From 1897bdc4d33167e9036460631d1349e59d841f2d Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 13 Nov 2014 13:46:09 +1100
Subject: mmu_notifier: add mmu_notifier_invalidate_range()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This notifier closes an important gap in the current mmu_notifier
implementation, the existing callbacks are called too early or too late to
reliably manage a non-CPU TLB. Specifically, invalidate_range_start() is
called when all pages are still mapped and invalidate_range_end() when all
pages are unmapped and potentially freed.
This is fine when the users of the mmu_notifiers manage their own SoftTLB,
like KVM does. When the TLB is managed in software it is easy to wipe out
entries for a given range and prevent new entries to be established until
invalidate_range_end is called.
But when the user of mmu_notifiers has to manage a hardware TLB it can
still wipe out TLB entries in invalidate_range_start, but it can't make
sure that no new TLB entries in the given range are established between
invalidate_range_start and invalidate_range_end.
To avoid silent data corruption the entries in the non-CPU TLB need to be
flushed when the pages are unmapped (at this point in time no _new_ TLB
entries can be established in the non-CPU TLB) but not yet freed (as the
non-CPU TLB may still have _existing_ entries pointing to the pages about
to be freed).
To fix this problem we need to catch the moment when the Linux VMM flushes
remote TLBs (as a non-CPU TLB is not very CPU TLB), as this is the point
in time when the pages are unmapped but _not_ yet freed.
The mmu_notifier_invalidate_range() function aims to catch that moment.
IOMMU code will be one user of the notifier-callback. Currently this is
only the AMD IOMMUv2 driver, but its code is about to be more generalized
and converted to a generic IOMMU-API extension to fit the needs of similar
functionality in other IOMMUs as well.
The current attempt in the AMD IOMMUv2 driver to work around the
invalidate_range_start/end() shortcoming is to assign an empty page table
to the non-CPU TLB between any invalidata_range_start/end calls. With the
empty page-table assigned, every page-table walk to re-fill the non-CPU
TLB will cause a page-fault reported to the IOMMU driver via an interrupt,
possibly causing interrupt storms.
The page-fault handler in the AMD IOMMUv2 driver doesn't handle the fault
if an invalidate_range_start/end pair is active, it just reports back
SUCCESS to the device and let it refault the page. But existing hardware
(newer Radeon GPUs) that makes use of this feature don't re-fault
indefinitly, after a certain number of faults for the same address the
device enters a failure state and needs to be resetted.
To avoid the GPUs entering a failure state we need to get rid of the
empty-page-table workaround and use the mmu_notifier_invalidate_range()
function introduced with this patch.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Jay Cornwall <Jay.Cornwall@amd.com>
Cc: Oded Gabbay <Oded.Gabbay@amd.com>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
---
include/linux/mmu_notifier.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 88787bb4b3b9..17907908d1df 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -242,6 +242,11 @@ static inline void mmu_notifier_invalidate_range_end(struct mm_struct *mm,
__mmu_notifier_invalidate_range_end(mm, start, end);
}
+static inline void mmu_notifier_invalidate_range(struct mm_struct *mm,
+ unsigned long start, unsigned long end)
+{
+}
+
static inline void mmu_notifier_mm_init(struct mm_struct *mm)
{
mm->mmu_notifier_mm = NULL;
@@ -342,6 +347,11 @@ static inline void mmu_notifier_invalidate_range_end(struct mm_struct *mm,
{
}
+static inline void mmu_notifier_invalidate_range(struct mm_struct *mm,
+ unsigned long start, unsigned long end)
+{
+}
+
static inline void mmu_notifier_mm_init(struct mm_struct *mm)
{
}
--
cgit v1.2.1
From 34ee645e83b60ae3d5955f70ab9ab9a159136673 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 13 Nov 2014 13:46:09 +1100
Subject: mmu_notifier: call mmu_notifier_invalidate_range() from VMM
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Add calls to the new mmu_notifier_invalidate_range() function to all
places in the VMM that need it.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Jay Cornwall <Jay.Cornwall@amd.com>
Cc: Oded Gabbay <Oded.Gabbay@amd.com>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
---
include/linux/mmu_notifier.h | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 17907908d1df..966da2b4b803 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -284,6 +284,44 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm)
__young; \
})
+#define ptep_clear_flush_notify(__vma, __address, __ptep) \
+({ \
+ unsigned long ___addr = __address & PAGE_MASK; \
+ struct mm_struct *___mm = (__vma)->vm_mm; \
+ pte_t ___pte; \
+ \
+ ___pte = ptep_clear_flush(__vma, __address, __ptep); \
+ mmu_notifier_invalidate_range(___mm, ___addr, \
+ ___addr + PAGE_SIZE); \
+ \
+ ___pte; \
+})
+
+#define pmdp_clear_flush_notify(__vma, __haddr, __pmd) \
+({ \
+ unsigned long ___haddr = __haddr & HPAGE_PMD_MASK; \
+ struct mm_struct *___mm = (__vma)->vm_mm; \
+ pmd_t ___pmd; \
+ \
+ ___pmd = pmdp_clear_flush(__vma, __haddr, __pmd); \
+ mmu_notifier_invalidate_range(___mm, ___haddr, \
+ ___haddr + HPAGE_PMD_SIZE); \
+ \
+ ___pmd; \
+})
+
+#define pmdp_get_and_clear_notify(__mm, __haddr, __pmd) \
+({ \
+ unsigned long ___haddr = __haddr & HPAGE_PMD_MASK; \
+ pmd_t ___pmd; \
+ \
+ ___pmd = pmdp_get_and_clear(__mm, __haddr, __pmd); \
+ mmu_notifier_invalidate_range(__mm, ___haddr, \
+ ___haddr + HPAGE_PMD_SIZE); \
+ \
+ ___pmd; \
+})
+
/*
* set_pte_at_notify() sets the pte _after_ running the notifier.
* This is safe to start by updating the secondary MMUs, because the primary MMU
@@ -362,6 +400,9 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm)
#define ptep_clear_flush_young_notify ptep_clear_flush_young
#define pmdp_clear_flush_young_notify pmdp_clear_flush_young
+#define ptep_clear_flush_notify ptep_clear_flush
+#define pmdp_clear_flush_notify pmdp_clear_flush
+#define pmdp_get_and_clear_notify pmdp_get_and_clear
#define set_pte_at_notify set_pte_at
#endif /* CONFIG_MMU_NOTIFIER */
--
cgit v1.2.1
From 0f0a327fa12cd55de5e7f8c05a70ac3d047f405e Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 13 Nov 2014 13:46:09 +1100
Subject: mmu_notifier: add the callback for mmu_notifier_invalidate_range()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Now that the mmu_notifier_invalidate_range() calls are in place, add the
callback to allow subsystems to register against it.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Jay Cornwall <Jay.Cornwall@amd.com>
Cc: Oded Gabbay <Oded.Gabbay@amd.com>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
---
include/linux/mmu_notifier.h | 37 ++++++++++++++++++++++++++++++++-----
1 file changed, 32 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 966da2b4b803..94d19f64cecf 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -98,11 +98,11 @@ struct mmu_notifier_ops {
/*
* invalidate_range_start() and invalidate_range_end() must be
* paired and are called only when the mmap_sem and/or the
- * locks protecting the reverse maps are held. The subsystem
- * must guarantee that no additional references are taken to
- * the pages in the range established between the call to
- * invalidate_range_start() and the matching call to
- * invalidate_range_end().
+ * locks protecting the reverse maps are held. If the subsystem
+ * can't guarantee that no additional references are taken to
+ * the pages in the range, it has to implement the
+ * invalidate_range() notifier to remove any references taken
+ * after invalidate_range_start().
*
* Invalidation of multiple concurrent ranges may be
* optionally permitted by the driver. Either way the
@@ -144,6 +144,29 @@ struct mmu_notifier_ops {
void (*invalidate_range_end)(struct mmu_notifier *mn,
struct mm_struct *mm,
unsigned long start, unsigned long end);
+
+ /*
+ * invalidate_range() is either called between
+ * invalidate_range_start() and invalidate_range_end() when the
+ * VM has to free pages that where unmapped, but before the
+ * pages are actually freed, or outside of _start()/_end() when
+ * a (remote) TLB is necessary.
+ *
+ * If invalidate_range() is used to manage a non-CPU TLB with
+ * shared page-tables, it not necessary to implement the
+ * invalidate_range_start()/end() notifiers, as
+ * invalidate_range() alread catches the points in time when an
+ * external TLB range needs to be flushed.
+ *
+ * The invalidate_range() function is called under the ptl
+ * spin-lock and not allowed to sleep.
+ *
+ * Note that this function might be called with just a sub-range
+ * of what was passed to invalidate_range_start()/end(), if
+ * called between those functions.
+ */
+ void (*invalidate_range)(struct mmu_notifier *mn, struct mm_struct *mm,
+ unsigned long start, unsigned long end);
};
/*
@@ -190,6 +213,8 @@ extern void __mmu_notifier_invalidate_range_start(struct mm_struct *mm,
unsigned long start, unsigned long end);
extern void __mmu_notifier_invalidate_range_end(struct mm_struct *mm,
unsigned long start, unsigned long end);
+extern void __mmu_notifier_invalidate_range(struct mm_struct *mm,
+ unsigned long start, unsigned long end);
static inline void mmu_notifier_release(struct mm_struct *mm)
{
@@ -245,6 +270,8 @@ static inline void mmu_notifier_invalidate_range_end(struct mm_struct *mm,
static inline void mmu_notifier_invalidate_range(struct mm_struct *mm,
unsigned long start, unsigned long end)
{
+ if (mm_has_notifiers(mm))
+ __mmu_notifier_invalidate_range(mm, start, end);
}
static inline void mmu_notifier_mm_init(struct mm_struct *mm)
--
cgit v1.2.1
From b7facbaec75a20f34c2065121dc423971682f922 Mon Sep 17 00:00:00 2001
From: Oded Gabbay <oded.gabbay@amd.com>
Date: Wed, 16 Jul 2014 15:55:29 +0300
Subject: amdkfd: Add IOCTL set definitions of amdkfd
- KFD_IOC_GET_VERSION:
Retrieves the interface version of amdkfd
- KFD_IOC_CREATE_QUEUE:
Creates a usermode queue that runs on a specific GPU device
- KFD_IOC_DESTROY_QUEUE:
Destroys an existing usermode queue
- KFD_IOC_SET_MEMORY_POLICY:
Sets the memory policy of the default and alternate aperture of the
calling process
- KFD_IOC_GET_CLOCK_COUNTERS:
Retrieves counters (timestamps) of CPU and GPU
- KFD_IOC_GET_PROCESS_APERTURES:
Retrieves information about process apertures that were initialized
during the open() call of the amdkfd device
- KFD_IOC_UPDATE_QUEUE:
Updates configuration of an existing usermode queue
v3: Remove pragma pack and pmc ioctls. Added parameter for doorbell offset and
a comment on counters
v5:
Add define for AQL queues.
Fix arguments of Get Version IOCTL
Make IOCTL's structures to be the same size on 32/64 bit
v6: Change the version of the amdkfd-thunk interface
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
---
include/uapi/linux/kfd_ioctl.h | 154 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 154 insertions(+)
create mode 100644 include/uapi/linux/kfd_ioctl.h
(limited to 'include')
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
new file mode 100644
index 000000000000..7acef41fc209
--- /dev/null
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2014 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef KFD_IOCTL_H_INCLUDED
+#define KFD_IOCTL_H_INCLUDED
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define KFD_IOCTL_MAJOR_VERSION 1
+#define KFD_IOCTL_MINOR_VERSION 0
+
+struct kfd_ioctl_get_version_args {
+ uint32_t major_version; /* from KFD */
+ uint32_t minor_version; /* from KFD */
+};
+
+/* For kfd_ioctl_create_queue_args.queue_type. */
+#define KFD_IOC_QUEUE_TYPE_COMPUTE 0
+#define KFD_IOC_QUEUE_TYPE_SDMA 1
+#define KFD_IOC_QUEUE_TYPE_COMPUTE_AQL 2
+
+#define KFD_MAX_QUEUE_PERCENTAGE 100
+#define KFD_MAX_QUEUE_PRIORITY 15
+
+struct kfd_ioctl_create_queue_args {
+ uint64_t ring_base_address; /* to KFD */
+ uint64_t write_pointer_address; /* from KFD */
+ uint64_t read_pointer_address; /* from KFD */
+ uint64_t doorbell_offset; /* from KFD */
+
+ uint32_t ring_size; /* to KFD */
+ uint32_t gpu_id; /* to KFD */
+ uint32_t queue_type; /* to KFD */
+ uint32_t queue_percentage; /* to KFD */
+ uint32_t queue_priority; /* to KFD */
+ uint32_t queue_id; /* from KFD */
+
+ uint64_t eop_buffer_address; /* to KFD */
+ uint64_t eop_buffer_size; /* to KFD */
+ uint64_t ctx_save_restore_address; /* to KFD */
+ uint64_t ctx_save_restore_size; /* to KFD */
+};
+
+struct kfd_ioctl_destroy_queue_args {
+ uint32_t queue_id; /* to KFD */
+ uint32_t pad;
+};
+
+struct kfd_ioctl_update_queue_args {
+ uint64_t ring_base_address; /* to KFD */
+
+ uint32_t queue_id; /* to KFD */
+ uint32_t ring_size; /* to KFD */
+ uint32_t queue_percentage; /* to KFD */
+ uint32_t queue_priority; /* to KFD */
+};
+
+/* For kfd_ioctl_set_memory_policy_args.default_policy and alternate_policy */
+#define KFD_IOC_CACHE_POLICY_COHERENT 0
+#define KFD_IOC_CACHE_POLICY_NONCOHERENT 1
+
+struct kfd_ioctl_set_memory_policy_args {
+ uint64_t alternate_aperture_base; /* to KFD */
+ uint64_t alternate_aperture_size; /* to KFD */
+
+ uint32_t gpu_id; /* to KFD */
+ uint32_t default_policy; /* to KFD */
+ uint32_t alternate_policy; /* to KFD */
+ uint32_t pad;
+};
+
+/*
+ * All counters are monotonic. They are used for profiling of compute jobs.
+ * The profiling is done by userspace.
+ *
+ * In case of GPU reset, the counter should not be affected.
+ */
+
+struct kfd_ioctl_get_clock_counters_args {
+ uint64_t gpu_clock_counter; /* from KFD */
+ uint64_t cpu_clock_counter; /* from KFD */
+ uint64_t system_clock_counter; /* from KFD */
+ uint64_t system_clock_freq; /* from KFD */
+
+ uint32_t gpu_id; /* to KFD */
+ uint32_t pad;
+};
+
+#define NUM_OF_SUPPORTED_GPUS 7
+
+struct kfd_process_device_apertures {
+ uint64_t lds_base; /* from KFD */
+ uint64_t lds_limit; /* from KFD */
+ uint64_t scratch_base; /* from KFD */
+ uint64_t scratch_limit; /* from KFD */
+ uint64_t gpuvm_base; /* from KFD */
+ uint64_t gpuvm_limit; /* from KFD */
+ uint32_t gpu_id; /* from KFD */
+ uint32_t pad;
+};
+
+struct kfd_ioctl_get_process_apertures_args {
+ struct kfd_process_device_apertures
+ process_apertures[NUM_OF_SUPPORTED_GPUS];/* from KFD */
+
+ /* from KFD, should be in the range [1 - NUM_OF_SUPPORTED_GPUS] */
+ uint32_t num_of_nodes;
+ uint32_t pad;
+};
+
+#define KFD_IOC_MAGIC 'K'
+
+#define KFD_IOC_GET_VERSION \
+ _IOR(KFD_IOC_MAGIC, 1, struct kfd_ioctl_get_version_args)
+
+#define KFD_IOC_CREATE_QUEUE \
+ _IOWR(KFD_IOC_MAGIC, 2, struct kfd_ioctl_create_queue_args)
+
+#define KFD_IOC_DESTROY_QUEUE \
+ _IOWR(KFD_IOC_MAGIC, 3, struct kfd_ioctl_destroy_queue_args)
+
+#define KFD_IOC_SET_MEMORY_POLICY \
+ _IOW(KFD_IOC_MAGIC, 4, struct kfd_ioctl_set_memory_policy_args)
+
+#define KFD_IOC_GET_CLOCK_COUNTERS \
+ _IOWR(KFD_IOC_MAGIC, 5, struct kfd_ioctl_get_clock_counters_args)
+
+#define KFD_IOC_GET_PROCESS_APERTURES \
+ _IOR(KFD_IOC_MAGIC, 6, struct kfd_ioctl_get_process_apertures_args)
+
+#define KFD_IOC_UPDATE_QUEUE \
+ _IOW(KFD_IOC_MAGIC, 7, struct kfd_ioctl_update_queue_args)
+
+#endif
--
cgit v1.2.1
From 100a8fdbf525bb11796692a713c267be6523a890 Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punit.agrawal@arm.com>
Date: Tue, 29 Jul 2014 11:50:48 +0100
Subject: thermal: trace: Trace temperature changes
Create a new event to trace the temperature of a thermal zone. Using
this event trace the temperature changes of the thermal zone every-time
it is updated.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/trace/events/thermal.h | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100644 include/trace/events/thermal.h
(limited to 'include')
diff --git a/include/trace/events/thermal.h b/include/trace/events/thermal.h
new file mode 100644
index 000000000000..8c5ca96eccd6
--- /dev/null
+++ b/include/trace/events/thermal.h
@@ -0,0 +1,38 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM thermal
+
+#if !defined(_TRACE_THERMAL_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_THERMAL_H
+
+#include <linux/thermal.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(thermal_temperature,
+
+ TP_PROTO(struct thermal_zone_device *tz),
+
+ TP_ARGS(tz),
+
+ TP_STRUCT__entry(
+ __string(thermal_zone, tz->type)
+ __field(int, id)
+ __field(int, temp_prev)
+ __field(int, temp)
+ ),
+
+ TP_fast_assign(
+ __assign_str(thermal_zone, tz->type);
+ __entry->id = tz->id;
+ __entry->temp_prev = tz->last_temperature;
+ __entry->temp = tz->temperature;
+ ),
+
+ TP_printk("thermal_zone=%s id=%d temp_prev=%d temp=%d",
+ __get_str(thermal_zone), __entry->id, __entry->temp_prev,
+ __entry->temp)
+);
+
+#endif /* _TRACE_THERMAL_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
--
cgit v1.2.1
From 39811569e43a81417bc0ddca3d0c7658c3dcd4b0 Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punit.agrawal@arm.com>
Date: Tue, 29 Jul 2014 11:50:49 +0100
Subject: thermal: trace: Trace when a cooling device's state is updated
Introduce and use an event to trace when a cooling device's state is
updated. This is useful to follow the effect of governor decisions on
cooling devices.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/trace/events/thermal.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/thermal.h b/include/trace/events/thermal.h
index 8c5ca96eccd6..894a79ea0686 100644
--- a/include/trace/events/thermal.h
+++ b/include/trace/events/thermal.h
@@ -32,6 +32,25 @@ TRACE_EVENT(thermal_temperature,
__entry->temp)
);
+TRACE_EVENT(cdev_update,
+
+ TP_PROTO(struct thermal_cooling_device *cdev, unsigned long target),
+
+ TP_ARGS(cdev, target),
+
+ TP_STRUCT__entry(
+ __string(type, cdev->type)
+ __field(unsigned long, target)
+ ),
+
+ TP_fast_assign(
+ __assign_str(type, cdev->type);
+ __entry->target = target;
+ ),
+
+ TP_printk("type=%s target=%lu", __get_str(type), __entry->target)
+);
+
#endif /* _TRACE_THERMAL_H */
/* This part must be outside protection */
--
cgit v1.2.1
From 208cd822a19e683bc890f6708786f2420e172d76 Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punit.agrawal@arm.com>
Date: Tue, 29 Jul 2014 11:50:50 +0100
Subject: thermal: trace: Trace when temperature is above a trip point
Create a new event to trace when the temperature is above a trip
point. Use the trace-point when handling non-critical and critical
trip pionts.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/trace/events/thermal.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/thermal.h b/include/trace/events/thermal.h
index 894a79ea0686..0f4f95d63c03 100644
--- a/include/trace/events/thermal.h
+++ b/include/trace/events/thermal.h
@@ -51,6 +51,32 @@ TRACE_EVENT(cdev_update,
TP_printk("type=%s target=%lu", __get_str(type), __entry->target)
);
+TRACE_EVENT(thermal_zone_trip,
+
+ TP_PROTO(struct thermal_zone_device *tz, int trip,
+ enum thermal_trip_type trip_type),
+
+ TP_ARGS(tz, trip, trip_type),
+
+ TP_STRUCT__entry(
+ __string(thermal_zone, tz->type)
+ __field(int, id)
+ __field(int, trip)
+ __field(enum thermal_trip_type, trip_type)
+ ),
+
+ TP_fast_assign(
+ __assign_str(thermal_zone, tz->type);
+ __entry->id = tz->id;
+ __entry->trip = trip;
+ __entry->trip_type = trip_type;
+ ),
+
+ TP_printk("thermal_zone=%s id=%d trip=%d trip_type=%d",
+ __get_str(thermal_zone), __entry->id, __entry->trip,
+ __entry->trip_type)
+);
+
#endif /* _TRACE_THERMAL_H */
/* This part must be outside protection */
--
cgit v1.2.1
From eaf99c749d43ae74ac7ffece5512f3c73f01dfd2 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 6 Aug 2014 10:08:32 +0200
Subject: drm: Perform cmdline mode parsing during connector initialisation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
i915.ko has a custom fbdev initialisation routine that aims to preserve
the current mode set by the BIOS, unless overruled by the user. The
user's wishes are determined by what, if any, mode is specified on the
command line (via the video= parameter). However, that command line mode
is first parsed by drm_fb_helper_initial_config() which is called after
i915.ko's custom initial_config() as a fallback method. So in order for
us to honour it, we need to move the cmdline parser earlier. If we
perform the connector cmdline parsing as soon as we initialise the
connector, that cmdline mode and forced status is then available even if
the fbdev helper is not compiled in or never called.
We also then expose the cmdline user mode in the connector mode lists.
v2: Rebase after connector->name upheaval.
v3: Adapt mga200 to look for the cmdline mode in the new place. Nicely
simplifies things while at that.
v4: Fix checkpatch.
v5: Select FB_CMDLINE to adapt to the changed fbdev patch.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73154
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (v2)
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> (v2)
Cc: dri-devel@lists.freedesktop.org
Cc: Julia Lemire <jlemire@matrox.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 1 +
include/drm/drm_fb_helper.h | 1 -
2 files changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index f1105d0da059..c530b4920a09 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -548,6 +548,7 @@ struct drm_connector {
void *helper_private;
/* forced on connector */
+ struct drm_cmdline_mode cmdline_mode;
enum drm_connector_force force;
bool override_edid;
uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index bfd329d613c4..f4ad254e3488 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -77,7 +77,6 @@ struct drm_fb_helper_funcs {
struct drm_fb_helper_connector {
struct drm_connector *connector;
- struct drm_cmdline_mode cmdline_mode;
};
struct drm_fb_helper {
--
cgit v1.2.1
From 4ed0ce3d0bccd74416ba6beb33a8a79d1617e97b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Wed, 6 Aug 2014 14:49:53 +0300
Subject: drm: Disable vblank interrupt immediately when drm_vblank_offdelay<0
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Make drm_vblank_put() disable the vblank interrupt immediately when the
refcount drops to zero and drm_vblank_offdelay<0.
v2: Preserve the current drm_vblank_offdelay==0 'never disable' behaviur
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index a57646382086..24b32d453c60 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1345,7 +1345,7 @@ extern void drm_put_dev(struct drm_device *dev);
extern void drm_unplug_dev(struct drm_device *dev);
extern unsigned int drm_debug;
-extern unsigned int drm_vblank_offdelay;
+extern int drm_vblank_offdelay;
extern unsigned int drm_timestamp_precision;
extern unsigned int drm_timestamp_monotonic;
--
cgit v1.2.1
From 00185e667009dda907887a4f84fbd02c6e651a49 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Wed, 6 Aug 2014 14:49:54 +0300
Subject: drm: Add dev->vblank_disable_immediate flag
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Add a flag to drm_device which will cause the vblank code to bypass the
disable timer and always disable the vblank interrupt immediately when
the last reference is dropped.
v2: Add some notes about the flag to the kernel doc
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 24b32d453c60..17a5c10474bd 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1074,6 +1074,16 @@ struct drm_device {
*/
bool vblank_disable_allowed;
+ /*
+ * If true, vblank interrupt will be disabled immediately when the
+ * refcount drops to zero, as opposed to via the vblank disable
+ * timer.
+ * This can be set to true it the hardware has a working vblank
+ * counter and the driver uses drm_vblank_on() and drm_vblank_off()
+ * appropriately.
+ */
+ bool vblank_disable_immediate;
+
/* array of size num_crtcs */
struct drm_vblank_crtc *vblank;
--
cgit v1.2.1
From 020178a1bcadf20b9d057988984f374c905d542e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Thu, 22 May 2014 19:36:03 +0300
Subject: drm: Add drm_crtc_vblank_waitqueue()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Add a small static inline helper to grab the vblank wait queue based on
the drm_crtc.
This is useful for drivers to do internal vblank waits using
wait_event() & co.
v2: Pimp commit message (Daniel)
Add kernel doc (Daniel)
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d3d9be6b83ef..bb44c1ee557d 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1344,6 +1344,17 @@ extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
extern void drm_calc_timestamping_constants(struct drm_crtc *crtc,
const struct drm_display_mode *mode);
+/**
+ * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC
+ * @crtc: which CRTC's vblank waitqueue to retrieve
+ *
+ * This function returns a pointer to the vblank waitqueue for the CRTC.
+ * Drivers can use this to implement vblank waits using wait_event() & co.
+ */
+static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc)
+{
+ return &crtc->dev->vblank[drm_crtc_index(crtc)].queue;
+}
/* Modesetting support */
extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
--
cgit v1.2.1
From 2a297cce2e775812e9d6ca84c3ab92cee5c38e25 Mon Sep 17 00:00:00 2001
From: Sonika Jindal <sonika.jindal@intel.com>
Date: Tue, 5 Aug 2014 11:26:54 +0530
Subject: drm: Add rotation_property to mode_config
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index f1105d0da059..62f73bdbcc47 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -821,6 +821,7 @@ struct drm_mode_config {
struct drm_property *dpms_property;
struct drm_property *path_property;
struct drm_property *plane_type_property;
+ struct drm_property *rotation_property;
/* DVI-I properties */
struct drm_property *dvi_i_subconnector_property;
--
cgit v1.2.1
From 10f637bf292ba501f9b9e9df6dfe21d8fa521fbd Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 29 Jul 2014 13:47:11 +0200
Subject: drm: Add drm_plane/connector_index
In the atomic state we'll have an array of states for crtcs, planes
and connectors and need to be able to at them by their index. We
already have a drm_crtc_index function so add the missing ones for
planes and connectors.
If it later on turns out that the list walking is too expensive we can
add the index to the relevant modeset objects.
Rob Clark doesn't like the loops too much, but we can always add an
obj->idx parameter later on. And for now reiterating is actually safer
since nowadays we have hotpluggable connectors (thanks to DP MST).
v2: Fix embarrassing copypasta fail in kerneldoc and header
declarations, spotted by Matt Roper.
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c530b4920a09..9f18e7022ab3 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -904,6 +904,7 @@ int drm_connector_register(struct drm_connector *connector);
void drm_connector_unregister(struct drm_connector *connector);
extern void drm_connector_cleanup(struct drm_connector *connector);
+extern unsigned int drm_connector_index(struct drm_connector *connector);
/* helper to unplug all connectors from sysfs for device */
extern void drm_connector_unplug_all(struct drm_device *dev);
@@ -943,6 +944,7 @@ extern int drm_plane_init(struct drm_device *dev,
const uint32_t *formats, uint32_t format_count,
bool is_primary);
extern void drm_plane_cleanup(struct drm_plane *plane);
+extern unsigned int drm_plane_index(struct drm_plane *plane);
extern void drm_plane_force_disable(struct drm_plane *plane);
extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,
int x, int y,
--
cgit v1.2.1
From a6a8bb848d5ca40bc0eb708ddeb23df2b0eca1fb Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri, 25 Jul 2014 17:47:18 +0200
Subject: drm: Move modeset_lock_all helpers to drm_modeset_lock.[hc]
Somehow we've forgotten about this little bit of OCD.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 4 ----
include/drm/drm_modeset_lock.h | 5 +++++
2 files changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 9f18e7022ab3..a11d73422e7f 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -218,10 +218,6 @@ struct drm_property {
struct list_head enum_blob_list;
};
-void drm_modeset_lock_all(struct drm_device *dev);
-void drm_modeset_unlock_all(struct drm_device *dev);
-void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
-
struct drm_crtc;
struct drm_connector;
struct drm_encoder;
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index 402aa7a6a058..cf61e857bc06 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -120,6 +120,11 @@ int drm_modeset_lock_interruptible(struct drm_modeset_lock *lock,
void drm_modeset_unlock(struct drm_modeset_lock *lock);
struct drm_device;
+
+void drm_modeset_lock_all(struct drm_device *dev);
+void drm_modeset_unlock_all(struct drm_device *dev);
+void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
+
int drm_modeset_lock_all_crtcs(struct drm_device *dev,
struct drm_modeset_acquire_ctx *ctx);
--
cgit v1.2.1
From d059f652e73c35678d28d4cd09ab2cec89696af9 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri, 25 Jul 2014 18:07:40 +0200
Subject: drm: Handle legacy per-crtc locking with full acquire ctx
So drivers using the atomic interfaces expect that they can acquire
additional locks internal to the driver as-needed. Examples would be
locks to protect shared state like shared display PLLs.
Unfortunately the legacy ioctls assume that all locking is fully done
by the drm core. Now for those paths which grab all locks we already
have to keep around an acquire context in dev->mode_config. Helper
functions that implement legacy interfaces in terms of atomic support
can therefore grab this acquire contexts and reuse it.
The only interfaces left are the cursor and pageflip ioctls. So add
functions to grab the crtc lock these need using an acquire context
and preserve it for atomic drivers to reuse.
v2:
- Fixup comments&kerneldoc.
- Drop the WARNING from modeset_lock_all_crtcs since that can be used
in legacy paths with crtc locking.
v3: Fix a type on the kerneldoc Dave spotted.
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 6 ++++++
include/drm/drm_modeset_lock.h | 5 +++++
2 files changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index a11d73422e7f..508817bae538 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -371,6 +371,12 @@ struct drm_crtc {
void *helper_private;
struct drm_object_properties properties;
+
+ /*
+ * For legacy crtc ioctls so that atomic drivers can get at the locking
+ * acquire context.
+ */
+ struct drm_modeset_acquire_ctx *acquire_ctx;
};
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index cf61e857bc06..d38e1508f11a 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -120,10 +120,15 @@ int drm_modeset_lock_interruptible(struct drm_modeset_lock *lock,
void drm_modeset_unlock(struct drm_modeset_lock *lock);
struct drm_device;
+struct drm_crtc;
void drm_modeset_lock_all(struct drm_device *dev);
void drm_modeset_unlock_all(struct drm_device *dev);
+void drm_modeset_lock_crtc(struct drm_crtc *crtc);
+void drm_modeset_unlock_crtc(struct drm_crtc *crtc);
void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
+struct drm_modeset_acquire_ctx *
+drm_modeset_legacy_acquire_ctx(struct drm_crtc *crtc);
int drm_modeset_lock_all_crtcs(struct drm_device *dev,
struct drm_modeset_acquire_ctx *ctx);
--
cgit v1.2.1
From 3d30a59bfcb7c96d4aacdb053c2ccc49394b2311 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun, 27 Jul 2014 13:42:42 +0200
Subject: drm: Move ->old_fb from crtc to plane
Atomic implemenations for legacy ioctls must be able to drop locks.
Which doesn't cause havoc since we only do that while constructing
the new state, so no driver or hardware state change has happened.
The only troubling bit is the fb refcounting the core does - if
someone else has snuck in then it might potentially unref an
outdated framebuffer. To fix that move the old_fb temporary storage
into struct drm_plane for all ioctls, so that the atomic helpers can
update it.
v2: Fix up the error case handling as suggested by Matt Roper and just
grab locks uncoditionally - there's no point in optimizing the locking
for when userspace gets it wrong.
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 508817bae538..279565aa0c33 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -341,10 +341,6 @@ struct drm_crtc {
int cursor_x;
int cursor_y;
- /* Temporary tracking of the old fb while a modeset is ongoing. Used
- * by drm_mode_set_config_internal to implement correct refcounting. */
- struct drm_framebuffer *old_fb;
-
bool enabled;
/* Requested mode from modesetting. */
@@ -623,6 +619,10 @@ struct drm_plane {
struct drm_crtc *crtc;
struct drm_framebuffer *fb;
+ /* Temporary tracking of the old fb while a modeset is ongoing. Used
+ * by drm_mode_set_config_internal to implement correct refcounting. */
+ struct drm_framebuffer *old_fb;
+
const struct drm_plane_funcs *funcs;
struct drm_object_properties properties;
--
cgit v1.2.1
From cb597bb3a2fbfc871cc1c703fb330d247bd21394 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun, 27 Jul 2014 19:09:33 +0200
Subject: drm: trylock modest locking for fbdev panics
In the fbdev code we want to do trylocks only to avoid deadlocks and
other ugly issues. Thus far we've only grabbed the overall modeset
lock, but that already failed to exclude a pile of potential
concurrent operations. With proper atomic support this will be worse.
So add a trylock mode to the modeset locking code which attempts all
locks only with trylocks, if possible. We need to track this in the
locking functions themselves and can't restrict this to drivers since
driver-private w/w mutexes must be treated the same way.
There's still the issue that other driver private locks aren't handled
here at all, but well can't have everything. With this we will at
least not regress, even once atomic allows lots of concurrent kms
activity.
Aside: We should move the acquire context to stack-based allocation in
the callers to get rid of that awful WARN_ON(kmalloc_failed) control
flow which just blows up when memory is short. But that's material for
separate patches.
v2:
- Fix logic inversion fumble in the fb helper.
- Add proper kerneldoc.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_modeset_lock.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index d38e1508f11a..a3f736d24382 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -53,6 +53,11 @@ struct drm_modeset_acquire_ctx {
* list of held locks (drm_modeset_lock)
*/
struct list_head locked;
+
+ /**
+ * Trylock mode, use only for panic handlers!
+ */
+ bool trylock_only;
};
/**
@@ -123,6 +128,7 @@ struct drm_device;
struct drm_crtc;
void drm_modeset_lock_all(struct drm_device *dev);
+int __drm_modeset_lock_all(struct drm_device *dev, bool trylock);
void drm_modeset_unlock_all(struct drm_device *dev);
void drm_modeset_lock_crtc(struct drm_crtc *crtc);
void drm_modeset_unlock_crtc(struct drm_crtc *crtc);
--
cgit v1.2.1
From fd3cbdc0d1b5254a2e8793df58c409b469899a3f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Sun, 10 Aug 2014 08:53:39 +0200
Subject: jump_label: Fix small typos in the documentation
Was reading through the documentation of this code and noticed
a few typos, missing commas, etc.
Cc: Jason Baron <jbaron@akamai.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/jump_label.h | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 784304b222b3..98f923b6a0ea 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -8,28 +8,28 @@
* Copyright (C) 2011-2012 Peter Zijlstra <pzijlstr@redhat.com>
*
* Jump labels provide an interface to generate dynamic branches using
- * self-modifying code. Assuming toolchain and architecture support the result
- * of a "if (static_key_false(&key))" statement is a unconditional branch (which
+ * self-modifying code. Assuming toolchain and architecture support, the result
+ * of a "if (static_key_false(&key))" statement is an unconditional branch (which
* defaults to false - and the true block is placed out of line).
*
* However at runtime we can change the branch target using
* static_key_slow_{inc,dec}(). These function as a 'reference' count on the key
- * object and for as long as there are references all branches referring to
+ * object, and for as long as there are references all branches referring to
* that particular key will point to the (out of line) true block.
*
- * Since this relies on modifying code the static_key_slow_{inc,dec}() functions
+ * Since this relies on modifying code, the static_key_slow_{inc,dec}() functions
* must be considered absolute slow paths (machine wide synchronization etc.).
- * OTOH, since the affected branches are unconditional their runtime overhead
+ * OTOH, since the affected branches are unconditional, their runtime overhead
* will be absolutely minimal, esp. in the default (off) case where the total
* effect is a single NOP of appropriate size. The on case will patch in a jump
* to the out-of-line block.
*
- * When the control is directly exposed to userspace it is prudent to delay the
+ * When the control is directly exposed to userspace, it is prudent to delay the
* decrement to avoid high frequency code modifications which can (and do)
* cause significant performance degradation. Struct static_key_deferred and
* static_key_slow_dec_deferred() provide for this.
*
- * Lacking toolchain and or architecture support, it falls back to a simple
+ * Lacking toolchain and or architecture support, jump labels fall back to a simple
* conditional branch.
*
* struct static_key my_key = STATIC_KEY_INIT_TRUE;
@@ -43,8 +43,7 @@
*
* Not initializing the key (static data is initialized to 0s anyway) is the
* same as using STATIC_KEY_INIT_FALSE.
- *
-*/
+ */
#include <linux/types.h>
#include <linux/compiler.h>
--
cgit v1.2.1
From 2a0d7cfd9482ca4c10a4d8794791760a6a7ce40c Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 29 Jul 2014 15:32:37 +0200
Subject: drm: Add a plane->reset hook
In general having this can't hurt, and the atomic helpers will need
it to be able to reset the state objects properly. The overall idea
is to reset in the order pixels flow, so planes -> crtcs ->
encoders -> connectors.
v2: Squash in fixup from Ville to correctly deference struct drm_plane
instead of drm_crtc when walking the plane list. Fixes an oops in
driver init and resume.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 279565aa0c33..2c1f58d6957a 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -581,6 +581,7 @@ struct drm_plane_funcs {
uint32_t src_w, uint32_t src_h);
int (*disable_plane)(struct drm_plane *plane);
void (*destroy)(struct drm_plane *plane);
+ void (*reset)(struct drm_plane *plane);
int (*set_property)(struct drm_plane *plane,
struct drm_property *property, uint64_t val);
--
cgit v1.2.1
From e8450f51a4b39cfe0878b4aee339820b2bfff240 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri, 25 Jul 2014 23:34:03 +0200
Subject: drm/irq: Implement a generic vblank_wait function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
As usual in both a crtc index and a struct drm_crtc * version.
The function assumes that no one drivers their display below 10Hz, and
it will complain if the vblank wait takes longer than that.
v2: Also check dev->max_vblank_counter since some drivers register a
fake get_vblank_counter function.
v3: Use drm_vblank_count instead of calling the low-level
->get_vblank_counter callback. That way we'll get the sw-cooked
counter for platforms without proper vblank support and so can ditch
the max_vblank_counter check again.
v4: Review from Michel Dänzer:
- Restore lost notes about v3:
- Spelling in kerneldoc.
- Inline wait_event condition.
- s/vblank_wait/wait_one_vblank/
Cc: Michel Dänzer <michel@daenzer.net>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d3d9be6b83ef..c2209178981f 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1327,6 +1327,8 @@ extern int drm_vblank_get(struct drm_device *dev, int crtc);
extern void drm_vblank_put(struct drm_device *dev, int crtc);
extern int drm_crtc_vblank_get(struct drm_crtc *crtc);
extern void drm_crtc_vblank_put(struct drm_crtc *crtc);
+extern void drm_wait_one_vblank(struct drm_device *dev, int crtc);
+extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc);
extern void drm_vblank_off(struct drm_device *dev, int crtc);
extern void drm_vblank_on(struct drm_device *dev, int crtc);
extern void drm_crtc_vblank_off(struct drm_crtc *crtc);
--
cgit v1.2.1
From f72a113a71ab08c4df8a5f80ab2f8a140feb81f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Thu, 7 Aug 2014 09:36:00 +0200
Subject: drm/radeon: add userptr support v8
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This patch adds an IOCTL for turning a pointer supplied by
userspace into a buffer object.
It imposes several restrictions upon the memory being mapped:
1. It must be page aligned (both start/end addresses, i.e ptr and size).
2. It must be normal system memory, not a pointer into another map of IO
space (e.g. it must not be a GTT mmapping of another object).
3. The BO is mapped into GTT, so the maximum amount of memory mapped at
all times is still the GTT limit.
4. The BO is only mapped readonly for now, so no write support.
5. List of backing pages is only acquired once, so they represent a
snapshot of the first use.
Exporting and sharing as well as mapping of buffer objects created by
this function is forbidden and results in an -EPERM.
v2: squash all previous changes into first public version
v3: fix tabs, map readonly, don't use MM callback any more
v4: set TTM_PAGE_FLAG_SG so that TTM never messes with the pages,
pin/unpin pages on bind/unbind instead of populate/unpopulate
v5: rebased on 3.17-wip, IOCTL renamed to userptr, reject any unknown
flags, better handle READONLY flag, improve permission check
v6: fix ptr cast warning, use set_page_dirty/mark_page_accessed on unpin
v7: add warning about it's availability in the API definition
v8: drop access_ok check, fix VM mapping bits
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v4)
Reviewed-by: Jérôme Glisse <jglisse@redhat.com> (v4)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
include/uapi/drm/radeon_drm.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 509b2d7a41b7..3a9f20930372 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -511,6 +511,7 @@ typedef struct {
#define DRM_RADEON_GEM_BUSY 0x2a
#define DRM_RADEON_GEM_VA 0x2b
#define DRM_RADEON_GEM_OP 0x2c
+#define DRM_RADEON_GEM_USERPTR 0x2d
#define DRM_IOCTL_RADEON_CP_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_RADEON_CP_INIT, drm_radeon_init_t)
#define DRM_IOCTL_RADEON_CP_START DRM_IO( DRM_COMMAND_BASE + DRM_RADEON_CP_START)
@@ -554,6 +555,7 @@ typedef struct {
#define DRM_IOCTL_RADEON_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_BUSY, struct drm_radeon_gem_busy)
#define DRM_IOCTL_RADEON_GEM_VA DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_VA, struct drm_radeon_gem_va)
#define DRM_IOCTL_RADEON_GEM_OP DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_OP, struct drm_radeon_gem_op)
+#define DRM_IOCTL_RADEON_GEM_USERPTR DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_USERPTR, struct drm_radeon_gem_userptr)
typedef struct drm_radeon_init {
enum {
@@ -808,6 +810,20 @@ struct drm_radeon_gem_create {
uint32_t flags;
};
+/*
+ * This is not a reliable API and you should expect it to fail for any
+ * number of reasons and have fallback path that do not use userptr to
+ * perform any operation.
+ */
+#define RADEON_GEM_USERPTR_READONLY (1 << 0)
+
+struct drm_radeon_gem_userptr {
+ uint64_t addr;
+ uint64_t size;
+ uint32_t flags;
+ uint32_t handle;
+};
+
#define RADEON_TILING_MACRO 0x1
#define RADEON_TILING_MICRO 0x2
#define RADEON_TILING_SWAP_16BIT 0x4
--
cgit v1.2.1
From ddd00e33e17a62c5f44377ab42e7562ccfae7bd1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Thu, 7 Aug 2014 09:36:01 +0200
Subject: drm/radeon: add userptr flag to limit it to anonymous memory v2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Avoid problems with writeback by limiting userptr to anonymous memory.
v2: add commit and code comments
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
include/uapi/drm/radeon_drm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 3a9f20930372..9720e1a36848 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -816,6 +816,7 @@ struct drm_radeon_gem_create {
* perform any operation.
*/
#define RADEON_GEM_USERPTR_READONLY (1 << 0)
+#define RADEON_GEM_USERPTR_ANONONLY (1 << 1)
struct drm_radeon_gem_userptr {
uint64_t addr;
--
cgit v1.2.1
From 2a84a4476d6e13de72472f6ca4338aed0a8269b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Thu, 7 Aug 2014 09:36:02 +0200
Subject: drm/radeon: add userptr flag to directly validate the BO to GTT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This way we test userptr availability at BO creation time instead of first use.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
include/uapi/drm/radeon_drm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 9720e1a36848..5dc61c2d4c73 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -817,6 +817,7 @@ struct drm_radeon_gem_create {
*/
#define RADEON_GEM_USERPTR_READONLY (1 << 0)
#define RADEON_GEM_USERPTR_ANONONLY (1 << 1)
+#define RADEON_GEM_USERPTR_VALIDATE (1 << 2)
struct drm_radeon_gem_userptr {
uint64_t addr;
--
cgit v1.2.1
From 341cb9e426fac32523427c80c67543a16be46605 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Thu, 7 Aug 2014 09:36:03 +0200
Subject: drm/radeon: add userptr flag to register MMU notifier v3
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Whenever userspace mapping related to our userptr change
we wait for it to become idle and unmap it from GTT.
v2: rebased, fix mutex unlock in error path
v3: improve commit message
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
include/uapi/drm/radeon_drm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 5dc61c2d4c73..c77495ffc44f 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -818,6 +818,7 @@ struct drm_radeon_gem_create {
#define RADEON_GEM_USERPTR_READONLY (1 << 0)
#define RADEON_GEM_USERPTR_ANONONLY (1 << 1)
#define RADEON_GEM_USERPTR_VALIDATE (1 << 2)
+#define RADEON_GEM_USERPTR_REGISTER (1 << 3)
struct drm_radeon_gem_userptr {
uint64_t addr;
--
cgit v1.2.1
From fadfe7be6e50de7f03913833b33c56cd8fb66bac Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@kernel.org>
Date: Fri, 1 Aug 2014 14:33:02 +0200
Subject: perf: Add queued work to remove orphaned child events
In cases when the owner task exits before the workload and the
workload made some forks, all the events stay in until the last
workload process exits. Thats' because each child event holds
parent reference.
We want to release all children events once the parent is gone,
because at that time there's no process to read them anyway, so
they're just eating resources.
This removal races with process exit, which removes all events
and fork, which clone events. To be clear of those two, adding
work queue to remove orphaned child for context in case such
event is detected.
Using delayed work queue (with delay == 1), because we queue this
work under perf scheduler callbacks. Normal work queue tries to wake
up the queue process, which deadlocks on rq->lock in this place.
Also preventing clones from abandoned parent event.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1406896382-18404-4-git-send-email-jolsa@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/perf_event.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 707617a8c0f6..ef5b62bdb103 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -52,6 +52,7 @@ struct perf_guest_info_callbacks {
#include <linux/atomic.h>
#include <linux/sysfs.h>
#include <linux/perf_regs.h>
+#include <linux/workqueue.h>
#include <asm/local.h>
struct perf_callchain_entry {
@@ -507,6 +508,9 @@ struct perf_event_context {
int nr_cgroups; /* cgroup evts */
int nr_branch_stack; /* branch_stack evt */
struct rcu_head rcu_head;
+
+ struct delayed_work orphans_remove;
+ bool orphans_remove_sched;
};
/*
--
cgit v1.2.1
From 770eee1fd38c70a009b321f5dbe64358f42511fd Mon Sep 17 00:00:00 2001
From: Stephane Eranian <eranian@google.com>
Date: Mon, 11 Aug 2014 21:27:12 +0200
Subject: perf/x86: Fix data source encoding issues for load latency/precise
store
This patch fixes issues introuduce by Andi's previous patch 'Revamp PEBS'
series.
This patch fixes the following:
- precise_store_data_hsw() encode the mem op type whenever we can
- precise_store_data_hsw set the default data source correctly
- 0 is not a valid init value for data source. Define PERF_MEM_NA as the
default value
This bug was actually introduced by
commit 722e76e60f2775c21b087ff12c5e678cf0ebcaaf
Author: Stephane Eranian <eranian@google.com>
Date: Thu May 15 17:56:44 2014 +0200
fix Haswell precise store data source encoding
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1407785233-32193-4-git-send-email-eranian@google.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: ak@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/perf_event.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index ef5b62bdb103..f0a1036b1911 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -608,6 +608,13 @@ struct perf_sample_data {
u64 txn;
};
+/* default value for data source */
+#define PERF_MEM_NA (PERF_MEM_S(OP, NA) |\
+ PERF_MEM_S(LVL, NA) |\
+ PERF_MEM_S(SNOOP, NA) |\
+ PERF_MEM_S(LOCK, NA) |\
+ PERF_MEM_S(TLB, NA))
+
static inline void perf_sample_data_init(struct perf_sample_data *data,
u64 addr, u64 period)
{
@@ -620,7 +627,7 @@ static inline void perf_sample_data_init(struct perf_sample_data *data,
data->regs_user.regs = NULL;
data->stack_user_size = 0;
data->weight = 0;
- data->data_src.val = 0;
+ data->data_src.val = PERF_MEM_NA;
data->txn = 0;
}
--
cgit v1.2.1
From 2e39465abc4b7856a0ea6fcf4f6b4668bb5db877 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 4 Aug 2014 12:07:15 +0200
Subject: locking: Remove deprecated smp_mb__() barriers
Its been a while and there are no in-tree users left, so remove the
deprecated barriers.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Chen, Gong <gong.chen@linux.intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Joe Perches <joe@perches.com>
Cc: John Sullivan <jsrhbz@kanargh.force9.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/atomic.h | 36 ------------------------------------
include/linux/bitops.h | 20 --------------------
2 files changed, 56 deletions(-)
(limited to 'include')
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index fef3a809e7cf..5b08a8540ecf 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -3,42 +3,6 @@
#define _LINUX_ATOMIC_H
#include <asm/atomic.h>
-/*
- * Provide __deprecated wrappers for the new interface, avoid flag day changes.
- * We need the ugly external functions to break header recursion hell.
- */
-#ifndef smp_mb__before_atomic_inc
-static inline void __deprecated smp_mb__before_atomic_inc(void)
-{
- extern void __smp_mb__before_atomic(void);
- __smp_mb__before_atomic();
-}
-#endif
-
-#ifndef smp_mb__after_atomic_inc
-static inline void __deprecated smp_mb__after_atomic_inc(void)
-{
- extern void __smp_mb__after_atomic(void);
- __smp_mb__after_atomic();
-}
-#endif
-
-#ifndef smp_mb__before_atomic_dec
-static inline void __deprecated smp_mb__before_atomic_dec(void)
-{
- extern void __smp_mb__before_atomic(void);
- __smp_mb__before_atomic();
-}
-#endif
-
-#ifndef smp_mb__after_atomic_dec
-static inline void __deprecated smp_mb__after_atomic_dec(void)
-{
- extern void __smp_mb__after_atomic(void);
- __smp_mb__after_atomic();
-}
-#endif
-
/**
* atomic_add_unless - add unless the number is already a given value
* @v: pointer of type atomic_t
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index cbc5833fb221..be5fd38bd5a0 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -32,26 +32,6 @@ extern unsigned long __sw_hweight64(__u64 w);
*/
#include <asm/bitops.h>
-/*
- * Provide __deprecated wrappers for the new interface, avoid flag day changes.
- * We need the ugly external functions to break header recursion hell.
- */
-#ifndef smp_mb__before_clear_bit
-static inline void __deprecated smp_mb__before_clear_bit(void)
-{
- extern void __smp_mb__before_atomic(void);
- __smp_mb__before_atomic();
-}
-#endif
-
-#ifndef smp_mb__after_clear_bit
-static inline void __deprecated smp_mb__after_clear_bit(void)
-{
- extern void __smp_mb__after_atomic(void);
- __smp_mb__after_atomic();
-}
-#endif
-
#define for_each_set_bit(bit, addr, size) \
for ((bit) = find_first_bit((addr), (size)); \
(bit) < (size); \
--
cgit v1.2.1
From 7608a43d8f2e02f8b532f8e11481d7ecf8b5d3f9 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Wed, 30 Jul 2014 13:41:54 -0700
Subject: locking/mutexes: Use MUTEX_SPIN_ON_OWNER when appropriate
4badad35 ("locking/mutex: Disable optimistic spinning on some
architectures") added a ARCH_SUPPORTS_ATOMIC_RMW flag to
disable the mutex optimistic feature on specific archs.
Because CONFIG_MUTEX_SPIN_ON_OWNER only depended on DEBUG and
SMP, it was ok to have the ->owner field conditional a bit
flexible. However by adding a new variable to the matter,
we can waste space with the unused field, ie: CONFIG_SMP &&
(!CONFIG_MUTEX_SPIN_ON_OWNER && !CONFIG_DEBUG_MUTEX).
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Acked-by: Jason Low <jason.low2@hp.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: aswin@hp.com
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jason Low <jason.low2@hp.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Link: http://lkml.kernel.org/r/1406752916-3341-5-git-send-email-davidlohr@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/mutex.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 8d5535c58cc2..e4c29418f407 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -52,7 +52,7 @@ struct mutex {
atomic_t count;
spinlock_t wait_lock;
struct list_head wait_list;
-#if defined(CONFIG_DEBUG_MUTEXES) || defined(CONFIG_SMP)
+#if defined(CONFIG_DEBUG_MUTEXES) || defined(CONFIG_MUTEX_SPIN_ON_OWNER)
struct task_struct *owner;
#endif
#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
--
cgit v1.2.1
From 214e0aed639ef40987bf6159fad303171a6de31e Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Wed, 30 Jul 2014 13:41:55 -0700
Subject: locking/Documentation: Move locking related docs into
Documentation/locking/
Specifically:
Documentation/locking/lockdep-design.txt
Documentation/locking/lockstat.txt
Documentation/locking/mutex-design.txt
Documentation/locking/rt-mutex-design.txt
Documentation/locking/rt-mutex.txt
Documentation/locking/spinlocks.txt
Documentation/locking/ww-mutex-design.txt
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: jason.low2@hp.com
Cc: aswin@hp.com
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Mason <clm@fb.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jason Low <jason.low2@hp.com>
Cc: Josef Bacik <jbacik@fusionio.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Lubomir Rintel <lkundrak@v3.sk>
Cc: Masanari Iida <standby24x7@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: fengguang.wu@intel.com
Link: http://lkml.kernel.org/r/1406752916-3341-6-git-send-email-davidlohr@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/lockdep.h | 2 +-
include/linux/mutex.h | 2 +-
include/linux/rwsem.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 008388f920d7..f388481201cd 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -4,7 +4,7 @@
* Copyright (C) 2006,2007 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
* Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
*
- * see Documentation/lockdep-design.txt for more details.
+ * see Documentation/locking/lockdep-design.txt for more details.
*/
#ifndef __LINUX_LOCKDEP_H
#define __LINUX_LOCKDEP_H
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index e4c29418f407..cc31498fc526 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -133,7 +133,7 @@ static inline int mutex_is_locked(struct mutex *lock)
/*
* See kernel/locking/mutex.c for detailed documentation of these APIs.
- * Also see Documentation/mutex-design.txt.
+ * Also see Documentation/locking/mutex-design.txt.
*/
#ifdef CONFIG_DEBUG_LOCK_ALLOC
extern void mutex_lock_nested(struct mutex *lock, unsigned int subclass);
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 035d3c57fc8a..8f498cdde280 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -149,7 +149,7 @@ extern void downgrade_write(struct rw_semaphore *sem);
* static then another method for expressing nested locking is
* the explicit definition of lock class keys and the use of
* lockdep_set_class() at lock initialization time.
- * See Documentation/lockdep-design.txt for more details.)
+ * See Documentation/locking/lockdep-design.txt for more details.)
*/
extern void down_read_nested(struct rw_semaphore *sem, int subclass);
extern void down_write_nested(struct rw_semaphore *sem, int subclass);
--
cgit v1.2.1
From 4999201a59ef555f9105d2bb2459ed895627f7aa Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 8 Aug 2014 12:35:36 +0200
Subject: locking/spinlocks: Always evaluate the second argument of
spin_lock_nested()
Evaluating a macro argument only if certain configuration options
have been selected is confusing and error-prone. Hence always
evaluate the second argument of spin_lock_nested().
An intentional side effect of this patch is that it avoids that
the following warning is reported for netif_addr_lock_nested()
when building with CONFIG_DEBUG_LOCK_ALLOC=n and with W=1:
include/linux/netdevice.h: In function 'netif_addr_lock_nested':
include/linux/netdevice.h:2865:6: warning: variable 'subclass' set but not used [-Wunused-but-set-variable]
int subclass = SINGLE_DEPTH_NESTING;
^
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: David Rientjes <rientjes@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/53E4A7F8.1040700@acm.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/spinlock.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 3f2867ff0ced..262ba4ef9a8e 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -197,7 +197,13 @@ static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
_raw_spin_lock_nest_lock(lock, &(nest_lock)->dep_map); \
} while (0)
#else
-# define raw_spin_lock_nested(lock, subclass) _raw_spin_lock(lock)
+/*
+ * Always evaluate the 'subclass' argument to avoid that the compiler
+ * warns about set-but-not-used variables when building with
+ * CONFIG_DEBUG_LOCK_ALLOC=n and with W=1.
+ */
+# define raw_spin_lock_nested(lock, subclass) \
+ _raw_spin_lock(((void)(subclass), (lock)))
# define raw_spin_lock_nest_lock(lock, nest_lock) _raw_spin_lock(lock)
#endif
--
cgit v1.2.1
From f0bab73cb539fb803c4d419951e8d28aa4964f8f Mon Sep 17 00:00:00 2001
From: Waiman Long <Waiman.Long@hp.com>
Date: Wed, 6 Aug 2014 13:22:01 -0400
Subject: locking/lockdep: Restrict the use of recursive read_lock() with
qrwlock
Unlike the original unfair rwlock implementation, queued rwlock
will grant lock according to the chronological sequence of the lock
requests except when the lock requester is in the interrupt context.
Consequently, recursive read_lock calls will now hang the process if
there is a write_lock call somewhere in between the read_lock calls.
This patch updates the lockdep implementation to look for recursive
read_lock calls. A new read state (3) is used to mark those read_lock
call that cannot be recursively called except in the interrupt
context. The new read state does exhaust the 2 bits available in
held_lock:read bit field. The addition of any new read state in the
future may require a redesign of how all those bits are squeezed
together in the held_lock structure.
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1407345722-61615-2-git-send-email-Waiman.Long@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/lockdep.h | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index f388481201cd..b5a84b62fb84 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -478,16 +478,24 @@ static inline void print_irqtrace_events(struct task_struct *curr)
* on the per lock-class debug mode:
*/
+/*
+ * Read states in the 2-bit held_lock:read field:
+ * 0: Exclusive lock
+ * 1: Shareable lock, cannot be recursively called
+ * 2: Shareable lock, can be recursively called
+ * 3: Shareable lock, cannot be recursively called except in interrupt context
+ */
#define lock_acquire_exclusive(l, s, t, n, i) lock_acquire(l, s, t, 0, 1, n, i)
#define lock_acquire_shared(l, s, t, n, i) lock_acquire(l, s, t, 1, 1, n, i)
#define lock_acquire_shared_recursive(l, s, t, n, i) lock_acquire(l, s, t, 2, 1, n, i)
+#define lock_acquire_shared_irecursive(l, s, t, n, i) lock_acquire(l, s, t, 3, 1, n, i)
#define spin_acquire(l, s, t, i) lock_acquire_exclusive(l, s, t, NULL, i)
#define spin_acquire_nest(l, s, t, n, i) lock_acquire_exclusive(l, s, t, n, i)
#define spin_release(l, n, i) lock_release(l, n, i)
#define rwlock_acquire(l, s, t, i) lock_acquire_exclusive(l, s, t, NULL, i)
-#define rwlock_acquire_read(l, s, t, i) lock_acquire_shared_recursive(l, s, t, NULL, i)
+#define rwlock_acquire_read(l, s, t, i) lock_acquire_shared_irecursive(l, s, t, NULL, i)
#define rwlock_release(l, n, i) lock_release(l, n, i)
#define seqcount_acquire(l, s, t, i) lock_acquire_exclusive(l, s, t, NULL, i)
--
cgit v1.2.1
From 84c61d92bb6e9048eecc0738a83f1bf66f053026 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 1 Aug 2014 11:13:30 +0300
Subject: Bluetooth: Add convenience function to check for pending power off
There are several situations where we're interested in knowing whether
we're currently in the process of powering off an adapter. This patch
adds a convenience function for the purpose and makes it public since
we'll soon need to access it from hci_event.c as well.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b5d5af3aa469..8394abc4fd87 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1351,6 +1351,7 @@ void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
u8 addr_type, s8 rssi, u8 *name, u8 name_len);
void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
+bool mgmt_powering_down(struct hci_dev *hdev);
void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk);
void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
--
cgit v1.2.1
From 432df05eb1e57adfc46df08abbedca6c3b8862f7 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 1 Aug 2014 11:13:31 +0300
Subject: Bluetooth: Create unified helper function for updating page scan
Similar to our hci_update_background_scan() function we can simplify a
lot of code by creating a unified helper function for doing page scan
updates. This patch adds such a function to hci_core.c and updates all
the relevant places to use it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 8394abc4fd87..cc2eb7730fbc 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -968,6 +968,9 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
#define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
+#define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \
+ !test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+
/* ----- HCI protocols ----- */
#define HCI_PROTO_DEFER 0x01
@@ -1256,6 +1259,8 @@ bool hci_req_pending(struct hci_dev *hdev);
void hci_req_add_le_scan_disable(struct hci_request *req);
void hci_req_add_le_passive_scan(struct hci_request *req);
+void hci_update_page_scan(struct hci_dev *hdev, struct hci_request *req);
+
struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u32 timeout);
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
--
cgit v1.2.1
From d52deb17489b8155e031fb1a9f116c602d719e11 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 7 Aug 2014 22:56:44 +0300
Subject: Bluetooth: Resume BT_CONNECTED state after LE security elevation
The LE ATT socket uses a special trick where it temporarily sets
BT_CONFIG state for the duration of a security level elevation. In order
to not require special hacks for going back to BT_CONNECTED state in the
l2cap_core.c code the most reasonable place to resume the state is the
resume callback. This patch adds a new flag to track the pending
security level change and ensures that the state is set back to
BT_CONNECTED in the resume callback in case the flag is set.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 8df15ad0d43f..4a51e7596608 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -708,6 +708,7 @@ enum {
FLAG_EFS_ENABLE,
FLAG_DEFER_SETUP,
FLAG_LE_CONN_REQ_SENT,
+ FLAG_PENDING_SECURITY,
};
enum {
--
cgit v1.2.1
From f193844c51e88ea3d2137bb0c1d38d27d37691a2 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 8 Aug 2014 09:37:15 +0300
Subject: Bluetooth: Add more L2CAP convenience callbacks
In preparation for converting SMP to use l2cap_chan it's useful to add a
few more callback helpers so that smp.c won't need to define all of its
own.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 4a51e7596608..a72965f6bc2f 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -838,18 +838,43 @@ static inline struct l2cap_chan *l2cap_chan_no_new_connection(struct l2cap_chan
return NULL;
}
+static inline int l2cap_chan_no_recv(struct l2cap_chan *chan, struct sk_buff *skb)
+{
+ return -ENOSYS;
+}
+
+static inline struct sk_buff *l2cap_chan_no_alloc_skb(struct l2cap_chan *chan,
+ unsigned long hdr_len,
+ unsigned long len, int nb)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
static inline void l2cap_chan_no_teardown(struct l2cap_chan *chan, int err)
{
}
+static inline void l2cap_chan_no_close(struct l2cap_chan *chan)
+{
+}
+
static inline void l2cap_chan_no_ready(struct l2cap_chan *chan)
{
}
+static inline void l2cap_chan_no_state_change(struct l2cap_chan *chan,
+ int state, int err)
+{
+}
+
static inline void l2cap_chan_no_defer(struct l2cap_chan *chan)
{
}
+static inline void l2cap_chan_no_suspend(struct l2cap_chan *chan)
+{
+}
+
static inline void l2cap_chan_no_resume(struct l2cap_chan *chan)
{
}
--
cgit v1.2.1
From 70db83c4bcdc1447bbcb318389561c90d7056b18 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 8 Aug 2014 09:37:16 +0300
Subject: Bluetooth: Add SMP L2CAP channel skeleton
This patch creates the initial SMP L2CAP channels and a skeleton for
their callbacks. There is one per-adapter channel created upon adapter
registration, and then one channel per-connection created through the
new_connection callback. The channels are registered with the reserved
CID 0x1f for now in order to not conflict with existing SMP
functionality. Once everything is in place the value can be changed to
what it should be, i.e. L2CAP_CID_SMP.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 +
include/net/bluetooth/l2cap.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index cc2eb7730fbc..2571fc1cb1c5 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -303,6 +303,7 @@ struct hci_dev {
__u32 req_result;
struct crypto_blkcipher *tfm_aes;
+ void *smp_data;
struct discovery_state discovery;
struct hci_conn_hash conn_hash;
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index a72965f6bc2f..1a037ba4b6f4 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -637,6 +637,7 @@ struct l2cap_conn {
struct delayed_work security_timer;
struct smp_chan *smp_chan;
+ struct l2cap_chan *smp;
struct list_head chan_l;
struct mutex chan_lock;
--
cgit v1.2.1
From defce9e83666658d4420d65e45ab1ad190992f72 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 8 Aug 2014 09:37:17 +0300
Subject: Bluetooth: Make AES crypto context private to SMP
Now that we have per-adapter SMP data thanks to the root SMP L2CAP
channel we can take advantage of it and attach the AES crypto context
(only used for SMP) to it. This means that the smp_irk_matches() and
smp_generate_rpa() function can be converted to internally handle the
AES context.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 2571fc1cb1c5..5f0b77b71b45 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -302,7 +302,6 @@ struct hci_dev {
__u32 req_status;
__u32 req_result;
- struct crypto_blkcipher *tfm_aes;
void *smp_data;
struct discovery_state discovery;
--
cgit v1.2.1
From 5d88cc73dded31a93fcc4821f33a8c3d755bf454 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 8 Aug 2014 09:37:18 +0300
Subject: Bluetooth: Convert SMP to use l2cap_chan infrastructure
Now that we have all the necessary pieces in place we can fully convert
SMP to use the L2CAP channel infrastructure. This patch adds the
necessary callbacks and removes the now unneeded conn->smp_chan pointer.
One notable behavioral change in this patch comes from the following
code snippet:
- case L2CAP_CID_SMP:
- if (smp_sig_channel(conn, skb))
- l2cap_conn_del(conn->hcon, EACCES);
This piece of code was essentially forcing a disconnection if garbage
SMP data was received. The l2cap_conn_del() function is private to
l2cap_conn.c so we don't have access to it anymore when using the L2CAP
channel callbacks. Therefore, the behavior of the new code is simply to
return errors in the recv() callback (which is simply the old
smp_sig_channel()), but no disconnection will occur.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 1a037ba4b6f4..bda6252e3722 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -636,7 +636,6 @@ struct l2cap_conn {
__u8 disc_reason;
struct delayed_work security_timer;
- struct smp_chan *smp_chan;
struct l2cap_chan *smp;
struct list_head chan_l;
--
cgit v1.2.1
From dec5b49235e2526d7aacf5b93ea48f5e30c2f7c3 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 11 Aug 2014 22:06:37 +0300
Subject: Bluetooth: Add public l2cap_conn_shutdown() API to request
disconnection
Since we no-longer do special handling of SMP within l2cap_core.c we
don't have any code for calling l2cap_conn_del() when smp.c doesn't like
the data it gets. At the same time we cannot simply export
l2cap_conn_del() since it will try to lock the channels it calls into
whereas we already hold the lock in the smp.c l2cap_chan callbacks (i.e.
it'd lead to a deadlock).
This patch adds a new l2cap_conn_shutdown() API which is very similar to
l2cap_conn_del() except that it defers the call to l2cap_conn_del()
through a workqueue, thereby making it safe to use it from an L2CAP
channel callback.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index bda6252e3722..40f34866b6da 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -625,6 +625,9 @@ struct l2cap_conn {
struct delayed_work info_timer;
+ int disconn_err;
+ struct work_struct disconn_work;
+
struct sk_buff *rx_skb;
__u32 rx_len;
__u8 tx_ident;
@@ -944,6 +947,7 @@ void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
u8 status);
void __l2cap_physical_cfm(struct l2cap_chan *chan, int result);
+void l2cap_conn_shutdown(struct l2cap_conn *conn, int err);
void l2cap_conn_get(struct l2cap_conn *conn);
void l2cap_conn_put(struct l2cap_conn *conn);
--
cgit v1.2.1
From 276d807317dead63ef2f13aa46e3c17d57ba0713 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 11 Aug 2014 22:06:41 +0300
Subject: Bluetooth: Remove unused l2cap_conn->security_timer
Now that there are no-longer any users for l2cap_conn->security_timer we
can go ahead and simply remove it. The patch makes initialization of the
conn->info_timer unconditional since it's better not to leave any
l2cap_conn data structures uninitialized no matter what the underlying
transport.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 40f34866b6da..cedda399f9c0 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -638,7 +638,6 @@ struct l2cap_conn {
__u8 disc_reason;
- struct delayed_work security_timer;
struct l2cap_chan *smp;
struct list_head chan_l;
--
cgit v1.2.1
From 560cb12a4080a48b84da8b96878cafbd193c4d64 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 23 Apr 2014 16:12:30 +0200
Subject: locking,arch: Rewrite generic atomic support
Rewrite generic atomic support to only require cmpxchg(), generate all
other primitives from that.
Furthermore reduce the endless repetition for all these primitives to
a few CPP macros. This way we get more for less lines.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20140508135852.940119622@infradead.org
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/asm-generic/atomic.h | 192 ++++++++++++++++++++---------------------
include/asm-generic/atomic64.h | 20 ++++-
2 files changed, 112 insertions(+), 100 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index 9c79e7603459..56d4d36e1531 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -18,14 +18,100 @@
#include <asm/cmpxchg.h>
#include <asm/barrier.h>
+/*
+ * atomic_$op() - $op integer to atomic variable
+ * @i: integer value to $op
+ * @v: pointer to the atomic variable
+ *
+ * Atomically $ops @i to @v. Does not strictly guarantee a memory-barrier, use
+ * smp_mb__{before,after}_atomic().
+ */
+
+/*
+ * atomic_$op_return() - $op interer to atomic variable and returns the result
+ * @i: integer value to $op
+ * @v: pointer to the atomic variable
+ *
+ * Atomically $ops @i to @v. Does imply a full memory barrier.
+ */
+
#ifdef CONFIG_SMP
-/* Force people to define core atomics */
-# if !defined(atomic_add_return) || !defined(atomic_sub_return) || \
- !defined(atomic_clear_mask) || !defined(atomic_set_mask)
-# error "SMP requires a little arch-specific magic"
-# endif
+
+/* we can build all atomic primitives from cmpxchg */
+
+#define ATOMIC_OP(op, c_op) \
+static inline void atomic_##op(int i, atomic_t *v) \
+{ \
+ int c, old; \
+ \
+ c = v->counter; \
+ while ((old = cmpxchg(&v->counter, c, c c_op i)) != c) \
+ c = old; \
+}
+
+#define ATOMIC_OP_RETURN(op, c_op) \
+static inline int atomic_##op##_return(int i, atomic_t *v) \
+{ \
+ int c, old; \
+ \
+ c = v->counter; \
+ while ((old = cmpxchg(&v->counter, c, c c_op i)) != c) \
+ c = old; \
+ \
+ return c c_op i; \
+}
+
+#else
+
+#include <linux/irqflags.h>
+
+#define ATOMIC_OP(op, c_op) \
+static inline void atomic_##op(int i, atomic_t *v) \
+{ \
+ unsigned long flags; \
+ \
+ raw_local_irq_save(flags); \
+ v->counter = v->counter c_op i; \
+ raw_local_irq_restore(flags); \
+}
+
+#define ATOMIC_OP_RETURN(op, c_op) \
+static inline int atomic_##op##_return(int i, atomic_t *v) \
+{ \
+ unsigned long flags; \
+ int ret; \
+ \
+ raw_local_irq_save(flags); \
+ ret = (v->counter = v->counter c_op i); \
+ raw_local_irq_restore(flags); \
+ \
+ return ret; \
+}
+
+#endif /* CONFIG_SMP */
+
+#ifndef atomic_add_return
+ATOMIC_OP_RETURN(add, +)
+#endif
+
+#ifndef atomic_sub_return
+ATOMIC_OP_RETURN(sub, -)
+#endif
+
+#ifndef atomic_clear_mask
+ATOMIC_OP(and, &)
+#define atomic_clear_mask(i, v) atomic_and(~(i), (v))
#endif
+#ifndef atomic_set_mask
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+ATOMIC_OP(or, |)
+#define atomic_set_mask(i, v) atomic_or((i), (v))
+#endif
+
+#undef ATOMIC_OP_RETURN
+#undef ATOMIC_OP
+
/*
* Atomic operations that C can't guarantee us. Useful for
* resource counting etc..
@@ -33,8 +119,6 @@
#define ATOMIC_INIT(i) { (i) }
-#ifdef __KERNEL__
-
/**
* atomic_read - read atomic variable
* @v: pointer of type atomic_t
@@ -56,52 +140,6 @@
#include <linux/irqflags.h>
-/**
- * atomic_add_return - add integer to atomic variable
- * @i: integer value to add
- * @v: pointer of type atomic_t
- *
- * Atomically adds @i to @v and returns the result
- */
-#ifndef atomic_add_return
-static inline int atomic_add_return(int i, atomic_t *v)
-{
- unsigned long flags;
- int temp;
-
- raw_local_irq_save(flags); /* Don't trace it in an irqsoff handler */
- temp = v->counter;
- temp += i;
- v->counter = temp;
- raw_local_irq_restore(flags);
-
- return temp;
-}
-#endif
-
-/**
- * atomic_sub_return - subtract integer from atomic variable
- * @i: integer value to subtract
- * @v: pointer of type atomic_t
- *
- * Atomically subtracts @i from @v and returns the result
- */
-#ifndef atomic_sub_return
-static inline int atomic_sub_return(int i, atomic_t *v)
-{
- unsigned long flags;
- int temp;
-
- raw_local_irq_save(flags); /* Don't trace it in an irqsoff handler */
- temp = v->counter;
- temp -= i;
- v->counter = temp;
- raw_local_irq_restore(flags);
-
- return temp;
-}
-#endif
-
static inline int atomic_add_negative(int i, atomic_t *v)
{
return atomic_add_return(i, v) < 0;
@@ -139,49 +177,11 @@ static inline void atomic_dec(atomic_t *v)
static inline int __atomic_add_unless(atomic_t *v, int a, int u)
{
- int c, old;
- c = atomic_read(v);
- while (c != u && (old = atomic_cmpxchg(v, c, c + a)) != c)
- c = old;
- return c;
-}
-
-/**
- * atomic_clear_mask - Atomically clear bits in atomic variable
- * @mask: Mask of the bits to be cleared
- * @v: pointer of type atomic_t
- *
- * Atomically clears the bits set in @mask from @v
- */
-#ifndef atomic_clear_mask
-static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
-{
- unsigned long flags;
-
- mask = ~mask;
- raw_local_irq_save(flags); /* Don't trace it in a irqsoff handler */
- v->counter &= mask;
- raw_local_irq_restore(flags);
+ int c, old;
+ c = atomic_read(v);
+ while (c != u && (old = atomic_cmpxchg(v, c, c + a)) != c)
+ c = old;
+ return c;
}
-#endif
-
-/**
- * atomic_set_mask - Atomically set bits in atomic variable
- * @mask: Mask of the bits to be set
- * @v: pointer of type atomic_t
- *
- * Atomically sets the bits set in @mask in @v
- */
-#ifndef atomic_set_mask
-static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
-
- raw_local_irq_save(flags); /* Don't trace it in a irqsoff handler */
- v->counter |= mask;
- raw_local_irq_restore(flags);
-}
-#endif
-#endif /* __KERNEL__ */
#endif /* __ASM_GENERIC_ATOMIC_H */
diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
index b18ce4f9ee3d..30ad9c86cebb 100644
--- a/include/asm-generic/atomic64.h
+++ b/include/asm-generic/atomic64.h
@@ -20,10 +20,22 @@ typedef struct {
extern long long atomic64_read(const atomic64_t *v);
extern void atomic64_set(atomic64_t *v, long long i);
-extern void atomic64_add(long long a, atomic64_t *v);
-extern long long atomic64_add_return(long long a, atomic64_t *v);
-extern void atomic64_sub(long long a, atomic64_t *v);
-extern long long atomic64_sub_return(long long a, atomic64_t *v);
+
+#define ATOMIC64_OP(op) \
+extern void atomic64_##op(long long a, atomic64_t *v);
+
+#define ATOMIC64_OP_RETURN(op) \
+extern long long atomic64_##op##_return(long long a, atomic64_t *v);
+
+#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op)
+
+ATOMIC64_OPS(add)
+ATOMIC64_OPS(sub)
+
+#undef ATOMIC64_OPS
+#undef ATOMIC64_OP_RETURN
+#undef ATOMIC64_OP
+
extern long long atomic64_dec_if_positive(atomic64_t *v);
extern long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n);
extern long long atomic64_xchg(atomic64_t *v, long long new);
--
cgit v1.2.1
From a74a8c846fb699f3277c0c21278bd4c414074b4a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 22 Jul 2014 14:50:47 +0200
Subject: mac80211: don't duplicate station QoS capability data
We currently track the QoS capability twice: for all peer stations
in the WLAN_STA_WME flag, and for any clients associated to an AP
interface separately for drivers in the sta->sta.wme field.
Remove the WLAN_STA_WME flag and track the capability only in the
driver-visible field, getting rid of the limitation that the field
is only valid in AP mode.
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index dae2e24616e1..1cd84444665c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1405,7 +1405,7 @@ struct ieee80211_sta_rates {
* @supp_rates: Bitmap of supported rates (per band)
* @ht_cap: HT capabilities of this STA; restricted to our own capabilities
* @vht_cap: VHT capabilities of this STA; restricted to our own capabilities
- * @wme: indicates whether the STA supports WME. Only valid during AP-mode.
+ * @wme: indicates whether the STA supports QoS/WME.
* @drv_priv: data area for driver use, will always be aligned to
* sizeof(void *), size is determined in hw information.
* @uapsd_queues: bitmap of queues configured for uapsd. Only valid
--
cgit v1.2.1
From 515d9b2c03943ca904cd135e1b1d9ddd168c1b27 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 12 Aug 2014 18:22:27 +0200
Subject: ata: remove deprecated struct ahci_platform_data
The last user of the deprecated struct ahci_platform_data has been
cleaned up recently (SPEAr1340 got a proper PHY driver).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/ahci_platform.h | 13 -------------
1 file changed, 13 deletions(-)
(limited to 'include')
diff --git a/include/linux/ahci_platform.h b/include/linux/ahci_platform.h
index 09a947e8bc87..642d6ae4030c 100644
--- a/include/linux/ahci_platform.h
+++ b/include/linux/ahci_platform.h
@@ -22,19 +22,6 @@ struct ata_port_info;
struct ahci_host_priv;
struct platform_device;
-/*
- * Note ahci_platform_data is deprecated, it is only kept around for use
- * by the old da850 and spear13xx ahci code.
- * New drivers should instead declare their own platform_driver struct, and
- * use ahci_platform* functions in their own probe, suspend and resume methods.
- */
-struct ahci_platform_data {
- int (*init)(struct device *dev, void __iomem *addr);
- void (*exit)(struct device *dev);
- int (*suspend)(struct device *dev);
- int (*resume)(struct device *dev);
-};
-
int ahci_platform_enable_clks(struct ahci_host_priv *hpriv);
void ahci_platform_disable_clks(struct ahci_host_priv *hpriv);
int ahci_platform_enable_resources(struct ahci_host_priv *hpriv);
--
cgit v1.2.1
From 005547e0828ce9064afebb1e6d56a18efd80e7a3 Mon Sep 17 00:00:00 2001
From: James Ban <james.ban.opensource@diasemi.com>
Date: Fri, 8 Aug 2014 14:27:04 +0900
Subject: regulator: da9211: support DA9213
This is a patch for supporting DA9213.
Signed-off-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/linux/regulator/da9211.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h
index 0981ce0e72cc..658c3c33f4c0 100644
--- a/include/linux/regulator/da9211.h
+++ b/include/linux/regulator/da9211.h
@@ -1,5 +1,5 @@
/*
- * da9211.h - Regulator device driver for DA9211
+ * da9211.h - Regulator device driver for DA9211/DA9213
* Copyright (C) 2014 Dialog Semiconductor Ltd.
*
* This library is free software; you can redistribute it and/or
@@ -20,6 +20,11 @@
#define DA9211_MAX_REGULATORS 2
+enum da9211_chip_id {
+ DA9211,
+ DA9213,
+};
+
struct da9211_pdata {
/*
* Number of buck
--
cgit v1.2.1
From 0e4f417857083f399769491f6e7773d111debd0f Mon Sep 17 00:00:00 2001
From: Amit Daniel Kachhap <amit.daniel@samsung.com>
Date: Tue, 15 Jul 2014 16:32:51 +0530
Subject: regulator: s2mpxxx: Move regulator min/step voltages in common place
This is a cleanup patch and moves min/step voltages in a common samsung
header file so that they can be used by other s2mpxxx PMIC drivers. Only
few required macros are added currently and others can be added if needed.
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/linux/mfd/samsung/core.h | 21 +++++++++++++++++++++
include/linux/mfd/samsung/s2mpa01.h | 12 ------------
include/linux/mfd/samsung/s2mps11.h | 9 ---------
include/linux/mfd/samsung/s2mps14.h | 10 ----------
4 files changed, 21 insertions(+), 31 deletions(-)
(limited to 'include')
diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index b5f73de81aad..1825edacbda7 100644
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -14,6 +14,27 @@
#ifndef __LINUX_MFD_SEC_CORE_H
#define __LINUX_MFD_SEC_CORE_H
+/* Macros to represent minimum voltages for LDO/BUCK */
+#define MIN_3000_MV 3000000
+#define MIN_2500_MV 2500000
+#define MIN_2000_MV 2000000
+#define MIN_1800_MV 1800000
+#define MIN_1500_MV 1500000
+#define MIN_1400_MV 1400000
+#define MIN_1000_MV 1000000
+
+#define MIN_900_MV 900000
+#define MIN_850_MV 850000
+#define MIN_800_MV 800000
+#define MIN_750_MV 750000
+#define MIN_600_MV 600000
+
+/* Macros to represent steps for LDO/BUCK */
+#define STEP_50_MV 50000
+#define STEP_25_MV 25000
+#define STEP_12_5_MV 12500
+#define STEP_6_25_MV 6250
+
enum sec_device_type {
S5M8751X,
S5M8763X,
diff --git a/include/linux/mfd/samsung/s2mpa01.h b/include/linux/mfd/samsung/s2mpa01.h
index fbc63bc0d6a2..2766108bca2f 100644
--- a/include/linux/mfd/samsung/s2mpa01.h
+++ b/include/linux/mfd/samsung/s2mpa01.h
@@ -155,18 +155,6 @@ enum s2mpa01_regulators {
S2MPA01_REGULATOR_MAX,
};
-#define S2MPA01_BUCK_MIN1 600000
-#define S2MPA01_BUCK_MIN2 800000
-#define S2MPA01_BUCK_MIN3 1000000
-#define S2MPA01_BUCK_MIN4 1500000
-#define S2MPA01_LDO_MIN 800000
-
-#define S2MPA01_BUCK_STEP1 6250
-#define S2MPA01_BUCK_STEP2 12500
-
-#define S2MPA01_LDO_STEP1 50000
-#define S2MPA01_LDO_STEP2 25000
-
#define S2MPA01_LDO_VSEL_MASK 0x3F
#define S2MPA01_BUCK_VSEL_MASK 0xFF
#define S2MPA01_ENABLE_MASK (0x03 << S2MPA01_ENABLE_SHIFT)
diff --git a/include/linux/mfd/samsung/s2mps11.h b/include/linux/mfd/samsung/s2mps11.h
index b3ddf98dec37..7981a9d77d3f 100644
--- a/include/linux/mfd/samsung/s2mps11.h
+++ b/include/linux/mfd/samsung/s2mps11.h
@@ -171,15 +171,6 @@ enum s2mps11_regulators {
S2MPS11_REGULATOR_MAX,
};
-#define S2MPS11_BUCK_MIN1 600000
-#define S2MPS11_BUCK_MIN2 750000
-#define S2MPS11_BUCK_MIN3 3000000
-#define S2MPS11_LDO_MIN 800000
-#define S2MPS11_BUCK_STEP1 6250
-#define S2MPS11_BUCK_STEP2 12500
-#define S2MPS11_BUCK_STEP3 25000
-#define S2MPS11_LDO_STEP1 50000
-#define S2MPS11_LDO_STEP2 25000
#define S2MPS11_LDO_VSEL_MASK 0x3F
#define S2MPS11_BUCK_VSEL_MASK 0xFF
#define S2MPS11_ENABLE_MASK (0x03 << S2MPS11_ENABLE_SHIFT)
diff --git a/include/linux/mfd/samsung/s2mps14.h b/include/linux/mfd/samsung/s2mps14.h
index 900cd7a04314..c92f4782afb5 100644
--- a/include/linux/mfd/samsung/s2mps14.h
+++ b/include/linux/mfd/samsung/s2mps14.h
@@ -123,10 +123,6 @@ enum s2mps14_regulators {
};
/* Regulator constraints for BUCKx */
-#define S2MPS14_BUCK1235_MIN_600MV 600000
-#define S2MPS14_BUCK4_MIN_1400MV 1400000
-#define S2MPS14_BUCK1235_STEP_6_25MV 6250
-#define S2MPS14_BUCK4_STEP_12_5MV 12500
#define S2MPS14_BUCK1235_START_SEL 0x20
#define S2MPS14_BUCK4_START_SEL 0x40
/*
@@ -136,12 +132,6 @@ enum s2mps14_regulators {
*/
#define S2MPS14_BUCK_RAMP_DELAY 12500
-/* Regulator constraints for different types of LDOx */
-#define S2MPS14_LDO_MIN_800MV 800000
-#define S2MPS14_LDO_MIN_1800MV 1800000
-#define S2MPS14_LDO_STEP_12_5MV 12500
-#define S2MPS14_LDO_STEP_25MV 25000
-
#define S2MPS14_LDO_VSEL_MASK 0x3F
#define S2MPS14_BUCK_VSEL_MASK 0xFF
#define S2MPS14_ENABLE_MASK (0x03 << S2MPS14_ENABLE_SHIFT)
--
cgit v1.2.1
From 272e2315fac3bfca0edfa3252b8a643c425602af Mon Sep 17 00:00:00 2001
From: Guodong Xu <guodong.xu@linaro.org>
Date: Wed, 13 Aug 2014 19:33:38 +0800
Subject: regulator: core: add const qualifier to ops in struct regulator_desc
struct regulator_ops *ops is a member in struct regulator_desc, which gets
its value from individual regulator driver upon regulator_register() and
is used by regulator core APIs. It's not allowed for regulator core to
modify any of these callbacks in *ops. Add 'const' qualifier to enforce that.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/linux/regulator/driver.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index bbe03a1924c0..4b628139a9cb 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -245,7 +245,7 @@ struct regulator_desc {
int id;
bool continuous_voltage_range;
unsigned n_voltages;
- struct regulator_ops *ops;
+ const struct regulator_ops *ops;
int irq;
enum regulator_type type;
struct module *owner;
--
cgit v1.2.1
From 871f565055ed232e5751da18a331b73e8254adaf Mon Sep 17 00:00:00 2001
From: Guodong Xu <guodong.xu@linaro.org>
Date: Wed, 13 Aug 2014 19:33:40 +0800
Subject: regulator: core: add guard delay between calling regulator_disable
and _enable
Some regulator require a minimum delay between its disable and next enable.
This is to avoid damages when out-of-range frequent disable/enable of a
single regulator can bring to the regulator chip.
Add @off_on_delay to struct regulator_desc. Device drivers' can use this field
to set this guard time.
Add @last_off_jiffy to struct regulator_dev. When @off_on_delay is set by
driver, regulator core can store its last off (disable) time into this field.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/linux/regulator/driver.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 4b628139a9cb..efe058f8f746 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -238,6 +238,7 @@ enum regulator_type {
* @bypass_val_off: Disabling value for control when using regmap set_bypass
*
* @enable_time: Time taken for initial enable of regulator (in uS).
+ * @off_on_delay: guard time (in uS), before re-enabling a regulator
*/
struct regulator_desc {
const char *name;
@@ -276,6 +277,8 @@ struct regulator_desc {
unsigned int bypass_val_off;
unsigned int enable_time;
+
+ unsigned int off_on_delay;
};
/**
@@ -348,6 +351,9 @@ struct regulator_dev {
struct regulator_enable_gpio *ena_pin;
unsigned int ena_gpio_state:1;
+
+ /* time when this regulator was disabled last time */
+ unsigned long last_off_jiffy;
};
struct regulator_dev *
--
cgit v1.2.1
From 8ad9f9efcc7656cafb56bbbcd545f817a742bf32 Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Mon, 16 Jun 2014 16:33:46 +0200
Subject: ASoC: Drop const from struct snd_soc_dai_link *of_node members
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Dropping the const qualifiers prevents "passing argument 1 of ‘of_node_put’
discards ‘const’ qualifier from pointer target type" type warnings when
compiling the code dropping reference to cpu_of_node, codec_of_node or
platform_of_node with with an of_node_put() function call.
This lets us to avoid casting to struct device_node * or caching variables
internally in drivers just to be able to properly drop a reference to the
OF node on clean up paths.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index be6ecae247b0..fd58371c63ff 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -897,7 +897,7 @@ struct snd_soc_dai_link {
* only for codec to codec links, or systems using device tree.
*/
const char *cpu_name;
- const struct device_node *cpu_of_node;
+ struct device_node *cpu_of_node;
/*
* You MAY specify the DAI name of the CPU DAI. If this information is
* omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
@@ -909,7 +909,7 @@ struct snd_soc_dai_link {
* DT/OF node, but not both.
*/
const char *codec_name;
- const struct device_node *codec_of_node;
+ struct device_node *codec_of_node;
/* You MUST specify the DAI name within the codec */
const char *codec_dai_name;
@@ -922,7 +922,7 @@ struct snd_soc_dai_link {
* do not need a platform.
*/
const char *platform_name;
- const struct device_node *platform_of_node;
+ struct device_node *platform_of_node;
int be_id; /* optional ID for machine driver BE identification */
const struct snd_soc_pcm_stream *params;
--
cgit v1.2.1
From eef5bb2445ca49911c93c08ed0fb2ea7363ea945 Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Mon, 4 Aug 2014 15:11:16 -0500
Subject: ASoC: cs35l32: Add support for CS35L32 Boosted Amplifier
This patch adds support for the Cirrus Logic CS35L32 Boosted Amplifier
I2S output provides monitor data to the SOC/CODEC/DSP for speaker protection/enhancement algorithms
Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/dt-bindings/sound/cs35l32.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 include/dt-bindings/sound/cs35l32.h
(limited to 'include')
diff --git a/include/dt-bindings/sound/cs35l32.h b/include/dt-bindings/sound/cs35l32.h
new file mode 100644
index 000000000000..0c6d6a3c15a2
--- /dev/null
+++ b/include/dt-bindings/sound/cs35l32.h
@@ -0,0 +1,26 @@
+#ifndef __DT_CS35L32_H
+#define __DT_CS35L32_H
+
+#define CS35L32_BOOST_MGR_AUTO 0
+#define CS35L32_BOOST_MGR_AUTO_AUDIO 1
+#define CS35L32_BOOST_MGR_BYPASS 2
+#define CS35L32_BOOST_MGR_FIXED 3
+
+#define CS35L32_DATA_CFG_LR_VP 0
+#define CS35L32_DATA_CFG_LR_STAT 1
+#define CS35L32_DATA_CFG_LR 2
+#define CS35L32_DATA_CFG_LR_VPSTAT 3
+
+#define CS35L32_BATT_THRESH_3_1V 0
+#define CS35L32_BATT_THRESH_3_2V 1
+#define CS35L32_BATT_THRESH_3_3V 2
+#define CS35L32_BATT_THRESH_3_4V 3
+
+#define CS35L32_BATT_RECOV_3_1V 0
+#define CS35L32_BATT_RECOV_3_2V 1
+#define CS35L32_BATT_RECOV_3_3V 2
+#define CS35L32_BATT_RECOV_3_4V 3
+#define CS35L32_BATT_RECOV_3_5V 4
+#define CS35L32_BATT_RECOV_3_6V 5
+
+#endif /* __DT_CS35L32_H */
--
cgit v1.2.1
From 983c684466e02b21f83c025ea539deee6c0aeac0 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Sun, 3 Aug 2014 13:03:10 -0400
Subject: SUNRPC: get rid of the request wait queue
We're always _only_ waking up tasks from within the sp_threads list, so
we know that they are enqueued and alive. The rq_wait waitqueue is just
a distraction with extra atomic semantics.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index cf61ecd148e0..21678464883a 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -280,7 +280,6 @@ struct svc_rqst {
bool rq_splice_ok; /* turned off in gss privacy
* to prevent encrypting page
* cache pages */
- wait_queue_head_t rq_wait; /* synchronization */
struct task_struct *rq_task; /* service thread */
};
--
cgit v1.2.1
From 7d2691da901d71ff62ad974510ea7149b391bdfe Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:47 -0700
Subject: gpu: ipu-v3: Add ipu-cpmem unit
Move channel parameter memory setup functions and macros into a new
submodule ipu-cpmem. In the process, cleanup arguments to the functions
to take a channel pointer instead of a pointer into cpmem for that
channel. That allows the structure of the parameter memory to be
private to ipu-cpmem.c.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 188 +++++++++------------------------------------
1 file changed, 36 insertions(+), 152 deletions(-)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 3e43e22cdff9..ef64b66b18df 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -107,6 +107,42 @@ void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
int ipu_idmac_get_current_buffer(struct ipuv3_channel *channel);
void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num);
+/*
+ * IPU Channel Parameter Memory (cpmem) functions
+ */
+struct ipu_rgb {
+ struct fb_bitfield red;
+ struct fb_bitfield green;
+ struct fb_bitfield blue;
+ struct fb_bitfield transp;
+ int bits_per_pixel;
+};
+
+struct ipu_image {
+ struct v4l2_pix_format pix;
+ struct v4l2_rect rect;
+ dma_addr_t phys;
+};
+
+void ipu_cpmem_zero(struct ipuv3_channel *ch);
+void ipu_cpmem_set_resolution(struct ipuv3_channel *ch, int xres, int yres);
+void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride);
+void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch);
+void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf);
+void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride);
+void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize);
+int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
+ const struct ipu_rgb *rgb);
+int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width);
+void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format);
+void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch,
+ u32 pixel_format, int stride,
+ int u_offset, int v_offset);
+void ipu_cpmem_set_yuv_planar(struct ipuv3_channel *ch,
+ u32 pixel_format, int stride, int height);
+int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc);
+int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image);
+
/*
* IPU Display Controller (dc) functions
*/
@@ -180,161 +216,9 @@ int ipu_smfc_disable(struct ipu_soc *ipu);
int ipu_smfc_map_channel(struct ipu_soc *ipu, int channel, int csi_id, int mipi_id);
int ipu_smfc_set_burstsize(struct ipu_soc *ipu, int channel, int burstsize);
-#define IPU_CPMEM_WORD(word, ofs, size) ((((word) * 160 + (ofs)) << 8) | (size))
-
-#define IPU_FIELD_UBO IPU_CPMEM_WORD(0, 46, 22)
-#define IPU_FIELD_VBO IPU_CPMEM_WORD(0, 68, 22)
-#define IPU_FIELD_IOX IPU_CPMEM_WORD(0, 90, 4)
-#define IPU_FIELD_RDRW IPU_CPMEM_WORD(0, 94, 1)
-#define IPU_FIELD_SO IPU_CPMEM_WORD(0, 113, 1)
-#define IPU_FIELD_SLY IPU_CPMEM_WORD(1, 102, 14)
-#define IPU_FIELD_SLUV IPU_CPMEM_WORD(1, 128, 14)
-
-#define IPU_FIELD_XV IPU_CPMEM_WORD(0, 0, 10)
-#define IPU_FIELD_YV IPU_CPMEM_WORD(0, 10, 9)
-#define IPU_FIELD_XB IPU_CPMEM_WORD(0, 19, 13)
-#define IPU_FIELD_YB IPU_CPMEM_WORD(0, 32, 12)
-#define IPU_FIELD_NSB_B IPU_CPMEM_WORD(0, 44, 1)
-#define IPU_FIELD_CF IPU_CPMEM_WORD(0, 45, 1)
-#define IPU_FIELD_SX IPU_CPMEM_WORD(0, 46, 12)
-#define IPU_FIELD_SY IPU_CPMEM_WORD(0, 58, 11)
-#define IPU_FIELD_NS IPU_CPMEM_WORD(0, 69, 10)
-#define IPU_FIELD_SDX IPU_CPMEM_WORD(0, 79, 7)
-#define IPU_FIELD_SM IPU_CPMEM_WORD(0, 86, 10)
-#define IPU_FIELD_SCC IPU_CPMEM_WORD(0, 96, 1)
-#define IPU_FIELD_SCE IPU_CPMEM_WORD(0, 97, 1)
-#define IPU_FIELD_SDY IPU_CPMEM_WORD(0, 98, 7)
-#define IPU_FIELD_SDRX IPU_CPMEM_WORD(0, 105, 1)
-#define IPU_FIELD_SDRY IPU_CPMEM_WORD(0, 106, 1)
-#define IPU_FIELD_BPP IPU_CPMEM_WORD(0, 107, 3)
-#define IPU_FIELD_DEC_SEL IPU_CPMEM_WORD(0, 110, 2)
-#define IPU_FIELD_DIM IPU_CPMEM_WORD(0, 112, 1)
-#define IPU_FIELD_BNDM IPU_CPMEM_WORD(0, 114, 3)
-#define IPU_FIELD_BM IPU_CPMEM_WORD(0, 117, 2)
-#define IPU_FIELD_ROT IPU_CPMEM_WORD(0, 119, 1)
-#define IPU_FIELD_HF IPU_CPMEM_WORD(0, 120, 1)
-#define IPU_FIELD_VF IPU_CPMEM_WORD(0, 121, 1)
-#define IPU_FIELD_THE IPU_CPMEM_WORD(0, 122, 1)
-#define IPU_FIELD_CAP IPU_CPMEM_WORD(0, 123, 1)
-#define IPU_FIELD_CAE IPU_CPMEM_WORD(0, 124, 1)
-#define IPU_FIELD_FW IPU_CPMEM_WORD(0, 125, 13)
-#define IPU_FIELD_FH IPU_CPMEM_WORD(0, 138, 12)
-#define IPU_FIELD_EBA0 IPU_CPMEM_WORD(1, 0, 29)
-#define IPU_FIELD_EBA1 IPU_CPMEM_WORD(1, 29, 29)
-#define IPU_FIELD_ILO IPU_CPMEM_WORD(1, 58, 20)
-#define IPU_FIELD_NPB IPU_CPMEM_WORD(1, 78, 7)
-#define IPU_FIELD_PFS IPU_CPMEM_WORD(1, 85, 4)
-#define IPU_FIELD_ALU IPU_CPMEM_WORD(1, 89, 1)
-#define IPU_FIELD_ALBM IPU_CPMEM_WORD(1, 90, 3)
-#define IPU_FIELD_ID IPU_CPMEM_WORD(1, 93, 2)
-#define IPU_FIELD_TH IPU_CPMEM_WORD(1, 95, 7)
-#define IPU_FIELD_SL IPU_CPMEM_WORD(1, 102, 14)
-#define IPU_FIELD_WID0 IPU_CPMEM_WORD(1, 116, 3)
-#define IPU_FIELD_WID1 IPU_CPMEM_WORD(1, 119, 3)
-#define IPU_FIELD_WID2 IPU_CPMEM_WORD(1, 122, 3)
-#define IPU_FIELD_WID3 IPU_CPMEM_WORD(1, 125, 3)
-#define IPU_FIELD_OFS0 IPU_CPMEM_WORD(1, 128, 5)
-#define IPU_FIELD_OFS1 IPU_CPMEM_WORD(1, 133, 5)
-#define IPU_FIELD_OFS2 IPU_CPMEM_WORD(1, 138, 5)
-#define IPU_FIELD_OFS3 IPU_CPMEM_WORD(1, 143, 5)
-#define IPU_FIELD_SXYS IPU_CPMEM_WORD(1, 148, 1)
-#define IPU_FIELD_CRE IPU_CPMEM_WORD(1, 149, 1)
-#define IPU_FIELD_DEC_SEL2 IPU_CPMEM_WORD(1, 150, 1)
-
-struct ipu_cpmem_word {
- u32 data[5];
- u32 res[3];
-};
-
-struct ipu_ch_param {
- struct ipu_cpmem_word word[2];
-};
-
-void ipu_ch_param_write_field(struct ipu_ch_param __iomem *base, u32 wbs, u32 v);
-u32 ipu_ch_param_read_field(struct ipu_ch_param __iomem *base, u32 wbs);
-struct ipu_ch_param __iomem *ipu_get_cpmem(struct ipuv3_channel *channel);
-void ipu_ch_param_dump(struct ipu_ch_param __iomem *p);
-
-static inline void ipu_ch_param_zero(struct ipu_ch_param __iomem *p)
-{
- int i;
- void __iomem *base = p;
-
- for (i = 0; i < sizeof(*p) / sizeof(u32); i++)
- writel(0, base + i * sizeof(u32));
-}
-
-static inline void ipu_cpmem_set_buffer(struct ipu_ch_param __iomem *p,
- int bufnum, dma_addr_t buf)
-{
- if (bufnum)
- ipu_ch_param_write_field(p, IPU_FIELD_EBA1, buf >> 3);
- else
- ipu_ch_param_write_field(p, IPU_FIELD_EBA0, buf >> 3);
-}
-
-static inline void ipu_cpmem_set_resolution(struct ipu_ch_param __iomem *p,
- int xres, int yres)
-{
- ipu_ch_param_write_field(p, IPU_FIELD_FW, xres - 1);
- ipu_ch_param_write_field(p, IPU_FIELD_FH, yres - 1);
-}
-
-static inline void ipu_cpmem_set_stride(struct ipu_ch_param __iomem *p,
- int stride)
-{
- ipu_ch_param_write_field(p, IPU_FIELD_SLY, stride - 1);
-}
-
-void ipu_cpmem_set_high_priority(struct ipuv3_channel *channel);
-
-struct ipu_rgb {
- struct fb_bitfield red;
- struct fb_bitfield green;
- struct fb_bitfield blue;
- struct fb_bitfield transp;
- int bits_per_pixel;
-};
-
-struct ipu_image {
- struct v4l2_pix_format pix;
- struct v4l2_rect rect;
- dma_addr_t phys;
-};
-
-int ipu_cpmem_set_format_passthrough(struct ipu_ch_param __iomem *p,
- int width);
-
-int ipu_cpmem_set_format_rgb(struct ipu_ch_param __iomem *,
- const struct ipu_rgb *rgb);
-
-static inline void ipu_cpmem_interlaced_scan(struct ipu_ch_param *p,
- int stride)
-{
- ipu_ch_param_write_field(p, IPU_FIELD_SO, 1);
- ipu_ch_param_write_field(p, IPU_FIELD_ILO, stride / 8);
- ipu_ch_param_write_field(p, IPU_FIELD_SLY, (stride * 2) - 1);
-};
-
-void ipu_cpmem_set_yuv_planar(struct ipu_ch_param __iomem *p, u32 pixel_format,
- int stride, int height);
-void ipu_cpmem_set_yuv_interleaved(struct ipu_ch_param __iomem *p,
- u32 pixel_format);
-void ipu_cpmem_set_yuv_planar_full(struct ipu_ch_param __iomem *p,
- u32 pixel_format, int stride, int u_offset, int v_offset);
-int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat);
-int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
- struct ipu_image *image);
-
enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
-static inline void ipu_cpmem_set_burstsize(struct ipu_ch_param __iomem *p,
- int burstsize)
-{
- ipu_ch_param_write_field(p, IPU_FIELD_NPB, burstsize - 1);
-};
-
struct ipu_client_platformdata {
int csi;
int di;
--
cgit v1.2.1
From ba07975f0fe5bf95107d71d0df0405c16f5c3266 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:30 -0700
Subject: gpu: ipu-v3: Add functions to set CSI/IC source muxes
Adds two new functions, ipu_set_csi_src_mux() and ipu_set_ic_src_mux(),
that select the inputs to the CSI and IC respectively. Both muxes are
programmed in the IPU_CONF register.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index ef64b66b18df..f80fe13b0d4d 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -92,6 +92,12 @@ int ipu_idmac_channel_irq(struct ipu_soc *ipu, struct ipuv3_channel *channel,
#define IPU_IRQ_VSYNC_PRE_0 (448 + 14)
#define IPU_IRQ_VSYNC_PRE_1 (448 + 15)
+/*
+ * IPU Common functions
+ */
+void ipu_set_csi_src_mux(struct ipu_soc *ipu, int csi_id, bool mipi_csi2);
+void ipu_set_ic_src_mux(struct ipu_soc *ipu, int csi_id, bool vdi);
+
/*
* IPU Image DMA Controller (idmac) functions
*/
--
cgit v1.2.1
From 716845ebeb505353d900320b4a74e8330520410d Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Mon, 18 Aug 2014 10:34:08 +0800
Subject: regulator: core: Fix build error due to const qualifier for ops
Drop const qualifier for ops of struct regulator_desc.
Allow regulator drivers to update ops before registering regulator.
Fix below build error:
CC [M] drivers/regulator/mc13892-regulator.o
drivers/regulator/mc13892-regulator.c: In function 'mc13892_regulator_probe':
drivers/regulator/mc13892-regulator.c:586:3: error: assignment of member 'set_mode' in read-only object
drivers/regulator/mc13892-regulator.c:588:3: error: assignment of member 'get_mode' in read-only object
make[2]: *** [drivers/regulator/mc13892-regulator.o] Error 1
make[1]: *** [drivers/regulator] Error 2
make: *** [drivers] Error 2
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/linux/regulator/driver.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index efe058f8f746..3abda7554d82 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -246,7 +246,7 @@ struct regulator_desc {
int id;
bool continuous_voltage_range;
unsigned n_voltages;
- const struct regulator_ops *ops;
+ struct regulator_ops *ops;
int irq;
enum regulator_type type;
struct module *owner;
--
cgit v1.2.1
From 18c01ab30288d9d0a7d80b08b659531f37ed379d Mon Sep 17 00:00:00 2001
From: Rajesh Ghanekar <Rajesh_Ghanekar@symantec.com>
Date: Fri, 1 Aug 2014 22:17:30 -0400
Subject: nfsd: allow turning off nfsv3 readdir_plus
One of our customer's application only needs file names, not file
attributes. With directories having 10K+ inodes (assuming buffer cache
has directory blocks cached having file names, but inode cache is
limited and hence need eviction of older cached inodes), older inodes
are evicted periodically. So if they keep on doing readdir(2) from NSF
client on multiple directories, some directory's files are periodically
removed from inode cache and hence new readdir(2) on same directory
requires disk access to bring back inodes again to inode cache.
As READDIRPLUS request fetches attributes also, doing getattr on each
file on server, it causes unnecessary disk accesses. If READDIRPLUS on
NFS client is returned with -ENOTSUPP, NFS client uses READDIR request
which just gets the names of the files in a directory, not attributes,
hence avoiding disk accesses on server.
There's already a corresponding client-side mount option, but an export
option reduces the need for configuration across multiple clients.
This flag affects NFSv3 only. If it turns out it's needed for NFSv4 as
well then we may have to figure out how to extend the behavior to NFSv4,
but it's not currently obvious how to do that.
Signed-off-by: Rajesh Ghanekar <rajesh_ghanekar@symantec.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/uapi/linux/nfsd/export.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/nfsd/export.h b/include/uapi/linux/nfsd/export.h
index cf47c313794e..584b6ef3a5e8 100644
--- a/include/uapi/linux/nfsd/export.h
+++ b/include/uapi/linux/nfsd/export.h
@@ -28,7 +28,8 @@
#define NFSEXP_ALLSQUASH 0x0008
#define NFSEXP_ASYNC 0x0010
#define NFSEXP_GATHERED_WRITES 0x0020
-/* 40 80 100 currently unused */
+#define NFSEXP_NOREADDIRPLUS 0x0040
+/* 80 100 currently unused */
#define NFSEXP_NOHIDE 0x0200
#define NFSEXP_NOSUBTREECHECK 0x0400
#define NFSEXP_NOAUTHNLM 0x0800 /* Don't authenticate NLM requests - just trust */
@@ -47,7 +48,7 @@
*/
#define NFSEXP_V4ROOT 0x10000
/* All flags that we claim to support. (Note we don't support NOACL.) */
-#define NFSEXP_ALLFLAGS 0x17E3F
+#define NFSEXP_ALLFLAGS 0x1FE7F
/* The flags that may vary depending on security flavor: */
#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
--
cgit v1.2.1
From e5f81539f657af7e9f54ea37986fde8f92acef22 Mon Sep 17 00:00:00 2001
From: Feng Kan <fkan@apm.com>
Date: Wed, 30 Jul 2014 14:56:58 -0700
Subject: irqchip: gic: Replace hex numbers with defines.
This is to cleanup some hex numbers used in the code and replace
them with defines to make the code cleaner.
Signed-off-by: Feng Kan <fkan@apm.com>
Reviewed-by: Anup Patel <apatel@apm.com>
Link: https://lkml.kernel.org/r/1406757419-18729-2-git-send-email-fkan@apm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqchip/arm-gic.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 45e2d8c15bd2..5cb9d41af5be 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -21,7 +21,10 @@
#define GIC_CPU_ACTIVEPRIO 0xd0
#define GIC_CPU_IDENT 0xfc
+#define GICC_ENABLE 0x1
+#define GICC_INT_PRI_THRESHOLD 0xf0
#define GICC_IAR_INT_ID_MASK 0x3ff
+#define GICC_INT_SPURIOUS 1023
#define GIC_DIST_CTRL 0x000
#define GIC_DIST_CTR 0x004
@@ -39,6 +42,18 @@
#define GIC_DIST_SGI_PENDING_CLEAR 0xf10
#define GIC_DIST_SGI_PENDING_SET 0xf20
+#define GICD_ENABLE 0x1
+#define GICD_DISABLE 0x0
+#define GICD_INT_ACTLOW_LVLTRIG 0x0
+#define GICD_INT_EN_CLR_X32 0xffffffff
+#define GICD_INT_EN_SET_SGI 0x0000ffff
+#define GICD_INT_EN_CLR_PPI 0xffff0000
+#define GICD_INT_DEF_PRI 0xa0
+#define GICD_INT_DEF_PRI_X4 ((GICD_INT_DEF_PRI << 24) |\
+ (GICD_INT_DEF_PRI << 16) |\
+ (GICD_INT_DEF_PRI << 8) |\
+ GICD_INT_DEF_PRI)
+
#define GICH_HCR 0x0
#define GICH_VTR 0x4
#define GICH_VMCR 0x8
--
cgit v1.2.1
From 3228950621d92f0f212378f95a6998ef3a1be0bb Mon Sep 17 00:00:00 2001
From: Feng Kan <fkan@apm.com>
Date: Wed, 30 Jul 2014 14:56:59 -0700
Subject: irqchip: gic: Preserve gic V2 bypass bits in cpu ctrl register
This change is made to preserve the GIC v2 bypass bits in the
GIC_CPU_CTRL register (also known as the GICC_CTLR register in spec).
This code will preserve all bits configured by the bootloader regarding
v2 bypass group bits. In the X-Gene platform, the bypass functionality
is not used and bypass bits should not be changed by the kernel gic
code as it could lead to incorrect behavior.
Signed-off-by: Feng Kan <fkan@apm.com>
Reviewed-by: Vinayak Kale <vkale@apm.com>
Reviewed-by: Anup Patel <apatel@apm.com>
Link: https://lkml.kernel.org/r/1406757419-18729-3-git-send-email-fkan@apm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqchip/arm-gic.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 5cb9d41af5be..13eed92c7d24 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -25,6 +25,7 @@
#define GICC_INT_PRI_THRESHOLD 0xf0
#define GICC_IAR_INT_ID_MASK 0x3ff
#define GICC_INT_SPURIOUS 1023
+#define GICC_DIS_BYPASS_MASK 0x1e0
#define GIC_DIST_CTRL 0x000
#define GIC_DIST_CTR 0x004
--
cgit v1.2.1
From 81c7cfd1b22a0ee5e40efef72ec2cd17dbf12e6d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 19 Aug 2014 15:51:18 +0200
Subject: ASoC: Move debugfs registration to the component level
The debugfs registration is mostly identical between platforms and CODECs. This
patches consolidates the two implementations at the component level.
Unfortunately there are still a couple of CODEC specific debugfs files that are
related to legacy ASoC IO that need to be registered. For this a new callback is
added to the component struct that will be initialized when a CODEC is
registered and will be used to register the CODEC specific files. Once there are
no drivers left using legacy IO this can be removed again.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 20 +++++++++++++++-----
1 file changed, 15 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index be6ecae247b0..0ab8b1e4a5d2 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -728,9 +728,24 @@ struct snd_soc_component {
struct mutex io_mutex;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *debugfs_root;
+#endif
+
+ /*
+ * DO NOT use any of the fields below in drivers, they are temporary and
+ * are going to be removed again soon. If you use them in driver code the
+ * driver will be marked as BROKEN when these fields are removed.
+ */
+
/* Don't use these, use snd_soc_component_get_dapm() */
struct snd_soc_dapm_context dapm;
struct snd_soc_dapm_context *dapm_ptr;
+
+#ifdef CONFIG_DEBUG_FS
+ void (*init_debugfs)(struct snd_soc_component *component);
+ const char *debugfs_prefix;
+#endif
};
/* SoC Audio Codec device */
@@ -766,7 +781,6 @@ struct snd_soc_codec {
struct snd_soc_dapm_context dapm;
#ifdef CONFIG_DEBUG_FS
- struct dentry *debugfs_codec_root;
struct dentry *debugfs_reg;
#endif
};
@@ -879,10 +893,6 @@ struct snd_soc_platform {
struct list_head list;
struct snd_soc_component component;
-
-#ifdef CONFIG_DEBUG_FS
- struct dentry *debugfs_platform_root;
-#endif
};
struct snd_soc_dai_link {
--
cgit v1.2.1
From f1d45cc3ae96a6173129b2c164c216272faa5fc0 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 19 Aug 2014 15:51:19 +0200
Subject: ASoC: Consolidate platform and CODEC probe/remove
The platform and CODEC probe and remove code is now largely identical. This
patch consolidates it at the component level.
The resulting code is slightly larger due to all the boiler plate code setting
up the indirection for the table based control and DAPM registration. Once all
drivers have been update to no longer use the snd_soc_codec_driver and
snd_soc_platform_driver specific fields for this the indirection can be removed
again.
This patch contains two noteworthy hacks that are only meant to be temporary to
be able to update drivers and the core in separate incremental patches.
The first hack is related to that some DPCM platforms expect that the DAPM
widgets for the DAIs of a snd_soc_component are created in the DAPM context of
the snd_soc_platform that has the same parent device. For handling this the
steal_sibling_dai_widgets attribute is introduced. It gets set for
snd_soc_platforms that register DAPM elements. When creating the DAI widgets for
a component this flag is checked and if it is found on one of the siblings the
component will not create any DAI widgets in its own DAPM context. If the
attribute is set on a platform it will look for siblings components and create
DAI widgets for them in its own context. The fix for this will be to update
the offending drivers to only register a single component rather than two.
The second hack deals with the fact that the ASoC card suspend and resume code
still needs a list of CODECs that have been registered for the card. To handle
this the generic probe and remove path have a check to see if the component is
CODEC and if yes add/remove it to the card's CODEC list. While it is possible to
clean up the suspend/resume code to not need the CODEC list anymore this is a
bit of a chicken and egg problem since it will become easier to clean up the
suspend/resume code once there is a unified component layer.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 27 +++++++++++++++++----------
1 file changed, 17 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 0ab8b1e4a5d2..22543acfae4b 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -697,6 +697,10 @@ struct snd_soc_component_driver {
void (*seq_notifier)(struct snd_soc_component *, enum snd_soc_dapm_type,
int subseq);
int (*stream_event)(struct snd_soc_component *, int event);
+
+ /* probe ordering - for components with runtime dependencies */
+ int probe_order;
+ int remove_order;
};
struct snd_soc_component {
@@ -710,6 +714,7 @@ struct snd_soc_component {
unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
unsigned int registered_as_component:1;
+ unsigned int probed:1;
struct list_head list;
@@ -742,6 +747,18 @@ struct snd_soc_component {
struct snd_soc_dapm_context dapm;
struct snd_soc_dapm_context *dapm_ptr;
+ const struct snd_kcontrol_new *controls;
+ unsigned int num_controls;
+ const struct snd_soc_dapm_widget *dapm_widgets;
+ unsigned int num_dapm_widgets;
+ const struct snd_soc_dapm_route *dapm_routes;
+ unsigned int num_dapm_routes;
+ bool steal_sibling_dai_widgets;
+ struct snd_soc_codec *codec;
+
+ int (*probe)(struct snd_soc_component *);
+ void (*remove)(struct snd_soc_component *);
+
#ifdef CONFIG_DEBUG_FS
void (*init_debugfs)(struct snd_soc_component *component);
const char *debugfs_prefix;
@@ -761,7 +778,6 @@ struct snd_soc_codec {
struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
unsigned int cache_bypass:1; /* Suppress access to the cache */
unsigned int suspended:1; /* Codec is in suspend PM state */
- unsigned int probed:1; /* Codec has been probed */
unsigned int ac97_registered:1; /* Codec has been AC97 registered */
unsigned int ac97_created:1; /* Codec has been created by SoC */
unsigned int cache_init:1; /* codec cache has been initialized */
@@ -827,10 +843,6 @@ struct snd_soc_codec_driver {
enum snd_soc_dapm_type, int);
bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */
-
- /* probe ordering - for components with runtime dependencies */
- int probe_order;
- int remove_order;
};
/* SoC platform interface */
@@ -867,10 +879,6 @@ struct snd_soc_platform_driver {
/* platform stream compress ops */
const struct snd_compr_ops *compr_ops;
- /* probe ordering - for components with runtime dependencies */
- int probe_order;
- int remove_order;
-
/* platform IO - used for platform DAPM */
unsigned int (*read)(struct snd_soc_platform *, unsigned int);
int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
@@ -888,7 +896,6 @@ struct snd_soc_platform {
const struct snd_soc_platform_driver *driver;
unsigned int suspended:1; /* platform is suspended */
- unsigned int probed:1;
struct list_head list;
--
cgit v1.2.1
From 61aca5646b736a794d40de29a197144db3f0c5ba Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 19 Aug 2014 15:51:21 +0200
Subject: ASoC: Add component level probe/remove support
Now that we have a unified probe and remove path make sure to call them for all
components. soc_{probe,remove}_component are responsible for setting up the DAPM
context for the component, initialize the component prefix, manage the debugfs
entries as well as do the registration of table based controls and DAPM
elements. They also call the component drivers probe and remove callbacks. This
patch makes these things available for generic snd_soc_component drivers rather
than only having them for snd_soc_codec and snd_soc_platform drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 22543acfae4b..4a223a895f00 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -690,6 +690,17 @@ struct snd_soc_compr_ops {
struct snd_soc_component_driver {
const char *name;
+ /* Default control and setup, added after probe() is run */
+ const struct snd_kcontrol_new *controls;
+ unsigned int num_controls;
+ const struct snd_soc_dapm_widget *dapm_widgets;
+ unsigned int num_dapm_widgets;
+ const struct snd_soc_dapm_route *dapm_routes;
+ unsigned int num_dapm_routes;
+
+ int (*probe)(struct snd_soc_component *);
+ void (*remove)(struct snd_soc_component *);
+
/* DT */
int (*of_xlate_dai_name)(struct snd_soc_component *component,
struct of_phandle_args *args,
--
cgit v1.2.1
From 65d9361f0cb50a20641802ee3075145d72e4409c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 19 Aug 2014 15:51:22 +0200
Subject: ASoC: Move AUX dev support to the component level
This patch makes it possible to register arbitrary components as a AUX dev
for a card. This was previously only possible for CODEC components. With
componentization having made it possible for components to have DAPM contexts
and controls there is no reason why AUX devs should be artificially limited to
snd_soc_codec devices.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 4a223a895f00..fbc2ad840244 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1140,6 +1140,7 @@ struct snd_soc_pcm_runtime {
struct snd_soc_platform *platform;
struct snd_soc_dai *codec_dai;
struct snd_soc_dai *cpu_dai;
+ struct snd_soc_component *component; /* Only valid for AUX dev rtds */
struct snd_soc_dai **codec_dais;
unsigned int num_codecs;
--
cgit v1.2.1
From 57bf772687700e206c760ba2e4097f78bde97887 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 19 Aug 2014 15:51:23 +0200
Subject: ASoC: Pass component instead of DAPM context to AUX dev init callback
Given that the component is the containing structure it makes more sense to pass
the component rather than the DAPM context to the AUX dev init callback.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index fbc2ad840244..3a0031e1f9b4 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1022,7 +1022,7 @@ struct snd_soc_aux_dev {
const struct device_node *codec_of_node;
/* codec/machine specific init - e.g. add machine controls */
- int (*init)(struct snd_soc_dapm_context *dapm);
+ int (*init)(struct snd_soc_component *component);
};
/* SoC card */
--
cgit v1.2.1
From 886f5692253de1a9509f5cb708432b2157afb57c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 19 Aug 2014 15:51:28 +0200
Subject: ASoC: Automatically initialize regmap for all components
So far regmap is only automatically initialized for CODECs. Now that we have the
infrastructure in place to let components have DAPM widgets and controls that
want to use the generic regmap based IO also make sure to automatically
initialize regmap for all components.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 3a0031e1f9b4..8ebee30311e3 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1289,9 +1289,6 @@ void snd_soc_component_async_complete(struct snd_soc_component *component);
int snd_soc_component_test_bits(struct snd_soc_component *component,
unsigned int reg, unsigned int mask, unsigned int value);
-int snd_soc_component_init_io(struct snd_soc_component *component,
- struct regmap *regmap);
-
/* device driver data */
static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
--
cgit v1.2.1
From 75af7c081982d76cef0daf26e96b5d1e8cb9d631 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 19 Aug 2014 15:51:29 +0200
Subject: ASoC: Remove support for legacy snd_soc_platform IO
There were never any actual users of this in upstream and by we have with
regmap a replacement in place, which should be used by new drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 8ebee30311e3..edbb0d72ab38 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -890,9 +890,6 @@ struct snd_soc_platform_driver {
/* platform stream compress ops */
const struct snd_compr_ops *compr_ops;
- /* platform IO - used for platform DAPM */
- unsigned int (*read)(struct snd_soc_platform *, unsigned int);
- int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
int (*bespoke_trigger)(struct snd_pcm_substream *, int);
};
--
cgit v1.2.1
From 7b7d8982f0169d5ac67c6c2877449fb7f6968cac Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 27 Jul 2014 14:31:53 -0700
Subject: mtd: fix linux/mtd/nand.h kernel-doc warning
Fix kernel-doc warning in <linux/mtd/nand.h>:
Warning(..//include/linux/mtd/nand.h:795): No description found for parameter 'ecc'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/nand.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 3083c53e0270..b7c11991cb09 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -766,6 +766,7 @@ struct nand_chip {
* @options: stores various chip bit options
* @id_len: The valid length of the @id.
* @oobsize: OOB size
+ * @ecc: ECC correctability and step information from the datasheet.
* @ecc.strength_ds: The ECC correctability from the datasheet, same as the
* @ecc_strength_ds in nand_chip{}.
* @ecc.step_ds: The ECC step required by the @ecc.strength_ds, same as the
--
cgit v1.2.1
From 31f754628cbb12c983600f22d9f0fed50dfe2134 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Mon, 21 Jul 2014 19:07:22 -0700
Subject: mtd: use __packed shorthand
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/cfi.h | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 37ef6b194089..299d7d31fe53 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -153,7 +153,7 @@ struct cfi_ident {
uint16_t MaxBufWriteSize;
uint8_t NumEraseRegions;
uint32_t EraseRegionInfo[0]; /* Not host ordered */
-} __attribute__((packed));
+} __packed;
/* Extended Query Structure for both PRI and ALT */
@@ -161,7 +161,7 @@ struct cfi_extquery {
uint8_t pri[3];
uint8_t MajorVersion;
uint8_t MinorVersion;
-} __attribute__((packed));
+} __packed;
/* Vendor-Specific PRI for Intel/Sharp Extended Command Set (0x0001) */
@@ -180,7 +180,7 @@ struct cfi_pri_intelext {
uint8_t FactProtRegSize;
uint8_t UserProtRegSize;
uint8_t extra[0];
-} __attribute__((packed));
+} __packed;
struct cfi_intelext_otpinfo {
uint32_t ProtRegAddr;
@@ -188,7 +188,7 @@ struct cfi_intelext_otpinfo {
uint8_t FactProtRegSize;
uint16_t UserGroups;
uint8_t UserProtRegSize;
-} __attribute__((packed));
+} __packed;
struct cfi_intelext_blockinfo {
uint16_t NumIdentBlocks;
@@ -196,7 +196,7 @@ struct cfi_intelext_blockinfo {
uint16_t MinBlockEraseCycles;
uint8_t BitsPerCell;
uint8_t BlockCap;
-} __attribute__((packed));
+} __packed;
struct cfi_intelext_regioninfo {
uint16_t NumIdentPartitions;
@@ -205,7 +205,7 @@ struct cfi_intelext_regioninfo {
uint8_t NumOpAllowedSimEraMode;
uint8_t NumBlockTypes;
struct cfi_intelext_blockinfo BlockTypes[1];
-} __attribute__((packed));
+} __packed;
struct cfi_intelext_programming_regioninfo {
uint8_t ProgRegShift;
@@ -214,7 +214,7 @@ struct cfi_intelext_programming_regioninfo {
uint8_t Reserved2;
uint8_t ControlInvalid;
uint8_t Reserved3;
-} __attribute__((packed));
+} __packed;
/* Vendor-Specific PRI for AMD/Fujitsu Extended Command Set (0x0002) */
@@ -233,7 +233,7 @@ struct cfi_pri_amdstd {
uint8_t VppMin;
uint8_t VppMax;
uint8_t TopBottom;
-} __attribute__((packed));
+} __packed;
/* Vendor-Specific PRI for Atmel chips (command set 0x0002) */
@@ -245,18 +245,18 @@ struct cfi_pri_atmel {
uint8_t BottomBoot;
uint8_t BurstMode;
uint8_t PageMode;
-} __attribute__((packed));
+} __packed;
struct cfi_pri_query {
uint8_t NumFields;
uint32_t ProtField[1]; /* Not host ordered */
-} __attribute__((packed));
+} __packed;
struct cfi_bri_query {
uint8_t PageModeReadCap;
uint8_t NumFields;
uint32_t ConfField[1]; /* Not host ordered */
-} __attribute__((packed));
+} __packed;
#define P_ID_NONE 0x0000
#define P_ID_INTEL_EXT 0x0001
--
cgit v1.2.1
From e91ded8db57472c20b59b2242b100764cc152a10 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Mon, 4 Aug 2014 04:50:41 -0400
Subject: uapi: netfilter_arp: use __u8 instead of u_int8_t
Similarly, the u_int8_t type is non-standard and not defined. Change
it to use __u8 like the rest of the netfilter headers.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter_arp/arpt_mangle.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter_arp/arpt_mangle.h b/include/uapi/linux/netfilter_arp/arpt_mangle.h
index 250f502902bb..8c2b16a1f5a0 100644
--- a/include/uapi/linux/netfilter_arp/arpt_mangle.h
+++ b/include/uapi/linux/netfilter_arp/arpt_mangle.h
@@ -13,7 +13,7 @@ struct arpt_mangle
union {
struct in_addr tgt_ip;
} u_t;
- u_int8_t flags;
+ __u8 flags;
int target;
};
--
cgit v1.2.1
From 3a5f87c286515c54ff5c52c3e64d0c522b7570c0 Mon Sep 17 00:00:00 2001
From: Thomas Wood <thomas.wood@intel.com>
Date: Wed, 20 Aug 2014 14:45:00 +0100
Subject: drm: fix plane rotation when restoring fbdev configuration
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Make sure plane rotation is reset correctly when restoring the fbdev
configuration by using drm_mode_plane_set_obj_prop which calls the
driver's set_property callback.
The rotation reset feature was introduced in commit 9783de2 (drm:
Resetting rotation property) and the callback issue was originally
addressed in a previous version of the patch, but the fix was not
present in the final version.
v2: Fix documentation warning
Add some more details to the commit message (Daniel Vetter)
Testcase: igt/kms_rotation_crc
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82236
Cc: Sonika Jindal <sonika.jindal@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 62f73bdbcc47..38fae5d9ad73 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1121,6 +1121,9 @@ extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
+extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
+ struct drm_property *property,
+ uint64_t value);
extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
int *bpp);
--
cgit v1.2.1
From df11e506d330d9a0e5a701cd2c5fcb7d461b6060 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Thu, 21 Aug 2014 10:11:34 +0800
Subject: regulator: core: Add back the const qualifier for ops of struct
regulator_desc
Fix below build warning:
CC [M] drivers/regulator/hi6421-regulator.o
drivers/regulator/hi6421-regulator.c:356:2: warning: initialization discards 'const' qualifier from pointer target type [enabled by default]
This is a revert of commit 716845ebeb50 ("regulator: core: Fix build error due
to const qualifier for ops"). The build error was fixed by commit 39f5460d7f9c
("regulator: core: add const to regulator_ops and fix build error in mc13892").
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/linux/regulator/driver.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 3abda7554d82..efe058f8f746 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -246,7 +246,7 @@ struct regulator_desc {
int id;
bool continuous_voltage_range;
unsigned n_voltages;
- struct regulator_ops *ops;
+ const struct regulator_ops *ops;
int irq;
enum regulator_type type;
struct module *owner;
--
cgit v1.2.1
From e790d9ef6405633b007339d746b709aed43a928d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@redhat.com>
Date: Thu, 21 Aug 2014 18:08:05 +0200
Subject: KVM: add kvm_arch_sched_in
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Introduce preempt notifiers for architecture specific code.
Advantage over creating a new notifier in every arch is slightly simpler
code and guaranteed call order with respect to kvm_sched_in.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a4c33b34fe3f..ebd723676633 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -624,6 +624,8 @@ void kvm_arch_exit(void);
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
+void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu);
+
void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
--
cgit v1.2.1
From 0fc87864879c46afe145e20ec09c9dba2328e3be Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Wed, 28 May 2014 09:38:21 -0300
Subject: [media] v4l: Add test pattern colour component controls
In many cases the test pattern has selectable values for each colour
component. Implement controls for raw bayer components. Additional controls
should be defined for colour components that are not covered by these
controls.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
include/uapi/linux/v4l2-controls.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index e946e43fb8d5..8b930210a4b9 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -865,6 +865,10 @@ enum v4l2_jpeg_chroma_subsampling {
#define V4L2_CID_VBLANK (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 1)
#define V4L2_CID_HBLANK (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 2)
#define V4L2_CID_ANALOGUE_GAIN (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 3)
+#define V4L2_CID_TEST_PATTERN_RED (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 4)
+#define V4L2_CID_TEST_PATTERN_GREENR (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 5)
+#define V4L2_CID_TEST_PATTERN_BLUE (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 6)
+#define V4L2_CID_TEST_PATTERN_GREENB (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 7)
/* Image processing controls */
--
cgit v1.2.1
From a913d8742e275dd2d80726afac02311a0f49d161 Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Mon, 26 May 2014 09:46:18 -0300
Subject: [media] smiapp: Add driver-specific test pattern menu item
definitions
Add numeric definitions for menu items used in the smiapp driver's test
pattern menu.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/smiapp.h | 29 +++++++++++++++++++++++++++++
2 files changed, 30 insertions(+)
create mode 100644 include/uapi/linux/smiapp.h
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 24e9033f8b3f..4ec377d103c7 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -353,6 +353,7 @@ header-y += serio.h
header-y += shm.h
header-y += signal.h
header-y += signalfd.h
+header-y += smiapp.h
header-y += snmp.h
header-y += sock_diag.h
header-y += socket.h
diff --git a/include/uapi/linux/smiapp.h b/include/uapi/linux/smiapp.h
new file mode 100644
index 000000000000..53938f4412ee
--- /dev/null
+++ b/include/uapi/linux/smiapp.h
@@ -0,0 +1,29 @@
+/*
+ * include/uapi/linux/smiapp.h
+ *
+ * Generic driver for SMIA/SMIA++ compliant camera modules
+ *
+ * Copyright (C) 2014 Intel Corporation
+ * Contact: Sakari Ailus <sakari.ailus@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#ifndef __UAPI_LINUX_SMIAPP_H_
+#define __UAPI_LINUX_SMIAPP_H_
+
+#define V4L2_SMIAPP_TEST_PATTERN_MODE_DISABLED 0
+#define V4L2_SMIAPP_TEST_PATTERN_MODE_SOLID_COLOUR 1
+#define V4L2_SMIAPP_TEST_PATTERN_MODE_COLOUR_BARS 2
+#define V4L2_SMIAPP_TEST_PATTERN_MODE_COLOUR_BARS_GREY 3
+#define V4L2_SMIAPP_TEST_PATTERN_MODE_PN9 4
+
+#endif /* __UAPI_LINUX_SMIAPP_H_ */
--
cgit v1.2.1
From 9a36d8ed33c481a99f69f8a2eeb22e3c7750e522 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Mon, 19 May 2014 16:37:38 -0300
Subject: [media] omap3isp: ccdc: Add basic support for interlaced video
When the CCDC input is interlaced enable the alternate field order on
the CCDC output video node. The field signal polarity is specified
through platform data.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Enrico Butera <ebutera@users.sourceforge.net>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
include/media/omap3isp.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/media/omap3isp.h b/include/media/omap3isp.h
index c9d06d9f7e6e..398279dd1922 100644
--- a/include/media/omap3isp.h
+++ b/include/media/omap3isp.h
@@ -57,6 +57,8 @@ enum {
* 0 - Active high, 1 - Active low
* @vs_pol: Vertical synchronization polarity
* 0 - Active high, 1 - Active low
+ * @fld_pol: Field signal polarity
+ * 0 - Positive, 1 - Negative
* @data_pol: Data polarity
* 0 - Normal, 1 - One's complement
*/
@@ -65,6 +67,7 @@ struct isp_parallel_platform_data {
unsigned int clk_pol:1;
unsigned int hs_pol:1;
unsigned int vs_pol:1;
+ unsigned int fld_pol:1;
unsigned int data_pol:1;
};
--
cgit v1.2.1
From f035eb4e976ef5a059e30bc91cfd310ff030a7d3 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Thu, 7 Aug 2014 03:47:14 -0300
Subject: [media] videobuf2: fix lockdep warning
The following lockdep warning has been there ever since commit a517cca6b24fc54ac209e44118ec8962051662e3
one year ago:
[ 403.117947] ======================================================
[ 403.117949] [ INFO: possible circular locking dependency detected ]
[ 403.117953] 3.16.0-rc6-test-media #961 Not tainted
[ 403.117954] -------------------------------------------------------
[ 403.117956] v4l2-ctl/15377 is trying to acquire lock:
[ 403.117959] (&dev->mutex#3){+.+.+.}, at: [<ffffffffa005a6c3>] vb2_fop_mmap+0x33/0x90 [videobuf2_core]
[ 403.117974]
[ 403.117974] but task is already holding lock:
[ 403.117976] (&mm->mmap_sem){++++++}, at: [<ffffffff8118291f>] vm_mmap_pgoff+0x6f/0xc0
[ 403.117987]
[ 403.117987] which lock already depends on the new lock.
[ 403.117987]
[ 403.117990]
[ 403.117990] the existing dependency chain (in reverse order) is:
[ 403.117992]
[ 403.117992] -> #1 (&mm->mmap_sem){++++++}:
[ 403.117997] [<ffffffff810d733c>] validate_chain.isra.39+0x5fc/0x9a0
[ 403.118006] [<ffffffff810d8bc3>] __lock_acquire+0x4d3/0xd30
[ 403.118010] [<ffffffff810d9da7>] lock_acquire+0xa7/0x160
[ 403.118014] [<ffffffff8118c9ec>] might_fault+0x7c/0xb0
[ 403.118018] [<ffffffffa0028a25>] video_usercopy+0x425/0x610 [videodev]
[ 403.118028] [<ffffffffa0028c25>] video_ioctl2+0x15/0x20 [videodev]
[ 403.118034] [<ffffffffa0022764>] v4l2_ioctl+0x184/0x1a0 [videodev]
[ 403.118040] [<ffffffff811d77d0>] do_vfs_ioctl+0x2f0/0x4f0
[ 403.118307] [<ffffffff811d7a51>] SyS_ioctl+0x81/0xa0
[ 403.118311] [<ffffffff8199dc69>] system_call_fastpath+0x16/0x1b
[ 403.118319]
[ 403.118319] -> #0 (&dev->mutex#3){+.+.+.}:
[ 403.118324] [<ffffffff810d6a96>] check_prevs_add+0x746/0x9f0
[ 403.118329] [<ffffffff810d733c>] validate_chain.isra.39+0x5fc/0x9a0
[ 403.118333] [<ffffffff810d8bc3>] __lock_acquire+0x4d3/0xd30
[ 403.118336] [<ffffffff810d9da7>] lock_acquire+0xa7/0x160
[ 403.118340] [<ffffffff81999664>] mutex_lock_interruptible_nested+0x64/0x640
[ 403.118344] [<ffffffffa005a6c3>] vb2_fop_mmap+0x33/0x90 [videobuf2_core]
[ 403.118349] [<ffffffffa0022122>] v4l2_mmap+0x62/0xa0 [videodev]
[ 403.118354] [<ffffffff81197270>] mmap_region+0x3d0/0x5d0
[ 403.118359] [<ffffffff8119778d>] do_mmap_pgoff+0x31d/0x400
[ 403.118363] [<ffffffff81182940>] vm_mmap_pgoff+0x90/0xc0
[ 403.118366] [<ffffffff81195cef>] SyS_mmap_pgoff+0x1df/0x2a0
[ 403.118369] [<ffffffff810085c2>] SyS_mmap+0x22/0x30
[ 403.118376] [<ffffffff8199dc69>] system_call_fastpath+0x16/0x1b
[ 403.118381]
[ 403.118381] other info that might help us debug this:
[ 403.118381]
[ 403.118383] Possible unsafe locking scenario:
[ 403.118383]
[ 403.118385] CPU0 CPU1
[ 403.118387] ---- ----
[ 403.118388] lock(&mm->mmap_sem);
[ 403.118391] lock(&dev->mutex#3);
[ 403.118394] lock(&mm->mmap_sem);
[ 403.118397] lock(&dev->mutex#3);
[ 403.118400]
[ 403.118400] *** DEADLOCK ***
[ 403.118400]
[ 403.118403] 1 lock held by v4l2-ctl/15377:
[ 403.118405] #0: (&mm->mmap_sem){++++++}, at: [<ffffffff8118291f>] vm_mmap_pgoff+0x6f/0xc0
[ 403.118411]
[ 403.118411] stack backtrace:
[ 403.118415] CPU: 0 PID: 15377 Comm: v4l2-ctl Not tainted 3.16.0-rc6-test-media #961
[ 403.118418] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013
[ 403.118420] ffffffff82a6c9d0 ffff8800af37fb00 ffffffff819916a2 ffffffff82a6c9d0
[ 403.118425] ffff8800af37fb40 ffffffff810d5715 ffff8802308e4200 0000000000000000
[ 403.118429] ffff8802308e4a48 ffff8802308e4a48 ffff8802308e4200 0000000000000001
[ 403.118433] Call Trace:
[ 403.118441] [<ffffffff819916a2>] dump_stack+0x4e/0x7a
[ 403.118445] [<ffffffff810d5715>] print_circular_bug+0x1d5/0x2a0
[ 403.118449] [<ffffffff810d6a96>] check_prevs_add+0x746/0x9f0
[ 403.118455] [<ffffffff8119c172>] ? find_vmap_area+0x42/0x70
[ 403.118459] [<ffffffff810d733c>] validate_chain.isra.39+0x5fc/0x9a0
[ 403.118463] [<ffffffff810d8bc3>] __lock_acquire+0x4d3/0xd30
[ 403.118468] [<ffffffff810d9da7>] lock_acquire+0xa7/0x160
[ 403.118472] [<ffffffffa005a6c3>] ? vb2_fop_mmap+0x33/0x90 [videobuf2_core]
[ 403.118476] [<ffffffffa005a6c3>] ? vb2_fop_mmap+0x33/0x90 [videobuf2_core]
[ 403.118480] [<ffffffff81999664>] mutex_lock_interruptible_nested+0x64/0x640
[ 403.118484] [<ffffffffa005a6c3>] ? vb2_fop_mmap+0x33/0x90 [videobuf2_core]
[ 403.118488] [<ffffffffa005a6c3>] ? vb2_fop_mmap+0x33/0x90 [videobuf2_core]
[ 403.118493] [<ffffffff810d8055>] ? mark_held_locks+0x75/0xa0
[ 403.118497] [<ffffffffa005a6c3>] vb2_fop_mmap+0x33/0x90 [videobuf2_core]
[ 403.118502] [<ffffffffa0022122>] v4l2_mmap+0x62/0xa0 [videodev]
[ 403.118506] [<ffffffff81197270>] mmap_region+0x3d0/0x5d0
[ 403.118510] [<ffffffff8119778d>] do_mmap_pgoff+0x31d/0x400
[ 403.118513] [<ffffffff81182940>] vm_mmap_pgoff+0x90/0xc0
[ 403.118517] [<ffffffff81195cef>] SyS_mmap_pgoff+0x1df/0x2a0
[ 403.118521] [<ffffffff810085c2>] SyS_mmap+0x22/0x30
[ 403.118525] [<ffffffff8199dc69>] system_call_fastpath+0x16/0x1b
The reason is that vb2_fop_mmap and vb2_fop_get_unmapped_area take the core lock
while they are called with the mmap_sem semaphore held. But elsewhere in the code
the core lock is taken first but calls to copy_to/from_user() can take the mmap_sem
semaphore as well, potentially causing a classical A-B/B-A deadlock.
However, the mmap/get_unmapped_area calls really shouldn't take the core lock
at all. So what would happen if they don't take the core lock anymore?
There are two situations that need to be taken into account: calling mmap while
new buffers are being added and calling mmap while buffers are being deleted.
The first case works almost fine without a lock: in all cases mmap relies on
correctly filled-in q->num_buffers/q->num_planes values and those are only
updated by reqbufs and create_buffers *after* any new buffers have been
initialized completely. Except in one case: if an error occurred while allocating
the buffers it will increase num_buffers and rely on __vb2_queue_free to
decrease it again. So there is a short period where the buffer information
may be wrong.
The second case definitely does pose a problem: buffers may be in the process
of being deleted, without the internal structure being updated.
In order to fix this a new mutex is added to vb2_queue that is taken when
buffers are allocated or deleted, and in vb2_mmap. That way vb2_mmap won't
get stale buffer data. Note that this is a problem only for MEMORY_MMAP, so
even though __qbuf_userptr and __qbuf_dmabuf also mess around with buffers
(mem_priv in particular), this doesn't clash with vb2_mmap or
vb2_get_unmapped_area since those are MMAP specific.
As an additional bonus the hack in __buf_prepare, the USERPTR case, can be
removed as well since mmap() no longer takes the core lock.
All in all a much cleaner solution.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
include/media/videobuf2-core.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index fc910a622451..5a10d8d695b4 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -366,6 +366,7 @@ struct v4l2_fh;
* cannot be started unless at least this number of buffers
* have been queued into the driver.
*
+ * @mmap_lock: private mutex used when buffers are allocated/freed/mmapped
* @memory: current memory type used
* @bufs: videobuf buffer structures
* @num_buffers: number of allocated/used buffers
@@ -399,6 +400,7 @@ struct vb2_queue {
u32 min_buffers_needed;
/* private: internal use only */
+ struct mutex mmap_lock;
enum v4l2_memory memory;
struct vb2_buffer *bufs[VIDEO_MAX_FRAME];
unsigned int num_buffers;
--
cgit v1.2.1
From 8913dc0bb913ac3dc83ed5c10bac2f4e55431981 Mon Sep 17 00:00:00 2001
From: Paul Zimmerman <Paul.Zimmerman@synopsys.com>
Date: Thu, 21 Aug 2014 20:28:20 +0000
Subject: usb: gadget: document a usb_ep_dequeue() requirement
Document the requirement that the request be dequeued and its
completion routine called before usb_ep_dequeue() returns. Also
fix some capitalization issues in the existing text.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/gadget.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index c3a61853cd13..c540557b564b 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -345,12 +345,13 @@ static inline int usb_ep_queue(struct usb_ep *ep,
* @ep:the endpoint associated with the request
* @req:the request being canceled
*
- * if the request is still active on the endpoint, it is dequeued and its
+ * If the request is still active on the endpoint, it is dequeued and its
* completion routine is called (with status -ECONNRESET); else a negative
- * error code is returned.
+ * error code is returned. This is guaranteed to happen before the call to
+ * usb_ep_dequeue() returns.
*
- * note that some hardware can't clear out write fifos (to unlink the request
- * at the head of the queue) except as part of disconnecting from usb. such
+ * Note that some hardware can't clear out write fifos (to unlink the request
+ * at the head of the queue) except as part of disconnecting from usb. Such
* restrictions prevent drivers from supporting configuration changes,
* even to configuration zero (a "chapter 9" requirement).
*/
--
cgit v1.2.1
From da076a888ab19f13816372796ed231e7d6ff5fed Mon Sep 17 00:00:00 2001
From: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Date: Tue, 19 Aug 2014 16:50:49 +0400
Subject: ARM: shmobile: r8a7790: Add JPU clock dt and CPG define.
Signed-off-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7790-clock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7790-clock.h b/include/dt-bindings/clock/r8a7790-clock.h
index f929a79e6998..8ea7ab0346ad 100644
--- a/include/dt-bindings/clock/r8a7790-clock.h
+++ b/include/dt-bindings/clock/r8a7790-clock.h
@@ -26,6 +26,7 @@
#define R8A7790_CLK_MSIOF0 0
/* MSTP1 */
+#define R8A7790_CLK_JPU 6
#define R8A7790_CLK_TMU1 11
#define R8A7790_CLK_TMU3 21
#define R8A7790_CLK_TMU2 22
--
cgit v1.2.1
From ed48b5d6fd339d145df5a6a1e48cf56ef265cf4f Mon Sep 17 00:00:00 2001
From: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Date: Tue, 19 Aug 2014 16:50:51 +0400
Subject: ARM: shmobile: r8a7791: Add JPU clock dt and CPG define.
Signed-off-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7791-clock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7791-clock.h b/include/dt-bindings/clock/r8a7791-clock.h
index f0d4d1049162..58c3f49d068c 100644
--- a/include/dt-bindings/clock/r8a7791-clock.h
+++ b/include/dt-bindings/clock/r8a7791-clock.h
@@ -25,6 +25,7 @@
#define R8A7791_CLK_MSIOF0 0
/* MSTP1 */
+#define R8A7791_CLK_JPU 6
#define R8A7791_CLK_TMU1 11
#define R8A7791_CLK_TMU3 21
#define R8A7791_CLK_TMU2 22
--
cgit v1.2.1
From d6fb17ad7c9e0aa28ce0bc2e33790f9459677370 Mon Sep 17 00:00:00 2001
From: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Date: Fri, 8 Aug 2014 16:23:09 +0200
Subject: ARM: shmobile: r8a7740: clock register bits
Contains the header file with the clock pulse generator and MSTP bits.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7740-clock.h | 77 +++++++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
create mode 100644 include/dt-bindings/clock/r8a7740-clock.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7740-clock.h b/include/dt-bindings/clock/r8a7740-clock.h
new file mode 100644
index 000000000000..f6b4b0fe7a43
--- /dev/null
+++ b/include/dt-bindings/clock/r8a7740-clock.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2014 Ulrich Hecht
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_R8A7740_H__
+#define __DT_BINDINGS_CLOCK_R8A7740_H__
+
+/* CPG */
+#define R8A7740_CLK_SYSTEM 0
+#define R8A7740_CLK_PLLC0 1
+#define R8A7740_CLK_PLLC1 2
+#define R8A7740_CLK_PLLC2 3
+#define R8A7740_CLK_R 4
+#define R8A7740_CLK_USB24S 5
+#define R8A7740_CLK_I 6
+#define R8A7740_CLK_ZG 7
+#define R8A7740_CLK_B 8
+#define R8A7740_CLK_M1 9
+#define R8A7740_CLK_HP 10
+#define R8A7740_CLK_HPP 11
+#define R8A7740_CLK_USBP 12
+#define R8A7740_CLK_S 13
+#define R8A7740_CLK_ZB 14
+#define R8A7740_CLK_M3 15
+#define R8A7740_CLK_CP 16
+
+/* MSTP1 */
+#define R8A7740_CLK_CEU21 28
+#define R8A7740_CLK_CEU20 27
+#define R8A7740_CLK_TMU0 25
+#define R8A7740_CLK_LCDC1 17
+#define R8A7740_CLK_IIC0 16
+#define R8A7740_CLK_TMU1 11
+#define R8A7740_CLK_LCDC0 0
+
+/* MSTP2 */
+#define R8A7740_CLK_SCIFA6 30
+#define R8A7740_CLK_SCIFA7 22
+#define R8A7740_CLK_DMAC1 18
+#define R8A7740_CLK_DMAC2 17
+#define R8A7740_CLK_DMAC3 16
+#define R8A7740_CLK_USBDMAC 14
+#define R8A7740_CLK_SCIFA5 7
+#define R8A7740_CLK_SCIFB 6
+#define R8A7740_CLK_SCIFA0 4
+#define R8A7740_CLK_SCIFA1 3
+#define R8A7740_CLK_SCIFA2 2
+#define R8A7740_CLK_SCIFA3 1
+#define R8A7740_CLK_SCIFA4 0
+
+/* MSTP3 */
+#define R8A7740_CLK_CMT1 29
+#define R8A7740_CLK_FSI 28
+#define R8A7740_CLK_IIC1 23
+#define R8A7740_CLK_USBF 20
+#define R8A7740_CLK_SDHI0 14
+#define R8A7740_CLK_SDHI1 13
+#define R8A7740_CLK_MMC 12
+#define R8A7740_CLK_GETHER 9
+#define R8A7740_CLK_TPU0 4
+
+/* MSTP4 */
+#define R8A7740_CLK_USBH 16
+#define R8A7740_CLK_SDHI2 15
+#define R8A7740_CLK_USBFUNC 7
+#define R8A7740_CLK_USBPHY 6
+
+/* SUBCK* */
+#define R8A7740_CLK_SUBCK 9
+#define R8A7740_CLK_SUBCK2 10
+
+#endif /* __DT_BINDINGS_CLOCK_R8A7740_H__ */
--
cgit v1.2.1
From d4261e5650004d6d51137553ea5433d5828562dc Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Tue, 19 Aug 2014 16:02:12 +0200
Subject: bonding: create netlink event when bonding option is changed
Userspace needs to be notified if one changes some option.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 38377392d082..7e2b0b8b5cd7 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1982,6 +1982,7 @@ struct pcpu_sw_netstats {
#define NETDEV_CHANGEUPPER 0x0015
#define NETDEV_RESEND_IGMP 0x0016
#define NETDEV_PRECHANGEMTU 0x0017 /* notify before mtu change happened */
+#define NETDEV_CHANGEINFODATA 0x0018
int register_netdevice_notifier(struct notifier_block *nb);
int unregister_netdevice_notifier(struct notifier_block *nb);
--
cgit v1.2.1
From d2de875c6d4cbec8a99c880160181a3ed5b9992e Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 22 Aug 2014 18:32:09 -0700
Subject: net: use ktime_get_ns() and ktime_get_real_ns() helpers
ktime_get_ns() replaces ktime_to_ns(ktime_get())
ktime_get_real_ns() replaces ktime_to_ns(ktime_get_real())
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/codel.h | 2 +-
include/net/pkt_sched.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/codel.h b/include/net/codel.h
index fe0eab32ce76..aeee28081245 100644
--- a/include/net/codel.h
+++ b/include/net/codel.h
@@ -66,7 +66,7 @@ typedef s32 codel_tdiff_t;
static inline codel_time_t codel_get_time(void)
{
- u64 ns = ktime_to_ns(ktime_get());
+ u64 ns = ktime_get_ns();
return ns >> CODEL_SHIFT;
}
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index ec030cd76616..8bbe626e9ece 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -50,7 +50,7 @@ typedef long psched_tdiff_t;
static inline psched_time_t psched_get_time(void)
{
- return PSCHED_NS2TICKS(ktime_to_ns(ktime_get()));
+ return PSCHED_NS2TICKS(ktime_get_ns());
}
static inline psched_tdiff_t
--
cgit v1.2.1
From 989e04c5bc3ff77d65e1f0d87bf7904dfa30d41c Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Fri, 22 Aug 2014 14:15:22 -0700
Subject: tcp: improve undo on timeout
Upon timeout, undo (via both timestamps/Eifel and DSACKs) was
disabled if any retransmits were still in flight. The concern was
perhaps that spurious retransmission sent in a previous recovery
episode may trigger DSACKs to falsely undo the current recovery.
However, this inadvertently misses undo opportunities (using either
TCP timestamps or DSACKs) when timeout occurs during a loss episode,
i.e. recurring timeouts or timeout during fast recovery. In these
cases some retransmissions will be in flight but we should allow
undo. Furthermore, we should only reset undo_marker and undo_retrans
upon timeout if we are starting a new recovery episode. Finally,
when we do reset our undo state, we now do so in a manner similar
to tcp_enter_recovery(), so that we require a DSACK for each of
the outstsanding retransmissions. This will achieve the original
goal by requiring that we receive the same number of DSACKs as
retransmissions.
This patch increases the undo events by 50% on Google servers.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/tcp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index fa5258f322e7..e567f0dbf282 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -276,7 +276,7 @@ struct tcp_sock {
u32 retrans_stamp; /* Timestamp of the last retransmit,
* also used in SYN-SENT to remember stamp of
* the first SYN. */
- u32 undo_marker; /* tracking retrans started here. */
+ u32 undo_marker; /* snd_una upon a new recovery episode. */
int undo_retrans; /* number of undoable retransmissions. */
u32 total_retrans; /* Total retransmits for entire connection */
--
cgit v1.2.1
From 477fa2bc4c838eebe8dcd66ff8e88a1ab81734b9 Mon Sep 17 00:00:00 2001
From: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Date: Fri, 8 Aug 2014 16:23:09 +0200
Subject: ARM: shmobile: r8a7740: clock register bits
Contains the header file with the clock pulse generator and MSTP bits.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7740-clock.h | 77 +++++++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
create mode 100644 include/dt-bindings/clock/r8a7740-clock.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7740-clock.h b/include/dt-bindings/clock/r8a7740-clock.h
new file mode 100644
index 000000000000..f6b4b0fe7a43
--- /dev/null
+++ b/include/dt-bindings/clock/r8a7740-clock.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2014 Ulrich Hecht
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_R8A7740_H__
+#define __DT_BINDINGS_CLOCK_R8A7740_H__
+
+/* CPG */
+#define R8A7740_CLK_SYSTEM 0
+#define R8A7740_CLK_PLLC0 1
+#define R8A7740_CLK_PLLC1 2
+#define R8A7740_CLK_PLLC2 3
+#define R8A7740_CLK_R 4
+#define R8A7740_CLK_USB24S 5
+#define R8A7740_CLK_I 6
+#define R8A7740_CLK_ZG 7
+#define R8A7740_CLK_B 8
+#define R8A7740_CLK_M1 9
+#define R8A7740_CLK_HP 10
+#define R8A7740_CLK_HPP 11
+#define R8A7740_CLK_USBP 12
+#define R8A7740_CLK_S 13
+#define R8A7740_CLK_ZB 14
+#define R8A7740_CLK_M3 15
+#define R8A7740_CLK_CP 16
+
+/* MSTP1 */
+#define R8A7740_CLK_CEU21 28
+#define R8A7740_CLK_CEU20 27
+#define R8A7740_CLK_TMU0 25
+#define R8A7740_CLK_LCDC1 17
+#define R8A7740_CLK_IIC0 16
+#define R8A7740_CLK_TMU1 11
+#define R8A7740_CLK_LCDC0 0
+
+/* MSTP2 */
+#define R8A7740_CLK_SCIFA6 30
+#define R8A7740_CLK_SCIFA7 22
+#define R8A7740_CLK_DMAC1 18
+#define R8A7740_CLK_DMAC2 17
+#define R8A7740_CLK_DMAC3 16
+#define R8A7740_CLK_USBDMAC 14
+#define R8A7740_CLK_SCIFA5 7
+#define R8A7740_CLK_SCIFB 6
+#define R8A7740_CLK_SCIFA0 4
+#define R8A7740_CLK_SCIFA1 3
+#define R8A7740_CLK_SCIFA2 2
+#define R8A7740_CLK_SCIFA3 1
+#define R8A7740_CLK_SCIFA4 0
+
+/* MSTP3 */
+#define R8A7740_CLK_CMT1 29
+#define R8A7740_CLK_FSI 28
+#define R8A7740_CLK_IIC1 23
+#define R8A7740_CLK_USBF 20
+#define R8A7740_CLK_SDHI0 14
+#define R8A7740_CLK_SDHI1 13
+#define R8A7740_CLK_MMC 12
+#define R8A7740_CLK_GETHER 9
+#define R8A7740_CLK_TPU0 4
+
+/* MSTP4 */
+#define R8A7740_CLK_USBH 16
+#define R8A7740_CLK_SDHI2 15
+#define R8A7740_CLK_USBFUNC 7
+#define R8A7740_CLK_USBPHY 6
+
+/* SUBCK* */
+#define R8A7740_CLK_SUBCK 9
+#define R8A7740_CLK_SUBCK2 10
+
+#endif /* __DT_BINDINGS_CLOCK_R8A7740_H__ */
--
cgit v1.2.1
From 53f3cc46336b9e514c98556b4a009a69ed808d3b Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Sat, 23 Aug 2014 14:45:47 +0400
Subject: pata_platform: Remove useless irq_flags field
IRQ flags can be obtained from resource structure, there are no need
to use additional field in the platform_data to store these values.
This patch removes this field and convert existing users of this driver
to use IRQ flags from the resources.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/ata_platform.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/ata_platform.h b/include/linux/ata_platform.h
index b9fde17f767c..5c618a084225 100644
--- a/include/linux/ata_platform.h
+++ b/include/linux/ata_platform.h
@@ -8,11 +8,6 @@ struct pata_platform_info {
* spacing used by ata_std_ports().
*/
unsigned int ioport_shift;
- /*
- * Indicate platform specific irq types and initial
- * IRQ flags when call request_irq()
- */
- unsigned int irq_flags;
};
extern int __pata_platform_probe(struct device *dev,
--
cgit v1.2.1
From 3af20efc0f83cdc65ce56ec108c0e81f602364df Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 22 Aug 2014 18:55:39 -0700
Subject: net: phy: broadcom: extract all registers to brcmphy.h
Commit 439d39a9ac8fbbba9c04581361188f33f21ced50 ("net: phy: broadcom:
extract register definitions") added a bunch of registers to brcmphy.h
but left some to broadcom.c, move all of them to the header file since
the BCM54xx and BCM7xxx PHY drivers do share all of these registers.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 103 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 103 insertions(+)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 61219b9b3445..be31bf9f60c2 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -92,4 +92,107 @@
#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x0000
+/*
+ * Broadcom LED source encodings. These are used in BCM5461, BCM5481,
+ * BCM5482, and possibly some others.
+ */
+#define BCM_LED_SRC_LINKSPD1 0x0
+#define BCM_LED_SRC_LINKSPD2 0x1
+#define BCM_LED_SRC_XMITLED 0x2
+#define BCM_LED_SRC_ACTIVITYLED 0x3
+#define BCM_LED_SRC_FDXLED 0x4
+#define BCM_LED_SRC_SLAVE 0x5
+#define BCM_LED_SRC_INTR 0x6
+#define BCM_LED_SRC_QUALITY 0x7
+#define BCM_LED_SRC_RCVLED 0x8
+#define BCM_LED_SRC_MULTICOLOR1 0xa
+#define BCM_LED_SRC_OPENSHORT 0xb
+#define BCM_LED_SRC_OFF 0xe /* Tied high */
+#define BCM_LED_SRC_ON 0xf /* Tied low */
+
+
+/*
+ * BCM5482: Shadow registers
+ * Shadow values go into bits [14:10] of register 0x1c to select a shadow
+ * register to access.
+ */
+/* 00101: Spare Control Register 3 */
+#define BCM54XX_SHD_SCR3 0x05
+#define BCM54XX_SHD_SCR3_DEF_CLK125 0x0001
+#define BCM54XX_SHD_SCR3_DLLAPD_DIS 0x0002
+#define BCM54XX_SHD_SCR3_TRDDAPD 0x0004
+
+/* 01010: Auto Power-Down */
+#define BCM54XX_SHD_APD 0x0a
+#define BCM54XX_SHD_APD_EN 0x0020
+
+#define BCM5482_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */
+ /* LED3 / ~LINKSPD[2] selector */
+#define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4)
+ /* LED1 / ~LINKSPD[1] selector */
+#define BCM5482_SHD_LEDS1_LED1(src) ((src & 0xf) << 0)
+#define BCM54XX_SHD_RGMII_MODE 0x0b /* 01011: RGMII Mode Selector */
+#define BCM5482_SHD_SSD 0x14 /* 10100: Secondary SerDes control */
+#define BCM5482_SHD_SSD_LEDM 0x0008 /* SSD LED Mode enable */
+#define BCM5482_SHD_SSD_EN 0x0001 /* SSD enable */
+#define BCM5482_SHD_MODE 0x1f /* 11111: Mode Control Register */
+#define BCM5482_SHD_MODE_1000BX 0x0001 /* Enable 1000BASE-X registers */
+
+
+/*
+ * EXPANSION SHADOW ACCESS REGISTERS. (PHY REG 0x15, 0x16, and 0x17)
+ */
+#define MII_BCM54XX_EXP_AADJ1CH0 0x001f
+#define MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN 0x0200
+#define MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF 0x0100
+#define MII_BCM54XX_EXP_AADJ1CH3 0x601f
+#define MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ 0x0002
+#define MII_BCM54XX_EXP_EXP08 0x0F08
+#define MII_BCM54XX_EXP_EXP08_RJCT_2MHZ 0x0001
+#define MII_BCM54XX_EXP_EXP08_EARLY_DAC_WAKE 0x0200
+#define MII_BCM54XX_EXP_EXP75 0x0f75
+#define MII_BCM54XX_EXP_EXP75_VDACCTRL 0x003c
+#define MII_BCM54XX_EXP_EXP75_CM_OSC 0x0001
+#define MII_BCM54XX_EXP_EXP96 0x0f96
+#define MII_BCM54XX_EXP_EXP96_MYST 0x0010
+#define MII_BCM54XX_EXP_EXP97 0x0f97
+#define MII_BCM54XX_EXP_EXP97_MYST 0x0c0c
+
+/*
+ * BCM5482: Secondary SerDes registers
+ */
+#define BCM5482_SSD_1000BX_CTL 0x00 /* 1000BASE-X Control */
+#define BCM5482_SSD_1000BX_CTL_PWRDOWN 0x0800 /* Power-down SSD */
+#define BCM5482_SSD_SGMII_SLAVE 0x15 /* SGMII Slave Register */
+#define BCM5482_SSD_SGMII_SLAVE_EN 0x0002 /* Slave mode enable */
+#define BCM5482_SSD_SGMII_SLAVE_AD 0x0001 /* Slave auto-detection */
+
+
+/*****************************************************************************/
+/* Fast Ethernet Transceiver definitions. */
+/*****************************************************************************/
+
+#define MII_BRCM_FET_INTREG 0x1a /* Interrupt register */
+#define MII_BRCM_FET_IR_MASK 0x0100 /* Mask all interrupts */
+#define MII_BRCM_FET_IR_LINK_EN 0x0200 /* Link status change enable */
+#define MII_BRCM_FET_IR_SPEED_EN 0x0400 /* Link speed change enable */
+#define MII_BRCM_FET_IR_DUPLEX_EN 0x0800 /* Duplex mode change enable */
+#define MII_BRCM_FET_IR_ENABLE 0x4000 /* Interrupt enable */
+
+#define MII_BRCM_FET_BRCMTEST 0x1f /* Brcm test register */
+#define MII_BRCM_FET_BT_SRE 0x0080 /* Shadow register enable */
+
+
+/*** Shadow register definitions ***/
+
+#define MII_BRCM_FET_SHDW_MISCCTRL 0x10 /* Shadow misc ctrl */
+#define MII_BRCM_FET_SHDW_MC_FAME 0x4000 /* Force Auto MDIX enable */
+
+#define MII_BRCM_FET_SHDW_AUXMODE4 0x1a /* Auxiliary mode 4 */
+#define MII_BRCM_FET_SHDW_AM4_LED_MASK 0x0003
+#define MII_BRCM_FET_SHDW_AM4_LED_MODE1 0x0001
+
+#define MII_BRCM_FET_SHDW_AUXSTAT2 0x1b /* Auxiliary status 2 */
+#define MII_BRCM_FET_SHDW_AS2_APDE 0x0020 /* Auto power down enable */
+
#endif /* _LINUX_BRCMPHY_H */
--
cgit v1.2.1
From 705314797b8b997554b7e9d0ea7b65a497356e53 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 22 Aug 2014 18:55:40 -0700
Subject: net: phy: broadcom: move shadow 0x1C register accessors to brcmphy.h
The shadow register 0x1C is used both by the BCM54xxx PHYs and the
BCM7xxx internal PHYs, move the accessors to a common location so both
drivers can use them.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index be31bf9f60c2..722cf26567fa 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -195,4 +195,24 @@
#define MII_BRCM_FET_SHDW_AUXSTAT2 0x1b /* Auxiliary status 2 */
#define MII_BRCM_FET_SHDW_AS2_APDE 0x0020 /* Auto power down enable */
+/*
+ * Indirect register access functions for the 1000BASE-T/100BASE-TX/10BASE-T
+ * 0x1c shadow registers.
+ */
+static inline int bcm54xx_shadow_read(struct phy_device *phydev, u16 shadow)
+{
+ phy_write(phydev, MII_BCM54XX_SHD, MII_BCM54XX_SHD_VAL(shadow));
+ return MII_BCM54XX_SHD_DATA(phy_read(phydev, MII_BCM54XX_SHD));
+}
+
+static inline int bcm54xx_shadow_write(struct phy_device *phydev, u16 shadow,
+ u16 val)
+{
+ return phy_write(phydev, MII_BCM54XX_SHD,
+ MII_BCM54XX_SHD_WRITE |
+ MII_BCM54XX_SHD_VAL(shadow) |
+ MII_BCM54XX_SHD_DATA(val));
+}
+
+
#endif /* _LINUX_BRCMPHY_H */
--
cgit v1.2.1
From 66ce7fb9807b036058aa380bfd2b3851ae25ce39 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 22 Aug 2014 18:55:43 -0700
Subject: net: phy: export phy_{read,write}_mmd_indirect
Some PHY drivers might need to access Clause 45 registers in Clause 22
compatibility mode to e.g: properly advertise EEE support when disabled
by default.
Export these two helper functions: phy_read_mmd_indirect() and
phy_write_mmd_indirect() for drivers to use them.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/phy.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
(limited to 'include')
diff --git a/include/linux/phy.h b/include/linux/phy.h
index ed39956b5613..d090cfcaa167 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -597,6 +597,19 @@ static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
}
+/**
+ * phy_read_mmd_indirect - reads data from the MMD registers
+ * @phydev: The PHY device bus
+ * @prtad: MMD Address
+ * @devad: MMD DEVAD
+ * @addr: PHY address on the MII bus
+ *
+ * Description: it reads data from the MMD registers (clause 22 to access to
+ * clause 45) of the specified phy address.
+ */
+int phy_read_mmd_indirect(struct phy_device *phydev, int prtad,
+ int devad, int addr);
+
/**
* phy_read - Convenience function for reading a given PHY register
* @phydev: the phy_device struct
@@ -668,6 +681,20 @@ static inline int phy_write_mmd(struct phy_device *phydev, int devad,
return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
}
+/**
+ * phy_write_mmd_indirect - writes data to the MMD registers
+ * @phydev: The PHY device
+ * @prtad: MMD Address
+ * @devad: MMD DEVAD
+ * @addr: PHY address on the MII bus
+ * @data: data to write in the MMD register
+ *
+ * Description: Write data from the MMD registers of the specified
+ * phy address.
+ */
+void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
+ int devad, int addr, u32 data);
+
struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
bool is_c45,
struct phy_c45_device_ids *c45_ids);
--
cgit v1.2.1
From b8f9a02924bbeb0c46ca4c19561cbe765b80e264 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 22 Aug 2014 18:55:45 -0700
Subject: net: phy: bcm7xxx: enable EEE at the PHY level
The 28nm Gigabit PHY on BCM7xxx chips comes out of reset with absolutely
no EEE capabilities, such that we would actually return that we do not
support EEE when accessing 3.20 (MDIO_PCS_EEE_ABLE) registers.
Poke through the vendor-specific C45 register to enable EEE globally at
the PHY level, and advertise supported EEE modes.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 722cf26567fa..ee1431d976fa 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -214,5 +214,8 @@ static inline int bcm54xx_shadow_write(struct phy_device *phydev, u16 shadow,
MII_BCM54XX_SHD_DATA(val));
}
+#define BRCM_CL45VEN_EEE_CONTROL 0x803d
+#define LPI_FEATURE_EN 0x8000
+#define LPI_FEATURE_EN_DIG1000X 0x4000
#endif /* _LINUX_BRCMPHY_H */
--
cgit v1.2.1
From 690e36e726d00d2528bc569809048adf61550d80 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 23 Aug 2014 12:13:41 -0700
Subject: net: Allow raw buffers to be passed into the flow dissector.
Drivers, and perhaps other entities we have not yet considered,
sometimes want to know how deep the protocol headers go before
deciding how large of an SKB to allocate and how much of the packet to
place into the linear SKB area.
For example, consider a driver which has a device which DMAs into
pools of pages and then tells the driver where the data went in the
DMA descriptor(s). The driver can then build an SKB and reference
most of the data via SKB fragments (which are page/offset/length
triplets).
However at least some of the front of the packet should be placed into
the linear SKB area, which comes before the fragments, so that packet
processing can get at the headers efficiently. The first thing each
protocol layer is going to do is a "pskb_may_pull()" so we might as
well aggregate as much of this as possible while we're building the
SKB in the driver.
Part of supporting this is that we don't have an SKB yet, so we want
to be able to let the flow dissector operate on a raw buffer in order
to compute the offset of the end of the headers.
So now we have a __skb_flow_dissect() which takes an explicit data
pointer and length.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 18 ++++++++++++------
include/net/flow_keys.h | 14 ++++++++++++--
2 files changed, 24 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index abde271c18ae..18ddf9684a27 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2567,20 +2567,26 @@ __wsum __skb_checksum(const struct sk_buff *skb, int offset, int len,
__wsum skb_checksum(const struct sk_buff *skb, int offset, int len,
__wsum csum);
-static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
- int len, void *buffer)
+static inline void *__skb_header_pointer(const struct sk_buff *skb, int offset,
+ int len, void *data, int hlen, void *buffer)
{
- int hlen = skb_headlen(skb);
-
if (hlen - offset >= len)
- return skb->data + offset;
+ return data + offset;
- if (skb_copy_bits(skb, offset, buffer, len) < 0)
+ if (!skb ||
+ skb_copy_bits(skb, offset, buffer, len) < 0)
return NULL;
return buffer;
}
+static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
+ int len, void *buffer)
+{
+ return __skb_header_pointer(skb, offset, len, skb->data,
+ skb_headlen(skb), buffer);
+}
+
/**
* skb_needs_linearize - check if we need to linearize a given skb
* depending on the given device features.
diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h
index 6667a054763a..4040f63932c5 100644
--- a/include/net/flow_keys.h
+++ b/include/net/flow_keys.h
@@ -27,7 +27,17 @@ struct flow_keys {
u8 ip_proto;
};
-bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow);
-__be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto);
+bool __skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow,
+ void *data, int hlen);
+static inline bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow)
+{
+ return __skb_flow_dissect(skb, flow, NULL, 0);
+}
+__be32 __skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto,
+ void *data, int hlen_proto);
+static inline __be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto)
+{
+ return __skb_flow_get_ports(skb, thoff, ip_proto, NULL, 0);
+}
u32 flow_hash_from_keys(struct flow_keys *keys);
#endif
--
cgit v1.2.1
From 179033b3e064d2cd3f5f9945e76b0a0f0fbf4883 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@kernel.org>
Date: Thu, 7 Aug 2014 11:48:26 -0400
Subject: perf: Add PERF_EVENT_STATE_EXIT state for events with exited task
Adding new perf event state to indicate that the monitored task has
exited. In this case the event stays alive until the owner task exits
or close the event fd while providing the last data through the read
syscall and ring buffer.
Instead it needs to propagate the error info (monitored task has died)
via poll and read syscalls by returning POLLHUP and 0 respectively.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20140811120102.GY9918@twins.programming.kicks-ass.net
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-t5y3w8jjx6tfo5w8y6oajsjq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
include/linux/perf_event.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index f0a1036b1911..893a0d07986f 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -269,6 +269,7 @@ struct pmu {
* enum perf_event_active_state - the states of a event
*/
enum perf_event_active_state {
+ PERF_EVENT_STATE_EXIT = -3,
PERF_EVENT_STATE_ERROR = -2,
PERF_EVENT_STATE_OFF = -1,
PERF_EVENT_STATE_INACTIVE = 0,
--
cgit v1.2.1
From e2a093ff0dbfa4c5d99f25241cf33325e9691d91 Mon Sep 17 00:00:00 2001
From: Ana Rey <anarey@gmail.com>
Date: Wed, 6 Aug 2014 13:52:49 +0200
Subject: netfilter: nft_meta: add pkttype support
Add pkttype support for ip, ipv6 and inet families of tables.
This allows you to fetch the meta packet type based on the link layer
information. The loopback traffic is a special case, the packet type
is guessed from the network layer header.
No special handling for bridge and arp since we're not going to see
such traffic in the loopback interface.
Joint work with Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_tables.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 801bdd1e56e3..98144cdd8986 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -571,6 +571,7 @@ enum nft_exthdr_attributes {
* @NFT_META_L4PROTO: layer 4 protocol number
* @NFT_META_BRI_IIFNAME: packet input bridge interface name
* @NFT_META_BRI_OIFNAME: packet output bridge interface name
+ * @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
*/
enum nft_meta_keys {
NFT_META_LEN,
@@ -592,6 +593,7 @@ enum nft_meta_keys {
NFT_META_L4PROTO,
NFT_META_BRI_IIFNAME,
NFT_META_BRI_OIFNAME,
+ NFT_META_PKTTYPE,
};
/**
--
cgit v1.2.1
From afc5be3079796b024823bad42dc5ebf716453575 Mon Sep 17 00:00:00 2001
From: Ana Rey <anarey@gmail.com>
Date: Sun, 24 Aug 2014 14:08:36 +0200
Subject: netfilter: nft_meta: Add cpu attribute support
Add cpu support to meta expresion.
This allows you to match packets with cpu number.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_tables.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 98144cdd8986..c9b6f00a3fb7 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -572,6 +572,7 @@ enum nft_exthdr_attributes {
* @NFT_META_BRI_IIFNAME: packet input bridge interface name
* @NFT_META_BRI_OIFNAME: packet output bridge interface name
* @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
+ * @NFT_META_CPU: cpu id through smp_processor_id()
*/
enum nft_meta_keys {
NFT_META_LEN,
@@ -594,6 +595,7 @@ enum nft_meta_keys {
NFT_META_BRI_IIFNAME,
NFT_META_BRI_OIFNAME,
NFT_META_PKTTYPE,
+ NFT_META_CPU,
};
/**
--
cgit v1.2.1
From 1b05756c48ea07ced9604ef01d11194d936da163 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Tue, 5 Aug 2014 22:02:34 +0200
Subject: netfilter: ipset: Fix warn: integer overflows 'sizeof(*map) + size *
set->dsize'
Dan Carpenter reported that the static checker emits the warning
net/netfilter/ipset/ip_set_list_set.c:600 init_list_set()
warn: integer overflows 'sizeof(*map) + size * set->dsize'
Limit the maximal number of elements in list type of sets.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
include/linux/netfilter/ipset/ip_set_list.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/netfilter/ipset/ip_set_list.h b/include/linux/netfilter/ipset/ip_set_list.h
index 68c2aea897f5..fe2622a00151 100644
--- a/include/linux/netfilter/ipset/ip_set_list.h
+++ b/include/linux/netfilter/ipset/ip_set_list.h
@@ -6,5 +6,6 @@
#define IP_SET_LIST_DEFAULT_SIZE 8
#define IP_SET_LIST_MIN_SIZE 4
+#define IP_SET_LIST_MAX_SIZE 65536
#endif /* __IP_SET_LIST_H */
--
cgit v1.2.1
From 573e8fca255a27e3573b51f9b183d62641c47a3d Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Fri, 22 Aug 2014 13:33:47 -0700
Subject: net: skb_gro_checksum_* functions
Add skb_gro_checksum_validate, skb_gro_checksum_validate_zero_check,
and skb_gro_checksum_simple_validate, and __skb_gro_checksum_complete.
These are the cognates of the normal checksum functions but are used
in the gro_receive path and operate on GRO related fields in sk_buffs.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 76 +++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 74 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 7e2b0b8b5cd7..eb73444e1bd0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1883,7 +1883,13 @@ struct napi_gro_cb {
u16 proto;
/* Used in udp_gro_receive */
- u16 udp_mark;
+ u8 udp_mark:1;
+
+ /* GRO checksum is valid */
+ u8 csum_valid:1;
+
+ /* Number encapsulation layers crossed */
+ u8 encapsulation;
/* used to support CHECKSUM_COMPLETE for tunneling protocols */
__wsum csum;
@@ -2154,11 +2160,77 @@ static inline void *skb_gro_network_header(struct sk_buff *skb)
static inline void skb_gro_postpull_rcsum(struct sk_buff *skb,
const void *start, unsigned int len)
{
- if (skb->ip_summed == CHECKSUM_COMPLETE)
+ if (NAPI_GRO_CB(skb)->csum_valid)
NAPI_GRO_CB(skb)->csum = csum_sub(NAPI_GRO_CB(skb)->csum,
csum_partial(start, len, 0));
}
+/* GRO checksum functions. These are logical equivalents of the normal
+ * checksum functions (in skbuff.h) except that they operate on the GRO
+ * offsets and fields in sk_buff.
+ */
+
+__sum16 __skb_gro_checksum_complete(struct sk_buff *skb);
+
+static inline bool __skb_gro_checksum_validate_needed(struct sk_buff *skb,
+ bool zero_okay,
+ __sum16 check)
+{
+ return (skb->ip_summed != CHECKSUM_PARTIAL &&
+ (skb->ip_summed != CHECKSUM_UNNECESSARY ||
+ (NAPI_GRO_CB(skb)->encapsulation > skb->encapsulation)) &&
+ (!zero_okay || check));
+}
+
+static inline __sum16 __skb_gro_checksum_validate_complete(struct sk_buff *skb,
+ __wsum psum)
+{
+ if (NAPI_GRO_CB(skb)->csum_valid &&
+ !csum_fold(csum_add(psum, NAPI_GRO_CB(skb)->csum)))
+ return 0;
+
+ NAPI_GRO_CB(skb)->csum = psum;
+
+ return __skb_gro_checksum_complete(skb);
+}
+
+/* Update skb for CHECKSUM_UNNECESSARY when we verified a top level
+ * checksum or an encapsulated one during GRO. This saves work
+ * if we fallback to normal path with the packet.
+ */
+static inline void skb_gro_incr_csum_unnecessary(struct sk_buff *skb)
+{
+ if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ if (NAPI_GRO_CB(skb)->encapsulation)
+ skb->encapsulation = 1;
+ } else if (skb->ip_summed != CHECKSUM_PARTIAL) {
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->encapsulation = 0;
+ }
+}
+
+#define __skb_gro_checksum_validate(skb, proto, zero_okay, check, \
+ compute_pseudo) \
+({ \
+ __sum16 __ret = 0; \
+ if (__skb_gro_checksum_validate_needed(skb, zero_okay, check)) \
+ __ret = __skb_gro_checksum_validate_complete(skb, \
+ compute_pseudo(skb, proto)); \
+ if (!__ret) \
+ skb_gro_incr_csum_unnecessary(skb); \
+ __ret; \
+})
+
+#define skb_gro_checksum_validate(skb, proto, compute_pseudo) \
+ __skb_gro_checksum_validate(skb, proto, false, 0, compute_pseudo)
+
+#define skb_gro_checksum_validate_zero_check(skb, proto, check, \
+ compute_pseudo) \
+ __skb_gro_checksum_validate(skb, proto, true, check, compute_pseudo)
+
+#define skb_gro_checksum_simple_validate(skb) \
+ __skb_gro_checksum_validate(skb, 0, false, 0, null_compute_pseudo)
+
static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type,
const void *daddr, const void *saddr,
--
cgit v1.2.1
From 1933a7852ce6a81349855431b25122d7666bbfca Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Fri, 22 Aug 2014 13:34:04 -0700
Subject: net: add gro_compute_pseudo functions
Add inet_gro_compute_pseudo and ip6_gro_compute_pseudo. These are
the logical equivalents of inet_compute_pseudo and ip6_compute_pseudo
for GRO path. The IP header is taken from skb_gro_network_header.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip.h | 8 ++++++++
include/net/ip6_checksum.h | 8 ++++++++
2 files changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/net/ip.h b/include/net/ip.h
index db4a771b9ef3..c8fd6112bd0b 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -364,6 +364,14 @@ static inline void inet_set_txhash(struct sock *sk)
sk->sk_txhash = flow_hash_from_keys(&keys);
}
+static inline __wsum inet_gro_compute_pseudo(struct sk_buff *skb, int proto)
+{
+ const struct iphdr *iph = skb_gro_network_header(skb);
+
+ return csum_tcpudp_nofold(iph->saddr, iph->daddr,
+ skb_gro_len(skb), proto, 0);
+}
+
/*
* Map a multicast IP onto multicast MAC for type ethernet.
*/
diff --git a/include/net/ip6_checksum.h b/include/net/ip6_checksum.h
index 55236cb71174..1a49b73f7f6e 100644
--- a/include/net/ip6_checksum.h
+++ b/include/net/ip6_checksum.h
@@ -48,6 +48,14 @@ static inline __wsum ip6_compute_pseudo(struct sk_buff *skb, int proto)
skb->len, proto, 0));
}
+static inline __wsum ip6_gro_compute_pseudo(struct sk_buff *skb, int proto)
+{
+ const struct ipv6hdr *iph = skb_gro_network_header(skb);
+
+ return ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr,
+ skb_gro_len(skb), proto, 0));
+}
+
static __inline__ __sum16 tcp_v6_check(int len,
const struct in6_addr *saddr,
const struct in6_addr *daddr,
--
cgit v1.2.1
From 57c67ff4bd92af634f7c91c40eb02a96dd785dda Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Fri, 22 Aug 2014 13:34:44 -0700
Subject: udp: additional GRO support
Implement GRO for UDPv6. Add UDP checksum verification in gro_receive
for both UDP4 and UDP6 calling skb_gro_checksum_validate_zero_check.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/udp.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/net/udp.h b/include/net/udp.h
index 70f941368ace..16f4e80f0519 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -158,6 +158,24 @@ static inline __sum16 udp_v4_check(int len, __be32 saddr,
void udp_set_csum(bool nocheck, struct sk_buff *skb,
__be32 saddr, __be32 daddr, int len);
+struct sk_buff **udp_gro_receive(struct sk_buff **head, struct sk_buff *skb,
+ struct udphdr *uh);
+int udp_gro_complete(struct sk_buff *skb, int nhoff);
+
+static inline struct udphdr *udp_gro_udphdr(struct sk_buff *skb)
+{
+ struct udphdr *uh;
+ unsigned int hlen, off;
+
+ off = skb_gro_offset(skb);
+ hlen = off + sizeof(*uh);
+ uh = skb_gro_header_fast(skb, off);
+ if (skb_gro_header_hard(skb, hlen))
+ uh = skb_gro_header_slow(skb, hlen, off);
+
+ return uh;
+}
+
/* hash routines shared between UDPv4/6 and UDP-Litev4/6 */
static inline void udp_lib_hash(struct sock *sk)
{
--
cgit v1.2.1
From a98406e22c12e514bac28fec0a49dc793edaf3a8 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Sat, 23 Aug 2014 17:03:28 +0200
Subject: random32: improvements to prandom_bytes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This patch addresses a couple of minor items, mostly addesssing
prandom_bytes(): 1) prandom_bytes{,_state}() should use size_t
for length arguments, 2) We can use put_unaligned() when filling
the array instead of open coding it [ perhaps some archs will
further benefit from their own arch specific implementation when
GCC cannot make up for it ], 3) Fix a typo, 4) Better use unsigned
int as type for getting the arch seed, 5) Make use of
prandom_u32_max() for timer slack.
Regarding the change to put_unaligned(), callers of prandom_bytes()
which internally invoke prandom_bytes_state(), don't bother as
they expect the array to be filled randomly and don't have any
control of the internal state what-so-ever (that's also why we
have periodic reseeding there, etc), so they really don't care.
Now for the direct callers of prandom_bytes_state(), which
are solely located in test cases for MTD devices, that is,
drivers/mtd/tests/{oobtest.c,pagetest.c,subpagetest.c}:
These tests basically fill a test write-vector through
prandom_bytes_state() with an a-priori defined seed each time
and write that to a MTD device. Later on, they set up a read-vector
and read back that blocks from the device. So in the verification
phase, the write-vector is being re-setup [ so same seed and
prandom_bytes_state() called ], and then memcmp()'ed against the
read-vector to check if the data is the same.
Akinobu, Lothar and I also tested this patch and it runs through
the 3 relevant MTD test cases w/o any errors on the nandsim device
(simulator for MTD devs) for x86_64, ppc64, ARM (i.MX28, i.MX53
and i.MX6):
# modprobe nandsim first_id_byte=0x20 second_id_byte=0xac \
third_id_byte=0x00 fourth_id_byte=0x15
# modprobe mtd_oobtest dev=0
# modprobe mtd_pagetest dev=0
# modprobe mtd_subpagetest dev=0
We also don't have any users depending directly on a particular
result of the PRNG (except the PRNG self-test itself), and that's
just fine as it e.g. allowed us easily to do things like upgrading
from taus88 to taus113.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Tested-by: Akinobu Mita <akinobu.mita@gmail.com>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/random.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/random.h b/include/linux/random.h
index 57fbbffd77a0..b05856e16b75 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -26,7 +26,7 @@ unsigned int get_random_int(void);
unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
u32 prandom_u32(void);
-void prandom_bytes(void *buf, int nbytes);
+void prandom_bytes(void *buf, size_t nbytes);
void prandom_seed(u32 seed);
void prandom_reseed_late(void);
@@ -35,7 +35,7 @@ struct rnd_state {
};
u32 prandom_u32_state(struct rnd_state *state);
-void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
+void prandom_bytes_state(struct rnd_state *state, void *buf, size_t nbytes);
/**
* prandom_u32_max - returns a pseudo-random number in interval [0, ep_ro)
--
cgit v1.2.1
From 4798248e4e023170e937a65a1d30fcc52496dd42 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 22 Aug 2014 16:21:53 -0700
Subject: net: Add ops->ndo_xmit_flush()
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index eb73444e1bd0..220c50984688 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -782,6 +782,19 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
* (can also return NETDEV_TX_LOCKED iff NETIF_F_LLTX)
* Required can not be NULL.
*
+ * void (*ndo_xmit_flush)(struct net_device *dev, u16 queue);
+ * A driver implements this function when it wishes to support
+ * deferred TX queue flushing. The idea is that the expensive
+ * operation to trigger TX queue processing can be done after
+ * N calls to ndo_start_xmit rather than being done every single
+ * time. In this regime ndo_start_xmit will be called one or more
+ * times, and then a final ndo_xmit_flush call will be made to
+ * have the driver tell the device about the new pending TX queue
+ * entries. The kernel keeps track of which queues need flushing
+ * by monitoring skb->queue_mapping of the packets it submits to
+ * ndo_start_xmit. This is the queue value that will be passed
+ * to ndo_xmit_flush.
+ *
* u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb,
* void *accel_priv, select_queue_fallback_t fallback);
* Called to decide which queue to when device supports multiple
@@ -1005,6 +1018,7 @@ struct net_device_ops {
int (*ndo_stop)(struct net_device *dev);
netdev_tx_t (*ndo_start_xmit) (struct sk_buff *skb,
struct net_device *dev);
+ void (*ndo_xmit_flush)(struct net_device *dev, u16 queue);
u16 (*ndo_select_queue)(struct net_device *dev,
struct sk_buff *skb,
void *accel_priv,
@@ -3430,6 +3444,27 @@ int __init dev_proc_init(void);
#define dev_proc_init() 0
#endif
+static inline netdev_tx_t __netdev_start_xmit(const struct net_device_ops *ops,
+ struct sk_buff *skb, struct net_device *dev)
+{
+ netdev_tx_t ret;
+ u16 q;
+
+ q = skb->queue_mapping;
+ ret = ops->ndo_start_xmit(skb, dev);
+ if (dev_xmit_complete(ret) && ops->ndo_xmit_flush)
+ ops->ndo_xmit_flush(dev, q);
+
+ return ret;
+}
+
+static inline netdev_tx_t netdev_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ const struct net_device_ops *ops = dev->netdev_ops;
+
+ return __netdev_start_xmit(ops, skb, dev);
+}
+
int netdev_class_create_file_ns(struct class_attribute *class_attr,
const void *ns);
void netdev_class_remove_file_ns(struct class_attribute *class_attr,
--
cgit v1.2.1
From fa71f32b5de2be1644ee671ddbe211d79be7847f Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Tue, 29 Jul 2014 17:14:21 +0200
Subject: HID: uhid: add ABI compatible UHID_GET_REPORT replacing UHID_FEATURE
The old hdev->hid_get_raw_report() was broken by design. It was never
clear what kind of HW request it should trigger. Benjamin fixed that with
the core HID cleanup, though we never really adjusted uhid.
Unfortunately, our old UHID_FEATURE command was modelled around the broken
hid_get_raw_report(). We converted it silently to the new GET_REPORT and
nothing broke. Make this explicit by renaming UHID_FEATURE to
UHID_GET_REPORT and UHID_FEATURE_ANSWER to UHID_GET_REPORT_REPLY.
Note that this is 100% ABI compatible to UHID_FEATURE. This is just a
rename. But we have to keep the old definitions around to not break API.
>From now on, UHID_GET_REPORT must trigger a GET_REPORT request on the
user-space hardware layer. All the ambiguity due to the weird "feature"
name should be gone now.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/uapi/linux/uhid.h | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/uhid.h b/include/uapi/linux/uhid.h
index 1e3b09c191cd..0a08f2bbe642 100644
--- a/include/uapi/linux/uhid.h
+++ b/include/uapi/linux/uhid.h
@@ -33,8 +33,10 @@ enum uhid_event_type {
UHID_OUTPUT,
UHID_OUTPUT_EV, /* obsolete! */
UHID_INPUT,
- UHID_FEATURE,
- UHID_FEATURE_ANSWER,
+ UHID_FEATURE, /* obsolete! use UHID_GET_REPORT */
+ UHID_GET_REPORT = UHID_FEATURE,
+ UHID_FEATURE_ANSWER, /* obsolete! use UHID_GET_REPORT_REPLY */
+ UHID_GET_REPORT_REPLY = UHID_FEATURE_ANSWER,
UHID_CREATE2,
UHID_INPUT2,
};
@@ -98,12 +100,20 @@ struct uhid_output_ev_req {
__s32 value;
} __attribute__((__packed__));
+/* Obsolete! Kernel uses ABI compatible UHID_GET_REPORT. */
struct uhid_feature_req {
__u32 id;
__u8 rnum;
__u8 rtype;
} __attribute__((__packed__));
+struct uhid_get_report_req {
+ __u32 id;
+ __u8 rnum;
+ __u8 rtype;
+} __attribute__((__packed__));
+
+/* Obsolete! Use ABI compatible UHID_GET_REPORT_REPLY. */
struct uhid_feature_answer_req {
__u32 id;
__u16 err;
@@ -111,6 +121,13 @@ struct uhid_feature_answer_req {
__u8 data[UHID_DATA_MAX];
} __attribute__((__packed__));
+struct uhid_get_report_reply_req {
+ __u32 id;
+ __u16 err;
+ __u16 size;
+ __u8 data[UHID_DATA_MAX];
+} __attribute__((__packed__));
+
struct uhid_event {
__u32 type;
@@ -120,7 +137,9 @@ struct uhid_event {
struct uhid_output_req output;
struct uhid_output_ev_req output_ev;
struct uhid_feature_req feature;
+ struct uhid_get_report_req get_report;
struct uhid_feature_answer_req feature_answer;
+ struct uhid_get_report_reply_req get_report_reply;
struct uhid_create2_req create2;
struct uhid_input2_req input2;
} u;
--
cgit v1.2.1
From 50598e7055d0d8610732e7eb2c84cbc3bc7db294 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Tue, 29 Jul 2014 17:14:22 +0200
Subject: HID: uhid: keep legacy definitions at the bottom of uhid.h
Instead of inlining the legacy definitions into the main part of uhid.h,
keep them at the bottom now. This way, the API is much easier to read and
legacy requests can be looked up at a separate place.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/uapi/linux/uhid.h | 101 ++++++++++++++++++++++++++++------------------
1 file changed, 62 insertions(+), 39 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/uhid.h b/include/uapi/linux/uhid.h
index 0a08f2bbe642..116536eeae62 100644
--- a/include/uapi/linux/uhid.h
+++ b/include/uapi/linux/uhid.h
@@ -24,37 +24,21 @@
#include <linux/hid.h>
enum uhid_event_type {
- UHID_CREATE,
+ __UHID_LEGACY_CREATE,
UHID_DESTROY,
UHID_START,
UHID_STOP,
UHID_OPEN,
UHID_CLOSE,
UHID_OUTPUT,
- UHID_OUTPUT_EV, /* obsolete! */
- UHID_INPUT,
- UHID_FEATURE, /* obsolete! use UHID_GET_REPORT */
- UHID_GET_REPORT = UHID_FEATURE,
- UHID_FEATURE_ANSWER, /* obsolete! use UHID_GET_REPORT_REPLY */
- UHID_GET_REPORT_REPLY = UHID_FEATURE_ANSWER,
+ __UHID_LEGACY_OUTPUT_EV,
+ __UHID_LEGACY_INPUT,
+ UHID_GET_REPORT,
+ UHID_GET_REPORT_REPLY,
UHID_CREATE2,
UHID_INPUT2,
};
-struct uhid_create_req {
- __u8 name[128];
- __u8 phys[64];
- __u8 uniq[64];
- __u8 __user *rd_data;
- __u16 rd_size;
-
- __u16 bus;
- __u32 vendor;
- __u32 product;
- __u32 version;
- __u32 country;
-} __attribute__((__packed__));
-
struct uhid_create2_req {
__u8 name[128];
__u8 phys[64];
@@ -76,24 +60,67 @@ enum uhid_report_type {
UHID_INPUT_REPORT,
};
-struct uhid_input_req {
+struct uhid_input2_req {
+ __u16 size;
+ __u8 data[UHID_DATA_MAX];
+} __attribute__((__packed__));
+
+struct uhid_output_req {
__u8 data[UHID_DATA_MAX];
__u16 size;
+ __u8 rtype;
} __attribute__((__packed__));
-struct uhid_input2_req {
+struct uhid_get_report_req {
+ __u32 id;
+ __u8 rnum;
+ __u8 rtype;
+} __attribute__((__packed__));
+
+struct uhid_get_report_reply_req {
+ __u32 id;
+ __u16 err;
__u16 size;
__u8 data[UHID_DATA_MAX];
} __attribute__((__packed__));
-struct uhid_output_req {
+/*
+ * Compat Layer
+ * All these commands and requests are obsolete. You should avoid using them in
+ * new code. We support them for backwards-compatibility, but you might not get
+ * access to new feature in case you use them.
+ */
+
+enum uhid_legacy_event_type {
+ UHID_CREATE = __UHID_LEGACY_CREATE,
+ UHID_OUTPUT_EV = __UHID_LEGACY_OUTPUT_EV,
+ UHID_INPUT = __UHID_LEGACY_INPUT,
+ UHID_FEATURE = UHID_GET_REPORT,
+ UHID_FEATURE_ANSWER = UHID_GET_REPORT_REPLY,
+};
+
+/* Obsolete! Use UHID_CREATE2. */
+struct uhid_create_req {
+ __u8 name[128];
+ __u8 phys[64];
+ __u8 uniq[64];
+ __u8 __user *rd_data;
+ __u16 rd_size;
+
+ __u16 bus;
+ __u32 vendor;
+ __u32 product;
+ __u32 version;
+ __u32 country;
+} __attribute__((__packed__));
+
+/* Obsolete! Use UHID_INPUT2. */
+struct uhid_input_req {
__u8 data[UHID_DATA_MAX];
__u16 size;
- __u8 rtype;
} __attribute__((__packed__));
-/* Obsolete! Newer kernels will no longer send these events but instead convert
- * it into raw output reports via UHID_OUTPUT. */
+/* Obsolete! Kernel uses UHID_OUTPUT exclusively now. */
struct uhid_output_ev_req {
__u16 type;
__u16 code;
@@ -107,12 +134,6 @@ struct uhid_feature_req {
__u8 rtype;
} __attribute__((__packed__));
-struct uhid_get_report_req {
- __u32 id;
- __u8 rnum;
- __u8 rtype;
-} __attribute__((__packed__));
-
/* Obsolete! Use ABI compatible UHID_GET_REPORT_REPLY. */
struct uhid_feature_answer_req {
__u32 id;
@@ -121,12 +142,14 @@ struct uhid_feature_answer_req {
__u8 data[UHID_DATA_MAX];
} __attribute__((__packed__));
-struct uhid_get_report_reply_req {
- __u32 id;
- __u16 err;
- __u16 size;
- __u8 data[UHID_DATA_MAX];
-} __attribute__((__packed__));
+/*
+ * UHID Events
+ * All UHID events from and to the kernel are encoded as "struct uhid_event".
+ * The "type" field contains a UHID_* type identifier. All payload depends on
+ * that type and can be accessed via ev->u.XYZ accordingly.
+ * If user-space writes short events, they're extended with 0s by the kernel. If
+ * the kernel writes short events, user-space shall extend them with 0s.
+ */
struct uhid_event {
__u32 type;
--
cgit v1.2.1
From 11c221553080408b203a00b91ad5f647dfb218d1 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Tue, 29 Jul 2014 17:14:24 +0200
Subject: HID: uhid: implement SET_REPORT
We so far lacked support for hid_hw_raw_request(..., HID_REQ_SET_REPORT);
Add support for it and simply forward the request to user-space. Note that
SET_REPORT is synchronous, just like GET_REPORT, even though it does not
provide any data back besides an error code.
If a transport layer does SET_REPORT asynchronously, they can just ACK it
immediately by writing an uhid_set_report_reply to uhid.
This patch re-uses the synchronous uhid-report infrastructure to query
user-space. Note that this means you cannot run SET_REPORT and GET_REPORT
in parallel. However, that has always been a restriction of HID and due to
its blocking nature, this is just fine. Maybe some future transport layer
supports parallel requests (very unlikely), however, until then lets not
over-complicate things and avoid request-lookup-tables.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/uapi/linux/uhid.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/uhid.h b/include/uapi/linux/uhid.h
index 116536eeae62..62aac0e4edf3 100644
--- a/include/uapi/linux/uhid.h
+++ b/include/uapi/linux/uhid.h
@@ -37,6 +37,8 @@ enum uhid_event_type {
UHID_GET_REPORT_REPLY,
UHID_CREATE2,
UHID_INPUT2,
+ UHID_SET_REPORT,
+ UHID_SET_REPORT_REPLY,
};
struct uhid_create2_req {
@@ -84,6 +86,19 @@ struct uhid_get_report_reply_req {
__u8 data[UHID_DATA_MAX];
} __attribute__((__packed__));
+struct uhid_set_report_req {
+ __u32 id;
+ __u8 rnum;
+ __u8 rtype;
+ __u16 size;
+ __u8 data[UHID_DATA_MAX];
+} __attribute__((__packed__));
+
+struct uhid_set_report_reply_req {
+ __u32 id;
+ __u16 err;
+} __attribute__((__packed__));
+
/*
* Compat Layer
* All these commands and requests are obsolete. You should avoid using them in
@@ -165,6 +180,8 @@ struct uhid_event {
struct uhid_get_report_reply_req get_report_reply;
struct uhid_create2_req create2;
struct uhid_input2_req input2;
+ struct uhid_set_report_req set_report;
+ struct uhid_set_report_reply_req set_report_reply;
} u;
} __attribute__((__packed__));
--
cgit v1.2.1
From c2b2f16c5c62583d4f8904e44c4b30c94a01eaf1 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Tue, 29 Jul 2014 17:14:25 +0200
Subject: HID: uhid: report to user-space whether reports are numbered
This makes UHID_START include a "dev_flags" field that describes details
of the hid-device in the kernel. The first flags we introduce describe
whether a given report-type uses numbered reports. This is useful for
transport layers that force report-numbers and therefore might have to
prefix kernel-provided HID-messages with the report-number.
Currently, only HoG needs this and the spec only talks about "global
report numbers". That is, it's a global boolean not a per-type boolean.
However, given the quirks we already have in kernel-space, a per-type
value seems much more appropriate.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/uapi/linux/uhid.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/uhid.h b/include/uapi/linux/uhid.h
index 62aac0e4edf3..aaa86d6bd1dd 100644
--- a/include/uapi/linux/uhid.h
+++ b/include/uapi/linux/uhid.h
@@ -54,6 +54,16 @@ struct uhid_create2_req {
__u8 rd_data[HID_MAX_DESCRIPTOR_SIZE];
} __attribute__((__packed__));
+enum uhid_dev_flag {
+ UHID_DEV_NUMBERED_FEATURE_REPORTS = (1ULL << 0),
+ UHID_DEV_NUMBERED_OUTPUT_REPORTS = (1ULL << 1),
+ UHID_DEV_NUMBERED_INPUT_REPORTS = (1ULL << 2),
+};
+
+struct uhid_start_req {
+ __u64 dev_flags;
+};
+
#define UHID_DATA_MAX 4096
enum uhid_report_type {
@@ -182,6 +192,7 @@ struct uhid_event {
struct uhid_input2_req input2;
struct uhid_set_report_req set_report;
struct uhid_set_report_reply_req set_report_reply;
+ struct uhid_start_req start;
} u;
} __attribute__((__packed__));
--
cgit v1.2.1
From 2ee507c472939db4b146d545352b8a7c79ef47f8 Mon Sep 17 00:00:00 2001
From: Tim Chen <tim.c.chen@linux.intel.com>
Date: Thu, 31 Jul 2014 10:29:48 -0700
Subject: sched: Add function single_task_running to let a task check if it is
the only task running on a cpu
This function will help an async task processing batched jobs from
workqueue decide if it wants to keep processing on more chunks of batched
work that can be delayed, or to accumulate more work for more efficient
batched processing later.
If no other tasks are running on the cpu, the batching process can take
advantgae of the available cpu cycles to a make decision to continue
processing the existing accumulated work to minimize delay,
otherwise it will yield.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/linux/sched.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5c2c885ee52b..e6d2c056d8e0 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -167,6 +167,7 @@ extern int nr_threads;
DECLARE_PER_CPU(unsigned long, process_counts);
extern int nr_processes(void);
extern unsigned long nr_running(void);
+extern bool single_task_running(void);
extern unsigned long nr_iowait(void);
extern unsigned long nr_iowait_cpu(int cpu);
extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
--
cgit v1.2.1
From 1e65b81a90df50bf450193065cc9073b706b8dda Mon Sep 17 00:00:00 2001
From: Tim Chen <tim.c.chen@linux.intel.com>
Date: Thu, 31 Jul 2014 10:29:51 -0700
Subject: crypto: sha-mb - multibuffer crypto infrastructure
This patch introduces the multi-buffer crypto daemon which is responsible
for submitting crypto jobs in a work queue to the responsible multi-buffer
crypto algorithm. The idea of the multi-buffer algorihtm is to put
data streams from multiple jobs in a wide (AVX2) register and then
take advantage of SIMD instructions to do crypto computation on several
buffers simultaneously.
The multi-buffer crypto daemon is also responsbile for flushing the
remaining buffers to complete the computation if no new buffers arrive
for a while.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/internal/hash.h | 9 ++++
include/crypto/mcryptd.h | 112 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 121 insertions(+)
create mode 100644 include/crypto/mcryptd.h
(limited to 'include')
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 9b6f32a6cad1..3b4af1d7c7e9 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -117,6 +117,15 @@ int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
+int shash_ahash_mcryptd_update(struct ahash_request *req,
+ struct shash_desc *desc);
+int shash_ahash_mcryptd_final(struct ahash_request *req,
+ struct shash_desc *desc);
+int shash_ahash_mcryptd_finup(struct ahash_request *req,
+ struct shash_desc *desc);
+int shash_ahash_mcryptd_digest(struct ahash_request *req,
+ struct shash_desc *desc);
+
int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
diff --git a/include/crypto/mcryptd.h b/include/crypto/mcryptd.h
new file mode 100644
index 000000000000..c23ee1f7ee80
--- /dev/null
+++ b/include/crypto/mcryptd.h
@@ -0,0 +1,112 @@
+/*
+ * Software async multibuffer crypto daemon headers
+ *
+ * Author:
+ * Tim Chen <tim.c.chen@linux.intel.com>
+ *
+ * Copyright (c) 2014, Intel Corporation.
+ */
+
+#ifndef _CRYPTO_MCRYPT_H
+#define _CRYPTO_MCRYPT_H
+
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <crypto/hash.h>
+
+struct mcryptd_ahash {
+ struct crypto_ahash base;
+};
+
+static inline struct mcryptd_ahash *__mcryptd_ahash_cast(
+ struct crypto_ahash *tfm)
+{
+ return (struct mcryptd_ahash *)tfm;
+}
+
+struct mcryptd_cpu_queue {
+ struct crypto_queue queue;
+ struct work_struct work;
+};
+
+struct mcryptd_queue {
+ struct mcryptd_cpu_queue __percpu *cpu_queue;
+};
+
+struct mcryptd_instance_ctx {
+ struct crypto_spawn spawn;
+ struct mcryptd_queue *queue;
+};
+
+struct mcryptd_hash_ctx {
+ struct crypto_shash *child;
+ struct mcryptd_alg_state *alg_state;
+};
+
+struct mcryptd_tag {
+ /* seq number of request */
+ unsigned seq_num;
+ /* arrival time of request */
+ unsigned long arrival;
+ unsigned long expire;
+ int cpu;
+};
+
+struct mcryptd_hash_request_ctx {
+ struct list_head waiter;
+ crypto_completion_t complete;
+ struct mcryptd_tag tag;
+ struct crypto_hash_walk walk;
+ u8 *out;
+ int flag;
+ struct shash_desc desc;
+};
+
+struct mcryptd_ahash *mcryptd_alloc_ahash(const char *alg_name,
+ u32 type, u32 mask);
+struct crypto_shash *mcryptd_ahash_child(struct mcryptd_ahash *tfm);
+struct shash_desc *mcryptd_shash_desc(struct ahash_request *req);
+void mcryptd_free_ahash(struct mcryptd_ahash *tfm);
+void mcryptd_flusher(struct work_struct *work);
+
+enum mcryptd_req_type {
+ MCRYPTD_NONE,
+ MCRYPTD_UPDATE,
+ MCRYPTD_FINUP,
+ MCRYPTD_DIGEST,
+ MCRYPTD_FINAL
+};
+
+struct mcryptd_alg_cstate {
+ unsigned long next_flush;
+ unsigned next_seq_num;
+ bool flusher_engaged;
+ struct delayed_work flush;
+ int cpu;
+ struct mcryptd_alg_state *alg_state;
+ void *mgr;
+ spinlock_t work_lock;
+ struct list_head work_list;
+ struct list_head flush_list;
+};
+
+struct mcryptd_alg_state {
+ struct mcryptd_alg_cstate __percpu *alg_cstate;
+ unsigned long (*flusher)(struct mcryptd_alg_cstate *cstate);
+};
+
+/* return delay in jiffies from current time */
+static inline unsigned long get_delay(unsigned long t)
+{
+ long delay;
+
+ delay = (long) t - (long) jiffies;
+ if (delay <= 0)
+ return 0;
+ else
+ return (unsigned long) delay;
+}
+
+void mcryptd_arm_flusher(struct mcryptd_alg_cstate *cstate, unsigned long delay);
+
+#endif
--
cgit v1.2.1
From 05c81ccd9087d238c10b234eadb55632742e5518 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Sun, 17 Aug 2014 17:41:10 +0200
Subject: crypto: drbg - remove configuration of fixed values
SP800-90A mandates several hard-coded values. The old drbg_cores allows
the setting of these values per DRBG implementation. However, due to the
hard requirement of SP800-90A, these values are now returned globally
for each DRBG.
The ability to set such values per DRBG is therefore removed.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/drbg.h | 19 ++++++-------------
1 file changed, 6 insertions(+), 13 deletions(-)
(limited to 'include')
diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h
index 831d786976c5..3d8e73a1a1c7 100644
--- a/include/crypto/drbg.h
+++ b/include/crypto/drbg.h
@@ -82,15 +82,6 @@ typedef uint32_t drbg_flag_t;
struct drbg_core {
drbg_flag_t flags; /* flags for the cipher */
__u8 statelen; /* maximum state length */
- /*
- * maximum length of personalization string or additional input
- * string -- exponent for base 2
- */
- __u8 max_addtllen;
- /* maximum bits per RNG request -- exponent for base 2*/
- __u8 max_bits;
- /* maximum number of requests -- exponent for base 2 */
- __u8 max_req;
__u8 blocklen_bytes; /* block size of output in bytes */
char cra_name[CRYPTO_MAX_ALG_NAME]; /* mapping to kernel crypto API */
/* kernel crypto API backend cipher name */
@@ -156,18 +147,20 @@ static inline __u8 drbg_keylen(struct drbg_state *drbg)
static inline size_t drbg_max_request_bytes(struct drbg_state *drbg)
{
- /* max_bits is in bits, but buflen is in bytes */
- return (1 << (drbg->core->max_bits - 3));
+ /* SP800-90A requires the limit 2**19 bits, but we return bytes */
+ return (1 << 16);
}
static inline size_t drbg_max_addtl(struct drbg_state *drbg)
{
- return (1UL<<(drbg->core->max_addtllen));
+ /* SP800-90A requires 2**35 bytes additional info str / pers str */
+ return (1UL<<35);
}
static inline size_t drbg_max_requests(struct drbg_state *drbg)
{
- return (1UL<<(drbg->core->max_req));
+ /* SP800-90A requires 2**48 maximum requests before reseeding */
+ return (1UL<<48);
}
/*
--
cgit v1.2.1
From 48ea526a6877d605c961aa37fae33f3227b29424 Mon Sep 17 00:00:00 2001
From: Amir Vadai <amirv@mellanox.com>
Date: Mon, 25 Aug 2014 16:06:53 +0300
Subject: net/mlx4: Use is_kdump_kernel() to detect kdump kernel
Use is_kdump_kernel() to detect kdump kernel, instead of reset_devices.
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 071f6b234604..783dd099abd1 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -38,6 +38,7 @@
#include <linux/completion.h>
#include <linux/radix-tree.h>
#include <linux/cpu_rmap.h>
+#include <linux/crash_dump.h>
#include <linux/atomic.h>
@@ -1275,7 +1276,7 @@ int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr,
/* Returns true if running in low memory profile (kdump kernel) */
static inline bool mlx4_low_memory_profile(void)
{
- return reset_devices;
+ return is_kdump_kernel();
}
#endif /* MLX4_DEVICE_H */
--
cgit v1.2.1
From 0b725a2ca61bedc33a2a63d0451d528b268cf975 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 25 Aug 2014 15:51:53 -0700
Subject: net: Remove ndo_xmit_flush netdev operation, use signalling instead.
As reported by Jesper Dangaard Brouer, for high packet rates the
overhead of having another indirect call in the TX path is
non-trivial.
There is the indirect call itself, and then there is all of the
reloading of the state to refetch the tail pointer value and
then write the device register.
Move to a more passive scheme, which requires very light modifications
to the device drivers.
The signal is a new skb->xmit_more value, if it is non-zero it means
that more SKBs are pending to be transmitted on the same queue as the
current SKB. And therefore, the driver may elide the tail pointer
update.
Right now skb->xmit_more is always zero.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 25 ++-----------------------
include/linux/skbuff.h | 2 ++
2 files changed, 4 insertions(+), 23 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 220c50984688..039b23786c22 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -782,19 +782,6 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
* (can also return NETDEV_TX_LOCKED iff NETIF_F_LLTX)
* Required can not be NULL.
*
- * void (*ndo_xmit_flush)(struct net_device *dev, u16 queue);
- * A driver implements this function when it wishes to support
- * deferred TX queue flushing. The idea is that the expensive
- * operation to trigger TX queue processing can be done after
- * N calls to ndo_start_xmit rather than being done every single
- * time. In this regime ndo_start_xmit will be called one or more
- * times, and then a final ndo_xmit_flush call will be made to
- * have the driver tell the device about the new pending TX queue
- * entries. The kernel keeps track of which queues need flushing
- * by monitoring skb->queue_mapping of the packets it submits to
- * ndo_start_xmit. This is the queue value that will be passed
- * to ndo_xmit_flush.
- *
* u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb,
* void *accel_priv, select_queue_fallback_t fallback);
* Called to decide which queue to when device supports multiple
@@ -1018,7 +1005,6 @@ struct net_device_ops {
int (*ndo_stop)(struct net_device *dev);
netdev_tx_t (*ndo_start_xmit) (struct sk_buff *skb,
struct net_device *dev);
- void (*ndo_xmit_flush)(struct net_device *dev, u16 queue);
u16 (*ndo_select_queue)(struct net_device *dev,
struct sk_buff *skb,
void *accel_priv,
@@ -3447,15 +3433,8 @@ int __init dev_proc_init(void);
static inline netdev_tx_t __netdev_start_xmit(const struct net_device_ops *ops,
struct sk_buff *skb, struct net_device *dev)
{
- netdev_tx_t ret;
- u16 q;
-
- q = skb->queue_mapping;
- ret = ops->ndo_start_xmit(skb, dev);
- if (dev_xmit_complete(ret) && ops->ndo_xmit_flush)
- ops->ndo_xmit_flush(dev, q);
-
- return ret;
+ skb->xmit_more = 0;
+ return ops->ndo_start_xmit(skb, dev);
}
static inline netdev_tx_t netdev_start_xmit(struct sk_buff *skb, struct net_device *dev)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 18ddf9684a27..9b3802a197a8 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -452,6 +452,7 @@ static inline u32 skb_mstamp_us_delta(const struct skb_mstamp *t1,
* @tc_verd: traffic control verdict
* @hash: the packet hash
* @queue_mapping: Queue mapping for multiqueue devices
+ * @xmit_more: More SKBs are pending for this queue
* @ndisc_nodetype: router type (from link layer)
* @ooo_okay: allow the mapping of a socket to a queue to be changed
* @l4_hash: indicate hash is a canonical 4-tuple hash over transport
@@ -558,6 +559,7 @@ struct sk_buff {
__u16 queue_mapping;
kmemcheck_bitfield_begin(flags2);
+ __u8 xmit_more:1;
#ifdef CONFIG_IPV6_NDISC_NODETYPE
__u8 ndisc_nodetype:2;
#endif
--
cgit v1.2.1
From 453a940ea725d692282f9e66475cec0d1b1e12f2 Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Mon, 25 Aug 2014 17:03:47 -0700
Subject: net: make skb an optional parameter for__skb_flow_dissect()
Fixes: commit 690e36e726d00d2 (net: Allow raw buffers to be passed into the flow dissector)
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/flow_keys.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h
index 4040f63932c5..9a03f73c4974 100644
--- a/include/net/flow_keys.h
+++ b/include/net/flow_keys.h
@@ -28,10 +28,10 @@ struct flow_keys {
};
bool __skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow,
- void *data, int hlen);
+ void *data, __be16 proto, int nhoff, int hlen);
static inline bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow)
{
- return __skb_flow_dissect(skb, flow, NULL, 0);
+ return __skb_flow_dissect(skb, flow, NULL, 0, 0, 0);
}
__be32 __skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto,
void *data, int hlen_proto);
--
cgit v1.2.1
From b4bbb107d73bbc0d92c9ae7fd8e69580aa9381e7 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 27 Jun 2014 11:56:58 +0200
Subject: dma-mapping: Provide write-combine allocations
Provide an implementation for dma_{alloc,free,mmap}_writecombine() when
the architecture supports DMA attributes.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
include/asm-generic/dma-mapping-common.h | 8 --------
include/linux/dma-mapping.h | 26 ++++++++++++++++++++++++++
2 files changed, 26 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h
index de8bf89940f8..d137431bf26f 100644
--- a/include/asm-generic/dma-mapping-common.h
+++ b/include/asm-generic/dma-mapping-common.h
@@ -205,14 +205,6 @@ dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr,
#define dma_mmap_coherent(d, v, c, h, s) dma_mmap_attrs(d, v, c, h, s, NULL)
-static inline int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
- void *cpu_addr, dma_addr_t dma_addr, size_t size)
-{
- DEFINE_DMA_ATTRS(attrs);
- dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
- return dma_mmap_attrs(dev, vma, cpu_addr, dma_addr, size, &attrs);
-}
-
int
dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
void *cpu_addr, dma_addr_t dma_addr, size_t size);
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 931b70986272..d5d388160f42 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -263,6 +263,32 @@ struct dma_attrs;
#define dma_unmap_sg_attrs(dev, sgl, nents, dir, attrs) \
dma_unmap_sg(dev, sgl, nents, dir)
+#else
+static inline void *dma_alloc_writecombine(struct device *dev, size_t size,
+ dma_addr_t *dma_addr, gfp_t gfp)
+{
+ DEFINE_DMA_ATTRS(attrs);
+ dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
+ return dma_alloc_attrs(dev, size, dma_addr, gfp, &attrs);
+}
+
+static inline void dma_free_writecombine(struct device *dev, size_t size,
+ void *cpu_addr, dma_addr_t dma_addr)
+{
+ DEFINE_DMA_ATTRS(attrs);
+ dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
+ return dma_free_attrs(dev, size, cpu_addr, dma_addr, &attrs);
+}
+
+static inline int dma_mmap_writecombine(struct device *dev,
+ struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr,
+ size_t size)
+{
+ DEFINE_DMA_ATTRS(attrs);
+ dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
+ return dma_mmap_attrs(dev, vma, cpu_addr, dma_addr, size, &attrs);
+}
#endif /* CONFIG_HAVE_DMA_ATTRS */
#ifdef CONFIG_NEED_DMA_MAP_STATE
--
cgit v1.2.1
From 50d8a189013cef83eef771c45787cee68ecdf8fe Mon Sep 17 00:00:00 2001
From: "Raymond L. Rivera" <ray.l.rivera@gmail.com>
Date: Thu, 24 Jul 2014 02:39:45 -0700
Subject: linux/pagemap.h: Fixed a typo in a code comment.
Corrected a minor typo in a code comment where 'be' was missing.
Signed-off-by: Raymond L. Rivera <ray.l.rivera@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/pagemap.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index e1474ae18c88..bf657ff3208c 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -96,7 +96,7 @@ static inline void mapping_set_gfp_mask(struct address_space *m, gfp_t mask)
}
/*
- * The page cache can done in larger chunks than
+ * The page cache can be done in larger chunks than
* one page, because it allows for more efficient
* throughput (it can then be mapped into user
* space in smaller chunks for same flexibility).
--
cgit v1.2.1
From b9347aff91ce4789619168539f08202d8d6a1177 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Tue, 26 Aug 2014 10:29:45 +0200
Subject: crypto: drbg - fix maximum value checks on 32 bit systems
The maximum values for additional input string or generated blocks is
larger than 1<<32. To ensure a sensible value on 32 bit systems, return
SIZE_MAX on 32 bit systems. This value is lower than the maximum
allowed values defined in SP800-90A. The standard allow lower maximum
values, but not larger values.
SIZE_MAX - 1 is used for drbg_max_addtl to allow
drbg_healthcheck_sanity to check the enforcement of the variable
without wrapping.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/drbg.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h
index 3d8e73a1a1c7..5186f750c713 100644
--- a/include/crypto/drbg.h
+++ b/include/crypto/drbg.h
@@ -154,13 +154,26 @@ static inline size_t drbg_max_request_bytes(struct drbg_state *drbg)
static inline size_t drbg_max_addtl(struct drbg_state *drbg)
{
/* SP800-90A requires 2**35 bytes additional info str / pers str */
+#if (__BITS_PER_LONG == 32)
+ /*
+ * SP800-90A allows smaller maximum numbers to be returned -- we
+ * return SIZE_MAX - 1 to allow the verification of the enforcement
+ * of this value in drbg_healthcheck_sanity.
+ */
+ return (SIZE_MAX - 1);
+#else
return (1UL<<35);
+#endif
}
static inline size_t drbg_max_requests(struct drbg_state *drbg)
{
/* SP800-90A requires 2**48 maximum requests before reseeding */
+#if (__BITS_PER_LONG == 32)
+ return SIZE_MAX;
+#else
return (1UL<<48);
+#endif
}
/*
--
cgit v1.2.1
From 970fdfa89babb5a6f1a3d345e8cb54d92c1e3a8f Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Mon, 11 Aug 2014 03:29:57 -0700
Subject: cfg80211: remove @gfp parameter from cfg80211_rx_mgmt()
In the cfg80211_rx_mgmt(), parameter @gfp was used for the memory allocation.
But, memory get allocated under spin_lock_bh(), this implies atomic context.
So, one can't use GFP_KERNEL, only variants with no __GFP_WAIT. Actually, in all
occurrences GFP_ATOMIC is used (wil6210 use GFP_KERNEL by mistake),
and it should be this way or warning triggered in the memory allocation code.
Remove @gfp parameter as no actual choice exist, and use hard coded
GFP_ATOMIC for memory allocation.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 0a080c4de275..7b8dac3efe8f 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4412,7 +4412,6 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
* @buf: Management frame (header + body)
* @len: length of the frame data
* @flags: flags, as defined in enum nl80211_rxmgmt_flags
- * @gfp: context flags
*
* This function is called whenever an Action frame is received for a station
* mode interface, but is not processed in kernel.
@@ -4423,7 +4422,7 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
* driver is responsible for rejecting the frame.
*/
bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
- const u8 *buf, size_t len, u32 flags, gfp_t gfp);
+ const u8 *buf, size_t len, u32 flags);
/**
* cfg80211_mgmt_tx_status - notification of TX status for management frame
--
cgit v1.2.1
From 170fd0b1f6108b48df4369afa0ee29a83e922748 Mon Sep 17 00:00:00 2001
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Wed, 30 Jul 2014 14:36:18 +0300
Subject: ieee80211: Support parsing TPC report element in action frames
TPC report element is contained in spectrum management's tpc report
action frames and in radio measurement's link measurement report
action frames. Add a function which checks whether an action frame
contains this element. This may be needed by the drivers in order
to set the correct tx power value in these frames.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 63ab3873c5ed..8018c915ee63 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -838,6 +838,16 @@ enum ieee80211_vht_opmode_bits {
#define WLAN_SA_QUERY_TR_ID_LEN 2
+/**
+ * struct ieee80211_tpc_report_ie
+ *
+ * This structure refers to "TPC Report element"
+ */
+struct ieee80211_tpc_report_ie {
+ u8 tx_power;
+ u8 link_margin;
+} __packed;
+
struct ieee80211_mgmt {
__le16 frame_control;
__le16 duration;
@@ -973,6 +983,13 @@ struct ieee80211_mgmt {
u8 action_code;
u8 operating_mode;
} __packed vht_opmode_notif;
+ struct {
+ u8 action_code;
+ u8 dialog_token;
+ u8 tpc_elem_id;
+ u8 tpc_elem_length;
+ struct ieee80211_tpc_report_ie tpc;
+ } __packed tpc_report;
} u;
} __packed action;
} u;
@@ -1865,6 +1882,7 @@ enum ieee80211_category {
WLAN_CATEGORY_DLS = 2,
WLAN_CATEGORY_BACK = 3,
WLAN_CATEGORY_PUBLIC = 4,
+ WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
WLAN_CATEGORY_HT = 7,
WLAN_CATEGORY_SA_QUERY = 8,
WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
@@ -2378,4 +2396,51 @@ static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
#define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
#define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
+/**
+ * ieee80211_action_contains_tpc - checks if the frame contains TPC element
+ * @skb: the skb containing the frame, length will be checked
+ *
+ * This function checks if it's either TPC report action frame or Link
+ * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
+ * and 8.5.7.5 accordingly.
+ */
+static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
+{
+ struct ieee80211_mgmt *mgmt = (void *)skb->data;
+
+ if (!ieee80211_is_action(mgmt->frame_control))
+ return false;
+
+ if (skb->len < IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.tpc_report))
+ return false;
+
+ /*
+ * TPC report - check that:
+ * category = 0 (Spectrum Management) or 5 (Radio Measurement)
+ * spectrum management action = 3 (TPC/Link Measurement report)
+ * TPC report EID = 35
+ * TPC report element length = 2
+ *
+ * The spectrum management's tpc_report struct is used here both for
+ * parsing tpc_report and radio measurement's link measurement report
+ * frame, since the relevant part is identical in both frames.
+ */
+ if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
+ mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
+ return false;
+
+ /* both spectrum mgmt and link measurement have same action code */
+ if (mgmt->u.action.u.tpc_report.action_code !=
+ WLAN_ACTION_SPCT_TPC_RPRT)
+ return false;
+
+ if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
+ mgmt->u.action.u.tpc_report.tpc_elem_length !=
+ sizeof(struct ieee80211_tpc_report_ie))
+ return false;
+
+ return true;
+}
+
#endif /* LINUX_IEEE80211_H */
--
cgit v1.2.1
From ca34e3b5c808385b175650605faa29e71e91991b Mon Sep 17 00:00:00 2001
From: Ido Yariv <ido@wizery.com>
Date: Tue, 29 Jul 2014 15:38:53 +0300
Subject: mac80211: Fix accounting of the tailroom-needed counter
When hw acceleration is enabled, the GENERATE_IV or PUT_IV_SPACE flags
will only require headroom space. Consequently, the tailroom-needed
counter can safely be decremented.
Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 1cd84444665c..1fbed0a6d556 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1226,7 +1226,8 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev);
*
* @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the
* driver to indicate that it requires IV generation for this
- * particular key.
+ * particular key. Setting this flag does not necessarily mean that SKBs
+ * will have sufficient tailroom for ICV or MIC.
* @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by
* the driver for a TKIP key if it requires Michael MIC
* generation in software.
@@ -1238,7 +1239,9 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev);
* @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver
* if space should be prepared for the IV, but the IV
* itself should not be generated. Do not set together with
- * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key.
+ * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. Setting this flag does
+ * not necessarily mean that SKBs will have sufficient tailroom for ICV or
+ * MIC.
* @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received
* management frames. The flag can help drivers that have a hardware
* crypto implementation that doesn't deal with management frames
--
cgit v1.2.1
From c70f59a2a007c57843195a93c3b7308204e0a5ab Mon Sep 17 00:00:00 2001
From: Ido Yariv <ido@wizery.com>
Date: Tue, 29 Jul 2014 15:39:14 +0300
Subject: mac80211: don't resize skbs needlessly
Header-less cloned skbs with sufficient headroom need not be cloned
unless the tailroom is going to be modified.
Fix ieee80211_skb_resize so it would only resize cloned skbs if either
the header isn't released or the tailroom is going to be modified.
Some drivers might have assumed that skbs are never cloned, so add a HW
flag that explicitly permits cloned TX skbs. Drivers which do not modify
TX skbs should set this flag to avoid copying skbs.
Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 1fbed0a6d556..c9b2bec8db47 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1609,6 +1609,9 @@ struct ieee80211_tx_control {
* is not enabled the default action is to disconnect when getting the
* CSA frame.
*
+ * @IEEE80211_HW_SUPPORTS_CLONED_SKBS: The driver will never modify the payload
+ * or tailroom of TX skbs without copying them first.
+ *
* @IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS: The HW supports scanning on all bands
* in one command, mac80211 doesn't have to run separate scans per band.
*/
@@ -1642,7 +1645,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_TIMING_BEACON_ONLY = 1<<26,
IEEE80211_HW_SUPPORTS_HT_CCK_RATES = 1<<27,
IEEE80211_HW_CHANCTX_STA_CSA = 1<<28,
- /* bit 29 unused */
+ IEEE80211_HW_SUPPORTS_CLONED_SKBS = 1<<29,
IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS = 1<<30,
};
--
cgit v1.2.1
From 0e227084aee36b3ba27b4fc9cd9e425be6ce2ab8 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 12 Aug 2014 20:34:30 +0200
Subject: cfg80211: clarify BSS probe response vs. beacon data
There are a few possible cases of where BSS data came from:
1) only a beacon has been received
2) only a probe response has been received
3) the driver didn't report what it received (this happens when
using cfg80211_inform_bss[_width]())
4) both probe response and beacon data has been received
Unfortunately, in the userspace API, a few things weren't there:
a) there was no way to differentiate cases 1) and 4) above
without comparing the data of the IEs
b) the TSF was always from the last frame, instead of being
exposed for beacon/probe response separately like IEs
Fix this by
i) exporting a new flag attribute that indicates whether or
not probe response data has been received - this addresses (a)
ii) exporting a BEACON_TSF attribute that holds the beacon's TSF
if a beacon has been received
iii) not exporting the beacon attributes in case (3) above as that
would just lead userspace into thinking the data actually came
from a beacon when that isn't clear
To implement this, track inside the IEs struct whether or not it
(definitely) came from a beacon.
Reported-by: William Seto
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 2 ++
include/uapi/linux/nl80211.h | 16 ++++++++++++++--
2 files changed, 16 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 7b8dac3efe8f..77b85a89abca 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1503,12 +1503,14 @@ enum cfg80211_signal_type {
* @tsf: TSF contained in the frame that carried these IEs
* @rcu_head: internal use, for freeing
* @len: length of the IEs
+ * @from_beacon: these IEs are known to come from a beacon
* @data: IE data
*/
struct cfg80211_bss_ies {
u64 tsf;
struct rcu_head rcu_head;
int len;
+ bool from_beacon;
u8 data[];
};
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index f1db15b9c041..d097568da690 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3055,14 +3055,20 @@ enum nl80211_bss_scan_width {
* @NL80211_BSS_BSSID: BSSID of the BSS (6 octets)
* @NL80211_BSS_FREQUENCY: frequency in MHz (u32)
* @NL80211_BSS_TSF: TSF of the received probe response/beacon (u64)
+ * (if @NL80211_BSS_PRESP_DATA is present then this is known to be
+ * from a probe response, otherwise it may be from the same beacon
+ * that the NL80211_BSS_BEACON_TSF will be from)
* @NL80211_BSS_BEACON_INTERVAL: beacon interval of the (I)BSS (u16)
* @NL80211_BSS_CAPABILITY: capability field (CPU order, u16)
* @NL80211_BSS_INFORMATION_ELEMENTS: binary attribute containing the
* raw information elements from the probe response/beacon (bin);
- * if the %NL80211_BSS_BEACON_IES attribute is present, the IEs here are
- * from a Probe Response frame; otherwise they are from a Beacon frame.
+ * if the %NL80211_BSS_BEACON_IES attribute is present and the data is
+ * different then the IEs here are from a Probe Response frame; otherwise
+ * they are from a Beacon frame.
* However, if the driver does not indicate the source of the IEs, these
* IEs may be from either frame subtype.
+ * If present, the @NL80211_BSS_PRESP_DATA attribute indicates that the
+ * data here is known to be from a probe response, without any heuristics.
* @NL80211_BSS_SIGNAL_MBM: signal strength of probe response/beacon
* in mBm (100 * dBm) (s32)
* @NL80211_BSS_SIGNAL_UNSPEC: signal strength of the probe response/beacon
@@ -3074,6 +3080,10 @@ enum nl80211_bss_scan_width {
* yet been received
* @NL80211_BSS_CHAN_WIDTH: channel width of the control channel
* (u32, enum nl80211_bss_scan_width)
+ * @NL80211_BSS_BEACON_TSF: TSF of the last received beacon (u64)
+ * (not present if no beacon frame has been received yet)
+ * @NL80211_BSS_PRESP_DATA: the data in @NL80211_BSS_INFORMATION_ELEMENTS and
+ * @NL80211_BSS_TSF is known to be from a probe response (flag attribute)
* @__NL80211_BSS_AFTER_LAST: internal
* @NL80211_BSS_MAX: highest BSS attribute
*/
@@ -3091,6 +3101,8 @@ enum nl80211_bss {
NL80211_BSS_SEEN_MS_AGO,
NL80211_BSS_BEACON_IES,
NL80211_BSS_CHAN_WIDTH,
+ NL80211_BSS_BEACON_TSF,
+ NL80211_BSS_PRESP_DATA,
/* keep last */
__NL80211_BSS_AFTER_LAST,
--
cgit v1.2.1
From 5bc8c1f2b070bab82ed738f98ecfac725e33c57f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 12 Aug 2014 21:01:28 +0200
Subject: cfg80211: allow passing frame type to cfg80211_inform_bss()
When using the cfg80211_inform_bss[_width]() functions drivers
cannot currently indicate whether the data was received in a
beacon or probe response. Fix that by passing a new enum that
indicates such (or unknown).
For good measure, use it in ath6kl.
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com> [ath6kl]
Acked-by: Arend van Spriel <arend@broadcom.com> [brcmfmac]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 77b85a89abca..ab21299c8f4d 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3767,11 +3767,25 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
}
/**
- * cfg80211_inform_bss - inform cfg80211 of a new BSS
+ * enum cfg80211_bss_frame_type - frame type that the BSS data came from
+ * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
+ * from a beacon or probe response
+ * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon
+ * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response
+ */
+enum cfg80211_bss_frame_type {
+ CFG80211_BSS_FTYPE_UNKNOWN,
+ CFG80211_BSS_FTYPE_BEACON,
+ CFG80211_BSS_FTYPE_PRESP,
+};
+
+/**
+ * cfg80211_inform_bss_width - inform cfg80211 of a new BSS
*
* @wiphy: the wiphy reporting the BSS
* @rx_channel: The channel the frame was received on
* @scan_width: width of the control channel
+ * @ftype: frame type (if known)
* @bssid: the BSSID of the BSS
* @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
* @capability: the capability field sent by the peer
@@ -3791,6 +3805,7 @@ struct cfg80211_bss * __must_check
cfg80211_inform_bss_width(struct wiphy *wiphy,
struct ieee80211_channel *rx_channel,
enum nl80211_bss_scan_width scan_width,
+ enum cfg80211_bss_frame_type ftype,
const u8 *bssid, u64 tsf, u16 capability,
u16 beacon_interval, const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp);
@@ -3798,12 +3813,13 @@ cfg80211_inform_bss_width(struct wiphy *wiphy,
static inline struct cfg80211_bss * __must_check
cfg80211_inform_bss(struct wiphy *wiphy,
struct ieee80211_channel *rx_channel,
+ enum cfg80211_bss_frame_type ftype,
const u8 *bssid, u64 tsf, u16 capability,
u16 beacon_interval, const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp)
{
return cfg80211_inform_bss_width(wiphy, rx_channel,
- NL80211_BSS_CHAN_WIDTH_20,
+ NL80211_BSS_CHAN_WIDTH_20, ftype,
bssid, tsf, capability,
beacon_interval, ie, ielen, signal,
gfp);
--
cgit v1.2.1
From 4a32fea9d78f2d2315c0072757b197d5a304dc8b Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Sun, 17 Aug 2014 12:30:27 -0500
Subject: scheduler: Replace __get_cpu_var with this_cpu_ptr
Convert all uses of __get_cpu_var for address calculation to use
this_cpu_ptr instead.
[Uses of __get_cpu_var with cpumask_var_t are no longer
handled by this patch]
Cc: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/kernel_stat.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index ecbc52f9ff77..8422b4ed6882 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -44,8 +44,8 @@ DECLARE_PER_CPU(struct kernel_stat, kstat);
DECLARE_PER_CPU(struct kernel_cpustat, kernel_cpustat);
/* Must have preemption disabled for this to be meaningful. */
-#define kstat_this_cpu (&__get_cpu_var(kstat))
-#define kcpustat_this_cpu (&__get_cpu_var(kernel_cpustat))
+#define kstat_this_cpu this_cpu_ptr(&kstat)
+#define kcpustat_this_cpu this_cpu_ptr(&kernel_cpustat)
#define kstat_cpu(cpu) per_cpu(kstat, cpu)
#define kcpustat_cpu(cpu) per_cpu(kernel_cpustat, cpu)
--
cgit v1.2.1
From 903ceff7ca7b4d80c083a80ee5163b74e9fa359f Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Sun, 17 Aug 2014 12:30:35 -0500
Subject: net: Replace get_cpu_var through this_cpu_ptr
Replace uses of get_cpu_var for address calculation through this_cpu_ptr.
Cc: netdev@vger.kernel.org
Cc: Eric Dumazet <edumazet@google.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/net/netfilter/nf_conntrack.h | 2 +-
include/net/snmp.h | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 37252f71a380..c8a7db605e03 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -242,7 +242,7 @@ extern s32 (*nf_ct_nat_offset)(const struct nf_conn *ct,
DECLARE_PER_CPU(struct nf_conn, nf_conntrack_untracked);
static inline struct nf_conn *nf_ct_untracked_get(void)
{
- return &__raw_get_cpu_var(nf_conntrack_untracked);
+ return raw_cpu_ptr(&nf_conntrack_untracked);
}
void nf_ct_untracked_status_or(unsigned long bits);
diff --git a/include/net/snmp.h b/include/net/snmp.h
index f1f27fdbb0d5..e154133877a2 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -168,7 +168,7 @@ struct linux_xfrm_mib {
#define SNMP_ADD_STATS64_BH(mib, field, addend) \
do { \
- __typeof__(*mib) *ptr = __this_cpu_ptr(mib); \
+ __typeof__(*mib) *ptr = raw_cpu_ptr(mib); \
u64_stats_update_begin(&ptr->syncp); \
ptr->mibs[field] += addend; \
u64_stats_update_end(&ptr->syncp); \
@@ -189,8 +189,8 @@ struct linux_xfrm_mib {
#define SNMP_INC_STATS64(mib, field) SNMP_ADD_STATS64(mib, field, 1)
#define SNMP_UPD_PO_STATS64_BH(mib, basefield, addend) \
do { \
- __typeof__(*mib) *ptr; \
- ptr = __this_cpu_ptr(mib); \
+ __typeof__(*mib) *ptr; \
+ ptr = raw_cpu_ptr((mib)); \
u64_stats_update_begin(&ptr->syncp); \
ptr->mibs[basefield##PKTS]++; \
ptr->mibs[basefield##OCTETS] += addend; \
--
cgit v1.2.1
From 47405a253da4d8ca4b18ad537423083fdd790440 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Sun, 17 Aug 2014 12:30:56 -0500
Subject: percpu: Remove __this_cpu_ptr
The __this_cpu_ptr macro is no longer in use so drop it.
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/percpu-defs.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index cfd56046ecec..420032d41d27 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -257,9 +257,6 @@ do { \
#define __raw_get_cpu_var(var) (*raw_cpu_ptr(&(var)))
#define __get_cpu_var(var) (*this_cpu_ptr(&(var)))
-/* keep until we have removed all uses of __this_cpu_ptr */
-#define __this_cpu_ptr(ptr) raw_cpu_ptr(ptr)
-
/*
* Must be an lvalue. Since @var must be a simple identifier,
* we force a syntax error here if it isn't.
--
cgit v1.2.1
From f111f780ae1abf4cdc464f24293be90c010a04f6 Mon Sep 17 00:00:00 2001
From: Alexey Perevalov <a.perevalov@samsung.com>
Date: Wed, 20 Aug 2014 22:03:18 +0400
Subject: netfilter: nfnetlink_acct: add filter support to nfacct counter
list/reset
You can use this to skip accounting objects when listing/resetting
via NFNL_MSG_ACCT_GET/NFNL_MSG_ACCT_GET_CTRZERO messages with the
NLM_F_DUMP netlink flag. The filtering covers the following cases:
1. No filter specified. In this case, the client will get old behaviour,
2. List/reset counter object only: In this case, you have to use
NFACCT_F_QUOTA as mask and value 0.
3. List/reset quota objects only: You have to use NFACCT_F_QUOTA_PKTS
as mask and value - the same, for byte based quota mask should be
NFACCT_F_QUOTA_BYTES and value - the same.
If you want to obtain the object with any quota type
(ie. NFACCT_F_QUOTA_PKTS|NFACCT_F_QUOTA_BYTES), you need to perform
two dump requests, one to obtain NFACCT_F_QUOTA_PKTS objects and
another for NFACCT_F_QUOTA_BYTES.
Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nfnetlink_acct.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nfnetlink_acct.h b/include/uapi/linux/netfilter/nfnetlink_acct.h
index 51404ec19022..f3e34dbbf966 100644
--- a/include/uapi/linux/netfilter/nfnetlink_acct.h
+++ b/include/uapi/linux/netfilter/nfnetlink_acct.h
@@ -28,9 +28,17 @@ enum nfnl_acct_type {
NFACCT_USE,
NFACCT_FLAGS,
NFACCT_QUOTA,
+ NFACCT_FILTER,
__NFACCT_MAX
};
#define NFACCT_MAX (__NFACCT_MAX - 1)
+enum nfnl_attr_filter_type {
+ NFACCT_FILTER_UNSPEC,
+ NFACCT_FILTER_MASK,
+ NFACCT_FILTER_VALUE,
+ __NFACCT_FILTER_MAX
+};
+#define NFACCT_FILTER_MAX (__NFACCT_FILTER_MAX - 1)
#endif /* _UAPI_NFNL_ACCT_H_ */
--
cgit v1.2.1
From 8dece35daf098e5d086b50724119ffbb24ceca7f Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 22 Aug 2014 07:00:42 -0500
Subject: [media] dm644x_ccdc: use unsigned long for fpc_table_addr
The fpc_table_addr is used as an unsigned integer that stores
an address. At the Kernel, the proper type for such integers
is unsigned long.
This generates lots of warnings when compiling on 64 bits.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
include/media/davinci/dm644x_ccdc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/media/davinci/dm644x_ccdc.h b/include/media/davinci/dm644x_ccdc.h
index 852e96c4bb46..984fb79031de 100644
--- a/include/media/davinci/dm644x_ccdc.h
+++ b/include/media/davinci/dm644x_ccdc.h
@@ -114,7 +114,7 @@ struct ccdc_fault_pixel {
/* Number of fault pixel */
unsigned short fp_num;
/* Address of fault pixel table */
- unsigned int fpc_table_addr;
+ unsigned long fpc_table_addr;
};
/* Structure for CCDC configuration parameters for raw capture mode passed
--
cgit v1.2.1
From bf3baca6c54ce8a2f51687296f868dfe20d33f13 Mon Sep 17 00:00:00 2001
From: James Ban <james.ban.opensource@diasemi.com>
Date: Wed, 27 Aug 2014 11:47:07 +0900
Subject: regulator: da9211: support device tree
This is a patch for supporting device tree of DA9211/DA9213.
Signed-off-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/linux/regulator/da9211.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h
index 658c3c33f4c0..5479394fefce 100644
--- a/include/linux/regulator/da9211.h
+++ b/include/linux/regulator/da9211.h
@@ -32,6 +32,6 @@ struct da9211_pdata {
* 2 : 2 phase 2 buck
*/
int num_buck;
- struct regulator_init_data *init_data;
+ struct regulator_init_data *init_data[DA9211_MAX_REGULATORS];
};
#endif
--
cgit v1.2.1
From f1217ed09f827e42a49ffa6a5aab672aa6f57a65 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Wed, 27 Aug 2014 13:16:04 +0200
Subject: drm/ttm: move fpfn and lpfn into each placement v2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This allows us to more fine grained specify where to place the buffer object.
v2: rebased on drm-next, add bochs changes as well
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
include/drm/ttm/ttm_bo_api.h | 40 ++++++++++++++++++----------------------
include/drm/ttm/ttm_bo_driver.h | 3 +--
2 files changed, 19 insertions(+), 24 deletions(-)
(limited to 'include')
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 7526c5bf5610..e3d39c80a091 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -45,12 +45,24 @@ struct ttm_bo_device;
struct drm_mm_node;
+/**
+ * struct ttm_place
+ *
+ * @fpfn: first valid page frame number to put the object
+ * @lpfn: last valid page frame number to put the object
+ * @flags: memory domain and caching flags for the object
+ *
+ * Structure indicating a possible place to put an object.
+ */
+struct ttm_place {
+ unsigned fpfn;
+ unsigned lpfn;
+ uint32_t flags;
+};
/**
* struct ttm_placement
*
- * @fpfn: first valid page frame number to put the object
- * @lpfn: last valid page frame number to put the object
* @num_placement: number of preferred placements
* @placement: preferred placements
* @num_busy_placement: number of preferred placements when need to evict buffer
@@ -59,12 +71,10 @@ struct drm_mm_node;
* Structure indicating the placement you request for an object.
*/
struct ttm_placement {
- unsigned fpfn;
- unsigned lpfn;
- unsigned num_placement;
- const uint32_t *placement;
- unsigned num_busy_placement;
- const uint32_t *busy_placement;
+ unsigned num_placement;
+ const struct ttm_place *placement;
+ unsigned num_busy_placement;
+ const struct ttm_place *busy_placement;
};
/**
@@ -518,20 +528,6 @@ extern int ttm_bo_create(struct ttm_bo_device *bdev,
struct file *persistent_swap_storage,
struct ttm_buffer_object **p_bo);
-/**
- * ttm_bo_check_placement
- *
- * @bo: the buffer object.
- * @placement: placements
- *
- * Performs minimal validity checking on an intended change of
- * placement flags.
- * Returns
- * -EINVAL: Intended change is invalid or not allowed.
- */
-extern int ttm_bo_check_placement(struct ttm_buffer_object *bo,
- struct ttm_placement *placement);
-
/**
* ttm_bo_init_mm
*
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 1d9f0f1ff52d..5c8bb5699a6f 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -208,8 +208,7 @@ struct ttm_mem_type_manager_func {
*/
int (*get_node)(struct ttm_mem_type_manager *man,
struct ttm_buffer_object *bo,
- struct ttm_placement *placement,
- uint32_t flags,
+ const struct ttm_place *place,
struct ttm_mem_reg *mem);
/**
--
cgit v1.2.1
From 6a4c264313c4ae32dc53821a9c57e0dc9696fb81 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Wed, 27 Aug 2014 06:21:23 +0930
Subject: module: rename KERNEL_PARAM_FL_NOARG to avoid confusion
Make it clear this is about kernel_param_ops, not kernel_param (which
will soon have a flags field of its own). No functional changes.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Jon Mason <jon.mason@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/moduleparam.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 494f99e852da..16fdddab856a 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -42,7 +42,7 @@ struct kernel_param;
* NOARG - the parameter allows for no argument (foo instead of foo=1)
*/
enum {
- KERNEL_PARAM_FL_NOARG = (1 << 0)
+ KERNEL_PARAM_OPS_FL_NOARG = (1 << 0)
};
struct kernel_param_ops {
--
cgit v1.2.1
From 91f9d330cc14932084c37751997213cb0e7ea882 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Wed, 27 Aug 2014 06:22:23 +0930
Subject: module: make it possible to have unsafe, tainting module params
Add flags field to struct kernel_params, and add the first flag: unsafe
parameter. Modifying a kernel parameter with the unsafe flag set, either
via the kernel command line or sysfs, will issue a warning and taint the
kernel.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Jon Mason <jon.mason@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/moduleparam.h | 44 +++++++++++++++++++++++++++++++++++---------
1 file changed, 35 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 16fdddab856a..1e3ffb839daa 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -56,11 +56,21 @@ struct kernel_param_ops {
void (*free)(void *arg);
};
+/*
+ * Flags available for kernel_param
+ *
+ * UNSAFE - the parameter is dangerous and setting it will taint the kernel
+ */
+enum {
+ KERNEL_PARAM_FL_UNSAFE = (1 << 0)
+};
+
struct kernel_param {
const char *name;
const struct kernel_param_ops *ops;
u16 perm;
- s16 level;
+ s8 level;
+ u8 flags;
union {
void *arg;
const struct kparam_string *str;
@@ -137,7 +147,7 @@ struct kparam_array
* The ops can have NULL set or get functions.
*/
#define module_param_cb(name, ops, arg, perm) \
- __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1)
+ __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
/**
* <level>_param_cb - general callback for a module/cmdline parameter
@@ -149,7 +159,7 @@ struct kparam_array
* The ops can have NULL set or get functions.
*/
#define __level_param_cb(name, ops, arg, perm, level) \
- __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, level)
+ __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, level, 0)
#define core_param_cb(name, ops, arg, perm) \
__level_param_cb(name, ops, arg, perm, 1)
@@ -184,14 +194,14 @@ struct kparam_array
/* This is the fundamental function for registering boot/module
parameters. */
-#define __module_param_call(prefix, name, ops, arg, perm, level) \
+#define __module_param_call(prefix, name, ops, arg, perm, level, flags) \
/* Default value instead of permissions? */ \
static const char __param_str_##name[] = prefix #name; \
static struct kernel_param __moduleparam_const __param_##name \
__used \
__attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) \
= { __param_str_##name, ops, VERIFY_OCTAL_PERMISSIONS(perm), \
- level, { arg } }
+ level, flags, { arg } }
/* Obsolete - use module_param_cb() */
#define module_param_call(name, set, get, arg, perm) \
@@ -199,7 +209,7 @@ struct kparam_array
{ 0, (void *)set, (void *)get }; \
__module_param_call(MODULE_PARAM_PREFIX, \
name, &__param_ops_##name, arg, \
- (perm) + sizeof(__check_old_set_param(set))*0, -1)
+ (perm) + sizeof(__check_old_set_param(set))*0, -1, 0)
/* We don't get oldget: it's often a new-style param_get_uint, etc. */
static inline int
@@ -279,7 +289,7 @@ static inline void __kernel_param_unlock(void)
*/
#define core_param(name, var, type, perm) \
param_check_##type(name, &(var)); \
- __module_param_call("", name, ¶m_ops_##type, &var, perm, -1)
+ __module_param_call("", name, ¶m_ops_##type, &var, perm, -1, 0)
#endif /* !MODULE */
/**
@@ -297,7 +307,7 @@ static inline void __kernel_param_unlock(void)
= { len, string }; \
__module_param_call(MODULE_PARAM_PREFIX, name, \
¶m_ops_string, \
- .str = &__param_string_##name, perm, -1); \
+ .str = &__param_string_##name, perm, -1, 0);\
__MODULE_PARM_TYPE(name, "string")
/**
@@ -346,6 +356,22 @@ static inline void destroy_params(const struct kernel_param *params,
#define __param_check(name, p, type) \
static inline type __always_unused *__check_##name(void) { return(p); }
+/**
+ * param_check_unsafe - Warn and taint the kernel if setting dangerous options.
+ *
+ * This gets called from all the standard param setters, but can be used from
+ * custom setters as well.
+ */
+static inline void
+param_check_unsafe(const struct kernel_param *kp)
+{
+ if (kp->flags & KERNEL_PARAM_FL_UNSAFE) {
+ pr_warn("Setting dangerous option %s - tainting kernel\n",
+ kp->name);
+ add_taint(TAINT_USER, LOCKDEP_STILL_OK);
+ }
+}
+
extern struct kernel_param_ops param_ops_byte;
extern int param_set_byte(const char *val, const struct kernel_param *kp);
extern int param_get_byte(char *buffer, const struct kernel_param *kp);
@@ -444,7 +470,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
__module_param_call(MODULE_PARAM_PREFIX, name, \
¶m_array_ops, \
.arr = &__param_arr_##name, \
- perm, -1); \
+ perm, -1, 0); \
__MODULE_PARM_TYPE(name, "array of " #type)
extern struct kernel_param_ops param_array_ops;
--
cgit v1.2.1
From 3baee201b06cfaff84c2c5ddc551b192bb3eaed3 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Wed, 27 Aug 2014 06:23:23 +0930
Subject: module: add module_param_unsafe and module_param_named_unsafe
Add the helpers to be used by modules wishing to expose unsafe debugging
or testing module parameters that taint the kernel when set.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Jon Mason <jon.mason@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/moduleparam.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 1e3ffb839daa..9531f9f9729e 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -122,6 +122,12 @@ struct kparam_array
#define module_param(name, type, perm) \
module_param_named(name, name, type, perm)
+/**
+ * module_param_unsafe - same as module_param but taints kernel
+ */
+#define module_param_unsafe(name, type, perm) \
+ module_param_named_unsafe(name, name, type, perm)
+
/**
* module_param_named - typesafe helper for a renamed module/cmdline parameter
* @name: a valid C identifier which is the parameter name.
@@ -138,6 +144,14 @@ struct kparam_array
module_param_cb(name, ¶m_ops_##type, &value, perm); \
__MODULE_PARM_TYPE(name, #type)
+/**
+ * module_param_named_unsafe - same as module_param_named but taints kernel
+ */
+#define module_param_named_unsafe(name, value, type, perm) \
+ param_check_##type(name, &(value)); \
+ module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
+ __MODULE_PARM_TYPE(name, #type)
+
/**
* module_param_cb - general callback for a module/cmdline parameter
* @name: a valid C identifier which is the parameter name.
@@ -149,6 +163,10 @@ struct kparam_array
#define module_param_cb(name, ops, arg, perm) \
__module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, 0)
+#define module_param_cb_unsafe(name, ops, arg, perm) \
+ __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, \
+ KERNEL_PARAM_FL_UNSAFE)
+
/**
* <level>_param_cb - general callback for a module/cmdline parameter
* to be evaluated before certain initcall level
--
cgit v1.2.1
From 7a486d3781295b5298cbf9556928a76d26896863 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 27 Aug 2014 06:25:23 +0930
Subject: param: check for tainting before calling set op.
This means every set op doesn't need to call it, and it can move into
params.c.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/moduleparam.h | 16 ----------------
1 file changed, 16 deletions(-)
(limited to 'include')
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 9531f9f9729e..593501996574 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -374,22 +374,6 @@ static inline void destroy_params(const struct kernel_param *params,
#define __param_check(name, p, type) \
static inline type __always_unused *__check_##name(void) { return(p); }
-/**
- * param_check_unsafe - Warn and taint the kernel if setting dangerous options.
- *
- * This gets called from all the standard param setters, but can be used from
- * custom setters as well.
- */
-static inline void
-param_check_unsafe(const struct kernel_param *kp)
-{
- if (kp->flags & KERNEL_PARAM_FL_UNSAFE) {
- pr_warn("Setting dangerous option %s - tainting kernel\n",
- kp->name);
- add_taint(TAINT_USER, LOCKDEP_STILL_OK);
- }
-}
-
extern struct kernel_param_ops param_ops_byte;
extern int param_set_byte(const char *val, const struct kernel_param *kp);
extern int param_get_byte(char *buffer, const struct kernel_param *kp);
--
cgit v1.2.1
From 2d15d974618db4ed3adafe9b9fe092db0f5076a0 Mon Sep 17 00:00:00 2001
From: Bard Liao <bardliao@realtek.com>
Date: Wed, 27 Aug 2014 19:50:34 +0800
Subject: ASoC: rt5677: Add DMIC2 clock selection
There are two pins can be used for rt5677's DMIC2 clock. This patch
add the select options for it.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/rt5677.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/sound/rt5677.h b/include/sound/rt5677.h
index 3da14313bcfc..a676717f74f4 100644
--- a/include/sound/rt5677.h
+++ b/include/sound/rt5677.h
@@ -12,10 +12,18 @@
#ifndef __LINUX_SND_RT5677_H
#define __LINUX_SND_RT5677_H
+enum rt5677_dmic2_clk {
+ RT5677_DMIC_CLK1 = 0,
+ RT5677_DMIC_CLK2 = 1,
+};
+
+
struct rt5677_platform_data {
/* IN1 IN2 can optionally be differential */
bool in1_diff;
bool in2_diff;
+ /* DMIC2 clock source selection */
+ enum rt5677_dmic2_clk dmic2_clk_pin;
};
#endif
--
cgit v1.2.1
From 64d831269ccbca1fc6d739a0f3c8aa24afb43a5e Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Tue, 19 Aug 2014 12:15:00 +0200
Subject: KVM: Introduce gfn_to_hva_memslot_prot
To support read-only memory regions on arm and arm64, we have a need to
resolve a gfn to an hva given a pointer to a memslot to avoid looping
through the memslots twice and to reuse the hva error checking of
gfn_to_hva_prot(), add a new gfn_to_hva_memslot_prot() function and
refactor gfn_to_hva_prot() to use this function.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/linux/kvm_host.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ebd723676633..6d8a658ec174 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -528,6 +528,8 @@ struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
unsigned long gfn_to_hva_prot(struct kvm *kvm, gfn_t gfn, bool *writable);
unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, gfn_t gfn);
+unsigned long gfn_to_hva_memslot_prot(struct kvm_memory_slot *slot, gfn_t gfn,
+ bool *writable);
void kvm_release_page_clean(struct page *page);
void kvm_release_page_dirty(struct page *page);
void kvm_set_page_accessed(struct page *page);
--
cgit v1.2.1
From 5c21403d74af2c9cd635a34c2f9199681a5b813e Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2014 14:39:04 -0700
Subject: net: Update sk_buff flag bit availability comment.
We lost one when xmit_more was added.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 9b3802a197a8..b69b7b512c06 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -580,7 +580,7 @@ struct sk_buff {
__u8 encap_hdr_csum:1;
__u8 csum_valid:1;
__u8 csum_complete_sw:1;
- /* 2/4 bit hole (depending on ndisc_nodetype presence) */
+ /* 1/3 bit hole (depending on ndisc_nodetype presence) */
kmemcheck_bitfield_end(flags2);
#if defined CONFIG_NET_DMA || defined CONFIG_NET_RX_BUSY_POLL
--
cgit v1.2.1
From 3e8a72d1dae374cf6fc1dba97cec663585845ff9 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:46 -0700
Subject: net: dsa: reduce number of protocol hooks
DSA is currently registering one packet_type function per EtherType it
needs to intercept in the receive path of a DSA-enabled Ethernet device.
Right now we have three of them: trailer, DSA and eDSA, and there might
be more in the future, this will not scale to the addition of new
protocols.
This patch proceeds with adding a new layer of abstraction and two new
functions:
dsa_switch_rcv() which will dispatch into the tag-protocol specific
receive function implemented by net/dsa/tag_*.c
dsa_slave_xmit() which will dispatch into the tag-protocol specific
transmit function implemented by net/dsa/tag_*.c
When we do create the per-port slave network devices, we iterate over
the switch protocol to assign the DSA-specific receive and transmit
operations.
A new fake ethertype value is used: ETH_P_XDSA to illustrate the fact
that this is no longer going to look like ETH_P_DSA or ETH_P_TRAILER
like it used to be.
This allows us to greatly simplify the check in eth_type_trans() and
always override the skb->protocol with ETH_P_XDSA for Ethernet switches
tagged protocol, while also reducing the number repetitive slave
netdevice_ops assignments.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 28 ++++++++++++----------------
include/net/dsa.h | 20 +++-----------------
include/uapi/linux/if_ether.h | 1 +
3 files changed, 16 insertions(+), 33 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 039b23786c22..1875dc71422a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1781,24 +1781,13 @@ void dev_net_set(struct net_device *dev, struct net *net)
#endif
}
-static inline bool netdev_uses_dsa_tags(struct net_device *dev)
+static inline bool netdev_uses_dsa(struct net_device *dev)
{
-#ifdef CONFIG_NET_DSA_TAG_DSA
- if (dev->dsa_ptr != NULL)
- return dsa_uses_dsa_tags(dev->dsa_ptr);
-#endif
-
- return 0;
-}
-
-static inline bool netdev_uses_trailer_tags(struct net_device *dev)
-{
-#ifdef CONFIG_NET_DSA_TAG_TRAILER
- if (dev->dsa_ptr != NULL)
- return dsa_uses_trailer_tags(dev->dsa_ptr);
+#ifdef CONFIG_NET_DSA
+ return dev->dsa_ptr != NULL;
+#else
+ return false;
#endif
-
- return 0;
}
/**
@@ -1933,6 +1922,13 @@ struct udp_offload {
struct offload_callbacks callbacks;
};
+struct dsa_device_ops {
+ netdev_tx_t (*xmit)(struct sk_buff *skb, struct net_device *dev);
+ int (*rcv)(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev);
+};
+
+
/* often modified stats are per cpu, other are shared (netdev->stats) */
struct pcpu_sw_netstats {
u64 rx_packets;
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 6efce384451e..6e26f1e4d8ce 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -59,6 +59,8 @@ struct dsa_platform_data {
struct dsa_chip_data *chip;
};
+struct dsa_device_ops;
+
struct dsa_switch_tree {
/*
* Configuration data for the platform device that owns
@@ -71,6 +73,7 @@ struct dsa_switch_tree {
* protocol to use.
*/
struct net_device *master_netdev;
+ const struct dsa_device_ops *ops;
__be16 tag_protocol;
/*
@@ -186,21 +189,4 @@ static inline void *ds_to_priv(struct dsa_switch *ds)
return (void *)(ds + 1);
}
-/*
- * The original DSA tag format and some other tag formats have no
- * ethertype, which means that we need to add a little hack to the
- * networking receive path to make sure that received frames get
- * the right ->protocol assigned to them when one of those tag
- * formats is in use.
- */
-static inline bool dsa_uses_dsa_tags(struct dsa_switch_tree *dst)
-{
- return !!(dst->tag_protocol == htons(ETH_P_DSA));
-}
-
-static inline bool dsa_uses_trailer_tags(struct dsa_switch_tree *dst)
-{
- return !!(dst->tag_protocol == htons(ETH_P_TRAILER));
-}
-
#endif
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index 0f8210b8e0bc..aa63ed023c2b 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -128,6 +128,7 @@
#define ETH_P_PHONET 0x00F5 /* Nokia Phonet frames */
#define ETH_P_IEEE802154 0x00F6 /* IEEE802.15.4 frame */
#define ETH_P_CAIF 0x00F7 /* ST-Ericsson CAIF protocol */
+#define ETH_P_XDSA 0x00F8 /* Multiplexed DSA protocol */
/*
* This is an Ethernet frame header.
--
cgit v1.2.1
From 464c3668f065baeacfffa9d421959d21069389fe Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:48 -0700
Subject: net: phy: provide stub for fixed_phy_set_link_update
In preparation for updating the DSA code and avoid using ifdefs there,
provide an empty stub for fixed_phy_set_link_update when
CONFIG_FIXED_PHY is not selected.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/phy_fixed.h | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index ae612acebb53..941138664c1d 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -18,6 +18,9 @@ extern int fixed_phy_register(unsigned int irq,
struct fixed_phy_status *status,
struct device_node *np);
extern void fixed_phy_del(int phy_addr);
+extern int fixed_phy_set_link_update(struct phy_device *phydev,
+ int (*link_update)(struct net_device *,
+ struct fixed_phy_status *));
#else
static inline int fixed_phy_add(unsigned int irq, int phy_id,
struct fixed_phy_status *status)
@@ -34,14 +37,12 @@ static inline int fixed_phy_del(int phy_addr)
{
return -ENODEV;
}
-#endif /* CONFIG_FIXED_PHY */
-
-/*
- * This function issued only by fixed_phy-aware drivers, no need
- * protect it with #ifdef
- */
-extern int fixed_phy_set_link_update(struct phy_device *phydev,
+static inline int fixed_phy_set_link_update(struct phy_device *phydev,
int (*link_update)(struct net_device *,
- struct fixed_phy_status *));
+ struct fixed_phy_status *))
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_FIXED_PHY */
#endif /* __PHY_FIXED_H */
--
cgit v1.2.1
From fa981d9af82e08f316ed25ed43078f995cc4be0a Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:49 -0700
Subject: net: dsa: provide a switch device device tree node pointer
We might need to fetch additional resources from the device tree node
pointer, such as register ranges or other properties. Keep a device_node
pointer around for this.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 6e26f1e4d8ce..decc62709acd 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -15,6 +15,7 @@
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
+#include <linux/of.h>
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
@@ -26,6 +27,12 @@ struct dsa_chip_data {
struct device *mii_bus;
int sw_addr;
+ /* Device tree node pointer for this specific switch chip
+ * used during switch setup in case additional properties
+ * and resources needs to be used
+ */
+ struct device_node *of_node;
+
/*
* The names of the switch's ports. Use "cpu" to
* designate the switch port that the cpu is connected to,
--
cgit v1.2.1
From bd47497a0171b96264927e3377254db13b9fe3e3 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:50 -0700
Subject: net: dsa: retain a per-port device_node pointer
We will later use the per-port device_node pointer to fetch a bunch of
port-specific properties.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index decc62709acd..597875d3f69e 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -41,6 +41,7 @@ struct dsa_chip_data {
* or any other string to indicate this is a physical port.
*/
char *port_names[DSA_MAX_PORTS];
+ struct device_node *port_dn[DSA_MAX_PORTS];
/*
* An array (with nr_chips elements) of which element [a]
--
cgit v1.2.1
From 0d8bcdd383b8865e752a7e8edb4712c2e3902052 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:51 -0700
Subject: net: dsa: allow for more complex PHY setups
Modify the DSA slave interface to be bound to an arbitray PHY, not just
the ones that are available as child PHY devices of the switch MDIO bus.
This allows us for instance to have external PHYs connected to a
separate MDIO bus, but yet also connected to a given switch port.
Under certain configurations, the physical port mask might not be a 1:1
mapping to the MII PHYs mask. This is the case, if e.g: Port 1 of the
switch is used and connects to a PHY at a MDIO address different than 1.
Introduce a phys_mii_mask variable which allows driver to implement and
divert their own MDIO read/writes operations for a subset of the MDIO
PHY addresses.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 597875d3f69e..dc357454ae3b 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -130,6 +130,7 @@ struct dsa_switch {
*/
u32 dsa_port_mask;
u32 phys_port_mask;
+ u32 phys_mii_mask;
struct mii_bus *slave_mii_bus;
struct net_device *ports[DSA_MAX_PORTS];
};
--
cgit v1.2.1
From 5aed85cec29882d1c4b4b2a01cb75a99efdbe4ed Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:52 -0700
Subject: net: dsa: allow switches to work without tagging
In case switch port tagging is disabled (voluntarily, or the switch just
does not support it), allow us to continue using the defined set of
dsa_device_ops in net/dsa/slave.c.
We introduce dsa_protocol_is_tagged() to check whether we need to
override skb->protocol and go through the DSA-specifif packet_type
function, or if we just go on and receive the SKB through the normal
path.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 6 +++---
include/net/dsa.h | 5 +++++
2 files changed, 8 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1875dc71422a..429801370d0c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1784,10 +1784,10 @@ void dev_net_set(struct net_device *dev, struct net *net)
static inline bool netdev_uses_dsa(struct net_device *dev)
{
#ifdef CONFIG_NET_DSA
- return dev->dsa_ptr != NULL;
-#else
- return false;
+ if (dev->dsa_ptr != NULL)
+ return dsa_uses_tagged_protocol(dev->dsa_ptr);
#endif
+ return false;
}
/**
diff --git a/include/net/dsa.h b/include/net/dsa.h
index dc357454ae3b..1035f6452d79 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -198,4 +198,9 @@ static inline void *ds_to_priv(struct dsa_switch *ds)
return (void *)(ds + 1);
}
+static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
+{
+ return dst->tag_protocol != 0;
+}
+
#endif
--
cgit v1.2.1
From ec9436baedb689668c409cfc8b69eb9573b0d661 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:53 -0700
Subject: net: dsa: allow drivers to do link adjustment
Whenever libphy determines that the link status of a given PHY/port has
changed, allow to call into the switch driver link adjustment callback
so proper actions can be taken care of by the switch driver upon link
notification.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 1035f6452d79..2d3835924dd2 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -16,6 +16,7 @@
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <linux/of.h>
+#include <linux/phy.h>
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
@@ -181,6 +182,12 @@ struct dsa_switch_driver {
*/
void (*poll_link)(struct dsa_switch *ds);
+ /*
+ * Link state adjustment (called from libphy)
+ */
+ void (*adjust_link)(struct dsa_switch *ds, int port,
+ struct phy_device *phydev);
+
/*
* ethtool hardware statistics.
*/
--
cgit v1.2.1
From ce31b31c68e7e39f29b1257581fbd08ce3ca5589 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:54 -0700
Subject: net: dsa: allow updating fixed PHY link information
Allow switch drivers to hook a PHY link update callback to perform
port-specific link work.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 2d3835924dd2..2c9563f0b2f4 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -17,6 +17,7 @@
#include <linux/workqueue.h>
#include <linux/of.h>
#include <linux/phy.h>
+#include <linux/phy_fixed.h>
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
@@ -187,6 +188,8 @@ struct dsa_switch_driver {
*/
void (*adjust_link)(struct dsa_switch *ds, int port,
struct phy_device *phydev);
+ void (*fixed_link_update)(struct dsa_switch *ds, int port,
+ struct fixed_phy_status *st);
/*
* ethtool hardware statistics.
--
cgit v1.2.1
From 5037d532b83d7325a2743dffe82882a64697a8e8 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Aug 2014 17:04:55 -0700
Subject: net: dsa: add Broadcom tag RX/TX handler
Add support for the 4-bytes Broadcom tag that built-in switches such as
the Starfighter 2 might insert when receiving packets, or that we need
to insert while targetting specific switch ports. We use a fake local
EtherType value for this 4-bytes switch tag: ETH_P_BRCMTAG to make sure
we can assign DSA-specific network operations within the DSA drivers.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 2c9563f0b2f4..97712927a9d2 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -19,6 +19,11 @@
#include <linux/phy.h>
#include <linux/phy_fixed.h>
+/* Not an official ethertype value, used only internally for DSA
+ * demultiplexing
+ */
+#define ETH_P_BRCMTAG (ETH_P_XDSA + 1)
+
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
--
cgit v1.2.1
From 97fdaab4699de3a2a91001efef60bb0622de1c53 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 26 Aug 2014 13:15:25 -0700
Subject: net: phy: broadcom: fix PHY_BCM_OUI_4
PHY_BCM_OUI_4 is missing two significant digits that actually make it an
OUI, add those missing bits so it becomes usable again for matching.
Fixes: b560a58c45c6 ("net: phy: add Broadcom BCM7xxx internal PHY driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index ee1431d976fa..921f17ca4c26 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -21,7 +21,7 @@
#define PHY_BCM_OUI_1 0x00206000
#define PHY_BCM_OUI_2 0x0143bc00
#define PHY_BCM_OUI_3 0x03625c00
-#define PHY_BCM_OUI_4 0x600d0000
+#define PHY_BCM_OUI_4 0x600d8400
#define PHY_BCM_OUI_5 0x03625e00
--
cgit v1.2.1
From 11bf2bbd596add62a86a74fc7aedc0b86c6ec154 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 26 Aug 2014 13:15:26 -0700
Subject: net: phy: broadcom: add new Broadcom OUI
Broadcom started to use a new OUI for its 2013 and newer products:
D4-01-29 which translates into 0xae025000 for a 32-bits OUI, add its
definition.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 921f17ca4c26..cbcfad36d4c0 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -23,7 +23,7 @@
#define PHY_BCM_OUI_3 0x03625c00
#define PHY_BCM_OUI_4 0x600d8400
#define PHY_BCM_OUI_5 0x03625e00
-
+#define PHY_BCM_OUI_6 0xae025000
#define PHY_BCM_FLAGS_MODE_COPPER 0x00000001
#define PHY_BCM_FLAGS_MODE_1000BX 0x00000002
--
cgit v1.2.1
From 430ad68ffb5fa632a277162e5995cd6f7a39fb78 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 26 Aug 2014 13:15:27 -0700
Subject: net: phy: bcm7xxx: add BCM7250 and BCM7364 PHY entries
Add two new entries to the Broadcom BCM7xxx internal PHY driver for
BCM7250 and BCM7364 chips. Those chips share the usual 28nm process
Gigabit PHY sequence and require the same workarounds so far.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index cbcfad36d4c0..5bd35cc0d471 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -13,6 +13,8 @@
#define PHY_ID_BCM5461 0x002060c0
#define PHY_ID_BCM57780 0x03625d90
+#define PHY_ID_BCM7250 0xae025280
+#define PHY_ID_BCM7364 0xae025260
#define PHY_ID_BCM7366 0x600d8490
#define PHY_ID_BCM7439 0x600d8480
#define PHY_ID_BCM7445 0x600d8510
--
cgit v1.2.1
From 4ba2968420fa9d0604b6a6a5c61bfa8d0fa84ae0 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Tue, 26 Aug 2014 19:12:21 -0500
Subject: percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t
__get_cpu_var can paper over differences in the definitions of
cpumask_var_t and either use the address of the cpumask variable
directly or perform a fetch of the address of the struct cpumask
allocated elsewhere. This is important particularly when using per cpu
cpumask_var_t declarations because in one case we have an offset into
a per cpu area to handle and in the other case we need to fetch a
pointer from the offset.
This patch introduces a new macro
this_cpu_cpumask_var_ptr()
that is defined where cpumask_var_t is defined and performs the proper
actions. All use cases where __get_cpu_var is used with cpumask_var_t
are converted to the use of this_cpu_cpumask_var_ptr().
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/cpumask.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 2997af6d2ccd..0a9a6da21e74 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -666,10 +666,19 @@ static inline size_t cpumask_size(void)
*
* This code makes NR_CPUS length memcopy and brings to a memory corruption.
* cpumask_copy() provide safe copy functionality.
+ *
+ * Note that there is another evil here: If you define a cpumask_var_t
+ * as a percpu variable then the way to obtain the address of the cpumask
+ * structure differently influences what this_cpu_* operation needs to be
+ * used. Please use this_cpu_cpumask_var_t in those cases. The direct use
+ * of this_cpu_ptr() or this_cpu_read() will lead to failures when the
+ * other type of cpumask_var_t implementation is configured.
*/
#ifdef CONFIG_CPUMASK_OFFSTACK
typedef struct cpumask *cpumask_var_t;
+#define this_cpu_cpumask_var_ptr(x) this_cpu_read(x)
+
bool alloc_cpumask_var_node(cpumask_var_t *mask, gfp_t flags, int node);
bool alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags);
bool zalloc_cpumask_var_node(cpumask_var_t *mask, gfp_t flags, int node);
@@ -681,6 +690,8 @@ void free_bootmem_cpumask_var(cpumask_var_t mask);
#else
typedef struct cpumask cpumask_var_t[1];
+#define this_cpu_cpumask_var_ptr(x) this_cpu_ptr(x)
+
static inline bool alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags)
{
return true;
--
cgit v1.2.1
From d7cdb968081727746c8d2fb31b12ea6d1694888e Mon Sep 17 00:00:00 2001
From: Jesper Dangaard Brouer <brouer@redhat.com>
Date: Fri, 20 Jun 2014 17:19:06 +0200
Subject: treewide: fix synchronize_rcu() in comments
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/percpu-refcount.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 3dfbf237cd8f..652fd64cab5e 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -29,7 +29,7 @@
* calls io_destroy() or the process exits.
*
* In the aio code, kill_ioctx() is called when we wish to destroy a kioctx; it
- * calls percpu_ref_kill(), then hlist_del_rcu() and sychronize_rcu() to remove
+ * calls percpu_ref_kill(), then hlist_del_rcu() and synchronize_rcu() to remove
* the kioctx from the proccess's list of kioctxs - after that, there can't be
* any new users of the kioctx (from lookup_ioctx()) and it's then safe to drop
* the initial ref with percpu_ref_put().
--
cgit v1.2.1
From f3ababa8ba2ace6668a24803910577a49dc146dd Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Fri, 8 Aug 2014 15:29:09 -0700
Subject: pinctrl: Add mux options 3 and 4 for rockchip pinctrl
Newer Rockchip SoCs have more muxing slots. Add slots 3 and 4 since
the rk3288 table goes all the way up to 4.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/dt-bindings/pinctrl/rockchip.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/pinctrl/rockchip.h b/include/dt-bindings/pinctrl/rockchip.h
index cd5788be82ce..743e66a95e13 100644
--- a/include/dt-bindings/pinctrl/rockchip.h
+++ b/include/dt-bindings/pinctrl/rockchip.h
@@ -28,5 +28,7 @@
#define RK_FUNC_GPIO 0
#define RK_FUNC_1 1
#define RK_FUNC_2 2
+#define RK_FUNC_3 3
+#define RK_FUNC_4 4
#endif
--
cgit v1.2.1
From d37aba521379203b740a2929e6e6f6bd2485f5d7 Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Thu, 28 Aug 2014 13:54:18 +0200
Subject: ARM: tegra: remove unused tegra_emc.h
The header file include/linux/platform_data/tegra_emc.h does not seem
to be used anywhere. It was orphaned by a7cbe92c "ARM: tegra: remove
tegra EMC scaling driver". Remove it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
include/linux/platform_data/tegra_emc.h | 34 ---------------------------------
1 file changed, 34 deletions(-)
delete mode 100644 include/linux/platform_data/tegra_emc.h
(limited to 'include')
diff --git a/include/linux/platform_data/tegra_emc.h b/include/linux/platform_data/tegra_emc.h
deleted file mode 100644
index df67505e98f8..000000000000
--- a/include/linux/platform_data/tegra_emc.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2011 Google, Inc.
- *
- * Author:
- * Colin Cross <ccross@android.com>
- * Olof Johansson <olof@lixom.net>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef __TEGRA_EMC_H_
-#define __TEGRA_EMC_H_
-
-#define TEGRA_EMC_NUM_REGS 46
-
-struct tegra_emc_table {
- unsigned long rate;
- u32 regs[TEGRA_EMC_NUM_REGS];
-};
-
-struct tegra_emc_pdata {
- int num_tables;
- struct tegra_emc_table *tables;
-};
-
-#endif
--
cgit v1.2.1
From b792346fa8660a22a06f118cebe47709f507914f Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Thu, 28 Aug 2014 14:07:11 +0300
Subject: ASoC: Remove unused cache_only from struct snd_soc_codec
There are no real users for cache_only in "struct snd_soc_codec" so remove
it and needless debugfs node.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index edbb0d72ab38..ce09302bfd6d 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -792,7 +792,6 @@ struct snd_soc_codec {
unsigned int ac97_registered:1; /* Codec has been AC97 registered */
unsigned int ac97_created:1; /* Codec has been created by SoC */
unsigned int cache_init:1; /* codec cache has been initialized */
- u32 cache_only; /* Suppress writes to hardware */
u32 cache_sync; /* Cache needs to be synced to hardware */
/* codec IO */
--
cgit v1.2.1
From 2b8941b962a9f24d61c2b3c2e889928e6cf3d82b Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Wed, 27 Aug 2014 11:17:56 -0400
Subject: NFSD: Update some as-yet unused 4.2 error codes
Recent NFS v4.2 drafts have removed NFS4ERR_METADATA_NOTSUPP and
reassigned the error code to NFS4ERR_UNION_NOTSUPP.
I also add in the NFS4ERR_OFFLOAD_NO_REQS error code.
We're not using any of these yet, so there's no harm done.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/nfs4.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index a1e3064a8d99..79b2a0f5c318 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -235,10 +235,11 @@ enum nfsstat4 {
/* nfs42 */
NFS4ERR_PARTNER_NOTSUPP = 10088,
NFS4ERR_PARTNER_NO_AUTH = 10089,
- NFS4ERR_METADATA_NOTSUPP = 10090,
+ NFS4ERR_UNION_NOTSUPP = 10090,
NFS4ERR_OFFLOAD_DENIED = 10091,
NFS4ERR_WRONG_LFS = 10092,
NFS4ERR_BADLABEL = 10093,
+ NFS4ERR_OFFLOAD_NO_REQS = 10094,
};
static inline bool seqid_mutating_err(u32 err)
--
cgit v1.2.1
From abdc08a3a263a20e49534a36291d657bf53dda5b Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Tue, 19 Aug 2014 10:06:09 -0700
Subject: gpio: change gpiochip_request_own_desc() prototype
The current prototype of gpiochip_request_own_desc() requires to obtain
a pointer to a descriptor. This is in contradiction to all other GPIO
request schemes, and imposes an extra step of obtaining a descriptor to
drivers. Most drivers actually cannot even perform that step since the
function that does it (gpichip_get_desc()) is gpiolib-private.
Change gpiochip_request_own_desc() to return a descriptor from a
(chip, hwnum) tuple and update users of this function (currently
gpiolib-acpi only).
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/gpio/driver.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index e78a2373e374..a2de58fffd19 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -166,7 +166,8 @@ int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
#endif /* CONFIG_GPIO_IRQCHIP */
-int gpiochip_request_own_desc(struct gpio_desc *desc, const char *label);
+struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum,
+ const char *label);
void gpiochip_free_own_desc(struct gpio_desc *desc);
#else /* CONFIG_GPIOLIB */
--
cgit v1.2.1
From 7179569aeb52197fd2a9909ba226c4c9cc0e2e2a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Heiko=20St=C3=BCbner?= <heiko@sntech.de>
Date: Thu, 28 Aug 2014 12:36:04 -0700
Subject: regulator: core: Add REGULATOR_EVENT_PRE_VOLTAGE_CHANGE (and ABORT)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In some cases we need to know when a regulator is about to be changed.
Add a way for clients to be notified. Note that for set_voltage() we
don't necessarily know what voltage we'll end up with, so we tell the
client what the range will be so they can prepare.
Signed-off-by: Heiko Stübner <heiko@sntech.de>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie+linaro@kernel.org>
---
include/linux/regulator/consumer.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
(limited to 'include')
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index f8a8733068a7..d347c805f923 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -93,7 +93,12 @@ struct regmap;
* OVER_TEMP Regulator over temp.
* FORCE_DISABLE Regulator forcibly shut down by software.
* VOLTAGE_CHANGE Regulator voltage changed.
+ * Data passed is old voltage cast to (void *).
* DISABLE Regulator was disabled.
+ * PRE_VOLTAGE_CHANGE Regulator is about to have voltage changed.
+ * Data passed is "struct pre_voltage_change_data"
+ * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason.
+ * Data passed is old voltage cast to (void *).
*
* NOTE: These events can be OR'ed together when passed into handler.
*/
@@ -106,6 +111,21 @@ struct regmap;
#define REGULATOR_EVENT_FORCE_DISABLE 0x20
#define REGULATOR_EVENT_VOLTAGE_CHANGE 0x40
#define REGULATOR_EVENT_DISABLE 0x80
+#define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE 0x100
+#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200
+
+/**
+ * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event
+ *
+ * @old_uV: Current voltage before change.
+ * @min_uV: Min voltage we'll change to.
+ * @max_uV: Max voltage we'll change to.
+ */
+struct pre_voltage_change_data {
+ unsigned long old_uV;
+ unsigned long min_uV;
+ unsigned long max_uV;
+};
struct regulator;
--
cgit v1.2.1
From 0f8a4de3e088797576ac76200b634b802e5c7781 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Tue, 26 Aug 2014 14:00:37 +0200
Subject: KVM: Unconditionally export KVM_CAP_READONLY_MEM
The idea between capabilities and the KVM_CHECK_EXTENSION ioctl is that
userspace can, at run-time, determine if a feature is supported or not.
This allows KVM to being supporting a new feature with a new kernel
version without any need to update user space. Unfortunately, since the
definition of KVM_CAP_READONLY_MEM was guarded by #ifdef
__KVM_HAVE_READONLY_MEM, such discovery still required a user space
update.
Therefore, unconditionally export KVM_CAP_READONLY_MEM and change the
in-kernel conditional to rely on __KVM_HAVE_READONLY_MEM.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/uapi/linux/kvm.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index cf3a2ff440e4..90d3edab839c 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -738,9 +738,7 @@ struct kvm_ppc_smmu_info {
#define KVM_CAP_PPC_GET_SMMU_INFO 78
#define KVM_CAP_S390_COW 79
#define KVM_CAP_PPC_ALLOC_HTAB 80
-#ifdef __KVM_HAVE_READONLY_MEM
#define KVM_CAP_READONLY_MEM 81
-#endif
#define KVM_CAP_IRQFD_RESAMPLE 82
#define KVM_CAP_PPC_BOOKE_WATCHDOG 83
#define KVM_CAP_PPC_HTAB_FD 84
--
cgit v1.2.1
From 44b5ce73c99c389817be71b9161bceb197d40ecb Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Tue, 26 Aug 2014 14:00:38 +0200
Subject: KVM: Unconditionally export KVM_CAP_USER_NMI
The idea between capabilities and the KVM_CHECK_EXTENSION ioctl is that
userspace can, at run-time, determine if a feature is supported or not.
This allows KVM to being supporting a new feature with a new kernel
version without any need to update user space. Unfortunately, since the
definition of KVM_CAP_USER_NMI was guarded by #ifdef
__KVM_HAVE_USER_NMI, such discovery still required a user space update.
Therefore, unconditionally export KVM_CAP_USER_NMI and change the
the typo in the comment for the IOCTL number definition as well.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/uapi/linux/kvm.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 90d3edab839c..0695a1e3e332 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -654,9 +654,7 @@ struct kvm_ppc_smmu_info {
#endif
/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
-#ifdef __KVM_HAVE_USER_NMI
#define KVM_CAP_USER_NMI 22
-#endif
#ifdef __KVM_HAVE_GUEST_DEBUG
#define KVM_CAP_SET_GUEST_DEBUG 23
#endif
@@ -1091,7 +1089,7 @@ struct kvm_s390_ucas_mapping {
#define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)
#define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state)
#define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state)
-/* Available with KVM_CAP_NMI */
+/* Available with KVM_CAP_USER_NMI */
#define KVM_NMI _IO(KVMIO, 0x9a)
/* Available with KVM_CAP_SET_GUEST_DEBUG */
#define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug)
--
cgit v1.2.1
From 656473003bc7e056c3bbd4a4d9832dad01e86f76 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 29 Aug 2014 14:01:17 +0200
Subject: KVM: forward declare structs in kvm_types.h
Opaque KVM structs are useful for prototypes in asm/kvm_host.h, to avoid
"'struct foo' declared inside parameter list" warnings (and consequent
breakage due to conflicting types).
Move them from individual files to a generic place in linux/kvm_types.h.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 6 ------
include/linux/kvm_types.h | 14 ++++++++++++++
2 files changed, 14 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ebd723676633..e1cb915a1096 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -140,8 +140,6 @@ static inline bool is_error_page(struct page *page)
#define KVM_USERSPACE_IRQ_SOURCE_ID 0
#define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID 1
-struct kvm;
-struct kvm_vcpu;
extern struct kmem_cache *kvm_vcpu_cache;
extern spinlock_t kvm_lock;
@@ -325,8 +323,6 @@ struct kvm_kernel_irq_routing_entry {
struct hlist_node link;
};
-struct kvm_irq_routing_table;
-
#ifndef KVM_PRIVATE_MEM_SLOTS
#define KVM_PRIVATE_MEM_SLOTS 0
#endif
@@ -1036,8 +1032,6 @@ static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu)
extern bool kvm_rebooting;
-struct kvm_device_ops;
-
struct kvm_device {
struct kvm_device_ops *ops;
struct kvm *kvm;
diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h
index b0bcce0ddc95..b606bb689a3e 100644
--- a/include/linux/kvm_types.h
+++ b/include/linux/kvm_types.h
@@ -17,6 +17,20 @@
#ifndef __KVM_TYPES_H__
#define __KVM_TYPES_H__
+struct kvm;
+struct kvm_async_pf;
+struct kvm_device_ops;
+struct kvm_interrupt;
+struct kvm_irq_routing_table;
+struct kvm_memory_slot;
+struct kvm_one_reg;
+struct kvm_run;
+struct kvm_userspace_memory_region;
+struct kvm_vcpu;
+struct kvm_vcpu_init;
+
+enum kvm_mr_change;
+
#include <asm/types.h>
/*
--
cgit v1.2.1
From 13a34e067eab24fec882e1834fbf2cc31911d474 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@redhat.com>
Date: Thu, 28 Aug 2014 15:13:03 +0200
Subject: KVM: remove garbage arg to *hardware_{en,dis}able
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In the beggining was on_each_cpu(), which required an unused argument to
kvm_arch_ops.hardware_{en,dis}able, but this was soon forgotten.
Remove unnecessary arguments that stem from this.
Signed-off-by: Radim KrÄmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index e1cb915a1096..e098dce179df 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -630,8 +630,8 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
-int kvm_arch_hardware_enable(void *garbage);
-void kvm_arch_hardware_disable(void *garbage);
+int kvm_arch_hardware_enable(void);
+void kvm_arch_hardware_disable(void);
int kvm_arch_hardware_setup(void);
void kvm_arch_hardware_unsetup(void);
void kvm_arch_check_processor_compat(void *rtn);
--
cgit v1.2.1
From 10c51b56232d24f150e39884a9e749fd99cbc60c Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 27 Aug 2014 11:11:27 +0200
Subject: net: add skb_get_tx_queue() helper
Replace occurences of skb_get_queue_mapping() and follow-up
netdev_get_tx_queue() with an actual helper function.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 429801370d0c..dfc1d8b8bd0f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1747,6 +1747,12 @@ struct netdev_queue *netdev_get_tx_queue(const struct net_device *dev,
return &dev->_tx[index];
}
+static inline struct netdev_queue *skb_get_tx_queue(const struct net_device *dev,
+ const struct sk_buff *skb)
+{
+ return netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
+}
+
static inline void netdev_for_each_tx_queue(struct net_device *dev,
void (*f)(struct net_device *,
struct netdev_queue *,
--
cgit v1.2.1
From 18fe8db5f2b53e4ac67b47048f24f50c57a2a759 Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Thu, 28 Aug 2014 13:44:31 +0200
Subject: include/linux/cycx_x25.h: Remove unused header
The header file include/linux/cycx_x25.h does not seem to be used
anywhere. It was orphaned by 6fcdf4facb "wanrouter: delete now
orphaned header content, files/drivers". Remove it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/cycx_x25.h | 125 -----------------------------------------------
1 file changed, 125 deletions(-)
delete mode 100644 include/linux/cycx_x25.h
(limited to 'include')
diff --git a/include/linux/cycx_x25.h b/include/linux/cycx_x25.h
deleted file mode 100644
index 362bf19d6cf1..000000000000
--- a/include/linux/cycx_x25.h
+++ /dev/null
@@ -1,125 +0,0 @@
-#ifndef _CYCX_X25_H
-#define _CYCX_X25_H
-/*
-* cycx_x25.h Cyclom X.25 firmware API definitions.
-*
-* Author: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
-*
-* Copyright: (c) 1998-2003 Arnaldo Carvalho de Melo
-*
-* Based on sdla_x25.h by Gene Kozin <74604.152@compuserve.com>
-*
-* This program is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License
-* as published by the Free Software Foundation; either version
-* 2 of the License, or (at your option) any later version.
-* ============================================================================
-* 2000/04/02 acme dprintk and cycx_debug
-* 1999/01/03 acme judicious use of data types
-* 1999/01/02 acme #define X25_ACK_N3 0x4411
-* 1998/12/28 acme cleanup: lot'o'things removed
-* commands listed,
-* TX25Cmd & TX25Config structs
-* typedef'ed
-*/
-#ifndef PACKED
-#define PACKED __attribute__((packed))
-#endif
-
-/* X.25 shared memory layout. */
-#define X25_MBOX_OFFS 0x300 /* general mailbox block */
-#define X25_RXMBOX_OFFS 0x340 /* receive mailbox */
-
-/* Debug */
-#define dprintk(level, format, a...) if (cycx_debug >= level) printk(format, ##a)
-
-extern unsigned int cycx_debug;
-
-/* Data Structures */
-/* X.25 Command Block. */
-struct cycx_x25_cmd {
- u16 command;
- u16 link; /* values: 0 or 1 */
- u16 len; /* values: 0 thru 0x205 (517) */
- u32 buf;
-} PACKED;
-
-/* Defines for the 'command' field. */
-#define X25_CONNECT_REQUEST 0x4401
-#define X25_CONNECT_RESPONSE 0x4402
-#define X25_DISCONNECT_REQUEST 0x4403
-#define X25_DISCONNECT_RESPONSE 0x4404
-#define X25_DATA_REQUEST 0x4405
-#define X25_ACK_TO_VC 0x4406
-#define X25_INTERRUPT_RESPONSE 0x4407
-#define X25_CONFIG 0x4408
-#define X25_CONNECT_INDICATION 0x4409
-#define X25_CONNECT_CONFIRM 0x440A
-#define X25_DISCONNECT_INDICATION 0x440B
-#define X25_DISCONNECT_CONFIRM 0x440C
-#define X25_DATA_INDICATION 0x440E
-#define X25_INTERRUPT_INDICATION 0x440F
-#define X25_ACK_FROM_VC 0x4410
-#define X25_ACK_N3 0x4411
-#define X25_CONNECT_COLLISION 0x4413
-#define X25_N3WIN 0x4414
-#define X25_LINE_ON 0x4415
-#define X25_LINE_OFF 0x4416
-#define X25_RESET_REQUEST 0x4417
-#define X25_LOG 0x4500
-#define X25_STATISTIC 0x4600
-#define X25_TRACE 0x4700
-#define X25_N2TRACEXC 0x4702
-#define X25_N3TRACEXC 0x4703
-
-/**
- * struct cycx_x25_config - cyclom2x x25 firmware configuration
- * @link - link number
- * @speed - line speed
- * @clock - internal/external
- * @n2 - # of level 2 retransm.(values: 1 thru FF)
- * @n2win - level 2 window (values: 1 thru 7)
- * @n3win - level 3 window (values: 1 thru 7)
- * @nvc - # of logical channels (values: 1 thru 64)
- * @pktlen - level 3 packet length - log base 2 of size
- * @locaddr - my address
- * @remaddr - remote address
- * @t1 - time, in seconds
- * @t2 - time, in seconds
- * @t21 - time, in seconds
- * @npvc - # of permanent virt. circuits (1 thru nvc)
- * @t23 - time, in seconds
- * @flags - see dosx25.doc, in portuguese, for details
- */
-struct cycx_x25_config {
- u8 link;
- u8 speed;
- u8 clock;
- u8 n2;
- u8 n2win;
- u8 n3win;
- u8 nvc;
- u8 pktlen;
- u8 locaddr;
- u8 remaddr;
- u16 t1;
- u16 t2;
- u8 t21;
- u8 npvc;
- u8 t23;
- u8 flags;
-} PACKED;
-
-struct cycx_x25_stats {
- u16 rx_crc_errors;
- u16 rx_over_errors;
- u16 n2_tx_frames;
- u16 n2_rx_frames;
- u16 tx_timeouts;
- u16 rx_timeouts;
- u16 n3_tx_packets;
- u16 n3_rx_packets;
- u16 tx_aborts;
- u16 rx_aborts;
-} PACKED;
-#endif /* _CYCX_X25_H */
--
cgit v1.2.1
From fbd74659d4513816a6249b0db491e8d831803520 Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Thu, 28 Aug 2014 13:44:32 +0200
Subject: include/linux/i82593.h: Remove unused header
The header file include/linux/i82593.h does not seem to be used
anywhere. It was orphaned by 8a594170 "drivers/net: delete intel
i825xx based znet notebook driver". Remove it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/i82593.h | 229 -------------------------------------------------
1 file changed, 229 deletions(-)
delete mode 100644 include/linux/i82593.h
(limited to 'include')
diff --git a/include/linux/i82593.h b/include/linux/i82593.h
deleted file mode 100644
index afac5c7a323d..000000000000
--- a/include/linux/i82593.h
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * Definitions for Intel 82593 CSMA/CD Core LAN Controller
- * The definitions are taken from the 1992 users manual with Intel
- * order number 297125-001.
- *
- * /usr/src/pc/RCS/i82593.h,v 1.1 1996/07/17 15:23:12 root Exp
- *
- * Copyright 1994, Anders Klemets <klemets@it.kth.se>
- *
- * HISTORY
- * i82593.h,v
- * Revision 1.4 2005/11/4 09:15:00 baroniunas
- * Modified copyright with permission of author as follows:
- *
- * "If I82539.H is the only file with my copyright statement
- * that is included in the Source Forge project, then you have
- * my approval to change the copyright statement to be a GPL
- * license, in the way you proposed on October 10."
- *
- * Revision 1.1 1996/07/17 15:23:12 root
- * Initial revision
- *
- * Revision 1.3 1995/04/05 15:13:58 adj
- * Initial alpha release
- *
- * Revision 1.2 1994/06/16 23:57:31 klemets
- * Mirrored all the fields in the configuration block.
- *
- * Revision 1.1 1994/06/02 20:25:34 klemets
- * Initial revision
- *
- *
- */
-#ifndef _I82593_H
-#define _I82593_H
-
-/* Intel 82593 CSMA/CD Core LAN Controller */
-
-/* Port 0 Command Register definitions */
-
-/* Execution operations */
-#define OP0_NOP 0 /* CHNL = 0 */
-#define OP0_SWIT_TO_PORT_1 0 /* CHNL = 1 */
-#define OP0_IA_SETUP 1
-#define OP0_CONFIGURE 2
-#define OP0_MC_SETUP 3
-#define OP0_TRANSMIT 4
-#define OP0_TDR 5
-#define OP0_DUMP 6
-#define OP0_DIAGNOSE 7
-#define OP0_TRANSMIT_NO_CRC 9
-#define OP0_RETRANSMIT 12
-#define OP0_ABORT 13
-/* Reception operations */
-#define OP0_RCV_ENABLE 8
-#define OP0_RCV_DISABLE 10
-#define OP0_STOP_RCV 11
-/* Status pointer control operations */
-#define OP0_FIX_PTR 15 /* CHNL = 1 */
-#define OP0_RLS_PTR 15 /* CHNL = 0 */
-#define OP0_RESET 14
-
-#define CR0_CHNL (1 << 4) /* 0=Channel 0, 1=Channel 1 */
-#define CR0_STATUS_0 0x00
-#define CR0_STATUS_1 0x20
-#define CR0_STATUS_2 0x40
-#define CR0_STATUS_3 0x60
-#define CR0_INT_ACK (1 << 7) /* 0=No ack, 1=acknowledge */
-
-/* Port 0 Status Register definitions */
-
-#define SR0_NO_RESULT 0 /* dummy */
-#define SR0_EVENT_MASK 0x0f
-#define SR0_IA_SETUP_DONE 1
-#define SR0_CONFIGURE_DONE 2
-#define SR0_MC_SETUP_DONE 3
-#define SR0_TRANSMIT_DONE 4
-#define SR0_TDR_DONE 5
-#define SR0_DUMP_DONE 6
-#define SR0_DIAGNOSE_PASSED 7
-#define SR0_TRANSMIT_NO_CRC_DONE 9
-#define SR0_RETRANSMIT_DONE 12
-#define SR0_EXECUTION_ABORTED 13
-#define SR0_END_OF_FRAME 8
-#define SR0_RECEPTION_ABORTED 10
-#define SR0_DIAGNOSE_FAILED 15
-#define SR0_STOP_REG_HIT 11
-
-#define SR0_CHNL (1 << 4)
-#define SR0_EXECUTION (1 << 5)
-#define SR0_RECEPTION (1 << 6)
-#define SR0_INTERRUPT (1 << 7)
-#define SR0_BOTH_RX_TX (SR0_EXECUTION | SR0_RECEPTION)
-
-#define SR3_EXEC_STATE_MASK 0x03
-#define SR3_EXEC_IDLE 0
-#define SR3_TX_ABORT_IN_PROGRESS 1
-#define SR3_EXEC_ACTIVE 2
-#define SR3_ABORT_IN_PROGRESS 3
-#define SR3_EXEC_CHNL (1 << 2)
-#define SR3_STP_ON_NO_RSRC (1 << 3)
-#define SR3_RCVING_NO_RSRC (1 << 4)
-#define SR3_RCV_STATE_MASK 0x60
-#define SR3_RCV_IDLE 0x00
-#define SR3_RCV_READY 0x20
-#define SR3_RCV_ACTIVE 0x40
-#define SR3_RCV_STOP_IN_PROG 0x60
-#define SR3_RCV_CHNL (1 << 7)
-
-/* Port 1 Command Register definitions */
-
-#define OP1_NOP 0
-#define OP1_SWIT_TO_PORT_0 1
-#define OP1_INT_DISABLE 2
-#define OP1_INT_ENABLE 3
-#define OP1_SET_TS 5
-#define OP1_RST_TS 7
-#define OP1_POWER_DOWN 8
-#define OP1_RESET_RING_MNGMT 11
-#define OP1_RESET 14
-#define OP1_SEL_RST 15
-
-#define CR1_STATUS_4 0x00
-#define CR1_STATUS_5 0x20
-#define CR1_STATUS_6 0x40
-#define CR1_STOP_REG_UPDATE (1 << 7)
-
-/* Receive frame status bits */
-
-#define RX_RCLD (1 << 0)
-#define RX_IA_MATCH (1 << 1)
-#define RX_NO_AD_MATCH (1 << 2)
-#define RX_NO_SFD (1 << 3)
-#define RX_SRT_FRM (1 << 7)
-#define RX_OVRRUN (1 << 8)
-#define RX_ALG_ERR (1 << 10)
-#define RX_CRC_ERR (1 << 11)
-#define RX_LEN_ERR (1 << 12)
-#define RX_RCV_OK (1 << 13)
-#define RX_TYP_LEN (1 << 15)
-
-/* Transmit status bits */
-
-#define TX_NCOL_MASK 0x0f
-#define TX_FRTL (1 << 4)
-#define TX_MAX_COL (1 << 5)
-#define TX_HRT_BEAT (1 << 6)
-#define TX_DEFER (1 << 7)
-#define TX_UND_RUN (1 << 8)
-#define TX_LOST_CTS (1 << 9)
-#define TX_LOST_CRS (1 << 10)
-#define TX_LTCOL (1 << 11)
-#define TX_OK (1 << 13)
-#define TX_COLL (1 << 15)
-
-struct i82593_conf_block {
- u_char fifo_limit : 4,
- forgnesi : 1,
- fifo_32 : 1,
- d6mod : 1,
- throttle_enb : 1;
- u_char throttle : 6,
- cntrxint : 1,
- contin : 1;
- u_char addr_len : 3,
- acloc : 1,
- preamb_len : 2,
- loopback : 2;
- u_char lin_prio : 3,
- tbofstop : 1,
- exp_prio : 3,
- bof_met : 1;
- u_char : 4,
- ifrm_spc : 4;
- u_char : 5,
- slottim_low : 3;
- u_char slottim_hi : 3,
- : 1,
- max_retr : 4;
- u_char prmisc : 1,
- bc_dis : 1,
- : 1,
- crs_1 : 1,
- nocrc_ins : 1,
- crc_1632 : 1,
- : 1,
- crs_cdt : 1;
- u_char cs_filter : 3,
- crs_src : 1,
- cd_filter : 3,
- : 1;
- u_char : 2,
- min_fr_len : 6;
- u_char lng_typ : 1,
- lng_fld : 1,
- rxcrc_xf : 1,
- artx : 1,
- sarec : 1,
- tx_jabber : 1, /* why is this called max_len in the manual? */
- hash_1 : 1,
- lbpkpol : 1;
- u_char : 6,
- fdx : 1,
- : 1;
- u_char dummy_6 : 6, /* supposed to be ones */
- mult_ia : 1,
- dis_bof : 1;
- u_char dummy_1 : 1, /* supposed to be one */
- tx_ifs_retrig : 2,
- mc_all : 1,
- rcv_mon : 2,
- frag_acpt : 1,
- tstrttrs : 1;
- u_char fretx : 1,
- runt_eop : 1,
- hw_sw_pin : 1,
- big_endn : 1,
- syncrqs : 1,
- sttlen : 1,
- tx_eop : 1,
- rx_eop : 1;
- u_char rbuf_size : 5,
- rcvstop : 1,
- : 2;
-};
-
-#define I82593_MAX_MULTICAST_ADDRESSES 128 /* Hardware hashed filter */
-
-#endif /* _I82593_H */
--
cgit v1.2.1
From 6fb7c3778f0fba0bad099c30e834c413c4f8bcb5 Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Thu, 28 Aug 2014 13:44:33 +0200
Subject: include/linux/phonedev.h: Remove unused header
The header file include/linux/phonedev.h does not seem to be used
anywhere. It was orphaned by 7326446c "Staging: remove telephony
drivers". Remove it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/phonedev.h | 25 -------------------------
1 file changed, 25 deletions(-)
delete mode 100644 include/linux/phonedev.h
(limited to 'include')
diff --git a/include/linux/phonedev.h b/include/linux/phonedev.h
deleted file mode 100644
index 4269de99e320..000000000000
--- a/include/linux/phonedev.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef __LINUX_PHONEDEV_H
-#define __LINUX_PHONEDEV_H
-
-#include <linux/types.h>
-
-#ifdef __KERNEL__
-
-#include <linux/poll.h>
-
-struct phone_device {
- struct phone_device *next;
- const struct file_operations *f_op;
- int (*open) (struct phone_device *, struct file *);
- int board; /* Device private index */
- int minor;
-};
-
-extern int phonedev_init(void);
-#define PHONE_MAJOR 100
-extern int phone_register_device(struct phone_device *, int unit);
-#define PHONE_UNIT_ANY -1
-extern void phone_unregister_device(struct phone_device *);
-
-#endif
-#endif
--
cgit v1.2.1
From 918bbc4ffdb84e9d2696315e427a6c43de65bc01 Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Thu, 28 Aug 2014 13:44:34 +0200
Subject: include/rxrpc/types.h: Remove unused header
The header file include/rxrpc/types.h does not seem to be used
anywhere. It was orphaned by 63b6be55 "[AF_RXRPC]: Delete the old
RxRPC code.". Remove it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/rxrpc/types.h | 41 -----------------------------------------
1 file changed, 41 deletions(-)
delete mode 100644 include/rxrpc/types.h
(limited to 'include')
diff --git a/include/rxrpc/types.h b/include/rxrpc/types.h
deleted file mode 100644
index 30d48f6da228..000000000000
--- a/include/rxrpc/types.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* types.h: Rx types
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_TYPES_H
-#define _LINUX_RXRPC_TYPES_H
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/socket.h>
-#include <linux/in.h>
-#include <linux/spinlock.h>
-#include <linux/atomic.h>
-
-typedef uint32_t rxrpc_seq_t; /* Rx message sequence number */
-typedef uint32_t rxrpc_serial_t; /* Rx message serial number */
-typedef __be32 rxrpc_seq_net_t; /* on-the-wire Rx message sequence number */
-typedef __be32 rxrpc_serial_net_t; /* on-the-wire Rx message serial number */
-
-struct rxrpc_call;
-struct rxrpc_connection;
-struct rxrpc_header;
-struct rxrpc_message;
-struct rxrpc_operation;
-struct rxrpc_peer;
-struct rxrpc_service;
-typedef struct rxrpc_timer rxrpc_timer_t;
-struct rxrpc_transport;
-
-typedef void (*rxrpc_call_attn_func_t)(struct rxrpc_call *call);
-typedef void (*rxrpc_call_error_func_t)(struct rxrpc_call *call);
-typedef void (*rxrpc_call_aemap_func_t)(struct rxrpc_call *call);
-
-#endif /* _LINUX_RXRPC_TYPES_H */
--
cgit v1.2.1
From de20fe8e2cc3c4ca13fdb529e6720d9d199333fe Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Wed, 27 Aug 2014 21:26:35 -0700
Subject: net: Allocate a new 16 bits for flags in skbuff
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index b69b7b512c06..3c9574c80933 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -598,6 +598,10 @@ struct sk_buff {
__u32 reserved_tailroom;
};
+ kmemcheck_bitfield_begin(flags3);
+ /* 16 bit hole */
+ kmemcheck_bitfield_end(flags3);
+
__be16 inner_protocol;
__u16 inner_transport_header;
__u16 inner_network_header;
--
cgit v1.2.1
From 77cffe23c1f88835f6bd7b47bfa0c060c2969828 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Wed, 27 Aug 2014 21:26:46 -0700
Subject: net: Clarification of CHECKSUM_UNNECESSARY
This patch:
- Clarifies the specific requirements of devices returning
CHECKSUM_UNNECESSARY (comments in skbuff.h).
- Adds csum_level field to skbuff. This is used to express how
many checksums are covered by CHECKSUM_UNNECESSARY (stores n - 1).
This replaces the overloading of skb->encapsulation, that field is
is now only used to indicate inner headers are valid.
- Change __skb_checksum_validate_needed to "consume" each checksum
as indicated by csum_level as layers of the the packet are parsed.
- Remove skb_pop_rcv_encapsulation, no longer needed in the new
csum_level model.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 74 ++++++++++++++++++++++++++++++++++----------------
1 file changed, 51 insertions(+), 23 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 3c9574c80933..c93b5859a772 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -47,11 +47,29 @@
*
* The hardware you're dealing with doesn't calculate the full checksum
* (as in CHECKSUM_COMPLETE), but it does parse headers and verify checksums
- * for specific protocols e.g. TCP/UDP/SCTP, then, for such packets it will
- * set CHECKSUM_UNNECESSARY if their checksums are okay. skb->csum is still
- * undefined in this case though. It is a bad option, but, unfortunately,
- * nowadays most vendors do this. Apparently with the secret goal to sell
- * you new devices, when you will add new protocol to your host, f.e. IPv6 8)
+ * for specific protocols. For such packets it will set CHECKSUM_UNNECESSARY
+ * if their checksums are okay. skb->csum is still undefined in this case
+ * though. It is a bad option, but, unfortunately, nowadays most vendors do
+ * this. Apparently with the secret goal to sell you new devices, when you
+ * will add new protocol to your host, f.e. IPv6 8)
+ *
+ * CHECKSUM_UNNECESSARY is applicable to following protocols:
+ * TCP: IPv6 and IPv4.
+ * UDP: IPv4 and IPv6. A device may apply CHECKSUM_UNNECESSARY to a
+ * zero UDP checksum for either IPv4 or IPv6, the networking stack
+ * may perform further validation in this case.
+ * GRE: only if the checksum is present in the header.
+ * SCTP: indicates the CRC in SCTP header has been validated.
+ *
+ * skb->csum_level indicates the number of consecutive checksums found in
+ * the packet minus one that have been verified as CHECKSUM_UNNECESSARY.
+ * For instance if a device receives an IPv6->UDP->GRE->IPv4->TCP packet
+ * and a device is able to verify the checksums for UDP (possibly zero),
+ * GRE (checksum flag is set), and TCP-- skb->csum_level would be set to
+ * two. If the device were only able to verify the UDP checksum and not
+ * GRE, either because it doesn't support GRE checksum of because GRE
+ * checksum is bad, skb->csum_level would be set to zero (TCP checksum is
+ * not considered in this case).
*
* CHECKSUM_COMPLETE:
*
@@ -112,6 +130,9 @@
#define CHECKSUM_COMPLETE 2
#define CHECKSUM_PARTIAL 3
+/* Maximum value in skb->csum_level */
+#define SKB_MAX_CSUM_LEVEL 3
+
#define SKB_DATA_ALIGN(X) ALIGN(X, SMP_CACHE_BYTES)
#define SKB_WITH_OVERHEAD(X) \
((X) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
@@ -571,11 +592,7 @@ struct sk_buff {
__u8 wifi_acked:1;
__u8 no_fcs:1;
__u8 head_frag:1;
- /* Encapsulation protocol and NIC drivers should use
- * this flag to indicate to each other if the skb contains
- * encapsulated packet or not and maybe use the inner packet
- * headers if needed
- */
+ /* Indicates the inner headers are valid in the skbuff. */
__u8 encapsulation:1;
__u8 encap_hdr_csum:1;
__u8 csum_valid:1;
@@ -599,7 +616,8 @@ struct sk_buff {
};
kmemcheck_bitfield_begin(flags3);
- /* 16 bit hole */
+ __u8 csum_level:2;
+ /* 14 bit hole */
kmemcheck_bitfield_end(flags3);
__be16 inner_protocol;
@@ -1866,18 +1884,6 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
return pskb_may_pull(skb, skb_network_offset(skb) + len);
}
-static inline void skb_pop_rcv_encapsulation(struct sk_buff *skb)
-{
- /* Only continue with checksum unnecessary if device indicated
- * it is valid across encapsulation (skb->encapsulation was set).
- */
- if (skb->ip_summed == CHECKSUM_UNNECESSARY && !skb->encapsulation)
- skb->ip_summed = CHECKSUM_NONE;
-
- skb->encapsulation = 0;
- skb->csum_valid = 0;
-}
-
/*
* CPUs often take a performance hit when accessing unaligned memory
* locations. The actual performance hit varies, it can be small if the
@@ -2798,6 +2804,27 @@ static inline __sum16 skb_checksum_complete(struct sk_buff *skb)
0 : __skb_checksum_complete(skb);
}
+static inline void __skb_decr_checksum_unnecessary(struct sk_buff *skb)
+{
+ if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ if (skb->csum_level == 0)
+ skb->ip_summed = CHECKSUM_NONE;
+ else
+ skb->csum_level--;
+ }
+}
+
+static inline void __skb_incr_checksum_unnecessary(struct sk_buff *skb)
+{
+ if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ if (skb->csum_level < SKB_MAX_CSUM_LEVEL)
+ skb->csum_level++;
+ } else if (skb->ip_summed == CHECKSUM_NONE) {
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->csum_level = 0;
+ }
+}
+
/* Check if we need to perform checksum complete validation.
*
* Returns true if checksum complete is needed, false otherwise
@@ -2809,6 +2836,7 @@ static inline bool __skb_checksum_validate_needed(struct sk_buff *skb,
{
if (skb_csum_unnecessary(skb) || (zero_okay && !check)) {
skb->csum_valid = 1;
+ __skb_decr_checksum_unnecessary(skb);
return false;
}
--
cgit v1.2.1
From 662880f4420340aad4f9a62a349c6c9d4faa1a5d Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Wed, 27 Aug 2014 21:26:56 -0700
Subject: net: Allow GRO to use and set levels of checksum unnecessary
Allow GRO path to "consume" checksums provided in CHECKSUM_UNNECESSARY
and to report new checksums verfied for use in fallback to normal
path.
Change GRO checksum path to track csum_level using a csum_cnt field
in NAPI_GRO_CB. On GRO initialization, if ip_summed is
CHECKSUM_UNNECESSARY set NAPI_GRO_CB(skb)->csum_cnt to
skb->csum_level + 1. For each checksum verified, decrement
NAPI_GRO_CB(skb)->csum_cnt while its greater than zero. If a checksum
is verfied and NAPI_GRO_CB(skb)->csum_cnt == 0, we have verified a
deeper checksum than originally indicated in skbuf so increment
csum_level (or initialize to CHECKSUM_UNNECESSARY if ip_summed is
CHECKSUM_NONE or CHECKSUM_COMPLETE).
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 26 ++++++++++++--------------
1 file changed, 12 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index dfc1d8b8bd0f..456eb1fe51e8 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1883,8 +1883,8 @@ struct napi_gro_cb {
/* GRO checksum is valid */
u8 csum_valid:1;
- /* Number encapsulation layers crossed */
- u8 encapsulation;
+ /* Number of checksums via CHECKSUM_UNNECESSARY */
+ u8 csum_cnt:3;
/* used to support CHECKSUM_COMPLETE for tunneling protocols */
__wsum csum;
@@ -2179,8 +2179,7 @@ static inline bool __skb_gro_checksum_validate_needed(struct sk_buff *skb,
__sum16 check)
{
return (skb->ip_summed != CHECKSUM_PARTIAL &&
- (skb->ip_summed != CHECKSUM_UNNECESSARY ||
- (NAPI_GRO_CB(skb)->encapsulation > skb->encapsulation)) &&
+ NAPI_GRO_CB(skb)->csum_cnt == 0 &&
(!zero_okay || check));
}
@@ -2196,18 +2195,17 @@ static inline __sum16 __skb_gro_checksum_validate_complete(struct sk_buff *skb,
return __skb_gro_checksum_complete(skb);
}
-/* Update skb for CHECKSUM_UNNECESSARY when we verified a top level
- * checksum or an encapsulated one during GRO. This saves work
- * if we fallback to normal path with the packet.
- */
static inline void skb_gro_incr_csum_unnecessary(struct sk_buff *skb)
{
- if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
- if (NAPI_GRO_CB(skb)->encapsulation)
- skb->encapsulation = 1;
- } else if (skb->ip_summed != CHECKSUM_PARTIAL) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->encapsulation = 0;
+ if (NAPI_GRO_CB(skb)->csum_cnt > 0) {
+ /* Consume a checksum from CHECKSUM_UNNECESSARY */
+ NAPI_GRO_CB(skb)->csum_cnt--;
+ } else {
+ /* Update skb for CHECKSUM_UNNECESSARY and csum_level when we
+ * verified a new top level checksum or an encapsulated one
+ * during GRO. This saves work if we fallback to normal path.
+ */
+ __skb_incr_checksum_unnecessary(skb);
}
}
--
cgit v1.2.1
From dd7cfd641228abb2669d8d047d5ec377b1835900 Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Tue, 21 Jan 2014 13:07:31 +0100
Subject: drm/ttm: kill fence_lock
No users are left, kill it off! :D
Conversion to the reservation api is next on the list, after
that the functionality can be restored with rcu.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
---
include/drm/ttm/ttm_bo_api.h | 5 +----
include/drm/ttm/ttm_bo_driver.h | 3 ---
2 files changed, 1 insertion(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index e3d39c80a091..5805f4a49478 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -237,10 +237,7 @@ struct ttm_buffer_object {
struct list_head io_reserve_lru;
/**
- * Members protected by struct buffer_object_device::fence_lock
- * In addition, setting sync_obj to anything else
- * than NULL requires bo::reserved to be held. This allows for
- * checking NULL while reserved but not holding the mentioned lock.
+ * Members protected by a bo reservation.
*/
void *sync_obj;
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 5c8bb5699a6f..e1ee141e26cc 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -521,8 +521,6 @@ struct ttm_bo_global {
*
* @driver: Pointer to a struct ttm_bo_driver struct setup by the driver.
* @man: An array of mem_type_managers.
- * @fence_lock: Protects the synchronizing members on *all* bos belonging
- * to this device.
* @vma_manager: Address space manager
* lru_lock: Spinlock that protects the buffer+device lru lists and
* ddestroy lists.
@@ -542,7 +540,6 @@ struct ttm_bo_device {
struct ttm_bo_global *glob;
struct ttm_bo_driver *driver;
struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES];
- spinlock_t fence_lock;
/*
* Protected by internal locks.
--
cgit v1.2.1
From 58b4d720c1620bbf09e42b4f218dcb2d0d8cdf3e Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Thu, 9 Jan 2014 11:03:08 +0100
Subject: drm/ttm: add interruptible parameter to ttm_eu_reserve_buffers
It seems some drivers really want this as a parameter,
like vmwgfx.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
---
include/drm/ttm/ttm_execbuf_util.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
index 16db7d01a336..fd95fd569ca3 100644
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -73,6 +73,7 @@ extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
* @ticket: [out] ww_acquire_ctx filled in by call, or NULL if only
* non-blocking reserves should be tried.
* @list: thread private list of ttm_validate_buffer structs.
+ * @intr: should the wait be interruptible
*
* Tries to reserve bos pointed to by the list entries for validation.
* If the function returns 0, all buffers are marked as "unfenced",
@@ -84,9 +85,9 @@ extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
* CPU write reservations to be cleared, and for other threads to
* unreserve their buffers.
*
- * This function may return -ERESTART or -EAGAIN if the calling process
- * receives a signal while waiting. In that case, no buffers on the list
- * will be reserved upon return.
+ * If intr is set to true, this function may return -ERESTARTSYS if the
+ * calling process receives a signal while waiting. In that case, no
+ * buffers on the list will be reserved upon return.
*
* Buffers reserved by this function should be unreserved by
* a call to either ttm_eu_backoff_reservation() or
@@ -95,7 +96,7 @@ extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
*/
extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
- struct list_head *list);
+ struct list_head *list, bool intr);
/**
* function ttm_eu_fence_buffer_objects.
--
cgit v1.2.1
From 1f0dc9a59afeccb96a35ebec36661266260f5eee Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Thu, 9 Jan 2014 11:03:08 +0100
Subject: drm/ttm: kill off some members to ttm_validate_buffer
This reorders the list to keep track of what buffers are reserved,
so previous members are always unreserved.
This gets rid of some bookkeeping that's no longer needed,
while simplifying the code some.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
---
include/drm/ttm/ttm_execbuf_util.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
index fd95fd569ca3..8490cb8ee0d8 100644
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -48,9 +48,6 @@
struct ttm_validate_buffer {
struct list_head head;
struct ttm_buffer_object *bo;
- bool reserved;
- bool removed;
- int put_count;
void *old_sync_obj;
};
--
cgit v1.2.1
From 4e00517945bed110f1b8de580cce97626e9ef0b5 Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Sun, 31 Aug 2014 21:10:51 +0200
Subject: regulator: max1586: add device-tree support
Add device-tree support to max1586.
The driver can still be used with the legacy platform data, or the new
device-tree way.
This work is heavily inspired by the device-tree support of its cousin
max8660 driver.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/regulator/max1586.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/regulator/max1586.h b/include/linux/regulator/max1586.h
index de9a7fae20be..cedd0febe882 100644
--- a/include/linux/regulator/max1586.h
+++ b/include/linux/regulator/max1586.h
@@ -40,7 +40,7 @@
*/
struct max1586_subdev_data {
int id;
- char *name;
+ const char *name;
struct regulator_init_data *platform_data;
};
--
cgit v1.2.1
From 068765ba7987e73d4381edfe47b70aa121c7155c Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 1 Sep 2014 13:47:49 +0200
Subject: PM / sleep: Mechanism for aborting system suspends unconditionally
It sometimes may be necessary to abort a system suspend in
progress or wake up the system from suspend-to-idle even if the
pm_wakeup_event()/pm_stay_awake() mechanism is not enabled.
For this purpose, introduce a new global variable pm_abort_suspend
and make pm_wakeup_pending() check its value. Also add routines
for manipulating that variable.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/suspend.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 519064e0c943..06a9910827c2 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -371,6 +371,8 @@ extern int unregister_pm_notifier(struct notifier_block *nb);
extern bool events_check_enabled;
extern bool pm_wakeup_pending(void);
+extern void pm_system_wakeup(void);
+extern void pm_wakeup_clear(void);
extern bool pm_get_wakeup_count(unsigned int *count, bool block);
extern bool pm_save_wakeup_count(unsigned int count);
extern void pm_wakep_autosleep_enabled(bool set);
@@ -418,6 +420,8 @@ static inline int unregister_pm_notifier(struct notifier_block *nb)
#define pm_notifier(fn, pri) do { (void)(fn); } while (0)
static inline bool pm_wakeup_pending(void) { return false; }
+static inline void pm_system_wakeup(void) {}
+static inline void pm_wakeup_clear(void) {}
static inline void lock_system_sleep(void) {}
static inline void unlock_system_sleep(void) {}
--
cgit v1.2.1
From cab303be91dc47942bc25de33dc1140123540800 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 28 Aug 2014 11:44:31 +0200
Subject: genirq: Add sanity checks for PM options on shared interrupt lines
Account the IRQF_NO_SUSPEND and IRQF_RESUME_EARLY actions on shared
interrupt lines and yell loudly if there is a mismatch.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/irqdesc.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 472c021a2d4f..cb1a31e448ae 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -36,6 +36,11 @@ struct irq_desc;
* @threads_oneshot: bitfield to handle shared oneshot threads
* @threads_active: number of irqaction threads currently running
* @wait_for_threads: wait queue for sync_irq to wait for threaded handlers
+ * @nr_actions: number of installed actions on this descriptor
+ * @no_suspend_depth: number of irqactions on a irq descriptor with
+ * IRQF_NO_SUSPEND set
+ * @force_resume_depth: number of irqactions on a irq descriptor with
+ * IRQF_FORCE_RESUME set
* @dir: /proc/irq/ procfs entry
* @name: flow handler name for /proc/interrupts output
*/
@@ -68,6 +73,11 @@ struct irq_desc {
unsigned long threads_oneshot;
atomic_t threads_active;
wait_queue_head_t wait_for_threads;
+#ifdef CONFIG_PM_SLEEP
+ unsigned int nr_actions;
+ unsigned int no_suspend_depth;
+ unsigned int force_resume_depth;
+#endif
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *dir;
#endif
--
cgit v1.2.1
From b76f16748fa61801b1a1fd3ffb6f25ee228a35e0 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 29 Aug 2014 13:54:09 +0200
Subject: genirq: Mark wakeup sources as armed on suspend
This allows us to utilize this information in the irq_may_run() check
without adding another conditional to the fast path.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/irq.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 62af59242ddc..03f48d936f66 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -173,6 +173,7 @@ struct irq_data {
* IRQD_IRQ_DISABLED - Disabled state of the interrupt
* IRQD_IRQ_MASKED - Masked state of the interrupt
* IRQD_IRQ_INPROGRESS - In progress state of the interrupt
+ * IRQD_WAKEUP_ARMED - Wakeup mode armed
*/
enum {
IRQD_TRIGGER_MASK = 0xf,
@@ -186,6 +187,7 @@ enum {
IRQD_IRQ_DISABLED = (1 << 16),
IRQD_IRQ_MASKED = (1 << 17),
IRQD_IRQ_INPROGRESS = (1 << 18),
+ IRQD_WAKEUP_ARMED = (1 << 19),
};
static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@@ -257,6 +259,12 @@ static inline bool irqd_irq_inprogress(struct irq_data *d)
return d->state_use_accessors & IRQD_IRQ_INPROGRESS;
}
+static inline bool irqd_is_wakeup_armed(struct irq_data *d)
+{
+ return d->state_use_accessors & IRQD_WAKEUP_ARMED;
+}
+
+
/*
* Functions for chained handlers which can be enabled/disabled by the
* standard disable_irq/enable_irq calls. Must be called with
--
cgit v1.2.1
From 9ce7a25849e80cfb264f4995f832b932c1987e1a Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 29 Aug 2014 14:00:16 +0200
Subject: genirq: Simplify wakeup mechanism
Currently we suspend wakeup interrupts by lazy disabling them and
check later whether the interrupt has fired, but that's not sufficient
for suspend to idle as there is no way to check that once we
transitioned into the CPU idle state.
So we change the mechanism in the following way:
1) Leave the wakeup interrupts enabled across suspend
2) Add a check to irq_may_run() which is called at the beginning of
each flow handler whether the interrupt is an armed wakeup source.
This check is basically free as it just extends the existing check
for IRQD_IRQ_INPROGRESS. So no new conditional in the hot path.
If the IRQD_WAKEUP_ARMED flag is set, then the interrupt is
disabled, marked as pending/suspended and the pm core is notified
about the wakeup event.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[ rjw: syscore.c and put irq_pm_check_wakeup() into pm.c ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/interrupt.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 698ad053d064..69517a24bc50 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -193,11 +193,6 @@ extern void irq_wake_thread(unsigned int irq, void *dev_id);
/* The following three functions are for the core kernel use only. */
extern void suspend_device_irqs(void);
extern void resume_device_irqs(void);
-#ifdef CONFIG_PM_SLEEP
-extern int check_wakeup_irqs(void);
-#else
-static inline int check_wakeup_irqs(void) { return 0; }
-#endif
/**
* struct irq_affinity_notify - context for notification of IRQ affinity changes
--
cgit v1.2.1
From cfdbeeafdbbdbc006f700e92cbad2cb5d4529f3d Mon Sep 17 00:00:00 2001
From: Vincent Cuissard <cuissard@marvell.com>
Date: Tue, 22 Jul 2014 19:48:38 +0200
Subject: NFC: NCI: Add support of ISO15693
Update nci.h to respect latest NCI specification proposal
(stop using proprietary opcodes). Handle ISO15693 parameters
in NCI_RF_ACTIVATED_NTF handler.
Signed-off-by: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci.h | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
index fbfa4e471abb..9eca9ae2280c 100644
--- a/include/net/nfc/nci.h
+++ b/include/net/nfc/nci.h
@@ -2,6 +2,7 @@
* The NFC Controller Interface is the communication protocol between an
* NFC Controller (NFCC) and a Device Host (DH).
*
+ * Copyright (C) 2014 Marvell International Ltd.
* Copyright (C) 2011 Texas Instruments, Inc.
*
* Written by Ilan Elias <ilane@ti.com>
@@ -65,19 +66,18 @@
#define NCI_NFC_F_PASSIVE_POLL_MODE 0x02
#define NCI_NFC_A_ACTIVE_POLL_MODE 0x03
#define NCI_NFC_F_ACTIVE_POLL_MODE 0x05
-#define NCI_NFC_15693_PASSIVE_POLL_MODE 0x06
+#define NCI_NFC_V_PASSIVE_POLL_MODE 0x06
#define NCI_NFC_A_PASSIVE_LISTEN_MODE 0x80
#define NCI_NFC_B_PASSIVE_LISTEN_MODE 0x81
#define NCI_NFC_F_PASSIVE_LISTEN_MODE 0x82
#define NCI_NFC_A_ACTIVE_LISTEN_MODE 0x83
#define NCI_NFC_F_ACTIVE_LISTEN_MODE 0x85
-#define NCI_NFC_15693_PASSIVE_LISTEN_MODE 0x86
/* NCI RF Technologies */
#define NCI_NFC_RF_TECHNOLOGY_A 0x00
#define NCI_NFC_RF_TECHNOLOGY_B 0x01
#define NCI_NFC_RF_TECHNOLOGY_F 0x02
-#define NCI_NFC_RF_TECHNOLOGY_15693 0x03
+#define NCI_NFC_RF_TECHNOLOGY_V 0x03
/* NCI Bit Rates */
#define NCI_NFC_BIT_RATE_106 0x00
@@ -87,6 +87,7 @@
#define NCI_NFC_BIT_RATE_1695 0x04
#define NCI_NFC_BIT_RATE_3390 0x05
#define NCI_NFC_BIT_RATE_6780 0x06
+#define NCI_NFC_BIT_RATE_26 0x20
/* NCI RF Protocols */
#define NCI_RF_PROTOCOL_UNKNOWN 0x00
@@ -95,6 +96,7 @@
#define NCI_RF_PROTOCOL_T3T 0x03
#define NCI_RF_PROTOCOL_ISO_DEP 0x04
#define NCI_RF_PROTOCOL_NFC_DEP 0x05
+#define NCI_RF_PROTOCOL_T5T 0x06
/* NCI RF Interfaces */
#define NCI_RF_INTERFACE_NFCEE_DIRECT 0x00
@@ -328,6 +330,12 @@ struct rf_tech_specific_params_nfcf_poll {
__u8 sensf_res[18]; /* 16 or 18 Bytes */
} __packed;
+struct rf_tech_specific_params_nfcv_poll {
+ __u8 res_flags;
+ __u8 dsfid;
+ __u8 uid[8]; /* 8 Bytes */
+} __packed;
+
struct nci_rf_discover_ntf {
__u8 rf_discovery_id;
__u8 rf_protocol;
@@ -338,6 +346,7 @@ struct nci_rf_discover_ntf {
struct rf_tech_specific_params_nfca_poll nfca_poll;
struct rf_tech_specific_params_nfcb_poll nfcb_poll;
struct rf_tech_specific_params_nfcf_poll nfcf_poll;
+ struct rf_tech_specific_params_nfcv_poll nfcv_poll;
} rf_tech_specific_params;
__u8 ntf_type;
@@ -372,6 +381,7 @@ struct nci_rf_intf_activated_ntf {
struct rf_tech_specific_params_nfca_poll nfca_poll;
struct rf_tech_specific_params_nfcb_poll nfcb_poll;
struct rf_tech_specific_params_nfcf_poll nfcf_poll;
+ struct rf_tech_specific_params_nfcv_poll nfcv_poll;
} rf_tech_specific_params;
__u8 data_exch_rf_tech_and_mode;
--
cgit v1.2.1
From 10b3ad8c21bb4b135768c30dd4c51a1c744da699 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 29 Aug 2014 21:07:24 -0700
Subject: net: Do txq_trans_update() in netdev_start_xmit()
That way we don't have to audit every call site to make sure it is
doing this properly.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 456eb1fe51e8..16171802ea7d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3437,11 +3437,17 @@ static inline netdev_tx_t __netdev_start_xmit(const struct net_device_ops *ops,
return ops->ndo_start_xmit(skb, dev);
}
-static inline netdev_tx_t netdev_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static inline netdev_tx_t netdev_start_xmit(struct sk_buff *skb, struct net_device *dev,
+ struct netdev_queue *txq)
{
const struct net_device_ops *ops = dev->netdev_ops;
+ int rc;
- return __netdev_start_xmit(ops, skb, dev);
+ rc = __netdev_start_xmit(ops, skb, dev);
+ if (rc == NETDEV_TX_OK)
+ txq_trans_update(txq);
+
+ return rc;
}
int netdev_class_create_file_ns(struct class_attribute *class_attr,
--
cgit v1.2.1
From fa2dbdc253c2aee2a760c64de454cb62469ec11d Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 29 Aug 2014 21:55:22 -0700
Subject: net: Pass a "more" indication down into netdev_start_xmit() code
paths.
For now it will always be false.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 16171802ea7d..5050218c5b7f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3431,19 +3431,20 @@ int __init dev_proc_init(void);
#endif
static inline netdev_tx_t __netdev_start_xmit(const struct net_device_ops *ops,
- struct sk_buff *skb, struct net_device *dev)
+ struct sk_buff *skb, struct net_device *dev,
+ bool more)
{
- skb->xmit_more = 0;
+ skb->xmit_more = more ? 1 : 0;
return ops->ndo_start_xmit(skb, dev);
}
static inline netdev_tx_t netdev_start_xmit(struct sk_buff *skb, struct net_device *dev,
- struct netdev_queue *txq)
+ struct netdev_queue *txq, bool more)
{
const struct net_device_ops *ops = dev->netdev_ops;
int rc;
- rc = __netdev_start_xmit(ops, skb, dev);
+ rc = __netdev_start_xmit(ops, skb, dev, more);
if (rc == NETDEV_TX_OK)
txq_trans_update(txq);
--
cgit v1.2.1
From 50cbe9ab5f8d92d2d4a327b56e96559d8f63a1fa Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 30 Aug 2014 19:13:51 -0700
Subject: net: Validate xmit SKBs right when we pull them out of the qdisc.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5050218c5b7f..47c49ba2dcf4 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2827,6 +2827,7 @@ int dev_set_mac_address(struct net_device *, struct sockaddr *);
int dev_change_carrier(struct net_device *, bool new_carrier);
int dev_get_phys_port_id(struct net_device *dev,
struct netdev_phys_port_id *ppid);
+struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev);
int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
struct netdev_queue *txq);
int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
--
cgit v1.2.1
From ce93718fb7cdbc064c3000ff59e4d3200bdfa744 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 30 Aug 2014 19:22:20 -0700
Subject: net: Don't keep around original SKB when we software segment GSO
frames.
Just maintain the list properly by returning the head of the remaining
SKB list from dev_hard_start_xmit().
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 47c49ba2dcf4..202c25a9aadf 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2828,8 +2828,8 @@ int dev_change_carrier(struct net_device *, bool new_carrier);
int dev_get_phys_port_id(struct net_device *dev,
struct netdev_phys_port_id *ppid);
struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev);
-int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
- struct netdev_queue *txq);
+struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
+ struct netdev_queue *txq, int *ret);
int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
int dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
bool is_skb_forwardable(struct net_device *dev, struct sk_buff *skb);
--
cgit v1.2.1
From e963bb1de415ab06693357336c1bec664753e1e2 Mon Sep 17 00:00:00 2001
From: Zheng Liu <wenqing.lz@taobao.com>
Date: Mon, 1 Sep 2014 22:22:13 -0400
Subject: ext4: improve extents status tree trace point
This commit improves the trace point of extents status tree. We rename
trace_ext4_es_shrink_enter in ext4_es_count() because it is also used
in ext4_es_scan() and we can not identify them from the result.
Further this commit fixes a variable name in trace point in order to
keep consistency with others.
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
include/trace/events/ext4.h | 28 ++++++++++++++++++++--------
1 file changed, 20 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index d4f70a7fe876..849aaba75dc8 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -2369,7 +2369,7 @@ TRACE_EVENT(ext4_es_lookup_extent_exit,
show_extent_status(__entry->found ? __entry->status : 0))
);
-TRACE_EVENT(ext4_es_shrink_enter,
+DECLARE_EVENT_CLASS(ext4__es_shrink_enter,
TP_PROTO(struct super_block *sb, int nr_to_scan, int cache_cnt),
TP_ARGS(sb, nr_to_scan, cache_cnt),
@@ -2391,26 +2391,38 @@ TRACE_EVENT(ext4_es_shrink_enter,
__entry->nr_to_scan, __entry->cache_cnt)
);
-TRACE_EVENT(ext4_es_shrink_exit,
- TP_PROTO(struct super_block *sb, int shrunk_nr, int cache_cnt),
+DEFINE_EVENT(ext4__es_shrink_enter, ext4_es_shrink_count,
+ TP_PROTO(struct super_block *sb, int nr_to_scan, int cache_cnt),
+
+ TP_ARGS(sb, nr_to_scan, cache_cnt)
+);
+
+DEFINE_EVENT(ext4__es_shrink_enter, ext4_es_shrink_scan_enter,
+ TP_PROTO(struct super_block *sb, int nr_to_scan, int cache_cnt),
+
+ TP_ARGS(sb, nr_to_scan, cache_cnt)
+);
+
+TRACE_EVENT(ext4_es_shrink_scan_exit,
+ TP_PROTO(struct super_block *sb, int nr_shrunk, int cache_cnt),
- TP_ARGS(sb, shrunk_nr, cache_cnt),
+ TP_ARGS(sb, nr_shrunk, cache_cnt),
TP_STRUCT__entry(
__field( dev_t, dev )
- __field( int, shrunk_nr )
+ __field( int, nr_shrunk )
__field( int, cache_cnt )
),
TP_fast_assign(
__entry->dev = sb->s_dev;
- __entry->shrunk_nr = shrunk_nr;
+ __entry->nr_shrunk = nr_shrunk;
__entry->cache_cnt = cache_cnt;
),
- TP_printk("dev %d,%d shrunk_nr %d cache_cnt %d",
+ TP_printk("dev %d,%d nr_shrunk %d cache_cnt %d",
MAJOR(__entry->dev), MINOR(__entry->dev),
- __entry->shrunk_nr, __entry->cache_cnt)
+ __entry->nr_shrunk, __entry->cache_cnt)
);
TRACE_EVENT(ext4_collapse_range,
--
cgit v1.2.1
From eb68d0e2fc5a4e5c06324ea5f485fccbae626d05 Mon Sep 17 00:00:00 2001
From: Zheng Liu <wenqing.lz@taobao.com>
Date: Mon, 1 Sep 2014 22:26:49 -0400
Subject: ext4: track extent status tree shrinker delay statictics
This commit adds some statictics in extent status tree shrinker. The
purpose to add these is that we want to collect more details when we
encounter a stall caused by extent status tree shrinker. Here we count
the following statictics:
stats:
the number of all objects on all extent status trees
the number of reclaimable objects on lru list
cache hits/misses
the last sorted interval
the number of inodes on lru list
average:
scan time for shrinking some objects
the number of shrunk objects
maximum:
the inode that has max nr. of objects on lru list
the maximum scan time for shrinking some objects
The output looks like below:
$ cat /proc/fs/ext4/sda1/es_shrinker_info
stats:
28228 objects
6341 reclaimable objects
5281/631 cache hits/misses
586 ms last sorted interval
250 inodes on lru list
average:
153 us scan time
128 shrunk objects
maximum:
255 inode (255 objects, 198 reclaimable)
125723 us max scan time
If the lru list has never been sorted, the following line will not be
printed:
586ms last sorted interval
If there is an empty lru list, the following lines also will not be
printed:
250 inodes on lru list
...
maximum:
255 inode (255 objects, 198 reclaimable)
0 us max scan time
Meanwhile in this commit a new trace point is defined to print some
details in __ext4_es_shrink().
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
include/trace/events/ext4.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 849aaba75dc8..ff4bd1b35246 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -2450,6 +2450,37 @@ TRACE_EVENT(ext4_collapse_range,
__entry->offset, __entry->len)
);
+TRACE_EVENT(ext4_es_shrink,
+ TP_PROTO(struct super_block *sb, int nr_shrunk, u64 scan_time,
+ int skip_precached, int nr_skipped, int retried),
+
+ TP_ARGS(sb, nr_shrunk, scan_time, skip_precached, nr_skipped, retried),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( int, nr_shrunk )
+ __field( unsigned long long, scan_time )
+ __field( int, skip_precached )
+ __field( int, nr_skipped )
+ __field( int, retried )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->nr_shrunk = nr_shrunk;
+ __entry->scan_time = div_u64(scan_time, 1000);
+ __entry->skip_precached = skip_precached;
+ __entry->nr_skipped = nr_skipped;
+ __entry->retried = retried;
+ ),
+
+ TP_printk("dev %d,%d nr_shrunk %d, scan_time %llu skip_precached %d "
+ "nr_skipped %d retried %d",
+ MAJOR(__entry->dev), MINOR(__entry->dev), __entry->nr_shrunk,
+ __entry->scan_time, __entry->skip_precached,
+ __entry->nr_skipped, __entry->retried)
+);
+
#endif /* _TRACE_EXT4_H */
/* This part must be outside protection */
--
cgit v1.2.1
From 5a21232983aa7acfe7fd26170832a9e0a4a7b4ae Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Sun, 31 Aug 2014 15:12:41 -0700
Subject: net: Support for csum_bad in skbuff
This flag indicates that an invalid checksum was detected in the
packet. __skb_mark_checksum_bad helper function was added to set this.
Checksums can be marked bad from a driver or the GRO path (the latter
is implemented in this patch). csum_bad is checked in
__skb_checksum_validate_complete (i.e. calling that when ip_summed ==
CHECKSUM_NONE).
csum_bad works in conjunction with ip_summed value. In the case that
ip_summed is CHECKSUM_NONE and csum_bad is set, this implies that the
first (or next) checksum encountered in the packet is bad. When
ip_summed is CHECKSUM_UNNECESSARY, the first checksum after the last
one validated is bad. For example, if ip_summed == CHECKSUM_UNNECESSARY,
csum_level == 1, and csum_bad is set-- then the third checksum in the
packet is bad. In the normal path, the packet will be dropped when
processing the protocol layer of the bad checksum:
__skb_decr_checksum_unnecessary called twice for the good checksums
changing ip_summed to CHECKSUM_NONE so that
__skb_checksum_validate_complete is called to validate the third
checksum and that will fail since csum_bad is set.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 4 +++-
include/linux/skbuff.h | 21 ++++++++++++++++++++-
2 files changed, 23 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 202c25a9aadf..a0ab6d9d400a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2216,7 +2216,9 @@ static inline void skb_gro_incr_csum_unnecessary(struct sk_buff *skb)
if (__skb_gro_checksum_validate_needed(skb, zero_okay, check)) \
__ret = __skb_gro_checksum_validate_complete(skb, \
compute_pseudo(skb, proto)); \
- if (!__ret) \
+ if (__ret) \
+ __skb_mark_checksum_bad(skb); \
+ else \
skb_gro_incr_csum_unnecessary(skb); \
__ret; \
})
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index c93b5859a772..23710a243439 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -617,7 +617,8 @@ struct sk_buff {
kmemcheck_bitfield_begin(flags3);
__u8 csum_level:2;
- /* 14 bit hole */
+ __u8 csum_bad:1;
+ /* 13 bit hole */
kmemcheck_bitfield_end(flags3);
__be16 inner_protocol;
@@ -2825,6 +2826,21 @@ static inline void __skb_incr_checksum_unnecessary(struct sk_buff *skb)
}
}
+static inline void __skb_mark_checksum_bad(struct sk_buff *skb)
+{
+ /* Mark current checksum as bad (typically called from GRO
+ * path). In the case that ip_summed is CHECKSUM_NONE
+ * this must be the first checksum encountered in the packet.
+ * When ip_summed is CHECKSUM_UNNECESSARY, this is the first
+ * checksum after the last one validated. For UDP, a zero
+ * checksum can not be marked as bad.
+ */
+
+ if (skb->ip_summed == CHECKSUM_NONE ||
+ skb->ip_summed == CHECKSUM_UNNECESSARY)
+ skb->csum_bad = 1;
+}
+
/* Check if we need to perform checksum complete validation.
*
* Returns true if checksum complete is needed, false otherwise
@@ -2866,6 +2882,9 @@ static inline __sum16 __skb_checksum_validate_complete(struct sk_buff *skb,
skb->csum_valid = 1;
return 0;
}
+ } else if (skb->csum_bad) {
+ /* ip_summed == CHECKSUM_NONE in this case */
+ return 1;
}
skb->csum = psum;
--
cgit v1.2.1
From d96535a17dbbafd567961d14c08c0984ddda9c3c Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Sun, 31 Aug 2014 15:12:42 -0700
Subject: net: Infrastructure for checksum unnecessary conversions
For normal path, added skb_checksum_try_convert which is called
to attempt to convert CHECKSUM_UNNECESSARY to CHECKSUM_COMPLETE. The
primary condition to allow this is that ip_summed is CHECKSUM_NONE
and csum_valid is true, which will be the state after consuming
a CHECKSUM_UNNECESSARY.
For GRO path, added skb_gro_checksum_try_convert which is the GRO
analogue of skb_checksum_try_convert. The primary condition to allow
this is that NAPI_GRO_CB(skb)->csum_cnt == 0 and
NAPI_GRO_CB(skb)->csum_valid is set. This implies that we have consumed
all available CHECKSUM_UNNECESSARY checksums in the GRO path.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 20 ++++++++++++++++++++
include/linux/skbuff.h | 20 ++++++++++++++++++++
2 files changed, 40 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a0ab6d9d400a..5be20a7bbb0d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2233,6 +2233,26 @@ static inline void skb_gro_incr_csum_unnecessary(struct sk_buff *skb)
#define skb_gro_checksum_simple_validate(skb) \
__skb_gro_checksum_validate(skb, 0, false, 0, null_compute_pseudo)
+static inline bool __skb_gro_checksum_convert_check(struct sk_buff *skb)
+{
+ return (NAPI_GRO_CB(skb)->csum_cnt == 0 &&
+ !NAPI_GRO_CB(skb)->csum_valid);
+}
+
+static inline void __skb_gro_checksum_convert(struct sk_buff *skb,
+ __sum16 check, __wsum pseudo)
+{
+ NAPI_GRO_CB(skb)->csum = ~pseudo;
+ NAPI_GRO_CB(skb)->csum_valid = 1;
+}
+
+#define skb_gro_checksum_try_convert(skb, proto, check, compute_pseudo) \
+do { \
+ if (__skb_gro_checksum_convert_check(skb)) \
+ __skb_gro_checksum_convert(skb, check, \
+ compute_pseudo(skb, proto)); \
+} while (0)
+
static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type,
const void *daddr, const void *saddr,
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 23710a243439..02529fcad1ac 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2942,6 +2942,26 @@ static inline __wsum null_compute_pseudo(struct sk_buff *skb, int proto)
#define skb_checksum_simple_validate(skb) \
__skb_checksum_validate(skb, 0, true, false, 0, null_compute_pseudo)
+static inline bool __skb_checksum_convert_check(struct sk_buff *skb)
+{
+ return (skb->ip_summed == CHECKSUM_NONE &&
+ skb->csum_valid && !skb->csum_bad);
+}
+
+static inline void __skb_checksum_convert(struct sk_buff *skb,
+ __sum16 check, __wsum pseudo)
+{
+ skb->csum = ~pseudo;
+ skb->ip_summed = CHECKSUM_COMPLETE;
+}
+
+#define skb_checksum_try_convert(skb, proto, check, compute_pseudo) \
+do { \
+ if (__skb_checksum_convert_check(skb)) \
+ __skb_checksum_convert(skb, check, \
+ compute_pseudo(skb, proto)); \
+} while (0)
+
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
void nf_conntrack_destroy(struct nf_conntrack *nfct);
static inline void nf_conntrack_put(struct nf_conntrack *nfct)
--
cgit v1.2.1
From 2abb7cdc0dc84e99b76ef983a1ae1978922aa9b3 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Sun, 31 Aug 2014 15:12:43 -0700
Subject: udp: Add support for doing checksum unnecessary conversion
Add support for doing CHECKSUM_UNNECESSARY to CHECKSUM_COMPLETE
conversion in UDP tunneling path.
In the normal UDP path, we call skb_checksum_try_convert after locating
the UDP socket. The check is that checksum conversion is enabled for
the socket (new flag in UDP socket) and that checksum field is
non-zero.
In the UDP GRO path, we call skb_gro_checksum_try_convert after
checksum is validated and checksum field is non-zero. Since this is
already in GRO we assume that checksum conversion is always wanted.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/udp.h | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/udp.h b/include/linux/udp.h
index 247cfdcc4b08..ee3277593222 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -49,7 +49,11 @@ struct udp_sock {
unsigned int corkflag; /* Cork is required */
__u8 encap_type; /* Is this an Encapsulation socket? */
unsigned char no_check6_tx:1,/* Send zero UDP6 checksums on TX? */
- no_check6_rx:1;/* Allow zero UDP6 checksums on RX? */
+ no_check6_rx:1,/* Allow zero UDP6 checksums on RX? */
+ convert_csum:1;/* On receive, convert checksum
+ * unnecessary to checksum complete
+ * if possible.
+ */
/*
* Following member retains the information to create a UDP header
* when the socket is uncorked.
@@ -98,6 +102,16 @@ static inline bool udp_get_no_check6_rx(struct sock *sk)
return udp_sk(sk)->no_check6_rx;
}
+static inline void udp_set_convert_csum(struct sock *sk, bool val)
+{
+ udp_sk(sk)->convert_csum = val;
+}
+
+static inline bool udp_get_convert_csum(struct sock *sk)
+{
+ return udp_sk(sk)->convert_csum;
+}
+
#define udp_portaddr_for_each_entry(__sk, node, list) \
hlist_nulls_for_each_entry(__sk, node, list, __sk_common.skc_portaddr_node)
--
cgit v1.2.1
From 364a9e93243d1785f310c0964af0e24bf1adac03 Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Sun, 31 Aug 2014 21:30:27 -0400
Subject: sock: deduplicate errqueue dequeue
sk->sk_error_queue is dequeued in four locations. All share the
exact same logic. Deduplicate.
Also collapse the two critical sections for dequeue (at the top of
the recv handler) and signal (at the bottom).
This moves signal generation for the next packet forward, which should
be harmless.
It also changes the behavior if the recv handler exits early with an
error. Previously, a signal for follow-up packets on the errqueue
would then not be scheduled. The new behavior, to always signal, is
arguably a bug fix.
For rxrpc, the change causes the same function to be called repeatedly
for each queued packet (because the recv handler == sk_error_report).
It is likely that all packets will fail for the same reason (e.g.,
memory exhaustion).
This code runs without sk_lock held, so it is not safe to trust that
sk->sk_err is immutable inbetween releasing q->lock and the subsequent
test. Introduce int err just to avoid this potential race.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index 7f2ab72f321a..3fde6130789d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2041,6 +2041,7 @@ void sk_stop_timer(struct sock *sk, struct timer_list *timer);
int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb);
+struct sk_buff *sock_dequeue_err_skb(struct sock *sk);
/*
* Recover an error report and clear atomically
--
cgit v1.2.1
From b58555f1767c9f4e330fcf168e4e753d2d9196e0 Mon Sep 17 00:00:00 2001
From: Christophe Gouault <christophe.gouault@6wind.com>
Date: Fri, 29 Aug 2014 16:16:04 +0200
Subject: xfrm: hash prefixed policies based on preflen thresholds
The idea is an extension of the current policy hashing.
Today only non-prefixed policies are stored in a hash table. This
patch relaxes the constraints, and hashes policies whose prefix
lengths are greater or equal to a configurable threshold.
Each hash table (one per direction) maintains its own set of IPv4 and
IPv6 thresholds (dbits4, sbits4, dbits6, sbits6), by default (32, 32,
128, 128).
Example, if the output hash table is configured with values (16, 24,
56, 64):
ip xfrm policy add dir out src 10.22.0.0/20 dst 10.24.1.0/24 ... => hashed
ip xfrm policy add dir out src 10.22.0.0/16 dst 10.24.1.1/32 ... => hashed
ip xfrm policy add dir out src 10.22.0.0/16 dst 10.24.0.0/16 ... => unhashed
ip xfrm policy add dir out \
src 3ffe:304:124:2200::/60 dst 3ffe:304:124:2401::/64 ... => hashed
ip xfrm policy add dir out \
src 3ffe:304:124:2200::/56 dst 3ffe:304:124:2401::2/128 ... => hashed
ip xfrm policy add dir out \
src 3ffe:304:124:2200::/56 dst 3ffe:304:124:2400::/56 ... => unhashed
The high order bits of the addresses (up to the threshold) are used to
compute the hash key.
Signed-off-by: Christophe Gouault <christophe.gouault@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
include/net/netns/xfrm.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 3492434baf88..41902a8103bd 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -13,6 +13,10 @@ struct ctl_table_header;
struct xfrm_policy_hash {
struct hlist_head *table;
unsigned int hmask;
+ u8 dbits4;
+ u8 sbits4;
+ u8 dbits6;
+ u8 sbits6;
};
struct netns_xfrm {
--
cgit v1.2.1
From 880a6fab8f6ba5b5abe59ea68533202ddea1012c Mon Sep 17 00:00:00 2001
From: Christophe Gouault <christophe.gouault@6wind.com>
Date: Fri, 29 Aug 2014 16:16:05 +0200
Subject: xfrm: configure policy hash table thresholds by netlink
Enable to specify local and remote prefix length thresholds for the
policy hash table via a netlink XFRM_MSG_NEWSPDINFO message.
prefix length thresholds are specified by XFRMA_SPD_IPV4_HTHRESH and
XFRMA_SPD_IPV6_HTHRESH optional attributes (struct xfrmu_spdhthresh).
example:
struct xfrmu_spdhthresh thresh4 = {
.lbits = 0;
.rbits = 24;
};
struct xfrmu_spdhthresh thresh6 = {
.lbits = 0;
.rbits = 56;
};
struct nlmsghdr *hdr;
struct nl_msg *msg;
msg = nlmsg_alloc();
hdr = nlmsg_put(msg, NL_AUTO_PORT, NL_AUTO_SEQ, XFRMA_SPD_IPV4_HTHRESH, sizeof(__u32), NLM_F_REQUEST);
nla_put(msg, XFRMA_SPD_IPV4_HTHRESH, sizeof(thresh4), &thresh4);
nla_put(msg, XFRMA_SPD_IPV6_HTHRESH, sizeof(thresh6), &thresh6);
nla_send_auto(sk, msg);
The numbers are the policy selector minimum prefix lengths to put a
policy in the hash table.
- lbits is the local threshold (source address for out policies,
destination address for in and fwd policies).
- rbits is the remote threshold (destination address for out
policies, source address for in and fwd policies).
The default values are:
XFRMA_SPD_IPV4_HTHRESH: 32 32
XFRMA_SPD_IPV6_HTHRESH: 128 128
Dynamic re-building of the SPD is performed when the thresholds values
are changed.
The current thresholds can be read via a XFRM_MSG_GETSPDINFO request:
the kernel replies to XFRM_MSG_GETSPDINFO requests by an
XFRM_MSG_NEWSPDINFO message, with both attributes
XFRMA_SPD_IPV4_HTHRESH and XFRMA_SPD_IPV6_HTHRESH.
Signed-off-by: Christophe Gouault <christophe.gouault@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
include/net/netns/xfrm.h | 10 ++++++++++
include/net/xfrm.h | 1 +
include/uapi/linux/xfrm.h | 7 +++++++
3 files changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 41902a8103bd..9da798256f0e 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -19,6 +19,15 @@ struct xfrm_policy_hash {
u8 sbits6;
};
+struct xfrm_policy_hthresh {
+ struct work_struct work;
+ seqlock_t lock;
+ u8 lbits4;
+ u8 rbits4;
+ u8 lbits6;
+ u8 rbits6;
+};
+
struct netns_xfrm {
struct list_head state_all;
/*
@@ -45,6 +54,7 @@ struct netns_xfrm {
struct xfrm_policy_hash policy_bydst[XFRM_POLICY_MAX * 2];
unsigned int policy_count[XFRM_POLICY_MAX * 2];
struct work_struct policy_hash_work;
+ struct xfrm_policy_hthresh policy_hthresh;
struct sock *nlsk;
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 721e9c3b11bd..dc4865e90fe4 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1591,6 +1591,7 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark,
struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8, int dir,
u32 id, int delete, int *err);
int xfrm_policy_flush(struct net *net, u8 type, bool task_valid);
+void xfrm_policy_hash_rebuild(struct net *net);
u32 xfrm_get_acqseq(void);
int verify_spi_info(u8 proto, u32 min, u32 max);
int xfrm_alloc_spi(struct xfrm_state *x, u32 minspi, u32 maxspi);
diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h
index 25e5dd916ba4..02d5125a5ee8 100644
--- a/include/uapi/linux/xfrm.h
+++ b/include/uapi/linux/xfrm.h
@@ -328,6 +328,8 @@ enum xfrm_spdattr_type_t {
XFRMA_SPD_UNSPEC,
XFRMA_SPD_INFO,
XFRMA_SPD_HINFO,
+ XFRMA_SPD_IPV4_HTHRESH,
+ XFRMA_SPD_IPV6_HTHRESH,
__XFRMA_SPD_MAX
#define XFRMA_SPD_MAX (__XFRMA_SPD_MAX - 1)
@@ -347,6 +349,11 @@ struct xfrmu_spdhinfo {
__u32 spdhmcnt;
};
+struct xfrmu_spdhthresh {
+ __u8 lbits;
+ __u8 rbits;
+};
+
struct xfrm_usersa_info {
struct xfrm_selector sel;
struct xfrm_id id;
--
cgit v1.2.1
From 2ffd48f2e7ae06c3d7b2bcde9a0cb211d1a32468 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Tue, 19 Aug 2014 10:52:40 -0700
Subject: gpu: ipu-v3: Add Camera Sensor Interface unit
Adds the Camera Sensor Interface (CSI) unit required for video capture.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Removed the unused clk_get_rate in ipu_csi_init_interface and the
ipu_csi_ccir_err_detection_enable/disable functions.
Checkpatch cleanup.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 32 ++++++++++++++++++++++++++++++--
1 file changed, 30 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index f80fe13b0d4d..6d254275192b 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -16,6 +16,7 @@
#include <linux/videodev2.h>
#include <linux/bitmap.h>
#include <linux/fb.h>
+#include <media/v4l2-mediabus.h>
struct ipu_soc;
@@ -61,6 +62,15 @@ struct ipu_di_signal_cfg {
u8 vsync_pin;
};
+/*
+ * Enumeration of CSI destinations
+ */
+enum ipu_csi_dest {
+ IPU_CSI_DEST_IDMAC, /* to memory via SMFC */
+ IPU_CSI_DEST_IC, /* to Image Converter */
+ IPU_CSI_DEST_VDIC, /* to VDIC */
+};
+
enum ipu_color_space {
IPUV3_COLORSPACE_RGB,
IPUV3_COLORSPACE_YUV,
@@ -211,8 +221,26 @@ int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable, u8 alpha,
/*
* IPU CMOS Sensor Interface (csi) functions
*/
-int ipu_csi_enable(struct ipu_soc *ipu, int csi);
-int ipu_csi_disable(struct ipu_soc *ipu, int csi);
+struct ipu_csi;
+int ipu_csi_init_interface(struct ipu_csi *csi,
+ struct v4l2_mbus_config *mbus_cfg,
+ struct v4l2_mbus_framefmt *mbus_fmt);
+bool ipu_csi_is_interlaced(struct ipu_csi *csi);
+void ipu_csi_get_window(struct ipu_csi *csi, struct v4l2_rect *w);
+void ipu_csi_set_window(struct ipu_csi *csi, struct v4l2_rect *w);
+void ipu_csi_set_test_generator(struct ipu_csi *csi, bool active,
+ u32 r_value, u32 g_value, u32 b_value,
+ u32 pix_clk);
+int ipu_csi_set_mipi_datatype(struct ipu_csi *csi, u32 vc,
+ struct v4l2_mbus_framefmt *mbus_fmt);
+int ipu_csi_set_skip_smfc(struct ipu_csi *csi, u32 skip,
+ u32 max_ratio, u32 id);
+int ipu_csi_set_dest(struct ipu_csi *csi, enum ipu_csi_dest csi_dest);
+int ipu_csi_enable(struct ipu_csi *csi);
+int ipu_csi_disable(struct ipu_csi *csi);
+struct ipu_csi *ipu_csi_get(struct ipu_soc *ipu, int id);
+void ipu_csi_put(struct ipu_csi *csi);
+void ipu_csi_dump(struct ipu_csi *csi);
/*
* IPU Sensor Multiple FIFO Controller (SMFC) functions
--
cgit v1.2.1
From 1aa8ea0d2bd5d4ba7b5d2b132a02157bc1fb9793 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Mon, 11 Aug 2014 13:04:50 +0200
Subject: gpu: ipu-v3: Add Image Converter unit
Adds the Image Converter (IC) unit.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Condensed the three CSC setup functions into a single one that
uses static tables to set up the CSC task parameters.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 45 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 6d254275192b..a477814a03af 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -71,6 +71,20 @@ enum ipu_csi_dest {
IPU_CSI_DEST_VDIC, /* to VDIC */
};
+/*
+ * Enumeration of IPU rotation modes
+ */
+enum ipu_rotate_mode {
+ IPU_ROTATE_NONE = 0,
+ IPU_ROTATE_VERT_FLIP,
+ IPU_ROTATE_HORIZ_FLIP,
+ IPU_ROTATE_180,
+ IPU_ROTATE_90_RIGHT,
+ IPU_ROTATE_90_RIGHT_VFLIP,
+ IPU_ROTATE_90_RIGHT_HFLIP,
+ IPU_ROTATE_90_LEFT,
+};
+
enum ipu_color_space {
IPUV3_COLORSPACE_RGB,
IPUV3_COLORSPACE_YUV,
@@ -242,6 +256,37 @@ struct ipu_csi *ipu_csi_get(struct ipu_soc *ipu, int id);
void ipu_csi_put(struct ipu_csi *csi);
void ipu_csi_dump(struct ipu_csi *csi);
+/*
+ * IPU Image Converter (ic) functions
+ */
+enum ipu_ic_task {
+ IC_TASK_ENCODER,
+ IC_TASK_VIEWFINDER,
+ IC_TASK_POST_PROCESSOR,
+ IC_NUM_TASKS,
+};
+
+struct ipu_ic;
+int ipu_ic_task_init(struct ipu_ic *ic,
+ int in_width, int in_height,
+ int out_width, int out_height,
+ enum ipu_color_space in_cs,
+ enum ipu_color_space out_cs);
+int ipu_ic_task_graphics_init(struct ipu_ic *ic,
+ enum ipu_color_space in_g_cs,
+ bool galpha_en, u32 galpha,
+ bool colorkey_en, u32 colorkey);
+void ipu_ic_task_enable(struct ipu_ic *ic);
+void ipu_ic_task_disable(struct ipu_ic *ic);
+int ipu_ic_task_idma_init(struct ipu_ic *ic, struct ipuv3_channel *channel,
+ u32 width, u32 height, int burst_size,
+ enum ipu_rotate_mode rot);
+int ipu_ic_enable(struct ipu_ic *ic);
+int ipu_ic_disable(struct ipu_ic *ic);
+struct ipu_ic *ipu_ic_get(struct ipu_soc *ipu, enum ipu_ic_task task);
+void ipu_ic_put(struct ipu_ic *ic);
+void ipu_ic_dump(struct ipu_ic *ic);
+
/*
* IPU Sensor Multiple FIFO Controller (SMFC) functions
*/
--
cgit v1.2.1
From 7fafa8f06f9bdf32b806b4612bfe387de8e34125 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:34 -0700
Subject: gpu: ipu-v3: smfc: Convert to per-channel
Convert the smfc object to be specific to a single smfc channel.
Add ipu_smfc_{get|put} to retrieve and release a single smfc channel
for exclusive use, and add use counter to ipu_smfc_{enable|disable}.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index a477814a03af..a695ee83e4e1 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -290,10 +290,12 @@ void ipu_ic_dump(struct ipu_ic *ic);
/*
* IPU Sensor Multiple FIFO Controller (SMFC) functions
*/
-int ipu_smfc_enable(struct ipu_soc *ipu);
-int ipu_smfc_disable(struct ipu_soc *ipu);
-int ipu_smfc_map_channel(struct ipu_soc *ipu, int channel, int csi_id, int mipi_id);
-int ipu_smfc_set_burstsize(struct ipu_soc *ipu, int channel, int burstsize);
+struct ipu_smfc *ipu_smfc_get(struct ipu_soc *ipu, unsigned int chno);
+void ipu_smfc_put(struct ipu_smfc *smfc);
+int ipu_smfc_enable(struct ipu_smfc *smfc);
+int ipu_smfc_disable(struct ipu_smfc *smfc);
+int ipu_smfc_map_channel(struct ipu_smfc *smfc, int csi_id, int mipi_id);
+int ipu_smfc_set_burstsize(struct ipu_smfc *smfc, int burstsize);
enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
--
cgit v1.2.1
From a2be35e3320b27c84488729e9fb56a62e74d65fa Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:35 -0700
Subject: gpu: ipu-v3: smfc: Add ipu_smfc_set_watermark()
Adds ipu_smfc_set_watermark() which programs a channel's SMFC FIFO
levels at which the watermark signal is set and cleared.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index a695ee83e4e1..49e5954ac033 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -296,6 +296,7 @@ int ipu_smfc_enable(struct ipu_smfc *smfc);
int ipu_smfc_disable(struct ipu_smfc *smfc);
int ipu_smfc_map_channel(struct ipu_smfc *smfc, int csi_id, int mipi_id);
int ipu_smfc_set_burstsize(struct ipu_smfc *smfc, int burstsize);
+int ipu_smfc_set_watermark(struct ipu_smfc *smfc, u32 set_level, u32 clr_level);
enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
--
cgit v1.2.1
From ae0e9708b30b3eebe5a58e4d055eb49a73d641dd Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:36 -0700
Subject: gpu: ipu-v3: Add ipu_mbus_code_to_colorspace()
Add ipu_mbus_code_to_colorspace() to find ipu_color_space from a
media bus pixel format code.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 49e5954ac033..7c97ccaf39f6 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -300,6 +300,7 @@ int ipu_smfc_set_watermark(struct ipu_smfc *smfc, u32 set_level, u32 clr_level);
enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
+enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code);
struct ipu_client_platformdata {
int csi;
--
cgit v1.2.1
From f835f386a119c3f78f5acb93e86a4f025211739a Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:37 -0700
Subject: gpu: ipu-v3: Add rotation mode conversion utilities
Add two functions:
- ipu_degrees_to_rot_mode(): converts a degrees, hflip, and vflip setting
to an IPU rotation mode.
- ipu_rot_mode_to_degrees(): converts an IPU rotation mode with given hflip
and vflip settings to degrees.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 7c97ccaf39f6..3562698528bd 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -301,6 +301,10 @@ int ipu_smfc_set_watermark(struct ipu_smfc *smfc, u32 set_level, u32 clr_level);
enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code);
+int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
+ bool hflip, bool vflip);
+int ipu_rot_mode_to_degrees(int *degrees, enum ipu_rotate_mode mode,
+ bool hflip, bool vflip);
struct ipu_client_platformdata {
int csi;
--
cgit v1.2.1
From 4cea940d34319fb5d5e2f4d554e23f766c228e90 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:38 -0700
Subject: gpu: ipu-v3: Add helper function checking if pixfmt is planar
Add simple helper function returning true if passed pixel format is one
of supported planar ones.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 3562698528bd..ecb01f843aee 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -301,6 +301,7 @@ int ipu_smfc_set_watermark(struct ipu_smfc *smfc, u32 set_level, u32 clr_level);
enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code);
+bool ipu_pixelformat_is_planar(u32 pixelformat);
int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
bool hflip, bool vflip);
int ipu_rot_mode_to_degrees(int *degrees, enum ipu_rotate_mode mode,
--
cgit v1.2.1
From a4cd8f229ff71db0c95c0d96381d4fb9239fdb19 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:39 -0700
Subject: gpu: ipu-v3: Move IDMAC channel names to imx-ipu-v3.h
Move the IDMAC channel names to imx-ipu-v3.h, to make the names
available outside IPU. Add a couple new channels in the process
(async display BG/FG, channels 24 and 29).
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index ecb01f843aee..2e9bfe24fb67 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -100,6 +100,36 @@ enum ipu_channel_irq {
IPU_IRQ_EOS = 192,
};
+/*
+ * Enumeration of IDMAC channels
+ */
+#define IPUV3_CHANNEL_CSI0 0
+#define IPUV3_CHANNEL_CSI1 1
+#define IPUV3_CHANNEL_CSI2 2
+#define IPUV3_CHANNEL_CSI3 3
+#define IPUV3_CHANNEL_VDI_MEM_IC_VF 5
+#define IPUV3_CHANNEL_MEM_IC_PP 11
+#define IPUV3_CHANNEL_MEM_IC_PRP_VF 12
+#define IPUV3_CHANNEL_G_MEM_IC_PRP_VF 14
+#define IPUV3_CHANNEL_G_MEM_IC_PP 15
+#define IPUV3_CHANNEL_IC_PRP_ENC_MEM 20
+#define IPUV3_CHANNEL_IC_PRP_VF_MEM 21
+#define IPUV3_CHANNEL_IC_PP_MEM 22
+#define IPUV3_CHANNEL_MEM_BG_SYNC 23
+#define IPUV3_CHANNEL_MEM_BG_ASYNC 24
+#define IPUV3_CHANNEL_MEM_FG_SYNC 27
+#define IPUV3_CHANNEL_MEM_DC_SYNC 28
+#define IPUV3_CHANNEL_MEM_FG_ASYNC 29
+#define IPUV3_CHANNEL_MEM_FG_SYNC_ALPHA 31
+#define IPUV3_CHANNEL_MEM_DC_ASYNC 41
+#define IPUV3_CHANNEL_MEM_ROT_ENC 45
+#define IPUV3_CHANNEL_MEM_ROT_VF 46
+#define IPUV3_CHANNEL_MEM_ROT_PP 47
+#define IPUV3_CHANNEL_ROT_ENC_MEM 48
+#define IPUV3_CHANNEL_ROT_VF_MEM 49
+#define IPUV3_CHANNEL_ROT_PP_MEM 50
+#define IPUV3_CHANNEL_MEM_BG_SYNC_ALPHA 51
+
int ipu_map_irq(struct ipu_soc *ipu, int irq);
int ipu_idmac_channel_irq(struct ipu_soc *ipu, struct ipuv3_channel *channel,
enum ipu_channel_irq irq);
--
cgit v1.2.1
From aa52f57894b93dcfdd615b35a7579e161f1e7a38 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:40 -0700
Subject: gpu: ipu-v3: Add ipu_idmac_buffer_is_ready()
Add ipu_idmac_buffer_is_ready(), returns true if the given buffer in
the given channel is set ready (owned by IPU), or false if not ready
(owned by CPU core).
Support has been added for third buffer, there is no support yet for
triple-buffering in idmac channels, but this function checks
buffer-ready for third buffer in case this support is added later.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 2e9bfe24fb67..10013378394e 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -165,6 +165,7 @@ int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms);
void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
bool doublebuffer);
int ipu_idmac_get_current_buffer(struct ipuv3_channel *channel);
+bool ipu_idmac_buffer_is_ready(struct ipuv3_channel *channel, u32 buf_num);
void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num);
/*
--
cgit v1.2.1
From bce6f087a958a21500c51a9e63a5f578f5b0510c Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:41 -0700
Subject: gpu: ipu-v3: Add ipu_idmac_clear_buffer()
Add the reverse of ipu_idmac_select_buffer(), that is, clear a buffer
ready status in a channel.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 10013378394e..ae44eb067f5b 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -167,6 +167,7 @@ void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
int ipu_idmac_get_current_buffer(struct ipuv3_channel *channel);
bool ipu_idmac_buffer_is_ready(struct ipuv3_channel *channel, u32 buf_num);
void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num);
+void ipu_idmac_clear_buffer(struct ipuv3_channel *channel, u32 buf_num);
/*
* IPU Channel Parameter Memory (cpmem) functions
--
cgit v1.2.1
From 6930afdccfd2b3e6669c305d97958d81cf0d072e Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:43 -0700
Subject: gpu: ipu-v3: Add ipu_stride_to_bytes()
Adds ipu_stride_to_bytes(), which converts a pixel stride to bytes,
suitable for passing to cpmem.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index ae44eb067f5b..f24ef9a1dc48 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -333,6 +333,7 @@ int ipu_smfc_set_watermark(struct ipu_smfc *smfc, u32 set_level, u32 clr_level);
enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
enum ipu_color_space ipu_mbus_code_to_colorspace(u32 mbus_code);
+int ipu_stride_to_bytes(u32 pixel_stride, u32 pixelformat);
bool ipu_pixelformat_is_planar(u32 pixelformat);
int ipu_degrees_to_rot_mode(enum ipu_rotate_mode *mode, int degrees,
bool hflip, bool vflip);
--
cgit v1.2.1
From 2bcf577eb6361827f8347529803528031033cb83 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:44 -0700
Subject: gpu: ipu-v3: Add ipu_idmac_enable_watermark()
Adds the function ipu_idmac_enable_watermark(), which enables or disables
watermarking in the IDMAC channel. Enabling watermarking can increase a
channel's AXI bus arbitration priority.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index f24ef9a1dc48..d0cce6e4bcf5 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -160,6 +160,7 @@ void ipu_idmac_put(struct ipuv3_channel *);
int ipu_idmac_enable_channel(struct ipuv3_channel *channel);
int ipu_idmac_disable_channel(struct ipuv3_channel *channel);
+void ipu_idmac_enable_watermark(struct ipuv3_channel *channel, bool enable);
int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms);
void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
--
cgit v1.2.1
From 4fd1a07af59bf5e1cfb73f7035bf525522cebc76 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:45 -0700
Subject: gpu: ipu-v3: Add ipu_idmac_lock_enable()
Adds ipu_idmac_lock_enable(), which enables or disables channel
burst locking.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index d0cce6e4bcf5..b106c9b8b3e9 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -161,6 +161,7 @@ void ipu_idmac_put(struct ipuv3_channel *);
int ipu_idmac_enable_channel(struct ipuv3_channel *channel);
int ipu_idmac_disable_channel(struct ipuv3_channel *channel);
void ipu_idmac_enable_watermark(struct ipuv3_channel *channel, bool enable);
+int ipu_idmac_lock_enable(struct ipuv3_channel *channel, int num_bursts);
int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms);
void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
--
cgit v1.2.1
From 9b9da0be37490c77e92a2101a8c5d469ce1102f4 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:49 -0700
Subject: gpu: ipu-cpmem: Add ipu_cpmem_set_block_mode()
Adds ipu_cpmem_set_block_mode().
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index b106c9b8b3e9..d2cc207985d8 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -195,6 +195,7 @@ void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch);
void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf);
void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride);
void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize);
+void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch);
int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
const struct ipu_rgb *rgb);
int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width);
--
cgit v1.2.1
From 555f0e6690a41245518003c02a1ecb84e4a69281 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:50 -0700
Subject: gpu: ipu-cpmem: Add ipu_cpmem_set_axi_id()
Adds ipu_cpmem_set_axi_id() to set which AXI bus master the channel
will use to transfer data onto AXI bus.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index d2cc207985d8..f30c06871db7 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -194,6 +194,7 @@ void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride);
void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch);
void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf);
void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride);
+void ipu_cpmem_set_axi_id(struct ipuv3_channel *ch, u32 id);
void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize);
void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch);
int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
--
cgit v1.2.1
From c42d37ca421aa222e8f27744d4129bce726a3724 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:51 -0700
Subject: gpu: ipu-cpmem: Add ipu_cpmem_set_rotation()
Adds ipu_cpmem_set_rotation().
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index f30c06871db7..699e0d8d135b 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -197,6 +197,8 @@ void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride);
void ipu_cpmem_set_axi_id(struct ipuv3_channel *ch, u32 id);
void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize);
void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch);
+void ipu_cpmem_set_rotation(struct ipuv3_channel *ch,
+ enum ipu_rotate_mode rot);
int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
const struct ipu_rgb *rgb);
int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width);
--
cgit v1.2.1
From 2094b603ae59be6785e52a00d09b47b6ae910154 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:52 -0700
Subject: gpu: ipu-cpmem: Add second buffer support to ipu_cpmem_set_image()
Add a second buffer physaddr to struct ipu_image, for double-buffering
support.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index 699e0d8d135b..b519664c101e 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -185,7 +185,8 @@ struct ipu_rgb {
struct ipu_image {
struct v4l2_pix_format pix;
struct v4l2_rect rect;
- dma_addr_t phys;
+ dma_addr_t phys0;
+ dma_addr_t phys1;
};
void ipu_cpmem_zero(struct ipuv3_channel *ch);
--
cgit v1.2.1
From 60c04456f68f67f68180ebd84a47e4c58931f70f Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:54 -0700
Subject: gpu: ipu-cpmem: Add ipu_cpmem_dump()
Adds ipu_cpmem_dump() which dumps a channel's cpmem to debug.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index b519664c101e..b41c17d5afc3 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -211,6 +211,7 @@ void ipu_cpmem_set_yuv_planar(struct ipuv3_channel *ch,
u32 pixel_format, int stride, int height);
int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc);
int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image);
+void ipu_cpmem_dump(struct ipuv3_channel *ch);
/*
* IPU Display Controller (dc) functions
--
cgit v1.2.1
From 3feb049f378da6aa1209e05ef5c656a1f26a9183 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: Wed, 25 Jun 2014 18:05:55 -0700
Subject: gpu: ipu-v3: Add ipu_dump()
Adds ipu_dump() which dumps IPU register state to debug.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/video/imx-ipu-v3.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index b41c17d5afc3..c74bf4a0520e 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -151,6 +151,7 @@ int ipu_idmac_channel_irq(struct ipu_soc *ipu, struct ipuv3_channel *channel,
*/
void ipu_set_csi_src_mux(struct ipu_soc *ipu, int csi_id, bool mipi_csi2);
void ipu_set_ic_src_mux(struct ipu_soc *ipu, int csi_id, bool vdi);
+void ipu_dump(struct ipu_soc *ipu);
/*
* IPU Image DMA Controller (idmac) functions
--
cgit v1.2.1
From fbff66108352d19b5cffa7dce26d7638c9dd4d70 Mon Sep 17 00:00:00 2001
From: Mark Rustad <mark.d.rustad@intel.com>
Date: Thu, 28 Aug 2014 04:43:09 -0700
Subject: security: Silence shadow warning
Renaming an unused formal parameter in the static inline function
security_inode_init_security eliminates many W=2 warnings.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
---
include/linux/security.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/security.h b/include/linux/security.h
index 623f90e5f38d..3b3aeb1b74cb 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -2108,7 +2108,7 @@ static inline int security_dentry_init_security(struct dentry *dentry,
static inline int security_inode_init_security(struct inode *inode,
struct inode *dir,
const struct qstr *qstr,
- const initxattrs initxattrs,
+ const initxattrs xattrs,
void *fs_data)
{
return 0;
--
cgit v1.2.1
From ea2fdf842365066c82ab941086c6a1741ced4f2a Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Thu, 28 Aug 2014 13:58:53 +0200
Subject: usb: phy: samsung: remove old common USB PHY code
drivers/usb/phy/phy-samsung-usb[2,3] drivers got replaced by
drivers/phy/phy-samsung-usb[2,3] ones and the old common Samsung
USB PHY code is no longer used.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Vivek Gautam <gautam.vivek@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/platform_data/samsung-usbphy.h | 27 ---------------------------
1 file changed, 27 deletions(-)
delete mode 100644 include/linux/platform_data/samsung-usbphy.h
(limited to 'include')
diff --git a/include/linux/platform_data/samsung-usbphy.h b/include/linux/platform_data/samsung-usbphy.h
deleted file mode 100644
index 1bd24cba982b..000000000000
--- a/include/linux/platform_data/samsung-usbphy.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (C) 2012 Samsung Electronics Co.Ltd
- * http://www.samsung.com/
- * Author: Praveen Paneri <p.paneri@samsung.com>
- *
- * Defines platform data for samsung usb phy driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef __SAMSUNG_USBPHY_PLATFORM_H
-#define __SAMSUNG_USBPHY_PLATFORM_H
-
-/**
- * samsung_usbphy_data - Platform data for USB PHY driver.
- * @pmu_isolation: Function to control usb phy isolation in PMU.
- */
-struct samsung_usbphy_data {
- void (*pmu_isolation)(int on);
-};
-
-extern void samsung_usbphy_set_pdata(struct samsung_usbphy_data *pd);
-
-#endif /* __SAMSUNG_USBPHY_PLATFORM_H */
--
cgit v1.2.1
From 1df22b4ea9d91b01267fb61c155c31fb65d6b8a0 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Wed, 27 Aug 2014 22:58:45 +0200
Subject: usb: gadget: f_fs: add usb_functionfs_descs_head_v2 structure
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The structure can be used with user space tools that use the new
functionfs description format, for example as follows:
static const struct {
struct usb_functionfs_descs_head_v2 header;
__le32 fs_count;
__le32 hs_count;
struct {
…
} fs_desc;
struct {
…
} hs_desc;
} descriptors = {
.header = {
.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC_V2),
.length = cpu_to_le32(sizeof(descriptors)),
.flags = cpu_to_le32(FUNCTIONFS_HAS_FS_DESC |
FUNCTIONFS_HAS_HS_DESC)
},
.fs_count = cpu_to_le32(X),
.fs_desc = {
…
},
.hs_count = cpu_to_le32(Y),
.hs_desc = {
…
}
};
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/uapi/linux/usb/functionfs.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
index 0154b2859fd7..3ca03de7c2a8 100644
--- a/include/uapi/linux/usb/functionfs.h
+++ b/include/uapi/linux/usb/functionfs.h
@@ -32,6 +32,16 @@ struct usb_endpoint_descriptor_no_audio {
__u8 bInterval;
} __attribute__((packed));
+struct usb_functionfs_descs_head_v2 {
+ __le32 magic;
+ __le32 length;
+ __le32 flags;
+ /*
+ * __le32 fs_count, hs_count, fs_count; must be included manually in
+ * the structure taking flags into consideration.
+ */
+} __attribute__((packed));
+
/* Legacy format, deprecated as of 3.14. */
struct usb_functionfs_descs_head {
__le32 magic;
--
cgit v1.2.1
From 51c208c746e800dba37d1a54d3c5e601630266c4 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Wed, 27 Aug 2014 22:58:46 +0200
Subject: tools: ffs-test: convert to new descriptor format
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Since commit [ac8dde11: “Add flags to descriptors block”] functionfs
supports a new, more powerful and extensible, descriptor format.
Since ffs-test is probably the first thing users of the functionfs
interface see when they start writing functionfs user space daemons,
convert it to use the new format thus promoting it.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/uapi/linux/usb/functionfs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
index 3ca03de7c2a8..6d2a16b834bf 100644
--- a/include/uapi/linux/usb/functionfs.h
+++ b/include/uapi/linux/usb/functionfs.h
@@ -102,7 +102,7 @@ struct usb_ext_prop_desc {
* structure. Any flags that are not recognised cause the whole block to be
* rejected with -ENOSYS.
*
- * Legacy descriptors format:
+ * Legacy descriptors format (deprecated as of 3.14):
*
* | off | name | type | description |
* |-----+-----------+--------------+--------------------------------------|
--
cgit v1.2.1
From f2c24b83ae90292d315aa7ac029c6ce7929e01aa Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Wed, 2 Apr 2014 17:14:48 +0200
Subject: drm/ttm: flip the switch, and convert to dma_fence
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
---
include/drm/ttm/ttm_bo_api.h | 2 --
include/drm/ttm/ttm_bo_driver.h | 26 ++------------------------
include/drm/ttm/ttm_execbuf_util.h | 10 +++-------
3 files changed, 5 insertions(+), 33 deletions(-)
(limited to 'include')
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 5805f4a49478..70b44917c368 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -173,7 +173,6 @@ struct ttm_tt;
* @lru: List head for the lru list.
* @ddestroy: List head for the delayed destroy list.
* @swap: List head for swap LRU list.
- * @sync_obj: Pointer to a synchronization object.
* @priv_flags: Flags describing buffer object internal state.
* @vma_node: Address space manager node.
* @offset: The current GPU offset, which can have different meanings
@@ -240,7 +239,6 @@ struct ttm_buffer_object {
* Members protected by a bo reservation.
*/
- void *sync_obj;
unsigned long priv_flags;
struct drm_vma_offset_node vma_node;
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index e1ee141e26cc..142d752fc450 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -312,11 +312,6 @@ struct ttm_mem_type_manager {
* @move: Callback for a driver to hook in accelerated functions to
* move a buffer.
* If set to NULL, a potentially slow memcpy() move is used.
- * @sync_obj_signaled: See ttm_fence_api.h
- * @sync_obj_wait: See ttm_fence_api.h
- * @sync_obj_flush: See ttm_fence_api.h
- * @sync_obj_unref: See ttm_fence_api.h
- * @sync_obj_ref: See ttm_fence_api.h
*/
struct ttm_bo_driver {
@@ -418,23 +413,6 @@ struct ttm_bo_driver {
int (*verify_access) (struct ttm_buffer_object *bo,
struct file *filp);
- /**
- * In case a driver writer dislikes the TTM fence objects,
- * the driver writer can replace those with sync objects of
- * his / her own. If it turns out that no driver writer is
- * using these. I suggest we remove these hooks and plug in
- * fences directly. The bo driver needs the following functionality:
- * See the corresponding functions in the fence object API
- * documentation.
- */
-
- bool (*sync_obj_signaled) (void *sync_obj);
- int (*sync_obj_wait) (void *sync_obj,
- bool lazy, bool interruptible);
- int (*sync_obj_flush) (void *sync_obj);
- void (*sync_obj_unref) (void **sync_obj);
- void *(*sync_obj_ref) (void *sync_obj);
-
/* hook to notify driver about a driver move so it
* can do tiling things */
void (*move_notify)(struct ttm_buffer_object *bo,
@@ -1022,7 +1000,7 @@ extern void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
* ttm_bo_move_accel_cleanup.
*
* @bo: A pointer to a struct ttm_buffer_object.
- * @sync_obj: A sync object that signals when moving is complete.
+ * @fence: A fence object that signals when moving is complete.
* @evict: This is an evict move. Don't return until the buffer is idle.
* @no_wait_gpu: Return immediately if the GPU is busy.
* @new_mem: struct ttm_mem_reg indicating where to move.
@@ -1036,7 +1014,7 @@ extern void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
*/
extern int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
- void *sync_obj,
+ struct fence *fence,
bool evict, bool no_wait_gpu,
struct ttm_mem_reg *new_mem);
/**
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
index 8490cb8ee0d8..ff11a424f752 100644
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -39,16 +39,11 @@
*
* @head: list head for thread-private list.
* @bo: refcounted buffer object pointer.
- * @reserved: Indicates whether @bo has been reserved for validation.
- * @removed: Indicates whether @bo has been removed from lru lists.
- * @put_count: Number of outstanding references on bo::list_kref.
- * @old_sync_obj: Pointer to a sync object about to be unreferenced
*/
struct ttm_validate_buffer {
struct list_head head;
struct ttm_buffer_object *bo;
- void *old_sync_obj;
};
/**
@@ -100,7 +95,7 @@ extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
*
* @ticket: ww_acquire_ctx from reserve call
* @list: thread private list of ttm_validate_buffer structs.
- * @sync_obj: The new sync object for the buffers.
+ * @fence: The new exclusive fence for the buffers.
*
* This function should be called when command submission is complete, and
* it will add a new sync object to bos pointed to by entries on @list.
@@ -109,6 +104,7 @@ extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
*/
extern void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
- struct list_head *list, void *sync_obj);
+ struct list_head *list,
+ struct fence *fence);
#endif
--
cgit v1.2.1
From 30766f4c2d60dd2a3fc67b7114174c417f43f4c6 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 5 Aug 2014 20:02:42 +0200
Subject: netfilter: nat: move specific NAT IPv4 to core
Move the specific NAT IPv4 core functions that are called from the
hooks from iptable_nat.c to nf_nat_l3proto_ipv4.c. This prepares the
ground to allow iptables and nft to use the same NAT engine code that
comes in a follow up patch.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_nat_l3proto.h | 38 ++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
(limited to 'include')
diff --git a/include/net/netfilter/nf_nat_l3proto.h b/include/net/netfilter/nf_nat_l3proto.h
index 5a2919b2e09a..bc2d51574489 100644
--- a/include/net/netfilter/nf_nat_l3proto.h
+++ b/include/net/netfilter/nf_nat_l3proto.h
@@ -42,6 +42,44 @@ const struct nf_nat_l3proto *__nf_nat_l3proto_find(u8 l3proto);
int nf_nat_icmp_reply_translation(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned int hooknum);
+
+unsigned int nf_nat_ipv4_in(const struct nf_hook_ops *ops, struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ unsigned int (*do_chain)(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ struct nf_conn *ct));
+
+unsigned int nf_nat_ipv4_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ unsigned int (*do_chain)(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ struct nf_conn *ct));
+
+unsigned int nf_nat_ipv4_local_fn(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ unsigned int (*do_chain)(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ struct nf_conn *ct));
+
+unsigned int nf_nat_ipv4_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ unsigned int (*do_chain)(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ struct nf_conn *ct));
+
int nf_nat_icmpv6_reply_translation(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned int hooknum, unsigned int hdrlen);
--
cgit v1.2.1
From 5835d96e9ce4efdba8c6cefffc2f1575925456de Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 2 Sep 2014 14:46:04 -0400
Subject: percpu: implement [__]alloc_percpu_gfp()
Now that pcpu_alloc_area() can allocate only from populated areas,
it's easy to add atomic allocation support to [__]alloc_percpu().
Update pcpu_alloc() so that it accepts @gfp and skips all the blocking
operations and allocates only from the populated areas if @gfp doesn't
contain GFP_KERNEL. New interface functions [__]alloc_percpu_gfp()
are added.
While this means that atomic allocations are possible, this isn't
complete yet as there's no mechanism to ensure that certain amount of
populated areas is kept available and atomic allocations may keep
failing under certain conditions.
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/percpu.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 6f61b61b7996..d1b416da25ed 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -122,11 +122,16 @@ extern void __init setup_per_cpu_areas(void);
#endif
extern void __init percpu_init_late(void);
+extern void __percpu *__alloc_percpu_gfp(size_t size, size_t align, gfp_t gfp);
extern void __percpu *__alloc_percpu(size_t size, size_t align);
extern void free_percpu(void __percpu *__pdata);
extern phys_addr_t per_cpu_ptr_to_phys(void *addr);
-#define alloc_percpu(type) \
- (typeof(type) __percpu *)__alloc_percpu(sizeof(type), __alignof__(type))
+#define alloc_percpu_gfp(type, gfp) \
+ (typeof(type) __percpu *)__alloc_percpu_gfp(sizeof(type), \
+ __alignof__(type), gfp)
+#define alloc_percpu(type) \
+ (typeof(type) __percpu *)__alloc_percpu(sizeof(type), \
+ __alignof__(type))
#endif /* __LINUX_PERCPU_H */
--
cgit v1.2.1
From 1a4d76076cda69b0abf15463a8cebc172406da25 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 2 Sep 2014 14:46:05 -0400
Subject: percpu: implement asynchronous chunk population
The percpu allocator now supports atomic allocations by only
allocating from already populated areas but the mechanism to ensure
that there's adequate amount of populated areas was missing.
This patch expands pcpu_balance_work so that in addition to freeing
excess free chunks it also populates chunks to maintain an adequate
level of populated areas. pcpu_alloc() schedules pcpu_balance_work if
the amount of free populated areas is too low or after an atomic
allocation failure.
* PERPCU_DYNAMIC_RESERVE is increased by two pages to account for
PCPU_EMPTY_POP_PAGES_LOW.
* pcpu_async_enabled is added to gate both async jobs -
chunk->map_extend_work and pcpu_balance_work - so that we don't end
up scheduling them while the needed subsystems aren't up yet.
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/percpu.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index d1b416da25ed..a3aa63e47637 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -48,9 +48,9 @@
* intelligent way to determine this would be nice.
*/
#if BITS_PER_LONG > 32
-#define PERCPU_DYNAMIC_RESERVE (20 << 10)
+#define PERCPU_DYNAMIC_RESERVE (28 << 10)
#else
-#define PERCPU_DYNAMIC_RESERVE (12 << 10)
+#define PERCPU_DYNAMIC_RESERVE (20 << 10)
#endif
extern void *pcpu_base_addr;
--
cgit v1.2.1
From 36d32314ae773283413a91259eab8f546e7f485b Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 2 Sep 2014 08:27:05 +0800
Subject: ACPICA: Add _PSx names to the METHOD_NAME list.
Will be used by iASL.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acnames.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index c728113374f5..f97804bdf1ff 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -59,6 +59,10 @@
#define METHOD_NAME__PRS "_PRS"
#define METHOD_NAME__PRT "_PRT"
#define METHOD_NAME__PRW "_PRW"
+#define METHOD_NAME__PS0 "_PS0"
+#define METHOD_NAME__PS1 "_PS1"
+#define METHOD_NAME__PS2 "_PS2"
+#define METHOD_NAME__PS3 "_PS3"
#define METHOD_NAME__REG "_REG"
#define METHOD_NAME__SB_ "_SB_"
#define METHOD_NAME__SEG "_SEG"
--
cgit v1.2.1
From 63b8f8cd67fd8edfe1c30763e519e00b037891b5 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Tue, 2 Sep 2014 08:27:12 +0800
Subject: ACPICA: ACPI 5.1/Disassembler: Add GICC affinity subtable to SRAT
table.
Update template for SRAT.
Add clock_domain to standard CPU affinity subtable.
Mostly by Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/actbl1.h | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 7626bfeac2cb..29e79370641d 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -952,7 +952,8 @@ enum acpi_srat_type {
ACPI_SRAT_TYPE_CPU_AFFINITY = 0,
ACPI_SRAT_TYPE_MEMORY_AFFINITY = 1,
ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY = 2,
- ACPI_SRAT_TYPE_RESERVED = 3 /* 3 and greater are reserved */
+ ACPI_SRAT_TYPE_GICC_AFFINITY = 3,
+ ACPI_SRAT_TYPE_RESERVED = 4 /* 4 and greater are reserved */
};
/*
@@ -968,7 +969,7 @@ struct acpi_srat_cpu_affinity {
u32 flags;
u8 local_sapic_eid;
u8 proximity_domain_hi[3];
- u32 reserved; /* Reserved, must be zero */
+ u32 clock_domain;
};
/* Flags */
@@ -1010,6 +1011,20 @@ struct acpi_srat_x2apic_cpu_affinity {
#define ACPI_SRAT_CPU_ENABLED (1) /* 00: Use affinity structure */
+/* 3: GICC Affinity (ACPI 5.1) */
+
+struct acpi_srat_gicc_affinity {
+ struct acpi_subtable_header header;
+ u32 proximity_domain;
+ u32 acpi_processor_uid;
+ u32 flags;
+ u32 clock_domain;
+};
+
+/* Flags for struct acpi_srat_gicc_affinity */
+
+#define ACPI_SRAT_GICC_ENABLED (1) /* 00: Use affinity structure */
+
/* Reset to default packing */
#pragma pack()
--
cgit v1.2.1
From 34ea065e5e607dcbb249046c42a491f8b24ad849 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Tue, 2 Sep 2014 08:27:19 +0800
Subject: ACPICA: Headers: Add GTDT flag definitions for the timer subtable.
Mostly by Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/actbl3.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index 787bcc814463..5480cb2236bf 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -310,10 +310,15 @@ struct acpi_gtdt_timer_entry {
u32 common_flags;
};
+/* Flag Definitions: timer_flags and virtual_timer_flags above */
+
+#define ACPI_GTDT_GT_IRQ_MODE (1)
+#define ACPI_GTDT_GT_IRQ_POLARITY (1<<1)
+
/* Flag Definitions: common_flags above */
-#define ACPI_GTDT_GT_IS_SECURE_TIMER (1)
-#define ACPI_GTDT_GT_ALWAYS_ON (1<<1)
+#define ACPI_GTDT_GT_IS_SECURE_TIMER (1)
+#define ACPI_GTDT_GT_ALWAYS_ON (1<<1)
/* 1: SBSA Generic Watchdog Structure */
--
cgit v1.2.1
From 48c1947c53163afaadb3f140f46f5d968d405f5c Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 2 Sep 2014 08:27:40 +0800
Subject: ACPICA: Update version to 20140828.
Version 20140828.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpixf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index b7c89d47efbe..dc9d037d3055 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20140724
+#define ACPI_CA_VERSION 0x20140828
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
--
cgit v1.2.1
From 0504cd170c86f0617f27a31f1ba2328caa976707 Mon Sep 17 00:00:00 2001
From: Sonika Jindal <sonika.jindal@intel.com>
Date: Fri, 8 Aug 2014 16:23:40 +0530
Subject: drm: Renaming DP training vswing pre emph defines
Adding new defines, older one will be removed in the last patch in the series.
This is to rename the defines to have levels instead of values for vswing and
pre-emph levels as the values may differ in other scenarios like low vswing of
eDP1.4 where the values are different.
Done using following cocci patch for each define:
@@
@@
# define DP_TRAIN_VOLTAGE_SWING_400 (0 << 0)
+ # define DP_TRAIN_VOLTAGE_SWING_LEVEL_0 (0 << 0)
...
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_dp_helper.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index a21568bf1514..3840a055c6be 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -191,15 +191,23 @@
# define DP_TRAIN_VOLTAGE_SWING_SHIFT 0
# define DP_TRAIN_MAX_SWING_REACHED (1 << 2)
# define DP_TRAIN_VOLTAGE_SWING_400 (0 << 0)
+# define DP_TRAIN_VOLTAGE_SWING_LEVEL_0 (0 << 0)
# define DP_TRAIN_VOLTAGE_SWING_600 (1 << 0)
+# define DP_TRAIN_VOLTAGE_SWING_LEVEL_1 (1 << 0)
# define DP_TRAIN_VOLTAGE_SWING_800 (2 << 0)
+# define DP_TRAIN_VOLTAGE_SWING_LEVEL_2 (2 << 0)
# define DP_TRAIN_VOLTAGE_SWING_1200 (3 << 0)
+# define DP_TRAIN_VOLTAGE_SWING_LEVEL_3 (3 << 0)
# define DP_TRAIN_PRE_EMPHASIS_MASK (3 << 3)
# define DP_TRAIN_PRE_EMPHASIS_0 (0 << 3)
+# define DP_TRAIN_PRE_EMPH_LEVEL_0 (0 << 3)
# define DP_TRAIN_PRE_EMPHASIS_3_5 (1 << 3)
+# define DP_TRAIN_PRE_EMPH_LEVEL_1 (1 << 3)
# define DP_TRAIN_PRE_EMPHASIS_6 (2 << 3)
+# define DP_TRAIN_PRE_EMPH_LEVEL_2 (2 << 3)
# define DP_TRAIN_PRE_EMPHASIS_9_5 (3 << 3)
+# define DP_TRAIN_PRE_EMPH_LEVEL_3 (3 << 3)
# define DP_TRAIN_PRE_EMPHASIS_SHIFT 3
# define DP_TRAIN_MAX_PRE_EMPHASIS_REACHED (1 << 5)
--
cgit v1.2.1
From 26db63e3cb7af431707cd0467c7bcfefad25aa39 Mon Sep 17 00:00:00 2001
From: Sonika Jindal <sonika.jindal@intel.com>
Date: Fri, 8 Aug 2014 16:23:46 +0530
Subject: drm: Remove old defines for vswing and pre-emph values
This is the last patch in the series, so remove old defines
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_dp_helper.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 3840a055c6be..9305c718d789 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -190,23 +190,15 @@
# define DP_TRAIN_VOLTAGE_SWING_MASK 0x3
# define DP_TRAIN_VOLTAGE_SWING_SHIFT 0
# define DP_TRAIN_MAX_SWING_REACHED (1 << 2)
-# define DP_TRAIN_VOLTAGE_SWING_400 (0 << 0)
# define DP_TRAIN_VOLTAGE_SWING_LEVEL_0 (0 << 0)
-# define DP_TRAIN_VOLTAGE_SWING_600 (1 << 0)
# define DP_TRAIN_VOLTAGE_SWING_LEVEL_1 (1 << 0)
-# define DP_TRAIN_VOLTAGE_SWING_800 (2 << 0)
# define DP_TRAIN_VOLTAGE_SWING_LEVEL_2 (2 << 0)
-# define DP_TRAIN_VOLTAGE_SWING_1200 (3 << 0)
# define DP_TRAIN_VOLTAGE_SWING_LEVEL_3 (3 << 0)
# define DP_TRAIN_PRE_EMPHASIS_MASK (3 << 3)
-# define DP_TRAIN_PRE_EMPHASIS_0 (0 << 3)
# define DP_TRAIN_PRE_EMPH_LEVEL_0 (0 << 3)
-# define DP_TRAIN_PRE_EMPHASIS_3_5 (1 << 3)
# define DP_TRAIN_PRE_EMPH_LEVEL_1 (1 << 3)
-# define DP_TRAIN_PRE_EMPHASIS_6 (2 << 3)
# define DP_TRAIN_PRE_EMPH_LEVEL_2 (2 << 3)
-# define DP_TRAIN_PRE_EMPHASIS_9_5 (3 << 3)
# define DP_TRAIN_PRE_EMPH_LEVEL_3 (3 << 3)
# define DP_TRAIN_PRE_EMPHASIS_SHIFT 3
--
cgit v1.2.1
From 257f8cce5d40b811d229ed71602882baa0012808 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 29 Aug 2014 15:32:29 +0200
Subject: ALSA: pcm: Allow nonatomic trigger operations
Currently, many PCM operations are performed in a critical section
protected by spinlock, typically the trigger and pointer callbacks are
assumed to be atomic. This is basically because some trigger action
(e.g. PCM stop after drain or xrun) is done in the interrupt handler.
If a driver runs in a threaded irq, however, this doesn't have to be
atomic. And many devices want to handle trigger in a non-atomic
context due to lengthy communications.
This patch tries all PCM calls operational in non-atomic context.
What it does is very simple: replaces the substream spinlock with the
corresponding substream mutex when pcm->nonatomic flag is set. The
driver that wants to use the non-atomic PCM ops just needs to set the
flag and keep the rest as is. (Of course, it must not handle any PCM
ops in irq context.)
Note that the code doesn't check whether it's atomic-safe or not, but
trust in 100% that the driver sets pcm->nonatomic correctly.
One possible problem is the case where linked PCM substreams have
inconsistent nonatomic states. For avoiding this, snd_pcm_link()
returns an error if one tries to link an inconsistent PCM substream.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 58 ++++++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 46 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 6f3e10ca0e32..bc79962f4aa6 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -365,6 +365,7 @@ struct snd_pcm_runtime {
struct snd_pcm_group { /* keep linked substreams */
spinlock_t lock;
+ struct mutex mutex;
struct list_head substreams;
int count;
};
@@ -460,6 +461,7 @@ struct snd_pcm {
void (*private_free) (struct snd_pcm *pcm);
struct device *dev; /* actual hw device this belongs to */
bool internal; /* pcm is for internal use only */
+ bool nonatomic; /* whole PCM operations are in non-atomic context */
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
struct snd_pcm_oss oss;
#endif
@@ -493,6 +495,7 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree);
*/
extern rwlock_t snd_pcm_link_rwlock;
+extern struct rw_semaphore snd_pcm_link_rwsem;
int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info);
int snd_pcm_info_user(struct snd_pcm_substream *substream,
@@ -539,38 +542,69 @@ static inline int snd_pcm_stream_linked(struct snd_pcm_substream *substream)
static inline void snd_pcm_stream_lock(struct snd_pcm_substream *substream)
{
- read_lock(&snd_pcm_link_rwlock);
- spin_lock(&substream->self_group.lock);
+ if (substream->pcm->nonatomic) {
+ down_read(&snd_pcm_link_rwsem);
+ mutex_lock(&substream->self_group.mutex);
+ } else {
+ read_lock(&snd_pcm_link_rwlock);
+ spin_lock(&substream->self_group.lock);
+ }
}
static inline void snd_pcm_stream_unlock(struct snd_pcm_substream *substream)
{
- spin_unlock(&substream->self_group.lock);
- read_unlock(&snd_pcm_link_rwlock);
+ if (substream->pcm->nonatomic) {
+ mutex_unlock(&substream->self_group.mutex);
+ up_read(&snd_pcm_link_rwsem);
+ } else {
+ spin_unlock(&substream->self_group.lock);
+ read_unlock(&snd_pcm_link_rwlock);
+ }
}
static inline void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream)
{
- read_lock_irq(&snd_pcm_link_rwlock);
- spin_lock(&substream->self_group.lock);
+ if (substream->pcm->nonatomic) {
+ down_read(&snd_pcm_link_rwsem);
+ mutex_lock(&substream->self_group.mutex);
+ } else {
+ read_lock_irq(&snd_pcm_link_rwlock);
+ spin_lock(&substream->self_group.lock);
+ }
}
static inline void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream)
{
- spin_unlock(&substream->self_group.lock);
- read_unlock_irq(&snd_pcm_link_rwlock);
+ if (substream->pcm->nonatomic) {
+ mutex_unlock(&substream->self_group.mutex);
+ up_read(&snd_pcm_link_rwsem);
+ } else {
+ spin_unlock(&substream->self_group.lock);
+ read_unlock_irq(&snd_pcm_link_rwlock);
+ }
}
#define snd_pcm_stream_lock_irqsave(substream, flags) \
do { \
- read_lock_irqsave(&snd_pcm_link_rwlock, (flags)); \
- spin_lock(&substream->self_group.lock); \
+ if ((substream)->pcm->nonatomic) { \
+ (flags) = 0; /* XXX for avoid warning */ \
+ down_read(&snd_pcm_link_rwsem); \
+ mutex_lock(&(substream)->self_group.mutex); \
+ } else { \
+ read_lock_irqsave(&snd_pcm_link_rwlock, (flags)); \
+ spin_lock(&(substream)->self_group.lock); \
+ } \
} while (0)
#define snd_pcm_stream_unlock_irqrestore(substream, flags) \
do { \
- spin_unlock(&substream->self_group.lock); \
- read_unlock_irqrestore(&snd_pcm_link_rwlock, (flags)); \
+ if ((substream)->pcm->nonatomic) { \
+ mutex_unlock(&(substream)->self_group.mutex); \
+ up_read(&snd_pcm_link_rwsem); \
+ } else { \
+ spin_unlock(&(substream)->self_group.lock); \
+ read_unlock_irqrestore(&snd_pcm_link_rwlock, (flags)); \
+ } \
} while (0)
#define snd_pcm_group_for_each_entry(s, substream) \
--
cgit v1.2.1
From 7af142f752116e86adbe2073f2922d8265a77709 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 1 Sep 2014 11:19:37 +0200
Subject: ALSA: pcm: Uninline snd_pcm_stream_lock() and _unlock()
The previous commit for the non-atomic PCM ops added more codes to
snd_pcm_stream_lock() and its variants. Since they are inlined
functions, it resulted in a significant code size bloat. For reducing
the size bloat, this patch changes the inline functions to the normal
function calls. The export of rwlock and rwsem are removed as well,
since they are referred only in pcm_native.c now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 81 ++++++++---------------------------------------------
1 file changed, 12 insertions(+), 69 deletions(-)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index bc79962f4aa6..67e0bdb9f0fa 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -494,9 +494,6 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree);
* Native I/O
*/
-extern rwlock_t snd_pcm_link_rwlock;
-extern struct rw_semaphore snd_pcm_link_rwsem;
-
int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info);
int snd_pcm_info_user(struct snd_pcm_substream *substream,
struct snd_pcm_info __user *info);
@@ -540,72 +537,18 @@ static inline int snd_pcm_stream_linked(struct snd_pcm_substream *substream)
return substream->group != &substream->self_group;
}
-static inline void snd_pcm_stream_lock(struct snd_pcm_substream *substream)
-{
- if (substream->pcm->nonatomic) {
- down_read(&snd_pcm_link_rwsem);
- mutex_lock(&substream->self_group.mutex);
- } else {
- read_lock(&snd_pcm_link_rwlock);
- spin_lock(&substream->self_group.lock);
- }
-}
-
-static inline void snd_pcm_stream_unlock(struct snd_pcm_substream *substream)
-{
- if (substream->pcm->nonatomic) {
- mutex_unlock(&substream->self_group.mutex);
- up_read(&snd_pcm_link_rwsem);
- } else {
- spin_unlock(&substream->self_group.lock);
- read_unlock(&snd_pcm_link_rwlock);
- }
-}
-
-static inline void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream)
-{
- if (substream->pcm->nonatomic) {
- down_read(&snd_pcm_link_rwsem);
- mutex_lock(&substream->self_group.mutex);
- } else {
- read_lock_irq(&snd_pcm_link_rwlock);
- spin_lock(&substream->self_group.lock);
- }
-}
-
-static inline void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream)
-{
- if (substream->pcm->nonatomic) {
- mutex_unlock(&substream->self_group.mutex);
- up_read(&snd_pcm_link_rwsem);
- } else {
- spin_unlock(&substream->self_group.lock);
- read_unlock_irq(&snd_pcm_link_rwlock);
- }
-}
-
-#define snd_pcm_stream_lock_irqsave(substream, flags) \
-do { \
- if ((substream)->pcm->nonatomic) { \
- (flags) = 0; /* XXX for avoid warning */ \
- down_read(&snd_pcm_link_rwsem); \
- mutex_lock(&(substream)->self_group.mutex); \
- } else { \
- read_lock_irqsave(&snd_pcm_link_rwlock, (flags)); \
- spin_lock(&(substream)->self_group.lock); \
- } \
-} while (0)
-
-#define snd_pcm_stream_unlock_irqrestore(substream, flags) \
-do { \
- if ((substream)->pcm->nonatomic) { \
- mutex_unlock(&(substream)->self_group.mutex); \
- up_read(&snd_pcm_link_rwsem); \
- } else { \
- spin_unlock(&(substream)->self_group.lock); \
- read_unlock_irqrestore(&snd_pcm_link_rwlock, (flags)); \
- } \
-} while (0)
+void snd_pcm_stream_lock(struct snd_pcm_substream *substream);
+void snd_pcm_stream_unlock(struct snd_pcm_substream *substream);
+void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream);
+void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream);
+unsigned long _snd_pcm_stream_lock_irqsave(struct snd_pcm_substream *substream);
+#define snd_pcm_stream_lock_irqsave(substream, flags) \
+ do { \
+ typecheck(unsigned long, flags); \
+ flags = _snd_pcm_stream_lock_irqsave(substream); \
+ } while (0)
+void snd_pcm_stream_unlock_irqrestore(struct snd_pcm_substream *substream,
+ unsigned long flags);
#define snd_pcm_group_for_each_entry(s, substream) \
list_for_each_entry(s, &substream->group->substreams, link_list)
--
cgit v1.2.1
From 76ba59f8366f2d9282cb5bda9de75b4b68cbe55f Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 26 Aug 2014 11:03:16 +0100
Subject: genirq: Add irq_domain-aware core IRQ handler
Calling irq_find_mapping from outside a irq_{enter,exit} section is
unsafe and produces ugly messages if CONFIG_PROVE_RCU is enabled:
If coming from the idle state, the rcu_read_lock call in irq_find_mapping
will generate an unpleasant warning:
<quote>
===============================
[ INFO: suspicious RCU usage. ]
3.16.0-rc1+ #135 Not tainted
-------------------------------
include/linux/rcupdate.h:871 rcu_read_lock() used illegally while idle!
other info that might help us debug this:
RCU used illegally from idle CPU!
rcu_scheduler_active = 1, debug_locks = 0
RCU used illegally from extended quiescent state!
1 lock held by swapper/0/0:
#0: (rcu_read_lock){......}, at: [<ffffffc00010206c>]
irq_find_mapping+0x4c/0x198
</quote>
As this issue is fairly widespread and involves at least three
different architectures, a possible solution is to add a new
handle_domain_irq entry point into the generic IRQ code that
the interrupt controller code can call.
This new function takes an irq_domain, and calls into irq_find_domain
inside the irq_{enter,exit} block. An additional "lookup" parameter is
used to allow non-domain architecture code to be replaced by this as well.
Interrupt controllers can then be updated to use the new mechanism.
This code is sitting behind a new CONFIG_HANDLE_DOMAIN_IRQ, as not all
architectures implement set_irq_regs (yes, mn10300, I'm looking at you...).
Reported-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1409047421-27649-2-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqdesc.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 472c021a2d4f..ff24667cd86c 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -12,6 +12,8 @@ struct irq_affinity_notify;
struct proc_dir_entry;
struct module;
struct irq_desc;
+struct irq_domain;
+struct pt_regs;
/**
* struct irq_desc - interrupt descriptor
@@ -118,6 +120,23 @@ static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *de
int generic_handle_irq(unsigned int irq);
+#ifdef CONFIG_HANDLE_DOMAIN_IRQ
+/*
+ * Convert a HW interrupt number to a logical one using a IRQ domain,
+ * and handle the result interrupt number. Return -EINVAL if
+ * conversion failed. Providing a NULL domain indicates that the
+ * conversion has already been done.
+ */
+int __handle_domain_irq(struct irq_domain *domain, unsigned int hwirq,
+ bool lookup, struct pt_regs *regs);
+
+static inline int handle_domain_irq(struct irq_domain *domain,
+ unsigned int hwirq, struct pt_regs *regs)
+{
+ return __handle_domain_irq(domain, hwirq, true, regs);
+}
+#endif
+
/* Test to see if a driver has successfully requested an irq */
static inline int irq_has_action(unsigned int irq)
{
--
cgit v1.2.1
From eadf9e26fab7f9841adcc36f3559dbce7604fcd5 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Thu, 21 Aug 2014 16:49:16 -0300
Subject: [media] videodev2.h: add __user to v4l2_ext_control pointers
These are not copied to kernel space by video_usercopy, so mark them
as __user.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
include/uapi/linux/videodev2.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 778a3298fb34..0b1ba5c6a8d2 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1285,11 +1285,11 @@ struct v4l2_ext_control {
union {
__s32 value;
__s64 value64;
- char *string;
- __u8 *p_u8;
- __u16 *p_u16;
- __u32 *p_u32;
- void *ptr;
+ char __user *string;
+ __u8 __user *p_u8;
+ __u16 __user *p_u16;
+ __u32 __user *p_u32;
+ void __user *ptr;
};
} __attribute__ ((packed));
--
cgit v1.2.1
From a4412fc9486ec85686c6c7929e7e829f62ae377e Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@amacapital.net>
Date: Mon, 21 Jul 2014 18:49:14 -0700
Subject: seccomp,x86,arm,mips,s390: Remove nr parameter from secure_computing
The secure_computing function took a syscall number parameter, but
it only paid any attention to that parameter if seccomp mode 1 was
enabled. Rather than coming up with a kludge to get the parameter
to work in mode 2, just remove the parameter.
To avoid churn in arches that don't have seccomp filters (and may
not even support syscall_get_nr right now), this leaves the
parameter in secure_computing_strict, which is now a real function.
For ARM, this is a bit ugly due to the fact that ARM conditionally
supports seccomp filters. Fixing that would probably only be a
couple of lines of code, but it should be coordinated with the audit
maintainers.
This will be a slight slowdown on some arches. The right fix is to
pass in all of seccomp_data instead of trying to make just the
syscall nr part be fast.
This is a prerequisite for making two-phase seccomp work cleanly.
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: x86@kernel.org
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
include/linux/seccomp.h | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index 5d586a45a319..aa3c040230be 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -27,19 +27,17 @@ struct seccomp {
struct seccomp_filter *filter;
};
-extern int __secure_computing(int);
-static inline int secure_computing(int this_syscall)
+#ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
+extern int __secure_computing(void);
+static inline int secure_computing(void)
{
if (unlikely(test_thread_flag(TIF_SECCOMP)))
- return __secure_computing(this_syscall);
+ return __secure_computing();
return 0;
}
-
-/* A wrapper for architectures supporting only SECCOMP_MODE_STRICT. */
-static inline void secure_computing_strict(int this_syscall)
-{
- BUG_ON(secure_computing(this_syscall) != 0);
-}
+#else
+extern void secure_computing_strict(int this_syscall);
+#endif
extern long prctl_get_seccomp(void);
extern long prctl_set_seccomp(unsigned long, char __user *);
@@ -56,8 +54,11 @@ static inline int seccomp_mode(struct seccomp *s)
struct seccomp { };
struct seccomp_filter { };
-static inline int secure_computing(int this_syscall) { return 0; }
+#ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
+static inline int secure_computing(void) { return 0; }
+#else
static inline void secure_computing_strict(int this_syscall) { return; }
+#endif
static inline long prctl_get_seccomp(void)
{
--
cgit v1.2.1
From 13aa72f0fd0a9f98a41cefb662487269e2f1ad65 Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@amacapital.net>
Date: Mon, 21 Jul 2014 18:49:15 -0700
Subject: seccomp: Refactor the filter callback and the API
The reason I did this is to add a seccomp API that will be usable
for an x86 fast path. The x86 entry code needs to use a rather
expensive slow path for a syscall that might be visible to things
like ptrace. By splitting seccomp into two phases, we can check
whether we need the slow path and then use the fast path in if the
filter allows the syscall or just returns some errno.
As a side effect, I think the new code is much easier to understand
than the old code.
This has one user-visible effect: the audit record written for
SECCOMP_RET_TRACE is now a simple indication that SECCOMP_RET_TRACE
happened. It used to depend in a complicated way on what the tracer
did. I couldn't make much sense of it.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
include/linux/seccomp.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index aa3c040230be..38851085e481 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -35,6 +35,12 @@ static inline int secure_computing(void)
return __secure_computing();
return 0;
}
+
+#define SECCOMP_PHASE1_OK 0
+#define SECCOMP_PHASE1_SKIP 1
+
+extern u32 seccomp_phase1(void);
+int seccomp_phase2(u32 phase1_result);
#else
extern void secure_computing_strict(int this_syscall);
#endif
--
cgit v1.2.1
From d39bd00deabe57420f2a3669eb71b0e0c4997184 Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@amacapital.net>
Date: Mon, 21 Jul 2014 18:49:16 -0700
Subject: seccomp: Allow arch code to provide seccomp_data
populate_seccomp_data is expensive: it works by inspecting
task_pt_regs and various other bits to piece together all the
information, and it's does so in multiple partially redundant steps.
Arch-specific code in the syscall entry path can do much better.
Admittedly this adds a bit of additional room for error, but the
speedup should be worth it.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
include/linux/seccomp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index 38851085e481..a19ddacdac30 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -39,7 +39,7 @@ static inline int secure_computing(void)
#define SECCOMP_PHASE1_OK 0
#define SECCOMP_PHASE1_SKIP 1
-extern u32 seccomp_phase1(void);
+extern u32 seccomp_phase1(struct seccomp_data *sd);
int seccomp_phase2(u32 phase1_result);
#else
extern void secure_computing_strict(int this_syscall);
--
cgit v1.2.1
From 26ae4980b5e4739af93543a147facb421fb78ae8 Mon Sep 17 00:00:00 2001
From: Aaron Sierra <asierra@xes-inc.com>
Date: Fri, 15 Aug 2014 16:07:48 -0500
Subject: fsl_ifc: Fix csor_ext position in fsl_ifc_regs
According to Freescale manuals, the IFC_CSORn_EXT register is located
immediately _after_ the bank's IFC_CSORn register.
This patch adjusts the csor_ext member of and reserved register arrays
immediately surrounding the csor_cs structure to provide proper access
to this register.
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Acked-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
include/linux/fsl_ifc.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/fsl_ifc.h b/include/linux/fsl_ifc.h
index f49ddb1b2273..84d60cb841b1 100644
--- a/include/linux/fsl_ifc.h
+++ b/include/linux/fsl_ifc.h
@@ -781,13 +781,13 @@ struct fsl_ifc_regs {
__be32 amask;
u32 res4[0x2];
} amask_cs[FSL_IFC_BANK_COUNT];
- u32 res5[0x17];
+ u32 res5[0x18];
struct {
- __be32 csor_ext;
__be32 csor;
+ __be32 csor_ext;
u32 res6;
} csor_cs[FSL_IFC_BANK_COUNT];
- u32 res7[0x19];
+ u32 res7[0x18];
struct {
__be32 ftim[4];
u32 res8[0x8];
--
cgit v1.2.1
From 940001762ac514810e305aab356983829e5fa82a Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Wed, 3 Sep 2014 09:22:36 +0800
Subject: lib/rhashtable: allow user to set the minimum shifts of shrinking
Although rhashtable library allows user to specify a quiet big size
for user's created hash table, the table may be shrunk to a
very small size - HASH_MIN_SIZE(4) after object is removed from
the table at the first time. Subsequently, even if the total amount
of objects saved in the table is quite lower than user's initial
setting in a long time, the hash table size is still dynamically
adjusted by rhashtable_shrink() or rhashtable_expand() each time
object is inserted or removed from the table. However, as
synchronize_rcu() has to be called when table is shrunk or
expanded by the two functions, we should permit user to set the
minimum table size through configuring the minimum number of shifts
according to user specific requirement, avoiding these expensive
actions of shrinking or expanding because of calling synchronize_rcu().
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/rhashtable.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index 36826c0166c5..fb298e9d6d3a 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -44,6 +44,7 @@ struct rhashtable;
* @head_offset: Offset of rhash_head in struct to be hashed
* @hash_rnd: Seed to use while hashing
* @max_shift: Maximum number of shifts while expanding
+ * @min_shift: Minimum number of shifts while shrinking
* @hashfn: Function to hash key
* @obj_hashfn: Function to hash object
* @grow_decision: If defined, may return true if table should expand
@@ -57,6 +58,7 @@ struct rhashtable_params {
size_t head_offset;
u32 hash_rnd;
size_t max_shift;
+ size_t min_shift;
rht_hashfn_t hashfn;
rht_obj_hashfn_t obj_hashfn;
bool (*grow_decision)(const struct rhashtable *ht,
--
cgit v1.2.1
From 03e9f0cac5da6af85758276cb4624caf5911f2b9 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 3 Sep 2014 13:02:56 +0200
Subject: pinctrl: clean up after enable refactoring
commit 2243a87d90b42eb38bc281957df3e57c712b5e56
"pinctrl: avoid duplicated calling enable_pinmux_setting for a pin"
removed the .disable callback from the struct pinmux_ops,
making the .enable() callback the only remaining callback.
However .enable() is a bad name as it seems to imply that a
muxing can also be disabled. Rename the callback to .set_mux()
and also take this opportunity to clean out any remaining
mentions of .disable() from the documentation.
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Fan Wu <fwu@marvell.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/pinctrl/pinmux.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/pinctrl/pinmux.h b/include/linux/pinctrl/pinmux.h
index 3097aafbeb24..511bda9ed4bf 100644
--- a/include/linux/pinctrl/pinmux.h
+++ b/include/linux/pinctrl/pinmux.h
@@ -39,13 +39,12 @@ struct pinctrl_dev;
* name can be used with the generic @pinctrl_ops to retrieve the
* actual pins affected. The applicable groups will be returned in
* @groups and the number of groups in @num_groups
- * @enable: enable a certain muxing function with a certain pin group. The
+ * @set_mux: enable a certain muxing function with a certain pin group. The
* driver does not need to figure out whether enabling this function
* conflicts some other use of the pins in that group, such collisions
* are handled by the pinmux subsystem. The @func_selector selects a
* certain function whereas @group_selector selects a certain set of pins
* to be used. On simple controllers the latter argument may be ignored
- * @disable: disable a certain muxing selector with a certain pin group
* @gpio_request_enable: requests and enables GPIO on a certain pin.
* Implement this only if you can mux every pin individually as GPIO. The
* affected GPIO range is passed along with an offset(pin number) into that
@@ -68,8 +67,8 @@ struct pinmux_ops {
unsigned selector,
const char * const **groups,
unsigned * const num_groups);
- int (*enable) (struct pinctrl_dev *pctldev, unsigned func_selector,
- unsigned group_selector);
+ int (*set_mux) (struct pinctrl_dev *pctldev, unsigned func_selector,
+ unsigned group_selector);
int (*gpio_request_enable) (struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned offset);
--
cgit v1.2.1
From 3af0dbd592fe0a92002f16e341519ba03e92adf7 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Mon, 1 Sep 2014 11:19:52 +0800
Subject: gpio: mcp23s08 to support both device tree and platform data
Device tree is not enabled in some architecture where gpio
driver mcp23s08 is still required.
v2-changes:
- Parse device tree properties into platform data other than
individual variables.
v3-changes:
- Use of_node in gpio_chip device structure, because the
struct device * always has an of_node which is NULL when
OF is not used.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/spi/mcp23s08.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/linux/spi/mcp23s08.h b/include/linux/spi/mcp23s08.h
index 2d676d5aaa89..aa07d7b32568 100644
--- a/include/linux/spi/mcp23s08.h
+++ b/include/linux/spi/mcp23s08.h
@@ -22,4 +22,22 @@ struct mcp23s08_platform_data {
* base to base+15 (or base+31 for s17 variant).
*/
unsigned base;
+ /* Marks the device as a interrupt controller.
+ * NOTE: The interrupt functionality is only supported for i2c
+ * versions of the chips. The spi chips can also do the interrupts,
+ * but this is not supported by the linux driver yet.
+ */
+ bool irq_controller;
+
+ /* Sets the mirror flag in the IOCON register. Devices
+ * with two interrupt outputs (these are the devices ending with 17 and
+ * those that have 16 IOs) have two IO banks: IO 0-7 form bank 1 and
+ * IO 8-15 are bank 2. These chips have two different interrupt outputs:
+ * One for bank 1 and another for bank 2. If irq-mirror is set, both
+ * interrupts are generated regardless of the bank that an input change
+ * occurred on. If it is not set, the interrupt are only generated for
+ * the bank they belong to.
+ * On devices with only one interrupt output this property is useless.
+ */
+ bool mirror;
};
--
cgit v1.2.1
From 0d37899363b0e5486f8800231b7edd75e8b60942 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Wed, 3 Sep 2014 20:01:55 +0200
Subject: pinctrl: generic: Fix PIN_CONFIG_DRIVE_OPEN_SOURCE source/drain doc
mismatch
PIN_CONFIG_DRIVE_OPEN_SOURCE enables open source, not open drain.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/pinctrl/pinconf-generic.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index a15f10727eb8..d578a60eff23 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -57,7 +57,7 @@
* which are then pulled up with an external resistor. Setting this
* config will enable open drain mode, the argument is ignored.
* @PIN_CONFIG_DRIVE_OPEN_SOURCE: the pin will be driven with open source
- * (open emitter). Setting this config will enable open drain mode, the
+ * (open emitter). Setting this config will enable open source mode, the
* argument is ignored.
* @PIN_CONFIG_DRIVE_STRENGTH: the pin will sink or source at most the current
* passed as argument. The argument is in mA.
--
cgit v1.2.1
From 87fed556d08d21dd7dd3e0222c94c187e4c2d5e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Wed, 3 Sep 2014 10:35:13 +0200
Subject: bcma: get info about flash type SoC booted from
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There is an ongoing work on cleaning MIPS's nvram support so it could be
re-used on other platforms (bcm53xx to say precisely).
This will require a bit of extra logic in bcma this patch implements.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/bcma/bcma_regs.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/bcma/bcma_regs.h b/include/linux/bcma/bcma_regs.h
index 917dcd7965e7..e64ae7bf80a1 100644
--- a/include/linux/bcma/bcma_regs.h
+++ b/include/linux/bcma/bcma_regs.h
@@ -39,6 +39,11 @@
#define BCMA_RESET_CTL_RESET 0x0001
#define BCMA_RESET_ST 0x0804
+#define BCMA_NS_ROM_IOST_BOOT_DEV_MASK 0x0003
+#define BCMA_NS_ROM_IOST_BOOT_DEV_NOR 0x0000
+#define BCMA_NS_ROM_IOST_BOOT_DEV_NAND 0x0001
+#define BCMA_NS_ROM_IOST_BOOT_DEV_ROM 0x0002
+
/* BCMA PCI config space registers. */
#define BCMA_PCI_PMCSR 0x44
#define BCMA_PCI_PE 0x100
--
cgit v1.2.1
From 86dbf2ac6fcb2d2932d4610f2dfe0954aa0633f7 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 4 Sep 2014 19:44:06 +0200
Subject: ASoC: Add support for automatically going to BIAS_OFF on suspend
There is a substantial amount of drivers that in go to SND_SOC_BIAS_OFF on
suspend and go back to SND_SOC_BIAS_SUSPEND on resume (Often this is even
the only thing done in the suspend and resume handlers). This patch
introduces a new suspend_bias_off flag, which when set by a driver will let
the ASoC core automatically put the device's DAPM context at the
SND_SOC_BIAS_OFF level during suspend. Once the device is resumed the DAPM
context will go back to SND_SOC_BIAS_STANDBY (if the context is idle,
otherwise to SND_SOC_BIAS_ON).
This will allow us to remove a fair bit of duplicated code from the drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dapm.h | 3 ++-
include/sound/soc.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index aac04ff84eea..f955d65c5656 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -587,7 +587,8 @@ struct snd_soc_dapm_context {
enum snd_soc_bias_level suspend_bias_level;
struct delayed_work delayed_work;
unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
-
+ /* Go to BIAS_OFF in suspend if the DAPM context is idle */
+ unsigned int suspend_bias_off:1;
void (*seq_notifier)(struct snd_soc_dapm_context *,
enum snd_soc_dapm_type, int);
diff --git a/include/sound/soc.h b/include/sound/soc.h
index ce09302bfd6d..ac99fc083eec 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -848,6 +848,7 @@ struct snd_soc_codec_driver {
int (*set_bias_level)(struct snd_soc_codec *,
enum snd_soc_bias_level level);
bool idle_bias_off;
+ bool suspend_bias_off;
void (*seq_notifier)(struct snd_soc_dapm_context *,
enum snd_soc_dapm_type, int);
--
cgit v1.2.1
From 8d38821cbcf51292cd5a23469d03bd38932a3ba9 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 1 Aug 2014 14:15:10 +0200
Subject: resources: Add device-managed request/release_resource()
Provide device-managed implementations of the request_resource() and
release_resource() functions. Upon failure to request a resource, the new
devm_request_resource() function will output an error message for
consistent error reporting.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
---
include/linux/ioport.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 142ec544167c..2c5250222278 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -215,6 +215,11 @@ static inline int __deprecated check_region(resource_size_t s,
/* Wrappers for managed devices */
struct device;
+
+extern int devm_request_resource(struct device *dev, struct resource *root,
+ struct resource *new);
+extern void devm_release_resource(struct device *dev, struct resource *new);
+
#define devm_request_region(dev,start,n,name) \
__devm_request_region(dev, &ioport_resource, (start), (n), (name))
#define devm_request_mem_region(dev,start,n,name) \
--
cgit v1.2.1
From efd01a72e7ec99ed583151fbf16b176cd2158967 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 14:08:55 +0200
Subject: PCI/AER: Make <linux/aer.h> standalone includable
The header file references u16 and u32 types, but they are not defined in
the header nor does the header pull in the necessary includes for them.
This causes build breakage when the file is included without any of the
dependencies being satisfied from somewhere else.
Fix this by including linux/types.h (for u16 and u32).
[bhelgaas: removed pci_dev declaration (already added by 5ccb8225abf2)]
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/aer.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/aer.h b/include/linux/aer.h
index c826d1c28f9c..4fef65e57023 100644
--- a/include/linux/aer.h
+++ b/include/linux/aer.h
@@ -7,6 +7,8 @@
#ifndef _AER_H_
#define _AER_H_
+#include <linux/types.h>
+
#define AER_NONFATAL 0
#define AER_FATAL 1
#define AER_CORRECTABLE 2
--
cgit v1.2.1
From 3b5e6454aaf6b4439b19400d8365e2ec2d24e411 Mon Sep 17 00:00:00 2001
From: Gioh Kim <gioh.kim@lge.com>
Date: Thu, 4 Sep 2014 22:04:42 -0400
Subject: fs/buffer.c: support buffer cache allocations with gfp modifiers
A buffer cache is allocated from movable area because it is referred
for a while and released soon. But some filesystems are taking buffer
cache for a long time and it can disturb page migration.
New APIs are introduced to allocate buffer cache with user specific
flag. *_gfp APIs are for user want to set page allocation flag for
page cache allocation. And *_unmovable APIs are for the user wants to
allocate page cache from non-movable area.
Signed-off-by: Gioh Kim <gioh.kim@lge.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
---
include/linux/buffer_head.h | 47 ++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 42 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 324329ceea1e..73b45225a7ca 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -175,12 +175,13 @@ void __wait_on_buffer(struct buffer_head *);
wait_queue_head_t *bh_waitq_head(struct buffer_head *bh);
struct buffer_head *__find_get_block(struct block_device *bdev, sector_t block,
unsigned size);
-struct buffer_head *__getblk(struct block_device *bdev, sector_t block,
- unsigned size);
+struct buffer_head *__getblk_gfp(struct block_device *bdev, sector_t block,
+ unsigned size, gfp_t gfp);
void __brelse(struct buffer_head *);
void __bforget(struct buffer_head *);
void __breadahead(struct block_device *, sector_t block, unsigned int size);
-struct buffer_head *__bread(struct block_device *, sector_t block, unsigned size);
+struct buffer_head *__bread_gfp(struct block_device *,
+ sector_t block, unsigned size, gfp_t gfp);
void invalidate_bh_lrus(void);
struct buffer_head *alloc_buffer_head(gfp_t gfp_flags);
void free_buffer_head(struct buffer_head * bh);
@@ -295,7 +296,13 @@ static inline void bforget(struct buffer_head *bh)
static inline struct buffer_head *
sb_bread(struct super_block *sb, sector_t block)
{
- return __bread(sb->s_bdev, block, sb->s_blocksize);
+ return __bread_gfp(sb->s_bdev, block, sb->s_blocksize, __GFP_MOVABLE);
+}
+
+static inline struct buffer_head *
+sb_bread_unmovable(struct super_block *sb, sector_t block)
+{
+ return __bread_gfp(sb->s_bdev, block, sb->s_blocksize, 0);
}
static inline void
@@ -307,7 +314,7 @@ sb_breadahead(struct super_block *sb, sector_t block)
static inline struct buffer_head *
sb_getblk(struct super_block *sb, sector_t block)
{
- return __getblk(sb->s_bdev, block, sb->s_blocksize);
+ return __getblk_gfp(sb->s_bdev, block, sb->s_blocksize, __GFP_MOVABLE);
}
static inline struct buffer_head *
@@ -344,6 +351,36 @@ static inline void lock_buffer(struct buffer_head *bh)
__lock_buffer(bh);
}
+static inline struct buffer_head *getblk_unmovable(struct block_device *bdev,
+ sector_t block,
+ unsigned size)
+{
+ return __getblk_gfp(bdev, block, size, 0);
+}
+
+static inline struct buffer_head *__getblk(struct block_device *bdev,
+ sector_t block,
+ unsigned size)
+{
+ return __getblk_gfp(bdev, block, size, __GFP_MOVABLE);
+}
+
+/**
+ * __bread() - reads a specified block and returns the bh
+ * @bdev: the block_device to read from
+ * @block: number of block
+ * @size: size (in bytes) to read
+ *
+ * Reads a specified block, and returns buffer head that contains it.
+ * The page cache is allocated from movable area so that it can be migrated.
+ * It returns NULL if the block was unreadable.
+ */
+static inline struct buffer_head *
+__bread(struct block_device *bdev, sector_t block, unsigned size)
+{
+ return __bread_gfp(bdev, block, size, __GFP_MOVABLE);
+}
+
extern int __set_page_dirty_buffers(struct page *page);
#else /* CONFIG_BLOCK */
--
cgit v1.2.1
From 2f711939d2ea9dfaecebecd1324d2ec7a7a21f65 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Tue, 2 Sep 2014 15:49:25 +0200
Subject: ipv6: add sysctl_mld_qrv to configure query robustness variable
This patch adds a new sysctl_mld_qrv knob to configure the mldv1/v2 query
robustness variable. It specifies how many retransmit of unsolicited mld
retransmit should happen. Admins might want to tune this on lossy links.
Also reset mld state on interface down/up, so we pick up new sysctl
settings during interface up event.
IPv6 certification requests this knob to be available.
I didn't make this knob netns specific, as it is mostly a setting in a
physical environment and should be per host.
Cc: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ipv6.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index a2db816e8461..7e247e9b8765 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -121,6 +121,7 @@ struct frag_hdr {
/* sysctls */
extern int sysctl_mld_max_msf;
+extern int sysctl_mld_qrv;
#define _DEVINC(net, statname, modifier, idev, field) \
({ \
--
cgit v1.2.1
From a9fe8e29945d56f35235a3a0fba99b4cf181d211 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Tue, 2 Sep 2014 15:49:26 +0200
Subject: ipv4: implement igmp_qrv sysctl to tune igmp robustness variable
As in IPv6 people might increase the igmp query robustness variable to
make sure unsolicited state change reports aren't lost on the network. Add
and document this new knob to igmp code.
RFCs allow tuning this parameter back to first IGMP RFC, so we also use
this setting for all counters, including source specific multicast.
Also take over sysctl value when upping the interface and don't reuse
the last one seen on the interface.
Cc: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/igmp.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index f47550d75f85..2c677afeea47 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -39,6 +39,7 @@ static inline struct igmpv3_query *
extern int sysctl_igmp_max_memberships;
extern int sysctl_igmp_max_msf;
+extern int sysctl_igmp_qrv;
struct ip_sf_socklist {
unsigned int sl_max;
--
cgit v1.2.1
From 4334ac2db2be9e278c95fd15260c1f49f698ffc5 Mon Sep 17 00:00:00 2001
From: Marek Roszko <mark.roszko@gmail.com>
Date: Sat, 23 Aug 2014 23:12:04 -0400
Subject: pinctrl: at91: add drive strength configuration
The SAMA5 and SAM9x5 series both have drive strength
options for the PIOs. This patch adds the ability to set
one of three hardware options for drive strengths of low,
medium or high for the each pin. The actual current output
of the chip based on the setting is defined in the datasheets
and varies per pins separate from banks and with supply
voltage.
This patch adds three new dt-bindings that allow setting the
strength when configuring pins. By default, no change will
be made to the drive strength of a pin from its reset value.
Due to the difference between the register addresses of the
SAMA5 and SAM9x5 series, a new sama5d3-pinctrl id was added.
Signed-off-by: Marek Roszko <mark.roszko@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/dt-bindings/pinctrl/at91.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/pinctrl/at91.h b/include/dt-bindings/pinctrl/at91.h
index 0fee6ff77ffc..bbca3d038900 100644
--- a/include/dt-bindings/pinctrl/at91.h
+++ b/include/dt-bindings/pinctrl/at91.h
@@ -20,6 +20,11 @@
#define AT91_PINCTRL_PULL_UP_DEGLITCH (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DEGLITCH)
+#define AT91_PINCTRL_DRIVE_STRENGTH_DEFAULT (0x0 << 5)
+#define AT91_PINCTRL_DRIVE_STRENGTH_LOW (0x1 << 5)
+#define AT91_PINCTRL_DRIVE_STRENGTH_MED (0x2 << 5)
+#define AT91_PINCTRL_DRIVE_STRENGTH_HI (0x3 << 5)
+
#define AT91_PIOA 0
#define AT91_PIOB 1
#define AT91_PIOC 2
--
cgit v1.2.1
From 6b44f519017b219a12b37173c7eef8dfce2c0100 Mon Sep 17 00:00:00 2001
From: Scot Doyle <lkml14@scotdoyle.com>
Date: Sun, 24 Aug 2014 17:12:27 +0000
Subject: sched/wait: Document timeout corner case
The timeout may elapse without 0 being returned, such as when waiting
on an unused queue. Document this possibility.
Signed-off-by: Scot Doyle <lkml14@scotdoyle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/alpine.LNX.2.11.1408241710070.6462@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/wait.h | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 6fb1ba5f9b2f..034f6fc7c65f 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -280,9 +280,11 @@ do { \
* wake_up() has to be called after changing any variable that could
* change the result of the wait condition.
*
- * The function returns 0 if the @timeout elapsed, or the remaining
- * jiffies (at least 1) if the @condition evaluated to %true before
- * the @timeout elapsed.
+ * Returns:
+ * 0 if the @condition evaluated to %false after the @timeout elapsed,
+ * 1 if the @condition evaluated to %true after the @timeout elapsed,
+ * or the remaining jiffies (at least 1) if the @condition evaluated
+ * to %true before the @timeout elapsed.
*/
#define wait_event_timeout(wq, condition, timeout) \
({ \
@@ -363,9 +365,11 @@ do { \
* change the result of the wait condition.
*
* Returns:
- * 0 if the @timeout elapsed, -%ERESTARTSYS if it was interrupted by
- * a signal, or the remaining jiffies (at least 1) if the @condition
- * evaluated to %true before the @timeout elapsed.
+ * 0 if the @condition evaluated to %false after the @timeout elapsed,
+ * 1 if the @condition evaluated to %true after the @timeout elapsed,
+ * the remaining jiffies (at least 1) if the @condition evaluated
+ * to %true before the @timeout elapsed, or -%ERESTARTSYS if it was
+ * interrupted by a signal.
*/
#define wait_event_interruptible_timeout(wq, condition, timeout) \
({ \
--
cgit v1.2.1
From d98ad83ee86e523cc00cbf425f456fbd14b4fdc4 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 3 Sep 2014 15:24:57 +0300
Subject: mac80211: add Intel Mobile Communications copyright
Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.
For files that we have modified in the time since the change,
add the proper copyright notice now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c9b2bec8db47..db4975c33861 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4,6 +4,7 @@
* Copyright 2002-2005, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2013-2014 Intel Mobile Communications GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
--
cgit v1.2.1
From 2740f0cf8ec8bc7ee6a58f68841759e367dda98f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 3 Sep 2014 15:24:58 +0300
Subject: cfg80211: add Intel Mobile Communications copyright
Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.
For files that we have modified in the time since the change,
add the proper copyright notice now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 1 +
include/net/cfg80211.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 8018c915ee63..77d4f26e0235 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -6,6 +6,7 @@
* Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
* Copyright (c) 2005, Devicescape Software, Inc.
* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index ab21299c8f4d..6be68bb31918 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4,6 +4,7 @@
* 802.11 device and configuration interface
*
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2013-2014 Intel Mobile Communications GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
--
cgit v1.2.1
From 1c7e23bf50264a251de53ad9fb1604683b801258 Mon Sep 17 00:00:00 2001
From: Assaf Krauss <assaf.krauss@intel.com>
Date: Wed, 3 Sep 2014 15:25:00 +0300
Subject: nl80211: Allow declaring RRM-related features
Radio Resource Measurement (RRM) is a bundle of features which will
require the entire stack to participate.
In this patch, the driver is given the opportunity to advertise the
device's support for these RRM-related features, using feature flags:
1. Support for Quiet IEs.
2. Support for adding DS Parameter Set IE to probe requests.
3. Support for adding WFA TPC Report IE to probe requests.
4. Support for inserting tx power value to tx-ed packets at a fixed
offset. This is used in action frames, such as RRM's Link
Measurement Report, where the actual tx power should be reported
in the frame.
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/uapi/linux/nl80211.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index d097568da690..c166d3d23e55 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3968,6 +3968,16 @@ enum nl80211_ap_sme_features {
* @NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE: This driver supports dynamic
* channel bandwidth change (e.g., HT 20 <-> 40 MHz channel) during the
* lifetime of a BSS.
+ * @NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES: This device adds a DS Parameter
+ * Set IE to probe requests.
+ * @NL80211_FEATURE_WFA_TPC_IE_IN_PROBES: This device adds a WFA TPC Report IE
+ * to probe requests.
+ * @NL80211_FEATURE_QUIET: This device, in client mode, supports Quiet Period
+ * requests sent to it by an AP.
+ * @NL80211_FEATURE_TX_POWER_INSERTION: This device is capable of inserting the
+ * current tx power value into the TPC Report IE in the spectrum
+ * management TPC Report action frame, and in the Radio Measurement Link
+ * Measurement Report action frame.
*/
enum nl80211_feature_flags {
NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
@@ -3989,6 +3999,10 @@ enum nl80211_feature_flags {
NL80211_FEATURE_USERSPACE_MPM = 1 << 16,
NL80211_FEATURE_ACTIVE_MONITOR = 1 << 17,
NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE = 1 << 18,
+ NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES = 1 << 19,
+ NL80211_FEATURE_WFA_TPC_IE_IN_PROBES = 1 << 20,
+ NL80211_FEATURE_QUIET = 1 << 21,
+ NL80211_FEATURE_TX_POWER_INSERTION = 1 << 22,
};
/**
--
cgit v1.2.1
From bab5ab7d2a5466406e8003d038cc7ce6b2d5d804 Mon Sep 17 00:00:00 2001
From: Assaf Krauss <assaf.krauss@intel.com>
Date: Wed, 3 Sep 2014 15:25:01 +0300
Subject: nl80211: Add flag attribute for RRM connections
Add a flag attribute to use in associations, for tagging the target
connection as supporting RRM. It is the responsibility of upper
layers to set this flag only if both the underlying device, and the
target network indeed support RRM.
To be used in ASSOCIATE and CONNECT commands.
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 2 ++
include/uapi/linux/nl80211.h | 13 +++++++++++++
2 files changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 6be68bb31918..a887eeb5b31e 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1608,10 +1608,12 @@ struct cfg80211_auth_request {
*
* @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n)
* @ASSOC_REQ_DISABLE_VHT: Disable VHT
+ * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association
*/
enum cfg80211_assoc_req_flags {
ASSOC_REQ_DISABLE_HT = BIT(0),
ASSOC_REQ_DISABLE_VHT = BIT(1),
+ ASSOC_REQ_USE_RRM = BIT(2),
};
/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index c166d3d23e55..de69d3df5e55 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1594,6 +1594,17 @@ enum nl80211_commands {
* @NL80211_ATTR_TDLS_INITIATOR: flag attribute indicating the current end is
* the TDLS link initiator.
*
+ * @NL80211_ATTR_USE_RRM: flag for indicating whether the current connection
+ * shall support Radio Resource Measurements (11k). This attribute can be
+ * used with %NL80211_CMD_ASSOCIATE and %NL80211_CMD_CONNECT requests.
+ * User space applications are expected to use this flag only if the
+ * underlying device supports these minimal RRM features:
+ * %NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES,
+ * %NL80211_FEATURE_QUIET,
+ * If this flag is used, driver must add the Power Capabilities IE to the
+ * association request. In addition, it must also set the RRM capability
+ * flag in the association request's Capability Info field.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1936,6 +1947,8 @@ enum nl80211_attrs {
NL80211_ATTR_TDLS_INITIATOR,
+ NL80211_ATTR_USE_RRM,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
--
cgit v1.2.1
From 3057dbfdab1b86a77ed6d512fc857b032f78663b Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Date: Thu, 4 Sep 2014 23:57:40 +0200
Subject: cfg80211: enable dynack through nl80211
Enable ACK timeout estimation algorithm (dynack) using mac80211
set_coverage_class API. Dynack is activated passing coverage class equals to -1
to lower drivers and it is automatically disabled setting valid value for
coverage class.
Define NL80211_ATTR_WIPHY_DYN_ACK flag attribute to enable dynack from
userspace. In order to activate dynack NL80211_FEATURE_ACKTO_ESTIMATION feature
flag must be set by lower drivers to indicate dynack capability.
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 2 ++
include/uapi/linux/nl80211.h | 12 ++++++++++++
2 files changed, 14 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index a887eeb5b31e..0d17ec9df692 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1805,6 +1805,7 @@ struct cfg80211_connect_params {
* @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
* @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
* @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
+ * @WIPHY_PARAM_DYN_ACK: dynack has been enabled
*/
enum wiphy_params_flags {
WIPHY_PARAM_RETRY_SHORT = 1 << 0,
@@ -1812,6 +1813,7 @@ enum wiphy_params_flags {
WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
WIPHY_PARAM_COVERAGE_CLASS = 1 << 4,
+ WIPHY_PARAM_DYN_ACK = 1 << 5,
};
/*
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index de69d3df5e55..29c4399e08b9 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1605,6 +1605,12 @@ enum nl80211_commands {
* association request. In addition, it must also set the RRM capability
* flag in the association request's Capability Info field.
*
+ * @NL80211_ATTR_WIPHY_DYN_ACK: flag attribute used to enable ACK timeout
+ * estimation algorithm (dynack). In order to activate dynack
+ * %NL80211_FEATURE_ACKTO_ESTIMATION feature flag must be set by lower
+ * drivers to indicate dynack capability. Dynack is automatically disabled
+ * setting valid value for coverage class.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1949,6 +1955,8 @@ enum nl80211_attrs {
NL80211_ATTR_USE_RRM,
+ NL80211_ATTR_WIPHY_DYN_ACK,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -3991,6 +3999,9 @@ enum nl80211_ap_sme_features {
* current tx power value into the TPC Report IE in the spectrum
* management TPC Report action frame, and in the Radio Measurement Link
* Measurement Report action frame.
+ * @NL80211_FEATURE_ACKTO_ESTIMATION: This driver supports dynamic ACK timeout
+ * estimation (dynack). %NL80211_ATTR_WIPHY_DYN_ACK flag attribute is used
+ * to enable dynack.
*/
enum nl80211_feature_flags {
NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
@@ -4016,6 +4027,7 @@ enum nl80211_feature_flags {
NL80211_FEATURE_WFA_TPC_IE_IN_PROBES = 1 << 20,
NL80211_FEATURE_QUIET = 1 << 21,
NL80211_FEATURE_TX_POWER_INSERTION = 1 << 22,
+ NL80211_FEATURE_ACKTO_ESTIMATION = 1 << 23,
};
/**
--
cgit v1.2.1
From a4bcaf5556da649f0160e60fa7b4bb2c29801c12 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Date: Thu, 4 Sep 2014 23:57:41 +0200
Subject: mac80211: extend set_coverage_class signature
Extend mac80211 set_coverage_class API in order to enable ACK timeout
estimation algorithm (dynack) passing coverage class equals to -1
to lower drivers. Synchronize set_coverage_class routine signature with
mac80211 function pointer for p54, ath9k, ath9k_htc and ath5k drivers.
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index db4975c33861..c6e6a6804ee4 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2673,7 +2673,9 @@ enum ieee80211_roc_type {
*
* @set_coverage_class: Set slot time for given coverage class as specified
* in IEEE 802.11-2007 section 17.3.8.6 and modify ACK timeout
- * accordingly. This callback is not required and may sleep.
+ * accordingly; coverage class equals to -1 to enable ACK timeout
+ * estimation algorithm (dynack). To disable dynack set valid value for
+ * coverage class. This callback is not required and may sleep.
*
* @testmode_cmd: Implement a cfg80211 test mode command. The passed @vif may
* be %NULL. The callback can sleep.
@@ -2957,7 +2959,7 @@ struct ieee80211_ops {
int (*get_survey)(struct ieee80211_hw *hw, int idx,
struct survey_info *survey);
void (*rfkill_poll)(struct ieee80211_hw *hw);
- void (*set_coverage_class)(struct ieee80211_hw *hw, u8 coverage_class);
+ void (*set_coverage_class)(struct ieee80211_hw *hw, s16 coverage_class);
#ifdef CONFIG_NL80211_TESTMODE
int (*testmode_cmd)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
void *data, int len);
--
cgit v1.2.1
From 7d75a871888e3f5e1a7c99bf240d1cd67d8bdfa0 Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Fri, 5 Sep 2014 13:09:25 +0200
Subject: gpio: fix 'CONFIG_GPIO_IRQCHIP' comments
These two typos were introduced in commit 1425052097b5 ("gpio: add IRQ
chip helpers in gpiolib").
The correct symbol name is CONFIG_GPIOLIB_IRQCHIP.
[jkosina@suse.cz: add changelog]
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/gpio/driver.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 573e4f3243d0..4fcd60913a42 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -105,7 +105,7 @@ struct gpio_chip {
#ifdef CONFIG_GPIOLIB_IRQCHIP
/*
- * With CONFIG_GPIO_IRQCHIP we get an irqchip inside the gpiolib
+ * With CONFIG_GPIOLIB_IRQCHIP we get an irqchip inside the gpiolib
* to handle IRQs for most practical cases.
*/
struct irq_chip *irqchip;
@@ -221,7 +221,7 @@ int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
irq_flow_handler_t handler,
unsigned int type);
-#endif /* CONFIG_GPIO_IRQCHIP */
+#endif /* CONFIG_GPIOLIB_IRQCHIP */
#else /* CONFIG_GPIOLIB */
--
cgit v1.2.1
From 60a3b2253c413cf601783b070507d7dd6620c954 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 2 Sep 2014 22:53:44 +0200
Subject: net: bpf: make eBPF interpreter images read-only
With eBPF getting more extended and exposure to user space is on it's way,
hardening the memory range the interpreter uses to steer its command flow
seems appropriate. This patch moves the to be interpreted bytecode to
read-only pages.
In case we execute a corrupted BPF interpreter image for some reason e.g.
caused by an attacker which got past a verifier stage, it would not only
provide arbitrary read/write memory access but arbitrary function calls
as well. After setting up the BPF interpreter image, its contents do not
change until destruction time, thus we can setup the image on immutable
made pages in order to mitigate modifications to that code. The idea
is derived from commit 314beb9bcabf ("x86: bpf_jit_comp: secure bpf jit
against spraying attacks").
This is possible because bpf_prog is not part of sk_filter anymore.
After setup bpf_prog cannot be altered during its life-time. This prevents
any modifications to the entire bpf_prog structure (incl. function/JIT
image pointer).
Every eBPF program (including classic BPF that are migrated) have to call
bpf_prog_select_runtime() to select either interpreter or a JIT image
as a last setup step, and they all are being freed via bpf_prog_free(),
including non-JIT. Therefore, we can easily integrate this into the
eBPF life-time, plus since we directly allocate a bpf_prog, we have no
performance penalty.
Tested with seccomp and test_bpf testsuite in JIT/non-JIT mode and manual
inspection of kernel_page_tables. Brad Spengler proposed the same idea
via Twitter during development of this patch.
Joint work with Hannes Frederic Sowa.
Suggested-by: Brad Spengler <spender@grsecurity.net>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Kees Cook <keescook@chromium.org>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/filter.h | 49 ++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 44 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/filter.h b/include/linux/filter.h
index a5227ab8ccb1..c78994593355 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -9,6 +9,11 @@
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <uapi/linux/filter.h>
+#include <asm/cacheflush.h>
+
+struct sk_buff;
+struct sock;
+struct seccomp_data;
/* Internally used and optimized filter representation with extended
* instruction set based on top of classic BPF.
@@ -320,20 +325,23 @@ struct sock_fprog_kern {
struct sock_filter *filter;
};
-struct sk_buff;
-struct sock;
-struct seccomp_data;
+struct bpf_work_struct {
+ struct bpf_prog *prog;
+ struct work_struct work;
+};
struct bpf_prog {
+ u32 pages; /* Number of allocated pages */
u32 jited:1, /* Is our filter JIT'ed? */
len:31; /* Number of filter blocks */
struct sock_fprog_kern *orig_prog; /* Original BPF program */
+ struct bpf_work_struct *work; /* Deferred free work struct */
unsigned int (*bpf_func)(const struct sk_buff *skb,
const struct bpf_insn *filter);
+ /* Instructions for interpreter */
union {
struct sock_filter insns[0];
struct bpf_insn insnsi[0];
- struct work_struct work;
};
};
@@ -353,6 +361,26 @@ static inline unsigned int bpf_prog_size(unsigned int proglen)
#define bpf_classic_proglen(fprog) (fprog->len * sizeof(fprog->filter[0]))
+#ifdef CONFIG_DEBUG_SET_MODULE_RONX
+static inline void bpf_prog_lock_ro(struct bpf_prog *fp)
+{
+ set_memory_ro((unsigned long)fp, fp->pages);
+}
+
+static inline void bpf_prog_unlock_ro(struct bpf_prog *fp)
+{
+ set_memory_rw((unsigned long)fp, fp->pages);
+}
+#else
+static inline void bpf_prog_lock_ro(struct bpf_prog *fp)
+{
+}
+
+static inline void bpf_prog_unlock_ro(struct bpf_prog *fp)
+{
+}
+#endif /* CONFIG_DEBUG_SET_MODULE_RONX */
+
int sk_filter(struct sock *sk, struct sk_buff *skb);
void bpf_prog_select_runtime(struct bpf_prog *fp);
@@ -361,6 +389,17 @@ void bpf_prog_free(struct bpf_prog *fp);
int bpf_convert_filter(struct sock_filter *prog, int len,
struct bpf_insn *new_prog, int *new_len);
+struct bpf_prog *bpf_prog_alloc(unsigned int size, gfp_t gfp_extra_flags);
+struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size,
+ gfp_t gfp_extra_flags);
+void __bpf_prog_free(struct bpf_prog *fp);
+
+static inline void bpf_prog_unlock_free(struct bpf_prog *fp)
+{
+ bpf_prog_unlock_ro(fp);
+ __bpf_prog_free(fp);
+}
+
int bpf_prog_create(struct bpf_prog **pfp, struct sock_fprog_kern *fprog);
void bpf_prog_destroy(struct bpf_prog *fp);
@@ -450,7 +489,7 @@ static inline void bpf_jit_compile(struct bpf_prog *fp)
static inline void bpf_jit_free(struct bpf_prog *fp)
{
- kfree(fp);
+ bpf_prog_unlock_free(fp);
}
#endif /* CONFIG_BPF_JIT */
--
cgit v1.2.1
From f0db9b073415848709dd59a6394969882f517da9 Mon Sep 17 00:00:00 2001
From: Govindarajulu Varadarajan <_govind@gmx.com>
Date: Wed, 3 Sep 2014 03:17:20 +0530
Subject: ethtool: Add generic options for tunables
This patch adds new ethtool cmd, ETHTOOL_GTUNABLE & ETHTOOL_STUNABLE for getting
tunable values from driver.
Add get_tunable and set_tunable to ethtool_ops. Driver implements these
functions for getting/setting tunable value.
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/ethtool.h | 4 ++++
include/uapi/linux/ethtool.h | 28 ++++++++++++++++++++++++++++
2 files changed, 32 insertions(+)
(limited to 'include')
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index e658229fee39..c1a2d60dfb82 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -257,6 +257,10 @@ struct ethtool_ops {
struct ethtool_eeprom *, u8 *);
int (*get_eee)(struct net_device *, struct ethtool_eee *);
int (*set_eee)(struct net_device *, struct ethtool_eee *);
+ int (*get_tunable)(struct net_device *,
+ const struct ethtool_tunable *, void *);
+ int (*set_tunable)(struct net_device *,
+ const struct ethtool_tunable *, const void *);
};
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index e3c7a719c76b..7a364f2f3d3f 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -209,6 +209,32 @@ struct ethtool_value {
__u32 data;
};
+enum tunable_id {
+ ETHTOOL_ID_UNSPEC,
+ ETHTOOL_RX_COPYBREAK,
+};
+
+enum tunable_type_id {
+ ETHTOOL_TUNABLE_UNSPEC,
+ ETHTOOL_TUNABLE_U8,
+ ETHTOOL_TUNABLE_U16,
+ ETHTOOL_TUNABLE_U32,
+ ETHTOOL_TUNABLE_U64,
+ ETHTOOL_TUNABLE_STRING,
+ ETHTOOL_TUNABLE_S8,
+ ETHTOOL_TUNABLE_S16,
+ ETHTOOL_TUNABLE_S32,
+ ETHTOOL_TUNABLE_S64,
+};
+
+struct ethtool_tunable {
+ __u32 cmd;
+ __u32 id;
+ __u32 type_id;
+ __u32 len;
+ void *data[0];
+};
+
/**
* struct ethtool_regs - hardware register dump
* @cmd: Command number = %ETHTOOL_GREGS
@@ -1152,6 +1178,8 @@ enum ethtool_sfeatures_retval_bits {
#define ETHTOOL_GRSSH 0x00000046 /* Get RX flow hash configuration */
#define ETHTOOL_SRSSH 0x00000047 /* Set RX flow hash configuration */
+#define ETHTOOL_GTUNABLE 0x00000048 /* Get tunable configuration */
+#define ETHTOOL_STUNABLE 0x00000049 /* Set tunable configuration */
/* compatibility with older code */
#define SPARC_ETH_GSET ETHTOOL_GSET
--
cgit v1.2.1
From caa415270c732505240bb60171c44a7838c555e8 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 3 Sep 2014 22:21:56 -0700
Subject: ipv4: fix a race in update_or_create_fnhe()
nh_exceptions is effectively used under rcu, but lacks proper
barriers. Between kzalloc() and setting of nh->nh_exceptions(),
we need a proper memory barrier.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 4895c771c7f00 ("ipv4: Add FIB nexthop exceptions.")
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip_fib.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 9922093f575e..f30fd554127e 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -87,7 +87,7 @@ struct fib_nh {
int nh_saddr_genid;
struct rtable __rcu * __percpu *nh_pcpu_rth_output;
struct rtable __rcu *nh_rth_input;
- struct fnhe_hash_bucket *nh_exceptions;
+ struct fnhe_hash_bucket __rcu *nh_exceptions;
};
/*
--
cgit v1.2.1
From d546c621542df9e45eedc91f35356e887ac63b7b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 4 Sep 2014 08:21:31 -0700
Subject: ipv4: harden fnhe_hashfun()
Lets make this hash function a bit secure, as ICMP attacks are still
in the wild.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip_fib.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index f30fd554127e..dc9d2a27c315 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -65,7 +65,8 @@ struct fnhe_hash_bucket {
struct fib_nh_exception __rcu *chain;
};
-#define FNHE_HASH_SIZE 2048
+#define FNHE_HASH_SHIFT 11
+#define FNHE_HASH_SIZE (1 << FNHE_HASH_SHIFT)
#define FNHE_RECLAIM_DEPTH 5
struct fib_nh {
--
cgit v1.2.1
From 62bccb8cdb69051b95a55ab0c489e3cab261c8ef Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 4 Sep 2014 13:31:35 -0400
Subject: net-timestamp: Make the clone operation stand-alone from phy
timestamping
The phy timestamping takes a different path than the regular timestamping
does in that it will create a clone first so that the packets needing to be
timestamped can be placed in a queue, or the context block could be used.
In order to support these use cases I am pulling the core of the code out
so it can be used in other drivers beyond just phy devices.
In addition I have added a destructor named sock_efree which is meant to
provide a simple way for dropping the reference to skb exceptions that
aren't part of either the receive or send windows for the socket, and I
have removed some duplication in spots where this destructor could be used
in place of sock_edemux.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 2 ++
include/net/sock.h | 1 +
2 files changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 02529fcad1ac..1cf0cfaef10a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2690,6 +2690,8 @@ static inline ktime_t net_invalid_timestamp(void)
return ktime_set(0, 0);
}
+struct sk_buff *skb_clone_sk(struct sk_buff *skb);
+
#ifdef CONFIG_NETWORK_PHY_TIMESTAMPING
void skb_clone_tx_timestamp(struct sk_buff *skb);
diff --git a/include/net/sock.h b/include/net/sock.h
index 3fde6130789d..e02be37a3d91 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1574,6 +1574,7 @@ struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force,
void sock_wfree(struct sk_buff *skb);
void skb_orphan_partial(struct sk_buff *skb);
void sock_rfree(struct sk_buff *skb);
+void sock_efree(struct sk_buff *skb);
void sock_edemux(struct sk_buff *skb);
int sock_setsockopt(struct socket *sock, int level, int op,
--
cgit v1.2.1
From 82eabd9eb2ec1603282a2c3f74dfcb6fe0aaea0e Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 4 Sep 2014 13:32:11 -0400
Subject: net: merge cases where sock_efree and sock_edemux are the same
function
Since sock_efree and sock_demux are essentially the same code for non-TCP
sockets and the case where CONFIG_INET is not defined we can combine the
code or replace the call to sock_edemux in several spots. As a result we
can avoid a bit of unnecessary code or code duplication.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sock.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index e02be37a3d91..ad23e80cb8d3 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1575,7 +1575,11 @@ void sock_wfree(struct sk_buff *skb);
void skb_orphan_partial(struct sk_buff *skb);
void sock_rfree(struct sk_buff *skb);
void sock_efree(struct sk_buff *skb);
+#ifdef CONFIG_INET
void sock_edemux(struct sk_buff *skb);
+#else
+#define sock_edemux(skb) sock_efree(skb)
+#endif
int sock_setsockopt(struct socket *sock, int level, int op,
char __user *optval, unsigned int optlen);
--
cgit v1.2.1
From 56193d1bce2b2759cb4bdcc00cd05544894a0c90 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 5 Sep 2014 19:20:26 -0400
Subject: net: Add function for parsing the header length out of linear
ethernet frames
This patch updates some of the flow_dissector api so that it can be used to
parse the length of ethernet buffers stored in fragments. Most of the
changes needed were to __skb_get_poff as it needed to be updated to support
sending a linear buffer instead of a skb.
I have split __skb_get_poff into two functions, the first is skb_get_poff
and it retains the functionality of the original __skb_get_poff. The other
function is __skb_get_poff which now works much like __skb_flow_dissect in
relation to skb_flow_dissect in that it provides the same functionality but
works with just a data buffer and hlen instead of needing an skb.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/etherdevice.h | 1 +
include/linux/skbuff.h | 4 +++-
include/net/flow_keys.h | 2 ++
3 files changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 9c5529dc6d07..733980fce8e3 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -29,6 +29,7 @@
#include <asm/bitsperlong.h>
#ifdef __KERNEL__
+u32 eth_get_headlen(void *data, unsigned int max_len);
__be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev);
extern const struct header_ops eth_header_ops;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1cf0cfaef10a..07c9fdd0c126 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3218,7 +3218,9 @@ bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off);
int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
-u32 __skb_get_poff(const struct sk_buff *skb);
+u32 skb_get_poff(const struct sk_buff *skb);
+u32 __skb_get_poff(const struct sk_buff *skb, void *data,
+ const struct flow_keys *keys, int hlen);
/**
* skb_head_is_locked - Determine if the skb->head is locked down
diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h
index 9a03f73c4974..7ee2df083542 100644
--- a/include/net/flow_keys.h
+++ b/include/net/flow_keys.h
@@ -40,4 +40,6 @@ static inline __be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8
return __skb_flow_get_ports(skb, thoff, ip_proto, NULL, 0);
}
u32 flow_hash_from_keys(struct flow_keys *keys);
+unsigned int flow_get_hlen(const unsigned char *data, unsigned int max_len,
+ __be16 protocol);
#endif
--
cgit v1.2.1
From 04317dafd11dd7b0ec19b85f098414abae6ed5f7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 5 Sep 2014 15:33:32 -0700
Subject: tcp: introduce TCP_SKB_CB(skb)->tcp_tw_isn
TCP_SKB_CB(skb)->when has different meaning in output and input paths.
In output path, it contains a timestamp.
In input path, it contains an ISN, chosen by tcp_timewait_state_process()
Lets add a different name to ease code comprehension.
Note that 'when' field will disappear in following patch,
as skb_mstamp already contains timestamp, the anonymous
union will promptly disappear as well.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 590e01a476ac..0cd7d2c65dc0 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -698,7 +698,12 @@ struct tcp_skb_cb {
} header; /* For incoming frames */
__u32 seq; /* Starting sequence number */
__u32 end_seq; /* SEQ + FIN + SYN + datalen */
- __u32 when; /* used to compute rtt's */
+ union {
+ /* used in output path */
+ __u32 when; /* used to compute rtt's */
+ /* used in input path */
+ __u32 tcp_tw_isn; /* isn chosen by tcp_timewait_state_process() */
+ };
__u8 tcp_flags; /* TCP header flags. (tcp[13]) */
__u8 sacked; /* State flags for SACK/FACK. */
--
cgit v1.2.1
From 7faee5c0d514162853a343d93e4a0b6bb8bfec21 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 5 Sep 2014 15:33:33 -0700
Subject: tcp: remove TCP_SKB_CB(skb)->when
After commit 740b0f1841f6 ("tcp: switch rtt estimations to usec resolution"),
we no longer need to maintain timestamps in two different fields.
TCP_SKB_CB(skb)->when can be removed, as same information sits in skb_mstamp.stamp_jiffies
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 0cd7d2c65dc0..a4201ef216e8 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -672,6 +672,12 @@ void tcp_send_window_probe(struct sock *sk);
*/
#define tcp_time_stamp ((__u32)(jiffies))
+static inline u32 tcp_skb_timestamp(const struct sk_buff *skb)
+{
+ return skb->skb_mstamp.stamp_jiffies;
+}
+
+
#define tcp_flag_byte(th) (((u_int8_t *)th)[13])
#define TCPHDR_FIN 0x01
@@ -698,12 +704,7 @@ struct tcp_skb_cb {
} header; /* For incoming frames */
__u32 seq; /* Starting sequence number */
__u32 end_seq; /* SEQ + FIN + SYN + datalen */
- union {
- /* used in output path */
- __u32 when; /* used to compute rtt's */
- /* used in input path */
- __u32 tcp_tw_isn; /* isn chosen by tcp_timewait_state_process() */
- };
+ __u32 tcp_tw_isn; /* isn chosen by tcp_timewait_state_process() */
__u8 tcp_flags; /* TCP header flags. (tcp[13]) */
__u8 sacked; /* State flags for SACK/FACK. */
--
cgit v1.2.1
From dec38b5ce6a9edb406c60c2670b26a1a4262fdb9 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Sat, 6 Sep 2014 01:11:12 +0100
Subject: regulator: isl9305: Add Intersil ISL9305/H driver
The ISL9305 and ISL9305H are mini-PMICs offering two DCDC regulators and
two LDO regulators. While there are some register differences between them
these do not affect the current Linux driver as the relevant features are
not yet supported.
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/platform_data/isl9305.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 include/linux/platform_data/isl9305.h
(limited to 'include')
diff --git a/include/linux/platform_data/isl9305.h b/include/linux/platform_data/isl9305.h
new file mode 100644
index 000000000000..1419133fa69e
--- /dev/null
+++ b/include/linux/platform_data/isl9305.h
@@ -0,0 +1,30 @@
+/*
+ * isl9305 - Intersil ISL9305 DCDC regulator
+ *
+ * Copyright 2014 Linaro Ltd
+ *
+ * Author: Mark Brown <broonie@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __ISL9305_H
+#define __ISL9305_H
+
+#define ISL9305_DCD1 0
+#define ISL9305_DCD2 1
+#define ISL9305_LDO1 2
+#define ISL9305_LDO2 3
+
+#define ISL9305_MAX_REGULATOR ISL9305_LDO2
+
+struct regulator_init_data;
+
+struct isl9305_pdata {
+ struct regulator_init_data *init_data[ISL9305_MAX_REGULATOR];
+};
+
+#endif
--
cgit v1.2.1
From c815dbb47758bd469927849fdd45fed3ce206e73 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 20 Aug 2014 13:08:46 +0200
Subject: ASoC: Add snd_soc_component_{get,set}_drvdata()
Add Add snd_soc_component_{get,set}_drvdata() similar to
snd_soc_codec_{get,set}_drvdata() and snd_soc_platform_{get,set}_drvdata().
Also update them to use the new functions internally.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index ce09302bfd6d..f8b23dd7c3a7 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1298,26 +1298,37 @@ static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
return card->drvdata;
}
+static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c,
+ void *data)
+{
+ dev_set_drvdata(c->dev, data);
+}
+
+static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c)
+{
+ return dev_get_drvdata(c->dev);
+}
+
static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
void *data)
{
- dev_set_drvdata(codec->dev, data);
+ snd_soc_component_set_drvdata(&codec->component, data);
}
static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
{
- return dev_get_drvdata(codec->dev);
+ return snd_soc_component_get_drvdata(&codec->component);
}
static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
void *data)
{
- dev_set_drvdata(platform->dev, data);
+ snd_soc_component_set_drvdata(&platform->component, data);
}
static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
{
- return dev_get_drvdata(platform->dev);
+ return snd_soc_component_get_drvdata(&platform->component);
}
static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
--
cgit v1.2.1
From 0634814fe0f29a46c44386a03f259f99c983bf7e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 20 Aug 2014 13:08:49 +0200
Subject: ASoC: Remove table based DAPM/control setup support from
snd_soc_platform_driver
There are no users left and new users should rather use the component_driver
struct embedded in the snd_soc_platform_driver struct to do this. E.g.:
static const struct snd_soc_platform_driver foobar_driver = {
.component_driver = {
.dapm_widgets = ...,
.num_dapm_widgets = ...,
...,
},
...
};
instead of
static const struct snd_soc_platform_driver foobar_driver = {
.dapm_widgets = ...,
.num_dapm_widgets = ...,
...
};
This also allows us to remove the steal_sibling_dai_widgets hack.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/sound/soc.h | 9 ---------
1 file changed, 9 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index f8b23dd7c3a7..cd141a156da2 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -764,7 +764,6 @@ struct snd_soc_component {
unsigned int num_dapm_widgets;
const struct snd_soc_dapm_route *dapm_routes;
unsigned int num_dapm_routes;
- bool steal_sibling_dai_widgets;
struct snd_soc_codec *codec;
int (*probe)(struct snd_soc_component *);
@@ -868,14 +867,6 @@ struct snd_soc_platform_driver {
int (*pcm_new)(struct snd_soc_pcm_runtime *);
void (*pcm_free)(struct snd_pcm *);
- /* Default control and setup, added after probe() is run */
- const struct snd_kcontrol_new *controls;
- int num_controls;
- const struct snd_soc_dapm_widget *dapm_widgets;
- int num_dapm_widgets;
- const struct snd_soc_dapm_route *dapm_routes;
- int num_dapm_routes;
-
/*
* For platform caused delay reporting.
* Optional.
--
cgit v1.2.1
From a8adcc9012d8502e06ba7b3f966bad8f2c58edc3 Mon Sep 17 00:00:00 2001
From: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Date: Wed, 27 Aug 2014 23:44:08 +0530
Subject: power_supply: Add boot and calibration attributes
Usually PMIC's come with coulomb counting mechanism which can be
used to implement a Fuel Gauginig solution in Software itself.
One of key input to these SW Fuel Gauge solutioons is the boot up
parameters like boot voltage and boot current.
This patch adds the VOLTAGE_BOOT and CURRENT_BOOT power supply attributes
to report bootup voltage and current.
This patch also adds CALIBRATE power supply attribute which useful is
for calibrating the battery/coulomb counter.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
include/linux/power_supply.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index f3dea41dbcd2..de59a28b1b5b 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -102,9 +102,11 @@ enum power_supply_property {
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_AVG,
POWER_SUPPLY_PROP_VOLTAGE_OCV,
+ POWER_SUPPLY_PROP_VOLTAGE_BOOT,
POWER_SUPPLY_PROP_CURRENT_MAX,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
+ POWER_SUPPLY_PROP_CURRENT_BOOT,
POWER_SUPPLY_PROP_POWER_NOW,
POWER_SUPPLY_PROP_POWER_AVG,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
@@ -146,6 +148,7 @@ enum power_supply_property {
POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
+ POWER_SUPPLY_PROP_CALIBRATE,
/* Properties of type `const char *' */
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
@@ -291,6 +294,7 @@ static inline bool power_supply_is_amp_property(enum power_supply_property psp)
case POWER_SUPPLY_PROP_CURRENT_MAX:
case POWER_SUPPLY_PROP_CURRENT_NOW:
case POWER_SUPPLY_PROP_CURRENT_AVG:
+ case POWER_SUPPLY_PROP_CURRENT_BOOT:
return 1;
default:
break;
@@ -315,6 +319,7 @@ static inline bool power_supply_is_watt_property(enum power_supply_property psp)
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
case POWER_SUPPLY_PROP_VOLTAGE_AVG:
case POWER_SUPPLY_PROP_VOLTAGE_OCV:
+ case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
case POWER_SUPPLY_PROP_POWER_NOW:
--
cgit v1.2.1
From 521d24ee598bd8a8b71d7ac76ce2c0da0e548406 Mon Sep 17 00:00:00 2001
From: Pranith Kumar <bobby.prani@gmail.com>
Date: Tue, 8 Jul 2014 18:26:18 -0400
Subject: rcu: Return bool type in rcu_lockdep_current_cpu_online()
Return true instead of 1 in rcu_lockdep_current_cpu_online() as this
has bool as return type.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index d231aa17b1d7..7e47e44bce03 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -349,7 +349,7 @@ bool rcu_lockdep_current_cpu_online(void);
#else /* #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU) */
static inline bool rcu_lockdep_current_cpu_online(void)
{
- return 1;
+ return true;
}
#endif /* #else #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU) */
--
cgit v1.2.1
From 85b39d305bfe809a11ff2770d380be3e2465beec Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 8 Jul 2014 15:17:59 -0700
Subject: rcu: Uninline rcu_read_lock_held()
This commit uninlines rcu_read_lock_held(). According to "size vmlinux"
this saves 28549 in .text:
- 5541731 3014560 14757888 23314179
+ 5513182 3026848 14757888 23297918
Note: it looks as if the data grows by 12288 bytes but this is not true,
it does not actually grow. But .data starts with ALIGN(THREAD_SIZE) and
since .text shrinks the padding grows, and thus .data grows too as it
seen by /bin/size. diff System.map:
- ffffffff81510000 D _sdata
- ffffffff81510000 D init_thread_union
+ ffffffff81509000 D _sdata
+ ffffffff8150c000 D init_thread_union
Perhaps we can change vmlinux.lds.S to .data itself, so that /bin/size
can't "wrongly" report that .data grows if .text shinks.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 36 +-----------------------------------
1 file changed, 1 insertion(+), 35 deletions(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 7e47e44bce03..321ed0d4e675 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -371,41 +371,7 @@ extern struct lockdep_map rcu_sched_lock_map;
extern struct lockdep_map rcu_callback_map;
int debug_lockdep_rcu_enabled(void);
-/**
- * rcu_read_lock_held() - might we be in RCU read-side critical section?
- *
- * If CONFIG_DEBUG_LOCK_ALLOC is selected, returns nonzero iff in an RCU
- * read-side critical section. In absence of CONFIG_DEBUG_LOCK_ALLOC,
- * this assumes we are in an RCU read-side critical section unless it can
- * prove otherwise. This is useful for debug checks in functions that
- * require that they be called within an RCU read-side critical section.
- *
- * Checks debug_lockdep_rcu_enabled() to prevent false positives during boot
- * and while lockdep is disabled.
- *
- * Note that rcu_read_lock() and the matching rcu_read_unlock() must
- * occur in the same context, for example, it is illegal to invoke
- * rcu_read_unlock() in process context if the matching rcu_read_lock()
- * was invoked from within an irq handler.
- *
- * Note that rcu_read_lock() is disallowed if the CPU is either idle or
- * offline from an RCU perspective, so check for those as well.
- */
-static inline int rcu_read_lock_held(void)
-{
- if (!debug_lockdep_rcu_enabled())
- return 1;
- if (!rcu_is_watching())
- return 0;
- if (!rcu_lockdep_current_cpu_online())
- return 0;
- return lock_is_held(&rcu_lock_map);
-}
-
-/*
- * rcu_read_lock_bh_held() is defined out of line to avoid #include-file
- * hell.
- */
+int rcu_read_lock_held(void);
int rcu_read_lock_bh_held(void);
/**
--
cgit v1.2.1
From 9fdd3bc9005824704f9802bec7b3e06f5edae434 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 29 Jul 2014 14:50:47 -0700
Subject: rcu: Break more call_rcu() deadlock involving scheduler and perf
Commit 96d3fd0d315a9 (rcu: Break call_rcu() deadlock involving scheduler
and perf) covered the case where __call_rcu_nocb_enqueue() needs to wake
the rcuo kthread due to the queue being initially empty, but did not
do anything for the case where the queue was overflowing. This commit
therefore also defers wakeup for the overflow case.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/trace/events/rcu.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index aca382266411..9b56f37148cf 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -180,9 +180,12 @@ TRACE_EVENT(rcu_grace_period_init,
* argument is a string as follows:
*
* "WakeEmpty": Wake rcuo kthread, first CB to empty list.
+ * "WakeEmptyIsDeferred": Wake rcuo kthread later, first CB to empty list.
* "WakeOvf": Wake rcuo kthread, CB list is huge.
+ * "WakeOvfIsDeferred": Wake rcuo kthread later, CB list is huge.
* "WakeNot": Don't wake rcuo kthread.
* "WakeNotPoll": Don't wake rcuo kthread because it is polling.
+ * "DeferredWake": Carried out the "IsDeferred" wakeup.
* "Poll": Start of new polling cycle for rcu_nocb_poll.
* "Sleep": Sleep waiting for CBs for !rcu_nocb_poll.
* "WokeEmpty": rcuo kthread woke to find empty list.
--
cgit v1.2.1
From eea203fea3484598280a07fe503e025e886297fb Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 14 Jul 2014 09:16:15 -0400
Subject: rcu: Use pr_alert/pr_cont for printing logs
User pr_alert/pr_cont for printing the logs from rcutorture module directly
instead of writing it to a buffer and then printing it. This allows us from not
having to allocate such buffers. Also remove a resulting empty function.
I tested this using the parse-torture.sh script as follows:
$ dmesg | grep torture > log.txt
$ bash parse-torture.sh log.txt test
$
There were no warnings which means that parsing went fine.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/torture.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/torture.h b/include/linux/torture.h
index 5ca58fcbaf1b..fec46f8c08eb 100644
--- a/include/linux/torture.h
+++ b/include/linux/torture.h
@@ -51,7 +51,7 @@
/* Definitions for online/offline exerciser. */
int torture_onoff_init(long ooholdoff, long oointerval);
-char *torture_onoff_stats(char *page);
+void torture_onoff_stats(void);
bool torture_onoff_failures(void);
/* Low-rider random number generator. */
--
cgit v1.2.1
From 8315f42295d2667a7f942f154b73a86fd7cb2227 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 27 Jun 2014 13:42:20 -0700
Subject: rcu: Add call_rcu_tasks()
This commit adds a new RCU-tasks flavor of RCU, which provides
call_rcu_tasks(). This RCU flavor's quiescent states are voluntary
context switch (not preemption!) and userspace execution (not the idle
loop -- use some sort of schedule_on_each_cpu() if you need to handle the
idle tasks. Note that unlike other RCU flavors, these quiescent states
occur in tasks, not necessarily CPUs. Includes fixes from Steven Rostedt.
This RCU flavor is assumed to have very infrequent latency-tolerant
updaters. This assumption permits significant simplifications, including
a single global callback list protected by a single global lock, along
with a single task-private linked list containing all tasks that have not
yet passed through a quiescent state. If experience shows this assumption
to be incorrect, the required additional complexity will be added.
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/init_task.h | 9 +++++++++
include/linux/rcupdate.h | 36 ++++++++++++++++++++++++++++++++++++
include/linux/sched.h | 23 ++++++++++++-----------
3 files changed, 57 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 2bb4c4f3531a..dffd9258ee60 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -117,6 +117,14 @@ extern struct group_info init_groups;
#else
#define INIT_TASK_RCU_PREEMPT(tsk)
#endif
+#ifdef CONFIG_TASKS_RCU
+#define INIT_TASK_RCU_TASKS(tsk) \
+ .rcu_tasks_holdout = false, \
+ .rcu_tasks_holdout_list = \
+ LIST_HEAD_INIT(tsk.rcu_tasks_holdout_list),
+#else
+#define INIT_TASK_RCU_TASKS(tsk)
+#endif
extern struct cred init_cred;
@@ -224,6 +232,7 @@ extern struct task_group root_task_group;
INIT_FTRACE_GRAPH \
INIT_TRACE_RECURSION \
INIT_TASK_RCU_PREEMPT(tsk) \
+ INIT_TASK_RCU_TASKS(tsk) \
INIT_CPUSET_SEQ(tsk) \
INIT_RT_MUTEXES(tsk) \
INIT_VTIME(tsk) \
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index d231aa17b1d7..3432063f4c87 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -197,6 +197,26 @@ void call_rcu_sched(struct rcu_head *head,
void synchronize_sched(void);
+/**
+ * call_rcu_tasks() - Queue an RCU for invocation task-based grace period
+ * @head: structure to be used for queueing the RCU updates.
+ * @func: actual callback function to be invoked after the grace period
+ *
+ * The callback function will be invoked some time after a full grace
+ * period elapses, in other words after all currently executing RCU
+ * read-side critical sections have completed. call_rcu_tasks() assumes
+ * that the read-side critical sections end at a voluntary context
+ * switch (not a preemption!), entry into idle, or transition to usermode
+ * execution. As such, there are no read-side primitives analogous to
+ * rcu_read_lock() and rcu_read_unlock() because this primitive is intended
+ * to determine that all tasks have passed through a safe state, not so
+ * much for data-strcuture synchronization.
+ *
+ * See the description of call_rcu() for more detailed information on
+ * memory ordering guarantees.
+ */
+void call_rcu_tasks(struct rcu_head *head, void (*func)(struct rcu_head *head));
+
#ifdef CONFIG_PREEMPT_RCU
void __rcu_read_lock(void);
@@ -294,6 +314,22 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
rcu_irq_exit(); \
} while (0)
+/*
+ * Note a voluntary context switch for RCU-tasks benefit. This is a
+ * macro rather than an inline function to avoid #include hell.
+ */
+#ifdef CONFIG_TASKS_RCU
+#define rcu_note_voluntary_context_switch(t) \
+ do { \
+ preempt_disable(); /* Exclude synchronize_sched(); */ \
+ if (ACCESS_ONCE((t)->rcu_tasks_holdout)) \
+ ACCESS_ONCE((t)->rcu_tasks_holdout) = false; \
+ preempt_enable(); \
+ } while (0)
+#else /* #ifdef CONFIG_TASKS_RCU */
+#define rcu_note_voluntary_context_switch(t) do { } while (0)
+#endif /* #else #ifdef CONFIG_TASKS_RCU */
+
#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP)
bool __rcu_is_watching(void);
#endif /* #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP) */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5c2c885ee52b..eaacac4ae77d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1270,6 +1270,11 @@ struct task_struct {
#ifdef CONFIG_TREE_PREEMPT_RCU
struct rcu_node *rcu_blocked_node;
#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+#ifdef CONFIG_TASKS_RCU
+ unsigned long rcu_tasks_nvcsw;
+ bool rcu_tasks_holdout;
+ struct list_head rcu_tasks_holdout_list;
+#endif /* #ifdef CONFIG_TASKS_RCU */
#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
struct sched_info sched_info;
@@ -2000,28 +2005,24 @@ extern void task_clear_jobctl_pending(struct task_struct *task,
unsigned int mask);
#ifdef CONFIG_PREEMPT_RCU
-
#define RCU_READ_UNLOCK_BLOCKED (1 << 0) /* blocked while in RCU read-side. */
#define RCU_READ_UNLOCK_NEED_QS (1 << 1) /* RCU core needs CPU response. */
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
static inline void rcu_copy_process(struct task_struct *p)
{
+#ifdef CONFIG_PREEMPT_RCU
p->rcu_read_lock_nesting = 0;
p->rcu_read_unlock_special = 0;
-#ifdef CONFIG_TREE_PREEMPT_RCU
p->rcu_blocked_node = NULL;
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
INIT_LIST_HEAD(&p->rcu_node_entry);
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
+#ifdef CONFIG_TASKS_RCU
+ p->rcu_tasks_holdout = false;
+ INIT_LIST_HEAD(&p->rcu_tasks_holdout_list);
+#endif /* #ifdef CONFIG_TASKS_RCU */
}
-#else
-
-static inline void rcu_copy_process(struct task_struct *p)
-{
-}
-
-#endif
-
static inline void tsk_restore_flags(struct task_struct *task,
unsigned long orig_flags, unsigned long flags)
{
--
cgit v1.2.1
From bde6c3aa993066acb0d6ce32ecabe03b9d5df92d Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 1 Jul 2014 11:26:57 -0700
Subject: rcu: Provide cond_resched_rcu_qs() to force quiescent states in long
loops
RCU-tasks requires the occasional voluntary context switch
from CPU-bound in-kernel tasks. In some cases, this requires
instrumenting cond_resched(). However, there is some reluctance
to countenance unconditionally instrumenting cond_resched() (see
http://lwn.net/Articles/603252/), so this commit creates a separate
cond_resched_rcu_qs() that may be used in place of cond_resched() in
locations prone to long-duration in-kernel looping.
This commit currently instruments only RCU-tasks. Future possibilities
include also instrumenting RCU, RCU-bh, and RCU-sched in order to reduce
IPI usage.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 3432063f4c87..473350462d04 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -330,6 +330,19 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
#define rcu_note_voluntary_context_switch(t) do { } while (0)
#endif /* #else #ifdef CONFIG_TASKS_RCU */
+/**
+ * cond_resched_rcu_qs - Report potential quiescent states to RCU
+ *
+ * This macro resembles cond_resched(), except that it is defined to
+ * report potential quiescent states to RCU-tasks even if the cond_resched()
+ * machinery were to be shut off, as some advocate for PREEMPT kernels.
+ */
+#define cond_resched_rcu_qs() \
+do { \
+ rcu_note_voluntary_context_switch(current); \
+ cond_resched(); \
+} while (0)
+
#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP)
bool __rcu_is_watching(void);
#endif /* #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP) */
--
cgit v1.2.1
From 53c6d4edf874d3cbc031a53738c6cba9277faea5 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 1 Jul 2014 12:22:23 -0700
Subject: rcu: Add synchronous grace-period waiting for RCU-tasks
It turns out to be easier to add the synchronous grace-period waiting
functions to RCU-tasks than to work around their absense in rcutorture,
so this commit adds them. The key point is that the existence of
call_rcu_tasks() means that rcutorture needs an rcu_barrier_tasks().
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 473350462d04..640152fedcde 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -216,6 +216,8 @@ void synchronize_sched(void);
* memory ordering guarantees.
*/
void call_rcu_tasks(struct rcu_head *head, void (*func)(struct rcu_head *head));
+void synchronize_rcu_tasks(void);
+void rcu_barrier_tasks(void);
#ifdef CONFIG_PREEMPT_RCU
--
cgit v1.2.1
From 3f95aa81d265223fdb13ea2b59883766a05adbdf Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Mon, 4 Aug 2014 06:10:23 -0700
Subject: rcu: Make TASKS_RCU handle tasks that are almost done exiting
Once a task has passed exit_notify() in the do_exit() code path, it
is no longer on the task lists, and is therefore no longer visible
to rcu_tasks_kthread(). This means that an almost-exited task might
be preempted while within a trampoline, and this task won't be waited
on by rcu_tasks_kthread(). This commit fixes this bug by adding an
srcu_struct. An exiting task does srcu_read_lock() just before calling
exit_notify(), and does the corresponding srcu_read_unlock() after
doing the final preempt_disable(). This means that rcu_tasks_kthread()
can do synchronize_srcu() to wait for all mostly-exited tasks to reach
their final preempt_disable() region, and then use synchronize_sched()
to wait for those tasks to finish exiting.
Reported-by: Oleg Nesterov <oleg@redhat.com>
Suggested-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 640152fedcde..54b2ebb20313 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -321,6 +321,8 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
* macro rather than an inline function to avoid #include hell.
*/
#ifdef CONFIG_TASKS_RCU
+#define TASKS_RCU(x) x
+extern struct srcu_struct tasks_rcu_exit_srcu;
#define rcu_note_voluntary_context_switch(t) \
do { \
preempt_disable(); /* Exclude synchronize_sched(); */ \
@@ -329,6 +331,7 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
preempt_enable(); \
} while (0)
#else /* #ifdef CONFIG_TASKS_RCU */
+#define TASKS_RCU(x) do { } while (0)
#define rcu_note_voluntary_context_switch(t) do { } while (0)
#endif /* #else #ifdef CONFIG_TASKS_RCU */
--
cgit v1.2.1
From 69c604557ce34015629b325b85ff1a4996038a3b Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 1 Jul 2014 11:59:36 -0700
Subject: rcutorture: Add torture tests for RCU-tasks
This commit adds torture tests for RCU-tasks. It also fixes a bug that
would segfault for an RCU flavor lacking a callback-barrier function.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
include/linux/rcupdate.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 54b2ebb20313..a3123f53a4ce 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -55,6 +55,7 @@ enum rcutorture_type {
RCU_FLAVOR,
RCU_BH_FLAVOR,
RCU_SCHED_FLAVOR,
+ RCU_TASKS_FLAVOR,
SRCU_FLAVOR,
INVALID_RCU_FLAVOR
};
--
cgit v1.2.1
From 176f8f7a52cc6d09d686f0d900abda6942a52fbb Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Mon, 4 Aug 2014 17:43:50 -0700
Subject: rcu: Make TASKS_RCU handle nohz_full= CPUs
Currently TASKS_RCU would ignore a CPU running a task in nohz_full=
usermode execution. There would be neither a context switch nor a
scheduling-clock interrupt to tell TASKS_RCU that the task in question
had passed through a quiescent state. The grace period would therefore
extend indefinitely. This commit therefore makes RCU's dyntick-idle
subsystem record the task_struct structure of the task that is running
in dyntick-idle mode on each CPU. The TASKS_RCU grace period can
then access this information and record a quiescent state on
behalf of any CPU running in dyntick-idle usermode.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/init_task.h | 3 ++-
include/linux/sched.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index dffd9258ee60..03b274873b06 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -121,7 +121,8 @@ extern struct group_info init_groups;
#define INIT_TASK_RCU_TASKS(tsk) \
.rcu_tasks_holdout = false, \
.rcu_tasks_holdout_list = \
- LIST_HEAD_INIT(tsk.rcu_tasks_holdout_list),
+ LIST_HEAD_INIT(tsk.rcu_tasks_holdout_list), \
+ .rcu_tasks_idle_cpu = -1,
#else
#define INIT_TASK_RCU_TASKS(tsk)
#endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index eaacac4ae77d..ec8b34722bcc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1274,6 +1274,7 @@ struct task_struct {
unsigned long rcu_tasks_nvcsw;
bool rcu_tasks_holdout;
struct list_head rcu_tasks_holdout_list;
+ int rcu_tasks_idle_cpu;
#endif /* #ifdef CONFIG_TASKS_RCU */
#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
@@ -2020,6 +2021,7 @@ static inline void rcu_copy_process(struct task_struct *p)
#ifdef CONFIG_TASKS_RCU
p->rcu_tasks_holdout = false;
INIT_LIST_HEAD(&p->rcu_tasks_holdout_list);
+ p->rcu_tasks_idle_cpu = -1;
#endif /* #ifdef CONFIG_TASKS_RCU */
}
--
cgit v1.2.1
From 01a81330344b09028881c953a51d1106a9e63518 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 5 Aug 2014 05:23:35 -0700
Subject: rcu: Remove redundant preempt_disable() from
rcu_note_voluntary_context_switch()
In theory, synchronize_sched() requires a read-side critical section
to order against. In practice, preemption can be thought of as
being disabled across every machine instruction, at least for those
machine instructions that are not in the idle loop and not on offline
CPUs. So this commit removes the redundant preempt_disable() from
rcu_note_voluntary_context_switch().
Please note that the single instruction in question is the store of
zero to ->rcu_tasks_holdout. The "if" is simply a performance optimization
that avoids unnecessary stores. To see this, keep in mind that both
the "if" condition and the store are in a quiescent state. Therefore,
even if the task is preempted for a full grace period (presumably due
to its having done a context switch beforehand), the store will be
recording a legitimate quiescent state.
Reported-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Conflicts:
include/linux/rcupdate.h
---
include/linux/rcupdate.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a3123f53a4ce..132e1e34cdca 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -326,10 +326,8 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
extern struct srcu_struct tasks_rcu_exit_srcu;
#define rcu_note_voluntary_context_switch(t) \
do { \
- preempt_disable(); /* Exclude synchronize_sched(); */ \
if (ACCESS_ONCE((t)->rcu_tasks_holdout)) \
ACCESS_ONCE((t)->rcu_tasks_holdout) = false; \
- preempt_enable(); \
} while (0)
#else /* #ifdef CONFIG_TASKS_RCU */
#define TASKS_RCU(x) do { } while (0)
--
cgit v1.2.1
From 1d082fd061884a587c490c4fc8a2056ce1e47624 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 14 Aug 2014 16:01:53 -0700
Subject: rcu: Remove local_irq_disable() in rcu_preempt_note_context_switch()
The rcu_preempt_note_context_switch() function is on a scheduling fast
path, so it would be good to avoid disabling irqs. The reason that irqs
are disabled is to synchronize process-level and irq-handler access to
the task_struct ->rcu_read_unlock_special bitmask. This commit therefore
makes ->rcu_read_unlock_special instead be a union of bools with a short
allowing single-access checks in RCU's __rcu_read_unlock(). This results
in the process-level and irq-handler accesses being simple loads and
stores, so that irqs need no longer be disabled. This commit therefore
removes the irq disabling from rcu_preempt_note_context_switch().
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/init_task.h | 2 +-
include/linux/sched.h | 16 +++++++++-------
2 files changed, 10 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 03b274873b06..77fc43f8fb72 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -111,7 +111,7 @@ extern struct group_info init_groups;
#ifdef CONFIG_PREEMPT_RCU
#define INIT_TASK_RCU_PREEMPT(tsk) \
.rcu_read_lock_nesting = 0, \
- .rcu_read_unlock_special = 0, \
+ .rcu_read_unlock_special.s = 0, \
.rcu_node_entry = LIST_HEAD_INIT(tsk.rcu_node_entry), \
INIT_TASK_RCU_TREE_PREEMPT()
#else
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ec8b34722bcc..42888d715fb1 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1212,6 +1212,13 @@ struct sched_dl_entity {
struct hrtimer dl_timer;
};
+union rcu_special {
+ struct {
+ bool blocked;
+ bool need_qs;
+ } b;
+ short s;
+};
struct rcu_node;
enum perf_event_task_context {
@@ -1264,7 +1271,7 @@ struct task_struct {
#ifdef CONFIG_PREEMPT_RCU
int rcu_read_lock_nesting;
- char rcu_read_unlock_special;
+ union rcu_special rcu_read_unlock_special;
struct list_head rcu_node_entry;
#endif /* #ifdef CONFIG_PREEMPT_RCU */
#ifdef CONFIG_TREE_PREEMPT_RCU
@@ -2005,16 +2012,11 @@ extern void task_clear_jobctl_trapping(struct task_struct *task);
extern void task_clear_jobctl_pending(struct task_struct *task,
unsigned int mask);
-#ifdef CONFIG_PREEMPT_RCU
-#define RCU_READ_UNLOCK_BLOCKED (1 << 0) /* blocked while in RCU read-side. */
-#define RCU_READ_UNLOCK_NEED_QS (1 << 1) /* RCU core needs CPU response. */
-#endif /* #ifdef CONFIG_PREEMPT_RCU */
-
static inline void rcu_copy_process(struct task_struct *p)
{
#ifdef CONFIG_PREEMPT_RCU
p->rcu_read_lock_nesting = 0;
- p->rcu_read_unlock_special = 0;
+ p->rcu_read_unlock_special.s = 0;
p->rcu_blocked_node = NULL;
INIT_LIST_HEAD(&p->rcu_node_entry);
#endif /* #ifdef CONFIG_PREEMPT_RCU */
--
cgit v1.2.1
From 284a8c93af47306beed967a303d84730b32bab39 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 14 Aug 2014 16:38:46 -0700
Subject: rcu: Per-CPU operation cleanups to rcu_*_qs() functions
The rcu_bh_qs(), rcu_preempt_qs(), and rcu_sched_qs() functions use
old-style per-CPU variable access and write to ->passed_quiesce even
if it is already set. This commit therefore updates to use the new-style
per-CPU variable access functions and avoids the spurious writes.
This commit also eliminates the "cpu" argument to these functions because
they are always invoked on the indicated CPU.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 4 ++--
include/linux/rcutiny.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 132e1e34cdca..2fab0e37afe0 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -261,8 +261,8 @@ static inline int rcu_preempt_depth(void)
/* Internal to kernel */
void rcu_init(void);
-void rcu_sched_qs(int cpu);
-void rcu_bh_qs(int cpu);
+void rcu_sched_qs(void);
+void rcu_bh_qs(void);
void rcu_check_callbacks(int cpu, int user);
struct notifier_block;
void rcu_idle_enter(void);
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index d40a6a451330..38cc5b1e252d 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -80,7 +80,7 @@ static inline void kfree_call_rcu(struct rcu_head *head,
static inline void rcu_note_context_switch(int cpu)
{
- rcu_sched_qs(cpu);
+ rcu_sched_qs();
}
/*
--
cgit v1.2.1
From 908c7f1949cb7cc6e92ba8f18f2998e87e265b8e Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 8 Sep 2014 09:51:29 +0900
Subject: percpu_counter: add @gfp to percpu_counter_init()
Percpu allocator now supports allocation mask. Add @gfp to
percpu_counter_init() so that !GFP_KERNEL allocation masks can be used
with percpu_counters too.
We could have left percpu_counter_init() alone and added
percpu_counter_init_gfp(); however, the number of users isn't that
high and introducing _gfp variants to all percpu data structures would
be quite ugly, so let's just do the conversion. This is the one with
the most users. Other percpu data structures are a lot easier to
convert.
This patch doesn't make any functional difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: "David S. Miller" <davem@davemloft.net>
Cc: x86@kernel.org
Cc: Jens Axboe <axboe@kernel.dk>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/percpu_counter.h | 10 ++++++----
include/net/dst_ops.h | 2 +-
include/net/inet_frag.h | 2 +-
3 files changed, 8 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index d5dd4657c8d6..50e50095c8d1 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -12,6 +12,7 @@
#include <linux/threads.h>
#include <linux/percpu.h>
#include <linux/types.h>
+#include <linux/gfp.h>
#ifdef CONFIG_SMP
@@ -26,14 +27,14 @@ struct percpu_counter {
extern int percpu_counter_batch;
-int __percpu_counter_init(struct percpu_counter *fbc, s64 amount,
+int __percpu_counter_init(struct percpu_counter *fbc, s64 amount, gfp_t gfp,
struct lock_class_key *key);
-#define percpu_counter_init(fbc, value) \
+#define percpu_counter_init(fbc, value, gfp) \
({ \
static struct lock_class_key __key; \
\
- __percpu_counter_init(fbc, value, &__key); \
+ __percpu_counter_init(fbc, value, gfp, &__key); \
})
void percpu_counter_destroy(struct percpu_counter *fbc);
@@ -89,7 +90,8 @@ struct percpu_counter {
s64 count;
};
-static inline int percpu_counter_init(struct percpu_counter *fbc, s64 amount)
+static inline int percpu_counter_init(struct percpu_counter *fbc, s64 amount,
+ gfp_t gfp)
{
fbc->count = amount;
return 0;
diff --git a/include/net/dst_ops.h b/include/net/dst_ops.h
index 2f26dfb8450e..1f99a1de0e4f 100644
--- a/include/net/dst_ops.h
+++ b/include/net/dst_ops.h
@@ -63,7 +63,7 @@ static inline void dst_entries_add(struct dst_ops *dst, int val)
static inline int dst_entries_init(struct dst_ops *dst)
{
- return percpu_counter_init(&dst->pcpuc_entries, 0);
+ return percpu_counter_init(&dst->pcpuc_entries, 0, GFP_KERNEL);
}
static inline void dst_entries_destroy(struct dst_ops *dst)
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index 65a8855e99fe..8d1765577acc 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -151,7 +151,7 @@ static inline void add_frag_mem_limit(struct inet_frag_queue *q, int i)
static inline void init_frag_mem_limit(struct netns_frags *nf)
{
- percpu_counter_init(&nf->mem, 0);
+ percpu_counter_init(&nf->mem, 0, GFP_KERNEL);
}
static inline unsigned int sum_frag_mem_limit(struct netns_frags *nf)
--
cgit v1.2.1
From 20ae00792c6f1f18fc4fc5965445a145df92827e Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 8 Sep 2014 09:51:30 +0900
Subject: proportions: add @gfp to init functions
Percpu allocator now supports allocation mask. Add @gfp to
[flex_]proportions init functions so that !GFP_KERNEL allocation masks
can be used with them too.
This patch doesn't make any functional difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
---
include/linux/flex_proportions.h | 5 +++--
include/linux/proportions.h | 5 +++--
2 files changed, 6 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/flex_proportions.h b/include/linux/flex_proportions.h
index 4ebc49fae391..0d348e011a6e 100644
--- a/include/linux/flex_proportions.h
+++ b/include/linux/flex_proportions.h
@@ -10,6 +10,7 @@
#include <linux/percpu_counter.h>
#include <linux/spinlock.h>
#include <linux/seqlock.h>
+#include <linux/gfp.h>
/*
* When maximum proportion of some event type is specified, this is the
@@ -32,7 +33,7 @@ struct fprop_global {
seqcount_t sequence;
};
-int fprop_global_init(struct fprop_global *p);
+int fprop_global_init(struct fprop_global *p, gfp_t gfp);
void fprop_global_destroy(struct fprop_global *p);
bool fprop_new_period(struct fprop_global *p, int periods);
@@ -79,7 +80,7 @@ struct fprop_local_percpu {
raw_spinlock_t lock; /* Protect period and numerator */
};
-int fprop_local_init_percpu(struct fprop_local_percpu *pl);
+int fprop_local_init_percpu(struct fprop_local_percpu *pl, gfp_t gfp);
void fprop_local_destroy_percpu(struct fprop_local_percpu *pl);
void __fprop_inc_percpu(struct fprop_global *p, struct fprop_local_percpu *pl);
void __fprop_inc_percpu_max(struct fprop_global *p, struct fprop_local_percpu *pl,
diff --git a/include/linux/proportions.h b/include/linux/proportions.h
index 26a8a4ed9b07..00e8e8fa7358 100644
--- a/include/linux/proportions.h
+++ b/include/linux/proportions.h
@@ -12,6 +12,7 @@
#include <linux/percpu_counter.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
+#include <linux/gfp.h>
struct prop_global {
/*
@@ -40,7 +41,7 @@ struct prop_descriptor {
struct mutex mutex; /* serialize the prop_global switch */
};
-int prop_descriptor_init(struct prop_descriptor *pd, int shift);
+int prop_descriptor_init(struct prop_descriptor *pd, int shift, gfp_t gfp);
void prop_change_shift(struct prop_descriptor *pd, int new_shift);
/*
@@ -61,7 +62,7 @@ struct prop_local_percpu {
raw_spinlock_t lock; /* protect the snapshot state */
};
-int prop_local_init_percpu(struct prop_local_percpu *pl);
+int prop_local_init_percpu(struct prop_local_percpu *pl, gfp_t gfp);
void prop_local_destroy_percpu(struct prop_local_percpu *pl);
void __prop_inc_percpu(struct prop_descriptor *pd, struct prop_local_percpu *pl);
void prop_fraction_percpu(struct prop_descriptor *pd, struct prop_local_percpu *pl,
--
cgit v1.2.1
From a34375ef9e65340a138fc0be287de5c940d260fc Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 8 Sep 2014 09:51:30 +0900
Subject: percpu-refcount: add @gfp to percpu_ref_init()
Percpu allocator now supports allocation mask. Add @gfp to
percpu_ref_init() so that !GFP_KERNEL allocation masks can be used
with percpu_refs too.
This patch doesn't make any functional difference.
v2: blk-mq conversion was missing. Updated.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kent Overstreet <koverstreet@google.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Nicholas A. Bellinger <nab@linux-iscsi.org>
Cc: Jens Axboe <axboe@kernel.dk>
---
include/linux/percpu-refcount.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 3dfbf237cd8f..ee8325122dbd 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -49,6 +49,7 @@
#include <linux/kernel.h>
#include <linux/percpu.h>
#include <linux/rcupdate.h>
+#include <linux/gfp.h>
struct percpu_ref;
typedef void (percpu_ref_func_t)(struct percpu_ref *);
@@ -66,7 +67,7 @@ struct percpu_ref {
};
int __must_check percpu_ref_init(struct percpu_ref *ref,
- percpu_ref_func_t *release);
+ percpu_ref_func_t *release, gfp_t gfp);
void percpu_ref_reinit(struct percpu_ref *ref);
void percpu_ref_exit(struct percpu_ref *ref);
void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
--
cgit v1.2.1
From e78c3496790ee8a36522a838b59b388e8a709e65 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Sat, 16 Aug 2014 13:40:10 -0400
Subject: time, signal: Protect resource use statistics with seqlock
Both times() and clock_gettime(CLOCK_PROCESS_CPUTIME_ID) have scalability
issues on large systems, due to both functions being serialized with a
lock.
The lock protects against reporting a wrong value, due to a thread in the
task group exiting, its statistics reporting up to the signal struct, and
that exited task's statistics being counted twice (or not at all).
Protecting that with a lock results in times() and clock_gettime() being
completely serialized on large systems.
This can be fixed by using a seqlock around the events that gather and
propagate statistics. As an additional benefit, the protection code can
be moved into thread_group_cputime(), slightly simplifying the calling
functions.
In the case of posix_cpu_clock_get_task() things can be simplified a
lot, because the calling function already ensures that the task sticks
around, and the rest is now taken care of in thread_group_cputime().
This way the statistics reporting code can run lockless.
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alex Thorlton <athorlton@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Daeseok Youn <daeseok.youn@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guillaume Morin <guillaume@morinfr.org>
Cc: Ionut Alexa <ionut.m.alexa@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michal Schmidt <mschmidt@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: umgwanakikbuti@gmail.com
Cc: fweisbec@gmail.com
Cc: srao@redhat.com
Cc: lwoodman@redhat.com
Cc: atheurer@redhat.com
Link: http://lkml.kernel.org/r/20140816134010.26a9b572@annuminas.surriel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5c2c885ee52b..dd9eb4807389 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -645,6 +645,7 @@ struct signal_struct {
* Live threads maintain their own counters and add to these
* in __exit_signal, except for the group leader.
*/
+ seqlock_t stats_lock;
cputime_t utime, stime, cutime, cstime;
cputime_t gtime;
cputime_t cgtime;
--
cgit v1.2.1
From 0b750b3baa2d64f1b77aecc10f20deeb28efe60d Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 5 Sep 2014 18:08:47 +0200
Subject: HID: usbhid: add always-poll quirk
Add quirk to make sure that a device is always polled for input events
even if it hasn't been opened.
This is needed for devices that disconnects from the bus unless the
interrupt endpoint has been polled at least once or when not responding
to an input event (e.g. after having shut down X).
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/hid.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/hid.h b/include/linux/hid.h
index f53c4a9cca1d..26ee25fced27 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -287,6 +287,7 @@ struct hid_item {
#define HID_QUIRK_HIDINPUT_FORCE 0x00000080
#define HID_QUIRK_NO_EMPTY_INPUT 0x00000100
#define HID_QUIRK_NO_INIT_INPUT_REPORTS 0x00000200
+#define HID_QUIRK_ALWAYS_POLL 0x00000400
#define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00010000
#define HID_QUIRK_SKIP_OUTPUT_REPORT_ID 0x00020000
#define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP 0x00040000
--
cgit v1.2.1
From c8d6591752e96c550cb98b781326d72d8eedcc79 Mon Sep 17 00:00:00 2001
From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
Date: Wed, 3 Sep 2014 06:48:37 -0700
Subject: mac80211: support DTPC IE (from Cisco Client eXtensions)
Linux already supports 802.11h, where the access point can tell the
client to reduce its transmission power. However, 802.11h is only
defined for 5 GHz, where the need for this is much smaller than on
2.4 GHz.
Cisco has their own solution, called DTPC (Dynamic Transmit Power
Control). Cisco APs on a controller sometimes but not always send
802.11h; they always send DTPC, even on 2.4 GHz. This patch adds support
for parsing and honoring the DTPC IE in addition to the 802.11h
element (they do not always contain the same limits, so both must
be honored); the format is not documented, but very simple.
Tested (on top of wireless.git and on 3.16.1) against a Cisco Aironet
1142 joined to a Cisco 2504 WLC, by setting various transmit power
levels for the given access points and observing the results.
The Wireshark 802.11 dissector agrees with the interpretation of the
element, except for negative numbers, which seem to never happen
anyway.
Signed-off-by: Steinar H. Gunderson <sgunderson@bigfoot.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
---
include/linux/ieee80211.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 77d4f26e0235..61a09f0644aa 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1824,7 +1824,8 @@ enum ieee80211_eid {
WLAN_EID_DMG_TSPEC = 146,
WLAN_EID_DMG_AT = 147,
WLAN_EID_DMG_CAP = 148,
- /* 149-150 reserved for Cisco */
+ /* 149 reserved for Cisco */
+ WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
WLAN_EID_DMG_OPERATION = 151,
WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
WLAN_EID_DMG_BEAM_REFINEMENT = 153,
--
cgit v1.2.1
From 4930d247af29f849cd1bddd65be2400684dc886e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABl=20PORTAY?= <gael.portay@gmail.com>
Date: Sat, 6 Sep 2014 19:52:35 +0200
Subject: ARM: at91/tclib: move initialization from alloc to probe
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Move resource retrieval from atmel_tc_alloc to tc_probe to avoid lately
reporting resource related issues when a TC block user request a TC block.
Moreover, resources retrieval are usually done in the probe function,
thus moving them add some consistency with other drivers.
Initialization is done once, ie not every time a tc block is requested.
If it fails, the device is not appended to the list of tc blocks.
Furhermore, the device id is retrieved at probe as well, avoiding parsing
DT every time the user requests of tc block.
Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
include/linux/atmel_tc.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/atmel_tc.h b/include/linux/atmel_tc.h
index 89a931babecf..d8aa88461c64 100644
--- a/include/linux/atmel_tc.h
+++ b/include/linux/atmel_tc.h
@@ -44,12 +44,13 @@ struct atmel_tcb_config {
/**
* struct atmel_tc - information about a Timer/Counter Block
* @pdev: physical device
- * @iomem: resource associated with the I/O register
* @regs: mapping through which the I/O registers can be accessed
+ * @id: block id
* @tcb_config: configuration data from SoC
* @irq: irq for each of the three channels
* @clk: internal clock source for each of the three channels
* @node: list node, for tclib internal use
+ * @allocated: if already used, for tclib internal use
*
* On some platforms, each TC channel has its own clocks and IRQs,
* while on others, all TC channels share the same clock and IRQ.
@@ -61,15 +62,16 @@ struct atmel_tcb_config {
*/
struct atmel_tc {
struct platform_device *pdev;
- struct resource *iomem;
void __iomem *regs;
+ int id;
const struct atmel_tcb_config *tcb_config;
int irq[3];
struct clk *clk[3];
struct list_head node;
+ bool allocated;
};
-extern struct atmel_tc *atmel_tc_alloc(unsigned block, const char *name);
+extern struct atmel_tc *atmel_tc_alloc(unsigned block);
extern void atmel_tc_free(struct atmel_tc *tc);
/* platform-specific ATMEL_TC_TIMER_CLOCKx divisors (0 means 32KiHz) */
--
cgit v1.2.1
From 84f462371cc07272a17e2ae96c3540f795db273a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABl=20PORTAY?= <gael.portay@gmail.com>
Date: Sat, 6 Sep 2014 19:52:36 +0200
Subject: ARM: at91/tclib: mask interruptions at shutdown and probe
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Shutdown properly the timer counter block by masking interruptions. Otherwise,
a segmentation may happen when kexec-ing a new kernel (see backtrace below).
An interruption may happen before the handler is set, leading to a kernel
segmentation fault.
Furthermore, we make sure the interruptions are masked when the driver is
initialized. This will prevent freshly kexec-ed kernel from crashing when
launched from a kernel which does not properly mask interruptions at shutdown.
The backtrace below happened after kexec-ing a new kernel, from a kernel
that did not shut down properly leaving interruptions unmasked.
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 80000005 [#1] ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Not tainted 3.16.0+ #144
task: c1828aa0 ti: c182a000 task.ti: c182a000
PC is at 0x0
LR is at ch2_irq+0x28/0x30
pc : [<00000000>] lr : [<c01db904>] psr: 000000d3
sp : c182bd38 ip : c182bd48 fp : c182bd44
r10: c0373390 r9 : c1825b00 r8 : 60000053
r7 : 00000000 r6 : 00000000 r5 : 00000013 r4 : c036e800
r3 : 00000000 r2 : 00002004 r1 : c036e760 r0 : c036e760
Flags: nzcv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel
Control: 0005317f Table: 20004000 DAC: 00000017
Process swapper (pid: 1, stack limit = 0xc182a1c0)
Stack: (0xc182bd38 to 0xc182c000)
bd20: c182bd7c c182bd48
bd40: c0045430 c01db8ec 00000000 c18c6f40 c182bd74 c1825b00 c035cec4 00000000
bd60: c182be2c 60000053 c1825b34 00000000 c182bd94 c182bd80 c0045570 c0045408
bd80: 00000000 c1825b00 c182bdac c182bd98 c0047f34 c0045550 00000013 c036619c
bda0: c182bdc4 c182bdb0 c0044da4 c0047e98 0000007f 00000013 c182bde4 c182bdc8
bdc0: c0009e34 c0044d8c fefff000 c0046728 60000053 ffffffff c182bdf4 c182bde8
bde0: c00086a8 c0009ddc c182be74 c182bdf8 c000cb80 c0008674 00000000 00000013
be00: 00000000 00014200 c1825b00 c036e800 00000013 c035ed98 60000053 c1825b34
be20: 00000000 c182be74 c182be20 c182be40 c0047994 c0046728 60000053 ffffffff
be40: 00000013 c036e800 c182be64 c1825b00 00000013 c036e800 c035ed98 c03874bc
be60: 00000004 c036e700 c182be94 c182be78 c004689c c0046398 c036e760 c18c6080
be80: 00000000 c035ed10 c182bedc c182be98 c0348b08 c004684c 0000000c c034dac8
bea0: 004c4b3f c028c338 c036e760 00000013 c014ecc8 c18e67e0 c035b9c0 c0348884
bec0: c035b9c0 c182a020 00000000 00000000 c182bf54 c182bee0 c00089fc c0348894
bee0: c00da51c c1ffcc78 c182bf0c c182bef8 c002d100 c002d09c c1ffcc78 00000000
bf00: c182bf54 c182bf10 c002d308 c0336570 c182bf3c c0334e44 00000003 00000003
bf20: 00000030 c0334b44 c0044d74 00000003 00000003 c034dac8 c0350a94 c0373440
bf40: c0373440 00000030 c182bf94 c182bf58 c0336d24 c000890c 00000003 00000003
bf60: c0336560 c182bf64 c182bf64 6e616e0d 00000000 c0272fc8 00000000 00000000
bf80: 00000000 00000000 c182bfac c182bf98 c0272fd8 c0336bd8 c182a000 00000000
bfa0: 00000000 c182bfb0 c00095d0 c0272fd8 00000000 00000000 00000000 00000000
bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 374d27cd 33cc33e4
Backtrace:
[<c01db8dc>] (ch2_irq) from [<c0045430>] (handle_irq_event_percpu+0x38/0x148)
[<c00453f8>] (handle_irq_event_percpu) from [<c0045570>] (handle_irq_event+0x30/0x40)
r10:00000000 r9:c1825b34 r8:60000053 r7:c182be2c r6:00000000 r5:c035cec4
r4:c1825b00
[<c0045540>] (handle_irq_event) from [<c0047f34>] (handle_fasteoi_irq+0xac/0x11c)
r4:c1825b00 r3:00000000
[<c0047e88>] (handle_fasteoi_irq) from [<c0044da4>] (generic_handle_irq+0x28/0x38)
r5:c036619c r4:00000013
[<c0044d7c>] (generic_handle_irq) from [<c0009e34>] (handle_IRQ+0x68/0x88)
r4:00000013 r3:0000007f
[<c0009dcc>] (handle_IRQ) from [<c00086a8>] (at91_aic_handle_irq+0x44/0x4c)
r6:ffffffff r5:60000053 r4:c0046728 r3:fefff000
[<c0008664>] (at91_aic_handle_irq) from [<c000cb80>] (__irq_svc+0x40/0x4c)
Exception stack(0xc182bdf8 to 0xc182be40)
bde0: 00000000 00000013
be00: 00000000 00014200 c1825b00 c036e800 00000013 c035ed98 60000053 c1825b34
be20: 00000000 c182be74 c182be20 c182be40 c0047994 c0046728 60000053 ffffffff
[<c0046388>] (__setup_irq) from [<c004689c>] (setup_irq+0x60/0x8c)
r10:c036e700 r9:00000004 r8:c03874bc r7:c035ed98 r6:c036e800 r5:00000013
r4:c1825b00
[<c004683c>] (setup_irq) from [<c0348b08>] (tcb_clksrc_init+0x284/0x31c)
r6:c035ed10 r5:00000000 r4:c18c6080 r3:c036e760
[<c0348884>] (tcb_clksrc_init) from [<c00089fc>] (do_one_initcall+0x100/0x1b4)
r10:00000000 r9:00000000 r8:c182a020 r7:c035b9c0 r6:c0348884 r5:c035b9c0
r4:c18e67e0
[<c00088fc>] (do_one_initcall) from [<c0336d24>] (kernel_init_freeable+0x15c/0x224)
r9:00000030 r8:c0373440 r7:c0373440 r6:c0350a94 r5:c034dac8 r4:00000003
[<c0336bc8>] (kernel_init_freeable) from [<c0272fd8>] (kernel_init+0x10/0xec)
r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0272fc8 r4:00000000
[<c0272fc8>] (kernel_init) from [<c00095d0>] (ret_from_fork+0x14/0x24)
r4:00000000 r3:c182a000
Code: bad PC value
---[ end trace 5b30f0017e282e47 ]---
Kernel panic - not syncing: Fatal exception in interrupt
Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
include/linux/atmel_tc.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/atmel_tc.h b/include/linux/atmel_tc.h
index d8aa88461c64..b87c1c7c242a 100644
--- a/include/linux/atmel_tc.h
+++ b/include/linux/atmel_tc.h
@@ -260,5 +260,10 @@ extern const u8 atmel_tc_divisors[5];
#define ATMEL_TC_LDRAS (1 << 5) /* RA loading */
#define ATMEL_TC_LDRBS (1 << 6) /* RB loading */
#define ATMEL_TC_ETRGS (1 << 7) /* external trigger */
+#define ATMEL_TC_ALL_IRQ (ATMEL_TC_COVFS | ATMEL_TC_LOVRS | \
+ ATMEL_TC_CPAS | ATMEL_TC_CPBS | \
+ ATMEL_TC_CPCS | ATMEL_TC_LDRAS | \
+ ATMEL_TC_LDRBS | ATMEL_TC_ETRGS) \
+ /* all IRQs */
#endif
--
cgit v1.2.1
From d4288d3fac18bbc31cb6d369679b1fa1d9321ae9 Mon Sep 17 00:00:00 2001
From: Jurgen Kramer <gtmkramer@xs4all.nl>
Date: Fri, 5 Sep 2014 10:47:56 +0200
Subject: ALSA: pcm: add new DSD sampleformat for native DSD playback on XMOS
based devices
XMOS based USB DACs with native DSD support expose this feature via a USB
alternate setting. The audio format is either 32-bit raw or a 32-bit PCM format.
To utilize this feature on linux this patch introduces a new 32-bit DSD
sampleformat DSD_U32_LE.
A follow up patch will add a quirk for XMOS based devices to utilize the new format.
Further patches will add support to alsa-lib.
Signed-off-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 1 +
include/uapi/sound/asound.h | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 67e0bdb9f0fa..e862497f7556 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -183,6 +183,7 @@ struct snd_pcm_ops {
#define SNDRV_PCM_FMTBIT_G723_40_1B _SNDRV_PCM_FMTBIT(G723_40_1B)
#define SNDRV_PCM_FMTBIT_DSD_U8 _SNDRV_PCM_FMTBIT(DSD_U8)
#define SNDRV_PCM_FMTBIT_DSD_U16_LE _SNDRV_PCM_FMTBIT(DSD_U16_LE)
+#define SNDRV_PCM_FMTBIT_DSD_U32_LE _SNDRV_PCM_FMTBIT(DSD_U32_LE)
#ifdef SNDRV_LITTLE_ENDIAN
#define SNDRV_PCM_FMTBIT_S16 SNDRV_PCM_FMTBIT_S16_LE
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index 32168f7ffce3..6ee586728df9 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -219,7 +219,8 @@ typedef int __bitwise snd_pcm_format_t;
#define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */
#define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
#define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
-#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U16_LE
+#define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
+#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_LE
#ifdef SNDRV_LITTLE_ENDIAN
#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
--
cgit v1.2.1
From ff9ea323816dc1c8ac7144afd4eab3ac97704430 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 8 Sep 2014 08:03:56 +0900
Subject: block, bdi: an active gendisk always has a request_queue associated
with it
bdev_get_queue() returns the request_queue associated with the
specified block_device. blk_get_backing_dev_info() makes use of
bdev_get_queue() to determine the associated bdi given a block_device.
All the callers of bdev_get_queue() including
blk_get_backing_dev_info() assume that bdev_get_queue() may return
NULL and implement NULL handling; however, bdev_get_queue() requires
the passed in block_device is opened and attached to its gendisk.
Because an active gendisk always has a valid request_queue associated
with it, bdev_get_queue() can never return NULL and neither can
blk_get_backing_dev_info().
Make it clear that neither of the two functions can return NULL and
remove NULL handling from all the callers.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Chris Mason <clm@fb.com>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 518b46555b80..e267bf0db559 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -865,7 +865,7 @@ extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *,
static inline struct request_queue *bdev_get_queue(struct block_device *bdev)
{
- return bdev->bd_disk->queue;
+ return bdev->bd_disk->queue; /* this is never NULL */
}
/*
--
cgit v1.2.1
From e36f1dfce0b45d347927568efe1088821758cc3c Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 8 Sep 2014 08:03:57 +0900
Subject: bdi: remove unused stuff
Two flags and one bdi_writeback field are no longer used. Remove
them.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/backing-dev.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index e488e9459a93..2103a7fa3fd8 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -28,12 +28,10 @@ struct dentry;
* Bits in backing_dev_info.state
*/
enum bdi_state {
- BDI_wb_alloc, /* Default embedded wb allocated */
BDI_async_congested, /* The async (write) queue is getting full */
BDI_sync_congested, /* The sync queue is getting full */
BDI_registered, /* bdi_register() was done */
BDI_writeback_running, /* Writeback is in progress */
- BDI_unused, /* Available bits start here */
};
typedef int (congested_fn)(void *, int);
@@ -50,7 +48,6 @@ enum bdi_stat_item {
struct bdi_writeback {
struct backing_dev_info *bdi; /* our parent bdi */
- unsigned int nr;
unsigned long last_old_flush; /* last old data flush */
--
cgit v1.2.1
From 018a17bdc8658ad448497c84d4ba21b6985820ec Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 8 Sep 2014 08:04:01 +0900
Subject: bdi: reimplement bdev_inode_switch_bdi()
A block_device may be attached to different gendisks and thus
different bdis over time. bdev_inode_switch_bdi() is used to switch
the associated bdi. The function assumes that the inode could be
dirty and transfers it between bdis if so. This is a bit nasty in
that it reaches into bdi internals.
This patch reimplements the function so that it writes out the inode
if dirty. This is a lot simpler and can be implemented without
exposing bdi internals.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/backing-dev.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 2103a7fa3fd8..5da6012b7a14 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -121,7 +121,6 @@ void bdi_start_background_writeback(struct backing_dev_info *bdi);
void bdi_writeback_workfn(struct work_struct *work);
int bdi_has_dirty_io(struct backing_dev_info *bdi);
void bdi_wakeup_thread_delayed(struct backing_dev_info *bdi);
-void bdi_lock_two(struct bdi_writeback *wb1, struct bdi_writeback *wb2);
extern spinlock_t bdi_lock;
extern struct list_head bdi_list;
--
cgit v1.2.1
From c16900cf285ca240f0f84117bf8b88a03c55469b Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 15 Aug 2014 21:17:06 +0300
Subject: Bluetooth: Fix hci_conn reference counting for fixed channels
Now that SMP has been converted to use fixed channels we've got a bit of
a problem with the hci_conn reference counting. So far the L2CAP code
has kept a reference for each L2CAP channel that was notified of the
connection. With SMP however this would mean that the connection is
never dropped even though there are no other users of it. Furthermore,
SMP already does its own hci_conn reference counting internally,
starting from a security or pairing request and ending with the key
distribution.
This patch makes L2CAP fixed channels default to the L2CAP core not
keeping a hci_conn reference for them. A new FLAG_HOLD_HCI_CONN flag is
added so that L2CAP users can declare an exception to this rule and hold
a reference even for their fixed channels. One such exception is the
L2CAP socket layer which does want a reference for each socket (e.g. an
ATT socket which uses a fixed channel).
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index cedda399f9c0..1558eccb19db 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -711,6 +711,7 @@ enum {
FLAG_DEFER_SETUP,
FLAG_LE_CONN_REQ_SENT,
FLAG_PENDING_SECURITY,
+ FLAG_HOLD_HCI_CONN,
};
enum {
--
cgit v1.2.1
From 51bb8457ddfa74ede52bf8c02054dea831d59fff Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 15 Aug 2014 21:06:57 +0300
Subject: Bluetooth: Improve *_get() functions to return the object type
It's natural to have *_get() functions that increment the reference
count of an object to return the object type itself. This way it's
simple to make a copy of the object pointer and increase the reference
count in a single step. This patch updates two such get() functions,
namely hci_conn_get() and l2cap_conn_get(), and updates the users to
take advantage of the new API.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 3 ++-
include/net/bluetooth/l2cap.h | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b0ded1333865..aa75eee8ad7f 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -756,9 +756,10 @@ void hci_le_conn_failed(struct hci_conn *conn, u8 status);
* _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
*/
-static inline void hci_conn_get(struct hci_conn *conn)
+static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
{
get_device(&conn->dev);
+ return conn;
}
static inline void hci_conn_put(struct hci_conn *conn)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 1558eccb19db..8f1652ed3326 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -948,7 +948,7 @@ void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
void __l2cap_physical_cfm(struct l2cap_chan *chan, int result);
void l2cap_conn_shutdown(struct l2cap_conn *conn, int err);
-void l2cap_conn_get(struct l2cap_conn *conn);
+struct l2cap_conn *l2cap_conn_get(struct l2cap_conn *conn);
void l2cap_conn_put(struct l2cap_conn *conn);
int l2cap_register_user(struct l2cap_conn *conn, struct l2cap_user *user);
--
cgit v1.2.1
From eb78d7e53d144995b9e023b151de19fa40af72f3 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 18 Aug 2014 00:41:41 +0300
Subject: Bluetooth: Use zero timeout for immediate scheduling
There's no point in passing a "small" timeout to queue_delayed_work() to
try to get the callback faster scheduled. Passing 0 is perfectly valid
and will cause a shortcut to a direct queue_work().
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index aa75eee8ad7f..18c24f6fce6c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -791,7 +791,7 @@ static inline void hci_conn_drop(struct hci_conn *conn)
if (!conn->out)
timeo *= 2;
} else {
- timeo = msecs_to_jiffies(10);
+ timeo = 0;
}
break;
@@ -800,7 +800,7 @@ static inline void hci_conn_drop(struct hci_conn *conn)
break;
default:
- timeo = msecs_to_jiffies(10);
+ timeo = 0;
break;
}
--
cgit v1.2.1
From f94b665dcf15324f5ac8aa639e47be0829b6409d Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 18 Aug 2014 00:41:44 +0300
Subject: Bluetooth: Ignore incoming data after initiating disconnection
When hci_chan_del is called the disconnection routines get scheduled
through a workqueue. If there's any incoming ACL data before the
routines get executed there's a chance that a new hci_chan is created
and the disconnection never happens. This patch adds a new hci_conn flag
to indicate that we're in the process of driving the connection down. We
set the flag in hci_chan_del and check for it in hci_chan_create so that
no new channels are created for the same connection.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 18c24f6fce6c..dbe73642c54c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -553,6 +553,7 @@ enum {
HCI_CONN_FIPS,
HCI_CONN_STK_ENCRYPT,
HCI_CONN_AUTH_INITIATOR,
+ HCI_CONN_DROP,
};
static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
--
cgit v1.2.1
From b04afa0c280b7e7ced88692251d75a78c8fcb2a7 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 18 Aug 2014 20:33:30 +0300
Subject: Bluetooth: Remove unused l2cap_conn_shutdown API
Now that there are no more users of the l2cap_conn_shutdown API (since
smp.c switched to using hci_disconnect) we can simply remove it along
with all of it's l2cap_conn variables.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 8f1652ed3326..be25eddea615 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -625,9 +625,6 @@ struct l2cap_conn {
struct delayed_work info_timer;
- int disconn_err;
- struct work_struct disconn_work;
-
struct sk_buff *rx_skb;
__u32 rx_len;
__u8 tx_ident;
@@ -947,7 +944,6 @@ void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
u8 status);
void __l2cap_physical_cfm(struct l2cap_chan *chan, int result);
-void l2cap_conn_shutdown(struct l2cap_conn *conn, int err);
struct l2cap_conn *l2cap_conn_get(struct l2cap_conn *conn);
void l2cap_conn_put(struct l2cap_conn *conn);
--
cgit v1.2.1
From e3b679d56caa2bc555dee646a6ac5861631e7a28 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 18 Aug 2014 20:33:32 +0300
Subject: Bluetooth: Update hci_disconnect() to return an error value
We'll soon use hci_disconnect() from places that are interested to know
whether the hci_send_cmd() really succeeded or not. This patch updates
hci_disconnect() to pass on any error returned from hci_send_cmd().
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index dbe73642c54c..2b6e04d37593 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -703,7 +703,7 @@ static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
return NULL;
}
-void hci_disconnect(struct hci_conn *conn, __u8 reason);
+int hci_disconnect(struct hci_conn *conn, __u8 reason);
bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
void hci_sco_setup(struct hci_conn *conn, __u8 status);
--
cgit v1.2.1
From f3d82d0c8ec025fc113408e3ad5775fed5a060ff Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 5 Sep 2014 22:19:50 +0300
Subject: Bluetooth: Move identity address update behind a workqueue
The identity address update of all channels for an l2cap_conn needs to
take the lock for each channel, i.e. it's safest to do this by a
separate workqueue callback.
Previously this was partially solved by moving the entire SMP key
distribution behind a workqueue. However, if we want SMP context locking
to be correct and safe we should always use the l2cap_chan lock when
accessing it, meaning even smp_distribute_keys needs to take that lock
which would once again create a dead lock when updating the identity
address.
The simplest way to solve this is to have l2cap_conn manage the deferred
work which is what this patch does. A subsequent patch will remove the
now unnecessary SMP key distribution work struct.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index be25eddea615..ead99f032f7a 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -633,6 +633,8 @@ struct l2cap_conn {
struct sk_buff_head pending_rx;
struct work_struct pending_rx_work;
+ struct work_struct id_addr_update_work;
+
__u8 disc_reason;
struct l2cap_chan *smp;
@@ -937,7 +939,6 @@ int l2cap_ertm_init(struct l2cap_chan *chan);
void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan);
void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan);
void l2cap_chan_del(struct l2cap_chan *chan, int err);
-void l2cap_conn_update_id_addr(struct hci_conn *hcon);
void l2cap_send_conn_req(struct l2cap_chan *chan);
void l2cap_move_start(struct l2cap_chan *chan);
void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
--
cgit v1.2.1
From fc75cc8684d21d3649b28c4c37d4ce3f000759e4 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 5 Sep 2014 22:19:52 +0300
Subject: Bluetooth: Fix locking of the SMP context
Before the move the l2cap_chan the SMP context (smp_chan) didn't have
any kind of proper locking. The best there existed was the
HCI_CONN_LE_SMP_PEND flag which was used to enable mutual exclusion for
potential multiple creators of the SMP context.
Now that SMP has been converted to use the l2cap_chan infrastructure and
since the SMP context is directly mapped to a corresponding l2cap_chan
we get the SMP context locking essentially for free through the
l2cap_chan lock. For all callbacks that l2cap_core.c makes for each
channel implementation (smp.c in the case of SMP) the l2cap_chan lock is
held through l2cap_chan_lock(chan).
Since the calls from l2cap_core.c to smp.c are covered the only missing
piece to have the locking implemented properly is to ensure that the
lock is held for any other call path that may access the SMP context.
This means user responses through mgmt.c, requests to elevate the
security of a connection through hci_conn.c, as well as any deferred
work through workqueues.
This patch adds the necessary locking to all these other code paths that
try to access the SMP context. Since mutual exclusion for the l2cap_chan
access is now covered from all directions the patch also removes
unnecessary HCI_CONN_LE_SMP_PEND flag (once we've acquired the chan lock
we can simply check whether chan->smp is set to know if there's an SMP
context).
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 2b6e04d37593..045d9133d180 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -539,7 +539,6 @@ enum {
HCI_CONN_RSWITCH_PEND,
HCI_CONN_MODE_CHANGE_PEND,
HCI_CONN_SCO_SETUP_PEND,
- HCI_CONN_LE_SMP_PEND,
HCI_CONN_MGMT_CONNECTED,
HCI_CONN_SSP_ENABLED,
HCI_CONN_SC_ENABLED,
--
cgit v1.2.1
From e676253b19b2d269cccf67fdb1592120a0cd0676 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Date: Tue, 5 Aug 2014 11:45:59 +0200
Subject: serial/8250: Add support for RS485 IOCTLs
This patch allow the users of the 8250 infrastructure to define a
handler for RS485 configration.
If no handler is defined the 8250 driver will work as usual.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
--
v2:Change suggested by Alan "One Thousand Gnomes":
- Move rs485 structure further down on the uart_8250_port structure
drivers/tty/serial/8250/8250_core.c | 39 +++++++++++++++++++++++++++++++++++++
include/linux/serial_8250.h | 3 +++
2 files changed, 42 insertions(+)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_8250.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index f93649e22c43..6dd671765312 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -96,10 +96,13 @@ struct uart_8250_port {
unsigned char msr_saved_flags;
struct uart_8250_dma *dma;
+ struct serial_rs485 rs485;
/* 8250 specific callbacks */
int (*dl_read)(struct uart_8250_port *);
void (*dl_write)(struct uart_8250_port *, int);
+ int (*rs485_config)(struct uart_8250_port *,
+ struct serial_rs485 *rs485);
};
static inline struct uart_8250_port *up_to_u8250p(struct uart_port *up)
--
cgit v1.2.1
From 55e15c949fd05d247a889df0ed0177a676fec665 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Sep 2014 12:52:17 +0200
Subject: PM / domains: Remove the pm_genpd_add|remove_callbacks APIs
There are no users of these APIs. To simplify the generic power domain
let's remove them.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 19 -------------------
1 file changed, 19 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index ebc4c76ffb73..9ae2b9e88d61 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -151,10 +151,6 @@ extern int pm_genpd_add_subdomain_names(const char *master_name,
const char *subdomain_name);
extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *target);
-extern int pm_genpd_add_callbacks(struct device *dev,
- struct gpd_dev_ops *ops,
- struct gpd_timing_data *td);
-extern int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td);
extern int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state);
extern int pm_genpd_name_attach_cpuidle(const char *name, int state);
extern int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd);
@@ -217,16 +213,6 @@ static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
-static inline int pm_genpd_add_callbacks(struct device *dev,
- struct gpd_dev_ops *ops,
- struct gpd_timing_data *td)
-{
- return -ENOSYS;
-}
-static inline int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td)
-{
- return -ENOSYS;
-}
static inline int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st)
{
return -ENOSYS;
@@ -281,11 +267,6 @@ static inline int pm_genpd_name_add_device(const char *domain_name,
return __pm_genpd_name_add_device(domain_name, dev, NULL);
}
-static inline int pm_genpd_remove_callbacks(struct device *dev)
-{
- return __pm_genpd_remove_callbacks(dev, true);
-}
-
#ifdef CONFIG_PM_GENERIC_DOMAINS_RUNTIME
extern void genpd_queue_power_off_work(struct generic_pm_domain *genpd);
extern void pm_genpd_poweroff_unused(void);
--
cgit v1.2.1
From 67da6d4bf43c4208433ef8f3ee487401b4dc9c74 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Sep 2014 12:52:18 +0200
Subject: PM / domains: Ignore callbacks for subsys generic_pm_domain_data
In a step of simplifying the generic power domain let's move away from
using these callbacks.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 9ae2b9e88d61..436ea149d40c 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -108,7 +108,6 @@ struct gpd_timing_data {
struct generic_pm_domain_data {
struct pm_domain_data base;
- struct gpd_dev_ops ops;
struct gpd_timing_data td;
struct notifier_block nb;
struct mutex lock;
--
cgit v1.2.1
From 1e0407ca54d28db8e5f02e437ff21cc6416c0be8 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Sep 2014 12:52:19 +0200
Subject: PM / domains: Remove system PM callbacks from gpd_dev_ops
There no users of these callbacks, let's simplify the generic power
domain by removing them.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 436ea149d40c..b6343d4b9b04 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -35,14 +35,6 @@ struct gpd_dev_ops {
int (*stop)(struct device *dev);
int (*save_state)(struct device *dev);
int (*restore_state)(struct device *dev);
- int (*suspend)(struct device *dev);
- int (*suspend_late)(struct device *dev);
- int (*resume_early)(struct device *dev);
- int (*resume)(struct device *dev);
- int (*freeze)(struct device *dev);
- int (*freeze_late)(struct device *dev);
- int (*thaw_early)(struct device *dev);
- int (*thaw)(struct device *dev);
bool (*active_wakeup)(struct device *dev);
};
--
cgit v1.2.1
From c5d79ec2a5715489cff16a0d1cf4fa9108a5509e Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Sep 2014 12:52:22 +0200
Subject: PM / domains: Remove dev_irq_safe from genpd config
The genpd dev_irq_safe configuration somewhat overlaps with the runtime
PM pm_runtime_irq_safe() option. Also, currently genpd don't have a
good way to deal with these device. So, until we figured out if and how
to support this in genpd, let's remove the option to configure it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index b6343d4b9b04..360c94ceeebb 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -63,7 +63,6 @@ struct generic_pm_domain {
unsigned int suspended_count; /* System suspend device counter */
unsigned int prepared_count; /* Suspend counter of prepared devices */
bool suspend_power_off; /* Power status before system suspend */
- bool dev_irq_safe; /* Device callbacks are IRQ-safe */
int (*power_off)(struct generic_pm_domain *domain);
s64 power_off_latency_ns;
int (*power_on)(struct generic_pm_domain *domain);
--
cgit v1.2.1
From d47e6464ae6c96735d4706f5cb0537fe717b6b00 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Sep 2014 12:52:24 +0200
Subject: PM / domains: Remove pm_genpd_syscore_switch() API
The pm_genpd_syscore_poweroff() API and pm_genpd_syscore_poweron() API
makes the pm_genpd_syscore_switch() API redundant.
Moreover, since there are no active users, let's just remove it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 360c94ceeebb..3997af691600 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -266,19 +266,11 @@ static inline void pm_genpd_poweroff_unused(void) {}
#endif
#ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP
-extern void pm_genpd_syscore_switch(struct device *dev, bool suspend);
+extern void pm_genpd_syscore_poweroff(struct device *dev);
+extern void pm_genpd_syscore_poweron(struct device *dev);
#else
-static inline void pm_genpd_syscore_switch(struct device *dev, bool suspend) {}
+static inline void pm_genpd_syscore_poweroff(struct device *dev) {}
+static inline void pm_genpd_syscore_poweron(struct device *dev) {}
#endif
-static inline void pm_genpd_syscore_poweroff(struct device *dev)
-{
- pm_genpd_syscore_switch(dev, true);
-}
-
-static inline void pm_genpd_syscore_poweron(struct device *dev)
-{
- pm_genpd_syscore_switch(dev, false);
-}
-
#endif /* _LINUX_PM_DOMAIN_H */
--
cgit v1.2.1
From d971f0b0eaaf3f2086bf21bbd64f7ea7e2f28459 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Sep 2014 12:52:25 +0200
Subject: PM / domains: Remove genpd_queue_power_off_work() API
There are no active users of this API. Let's remove it and if future
needs shows up we could consider to have a get/put API instead.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 3997af691600..c19c90b839b8 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -258,10 +258,8 @@ static inline int pm_genpd_name_add_device(const char *domain_name,
}
#ifdef CONFIG_PM_GENERIC_DOMAINS_RUNTIME
-extern void genpd_queue_power_off_work(struct generic_pm_domain *genpd);
extern void pm_genpd_poweroff_unused(void);
#else
-static inline void genpd_queue_power_off_work(struct generic_pm_domain *gpd) {}
static inline void pm_genpd_poweroff_unused(void) {}
#endif
--
cgit v1.2.1
From 0f574d4c3a7a325cbbef28ee738dedca9851e957 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Sep 2014 12:52:30 +0200
Subject: PM / domains: Remove default_stop_ok() API
There are currently no need to export default_stop_ok() as an API,
instead let's keep it local to the PM domain governor.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 6 ------
1 file changed, 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index c19c90b839b8..3b59f296e6ec 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -151,8 +151,6 @@ extern void pm_genpd_init(struct generic_pm_domain *genpd,
extern int pm_genpd_poweron(struct generic_pm_domain *genpd);
extern int pm_genpd_name_poweron(const char *domain_name);
-extern bool default_stop_ok(struct device *dev);
-
extern struct dev_power_governor pm_domain_always_on_gov;
#else
@@ -231,10 +229,6 @@ static inline int pm_genpd_name_poweron(const char *domain_name)
{
return -ENOSYS;
}
-static inline bool default_stop_ok(struct device *dev)
-{
- return false;
-}
#define simple_qos_governor NULL
#define pm_domain_always_on_gov NULL
#endif
--
cgit v1.2.1
From ae3c511c2d72161b11e93866203b59a3a37dfac7 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 3 Sep 2014 12:52:31 +0200
Subject: PM / domains: Keep declaration of dev_power_governors together
This is a pure code cleanup in the header file for the PM domain. No
functional change.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 3b59f296e6ec..aa03586c94a2 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -117,8 +117,6 @@ static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev)
return to_gpd_data(dev->power.subsys_data->domain_data);
}
-extern struct dev_power_governor simple_qos_governor;
-
extern struct generic_pm_domain *dev_to_genpd(struct device *dev);
extern int __pm_genpd_add_device(struct generic_pm_domain *genpd,
struct device *dev,
@@ -151,6 +149,7 @@ extern void pm_genpd_init(struct generic_pm_domain *genpd,
extern int pm_genpd_poweron(struct generic_pm_domain *genpd);
extern int pm_genpd_name_poweron(const char *domain_name);
+extern struct dev_power_governor simple_qos_governor;
extern struct dev_power_governor pm_domain_always_on_gov;
#else
--
cgit v1.2.1
From ff7693d079e58fb62d735b7b8085b53fcfb74528 Mon Sep 17 00:00:00 2001
From: Carlo Caione <carlo@caione.org>
Date: Sun, 17 Aug 2014 12:49:49 +0200
Subject: ARM: meson: serial: add MesonX SoC on-chip uart driver
The SoC has four fully functional UARTs which use the same programming
model. They are named UART_A, UART_B, UART_C and UART_AO (Always-On)
which cannot be powered off.
Signed-off-by: Carlo Caione <carlo@caione.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/serial_core.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 5820269aa132..16ad8521af6a 100644
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -244,4 +244,7 @@
/* SC16IS74xx */
#define PORT_SC16IS7XX 108
+/* MESON */
+#define PORT_MESON 109
+
#endif /* _UAPILINUX_SERIAL_CORE_H */
--
cgit v1.2.1
From 8a949b07e4062cbd07e04e6a47249e69ca65b944 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Tue, 2 Sep 2014 17:39:19 -0400
Subject: serial: core: Document lock requirement for UPF_* flags updates
The flags field of struct uart_port can only be safely modified
if the port mutex is held; no other lock prevents concurrent
changes from corrupting the field.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index cf3a1e789bf5..8cb267b1fcd5 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -152,6 +152,7 @@ struct uart_port {
unsigned long sysrq; /* sysrq timeout */
#endif
+ /* flags must be updated while holding port mutex */
upf_t flags;
#define UPF_FOURPORT ((__force upf_t) (1 << 1))
--
cgit v1.2.1
From b99b121b2aa42e60e5b73fdd3a49863337839c7b Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 5 Sep 2014 21:02:37 +0200
Subject: tty: serial: 8250_core: allow to overwrite & export
serial8250_startup()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The OMAP version of the 8250 can actually use 1:1 serial8250_startup().
However it needs to be extended by a wake up irq which should to be
requested & enabled at ->startup() time and disabled at ->shutdown() time.
v2…v3: properly copy callbacks
v1…v2: add shutdown callback
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_8250.h | 2 ++
include/linux/serial_core.h | 2 ++
2 files changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 6dd671765312..6fc9d7bee05e 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -124,6 +124,8 @@ extern void serial8250_early_out(struct uart_port *port, int offset, int value);
extern int setup_early_serial8250_console(char *cmdline);
extern void serial8250_do_set_termios(struct uart_port *port,
struct ktermios *termios, struct ktermios *old);
+extern int serial8250_do_startup(struct uart_port *port);
+extern void serial8250_do_shutdown(struct uart_port *port);
extern void serial8250_do_pm(struct uart_port *port, unsigned int state,
unsigned int oldstate);
extern int fsl8250_handle_irq(struct uart_port *port);
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 8cb267b1fcd5..3bd7d55eebce 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -122,6 +122,8 @@ struct uart_port {
void (*set_termios)(struct uart_port *,
struct ktermios *new,
struct ktermios *old);
+ int (*startup)(struct uart_port *port);
+ void (*shutdown)(struct uart_port *port);
int (*handle_irq)(struct uart_port *);
void (*pm)(struct uart_port *, unsigned int state,
unsigned int old);
--
cgit v1.2.1
From a7f26b7e1ee73ac9e766c430fea5af658d839954 Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Mon, 8 Sep 2014 19:08:34 -0400
Subject: inet: remove dead inetpeer sequence code
inetpeer sequence numbers are no longer incremented, so no need to
check and flush the tree. The function that increments the sequence
number was already dead code and removed in in "ipv4: remove unused
function" (068a6e18). Remove the code that checks for a change, too.
Verifying that v4_seq and v6_seq are never incremented and thus that
flush_check compares bp->flush_seq to 0 is trivial.
The second part of the change removes flush_check completely even
though bp->flush_seq is exactly !0 once, at initialization. This
change is correct because the time this branch is true is when
bp->root == peer_avl_empty_rcu, in which the branch and
inetpeer_invalidate_tree are a NOOP.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/inetpeer.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 01d590ee5e7e..80479abddf73 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -61,7 +61,6 @@ struct inet_peer {
struct inet_peer_base {
struct inet_peer __rcu *root;
seqlock_t lock;
- u32 flush_seq;
int total;
};
--
cgit v1.2.1
From 413fffc3a1db7f270afdf1ecb35c1edc013acc68 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 28 Aug 2014 11:22:23 +0530
Subject: cpufreq: Add support for per-policy driver data
Drivers supporting multiple clusters or multiple 'struct cpufreq_policy'
instances may need to keep per-policy data. If the core doesn't provide support
for that, they might do it in the most unoptimized way: 'per-cpu' data.
This patch adds another field in struct cpufreq_policy: 'driver_data'. It isn't
accessed by core and is for driver's internal use only.
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/cpufreq.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 7d1955afa62c..138336b6bb04 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -112,6 +112,9 @@ struct cpufreq_policy {
spinlock_t transition_lock;
wait_queue_head_t transition_wait;
struct task_struct *transition_task; /* Task which is doing the transition */
+
+ /* For cpufreq driver's internal use */
+ void *driver_data;
};
/* Only for ACPI */
--
cgit v1.2.1
From e1e930f591bfd9604c3077f0af5c390f4f890259 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 8 Sep 2014 17:09:49 -0700
Subject: Bluetooth: Fix mgmt pairing failure when authentication fails
Whether through HCI with BR/EDR or SMP with LE when authentication fails
we should also notify any pending Pair Device mgmt command. This patch
updates the mgmt_auth_failed function to take the actual hci_conn object
and makes sure that any pending pairing command is notified and cleaned
up appropriately.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 045d9133d180..206b92bfeebb 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1342,8 +1342,7 @@ int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 link_type, u8 addr_type, u32 passkey,
u8 entered);
-void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
- u8 addr_type, u8 status);
+void mgmt_auth_failed(struct hci_conn *conn, u8 status);
void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
--
cgit v1.2.1
From 0dce5454d5c258582a7da5590332d9e085886bf7 Mon Sep 17 00:00:00 2001
From: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Date: Fri, 5 Sep 2014 12:23:48 +0200
Subject: ARM: shmobile: Initial r8a7794 SoC device tree
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
[uli: reduced to minimum, added cmt, enabled scif2, split off board part]
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7794-clock.h | 80 +++++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
create mode 100644 include/dt-bindings/clock/r8a7794-clock.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7794-clock.h b/include/dt-bindings/clock/r8a7794-clock.h
new file mode 100644
index 000000000000..9ac1043e25bc
--- /dev/null
+++ b/include/dt-bindings/clock/r8a7794-clock.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2014 Renesas Electronics Corporation
+ * Copyright 2013 Ideas On Board SPRL
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_R8A7794_H__
+#define __DT_BINDINGS_CLOCK_R8A7794_H__
+
+/* CPG */
+#define R8A7794_CLK_MAIN 0
+#define R8A7794_CLK_PLL0 1
+#define R8A7794_CLK_PLL1 2
+#define R8A7794_CLK_PLL3 3
+#define R8A7794_CLK_LB 4
+#define R8A7794_CLK_QSPI 5
+#define R8A7794_CLK_SDH 6
+#define R8A7794_CLK_SD0 7
+#define R8A7794_CLK_Z 8
+
+/* MSTP0 */
+#define R8A7794_CLK_MSIOF0 0
+
+/* MSTP1 */
+#define R8A7794_CLK_TMU1 11
+#define R8A7794_CLK_TMU3 21
+#define R8A7794_CLK_TMU2 22
+#define R8A7794_CLK_CMT0 24
+#define R8A7794_CLK_TMU0 25
+
+/* MSTP2 */
+#define R8A7794_CLK_SCIFA2 2
+#define R8A7794_CLK_SCIFA1 3
+#define R8A7794_CLK_SCIFA0 4
+#define R8A7794_CLK_MSIOF2 5
+#define R8A7794_CLK_SCIFB0 6
+#define R8A7794_CLK_SCIFB1 7
+#define R8A7794_CLK_MSIOF1 8
+#define R8A7794_CLK_SCIFB2 16
+
+/* MSTP3 */
+#define R8A7794_CLK_CMT1 29
+
+/* MSTP5 */
+#define R8A7794_CLK_THERMAL 22
+#define R8A7794_CLK_PWM 23
+
+/* MSTP7 */
+#define R8A7794_CLK_HSCIF2 13
+#define R8A7794_CLK_SCIF5 14
+#define R8A7794_CLK_SCIF4 15
+#define R8A7794_CLK_HSCIF1 16
+#define R8A7794_CLK_HSCIF0 17
+#define R8A7794_CLK_SCIF3 18
+#define R8A7794_CLK_SCIF2 19
+#define R8A7794_CLK_SCIF1 20
+#define R8A7794_CLK_SCIF0 21
+
+/* MSTP8 */
+#define R8A7794_CLK_ETHER 13
+
+/* MSTP9 */
+#define R8A7794_CLK_GPIO6 5
+#define R8A7794_CLK_GPIO5 7
+#define R8A7794_CLK_GPIO4 8
+#define R8A7794_CLK_GPIO3 9
+#define R8A7794_CLK_GPIO2 10
+#define R8A7794_CLK_GPIO1 11
+#define R8A7794_CLK_GPIO0 12
+
+/* MSTP11 */
+#define R8A7794_CLK_SCIFA3 6
+#define R8A7794_CLK_SCIFA4 7
+#define R8A7794_CLK_SCIFA5 8
+
+#endif /* __DT_BINDINGS_CLOCK_R8A7794_H__ */
--
cgit v1.2.1
From f3dbd802b3caf8da92173870bc270dda6b3f84ba Mon Sep 17 00:00:00 2001
From: Rajat Jain <rajatxjain@gmail.com>
Date: Tue, 2 Sep 2014 16:26:00 -0700
Subject: PCI: Enable CRS Software Visibility for root port if it is supported
Per PCIe r3.0, sec 2.3.2, an endpoint may respond to a Configuration
Request with a Completion with Configuration Request Retry Status (CRS).
This terminates the Configuration Request.
When the CRS Software Visibility feature is disabled (as it is by default),
a Root Complex must handle a CRS Completion by re-issuing the Configuration
Request. This is invisible to software. From the CPU's point of view, an
endpoint that always responds with CRS causes a hang because the Root
Complex never supplies data to complete the CPU read.
When CRS Software Visibility is enabled, a Root Complex that receives a CRS
Completion for a read of the Vendor ID must return data of 0x0001. The
Vendor ID of 0x0001 indicates to software that the endpoint is not ready.
We now have more devices that require CRS Software Visibility. For
example, a PLX 8713 NT bridge may respond with CRS until it has been
configured via I2C, and the I2C configuration is completely independent of
PCI enumeration.
Enable CRS Software Visibility if it is supported. This allows a system
with such a device to work (though the PCI core times out waiting for it to
become ready, and we have to rescan the bus after it is ready).
This essentially reverts ad7edfe04908 ("[PCI] Do not enable CRS Software
Visibility by default"). The failures that led to ad7edfe04908 should be
addressed by 89665a6a7140 ("PCI: Check only the Vendor ID to identify
Configuration Request Retry").
[bhelgaas: changelog]
Link: http://lkml.kernel.org/r/20071029061532.5d10dfc6@snowcone
Link: http://lkml.kernel.org/r/alpine.LFD.0.9999.0712271023090.21557@woody.linux-foundation.org
Signed-off-by: Rajat Jain <rajatxjain@gmail.com>
Signed-off-by: Rajat Jain <rajatjain@juniper.net>
Signed-off-by: Guenter Roeck <groeck@juniper.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/uapi/linux/pci_regs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index 30db069bce62..57d6e56a086a 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -552,6 +552,7 @@
#define PCI_EXP_RTCTL_PMEIE 0x0008 /* PME Interrupt Enable */
#define PCI_EXP_RTCTL_CRSSVE 0x0010 /* CRS Software Visibility Enable */
#define PCI_EXP_RTCAP 30 /* Root Capabilities */
+#define PCI_EXP_RTCAP_CRSVIS 0x0001 /* CRS Software Visibility capability */
#define PCI_EXP_RTSTA 32 /* Root Status */
#define PCI_EXP_RTSTA_PME 0x00010000 /* PME status */
#define PCI_EXP_RTSTA_PENDING 0x00020000 /* PME pending */
--
cgit v1.2.1
From da3dae54e4ff09886b9a19224c8d9556bb2ba096 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Tue, 9 Sep 2014 01:27:23 +0900
Subject: Documentation: Docbook: Fix generated DocBook/kernel-api.xml
This patch fix spelling typo found in DocBook/kernel-api.xml.
It is because the file is generated from the source comments,
I have to fix the comments in source codes.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/clk.h | 2 +-
include/linux/kfifo.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/clk.h b/include/linux/clk.h
index fb5e097d8f72..afb44bfaf8d1 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -238,7 +238,7 @@ void clk_put(struct clk *clk);
/**
* devm_clk_put - "free" a managed clock source
- * @dev: device used to acuqire the clock
+ * @dev: device used to acquire the clock
* @clk: clock source acquired with devm_clk_get()
*
* Note: drivers must ensure that all clk_enable calls made on this
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index 554fde3a3927..473b43678ad1 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -722,7 +722,7 @@ __kfifo_uint_must_check_helper( \
/**
* kfifo_dma_out_finish - finish a DMA OUT operation
* @fifo: address of the fifo to be used
- * @len: number of bytes transferrd
+ * @len: number of bytes transferred
*
* This macro finish a DMA OUT operation. The out counter will be updated by
* the len parameter. No error checking will be done.
--
cgit v1.2.1
From 8ca28610e5e37193cd61fefa4310941e28de10ca Mon Sep 17 00:00:00 2001
From: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Date: Thu, 7 Aug 2014 15:14:06 +0200
Subject: mmc: include linux/types.h for bool definition in atmel-mci.h
This patch adds an include of linux/types.h to make sure bool is defined
before utilized in this header file.
Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/atmel-mci.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index 4c7a4b2104bf..91b77f8d495d 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -1,6 +1,8 @@
#ifndef __LINUX_ATMEL_MCI_H
#define __LINUX_ATMEL_MCI_H
+#include <linux/types.h>
+
#define ATMCI_MAX_NR_SLOTS 2
/**
--
cgit v1.2.1
From b3683994843a0ede0e19daccd1ac32a46b21eb39 Mon Sep 17 00:00:00 2001
From: Yi Sun <yi.y.sun@intel.com>
Date: Wed, 13 Aug 2014 13:34:01 +0800
Subject: mmc: Correct the value of MMC_NUM_PHY_PARTITION
eMMC card can support up to 7 physical partitions, including 2 boot,
1 RPMB and 4 GPs. Change MMC_NUM_PHY_PARTITION from 6 to 7, which is
the correct value.
Signed-off-by: Yi Sun <yi.y.sun@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/card.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index d424b9de3aff..bde5147a4221 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -214,11 +214,12 @@ enum mmc_blk_status {
};
/* The number of MMC physical partitions. These consist of:
- * boot partitions (2), general purpose partitions (4) in MMC v4.4.
+ * boot partitions (2), general purpose partitions (4) and
+ * RPMB partition (1) in MMC v4.4.
*/
#define MMC_NUM_BOOT_PARTITION 2
#define MMC_NUM_GP_PARTITION 4
-#define MMC_NUM_PHY_PARTITION 6
+#define MMC_NUM_PHY_PARTITION 7
#define MAX_MMC_PART_NAME_LEN 20
/*
--
cgit v1.2.1
From 3d705d14fe4c72be83bae1610680e209ee226b9d Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Tue, 19 Aug 2014 10:45:51 +0200
Subject: mmc: implement Driver Stage Register handling
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Some eMMC and SD cards implement a DSR register that allows to tune
raise/fall times and drive strength of the CMD and DATA outputs.
The values to use depend on the card in use and the host.
It might be needed to reduce the drive strength to prevent voltage peaks
above the host's specification.
Implement a 'dsr' devicetree property that allows to specify the value
to set the DSR to. For non-dt setups the new members of mmc_host can be
set by board code.
This patch was initially authored by Sascha Hauer. It contains
improvements authored by Markus Niebel and Uwe Kleine-König.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/card.h | 3 ++-
include/linux/mmc/host.h | 3 +++
2 files changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index bde5147a4221..0ea795f5feb9 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -42,7 +42,8 @@ struct mmc_csd {
unsigned int read_partial:1,
read_misalign:1,
write_partial:1,
- write_misalign:1;
+ write_misalign:1,
+ dsr_imp:1;
};
struct mmc_ext_csd {
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 7960424d0bc0..4cbf61476999 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -365,6 +365,9 @@ struct mmc_host {
unsigned int slotno; /* used for sdio acpi binding */
+ int dsr_req; /* DSR value is valid */
+ u32 dsr; /* optional driver stage (DSR) value */
+
unsigned long private[0] ____cacheline_aligned;
};
--
cgit v1.2.1
From 384b2cbd56a02efb16358ed7c0c039e4afca5ed0 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 24 Aug 2014 19:58:48 -0700
Subject: mmc: tmio: care about DMA tx/rx addr offset
Basically, SD_BUF0 Tx/Rx addresses are same
in normal TMIO controller,
but, it is different on Renesas R-Car SDHI controller
if it uses DMAC
(Rx address needs to add 0x2000 to Tx address)
This patch adds new .dma_rx_offset and cares it
Tested-by: Nguyen Xuan Nui <nx-nui@jinso.co.jp>
Tested-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mfd/tmio.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 8f6f2e91e7ae..777e29b1ad0f 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -96,6 +96,7 @@ struct tmio_mmc_dma {
int slave_id_tx;
int slave_id_rx;
int alignment_shift;
+ dma_addr_t dma_rx_offset;
bool (*filter)(struct dma_chan *chan, void *arg);
};
--
cgit v1.2.1
From b8d11962c2d83c984d5afd091e5b725ad2fd5607 Mon Sep 17 00:00:00 2001
From: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Date: Sun, 24 Aug 2014 20:00:25 -0700
Subject: mmc: tmio: control multiple block transfer mode
Renesas SDHI has "Multiple Block Transfer Mode" settings
on SD_CMD register which controls CMD12 automatically.
This patch cares it, because
CMD12 is not needed when CMD53 (= SD_IO_RW_EXTENDED)
[Kuninori Morimoto: tidyuped for upstreaming
enabled this flags for all SH-Mobile/R-Car]
Tested-by: Nguyen Xuan Nui <nx-nui@jinso.co.jp>
Tested-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mfd/tmio.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 777e29b1ad0f..7432d95b08e2 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -83,6 +83,12 @@
*/
#define TMIO_MMC_HAVE_HIGH_REG (1 << 6)
+/*
+ * Some controllers have CMD12 automatically
+ * issue/non-issue register
+ */
+#define TMIO_MMC_HAVE_CMD12_CTRL (1 << 7)
+
int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);
--
cgit v1.2.1
From 6b98757e53cb0e93b02db4067c14afcb32c90615 Mon Sep 17 00:00:00 2001
From: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Date: Sun, 24 Aug 2014 20:00:52 -0700
Subject: mmc: tmio: add TMIO_MMC_SDIO_STATUS_QUIRK
Renesas R-Car SDHI should set reserved bits
on CTL_SDIO_STATUS register when writing.
This patch adds new TMIO_MMC_SDIO_STATUS_QUIRK flags
for this purpose
[Kuninori Morimoto: tidyuped for upstreaming
enabled this flags for all SH-Mobile/R-Car]
Tested-by: Nguyen Xuan Nui <nx-nui@jinso.co.jp>
Tested-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mfd/tmio.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 7432d95b08e2..a7493ae01b58 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -89,6 +89,11 @@
*/
#define TMIO_MMC_HAVE_CMD12_CTRL (1 << 7)
+/*
+ * Some controllers needs to set 1 on SDIO status reserved bits
+ */
+#define TMIO_MMC_SDIO_STATUS_QUIRK (1 << 8)
+
int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);
--
cgit v1.2.1
From e85dd04ea8c8d32ba8eae278959d28df34338e9d Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 24 Aug 2014 20:01:54 -0700
Subject: mmc: tmio: remove Renesas specific #ifdef
This patch adds new TMIO_MMC_HAVE_CTL_DMA_REG flag,
and remove Renesas specific #ifdef from tmio driver
Tested-by: Nguyen Xuan Nui <nx-nui@jinso.co.jp>
Tested-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mfd/tmio.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index a7493ae01b58..adcb0cdb2fdb 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -94,6 +94,11 @@
*/
#define TMIO_MMC_SDIO_STATUS_QUIRK (1 << 8)
+/*
+ * Some controllers have DMA enable/disable register
+ */
+#define TMIO_MMC_HAVE_CTL_DMA_REG (1 << 9)
+
int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);
--
cgit v1.2.1
From da29fe2bf573f0ae56fdc2e790387cb73fc8c6f8 Mon Sep 17 00:00:00 2001
From: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Date: Sun, 24 Aug 2014 20:03:00 -0700
Subject: mmc: tmio: add actual clock support as option
Some controller is supporting actual clock on SD_CLK_CTRL :: DIV[7:0].
Renesas SH-Mobile SDHI doesn't support,
but, Renesas R-Car SDHI supports it.
This patch adds new TMIO_MMC_CLK_ACTUAL flag for it.
[Kuninori Morimoto: tidyuped for upstreaming]
Tested-by: Nguyen Xuan Nui <nx-nui@jinso.co.jp>
Tested-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mfd/tmio.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index adcb0cdb2fdb..90436d523e5e 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -99,6 +99,11 @@
*/
#define TMIO_MMC_HAVE_CTL_DMA_REG (1 << 9)
+/*
+ * Some controllers allows to set SDx actual clock
+ */
+#define TMIO_MMC_CLK_ACTUAL (1 << 10)
+
int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);
--
cgit v1.2.1
From 51da2240906cb94e8f6ba55e403b6206df6fb2dd Mon Sep 17 00:00:00 2001
From: Yuvaraj CD <yuvaraj.cd@gmail.com>
Date: Fri, 22 Aug 2014 19:17:50 +0530
Subject: mmc: dw_mmc: use mmc_regulator_get_supply to handle regulators
This patch makes use of mmc_regulator_get_supply() to handle
the vmmc and vqmmc regulators.Also it moves the code handling
the these regulators to dw_mci_set_ios().It turned on the vmmc
and vqmmc during MMC_POWER_UP and MMC_POWER_ON,and turned off
during MMC_POWER_OFF.
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/dw_mmc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 29ce014ab421..84e2827d0f0b 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -188,7 +188,7 @@ struct dw_mci {
/* Workaround flags */
u32 quirks;
- struct regulator *vmmc; /* Power regulator */
+ bool vqmmc_enabled;
unsigned long irq_flags; /* IRQ flags */
int irq;
};
--
cgit v1.2.1
From 0173055842cd1d9ed3984e70891c22dbf2f29372 Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Fri, 22 Aug 2014 19:17:51 +0530
Subject: mmc: dw_mmc: Support voltage changes
For UHS cards we need the ability to switch voltages from 3.3V to
1.8V. Add support to the dw_mmc driver to handle this. Note that
dw_mmc needs a little bit of extra code since the interface needs a
special bit programmed to the CMD register while CMD11 is progressing.
This means adding a few extra states to the state machine to track.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/dw_mmc.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 84e2827d0f0b..001366927cf4 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -26,6 +26,8 @@ enum dw_mci_state {
STATE_DATA_BUSY,
STATE_SENDING_STOP,
STATE_DATA_ERROR,
+ STATE_SENDING_CMD11,
+ STATE_WAITING_CMD11_DONE,
};
enum {
--
cgit v1.2.1
From e99783a45220a2c5f5a598e0e81213ecf2dbcf2f Mon Sep 17 00:00:00 2001
From: Chanho Min <chanho.min@lge.com>
Date: Sat, 30 Aug 2014 12:40:40 +0900
Subject: mmc: sdhci: handle busy-end interrupt during command
It is fully legal for a controller to start handling busy-end interrupt
before it has signaled that the command has completed. So make sure
we do things in the proper order, Or it results that command interrupt
is ignored so it can cause unexpected operations. This is founded at some
toshiba emmc with the bellow warning.
"mmc0: Got command interrupt 0x00000001 even though
no command operation was in progress."
This issue has been also reported by Youssef TRIKI:
It is not specific to Toshiba devices, and happens with eMMC devices
as well as SD card which support Auto-CMD12 rather than CMD23.
Also, similar patch is submitted by:
Gwendal Grignou <gwendal@chromium.org>
Changes since v1:
Fixed conflict with the next of git.linaro.org/people/ulf.hansson/mmc.git
and Tested if issue is fixed again.
Signed-off-by: Hankyung Yu <hankyung.yu@lge.com>
Signed-off-by: Chanho Min <chanho.min@lge.com>
Tested-by: Youssef TRIKI <youssef.triki@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdhci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 09ebe57d5ce9..0aa85ca0c788 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -146,6 +146,7 @@ struct sdhci_host {
struct mmc_command *cmd; /* Current command */
struct mmc_data *data; /* Current data request */
unsigned int data_early:1; /* Data finished before cmd */
+ unsigned int busy_handle:1; /* Handling the order of Busy-end */
struct sg_mapping_iter sg_miter; /* SG state for PIO */
unsigned int blocks; /* remaining PIO blocks */
--
cgit v1.2.1
From 2e47e84245adcb1b3872210678b6146f674fb3ff Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 2 Sep 2014 19:08:53 -0700
Subject: mmc: Add .multi_io_quirk callback for multi I/O HW bug
Historically, we have been using MMC_CAP* to handle host HW issues and
currently the block layer uses MMC_CAP2_NO_MULTI_READ flag for a multi
I/O HW bug workaround.
There are a few tweaks needed to make MMC_CAP2_NO_MULTI_READ suite all
situations. Therefore let's add an optional host ops callback to enable
host drivers to return the number of blocks it allows per request.
In a future patch and when host drivers have converted to the new
callback, MMC_CAP2_NO_MULTI_READ shall be removed.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/host.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 4cbf61476999..10e2bd6985ae 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -139,6 +139,13 @@ struct mmc_host_ops {
int (*select_drive_strength)(unsigned int max_dtr, int host_drv, int card_drv);
void (*hw_reset)(struct mmc_host *host);
void (*card_event)(struct mmc_host *host);
+
+ /*
+ * Optional callback to support controllers with HW issues for multiple
+ * I/O. Returns the number of supported blocks for the request.
+ */
+ int (*multi_io_quirk)(struct mmc_card *card,
+ unsigned int direction, int blk_size);
};
struct mmc_card;
--
cgit v1.2.1
From bbf0208d39121bd8873b032459cb2b5f35e14593 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 8 Sep 2014 23:45:25 -0700
Subject: mmc: use .multi_io_quirk on tmio_mmc
Now, tmio_mmc can use .multi_io_quirk callback
instead of MMC_CAP2_NO_MULTI_READ flags.
let's use it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mfd/tmio.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 90436d523e5e..57388171610d 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -5,6 +5,7 @@
#include <linux/fb.h>
#include <linux/io.h>
#include <linux/jiffies.h>
+#include <linux/mmc/card.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@@ -142,6 +143,8 @@ struct tmio_mmc_data {
/* clock management callbacks */
int (*clk_enable)(struct platform_device *pdev, unsigned int *f);
void (*clk_disable)(struct platform_device *pdev);
+ int (*multi_io_quirk)(struct mmc_card *card,
+ unsigned int direction, int blk_size);
};
/*
--
cgit v1.2.1
From 0abb71feb228ddbd17e0dfa13216541e036bb549 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 8 Sep 2014 23:46:49 -0700
Subject: mmc: remove MMC_CAP2_NO_MULTI_READ flags
Now, mmc framework uses multi_io_quirk
for I/O HW bug workaround.
MMC_CAP2_NO_MULTI_READ flag is no longer needed
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/host.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 10e2bd6985ae..797ae657dc3d 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -272,7 +272,6 @@ struct mmc_host {
#define MMC_CAP2_BOOTPART_NOACC (1 << 0) /* Boot partition no access */
#define MMC_CAP2_FULL_PWR_CYCLE (1 << 2) /* Can do full power cycle */
-#define MMC_CAP2_NO_MULTI_READ (1 << 3) /* Multiblock reads don't work */
#define MMC_CAP2_HS200_1_8V_SDR (1 << 5) /* can support */
#define MMC_CAP2_HS200_1_2V_SDR (1 << 6) /* can support */
#define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \
--
cgit v1.2.1
From 9d2fa2428ae149ba3a5b7a4ceb0a9e11f1882b3b Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 27 Aug 2014 13:00:51 +0200
Subject: mmc: slot-gpio: add gpiod variant to get wp GPIO
This makes it possible to get the write protect (read only)
GPIO line from a GPIO descriptor. Written to exactly mirror
the card detect function.
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/slot-gpio.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h
index d2433381e828..a0d0442c15bf 100644
--- a/include/linux/mmc/slot-gpio.h
+++ b/include/linux/mmc/slot-gpio.h
@@ -25,6 +25,9 @@ void mmc_gpio_free_cd(struct mmc_host *host);
int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
unsigned int idx, bool override_active_level,
unsigned int debounce);
+int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
+ unsigned int idx, bool override_active_level,
+ unsigned int debounce);
void mmc_gpiod_free_cd(struct mmc_host *host);
void mmc_gpiod_request_cd_irq(struct mmc_host *host);
--
cgit v1.2.1
From 3034a146820c26fe6da66a45f6340fe87fe0983a Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Fri, 27 Jun 2014 18:15:44 +0300
Subject: ima: pass 'opened' flag to identify newly created files
Empty files and missing xattrs do not guarantee that a file was
just created. This patch passes FILE_CREATED flag to IMA to
reliably identify new files.
Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> 3.14+
---
include/linux/ima.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/ima.h b/include/linux/ima.h
index 7cf5e9b32550..120ccc53fcb7 100644
--- a/include/linux/ima.h
+++ b/include/linux/ima.h
@@ -15,7 +15,7 @@ struct linux_binprm;
#ifdef CONFIG_IMA
extern int ima_bprm_check(struct linux_binprm *bprm);
-extern int ima_file_check(struct file *file, int mask);
+extern int ima_file_check(struct file *file, int mask, int opened);
extern void ima_file_free(struct file *file);
extern int ima_file_mmap(struct file *file, unsigned long prot);
extern int ima_module_check(struct file *file);
@@ -27,7 +27,7 @@ static inline int ima_bprm_check(struct linux_binprm *bprm)
return 0;
}
-static inline int ima_file_check(struct file *file, int mask)
+static inline int ima_file_check(struct file *file, int mask, int opened)
{
return 0;
}
--
cgit v1.2.1
From 2a5538e9aa4929329813bee69922c9ae4990fcad Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 25 Aug 2014 12:05:27 +0200
Subject: netfilter: nat: move specific NAT IPv6 to core
Move the specific NAT IPv6 core functions that are called from the
hooks from ip6table_nat.c to nf_nat_l3proto_ipv6.c. This prepares the
ground to allow iptables and nft to use the same NAT engine code that
comes in a follow up patch.
This also renames nf_nat_ipv6_fn to nft_nat_ipv6_fn in
net/ipv6/netfilter/nft_chain_nat_ipv6.c to avoid a compilation breakage.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_nat_l3proto.h | 37 ++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
(limited to 'include')
diff --git a/include/net/netfilter/nf_nat_l3proto.h b/include/net/netfilter/nf_nat_l3proto.h
index bc2d51574489..340c013795a4 100644
--- a/include/net/netfilter/nf_nat_l3proto.h
+++ b/include/net/netfilter/nf_nat_l3proto.h
@@ -84,4 +84,41 @@ int nf_nat_icmpv6_reply_translation(struct sk_buff *skb, struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
unsigned int hooknum, unsigned int hdrlen);
+unsigned int nf_nat_ipv6_in(const struct nf_hook_ops *ops, struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ unsigned int (*do_chain)(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ struct nf_conn *ct));
+
+unsigned int nf_nat_ipv6_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ unsigned int (*do_chain)(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ struct nf_conn *ct));
+
+unsigned int nf_nat_ipv6_local_fn(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ unsigned int (*do_chain)(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ struct nf_conn *ct));
+
+unsigned int nf_nat_ipv6_fn(const struct nf_hook_ops *ops, struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ unsigned int (*do_chain)(const struct nf_hook_ops *ops,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ struct nf_conn *ct));
+
#endif /* _NF_NAT_L3PROTO_H */
--
cgit v1.2.1
From 3045d76070abe725dbb7fd8ff39c27b820d5a7eb Mon Sep 17 00:00:00 2001
From: Ana Rey <anarey@gmail.com>
Date: Tue, 2 Sep 2014 20:36:14 +0200
Subject: netfilter: nf_tables: add devgroup support in meta expresion
Add devgroup support to let us match device group of a packets incoming
or outgoing interface.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_tables.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index c9b6f00a3fb7..c000947d3f38 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -573,6 +573,8 @@ enum nft_exthdr_attributes {
* @NFT_META_BRI_OIFNAME: packet output bridge interface name
* @NFT_META_PKTTYPE: packet type (skb->pkt_type), special handling for loopback
* @NFT_META_CPU: cpu id through smp_processor_id()
+ * @NFT_META_IIFGROUP: packet input interface group
+ * @NFT_META_OIFGROUP: packet output interface group
*/
enum nft_meta_keys {
NFT_META_LEN,
@@ -596,6 +598,8 @@ enum nft_meta_keys {
NFT_META_BRI_OIFNAME,
NFT_META_PKTTYPE,
NFT_META_CPU,
+ NFT_META_IIFGROUP,
+ NFT_META_OIFGROUP,
};
/**
--
cgit v1.2.1
From e42eff8a32f8b7bde88ea3c5a56391407cbe84f3 Mon Sep 17 00:00:00 2001
From: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date: Thu, 4 Sep 2014 14:06:14 +0200
Subject: netfilter: nft_nat: include a flag attribute
Both SNAT and DNAT (and the upcoming masquerade) can have additional
configuration parameters, such as port randomization and NAT addressing
persistence. We can cover these scenarios by simply adding a flag
attribute for userspace to fill when needed.
The flags to use are defined in include/uapi/linux/netfilter/nf_nat.h:
NF_NAT_RANGE_MAP_IPS
NF_NAT_RANGE_PROTO_SPECIFIED
NF_NAT_RANGE_PROTO_RANDOM
NF_NAT_RANGE_PERSISTENT
NF_NAT_RANGE_PROTO_RANDOM_FULLY
NF_NAT_RANGE_PROTO_RANDOM_ALL
The caller must take care of not messing up with the flags, as they are
added unconditionally to the final resulting nf_nat_range.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_nat.h | 5 +++++
include/uapi/linux/netfilter/nf_tables.h | 2 ++
2 files changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nf_nat.h b/include/uapi/linux/netfilter/nf_nat.h
index 1ad3659102b6..0880781ad7b6 100644
--- a/include/uapi/linux/netfilter/nf_nat.h
+++ b/include/uapi/linux/netfilter/nf_nat.h
@@ -13,6 +13,11 @@
#define NF_NAT_RANGE_PROTO_RANDOM_ALL \
(NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PROTO_RANDOM_FULLY)
+#define NF_NAT_RANGE_MASK \
+ (NF_NAT_RANGE_MAP_IPS | NF_NAT_RANGE_PROTO_SPECIFIED | \
+ NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PERSISTENT | \
+ NF_NAT_RANGE_PROTO_RANDOM_FULLY)
+
struct nf_nat_ipv4_range {
unsigned int flags;
__be32 min_ip;
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index c000947d3f38..6022c6e6be18 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -785,6 +785,7 @@ enum nft_nat_types {
* @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
* @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
* @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
+ * @NFTA_NAT_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
*/
enum nft_nat_attributes {
NFTA_NAT_UNSPEC,
@@ -794,6 +795,7 @@ enum nft_nat_attributes {
NFTA_NAT_REG_ADDR_MAX,
NFTA_NAT_REG_PROTO_MIN,
NFTA_NAT_REG_PROTO_MAX,
+ NFTA_NAT_FLAGS,
__NFTA_NAT_MAX
};
#define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1)
--
cgit v1.2.1
From 8dd33cc93ec92b8460ed2ad98c6db39276f6a72b Mon Sep 17 00:00:00 2001
From: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date: Thu, 4 Sep 2014 14:06:33 +0200
Subject: netfilter: nf_nat: generalize IPv4 masquerading support for nf_tables
Let's refactor the code so we can reach the masquerade functionality
from outside the xt context (ie. nftables).
The patch includes the addition of an atomic counter to the masquerade
notifier: the stuff to be done by the notifier is the same for xt and
nftables. Therefore, only one notification handler is needed.
This factorization only involves IPv4; a similar patch follows to
handle IPv6.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv4/nf_nat_masquerade.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
create mode 100644 include/net/netfilter/ipv4/nf_nat_masquerade.h
(limited to 'include')
diff --git a/include/net/netfilter/ipv4/nf_nat_masquerade.h b/include/net/netfilter/ipv4/nf_nat_masquerade.h
new file mode 100644
index 000000000000..a9c001c646da
--- /dev/null
+++ b/include/net/netfilter/ipv4/nf_nat_masquerade.h
@@ -0,0 +1,14 @@
+#ifndef _NF_NAT_MASQUERADE_IPV4_H_
+#define _NF_NAT_MASQUERADE_IPV4_H_
+
+#include <net/netfilter/nf_nat.h>
+
+unsigned int
+nf_nat_masquerade_ipv4(struct sk_buff *skb, unsigned int hooknum,
+ const struct nf_nat_range *range,
+ const struct net_device *out);
+
+void nf_nat_masquerade_ipv4_register_notifier(void);
+void nf_nat_masquerade_ipv4_unregister_notifier(void);
+
+#endif /*_NF_NAT_MASQUERADE_IPV4_H_ */
--
cgit v1.2.1
From be6b635cd674add9410efa9ac6f03e0040848b12 Mon Sep 17 00:00:00 2001
From: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date: Thu, 4 Sep 2014 14:06:49 +0200
Subject: netfilter: nf_nat: generalize IPv6 masquerading support for nf_tables
Let's refactor the code so we can reach the masquerade functionality
from outside the xt context (ie. nftables).
The patch includes the addition of an atomic counter to the masquerade
notifier: the stuff to be done by the notifier is the same for xt and
nftables. Therefore, only one notification handler is needed.
This factorization only involves IPv6; a similar patch exists to
handle IPv4.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv6/nf_nat_masquerade.h | 10 ++++++++++
1 file changed, 10 insertions(+)
create mode 100644 include/net/netfilter/ipv6/nf_nat_masquerade.h
(limited to 'include')
diff --git a/include/net/netfilter/ipv6/nf_nat_masquerade.h b/include/net/netfilter/ipv6/nf_nat_masquerade.h
new file mode 100644
index 000000000000..0a13396cd390
--- /dev/null
+++ b/include/net/netfilter/ipv6/nf_nat_masquerade.h
@@ -0,0 +1,10 @@
+#ifndef _NF_NAT_MASQUERADE_IPV6_H_
+#define _NF_NAT_MASQUERADE_IPV6_H_
+
+unsigned int
+nf_nat_masquerade_ipv6(struct sk_buff *skb, const struct nf_nat_range *range,
+ const struct net_device *out);
+void nf_nat_masquerade_ipv6_register_notifier(void);
+void nf_nat_masquerade_ipv6_unregister_notifier(void);
+
+#endif /* _NF_NAT_MASQUERADE_IPV6_H_ */
--
cgit v1.2.1
From 9ba1f726bec090399eb9bb9157eb32dedc8e8c45 Mon Sep 17 00:00:00 2001
From: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date: Mon, 8 Sep 2014 13:45:00 +0200
Subject: netfilter: nf_tables: add new nft_masq expression
The nft_masq expression is intended to perform NAT in the masquerade flavour.
We decided to have the masquerade functionality in a separated expression other
than nft_nat.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nft_masq.h | 16 ++++++++++++++++
include/uapi/linux/netfilter/nf_tables.h | 11 +++++++++++
2 files changed, 27 insertions(+)
create mode 100644 include/net/netfilter/nft_masq.h
(limited to 'include')
diff --git a/include/net/netfilter/nft_masq.h b/include/net/netfilter/nft_masq.h
new file mode 100644
index 000000000000..c72729f954f4
--- /dev/null
+++ b/include/net/netfilter/nft_masq.h
@@ -0,0 +1,16 @@
+#ifndef _NFT_MASQ_H_
+#define _NFT_MASQ_H_
+
+struct nft_masq {
+ u32 flags;
+};
+
+extern const struct nla_policy nft_masq_policy[];
+
+int nft_masq_init(const struct nft_ctx *ctx,
+ const struct nft_expr *expr,
+ const struct nlattr * const tb[]);
+
+int nft_masq_dump(struct sk_buff *skb, const struct nft_expr *expr);
+
+#endif /* _NFT_MASQ_H_ */
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 6022c6e6be18..eeec0ae845ef 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -800,4 +800,15 @@ enum nft_nat_attributes {
};
#define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1)
+/**
+ * enum nft_masq_attributes - nf_tables masquerade expression attributes
+ *
+ * @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
+ */
+enum nft_masq_attributes {
+ NFTA_MASQ_FLAGS,
+ __NFTA_MASQ_MAX
+};
+#define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1)
+
#endif /* _LINUX_NF_TABLES_H */
--
cgit v1.2.1
From ef979a26e3d521d51dbd9950e46a69e303073171 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 9 Sep 2014 08:56:48 +0800
Subject: usb: gadget: add reset API at usb_gadget_driver
Adding reset API for UDC bus reset handler is useful for below
two issues.
Current disconnect API at usb_gadget_driver is also invoked at
udc's bus reset handler, but the document says it is invoked when
the host is disconnected.
Besides, we may expect the gadget_driver to do different things
for host sends bus reset and host disconnects gadget, eg, we may not
want to flush dirty page for mass storage at bus reset, and want to
do it at disconnection.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/gadget.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index c540557b564b..598a6e9b2850 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -817,6 +817,8 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
* Called in a context that permits sleeping.
* @suspend: Invoked on USB suspend. May be called in_interrupt.
* @resume: Invoked on USB resume. May be called in_interrupt.
+ * @reset: Invoked on USB bus reset. It is mandatory for all gadget drivers
+ * and should be called in_interrupt.
* @driver: Driver model state for this driver.
*
* Devices are disabled till a gadget driver successfully bind()s, which
@@ -874,6 +876,7 @@ struct usb_gadget_driver {
void (*disconnect)(struct usb_gadget *);
void (*suspend)(struct usb_gadget *);
void (*resume)(struct usb_gadget *);
+ void (*reset)(struct usb_gadget *);
/* FIXME support safe rmmod */
struct device_driver driver;
--
cgit v1.2.1
From c559a353410939c0884e83bdb0e2420a986ac53b Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Tue, 9 Sep 2014 08:23:16 +0200
Subject: usb: gadget: f_fs: add ioctl returning ep descriptor
This patch introduces ioctl named FUNCTIONFS_ENDPOINT_DESC, which
returns endpoint descriptor to userspace. It works only if function
is active.
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/uapi/linux/usb/functionfs.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
index 6d2a16b834bf..7c7a2feb0e6e 100644
--- a/include/uapi/linux/usb/functionfs.h
+++ b/include/uapi/linux/usb/functionfs.h
@@ -275,6 +275,12 @@ struct usb_functionfs_event {
*/
#define FUNCTIONFS_ENDPOINT_REVMAP _IO('g', 129)
+/*
+ * Returns endpoint descriptor. If function is not active returns -ENODEV.
+ */
+#define FUNCTIONFS_ENDPOINT_DESC _IOR('g', 130, \
+ struct usb_endpoint_descriptor)
+
#endif /* _UAPI__LINUX_FUNCTIONFS_H__ */
--
cgit v1.2.1
From 02ab695bb37ee9ad515df0d0790d5977505dd04a Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Thu, 4 Sep 2014 22:17:17 -0700
Subject: net: filter: add "load 64-bit immediate" eBPF instruction
add BPF_LD_IMM64 instruction to load 64-bit immediate value into a register.
All previous instructions were 8-byte. This is first 16-byte instruction.
Two consecutive 'struct bpf_insn' blocks are interpreted as single instruction:
insn[0].code = BPF_LD | BPF_DW | BPF_IMM
insn[0].dst_reg = destination register
insn[0].imm = lower 32-bit
insn[1].code = 0
insn[1].imm = upper 32-bit
All unused fields must be zero.
Classic BPF has similar instruction: BPF_LD | BPF_W | BPF_IMM
which loads 32-bit immediate value into a register.
x64 JITs it as single 'movabsq %rax, imm64'
arm64 may JIT as sequence of four 'movk x0, #imm16, lsl #shift' insn
Note that old eBPF programs are binary compatible with new interpreter.
It helps eBPF programs load 64-bit constant into a register with one
instruction instead of using two registers and 4 instructions:
BPF_MOV32_IMM(R1, imm32)
BPF_ALU64_IMM(BPF_LSH, R1, 32)
BPF_MOV32_IMM(R2, imm32)
BPF_ALU64_REG(BPF_OR, R1, R2)
User space generated programs will use this instruction to load constants only.
To tell kernel that user space needs a pointer the _pseudo_ variant of
this instruction may be added later, which will use extra bits of encoding
to indicate what type of pointer user space is asking kernel to provide.
For example 'off' or 'src_reg' fields can be used for such purpose.
src_reg = 1 could mean that user space is asking kernel to validate and
load in-kernel map pointer.
src_reg = 2 could mean that user space needs readonly data section pointer
src_reg = 3 could mean that user space needs a pointer to per-cpu local data
All such future pseudo instructions will not be carrying the actual pointer
as part of the instruction, but rather will be treated as a request to kernel
to provide one. The kernel will verify the request_for_a_pointer, then
will drop _pseudo_ marking and will store actual internal pointer inside
the instruction, so the end result is the interpreter and JITs never
see pseudo BPF_LD_IMM64 insns and only operate on generic BPF_LD_IMM64 that
loads 64-bit immediate into a register. User space never operates on direct
pointers and verifier can easily recognize request_for_pointer vs other
instructions.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/filter.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/linux/filter.h b/include/linux/filter.h
index c78994593355..bf323da77950 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -166,6 +166,24 @@ enum {
.off = 0, \
.imm = IMM })
+/* BPF_LD_IMM64 macro encodes single 'load 64-bit immediate' insn */
+#define BPF_LD_IMM64(DST, IMM) \
+ BPF_LD_IMM64_RAW(DST, 0, IMM)
+
+#define BPF_LD_IMM64_RAW(DST, SRC, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_LD | BPF_DW | BPF_IMM, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = (__u32) (IMM) }), \
+ ((struct bpf_insn) { \
+ .code = 0, /* zero is reserved opcode */ \
+ .dst_reg = 0, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = ((__u64) (IMM)) >> 32 })
+
/* Short form of mov based on type, BPF_X: dst_reg = src_reg, BPF_K: dst_reg = imm32 */
#define BPF_MOV64_RAW(TYPE, DST, SRC, IMM) \
--
cgit v1.2.1
From daedfb22451dd02b35c0549566cbb7cc06bdd53b Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Thu, 4 Sep 2014 22:17:18 -0700
Subject: net: filter: split filter.h and expose eBPF to user space
allow user space to generate eBPF programs
uapi/linux/bpf.h: eBPF instruction set definition
linux/filter.h: the rest
This patch only moves macro definitions, but practically it freezes existing
eBPF instruction set, though new instructions can still be added in the future.
These eBPF definitions cannot go into uapi/linux/filter.h, since the names
may conflict with existing applications.
Full eBPF ISA description is in Documentation/networking/filter.txt
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/filter.h | 56 +---------------------------------------
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/bpf.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 67 insertions(+), 55 deletions(-)
create mode 100644 include/uapi/linux/bpf.h
(limited to 'include')
diff --git a/include/linux/filter.h b/include/linux/filter.h
index bf323da77950..8f82ef3f1cdd 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -10,58 +10,12 @@
#include <linux/workqueue.h>
#include <uapi/linux/filter.h>
#include <asm/cacheflush.h>
+#include <uapi/linux/bpf.h>
struct sk_buff;
struct sock;
struct seccomp_data;
-/* Internally used and optimized filter representation with extended
- * instruction set based on top of classic BPF.
- */
-
-/* instruction classes */
-#define BPF_ALU64 0x07 /* alu mode in double word width */
-
-/* ld/ldx fields */
-#define BPF_DW 0x18 /* double word */
-#define BPF_XADD 0xc0 /* exclusive add */
-
-/* alu/jmp fields */
-#define BPF_MOV 0xb0 /* mov reg to reg */
-#define BPF_ARSH 0xc0 /* sign extending arithmetic shift right */
-
-/* change endianness of a register */
-#define BPF_END 0xd0 /* flags for endianness conversion: */
-#define BPF_TO_LE 0x00 /* convert to little-endian */
-#define BPF_TO_BE 0x08 /* convert to big-endian */
-#define BPF_FROM_LE BPF_TO_LE
-#define BPF_FROM_BE BPF_TO_BE
-
-#define BPF_JNE 0x50 /* jump != */
-#define BPF_JSGT 0x60 /* SGT is signed '>', GT in x86 */
-#define BPF_JSGE 0x70 /* SGE is signed '>=', GE in x86 */
-#define BPF_CALL 0x80 /* function call */
-#define BPF_EXIT 0x90 /* function return */
-
-/* Register numbers */
-enum {
- BPF_REG_0 = 0,
- BPF_REG_1,
- BPF_REG_2,
- BPF_REG_3,
- BPF_REG_4,
- BPF_REG_5,
- BPF_REG_6,
- BPF_REG_7,
- BPF_REG_8,
- BPF_REG_9,
- BPF_REG_10,
- __MAX_BPF_REG,
-};
-
-/* BPF has 10 general purpose 64-bit registers and stack frame. */
-#define MAX_BPF_REG __MAX_BPF_REG
-
/* ArgX, context and stack frame pointer register positions. Note,
* Arg1, Arg2, Arg3, etc are used as argument mappings of function
* calls in BPF_CALL instruction.
@@ -322,14 +276,6 @@ enum {
#define SK_RUN_FILTER(filter, ctx) \
(*filter->prog->bpf_func)(ctx, filter->prog->insnsi)
-struct bpf_insn {
- __u8 code; /* opcode */
- __u8 dst_reg:4; /* dest register */
- __u8 src_reg:4; /* source register */
- __s16 off; /* signed offset */
- __s32 imm; /* signed immediate constant */
-};
-
#ifdef CONFIG_COMPAT
/* A struct sock_filter is architecture independent. */
struct compat_sock_fprog {
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 24e9033f8b3f..fb3f7b675229 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -67,6 +67,7 @@ header-y += bfs_fs.h
header-y += binfmts.h
header-y += blkpg.h
header-y += blktrace_api.h
+header-y += bpf.h
header-y += bpqether.h
header-y += bsg.h
header-y += btrfs.h
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
new file mode 100644
index 000000000000..479ed0b6be16
--- /dev/null
+++ b/include/uapi/linux/bpf.h
@@ -0,0 +1,65 @@
+/* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+#ifndef _UAPI__LINUX_BPF_H__
+#define _UAPI__LINUX_BPF_H__
+
+#include <linux/types.h>
+
+/* Extended instruction set based on top of classic BPF */
+
+/* instruction classes */
+#define BPF_ALU64 0x07 /* alu mode in double word width */
+
+/* ld/ldx fields */
+#define BPF_DW 0x18 /* double word */
+#define BPF_XADD 0xc0 /* exclusive add */
+
+/* alu/jmp fields */
+#define BPF_MOV 0xb0 /* mov reg to reg */
+#define BPF_ARSH 0xc0 /* sign extending arithmetic shift right */
+
+/* change endianness of a register */
+#define BPF_END 0xd0 /* flags for endianness conversion: */
+#define BPF_TO_LE 0x00 /* convert to little-endian */
+#define BPF_TO_BE 0x08 /* convert to big-endian */
+#define BPF_FROM_LE BPF_TO_LE
+#define BPF_FROM_BE BPF_TO_BE
+
+#define BPF_JNE 0x50 /* jump != */
+#define BPF_JSGT 0x60 /* SGT is signed '>', GT in x86 */
+#define BPF_JSGE 0x70 /* SGE is signed '>=', GE in x86 */
+#define BPF_CALL 0x80 /* function call */
+#define BPF_EXIT 0x90 /* function return */
+
+/* Register numbers */
+enum {
+ BPF_REG_0 = 0,
+ BPF_REG_1,
+ BPF_REG_2,
+ BPF_REG_3,
+ BPF_REG_4,
+ BPF_REG_5,
+ BPF_REG_6,
+ BPF_REG_7,
+ BPF_REG_8,
+ BPF_REG_9,
+ BPF_REG_10,
+ __MAX_BPF_REG,
+};
+
+/* BPF has 10 general purpose 64-bit registers and stack frame. */
+#define MAX_BPF_REG __MAX_BPF_REG
+
+struct bpf_insn {
+ __u8 code; /* opcode */
+ __u8 dst_reg:4; /* dest register */
+ __u8 src_reg:4; /* source register */
+ __s16 off; /* signed offset */
+ __s32 imm; /* signed immediate constant */
+};
+
+#endif /* _UAPI__LINUX_BPF_H__ */
--
cgit v1.2.1
From 49a601589caaf0e93194c0cc9b4ecddbe75dd2d5 Mon Sep 17 00:00:00 2001
From: Vincent Bernat <vincent@bernat.im>
Date: Fri, 5 Sep 2014 15:09:03 +0200
Subject: net/ipv4: bind ip_nonlocal_bind to current netns
net.ipv4.ip_nonlocal_bind sysctl was global to all network
namespaces. This patch allows to set a different value for each
network namespace.
Signed-off-by: Vincent Bernat <vincent@bernat.im>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip.h | 2 --
include/net/netns/ipv4.h | 1 +
2 files changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/ip.h b/include/net/ip.h
index c8fd6112bd0b..14bfc8e1bcf9 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -229,8 +229,6 @@ static inline int inet_is_local_reserved_port(struct net *net, int port)
}
#endif
-extern int sysctl_ip_nonlocal_bind;
-
/* From inetpeer.c */
extern int inet_peer_threshold;
extern int inet_peer_minttl;
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index aec5e12f9f19..24945cefc4fd 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -76,6 +76,7 @@ struct netns_ipv4 {
int sysctl_tcp_ecn;
int sysctl_ip_no_pmtu_disc;
int sysctl_ip_fwd_use_pmtu;
+ int sysctl_ip_nonlocal_bind;
int sysctl_fwmark_reflect;
int sysctl_tcp_fwmark_accept;
--
cgit v1.2.1
From e5c3ea5c668033b303e7ac835d7d91da32d97958 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 5 Sep 2014 15:51:31 +0200
Subject: bridge: implement rtnl_link_ops->get_size and
rtnl_link_ops->fill_info
Allow rtnetlink users to get bridge master info in IFLA_INFO_DATA attr
This initial part implements forward_delay, hello_time, max_age options.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_link.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index ff957604a721..c80f95f6ee78 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -215,6 +215,18 @@ enum in6_addr_gen_mode {
IN6_ADDR_GEN_MODE_NONE,
};
+/* Bridge section */
+
+enum {
+ IFLA_BR_UNSPEC,
+ IFLA_BR_FORWARD_DELAY,
+ IFLA_BR_HELLO_TIME,
+ IFLA_BR_MAX_AGE,
+ __IFLA_BR_MAX,
+};
+
+#define IFLA_BR_MAX (__IFLA_BR_MAX - 1)
+
enum {
BRIDGE_MODE_UNSPEC,
BRIDGE_MODE_HAIRPIN,
--
cgit v1.2.1
From dc8ecdd3a3fccf73fcb07711cde064ce5727f9d1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 1 Sep 2014 23:11:06 +0200
Subject: bcma: move bus struct setup into early part of host specific code
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This change is important for SoC host. In future we will want to know
chip ID (needed for early MIPS boot) before doing cores scanning.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/bcma/bcma.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 0272e49135d0..c1ba87d1548e 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -332,7 +332,6 @@ struct bcma_bus {
struct bcma_device *mapped_core;
struct list_head cores;
u8 nr_cores;
- u8 init_done:1;
u8 num;
struct bcma_drv_cc drv_cc;
--
cgit v1.2.1
From a395135ddebb0a06052b84c309eb6cb68b79c797 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 1 Sep 2014 23:11:07 +0200
Subject: bcma: use separated function to initialize bus on SoC
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This is required to split SoC bus init into two phases. The later one
(which includes scanning) should be called when kalloc is available.
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/bcma/bcma_soc.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/bcma/bcma_soc.h b/include/linux/bcma/bcma_soc.h
index 4203c5593b9f..f24d245f8394 100644
--- a/include/linux/bcma/bcma_soc.h
+++ b/include/linux/bcma/bcma_soc.h
@@ -10,6 +10,7 @@ struct bcma_soc {
};
int __init bcma_host_soc_register(struct bcma_soc *soc);
+int __init bcma_host_soc_init(struct bcma_soc *soc);
int bcma_bus_register(struct bcma_bus *bus);
--
cgit v1.2.1
From 23a2f39c8f4035eade7f226eb7ada30c78d9eee3 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Mon, 8 Sep 2014 22:53:35 +0200
Subject: bcma: store more alternative addresses
Each core could have more than one alternative address. There are cores
with 8 alternative addresses for different functions. The PHY control
in the Chip common B core is done through the 2. alternative address
and not the first one.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
CC: linux-usb@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/bcma/bcma.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index c1ba87d1548e..7fc16c991291 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -267,7 +267,7 @@ struct bcma_device {
u8 core_unit;
u32 addr;
- u32 addr1;
+ u32 addr_s[8];
u32 wrap;
void __iomem *io_addr;
--
cgit v1.2.1
From 1716bcf3f76fe71e98d4851a3eb73ea3d93d4773 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Mon, 8 Sep 2014 22:53:36 +0200
Subject: bcma: add support for chipcommon B core
This core is used on BCM4708 to configure the PCIe and USB3 PHYs and it
contains the addresses to the Device Management unit. This will be used
by the PCIe driver first.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/bcma/bcma.h | 1 +
include/linux/bcma/bcma_driver_chipcommon.h | 8 ++++++++
2 files changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 7fc16c991291..634597917670 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -335,6 +335,7 @@ struct bcma_bus {
u8 num;
struct bcma_drv_cc drv_cc;
+ struct bcma_drv_cc_b drv_cc_b;
struct bcma_drv_pci drv_pci[2];
struct bcma_drv_pcie2 drv_pcie2;
struct bcma_drv_mips drv_mips;
diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h
index 63d105cd14a3..db6fa217f98b 100644
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -644,6 +644,12 @@ struct bcma_drv_cc {
#endif
};
+struct bcma_drv_cc_b {
+ struct bcma_device *core;
+ u8 setup_done:1;
+ void __iomem *mii;
+};
+
/* Register access */
#define bcma_cc_read32(cc, offset) \
bcma_read32((cc)->core, offset)
@@ -699,4 +705,6 @@ extern void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid);
extern u32 bcma_pmu_get_bus_clock(struct bcma_drv_cc *cc);
+void bcma_chipco_b_mii_write(struct bcma_drv_cc_b *ccb, u32 offset, u32 value);
+
#endif /* LINUX_BCMA_DRIVER_CC_H_ */
--
cgit v1.2.1
From d0449b90f80f263e17e8b3ce31442e45121dc46c Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 22 Aug 2014 10:18:42 -0400
Subject: locks: Remove unused conf argument from lm_grant
This argument is always NULL so don't pass it around.
[jlayton: remove dependencies on previous patches in series]
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 94187721ad41..908af4f81680 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -869,7 +869,7 @@ struct lock_manager_operations {
int (*lm_compare_owner)(struct file_lock *, struct file_lock *);
unsigned long (*lm_owner_key)(struct file_lock *);
void (*lm_notify)(struct file_lock *); /* unblock callback */
- int (*lm_grant)(struct file_lock *, struct file_lock *, int);
+ int (*lm_grant)(struct file_lock *, int);
void (*lm_break)(struct file_lock *);
int (*lm_change)(struct file_lock **, int);
};
--
cgit v1.2.1
From 3fe0fff18fe87c6a2179837de68d1174903c6367 Mon Sep 17 00:00:00 2001
From: Kinglong Mee <kinglongmee@gmail.com>
Date: Fri, 22 Aug 2014 10:18:42 -0400
Subject: locks: Rename __locks_copy_lock() to locks_copy_conflock()
Jeff advice, " Right now __locks_copy_lock is only used to copy
conflocks. It would be good to rename that to something more
distinct (i.e.locks_copy_conflock), to make it clear that we're
generating a conflock there."
v5: change order from 3/6 to 2/6
v4: new patch only renaming function name
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
include/linux/fs.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 908af4f81680..5ab86f44b697 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -966,7 +966,7 @@ void locks_free_lock(struct file_lock *fl);
extern void locks_init_lock(struct file_lock *);
extern struct file_lock * locks_alloc_lock(void);
extern void locks_copy_lock(struct file_lock *, struct file_lock *);
-extern void __locks_copy_lock(struct file_lock *, const struct file_lock *);
+extern void locks_copy_conflock(struct file_lock *, struct file_lock *);
extern void locks_remove_posix(struct file *, fl_owner_t);
extern void locks_remove_file(struct file *);
extern void locks_release_private(struct file_lock *);
@@ -1026,7 +1026,7 @@ static inline void locks_init_lock(struct file_lock *fl)
return;
}
-static inline void __locks_copy_lock(struct file_lock *new, struct file_lock *fl)
+static inline void locks_copy_conflock(struct file_lock *new, struct file_lock *fl)
{
return;
}
--
cgit v1.2.1
From 5c97d7b1479982a48cf2129062b880c2555049ac Mon Sep 17 00:00:00 2001
From: Kinglong Mee <kinglongmee@gmail.com>
Date: Fri, 22 Aug 2014 10:18:43 -0400
Subject: locks: New ops in lock_manager_operations for get/put owner
NFSD or other lockmanager may increase the owner's reference,
so adds two new options for copying and releasing owner.
v5: change order from 2/6 to 3/6
v4: rename lm_copy_owner/lm_release_owner to lm_get_owner/lm_put_owner
Reviewed-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
include/linux/fs.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5ab86f44b697..3b07ce2698de 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -868,6 +868,8 @@ struct file_lock_operations {
struct lock_manager_operations {
int (*lm_compare_owner)(struct file_lock *, struct file_lock *);
unsigned long (*lm_owner_key)(struct file_lock *);
+ void (*lm_get_owner)(struct file_lock *, struct file_lock *);
+ void (*lm_put_owner)(struct file_lock *);
void (*lm_notify)(struct file_lock *); /* unblock callback */
int (*lm_grant)(struct file_lock *, int);
void (*lm_break)(struct file_lock *);
--
cgit v1.2.1
From 09802fd2a8caea2a2147fca8d7975697c5de573d Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 22 Aug 2014 10:18:44 -0400
Subject: lockd: rip out deferred lock handling from testlock codepath
As Kinglong points out, the nlm_block->b_fl field is no longer used at
all. Also, vfs_test_lock in the generic locking code will only return
FILE_LOCK_DEFERRED if FL_SLEEP is set, and it isn't here.
The only other place that returns that value is the DLM lock code, but
it only does that in dlm_posix_lock, never in dlm_posix_get.
Remove all of the deferred locking code from the testlock codepath
since it doesn't appear to ever be used anyway.
I do have a small concern that this might cause a behavior change in the
case where you have a block already sitting on the list when the
testlock request comes in, but that looks like it doesn't really work
properly anyway. I think it's best to just pass that down to
vfs_test_lock and let the filesystem report that instead of trying to
infer what's going on with the lock by looking at an existing block.
Cc: cluster-devel@redhat.com
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Kinglong Mee <kinglongmee@gmail.com>
---
include/linux/lockd/lockd.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 219d79627c05..ff82a32871b5 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -178,7 +178,6 @@ struct nlm_block {
unsigned char b_granted; /* VFS granted lock */
struct nlm_file * b_file; /* file in question */
struct cache_req * b_cache_req; /* deferred request handling */
- struct file_lock * b_fl; /* set for GETLK */
struct cache_deferred_req * b_deferred_req;
unsigned int b_flags; /* block flags */
#define B_QUEUED 1 /* lock queued */
--
cgit v1.2.1
From 699688a416524c3cea9eafaca69fc6c06c13c02e Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 22 Aug 2014 10:18:44 -0400
Subject: locks: remove lock_may_read and lock_may_write
There are no callers of these functions.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
include/linux/fs.h | 14 --------------
1 file changed, 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3b07ce2698de..458f733c96bd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -985,8 +985,6 @@ extern void lease_get_mtime(struct inode *, struct timespec *time);
extern int generic_setlease(struct file *, long, struct file_lock **);
extern int vfs_setlease(struct file *, long, struct file_lock **);
extern int lease_modify(struct file_lock **, int);
-extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
-extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
#else /* !CONFIG_FILE_LOCKING */
static inline int fcntl_getlk(struct file *file, unsigned int cmd,
struct flock __user *user)
@@ -1117,18 +1115,6 @@ static inline int lease_modify(struct file_lock **before, int arg)
{
return -EINVAL;
}
-
-static inline int lock_may_read(struct inode *inode, loff_t start,
- unsigned long len)
-{
- return 1;
-}
-
-static inline int lock_may_write(struct inode *inode, loff_t start,
- unsigned long len)
-{
- return 1;
-}
#endif /* !CONFIG_FILE_LOCKING */
--
cgit v1.2.1
From 1c994a0909a556508c2cc26ab5d9e13c5ce33aa0 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 27 Aug 2014 06:49:41 -0400
Subject: locks: consolidate "nolease" routines
GFS2 and NFS have setlease routines that always just return -EINVAL.
Turn that into a generic routine that can live in fs/libfs.c.
Cc: <linux-nfs@vger.kernel.org>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: <cluster-devel@redhat.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Acked-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 458f733c96bd..435e3d9ec5cf 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2599,6 +2599,7 @@ extern int simple_write_end(struct file *file, struct address_space *mapping,
struct page *page, void *fsdata);
extern int always_delete_dentry(const struct dentry *);
extern struct inode *alloc_anon_inode(struct super_block *);
+extern int simple_nosetlease(struct file *, long, struct file_lock **);
extern const struct dentry_operations simple_dentry_operations;
extern struct dentry *simple_lookup(struct inode *, struct dentry *, unsigned int flags);
--
cgit v1.2.1
From e0b93eddfe17dcb7d644eb5d6ad02a86fc41a977 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 22 Aug 2014 11:27:32 -0400
Subject: security: make security_file_set_fowner, f_setown and __f_setown void
return
security_file_set_fowner always returns 0, so make it f_setown and
__f_setown void return functions and fix up the error handling in the
callers.
Cc: linux-security-module@vger.kernel.org
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/fs.h | 4 ++--
include/linux/security.h | 8 ++++----
2 files changed, 6 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 435e3d9ec5cf..96528f73dda4 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1139,8 +1139,8 @@ extern void fasync_free(struct fasync_struct *);
/* can be called from interrupts */
extern void kill_fasync(struct fasync_struct **, int, int);
-extern int __f_setown(struct file *filp, struct pid *, enum pid_type, int force);
-extern int f_setown(struct file *filp, unsigned long arg, int force);
+extern void __f_setown(struct file *filp, struct pid *, enum pid_type, int force);
+extern void f_setown(struct file *filp, unsigned long arg, int force);
extern void f_delown(struct file *filp);
extern pid_t f_getown(struct file *filp);
extern int send_sigurg(struct fown_struct *fown);
diff --git a/include/linux/security.h b/include/linux/security.h
index 623f90e5f38d..b10e7af95d3b 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1559,7 +1559,7 @@ struct security_operations {
int (*file_lock) (struct file *file, unsigned int cmd);
int (*file_fcntl) (struct file *file, unsigned int cmd,
unsigned long arg);
- int (*file_set_fowner) (struct file *file);
+ void (*file_set_fowner) (struct file *file);
int (*file_send_sigiotask) (struct task_struct *tsk,
struct fown_struct *fown, int sig);
int (*file_receive) (struct file *file);
@@ -1834,7 +1834,7 @@ int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
unsigned long prot);
int security_file_lock(struct file *file, unsigned int cmd);
int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
-int security_file_set_fowner(struct file *file);
+void security_file_set_fowner(struct file *file);
int security_file_send_sigiotask(struct task_struct *tsk,
struct fown_struct *fown, int sig);
int security_file_receive(struct file *file);
@@ -2312,9 +2312,9 @@ static inline int security_file_fcntl(struct file *file, unsigned int cmd,
return 0;
}
-static inline int security_file_set_fowner(struct file *file)
+static inline void security_file_set_fowner(struct file *file)
{
- return 0;
+ return;
}
static inline int security_file_send_sigiotask(struct task_struct *tsk,
--
cgit v1.2.1
From 2ae4c673e3cbd69bc2decf6d7f5961f3c7b9b38b Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Tue, 2 Sep 2014 15:43:52 -0700
Subject: f2fs: retain inconsistency information to initiate fsck.f2fs
This patch adds sbi->need_fsck to conduct fsck.f2fs later.
This flag can only be removed by fsck.f2fs.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
include/linux/f2fs_fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 08ed2b0a96e6..9ca1ff3d4662 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -85,6 +85,7 @@ struct f2fs_super_block {
/*
* For checkpoint
*/
+#define CP_FSCK_FLAG 0x00000010
#define CP_ERROR_FLAG 0x00000008
#define CP_COMPACT_SUM_FLAG 0x00000004
#define CP_ORPHAN_PRESENT_FLAG 0x00000002
--
cgit v1.2.1
From a8a76f563cfa1a4e47b6d8b2bef9c0d44a3fd7b0 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Mon, 18 Aug 2014 10:32:59 +0200
Subject: clk: max77686: Add DT include for MAX77686 PMIC clock
This patch adds a dt-binding include for Maxim 77686
PMIC clock IDs that can be used by both the max77686
clock driver and Device Tree source files.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/maxim,max77686.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 include/dt-bindings/clock/maxim,max77686.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/maxim,max77686.h b/include/dt-bindings/clock/maxim,max77686.h
new file mode 100644
index 000000000000..7b28b0905869
--- /dev/null
+++ b/include/dt-bindings/clock/maxim,max77686.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2014 Google, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Device Tree binding constants clocks for the Maxim 77686 PMIC.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MAXIM_MAX77686_CLOCK_H
+#define _DT_BINDINGS_CLOCK_MAXIM_MAX77686_CLOCK_H
+
+/* Fixed rate clocks. */
+
+#define MAX77686_CLK_AP 0
+#define MAX77686_CLK_CP 1
+#define MAX77686_CLK_PMIC 2
+
+/* Total number of clocks. */
+#define MAX77686_CLKS_NUM (MAX77686_CLK_PMIC + 1)
+
+#endif /* _DT_BINDINGS_CLOCK_MAXIM_MAX77686_CLOCK_H */
--
cgit v1.2.1
From 83ccf16cb9247b6b657637c31e4c2035fe64ae64 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Mon, 18 Aug 2014 10:33:03 +0200
Subject: clk: Add driver for Maxim 77802 PMIC clocks
The MAX77802 PMIC has two 32.768kHz Buffered Clock Outputs with
Low Jitter Mode. This patch adds support for these two clocks.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/maxim,max77802.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 include/dt-bindings/clock/maxim,max77802.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/maxim,max77802.h b/include/dt-bindings/clock/maxim,max77802.h
new file mode 100644
index 000000000000..997312edcbb5
--- /dev/null
+++ b/include/dt-bindings/clock/maxim,max77802.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2014 Google, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Device Tree binding constants clocks for the Maxim 77802 PMIC.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MAXIM_MAX77802_CLOCK_H
+#define _DT_BINDINGS_CLOCK_MAXIM_MAX77802_CLOCK_H
+
+/* Fixed rate clocks. */
+
+#define MAX77802_CLK_32K_AP 0
+#define MAX77802_CLK_32K_CP 1
+
+/* Total number of clocks. */
+#define MAX77802_CLKS_NUM (MAX77802_CLK_32K_CP + 1)
+
+#endif /* _DT_BINDINGS_CLOCK_MAXIM_MAX77802_CLOCK_H */
--
cgit v1.2.1
From 87354059881ce9315181604dc17076c535f4d744 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Tue, 22 Jul 2014 20:41:42 -0400
Subject: ftrace: Add helper function ftrace_ops_get_func()
Add the helper function to what the mcount trampoline is to call
for a ftrace_ops function. This helper will be used by arch code
in the future to set up dynamic trampolines. But as this does the
same tests that are performed in choosing what function to call for
the default mcount trampoline, might as well use it to clean up
the existing code.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index f0b0edbf55a9..ef37286547fc 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -56,6 +56,8 @@ struct ftrace_ops;
typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *op, struct pt_regs *regs);
+ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops);
+
/*
* FTRACE_OPS_FL_* bits denote the state of ftrace_ops struct and are
* set in the flags member.
--
cgit v1.2.1
From 738cbe72adc5c8f2016c4c68aa5162631d4f27e1 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 8 Sep 2014 08:04:47 +0200
Subject: net: bpf: consolidate JIT binary allocator
Introduced in commit 314beb9bcabf ("x86: bpf_jit_comp: secure bpf jit
against spraying attacks") and later on replicated in aa2d2c73c21f
("s390/bpf,jit: address randomize and write protect jit code") for
s390 architecture, write protection for BPF JIT images got added and
a random start address of the JIT code, so that it's not on a page
boundary anymore.
Since both use a very similar allocator for the BPF binary header,
we can consolidate this code into the BPF core as it's mostly JIT
independant anyway.
This will also allow for future archs that support DEBUG_SET_MODULE_RONX
to just reuse instead of reimplementing it.
JIT tested on x86_64 and s390x with BPF test suite.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/filter.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 8f82ef3f1cdd..868764fcffb8 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -289,6 +289,11 @@ struct sock_fprog_kern {
struct sock_filter *filter;
};
+struct bpf_binary_header {
+ unsigned int pages;
+ u8 image[];
+};
+
struct bpf_work_struct {
struct bpf_prog *prog;
struct work_struct work;
@@ -358,6 +363,14 @@ struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size,
gfp_t gfp_extra_flags);
void __bpf_prog_free(struct bpf_prog *fp);
+typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size);
+
+struct bpf_binary_header *
+bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
+ unsigned int alignment,
+ bpf_jit_fill_hole_t bpf_fill_ill_insns);
+void bpf_jit_binary_free(struct bpf_binary_header *hdr);
+
static inline void bpf_prog_unlock_free(struct bpf_prog *fp)
{
bpf_prog_unlock_ro(fp);
--
cgit v1.2.1
From 286aad3c4014ca825c447e07e24f8929e6d266d2 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 8 Sep 2014 08:04:49 +0200
Subject: net: bpf: be friendly to kmemcheck
Reported by Mikulas Patocka, kmemcheck currently barks out a
false positive since we don't have special kmemcheck annotation
for bitfields used in bpf_prog structure.
We currently have jited:1, len:31 and thus when accessing len
while CONFIG_KMEMCHECK enabled, kmemcheck throws a warning that
we're reading uninitialized memory.
As we don't need the whole bit universe for pages member, we
can just split it to u16 and use a bool flag for jited instead
of a bitfield.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/filter.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 868764fcffb8..4b59edead908 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -300,9 +300,9 @@ struct bpf_work_struct {
};
struct bpf_prog {
- u32 pages; /* Number of allocated pages */
- u32 jited:1, /* Is our filter JIT'ed? */
- len:31; /* Number of filter blocks */
+ u16 pages; /* Number of allocated pages */
+ bool jited; /* Is our filter JIT'ed? */
+ u32 len; /* Number of filter blocks */
struct sock_fprog_kern *orig_prog; /* Original BPF program */
struct bpf_work_struct *work; /* Deferred free work struct */
unsigned int (*bpf_func)(const struct sk_buff *skb,
--
cgit v1.2.1
From 67cc0d4077951295f42bed63805e91b46c24477b Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Mon, 8 Sep 2014 19:58:58 -0400
Subject: net-timestamp: optimize sock_tx_timestamp default path
Few packets have timestamping enabled. Exit sock_tx_timestamp quickly
in this common case.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sock.h | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index 049ab1b732a6..515a4d01e932 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2199,6 +2199,8 @@ static inline void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
sk->sk_stamp = skb->tstamp;
}
+void __sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags);
+
/**
* sock_tx_timestamp - checks whether the outgoing packet is to be time stamped
* @sk: socket sending this packet
@@ -2206,7 +2208,13 @@ static inline void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
*
* Note : callers should take care of initial *tx_flags value (usually 0)
*/
-void sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags);
+static inline void sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags)
+{
+ if (unlikely(sk->sk_tsflags))
+ __sock_tx_timestamp(sk, tx_flags);
+ if (unlikely(sock_flag(sk, SOCK_WIFI_STATUS)))
+ *tx_flags |= SKBTX_WIFI_STATUS;
+}
/**
* sk_eat_skb - Release a skb if it is no longer needed
--
cgit v1.2.1
From 9f50bd8905ab12e3e8ebffd8296d7921bd3976eb Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:27 +0200
Subject: drm/radeon: move drm_buffer to drm/radeon/
Radeon UMS is the last user of drm_buffer. Move it out of sight so radeon
can drop it together with UMS.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_buffer.h | 148 -----------------------------------------------
1 file changed, 148 deletions(-)
delete mode 100644 include/drm/drm_buffer.h
(limited to 'include')
diff --git a/include/drm/drm_buffer.h b/include/drm/drm_buffer.h
deleted file mode 100644
index c80d3a340b94..000000000000
--- a/include/drm/drm_buffer.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2010 Pauli Nieminen.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- *
- **************************************************************************/
-/*
- * Multipart buffer for coping data which is larger than the page size.
- *
- * Authors:
- * Pauli Nieminen <suokkos-at-gmail-dot-com>
- */
-
-#ifndef _DRM_BUFFER_H_
-#define _DRM_BUFFER_H_
-
-#include <drm/drmP.h>
-
-struct drm_buffer {
- int iterator;
- int size;
- char *data[];
-};
-
-
-/**
- * Return the index of page that buffer is currently pointing at.
- */
-static inline int drm_buffer_page(struct drm_buffer *buf)
-{
- return buf->iterator / PAGE_SIZE;
-}
-/**
- * Return the index of the current byte in the page
- */
-static inline int drm_buffer_index(struct drm_buffer *buf)
-{
- return buf->iterator & (PAGE_SIZE - 1);
-}
-/**
- * Return number of bytes that is left to process
- */
-static inline int drm_buffer_unprocessed(struct drm_buffer *buf)
-{
- return buf->size - buf->iterator;
-}
-
-/**
- * Advance the buffer iterator number of bytes that is given.
- */
-static inline void drm_buffer_advance(struct drm_buffer *buf, int bytes)
-{
- buf->iterator += bytes;
-}
-
-/**
- * Allocate the drm buffer object.
- *
- * buf: A pointer to a pointer where the object is stored.
- * size: The number of bytes to allocate.
- */
-extern int drm_buffer_alloc(struct drm_buffer **buf, int size);
-
-/**
- * Copy the user data to the begin of the buffer and reset the processing
- * iterator.
- *
- * user_data: A pointer the data that is copied to the buffer.
- * size: The Number of bytes to copy.
- */
-extern int drm_buffer_copy_from_user(struct drm_buffer *buf,
- void __user *user_data, int size);
-
-/**
- * Free the drm buffer object
- */
-extern void drm_buffer_free(struct drm_buffer *buf);
-
-/**
- * Read an object from buffer that may be split to multiple parts. If object
- * is not split function just returns the pointer to object in buffer. But in
- * case of split object data is copied to given stack object that is suplied
- * by caller.
- *
- * The processing location of the buffer is also advanced to the next byte
- * after the object.
- *
- * objsize: The size of the objet in bytes.
- * stack_obj: A pointer to a memory location where object can be copied.
- */
-extern void *drm_buffer_read_object(struct drm_buffer *buf,
- int objsize, void *stack_obj);
-
-/**
- * Returns the pointer to the dword which is offset number of elements from the
- * current processing location.
- *
- * Caller must make sure that dword is not split in the buffer. This
- * requirement is easily met if all the sizes of objects in buffer are
- * multiples of dword and PAGE_SIZE is multiple dword.
- *
- * Call to this function doesn't change the processing location.
- *
- * offset: The index of the dword relative to the internat iterator.
- */
-static inline void *drm_buffer_pointer_to_dword(struct drm_buffer *buffer,
- int offset)
-{
- int iter = buffer->iterator + offset * 4;
- return &buffer->data[iter / PAGE_SIZE][iter & (PAGE_SIZE - 1)];
-}
-/**
- * Returns the pointer to the dword which is offset number of elements from
- * the current processing location.
- *
- * Call to this function doesn't change the processing location.
- *
- * offset: The index of the byte relative to the internat iterator.
- */
-static inline void *drm_buffer_pointer_to_byte(struct drm_buffer *buffer,
- int offset)
-{
- int iter = buffer->iterator + offset;
- return &buffer->data[iter / PAGE_SIZE][iter & (PAGE_SIZE - 1)];
-}
-
-#endif
--
cgit v1.2.1
From 9fc5cde7fb6699b0a75e90b7cbfee7c912dd94c2 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:28 +0200
Subject: drm: mark drm_buf and drm_map as legacy
Move internal declarations to drm_legacy.h and add drm_legacy_*() prefix
to all legacy functions.
[airlied: add a bit of an explaination to drm_legacy.h]
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 41 ++++++++++++-----------------------------
1 file changed, 12 insertions(+), 29 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 6b4fbf3a3263..cea7911265a3 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -153,8 +153,6 @@ int drm_err(const char *func, const char *format, ...);
#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
-#define DRM_MAP_HASH_OFFSET 0x10000000
-
/*@}*/
/***********************************************************************/
@@ -1243,31 +1241,6 @@ extern void drm_idlelock_release(struct drm_lock_data *lock_data);
extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
- /* Buffer management support (drm_bufs.h) */
-extern int drm_addbufs_agp(struct drm_device *dev, struct drm_buf_desc * request);
-extern int drm_addbufs_pci(struct drm_device *dev, struct drm_buf_desc * request);
-extern int drm_addmap(struct drm_device *dev, resource_size_t offset,
- unsigned int size, enum drm_map_type type,
- enum drm_map_flags flags, struct drm_local_map **map_ptr);
-extern int drm_addmap_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_rmmap(struct drm_device *dev, struct drm_local_map *map);
-extern int drm_rmmap_locked(struct drm_device *dev, struct drm_local_map *map);
-extern int drm_rmmap_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_addbufs(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_infobufs(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_markbufs(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_freebufs(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_mapbufs(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_dma_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-
/* DMA support (drm_dma.h) */
extern int drm_legacy_dma_setup(struct drm_device *dev);
extern void drm_legacy_dma_takedown(struct drm_device *dev);
@@ -1354,8 +1327,6 @@ extern unsigned int drm_timestamp_monotonic;
extern struct class *drm_class;
-extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
-
/* Debugfs support */
#if defined(CONFIG_DEBUG_FS)
extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
@@ -1466,6 +1437,18 @@ extern int drm_pci_set_unique(struct drm_device *dev,
struct drm_master *master,
struct drm_unique *u);
+ /* Legacy Support */
+
+int drm_legacy_addmap(struct drm_device *d, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags, struct drm_local_map **map_p);
+int drm_legacy_rmmap(struct drm_device *d, struct drm_local_map *map);
+int drm_legacy_rmmap_locked(struct drm_device *d, struct drm_local_map *map);
+struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev);
+
+int drm_legacy_addbufs_agp(struct drm_device *d, struct drm_buf_desc *req);
+int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
+
/* sysfs support (drm_sysfs.c) */
struct drm_sysfs_class;
extern struct class *drm_sysfs_create(struct module *owner, char *name);
--
cgit v1.2.1
From 03decbe57ac6c9e632f7cde0f7d0a54bbcaf8464 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:29 +0200
Subject: drm: move "struct drm_vma_entry" to drm_vm.c
Make all the drm_vma_entry handling local to drm_vm.c and hide it from
global headers. This requires to extract the inlined legacy drm_vma_entry
cleanup into a small helper and also move a weirdly placed drm_vma_info
helper into drm_vm.c.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index cea7911265a3..11c357534581 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -296,12 +296,6 @@ struct drm_magic_entry {
struct drm_file *priv;
};
-struct drm_vma_entry {
- struct list_head head;
- struct vm_area_struct *vma;
- pid_t pid;
-};
-
/**
* DMA buffer.
*/
@@ -1449,6 +1443,8 @@ struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev);
int drm_legacy_addbufs_agp(struct drm_device *d, struct drm_buf_desc *req);
int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
+void drm_legacy_vma_flush(struct drm_device *d);
+
/* sysfs support (drm_sysfs.c) */
struct drm_sysfs_class;
extern struct class *drm_sysfs_create(struct module *owner, char *name);
--
cgit v1.2.1
From 71d39483de474d9513e23d9e21af7483684f4745 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:30 +0200
Subject: drm: move "struct drm_magic_entry" to drm_auth.c
In drm_release(), we currently call drm_remove_magic() if the drm_file
has a drm-magic attached. Therefore, once drm_master_release() is called,
the magic-list _must_ be empty.
By dropping the no-op cleanup, we can move "struct drm_magic_entry" to
drm_auth.c and avoid exposing it to all of DRM.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 6 ------
1 file changed, 6 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 11c357534581..0fdd813821cd 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -290,12 +290,6 @@ struct drm_ioctl_desc {
#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
[DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl}
-struct drm_magic_entry {
- struct list_head head;
- struct drm_hash_item hash_item;
- struct drm_file *priv;
-};
-
/**
* DMA buffer.
*/
--
cgit v1.2.1
From cc33db0a6108d41b94eba0d84b0627cc52585109 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:31 +0200
Subject: drm: drop unused "struct drm_waitlist"
This structure is unused, drop it.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 11 -----------
1 file changed, 11 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 0fdd813821cd..0bf66f907f25 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -320,17 +320,6 @@ struct drm_buf {
void *dev_private; /**< Per-buffer private storage */
};
-/** bufs is one longer than it has to be */
-struct drm_waitlist {
- int count; /**< Number of possible buffers */
- struct drm_buf **bufs; /**< List of pointers to buffers */
- struct drm_buf **rp; /**< Read pointer */
- struct drm_buf **wp; /**< Write pointer */
- struct drm_buf **end; /**< End pointer */
- spinlock_t read_lock;
- spinlock_t write_lock;
-};
-
typedef struct drm_dma_handle {
dma_addr_t busaddr;
void *vaddr;
--
cgit v1.2.1
From cc5ea5947a52b98cd9a03d4011a5a12b4e5a99c4 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:32 +0200
Subject: drm: move AGP definitions harder
Move drm_agp_head to drm_agpsupport.h and drm_agp_mem into drm_legacy.h.
Unfortunately, drivers still heavily access drm_agp_head so we cannot
move it to drm_legacy.h. However, at least it's no longer visible in
drmP.h now (it's directly included from it, though).
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 30 +-----------------------------
include/drm/drm_agpsupport.h | 13 +++++++++++++
2 files changed, 14 insertions(+), 29 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 0bf66f907f25..7a3c73c5375d 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -80,6 +80,7 @@ struct module;
struct drm_file;
struct drm_device;
+struct drm_agp_head;
struct device_node;
struct videomode;
@@ -439,35 +440,6 @@ struct drm_device_dma {
};
-/**
- * AGP memory entry. Stored as a doubly linked list.
- */
-struct drm_agp_mem {
- unsigned long handle; /**< handle */
- struct agp_memory *memory;
- unsigned long bound; /**< address */
- int pages;
- struct list_head head;
-};
-
-/**
- * AGP data.
- *
- * \sa drm_agp_init() and drm_device::agp.
- */
-struct drm_agp_head {
- struct agp_kern_info agp_info; /**< AGP device information */
- struct list_head memory;
- unsigned long mode; /**< AGP mode */
- struct agp_bridge_data *bridge;
- int enabled; /**< whether the AGP bus as been enabled */
- int acquired; /**< whether the AGP device has been acquired */
- unsigned long base;
- int agp_mtrr;
- int cant_use_aperture;
- unsigned long page_mask;
-};
-
/**
* Scatter-gather memory.
*/
diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h
index 86a02188074b..3bebeb4af864 100644
--- a/include/drm/drm_agpsupport.h
+++ b/include/drm/drm_agpsupport.h
@@ -8,6 +8,19 @@
#include <linux/agp_backend.h>
#include <drm/drmP.h>
+struct drm_agp_head {
+ struct agp_kern_info agp_info;
+ struct list_head memory;
+ unsigned long mode;
+ struct agp_bridge_data *bridge;
+ int enabled;
+ int acquired;
+ unsigned long base;
+ int agp_mtrr;
+ int cant_use_aperture;
+ unsigned long page_mask;
+};
+
#if __OS_HAS_AGP
void drm_free_agp(struct agp_memory * handle, int pages);
--
cgit v1.2.1
From 2791ee85e1e9805d600782e554f706458ec6c84e Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:33 +0200
Subject: drm: replace weird conditional includes
pte_wrprotect() is only used by drm_vm.c, so move the include there. Also
include it unconditionally, all architectures provide this header!
Furthermore, replace asm/current.h with sched.h, which includes
asm/current.h unconditionally. This way we get the same effect and avoid
direct asm/ includes. Furthermore, drop the weird __alpha__ protection.
It's safe to include sched.h everywhere (and the wait.h comment doesn't
apply, anyway).
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 7a3c73c5375d..31fb30047770 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -36,12 +36,7 @@
#define _DRM_P_H_
#ifdef __KERNEL__
-#ifdef __alpha__
-/* add include of current.h so that "current" is defined
- * before static inline funcs in wait.h. Doing this so we
- * can build the DRM (part of PI DRI). 4/21/2000 S + B */
-#include <asm/current.h>
-#endif /* __alpha__ */
+#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/kref.h>
#include <linux/miscdevice.h>
@@ -58,9 +53,6 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/ratelimit.h>
-#if defined(__alpha__) || defined(__powerpc__)
-#include <asm/pgtable.h> /* For pte_wrprotect */
-#endif
#include <asm/mman.h>
#include <asm/uaccess.h>
#include <linux/types.h>
--
cgit v1.2.1
From 32abc552bc869edcfa7b1c6ee365e0b58a134ec6 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:34 +0200
Subject: drm: drop __KERNEL__ protection in drmP.h
drmP.h is internal to the kernel. No need to keep the __KERNEL__
protection.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 31fb30047770..d3504c6ff15e 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -35,7 +35,6 @@
#ifndef _DRM_P_H_
#define _DRM_P_H_
-#ifdef __KERNEL__
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/kref.h>
@@ -1544,5 +1543,4 @@ static __inline__ bool drm_can_sleep(void)
return true;
}
-#endif /* __KERNEL__ */
#endif
--
cgit v1.2.1
From d6db6564457c5ad617c3bcf44bed58a227f4c702 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:35 +0200
Subject: drm: merge drm_memory.h into drm_memory.c
The drm_memory.h header is only used to define PAGE_AGP, which is only
used in drm_memory.c. Fold the header into drm_memory.c and drop it.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 6 ++---
include/drm/drm_memory.h | 59 ------------------------------------------------
2 files changed, 2 insertions(+), 63 deletions(-)
delete mode 100644 include/drm/drm_memory.h
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d3504c6ff15e..294f7daf543e 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -58,6 +58,8 @@
#include <linux/agp_backend.h>
#include <linux/workqueue.h>
#include <linux/poll.h>
+#include <linux/highmem.h>
+#include <linux/vmalloc.h>
#include <asm/pgalloc.h>
#include <drm/drm.h>
#include <drm/drm_sarea.h>
@@ -1127,10 +1129,6 @@ extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vm
extern void drm_vm_close_locked(struct drm_device *dev, struct vm_area_struct *vma);
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
- /* Memory management support (drm_memory.h) */
-#include <drm/drm_memory.h>
-
-
/* Misc. IOCTL support (drm_ioctl.h) */
extern int drm_irq_by_busid(struct drm_device *dev, void *data,
struct drm_file *file_priv);
diff --git a/include/drm/drm_memory.h b/include/drm/drm_memory.h
deleted file mode 100644
index 4baf57a207e7..000000000000
--- a/include/drm/drm_memory.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/**
- * \file drm_memory.h
- * Memory management wrappers for DRM
- *
- * \author Rickard E. (Rik) Faith <faith@valinux.com>
- * \author Gareth Hughes <gareth@valinux.com>
- */
-
-/*
- * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
- *
- * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <linux/highmem.h>
-#include <linux/vmalloc.h>
-#include <drm/drmP.h>
-
-/**
- * Cut down version of drm_memory_debug.h, which used to be called
- * drm_memory.h.
- */
-
-#if __OS_HAS_AGP
-
-#ifdef HAVE_PAGE_AGP
-#include <asm/agp.h>
-#else
-# ifdef __powerpc__
-# define PAGE_AGP __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
-# else
-# define PAGE_AGP PAGE_KERNEL
-# endif
-#endif
-
-#else /* __OS_HAS_AGP */
-
-#endif
--
cgit v1.2.1
From 71930d74e4ad5b2cddc03e0a47ad0cc7ba51845c Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:36 +0200
Subject: drm: move __OS_HAS_AGP into drm_agpsupport.h
With drm_memory.h gone, there is no header left that uses __OS_HAS_AGP.
Move it into drm_agpsupport.h (which is itself included from drmP.h) to
hide it harder from public eyes.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 2 --
include/drm/drm_agpsupport.h | 3 +++
2 files changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 294f7daf543e..c6f337c54d9f 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -67,8 +67,6 @@
#include <linux/idr.h>
-#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
-
struct module;
struct drm_file;
diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h
index 3bebeb4af864..4f1724c7ba8c 100644
--- a/include/drm/drm_agpsupport.h
+++ b/include/drm/drm_agpsupport.h
@@ -8,6 +8,9 @@
#include <linux/agp_backend.h>
#include <drm/drmP.h>
+#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && \
+ defined(MODULE)))
+
struct drm_agp_head {
struct agp_kern_info agp_info;
struct list_head memory;
--
cgit v1.2.1
From 969939087da7aca386ff166a1c67ee9707215feb Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:37 +0200
Subject: drm: order includes alphabetically in drmP.h
It is hardly possible to review the drmP.h includes, anymore. Order them
alphabetically, linux/ first, then asm/ and then local drm/ includes.
Since a long time ago, kernel headers have been converted to include
required headers themselves. No-one cares whether that means the compiler
has to include a header multiple times. In fact, GCC already does some
optimization regarding multiple inclusions if a sorrounding #ifndef is
present.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 46 +++++++++++++++++++++++-----------------------
1 file changed, 23 insertions(+), 23 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index c6f337c54d9f..8b3f3b7dc2f2 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -35,38 +35,42 @@
#ifndef _DRM_P_H_
#define _DRM_P_H_
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/kref.h>
-#include <linux/miscdevice.h>
+#include <linux/agp_backend.h>
+#include <linux/cdev.h>
+#include <linux/dma-mapping.h>
+#include <linux/file.h>
#include <linux/fs.h>
+#include <linux/highmem.h>
+#include <linux/idr.h>
#include <linux/init.h>
-#include <linux/file.h>
-#include <linux/platform_device.h>
-#include <linux/pci.h>
+#include <linux/io.h>
#include <linux/jiffies.h>
-#include <linux/dma-mapping.h>
+#include <linux/kernel.h>
+#include <linux/kref.h>
+#include <linux/miscdevice.h>
#include <linux/mm.h>
-#include <linux/cdev.h>
#include <linux/mutex.h>
-#include <linux/io.h>
-#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/poll.h>
#include <linux/ratelimit.h>
-#include <asm/mman.h>
-#include <asm/uaccess.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/types.h>
-#include <linux/agp_backend.h>
-#include <linux/workqueue.h>
-#include <linux/poll.h>
-#include <linux/highmem.h>
#include <linux/vmalloc.h>
+#include <linux/workqueue.h>
+
+#include <asm/mman.h>
#include <asm/pgalloc.h>
+#include <asm/uaccess.h>
+
#include <drm/drm.h>
+#include <drm/drm_hashtab.h>
+#include <drm/drm_mm.h>
+#include <drm/drm_os_linux.h>
#include <drm/drm_sarea.h>
#include <drm/drm_vma_manager.h>
-#include <linux/idr.h>
-
struct module;
struct drm_file;
@@ -77,10 +81,6 @@ struct device_node;
struct videomode;
struct reservation_object;
-#include <drm/drm_os_linux.h>
-#include <drm/drm_hashtab.h>
-#include <drm/drm_mm.h>
-
/*
* 4 debug categories are defined:
*
--
cgit v1.2.1
From edf0ac7c67ce596f43d66a781660889bbdcc9505 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:38 +0200
Subject: drm: drop DRM_DEBUG_CODE
DRM_DEBUG_CODE is currently always set, so distributions enable it. The
only reason to keep support in code is if developers wanted to disable
debug support. Sounds unlikely.
All the DRM_DEBUG() printks are still guarded by a drm_debug read. So if
its cacheline is read once, they're discarded pretty fast.. There should
hardly be any performance penalty, it's even guarded by unlikely().
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 12 ------------
1 file changed, 12 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 8b3f3b7dc2f2..8f55875dafbb 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -140,9 +140,6 @@ int drm_err(const char *func, const char *format, ...);
/** \name Begin the DRM... */
/*@{*/
-#define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
- also include looping detection. */
-
#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
/*@}*/
@@ -188,7 +185,6 @@ int drm_err(const char *func, const char *format, ...);
* \param fmt printf() like format string.
* \param arg arguments
*/
-#if DRM_DEBUG_CODE
#define DRM_DEBUG(fmt, args...) \
do { \
if (unlikely(drm_debug & DRM_UT_CORE)) \
@@ -210,12 +206,6 @@ int drm_err(const char *func, const char *format, ...);
if (unlikely(drm_debug & DRM_UT_PRIME)) \
drm_ut_debug_printk(__func__, fmt, ##args); \
} while (0)
-#else
-#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
-#define DRM_DEBUG_KMS(fmt, args...) do { } while (0)
-#define DRM_DEBUG_PRIME(fmt, args...) do { } while (0)
-#define DRM_DEBUG(fmt, arg...) do { } while (0)
-#endif
/*@}*/
@@ -1348,9 +1338,7 @@ void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
-#if DRM_DEBUG_CODE
extern int drm_vma_info(struct seq_file *m, void *data);
-#endif
/* Scatter Gather Support (drm_scatter.h) */
extern void drm_legacy_sg_cleanup(struct drm_device *dev);
--
cgit v1.2.1
From 69d516c0a990b42c4d55f7631fa28cc41bfcc8f0 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:39 +0200
Subject: drm: inline "struct drm_sigdata"
The sigdata structure is only used to group two fields in drm_device.
Inline it and make it an unnamed object.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 8f55875dafbb..840a3735d3da 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -432,12 +432,6 @@ struct drm_sg_mem {
dma_addr_t *busaddr;
};
-struct drm_sigdata {
- int context;
- struct drm_hw_lock *lock;
-};
-
-
/**
* Kernel side of a mapping
*/
@@ -1035,9 +1029,13 @@ struct drm_device {
struct drm_sg_mem *sg; /**< Scatter gather memory */
unsigned int num_crtcs; /**< Number of CRTCs on this device */
- struct drm_sigdata sigdata; /**< For block_all_signals */
sigset_t sigmask;
+ struct {
+ int context;
+ struct drm_hw_lock *lock;
+ } sigdata;
+
struct drm_local_map *agp_buffer_map;
unsigned int agp_buffer_token;
--
cgit v1.2.1
From d7d2c48e5cfe27dc7378e48d4f22efcf417317d9 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:40 +0200
Subject: drm: move remaining includes in drmP.h to the top
Including headers somewhere else but at the top is ugly, deprecated and
was used in early days only to speed up compile-times. Those days are
over. Make headers independent and then move the inclusions to the top.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 31 ++++++++++++-------------------
include/drm/drm_agpsupport.h | 10 ++++++++--
include/drm/drm_crtc.h | 4 ++--
3 files changed, 22 insertions(+), 23 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 840a3735d3da..a8b24fcddb8c 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1,17 +1,14 @@
-/**
- * \file drmP.h
- * Private header for Direct Rendering Manager
- *
- * \author Rickard E. (Rik) Faith <faith@valinux.com>
- * \author Gareth Hughes <gareth@valinux.com>
- */
-
/*
+ * Internal Header for the Direct Rendering Manager
+ *
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* Copyright (c) 2009-2010, Code Aurora Forum.
* All rights reserved.
*
+ * Author: Rickard E. (Rik) Faith <faith@valinux.com>
+ * Author: Gareth Hughes <gareth@valinux.com>
+ *
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
@@ -64,8 +61,14 @@
#include <asm/pgalloc.h>
#include <asm/uaccess.h>
-#include <drm/drm.h>
+#include <uapi/drm/drm.h>
+#include <uapi/drm/drm_mode.h>
+
+#include <drm/drm_agpsupport.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_global.h>
#include <drm/drm_hashtab.h>
+#include <drm/drm_mem_util.h>
#include <drm/drm_mm.h>
#include <drm/drm_os_linux.h>
#include <drm/drm_sarea.h>
@@ -564,8 +567,6 @@ struct drm_gem_object {
struct dma_buf_attachment *import_attach;
};
-#include <drm/drm_crtc.h>
-
/**
* struct drm_master - drm master structure
*
@@ -1228,10 +1229,6 @@ extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
extern int drm_modeset_ctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
- /* AGP/GART support (drm_agpsupport.h) */
-
-#include <drm/drm_agpsupport.h>
-
/* Stub support (drm_stub.h) */
extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
@@ -1397,8 +1394,6 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
struct vm_area_struct *vma);
int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
-#include <drm/drm_global.h>
-
static inline void
drm_gem_object_reference(struct drm_gem_object *obj)
{
@@ -1472,8 +1467,6 @@ static __inline__ void drm_core_dropmap(struct drm_local_map *map)
{
}
-#include <drm/drm_mem_util.h>
-
struct drm_device *drm_dev_alloc(struct drm_driver *driver,
struct device *parent);
void drm_dev_ref(struct drm_device *dev);
diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h
index 4f1724c7ba8c..055dc058d147 100644
--- a/include/drm/drm_agpsupport.h
+++ b/include/drm/drm_agpsupport.h
@@ -1,12 +1,16 @@
#ifndef _DRM_AGPSUPPORT_H_
#define _DRM_AGPSUPPORT_H_
+#include <linux/agp_backend.h>
#include <linux/kernel.h>
+#include <linux/list.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <linux/types.h>
-#include <linux/agp_backend.h>
-#include <drm/drmP.h>
+#include <uapi/drm/drm.h>
+
+struct drm_device;
+struct drm_file;
#define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && \
defined(MODULE)))
@@ -61,6 +65,7 @@ int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
+
#else /* __OS_HAS_AGP */
static inline void drm_free_agp(struct agp_memory * handle, int pages)
@@ -188,6 +193,7 @@ static inline int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
{
return -ENODEV;
}
+
#endif /* __OS_HAS_AGP */
#endif /* _DRM_AGPSUPPORT_H_ */
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 31344bf7887e..c40070a92d6b 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -31,8 +31,8 @@
#include <linux/idr.h>
#include <linux/fb.h>
#include <linux/hdmi.h>
-#include <drm/drm_mode.h>
-#include <drm/drm_fourcc.h>
+#include <uapi/drm/drm_mode.h>
+#include <uapi/drm/drm_fourcc.h>
#include <drm/drm_modeset_lock.h>
struct drm_device;
--
cgit v1.2.1
From 1e444be0ef1bda2b180ecdedfa4c5d32bf236a5d Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:42 +0200
Subject: drm: drop unused drm_master->unique_size
This field is unused and there is really no reason to optimize
unique-allocations. Drop it.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index a8b24fcddb8c..98b1eafebc1c 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -574,7 +574,6 @@ struct drm_gem_object {
* @minor: Link back to minor char device we are master for. Immutable.
* @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex.
* @unique_len: Length of unique field. Protected by drm_global_mutex.
- * @unique_size: Amount allocated. Protected by drm_global_mutex.
* @magiclist: Hash of used authentication tokens. Protected by struct_mutex.
* @magicfree: List of used authentication tokens. Protected by struct_mutex.
* @lock: DRI lock information.
@@ -585,7 +584,6 @@ struct drm_master {
struct drm_minor *minor;
char *unique;
int unique_len;
- int unique_size;
struct drm_open_hash magiclist;
struct list_head magicfree;
struct drm_lock_data lock;
--
cgit v1.2.1
From 915b4d11b8b9e7b84ba4a4645b6cc7fbc0c071cf Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:43 +0200
Subject: drm: add driver->set_busid() callback
One step closer to dropping all the drm_bus_* code:
Add a driver->set_busid() callback and make all drivers use the generic
helpers. Nouveau is the only driver that uses two different bus-types with
the same drm_driver. This is totally broken if both buses are available on
the same machine (unlikely, but lets be safe). Therefore, we create two
different drivers for each platform during module_init() and set the
set_busid() callback respectively.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 98b1eafebc1c..c82f292efcd4 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -627,6 +627,7 @@ struct drm_driver {
int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
int (*dma_quiescent) (struct drm_device *);
int (*context_dtor) (struct drm_device *dev, int context);
+ int (*set_busid)(struct drm_device *dev, struct drm_master *master);
/**
* get_vblank_counter - get raw hardware vblank counter
@@ -1498,6 +1499,7 @@ extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);
extern int drm_get_pci_dev(struct pci_dev *pdev,
const struct pci_device_id *ent,
struct drm_driver *driver);
+extern int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
#define DRM_PCIE_SPEED_25 1
#define DRM_PCIE_SPEED_50 2
@@ -1507,6 +1509,7 @@ extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
/* platform section */
extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device);
+extern int drm_platform_set_busid(struct drm_device *d, struct drm_master *m);
/* returns true if currently okay to sleep */
static __inline__ bool drm_can_sleep(void)
--
cgit v1.2.1
From c5786fe5f1c50941dbe27fc8b4aa1afee46ae893 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:44 +0200
Subject: drm: Goody bye, drm_bus!
..we will not miss you..
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index c82f292efcd4..5ae388a9bb98 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -605,10 +605,6 @@ struct drm_master {
#define DRM_SCANOUTPOS_INVBL (1 << 1)
#define DRM_SCANOUTPOS_ACCURATE (1 << 2)
-struct drm_bus {
- int (*set_busid)(struct drm_device *dev, struct drm_master *master);
-};
-
/**
* DRM driver structure. This structure represent the common code for
* a family of cards. There will one drm_device for each card present
@@ -846,7 +842,6 @@ struct drm_driver {
const struct drm_ioctl_desc *ioctls;
int num_ioctls;
const struct file_operations *fops;
- struct drm_bus *bus;
/* List of devices hanging off this driver with stealth attach. */
struct list_head legacy_dev_list;
--
cgit v1.2.1
From d4f68a7506e924e28a9153933076628002ba8bbc Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:45 +0200
Subject: drm: merge drm_usb into udl
This merges all the remains of drm_usb into its only user, udl. We can
then drop all the drm_usb stuff, including dev->usbdev.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 1 -
include/drm/drm_usb.h | 15 ---------------
2 files changed, 16 deletions(-)
delete mode 100644 include/drm/drm_usb.h
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 5ae388a9bb98..0e73aad225b2 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1020,7 +1020,6 @@ struct drm_device {
#endif
struct platform_device *platformdev; /**< Platform device struture */
- struct usb_device *usbdev;
struct drm_sg_mem *sg; /**< Scatter gather memory */
unsigned int num_crtcs; /**< Number of CRTCs on this device */
diff --git a/include/drm/drm_usb.h b/include/drm/drm_usb.h
deleted file mode 100644
index 33506c11da8b..000000000000
--- a/include/drm/drm_usb.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef DRM_USB_H
-#define DRM_USB_H
-
-#include <drmP.h>
-
-#include <linux/usb.h>
-
-extern int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver);
-extern void drm_usb_exit(struct drm_driver *driver, struct usb_driver *udriver);
-
-int drm_get_usb_dev(struct usb_interface *interface,
- const struct usb_device_id *id,
- struct drm_driver *driver);
-
-#endif
--
cgit v1.2.1
From bb6d822ec546603bca01f7ba17c52f0f4f80e329 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 29 Aug 2014 12:12:46 +0200
Subject: drm: move drm-lock API to drm_legacy.h
Same as the other legacy APIs, most of this is internal, so prefix it with
drm_legacy_* and move into drm_legacy.h.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 14 +++-----------
1 file changed, 3 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 0e73aad225b2..be1160fa5ebc 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1143,22 +1143,11 @@ void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
void drm_clflush_sg(struct sg_table *st);
void drm_clflush_virt_range(void *addr, unsigned long length);
- /* Locking IOCTL support (drm_lock.h) */
-extern int drm_lock(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_unlock(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context);
-extern void drm_idlelock_take(struct drm_lock_data *lock_data);
-extern void drm_idlelock_release(struct drm_lock_data *lock_data);
-
/*
* These are exported to drivers so that they can implement fencing using
* DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
*/
-extern int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv);
-
/* DMA support (drm_dma.h) */
extern int drm_legacy_dma_setup(struct drm_device *dev);
extern void drm_legacy_dma_takedown(struct drm_device *dev);
@@ -1363,6 +1352,9 @@ int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
void drm_legacy_vma_flush(struct drm_device *d);
+void drm_legacy_idlelock_take(struct drm_lock_data *lock);
+void drm_legacy_idlelock_release(struct drm_lock_data *lock);
+
/* sysfs support (drm_sysfs.c) */
struct drm_sysfs_class;
extern struct class *drm_sysfs_create(struct module *owner, char *name);
--
cgit v1.2.1
From a0c7b164ad115ec0556dc0904ee2218cbc5cedfa Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Tue, 9 Sep 2014 23:13:57 +0100
Subject: regulator: of: Provide simplified DT parsing method
Currently regulator drivers which support DT all repeat very similar code
to supply a list of known regulator identifiers to be matched with DT,
convert that to platform data which is then matched up with the regulators
as they are registered. This is both fiddly to get right and for devices
which can use the standard helpers to provide their operations is the main
source of code in the driver.
Since this code is essentially identical for most drivers we can factor it
out into the core, moving the identifiers in the match table into the
regulator descriptors and also allowing drivers to pass in the name of the
subnode to search. When a driver provides an of_match string for the
regulator the core will attempt to use that to obtain init_data, allowing
the driver to remove all explicit code for DT parsing and simply provide
data instead.
The current code leaks the phandles for the child nodes, this will be
addressed incrementally and makes no practical difference for FDT anyway
as the DT data structures are never freed.
Signed-off-by: Mark Brown <broonie@linaro.org>
---
include/linux/regulator/driver.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index bbe03a1924c0..c35f5f97a147 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -203,6 +203,8 @@ enum regulator_type {
*
* @name: Identifying name for the regulator.
* @supply_name: Identifying the regulator supply
+ * @of_match: Name used to identify regulator in DT.
+ * @regulators_node: Name of node containing regulator definitions in DT.
* @id: Numerical identifier for the regulator.
* @ops: Regulator operations table.
* @irq: Interrupt number for the regulator.
@@ -242,6 +244,8 @@ enum regulator_type {
struct regulator_desc {
const char *name;
const char *supply_name;
+ const char *of_match;
+ const char *regulators_node;
int id;
bool continuous_voltage_range;
unsigned n_voltages;
--
cgit v1.2.1
From e1effa0144a1ddf5b456c388ffaf784f3c5163fd Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Tue, 5 Aug 2014 17:19:38 -0400
Subject: ftrace: Annotate the ops operation on update
Add three new flags for ftrace_ops:
FTRACE_OPS_FL_ADDING
FTRACE_OPS_FL_REMOVING
FTRACE_OPS_FL_MODIFYING
These will be set for the ftrace_ops when they are first added
to the function tracing, being removed from function tracing
or just having their functions changed from function tracing,
respectively.
This will be needed to remove the tramp_hash, which can grow quite
big. The tramp_hash is used to note what functions a ftrace_ops
is using a trampoline for. Denoting which ftrace_ops is being
modified, will allow us to use the ftrace_ops hashes themselves,
which are much smaller as they have a global flag to denote if
a ftrace_ops is tracing all functions, as well as a notrace hash
if the ftrace_ops is tracing all but a few. The tramp_hash just
creates a hash item for every function, which can go into the 10s
of thousands if all functions are using the ftrace_ops trampoline.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index ef37286547fc..d9216f6385d9 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -91,6 +91,9 @@ ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops);
* INITIALIZED - The ftrace_ops has already been initialized (first use time
* register_ftrace_function() is called, it will initialized the ops)
* DELETED - The ops are being deleted, do not let them be registered again.
+ * ADDING - The ops is in the process of being added.
+ * REMOVING - The ops is in the process of being removed.
+ * MODIFYING - The ops is in the process of changing its filter functions.
*/
enum {
FTRACE_OPS_FL_ENABLED = 1 << 0,
@@ -102,6 +105,9 @@ enum {
FTRACE_OPS_FL_STUB = 1 << 6,
FTRACE_OPS_FL_INITIALIZED = 1 << 7,
FTRACE_OPS_FL_DELETED = 1 << 8,
+ FTRACE_OPS_FL_ADDING = 1 << 9,
+ FTRACE_OPS_FL_REMOVING = 1 << 10,
+ FTRACE_OPS_FL_MODIFYING = 1 << 11,
};
#ifdef CONFIG_DYNAMIC_FTRACE
--
cgit v1.2.1
From fef5aeeee9e3717e7aea991a7ae9ff6a7a2d4c85 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Thu, 24 Jul 2014 12:25:47 -0400
Subject: ftrace: Replace tramp_hash with old_*_hash to save space
Allowing function callbacks to declare their own trampolines requires
that each ftrace_ops that has a trampoline must have some sort of
accounting that keeps track of which ops has a trampoline attached
to a record.
The easy way to solve this was to add a "tramp_hash" that created a
hash entry for every function that a ops uses with a trampoline.
But since we can have literally tens of thousands of functions being
traced, that means we need tens of thousands of descriptors to map
the ops to the function in the hash. This is quite expensive and
can cause enabling and disabling the function graph tracer to take
some time to start and stop. It can take up to several seconds to
disable or enable all functions in the function graph tracer for this
reason.
The better approach albeit more complex, is to keep track of how ops
are being enabled and disabled, and use that along with the counting
of the number of ops attached to records, to determive what ops has
a trampoline attached to a record at enabling and disabling of
tracing.
To do this, the tramp_hash has been replaced with an old_filter_hash
and old_notrace_hash, which get the copy of the ops filter_hash and
notrace_hash respectively. The old hashes is kept until the ops has
been modified or removed and the old hashes are used with the logic
of the accounting to determine the ops that have the trampoline of
a record. The reason this has less of a footprint is due to the trick
that an "empty" hash in the filter_hash means "all functions" and
an empty hash in the notrace hash means "no functions" in the hash.
This is much more efficienct, doesn't have the delay, and takes up
much less memory, as we do not need to map all the functions but
just figure out which functions are mapped at the time it is
enabled or disabled.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index d9216f6385d9..662697babd48 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -140,7 +140,7 @@ struct ftrace_ops {
int nr_trampolines;
struct ftrace_ops_hash local_hash;
struct ftrace_ops_hash *func_hash;
- struct ftrace_hash *tramp_hash;
+ struct ftrace_ops_hash old_hash;
unsigned long trampoline;
#endif
};
--
cgit v1.2.1
From 3a630178fd5f30c285fd7016c5340a176b625913 Mon Sep 17 00:00:00 2001
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: Thu, 7 Aug 2014 10:52:04 -0700
Subject: tracing: generate RCU warnings even when tracepoints are disabled
Dave Jones reported seeing a bug from one of my TLB tracepoints:
http://lkml.kernel.org/r/20140806181801.GA4605@redhat.com
I've been running these patches for months and never saw this.
But, a big chunk of my testing, especially with all the debugging
enabled, was in a vm where intel_idle doesn't work. On the
systems where I was using intel_idle, I never had lockdep enabled
and this tracepoint on at the same time.
This patch ensures that whenever we have lockdep available, we do
_some_ RCU activity at the site of the tracepoint, despite
whether the tracepoint's condition matches or even if the
tracepoint itself is completely disabled. This is a bit of a
hack, but it is pretty self-contained.
I confirmed that with this patch plus lockdep I get the same
splat as Dave Jones did, but without enabling the tracepoint
explicitly.
Link: http://lkml.kernel.org/p/20140807175204.C257CAC5@viggo.jf.intel.com
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Dave Jones <davej@redhat.com>,
Cc: paulmck@linux.vnet.ibm.com
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/tracepoint.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index b1293f15f592..e08e21e5f601 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -157,6 +157,12 @@ extern void syscall_unregfunc(void);
* Make sure the alignment of the structure in the __tracepoints section will
* not add unwanted padding between the beginning of the section and the
* structure. Force alignment to the same alignment as the section start.
+ *
+ * When lockdep is enabled, we make sure to always do the RCU portions of
+ * the tracepoint code, regardless of whether tracing is on or we match the
+ * condition. This lets us find RCU issues triggered with tracepoints even
+ * when this tracepoint is off. This code has no purpose other than poking
+ * RCU a bit.
*/
#define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
extern struct tracepoint __tracepoint_##name; \
@@ -167,6 +173,11 @@ extern void syscall_unregfunc(void);
TP_PROTO(data_proto), \
TP_ARGS(data_args), \
TP_CONDITION(cond),,); \
+ if (IS_ENABLED(CONFIG_LOCKDEP)) { \
+ rcu_read_lock_sched_notrace(); \
+ rcu_dereference_sched(__tracepoint_##name.funcs);\
+ rcu_read_unlock_sched_notrace(); \
+ } \
} \
__DECLARE_TRACE_RCU(name, PARAMS(proto), PARAMS(args), \
PARAMS(cond), PARAMS(data_proto), PARAMS(data_args)) \
--
cgit v1.2.1
From c858403943886a92eece9d0413aa65c48bbe6fa7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michel=20D=C3=A4nzer?= <michel.daenzer@amd.com>
Date: Thu, 28 Aug 2014 15:56:00 +0900
Subject: drm/radeon: Add RADEON_GEM_CPU_ACCESS BO creation flag
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This flag is a hint that userspace expects the BO to be accessed by the
CPU. We can use that hint to prevent such BOs from ever being stored in
the CPU inaccessible part of VRAM.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
include/uapi/drm/radeon_drm.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 375b6e656c54..f755f20d2b5c 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -801,6 +801,8 @@ struct drm_radeon_gem_info {
#define RADEON_GEM_NO_BACKING_STORE (1 << 0)
#define RADEON_GEM_GTT_UC (1 << 1)
#define RADEON_GEM_GTT_WC (1 << 2)
+/* BO is expected to be accessed by the CPU */
+#define RADEON_GEM_CPU_ACCESS (1 << 3)
struct drm_radeon_gem_create {
uint64_t size;
--
cgit v1.2.1
From f266f04d33e5265e2f61ffc9d2b2f97214804995 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 28 Aug 2014 10:59:05 -0400
Subject: drm/radeon: add RADEON_GEM_NO_CPU_ACCESS BO creation flag (v4)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Allows pinning of buffers in the non-CPU visible portion of
vram.
v2: incorporate Michel's comments.
v3: rebase on Michel's patch
v4: rebase on Michel's v2 patch
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
---
include/uapi/drm/radeon_drm.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index f755f20d2b5c..50d0fb41a3bf 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -803,6 +803,8 @@ struct drm_radeon_gem_info {
#define RADEON_GEM_GTT_WC (1 << 2)
/* BO is expected to be accessed by the CPU */
#define RADEON_GEM_CPU_ACCESS (1 << 3)
+/* CPU access is not expected to work for this BO */
+#define RADEON_GEM_NO_CPU_ACCESS (1 << 4)
struct drm_radeon_gem_create {
uint64_t size;
--
cgit v1.2.1
From 378520b837cf4da769600b83690d8e825f16a611 Mon Sep 17 00:00:00 2001
From: Peng Tao <tao.peng@primarydata.com>
Date: Thu, 7 Aug 2014 10:15:02 +0800
Subject: nfs41: add a helper function to set layoutcommit after commit
Track lwb in nfs_commit_data so that we can use it to setup
layoutcommit in commit_done callback.
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs_xdr.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 0040629894df..e563b2c976ef 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1328,6 +1328,7 @@ struct nfs_commit_data {
struct pnfs_layout_segment *lseg;
struct nfs_client *ds_clp; /* pNFS data server */
int ds_commit_index;
+ loff_t lwb;
const struct rpc_call_ops *mds_ops;
const struct nfs_commit_completion_ops *completion_ops;
int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
--
cgit v1.2.1
From 5f919c9f10c1cf821ee5f414683214a361a1b98c Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 21 Aug 2014 11:09:25 -0500
Subject: pnfs: allow splicing pre-encoded pages into the layoutcommit args
Currently there is no XDR buffer space allocated for the per-layout driver
layoutcommit payload, which leads to server buffer overflows in the
blocklayout driver even under simple workloads. As we can't do per-layout
sizes for XDR operations we'll have to splice a previously encoded list
of pages into the XDR stream, similar to how we handle ACL buffers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs_xdr.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index e563b2c976ef..f4092c6b90fb 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -279,6 +279,9 @@ struct nfs4_layoutcommit_args {
__u64 lastbytewritten;
struct inode *inode;
const u32 *bitmask;
+ size_t layoutupdate_len;
+ struct page *layoutupdate_page;
+ struct page **layoutupdate_pages;
};
struct nfs4_layoutcommit_res {
--
cgit v1.2.1
From b954d83421d51d822c42e5ab7b65069b25ad3005 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 10 Sep 2014 15:01:02 +0200
Subject: net: bpf: only build bpf_jit_binary_{alloc, free}() when jit selected
Since BPF JIT depends on the availability of module_alloc() and
module_free() helpers (HAVE_BPF_JIT and MODULES), we better build
that code only in case we have BPF_JIT in our config enabled, just
like with other JIT code. Fixes builds for arm/marzen_defconfig
and sh/rsk7269_defconfig.
====================
kernel/built-in.o: In function `bpf_jit_binary_alloc':
/home/cwang/linux/kernel/bpf/core.c:144: undefined reference to `module_alloc'
kernel/built-in.o: In function `bpf_jit_binary_free':
/home/cwang/linux/kernel/bpf/core.c:164: undefined reference to `module_free'
make: *** [vmlinux] Error 1
====================
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Fixes: 738cbe72adc5 ("net: bpf: consolidate JIT binary allocator")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/filter.h | 78 +++++++++++++++++++++++++-------------------------
1 file changed, 39 insertions(+), 39 deletions(-)
(limited to 'include')
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 4b59edead908..1a0bc6d134d7 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -4,12 +4,18 @@
#ifndef __LINUX_FILTER_H__
#define __LINUX_FILTER_H__
+#include <stdarg.h>
+
#include <linux/atomic.h>
#include <linux/compat.h>
#include <linux/skbuff.h>
+#include <linux/linkage.h>
+#include <linux/printk.h>
#include <linux/workqueue.h>
-#include <uapi/linux/filter.h>
+
#include <asm/cacheflush.h>
+
+#include <uapi/linux/filter.h>
#include <uapi/linux/bpf.h>
struct sk_buff;
@@ -363,14 +369,6 @@ struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size,
gfp_t gfp_extra_flags);
void __bpf_prog_free(struct bpf_prog *fp);
-typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size);
-
-struct bpf_binary_header *
-bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
- unsigned int alignment,
- bpf_jit_fill_hole_t bpf_fill_ill_insns);
-void bpf_jit_binary_free(struct bpf_binary_header *hdr);
-
static inline void bpf_prog_unlock_free(struct bpf_prog *fp)
{
bpf_prog_unlock_ro(fp);
@@ -393,6 +391,38 @@ void sk_filter_uncharge(struct sock *sk, struct sk_filter *fp);
u64 __bpf_call_base(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
void bpf_int_jit_compile(struct bpf_prog *fp);
+#ifdef CONFIG_BPF_JIT
+typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size);
+
+struct bpf_binary_header *
+bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
+ unsigned int alignment,
+ bpf_jit_fill_hole_t bpf_fill_ill_insns);
+void bpf_jit_binary_free(struct bpf_binary_header *hdr);
+
+void bpf_jit_compile(struct bpf_prog *fp);
+void bpf_jit_free(struct bpf_prog *fp);
+
+static inline void bpf_jit_dump(unsigned int flen, unsigned int proglen,
+ u32 pass, void *image)
+{
+ pr_err("flen=%u proglen=%u pass=%u image=%pK\n",
+ flen, proglen, pass, image);
+ if (image)
+ print_hex_dump(KERN_ERR, "JIT code: ", DUMP_PREFIX_OFFSET,
+ 16, 1, image, proglen, false);
+}
+#else
+static inline void bpf_jit_compile(struct bpf_prog *fp)
+{
+}
+
+static inline void bpf_jit_free(struct bpf_prog *fp)
+{
+ bpf_prog_unlock_free(fp);
+}
+#endif /* CONFIG_BPF_JIT */
+
#define BPF_ANC BIT(15)
static inline u16 bpf_anc_helper(const struct sock_filter *ftest)
@@ -440,36 +470,6 @@ static inline void *bpf_load_pointer(const struct sk_buff *skb, int k,
return bpf_internal_load_pointer_neg_helper(skb, k, size);
}
-#ifdef CONFIG_BPF_JIT
-#include <stdarg.h>
-#include <linux/linkage.h>
-#include <linux/printk.h>
-
-void bpf_jit_compile(struct bpf_prog *fp);
-void bpf_jit_free(struct bpf_prog *fp);
-
-static inline void bpf_jit_dump(unsigned int flen, unsigned int proglen,
- u32 pass, void *image)
-{
- pr_err("flen=%u proglen=%u pass=%u image=%pK\n",
- flen, proglen, pass, image);
- if (image)
- print_hex_dump(KERN_ERR, "JIT code: ", DUMP_PREFIX_OFFSET,
- 16, 1, image, proglen, false);
-}
-#else
-#include <linux/slab.h>
-
-static inline void bpf_jit_compile(struct bpf_prog *fp)
-{
-}
-
-static inline void bpf_jit_free(struct bpf_prog *fp)
-{
- bpf_prog_unlock_free(fp);
-}
-#endif /* CONFIG_BPF_JIT */
-
static inline int bpf_tell_extensions(void)
{
return SKF_AD_MAX;
--
cgit v1.2.1
From 6314b6796e3c070d4c8086b08dfd453a0aeac4cf Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 4 Sep 2014 23:37:49 -0700
Subject: clk: Don't hold prepare_lock across debugfs creation
Rob Clark reports a lockdep splat that involves the prepare_lock
chained with the mmap semaphore.
======================================================
[ INFO: possible circular locking dependency detected ]
3.17.0-rc1-00050-g07a489b #802 Tainted: G W
-------------------------------------------------------
Xorg.bin/5413 is trying to acquire lock:
(prepare_lock){+.+.+.}, at: [<c0781280>] clk_prepare_lock+0x88/0xfc
but task is already holding lock:
(qcom_iommu_lock){+.+...}, at: [<c079f664>] qcom_iommu_unmap+0x1c/0x1f0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (qcom_iommu_lock){+.+...}:
[<c079f860>] qcom_iommu_map+0x28/0x450
[<c079eb50>] iommu_map+0xc8/0x12c
[<c056c1fc>] msm_iommu_map+0xb4/0x130
[<c05697bc>] msm_gem_get_iova_locked+0x9c/0xe8
[<c0569854>] msm_gem_get_iova+0x4c/0x64
[<c0562208>] mdp4_kms_init+0x4c4/0x6c0
[<c056881c>] msm_load+0x2ac/0x34c
[<c0545724>] drm_dev_register+0xac/0x108
[<c0547510>] drm_platform_init+0x50/0xf0
[<c0578a60>] try_to_bring_up_master.part.3+0xc8/0x108
[<c0578b48>] component_master_add_with_match+0xa8/0x104
[<c0568294>] msm_pdev_probe+0x64/0x70
[<c057e704>] platform_drv_probe+0x2c/0x60
[<c057cff8>] driver_probe_device+0x108/0x234
[<c057b65c>] bus_for_each_drv+0x64/0x98
[<c057cec0>] device_attach+0x78/0x8c
[<c057c590>] bus_probe_device+0x88/0xac
[<c057c9b8>] deferred_probe_work_func+0x68/0x9c
[<c0259db4>] process_one_work+0x1a0/0x40c
[<c025a710>] worker_thread+0x44/0x4d8
[<c025ec54>] kthread+0xd8/0xec
[<c020e9a8>] ret_from_fork+0x14/0x2c
-> #3 (&dev->struct_mutex){+.+.+.}:
[<c0541188>] drm_gem_mmap+0x38/0xd0
[<c05695b8>] msm_gem_mmap+0xc/0x5c
[<c02f0b6c>] mmap_region+0x35c/0x6c8
[<c02f11ec>] do_mmap_pgoff+0x314/0x398
[<c02de1e0>] vm_mmap_pgoff+0x84/0xb4
[<c02ef83c>] SyS_mmap_pgoff+0x94/0xbc
[<c020e8e0>] ret_fast_syscall+0x0/0x48
-> #2 (&mm->mmap_sem){++++++}:
[<c0321138>] filldir64+0x68/0x180
[<c0333fe0>] dcache_readdir+0x188/0x22c
[<c0320ed0>] iterate_dir+0x9c/0x11c
[<c03213b0>] SyS_getdents64+0x78/0xe8
[<c020e8e0>] ret_fast_syscall+0x0/0x48
-> #1 (&sb->s_type->i_mutex_key#3){+.+.+.}:
[<c03fc544>] __create_file+0x58/0x1dc
[<c03fc70c>] debugfs_create_dir+0x1c/0x24
[<c0781c7c>] clk_debug_create_subtree+0x20/0x170
[<c0be2af8>] clk_debug_init+0xec/0x14c
[<c0208c70>] do_one_initcall+0x8c/0x1c8
[<c0b9cce4>] kernel_init_freeable+0x13c/0x1dc
[<c0877bc4>] kernel_init+0x8/0xe8
[<c020e9a8>] ret_from_fork+0x14/0x2c
-> #0 (prepare_lock){+.+.+.}:
[<c087c408>] mutex_lock_nested+0x70/0x3e8
[<c0781280>] clk_prepare_lock+0x88/0xfc
[<c0782c50>] clk_prepare+0xc/0x24
[<c079f474>] __enable_clocks.isra.4+0x18/0xa4
[<c079f614>] __flush_iotlb_va+0xe0/0x114
[<c079f6f4>] qcom_iommu_unmap+0xac/0x1f0
[<c079ea3c>] iommu_unmap+0x9c/0xe8
[<c056c2fc>] msm_iommu_unmap+0x64/0x84
[<c0569da4>] msm_gem_free_object+0x11c/0x338
[<c05413ec>] drm_gem_object_handle_unreference_unlocked+0xfc/0x130
[<c0541604>] drm_gem_object_release_handle+0x50/0x68
[<c0447a98>] idr_for_each+0xa8/0xdc
[<c0541c10>] drm_gem_release+0x1c/0x28
[<c0540b3c>] drm_release+0x370/0x428
[<c031105c>] __fput+0x98/0x1e8
[<c025d73c>] task_work_run+0xb0/0xfc
[<c02477ec>] do_exit+0x2ec/0x948
[<c0247ec0>] do_group_exit+0x4c/0xb8
[<c025180c>] get_signal+0x28c/0x6ac
[<c0211204>] do_signal+0xc4/0x3e4
[<c02116cc>] do_work_pending+0xb4/0xc4
[<c020e938>] work_pending+0xc/0x20
other info that might help us debug this:
Chain exists of:
prepare_lock --> &dev->struct_mutex --> qcom_iommu_lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(qcom_iommu_lock);
lock(&dev->struct_mutex);
lock(qcom_iommu_lock);
lock(prepare_lock);
*** DEADLOCK ***
3 locks held by Xorg.bin/5413:
#0: (drm_global_mutex){+.+.+.}, at: [<c0540800>] drm_release+0x34/0x428
#1: (&dev->struct_mutex){+.+.+.}, at: [<c05413bc>] drm_gem_object_handle_unreference_unlocked+0xcc/0x130
#2: (qcom_iommu_lock){+.+...}, at: [<c079f664>] qcom_iommu_unmap+0x1c/0x1f0
stack backtrace:
CPU: 1 PID: 5413 Comm: Xorg.bin Tainted: G W 3.17.0-rc1-00050-g07a489b #802
[<c0216290>] (unwind_backtrace) from [<c0211d8c>] (show_stack+0x10/0x14)
[<c0211d8c>] (show_stack) from [<c087a078>] (dump_stack+0x98/0xb8)
[<c087a078>] (dump_stack) from [<c027f024>] (print_circular_bug+0x218/0x340)
[<c027f024>] (print_circular_bug) from [<c0283e08>] (__lock_acquire+0x1d24/0x20b8)
[<c0283e08>] (__lock_acquire) from [<c0284774>] (lock_acquire+0x9c/0xbc)
[<c0284774>] (lock_acquire) from [<c087c408>] (mutex_lock_nested+0x70/0x3e8)
[<c087c408>] (mutex_lock_nested) from [<c0781280>] (clk_prepare_lock+0x88/0xfc)
[<c0781280>] (clk_prepare_lock) from [<c0782c50>] (clk_prepare+0xc/0x24)
[<c0782c50>] (clk_prepare) from [<c079f474>] (__enable_clocks.isra.4+0x18/0xa4)
[<c079f474>] (__enable_clocks.isra.4) from [<c079f614>] (__flush_iotlb_va+0xe0/0x114)
[<c079f614>] (__flush_iotlb_va) from [<c079f6f4>] (qcom_iommu_unmap+0xac/0x1f0)
[<c079f6f4>] (qcom_iommu_unmap) from [<c079ea3c>] (iommu_unmap+0x9c/0xe8)
[<c079ea3c>] (iommu_unmap) from [<c056c2fc>] (msm_iommu_unmap+0x64/0x84)
[<c056c2fc>] (msm_iommu_unmap) from [<c0569da4>] (msm_gem_free_object+0x11c/0x338)
[<c0569da4>] (msm_gem_free_object) from [<c05413ec>] (drm_gem_object_handle_unreference_unlocked+0xfc/0x130)
[<c05413ec>] (drm_gem_object_handle_unreference_unlocked) from [<c0541604>] (drm_gem_object_release_handle+0x50/0x68)
[<c0541604>] (drm_gem_object_release_handle) from [<c0447a98>] (idr_for_each+0xa8/0xdc)
[<c0447a98>] (idr_for_each) from [<c0541c10>] (drm_gem_release+0x1c/0x28)
[<c0541c10>] (drm_gem_release) from [<c0540b3c>] (drm_release+0x370/0x428)
[<c0540b3c>] (drm_release) from [<c031105c>] (__fput+0x98/0x1e8)
[<c031105c>] (__fput) from [<c025d73c>] (task_work_run+0xb0/0xfc)
[<c025d73c>] (task_work_run) from [<c02477ec>] (do_exit+0x2ec/0x948)
[<c02477ec>] (do_exit) from [<c0247ec0>] (do_group_exit+0x4c/0xb8)
[<c0247ec0>] (do_group_exit) from [<c025180c>] (get_signal+0x28c/0x6ac)
[<c025180c>] (get_signal) from [<c0211204>] (do_signal+0xc4/0x3e4)
[<c0211204>] (do_signal) from [<c02116cc>] (do_work_pending+0xb4/0xc4)
[<c02116cc>] (do_work_pending) from [<c020e938>] (work_pending+0xc/0x20)
We can break this chain if we don't hold the prepare_lock while
creating debugfs directories. We only hold the prepare_lock right
now because we're traversing the clock tree recursively and we
don't want the hierarchy to change during the traversal.
Replacing this traversal with a simple linked list walk allows us
to only grab a list lock instead of the prepare_lock, thus
breaking the lock chain.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
include/linux/clk-private.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/clk-private.h b/include/linux/clk-private.h
index efbf70b9fd84..4ed34105c371 100644
--- a/include/linux/clk-private.h
+++ b/include/linux/clk-private.h
@@ -48,6 +48,7 @@ struct clk {
unsigned long accuracy;
struct hlist_head children;
struct hlist_node child_node;
+ struct hlist_node debug_node;
unsigned int notifier_count;
#ifdef CONFIG_DEBUG_FS
struct dentry *dentry;
--
cgit v1.2.1
From 184c3fc3f52fb75800deb76deffb70907d1f76ea Mon Sep 17 00:00:00 2001
From: Mark Rustad <mark.d.rustad@intel.com>
Date: Thu, 11 Sep 2014 09:47:23 +0930
Subject: moduleparam: Resolve missing-field-initializer warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Resolve a missing-field-initializer warning, that is produced
by every reference to module_param_call, by using designated
initialization for the first field. That is enough to silence
the complaint.
The message is only seen when doing a W=2 build. I happened to be using gcc
4.8.3, but I think most versions would produce the warning when it is
enabled. It can either be silenced by using even a single designated
initializer as I did here, or providing values for all of the fields. Because
of the number of references to the macro, this change silences many warnings
in W=2 builds.
One instance of the full warning message looks like this:
/home/share/git/nn-mdr/include/linux/moduleparam.h:198:16: warning: missing
initializer for field ‘free’ of ‘struct kernel_param_ops’
[-Wmissing-field-initializers]
static struct kernel_param_ops __param_ops_##name = \
^
/home/share/git/nn-mdr/fs/fuse/inode.c:35:1: note: in expansion of macro
‘module_param_call’
module_param_call(max_user_bgreq, set_global_limit, param_get_uint,
^
/home/share/git/nn-mdr/include/linux/moduleparam.h:56:9: note: ‘free’
declared here
void (*free)(void *arg);
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/moduleparam.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 593501996574..b43f4752304e 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -224,7 +224,7 @@ struct kparam_array
/* Obsolete - use module_param_cb() */
#define module_param_call(name, set, get, arg, perm) \
static struct kernel_param_ops __param_ops_##name = \
- { 0, (void *)set, (void *)get }; \
+ { .flags = 0, (void *)set, (void *)get }; \
__module_param_call(MODULE_PARAM_PREFIX, \
name, &__param_ops_##name, arg, \
(perm) + sizeof(__check_old_set_param(set))*0, -1, 0)
--
cgit v1.2.1
From 3d598f47e804a77208c6bb0a454123018e2f2281 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 19 Aug 2014 20:29:12 +0300
Subject: dmaengine: dw: move dw_dmac.h to where it belongs to
There is a common storage for platform data related structures and definitions
inside kernel source tree. The patch moves file from include/linux to
include/linux/platform_data and renames it acoordingly. The users are also
updated.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
[For the arch/avr32/.* and .*sound/atmel.*]
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/dw_dmac.h | 111 -----------------------------------
include/linux/platform_data/dma-dw.h | 111 +++++++++++++++++++++++++++++++++++
include/sound/atmel-abdac.h | 2 +-
include/sound/atmel-ac97c.h | 2 +-
4 files changed, 113 insertions(+), 113 deletions(-)
delete mode 100644 include/linux/dw_dmac.h
create mode 100644 include/linux/platform_data/dma-dw.h
(limited to 'include')
diff --git a/include/linux/dw_dmac.h b/include/linux/dw_dmac.h
deleted file mode 100644
index 68b4024184de..000000000000
--- a/include/linux/dw_dmac.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Driver for the Synopsys DesignWare DMA Controller
- *
- * Copyright (C) 2007 Atmel Corporation
- * Copyright (C) 2010-2011 ST Microelectronics
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef DW_DMAC_H
-#define DW_DMAC_H
-
-#include <linux/dmaengine.h>
-
-/**
- * struct dw_dma_slave - Controller-specific information about a slave
- *
- * @dma_dev: required DMA master device. Depricated.
- * @bus_id: name of this device channel, not just a device name since
- * devices may have more than one channel e.g. "foo_tx"
- * @cfg_hi: Platform-specific initializer for the CFG_HI register
- * @cfg_lo: Platform-specific initializer for the CFG_LO register
- * @src_master: src master for transfers on allocated channel.
- * @dst_master: dest master for transfers on allocated channel.
- */
-struct dw_dma_slave {
- struct device *dma_dev;
- u32 cfg_hi;
- u32 cfg_lo;
- u8 src_master;
- u8 dst_master;
-};
-
-/**
- * struct dw_dma_platform_data - Controller configuration parameters
- * @nr_channels: Number of channels supported by hardware (max 8)
- * @is_private: The device channels should be marked as private and not for
- * by the general purpose DMA channel allocator.
- * @chan_allocation_order: Allocate channels starting from 0 or 7
- * @chan_priority: Set channel priority increasing from 0 to 7 or 7 to 0.
- * @block_size: Maximum block size supported by the controller
- * @nr_masters: Number of AHB masters supported by the controller
- * @data_width: Maximum data width supported by hardware per AHB master
- * (0 - 8bits, 1 - 16bits, ..., 5 - 256bits)
- */
-struct dw_dma_platform_data {
- unsigned int nr_channels;
- bool is_private;
-#define CHAN_ALLOCATION_ASCENDING 0 /* zero to seven */
-#define CHAN_ALLOCATION_DESCENDING 1 /* seven to zero */
- unsigned char chan_allocation_order;
-#define CHAN_PRIORITY_ASCENDING 0 /* chan0 highest */
-#define CHAN_PRIORITY_DESCENDING 1 /* chan7 highest */
- unsigned char chan_priority;
- unsigned short block_size;
- unsigned char nr_masters;
- unsigned char data_width[4];
-};
-
-/* bursts size */
-enum dw_dma_msize {
- DW_DMA_MSIZE_1,
- DW_DMA_MSIZE_4,
- DW_DMA_MSIZE_8,
- DW_DMA_MSIZE_16,
- DW_DMA_MSIZE_32,
- DW_DMA_MSIZE_64,
- DW_DMA_MSIZE_128,
- DW_DMA_MSIZE_256,
-};
-
-/* Platform-configurable bits in CFG_HI */
-#define DWC_CFGH_FCMODE (1 << 0)
-#define DWC_CFGH_FIFO_MODE (1 << 1)
-#define DWC_CFGH_PROTCTL(x) ((x) << 2)
-#define DWC_CFGH_SRC_PER(x) ((x) << 7)
-#define DWC_CFGH_DST_PER(x) ((x) << 11)
-
-/* Platform-configurable bits in CFG_LO */
-#define DWC_CFGL_LOCK_CH_XFER (0 << 12) /* scope of LOCK_CH */
-#define DWC_CFGL_LOCK_CH_BLOCK (1 << 12)
-#define DWC_CFGL_LOCK_CH_XACT (2 << 12)
-#define DWC_CFGL_LOCK_BUS_XFER (0 << 14) /* scope of LOCK_BUS */
-#define DWC_CFGL_LOCK_BUS_BLOCK (1 << 14)
-#define DWC_CFGL_LOCK_BUS_XACT (2 << 14)
-#define DWC_CFGL_LOCK_CH (1 << 15) /* channel lockout */
-#define DWC_CFGL_LOCK_BUS (1 << 16) /* busmaster lockout */
-#define DWC_CFGL_HS_DST_POL (1 << 18) /* dst handshake active low */
-#define DWC_CFGL_HS_SRC_POL (1 << 19) /* src handshake active low */
-
-/* DMA API extensions */
-struct dw_cyclic_desc {
- struct dw_desc **desc;
- unsigned long periods;
- void (*period_callback)(void *param);
- void *period_callback_param;
-};
-
-struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
- dma_addr_t buf_addr, size_t buf_len, size_t period_len,
- enum dma_transfer_direction direction);
-void dw_dma_cyclic_free(struct dma_chan *chan);
-int dw_dma_cyclic_start(struct dma_chan *chan);
-void dw_dma_cyclic_stop(struct dma_chan *chan);
-
-dma_addr_t dw_dma_get_src_addr(struct dma_chan *chan);
-
-dma_addr_t dw_dma_get_dst_addr(struct dma_chan *chan);
-
-#endif /* DW_DMAC_H */
diff --git a/include/linux/platform_data/dma-dw.h b/include/linux/platform_data/dma-dw.h
new file mode 100644
index 000000000000..68b4024184de
--- /dev/null
+++ b/include/linux/platform_data/dma-dw.h
@@ -0,0 +1,111 @@
+/*
+ * Driver for the Synopsys DesignWare DMA Controller
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ * Copyright (C) 2010-2011 ST Microelectronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef DW_DMAC_H
+#define DW_DMAC_H
+
+#include <linux/dmaengine.h>
+
+/**
+ * struct dw_dma_slave - Controller-specific information about a slave
+ *
+ * @dma_dev: required DMA master device. Depricated.
+ * @bus_id: name of this device channel, not just a device name since
+ * devices may have more than one channel e.g. "foo_tx"
+ * @cfg_hi: Platform-specific initializer for the CFG_HI register
+ * @cfg_lo: Platform-specific initializer for the CFG_LO register
+ * @src_master: src master for transfers on allocated channel.
+ * @dst_master: dest master for transfers on allocated channel.
+ */
+struct dw_dma_slave {
+ struct device *dma_dev;
+ u32 cfg_hi;
+ u32 cfg_lo;
+ u8 src_master;
+ u8 dst_master;
+};
+
+/**
+ * struct dw_dma_platform_data - Controller configuration parameters
+ * @nr_channels: Number of channels supported by hardware (max 8)
+ * @is_private: The device channels should be marked as private and not for
+ * by the general purpose DMA channel allocator.
+ * @chan_allocation_order: Allocate channels starting from 0 or 7
+ * @chan_priority: Set channel priority increasing from 0 to 7 or 7 to 0.
+ * @block_size: Maximum block size supported by the controller
+ * @nr_masters: Number of AHB masters supported by the controller
+ * @data_width: Maximum data width supported by hardware per AHB master
+ * (0 - 8bits, 1 - 16bits, ..., 5 - 256bits)
+ */
+struct dw_dma_platform_data {
+ unsigned int nr_channels;
+ bool is_private;
+#define CHAN_ALLOCATION_ASCENDING 0 /* zero to seven */
+#define CHAN_ALLOCATION_DESCENDING 1 /* seven to zero */
+ unsigned char chan_allocation_order;
+#define CHAN_PRIORITY_ASCENDING 0 /* chan0 highest */
+#define CHAN_PRIORITY_DESCENDING 1 /* chan7 highest */
+ unsigned char chan_priority;
+ unsigned short block_size;
+ unsigned char nr_masters;
+ unsigned char data_width[4];
+};
+
+/* bursts size */
+enum dw_dma_msize {
+ DW_DMA_MSIZE_1,
+ DW_DMA_MSIZE_4,
+ DW_DMA_MSIZE_8,
+ DW_DMA_MSIZE_16,
+ DW_DMA_MSIZE_32,
+ DW_DMA_MSIZE_64,
+ DW_DMA_MSIZE_128,
+ DW_DMA_MSIZE_256,
+};
+
+/* Platform-configurable bits in CFG_HI */
+#define DWC_CFGH_FCMODE (1 << 0)
+#define DWC_CFGH_FIFO_MODE (1 << 1)
+#define DWC_CFGH_PROTCTL(x) ((x) << 2)
+#define DWC_CFGH_SRC_PER(x) ((x) << 7)
+#define DWC_CFGH_DST_PER(x) ((x) << 11)
+
+/* Platform-configurable bits in CFG_LO */
+#define DWC_CFGL_LOCK_CH_XFER (0 << 12) /* scope of LOCK_CH */
+#define DWC_CFGL_LOCK_CH_BLOCK (1 << 12)
+#define DWC_CFGL_LOCK_CH_XACT (2 << 12)
+#define DWC_CFGL_LOCK_BUS_XFER (0 << 14) /* scope of LOCK_BUS */
+#define DWC_CFGL_LOCK_BUS_BLOCK (1 << 14)
+#define DWC_CFGL_LOCK_BUS_XACT (2 << 14)
+#define DWC_CFGL_LOCK_CH (1 << 15) /* channel lockout */
+#define DWC_CFGL_LOCK_BUS (1 << 16) /* busmaster lockout */
+#define DWC_CFGL_HS_DST_POL (1 << 18) /* dst handshake active low */
+#define DWC_CFGL_HS_SRC_POL (1 << 19) /* src handshake active low */
+
+/* DMA API extensions */
+struct dw_cyclic_desc {
+ struct dw_desc **desc;
+ unsigned long periods;
+ void (*period_callback)(void *param);
+ void *period_callback_param;
+};
+
+struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
+ dma_addr_t buf_addr, size_t buf_len, size_t period_len,
+ enum dma_transfer_direction direction);
+void dw_dma_cyclic_free(struct dma_chan *chan);
+int dw_dma_cyclic_start(struct dma_chan *chan);
+void dw_dma_cyclic_stop(struct dma_chan *chan);
+
+dma_addr_t dw_dma_get_src_addr(struct dma_chan *chan);
+
+dma_addr_t dw_dma_get_dst_addr(struct dma_chan *chan);
+
+#endif /* DW_DMAC_H */
diff --git a/include/sound/atmel-abdac.h b/include/sound/atmel-abdac.h
index edff6a8ba1b5..a8f735d677fa 100644
--- a/include/sound/atmel-abdac.h
+++ b/include/sound/atmel-abdac.h
@@ -10,7 +10,7 @@
#ifndef __INCLUDE_SOUND_ATMEL_ABDAC_H
#define __INCLUDE_SOUND_ATMEL_ABDAC_H
-#include <linux/dw_dmac.h>
+#include <linux/platform_data/dma-dw.h>
/**
* struct atmel_abdac_pdata - board specific ABDAC configuration
diff --git a/include/sound/atmel-ac97c.h b/include/sound/atmel-ac97c.h
index 00e6c289a936..f2a1cdc37661 100644
--- a/include/sound/atmel-ac97c.h
+++ b/include/sound/atmel-ac97c.h
@@ -10,7 +10,7 @@
#ifndef __INCLUDE_SOUND_ATMEL_AC97C_H
#define __INCLUDE_SOUND_ATMEL_AC97C_H
-#include <linux/dw_dmac.h>
+#include <linux/platform_data/dma-dw.h>
#define AC97C_CAPTURE 0x01
#define AC97C_PLAYBACK 0x02
--
cgit v1.2.1
From 7e1e2f27c5508518e58e5cbb11e26cbb815f4c56 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 19 Aug 2014 20:29:14 +0300
Subject: dmaengine: dw: convert dw_dma_slave to use explicit HS interfaces
Instead of exposing the possibility to set DMA registers CFG_HI and CFG_LO
strict user to provide handshake interfaces explicitly.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/platform_data/dma-dw.h | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/dma-dw.h b/include/linux/platform_data/dma-dw.h
index 68b4024184de..bc411a1bf8e7 100644
--- a/include/linux/platform_data/dma-dw.h
+++ b/include/linux/platform_data/dma-dw.h
@@ -17,17 +17,15 @@
* struct dw_dma_slave - Controller-specific information about a slave
*
* @dma_dev: required DMA master device. Depricated.
- * @bus_id: name of this device channel, not just a device name since
- * devices may have more than one channel e.g. "foo_tx"
- * @cfg_hi: Platform-specific initializer for the CFG_HI register
- * @cfg_lo: Platform-specific initializer for the CFG_LO register
+ * @src_id: src request line
+ * @dst_id: dst request line
* @src_master: src master for transfers on allocated channel.
* @dst_master: dest master for transfers on allocated channel.
*/
struct dw_dma_slave {
struct device *dma_dev;
- u32 cfg_hi;
- u32 cfg_lo;
+ u8 src_id;
+ u8 dst_id;
u8 src_master;
u8 dst_master;
};
--
cgit v1.2.1
From 78f686cae0c67a2edd167cbbe2f36017f0fa4b30 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 10 Sep 2014 22:28:06 +0300
Subject: cfg80211: don't put kek/kck/replay counter on the stack
There's no need to put the values on the stack, just pass a
pointer to the data in the nl80211 message. This reduces stack
usage and avoids potential issues with putting sensitive data
on the stack.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 0d17ec9df692..c2c710c14a50 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1980,14 +1980,12 @@ struct cfg80211_wowlan_wakeup {
/**
* struct cfg80211_gtk_rekey_data - rekey data
- * @kek: key encryption key
- * @kck: key confirmation key
- * @replay_ctr: replay counter
+ * @kek: key encryption key (NL80211_KEK_LEN bytes)
+ * @kck: key confirmation key (NL80211_KCK_LEN bytes)
+ * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
*/
struct cfg80211_gtk_rekey_data {
- u8 kek[NL80211_KEK_LEN];
- u8 kck[NL80211_KCK_LEN];
- u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
+ const u8 *kek, *kck, *replay_ctr;
};
/**
--
cgit v1.2.1
From 960d01acf62747d6518694f92be5b06f67473833 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 9 Sep 2014 22:55:35 +0300
Subject: cfg80211: add WMM traffic stream API
Add nl80211 and driver API to validate, add and delete traffic
streams with appropriate settings.
The API calls for userspace doing the action frame handshake
with the peer, and then allows only to set up the parameters
in the driver. To avoid setting up a session only to tear it
down again, the validate API is provided, but the real usage
later can still fail so userspace must be prepared for that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 4 ++++
include/net/cfg80211.h | 23 ++++++++++++++++++++++-
include/uapi/linux/nl80211.h | 28 ++++++++++++++++++++++++++++
3 files changed, 54 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 61a09f0644aa..b1be39c76931 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -166,8 +166,12 @@ static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
#define IEEE80211_MAX_MESH_ID_LEN 32
+#define IEEE80211_FIRST_TSPEC_TSID 8
#define IEEE80211_NUM_TIDS 16
+/* number of user priorities 802.11 uses */
+#define IEEE80211_NUM_UPS 8
+
#define IEEE80211_QOS_CTL_LEN 2
/* 1d tag mask */
#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index c2c710c14a50..a13beab123dc 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2318,6 +2318,17 @@ struct cfg80211_qos_map {
* @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the
* given interface This is used e.g. for dynamic HT 20/40 MHz channel width
* changes during the lifetime of the BSS.
+ *
+ * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device
+ * with the given parameters; action frame exchange has been handled by
+ * userspace so this just has to modify the TX path to take the TS into
+ * account.
+ * If the admitted time is 0 just validate the parameters to make sure
+ * the session can be created at all; it is valid to just always return
+ * success for that but that may result in inefficient behaviour (handshake
+ * with the peer followed by immediate teardown when the addition is later
+ * rejected)
+ * @del_tx_ts: remove an existing TX TS
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -2558,6 +2569,12 @@ struct cfg80211_ops {
int (*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_chan_def *chandef);
+
+ int (*add_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
+ u8 tsid, const u8 *peer, u8 user_prio,
+ u16 admitted_time);
+ int (*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
+ u8 tsid, const u8 *peer);
};
/*
@@ -2604,9 +2621,13 @@ struct cfg80211_ops {
* @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
* @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
* beaconing mode (AP, IBSS, Mesh, ...).
+ * @WIPHY_FLAG_SUPPORTS_WMM_ADMISSION: the device supports setting up WMM
+ * TSPEC sessions (TID aka TSID 0-7) with the NL80211_CMD_ADD_TX_TS
+ * command. Standard IEEE 802.11 TSPEC setup is not yet supported, it
+ * needs to be able to handle Block-Ack agreements and other things.
*/
enum wiphy_flags {
- /* use hole at 0 */
+ WIPHY_FLAG_SUPPORTS_WMM_ADMISSION = BIT(0),
/* use hole at 1 */
/* use hole at 2 */
WIPHY_FLAG_NETNS_OK = BIT(3),
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 29c4399e08b9..e5b8caf5e466 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -722,6 +722,22 @@
* QoS mapping is relevant for IP packets, it is only valid during an
* association. This is cleared on disassociation and AP restart.
*
+ * @NL80211_CMD_ADD_TX_TS: Ask the kernel to add a traffic stream for the given
+ * %NL80211_ATTR_TSID and %NL80211_ATTR_MAC with %NL80211_ATTR_USER_PRIO
+ * and %NL80211_ATTR_ADMITTED_TIME parameters.
+ * Note that the action frame handshake with the AP shall be handled by
+ * userspace via the normal management RX/TX framework, this only sets
+ * up the TX TS in the driver/device.
+ * If the admitted time attribute is not added then the request just checks
+ * if a subsequent setup could be successful, the intent is to use this to
+ * avoid setting up a session with the AP when local restrictions would
+ * make that impossible. However, the subsequent "real" setup may still
+ * fail even if the check was successful.
+ * @NL80211_CMD_DEL_TX_TS: Remove an existing TS with the %NL80211_ATTR_TSID
+ * and %NL80211_ATTR_MAC parameters. It isn't necessary to call this
+ * before removing a station entry entirely, or before disassociating
+ * or similar, cleanup will happen in the driver/device in this case.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -893,6 +909,9 @@ enum nl80211_commands {
NL80211_CMD_SET_QOS_MAP,
+ NL80211_CMD_ADD_TX_TS,
+ NL80211_CMD_DEL_TX_TS,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -1611,6 +1630,11 @@ enum nl80211_commands {
* drivers to indicate dynack capability. Dynack is automatically disabled
* setting valid value for coverage class.
*
+ * @NL80211_ATTR_TSID: a TSID value (u8 attribute)
+ * @NL80211_ATTR_USER_PRIO: user priority value (u8 attribute)
+ * @NL80211_ATTR_ADMITTED_TIME: admitted time in units of 32 microseconds
+ * (per second) (u16 attribute)
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1957,6 +1981,10 @@ enum nl80211_attrs {
NL80211_ATTR_WIPHY_DYN_ACK,
+ NL80211_ATTR_TSID,
+ NL80211_ATTR_USER_PRIO,
+ NL80211_ATTR_ADMITTED_TIME,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
--
cgit v1.2.1
From b0b6aa2c8e0d0e34f7658d5cc1e4fbb59f701c42 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 9 Sep 2014 17:09:45 +0300
Subject: cfg80211/mac80211: add wmm info to assoc event
Userspace might need to know what queues are configured
for uapsd (e.g. for setting proper default values in tspecs).
Add this bitmap to the association event (inside wmm
nested attribute)
Add additional parameter to cfg80211_rx_assoc_resp,
and update its callers.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index a13beab123dc..2ed1f80f7eb6 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3944,6 +3944,7 @@ void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
* moves to cfg80211 in this call
* @buf: authentication frame (header + body)
* @len: length of the frame data
+ * @uapsd_queues: bitmap of ACs configured to uapsd. -1 if n/a.
*
* After being asked to associate via cfg80211_ops::assoc() the driver must
* call either this function or cfg80211_auth_timeout().
@@ -3952,7 +3953,8 @@ void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
*/
void cfg80211_rx_assoc_resp(struct net_device *dev,
struct cfg80211_bss *bss,
- const u8 *buf, size_t len);
+ const u8 *buf, size_t len,
+ int uapsd_queues);
/**
* cfg80211_assoc_timeout - notification of timed out association
--
cgit v1.2.1
From 18998c381b19bfc3c285361ff6200ded7444aa2c Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Wed, 10 Sep 2014 14:07:34 +0300
Subject: cfg80211: allow requesting SMPS mode on ap start
Add feature bits to indicate device support for
static-smps and dynamic-smps modes.
Add a new NL80211_ATTR_SMPS_MODE attribue to allow
configuring the smps mode to be used by the ap
(e.g. configuring to ap to dynamic smps mode will
reduce power consumption while having minor effect
on throughput)
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 2 ++
include/uapi/linux/nl80211.h | 33 +++++++++++++++++++++++++++++++++
2 files changed, 35 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 2ed1f80f7eb6..a2ddcf2398fd 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -664,6 +664,7 @@ struct cfg80211_acl_data {
* @crypto: crypto settings
* @privacy: the BSS uses privacy
* @auth_type: Authentication type (algorithm)
+ * @smps_mode: SMPS mode
* @inactivity_timeout: time in seconds to determine station's inactivity.
* @p2p_ctwindow: P2P CT Window
* @p2p_opp_ps: P2P opportunistic PS
@@ -682,6 +683,7 @@ struct cfg80211_ap_settings {
struct cfg80211_crypto_settings crypto;
bool privacy;
enum nl80211_auth_type auth_type;
+ enum nl80211_smps_mode smps_mode;
int inactivity_timeout;
u8 p2p_ctwindow;
bool p2p_opp_ps;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index e5b8caf5e466..4b28dc07bcb1 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1635,6 +1635,9 @@ enum nl80211_commands {
* @NL80211_ATTR_ADMITTED_TIME: admitted time in units of 32 microseconds
* (per second) (u16 attribute)
*
+ * @NL80211_ATTR_SMPS_MODE: SMPS mode to use (ap mode). see
+ * &enum nl80211_smps_mode.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1985,6 +1988,8 @@ enum nl80211_attrs {
NL80211_ATTR_USER_PRIO,
NL80211_ATTR_ADMITTED_TIME,
+ NL80211_ATTR_SMPS_MODE,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -4030,6 +4035,13 @@ enum nl80211_ap_sme_features {
* @NL80211_FEATURE_ACKTO_ESTIMATION: This driver supports dynamic ACK timeout
* estimation (dynack). %NL80211_ATTR_WIPHY_DYN_ACK flag attribute is used
* to enable dynack.
+ * @NL80211_FEATURE_STATIC_SMPS: Device supports static spatial
+ * multiplexing powersave, ie. can turn off all but one chain
+ * even on HT connections that should be using more chains.
+ * @NL80211_FEATURE_DYNAMIC_SMPS: Device supports dynamic spatial
+ * multiplexing powersave, ie. can turn off all but one chain
+ * and then wake the rest up as required after, for example,
+ * rts/cts handshake.
*/
enum nl80211_feature_flags {
NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
@@ -4056,6 +4068,8 @@ enum nl80211_feature_flags {
NL80211_FEATURE_QUIET = 1 << 21,
NL80211_FEATURE_TX_POWER_INSERTION = 1 << 22,
NL80211_FEATURE_ACKTO_ESTIMATION = 1 << 23,
+ NL80211_FEATURE_STATIC_SMPS = 1 << 24,
+ NL80211_FEATURE_DYNAMIC_SMPS = 1 << 25,
};
/**
@@ -4129,6 +4143,25 @@ enum nl80211_acl_policy {
NL80211_ACL_POLICY_DENY_UNLESS_LISTED,
};
+/**
+ * enum nl80211_smps_mode - SMPS mode
+ *
+ * Requested SMPS mode (for AP mode)
+ *
+ * @NL80211_SMPS_OFF: SMPS off (use all antennas).
+ * @NL80211_SMPS_STATIC: static SMPS (use a single antenna)
+ * @NL80211_SMPS_DYNAMIC: dynamic smps (start with a single antenna and
+ * turn on other antennas after CTS/RTS).
+ */
+enum nl80211_smps_mode {
+ NL80211_SMPS_OFF,
+ NL80211_SMPS_STATIC,
+ NL80211_SMPS_DYNAMIC,
+
+ __NL80211_SMPS_AFTER_LAST,
+ NL80211_SMPS_MAX = __NL80211_SMPS_AFTER_LAST - 1
+};
+
/**
* enum nl80211_radar_event - type of radar event for DFS operation
*
--
cgit v1.2.1
From 0d8614b4b926d0f657d15d7eb5125bcb24b9fd41 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Wed, 10 Sep 2014 14:07:36 +0300
Subject: mac80211: replace SMPS hw flags with wiphy feature bits
Use the new static_smps / dynamic_smps feature bits
instead of mac80211-internal hw flags.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c6e6a6804ee4..0ad1f47d2dc7 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1537,16 +1537,6 @@ struct ieee80211_tx_control {
* @IEEE80211_HW_MFP_CAPABLE:
* Hardware supports management frame protection (MFP, IEEE 802.11w).
*
- * @IEEE80211_HW_SUPPORTS_STATIC_SMPS:
- * Hardware supports static spatial multiplexing powersave,
- * ie. can turn off all but one chain even on HT connections
- * that should be using more chains.
- *
- * @IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS:
- * Hardware supports dynamic spatial multiplexing powersave,
- * ie. can turn off all but one chain and then wake the rest
- * up as required after, for example, rts/cts handshake.
- *
* @IEEE80211_HW_SUPPORTS_UAPSD:
* Hardware supports Unscheduled Automatic Power Save Delivery
* (U-APSD) in managed mode. The mode is configured with
@@ -1632,8 +1622,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_SUPPORTS_DYNAMIC_PS = 1<<12,
IEEE80211_HW_MFP_CAPABLE = 1<<13,
IEEE80211_HW_WANT_MONITOR_VIF = 1<<14,
- IEEE80211_HW_SUPPORTS_STATIC_SMPS = 1<<15,
- IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS = 1<<16,
+ /* free slots */
IEEE80211_HW_SUPPORTS_UAPSD = 1<<17,
IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18,
IEEE80211_HW_CONNECTION_MONITOR = 1<<19,
--
cgit v1.2.1
From fb446a1acdb981921de06bfde3a2178da7174481 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 17:36:10 +0200
Subject: drm: Simplify return value of drm_get_last_vbltimestamp
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Imo u32 hints at a register value, but in reality all callers only
care whether the sampled timestamp is precise or not. So give them
just a bool.
Also move the declaration out of drmP.h, it's only used in drm_irq.c.
v2: Also drop the EXPORT_SYMBOL, spotted by Mario.
Cc: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drmP.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 17a5c10474bd..a97307525c2d 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1320,8 +1320,6 @@ extern void drm_crtc_vblank_off(struct drm_crtc *crtc);
extern void drm_crtc_vblank_on(struct drm_crtc *crtc);
extern void drm_vblank_cleanup(struct drm_device *dev);
-extern u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc,
- struct timeval *tvblank, unsigned flags);
extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
int crtc, int *max_error,
struct timeval *vblank_time,
--
cgit v1.2.1
From 3d3cbd84300e7be1e53083cac0f6f9c12978ecb4 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 17:36:11 +0200
Subject: drm: Clarify vblank ts/scanoutpos sampling #defines
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
I've read INVBL as "invalid backlight" and got mightly confused.
The #defines are already fairly long and we can afford to extend
them a bit more without resulting in ugly code all over.
I'm not sure how useful the complicated bitmask return value of these
functions really are since no one checks them. But for now let's keep
things as is.
Cc: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index a97307525c2d..7b87fccff183 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -674,11 +674,11 @@ struct drm_master {
/* Flags and return codes for get_vblank_timestamp() driver function. */
#define DRM_CALLED_FROM_VBLIRQ 1
#define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0)
-#define DRM_VBLANKTIME_INVBL (1 << 1)
+#define DRM_VBLANKTIME_IN_VBLANK (1 << 1)
/* get_scanout_position() return flags */
#define DRM_SCANOUTPOS_VALID (1 << 0)
-#define DRM_SCANOUTPOS_INVBL (1 << 1)
+#define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
#define DRM_SCANOUTPOS_ACCURATE (1 << 2)
struct drm_bus {
--
cgit v1.2.1
From ae9c0af2c0ea92e57013ab2dd7271ba7d6b2a833 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Thu, 4 Sep 2014 20:01:52 +0200
Subject: drm/ttm: allow fence to be added as shared
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This patch adds a new flag to the ttm_validate_buffer list to
add the fence as shared to the reservation object.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
include/drm/ttm/ttm_execbuf_util.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
index ff11a424f752..460441714413 100644
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -39,11 +39,13 @@
*
* @head: list head for thread-private list.
* @bo: refcounted buffer object pointer.
+ * @shared: should the fence be added shared?
*/
struct ttm_validate_buffer {
struct list_head head;
struct ttm_buffer_object *bo;
+ bool shared;
};
/**
--
cgit v1.2.1
From 67981fefb20e717cea55b42f9081a833fa46b3be Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 11 Sep 2014 16:55:04 +0200
Subject: netfilter: fix compilation of masquerading without
IP_NF_TARGET_MASQUERADE
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
CONFIG_NF_NAT_MASQUERADE_IPV6=m
# CONFIG_IP6_NF_TARGET_MASQUERADE is not set
results in:
net/ipv6/netfilter/nf_nat_masquerade_ipv6.c: In function ‘nf_nat_masquerade_ipv6’:
net/ipv6/netfilter/nf_nat_masquerade_ipv6.c:41:14: error: ‘struct nf_conn_nat’ has no member named ‘masq_index’
nfct_nat(ct)->masq_index = out->ifindex;
^
net/ipv6/netfilter/nf_nat_masquerade_ipv6.c: In function ‘device_cmp’:
net/ipv6/netfilter/nf_nat_masquerade_ipv6.c:61:12: error: ‘const struct nf_conn_nat’ has no member named ‘masq_index’
return nat->masq_index == (int)(long)ifindex;
^
net/ipv6/netfilter/nf_nat_masquerade_ipv6.c:62:1: warning: control
reaches end of non-void function [-Wreturn-type]
}
^
make[3]: *** [net/ipv6/netfilter/nf_nat_masquerade_ipv6.o] Error 1
Fix this by using the new NF_NAT_MASQUERADE_IPV4 and _IPV6 symbols
in include/net/netfilter/nf_nat.h.
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_nat.h | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h
index a71dd333ac68..344b1ab19220 100644
--- a/include/net/netfilter/nf_nat.h
+++ b/include/net/netfilter/nf_nat.h
@@ -32,10 +32,8 @@ struct nf_conn_nat {
struct hlist_node bysource;
struct nf_conn *ct;
union nf_conntrack_nat_help help;
-#if defined(CONFIG_IP_NF_TARGET_MASQUERADE) || \
- defined(CONFIG_IP_NF_TARGET_MASQUERADE_MODULE) || \
- defined(CONFIG_IP6_NF_TARGET_MASQUERADE) || \
- defined(CONFIG_IP6_NF_TARGET_MASQUERADE_MODULE)
+#if IS_ENABLED(CONFIG_NF_NAT_MASQUERADE_IPV4) || \
+ IS_ENABLED(CONFIG_NF_NAT_MASQUERADE_IPV6)
int masq_index;
#endif
};
@@ -68,8 +66,8 @@ static inline bool nf_nat_oif_changed(unsigned int hooknum,
struct nf_conn_nat *nat,
const struct net_device *out)
{
-#if IS_ENABLED(CONFIG_IP_NF_TARGET_MASQUERADE) || \
- IS_ENABLED(CONFIG_IP6_NF_TARGET_MASQUERADE)
+#if IS_ENABLED(CONFIG_NF_NAT_MASQUERADE_IPV4) || \
+ IS_ENABLED(CONFIG_NF_NAT_MASQUERADE_IPV6)
return nat->masq_index && hooknum == NF_INET_POST_ROUTING &&
CTINFO2DIR(ctinfo) == IP_CT_DIR_ORIGINAL &&
nat->masq_index != out->ifindex;
--
cgit v1.2.1
From 39e393bb4f653d38aea40190e1aa9a49062eed4d Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 11 Sep 2014 11:02:39 +0200
Subject: netfilter: nf_tables: add NFTA_MASQ_UNSPEC to nft_masq_attributes
To keep this consistent with other nft_*_attributes.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_tables.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index eeec0ae845ef..66d66dd3ff79 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -806,6 +806,7 @@ enum nft_nat_attributes {
* @NFTA_MASQ_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
*/
enum nft_masq_attributes {
+ NFTA_MASQ_UNSPEC,
NFTA_MASQ_FLAGS,
__NFTA_MASQ_MAX
};
--
cgit v1.2.1
From 047133066e6c2549403fe5a2d619f47ba4212ef5 Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Thu, 7 Aug 2014 05:10:22 -0700
Subject: leds: Reorder include directives
Reorder include directives so that they are arranged
in alphabetical order.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
include/linux/leds.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/leds.h b/include/linux/leds.h
index e43686472197..4be2d7623d9e 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -13,8 +13,8 @@
#define __LINUX_LEDS_H_INCLUDED
#include <linux/list.h>
-#include <linux/spinlock.h>
#include <linux/rwsem.h>
+#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
--
cgit v1.2.1
From d8082827d8a214343b761f2c4554d2a7d1573d63 Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Thu, 7 Aug 2014 05:10:23 -0700
Subject: leds: make brightness type consistent across whole subsystem
Documentations states that brightness units type is enum led_brightness
and this is the type used by the led API functions. Adjust the type
of brightness variables in the struct led_classdev accordingly.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
include/linux/leds.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 4be2d7623d9e..f2e1cbc25705 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -31,8 +31,8 @@ enum led_brightness {
struct led_classdev {
const char *name;
- int brightness;
- int max_brightness;
+ enum led_brightness brightness;
+ enum led_brightness max_brightness;
int flags;
/* Lower 16 bits reflect status */
--
cgit v1.2.1
From e351943b081f4d9e6f692ce1a6117e8d2e71f478 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@fedoraproject.org>
Date: Fri, 5 Sep 2014 13:19:59 -0400
Subject: drm/vmwgfx: Fix drm.h include
The userspace drm.h include doesn't prefix the drm directory. This can lead
to compile failures as /usr/include/drm/ isn't in the standard gcc include
paths. Fix it to be <drm/drm.h>, which matches the rest of the driver drm
header files that get installed into /usr/include/drm.
Red Hat Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1138759
Fixes: 1d7a5cbf8f74e
Reported-by: Jeffrey Bastian <jbastian@redhat.com>
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/uapi/drm/vmwgfx_drm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h
index 4fc66f6b12ce..c472bedbe38e 100644
--- a/include/uapi/drm/vmwgfx_drm.h
+++ b/include/uapi/drm/vmwgfx_drm.h
@@ -29,7 +29,7 @@
#define __VMWGFX_DRM_H__
#ifndef __KERNEL__
-#include <drm.h>
+#include <drm/drm.h>
#endif
#define DRM_VMW_MAX_SURFACE_FACES 6
--
cgit v1.2.1
From fd7e0d719260259f6e4e7711bd63a4175557d559 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Wed, 10 Sep 2014 18:23:07 +1000
Subject: drm: split ati_pcigart.h out of drmP.h
Just move this into a separate header file, and make the
two users use it.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/ati_pcigart.h | 28 ++++++++++++++++++++++++++++
include/drm/drmP.h | 23 -----------------------
2 files changed, 28 insertions(+), 23 deletions(-)
create mode 100644 include/drm/ati_pcigart.h
(limited to 'include')
diff --git a/include/drm/ati_pcigart.h b/include/drm/ati_pcigart.h
new file mode 100644
index 000000000000..da4bfcd81a37
--- /dev/null
+++ b/include/drm/ati_pcigart.h
@@ -0,0 +1,28 @@
+#ifndef DRM_ATI_PCIGART_H
+#define DRM_ATI_PCIGART_H
+
+/* location of GART table */
+#define DRM_ATI_GART_MAIN 1
+#define DRM_ATI_GART_FB 2
+
+#define DRM_ATI_GART_PCI 1
+#define DRM_ATI_GART_PCIE 2
+#define DRM_ATI_GART_IGP 3
+
+struct drm_ati_pcigart_info {
+ int gart_table_location;
+ int gart_reg_if;
+ void *addr;
+ dma_addr_t bus_addr;
+ dma_addr_t table_mask;
+ struct drm_dma_handle *table_handle;
+ struct drm_local_map mapping;
+ int table_size;
+};
+
+extern int drm_ati_pcigart_init(struct drm_device *dev,
+ struct drm_ati_pcigart_info * gart_info);
+extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
+ struct drm_ati_pcigart_info * gart_info);
+
+#endif
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index be1160fa5ebc..e4ba3de22601 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -461,24 +461,6 @@ struct drm_map_list {
struct drm_master *master;
};
-/* location of GART table */
-#define DRM_ATI_GART_MAIN 1
-#define DRM_ATI_GART_FB 2
-
-#define DRM_ATI_GART_PCI 1
-#define DRM_ATI_GART_PCIE 2
-#define DRM_ATI_GART_IGP 3
-
-struct drm_ati_pcigart_info {
- int gart_table_location;
- int gart_reg_if;
- void *addr;
- dma_addr_t bus_addr;
- dma_addr_t table_mask;
- struct drm_dma_handle *table_handle;
- struct drm_local_map mapping;
- int table_size;
-};
/**
* This structure defines the drm_mm memory object, which will be used by the
@@ -1324,11 +1306,6 @@ extern int drm_sg_alloc(struct drm_device *dev, void *data,
extern int drm_sg_free(struct drm_device *dev, void *data,
struct drm_file *file_priv);
- /* ATI PCIGART support (ati_pcigart.h) */
-extern int drm_ati_pcigart_init(struct drm_device *dev,
- struct drm_ati_pcigart_info * gart_info);
-extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
- struct drm_ati_pcigart_info * gart_info);
extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
size_t align);
--
cgit v1.2.1
From a266162aef4f43307d18c88fb5ecaffd8e9303af Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu, 11 Sep 2014 07:41:51 +0200
Subject: drm: Move dma functions into drm_legacy.h
Also drop the unneeded EXPORT_SYMBOL and sprinkle drm_legacy_ prefixes
where missing.
v2: Drop the confusing _core_ and drop extern, both suggested by
David.
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 7 -------
1 file changed, 7 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 027e4c5dbf03..caf29af2dd54 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1140,13 +1140,6 @@ void drm_clflush_virt_range(void *addr, unsigned long length);
* DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
*/
- /* DMA support (drm_dma.h) */
-extern int drm_legacy_dma_setup(struct drm_device *dev);
-extern void drm_legacy_dma_takedown(struct drm_device *dev);
-extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
-extern void drm_core_reclaim_buffers(struct drm_device *dev,
- struct drm_file *filp);
-
/* IRQ support (drm_irq.h) */
extern int drm_control(struct drm_device *dev, void *data,
struct drm_file *file_priv);
--
cgit v1.2.1
From 9ec4e2ff3e269756a253282c784776e2166be7bc Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu, 11 Sep 2014 07:42:43 +0200
Subject: drm: Move sg functions into drm_legacy.h
Also sprinkle the drm_legacy_ prefix where missing.
v2: Drop extern from function declarations and include "drm_legacy.h"
in drm_scatter.c, spotted by David.
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 7 -------
1 file changed, 7 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index caf29af2dd54..cd35bc902925 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1300,13 +1300,6 @@ void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpr
extern int drm_vma_info(struct seq_file *m, void *data);
- /* Scatter Gather Support (drm_scatter.h) */
-extern void drm_legacy_sg_cleanup(struct drm_device *dev);
-extern int drm_sg_alloc(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_sg_free(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-
extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
size_t align);
--
cgit v1.2.1
From a677f4cc88b2b7491c0c400e07b6630852971e32 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:48 +0200
Subject: drm: Move drm_legacy_vma_flush into drm_legacy.h
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drmP.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index cd35bc902925..2b6d5241fe59 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1321,8 +1321,6 @@ struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev);
int drm_legacy_addbufs_agp(struct drm_device *d, struct drm_buf_desc *req);
int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
-void drm_legacy_vma_flush(struct drm_device *d);
-
void drm_legacy_idlelock_take(struct drm_lock_data *lock);
void drm_legacy_idlelock_release(struct drm_lock_data *lock);
--
cgit v1.2.1
From 4f03b1fc1eb286b73d453c03cdb45a3827726a44 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:49 +0200
Subject: drm: Create drm legacy driver header
And move a few legayc functions to start things over there.
It compiles ...
Inspired by a patch from Dave Airlie, but with a split between drm.ko
private legacy functions and stuff used by drivers.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 15 -------------
include/drm/drm_legacy.h | 58 ++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 58 insertions(+), 15 deletions(-)
create mode 100644 include/drm/drm_legacy.h
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 2b6d5241fe59..fe6db4cc0db2 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1309,21 +1309,6 @@ extern int drm_pci_set_unique(struct drm_device *dev,
struct drm_master *master,
struct drm_unique *u);
- /* Legacy Support */
-
-int drm_legacy_addmap(struct drm_device *d, resource_size_t offset,
- unsigned int size, enum drm_map_type type,
- enum drm_map_flags flags, struct drm_local_map **map_p);
-int drm_legacy_rmmap(struct drm_device *d, struct drm_local_map *map);
-int drm_legacy_rmmap_locked(struct drm_device *d, struct drm_local_map *map);
-struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev);
-
-int drm_legacy_addbufs_agp(struct drm_device *d, struct drm_buf_desc *req);
-int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
-
-void drm_legacy_idlelock_take(struct drm_lock_data *lock);
-void drm_legacy_idlelock_release(struct drm_lock_data *lock);
-
/* sysfs support (drm_sysfs.c) */
struct drm_sysfs_class;
extern struct class *drm_sysfs_create(struct module *owner, char *name);
diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h
new file mode 100644
index 000000000000..605d66081e3f
--- /dev/null
+++ b/include/drm/drm_legacy.h
@@ -0,0 +1,58 @@
+#ifndef __DRM_DRM_LEGACY_H__
+#define __DRM_DRM_LEGACY_H__
+
+/*
+ * Legacy driver interfaces for the Direct Rendering Manager
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright (c) 2009-2010, Code Aurora Forum.
+ * All rights reserved.
+ * Copyright © 2014 Intel Corporation
+ * Daniel Vetter <daniel.vetter@ffwll.ch>
+ *
+ * Author: Rickard E. (Rik) Faith <faith@valinux.com>
+ * Author: Gareth Hughes <gareth@valinux.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * Legacy Support for palateontologic DRM drivers
+ *
+ * If you add a new driver and it uses any of these functions or structures,
+ * you're doing it terribly wrong.
+ */
+
+int drm_legacy_addmap(struct drm_device *d, resource_size_t offset,
+ unsigned int size, enum drm_map_type type,
+ enum drm_map_flags flags, struct drm_local_map **map_p);
+int drm_legacy_rmmap(struct drm_device *d, struct drm_local_map *map);
+int drm_legacy_rmmap_locked(struct drm_device *d, struct drm_local_map *map);
+struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev);
+
+int drm_legacy_addbufs_agp(struct drm_device *d, struct drm_buf_desc *req);
+int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
+
+void drm_legacy_idlelock_take(struct drm_lock_data *lock);
+void drm_legacy_idlelock_release(struct drm_lock_data *lock);
+
+#endif /* __DRM_DRM_LEGACY_H__ */
--
cgit v1.2.1
From 1c96e84ee486d5dbf4a3850441f3c1f95b1343e4 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:51 +0200
Subject: drm: Move __drm_pci_free to drm_legacy.h
Also sprinkle the customary legacy_ prefix.
Unfortunately we can't move the other functions since i915 is still
using them. Shame on me for that one :(
v2: Fix patch subject as spotted by David Herrmann.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 1 -
include/drm/drm_legacy.h | 3 +++
2 files changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index fe6db4cc0db2..90b379cd07ad 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1303,7 +1303,6 @@ extern int drm_vma_info(struct seq_file *m, void *data);
extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
size_t align);
-extern void __drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
extern int drm_pci_set_unique(struct drm_device *dev,
struct drm_master *master,
diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h
index 605d66081e3f..98626317e48b 100644
--- a/include/drm/drm_legacy.h
+++ b/include/drm/drm_legacy.h
@@ -55,4 +55,7 @@ int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
void drm_legacy_idlelock_take(struct drm_lock_data *lock);
void drm_legacy_idlelock_release(struct drm_lock_data *lock);
+/* drm_pci.c dma alloc wrappers */
+void __drm_legacy_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
+
#endif /* __DRM_DRM_LEGACY_H__ */
--
cgit v1.2.1
From 7610a04c008768abf8a372d2358e7629877b8305 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:52 +0200
Subject: drm: Drop drm_sysfs_class from drmP.h
No user at all.
My guess is that this is a leftover from ttm before it used
the more abstract helpers to register/unregister its sysfs
objects (see drm_sysfs.h). At least in the existing history
it was never used.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 90b379cd07ad..3ca7b14f4f45 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1309,7 +1309,6 @@ extern int drm_pci_set_unique(struct drm_device *dev,
struct drm_unique *u);
/* sysfs support (drm_sysfs.c) */
-struct drm_sysfs_class;
extern struct class *drm_sysfs_create(struct module *owner, char *name);
extern void drm_sysfs_destroy(void);
extern struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
--
cgit v1.2.1
From 18882995713d2ebdd24d6b07f1853a866a7e1b66 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 08:16:10 +0200
Subject: drm: Move vblank related module options into drm_irq.c
This allows us to drop 2 header declarations from drmP.h. The 3rd one
is also used in drm_ioctl.c, so for that create a new drm_internal.h
header for non-legacy non-kms (since we have internal headers for
those parts already) declarations private to drm.ko.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 3ca7b14f4f45..90ae120b2c29 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1207,10 +1207,6 @@ extern void drm_put_dev(struct drm_device *dev);
extern void drm_unplug_dev(struct drm_device *dev);
extern unsigned int drm_debug;
-extern int drm_vblank_offdelay;
-extern unsigned int drm_timestamp_precision;
-extern unsigned int drm_timestamp_monotonic;
-
extern struct class *drm_class;
/* Debugfs support */
--
cgit v1.2.1
From 67d0ec4e885cd2af861a14bb9bd59fd23e9644ae Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:53 +0200
Subject: drm: Move piles of functions from drmP.h to drm_internal.h
This way drivers can't grow crazy ideas any more, and it also
helps a bit in reviewing EXPORT_SYMBOLS.
v2: Even more stuff. Unfortunately we can't move drm_vm_open_locked
because exynos does some horrible stuff with it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 55 ------------------------------------------------------
1 file changed, 55 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 90ae120b2c29..52198870bba7 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1084,7 +1084,6 @@ extern long drm_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg);
extern long drm_compat_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg);
-extern int drm_lastclose(struct drm_device *dev);
extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);
/* Device support (drm_fops.h) */
@@ -1096,14 +1095,10 @@ extern int drm_release(struct inode *inode, struct file *filp);
/* Mapping support (drm_vm.h) */
extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
-extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma);
-extern void drm_vm_close_locked(struct drm_device *dev, struct vm_area_struct *vma);
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
/* Misc. IOCTL support (drm_ioctl.h) */
-extern int drm_irq_by_busid(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
extern int drm_getunique(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int drm_setunique(struct drm_device *dev, void *data,
@@ -1123,13 +1118,6 @@ extern int drm_setversion(struct drm_device *dev, void *data,
extern int drm_noop(struct drm_device *dev, void *data,
struct drm_file *file_priv);
- /* Authentication IOCTL support (drm_auth.h) */
-extern int drm_getmagic(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_authmagic(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_remove_magic(struct drm_master *master, drm_magic_t magic);
-
/* Cache management (drm_cache.c) */
void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
void drm_clflush_sg(struct sg_table *st);
@@ -1141,8 +1129,6 @@ void drm_clflush_virt_range(void *addr, unsigned long length);
*/
/* IRQ support (drm_irq.h) */
-extern int drm_control(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
extern int drm_irq_install(struct drm_device *dev, int irq);
extern int drm_irq_uninstall(struct drm_device *dev);
@@ -1256,15 +1242,6 @@ static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
#endif
- /* Info file support */
-extern int drm_name_info(struct seq_file *m, void *data);
-extern int drm_vm_info(struct seq_file *m, void *data);
-extern int drm_bufs_info(struct seq_file *m, void *data);
-extern int drm_vblank_info(struct seq_file *m, void *data);
-extern int drm_clients_info(struct seq_file *m, void* data);
-extern int drm_gem_name_info(struct seq_file *m, void *data);
-
-
extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
struct drm_gem_object *obj, int flags);
extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
@@ -1276,11 +1253,6 @@ extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
struct drm_file *file_priv, int prime_fd, uint32_t *handle);
extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
-extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-
extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
dma_addr_t *addrs, int max_pages);
extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
@@ -1290,31 +1262,15 @@ int drm_gem_dumb_destroy(struct drm_file *file,
struct drm_device *dev,
uint32_t handle);
-void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv);
-void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv);
-void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private *prime_fpriv, struct dma_buf *dma_buf);
-
-extern int drm_vma_info(struct seq_file *m, void *data);
-
extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
size_t align);
extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
-extern int drm_pci_set_unique(struct drm_device *dev,
- struct drm_master *master,
- struct drm_unique *u);
/* sysfs support (drm_sysfs.c) */
-extern struct class *drm_sysfs_create(struct module *owner, char *name);
-extern void drm_sysfs_destroy(void);
-extern struct device *drm_sysfs_minor_alloc(struct drm_minor *minor);
extern void drm_sysfs_hotplug_event(struct drm_device *dev);
-extern int drm_sysfs_connector_add(struct drm_connector *connector);
-extern void drm_sysfs_connector_remove(struct drm_connector *connector);
/* Graphics Execution Manager library functions (drm_gem.c) */
-int drm_gem_init(struct drm_device *dev);
-void drm_gem_destroy(struct drm_device *dev);
void drm_gem_object_release(struct drm_gem_object *obj);
void drm_gem_object_free(struct kref *kref);
int drm_gem_object_init(struct drm_device *dev,
@@ -1353,9 +1309,6 @@ drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
}
}
-int drm_gem_handle_create_tail(struct drm_file *file_priv,
- struct drm_gem_object *obj,
- u32 *handlep);
int drm_gem_handle_create(struct drm_file *file_priv,
struct drm_gem_object *obj,
u32 *handlep);
@@ -1373,14 +1326,6 @@ void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
struct drm_file *filp,
u32 handle);
-int drm_gem_close_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-int drm_gem_open_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-void drm_gem_open(struct drm_device *dev, struct drm_file *file_private);
-void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
--
cgit v1.2.1
From 44af3f5c6a2dc0358121b5ecf272361b3290649e Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:54 +0200
Subject: drm: unexport drm_global_mutex
Drivers really, really have no business even looking at this lock. And
thankfully they don't.
So unexport it and move the declaration to drm_internal.h.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 52198870bba7..ef675dbaccee 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1087,7 +1087,6 @@ extern long drm_compat_ioctl(struct file *filp,
extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);
/* Device support (drm_fops.h) */
-extern struct mutex drm_global_mutex;
extern int drm_open(struct inode *inode, struct file *filp);
extern ssize_t drm_read(struct file *filp, char __user *buffer,
size_t count, loff_t *offset);
--
cgit v1.2.1
From 78238757ebab54bf0d546dabe119f3a158d418b4 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:55 +0200
Subject: drm: Purge ioctl forward declarations from drmP.h
If we push down the ioctl table in drm_ioctl.c all the forward
declarations in drmP.h are not required any more.
v2: Fold in fixup from Fenugguang Wu to declare functions as static.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 22 +++-------------------
1 file changed, 3 insertions(+), 19 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index ef675dbaccee..ac4ca4b59fdf 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1097,25 +1097,9 @@ extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma);
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
- /* Misc. IOCTL support (drm_ioctl.h) */
-extern int drm_getunique(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_setunique(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_getmap(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_getclient(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_getstats(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_getcap(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_setclientcap(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_setversion(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_noop(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
+/* Misc. IOCTL support (drm_ioctl.c) */
+int drm_noop(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
/* Cache management (drm_cache.c) */
void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
--
cgit v1.2.1
From 86c1fbd55c6abc72496a45b7cbf1940324983977 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:56 +0200
Subject: drm: Move drm_memory.c map support declarations to <drm/drm_legacy.h>
And replace the drm_core_ prefix with drm_legacy_ since really, this
isn't core stuff.
Also drop drm_core_dropmap since it's unused.
v2: Fix up i810.ko fully which somehow slipped through.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 18 ------------------
include/drm/drm_legacy.h | 15 +++++++++++++++
2 files changed, 15 insertions(+), 18 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index ac4ca4b59fdf..4a72db4b4329 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1310,24 +1310,6 @@ struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
struct drm_file *filp,
u32 handle);
-extern void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev);
-extern void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
-extern void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
-
-static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev,
- unsigned int token)
-{
- struct drm_map_list *_entry;
- list_for_each_entry(_entry, &dev->maplist, head)
- if (_entry->user_token == token)
- return _entry->map;
- return NULL;
-}
-
-static __inline__ void drm_core_dropmap(struct drm_local_map *map)
-{
-}
-
struct drm_device *drm_dev_alloc(struct drm_driver *driver,
struct device *parent);
void drm_dev_ref(struct drm_device *dev);
diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h
index 98626317e48b..cc6e528069a8 100644
--- a/include/drm/drm_legacy.h
+++ b/include/drm/drm_legacy.h
@@ -58,4 +58,19 @@ void drm_legacy_idlelock_release(struct drm_lock_data *lock);
/* drm_pci.c dma alloc wrappers */
void __drm_legacy_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
+/* drm_memory.c */
+void drm_legacy_ioremap(struct drm_local_map *map, struct drm_device *dev);
+void drm_legacy_ioremap_wc(struct drm_local_map *map, struct drm_device *dev);
+void drm_legacy_ioremapfree(struct drm_local_map *map, struct drm_device *dev);
+
+static __inline__ struct drm_local_map *drm_legacy_findmap(struct drm_device *dev,
+ unsigned int token)
+{
+ struct drm_map_list *_entry;
+ list_for_each_entry(_entry, &dev->maplist, head)
+ if (_entry->user_token == token)
+ return _entry->map;
+ return NULL;
+}
+
#endif /* __DRM_DRM_LEGACY_H__ */
--
cgit v1.2.1
From ba8286fab52652e431784d066b075c1bb4933ea1 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu, 11 Sep 2014 07:43:25 +0200
Subject: drm: Move legacy buffer structures to <drm/drm_legacy.h>
A few odd cases:
- mgag200 someho had a totally unused drm_dma_handle_t. Remove it.
- i915 still uses the legacy pci dma alloc api, so grows an include.
Everything else fairly standard.
v2: Include "drm_legacy.h" in drm.ko source files for consistency.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/ati_pcigart.h | 2 +
include/drm/drmP.h | 119 +++-------------------------------------------
include/drm/drm_legacy.h | 109 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 117 insertions(+), 113 deletions(-)
(limited to 'include')
diff --git a/include/drm/ati_pcigart.h b/include/drm/ati_pcigart.h
index da4bfcd81a37..5765648b5ef7 100644
--- a/include/drm/ati_pcigart.h
+++ b/include/drm/ati_pcigart.h
@@ -1,6 +1,8 @@
#ifndef DRM_ATI_PCIGART_H
#define DRM_ATI_PCIGART_H
+#include <drm/drm_legacy.h>
+
/* location of GART table */
#define DRM_ATI_GART_MAIN 1
#define DRM_ATI_GART_FB 2
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 4a72db4b4329..0d68ecdb447a 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -79,6 +79,9 @@ struct module;
struct drm_file;
struct drm_device;
struct drm_agp_head;
+struct drm_local_map;
+struct drm_device_dma;
+struct drm_dma_handle;
struct device_node;
struct videomode;
@@ -275,57 +278,6 @@ struct drm_ioctl_desc {
#define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \
[DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl}
-/**
- * DMA buffer.
- */
-struct drm_buf {
- int idx; /**< Index into master buflist */
- int total; /**< Buffer size */
- int order; /**< log-base-2(total) */
- int used; /**< Amount of buffer in use (for DMA) */
- unsigned long offset; /**< Byte offset (used internally) */
- void *address; /**< Address of buffer */
- unsigned long bus_address; /**< Bus address of buffer */
- struct drm_buf *next; /**< Kernel-only: used for free list */
- __volatile__ int waiting; /**< On kernel DMA queue */
- __volatile__ int pending; /**< On hardware DMA queue */
- struct drm_file *file_priv; /**< Private of holding file descr */
- int context; /**< Kernel queue for this buffer */
- int while_locked; /**< Dispatch this buffer while locked */
- enum {
- DRM_LIST_NONE = 0,
- DRM_LIST_FREE = 1,
- DRM_LIST_WAIT = 2,
- DRM_LIST_PEND = 3,
- DRM_LIST_PRIO = 4,
- DRM_LIST_RECLAIM = 5
- } list; /**< Which list we're on */
-
- int dev_priv_size; /**< Size of buffer private storage */
- void *dev_private; /**< Per-buffer private storage */
-};
-
-typedef struct drm_dma_handle {
- dma_addr_t busaddr;
- void *vaddr;
- size_t size;
-} drm_dma_handle_t;
-
-/**
- * Buffer entry. There is one of this for each buffer size order.
- */
-struct drm_buf_entry {
- int buf_size; /**< size */
- int buf_count; /**< number of buffers */
- struct drm_buf *buflist; /**< buffer list */
- int seg_count;
- int page_order;
- struct drm_dma_handle **seglist;
-
- int low_mark; /**< Low water mark */
- int high_mark; /**< High water mark */
-};
-
/* Event queued up for userspace to read */
struct drm_pending_event {
struct drm_event *event;
@@ -403,65 +355,6 @@ struct drm_lock_data {
int idle_has_lock;
};
-/**
- * DMA data.
- */
-struct drm_device_dma {
-
- struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
- int buf_count; /**< total number of buffers */
- struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
- int seg_count;
- int page_count; /**< number of pages */
- unsigned long *pagelist; /**< page list */
- unsigned long byte_count;
- enum {
- _DRM_DMA_USE_AGP = 0x01,
- _DRM_DMA_USE_SG = 0x02,
- _DRM_DMA_USE_FB = 0x04,
- _DRM_DMA_USE_PCI_RO = 0x08
- } flags;
-
-};
-
-/**
- * Scatter-gather memory.
- */
-struct drm_sg_mem {
- unsigned long handle;
- void *virtual;
- int pages;
- struct page **pagelist;
- dma_addr_t *busaddr;
-};
-
-/**
- * Kernel side of a mapping
- */
-struct drm_local_map {
- resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
- unsigned long size; /**< Requested physical size (bytes) */
- enum drm_map_type type; /**< Type of memory to map */
- enum drm_map_flags flags; /**< Flags */
- void *handle; /**< User-space: "Handle" to pass to mmap() */
- /**< Kernel-space: kernel-virtual address */
- int mtrr; /**< MTRR slot used */
-};
-
-typedef struct drm_local_map drm_local_map_t;
-
-/**
- * Mappings list
- */
-struct drm_map_list {
- struct list_head head; /**< list head */
- struct drm_hash_item hash;
- struct drm_local_map *map; /**< mapping */
- uint64_t user_token;
- struct drm_master *master;
-};
-
-
/**
* This structure defines the drm_mm memory object, which will be used by the
* DRM for its buffer objects.
@@ -1246,9 +1139,9 @@ int drm_gem_dumb_destroy(struct drm_file *file,
uint32_t handle);
-extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
- size_t align);
-extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
+extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size,
+ size_t align);
+extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah);
/* sysfs support (drm_sysfs.c) */
extern void drm_sysfs_hotplug_event(struct drm_device *dev);
diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h
index cc6e528069a8..a0fabf7624ea 100644
--- a/include/drm/drm_legacy.h
+++ b/include/drm/drm_legacy.h
@@ -42,6 +42,115 @@
* you're doing it terribly wrong.
*/
+/**
+ * DMA buffer.
+ */
+struct drm_buf {
+ int idx; /**< Index into master buflist */
+ int total; /**< Buffer size */
+ int order; /**< log-base-2(total) */
+ int used; /**< Amount of buffer in use (for DMA) */
+ unsigned long offset; /**< Byte offset (used internally) */
+ void *address; /**< Address of buffer */
+ unsigned long bus_address; /**< Bus address of buffer */
+ struct drm_buf *next; /**< Kernel-only: used for free list */
+ __volatile__ int waiting; /**< On kernel DMA queue */
+ __volatile__ int pending; /**< On hardware DMA queue */
+ struct drm_file *file_priv; /**< Private of holding file descr */
+ int context; /**< Kernel queue for this buffer */
+ int while_locked; /**< Dispatch this buffer while locked */
+ enum {
+ DRM_LIST_NONE = 0,
+ DRM_LIST_FREE = 1,
+ DRM_LIST_WAIT = 2,
+ DRM_LIST_PEND = 3,
+ DRM_LIST_PRIO = 4,
+ DRM_LIST_RECLAIM = 5
+ } list; /**< Which list we're on */
+
+ int dev_priv_size; /**< Size of buffer private storage */
+ void *dev_private; /**< Per-buffer private storage */
+};
+
+typedef struct drm_dma_handle {
+ dma_addr_t busaddr;
+ void *vaddr;
+ size_t size;
+} drm_dma_handle_t;
+
+/**
+ * Buffer entry. There is one of this for each buffer size order.
+ */
+struct drm_buf_entry {
+ int buf_size; /**< size */
+ int buf_count; /**< number of buffers */
+ struct drm_buf *buflist; /**< buffer list */
+ int seg_count;
+ int page_order;
+ struct drm_dma_handle **seglist;
+
+ int low_mark; /**< Low water mark */
+ int high_mark; /**< High water mark */
+};
+
+/**
+ * DMA data.
+ */
+struct drm_device_dma {
+
+ struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
+ int buf_count; /**< total number of buffers */
+ struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */
+ int seg_count;
+ int page_count; /**< number of pages */
+ unsigned long *pagelist; /**< page list */
+ unsigned long byte_count;
+ enum {
+ _DRM_DMA_USE_AGP = 0x01,
+ _DRM_DMA_USE_SG = 0x02,
+ _DRM_DMA_USE_FB = 0x04,
+ _DRM_DMA_USE_PCI_RO = 0x08
+ } flags;
+
+};
+
+/**
+ * Scatter-gather memory.
+ */
+struct drm_sg_mem {
+ unsigned long handle;
+ void *virtual;
+ int pages;
+ struct page **pagelist;
+ dma_addr_t *busaddr;
+};
+
+/**
+ * Kernel side of a mapping
+ */
+struct drm_local_map {
+ resource_size_t offset; /**< Requested physical address (0 for SAREA)*/
+ unsigned long size; /**< Requested physical size (bytes) */
+ enum drm_map_type type; /**< Type of memory to map */
+ enum drm_map_flags flags; /**< Flags */
+ void *handle; /**< User-space: "Handle" to pass to mmap() */
+ /**< Kernel-space: kernel-virtual address */
+ int mtrr; /**< MTRR slot used */
+};
+
+typedef struct drm_local_map drm_local_map_t;
+
+/**
+ * Mappings list
+ */
+struct drm_map_list {
+ struct list_head head; /**< list head */
+ struct drm_hash_item hash;
+ struct drm_local_map *map; /**< mapping */
+ uint64_t user_token;
+ struct drm_master *master;
+};
+
int drm_legacy_addmap(struct drm_device *d, resource_size_t offset,
unsigned int size, enum drm_map_type type,
enum drm_map_flags flags, struct drm_local_map **map_p);
--
cgit v1.2.1
From 8f1a2c8dc0dc5c2842e08f304ebdd34b5ddb982c Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:58 +0200
Subject: drm: Move LOCK_TEST_WITH_RETURN to <drm/drm_legacy.h>
Unfortunately we can't move struct drm_lock_data easily since
it's embedded into struct drm_master. And figuring out where exactly
this struct should be allocated isn't that simple ...
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 17 -----------------
include/drm/drm_legacy.h | 17 +++++++++++++++++
2 files changed, 17 insertions(+), 17 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 0d68ecdb447a..0308214a6f83 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -221,23 +221,6 @@ int drm_err(const char *func, const char *format, ...);
#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
-/**
- * Test that the hardware lock is held by the caller, returning otherwise.
- *
- * \param dev DRM device.
- * \param filp file pointer of the caller.
- */
-#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
-do { \
- if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
- _file_priv->master->lock.file_priv != _file_priv) { \
- DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
- __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
- _file_priv->master->lock.file_priv, _file_priv); \
- return -EINVAL; \
- } \
-} while (0)
-
/**
* Ioctl function type.
*
diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h
index a0fabf7624ea..6486306beb0d 100644
--- a/include/drm/drm_legacy.h
+++ b/include/drm/drm_legacy.h
@@ -161,6 +161,23 @@ struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev);
int drm_legacy_addbufs_agp(struct drm_device *d, struct drm_buf_desc *req);
int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
+/**
+ * Test that the hardware lock is held by the caller, returning otherwise.
+ *
+ * \param dev DRM device.
+ * \param filp file pointer of the caller.
+ */
+#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \
+do { \
+ if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \
+ _file_priv->master->lock.file_priv != _file_priv) { \
+ DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\
+ __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\
+ _file_priv->master->lock.file_priv, _file_priv); \
+ return -EINVAL; \
+ } \
+} while (0)
+
void drm_legacy_idlelock_take(struct drm_lock_data *lock);
void drm_legacy_idlelock_release(struct drm_lock_data *lock);
--
cgit v1.2.1
From 00285be8ff2c07379d4809ed2750f8244f0c23fa Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:43:59 +0200
Subject: drm: Move drm_class to drm_internal.h
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 0308214a6f83..b603cb42e347 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1052,8 +1052,6 @@ extern void drm_put_dev(struct drm_device *dev);
extern void drm_unplug_dev(struct drm_device *dev);
extern unsigned int drm_debug;
-extern struct class *drm_class;
-
/* Debugfs support */
#if defined(CONFIG_DEBUG_FS)
extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
--
cgit v1.2.1
From 6865b20ad354548a045c74a388eb37afe1ad5174 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 10 Sep 2014 12:44:00 +0200
Subject: drm: Move DRM_MAGIC_HASH_ORDER into drm_drv.c
Only used in one place ever, so put it right next to that.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index b603cb42e347..5c60d384b37b 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -142,14 +142,6 @@ int drm_err(const char *func, const char *format, ...);
#define DRIVER_PRIME 0x4000
#define DRIVER_RENDER 0x8000
-/***********************************************************************/
-/** \name Begin the DRM... */
-/*@{*/
-
-#define DRM_MAGIC_HASH_ORDER 4 /**< Size of key hash table. Must be power of 2. */
-
-/*@}*/
-
/***********************************************************************/
/** \name Macros to make printk easier */
/*@{*/
--
cgit v1.2.1
From 974a70bdecea5296db1b643e4046ef208e99c592 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Fri, 12 Sep 2014 09:32:41 +0800
Subject: usb: gadget: udc-core: add utility for bus reset
The udc driver can notify the udc core that bus reset occurs by
calling this utility, the core will notify gadget driver this
information and update gadget state accordingly.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/gadget.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 598a6e9b2850..d18811433324 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -1017,6 +1017,12 @@ extern void usb_gadget_set_state(struct usb_gadget *gadget,
/*-------------------------------------------------------------------------*/
+/* utility to tell udc core that the bus reset occurs */
+extern void usb_gadget_udc_reset(struct usb_gadget *gadget,
+ struct usb_gadget_driver *driver);
+
+/*-------------------------------------------------------------------------*/
+
/* utility wrapping a simple endpoint selection policy */
extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *,
--
cgit v1.2.1
From f3a808817fdb48a9fa3e4ed40e7f8a8dec50014c Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sat, 16 Aug 2014 14:15:34 -0700
Subject: drm: fix drm_modeset_lock.h kernel-doc notation
Fix drm kernel-doc notation to squelch these warnings:
Warning(..//include/drm/drm_modeset_lock.h:41): cannot understand function prototype: 'struct drm_modeset_acquire_ctx '
Warning(..//include/drm/drm_modeset_lock.h:66): cannot understand function prototype: 'struct drm_modeset_lock '
Need to include the keyword 'struct' for structure descriptions.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_modeset_lock.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index a3f736d24382..75a5c45e21c7 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -29,7 +29,7 @@
struct drm_modeset_lock;
/**
- * drm_modeset_acquire_ctx - locking context (see ww_acquire_ctx)
+ * struct drm_modeset_acquire_ctx - locking context (see ww_acquire_ctx)
* @ww_ctx: base acquire ctx
* @contended: used internally for -EDEADLK handling
* @locked: list of held locks
@@ -61,7 +61,7 @@ struct drm_modeset_acquire_ctx {
};
/**
- * drm_modeset_lock - used for locking modeset resources.
+ * struct drm_modeset_lock - used for locking modeset resources.
* @mutex: resource locking
* @head: used to hold it's place on state->locked list when
* part of an atomic update
--
cgit v1.2.1
From d4b18c3e00b8d18fbd316abe9639b91ad416e1f3 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 10 Sep 2014 17:36:31 -0700
Subject: pnfs: remove GETDEVICELIST implementation
The current GETDEVICELIST implementation is buggy in that it doesn't handle
cursors correctly, and in that it returns an error if the server returns
NFSERR_NOTSUPP. Given that there is no actual need for GETDEVICELIST,
it has various issues and might get removed for NFSv4.2 stop using it in
the blocklayout driver, and thus the Linux NFS client as whole.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs_xdr.h | 11 -----------
1 file changed, 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index f4092c6b90fb..7ae249ccb78d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -252,17 +252,6 @@ struct nfs4_layoutget {
gfp_t gfp_flags;
};
-struct nfs4_getdevicelist_args {
- struct nfs4_sequence_args seq_args;
- const struct nfs_fh *fh;
- u32 layoutclass;
-};
-
-struct nfs4_getdevicelist_res {
- struct nfs4_sequence_res seq_res;
- struct pnfs_devicelist *devlist;
-};
-
struct nfs4_getdeviceinfo_args {
struct nfs4_sequence_args seq_args;
struct pnfs_device *pdev;
--
cgit v1.2.1
From f418c64b71590bac8fdebd0969a1eeaffaf036d2 Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Wed, 3 Sep 2014 12:19:07 -0400
Subject: NFS: Unconditionally enable commit code
The goal is to create a generic NFS module with code that does not
depend on what versions of NFS are enabled.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs_fs.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 5180a7ededec..fd334d4b0d41 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -529,17 +529,9 @@ extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned
extern int nfs_wb_all(struct inode *inode);
extern int nfs_wb_page(struct inode *inode, struct page* page);
extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
-#if IS_ENABLED(CONFIG_NFS_V3) || IS_ENABLED(CONFIG_NFS_V4)
extern int nfs_commit_inode(struct inode *, int);
extern struct nfs_commit_data *nfs_commitdata_alloc(void);
extern void nfs_commit_free(struct nfs_commit_data *data);
-#else
-static inline int
-nfs_commit_inode(struct inode *inode, int how)
-{
- return 0;
-}
-#endif
static inline int
nfs_have_writebacks(struct inode *inode)
--
cgit v1.2.1
From cb8c20fa53ec28602793ee43ddc7e8883be62e69 Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Wed, 3 Sep 2014 12:19:10 -0400
Subject: NFS: Move NFS v3 acl functions to nfs3_fs.h
This code is internal to the v3 module, so other parts of the client
shouldn't have any knowledge of it.
nfs3_getxattr(), nfs3_setxattr(), and nfs3_removexattr() no longer exist
anywhere so I remove the declarations while I'm here.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs_fs.h | 33 ---------------------------------
1 file changed, 33 deletions(-)
(limited to 'include')
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index fd334d4b0d41..28d649054d5f 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -442,22 +442,6 @@ static inline struct rpc_cred *nfs_file_cred(struct file *file)
return NULL;
}
-/*
- * linux/fs/nfs/xattr.c
- */
-#ifdef CONFIG_NFS_V3_ACL
-extern ssize_t nfs3_listxattr(struct dentry *, char *, size_t);
-extern ssize_t nfs3_getxattr(struct dentry *, const char *, void *, size_t);
-extern int nfs3_setxattr(struct dentry *, const char *,
- const void *, size_t, int);
-extern int nfs3_removexattr (struct dentry *, const char *name);
-#else
-# define nfs3_listxattr NULL
-# define nfs3_getxattr NULL
-# define nfs3_setxattr NULL
-# define nfs3_removexattr NULL
-#endif
-
/*
* linux/fs/nfs/direct.c
*/
@@ -548,23 +532,6 @@ extern int nfs_readpages(struct file *, struct address_space *,
extern int nfs_readpage_async(struct nfs_open_context *, struct inode *,
struct page *);
-/*
- * linux/fs/nfs3proc.c
- */
-#ifdef CONFIG_NFS_V3_ACL
-extern struct posix_acl *nfs3_get_acl(struct inode *inode, int type);
-extern int nfs3_set_acl(struct inode *inode, struct posix_acl *acl, int type);
-extern int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
- struct posix_acl *dfacl);
-extern const struct xattr_handler *nfs3_xattr_handlers[];
-#else
-static inline int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
- struct posix_acl *dfacl)
-{
- return 0;
-}
-#endif /* CONFIG_NFS_V3_ACL */
-
/*
* inline functions
*/
--
cgit v1.2.1
From 3ef7de5304edf60d0b8674dd7cdacc104e15a93c Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Wed, 20 Aug 2014 06:41:55 -0700
Subject: leds: Improve and export led_update_brightness
led_update_brightness helper function used to be exploited only locally
in the led-class.c module, where its result was being passed to the
brightness_show sysfs callback. With the introduction of v4l2-flash
subdevice the same functionality becomes required for reading current
brightness from a LED device. This patch adds checking of return value
of the brightness_get callback and moves the led_update_brightness()
function to the LED subsystem public API.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
include/linux/leds.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/leds.h b/include/linux/leds.h
index f2e1cbc25705..a57611d0c94e 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -140,6 +140,16 @@ extern void led_blink_set_oneshot(struct led_classdev *led_cdev,
*/
extern void led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness brightness);
+/**
+ * led_update_brightness - update LED brightness
+ * @led_cdev: the LED to query
+ *
+ * Get an LED's current brightness and update led_cdev->brightness
+ * member with the obtained value.
+ *
+ * Returns: 0 on success or negative error value on failure
+ */
+extern int led_update_brightness(struct led_classdev *led_cdev);
/*
* LED Triggers
--
cgit v1.2.1
From fbfa398b84a5fc6e085dedba5ec3e94f21815d05 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 28 Aug 2014 12:21:44 -0600
Subject: PCI: Remove unused pci_configure_slot()
All pci_configure_slot() uses have been removed, so remove the definition
as well.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---
include/linux/pci_hotplug.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 5f2e559af6b0..2706ee9a4327 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -187,6 +187,4 @@ static inline int pci_get_hp_params(struct pci_dev *dev,
return -ENODEV;
}
#endif
-
-void pci_configure_slot(struct pci_dev *dev);
#endif
--
cgit v1.2.1
From 46e5da40aec256155cfedee96dd21a75da941f2c Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Fri, 12 Sep 2014 20:04:52 -0700
Subject: net: qdisc: use rcu prefix and silence sparse warnings
Add __rcu notation to qdisc handling by doing this we can make
smatch output more legible. And anyways some of the cases should
be using rcu_dereference() see qdisc_all_tx_empty(),
qdisc_tx_chainging(), and so on.
Also *wake_queue() API is commonly called from driver timer routines
without rcu lock or rtnl lock. So I added rcu_read_lock() blocks
around netif_wake_subqueue and netif_tx_wake_queue.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 29 ++++-------------------------
include/net/sch_generic.h | 21 +++++++++++++++------
2 files changed, 19 insertions(+), 31 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ba72f6baae1a..ae721f53739e 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -543,7 +543,7 @@ struct netdev_queue {
* read mostly part
*/
struct net_device *dev;
- struct Qdisc *qdisc;
+ struct Qdisc __rcu *qdisc;
struct Qdisc *qdisc_sleeping;
#ifdef CONFIG_SYSFS
struct kobject kobj;
@@ -2356,12 +2356,7 @@ static inline void input_queue_tail_incr_save(struct softnet_data *sd,
DECLARE_PER_CPU_ALIGNED(struct softnet_data, softnet_data);
void __netif_schedule(struct Qdisc *q);
-
-static inline void netif_schedule_queue(struct netdev_queue *txq)
-{
- if (!(txq->state & QUEUE_STATE_ANY_XOFF))
- __netif_schedule(txq->qdisc);
-}
+void netif_schedule_queue(struct netdev_queue *txq);
static inline void netif_tx_schedule_all(struct net_device *dev)
{
@@ -2397,11 +2392,7 @@ static inline void netif_tx_start_all_queues(struct net_device *dev)
}
}
-static inline void netif_tx_wake_queue(struct netdev_queue *dev_queue)
-{
- if (test_and_clear_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state))
- __netif_schedule(dev_queue->qdisc);
-}
+void netif_tx_wake_queue(struct netdev_queue *dev_queue);
/**
* netif_wake_queue - restart transmit
@@ -2673,19 +2664,7 @@ static inline bool netif_subqueue_stopped(const struct net_device *dev,
return __netif_subqueue_stopped(dev, skb_get_queue_mapping(skb));
}
-/**
- * netif_wake_subqueue - allow sending packets on subqueue
- * @dev: network device
- * @queue_index: sub queue index
- *
- * Resume individual transmit queue of a device with multiple transmit queues.
- */
-static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index)
-{
- struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
- if (test_and_clear_bit(__QUEUE_STATE_DRV_XOFF, &txq->state))
- __netif_schedule(txq->qdisc);
-}
+void netif_wake_subqueue(struct net_device *dev, u16 queue_index);
#ifdef CONFIG_XPS
int netif_set_xps_queue(struct net_device *dev, const struct cpumask *mask,
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index a3cfb8ebeb53..56838ab29b42 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -259,7 +259,9 @@ static inline spinlock_t *qdisc_lock(struct Qdisc *qdisc)
static inline struct Qdisc *qdisc_root(const struct Qdisc *qdisc)
{
- return qdisc->dev_queue->qdisc;
+ struct Qdisc *q = rcu_dereference_rtnl(qdisc->dev_queue->qdisc);
+
+ return q;
}
static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
@@ -384,7 +386,7 @@ static inline void qdisc_reset_all_tx_gt(struct net_device *dev, unsigned int i)
struct Qdisc *qdisc;
for (; i < dev->num_tx_queues; i++) {
- qdisc = netdev_get_tx_queue(dev, i)->qdisc;
+ qdisc = rtnl_dereference(netdev_get_tx_queue(dev, i)->qdisc);
if (qdisc) {
spin_lock_bh(qdisc_lock(qdisc));
qdisc_reset(qdisc);
@@ -402,13 +404,18 @@ static inline void qdisc_reset_all_tx(struct net_device *dev)
static inline bool qdisc_all_tx_empty(const struct net_device *dev)
{
unsigned int i;
+
+ rcu_read_lock();
for (i = 0; i < dev->num_tx_queues; i++) {
struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
- const struct Qdisc *q = txq->qdisc;
+ const struct Qdisc *q = rcu_dereference(txq->qdisc);
- if (q->q.qlen)
+ if (q->q.qlen) {
+ rcu_read_unlock();
return false;
+ }
}
+ rcu_read_unlock();
return true;
}
@@ -416,9 +423,10 @@ static inline bool qdisc_all_tx_empty(const struct net_device *dev)
static inline bool qdisc_tx_changing(const struct net_device *dev)
{
unsigned int i;
+
for (i = 0; i < dev->num_tx_queues; i++) {
struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
- if (txq->qdisc != txq->qdisc_sleeping)
+ if (rcu_access_pointer(txq->qdisc) != txq->qdisc_sleeping)
return true;
}
return false;
@@ -428,9 +436,10 @@ static inline bool qdisc_tx_changing(const struct net_device *dev)
static inline bool qdisc_tx_is_noop(const struct net_device *dev)
{
unsigned int i;
+
for (i = 0; i < dev->num_tx_queues; i++) {
struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
- if (txq->qdisc != &noop_qdisc)
+ if (rcu_access_pointer(txq->qdisc) != &noop_qdisc)
return false;
}
return true;
--
cgit v1.2.1
From 25d8c0d55f241ce2d360df1bea48e23a55836ee6 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Fri, 12 Sep 2014 20:05:27 -0700
Subject: net: rcu-ify tcf_proto
rcu'ify tcf_proto this allows calling tc_classify() without holding
any locks. Updaters are protected by RTNL.
This patch prepares the core net_sched infrastracture for running
the classifier/action chains without holding the qdisc lock however
it does nothing to ensure cls_xxx and act_xxx types also work without
locking. Additional patches are required to address the fall out.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sch_generic.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 56838ab29b42..1e89b9ad3a4c 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -143,7 +143,7 @@ struct Qdisc_class_ops {
void (*walk)(struct Qdisc *, struct qdisc_walker * arg);
/* Filter manipulation */
- struct tcf_proto ** (*tcf_chain)(struct Qdisc *, unsigned long);
+ struct tcf_proto __rcu ** (*tcf_chain)(struct Qdisc *, unsigned long);
unsigned long (*bind_tcf)(struct Qdisc *, unsigned long,
u32 classid);
void (*unbind_tcf)(struct Qdisc *, unsigned long);
@@ -212,8 +212,8 @@ struct tcf_proto_ops {
struct tcf_proto {
/* Fast access part */
- struct tcf_proto *next;
- void *root;
+ struct tcf_proto __rcu *next;
+ void __rcu *root;
int (*classify)(struct sk_buff *,
const struct tcf_proto *,
struct tcf_result *);
@@ -225,6 +225,7 @@ struct tcf_proto {
struct Qdisc *q;
void *data;
const struct tcf_proto_ops *ops;
+ struct rcu_head rcu;
};
struct qdisc_skb_cb {
@@ -378,7 +379,7 @@ struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue,
void __qdisc_calculate_pkt_len(struct sk_buff *skb,
const struct qdisc_size_table *stab);
void tcf_destroy(struct tcf_proto *tp);
-void tcf_destroy_chain(struct tcf_proto **fl);
+void tcf_destroy_chain(struct tcf_proto __rcu **fl);
/* Reset all TX qdiscs greater then index of a device. */
static inline void qdisc_reset_all_tx_gt(struct net_device *dev, unsigned int i)
--
cgit v1.2.1
From 331b72922c5f58d48fd5500acadc91777cc31970 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Fri, 12 Sep 2014 20:08:20 -0700
Subject: net: sched: RCU cls_tcindex
Make cls_tcindex RCU safe.
This patch addds a new RCU routine rcu_dereference_bh_rtnl() to check
caller either holds the rcu read lock or RTNL. This is needed to
handle the case where tcindex_lookup() is being called in both cases.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/rtnetlink.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 167bae7bdfa4..6cacbce1a06c 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -46,6 +46,16 @@ static inline int lockdep_rtnl_is_held(void)
#define rcu_dereference_rtnl(p) \
rcu_dereference_check(p, lockdep_rtnl_is_held())
+/**
+ * rcu_dereference_bh_rtnl - rcu_dereference_bh with debug checking
+ * @p: The pointer to read, prior to dereference
+ *
+ * Do an rcu_dereference_bh(p), but check caller either holds rcu_read_lock_bh()
+ * or RTNL. Note : Please prefer rtnl_dereference() or rcu_dereference_bh()
+ */
+#define rcu_dereference_bh_rtnl(p) \
+ rcu_dereference_bh_check(p, lockdep_rtnl_is_held())
+
/**
* rtnl_dereference - fetch RCU pointer when updates are prevented by RTNL
* @p: The pointer to read, prior to dereferencing
--
cgit v1.2.1
From a80e49e2cc3145af014a8ae44f575829cc236192 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Sat, 16 Aug 2014 17:47:18 +0200
Subject: nohz: Move nohz full init call to tick init
This way we unbloat a bit main.c and more importantly we initialize
nohz full after init_IRQ(). This dependency will be needed in further
patches because nohz full needs irq work to raise its own IRQ.
Information about the support for this ability on ARM64 is obtained on
init_IRQ() which initialize the pointer to __smp_call_function.
Since tick_init() is called right after init_IRQ(), this is a good place
to call tick_nohz_init() and prepare for that dependency.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
include/linux/tick.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 9a82c7dc3fdd..595ee86f5e0d 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -181,14 +181,12 @@ static inline bool tick_nohz_full_cpu(int cpu)
return cpumask_test_cpu(cpu, tick_nohz_full_mask);
}
-extern void tick_nohz_init(void);
extern void __tick_nohz_full_check(void);
extern void tick_nohz_full_kick(void);
extern void tick_nohz_full_kick_cpu(int cpu);
extern void tick_nohz_full_kick_all(void);
extern void __tick_nohz_task_switch(struct task_struct *tsk);
#else
-static inline void tick_nohz_init(void) { }
static inline bool tick_nohz_full_enabled(void) { return false; }
static inline bool tick_nohz_full_cpu(int cpu) { return false; }
static inline void __tick_nohz_full_check(void) { }
--
cgit v1.2.1
From c5c38ef3d70377dc504a6a3f611a3ec814bc757b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Sat, 6 Sep 2014 15:43:02 +0200
Subject: irq_work: Introduce arch_irq_work_has_interrupt()
The nohz full code needs irq work to trigger its own interrupt so that
the subsystem can work even when the tick is stopped.
Lets introduce arch_irq_work_has_interrupt() that archs can override to
tell about their support for this ability.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
include/asm-generic/irq_work.h | 10 ++++++++++
include/linux/irq_work.h | 2 ++
2 files changed, 12 insertions(+)
create mode 100644 include/asm-generic/irq_work.h
(limited to 'include')
diff --git a/include/asm-generic/irq_work.h b/include/asm-generic/irq_work.h
new file mode 100644
index 000000000000..a44f452c6590
--- /dev/null
+++ b/include/asm-generic/irq_work.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_IRQ_WORK_H
+#define __ASM_IRQ_WORK_H
+
+static inline bool arch_irq_work_has_interrupt(void)
+{
+ return false;
+}
+
+#endif /* __ASM_IRQ_WORK_H */
+
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index bf9422c3aefe..6b47b2ede405 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -42,6 +42,8 @@ void irq_work_run(void);
void irq_work_sync(struct irq_work *work);
#ifdef CONFIG_IRQ_WORK
+#include <asm/irq_work.h>
+
bool irq_work_needs_cpu(void);
#else
static inline bool irq_work_needs_cpu(void) { return false; }
--
cgit v1.2.1
From 76a33061b9323b7fdb220ae5fa116c10833ec22e Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Sat, 16 Aug 2014 18:37:19 +0200
Subject: irq_work: Force raised irq work to run on irq work interrupt
The nohz full kick, which restarts the tick when any resource depend
on it, can't be executed anywhere given the operation it does on timers.
If it is called from the scheduler or timers code, chances are that
we run into a deadlock.
This is why we run the nohz full kick from an irq work. That way we make
sure that the kick runs on a virgin context.
However if that's the case when irq work runs in its own dedicated
self-ipi, things are different for the big bunch of archs that don't
support the self triggered way. In order to support them, irq works are
also handled by the timer interrupt as fallback.
Now when irq works run on the timer interrupt, the context isn't blank.
More precisely, they can run in the context of the hrtimer that runs the
tick. But the nohz kick cancels and restarts this hrtimer and cancelling
an hrtimer from itself isn't allowed. This is why we run in an endless
loop:
Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 2
CPU: 2 PID: 7538 Comm: kworker/u8:8 Not tainted 3.16.0+ #34
Workqueue: btrfs-endio-write normal_work_helper [btrfs]
ffff880244c06c88 000000001b486fe1 ffff880244c06bf0 ffffffff8a7f1e37
ffffffff8ac52a18 ffff880244c06c78 ffffffff8a7ef928 0000000000000010
ffff880244c06c88 ffff880244c06c20 000000001b486fe1 0000000000000000
Call Trace:
<NMI[<ffffffff8a7f1e37>] dump_stack+0x4e/0x7a
[<ffffffff8a7ef928>] panic+0xd4/0x207
[<ffffffff8a1450e8>] watchdog_overflow_callback+0x118/0x120
[<ffffffff8a186b0e>] __perf_event_overflow+0xae/0x350
[<ffffffff8a184f80>] ? perf_event_task_disable+0xa0/0xa0
[<ffffffff8a01a4cf>] ? x86_perf_event_set_period+0xbf/0x150
[<ffffffff8a187934>] perf_event_overflow+0x14/0x20
[<ffffffff8a020386>] intel_pmu_handle_irq+0x206/0x410
[<ffffffff8a01937b>] perf_event_nmi_handler+0x2b/0x50
[<ffffffff8a007b72>] nmi_handle+0xd2/0x390
[<ffffffff8a007aa5>] ? nmi_handle+0x5/0x390
[<ffffffff8a0cb7f8>] ? match_held_lock+0x8/0x1b0
[<ffffffff8a008062>] default_do_nmi+0x72/0x1c0
[<ffffffff8a008268>] do_nmi+0xb8/0x100
[<ffffffff8a7ff66a>] end_repeat_nmi+0x1e/0x2e
[<ffffffff8a0cb7f8>] ? match_held_lock+0x8/0x1b0
[<ffffffff8a0cb7f8>] ? match_held_lock+0x8/0x1b0
[<ffffffff8a0cb7f8>] ? match_held_lock+0x8/0x1b0
<<EOE><IRQ[<ffffffff8a0ccd2f>] lock_acquired+0xaf/0x450
[<ffffffff8a0f74c5>] ? lock_hrtimer_base.isra.20+0x25/0x50
[<ffffffff8a7fc678>] _raw_spin_lock_irqsave+0x78/0x90
[<ffffffff8a0f74c5>] ? lock_hrtimer_base.isra.20+0x25/0x50
[<ffffffff8a0f74c5>] lock_hrtimer_base.isra.20+0x25/0x50
[<ffffffff8a0f7723>] hrtimer_try_to_cancel+0x33/0x1e0
[<ffffffff8a0f78ea>] hrtimer_cancel+0x1a/0x30
[<ffffffff8a109237>] tick_nohz_restart+0x17/0x90
[<ffffffff8a10a213>] __tick_nohz_full_check+0xc3/0x100
[<ffffffff8a10a25e>] nohz_full_kick_work_func+0xe/0x10
[<ffffffff8a17c884>] irq_work_run_list+0x44/0x70
[<ffffffff8a17c8da>] irq_work_run+0x2a/0x50
[<ffffffff8a0f700b>] update_process_times+0x5b/0x70
[<ffffffff8a109005>] tick_sched_handle.isra.21+0x25/0x60
[<ffffffff8a109b81>] tick_sched_timer+0x41/0x60
[<ffffffff8a0f7aa2>] __run_hrtimer+0x72/0x470
[<ffffffff8a109b40>] ? tick_sched_do_timer+0xb0/0xb0
[<ffffffff8a0f8707>] hrtimer_interrupt+0x117/0x270
[<ffffffff8a034357>] local_apic_timer_interrupt+0x37/0x60
[<ffffffff8a80010f>] smp_apic_timer_interrupt+0x3f/0x50
[<ffffffff8a7fe52f>] apic_timer_interrupt+0x6f/0x80
To fix this we force non-lazy irq works to run on irq work self-IPIs
when available. That ability of the arch to trigger irq work self IPIs
is available with arch_irq_work_has_interrupt().
Reported-by: Catalin Iacob <iacobcatalin@gmail.com>
Reported-by: Dave Jones <davej@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
include/linux/irq_work.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index 6b47b2ede405..bf3fe719c7ce 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -39,6 +39,7 @@ bool irq_work_queue_on(struct irq_work *work, int cpu);
#endif
void irq_work_run(void);
+void irq_work_tick(void);
void irq_work_sync(struct irq_work *work);
#ifdef CONFIG_IRQ_WORK
--
cgit v1.2.1
From 6c555490e0ce885a9caf0a045db69382a3ccbc9c Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Thu, 11 Sep 2014 15:35:09 -0700
Subject: ipv6: drop useless rcu_read_lock() in anycast
These code is now protected by rtnl lock, rcu read lock
is useless now.
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ae721f53739e..ee38b948d9a0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2083,8 +2083,8 @@ void __dev_remove_pack(struct packet_type *pt);
void dev_add_offload(struct packet_offload *po);
void dev_remove_offload(struct packet_offload *po);
-struct net_device *dev_get_by_flags_rcu(struct net *net, unsigned short flags,
- unsigned short mask);
+struct net_device *__dev_get_by_flags(struct net *net, unsigned short flags,
+ unsigned short mask);
struct net_device *dev_get_by_name(struct net *net, const char *name);
struct net_device *dev_get_by_name_rcu(struct net *net, const char *name);
struct net_device *__dev_get_by_name(struct net *net, const char *name);
--
cgit v1.2.1
From 013b4d90387a5dca54281263e0d4650db97bd67c Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Thu, 11 Sep 2014 15:35:11 -0700
Subject: ipv6: clean up ipv6_dev_ac_inc()
Make it accept inet6_dev, and rename it to __ipv6_dev_ac_inc()
to reflect this change.
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/addrconf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index f679877bb601..9b1d42e66cca 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -202,7 +202,7 @@ int ipv6_sock_ac_drop(struct sock *sk, int ifindex,
const struct in6_addr *addr);
void ipv6_sock_ac_close(struct sock *sk);
-int ipv6_dev_ac_inc(struct net_device *dev, const struct in6_addr *addr);
+int __ipv6_dev_ac_inc(struct inet6_dev *idev, const struct in6_addr *addr);
int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr);
bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
const struct in6_addr *addr);
--
cgit v1.2.1
From ac7a04c33dd7f8e429df4b929ba3a3e8e729cc89 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 11 Sep 2014 21:18:09 -0700
Subject: net: dsa: change tag_protocol to an enum
Now that we introduced an additional multiplexing/demultiplexing layer
with commit 3e8a72d1dae37 ("net: dsa: reduce number of protocol hooks")
that lives within the DSA code, we no longer need to have a given switch
driver tag_protocol be an actual ethertype value, instead, we can
replace it with an enum: dsa_tag_protocol.
Do this replacement in the drivers, which allows us to get rid of the
cpu_to_be16()/htons() dance, and remove ETH_P_BRCMTAG since we do not
need it anymore.
Suggested-by: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 97712927a9d2..8a8a5d976f97 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -19,10 +19,13 @@
#include <linux/phy.h>
#include <linux/phy_fixed.h>
-/* Not an official ethertype value, used only internally for DSA
- * demultiplexing
- */
-#define ETH_P_BRCMTAG (ETH_P_XDSA + 1)
+enum dsa_tag_protocol {
+ DSA_TAG_PROTO_NONE = 0,
+ DSA_TAG_PROTO_DSA,
+ DSA_TAG_PROTO_TRAILER,
+ DSA_TAG_PROTO_EDSA,
+ DSA_TAG_PROTO_BRCM,
+};
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
@@ -89,7 +92,7 @@ struct dsa_switch_tree {
*/
struct net_device *master_netdev;
const struct dsa_device_ops *ops;
- __be16 tag_protocol;
+ enum dsa_tag_protocol tag_protocol;
/*
* The switch and port to which the CPU is attached.
@@ -166,7 +169,7 @@ static inline u8 dsa_upstream_port(struct dsa_switch *ds)
struct dsa_switch_driver {
struct list_head list;
- __be16 tag_protocol;
+ enum dsa_tag_protocol tag_protocol;
int priv_size;
/*
@@ -215,7 +218,7 @@ static inline void *ds_to_priv(struct dsa_switch *ds)
static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
{
- return dst->tag_protocol != 0;
+ return dst->tag_protocol != DSA_TAG_PROTO_NONE;
}
#endif
--
cgit v1.2.1
From 233577a22089facf5271ab5e845b2262047c971f Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Fri, 12 Sep 2014 14:04:43 +0200
Subject: net: filter: constify detection of pkt_type_offset
Currently we have 2 pkt_type_offset functions doing the same thing and
spread across the architecture files. Remove those and replace them
with a PKT_TYPE_OFFSET macro helper which gets the constant value from a
zero sized sk_buff member right in front of the bitfield with offsetof.
This new offset marker does not change size of struct sk_buff.
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 07c9fdd0c126..756e3d057e84 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -548,6 +548,16 @@ struct sk_buff {
ip_summed:2,
nohdr:1,
nfctinfo:3;
+
+/* if you move pkt_type around you also must adapt those constants */
+#ifdef __BIG_ENDIAN_BITFIELD
+#define PKT_TYPE_MAX (7 << 5)
+#else
+#define PKT_TYPE_MAX 7
+#endif
+#define PKT_TYPE_OFFSET() offsetof(struct sk_buff, __pkt_type_offset)
+
+ __u8 __pkt_type_offset[0];
__u8 pkt_type:3,
fclone:2,
ipvs_property:1,
--
cgit v1.2.1
From 3fc8867740b4a0bf56f372c6f5ddd14970962fb1 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 12 Sep 2014 23:12:46 -0700
Subject: netdevice: Support DSA tagging when DSA is built as a module
This change corrects an error seen when DSA tagging is built as a module.
Without this change it is not possible to get XDSA tagged frames as the
test for tagging is stripped by the #ifdef check.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ee38b948d9a0..f9e81d10a3b9 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1789,7 +1789,7 @@ void dev_net_set(struct net_device *dev, struct net *net)
static inline bool netdev_uses_dsa(struct net_device *dev)
{
-#ifdef CONFIG_NET_DSA
+#if IS_ENABLED(CONFIG_NET_DSA)
if (dev->dsa_ptr != NULL)
return dsa_uses_tagged_protocol(dev->dsa_ptr);
#endif
--
cgit v1.2.1
From 43e73e4e2ad05d9bf3b438cfbe1e71b57a85f26c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 14 Sep 2014 23:06:28 +0200
Subject: Bluetooth: Provide HCI command opcode information to driver
The Bluetooth core already does processing of the HCI command header
and puts it together before sending it to the driver. It is not really
efficient for the driver to look at the HCI command header again in
case it has to make certain decisions about certain commands. To make
this easier, just provide the opcode as part of the SKB control buffer
information. The extra information about the opcode is optional and
only provided for HCI commands.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/bluetooth.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 373000de610d..7e666d06b97f 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -284,6 +284,7 @@ struct hci_req_ctrl {
struct bt_skb_cb {
__u8 pkt_type;
__u8 incoming;
+ __u16 opcode;
__u16 expect;
__u8 force_active;
struct l2cap_chan *chan;
--
cgit v1.2.1
From 1d46fea7d091f9dc2d4fd3fcb9f0117ca288f9a5 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 27 Aug 2014 00:42:56 +0200
Subject: drm/rcar-du: Use struct videomode in platform data
In preparation for DT support where panel timings will be described by a
DRM-agnostic video mode, replace the struct drm_mode_modeinfo instance
in the panel platform data with a struct videomode.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
include/linux/platform_data/rcar-du.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/rcar-du.h b/include/linux/platform_data/rcar-du.h
index 1a2e9901a22e..a5f045e1d8fe 100644
--- a/include/linux/platform_data/rcar-du.h
+++ b/include/linux/platform_data/rcar-du.h
@@ -14,7 +14,7 @@
#ifndef __RCAR_DU_H__
#define __RCAR_DU_H__
-#include <drm/drm_mode.h>
+#include <video/videomode.h>
enum rcar_du_output {
RCAR_DU_OUTPUT_DPAD0,
@@ -35,7 +35,7 @@ enum rcar_du_encoder_type {
struct rcar_du_panel_data {
unsigned int width_mm; /* Panel width in mm */
unsigned int height_mm; /* Panel height in mm */
- struct drm_mode_modeinfo mode;
+ struct videomode mode;
};
struct rcar_du_connector_lvds_data {
--
cgit v1.2.1
From db0a5214b8d6cc7a90ce3336d24a85b90cbb4e67 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 9 Sep 2014 17:17:20 +0200
Subject: ALSA: vx: Use nonatomic PCM ops
Rewrite VXpocket and VX222 drivers to use the new PCM nonatomic ops.
The former irq tasklet is replaced with a threaded irq handler, and
the tasklet for the PCM delayed start is simply merged into the normal
PCM trigger, as well as the replacement of spinlock with mutex.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/vx_core.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/sound/vx_core.h b/include/sound/vx_core.h
index f634f8f85db5..cae9c9d4ef22 100644
--- a/include/sound/vx_core.h
+++ b/include/sound/vx_core.h
@@ -80,8 +80,6 @@ struct vx_pipe {
unsigned int references; /* an output pipe may be used for monitoring and/or playback */
struct vx_pipe *monitoring_pipe; /* pointer to the monitoring pipe (capture pipe only)*/
-
- struct tasklet_struct start_tq;
};
struct vx_core;
@@ -165,9 +163,7 @@ struct vx_core {
struct snd_vx_hardware *hw;
struct snd_vx_ops *ops;
- spinlock_t lock;
- spinlock_t irq_lock;
- struct tasklet_struct tq;
+ struct mutex lock;
unsigned int chip_status;
unsigned int pcm_running;
@@ -223,6 +219,7 @@ void snd_vx_free_firmware(struct vx_core *chip);
* interrupt handler; exported for pcmcia
*/
irqreturn_t snd_vx_irq_handler(int irq, void *dev);
+irqreturn_t snd_vx_threaded_irq_handler(int irq, void *dev);
/*
* lowlevel functions
--
cgit v1.2.1
From 0e9871e3f79fd17c691b50a9669220c54ff084a2 Mon Sep 17 00:00:00 2001
From: Anton Danilov <littlesmilingcloud@gmail.com>
Date: Thu, 28 Aug 2014 10:11:27 +0400
Subject: netfilter: ipset: Add skbinfo extension kernel support in the ipset
core.
Skbinfo extension provides mapping of metainformation with lookup in the ipset tables.
This patch defines the flags, the constants, the functions and the structures
for the data type independent support of the extension.
Note the firewall mark stores in the kernel structures as two 32bit values,
but transfered through netlink as one 64bit value.
Signed-off-by: Anton Danilov <littlesmilingcloud@gmail.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
include/linux/netfilter/ipset/ip_set.h | 56 ++++++++++++++++++++++++++++-
include/uapi/linux/netfilter/ipset/ip_set.h | 12 +++++++
2 files changed, 67 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 96afc29184be..b97aac5142ed 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -57,6 +57,8 @@ enum ip_set_extension {
IPSET_EXT_COUNTER = (1 << IPSET_EXT_BIT_COUNTER),
IPSET_EXT_BIT_COMMENT = 2,
IPSET_EXT_COMMENT = (1 << IPSET_EXT_BIT_COMMENT),
+ IPSET_EXT_BIT_SKBINFO = 3,
+ IPSET_EXT_SKBINFO = (1 << IPSET_EXT_BIT_SKBINFO),
/* Mark set with an extension which needs to call destroy */
IPSET_EXT_BIT_DESTROY = 7,
IPSET_EXT_DESTROY = (1 << IPSET_EXT_BIT_DESTROY),
@@ -65,12 +67,14 @@ enum ip_set_extension {
#define SET_WITH_TIMEOUT(s) ((s)->extensions & IPSET_EXT_TIMEOUT)
#define SET_WITH_COUNTER(s) ((s)->extensions & IPSET_EXT_COUNTER)
#define SET_WITH_COMMENT(s) ((s)->extensions & IPSET_EXT_COMMENT)
+#define SET_WITH_SKBINFO(s) ((s)->extensions & IPSET_EXT_SKBINFO)
#define SET_WITH_FORCEADD(s) ((s)->flags & IPSET_CREATE_FLAG_FORCEADD)
/* Extension id, in size order */
enum ip_set_ext_id {
IPSET_EXT_ID_COUNTER = 0,
IPSET_EXT_ID_TIMEOUT,
+ IPSET_EXT_ID_SKBINFO,
IPSET_EXT_ID_COMMENT,
IPSET_EXT_ID_MAX,
};
@@ -92,6 +96,10 @@ struct ip_set_ext {
u64 packets;
u64 bytes;
u32 timeout;
+ u32 skbmark;
+ u32 skbmarkmask;
+ u32 skbprio;
+ u16 skbqueue;
char *comment;
};
@@ -104,6 +112,13 @@ struct ip_set_comment {
char *str;
};
+struct ip_set_skbinfo {
+ u32 skbmark;
+ u32 skbmarkmask;
+ u32 skbprio;
+ u16 skbqueue;
+};
+
struct ip_set;
#define ext_timeout(e, s) \
@@ -112,7 +127,8 @@ struct ip_set;
(struct ip_set_counter *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_COUNTER])
#define ext_comment(e, s) \
(struct ip_set_comment *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_COMMENT])
-
+#define ext_skbinfo(e, s) \
+(struct ip_set_skbinfo *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_SKBINFO])
typedef int (*ipset_adtfn)(struct ip_set *set, void *value,
const struct ip_set_ext *ext,
@@ -256,6 +272,8 @@ ip_set_put_flags(struct sk_buff *skb, struct ip_set *set)
cadt_flags |= IPSET_FLAG_WITH_COUNTERS;
if (SET_WITH_COMMENT(set))
cadt_flags |= IPSET_FLAG_WITH_COMMENT;
+ if (SET_WITH_SKBINFO(set))
+ cadt_flags |= IPSET_FLAG_WITH_SKBINFO;
if (SET_WITH_FORCEADD(set))
cadt_flags |= IPSET_FLAG_WITH_FORCEADD;
@@ -304,6 +322,39 @@ ip_set_update_counter(struct ip_set_counter *counter,
}
}
+static inline void
+ip_set_get_skbinfo(struct ip_set_skbinfo *skbinfo,
+ const struct ip_set_ext *ext,
+ struct ip_set_ext *mext, u32 flags)
+{
+ mext->skbmark = skbinfo->skbmark;
+ mext->skbmarkmask = skbinfo->skbmarkmask;
+ mext->skbprio = skbinfo->skbprio;
+ mext->skbqueue = skbinfo->skbqueue;
+}
+static inline bool
+ip_set_put_skbinfo(struct sk_buff *skb, struct ip_set_skbinfo *skbinfo)
+{
+ return nla_put_net64(skb, IPSET_ATTR_SKBMARK,
+ cpu_to_be64((u64)skbinfo->skbmark << 32 |
+ skbinfo->skbmarkmask)) ||
+ nla_put_net32(skb, IPSET_ATTR_SKBPRIO,
+ cpu_to_be32(skbinfo->skbprio)) ||
+ nla_put_net16(skb, IPSET_ATTR_SKBQUEUE,
+ cpu_to_be16(skbinfo->skbqueue));
+
+}
+
+static inline void
+ip_set_init_skbinfo(struct ip_set_skbinfo *skbinfo,
+ const struct ip_set_ext *ext)
+{
+ skbinfo->skbmark = ext->skbmark;
+ skbinfo->skbmarkmask = ext->skbmarkmask;
+ skbinfo->skbprio = ext->skbprio;
+ skbinfo->skbqueue = ext->skbqueue;
+}
+
static inline bool
ip_set_put_counter(struct sk_buff *skb, struct ip_set_counter *counter)
{
@@ -497,6 +548,9 @@ ip_set_put_extensions(struct sk_buff *skb, const struct ip_set *set,
if (SET_WITH_COMMENT(set) &&
ip_set_put_comment(skb, ext_comment(e, set)))
return -EMSGSIZE;
+ if (SET_WITH_SKBINFO(set) &&
+ ip_set_put_skbinfo(skb, ext_skbinfo(e, set)))
+ return -EMSGSIZE;
return 0;
}
diff --git a/include/uapi/linux/netfilter/ipset/ip_set.h b/include/uapi/linux/netfilter/ipset/ip_set.h
index 78c2f2e79920..ca03119111a2 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set.h
@@ -115,6 +115,9 @@ enum {
IPSET_ATTR_BYTES,
IPSET_ATTR_PACKETS,
IPSET_ATTR_COMMENT,
+ IPSET_ATTR_SKBMARK,
+ IPSET_ATTR_SKBPRIO,
+ IPSET_ATTR_SKBQUEUE,
__IPSET_ATTR_ADT_MAX,
};
#define IPSET_ATTR_ADT_MAX (__IPSET_ATTR_ADT_MAX - 1)
@@ -147,6 +150,7 @@ enum ipset_errno {
IPSET_ERR_COUNTER,
IPSET_ERR_COMMENT,
IPSET_ERR_INVALID_MARKMASK,
+ IPSET_ERR_SKBINFO,
/* Type specific error codes */
IPSET_ERR_TYPE_SPECIFIC = 4352,
@@ -170,6 +174,12 @@ enum ipset_cmd_flags {
IPSET_FLAG_MATCH_COUNTERS = (1 << IPSET_FLAG_BIT_MATCH_COUNTERS),
IPSET_FLAG_BIT_RETURN_NOMATCH = 7,
IPSET_FLAG_RETURN_NOMATCH = (1 << IPSET_FLAG_BIT_RETURN_NOMATCH),
+ IPSET_FLAG_BIT_MAP_SKBMARK = 8,
+ IPSET_FLAG_MAP_SKBMARK = (1 << IPSET_FLAG_BIT_MAP_SKBMARK),
+ IPSET_FLAG_BIT_MAP_SKBPRIO = 9,
+ IPSET_FLAG_MAP_SKBPRIO = (1 << IPSET_FLAG_BIT_MAP_SKBPRIO),
+ IPSET_FLAG_BIT_MAP_SKBQUEUE = 10,
+ IPSET_FLAG_MAP_SKBQUEUE = (1 << IPSET_FLAG_BIT_MAP_SKBQUEUE),
IPSET_FLAG_CMD_MAX = 15,
};
@@ -187,6 +197,8 @@ enum ipset_cadt_flags {
IPSET_FLAG_WITH_COMMENT = (1 << IPSET_FLAG_BIT_WITH_COMMENT),
IPSET_FLAG_BIT_WITH_FORCEADD = 5,
IPSET_FLAG_WITH_FORCEADD = (1 << IPSET_FLAG_BIT_WITH_FORCEADD),
+ IPSET_FLAG_BIT_WITH_SKBINFO = 6,
+ IPSET_FLAG_WITH_SKBINFO = (1 << IPSET_FLAG_BIT_WITH_SKBINFO),
IPSET_FLAG_CADT_MAX = 15,
};
--
cgit v1.2.1
From 76cea4109ca89dea218fdc652d2e1535fd9b5fc7 Mon Sep 17 00:00:00 2001
From: Anton Danilov <littlesmilingcloud@gmail.com>
Date: Tue, 2 Sep 2014 14:21:20 +0400
Subject: netfilter: ipset: Add skbinfo extension support to SET target.
Signed-off-by: Anton Danilov <littlesmilingcloud@gmail.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
include/uapi/linux/netfilter/xt_set.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/xt_set.h b/include/uapi/linux/netfilter/xt_set.h
index 964d3d42f874..d6a1df1f2947 100644
--- a/include/uapi/linux/netfilter/xt_set.h
+++ b/include/uapi/linux/netfilter/xt_set.h
@@ -71,4 +71,14 @@ struct xt_set_info_match_v3 {
__u32 flags;
};
+/* Revision 3 target */
+
+struct xt_set_info_target_v3 {
+ struct xt_set_info add_set;
+ struct xt_set_info del_set;
+ struct xt_set_info map_set;
+ __u32 flags;
+ __u32 timeout;
+};
+
#endif /*_XT_SET_H*/
--
cgit v1.2.1
From aef96193fe7b2791c4a3b19fe75426b929769471 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 15 Sep 2014 17:30:54 +0200
Subject: netfilter: ipset: send nonzero skbinfo extensions only
Do not send zero valued skbinfo extensions to userspace at listing.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
include/linux/netfilter/ipset/ip_set.h | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index b97aac5142ed..f1606fa6132d 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -335,13 +335,17 @@ ip_set_get_skbinfo(struct ip_set_skbinfo *skbinfo,
static inline bool
ip_set_put_skbinfo(struct sk_buff *skb, struct ip_set_skbinfo *skbinfo)
{
- return nla_put_net64(skb, IPSET_ATTR_SKBMARK,
- cpu_to_be64((u64)skbinfo->skbmark << 32 |
- skbinfo->skbmarkmask)) ||
- nla_put_net32(skb, IPSET_ATTR_SKBPRIO,
- cpu_to_be32(skbinfo->skbprio)) ||
- nla_put_net16(skb, IPSET_ATTR_SKBQUEUE,
- cpu_to_be16(skbinfo->skbqueue));
+ /* Send nonzero parameters only */
+ return ((skbinfo->skbmark || skbinfo->skbmarkmask) &&
+ nla_put_net64(skb, IPSET_ATTR_SKBMARK,
+ cpu_to_be64((u64)skbinfo->skbmark << 32 |
+ skbinfo->skbmarkmask))) ||
+ (skbinfo->skbprio &&
+ nla_put_net32(skb, IPSET_ATTR_SKBPRIO,
+ cpu_to_be32(skbinfo->skbprio))) ||
+ (skbinfo->skbqueue &&
+ nla_put_net16(skb, IPSET_ATTR_SKBQUEUE,
+ cpu_to_be16(skbinfo->skbqueue)));
}
--
cgit v1.2.1
From 4b8c6ba616deab7ddf2725f5833cf027a149987f Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Fri, 12 Sep 2014 16:00:32 -0700
Subject: scsi: fix regression that accidentally disabled block-based tcq
Please try the fix below, looks like the commit broke TCQ for all drivers
using block-level tagging.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_tcq.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index cdcc90b07ecb..e64583560701 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -68,7 +68,7 @@ static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth)
return;
if (!shost_use_blk_mq(sdev->host) &&
- blk_queue_tagged(sdev->request_queue))
+ !blk_queue_tagged(sdev->request_queue))
blk_queue_init_tags(sdev->request_queue, depth,
sdev->host->bqt);
--
cgit v1.2.1
From 5075314e4e4b559cc37675ad8a721a89bccd6284 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Mon, 15 Sep 2014 13:00:19 -0400
Subject: dsa: Split ops up, and avoid assigning tag_protocol and receive
separately
This change addresses several issues.
First, it was possible to set tag_protocol without setting the ops pointer.
To correct that I have reordered things so that rcv is now populated before
we set tag_protocol.
Second, it didn't make much sense to keep setting the device ops each time a
new slave was registered. So by moving the receive portion out into root
switch initialization that issue should be addressed.
Third, I wanted to avoid sending tags if the rcv pointer was not registered
so I changed the tag check to verify if the rcv function pointer is set on
the root tree. If it is then we start sending DSA tagged frames.
Finally I split the device ops pointer in the structures into two spots. I
placed the rcv function pointer in the root switch since this makes it
easiest to access from there, and I placed the xmit function pointer in the
slave for the same reason.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 7 -------
include/net/dsa.h | 10 ++++++----
2 files changed, 6 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index f9e81d10a3b9..28d4378615e5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1928,13 +1928,6 @@ struct udp_offload {
struct offload_callbacks callbacks;
};
-struct dsa_device_ops {
- netdev_tx_t (*xmit)(struct sk_buff *skb, struct net_device *dev);
- int (*rcv)(struct sk_buff *skb, struct net_device *dev,
- struct packet_type *pt, struct net_device *orig_dev);
-};
-
-
/* often modified stats are per cpu, other are shared (netdev->stats) */
struct pcpu_sw_netstats {
u64 rx_packets;
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 8a8a5d976f97..a55c4e6a4f0f 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -77,7 +77,7 @@ struct dsa_platform_data {
struct dsa_chip_data *chip;
};
-struct dsa_device_ops;
+struct packet_type;
struct dsa_switch_tree {
/*
@@ -91,7 +91,10 @@ struct dsa_switch_tree {
* protocol to use.
*/
struct net_device *master_netdev;
- const struct dsa_device_ops *ops;
+ int (*rcv)(struct sk_buff *skb,
+ struct net_device *dev,
+ struct packet_type *pt,
+ struct net_device *orig_dev);
enum dsa_tag_protocol tag_protocol;
/*
@@ -218,7 +221,6 @@ static inline void *ds_to_priv(struct dsa_switch *ds)
static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
{
- return dst->tag_protocol != DSA_TAG_PROTO_NONE;
+ return dst->rcv != NULL;
}
-
#endif
--
cgit v1.2.1
From b4d2394d01bc642e95b2cba956d908423c1bef77 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Mon, 15 Sep 2014 13:00:27 -0400
Subject: dsa: Replace mii_bus with a generic host device
This change makes it so that instead of passing and storing a mii_bus we
instead pass and store a host_dev. From there we can test to determine the
exact type of device, and can verify it is the correct device for our switch.
So for example it would be possible to pass a device pointer from a pci_dev
and instead of checking for a PHY ID we could check for a vendor and/or device
ID.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index a55c4e6a4f0f..c779e9bba1b3 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -34,7 +34,7 @@ struct dsa_chip_data {
/*
* How to access the switch configuration registers.
*/
- struct device *mii_bus;
+ struct device *host_dev;
int sw_addr;
/* Device tree node pointer for this specific switch chip
@@ -134,9 +134,9 @@ struct dsa_switch {
struct dsa_switch_driver *drv;
/*
- * Reference to mii bus to use.
+ * Reference to host device to use.
*/
- struct mii_bus *master_mii_bus;
+ struct device *master_dev;
/*
* Slave mii_bus and devices for the individual ports.
@@ -178,7 +178,7 @@ struct dsa_switch_driver {
/*
* Probing and setup.
*/
- char *(*probe)(struct mii_bus *bus, int sw_addr);
+ char *(*probe)(struct device *host_dev, int sw_addr);
int (*setup)(struct dsa_switch *ds);
int (*set_addr)(struct dsa_switch *ds, u8 *addr);
@@ -213,6 +213,7 @@ struct dsa_switch_driver {
void register_switch_driver(struct dsa_switch_driver *type);
void unregister_switch_driver(struct dsa_switch_driver *type);
+struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev);
static inline void *ds_to_priv(struct dsa_switch *ds)
{
--
cgit v1.2.1
From 64bdcbc449105377dd60c8da97cfc1663b39562c Mon Sep 17 00:00:00 2001
From: "Kashyap.Desai@avagotech.com" <Kashyap.Desai@avagotech.com>
Date: Wed, 20 Aug 2014 19:24:33 +0530
Subject: scsi: add use_cmd_list flag
Add a use_cmd_list flag in struct Scsi_Host to request keeping track of
all outstanding commands per device.
Default behaviour is not to keep track of cmd_list per sdev, as this may
introduce lock contention. (overhead is more on multi-node NUMA.), and
only enable it on the two drivers that need it.
Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_host.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index ba2034779961..cafb260ef2d3 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -680,6 +680,7 @@ struct Scsi_Host {
unsigned no_write_same:1;
unsigned use_blk_mq:1;
+ unsigned use_cmd_list:1;
/*
* Optional work queue to be utilized by the transport
--
cgit v1.2.1
From 50c4e96411a6cd728f04cf70d8d6def57828b320 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 2 Sep 2014 11:35:50 -0400
Subject: scsi: don't store LUN bits in CDB[1] for USB mass-storage devices
The SCSI specification requires that the second Command Data Byte
should contain the LUN value in its high-order bits if the recipient
device reports SCSI level 2 or below. Nevertheless, some USB
mass-storage devices use those bits for other purposes in
vendor-specific commands. Currently Linux has no way to send such
commands, because the SCSI stack always overwrites the LUN bits.
Testing shows that Windows 7 and XP do not store the LUN bits in the
CDB when sending commands to a USB device. This doesn't matter if the
device uses the Bulk-Only or UAS transports (which virtually all
modern USB mass-storage devices do), as these have a separate
mechanism for sending the LUN value.
Therefore this patch introduces a flag in the Scsi_Host structure to
inform the SCSI midlayer that a transport does not require the LUN
bits to be stored in the CDB, and it makes usb-storage set this flag
for all devices using the Bulk-Only transport. (UAS is handled by a
separate driver, but it doesn't really matter because no SCSI-2 or
lower device is at all likely to use UAS.)
The patch also cleans up the code responsible for storing the LUN
value by adding a bitflag to the scsi_device structure. The test for
whether to stick the LUN value in the CDB can be made when the device
is probed, and stored for future use rather than being made over and
over in the fast path.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Tiziano Bacocco <tiziano.bacocco@gmail.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_device.h | 1 +
include/scsi/scsi_host.h | 3 +++
2 files changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 1a0d1842962e..27ecee73bd72 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -174,6 +174,7 @@ struct scsi_device {
unsigned wce_default_on:1; /* Cache is ON by default */
unsigned no_dif:1; /* T10 PI (DIF) should be disabled */
unsigned broken_fua:1; /* Don't set FUA bit */
+ unsigned lun_in_cdb:1; /* Store LUN bits in CDB[1] */
atomic_t disk_events_disable_depth; /* disable depth for disk events */
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index cafb260ef2d3..d0f69a3210df 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -693,6 +693,9 @@ struct Scsi_Host {
*/
struct workqueue_struct *tmf_work_q;
+ /* The transport requires the LUN bits NOT to be stored in CDB[1] */
+ unsigned no_scsi2_lun_in_cdb:1;
+
/*
* Value host_blocked counts down from
*/
--
cgit v1.2.1
From 6cff339bbd5f9eda7a5e8a521f91a88d046e6d0c Mon Sep 17 00:00:00 2001
From: Alex Gartrell <agartrell@fb.com>
Date: Tue, 9 Sep 2014 16:40:20 -0700
Subject: ipvs: Add destination address family to netlink interface
This is necessary to support heterogeneous pools. For example, if you have
an ipv6 addressed network, you'll want to be able to forward ipv4 traffic
into it.
This patch enforces that destination address family is the same as service
family, as none of the forwarding mechanisms support anything else.
For the old setsockopt mechanism, we simply set the dest address family to
AF_INET as we do with the service.
Signed-off-by: Alex Gartrell <agartrell@fb.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
include/net/ip_vs.h | 3 +++
include/uapi/linux/ip_vs.h | 3 +++
2 files changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 624a8a54806d..b7e2b624d58e 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -648,6 +648,9 @@ struct ip_vs_dest_user_kern {
/* thresholds for active connections */
u32 u_threshold; /* upper threshold */
u32 l_threshold; /* lower threshold */
+
+ /* Address family of addr */
+ u16 af;
};
diff --git a/include/uapi/linux/ip_vs.h b/include/uapi/linux/ip_vs.h
index fbcffe8041f7..cabe95d5b461 100644
--- a/include/uapi/linux/ip_vs.h
+++ b/include/uapi/linux/ip_vs.h
@@ -384,6 +384,9 @@ enum {
IPVS_DEST_ATTR_PERSIST_CONNS, /* persistent connections */
IPVS_DEST_ATTR_STATS, /* nested attribute for dest stats */
+
+ IPVS_DEST_ATTR_ADDR_FAMILY, /* Address family of address */
+
__IPVS_DEST_ATTR_MAX,
};
--
cgit v1.2.1
From 655eef103d0bd99f540a52f7ede032e120756846 Mon Sep 17 00:00:00 2001
From: Alex Gartrell <agartrell@fb.com>
Date: Tue, 9 Sep 2014 16:40:21 -0700
Subject: ipvs: Supply destination addr family to ip_vs_{lookup_dest,find_dest}
We need to remove the assumption that virtual address family is the same as
real address family in order to support heterogeneous services (that is,
services with v4 vips and v6 backends or the opposite).
Signed-off-by: Alex Gartrell <agartrell@fb.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
include/net/ip_vs.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index b7e2b624d58e..2fa1155b24f7 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1399,8 +1399,9 @@ void ip_vs_unregister_nl_ioctl(void);
int ip_vs_control_init(void);
void ip_vs_control_cleanup(void);
struct ip_vs_dest *
-ip_vs_find_dest(struct net *net, int af, const union nf_inet_addr *daddr,
- __be16 dport, const union nf_inet_addr *vaddr, __be16 vport,
+ip_vs_find_dest(struct net *net, int svc_af, int dest_af,
+ const union nf_inet_addr *daddr, __be16 dport,
+ const union nf_inet_addr *vaddr, __be16 vport,
__u16 protocol, __u32 fwmark, __u32 flags);
void ip_vs_try_bind_dest(struct ip_vs_conn *cp);
--
cgit v1.2.1
From ba38528aae6ee2d22226c6a78727ddc13512b068 Mon Sep 17 00:00:00 2001
From: Alex Gartrell <agartrell@fb.com>
Date: Tue, 9 Sep 2014 16:40:23 -0700
Subject: ipvs: Supply destination address family to ip_vs_conn_new
The assumption that dest af is equal to service af is now unreliable, so we
must specify it manually so as not to copy just the first 4 bytes of a v6
address or doing an illegal read of 16 butes on a v6 address.
We "lie" in two places: for synchronization (which we will explicitly
disallow from happening when we have heterogeneous pools) and for black
hole addresses where there's no real dest.
Signed-off-by: Alex Gartrell <agartrell@fb.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
include/net/ip_vs.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 2fa1155b24f7..7600dbe5780e 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -535,6 +535,7 @@ struct ip_vs_conn {
union nf_inet_addr daddr; /* destination address */
volatile __u32 flags; /* status flags */
__u16 protocol; /* Which protocol (TCP/UDP) */
+ __u16 daf; /* Address family of the dest */
#ifdef CONFIG_NET_NS
struct net *net; /* Name space */
#endif
@@ -1213,7 +1214,7 @@ static inline void __ip_vs_conn_put(struct ip_vs_conn *cp)
void ip_vs_conn_put(struct ip_vs_conn *cp);
void ip_vs_conn_fill_cport(struct ip_vs_conn *cp, __be16 cport);
-struct ip_vs_conn *ip_vs_conn_new(const struct ip_vs_conn_param *p,
+struct ip_vs_conn *ip_vs_conn_new(const struct ip_vs_conn_param *p, int dest_af,
const union nf_inet_addr *daddr,
__be16 dport, unsigned int flags,
struct ip_vs_dest *dest, __u32 fwmark);
--
cgit v1.2.1
From 391f503d69779867f05e9296ae523e9002c2d7ee Mon Sep 17 00:00:00 2001
From: Alex Gartrell <agartrell@fb.com>
Date: Tue, 9 Sep 2014 16:40:24 -0700
Subject: ipvs: prevent mixing heterogeneous pools and synchronization
The synchronization protocol is not compatible with heterogeneous pools, so
we need to verify that we're not turning both on at the same time.
Signed-off-by: Alex Gartrell <agartrell@fb.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
include/net/ip_vs.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 7600dbe5780e..576d7f0bed5d 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -990,6 +990,10 @@ struct netns_ipvs {
char backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
/* net name space ptr */
struct net *net; /* Needed by timer routines */
+ /* Number of heterogeneous destinations, needed because
+ * heterogeneous are not supported when synchronization is
+ * enabled */
+ unsigned int mixed_address_family_dests;
};
#define DEFAULT_SYNC_THRESHOLD 3
--
cgit v1.2.1
From 2e151c70dfb0075ff83bec305c52a9da1ba49089 Mon Sep 17 00:00:00 2001
From: Peter Neubauer <pneubauer@bluerwhite.org>
Date: Fri, 12 Sep 2014 13:06:13 +0200
Subject: x86: HPET force enable for e6xx based systems
As the Soekris net6501 and other e6xx based systems do not have
any ACPI implementation, HPET won't get enabled.
This patch enables HPET on such platforms.
[ 0.430149] pci 0000:00:01.0: Force enabled HPET at 0xfed00000
[ 0.644838] HPET: 3 timers in total, 0 timers will be used for per-cpu timer
Original patch by Peter Neubauer (http://www.mail-archive.com/soekris-tech@lists.soekris.com/msg06462.html)
slightly modified by Conrad Kostecki <ck@conrad-kostecki.de> and massaged
accoring to Thomas Gleixners <tglx@linutronix.de> by me.
Suggested-by: Conrad Kostecki <ck@conrad-kostecki.de>
Signed-off-by: Eric Sesterhenn <eric.sesterhenn@lsexperts.de>
Cc: Peter Neubauer <pneubauer@bluerwhite.org>
Link: http://lkml.kernel.org/r/5412D3A5.2030909@lsexperts.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/pci_ids.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 6ed0bb73a864..aa0d39073e9c 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2860,6 +2860,7 @@
#define PCI_DEVICE_ID_INTEL_82372FB_1 0x7601
#define PCI_DEVICE_ID_INTEL_SCH_LPC 0x8119
#define PCI_DEVICE_ID_INTEL_SCH_IDE 0x811a
+#define PCI_DEVICE_ID_INTEL_E6XX_CU 0x8183
#define PCI_DEVICE_ID_INTEL_ITC_LPC 0x8186
#define PCI_DEVICE_ID_INTEL_82454GX 0x84c4
#define PCI_DEVICE_ID_INTEL_82450GX 0x84c5
--
cgit v1.2.1
From 21231f81f13db2883f11664b67fc6fb2690e6af2 Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Mon, 18 Aug 2014 22:07:12 +0200
Subject: ARM: imx: clk-vf610: Add USBPHY clocks
This commit adds PLL7 which is required for USBPHY1. It also adds
the USB PHY and USB Controller clocks and the gates to enable them.
Acked-by: Jingchang Lu <jingchang.lu@freescale.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/vf610-clock.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/vf610-clock.h b/include/dt-bindings/clock/vf610-clock.h
index 00953d9484cb..d6b56b21539b 100644
--- a/include/dt-bindings/clock/vf610-clock.h
+++ b/include/dt-bindings/clock/vf610-clock.h
@@ -166,6 +166,9 @@
#define VF610_CLK_DMAMUX3 153
#define VF610_CLK_FLEXCAN0_EN 154
#define VF610_CLK_FLEXCAN1_EN 155
-#define VF610_CLK_END 156
+#define VF610_CLK_PLL7_MAIN 156
+#define VF610_CLK_USBPHY0 157
+#define VF610_CLK_USBPHY1 158
+#define VF610_CLK_END 159
#endif /* __DT_BINDINGS_CLOCK_VF610_H */
--
cgit v1.2.1
From 7bce3d23ecfd327bd277598d67e93655fb4cc0ed Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@freescale.com>
Date: Fri, 8 Aug 2014 15:02:47 +0800
Subject: ARM: clk-imx6q: refine clock tree for ESAI
There are three clock for ESAI, esai_extal, esai_ipg, esai_mem. Rename
'esai' to 'esai_extal', 'esai_ahb' to 'esai_mem', and add 'esai_ipg'.
Make the clock for ESAI more clear and align them with imx6sx.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx6qdl-clock.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h
index 654151e24288..323e8650f198 100644
--- a/include/dt-bindings/clock/imx6qdl-clock.h
+++ b/include/dt-bindings/clock/imx6qdl-clock.h
@@ -128,7 +128,7 @@
#define IMX6Q_CLK_ECSPI5 116
#define IMX6DL_CLK_I2C4 116
#define IMX6QDL_CLK_ENET 117
-#define IMX6QDL_CLK_ESAI 118
+#define IMX6QDL_CLK_ESAI_EXTAL 118
#define IMX6QDL_CLK_GPT_IPG 119
#define IMX6QDL_CLK_GPT_IPG_PER 120
#define IMX6QDL_CLK_GPU2D_CORE 121
@@ -218,7 +218,8 @@
#define IMX6QDL_CLK_LVDS2_SEL 205
#define IMX6QDL_CLK_LVDS1_GATE 206
#define IMX6QDL_CLK_LVDS2_GATE 207
-#define IMX6QDL_CLK_ESAI_AHB 208
-#define IMX6QDL_CLK_END 209
+#define IMX6QDL_CLK_ESAI_IPG 208
+#define IMX6QDL_CLK_ESAI_MEM 209
+#define IMX6QDL_CLK_END 210
#endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */
--
cgit v1.2.1
From aec247d4ac578693ee75ac2bf10eac1c29299c45 Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@freescale.com>
Date: Thu, 4 Sep 2014 17:48:58 +0800
Subject: ARM: clk-imx6q: refine clock tree for ASRC
ASRC has "asrc", "asrc_ipg", "asrc_mem" clocks, and they share
the same gate bits.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx6qdl-clock.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h
index 323e8650f198..1e996135cfc7 100644
--- a/include/dt-bindings/clock/imx6qdl-clock.h
+++ b/include/dt-bindings/clock/imx6qdl-clock.h
@@ -220,6 +220,8 @@
#define IMX6QDL_CLK_LVDS2_GATE 207
#define IMX6QDL_CLK_ESAI_IPG 208
#define IMX6QDL_CLK_ESAI_MEM 209
-#define IMX6QDL_CLK_END 210
+#define IMX6QDL_CLK_ASRC_IPG 210
+#define IMX6QDL_CLK_ASRC_MEM 211
+#define IMX6QDL_CLK_END 212
#endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */
--
cgit v1.2.1
From b1f156db47ae914a308488ce28e84f3d4ad4f667 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@freescale.com>
Date: Mon, 1 Sep 2014 14:17:48 +0800
Subject: ARM: imx6q: add BYPASS support for PLL clocks
The imx6q clock driver currently hard-codes all PLL clocks to source
from OSC24M without BYPASS support. The patch adds the missing lvds_in
clock which is mutually exclusive with lvds_gate, and implements BYPASS
and BYPASS_CLK_SRC selection for PLL clocks as per Figure 10-3. Primary
Clock Generation in IMX6DQRM, i.e. both BYPASS_CLK_SRC and BYPASS bits
are implemented as mux clocks, and ENABLE bit of PLL clocks is
implemented as a gate clock after BYPASS mux.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx6qdl-clock.h | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h
index 1e996135cfc7..c0d88ab013b4 100644
--- a/include/dt-bindings/clock/imx6qdl-clock.h
+++ b/include/dt-bindings/clock/imx6qdl-clock.h
@@ -222,6 +222,31 @@
#define IMX6QDL_CLK_ESAI_MEM 209
#define IMX6QDL_CLK_ASRC_IPG 210
#define IMX6QDL_CLK_ASRC_MEM 211
-#define IMX6QDL_CLK_END 212
+#define IMX6QDL_CLK_LVDS1_IN 212
+#define IMX6QDL_CLK_LVDS2_IN 213
+#define IMX6QDL_CLK_ANACLK1 214
+#define IMX6QDL_CLK_ANACLK2 215
+#define IMX6QDL_PLL1_BYPASS_SRC 216
+#define IMX6QDL_PLL2_BYPASS_SRC 217
+#define IMX6QDL_PLL3_BYPASS_SRC 218
+#define IMX6QDL_PLL4_BYPASS_SRC 219
+#define IMX6QDL_PLL5_BYPASS_SRC 220
+#define IMX6QDL_PLL6_BYPASS_SRC 221
+#define IMX6QDL_PLL7_BYPASS_SRC 222
+#define IMX6QDL_CLK_PLL1 223
+#define IMX6QDL_CLK_PLL2 224
+#define IMX6QDL_CLK_PLL3 225
+#define IMX6QDL_CLK_PLL4 226
+#define IMX6QDL_CLK_PLL5 227
+#define IMX6QDL_CLK_PLL6 228
+#define IMX6QDL_CLK_PLL7 229
+#define IMX6QDL_PLL1_BYPASS 230
+#define IMX6QDL_PLL2_BYPASS 231
+#define IMX6QDL_PLL3_BYPASS 232
+#define IMX6QDL_PLL4_BYPASS 233
+#define IMX6QDL_PLL5_BYPASS 234
+#define IMX6QDL_PLL6_BYPASS 235
+#define IMX6QDL_PLL7_BYPASS 236
+#define IMX6QDL_CLK_END 237
#endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */
--
cgit v1.2.1
From e90f41990dce3557e345410ef33b0a47e8cb49fc Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@freescale.com>
Date: Mon, 1 Sep 2014 14:29:53 +0800
Subject: ARM: imx6sl: add BYPASS support for PLL clocks
This is the same change for imx6sl clock driver as "ARM: imx6q: add BYPASS
support for PLL clocks" for imx6q. The difference is that only anaclk1
is available on imx6sl.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx6sl-clock.h | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx6sl-clock.h b/include/dt-bindings/clock/imx6sl-clock.h
index b91dd462ba85..f10a928fe2dd 100644
--- a/include/dt-bindings/clock/imx6sl-clock.h
+++ b/include/dt-bindings/clock/imx6sl-clock.h
@@ -146,6 +146,31 @@
#define IMX6SL_CLK_PLL4_AUDIO_DIV 133
#define IMX6SL_CLK_SPBA 134
#define IMX6SL_CLK_ENET 135
-#define IMX6SL_CLK_END 136
+#define IMX6SL_CLK_LVDS1_SEL 136
+#define IMX6SL_CLK_LVDS1_OUT 137
+#define IMX6SL_CLK_LVDS1_IN 138
+#define IMX6SL_CLK_ANACLK1 139
+#define IMX6SL_PLL1_BYPASS_SRC 140
+#define IMX6SL_PLL2_BYPASS_SRC 141
+#define IMX6SL_PLL3_BYPASS_SRC 142
+#define IMX6SL_PLL4_BYPASS_SRC 143
+#define IMX6SL_PLL5_BYPASS_SRC 144
+#define IMX6SL_PLL6_BYPASS_SRC 145
+#define IMX6SL_PLL7_BYPASS_SRC 146
+#define IMX6SL_CLK_PLL1 147
+#define IMX6SL_CLK_PLL2 148
+#define IMX6SL_CLK_PLL3 149
+#define IMX6SL_CLK_PLL4 150
+#define IMX6SL_CLK_PLL5 151
+#define IMX6SL_CLK_PLL6 152
+#define IMX6SL_CLK_PLL7 153
+#define IMX6SL_PLL1_BYPASS 154
+#define IMX6SL_PLL2_BYPASS 155
+#define IMX6SL_PLL3_BYPASS 156
+#define IMX6SL_PLL4_BYPASS 157
+#define IMX6SL_PLL5_BYPASS 158
+#define IMX6SL_PLL6_BYPASS 159
+#define IMX6SL_PLL7_BYPASS 160
+#define IMX6SL_CLK_END 161
#endif /* __DT_BINDINGS_CLOCK_IMX6SL_H */
--
cgit v1.2.1
From db7c0659452c5f490ea5048390ad94de786f4b85 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@freescale.com>
Date: Mon, 1 Sep 2014 15:15:57 +0800
Subject: ARM: imx6sx: add BYPASS support for PLL clocks
This is the same change for imx6sx clock driver as "ARM: imx6q: add BYPASS
support for PLL clocks" for imx6q. The difference is that only anaclk1
is available on imx6sx.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx6sx-clock.h | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx6sx-clock.h b/include/dt-bindings/clock/imx6sx-clock.h
index 421d8bb76f2f..995709119ec5 100644
--- a/include/dt-bindings/clock/imx6sx-clock.h
+++ b/include/dt-bindings/clock/imx6sx-clock.h
@@ -251,6 +251,29 @@
#define IMX6SX_CLK_SAI2_IPG 238
#define IMX6SX_CLK_ESAI_IPG 239
#define IMX6SX_CLK_ESAI_MEM 240
-#define IMX6SX_CLK_CLK_END 241
+#define IMX6SX_CLK_LVDS1_IN 241
+#define IMX6SX_CLK_ANACLK1 242
+#define IMX6SX_PLL1_BYPASS_SRC 243
+#define IMX6SX_PLL2_BYPASS_SRC 244
+#define IMX6SX_PLL3_BYPASS_SRC 245
+#define IMX6SX_PLL4_BYPASS_SRC 246
+#define IMX6SX_PLL5_BYPASS_SRC 247
+#define IMX6SX_PLL6_BYPASS_SRC 248
+#define IMX6SX_PLL7_BYPASS_SRC 249
+#define IMX6SX_CLK_PLL1 250
+#define IMX6SX_CLK_PLL2 251
+#define IMX6SX_CLK_PLL3 252
+#define IMX6SX_CLK_PLL4 253
+#define IMX6SX_CLK_PLL5 254
+#define IMX6SX_CLK_PLL6 255
+#define IMX6SX_CLK_PLL7 256
+#define IMX6SX_PLL1_BYPASS 257
+#define IMX6SX_PLL2_BYPASS 258
+#define IMX6SX_PLL3_BYPASS 259
+#define IMX6SX_PLL4_BYPASS 260
+#define IMX6SX_PLL5_BYPASS 261
+#define IMX6SX_PLL6_BYPASS 262
+#define IMX6SX_PLL7_BYPASS 263
+#define IMX6SX_CLK_CLK_END 264
#endif /* __DT_BINDINGS_CLOCK_IMX6SX_H */
--
cgit v1.2.1
From dbaf381ffbf3acd4ac9a987f567a2b1a5edf6e62 Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@freescale.com>
Date: Tue, 9 Sep 2014 17:13:25 +0800
Subject: ARM: clk-imx6sl: refine clock tree for SSI
Each SSI has "ssi", "ssi_ipg" clocks, and they share same gate bits.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx6sl-clock.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx6sl-clock.h b/include/dt-bindings/clock/imx6sl-clock.h
index f10a928fe2dd..9ce4e421096f 100644
--- a/include/dt-bindings/clock/imx6sl-clock.h
+++ b/include/dt-bindings/clock/imx6sl-clock.h
@@ -171,6 +171,9 @@
#define IMX6SL_PLL5_BYPASS 158
#define IMX6SL_PLL6_BYPASS 159
#define IMX6SL_PLL7_BYPASS 160
-#define IMX6SL_CLK_END 161
+#define IMX6SL_CLK_SSI1_IPG 161
+#define IMX6SL_CLK_SSI2_IPG 162
+#define IMX6SL_CLK_SSI3_IPG 163
+#define IMX6SL_CLK_END 164
#endif /* __DT_BINDINGS_CLOCK_IMX6SL_H */
--
cgit v1.2.1
From 6f11c69d35d5b1db0ec4cfccd0188b00eada3ad3 Mon Sep 17 00:00:00 2001
From: Anson Huang <b20788@freescale.com>
Date: Thu, 11 Sep 2014 11:29:40 +0800
Subject: ARM: imx: add gpt_3m clk for i.mx6qdl
Add gpt_3m clock for i.mx6qdl, as gpt can source clock
from OSC, some i.MX6 series SOCs has fixed divider of
8 for gpt clock, so here add a fix clk of gpt_3m.
i.MX6Q TO1.0 has no gpt_3m option, so force it to be
from ipg_per.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx6qdl-clock.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h
index c0d88ab013b4..ddaef8620b2c 100644
--- a/include/dt-bindings/clock/imx6qdl-clock.h
+++ b/include/dt-bindings/clock/imx6qdl-clock.h
@@ -247,6 +247,7 @@
#define IMX6QDL_PLL5_BYPASS 234
#define IMX6QDL_PLL6_BYPASS 235
#define IMX6QDL_PLL7_BYPASS 236
-#define IMX6QDL_CLK_END 237
+#define IMX6QDL_CLK_GPT_3M 237
+#define IMX6QDL_CLK_END 238
#endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */
--
cgit v1.2.1
From 971427f353f3c42c8dcef62e7124440df68eb809 Mon Sep 17 00:00:00 2001
From: Andy Zhou <azhou@nicira.com>
Date: Mon, 15 Sep 2014 19:37:25 -0700
Subject: openvswitch: Add recirc and hash action.
Recirc action allows a packet to reenter openvswitch processing.
currently openvswitch lookup flow for packet received and execute
set of actions on that packet, with help of recirc action we can
process/modify the packet and recirculate it back in openvswitch
for another pass.
OVS hash action calculates 5-tupple hash and set hash in flow-key
hash. This can be used along with recirculation for distributing
packets among different ports for bond devices.
For example:
OVS bonding can use following actions:
Match on: bond flow; Action: hash, recirc(id)
Match on: recirc-id == id and hash lower bits == a;
Action: output port_bond_a
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
---
include/uapi/linux/openvswitch.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index a794d1dd7b40..f7fc507d82ab 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -289,6 +289,9 @@ enum ovs_key_attr {
OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */
OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */
OVS_KEY_ATTR_TCP_FLAGS, /* be16 TCP flags. */
+ OVS_KEY_ATTR_DP_HASH, /* u32 hash value. Value 0 indicates the hash
+ is not computed by the datapath. */
+ OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
#ifdef __KERNEL__
OVS_KEY_ATTR_IPV4_TUNNEL, /* struct ovs_key_ipv4_tunnel */
@@ -493,6 +496,27 @@ struct ovs_action_push_vlan {
__be16 vlan_tci; /* 802.1Q TCI (VLAN ID and priority). */
};
+/* Data path hash algorithm for computing Datapath hash.
+ *
+ * The algorithm type only specifies the fields in a flow
+ * will be used as part of the hash. Each datapath is free
+ * to use its own hash algorithm. The hash value will be
+ * opaque to the user space daemon.
+ */
+enum ovs_hash_alg {
+ OVS_HASH_ALG_L4,
+};
+
+/*
+ * struct ovs_action_hash - %OVS_ACTION_ATTR_HASH action argument.
+ * @hash_alg: Algorithm used to compute hash prior to recirculation.
+ * @hash_basis: basis used for computing hash.
+ */
+struct ovs_action_hash {
+ uint32_t hash_alg; /* One of ovs_hash_alg. */
+ uint32_t hash_basis;
+};
+
/**
* enum ovs_action_attr - Action types.
*
@@ -521,6 +545,8 @@ enum ovs_action_attr {
OVS_ACTION_ATTR_PUSH_VLAN, /* struct ovs_action_push_vlan. */
OVS_ACTION_ATTR_POP_VLAN, /* No argument. */
OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */
+ OVS_ACTION_ATTR_RECIRC, /* u32 recirc_id. */
+ OVS_ACTION_ATTR_HASH, /* struct ovs_action_hash. */
__OVS_ACTION_ATTR_MAX
};
--
cgit v1.2.1
From 3c5f8853469d3e549799808b9bf639b5d32751f0 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 4 Sep 2014 17:31:25 +0530
Subject: power-supply: Forward declare structs together
power_supply.h requires to forward declare few structures. One of them is done
at the top of the file and other one just before it is used. Declare them
together for better readability.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
include/linux/power_supply.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index de59a28b1b5b..3ed049673022 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -18,8 +18,6 @@
#include <linux/spinlock.h>
#include <linux/notifier.h>
-struct device;
-
/*
* All voltages, currents, charges, energies, time and temperatures in uV,
* µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise
@@ -175,6 +173,7 @@ union power_supply_propval {
const char *strval;
};
+struct device;
struct device_node;
struct power_supply {
--
cgit v1.2.1
From 184564efae4d775225c8fe3b762a56956fb1f827 Mon Sep 17 00:00:00 2001
From: Zhang Haoyu <zhanghy@sangfor.com>
Date: Thu, 11 Sep 2014 16:47:04 +0800
Subject: kvm: ioapic: conditionally delay irq delivery duringeoi broadcast
Currently, we call ioapic_service() immediately when we find the irq is still
active during eoi broadcast. But for real hardware, there's some delay between
the EOI writing and irq delivery. If we do not emulate this behavior, and
re-inject the interrupt immediately after the guest sends an EOI and re-enables
interrupts, a guest might spend all its time in the ISR if it has a broken
handler for a level-triggered interrupt.
Such livelock actually happens with Windows guests when resuming from
hibernation.
As there's no way to recognize the broken handle from new raised ones, this patch
delays an interrupt if 10.000 consecutive EOIs found that the interrupt was
still high. The guest can then make a little forward progress, until a proper
IRQ handler is set or until some detection routine in the guest (such as
Linux's note_interrupt()) recognizes the situation.
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Zhang Haoyu <zhanghy@sangfor.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/trace/events/kvm.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index 908925ace776..ab679c395042 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -95,6 +95,26 @@ TRACE_EVENT(kvm_ioapic_set_irq,
__entry->coalesced ? " (coalesced)" : "")
);
+TRACE_EVENT(kvm_ioapic_delayed_eoi_inj,
+ TP_PROTO(__u64 e),
+ TP_ARGS(e),
+
+ TP_STRUCT__entry(
+ __field( __u64, e )
+ ),
+
+ TP_fast_assign(
+ __entry->e = e;
+ ),
+
+ TP_printk("dst %x vec=%u (%s|%s|%s%s)",
+ (u8)(__entry->e >> 56), (u8)__entry->e,
+ __print_symbolic((__entry->e >> 8 & 0x7), kvm_deliver_mode),
+ (__entry->e & (1<<11)) ? "logical" : "physical",
+ (__entry->e & (1<<15)) ? "level" : "edge",
+ (__entry->e & (1<<16)) ? "|masked" : "")
+);
+
TRACE_EVENT(kvm_msi_set_irq,
TP_PROTO(__u64 address, __u64 data),
TP_ARGS(address, data),
--
cgit v1.2.1
From 1b0bf88fd8b845aef4300c7c0feca774265dd1c4 Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Tue, 9 Sep 2014 08:23:17 +0200
Subject: usb: gadget: f_fs: virtual endpoint address mapping
This patch introduces virtual endpoint address mapping. It separates
function logic form physical endpoint addresses making it more hardware
independent.
Following modifications changes user space API, so to enable them user
have to switch on the FUNCTIONFS_VIRTUAL_ADDR flag in descriptors.
Endpoints are now refered using virtual endpoint addresses chosen by
user in endpoint descpriptors. This applies to each context when endpoint
address can be used:
- when accessing endpoint files in FunctionFS filesystemi (in file name),
- in setup requests directed to specific endpoint (in wIndex field),
- in descriptors returned by FUNCTIONFS_ENDPOINT_DESC ioctl.
In endpoint file names the endpoint address number is formatted as
double-digit hexadecimal value ("ep%02x") which has few advantages -
it is easy to parse, allows to easly recognize endpoint direction basing
on its name (IN endpoint number starts with digit 8, and OUT with 0)
which can be useful for debugging purpose, and it makes easier to introduce
further features allowing to use each endpoint number in both directions
to have more endpoints available for function if hardware supports this
(for example we could have ep01 which is endpoint 1 with OUT direction,
and ep81 which is endpoint 1 with IN direction).
Physical endpoint address can be still obtained using ioctl named
FUNCTIONFS_ENDPOINT_REVMAP, but now it's not neccesary to handle
USB transactions properly.
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/uapi/linux/usb/functionfs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
index 7c7a2feb0e6e..295ba299e7bd 100644
--- a/include/uapi/linux/usb/functionfs.h
+++ b/include/uapi/linux/usb/functionfs.h
@@ -19,6 +19,7 @@ enum functionfs_flags {
FUNCTIONFS_HAS_HS_DESC = 2,
FUNCTIONFS_HAS_SS_DESC = 4,
FUNCTIONFS_HAS_MS_OS_DESC = 8,
+ FUNCTIONFS_VIRTUAL_ADDR = 16,
};
/* Descriptor of an non-audio endpoint */
--
cgit v1.2.1
From 53d91c5ce0cb8945b55e8bb54e551cabc51eb28d Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 16 Sep 2014 17:36:01 +0100
Subject: Provide a binary to hex conversion function
Provide a function to convert a buffer of binary data into an unterminated
ascii hex string representation of that data.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
include/linux/kernel.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 4c52907a6d8b..89a0b8e5a952 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -500,6 +500,7 @@ static inline char * __deprecated pack_hex_byte(char *buf, u8 byte)
extern int hex_to_bin(char ch);
extern int __must_check hex2bin(u8 *dst, const char *src, size_t count);
+extern char *bin2hex(char *dst, const void *src, size_t count);
int mac_pton(const char *s, u8 *mac);
--
cgit v1.2.1
From 462919591a1791e76042dc5c1e0148715df59beb Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 16 Sep 2014 17:36:02 +0100
Subject: KEYS: Preparse match data
Preparse the match data. This provides several advantages:
(1) The preparser can reject invalid criteria up front.
(2) The preparser can convert the criteria to binary data if necessary (the
asymmetric key type really wants to do binary comparison of the key IDs).
(3) The preparser can set the type of search to be performed. This means
that it's not then a one-off setting in the key type.
(4) The preparser can set an appropriate comparator function.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
include/keys/user-type.h | 4 +++-
include/linux/key-type.h | 31 ++++++++++++++++++++++++++++---
2 files changed, 31 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/keys/user-type.h b/include/keys/user-type.h
index 3ab1873a4bfa..66d92af30e7c 100644
--- a/include/keys/user-type.h
+++ b/include/keys/user-type.h
@@ -36,11 +36,13 @@ extern struct key_type key_type_user;
extern struct key_type key_type_logon;
struct key_preparsed_payload;
+struct key_match_data;
extern int user_preparse(struct key_preparsed_payload *prep);
extern void user_free_preparse(struct key_preparsed_payload *prep);
extern int user_update(struct key *key, struct key_preparsed_payload *prep);
-extern int user_match(const struct key *key, const void *criterion);
+extern int user_match(const struct key *key,
+ const struct key_match_data *match_data);
extern void user_revoke(struct key *key);
extern void user_destroy(struct key *key);
extern void user_describe(const struct key *user, struct seq_file *m);
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index 44792ee649de..8aba688a451a 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -52,6 +52,22 @@ struct key_preparsed_payload {
typedef int (*request_key_actor_t)(struct key_construction *key,
const char *op, void *aux);
+/*
+ * Preparsed matching criterion.
+ */
+struct key_match_data {
+ /* Comparison function, defaults to type->match, but can be replaced by
+ * type->match_preparse(). */
+ int (*cmp)(const struct key *key,
+ const struct key_match_data *match_data);
+
+ const void *raw_data; /* Raw match data */
+ void *preparsed; /* For ->match_preparse() to stash stuff */
+ unsigned lookup_type; /* Type of lookup for this search. */
+#define KEYRING_SEARCH_LOOKUP_DIRECT 0x0000 /* Direct lookup by description. */
+#define KEYRING_SEARCH_LOOKUP_ITERATE 0x0001 /* Iterative search. */
+};
+
/*
* kernel managed key type definition
*/
@@ -67,8 +83,6 @@ struct key_type {
/* Default key search algorithm. */
unsigned def_lookup_type;
-#define KEYRING_SEARCH_LOOKUP_DIRECT 0x0000 /* Direct lookup by description. */
-#define KEYRING_SEARCH_LOOKUP_ITERATE 0x0001 /* Iterative search. */
/* vet a description */
int (*vet_description)(const char *description);
@@ -96,8 +110,19 @@ struct key_type {
*/
int (*update)(struct key *key, struct key_preparsed_payload *prep);
+ /* Preparse the data supplied to ->match() (optional). The
+ * data to be preparsed can be found in match_data->raw_data.
+ * The lookup type can also be set by this function.
+ */
+ int (*match_preparse)(struct key_match_data *match_data);
+
/* match a key against a description */
- int (*match)(const struct key *key, const void *desc);
+ int (*match)(const struct key *key,
+ const struct key_match_data *match_data);
+
+ /* Free preparsed match data (optional). This should be supplied it
+ * ->match_preparse() is supplied. */
+ void (*match_free)(struct key_match_data *match_data);
/* clear some of the data from a key on revokation (optional)
* - the key's semaphore will be write-locked by the caller
--
cgit v1.2.1
From 614d8c39014c185aa0f7254f0a470cc33fc1b284 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 16 Sep 2014 17:36:04 +0100
Subject: KEYS: Remove key_type::def_lookup_type
Remove key_type::def_lookup_type as it's no longer used. The information now
defaults to KEYRING_SEARCH_LOOKUP_DIRECT but may be overridden by
type->match_preparse().
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
include/linux/key-type.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index 8aba688a451a..bf93ea609273 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -81,9 +81,6 @@ struct key_type {
*/
size_t def_datalen;
- /* Default key search algorithm. */
- unsigned def_lookup_type;
-
/* vet a description */
int (*vet_description)(const char *description);
--
cgit v1.2.1
From c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 16 Sep 2014 17:36:06 +0100
Subject: KEYS: Remove key_type::match in favour of overriding default by
match_preparse
A previous patch added a ->match_preparse() method to the key type. This is
allowed to override the function called by the iteration algorithm.
Therefore, we can just set a default that simply checks for an exact match of
the key description with the original criterion data and allow match_preparse
to override it as needed.
The key_type::match op is then redundant and can be removed, as can the
user_match() function.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
include/keys/user-type.h | 3 ---
include/linux/key-type.h | 4 ----
2 files changed, 7 deletions(-)
(limited to 'include')
diff --git a/include/keys/user-type.h b/include/keys/user-type.h
index 66d92af30e7c..cebefb069c44 100644
--- a/include/keys/user-type.h
+++ b/include/keys/user-type.h
@@ -36,13 +36,10 @@ extern struct key_type key_type_user;
extern struct key_type key_type_logon;
struct key_preparsed_payload;
-struct key_match_data;
extern int user_preparse(struct key_preparsed_payload *prep);
extern void user_free_preparse(struct key_preparsed_payload *prep);
extern int user_update(struct key *key, struct key_preparsed_payload *prep);
-extern int user_match(const struct key *key,
- const struct key_match_data *match_data);
extern void user_revoke(struct key *key);
extern void user_destroy(struct key *key);
extern void user_describe(const struct key *user, struct seq_file *m);
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index bf93ea609273..c14816bd3b44 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -113,10 +113,6 @@ struct key_type {
*/
int (*match_preparse)(struct key_match_data *match_data);
- /* match a key against a description */
- int (*match)(const struct key *key,
- const struct key_match_data *match_data);
-
/* Free preparsed match data (optional). This should be supplied it
* ->match_preparse() is supplied. */
void (*match_free)(struct key_match_data *match_data);
--
cgit v1.2.1
From 0c903ab64feb0fe83eac9f67a06e2f5b9508de16 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 16 Sep 2014 17:36:08 +0100
Subject: KEYS: Make the key matching functions return bool
Make the key matching functions pointed to by key_match_data::cmp return bool
rather than int.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
include/linux/key-type.h | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index c14816bd3b44..ff9f1d394235 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -56,10 +56,12 @@ typedef int (*request_key_actor_t)(struct key_construction *key,
* Preparsed matching criterion.
*/
struct key_match_data {
- /* Comparison function, defaults to type->match, but can be replaced by
- * type->match_preparse(). */
- int (*cmp)(const struct key *key,
- const struct key_match_data *match_data);
+ /* Comparison function, defaults to exact description match, but can be
+ * overridden by type->match_preparse(). Should return true if a match
+ * is found and false if not.
+ */
+ bool (*cmp)(const struct key *key,
+ const struct key_match_data *match_data);
const void *raw_data; /* Raw match data */
void *preparsed; /* For ->match_preparse() to stash stuff */
--
cgit v1.2.1
From 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 16 Sep 2014 17:36:11 +0100
Subject: KEYS: Implement binary asymmetric key ID handling
Implement the first step in using binary key IDs for asymmetric keys rather
than hex string keys.
The previously added match data preparsing will be able to convert hex
criterion strings into binary which can then be compared more rapidly.
Further, we actually want more then one ID string per public key. The problem
is that X.509 certs refer to other X.509 certs by matching Issuer + AuthKeyId
to Subject + SubjKeyId, but PKCS#7 messages match against X.509 Issuer +
SerialNumber.
This patch just provides facilities for a later patch to make use of.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
include/keys/asymmetric-type.h | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
(limited to 'include')
diff --git a/include/keys/asymmetric-type.h b/include/keys/asymmetric-type.h
index 7dd473496180..044ab0d3aa45 100644
--- a/include/keys/asymmetric-type.h
+++ b/include/keys/asymmetric-type.h
@@ -18,6 +18,44 @@
extern struct key_type key_type_asymmetric;
+/*
+ * Identifiers for an asymmetric key ID. We have three ways of looking up a
+ * key derived from an X.509 certificate:
+ *
+ * (1) Serial Number & Issuer. Non-optional. This is the only valid way to
+ * map a PKCS#7 signature to an X.509 certificate.
+ *
+ * (2) Issuer & Subject Unique IDs. Optional. These were the original way to
+ * match X.509 certificates, but have fallen into disuse in favour of (3).
+ *
+ * (3) Auth & Subject Key Identifiers. Optional. SKIDs are only provided on
+ * CA keys that are intended to sign other keys, so don't appear in end
+ * user certificates unless forced.
+ *
+ * We could also support an PGP key identifier, which is just a SHA1 sum of the
+ * public key and certain parameters, but since we don't support PGP keys at
+ * the moment, we shall ignore those.
+ *
+ * What we actually do is provide a place where binary identifiers can be
+ * stashed and then compare against them when checking for an id match.
+ */
+struct asymmetric_key_id {
+ unsigned short len;
+ unsigned char data[];
+};
+
+struct asymmetric_key_ids {
+ void *id[2];
+};
+
+extern bool asymmetric_key_id_same(const struct asymmetric_key_id *kid1,
+ const struct asymmetric_key_id *kid2);
+
+extern struct asymmetric_key_id *asymmetric_key_generate_id(const void *val_1,
+ size_t len_1,
+ const void *val_2,
+ size_t len_2);
+
/*
* The payload is at the discretion of the subtype.
*/
--
cgit v1.2.1
From 46963b774d441c833afc1535f6d84b3df2a94204 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 16 Sep 2014 17:36:13 +0100
Subject: KEYS: Overhaul key identification when searching for asymmetric keys
Make use of the new match string preparsing to overhaul key identification
when searching for asymmetric keys. The following changes are made:
(1) Use the previously created asymmetric_key_id struct to hold the following
key IDs derived from the X.509 certificate or PKCS#7 message:
id: serial number + issuer
skid: subjKeyId + subject
authority: authKeyId + issuer
(2) Replace the hex fingerprint attached to key->type_data[1] with an
asymmetric_key_ids struct containing the id and the skid (if present).
(3) Make the asymmetric_type match data preparse select one of two searches:
(a) An iterative search for the key ID given if prefixed with "id:". The
prefix is expected to be followed by a hex string giving the ID to
search for. The criterion key ID is checked against all key IDs
recorded on the key.
(b) A direct search if the key ID is not prefixed with "id:". This will
look for an exact match on the key description.
(4) Make x509_request_asymmetric_key() take a key ID. This is then converted
into "id:<hex>" and passed into keyring_search() where match preparsing
will turn it back into a binary ID.
(5) X.509 certificate verification then takes the authority key ID and looks
up a key that matches it to find the public key for the certificate
signature.
(6) PKCS#7 certificate verification then takes the id key ID and looks up a
key that matches it to find the public key for the signed information
block signature.
Additional changes:
(1) Multiple subjKeyId and authKeyId values on an X.509 certificate cause the
cert to be rejected with -EBADMSG.
(2) The 'fingerprint' ID is gone. This was primarily intended to convey PGP
public key fingerprints. If PGP is supported in future, this should
generate a key ID that carries the fingerprint.
(3) Th ca_keyid= kernel command line option is now converted to a key ID and
used to match the authority key ID. Possibly this should only match the
actual authKeyId part and not the issuer as well.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
include/crypto/public_key.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index 0d164c6af539..fa73a6fd536c 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -15,6 +15,7 @@
#define _LINUX_PUBLIC_KEY_H
#include <linux/mpi.h>
+#include <keys/asymmetric-type.h>
#include <crypto/hash_info.h>
enum pkey_algo {
@@ -98,8 +99,8 @@ struct key;
extern int verify_signature(const struct key *key,
const struct public_key_signature *sig);
+struct asymmetric_key_id;
extern struct key *x509_request_asymmetric_key(struct key *keyring,
- const char *issuer,
- const char *key_id);
+ const struct asymmetric_key_id *kid);
#endif /* _LINUX_PUBLIC_KEY_H */
--
cgit v1.2.1
From f4579fc57cf4244057b713b1f73f4dc9f0b11e97 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 25 Jul 2014 11:21:47 -0700
Subject: rcu: Fix attempt to avoid unsolicited offloading of callbacks
Commit b58cc46c5f6b (rcu: Don't offload callbacks unless specifically
requested) failed to adjust the callback lists of the CPUs that are
known to be no-CBs CPUs only because they are also nohz_full= CPUs.
This failure can result in callbacks that are posted during early boot
getting stranded on nxtlist for CPUs whose no-CBs property becomes
apparent late, and there can also be spurious warnings about offline
CPUs posting callbacks.
This commit fixes these problems by adding an early-boot rcu_init_nohz()
that properly initializes the no-CBs CPUs.
Note that kernels built with CONFIG_RCU_NOCB_CPU_ALL=y or with
CONFIG_RCU_NOCB_CPU=n do not exhibit this bug. Neither do kernels
booted without the nohz_full= boot parameter.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
include/linux/rcupdate.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index d231aa17b1d7..cc7bed1c90dc 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -269,6 +269,14 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
struct task_struct *next) { }
#endif /* CONFIG_RCU_USER_QS */
+#ifdef CONFIG_RCU_NOCB_CPU
+void rcu_init_nohz(void);
+#else /* #ifdef CONFIG_RCU_NOCB_CPU */
+static inline void rcu_init_nohz(void)
+{
+}
+#endif /* #else #ifdef CONFIG_RCU_NOCB_CPU */
+
/**
* RCU_NONIDLE - Indicate idle-loop code that needs RCU readers
* @a: Code that RCU needs to pay attention to.
--
cgit v1.2.1
From d36a7a0d5e8b5bff1671723d733eb61621b0cee4 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <dave@stgolabs.net>
Date: Thu, 11 Sep 2014 20:40:21 -0700
Subject: torture: Address race in module cleanup
When performing module cleanups by calling torture_cleanup() the
'torture_type' string in nullified However, callers are not necessarily
done, and might still need to reference the variable. This impacts
both rcutorture and locktorture, causing printing things like:
[ 94.226618] (null)-torture: Stopping lock_torture_writer task
[ 94.226624] (null)-torture: Stopping lock_torture_stats task
Thus delay this operation until the very end of the cleanup process.
The consequence (which shouldn't matter for this kid of program) is,
of course, that we delay the window between rmmod and modprobing,
for instance in module_torture_begin().
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/torture.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/torture.h b/include/linux/torture.h
index fec46f8c08eb..7759fc3c622d 100644
--- a/include/linux/torture.h
+++ b/include/linux/torture.h
@@ -77,7 +77,8 @@ int torture_stutter_init(int s);
/* Initialization and cleanup. */
bool torture_init_begin(char *ttype, bool v, int *runnable);
void torture_init_end(void);
-bool torture_cleanup(void);
+bool torture_cleanup_begin(void);
+void torture_cleanup_end(void);
bool torture_must_stop(void);
bool torture_must_stop_irq(void);
void torture_kthread_stopping(char *title);
--
cgit v1.2.1
From 59da22a02032cf1a069ec431f93d403b321ff6b4 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 12 Sep 2014 10:36:15 -0700
Subject: rcutorture: Rename rcutorture_runnable parameter
This commit changes rcutorture_runnable to torture_runnable, which is
consistent with the names of the other parameters and is a bit shorter
as well.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 5cafd60c1ee4..a4a819ffb2d1 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -47,9 +47,6 @@
#include <asm/barrier.h>
extern int rcu_expedited; /* for sysctl */
-#ifdef CONFIG_RCU_TORTURE_TEST
-extern int rcutorture_runnable; /* for sysctl */
-#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
enum rcutorture_type {
RCU_FLAVOR,
--
cgit v1.2.1
From eaacabc0d9b637c82788c66955b4ba0efebd5500 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Mon, 15 Sep 2014 16:15:01 -0500
Subject: irqchip: add irq-omap-intc.h header
OMAP INTC irqchip driver will be moved under
drivers/irqchip/ soon but we still have a dependency
with mach-omap2 when it comes to idle functions.
In order to make it easy to share those function
prototypes with OMAP PM code, we introduce this new
header.
To avoid modifying several board-files and some of
the PM-related code, we just include the new header
from common.h which was already included by all
users of IRQ-related PM code.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
include/linux/irqchip/irq-omap-intc.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 include/linux/irqchip/irq-omap-intc.h
(limited to 'include')
diff --git a/include/linux/irqchip/irq-omap-intc.h b/include/linux/irqchip/irq-omap-intc.h
new file mode 100644
index 000000000000..e06b370cfc0d
--- /dev/null
+++ b/include/linux/irqchip/irq-omap-intc.h
@@ -0,0 +1,32 @@
+/**
+ * irq-omap-intc.h - INTC Idle Functions
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Felipe Balbi <balbi@ti.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H
+#define __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H
+
+void omap2_init_irq(void);
+void omap3_init_irq(void);
+void ti81xx_init_irq(void);
+
+int omap_irq_pending(void);
+void omap_intc_save_context(void);
+void omap_intc_restore_context(void);
+void omap3_intc_suspend(void);
+void omap3_intc_prepare_idle(void);
+void omap3_intc_resume_idle(void);
+
+#endif /* __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H */
--
cgit v1.2.1
From ce0529843a505d09f5809a7db6288d2f038f64c4 Mon Sep 17 00:00:00 2001
From: Ethan Zhao <ethan.zhao@oracle.com>
Date: Tue, 9 Sep 2014 10:21:25 +0800
Subject: PCI: Add device flag helper functions
Add helper functions to hide direct device flag operations:
void pci_set_dev_assigned(struct pci_dev *dev);
void pci_clear_dev_assigned(struct pci_dev *dev);
bool pci_is_dev_assigned(struct pci_dev *dev);
Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/pci.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 61978a460841..92c131efec1c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1839,4 +1839,17 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
*/
struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);
+/* helper functions for operation of device flag */
+static inline void pci_set_dev_assigned(struct pci_dev *pdev)
+{
+ pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
+}
+static inline void pci_clear_dev_assigned(struct pci_dev *pdev)
+{
+ pdev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
+}
+static inline bool pci_is_dev_assigned(struct pci_dev *pdev)
+{
+ return (pdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) == PCI_DEV_FLAGS_ASSIGNED;
+}
#endif /* LINUX_PCI_H */
--
cgit v1.2.1
From e0d1b6b77ced59d852d38fcf9a8a0a1c40c84cee Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 14:08:55 +0200
Subject: PCI/AER: Make <linux/aer.h> standalone includable
The header file references u16 and u32 types, but they are not defined in
the header nor does the header pull in the necessary includes for them.
This causes build breakage when the file is included without any of the
dependencies being satisfied from somewhere else.
Fix this by including linux/types.h (for u16 and u32).
[bhelgaas: removed pci_dev declaration (already added by 5ccb8225abf2)]
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/aer.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/aer.h b/include/linux/aer.h
index c826d1c28f9c..4fef65e57023 100644
--- a/include/linux/aer.h
+++ b/include/linux/aer.h
@@ -7,6 +7,8 @@
#ifndef _AER_H_
#define _AER_H_
+#include <linux/types.h>
+
#define AER_NONFATAL 0
#define AER_FATAL 1
#define AER_CORRECTABLE 2
--
cgit v1.2.1
From 63ddc0b8fe5ebbac88e2ac84b489470bf3a22965 Mon Sep 17 00:00:00 2001
From: Megan Kamiya <megan.a.kamiya@intel.com>
Date: Fri, 5 Sep 2014 20:19:10 -0700
Subject: PCI: Parenthesize PCI_DEVID and PCI_VPD_LRDT_ID parameters
Add parentheses around parameters in PCI_DEVID and PCI_VPD_LRDT_ID macros
to prevent possible expansion errors as described by the CERT Secure Coding
Standard: PRE01-C: Use parentheses within macros around parameter names
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Megan Kamiya <megan.a.kamiya@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/pci.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 61978a460841..cb744f3925a4 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -45,7 +45,7 @@
* In the interest of not exposing interfaces to user-space unnecessarily,
* the following kernel-only defines are being added here.
*/
-#define PCI_DEVID(bus, devfn) ((((u16)bus) << 8) | devfn)
+#define PCI_DEVID(bus, devfn) ((((u16)(bus)) << 8) | (devfn))
/* return bus from PCI devid = ((u16)bus_number) << 8) | devfn */
#define PCI_BUS_NUM(x) (((x) >> 8) & 0xff)
@@ -1701,7 +1701,7 @@ bool pci_acs_path_enabled(struct pci_dev *start,
struct pci_dev *end, u16 acs_flags);
#define PCI_VPD_LRDT 0x80 /* Large Resource Data Type */
-#define PCI_VPD_LRDT_ID(x) (x | PCI_VPD_LRDT)
+#define PCI_VPD_LRDT_ID(x) ((x) | PCI_VPD_LRDT)
/* Large Resource Data Type Tag Item Names */
#define PCI_VPD_LTIN_ID_STRING 0x02 /* Identifier String */
--
cgit v1.2.1
From 0097db06f5ab2df1756bc4cbf4395593024d87a1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 16 Sep 2014 21:36:09 +0200
Subject: Bluetooth: Remove exported hci_recv_fragment function
The hci_recv_fragment function is no longer used by any driver and thus
do not export it. In fact it is not even needed by the core and it can
be removed altogether.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci_core.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 206b92bfeebb..37ff1aef0845 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -926,7 +926,6 @@ int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
-int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
void hci_init_sysfs(struct hci_dev *hdev);
--
cgit v1.2.1
From fef775caa705255358cdf7bbaf9bbc2fd1111761 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= <ezequiel@vanguardiasur.com.ar>
Date: Thu, 11 Sep 2014 12:02:08 -0300
Subject: nand: omap2: Add support for flash-based bad block table
This commit adds a new platform-data boolean property that enables use
of a flash-based bad block table. This can also be enabled by setting
the 'nand-on-flash-bbt' devicetree property.
If the flash BBT is not enabled, the driver falls back to use OOB
bad block markers only, as before. If the flash BBT is enabled the
kernel will keep track of bad blocks using a BBT, in addition to
the OOB markers.
As explained by Brian Norris the reasons for using a BBT are:
""
The primary reason would be that NAND datasheets specify it these days.
A better argument is that nobody guarantees that you can write a
bad block marker to a worn out block; you may just get program failures.
This has been acknowledged by several developers over the last several
years.
Additionally, you get a boot-time performance improvement if you only
have to read a few pages, instead of a page or two from every block on
the flash.
""
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/platform_data/mtd-nand-omap2.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index 16ec262dfcc8..090bbab0130a 100644
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h
@@ -71,6 +71,7 @@ struct omap_nand_platform_data {
struct mtd_partition *parts;
int nr_parts;
bool dev_ready;
+ bool flash_bbt;
enum nand_io xfer_type;
int devsize;
enum omap_ecc ecc_opt;
--
cgit v1.2.1
From d60eacb07053142bfb9b41582074a89a790a9d46 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 2 Sep 2014 10:27:33 +0100
Subject: KVM: device: add simple registration mechanism for kvm_device_ops
kvm_ioctl_create_device currently has knowledge of all the device types
and their associated ops. This is fairly inflexible when adding support
for new in-kernel device emulations, so move what we currently have out
into a table, which can support dynamic registration of ops by new
drivers for virtual hardware.
Cc: Alex Williamson <Alex.Williamson@redhat.com>
Cc: Alex Graf <agraf@suse.de>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 1 +
include/uapi/linux/kvm.h | 22 ++++++++++++++++------
2 files changed, 17 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index e098dce179df..b6e954742951 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1064,6 +1064,7 @@ struct kvm_device_ops {
void kvm_device_get(struct kvm_device *dev);
void kvm_device_put(struct kvm_device *dev);
struct kvm_device *kvm_device_from_filp(struct file *filp);
+int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type);
extern struct kvm_device_ops kvm_mpic_ops;
extern struct kvm_device_ops kvm_xics_ops;
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 0695a1e3e332..60768822b140 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -943,15 +943,25 @@ struct kvm_device_attr {
__u64 addr; /* userspace address of attr data */
};
-#define KVM_DEV_TYPE_FSL_MPIC_20 1
-#define KVM_DEV_TYPE_FSL_MPIC_42 2
-#define KVM_DEV_TYPE_XICS 3
-#define KVM_DEV_TYPE_VFIO 4
#define KVM_DEV_VFIO_GROUP 1
#define KVM_DEV_VFIO_GROUP_ADD 1
#define KVM_DEV_VFIO_GROUP_DEL 2
-#define KVM_DEV_TYPE_ARM_VGIC_V2 5
-#define KVM_DEV_TYPE_FLIC 6
+
+enum kvm_device_type {
+ KVM_DEV_TYPE_FSL_MPIC_20 = 1,
+#define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20
+ KVM_DEV_TYPE_FSL_MPIC_42,
+#define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42
+ KVM_DEV_TYPE_XICS,
+#define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS
+ KVM_DEV_TYPE_VFIO,
+#define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO
+ KVM_DEV_TYPE_ARM_VGIC_V2,
+#define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2
+ KVM_DEV_TYPE_FLIC,
+#define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC
+ KVM_DEV_TYPE_MAX,
+};
/*
* ioctls for VM fds
--
cgit v1.2.1
From c06a841bf36340e9e917ce60d11a6425ac85d0bd Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 2 Sep 2014 10:27:34 +0100
Subject: KVM: ARM: vgic: register kvm_device_ops dynamically
Now that we have a dynamic means to register kvm_device_ops, use that
for the ARM VGIC, instead of relying on the static table.
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index b6e954742951..601d321f96e7 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1069,7 +1069,6 @@ int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type);
extern struct kvm_device_ops kvm_mpic_ops;
extern struct kvm_device_ops kvm_xics_ops;
extern struct kvm_device_ops kvm_vfio_ops;
-extern struct kvm_device_ops kvm_arm_vgic_v2_ops;
extern struct kvm_device_ops kvm_flic_ops;
#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
--
cgit v1.2.1
From 84877d93336de21a6251db00b841468a83c65906 Mon Sep 17 00:00:00 2001
From: Cornelia Huck <cornelia.huck@de.ibm.com>
Date: Tue, 2 Sep 2014 10:27:35 +0100
Subject: KVM: s390: register flic ops dynamically
Using the new kvm_register_device_ops() interface makes us get rid of
an #ifdef in common code.
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 601d321f96e7..7ef088bec715 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1069,7 +1069,6 @@ int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type);
extern struct kvm_device_ops kvm_mpic_ops;
extern struct kvm_device_ops kvm_xics_ops;
extern struct kvm_device_ops kvm_vfio_ops;
-extern struct kvm_device_ops kvm_flic_ops;
#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
--
cgit v1.2.1
From 80ce1639727e9d38729c34f162378508c307ca25 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 2 Sep 2014 10:27:36 +0100
Subject: KVM: VFIO: register kvm_device_ops dynamically
Now that we have a dynamic means to register kvm_device_ops, use that
for the VFIO kvm device, instead of relying on the static table.
This is achieved by a module_init call to register the ops with KVM.
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Alex Williamson <Alex.Williamson@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 7ef088bec715..d44a2d640551 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1068,7 +1068,6 @@ int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type);
extern struct kvm_device_ops kvm_mpic_ops;
extern struct kvm_device_ops kvm_xics_ops;
-extern struct kvm_device_ops kvm_vfio_ops;
#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
--
cgit v1.2.1
From f7790029655f79cdcee4fa7c7884e0c2795ebebe Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 12 Sep 2014 16:40:20 -0400
Subject: lockd: move lockd's grace period handling into its own module
Currently, all of the grace period handling is part of lockd. Eventually
though we'd like to be able to build v4-only servers, at which point
we'll need to put all of this elsewhere.
Move the code itself into fs/nfs_common and have it build a grace.ko
module. Then, rejigger the Kconfig options so that both nfsd and lockd
enable it automatically.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
include/linux/proc_fs.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 9d117f61d976..b97bf2ef996e 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -74,6 +74,8 @@ static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *p
#endif /* CONFIG_PROC_FS */
+struct net;
+
static inline struct proc_dir_entry *proc_net_mkdir(
struct net *net, const char *name, struct proc_dir_entry *parent)
{
--
cgit v1.2.1
From d3982100baeb9bed8cf931545fb0522268f526e5 Mon Sep 17 00:00:00 2001
From: Mark Fasheh <mfasheh@suse.de>
Date: Thu, 17 Jul 2014 12:39:00 -0700
Subject: btrfs: add trace for qgroup accounting
We want this to debug qgroup changes on live systems.
Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
---
include/trace/events/btrfs.h | 56 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 4ee4e30d26d9..b8774b3f88d7 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -23,6 +23,7 @@ struct map_lookup;
struct extent_buffer;
struct btrfs_work;
struct __btrfs_workqueue;
+struct btrfs_qgroup_operation;
#define show_ref_type(type) \
__print_symbolic(type, \
@@ -1119,6 +1120,61 @@ DEFINE_EVENT(btrfs__workqueue_done, btrfs_workqueue_destroy,
TP_ARGS(wq)
);
+#define show_oper_type(type) \
+ __print_symbolic(type, \
+ { BTRFS_QGROUP_OPER_ADD_EXCL, "OPER_ADD_EXCL" }, \
+ { BTRFS_QGROUP_OPER_ADD_SHARED, "OPER_ADD_SHARED" }, \
+ { BTRFS_QGROUP_OPER_SUB_EXCL, "OPER_SUB_EXCL" }, \
+ { BTRFS_QGROUP_OPER_SUB_SHARED, "OPER_SUB_SHARED" })
+
+DECLARE_EVENT_CLASS(btrfs_qgroup_oper,
+
+ TP_PROTO(struct btrfs_qgroup_operation *oper),
+
+ TP_ARGS(oper),
+
+ TP_STRUCT__entry(
+ __field( u64, ref_root )
+ __field( u64, bytenr )
+ __field( u64, num_bytes )
+ __field( u64, seq )
+ __field( int, type )
+ __field( u64, elem_seq )
+ ),
+
+ TP_fast_assign(
+ __entry->ref_root = oper->ref_root;
+ __entry->bytenr = oper->bytenr,
+ __entry->num_bytes = oper->num_bytes;
+ __entry->seq = oper->seq;
+ __entry->type = oper->type;
+ __entry->elem_seq = oper->elem.seq;
+ ),
+
+ TP_printk("ref_root = %llu, bytenr = %llu, num_bytes = %llu, "
+ "seq = %llu, elem.seq = %llu, type = %s",
+ (unsigned long long)__entry->ref_root,
+ (unsigned long long)__entry->bytenr,
+ (unsigned long long)__entry->num_bytes,
+ (unsigned long long)__entry->seq,
+ (unsigned long long)__entry->elem_seq,
+ show_oper_type(__entry->type))
+);
+
+DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_account,
+
+ TP_PROTO(struct btrfs_qgroup_operation *oper),
+
+ TP_ARGS(oper)
+);
+
+DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_record_ref,
+
+ TP_PROTO(struct btrfs_qgroup_operation *oper),
+
+ TP_ARGS(oper)
+);
+
#endif /* _TRACE_BTRFS_H */
/* This part must be outside protection */
--
cgit v1.2.1
From b38a62586fed4ce058dc8d40deaa1b85cafc7fb3 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Tue, 12 Aug 2014 16:33:17 +0800
Subject: Btrfs: add work_struct information for workqueue tracepoint
Kernel workqueue's tracepoints print the address of work_struct, while btrfs
workqueue's tracepoints print the address of btrfs_work.
We need a connection between this two, for example when debuging, we usually
grep an address in the trace output. So it'd be better to also print
work_struct in btrfs workqueue's tracepoint.
Please note that we can only add this into those tracepoints whose work is still
available in memory because we need to reference the work.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
---
include/trace/events/btrfs.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index b8774b3f88d7..e3f3d10c6647 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -997,6 +997,7 @@ DECLARE_EVENT_CLASS(btrfs__work,
__field( void *, func )
__field( void *, ordered_func )
__field( void *, ordered_free )
+ __field( void *, normal_work )
),
TP_fast_assign(
@@ -1005,11 +1006,13 @@ DECLARE_EVENT_CLASS(btrfs__work,
__entry->func = work->func;
__entry->ordered_func = work->ordered_func;
__entry->ordered_free = work->ordered_free;
+ __entry->normal_work = &work->normal_work;
),
- TP_printk("work=%p, wq=%p, func=%p, ordered_func=%p, ordered_free=%p",
- __entry->work, __entry->wq, __entry->func,
- __entry->ordered_func, __entry->ordered_free)
+ TP_printk("work=%p (normal_work=%p), wq=%p, func=%p, ordered_func=%p,"
+ " ordered_free=%p",
+ __entry->work, __entry->normal_work, __entry->wq,
+ __entry->func, __entry->ordered_func, __entry->ordered_free)
);
/* For situiations that the work is freed */
--
cgit v1.2.1
From 1a76e4ba5b18775e532faa4f8eb858c4553d196c Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Tue, 12 Aug 2014 16:33:18 +0800
Subject: Btrfs: cleanup for btrfs workqueue tracepoints
Tracepoint trace_btrfs_normal_work_done never has an user, just cleanup it.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
---
include/trace/events/btrfs.h | 7 -------
1 file changed, 7 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index e3f3d10c6647..64a90d78e6bb 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -1047,13 +1047,6 @@ DEFINE_EVENT(btrfs__work, btrfs_work_sched,
TP_ARGS(work)
);
-DEFINE_EVENT(btrfs__work, btrfs_normal_work_done,
-
- TP_PROTO(struct btrfs_work *work),
-
- TP_ARGS(work)
-);
-
DEFINE_EVENT(btrfs__work__done, btrfs_all_work_done,
TP_PROTO(struct btrfs_work *work),
--
cgit v1.2.1
From b7831b20f32019b741eb8fe3435c2516e13e0c4a Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Fri, 15 Aug 2014 23:38:06 +0800
Subject: Btrfs: show real function name in btrfs workqueue tracepoint
Use %pf instead of %p, just same as kernel workqueue tracepoints.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
---
include/trace/events/btrfs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 64a90d78e6bb..e022a60699df 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -1009,7 +1009,7 @@ DECLARE_EVENT_CLASS(btrfs__work,
__entry->normal_work = &work->normal_work;
),
- TP_printk("work=%p (normal_work=%p), wq=%p, func=%p, ordered_func=%p,"
+ TP_printk("work=%p (normal_work=%p), wq=%p, func=%pf, ordered_func=%p,"
" ordered_free=%p",
__entry->work, __entry->normal_work, __entry->wq,
__entry->func, __entry->ordered_func, __entry->ordered_free)
--
cgit v1.2.1
From 6213daab2547fdc0d02a86abf3ac209ac6881ae3 Mon Sep 17 00:00:00 2001
From: Li Zefan <lizefan@huawei.com>
Date: Wed, 17 Sep 2014 18:18:09 +0800
Subject: cgroup: remove some useless forward declarations
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/cgroup.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index b5223c570eba..f7898e0bce1e 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -27,7 +27,6 @@
struct cgroup_root;
struct cgroup_subsys;
-struct inode;
struct cgroup;
extern int cgroup_init_early(void);
--
cgit v1.2.1
From 50849db32a9f529235a84bcc84a6b8e631b1d0ec Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Thu, 18 Sep 2014 00:58:12 -0400
Subject: jbd2: simplify calling convention around
__jbd2_journal_clean_checkpoint_list
__jbd2_journal_clean_checkpoint_list() returns number of buffers it
freed but noone was using the value so just stop doing that. This
also allows for simplifying the calling convention for
journal_clean_once_cp_list().
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
include/linux/jbd2.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 0dae71e9971c..704b9a599b26 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1042,7 +1042,7 @@ void jbd2_update_log_tail(journal_t *journal, tid_t tid, unsigned long block);
extern void jbd2_journal_commit_transaction(journal_t *);
/* Checkpoint list management */
-int __jbd2_journal_clean_checkpoint_list(journal_t *journal);
+void __jbd2_journal_clean_checkpoint_list(journal_t *journal);
int __jbd2_journal_remove_checkpoint(struct journal_head *);
void __jbd2_journal_insert_checkpoint(struct journal_head *, transaction_t *);
--
cgit v1.2.1
From b729bf34535ed413667b397a2f59cfa81266facf Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 19 Aug 2014 20:29:19 +0300
Subject: spi/pxa2xx: Don't use slave_id of dma_slave_config
That field has been deprecated in favour of getting the necessary
information from ACPI/DT.
However, we still need to deal systems that are PCI only (no ACPI to back
up). In order to support such systems, we allow the DMA filter function and
its corresponding parameter via pxa2xx_spi_master platform data. Then when
the pxa2xx_spi_dma_setup() doesn't find the channel via ACPI, it falls back
to use the given filter function.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/spi/pxa2xx_spi.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h
index 82d5111cd0c2..d5a316550177 100644
--- a/include/linux/spi/pxa2xx_spi.h
+++ b/include/linux/spi/pxa2xx_spi.h
@@ -23,6 +23,8 @@
#define PXA2XX_CS_ASSERT (0x01)
#define PXA2XX_CS_DEASSERT (0x02)
+struct dma_chan;
+
/* device.platform_data for SSP controller devices */
struct pxa2xx_spi_master {
u32 clock_enable;
@@ -30,10 +32,9 @@ struct pxa2xx_spi_master {
u8 enable_dma;
/* DMA engine specific config */
- int rx_chan_id;
- int tx_chan_id;
- int rx_slave_id;
- int tx_slave_id;
+ bool (*dma_filter)(struct dma_chan *chan, void *param);
+ void *tx_param;
+ void *rx_param;
/* For non-PXA arches */
struct ssp_device ssp;
--
cgit v1.2.1
From 689f1c9de2abbd76fda224d12cea5f43568a4335 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 18 Sep 2014 16:38:18 +0800
Subject: ipsec: Remove obsolete MAX_AH_AUTH_LEN
While tracking down the MAX_AH_AUTH_LEN crash in an old kernel
I thought that this limit was rather arbitrary and we should
just get rid of it.
In fact it seems that we've already done all the work needed
to remove it apart from actually removing it. This limit was
there in order to limit stack usage. Since we've already
switched over to allocating scratch space using kmalloc, there
is no longer any need to limit the authentication length.
This patch kills all references to it, including the BUG_ONs
that led me here.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
include/net/ah.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/net/ah.h b/include/net/ah.h
index ca95b98969dd..4e2dfa474a7e 100644
--- a/include/net/ah.h
+++ b/include/net/ah.h
@@ -3,9 +3,6 @@
#include <linux/skbuff.h>
-/* This is the maximum truncated ICV length that we know of. */
-#define MAX_AH_AUTH_LEN 64
-
struct crypto_ahash;
struct ah_data {
--
cgit v1.2.1
From d364a77d02071355edbd5ee26c248b1ea75c653c Mon Sep 17 00:00:00 2001
From: Mikko Perttunen <mperttunen@nvidia.com>
Date: Fri, 11 Jul 2014 17:18:28 +0300
Subject: ARM: tegra: Add PLL_M_UD and PLL_C_UD to tegra124-car binding header
Add these clocks to the binding header so that EMC timings that have
them as parent can refer to the clocks.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---
include/dt-bindings/clock/tegra124-car.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/tegra124-car.h b/include/dt-bindings/clock/tegra124-car.h
index 8a4c5892890f..6bac637fd635 100644
--- a/include/dt-bindings/clock/tegra124-car.h
+++ b/include/dt-bindings/clock/tegra124-car.h
@@ -337,6 +337,10 @@
#define TEGRA124_CLK_DSIB_MUX 310
#define TEGRA124_CLK_SOR0_LVDS 311
#define TEGRA124_CLK_XUSB_SS_DIV2 312
-#define TEGRA124_CLK_CLK_MAX 313
+
+#define TEGRA124_CLK_PLL_M_UD 313
+#define TEGRA124_CLK_PLL_C_UD 314
+
+#define TEGRA124_CLK_CLK_MAX 315
#endif /* _DT_BINDINGS_CLOCK_TEGRA124_CAR_H */
--
cgit v1.2.1
From 254a2d14fa77ac8a1b64f6171ec5f717f0753b53 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Wed, 17 Sep 2014 21:36:41 +0800
Subject: Btrfs: fix wrong parse of extent map's tracepoint
The tracepoint of extent map doesn't parse @flag correctly, we set @flag via
set_bit(), so we need to parse it on a bit bias.
Also add the missing flag, EXTENT_FLAG_FS_MAPPING.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
---
include/trace/events/btrfs.h | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index e022a60699df..1faecea101f3 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -158,12 +158,13 @@ DEFINE_EVENT(btrfs__inode, btrfs_inode_evict,
#define show_map_flags(flag) \
__print_flags(flag, "|", \
- { EXTENT_FLAG_PINNED, "PINNED" }, \
- { EXTENT_FLAG_COMPRESSED, "COMPRESSED" }, \
- { EXTENT_FLAG_VACANCY, "VACANCY" }, \
- { EXTENT_FLAG_PREALLOC, "PREALLOC" }, \
- { EXTENT_FLAG_LOGGING, "LOGGING" }, \
- { EXTENT_FLAG_FILLING, "FILLING" })
+ { (1 << EXTENT_FLAG_PINNED), "PINNED" },\
+ { (1 << EXTENT_FLAG_COMPRESSED), "COMPRESSED" },\
+ { (1 << EXTENT_FLAG_VACANCY), "VACANCY" },\
+ { (1 << EXTENT_FLAG_PREALLOC), "PREALLOC" },\
+ { (1 << EXTENT_FLAG_LOGGING), "LOGGING" },\
+ { (1 << EXTENT_FLAG_FILLING), "FILLING" },\
+ { (1 << EXTENT_FLAG_FS_MAPPING), "FS_MAPPING" })
TRACE_EVENT_CONDITION(btrfs_get_extent,
--
cgit v1.2.1
From 175655bd79b815f2b2035f3b44117c60be90e1d4 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 16 Sep 2014 17:36:28 -0700
Subject: ARM: OMAP: Remove unused pieces of legacy DMA API
We're moving to the dmaengine API, so let's remove the unused
pieces of the omap legacy DMA code to make sure we don't get
any new users for these:
omap_set_dma_color_mode
omap_set_dma_src_index
omap_set_dma_dest_index
omap_dma_unlink_lch
omap_clear_dma
omap_dma_running
omap_dma_set_prio_lch
omap_set_dma_dst_endian_type
omap_set_dma_src_endian_type
omap_get_dma_index
omap_dma_disable_irq
omap_request_dma_chain
omap_free_dma_chain
omap_dma_chain_a_transfer
omap_start_dma_chain_transfers
omap_stop_dma_chain_transfers
omap_get_dma_chain_index
omap_get_dma_chain_dst_pos
omap_get_dma_chain_src_pos
omap_modify_dma_chain_params
omap_dma_chain_status
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
include/linux/omap-dma.h | 37 -------------------------------------
1 file changed, 37 deletions(-)
(limited to 'include')
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 6f06f8bc612c..e5a70132a240 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -306,15 +306,12 @@ extern void omap_set_dma_transfer_params(int lch, int data_type,
int elem_count, int frame_count,
int sync_mode,
int dma_trigger, int src_or_dst_synch);
-extern void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode,
- u32 color);
extern void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode);
extern void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode);
extern void omap_set_dma_src_params(int lch, int src_port, int src_amode,
unsigned long src_start,
int src_ei, int src_fi);
-extern void omap_set_dma_src_index(int lch, int eidx, int fidx);
extern void omap_set_dma_src_data_pack(int lch, int enable);
extern void omap_set_dma_src_burst_mode(int lch,
enum omap_dma_burst_mode burst_mode);
@@ -322,7 +319,6 @@ extern void omap_set_dma_src_burst_mode(int lch,
extern void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
unsigned long dest_start,
int dst_ei, int dst_fi);
-extern void omap_set_dma_dest_index(int lch, int eidx, int fidx);
extern void omap_set_dma_dest_data_pack(int lch, int enable);
extern void omap_set_dma_dest_burst_mode(int lch,
enum omap_dma_burst_mode burst_mode);
@@ -331,52 +327,19 @@ extern void omap_set_dma_params(int lch,
struct omap_dma_channel_params *params);
extern void omap_dma_link_lch(int lch_head, int lch_queue);
-extern void omap_dma_unlink_lch(int lch_head, int lch_queue);
extern int omap_set_dma_callback(int lch,
void (*callback)(int lch, u16 ch_status, void *data),
void *data);
extern dma_addr_t omap_get_dma_src_pos(int lch);
extern dma_addr_t omap_get_dma_dst_pos(int lch);
-extern void omap_clear_dma(int lch);
extern int omap_get_dma_active_status(int lch);
extern int omap_dma_running(void);
extern void omap_dma_set_global_params(int arb_rate, int max_fifo_depth,
int tparams);
-extern int omap_dma_set_prio_lch(int lch, unsigned char read_prio,
- unsigned char write_prio);
-extern void omap_set_dma_dst_endian_type(int lch, enum end_type etype);
-extern void omap_set_dma_src_endian_type(int lch, enum end_type etype);
-extern int omap_get_dma_index(int lch, int *ei, int *fi);
-
void omap_dma_global_context_save(void);
void omap_dma_global_context_restore(void);
-extern void omap_dma_disable_irq(int lch);
-
-/* Chaining APIs */
-#ifndef CONFIG_ARCH_OMAP1
-extern int omap_request_dma_chain(int dev_id, const char *dev_name,
- void (*callback) (int lch, u16 ch_status,
- void *data),
- int *chain_id, int no_of_chans,
- int chain_mode,
- struct omap_dma_channel_params params);
-extern int omap_free_dma_chain(int chain_id);
-extern int omap_dma_chain_a_transfer(int chain_id, int src_start,
- int dest_start, int elem_count,
- int frame_count, void *callbk_data);
-extern int omap_start_dma_chain_transfers(int chain_id);
-extern int omap_stop_dma_chain_transfers(int chain_id);
-extern int omap_get_dma_chain_index(int chain_id, int *ei, int *fi);
-extern int omap_get_dma_chain_dst_pos(int chain_id);
-extern int omap_get_dma_chain_src_pos(int chain_id);
-
-extern int omap_modify_dma_chain_params(int chain_id,
- struct omap_dma_channel_params params);
-extern int omap_dma_chain_status(int chain_id);
-#endif
-
#if defined(CONFIG_ARCH_OMAP1) && IS_ENABLED(CONFIG_FB_OMAP)
#include <mach/lcd_dma.h>
#else
--
cgit v1.2.1
From 971ff49355387fef41d1327434d8939721a4eb35 Mon Sep 17 00:00:00 2001
From: Zefan Li <lizefan@huawei.com>
Date: Thu, 18 Sep 2014 16:06:19 +0800
Subject: cgroup: use a per-cgroup work for release agent
Instead of using a global work to schedule release agent on removable
cgroups, we change to use a per-cgroup work to do this, which makes
the code much simpler.
v2: use a dedicated work instead of reusing css->destroy_work. (Tejun)
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/cgroup.h | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index f7898e0bce1e..51958d0fb88f 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -233,13 +233,6 @@ struct cgroup {
*/
struct list_head e_csets[CGROUP_SUBSYS_COUNT];
- /*
- * Linked list running through all cgroups that can
- * potentially be reaped by the release agent. Protected by
- * release_list_lock
- */
- struct list_head release_list;
-
/*
* list of pidlists, up to two for each namespace (one for procs, one
* for tasks); created on demand.
@@ -249,6 +242,9 @@ struct cgroup {
/* used to wait for offlining of csses */
wait_queue_head_t offline_waitq;
+
+ /* used to schedule release agent */
+ struct work_struct release_agent_work;
};
#define MAX_CGROUP_ROOT_NAMELEN 64
--
cgit v1.2.1
From 006f4ac49742b5f70ef7e39176fd42a500144ccc Mon Sep 17 00:00:00 2001
From: Zefan Li <lizefan@huawei.com>
Date: Thu, 18 Sep 2014 16:03:15 +0800
Subject: cgroup: simplify proc_cgroup_show()
Use the ONE macro instead of REG, and we can simplify proc_cgroup_show().
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/cgroup.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 51958d0fb88f..77a1d37b742b 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -37,7 +37,8 @@ extern void cgroup_exit(struct task_struct *p);
extern int cgroupstats_build(struct cgroupstats *stats,
struct dentry *dentry);
-extern int proc_cgroup_show(struct seq_file *, void *);
+extern int proc_cgroup_show(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *tsk);
/* define the enumeration of all cgroup subsystems */
#define SUBSYS(_x) _x ## _cgrp_id,
--
cgit v1.2.1
From 52de4779f201758ddcf37360f09a16895756e708 Mon Sep 17 00:00:00 2001
From: Zefan Li <lizefan@huawei.com>
Date: Thu, 18 Sep 2014 16:03:36 +0800
Subject: cpuset: simplify proc_cpuset_show()
Use the ONE macro instead of REG, and we can simplify proc_cpuset_show().
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/cpuset.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index ade2390ffe92..0d4e0675b318 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -86,7 +86,8 @@ extern void __cpuset_memory_pressure_bump(void);
extern void cpuset_task_status_allowed(struct seq_file *m,
struct task_struct *task);
-extern int proc_cpuset_show(struct seq_file *, void *);
+extern int proc_cpuset_show(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *tsk);
extern int cpuset_mem_spread_node(void);
extern int cpuset_slab_spread_node(void);
--
cgit v1.2.1
From 69803d4f487fc60ce740f1fe1f0d2092d97277b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gr=C3=A9gory=20Soutad=C3=A9?= <gsoutade@neotion.com>
Date: Mon, 15 Sep 2014 17:47:09 +0200
Subject: mmc: Replace "enhanced_area_en" attribute by
"partition_setting_completed"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Replace ext_csd "enhanced_area_en" attribute by
"partition_setting_completed". It was used whether or
not enhanced user area is defined and without checks of
EXT_CSD_PARTITION_SETTING_COMPLETED bit.
Signed-off-by: Grégory Soutadé <gsoutade@neotion.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/card.h | 2 +-
include/linux/mmc/mmc.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 0ea795f5feb9..b0692d28f8e6 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -75,7 +75,7 @@ struct mmc_ext_csd {
unsigned int sec_trim_mult; /* Secure trim multiplier */
unsigned int sec_erase_mult; /* Secure erase multiplier */
unsigned int trim_timeout; /* In milliseconds */
- bool enhanced_area_en; /* enable bit */
+ bool partition_setting_completed; /* enable bit */
unsigned long long enhanced_area_offset; /* Units: Byte */
unsigned int enhanced_area_size; /* Units: KB */
unsigned int cache_size; /* Units: KB */
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 64ec963ed347..78753bc90a87 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -281,6 +281,7 @@ struct _mmc_csd {
#define EXT_CSD_EXP_EVENTS_CTRL 56 /* R/W, 2 bytes */
#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */
#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
+#define EXT_CSD_PARTITION_SETTING_COMPLETED 155 /* R/W */
#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */
#define EXT_CSD_PARTITION_SUPPORT 160 /* RO */
#define EXT_CSD_HPI_MGMT 161 /* R/W */
@@ -349,6 +350,7 @@ struct _mmc_csd {
#define EXT_CSD_PART_CONFIG_ACC_RPMB (0x3)
#define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4)
+#define EXT_CSD_PART_SETTING_COMPLETED (0x1)
#define EXT_CSD_PART_SUPPORT_PART_EN (0x1)
#define EXT_CSD_CMD_SET_NORMAL (1<<0)
--
cgit v1.2.1
From dd56af42bd829c6e770ed69812bd65a04eaeb1e4 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Mon, 25 Aug 2014 20:25:06 -0700
Subject: rcu: Eliminate deadlock between CPU hotplug and expedited grace
periods
Currently, the expedited grace-period primitives do get_online_cpus().
This greatly simplifies their implementation, but means that calls
to them holding locks that are acquired by CPU-hotplug notifiers (to
say nothing of calls to these primitives from CPU-hotplug notifiers)
can deadlock. But this is starting to become inconvenient, as can be
seen here: https://lkml.org/lkml/2014/8/5/754. The problem in this
case is that some developers need to acquire a mutex from a CPU-hotplug
notifier, but also need to hold it across a synchronize_rcu_expedited().
As noted above, this currently results in deadlock.
This commit avoids the deadlock and retains the simplicity by creating
a try_get_online_cpus(), which returns false if the get_online_cpus()
reference count could not immediately be incremented. If a call to
try_get_online_cpus() returns true, the expedited primitives operate as
before. If a call returns false, the expedited primitives fall back to
normal grace-period operations. This falling back of course results in
increased grace-period latency, but only during times when CPU hotplug
operations are actually in flight. The effect should therefore be
negligible during normal operation.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Tested-by: Lan Tianyu <tianyu.lan@intel.com>
---
include/linux/cpu.h | 2 ++
include/linux/lockdep.h | 1 +
2 files changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 95978ad7fcdd..b2d9a43012b2 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -213,6 +213,7 @@ extern struct bus_type cpu_subsys;
extern void cpu_hotplug_begin(void);
extern void cpu_hotplug_done(void);
extern void get_online_cpus(void);
+extern bool try_get_online_cpus(void);
extern void put_online_cpus(void);
extern void cpu_hotplug_disable(void);
extern void cpu_hotplug_enable(void);
@@ -230,6 +231,7 @@ int cpu_down(unsigned int cpu);
static inline void cpu_hotplug_begin(void) {}
static inline void cpu_hotplug_done(void) {}
#define get_online_cpus() do { } while (0)
+#define try_get_online_cpus() true
#define put_online_cpus() do { } while (0)
#define cpu_hotplug_disable() do { } while (0)
#define cpu_hotplug_enable() do { } while (0)
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 008388f920d7..4f86465cc317 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -505,6 +505,7 @@ static inline void print_irqtrace_events(struct task_struct *curr)
#define lock_map_acquire(l) lock_acquire_exclusive(l, 0, 0, NULL, _THIS_IP_)
#define lock_map_acquire_read(l) lock_acquire_shared_recursive(l, 0, 0, NULL, _THIS_IP_)
+#define lock_map_acquire_tryread(l) lock_acquire_shared_recursive(l, 0, 1, NULL, _THIS_IP_)
#define lock_map_release(l) lock_release(l, 1, _THIS_IP_)
#ifdef CONFIG_PROVE_LOCKING
--
cgit v1.2.1
From 227844f53864077ccaefe01d0960fcccc03445ce Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Mon, 9 Jun 2014 12:27:18 +0200
Subject: arm/arm64: KVM: Rename irq_state to irq_pending
The irq_state field on the distributor struct is ambiguous in its
meaning; the comment says it's the level of the input put, but that
doesn't make much sense for edge-triggered interrupts. The code
actually uses this state variable to check if the interrupt is in the
pending state on the distributor so clarify the comment and rename the
actual variable and accessor methods.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_vgic.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 35b0c121bb65..388d442eecb5 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -140,8 +140,8 @@ struct vgic_dist {
/* Interrupt enabled (one bit per IRQ) */
struct vgic_bitmap irq_enabled;
- /* Interrupt 'pin' level */
- struct vgic_bitmap irq_state;
+ /* Interrupt state is pending on the distributor */
+ struct vgic_bitmap irq_pending;
/* Level-triggered interrupt in progress */
struct vgic_bitmap irq_active;
--
cgit v1.2.1
From dbf20f9d8105cca531614c8bff9a74351e8e67e7 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Mon, 9 Jun 2014 12:55:13 +0200
Subject: arm/arm64: KVM: Rename irq_active to irq_queued
We have a special bitmap on the distributor struct to keep track of when
level-triggered interrupts are queued on the list registers. This was
named irq_active, which is confusing, because the active state of an
interrupt as per the GIC spec is a different thing, not specifically
related to edge-triggered/level-triggered configurations but rather
indicates an interrupt which has been ack'ed but not yet eoi'ed.
Rename the bitmap and the corresponding accessor functions to irq_queued
to clarify what this is actually used for.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_vgic.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 388d442eecb5..7d8e61fa9928 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -143,8 +143,8 @@ struct vgic_dist {
/* Interrupt state is pending on the distributor */
struct vgic_bitmap irq_pending;
- /* Level-triggered interrupt in progress */
- struct vgic_bitmap irq_active;
+ /* Level-triggered interrupt queued on VCPU interface */
+ struct vgic_bitmap irq_queued;
/* Interrupt priority. Not used yet. */
struct vgic_bytemap irq_priority;
--
cgit v1.2.1
From faa1b46c3e9f4d40359aee04ff275eea5f4cae3a Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Sat, 14 Jun 2014 21:54:51 +0200
Subject: arm/arm64: KVM: vgic: Improve handling of GICD_I{CS}PENDRn
Writes to GICD_ISPENDRn and GICD_ICPENDRn are currently not handled
correctly for level-triggered interrupts. The spec states that for
level-triggered interrupts, writes to the GICD_ISPENDRn activate the
output of a flip-flop which is in turn or'ed with the actual input
interrupt signal. Correspondingly, writes to GICD_ICPENDRn simply
deactivates the output of that flip-flop, but does not (of course) affect
the external input signal. Reads from GICC_IAR will also deactivate the
flip-flop output.
This requires us to track the state of the level-input separately from
the state in the flip-flop. We therefore introduce two new variables on
the distributor struct to track these two states. Astute readers may
notice that this is introducing more state than required (because an OR
of the two states gives you the pending state), but the remaining vgic
code uses the pending bitmap for optimized operations to figure out, at
the end of the day, if an interrupt is pending or not on the distributor
side. Refactoring the code to consider the two state variables all the
places where we currently access the precomputed pending value, did not
look pretty.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_vgic.h | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 7d8e61fa9928..f074539c6ac5 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -140,9 +140,23 @@ struct vgic_dist {
/* Interrupt enabled (one bit per IRQ) */
struct vgic_bitmap irq_enabled;
- /* Interrupt state is pending on the distributor */
+ /* Level-triggered interrupt external input is asserted */
+ struct vgic_bitmap irq_level;
+
+ /*
+ * Interrupt state is pending on the distributor
+ */
struct vgic_bitmap irq_pending;
+ /*
+ * Tracks writes to GICD_ISPENDRn and GICD_ICPENDRn for level-triggered
+ * interrupts. Essentially holds the state of the flip-flop in
+ * Figure 4-10 on page 4-101 in ARM IHI 0048B.b.
+ * Once set, it is only cleared for level-triggered interrupts on
+ * guest ACKs (when we queue it) or writes to GICD_ICPENDRn.
+ */
+ struct vgic_bitmap irq_soft_pend;
+
/* Level-triggered interrupt queued on VCPU interface */
struct vgic_bitmap irq_queued;
--
cgit v1.2.1
From c1bfb577addd4867a82c4f235824a315d5afb94a Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 8 Jul 2014 12:09:01 +0100
Subject: arm/arm64: KVM: vgic: switch to dynamic allocation
So far, all the VGIC data structures are statically defined by the
*maximum* number of vcpus and interrupts it supports. It means that
we always have to oversize it to cater for the worse case.
Start by changing the data structures to be dynamically sizeable,
and allocate them at runtime.
The sizes are still very static though.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
include/kvm/arm_vgic.h | 76 ++++++++++++++++++++++++++++++++++++++------------
1 file changed, 58 insertions(+), 18 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index f074539c6ac5..fd1b8f252da1 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -54,19 +54,33 @@
* - a bunch of shared interrupts (SPI)
*/
struct vgic_bitmap {
- union {
- u32 reg[VGIC_NR_PRIVATE_IRQS / 32];
- DECLARE_BITMAP(reg_ul, VGIC_NR_PRIVATE_IRQS);
- } percpu[VGIC_MAX_CPUS];
- union {
- u32 reg[VGIC_NR_SHARED_IRQS / 32];
- DECLARE_BITMAP(reg_ul, VGIC_NR_SHARED_IRQS);
- } shared;
+ /*
+ * - One UL per VCPU for private interrupts (assumes UL is at
+ * least 32 bits)
+ * - As many UL as necessary for shared interrupts.
+ *
+ * The private interrupts are accessed via the "private"
+ * field, one UL per vcpu (the state for vcpu n is in
+ * private[n]). The shared interrupts are accessed via the
+ * "shared" pointer (IRQn state is at bit n-32 in the bitmap).
+ */
+ unsigned long *private;
+ unsigned long *shared;
};
struct vgic_bytemap {
- u32 percpu[VGIC_MAX_CPUS][VGIC_NR_PRIVATE_IRQS / 4];
- u32 shared[VGIC_NR_SHARED_IRQS / 4];
+ /*
+ * - 8 u32 per VCPU for private interrupts
+ * - As many u32 as necessary for shared interrupts.
+ *
+ * The private interrupts are accessed via the "private"
+ * field, (the state for vcpu n is in private[n*8] to
+ * private[n*8 + 7]). The shared interrupts are accessed via
+ * the "shared" pointer (IRQn state is at byte (n-32)%4 of the
+ * shared[(n-32)/4] word).
+ */
+ u32 *private;
+ u32 *shared;
};
struct kvm_vcpu;
@@ -127,6 +141,9 @@ struct vgic_dist {
bool in_kernel;
bool ready;
+ int nr_cpus;
+ int nr_irqs;
+
/* Virtual control interface mapping */
void __iomem *vctrl_base;
@@ -166,15 +183,36 @@ struct vgic_dist {
/* Level/edge triggered */
struct vgic_bitmap irq_cfg;
- /* Source CPU per SGI and target CPU */
- u8 irq_sgi_sources[VGIC_MAX_CPUS][VGIC_NR_SGIS];
+ /*
+ * Source CPU per SGI and target CPU:
+ *
+ * Each byte represent a SGI observable on a VCPU, each bit of
+ * this byte indicating if the corresponding VCPU has
+ * generated this interrupt. This is a GICv2 feature only.
+ *
+ * For VCPUn (n < 8), irq_sgi_sources[n*16] to [n*16 + 15] are
+ * the SGIs observable on VCPUn.
+ */
+ u8 *irq_sgi_sources;
- /* Target CPU for each IRQ */
- u8 irq_spi_cpu[VGIC_NR_SHARED_IRQS];
- struct vgic_bitmap irq_spi_target[VGIC_MAX_CPUS];
+ /*
+ * Target CPU for each SPI:
+ *
+ * Array of available SPI, each byte indicating the target
+ * VCPU for SPI. IRQn (n >=32) is at irq_spi_cpu[n-32].
+ */
+ u8 *irq_spi_cpu;
+
+ /*
+ * Reverse lookup of irq_spi_cpu for faster compute pending:
+ *
+ * Array of bitmaps, one per VCPU, describing if IRQn is
+ * routed to a particular VCPU.
+ */
+ struct vgic_bitmap *irq_spi_target;
/* Bitmap indicating which CPU has something pending */
- unsigned long irq_pending_on_cpu;
+ unsigned long *irq_pending_on_cpu;
#endif
};
@@ -204,11 +242,11 @@ struct vgic_v3_cpu_if {
struct vgic_cpu {
#ifdef CONFIG_KVM_ARM_VGIC
/* per IRQ to LR mapping */
- u8 vgic_irq_lr_map[VGIC_NR_IRQS];
+ u8 *vgic_irq_lr_map;
/* Pending interrupts on this VCPU */
DECLARE_BITMAP( pending_percpu, VGIC_NR_PRIVATE_IRQS);
- DECLARE_BITMAP( pending_shared, VGIC_NR_SHARED_IRQS);
+ unsigned long *pending_shared;
/* Bitmap of used/free list registers */
DECLARE_BITMAP( lr_used, VGIC_V2_MAX_LRS);
@@ -239,7 +277,9 @@ int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr, bool write);
int kvm_vgic_hyp_init(void);
int kvm_vgic_init(struct kvm *kvm);
int kvm_vgic_create(struct kvm *kvm);
+void kvm_vgic_destroy(struct kvm *kvm);
int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu);
+void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu);
void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu);
void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu);
int kvm_vgic_inject_irq(struct kvm *kvm, int cpuid, unsigned int irq_num,
--
cgit v1.2.1
From fb65ab63b8cae510ea1e43e68b5da2f9980aa6d5 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 8 Jul 2014 12:09:02 +0100
Subject: arm/arm64: KVM: vgic: Parametrize VGIC_NR_SHARED_IRQS
Having a dynamic number of supported interrupts means that we
cannot relly on VGIC_NR_SHARED_IRQS being fixed anymore.
Instead, make it take the distributor structure as a parameter,
so it can return the right value.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
include/kvm/arm_vgic.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index fd1b8f252da1..b2f9936df319 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -29,7 +29,6 @@
#define VGIC_NR_SGIS 16
#define VGIC_NR_PPIS 16
#define VGIC_NR_PRIVATE_IRQS (VGIC_NR_SGIS + VGIC_NR_PPIS)
-#define VGIC_NR_SHARED_IRQS (VGIC_NR_IRQS - VGIC_NR_PRIVATE_IRQS)
#define VGIC_MAX_CPUS KVM_MAX_VCPUS
#define VGIC_V2_MAX_LRS (1 << 6)
--
cgit v1.2.1
From fc675e355e705a046df7b635d3f3330c0ad94569 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 8 Jul 2014 12:09:03 +0100
Subject: arm/arm64: KVM: vgic: kill VGIC_MAX_CPUS
We now have the information about the number of CPU interfaces in
the distributor itself. Let's get rid of VGIC_MAX_CPUS, and just
rely on KVM_MAX_VCPUS where we don't have the choice. Yet.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
include/kvm/arm_vgic.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index b2f9936df319..3b73d7845124 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -29,13 +29,12 @@
#define VGIC_NR_SGIS 16
#define VGIC_NR_PPIS 16
#define VGIC_NR_PRIVATE_IRQS (VGIC_NR_SGIS + VGIC_NR_PPIS)
-#define VGIC_MAX_CPUS KVM_MAX_VCPUS
#define VGIC_V2_MAX_LRS (1 << 6)
#define VGIC_V3_MAX_LRS 16
/* Sanity checks... */
-#if (VGIC_MAX_CPUS > 8)
+#if (KVM_MAX_VCPUS > 8)
#error Invalid number of CPU interfaces
#endif
--
cgit v1.2.1
From c3c918361adcceb816c92b21dd95d2b46fb96a8f Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 8 Jul 2014 12:09:04 +0100
Subject: arm/arm64: KVM: vgic: handle out-of-range MMIO accesses
Now that we can (almost) dynamically size the number of interrupts,
we're facing an interesting issue:
We have to evaluate at runtime whether or not an access hits a valid
register, based on the sizing of this particular instance of the
distributor. Furthermore, the GIC spec says that accessing a reserved
register is RAZ/WI.
For this, add a new field to our range structure, indicating the number
of bits a single interrupts uses. That allows us to find out whether or
not the access is in range.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
include/kvm/arm_vgic.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 3b73d7845124..2767f939f47c 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -32,6 +32,7 @@
#define VGIC_V2_MAX_LRS (1 << 6)
#define VGIC_V3_MAX_LRS 16
+#define VGIC_MAX_IRQS 1024
/* Sanity checks... */
#if (KVM_MAX_VCPUS > 8)
@@ -42,7 +43,7 @@
#error "VGIC_NR_IRQS must be a multiple of 32"
#endif
-#if (VGIC_NR_IRQS > 1024)
+#if (VGIC_NR_IRQS > VGIC_MAX_IRQS)
#error "VGIC_NR_IRQS must be <= 1024"
#endif
--
cgit v1.2.1
From 5fb66da64064d0cb8dcce4cc8bf4cb1b921b13a0 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 8 Jul 2014 12:09:05 +0100
Subject: arm/arm64: KVM: vgic: kill VGIC_NR_IRQS
Nuke VGIC_NR_IRQS entierly, now that the distributor instance
contains the number of IRQ allocated to this GIC.
Also add VGIC_NR_IRQS_LEGACY to preserve the current API.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
include/kvm/arm_vgic.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 2767f939f47c..aa20d4a7242f 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -25,7 +25,7 @@
#include <linux/spinlock.h>
#include <linux/types.h>
-#define VGIC_NR_IRQS 256
+#define VGIC_NR_IRQS_LEGACY 256
#define VGIC_NR_SGIS 16
#define VGIC_NR_PPIS 16
#define VGIC_NR_PRIVATE_IRQS (VGIC_NR_SGIS + VGIC_NR_PPIS)
@@ -39,11 +39,11 @@
#error Invalid number of CPU interfaces
#endif
-#if (VGIC_NR_IRQS & 31)
+#if (VGIC_NR_IRQS_LEGACY & 31)
#error "VGIC_NR_IRQS must be a multiple of 32"
#endif
-#if (VGIC_NR_IRQS > VGIC_MAX_IRQS)
+#if (VGIC_NR_IRQS_LEGACY > VGIC_MAX_IRQS)
#error "VGIC_NR_IRQS must be <= 1024"
#endif
--
cgit v1.2.1
From 4956f2bc1fdee4bc336532f3f34635a8534cedfd Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 8 Jul 2014 12:09:06 +0100
Subject: arm/arm64: KVM: vgic: delay vgic allocation until init time
It is now quite easy to delay the allocation of the vgic tables
until we actually require it to be up and running (when the first
vcpu is kicking around, or someones tries to access the GIC registers).
This allow us to allocate memory for the exact number of CPUs we
have. As nobody configures the number of interrupts just yet,
use a fallback to VGIC_NR_IRQS_LEGACY.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
include/kvm/arm_vgic.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index aa20d4a7242f..2f2aac8448a4 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -277,7 +277,6 @@ int kvm_vgic_hyp_init(void);
int kvm_vgic_init(struct kvm *kvm);
int kvm_vgic_create(struct kvm *kvm);
void kvm_vgic_destroy(struct kvm *kvm);
-int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu);
void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu);
void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu);
void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu);
--
cgit v1.2.1
From 84d7fce693884897c6196cc98228a2ad56ae2a9a Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 4 Sep 2014 14:30:22 +0200
Subject: netfilter: nf_tables: export rule-set generation ID
This patch exposes the ruleset generation ID in three ways:
1) The new command NFT_MSG_GETGEN that exposes the 32-bits ruleset
generation ID. This ID is incremented in every commit and it
should be large enough to avoid wraparound problems.
2) The less significant 16-bits of the generation ID are exposed through
the nfgenmsg->res_id header field. This allows us to quickly catch
if the ruleset has change between two consecutive list dumps from
different object lists (in this specific case I think the risk of
wraparound is unlikely).
3) Userspace subscribers may receive notifications of new rule-set
generation after every commit. This also provides an alternative
way to monitor the generation ID. If the events are lost, the
userspace process hits a overrun error, so it knows that it is
working with a stale ruleset anyway.
Patrick spotted that rule-set transformations in userspace may take
quite some time. In that case, it annotates the 32-bits generation ID
before fetching the rule-set, then:
1) it compares it to what we obtain after the transformation to
make sure it is not working with a stale rule-set and no wraparound
has ocurred.
2) it subscribes to ruleset notifications, so it can watch for new
generation ID.
This is complementary to the NLM_F_DUMP_INTR approach, which allows
us to detect an interference in the middle one single list dumping.
There is no way to explicitly check that an interference has occurred
between two list dumps from the kernel, since it doesn't know how
many lists the userspace client is actually going to dump.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_tables.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 66d66dd3ff79..b72ccfeaf865 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -51,6 +51,8 @@ enum nft_verdicts {
* @NFT_MSG_NEWSETELEM: create a new set element (enum nft_set_elem_attributes)
* @NFT_MSG_GETSETELEM: get a set element (enum nft_set_elem_attributes)
* @NFT_MSG_DELSETELEM: delete a set element (enum nft_set_elem_attributes)
+ * @NFT_MSG_NEWGEN: announce a new generation, only for events (enum nft_gen_attributes)
+ * @NFT_MSG_GETGEN: get the rule-set generation (enum nft_gen_attributes)
*/
enum nf_tables_msg_types {
NFT_MSG_NEWTABLE,
@@ -68,6 +70,8 @@ enum nf_tables_msg_types {
NFT_MSG_NEWSETELEM,
NFT_MSG_GETSETELEM,
NFT_MSG_DELSETELEM,
+ NFT_MSG_NEWGEN,
+ NFT_MSG_GETGEN,
NFT_MSG_MAX,
};
@@ -812,4 +816,16 @@ enum nft_masq_attributes {
};
#define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1)
+/**
+ * enum nft_gen_attributes - nf_tables ruleset generation attributes
+ *
+ * @NFTA_GEN_ID: Ruleset generation ID (NLA_U32)
+ */
+enum nft_gen_attributes {
+ NFTA_GEN_UNSPEC,
+ NFTA_GEN_ID,
+ __NFTA_GEN_MAX
+};
+#define NFTA_GEN_MAX (__NFTA_GEN_MAX - 1)
+
#endif /* _LINUX_NF_TABLES_H */
--
cgit v1.2.1
From f6be8af1c95de4a46e325e728900a70ceadb52cf Mon Sep 17 00:00:00 2001
From: Chuansheng Liu <chuansheng.liu@intel.com>
Date: Thu, 4 Sep 2014 15:17:53 +0800
Subject: sched: Add new API wake_up_if_idle() to wake up the idle cpu
Implementing one new API wake_up_if_idle(), which is used to
wake up the idle CPU.
Suggested-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: daniel.lezcano@linaro.org
Cc: rjw@rjwysocki.net
Cc: linux-pm@vger.kernel.org
Cc: changcheng.liu@intel.com
Cc: xiaoming.wang@intel.com
Cc: souvik.k.chakravarty@intel.com
Cc: chuansheng.liu@intel.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1409815075-4180-1-git-send-email-chuansheng.liu@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index dd9eb4807389..82ff3d6efb19 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1024,6 +1024,7 @@ struct sched_domain_topology_level {
extern struct sched_domain_topology_level *sched_domain_topology;
extern void set_sched_topology(struct sched_domain_topology_level *tl);
+extern void wake_up_if_idle(int cpu);
#ifdef CONFIG_SCHED_DEBUG
# define SD_INIT_NAME(type) .name = #type
--
cgit v1.2.1
From c6f4459fc3ba532e896cb678e29b45cb985f82bf Mon Sep 17 00:00:00 2001
From: Chuansheng Liu <chuansheng.liu@intel.com>
Date: Thu, 4 Sep 2014 15:17:54 +0800
Subject: smp: Add new wake_up_all_idle_cpus() function
Currently kick_all_cpus_sync() can break non-polling idle cpus
thru IPI interrupts.
But sometimes we need to break the polling idle cpus immediately
to reselect the suitable c-state, also for non-idle cpus, we need
to do nothing if we try to wake up them.
Here adding one new function wake_up_all_idle_cpus() to let all cpus
out of idle based on function wake_up_if_idle().
Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: daniel.lezcano@linaro.org
Cc: rjw@rjwysocki.net
Cc: linux-pm@vger.kernel.org
Cc: changcheng.liu@intel.com
Cc: xiaoming.wang@intel.com
Cc: souvik.k.chakravarty@intel.com
Cc: luto@amacapital.net
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@fb.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Roman Gushchin <klamm@yandex-team.ru>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1409815075-4180-2-git-send-email-chuansheng.liu@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/smp.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 34347f26be9b..93dff5fff524 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -100,6 +100,7 @@ int smp_call_function_any(const struct cpumask *mask,
smp_call_func_t func, void *info, int wait);
void kick_all_cpus_sync(void);
+void wake_up_all_idle_cpus(void);
/*
* Generic and arch helpers
@@ -148,6 +149,7 @@ smp_call_function_any(const struct cpumask *mask, smp_call_func_t func,
}
static inline void kick_all_cpus_sync(void) { }
+static inline void wake_up_all_idle_cpus(void) { }
#endif /* !SMP */
--
cgit v1.2.1
From ef8ac06359ddf95431cf6bb04ad2b36fff562328 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Fri, 12 Sep 2014 09:12:14 -0400
Subject: seqlock: Add irqsave variant of read_seqbegin_or_lock()
There are cases where read_seqbegin_or_lock() needs to block irqs,
because the seqlock in question nests inside a lock that is also
be taken from irq context.
Add read_seqbegin_or_lock_irqsave() and done_seqretry_irqrestore(), which
are almost identical to read_seqbegin_or_lock() and done_seqretry().
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: prarit@redhat.com
Cc: oleg@redhat.com
Cc: sgruszka@redhat.com
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Trond Myklebust <trond.myklebust@primarydata.com>
Link: http://lkml.kernel.org/r/1410527535-9814-2-git-send-email-riel@redhat.com
[ Improved the readability of the code a bit. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/seqlock.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index cc359636cfa3..f5df8f687b4d 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -456,4 +456,23 @@ read_sequnlock_excl_irqrestore(seqlock_t *sl, unsigned long flags)
spin_unlock_irqrestore(&sl->lock, flags);
}
+static inline unsigned long
+read_seqbegin_or_lock_irqsave(seqlock_t *lock, int *seq)
+{
+ unsigned long flags = 0;
+
+ if (!(*seq & 1)) /* Even */
+ *seq = read_seqbegin(lock);
+ else /* Odd */
+ read_seqlock_excl_irqsave(lock, flags);
+
+ return flags;
+}
+
+static inline void
+done_seqretry_irqrestore(seqlock_t *lock, int seq, unsigned long flags)
+{
+ if (seq & 1)
+ read_sequnlock_excl_irqrestore(lock, flags);
+}
#endif /* __LINUX_SEQLOCK_H */
--
cgit v1.2.1
From d4311ff1a8da48d609db9500f121c15580dfeeb7 Mon Sep 17 00:00:00 2001
From: Aaron Tomlin <atomlin@redhat.com>
Date: Fri, 12 Sep 2014 14:16:17 +0100
Subject: init/main.c: Give init_task a canary
Tasks get their end of stack set to STACK_END_MAGIC with the
aim to catch stack overruns. Currently this feature does not
apply to init_task. This patch removes this restriction.
Note that a similar patch was posted by Prarit Bhargava
some time ago but was never merged:
http://marc.info/?l=linux-kernel&m=127144305403241&w=2
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: aneesh.kumar@linux.vnet.ibm.com
Cc: dzickus@redhat.com
Cc: bmr@redhat.com
Cc: jcastillo@redhat.com
Cc: jgh@redhat.com
Cc: minchan@kernel.org
Cc: tglx@linutronix.de
Cc: hannes@cmpxchg.org
Cc: Alex Thorlton <athorlton@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Daeseok Youn <daeseok.youn@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Fabian Frederick <fabf@skynet.be>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/1410527779-8133-2-git-send-email-atomlin@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 82ff3d6efb19..118dca7d5a28 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -57,6 +57,7 @@ struct sched_param {
#include <linux/llist.h>
#include <linux/uidgid.h>
#include <linux/gfp.h>
+#include <linux/magic.h>
#include <asm/processor.h>
@@ -2638,6 +2639,7 @@ static inline unsigned long stack_not_used(struct task_struct *p)
return (unsigned long)n - (unsigned long)end_of_stack(p);
}
#endif
+extern void set_task_stack_end_magic(struct task_struct *tsk);
/* set thread flags in other task's structures
* - see asm/thread_info.h for TIF_xxxx flags available
--
cgit v1.2.1
From a70857e46dd13e87ae06bf0e64cb6a2d4f436265 Mon Sep 17 00:00:00 2001
From: Aaron Tomlin <atomlin@redhat.com>
Date: Fri, 12 Sep 2014 14:16:18 +0100
Subject: sched: Add helper for task stack page overrun checking
This facility is used in a few places so let's introduce
a helper function to improve code readability.
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: aneesh.kumar@linux.vnet.ibm.com
Cc: dzickus@redhat.com
Cc: bmr@redhat.com
Cc: jcastillo@redhat.com
Cc: oleg@redhat.com
Cc: riel@redhat.com
Cc: prarit@redhat.com
Cc: jgh@redhat.com
Cc: minchan@kernel.org
Cc: mpe@ellerman.id.au
Cc: tglx@linutronix.de
Cc: hannes@cmpxchg.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/1410527779-8133-3-git-send-email-atomlin@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 118dca7d5a28..18f52624eaa6 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2617,6 +2617,8 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
}
#endif
+#define task_stack_end_corrupted(task) \
+ (*(end_of_stack(task)) != STACK_END_MAGIC)
static inline int object_is_on_stack(void *obj)
{
--
cgit v1.2.1
From f29374b146dd02f5f99742aedaddd6ef3512fc9c Mon Sep 17 00:00:00 2001
From: Zefan Li <lizefan@huawei.com>
Date: Fri, 19 Sep 2014 16:29:31 +0800
Subject: cgroup: remove redundant check in cgroup_ino()
After we implemented default unified hierarchy, cgrp->kn can never
be NULL.
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/cgroup.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 77a1d37b742b..818a81fe7ccc 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -532,13 +532,10 @@ static inline bool cgroup_has_tasks(struct cgroup *cgrp)
return !list_empty(&cgrp->cset_links);
}
-/* returns ino associated with a cgroup, 0 indicates unmounted root */
+/* returns ino associated with a cgroup */
static inline ino_t cgroup_ino(struct cgroup *cgrp)
{
- if (cgrp->kn)
- return cgrp->kn->ino;
- else
- return 0;
+ return cgrp->kn->ino;
}
/* cft/css accessors for cftype->write() operation */
--
cgit v1.2.1
From a25eb52e81a40e986179a790fbb5a1f02f482b7a Mon Sep 17 00:00:00 2001
From: Zefan Li <lizefan@huawei.com>
Date: Fri, 19 Sep 2014 16:51:00 +0800
Subject: cgroup: remove CGRP_RELEASABLE flag
We call put_css_set() after setting CGRP_RELEASABLE flag in
cgroup_task_migrate(), but in other places we call it without setting
the flag. I don't see the necessity of this flag.
Moreover once the flag is set, it will never be cleared, unless writing
to the notify_on_release control file, so it can be quite confusing
if we look at the output of debug.releasable.
# mount -t cgroup -o debug xxx /cgroup
# mkdir /cgroup/child
# cat /cgroup/child/debug.releasable
0 <-- shows 0 though the cgroup is empty
# echo $$ > /cgroup/child/tasks
# cat /cgroup/child/debug.releasable
0
# echo $$ > /cgroup/tasks && echo $$ > /cgroup/child/tasks
# cat /proc/child/debug.releasable
1 <-- shows 1 though the cgroup is not empty
This patch removes the flag, and now debug.releasable shows if the
cgroup is empty or not.
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/cgroup.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 818a81fe7ccc..1d5196889048 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -161,11 +161,6 @@ static inline void css_put(struct cgroup_subsys_state *css)
/* bits in struct cgroup flags field */
enum {
- /*
- * Control Group has previously had a child cgroup or a task,
- * but no longer (only if CGRP_NOTIFY_ON_RELEASE is set)
- */
- CGRP_RELEASABLE,
/* Control Group requires release notifications to userspace */
CGRP_NOTIFY_ON_RELEASE,
/*
--
cgit v1.2.1
From d87f09abb31d2d52dda261b5128c39d3944afbab Mon Sep 17 00:00:00 2001
From: Inki Dae <inki.dae@samsung.com>
Date: Wed, 13 Aug 2014 16:38:23 +0900
Subject: drm/mipi-dsi: consider low power transmission
This patch adds a new flag, MIPI_DSI-MODE_LPM, to transmit data
in low power. With this flag, msg.flags has MIPI_DSI_MSG_USE_LPM
so that host driver of each SoC can clear or set relevant register
bit for low power transmission.
All host drivers shall support continuous clock behavior on the
Clock Lane, and optionally may support non-continuous clock behavior.
Both of them can transmit data in high speed of low power.
With each clock behavior, non-continuous or continuous clock mode,
host controller will transmit data in high speed by default so if
peripheral wants to receive data in low power, the peripheral driver
should set MIPI_DSI_MODE_LPM flag.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
---
include/drm/drm_mipi_dsi.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 2bb55b8b9031..8569dc5a1026 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -96,6 +96,8 @@ void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
#define MIPI_DSI_MODE_EOT_PACKET BIT(9)
/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
#define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10)
+/* transmit data in low power */
+#define MIPI_DSI_MODE_LPM BIT(11)
enum mipi_dsi_pixel_format {
MIPI_DSI_FMT_RGB888,
--
cgit v1.2.1
From d931589c01a20595d67192f075f9c84093c43c45 Mon Sep 17 00:00:00 2001
From: Inki Dae <inki.dae@samsung.com>
Date: Wed, 17 Sep 2014 22:48:45 +0900
Subject: drm/exynos: remove DRM_EXYNOS_GEM_MAP_OFFSET ioctl
This interface and relevant codes aren't used anymore.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
---
include/uapi/drm/exynos_drm.h | 18 ------------------
1 file changed, 18 deletions(-)
(limited to 'include')
diff --git a/include/uapi/drm/exynos_drm.h b/include/uapi/drm/exynos_drm.h
index d5844122ff32..67a751c74a77 100644
--- a/include/uapi/drm/exynos_drm.h
+++ b/include/uapi/drm/exynos_drm.h
@@ -32,20 +32,6 @@ struct drm_exynos_gem_create {
unsigned int handle;
};
-/**
- * A structure for getting buffer offset.
- *
- * @handle: a pointer to gem object created.
- * @pad: just padding to be 64-bit aligned.
- * @offset: relatived offset value of the memory region allocated.
- * - this value should be set by user.
- */
-struct drm_exynos_gem_map_off {
- unsigned int handle;
- unsigned int pad;
- uint64_t offset;
-};
-
/**
* A structure for mapping buffer.
*
@@ -316,7 +302,6 @@ struct drm_exynos_ipp_cmd_ctrl {
};
#define DRM_EXYNOS_GEM_CREATE 0x00
-#define DRM_EXYNOS_GEM_MAP_OFFSET 0x01
#define DRM_EXYNOS_GEM_MMAP 0x02
/* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
#define DRM_EXYNOS_GEM_GET 0x04
@@ -336,9 +321,6 @@ struct drm_exynos_ipp_cmd_ctrl {
#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
-#define DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
- DRM_EXYNOS_GEM_MAP_OFFSET, struct drm_exynos_gem_map_off)
-
#define DRM_IOCTL_EXYNOS_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \
DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
--
cgit v1.2.1
From 832316c704fe3d15ae6ca9a552ae80411d1bbbcd Mon Sep 17 00:00:00 2001
From: Inki Dae <inki.dae@samsung.com>
Date: Thu, 18 Sep 2014 14:19:01 +0900
Subject: drm/exynos: use drm generic mmap interface
This patch removes DRM_EXYNOS_GEM_MMAP ictrl feature specific
to Exynos drm and instead uses drm generic mmap.
We had used the interface specific to Exynos drm to do mmap directly,
not to use demand paging which maps each page with physical memory
at page fault handler. We don't need the specific mmap interface
because the drm generic mmap which uses vm offset manager stuff can
also do mmap directly.
This patch makes a userspace region to be mapped with whole physical
memory region allocated by userspace request when mmap system call is
requested.
Changelog v2:
- do not set VM_IO, VM_DONTEXPEND and VM_DONTDUMP. These flags were already
set by drm_gem_mmap
- do not include <linux/anon_inodes.h>, which isn't needed anymore.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
---
include/uapi/drm/exynos_drm.h | 22 ----------------------
1 file changed, 22 deletions(-)
(limited to 'include')
diff --git a/include/uapi/drm/exynos_drm.h b/include/uapi/drm/exynos_drm.h
index 67a751c74a77..5575ed1598bd 100644
--- a/include/uapi/drm/exynos_drm.h
+++ b/include/uapi/drm/exynos_drm.h
@@ -32,24 +32,6 @@ struct drm_exynos_gem_create {
unsigned int handle;
};
-/**
- * A structure for mapping buffer.
- *
- * @handle: a handle to gem object created.
- * @pad: just padding to be 64-bit aligned.
- * @size: memory size to be mapped.
- * @mapped: having user virtual address mmaped.
- * - this variable would be filled by exynos gem module
- * of kernel side with user virtual address which is allocated
- * by do_mmap().
- */
-struct drm_exynos_gem_mmap {
- unsigned int handle;
- unsigned int pad;
- uint64_t size;
- uint64_t mapped;
-};
-
/**
* A structure to gem information.
*
@@ -302,7 +284,6 @@ struct drm_exynos_ipp_cmd_ctrl {
};
#define DRM_EXYNOS_GEM_CREATE 0x00
-#define DRM_EXYNOS_GEM_MMAP 0x02
/* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
#define DRM_EXYNOS_GEM_GET 0x04
#define DRM_EXYNOS_VIDI_CONNECTION 0x07
@@ -321,9 +302,6 @@ struct drm_exynos_ipp_cmd_ctrl {
#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
-#define DRM_IOCTL_EXYNOS_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \
- DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
-
#define DRM_IOCTL_EXYNOS_GEM_GET DRM_IOWR(DRM_COMMAND_BASE + \
DRM_EXYNOS_GEM_GET, struct drm_exynos_gem_info)
--
cgit v1.2.1
From fd384412e199b62c3ddaabd18dce86d0e164c5b9 Mon Sep 17 00:00:00 2001
From: Andy Zhou <azhou@nicira.com>
Date: Tue, 16 Sep 2014 17:31:16 -0700
Subject: udp_tunnel: Seperate ipv6 functions into its own file.
Add ip6_udp_tunnel.c for ipv6 UDP tunnel functions to avoid ifdefs
in udp_tunnel.c
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/udp_tunnel.h | 28 ++++++++++++++++++++++++++--
1 file changed, 26 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index ffd69cbded35..0b9e017c9038 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -26,7 +26,31 @@ struct udp_port_cfg {
use_udp6_rx_checksums:1;
};
-int udp_sock_create(struct net *net, struct udp_port_cfg *cfg,
- struct socket **sockp);
+int udp_sock_create4(struct net *net, struct udp_port_cfg *cfg,
+ struct socket **sockp);
+
+#if IS_ENABLED(CONFIG_IPV6)
+int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
+ struct socket **sockp);
+#else
+static inline int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
+ struct socket **sockp)
+{
+ return 0;
+}
+#endif
+
+static inline int udp_sock_create(struct net *net,
+ struct udp_port_cfg *cfg,
+ struct socket **sockp)
+{
+ if (cfg->family == AF_INET)
+ return udp_sock_create4(net, cfg, sockp);
+
+ if (cfg->family == AF_INET6)
+ return udp_sock_create6(net, cfg, sockp);
+
+ return -EPFNOSUPPORT;
+}
#endif
--
cgit v1.2.1
From 6a93cc9052748c6355ec9d5b6c38b77f85f1cb0d Mon Sep 17 00:00:00 2001
From: Andy Zhou <azhou@nicira.com>
Date: Tue, 16 Sep 2014 17:31:17 -0700
Subject: udp-tunnel: Add a few more UDP tunnel APIs
Added a few more UDP tunnel APIs that can be shared by UDP based
tunnel protocol implementation. The main ones are highlighted below.
setup_udp_tunnel_sock() configures UDP listener socket for
receiving UDP encapsulated packets.
udp_tunnel_xmit_skb() and upd_tunnel6_xmit_skb() transmit skb
using UDP encapsulation.
udp_tunnel_sock_release() closes the UDP tunnel listener socket.
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/udp_tunnel.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 57 insertions(+)
(limited to 'include')
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index 0b9e017c9038..a47790bcaa38 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -1,6 +1,14 @@
#ifndef __NET_UDP_TUNNEL_H
#define __NET_UDP_TUNNEL_H
+#include <net/ip_tunnels.h>
+#include <net/udp.h>
+
+#if IS_ENABLED(CONFIG_IPV6)
+#include <net/ipv6.h>
+#include <net/addrconf.h>
+#endif
+
struct udp_port_cfg {
u8 family;
@@ -53,4 +61,53 @@ static inline int udp_sock_create(struct net *net,
return -EPFNOSUPPORT;
}
+typedef int (*udp_tunnel_encap_rcv_t)(struct sock *sk, struct sk_buff *skb);
+typedef void (*udp_tunnel_encap_destroy_t)(struct sock *sk);
+
+struct udp_tunnel_sock_cfg {
+ void *sk_user_data; /* user data used by encap_rcv call back */
+ /* Used for setting up udp_sock fields, see udp.h for details */
+ __u8 encap_type;
+ udp_tunnel_encap_rcv_t encap_rcv;
+ udp_tunnel_encap_destroy_t encap_destroy;
+};
+
+/* Setup the given (UDP) sock to receive UDP encapsulated packets */
+void setup_udp_tunnel_sock(struct net *net, struct socket *sock,
+ struct udp_tunnel_sock_cfg *sock_cfg);
+
+/* Transmit the skb using UDP encapsulation. */
+int udp_tunnel_xmit_skb(struct socket *sock, struct rtable *rt,
+ struct sk_buff *skb, __be32 src, __be32 dst,
+ __u8 tos, __u8 ttl, __be16 df, __be16 src_port,
+ __be16 dst_port, bool xnet);
+
+#if IS_ENABLED(CONFIG_IPV6)
+int udp_tunnel6_xmit_skb(struct socket *sock, struct dst_entry *dst,
+ struct sk_buff *skb, struct net_device *dev,
+ struct in6_addr *saddr, struct in6_addr *daddr,
+ __u8 prio, __u8 ttl, __be16 src_port,
+ __be16 dst_port);
+#endif
+
+void udp_tunnel_sock_release(struct socket *sock);
+
+static inline struct sk_buff *udp_tunnel_handle_offloads(struct sk_buff *skb,
+ bool udp_csum)
+{
+ int type = udp_csum ? SKB_GSO_UDP_TUNNEL_CSUM : SKB_GSO_UDP_TUNNEL;
+
+ return iptunnel_handle_offloads(skb, udp_csum, type);
+}
+
+static inline void udp_tunnel_encap_enable(struct socket *sock)
+{
+#if IS_ENABLED(CONFIG_IPV6)
+ if (sock->sk->sk_family == PF_INET6)
+ ipv6_stub->udpv6_encap_enable();
+ else
+#endif
+ udp_encap_enable();
+}
+
#endif
--
cgit v1.2.1
From 2e4e44107176d552f8bb1bb76053e850e3809841 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 17 Sep 2014 04:49:49 -0700
Subject: net: add alloc_skb_with_frags() helper
Extract from sock_alloc_send_pskb() code building skb with frags,
so that we can reuse this in other contexts.
Intent is to use it from tcp_send_rcvq(), tcp_collapse(), ...
We also want to replace some skb_linearize() calls to a more reliable
strategy in pathological cases where we need to reduce number of frags.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 756e3d057e84..f1bfa3781c75 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -769,6 +769,12 @@ static inline struct sk_buff *alloc_skb(unsigned int size,
return __alloc_skb(size, priority, 0, NUMA_NO_NODE);
}
+struct sk_buff *alloc_skb_with_frags(unsigned long header_len,
+ unsigned long data_len,
+ int max_page_order,
+ int *errcode,
+ gfp_t gfp_mask);
+
static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
gfp_t priority)
{
--
cgit v1.2.1
From bb7d93496f7ac203f7c3e9678000d1c83eb4e0ba Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 19 Sep 2014 13:07:50 -0700
Subject: net: phy: broadcom: add helper for PHY revision and patch level
The Broadcom BCM7xxx internal PHYs do not contain any useful revision
information in the low 4-bits of their MII_PHYSID2 (MII register 3)
which could allow us to properly identify them.
As a result, we need the actual hardware block integrating these PHYs:
GENET or the SF2 switch to tell us what revision they are built with. To
assist with that, add two helper macros for fetching the the PHY
revision and patch level from the struct phy_device::dev_flags.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 5bd35cc0d471..e4ee9c6679e8 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -41,6 +41,8 @@
#define PHY_BRCM_DIS_TXCRXC_NOENRGY 0x00008000
/* Broadcom BCM7xxx specific workarounds */
#define PHY_BRCM_100MBPS_WAR 0x00010000
+#define PHY_BRCM_7XXX_REV(x) (((x) >> 8) & 0xff)
+#define PHY_BRCM_7XXX_PATCH(x) ((x) & 0xff)
#define PHY_BCM_FLAGS_VALID 0x80000000
/* Broadcom BCM54XX register definitions, common to most Broadcom PHYs */
--
cgit v1.2.1
From 80780a54ecded1647e661ababde13554a149f7f3 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 19 Sep 2014 13:07:52 -0700
Subject: net: bcmgenet: remove PHY_BRCM_100MBPS_WAR
Now that we have removed the need for the PHY_BRCM_100MBPS_WAR flag, we
can remove it from the GENET driver and the broadcom shared header file.
The PHY driver checks the PHY supported bitmask instead.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index e4ee9c6679e8..3f626fe48c9a 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -40,7 +40,6 @@
#define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000
#define PHY_BRCM_DIS_TXCRXC_NOENRGY 0x00008000
/* Broadcom BCM7xxx specific workarounds */
-#define PHY_BRCM_100MBPS_WAR 0x00010000
#define PHY_BRCM_7XXX_REV(x) (((x) >> 8) & 0xff)
#define PHY_BRCM_7XXX_PATCH(x) ((x) & 0xff)
#define PHY_BCM_FLAGS_VALID 0x80000000
--
cgit v1.2.1
From 6819563e646a7f3692836daefd12cd86c697759f Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 19 Sep 2014 13:07:54 -0700
Subject: net: dsa: allow switch drivers to specify phy_device::dev_flags
Some switch drivers (e.g: bcm_sf2) may have to communicate specific
workarounds or flags towards the PHY device driver. Allow switches
driver to be delegated that task by introducing a get_phy_flags()
callback which will do just that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index c779e9bba1b3..e020b8a12b7d 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -181,6 +181,7 @@ struct dsa_switch_driver {
char *(*probe)(struct device *host_dev, int sw_addr);
int (*setup)(struct dsa_switch *ds);
int (*set_addr)(struct dsa_switch *ds, u8 *addr);
+ u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
/*
* Access to the switch's PHY registers.
--
cgit v1.2.1
From 23461551c00628c3f3fe9cf837bf53cf8f212b63 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Wed, 17 Sep 2014 12:25:56 -0700
Subject: fou: Support for foo-over-udp RX path
This patch provides a receive path for foo-over-udp. This allows
direct encapsulation of IP protocols over UDP. The bound destination
port is used to map to an IP protocol, and the XFRM framework
(udp_encap_rcv) is used to receive encapsulated packets. Upon
reception, the encapsulation header is logically removed (pointer
to transport header is advanced) and the packet is reinjected into
the receive path with the IP protocol indicated by the mapping.
Netlink is used to configure FOU ports. The configuration information
includes the port number to bind to and the IP protocol corresponding
to that port.
This should support GRE/UDP
(http://tools.ietf.org/html/draft-yong-tsvwg-gre-in-udp-encap-02),
as will as the other IP tunneling protocols (IPIP, SIT).
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/fou.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 include/uapi/linux/fou.h
(limited to 'include')
diff --git a/include/uapi/linux/fou.h b/include/uapi/linux/fou.h
new file mode 100644
index 000000000000..e03376de453d
--- /dev/null
+++ b/include/uapi/linux/fou.h
@@ -0,0 +1,32 @@
+/* fou.h - FOU Interface */
+
+#ifndef _UAPI_LINUX_FOU_H
+#define _UAPI_LINUX_FOU_H
+
+/* NETLINK_GENERIC related info
+ */
+#define FOU_GENL_NAME "fou"
+#define FOU_GENL_VERSION 0x1
+
+enum {
+ FOU_ATTR_UNSPEC,
+ FOU_ATTR_PORT, /* u16 */
+ FOU_ATTR_AF, /* u8 */
+ FOU_ATTR_IPPROTO, /* u8 */
+
+ __FOU_ATTR_MAX,
+};
+
+#define FOU_ATTR_MAX (__FOU_ATTR_MAX - 1)
+
+enum {
+ FOU_CMD_UNSPEC,
+ FOU_CMD_ADD,
+ FOU_CMD_DEL,
+
+ __FOU_CMD_MAX,
+};
+
+#define FOU_CMD_MAX (__FOU_CMD_MAX - 1)
+
+#endif /* _UAPI_LINUX_FOU_H */
--
cgit v1.2.1
From afe93325bc02a5b2dea0cd7d78225de692265e6e Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Wed, 17 Sep 2014 12:25:57 -0700
Subject: fou: Add GRO support
Implement fou_gro_receive and fou_gro_complete, and populate these
in the correponsing udp_offloads for the socket. Added ipproto to
udp_offloads and pass this from UDP to the fou GRO routine in proto
field of napi_gro_cb structure.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 28d4378615e5..4354b4307e37 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1874,7 +1874,7 @@ struct napi_gro_cb {
/* jiffies when first packet was created/queued */
unsigned long age;
- /* Used in ipv6_gro_receive() */
+ /* Used in ipv6_gro_receive() and foo-over-udp */
u16 proto;
/* Used in udp_gro_receive */
@@ -1925,6 +1925,7 @@ struct packet_offload {
struct udp_offload {
__be16 port;
+ u8 ipproto;
struct offload_callbacks callbacks;
};
--
cgit v1.2.1
From 56328486539ddd07cbaafec7a542a2c8a3043623 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Wed, 17 Sep 2014 12:25:58 -0700
Subject: net: Changes to ip_tunnel to support foo-over-udp encapsulation
This patch changes IP tunnel to support (secondary) encapsulation,
Foo-over-UDP. Changes include:
1) Adding tun_hlen as the tunnel header length, encap_hlen as the
encapsulation header length, and hlen becomes the grand total
of these.
2) Added common netlink define to support FOU encapsulation.
3) Routines to perform FOU encapsulation.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip_tunnels.h | 19 ++++++++++++++++++-
include/uapi/linux/if_tunnel.h | 12 ++++++++++++
2 files changed, 30 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 8dd8cab88b87..7f538ba6e267 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -10,6 +10,7 @@
#include <net/gro_cells.h>
#include <net/inet_ecn.h>
#include <net/ip.h>
+#include <net/netns/generic.h>
#include <net/rtnetlink.h>
#if IS_ENABLED(CONFIG_IPV6)
@@ -31,6 +32,13 @@ struct ip_tunnel_6rd_parm {
};
#endif
+struct ip_tunnel_encap {
+ __u16 type;
+ __u16 flags;
+ __be16 sport;
+ __be16 dport;
+};
+
struct ip_tunnel_prl_entry {
struct ip_tunnel_prl_entry __rcu *next;
__be32 addr;
@@ -56,13 +64,18 @@ struct ip_tunnel {
/* These four fields used only by GRE */
__u32 i_seqno; /* The last seen seqno */
__u32 o_seqno; /* The last output seqno */
- int hlen; /* Precalculated header length */
+ int tun_hlen; /* Precalculated header length */
int mlink;
struct ip_tunnel_dst __percpu *dst_cache;
struct ip_tunnel_parm parms;
+ int encap_hlen; /* Encap header length (FOU,GUE) */
+ struct ip_tunnel_encap encap;
+
+ int hlen; /* tun_hlen + encap_hlen */
+
/* for SIT */
#ifdef CONFIG_IPV6_SIT_6RD
struct ip_tunnel_6rd_parm ip6rd;
@@ -114,6 +127,8 @@ void ip_tunnel_delete_net(struct ip_tunnel_net *itn, struct rtnl_link_ops *ops);
void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
const struct iphdr *tnl_params, const u8 protocol);
int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd);
+int ip_tunnel_encap(struct sk_buff *skb, struct ip_tunnel *t,
+ u8 *protocol, struct flowi4 *fl4);
int ip_tunnel_change_mtu(struct net_device *dev, int new_mtu);
struct rtnl_link_stats64 *ip_tunnel_get_stats64(struct net_device *dev,
@@ -131,6 +146,8 @@ int ip_tunnel_newlink(struct net_device *dev, struct nlattr *tb[],
struct ip_tunnel_parm *p);
void ip_tunnel_setup(struct net_device *dev, int net_id);
void ip_tunnel_dst_reset_all(struct ip_tunnel *t);
+int ip_tunnel_encap_setup(struct ip_tunnel *t,
+ struct ip_tunnel_encap *ipencap);
/* Extract dsfield from inner protocol */
static inline u8 ip_tunnel_get_dsfield(const struct iphdr *iph,
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 3bce9e9d9f7c..9fedca7d8dae 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -53,10 +53,22 @@ enum {
IFLA_IPTUN_6RD_RELAY_PREFIX,
IFLA_IPTUN_6RD_PREFIXLEN,
IFLA_IPTUN_6RD_RELAY_PREFIXLEN,
+ IFLA_IPTUN_ENCAP_TYPE,
+ IFLA_IPTUN_ENCAP_FLAGS,
+ IFLA_IPTUN_ENCAP_SPORT,
+ IFLA_IPTUN_ENCAP_DPORT,
__IFLA_IPTUN_MAX,
};
#define IFLA_IPTUN_MAX (__IFLA_IPTUN_MAX - 1)
+enum tunnel_encap_types {
+ TUNNEL_ENCAP_NONE,
+ TUNNEL_ENCAP_FOU,
+};
+
+#define TUNNEL_ENCAP_FLAG_CSUM (1<<0)
+#define TUNNEL_ENCAP_FLAG_CSUM6 (1<<1)
+
/* SIT-mode i_flags */
#define SIT_ISATAP 0x0001
--
cgit v1.2.1
From 4565e9919cda747815547e2e5d7b78f15efbffdf Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Wed, 17 Sep 2014 12:26:01 -0700
Subject: gre: Setup and TX path for gre/UDP foo-over-udp encapsulation
Added netlink attrs to configure FOU encapsulation for GRE, netlink
handling of these flags, and properly adjust MTU for encapsulation.
ip_tunnel_encap is called from ip_tunnel_xmit to actually perform FOU
encapsulation.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_tunnel.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 9fedca7d8dae..7c832afdfa94 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -106,6 +106,10 @@ enum {
IFLA_GRE_ENCAP_LIMIT,
IFLA_GRE_FLOWINFO,
IFLA_GRE_FLAGS,
+ IFLA_GRE_ENCAP_TYPE,
+ IFLA_GRE_ENCAP_FLAGS,
+ IFLA_GRE_ENCAP_SPORT,
+ IFLA_GRE_ENCAP_DPORT,
__IFLA_GRE_MAX,
};
--
cgit v1.2.1
From 54003f119c26573d3bb86a5efc64f3e5fd43b8c6 Mon Sep 17 00:00:00 2001
From: Sabrina Dubroca <sd@queasysnail.net>
Date: Wed, 17 Sep 2014 23:23:12 +0200
Subject: net: fix sparse warnings in SNMP_UPD_PO_STATS(_BH)
ptr used to be a non __percpu pointer (result of a this_cpu_ptr
assignment, 7d720c3e4f0c4 ("percpu: add __percpu sparse annotations to
net")). Since d25398df59b56 ("net: avoid reloads in SNMP_UPD_PO_STATS"),
that's no longer the case, SNMP_UPD_PO_STATS uses this_cpu_add and ptr
is now __percpu.
Silence sparse warnings by preserving the original type and
annotation, and remove the out-of-date comment.
warning: incorrect type in initializer (different address spaces)
expected unsigned long long *ptr
got unsigned long long [noderef] <asn:3>*<noident>
warning: incorrect type in initializer (different address spaces)
expected void const [noderef] <asn:3>*__vpp_verify
got unsigned long long *<noident>
warning: incorrect type in initializer (different address spaces)
expected void const [noderef] <asn:3>*__vpp_verify
got unsigned long long *<noident>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/snmp.h | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/snmp.h b/include/net/snmp.h
index f1f27fdbb0d5..8fd2f498782e 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -146,19 +146,15 @@ struct linux_xfrm_mib {
#define SNMP_ADD_STATS(mib, field, addend) \
this_cpu_add(mib->mibs[field], addend)
-/*
- * Use "__typeof__(*mib) *ptr" instead of "__typeof__(mib) ptr"
- * to make @ptr a non-percpu pointer.
- */
#define SNMP_UPD_PO_STATS(mib, basefield, addend) \
do { \
- __typeof__(*mib->mibs) *ptr = mib->mibs; \
+ __typeof__((mib->mibs) + 0) ptr = mib->mibs; \
this_cpu_inc(ptr[basefield##PKTS]); \
this_cpu_add(ptr[basefield##OCTETS], addend); \
} while (0)
#define SNMP_UPD_PO_STATS_BH(mib, basefield, addend) \
do { \
- __typeof__(*mib->mibs) *ptr = mib->mibs; \
+ __typeof__((mib->mibs) + 0) ptr = mib->mibs; \
__this_cpu_inc(ptr[basefield##PKTS]); \
__this_cpu_add(ptr[basefield##OCTETS], addend); \
} while (0)
--
cgit v1.2.1
From 77507aa249aecd06fa25ad058b64481e46887a01 Mon Sep 17 00:00:00 2001
From: Ido Shamay <idos@mellanox.com>
Date: Thu, 18 Sep 2014 11:50:59 +0300
Subject: net/mlx4_core: Enable CQE/EQE stride support
This feature is intended for archs having cache line larger then 64B.
Since our CQE/EQEs are generally 64B in those systems, HW will write
twice to the same cache line consecutively, causing pipe locks due to
he hazard prevention mechanism. For elements in a cyclic buffer, writes
are consecutive, so entries smaller than a cache line should be
avoided, especially if they are written at a high rate.
Reduce consecutive writes to same cache line in CQs/EQs, by allowing the
driver to increase the distance between entries so that each will reside
in a different cache line. Until the introduction of this feature, there
were two types of CQE/EQE:
1. 32B stride and context in the [0-31] segment
2. 64B stride and context in the [32-63] segment
This feature introduces two additional types:
3. 128B stride and context in the [0-31] segment (128B cache line)
4. 256B stride and context in the [0-31] segment (256B cache line)
Modify the mlx4_core driver to query the device for the CQE/EQE cache
line stride capability and to enable that capability when the host
cache line size is larger than 64 bytes (supported cache lines are
128B and 256B).
The mlx4 IB driver and libmlx4 need not be aware of this change. The PF
context behaviour is changed to require this change in VF drivers
running on such archs.
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 1befd8df9cfc..7bcefe749a39 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -185,19 +185,24 @@ enum {
MLX4_DEV_CAP_FLAG2_DMFS_IPOIB = 1LL << 9,
MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS = 1LL << 10,
MLX4_DEV_CAP_FLAG2_MAD_DEMUX = 1LL << 11,
+ MLX4_DEV_CAP_FLAG2_CQE_STRIDE = 1LL << 12,
+ MLX4_DEV_CAP_FLAG2_EQE_STRIDE = 1LL << 13
};
enum {
MLX4_DEV_CAP_64B_EQE_ENABLED = 1LL << 0,
- MLX4_DEV_CAP_64B_CQE_ENABLED = 1LL << 1
+ MLX4_DEV_CAP_64B_CQE_ENABLED = 1LL << 1,
+ MLX4_DEV_CAP_CQE_STRIDE_ENABLED = 1LL << 2,
+ MLX4_DEV_CAP_EQE_STRIDE_ENABLED = 1LL << 3
};
enum {
- MLX4_USER_DEV_CAP_64B_CQE = 1L << 0
+ MLX4_USER_DEV_CAP_LARGE_CQE = 1L << 0
};
enum {
- MLX4_FUNC_CAP_64B_EQE_CQE = 1L << 0
+ MLX4_FUNC_CAP_64B_EQE_CQE = 1L << 0,
+ MLX4_FUNC_CAP_EQE_CQE_STRIDE = 1L << 1
};
--
cgit v1.2.1
From e625305b390790717cf2cccf61efb81299647028 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Sat, 20 Sep 2014 01:27:25 -0400
Subject: percpu-refcount: make percpu_ref based on longs instead of ints
percpu_ref is currently based on ints and the number of refs it can
cover is (1 << 31). This makes it impossible to use a percpu_ref to
count memory objects or pages on 64bit machines as it may overflow.
This forces those users to somehow aggregate the references before
contributing to the percpu_ref which is often cumbersome and sometimes
challenging to get the same level of performance as using the
percpu_ref directly.
While using ints for the percpu counters makes them pack tighter on
64bit machines, the possible gain from using ints instead of longs is
extremely small compared to the overall gain from per-cpu operation.
This patch makes percpu_ref based on longs so that it can be used to
directly count memory objects or pages.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kent Overstreet <kmo@daterainc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
---
include/linux/percpu-refcount.h | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index ee8325122dbd..5df6784bd9d2 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -55,7 +55,7 @@ struct percpu_ref;
typedef void (percpu_ref_func_t)(struct percpu_ref *);
struct percpu_ref {
- atomic_t count;
+ atomic_long_t count;
/*
* The low bit of the pointer indicates whether the ref is in percpu
* mode; if set, then get/put will manipulate the atomic_t.
@@ -97,7 +97,7 @@ static inline void percpu_ref_kill(struct percpu_ref *ref)
* branches as it can't assume that @ref->pcpu_count is not NULL.
*/
static inline bool __pcpu_ref_alive(struct percpu_ref *ref,
- unsigned __percpu **pcpu_countp)
+ unsigned long __percpu **pcpu_countp)
{
unsigned long pcpu_ptr = ACCESS_ONCE(ref->pcpu_count_ptr);
@@ -107,7 +107,7 @@ static inline bool __pcpu_ref_alive(struct percpu_ref *ref,
if (unlikely(pcpu_ptr & PCPU_REF_DEAD))
return false;
- *pcpu_countp = (unsigned __percpu *)pcpu_ptr;
+ *pcpu_countp = (unsigned long __percpu *)pcpu_ptr;
return true;
}
@@ -119,14 +119,14 @@ static inline bool __pcpu_ref_alive(struct percpu_ref *ref,
*/
static inline void percpu_ref_get(struct percpu_ref *ref)
{
- unsigned __percpu *pcpu_count;
+ unsigned long __percpu *pcpu_count;
rcu_read_lock_sched();
if (__pcpu_ref_alive(ref, &pcpu_count))
this_cpu_inc(*pcpu_count);
else
- atomic_inc(&ref->count);
+ atomic_long_inc(&ref->count);
rcu_read_unlock_sched();
}
@@ -142,7 +142,7 @@ static inline void percpu_ref_get(struct percpu_ref *ref)
*/
static inline bool percpu_ref_tryget(struct percpu_ref *ref)
{
- unsigned __percpu *pcpu_count;
+ unsigned long __percpu *pcpu_count;
int ret = false;
rcu_read_lock_sched();
@@ -151,7 +151,7 @@ static inline bool percpu_ref_tryget(struct percpu_ref *ref)
this_cpu_inc(*pcpu_count);
ret = true;
} else {
- ret = atomic_inc_not_zero(&ref->count);
+ ret = atomic_long_inc_not_zero(&ref->count);
}
rcu_read_unlock_sched();
@@ -175,7 +175,7 @@ static inline bool percpu_ref_tryget(struct percpu_ref *ref)
*/
static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
{
- unsigned __percpu *pcpu_count;
+ unsigned long __percpu *pcpu_count;
int ret = false;
rcu_read_lock_sched();
@@ -199,13 +199,13 @@ static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
*/
static inline void percpu_ref_put(struct percpu_ref *ref)
{
- unsigned __percpu *pcpu_count;
+ unsigned long __percpu *pcpu_count;
rcu_read_lock_sched();
if (__pcpu_ref_alive(ref, &pcpu_count))
this_cpu_dec(*pcpu_count);
- else if (unlikely(atomic_dec_and_test(&ref->count)))
+ else if (unlikely(atomic_long_dec_and_test(&ref->count)))
ref->release(ref);
rcu_read_unlock_sched();
@@ -219,11 +219,11 @@ static inline void percpu_ref_put(struct percpu_ref *ref)
*/
static inline bool percpu_ref_is_zero(struct percpu_ref *ref)
{
- unsigned __percpu *pcpu_count;
+ unsigned long __percpu *pcpu_count;
if (__pcpu_ref_alive(ref, &pcpu_count))
return false;
- return !atomic_read(&ref->count);
+ return !atomic_long_read(&ref->count);
}
#endif
--
cgit v1.2.1
From ead130335f35fb732921ee0ffde6639be35aa108 Mon Sep 17 00:00:00 2001
From: Prabhakar Lad <prabhakar.csengg@gmail.com>
Date: Sat, 6 Sep 2014 12:26:49 -0300
Subject: [media] media: videobuf2-core.h: add a helper to get status of
start_streaming()
this patch adds a helper to get the status if start_streaming()
was called successfully.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Pawel Osciak <pawel@osciak.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/videobuf2-core.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 5a10d8d695b4..b3c9973463ed 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -590,6 +590,15 @@ vb2_plane_size(struct vb2_buffer *vb, unsigned int plane_no)
return 0;
}
+/**
+ * vb2_start_streaming_called() - return streaming status of driver
+ * @q: videobuf queue
+ */
+static inline bool vb2_start_streaming_called(struct vb2_queue *q)
+{
+ return q->start_streaming_called;
+}
+
/*
* The following functions are not part of the vb2 core API, but are simple
* helper functions that you can use in your struct v4l2_file_operations,
--
cgit v1.2.1
From e3d6eb1c16ef174a8fbbdd40770f5cbace0710e4 Mon Sep 17 00:00:00 2001
From: Vincent Palatin <vpalatin@chromium.org>
Date: Wed, 3 Sep 2014 16:38:39 -0300
Subject: [media] v4l: Add camera pan/tilt speed controls
The V4L2_CID_PAN_SPEED and V4L2_CID_TILT_SPEED controls allow to move the
camera by setting its rotation speed around its axis.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Pawel Osciak <posciak@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/v4l2-controls.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 8b930210a4b9..661f119a51b8 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -746,6 +746,8 @@ enum v4l2_auto_focus_range {
V4L2_AUTO_FOCUS_RANGE_INFINITY = 3,
};
+#define V4L2_CID_PAN_SPEED (V4L2_CID_CAMERA_CLASS_BASE+32)
+#define V4L2_CID_TILT_SPEED (V4L2_CID_CAMERA_CLASS_BASE+33)
/* FM Modulator class control IDs */
--
cgit v1.2.1
From fcc0d3db28922f9ba21ea6c7b23ea10ffb5d3521 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Mon, 21 Jul 2014 17:06:33 -0300
Subject: [media] v4l: Add ARGB555X and XRGB555X pixel formats
The existing RGB555X pixel format is ill-defined in respect to its alpha
bit and its meaning is driver dependent. Create new standard ARGB555X
and XRGB555X variants with clearly defined meanings and make the
existing variant deprecated.
The new pixel formats 4CC values have been selected to match the DRM
4CCs for the same in-memory formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/videodev2.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 0b1ba5c6a8d2..1c2f84fd4d99 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -79,6 +79,7 @@
/* Four-character-code (FOURCC) */
#define v4l2_fourcc(a, b, c, d)\
((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
+#define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1 << 31))
/*
* E N U M S
@@ -307,6 +308,8 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5') /* 16 XRGB-1-5-5-5 */
#define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R', 'G', 'B', 'P') /* 16 RGB-5-6-5 */
#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16 RGB-5-5-5 BE */
+#define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16 ARGB-5-5-5 BE */
+#define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16 XRGB-5-5-5 BE */
#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16 RGB-5-6-5 BE */
#define V4L2_PIX_FMT_BGR666 v4l2_fourcc('B', 'G', 'R', 'H') /* 18 BGR-6-6-6 */
#define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B', 'G', 'R', '3') /* 24 BGR-8-8-8 */
--
cgit v1.2.1
From ca2a07e45d1d3d31a0a85d2f63d81a897c610040 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Thu, 31 Jul 2014 16:32:46 +0900
Subject: extcon: sm5502: Move sm5502.h header file to extcon directory
This patch move sm5502.h header file from 'include/linux/extcon' to
'driver/extcon' because sm5502.h is used for driver/extcon/extcon-sm5502.c.
and remove duplicate license description.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
include/linux/extcon/sm5502.h | 287 ------------------------------------------
1 file changed, 287 deletions(-)
delete mode 100644 include/linux/extcon/sm5502.h
(limited to 'include')
diff --git a/include/linux/extcon/sm5502.h b/include/linux/extcon/sm5502.h
deleted file mode 100644
index 030526bf8d79..000000000000
--- a/include/linux/extcon/sm5502.h
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * sm5502.h
- *
- * Copyright (c) 2014 Samsung Electronics Co., Ltd
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __LINUX_EXTCON_SM5502_H
-#define __LINUX_EXTCON_SM5502_H
-
-enum sm5502_types {
- TYPE_SM5502,
-};
-
-/* SM5502 registers */
-enum sm5502_reg {
- SM5502_REG_DEVICE_ID = 0x01,
- SM5502_REG_CONTROL,
- SM5502_REG_INT1,
- SM5502_REG_INT2,
- SM5502_REG_INTMASK1,
- SM5502_REG_INTMASK2,
- SM5502_REG_ADC,
- SM5502_REG_TIMING_SET1,
- SM5502_REG_TIMING_SET2,
- SM5502_REG_DEV_TYPE1,
- SM5502_REG_DEV_TYPE2,
- SM5502_REG_BUTTON1,
- SM5502_REG_BUTTON2,
- SM5502_REG_CAR_KIT_STATUS,
- SM5502_REG_RSVD1,
- SM5502_REG_RSVD2,
- SM5502_REG_RSVD3,
- SM5502_REG_RSVD4,
- SM5502_REG_MANUAL_SW1,
- SM5502_REG_MANUAL_SW2,
- SM5502_REG_DEV_TYPE3,
- SM5502_REG_RSVD5,
- SM5502_REG_RSVD6,
- SM5502_REG_RSVD7,
- SM5502_REG_RSVD8,
- SM5502_REG_RSVD9,
- SM5502_REG_RESET,
- SM5502_REG_RSVD10,
- SM5502_REG_RESERVED_ID1,
- SM5502_REG_RSVD11,
- SM5502_REG_RSVD12,
- SM5502_REG_RESERVED_ID2,
- SM5502_REG_RSVD13,
- SM5502_REG_OCP,
- SM5502_REG_RSVD14,
- SM5502_REG_RSVD15,
- SM5502_REG_RSVD16,
- SM5502_REG_RSVD17,
- SM5502_REG_RSVD18,
- SM5502_REG_RSVD19,
- SM5502_REG_RSVD20,
- SM5502_REG_RSVD21,
- SM5502_REG_RSVD22,
- SM5502_REG_RSVD23,
- SM5502_REG_RSVD24,
- SM5502_REG_RSVD25,
- SM5502_REG_RSVD26,
- SM5502_REG_RSVD27,
- SM5502_REG_RSVD28,
- SM5502_REG_RSVD29,
- SM5502_REG_RSVD30,
- SM5502_REG_RSVD31,
- SM5502_REG_RSVD32,
- SM5502_REG_RSVD33,
- SM5502_REG_RSVD34,
- SM5502_REG_RSVD35,
- SM5502_REG_RSVD36,
- SM5502_REG_RESERVED_ID3,
-
- SM5502_REG_END,
-};
-
-/* Define SM5502 MASK/SHIFT constant */
-#define SM5502_REG_DEVICE_ID_VENDOR_SHIFT 0
-#define SM5502_REG_DEVICE_ID_VERSION_SHIFT 3
-#define SM5502_REG_DEVICE_ID_VENDOR_MASK (0x3 << SM5502_REG_DEVICE_ID_VENDOR_SHIFT)
-#define SM5502_REG_DEVICE_ID_VERSION_MASK (0x1f << SM5502_REG_DEVICE_ID_VERSION_SHIFT)
-
-#define SM5502_REG_CONTROL_MASK_INT_SHIFT 0
-#define SM5502_REG_CONTROL_WAIT_SHIFT 1
-#define SM5502_REG_CONTROL_MANUAL_SW_SHIFT 2
-#define SM5502_REG_CONTROL_RAW_DATA_SHIFT 3
-#define SM5502_REG_CONTROL_SW_OPEN_SHIFT 4
-#define SM5502_REG_CONTROL_MASK_INT_MASK (0x1 << SM5502_REG_CONTROL_MASK_INT_SHIFT)
-#define SM5502_REG_CONTROL_WAIT_MASK (0x1 << SM5502_REG_CONTROL_WAIT_SHIFT)
-#define SM5502_REG_CONTROL_MANUAL_SW_MASK (0x1 << SM5502_REG_CONTROL_MANUAL_SW_SHIFT)
-#define SM5502_REG_CONTROL_RAW_DATA_MASK (0x1 << SM5502_REG_CONTROL_RAW_DATA_SHIFT)
-#define SM5502_REG_CONTROL_SW_OPEN_MASK (0x1 << SM5502_REG_CONTROL_SW_OPEN_SHIFT)
-
-#define SM5502_REG_INTM1_ATTACH_SHIFT 0
-#define SM5502_REG_INTM1_DETACH_SHIFT 1
-#define SM5502_REG_INTM1_KP_SHIFT 2
-#define SM5502_REG_INTM1_LKP_SHIFT 3
-#define SM5502_REG_INTM1_LKR_SHIFT 4
-#define SM5502_REG_INTM1_OVP_EVENT_SHIFT 5
-#define SM5502_REG_INTM1_OCP_EVENT_SHIFT 6
-#define SM5502_REG_INTM1_OVP_OCP_DIS_SHIFT 7
-#define SM5502_REG_INTM1_ATTACH_MASK (0x1 << SM5502_REG_INTM1_ATTACH_SHIFT)
-#define SM5502_REG_INTM1_DETACH_MASK (0x1 << SM5502_REG_INTM1_DETACH_SHIFT)
-#define SM5502_REG_INTM1_KP_MASK (0x1 << SM5502_REG_INTM1_KP_SHIFT)
-#define SM5502_REG_INTM1_LKP_MASK (0x1 << SM5502_REG_INTM1_LKP_SHIFT)
-#define SM5502_REG_INTM1_LKR_MASK (0x1 << SM5502_REG_INTM1_LKR_SHIFT)
-#define SM5502_REG_INTM1_OVP_EVENT_MASK (0x1 << SM5502_REG_INTM1_OVP_EVENT_SHIFT)
-#define SM5502_REG_INTM1_OCP_EVENT_MASK (0x1 << SM5502_REG_INTM1_OCP_EVENT_SHIFT)
-#define SM5502_REG_INTM1_OVP_OCP_DIS_MASK (0x1 << SM5502_REG_INTM1_OVP_OCP_DIS_SHIFT)
-
-#define SM5502_REG_INTM2_VBUS_DET_SHIFT 0
-#define SM5502_REG_INTM2_REV_ACCE_SHIFT 1
-#define SM5502_REG_INTM2_ADC_CHG_SHIFT 2
-#define SM5502_REG_INTM2_STUCK_KEY_SHIFT 3
-#define SM5502_REG_INTM2_STUCK_KEY_RCV_SHIFT 4
-#define SM5502_REG_INTM2_MHL_SHIFT 5
-#define SM5502_REG_INTM2_VBUS_DET_MASK (0x1 << SM5502_REG_INTM2_VBUS_DET_SHIFT)
-#define SM5502_REG_INTM2_REV_ACCE_MASK (0x1 << SM5502_REG_INTM2_REV_ACCE_SHIFT)
-#define SM5502_REG_INTM2_ADC_CHG_MASK (0x1 << SM5502_REG_INTM2_ADC_CHG_SHIFT)
-#define SM5502_REG_INTM2_STUCK_KEY_MASK (0x1 << SM5502_REG_INTM2_STUCK_KEY_SHIFT)
-#define SM5502_REG_INTM2_STUCK_KEY_RCV_MASK (0x1 << SM5502_REG_INTM2_STUCK_KEY_RCV_SHIFT)
-#define SM5502_REG_INTM2_MHL_MASK (0x1 << SM5502_REG_INTM2_MHL_SHIFT)
-
-#define SM5502_REG_ADC_SHIFT 0
-#define SM5502_REG_ADC_MASK (0x1f << SM5502_REG_ADC_SHIFT)
-
-#define SM5502_REG_TIMING_SET1_KEY_PRESS_SHIFT 4
-#define SM5502_REG_TIMING_SET1_KEY_PRESS_MASK (0xf << SM5502_REG_TIMING_SET1_KEY_PRESS_SHIFT)
-#define TIMING_KEY_PRESS_100MS 0x0
-#define TIMING_KEY_PRESS_200MS 0x1
-#define TIMING_KEY_PRESS_300MS 0x2
-#define TIMING_KEY_PRESS_400MS 0x3
-#define TIMING_KEY_PRESS_500MS 0x4
-#define TIMING_KEY_PRESS_600MS 0x5
-#define TIMING_KEY_PRESS_700MS 0x6
-#define TIMING_KEY_PRESS_800MS 0x7
-#define TIMING_KEY_PRESS_900MS 0x8
-#define TIMING_KEY_PRESS_1000MS 0x9
-#define SM5502_REG_TIMING_SET1_ADC_DET_SHIFT 0
-#define SM5502_REG_TIMING_SET1_ADC_DET_MASK (0xf << SM5502_REG_TIMING_SET1_ADC_DET_SHIFT)
-#define TIMING_ADC_DET_50MS 0x0
-#define TIMING_ADC_DET_100MS 0x1
-#define TIMING_ADC_DET_150MS 0x2
-#define TIMING_ADC_DET_200MS 0x3
-#define TIMING_ADC_DET_300MS 0x4
-#define TIMING_ADC_DET_400MS 0x5
-#define TIMING_ADC_DET_500MS 0x6
-#define TIMING_ADC_DET_600MS 0x7
-#define TIMING_ADC_DET_700MS 0x8
-#define TIMING_ADC_DET_800MS 0x9
-#define TIMING_ADC_DET_900MS 0xA
-#define TIMING_ADC_DET_1000MS 0xB
-
-#define SM5502_REG_TIMING_SET2_SW_WAIT_SHIFT 4
-#define SM5502_REG_TIMING_SET2_SW_WAIT_MASK (0xf << SM5502_REG_TIMING_SET2_SW_WAIT_SHIFT)
-#define TIMING_SW_WAIT_10MS 0x0
-#define TIMING_SW_WAIT_30MS 0x1
-#define TIMING_SW_WAIT_50MS 0x2
-#define TIMING_SW_WAIT_70MS 0x3
-#define TIMING_SW_WAIT_90MS 0x4
-#define TIMING_SW_WAIT_110MS 0x5
-#define TIMING_SW_WAIT_130MS 0x6
-#define TIMING_SW_WAIT_150MS 0x7
-#define TIMING_SW_WAIT_170MS 0x8
-#define TIMING_SW_WAIT_190MS 0x9
-#define TIMING_SW_WAIT_210MS 0xA
-#define SM5502_REG_TIMING_SET2_LONG_KEY_SHIFT 0
-#define SM5502_REG_TIMING_SET2_LONG_KEY_MASK (0xf << SM5502_REG_TIMING_SET2_LONG_KEY_SHIFT)
-#define TIMING_LONG_KEY_300MS 0x0
-#define TIMING_LONG_KEY_400MS 0x1
-#define TIMING_LONG_KEY_500MS 0x2
-#define TIMING_LONG_KEY_600MS 0x3
-#define TIMING_LONG_KEY_700MS 0x4
-#define TIMING_LONG_KEY_800MS 0x5
-#define TIMING_LONG_KEY_900MS 0x6
-#define TIMING_LONG_KEY_1000MS 0x7
-#define TIMING_LONG_KEY_1100MS 0x8
-#define TIMING_LONG_KEY_1200MS 0x9
-#define TIMING_LONG_KEY_1300MS 0xA
-#define TIMING_LONG_KEY_1400MS 0xB
-#define TIMING_LONG_KEY_1500MS 0xC
-
-#define SM5502_REG_DEV_TYPE1_AUDIO_TYPE1_SHIFT 0
-#define SM5502_REG_DEV_TYPE1_AUDIO_TYPE2_SHIFT 1
-#define SM5502_REG_DEV_TYPE1_USB_SDP_SHIFT 2
-#define SM5502_REG_DEV_TYPE1_UART_SHIFT 3
-#define SM5502_REG_DEV_TYPE1_CAR_KIT_CHARGER_SHIFT 4
-#define SM5502_REG_DEV_TYPE1_USB_CHG_SHIFT 5
-#define SM5502_REG_DEV_TYPE1_DEDICATED_CHG_SHIFT 6
-#define SM5502_REG_DEV_TYPE1_USB_OTG_SHIFT 7
-#define SM5502_REG_DEV_TYPE1_AUDIO_TYPE1_MASK (0x1 << SM5502_REG_DEV_TYPE1_AUDIO_TYPE1_SHIFT)
-#define SM5502_REG_DEV_TYPE1_AUDIO_TYPE1__MASK (0x1 << SM5502_REG_DEV_TYPE1_AUDIO_TYPE2_SHIFT)
-#define SM5502_REG_DEV_TYPE1_USB_SDP_MASK (0x1 << SM5502_REG_DEV_TYPE1_USB_SDP_SHIFT)
-#define SM5502_REG_DEV_TYPE1_UART_MASK (0x1 << SM5502_REG_DEV_TYPE1_UART_SHIFT)
-#define SM5502_REG_DEV_TYPE1_CAR_KIT_CHARGER_MASK (0x1 << SM5502_REG_DEV_TYPE1_CAR_KIT_CHARGER_SHIFT)
-#define SM5502_REG_DEV_TYPE1_USB_CHG_MASK (0x1 << SM5502_REG_DEV_TYPE1_USB_CHG_SHIFT)
-#define SM5502_REG_DEV_TYPE1_DEDICATED_CHG_MASK (0x1 << SM5502_REG_DEV_TYPE1_DEDICATED_CHG_SHIFT)
-#define SM5502_REG_DEV_TYPE1_USB_OTG_MASK (0x1 << SM5502_REG_DEV_TYPE1_USB_OTG_SHIFT)
-
-#define SM5502_REG_DEV_TYPE2_JIG_USB_ON_SHIFT 0
-#define SM5502_REG_DEV_TYPE2_JIG_USB_OFF_SHIFT 1
-#define SM5502_REG_DEV_TYPE2_JIG_UART_ON_SHIFT 2
-#define SM5502_REG_DEV_TYPE2_JIG_UART_OFF_SHIFT 3
-#define SM5502_REG_DEV_TYPE2_PPD_SHIFT 4
-#define SM5502_REG_DEV_TYPE2_TTY_SHIFT 5
-#define SM5502_REG_DEV_TYPE2_AV_CABLE_SHIFT 6
-#define SM5502_REG_DEV_TYPE2_JIG_USB_ON_MASK (0x1 << SM5502_REG_DEV_TYPE2_JIG_USB_ON_SHIFT)
-#define SM5502_REG_DEV_TYPE2_JIG_USB_OFF_MASK (0x1 << SM5502_REG_DEV_TYPE2_JIG_USB_OFF_SHIFT)
-#define SM5502_REG_DEV_TYPE2_JIG_UART_ON_MASK (0x1 << SM5502_REG_DEV_TYPE2_JIG_UART_ON_SHIFT)
-#define SM5502_REG_DEV_TYPE2_JIG_UART_OFF_MASK (0x1 << SM5502_REG_DEV_TYPE2_JIG_UART_OFF_SHIFT)
-#define SM5502_REG_DEV_TYPE2_PPD_MASK (0x1 << SM5502_REG_DEV_TYPE2_PPD_SHIFT)
-#define SM5502_REG_DEV_TYPE2_TTY_MASK (0x1 << SM5502_REG_DEV_TYPE2_TTY_SHIFT)
-#define SM5502_REG_DEV_TYPE2_AV_CABLE_MASK (0x1 << SM5502_REG_DEV_TYPE2_AV_CABLE_SHIFT)
-
-#define SM5502_REG_MANUAL_SW1_VBUSIN_SHIFT 0
-#define SM5502_REG_MANUAL_SW1_DP_SHIFT 2
-#define SM5502_REG_MANUAL_SW1_DM_SHIFT 5
-#define SM5502_REG_MANUAL_SW1_VBUSIN_MASK (0x3 << SM5502_REG_MANUAL_SW1_VBUSIN_SHIFT)
-#define SM5502_REG_MANUAL_SW1_DP_MASK (0x7 << SM5502_REG_MANUAL_SW1_DP_SHIFT)
-#define SM5502_REG_MANUAL_SW1_DM_MASK (0x7 << SM5502_REG_MANUAL_SW1_DM_SHIFT)
-#define VBUSIN_SWITCH_OPEN 0x0
-#define VBUSIN_SWITCH_VBUSOUT 0x1
-#define VBUSIN_SWITCH_MIC 0x2
-#define VBUSIN_SWITCH_VBUSOUT_WITH_USB 0x3
-#define DM_DP_CON_SWITCH_OPEN 0x0
-#define DM_DP_CON_SWITCH_USB 0x1
-#define DM_DP_CON_SWITCH_AUDIO 0x2
-#define DM_DP_CON_SWITCH_UART 0x3
-#define DM_DP_SWITCH_OPEN ((DM_DP_CON_SWITCH_OPEN <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \
- | (DM_DP_CON_SWITCH_OPEN <<SM5502_REG_MANUAL_SW1_DM_SHIFT))
-#define DM_DP_SWITCH_USB ((DM_DP_CON_SWITCH_USB <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \
- | (DM_DP_CON_SWITCH_USB <<SM5502_REG_MANUAL_SW1_DM_SHIFT))
-#define DM_DP_SWITCH_AUDIO ((DM_DP_CON_SWITCH_AUDIO <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \
- | (DM_DP_CON_SWITCH_AUDIO <<SM5502_REG_MANUAL_SW1_DM_SHIFT))
-#define DM_DP_SWITCH_UART ((DM_DP_CON_SWITCH_UART <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \
- | (DM_DP_CON_SWITCH_UART <<SM5502_REG_MANUAL_SW1_DM_SHIFT))
-
-/* SM5502 Interrupts */
-enum sm5502_irq {
- /* INT1 */
- SM5502_IRQ_INT1_ATTACH,
- SM5502_IRQ_INT1_DETACH,
- SM5502_IRQ_INT1_KP,
- SM5502_IRQ_INT1_LKP,
- SM5502_IRQ_INT1_LKR,
- SM5502_IRQ_INT1_OVP_EVENT,
- SM5502_IRQ_INT1_OCP_EVENT,
- SM5502_IRQ_INT1_OVP_OCP_DIS,
-
- /* INT2 */
- SM5502_IRQ_INT2_VBUS_DET,
- SM5502_IRQ_INT2_REV_ACCE,
- SM5502_IRQ_INT2_ADC_CHG,
- SM5502_IRQ_INT2_STUCK_KEY,
- SM5502_IRQ_INT2_STUCK_KEY_RCV,
- SM5502_IRQ_INT2_MHL,
-
- SM5502_IRQ_NUM,
-};
-
-#define SM5502_IRQ_INT1_ATTACH_MASK BIT(0)
-#define SM5502_IRQ_INT1_DETACH_MASK BIT(1)
-#define SM5502_IRQ_INT1_KP_MASK BIT(2)
-#define SM5502_IRQ_INT1_LKP_MASK BIT(3)
-#define SM5502_IRQ_INT1_LKR_MASK BIT(4)
-#define SM5502_IRQ_INT1_OVP_EVENT_MASK BIT(5)
-#define SM5502_IRQ_INT1_OCP_EVENT_MASK BIT(6)
-#define SM5502_IRQ_INT1_OVP_OCP_DIS_MASK BIT(7)
-#define SM5502_IRQ_INT2_VBUS_DET_MASK BIT(0)
-#define SM5502_IRQ_INT2_REV_ACCE_MASK BIT(1)
-#define SM5502_IRQ_INT2_ADC_CHG_MASK BIT(2)
-#define SM5502_IRQ_INT2_STUCK_KEY_MASK BIT(3)
-#define SM5502_IRQ_INT2_STUCK_KEY_RCV_MASK BIT(4)
-#define SM5502_IRQ_INT2_MHL_MASK BIT(5)
-
-#endif /* __LINUX_EXTCON_SM5502_H */
--
cgit v1.2.1
From 62364357c184db52d556f868e493963fac2aea78 Mon Sep 17 00:00:00 2001
From: George Cherian <george.cherian@ti.com>
Date: Tue, 9 Sep 2014 09:44:34 +0530
Subject: extcon: gpio: Fix code cleanup
This patch fixes following minor cleanup:
- Order the include files in alphabetical order.
- Fix description of state_off in extcon_gpio.h
- Add a descrition for check_on_resume in extcon_gpio.h
Signed-off-by: George Cherian <george.cherian@ti.com>
[Modify the name/description of patch to keep standary codiyg style by Chanwoo Choi]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
include/linux/extcon/extcon-gpio.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/extcon/extcon-gpio.h b/include/linux/extcon/extcon-gpio.h
index 8900fdf511c6..0b17ad43fbfc 100644
--- a/include/linux/extcon/extcon-gpio.h
+++ b/include/linux/extcon/extcon-gpio.h
@@ -34,8 +34,10 @@
* @irq_flags: IRQ Flags (e.g., IRQF_TRIGGER_LOW).
* @state_on: print_state is overriden with state_on if attached.
* If NULL, default method of extcon class is used.
- * @state_off: print_state is overriden with state_on if detached.
+ * @state_off: print_state is overriden with state_off if detached.
* If NUll, default method of extcon class is used.
+ * @check_on_resume: Boolean describing whether to check the state of gpio
+ * while resuming from sleep.
*
* Note that in order for state_on or state_off to be valid, both state_on
* and state_off should be not NULL. If at least one of them is NULL,
--
cgit v1.2.1
From bcc5fd49a0fda5abc22057f65b318788ccb5d2ad Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Date: Mon, 15 Sep 2014 18:15:53 +0200
Subject: clk: at91: add a driver for the h32mx clock
Newer SoCs have two different AHB interconnect. The AHB 32 bits Matrix
interconnect (h32mx) has a clock that can be setup at the half of the h64mx
clock (which is mck). The h32mx clock can not exceed 90 MHz.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
include/linux/clk/at91_pmc.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h
index de4268d4987a..c8e3b3d1eded 100644
--- a/include/linux/clk/at91_pmc.h
+++ b/include/linux/clk/at91_pmc.h
@@ -125,6 +125,7 @@ extern void __iomem *at91_pmc_base;
#define AT91_PMC_PLLADIV2 (1 << 12) /* PLLA divisor by 2 [some SAM9 only] */
#define AT91_PMC_PLLADIV2_OFF (0 << 12)
#define AT91_PMC_PLLADIV2_ON (1 << 12)
+#define AT91_PMC_H32MXDIV BIT(24)
#define AT91_PMC_USB 0x38 /* USB Clock Register [some SAM9 only] */
#define AT91_PMC_USBS (0x1 << 0) /* USB OHCI Input clock selection */
--
cgit v1.2.1
From 02d31c7de1e799c1fc171d86cfac92240885ce7e Mon Sep 17 00:00:00 2001
From: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Date: Wed, 16 Jul 2014 16:51:29 +0100
Subject: asm-generic: Add dma-contiguous.h
This header is used by arm64 and x86 individually.
Adding to asm-generic to avoid further code repetition while adding cma
to mips.
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: catalin.marinas@arm.com
Cc: will.deacon@arm.com
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: arnd@arndb.de
Cc: gregkh@linuxfoundation.org
Cc: m.szyprowski@samsung.com
Cc: x86@kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-arch@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7357/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
include/asm-generic/dma-contiguous.h | 9 +++++++++
1 file changed, 9 insertions(+)
create mode 100644 include/asm-generic/dma-contiguous.h
(limited to 'include')
diff --git a/include/asm-generic/dma-contiguous.h b/include/asm-generic/dma-contiguous.h
new file mode 100644
index 000000000000..292c571750f0
--- /dev/null
+++ b/include/asm-generic/dma-contiguous.h
@@ -0,0 +1,9 @@
+#ifndef _ASM_GENERIC_DMA_CONTIGUOUS_H
+#define _ASM_GENERIC_DMA_CONTIGUOUS_H
+
+#include <linux/types.h>
+
+static inline void
+dma_contiguous_early_fixup(phys_addr_t base, unsigned long size) { }
+
+#endif
--
cgit v1.2.1
From e3c3f19bc6185e0a24454e7b439e11635e6db960 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Tue, 2 Sep 2014 15:21:15 +0200
Subject: clk: samsung: exynos3250: Register DMC clk provider
Add clock provider for clocks in DMC domain including EPLL and BPLL. The
DMC clocks are necessary for Exynos3 devfreq driver.
The DMC clock domain uses different address space (0x105C0000) than
standard clock domain (0x10030000 - 0x10050000). The difference is huge
enough to add new DT node for the clock provider, rather than extending
existing address space.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
---
include/dt-bindings/clock/exynos3250.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos3250.h b/include/dt-bindings/clock/exynos3250.h
index b535e9da7de6..961b9c130ea9 100644
--- a/include/dt-bindings/clock/exynos3250.h
+++ b/include/dt-bindings/clock/exynos3250.h
@@ -255,4 +255,31 @@
*/
#define CLK_NR_CLKS 248
+/*
+ * CMU DMC
+ */
+
+#define CLK_FOUT_BPLL 1
+#define CLK_FOUT_EPLL 2
+
+/* Muxes */
+#define CLK_MOUT_MPLL_MIF 8
+#define CLK_MOUT_BPLL 9
+#define CLK_MOUT_DPHY 10
+#define CLK_MOUT_DMC_BUS 11
+#define CLK_MOUT_EPLL 12
+
+/* Dividers */
+#define CLK_DIV_DMC 16
+#define CLK_DIV_DPHY 17
+#define CLK_DIV_DMC_PRE 18
+#define CLK_DIV_DMCP 19
+#define CLK_DIV_DMCD 20
+
+/*
+ * Total number of clocks of main CMU.
+ * NOTE: Must be equal to last clock ID increased by one.
+ */
+#define NR_CLKS_DMC 21
+
#endif /* _DT_BINDINGS_CLOCK_SAMSUNG_EXYNOS3250_CLOCK_H */
--
cgit v1.2.1
From c14254300131f5dcb3fe18a1ff6eee163c2bc9b4 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Tue, 16 Sep 2014 13:54:31 +0200
Subject: clk: samsung: exynos4: add missing smmu_g2d clock and update comments
This patch adds missing smmu_g2d clock implementation and updates
comment about Exynos4 clocks from 278-282 range. Those clocks are
available on all Exynos4 SoC series, so the misleading comment has been
removed.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
---
include/dt-bindings/clock/exynos4.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos4.h b/include/dt-bindings/clock/exynos4.h
index 459bd2bd411f..fb9816354079 100644
--- a/include/dt-bindings/clock/exynos4.h
+++ b/include/dt-bindings/clock/exynos4.h
@@ -115,11 +115,11 @@
#define CLK_SMMU_MFCR 275
#define CLK_G3D 276
#define CLK_G2D 277
-#define CLK_ROTATOR 278 /* Exynos4210 only */
-#define CLK_MDMA 279 /* Exynos4210 only */
-#define CLK_SMMU_G2D 280 /* Exynos4210 only */
-#define CLK_SMMU_ROTATOR 281 /* Exynos4210 only */
-#define CLK_SMMU_MDMA 282 /* Exynos4210 only */
+#define CLK_ROTATOR 278
+#define CLK_MDMA 279
+#define CLK_SMMU_G2D 280
+#define CLK_SMMU_ROTATOR 281
+#define CLK_SMMU_MDMA 282
#define CLK_FIMD0 283
#define CLK_MIE0 284
#define CLK_MDNIE0 285 /* Exynos4412 only */
--
cgit v1.2.1
From 4676f0aab9dc4f9aa729d5a5b75d20f824d77742 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Tue, 1 Jul 2014 10:10:05 +0200
Subject: clk: samsung: exynos4: add support for MOUT_HDMI and MOUT_MIXER
clocks
This patch adds support for exporting mout_hdmi and mout_mixer to device
tree. Access to those clocks is required to correctly setup HDMI module
on Exynos 4210 and 4x12 SoCs.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Mike Turquette <mturquette@linaro.org>
CC: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
---
include/dt-bindings/clock/exynos4.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos4.h b/include/dt-bindings/clock/exynos4.h
index fb9816354079..34fe28c622d0 100644
--- a/include/dt-bindings/clock/exynos4.h
+++ b/include/dt-bindings/clock/exynos4.h
@@ -234,6 +234,8 @@
#define CLK_MOUT_G3D1 393
#define CLK_MOUT_G3D 394
#define CLK_ACLK400_MCUISP 395 /* Exynos4x12 only */
+#define CLK_MOUT_HDMI 396
+#define CLK_MOUT_MIXER 397
/* gate clocks - ppmu */
#define CLK_PPMULEFT 400
--
cgit v1.2.1
From c3099a5294f2c7266234e8ea35cbffc20a41aa9a Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 19 Sep 2014 20:27:34 +0200
Subject: PM / Domains: Add a detach callback to the struct dev_pm_domain
The intent of this callback is to simplify detachment of devices from
their PM domains. Further patches will show the benefit.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 72c0fe098a27..1022ba1eb4de 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -619,6 +619,7 @@ extern int dev_pm_put_subsys_data(struct device *dev);
*/
struct dev_pm_domain {
struct dev_pm_ops ops;
+ void (*detach)(struct device *dev, bool power_off);
};
/*
--
cgit v1.2.1
From aa42240ab2544a8bcb2efb400193826f57f3175e Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Fri, 19 Sep 2014 20:27:36 +0200
Subject: PM / Domains: Add generic OF-based PM domain look-up
This patch introduces generic code to perform PM domain look-up using
device tree and automatically bind devices to their PM domains.
Generic device tree bindings are introduced to specify PM domains of
devices in their device tree nodes.
Backwards compatibility with legacy Samsung-specific PM domain bindings
is provided, but for now the new code is not compiled when
CONFIG_ARCH_EXYNOS is selected to avoid collision with legacy code.
This will change as soon as the Exynos PM domain code gets converted to
use the generic framework in further patch.
This patch was originally submitted by Tomasz Figa when he was employed
by Samsung.
Link: http://marc.info/?l=linux-pm&m=139955349702152&w=2
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 52 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index aa03586c94a2..292079d8da6b 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -264,4 +264,56 @@ static inline void pm_genpd_syscore_poweroff(struct device *dev) {}
static inline void pm_genpd_syscore_poweron(struct device *dev) {}
#endif
+/* OF PM domain providers */
+struct of_device_id;
+
+struct genpd_onecell_data {
+ struct generic_pm_domain **domains;
+ unsigned int num_domains;
+};
+
+typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args,
+ void *data);
+
+#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
+int __of_genpd_add_provider(struct device_node *np, genpd_xlate_t xlate,
+ void *data);
+void of_genpd_del_provider(struct device_node *np);
+
+struct generic_pm_domain *__of_genpd_xlate_simple(
+ struct of_phandle_args *genpdspec,
+ void *data);
+struct generic_pm_domain *__of_genpd_xlate_onecell(
+ struct of_phandle_args *genpdspec,
+ void *data);
+
+int genpd_dev_pm_attach(struct device *dev);
+#else /* !CONFIG_PM_GENERIC_DOMAINS_OF */
+static inline int __of_genpd_add_provider(struct device_node *np,
+ genpd_xlate_t xlate, void *data)
+{
+ return 0;
+}
+static inline void of_genpd_del_provider(struct device_node *np) {}
+
+#define __of_genpd_xlate_simple NULL
+#define __of_genpd_xlate_onecell NULL
+
+static inline int genpd_dev_pm_attach(struct device *dev)
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_PM_GENERIC_DOMAINS_OF */
+
+static inline int of_genpd_add_provider_simple(struct device_node *np,
+ struct generic_pm_domain *genpd)
+{
+ return __of_genpd_add_provider(np, __of_genpd_xlate_simple, genpd);
+}
+static inline int of_genpd_add_provider_onecell(struct device_node *np,
+ struct genpd_onecell_data *data)
+{
+ return __of_genpd_add_provider(np, __of_genpd_xlate_onecell, data);
+}
+
#endif /* _LINUX_PM_DOMAIN_H */
--
cgit v1.2.1
From 46420dd73b800f87a19af13af5883855cf38cb08 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 19 Sep 2014 20:27:37 +0200
Subject: PM / Domains: Add APIs to attach/detach a PM domain for a device
To maintain scalability let's add common methods to attach and detach
a PM domain for a device, dev_pm_domain_attach|detach().
Typically dev_pm_domain_attach() shall be invoked from subsystem level
code at the probe phase to try to attach a device to its PM domain.
The reversed actions may be done a the remove phase and then by
invoking dev_pm_domain_detach().
When attachment succeeds, the attach function should assign its
corresponding detach function to a new ->detach() callback added in the
struct dev_pm_domain.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 1022ba1eb4de..c4cbf485a5d6 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -622,6 +622,17 @@ struct dev_pm_domain {
void (*detach)(struct device *dev, bool power_off);
};
+#ifdef CONFIG_PM
+extern int dev_pm_domain_attach(struct device *dev, bool power_on);
+extern void dev_pm_domain_detach(struct device *dev, bool power_off);
+#else
+static inline int dev_pm_domain_attach(struct device *dev, bool power_on)
+{
+ return -ENODEV;
+}
+static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {}
+#endif
+
/*
* The PM_EVENT_ messages are also used by drivers implementing the legacy
* suspend framework, based on the ->suspend() and ->resume() callbacks common
--
cgit v1.2.1
From 91d66cd27f5fd8a3bca4621a3505c9067925478d Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 19 Sep 2014 20:27:44 +0200
Subject: ACPI / PM: Convert acpi_dev_pm_detach() into a static function
The ->detach() callback for the PM domain has now been fully adopted,
thus there no users left of the acpi_dev_pm_detach() API. This allow us
to convert it into a static function.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/acpi.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 807cbc46d73e..b7926bb9b444 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -587,7 +587,6 @@ static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
int acpi_dev_pm_attach(struct device *dev, bool power_on);
-void acpi_dev_pm_detach(struct device *dev, bool power_off);
#else
static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
{
@@ -597,7 +596,6 @@ static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
{
return -ENODEV;
}
-static inline void acpi_dev_pm_detach(struct device *dev, bool power_off) {}
#endif
#ifdef CONFIG_ACPI
--
cgit v1.2.1
From bf57229745f849e500ba69ff91e35bc8160a7373 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 13 Sep 2014 16:40:08 -0700
Subject: blk-mq: remove REQ_END
Pass an explicit parameter for the last request in a batch to ->queue_rq
instead of using a request flag. Besides being a cleaner and non-stateful
interface this is also required for the next patch, which fixes the blk-mq
I/O submission code to not start a time too early.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 2 +-
include/linux/blk_types.h | 2 --
2 files changed, 1 insertion(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index a1e31f274fcd..9c4e306a9217 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -77,7 +77,7 @@ struct blk_mq_tag_set {
struct list_head tag_list;
};
-typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, struct request *);
+typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, struct request *, bool);
typedef struct blk_mq_hw_ctx *(map_queue_fn)(struct request_queue *, const int);
typedef int (init_hctx_fn)(struct blk_mq_hw_ctx *, void *, unsigned int);
typedef void (exit_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int);
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 66c2167f04a9..bb7d66460e7a 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -188,7 +188,6 @@ enum rq_flag_bits {
__REQ_MIXED_MERGE, /* merge of different types, fail separately */
__REQ_KERNEL, /* direct IO to kernel pages */
__REQ_PM, /* runtime pm request */
- __REQ_END, /* last of chain of requests */
__REQ_HASHED, /* on IO scheduler merge hash */
__REQ_MQ_INFLIGHT, /* track inflight for MQ */
__REQ_NR_BITS, /* stops here */
@@ -242,7 +241,6 @@ enum rq_flag_bits {
#define REQ_SECURE (1ULL << __REQ_SECURE)
#define REQ_KERNEL (1ULL << __REQ_KERNEL)
#define REQ_PM (1ULL << __REQ_PM)
-#define REQ_END (1ULL << __REQ_END)
#define REQ_HASHED (1ULL << __REQ_HASHED)
#define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT)
--
cgit v1.2.1
From e2490073cd7c3d6f6ef6e029a208edd4d38efac4 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 13 Sep 2014 16:40:09 -0700
Subject: blk-mq: call blk_mq_start_request from ->queue_rq
When we call blk_mq_start_request from the core blk-mq code before calling into
->queue_rq there is a racy window where the timeout handler can hit before we've
fully set up the driver specific part of the command.
Move the call to blk_mq_start_request into the driver so the driver can start
the request only once it is fully set up.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 9c4e306a9217..878b6f71da48 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -159,6 +159,7 @@ struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag);
struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *, const int ctx_index);
struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_tag_set *, unsigned int, int);
+void blk_mq_start_request(struct request *rq);
void blk_mq_end_io(struct request *rq, int error);
void __blk_mq_end_io(struct request *rq, int error);
--
cgit v1.2.1
From c8a446ad695ada43a885ec12b38411dbd190a11b Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 13 Sep 2014 16:40:10 -0700
Subject: blk-mq: rename blk_mq_end_io to blk_mq_end_request
Now that we've changed the driver API on the submission side use the
opportunity to fix up the name on the completion side to fit into the
general scheme.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 878b6f71da48..cb217c16990d 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -160,8 +160,8 @@ struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *, const int ctx_ind
struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_tag_set *, unsigned int, int);
void blk_mq_start_request(struct request *rq);
-void blk_mq_end_io(struct request *rq, int error);
-void __blk_mq_end_io(struct request *rq, int error);
+void blk_mq_end_request(struct request *rq, int error);
+void __blk_mq_end_request(struct request *rq, int error);
void blk_mq_requeue_request(struct request *rq);
void blk_mq_add_to_requeue_list(struct request *rq, bool at_head);
--
cgit v1.2.1
From 81481eb423c295c5480a3fab9bb961cf286c91e7 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 13 Sep 2014 16:40:11 -0700
Subject: blk-mq: fix and simplify tag iteration for the timeout handler
Don't do a kmalloc from timer to handle timeouts, chances are we could be
under heavy load or similar and thus just miss out on the timeouts.
Fortunately it is very easy to just iterate over all in use tags, and doing
this properly actually cleans up the blk_mq_busy_iter API as well, and
prepares us for the next patch by passing a reserved argument to the
iterator.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 6 +++++-
include/scsi/scsi_tcq.h | 2 +-
2 files changed, 6 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index cb217c16990d..0eb0f642be4b 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -86,6 +86,9 @@ typedef int (init_request_fn)(void *, struct request *, unsigned int,
typedef void (exit_request_fn)(void *, struct request *, unsigned int,
unsigned int);
+typedef void (busy_iter_fn)(struct blk_mq_hw_ctx *, struct request *, void *,
+ bool);
+
struct blk_mq_ops {
/*
* Queue request
@@ -174,7 +177,8 @@ void blk_mq_stop_hw_queues(struct request_queue *q);
void blk_mq_start_hw_queues(struct request_queue *q);
void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async);
void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs);
-void blk_mq_tag_busy_iter(struct blk_mq_tags *tags, void (*fn)(void *data, unsigned long *), void *data);
+void blk_mq_tag_busy_iter(struct blk_mq_hw_ctx *hctx, busy_iter_fn *fn,
+ void *priv);
/*
* Driver command data is immediately after the request. So subtract request
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index cdcc90b07ecb..e64583560701 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -68,7 +68,7 @@ static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth)
return;
if (!shost_use_blk_mq(sdev->host) &&
- blk_queue_tagged(sdev->request_queue))
+ !blk_queue_tagged(sdev->request_queue))
blk_queue_init_tags(sdev->request_queue, depth,
sdev->host->bqt);
--
cgit v1.2.1
From 0152fb6b57c4fae769ee75ea2ae670f4ff39fba9 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 13 Sep 2014 16:40:13 -0700
Subject: blk-mq: pass a reserved argument to the timeout handler
Allow blk-mq to pass an argument to the timeout handler to indicate
if we're timing out a reserved or regular command. For many drivers
those need to be handled different.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 0eb0f642be4b..325349559fb0 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -79,6 +79,7 @@ struct blk_mq_tag_set {
typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, struct request *, bool);
typedef struct blk_mq_hw_ctx *(map_queue_fn)(struct request_queue *, const int);
+typedef enum blk_eh_timer_return (timeout_fn)(struct request *, bool);
typedef int (init_hctx_fn)(struct blk_mq_hw_ctx *, void *, unsigned int);
typedef void (exit_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int);
typedef int (init_request_fn)(void *, struct request *, unsigned int,
@@ -103,7 +104,7 @@ struct blk_mq_ops {
/*
* Called on request timeout
*/
- rq_timed_out_fn *timeout;
+ timeout_fn *timeout;
softirq_done_fn *complete;
--
cgit v1.2.1
From 57a94e24bc927f642f7f48ca1bf5476aa5be269d Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Mon, 22 Sep 2014 20:11:50 +0200
Subject: mtd: nand: support ONFI timing mode retrieval for non-ONFI NANDs
Add an onfi_timing_mode_default field to nand_chip and nand_flash_dev in
order to support NAND timings definition for non-ONFI NAND.
NAND that support better timings mode than the default one have to define
a new entry in the nand_ids table.
The default timing mode should be deduced from timings description from
the datasheet and the ONFI specification
(www.onfi.org/~/media/ONFI/specs/onfi_3_1_spec.pdf, chapter 4.15
"Timing Parameters").
You should choose the closest mode that fit the timings requirements of
your NAND chip.
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/nand.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 8acb307b6fde..e4d451e4600b 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -587,6 +587,11 @@ struct nand_buffers {
* @ecc_step_ds: [INTERN] ECC step required by the @ecc_strength_ds,
* also from the datasheet. It is the recommended ECC step
* size, if known; if unknown, set to zero.
+ * @onfi_timing_mode_default: [INTERN] default ONFI timing mode. This field is
+ * either deduced from the datasheet if the NAND
+ * chip is not ONFI compliant or set to 0 if it is
+ * (an ONFI chip is always configured in mode 0
+ * after a NAND reset)
* @numchips: [INTERN] number of physical chips
* @chipsize: [INTERN] the size of one chip for multichip arrays
* @pagemask: [INTERN] page number mask = number of (pages / chip) - 1
@@ -671,6 +676,7 @@ struct nand_chip {
uint8_t bits_per_cell;
uint16_t ecc_strength_ds;
uint16_t ecc_step_ds;
+ int onfi_timing_mode_default;
int badblockpos;
int badblockbits;
@@ -773,6 +779,10 @@ struct nand_chip {
* @ecc_step_ds in nand_chip{}, also from the datasheet.
* For example, the "4bit ECC for each 512Byte" can be set with
* NAND_ECC_INFO(4, 512).
+ * @onfi_timing_mode_default: the default ONFI timing mode entered after a NAND
+ * reset. Should be deduced from timings described
+ * in the datasheet.
+ *
*/
struct nand_flash_dev {
char *name;
@@ -793,6 +803,7 @@ struct nand_flash_dev {
uint16_t strength_ds;
uint16_t step_ds;
} ecc;
+ int onfi_timing_mode_default;
};
/**
--
cgit v1.2.1
From 93af53b8633c4cb474585158512182b21219d743 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= <ezequiel@vanguardiasur.com.ar>
Date: Sat, 20 Sep 2014 17:53:12 +0100
Subject: nand: omap2: Remove horrible ifdefs to fix module probe
The current code abuses ifdefs to determine if the selected ECC scheme
is supported by the running kernel. As a result the code is hard to read,
and it also fails to load as a module.
This commit removes all the ifdefs and instead introduces a function
omap2_nand_ecc_check() to check if the ECC is supported by using
IS_ENABLED(CONFIG_xxx).
Since IS_ENABLED() is true when a config is =y or =m, this change fixes the
module so it can be loaded with no issues.
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/platform_data/elm.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/linux/platform_data/elm.h b/include/linux/platform_data/elm.h
index 780d1e97f620..b8686c00f15f 100644
--- a/include/linux/platform_data/elm.h
+++ b/include/linux/platform_data/elm.h
@@ -42,8 +42,24 @@ struct elm_errorvec {
int error_loc[16];
};
+#if IS_ENABLED(CONFIG_MTD_NAND_OMAP_BCH)
void elm_decode_bch_error_page(struct device *dev, u8 *ecc_calc,
struct elm_errorvec *err_vec);
int elm_config(struct device *dev, enum bch_ecc bch_type,
int ecc_steps, int ecc_step_size, int ecc_syndrome_size);
+#else
+static inline void
+elm_decode_bch_error_page(struct device *dev, u8 *ecc_calc,
+ struct elm_errorvec *err_vec)
+{
+}
+
+static inline int elm_config(struct device *dev, enum bch_ecc bch_type,
+ int ecc_steps, int ecc_step_size,
+ int ecc_syndrome_size)
+{
+ return -ENOSYS;
+}
+#endif /* CONFIG_MTD_NAND_ECC_BCH */
+
#endif /* __ELM_H */
--
cgit v1.2.1
From 2446254915a7d6f08bba9a755a34cc0402880472 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 18 Sep 2014 17:31:22 -0700
Subject: net: dsa: allow switch drivers to implement suspend/resume hooks
Add an abstraction layer to suspend/resume switch devices, doing the
following split:
- suspend/resume the slave network devices and their corresponding PHY
devices
- suspend/resume the switch hardware using switch driver callbacks
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index e020b8a12b7d..846dce4abaa5 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -210,6 +210,12 @@ struct dsa_switch_driver {
void (*get_ethtool_stats)(struct dsa_switch *ds,
int port, uint64_t *data);
int (*get_sset_count)(struct dsa_switch *ds);
+
+ /*
+ * Suspend and resume
+ */
+ int (*suspend)(struct dsa_switch *ds);
+ int (*resume)(struct dsa_switch *ds);
};
void register_switch_driver(struct dsa_switch_driver *type);
--
cgit v1.2.1
From 19e57c4e6dc6b82a3204b801f4c5f27c7d007559 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 18 Sep 2014 17:31:24 -0700
Subject: net: dsa: add {get, set}_wol callbacks to slave devices
Allow switch drivers to implement per-port Wake-on-LAN getter and
setters.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 846dce4abaa5..d8054fb4a4df 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -211,6 +211,14 @@ struct dsa_switch_driver {
int port, uint64_t *data);
int (*get_sset_count)(struct dsa_switch *ds);
+ /*
+ * ethtool Wake-on-LAN
+ */
+ void (*get_wol)(struct dsa_switch *ds, int port,
+ struct ethtool_wolinfo *w);
+ int (*set_wol)(struct dsa_switch *ds, int port,
+ struct ethtool_wolinfo *w);
+
/*
* Suspend and resume
*/
--
cgit v1.2.1
From 35f7aa5309c048bb70e58571942795fa9411ce6a Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Sat, 20 Sep 2014 14:03:55 +0200
Subject: ipv6: mld: answer mldv2 queries with mldv1 reports in mldv1 fallback
RFC2710 (MLDv1), section 3.7. says:
The length of a received MLD message is computed by taking the
IPv6 Payload Length value and subtracting the length of any IPv6
extension headers present between the IPv6 header and the MLD
message. If that length is greater than 24 octets, that indicates
that there are other fields present *beyond* the fields described
above, perhaps belonging to a *future backwards-compatible* version
of MLD. An implementation of the version of MLD specified in this
document *MUST NOT* send an MLD message longer than 24 octets and
MUST ignore anything past the first 24 octets of a received MLD
message.
RFC3810 (MLDv2), section 8.2.1. states for *listeners* regarding
presence of MLDv1 routers:
In order to be compatible with MLDv1 routers, MLDv2 hosts MUST
operate in version 1 compatibility mode. [...] When Host
Compatibility Mode is MLDv2, a host acts using the MLDv2 protocol
on that interface. When Host Compatibility Mode is MLDv1, a host
acts in MLDv1 compatibility mode, using *only* the MLDv1 protocol,
on that interface. [...]
While section 8.3.1. specifies *router* behaviour regarding presence
of MLDv1 routers:
MLDv2 routers may be placed on a network where there is at least
one MLDv1 router. The following requirements apply:
If an MLDv1 router is present on the link, the Querier MUST use
the *lowest* version of MLD present on the network. This must be
administratively assured. Routers that desire to be compatible
with MLDv1 MUST have a configuration option to act in MLDv1 mode;
if an MLDv1 router is present on the link, the system administrator
must explicitly configure all MLDv2 routers to act in MLDv1 mode.
When in MLDv1 mode, the Querier MUST send periodic General Queries
truncated at the Multicast Address field (i.e., 24 bytes long),
and SHOULD also warn about receiving an MLDv2 Query (such warnings
must be rate-limited). The Querier MUST also fill in the Maximum
Response Delay in the Maximum Response Code field, i.e., the
exponential algorithm described in section 5.1.3. is not used. [...]
That means that we should not get queries from different versions of
MLD. When there's a MLDv1 router present, MLDv2 enforces truncation
and MRC == MRD (both fields are overlapping within the 24 octet range).
Section 8.3.2. specifies behaviour in the presence of MLDv1 multicast
address *listeners*:
MLDv2 routers may be placed on a network where there are hosts
that have not yet been upgraded to MLDv2. In order to be compatible
with MLDv1 hosts, MLDv2 routers MUST operate in version 1 compatibility
mode. MLDv2 routers keep a compatibility mode per multicast address
record. The compatibility mode of a multicast address is determined
from the Multicast Address Compatibility Mode variable, which can be
in one of the two following states: MLDv1 or MLDv2.
The Multicast Address Compatibility Mode of a multicast address
record is set to MLDv1 whenever an MLDv1 Multicast Listener Report is
*received* for that multicast address. At the same time, the Older
Version Host Present timer for the multicast address is set to Older
Version Host Present Timeout seconds. The timer is re-set whenever a
new MLDv1 Report is received for that multicast address. If the Older
Version Host Present timer expires, the router switches back to
Multicast Address Compatibility Mode of MLDv2 for that multicast
address. [...]
That means, what can happen is the following scenario, that hosts can
act in MLDv1 compatibility mode when they previously have received an
MLDv1 query (or, simply operate in MLDv1 mode-only); and at the same
time, an MLDv2 router could start up and transmits MLDv2 startup query
messages while being unaware of the current operational mode.
Given RFC2710, section 3.7 we would need to answer to that with an MLDv1
listener report, so that the router according to RFC3810, section 8.3.2.
would receive that and internally switch to MLDv1 compatibility as well.
Right now, I believe since the initial implementation of MLDv2, Linux
hosts would just silently drop such MLDv2 queries instead of replying
with an MLDv1 listener report, which would prevent a MLDv2 router going
into fallback mode (until it receives other MLDv1 queries).
Since the mapping of MRC to MRD in exactly such cases can make use of
the exponential algorithm from 5.1.3, we cannot [strictly speaking] be
aware in MLDv1 of the encoding in MRC, it seems also not mentioned by
the RFC. Since encodings are the same up to 32767, assume in such a
situation this value as a hard upper limit we would clamp. We have asked
one of the RFC authors on that regard, and he mentioned that there seem
not to be any implementations that make use of that exponential algorithm
on startup messages. In any case, this patch fixes this MLD
interoperability issue.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/mld.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mld.h b/include/net/mld.h
index faa1d161bf24..01d751303498 100644
--- a/include/net/mld.h
+++ b/include/net/mld.h
@@ -88,12 +88,15 @@ struct mld2_query {
#define MLDV2_QQIC_EXP(value) (((value) >> 4) & 0x07)
#define MLDV2_QQIC_MAN(value) ((value) & 0x0f)
+#define MLD_EXP_MIN_LIMIT 32768UL
+#define MLDV1_MRD_MAX_COMPAT (MLD_EXP_MIN_LIMIT - 1)
+
static inline unsigned long mldv2_mrc(const struct mld2_query *mlh2)
{
/* RFC3810, 5.1.3. Maximum Response Code */
unsigned long ret, mc_mrc = ntohs(mlh2->mld2q_mrc);
- if (mc_mrc < 32768) {
+ if (mc_mrc < MLD_EXP_MIN_LIMIT) {
ret = mc_mrc;
} else {
unsigned long mc_man, mc_exp;
--
cgit v1.2.1
From fcdd1cf4dd63aecf86c987d7f4ec7187be5c2fbc Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 22 Sep 2014 13:19:44 -0700
Subject: tcp: avoid possible arithmetic overflows
icsk_rto is a 32bit field, and icsk_backoff can reach 15 by default,
or more if some sysctl (eg tcp_retries2) are changed.
Better use 64bit to perform icsk_rto << icsk_backoff operations
As Joe Perches suggested, add a helper for this.
Yuchung spotted the tcp_v4_err() case.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/inet_connection_sock.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 5fbe6568c3cf..848e85cb5c61 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -242,6 +242,15 @@ static inline void inet_csk_reset_xmit_timer(struct sock *sk, const int what,
#endif
}
+static inline unsigned long
+inet_csk_rto_backoff(const struct inet_connection_sock *icsk,
+ unsigned long max_when)
+{
+ u64 when = (u64)icsk->icsk_rto << icsk->icsk_backoff;
+
+ return (unsigned long)min_t(u64, when, max_when);
+}
+
struct sock *inet_csk_accept(struct sock *sk, int flags, int *err);
struct request_sock *inet_csk_search_req(const struct sock *sk,
--
cgit v1.2.1
From bee3f304435a9c8c70b135083e23516872a17c98 Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Mon, 22 Sep 2014 14:46:13 -0600
Subject: PCI: Remove unused pci_find_upstream_pcie_bridge()
pci_find_upstream_pcie_bridge() is unused, so remove it.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/pci.h | 11 -----------
1 file changed, 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 92c131efec1c..bf5a47c0cb42 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1828,17 +1828,6 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
int (*fn)(struct pci_dev *pdev,
u16 alias, void *data), void *data);
-/**
- * pci_find_upstream_pcie_bridge - find upstream PCIe-to-PCI bridge of a device
- * @pdev: the PCI device
- *
- * if the device is PCIE, return NULL
- * if the device isn't connected to a PCIe bridge (that is its parent is a
- * legacy PCI bridge and the bridge is directly connected to bus 0), return its
- * parent
- */
-struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);
-
/* helper functions for operation of device flag */
static inline void pci_set_dev_assigned(struct pci_dev *pdev)
{
--
cgit v1.2.1
From 5d8f4c9fdd67404c9f94683836e49ec8bded2287 Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Wed, 17 Sep 2014 10:41:13 -0600
Subject: PCI: Remove unused pci_get_dma_source()
pci_get_dma_source() is unused, so remove it. We now have
dma_alias_devfn() to describe this.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/pci.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/pci.h b/include/linux/pci.h
index bf5a47c0cb42..d68d8e33c196 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1557,16 +1557,11 @@ enum pci_fixup_pass {
#ifdef CONFIG_PCI_QUIRKS
void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
-struct pci_dev *pci_get_dma_source(struct pci_dev *dev);
int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags);
void pci_dev_specific_enable_acs(struct pci_dev *dev);
#else
static inline void pci_fixup_device(enum pci_fixup_pass pass,
struct pci_dev *dev) { }
-static inline struct pci_dev *pci_get_dma_source(struct pci_dev *dev)
-{
- return pci_dev_get(dev);
-}
static inline int pci_dev_specific_acs_enabled(struct pci_dev *dev,
u16 acs_flags)
{
--
cgit v1.2.1
From 48d11e067fc90ec9fc9c8f7ab982e5a83bf1887b Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Mon, 22 Sep 2014 12:26:10 -0700
Subject: mmc: Consolidate emmc tuning blocks
The same tuning block exists in the dw_mmc h.c and sdhci-msm.c
files. Move these into mmc.c so that they can be shared across
drivers.
Reported-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/mmc.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 78753bc90a87..1cd00b3a75b9 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -53,6 +53,11 @@
#define MMC_SEND_TUNING_BLOCK 19 /* adtc R1 */
#define MMC_SEND_TUNING_BLOCK_HS200 21 /* adtc R1 */
+#define MMC_TUNING_BLK_PATTERN_4BIT_SIZE 64
+#define MMC_TUNING_BLK_PATTERN_8BIT_SIZE 128
+extern const u8 tuning_blk_pattern_4bit[MMC_TUNING_BLK_PATTERN_4BIT_SIZE];
+extern const u8 tuning_blk_pattern_8bit[MMC_TUNING_BLK_PATTERN_8BIT_SIZE];
+
/* class 3 */
#define MMC_WRITE_DAT_UNTIL_STOP 20 /* adtc [31:0] data addr R1 */
--
cgit v1.2.1
From 854072dd0f73b8e4238c88bdf0dd2a8db0239c1c Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Thu, 28 Aug 2014 06:44:09 +0200
Subject: xen/events: support threaded irqs for interdomain event channels
Export bind_interdomain_evtchn_to_irq() so drivers can use threaded
interrupt handlers with:
irq = bind_interdomain_evtchn_to_irq(remote_dom, remote_port);
if (irq < 0)
/* error */
ret = request_threaded_irq(...);
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
include/xen/events.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/xen/events.h b/include/xen/events.h
index 8bee7a75e850..5321cd9636e6 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -28,6 +28,8 @@ int bind_ipi_to_irqhandler(enum ipi_vector ipi,
unsigned long irqflags,
const char *devname,
void *dev_id);
+int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
+ unsigned int remote_port);
int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
unsigned int remote_port,
irq_handler_t handler,
--
cgit v1.2.1
From e124c9a2c3c4c51555fe6f0bc214fe1b5cce3666 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Thu, 28 Aug 2014 06:44:10 +0200
Subject: xen: Add Xen pvSCSI protocol description
Add the definition of pvSCSI protocol used between the pvSCSI frontend
in a XEN domU and the pvSCSI backend in a XEN driver domain (usually
Dom0).
This header was originally provided by Fujitsu for Xen based on Linux
2.6.18. Changes are:
- Added comments.
- Adapt to Linux style guide.
- Add support for larger SG-lists by putting them in an own granted
page.
- Remove stale definitions.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
include/xen/interface/io/vscsiif.h | 229 +++++++++++++++++++++++++++++++++++++
1 file changed, 229 insertions(+)
create mode 100644 include/xen/interface/io/vscsiif.h
(limited to 'include')
diff --git a/include/xen/interface/io/vscsiif.h b/include/xen/interface/io/vscsiif.h
new file mode 100644
index 000000000000..d07d7aca8d1c
--- /dev/null
+++ b/include/xen/interface/io/vscsiif.h
@@ -0,0 +1,229 @@
+/******************************************************************************
+ * vscsiif.h
+ *
+ * Based on the blkif.h code.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright(c) FUJITSU Limited 2008.
+ */
+
+#ifndef __XEN__PUBLIC_IO_SCSI_H__
+#define __XEN__PUBLIC_IO_SCSI_H__
+
+#include "ring.h"
+#include "../grant_table.h"
+
+/*
+ * Feature and Parameter Negotiation
+ * =================================
+ * The two halves of a Xen pvSCSI driver utilize nodes within the XenStore to
+ * communicate capabilities and to negotiate operating parameters. This
+ * section enumerates these nodes which reside in the respective front and
+ * backend portions of the XenStore, following the XenBus convention.
+ *
+ * Any specified default value is in effect if the corresponding XenBus node
+ * is not present in the XenStore.
+ *
+ * XenStore nodes in sections marked "PRIVATE" are solely for use by the
+ * driver side whose XenBus tree contains them.
+ *
+ *****************************************************************************
+ * Backend XenBus Nodes
+ *****************************************************************************
+ *
+ *------------------ Backend Device Identification (PRIVATE) ------------------
+ *
+ * p-devname
+ * Values: string
+ *
+ * A free string used to identify the physical device (e.g. a disk name).
+ *
+ * p-dev
+ * Values: string
+ *
+ * A string specifying the backend device: either a 4-tuple "h:c:t:l"
+ * (host, controller, target, lun, all integers), or a WWN (e.g.
+ * "naa.60014054ac780582").
+ *
+ * v-dev
+ * Values: string
+ *
+ * A string specifying the frontend device in form of a 4-tuple "h:c:t:l"
+ * (host, controller, target, lun, all integers).
+ *
+ *--------------------------------- Features ---------------------------------
+ *
+ * feature-sg-grant
+ * Values: unsigned [VSCSIIF_SG_TABLESIZE...65535]
+ * Default Value: 0
+ *
+ * Specifies the maximum number of scatter/gather elements in grant pages
+ * supported. If not set, the backend supports up to VSCSIIF_SG_TABLESIZE
+ * SG elements specified directly in the request.
+ *
+ *****************************************************************************
+ * Frontend XenBus Nodes
+ *****************************************************************************
+ *
+ *----------------------- Request Transport Parameters -----------------------
+ *
+ * event-channel
+ * Values: unsigned
+ *
+ * The identifier of the Xen event channel used to signal activity
+ * in the ring buffer.
+ *
+ * ring-ref
+ * Values: unsigned
+ *
+ * The Xen grant reference granting permission for the backend to map
+ * the sole page in a single page sized ring buffer.
+ *
+ * protocol
+ * Values: string (XEN_IO_PROTO_ABI_*)
+ * Default Value: XEN_IO_PROTO_ABI_NATIVE
+ *
+ * The machine ABI rules governing the format of all ring request and
+ * response structures.
+ */
+
+/* Requests from the frontend to the backend */
+
+/*
+ * Request a SCSI operation specified via a CDB in vscsiif_request.cmnd.
+ * The target is specified via channel, id and lun.
+ *
+ * The operation to be performed is specified via a CDB in cmnd[], the length
+ * of the CDB is in cmd_len. sc_data_direction specifies the direction of data
+ * (to the device, from the device, or none at all).
+ *
+ * If data is to be transferred to or from the device the buffer(s) in the
+ * guest memory is/are specified via one or multiple scsiif_request_segment
+ * descriptors each specifying a memory page via a grant_ref_t, a offset into
+ * the page and the length of the area in that page. All scsiif_request_segment
+ * areas concatenated form the resulting data buffer used by the operation.
+ * If the number of scsiif_request_segment areas is not too large (less than
+ * or equal VSCSIIF_SG_TABLESIZE) the areas can be specified directly in the
+ * seg[] array and the number of valid scsiif_request_segment elements is to be
+ * set in nr_segments.
+ *
+ * If "feature-sg-grant" in the Xenstore is set it is possible to specify more
+ * than VSCSIIF_SG_TABLESIZE scsiif_request_segment elements via indirection.
+ * The maximum number of allowed scsiif_request_segment elements is the value
+ * of the "feature-sg-grant" entry from Xenstore. When using indirection the
+ * seg[] array doesn't contain specifications of the data buffers, but
+ * references to scsiif_request_segment arrays, which in turn reference the
+ * data buffers. While nr_segments holds the number of populated seg[] entries
+ * (plus the set VSCSIIF_SG_GRANT bit), the number of scsiif_request_segment
+ * elements referencing the target data buffers is calculated from the lengths
+ * of the seg[] elements (the sum of all valid seg[].length divided by the
+ * size of one scsiif_request_segment structure).
+ */
+#define VSCSIIF_ACT_SCSI_CDB 1
+
+/*
+ * Request abort of a running operation for the specified target given by
+ * channel, id, lun and the operation's rqid in ref_rqid.
+ */
+#define VSCSIIF_ACT_SCSI_ABORT 2
+
+/*
+ * Request a device reset of the specified target (channel and id).
+ */
+#define VSCSIIF_ACT_SCSI_RESET 3
+
+/*
+ * Preset scatter/gather elements for a following request. Deprecated.
+ * Keeping the define only to avoid usage of the value "4" for other actions.
+ */
+#define VSCSIIF_ACT_SCSI_SG_PRESET 4
+
+/*
+ * Maximum scatter/gather segments per request.
+ *
+ * Considering balance between allocating at least 16 "vscsiif_request"
+ * structures on one page (4096 bytes) and the number of scatter/gather
+ * elements needed, we decided to use 26 as a magic number.
+ *
+ * If "feature-sg-grant" is set, more scatter/gather elements can be specified
+ * by placing them in one or more (up to VSCSIIF_SG_TABLESIZE) granted pages.
+ * In this case the vscsiif_request seg elements don't contain references to
+ * the user data, but to the SG elements referencing the user data.
+ */
+#define VSCSIIF_SG_TABLESIZE 26
+
+/*
+ * based on Linux kernel 2.6.18, still valid
+ * Changing these values requires support of multiple protocols via the rings
+ * as "old clients" will blindly use these values and the resulting structure
+ * sizes.
+ */
+#define VSCSIIF_MAX_COMMAND_SIZE 16
+#define VSCSIIF_SENSE_BUFFERSIZE 96
+
+struct scsiif_request_segment {
+ grant_ref_t gref;
+ uint16_t offset;
+ uint16_t length;
+};
+
+#define VSCSIIF_SG_PER_PAGE (PAGE_SIZE / sizeof(struct scsiif_request_segment))
+
+/* Size of one request is 252 bytes */
+struct vscsiif_request {
+ uint16_t rqid; /* private guest value, echoed in resp */
+ uint8_t act; /* command between backend and frontend */
+ uint8_t cmd_len; /* valid CDB bytes */
+
+ uint8_t cmnd[VSCSIIF_MAX_COMMAND_SIZE]; /* the CDB */
+ uint16_t timeout_per_command; /* deprecated */
+ uint16_t channel, id, lun; /* (virtual) device specification */
+ uint16_t ref_rqid; /* command abort reference */
+ uint8_t sc_data_direction; /* for DMA_TO_DEVICE(1)
+ DMA_FROM_DEVICE(2)
+ DMA_NONE(3) requests */
+ uint8_t nr_segments; /* Number of pieces of scatter-gather */
+/*
+ * flag in nr_segments: SG elements via grant page
+ *
+ * If VSCSIIF_SG_GRANT is set, the low 7 bits of nr_segments specify the number
+ * of grant pages containing SG elements. Usable if "feature-sg-grant" set.
+ */
+#define VSCSIIF_SG_GRANT 0x80
+
+ struct scsiif_request_segment seg[VSCSIIF_SG_TABLESIZE];
+ uint32_t reserved[3];
+};
+
+/* Size of one response is 252 bytes */
+struct vscsiif_response {
+ uint16_t rqid; /* identifies request */
+ uint8_t padding;
+ uint8_t sense_len;
+ uint8_t sense_buffer[VSCSIIF_SENSE_BUFFERSIZE];
+ int32_t rslt;
+ uint32_t residual_len; /* request bufflen -
+ return the value from physical device */
+ uint32_t reserved[36];
+};
+
+DEFINE_RING_TYPES(vscsiif, struct vscsiif_request, struct vscsiif_response);
+
+#endif /*__XEN__PUBLIC_IO_SCSI_H__*/
--
cgit v1.2.1
From d7bead1b8890c3e47a24db270fdb840ea728d8f0 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 22 Sep 2014 09:52:18 -0700
Subject: libata: change ata_<foo>_printk routines to return void
The return value is not used by callers of these functions nor
by uses of all macros so change the functions to return void.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/libata.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 92abb497ab14..bd5fefeaf548 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1404,14 +1404,14 @@ static inline int sata_srst_pmp(struct ata_link *link)
* printk helpers
*/
__printf(3, 4)
-int ata_port_printk(const struct ata_port *ap, const char *level,
- const char *fmt, ...);
+void ata_port_printk(const struct ata_port *ap, const char *level,
+ const char *fmt, ...);
__printf(3, 4)
-int ata_link_printk(const struct ata_link *link, const char *level,
- const char *fmt, ...);
+void ata_link_printk(const struct ata_link *link, const char *level,
+ const char *fmt, ...);
__printf(3, 4)
-int ata_dev_printk(const struct ata_device *dev, const char *level,
- const char *fmt, ...);
+void ata_dev_printk(const struct ata_device *dev, const char *level,
+ const char *fmt, ...);
#define ata_port_err(ap, fmt, ...) \
ata_port_printk(ap, KERN_ERR, fmt, ##__VA_ARGS__)
--
cgit v1.2.1
From d9ff958bb34aabdce08d11b0db24123c093d87cd Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 20 Aug 2014 19:20:53 +0200
Subject: dmaengine: Mark the struct dma_slave_config direction field
deprecated
The direction passed to the device_prep_slave_sg, device_prep_dma_cyclic
or device_prep_interleaved_dma (through struct dma_interleaved_template)
should be used instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/dmaengine.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 1f9e642c66ad..3d291f59acd8 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -307,7 +307,9 @@ enum dma_slave_buswidth {
* struct dma_slave_config - dma slave channel runtime config
* @direction: whether the data shall go in or out on this slave
* channel, right now. DMA_MEM_TO_DEV and DMA_DEV_TO_MEM are
- * legal values.
+ * legal values. DEPRECATED, drivers should use the direction argument
+ * to the device_prep_slave_sg and device_prep_dma_cyclic functions or
+ * the dir field in the dma_interleaved_template structure.
* @src_addr: this is the physical address where DMA slave data
* should be read (RX), if the source is memory this argument is
* ignored.
--
cgit v1.2.1
From e1db1706c86ee455f25eeaeadeda827e1e02310f Mon Sep 17 00:00:00 2001
From: abdoulaye berthe <berthe.ab@gmail.com>
Date: Sat, 5 Jul 2014 18:28:50 +0200
Subject: gpio: gpiolib: set gpiochip_remove retval to void
This avoids handling gpiochip remove error in device
remove handler.
Signed-off-by: Abdoulaye Berthe <berthe.ab@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/gpio/driver.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index a2de58fffd19..560bf7fa614f 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -141,7 +141,7 @@ extern const char *gpiochip_is_requested(struct gpio_chip *chip,
/* add/remove chips */
extern int gpiochip_add(struct gpio_chip *chip);
-extern int gpiochip_remove(struct gpio_chip *chip);
+extern void gpiochip_remove(struct gpio_chip *chip);
extern struct gpio_chip *gpiochip_find(void *data,
int (*match)(struct gpio_chip *chip, void *data));
--
cgit v1.2.1
From 3d2613c4289ff22de3aa24d2d0a29e33937f023a Mon Sep 17 00:00:00 2001
From: Weike Chen <alvin.chen@intel.com>
Date: Wed, 17 Sep 2014 09:18:39 -0700
Subject: GPIO: gpio-dwapb: Enable platform driver binding to MFD driver
The Synopsys DesignWare APB GPIO driver only supports open firmware devices.
But, like Intel Quark X1000 SOC, which has a single PCI function exporting
a GPIO and an I2C controller, it is a Multifunction device. This patch is
to enable the current Synopsys DesignWare APB GPIO driver to support the
Multifunction device which exports the designware GPIO controller.
Reviewed-by: Hock Leong Kweh <hock.leong.kweh@intel.com>
Signed-off-by: Weike Chen <alvin.chen@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/platform_data/gpio-dwapb.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 include/linux/platform_data/gpio-dwapb.h
(limited to 'include')
diff --git a/include/linux/platform_data/gpio-dwapb.h b/include/linux/platform_data/gpio-dwapb.h
new file mode 100644
index 000000000000..28702c849af1
--- /dev/null
+++ b/include/linux/platform_data/gpio-dwapb.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef GPIO_DW_APB_H
+#define GPIO_DW_APB_H
+
+struct dwapb_port_property {
+ struct device_node *node;
+ const char *name;
+ unsigned int idx;
+ unsigned int ngpio;
+ unsigned int gpio_base;
+ unsigned int irq;
+ bool irq_shared;
+};
+
+struct dwapb_platform_data {
+ struct dwapb_port_property *properties;
+ unsigned int nports;
+};
+
+#endif
--
cgit v1.2.1
From 7ca267faba8ad097f57cb71c32ae1865de83241a Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Mon, 15 Sep 2014 17:09:44 +0300
Subject: gpio: Increase ARCH_NR_GPIOs to 512
Some newer Intel SoCs, like Braswell already have more than 256 GPIOs
available so the default limit is exceeded. Instead of adding more
architecture specific gpio.h files with custom ARCH_NR_GPIOs we increase
the gpiolib default limit to be twice the current.
Current generic ARCH_NR_GPIOS limit is 256 which starts to be too small
for newer Intel SoCs like Braswell. In order to support GPIO controllers
on these SoCs we increase ARCH_NR_GPIOS to be 512 which should be
sufficient for now.
The kernel size increases a bit with this change. Below is an example of
x86_64 kernel image.
ARCH_NR_GPIOS=256
text data bss dec hex filename
11476173 1971328 1265664 14713165 e0814d vmlinux
ARCH_NR_GPIOS=512
text data bss dec hex filename
11476173 1971328 1269760 14717261 e0914d vmlinux
So the BSS size and this the kernel image size increases by 4k.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/asm-generic/gpio.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index c1d4105e1c1d..383ade1a211b 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -27,7 +27,7 @@
*/
#ifndef ARCH_NR_GPIOS
-#define ARCH_NR_GPIOS 256
+#define ARCH_NR_GPIOS 512
#endif
/*
--
cgit v1.2.1
From 4cdf507d54525842dfd9f6313fdafba039084046 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 19 Sep 2014 07:38:40 -0700
Subject: icmp: add a global rate limitation
Current ICMP rate limiting uses inetpeer cache, which is an RBL tree
protected by a lock, meaning that hosts can be stuck hard if all cpus
want to check ICMP limits.
When say a DNS or NTP server process is restarted, inetpeer tree grows
quick and machine comes to its knees.
iptables can not help because the bottleneck happens before ICMP
messages are even cooked and sent.
This patch adds a new global limitation, using a token bucket filter,
controlled by two new sysctl :
icmp_msgs_per_sec - INTEGER
Limit maximal number of ICMP packets sent per second from this host.
Only messages whose type matches icmp_ratemask are
controlled by this limit.
Default: 1000
icmp_msgs_burst - INTEGER
icmp_msgs_per_sec controls number of ICMP packets sent per second,
while icmp_msgs_burst controls the burst size of these packets.
Default: 50
Note that if we really want to send millions of ICMP messages per
second, we might extend idea and infra added in commit 04ca6973f7c1a
("ip: make IP identifiers less predictable") :
add a token bucket in the ip_idents hash and no longer rely on inetpeer.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/ip.h b/include/net/ip.h
index 14bfc8e1bcf9..fcd9068fb8c3 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -548,6 +548,10 @@ void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport,
u32 info);
+bool icmp_global_allow(void);
+extern int sysctl_icmp_msgs_per_sec;
+extern int sysctl_icmp_msgs_burst;
+
#ifdef CONFIG_PROC_FS
int ip_misc_proc_init(void);
#endif
--
cgit v1.2.1
From 55cf9cb63f0e5439f208d78ed944de9a8df65011 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Mon, 15 Sep 2014 18:01:10 +0800
Subject: f2fs: support large sector size
Block size in f2fs is 4096 bytes, so theoretically, f2fs can support 4096 bytes
sector device at maximum. But now f2fs only support 512 bytes size sector, so
block device such as zRAM which uses page cache as its block storage space will
not be mounted successfully as mismatch between sector size of zRAM and sector
size of f2fs supported.
In this patch we support large sector size in f2fs, so block device with sector
size of 512/1024/2048/4096 bytes can be supported in f2fs.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
include/linux/f2fs_fs.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 9ca1ff3d4662..860313a33a43 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -15,8 +15,9 @@
#include <linux/types.h>
#define F2FS_SUPER_OFFSET 1024 /* byte-size offset */
-#define F2FS_LOG_SECTOR_SIZE 9 /* 9 bits for 512 byte */
-#define F2FS_LOG_SECTORS_PER_BLOCK 3 /* 4KB: F2FS_BLKSIZE */
+#define F2FS_MIN_LOG_SECTOR_SIZE 9 /* 9 bits for 512 bytes */
+#define F2FS_MAX_LOG_SECTOR_SIZE 12 /* 12 bits for 4096 bytes */
+#define F2FS_LOG_SECTORS_PER_BLOCK 3 /* log number for sector/blk */
#define F2FS_BLKSIZE 4096 /* support only 4KB block */
#define F2FS_MAX_EXTENSION 64 /* # of extension entries */
#define F2FS_BLK_ALIGN(x) (((x) + F2FS_BLKSIZE - 1) / F2FS_BLKSIZE)
--
cgit v1.2.1
From 072f1a489efa348223db07730c4b946a4b1ca0cc Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Thu, 11 Sep 2014 19:43:46 -0300
Subject: [media] v4l: videobuf2: Fix typos in comments
The buffer flags are incorrectly referred to as V4L2_BUF_FLAGS_* instead
of V4L2_BUF_FLAG_* in comments. Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/videobuf2-core.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index b3c9973463ed..a8608ce37a75 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -356,8 +356,8 @@ struct v4l2_fh;
* @buf_struct_size: size of the driver-specific buffer structure;
* "0" indicates the driver doesn't want to use a custom buffer
* structure type, so sizeof(struct vb2_buffer) will is used
- * @timestamp_flags: Timestamp flags; V4L2_BUF_FLAGS_TIMESTAMP_* and
- * V4L2_BUF_FLAGS_TSTAMP_SRC_*
+ * @timestamp_flags: Timestamp flags; V4L2_BUF_FLAG_TIMESTAMP_* and
+ * V4L2_BUF_FLAG_TSTAMP_SRC_*
* @gfp_flags: additional gfp flags used when allocating the buffers.
* Typically this is 0, but it may be e.g. GFP_DMA or __GFP_DMA32
* to force the buffer allocation to a specific memory zone.
--
cgit v1.2.1
From 8db3e5df4b5aa5ab8ce1edb8ee59ca9f2c2e7cd9 Mon Sep 17 00:00:00 2001
From: "nibble.max" <nibble.max@gmail.com>
Date: Wed, 6 Aug 2014 01:40:01 -0300
Subject: [media] rc: add dvbsky rc keymap macro
This RC will be used by DVBSky driver, added on the next patch.
Signed-off-by: Nibble Max <nibble.max@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/rc-map.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/media/rc-map.h b/include/media/rc-map.h
index 80f951890b4c..e7a1514075ec 100644
--- a/include/media/rc-map.h
+++ b/include/media/rc-map.h
@@ -135,6 +135,7 @@ void rc_map_init(void);
#define RC_MAP_DM1105_NEC "rc-dm1105-nec"
#define RC_MAP_DNTV_LIVE_DVBT_PRO "rc-dntv-live-dvbt-pro"
#define RC_MAP_DNTV_LIVE_DVB_T "rc-dntv-live-dvb-t"
+#define RC_MAP_DVBSKY "rc-dvbsky"
#define RC_MAP_EMPTY "rc-empty"
#define RC_MAP_EM_TERRATEC "rc-em-terratec"
#define RC_MAP_ENCORE_ENLTV2 "rc-encore-enltv2"
--
cgit v1.2.1
From 7e51aa4486bcf72daeb5d30227c4c01563f37044 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Wed, 2 Apr 2014 16:00:58 -0400
Subject: audit: drop unused struct audit_rule definition
The kernel only uses struct audit_rule_data. We dropped support for
struct audit_rule a long time ago. Drop the definition in the header
file.
Signed-off-by: Eric Paris <eparis@redhat.com>
---
include/uapi/linux/audit.h | 13 -------------
1 file changed, 13 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index cf6714752b69..df71b1d2cbb8 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -444,17 +444,4 @@ struct audit_rule_data {
char buf[0]; /* string fields buffer */
};
-/* audit_rule is supported to maintain backward compatibility with
- * userspace. It supports integer fields only and corresponds to
- * AUDIT_ADD, AUDIT_DEL and AUDIT_LIST requests.
- */
-struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */
- __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */
- __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */
- __u32 field_count;
- __u32 mask[AUDIT_BITMASK_SIZE];
- __u32 fields[AUDIT_MAX_FIELDS];
- __u32 values[AUDIT_MAX_FIELDS];
-};
-
#endif /* _UAPI_LINUX_AUDIT_H_ */
--
cgit v1.2.1
From 1002d94d30765b1faf0840adef9ed7e6b7aa5783 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Fri, 28 Feb 2014 15:34:19 -0500
Subject: syscall.h: fix doc text for syscall_get_arch()
syscall_get_arch() used to take a task as a argument. It now uses
current. Fix the doc text.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
include/asm-generic/syscall.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h
index d401e5463fb0..0c938a4354f6 100644
--- a/include/asm-generic/syscall.h
+++ b/include/asm-generic/syscall.h
@@ -147,7 +147,7 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
*
* Returns the AUDIT_ARCH_* based on the system call convention in use.
*
- * It's only valid to call this when @task is stopped on entry to a system
+ * It's only valid to call this when current is stopped on entry to a system
* call, due to %TIF_SYSCALL_TRACE, %TIF_SYSCALL_AUDIT, or %TIF_SECCOMP.
*
* Architectures which permit CONFIG_HAVE_ARCH_SECCOMP_FILTER must
--
cgit v1.2.1
From ce5d112827e5c2e9864323d0efd7ec2a62c6dce0 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 11 Mar 2014 13:50:46 -0400
Subject: ARCH: AUDIT: implement syscall_get_arch for all arches
For all arches which support audit implement syscall_get_arch()
They are all pretty easy and straight forward, stolen from how the call
to audit_syscall_entry() determines the arch.
Based-on-patch-by: Richard Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: linux-ia64@vger.kernel.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: sparclinux@vger.kernel.org
---
include/uapi/linux/audit.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index df71b1d2cbb8..4d100c841c80 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -351,6 +351,7 @@ enum {
#define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_M32R (EM_M32R)
#define AUDIT_ARCH_M68K (EM_68K)
+#define AUDIT_ARCH_MICROBLAZE (EM_MICROBLAZE)
#define AUDIT_ARCH_MIPS (EM_MIPS)
#define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT)
--
cgit v1.2.1
From 91397401bb5072f71e8ce8744ad0bdec3e875a91 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 11 Mar 2014 13:29:28 -0400
Subject: ARCH: AUDIT: audit_syscall_entry() should not require the arch
We have a function where the arch can be queried, syscall_get_arch().
So rather than have every single piece of arch specific code use and/or
duplicate syscall_get_arch(), just have the audit code use the
syscall_get_arch() code.
Based-on-patch-by: Richard Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux-mips@linux-mips.org
Cc: linux@lists.openrisc.net
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: linux-xtensa@linux-xtensa.org
Cc: x86@kernel.org
---
include/linux/audit.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 22cfddb75566..bb1c3ab611bf 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -26,6 +26,7 @@
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <uapi/linux/audit.h>
+#include <asm/syscall.h>
struct audit_sig_info {
uid_t uid;
@@ -141,12 +142,12 @@ static inline void audit_free(struct task_struct *task)
if (unlikely(task->audit_context))
__audit_free(task);
}
-static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
+static inline void audit_syscall_entry(int major, unsigned long a0,
unsigned long a1, unsigned long a2,
unsigned long a3)
{
if (unlikely(current->audit_context))
- __audit_syscall_entry(arch, major, a0, a1, a2, a3);
+ __audit_syscall_entry(syscall_get_arch(), major, a0, a1, a2, a3);
}
static inline void audit_syscall_exit(void *pt_regs)
{
@@ -322,7 +323,7 @@ static inline int audit_alloc(struct task_struct *task)
}
static inline void audit_free(struct task_struct *task)
{ }
-static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
+static inline void audit_syscall_entry(int major, unsigned long a0,
unsigned long a1, unsigned long a2,
unsigned long a3)
{ }
--
cgit v1.2.1
From a9ebe0b98896b276a3a1664da5f40d3b7c92f316 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 22 Apr 2014 11:46:16 -0400
Subject: audit: fix build error when asm/syscall.h does not exist
avr32 does not have an asm/syscall.h file. We need the
syscall_get_arch() definition from that file for all arch's which
support CONFIG_AUDITSYSCALL. Obviously avr32 is not one of those
arch's. Move the include inside the CONFIG_AUDITSYSCALL such that we
only do the include if we need the results.
When the syscall_get_arch() call is moved inside __audit_syscall_entry()
this include can be dropped entirely. But that is going to require some
assembly changes on x86* in a patch that is not ready for the tree...
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
include/linux/audit.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/audit.h b/include/linux/audit.h
index bb1c3ab611bf..783157b289e8 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -26,7 +26,6 @@
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <uapi/linux/audit.h>
-#include <asm/syscall.h>
struct audit_sig_info {
uid_t uid;
@@ -110,6 +109,8 @@ extern void audit_log_session_info(struct audit_buffer *ab);
#endif
#ifdef CONFIG_AUDITSYSCALL
+#include <asm/syscall.h> /* for syscall_get_arch() */
+
/* These are defined in auditsc.c */
/* Public API */
extern int audit_alloc(struct task_struct *task);
--
cgit v1.2.1
From b4f0d3755c5e9cc86292d5fd78261903b4f23d4a Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Tue, 4 Mar 2014 10:38:06 -0500
Subject: audit: x86: drop arch from __audit_syscall_entry() interface
Since the arch is found locally in __audit_syscall_entry(), there is no need to
pass it in as a parameter. Delete it from the parameter list.
x86* was the only arch to call __audit_syscall_entry() directly and did so from
assembly code.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-audit@redhat.com
Signed-off-by: Eric Paris <eparis@redhat.com>
---
As this patch relies on changes in the audit tree, I think it
appropriate to send it through my tree rather than the x86 tree.
---
include/linux/audit.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 783157b289e8..1ae00891aff9 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -115,8 +115,7 @@ extern void audit_log_session_info(struct audit_buffer *ab);
/* Public API */
extern int audit_alloc(struct task_struct *task);
extern void __audit_free(struct task_struct *task);
-extern void __audit_syscall_entry(int arch,
- int major, unsigned long a0, unsigned long a1,
+extern void __audit_syscall_entry(int major, unsigned long a0, unsigned long a1,
unsigned long a2, unsigned long a3);
extern void __audit_syscall_exit(int ret_success, long ret_value);
extern struct filename *__audit_reusename(const __user char *uptr);
@@ -148,7 +147,7 @@ static inline void audit_syscall_entry(int major, unsigned long a0,
unsigned long a3)
{
if (unlikely(current->audit_context))
- __audit_syscall_entry(syscall_get_arch(), major, a0, a1, a2, a3);
+ __audit_syscall_entry(major, a0, a1, a2, a3);
}
static inline void audit_syscall_exit(void *pt_regs)
{
--
cgit v1.2.1
From 219ca39427bf6c46c4e1473493e33bc00635e99b Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Wed, 26 Mar 2014 07:26:47 -0400
Subject: audit: use union for audit_field values since they are mutually
exclusive
Since only one of val, uid, gid and lsm* are used at any given time, combine
them to reduce the size of the struct audit_field.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
---
include/linux/audit.h | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 1ae00891aff9..36dffeccebdb 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -66,12 +66,16 @@ struct audit_krule {
struct audit_field {
u32 type;
- u32 val;
- kuid_t uid;
- kgid_t gid;
+ union {
+ u32 val;
+ kuid_t uid;
+ kgid_t gid;
+ struct {
+ char *lsm_str;
+ void *lsm_rule;
+ };
+ };
u32 op;
- char *lsm_str;
- void *lsm_rule;
};
extern int is_audit_feature_set(int which);
--
cgit v1.2.1
From 9e87f9a9c4c4754508b2c2638fbde9e10c7a103b Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Sat, 13 Sep 2014 10:28:49 +0200
Subject: NFC: nci: Add support for proprietary RF Protocols
In NFC Forum NCI specification, some RF Protocol values are
reserved for proprietary use (from 0x80 to 0xfe).
Some CLF vendor may need to use one value within this range
for specific technology.
Furthermore, some CLF may not becompliant with NFC Froum NCI
specification 2.0 and therefore will not support RF Protocol
value 0x06 for PROTOCOL_T5T as mention in a draft specification
and in a recent push.
Adding get_rf_protocol handle to the nci_ops structure will
help to set the correct technology to target.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci_core.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 1f9a0f5272fe..75d10e625c49 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -64,10 +64,11 @@ enum nci_state {
struct nci_dev;
struct nci_ops {
- int (*open)(struct nci_dev *ndev);
- int (*close)(struct nci_dev *ndev);
- int (*send)(struct nci_dev *ndev, struct sk_buff *skb);
- int (*setup)(struct nci_dev *ndev);
+ int (*open)(struct nci_dev *ndev);
+ int (*close)(struct nci_dev *ndev);
+ int (*send)(struct nci_dev *ndev, struct sk_buff *skb);
+ int (*setup)(struct nci_dev *ndev);
+ __u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol);
};
#define NCI_MAX_SUPPORTED_RF_INTERFACES 4
--
cgit v1.2.1
From 9908fb654088e50d7d528f74898c5e5ebbd0fb68 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 22 Sep 2014 09:30:11 -0700
Subject: drm: change drm_err return type to void
The return value is not used by callers of this function
nor by uses of the DRM_ERROR macro so change the function
to return void.
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 5c60d384b37b..2163ccbee50f 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -124,7 +124,7 @@ extern __printf(2, 3)
void drm_ut_debug_printk(const char *function_name,
const char *format, ...);
extern __printf(2, 3)
-int drm_err(const char *func, const char *format, ...);
+void drm_err(const char *func, const char *format, ...);
/***********************************************************************/
/** \name DRM template customization defaults */
--
cgit v1.2.1
From bfbf3c851ce53b914fe98d60ea3fe3fc1ab75b96 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 23 Sep 2014 15:46:49 +0200
Subject: drm: move drm_mmap to <drm/drm_legacy.h>
Now that we've removed the copypasted users in gem/ttm we can
relegate the legacy buffer mapping support to where it belongs.
Also give it the proper drm_legacy_ prefix.
While at it statify drm_mmap_locked, somehow I've missed that in my
previous header rework.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 1 -
include/drm/drm_legacy.h | 1 +
2 files changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 2163ccbee50f..40c999019d9e 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -961,7 +961,6 @@ extern ssize_t drm_read(struct file *filp, char __user *buffer,
extern int drm_release(struct inode *inode, struct file *filp);
/* Mapping support (drm_vm.h) */
-extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma);
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h
index 6486306beb0d..3e698038dc7b 100644
--- a/include/drm/drm_legacy.h
+++ b/include/drm/drm_legacy.h
@@ -157,6 +157,7 @@ int drm_legacy_addmap(struct drm_device *d, resource_size_t offset,
int drm_legacy_rmmap(struct drm_device *d, struct drm_local_map *map);
int drm_legacy_rmmap_locked(struct drm_device *d, struct drm_local_map *map);
struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev);
+int drm_legacy_mmap(struct file *filp, struct vm_area_struct *vma);
int drm_legacy_addbufs_agp(struct drm_device *d, struct drm_buf_desc *req);
int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req);
--
cgit v1.2.1
From 884d9f05eb6c765d62da0ec8c36a669d8c813340 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 23 Sep 2014 15:46:50 +0200
Subject: drm: Move drm_vm_open_locked into drm_internal.h
Leftover from my previous header cleanup.
This depends upon the patch to rework exynos mmap support, otherwise
it'll break exynos.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 40c999019d9e..7b545975afd9 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -961,7 +961,6 @@ extern ssize_t drm_read(struct file *filp, char __user *buffer,
extern int drm_release(struct inode *inode, struct file *filp);
/* Mapping support (drm_vm.h) */
-extern void drm_vm_open_locked(struct drm_device *dev, struct vm_area_struct *vma);
extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
/* Misc. IOCTL support (drm_ioctl.c) */
--
cgit v1.2.1
From e7f0a889841e14315062c268abea6d2e657d60d3 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 23 Sep 2014 15:46:51 +0200
Subject: drm: Move leftover ioctl declarations to drm_internal.h
Somehow I've missed these three, fix this up asap. Plus move
drm_master_create since while at it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 7 -------
1 file changed, 7 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 7b545975afd9..1ec2ca1d997b 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1026,15 +1026,8 @@ static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc
/* Modesetting support */
extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
-extern int drm_modeset_ctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
/* Stub support (drm_stub.h) */
-extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-extern int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv);
-struct drm_master *drm_master_create(struct drm_minor *minor);
extern struct drm_master *drm_master_get(struct drm_master *master);
extern void drm_master_put(struct drm_master **master);
--
cgit v1.2.1
From c2611031b49e9ccd571a3737845af3fca2a2090f Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 23 Sep 2014 15:46:52 +0200
Subject: drm: Move internal debugfs functions to drm_internal.h
In my header cleanup I've missed the debugfs functions completely.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 25 -------------------------
1 file changed, 25 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 1ec2ca1d997b..6656fd7d64d4 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1037,23 +1037,12 @@ extern unsigned int drm_debug;
/* Debugfs support */
#if defined(CONFIG_DEBUG_FS)
-extern int drm_debugfs_init(struct drm_minor *minor, int minor_id,
- struct dentry *root);
extern int drm_debugfs_create_files(const struct drm_info_list *files,
int count, struct dentry *root,
struct drm_minor *minor);
extern int drm_debugfs_remove_files(const struct drm_info_list *files,
int count, struct drm_minor *minor);
-extern int drm_debugfs_cleanup(struct drm_minor *minor);
-extern int drm_debugfs_connector_add(struct drm_connector *connector);
-extern void drm_debugfs_connector_remove(struct drm_connector *connector);
#else
-static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
- struct dentry *root)
-{
- return 0;
-}
-
static inline int drm_debugfs_create_files(const struct drm_info_list *files,
int count, struct dentry *root,
struct drm_minor *minor)
@@ -1066,20 +1055,6 @@ static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
{
return 0;
}
-
-static inline int drm_debugfs_cleanup(struct drm_minor *minor)
-{
- return 0;
-}
-
-static inline int drm_debugfs_connector_add(struct drm_connector *connector)
-{
- return 0;
-}
-static inline void drm_debugfs_connector_remove(struct drm_connector *connector)
-{
-}
-
#endif
extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
--
cgit v1.2.1
From d9fc9413f97f5c615256a5657ec667c064c07a70 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 23 Sep 2014 15:46:53 +0200
Subject: drm: Extract <drm/drm_gem.h>
v2: Don't forget git add, noticed by David.
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drmP.h | 148 +------------------------------
include/drm/drm_gem.h | 183 +++++++++++++++++++++++++++++++++++++++
include/drm/drm_gem_cma_helper.h | 1 +
3 files changed, 185 insertions(+), 147 deletions(-)
create mode 100644 include/drm/drm_gem.h
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 6656fd7d64d4..d2c2b7f3a4e2 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -82,6 +82,7 @@ struct drm_agp_head;
struct drm_local_map;
struct drm_device_dma;
struct drm_dma_handle;
+struct drm_gem_object;
struct device_node;
struct videomode;
@@ -330,93 +331,6 @@ struct drm_lock_data {
int idle_has_lock;
};
-/**
- * This structure defines the drm_mm memory object, which will be used by the
- * DRM for its buffer objects.
- */
-struct drm_gem_object {
- /** Reference count of this object */
- struct kref refcount;
-
- /**
- * handle_count - gem file_priv handle count of this object
- *
- * Each handle also holds a reference. Note that when the handle_count
- * drops to 0 any global names (e.g. the id in the flink namespace) will
- * be cleared.
- *
- * Protected by dev->object_name_lock.
- * */
- unsigned handle_count;
-
- /** Related drm device */
- struct drm_device *dev;
-
- /** File representing the shmem storage */
- struct file *filp;
-
- /* Mapping info for this object */
- struct drm_vma_offset_node vma_node;
-
- /**
- * Size of the object, in bytes. Immutable over the object's
- * lifetime.
- */
- size_t size;
-
- /**
- * Global name for this object, starts at 1. 0 means unnamed.
- * Access is covered by the object_name_lock in the related drm_device
- */
- int name;
-
- /**
- * Memory domains. These monitor which caches contain read/write data
- * related to the object. When transitioning from one set of domains
- * to another, the driver is called to ensure that caches are suitably
- * flushed and invalidated
- */
- uint32_t read_domains;
- uint32_t write_domain;
-
- /**
- * While validating an exec operation, the
- * new read/write domain values are computed here.
- * They will be transferred to the above values
- * at the point that any cache flushing occurs
- */
- uint32_t pending_read_domains;
- uint32_t pending_write_domain;
-
- /**
- * dma_buf - dma buf associated with this GEM object
- *
- * Pointer to the dma-buf associated with this gem object (either
- * through importing or exporting). We break the resulting reference
- * loop when the last gem handle for this object is released.
- *
- * Protected by obj->object_name_lock
- */
- struct dma_buf *dma_buf;
-
- /**
- * import_attach - dma buf attachment backing this object
- *
- * Any foreign dma_buf imported as a gem object has this set to the
- * attachment point for the device. This is invariant over the lifetime
- * of a gem object.
- *
- * The driver's ->gem_free_object callback is responsible for cleaning
- * up the dma_buf attachment and references acquired at import time.
- *
- * Note that the drm gem/prime core does not depend upon drivers setting
- * this field any more. So for drivers where this doesn't make sense
- * (e.g. virtual devices or a displaylink behind an usb bus) they can
- * simply leave it as NULL.
- */
- struct dma_buf_attachment *import_attach;
-};
-
/**
* struct drm_master - drm master structure
*
@@ -1073,10 +987,6 @@ extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **
extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
-int drm_gem_dumb_destroy(struct drm_file *file,
- struct drm_device *dev,
- uint32_t handle);
-
extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size,
size_t align);
@@ -1085,62 +995,6 @@ extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah);
/* sysfs support (drm_sysfs.c) */
extern void drm_sysfs_hotplug_event(struct drm_device *dev);
-/* Graphics Execution Manager library functions (drm_gem.c) */
-void drm_gem_object_release(struct drm_gem_object *obj);
-void drm_gem_object_free(struct kref *kref);
-int drm_gem_object_init(struct drm_device *dev,
- struct drm_gem_object *obj, size_t size);
-void drm_gem_private_object_init(struct drm_device *dev,
- struct drm_gem_object *obj, size_t size);
-void drm_gem_vm_open(struct vm_area_struct *vma);
-void drm_gem_vm_close(struct vm_area_struct *vma);
-int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
- struct vm_area_struct *vma);
-int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
-
-static inline void
-drm_gem_object_reference(struct drm_gem_object *obj)
-{
- kref_get(&obj->refcount);
-}
-
-static inline void
-drm_gem_object_unreference(struct drm_gem_object *obj)
-{
- if (obj != NULL)
- kref_put(&obj->refcount, drm_gem_object_free);
-}
-
-static inline void
-drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
-{
- if (obj && !atomic_add_unless(&obj->refcount.refcount, -1, 1)) {
- struct drm_device *dev = obj->dev;
-
- mutex_lock(&dev->struct_mutex);
- if (likely(atomic_dec_and_test(&obj->refcount.refcount)))
- drm_gem_object_free(&obj->refcount);
- mutex_unlock(&dev->struct_mutex);
- }
-}
-
-int drm_gem_handle_create(struct drm_file *file_priv,
- struct drm_gem_object *obj,
- u32 *handlep);
-int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
-
-
-void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
-int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
-int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size);
-
-struct page **drm_gem_get_pages(struct drm_gem_object *obj);
-void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
- bool dirty, bool accessed);
-
-struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
- struct drm_file *filp,
- u32 handle);
struct drm_device *drm_dev_alloc(struct drm_driver *driver,
struct device *parent);
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
new file mode 100644
index 000000000000..1e6ae1458f7a
--- /dev/null
+++ b/include/drm/drm_gem.h
@@ -0,0 +1,183 @@
+#ifndef __DRM_GEM_H__
+#define __DRM_GEM_H__
+
+/*
+ * GEM Graphics Execution Manager Driver Interfaces
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright (c) 2009-2010, Code Aurora Forum.
+ * All rights reserved.
+ * Copyright © 2014 Intel Corporation
+ * Daniel Vetter <daniel.vetter@ffwll.ch>
+ *
+ * Author: Rickard E. (Rik) Faith <faith@valinux.com>
+ * Author: Gareth Hughes <gareth@valinux.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * This structure defines the drm_mm memory object, which will be used by the
+ * DRM for its buffer objects.
+ */
+struct drm_gem_object {
+ /** Reference count of this object */
+ struct kref refcount;
+
+ /**
+ * handle_count - gem file_priv handle count of this object
+ *
+ * Each handle also holds a reference. Note that when the handle_count
+ * drops to 0 any global names (e.g. the id in the flink namespace) will
+ * be cleared.
+ *
+ * Protected by dev->object_name_lock.
+ * */
+ unsigned handle_count;
+
+ /** Related drm device */
+ struct drm_device *dev;
+
+ /** File representing the shmem storage */
+ struct file *filp;
+
+ /* Mapping info for this object */
+ struct drm_vma_offset_node vma_node;
+
+ /**
+ * Size of the object, in bytes. Immutable over the object's
+ * lifetime.
+ */
+ size_t size;
+
+ /**
+ * Global name for this object, starts at 1. 0 means unnamed.
+ * Access is covered by the object_name_lock in the related drm_device
+ */
+ int name;
+
+ /**
+ * Memory domains. These monitor which caches contain read/write data
+ * related to the object. When transitioning from one set of domains
+ * to another, the driver is called to ensure that caches are suitably
+ * flushed and invalidated
+ */
+ uint32_t read_domains;
+ uint32_t write_domain;
+
+ /**
+ * While validating an exec operation, the
+ * new read/write domain values are computed here.
+ * They will be transferred to the above values
+ * at the point that any cache flushing occurs
+ */
+ uint32_t pending_read_domains;
+ uint32_t pending_write_domain;
+
+ /**
+ * dma_buf - dma buf associated with this GEM object
+ *
+ * Pointer to the dma-buf associated with this gem object (either
+ * through importing or exporting). We break the resulting reference
+ * loop when the last gem handle for this object is released.
+ *
+ * Protected by obj->object_name_lock
+ */
+ struct dma_buf *dma_buf;
+
+ /**
+ * import_attach - dma buf attachment backing this object
+ *
+ * Any foreign dma_buf imported as a gem object has this set to the
+ * attachment point for the device. This is invariant over the lifetime
+ * of a gem object.
+ *
+ * The driver's ->gem_free_object callback is responsible for cleaning
+ * up the dma_buf attachment and references acquired at import time.
+ *
+ * Note that the drm gem/prime core does not depend upon drivers setting
+ * this field any more. So for drivers where this doesn't make sense
+ * (e.g. virtual devices or a displaylink behind an usb bus) they can
+ * simply leave it as NULL.
+ */
+ struct dma_buf_attachment *import_attach;
+};
+
+void drm_gem_object_release(struct drm_gem_object *obj);
+void drm_gem_object_free(struct kref *kref);
+int drm_gem_object_init(struct drm_device *dev,
+ struct drm_gem_object *obj, size_t size);
+void drm_gem_private_object_init(struct drm_device *dev,
+ struct drm_gem_object *obj, size_t size);
+void drm_gem_vm_open(struct vm_area_struct *vma);
+void drm_gem_vm_close(struct vm_area_struct *vma);
+int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
+ struct vm_area_struct *vma);
+int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
+
+static inline void
+drm_gem_object_reference(struct drm_gem_object *obj)
+{
+ kref_get(&obj->refcount);
+}
+
+static inline void
+drm_gem_object_unreference(struct drm_gem_object *obj)
+{
+ if (obj != NULL)
+ kref_put(&obj->refcount, drm_gem_object_free);
+}
+
+static inline void
+drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
+{
+ if (obj && !atomic_add_unless(&obj->refcount.refcount, -1, 1)) {
+ struct drm_device *dev = obj->dev;
+
+ mutex_lock(&dev->struct_mutex);
+ if (likely(atomic_dec_and_test(&obj->refcount.refcount)))
+ drm_gem_object_free(&obj->refcount);
+ mutex_unlock(&dev->struct_mutex);
+ }
+}
+
+int drm_gem_handle_create(struct drm_file *file_priv,
+ struct drm_gem_object *obj,
+ u32 *handlep);
+int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
+
+
+void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
+int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
+int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size);
+
+struct page **drm_gem_get_pages(struct drm_gem_object *obj);
+void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
+ bool dirty, bool accessed);
+
+struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
+ struct drm_file *filp,
+ u32 handle);
+int drm_gem_dumb_destroy(struct drm_file *file,
+ struct drm_device *dev,
+ uint32_t handle);
+
+#endif /* __DRM_GEM_H__ */
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index 2a3cea91606d..42f11f3a8d39 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -2,6 +2,7 @@
#define __DRM_GEM_CMA_HELPER_H__
#include <drm/drmP.h>
+#include <drm/drm_gem.h>
struct drm_gem_cma_object {
struct drm_gem_object base;
--
cgit v1.2.1
From 9a37110d20c95d1ebf6c04881177fe8f62831db2 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 14:31:39 -0400
Subject: locking: Add WARN_ON_ONCE lock assertion
An interface may need to assert a lock invariant and not flood the
system logs; add a lockdep helper macro equivalent to
lockdep_assert_held() which only WARNs once.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/lockdep.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 008388f920d7..64c7425afbce 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -362,6 +362,10 @@ extern void lockdep_trace_alloc(gfp_t mask);
WARN_ON(debug_locks && !lockdep_is_held(l)); \
} while (0)
+#define lockdep_assert_held_once(l) do { \
+ WARN_ON_ONCE(debug_locks && !lockdep_is_held(l)); \
+ } while (0)
+
#define lockdep_recursing(tsk) ((tsk)->lockdep_recursion)
#else /* !CONFIG_LOCKDEP */
@@ -412,6 +416,7 @@ struct lock_class_key { };
#define lockdep_depth(tsk) (0)
#define lockdep_assert_held(l) do { (void)(l); } while (0)
+#define lockdep_assert_held_once(l) do { (void)(l); } while (0)
#define lockdep_recursing(tsk) (0)
--
cgit v1.2.1
From 2a159389bf5d962359349a76827b2f683276a1c7 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Aug 2014 17:51:26 +0200
Subject: USB: core: add device-qualifier quirk
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Add new quirk for devices that cannot handle requests for the
device_qualifier descriptor.
A USB-2.0 compliant device must respond to requests for the
device_qualifier descriptor (even if it's with a request error), but at
least one device is known to misbehave after such a request.
Suggested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/quirks.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 55a17b188daa..ffe565c94743 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -41,4 +41,7 @@
*/
#define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL 0x00000080
+/* device can't handle device_qualifier descriptor requests */
+#define USB_QUIRK_DEVICE_QUALIFIER 0x00000100
+
#endif /* __LINUX_USB_QUIRKS_H */
--
cgit v1.2.1
From 299245a145b2ad4cfb4c5432eb1264299f55e7e0 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 15:06:24 -0400
Subject: serial: core: Privatize modem status enable flags
The serial core uses the tty port flags, ASYNC_CTS_FLOW and
ASYNC_CD_CHECK, to track whether CTS and DCD changes should be
ignored or handled. However, the tty port flags are not safe for
atomic bit operations and no lock provides serialized updates.
Introduce the struct uart_port status field to track CTS and DCD
enable states, and serialize access with uart port lock. Substitute
uart_cts_enabled() helper for tty_port_cts_enabled().
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 3bd7d55eebce..452c9cc9d717 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -112,6 +112,7 @@ struct uart_icount {
};
typedef unsigned int __bitwise__ upf_t;
+typedef unsigned int __bitwise__ upstat_t;
struct uart_port {
spinlock_t lock; /* port lock */
@@ -190,6 +191,12 @@ struct uart_port {
#define UPF_CHANGE_MASK ((__force upf_t) (0x17fff))
#define UPF_USR_MASK ((__force upf_t) (UPF_SPD_MASK|UPF_LOW_LATENCY))
+ /* status must be updated while holding port lock */
+ upstat_t status;
+
+#define UPSTAT_CTS_ENABLE ((__force upstat_t) (1 << 0))
+#define UPSTAT_DCD_ENABLE ((__force upstat_t) (1 << 1))
+
unsigned int mctrl; /* current modem ctrl settings */
unsigned int timeout; /* character-based timeout */
unsigned int type; /* port type */
@@ -355,6 +362,11 @@ static inline int uart_tx_stopped(struct uart_port *port)
return 0;
}
+static inline bool uart_cts_enabled(struct uart_port *uport)
+{
+ return uport->status & UPSTAT_CTS_ENABLE;
+}
+
/*
* The following are helper functions for the low level drivers.
*/
--
cgit v1.2.1
From d01f4d181c92877ecc678adce248a30cb7077ff1 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 15:06:26 -0400
Subject: serial: core: Privatize tty->hw_stopped
tty->hw_stopped is not used by the tty core and is thread-unsafe;
hw_stopped is a member of a bitfield whose fields are updated
non-atomically and no lock is suitable for serializing updates.
Replace serial core usage of tty->hw_stopped with uport->hw_stopped.
Use int storage which works around Alpha EV4/5 non-atomic byte storage,
since uart_port uses different locks to protect certain fields within the
structure.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 452c9cc9d717..204c452a7567 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -197,6 +197,7 @@ struct uart_port {
#define UPSTAT_CTS_ENABLE ((__force upstat_t) (1 << 0))
#define UPSTAT_DCD_ENABLE ((__force upstat_t) (1 << 1))
+ int hw_stopped; /* sw-assisted CTS flow state */
unsigned int mctrl; /* current modem ctrl settings */
unsigned int timeout; /* character-based timeout */
unsigned int type; /* port type */
@@ -357,7 +358,7 @@ int uart_resume_port(struct uart_driver *reg, struct uart_port *port);
static inline int uart_tx_stopped(struct uart_port *port)
{
struct tty_struct *tty = port->state->port.tty;
- if(tty->stopped || tty->hw_stopped)
+ if (tty->stopped || port->hw_stopped)
return 1;
return 0;
}
--
cgit v1.2.1
From d7a855bd6ab25d10d5e3b6aeb53d9c57fa17b808 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 15:06:30 -0400
Subject: tty: Convert tty_struct bitfield to ints
The stopped, hw_stopped, flow_stopped and packet bits are smp-unsafe
and interrupt-unsafe. For example,
CPU 0 | CPU 1
|
tty->flow_stopped = 1 | tty->hw_stopped = 0
One of these updates will be corrupted, as the bitwise operation
on the bitfield is non-atomic.
Ensure each flag has a separate memory location, so concurrent
updates do not corrupt orthogonal states. Because DEC Alpha EV4 and EV5
cpus (from 1995) perform RMW on smaller-than-machine-word storage,
"separate memory location" must be int instead of byte.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 84132942902a..4cfd4a82fc31 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -261,7 +261,10 @@ struct tty_struct {
unsigned long flags;
int count;
struct winsize winsize; /* winsize_mutex */
- unsigned char stopped:1, hw_stopped:1, flow_stopped:1, packet:1;
+ int stopped;
+ int flow_stopped;
+ int hw_stopped;
+ int packet;
unsigned char ctrl_status; /* ctrl_lock */
unsigned int receive_room; /* Bytes free for queue */
int flow_change;
--
cgit v1.2.1
From f9e053dcfc02b0ad29daec8524fb1afe09774976 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 15:06:31 -0400
Subject: tty: Serialize tty flow control changes with flow_lock
Without serialization, the flow control state can become inverted
wrt. the actual hardware state. For example,
CPU 0 | CPU 1
stop_tty() |
lock ctrl_lock |
tty->stopped = 1 |
unlock ctrl_lock |
| start_tty()
| lock ctrl_lock
| tty->stopped = 0
| unlock ctrl_lock
| driver->start()
driver->stop() |
In this case, the flow control state now indicates the tty has
been started, but the actual hardware state has actually been stopped.
Introduce tty->flow_lock spinlock to serialize tty flow control changes.
Split out unlocked __start_tty()/__stop_tty() flavors for use by
ioctl(TCXONC) in follow-on patch.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 5 ++++-
include/linux/tty_driver.h | 4 ++++
2 files changed, 8 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 4cfd4a82fc31..fd4148d3a261 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -252,6 +252,7 @@ struct tty_struct {
struct rw_semaphore termios_rwsem;
struct mutex winsize_mutex;
spinlock_t ctrl_lock;
+ spinlock_t flow_lock;
/* Termios values are protected by the termios rwsem */
struct ktermios termios, termios_locked;
struct termiox *termiox; /* May be NULL for unsupported */
@@ -261,7 +262,7 @@ struct tty_struct {
unsigned long flags;
int count;
struct winsize winsize; /* winsize_mutex */
- int stopped;
+ int stopped; /* flow_lock */
int flow_stopped;
int hw_stopped;
int packet;
@@ -400,7 +401,9 @@ extern int tty_paranoia_check(struct tty_struct *tty, struct inode *inode,
extern char *tty_name(struct tty_struct *tty, char *buf);
extern void tty_wait_until_sent(struct tty_struct *tty, long timeout);
extern int tty_check_change(struct tty_struct *tty);
+extern void __stop_tty(struct tty_struct *tty);
extern void stop_tty(struct tty_struct *tty);
+extern void __start_tty(struct tty_struct *tty);
extern void start_tty(struct tty_struct *tty);
extern int tty_register_driver(struct tty_driver *driver);
extern int tty_unregister_driver(struct tty_driver *driver);
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index e48c608a8fa8..92e337c18839 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -152,6 +152,8 @@
* This routine notifies the tty driver that it should stop
* outputting characters to the tty device.
*
+ * Called with ->flow_lock held. Serialized with start() method.
+ *
* Optional:
*
* Note: Call stop_tty not this method.
@@ -161,6 +163,8 @@
* This routine notifies the tty driver that it resume sending
* characters to the tty device.
*
+ * Called with ->flow_lock held. Serialized with stop() method.
+ *
* Optional:
*
* Note: Call start_tty not this method.
--
cgit v1.2.1
From c545b66c6922b002b5fe224a6eaec58c913650b5 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 15:06:33 -0400
Subject: tty: Serialize tcflow() with other tty flow control changes
Use newly-introduced tty->flow_lock to serialize updates to
tty->flow_stopped (via tcflow()) and with concurrent tty flow
control changes from other sources.
Merge the storage for ->stopped and ->flow_stopped, now that both
flags are serialized by ->flow_lock.
The padding bits are necessary to force the compiler to allocate the
type specified; otherwise, gcc will ignore the type specifier and
allocate the minimum number of bytes necessary to store the bitfield.
In turn, this would allow Alpha EV4 and EV5 cpus to corrupt adjacent
byte storage because those cpus use RMW to store byte and short data.
gcc versions < 4.7.2 will also corrupt storage adjacent to bitfields
smaller than unsigned long on ia64, ppc64, hppa64 and sparc64, thus
requiring more than unsigned int storage (which would otherwise be
sufficient to workaround the Alpha non-atomic byte/short storage problem).
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index fd4148d3a261..d80b53642f2c 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -262,8 +262,9 @@ struct tty_struct {
unsigned long flags;
int count;
struct winsize winsize; /* winsize_mutex */
- int stopped; /* flow_lock */
- int flow_stopped;
+ unsigned long stopped:1, /* flow_lock */
+ flow_stopped:1,
+ unused:62;
int hw_stopped;
int packet;
unsigned char ctrl_status; /* ctrl_lock */
--
cgit v1.2.1
From 136d5258b2bc4ffae99cb69874a76624c26fbfad Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 15:06:34 -0400
Subject: tty: Move and rename send_prio_char() as tty_send_xchar()
Relocate the file-scope function, send_prio_char(), as a global
helper tty_send_xchar(). Remove the global declarations for
tty_write_lock()/tty_write_unlock(), as these are file-scope only now.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index d80b53642f2c..4c6b9fd3c750 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -418,6 +418,7 @@ extern void tty_unregister_device(struct tty_driver *driver, unsigned index);
extern int tty_read_raw_data(struct tty_struct *tty, unsigned char *bufp,
int buflen);
extern void tty_write_message(struct tty_struct *tty, char *msg);
+extern int tty_send_xchar(struct tty_struct *tty, char ch);
extern int tty_put_char(struct tty_struct *tty, unsigned char c);
extern int tty_chars_in_buffer(struct tty_struct *tty);
extern int tty_write_room(struct tty_struct *tty);
@@ -502,8 +503,6 @@ extern struct tty_struct *tty_pair_get_pty(struct tty_struct *tty);
extern struct mutex tty_mutex;
extern spinlock_t tty_files_lock;
-extern void tty_write_unlock(struct tty_struct *tty);
-extern int tty_write_lock(struct tty_struct *tty, int ndelay);
#define tty_is_writelocked(tty) (mutex_is_locked(&tty->atomic_write_lock))
extern void tty_port_init(struct tty_port *port);
--
cgit v1.2.1
From 99416322dd16b810ba74098cc50ef2a844091d35 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 15:06:36 -0400
Subject: tty: Workaround Alpha non-atomic byte storage in tty_struct
The Alpha EV4/EV5 cpus can corrupt adjacent byte and short data because
those cpus use RMW to store byte and short data. Thus, concurrent adjacent
byte stores could become corrupted, if serialized by a different lock.
tty_struct uses different locks to protect certain fields within the
structure, and thus is vulnerable to byte stores which are not atomic.
Merge the ->ctrl_status byte and packet mode bit, both protected by the
->ctrl_lock, into an unsigned long.
The padding bits are necessary to force the compiler to allocate the
type specified; otherwise, gcc will ignore the type specifier and
allocate the minimum number of bytes required to store the bitfield.
In turn, this would allow Alpha EV4/EV5 cpus to corrupt adjacent byte
or short storage (because those cpus use RMW to store byte and short data).
gcc versions < 4.7.2 will also corrupt storage adjacent to bitfields
smaller than unsigned long on ia64, ppc64, hppa64, and sparc64, thus
requiring more than unsigned int storage (which would otherwise be
sufficient to fix the Alpha non-atomic storage problem).
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 4c6b9fd3c750..546e94557895 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -266,8 +266,9 @@ struct tty_struct {
flow_stopped:1,
unused:62;
int hw_stopped;
- int packet;
- unsigned char ctrl_status; /* ctrl_lock */
+ unsigned long ctrl_status:8, /* ctrl_lock */
+ packet:1,
+ unused_ctrl:55;
unsigned int receive_room; /* Bytes free for queue */
int flow_change;
--
cgit v1.2.1
From f2693b430b33d9554daa0f21fbcae57633f8d4f1 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 19 Aug 2014 09:51:52 +0800
Subject: usb: hcd: add TPL support flag
The targeted hosts (non-PC hosts) need to have TPL (Targeted Peripheral List)
for USB OTG & EH certification and other vendor specific requirements.
The platform who needs TPL feature should set this flag at usb host
controller driver.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/hcd.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 485cd5e2100c..a48c89e96988 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -144,6 +144,7 @@ struct usb_hcd {
unsigned has_tt:1; /* Integrated TT in root hub */
unsigned amd_resume_bug:1; /* AMD remote wakeup quirk */
unsigned can_do_streams:1; /* HC supports streams */
+ unsigned tpl_support:1; /* OTG & EH TPL support */
unsigned int irq; /* irq allocated */
void __iomem *regs; /* device memory/io */
--
cgit v1.2.1
From 05f8b35a62efb8e70ebcd78e9c957324e9caddad Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 19 Aug 2014 09:51:55 +0800
Subject: usb: common: add API to get if the platform supports TPL
The TPL (Targeted Peripheral List) is used for targeted hosts
(non-PC hosts), and it can be used at USB OTG & EH certification
and some specific products which need white list.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/of.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h
index 8c38aa26b3bb..cfe0528cdbb1 100644
--- a/include/linux/usb/of.h
+++ b/include/linux/usb/of.h
@@ -14,6 +14,7 @@
#if IS_ENABLED(CONFIG_OF)
enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np);
+bool of_usb_host_tpl_support(struct device_node *np);
#else
static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
{
@@ -25,6 +26,10 @@ of_usb_get_maximum_speed(struct device_node *np)
{
return USB_SPEED_UNKNOWN;
}
+static inline bool of_usb_host_tpl_support(struct device_node *np)
+{
+ return false;
+}
#endif
#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)
--
cgit v1.2.1
From f6a9ff07832a9d30d457e976e6233b4351cd4cdf Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 19 Aug 2014 09:51:56 +0800
Subject: usb: chipidea: add TPL support for targeted hosts
For OTG and Embedded hosts, they may need TPL (Targeted Peripheral List)
for usb certification and other vender specific requirements, the
platform can tell chipidea core driver if it supports tpl through DT
or platform data.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/chipidea.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index bbe779f640be..e14c09a45c5a 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -31,6 +31,7 @@ struct ci_hdrc_platform_data {
#define CI_HDRC_CONTROLLER_STOPPED_EVENT 1
void (*notify_event) (struct ci_hdrc *ci, unsigned event);
struct regulator *reg_vbus;
+ bool tpl_support;
};
/* Default offset of capability registers */
--
cgit v1.2.1
From 593078525c8b234a35a36ff551b8716464e86481 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 15 Sep 2014 16:04:12 +0200
Subject: uas: Add a quirk for rejecting ATA_12 and ATA_16 commands
And set this quirk for the Seagate Expansion Desk (0bc2:2312), as that one
seems to hang upon receiving an ATA_12 or ATA_16 command.
https://bugzilla.kernel.org/show_bug.cgi?id=79511
https://bbs.archlinux.org/viewtopic.php?id=183190
While at it also add missing documentation for the u value for usb-storage
quirks.
Cc: stable@vger.kernel.org # 3.16, 3.17
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
--
Changes in v2: Add documentation for new t and u usb-storage.quirks flags
Changes in v3: Fix typo in documentation
Changes in v4: Also apply the quirk to (0bc2:3312)
Changes in v5: Rebased on 3.17-rc5, drop u documentation, already upstream
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb_usual.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 9b7de1b46437..d271f88f30ad 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -73,6 +73,8 @@
/* Device advertises UAS but it is broken */ \
US_FLAG(BROKEN_FUA, 0x01000000) \
/* Cannot handle FUA in WRITE or READ CDBs */ \
+ US_FLAG(NO_ATA_1X, 0x02000000) \
+ /* Cannot handle ATA_12 or ATA_16 CDBs */ \
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };
--
cgit v1.2.1
From 734016b00b50a3c6a0e1fc1b7b217e783f5123a1 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 16 Sep 2014 18:36:52 +0200
Subject: uas: Add no-report-opcodes quirk
Besides the ASM1051 (*) needing sdev->no_report_opcodes = 1, it turns out that
the JMicron JMS567 also needs it to work properly with uas (usb-storage always
sets it). Since some of the scsi devs were not to keen on the idea to
outrightly set sdev->no_report_opcodes = 1 for all uas devices, so add a quirk
for this, and set it for the JMS567.
*) Which has become a non-issue since we've completely blacklisted uas on
the ASM1051 for other reasons
Cc: stable@vger.kernel.org
Reported-and-tested-by: Claudio Bizzarri <claudio.bizzarri@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb_usual.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index d271f88f30ad..a7f2604c5f25 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -75,6 +75,8 @@
/* Cannot handle FUA in WRITE or READ CDBs */ \
US_FLAG(NO_ATA_1X, 0x02000000) \
/* Cannot handle ATA_12 or ATA_16 CDBs */ \
+ US_FLAG(NO_REPORT_OPCODES, 0x04000000) \
+ /* Cannot handle MI_REPORT_SUPPORTED_OPERATION_CODES */ \
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };
--
cgit v1.2.1
From ddbe1fca0bcb87ca8c199ea873a456ca8a948567 Mon Sep 17 00:00:00 2001
From: Lu Baolu <baolu.lu@linux.intel.com>
Date: Fri, 19 Sep 2014 10:13:50 +0800
Subject: USB: Add device quirk for ASUS T100 Base Station keyboard
This full-speed USB device generates spurious remote wakeup event
as soon as USB_DEVICE_REMOTE_WAKEUP feature is set. As the result,
Linux can't enter system suspend and S0ix power saving modes once
this keyboard is used.
This patch tries to introduce USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk.
With this quirk set, wakeup capability will be ignored during
device configure.
This patch could be back-ported to kernels as old as 2.6.39.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/quirks.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index ffe565c94743..a4abaeb3fb00 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -44,4 +44,7 @@
/* device can't handle device_qualifier descriptor requests */
#define USB_QUIRK_DEVICE_QUALIFIER 0x00000100
+/* device generates spurious wakeup, ignore remote wakeup capability */
+#define USB_QUIRK_IGNORE_REMOTE_WAKEUP 0x00000200
+
#endif /* __LINUX_USB_QUIRKS_H */
--
cgit v1.2.1
From 5cb307c4c27a9f37ef0c8e6bedc8c53c9197f48f Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 23 Sep 2014 22:23:55 -0700
Subject: USB: quirks.h: use BIT()
Use the BIT macro instead of "open coding" bit fields. This makes it
easier to actually see that the bits are not conflicting/overlapping.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/quirks.h | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index a4abaeb3fb00..9948c874e3f1 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -8,27 +8,27 @@
#define __LINUX_USB_QUIRKS_H
/* string descriptors must not be fetched using a 255-byte read */
-#define USB_QUIRK_STRING_FETCH_255 0x00000001
+#define USB_QUIRK_STRING_FETCH_255 BIT(0)
/* device can't resume correctly so reset it instead */
-#define USB_QUIRK_RESET_RESUME 0x00000002
+#define USB_QUIRK_RESET_RESUME BIT(1)
/* device can't handle Set-Interface requests */
-#define USB_QUIRK_NO_SET_INTF 0x00000004
+#define USB_QUIRK_NO_SET_INTF BIT(2)
/* device can't handle its Configuration or Interface strings */
-#define USB_QUIRK_CONFIG_INTF_STRINGS 0x00000008
+#define USB_QUIRK_CONFIG_INTF_STRINGS BIT(3)
/* device can't be reset(e.g morph devices), don't use reset */
-#define USB_QUIRK_RESET 0x00000010
+#define USB_QUIRK_RESET BIT(4)
/* device has more interface descriptions than the bNumInterfaces count,
and can't handle talking to these interfaces */
-#define USB_QUIRK_HONOR_BNUMINTERFACES 0x00000020
+#define USB_QUIRK_HONOR_BNUMINTERFACES BIT(5)
/* device needs a pause during initialization, after we read the device
descriptor */
-#define USB_QUIRK_DELAY_INIT 0x00000040
+#define USB_QUIRK_DELAY_INIT BIT(6)
/*
* For high speed and super speed interupt endpoints, the USB 2.0 and
@@ -39,12 +39,12 @@
* Devices with this quirk report their bInterval as the result of this
* calculation instead of the exponent variable used in the calculation.
*/
-#define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL 0x00000080
+#define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL BIT(7)
/* device can't handle device_qualifier descriptor requests */
-#define USB_QUIRK_DEVICE_QUALIFIER 0x00000100
+#define USB_QUIRK_DEVICE_QUALIFIER BIT(8)
/* device generates spurious wakeup, ignore remote wakeup capability */
-#define USB_QUIRK_IGNORE_REMOTE_WAKEUP 0x00000200
+#define USB_QUIRK_IGNORE_REMOTE_WAKEUP BIT(9)
#endif /* __LINUX_USB_QUIRKS_H */
--
cgit v1.2.1
From 833c95456a70826d1384883b73fd23aff24d366f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 12 Sep 2014 09:01:56 +0200
Subject: device coredump: add new device coredump class
Many devices run firmware and/or complex hardware, and most of that
can have bugs. When it misbehaves, however, it is often much harder
to debug than software running on the host.
Introduce a "device coredump" mechanism to allow dumping internal
device/firmware state through a generalized mechanism. As devices
are different and information needed can vary accordingly, this
doesn't prescribe a file format - it just provides mechanism to
get data to be able to capture it in a generalized way (e.g. in
distributions.)
The dumped data will be readable in sysfs in the virtual device's
data file under /sys/class/devcoredump/devcd*/. Writing to it will
free the data and remove the device, as does a 5-minute timeout.
Note that generalized capturing of such data may result in privacy
issues, so users generally need to be involved. In order to allow
certain users/system integrators/... to disable the feature at all,
introduce a Kconfig option to override the drivers that would like
to have the feature.
For now, this provides two ways of dumping data:
1) with a vmalloc'ed area, that is then given to the subsystem
and freed after retrieval or timeout
2) with a generalized reader/free function method
We could/should add more options, e.g. a list of pages, since the
vmalloc area is very limited on some architectures.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/devcoredump.h | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
create mode 100644 include/linux/devcoredump.h
(limited to 'include')
diff --git a/include/linux/devcoredump.h b/include/linux/devcoredump.h
new file mode 100644
index 000000000000..c0a360e99f64
--- /dev/null
+++ b/include/linux/devcoredump.h
@@ -0,0 +1,35 @@
+#ifndef __DEVCOREDUMP_H
+#define __DEVCOREDUMP_H
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+
+#ifdef CONFIG_DEV_COREDUMP
+void dev_coredumpv(struct device *dev, const void *data, size_t datalen,
+ gfp_t gfp);
+
+void dev_coredumpm(struct device *dev, struct module *owner,
+ const void *data, size_t datalen, gfp_t gfp,
+ ssize_t (*read)(char *buffer, loff_t offset, size_t count,
+ const void *data, size_t datalen),
+ void (*free)(const void *data));
+#else
+static inline void dev_coredumpv(struct device *dev, const void *data,
+ size_t datalen, gfp_t gfp)
+{
+ vfree(data);
+}
+
+static inline void
+dev_coredumpm(struct device *dev, struct module *owner,
+ const void *data, size_t datalen, gfp_t gfp,
+ ssize_t (*read)(char *buffer, loff_t offset, size_t count,
+ const void *data, size_t datalen),
+ void (*free)(const void *data))
+{
+ free(data);
+}
+#endif /* CONFIG_DEV_COREDUMP */
+
+#endif /* __DEVCOREDUMP_H */
--
cgit v1.2.1
From 36c53b3cc3fac6952af68f43609b15ae050c9318 Mon Sep 17 00:00:00 2001
From: Federico Vaga <federico.vaga@cern.ch>
Date: Tue, 2 Sep 2014 17:31:40 +0200
Subject: ipack: save carrier owner to allow device to get it
There was not any kind of protection against carrier driver removal.
In this way, device driver can 'get' the carrier driver when it is
using it.
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/ipack.h | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ipack.h b/include/linux/ipack.h
index 1888e06ddf64..8bddc3fbdddf 100644
--- a/include/linux/ipack.h
+++ b/include/linux/ipack.h
@@ -172,6 +172,7 @@ struct ipack_bus_ops {
* @ops: bus operations for the mezzanine drivers
*/
struct ipack_bus_device {
+ struct module *owner;
struct device *parent;
int slots;
int bus_nr;
@@ -189,7 +190,8 @@ struct ipack_bus_device {
* available bus device in ipack.
*/
struct ipack_bus_device *ipack_bus_register(struct device *parent, int slots,
- const struct ipack_bus_ops *ops);
+ const struct ipack_bus_ops *ops,
+ struct module *owner);
/**
* ipack_bus_unregister -- unregister an ipack bus
@@ -265,3 +267,23 @@ void ipack_put_device(struct ipack_device *dev);
.format = (_format), \
.vendor = (vend), \
.device = (dev)
+
+/**
+ * ipack_get_carrier - it increase the carrier ref. counter of
+ * the carrier module
+ * @dev: mezzanine device which wants to get the carrier
+ */
+static inline int ipack_get_carrier(struct ipack_device *dev)
+{
+ return try_module_get(dev->bus->owner);
+}
+
+/**
+ * ipack_get_carrier - it decrease the carrier ref. counter of
+ * the carrier module
+ * @dev: mezzanine device which wants to get the carrier
+ */
+static inline void ipack_put_carrier(struct ipack_device *dev)
+{
+ module_put(dev->bus->owner);
+}
--
cgit v1.2.1
From ffdbb715fa0c53203b1ea2a6ecc54bdcc8951612 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 28 Aug 2014 14:14:09 +0100
Subject: misc: st_kim: Increase size of dev_name buffer to incorporate
termination
Calling strncpy with a maximum size argument of 32 bytes on destination
array kim_gdata->dev_name of size 32 bytes might leave the destination
string unterminated.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/ti_wilink_st.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h
index 932b76392248..884d6263e962 100644
--- a/include/linux/ti_wilink_st.h
+++ b/include/linux/ti_wilink_st.h
@@ -268,7 +268,7 @@ struct kim_data_s {
struct st_data_s *core_data;
struct chip_version version;
unsigned char ldisc_install;
- unsigned char dev_name[UART_DEV_NAME_LEN];
+ unsigned char dev_name[UART_DEV_NAME_LEN + 1];
unsigned char flow_cntrl;
unsigned long baud_rate;
};
--
cgit v1.2.1
From 26d8f6f15112b8b0fbff360c360e8c42bf2bc370 Mon Sep 17 00:00:00 2001
From: Frank Haverkamp <haver@linux.vnet.ibm.com>
Date: Wed, 10 Sep 2014 16:37:48 +0200
Subject: GenWQE: Update author information
Updated email address of co-author.
Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Signed-off-by: Michael Jung <mijung@gmx.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/genwqe/genwqe_card.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/genwqe/genwqe_card.h b/include/uapi/linux/genwqe/genwqe_card.h
index 4fc065f29255..baa93fb4cd4f 100644
--- a/include/uapi/linux/genwqe/genwqe_card.h
+++ b/include/uapi/linux/genwqe/genwqe_card.h
@@ -8,7 +8,7 @@
*
* Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
* Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
- * Author: Michael Jung <mijung@de.ibm.com>
+ * Author: Michael Jung <mijung@gmx.net>
* Author: Michael Ruettger <michael@ibmra.de>
*
* This program is free software; you can redistribute it and/or modify
--
cgit v1.2.1
From bc5a5b02331a3175a5fca20a4beba249e573b672 Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Tue, 2 Sep 2014 19:21:47 -0700
Subject: Drivers: hv: util: Properly pack the data for file copy functionality
Properly pack the data for file copy functionality. Patch based on
investigation done by Matej Muzila <mmuzila@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reported-by: <qge@redhat.com>
Cc: <stable@vger.kernel.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/hyperv.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/hyperv.h b/include/uapi/linux/hyperv.h
index 78e4a86030dd..0a8e6badb29b 100644
--- a/include/uapi/linux/hyperv.h
+++ b/include/uapi/linux/hyperv.h
@@ -137,7 +137,7 @@ struct hv_do_fcopy {
__u64 offset;
__u32 size;
__u8 data[DATA_FRAGMENT];
-};
+} __attribute__((packed));
/*
* An implementation of HyperV key value pair (KVP) functionality for Linux.
--
cgit v1.2.1
From bef59c5024be687ef4f228915af9961307a779ab Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Wed, 20 Aug 2014 15:26:35 +0200
Subject: devres: Improve devm_kasprintf()/kvasprintf() support
- Add devm_kasprintf()/kvasprintf(), introduced by commit
75f2a4ead5d5890ada9c2663a70fb58613c0d9f2 ("devres: Add
devm_kasprintf and devm_kvasprintf API"), to
Documentation/driver-model/devres.txt,
- Improve kernel doc: the string is not an existing formatted string,
but is formatted into the newly-allocated buffer,
- Add a __printf() annotation to devm_kasprintf(), so the compiler
will verify the format string argument types.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/device.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/device.h b/include/linux/device.h
index 43d183aeb25b..a608e237f0a8 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -607,8 +607,8 @@ extern int devres_release_group(struct device *dev, void *id);
extern void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp);
extern char *devm_kvasprintf(struct device *dev, gfp_t gfp, const char *fmt,
va_list ap);
-extern char *devm_kasprintf(struct device *dev, gfp_t gfp,
- const char *fmt, ...);
+extern __printf(3, 4)
+char *devm_kasprintf(struct device *dev, gfp_t gfp, const char *fmt, ...);
static inline void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp)
{
return devm_kmalloc(dev, size, gfp | __GFP_ZERO);
--
cgit v1.2.1
From 2b0bf6c85a4940e00516f68ff7103329abf8512d Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 22 Sep 2014 11:17:41 -0700
Subject: Bluetooth: Convert bt_<level> logging functions to return void
No caller or macro uses the return value so make all
the functions return void.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/bluetooth.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 7e666d06b97f..58695ffeb138 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -120,9 +120,9 @@ struct bt_voice {
#define BT_RCVMTU 13
__printf(1, 2)
-int bt_info(const char *fmt, ...);
+void bt_info(const char *fmt, ...);
__printf(1, 2)
-int bt_err(const char *fmt, ...);
+void bt_err(const char *fmt, ...);
#define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
#define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
--
cgit v1.2.1
From 295494af0695bc190e6b939df1036af898c2856f Mon Sep 17 00:00:00 2001
From: Octavian Purdila <octavian.purdila@intel.com>
Date: Fri, 19 Sep 2014 23:22:44 +0300
Subject: gpiolib: add irq_not_threaded flag to gpio_chip
Some GPIO chips (e.g. the DLN2 USB adapter) have blocking get/set
operation but do not need a threaded irq handler.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/gpio/driver.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 560bf7fa614f..719fab209158 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -56,6 +56,8 @@ struct seq_file;
* as the chip access may sleep when e.g. reading out the IRQ status
* registers.
* @exported: flags if the gpiochip is exported for use from sysfs. Private.
+ * @irq_not_threaded: flag must be set if @can_sleep is set but the
+ * IRQs don't need to be threaded
*
* A gpio_chip can help platforms abstract various sources of GPIOs so
* they can all be accessed through a common programing interface.
@@ -101,6 +103,7 @@ struct gpio_chip {
struct gpio_desc *desc;
const char *const *names;
bool can_sleep;
+ bool irq_not_threaded;
bool exported;
#ifdef CONFIG_GPIOLIB_IRQCHIP
--
cgit v1.2.1
From 8af465db967bf25a4617416c0cbaaaa506d444f5 Mon Sep 17 00:00:00 2001
From: Roger Tseng <rogerable@realtek.com>
Date: Wed, 24 Sep 2014 17:07:13 +0800
Subject: mmc: core: Add new power_mode MMC_POWER_UNDEFINED
Add MMC_POWER_UNDEFINED for power_mode in struct mmc_ios and use it as
the initial value of host->ios.power_mode.
For hosts with MMC_CAP2_NO_PRESCAN_POWERUP, this makes the later
mmc_power_off() do real power-off things instead of NOP, and further
prevents state messed up in cards that was already initialized (eg. by
BIOS of UEFI driver).
Signed-off-by: Roger Tseng <rogerable@realtek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/host.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 797ae657dc3d..df0c15396bbf 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -42,6 +42,7 @@ struct mmc_ios {
#define MMC_POWER_OFF 0
#define MMC_POWER_UP 1
#define MMC_POWER_ON 2
+#define MMC_POWER_UNDEFINED 3
unsigned char bus_width; /* data bus width */
--
cgit v1.2.1
From db4fa45ed3182d8206af241811dfc99369ffa849 Mon Sep 17 00:00:00 2001
From: Anders Berg <anders.berg@avagotech.com>
Date: Wed, 17 Sep 2014 08:46:58 +0200
Subject: spi: pl022: Add support for chip select extension
Add support for a extended PL022 which has an extra register for controlling up
to five chip select signals. This controller is found on the AXM5516 SoC.
Unfortunately the PrimeCell identification registers are identical to a
standard ARM PL022. To work around this, the peripheral ID must be overridden
in the device tree using the "arm,primecell-periphid" property with the value
0x000b6022.
Signed-off-by: Anders Berg <anders.berg@avagotech.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/amba/bus.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index fdd7e1b61f60..c324f5700d1a 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -44,10 +44,15 @@ struct amba_driver {
const struct amba_id *id_table;
};
+/*
+ * Constants for the designer field of the Peripheral ID register. When bit 7
+ * is set to '1', bits [6:0] should be the JEP106 manufacturer identity code.
+ */
enum amba_vendor {
AMBA_VENDOR_ARM = 0x41,
AMBA_VENDOR_ST = 0x80,
AMBA_VENDOR_QCOM = 0x51,
+ AMBA_VENDOR_LSI = 0xb6,
};
extern struct bus_type amba_bustype;
--
cgit v1.2.1
From d41c15cf95bd91b9c333f6f749670e22c8a47ad9 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 24 Sep 2014 13:14:46 +0300
Subject: Bluetooth: Fix reason code used for rejecting SCO connections
The core specification defines valid values for the
HCI_Reject_Synchronous_Connection_Request command to be 0x0D-0x0F. So
far the code has been using HCI_ERROR_REMOTE_USER_TERM (0x13) which is
not a valid value and is therefore being rejected by some controllers:
> HCI Event: Connect Request (0x04) plen 10
bdaddr 40:6F:2A:6A:E5:E0 class 0x000000 type eSCO
< HCI Command: Reject Synchronous Connection (0x01|0x002a) plen 7
bdaddr 40:6F:2A:6A:E5:E0 reason 0x13
Reason: Remote User Terminated Connection
> HCI Event: Command Status (0x0f) plen 4
Reject Synchronous Connection (0x01|0x002a) status 0x12 ncmd 1
Error: Invalid HCI Command Parameters
This patch introduces a new define for a value from the valid range
(0x0d == Connection Rejected Due To Limited Resources) and uses it
instead for rejecting incoming connections.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 3f8547f1c6f8..6e8f24967308 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -385,6 +385,7 @@ enum {
#define HCI_ERROR_AUTH_FAILURE 0x05
#define HCI_ERROR_MEMORY_EXCEEDED 0x07
#define HCI_ERROR_CONNECTION_TIMEOUT 0x08
+#define HCI_ERROR_REJ_LIMITED_RESOURCES 0x0d
#define HCI_ERROR_REJ_BAD_ADDR 0x0f
#define HCI_ERROR_REMOTE_USER_TERM 0x13
#define HCI_ERROR_REMOTE_LOW_RESOURCES 0x14
--
cgit v1.2.1
From 234b239bea395316d7f78018c672f4a88b3cdf0d Mon Sep 17 00:00:00 2001
From: Andres Lagar-Cavilla <andreslc@google.com>
Date: Wed, 17 Sep 2014 10:51:48 -0700
Subject: kvm: Faults which trigger IO release the mmap_sem
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
When KVM handles a tdp fault it uses FOLL_NOWAIT. If the guest memory
has been swapped out or is behind a filemap, this will trigger async
readahead and return immediately. The rationale is that KVM will kick
back the guest with an "async page fault" and allow for some other
guest process to take over.
If async PFs are enabled the fault is retried asap from an async
workqueue. If not, it's retried immediately in the same code path. In
either case the retry will not relinquish the mmap semaphore and will
block on the IO. This is a bad thing, as other mmap semaphore users
now stall as a function of swap or filemap latency.
This patch ensures both the regular and async PF path re-enter the
fault allowing for the mmap semaphore to be relinquished in the case
of IO wait.
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Andres Lagar-Cavilla <andreslc@google.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 11 +++++++++++
include/linux/mm.h | 1 +
2 files changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index d44a2d640551..45aaeb3360c9 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -198,6 +198,17 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva,
int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu);
#endif
+/*
+ * Carry out a gup that requires IO. Allow the mm to relinquish the mmap
+ * semaphore if the filemap/swap has to wait on a page lock. pagep == NULL
+ * controls whether we retry the gup one more time to completion in that case.
+ * Typically this is called after a FAULT_FLAG_RETRY_NOWAIT in the main tdp
+ * handler.
+ */
+int kvm_get_user_page_io(struct task_struct *tsk, struct mm_struct *mm,
+ unsigned long addr, bool write_fault,
+ struct page **pagep);
+
enum {
OUTSIDE_GUEST_MODE,
IN_GUEST_MODE,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8981cc882ed2..0f4196a0bc20 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1985,6 +1985,7 @@ static inline struct page *follow_page(struct vm_area_struct *vma,
#define FOLL_HWPOISON 0x100 /* check page is hwpoisoned */
#define FOLL_NUMA 0x200 /* force NUMA hinting page fault */
#define FOLL_MIGRATION 0x400 /* wait for page to replace migration entry */
+#define FOLL_TRIED 0x800 /* a retry, previous pass started an IO */
typedef int (*pte_fn_t)(pte_t *pte, pgtable_t token, unsigned long addr,
void *data);
--
cgit v1.2.1
From 8a9522d2fe6a1b643d3aef5ab7f097f73c601e7a Mon Sep 17 00:00:00 2001
From: Andres Lagar-Cavilla <andreslc@google.com>
Date: Tue, 23 Sep 2014 12:34:54 -0700
Subject: kvm/x86/mmu: Pass gfn and level to rmapp callback.
Callbacks don't have to do extra computation to learn what the caller
(lvm_handle_hva_range()) knows very well. Useful for
debugging/tracing/printk/future.
Signed-off-by: Andres Lagar-Cavilla <andreslc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/trace/events/kvm.h | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index ab679c395042..6edf1f2028cd 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -225,24 +225,26 @@ TRACE_EVENT(kvm_fpu,
);
TRACE_EVENT(kvm_age_page,
- TP_PROTO(ulong hva, struct kvm_memory_slot *slot, int ref),
- TP_ARGS(hva, slot, ref),
+ TP_PROTO(ulong gfn, int level, struct kvm_memory_slot *slot, int ref),
+ TP_ARGS(gfn, level, slot, ref),
TP_STRUCT__entry(
__field( u64, hva )
__field( u64, gfn )
+ __field( u8, level )
__field( u8, referenced )
),
TP_fast_assign(
- __entry->hva = hva;
- __entry->gfn =
- slot->base_gfn + ((hva - slot->userspace_addr) >> PAGE_SHIFT);
+ __entry->gfn = gfn;
+ __entry->level = level;
+ __entry->hva = ((gfn - slot->base_gfn) <<
+ PAGE_SHIFT) + slot->userspace_addr;
__entry->referenced = ref;
),
- TP_printk("hva %llx gfn %llx %s",
- __entry->hva, __entry->gfn,
+ TP_printk("hva %llx gfn %llx level %u %s",
+ __entry->hva, __entry->gfn, __entry->level,
__entry->referenced ? "YOUNG" : "OLD")
);
--
cgit v1.2.1
From 57128468080a8b6ea452223036d3e417f748af55 Mon Sep 17 00:00:00 2001
From: Andres Lagar-Cavilla <andreslc@google.com>
Date: Mon, 22 Sep 2014 14:54:42 -0700
Subject: kvm: Fix page ageing bugs
1. We were calling clear_flush_young_notify in unmap_one, but we are
within an mmu notifier invalidate range scope. The spte exists no more
(due to range_start) and the accessed bit info has already been
propagated (due to kvm_pfn_set_accessed). Simply call
clear_flush_young.
2. We clear_flush_young on a primary MMU PMD, but this may be mapped
as a collection of PTEs by the secondary MMU (e.g. during log-dirty).
This required expanding the interface of the clear_flush_young mmu
notifier, so a lot of code has been trivially touched.
3. In the absence of shadow_accessed_mask (e.g. EPT A bit), we emulate
the access bit by blowing the spte. This requires proper synchronizing
with MMU notifier consumers, like every other removal of spte's does.
Signed-off-by: Andres Lagar-Cavilla <andreslc@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/mmu_notifier.h | 24 +++++++++++++++++-------
1 file changed, 17 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 27288692241e..88787bb4b3b9 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -57,10 +57,13 @@ struct mmu_notifier_ops {
* pte. This way the VM will provide proper aging to the
* accesses to the page through the secondary MMUs and not
* only to the ones through the Linux pte.
+ * Start-end is necessary in case the secondary MMU is mapping the page
+ * at a smaller granularity than the primary MMU.
*/
int (*clear_flush_young)(struct mmu_notifier *mn,
struct mm_struct *mm,
- unsigned long address);
+ unsigned long start,
+ unsigned long end);
/*
* test_young is called to check the young/accessed bitflag in
@@ -175,7 +178,8 @@ extern void mmu_notifier_unregister_no_release(struct mmu_notifier *mn,
extern void __mmu_notifier_mm_destroy(struct mm_struct *mm);
extern void __mmu_notifier_release(struct mm_struct *mm);
extern int __mmu_notifier_clear_flush_young(struct mm_struct *mm,
- unsigned long address);
+ unsigned long start,
+ unsigned long end);
extern int __mmu_notifier_test_young(struct mm_struct *mm,
unsigned long address);
extern void __mmu_notifier_change_pte(struct mm_struct *mm,
@@ -194,10 +198,11 @@ static inline void mmu_notifier_release(struct mm_struct *mm)
}
static inline int mmu_notifier_clear_flush_young(struct mm_struct *mm,
- unsigned long address)
+ unsigned long start,
+ unsigned long end)
{
if (mm_has_notifiers(mm))
- return __mmu_notifier_clear_flush_young(mm, address);
+ return __mmu_notifier_clear_flush_young(mm, start, end);
return 0;
}
@@ -255,7 +260,9 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm)
unsigned long ___address = __address; \
__young = ptep_clear_flush_young(___vma, ___address, __ptep); \
__young |= mmu_notifier_clear_flush_young(___vma->vm_mm, \
- ___address); \
+ ___address, \
+ ___address + \
+ PAGE_SIZE); \
__young; \
})
@@ -266,7 +273,9 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm)
unsigned long ___address = __address; \
__young = pmdp_clear_flush_young(___vma, ___address, __pmdp); \
__young |= mmu_notifier_clear_flush_young(___vma->vm_mm, \
- ___address); \
+ ___address, \
+ ___address + \
+ PMD_SIZE); \
__young; \
})
@@ -301,7 +310,8 @@ static inline void mmu_notifier_release(struct mm_struct *mm)
}
static inline int mmu_notifier_clear_flush_young(struct mm_struct *mm,
- unsigned long address)
+ unsigned long start,
+ unsigned long end)
{
return 0;
}
--
cgit v1.2.1
From 445b8236959bfe624a5aa9bce89f44a3bec9b2b1 Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Wed, 24 Sep 2014 15:57:55 +0800
Subject: kvm: Rename make_all_cpus_request() to kvm_make_all_cpus_request()
and make it non-static
Different architectures need different requests, and in fact we
will use this function in architecture-specific code later. This
will be outside kvm_main.c, so make it non-static and rename it to
kvm_make_all_cpus_request().
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 45aaeb3360c9..12c591fc2571 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -586,6 +586,7 @@ void kvm_flush_remote_tlbs(struct kvm *kvm);
void kvm_reload_remote_mmus(struct kvm *kvm);
void kvm_make_mclock_inprogress_request(struct kvm *kvm);
void kvm_make_scan_ioapic_request(struct kvm *kvm);
+bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req);
long kvm_arch_dev_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg);
--
cgit v1.2.1
From 4256f43f9fab91e1c17b5846a240cf4b66a768a8 Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Wed, 24 Sep 2014 15:57:54 +0800
Subject: kvm: x86: Add request bit to reload APIC access page address
Currently, the APIC access page is pinned by KVM for the entire life
of the guest. We want to make it migratable in order to make memory
hot-unplug available for machines that run KVM.
This patch prepares to handle this in generic code, through a new
request bit (that will be set by the MMU notifier) and a new hook
that is called whenever the request bit is processed.
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 12c591fc2571..d594f9f34429 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -136,6 +136,7 @@ static inline bool is_error_page(struct page *page)
#define KVM_REQ_GLOBAL_CLOCK_UPDATE 22
#define KVM_REQ_ENABLE_IBS 23
#define KVM_REQ_DISABLE_IBS 24
+#define KVM_REQ_APIC_PAGE_RELOAD 25
#define KVM_USERSPACE_IRQ_SOURCE_ID 0
#define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID 1
--
cgit v1.2.1
From 72bbf0af0c76cbefe9cecbd2ed670b7555e03625 Mon Sep 17 00:00:00 2001
From: Damien Lespiau <damien.lespiau@intel.com>
Date: Wed, 13 Feb 2013 15:27:37 +0000
Subject: drm/i915/skl: Add the Skylake PCI ids
v2: Squash in 2nd patch from Damien for more ids (Daniel)
v3: info->has*ring -> info->ring_mask conversion. Also add VEBOX support.
v4: Fold in update from Damien
v5: Rebase and add GEN_DEFAULT_PIPEOFFSETS
v6: Add more PCI ID (Vandana)
v7: Rebase and add IVB_CURSOR_OFFSETS
v8: Renamed the macro from _PCI_IDS to _IDS for consistency
Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/i915_pciids.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
(limited to 'include')
diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
index a70d45647898..180ad0e6de21 100644
--- a/include/drm/i915_pciids.h
+++ b/include/drm/i915_pciids.h
@@ -259,4 +259,21 @@
INTEL_VGA_DEVICE(0x22b2, info), \
INTEL_VGA_DEVICE(0x22b3, info)
+#define INTEL_SKL_IDS(info) \
+ INTEL_VGA_DEVICE(0x1916, info), /* ULT GT2 */ \
+ INTEL_VGA_DEVICE(0x1906, info), /* ULT GT1 */ \
+ INTEL_VGA_DEVICE(0x1926, info), /* ULT GT3 */ \
+ INTEL_VGA_DEVICE(0x1921, info), /* ULT GT2F */ \
+ INTEL_VGA_DEVICE(0x190E, info), /* ULX GT1 */ \
+ INTEL_VGA_DEVICE(0x191E, info), /* ULX GT2 */ \
+ INTEL_VGA_DEVICE(0x1912, info), /* DT GT2 */ \
+ INTEL_VGA_DEVICE(0x1902, info), /* DT GT1 */ \
+ INTEL_VGA_DEVICE(0x191B, info), /* Halo GT2 */ \
+ INTEL_VGA_DEVICE(0x192B, info), /* Halo GT3 */ \
+ INTEL_VGA_DEVICE(0x190B, info), /* Halo GT1 */ \
+ INTEL_VGA_DEVICE(0x191A, info), /* SRV GT2 */ \
+ INTEL_VGA_DEVICE(0x192A, info), /* SRV GT3 */ \
+ INTEL_VGA_DEVICE(0x190A, info), /* SRV GT1 */ \
+ INTEL_VGA_DEVICE(0x191D, info) /* WKS GT2 */
+
#endif /* _I915_PCIIDS_H */
--
cgit v1.2.1
From 25cc24c200dcba21bd1f1a59a01741185062dc0e Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 12 Sep 2014 08:53:53 +0200
Subject: mfd: max14577: Add defines for MAX77836 charger
Prepare for adding support for MAX77836 charger to the max14577 charger
driver by adding necessary new defines and prefixes to existing ones.
The MAX77836 uses slightly different values for ChgTyp field of STATUS2
register. On the MAX14577 value of 0x6 is reserved and 0x7 dead battery.
On the MAX77836 the opposite:
- 0x6 means special charger,
- 0x7 is reserved.
Regardless of these differences use one common enum
max14577_muic_charger_type.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/mfd/max14577-private.h | 54 ++++++++++++++++++++++++++----------
1 file changed, 40 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/mfd/max14577-private.h b/include/linux/mfd/max14577-private.h
index 499253604026..d6f321699b89 100644
--- a/include/linux/mfd/max14577-private.h
+++ b/include/linux/mfd/max14577-private.h
@@ -72,15 +72,33 @@ enum max14577_muic_reg {
MAX14577_MUIC_REG_END,
};
+/*
+ * Combined charger types for max14577 and max77836.
+ *
+ * On max14577 three lower bits map to STATUS2/CHGTYP field.
+ * However the max77836 has different two last values of STATUS2/CHGTYP.
+ * To indicate the difference enum has two additional values for max77836.
+ * These values are just a register value bitwise OR with 0x8.
+ */
enum max14577_muic_charger_type {
- MAX14577_CHARGER_TYPE_NONE = 0,
- MAX14577_CHARGER_TYPE_USB,
- MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT,
- MAX14577_CHARGER_TYPE_DEDICATED_CHG,
- MAX14577_CHARGER_TYPE_SPECIAL_500MA,
- MAX14577_CHARGER_TYPE_SPECIAL_1A,
- MAX14577_CHARGER_TYPE_RESERVED,
- MAX14577_CHARGER_TYPE_DEAD_BATTERY = 7,
+ MAX14577_CHARGER_TYPE_NONE = 0x0,
+ MAX14577_CHARGER_TYPE_USB = 0x1,
+ MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT = 0x2,
+ MAX14577_CHARGER_TYPE_DEDICATED_CHG = 0x3,
+ MAX14577_CHARGER_TYPE_SPECIAL_500MA = 0x4,
+ /* Special 1A or 2A charger */
+ MAX14577_CHARGER_TYPE_SPECIAL_1A = 0x5,
+ /* max14577: reserved, used on max77836 */
+ MAX14577_CHARGER_TYPE_RESERVED = 0x6,
+ /* max14577: dead-battery charing with maximum current 100mA */
+ MAX14577_CHARGER_TYPE_DEAD_BATTERY = 0x7,
+ /*
+ * max77836: special charger (bias on D+/D-),
+ * matches register value of 0x6
+ */
+ MAX77836_CHARGER_TYPE_SPECIAL_BIAS = 0xe,
+ /* max77836: reserved, register value 0x7 */
+ MAX77836_CHARGER_TYPE_RESERVED = 0xf,
};
/* MAX14577 interrupts */
@@ -121,13 +139,15 @@ enum max14577_muic_charger_type {
#define STATUS2_CHGTYP_SHIFT 0
#define STATUS2_CHGDETRUN_SHIFT 3
#define STATUS2_DCDTMR_SHIFT 4
-#define STATUS2_DBCHG_SHIFT 5
+#define MAX14577_STATUS2_DBCHG_SHIFT 5
+#define MAX77836_STATUS2_DXOVP_SHIFT 5
#define STATUS2_VBVOLT_SHIFT 6
#define MAX77836_STATUS2_VIDRM_SHIFT 7
#define STATUS2_CHGTYP_MASK (0x7 << STATUS2_CHGTYP_SHIFT)
#define STATUS2_CHGDETRUN_MASK BIT(STATUS2_CHGDETRUN_SHIFT)
#define STATUS2_DCDTMR_MASK BIT(STATUS2_DCDTMR_SHIFT)
-#define STATUS2_DBCHG_MASK BIT(STATUS2_DBCHG_SHIFT)
+#define MAX14577_STATUS2_DBCHG_MASK BIT(MAX14577_STATUS2_DBCHG_SHIFT)
+#define MAX77836_STATUS2_DXOVP_MASK BIT(MAX77836_STATUS2_DXOVP_SHIFT)
#define STATUS2_VBVOLT_MASK BIT(STATUS2_VBVOLT_SHIFT)
#define MAX77836_STATUS2_VIDRM_MASK BIT(MAX77836_STATUS2_VIDRM_SHIFT)
@@ -177,9 +197,11 @@ enum max14577_muic_charger_type {
#define CTRL3_JIGSET_SHIFT 0
#define CTRL3_BOOTSET_SHIFT 2
#define CTRL3_ADCDBSET_SHIFT 4
+#define CTRL3_WBTH_SHIFT 6
#define CTRL3_JIGSET_MASK (0x3 << CTRL3_JIGSET_SHIFT)
#define CTRL3_BOOTSET_MASK (0x3 << CTRL3_BOOTSET_SHIFT)
#define CTRL3_ADCDBSET_MASK (0x3 << CTRL3_ADCDBSET_SHIFT)
+#define CTRL3_WBTH_MASK (0x3 << CTRL3_WBTH_SHIFT)
/* Slave addr = 0x4A: Charger */
enum max14577_charger_reg {
@@ -210,16 +232,20 @@ enum max14577_charger_reg {
#define CDETCTRL1_CHGTYPMAN_SHIFT 1
#define CDETCTRL1_DCDEN_SHIFT 2
#define CDETCTRL1_DCD2SCT_SHIFT 3
-#define CDETCTRL1_DCHKTM_SHIFT 4
-#define CDETCTRL1_DBEXIT_SHIFT 5
+#define MAX14577_CDETCTRL1_DCHKTM_SHIFT 4
+#define MAX77836_CDETCTRL1_CDLY_SHIFT 4
+#define MAX14577_CDETCTRL1_DBEXIT_SHIFT 5
+#define MAX77836_CDETCTRL1_DCDCPL_SHIFT 5
#define CDETCTRL1_DBIDLE_SHIFT 6
#define CDETCTRL1_CDPDET_SHIFT 7
#define CDETCTRL1_CHGDETEN_MASK BIT(CDETCTRL1_CHGDETEN_SHIFT)
#define CDETCTRL1_CHGTYPMAN_MASK BIT(CDETCTRL1_CHGTYPMAN_SHIFT)
#define CDETCTRL1_DCDEN_MASK BIT(CDETCTRL1_DCDEN_SHIFT)
#define CDETCTRL1_DCD2SCT_MASK BIT(CDETCTRL1_DCD2SCT_SHIFT)
-#define CDETCTRL1_DCHKTM_MASK BIT(CDETCTRL1_DCHKTM_SHIFT)
-#define CDETCTRL1_DBEXIT_MASK BIT(CDETCTRL1_DBEXIT_SHIFT)
+#define MAX14577_CDETCTRL1_DCHKTM_MASK BIT(MAX14577_CDETCTRL1_DCHKTM_SHIFT)
+#define MAX77836_CDETCTRL1_CDDLY_MASK BIT(MAX77836_CDETCTRL1_CDDLY_SHIFT)
+#define MAX14577_CDETCTRL1_DBEXIT_MASK BIT(MAX14577_CDETCTRL1_DBEXIT_SHIFT)
+#define MAX77836_CDETCTRL1_DCDCPL_MASK BIT(MAX77836_CDETCTRL1_DCDCPL_SHIFT)
#define CDETCTRL1_DBIDLE_MASK BIT(CDETCTRL1_DBIDLE_SHIFT)
#define CDETCTRL1_CDPDET_MASK BIT(CDETCTRL1_CDPDET_SHIFT)
--
cgit v1.2.1
From 521e8bac67a71a6544274f39d5c61473e0e54ac0 Mon Sep 17 00:00:00 2001
From: Stephane Eranian <eranian@google.com>
Date: Wed, 17 Sep 2014 11:06:16 +0200
Subject: perf/x86/intel/uncore: Update support for client uncore IMC PMU
This patch restructures the memory controller (IMC) uncore PMU support
for client SNB/IVB/HSW processors. The main change is that it can now
cope with more than one PCI device ID per processor model. There are
many flavors of memory controllers for each processor. They have
different PCI device ID, yet they behave the same w.r.t. the memory
controller PMU that we are interested in.
The patch now supports two distinct memory controllers for IVB
processors: one for mobile, one for desktop.
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20140917090616.GA11281@quad
Cc: ak@linux.intel.com
Cc: kan.liang@intel.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/pci_ids.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 6ed0bb73a864..3102b7e3b460 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2536,6 +2536,7 @@
#define PCI_DEVICE_ID_INTEL_EESSC 0x0008
#define PCI_DEVICE_ID_INTEL_SNB_IMC 0x0100
#define PCI_DEVICE_ID_INTEL_IVB_IMC 0x0154
+#define PCI_DEVICE_ID_INTEL_IVB_E3_IMC 0x0150
#define PCI_DEVICE_ID_INTEL_HSW_IMC 0x0c00
#define PCI_DEVICE_ID_INTEL_PXHD_0 0x0320
#define PCI_DEVICE_ID_INTEL_PXHD_1 0x0321
--
cgit v1.2.1
From 41f93af900a20d1a0a358b522b5129c89677e9dc Mon Sep 17 00:00:00 2001
From: Sandeep Nair <sandeep_n@ti.com>
Date: Fri, 28 Feb 2014 10:47:50 -0500
Subject: soc: ti: add Keystone Navigator QMSS driver
The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of
the main hardware sub system which forms the backbone of the Keystone
Multi-core Navigator. QMSS consist of queue managers, packed-data structure
processors(PDSP), linking RAM, descriptor pools and infrastructure
Packet DMA.
The Queue Manager is a hardware module that is responsible for accelerating
management of the packet queues. Packets are queued/de-queued by writing or
reading descriptor address to a particular memory mapped location. The PDSPs
perform QMSS related functions like accumulation, QoS, or event management.
Linking RAM registers are used to link the descriptors which are stored in
descriptor RAM. Descriptor RAM is configurable as internal or external memory.
The QMSS driver manages the PDSP setups, linking RAM regions,
queue pool management (allocation, push, pop and notify) and descriptor
pool management. The specifics on the device tree bindings for
QMSS can be found in:
Documentation/devicetree/bindings/soc/keystone-navigator-qmss.txt
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sandeep Nair <sandeep_n@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
include/linux/soc/ti/knav_qmss.h | 90 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 90 insertions(+)
create mode 100644 include/linux/soc/ti/knav_qmss.h
(limited to 'include')
diff --git a/include/linux/soc/ti/knav_qmss.h b/include/linux/soc/ti/knav_qmss.h
new file mode 100644
index 000000000000..9f0ebb3bad27
--- /dev/null
+++ b/include/linux/soc/ti/knav_qmss.h
@@ -0,0 +1,90 @@
+/*
+ * Keystone Navigator Queue Management Sub-System header
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
+ * Author: Sandeep Nair <sandeep_n@ti.com>
+ * Cyril Chemparathy <cyril@ti.com>
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __SOC_TI_KNAV_QMSS_H__
+#define __SOC_TI_KNAV_QMSS_H__
+
+#include <linux/err.h>
+#include <linux/time.h>
+#include <linux/atomic.h>
+#include <linux/device.h>
+#include <linux/fcntl.h>
+#include <linux/dma-mapping.h>
+
+/* queue types */
+#define KNAV_QUEUE_QPEND ((unsigned)-2) /* interruptible qpend queue */
+#define KNAV_QUEUE_ACC ((unsigned)-3) /* Accumulated queue */
+#define KNAV_QUEUE_GP ((unsigned)-4) /* General purpose queue */
+
+/* queue flags */
+#define KNAV_QUEUE_SHARED 0x0001 /* Queue can be shared */
+
+/**
+ * enum knav_queue_ctrl_cmd - queue operations.
+ * @KNAV_QUEUE_GET_ID: Get the ID number for an open queue
+ * @KNAV_QUEUE_FLUSH: forcibly empty a queue if possible
+ * @KNAV_QUEUE_SET_NOTIFIER: Set a notifier callback to a queue handle.
+ * @KNAV_QUEUE_ENABLE_NOTIFY: Enable notifier callback for a queue handle.
+ * @KNAV_QUEUE_DISABLE_NOTIFY: Disable notifier callback for a queue handle.
+ * @KNAV_QUEUE_GET_COUNT: Get number of queues.
+ */
+enum knav_queue_ctrl_cmd {
+ KNAV_QUEUE_GET_ID,
+ KNAV_QUEUE_FLUSH,
+ KNAV_QUEUE_SET_NOTIFIER,
+ KNAV_QUEUE_ENABLE_NOTIFY,
+ KNAV_QUEUE_DISABLE_NOTIFY,
+ KNAV_QUEUE_GET_COUNT
+};
+
+/* Queue notifier callback prototype */
+typedef void (*knav_queue_notify_fn)(void *arg);
+
+/**
+ * struct knav_queue_notify_config: Notifier configuration
+ * @fn: Notifier function
+ * @fn_arg: Notifier function arguments
+ */
+struct knav_queue_notify_config {
+ knav_queue_notify_fn fn;
+ void *fn_arg;
+};
+
+void *knav_queue_open(const char *name, unsigned id,
+ unsigned flags);
+void knav_queue_close(void *qhandle);
+int knav_queue_device_control(void *qhandle,
+ enum knav_queue_ctrl_cmd cmd,
+ unsigned long arg);
+dma_addr_t knav_queue_pop(void *qhandle, unsigned *size);
+int knav_queue_push(void *qhandle, dma_addr_t dma,
+ unsigned size, unsigned flags);
+
+void *knav_pool_create(const char *name,
+ int num_desc, int region_id);
+void knav_pool_destroy(void *ph);
+int knav_pool_count(void *ph);
+void *knav_pool_desc_get(void *ph);
+void knav_pool_desc_put(void *ph, void *desc);
+int knav_pool_desc_map(void *ph, void *desc, unsigned size,
+ dma_addr_t *dma, unsigned *dma_sz);
+void *knav_pool_desc_unmap(void *ph, dma_addr_t dma, unsigned dma_sz);
+dma_addr_t knav_pool_desc_virt_to_dma(void *ph, void *virt);
+void *knav_pool_desc_dma_to_virt(void *ph, dma_addr_t dma);
+
+#endif /* __SOC_TI_KNAV_QMSS_H__ */
--
cgit v1.2.1
From 88139ed030583557751e279968e13e892ae10825 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Sun, 30 Mar 2014 17:29:04 -0400
Subject: soc: ti: add Keystone Navigator DMA support
The Keystone Navigator DMA driver sets up the dma channels and flows for
the QMSS(Queue Manager SubSystem) who triggers the actual data movements
across clients using destination queues. Every client modules like
NETCP(Network Coprocessor), SRIO(Serial Rapid IO) and CRYPTO
Engines has its own instance of packet dma hardware. QMSS has also
an internal packet DMA module which is used as an infrastructure
DMA with zero copy.
Initially this driver was proposed as DMA engine driver but since the
hardware is not typical DMA engine and hence doesn't comply with typical
DMA engine driver needs, that approach was naked. Link to that
discussion -
https://lkml.org/lkml/2014/3/18/340
As aligned, now we pair the Navigator DMA with its companion Navigator
QMSS subsystem driver.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sandeep Nair <sandeep_n@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
include/linux/soc/ti/knav_dma.h | 175 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 175 insertions(+)
create mode 100644 include/linux/soc/ti/knav_dma.h
(limited to 'include')
diff --git a/include/linux/soc/ti/knav_dma.h b/include/linux/soc/ti/knav_dma.h
new file mode 100644
index 000000000000..e864a3eb9ac4
--- /dev/null
+++ b/include/linux/soc/ti/knav_dma.h
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2014 Texas Instruments Incorporated
+ * Authors: Sandeep Nair <sandeep_n@ti.com
+ * Cyril Chemparathy <cyril@ti.com
+ Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __SOC_TI_KEYSTONE_NAVIGATOR_DMA_H__
+#define __SOC_TI_KEYSTONE_NAVIGATOR_DMA_H__
+
+/*
+ * PKTDMA descriptor manipulation macros for host packet descriptor
+ */
+#define MASK(x) (BIT(x) - 1)
+#define KNAV_DMA_DESC_PKT_LEN_MASK MASK(22)
+#define KNAV_DMA_DESC_PKT_LEN_SHIFT 0
+#define KNAV_DMA_DESC_PS_INFO_IN_SOP BIT(22)
+#define KNAV_DMA_DESC_PS_INFO_IN_DESC 0
+#define KNAV_DMA_DESC_TAG_MASK MASK(8)
+#define KNAV_DMA_DESC_SAG_HI_SHIFT 24
+#define KNAV_DMA_DESC_STAG_LO_SHIFT 16
+#define KNAV_DMA_DESC_DTAG_HI_SHIFT 8
+#define KNAV_DMA_DESC_DTAG_LO_SHIFT 0
+#define KNAV_DMA_DESC_HAS_EPIB BIT(31)
+#define KNAV_DMA_DESC_NO_EPIB 0
+#define KNAV_DMA_DESC_PSLEN_SHIFT 24
+#define KNAV_DMA_DESC_PSLEN_MASK MASK(6)
+#define KNAV_DMA_DESC_ERR_FLAG_SHIFT 20
+#define KNAV_DMA_DESC_ERR_FLAG_MASK MASK(4)
+#define KNAV_DMA_DESC_PSFLAG_SHIFT 16
+#define KNAV_DMA_DESC_PSFLAG_MASK MASK(4)
+#define KNAV_DMA_DESC_RETQ_SHIFT 0
+#define KNAV_DMA_DESC_RETQ_MASK MASK(14)
+#define KNAV_DMA_DESC_BUF_LEN_MASK MASK(22)
+
+#define KNAV_DMA_NUM_EPIB_WORDS 4
+#define KNAV_DMA_NUM_PS_WORDS 16
+#define KNAV_DMA_FDQ_PER_CHAN 4
+
+/* Tx channel scheduling priority */
+enum knav_dma_tx_priority {
+ DMA_PRIO_HIGH = 0,
+ DMA_PRIO_MED_H,
+ DMA_PRIO_MED_L,
+ DMA_PRIO_LOW
+};
+
+/* Rx channel error handling mode during buffer starvation */
+enum knav_dma_rx_err_mode {
+ DMA_DROP = 0,
+ DMA_RETRY
+};
+
+/* Rx flow size threshold configuration */
+enum knav_dma_rx_thresholds {
+ DMA_THRESH_NONE = 0,
+ DMA_THRESH_0 = 1,
+ DMA_THRESH_0_1 = 3,
+ DMA_THRESH_0_1_2 = 7
+};
+
+/* Descriptor type */
+enum knav_dma_desc_type {
+ DMA_DESC_HOST = 0,
+ DMA_DESC_MONOLITHIC = 2
+};
+
+/**
+ * struct knav_dma_tx_cfg: Tx channel configuration
+ * @filt_einfo: Filter extended packet info
+ * @filt_pswords: Filter PS words present
+ * @knav_dma_tx_priority: Tx channel scheduling priority
+ */
+struct knav_dma_tx_cfg {
+ bool filt_einfo;
+ bool filt_pswords;
+ enum knav_dma_tx_priority priority;
+};
+
+/**
+ * struct knav_dma_rx_cfg: Rx flow configuration
+ * @einfo_present: Extended packet info present
+ * @psinfo_present: PS words present
+ * @knav_dma_rx_err_mode: Error during buffer starvation
+ * @knav_dma_desc_type: Host or Monolithic desc
+ * @psinfo_at_sop: PS word located at start of packet
+ * @sop_offset: Start of packet offset
+ * @dst_q: Destination queue for a given flow
+ * @thresh: Rx flow size threshold
+ * @fdq[]: Free desc Queue array
+ * @sz_thresh0: RX packet size threshold 0
+ * @sz_thresh1: RX packet size threshold 1
+ * @sz_thresh2: RX packet size threshold 2
+ */
+struct knav_dma_rx_cfg {
+ bool einfo_present;
+ bool psinfo_present;
+ enum knav_dma_rx_err_mode err_mode;
+ enum knav_dma_desc_type desc_type;
+ bool psinfo_at_sop;
+ unsigned int sop_offset;
+ unsigned int dst_q;
+ enum knav_dma_rx_thresholds thresh;
+ unsigned int fdq[KNAV_DMA_FDQ_PER_CHAN];
+ unsigned int sz_thresh0;
+ unsigned int sz_thresh1;
+ unsigned int sz_thresh2;
+};
+
+/**
+ * struct knav_dma_cfg: Pktdma channel configuration
+ * @sl_cfg: Slave configuration
+ * @tx: Tx channel configuration
+ * @rx: Rx flow configuration
+ */
+struct knav_dma_cfg {
+ enum dma_transfer_direction direction;
+ union {
+ struct knav_dma_tx_cfg tx;
+ struct knav_dma_rx_cfg rx;
+ } u;
+};
+
+/**
+ * struct knav_dma_desc: Host packet descriptor layout
+ * @desc_info: Descriptor information like id, type, length
+ * @tag_info: Flow tag info written in during RX
+ * @packet_info: Queue Manager, policy, flags etc
+ * @buff_len: Buffer length in bytes
+ * @buff: Buffer pointer
+ * @next_desc: For chaining the descriptors
+ * @orig_len: length since 'buff_len' can be overwritten
+ * @orig_buff: buff pointer since 'buff' can be overwritten
+ * @epib: Extended packet info block
+ * @psdata: Protocol specific
+ */
+struct knav_dma_desc {
+ u32 desc_info;
+ u32 tag_info;
+ u32 packet_info;
+ u32 buff_len;
+ u32 buff;
+ u32 next_desc;
+ u32 orig_len;
+ u32 orig_buff;
+ u32 epib[KNAV_DMA_NUM_EPIB_WORDS];
+ u32 psdata[KNAV_DMA_NUM_PS_WORDS];
+ u32 pad[4];
+} ____cacheline_aligned;
+
+#ifdef CONFIG_KEYSTONE_NAVIGATOR_DMA
+void *knav_dma_open_channel(struct device *dev, const char *name,
+ struct knav_dma_cfg *config);
+void knav_dma_close_channel(void *channel);
+#else
+static inline void *knav_dma_open_channel(struct device *dev, const char *name,
+ struct knav_dma_cfg *config)
+{
+ return (void *) NULL;
+}
+static inline void knav_dma_close_channel(void *channel)
+{}
+
+#endif
+
+#endif /* __SOC_TI_KEYSTONE_NAVIGATOR_DMA_H__ */
--
cgit v1.2.1
From b8f139f68f2099b7f8b4ef470a1e53210e3aa025 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 12 Sep 2014 08:53:56 +0200
Subject: regulator/mfd: max14577: Export symbols for calculating charger
current
This patch prepares for changing the max14577 charger driver to allow
configuring battery-dependent settings from DTS.
The patch moves from regulator driver to MFD core driver and exports:
- function for calculating register value for charger's current;
- table of limits for chargers (MAX14577, MAX77836).
Previously they were used only by the max14577 regulator driver. In next
patch the charger driver will use them as well. Exporting them will
reduce unnecessary code duplication.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/max14577-private.h | 22 +++++++++++-----------
include/linux/mfd/max14577.h | 23 +++++++++++++++++++++++
2 files changed, 34 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/mfd/max14577-private.h b/include/linux/mfd/max14577-private.h
index d6f321699b89..7d514839c764 100644
--- a/include/linux/mfd/max14577-private.h
+++ b/include/linux/mfd/max14577-private.h
@@ -281,17 +281,17 @@ enum max14577_charger_reg {
#define CHGCTRL7_OTPCGHCVS_SHIFT 0
#define CHGCTRL7_OTPCGHCVS_MASK (0x3 << CHGCTRL7_OTPCGHCVS_SHIFT)
-/* MAX14577 regulator current limits (as in CHGCTRL4 register), uA */
-#define MAX14577_REGULATOR_CURRENT_LIMIT_MIN 90000
-#define MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_START 200000
-#define MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_STEP 50000
-#define MAX14577_REGULATOR_CURRENT_LIMIT_MAX 950000
-
-/* MAX77836 regulator current limits (as in CHGCTRL4 register), uA */
-#define MAX77836_REGULATOR_CURRENT_LIMIT_MIN 45000
-#define MAX77836_REGULATOR_CURRENT_LIMIT_HIGH_START 100000
-#define MAX77836_REGULATOR_CURRENT_LIMIT_HIGH_STEP 25000
-#define MAX77836_REGULATOR_CURRENT_LIMIT_MAX 475000
+/* MAX14577 charger current limits (as in CHGCTRL4 register), uA */
+#define MAX14577_CHARGER_CURRENT_LIMIT_MIN 90000U
+#define MAX14577_CHARGER_CURRENT_LIMIT_HIGH_START 200000U
+#define MAX14577_CHARGER_CURRENT_LIMIT_HIGH_STEP 50000U
+#define MAX14577_CHARGER_CURRENT_LIMIT_MAX 950000U
+
+/* MAX77836 charger current limits (as in CHGCTRL4 register), uA */
+#define MAX77836_CHARGER_CURRENT_LIMIT_MIN 45000U
+#define MAX77836_CHARGER_CURRENT_LIMIT_HIGH_START 100000U
+#define MAX77836_CHARGER_CURRENT_LIMIT_HIGH_STEP 25000U
+#define MAX77836_CHARGER_CURRENT_LIMIT_MAX 475000U
/* MAX14577 regulator SFOUT LDO voltage, fixed, uV */
#define MAX14577_REGULATOR_SAFEOUT_VOLTAGE 4900000
diff --git a/include/linux/mfd/max14577.h b/include/linux/mfd/max14577.h
index c83fbed1c7b6..3c098d57b1d1 100644
--- a/include/linux/mfd/max14577.h
+++ b/include/linux/mfd/max14577.h
@@ -74,4 +74,27 @@ struct max14577_platform_data {
struct max14577_regulator_platform_data *regulators;
};
+/*
+ * Valid limits of current for max14577 and max77836 chargers.
+ * They must correspond to MBCICHWRCL and MBCICHWRCH fields in CHGCTRL4
+ * register for given chipset.
+ */
+struct maxim_charger_current {
+ /* Minimal current, set in CHGCTRL4/MBCICHWRCL, uA */
+ unsigned int min;
+ /*
+ * Minimal current when high setting is active,
+ * set in CHGCTRL4/MBCICHWRCH, uA
+ */
+ unsigned int high_start;
+ /* Value of one step in high setting, uA */
+ unsigned int high_step;
+ /* Maximum current of high setting, uA */
+ unsigned int max;
+};
+
+extern const struct maxim_charger_current maxim_charger_currents[];
+extern int maxim_charger_calc_reg_current(const struct maxim_charger_current *limits,
+ unsigned int min_ua, unsigned int max_ua, u8 *dst);
+
#endif /* __MAX14577_H__ */
--
cgit v1.2.1
From e30110e9c96f48aea01abc3e6dfadb369cbafec3 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 12 Sep 2014 08:53:57 +0200
Subject: charger: max14577: Configure battery-dependent settings from DTS and
sysfs
Remove hard-coded values for:
- Fast Charge current,
- End Of Charge current,
- Fast Charge timer,
- Overvoltage Protection Threshold,
- Battery Constant Voltage,
and use DTS or sysfs to configure them. This allows using the max14577 charger
driver with different batteries.
Now the charger driver requires valid configuration data from DTS. In
case of wrong configuration data it fails during probe.
The fast charge timer is configured through sysfs entry.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/max14577-private.h | 19 +++++++++++++++++++
include/linux/mfd/max14577.h | 7 +++++++
2 files changed, 26 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/max14577-private.h b/include/linux/mfd/max14577-private.h
index 7d514839c764..f01c1fae4d84 100644
--- a/include/linux/mfd/max14577-private.h
+++ b/include/linux/mfd/max14577-private.h
@@ -293,6 +293,25 @@ enum max14577_charger_reg {
#define MAX77836_CHARGER_CURRENT_LIMIT_HIGH_STEP 25000U
#define MAX77836_CHARGER_CURRENT_LIMIT_MAX 475000U
+/*
+ * MAX14577 charger End-Of-Charge current limits
+ * (as in CHGCTRL5 register), uA
+ */
+#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_MIN 50000U
+#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_STEP 10000U
+#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_MAX 200000U
+
+/*
+ * MAX14577/MAX77836 Battery Constant Voltage
+ * (as in CHGCTRL3 register), uV
+ */
+#define MAXIM_CHARGER_CONSTANT_VOLTAGE_MIN 4000000U
+#define MAXIM_CHARGER_CONSTANT_VOLTAGE_STEP 20000U
+#define MAXIM_CHARGER_CONSTANT_VOLTAGE_MAX 4350000U
+
+/* Default value for fast charge timer, in hours */
+#define MAXIM_CHARGER_FAST_CHARGE_TIMER_DEFAULT 5
+
/* MAX14577 regulator SFOUT LDO voltage, fixed, uV */
#define MAX14577_REGULATOR_SAFEOUT_VOLTAGE 4900000
diff --git a/include/linux/mfd/max14577.h b/include/linux/mfd/max14577.h
index 3c098d57b1d1..ccfaf952c31b 100644
--- a/include/linux/mfd/max14577.h
+++ b/include/linux/mfd/max14577.h
@@ -54,6 +54,13 @@ struct max14577_regulator_platform_data {
struct device_node *of_node;
};
+struct max14577_charger_platform_data {
+ u32 constant_uvolt;
+ u32 fast_charge_uamp;
+ u32 eoc_uamp;
+ u32 ovp_uvolt;
+};
+
/*
* MAX14577 MFD platform data
*/
--
cgit v1.2.1
From 9eca80461a45177e456219a9cd944c27675d6512 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:07:33 -0400
Subject: Revert "blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall
during probe"
This reverts commit 0a30288da1aec914e158c2d7a3482a85f632750f, which
was a temporary fix for SCSI blk-mq stall issue. The following
patches will fix the issue properly by introducing atomic mode to
percpu_ref.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>
---
include/linux/percpu-refcount.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 11b38ceca7e2..5df6784bd9d2 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -72,7 +72,6 @@ void percpu_ref_reinit(struct percpu_ref *ref);
void percpu_ref_exit(struct percpu_ref *ref);
void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
percpu_ref_func_t *confirm_kill);
-void __percpu_ref_kill_expedited(struct percpu_ref *ref);
/**
* percpu_ref_kill - drop the initial ref
--
cgit v1.2.1
From a2237370194484ee6aeeff04b617e4b14d178966 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:48 -0400
Subject: percpu_ref: relocate percpu_ref_reinit()
percpu_ref is gonna go through restructuring. Move
percpu_ref_reinit() after percpu_ref_kill_and_confirm(). This will
make later changes easier to follow and result in cleaner
organization.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
---
include/linux/percpu-refcount.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 5df6784bd9d2..f015f139d491 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -68,10 +68,10 @@ struct percpu_ref {
int __must_check percpu_ref_init(struct percpu_ref *ref,
percpu_ref_func_t *release, gfp_t gfp);
-void percpu_ref_reinit(struct percpu_ref *ref);
void percpu_ref_exit(struct percpu_ref *ref);
void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
percpu_ref_func_t *confirm_kill);
+void percpu_ref_reinit(struct percpu_ref *ref);
/**
* percpu_ref_kill - drop the initial ref
--
cgit v1.2.1
From 6251f9976af7656b6970a8820153f356430f5de2 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:48 -0400
Subject: percpu_ref: minor code and comment updates
* Some comments became stale. Updated.
* percpu_ref_tryget() unnecessarily initializes @ret. Removed.
* A blank line removed from percpu_ref_kill_rcu().
* Explicit function name in a WARN format string replaced with __func__.
* WARN_ON() in percpu_ref_reinit() converted to WARN_ON_ONCE().
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
---
include/linux/percpu-refcount.h | 25 ++++++++++++++++---------
1 file changed, 16 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index f015f139d491..d44b027f74fd 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -115,8 +115,10 @@ static inline bool __pcpu_ref_alive(struct percpu_ref *ref,
* percpu_ref_get - increment a percpu refcount
* @ref: percpu_ref to get
*
- * Analagous to atomic_inc().
- */
+ * Analagous to atomic_long_inc().
+ *
+ * This function is safe to call as long as @ref is between init and exit.
+ */
static inline void percpu_ref_get(struct percpu_ref *ref)
{
unsigned long __percpu *pcpu_count;
@@ -138,12 +140,12 @@ static inline void percpu_ref_get(struct percpu_ref *ref)
* Increment a percpu refcount unless its count already reached zero.
* Returns %true on success; %false on failure.
*
- * The caller is responsible for ensuring that @ref stays accessible.
+ * This function is safe to call as long as @ref is between init and exit.
*/
static inline bool percpu_ref_tryget(struct percpu_ref *ref)
{
unsigned long __percpu *pcpu_count;
- int ret = false;
+ int ret;
rcu_read_lock_sched();
@@ -166,12 +168,13 @@ static inline bool percpu_ref_tryget(struct percpu_ref *ref)
* Increment a percpu refcount unless it has already been killed. Returns
* %true on success; %false on failure.
*
- * Completion of percpu_ref_kill() in itself doesn't guarantee that tryget
- * will fail. For such guarantee, percpu_ref_kill_and_confirm() should be
- * used. After the confirm_kill callback is invoked, it's guaranteed that
- * no new reference will be given out by percpu_ref_tryget().
+ * Completion of percpu_ref_kill() in itself doesn't guarantee that this
+ * function will fail. For such guarantee, percpu_ref_kill_and_confirm()
+ * should be used. After the confirm_kill callback is invoked, it's
+ * guaranteed that no new reference will be given out by
+ * percpu_ref_tryget_live().
*
- * The caller is responsible for ensuring that @ref stays accessible.
+ * This function is safe to call as long as @ref is between init and exit.
*/
static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
{
@@ -196,6 +199,8 @@ static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
*
* Decrement the refcount, and if 0, call the release function (which was passed
* to percpu_ref_init())
+ *
+ * This function is safe to call as long as @ref is between init and exit.
*/
static inline void percpu_ref_put(struct percpu_ref *ref)
{
@@ -216,6 +221,8 @@ static inline void percpu_ref_put(struct percpu_ref *ref)
* @ref: percpu_ref to test
*
* Returns %true if @ref reached zero.
+ *
+ * This function is safe to call as long as @ref is between init and exit.
*/
static inline bool percpu_ref_is_zero(struct percpu_ref *ref)
{
--
cgit v1.2.1
From eecc16ba9a49b05dd847a317af166a6728eb56ca Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:48 -0400
Subject: percpu_ref: replace pcpu_ prefix with percpu_
percpu_ref uses pcpu_ prefix for internal stuff and percpu_ for
externally visible ones. This is the same convention used in the
percpu allocator implementation. It works fine there but percpu_ref
doesn't have too much internal-only stuff and scattered usages of
pcpu_ prefix are confusing than helpful.
This patch replaces all pcpu_ prefixes with percpu_. This is pure
rename and there's no functional change. Note that PCPU_REF_DEAD is
renamed to __PERCPU_REF_DEAD to signify that the flag is internal.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
---
include/linux/percpu-refcount.h | 46 ++++++++++++++++++++---------------------
1 file changed, 23 insertions(+), 23 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index d44b027f74fd..3d463a39e0f7 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -13,7 +13,7 @@
*
* The refcount will have a range of 0 to ((1U << 31) - 1), i.e. one bit less
* than an atomic_t - this is because of the way shutdown works, see
- * percpu_ref_kill()/PCPU_COUNT_BIAS.
+ * percpu_ref_kill()/PERCPU_COUNT_BIAS.
*
* Before you call percpu_ref_kill(), percpu_ref_put() does not check for the
* refcount hitting 0 - it can't, if it was in percpu mode. percpu_ref_kill()
@@ -60,7 +60,7 @@ struct percpu_ref {
* The low bit of the pointer indicates whether the ref is in percpu
* mode; if set, then get/put will manipulate the atomic_t.
*/
- unsigned long pcpu_count_ptr;
+ unsigned long percpu_count_ptr;
percpu_ref_func_t *release;
percpu_ref_func_t *confirm_kill;
struct rcu_head rcu;
@@ -88,26 +88,26 @@ static inline void percpu_ref_kill(struct percpu_ref *ref)
return percpu_ref_kill_and_confirm(ref, NULL);
}
-#define PCPU_REF_DEAD 1
+#define __PERCPU_REF_DEAD 1
/*
* Internal helper. Don't use outside percpu-refcount proper. The
* function doesn't return the pointer and let the caller test it for NULL
* because doing so forces the compiler to generate two conditional
- * branches as it can't assume that @ref->pcpu_count is not NULL.
+ * branches as it can't assume that @ref->percpu_count is not NULL.
*/
-static inline bool __pcpu_ref_alive(struct percpu_ref *ref,
- unsigned long __percpu **pcpu_countp)
+static inline bool __percpu_ref_alive(struct percpu_ref *ref,
+ unsigned long __percpu **percpu_countp)
{
- unsigned long pcpu_ptr = ACCESS_ONCE(ref->pcpu_count_ptr);
+ unsigned long percpu_ptr = ACCESS_ONCE(ref->percpu_count_ptr);
/* paired with smp_store_release() in percpu_ref_reinit() */
smp_read_barrier_depends();
- if (unlikely(pcpu_ptr & PCPU_REF_DEAD))
+ if (unlikely(percpu_ptr & __PERCPU_REF_DEAD))
return false;
- *pcpu_countp = (unsigned long __percpu *)pcpu_ptr;
+ *percpu_countp = (unsigned long __percpu *)percpu_ptr;
return true;
}
@@ -121,12 +121,12 @@ static inline bool __pcpu_ref_alive(struct percpu_ref *ref,
*/
static inline void percpu_ref_get(struct percpu_ref *ref)
{
- unsigned long __percpu *pcpu_count;
+ unsigned long __percpu *percpu_count;
rcu_read_lock_sched();
- if (__pcpu_ref_alive(ref, &pcpu_count))
- this_cpu_inc(*pcpu_count);
+ if (__percpu_ref_alive(ref, &percpu_count))
+ this_cpu_inc(*percpu_count);
else
atomic_long_inc(&ref->count);
@@ -144,13 +144,13 @@ static inline void percpu_ref_get(struct percpu_ref *ref)
*/
static inline bool percpu_ref_tryget(struct percpu_ref *ref)
{
- unsigned long __percpu *pcpu_count;
+ unsigned long __percpu *percpu_count;
int ret;
rcu_read_lock_sched();
- if (__pcpu_ref_alive(ref, &pcpu_count)) {
- this_cpu_inc(*pcpu_count);
+ if (__percpu_ref_alive(ref, &percpu_count)) {
+ this_cpu_inc(*percpu_count);
ret = true;
} else {
ret = atomic_long_inc_not_zero(&ref->count);
@@ -178,13 +178,13 @@ static inline bool percpu_ref_tryget(struct percpu_ref *ref)
*/
static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
{
- unsigned long __percpu *pcpu_count;
+ unsigned long __percpu *percpu_count;
int ret = false;
rcu_read_lock_sched();
- if (__pcpu_ref_alive(ref, &pcpu_count)) {
- this_cpu_inc(*pcpu_count);
+ if (__percpu_ref_alive(ref, &percpu_count)) {
+ this_cpu_inc(*percpu_count);
ret = true;
}
@@ -204,12 +204,12 @@ static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
*/
static inline void percpu_ref_put(struct percpu_ref *ref)
{
- unsigned long __percpu *pcpu_count;
+ unsigned long __percpu *percpu_count;
rcu_read_lock_sched();
- if (__pcpu_ref_alive(ref, &pcpu_count))
- this_cpu_dec(*pcpu_count);
+ if (__percpu_ref_alive(ref, &percpu_count))
+ this_cpu_dec(*percpu_count);
else if (unlikely(atomic_long_dec_and_test(&ref->count)))
ref->release(ref);
@@ -226,9 +226,9 @@ static inline void percpu_ref_put(struct percpu_ref *ref)
*/
static inline bool percpu_ref_is_zero(struct percpu_ref *ref)
{
- unsigned long __percpu *pcpu_count;
+ unsigned long __percpu *percpu_count;
- if (__pcpu_ref_alive(ref, &pcpu_count))
+ if (__percpu_ref_alive(ref, &percpu_count))
return false;
return !atomic_long_read(&ref->count);
}
--
cgit v1.2.1
From 9e804d1f58da1eca079f796347c1cf1d1df564e2 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:48 -0400
Subject: percpu_ref: rename things to prepare for decoupling percpu/atomic
mode switch
percpu_ref will be restructured so that percpu/atomic mode switching
and reference killing are dedoupled. In preparation, do the following
renames.
* percpu_ref->confirm_kill -> percpu_ref->confirm_switch
* __PERCPU_REF_DEAD -> __PERCPU_REF_ATOMIC
* __percpu_ref_alive() -> __ref_is_percpu()
This patch is pure rename and doesn't introduce any functional
changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
---
include/linux/percpu-refcount.h | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 3d463a39e0f7..910e5f72055d 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -54,6 +54,11 @@
struct percpu_ref;
typedef void (percpu_ref_func_t)(struct percpu_ref *);
+/* flags set in the lower bits of percpu_ref->percpu_count_ptr */
+enum {
+ __PERCPU_REF_ATOMIC = 1LU << 0, /* operating in atomic mode */
+};
+
struct percpu_ref {
atomic_long_t count;
/*
@@ -62,7 +67,7 @@ struct percpu_ref {
*/
unsigned long percpu_count_ptr;
percpu_ref_func_t *release;
- percpu_ref_func_t *confirm_kill;
+ percpu_ref_func_t *confirm_switch;
struct rcu_head rcu;
};
@@ -88,23 +93,21 @@ static inline void percpu_ref_kill(struct percpu_ref *ref)
return percpu_ref_kill_and_confirm(ref, NULL);
}
-#define __PERCPU_REF_DEAD 1
-
/*
* Internal helper. Don't use outside percpu-refcount proper. The
* function doesn't return the pointer and let the caller test it for NULL
* because doing so forces the compiler to generate two conditional
* branches as it can't assume that @ref->percpu_count is not NULL.
*/
-static inline bool __percpu_ref_alive(struct percpu_ref *ref,
- unsigned long __percpu **percpu_countp)
+static inline bool __ref_is_percpu(struct percpu_ref *ref,
+ unsigned long __percpu **percpu_countp)
{
unsigned long percpu_ptr = ACCESS_ONCE(ref->percpu_count_ptr);
/* paired with smp_store_release() in percpu_ref_reinit() */
smp_read_barrier_depends();
- if (unlikely(percpu_ptr & __PERCPU_REF_DEAD))
+ if (unlikely(percpu_ptr & __PERCPU_REF_ATOMIC))
return false;
*percpu_countp = (unsigned long __percpu *)percpu_ptr;
@@ -125,7 +128,7 @@ static inline void percpu_ref_get(struct percpu_ref *ref)
rcu_read_lock_sched();
- if (__percpu_ref_alive(ref, &percpu_count))
+ if (__ref_is_percpu(ref, &percpu_count))
this_cpu_inc(*percpu_count);
else
atomic_long_inc(&ref->count);
@@ -149,7 +152,7 @@ static inline bool percpu_ref_tryget(struct percpu_ref *ref)
rcu_read_lock_sched();
- if (__percpu_ref_alive(ref, &percpu_count)) {
+ if (__ref_is_percpu(ref, &percpu_count)) {
this_cpu_inc(*percpu_count);
ret = true;
} else {
@@ -183,7 +186,7 @@ static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
rcu_read_lock_sched();
- if (__percpu_ref_alive(ref, &percpu_count)) {
+ if (__ref_is_percpu(ref, &percpu_count)) {
this_cpu_inc(*percpu_count);
ret = true;
}
@@ -208,7 +211,7 @@ static inline void percpu_ref_put(struct percpu_ref *ref)
rcu_read_lock_sched();
- if (__percpu_ref_alive(ref, &percpu_count))
+ if (__ref_is_percpu(ref, &percpu_count))
this_cpu_dec(*percpu_count);
else if (unlikely(atomic_long_dec_and_test(&ref->count)))
ref->release(ref);
@@ -228,7 +231,7 @@ static inline bool percpu_ref_is_zero(struct percpu_ref *ref)
{
unsigned long __percpu *percpu_count;
- if (__percpu_ref_alive(ref, &percpu_count))
+ if (__ref_is_percpu(ref, &percpu_count))
return false;
return !atomic_long_read(&ref->count);
}
--
cgit v1.2.1
From 27344a9017cdaff82a167827da3001a0918afdc3 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:49 -0400
Subject: percpu_ref: add PCPU_REF_DEAD
percpu_ref will be restructured so that percpu/atomic mode switching
and reference killing are dedoupled. In preparation, add
PCPU_REF_DEAD and PCPU_REF_ATOMIC_DEAD which is OR of ATOMIC and DEAD.
For now, ATOMIC and DEAD are changed together and all PCPU_REF_ATOMIC
uses are converted to PCPU_REF_ATOMIC_DEAD without causing any
behavior changes.
percpu_ref_init() now specifies an explicit alignment when allocating
the percpu counters so that the pointer has enough unused low bits to
accomodate the flags. Note that one flag was fine as min alignment
for percpu memory is 2 bytes but two flags are already too many for
the natural alignment of unsigned longs on archs like cris and m68k.
v2: The original patch had BUILD_BUG_ON() which triggers if unsigned
long's alignment isn't enough to accomodate the flags, which
triggered on cris and m64k. percpu_ref_init() updated to specify
the required alignment explicitly. Reported by Fengguang.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
Cc: kbuild test robot <fengguang.wu@intel.com>
---
include/linux/percpu-refcount.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 910e5f72055d..bd9483d390b4 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -57,6 +57,10 @@ typedef void (percpu_ref_func_t)(struct percpu_ref *);
/* flags set in the lower bits of percpu_ref->percpu_count_ptr */
enum {
__PERCPU_REF_ATOMIC = 1LU << 0, /* operating in atomic mode */
+ __PERCPU_REF_DEAD = 1LU << 1, /* (being) killed */
+ __PERCPU_REF_ATOMIC_DEAD = __PERCPU_REF_ATOMIC | __PERCPU_REF_DEAD,
+
+ __PERCPU_REF_FLAG_BITS = 2,
};
struct percpu_ref {
@@ -107,7 +111,7 @@ static inline bool __ref_is_percpu(struct percpu_ref *ref,
/* paired with smp_store_release() in percpu_ref_reinit() */
smp_read_barrier_depends();
- if (unlikely(percpu_ptr & __PERCPU_REF_ATOMIC))
+ if (unlikely(percpu_ptr & __PERCPU_REF_ATOMIC_DEAD))
return false;
*percpu_countp = (unsigned long __percpu *)percpu_ptr;
--
cgit v1.2.1
From 490c79a65708873228cf114cf00e32c204e4e907 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:49 -0400
Subject: percpu_ref: decouple switching to atomic mode and killing
percpu_ref has treated the dropping of the base reference and
switching to atomic mode as an integral operation; however, there's
nothing inherent tying the two together.
The use cases for percpu_ref have been expanding continuously. While
the current init/kill/reinit/exit model can cover a lot, the coupling
of kill/reinit with atomic/percpu mode switching is turning out to be
too restrictive for use cases where many percpu_refs are created and
destroyed back-to-back with only some of them reaching extended
operation. The coupling also makes implementing always-atomic debug
mode difficult.
This patch separates out atomic mode switching into
percpu_ref_switch_to_atomic() and reimplements
percpu_ref_kill_and_confirm() on top of it.
* The handling of __PERCPU_REF_ATOMIC and __PERCPU_REF_DEAD is now
differentiated. Among get/put operations, percpu_ref_tryget_live()
is the only one which cares about DEAD.
* percpu_ref_switch_to_atomic() can be called multiple times on the
same ref. This means that multiple @confirm_switch may get queued
up which we can't do reliably without extra memory area. This is
handled by making the later invocation synchronously wait for the
completion of the previous one. This isn't particularly desirable
but such synchronous waits shouldn't happen in most cases.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
---
include/linux/percpu-refcount.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index bd9483d390b4..d1252e1335e8 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -78,9 +78,11 @@ struct percpu_ref {
int __must_check percpu_ref_init(struct percpu_ref *ref,
percpu_ref_func_t *release, gfp_t gfp);
void percpu_ref_exit(struct percpu_ref *ref);
+void percpu_ref_switch_to_atomic(struct percpu_ref *ref,
+ percpu_ref_func_t *confirm_switch);
+void percpu_ref_reinit(struct percpu_ref *ref);
void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
percpu_ref_func_t *confirm_kill);
-void percpu_ref_reinit(struct percpu_ref *ref);
/**
* percpu_ref_kill - drop the initial ref
@@ -111,7 +113,7 @@ static inline bool __ref_is_percpu(struct percpu_ref *ref,
/* paired with smp_store_release() in percpu_ref_reinit() */
smp_read_barrier_depends();
- if (unlikely(percpu_ptr & __PERCPU_REF_ATOMIC_DEAD))
+ if (unlikely(percpu_ptr & __PERCPU_REF_ATOMIC))
return false;
*percpu_countp = (unsigned long __percpu *)percpu_ptr;
@@ -193,6 +195,8 @@ static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
if (__ref_is_percpu(ref, &percpu_count)) {
this_cpu_inc(*percpu_count);
ret = true;
+ } else if (!(ACCESS_ONCE(ref->percpu_count_ptr) & __PERCPU_REF_DEAD)) {
+ ret = atomic_long_inc_not_zero(&ref->count);
}
rcu_read_unlock_sched();
--
cgit v1.2.1
From f47ad45784611297b699f3dffb6c7222b76afe64 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:49 -0400
Subject: percpu_ref: decouple switching to percpu mode and reinit
percpu_ref has treated the dropping of the base reference and
switching to atomic mode as an integral operation; however, there's
nothing inherent tying the two together.
The use cases for percpu_ref have been expanding continuously. While
the current init/kill/reinit/exit model can cover a lot, the coupling
of kill/reinit with atomic/percpu mode switching is turning out to be
too restrictive for use cases where many percpu_refs are created and
destroyed back-to-back with only some of them reaching extended
operation. The coupling also makes implementing always-atomic debug
mode difficult.
This patch separates out percpu mode switching into
percpu_ref_switch_to_percpu() and reimplements percpu_ref_reinit() on
top of it.
* DEAD still requires ATOMIC. A dead ref can't be switched to percpu
mode w/o going through reinit.
v2: __percpu_ref_switch_to_percpu() was missing static. Fixed.
Reported by Fengguang aka kbuild test robot.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: kbuild test robot <fengguang.wu@intel.com>
---
include/linux/percpu-refcount.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index d1252e1335e8..cd7e20f0fe47 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -80,9 +80,10 @@ int __must_check percpu_ref_init(struct percpu_ref *ref,
void percpu_ref_exit(struct percpu_ref *ref);
void percpu_ref_switch_to_atomic(struct percpu_ref *ref,
percpu_ref_func_t *confirm_switch);
-void percpu_ref_reinit(struct percpu_ref *ref);
+void percpu_ref_switch_to_percpu(struct percpu_ref *ref);
void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
percpu_ref_func_t *confirm_kill);
+void percpu_ref_reinit(struct percpu_ref *ref);
/**
* percpu_ref_kill - drop the initial ref
--
cgit v1.2.1
From 2aad2a86f6685c10360ec8a5a55eb9ab7059cb72 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:50 -0400
Subject: percpu_ref: add PERCPU_REF_INIT_* flags
With the recent addition of percpu_ref_reinit(), percpu_ref now can be
used as a persistent switch which can be turned on and off repeatedly
where turning off maps to killing the ref and waiting for it to drain;
however, there currently isn't a way to initialize a percpu_ref in its
off (killed and drained) state, which can be inconvenient for certain
persistent switch use cases.
Similarly, percpu_ref_switch_to_atomic/percpu() allow dynamic
selection of operation mode; however, currently a newly initialized
percpu_ref is always in percpu mode making it impossible to avoid the
latency overhead of switching to atomic mode.
This patch adds @flags to percpu_ref_init() and implements the
following flags.
* PERCPU_REF_INIT_ATOMIC : start ref in atomic mode
* PERCPU_REF_INIT_DEAD : start ref killed and drained
These flags should be able to serve the above two use cases.
v2: target_core_tpg.c conversion was missing. Fixed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
---
include/linux/percpu-refcount.h | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index cd7e20f0fe47..b0293f268cd2 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -63,6 +63,21 @@ enum {
__PERCPU_REF_FLAG_BITS = 2,
};
+/* @flags for percpu_ref_init() */
+enum {
+ /*
+ * Start w/ ref == 1 in atomic mode. Can be switched to percpu
+ * operation using percpu_ref_switch_to_percpu().
+ */
+ PERCPU_REF_INIT_ATOMIC = 1 << 0,
+
+ /*
+ * Start dead w/ ref == 0 in atomic mode. Must be revived with
+ * percpu_ref_reinit() before used. Implies INIT_ATOMIC.
+ */
+ PERCPU_REF_INIT_DEAD = 1 << 1,
+};
+
struct percpu_ref {
atomic_long_t count;
/*
@@ -76,7 +91,8 @@ struct percpu_ref {
};
int __must_check percpu_ref_init(struct percpu_ref *ref,
- percpu_ref_func_t *release, gfp_t gfp);
+ percpu_ref_func_t *release, unsigned int flags,
+ gfp_t gfp);
void percpu_ref_exit(struct percpu_ref *ref);
void percpu_ref_switch_to_atomic(struct percpu_ref *ref,
percpu_ref_func_t *confirm_switch);
--
cgit v1.2.1
From 1cae13e75b7a7848c03138636d4eb8d8a5054dd5 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:50 -0400
Subject: percpu_ref: make INIT_ATOMIC and switch_to_atomic() sticky
Currently, a percpu_ref which is initialized with
PERPCU_REF_INIT_ATOMIC or switched to atomic mode via
switch_to_atomic() automatically reverts to percpu mode on the first
percpu_ref_reinit(). This makes the atomic mode difficult to use for
cases where a percpu_ref is used as a persistent on/off switch which
may be cycled multiple times.
This patch makes such atomic state sticky so that it survives through
kill/reinit cycles. After this patch, atomic state is cleared only by
an explicit percpu_ref_switch_to_percpu() call.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
---
include/linux/percpu-refcount.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index b0293f268cd2..00c01fc6d88c 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -67,7 +67,9 @@ enum {
enum {
/*
* Start w/ ref == 1 in atomic mode. Can be switched to percpu
- * operation using percpu_ref_switch_to_percpu().
+ * operation using percpu_ref_switch_to_percpu(). If initialized
+ * with this flag, the ref will stay in atomic mode until
+ * percpu_ref_switch_to_percpu() is invoked on it.
*/
PERCPU_REF_INIT_ATOMIC = 1 << 0,
@@ -87,6 +89,7 @@ struct percpu_ref {
unsigned long percpu_count_ptr;
percpu_ref_func_t *release;
percpu_ref_func_t *confirm_switch;
+ bool force_atomic:1;
struct rcu_head rcu;
};
--
cgit v1.2.1
From 17497acbdce9506fd6a75115dee4ab80c3cc5ee5 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 24 Sep 2014 13:31:50 -0400
Subject: blk-mq, percpu_ref: start q->mq_usage_counter in atomic mode
blk-mq uses percpu_ref for its usage counter which tracks the number
of in-flight commands and used to synchronously drain the queue on
freeze. percpu_ref shutdown takes measureable wallclock time as it
involves a sched RCU grace period. This means that draining a blk-mq
takes measureable wallclock time. One would think that this shouldn't
matter as queue shutdown should be a rare event which takes place
asynchronously w.r.t. userland.
Unfortunately, SCSI probing involves synchronously setting up and then
tearing down a lot of request_queues back-to-back for non-existent
LUNs. This means that SCSI probing may take above ten seconds when
scsi-mq is used.
[ 0.949892] scsi host0: Virtio SCSI HBA
[ 1.007864] scsi 0:0:0:0: Direct-Access QEMU QEMU HARDDISK 1.1. PQ: 0 ANSI: 5
[ 1.021299] scsi 0:0:1:0: Direct-Access QEMU QEMU HARDDISK 1.1. PQ: 0 ANSI: 5
[ 1.520356] tsc: Refined TSC clocksource calibration: 2491.910 MHz
<stall>
[ 16.186549] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 16.190478] sd 0:0:1:0: Attached scsi generic sg1 type 0
[ 16.194099] osd: LOADED open-osd 0.2.1
[ 16.203202] sd 0:0:0:0: [sda] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB)
[ 16.208478] sd 0:0:0:0: [sda] Write Protect is off
[ 16.211439] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 16.218771] sd 0:0:1:0: [sdb] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB)
[ 16.223264] sd 0:0:1:0: [sdb] Write Protect is off
[ 16.225682] sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
This is also the reason why request_queues start in bypass mode which
is ended on blk_register_queue() as shutting down a fully functional
queue also involves a RCU grace period and the queues for non-existent
SCSI devices never reach registration.
blk-mq basically needs to do the same thing - start the mq in a
degraded mode which is faster to shut down and then make it fully
functional only after the queue reaches registration. percpu_ref
recently grew facilities to force atomic operation until explicitly
switched to percpu mode, which can be used for this purpose. This
patch makes blk-mq initialize q->mq_usage_counter in atomic mode and
switch it to percpu mode only once blk_register_queue() is reached.
Note that this issue was previously worked around by 0a30288da1ae
("blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during
probe") for v3.17. The temp fix was reverted in preparation of adding
persistent atomic mode to percpu_ref by 9eca80461a45 ("Revert "blk-mq,
percpu_ref: implement a kludge for SCSI blk-mq stall during probe"").
This patch and the prerequisite percpu_ref changes will be merged
during v3.18 devel cycle.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Christoph Hellwig <hch@infradead.org>
Link: http://lkml.kernel.org/g/20140919113815.GA10791@lst.de
Fixes: add703fda981 ("blk-mq: use percpu_ref for mq usage count")
Reviewed-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Johannes Weiner <hannes@cmpxchg.org>
---
include/linux/blk-mq.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index a1e31f274fcd..c13a0c09faea 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -140,6 +140,7 @@ enum {
};
struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *);
+void blk_mq_finish_init(struct request_queue *q);
int blk_mq_register_disk(struct gendisk *);
void blk_mq_unregister_disk(struct gendisk *);
--
cgit v1.2.1
From 94e57fea62020dbf6e5d0093eabcd28366e86044 Mon Sep 17 00:00:00 2001
From: Francesco Ruggeri <fruggeri@arista.com>
Date: Wed, 24 Sep 2014 10:12:41 -0700
Subject: PCI: Move PCI_VENDOR_ID_VMWARE to pci_ids.h
Move PCI_VENDOR_ID_VMWARE from device-specific files to pci_ids.h.
It is useful to always have access to it, especially when accessing
subsystem_vendor_id on emulated devices.
[bhelgaas: keep pci_ids.h sorted and use lower-case hex]
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/pci_ids.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 6ed0bb73a864..da9e6f753196 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2245,6 +2245,8 @@
#define PCI_VENDOR_ID_MORETON 0x15aa
#define PCI_DEVICE_ID_RASTEL_2PORT 0x2000
+#define PCI_VENDOR_ID_VMWARE 0x15ad
+
#define PCI_VENDOR_ID_ZOLTRIX 0x15b0
#define PCI_DEVICE_ID_ZOLTRIX_2BD0 0x2bd0
--
cgit v1.2.1
From b2fc3f3c6d397d434174147eca3db1ec778195ce Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Wed, 24 Sep 2014 11:42:38 -0700
Subject: drivers/soc: ti: fix build break with modules
Fixes below build break by not switching to stubs when the driver is a module:
drivers/soc/ti/knav_dma.c:418:7: error: redefinition of 'knav_dma_open_channel'
void *knav_dma_open_channel(struct device *dev, const char *name,
^
In file included from drivers/soc/ti/knav_dma.c:26:0:
include/linux/soc/ti/knav_dma.h:165:21: note: previous definition of 'knav_dma_open_channel' was here
static inline void *knav_dma_open_channel(struct device *dev, const char *name,
^
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
include/linux/soc/ti/knav_dma.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/soc/ti/knav_dma.h b/include/linux/soc/ti/knav_dma.h
index e864a3eb9ac4..dad035c16d94 100644
--- a/include/linux/soc/ti/knav_dma.h
+++ b/include/linux/soc/ti/knav_dma.h
@@ -157,7 +157,7 @@ struct knav_dma_desc {
u32 pad[4];
} ____cacheline_aligned;
-#ifdef CONFIG_KEYSTONE_NAVIGATOR_DMA
+#if IS_ENABLED(CONFIG_KEYSTONE_NAVIGATOR_DMA)
void *knav_dma_open_channel(struct device *dev, const char *name,
struct knav_dma_cfg *config);
void knav_dma_close_channel(void *channel);
--
cgit v1.2.1
From 7990da71ebfa887ae6fe4464ab0d99ddeb8efacc Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Wed, 3 Sep 2014 17:49:32 +0200
Subject: PM / QoS: Add PM_QOS_MEMORY_BANDWIDTH class
Also adds a class type PM_QOS_SUM that aggregates the values by summing them.
It can be used by memory controllers to calculate the optimum clock frequency
based on the bandwidth needs of the different memory clients.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_qos.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 9ab4bf7c4646..636e82834506 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -15,6 +15,7 @@ enum {
PM_QOS_CPU_DMA_LATENCY,
PM_QOS_NETWORK_LATENCY,
PM_QOS_NETWORK_THROUGHPUT,
+ PM_QOS_MEMORY_BANDWIDTH,
/* insert new class ID */
PM_QOS_NUM_CLASSES,
@@ -32,6 +33,7 @@ enum pm_qos_flags_status {
#define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC)
#define PM_QOS_NETWORK_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC)
#define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0
+#define PM_QOS_MEMORY_BANDWIDTH_DEFAULT_VALUE 0
#define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE 0
#define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE 0
#define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT (-1)
@@ -69,7 +71,8 @@ struct dev_pm_qos_request {
enum pm_qos_type {
PM_QOS_UNITIALIZED,
PM_QOS_MAX, /* return the largest value */
- PM_QOS_MIN /* return the smallest value */
+ PM_QOS_MIN, /* return the smallest value */
+ PM_QOS_SUM /* return the sum */
};
/*
--
cgit v1.2.1
From a743419f420a64d442280845c0377a915b76644f Mon Sep 17 00:00:00 2001
From: Benjamin Coddington <bcodding@redhat.com>
Date: Tue, 23 Sep 2014 12:26:19 -0400
Subject: SUNRPC: Don't wake tasks during connection abort
When aborting a connection to preserve source ports, don't wake the task in
xs_error_report. This allows tasks with RPC_TASK_SOFTCONN to succeed if the
connection needs to be re-established since it preserves the task's status
instead of setting it to the status of the aborting kernel_connect().
This may also avoid a potential conflict on the socket's lock.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/sunrpc/xprt.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index fcbfe8783243..cf391eef2e6d 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -357,6 +357,7 @@ int xs_swapper(struct rpc_xprt *xprt, int enable);
#define XPRT_CONNECTION_ABORT (7)
#define XPRT_CONNECTION_CLOSE (8)
#define XPRT_CONGESTED (9)
+#define XPRT_CONNECTION_REUSE (10)
static inline void xprt_set_connected(struct rpc_xprt *xprt)
{
--
cgit v1.2.1
From 8478eaa16e701ecfe054b62ec764bc1291b79e19 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 18 Sep 2014 16:09:27 +1000
Subject: NFSv4: use exponential retry on NFS4ERR_DELAY for async requests.
Currently asynchronous NFSv4 request will be retried with
exponential timeout (from 1/10 to 15 seconds), but async
requests will always use a 15second retry.
Some "async" requests are really synchronous though. The
async mechanism is used to allow the request to continue if
the requesting process is killed.
In those cases, an exponential retry is appropriate.
For example, if two different clients both open a file and
get a READ delegation, and one client then unlinks the file
(while still holding an open file descriptor), that unlink
will used the "silly-rename" handling which is async.
The first rename will result in NFS4ERR_DELAY while the
delegation is reclaimed from the other client. The rename
will not be retried for 15 seconds, causing an unlink to take
15 seconds rather than 100msec.
This patch only added exponential timeout for async unlink and
async rename. Other async calls, such as 'close' are sometimes
waited for so they might benefit from exponential timeout too.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs_xdr.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 7ae249ccb78d..6951c7d9097d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1339,6 +1339,7 @@ struct nfs_unlinkdata {
struct inode *dir;
struct rpc_cred *cred;
struct nfs_fattr dir_attr;
+ long timeout;
};
struct nfs_renamedata {
@@ -1352,6 +1353,7 @@ struct nfs_renamedata {
struct dentry *new_dentry;
struct nfs_fattr new_fattr;
void (*complete)(struct rpc_task *, struct nfs_renamedata *);
+ long timeout;
};
struct nfs_access_entry;
--
cgit v1.2.1
From cc952e7017fa2e8871ee6a94f2c606ff5911f61e Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 24 Sep 2014 06:26:21 -0400
Subject: tty: Fix width of unsigned long bitfield padding
Commit c545b66c6922b002b5fe224a6eaec58c913650b5,
'tty: Serialize tcflow() with other tty flow control changes' and
commit 99416322dd16b810ba74098cc50ef2a844091d35,
'tty: Workaround Alpha non-atomic byte storage in tty_struct' work around
compiler bugs and non-atomic storage on multiple arches by padding
bitfields out to the declared type which is unsigned long. However, the
width varies by arch.
Pad bitfields to actual width of unsigned long (which is BITS_PER_LONG).
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 546e94557895..5171ef8f7b85 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -264,11 +264,11 @@ struct tty_struct {
struct winsize winsize; /* winsize_mutex */
unsigned long stopped:1, /* flow_lock */
flow_stopped:1,
- unused:62;
+ unused:BITS_PER_LONG - 2;
int hw_stopped;
unsigned long ctrl_status:8, /* ctrl_lock */
packet:1,
- unused_ctrl:55;
+ unused_ctrl:BITS_PER_LONG - 9;
unsigned int receive_room; /* Bytes free for queue */
int flow_change;
--
cgit v1.2.1
From cbbce82209490df8b68da9aec0d642451fe0a668 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 25 Sep 2014 13:55:19 +1000
Subject: SCHED: add some "wait..on_bit...timeout()" interfaces.
In commit c1221321b7c25b53204447cff9949a6d5a7ddddc
sched: Allow wait_on_bit_action() functions to support a timeout
I suggested that a "wait_on_bit_timeout()" interface would not meet my
need. This isn't true - I was just over-engineering.
Including a 'private' field in wait_bit_key instead of a focused
"timeout" field was just premature generalization. If some other
use is ever found, it can be generalized or added later.
So this patch renames "private" to "timeout" with a meaning "stop
waiting when "jiffies" reaches or passes "timeout",
and adds two of the many possible wait..bit..timeout() interfaces:
wait_on_page_bit_killable_timeout(), which is the one I want to use,
and out_of_line_wait_on_bit_timeout() which is a reasonably general
example. Others can be added as needed.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/pagemap.h | 2 ++
include/linux/wait.h | 5 ++++-
2 files changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 3df8c7db7a4e..87f9e4230d3a 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -502,6 +502,8 @@ static inline int lock_page_or_retry(struct page *page, struct mm_struct *mm,
extern void wait_on_page_bit(struct page *page, int bit_nr);
extern int wait_on_page_bit_killable(struct page *page, int bit_nr);
+extern int wait_on_page_bit_killable_timeout(struct page *page,
+ int bit_nr, unsigned long timeout);
static inline int wait_on_page_locked_killable(struct page *page)
{
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 6fb1ba5f9b2f..80115bf88671 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -25,7 +25,7 @@ struct wait_bit_key {
void *flags;
int bit_nr;
#define WAIT_ATOMIC_T_BIT_NR -1
- unsigned long private;
+ unsigned long timeout;
};
struct wait_bit_queue {
@@ -154,6 +154,7 @@ int __wait_on_bit_lock(wait_queue_head_t *, struct wait_bit_queue *, wait_bit_ac
void wake_up_bit(void *, int);
void wake_up_atomic_t(atomic_t *);
int out_of_line_wait_on_bit(void *, int, wait_bit_action_f *, unsigned);
+int out_of_line_wait_on_bit_timeout(void *, int, wait_bit_action_f *, unsigned, unsigned long);
int out_of_line_wait_on_bit_lock(void *, int, wait_bit_action_f *, unsigned);
int out_of_line_wait_on_atomic_t(atomic_t *, int (*)(atomic_t *), unsigned);
wait_queue_head_t *bit_waitqueue(void *, int);
@@ -859,6 +860,8 @@ int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
extern int bit_wait(struct wait_bit_key *);
extern int bit_wait_io(struct wait_bit_key *);
+extern int bit_wait_timeout(struct wait_bit_key *);
+extern int bit_wait_io_timeout(struct wait_bit_key *);
/**
* wait_on_bit - wait for a bit to be cleared
--
cgit v1.2.1
From a4796e37c12e177572b80864cbab9c907ea250b0 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Wed, 24 Sep 2014 11:28:32 +1000
Subject: MM: export page_wakeup functions
This will allow NFS to wait for PG_private to be cleared and,
particularly, to send a wake-up when it is.
Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/pagemap.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 87f9e4230d3a..2dca0cef3506 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -496,8 +496,8 @@ static inline int lock_page_or_retry(struct page *page, struct mm_struct *mm,
}
/*
- * This is exported only for wait_on_page_locked/wait_on_page_writeback.
- * Never use this directly!
+ * This is exported only for wait_on_page_locked/wait_on_page_writeback,
+ * and for filesystems which need to wait on PG_private.
*/
extern void wait_on_page_bit(struct page *page, int bit_nr);
@@ -512,6 +512,12 @@ static inline int wait_on_page_locked_killable(struct page *page)
return 0;
}
+extern wait_queue_head_t *page_waitqueue(struct page *page);
+static inline void wake_up_page(struct page *page, int bit)
+{
+ __wake_up_bit(page_waitqueue(page), &page->flags, bit);
+}
+
/*
* Wait for a page to be unlocked.
*
--
cgit v1.2.1
From e03f73a01f010b29504ceebda3c4fca25468516d Mon Sep 17 00:00:00 2001
From: Anatol Pomozov <anatol.pomozov@gmail.com>
Date: Wed, 24 Sep 2014 11:17:14 -0700
Subject: ASoC: trace: Remove trailing new-lines in trace messages
These new-lines add empty lines to trace output
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/trace/events/asoc.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h
index 0194a641e4e2..b04ee7e5a466 100644
--- a/include/trace/events/asoc.h
+++ b/include/trace/events/asoc.h
@@ -175,7 +175,7 @@ TRACE_EVENT(snd_soc_dapm_output_path,
__entry->path_sink = (long)path->sink;
),
- TP_printk("%c%s -> %s -> %s\n",
+ TP_printk("%c%s -> %s -> %s",
(int) __entry->path_sink &&
(int) __entry->path_connect ? '*' : ' ',
__get_str(wname), __get_str(pname), __get_str(psname))
@@ -204,7 +204,7 @@ TRACE_EVENT(snd_soc_dapm_input_path,
__entry->path_source = (long)path->source;
),
- TP_printk("%c%s <- %s <- %s\n",
+ TP_printk("%c%s <- %s <- %s",
(int) __entry->path_source &&
(int) __entry->path_connect ? '*' : ' ',
__get_str(wname), __get_str(pname), __get_str(psname))
@@ -226,7 +226,7 @@ TRACE_EVENT(snd_soc_dapm_connected,
__entry->stream = stream;
),
- TP_printk("%s: found %d paths\n",
+ TP_printk("%s: found %d paths",
__entry->stream ? "capture" : "playback", __entry->paths)
);
--
cgit v1.2.1
From 1aed074869a9cbe0a846ea7b254d8fd9a4a4d31f Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Wed, 3 Sep 2014 18:34:04 +0200
Subject: iommu: Convert iommu-caps from define to enum
Allow compile-time type-checking.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/linux/iommu.h | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 20f9a527922a..98fc126655ae 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -57,8 +57,11 @@ struct iommu_domain {
struct iommu_domain_geometry geometry;
};
-#define IOMMU_CAP_CACHE_COHERENCY 0x1
-#define IOMMU_CAP_INTR_REMAP 0x2 /* isolates device intrs */
+enum iommu_cap {
+ IOMMU_CAP_CACHE_COHERENCY, /* IOMMU can enforce cache coherent DMA
+ transactions */
+ IOMMU_CAP_INTR_REMAP, /* IOMMU supports interrupt isolation */
+};
/*
* Following constraints are specifc to FSL_PAMUV1:
@@ -155,7 +158,7 @@ extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
size_t size);
extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova);
extern int iommu_domain_has_cap(struct iommu_domain *domain,
- unsigned long cap);
+ enum iommu_cap cap);
extern void iommu_set_fault_handler(struct iommu_domain *domain,
iommu_fault_handler_t handler, void *token);
@@ -305,7 +308,7 @@ static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_ad
}
static inline int iommu_domain_has_cap(struct iommu_domain *domain,
- unsigned long cap)
+ enum iommu_cap cap)
{
return 0;
}
--
cgit v1.2.1
From 3c0e0ca0a4e757159d868c4870556515d66b6c97 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Wed, 3 Sep 2014 18:47:25 +0200
Subject: iommu: Introduce iommu_capable API function
This function will replace the current iommu_domain_has_cap
function and clean up the interface while at it.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/linux/iommu.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 98fc126655ae..d5534d554693 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -105,6 +105,7 @@ enum iommu_attr {
* @pgsize_bitmap: bitmap of supported page sizes
*/
struct iommu_ops {
+ bool (*capable)(enum iommu_cap);
int (*domain_init)(struct iommu_domain *domain);
void (*domain_destroy)(struct iommu_domain *domain);
int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
@@ -145,6 +146,7 @@ struct iommu_ops {
extern int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops);
extern bool iommu_present(struct bus_type *bus);
+extern bool iommu_capable(struct bus_type *bus, enum iommu_cap cap);
extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus);
extern struct iommu_group *iommu_group_get_by_id(int id);
extern void iommu_domain_free(struct iommu_domain *domain);
@@ -253,6 +255,11 @@ static inline bool iommu_present(struct bus_type *bus)
return false;
}
+static inline bool iommu_capable(struct bus_type *bus, enum iommu_cap cap)
+{
+ return false;
+}
+
static inline struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
{
return NULL;
--
cgit v1.2.1
From 24278a24d88ae730229417e5d3bd452d7545fbcc Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Fri, 5 Sep 2014 10:57:11 +0200
Subject: iommu: Remove iommu_domain_has_cap() API function
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/linux/iommu.h | 11 -----------
1 file changed, 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index d5534d554693..379a6179fd96 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -97,7 +97,6 @@ enum iommu_attr {
* @map: map a physically contiguous memory region to an iommu domain
* @unmap: unmap a physically contiguous memory region from an iommu domain
* @iova_to_phys: translate iova to physical address
- * @domain_has_cap: domain capabilities query
* @add_device: add device to iommu grouping
* @remove_device: remove device from iommu grouping
* @domain_get_attr: Query domain attributes
@@ -115,8 +114,6 @@ struct iommu_ops {
size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
size_t size);
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
- int (*domain_has_cap)(struct iommu_domain *domain,
- unsigned long cap);
int (*add_device)(struct device *dev);
void (*remove_device)(struct device *dev);
int (*device_group)(struct device *dev, unsigned int *groupid);
@@ -159,8 +156,6 @@ extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
size_t size);
extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova);
-extern int iommu_domain_has_cap(struct iommu_domain *domain,
- enum iommu_cap cap);
extern void iommu_set_fault_handler(struct iommu_domain *domain,
iommu_fault_handler_t handler, void *token);
@@ -314,12 +309,6 @@ static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_ad
return 0;
}
-static inline int iommu_domain_has_cap(struct iommu_domain *domain,
- enum iommu_cap cap)
-{
- return 0;
-}
-
static inline void iommu_set_fault_handler(struct iommu_domain *domain,
iommu_fault_handler_t handler, void *token)
{
--
cgit v1.2.1
From 3fc2aa5522ab958374d93ef5d2e12df7ee233c91 Mon Sep 17 00:00:00 2001
From: Michal Sojka <sojka@merica.cz>
Date: Wed, 24 Sep 2014 22:43:18 +0200
Subject: usb: gadget: Introduce usb_gadget_giveback_request()
All USB peripheral controller drivers call completion routines directly.
This patch adds usb_gadget_giveback_request() which will be used instead
of direct invocation in the next patch. The goal here is to have a place
where common functionality can be added.
Signed-off-by: Michal Sojka <sojka@merica.cz>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/gadget.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index d18811433324..522cafe26790 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -1023,6 +1023,14 @@ extern void usb_gadget_udc_reset(struct usb_gadget *gadget,
/*-------------------------------------------------------------------------*/
+/* utility to give requests back to the gadget layer */
+
+extern void usb_gadget_giveback_request(struct usb_ep *ep,
+ struct usb_request *req);
+
+
+/*-------------------------------------------------------------------------*/
+
/* utility wrapping a simple endpoint selection policy */
extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *,
--
cgit v1.2.1
From 0cfbd328d60f85b0dcf66df61a3615e9a8e5d4e4 Mon Sep 17 00:00:00 2001
From: Michal Sojka <sojka@merica.cz>
Date: Wed, 24 Sep 2014 22:43:21 +0200
Subject: usb: Add LED triggers for USB activity
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
With this patch, USB activity can be signaled by blinking a LED. There
are two triggers, one for activity on USB host and one for USB gadget.
Both triggers should work with all host/device controllers. Tested only
with musb.
Performace: I measured performance overheads on ARM Cortex-A8 (TI
AM335x) running on 600 MHz.
Duration of usb_led_activity():
- with no LED attached to the trigger: 2 ± 1 µs
- with one GPIO LED attached to the trigger: 2 ± 1 µs or 8 ± 2 µs (two peaks in histogram)
Duration of functions calling usb_led_activity() (with this patch
applied and no LED attached to the trigger):
- __usb_hcd_giveback_urb(): 10 - 25 µs
- usb_gadget_giveback_request(): 2 - 6 µs
Signed-off-by: Michal Sojka <sojka@merica.cz>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb.h b/include/linux/usb.h
index d2465bc0e73c..447a7e2fc19b 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1862,6 +1862,18 @@ extern void usb_unregister_notify(struct notifier_block *nb);
/* debugfs stuff */
extern struct dentry *usb_debug_root;
+/* LED triggers */
+enum usb_led_event {
+ USB_LED_EVENT_HOST = 0,
+ USB_LED_EVENT_GADGET = 1,
+};
+
+#ifdef CONFIG_USB_LED_TRIG
+extern void usb_led_activity(enum usb_led_event ev);
+#else
+static inline void usb_led_activity(enum usb_led_event ev) {}
+#endif
+
#endif /* __KERNEL__ */
#endif
--
cgit v1.2.1
From 99d440242c08c8a95576c0bc89278f8912f65bda Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Wed, 13 Aug 2014 02:22:37 -0400
Subject: trace, RAS: Replace bare numbers with #defines for PCIe AER error
strings
Replace bare numbers like "BIT(0)" with the existing #defines, e.g.,
PCI_ERR_COR_RCVR, to improve maintainability. This way grep will find more
uses of the #defines.
No functional change.
[bhelgaas: changelog]
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/ras/ras_event.h | 33 +++++++++++++++++----------------
1 file changed, 17 insertions(+), 16 deletions(-)
(limited to 'include')
diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
index 47da53c27ffa..0f2cca4ccbf0 100644
--- a/include/ras/ras_event.h
+++ b/include/ras/ras_event.h
@@ -8,6 +8,7 @@
#include <linux/tracepoint.h>
#include <linux/edac.h>
#include <linux/ktime.h>
+#include <linux/pci.h>
#include <linux/aer.h>
#include <linux/cper.h>
@@ -174,24 +175,24 @@ TRACE_EVENT(mc_event,
*/
#define aer_correctable_errors \
- {BIT(0), "Receiver Error"}, \
- {BIT(6), "Bad TLP"}, \
- {BIT(7), "Bad DLLP"}, \
- {BIT(8), "RELAY_NUM Rollover"}, \
- {BIT(12), "Replay Timer Timeout"}, \
- {BIT(13), "Advisory Non-Fatal"}
+ {PCI_ERR_COR_RCVR, "Receiver Error"}, \
+ {PCI_ERR_COR_BAD_TLP, "Bad TLP"}, \
+ {PCI_ERR_COR_BAD_DLLP, "Bad DLLP"}, \
+ {PCI_ERR_COR_REP_ROLL, "RELAY_NUM Rollover"}, \
+ {PCI_ERR_COR_REP_TIMER, "Replay Timer Timeout"},\
+ {PCI_ERR_COR_ADV_NFAT, "Advisory Non-Fatal"}
#define aer_uncorrectable_errors \
- {BIT(4), "Data Link Protocol"}, \
- {BIT(12), "Poisoned TLP"}, \
- {BIT(13), "Flow Control Protocol"}, \
- {BIT(14), "Completion Timeout"}, \
- {BIT(15), "Completer Abort"}, \
- {BIT(16), "Unexpected Completion"}, \
- {BIT(17), "Receiver Overflow"}, \
- {BIT(18), "Malformed TLP"}, \
- {BIT(19), "ECRC"}, \
- {BIT(20), "Unsupported Request"}
+ {PCI_ERR_UNC_DLP, "Data Link Protocol"}, \
+ {PCI_ERR_UNC_POISON_TLP,"Poisoned TLP"}, \
+ {PCI_ERR_UNC_FCP, "Flow Control Protocol"}, \
+ {PCI_ERR_UNC_COMP_TIME, "Completion Timeout"}, \
+ {PCI_ERR_UNC_COMP_ABORT,"Completer Abort"}, \
+ {PCI_ERR_UNC_UNX_COMP, "Unexpected Completion"}, \
+ {PCI_ERR_UNC_RX_OVER, "Receiver Overflow"}, \
+ {PCI_ERR_UNC_MALF_TLP, "Malformed TLP"}, \
+ {PCI_ERR_UNC_ECRC, "ECRC"}, \
+ {PCI_ERR_UNC_UNSUP, "Unsupported Request"}
TRACE_EVENT(aer_event,
TP_PROTO(const char *dev_name,
--
cgit v1.2.1
From cb9a684acb3d79a5431ac78832148817debf3a06 Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Wed, 13 Aug 2014 02:22:39 -0400
Subject: trace, RAS: Add additional PCIe AER error strings
Add all AER error bits defined in PCIe r3.0.
[bhelgaas: changelog]
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/ras/ras_event.h | 35 ++++++++++++++++++++++-------------
1 file changed, 22 insertions(+), 13 deletions(-)
(limited to 'include')
diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
index 0f2cca4ccbf0..0f04a9755d1e 100644
--- a/include/ras/ras_event.h
+++ b/include/ras/ras_event.h
@@ -174,25 +174,34 @@ TRACE_EVENT(mc_event,
* u8 severity - error severity 0:NONFATAL 1:FATAL 2:CORRECTED
*/
-#define aer_correctable_errors \
- {PCI_ERR_COR_RCVR, "Receiver Error"}, \
- {PCI_ERR_COR_BAD_TLP, "Bad TLP"}, \
- {PCI_ERR_COR_BAD_DLLP, "Bad DLLP"}, \
- {PCI_ERR_COR_REP_ROLL, "RELAY_NUM Rollover"}, \
- {PCI_ERR_COR_REP_TIMER, "Replay Timer Timeout"},\
- {PCI_ERR_COR_ADV_NFAT, "Advisory Non-Fatal"}
-
-#define aer_uncorrectable_errors \
- {PCI_ERR_UNC_DLP, "Data Link Protocol"}, \
+#define aer_correctable_errors \
+ {PCI_ERR_COR_RCVR, "Receiver Error"}, \
+ {PCI_ERR_COR_BAD_TLP, "Bad TLP"}, \
+ {PCI_ERR_COR_BAD_DLLP, "Bad DLLP"}, \
+ {PCI_ERR_COR_REP_ROLL, "RELAY_NUM Rollover"}, \
+ {PCI_ERR_COR_REP_TIMER, "Replay Timer Timeout"}, \
+ {PCI_ERR_COR_ADV_NFAT, "Advisory Non-Fatal Error"}, \
+ {PCI_ERR_COR_INTERNAL, "Corrected Internal Error"}, \
+ {PCI_ERR_COR_LOG_OVER, "Header Log Overflow"}
+
+#define aer_uncorrectable_errors \
+ {PCI_ERR_UNC_TRAIN, "Undefined"}, \
+ {PCI_ERR_UNC_DLP, "Data Link Protocol Error"}, \
+ {PCI_ERR_UNC_SURPDN, "Surprise Down Error"}, \
{PCI_ERR_UNC_POISON_TLP,"Poisoned TLP"}, \
- {PCI_ERR_UNC_FCP, "Flow Control Protocol"}, \
+ {PCI_ERR_UNC_FCP, "Flow Control Protocol Error"}, \
{PCI_ERR_UNC_COMP_TIME, "Completion Timeout"}, \
{PCI_ERR_UNC_COMP_ABORT,"Completer Abort"}, \
{PCI_ERR_UNC_UNX_COMP, "Unexpected Completion"}, \
{PCI_ERR_UNC_RX_OVER, "Receiver Overflow"}, \
{PCI_ERR_UNC_MALF_TLP, "Malformed TLP"}, \
- {PCI_ERR_UNC_ECRC, "ECRC"}, \
- {PCI_ERR_UNC_UNSUP, "Unsupported Request"}
+ {PCI_ERR_UNC_ECRC, "ECRC Error"}, \
+ {PCI_ERR_UNC_UNSUP, "Unsupported Request Error"}, \
+ {PCI_ERR_UNC_ACSV, "ACS Violation"}, \
+ {PCI_ERR_UNC_INTN, "Uncorrectable Internal Error"},\
+ {PCI_ERR_UNC_MCBTLP, "MC Blocked TLP"}, \
+ {PCI_ERR_UNC_ATOMEG, "AtomicOp Egress Blocked"}, \
+ {PCI_ERR_UNC_TLPPRE, "TLP Prefix Blocked Error"}
TRACE_EVENT(aer_event,
TP_PROTO(const char *dev_name,
--
cgit v1.2.1
From 846fc70986a65563a19ae86928c3acf34f12296d Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Wed, 13 Aug 2014 02:22:40 -0400
Subject: PCI/AER: Rename PCI_ERR_UNC_TRAIN to PCI_ERR_UNC_UND
In PCIe r1.0, sec 5.10.2, bit 0 of the Uncorrectable Error Status, Mask,
and Severity Registers was for "Training Error." In PCIe r1.1, sec 7.10.2,
bit 0 was redefined to be "Undefined."
Rename PCI_ERR_UNC_TRAIN to PCI_ERR_UNC_UND to reflect this change.
No functional change.
[bhelgaas: changelog]
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/ras/ras_event.h | 2 +-
include/uapi/linux/pci_regs.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
index 0f04a9755d1e..79abb9c71772 100644
--- a/include/ras/ras_event.h
+++ b/include/ras/ras_event.h
@@ -185,7 +185,7 @@ TRACE_EVENT(mc_event,
{PCI_ERR_COR_LOG_OVER, "Header Log Overflow"}
#define aer_uncorrectable_errors \
- {PCI_ERR_UNC_TRAIN, "Undefined"}, \
+ {PCI_ERR_UNC_UND, "Undefined"}, \
{PCI_ERR_UNC_DLP, "Data Link Protocol Error"}, \
{PCI_ERR_UNC_SURPDN, "Surprise Down Error"}, \
{PCI_ERR_UNC_POISON_TLP,"Poisoned TLP"}, \
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index 30db069bce62..99e3182f2c96 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -630,7 +630,7 @@
/* Advanced Error Reporting */
#define PCI_ERR_UNCOR_STATUS 4 /* Uncorrectable Error Status */
-#define PCI_ERR_UNC_TRAIN 0x00000001 /* Training */
+#define PCI_ERR_UNC_UND 0x00000001 /* Undefined */
#define PCI_ERR_UNC_DLP 0x00000010 /* Data Link Protocol */
#define PCI_ERR_UNC_SURPDN 0x00000020 /* Surprise Down */
#define PCI_ERR_UNC_POISON_TLP 0x00001000 /* Poisoned TLP */
--
cgit v1.2.1
From d79b6fe17aa279c7015a9c4ee88809dad4be9959 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Thu, 25 Sep 2014 18:28:28 +0200
Subject: PM / Domains: Add genpd attach/detach callbacks
While a PM domain can enable PM runtime management of its devices' module
clocks by setting
genpd->dev_ops.stop = pm_clk_suspend;
genpd->dev_ops.start = pm_clk_resume;
this also requires registering the clocks with the pm_clk subsystem.
In the legacy case, this is handled by the platform code, after
attaching the device to its PM domain.
When the devices are instantiated from DT, devices are attached to their
PM domains by generic code, leaving no method for the platform-specific
PM domain code to register their clocks.
Add two callbacks, allowing a PM domain to perform platform-specific
tasks when a device is attached to or detached from a PM domain.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 292079d8da6b..9a93e622bdea 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -73,6 +73,8 @@ struct generic_pm_domain {
bool cached_power_down_ok;
struct device_node *of_node; /* Node in device tree */
struct gpd_cpu_data *cpu_data;
+ void (*attach_dev)(struct device *dev);
+ void (*detach_dev)(struct device *dev);
};
static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)
--
cgit v1.2.1
From 263c589bae9eb404df2c1e8d49ec775bb7b288d4 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 25 Sep 2014 17:49:59 +0200
Subject: PM / Domains: Remove legacy API for adding devices through DT
There are no active clients of the legacy API and we now also have a
better way to handle genpd DT support. So let's remove the legacy API.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 17 -----------------
1 file changed, 17 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 9a93e622bdea..ed4f4a79c528 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -71,7 +71,6 @@ struct generic_pm_domain {
s64 max_off_time_ns; /* Maximum allowed "suspended" time. */
bool max_off_time_changed;
bool cached_power_down_ok;
- struct device_node *of_node; /* Node in device tree */
struct gpd_cpu_data *cpu_data;
void (*attach_dev)(struct device *dev);
void (*detach_dev)(struct device *dev);
@@ -124,10 +123,6 @@ extern int __pm_genpd_add_device(struct generic_pm_domain *genpd,
struct device *dev,
struct gpd_timing_data *td);
-extern int __pm_genpd_of_add_device(struct device_node *genpd_node,
- struct device *dev,
- struct gpd_timing_data *td);
-
extern int __pm_genpd_name_add_device(const char *domain_name,
struct device *dev,
struct gpd_timing_data *td);
@@ -169,12 +164,6 @@ static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
-static inline int __pm_genpd_of_add_device(struct device_node *genpd_node,
- struct device *dev,
- struct gpd_timing_data *td)
-{
- return -ENOSYS;
-}
static inline int __pm_genpd_name_add_device(const char *domain_name,
struct device *dev,
struct gpd_timing_data *td)
@@ -240,12 +229,6 @@ static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
return __pm_genpd_add_device(genpd, dev, NULL);
}
-static inline int pm_genpd_of_add_device(struct device_node *genpd_node,
- struct device *dev)
-{
- return __pm_genpd_of_add_device(genpd_node, dev, NULL);
-}
-
static inline int pm_genpd_name_add_device(const char *domain_name,
struct device *dev)
{
--
cgit v1.2.1
From 7c94e1c157a227837b04f02f5edeff8301410ba2 Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@canonical.com>
Date: Thu, 25 Sep 2014 23:23:43 +0800
Subject: block: introduce blk_flush_queue to drive flush machinery
This patch introduces 'struct blk_flush_queue' and puts all
flush machinery related fields into this structure, so that
- flush implementation details aren't exposed to driver
- it is easy to convert to per dispatch-queue flush machinery
This patch is basically a mechanical replacement.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index e267bf0db559..49f3461e4272 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -36,6 +36,7 @@ struct request;
struct sg_io_hdr;
struct bsg_job;
struct blkcg_gq;
+struct blk_flush_queue;
#define BLKDEV_MIN_RQ 4
#define BLKDEV_MAX_RQ 128 /* Default maximum */
@@ -455,14 +456,7 @@ struct request_queue {
*/
unsigned int flush_flags;
unsigned int flush_not_queueable:1;
- unsigned int flush_queue_delayed:1;
- unsigned int flush_pending_idx:1;
- unsigned int flush_running_idx:1;
- unsigned long flush_pending_since;
- struct list_head flush_queue[2];
- struct list_head flush_data_in_flight;
- struct request *flush_rq;
- spinlock_t mq_flush_lock;
+ struct blk_flush_queue *fq;
struct list_head requeue_list;
spinlock_t requeue_lock;
--
cgit v1.2.1
From f70ced09170761acb69840cafaace4abc72cba4b Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@canonical.com>
Date: Thu, 25 Sep 2014 23:23:47 +0800
Subject: blk-mq: support per-distpatch_queue flush machinery
This patch supports to run one single flush machinery for
each blk-mq dispatch queue, so that:
- current init_request and exit_request callbacks can
cover flush request too, then the buggy copying way of
initializing flush request's pdu can be fixed
- flushing performance gets improved in case of multi hw-queue
In fio sync write test over virtio-blk(4 hw queues, ioengine=sync,
iodepth=64, numjobs=4, bs=4K), it is observed that througput gets
increased a lot over my test environment:
- throughput: +70% in case of virtio-blk over null_blk
- throughput: +30% in case of virtio-blk over SSD image
The multi virtqueue feature isn't merged to QEMU yet, and patches for
the feature can be found in below tree:
git://kernel.ubuntu.com/ming/qemu.git v2.1.0-mq.4
And simply passing 'num_queues=4 vectors=5' should be enough to
enable multi queue(quad queue) feature for QEMU virtio-blk.
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 325349559fb0..02c5d950f444 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -4,6 +4,7 @@
#include <linux/blkdev.h>
struct blk_mq_tags;
+struct blk_flush_queue;
struct blk_mq_cpu_notifier {
struct list_head list;
@@ -34,6 +35,7 @@ struct blk_mq_hw_ctx {
struct request_queue *queue;
unsigned int queue_num;
+ struct blk_flush_queue *fq;
void *driver_data;
@@ -119,6 +121,10 @@ struct blk_mq_ops {
/*
* Called for every command allocated by the block layer to allow
* the driver to set up driver specific data.
+ *
+ * Tag greater than or equal to queue_depth is for setting up
+ * flush request.
+ *
* Ditto for exit/teardown.
*/
init_request_fn *init_request;
--
cgit v1.2.1
From 4b47c3f5f7a330ce953b799872ded7bdc59bfd27 Mon Sep 17 00:00:00 2001
From: Mark yao <mark.yao@rock-chips.com>
Date: Fri, 12 Sep 2014 19:45:27 +0800
Subject: clk: rockchip: rk3288: add reset indices for SOFTRST9-11
The patch add the rest of the indices of the additional reset
registers from the updated TRM.
Signed-off-by: Mark yao <mark.yao@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/rk3288-cru.h | 43 ++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index ebcb460ea4ad..e65d5224e848 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -276,3 +276,46 @@
#define SRST_USBHOST1_CON 140
#define SRST_USB_ADP 141
#define SRST_ACC_EFUSE 142
+
+#define SRST_CORESIGHT 144
+#define SRST_PD_CORE_AHB_NOC 145
+#define SRST_PD_CORE_APB_NOC 146
+#define SRST_PD_CORE_MP_AXI 147
+#define SRST_GIC 148
+#define SRST_LCDC_PWM0 149
+#define SRST_LCDC_PWM1 150
+#define SRST_VIO0_H2P_BRG 151
+#define SRST_VIO1_H2P_BRG 152
+#define SRST_RGA_H2P_BRG 153
+#define SRST_HEVC 154
+#define SRST_TSADC 159
+
+#define SRST_DDRPHY0 160
+#define SRST_DDRPHY0_APB 161
+#define SRST_DDRCTRL0 162
+#define SRST_DDRCTRL0_APB 163
+#define SRST_DDRPHY0_CTRL 164
+#define SRST_DDRPHY1 165
+#define SRST_DDRPHY1_APB 166
+#define SRST_DDRCTRL1 167
+#define SRST_DDRCTRL1_APB 168
+#define SRST_DDRPHY1_CTRL 169
+#define SRST_DDRMSCH0 170
+#define SRST_DDRMSCH1 171
+#define SRST_CRYPTO 174
+#define SRST_C2C_HOST 175
+
+#define SRST_LCDC1_AXI 176
+#define SRST_LCDC1_AHB 177
+#define SRST_LCDC1_DCLK 178
+#define SRST_UART0 179
+#define SRST_UART1 180
+#define SRST_UART2 181
+#define SRST_UART3 182
+#define SRST_UART4 183
+#define SRST_SIMC 186
+#define SRST_PS2C 187
+#define SRST_TSP 188
+#define SRST_TSP_CLKIN0 189
+#define SRST_TSP_CLKIN1 190
+#define SRST_TSP_27M 191
--
cgit v1.2.1
From 5e9a3d70710ef7196170a8feca4aecb73d8eb9c4 Mon Sep 17 00:00:00 2001
From: Kever Yang <kever.yang@rock-chips.com>
Date: Wed, 24 Sep 2014 21:36:34 +0800
Subject: clk: rockchip: add some needed clock binding id for rk3288
This patch add some clock binding id for different modules
that under development and going to send upstream.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/rk3288-cru.h | 38 +++++++++++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index e65d5224e848..750e5587a7aa 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -61,6 +61,15 @@
#define SCLK_LCDC_PWM1 101
#define SCLK_MAC_RX 102
#define SCLK_MAC_TX 103
+#define SCLK_EDP_24M 104
+#define SCLK_EDP 105
+#define SCLK_RGA 106
+#define SCLK_ISP 107
+#define SCLK_ISP_JPE 108
+#define SCLK_HDMI_HDCP 109
+#define SCLK_HDMI_CEC 110
+#define SCLK_HEVC_CABAC 111
+#define SCLK_HEVC_CORE 112
#define DCLK_VOP0 190
#define DCLK_VOP1 191
@@ -75,6 +84,16 @@
#define ACLK_VOP1 198
#define ACLK_CRYPTO 199
#define ACLK_RGA 200
+#define ACLK_RGA_NIU 201
+#define ACLK_IEP 202
+#define ACLK_VIO0_NIU 203
+#define ACLK_VIP 204
+#define ACLK_ISP 205
+#define ACLK_VIO1_NIU 206
+#define ACLK_HEVC 207
+#define ACLK_VCODEC 208
+#define ACLK_CPU 209
+#define ACLK_PERI 210
/* pclk gates */
#define PCLK_GPIO0 320
@@ -112,6 +131,15 @@
#define PCLK_PS2C 352
#define PCLK_TIMER 353
#define PCLK_TZPC 354
+#define PCLK_EDP_CTRL 355
+#define PCLK_MIPI_DSI0 356
+#define PCLK_MIPI_DSI1 357
+#define PCLK_MIPI_CSI 358
+#define PCLK_LVDS_PHY 359
+#define PCLK_HDMI_CTRL 360
+#define PCLK_VIO2_H2P 361
+#define PCLK_CPU 362
+#define PCLK_PERI 363
/* hclk gates */
#define HCLK_GPS 448
@@ -137,8 +165,16 @@
#define HCLK_IEP 468
#define HCLK_ISP 469
#define HCLK_RGA 470
+#define HCLK_VIO_AHB_ARBI 471
+#define HCLK_VIO_NIU 472
+#define HCLK_VIP 473
+#define HCLK_VIO2_H2P 474
+#define HCLK_HEVC 475
+#define HCLK_VCODEC 476
+#define HCLK_CPU 477
+#define HCLK_PERI 478
-#define CLK_NR_CLKS (HCLK_RGA + 1)
+#define CLK_NR_CLKS (HCLK_PERI + 1)
/* soft-reset indices */
#define SRST_CORE0 0
--
cgit v1.2.1
From b52f4914f3be3ff50e7308e3ce03a2ce71195ecc Mon Sep 17 00:00:00 2001
From: Mike Turquette <mturquette@linaro.org>
Date: Mon, 8 Sep 2014 23:11:26 -0700
Subject: asm-generic: COMMON_CLK defines __clk_{get,put}
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
If CONFIG_COMMON_CLK is selected then __clk_get and __clk_put are
defined in drivers/clk/clk.c and declared in include/linux/clkdev.h.
Sylwester's series[0] to properly support clk_{get,put} in the common
clock framework made changes to the asm-specific clkdev.h headers, but
not the asm-generic version. Tomeu's recent changes[1] to introduce a
provider/consumer split in the clock framework uncovered this problem,
causing the following build error on any architecture using the
asm-generic clkdev.h (e.g. x86 architecture and the ACPI LPSS driver):
In file included from drivers/acpi/acpi_lpss.c:15:0:
include/linux/clkdev.h:59:5: error: conflicting types for ‘__clk_get’
int __clk_get(struct clk_core *clk);
^
In file included from arch/x86/include/generated/asm/clkdev.h:1:0,
from include/linux/clkdev.h:15,
from drivers/acpi/acpi_lpss.c:15:
include/asm-generic/clkdev.h:20:19: note: previous definition of ‘__clk_get’ was here
static inline int __clk_get(struct clk *clk) { return 1; }
^
Fixed by only declarating __clk_get and __clk_put when
CONFIG_COMMON_CLK is set.
[0] http://lkml.kernel.org/r/<1386177127-2894-5-git-send-email-s.nawrocki@samsung.com>
[1] http://lkml.kernel.org/r/<1409758148-20104-1-git-send-email-tomeu.vizoso@collabora.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
include/asm-generic/clkdev.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/clkdev.h b/include/asm-generic/clkdev.h
index 90a32a61dd21..4ff334749ed5 100644
--- a/include/asm-generic/clkdev.h
+++ b/include/asm-generic/clkdev.h
@@ -15,10 +15,12 @@
#include <linux/slab.h>
+#ifndef CONFIG_COMMON_CLK
struct clk;
static inline int __clk_get(struct clk *clk) { return 1; }
static inline void __clk_put(struct clk *clk) { }
+#endif
static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
{
--
cgit v1.2.1
From 53e50398968d43338c4d932114e68bc099fc5fbd Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Sat, 20 Sep 2014 14:52:30 -0700
Subject: net: Remove gso_send_check as an offload callback
The send_check logic was only interesting in cases of TCP offload and
UDP UFO where the checksum needed to be initialized to the pseudo
header checksum. Now we've moved that logic into the related
gso_segment functions so gso_send_check is no longer needed.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 4354b4307e37..9f5d293a0281 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1911,7 +1911,6 @@ struct packet_type {
struct offload_callbacks {
struct sk_buff *(*gso_segment)(struct sk_buff *skb,
netdev_features_t features);
- int (*gso_send_check)(struct sk_buff *skb);
struct sk_buff **(*gro_receive)(struct sk_buff **head,
struct sk_buff *skb);
int (*gro_complete)(struct sk_buff *skb, int nhoff);
--
cgit v1.2.1
From b63adb979583ef185718d774d8162387db5589c0 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 26 Sep 2014 00:03:16 +0000
Subject: kernel: add support for kernel restart handler call chain
Various drivers implement architecture and/or device specific means to
restart (reset) the system. Various mechanisms have been implemented to
support those schemes. The best known mechanism is arm_pm_restart, which
is a function pointer to be set either from platform specific code or from
drivers. Another mechanism is to use hardware watchdogs to issue a reset;
this mechanism is used if there is no other method available to reset a
board or system. Two examples are alim7101_wdt, which currently uses the
reboot notifier to trigger a reset, and moxart_wdt, which registers the
arm_pm_restart function.
The existing mechanisms have a number of drawbacks. Typically only one
scheme to restart the system is supported (at least if arm_pm_restart is
used). At least in theory there can be multiple means to restart the
system, some of which may be less desirable (for example one mechanism may
only reset the CPU, while another may reset the entire system). Using
arm_pm_restart can also be racy if the function pointer is set from a
driver, as the driver may be in the process of being unloaded when
arm_pm_restart is called. Using the reboot notifier is always racy, as it
is unknown if and when other functions using the reboot notifier have
completed execution by the time the watchdog fires.
Introduce a system restart handler call chain to solve the described
problems. This call chain is expected to be executed from the
architecture specific machine_restart() function. Drivers providing
system restart functionality (such as the watchdog drivers mentioned
above) are expected to register with this call chain. By using the
priority field in the notifier block, callers can control restart handler
execution sequence and thus ensure that the restart handler with the
optimal restart capabilities for a given system is called first.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jonas Jensen <jonas.jensen@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/reboot.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index 48bf152761c7..67fc8fcdc4b0 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -38,6 +38,9 @@ extern int reboot_force;
extern int register_reboot_notifier(struct notifier_block *);
extern int unregister_reboot_notifier(struct notifier_block *);
+extern int register_restart_handler(struct notifier_block *);
+extern int unregister_restart_handler(struct notifier_block *);
+extern void do_kernel_restart(char *cmd);
/*
* Architecture-specific implementations of sys_reboot commands.
--
cgit v1.2.1
From 6ae61fbf38d0cd2aa922eb5e7241e9b0bfd7009d Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 13 Aug 2014 12:45:19 +0100
Subject: misc: st_kim: Increase size of dev_name buffer to incorporate
termination
Calling strncpy with a maximum size argument of 32 bytes on destination
array kim_gdata->dev_name of size 32 bytes might leave the destination
string unterminated.
Cc: gregkh@linuxfoundation.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/ti_wilink_st.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h
index 932b76392248..884d6263e962 100644
--- a/include/linux/ti_wilink_st.h
+++ b/include/linux/ti_wilink_st.h
@@ -268,7 +268,7 @@ struct kim_data_s {
struct st_data_s *core_data;
struct chip_version version;
unsigned char ldisc_install;
- unsigned char dev_name[UART_DEV_NAME_LEN];
+ unsigned char dev_name[UART_DEV_NAME_LEN + 1];
unsigned char flow_cntrl;
unsigned long baud_rate;
};
--
cgit v1.2.1
From 48018943eb906d81e48f40675c17b92abfeafcf1 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 13 Aug 2014 11:42:46 +0100
Subject: mfd: wm5102: Mark register write sequencer control 3 readable
During init the core checks if the wm5102 has finished starting by reading
register 0x19 and looking at the value. This read always fails since this
is not a readable register, mark it as being one. While we're at it provide
a constant for the register name (as supplied by Charles Keepax).
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/arizona/registers.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h
index dbd23c36de21..68913ec90969 100644
--- a/include/linux/mfd/arizona/registers.h
+++ b/include/linux/mfd/arizona/registers.h
@@ -27,6 +27,7 @@
#define ARIZONA_WRITE_SEQUENCER_CTRL_0 0x16
#define ARIZONA_WRITE_SEQUENCER_CTRL_1 0x17
#define ARIZONA_WRITE_SEQUENCER_CTRL_2 0x18
+#define ARIZONA_WRITE_SEQUENCER_CTRL_3 0x19
#define ARIZONA_WRITE_SEQUENCER_PROM 0x1A
#define ARIZONA_TONE_GENERATOR_1 0x20
#define ARIZONA_TONE_GENERATOR_2 0x21
--
cgit v1.2.1
From 4b5c1f1e080f79c3c226596047a20ccd1c8a9486 Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Wed, 20 Aug 2014 15:43:39 +0200
Subject: mfd: max77693: Fix register enum name
According to the MAX77693 documentation the name of
the register is FLASH_STATUS.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/max77693-private.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
index c466ff3e16b8..615f12141854 100644
--- a/include/linux/mfd/max77693-private.h
+++ b/include/linux/mfd/max77693-private.h
@@ -46,7 +46,7 @@ enum max77693_pmic_reg {
MAX77693_LED_REG_VOUT_FLASH2 = 0x0C,
MAX77693_LED_REG_FLASH_INT = 0x0E,
MAX77693_LED_REG_FLASH_INT_MASK = 0x0F,
- MAX77693_LED_REG_FLASH_INT_STATUS = 0x10,
+ MAX77693_LED_REG_FLASH_STATUS = 0x10,
MAX77693_PMIC_REG_PMIC_ID1 = 0x20,
MAX77693_PMIC_REG_PMIC_ID2 = 0x21,
--
cgit v1.2.1
From a0bc607208e295f70d0355fa4e632a0c8c27533b Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Fri, 22 Aug 2014 11:06:18 +0200
Subject: mfd: max77693: Improve support for the flash cell
This patch improves support for the flash cell of
max77693 mfd by adding relevant of_compatible field
and a structure for caching related platform data.
Added are also FLASH registers related macro definitions.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/max77693-private.h | 59 ++++++++++++++++++++++++++++++++++++
include/linux/mfd/max77693.h | 40 ++++++++++++++++++++++++
2 files changed, 99 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
index 615f12141854..de063773f3b1 100644
--- a/include/linux/mfd/max77693-private.h
+++ b/include/linux/mfd/max77693-private.h
@@ -85,6 +85,65 @@ enum max77693_pmic_reg {
MAX77693_PMIC_REG_END,
};
+/* MAX77693 ITORCH register */
+#define TORCH_IOUT1_SHIFT 0
+#define TORCH_IOUT2_SHIFT 4
+#define TORCH_IOUT_MIN 15625
+#define TORCH_IOUT_MAX 250000
+#define TORCH_IOUT_STEP 15625
+
+/* MAX77693 IFLASH1 and IFLASH2 registers */
+#define FLASH_IOUT_MIN 15625
+#define FLASH_IOUT_MAX_1LED 1000000
+#define FLASH_IOUT_MAX_2LEDS 625000
+#define FLASH_IOUT_STEP 15625
+
+/* MAX77693 TORCH_TIMER register */
+#define TORCH_TMR_NO_TIMER 0x40
+#define TORCH_TIMEOUT_MIN 262000
+#define TORCH_TIMEOUT_MAX 15728000
+
+/* MAX77693 FLASH_TIMER register */
+#define FLASH_TMR_LEVEL 0x80
+#define FLASH_TIMEOUT_MIN 62500
+#define FLASH_TIMEOUT_MAX 1000000
+#define FLASH_TIMEOUT_STEP 62500
+
+/* MAX77693 FLASH_EN register */
+#define FLASH_EN_OFF 0x0
+#define FLASH_EN_FLASH 0x1
+#define FLASH_EN_TORCH 0x2
+#define FLASH_EN_ON 0x3
+#define FLASH_EN_SHIFT(x) (6 - ((x) - 1) * 2)
+#define TORCH_EN_SHIFT(x) (2 - ((x) - 1) * 2)
+
+/* MAX77693 MAX_FLASH1 register */
+#define MAX_FLASH1_MAX_FL_EN 0x80
+#define MAX_FLASH1_VSYS_MIN 2400
+#define MAX_FLASH1_VSYS_MAX 3400
+#define MAX_FLASH1_VSYS_STEP 33
+
+/* MAX77693 VOUT_CNTL register */
+#define FLASH_BOOST_FIXED 0x04
+#define FLASH_BOOST_LEDNUM_2 0x80
+
+/* MAX77693 VOUT_FLASH1 register */
+#define FLASH_VOUT_MIN 3300
+#define FLASH_VOUT_MAX 5500
+#define FLASH_VOUT_STEP 25
+#define FLASH_VOUT_RMIN 0x0c
+
+/* MAX77693 FLASH_STATUS register */
+#define FLASH_STATUS_FLASH_ON BIT(3)
+#define FLASH_STATUS_TORCH_ON BIT(2)
+
+/* MAX77693 FLASH_INT register */
+#define FLASH_INT_FLED2_OPEN BIT(0)
+#define FLASH_INT_FLED2_SHORT BIT(1)
+#define FLASH_INT_FLED1_OPEN BIT(2)
+#define FLASH_INT_FLED1_SHORT BIT(3)
+#define FLASH_INT_OVER_CURRENT BIT(4)
+
/* MAX77693 CHG_CNFG_00 register */
#define CHG_CNFG_00_CHG_MASK 0x1
#define CHG_CNFG_00_BUCK_MASK 0x4
diff --git a/include/linux/mfd/max77693.h b/include/linux/mfd/max77693.h
index 3f3dc45f93ee..f0b6585cd874 100644
--- a/include/linux/mfd/max77693.h
+++ b/include/linux/mfd/max77693.h
@@ -63,6 +63,45 @@ struct max77693_muic_platform_data {
int path_uart;
};
+/* MAX77693 led flash */
+
+/* triggers */
+enum max77693_led_trigger {
+ MAX77693_LED_TRIG_OFF,
+ MAX77693_LED_TRIG_FLASH,
+ MAX77693_LED_TRIG_TORCH,
+ MAX77693_LED_TRIG_EXT,
+ MAX77693_LED_TRIG_SOFT,
+};
+
+/* trigger types */
+enum max77693_led_trigger_type {
+ MAX77693_LED_TRIG_TYPE_EDGE,
+ MAX77693_LED_TRIG_TYPE_LEVEL,
+};
+
+/* boost modes */
+enum max77693_led_boost_mode {
+ MAX77693_LED_BOOST_NONE,
+ MAX77693_LED_BOOST_ADAPTIVE,
+ MAX77693_LED_BOOST_FIXED,
+};
+
+struct max77693_led_platform_data {
+ u32 fleds[2];
+ u32 iout_torch[2];
+ u32 iout_flash[2];
+ u32 trigger[2];
+ u32 trigger_type[2];
+ u32 num_leds;
+ u32 boost_mode;
+ u32 flash_timeout;
+ u32 boost_vout;
+ u32 low_vsys;
+};
+
+/* MAX77693 */
+
struct max77693_platform_data {
/* regulator data */
struct max77693_regulator_data *regulators;
@@ -70,5 +109,6 @@ struct max77693_platform_data {
/* muic data */
struct max77693_muic_platform_data *muic_data;
+ struct max77693_led_platform_data *led_data;
};
#endif /* __LINUX_MFD_MAX77693_H */
--
cgit v1.2.1
From dfa52c852dd3fcf3c0e696ab2d7df0bf91b2aed9 Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Thu, 28 Aug 2014 13:52:50 +0200
Subject: mfd: ti_ssp: Remove unused header
The header file include/linux/mfd/ti_ssp.h does not seem to be used
anywhere. It was orphaned by 3033ee62 "mfd: Remove obsolete ti-ssp
driver". Remove it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/ti_ssp.h | 93 ----------------------------------------------
1 file changed, 93 deletions(-)
delete mode 100644 include/linux/mfd/ti_ssp.h
(limited to 'include')
diff --git a/include/linux/mfd/ti_ssp.h b/include/linux/mfd/ti_ssp.h
deleted file mode 100644
index dbb4b43bd20e..000000000000
--- a/include/linux/mfd/ti_ssp.h
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Sequencer Serial Port (SSP) driver for Texas Instruments' SoCs
- *
- * Copyright (C) 2010 Texas Instruments Inc
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __TI_SSP_H__
-#define __TI_SSP_H__
-
-struct ti_ssp_dev_data {
- const char *dev_name;
- void *pdata;
- size_t pdata_size;
-};
-
-struct ti_ssp_data {
- unsigned long out_clock;
- struct ti_ssp_dev_data dev_data[2];
-};
-
-struct ti_ssp_spi_data {
- unsigned long iosel;
- int num_cs;
- void (*select)(int cs);
-};
-
-/*
- * Sequencer port IO pin configuration bits. These do not correlate 1-1 with
- * the hardware. The iosel field in the port data combines iosel1 and iosel2,
- * and is therefore not a direct map to register space. It is best to use the
- * macros below to construct iosel values.
- *
- * least significant 16 bits --> iosel1
- * most significant 16 bits --> iosel2
- */
-
-#define SSP_IN 0x0000
-#define SSP_DATA 0x0001
-#define SSP_CLOCK 0x0002
-#define SSP_CHIPSEL 0x0003
-#define SSP_OUT 0x0004
-#define SSP_PIN_SEL(pin, v) ((v) << ((pin) * 3))
-#define SSP_PIN_MASK(pin) SSP_PIN_SEL(pin, 0x7)
-#define SSP_INPUT_SEL(pin) ((pin) << 16)
-
-/* Sequencer port config bits */
-#define SSP_EARLY_DIN BIT(8)
-#define SSP_DELAY_DOUT BIT(9)
-
-/* Sequence map definitions */
-#define SSP_CLK_HIGH BIT(0)
-#define SSP_CLK_LOW 0
-#define SSP_DATA_HIGH BIT(1)
-#define SSP_DATA_LOW 0
-#define SSP_CS_HIGH BIT(2)
-#define SSP_CS_LOW 0
-#define SSP_OUT_MODE BIT(3)
-#define SSP_IN_MODE 0
-#define SSP_DATA_REG BIT(4)
-#define SSP_ADDR_REG 0
-
-#define SSP_OPCODE_DIRECT ((0x0) << 5)
-#define SSP_OPCODE_TOGGLE ((0x1) << 5)
-#define SSP_OPCODE_SHIFT ((0x2) << 5)
-#define SSP_OPCODE_BRANCH0 ((0x4) << 5)
-#define SSP_OPCODE_BRANCH1 ((0x5) << 5)
-#define SSP_OPCODE_BRANCH ((0x6) << 5)
-#define SSP_OPCODE_STOP ((0x7) << 5)
-#define SSP_BRANCH(addr) ((addr) << 8)
-#define SSP_COUNT(cycles) ((cycles) << 8)
-
-int ti_ssp_raw_read(struct device *dev);
-int ti_ssp_raw_write(struct device *dev, u32 val);
-int ti_ssp_load(struct device *dev, int offs, u32* prog, int len);
-int ti_ssp_run(struct device *dev, u32 pc, u32 input, u32 *output);
-int ti_ssp_set_mode(struct device *dev, int mode);
-int ti_ssp_set_iosel(struct device *dev, u32 iosel);
-
-#endif /* __TI_SSP_H__ */
--
cgit v1.2.1
From c593aca4e42a24b229a8070c4eb50d01f54877f2 Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Fri, 22 Aug 2014 18:49:03 +0200
Subject: mfd: davinci_voicecodec: Fix 'if defined' guard type in header
The include guard doesn't work as intended due to the transposition
typo DAVINCI -> DAVINIC.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/davinci_voicecodec.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mfd/davinci_voicecodec.h b/include/linux/mfd/davinci_voicecodec.h
index 5166935ce66d..cb01496bfa49 100644
--- a/include/linux/mfd/davinci_voicecodec.h
+++ b/include/linux/mfd/davinci_voicecodec.h
@@ -21,7 +21,7 @@
*/
#ifndef __LINUX_MFD_DAVINCI_VOICECODEC_H_
-#define __LINUX_MFD_DAVINIC_VOICECODEC_H_
+#define __LINUX_MFD_DAVINCI_VOICECODEC_H_
#include <linux/kernel.h>
#include <linux/platform_device.h>
--
cgit v1.2.1
From 9bb9e29c78f8d8ee310987fd58a2b908a4ce0c40 Mon Sep 17 00:00:00 2001
From: Beniamino Galvani <b.galvani@gmail.com>
Date: Sat, 30 Aug 2014 14:50:23 +0200
Subject: mfd: Add Ricoh RN5T618 PMIC core driver
Ricoh RN5T618 is a power management IC which integrates 3 step-down
DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
fuel gauge, ADC, GPIOs and a watchdog timer.
This commit adds a MFD core driver to support the I2C communication
with the device.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/rn5t618.h | 228 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 228 insertions(+)
create mode 100644 include/linux/mfd/rn5t618.h
(limited to 'include')
diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
new file mode 100644
index 000000000000..c72d5344f3b3
--- /dev/null
+++ b/include/linux/mfd/rn5t618.h
@@ -0,0 +1,228 @@
+/*
+ * MFD core driver for Ricoh RN5T618 PMIC
+ *
+ * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __LINUX_MFD_RN5T618_H
+#define __LINUX_MFD_RN5T618_H
+
+#include <linux/regmap.h>
+
+#define RN5T618_LSIVER 0x00
+#define RN5T618_OTPVER 0x01
+#define RN5T618_IODAC 0x02
+#define RN5T618_VINDAC 0x03
+#define RN5T618_CPUCNT 0x06
+#define RN5T618_PSWR 0x07
+#define RN5T618_PONHIS 0x09
+#define RN5T618_POFFHIS 0x0a
+#define RN5T618_WATCHDOG 0x0b
+#define RN5T618_WATCHDOGCNT 0x0c
+#define RN5T618_PWRFUNC 0x0d
+#define RN5T618_SLPCNT 0x0e
+#define RN5T618_REPCNT 0x0f
+#define RN5T618_PWRONTIMSET 0x10
+#define RN5T618_NOETIMSETCNT 0x11
+#define RN5T618_PWRIREN 0x12
+#define RN5T618_PWRIRQ 0x13
+#define RN5T618_PWRMON 0x14
+#define RN5T618_PWRIRSEL 0x15
+#define RN5T618_DC1_SLOT 0x16
+#define RN5T618_DC2_SLOT 0x17
+#define RN5T618_DC3_SLOT 0x18
+#define RN5T618_LDO1_SLOT 0x1b
+#define RN5T618_LDO2_SLOT 0x1c
+#define RN5T618_LDO3_SLOT 0x1d
+#define RN5T618_LDO4_SLOT 0x1e
+#define RN5T618_LDO5_SLOT 0x1f
+#define RN5T618_PSO0_SLOT 0x25
+#define RN5T618_PSO1_SLOT 0x26
+#define RN5T618_PSO2_SLOT 0x27
+#define RN5T618_PSO3_SLOT 0x28
+#define RN5T618_LDORTC1_SLOT 0x2a
+#define RN5T618_DC1CTL 0x2c
+#define RN5T618_DC1CTL2 0x2d
+#define RN5T618_DC2CTL 0x2e
+#define RN5T618_DC2CTL2 0x2f
+#define RN5T618_DC3CTL 0x30
+#define RN5T618_DC3CTL2 0x31
+#define RN5T618_DC1DAC 0x36
+#define RN5T618_DC2DAC 0x37
+#define RN5T618_DC3DAC 0x38
+#define RN5T618_DC1DAC_SLP 0x3b
+#define RN5T618_DC2DAC_SLP 0x3c
+#define RN5T618_DC3DAC_SLP 0x3d
+#define RN5T618_DCIREN 0x40
+#define RN5T618_DCIRQ 0x41
+#define RN5T618_DCIRMON 0x42
+#define RN5T618_LDOEN1 0x44
+#define RN5T618_LDOEN2 0x45
+#define RN5T618_LDODIS 0x46
+#define RN5T618_LDO1DAC 0x4c
+#define RN5T618_LDO2DAC 0x4d
+#define RN5T618_LDO3DAC 0x4e
+#define RN5T618_LDO4DAC 0x4f
+#define RN5T618_LDO5DAC 0x50
+#define RN5T618_LDORTCDAC 0x56
+#define RN5T618_LDORTC2DAC 0x57
+#define RN5T618_LDO1DAC_SLP 0x58
+#define RN5T618_LDO2DAC_SLP 0x59
+#define RN5T618_LDO3DAC_SLP 0x5a
+#define RN5T618_LDO4DAC_SLP 0x5b
+#define RN5T618_LDO5DAC_SLP 0x5c
+#define RN5T618_ADCCNT1 0x64
+#define RN5T618_ADCCNT2 0x65
+#define RN5T618_ADCCNT3 0x66
+#define RN5T618_ILIMDATAH 0x68
+#define RN5T618_ILIMDATAL 0x69
+#define RN5T618_VBATDATAH 0x6a
+#define RN5T618_VBATDATAL 0x6b
+#define RN5T618_VADPDATAH 0x6c
+#define RN5T618_VADPDATAL 0x6d
+#define RN5T618_VUSBDATAH 0x6e
+#define RN5T618_VUSBDATAL 0x6f
+#define RN5T618_VSYSDATAH 0x70
+#define RN5T618_VSYSDATAL 0x71
+#define RN5T618_VTHMDATAH 0x72
+#define RN5T618_VTHMDATAL 0x73
+#define RN5T618_AIN1DATAH 0x74
+#define RN5T618_AIN1DATAL 0x75
+#define RN5T618_AIN0DATAH 0x76
+#define RN5T618_AIN0DATAL 0x77
+#define RN5T618_ILIMTHL 0x78
+#define RN5T618_ILIMTHH 0x79
+#define RN5T618_VBATTHL 0x7a
+#define RN5T618_VBATTHH 0x7b
+#define RN5T618_VADPTHL 0x7c
+#define RN5T618_VADPTHH 0x7d
+#define RN5T618_VUSBTHL 0x7e
+#define RN5T618_VUSBTHH 0x7f
+#define RN5T618_VSYSTHL 0x80
+#define RN5T618_VSYSTHH 0x81
+#define RN5T618_VTHMTHL 0x82
+#define RN5T618_VTHMTHH 0x83
+#define RN5T618_AIN1THL 0x84
+#define RN5T618_AIN1THH 0x85
+#define RN5T618_AIN0THL 0x86
+#define RN5T618_AIN0THH 0x87
+#define RN5T618_EN_ADCIR1 0x88
+#define RN5T618_EN_ADCIR2 0x89
+#define RN5T618_EN_ADCIR3 0x8a
+#define RN5T618_IR_ADC1 0x8c
+#define RN5T618_IR_ADC2 0x8d
+#define RN5T618_IR_ADC3 0x8e
+#define RN5T618_IOSEL 0x90
+#define RN5T618_IOOUT 0x91
+#define RN5T618_GPEDGE1 0x92
+#define RN5T618_GPEDGE2 0x93
+#define RN5T618_EN_GPIR 0x94
+#define RN5T618_IR_GPR 0x95
+#define RN5T618_IR_GPF 0x96
+#define RN5T618_MON_IOIN 0x97
+#define RN5T618_GPLED_FUNC 0x98
+#define RN5T618_INTPOL 0x9c
+#define RN5T618_INTEN 0x9d
+#define RN5T618_INTMON 0x9e
+#define RN5T618_PREVINDAC 0xb0
+#define RN5T618_BATDAC 0xb1
+#define RN5T618_CHGCTL1 0xb3
+#define RN5T618_CHGCTL2 0xb4
+#define RN5T618_VSYSSET 0xb5
+#define RN5T618_REGISET1 0xb6
+#define RN5T618_REGISET2 0xb7
+#define RN5T618_CHGISET 0xb8
+#define RN5T618_TIMSET 0xb9
+#define RN5T618_BATSET1 0xba
+#define RN5T618_BATSET2 0xbb
+#define RN5T618_DIESET 0xbc
+#define RN5T618_CHGSTATE 0xbd
+#define RN5T618_CHGCTRL_IRFMASK 0xbe
+#define RN5T618_CHGSTAT_IRFMASK1 0xbf
+#define RN5T618_CHGSTAT_IRFMASK2 0xc0
+#define RN5T618_CHGERR_IRFMASK 0xc1
+#define RN5T618_CHGCTRL_IRR 0xc2
+#define RN5T618_CHGSTAT_IRR1 0xc3
+#define RN5T618_CHGSTAT_IRR2 0xc4
+#define RN5T618_CHGERR_IRR 0xc5
+#define RN5T618_CHGCTRL_MONI 0xc6
+#define RN5T618_CHGSTAT_MONI1 0xc7
+#define RN5T618_CHGSTAT_MONI2 0xc8
+#define RN5T618_CHGERR_MONI 0xc9
+#define RN5T618_CHGCTRL_DETMOD1 0xca
+#define RN5T618_CHGCTRL_DETMOD2 0xcb
+#define RN5T618_CHGSTAT_DETMOD1 0xcc
+#define RN5T618_CHGSTAT_DETMOD2 0xcd
+#define RN5T618_CHGSTAT_DETMOD3 0xce
+#define RN5T618_CHGERR_DETMOD1 0xcf
+#define RN5T618_CHGERR_DETMOD2 0xd0
+#define RN5T618_CHGOSCCTL 0xd4
+#define RN5T618_CHGOSCSCORESET1 0xd5
+#define RN5T618_CHGOSCSCORESET2 0xd6
+#define RN5T618_CHGOSCSCORESET3 0xd7
+#define RN5T618_CHGOSCFREQSET1 0xd8
+#define RN5T618_CHGOSCFREQSET2 0xd9
+#define RN5T618_CONTROL 0xe0
+#define RN5T618_SOC 0xe1
+#define RN5T618_RE_CAP_H 0xe2
+#define RN5T618_RE_CAP_L 0xe3
+#define RN5T618_FA_CAP_H 0xe4
+#define RN5T618_FA_CAP_L 0xe5
+#define RN5T618_AGE 0xe6
+#define RN5T618_TT_EMPTY_H 0xe7
+#define RN5T618_TT_EMPTY_L 0xe8
+#define RN5T618_TT_FULL_H 0xe9
+#define RN5T618_TT_FULL_L 0xea
+#define RN5T618_VOLTAGE_1 0xeb
+#define RN5T618_VOLTAGE_0 0xec
+#define RN5T618_TEMP_1 0xed
+#define RN5T618_TEMP_0 0xee
+#define RN5T618_CC_CTRL 0xef
+#define RN5T618_CC_COUNT2 0xf0
+#define RN5T618_CC_COUNT1 0xf1
+#define RN5T618_CC_COUNT0 0xf2
+#define RN5T618_CC_SUMREG3 0xf3
+#define RN5T618_CC_SUMREG2 0xf4
+#define RN5T618_CC_SUMREG1 0xf5
+#define RN5T618_CC_SUMREG0 0xf6
+#define RN5T618_CC_OFFREG1 0xf7
+#define RN5T618_CC_OFFREG0 0xf8
+#define RN5T618_CC_GAINREG1 0xf9
+#define RN5T618_CC_GAINREG0 0xfa
+#define RN5T618_CC_AVEREG1 0xfb
+#define RN5T618_CC_AVEREG0 0xfc
+#define RN5T618_MAX_REG 0xfc
+
+#define RN5T618_REPCNT_REPWRON BIT(0)
+#define RN5T618_SLPCNT_SWPWROFF BIT(0)
+#define RN5T618_WATCHDOG_WDOGEN BIT(2)
+#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
+#define RN5T618_WATCHDOG_WDOGTIM_S 0
+#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
+
+enum {
+ RN5T618_DCDC1,
+ RN5T618_DCDC2,
+ RN5T618_DCDC3,
+ RN5T618_LDO1,
+ RN5T618_LDO2,
+ RN5T618_LDO3,
+ RN5T618_LDO4,
+ RN5T618_LDO5,
+ RN5T618_LDORTC1,
+ RN5T618_LDORTC2,
+ RN5T618_REG_NUM,
+};
+
+struct rn5t618 {
+ struct regmap *regmap;
+};
+
+#endif /* __LINUX_MFD_RN5T618_H */
--
cgit v1.2.1
From c24084db223aec7793201b94f0712cfdfa7e9fe7 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Mon, 1 Sep 2014 15:48:52 +0100
Subject: mfd: arizona: Add ASYNC_SAMPLE_RATE_2 registers
Some arizona devices have a second asynchronous sample rate, add the
registers necessary to support this.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/arizona/registers.h | 28 ++++++++++++++++++++++------
1 file changed, 22 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h
index 68913ec90969..c0b075f6bc35 100644
--- a/include/linux/mfd/arizona/registers.h
+++ b/include/linux/mfd/arizona/registers.h
@@ -71,7 +71,9 @@
#define ARIZONA_SAMPLE_RATE_3_STATUS 0x10C
#define ARIZONA_ASYNC_CLOCK_1 0x112
#define ARIZONA_ASYNC_SAMPLE_RATE_1 0x113
+#define ARIZONA_ASYNC_SAMPLE_RATE_2 0x114
#define ARIZONA_ASYNC_SAMPLE_RATE_1_STATUS 0x11B
+#define ARIZONA_ASYNC_SAMPLE_RATE_2_STATUS 0x11C
#define ARIZONA_OUTPUT_SYSTEM_CLOCK 0x149
#define ARIZONA_OUTPUT_ASYNC_CLOCK 0x14A
#define ARIZONA_RATE_ESTIMATOR_1 0x152
@@ -1665,16 +1667,30 @@
/*
* R275 (0x113) - Async sample rate 1
*/
-#define ARIZONA_ASYNC_SAMPLE_RATE_MASK 0x001F /* ASYNC_SAMPLE_RATE - [4:0] */
-#define ARIZONA_ASYNC_SAMPLE_RATE_SHIFT 0 /* ASYNC_SAMPLE_RATE - [4:0] */
-#define ARIZONA_ASYNC_SAMPLE_RATE_WIDTH 5 /* ASYNC_SAMPLE_RATE - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_1_MASK 0x001F /* ASYNC_SAMPLE_RATE_1 - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_1_SHIFT 0 /* ASYNC_SAMPLE_RATE_1 - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_1_WIDTH 5 /* ASYNC_SAMPLE_RATE_1 - [4:0] */
+
+/*
+ * R276 (0x114) - Async sample rate 2
+ */
+#define ARIZONA_ASYNC_SAMPLE_RATE_2_MASK 0x001F /* ASYNC_SAMPLE_RATE_2 - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_2_SHIFT 0 /* ASYNC_SAMPLE_RATE_2 - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_2_WIDTH 5 /* ASYNC_SAMPLE_RATE_2 - [4:0] */
/*
* R283 (0x11B) - Async sample rate 1 status
*/
-#define ARIZONA_ASYNC_SAMPLE_RATE_STS_MASK 0x001F /* ASYNC_SAMPLE_RATE_STS - [4:0] */
-#define ARIZONA_ASYNC_SAMPLE_RATE_STS_SHIFT 0 /* ASYNC_SAMPLE_RATE_STS - [4:0] */
-#define ARIZONA_ASYNC_SAMPLE_RATE_STS_WIDTH 5 /* ASYNC_SAMPLE_RATE_STS - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_1_STS_MASK 0x001F /* ASYNC_SAMPLE_RATE_1_STS - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_1_STS_SHIFT 0 /* ASYNC_SAMPLE_RATE_1_STS - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_1_STS_WIDTH 5 /* ASYNC_SAMPLE_RATE_1_STS - [4:0] */
+
+/*
+ * R284 (0x11C) - Async sample rate 2 status
+ */
+#define ARIZONA_ASYNC_SAMPLE_RATE_2_STS_MASK 0x001F /* ASYNC_SAMPLE_RATE_2_STS - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_2_STS_SHIFT 0 /* ASYNC_SAMPLE_RATE_2_STS - [4:0] */
+#define ARIZONA_ASYNC_SAMPLE_RATE_2_STS_WIDTH 5 /* ASYNC_SAMPLE_RATE_2_STS - [4:0] */
/*
* R329 (0x149) - Output system clock
--
cgit v1.2.1
From e9e9d3973594cadd9e892bc79f914f299bb61124 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Sat, 16 Aug 2014 21:23:40 +0800
Subject: mfd: da9052: Avoid setting read_flag_mask for da9052-i2c driver
Current code init regmap with &da9052_regmap_config for both da9052-spi and
da9052-i2c drivers. da9052-spi sets the read_flag_mask.
The same setting may be applied for da9052-i2c if da9052-spi driver is loaded
first because they actually use the same regmap_config setting.
Fix this issue by using a local variable for regmap_config in da9052-spi driver,
so the settings in spi driver won't impact the settings in i2c driver.
Also makes da9052_regmap_config const to avoid similar issue.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/da9052/da9052.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mfd/da9052/da9052.h b/include/linux/mfd/da9052/da9052.h
index bba65f51a0b5..c18a4c19d6fc 100644
--- a/include/linux/mfd/da9052/da9052.h
+++ b/include/linux/mfd/da9052/da9052.h
@@ -211,7 +211,7 @@ static inline int da9052_reg_update(struct da9052 *da9052, unsigned char reg,
int da9052_device_init(struct da9052 *da9052, u8 chip_id);
void da9052_device_exit(struct da9052 *da9052);
-extern struct regmap_config da9052_regmap_config;
+extern const struct regmap_config da9052_regmap_config;
int da9052_irq_init(struct da9052 *da9052);
int da9052_irq_exit(struct da9052 *da9052);
--
cgit v1.2.1
From a53b9a97ac33fa74d136c2e3fd0d76ba7872a1d0 Mon Sep 17 00:00:00 2001
From: Chris Zhong <zyw@rock-chips.com>
Date: Wed, 3 Sep 2014 21:51:43 +0800
Subject: mfd: dt-bindings: Add RK808 device tree bindings document
Add device tree bindings documentation and a header file
for rockchip's RK808 pmic.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Zhang Qing <zhangqing@rock-chips.com>
Tested-by: Heiko <heiko@sntech.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/dt-bindings/clock/rockchip,rk808.h | 11 +++++++++++
1 file changed, 11 insertions(+)
create mode 100644 include/dt-bindings/clock/rockchip,rk808.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/rockchip,rk808.h b/include/dt-bindings/clock/rockchip,rk808.h
new file mode 100644
index 000000000000..1a873432f965
--- /dev/null
+++ b/include/dt-bindings/clock/rockchip,rk808.h
@@ -0,0 +1,11 @@
+/*
+ * This header provides constants clk index RK808 pmic clkout
+ */
+#ifndef _CLK_ROCKCHIP_RK808
+#define _CLK_ROCKCHIP_RK808
+
+/* CLOCKOUT index */
+#define RK808_CLKOUT0 0
+#define RK808_CLKOUT1 1
+
+#endif
--
cgit v1.2.1
From f69a7cf74d5536faa180437581be2a9c0aad1bb1 Mon Sep 17 00:00:00 2001
From: Chris Zhong <zyw@rock-chips.com>
Date: Wed, 3 Sep 2014 21:51:44 +0800
Subject: mfd: RK808: Add new mfd driver for RK808
The RK808 chip is a power management IC for multimedia and handheld
devices. It contains the following components:
- Regulators
- RTC
- Clkout
The RK808 core driver is registered as a platform driver and provides
communication through I2C with the host device for the different
components.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Zhang Qing <zhangqing@rock-chips.com>
Tested-by: Heiko <heiko@sntech.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/rk808.h | 196 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 196 insertions(+)
create mode 100644 include/linux/mfd/rk808.h
(limited to 'include')
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
new file mode 100644
index 000000000000..fb09312d854b
--- /dev/null
+++ b/include/linux/mfd/rk808.h
@@ -0,0 +1,196 @@
+/*
+ * rk808.h for Rockchip RK808
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ * Author: Zhang Qing <zhangqing@rock-chips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __LINUX_REGULATOR_rk808_H
+#define __LINUX_REGULATOR_rk808_H
+
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+
+/*
+ * rk808 Global Register Map.
+ */
+
+#define RK808_DCDC1 0 /* (0+RK808_START) */
+#define RK808_LDO1 4 /* (4+RK808_START) */
+#define RK808_NUM_REGULATORS 14
+
+enum rk808_reg {
+ RK808_ID_DCDC1,
+ RK808_ID_DCDC2,
+ RK808_ID_DCDC3,
+ RK808_ID_DCDC4,
+ RK808_ID_LDO1,
+ RK808_ID_LDO2,
+ RK808_ID_LDO3,
+ RK808_ID_LDO4,
+ RK808_ID_LDO5,
+ RK808_ID_LDO6,
+ RK808_ID_LDO7,
+ RK808_ID_LDO8,
+ RK808_ID_SWITCH1,
+ RK808_ID_SWITCH2,
+};
+
+#define RK808_SECONDS_REG 0x00
+#define RK808_MINUTES_REG 0x01
+#define RK808_HOURS_REG 0x02
+#define RK808_DAYS_REG 0x03
+#define RK808_MONTHS_REG 0x04
+#define RK808_YEARS_REG 0x05
+#define RK808_WEEKS_REG 0x06
+#define RK808_ALARM_SECONDS_REG 0x08
+#define RK808_ALARM_MINUTES_REG 0x09
+#define RK808_ALARM_HOURS_REG 0x0a
+#define RK808_ALARM_DAYS_REG 0x0b
+#define RK808_ALARM_MONTHS_REG 0x0c
+#define RK808_ALARM_YEARS_REG 0x0d
+#define RK808_RTC_CTRL_REG 0x10
+#define RK808_RTC_STATUS_REG 0x11
+#define RK808_RTC_INT_REG 0x12
+#define RK808_RTC_COMP_LSB_REG 0x13
+#define RK808_RTC_COMP_MSB_REG 0x14
+#define RK808_CLK32OUT_REG 0x20
+#define RK808_VB_MON_REG 0x21
+#define RK808_THERMAL_REG 0x22
+#define RK808_DCDC_EN_REG 0x23
+#define RK808_LDO_EN_REG 0x24
+#define RK808_SLEEP_SET_OFF_REG1 0x25
+#define RK808_SLEEP_SET_OFF_REG2 0x26
+#define RK808_DCDC_UV_STS_REG 0x27
+#define RK808_DCDC_UV_ACT_REG 0x28
+#define RK808_LDO_UV_STS_REG 0x29
+#define RK808_LDO_UV_ACT_REG 0x2a
+#define RK808_DCDC_PG_REG 0x2b
+#define RK808_LDO_PG_REG 0x2c
+#define RK808_VOUT_MON_TDB_REG 0x2d
+#define RK808_BUCK1_CONFIG_REG 0x2e
+#define RK808_BUCK1_ON_VSEL_REG 0x2f
+#define RK808_BUCK1_SLP_VSEL_REG 0x30
+#define RK808_BUCK1_DVS_VSEL_REG 0x31
+#define RK808_BUCK2_CONFIG_REG 0x32
+#define RK808_BUCK2_ON_VSEL_REG 0x33
+#define RK808_BUCK2_SLP_VSEL_REG 0x34
+#define RK808_BUCK2_DVS_VSEL_REG 0x35
+#define RK808_BUCK3_CONFIG_REG 0x36
+#define RK808_BUCK4_CONFIG_REG 0x37
+#define RK808_BUCK4_ON_VSEL_REG 0x38
+#define RK808_BUCK4_SLP_VSEL_REG 0x39
+#define RK808_BOOST_CONFIG_REG 0x3a
+#define RK808_LDO1_ON_VSEL_REG 0x3b
+#define RK808_LDO1_SLP_VSEL_REG 0x3c
+#define RK808_LDO2_ON_VSEL_REG 0x3d
+#define RK808_LDO2_SLP_VSEL_REG 0x3e
+#define RK808_LDO3_ON_VSEL_REG 0x3f
+#define RK808_LDO3_SLP_VSEL_REG 0x40
+#define RK808_LDO4_ON_VSEL_REG 0x41
+#define RK808_LDO4_SLP_VSEL_REG 0x42
+#define RK808_LDO5_ON_VSEL_REG 0x43
+#define RK808_LDO5_SLP_VSEL_REG 0x44
+#define RK808_LDO6_ON_VSEL_REG 0x45
+#define RK808_LDO6_SLP_VSEL_REG 0x46
+#define RK808_LDO7_ON_VSEL_REG 0x47
+#define RK808_LDO7_SLP_VSEL_REG 0x48
+#define RK808_LDO8_ON_VSEL_REG 0x49
+#define RK808_LDO8_SLP_VSEL_REG 0x4a
+#define RK808_DEVCTRL_REG 0x4b
+#define RK808_INT_STS_REG1 0x4c
+#define RK808_INT_STS_MSK_REG1 0x4d
+#define RK808_INT_STS_REG2 0x4e
+#define RK808_INT_STS_MSK_REG2 0x4f
+#define RK808_IO_POL_REG 0x50
+
+/* IRQ Definitions */
+#define RK808_IRQ_VOUT_LO 0
+#define RK808_IRQ_VB_LO 1
+#define RK808_IRQ_PWRON 2
+#define RK808_IRQ_PWRON_LP 3
+#define RK808_IRQ_HOTDIE 4
+#define RK808_IRQ_RTC_ALARM 5
+#define RK808_IRQ_RTC_PERIOD 6
+#define RK808_IRQ_PLUG_IN_INT 7
+#define RK808_IRQ_PLUG_OUT_INT 8
+#define RK808_NUM_IRQ 9
+
+#define RK808_IRQ_VOUT_LO_MSK BIT(0)
+#define RK808_IRQ_VB_LO_MSK BIT(1)
+#define RK808_IRQ_PWRON_MSK BIT(2)
+#define RK808_IRQ_PWRON_LP_MSK BIT(3)
+#define RK808_IRQ_HOTDIE_MSK BIT(4)
+#define RK808_IRQ_RTC_ALARM_MSK BIT(5)
+#define RK808_IRQ_RTC_PERIOD_MSK BIT(6)
+#define RK808_IRQ_PLUG_IN_INT_MSK BIT(0)
+#define RK808_IRQ_PLUG_OUT_INT_MSK BIT(1)
+
+#define RK808_VBAT_LOW_2V8 0x00
+#define RK808_VBAT_LOW_2V9 0x01
+#define RK808_VBAT_LOW_3V0 0x02
+#define RK808_VBAT_LOW_3V1 0x03
+#define RK808_VBAT_LOW_3V2 0x04
+#define RK808_VBAT_LOW_3V3 0x05
+#define RK808_VBAT_LOW_3V4 0x06
+#define RK808_VBAT_LOW_3V5 0x07
+#define VBAT_LOW_VOL_MASK (0x07 << 0)
+#define EN_VABT_LOW_SHUT_DOWN (0x00 << 4)
+#define EN_VBAT_LOW_IRQ (0x1 << 4)
+#define VBAT_LOW_ACT_MASK (0x1 << 4)
+
+#define BUCK_ILMIN_MASK (7 << 0)
+#define BOOST_ILMIN_MASK (7 << 0)
+#define BUCK1_RATE_MASK (3 << 3)
+#define BUCK2_RATE_MASK (3 << 3)
+#define MASK_ALL 0xff
+
+#define SWITCH2_EN BIT(6)
+#define SWITCH1_EN BIT(5)
+#define DEV_OFF_RST BIT(3)
+
+#define VB_LO_ACT BIT(4)
+#define VB_LO_SEL_3500MV (7 << 0)
+
+#define VOUT_LO_INT BIT(0)
+#define CLK32KOUT2_EN BIT(0)
+
+enum {
+ BUCK_ILMIN_50MA,
+ BUCK_ILMIN_100MA,
+ BUCK_ILMIN_150MA,
+ BUCK_ILMIN_200MA,
+ BUCK_ILMIN_250MA,
+ BUCK_ILMIN_300MA,
+ BUCK_ILMIN_350MA,
+ BUCK_ILMIN_400MA,
+};
+
+enum {
+ BOOST_ILMIN_75MA,
+ BOOST_ILMIN_100MA,
+ BOOST_ILMIN_125MA,
+ BOOST_ILMIN_150MA,
+ BOOST_ILMIN_175MA,
+ BOOST_ILMIN_200MA,
+ BOOST_ILMIN_225MA,
+ BOOST_ILMIN_250MA,
+};
+
+struct rk808 {
+ struct i2c_client *i2c;
+ struct regmap_irq_chip_data *irq_data;
+ struct regmap *regmap;
+};
+#endif /* __LINUX_REGULATOR_rk808_H */
--
cgit v1.2.1
From bb048713bba3ead39f6112910906d9fe3f88ede7 Mon Sep 17 00:00:00 2001
From: Josef Ahmad <josef.ahmad@intel.com>
Date: Tue, 2 Sep 2014 13:45:20 +0300
Subject: pci_ids: Add support for Intel Quark ILB
This patch adds the PCI id for Intel Quark ILB.
It will be used for GPIO and Multifunction device driver.
Signed-off-by: Josef Ahmad <josef.ahmad@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/pci_ids.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 6ed0bb73a864..4e82195b1695 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2557,6 +2557,7 @@
#define PCI_DEVICE_ID_INTEL_MFD_EMMC0 0x0823
#define PCI_DEVICE_ID_INTEL_MFD_EMMC1 0x0824
#define PCI_DEVICE_ID_INTEL_MRST_SD2 0x084F
+#define PCI_DEVICE_ID_INTEL_QUARK_X1000_ILB 0x095E
#define PCI_DEVICE_ID_INTEL_I960 0x0960
#define PCI_DEVICE_ID_INTEL_I960RM 0x0962
#define PCI_DEVICE_ID_INTEL_CENTERTON_ILB 0x0c60
--
cgit v1.2.1
From 8bdf87b400271ebc7fbf71e117c299d19a97ebb4 Mon Sep 17 00:00:00 2001
From: Guodong Xu <guodong.xu@linaro.org>
Date: Mon, 1 Sep 2014 16:28:34 +0800
Subject: mfd: Add HI6421 PMIC Core driver
This adds driver to support HiSilicon Hi6421 PMIC. Hi6421 includes multi-
functions, such as regulators, codec, ADCs, Coulomb counter, etc.
This driver includes core APIs _only_.
Drivers for individul components, like voltage regulators, are
implemented in corresponding driver directories and files.
Registers in Hi6421 are memory mapped, so using regmap-mmio API.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/hi6421-pmic.h | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 include/linux/mfd/hi6421-pmic.h
(limited to 'include')
diff --git a/include/linux/mfd/hi6421-pmic.h b/include/linux/mfd/hi6421-pmic.h
new file mode 100644
index 000000000000..587273e35acf
--- /dev/null
+++ b/include/linux/mfd/hi6421-pmic.h
@@ -0,0 +1,41 @@
+/*
+ * Header file for device driver Hi6421 PMIC
+ *
+ * Copyright (c) <2011-2014> HiSilicon Technologies Co., Ltd.
+ * http://www.hisilicon.com
+ * Copyright (c) <2013-2014> Linaro Ltd.
+ * http://www.linaro.org
+ *
+ * Author: Guodong Xu <guodong.xu@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __HI6421_PMIC_H
+#define __HI6421_PMIC_H
+
+/* Hi6421 registers are mapped to memory bus in 4 bytes stride */
+#define HI6421_REG_TO_BUS_ADDR(x) (x << 2)
+
+/* Hi6421 maximum register number */
+#define HI6421_REG_MAX 0xFF
+
+/* Hi6421 OCP (over current protection) and DEB (debounce) control register */
+#define HI6421_OCP_DEB_CTRL_REG HI6421_REG_TO_BUS_ADDR(0x51)
+#define HI6421_OCP_DEB_SEL_MASK 0x0C
+#define HI6421_OCP_DEB_SEL_8MS 0x00
+#define HI6421_OCP_DEB_SEL_16MS 0x04
+#define HI6421_OCP_DEB_SEL_32MS 0x08
+#define HI6421_OCP_DEB_SEL_64MS 0x0C
+#define HI6421_OCP_EN_DEBOUNCE_MASK 0x02
+#define HI6421_OCP_EN_DEBOUNCE_ENABLE 0x02
+#define HI6421_OCP_AUTO_STOP_MASK 0x01
+#define HI6421_OCP_AUTO_STOP_ENABLE 0x01
+
+struct hi6421_pmic {
+ struct regmap *regmap;
+};
+
+#endif /* __HI6421_PMIC_H */
--
cgit v1.2.1
From 0b496b4c95c74ba795bc642a6092263ebf905759 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Fri, 5 Sep 2014 22:16:18 +0100
Subject: mfd: tps65217: Tell regmap what registers are valid
Allow regmap to provide debugfs access to the register map by telling it
what registers are valid.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/tps65217.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h
index 95d6938737fd..ac7fba44d7e4 100644
--- a/include/linux/mfd/tps65217.h
+++ b/include/linux/mfd/tps65217.h
@@ -60,6 +60,8 @@
#define TPS65217_REG_SEQ5 0X1D
#define TPS65217_REG_SEQ6 0X1E
+#define TPS65217_REG_MAX TPS65217_REG_SEQ6
+
/* Register field definitions */
#define TPS65217_CHIPID_CHIP_MASK 0xF0
#define TPS65217_CHIPID_REV_MASK 0x0F
--
cgit v1.2.1
From f0933a60d1902c918249d11fb6d9a5ffd581ef5b Mon Sep 17 00:00:00 2001
From: Jeff Lance <j-lance1@ti.com>
Date: Thu, 4 Sep 2014 19:01:57 +0200
Subject: mfd: ti_am335x_tscadc: Update logic in CTRL register for 5-wire TS
The logic in AFE_Pen_Ctrl bitmask in the CTRL register is different for five
wire versus four or eight wire touschscreens. This patch should fix this for
five-wire touch screens. There should be no change needed here for four and
eight wire tousch screens.
Signed-off-by: Jeff Lance <j-lance1@ti.com>
[bigeasy: keep the change mfd only]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/ti_am335x_tscadc.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index fb96c84dada5..e2e70053470e 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -155,6 +155,7 @@ struct ti_tscadc_dev {
void __iomem *tscadc_base;
int irq;
int used_cells; /* 1-2 */
+ int tsc_wires;
int tsc_cell; /* -1 if not used */
int adc_cell; /* -1 if not used */
struct mfd_cell cells[TSCADC_CELLS];
--
cgit v1.2.1
From 6ab3430129e258ea31dd214adf1c760dfafde67a Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 16 Sep 2014 14:52:36 +0300
Subject: mfd: Add ACPI support
If an MFD device is backed by ACPI namespace, we should allow subdevice
drivers to access their corresponding ACPI companion devices through normal
means (e.g using ACPI_COMPANION()).
This patch adds such support to the MFD core. If the MFD parent device
does not specify any ACPI _HID/_CID for the child device, the child
device will share the parent ACPI companion device. Otherwise the child
device will be assigned with the corresponding ACPI companion, if found
in the namespace below the parent.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/core.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index f543de91ce19..73e1709d4c09 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -44,6 +44,9 @@ struct mfd_cell {
*/
const char *of_compatible;
+ /* Matches ACPI PNP id, either _HID or _CID */
+ const char *acpi_pnpid;
+
/*
* These resources can be specified relative to the parent device.
* For accessing hardware you should use resources from the platform dev
--
cgit v1.2.1
From 5c2cacc1028917168b0f7650008dceaa6f7e3fe2 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Date: Wed, 24 Sep 2014 09:47:27 -0300
Subject: [media] v4l2-dv-timings: fix a sparse warning
This is detected with:
gcc-4.8.3-7.fc20.x86_64
sparse-0.5.0-3.fc20.x86_64
drivers/media/v4l2-core/v4l2-dv-timings.c:34:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:35:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:36:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:37:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:38:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:39:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:40:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:41:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:42:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:43:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:44:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:45:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:46:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:47:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:48:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:49:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:50:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:51:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:52:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:53:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:54:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:55:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:56:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:57:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:58:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:59:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:60:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:61:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:62:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:63:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:64:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:65:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:66:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:67:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:68:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:69:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:70:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:71:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:72:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:73:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:74:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:75:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:76:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:77:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:78:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:79:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:80:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:81:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:82:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:83:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:84:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:85:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:86:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:87:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:88:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:89:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:90:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:91:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:92:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:93:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:94:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:95:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:96:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:97:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:98:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:99:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:100:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:101:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:102:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:103:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:104:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:105:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:106:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:107:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:108:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:109:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:110:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:111:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:112:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:113:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:114:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:115:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:116:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:117:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:118:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:119:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:120:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:121:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:122:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:123:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:124:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:125:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:126:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:127:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:128:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:129:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:130:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:131:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:132:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:133:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:134:9: error: unknown field name in initializer
drivers/media/v4l2-core/v4l2-dv-timings.c:135:9: error: too many errors
drivers/media/usb/hdpvr/hdpvr-video.c:42:9: error: unknown field name in initializer
drivers/media/usb/hdpvr/hdpvr-video.c:43:9: error: unknown field name in initializer
drivers/media/usb/hdpvr/hdpvr-video.c:44:9: error: unknown field name in initializer
drivers/media/usb/hdpvr/hdpvr-video.c:45:9: error: unknown field name in initializer
drivers/media/usb/hdpvr/hdpvr-video.c:46:9: error: unknown field name in initializer
drivers/media/usb/hdpvr/hdpvr-video.c:47:9: error: unknown field name in initializer
drivers/media/usb/hdpvr/hdpvr-video.c:48:9: error: unknown field name in initializer
drivers/media/usb/hdpvr/hdpvr-video.c:49:9: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:484:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:485:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:486:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:487:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:488:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:489:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:490:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:491:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:492:18: error: unknown field name in initializer
drivers/media/platform/s5p-tv/hdmi_drv.c:493:18: error: unknown field name in initializer
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/v4l2-dv-timings.h | 9 ---------
1 file changed, 9 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/v4l2-dv-timings.h b/include/uapi/linux/v4l2-dv-timings.h
index 6c8f159e416e..6a0764c89fcb 100644
--- a/include/uapi/linux/v4l2-dv-timings.h
+++ b/include/uapi/linux/v4l2-dv-timings.h
@@ -21,17 +21,8 @@
#ifndef _V4L2_DV_TIMINGS_H
#define _V4L2_DV_TIMINGS_H
-#if __GNUC__ < 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ < 6))
-/* Sadly gcc versions older than 4.6 have a bug in how they initialize
- anonymous unions where they require additional curly brackets.
- This violates the C1x standard. This workaround adds the curly brackets
- if needed. */
#define V4L2_INIT_BT_TIMINGS(_width, args...) \
{ .bt = { _width , ## args } }
-#else
-#define V4L2_INIT_BT_TIMINGS(_width, args...) \
- .bt = { _width , ## args }
-#endif
/* CEA-861-E timings (i.e. standard HDTV timings) */
--
cgit v1.2.1
From 234abab143aef82c0ef1f2de409c0db96b666f3c Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 10 Sep 2014 21:29:56 +0200
Subject: tty: serial: 8250_core: allow to set ->throttle / ->unthrottle
callbacks
The OMAP UART provides support for HW assisted flow control. What is
missing is the support to throttle / unthrottle callbacks which are used
by the omap-serial driver at the moment.
This patch adds the callbacks. It should be safe to add them since they
are only invoked from the serial_core (uart_throttle()) if the feature
flags are set.
Reviewed-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 204c452a7567..21c2e05c1bc3 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -125,6 +125,8 @@ struct uart_port {
struct ktermios *old);
int (*startup)(struct uart_port *port);
void (*shutdown)(struct uart_port *port);
+ void (*throttle)(struct uart_port *port);
+ void (*unthrottle)(struct uart_port *port);
int (*handle_irq)(struct uart_port *);
void (*pm)(struct uart_port *, unsigned int state,
unsigned int old);
--
cgit v1.2.1
From d74d5d1b7288ff9d4439c8c7e0e314cde9743467 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 10 Sep 2014 21:29:57 +0200
Subject: tty: serial: 8250_core: add run time pm
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
While comparing the OMAP-serial and the 8250 part of this I noticed that
the latter does not use run time-pm. Here are the pieces. It is
basically a get before first register access and a last_busy + put after
last access. This has to be enabled from userland _and_ UART_CAP_RPM is
required for this.
The runtime PM can usually work transparently in the background however
there is one exception to this: After serial8250_tx_chars() completes
there still may be unsent bytes in the FIFO (depending on CPU speed vs
baud rate + flow control). Even if the TTY-buffer is empty we do not
want RPM to disable the device because it won't send the remaining
bytes. Instead we leave serial8250_tx_chars() with RPM enabled and wait
for the FIFO empty interrupt. Once we enter serial8250_tx_chars() with
an empty buffer we know that the FIFO is empty and since we are not going
to send anything, we can disable the device.
That xchg() is to ensure that serial8250_tx_chars() can be called
multiple times and only the first invocation will actually invoke the
runtime PM function. So that the last invocation of __stop_tx() will
disable runtime pm.
NOTE: do not enable RPM on the device unless you know what you do! If
the device goes idle, it won't be woken up by incomming RX data _unless_
there is a wakeup irq configured which is usually the RX pin configure
for wakeup via the reset module. The RX activity will then wake up the
device from idle. However the first character is garbage and lost. The
following bytes will be received once the device is up in time. On the
beagle board xm (omap3) it takes approx 13ms from the first wakeup byte
until the first byte that is received properly if the device was in
core-off.
v5…v8:
- drop RPM from serial8250_set_mctrl() it will be used in
restore path which already has RPM active and holds
dev->power.lock
v4…v5:
- add a wrapper around rpm function and introduce UART_CAP_RPM
to ensure RPM put is invoked after the TX FIFO is empty.
v3…v4:
- added runtime to the console code
- removed device_may_wakeup() from serial8250_set_sleep()
Cc: mika.westerberg@linux.intel.com
Reviewed-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_8250.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 6fc9d7bee05e..c267412a3ef4 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -84,6 +84,7 @@ struct uart_8250_port {
unsigned char mcr_mask; /* mask of user bits */
unsigned char mcr_force; /* mask of forced bits */
unsigned char cur_iotype; /* Running I/O type */
+ unsigned char rpm_tx_active;
/*
* Some bits in registers are cleared on a read, so they must
--
cgit v1.2.1
From 7276ca3fa23864133f5ee7431c51546d9b7f695f Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 22 Sep 2014 13:28:16 +0200
Subject: netfilter: bridge: nf_bridge_copy_header as static inline in header
Move nf_bridge_copy_header() as static inline in netfilter_bridge.h
header file. This patch prepares the modularization of the br_netfilter
code.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/linux/netfilter_bridge.h | 48 +++++++++++++++++++++++++++++++---------
1 file changed, 38 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index 8ab1c278b66d..fe996d59de64 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -24,16 +24,6 @@ enum nf_br_hook_priorities {
#define BRNF_8021Q 0x10
#define BRNF_PPPoE 0x20
-/* Only used in br_forward.c */
-int nf_bridge_copy_header(struct sk_buff *skb);
-static inline int nf_bridge_maybe_copy_header(struct sk_buff *skb)
-{
- if (skb->nf_bridge &&
- skb->nf_bridge->mask & (BRNF_BRIDGED | BRNF_BRIDGED_DNAT))
- return nf_bridge_copy_header(skb);
- return 0;
-}
-
static inline unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb)
{
switch (skb->protocol) {
@@ -46,6 +36,44 @@ static inline unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb)
}
}
+static inline void nf_bridge_update_protocol(struct sk_buff *skb)
+{
+ if (skb->nf_bridge->mask & BRNF_8021Q)
+ skb->protocol = htons(ETH_P_8021Q);
+ else if (skb->nf_bridge->mask & BRNF_PPPoE)
+ skb->protocol = htons(ETH_P_PPP_SES);
+}
+
+/* Fill in the header for fragmented IP packets handled by
+ * the IPv4 connection tracking code.
+ *
+ * Only used in br_forward.c
+ */
+static inline int nf_bridge_copy_header(struct sk_buff *skb)
+{
+ int err;
+ unsigned int header_size;
+
+ nf_bridge_update_protocol(skb);
+ header_size = ETH_HLEN + nf_bridge_encap_header_len(skb);
+ err = skb_cow_head(skb, header_size);
+ if (err)
+ return err;
+
+ skb_copy_to_linear_data_offset(skb, -header_size,
+ skb->nf_bridge->data, header_size);
+ __skb_push(skb, nf_bridge_encap_header_len(skb));
+ return 0;
+}
+
+static inline int nf_bridge_maybe_copy_header(struct sk_buff *skb)
+{
+ if (skb->nf_bridge &&
+ skb->nf_bridge->mask & (BRNF_BRIDGED | BRNF_BRIDGED_DNAT))
+ return nf_bridge_copy_header(skb);
+ return 0;
+}
+
static inline unsigned int nf_bridge_mtu_reduction(const struct sk_buff *skb)
{
if (unlikely(skb->nf_bridge->mask & BRNF_PPPoE))
--
cgit v1.2.1
From 34666d467cbf1e2e3c7bb15a63eccfb582cdd71f Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 18 Sep 2014 11:29:03 +0200
Subject: netfilter: bridge: move br_netfilter out of the core
Jesper reported that br_netfilter always registers the hooks since
this is part of the bridge core. This harms performance for people that
don't need this.
This patch modularizes br_netfilter so it can be rmmod'ed, thus,
the hooks can be unregistered. I think the bridge netfilter should have
been a separated module since the beginning, Patrick agreed on that.
Note that this is breaking compatibility for users that expect that
bridge netfilter is going to be available after explicitly 'modprobe
bridge' or via automatic load through brctl.
However, the damage can be easily undone by modprobing br_netfilter.
The bridge core also spots a message to provide a clue to people that
didn't notice that this has been deprecated.
On top of that, the plan is that nftables will not rely on this software
layer, but integrate the connection tracking into the bridge layer to
enable stateful filtering and NAT, which is was bridge netfilter users
seem to require.
This patch still keeps the fake_dst_ops in the bridge core, since this
is required by when the bridge port is initialized. So we can safely
modprobe/rmmod br_netfilter anytime.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Florian Westphal <fw@strlen.de>
---
include/linux/netfilter_bridge.h | 2 +-
include/linux/skbuff.h | 12 ++++++------
include/net/neighbour.h | 2 +-
include/net/netfilter/ipv4/nf_reject.h | 2 +-
include/net/netfilter/ipv6/nf_reject.h | 2 +-
5 files changed, 10 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index fe996d59de64..c755e4971fa3 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -15,7 +15,7 @@ enum nf_br_hook_priorities {
NF_BR_PRI_LAST = INT_MAX,
};
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
#define BRNF_PKT_TYPE 0x01
#define BRNF_BRIDGED_DNAT 0x02
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 07c9fdd0c126..c4ff43f84573 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -156,7 +156,7 @@ struct nf_conntrack {
};
#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
struct nf_bridge_info {
atomic_t use;
unsigned int mask;
@@ -560,7 +560,7 @@ struct sk_buff {
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
struct nf_conntrack *nfct;
#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
struct nf_bridge_info *nf_bridge;
#endif
@@ -2977,7 +2977,7 @@ static inline void nf_conntrack_get(struct nf_conntrack *nfct)
atomic_inc(&nfct->use);
}
#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
static inline void nf_bridge_put(struct nf_bridge_info *nf_bridge)
{
if (nf_bridge && atomic_dec_and_test(&nf_bridge->use))
@@ -2995,7 +2995,7 @@ static inline void nf_reset(struct sk_buff *skb)
nf_conntrack_put(skb->nfct);
skb->nfct = NULL;
#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
nf_bridge_put(skb->nf_bridge);
skb->nf_bridge = NULL;
#endif
@@ -3016,7 +3016,7 @@ static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
nf_conntrack_get(src->nfct);
dst->nfctinfo = src->nfctinfo;
#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
dst->nf_bridge = src->nf_bridge;
nf_bridge_get(src->nf_bridge);
#endif
@@ -3030,7 +3030,7 @@ static inline void nf_copy(struct sk_buff *dst, const struct sk_buff *src)
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
nf_conntrack_put(dst->nfct);
#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
nf_bridge_put(dst->nf_bridge);
#endif
__nf_copy(dst, src);
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 47f425464f84..f60558d0254c 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -373,7 +373,7 @@ static inline int neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
return 0;
}
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
static inline int neigh_hh_bridge(struct hh_cache *hh, struct sk_buff *skb)
{
unsigned int seq, hh_alen;
diff --git a/include/net/netfilter/ipv4/nf_reject.h b/include/net/netfilter/ipv4/nf_reject.h
index 931fbf812171..f713b5a31d62 100644
--- a/include/net/netfilter/ipv4/nf_reject.h
+++ b/include/net/netfilter/ipv4/nf_reject.h
@@ -98,7 +98,7 @@ static void nf_send_reset(struct sk_buff *oldskb, int hook)
nf_ct_attach(nskb, oldskb);
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
/* If we use ip_local_out for bridged traffic, the MAC source on
* the RST will be ours, instead of the destination's. This confuses
* some routers/firewalls, and they drop the packet. So we need to
diff --git a/include/net/netfilter/ipv6/nf_reject.h b/include/net/netfilter/ipv6/nf_reject.h
index 710d17ed70b4..7a10cfcd8e33 100644
--- a/include/net/netfilter/ipv6/nf_reject.h
+++ b/include/net/netfilter/ipv6/nf_reject.h
@@ -147,7 +147,7 @@ static void nf_send_reset6(struct net *net, struct sk_buff *oldskb, int hook)
nf_ct_attach(nskb, oldskb);
-#ifdef CONFIG_BRIDGE_NETFILTER
+#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
/* If we use ip6_local_out for bridged traffic, the MAC source on
* the RST will be ours, instead of the destination's. This confuses
* some routers/firewalls, and they drop the packet. So we need to
--
cgit v1.2.1
From 29075feaf1f55e6b1aa4054b44bc141e8d5eab0b Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 26 Sep 2014 09:05:39 -0700
Subject: next: openrisc: Fix build
openrisc:defconfig fails to build in next-20140926 with the following error.
In file included from arch/openrisc/kernel/signal.c:31:0:
./arch/openrisc/include/asm/syscall.h: In function 'syscall_get_arch':
./arch/openrisc/include/asm/syscall.h:77:9: error: 'EM_OPENRISC' undeclared
Fix by moving EM_OPENRISC to include/uapi/linux/elf-em.h.
Fixes: ce5d112827e5 ("ARCH: AUDIT: implement syscall_get_arch for all arches")
Cc: Eric Paris <eparis@redhat.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
include/uapi/linux/elf-em.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/elf-em.h b/include/uapi/linux/elf-em.h
index 01529bd96438..aa90bc98b6e2 100644
--- a/include/uapi/linux/elf-em.h
+++ b/include/uapi/linux/elf-em.h
@@ -32,6 +32,7 @@
#define EM_V850 87 /* NEC v850 */
#define EM_M32R 88 /* Renesas M32R */
#define EM_MN10300 89 /* Panasonic/MEI MN10300, AM33 */
+#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
#define EM_BLACKFIN 106 /* ADI Blackfin Processor */
#define EM_TI_C6000 140 /* TI C6X DSPs */
#define EM_AARCH64 183 /* ARM 64 bit */
--
cgit v1.2.1
From 99c55f7d47c0dc6fc64729f37bf435abf43f4c60 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Fri, 26 Sep 2014 00:16:57 -0700
Subject: bpf: introduce BPF syscall and maps
BPF syscall is a multiplexor for a range of different operations on eBPF.
This patch introduces syscall with single command to create a map.
Next patch adds commands to access maps.
'maps' is a generic storage of different types for sharing data between kernel
and userspace.
Userspace example:
/* this syscall wrapper creates a map with given type and attributes
* and returns map_fd on success.
* use close(map_fd) to delete the map
*/
int bpf_create_map(enum bpf_map_type map_type, int key_size,
int value_size, int max_entries)
{
union bpf_attr attr = {
.map_type = map_type,
.key_size = key_size,
.value_size = value_size,
.max_entries = max_entries
};
return bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
}
'union bpf_attr' is backwards compatible with future extensions.
More details in Documentation/networking/filter.txt and in manpage
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/bpf.h | 41 +++++++++++++++++++++++++++++++++++++++++
include/uapi/linux/bpf.h | 23 +++++++++++++++++++++++
2 files changed, 64 insertions(+)
create mode 100644 include/linux/bpf.h
(limited to 'include')
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
new file mode 100644
index 000000000000..48014a71f0fe
--- /dev/null
+++ b/include/linux/bpf.h
@@ -0,0 +1,41 @@
+/* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+#ifndef _LINUX_BPF_H
+#define _LINUX_BPF_H 1
+
+#include <uapi/linux/bpf.h>
+#include <linux/workqueue.h>
+
+struct bpf_map;
+
+/* map is generic key/value storage optionally accesible by eBPF programs */
+struct bpf_map_ops {
+ /* funcs callable from userspace (via syscall) */
+ struct bpf_map *(*map_alloc)(union bpf_attr *attr);
+ void (*map_free)(struct bpf_map *);
+};
+
+struct bpf_map {
+ atomic_t refcnt;
+ enum bpf_map_type map_type;
+ u32 key_size;
+ u32 value_size;
+ u32 max_entries;
+ struct bpf_map_ops *ops;
+ struct work_struct work;
+};
+
+struct bpf_map_type_list {
+ struct list_head list_node;
+ struct bpf_map_ops *ops;
+ enum bpf_map_type type;
+};
+
+void bpf_register_map_type(struct bpf_map_type_list *tl);
+void bpf_map_put(struct bpf_map *map);
+
+#endif /* _LINUX_BPF_H */
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 479ed0b6be16..f58a10f9670c 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -62,4 +62,27 @@ struct bpf_insn {
__s32 imm; /* signed immediate constant */
};
+/* BPF syscall commands */
+enum bpf_cmd {
+ /* create a map with given type and attributes
+ * fd = bpf(BPF_MAP_CREATE, union bpf_attr *, u32 size)
+ * returns fd or negative error
+ * map is deleted when fd is closed
+ */
+ BPF_MAP_CREATE,
+};
+
+enum bpf_map_type {
+ BPF_MAP_TYPE_UNSPEC,
+};
+
+union bpf_attr {
+ struct { /* anonymous struct used by BPF_MAP_CREATE command */
+ __u32 map_type; /* one of enum bpf_map_type */
+ __u32 key_size; /* size of key in bytes */
+ __u32 value_size; /* size of value in bytes */
+ __u32 max_entries; /* max number of entries in a map */
+ };
+} __attribute__((aligned(8)));
+
#endif /* _UAPI__LINUX_BPF_H__ */
--
cgit v1.2.1
From 749730ce42a2121e1c88350d69478bff3994b10a Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Fri, 26 Sep 2014 00:16:58 -0700
Subject: bpf: enable bpf syscall on x64 and i386
done as separate commit to ease conflict resolution
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/syscalls.h | 3 ++-
include/uapi/asm-generic/unistd.h | 4 +++-
2 files changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 0f86d85a9ce4..bda9b81357cc 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -65,6 +65,7 @@ struct old_linux_dirent;
struct perf_event_attr;
struct file_handle;
struct sigaltstack;
+union bpf_attr;
#include <linux/types.h>
#include <linux/aio_abi.h>
@@ -875,5 +876,5 @@ asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
const char __user *uargs);
asmlinkage long sys_getrandom(char __user *buf, size_t count,
unsigned int flags);
-
+asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
#endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 11d11bc5c78f..22749c134117 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -705,9 +705,11 @@ __SYSCALL(__NR_seccomp, sys_seccomp)
__SYSCALL(__NR_getrandom, sys_getrandom)
#define __NR_memfd_create 279
__SYSCALL(__NR_memfd_create, sys_memfd_create)
+#define __NR_bpf 280
+__SYSCALL(__NR_bpf, sys_bpf)
#undef __NR_syscalls
-#define __NR_syscalls 280
+#define __NR_syscalls 281
/*
* All syscalls below here should go away really,
--
cgit v1.2.1
From db20fd2b01087bdfbe30bce314a198eefedcc42e Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Fri, 26 Sep 2014 00:16:59 -0700
Subject: bpf: add lookup/update/delete/iterate methods to BPF maps
'maps' is a generic storage of different types for sharing data between kernel
and userspace.
The maps are accessed from user space via BPF syscall, which has commands:
- create a map with given type and attributes
fd = bpf(BPF_MAP_CREATE, union bpf_attr *attr, u32 size)
returns fd or negative error
- lookup key in a given map referenced by fd
err = bpf(BPF_MAP_LOOKUP_ELEM, union bpf_attr *attr, u32 size)
using attr->map_fd, attr->key, attr->value
returns zero and stores found elem into value or negative error
- create or update key/value pair in a given map
err = bpf(BPF_MAP_UPDATE_ELEM, union bpf_attr *attr, u32 size)
using attr->map_fd, attr->key, attr->value
returns zero or negative error
- find and delete element by key in a given map
err = bpf(BPF_MAP_DELETE_ELEM, union bpf_attr *attr, u32 size)
using attr->map_fd, attr->key
- iterate map elements (based on input key return next_key)
err = bpf(BPF_MAP_GET_NEXT_KEY, union bpf_attr *attr, u32 size)
using attr->map_fd, attr->key, attr->next_key
- close(fd) deletes the map
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/bpf.h | 8 ++++++++
include/uapi/linux/bpf.h | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 46 insertions(+)
(limited to 'include')
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 48014a71f0fe..2887f3f9da59 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -9,6 +9,7 @@
#include <uapi/linux/bpf.h>
#include <linux/workqueue.h>
+#include <linux/file.h>
struct bpf_map;
@@ -17,6 +18,12 @@ struct bpf_map_ops {
/* funcs callable from userspace (via syscall) */
struct bpf_map *(*map_alloc)(union bpf_attr *attr);
void (*map_free)(struct bpf_map *);
+ int (*map_get_next_key)(struct bpf_map *map, void *key, void *next_key);
+
+ /* funcs callable from userspace and from eBPF programs */
+ void *(*map_lookup_elem)(struct bpf_map *map, void *key);
+ int (*map_update_elem)(struct bpf_map *map, void *key, void *value);
+ int (*map_delete_elem)(struct bpf_map *map, void *key);
};
struct bpf_map {
@@ -37,5 +44,6 @@ struct bpf_map_type_list {
void bpf_register_map_type(struct bpf_map_type_list *tl);
void bpf_map_put(struct bpf_map *map);
+struct bpf_map *bpf_map_get(struct fd f);
#endif /* _LINUX_BPF_H */
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index f58a10f9670c..395cabd2ca0a 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -70,6 +70,35 @@ enum bpf_cmd {
* map is deleted when fd is closed
*/
BPF_MAP_CREATE,
+
+ /* lookup key in a given map
+ * err = bpf(BPF_MAP_LOOKUP_ELEM, union bpf_attr *attr, u32 size)
+ * Using attr->map_fd, attr->key, attr->value
+ * returns zero and stores found elem into value
+ * or negative error
+ */
+ BPF_MAP_LOOKUP_ELEM,
+
+ /* create or update key/value pair in a given map
+ * err = bpf(BPF_MAP_UPDATE_ELEM, union bpf_attr *attr, u32 size)
+ * Using attr->map_fd, attr->key, attr->value
+ * returns zero or negative error
+ */
+ BPF_MAP_UPDATE_ELEM,
+
+ /* find and delete elem by key in a given map
+ * err = bpf(BPF_MAP_DELETE_ELEM, union bpf_attr *attr, u32 size)
+ * Using attr->map_fd, attr->key
+ * returns zero or negative error
+ */
+ BPF_MAP_DELETE_ELEM,
+
+ /* lookup key in a given map and return next key
+ * err = bpf(BPF_MAP_GET_NEXT_KEY, union bpf_attr *attr, u32 size)
+ * Using attr->map_fd, attr->key, attr->next_key
+ * returns zero and stores next key or negative error
+ */
+ BPF_MAP_GET_NEXT_KEY,
};
enum bpf_map_type {
@@ -83,6 +112,15 @@ union bpf_attr {
__u32 value_size; /* size of value in bytes */
__u32 max_entries; /* max number of entries in a map */
};
+
+ struct { /* anonymous struct used by BPF_MAP_*_ELEM commands */
+ __u32 map_fd;
+ __aligned_u64 key;
+ union {
+ __aligned_u64 value;
+ __aligned_u64 next_key;
+ };
+ };
} __attribute__((aligned(8)));
#endif /* _UAPI__LINUX_BPF_H__ */
--
cgit v1.2.1
From 09756af46893c18839062976c3252e93a1beeba7 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Fri, 26 Sep 2014 00:17:00 -0700
Subject: bpf: expand BPF syscall with program load/unload
eBPF programs are similar to kernel modules. They are loaded by the user
process and automatically unloaded when process exits. Each eBPF program is
a safe run-to-completion set of instructions. eBPF verifier statically
determines that the program terminates and is safe to execute.
The following syscall wrapper can be used to load the program:
int bpf_prog_load(enum bpf_prog_type prog_type,
const struct bpf_insn *insns, int insn_cnt,
const char *license)
{
union bpf_attr attr = {
.prog_type = prog_type,
.insns = ptr_to_u64(insns),
.insn_cnt = insn_cnt,
.license = ptr_to_u64(license),
};
return bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
}
where 'insns' is an array of eBPF instructions and 'license' is a string
that must be GPL compatible to call helper functions marked gpl_only
Upon succesful load the syscall returns prog_fd.
Use close(prog_fd) to unload the program.
User space tests and examples follow in the later patches
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/bpf.h | 38 ++++++++++++++++++++++++++++++++++++++
include/linux/filter.h | 8 ++------
include/uapi/linux/bpf.h | 26 ++++++++++++++++++++++++++
3 files changed, 66 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 2887f3f9da59..92979182be81 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -46,4 +46,42 @@ void bpf_register_map_type(struct bpf_map_type_list *tl);
void bpf_map_put(struct bpf_map *map);
struct bpf_map *bpf_map_get(struct fd f);
+/* eBPF function prototype used by verifier to allow BPF_CALLs from eBPF programs
+ * to in-kernel helper functions and for adjusting imm32 field in BPF_CALL
+ * instructions after verifying
+ */
+struct bpf_func_proto {
+ u64 (*func)(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
+ bool gpl_only;
+};
+
+struct bpf_verifier_ops {
+ /* return eBPF function prototype for verification */
+ const struct bpf_func_proto *(*get_func_proto)(enum bpf_func_id func_id);
+};
+
+struct bpf_prog_type_list {
+ struct list_head list_node;
+ struct bpf_verifier_ops *ops;
+ enum bpf_prog_type type;
+};
+
+void bpf_register_prog_type(struct bpf_prog_type_list *tl);
+
+struct bpf_prog;
+
+struct bpf_prog_aux {
+ atomic_t refcnt;
+ bool is_gpl_compatible;
+ enum bpf_prog_type prog_type;
+ struct bpf_verifier_ops *ops;
+ struct bpf_map **used_maps;
+ u32 used_map_cnt;
+ struct bpf_prog *prog;
+ struct work_struct work;
+};
+
+void bpf_prog_put(struct bpf_prog *prog);
+struct bpf_prog *bpf_prog_get(u32 ufd);
+
#endif /* _LINUX_BPF_H */
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 1a0bc6d134d7..4ffc0958d85e 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -21,6 +21,7 @@
struct sk_buff;
struct sock;
struct seccomp_data;
+struct bpf_prog_aux;
/* ArgX, context and stack frame pointer register positions. Note,
* Arg1, Arg2, Arg3, etc are used as argument mappings of function
@@ -300,17 +301,12 @@ struct bpf_binary_header {
u8 image[];
};
-struct bpf_work_struct {
- struct bpf_prog *prog;
- struct work_struct work;
-};
-
struct bpf_prog {
u16 pages; /* Number of allocated pages */
bool jited; /* Is our filter JIT'ed? */
u32 len; /* Number of filter blocks */
struct sock_fprog_kern *orig_prog; /* Original BPF program */
- struct bpf_work_struct *work; /* Deferred free work struct */
+ struct bpf_prog_aux *aux; /* Auxiliary fields */
unsigned int (*bpf_func)(const struct sk_buff *skb,
const struct bpf_insn *filter);
/* Instructions for interpreter */
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 395cabd2ca0a..424f442016e7 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -99,12 +99,23 @@ enum bpf_cmd {
* returns zero and stores next key or negative error
*/
BPF_MAP_GET_NEXT_KEY,
+
+ /* verify and load eBPF program
+ * prog_fd = bpf(BPF_PROG_LOAD, union bpf_attr *attr, u32 size)
+ * Using attr->prog_type, attr->insns, attr->license
+ * returns fd or negative error
+ */
+ BPF_PROG_LOAD,
};
enum bpf_map_type {
BPF_MAP_TYPE_UNSPEC,
};
+enum bpf_prog_type {
+ BPF_PROG_TYPE_UNSPEC,
+};
+
union bpf_attr {
struct { /* anonymous struct used by BPF_MAP_CREATE command */
__u32 map_type; /* one of enum bpf_map_type */
@@ -121,6 +132,21 @@ union bpf_attr {
__aligned_u64 next_key;
};
};
+
+ struct { /* anonymous struct used by BPF_PROG_LOAD command */
+ __u32 prog_type; /* one of enum bpf_prog_type */
+ __u32 insn_cnt;
+ __aligned_u64 insns;
+ __aligned_u64 license;
+ };
} __attribute__((aligned(8)));
+/* integer value in 'imm' field of BPF_CALL instruction selects which helper
+ * function eBPF program intends to call
+ */
+enum bpf_func_id {
+ BPF_FUNC_unspec,
+ __BPF_FUNC_MAX_ID,
+};
+
#endif /* _UAPI__LINUX_BPF_H__ */
--
cgit v1.2.1
From 51580e798cb61b0fc63fa3aa6c5c975375aa0550 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Fri, 26 Sep 2014 00:17:02 -0700
Subject: bpf: verifier (add docs)
this patch adds all of eBPF verfier documentation and empty bpf_check()
The end goal for the verifier is to statically check safety of the program.
Verifier will catch:
- loops
- out of range jumps
- unreachable instructions
- invalid instructions
- uninitialized register access
- uninitialized stack access
- misaligned stack access
- out of range stack access
- invalid calling convention
More details in Documentation/networking/filter.txt
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/bpf.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 92979182be81..9dfeb36f8971 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -83,5 +83,7 @@ struct bpf_prog_aux {
void bpf_prog_put(struct bpf_prog *prog);
struct bpf_prog *bpf_prog_get(u32 ufd);
+/* verify correctness of eBPF program */
+int bpf_check(struct bpf_prog *fp, union bpf_attr *attr);
#endif /* _LINUX_BPF_H */
--
cgit v1.2.1
From cbd357008604925355ae7b54a09137dabb81b580 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Fri, 26 Sep 2014 00:17:03 -0700
Subject: bpf: verifier (add ability to receive verification log)
add optional attributes for BPF_PROG_LOAD syscall:
union bpf_attr {
struct {
...
__u32 log_level; /* verbosity level of eBPF verifier */
__u32 log_size; /* size of user buffer */
__aligned_u64 log_buf; /* user supplied 'char *buffer' */
};
};
when log_level > 0 the verifier will return its verification log in the user
supplied buffer 'log_buf' which can be used by program author to analyze why
verifier rejected given program.
'Understanding eBPF verifier messages' section of Documentation/networking/filter.txt
provides several examples of these messages, like the program:
BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
BPF_LD_MAP_FD(BPF_REG_1, 0),
BPF_CALL_FUNC(BPF_FUNC_map_lookup_elem),
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0),
BPF_EXIT_INSN(),
will be rejected with the following multi-line message in log_buf:
0: (7a) *(u64 *)(r10 -8) = 0
1: (bf) r2 = r10
2: (07) r2 += -8
3: (b7) r1 = 0
4: (85) call 1
5: (15) if r0 == 0x0 goto pc+1
R0=map_ptr R10=fp
6: (7a) *(u64 *)(r0 +4) = 0
misaligned access off 4 size 8
The format of the output can change at any time as verifier evolves.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/bpf.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 424f442016e7..31b0ac208a52 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -138,6 +138,9 @@ union bpf_attr {
__u32 insn_cnt;
__aligned_u64 insns;
__aligned_u64 license;
+ __u32 log_level; /* verbosity level of verifier */
+ __u32 log_size; /* size of user buffer */
+ __aligned_u64 log_buf; /* user supplied buffer */
};
} __attribute__((aligned(8)));
--
cgit v1.2.1
From 0246e64d9a5fcd4805198de59b9b5cf1f974eb41 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Fri, 26 Sep 2014 00:17:04 -0700
Subject: bpf: handle pseudo BPF_LD_IMM64 insn
eBPF programs passed from userspace are using pseudo BPF_LD_IMM64 instructions
to refer to process-local map_fd. Scan the program for such instructions and
if FDs are valid, convert them to 'struct bpf_map' pointers which will be used
by verifier to check access to maps in bpf_map_lookup/update() calls.
If program passes verifier, convert pseudo BPF_LD_IMM64 into generic by dropping
BPF_PSEUDO_MAP_FD flag.
Note that eBPF interpreter is generic and knows nothing about pseudo insns.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/filter.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 4ffc0958d85e..ca95abd2bed1 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -145,6 +145,12 @@ struct bpf_prog_aux;
.off = 0, \
.imm = ((__u64) (IMM)) >> 32 })
+#define BPF_PSEUDO_MAP_FD 1
+
+/* pseudo BPF_LD_IMM64 insn used to refer to process-local map_fd */
+#define BPF_LD_MAP_FD(DST, MAP_FD) \
+ BPF_LD_IMM64_RAW(DST, BPF_PSEUDO_MAP_FD, MAP_FD)
+
/* Short form of mov based on type, BPF_X: dst_reg = src_reg, BPF_K: dst_reg = imm32 */
#define BPF_MOV64_RAW(TYPE, DST, SRC, IMM) \
--
cgit v1.2.1
From 17a5267067f3c372fec9ffb798d6eaba6b5e6a4c Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Fri, 26 Sep 2014 00:17:06 -0700
Subject: bpf: verifier (add verifier core)
This patch adds verifier core which simulates execution of every insn and
records the state of registers and program stack. Every branch instruction seen
during simulation is pushed into state stack. When verifier reaches BPF_EXIT,
it pops the state from the stack and continues until it reaches BPF_EXIT again.
For program:
1: bpf_mov r1, xxx
2: if (r1 == 0) goto 5
3: bpf_mov r0, 1
4: goto 6
5: bpf_mov r0, 2
6: bpf_exit
The verifier will walk insns: 1, 2, 3, 4, 6
then it will pop the state recorded at insn#2 and will continue: 5, 6
This way it walks all possible paths through the program and checks all
possible values of registers. While doing so, it checks for:
- invalid instructions
- uninitialized register access
- uninitialized stack access
- misaligned stack access
- out of range stack access
- invalid calling convention
- instruction encoding is not using reserved fields
Kernel subsystem configures the verifier with two callbacks:
- bool (*is_valid_access)(int off, int size, enum bpf_access_type type);
that provides information to the verifer which fields of 'ctx'
are accessible (remember 'ctx' is the first argument to eBPF program)
- const struct bpf_func_proto *(*get_func_proto)(enum bpf_func_id func_id);
returns argument constraints of kernel helper functions that eBPF program
may call, so that verifier can checks that R1-R5 types match the prototype
More details in Documentation/networking/filter.txt and in kernel/bpf/verifier.c
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/bpf.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
(limited to 'include')
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 9dfeb36f8971..3cf91754a957 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -46,6 +46,31 @@ void bpf_register_map_type(struct bpf_map_type_list *tl);
void bpf_map_put(struct bpf_map *map);
struct bpf_map *bpf_map_get(struct fd f);
+/* function argument constraints */
+enum bpf_arg_type {
+ ARG_ANYTHING = 0, /* any argument is ok */
+
+ /* the following constraints used to prototype
+ * bpf_map_lookup/update/delete_elem() functions
+ */
+ ARG_CONST_MAP_PTR, /* const argument used as pointer to bpf_map */
+ ARG_PTR_TO_MAP_KEY, /* pointer to stack used as map key */
+ ARG_PTR_TO_MAP_VALUE, /* pointer to stack used as map value */
+
+ /* the following constraints used to prototype bpf_memcmp() and other
+ * functions that access data on eBPF program stack
+ */
+ ARG_PTR_TO_STACK, /* any pointer to eBPF program stack */
+ ARG_CONST_STACK_SIZE, /* number of bytes accessed from stack */
+};
+
+/* type of values returned from helper functions */
+enum bpf_return_type {
+ RET_INTEGER, /* function returns integer */
+ RET_VOID, /* function doesn't return anything */
+ RET_PTR_TO_MAP_VALUE_OR_NULL, /* returns a pointer to map elem value or NULL */
+};
+
/* eBPF function prototype used by verifier to allow BPF_CALLs from eBPF programs
* to in-kernel helper functions and for adjusting imm32 field in BPF_CALL
* instructions after verifying
@@ -53,11 +78,33 @@ struct bpf_map *bpf_map_get(struct fd f);
struct bpf_func_proto {
u64 (*func)(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
bool gpl_only;
+ enum bpf_return_type ret_type;
+ enum bpf_arg_type arg1_type;
+ enum bpf_arg_type arg2_type;
+ enum bpf_arg_type arg3_type;
+ enum bpf_arg_type arg4_type;
+ enum bpf_arg_type arg5_type;
+};
+
+/* bpf_context is intentionally undefined structure. Pointer to bpf_context is
+ * the first argument to eBPF programs.
+ * For socket filters: 'struct bpf_context *' == 'struct sk_buff *'
+ */
+struct bpf_context;
+
+enum bpf_access_type {
+ BPF_READ = 1,
+ BPF_WRITE = 2
};
struct bpf_verifier_ops {
/* return eBPF function prototype for verification */
const struct bpf_func_proto *(*get_func_proto)(enum bpf_func_id func_id);
+
+ /* return true if 'size' wide access at offset 'off' within bpf_context
+ * with 'type' (read or write) is allowed
+ */
+ bool (*is_valid_access)(int off, int size, enum bpf_access_type type);
};
struct bpf_prog_type_list {
--
cgit v1.2.1
From 6ea754eb761d9e7a8ac6fa462b05f9e4cf04fb6c Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 22 Sep 2014 11:10:50 -0700
Subject: net: Change netdev_<level> logging functions to return void
No caller or macro uses the return value so make all
the functions return void.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9f5d293a0281..9b7fbacb6296 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3612,22 +3612,22 @@ static inline const char *netdev_reg_state(const struct net_device *dev)
}
__printf(3, 4)
-int netdev_printk(const char *level, const struct net_device *dev,
- const char *format, ...);
+void netdev_printk(const char *level, const struct net_device *dev,
+ const char *format, ...);
__printf(2, 3)
-int netdev_emerg(const struct net_device *dev, const char *format, ...);
+void netdev_emerg(const struct net_device *dev, const char *format, ...);
__printf(2, 3)
-int netdev_alert(const struct net_device *dev, const char *format, ...);
+void netdev_alert(const struct net_device *dev, const char *format, ...);
__printf(2, 3)
-int netdev_crit(const struct net_device *dev, const char *format, ...);
+void netdev_crit(const struct net_device *dev, const char *format, ...);
__printf(2, 3)
-int netdev_err(const struct net_device *dev, const char *format, ...);
+void netdev_err(const struct net_device *dev, const char *format, ...);
__printf(2, 3)
-int netdev_warn(const struct net_device *dev, const char *format, ...);
+void netdev_warn(const struct net_device *dev, const char *format, ...);
__printf(2, 3)
-int netdev_notice(const struct net_device *dev, const char *format, ...);
+void netdev_notice(const struct net_device *dev, const char *format, ...);
__printf(2, 3)
-int netdev_info(const struct net_device *dev, const char *format, ...);
+void netdev_info(const struct net_device *dev, const char *format, ...);
#define MODULE_ALIAS_NETDEV(device) \
MODULE_ALIAS("netdev-" device)
@@ -3645,7 +3645,6 @@ do { \
({ \
if (0) \
netdev_printk(KERN_DEBUG, __dev, format, ##args); \
- 0; \
})
#endif
--
cgit v1.2.1
From f4a775d14489a801a5b8b0540e23ab82e2703091 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 22 Sep 2014 16:29:32 -0700
Subject: net: introduce __skb_header_release()
While profiling TCP stack, I noticed one useless atomic operation
in tcp_sendmsg(), caused by skb_header_release().
It turns out all current skb_header_release() users have a fresh skb,
that no other user can see, so we can avoid one atomic operation.
Introduce __skb_header_release() to clearly document this.
This gave me a 1.5 % improvement on TCP_RR workload.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f1bfa3781c75..8eaa62400fca 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1083,6 +1083,7 @@ static inline int skb_header_cloned(const struct sk_buff *skb)
* Drop a reference to the header part of the buffer. This is done
* by acquiring a payload reference. You must not read from the header
* part of skb->data after this.
+ * Note : Check if you can use __skb_header_release() instead.
*/
static inline void skb_header_release(struct sk_buff *skb)
{
@@ -1091,6 +1092,20 @@ static inline void skb_header_release(struct sk_buff *skb)
atomic_add(1 << SKB_DATAREF_SHIFT, &skb_shinfo(skb)->dataref);
}
+/**
+ * __skb_header_release - release reference to header
+ * @skb: buffer to operate on
+ *
+ * Variant of skb_header_release() assuming skb is private to caller.
+ * We can avoid one atomic operation.
+ */
+static inline void __skb_header_release(struct sk_buff *skb)
+{
+ skb->nohdr = 1;
+ atomic_set(&skb_shinfo(skb)->dataref, 1 + (1 << SKB_DATAREF_SHIFT));
+}
+
+
/**
* skb_shared - is the buffer shared
* @skb: buffer to check
--
cgit v1.2.1
From 4565af0d406bed44bc8756230eae8f7caa5e0334 Mon Sep 17 00:00:00 2001
From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Tue, 23 Sep 2014 10:54:32 +0200
Subject: net: optimise csum_replace4()
csum_partial() is a generic function which is not optimised for small fixed
length calculations, and its use requires to store "from" and "to" values in
memory while we already have them available in registers. This also has impact,
especially on RISC processors. In the same spirit as the change done by
Eric Dumazet on csum_replace2(), this patch rewrites inet_proto_csum_replace4()
taking into account RFC1624.
I spotted during a NATted tcp transfert that csum_partial() is one of top 5
consuming functions (around 8%), and the second user of csum_partial() is
inet_proto_csum_replace4().
I have proposed the same modification to inet_proto_csum_replace4() in another
patch.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/checksum.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/checksum.h b/include/net/checksum.h
index 87cb1903640d..6465bae80a4f 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -122,9 +122,7 @@ static inline __wsum csum_partial_ext(const void *buff, int len, __wsum sum)
static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
{
- __be32 diff[] = { ~from, to };
-
- *sum = csum_fold(csum_partial(diff, sizeof(diff), ~csum_unfold(*sum)));
+ *sum = csum_fold(csum_add(csum_sub(~csum_unfold(*sum), from), to));
}
/* Implements RFC 1624 (Incremental Internet Checksum)
--
cgit v1.2.1
From c873d14d30b838a516a94967242322d4b73e79e7 Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Fri, 5 Sep 2014 15:21:34 +0300
Subject: clk: add gpio gated clock
The added gpio-gate-clock is a basic clock that can be enabled and
disabled trough a gpio output. The DT binding document for the clock
is also added. For EPROBE_DEFER handling the registering of the clock
has to be delayed until of_clk_get() call time.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
include/linux/clk-provider.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
(limited to 'include')
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 411dd7eb2653..ec1581bd94cd 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -488,6 +488,28 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
struct clk_hw *gate_hw, const struct clk_ops *gate_ops,
unsigned long flags);
+/***
+ * struct clk_gpio_gate - gpio gated clock
+ *
+ * @hw: handle between common and hardware-specific interfaces
+ * @gpiod: gpio descriptor
+ *
+ * Clock with a gpio control for enabling and disabling the parent clock.
+ * Implements .enable, .disable and .is_enabled
+ */
+
+struct clk_gpio {
+ struct clk_hw hw;
+ struct gpio_desc *gpiod;
+};
+
+extern const struct clk_ops clk_gpio_gate_ops;
+struct clk *clk_register_gpio_gate(struct device *dev, const char *name,
+ const char *parent_name, struct gpio_desc *gpio,
+ unsigned long flags);
+
+void of_gpio_clk_gate_setup(struct device_node *node);
+
/**
* clk_register - allocate a new clock, register it and return an opaque cookie
* @dev: device that is registering this clock
--
cgit v1.2.1
From e59c5371fb9d8268d1c043172e88cecab9dc934f Mon Sep 17 00:00:00 2001
From: Mike Turquette <mturquette@linaro.org>
Date: Tue, 18 Feb 2014 21:21:25 -0800
Subject: clk: introduce clk_set_phase function & callback
A common operation for a clock signal generator is to shift the phase of
that signal. This patch introduces a new function to the clk.h API to
dynamically adjust the phase of a clock signal. Additionally this patch
introduces support for the new function in the common clock framework
via the .set_phase call back in struct clk_ops.
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
---
include/linux/clk-private.h | 1 +
include/linux/clk-provider.h | 5 +++++
include/linux/clk.h | 29 +++++++++++++++++++++++++++++
3 files changed, 35 insertions(+)
(limited to 'include')
diff --git a/include/linux/clk-private.h b/include/linux/clk-private.h
index efbf70b9fd84..845be30be50f 100644
--- a/include/linux/clk-private.h
+++ b/include/linux/clk-private.h
@@ -46,6 +46,7 @@ struct clk {
unsigned int enable_count;
unsigned int prepare_count;
unsigned long accuracy;
+ int phase;
struct hlist_head children;
struct hlist_node child_node;
unsigned int notifier_count;
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 411dd7eb2653..201a6195a3eb 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -129,6 +129,10 @@ struct dentry;
* set then clock accuracy will be initialized to parent accuracy
* or 0 (perfect clock) if clock has no parent.
*
+ * @set_phase: Shift the phase this clock signal in degrees specified
+ * by the second argument. Valid values for degrees are
+ * 0-359. Return 0 on success, otherwise -EERROR.
+ *
* @init: Perform platform-specific initialization magic.
* This is not not used by any of the basic clock types.
* Please consider other ways of solving initialization problems
@@ -177,6 +181,7 @@ struct clk_ops {
unsigned long parent_rate, u8 index);
unsigned long (*recalc_accuracy)(struct clk_hw *hw,
unsigned long parent_accuracy);
+ int (*set_phase)(struct clk_hw *hw, int degrees);
void (*init)(struct clk_hw *hw);
int (*debug_init)(struct clk_hw *hw, struct dentry *dentry);
};
diff --git a/include/linux/clk.h b/include/linux/clk.h
index fb5e097d8f72..38bdedd3e389 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -106,6 +106,25 @@ int clk_notifier_unregister(struct clk *clk, struct notifier_block *nb);
*/
long clk_get_accuracy(struct clk *clk);
+/**
+ * clk_set_phase - adjust the phase shift of a clock signal
+ * @clk: clock signal source
+ * @degrees: number of degrees the signal is shifted
+ *
+ * Shifts the phase of a clock signal by the specified degrees. Returns 0 on
+ * success, -EERROR otherwise.
+ */
+int clk_set_phase(struct clk *clk, int degrees);
+
+/**
+ * clk_get_phase - return the phase shift of a clock signal
+ * @clk: clock signal source
+ *
+ * Returns the phase shift of a clock node in degrees, otherwise returns
+ * -EERROR.
+ */
+int clk_get_phase(struct clk *clk);
+
#else
static inline long clk_get_accuracy(struct clk *clk)
@@ -113,6 +132,16 @@ static inline long clk_get_accuracy(struct clk *clk)
return -ENOTSUPP;
}
+static inline long clk_set_phase(struct clk *clk, int phase)
+{
+ return -ENOTSUPP;
+}
+
+static inline long clk_get_phase(struct clk *clk)
+{
+ return -ENOTSUPP;
+}
+
#endif
/**
--
cgit v1.2.1
From 355bb165cd8bad2500df37437a9121f0177b6741 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Sat, 30 Aug 2014 21:18:00 +0200
Subject: clk: Include of.h in clock-provider.h
CLK_OF_DECLARE relies on OF_DECLARE_1 that is defined in of.h. Fixes build
errors when one use CLK_OF_DECLARE but doesn't include of.h
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
---
include/linux/clk-provider.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 201a6195a3eb..69b20d4c1e1a 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -13,6 +13,7 @@
#include <linux/clk.h>
#include <linux/io.h>
+#include <linux/of.h>
#ifdef CONFIG_COMMON_CLK
--
cgit v1.2.1
From 9824cf73c3a5e677bee6fcba43c4807e01ff1b4a Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Mon, 14 Jul 2014 13:53:27 +0200
Subject: clk: Add a function to retrieve phase
The current phase API doesn't look into the actual hardware to get the phase
value, but will rather get it from a variable only set by the set_phase
function.
This will cause issue when the client driver will never call the set_phase
function, where we can end up having a reported phase that will not match what
the hardware has been programmed to by the bootloader or what phase is
programmed out of reset.
Add a new get_phase function for the drivers to implement so that we can get
this value.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
---
include/linux/clk-provider.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 69b20d4c1e1a..abec961092a7 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -130,6 +130,10 @@ struct dentry;
* set then clock accuracy will be initialized to parent accuracy
* or 0 (perfect clock) if clock has no parent.
*
+ * @get_phase: Queries the hardware to get the current phase of a clock.
+ * Returned values are 0-359 degrees on success, negative
+ * error codes on failure.
+ *
* @set_phase: Shift the phase this clock signal in degrees specified
* by the second argument. Valid values for degrees are
* 0-359. Return 0 on success, otherwise -EERROR.
@@ -182,6 +186,7 @@ struct clk_ops {
unsigned long parent_rate, u8 index);
unsigned long (*recalc_accuracy)(struct clk_hw *hw,
unsigned long parent_accuracy);
+ int (*get_phase)(struct clk_hw *hw);
int (*set_phase)(struct clk_hw *hw, int degrees);
void (*init)(struct clk_hw *hw);
int (*debug_init)(struct clk_hw *hw, struct dentry *dentry);
--
cgit v1.2.1
From e7258c1a269e0967856c81d182c286a78f5ecf15 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:19:55 -0400
Subject: block: Get rid of bdev_integrity_enabled()
bdev_integrity_enabled() is only used by bio_integrity_enabled().
Combine these two functions.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index b39e5000ff58..63e399b4fde5 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -666,7 +666,7 @@ struct biovec_slab {
extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int);
extern void bio_integrity_free(struct bio *);
extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
-extern int bio_integrity_enabled(struct bio *bio);
+extern bool bio_integrity_enabled(struct bio *bio);
extern int bio_integrity_set_tag(struct bio *, void *, unsigned int);
extern int bio_integrity_get_tag(struct bio *, void *, unsigned int);
extern int bio_integrity_prep(struct bio *);
@@ -685,9 +685,9 @@ static inline int bio_integrity(struct bio *bio)
return 0;
}
-static inline int bio_integrity_enabled(struct bio *bio)
+static inline bool bio_integrity_enabled(struct bio *bio)
{
- return 0;
+ return false;
}
static inline int bioset_integrity_create(struct bio_set *bs, int pool_size)
--
cgit v1.2.1
From 180b2f95dd331010a9930a65c8a18d6d81b94dc1 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:19:56 -0400
Subject: block: Replace bi_integrity with bi_special
For commands like REQ_COPY we need a way to pass extra information along
with each bio. Like integrity metadata this information must be
available at the bottom of the stack so bi_private does not suffice.
Rename the existing bi_integrity field to bi_special and make it a union
so we can have different bio extensions for each class of command.
We previously used bi_integrity != NULL as a way to identify whether a
bio had integrity metadata or not. Introduce a REQ_INTEGRITY to be the
indicator now that bi_special can contain different things.
In addition, bio_integrity(bio) will now return a pointer to the
integrity payload (when applicable).
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 11 +++++++++--
include/linux/blk_types.h | 8 ++++++--
include/linux/blkdev.h | 7 ++-----
3 files changed, 17 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 63e399b4fde5..a810a74071b2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -293,6 +293,15 @@ static inline unsigned bio_segments(struct bio *bio)
#define bio_get(bio) atomic_inc(&(bio)->bi_cnt)
#if defined(CONFIG_BLK_DEV_INTEGRITY)
+
+static inline struct bio_integrity_payload *bio_integrity(struct bio *bio)
+{
+ if (bio->bi_rw & REQ_INTEGRITY)
+ return bio->bi_integrity;
+
+ return NULL;
+}
+
/*
* bio integrity payload
*/
@@ -661,8 +670,6 @@ struct biovec_slab {
for_each_bio(_bio) \
bip_for_each_vec(_bvl, _bio->bi_integrity, _iter)
-#define bio_integrity(bio) (bio->bi_integrity != NULL)
-
extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int);
extern void bio_integrity_free(struct bio *);
extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index bb7d66460e7a..6a5d2f2de1b9 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -78,9 +78,11 @@ struct bio {
struct io_context *bi_ioc;
struct cgroup_subsys_state *bi_css;
#endif
+ union {
#if defined(CONFIG_BLK_DEV_INTEGRITY)
- struct bio_integrity_payload *bi_integrity; /* data integrity */
+ struct bio_integrity_payload *bi_integrity; /* data integrity */
#endif
+ };
unsigned short bi_vcnt; /* how many bio_vec's */
@@ -162,6 +164,7 @@ enum rq_flag_bits {
__REQ_WRITE_SAME, /* write same block many times */
__REQ_NOIDLE, /* don't anticipate more IO after this one */
+ __REQ_INTEGRITY, /* I/O includes block integrity payload */
__REQ_FUA, /* forced unit access */
__REQ_FLUSH, /* request for cache flush */
@@ -203,13 +206,14 @@ enum rq_flag_bits {
#define REQ_DISCARD (1ULL << __REQ_DISCARD)
#define REQ_WRITE_SAME (1ULL << __REQ_WRITE_SAME)
#define REQ_NOIDLE (1ULL << __REQ_NOIDLE)
+#define REQ_INTEGRITY (1ULL << __REQ_INTEGRITY)
#define REQ_FAILFAST_MASK \
(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
#define REQ_COMMON_MASK \
(REQ_WRITE | REQ_FAILFAST_MASK | REQ_SYNC | REQ_META | REQ_PRIO | \
REQ_DISCARD | REQ_WRITE_SAME | REQ_NOIDLE | REQ_FLUSH | REQ_FUA | \
- REQ_SECURE)
+ REQ_SECURE | REQ_INTEGRITY)
#define REQ_CLONE_MASK REQ_COMMON_MASK
#define BIO_NO_ADVANCE_ITER_MASK (REQ_DISCARD|REQ_WRITE_SAME)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 49f3461e4272..7fcb2caef559 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1514,12 +1514,9 @@ static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)
return disk->integrity;
}
-static inline int blk_integrity_rq(struct request *rq)
+static inline bool blk_integrity_rq(struct request *rq)
{
- if (rq->bio == NULL)
- return 0;
-
- return bio_integrity(rq->bio);
+ return rq->cmd_flags & REQ_INTEGRITY;
}
static inline void blk_queue_max_integrity_segments(struct request_queue *q,
--
cgit v1.2.1
From 8492b68bc4025e7bce1d57761bd7c047efda2f81 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:19:57 -0400
Subject: block: Remove integrity tagging functions
None of the filesystems appear interested in using the integrity tagging
feature. Potentially because very few storage devices actually permit
using the application tag space.
Remove the tagging functions.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 3 ---
include/linux/blkdev.h | 4 ----
2 files changed, 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index a810a74071b2..63a0e53e238c 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -362,7 +362,6 @@ extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *);
extern struct bio *bio_clone_bioset(struct bio *, gfp_t, struct bio_set *bs);
extern struct bio_set *fs_bio_set;
-unsigned int bio_integrity_tag_size(struct bio *bio);
static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
{
@@ -674,8 +673,6 @@ extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, un
extern void bio_integrity_free(struct bio *);
extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
extern bool bio_integrity_enabled(struct bio *bio);
-extern int bio_integrity_set_tag(struct bio *, void *, unsigned int);
-extern int bio_integrity_get_tag(struct bio *, void *, unsigned int);
extern int bio_integrity_prep(struct bio *);
extern void bio_integrity_endio(struct bio *, int);
extern void bio_integrity_advance(struct bio *, unsigned int);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 7fcb2caef559..0bf5d79d9ba0 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1472,14 +1472,10 @@ struct blk_integrity_exchg {
typedef void (integrity_gen_fn) (struct blk_integrity_exchg *);
typedef int (integrity_vrfy_fn) (struct blk_integrity_exchg *);
-typedef void (integrity_set_tag_fn) (void *, void *, unsigned int);
-typedef void (integrity_get_tag_fn) (void *, void *, unsigned int);
struct blk_integrity {
integrity_gen_fn *generate_fn;
integrity_vrfy_fn *verify_fn;
- integrity_set_tag_fn *set_tag_fn;
- integrity_get_tag_fn *get_tag_fn;
unsigned short flags;
unsigned short tuple_size;
--
cgit v1.2.1
From 5f9378fa9ca214977b5bfc12197c67eea450fc40 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:19:58 -0400
Subject: block: Remove bip_buf
bip_buf is not really needed so we can remove it.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 63a0e53e238c..448d8c052cb7 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -310,9 +310,6 @@ struct bio_integrity_payload {
struct bvec_iter bip_iter;
- /* kill - should just use bip_vec */
- void *bip_buf; /* generated integrity data */
-
bio_end_io_t *bip_end_io; /* saved I/O completion fn */
unsigned short bip_slab; /* slab the bip came from */
--
cgit v1.2.1
From 3be91c4a3d090bd700bd6ee5bf457c1bbf189a4f Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:19:59 -0400
Subject: block: Deprecate the use of the term sector in the context of block
integrity
The protection interval is not necessarily tied to the logical block
size of a block device. Stop using the terms "sector" and "sectors".
Going forward we will use the term "seed" to describe the initial
reference tag value for a given I/O. "Interval" will be used to describe
the portion of the data buffer that a given piece of protection
information is associated with.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0bf5d79d9ba0..d364c42dbf17 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1464,9 +1464,9 @@ static inline uint64_t rq_io_start_time_ns(struct request *req)
struct blk_integrity_exchg {
void *prot_buf;
void *data_buf;
- sector_t sector;
+ sector_t seed;
unsigned int data_size;
- unsigned short sector_size;
+ unsigned short interval;
const char *disk_name;
};
@@ -1479,7 +1479,7 @@ struct blk_integrity {
unsigned short flags;
unsigned short tuple_size;
- unsigned short sector_size;
+ unsigned short interval;
unsigned short tag_size;
const char *name;
--
cgit v1.2.1
From 1859308853b19c4daf4afaab910d3d52ac1ec2ff Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:20:01 -0400
Subject: block: Clean up the code used to generate and verify integrity
metadata
Instead of the "operate" parameter we pass in a seed value and a pointer
to a function that can be used to process the integrity metadata. The
generation function is changed to have a return value to fit into this
scheme.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 12 ++++++++++++
include/linux/blkdev.h | 9 ++++-----
2 files changed, 16 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 448d8c052cb7..3fd36660fd10 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -322,6 +322,18 @@ struct bio_integrity_payload {
struct bio_vec *bip_vec;
struct bio_vec bip_inline_vecs[0];/* embedded bvec array */
};
+
+static inline sector_t bip_get_seed(struct bio_integrity_payload *bip)
+{
+ return bip->bip_iter.bi_sector;
+}
+
+static inline void bip_set_seed(struct bio_integrity_payload *bip,
+ sector_t seed)
+{
+ bip->bip_iter.bi_sector = seed;
+}
+
#endif /* CONFIG_BLK_DEV_INTEGRITY */
extern void bio_trim(struct bio *bio, int offset, int size);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index d364c42dbf17..24c1e055b8a7 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1461,7 +1461,7 @@ static inline uint64_t rq_io_start_time_ns(struct request *req)
#define INTEGRITY_FLAG_READ 2 /* verify data integrity on read */
#define INTEGRITY_FLAG_WRITE 4 /* generate data integrity on write */
-struct blk_integrity_exchg {
+struct blk_integrity_iter {
void *prot_buf;
void *data_buf;
sector_t seed;
@@ -1470,12 +1470,11 @@ struct blk_integrity_exchg {
const char *disk_name;
};
-typedef void (integrity_gen_fn) (struct blk_integrity_exchg *);
-typedef int (integrity_vrfy_fn) (struct blk_integrity_exchg *);
+typedef int (integrity_processing_fn) (struct blk_integrity_iter *);
struct blk_integrity {
- integrity_gen_fn *generate_fn;
- integrity_vrfy_fn *verify_fn;
+ integrity_processing_fn *generate_fn;
+ integrity_processing_fn *verify_fn;
unsigned short flags;
unsigned short tuple_size;
--
cgit v1.2.1
From 8288f496eb1b1905c425e92eaf1abbb29119217b Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:20:02 -0400
Subject: block: Add prefix to block integrity profile flags
Add a BLK_ prefix to the integrity profile flags. Also rename the flags
to be more consistent with the generate/verify terminology in the rest
of the integrity code.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 24c1e055b8a7..cf92eb031ae9 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1458,8 +1458,10 @@ static inline uint64_t rq_io_start_time_ns(struct request *req)
#if defined(CONFIG_BLK_DEV_INTEGRITY)
-#define INTEGRITY_FLAG_READ 2 /* verify data integrity on read */
-#define INTEGRITY_FLAG_WRITE 4 /* generate data integrity on write */
+enum blk_integrity_flags {
+ BLK_INTEGRITY_VERIFY = 1 << 0,
+ BLK_INTEGRITY_GENERATE = 1 << 1,
+};
struct blk_integrity_iter {
void *prot_buf;
--
cgit v1.2.1
From 3aec2f41a8baeb70aa77556a4e4dcec7d9d70b4d Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:20:03 -0400
Subject: block: Add a disk flag to block integrity profile
So far we have relied on the app tag size to determine whether a disk
has been formatted with T10 protection information or not. However, not
all target devices provide application tag storage.
Add a flag to the block integrity profile that indicates whether the
disk has been formatted with protection information.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@dev.mellanox.co.il>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index cf92eb031ae9..4600fc63e3fc 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1461,6 +1461,7 @@ static inline uint64_t rq_io_start_time_ns(struct request *req)
enum blk_integrity_flags {
BLK_INTEGRITY_VERIFY = 1 << 0,
BLK_INTEGRITY_GENERATE = 1 << 1,
+ BLK_INTEGRITY_DEVICE_CAPABLE = 1 << 2,
};
struct blk_integrity_iter {
--
cgit v1.2.1
From b1f01388574c9329922f760fc2a7335c2d14b08b Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:20:04 -0400
Subject: block: Relocate bio integrity flags
Move flags affecting the integrity code out of the bio bi_flags and into
the block integrity payload.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 9 ++++++++-
include/linux/blk_types.h | 6 ++----
2 files changed, 10 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 3fd36660fd10..b508cf69206d 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -315,7 +315,7 @@ struct bio_integrity_payload {
unsigned short bip_slab; /* slab the bip came from */
unsigned short bip_vcnt; /* # of integrity bio_vecs */
unsigned short bip_max_vcnt; /* integrity bio_vec slots */
- unsigned bip_owns_buf:1; /* should free bip_buf */
+ unsigned short bip_flags; /* control flags */
struct work_struct bip_work; /* I/O completion */
@@ -323,6 +323,13 @@ struct bio_integrity_payload {
struct bio_vec bip_inline_vecs[0];/* embedded bvec array */
};
+enum bip_flags {
+ BIP_BLOCK_INTEGRITY = 1 << 0, /* block layer owns integrity data */
+ BIP_MAPPED_INTEGRITY = 1 << 1, /* ref tag has been remapped */
+ BIP_CTRL_NOCHECK = 1 << 2, /* disable HBA integrity checking */
+ BIP_DISK_NOCHECK = 1 << 3, /* disable disk integrity checking */
+};
+
static inline sector_t bip_get_seed(struct bio_integrity_payload *bip)
{
return bip->bip_iter.bi_sector;
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 6a5d2f2de1b9..38bc008e4503 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -120,10 +120,8 @@ struct bio {
#define BIO_USER_MAPPED 6 /* contains user pages */
#define BIO_EOPNOTSUPP 7 /* not supported */
#define BIO_NULL_MAPPED 8 /* contains invalid user pages */
-#define BIO_FS_INTEGRITY 9 /* fs owns integrity data, not block layer */
-#define BIO_QUIET 10 /* Make BIO Quiet */
-#define BIO_MAPPED_INTEGRITY 11/* integrity metadata has been remapped */
-#define BIO_SNAP_STABLE 12 /* bio data must be snapshotted during write */
+#define BIO_QUIET 9 /* Make BIO Quiet */
+#define BIO_SNAP_STABLE 10 /* bio data must be snapshotted during write */
/*
* Flags starting here get preserved by bio_reset() - this includes
--
cgit v1.2.1
From aae7df50190a640e51bfe11c93f94741ac82ff0b Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:20:05 -0400
Subject: block: Integrity checksum flag
Make the choice of checksum a per-I/O property by introducing a flag
that can be inspected by the SCSI layer. There are several reasons for
this:
1. It allows us to switch choice of checksum without unloading and
reloading the HBA driver.
2. During error recovery we need to be able to tell the HBA that
checksums read from disk should not be verified and converted to IP
checksums.
3. For error injection purposes we need to be able to write a bad guard
tag to storage. Since the storage device only supports T10 CRC we
need to be able to disable IP checksum conversion on the HBA.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 1 +
include/linux/blkdev.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index b508cf69206d..14bff3fe56d4 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -328,6 +328,7 @@ enum bip_flags {
BIP_MAPPED_INTEGRITY = 1 << 1, /* ref tag has been remapped */
BIP_CTRL_NOCHECK = 1 << 2, /* disable HBA integrity checking */
BIP_DISK_NOCHECK = 1 << 3, /* disable disk integrity checking */
+ BIP_IP_CHECKSUM = 1 << 4, /* IP checksum */
};
static inline sector_t bip_get_seed(struct bio_integrity_payload *bip)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 4600fc63e3fc..773df190a4ee 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1462,6 +1462,7 @@ enum blk_integrity_flags {
BLK_INTEGRITY_VERIFY = 1 << 0,
BLK_INTEGRITY_GENERATE = 1 << 1,
BLK_INTEGRITY_DEVICE_CAPABLE = 1 << 2,
+ BLK_INTEGRITY_IP_CHECKSUM = 1 << 3,
};
struct blk_integrity_iter {
--
cgit v1.2.1
From 4eaf99beadcefbf126fa05e66fb40fca999e09fd Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:20:06 -0400
Subject: block: Don't merge requests if integrity flags differ
We'd occasionally merge requests with conflicting integrity flags.
Introduce a merge helper which checks that the requests have compatible
integrity payloads.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 773df190a4ee..038b40f84c7a 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1497,10 +1497,10 @@ extern int blk_integrity_compare(struct gendisk *, struct gendisk *);
extern int blk_rq_map_integrity_sg(struct request_queue *, struct bio *,
struct scatterlist *);
extern int blk_rq_count_integrity_sg(struct request_queue *, struct bio *);
-extern int blk_integrity_merge_rq(struct request_queue *, struct request *,
- struct request *);
-extern int blk_integrity_merge_bio(struct request_queue *, struct request *,
- struct bio *);
+extern bool blk_integrity_merge_rq(struct request_queue *, struct request *,
+ struct request *);
+extern bool blk_integrity_merge_bio(struct request_queue *, struct request *,
+ struct bio *);
static inline
struct blk_integrity *bdev_get_integrity(struct block_device *bdev)
@@ -1580,15 +1580,15 @@ static inline unsigned short queue_max_integrity_segments(struct request_queue *
{
return 0;
}
-static inline int blk_integrity_merge_rq(struct request_queue *rq,
- struct request *r1,
- struct request *r2)
+static inline bool blk_integrity_merge_rq(struct request_queue *rq,
+ struct request *r1,
+ struct request *r2)
{
return 0;
}
-static inline int blk_integrity_merge_bio(struct request_queue *rq,
- struct request *r,
- struct bio *b)
+static inline bool blk_integrity_merge_bio(struct request_queue *rq,
+ struct request *r,
+ struct bio *b)
{
return 0;
}
--
cgit v1.2.1
From 2341c2f8c33196d02cf5a721746eea4e3c06674a Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:20:07 -0400
Subject: block: Add T10 Protection Information functions
The T10 Protection Information format is also used by some devices that
do not go through the SCSI layer (virtual block devices, NVMe). Relocate
the relevant functions to a block layer library that can be used without
involving SCSI.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/crc-t10dif.h | 5 +++--
include/linux/t10-pi.h | 22 ++++++++++++++++++++++
2 files changed, 25 insertions(+), 2 deletions(-)
create mode 100644 include/linux/t10-pi.h
(limited to 'include')
diff --git a/include/linux/crc-t10dif.h b/include/linux/crc-t10dif.h
index b3cb71f0d3b0..cf53d0773ce3 100644
--- a/include/linux/crc-t10dif.h
+++ b/include/linux/crc-t10dif.h
@@ -6,7 +6,8 @@
#define CRC_T10DIF_DIGEST_SIZE 2
#define CRC_T10DIF_BLOCK_SIZE 1
-__u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer, size_t len);
-__u16 crc_t10dif(unsigned char const *, size_t);
+extern __u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer,
+ size_t len);
+extern __u16 crc_t10dif(unsigned char const *, size_t);
#endif
diff --git a/include/linux/t10-pi.h b/include/linux/t10-pi.h
new file mode 100644
index 000000000000..6a8b9942632d
--- /dev/null
+++ b/include/linux/t10-pi.h
@@ -0,0 +1,22 @@
+#ifndef _LINUX_T10_PI_H
+#define _LINUX_T10_PI_H
+
+#include <linux/types.h>
+#include <linux/blkdev.h>
+
+/*
+ * T10 Protection Information tuple.
+ */
+struct t10_pi_tuple {
+ __be16 guard_tag; /* Checksum */
+ __be16 app_tag; /* Opaque storage */
+ __be32 ref_tag; /* Target LBA or indirect LBA */
+};
+
+
+extern struct blk_integrity t10_pi_type1_crc;
+extern struct blk_integrity t10_pi_type1_ip;
+extern struct blk_integrity t10_pi_type3_crc;
+extern struct blk_integrity t10_pi_type3_ip;
+
+#endif
--
cgit v1.2.1
From 4d742e6230b5ff157422d91d6ae8d2fc1303eb28 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Fri, 5 Sep 2014 11:28:12 +0200
Subject: clk: rockchip: add binding id for ARMCLK
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
---
include/dt-bindings/clock/rk3188-cru-common.h | 1 +
include/dt-bindings/clock/rk3288-cru.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/rk3188-cru-common.h b/include/dt-bindings/clock/rk3188-cru-common.h
index 750ee60e75fb..6a370503c954 100644
--- a/include/dt-bindings/clock/rk3188-cru-common.h
+++ b/include/dt-bindings/clock/rk3188-cru-common.h
@@ -20,6 +20,7 @@
#define PLL_GPLL 4
#define CORE_PERI 5
#define CORE_L2C 6
+#define ARMCLK 7
/* sclk gates (special clocks) */
#define SCLK_UART0 64
diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index ebcb460ea4ad..8f75bf065c1f 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -19,6 +19,7 @@
#define PLL_CPLL 3
#define PLL_GPLL 4
#define PLL_NPLL 5
+#define ARMCLK 6
/* sclk gates (special clocks) */
#define SCLK_GPU 64
--
cgit v1.2.1
From 20e075585973453515be6615b91901c959e0a573 Mon Sep 17 00:00:00 2001
From: Zhangfei Gao <zhangfei.gao@linaro.org>
Date: Tue, 13 May 2014 20:26:59 +0800
Subject: clk: hix5hd2: add complex clk
Support clk of sata, usb and ethernet
Signed-off-by: Jiancheng Xue <xuejiancheng@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
---
include/dt-bindings/clock/hix5hd2-clock.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/hix5hd2-clock.h b/include/dt-bindings/clock/hix5hd2-clock.h
index aad579a75802..e3286695382d 100644
--- a/include/dt-bindings/clock/hix5hd2-clock.h
+++ b/include/dt-bindings/clock/hix5hd2-clock.h
@@ -53,6 +53,15 @@
#define HIX5HD2_MMC_CIU_CLK 130
#define HIX5HD2_MMC_BIU_CLK 131
#define HIX5HD2_MMC_CIU_RST 132
+#define HIX5HD2_FWD_BUS_CLK 133
+#define HIX5HD2_FWD_SYS_CLK 134
+#define HIX5HD2_MAC0_PHY_CLK 135
+
+/* complex */
+#define HIX5HD2_MAC0_CLK 192
+#define HIX5HD2_MAC1_CLK 193
+#define HIX5HD2_SATA_CLK 194
+#define HIX5HD2_USB_CLK 195
#define HIX5HD2_NR_CLKS 256
#endif /* __DTS_HIX5HD2_CLOCK_H */
--
cgit v1.2.1
From cc855dd9994cfd179891cf5b966ebc8051d95a9f Mon Sep 17 00:00:00 2001
From: Jiancheng Xue <xuejiancheng@huawei.com>
Date: Wed, 28 May 2014 11:35:32 +0800
Subject: clk: hix5hd2: add sd clk
Signed-off-by: Jiancheng Xue <xuejiancheng@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
---
include/dt-bindings/clock/hix5hd2-clock.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/hix5hd2-clock.h b/include/dt-bindings/clock/hix5hd2-clock.h
index e3286695382d..5bd4135c9544 100644
--- a/include/dt-bindings/clock/hix5hd2-clock.h
+++ b/include/dt-bindings/clock/hix5hd2-clock.h
@@ -46,6 +46,7 @@
#define HIX5HD2_SFC_MUX 64
#define HIX5HD2_MMC_MUX 65
#define HIX5HD2_FEPHY_MUX 66
+#define HIX5HD2_SD_MUX 67
/* gate clocks */
#define HIX5HD2_SFC_RST 128
@@ -56,6 +57,9 @@
#define HIX5HD2_FWD_BUS_CLK 133
#define HIX5HD2_FWD_SYS_CLK 134
#define HIX5HD2_MAC0_PHY_CLK 135
+#define HIX5HD2_SD_CIU_CLK 136
+#define HIX5HD2_SD_BIU_CLK 137
+#define HIX5HD2_SD_CIU_RST 138
/* complex */
#define HIX5HD2_MAC0_CLK 192
--
cgit v1.2.1
From 1463fba39c2e95803147e1d6e159ea402d965e6f Mon Sep 17 00:00:00 2001
From: Guoxiong Yan <yanguoxiong@huawei.com>
Date: Tue, 17 Jun 2014 17:04:17 +0800
Subject: clk: hix5hd2: add watchdog0 clocks
hix5hd2 add watchdog0 clocks
Signed-off-by: Guoxiong Yan <yanguoxiong@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
---
include/dt-bindings/clock/hix5hd2-clock.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/hix5hd2-clock.h b/include/dt-bindings/clock/hix5hd2-clock.h
index 5bd4135c9544..b8e3c9deda20 100644
--- a/include/dt-bindings/clock/hix5hd2-clock.h
+++ b/include/dt-bindings/clock/hix5hd2-clock.h
@@ -60,6 +60,8 @@
#define HIX5HD2_SD_CIU_CLK 136
#define HIX5HD2_SD_BIU_CLK 137
#define HIX5HD2_SD_CIU_RST 138
+#define HIX5HD2_WDG0_CLK 139
+#define HIX5HD2_WDG0_RST 140
/* complex */
#define HIX5HD2_MAC0_CLK 192
--
cgit v1.2.1
From 45bcf9c6f299ae77c14c2ae8cea3f8e540fe80d1 Mon Sep 17 00:00:00 2001
From: Wei Yan <sledge.yanwei@huawei.com>
Date: Thu, 7 Aug 2014 09:09:13 +0800
Subject: clk: hix5hd2: add I2C clocks
hix5hd2 add I2C clocks (I2C0~i2C5)
Signed-off-by: Wei Yan <sledge.yanwei@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
---
include/dt-bindings/clock/hix5hd2-clock.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/hix5hd2-clock.h b/include/dt-bindings/clock/hix5hd2-clock.h
index b8e3c9deda20..fd29c174ba63 100644
--- a/include/dt-bindings/clock/hix5hd2-clock.h
+++ b/include/dt-bindings/clock/hix5hd2-clock.h
@@ -62,6 +62,18 @@
#define HIX5HD2_SD_CIU_RST 138
#define HIX5HD2_WDG0_CLK 139
#define HIX5HD2_WDG0_RST 140
+#define HIX5HD2_I2C0_CLK 141
+#define HIX5HD2_I2C0_RST 142
+#define HIX5HD2_I2C1_CLK 143
+#define HIX5HD2_I2C1_RST 144
+#define HIX5HD2_I2C2_CLK 145
+#define HIX5HD2_I2C2_RST 146
+#define HIX5HD2_I2C3_CLK 147
+#define HIX5HD2_I2C3_RST 148
+#define HIX5HD2_I2C4_CLK 149
+#define HIX5HD2_I2C4_RST 150
+#define HIX5HD2_I2C5_CLK 151
+#define HIX5HD2_I2C5_RST 152
/* complex */
#define HIX5HD2_MAC0_CLK 192
--
cgit v1.2.1
From 7bced397510ab569d31de4c70b39e13355046387 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Mon, 30 Dec 2013 12:37:29 -0800
Subject: net_dma: simple removal
Per commit "77873803363c net_dma: mark broken" net_dma is no longer used
and there is no plan to fix it.
This is the mechanical removal of bits in CONFIG_NET_DMA ifdef guards.
Reverting the remainder of the net_dma induced changes is deferred to
subsequent patches.
Marked for stable due to Roman's report of a memory leak in
dma_pin_iovec_pages():
https://lkml.org/lkml/2014/9/3/177
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: David Whipple <whipple@securedatainnovations.ch>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: <stable@vger.kernel.org>
Reported-by: Roman Gushchin <klamm@yandex-team.ru>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
include/linux/dmaengine.h | 22 +---------------------
include/linux/skbuff.h | 8 ++------
include/linux/tcp.h | 8 --------
include/net/netdma.h | 32 --------------------------------
include/net/sock.h | 19 +------------------
include/net/tcp.h | 8 --------
6 files changed, 4 insertions(+), 93 deletions(-)
delete mode 100644 include/net/netdma.h
(limited to 'include')
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index c5c92d59e531..3e382ecd1927 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -903,18 +903,6 @@ static inline void dmaengine_put(void)
}
#endif
-#ifdef CONFIG_NET_DMA
-#define net_dmaengine_get() dmaengine_get()
-#define net_dmaengine_put() dmaengine_put()
-#else
-static inline void net_dmaengine_get(void)
-{
-}
-static inline void net_dmaengine_put(void)
-{
-}
-#endif
-
#ifdef CONFIG_ASYNC_TX_DMA
#define async_dmaengine_get() dmaengine_get()
#define async_dmaengine_put() dmaengine_put()
@@ -936,16 +924,8 @@ async_dma_find_channel(enum dma_transaction_type type)
return NULL;
}
#endif /* CONFIG_ASYNC_TX_DMA */
-
-dma_cookie_t dma_async_memcpy_buf_to_buf(struct dma_chan *chan,
- void *dest, void *src, size_t len);
-dma_cookie_t dma_async_memcpy_buf_to_pg(struct dma_chan *chan,
- struct page *page, unsigned int offset, void *kdata, size_t len);
-dma_cookie_t dma_async_memcpy_pg_to_pg(struct dma_chan *chan,
- struct page *dest_pg, unsigned int dest_off, struct page *src_pg,
- unsigned int src_off, size_t len);
void dma_async_tx_descriptor_init(struct dma_async_tx_descriptor *tx,
- struct dma_chan *chan);
+ struct dma_chan *chan);
static inline void async_tx_ack(struct dma_async_tx_descriptor *tx)
{
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5e1e6f2d98c2..bdbf7afad6b7 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -28,7 +28,6 @@
#include <linux/textsearch.h>
#include <net/checksum.h>
#include <linux/rcupdate.h>
-#include <linux/dmaengine.h>
#include <linux/hrtimer.h>
#include <linux/dma-mapping.h>
#include <linux/netdev_features.h>
@@ -515,11 +514,8 @@ struct sk_buff {
/* 6/8 bit hole (depending on ndisc_nodetype presence) */
kmemcheck_bitfield_end(flags2);
-#if defined CONFIG_NET_DMA || defined CONFIG_NET_RX_BUSY_POLL
- union {
- unsigned int napi_id;
- dma_cookie_t dma_cookie;
- };
+#ifdef CONFIG_NET_RX_BUSY_POLL
+ unsigned int napi_id;
#endif
#ifdef CONFIG_NETWORK_SECMARK
__u32 secmark;
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 4ad0706d40eb..90895b8dc7f2 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -19,7 +19,6 @@
#include <linux/skbuff.h>
-#include <linux/dmaengine.h>
#include <net/sock.h>
#include <net/inet_connection_sock.h>
#include <net/inet_timewait_sock.h>
@@ -169,13 +168,6 @@ struct tcp_sock {
struct iovec *iov;
int memory;
int len;
-#ifdef CONFIG_NET_DMA
- /* members for async copy */
- struct dma_chan *dma_chan;
- int wakeup;
- struct dma_pinned_list *pinned_list;
- dma_cookie_t dma_cookie;
-#endif
} ucopy;
u32 snd_wl1; /* Sequence for window update */
diff --git a/include/net/netdma.h b/include/net/netdma.h
deleted file mode 100644
index 8ba8ce284eeb..000000000000
--- a/include/net/netdma.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- */
-#ifndef NETDMA_H
-#define NETDMA_H
-#ifdef CONFIG_NET_DMA
-#include <linux/dmaengine.h>
-#include <linux/skbuff.h>
-
-int dma_skb_copy_datagram_iovec(struct dma_chan* chan,
- struct sk_buff *skb, int offset, struct iovec *to,
- size_t len, struct dma_pinned_list *pinned_list);
-
-#endif /* CONFIG_NET_DMA */
-#endif /* NETDMA_H */
diff --git a/include/net/sock.h b/include/net/sock.h
index b9586a137cad..3353b47f3d40 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -231,7 +231,6 @@ struct cg_proto;
* @sk_receive_queue: incoming packets
* @sk_wmem_alloc: transmit queue bytes committed
* @sk_write_queue: Packet sending queue
- * @sk_async_wait_queue: DMA copied packets
* @sk_omem_alloc: "o" is "option" or "other"
* @sk_wmem_queued: persistent queue size
* @sk_forward_alloc: space allocated forward
@@ -354,10 +353,6 @@ struct sock {
struct sk_filter __rcu *sk_filter;
struct socket_wq __rcu *sk_wq;
-#ifdef CONFIG_NET_DMA
- struct sk_buff_head sk_async_wait_queue;
-#endif
-
#ifdef CONFIG_XFRM
struct xfrm_policy *sk_policy[2];
#endif
@@ -2214,27 +2209,15 @@ void sock_tx_timestamp(struct sock *sk, __u8 *tx_flags);
* sk_eat_skb - Release a skb if it is no longer needed
* @sk: socket to eat this skb from
* @skb: socket buffer to eat
- * @copied_early: flag indicating whether DMA operations copied this data early
*
* This routine must be called with interrupts disabled or with the socket
* locked so that the sk_buff queue operation is ok.
*/
-#ifdef CONFIG_NET_DMA
-static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, bool copied_early)
-{
- __skb_unlink(skb, &sk->sk_receive_queue);
- if (!copied_early)
- __kfree_skb(skb);
- else
- __skb_queue_tail(&sk->sk_async_wait_queue, skb);
-}
-#else
-static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, bool copied_early)
+static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb)
{
__skb_unlink(skb, &sk->sk_receive_queue);
__kfree_skb(skb);
}
-#endif
static inline
struct net *sock_net(const struct sock *sk)
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 8c4dd63134d4..2c2f24ffa383 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -27,7 +27,6 @@
#include <linux/cache.h>
#include <linux/percpu.h>
#include <linux/skbuff.h>
-#include <linux/dmaengine.h>
#include <linux/crypto.h>
#include <linux/cryptohash.h>
#include <linux/kref.h>
@@ -267,7 +266,6 @@ extern int sysctl_tcp_adv_win_scale;
extern int sysctl_tcp_tw_reuse;
extern int sysctl_tcp_frto;
extern int sysctl_tcp_low_latency;
-extern int sysctl_tcp_dma_copybreak;
extern int sysctl_tcp_nometrics_save;
extern int sysctl_tcp_moderate_rcvbuf;
extern int sysctl_tcp_tso_win_divisor;
@@ -1023,12 +1021,6 @@ static inline void tcp_prequeue_init(struct tcp_sock *tp)
tp->ucopy.len = 0;
tp->ucopy.memory = 0;
skb_queue_head_init(&tp->ucopy.prequeue);
-#ifdef CONFIG_NET_DMA
- tp->ucopy.dma_chan = NULL;
- tp->ucopy.wakeup = 0;
- tp->ucopy.pinned_list = NULL;
- tp->ucopy.dma_cookie = 0;
-#endif
}
bool tcp_prequeue(struct sock *sk, struct sk_buff *skb);
--
cgit v1.2.1
From 3f334078567245429540e6461c81c749fce87f70 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Mon, 30 Dec 2013 17:12:07 -0800
Subject: net: make tcp_cleanup_rbuf private
net_dma was the only external user so this can become local to tcp.c
again.
Cc: James Morris <jmorris@namei.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
include/net/tcp.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 2c2f24ffa383..7ffbcbf90a64 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -371,7 +371,6 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
void tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
const struct tcphdr *th, unsigned int len);
void tcp_rcv_space_adjust(struct sock *sk);
-void tcp_cleanup_rbuf(struct sock *sk, int copied);
int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp);
void tcp_twsk_destructor(struct sock *sk);
ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos,
--
cgit v1.2.1
From 24a2d43d8886f5a29c3cf108927f630c545a9a38 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 27 Sep 2014 09:50:55 -0700
Subject: ipv4: rename ip_options_echo to __ip_options_echo()
ip_options_echo() assumes struct ip_options is provided in &IPCB(skb)->opt
Lets break this assumption, but provide a helper to not change all call points.
ip_send_unicast_reply() gets a new struct ip_options pointer.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip.h | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/ip.h b/include/net/ip.h
index fcd9068fb8c3..0bb620702929 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -180,8 +180,10 @@ static inline __u8 ip_reply_arg_flowi_flags(const struct ip_reply_arg *arg)
return (arg->flags & IP_REPLY_ARG_NOSRCCHECK) ? FLOWI_FLAG_ANYSRC : 0;
}
-void ip_send_unicast_reply(struct net *net, struct sk_buff *skb, __be32 daddr,
- __be32 saddr, const struct ip_reply_arg *arg,
+void ip_send_unicast_reply(struct net *net, struct sk_buff *skb,
+ const struct ip_options *sopt,
+ __be32 daddr, __be32 saddr,
+ const struct ip_reply_arg *arg,
unsigned int len);
#define IP_INC_STATS(net, field) SNMP_INC_STATS64((net)->mib.ip_statistics, field)
@@ -511,7 +513,14 @@ int ip_forward(struct sk_buff *skb);
void ip_options_build(struct sk_buff *skb, struct ip_options *opt,
__be32 daddr, struct rtable *rt, int is_frag);
-int ip_options_echo(struct ip_options *dopt, struct sk_buff *skb);
+
+int __ip_options_echo(struct ip_options *dopt, struct sk_buff *skb,
+ const struct ip_options *sopt);
+static inline int ip_options_echo(struct ip_options *dopt, struct sk_buff *skb)
+{
+ return __ip_options_echo(dopt, skb, &IPCB(skb)->opt);
+}
+
void ip_options_fragment(struct sk_buff *skb);
int ip_options_compile(struct net *net, struct ip_options *opt,
struct sk_buff *skb);
--
cgit v1.2.1
From a224772db8420ecb7ce91a9ba5d535ee3a50d982 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 27 Sep 2014 09:50:56 -0700
Subject: ipv6: add a struct inet6_skb_parm param to ipv6_opt_accepted()
ipv6_opt_accepted() assumes IP6CB(skb) holds the struct inet6_skb_parm
that it needs. Lets not assume this, as TCP stack might use a different
place.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ipv6.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 7e247e9b8765..97f472012438 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -288,7 +288,8 @@ struct ipv6_txoptions *ipv6_renew_options(struct sock *sk,
struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
struct ipv6_txoptions *opt);
-bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
+bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb,
+ const struct inet6_skb_parm *opt);
static inline bool ipv6_accept_ra(struct inet6_dev *idev)
{
--
cgit v1.2.1
From 971f10eca186cab238c49daa91f703c5a001b0b1 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 27 Sep 2014 09:50:57 -0700
Subject: tcp: better TCP_SKB_CB layout to reduce cache line misses
TCP maintains lists of skb in write queue, and in receive queues
(in order and out of order queues)
Scanning these lists both in input and output path usually requires
access to skb->next, TCP_SKB_CB(skb)->seq, and TCP_SKB_CB(skb)->end_seq
These fields are currently in two different cache lines, meaning we
waste lot of memory bandwidth when these queues are big and flows
have either packet drops or packet reorders.
We can move TCP_SKB_CB(skb)->header at the end of TCP_SKB_CB, because
this header is not used in fast path. This allows TCP to search much faster
in the skb lists.
Even with regular flows, we save one cache line miss in fast path.
Thanks to Christoph Paasch for noticing we need to cleanup
skb->cb[] (IPCB/IP6CB) before entering IP stack in tx path,
and that I forgot IPCB use in tcp_v4_hnd_req() and tcp_v4_save_options().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index a4201ef216e8..4dc6641ee990 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -696,12 +696,6 @@ static inline u32 tcp_skb_timestamp(const struct sk_buff *skb)
* If this grows please adjust skbuff.h:skbuff->cb[xxx] size appropriately.
*/
struct tcp_skb_cb {
- union {
- struct inet_skb_parm h4;
-#if IS_ENABLED(CONFIG_IPV6)
- struct inet6_skb_parm h6;
-#endif
- } header; /* For incoming frames */
__u32 seq; /* Starting sequence number */
__u32 end_seq; /* SEQ + FIN + SYN + datalen */
__u32 tcp_tw_isn; /* isn chosen by tcp_timewait_state_process() */
@@ -720,6 +714,12 @@ struct tcp_skb_cb {
__u8 ip_dsfield; /* IPv4 tos or IPv6 dsfield */
/* 1 byte hole */
__u32 ack_seq; /* Sequence number ACK'd */
+ union {
+ struct inet_skb_parm h4;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct inet6_skb_parm h6;
+#endif
+ } header; /* For incoming frames */
};
#define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0]))
--
cgit v1.2.1
From cd7d8498c9a5d510c64db38d9f4f4fbc41790f09 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 24 Sep 2014 04:11:22 -0700
Subject: tcp: change tcp_skb_pcount() location
Our goal is to access no more than one cache line access per skb in
a write or receive queue when doing the various walks.
After recent TCP_SKB_CB() reorganizations, it is almost done.
Last part is tcp_skb_pcount() which currently uses
skb_shinfo(skb)->gso_segs, which is a terrible choice, because it needs
3 cache lines in current kernel (skb->head, skb->end, and
shinfo->gso_segs are all in 3 different cache lines, far from skb->cb)
This very simple patch reuses space currently taken by tcp_tw_isn
only in input path, as tcp_skb_pcount is only needed for skb stored in
write queue.
This considerably speeds up tcp_ack(), granted we avoid shinfo->tx_flags
to get SKBTX_ACK_TSTAMP, which seems possible.
This also speeds up all sack processing in general.
This speeds up tcp_sendmsg() because it no longer has to access/dirty
shinfo.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 4dc6641ee990..02a9a2c366bf 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -698,7 +698,16 @@ static inline u32 tcp_skb_timestamp(const struct sk_buff *skb)
struct tcp_skb_cb {
__u32 seq; /* Starting sequence number */
__u32 end_seq; /* SEQ + FIN + SYN + datalen */
- __u32 tcp_tw_isn; /* isn chosen by tcp_timewait_state_process() */
+ union {
+ /* Note : tcp_tw_isn is used in input path only
+ * (isn chosen by tcp_timewait_state_process())
+ *
+ * tcp_gso_segs is used in write queue only,
+ * cf tcp_skb_pcount()
+ */
+ __u32 tcp_tw_isn;
+ __u32 tcp_gso_segs;
+ };
__u8 tcp_flags; /* TCP header flags. (tcp[13]) */
__u8 sacked; /* State flags for SACK/FACK. */
@@ -746,7 +755,17 @@ TCP_ECN_create_request(struct request_sock *req, const struct sk_buff *skb,
*/
static inline int tcp_skb_pcount(const struct sk_buff *skb)
{
- return skb_shinfo(skb)->gso_segs;
+ return TCP_SKB_CB(skb)->tcp_gso_segs;
+}
+
+static inline void tcp_skb_pcount_set(struct sk_buff *skb, int segs)
+{
+ TCP_SKB_CB(skb)->tcp_gso_segs = segs;
+}
+
+static inline void tcp_skb_pcount_add(struct sk_buff *skb, int segs)
+{
+ TCP_SKB_CB(skb)->tcp_gso_segs += segs;
}
/* This is valid iff tcp_skb_pcount() > 1. */
--
cgit v1.2.1
From b2f2af21e37f6d12bd735c27da8942331aa9b3d7 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 24 Sep 2014 17:05:18 -0700
Subject: net: dsa: allow enabling and disable switch ports
Whenever a per-port network device is used/unused, invoke the switch
driver port_enable/port_disable callbacks to allow saving as much power
as possible by disabling unused parts of the switch (RX/TX logic, memory
arrays, PHYs...). We supply a PHY device argument to make sure the
switch driver can act on the PHY device if needed (like putting/taking
the PHY out of deep low power mode).
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index d8054fb4a4df..4f664fe0e42c 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -224,6 +224,14 @@ struct dsa_switch_driver {
*/
int (*suspend)(struct dsa_switch *ds);
int (*resume)(struct dsa_switch *ds);
+
+ /*
+ * Port enable/disable
+ */
+ int (*port_enable)(struct dsa_switch *ds, int port,
+ struct phy_device *phy);
+ void (*port_disable)(struct dsa_switch *ds, int port,
+ struct phy_device *phy);
};
void register_switch_driver(struct dsa_switch_driver *type);
--
cgit v1.2.1
From 7905288f093ad924004609bb89a7ce1597892726 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 24 Sep 2014 17:05:21 -0700
Subject: net: dsa: allow switches driver to implement get/set EEE
Allow switches driver to query and enable/disable EEE on a per-port
basis by implementing the ethtool_{get,set}_eee settings and delegating
these operations to the switch driver.
set_eee() will need to coordinate with the PHY driver to make sure that
EEE is enabled, the link-partner supports it and the auto-negotiation
result is satisfactory.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 4f664fe0e42c..58ad8c6492db 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -232,6 +232,15 @@ struct dsa_switch_driver {
struct phy_device *phy);
void (*port_disable)(struct dsa_switch *ds, int port,
struct phy_device *phy);
+
+ /*
+ * EEE setttings
+ */
+ int (*set_eee)(struct dsa_switch *ds, int port,
+ struct phy_device *phydev,
+ struct ethtool_eee *e);
+ int (*get_eee)(struct dsa_switch *ds, int port,
+ struct ethtool_eee *e);
};
void register_switch_driver(struct dsa_switch_driver *type);
--
cgit v1.2.1
From 18d0264f630e200772bf236ac5747c47e908501e Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Thu, 25 Sep 2014 10:26:37 -0700
Subject: net_sched: remove the first parameter from tcf_exts_destroy()
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <hadi@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/pkt_cls.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 6da46dcf1049..73f9532ee581 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -137,7 +137,7 @@ tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts,
int tcf_exts_validate(struct net *net, struct tcf_proto *tp,
struct nlattr **tb, struct nlattr *rate_tlv,
struct tcf_exts *exts, bool ovr);
-void tcf_exts_destroy(struct tcf_proto *tp, struct tcf_exts *exts);
+void tcf_exts_destroy(struct tcf_exts *exts);
void tcf_exts_change(struct tcf_proto *tp, struct tcf_exts *dst,
struct tcf_exts *src);
int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts);
--
cgit v1.2.1
From 3d9a0d2f8212879407e58d67f460d8920eb6543d Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 25 Sep 2014 23:04:56 -0700
Subject: dql: dql_queued() should write first to reduce bus transactions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
While doing high throughput test on a BQL enabled NIC,
I found a very high cost in ndo_start_xmit() when accessing BQL data.
It turned out the problem was caused by compiler trying to be
smart, but involving a bad MESI transaction :
0.05 │ mov 0xc0(%rax),%edi // LOAD dql->num_queued
0.48 │ mov %edx,0xc8(%rax) // STORE dql->last_obj_cnt = count
58.23 │ add %edx,%edi
0.58 │ cmp %edi,0xc4(%rax)
0.76 │ mov %edi,0xc0(%rax) // STORE dql->num_queued += count
0.72 │ js bd8
I got an incredible 10 % gain [1] by making sure cpu do not attempt
to get the cache line in Shared mode, but directly requests for
ownership.
New code :
mov %edx,0xc8(%rax) // STORE dql->last_obj_cnt = count
add %edx,0xc0(%rax) // RMW dql->num_queued += count
mov 0xc4(%rax),%ecx // LOAD dql->adj_limit
mov 0xc0(%rax),%edx // LOAD dql->num_queued
cmp %edx,%ecx
The TX completion was running from another cpu, with high interrupts
rate.
Note that I am using barrier() as a soft hint, as mb() here could be
too heavy cost.
[1] This was a netperf TCP_STREAM with TSO disabled, but GSO enabled.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/dynamic_queue_limits.h | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/dynamic_queue_limits.h b/include/linux/dynamic_queue_limits.h
index 5621547d631b..a4be70398ce1 100644
--- a/include/linux/dynamic_queue_limits.h
+++ b/include/linux/dynamic_queue_limits.h
@@ -73,14 +73,22 @@ static inline void dql_queued(struct dql *dql, unsigned int count)
{
BUG_ON(count > DQL_MAX_OBJECT);
- dql->num_queued += count;
dql->last_obj_cnt = count;
+
+ /* We want to force a write first, so that cpu do not attempt
+ * to get cache line containing last_obj_cnt, num_queued, adj_limit
+ * in Shared state, but directly does a Request For Ownership
+ * It is only a hint, we use barrier() only.
+ */
+ barrier();
+
+ dql->num_queued += count;
}
/* Returns how many objects can be queued, < 0 indicates over limit. */
static inline int dql_avail(const struct dql *dql)
{
- return dql->adj_limit - dql->num_queued;
+ return ACCESS_ONCE(dql->adj_limit) - ACCESS_ONCE(dql->num_queued);
}
/* Record number of completed objects and recalculate the limit. */
--
cgit v1.2.1
From 55d8694fa82c9b5858ae5a78a210353961f908f9 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Fri, 26 Sep 2014 22:37:32 +0200
Subject: net: tcp: assign tcp cong_ops when tcp sk is created
Split assignment and initialization from one into two functions.
This is required by followup patches that add Datacenter TCP
(DCTCP) congestion control algorithm - we need to be able to
determine if the connection is moderated by DCTCP before the
3WHS has finished.
As we walk the available congestion control list during the
assignment, we are always guaranteed to have Reno present as
it's fixed compiled-in. Therefore, since we're doing the
early assignment, we don't have a real use for the Reno alias
tcp_init_congestion_ops anymore and can thus remove it.
Actual usage of the congestion control operations are being
made after the 3WHS has finished, in some cases however we
can access get_info() via diag if implemented, therefore we
need to zero out the private area for those modules.
Joint work with Daniel Borkmann and Glenn Judd.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Glenn Judd <glenn.judd@morganstanley.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 02a9a2c366bf..f99b0c072ee5 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -824,6 +824,7 @@ struct tcp_congestion_ops {
int tcp_register_congestion_control(struct tcp_congestion_ops *type);
void tcp_unregister_congestion_control(struct tcp_congestion_ops *type);
+void tcp_assign_congestion_control(struct sock *sk);
void tcp_init_congestion_control(struct sock *sk);
void tcp_cleanup_congestion_control(struct sock *sk);
int tcp_set_default_congestion_control(const char *name);
@@ -835,7 +836,6 @@ int tcp_set_congestion_control(struct sock *sk, const char *name);
int tcp_slow_start(struct tcp_sock *tp, u32 acked);
void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w);
-extern struct tcp_congestion_ops tcp_init_congestion_ops;
u32 tcp_reno_ssthresh(struct sock *sk);
void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 acked);
extern struct tcp_congestion_ops tcp_reno;
--
cgit v1.2.1
From 30e502a34b8b21fae2c789da102bd9f6e99fef83 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 26 Sep 2014 22:37:33 +0200
Subject: net: tcp: add flag for ca to indicate that ECN is required
This patch adds a flag to TCP congestion algorithms that allows
for requesting to mark IPv4/IPv6 sockets with transport as ECN
capable, that is, ECT(0), when required by a congestion algorithm.
It is currently used and needed in DataCenter TCP (DCTCP), as it
requires both peers to assert ECT on all IP packets sent - it
uses ECN feedback (i.e. CE, Congestion Encountered information)
from switches inside the data center to derive feedback to the
end hosts.
Therefore, simply add a new flag to icsk_ca_ops. Note that DCTCP's
algorithm/behaviour slightly diverges from RFC3168, therefore this
is only (!) enabled iff the assigned congestion control ops module
has requested this. By that, we can tightly couple this logic really
only to the provided congestion control ops.
Joint work with Florian Westphal and Glenn Judd.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Glenn Judd <glenn.judd@morganstanley.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 61 +++++++++++++++++++++++++++++++++++++++----------------
1 file changed, 44 insertions(+), 17 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index f99b0c072ee5..a12f145cfbc3 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -733,23 +733,6 @@ struct tcp_skb_cb {
#define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0]))
-/* RFC3168 : 6.1.1 SYN packets must not have ECT/ECN bits set
- *
- * If we receive a SYN packet with these bits set, it means a network is
- * playing bad games with TOS bits. In order to avoid possible false congestion
- * notifications, we disable TCP ECN negociation.
- */
-static inline void
-TCP_ECN_create_request(struct request_sock *req, const struct sk_buff *skb,
- struct net *net)
-{
- const struct tcphdr *th = tcp_hdr(skb);
-
- if (net->ipv4.sysctl_tcp_ecn && th->ece && th->cwr &&
- INET_ECN_is_not_ect(TCP_SKB_CB(skb)->ip_dsfield))
- inet_rsk(req)->ecn_ok = 1;
-}
-
/* Due to TSO, an SKB can be composed of multiple actual
* packets. To keep these tracked properly, we use this.
*/
@@ -791,7 +774,10 @@ enum tcp_ca_event {
#define TCP_CA_MAX 128
#define TCP_CA_BUF_MAX (TCP_CA_NAME_MAX*TCP_CA_MAX)
+/* Algorithm can be set on socket without CAP_NET_ADMIN privileges */
#define TCP_CONG_NON_RESTRICTED 0x1
+/* Requires ECN/ECT set on all packets */
+#define TCP_CONG_NEEDS_ECN 0x2
struct tcp_congestion_ops {
struct list_head list;
@@ -840,6 +826,13 @@ u32 tcp_reno_ssthresh(struct sock *sk);
void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 acked);
extern struct tcp_congestion_ops tcp_reno;
+static inline bool tcp_ca_needs_ecn(const struct sock *sk)
+{
+ const struct inet_connection_sock *icsk = inet_csk(sk);
+
+ return icsk->icsk_ca_ops->flags & TCP_CONG_NEEDS_ECN;
+}
+
static inline void tcp_set_ca_state(struct sock *sk, const u8 ca_state)
{
struct inet_connection_sock *icsk = inet_csk(sk);
@@ -857,6 +850,40 @@ static inline void tcp_ca_event(struct sock *sk, const enum tcp_ca_event event)
icsk->icsk_ca_ops->cwnd_event(sk, event);
}
+/* RFC3168 : 6.1.1 SYN packets must not have ECT/ECN bits set
+ *
+ * If we receive a SYN packet with these bits set, it means a
+ * network is playing bad games with TOS bits. In order to
+ * avoid possible false congestion notifications, we disable
+ * TCP ECN negociation.
+ *
+ * Exception: tcp_ca wants ECN. This is required for DCTCP
+ * congestion control; it requires setting ECT on all packets,
+ * including SYN. We inverse the test in this case: If our
+ * local socket wants ECN, but peer only set ece/cwr (but not
+ * ECT in IP header) its probably a non-DCTCP aware sender.
+ */
+static inline void
+TCP_ECN_create_request(struct request_sock *req, const struct sk_buff *skb,
+ const struct sock *listen_sk)
+{
+ const struct tcphdr *th = tcp_hdr(skb);
+ const struct net *net = sock_net(listen_sk);
+ bool th_ecn = th->ece && th->cwr;
+ bool ect, need_ecn;
+
+ if (!th_ecn)
+ return;
+
+ ect = !INET_ECN_is_not_ect(TCP_SKB_CB(skb)->ip_dsfield);
+ need_ecn = tcp_ca_needs_ecn(listen_sk);
+
+ if (!ect && !need_ecn && net->ipv4.sysctl_tcp_ecn)
+ inet_rsk(req)->ecn_ok = 1;
+ else if (ect && need_ecn)
+ inet_rsk(req)->ecn_ok = 1;
+}
+
/* These functions determine how the current flow behaves in respect of SACK
* handling. SACK is negotiated with the peer, and therefore it can vary
* between different flows.
--
cgit v1.2.1
From 7354c8c389d18719dd71cc810da70b0921d66694 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Fri, 26 Sep 2014 22:37:34 +0200
Subject: net: tcp: split ack slow/fast events from cwnd_event
The congestion control ops "cwnd_event" currently supports
CA_EVENT_FAST_ACK and CA_EVENT_SLOW_ACK events (among others).
Both FAST and SLOW_ACK are only used by Westwood congestion
control algorithm.
This removes both flags from cwnd_event and adds a new
in_ack_event callback for this. The goal is to be able to
provide more detailed information about ACKs, such as whether
ECE flag was set, or whether the ACK resulted in a window
update.
It is required for DataCenter TCP (DCTCP) congestion control
algorithm as it makes a different choice depending on ECE being
set or not.
Joint work with Daniel Borkmann and Glenn Judd.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Glenn Judd <glenn.judd@morganstanley.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index a12f145cfbc3..7ec6a28305c0 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -763,8 +763,10 @@ enum tcp_ca_event {
CA_EVENT_CWND_RESTART, /* congestion window restart */
CA_EVENT_COMPLETE_CWR, /* end of congestion recovery */
CA_EVENT_LOSS, /* loss timeout */
- CA_EVENT_FAST_ACK, /* in sequence ack */
- CA_EVENT_SLOW_ACK, /* other ack */
+};
+
+enum tcp_ca_ack_event_flags {
+ CA_ACK_SLOWPATH = (1 << 0),
};
/*
@@ -796,6 +798,8 @@ struct tcp_congestion_ops {
void (*set_state)(struct sock *sk, u8 new_state);
/* call when cwnd event occurs (optional) */
void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev);
+ /* call when ack arrives (optional) */
+ void (*in_ack_event)(struct sock *sk, u32 flags);
/* new value of cwnd after loss (optional) */
u32 (*undo_cwnd)(struct sock *sk);
/* hook for packet ack accounting (optional) */
--
cgit v1.2.1
From 9890092e46b2996bb85f7f973e69424cb5c07bc0 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Fri, 26 Sep 2014 22:37:35 +0200
Subject: net: tcp: more detailed ACK events and events for CE marked packets
DataCenter TCP (DCTCP) determines cwnd growth based on ECN information
and ACK properties, e.g. ACK that updates window is treated differently
than DUPACK.
Also DCTCP needs information whether ACK was delayed ACK. Furthermore,
DCTCP also implements a CE state machine that keeps track of CE markings
of incoming packets.
Therefore, extend the congestion control framework to provide these
event types, so that DCTCP can be properly implemented as a normal
congestion algorithm module outside of the core stack.
Joint work with Daniel Borkmann and Glenn Judd.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Glenn Judd <glenn.judd@morganstanley.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 7ec6a28305c0..1f57c5363492 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -763,10 +763,17 @@ enum tcp_ca_event {
CA_EVENT_CWND_RESTART, /* congestion window restart */
CA_EVENT_COMPLETE_CWR, /* end of congestion recovery */
CA_EVENT_LOSS, /* loss timeout */
+ CA_EVENT_ECN_NO_CE, /* ECT set, but not CE marked */
+ CA_EVENT_ECN_IS_CE, /* received CE marked IP packet */
+ CA_EVENT_DELAYED_ACK, /* Delayed ack is sent */
+ CA_EVENT_NON_DELAYED_ACK,
};
+/* Information about inbound ACK, passed to cong_ops->in_ack_event() */
enum tcp_ca_ack_event_flags {
- CA_ACK_SLOWPATH = (1 << 0),
+ CA_ACK_SLOWPATH = (1 << 0), /* In slow path processing */
+ CA_ACK_WIN_UPDATE = (1 << 1), /* ACK updated window */
+ CA_ACK_ECE = (1 << 2), /* ECE bit is set on ack */
};
/*
--
cgit v1.2.1
From e3118e8359bb7c59555aca60c725106e6d78c5ce Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 26 Sep 2014 22:37:36 +0200
Subject: net: tcp: add DCTCP congestion control algorithm
This work adds the DataCenter TCP (DCTCP) congestion control
algorithm [1], which has been first published at SIGCOMM 2010 [2],
resp. follow-up analysis at SIGMETRICS 2011 [3] (and also, more
recently as an informational IETF draft available at [4]).
DCTCP is an enhancement to the TCP congestion control algorithm for
data center networks. Typical data center workloads are i.e.
i) partition/aggregate (queries; bursty, delay sensitive), ii) short
messages e.g. 50KB-1MB (for coordination and control state; delay
sensitive), and iii) large flows e.g. 1MB-100MB (data update;
throughput sensitive). DCTCP has therefore been designed for such
environments to provide/achieve the following three requirements:
* High burst tolerance (incast due to partition/aggregate)
* Low latency (short flows, queries)
* High throughput (continuous data updates, large file
transfers) with commodity, shallow buffered switches
The basic idea of its design consists of two fundamentals: i) on the
switch side, packets are being marked when its internal queue
length > threshold K (K is chosen so that a large enough headroom
for marked traffic is still available in the switch queue); ii) the
sender/host side maintains a moving average of the fraction of marked
packets, so each RTT, F is being updated as follows:
F := X / Y, where X is # of marked ACKs, Y is total # of ACKs
alpha := (1 - g) * alpha + g * F, where g is a smoothing constant
The resulting alpha (iow: probability that switch queue is congested)
is then being used in order to adaptively decrease the congestion
window W:
W := (1 - (alpha / 2)) * W
The means for receiving marked packets resp. marking them on switch
side in DCTCP is the use of ECN.
RFC3168 describes a mechanism for using Explicit Congestion Notification
from the switch for early detection of congestion, rather than waiting
for segment loss to occur.
However, this method only detects the presence of congestion, not
the *extent*. In the presence of mild congestion, it reduces the TCP
congestion window too aggressively and unnecessarily affects the
throughput of long flows [4].
DCTCP, as mentioned, enhances Explicit Congestion Notification (ECN)
processing to estimate the fraction of bytes that encounter congestion,
rather than simply detecting that some congestion has occurred. DCTCP
then scales the TCP congestion window based on this estimate [4],
thus it can derive multibit feedback from the information present in
the single-bit sequence of marks in its control law. And thus act in
*proportion* to the extent of congestion, not its *presence*.
Switches therefore set the Congestion Experienced (CE) codepoint in
packets when internal queue lengths exceed threshold K. Resulting,
DCTCP delivers the same or better throughput than normal TCP, while
using 90% less buffer space.
It was found in [2] that DCTCP enables the applications to handle 10x
the current background traffic, without impacting foreground traffic.
Moreover, a 10x increase in foreground traffic did not cause any
timeouts, and thus largely eliminates TCP incast collapse problems.
The algorithm itself has already seen deployments in large production
data centers since then.
We did a long-term stress-test and analysis in a data center, short
summary of our TCP incast tests with iperf compared to cubic:
This test measured DCTCP throughput and latency and compared it with
CUBIC throughput and latency for an incast scenario. In this test, 19
senders sent at maximum rate to a single receiver. The receiver simply
ran iperf -s.
The senders ran iperf -c <receiver> -t 30. All senders started
simultaneously (using local clocks synchronized by ntp).
This test was repeated multiple times. Below shows the results from a
single test. Other tests are similar. (DCTCP results were extremely
consistent, CUBIC results show some variance induced by the TCP timeouts
that CUBIC encountered.)
For this test, we report statistics on the number of TCP timeouts,
flow throughput, and traffic latency.
1) Timeouts (total over all flows, and per flow summaries):
CUBIC DCTCP
Total 3227 25
Mean 169.842 1.316
Median 183 1
Max 207 5
Min 123 0
Stddev 28.991 1.600
Timeout data is taken by measuring the net change in netstat -s
"other TCP timeouts" reported. As a result, the timeout measurements
above are not restricted to the test traffic, and we believe that it
is likely that all of the "DCTCP timeouts" are actually timeouts for
non-test traffic. We report them nevertheless. CUBIC will also include
some non-test timeouts, but they are drawfed by bona fide test traffic
timeouts for CUBIC. Clearly DCTCP does an excellent job of preventing
TCP timeouts. DCTCP reduces timeouts by at least two orders of
magnitude and may well have eliminated them in this scenario.
2) Throughput (per flow in Mbps):
CUBIC DCTCP
Mean 521.684 521.895
Median 464 523
Max 776 527
Min 403 519
Stddev 105.891 2.601
Fairness 0.962 0.999
Throughput data was simply the average throughput for each flow
reported by iperf. By avoiding TCP timeouts, DCTCP is able to
achieve much better per-flow results. In CUBIC, many flows
experience TCP timeouts which makes flow throughput unpredictable and
unfair. DCTCP, on the other hand, provides very clean predictable
throughput without incurring TCP timeouts. Thus, the standard deviation
of CUBIC throughput is dramatically higher than the standard deviation
of DCTCP throughput.
Mean throughput is nearly identical because even though cubic flows
suffer TCP timeouts, other flows will step in and fill the unused
bandwidth. Note that this test is something of a best case scenario
for incast under CUBIC: it allows other flows to fill in for flows
experiencing a timeout. Under situations where the receiver is issuing
requests and then waiting for all flows to complete, flows cannot fill
in for timed out flows and throughput will drop dramatically.
3) Latency (in ms):
CUBIC DCTCP
Mean 4.0088 0.04219
Median 4.055 0.0395
Max 4.2 0.085
Min 3.32 0.028
Stddev 0.1666 0.01064
Latency for each protocol was computed by running "ping -i 0.2
<receiver>" from a single sender to the receiver during the incast
test. For DCTCP, "ping -Q 0x6 -i 0.2 <receiver>" was used to ensure
that traffic traversed the DCTCP queue and was not dropped when the
queue size was greater than the marking threshold. The summary
statistics above are over all ping metrics measured between the single
sender, receiver pair.
The latency results for this test show a dramatic difference between
CUBIC and DCTCP. CUBIC intentionally overflows the switch buffer
which incurs the maximum queue latency (more buffer memory will lead
to high latency.) DCTCP, on the other hand, deliberately attempts to
keep queue occupancy low. The result is a two orders of magnitude
reduction of latency with DCTCP - even with a switch with relatively
little RAM. Switches with larger amounts of RAM will incur increasing
amounts of latency for CUBIC, but not for DCTCP.
4) Convergence and stability test:
This test measured the time that DCTCP took to fairly redistribute
bandwidth when a new flow commences. It also measured DCTCP's ability
to remain stable at a fair bandwidth distribution. DCTCP is compared
with CUBIC for this test.
At the commencement of this test, a single flow is sending at maximum
rate (near 10 Gbps) to a single receiver. One second after that first
flow commences, a new flow from a distinct server begins sending to
the same receiver as the first flow. After the second flow has sent
data for 10 seconds, the second flow is terminated. The first flow
sends for an additional second. Ideally, the bandwidth would be evenly
shared as soon as the second flow starts, and recover as soon as it
stops.
The results of this test are shown below. Note that the flow bandwidth
for the two flows was measured near the same time, but not
simultaneously.
DCTCP performs nearly perfectly within the measurement limitations
of this test: bandwidth is quickly distributed fairly between the two
flows, remains stable throughout the duration of the test, and
recovers quickly. CUBIC, in contrast, is slow to divide the bandwidth
fairly, and has trouble remaining stable.
CUBIC DCTCP
Seconds Flow 1 Flow 2 Seconds Flow 1 Flow 2
0 9.93 0 0 9.92 0
0.5 9.87 0 0.5 9.86 0
1 8.73 2.25 1 6.46 4.88
1.5 7.29 2.8 1.5 4.9 4.99
2 6.96 3.1 2 4.92 4.94
2.5 6.67 3.34 2.5 4.93 5
3 6.39 3.57 3 4.92 4.99
3.5 6.24 3.75 3.5 4.94 4.74
4 6 3.94 4 5.34 4.71
4.5 5.88 4.09 4.5 4.99 4.97
5 5.27 4.98 5 4.83 5.01
5.5 4.93 5.04 5.5 4.89 4.99
6 4.9 4.99 6 4.92 5.04
6.5 4.93 5.1 6.5 4.91 4.97
7 4.28 5.8 7 4.97 4.97
7.5 4.62 4.91 7.5 4.99 4.82
8 5.05 4.45 8 5.16 4.76
8.5 5.93 4.09 8.5 4.94 4.98
9 5.73 4.2 9 4.92 5.02
9.5 5.62 4.32 9.5 4.87 5.03
10 6.12 3.2 10 4.91 5.01
10.5 6.91 3.11 10.5 4.87 5.04
11 8.48 0 11 8.49 4.94
11.5 9.87 0 11.5 9.9 0
SYN/ACK ECT test:
This test demonstrates the importance of ECT on SYN and SYN-ACK packets
by measuring the connection probability in the presence of competing
flows for a DCTCP connection attempt *without* ECT in the SYN packet.
The test was repeated five times for each number of competing flows.
Competing Flows 1 | 2 | 4 | 8 | 16
------------------------------
Mean Connection Probability 1 | 0.67 | 0.45 | 0.28 | 0
Median Connection Probability 1 | 0.65 | 0.45 | 0.25 | 0
As the number of competing flows moves beyond 1, the connection
probability drops rapidly.
Enabling DCTCP with this patch requires the following steps:
DCTCP must be running both on the sender and receiver side in your
data center, i.e.:
sysctl -w net.ipv4.tcp_congestion_control=dctcp
Also, ECN functionality must be enabled on all switches in your
data center for DCTCP to work. The default ECN marking threshold (K)
heuristic on the switch for DCTCP is e.g., 20 packets (30KB) at
1Gbps, and 65 packets (~100KB) at 10Gbps (K > 1/7 * C * RTT, [4]).
In above tests, for each switch port, traffic was segregated into two
queues. For any packet with a DSCP of 0x01 - or equivalently a TOS of
0x04 - the packet was placed into the DCTCP queue. All other packets
were placed into the default drop-tail queue. For the DCTCP queue,
RED/ECN marking was enabled, here, with a marking threshold of 75 KB.
More details however, we refer you to the paper [2] under section 3).
There are no code changes required to applications running in user
space. DCTCP has been implemented in full *isolation* of the rest of
the TCP code as its own congestion control module, so that it can run
without a need to expose code to the core of the TCP stack, and thus
nothing changes for non-DCTCP users.
Changes in the CA framework code are minimal, and DCTCP algorithm
operates on mechanisms that are already available in most Silicon.
The gain (dctcp_shift_g) is currently a fixed constant (1/16) from
the paper, but we leave the option that it can be chosen carefully
to a different value by the user.
In case DCTCP is being used and ECN support on peer site is off,
DCTCP falls back after 3WHS to operate in normal TCP Reno mode.
ss {-4,-6} -t -i diag interface:
... dctcp wscale:7,7 rto:203 rtt:2.349/0.026 mss:1448 cwnd:2054
ssthresh:1102 ce_state 0 alpha 15 ab_ecn 0 ab_tot 735584
send 10129.2Mbps pacing_rate 20254.1Mbps unacked:1822 retrans:0/15
reordering:101 rcv_space:29200
... dctcp-reno wscale:7,7 rto:201 rtt:0.711/1.327 ato:40 mss:1448
cwnd:10 ssthresh:1102 fallback_mode send 162.9Mbps pacing_rate
325.5Mbps rcv_rtt:1.5 rcv_space:29200
More information about DCTCP can be found in [1-4].
[1] http://simula.stanford.edu/~alizade/Site/DCTCP.html
[2] http://simula.stanford.edu/~alizade/Site/DCTCP_files/dctcp-final.pdf
[3] http://simula.stanford.edu/~alizade/Site/DCTCP_files/dctcp_analysis-full.pdf
[4] http://tools.ietf.org/html/draft-bensley-tcpm-dctcp-00
Joint work with Florian Westphal and Glenn Judd.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Glenn Judd <glenn.judd@morganstanley.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/inet_diag.h | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/inet_diag.h b/include/uapi/linux/inet_diag.h
index bbde90fa5838..d65c0a09efd3 100644
--- a/include/uapi/linux/inet_diag.h
+++ b/include/uapi/linux/inet_diag.h
@@ -110,10 +110,10 @@ enum {
INET_DIAG_TCLASS,
INET_DIAG_SKMEMINFO,
INET_DIAG_SHUTDOWN,
+ INET_DIAG_DCTCPINFO,
};
-#define INET_DIAG_MAX INET_DIAG_SHUTDOWN
-
+#define INET_DIAG_MAX INET_DIAG_DCTCPINFO
/* INET_DIAG_MEM */
@@ -133,5 +133,14 @@ struct tcpvegas_info {
__u32 tcpv_minrtt;
};
+/* INET_DIAG_DCTCPINFO */
+
+struct tcp_dctcp_info {
+ __u16 dctcp_enabled;
+ __u16 dctcp_ce_state;
+ __u32 dctcp_alpha;
+ __u32 dctcp_ab_ecn;
+ __u32 dctcp_ab_tot;
+};
#endif /* _UAPI_INET_DIAG_H_ */
--
cgit v1.2.1
From c08ee14cc6634457948bc5e26584697208baa02a Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 12 Sep 2014 15:01:57 +0300
Subject: clk: ti: change clock init to use generic of_clk_init
Previously, the TI clock driver initialized all the clocks hierarchically
under each separate clock provider node. Now, each clock that requires
IO access will instead check their parent node to find out which IO range
to use.
This patch allows the TI clock driver to use a few new features provided
by the generic of_clk_init, and also allows registration of clock nodes
outside the clock hierarchy (for example, any external clocks.)
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Stefan Assmann <sassmann@kpanic.de>
Acked-by: Tony Lindgren <tony@atomide.com>
---
include/linux/clk/ti.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index e8d8a35034a5..f75acbf70e96 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -292,6 +292,7 @@ void omap2xxx_clkt_vps_init(void);
void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index);
void ti_dt_clocks_register(struct ti_dt_clk *oclks);
void ti_dt_clk_init_provider(struct device_node *np, int index);
+void ti_dt_clk_init_retry_clks(void);
void ti_dt_clockdomains_setup(void);
int ti_clk_retry_init(struct device_node *node, struct clk_hw *hw,
ti_of_clk_init_cb_t func);
--
cgit v1.2.1
From 9363dc4b599949bde338cdaba1cf7cac243e4e97 Mon Sep 17 00:00:00 2001
From: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date: Tue, 23 Sep 2014 13:30:41 +0200
Subject: netfilter: nf_tables: store and dump set policy
We want to know in which cases the user explicitly sets the policy
options. In that case, we also want to dump back the info.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_tables.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index c4d86198d3d6..3d7292392fac 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -241,6 +241,7 @@ void nft_unregister_set(struct nft_set_ops *ops);
* @dtype: data type (verdict or numeric type defined by userspace)
* @size: maximum set size
* @nelems: number of elements
+ * @policy: set parameterization (see enum nft_set_policies)
* @ops: set ops
* @flags: set flags
* @klen: key length
@@ -255,6 +256,7 @@ struct nft_set {
u32 dtype;
u32 size;
u32 nelems;
+ u16 policy;
/* runtime data below here */
const struct nft_set_ops *ops ____cacheline_aligned;
u16 flags;
--
cgit v1.2.1
From 3d46e73dfdb840f460e5b06416965d132570ec33 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <antoine.tenart@free-electrons.com>
Date: Wed, 24 Sep 2014 23:05:50 +0400
Subject: usb: rename phy to usb_phy in HCD
The USB PHY member of the HCD structure is renamed to 'usb_phy' and
modifications are done in all drivers accessing it.
This is in preparation to adding the generic PHY support.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
[Sergei: added missing 'drivers/usb/misc/lvstest.c' file, resolved rejects,
updated changelog.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/hcd.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index a48c89e96988..788059a108e5 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -106,7 +106,7 @@ struct usb_hcd {
* OTG and some Host controllers need software interaction with phys;
* other external phys should be software-transparent
*/
- struct usb_phy *phy;
+ struct usb_phy *usb_phy;
/* Flags that need to be manipulated atomically because they can
* change while the host controller is running. Always use
--
cgit v1.2.1
From 0043325495222139daa0696db736f67658dc7770 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Wed, 24 Sep 2014 23:09:44 +0400
Subject: usb: hcd: add generic PHY support
Add the generic PHY support, analogous to the USB PHY support. Intended it to be
used with the PCI EHCI/OHCI drivers and the xHCI platform driver.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/hcd.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 788059a108e5..cd96a2bc3388 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -107,6 +107,7 @@ struct usb_hcd {
* other external phys should be software-transparent
*/
struct usb_phy *usb_phy;
+ struct phy *phy;
/* Flags that need to be manipulated atomically because they can
* change while the host controller is running. Always use
--
cgit v1.2.1
From 1f180359f42fc6fda4600175c63f2a84f444cc92 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 29 Sep 2014 16:31:46 +0300
Subject: mei: remove include to pci header from mei module files
Remove inclusion of linux/pci.h in mei layer
however we need to include the headers that before
got included implicitly from linux/pci.h.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/mei_cl_bus.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h
index d14af7b722ef..164aad1f9f12 100644
--- a/include/linux/mei_cl_bus.h
+++ b/include/linux/mei_cl_bus.h
@@ -3,6 +3,7 @@
#include <linux/device.h>
#include <linux/uuid.h>
+#include <linux/mod_devicetable.h>
struct mei_cl_device;
--
cgit v1.2.1
From c02607aad2f9ed478eb288bcec1c00cd9df38b3c Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Mon, 29 Sep 2014 10:05:06 -0600
Subject: iommu: introduce domain attribute for nesting IOMMUs
Some IOMMUs, such as the ARM SMMU, support two stages of translation.
The idea behind such a scheme is to allow a guest operating system to
use the IOMMU for DMA mappings in the first stage of translation, with
the hypervisor then installing mappings in the second stage to provide
isolation of the DMA to the physical range assigned to that virtual
machine.
In order to allow IOMMU domains to be used for second-stage translation,
this patch adds a new iommu_attr (IOMMU_ATTR_NESTING) for setting
second-stage domains prior to device attach. The attribute can also be
queried to see if a domain is actually making use of nesting.
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
include/linux/iommu.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 20f9a527922a..7b02bcc85b9e 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -80,6 +80,7 @@ enum iommu_attr {
DOMAIN_ATTR_FSL_PAMU_STASH,
DOMAIN_ATTR_FSL_PAMU_ENABLE,
DOMAIN_ATTR_FSL_PAMUV1,
+ DOMAIN_ATTR_NESTING, /* two stages of translation */
DOMAIN_ATTR_MAX,
};
--
cgit v1.2.1
From f5c9ecebaf2a2c9381973798e389cc019dd983e0 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Mon, 29 Sep 2014 10:06:19 -0600
Subject: vfio/iommu_type1: add new VFIO_TYPE1_NESTING_IOMMU IOMMU type
VFIO allows devices to be safely handed off to userspace by putting
them behind an IOMMU configured to ensure DMA and interrupt isolation.
This enables userspace KVM clients, such as kvmtool and qemu, to further
map the device into a virtual machine.
With IOMMUs such as the ARM SMMU, it is then possible to provide SMMU
translation services to the guest operating system, which are nested
with the existing translation installed by VFIO. However, enabling this
feature means that the IOMMU driver must be informed that the VFIO domain
is being created for the purposes of nested translation.
This patch adds a new IOMMU type (VFIO_TYPE1_NESTING_IOMMU) to the VFIO
type-1 driver. The new IOMMU type acts identically to the
VFIO_TYPE1v2_IOMMU type, but additionally sets the DOMAIN_ATTR_NESTING
attribute on its IOMMU domains.
Cc: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
include/uapi/linux/vfio.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index 6612974c64bf..29715d27548f 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -33,6 +33,9 @@
/* Check if EEH is supported */
#define VFIO_EEH 5
+/* Two-stage IOMMU */
+#define VFIO_TYPE1_NESTING_IOMMU 6 /* Implies v2 */
+
/*
* The IOCTL interface is designed for extensibility by embedding the
* structure length (argsz) and flags into structures passed between
--
cgit v1.2.1
From b1937227316417aa7568d01e6fa1f272e98fb890 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 28 Sep 2014 22:18:47 -0700
Subject: net: reorganize sk_buff for faster __copy_skb_header()
With proliferation of bit fields in sk_buff, __copy_skb_header() became
quite expensive, showing as the most expensive function in a GSO
workload.
__copy_skb_header() performance is also critical for non GSO TCP
operations, as it is used from skb_clone()
This patch carefully moves all the fields that were not copied in a
separate zone : cloned, nohdr, fclone, peeked, head_frag, xmit_more
Then I moved all other fields and all other copied fields in a section
delimited by headers_start[0]/headers_end[0] section so that we
can use a single memcpy() call, inlined by compiler using long
word load/stores.
I also tried to make all copies in the natural orders of sk_buff,
to help hardware prefetching.
I made sure sk_buff size did not change.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 133 ++++++++++++++++++++++++++-----------------------
1 file changed, 72 insertions(+), 61 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 8eaa62400fca..b6cced304b26 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -527,27 +527,41 @@ struct sk_buff {
char cb[48] __aligned(8);
unsigned long _skb_refdst;
+ void (*destructor)(struct sk_buff *skb);
#ifdef CONFIG_XFRM
struct sec_path *sp;
+#endif
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+ struct nf_conntrack *nfct;
+#endif
+#ifdef CONFIG_BRIDGE_NETFILTER
+ struct nf_bridge_info *nf_bridge;
#endif
unsigned int len,
data_len;
__u16 mac_len,
hdr_len;
- union {
- __wsum csum;
- struct {
- __u16 csum_start;
- __u16 csum_offset;
- };
- };
- __u32 priority;
+
+ /* Following fields are _not_ copied in __copy_skb_header()
+ * Note that queue_mapping is here mostly to fill a hole.
+ */
kmemcheck_bitfield_begin(flags1);
- __u8 ignore_df:1,
- cloned:1,
- ip_summed:2,
+ __u16 queue_mapping;
+ __u8 cloned:1,
nohdr:1,
- nfctinfo:3;
+ fclone:2,
+ peeked:1,
+ head_frag:1,
+ xmit_more:1;
+ /* one bit hole */
+ kmemcheck_bitfield_end(flags1);
+
+
+
+ /* fields enclosed in headers_start/headers_end are copied
+ * using a single memcpy() in __copy_skb_header()
+ */
+ __u32 headers_start[0];
/* if you move pkt_type around you also must adapt those constants */
#ifdef __BIG_ENDIAN_BITFIELD
@@ -558,58 +572,53 @@ struct sk_buff {
#define PKT_TYPE_OFFSET() offsetof(struct sk_buff, __pkt_type_offset)
__u8 __pkt_type_offset[0];
- __u8 pkt_type:3,
- fclone:2,
- ipvs_property:1,
- peeked:1,
- nf_trace:1;
- kmemcheck_bitfield_end(flags1);
- __be16 protocol;
-
- void (*destructor)(struct sk_buff *skb);
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
- struct nf_conntrack *nfct;
-#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
- struct nf_bridge_info *nf_bridge;
-#endif
-
- int skb_iif;
-
- __u32 hash;
-
- __be16 vlan_proto;
- __u16 vlan_tci;
-
-#ifdef CONFIG_NET_SCHED
- __u16 tc_index; /* traffic control index */
-#ifdef CONFIG_NET_CLS_ACT
- __u16 tc_verd; /* traffic control verdict */
-#endif
-#endif
-
- __u16 queue_mapping;
- kmemcheck_bitfield_begin(flags2);
- __u8 xmit_more:1;
-#ifdef CONFIG_IPV6_NDISC_NODETYPE
- __u8 ndisc_nodetype:2;
-#endif
+ __u8 pkt_type:3;
__u8 pfmemalloc:1;
+ __u8 ignore_df:1;
+ __u8 nfctinfo:3;
+
+ __u8 nf_trace:1;
+ __u8 ip_summed:2;
__u8 ooo_okay:1;
__u8 l4_hash:1;
__u8 sw_hash:1;
__u8 wifi_acked_valid:1;
__u8 wifi_acked:1;
+
__u8 no_fcs:1;
- __u8 head_frag:1;
/* Indicates the inner headers are valid in the skbuff. */
__u8 encapsulation:1;
__u8 encap_hdr_csum:1;
__u8 csum_valid:1;
__u8 csum_complete_sw:1;
- /* 1/3 bit hole (depending on ndisc_nodetype presence) */
- kmemcheck_bitfield_end(flags2);
+ __u8 csum_level:2;
+ __u8 csum_bad:1;
+#ifdef CONFIG_IPV6_NDISC_NODETYPE
+ __u8 ndisc_nodetype:2;
+#endif
+ __u8 ipvs_property:1;
+ /* 5 or 7 bit hole */
+
+#ifdef CONFIG_NET_SCHED
+ __u16 tc_index; /* traffic control index */
+#ifdef CONFIG_NET_CLS_ACT
+ __u16 tc_verd; /* traffic control verdict */
+#endif
+#endif
+
+ union {
+ __wsum csum;
+ struct {
+ __u16 csum_start;
+ __u16 csum_offset;
+ };
+ };
+ __u32 priority;
+ int skb_iif;
+ __u32 hash;
+ __be16 vlan_proto;
+ __u16 vlan_tci;
#if defined CONFIG_NET_DMA || defined CONFIG_NET_RX_BUSY_POLL
union {
unsigned int napi_id;
@@ -625,19 +634,18 @@ struct sk_buff {
__u32 reserved_tailroom;
};
- kmemcheck_bitfield_begin(flags3);
- __u8 csum_level:2;
- __u8 csum_bad:1;
- /* 13 bit hole */
- kmemcheck_bitfield_end(flags3);
-
__be16 inner_protocol;
__u16 inner_transport_header;
__u16 inner_network_header;
__u16 inner_mac_header;
+
+ __be16 protocol;
__u16 transport_header;
__u16 network_header;
__u16 mac_header;
+
+ __u32 headers_end[0];
+
/* These elements must be at the end, see alloc_skb() for details. */
sk_buff_data_t tail;
sk_buff_data_t end;
@@ -3040,19 +3048,22 @@ static inline void nf_reset_trace(struct sk_buff *skb)
}
/* Note: This doesn't put any conntrack and bridge info in dst. */
-static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
+static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src,
+ bool copy)
{
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
dst->nfct = src->nfct;
nf_conntrack_get(src->nfct);
- dst->nfctinfo = src->nfctinfo;
+ if (copy)
+ dst->nfctinfo = src->nfctinfo;
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
dst->nf_bridge = src->nf_bridge;
nf_bridge_get(src->nf_bridge);
#endif
#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE) || defined(CONFIG_NF_TABLES)
- dst->nf_trace = src->nf_trace;
+ if (copy)
+ dst->nf_trace = src->nf_trace;
#endif
}
@@ -3064,7 +3075,7 @@ static inline void nf_copy(struct sk_buff *dst, const struct sk_buff *src)
#ifdef CONFIG_BRIDGE_NETFILTER
nf_bridge_put(dst->nf_bridge);
#endif
- __nf_copy(dst, src);
+ __nf_copy(dst, src, true);
}
#ifdef CONFIG_NETWORK_SECMARK
--
cgit v1.2.1
From 0bd2ac3dae74ee25c5ea171cb572731c7a89c248 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 29 Sep 2014 11:40:42 +0200
Subject: ASoC: Remove CODEC pointer from snd_soc_dapm_context
The only remaining user of the CODEC pointer in the DAPM struct is to
initialize the CODEC pointer in the widget struct. The later is scheduled
for removal, but has still a few users left. For now use
dapm->component->codec to initialize it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dapm.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index aac04ff84eea..d60c61b4b341 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -593,7 +593,6 @@ struct snd_soc_dapm_context {
struct device *dev; /* from parent - for debug */
struct snd_soc_component *component; /* parent component */
- struct snd_soc_codec *codec; /* parent codec */
struct snd_soc_card *card; /* parent card */
/* used during DAPM updates */
--
cgit v1.2.1
From 87a15a8090c0e5284c0e53528d9defa5d9237866 Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Fri, 26 Sep 2014 13:58:26 -0400
Subject: NFSD: Add generic v4.2 infrastructure
It's cleaner to introduce everything at once and have the server reply
with "not supported" than it would be to introduce extra operations when
implementing a specific one in the middle of the list.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/nfs4.h | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 79b2a0f5c318..cf38224c4fa0 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -110,6 +110,20 @@ enum nfs_opnum4 {
OP_DESTROY_CLIENTID = 57,
OP_RECLAIM_COMPLETE = 58,
+ /* nfs42 */
+ OP_ALLOCATE = 59,
+ OP_COPY = 60,
+ OP_COPY_NOTIFY = 61,
+ OP_DEALLOCATE = 62,
+ OP_IO_ADVISE = 63,
+ OP_LAYOUTERROR = 64,
+ OP_LAYOUTSTATS = 65,
+ OP_OFFLOAD_CANCEL = 66,
+ OP_OFFLOAD_STATUS = 67,
+ OP_READ_PLUS = 68,
+ OP_SEEK = 69,
+ OP_WRITE_SAME = 70,
+
OP_ILLEGAL = 10044,
};
@@ -117,10 +131,10 @@ enum nfs_opnum4 {
Needs to be updated if more operations are defined in future.*/
#define FIRST_NFS4_OP OP_ACCESS
-#define LAST_NFS4_OP OP_RECLAIM_COMPLETE
+#define LAST_NFS4_OP OP_WRITE_SAME
#define LAST_NFS40_OP OP_RELEASE_LOCKOWNER
#define LAST_NFS41_OP OP_RECLAIM_COMPLETE
-#define LAST_NFS42_OP OP_RECLAIM_COMPLETE
+#define LAST_NFS42_OP OP_WRITE_SAME
enum nfsstat4 {
NFS4_OK = 0,
--
cgit v1.2.1
From 24bab491220faa446d945624086d838af41d616c Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Fri, 26 Sep 2014 13:58:27 -0400
Subject: NFSD: Implement SEEK
This patch adds server support for the NFS v4.2 operation SEEK, which
returns the position of the next hole or data segment in a file.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/nfs4.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index cf38224c4fa0..026b0c042c40 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -550,4 +550,9 @@ struct nfs4_deviceid {
char data[NFS4_DEVICEID4_SIZE];
};
+enum data_content4 {
+ NFS4_CONTENT_DATA = 0,
+ NFS4_CONTENT_HOLE = 1,
+};
+
#endif
--
cgit v1.2.1
From 8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f Mon Sep 17 00:00:00 2001
From: Michael Grzeschik <m.grzeschik@pengutronix.de>
Date: Mon, 29 Sep 2014 11:55:36 +0200
Subject: ARCNET: add com20020 PCI IDs with metadata
This patch adds metadata for the com20020 to prepare for devices with
multiple io address areas with multi card interfaces.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/com20020.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/linux/com20020.h b/include/linux/com20020.h
index 5dcfb944b6ce..6a1ceca61e7f 100644
--- a/include/linux/com20020.h
+++ b/include/linux/com20020.h
@@ -41,6 +41,22 @@ extern const struct net_device_ops com20020_netdev_ops;
#define BUS_ALIGN 1
#endif
+#define PLX_PCI_MAX_CARDS 1
+
+struct com20020_pci_channel_map {
+ u32 bar;
+ u32 offset;
+ u32 size; /* 0x00 - auto, e.g. length of entire bar */
+};
+
+struct com20020_pci_card_info {
+ const char *name;
+ int devcount;
+
+ struct com20020_pci_channel_map chan_map_tbl[PLX_PCI_MAX_CARDS];
+
+ unsigned int flags;
+};
#define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */
#define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */
--
cgit v1.2.1
From c51da42a6346c0c747e70a4f5ae873da1150a784 Mon Sep 17 00:00:00 2001
From: Michael Grzeschik <m.grzeschik@pengutronix.de>
Date: Mon, 29 Sep 2014 11:55:37 +0200
Subject: ARCNET: add support for multi interfaces on com20020
The com20020-pci driver is currently designed to instance
one netdev with one pci device. This patch adds support to
instance many cards with one pci device, depending on the device
data in the private data.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/com20020.h | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/com20020.h b/include/linux/com20020.h
index 6a1ceca61e7f..85898995b234 100644
--- a/include/linux/com20020.h
+++ b/include/linux/com20020.h
@@ -41,7 +41,7 @@ extern const struct net_device_ops com20020_netdev_ops;
#define BUS_ALIGN 1
#endif
-#define PLX_PCI_MAX_CARDS 1
+#define PLX_PCI_MAX_CARDS 2
struct com20020_pci_channel_map {
u32 bar;
@@ -58,6 +58,19 @@ struct com20020_pci_card_info {
unsigned int flags;
};
+struct com20020_priv {
+ struct com20020_pci_card_info *ci;
+ struct list_head list_dev;
+};
+
+struct com20020_dev {
+ struct list_head list;
+ struct net_device *dev;
+
+ struct com20020_priv *pci_priv;
+ int index;
+};
+
#define _INTMASK (ioaddr+BUS_ALIGN*0) /* writable */
#define _STATUS (ioaddr+BUS_ALIGN*0) /* readable */
#define _COMMAND (ioaddr+BUS_ALIGN*1) /* standard arcnet commands */
--
cgit v1.2.1
From d82bd1229885d550d03926cfa937703f6caa3cc0 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 29 Sep 2014 13:08:29 +0200
Subject: tcp: move TCP_ECN_create_request out of header
After Octavian Purdilas tcp ipv4/ipv6 unification work this helper only
has a single callsite.
While at it, convert name to lowercase, suggested by Stephen.
Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 34 ----------------------------------
1 file changed, 34 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 1f57c5363492..545a79aa4212 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -861,40 +861,6 @@ static inline void tcp_ca_event(struct sock *sk, const enum tcp_ca_event event)
icsk->icsk_ca_ops->cwnd_event(sk, event);
}
-/* RFC3168 : 6.1.1 SYN packets must not have ECT/ECN bits set
- *
- * If we receive a SYN packet with these bits set, it means a
- * network is playing bad games with TOS bits. In order to
- * avoid possible false congestion notifications, we disable
- * TCP ECN negociation.
- *
- * Exception: tcp_ca wants ECN. This is required for DCTCP
- * congestion control; it requires setting ECT on all packets,
- * including SYN. We inverse the test in this case: If our
- * local socket wants ECN, but peer only set ece/cwr (but not
- * ECT in IP header) its probably a non-DCTCP aware sender.
- */
-static inline void
-TCP_ECN_create_request(struct request_sock *req, const struct sk_buff *skb,
- const struct sock *listen_sk)
-{
- const struct tcphdr *th = tcp_hdr(skb);
- const struct net *net = sock_net(listen_sk);
- bool th_ecn = th->ece && th->cwr;
- bool ect, need_ecn;
-
- if (!th_ecn)
- return;
-
- ect = !INET_ECN_is_not_ect(TCP_SKB_CB(skb)->ip_dsfield);
- need_ecn = tcp_ca_needs_ecn(listen_sk);
-
- if (!ect && !need_ecn && net->ipv4.sysctl_tcp_ecn)
- inet_rsk(req)->ecn_ok = 1;
- else if (ect && need_ecn)
- inet_rsk(req)->ecn_ok = 1;
-}
-
/* These functions determine how the current flow behaves in respect of SACK
* handling. SACK is negotiated with the peer, and therefore it can vary
* between different flows.
--
cgit v1.2.1
From 6f67c380056ceaf5844f18d3a5d769d233247849 Mon Sep 17 00:00:00 2001
From: Anatol Pomozov <anatol.pomozov@gmail.com>
Date: Fri, 26 Sep 2014 09:57:27 -0700
Subject: ASoC: rt5677: Add dts properties for input/output differential
configuration
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/rt5677.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/rt5677.h b/include/sound/rt5677.h
index a676717f74f4..082670e3a353 100644
--- a/include/sound/rt5677.h
+++ b/include/sound/rt5677.h
@@ -19,9 +19,12 @@ enum rt5677_dmic2_clk {
struct rt5677_platform_data {
- /* IN1 IN2 can optionally be differential */
+ /* IN1/IN2/LOUT1/LOUT2/LOUT3 can optionally be differential */
bool in1_diff;
bool in2_diff;
+ bool lout1_diff;
+ bool lout2_diff;
+ bool lout3_diff;
/* DMIC2 clock source selection */
enum rt5677_dmic2_clk dmic2_clk_pin;
};
--
cgit v1.2.1
From 79cf79abce71eb7dbc40e2f3121048ca5405cb47 Mon Sep 17 00:00:00 2001
From: Michael Braun <michael-dev@fami-braun.de>
Date: Thu, 25 Sep 2014 16:31:08 +0200
Subject: macvlan: add source mode
This patch adds a new mode of operation to macvlan, called "source".
It allows one to set a list of allowed mac address, which is used
to match against source mac address from received frames on underlying
interface.
This enables creating mac based VLAN associations, instead of standard
port or tag based. The feature is useful to deploy 802.1x mac based
behavior, where drivers of underlying interfaces doesn't allows that.
Configuration is done through the netlink interface using e.g.:
ip link add link eth0 name macvlan0 type macvlan mode source
ip link add link eth0 name macvlan1 type macvlan mode source
ip link set link dev macvlan0 type macvlan macaddr add 00:11:11:11:11:11
ip link set link dev macvlan0 type macvlan macaddr add 00:22:22:22:22:22
ip link set link dev macvlan0 type macvlan macaddr add 00:33:33:33:33:33
ip link set link dev macvlan1 type macvlan macaddr add 00:33:33:33:33:33
ip link set link dev macvlan1 type macvlan macaddr add 00:44:44:44:44:44
This allows clients with MAC addresses 00:11:11:11:11:11,
00:22:22:22:22:22 to be part of only VLAN associated with macvlan0
interface. Clients with MAC addresses 00:44:44:44:44:44 with only VLAN
associated with macvlan1 interface. And client with MAC address
00:33:33:33:33:33 to be associated with both VLANs.
Based on work of Stefan Gula <steweg@gmail.com>
v8: last version of Stefan Gula for Kernel 3.2.1
v9: rework onto linux-next 2014-03-12 by Michael Braun
add MACADDR_SET command, enable to configure mac for source mode
while creating interface
v10:
- reduce indention level
- rename source_list to source_entry
- use aligned 64bit ether address
- use hash_64 instead of addr[5]
v11:
- rebase for 3.14 / linux-next 20.04.2014
v12
- rebase for linux-next 2014-09-25
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_macvlan.h | 1 +
include/uapi/linux/if_link.h | 12 ++++++++++++
2 files changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index 6b2c7cf352a5..6f6929ea8a0c 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -60,6 +60,7 @@ struct macvlan_dev {
#ifdef CONFIG_NET_POLL_CONTROLLER
struct netpoll *netpoll;
#endif
+ unsigned int macaddr_count;
};
static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index c80f95f6ee78..0bdb77e16875 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -303,6 +303,10 @@ enum {
IFLA_MACVLAN_UNSPEC,
IFLA_MACVLAN_MODE,
IFLA_MACVLAN_FLAGS,
+ IFLA_MACVLAN_MACADDR_MODE,
+ IFLA_MACVLAN_MACADDR,
+ IFLA_MACVLAN_MACADDR_DATA,
+ IFLA_MACVLAN_MACADDR_COUNT,
__IFLA_MACVLAN_MAX,
};
@@ -313,6 +317,14 @@ enum macvlan_mode {
MACVLAN_MODE_VEPA = 2, /* talk to other ports through ext bridge */
MACVLAN_MODE_BRIDGE = 4, /* talk to bridge ports directly */
MACVLAN_MODE_PASSTHRU = 8,/* take over the underlying device */
+ MACVLAN_MODE_SOURCE = 16,/* use source MAC address list to assign */
+};
+
+enum macvlan_macaddr_mode {
+ MACVLAN_MACADDR_ADD,
+ MACVLAN_MACADDR_DEL,
+ MACVLAN_MACADDR_FLUSH,
+ MACVLAN_MACADDR_SET,
};
#define MACVLAN_FLAG_NOPROMISC 1
--
cgit v1.2.1
From 4bcfda09936da647b0a3b49d5dcb3c6c6ebb0395 Mon Sep 17 00:00:00 2001
From: "Tan, Raymond" <raymond.tan@intel.com>
Date: Wed, 3 Sep 2014 10:41:38 +0800
Subject: i2c: designware: add support of platform data to set I2C mode
Use the platform data to set the clk_freq when there is no DT configuration
available. The clk_freq in turn will determine the I2C speed mode.
In Quark, there is currently no other configuration mechanism other than
board files.
Signed-off-by: Raymond Tan <raymond.tan@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hock Leong Kweh <hock.leong.kweh@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
include/linux/platform_data/i2c-designware.h | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
create mode 100644 include/linux/platform_data/i2c-designware.h
(limited to 'include')
diff --git a/include/linux/platform_data/i2c-designware.h b/include/linux/platform_data/i2c-designware.h
new file mode 100644
index 000000000000..7a61fb27c25b
--- /dev/null
+++ b/include/linux/platform_data/i2c-designware.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef I2C_DESIGNWARE_H
+#define I2C_DESIGNWARE_H
+
+struct dw_i2c_platform_data {
+ unsigned int i2c_scl_freq;
+};
+
+#endif
--
cgit v1.2.1
From f48c767ce8951e30eb716b8ef69142d21aacbd1d Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 29 Sep 2014 13:58:47 +0200
Subject: PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h
The commit 46420dd73b80 (PM / Domains: Add APIs to attach/detach a PM
domain for a device) started using errno values in pm.h header file.
It also failed to include the header for these, thus it caused
compiler errors.
Instead of including the errno header to pm.h, let's move the functions
to pm_domain.h, since it's a better match.
Fixes: 46420dd73b80 (PM / Domains: Add APIs to attach/detach a PM domain for a device)
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm.h | 11 -----------
include/linux/pm_domain.h | 11 +++++++++++
2 files changed, 11 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm.h b/include/linux/pm.h
index c4cbf485a5d6..1022ba1eb4de 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -622,17 +622,6 @@ struct dev_pm_domain {
void (*detach)(struct device *dev, bool power_off);
};
-#ifdef CONFIG_PM
-extern int dev_pm_domain_attach(struct device *dev, bool power_on);
-extern void dev_pm_domain_detach(struct device *dev, bool power_off);
-#else
-static inline int dev_pm_domain_attach(struct device *dev, bool power_on)
-{
- return -ENODEV;
-}
-static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {}
-#endif
-
/*
* The PM_EVENT_ messages are also used by drivers implementing the legacy
* suspend framework, based on the ->suspend() and ->resume() callbacks common
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index ed4f4a79c528..900474317afc 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -301,4 +301,15 @@ static inline int of_genpd_add_provider_onecell(struct device_node *np,
return __of_genpd_add_provider(np, __of_genpd_xlate_onecell, data);
}
+#ifdef CONFIG_PM
+extern int dev_pm_domain_attach(struct device *dev, bool power_on);
+extern void dev_pm_domain_detach(struct device *dev, bool power_off);
+#else
+static inline int dev_pm_domain_attach(struct device *dev, bool power_on)
+{
+ return -ENODEV;
+}
+static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {}
+#endif
+
#endif /* _LINUX_PM_DOMAIN_H */
--
cgit v1.2.1
From baeb7ef34952f523a129e5d1369aa42ecbe7f8c9 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 29 Sep 2014 10:21:03 +0200
Subject: tty: serial: 8250: use 32bit variable for rpm_tx_active
The kbuild test robot wrote me:
| make.cross ARCH=powerpc
|>> ERROR: ".__xchg_called_with_bad_pointer" [drivers/tty/serial/8250/8250.ko] undefined!
The generic implementation of xchg() on arm and x86 works for variables of
size one bye (char). According to the report powerpc does not support
xchg() for one byte sized variables and looking further it seems also to
be the same case for sparc and tile (or for 10 out of 26 architectures
which provide a custom implementation).
For that reason I increase the size of the variable from one to four
bytes to get it work on powerpc (and the others).
Reported-By: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_8250.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index c267412a3ef4..3df10d5f154b 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -84,7 +84,7 @@ struct uart_8250_port {
unsigned char mcr_mask; /* mask of user bits */
unsigned char mcr_force; /* mask of forced bits */
unsigned char cur_iotype; /* Running I/O type */
- unsigned char rpm_tx_active;
+ unsigned int rpm_tx_active;
/*
* Some bits in registers are cleared on a read, so they must
--
cgit v1.2.1
From 22e0f8b9322cb1a48b1357e8f4ae6f5a9eca8cfa Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Sun, 28 Sep 2014 11:52:56 -0700
Subject: net: sched: make bstats per cpu and estimator RCU safe
In order to run qdisc's without locking statistics and estimators
need to be handled correctly.
To resolve bstats make the statistics per cpu. And because this is
only needed for qdiscs that are running without locks which is not
the case for most qdiscs in the near future only create percpu
stats when qdiscs set the TCQ_F_CPUSTATS flag.
Next because estimators use the bstats to calculate packets per
second and bytes per second the estimator code paths are updated
to use the per cpu statistics.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/gen_stats.h | 11 +++++++++++
include/net/sch_generic.h | 22 +++++++++++++++++++++-
2 files changed, 32 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index ea4271dceff0..ce3c1281f2a0 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -6,6 +6,11 @@
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
+struct gnet_stats_basic_cpu {
+ struct gnet_stats_basic_packed bstats;
+ struct u64_stats_sync syncp;
+};
+
struct gnet_dump {
spinlock_t * lock;
struct sk_buff * skb;
@@ -27,7 +32,11 @@ int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
spinlock_t *lock, struct gnet_dump *d);
int gnet_stats_copy_basic(struct gnet_dump *d,
+ struct gnet_stats_basic_cpu __percpu *cpu,
struct gnet_stats_basic_packed *b);
+void __gnet_stats_copy_basic(struct gnet_stats_basic_packed *bstats,
+ struct gnet_stats_basic_cpu __percpu *cpu,
+ struct gnet_stats_basic_packed *b);
int gnet_stats_copy_rate_est(struct gnet_dump *d,
const struct gnet_stats_basic_packed *b,
struct gnet_stats_rate_est64 *r);
@@ -37,11 +46,13 @@ int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
int gnet_stats_finish_copy(struct gnet_dump *d);
int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
+ struct gnet_stats_basic_cpu __percpu *cpu_bstats,
struct gnet_stats_rate_est64 *rate_est,
spinlock_t *stats_lock, struct nlattr *opt);
void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
struct gnet_stats_rate_est64 *rate_est);
int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
+ struct gnet_stats_basic_cpu __percpu *cpu_bstats,
struct gnet_stats_rate_est64 *rate_est,
spinlock_t *stats_lock, struct nlattr *opt);
bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats,
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index e65b8e0752af..4b9351120fd8 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -6,6 +6,7 @@
#include <linux/rcupdate.h>
#include <linux/pkt_sched.h>
#include <linux/pkt_cls.h>
+#include <linux/percpu.h>
#include <net/gen_stats.h>
#include <net/rtnetlink.h>
@@ -58,6 +59,7 @@ struct Qdisc {
* multiqueue device.
*/
#define TCQ_F_WARN_NONWC (1 << 16)
+#define TCQ_F_CPUSTATS 0x20 /* run using percpu statistics */
u32 limit;
const struct Qdisc_ops *ops;
struct qdisc_size_table __rcu *stab;
@@ -83,7 +85,10 @@ struct Qdisc {
*/
unsigned long state;
struct sk_buff_head q;
- struct gnet_stats_basic_packed bstats;
+ union {
+ struct gnet_stats_basic_packed bstats;
+ struct gnet_stats_basic_cpu __percpu *cpu_bstats;
+ } __packed;
unsigned int __state;
struct gnet_stats_queue qstats;
struct rcu_head rcu_head;
@@ -487,6 +492,10 @@ static inline int qdisc_enqueue_root(struct sk_buff *skb, struct Qdisc *sch)
return qdisc_enqueue(skb, sch) & NET_XMIT_MASK;
}
+static inline bool qdisc_is_percpu_stats(const struct Qdisc *q)
+{
+ return q->flags & TCQ_F_CPUSTATS;
+}
static inline void bstats_update(struct gnet_stats_basic_packed *bstats,
const struct sk_buff *skb)
@@ -495,6 +504,17 @@ static inline void bstats_update(struct gnet_stats_basic_packed *bstats,
bstats->packets += skb_is_gso(skb) ? skb_shinfo(skb)->gso_segs : 1;
}
+static inline void qdisc_bstats_update_cpu(struct Qdisc *sch,
+ const struct sk_buff *skb)
+{
+ struct gnet_stats_basic_cpu *bstats =
+ this_cpu_ptr(sch->cpu_bstats);
+
+ u64_stats_update_begin(&bstats->syncp);
+ bstats_update(&bstats->bstats, skb);
+ u64_stats_update_end(&bstats->syncp);
+}
+
static inline void qdisc_bstats_update(struct Qdisc *sch,
const struct sk_buff *skb)
{
--
cgit v1.2.1
From 25331d6ce42bcf4b34b6705fce4da15c3fabe62f Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Sun, 28 Sep 2014 11:53:29 -0700
Subject: net: sched: implement qstat helper routines
This adds helpers to manipulate qstats logic and replaces locations
that touch the counters directly. This simplifies future patches
to push qstats onto per cpu counters.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sch_generic.h | 39 +++++++++++++++++++++++++++++++++------
1 file changed, 33 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 4b9351120fd8..23a0f0fc83d8 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -521,11 +521,38 @@ static inline void qdisc_bstats_update(struct Qdisc *sch,
bstats_update(&sch->bstats, skb);
}
+static inline void qdisc_qstats_backlog_dec(struct Qdisc *sch,
+ const struct sk_buff *skb)
+{
+ sch->qstats.backlog -= qdisc_pkt_len(skb);
+}
+
+static inline void qdisc_qstats_backlog_inc(struct Qdisc *sch,
+ const struct sk_buff *skb)
+{
+ sch->qstats.backlog += qdisc_pkt_len(skb);
+}
+
+static inline void __qdisc_qstats_drop(struct Qdisc *sch, int count)
+{
+ sch->qstats.drops += count;
+}
+
+static inline void qdisc_qstats_drop(struct Qdisc *sch)
+{
+ sch->qstats.drops++;
+}
+
+static inline void qdisc_qstats_overlimit(struct Qdisc *sch)
+{
+ sch->qstats.overlimits++;
+}
+
static inline int __qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch,
struct sk_buff_head *list)
{
__skb_queue_tail(list, skb);
- sch->qstats.backlog += qdisc_pkt_len(skb);
+ qdisc_qstats_backlog_inc(sch, skb);
return NET_XMIT_SUCCESS;
}
@@ -541,7 +568,7 @@ static inline struct sk_buff *__qdisc_dequeue_head(struct Qdisc *sch,
struct sk_buff *skb = __skb_dequeue(list);
if (likely(skb != NULL)) {
- sch->qstats.backlog -= qdisc_pkt_len(skb);
+ qdisc_qstats_backlog_dec(sch, skb);
qdisc_bstats_update(sch, skb);
}
@@ -560,7 +587,7 @@ static inline unsigned int __qdisc_queue_drop_head(struct Qdisc *sch,
if (likely(skb != NULL)) {
unsigned int len = qdisc_pkt_len(skb);
- sch->qstats.backlog -= len;
+ qdisc_qstats_backlog_dec(sch, skb);
kfree_skb(skb);
return len;
}
@@ -579,7 +606,7 @@ static inline struct sk_buff *__qdisc_dequeue_tail(struct Qdisc *sch,
struct sk_buff *skb = __skb_dequeue_tail(list);
if (likely(skb != NULL))
- sch->qstats.backlog -= qdisc_pkt_len(skb);
+ qdisc_qstats_backlog_dec(sch, skb);
return skb;
}
@@ -661,14 +688,14 @@ static inline unsigned int qdisc_queue_drop(struct Qdisc *sch)
static inline int qdisc_drop(struct sk_buff *skb, struct Qdisc *sch)
{
kfree_skb(skb);
- sch->qstats.drops++;
+ qdisc_qstats_drop(sch);
return NET_XMIT_DROP;
}
static inline int qdisc_reshape_fail(struct sk_buff *skb, struct Qdisc *sch)
{
- sch->qstats.drops++;
+ qdisc_qstats_drop(sch);
#ifdef CONFIG_NET_CLS_ACT
if (sch->reshape_fail == NULL || sch->reshape_fail(skb, sch))
--
cgit v1.2.1
From 6401585366326fc0ecbc372ec60d1a15cd8be2f5 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Sun, 28 Sep 2014 11:53:57 -0700
Subject: net: sched: restrict use of qstats qlen
This removes the use of qstats->qlen variable from the classifiers
and makes it an explicit argument to gnet_stats_copy_queue().
The qlen represents the qdisc queue length and is packed into
the qstats at the last moment before passnig to user space. By
handling it explicitely we avoid, in the percpu stats case, having
to figure out which per_cpu variable to put it in.
It would probably be best to remove it from qstats completely
but qstats is a user space ABI and can't be broken. A future
patch could make an internal only qstats structure that would
avoid having to allocate an additional u32 variable on the
Qdisc struct. This would make the qstats struct 128bits instead
of 128+32.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/gen_stats.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index ce3c1281f2a0..de9b3dd5750e 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -40,7 +40,8 @@ void __gnet_stats_copy_basic(struct gnet_stats_basic_packed *bstats,
int gnet_stats_copy_rate_est(struct gnet_dump *d,
const struct gnet_stats_basic_packed *b,
struct gnet_stats_rate_est64 *r);
-int gnet_stats_copy_queue(struct gnet_dump *d, struct gnet_stats_queue *q);
+int gnet_stats_copy_queue(struct gnet_dump *d,
+ struct gnet_stats_queue *q, __u32 len);
int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
int gnet_stats_finish_copy(struct gnet_dump *d);
--
cgit v1.2.1
From b0ab6f92752b9f9d8da980506e9df3bd9dcd7ed3 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Sun, 28 Sep 2014 11:54:24 -0700
Subject: net: sched: enable per cpu qstats
After previous patches to simplify qstats the qstats can be
made per cpu with a packed union in Qdisc struct.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/gen_stats.h | 3 ++-
include/net/sch_generic.h | 12 +++++++++++-
2 files changed, 13 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index de9b3dd5750e..cbafa3768d48 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -41,7 +41,8 @@ int gnet_stats_copy_rate_est(struct gnet_dump *d,
const struct gnet_stats_basic_packed *b,
struct gnet_stats_rate_est64 *r);
int gnet_stats_copy_queue(struct gnet_dump *d,
- struct gnet_stats_queue *q, __u32 len);
+ struct gnet_stats_queue __percpu *cpu_q,
+ struct gnet_stats_queue *q, __u32 qlen);
int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
int gnet_stats_finish_copy(struct gnet_dump *d);
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 23a0f0fc83d8..f12669819d1a 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -90,7 +90,10 @@ struct Qdisc {
struct gnet_stats_basic_cpu __percpu *cpu_bstats;
} __packed;
unsigned int __state;
- struct gnet_stats_queue qstats;
+ union {
+ struct gnet_stats_queue qstats;
+ struct gnet_stats_queue __percpu *cpu_qstats;
+ } __packed;
struct rcu_head rcu_head;
int padded;
atomic_t refcnt;
@@ -543,6 +546,13 @@ static inline void qdisc_qstats_drop(struct Qdisc *sch)
sch->qstats.drops++;
}
+static inline void qdisc_qstats_drop_cpu(struct Qdisc *sch)
+{
+ struct gnet_stats_queue *qstats = this_cpu_ptr(sch->cpu_qstats);
+
+ qstats->drops++;
+}
+
static inline void qdisc_qstats_overlimit(struct Qdisc *sch)
{
sch->qstats.overlimits++;
--
cgit v1.2.1
From d8e0a86f9713689e35dc14f7184e85a13a2a9f4e Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Mon, 23 Jun 2014 14:20:06 -0700
Subject: i2c: cros_ec: Remove EC_I2C_FLAG_10BIT
In <https://lkml.org/lkml/2014/6/10/265> pointed out that the 10-bit
flag in the cros_ec_tunnel was useless. It went into a 16-bit flags
field but was defined at (1 << 16).
Since we have no 10-bit i2c devices on the other side of the tunnel on
any known devices this was never a problem. Until we do it makes
sense to remove this code. On the EC side the code to handle this
flag was removed in <https://chromium-review.googlesource.com/204162>.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
include/linux/mfd/cros_ec_commands.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
index 7853a6410d14..a49cd41feea7 100644
--- a/include/linux/mfd/cros_ec_commands.h
+++ b/include/linux/mfd/cros_ec_commands.h
@@ -1928,9 +1928,6 @@ struct ec_response_power_info {
#define EC_CMD_I2C_PASSTHRU 0x9e
-/* Slave address is 10 (not 7) bit */
-#define EC_I2C_FLAG_10BIT (1 << 16)
-
/* Read data; if not present, message is a write */
#define EC_I2C_FLAG_READ (1 << 15)
--
cgit v1.2.1
From ad9dc91b6e21266bfc6f466db4b95e10211f31ee Mon Sep 17 00:00:00 2001
From: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Date: Tue, 16 Sep 2014 19:18:12 -0400
Subject: drm/i915: Fix Sink CRC
In some cases like when PSR just got enabled the panel need more vblank
times to calculate CRC. I figured that out with the new PSR test cases
facing some cases that I had a green screen but a blank CRC. Even with
2 vblank waits on kernel + 2 vblank waits on test case.
So let's give up to 6 vblank wait time. However we now check for
TEST_CRC_COUNT that shows when panel finished to calculate CRC and
has it ready.
v2: Jani pointed out attempts decrements was wrong and should never reach
the error condition. And Daniel pointed out that EIO is more appropriated than
EGAIN. Also I realized that I have to read test_crc_count after setting
test_sink
v3: Rebase and adding error message
Cc: Todd Previte <tprevite@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_dp_helper.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 9305c718d789..8edeed00c082 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -303,7 +303,8 @@
#define DP_TEST_CRC_B_CB 0x244
#define DP_TEST_SINK_MISC 0x246
-#define DP_TEST_CRC_SUPPORTED (1 << 5)
+# define DP_TEST_CRC_SUPPORTED (1 << 5)
+# define DP_TEST_COUNT_MASK 0x7
#define DP_TEST_RESPONSE 0x260
# define DP_TEST_ACK (1 << 0)
@@ -313,7 +314,7 @@
#define DP_TEST_EDID_CHECKSUM 0x261
#define DP_TEST_SINK 0x270
-#define DP_TEST_SINK_START (1 << 0)
+# define DP_TEST_SINK_START (1 << 0)
#define DP_PAYLOAD_TABLE_UPDATE_STATUS 0x2c0 /* 1.2 MST */
# define DP_PAYLOAD_TABLE_UPDATED (1 << 0)
--
cgit v1.2.1
From b5e9c1a25fcf8a0d664606251a53b5caa6a19d08 Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Thu, 9 Jan 2014 11:03:14 +0100
Subject: drm: Pass dma-buf as argument to gem_prime_import_sg_table
Allows importing dma_reservation_objects from a dma-buf.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
---
include/drm/drmP.h | 4 +++-
include/drm/drm_gem_cma_helper.h | 3 ++-
2 files changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d2c2b7f3a4e2..53ed87698a74 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -87,6 +87,7 @@ struct drm_gem_object;
struct device_node;
struct videomode;
struct reservation_object;
+struct dma_buf_attachment;
/*
* 4 debug categories are defined:
@@ -570,7 +571,8 @@ struct drm_driver {
struct drm_gem_object *obj);
struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj);
struct drm_gem_object *(*gem_prime_import_sg_table)(
- struct drm_device *dev, size_t size,
+ struct drm_device *dev,
+ struct dma_buf_attachment *attach,
struct sg_table *sgt);
void *(*gem_prime_vmap)(struct drm_gem_object *obj);
void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr);
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index 42f11f3a8d39..2ff35f3de9c5 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -45,7 +45,8 @@ void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m);
struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj);
struct drm_gem_object *
-drm_gem_cma_prime_import_sg_table(struct drm_device *dev, size_t size,
+drm_gem_cma_prime_import_sg_table(struct drm_device *dev,
+ struct dma_buf_attachment *attach,
struct sg_table *sgt);
int drm_gem_cma_prime_mmap(struct drm_gem_object *obj,
struct vm_area_struct *vma);
--
cgit v1.2.1
From f4f4e3e3e9f3bde110067b9e4487cb267d90055a Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Thu, 9 Jan 2014 11:03:15 +0100
Subject: drm/ttm: add reservation_object as argument to ttm_bo_init
This allows importing reservation objects from dma-bufs.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
---
include/drm/ttm/ttm_bo_api.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 70b44917c368..0ccf7f267ff9 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -460,6 +460,7 @@ size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
* point to the shmem object backing a GEM object if TTM is used to back a
* GEM user interface.
* @acc_size: Accounted size for this object.
+ * @resv: Pointer to a reservation_object, or NULL to let ttm allocate one.
* @destroy: Destroy function. Use NULL for kfree().
*
* This function initializes a pre-allocated struct ttm_buffer_object.
@@ -487,6 +488,7 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev,
struct file *persistent_swap_storage,
size_t acc_size,
struct sg_table *sg,
+ struct reservation_object *resv,
void (*destroy) (struct ttm_buffer_object *));
/**
--
cgit v1.2.1
From 8e4a5da69c39788fabc9e7cf178eb62b6077c96b Mon Sep 17 00:00:00 2001
From: Sebastian Herbszt <herbszt@gmx.de>
Date: Sat, 20 Sep 2014 13:37:55 +0200
Subject: scsi: fix comment in struct Scsi_Host definition
Commit 1abf635 (scsi: use 64-bit value for 'max_luns') changed the order
of Scsi_Host members. Update the comment to reflect this.
Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_host.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index d0f69a3210df..5e362489ee88 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -606,7 +606,7 @@ struct Scsi_Host {
/*
* These three parameters can be used to allow for wide scsi,
* and for host adapters that support multiple busses
- * The first two should be set to 1 more than the actual max id
+ * The last two should be set to 1 more than the actual max id
* or lun (e.g. 8 for SCSI parallel systems).
*/
unsigned int max_channel;
--
cgit v1.2.1
From 112eeaa7f87bbd2925e919486bb504f8954fa675 Mon Sep 17 00:00:00 2001
From: Liviu Dudau <Liviu.Dudau@arm.com>
Date: Mon, 29 Sep 2014 15:29:20 +0100
Subject: asm-generic/io.h: Fix ioport_map() for !CONFIG_GENERIC_IOMAP
The !CONFIG_GENERIC_IOMAP version of ioport_map() is wrong. It returns a
mapped, i.e., virtual, address that can start from zero and completely
ignores the PCI_IOBASE and IO_SPACE_LIMIT that most architectures that use
!CONFIG_GENERIC_MAP define.
Tested-by: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
include/asm-generic/io.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 975e1cc75edb..b8fdc57a7335 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -331,7 +331,7 @@ static inline void iounmap(void __iomem *addr)
#ifndef CONFIG_GENERIC_IOMAP
static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
- return (void __iomem *) port;
+ return PCI_IOBASE + (port & IO_SPACE_LIMIT);
}
static inline void ioport_unmap(void __iomem *p)
--
cgit v1.2.1
From 41f8bba7f5552d033583777dede2df7c36e7853d Mon Sep 17 00:00:00 2001
From: Liviu Dudau <Liviu.Dudau@arm.com>
Date: Mon, 29 Sep 2014 15:29:21 +0100
Subject: of/pci: Add pci_register_io_range() and pci_pio_to_address()
Some architectures do not have a simple view of the PCI I/O space and
instead use a range of CPU addresses that map to bus addresses. For some
architectures these ranges will be expressed by OF bindings in a device
tree file.
This patch introduces a pci_register_io_range() helper function with a
generic implementation that can be used by such architectures to keep track
of the I/O ranges described by the PCI bindings. If the PCI_IOBASE macro
is not defined, that signals lack of support for PCI and we return an
error.
In order to retrieve the CPU address associated with an I/O port, a new
helper function pci_pio_to_address() is introduced. This will search in
the list of ranges registered with pci_register_io_range() and return the
CPU address that corresponds to the given port.
[arnd: add dummy !CONFIG_OF pci_pio_to_address() to fix build errors]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
CC: Grant Likely <grant.likely@linaro.org>
---
include/linux/of_address.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index fb7b7221e063..497a04356ff8 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -55,7 +55,9 @@ extern void __iomem *of_iomap(struct device_node *device, int index);
extern const __be32 *of_get_address(struct device_node *dev, int index,
u64 *size, unsigned int *flags);
+extern int pci_register_io_range(phys_addr_t addr, resource_size_t size);
extern unsigned long pci_address_to_pio(phys_addr_t addr);
+extern phys_addr_t pci_pio_to_address(unsigned long pio);
extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
struct device_node *node);
@@ -80,6 +82,11 @@ static inline const __be32 *of_get_address(struct device_node *dev, int index,
return NULL;
}
+static inline phys_addr_t pci_pio_to_address(unsigned long pio)
+{
+ return 0;
+}
+
static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
struct device_node *node)
{
--
cgit v1.2.1
From 2101e533f41a90b25bee17ce969734e26eb0eb55 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Fri, 26 Sep 2014 00:09:19 +0200
Subject: bcma: register bcma as device tree driver
This driver is used by the bcm53xx ARM SoC code. Now it is possible to
give the address of the chipcommon core in device tree and bcma will
search for all the other cores.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/bcma/bcma.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 634597917670..729f48e6b20b 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -323,6 +323,8 @@ struct bcma_bus {
struct pci_dev *host_pci;
/* Pointer to the SDIO device (only for BCMA_HOSTTYPE_SDIO) */
struct sdio_func *host_sdio;
+ /* Pointer to platform device (only for BCMA_HOSTTYPE_SOC) */
+ struct platform_device *host_pdev;
};
struct bcma_chipinfo chipinfo;
--
cgit v1.2.1
From e0fa975d85b2ec300b3d69f08bc4933f79316651 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 30 Sep 2014 02:25:42 +0200
Subject: ACPICA: Introduce acpi_enable_all_wakeup_gpes()
Add a routine for host OSes to enable all wakeup GPEs and disable
all of the non-wakeup ones at the same time.
It will be used for the handling of GPE wakeup from suspend-to-idle
in Linux.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpixf.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index dc9d037d3055..9fc1d71c82bc 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -692,6 +692,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
*event_status))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void))
+ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_wakeup_gpes(void))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
acpi_get_gpe_device(u32 gpe_index,
--
cgit v1.2.1
From 2a8a8ce651d3a88fdf83e2ed15633c8d19292108 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 30 Sep 2014 02:21:34 +0200
Subject: PM / sleep: Export dpm_suspend_late/noirq() and
dpm_resume_early/noirq()
Subsequent change sets will add platform-related operations between
dpm_suspend_late() and dpm_suspend_noirq() as well as between
dpm_resume_noirq() and dpm_resume_early() in suspend_enter(), so
export these functions for suspend_enter() to be able to call them
separately and split the invocations of dpm_suspend_end() and
dpm_resume_start() in there accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 72c0fe098a27..e1c00b7ee913 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -679,12 +679,16 @@ struct dev_pm_domain {
extern void device_pm_lock(void);
extern void dpm_resume_start(pm_message_t state);
extern void dpm_resume_end(pm_message_t state);
+extern void dpm_resume_noirq(pm_message_t state);
+extern void dpm_resume_early(pm_message_t state);
extern void dpm_resume(pm_message_t state);
extern void dpm_complete(pm_message_t state);
extern void device_pm_unlock(void);
extern int dpm_suspend_end(pm_message_t state);
extern int dpm_suspend_start(pm_message_t state);
+extern int dpm_suspend_noirq(pm_message_t state);
+extern int dpm_suspend_late(pm_message_t state);
extern int dpm_suspend(pm_message_t state);
extern int dpm_prepare(pm_message_t state);
--
cgit v1.2.1
From a8d46b9e4e487301affe84fa53de40b890898604 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 30 Sep 2014 02:29:01 +0200
Subject: ACPI / sleep: Rework the handling of ACPI GPE wakeup from
suspend-to-idle
The ACPI GPE wakeup from suspend-to-idle is currently based on using
the IRQF_NO_SUSPEND flag for the ACPI SCI, but that is problematic
for a couple of reasons. First, in principle the ACPI SCI may be
shared and IRQF_NO_SUSPEND does not really work well with shared
interrupts. Second, it may require the ACPI subsystem to special-case
the handling of device notifications depending on whether or not
they are received during suspend-to-idle in some places which would
lead to fragile code. Finally, it's better the handle ACPI wakeup
interrupts consistently with wakeup interrupts from other sources.
For this reason, remove the IRQF_NO_SUSPEND flag from the ACPI SCI
and use enable_irq_wake()/disable_irq_wake() with it instead, which
requires two additional platform hooks to be added to struct
platform_freeze_ops.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/suspend.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 06a9910827c2..3388c1b6f7d8 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -189,6 +189,8 @@ struct platform_suspend_ops {
struct platform_freeze_ops {
int (*begin)(void);
+ int (*prepare)(void);
+ void (*restore)(void);
void (*end)(void);
};
--
cgit v1.2.1
From 83bbde1cc0ec9d156b9271e29ffe0dc89c687feb Mon Sep 17 00:00:00 2001
From: Liviu Dudau <Liviu.Dudau@arm.com>
Date: Mon, 29 Sep 2014 15:29:24 +0100
Subject: of/pci: Move of_pci_range_to_resource() to of/address.c
We need to enhance of_pci_range_to_resources() enough that it won't make
sense for it to be inline anymore. Move it to drivers/of/address.c, under
#ifdef CONFIG_PCI.
of_address.h previously implemented of_pci_range_to_resources()
unconditionally, regardless of any config options. The implementation in
address.c is defined only when CONFIG_OF_ADDRESS=y and CONFIG_PCI=y,
so add a dummy version to avoid build errors when CONFIG_OF or
CONFIG_OF_ADDRESS is not defined.
[bhelgaas: drop extra detail from changelog, move def under CONFIG_PCI,
add dummy of_pci_range_to_resource() for build errors (from Arnd)]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Grant Likely <grant.likely@linaro.org>
CC: Rob Herring <robh+dt@kernel.org>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Catalin Marinas <catalin.marinas@arm.com>
---
include/linux/of_address.h | 20 +++++++++-----------
1 file changed, 9 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 497a04356ff8..a38e1c846c23 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -23,17 +23,6 @@ struct of_pci_range {
#define for_each_of_pci_range(parser, range) \
for (; of_pci_range_parser_one(parser, range);)
-static inline void of_pci_range_to_resource(struct of_pci_range *range,
- struct device_node *np,
- struct resource *res)
-{
- res->flags = range->flags;
- res->start = range->cpu_addr;
- res->end = range->cpu_addr + range->size - 1;
- res->parent = res->child = res->sibling = NULL;
- res->name = np->full_name;
-}
-
/* Translate a DMA address from device space to CPU space */
extern u64 of_translate_dma_address(struct device_node *dev,
const __be32 *in_addr);
@@ -145,6 +134,9 @@ extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
u64 *size, unsigned int *flags);
extern int of_pci_address_to_resource(struct device_node *dev, int bar,
struct resource *r);
+extern void of_pci_range_to_resource(struct of_pci_range *range,
+ struct device_node *np,
+ struct resource *res);
#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
struct resource *r)
@@ -157,6 +149,12 @@ static inline const __be32 *of_get_pci_address(struct device_node *dev,
{
return NULL;
}
+static inline void of_pci_range_to_resource(struct of_pci_range *range,
+ struct device_node *np,
+ struct resource *res)
+{
+ return -ENOSYS;
+}
#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
#endif /* __OF_ADDRESS_H */
--
cgit v1.2.1
From bda003036684b9779fca2b3d457621eaff9bcd0a Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Wed, 30 Jul 2014 22:50:59 +0200
Subject: clk: add pxa clocks infrastructure
Add a the common code used by all PXA variants.
This is the first step in the transition from architecture defined
clocks (in arch/arm/mach-pxa) towards clock framework. The goal is to
have the same features (and not all the features) of the existing
clocks, and enable the transition of PXA to device-tree.
All PXA rely on a "CKEN" type clock, which :
- has a gate (bit in CKEN register)
- is generated from a PLL, generally divided
- has an alternate low power clock
Each variant will specialize the CKEN clock :
- pxa25x have no low power clock
- pxa27x in low power use always the 13 MHz ring oscillator
- pxa3xx in low power have specific dividers for each clock
The device-tree provides a list of CLK_* (ex: CLK_USB or CLK_I2C) to get
a handle on the clock. While pxa-clock.h will describe all the clocks of
all the variants, each variant will only use a subset of it.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/pxa-clock.h | 77 +++++++++++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
create mode 100644 include/dt-bindings/clock/pxa-clock.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/pxa-clock.h b/include/dt-bindings/clock/pxa-clock.h
new file mode 100644
index 000000000000..e65803b1dc7e
--- /dev/null
+++ b/include/dt-bindings/clock/pxa-clock.h
@@ -0,0 +1,77 @@
+/*
+ * Inspired by original work from pxa2xx-regs.h by Nicolas Pitre
+ * Copyright (C) 2014 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_PXA2XX_H__
+#define __DT_BINDINGS_CLOCK_PXA2XX_H__
+
+#define CLK_NONE 0
+#define CLK_1WIRE 1
+#define CLK_AC97 2
+#define CLK_AC97CONF 3
+#define CLK_ASSP 4
+#define CLK_BOOT 5
+#define CLK_BTUART 6
+#define CLK_CAMERA 7
+#define CLK_CIR 8
+#define CLK_CORE 9
+#define CLK_DMC 10
+#define CLK_FFUART 11
+#define CLK_FICP 12
+#define CLK_GPIO 13
+#define CLK_HSIO2 14
+#define CLK_HWUART 15
+#define CLK_I2C 16
+#define CLK_I2S 17
+#define CLK_IM 18
+#define CLK_INC 19
+#define CLK_ISC 20
+#define CLK_KEYPAD 21
+#define CLK_LCD 22
+#define CLK_MEMC 23
+#define CLK_MEMSTK 24
+#define CLK_MINI_IM 25
+#define CLK_MINI_LCD 26
+#define CLK_MMC 27
+#define CLK_MMC1 28
+#define CLK_MMC2 29
+#define CLK_MMC3 30
+#define CLK_MSL 31
+#define CLK_MSL0 32
+#define CLK_MVED 33
+#define CLK_NAND 34
+#define CLK_NSSP 35
+#define CLK_OSTIMER 36
+#define CLK_PWM0 37
+#define CLK_PWM1 38
+#define CLK_PWM2 39
+#define CLK_PWM3 40
+#define CLK_PWRI2C 41
+#define CLK_PXA300_GCU 42
+#define CLK_PXA320_GCU 43
+#define CLK_SMC 44
+#define CLK_SSP 45
+#define CLK_SSP1 46
+#define CLK_SSP2 47
+#define CLK_SSP3 48
+#define CLK_SSP4 49
+#define CLK_STUART 50
+#define CLK_TOUCH 51
+#define CLK_TPM 52
+#define CLK_UDC 53
+#define CLK_USB 54
+#define CLK_USB2 55
+#define CLK_USBH 56
+#define CLK_USBHOST 57
+#define CLK_USIM 58
+#define CLK_USIM1 59
+#define CLK_USMI0 60
+#define CLK_MAX 61
+
+#endif
--
cgit v1.2.1
From 1c6dcbe5ceff81c2cf8d929646af675cd59fe7c0 Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Fri, 26 Sep 2014 13:58:48 -0400
Subject: NFS: Implement SEEK
The SEEK operation is used when an application makes an lseek call with
either the SEEK_HOLE or SEEK_DATA flags set. I fall back on
nfs_file_llseek() if the server does not have SEEK support.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs4.h | 3 +++
include/linux/nfs_fs_sb.h | 1 +
include/linux/nfs_xdr.h | 19 +++++++++++++++++++
3 files changed, 23 insertions(+)
(limited to 'include')
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 026b0c042c40..356acc2846fd 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -487,6 +487,9 @@ enum {
NFSPROC4_CLNT_GETDEVICELIST,
NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
NFSPROC4_CLNT_DESTROY_CLIENTID,
+
+ /* nfs42 */
+ NFSPROC4_CLNT_SEEK,
};
/* nfs41 types */
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 922be2e050f5..a32ba0d7a98f 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -230,5 +230,6 @@ struct nfs_server {
#define NFS_CAP_STATEID_NFSV41 (1U << 16)
#define NFS_CAP_ATOMIC_OPEN_V1 (1U << 17)
#define NFS_CAP_SECURITY_LABEL (1U << 18)
+#define NFS_CAP_SEEK (1U << 19)
#endif
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 0040629894df..0051b1ad2b37 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1239,6 +1239,25 @@ struct pnfs_ds_commit_info {
#endif /* CONFIG_NFS_V4_1 */
+#ifdef CONFIG_NFS_V4_2
+struct nfs42_seek_args {
+ struct nfs4_sequence_args seq_args;
+
+ struct nfs_fh *sa_fh;
+ nfs4_stateid sa_stateid;
+ u64 sa_offset;
+ u32 sa_what;
+};
+
+struct nfs42_seek_res {
+ struct nfs4_sequence_res seq_res;
+ unsigned int status;
+
+ u32 sr_eof;
+ u64 sr_offset;
+};
+#endif
+
struct nfs_page;
#define NFS_PAGEVEC_SIZE (8U)
--
cgit v1.2.1
From e1c00e10e92c04aa637126db2e59b092bd4878f8 Mon Sep 17 00:00:00 2001
From: Majd Dibbiny <majd@mellanox.com>
Date: Tue, 30 Sep 2014 12:03:48 +0300
Subject: net/mlx4_core: New init and exit flow for mlx4_core
In the new flow, we separate the pci initialization and teardown
from the initialization and teardown of the other resources.
__mlx4_init_one handles the pci resources initialization. It then
calls mlx4_load_one to initialize the remainder of the resources.
When removing a device, mlx4_remove_one is invoked. However, now
mlx4_remove_one calls mlx4_unload_one to free all the resources except the pci
resources. When mlx4_unload_one returns, mlx4_remove_one then frees the
pci resources.
The above separation will allow us to implement 'reset flow' in the future.
It will also enable more EQs for VFs and is a pre-step to the modern API to
enable/disable SRIOV.
Also added nvfs; an integer array of size MLX4_MAX_PORTS + 1; to the mlx4_dev
struct. This new field is used to avoid parsing the num_vfs module parameter
each time the mlx4_restart_one is called.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 03b5608a4329..b2f8ab9a57c4 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -707,6 +707,7 @@ struct mlx4_dev {
u64 regid_promisc_array[MLX4_MAX_PORTS + 1];
u64 regid_allmulti_array[MLX4_MAX_PORTS + 1];
struct mlx4_vf_dev *dev_vfs;
+ int nvfs[MLX4_MAX_PORTS + 1];
};
struct mlx4_eqe {
--
cgit v1.2.1
From a12a601ed163578084a48708ae376805f79a1ccf Mon Sep 17 00:00:00 2001
From: Li RongQing <roy.qing.li@gmail.com>
Date: Tue, 30 Sep 2014 09:49:55 +0800
Subject: tcp: Change tcp_slow_start function to return void
No caller uses the return value, so make this function return void.
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 545a79aa4212..ba2f9d03076b 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -830,7 +830,7 @@ void tcp_get_available_congestion_control(char *buf, size_t len);
void tcp_get_allowed_congestion_control(char *buf, size_t len);
int tcp_set_allowed_congestion_control(char *allowed);
int tcp_set_congestion_control(struct sock *sk, const char *name);
-int tcp_slow_start(struct tcp_sock *tp, u32 acked);
+void tcp_slow_start(struct tcp_sock *tp, u32 acked);
void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w);
u32 tcp_reno_ssthresh(struct sock *sk);
--
cgit v1.2.1
From c611529e7cd3465ec0eada0f44200e8420c38908 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Fri, 26 Sep 2014 19:20:08 -0400
Subject: sd: Honor block layer integrity handling flags
A set of flags introduced in the block layer enable better control over
how protection information is handled. These flags are useful for both
error injection and data recovery purposes. Checking can be enabled and
disabled for controller and disk, and the guard tag format is now a
per-I/O property.
Update sd_protect_op to communicate the relevant information to the
low-level device driver via a set of flags in scsi_cmnd.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 33 ++++++++++++++++++++++++---------
include/scsi/scsi_cmnd.h | 36 ++++++++++++++++++++++++++----------
2 files changed, 50 insertions(+), 19 deletions(-)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 14bff3fe56d4..ce6b75964b71 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -292,6 +292,14 @@ static inline unsigned bio_segments(struct bio *bio)
*/
#define bio_get(bio) atomic_inc(&(bio)->bi_cnt)
+enum bip_flags {
+ BIP_BLOCK_INTEGRITY = 1 << 0, /* block layer owns integrity data */
+ BIP_MAPPED_INTEGRITY = 1 << 1, /* ref tag has been remapped */
+ BIP_CTRL_NOCHECK = 1 << 2, /* disable HBA integrity checking */
+ BIP_DISK_NOCHECK = 1 << 3, /* disable disk integrity checking */
+ BIP_IP_CHECKSUM = 1 << 4, /* IP checksum */
+};
+
#if defined(CONFIG_BLK_DEV_INTEGRITY)
static inline struct bio_integrity_payload *bio_integrity(struct bio *bio)
@@ -323,13 +331,15 @@ struct bio_integrity_payload {
struct bio_vec bip_inline_vecs[0];/* embedded bvec array */
};
-enum bip_flags {
- BIP_BLOCK_INTEGRITY = 1 << 0, /* block layer owns integrity data */
- BIP_MAPPED_INTEGRITY = 1 << 1, /* ref tag has been remapped */
- BIP_CTRL_NOCHECK = 1 << 2, /* disable HBA integrity checking */
- BIP_DISK_NOCHECK = 1 << 3, /* disable disk integrity checking */
- BIP_IP_CHECKSUM = 1 << 4, /* IP checksum */
-};
+static inline bool bio_integrity_flagged(struct bio *bio, enum bip_flags flag)
+{
+ struct bio_integrity_payload *bip = bio_integrity(bio);
+
+ if (bip)
+ return bip->bip_flags & flag;
+
+ return false;
+}
static inline sector_t bip_get_seed(struct bio_integrity_payload *bip)
{
@@ -701,9 +711,9 @@ extern void bio_integrity_init(void);
#else /* CONFIG_BLK_DEV_INTEGRITY */
-static inline int bio_integrity(struct bio *bio)
+static inline void *bio_integrity(struct bio *bio)
{
- return 0;
+ return NULL;
}
static inline bool bio_integrity_enabled(struct bio *bio)
@@ -754,6 +764,11 @@ static inline void bio_integrity_init(void)
return;
}
+static inline bool bio_integrity_flagged(struct bio *bio, enum bip_flags flag)
+{
+ return false;
+}
+
#endif /* CONFIG_BLK_DEV_INTEGRITY */
#endif /* CONFIG_BLOCK */
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 73f349044941..522a5f27f553 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -10,9 +10,10 @@
#include <scsi/scsi_device.h>
struct Scsi_Host;
-struct scsi_device;
struct scsi_driver;
+#include <scsi/scsi_device.h>
+
/*
* MAX_COMMAND_SIZE is:
* The longest fixed-length SCSI CDB as per the SCSI standard.
@@ -81,6 +82,7 @@ struct scsi_cmnd {
unsigned char prot_op;
unsigned char prot_type;
+ unsigned char prot_flags;
unsigned short cmd_len;
enum dma_data_direction sc_data_direction;
@@ -252,6 +254,14 @@ static inline unsigned char scsi_get_prot_op(struct scsi_cmnd *scmd)
return scmd->prot_op;
}
+enum scsi_prot_flags {
+ SCSI_PROT_TRANSFER_PI = 1 << 0,
+ SCSI_PROT_GUARD_CHECK = 1 << 1,
+ SCSI_PROT_REF_CHECK = 1 << 2,
+ SCSI_PROT_REF_INCREMENT = 1 << 3,
+ SCSI_PROT_IP_CHECKSUM = 1 << 4,
+};
+
/*
* The controller usually does not know anything about the target it
* is communicating with. However, when DIX is enabled the controller
@@ -280,6 +290,17 @@ static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
return blk_rq_pos(scmd->request);
}
+static inline unsigned int scsi_prot_interval(struct scsi_cmnd *scmd)
+{
+ return scmd->device->sector_size;
+}
+
+static inline u32 scsi_prot_ref_tag(struct scsi_cmnd *scmd)
+{
+ return blk_rq_pos(scmd->request) >>
+ (ilog2(scsi_prot_interval(scmd)) - 9) & 0xffffffff;
+}
+
static inline unsigned scsi_prot_sg_count(struct scsi_cmnd *cmd)
{
return cmd->prot_sdb ? cmd->prot_sdb->table.nents : 0;
@@ -316,17 +337,12 @@ static inline void set_driver_byte(struct scsi_cmnd *cmd, char status)
static inline unsigned scsi_transfer_length(struct scsi_cmnd *scmd)
{
unsigned int xfer_len = scsi_out(scmd)->length;
- unsigned int prot_op = scsi_get_prot_op(scmd);
- unsigned int sector_size = scmd->device->sector_size;
+ unsigned int prot_interval = scsi_prot_interval(scmd);
- switch (prot_op) {
- case SCSI_PROT_NORMAL:
- case SCSI_PROT_WRITE_STRIP:
- case SCSI_PROT_READ_INSERT:
- return xfer_len;
- }
+ if (scmd->prot_flags & SCSI_PROT_TRANSFER_PI)
+ xfer_len += (xfer_len >> ilog2(prot_interval)) * 8;
- return xfer_len + (xfer_len >> ilog2(sector_size)) * 8;
+ return xfer_len;
}
#endif /* _SCSI_SCSI_CMND_H */
--
cgit v1.2.1
From 75ab4cb8301adb3a02a96c5c03c837ed941f1bc5 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Sat, 20 Sep 2014 21:57:51 -0700
Subject: f2fs: introduce cp_control structure
This patch add a new data structure to control checkpoint parameters.
Currently, it presents the reason of checkpoint such as is_umount and normal
sync.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
include/trace/events/f2fs.h | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index d06d44363fea..66eaace9c07e 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -69,6 +69,11 @@
{ GC_GREEDY, "Greedy" }, \
{ GC_CB, "Cost-Benefit" })
+#define show_cpreason(type) \
+ __print_symbolic(type, \
+ { CP_UMOUNT, "Umount" }, \
+ { CP_SYNC, "Sync" })
+
struct victim_sel_policy;
DECLARE_EVENT_CLASS(f2fs__inode,
@@ -944,25 +949,25 @@ TRACE_EVENT(f2fs_submit_page_mbio,
TRACE_EVENT(f2fs_write_checkpoint,
- TP_PROTO(struct super_block *sb, bool is_umount, char *msg),
+ TP_PROTO(struct super_block *sb, int reason, char *msg),
- TP_ARGS(sb, is_umount, msg),
+ TP_ARGS(sb, reason, msg),
TP_STRUCT__entry(
__field(dev_t, dev)
- __field(bool, is_umount)
+ __field(int, reason)
__field(char *, msg)
),
TP_fast_assign(
__entry->dev = sb->s_dev;
- __entry->is_umount = is_umount;
+ __entry->reason = reason;
__entry->msg = msg;
),
TP_printk("dev = (%d,%d), checkpoint for %s, state = %s",
show_dev(__entry),
- __entry->is_umount ? "clean umount" : "consistency",
+ show_cpreason(__entry->reason),
__entry->msg)
);
--
cgit v1.2.1
From 4b2fecc84655055a6a1fe9151786992ac04b56ce Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Sat, 20 Sep 2014 22:06:39 -0700
Subject: f2fs: introduce FITRIM in f2fs_ioctl
This patch introduces FITRIM in f2fs_ioctl.
In this case, f2fs will issue small discards and prefree discards as many as
possible for the given area.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
include/trace/events/f2fs.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 66eaace9c07e..bbc4de9baef7 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -72,7 +72,8 @@
#define show_cpreason(type) \
__print_symbolic(type, \
{ CP_UMOUNT, "Umount" }, \
- { CP_SYNC, "Sync" })
+ { CP_SYNC, "Sync" }, \
+ { CP_DISCARD, "Discard" })
struct victim_sel_policy;
--
cgit v1.2.1
From 0b0b0893d49b34201a6c4416b1a707b580b91e3d Mon Sep 17 00:00:00 2001
From: Liviu Dudau <Liviu.Dudau@arm.com>
Date: Mon, 29 Sep 2014 15:29:25 +0100
Subject: of/pci: Fix the conversion of IO ranges into IO resources
The ranges property for a host bridge controller in DT describes the
mapping between the PCI bus address and the CPU physical address. The
resources framework however expects that the IO resources start at a pseudo
"port" address 0 (zero) and have a maximum size of IO_SPACE_LIMIT. The
conversion from PCI ranges to resources failed to take that into account,
returning a CPU physical address instead of a port number.
Also fix all the drivers that depend on the old behaviour by fetching the
CPU physical address based on the port number where it is being needed.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
CC: Grant Likely <grant.likely@linaro.org>
CC: Rob Herring <robh+dt@kernel.org>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Simon Horman <horms@verge.net.au>
CC: Catalin Marinas <catalin.marinas@arm.com>
---
include/linux/of_address.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index a38e1c846c23..8cb14eb393d6 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -134,9 +134,9 @@ extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
u64 *size, unsigned int *flags);
extern int of_pci_address_to_resource(struct device_node *dev, int bar,
struct resource *r);
-extern void of_pci_range_to_resource(struct of_pci_range *range,
- struct device_node *np,
- struct resource *res);
+extern int of_pci_range_to_resource(struct of_pci_range *range,
+ struct device_node *np,
+ struct resource *res);
#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
struct resource *r)
@@ -149,9 +149,9 @@ static inline const __be32 *of_get_pci_address(struct device_node *dev,
{
return NULL;
}
-static inline void of_pci_range_to_resource(struct of_pci_range *range,
- struct device_node *np,
- struct resource *res)
+static inline int of_pci_range_to_resource(struct of_pci_range *range,
+ struct device_node *np,
+ struct resource *res)
{
return -ENOSYS;
}
--
cgit v1.2.1
From 670ba0c8883b576d0aec28bd7a838358a4be1406 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Mon, 29 Sep 2014 15:29:26 +0100
Subject: PCI: Add generic domain handling
The handling of PCI domains (or PCI segments in ACPI speak) is usually a
straightforward affair but its implementation is currently left to the
architectural code, with pci_domain_nr(b) querying the value of the domain
associated with bus b.
This patch introduces CONFIG_PCI_DOMAINS_GENERIC as an option that can be
selected if an architecture wants a simple implementation where the value
of the domain associated with a bus is stored in struct pci_bus.
The architectures that select CONFIG_PCI_DOMAINS_GENERIC will then have to
implement pci_bus_assign_domain_nr() as a way of setting the domain number
associated with a root bus. All child buses except the root bus will
inherit the domain_nr value from their parent.
Signed-off-by: Catalin Marinas <Catalin.Marinas@arm.com>
[Renamed pci_set_domain_nr() to pci_bus_assign_domain_nr()]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Arnd Bergmann <arnd@arndb.de>
---
include/linux/pci.h | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
(limited to 'include')
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 61978a460841..a494e5d775c3 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -456,6 +456,9 @@ struct pci_bus {
unsigned char primary; /* number of primary bridge */
unsigned char max_bus_speed; /* enum pci_bus_speed */
unsigned char cur_bus_speed; /* enum pci_bus_speed */
+#ifdef CONFIG_PCI_DOMAINS_GENERIC
+ int domain_nr;
+#endif
char name[48];
@@ -1288,6 +1291,24 @@ static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
static inline int pci_proc_domain(struct pci_bus *bus) { return 0; }
#endif /* CONFIG_PCI_DOMAINS */
+/*
+ * Generic implementation for PCI domain support. If your
+ * architecture does not need custom management of PCI
+ * domains then this implementation will be used
+ */
+#ifdef CONFIG_PCI_DOMAINS_GENERIC
+static inline int pci_domain_nr(struct pci_bus *bus)
+{
+ return bus->domain_nr;
+}
+void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent);
+#else
+static inline void pci_bus_assign_domain_nr(struct pci_bus *bus,
+ struct device *parent)
+{
+}
+#endif
+
/* some architectures require additional setup to direct VGA traffic */
typedef int (*arch_set_vga_state_t)(struct pci_dev *pdev, bool decode,
unsigned int command_bits, u32 flags);
--
cgit v1.2.1
From 41e5c0f81d3e676d671d96a0a1fafb27abfbd9d7 Mon Sep 17 00:00:00 2001
From: Liviu Dudau <Liviu.Dudau@arm.com>
Date: Mon, 29 Sep 2014 15:29:27 +0100
Subject: of/pci: Add pci_get_new_domain_nr() and of_get_pci_domain_nr()
Add pci_get_new_domain_nr() to allocate a new domain number and
of_get_pci_domain_nr() to retrieve the PCI domain number of a given device
from DT. Host bridge drivers or architecture-specific code can choose to
implement their PCI domain number policy using these two functions.
Using of_get_pci_domain_nr() guarantees a stable PCI domain number on every
boot provided that all host bridge controllers are assigned a number in the
device tree using "linux,pci-domain" property. Mixing use of
pci_get_new_domain_nr() and of_get_pci_domain_nr() is not recommended as it
can lead to potentially conflicting domain numbers being assigned to root
buses behind different host bridges.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Grant Likely <grant.likely@linaro.org>
CC: Rob Herring <robh+dt@kernel.org>
CC: Catalin Marinas <catalin.marinas@arm.com>
---
include/linux/of_pci.h | 7 +++++++
include/linux/pci.h | 3 +++
2 files changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index dde3a4a0fa5d..71062e9602f5 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -15,6 +15,7 @@ struct device_node *of_pci_find_child_device(struct device_node *parent,
int of_pci_get_devfn(struct device_node *np);
int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
+int of_get_pci_domain_nr(struct device_node *node);
#else
static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
{
@@ -43,6 +44,12 @@ of_pci_parse_bus_range(struct device_node *node, struct resource *res)
{
return -EINVAL;
}
+
+static inline int
+of_get_pci_domain_nr(struct device_node *node)
+{
+ return -1;
+}
#endif
#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index a494e5d775c3..150da2d644e7 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1285,10 +1285,12 @@ void pci_cfg_access_unlock(struct pci_dev *dev);
*/
#ifdef CONFIG_PCI_DOMAINS
extern int pci_domains_supported;
+int pci_get_new_domain_nr(void);
#else
enum { pci_domains_supported = 0 };
static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
static inline int pci_proc_domain(struct pci_bus *bus) { return 0; }
+static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
#endif /* CONFIG_PCI_DOMAINS */
/*
@@ -1417,6 +1419,7 @@ static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
+static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
#define dev_is_pci(d) (false)
#define dev_is_pf(d) (false)
--
cgit v1.2.1
From cbe4097f8ae699ebbdaf8c95ecab38d47e0bd5da Mon Sep 17 00:00:00 2001
From: Liviu Dudau <Liviu.Dudau@arm.com>
Date: Mon, 29 Sep 2014 15:29:28 +0100
Subject: of/pci: Add support for parsing PCI host bridge resources from DT
Provide a function to parse the PCI DT ranges that can be used to create a
pci_host_bridge structure together with its associated bus.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
[make io_base parameter optional]
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Grant Likely <grant.likely@linaro.org>
CC: Rob Herring <robh+dt@kernel.org>
CC: Catalin Marinas <catalin.marinas@arm.com>
---
include/linux/of_pci.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 71062e9602f5..1fd207e7a847 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -52,6 +52,12 @@ of_get_pci_domain_nr(struct device_node *node)
}
#endif
+#if defined(CONFIG_OF_ADDRESS)
+int of_pci_get_host_bridge_resources(struct device_node *dev,
+ unsigned char busno, unsigned char bus_max,
+ struct list_head *resources, resource_size_t *io_base);
+#endif
+
#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
int of_pci_msi_chip_add(struct msi_chip *chip);
void of_pci_msi_chip_remove(struct msi_chip *chip);
--
cgit v1.2.1
From 8b921acfeffdb0b45085da862fc301a2d25ed2cf Mon Sep 17 00:00:00 2001
From: Liviu Dudau <Liviu.Dudau@arm.com>
Date: Mon, 29 Sep 2014 15:29:30 +0100
Subject: PCI: Add pci_remap_iospace() to map bus I/O resources
Add pci_remap_iospace() to map bus I/O resources into the CPU virtual
address space. Architectures with special needs may provide their own
version, but most should be able to use this one.
This function is useful for PCI host bridge drivers that need to map the
PCI I/O resources into virtual memory space.
[bhelgaas: phys_addr description, drop temporary "err" variable]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
CC: Arnd Bergmann <arnd@arndb.de>
---
include/asm-generic/pgtable.h | 4 ++++
include/linux/pci.h | 3 +++
2 files changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 53b2acc38213..977e545a64c3 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -249,6 +249,10 @@ static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
#define pgprot_writecombine pgprot_noncached
#endif
+#ifndef pgprot_device
+#define pgprot_device pgprot_noncached
+#endif
+
/*
* When walking page tables, get the address of the next boundary,
* or the end address of the range if that comes earlier. Although no
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 150da2d644e7..b4995fdfffb1 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1100,6 +1100,9 @@ int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
resource_size_t),
void *alignf_data);
+
+int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr);
+
static inline dma_addr_t pci_bus_address(struct pci_dev *pdev, int bar)
{
struct pci_bus_region region;
--
cgit v1.2.1
From 7704ac937345d4b502062952657027234aa86a37 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 23 Sep 2014 12:08:08 -0400
Subject: HID: wacom: implement generic HID handling for pen generic devices
ISDv4 and v5 are plain HID devices. We can directly implement a generic
HID parsing/handling and remove the need to manually add those PID in
the list of supported devices.
This patch implements the pen support only. The finger part will come in
a later patch.
To be properly notified of an .event() and a .report(), we need to force
hid-core to go through the HID parsing. By default, wacom.ko binds only
hidraw, so the hid parsing is not done by hid-core. When a true HID device
is there, we add the flag HID_CLAIMED_DRIVER to hid->claimed which will
force hid-core to parse the incoming reports.
(Note that this can be easily backported by directly setting the .claimed
flag to HID_CLAIMED_DRIVER even if hid-core does not support
HID_CONNECT_DRIVER)
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/hid.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/hid.h b/include/linux/hid.h
index f53c4a9cca1d..3dcd00496064 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -265,6 +265,7 @@ struct hid_item {
#define HID_CONNECT_HIDDEV 0x08
#define HID_CONNECT_HIDDEV_FORCE 0x10
#define HID_CONNECT_FF 0x20
+#define HID_CONNECT_DRIVER 0x40
#define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
HID_CONNECT_HIDDEV|HID_CONNECT_FF)
@@ -440,6 +441,7 @@ struct hid_output_fifo {
#define HID_CLAIMED_INPUT 1
#define HID_CLAIMED_HIDDEV 2
#define HID_CLAIMED_HIDRAW 4
+#define HID_CLAIMED_DRIVER 8
#define HID_STAT_ADDED 1
#define HID_STAT_PARSED 2
--
cgit v1.2.1
From 45341ca3fcacc8720c425e757a627ef81b65b1ee Mon Sep 17 00:00:00 2001
From: Subhash Jadavani <subhashj@codeaurora.org>
Date: Thu, 25 Sep 2014 15:32:19 +0300
Subject: scsi: fix the type for well known LUs
Some devices may respond with wrong type for well-known logical units.
This patch forces well-known type for devices which doesn't report it
correct.
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 261e708010da..d17178e6fcdd 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -333,6 +333,7 @@ static inline int scsi_status_is_good(int status)
#define TYPE_RBC 0x0e
#define TYPE_OSD 0x11
#define TYPE_ZBC 0x14
+#define TYPE_WLUN 0x1e /* well-known logical unit */
#define TYPE_NO_LUN 0x7f
/* SCSI protocols; these are taken from SPC-3 section 7.5 */
--
cgit v1.2.1
From ad975ebad4c3ce8dcc7d0bb4db26ea5aca4cfc99 Mon Sep 17 00:00:00 2001
From: Alexander Gordeev <agordeev@redhat.com>
Date: Tue, 23 Sep 2014 12:39:54 -0600
Subject: PCI/MSI: Remove arch_msi_check_device()
No architectures implement arch_msi_check_device() or the struct msi_chip
.check_device() method, so remove them.
Remove the "type" parameter to pci_msi_check_device() because it was only
used to call arch_msi_check_device() and is no longer needed.
[bhelgaas: changelog, split to separate patch]
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/msi.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 8103f32f6d87..dbf7cc932444 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -60,7 +60,6 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc);
void arch_teardown_msi_irq(unsigned int irq);
int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
void arch_teardown_msi_irqs(struct pci_dev *dev);
-int arch_msi_check_device(struct pci_dev* dev, int nvec, int type);
void arch_restore_msi_irqs(struct pci_dev *dev);
void default_teardown_msi_irqs(struct pci_dev *dev);
@@ -77,8 +76,6 @@ struct msi_chip {
int (*setup_irq)(struct msi_chip *chip, struct pci_dev *dev,
struct msi_desc *desc);
void (*teardown_irq)(struct msi_chip *chip, unsigned int irq);
- int (*check_device)(struct msi_chip *chip, struct pci_dev *dev,
- int nvec, int type);
};
#endif /* LINUX_MSI_H */
--
cgit v1.2.1
From 81052769e48609525c452d8f078a5786b673e178 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 23 Sep 2014 13:27:22 +0800
Subject: PCI/MSI: Remove unused kobject from struct msi_desc
After commit 1c51b50c2995 ("PCI/MSI: Export MSI mode using attributes, not
kobjects"), the kobject in struct msi_desc is unused.
Remove the unused struct kobject from struct msi_desc.
[bhelgaas: changelog]
Fixes: 1c51b50c2995 ("PCI/MSI: Export MSI mode using attributes, not kobjects")
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/msi.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index dbf7cc932444..5a91c2d58ffd 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -47,8 +47,6 @@ struct msi_desc {
/* Last set MSI message */
struct msi_msg msg;
-
- struct kobject kobj;
};
/*
--
cgit v1.2.1
From 48c3c38f003c25d50a09d3da558667c5ecd530aa Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 23 Sep 2014 11:02:42 -0600
Subject: PCI/MSI: Remove "pos" from the struct msi_desc msi_attrib
"msi_attrib.pos" is only used for MSI (not MSI-X), and we already cache the
MSI capability offset in "dev->msi_cap".
Remove "pos" from the struct msi_attrib and use "dev->msi_cap" directly.
[bhelgaas: changelog, fix whitespace]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/msi.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 5a91c2d58ffd..44f4746d033b 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -29,7 +29,6 @@ struct msi_desc {
__u8 multi_cap : 3; /* log2 num of messages supported */
__u8 maskbit : 1; /* mask-pending bit supported ? */
__u8 is_64 : 1; /* Address size: 0=32bit 1=64bit */
- __u8 pos; /* Location of the msi capability */
__u16 entry_nr; /* specific enabled entry */
unsigned default_irq; /* default pre-assigned irq */
} msi_attrib;
--
cgit v1.2.1
From f3fa1bbd836a7d6efb2abd506ed8e24096f39062 Mon Sep 17 00:00:00 2001
From: Oder Chiou <oder_chiou@realtek.com>
Date: Fri, 19 Sep 2014 19:15:45 +0800
Subject: ASoC: rt5645: Add headset detect function
Add headset detect function
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/rt5645.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/sound/rt5645.h b/include/sound/rt5645.h
index 1de744c242f6..a5352712194b 100644
--- a/include/sound/rt5645.h
+++ b/include/sound/rt5645.h
@@ -20,6 +20,9 @@ struct rt5645_platform_data {
/* 0 = IN2N; 1 = GPIO5; 2 = GPIO11 */
unsigned int dmic2_data_pin;
/* 0 = IN2P; 1 = GPIO6; 2 = GPIO10; 3 = GPIO12 */
+
+ unsigned int hp_det_gpio;
+ bool gpio_hp_det_active_high;
};
#endif
--
cgit v1.2.1
From d0bf4a9e92b9a93ffeeacbd7b6cb83e0ee3dc2ef Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 29 Sep 2014 13:29:15 -0700
Subject: net: cleanup and document skb fclone layout
Lets use a proper structure to clearly document and implement
skb fast clones.
Then, we might experiment more easily alternative layouts.
This patch adds a new skb_fclone_busy() helper, used by tcp and xfrm,
to stop leaking of implementation details.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 262efdbc346b..d8f7d74d5a4d 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -781,6 +781,31 @@ struct sk_buff *alloc_skb_with_frags(unsigned long header_len,
int *errcode,
gfp_t gfp_mask);
+/* Layout of fast clones : [skb1][skb2][fclone_ref] */
+struct sk_buff_fclones {
+ struct sk_buff skb1;
+
+ struct sk_buff skb2;
+
+ atomic_t fclone_ref;
+};
+
+/**
+ * skb_fclone_busy - check if fclone is busy
+ * @skb: buffer
+ *
+ * Returns true is skb is a fast clone, and its clone is not freed.
+ */
+static inline bool skb_fclone_busy(const struct sk_buff *skb)
+{
+ const struct sk_buff_fclones *fclones;
+
+ fclones = container_of(skb, struct sk_buff_fclones, skb1);
+
+ return skb->fclone == SKB_FCLONE_ORIG &&
+ fclones->skb2.fclone == SKB_FCLONE_CLONE;
+}
+
static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
gfp_t priority)
{
--
cgit v1.2.1
From 33940d09937276cd3c81f2874faf43e37c2db0e2 Mon Sep 17 00:00:00 2001
From: Joern Engel <joern@logfs.org>
Date: Tue, 16 Sep 2014 16:23:12 -0400
Subject: target: encapsulate smp_mb__after_atomic()
The target code has a rather generous helping of smp_mb__after_atomic()
throughout the code base. Most atomic operations were followed by one
and none were preceded by smp_mb__before_atomic(), nor accompanied by a
comment explaining the need for a barrier.
Instead of trying to prove for every case whether or not it is needed,
this patch introduces atomic_inc_mb() and atomic_dec_mb(), which
explicitly include the memory barriers before and after the atomic
operation. For now they are defined in a target header, although they
could be of general use.
Most of the existing atomic/mb combinations were replaced by the new
helpers. In a few cases the atomic was sandwiched in
spin_lock/spin_unlock and I simply removed the barrier.
I suspect that in most cases the correct conversion would have been to
drop the barrier. I also suspect that a few cases exist where a) the
barrier was necessary and b) a second barrier before the atomic would
have been necessary and got added by this patch.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_base.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
(limited to 'include')
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 9ec9864ecf38..b106240d8385 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -903,4 +903,18 @@ struct se_wwn {
struct config_group fabric_stat_group;
};
+static inline void atomic_inc_mb(atomic_t *v)
+{
+ smp_mb__before_atomic();
+ atomic_inc(v);
+ smp_mb__after_atomic();
+}
+
+static inline void atomic_dec_mb(atomic_t *v)
+{
+ smp_mb__before_atomic();
+ atomic_dec(v);
+ smp_mb__after_atomic();
+}
+
#endif /* TARGET_CORE_BASE_H */
--
cgit v1.2.1
From 8bce6d7d0d1ede22af334ee241841e9278365278 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Mon, 29 Sep 2014 20:22:29 -0700
Subject: udp: Generalize skb_udp_segment
skb_udp_segment is the function called from udp4_ufo_fragment to
segment a UDP tunnel packet. This function currently assumes
segmentation is transparent Ethernet bridging (i.e. VXLAN
encapsulation). This patch generalizes the function to
operate on either Ethertype or IP protocol.
The inner_protocol field must be set to the protocol of the inner
header. This can now be either an Ethertype or an IP protocol
(in a union). A new flag in the skbuff indicates which type is
effective. skb_set_inner_protocol and skb_set_inner_ipproto
helper functions were added to set the inner_protocol. These
functions are called from the point where the tunnel encapsulation
is occuring.
When skb_udp_tunnel_segment is called, the function to segment the
inner packet is selected based on the inner IP or Ethertype. In the
case of an IP protocol encapsulation, the function is derived from
inet[6]_offloads. In the case of Ethertype, skb->protocol is
set to the inner_protocol and skb_mac_gso_segment is called. (GRE
currently does this, but it might be possible to lookup the protocol
in offload_base and call the appropriate segmenation function
directly).
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 26 ++++++++++++++++++++++++--
include/net/udp.h | 3 ++-
2 files changed, 26 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d8f7d74d5a4d..7c5036d11feb 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -596,7 +596,8 @@ struct sk_buff {
__u8 ndisc_nodetype:2;
#endif
__u8 ipvs_property:1;
- /* 5 or 7 bit hole */
+ __u8 inner_protocol_type:1;
+ /* 4 or 6 bit hole */
#ifdef CONFIG_NET_SCHED
__u16 tc_index; /* traffic control index */
@@ -632,7 +633,11 @@ struct sk_buff {
__u32 reserved_tailroom;
};
- __be16 inner_protocol;
+ union {
+ __be16 inner_protocol;
+ __u8 inner_ipproto;
+ };
+
__u16 inner_transport_header;
__u16 inner_network_header;
__u16 inner_mac_header;
@@ -1762,6 +1767,23 @@ static inline void skb_reserve(struct sk_buff *skb, int len)
skb->tail += len;
}
+#define ENCAP_TYPE_ETHER 0
+#define ENCAP_TYPE_IPPROTO 1
+
+static inline void skb_set_inner_protocol(struct sk_buff *skb,
+ __be16 protocol)
+{
+ skb->inner_protocol = protocol;
+ skb->inner_protocol_type = ENCAP_TYPE_ETHER;
+}
+
+static inline void skb_set_inner_ipproto(struct sk_buff *skb,
+ __u8 ipproto)
+{
+ skb->inner_ipproto = ipproto;
+ skb->inner_protocol_type = ENCAP_TYPE_IPPROTO;
+}
+
static inline void skb_reset_inner_headers(struct sk_buff *skb)
{
skb->inner_mac_header = skb->mac_header;
diff --git a/include/net/udp.h b/include/net/udp.h
index 16f4e80f0519..07f9b70962f6 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -239,7 +239,8 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
int udp_disconnect(struct sock *sk, int flags);
unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait);
struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
- netdev_features_t features);
+ netdev_features_t features,
+ bool is_ipv6);
int udp_lib_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int udp_lib_setsockopt(struct sock *sk, int level, int optname,
--
cgit v1.2.1
From 90a8020278c1598fafd071736a0846b38510309c Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 1 Oct 2014 21:49:18 -0400
Subject: vfs: fix data corruption when blocksize < pagesize for mmaped data
->page_mkwrite() is used by filesystems to allocate blocks under a page
which is becoming writeably mmapped in some process' address space. This
allows a filesystem to return a page fault if there is not enough space
available, user exceeds quota or similar problem happens, rather than
silently discarding data later when writepage is called.
However VFS fails to call ->page_mkwrite() in all the cases where
filesystems need it when blocksize < pagesize. For example when
blocksize = 1024, pagesize = 4096 the following is problematic:
ftruncate(fd, 0);
pwrite(fd, buf, 1024, 0);
map = mmap(NULL, 1024, PROT_WRITE, MAP_SHARED, fd, 0);
map[0] = 'a'; ----> page_mkwrite() for index 0 is called
ftruncate(fd, 10000); /* or even pwrite(fd, buf, 1, 10000) */
mremap(map, 1024, 10000, 0);
map[4095] = 'a'; ----> no page_mkwrite() called
At the moment ->page_mkwrite() is called, filesystem can allocate only
one block for the page because i_size == 1024. Otherwise it would create
blocks beyond i_size which is generally undesirable. But later at
->writepage() time, we also need to store data at offset 4095 but we
don't have block allocated for it.
This patch introduces a helper function filesystems can use to have
->page_mkwrite() called at all the necessary moments.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
---
include/linux/mm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8981cc882ed2..5005464fe012 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1155,6 +1155,7 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
extern void truncate_pagecache(struct inode *inode, loff_t new);
extern void truncate_setsize(struct inode *inode, loff_t newsize);
+void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to);
void truncate_pagecache_range(struct inode *inode, loff_t offset, loff_t end);
int truncate_inode_page(struct address_space *mapping, struct page *page);
int generic_error_remove_page(struct address_space *mapping, struct page *page);
--
cgit v1.2.1
From a0efb80ce3abacfd22a4284c3730924fc2f1f077 Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Tue, 30 Sep 2014 16:07:24 -0700
Subject: net_sched: avoid calling tcf_unbind_filter() in call_rcu callback
This fixes the following crash:
[ 63.976822] general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 63.980094] CPU: 1 PID: 15 Comm: ksoftirqd/1 Not tainted 3.17.0-rc6+ #648
[ 63.980094] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 63.980094] task: ffff880117dea690 ti: ffff880117dfc000 task.ti: ffff880117dfc000
[ 63.980094] RIP: 0010:[<ffffffff817e6d07>] [<ffffffff817e6d07>] u32_destroy_key+0x27/0x6d
[ 63.980094] RSP: 0018:ffff880117dffcc0 EFLAGS: 00010202
[ 63.980094] RAX: ffff880117dea690 RBX: ffff8800d02e0820 RCX: 0000000000000000
[ 63.980094] RDX: 0000000000000001 RSI: 0000000000000002 RDI: 6b6b6b6b6b6b6b6b
[ 63.980094] RBP: ffff880117dffcd0 R08: 0000000000000000 R09: 0000000000000000
[ 63.980094] R10: 00006c0900006ba8 R11: 00006ba100006b9d R12: 0000000000000001
[ 63.980094] R13: ffff8800d02e0898 R14: ffffffff817e6d4d R15: ffff880117387a30
[ 63.980094] FS: 0000000000000000(0000) GS:ffff88011a800000(0000) knlGS:0000000000000000
[ 63.980094] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 63.980094] CR2: 00007f07e6732fed CR3: 000000011665b000 CR4: 00000000000006e0
[ 63.980094] Stack:
[ 63.980094] ffff88011a9cd300 ffffffff82051ac0 ffff880117dffce0 ffffffff817e6d68
[ 63.980094] ffff880117dffd70 ffffffff810cb4c7 ffffffff810cb3cd ffff880117dfffd8
[ 63.980094] ffff880117dea690 ffff880117dea690 ffff880117dfffd8 000000000000000a
[ 63.980094] Call Trace:
[ 63.980094] [<ffffffff817e6d68>] u32_delete_key_freepf_rcu+0x1b/0x1d
[ 63.980094] [<ffffffff810cb4c7>] rcu_process_callbacks+0x3bb/0x691
[ 63.980094] [<ffffffff810cb3cd>] ? rcu_process_callbacks+0x2c1/0x691
[ 63.980094] [<ffffffff817e6d4d>] ? u32_destroy_key+0x6d/0x6d
[ 63.980094] [<ffffffff810780a4>] __do_softirq+0x142/0x323
[ 63.980094] [<ffffffff810782a8>] run_ksoftirqd+0x23/0x53
[ 63.980094] [<ffffffff81092126>] smpboot_thread_fn+0x203/0x221
[ 63.980094] [<ffffffff81091f23>] ? smpboot_unpark_thread+0x33/0x33
[ 63.980094] [<ffffffff8108e44d>] kthread+0xc9/0xd1
[ 63.980094] [<ffffffff819e00ea>] ? do_wait_for_common+0xf8/0x125
[ 63.980094] [<ffffffff8108e384>] ? __kthread_parkme+0x61/0x61
[ 63.980094] [<ffffffff819e43ec>] ret_from_fork+0x7c/0xb0
[ 63.980094] [<ffffffff8108e384>] ? __kthread_parkme+0x61/0x61
tp could be freed in call_rcu callback too, the order is not guaranteed.
John Fastabend says:
====================
Its worth noting why this is safe. Any running schedulers will either
read the valid class field or it will be zeroed.
All schedulers today when the class is 0 do a lookup using the
same call used by the tcf_exts_bind(). So even if we have a running
classifier hit the null class pointer it will do a lookup and get
to the same result. This is particularly fragile at the moment because
the only way to verify this is to audit the schedulers call sites.
====================
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/pkt_cls.h | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 73f9532ee581..ef44ad9a6426 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -20,11 +20,7 @@ int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
static inline unsigned long
__cls_set_class(unsigned long *clp, unsigned long cl)
{
- unsigned long old_cl;
-
- old_cl = *clp;
- *clp = cl;
- return old_cl;
+ return xchg(clp, cl);
}
static inline unsigned long
--
cgit v1.2.1
From d068b02cfdfc27f5962ec82ec5568b706f599edc Mon Sep 17 00:00:00 2001
From: Petri Gynther <pgynther@google.com>
Date: Wed, 1 Oct 2014 11:58:02 -0700
Subject: net: phy: add BCM7425 and BCM7429 PHYs
Signed-off-by: Petri Gynther <pgynther@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/brcmphy.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 3f626fe48c9a..7ccd928cc1f2 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -16,6 +16,8 @@
#define PHY_ID_BCM7250 0xae025280
#define PHY_ID_BCM7364 0xae025260
#define PHY_ID_BCM7366 0x600d8490
+#define PHY_ID_BCM7425 0x03625e60
+#define PHY_ID_BCM7429 0x600d8730
#define PHY_ID_BCM7439 0x600d8480
#define PHY_ID_BCM7445 0x600d8510
--
cgit v1.2.1
From 599bad38cf7163123af7c9efea0fcf228bc74fe1 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Tue, 30 Sep 2014 13:02:02 +0200
Subject: driver core: Add BUS_NOTIFY_REMOVED_DEVICE event
This event closes an important gap in the bus notifiers.
There is already the BUS_NOTIFY_DEL_DEVICE event, but that
is sent when the device is still bound to its device driver.
This is too early for the IOMMU code to destroy any mappings
for the device, as they might still be in use by the driver.
The new BUS_NOTIFY_REMOVED_DEVICE event introduced with this
patch closes this gap as it is sent when the device is
already unbound from its device driver and almost completly
removed from the driver core.
With this event the IOMMU code can safely destroy any
mappings and other data structures when a device is removed.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Jerry Hoemann <jerry.hoemann@hp.com>
---
include/linux/device.h | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/device.h b/include/linux/device.h
index 43d183aeb25b..d0d5c5db509d 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -181,13 +181,14 @@ extern int bus_unregister_notifier(struct bus_type *bus,
* with the device lock held in the core, so be careful.
*/
#define BUS_NOTIFY_ADD_DEVICE 0x00000001 /* device added */
-#define BUS_NOTIFY_DEL_DEVICE 0x00000002 /* device removed */
-#define BUS_NOTIFY_BIND_DRIVER 0x00000003 /* driver about to be
+#define BUS_NOTIFY_DEL_DEVICE 0x00000002 /* device to be removed */
+#define BUS_NOTIFY_REMOVED_DEVICE 0x00000003 /* device removed */
+#define BUS_NOTIFY_BIND_DRIVER 0x00000004 /* driver about to be
bound */
-#define BUS_NOTIFY_BOUND_DRIVER 0x00000004 /* driver bound to device */
-#define BUS_NOTIFY_UNBIND_DRIVER 0x00000005 /* driver about to be
+#define BUS_NOTIFY_BOUND_DRIVER 0x00000005 /* driver bound to device */
+#define BUS_NOTIFY_UNBIND_DRIVER 0x00000006 /* driver about to be
unbound */
-#define BUS_NOTIFY_UNBOUND_DRIVER 0x00000006 /* driver is unbound
+#define BUS_NOTIFY_UNBOUND_DRIVER 0x00000007 /* driver is unbound
from the device */
extern struct kset *bus_get_kset(struct bus_type *bus);
--
cgit v1.2.1
From 89168b48991537bec2573b3b6a8841df74465b12 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 2 Oct 2014 09:08:46 +0200
Subject: mmc: core: restore detect line inversion semantics
commit 98e90de99a0c43bd434da814c882c4332441871e
"mmc: host: switch OF parser to use gpio descriptors"
switched the semantic behaviour of card detect and read
only flags such that the inversion capability flag would
only be set if inversion was explicitly specified in the
device tree, in the hopes that no-one was using double
inversion.
It turns out that the XOR:ing between the explicit
inversion was indeed in use, so we need to restore the
old semantics where both ways of inversion are checked
and the end result XOR:ed.
Reported-by: Javier Martinez Canillas <javier@dowhile0.org>
Tested-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/slot-gpio.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h
index a0d0442c15bf..e56fa24c9322 100644
--- a/include/linux/mmc/slot-gpio.h
+++ b/include/linux/mmc/slot-gpio.h
@@ -24,10 +24,10 @@ void mmc_gpio_free_cd(struct mmc_host *host);
int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
unsigned int idx, bool override_active_level,
- unsigned int debounce);
+ unsigned int debounce, bool *gpio_invert);
int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
unsigned int idx, bool override_active_level,
- unsigned int debounce);
+ unsigned int debounce, bool *gpio_invert);
void mmc_gpiod_free_cd(struct mmc_host *host);
void mmc_gpiod_request_cd_irq(struct mmc_host *host);
--
cgit v1.2.1
From 57384592c43375d2c9a14d82aebbdc95fdda9e9d Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 2 Oct 2014 11:50:25 +0200
Subject: iommu/vt-d: Store bus information in RMRR PCI device path
This will be used later to match broken RMRR entries.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/linux/dmar.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 1deece46a0ca..593fff99e6bf 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -56,13 +56,19 @@ struct dmar_drhd_unit {
struct intel_iommu *iommu;
};
+struct dmar_pci_path {
+ u8 bus;
+ u8 device;
+ u8 function;
+};
+
struct dmar_pci_notify_info {
struct pci_dev *dev;
unsigned long event;
int bus;
u16 seg;
u16 level;
- struct acpi_dmar_pci_path path[];
+ struct dmar_pci_path path[];
} __attribute__((packed));
extern struct rw_semaphore dmar_global_lock;
--
cgit v1.2.1
From 51b0a5d8c21a91801bbef9bcc8639dc0b206c6cd Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Fri, 26 Sep 2014 14:35:14 +0200
Subject: netfilter: nft_reject: introduce icmp code abstraction for inet and
bridge
This patch introduces the NFT_REJECT_ICMPX_UNREACH type which provides
an abstraction to the ICMP and ICMPv6 codes that you can use from the
inet and bridge tables, they are:
* NFT_REJECT_ICMPX_NO_ROUTE: no route to host - network unreachable
* NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable
* NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable
* NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratevely prohibited
You can still use the specific codes when restricting the rule to match
the corresponding layer 3 protocol.
I decided to not overload the existing NFT_REJECT_ICMP_UNREACH to have
different semantics depending on the table family and to allow the user
to specify ICMP family specific codes if they restrict it to the
corresponding family.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv4/nf_reject.h | 1 +
include/net/netfilter/nft_reject.h | 9 ++-------
include/uapi/linux/netfilter/nf_tables.h | 21 +++++++++++++++++++++
3 files changed, 24 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/net/netfilter/ipv4/nf_reject.h b/include/net/netfilter/ipv4/nf_reject.h
index f713b5a31d62..8ce06385a552 100644
--- a/include/net/netfilter/ipv4/nf_reject.h
+++ b/include/net/netfilter/ipv4/nf_reject.h
@@ -5,6 +5,7 @@
#include <net/tcp.h>
#include <net/route.h>
#include <net/dst.h>
+#include <net/icmp.h>
static inline void nf_send_unreach(struct sk_buff *skb_in, int code)
{
diff --git a/include/net/netfilter/nft_reject.h b/include/net/netfilter/nft_reject.h
index 36b0da2d55bb..60fa1530006b 100644
--- a/include/net/netfilter/nft_reject.h
+++ b/include/net/netfilter/nft_reject.h
@@ -14,12 +14,7 @@ int nft_reject_init(const struct nft_ctx *ctx,
int nft_reject_dump(struct sk_buff *skb, const struct nft_expr *expr);
-void nft_reject_ipv4_eval(const struct nft_expr *expr,
- struct nft_data data[NFT_REG_MAX + 1],
- const struct nft_pktinfo *pkt);
-
-void nft_reject_ipv6_eval(const struct nft_expr *expr,
- struct nft_data data[NFT_REG_MAX + 1],
- const struct nft_pktinfo *pkt);
+int nft_reject_icmp_code(u8 code);
+int nft_reject_icmpv6_code(u8 code);
#endif
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index b72ccfeaf865..c26df6787fb0 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -749,12 +749,33 @@ enum nft_queue_attributes {
*
* @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
* @NFT_REJECT_TCP_RST: reject using TCP RST
+ * @NFT_REJECT_ICMPX_UNREACH: abstracted ICMP unreachable for bridge and inet
*/
enum nft_reject_types {
NFT_REJECT_ICMP_UNREACH,
NFT_REJECT_TCP_RST,
+ NFT_REJECT_ICMPX_UNREACH,
};
+/**
+ * enum nft_reject_code - Generic reject codes for IPv4/IPv6
+ *
+ * @NFT_REJECT_ICMPX_NO_ROUTE: no route to host / network unreachable
+ * @NFT_REJECT_ICMPX_PORT_UNREACH: port unreachable
+ * @NFT_REJECT_ICMPX_HOST_UNREACH: host unreachable
+ * @NFT_REJECT_ICMPX_ADMIN_PROHIBITED: administratively prohibited
+ *
+ * These codes are mapped to real ICMP and ICMPv6 codes.
+ */
+enum nft_reject_inet_code {
+ NFT_REJECT_ICMPX_NO_ROUTE = 0,
+ NFT_REJECT_ICMPX_PORT_UNREACH,
+ NFT_REJECT_ICMPX_HOST_UNREACH,
+ NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
+ __NFT_REJECT_ICMPX_MAX
+};
+#define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX + 1)
+
/**
* enum nft_reject_attributes - nf_tables reject expression netlink attributes
*
--
cgit v1.2.1
From c8d7b98bec43faaa6583c3135030be5eb4693acb Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Fri, 26 Sep 2014 14:35:15 +0200
Subject: netfilter: move nf_send_resetX() code to nf_reject_ipvX modules
Move nf_send_reset() and nf_send_reset6() to nf_reject_ipv4 and
nf_reject_ipv6 respectively. This code is shared by x_tables and
nf_tables.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv4/nf_reject.h | 118 +--------------------------------
1 file changed, 1 insertion(+), 117 deletions(-)
(limited to 'include')
diff --git a/include/net/netfilter/ipv4/nf_reject.h b/include/net/netfilter/ipv4/nf_reject.h
index 8ce06385a552..e8427193c777 100644
--- a/include/net/netfilter/ipv4/nf_reject.h
+++ b/include/net/netfilter/ipv4/nf_reject.h
@@ -1,10 +1,6 @@
#ifndef _IPV4_NF_REJECT_H
#define _IPV4_NF_REJECT_H
-#include <net/ip.h>
-#include <net/tcp.h>
-#include <net/route.h>
-#include <net/dst.h>
#include <net/icmp.h>
static inline void nf_send_unreach(struct sk_buff *skb_in, int code)
@@ -12,118 +8,6 @@ static inline void nf_send_unreach(struct sk_buff *skb_in, int code)
icmp_send(skb_in, ICMP_DEST_UNREACH, code, 0);
}
-/* Send RST reply */
-static void nf_send_reset(struct sk_buff *oldskb, int hook)
-{
- struct sk_buff *nskb;
- const struct iphdr *oiph;
- struct iphdr *niph;
- const struct tcphdr *oth;
- struct tcphdr _otcph, *tcph;
-
- /* IP header checks: fragment. */
- if (ip_hdr(oldskb)->frag_off & htons(IP_OFFSET))
- return;
-
- oth = skb_header_pointer(oldskb, ip_hdrlen(oldskb),
- sizeof(_otcph), &_otcph);
- if (oth == NULL)
- return;
-
- /* No RST for RST. */
- if (oth->rst)
- return;
-
- if (skb_rtable(oldskb)->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST))
- return;
-
- /* Check checksum */
- if (nf_ip_checksum(oldskb, hook, ip_hdrlen(oldskb), IPPROTO_TCP))
- return;
- oiph = ip_hdr(oldskb);
-
- nskb = alloc_skb(sizeof(struct iphdr) + sizeof(struct tcphdr) +
- LL_MAX_HEADER, GFP_ATOMIC);
- if (!nskb)
- return;
-
- skb_reserve(nskb, LL_MAX_HEADER);
-
- skb_reset_network_header(nskb);
- niph = (struct iphdr *)skb_put(nskb, sizeof(struct iphdr));
- niph->version = 4;
- niph->ihl = sizeof(struct iphdr) / 4;
- niph->tos = 0;
- niph->id = 0;
- niph->frag_off = htons(IP_DF);
- niph->protocol = IPPROTO_TCP;
- niph->check = 0;
- niph->saddr = oiph->daddr;
- niph->daddr = oiph->saddr;
-
- skb_reset_transport_header(nskb);
- tcph = (struct tcphdr *)skb_put(nskb, sizeof(struct tcphdr));
- memset(tcph, 0, sizeof(*tcph));
- tcph->source = oth->dest;
- tcph->dest = oth->source;
- tcph->doff = sizeof(struct tcphdr) / 4;
-
- if (oth->ack)
- tcph->seq = oth->ack_seq;
- else {
- tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin +
- oldskb->len - ip_hdrlen(oldskb) -
- (oth->doff << 2));
- tcph->ack = 1;
- }
-
- tcph->rst = 1;
- tcph->check = ~tcp_v4_check(sizeof(struct tcphdr), niph->saddr,
- niph->daddr, 0);
- nskb->ip_summed = CHECKSUM_PARTIAL;
- nskb->csum_start = (unsigned char *)tcph - nskb->head;
- nskb->csum_offset = offsetof(struct tcphdr, check);
-
- /* ip_route_me_harder expects skb->dst to be set */
- skb_dst_set_noref(nskb, skb_dst(oldskb));
-
- nskb->protocol = htons(ETH_P_IP);
- if (ip_route_me_harder(nskb, RTN_UNSPEC))
- goto free_nskb;
-
- niph->ttl = ip4_dst_hoplimit(skb_dst(nskb));
-
- /* "Never happens" */
- if (nskb->len > dst_mtu(skb_dst(nskb)))
- goto free_nskb;
-
- nf_ct_attach(nskb, oldskb);
-
-#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
- /* If we use ip_local_out for bridged traffic, the MAC source on
- * the RST will be ours, instead of the destination's. This confuses
- * some routers/firewalls, and they drop the packet. So we need to
- * build the eth header using the original destination's MAC as the
- * source, and send the RST packet directly.
- */
- if (oldskb->nf_bridge) {
- struct ethhdr *oeth = eth_hdr(oldskb);
- nskb->dev = oldskb->nf_bridge->physindev;
- niph->tot_len = htons(nskb->len);
- ip_send_check(niph);
- if (dev_hard_header(nskb, nskb->dev, ntohs(nskb->protocol),
- oeth->h_source, oeth->h_dest, nskb->len) < 0)
- goto free_nskb;
- dev_queue_xmit(nskb);
- } else
-#endif
- ip_local_out(nskb);
-
- return;
-
- free_nskb:
- kfree_skb(nskb);
-}
-
+void nf_send_reset(struct sk_buff *oldskb, int hook);
#endif /* _IPV4_NF_REJECT_H */
--
cgit v1.2.1
From 4b7fd5d97ee6e599247b4a55122ca6ba80c8148d Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 2 Oct 2014 11:13:21 +0200
Subject: netfilter: explicit module dependency between br_netfilter and
physdev
You can use physdev to match the physical interface enslaved to the
bridge device. This information is stored in skb->nf_bridge and it is
set up by br_netfilter. So, this is only available when iptables is
used from the bridge netfilter path.
Since 34666d4 ("netfilter: bridge: move br_netfilter out of the core"),
the br_netfilter code is modular. To reduce the impact of this change,
we can autoload the br_netfilter if the physdev match is used since
we assume that the users need br_netfilter in place.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/br_netfilter.h | 6 ++++++
1 file changed, 6 insertions(+)
create mode 100644 include/net/netfilter/br_netfilter.h
(limited to 'include')
diff --git a/include/net/netfilter/br_netfilter.h b/include/net/netfilter/br_netfilter.h
new file mode 100644
index 000000000000..2aa6048a55c1
--- /dev/null
+++ b/include/net/netfilter/br_netfilter.h
@@ -0,0 +1,6 @@
+#ifndef _BR_NETFILTER_H_
+#define _BR_NETFILTER_H_
+
+void br_netfilter_enable(void);
+
+#endif /* _BR_NETFILTER_H_ */
--
cgit v1.2.1
From 07dcc686fa8f6667dec4696804cdb43a90267b9a Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Tue, 30 Sep 2014 10:50:06 +0900
Subject: ipvs: Clean up comment style in ip_vs.h
* Consistently use the multi-line comment style for networking code:
/* This
* That
* The other thing
*/
* Use single-line comment style for comments with only one line of text.
* In general follow the leading '*' of each line of a comment with a
single space and then text.
* Add missing line break between functions, remove double line break,
align comments to previous lines whenever possible.
Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/ip_vs.h | 214 ++++++++++++++++++----------------------------------
1 file changed, 75 insertions(+), 139 deletions(-)
(limited to 'include')
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 576d7f0bed5d..615b20b58545 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1,6 +1,5 @@
-/*
- * IP Virtual Server
- * data structure and functionality definitions
+/* IP Virtual Server
+ * data structure and functionality definitions
*/
#ifndef _NET_IP_VS_H
@@ -12,7 +11,7 @@
#include <linux/list.h> /* for struct list_head */
#include <linux/spinlock.h> /* for struct rwlock_t */
-#include <linux/atomic.h> /* for struct atomic_t */
+#include <linux/atomic.h> /* for struct atomic_t */
#include <linux/compiler.h>
#include <linux/timer.h>
#include <linux/bug.h>
@@ -30,15 +29,13 @@
#endif
#include <net/net_namespace.h> /* Netw namespace */
-/*
- * Generic access of ipvs struct
- */
+/* Generic access of ipvs struct */
static inline struct netns_ipvs *net_ipvs(struct net* net)
{
return net->ipvs;
}
-/*
- * Get net ptr from skb in traffic cases
+
+/* Get net ptr from skb in traffic cases
* use skb_sknet when call is from userland (ioctl or netlink)
*/
static inline struct net *skb_net(const struct sk_buff *skb)
@@ -90,8 +87,8 @@ static inline struct net *skb_sknet(const struct sk_buff *skb)
return &init_net;
#endif
}
-/*
- * This one needed for single_open_net since net is stored directly in
+
+/* This one needed for single_open_net since net is stored directly in
* private not as a struct i.e. seq_file_net can't be used.
*/
static inline struct net *seq_file_single_net(struct seq_file *seq)
@@ -108,7 +105,7 @@ extern int ip_vs_conn_tab_size;
struct ip_vs_iphdr {
__u32 len; /* IPv4 simply where L4 starts
- IPv6 where L4 Transport Header starts */
+ * IPv6 where L4 Transport Header starts */
__u16 fragoffs; /* IPv6 fragment offset, 0 if first frag (or not frag)*/
__s16 protocol;
__s32 flags;
@@ -304,16 +301,11 @@ static inline const char *ip_vs_dbg_addr(int af, char *buf, size_t buf_len,
#define LeaveFunction(level) do {} while (0)
#endif
-
-/*
- * The port number of FTP service (in network order).
- */
+/* The port number of FTP service (in network order). */
#define FTPPORT cpu_to_be16(21)
#define FTPDATA cpu_to_be16(20)
-/*
- * TCP State Values
- */
+/* TCP State Values */
enum {
IP_VS_TCP_S_NONE = 0,
IP_VS_TCP_S_ESTABLISHED,
@@ -329,25 +321,19 @@ enum {
IP_VS_TCP_S_LAST
};
-/*
- * UDP State Values
- */
+/* UDP State Values */
enum {
IP_VS_UDP_S_NORMAL,
IP_VS_UDP_S_LAST,
};
-/*
- * ICMP State Values
- */
+/* ICMP State Values */
enum {
IP_VS_ICMP_S_NORMAL,
IP_VS_ICMP_S_LAST,
};
-/*
- * SCTP State Values
- */
+/* SCTP State Values */
enum ip_vs_sctp_states {
IP_VS_SCTP_S_NONE,
IP_VS_SCTP_S_INIT1,
@@ -366,21 +352,18 @@ enum ip_vs_sctp_states {
IP_VS_SCTP_S_LAST
};
-/*
- * Delta sequence info structure
- * Each ip_vs_conn has 2 (output AND input seq. changes).
- * Only used in the VS/NAT.
+/* Delta sequence info structure
+ * Each ip_vs_conn has 2 (output AND input seq. changes).
+ * Only used in the VS/NAT.
*/
struct ip_vs_seq {
__u32 init_seq; /* Add delta from this seq */
__u32 delta; /* Delta in sequence numbers */
__u32 previous_delta; /* Delta in sequence numbers
- before last resized pkt */
+ * before last resized pkt */
};
-/*
- * counters per cpu
- */
+/* counters per cpu */
struct ip_vs_counters {
__u32 conns; /* connections scheduled */
__u32 inpkts; /* incoming packets */
@@ -388,17 +371,13 @@ struct ip_vs_counters {
__u64 inbytes; /* incoming bytes */
__u64 outbytes; /* outgoing bytes */
};
-/*
- * Stats per cpu
- */
+/* Stats per cpu */
struct ip_vs_cpu_stats {
struct ip_vs_counters ustats;
struct u64_stats_sync syncp;
};
-/*
- * IPVS statistics objects
- */
+/* IPVS statistics objects */
struct ip_vs_estimator {
struct list_head list;
@@ -491,9 +470,7 @@ struct ip_vs_protocol {
void (*timeout_change)(struct ip_vs_proto_data *pd, int flags);
};
-/*
- * protocol data per netns
- */
+/* protocol data per netns */
struct ip_vs_proto_data {
struct ip_vs_proto_data *next;
struct ip_vs_protocol *pp;
@@ -520,9 +497,7 @@ struct ip_vs_conn_param {
__u8 pe_data_len;
};
-/*
- * IP_VS structure allocated for each dynamically scheduled connection
- */
+/* IP_VS structure allocated for each dynamically scheduled connection */
struct ip_vs_conn {
struct hlist_node c_list; /* hashed list heads */
/* Protocol, addresses and port numbers */
@@ -561,17 +536,18 @@ struct ip_vs_conn {
struct ip_vs_dest *dest; /* real server */
atomic_t in_pkts; /* incoming packet counter */
- /* packet transmitter for different forwarding methods. If it
- mangles the packet, it must return NF_DROP or better NF_STOLEN,
- otherwise this must be changed to a sk_buff **.
- NF_ACCEPT can be returned when destination is local.
+ /* Packet transmitter for different forwarding methods. If it
+ * mangles the packet, it must return NF_DROP or better NF_STOLEN,
+ * otherwise this must be changed to a sk_buff **.
+ * NF_ACCEPT can be returned when destination is local.
*/
int (*packet_xmit)(struct sk_buff *skb, struct ip_vs_conn *cp,
struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
/* Note: we can group the following members into a structure,
- in order to save more space, and the following members are
- only used in VS/NAT anyway */
+ * in order to save more space, and the following members are
+ * only used in VS/NAT anyway
+ */
struct ip_vs_app *app; /* bound ip_vs_app object */
void *app_data; /* Application private data */
struct ip_vs_seq in_seq; /* incoming seq. struct */
@@ -584,9 +560,7 @@ struct ip_vs_conn {
struct rcu_head rcu_head;
};
-/*
- * To save some memory in conn table when name space is disabled.
- */
+/* To save some memory in conn table when name space is disabled. */
static inline struct net *ip_vs_conn_net(const struct ip_vs_conn *cp)
{
#ifdef CONFIG_NET_NS
@@ -595,6 +569,7 @@ static inline struct net *ip_vs_conn_net(const struct ip_vs_conn *cp)
return &init_net;
#endif
}
+
static inline void ip_vs_conn_net_set(struct ip_vs_conn *cp, struct net *net)
{
#ifdef CONFIG_NET_NS
@@ -612,13 +587,12 @@ static inline int ip_vs_conn_net_eq(const struct ip_vs_conn *cp,
#endif
}
-/*
- * Extended internal versions of struct ip_vs_service_user and
- * ip_vs_dest_user for IPv6 support.
+/* Extended internal versions of struct ip_vs_service_user and ip_vs_dest_user
+ * for IPv6 support.
*
- * We need these to conveniently pass around service and destination
- * options, but unfortunately, we also need to keep the old definitions to
- * maintain userspace backwards compatibility for the setsockopt interface.
+ * We need these to conveniently pass around service and destination
+ * options, but unfortunately, we also need to keep the old definitions to
+ * maintain userspace backwards compatibility for the setsockopt interface.
*/
struct ip_vs_service_user_kern {
/* virtual service addresses */
@@ -656,8 +630,8 @@ struct ip_vs_dest_user_kern {
/*
- * The information about the virtual service offered to the net
- * and the forwarding entries
+ * The information about the virtual service offered to the net and the
+ * forwarding entries.
*/
struct ip_vs_service {
struct hlist_node s_list; /* for normal service table */
@@ -697,9 +671,8 @@ struct ip_vs_dest_dst {
struct rcu_head rcu_head;
};
-/*
- * The real server destination forwarding entry
- * with ip address, port number, and so on.
+/* The real server destination forwarding entry with ip address, port number,
+ * and so on.
*/
struct ip_vs_dest {
struct list_head n_list; /* for the dests in the service */
@@ -738,10 +711,7 @@ struct ip_vs_dest {
unsigned int in_rs_table:1; /* we are in rs_table */
};
-
-/*
- * The scheduler object
- */
+/* The scheduler object */
struct ip_vs_scheduler {
struct list_head n_list; /* d-linked list head */
char *name; /* scheduler name */
@@ -781,9 +751,7 @@ struct ip_vs_pe {
int (*show_pe_data)(const struct ip_vs_conn *cp, char *buf);
};
-/*
- * The application module object (a.k.a. app incarnation)
- */
+/* The application module object (a.k.a. app incarnation) */
struct ip_vs_app {
struct list_head a_list; /* member in app list */
int type; /* IP_VS_APP_TYPE_xxx */
@@ -799,16 +767,14 @@ struct ip_vs_app {
atomic_t usecnt; /* usage counter */
struct rcu_head rcu_head;
- /*
- * output hook: Process packet in inout direction, diff set for TCP.
+ /* output hook: Process packet in inout direction, diff set for TCP.
* Return: 0=Error, 1=Payload Not Mangled/Mangled but checksum is ok,
* 2=Mangled but checksum was not updated
*/
int (*pkt_out)(struct ip_vs_app *, struct ip_vs_conn *,
struct sk_buff *, int *diff);
- /*
- * input hook: Process packet in outin direction, diff set for TCP.
+ /* input hook: Process packet in outin direction, diff set for TCP.
* Return: 0=Error, 1=Payload Not Mangled/Mangled but checksum is ok,
* 2=Mangled but checksum was not updated
*/
@@ -867,9 +833,7 @@ struct ipvs_master_sync_state {
struct netns_ipvs {
int gen; /* Generation */
int enable; /* enable like nf_hooks do */
- /*
- * Hash table: for real service lookups
- */
+ /* Hash table: for real service lookups */
#define IP_VS_RTAB_BITS 4
#define IP_VS_RTAB_SIZE (1 << IP_VS_RTAB_BITS)
#define IP_VS_RTAB_MASK (IP_VS_RTAB_SIZE - 1)
@@ -903,7 +867,7 @@ struct netns_ipvs {
struct list_head sctp_apps[SCTP_APP_TAB_SIZE];
#endif
/* ip_vs_conn */
- atomic_t conn_count; /* connection counter */
+ atomic_t conn_count; /* connection counter */
/* ip_vs_ctl */
struct ip_vs_stats tot_stats; /* Statistics & est. */
@@ -990,9 +954,9 @@ struct netns_ipvs {
char backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
/* net name space ptr */
struct net *net; /* Needed by timer routines */
- /* Number of heterogeneous destinations, needed because
- * heterogeneous are not supported when synchronization is
- * enabled */
+ /* Number of heterogeneous destinations, needed becaus heterogeneous
+ * are not supported when synchronization is enabled.
+ */
unsigned int mixed_address_family_dests;
};
@@ -1147,9 +1111,8 @@ static inline int sysctl_backup_only(struct netns_ipvs *ipvs)
#endif
-/*
- * IPVS core functions
- * (from ip_vs_core.c)
+/* IPVS core functions
+ * (from ip_vs_core.c)
*/
const char *ip_vs_proto_name(unsigned int proto);
void ip_vs_init_hash_table(struct list_head *table, int rows);
@@ -1157,11 +1120,9 @@ void ip_vs_init_hash_table(struct list_head *table, int rows);
#define IP_VS_APP_TYPE_FTP 1
-/*
- * ip_vs_conn handling functions
- * (from ip_vs_conn.c)
+/* ip_vs_conn handling functions
+ * (from ip_vs_conn.c)
*/
-
enum {
IP_VS_DIR_INPUT = 0,
IP_VS_DIR_OUTPUT,
@@ -1292,9 +1253,7 @@ ip_vs_control_add(struct ip_vs_conn *cp, struct ip_vs_conn *ctl_cp)
atomic_inc(&ctl_cp->n_control);
}
-/*
- * IPVS netns init & cleanup functions
- */
+/* IPVS netns init & cleanup functions */
int ip_vs_estimator_net_init(struct net *net);
int ip_vs_control_net_init(struct net *net);
int ip_vs_protocol_net_init(struct net *net);
@@ -1309,9 +1268,8 @@ void ip_vs_estimator_net_cleanup(struct net *net);
void ip_vs_sync_net_cleanup(struct net *net);
void ip_vs_service_net_cleanup(struct net *net);
-/*
- * IPVS application functions
- * (from ip_vs_app.c)
+/* IPVS application functions
+ * (from ip_vs_app.c)
*/
#define IP_VS_APP_MAX_PORTS 8
struct ip_vs_app *register_ip_vs_app(struct net *net, struct ip_vs_app *app);
@@ -1331,9 +1289,7 @@ int unregister_ip_vs_pe(struct ip_vs_pe *pe);
struct ip_vs_pe *ip_vs_pe_getbyname(const char *name);
struct ip_vs_pe *__ip_vs_pe_getbyname(const char *pe_name);
-/*
- * Use a #define to avoid all of module.h just for these trivial ops
- */
+/* Use a #define to avoid all of module.h just for these trivial ops */
#define ip_vs_pe_get(pe) \
if (pe && pe->module) \
__module_get(pe->module);
@@ -1342,9 +1298,7 @@ struct ip_vs_pe *__ip_vs_pe_getbyname(const char *pe_name);
if (pe && pe->module) \
module_put(pe->module);
-/*
- * IPVS protocol functions (from ip_vs_proto.c)
- */
+/* IPVS protocol functions (from ip_vs_proto.c) */
int ip_vs_protocol_init(void);
void ip_vs_protocol_cleanup(void);
void ip_vs_protocol_timeout_change(struct netns_ipvs *ipvs, int flags);
@@ -1362,9 +1316,8 @@ extern struct ip_vs_protocol ip_vs_protocol_esp;
extern struct ip_vs_protocol ip_vs_protocol_ah;
extern struct ip_vs_protocol ip_vs_protocol_sctp;
-/*
- * Registering/unregistering scheduler functions
- * (from ip_vs_sched.c)
+/* Registering/unregistering scheduler functions
+ * (from ip_vs_sched.c)
*/
int register_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
int unregister_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
@@ -1383,10 +1336,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
void ip_vs_scheduler_err(struct ip_vs_service *svc, const char *msg);
-
-/*
- * IPVS control data and functions (from ip_vs_ctl.c)
- */
+/* IPVS control data and functions (from ip_vs_ctl.c) */
extern struct ip_vs_stats ip_vs_stats;
extern int sysctl_ip_vs_sync_ver;
@@ -1427,26 +1377,21 @@ static inline void ip_vs_dest_put_and_free(struct ip_vs_dest *dest)
kfree(dest);
}
-/*
- * IPVS sync daemon data and function prototypes
- * (from ip_vs_sync.c)
+/* IPVS sync daemon data and function prototypes
+ * (from ip_vs_sync.c)
*/
int start_sync_thread(struct net *net, int state, char *mcast_ifn, __u8 syncid);
int stop_sync_thread(struct net *net, int state);
void ip_vs_sync_conn(struct net *net, struct ip_vs_conn *cp, int pkts);
-/*
- * IPVS rate estimator prototypes (from ip_vs_est.c)
- */
+/* IPVS rate estimator prototypes (from ip_vs_est.c) */
void ip_vs_start_estimator(struct net *net, struct ip_vs_stats *stats);
void ip_vs_stop_estimator(struct net *net, struct ip_vs_stats *stats);
void ip_vs_zero_estimator(struct ip_vs_stats *stats);
void ip_vs_read_estimator(struct ip_vs_stats_user *dst,
struct ip_vs_stats *stats);
-/*
- * Various IPVS packet transmitters (from ip_vs_xmit.c)
- */
+/* Various IPVS packet transmitters (from ip_vs_xmit.c) */
int ip_vs_null_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
int ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
@@ -1477,12 +1422,10 @@ int ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
#endif
#ifdef CONFIG_SYSCTL
-/*
- * This is a simple mechanism to ignore packets when
- * we are loaded. Just set ip_vs_drop_rate to 'n' and
- * we start to drop 1/rate of the packets
+/* This is a simple mechanism to ignore packets when
+ * we are loaded. Just set ip_vs_drop_rate to 'n' and
+ * we start to drop 1/rate of the packets
*/
-
static inline int ip_vs_todrop(struct netns_ipvs *ipvs)
{
if (!ipvs->drop_rate)
@@ -1496,9 +1439,7 @@ static inline int ip_vs_todrop(struct netns_ipvs *ipvs)
static inline int ip_vs_todrop(struct netns_ipvs *ipvs) { return 0; }
#endif
-/*
- * ip_vs_fwd_tag returns the forwarding tag of the connection
- */
+/* ip_vs_fwd_tag returns the forwarding tag of the connection */
#define IP_VS_FWD_METHOD(cp) (cp->flags & IP_VS_CONN_F_FWD_MASK)
static inline char ip_vs_fwd_tag(struct ip_vs_conn *cp)
@@ -1557,9 +1498,7 @@ static inline __wsum ip_vs_check_diff2(__be16 old, __be16 new, __wsum oldsum)
return csum_partial(diff, sizeof(diff), oldsum);
}
-/*
- * Forget current conntrack (unconfirmed) and attach notrack entry
- */
+/* Forget current conntrack (unconfirmed) and attach notrack entry */
static inline void ip_vs_notrack(struct sk_buff *skb)
{
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
@@ -1576,9 +1515,8 @@ static inline void ip_vs_notrack(struct sk_buff *skb)
}
#ifdef CONFIG_IP_VS_NFCT
-/*
- * Netfilter connection tracking
- * (from ip_vs_nfct.c)
+/* Netfilter connection tracking
+ * (from ip_vs_nfct.c)
*/
static inline int ip_vs_conntrack_enabled(struct netns_ipvs *ipvs)
{
@@ -1617,14 +1555,12 @@ static inline int ip_vs_confirm_conntrack(struct sk_buff *skb)
static inline void ip_vs_conn_drop_conntrack(struct ip_vs_conn *cp)
{
}
-/* CONFIG_IP_VS_NFCT */
-#endif
+#endif /* CONFIG_IP_VS_NFCT */
static inline int
ip_vs_dest_conn_overhead(struct ip_vs_dest *dest)
{
- /*
- * We think the overhead of processing active connections is 256
+ /* We think the overhead of processing active connections is 256
* times higher than that of inactive connections in average. (This
* 256 times might not be accurate, we will change it later) We
* use the following formula to estimate the overhead now:
--
cgit v1.2.1
From 5dc0158a27f65e7efaa6e3cc496d93b4c4c65d19 Mon Sep 17 00:00:00 2001
From: "Subhransu S. Prusty" <subhransu.s.prusty@intel.com>
Date: Fri, 19 Sep 2014 16:46:05 +0530
Subject: ASoC: Export dapm_kcontrol_get_value
The DSP driver needs to know widget control value in its event handler for
widgets like mixers. This is required in the subsequent patches
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dapm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index aac04ff84eea..6ae0a1952ad7 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -432,6 +432,7 @@ int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm,
int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
const char *pin);
void snd_soc_dapm_auto_nc_pins(struct snd_soc_card *card);
+unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol);
/* Mostly internal - should not normally be used */
void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm);
--
cgit v1.2.1
From dba4b74d2da8798626e2b702ad3f452671e335f7 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Wed, 1 Oct 2014 15:05:25 +0300
Subject: wil6210: atomic I/O for the card memory
Introduce netdev IOCTLs, to be used by the debug tools.
Allows to read/write single dword value or
memory block, aligned to dword
Different address modes supported:
- BAR offset
- Firmware "linker" address
- target's AHB bus
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/uapi/linux/wil6210_uapi.h | 87 +++++++++++++++++++++++++++++++++++++++
1 file changed, 87 insertions(+)
create mode 100644 include/uapi/linux/wil6210_uapi.h
(limited to 'include')
diff --git a/include/uapi/linux/wil6210_uapi.h b/include/uapi/linux/wil6210_uapi.h
new file mode 100644
index 000000000000..6a3cddd156c4
--- /dev/null
+++ b/include/uapi/linux/wil6210_uapi.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2014 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __WIL6210_UAPI_H__
+#define __WIL6210_UAPI_H__
+
+#if !defined(__KERNEL__)
+#define __user
+#endif
+
+#include <linux/sockios.h>
+
+/* Numbers SIOCDEVPRIVATE and SIOCDEVPRIVATE + 1
+ * are used by Android devices to implement PNO (preferred network offload).
+ * Albeit it is temporary solution, use different numbers to avoid conflicts
+ */
+
+/**
+ * Perform 32-bit I/O operation to the card memory
+ *
+ * User code should arrange data in memory like this:
+ *
+ * struct wil_memio io;
+ * struct ifreq ifr = {
+ * .ifr_data = &io,
+ * };
+ */
+#define WIL_IOCTL_MEMIO (SIOCDEVPRIVATE + 2)
+
+/**
+ * Perform block I/O operation to the card memory
+ *
+ * User code should arrange data in memory like this:
+ *
+ * void *buf;
+ * struct wil_memio_block io = {
+ * .block = buf,
+ * };
+ * struct ifreq ifr = {
+ * .ifr_data = &io,
+ * };
+ */
+#define WIL_IOCTL_MEMIO_BLOCK (SIOCDEVPRIVATE + 3)
+
+/**
+ * operation to perform
+ *
+ * @wil_mmio_op_mask - bits defining operation,
+ * @wil_mmio_addr_mask - bits defining addressing mode
+ */
+enum wil_memio_op {
+ wil_mmio_read = 0,
+ wil_mmio_write = 1,
+ wil_mmio_op_mask = 0xff,
+ wil_mmio_addr_linker = 0 << 8,
+ wil_mmio_addr_ahb = 1 << 8,
+ wil_mmio_addr_bar = 2 << 8,
+ wil_mmio_addr_mask = 0xff00,
+};
+
+struct wil_memio {
+ uint32_t op; /* enum wil_memio_op */
+ uint32_t addr; /* should be 32-bit aligned */
+ uint32_t val;
+};
+
+struct wil_memio_block {
+ uint32_t op; /* enum wil_memio_op */
+ uint32_t addr; /* should be 32-bit aligned */
+ uint32_t size; /* should be multiple of 4 */
+ void __user *block; /* block address */
+};
+
+#endif /* __WIL6210_UAPI_H__ */
--
cgit v1.2.1
From 562c85cadb065e33ec9f651b8d41cdfd3054a5d0 Mon Sep 17 00:00:00 2001
From: Yalin Wang <Yalin.Wang@sonymobile.com>
Date: Fri, 26 Sep 2014 03:30:59 +0100
Subject: ARM: 8168/1: extend __init_end to a page align address
This patch changes the __init_end address to a
page align address, so that free_initmem() can
free the whole .init section, because if the end
address is not page aligned, it will round down to
a page align address, then the tail unligned page
will not be freed.
Signed-off-by: wang <yalin.wang2010@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
include/asm-generic/vmlinux.lds.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 5ba0360663a7..aa70cbda327c 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -40,6 +40,8 @@
* }
*
* [__init_begin, __init_end] is the init section that may be freed after init
+ * // __init_begin and __init_end should be page aligned, so that we can
+ * // free the whole .init memory
* [_stext, _etext] is the text section
* [_sdata, _edata] is the data section
*
--
cgit v1.2.1
From 347abad981c1ef815ea5ba861adba6a8c6aa1580 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Tue, 30 Sep 2014 15:59:47 -0400
Subject: sched, time: Fix build error with 64 bit cputime_t on 32 bit systems
On 32 bit systems cmpxchg cannot handle 64 bit values, so
some additional magic is required to allow a 32 bit system
with CONFIG_VIRT_CPU_ACCOUNTING_GEN=y enabled to build.
Make sure the correct cmpxchg function is used when doing
an atomic swap of a cputime_t.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rik van Riel <riel@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: umgwanakikbuti@gmail.com
Cc: fweisbec@gmail.com
Cc: srao@redhat.com
Cc: lwoodman@redhat.com
Cc: atheurer@redhat.com
Cc: oleg@redhat.com
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linux390@de.ibm.com
Cc: linux-arch@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Link: http://lkml.kernel.org/r/20140930155947.070cdb1f@annuminas.surriel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/asm-generic/cputime_jiffies.h | 2 ++
include/asm-generic/cputime_nsecs.h | 2 ++
2 files changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/cputime_jiffies.h b/include/asm-generic/cputime_jiffies.h
index d5cb78f53986..fe386fc6e85e 100644
--- a/include/asm-generic/cputime_jiffies.h
+++ b/include/asm-generic/cputime_jiffies.h
@@ -3,6 +3,8 @@
typedef unsigned long __nocast cputime_t;
+#define cmpxchg_cputime(ptr, old, new) cmpxchg(ptr, old, new)
+
#define cputime_one_jiffy jiffies_to_cputime(1)
#define cputime_to_jiffies(__ct) (__force unsigned long)(__ct)
#define cputime_to_scaled(__ct) (__ct)
diff --git a/include/asm-generic/cputime_nsecs.h b/include/asm-generic/cputime_nsecs.h
index 4e817606c549..0419485891f2 100644
--- a/include/asm-generic/cputime_nsecs.h
+++ b/include/asm-generic/cputime_nsecs.h
@@ -21,6 +21,8 @@
typedef u64 __nocast cputime_t;
typedef u64 __nocast cputime64_t;
+#define cmpxchg_cputime(ptr, old, new) cmpxchg64(ptr, old, new)
+
#define cputime_one_jiffy jiffies_to_cputime(1)
#define cputime_div(__ct, divisor) div_u64((__force u64)__ct, divisor)
--
cgit v1.2.1
From 2291059c852706c6f5ffb400366042b7625066cd Mon Sep 17 00:00:00 2001
From: Pranith Kumar <bobby.prani@gmail.com>
Date: Tue, 23 Sep 2014 10:29:50 -0400
Subject: locking,arch: Use ACCESS_ONCE() instead of cast to volatile in
atomic_read()
Use the much more reader friendly ACCESS_ONCE() instead of the cast to volatile.
This is purely a stylistic change.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-arch@vger.kernel.org
Link: http://lkml.kernel.org/r/1411482607-20948-1-git-send-email-bobby.prani@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/asm-generic/atomic.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index 56d4d36e1531..1973ad2b13f4 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -126,7 +126,7 @@ ATOMIC_OP(or, |)
* Atomically reads the value of @v.
*/
#ifndef atomic_read
-#define atomic_read(v) (*(volatile int *)&(v)->counter)
+#define atomic_read(v) ACCESS_ONCE((v)->counter)
#endif
/**
--
cgit v1.2.1
From 8acd91e8620836a56ff62028ed28ba629f2881a0 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 30 Sep 2014 15:26:00 +0200
Subject: locking/lockdep: Revert qrwlock recusive stuff
Commit f0bab73cb539 ("locking/lockdep: Restrict the use of recursive
read_lock() with qrwlock") changed lockdep to try and conform to the
qrwlock semantics which differ from the traditional rwlock semantics.
In particular qrwlock is fair outside of interrupt context, but in
interrupt context readers will ignore all fairness.
The problem modeling this is that read and write side have different
lock state (interrupts) semantics but we only have a single
representation of these. Therefore lockdep will get confused, thinking
the lock can cause interrupt lock inversions.
So revert it for now; the old rwlock semantics were already imperfectly
modeled and the qrwlock extra won't fit either.
If we want to properly fix this, I think we need to resurrect the work
by Gautham did a few years ago that split the read and write state of
locks:
http://lwn.net/Articles/332801/
FWIW the locking selftest that would've failed (and was reported by
Borislav earlier) is something like:
RL(X1); /* IRQ-ON */
LOCK(A);
UNLOCK(A);
RU(X1);
IRQ_ENTER();
RL(X1); /* IN-IRQ */
RU(X1);
IRQ_EXIT();
At which point it would report that because A is an IRQ-unsafe lock we
can suffer the following inversion:
CPU0 CPU1
lock(A)
lock(X1)
lock(A)
<IRQ>
lock(X1)
And this is 'wrong' because X1 can recurse (assuming the above lock are
in fact read-lock) but lockdep doesn't know about this.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Waiman Long <Waiman.Long@hp.com>
Cc: ego@linux.vnet.ibm.com
Cc: bp@alien8.de
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20140930132600.GA7444@worktop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/lockdep.h | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index b5a84b62fb84..f388481201cd 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -478,24 +478,16 @@ static inline void print_irqtrace_events(struct task_struct *curr)
* on the per lock-class debug mode:
*/
-/*
- * Read states in the 2-bit held_lock:read field:
- * 0: Exclusive lock
- * 1: Shareable lock, cannot be recursively called
- * 2: Shareable lock, can be recursively called
- * 3: Shareable lock, cannot be recursively called except in interrupt context
- */
#define lock_acquire_exclusive(l, s, t, n, i) lock_acquire(l, s, t, 0, 1, n, i)
#define lock_acquire_shared(l, s, t, n, i) lock_acquire(l, s, t, 1, 1, n, i)
#define lock_acquire_shared_recursive(l, s, t, n, i) lock_acquire(l, s, t, 2, 1, n, i)
-#define lock_acquire_shared_irecursive(l, s, t, n, i) lock_acquire(l, s, t, 3, 1, n, i)
#define spin_acquire(l, s, t, i) lock_acquire_exclusive(l, s, t, NULL, i)
#define spin_acquire_nest(l, s, t, n, i) lock_acquire_exclusive(l, s, t, n, i)
#define spin_release(l, n, i) lock_release(l, n, i)
#define rwlock_acquire(l, s, t, i) lock_acquire_exclusive(l, s, t, NULL, i)
-#define rwlock_acquire_read(l, s, t, i) lock_acquire_shared_irecursive(l, s, t, NULL, i)
+#define rwlock_acquire_read(l, s, t, i) lock_acquire_shared_recursive(l, s, t, NULL, i)
#define rwlock_release(l, n, i) lock_release(l, n, i)
#define seqcount_acquire(l, s, t, i) lock_acquire_exclusive(l, s, t, NULL, i)
--
cgit v1.2.1
From f14bb039a4e8206439d3e9abd92bc76bd142f243 Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Wed, 1 Oct 2014 16:07:03 -0700
Subject: uio: Export definition of struct uio_device
In order to prevent a O(n) search of the filesystem to link up its uio
node with its target configuration, TCMU needs to know the minor number
that UIO assigned. Expose the definition of this struct so TCMU can
access this field.
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/linux/uio_driver.h | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index 1ad4724458de..baa81718d985 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -63,7 +63,17 @@ struct uio_port {
#define MAX_UIO_PORT_REGIONS 5
-struct uio_device;
+struct uio_device {
+ struct module *owner;
+ struct device *dev;
+ int minor;
+ atomic_t event;
+ struct fasync_struct *async_queue;
+ wait_queue_head_t wait;
+ struct uio_info *info;
+ struct kobject *map_dir;
+ struct kobject *portio_dir;
+};
/**
* struct uio_info - UIO device capabilities
--
cgit v1.2.1
From bca9b6855888d978d6e5399b0a8a8ed9a11e9236 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Wed, 17 Sep 2014 06:12:35 +0200
Subject: xen: sync some headers with xen tree
To be able to use an initially unmapped initrd with xen the following
header files must be synced to a newer version from the xen tree:
include/xen/interface/elfnote.h
include/xen/interface/xen.h
As the KEXEC and DUMPCORE related ELFNOTES are not relevant for the
kernel they are omitted from elfnote.h.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
include/xen/interface/elfnote.h | 48 ++++++-
include/xen/interface/xen.h | 272 ++++++++++++++++++++++++++++++++++++----
2 files changed, 294 insertions(+), 26 deletions(-)
(limited to 'include')
diff --git a/include/xen/interface/elfnote.h b/include/xen/interface/elfnote.h
index 6f4eae328ca7..f90b03454659 100644
--- a/include/xen/interface/elfnote.h
+++ b/include/xen/interface/elfnote.h
@@ -3,6 +3,24 @@
*
* Definitions used for the Xen ELF notes.
*
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
* Copyright (c) 2006, Ian Campbell, XenSource Ltd.
*/
@@ -18,12 +36,13 @@
*
* LEGACY indicated the fields in the legacy __xen_guest string which
* this a note type replaces.
+ *
+ * String values (for non-legacy) are NULL terminated ASCII, also known
+ * as ASCIZ type.
*/
/*
* NAME=VALUE pair (string).
- *
- * LEGACY: FEATURES and PAE
*/
#define XEN_ELFNOTE_INFO 0
@@ -137,9 +156,29 @@
/*
* Whether or not the guest supports cooperative suspend cancellation.
+ * This is a numeric value.
+ *
+ * Default is 0
*/
#define XEN_ELFNOTE_SUSPEND_CANCEL 14
+/*
+ * The (non-default) location the initial phys-to-machine map should be
+ * placed at by the hypervisor (Dom0) or the tools (DomU).
+ * The kernel must be prepared for this mapping to be established using
+ * large pages, despite such otherwise not being available to guests.
+ * The kernel must also be able to handle the page table pages used for
+ * this mapping not being accessible through the initial mapping.
+ * (Only x86-64 supports this at present.)
+ */
+#define XEN_ELFNOTE_INIT_P2M 15
+
+/*
+ * Whether or not the guest can deal with being passed an initrd not
+ * mapped through its initial page tables.
+ */
+#define XEN_ELFNOTE_MOD_START_PFN 16
+
/*
* The features supported by this kernel (numeric).
*
@@ -153,6 +192,11 @@
*/
#define XEN_ELFNOTE_SUPPORTED_FEATURES 17
+/*
+ * The number of the highest elfnote defined.
+ */
+#define XEN_ELFNOTE_MAX XEN_ELFNOTE_SUPPORTED_FEATURES
+
#endif /* __XEN_PUBLIC_ELFNOTE_H__ */
/*
diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
index de082130ba4b..f68719f405af 100644
--- a/include/xen/interface/xen.h
+++ b/include/xen/interface/xen.h
@@ -3,6 +3,24 @@
*
* Guest OS interface to Xen.
*
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
* Copyright (c) 2004, K A Fraser
*/
@@ -73,13 +91,23 @@
* VIRTUAL INTERRUPTS
*
* Virtual interrupts that a guest OS may receive from Xen.
+ * In the side comments, 'V.' denotes a per-VCPU VIRQ while 'G.' denotes a
+ * global VIRQ. The former can be bound once per VCPU and cannot be re-bound.
+ * The latter can be allocated only once per guest: they must initially be
+ * allocated to VCPU0 but can subsequently be re-bound.
*/
-#define VIRQ_TIMER 0 /* Timebase update, and/or requested timeout. */
-#define VIRQ_DEBUG 1 /* Request guest to dump debug info. */
-#define VIRQ_CONSOLE 2 /* (DOM0) Bytes received on emergency console. */
-#define VIRQ_DOM_EXC 3 /* (DOM0) Exceptional event for some domain. */
-#define VIRQ_DEBUGGER 6 /* (DOM0) A domain has paused for debugging. */
-#define VIRQ_PCPU_STATE 9 /* (DOM0) PCPU state changed */
+#define VIRQ_TIMER 0 /* V. Timebase update, and/or requested timeout. */
+#define VIRQ_DEBUG 1 /* V. Request guest to dump debug info. */
+#define VIRQ_CONSOLE 2 /* G. (DOM0) Bytes received on emergency console. */
+#define VIRQ_DOM_EXC 3 /* G. (DOM0) Exceptional event for some domain. */
+#define VIRQ_TBUF 4 /* G. (DOM0) Trace buffer has records available. */
+#define VIRQ_DEBUGGER 6 /* G. (DOM0) A domain has paused for debugging. */
+#define VIRQ_XENOPROF 7 /* V. XenOprofile interrupt: new sample available */
+#define VIRQ_CON_RING 8 /* G. (DOM0) Bytes received on console */
+#define VIRQ_PCPU_STATE 9 /* G. (DOM0) PCPU state changed */
+#define VIRQ_MEM_EVENT 10 /* G. (DOM0) A memory event has occured */
+#define VIRQ_XC_RESERVED 11 /* G. Reserved for XenClient */
+#define VIRQ_ENOMEM 12 /* G. (DOM0) Low on heap memory */
/* Architecture-specific VIRQ definitions. */
#define VIRQ_ARCH_0 16
@@ -92,24 +120,68 @@
#define VIRQ_ARCH_7 23
#define NR_VIRQS 24
+
/*
- * MMU-UPDATE REQUESTS
- *
- * HYPERVISOR_mmu_update() accepts a list of (ptr, val) pairs.
- * A foreigndom (FD) can be specified (or DOMID_SELF for none).
- * Where the FD has some effect, it is described below.
- * ptr[1:0] specifies the appropriate MMU_* command.
+ * enum neg_errnoval HYPERVISOR_mmu_update(const struct mmu_update reqs[],
+ * unsigned count, unsigned *done_out,
+ * unsigned foreigndom)
+ * @reqs is an array of mmu_update_t structures ((ptr, val) pairs).
+ * @count is the length of the above array.
+ * @pdone is an output parameter indicating number of completed operations
+ * @foreigndom[15:0]: FD, the expected owner of data pages referenced in this
+ * hypercall invocation. Can be DOMID_SELF.
+ * @foreigndom[31:16]: PFD, the expected owner of pagetable pages referenced
+ * in this hypercall invocation. The value of this field
+ * (x) encodes the PFD as follows:
+ * x == 0 => PFD == DOMID_SELF
+ * x != 0 => PFD == x - 1
*
+ * Sub-commands: ptr[1:0] specifies the appropriate MMU_* command.
+ * -------------
* ptr[1:0] == MMU_NORMAL_PT_UPDATE:
- * Updates an entry in a page table. If updating an L1 table, and the new
- * table entry is valid/present, the mapped frame must belong to the FD, if
- * an FD has been specified. If attempting to map an I/O page then the
- * caller assumes the privilege of the FD.
+ * Updates an entry in a page table belonging to PFD. If updating an L1 table,
+ * and the new table entry is valid/present, the mapped frame must belong to
+ * FD. If attempting to map an I/O page then the caller assumes the privilege
+ * of the FD.
* FD == DOMID_IO: Permit /only/ I/O mappings, at the priv level of the caller.
* FD == DOMID_XEN: Map restricted areas of Xen's heap space.
* ptr[:2] -- Machine address of the page-table entry to modify.
* val -- Value to write.
*
+ * There also certain implicit requirements when using this hypercall. The
+ * pages that make up a pagetable must be mapped read-only in the guest.
+ * This prevents uncontrolled guest updates to the pagetable. Xen strictly
+ * enforces this, and will disallow any pagetable update which will end up
+ * mapping pagetable page RW, and will disallow using any writable page as a
+ * pagetable. In practice it means that when constructing a page table for a
+ * process, thread, etc, we MUST be very dilligient in following these rules:
+ * 1). Start with top-level page (PGD or in Xen language: L4). Fill out
+ * the entries.
+ * 2). Keep on going, filling out the upper (PUD or L3), and middle (PMD
+ * or L2).
+ * 3). Start filling out the PTE table (L1) with the PTE entries. Once
+ * done, make sure to set each of those entries to RO (so writeable bit
+ * is unset). Once that has been completed, set the PMD (L2) for this
+ * PTE table as RO.
+ * 4). When completed with all of the PMD (L2) entries, and all of them have
+ * been set to RO, make sure to set RO the PUD (L3). Do the same
+ * operation on PGD (L4) pagetable entries that have a PUD (L3) entry.
+ * 5). Now before you can use those pages (so setting the cr3), you MUST also
+ * pin them so that the hypervisor can verify the entries. This is done
+ * via the HYPERVISOR_mmuext_op(MMUEXT_PIN_L4_TABLE, guest physical frame
+ * number of the PGD (L4)). And this point the HYPERVISOR_mmuext_op(
+ * MMUEXT_NEW_BASEPTR, guest physical frame number of the PGD (L4)) can be
+ * issued.
+ * For 32-bit guests, the L4 is not used (as there is less pagetables), so
+ * instead use L3.
+ * At this point the pagetables can be modified using the MMU_NORMAL_PT_UPDATE
+ * hypercall. Also if so desired the OS can also try to write to the PTE
+ * and be trapped by the hypervisor (as the PTE entry is RO).
+ *
+ * To deallocate the pages, the operations are the reverse of the steps
+ * mentioned above. The argument is MMUEXT_UNPIN_TABLE for all levels and the
+ * pagetable MUST not be in use (meaning that the cr3 is not set to it).
+ *
* ptr[1:0] == MMU_MACHPHYS_UPDATE:
* Updates an entry in the machine->pseudo-physical mapping table.
* ptr[:2] -- Machine address within the frame whose mapping to modify.
@@ -119,6 +191,72 @@
* ptr[1:0] == MMU_PT_UPDATE_PRESERVE_AD:
* As MMU_NORMAL_PT_UPDATE above, but A/D bits currently in the PTE are ORed
* with those in @val.
+ *
+ * @val is usually the machine frame number along with some attributes.
+ * The attributes by default follow the architecture defined bits. Meaning that
+ * if this is a X86_64 machine and four page table layout is used, the layout
+ * of val is:
+ * - 63 if set means No execute (NX)
+ * - 46-13 the machine frame number
+ * - 12 available for guest
+ * - 11 available for guest
+ * - 10 available for guest
+ * - 9 available for guest
+ * - 8 global
+ * - 7 PAT (PSE is disabled, must use hypercall to make 4MB or 2MB pages)
+ * - 6 dirty
+ * - 5 accessed
+ * - 4 page cached disabled
+ * - 3 page write through
+ * - 2 userspace accessible
+ * - 1 writeable
+ * - 0 present
+ *
+ * The one bits that does not fit with the default layout is the PAGE_PSE
+ * also called PAGE_PAT). The MMUEXT_[UN]MARK_SUPER arguments to the
+ * HYPERVISOR_mmuext_op serve as mechanism to set a pagetable to be 4MB
+ * (or 2MB) instead of using the PAGE_PSE bit.
+ *
+ * The reason that the PAGE_PSE (bit 7) is not being utilized is due to Xen
+ * using it as the Page Attribute Table (PAT) bit - for details on it please
+ * refer to Intel SDM 10.12. The PAT allows to set the caching attributes of
+ * pages instead of using MTRRs.
+ *
+ * The PAT MSR is as follows (it is a 64-bit value, each entry is 8 bits):
+ * PAT4 PAT0
+ * +-----+-----+----+----+----+-----+----+----+
+ * | UC | UC- | WC | WB | UC | UC- | WC | WB | <= Linux
+ * +-----+-----+----+----+----+-----+----+----+
+ * | UC | UC- | WT | WB | UC | UC- | WT | WB | <= BIOS (default when machine boots)
+ * +-----+-----+----+----+----+-----+----+----+
+ * | rsv | rsv | WP | WC | UC | UC- | WT | WB | <= Xen
+ * +-----+-----+----+----+----+-----+----+----+
+ *
+ * The lookup of this index table translates to looking up
+ * Bit 7, Bit 4, and Bit 3 of val entry:
+ *
+ * PAT/PSE (bit 7) ... PCD (bit 4) .. PWT (bit 3).
+ *
+ * If all bits are off, then we are using PAT0. If bit 3 turned on,
+ * then we are using PAT1, if bit 3 and bit 4, then PAT2..
+ *
+ * As you can see, the Linux PAT1 translates to PAT4 under Xen. Which means
+ * that if a guest that follows Linux's PAT setup and would like to set Write
+ * Combined on pages it MUST use PAT4 entry. Meaning that Bit 7 (PAGE_PAT) is
+ * set. For example, under Linux it only uses PAT0, PAT1, and PAT2 for the
+ * caching as:
+ *
+ * WB = none (so PAT0)
+ * WC = PWT (bit 3 on)
+ * UC = PWT | PCD (bit 3 and 4 are on).
+ *
+ * To make it work with Xen, it needs to translate the WC bit as so:
+ *
+ * PWT (so bit 3 on) --> PAT (so bit 7 is on) and clear bit 3
+ *
+ * And to translate back it would:
+ *
+ * PAT (bit 7 on) --> PWT (bit 3 on) and clear bit 7.
*/
#define MMU_NORMAL_PT_UPDATE 0 /* checked '*ptr = val'. ptr is MA. */
#define MMU_MACHPHYS_UPDATE 1 /* ptr = MA of frame to modify entry for */
@@ -127,7 +265,12 @@
/*
* MMU EXTENDED OPERATIONS
*
- * HYPERVISOR_mmuext_op() accepts a list of mmuext_op structures.
+ * enum neg_errnoval HYPERVISOR_mmuext_op(mmuext_op_t uops[],
+ * unsigned int count,
+ * unsigned int *pdone,
+ * unsigned int foreigndom)
+ */
+/* HYPERVISOR_mmuext_op() accepts a list of mmuext_op structures.
* A foreigndom (FD) can be specified (or DOMID_SELF for none).
* Where the FD has some effect, it is described below.
*
@@ -164,9 +307,23 @@
* cmd: MMUEXT_FLUSH_CACHE
* No additional arguments. Writes back and flushes cache contents.
*
+ * cmd: MMUEXT_FLUSH_CACHE_GLOBAL
+ * No additional arguments. Writes back and flushes cache contents
+ * on all CPUs in the system.
+ *
* cmd: MMUEXT_SET_LDT
* linear_addr: Linear address of LDT base (NB. must be page-aligned).
* nr_ents: Number of entries in LDT.
+ *
+ * cmd: MMUEXT_CLEAR_PAGE
+ * mfn: Machine frame number to be cleared.
+ *
+ * cmd: MMUEXT_COPY_PAGE
+ * mfn: Machine frame number of the destination page.
+ * src_mfn: Machine frame number of the source page.
+ *
+ * cmd: MMUEXT_[UN]MARK_SUPER
+ * mfn: Machine frame number of head of superpage to be [un]marked.
*/
#define MMUEXT_PIN_L1_TABLE 0
#define MMUEXT_PIN_L2_TABLE 1
@@ -183,12 +340,18 @@
#define MMUEXT_FLUSH_CACHE 12
#define MMUEXT_SET_LDT 13
#define MMUEXT_NEW_USER_BASEPTR 15
+#define MMUEXT_CLEAR_PAGE 16
+#define MMUEXT_COPY_PAGE 17
+#define MMUEXT_FLUSH_CACHE_GLOBAL 18
+#define MMUEXT_MARK_SUPER 19
+#define MMUEXT_UNMARK_SUPER 20
#ifndef __ASSEMBLY__
struct mmuext_op {
unsigned int cmd;
union {
- /* [UN]PIN_TABLE, NEW_BASEPTR, NEW_USER_BASEPTR */
+ /* [UN]PIN_TABLE, NEW_BASEPTR, NEW_USER_BASEPTR
+ * CLEAR_PAGE, COPY_PAGE, [UN]MARK_SUPER */
xen_pfn_t mfn;
/* INVLPG_LOCAL, INVLPG_ALL, SET_LDT */
unsigned long linear_addr;
@@ -198,6 +361,8 @@ struct mmuext_op {
unsigned int nr_ents;
/* TLB_FLUSH_MULTI, INVLPG_MULTI */
void *vcpumask;
+ /* COPY_PAGE */
+ xen_pfn_t src_mfn;
} arg2;
};
DEFINE_GUEST_HANDLE_STRUCT(mmuext_op);
@@ -225,10 +390,23 @@ DEFINE_GUEST_HANDLE_STRUCT(mmuext_op);
*/
#define VMASST_CMD_enable 0
#define VMASST_CMD_disable 1
+
+/* x86/32 guests: simulate full 4GB segment limits. */
#define VMASST_TYPE_4gb_segments 0
+
+/* x86/32 guests: trap (vector 15) whenever above vmassist is used. */
#define VMASST_TYPE_4gb_segments_notify 1
+
+/*
+ * x86 guests: support writes to bottom-level PTEs.
+ * NB1. Page-directory entries cannot be written.
+ * NB2. Guest must continue to remove all writable mappings of PTEs.
+ */
#define VMASST_TYPE_writable_pagetables 2
+
+/* x86/PAE guests: support PDPTs above 4GB. */
#define VMASST_TYPE_pae_extended_cr3 3
+
#define MAX_VMASST_TYPE 3
#ifndef __ASSEMBLY__
@@ -260,6 +438,15 @@ typedef uint16_t domid_t;
*/
#define DOMID_XEN (0x7FF2U)
+/* DOMID_COW is used as the owner of sharable pages */
+#define DOMID_COW (0x7FF3U)
+
+/* DOMID_INVALID is used to identify pages with unknown owner. */
+#define DOMID_INVALID (0x7FF4U)
+
+/* Idle domain. */
+#define DOMID_IDLE (0x7FFFU)
+
/*
* Send an array of these to HYPERVISOR_mmu_update().
* NB. The fields are natural pointer/address size for this architecture.
@@ -272,7 +459,9 @@ DEFINE_GUEST_HANDLE_STRUCT(mmu_update);
/*
* Send an array of these to HYPERVISOR_multicall().
- * NB. The fields are natural register size for this architecture.
+ * NB. The fields are logically the natural register size for this
+ * architecture. In cases where xen_ulong_t is larger than this then
+ * any unused bits in the upper portion must be zero.
*/
struct multicall_entry {
xen_ulong_t op;
@@ -442,8 +631,48 @@ struct start_info {
unsigned long mod_start; /* VIRTUAL address of pre-loaded module. */
unsigned long mod_len; /* Size (bytes) of pre-loaded module. */
int8_t cmd_line[MAX_GUEST_CMDLINE];
+ /* The pfn range here covers both page table and p->m table frames. */
+ unsigned long first_p2m_pfn;/* 1st pfn forming initial P->M table. */
+ unsigned long nr_p2m_frames;/* # of pfns forming initial P->M table. */
};
+/* These flags are passed in the 'flags' field of start_info_t. */
+#define SIF_PRIVILEGED (1<<0) /* Is the domain privileged? */
+#define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain? */
+#define SIF_MULTIBOOT_MOD (1<<2) /* Is mod_start a multiboot module? */
+#define SIF_MOD_START_PFN (1<<3) /* Is mod_start a PFN? */
+#define SIF_PM_MASK (0xFF<<8) /* reserve 1 byte for xen-pm options */
+
+/*
+ * A multiboot module is a package containing modules very similar to a
+ * multiboot module array. The only differences are:
+ * - the array of module descriptors is by convention simply at the beginning
+ * of the multiboot module,
+ * - addresses in the module descriptors are based on the beginning of the
+ * multiboot module,
+ * - the number of modules is determined by a termination descriptor that has
+ * mod_start == 0.
+ *
+ * This permits to both build it statically and reference it in a configuration
+ * file, and let the PV guest easily rebase the addresses to virtual addresses
+ * and at the same time count the number of modules.
+ */
+struct xen_multiboot_mod_list {
+ /* Address of first byte of the module */
+ uint32_t mod_start;
+ /* Address of last byte of the module (inclusive) */
+ uint32_t mod_end;
+ /* Address of zero-terminated command line */
+ uint32_t cmdline;
+ /* Unused, must be zero */
+ uint32_t pad;
+};
+/*
+ * The console structure in start_info.console.dom0
+ *
+ * This structure includes a variety of information required to
+ * have a working VGA/VESA console.
+ */
struct dom0_vga_console_info {
uint8_t video_type;
#define XEN_VGATYPE_TEXT_MODE_3 0x03
@@ -484,11 +713,6 @@ struct dom0_vga_console_info {
} u;
};
-/* These flags are passed in the 'flags' field of start_info_t. */
-#define SIF_PRIVILEGED (1<<0) /* Is the domain privileged? */
-#define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain? */
-#define SIF_PM_MASK (0xFF<<8) /* reserve 1 byte for xen-pm options */
-
typedef uint64_t cpumap_t;
typedef uint8_t xen_domain_handle_t[16];
--
cgit v1.2.1
From 615413979487a1e25a3b76abbaa316280ca19d26 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 24 Sep 2014 10:27:27 +0300
Subject: mmc: sdhci: Add quirk for always getting TC with stop cmd
Add a quirk for a host controller that always sets
a Transfer Complete interrupt status for the stop
command even when a busy response is not indicated.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdhci.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 0aa85ca0c788..dba793e3a331 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -98,6 +98,8 @@ struct sdhci_host {
#define SDHCI_QUIRK2_BROKEN_HS200 (1<<6)
/* Controller does not support DDR50 */
#define SDHCI_QUIRK2_BROKEN_DDR50 (1<<7)
+/* Stop command (CMD12) can set Transfer Complete when not using MMC_RSP_BUSY */
+#define SDHCI_QUIRK2_STOP_WITH_TC (1<<8)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
--
cgit v1.2.1
From f39cb1797ec1094b196d3dab44a7ca6060813d38 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 2 Oct 2014 21:12:34 +0200
Subject: PM / Domains: Rename cpu_data to cpuidle_data
The "cpu_data" are defined for some archs and thus conflicting with the
"cpu_data" member in the struct gpd_cpu_data. This causes a compiler
error for those archs.
Let's fix it by rename the member to cpuidle_data. In this context it
also seems appropriate to rename the struct to gpd_cpuidle_data to
better reflect its use.
Fixes: f48c767ce895 (PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h)
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 900474317afc..73e938b7e937 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -38,7 +38,7 @@ struct gpd_dev_ops {
bool (*active_wakeup)(struct device *dev);
};
-struct gpd_cpu_data {
+struct gpd_cpuidle_data {
unsigned int saved_exit_latency;
struct cpuidle_state *idle_state;
};
@@ -71,7 +71,7 @@ struct generic_pm_domain {
s64 max_off_time_ns; /* Maximum allowed "suspended" time. */
bool max_off_time_changed;
bool cached_power_down_ok;
- struct gpd_cpu_data *cpu_data;
+ struct gpd_cpuidle_data *cpuidle_data;
void (*attach_dev)(struct device *dev);
void (*detach_dev)(struct device *dev);
};
--
cgit v1.2.1
From 5a17dae422d7de4b776a9753cd4673a343a25b4b Mon Sep 17 00:00:00 2001
From: Matt Fleming <matt.fleming@intel.com>
Date: Tue, 5 Aug 2014 11:52:11 +0100
Subject: efi: Add efi= parameter parsing to the EFI boot stub
We need a way to customize the behaviour of the EFI boot stub, in
particular, we need a way to disable the "chunking" workaround, used
when reading files from the EFI System Partition.
One of my machines doesn't cope well when reading files in 1MB chunks to
a buffer above the 4GB mark - it appears that the "chunking" bug
workaround triggers another firmware bug. This was only discovered with
commit 4bf7111f5016 ("x86/efi: Support initrd loaded above 4G"), and
that commit is perfectly valid. The symptom I observed was a corrupt
initrd rather than any kind of crash.
efi= is now used to specify EFI parameters in two very different
execution environments, the EFI boot stub and during kernel boot.
There is also a slight performance optimization by enabling efi=nochunk,
but that's offset by the fact that you're more likely to run into
firmware issues, at least on x86. This is the rationale behind leaving
the workaround enabled by default.
Also provide some documentation for EFI_READ_CHUNK_SIZE and why we're
using the current value of 1MB.
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Roy Franz <roy.franz@linaro.org>
Cc: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
include/linux/efi.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 45cb4ffdea62..518779fb5e90 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1227,4 +1227,6 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
unsigned long *load_addr,
unsigned long *load_size);
+efi_status_t efi_parse_options(char *cmdline);
+
#endif /* _LINUX_EFI_H */
--
cgit v1.2.1
From b2e0a54a1296a91b800f316df7bef7d1905e4fd0 Mon Sep 17 00:00:00 2001
From: Dave Young <dyoung@redhat.com>
Date: Thu, 14 Aug 2014 17:15:26 +0800
Subject: efi: Move noefi early param code out of x86 arch code
noefi param can be used for arches other than X86 later, thus move it
out of x86 platform code.
Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
include/linux/efi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 518779fb5e90..4812ed0b0374 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1229,4 +1229,5 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
efi_status_t efi_parse_options(char *cmdline);
+bool efi_runtime_disabled(void);
#endif /* _LINUX_EFI_H */
--
cgit v1.2.1
From 6ccc72b87b83ece31c2a75bbe07f440b0378f7a9 Mon Sep 17 00:00:00 2001
From: Dave Young <dyoung@redhat.com>
Date: Thu, 14 Aug 2014 17:15:27 +0800
Subject: lib: Add a generic cmdline parse function parse_option_str
There should be a generic function to parse params like a=b,c
Adding parse_option_str in lib/cmdline.c which will return true
if there's specified option set in the params.
Also updated efi=old_map parsing code to use the new function
Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
include/linux/kernel.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 95624bed87ef..f66427ef0628 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -407,6 +407,7 @@ int vsscanf(const char *, const char *, va_list);
extern int get_option(char **str, int *pint);
extern char *get_options(const char *str, int nints, int *ints);
extern unsigned long long memparse(const char *ptr, char **retptr);
+extern bool parse_option_str(const char *str, const char *option);
extern int core_kernel_text(unsigned long addr);
extern int core_kernel_data(unsigned long addr);
--
cgit v1.2.1
From 9c97e0bdd4b4ae44577a1b1ec949e782084e9a78 Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Wed, 3 Sep 2014 13:32:19 +0200
Subject: efi: Add macro for EFI_MEMORY_UCE memory attribute
Add the following macro from the UEFI spec, for completeness:
EFI_MEMORY_UCE Memory cacheability attribute: The memory region
supports being configured as not cacheable, exported,
and supports the "fetch and add" semaphore mechanism.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
include/linux/efi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 4812ed0b0374..7464032ae00a 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -92,6 +92,7 @@ typedef struct {
#define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */
#define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */
#define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */
+#define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */
#define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */
#define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */
#define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */
--
cgit v1.2.1
From 98d2a6ca14520904a47c46258d3bad02ffcd3f96 Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Wed, 3 Sep 2014 13:32:20 +0200
Subject: efi: Introduce efi_md_typeattr_format()
At the moment, there are three architectures debug-printing the EFI memory
map at initialization: x86, ia64, and arm64. They all use different format
strings, plus the EFI memory type and the EFI memory attributes are
similarly hard to decode for a human reader.
Introduce a helper __init function that formats the memory type and the
memory attributes in a unified way, to a user-provided character buffer.
The array "memory_type_name" is copied from the arm64 code, temporarily
duplicating it. The (otherwise optional) braces around each string literal
in the initializer list are dropped in order to match the kernel coding
style more closely. The element size is tightened from 32 to 20 bytes
(maximum actual string length + 1) so that we can derive the field width
from the element size.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
[ Dropped useless 'register' keyword, which compiler will ignore ]
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
include/linux/efi.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 7464032ae00a..78b29b133e14 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -887,6 +887,13 @@ extern bool efi_poweroff_required(void);
(md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \
(md) = (void *)(md) + (m)->desc_size)
+/*
+ * Format an EFI memory descriptor's type and attributes to a user-provided
+ * character buffer, as per snprintf(), and return the buffer.
+ */
+char * __init efi_md_typeattr_format(char *buf, size_t size,
+ const efi_memory_desc_t *md);
+
/**
* efi_range_is_wc - check the WC bit on an address range
* @start: starting kvirt address
--
cgit v1.2.1
From 6d80dba1c9fe4316ef626980102b92fa30c7845a Mon Sep 17 00:00:00 2001
From: Matt Fleming <matt.fleming@intel.com>
Date: Tue, 30 Sep 2014 21:58:52 +0100
Subject: efi: Provide a non-blocking SetVariable() operation
There are some circumstances that call for trying to write an EFI
variable in a non-blocking way. One such scenario is when writing pstore
data in efi_pstore_write() via the pstore_dump() kdump callback.
Now that we have an EFI runtime spinlock we need a way of aborting if
there is contention instead of spinning, since when writing pstore data
from the kdump callback, the runtime lock may already be held by the CPU
that's running the callback if we crashed in the middle of an EFI
variable operation.
The situation is sufficiently special that a new EFI variable operation
is warranted.
Introduce ->set_variable_nonblocking() for this use case. It is an
optional EFI backend operation, and need only be implemented by those
backends that usually acquire locks to serialize access to EFI
variables, as is the case for virt_efi_set_variable() where we now grab
the EFI runtime spinlock.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
include/linux/efi.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 78b29b133e14..0949f9c7e872 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -503,6 +503,10 @@ typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char
typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor,
u32 attr, unsigned long data_size,
void *data);
+typedef efi_status_t
+efi_set_variable_nonblocking_t(efi_char16_t *name, efi_guid_t *vendor,
+ u32 attr, unsigned long data_size, void *data);
+
typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count);
typedef void efi_reset_system_t (int reset_type, efi_status_t status,
unsigned long data_size, efi_char16_t *data);
@@ -822,6 +826,7 @@ extern struct efi {
efi_get_variable_t *get_variable;
efi_get_next_variable_t *get_next_variable;
efi_set_variable_t *set_variable;
+ efi_set_variable_nonblocking_t *set_variable_nonblocking;
efi_query_variable_info_t *query_variable_info;
efi_update_capsule_t *update_capsule;
efi_query_capsule_caps_t *query_capsule_caps;
@@ -1042,6 +1047,7 @@ struct efivar_operations {
efi_get_variable_t *get_variable;
efi_get_next_variable_t *get_next_variable;
efi_set_variable_t *set_variable;
+ efi_set_variable_nonblocking_t *set_variable_nonblocking;
efi_query_variable_store_t *query_variable_store;
};
--
cgit v1.2.1
From 7c9e7a6fe11c8dc5b3b9d0e889dde73347247584 Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Wed, 1 Oct 2014 16:07:05 -0700
Subject: target: Add a user-passthrough backstore
Add a LIO storage engine that presents commands to userspace for execution.
This would allow more complex backstores to be implemented out-of-kernel,
and also make experimentation a-la FUSE (but at the SCSI level -- "SUSE"?)
possible.
It uses a mmap()able UIO device per LUN to share a command ring and data
area. The commands are raw SCSI CDBs and iovs for in/out data. The command
ring is also reused for returning scsi command status and optional sense
data.
This implementation is based on Shaohua Li's earlier version but heavily
modified. Differences include:
* Shared memory allocated by kernel, not locked-down user pages
* Single ring for command request and response
* Offsets instead of embedded pointers
* Generic SCSI CDB passthrough instead of per-cmd specialization in ring
format.
* Uses UIO device instead of anon_file passed in mailbox.
* Optional in-kernel handling of some commands.
The main reason for these differences is to permit greater resiliency
if the user process dies or hangs.
Things not yet implemented (on purpose):
* Zero copy. The data area is flexible enough to allow page flipping or
backend-allocated pages to be used by fabrics, but it's not clear these
are performance wins. Can come later.
* Out-of-order command completion by userspace. Possible to add by just
allowing userspace to change cmd_id in rsp cmd entries, but currently
not supported.
* No locks between kernel cmd submission and completion routines. Sounds
like it's possible, but this can come later.
* Sparse allocation of mmaped area. Current code vmallocs the whole thing.
If the mapped area was larger and not fully mapped then the driver would
have more freedom to change cmd and data area sizes based on demand.
Current code open issues:
* The use of idrs may be overkill -- we maybe can replace them with a
simple counter to generate cmd_ids, and a hash table to get a cmd_id's
associated pointer.
* Use of a free-running counter for cmd ring instead of explicit modulo
math. This would require power-of-2 cmd ring size.
(Add kconfig depends NET - Randy)
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/target_core_user.h | 142 ++++++++++++++++++++++++++++++++++
2 files changed, 143 insertions(+)
create mode 100644 include/uapi/linux/target_core_user.h
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index be88166349a1..6ebd0d1faf2e 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -371,6 +371,7 @@ header-y += swab.h
header-y += synclink.h
header-y += sysctl.h
header-y += sysinfo.h
+header-y += target_core_user.h
header-y += taskstats.h
header-y += tcp.h
header-y += tcp_metrics.h
diff --git a/include/uapi/linux/target_core_user.h b/include/uapi/linux/target_core_user.h
new file mode 100644
index 000000000000..7dcfbe6771b1
--- /dev/null
+++ b/include/uapi/linux/target_core_user.h
@@ -0,0 +1,142 @@
+#ifndef __TARGET_CORE_USER_H
+#define __TARGET_CORE_USER_H
+
+/* This header will be used by application too */
+
+#include <linux/types.h>
+#include <linux/uio.h>
+
+#ifndef __packed
+#define __packed __attribute__((packed))
+#endif
+
+#define TCMU_VERSION "1.0"
+
+/*
+ * Ring Design
+ * -----------
+ *
+ * The mmaped area is divided into three parts:
+ * 1) The mailbox (struct tcmu_mailbox, below)
+ * 2) The command ring
+ * 3) Everything beyond the command ring (data)
+ *
+ * The mailbox tells userspace the offset of the command ring from the
+ * start of the shared memory region, and how big the command ring is.
+ *
+ * The kernel passes SCSI commands to userspace by putting a struct
+ * tcmu_cmd_entry in the ring, updating mailbox->cmd_head, and poking
+ * userspace via uio's interrupt mechanism.
+ *
+ * tcmu_cmd_entry contains a header. If the header type is PAD,
+ * userspace should skip hdr->length bytes (mod cmdr_size) to find the
+ * next cmd_entry.
+ *
+ * Otherwise, the entry will contain offsets into the mmaped area that
+ * contain the cdb and data buffers -- the latter accessible via the
+ * iov array. iov addresses are also offsets into the shared area.
+ *
+ * When userspace is completed handling the command, set
+ * entry->rsp.scsi_status, fill in rsp.sense_buffer if appropriate,
+ * and also set mailbox->cmd_tail equal to the old cmd_tail plus
+ * hdr->length, mod cmdr_size. If cmd_tail doesn't equal cmd_head, it
+ * should process the next packet the same way, and so on.
+ */
+
+#define TCMU_MAILBOX_VERSION 1
+#define ALIGN_SIZE 64 /* Should be enough for most CPUs */
+
+struct tcmu_mailbox {
+ __u16 version;
+ __u16 flags;
+ __u32 cmdr_off;
+ __u32 cmdr_size;
+
+ __u32 cmd_head;
+
+ /* Updated by user. On its own cacheline */
+ __u32 cmd_tail __attribute__((__aligned__(ALIGN_SIZE)));
+
+} __packed;
+
+enum tcmu_opcode {
+ TCMU_OP_PAD = 0,
+ TCMU_OP_CMD,
+};
+
+/*
+ * Only a few opcodes, and length is 8-byte aligned, so use low bits for opcode.
+ */
+struct tcmu_cmd_entry_hdr {
+ __u32 len_op;
+} __packed;
+
+#define TCMU_OP_MASK 0x7
+
+static inline enum tcmu_opcode tcmu_hdr_get_op(struct tcmu_cmd_entry_hdr *hdr)
+{
+ return hdr->len_op & TCMU_OP_MASK;
+}
+
+static inline void tcmu_hdr_set_op(struct tcmu_cmd_entry_hdr *hdr, enum tcmu_opcode op)
+{
+ hdr->len_op &= ~TCMU_OP_MASK;
+ hdr->len_op |= (op & TCMU_OP_MASK);
+}
+
+static inline __u32 tcmu_hdr_get_len(struct tcmu_cmd_entry_hdr *hdr)
+{
+ return hdr->len_op & ~TCMU_OP_MASK;
+}
+
+static inline void tcmu_hdr_set_len(struct tcmu_cmd_entry_hdr *hdr, __u32 len)
+{
+ hdr->len_op &= TCMU_OP_MASK;
+ hdr->len_op |= len;
+}
+
+/* Currently the same as SCSI_SENSE_BUFFERSIZE */
+#define TCMU_SENSE_BUFFERSIZE 96
+
+struct tcmu_cmd_entry {
+ struct tcmu_cmd_entry_hdr hdr;
+
+ uint16_t cmd_id;
+ uint16_t __pad1;
+
+ union {
+ struct {
+ uint64_t cdb_off;
+ uint64_t iov_cnt;
+ struct iovec iov[0];
+ } req;
+ struct {
+ uint8_t scsi_status;
+ uint8_t __pad1;
+ uint16_t __pad2;
+ uint32_t __pad3;
+ char sense_buffer[TCMU_SENSE_BUFFERSIZE];
+ } rsp;
+ };
+
+} __packed;
+
+#define TCMU_OP_ALIGN_SIZE sizeof(uint64_t)
+
+enum tcmu_genl_cmd {
+ TCMU_CMD_UNSPEC,
+ TCMU_CMD_ADDED_DEVICE,
+ TCMU_CMD_REMOVED_DEVICE,
+ __TCMU_CMD_MAX,
+};
+#define TCMU_CMD_MAX (__TCMU_CMD_MAX - 1)
+
+enum tcmu_genl_attr {
+ TCMU_ATTR_UNSPEC,
+ TCMU_ATTR_DEVICE,
+ TCMU_ATTR_MINOR,
+ __TCMU_ATTR_MAX,
+};
+#define TCMU_ATTR_MAX (__TCMU_ATTR_MAX - 1)
+
+#endif
--
cgit v1.2.1
From 5772e9a3463b264cee5a4e73ef586ad482d7ba48 Mon Sep 17 00:00:00 2001
From: Jesper Dangaard Brouer <brouer@redhat.com>
Date: Wed, 1 Oct 2014 22:35:59 +0200
Subject: qdisc: bulk dequeue support for qdiscs with TCQ_F_ONETXQUEUE
Based on DaveM's recent API work on dev_hard_start_xmit(), that allows
sending/processing an entire skb list.
This patch implements qdisc bulk dequeue, by allowing multiple packets
to be dequeued in dequeue_skb().
The optimization principle for this is two fold, (1) to amortize
locking cost and (2) avoid expensive tailptr update for notifying HW.
(1) Several packets are dequeued while holding the qdisc root_lock,
amortizing locking cost over several packet. The dequeued SKB list is
processed under the TXQ lock in dev_hard_start_xmit(), thus also
amortizing the cost of the TXQ lock.
(2) Further more, dev_hard_start_xmit() will utilize the skb->xmit_more
API to delay HW tailptr update, which also reduces the cost per
packet.
One restriction of the new API is that every SKB must belong to the
same TXQ. This patch takes the easy way out, by restricting bulk
dequeue to qdisc's with the TCQ_F_ONETXQUEUE flag, that specifies the
qdisc only have attached a single TXQ.
Some detail about the flow; dev_hard_start_xmit() will process the skb
list, and transmit packets individually towards the driver (see
xmit_one()). In case the driver stops midway in the list, the
remaining skb list is returned by dev_hard_start_xmit(). In
sch_direct_xmit() this returned list is requeued by dev_requeue_skb().
To avoid overshooting the HW limits, which results in requeuing, the
patch limits the amount of bytes dequeued, based on the drivers BQL
limits. In-effect bulking will only happen for BQL enabled drivers.
Small amounts for extra HoL blocking (2x MTU/0.24ms) were
measured at 100Mbit/s, with bulking 8 packets, but the
oscillating nature of the measurement indicate something, like
sched latency might be causing this effect. More comparisons
show, that this oscillation goes away occationally. Thus, we
disregard this artifact completely and remove any "magic" bulking
limit.
For now, as a conservative approach, stop bulking when seeing TSO and
segmented GSO packets. They already benefit from bulking on their own.
A followup patch add this, to allow easier bisect-ability for finding
regressions.
Jointed work with Hannes, Daniel and Florian.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sch_generic.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index f12669819d1a..d17ed6fb2f70 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -7,6 +7,7 @@
#include <linux/pkt_sched.h>
#include <linux/pkt_cls.h>
#include <linux/percpu.h>
+#include <linux/dynamic_queue_limits.h>
#include <net/gen_stats.h>
#include <net/rtnetlink.h>
@@ -119,6 +120,21 @@ static inline void qdisc_run_end(struct Qdisc *qdisc)
qdisc->__state &= ~__QDISC___STATE_RUNNING;
}
+static inline bool qdisc_may_bulk(const struct Qdisc *qdisc)
+{
+ return qdisc->flags & TCQ_F_ONETXQUEUE;
+}
+
+static inline int qdisc_avail_bulklimit(const struct netdev_queue *txq)
+{
+#ifdef CONFIG_BQL
+ /* Non-BQL migrated drivers will return 0, too. */
+ return dql_avail(&txq->dql);
+#else
+ return 0;
+#endif
+}
+
static inline bool qdisc_is_throttled(const struct Qdisc *qdisc)
{
return test_bit(__QDISC_STATE_THROTTLED, &qdisc->state) ? true : false;
--
cgit v1.2.1
From d8f429e1669b9709f5b669aac9d734dbe0640891 Mon Sep 17 00:00:00 2001
From: Junichi Nomura <j-nomura@ce.jp.nec.com>
Date: Fri, 3 Oct 2014 17:27:12 -0400
Subject: block: add bioset_create_nobvec()
Users of bio_clone_fast() do not want bios with their own bvecs.
Allocating a bvec mempool as part of the bioset intended for such users
is a waste of memory.
bioset_create_nobvec() creates a bioset that doesn't have the bvec
mempool.
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index ce6b75964b71..7347f486ceca 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -378,6 +378,7 @@ static inline struct bio *bio_next_split(struct bio *bio, int sectors,
}
extern struct bio_set *bioset_create(unsigned int, unsigned int);
+extern struct bio_set *bioset_create_nobvec(unsigned int, unsigned int);
extern void bioset_free(struct bio_set *);
extern mempool_t *biovec_create_pool(int pool_entries);
--
cgit v1.2.1
From 906d201530f2c52aeb4eee31895c71cdccf1e9a0 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 24 Sep 2014 11:17:56 -0700
Subject: dynamic_debug: change __dynamic_<foo>_dbg return types to void
The return value is not used by callers of these functions
so change the functions to return void.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/dynamic_debug.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 2fe93b26b42f..4f1bbc68cd1b 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -42,7 +42,7 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
#if defined(CONFIG_DYNAMIC_DEBUG)
extern int ddebug_remove_module(const char *mod_name);
extern __printf(2, 3)
-int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
+void __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
extern int ddebug_dyndbg_module_param_cb(char *param, char *val,
const char *modname);
@@ -50,15 +50,15 @@ extern int ddebug_dyndbg_module_param_cb(char *param, char *val,
struct device;
extern __printf(3, 4)
-int __dynamic_dev_dbg(struct _ddebug *descriptor, const struct device *dev,
- const char *fmt, ...);
+void __dynamic_dev_dbg(struct _ddebug *descriptor, const struct device *dev,
+ const char *fmt, ...);
struct net_device;
extern __printf(3, 4)
-int __dynamic_netdev_dbg(struct _ddebug *descriptor,
- const struct net_device *dev,
- const char *fmt, ...);
+void __dynamic_netdev_dbg(struct _ddebug *descriptor,
+ const struct net_device *dev,
+ const char *fmt, ...);
#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
static struct _ddebug __aligned(8) \
--
cgit v1.2.1
From 55a93b3ea780908b7d1b3a8cf1976223a9268d78 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 3 Oct 2014 15:31:07 -0700
Subject: qdisc: validate skb without holding lock
Validation of skb can be pretty expensive :
GSO segmentation and/or checksum computations.
We can do this without holding qdisc lock, so that other cpus
can queue additional packets.
Trick is that requeued packets were already validated, so we carry
a boolean so that sch_direct_xmit() can validate a fresh skb list,
or directly use an old one.
Tested on 40Gb NIC (8 TX queues) and 200 concurrent flows, 48 threads
host.
Turning TSO on or off had no effect on throughput, only few more cpu
cycles. Lock contention on qdisc lock disappeared.
Same if disabling TX checksum offload.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 2 +-
include/net/pkt_sched.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9b7fbacb6296..910fb17ad148 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2821,7 +2821,7 @@ int dev_set_mac_address(struct net_device *, struct sockaddr *);
int dev_change_carrier(struct net_device *, bool new_carrier);
int dev_get_phys_port_id(struct net_device *dev,
struct netdev_phys_port_id *ppid);
-struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device *dev);
+struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev);
struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
struct netdev_queue *txq, int *ret);
int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 8bbe626e9ece..e4b3c828c1c2 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -99,7 +99,7 @@ void qdisc_put_stab(struct qdisc_size_table *tab);
void qdisc_warn_nonwc(const char *txt, struct Qdisc *qdisc);
int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
struct net_device *dev, struct netdev_queue *txq,
- spinlock_t *root_lock);
+ spinlock_t *root_lock, bool validate);
void __qdisc_run(struct Qdisc *q);
--
cgit v1.2.1
From c7a08ac7ee68b9af0d5af99c7b34b574cac4d144 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@mellanox.com>
Date: Thu, 2 Oct 2014 12:19:42 +0300
Subject: net/mlx5_core: Update device capabilities handling
Rearrange struct mlx5_caps so it has a "gen" field to represent the current
capabilities configured for the device. Max capabilities can also be queried
from the device. Also update capabilities struct to contain more fields as per
the latest revision if firmware specification.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx5/device.h | 24 +++++++++++++++---------
include/linux/mlx5/driver.h | 28 +++++++++++++++++++++++++---
2 files changed, 40 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 334947151dfc..dce01fd854a8 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -70,6 +70,11 @@ enum {
MLX5_INLINE_SEG = 0x80000000,
};
+enum {
+ MLX5_MIN_PKEY_TABLE_SIZE = 128,
+ MLX5_MAX_LOG_PKEY_TABLE = 5,
+};
+
enum {
MLX5_PERM_LOCAL_READ = 1 << 2,
MLX5_PERM_LOCAL_WRITE = 1 << 3,
@@ -184,10 +189,10 @@ enum {
MLX5_DEV_CAP_FLAG_CQ_MODER = 1LL << 29,
MLX5_DEV_CAP_FLAG_RESIZE_CQ = 1LL << 30,
MLX5_DEV_CAP_FLAG_RESIZE_SRQ = 1LL << 32,
+ MLX5_DEV_CAP_FLAG_DCT = 1LL << 37,
MLX5_DEV_CAP_FLAG_REMOTE_FENCE = 1LL << 38,
MLX5_DEV_CAP_FLAG_TLP_HINTS = 1LL << 39,
MLX5_DEV_CAP_FLAG_SIG_HAND_OVER = 1LL << 40,
- MLX5_DEV_CAP_FLAG_DCT = 1LL << 41,
MLX5_DEV_CAP_FLAG_CMDIF_CSUM = 3LL << 46,
};
@@ -243,10 +248,14 @@ enum {
};
enum {
- MLX5_CAP_OFF_DCT = 41,
MLX5_CAP_OFF_CMDIF_CSUM = 46,
};
+enum {
+ HCA_CAP_OPMOD_GET_MAX = 0,
+ HCA_CAP_OPMOD_GET_CUR = 1,
+};
+
struct mlx5_inbox_hdr {
__be16 opcode;
u8 rsvd[4];
@@ -303,9 +312,10 @@ struct mlx5_hca_cap {
u8 log_max_ra_req_qp;
u8 rsvd10;
u8 log_max_ra_res_qp;
- u8 rsvd11[4];
+ u8 pad_cap;
+ u8 rsvd11[3];
__be16 max_qp_count;
- __be16 rsvd12;
+ __be16 pkey_table_size;
u8 rsvd13;
u8 local_ca_ack_delay;
u8 rsvd14;
@@ -335,11 +345,7 @@ struct mlx5_hca_cap {
u8 log_max_xrcd;
u8 rsvd25[42];
__be16 log_uar_page_sz;
- u8 rsvd26[28];
- u8 log_max_atomic_size_qp;
- u8 rsvd27[2];
- u8 log_max_atomic_size_dc;
- u8 rsvd28[76];
+ u8 rsvd26[108];
};
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index b88e9b46d957..45a2add747e0 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -335,23 +335,30 @@ struct mlx5_port_caps {
int pkey_table_len;
};
-struct mlx5_caps {
+struct mlx5_general_caps {
u8 log_max_eq;
u8 log_max_cq;
u8 log_max_qp;
u8 log_max_mkey;
u8 log_max_pd;
u8 log_max_srq;
+ u8 log_max_strq;
+ u8 log_max_mrw_sz;
+ u8 log_max_bsf_list_size;
+ u8 log_max_klm_list_size;
u32 max_cqes;
int max_wqes;
+ u32 max_eqes;
+ u32 max_indirection;
int max_sq_desc_sz;
int max_rq_desc_sz;
+ int max_dc_sq_desc_sz;
u64 flags;
u16 stat_rate_support;
int log_max_msg;
int num_ports;
- int max_ra_res_qp;
- int max_ra_req_qp;
+ u8 log_max_ra_res_qp;
+ u8 log_max_ra_req_qp;
int max_srq_wqes;
int bf_reg_size;
int bf_regs_per_page;
@@ -363,6 +370,19 @@ struct mlx5_caps {
u8 log_max_mcg;
u32 max_qp_mcg;
int min_page_sz;
+ int pd_cap;
+ u32 max_qp_counters;
+ u32 pkey_table_size;
+ u8 log_max_ra_req_dc;
+ u8 log_max_ra_res_dc;
+ u32 uar_sz;
+ u8 min_log_pg_sz;
+ u8 log_max_xrcd;
+ u16 log_uar_page_sz;
+};
+
+struct mlx5_caps {
+ struct mlx5_general_caps gen;
};
struct mlx5_cmd_mailbox {
@@ -695,6 +715,8 @@ void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr);
+int mlx5_core_get_caps(struct mlx5_core_dev *dev, struct mlx5_caps *caps,
+ u16 opmod);
int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
int out_size);
int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
--
cgit v1.2.1
From d29b796adada8780db3512c4a34b339f9aeef1ae Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@mellanox.com>
Date: Thu, 2 Oct 2014 12:19:43 +0300
Subject: net/mlx5_core: Use hardware registers description header file
Add an auto generated header file that describes hardware registers along with
set of macros that set/get values. The macros do static checks to avoid
overflow, handle endianess, and overall provide a clean way to code commands.
Currently the header file is small and we will add structs as we make use of
the macros.
A few commands were removed from the commands enum since they are not supported
currently and will be added when support is available.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx5/device.h | 44 +++++++++++++
include/linux/mlx5/driver.h | 76 +---------------------
include/linux/mlx5/mlx5_ifc.h | 143 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 188 insertions(+), 75 deletions(-)
create mode 100644 include/linux/mlx5/mlx5_ifc.h
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index dce01fd854a8..0032687f58c7 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -44,6 +44,50 @@
#error Host endianness not defined
#endif
+/* helper macros */
+#define __mlx5_nullp(typ) ((struct mlx5_ifc_##typ##_bits *)0)
+#define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
+#define __mlx5_bit_off(typ, fld) ((unsigned)(unsigned long)(&(__mlx5_nullp(typ)->fld)))
+#define __mlx5_dw_off(typ, fld) (__mlx5_bit_off(typ, fld) / 32)
+#define __mlx5_64_off(typ, fld) (__mlx5_bit_off(typ, fld) / 64)
+#define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - (__mlx5_bit_off(typ, fld) & 0x1f))
+#define __mlx5_mask(typ, fld) ((u32)((1ull << __mlx5_bit_sz(typ, fld)) - 1))
+#define __mlx5_dw_mask(typ, fld) (__mlx5_mask(typ, fld) << __mlx5_dw_bit_off(typ, fld))
+#define __mlx5_st_sz_bits(typ) sizeof(struct mlx5_ifc_##typ##_bits)
+
+#define MLX5_FLD_SZ_BYTES(typ, fld) (__mlx5_bit_sz(typ, fld) / 8)
+#define MLX5_ST_SZ_BYTES(typ) (sizeof(struct mlx5_ifc_##typ##_bits) / 8)
+#define MLX5_ST_SZ_DW(typ) (sizeof(struct mlx5_ifc_##typ##_bits) / 32)
+#define MLX5_BYTE_OFF(typ, fld) (__mlx5_bit_off(typ, fld) / 8)
+#define MLX5_ADDR_OF(typ, p, fld) ((char *)(p) + MLX5_BYTE_OFF(typ, fld))
+
+/* insert a value to a struct */
+#define MLX5_SET(typ, p, fld, v) do { \
+ BUILD_BUG_ON(__mlx5_st_sz_bits(typ) % 32); \
+ *((__be32 *)(p) + __mlx5_dw_off(typ, fld)) = \
+ cpu_to_be32((be32_to_cpu(*((__be32 *)(p) + __mlx5_dw_off(typ, fld))) & \
+ (~__mlx5_dw_mask(typ, fld))) | (((v) & __mlx5_mask(typ, fld)) \
+ << __mlx5_dw_bit_off(typ, fld))); \
+} while (0)
+
+#define MLX5_GET(typ, p, fld) ((be32_to_cpu(*((__be32 *)(p) +\
+__mlx5_dw_off(typ, fld))) >> __mlx5_dw_bit_off(typ, fld)) & \
+__mlx5_mask(typ, fld))
+
+#define MLX5_GET_PR(typ, p, fld) ({ \
+ u32 ___t = MLX5_GET(typ, p, fld); \
+ pr_debug(#fld " = 0x%x\n", ___t); \
+ ___t; \
+})
+
+#define MLX5_SET64(typ, p, fld, v) do { \
+ BUILD_BUG_ON(__mlx5_bit_sz(typ, fld) != 64); \
+ BUILD_BUG_ON(__mlx5_bit_off(typ, fld) % 64); \
+ *((__be64 *)(p) + __mlx5_64_off(typ, fld)) = cpu_to_be64(v); \
+} while (0)
+
+#define MLX5_GET64(typ, p, fld) be64_to_cpu(*((__be64 *)(p) + __mlx5_64_off(typ, fld)))
+
enum {
MLX5_MAX_COMMANDS = 32,
MLX5_CMD_DATA_BLOCK_SIZE = 512,
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 45a2add747e0..6f48dc793b9f 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -44,6 +44,7 @@
#include <linux/mlx5/device.h>
#include <linux/mlx5/doorbell.h>
+#include <linux/mlx5/mlx5_ifc.h>
enum {
MLX5_BOARD_ID_LEN = 64,
@@ -98,81 +99,6 @@ enum {
MLX5_ATOMIC_MODE_256B = 8 << 16,
};
-enum {
- MLX5_CMD_OP_QUERY_HCA_CAP = 0x100,
- MLX5_CMD_OP_QUERY_ADAPTER = 0x101,
- MLX5_CMD_OP_INIT_HCA = 0x102,
- MLX5_CMD_OP_TEARDOWN_HCA = 0x103,
- MLX5_CMD_OP_ENABLE_HCA = 0x104,
- MLX5_CMD_OP_DISABLE_HCA = 0x105,
- MLX5_CMD_OP_QUERY_PAGES = 0x107,
- MLX5_CMD_OP_MANAGE_PAGES = 0x108,
- MLX5_CMD_OP_SET_HCA_CAP = 0x109,
-
- MLX5_CMD_OP_CREATE_MKEY = 0x200,
- MLX5_CMD_OP_QUERY_MKEY = 0x201,
- MLX5_CMD_OP_DESTROY_MKEY = 0x202,
- MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS = 0x203,
-
- MLX5_CMD_OP_CREATE_EQ = 0x301,
- MLX5_CMD_OP_DESTROY_EQ = 0x302,
- MLX5_CMD_OP_QUERY_EQ = 0x303,
-
- MLX5_CMD_OP_CREATE_CQ = 0x400,
- MLX5_CMD_OP_DESTROY_CQ = 0x401,
- MLX5_CMD_OP_QUERY_CQ = 0x402,
- MLX5_CMD_OP_MODIFY_CQ = 0x403,
-
- MLX5_CMD_OP_CREATE_QP = 0x500,
- MLX5_CMD_OP_DESTROY_QP = 0x501,
- MLX5_CMD_OP_RST2INIT_QP = 0x502,
- MLX5_CMD_OP_INIT2RTR_QP = 0x503,
- MLX5_CMD_OP_RTR2RTS_QP = 0x504,
- MLX5_CMD_OP_RTS2RTS_QP = 0x505,
- MLX5_CMD_OP_SQERR2RTS_QP = 0x506,
- MLX5_CMD_OP_2ERR_QP = 0x507,
- MLX5_CMD_OP_RTS2SQD_QP = 0x508,
- MLX5_CMD_OP_SQD2RTS_QP = 0x509,
- MLX5_CMD_OP_2RST_QP = 0x50a,
- MLX5_CMD_OP_QUERY_QP = 0x50b,
- MLX5_CMD_OP_CONF_SQP = 0x50c,
- MLX5_CMD_OP_MAD_IFC = 0x50d,
- MLX5_CMD_OP_INIT2INIT_QP = 0x50e,
- MLX5_CMD_OP_SUSPEND_QP = 0x50f,
- MLX5_CMD_OP_UNSUSPEND_QP = 0x510,
- MLX5_CMD_OP_SQD2SQD_QP = 0x511,
- MLX5_CMD_OP_ALLOC_QP_COUNTER_SET = 0x512,
- MLX5_CMD_OP_DEALLOC_QP_COUNTER_SET = 0x513,
- MLX5_CMD_OP_QUERY_QP_COUNTER_SET = 0x514,
-
- MLX5_CMD_OP_CREATE_PSV = 0x600,
- MLX5_CMD_OP_DESTROY_PSV = 0x601,
- MLX5_CMD_OP_QUERY_PSV = 0x602,
- MLX5_CMD_OP_QUERY_SIG_RULE_TABLE = 0x603,
- MLX5_CMD_OP_QUERY_BLOCK_SIZE_TABLE = 0x604,
-
- MLX5_CMD_OP_CREATE_SRQ = 0x700,
- MLX5_CMD_OP_DESTROY_SRQ = 0x701,
- MLX5_CMD_OP_QUERY_SRQ = 0x702,
- MLX5_CMD_OP_ARM_RQ = 0x703,
- MLX5_CMD_OP_RESIZE_SRQ = 0x704,
-
- MLX5_CMD_OP_ALLOC_PD = 0x800,
- MLX5_CMD_OP_DEALLOC_PD = 0x801,
- MLX5_CMD_OP_ALLOC_UAR = 0x802,
- MLX5_CMD_OP_DEALLOC_UAR = 0x803,
-
- MLX5_CMD_OP_ATTACH_TO_MCG = 0x806,
- MLX5_CMD_OP_DETACH_FROM_MCG = 0x807,
-
-
- MLX5_CMD_OP_ALLOC_XRCD = 0x80e,
- MLX5_CMD_OP_DEALLOC_XRCD = 0x80f,
-
- MLX5_CMD_OP_ACCESS_REG = 0x805,
- MLX5_CMD_OP_MAX = 0x810,
-};
-
enum {
MLX5_REG_PCAP = 0x5001,
MLX5_REG_PMTU = 0x5003,
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
new file mode 100644
index 000000000000..df3bd9b5fbcf
--- /dev/null
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2014, Mellanox Technologies inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX5_IFC_H
+#define MLX5_IFC_H
+
+enum {
+ MLX5_CMD_OP_QUERY_HCA_CAP = 0x100,
+ MLX5_CMD_OP_QUERY_ADAPTER = 0x101,
+ MLX5_CMD_OP_INIT_HCA = 0x102,
+ MLX5_CMD_OP_TEARDOWN_HCA = 0x103,
+ MLX5_CMD_OP_ENABLE_HCA = 0x104,
+ MLX5_CMD_OP_DISABLE_HCA = 0x105,
+ MLX5_CMD_OP_QUERY_PAGES = 0x107,
+ MLX5_CMD_OP_MANAGE_PAGES = 0x108,
+ MLX5_CMD_OP_SET_HCA_CAP = 0x109,
+ MLX5_CMD_OP_CREATE_MKEY = 0x200,
+ MLX5_CMD_OP_QUERY_MKEY = 0x201,
+ MLX5_CMD_OP_DESTROY_MKEY = 0x202,
+ MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS = 0x203,
+ MLX5_CMD_OP_PAGE_FAULT_RESUME = 0x204,
+ MLX5_CMD_OP_CREATE_EQ = 0x301,
+ MLX5_CMD_OP_DESTROY_EQ = 0x302,
+ MLX5_CMD_OP_QUERY_EQ = 0x303,
+ MLX5_CMD_OP_GEN_EQE = 0x304,
+ MLX5_CMD_OP_CREATE_CQ = 0x400,
+ MLX5_CMD_OP_DESTROY_CQ = 0x401,
+ MLX5_CMD_OP_QUERY_CQ = 0x402,
+ MLX5_CMD_OP_MODIFY_CQ = 0x403,
+ MLX5_CMD_OP_CREATE_QP = 0x500,
+ MLX5_CMD_OP_DESTROY_QP = 0x501,
+ MLX5_CMD_OP_RST2INIT_QP = 0x502,
+ MLX5_CMD_OP_INIT2RTR_QP = 0x503,
+ MLX5_CMD_OP_RTR2RTS_QP = 0x504,
+ MLX5_CMD_OP_RTS2RTS_QP = 0x505,
+ MLX5_CMD_OP_SQERR2RTS_QP = 0x506,
+ MLX5_CMD_OP_2ERR_QP = 0x507,
+ MLX5_CMD_OP_2RST_QP = 0x50a,
+ MLX5_CMD_OP_QUERY_QP = 0x50b,
+ MLX5_CMD_OP_INIT2INIT_QP = 0x50e,
+ MLX5_CMD_OP_CREATE_PSV = 0x600,
+ MLX5_CMD_OP_DESTROY_PSV = 0x601,
+ MLX5_CMD_OP_CREATE_SRQ = 0x700,
+ MLX5_CMD_OP_DESTROY_SRQ = 0x701,
+ MLX5_CMD_OP_QUERY_SRQ = 0x702,
+ MLX5_CMD_OP_ARM_RQ = 0x703,
+ MLX5_CMD_OP_RESIZE_SRQ = 0x704,
+ MLX5_CMD_OP_CREATE_DCT = 0x710,
+ MLX5_CMD_OP_DESTROY_DCT = 0x711,
+ MLX5_CMD_OP_DRAIN_DCT = 0x712,
+ MLX5_CMD_OP_QUERY_DCT = 0x713,
+ MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION = 0x714,
+ MLX5_CMD_OP_QUERY_VPORT_STATE = 0x750,
+ MLX5_CMD_OP_MODIFY_VPORT_STATE = 0x751,
+ MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT = 0x752,
+ MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT = 0x753,
+ MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT = 0x754,
+ MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT = 0x755,
+ MLX5_CMD_OP_QUERY_RCOE_ADDRESS = 0x760,
+ MLX5_CMD_OP_SET_ROCE_ADDRESS = 0x761,
+ MLX5_CMD_OP_QUERY_VPORT_COUNTER = 0x770,
+ MLX5_CMD_OP_ALLOC_Q_COUNTER = 0x771,
+ MLX5_CMD_OP_DEALLOC_Q_COUNTER = 0x772,
+ MLX5_CMD_OP_QUERY_Q_COUNTER = 0x773,
+ MLX5_CMD_OP_ALLOC_PD = 0x800,
+ MLX5_CMD_OP_DEALLOC_PD = 0x801,
+ MLX5_CMD_OP_ALLOC_UAR = 0x802,
+ MLX5_CMD_OP_DEALLOC_UAR = 0x803,
+ MLX5_CMD_OP_CONFIG_INT_MODERATION = 0x804,
+ MLX5_CMD_OP_ACCESS_REG = 0x805,
+ MLX5_CMD_OP_ATTACH_TO_MCG = 0x806,
+ MLX5_CMD_OP_DETACH_FROM_MCG = 0x807,
+ MLX5_CMD_OP_GET_DROPPED_PACKET_LOG = 0x80a,
+ MLX5_CMD_OP_MAD_IFC = 0x50d,
+ MLX5_CMD_OP_QUERY_MAD_DEMUX = 0x80b,
+ MLX5_CMD_OP_SET_MAD_DEMUX = 0x80c,
+ MLX5_CMD_OP_NOP = 0x80d,
+ MLX5_CMD_OP_ALLOC_XRCD = 0x80e,
+ MLX5_CMD_OP_DEALLOC_XRCD = 0x80f,
+ MLX5_CMD_OP_SET_BURST_SIZE = 0x812,
+ MLX5_CMD_OP_QUERY_BURST_SZIE = 0x813,
+ MLX5_CMD_OP_ACTIVATE_TRACER = 0x814,
+ MLX5_CMD_OP_DEACTIVATE_TRACER = 0x815,
+ MLX5_CMD_OP_CREATE_SNIFFER_RULE = 0x820,
+ MLX5_CMD_OP_DESTROY_SNIFFER_RULE = 0x821,
+ MLX5_CMD_OP_QUERY_CONG_PARAMS = 0x822,
+ MLX5_CMD_OP_MODIFY_CONG_PARAMS = 0x823,
+ MLX5_CMD_OP_QUERY_CONG_STATISTICS = 0x824,
+ MLX5_CMD_OP_CREATE_TIR = 0x900,
+ MLX5_CMD_OP_MODIFY_TIR = 0x901,
+ MLX5_CMD_OP_DESTROY_TIR = 0x902,
+ MLX5_CMD_OP_QUERY_TIR = 0x903,
+ MLX5_CMD_OP_CREATE_TIS = 0x912,
+ MLX5_CMD_OP_MODIFY_TIS = 0x913,
+ MLX5_CMD_OP_DESTROY_TIS = 0x914,
+ MLX5_CMD_OP_QUERY_TIS = 0x915,
+ MLX5_CMD_OP_CREATE_SQ = 0x904,
+ MLX5_CMD_OP_MODIFY_SQ = 0x905,
+ MLX5_CMD_OP_DESTROY_SQ = 0x906,
+ MLX5_CMD_OP_QUERY_SQ = 0x907,
+ MLX5_CMD_OP_CREATE_RQ = 0x908,
+ MLX5_CMD_OP_MODIFY_RQ = 0x909,
+ MLX5_CMD_OP_DESTROY_RQ = 0x90a,
+ MLX5_CMD_OP_QUERY_RQ = 0x90b,
+ MLX5_CMD_OP_CREATE_RMP = 0x90c,
+ MLX5_CMD_OP_MODIFY_RMP = 0x90d,
+ MLX5_CMD_OP_DESTROY_RMP = 0x90e,
+ MLX5_CMD_OP_QUERY_RMP = 0x90f,
+ MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY = 0x910,
+ MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY = 0x911,
+ MLX5_CMD_OP_MAX = 0x911
+};
+
+#endif /* MLX5_IFC_H */
--
cgit v1.2.1
From b775516b042f9e35f856bd2914afefd9d23021d7 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@mellanox.com>
Date: Thu, 2 Oct 2014 12:19:44 +0300
Subject: net/mlx5_core: use set/get macros in device caps
Transform device capabilities related commands to use set/get macros to
manipulate command mailboxes.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx5/device.h | 92 -------------------
include/linux/mlx5/driver.h | 1 +
include/linux/mlx5/mlx5_ifc.h | 206 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 207 insertions(+), 92 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 0032687f58c7..1d67fd32e71c 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -327,98 +327,6 @@ struct mlx5_cmd_query_adapter_mbox_out {
u8 vsd_psid[16];
};
-struct mlx5_hca_cap {
- u8 rsvd1[16];
- u8 log_max_srq_sz;
- u8 log_max_qp_sz;
- u8 rsvd2;
- u8 log_max_qp;
- u8 log_max_strq_sz;
- u8 log_max_srqs;
- u8 rsvd4[2];
- u8 rsvd5;
- u8 log_max_cq_sz;
- u8 rsvd6;
- u8 log_max_cq;
- u8 log_max_eq_sz;
- u8 log_max_mkey;
- u8 rsvd7;
- u8 log_max_eq;
- u8 max_indirection;
- u8 log_max_mrw_sz;
- u8 log_max_bsf_list_sz;
- u8 log_max_klm_list_sz;
- u8 rsvd_8_0;
- u8 log_max_ra_req_dc;
- u8 rsvd_8_1;
- u8 log_max_ra_res_dc;
- u8 rsvd9;
- u8 log_max_ra_req_qp;
- u8 rsvd10;
- u8 log_max_ra_res_qp;
- u8 pad_cap;
- u8 rsvd11[3];
- __be16 max_qp_count;
- __be16 pkey_table_size;
- u8 rsvd13;
- u8 local_ca_ack_delay;
- u8 rsvd14;
- u8 num_ports;
- u8 log_max_msg;
- u8 rsvd15[3];
- __be16 stat_rate_support;
- u8 rsvd16[2];
- __be64 flags;
- u8 rsvd17;
- u8 uar_sz;
- u8 rsvd18;
- u8 log_pg_sz;
- __be16 bf_log_bf_reg_size;
- u8 rsvd19[4];
- __be16 max_desc_sz_sq;
- u8 rsvd20[2];
- __be16 max_desc_sz_rq;
- u8 rsvd21[2];
- __be16 max_desc_sz_sq_dc;
- __be32 max_qp_mcg;
- u8 rsvd22[3];
- u8 log_max_mcg;
- u8 rsvd23;
- u8 log_max_pd;
- u8 rsvd24;
- u8 log_max_xrcd;
- u8 rsvd25[42];
- __be16 log_uar_page_sz;
- u8 rsvd26[108];
-};
-
-
-struct mlx5_cmd_query_hca_cap_mbox_in {
- struct mlx5_inbox_hdr hdr;
- u8 rsvd[8];
-};
-
-
-struct mlx5_cmd_query_hca_cap_mbox_out {
- struct mlx5_outbox_hdr hdr;
- u8 rsvd0[8];
- struct mlx5_hca_cap hca_cap;
-};
-
-
-struct mlx5_cmd_set_hca_cap_mbox_in {
- struct mlx5_inbox_hdr hdr;
- u8 rsvd[8];
- struct mlx5_hca_cap hca_cap;
-};
-
-
-struct mlx5_cmd_set_hca_cap_mbox_out {
- struct mlx5_outbox_hdr hdr;
- u8 rsvd0[8];
-};
-
-
struct mlx5_cmd_init_hca_mbox_in {
struct mlx5_inbox_hdr hdr;
u8 rsvd0[2];
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 6f48dc793b9f..c439f9c59b93 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -641,6 +641,7 @@ void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr);
+int mlx5_cmd_status_to_err_v2(void *ptr);
int mlx5_core_get_caps(struct mlx5_core_dev *dev, struct mlx5_caps *caps,
u16 opmod);
int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index df3bd9b5fbcf..5f48b8f592c5 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -140,4 +140,210 @@ enum {
MLX5_CMD_OP_MAX = 0x911
};
+struct mlx5_ifc_cmd_hca_cap_bits {
+ u8 reserved_0[0x80];
+
+ u8 log_max_srq_sz[0x8];
+ u8 log_max_qp_sz[0x8];
+ u8 reserved_1[0xb];
+ u8 log_max_qp[0x5];
+
+ u8 log_max_strq_sz[0x8];
+ u8 reserved_2[0x3];
+ u8 log_max_srqs[0x5];
+ u8 reserved_3[0x10];
+
+ u8 reserved_4[0x8];
+ u8 log_max_cq_sz[0x8];
+ u8 reserved_5[0xb];
+ u8 log_max_cq[0x5];
+
+ u8 log_max_eq_sz[0x8];
+ u8 reserved_6[0x2];
+ u8 log_max_mkey[0x6];
+ u8 reserved_7[0xc];
+ u8 log_max_eq[0x4];
+
+ u8 max_indirection[0x8];
+ u8 reserved_8[0x1];
+ u8 log_max_mrw_sz[0x7];
+ u8 reserved_9[0x2];
+ u8 log_max_bsf_list_size[0x6];
+ u8 reserved_10[0x2];
+ u8 log_max_klm_list_size[0x6];
+
+ u8 reserved_11[0xa];
+ u8 log_max_ra_req_dc[0x6];
+ u8 reserved_12[0xa];
+ u8 log_max_ra_res_dc[0x6];
+
+ u8 reserved_13[0xa];
+ u8 log_max_ra_req_qp[0x6];
+ u8 reserved_14[0xa];
+ u8 log_max_ra_res_qp[0x6];
+
+ u8 pad_cap[0x1];
+ u8 cc_query_allowed[0x1];
+ u8 cc_modify_allowed[0x1];
+ u8 reserved_15[0x1d];
+
+ u8 reserved_16[0x6];
+ u8 max_qp_cnt[0xa];
+ u8 pkey_table_size[0x10];
+
+ u8 eswitch_owner[0x1];
+ u8 reserved_17[0xa];
+ u8 local_ca_ack_delay[0x5];
+ u8 reserved_18[0x8];
+ u8 num_ports[0x8];
+
+ u8 reserved_19[0x3];
+ u8 log_max_msg[0x5];
+ u8 reserved_20[0x18];
+
+ u8 stat_rate_support[0x10];
+ u8 reserved_21[0x10];
+
+ u8 reserved_22[0x10];
+ u8 cmdif_checksum[0x2];
+ u8 sigerr_cqe[0x1];
+ u8 reserved_23[0x1];
+ u8 wq_signature[0x1];
+ u8 sctr_data_cqe[0x1];
+ u8 reserved_24[0x1];
+ u8 sho[0x1];
+ u8 tph[0x1];
+ u8 rf[0x1];
+ u8 dc[0x1];
+ u8 reserved_25[0x2];
+ u8 roce[0x1];
+ u8 atomic[0x1];
+ u8 rsz_srq[0x1];
+
+ u8 cq_oi[0x1];
+ u8 cq_resize[0x1];
+ u8 cq_moderation[0x1];
+ u8 sniffer_rule_flow[0x1];
+ u8 sniffer_rule_vport[0x1];
+ u8 sniffer_rule_phy[0x1];
+ u8 reserved_26[0x1];
+ u8 pg[0x1];
+ u8 block_lb_mc[0x1];
+ u8 reserved_27[0x3];
+ u8 cd[0x1];
+ u8 reserved_28[0x1];
+ u8 apm[0x1];
+ u8 reserved_29[0x7];
+ u8 qkv[0x1];
+ u8 pkv[0x1];
+ u8 reserved_30[0x4];
+ u8 xrc[0x1];
+ u8 ud[0x1];
+ u8 uc[0x1];
+ u8 rc[0x1];
+
+ u8 reserved_31[0xa];
+ u8 uar_sz[0x6];
+ u8 reserved_32[0x8];
+ u8 log_pg_sz[0x8];
+
+ u8 bf[0x1];
+ u8 reserved_33[0xa];
+ u8 log_bf_reg_size[0x5];
+ u8 reserved_34[0x10];
+
+ u8 reserved_35[0x10];
+ u8 max_wqe_sz_sq[0x10];
+
+ u8 reserved_36[0x10];
+ u8 max_wqe_sz_rq[0x10];
+
+ u8 reserved_37[0x10];
+ u8 max_wqe_sz_sq_dc[0x10];
+
+ u8 reserved_38[0x7];
+ u8 max_qp_mcg[0x19];
+
+ u8 reserved_39[0x18];
+ u8 log_max_mcg[0x8];
+
+ u8 reserved_40[0xb];
+ u8 log_max_pd[0x5];
+ u8 reserved_41[0xb];
+ u8 log_max_xrcd[0x5];
+
+ u8 reserved_42[0x20];
+
+ u8 reserved_43[0x3];
+ u8 log_max_rq[0x5];
+ u8 reserved_44[0x3];
+ u8 log_max_sq[0x5];
+ u8 reserved_45[0x3];
+ u8 log_max_tir[0x5];
+ u8 reserved_46[0x3];
+ u8 log_max_tis[0x5];
+
+ u8 reserved_47[0x13];
+ u8 log_max_rq_per_tir[0x5];
+ u8 reserved_48[0x3];
+ u8 log_max_tis_per_sq[0x5];
+
+ u8 reserved_49[0xe0];
+
+ u8 reserved_50[0x10];
+ u8 log_uar_page_sz[0x10];
+
+ u8 reserved_51[0x100];
+
+ u8 reserved_52[0x1f];
+ u8 cqe_zip[0x1];
+
+ u8 cqe_zip_timeout[0x10];
+ u8 cqe_zip_max_num[0x10];
+
+ u8 reserved_53[0x220];
+};
+
+struct mlx5_ifc_set_hca_cap_in_bits {
+ u8 opcode[0x10];
+ u8 reserved_0[0x10];
+
+ u8 reserved_1[0x10];
+ u8 op_mod[0x10];
+
+ u8 reserved_2[0x40];
+
+ struct mlx5_ifc_cmd_hca_cap_bits hca_capability_struct;
+};
+
+struct mlx5_ifc_query_hca_cap_in_bits {
+ u8 opcode[0x10];
+ u8 reserved_0[0x10];
+
+ u8 reserved_1[0x10];
+ u8 op_mod[0x10];
+
+ u8 reserved_2[0x40];
+};
+
+struct mlx5_ifc_query_hca_cap_out_bits {
+ u8 status[0x8];
+ u8 reserved_0[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_1[0x40];
+
+ u8 capability_struct[256][0x8];
+};
+
+struct mlx5_ifc_set_hca_cap_out_bits {
+ u8 status[0x8];
+ u8 reserved_0[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_1[0x40];
+};
+
#endif /* MLX5_IFC_H */
--
cgit v1.2.1
From 5903325a64834211daf63a62db3b35ee580cb8bf Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@mellanox.com>
Date: Thu, 2 Oct 2014 12:19:45 +0300
Subject: net/mlx5_core: Identify resources by their type
This patch puts a common part as the first field of mlx5_core_qp. This field is
used to identify which resource generated an event. This is required since upcoming
new resource types such as DC targets are allocated for the same numerical space
as regular QPs and may generate the same events. By searching the resource in the
same table we can then look at the common field to identify the resource.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx5/driver.h | 13 ++++++++++++-
include/linux/mlx5/qp.h | 3 +--
2 files changed, 13 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index c439f9c59b93..246310dc8bef 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -375,6 +375,16 @@ struct mlx5_core_mr {
u32 pd;
};
+enum mlx5_res_type {
+ MLX5_RES_QP,
+};
+
+struct mlx5_core_rsc_common {
+ enum mlx5_res_type res;
+ atomic_t refcount;
+ struct completion free;
+};
+
struct mlx5_core_srq {
u32 srqn;
int max;
@@ -700,7 +710,7 @@ int mlx5_eq_init(struct mlx5_core_dev *dev);
void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
-void mlx5_qp_event(struct mlx5_core_dev *dev, u32 qpn, int event_type);
+void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector);
@@ -737,6 +747,7 @@ void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
int npsvs, u32 *sig_index);
int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
+void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
static inline u32 mlx5_mkey_to_idx(u32 mkey)
{
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 9709b30e2d69..7c4c0f1f5805 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -342,10 +342,9 @@ struct mlx5_stride_block_ctrl_seg {
};
struct mlx5_core_qp {
+ struct mlx5_core_rsc_common common; /* must be first */
void (*event) (struct mlx5_core_qp *, int);
int qpn;
- atomic_t refcount;
- struct completion free;
struct mlx5_rsc_debug *dbg;
int pid;
};
--
cgit v1.2.1
From efc98d08e1ec4fd131f794370b274dceaf32c958 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Fri, 3 Oct 2014 15:48:08 -0700
Subject: fou: eliminate IPv4,v6 specific GRO functions
This patch removes fou[46]_gro_receive and fou[46]_gro_complete
functions. The v4 or v6 variants were chosen for the UDP offloads
based on the address family of the socket this is not necessary
or correct. Alternatively, this patch adds is_ipv6 to napi_gro_skb.
This is set in udp6_gro_receive and unset in udp4_gro_receive. In
fou_gro_receive the value is used to select the correct inet_offloads
for the protocol of the outer IP header.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 910fb17ad148..22d54b9b700d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1886,6 +1886,9 @@ struct napi_gro_cb {
/* Number of checksums via CHECKSUM_UNNECESSARY */
u8 csum_cnt:3;
+ /* Used in foo-over-udp, set in udp[46]_gro_receive */
+ u8 is_ipv6:1;
+
/* used to support CHECKSUM_COMPLETE for tunneling protocols */
__wsum csum;
--
cgit v1.2.1
From 37dd0247797b168ad1cc7f5dbec825a1ee66535b Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Fri, 3 Oct 2014 15:48:09 -0700
Subject: gue: Receive side for Generic UDP Encapsulation
This patch adds support receiving for GUE packets in the fou module. The
fou module now supports direct foo-over-udp (no encapsulation header)
and GUE. To support this a type parameter is added to the fou netlink
parameters.
For a GUE socket we define gue_udp_recv, gue_gro_receive, and
gue_gro_complete to handle the specifics of the GUE protocol. Most
of the code to manage and configure sockets is common with the fou.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/gue.h | 23 +++++++++++++++++++++++
include/uapi/linux/fou.h | 7 +++++++
2 files changed, 30 insertions(+)
create mode 100644 include/net/gue.h
(limited to 'include')
diff --git a/include/net/gue.h b/include/net/gue.h
new file mode 100644
index 000000000000..b6c332788084
--- /dev/null
+++ b/include/net/gue.h
@@ -0,0 +1,23 @@
+#ifndef __NET_GUE_H
+#define __NET_GUE_H
+
+struct guehdr {
+ union {
+ struct {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 hlen:4,
+ version:4;
+#elif defined (__BIG_ENDIAN_BITFIELD)
+ __u8 version:4,
+ hlen:4;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+ __u8 next_hdr;
+ __u16 flags;
+ };
+ __u32 word;
+ };
+};
+
+#endif
diff --git a/include/uapi/linux/fou.h b/include/uapi/linux/fou.h
index e03376de453d..8df06894da23 100644
--- a/include/uapi/linux/fou.h
+++ b/include/uapi/linux/fou.h
@@ -13,6 +13,7 @@ enum {
FOU_ATTR_PORT, /* u16 */
FOU_ATTR_AF, /* u8 */
FOU_ATTR_IPPROTO, /* u8 */
+ FOU_ATTR_TYPE, /* u8 */
__FOU_ATTR_MAX,
};
@@ -27,6 +28,12 @@ enum {
__FOU_CMD_MAX,
};
+enum {
+ FOU_ENCAP_UNSPEC,
+ FOU_ENCAP_DIRECT,
+ FOU_ENCAP_GUE,
+};
+
#define FOU_CMD_MAX (__FOU_CMD_MAX - 1)
#endif /* _UAPI_LINUX_FOU_H */
--
cgit v1.2.1
From bc1fc390e1728672b5b343b85185fcc1fe41043b Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Fri, 3 Oct 2014 15:48:10 -0700
Subject: ip_tunnel: Add GUE support
This patch allows configuring IPIP, sit, and GRE tunnels to use GUE.
This is very similar to fou excpet that we need to insert the GUE header
in addition to the UDP header on transmit.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_tunnel.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 7c832afdfa94..280d9e092283 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -64,6 +64,7 @@ enum {
enum tunnel_encap_types {
TUNNEL_ENCAP_NONE,
TUNNEL_ENCAP_FOU,
+ TUNNEL_ENCAP_GUE,
};
#define TUNNEL_ENCAP_FLAG_CSUM (1<<0)
--
cgit v1.2.1
From 92404e609a2dffc55a9a22540ed48b6f0edc9c59 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Sat, 4 Oct 2014 01:06:08 +0000
Subject: target: Add force_pr_aptpl device attribute
This patch adds a force_pr_aptpl device attribute used to force SPC-3 PR
Activate Persistence across Target Power Loss (APTPL) operation. This
makes PR metadata write-out occur during state change regardless if new
PERSISTENT_RESERVE_OUT CDBs have their APTPL feature bit set.
This is useful during H/A failover in active/passive setups where all PR
state is being re-created on a different node, driven by configfs backend
device + export layout and pre-loaded $DEV/pr/res_aptpl_metadata.
Cc: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_base.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index b106240d8385..23c518a0340c 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -108,6 +108,8 @@
#define DA_EMULATE_ALUA 0
/* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
#define DA_ENFORCE_PR_ISIDS 1
+/* Force SPC-3 PR Activate Persistence across Target Power Loss */
+#define DA_FORCE_PR_APTPL 0
#define DA_STATUS_MAX_SECTORS_MIN 16
#define DA_STATUS_MAX_SECTORS_MAX 8192
/* By default don't report non-rotating (solid state) medium */
@@ -680,6 +682,7 @@ struct se_dev_attrib {
enum target_prot_type pi_prot_type;
enum target_prot_type hw_pi_prot_type;
int enforce_pr_isids;
+ int force_pr_aptpl;
int is_nonrot;
int emulate_rest_reord;
u32 hw_block_size;
--
cgit v1.2.1
From a7ee8839daf21c4a3ca439733e7bed25f32e7954 Mon Sep 17 00:00:00 2001
From: Denis CIOCCA <denis.ciocca@st.com>
Date: Fri, 3 Oct 2014 17:35:35 +0200
Subject: iio:imu: changed structure name from st_sensors to st_sensor_settings
This patch change structure name and related variables names.
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
include/linux/iio/common/st_sensors.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index d8257ab60bac..2c476acb87d9 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -164,7 +164,7 @@ struct st_sensor_transfer_function {
};
/**
- * struct st_sensors - ST sensors list
+ * struct st_sensor_settings - ST specific sensor settings
* @wai: Contents of WhoAmI register.
* @sensors_supported: List of supported sensors by struct itself.
* @ch: IIO channels for the sensor.
@@ -177,7 +177,7 @@ struct st_sensor_transfer_function {
* @multi_read_bit: Use or not particular bit for [I2C/SPI] multi-read.
* @bootime: samples to discard when sensor passing from power-down to power-up.
*/
-struct st_sensors {
+struct st_sensor_settings {
u8 wai;
char sensors_supported[ST_SENSORS_MAX_4WAI][ST_SENSORS_MAX_NAME];
struct iio_chan_spec *ch;
@@ -196,7 +196,7 @@ struct st_sensors {
* struct st_sensor_data - ST sensor device status
* @dev: Pointer to instance of struct device (I2C or SPI).
* @trig: The trigger in use by the core driver.
- * @sensor: Pointer to the current sensor struct in use.
+ * @sensor_settings: Pointer to the specific sensor settings in use.
* @current_fullscale: Maximum range of measure by the sensor.
* @vdd: Pointer to sensor's Vdd power supply
* @vdd_io: Pointer to sensor's Vdd-IO power supply
@@ -213,7 +213,7 @@ struct st_sensors {
struct st_sensor_data {
struct device *dev;
struct iio_trigger *trig;
- struct st_sensors *sensor;
+ struct st_sensor_settings *sensor_settings;
struct st_sensor_fullscale_avl *current_fullscale;
struct regulator *vdd;
struct regulator *vdd_io;
@@ -279,7 +279,7 @@ int st_sensors_read_info_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *ch, int *val);
int st_sensors_check_device_support(struct iio_dev *indio_dev,
- int num_sensors_list, const struct st_sensors *sensors);
+ int num_sensors_list, const struct st_sensor_settings *sensor_settings);
ssize_t st_sensors_sysfs_sampling_frequency_avail(struct device *dev,
struct device_attribute *attr, char *buf);
--
cgit v1.2.1
From 7941b27b16e3282f6ec8817e36492f1deec753a7 Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Date: Fri, 4 Jul 2014 19:59:20 +0300
Subject: of: Introduce Device Tree resolve support.
Introduce support for dynamic device tree resolution.
Using it, it is possible to prepare a device tree that's
been loaded on runtime to be modified and inserted at the kernel
live tree.
Export of of_resolve and bug fix of double free by
Guenter Roeck <groeck@juniper.net>
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
[grant.likely: Don't need to select CONFIG_OF_DYNAMIC and CONFIG_OF_DEVICE]
[grant.likely: Don't need to depend on OF or !SPARC]
[grant.likely: Factor out duplicate code blocks into single function]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 6c4363b8ddc3..6545e7aec7bb 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -863,4 +863,7 @@ static inline int of_changeset_update_property(struct of_changeset *ocs,
}
#endif
+/* CONFIG_OF_RESOLVE api */
+extern int of_resolve_phandles(struct device_node *tree);
+
#endif /* _LINUX_OF_H */
--
cgit v1.2.1
From c8753d55afb436fd6a25c8bbe8d783f6dcf1c9f8 Mon Sep 17 00:00:00 2001
From: Vijay Subramanian <subramanian.vijay@gmail.com>
Date: Thu, 2 Oct 2014 10:00:43 -0700
Subject: net: Cleanup skb cloning by adding SKB_FCLONE_FREE
SKB_FCLONE_UNAVAILABLE has overloaded meaning depending on type of skb.
1: If skb is allocated from head_cache, it indicates fclone is not available.
2: If skb is a companion fclone skb (allocated from fclone_cache), it indicates
it is available to be used.
To avoid confusion for case 2 above, this patch replaces
SKB_FCLONE_UNAVAILABLE with SKB_FCLONE_FREE where appropriate. For fclone
companion skbs, this indicates it is free for use.
SKB_FCLONE_UNAVAILABLE will now simply indicate skb is from head_cache and
cannot / will not have a companion fclone.
Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 7c5036d11feb..3a5ec7638627 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -339,9 +339,10 @@ struct skb_shared_info {
enum {
- SKB_FCLONE_UNAVAILABLE,
- SKB_FCLONE_ORIG,
- SKB_FCLONE_CLONE,
+ SKB_FCLONE_UNAVAILABLE, /* skb has no fclone (from head_cache) */
+ SKB_FCLONE_ORIG, /* orig skb (from fclone_cache) */
+ SKB_FCLONE_CLONE, /* companion fclone skb (from fclone_cache) */
+ SKB_FCLONE_FREE, /* this companion fclone skb is available */
};
enum {
--
cgit v1.2.1
From dd3619f2ed5bd5ffce90f4fd8361ccd46d59b9b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Barr=C3=A9?= <sebastien.barre@uclouvain.be>
Date: Thu, 2 Oct 2014 21:15:22 +0200
Subject: Removed unused inet6 address state
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
the inet6 state INET6_IFADDR_STATE_UP only appeared in its definition.
Cc: Christoph Paasch <christoph.paasch@uclouvain.be>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sébastien Barré <sebastien.barre@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/if_inet6.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index d07b1a64b4e7..55a8d4056cc9 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -35,7 +35,6 @@ enum {
INET6_IFADDR_STATE_DAD,
INET6_IFADDR_STATE_POSTDAD,
INET6_IFADDR_STATE_ERRDAD,
- INET6_IFADDR_STATE_UP,
INET6_IFADDR_STATE_DEAD,
};
--
cgit v1.2.1
From 86f1152b117a404229fd6f08ec3faca779f37b92 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Wed, 13 Aug 2014 13:53:43 -0500
Subject: dm: allow active and inactive tables to share dm_devs
Until this change, when loading a new DM table, DM core would re-open
all of the devices in the DM table. Now, DM core will avoid redundant
device opens (and closes when destroying the old table) if the old
table already has a device open using the same mode. This is achieved
by managing reference counts on the table_devices that DM core now
stores in the mapped_device structure (rather than in the dm_table
structure). So a mapped_device's active and inactive dm_tables' dm_dev
lists now just point to the dm_devs stored in the mapped_device's
table_devices list.
This improvement in DM core's device reference counting has the
side-effect of fixing a long-standing limitation of the multipath
target: a DM multipath table couldn't include any paths that were unusable
(failed). For example: if all paths have failed and you add a new,
working, path to the table; you can't use it since the table load would
fail due to it still containing failed paths. Now a re-load of a
multipath table can include failed devices and when those devices become
active again they can be used instantly.
The device list code in dm.c isn't a straight copy/paste from the code in
dm-table.c, but it's very close (aside from some variable renames). One
subtle difference is that find_table_device for the tables_devices list
will only match devices with the same name and mode. This is because we
don't want to upgrade a device's mode in the active table when an
inactive table is loaded.
Access to the mapped_device structure's tables_devices list requires a
mutex (tables_devices_lock), so that tables cannot be created and
destroyed concurrently.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
include/uapi/linux/dm-ioctl.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
index c8a4302093a3..3315ab21f728 100644
--- a/include/uapi/linux/dm-ioctl.h
+++ b/include/uapi/linux/dm-ioctl.h
@@ -267,9 +267,9 @@ enum {
#define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
#define DM_VERSION_MAJOR 4
-#define DM_VERSION_MINOR 27
+#define DM_VERSION_MINOR 28
#define DM_VERSION_PATCHLEVEL 0
-#define DM_VERSION_EXTRA "-ioctl (2013-10-30)"
+#define DM_VERSION_EXTRA "-ioctl (2014-09-17)"
/* Status bits */
#define DM_READONLY_FLAG (1 << 0) /* In/Out */
--
cgit v1.2.1
From bdf6fa52f01b941d4a80372d56de465bdbbd1d23 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevich@gmail.com>
Date: Fri, 3 Oct 2014 18:16:20 -0400
Subject: sctp: handle association restarts when the socket is closed.
Currently association restarts do not take into consideration the
state of the socket. When a restart happens, the current assocation
simply transitions into established state. This creates a condition
where a remote system, through a the restart procedure, may create a
local association that is no way reachable by user. The conditions
to trigger this are as follows:
1) Remote does not acknoledge some data causing data to remain
outstanding.
2) Local application calls close() on the socket. Since data
is still outstanding, the association is placed in SHUTDOWN_PENDING
state. However, the socket is closed.
3) The remote tries to create a new association, triggering a restart
on the local system. The association moves from SHUTDOWN_PENDING
to ESTABLISHED. At this point, it is no longer reachable by
any socket on the local system.
This patch addresses the above situation by moving the newly ESTABLISHED
association into SHUTDOWN-SENT state and bundling a SHUTDOWN after
the COOKIE-ACK chunk. This way, the restarted associate immidiately
enters the shutdown procedure and forces the termination of the
unreachable association.
Reported-by: David Laight <David.Laight@aculab.com>
Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sctp/command.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h
index f22538e68245..d4a20d00461c 100644
--- a/include/net/sctp/command.h
+++ b/include/net/sctp/command.h
@@ -115,7 +115,7 @@ typedef enum {
* analysis of the state functions, but in reality just taken from
* thin air in the hopes othat we don't trigger a kernel panic.
*/
-#define SCTP_MAX_NUM_COMMANDS 14
+#define SCTP_MAX_NUM_COMMANDS 20
typedef union {
void *zero_all; /* Set to NULL to clear the entire union */
--
cgit v1.2.1
From 0b5e8b8eeae40bae6ad7c7e91c97c3c0d0e57882 Mon Sep 17 00:00:00 2001
From: Andy Zhou <azhou@nicira.com>
Date: Fri, 3 Oct 2014 15:35:28 -0700
Subject: net: Add Geneve tunneling protocol driver
This adds a device level support for Geneve -- Generic Network
Virtualization Encapsulation. The protocol is documented at
http://tools.ietf.org/html/draft-gross-geneve-01
Only protocol layer Geneve support is provided by this driver.
Openvswitch can be used for configuring, set up and tear down
functional Geneve tunnels.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/geneve.h | 91 ++++++++++++++++++++++++++++++++++++++++++++++++
include/net/ip_tunnels.h | 2 ++
2 files changed, 93 insertions(+)
create mode 100644 include/net/geneve.h
(limited to 'include')
diff --git a/include/net/geneve.h b/include/net/geneve.h
new file mode 100644
index 000000000000..ce98865318bf
--- /dev/null
+++ b/include/net/geneve.h
@@ -0,0 +1,91 @@
+#ifndef __NET_GENEVE_H
+#define __NET_GENEVE_H 1
+
+#include <net/udp_tunnel.h>
+
+struct geneve_sock;
+
+typedef void (geneve_rcv_t)(struct geneve_sock *gs, struct sk_buff *skb);
+
+struct geneve_sock {
+ struct hlist_node hlist;
+ geneve_rcv_t *rcv;
+ void *rcv_data;
+ struct work_struct del_work;
+ struct socket *sock;
+ struct rcu_head rcu;
+ atomic_t refcnt;
+ struct udp_offload udp_offloads;
+};
+
+/* Geneve Header:
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |Ver| Opt Len |O|C| Rsvd. | Protocol Type |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Virtual Network Identifier (VNI) | Reserved |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Variable Length Options |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ * Option Header:
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Option Class | Type |R|R|R| Length |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Variable Option Data |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+struct geneve_opt {
+ __be16 opt_class;
+ u8 type;
+#ifdef __LITTLE_ENDIAN_BITFIELD
+ u8 length:5;
+ u8 r3:1;
+ u8 r2:1;
+ u8 r1:1;
+#else
+ u8 r1:1;
+ u8 r2:1;
+ u8 r3:1;
+ u8 length:5;
+#endif
+ u8 opt_data[];
+};
+
+#define GENEVE_CRIT_OPT_TYPE (1 << 7)
+
+struct genevehdr {
+#ifdef __LITTLE_ENDIAN_BITFIELD
+ u8 opt_len:6;
+ u8 ver:2;
+ u8 rsvd1:6;
+ u8 critical:1;
+ u8 oam:1;
+#else
+ u8 ver:2;
+ u8 opt_len:6;
+ u8 oam:1;
+ u8 critical:1;
+ u8 rsvd1:6;
+#endif
+ __be16 proto_type;
+ u8 vni[3];
+ u8 rsvd2;
+ struct geneve_opt options[];
+};
+
+#define GENEVE_VER 0
+#define GENEVE_BASE_HLEN (sizeof(struct udphdr) + sizeof(struct genevehdr))
+
+struct geneve_sock *geneve_sock_add(struct net *net, __be16 port,
+ geneve_rcv_t *rcv, void *data,
+ bool no_share, bool ipv6);
+
+void geneve_sock_release(struct geneve_sock *vs);
+
+int geneve_xmit_skb(struct geneve_sock *gs, struct rtable *rt,
+ struct sk_buff *skb, __be32 src, __be32 dst, __u8 tos,
+ __u8 ttl, __be16 df, __be16 src_port, __be16 dst_port,
+ __be16 tun_flags, u8 vni[3], u8 opt_len, u8 *opt,
+ bool xnet);
+#endif
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 7f538ba6e267..a9ce1556d773 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -95,6 +95,8 @@ struct ip_tunnel {
#define TUNNEL_VERSION __cpu_to_be16(0x40)
#define TUNNEL_NO_KEY __cpu_to_be16(0x80)
#define TUNNEL_DONT_FRAGMENT __cpu_to_be16(0x0100)
+#define TUNNEL_OAM __cpu_to_be16(0x0200)
+#define TUNNEL_CRIT_OPT __cpu_to_be16(0x0400)
struct tnl_ptk_info {
__be16 flags;
--
cgit v1.2.1
From 67fa034194bf82a3d5ca841759d921297daa63ca Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Fri, 3 Oct 2014 15:35:30 -0700
Subject: openvswitch: Add support for matching on OAM packets.
Some tunnel formats have mechanisms for indicating that packets are
OAM frames that should be handled specially (either as high priority or
not forwarded beyond an endpoint). This provides support for allowing
those types of packets to be matched.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/openvswitch.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index f7fc507d82ab..7c06106f5af5 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -309,6 +309,7 @@ enum ovs_tunnel_key_attr {
OVS_TUNNEL_KEY_ATTR_TTL, /* u8 Tunnel IP TTL. */
OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
+ OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */
__OVS_TUNNEL_KEY_ATTR_MAX
};
--
cgit v1.2.1
From f0b128c1e2cc33ad104daf0f51a51e34f7763c5f Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Fri, 3 Oct 2014 15:35:31 -0700
Subject: openvswitch: Wrap struct ovs_key_ipv4_tunnel in a new structure.
Currently, the flow information that is matched for tunnels and
the tunnel data passed around with packets is the same. However,
as additional information is added this is not necessarily desirable,
as in the case of pointers.
This adds a new structure for tunnel metadata which currently contains
only the existing struct. This change is purely internal to the kernel
since the current OVS_KEY_ATTR_IPV4_TUNNEL is simply a compressed version
of OVS_KEY_ATTR_TUNNEL that is translated at flow setup.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/openvswitch.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 7c06106f5af5..6753032832e2 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -294,7 +294,7 @@ enum ovs_key_attr {
OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
#ifdef __KERNEL__
- OVS_KEY_ATTR_IPV4_TUNNEL, /* struct ovs_key_ipv4_tunnel */
+ OVS_KEY_ATTR_TUNNEL_INFO, /* struct ovs_tunnel_info */
#endif
__OVS_KEY_ATTR_MAX
};
--
cgit v1.2.1
From f5796684069e0c71c65bce6a6d4766114aec1396 Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Fri, 3 Oct 2014 15:35:33 -0700
Subject: openvswitch: Add support for Geneve tunneling.
The Openvswitch implementation is completely agnostic to the options
that are in use and can handle newly defined options without
further work. It does this by simply matching on a byte array
of options and allowing userspace to setup flows on this array.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Singed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip_tunnels.h | 21 +++++++++++----------
include/uapi/linux/openvswitch.h | 2 ++
2 files changed, 13 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index a9ce1556d773..5bc6edeb7143 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -86,17 +86,18 @@ struct ip_tunnel {
struct gro_cells gro_cells;
};
-#define TUNNEL_CSUM __cpu_to_be16(0x01)
-#define TUNNEL_ROUTING __cpu_to_be16(0x02)
-#define TUNNEL_KEY __cpu_to_be16(0x04)
-#define TUNNEL_SEQ __cpu_to_be16(0x08)
-#define TUNNEL_STRICT __cpu_to_be16(0x10)
-#define TUNNEL_REC __cpu_to_be16(0x20)
-#define TUNNEL_VERSION __cpu_to_be16(0x40)
-#define TUNNEL_NO_KEY __cpu_to_be16(0x80)
+#define TUNNEL_CSUM __cpu_to_be16(0x01)
+#define TUNNEL_ROUTING __cpu_to_be16(0x02)
+#define TUNNEL_KEY __cpu_to_be16(0x04)
+#define TUNNEL_SEQ __cpu_to_be16(0x08)
+#define TUNNEL_STRICT __cpu_to_be16(0x10)
+#define TUNNEL_REC __cpu_to_be16(0x20)
+#define TUNNEL_VERSION __cpu_to_be16(0x40)
+#define TUNNEL_NO_KEY __cpu_to_be16(0x80)
#define TUNNEL_DONT_FRAGMENT __cpu_to_be16(0x0100)
-#define TUNNEL_OAM __cpu_to_be16(0x0200)
-#define TUNNEL_CRIT_OPT __cpu_to_be16(0x0400)
+#define TUNNEL_OAM __cpu_to_be16(0x0200)
+#define TUNNEL_CRIT_OPT __cpu_to_be16(0x0400)
+#define TUNNEL_OPTIONS_PRESENT __cpu_to_be16(0x0800)
struct tnl_ptk_info {
__be16 flags;
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 6753032832e2..435eabc5ffaa 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -192,6 +192,7 @@ enum ovs_vport_type {
OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
OVS_VPORT_TYPE_GRE, /* GRE tunnel. */
OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel. */
+ OVS_VPORT_TYPE_GENEVE, /* Geneve tunnel. */
__OVS_VPORT_TYPE_MAX
};
@@ -310,6 +311,7 @@ enum ovs_tunnel_key_attr {
OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */
+ OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */
__OVS_TUNNEL_KEY_ATTR_MAX
};
--
cgit v1.2.1
From f2600cf02b5b59aaee082c3485b7f01fc7f7b70c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 4 Oct 2014 10:11:31 -0700
Subject: net: sched: avoid costly atomic operation in fq_dequeue()
Standard qdisc API to setup a timer implies an atomic operation on every
packet dequeue : qdisc_unthrottled()
It turns out this is not really needed for FQ, as FQ has no concept of
global qdisc throttling, being a qdisc handling many different flows,
some of them can be throttled, while others are not.
Fix is straightforward : add a 'bool throttle' to
qdisc_watchdog_schedule_ns(), and remove calls to qdisc_unthrottled()
in sch_fq.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/pkt_sched.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index e4b3c828c1c2..27a33833ff4a 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -65,12 +65,12 @@ struct qdisc_watchdog {
};
void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc);
-void qdisc_watchdog_schedule_ns(struct qdisc_watchdog *wd, u64 expires);
+void qdisc_watchdog_schedule_ns(struct qdisc_watchdog *wd, u64 expires, bool throttle);
static inline void qdisc_watchdog_schedule(struct qdisc_watchdog *wd,
psched_time_t expires)
{
- qdisc_watchdog_schedule_ns(wd, PSCHED_TICKS2NS(expires));
+ qdisc_watchdog_schedule_ns(wd, PSCHED_TICKS2NS(expires), true);
}
void qdisc_watchdog_cancel(struct qdisc_watchdog *wd);
--
cgit v1.2.1
From 7dfa4b414d4eec8da56e44fb2b4aea3e549b092f Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 5 Oct 2014 12:35:09 +0300
Subject: net/mlx4_en: Code cleanups in tx path
- Remove unused variable ring->poll_cnt
- No need to set some fields if using blueflame
- Add missing const's
- Use unlikely
- Remove unneeded new line
- Make some comments more precise
- struct mlx4_bf @offset field reduced to unsigned int to save space
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index b2f8ab9a57c4..37e4404d0227 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -583,7 +583,7 @@ struct mlx4_uar {
};
struct mlx4_bf {
- unsigned long offset;
+ unsigned int offset;
int buf_size;
struct mlx4_uar *uar;
void __iomem *reg;
--
cgit v1.2.1
From 1255a5055449781a92076fc5429952f2b33cf309 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 5 Oct 2014 12:35:21 +0300
Subject: ethtool: Ethtool parameter to dynamically change tx_copybreak
Use new ethtool [sg]et_tunable() to set tx_copybread (inline threshold)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/ethtool.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 7a364f2f3d3f..99b43056a6fe 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -212,6 +212,7 @@ struct ethtool_value {
enum tunable_id {
ETHTOOL_ID_UNSPEC,
ETHTOOL_RX_COPYBREAK,
+ ETHTOOL_TX_COPYBREAK,
};
enum tunable_type_id {
--
cgit v1.2.1
From 95afae481414cbdb0567bf82d5e5077c3ac9da20 Mon Sep 17 00:00:00 2001
From: David Vrabel <david.vrabel@citrix.com>
Date: Mon, 8 Sep 2014 17:30:41 +0100
Subject: xen: remove DEFINE_XENBUS_DRIVER() macro
The DEFINE_XENBUS_DRIVER() macro looks a bit weird and causes sparse
errors.
Replace the uses with standard structure definitions instead. This is
similar to pci and usb device registration.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
include/xen/xenbus.h | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h
index 0324c6d340c1..b78f21caf55a 100644
--- a/include/xen/xenbus.h
+++ b/include/xen/xenbus.h
@@ -86,6 +86,7 @@ struct xenbus_device_id
/* A xenbus driver. */
struct xenbus_driver {
+ const char *name; /* defaults to ids[0].devicetype */
const struct xenbus_device_id *ids;
int (*probe)(struct xenbus_device *dev,
const struct xenbus_device_id *id);
@@ -100,20 +101,22 @@ struct xenbus_driver {
int (*is_ready)(struct xenbus_device *dev);
};
-#define DEFINE_XENBUS_DRIVER(var, drvname, methods...) \
-struct xenbus_driver var ## _driver = { \
- .driver.name = drvname + 0 ?: var ## _ids->devicetype, \
- .driver.owner = THIS_MODULE, \
- .ids = var ## _ids, ## methods \
-}
-
static inline struct xenbus_driver *to_xenbus_driver(struct device_driver *drv)
{
return container_of(drv, struct xenbus_driver, driver);
}
-int __must_check xenbus_register_frontend(struct xenbus_driver *);
-int __must_check xenbus_register_backend(struct xenbus_driver *);
+int __must_check __xenbus_register_frontend(struct xenbus_driver *drv,
+ struct module *owner,
+ const char *mod_name);
+int __must_check __xenbus_register_backend(struct xenbus_driver *drv,
+ struct module *owner,
+ const char *mod_name);
+
+#define xenbus_register_frontend(drv) \
+ __xenbus_register_frontend(drv, THIS_MODULE, KBUILD_MODNAME);
+#define xenbus_register_backend(drv) \
+ __xenbus_register_backend(drv, THIS_MODULE, KBUILD_MODNAME);
void xenbus_unregister_driver(struct xenbus_driver *drv);
--
cgit v1.2.1
From f1b731dbc2530cab93fcfc5fcb18c9f3a100feeb Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Mon, 6 Oct 2014 15:21:05 +0100
Subject: KEYS: Restore partial ID matching functionality for asymmetric keys
Bring back the functionality whereby an asymmetric key can be matched with a
partial match on one of its IDs.
Whilst we're at it, allow for the possibility of having an increased number of
IDs.
Reported-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
include/crypto/public_key.h | 3 ++-
include/keys/asymmetric-type.h | 3 +++
2 files changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index fa73a6fd536c..54add2069901 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -101,6 +101,7 @@ extern int verify_signature(const struct key *key,
struct asymmetric_key_id;
extern struct key *x509_request_asymmetric_key(struct key *keyring,
- const struct asymmetric_key_id *kid);
+ const struct asymmetric_key_id *kid,
+ bool partial);
#endif /* _LINUX_PUBLIC_KEY_H */
diff --git a/include/keys/asymmetric-type.h b/include/keys/asymmetric-type.h
index 044ab0d3aa45..c0754abb2f56 100644
--- a/include/keys/asymmetric-type.h
+++ b/include/keys/asymmetric-type.h
@@ -51,6 +51,9 @@ struct asymmetric_key_ids {
extern bool asymmetric_key_id_same(const struct asymmetric_key_id *kid1,
const struct asymmetric_key_id *kid2);
+extern bool asymmetric_key_id_partial(const struct asymmetric_key_id *kid1,
+ const struct asymmetric_key_id *kid2);
+
extern struct asymmetric_key_id *asymmetric_key_generate_id(const void *val_1,
size_t len_1,
const void *val_2,
--
cgit v1.2.1
From a6551a76fff15056fde2342d0f7de41ee605264e Mon Sep 17 00:00:00 2001
From: Andrew Bresticker <abrestic@chromium.org>
Date: Thu, 18 Sep 2014 17:18:56 +0200
Subject: mfd: cros_ec: stop calling ->cmd_xfer() directly
Instead of having users of the ChromeOS EC call the interface-specific
cmd_xfer() callback directly, introduce a central cros_ec_cmd_xfer()
to use instead. This will allow us to put all the locking and retry
logic in one place instead of duplicating it across the different
drivers.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/cros_ec.h | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h
index fcbe9d129a9d..0e166b92f5b4 100644
--- a/include/linux/mfd/cros_ec.h
+++ b/include/linux/mfd/cros_ec.h
@@ -62,10 +62,6 @@ struct cros_ec_command {
* @dev: Device pointer
* @was_wake_device: true if this device was set to wake the system from
* sleep at the last suspend
- * @cmd_xfer: send command to EC and get response
- * Returns the number of bytes received if the communication succeeded, but
- * that doesn't mean the EC was happy with the command. The caller
- * should check msg.result for the EC's result code.
*
* @priv: Private data
* @irq: Interrupt to use
@@ -82,6 +78,10 @@ struct cros_ec_command {
* @dout_size: size of dout buffer to allocate (zero to use static dout)
* @parent: pointer to parent device (e.g. i2c or spi device)
* @wake_enabled: true if this device can wake the system from sleep
+ * @cmd_xfer: send command to EC and get response
+ * Returns the number of bytes received if the communication succeeded, but
+ * that doesn't mean the EC was happy with the command. The caller
+ * should check msg.result for the EC's result code.
* @lock: one transaction at a time
*/
struct cros_ec_device {
@@ -92,8 +92,6 @@ struct cros_ec_device {
struct device *dev;
bool was_wake_device;
struct class *cros_class;
- int (*cmd_xfer)(struct cros_ec_device *ec,
- struct cros_ec_command *msg);
/* These are used to implement the platform-specific interface */
void *priv;
@@ -104,6 +102,8 @@ struct cros_ec_device {
int dout_size;
struct device *parent;
bool wake_enabled;
+ int (*cmd_xfer)(struct cros_ec_device *ec,
+ struct cros_ec_command *msg);
struct mutex lock;
};
@@ -152,6 +152,18 @@ int cros_ec_prepare_tx(struct cros_ec_device *ec_dev,
int cros_ec_check_result(struct cros_ec_device *ec_dev,
struct cros_ec_command *msg);
+/**
+ * cros_ec_cmd_xfer - Send a command to the ChromeOS EC
+ *
+ * Call this to send a command to the ChromeOS EC. This should be used
+ * instead of calling the EC's cmd_xfer() callback directly.
+ *
+ * @ec_dev: EC device
+ * @msg: Message to write
+ */
+int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
+ struct cros_ec_command *msg);
+
/**
* cros_ec_remove - Remove a ChromeOS EC
*
--
cgit v1.2.1
From fcbeb976d7ce783fd58e63e61c196d9a8912b3be Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 5 Oct 2014 10:11:27 -0700
Subject: net: introduce netdevice gso_min_segs attribute
Some TSO engines might have a too heavy setup cost, that impacts
performance on hosts sending small bursts (2 MSS per packet).
This patch adds a device gso_min_segs, allowing drivers to set
a minimum segment size for TSO packets, according to the NIC
performance.
Tested on a mlx4 NIC, this allows to get a ~110% increase of
throughput when sending 2 MSS per packet.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 22d54b9b700d..2df86f50261c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1416,6 +1416,8 @@ enum netdev_priv_flags {
* @gso_max_size: Maximum size of generic segmentation offload
* @gso_max_segs: Maximum number of segments that can be passed to the
* NIC for GSO
+ * @gso_min_segs: Minimum number of segments that can be passed to the
+ * NIC for GSO
*
* @dcbnl_ops: Data Center Bridging netlink ops
* @num_tc: Number of traffic classes in the net device
@@ -1666,7 +1668,7 @@ struct net_device {
unsigned int gso_max_size;
#define GSO_MAX_SEGS 65535
u16 gso_max_segs;
-
+ u16 gso_min_segs;
#ifdef CONFIG_DCB
const struct dcbnl_rtnl_ops *dcbnl_ops;
#endif
--
cgit v1.2.1
From 82a470f1119eb7d2e4941b915bf9cd6fd8d54494 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Sun, 5 Oct 2014 21:27:53 -0700
Subject: net: sched: remove tcf_proto from ematch calls
This removes the tcf_proto argument from the ematch code paths that
only need it to reference the net namespace. This allows simplifying
qdisc code paths especially when we need to tear down the ematch
from an RCU callback. In this case we can not guarentee that the
tcf_proto structure is still valid.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/pkt_cls.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index ef44ad9a6426..bc49967e1a68 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -166,6 +166,7 @@ struct tcf_ematch {
unsigned int datalen;
u16 matchid;
u16 flags;
+ struct net *net;
};
static inline int tcf_em_is_container(struct tcf_ematch *em)
@@ -229,12 +230,11 @@ struct tcf_ematch_tree {
struct tcf_ematch_ops {
int kind;
int datalen;
- int (*change)(struct tcf_proto *, void *,
+ int (*change)(struct net *net, void *,
int, struct tcf_ematch *);
int (*match)(struct sk_buff *, struct tcf_ematch *,
struct tcf_pkt_info *);
- void (*destroy)(struct tcf_proto *,
- struct tcf_ematch *);
+ void (*destroy)(struct tcf_ematch *);
int (*dump)(struct sk_buff *, struct tcf_ematch *);
struct module *owner;
struct list_head link;
@@ -244,7 +244,7 @@ int tcf_em_register(struct tcf_ematch_ops *);
void tcf_em_unregister(struct tcf_ematch_ops *);
int tcf_em_tree_validate(struct tcf_proto *, struct nlattr *,
struct tcf_ematch_tree *);
-void tcf_em_tree_destroy(struct tcf_proto *, struct tcf_ematch_tree *);
+void tcf_em_tree_destroy(struct tcf_ematch_tree *);
int tcf_em_tree_dump(struct sk_buff *, struct tcf_ematch_tree *, int);
int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *,
struct tcf_pkt_info *);
@@ -301,7 +301,7 @@ struct tcf_ematch_tree {
};
#define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0)
-#define tcf_em_tree_destroy(tp, t) do { (void)(t); } while(0)
+#define tcf_em_tree_destroy(t) do { (void)(t); } while(0)
#define tcf_em_tree_dump(skb, t, tlv) (0)
#define tcf_em_tree_change(tp, dst, src) do { } while(0)
#define tcf_em_tree_match(skb, t, info) ((void)(info), 1)
--
cgit v1.2.1
From 94b2cfe02bfe3f1918d91bd6f498e308c5605cbc Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 6 Oct 2014 19:58:34 +0200
Subject: ipv6: minor fib6 cleanups like type safety, bool conversion, inline
removal
Also renamed struct fib6_walker_t to fib6_walker and enum fib_walk_state_t
to fib6_walk_state as recommended by Cong Wang.
Cc: Cong Wang <cwang@twopensource.com>
Cc: YOSHIFUJI Hideaki <hideaki@yoshifuji.org>
Cc: Martin Lau <kafai@fb.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip6_fib.h | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index cf485f9aa563..9221bf4c64f7 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -202,15 +202,25 @@ static inline void ip6_rt_put(struct rt6_info *rt)
dst_release(&rt->dst);
}
-struct fib6_walker_t {
+enum fib6_walk_state {
+#ifdef CONFIG_IPV6_SUBTREES
+ FWS_S,
+#endif
+ FWS_L,
+ FWS_R,
+ FWS_C,
+ FWS_U
+};
+
+struct fib6_walker {
struct list_head lh;
struct fib6_node *root, *node;
struct rt6_info *leaf;
- unsigned char state;
- unsigned char prune;
+ enum fib6_walk_state state;
+ bool prune;
unsigned int skip;
unsigned int count;
- int (*func)(struct fib6_walker_t *);
+ int (*func)(struct fib6_walker *);
void *args;
};
--
cgit v1.2.1
From 42b18706469a02c1f84375ac0ee2f30f28d85d4c Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 6 Oct 2014 19:58:35 +0200
Subject: ipv6: make rt_sernum atomic and serial number fields ordinary ints
Cc: YOSHIFUJI Hideaki <hideaki@yoshifuji.org>
Cc: Martin Lau <kafai@fb.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip6_fib.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 9221bf4c64f7..8eea35d32a75 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -64,7 +64,7 @@ struct fib6_node {
__u16 fn_bit; /* bit key */
__u16 fn_flags;
- __u32 fn_sernum;
+ int fn_sernum;
struct rt6_info *rr_ptr;
};
--
cgit v1.2.1
From 812918c464eca0e8c145f975932ca5020e9c05cb Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 6 Oct 2014 19:58:37 +0200
Subject: ipv6: make fib6 serial number per namespace
Try to reduce number of possible fn_sernum mutation by constraining them
to their namespace.
Also remove rt_genid which I forgot to remove in 705f1c869d577c ("ipv6:
remove rt6i_genid").
Cc: YOSHIFUJI Hideaki <hideaki@yoshifuji.org>
Cc: Martin Lau <kafai@fb.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/netns/ipv6.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index eade27adecf3..69ae41f2098c 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -76,7 +76,7 @@ struct netns_ipv6 {
#endif
#endif
atomic_t dev_addr_genid;
- atomic_t rt_genid;
+ atomic_t fib6_sernum;
};
#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
--
cgit v1.2.1
From 7c5df8fa1921450d2210db9928f43cf4f414982c Mon Sep 17 00:00:00 2001
From: Andy Zhou <azhou@nicira.com>
Date: Mon, 6 Oct 2014 15:15:14 -0700
Subject: openvswitch: fix a compilation error when CONFIG_INET is not setW!
Fix a openvswitch compilation error when CONFIG_INET is not set:
=====================================================
In file included from include/net/geneve.h:4:0,
from net/openvswitch/flow_netlink.c:45:
include/net/udp_tunnel.h: In function 'udp_tunnel_handle_offloads':
>> include/net/udp_tunnel.h:100:2: error: implicit declaration of function 'iptunnel_handle_offloads' [-Werror=implicit-function-declaration]
>> return iptunnel_handle_offloads(skb, udp_csum, type);
>> ^
>> >> include/net/udp_tunnel.h:100:2: warning: return makes pointer from integer without a cast
>> >> cc1: some warnings being treated as errors
=====================================================
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/geneve.h | 36 +++++++++++++++++++++---------------
1 file changed, 21 insertions(+), 15 deletions(-)
(limited to 'include')
diff --git a/include/net/geneve.h b/include/net/geneve.h
index ce98865318bf..112132cf8e2e 100644
--- a/include/net/geneve.h
+++ b/include/net/geneve.h
@@ -1,22 +1,10 @@
#ifndef __NET_GENEVE_H
#define __NET_GENEVE_H 1
+#ifdef CONFIG_INET
#include <net/udp_tunnel.h>
+#endif
-struct geneve_sock;
-
-typedef void (geneve_rcv_t)(struct geneve_sock *gs, struct sk_buff *skb);
-
-struct geneve_sock {
- struct hlist_node hlist;
- geneve_rcv_t *rcv;
- void *rcv_data;
- struct work_struct del_work;
- struct socket *sock;
- struct rcu_head rcu;
- atomic_t refcnt;
- struct udp_offload udp_offloads;
-};
/* Geneve Header:
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
@@ -74,6 +62,22 @@ struct genevehdr {
struct geneve_opt options[];
};
+#ifdef CONFIG_INET
+struct geneve_sock;
+
+typedef void (geneve_rcv_t)(struct geneve_sock *gs, struct sk_buff *skb);
+
+struct geneve_sock {
+ struct hlist_node hlist;
+ geneve_rcv_t *rcv;
+ void *rcv_data;
+ struct work_struct del_work;
+ struct socket *sock;
+ struct rcu_head rcu;
+ atomic_t refcnt;
+ struct udp_offload udp_offloads;
+};
+
#define GENEVE_VER 0
#define GENEVE_BASE_HLEN (sizeof(struct udphdr) + sizeof(struct genevehdr))
@@ -88,4 +92,6 @@ int geneve_xmit_skb(struct geneve_sock *gs, struct rtable *rt,
__u8 ttl, __be16 df, __be16 src_port, __be16 dst_port,
__be16 tun_flags, u8 vni[3], u8 opt_len, u8 *opt,
bool xnet);
-#endif
+#endif /*ifdef CONFIG_INET */
+
+#endif /*ifdef__NET_GENEVE_H */
--
cgit v1.2.1
From 422b67e0b31a0ed132f8091b6f3d5465d9df9387 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 6 Oct 2014 15:03:57 +0300
Subject: videomode: provide dummy inline functions for !CONFIG_OF
If CONFIG_OF is disabled but we build any driver that tries to
use of_get_display_timing, we get this link error:
ERROR: "of_get_display_timing" [drivers/gpu/drm/rcar-du/rcar-du-drm.ko] undefined!
This adds an empty inline function as an alternative, to avoid changing
each driver using this function when we want to build them without
CONFIG_OF.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
include/video/of_display_timing.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/video/of_display_timing.h b/include/video/of_display_timing.h
index 79e6697af6cf..ea755b5616d8 100644
--- a/include/video/of_display_timing.h
+++ b/include/video/of_display_timing.h
@@ -15,9 +15,25 @@ struct display_timings;
#define OF_USE_NATIVE_MODE -1
+#ifdef CONFIG_OF
int of_get_display_timing(struct device_node *np, const char *name,
struct display_timing *dt);
struct display_timings *of_get_display_timings(struct device_node *np);
int of_display_timings_exist(struct device_node *np);
+#else
+static inline int of_get_display_timing(struct device_node *np, const char *name,
+ struct display_timing *dt)
+{
+ return -ENOSYS;
+}
+static inline struct display_timings *of_get_display_timings(struct device_node *np)
+{
+ return NULL;
+}
+static inline int of_display_timings_exist(struct device_node *np)
+{
+ return -ENOSYS;
+}
+#endif
#endif
--
cgit v1.2.1
From af7e9069543aabd415d7c543f3f89b143ac1a932 Mon Sep 17 00:00:00 2001
From: Jacob Pan <jacob.jun.pan@linux.intel.com>
Date: Mon, 6 Oct 2014 21:17:14 -0700
Subject: mfd: axp20x: Extend axp20x to support axp288 pmic
X-Powers AXP288 is a customized PMIC for Intel Baytrail-CR platforms. Similar
to AXP202/209, AXP288 comes with USB charger, more LDO and BUCK channels, and
AD converters. It also provides extended status and interrupt reporting
capabilities than the devices currently supported in axp20x.c.
In addition to feature extension, this patch also adds ACPI binding for
enumeration.
This consolidated driver should support more X-Powers' PMICs in both device
tree and ACPI enumerated platforms.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/axp20x.h | 59 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index d0e31a2287ac..81589d176ae8 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -14,6 +14,8 @@
enum {
AXP202_ID = 0,
AXP209_ID,
+ AXP288_ID,
+ NR_AXP20X_VARIANTS,
};
#define AXP20X_DATACACHE(m) (0x04 + (m))
@@ -49,11 +51,13 @@ enum {
#define AXP20X_IRQ3_EN 0x42
#define AXP20X_IRQ4_EN 0x43
#define AXP20X_IRQ5_EN 0x44
+#define AXP20X_IRQ6_EN 0x45
#define AXP20X_IRQ1_STATE 0x48
#define AXP20X_IRQ2_STATE 0x49
#define AXP20X_IRQ3_STATE 0x4a
#define AXP20X_IRQ4_STATE 0x4b
#define AXP20X_IRQ5_STATE 0x4c
+#define AXP20X_IRQ6_STATE 0x4d
/* ADC */
#define AXP20X_ACIN_V_ADC_H 0x56
@@ -116,6 +120,15 @@ enum {
#define AXP20X_CC_CTRL 0xb8
#define AXP20X_FG_RES 0xb9
+/* AXP288 specific registers */
+#define AXP288_PMIC_ADC_H 0x56
+#define AXP288_PMIC_ADC_L 0x57
+#define AXP288_ADC_TS_PIN_CTRL 0x84
+
+#define AXP288_PMIC_ADC_EN 0x84
+#define AXP288_FG_TUNE5 0xed
+
+
/* Regulators IDs */
enum {
AXP20X_LDO1 = 0,
@@ -169,12 +182,58 @@ enum {
AXP20X_IRQ_GPIO0_INPUT,
};
+enum axp288_irqs {
+ AXP288_IRQ_VBUS_FALL = 2,
+ AXP288_IRQ_VBUS_RISE,
+ AXP288_IRQ_OV,
+ AXP288_IRQ_FALLING_ALT,
+ AXP288_IRQ_RISING_ALT,
+ AXP288_IRQ_OV_ALT,
+ AXP288_IRQ_DONE = 10,
+ AXP288_IRQ_CHARGING,
+ AXP288_IRQ_SAFE_QUIT,
+ AXP288_IRQ_SAFE_ENTER,
+ AXP288_IRQ_ABSENT,
+ AXP288_IRQ_APPEND,
+ AXP288_IRQ_QWBTU,
+ AXP288_IRQ_WBTU,
+ AXP288_IRQ_QWBTO,
+ AXP288_IRQ_WBTO,
+ AXP288_IRQ_QCBTU,
+ AXP288_IRQ_CBTU,
+ AXP288_IRQ_QCBTO,
+ AXP288_IRQ_CBTO,
+ AXP288_IRQ_WL2,
+ AXP288_IRQ_WL1,
+ AXP288_IRQ_GPADC,
+ AXP288_IRQ_OT = 31,
+ AXP288_IRQ_GPIO0,
+ AXP288_IRQ_GPIO1,
+ AXP288_IRQ_POKO,
+ AXP288_IRQ_POKL,
+ AXP288_IRQ_POKS,
+ AXP288_IRQ_POKN,
+ AXP288_IRQ_POKP,
+ AXP288_IRQ_TIMER,
+ AXP288_IRQ_MV_CHNG,
+ AXP288_IRQ_BC_USB_CHNG,
+};
+
+#define AXP288_TS_ADC_H 0x58
+#define AXP288_TS_ADC_L 0x59
+#define AXP288_GP_ADC_H 0x5a
+#define AXP288_GP_ADC_L 0x5b
+
struct axp20x_dev {
struct device *dev;
struct i2c_client *i2c_client;
struct regmap *regmap;
struct regmap_irq_chip_data *regmap_irqc;
long variant;
+ int nr_cells;
+ struct mfd_cell *cells;
+ const struct regmap_config *regmap_cfg;
+ const struct regmap_irq_chip *regmap_irq_chip;
};
#endif /* __LINUX_MFD_AXP20X_H */
--
cgit v1.2.1
From b5e7a955a3515bf6b568050533fa9b1b72460a95 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 30 Sep 2014 13:38:20 +0200
Subject: ARM: KVM: fix vgic-disabled build
The vgic code can be disabled in Kconfig and there are dummy implementations
of most of the provided API functions for the disabled case.
However, the newly introduced kvm_vgic_destroy/kvm_vgic_vcpu_destroy
functions are lacking those dummies, resulting in this build error:
arch/arm/kvm/arm.c: In function 'kvm_arch_destroy_vm':
arch/arm/kvm/arm.c:165:2: error: implicit declaration of function 'kvm_vgic_destroy' [-Werror=implicit-function-declaration]
kvm_vgic_destroy(kvm);
^
arch/arm/kvm/arm.c: In function 'kvm_arch_vcpu_free':
arch/arm/kvm/arm.c:248:2: error: implicit declaration of function 'kvm_vgic_vcpu_destroy' [-Werror=implicit-function-declaration]
kvm_vgic_vcpu_destroy(vcpu);
^
This adds two inline helpers to get it to build again in this configuration.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: c1bfb577add ("arm/arm64: KVM: vgic: switch to dynamic allocation")
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_vgic.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 2f2aac8448a4..ec559d3264cc 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -331,6 +331,14 @@ static inline int kvm_vgic_create(struct kvm *kvm)
return 0;
}
+static inline void kvm_vgic_destroy(struct kvm *kvm)
+{
+}
+
+static inline void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
+{
+}
+
static inline int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu)
{
return 0;
--
cgit v1.2.1
From fd2ef0ba3071c92ac6272ab22ea3f2b16d88a4eb Mon Sep 17 00:00:00 2001
From: Petri Gynther <pgynther@google.com>
Date: Mon, 6 Oct 2014 11:38:30 -0700
Subject: net: phy: adjust fixed_phy_register() return value
Adjust fixed_phy_register() to return struct phy_device *, so that
it becomes easy to use fixed PHYs without device tree support:
phydev = fixed_phy_register(PHY_POLL, &fixed_phy_status, NULL);
fixed_phy_set_link_update(phydev, fixed_phy_link_update);
phy_connect_direct(netdev, phydev, handler_fn, phy_interface);
This change is a prerequisite for modifying bcmgenet driver to work
without a device tree on Broadcom's MIPS-based 7xxx platforms.
Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/phy_fixed.h | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index 941138664c1d..f2ca1b459377 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -14,9 +14,9 @@ struct device_node;
#ifdef CONFIG_FIXED_PHY
extern int fixed_phy_add(unsigned int irq, int phy_id,
struct fixed_phy_status *status);
-extern int fixed_phy_register(unsigned int irq,
- struct fixed_phy_status *status,
- struct device_node *np);
+extern struct phy_device *fixed_phy_register(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct device_node *np);
extern void fixed_phy_del(int phy_addr);
extern int fixed_phy_set_link_update(struct phy_device *phydev,
int (*link_update)(struct net_device *,
@@ -27,11 +27,11 @@ static inline int fixed_phy_add(unsigned int irq, int phy_id,
{
return -ENODEV;
}
-static inline int fixed_phy_register(unsigned int irq,
- struct fixed_phy_status *status,
- struct device_node *np)
+static inline struct phy_device *fixed_phy_register(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct device_node *np)
{
- return -ENODEV;
+ return ERR_PTR(-ENODEV);
}
static inline int fixed_phy_del(int phy_addr)
{
--
cgit v1.2.1
From 0287587884b15041203b3a362d485e1ab1f24445 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 5 Oct 2014 18:38:35 -0700
Subject: net: better IFF_XMIT_DST_RELEASE support
Testing xmit_more support with netperf and connected UDP sockets,
I found strange dst refcount false sharing.
Current handling of IFF_XMIT_DST_RELEASE is not optimal.
Dropping dst in validate_xmit_skb() is certainly too late in case
packet was queued by cpu X but dequeued by cpu Y
The logical point to take care of drop/force is in __dev_queue_xmit()
before even taking qdisc lock.
As Julian Anastasov pointed out, need for skb_dst() might come from some
packet schedulers or classifiers.
This patch adds new helper to cleanly express needs of various drivers
or qdiscs/classifiers.
Drivers that need skb_dst() in their ndo_start_xmit() should call
following helper in their setup instead of the prior :
dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
->
netif_keep_dst(dev);
Instead of using a single bit, we use two bits, one being
eventually rebuilt in bonding/team drivers.
The other one, is permanent and blocks IFF_XMIT_DST_RELEASE being
rebuilt in bonding/team. Eventually, we could add something
smarter later.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2df86f50261c..3a4315b39d20 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1206,6 +1206,7 @@ enum netdev_priv_flags {
IFF_SUPP_NOFCS = 1<<19,
IFF_LIVE_ADDR_CHANGE = 1<<20,
IFF_MACVLAN = 1<<21,
+ IFF_XMIT_DST_RELEASE_PERM = 1<<22,
};
#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
@@ -1230,6 +1231,7 @@ enum netdev_priv_flags {
#define IFF_SUPP_NOFCS IFF_SUPP_NOFCS
#define IFF_LIVE_ADDR_CHANGE IFF_LIVE_ADDR_CHANGE
#define IFF_MACVLAN IFF_MACVLAN
+#define IFF_XMIT_DST_RELEASE_PERM IFF_XMIT_DST_RELEASE_PERM
/**
* struct net_device - The DEVICE structure.
@@ -3588,6 +3590,12 @@ static inline bool netif_supports_nofcs(struct net_device *dev)
return dev->priv_flags & IFF_SUPP_NOFCS;
}
+/* This device needs to keep skb dst for qdisc enqueue or ndo_start_xmit() */
+static inline void netif_keep_dst(struct net_device *dev)
+{
+ dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM);
+}
+
extern struct pernet_operations __net_initdata loopback_net_ops;
/* Logging, debugging and troubleshooting/diagnostic helpers. */
--
cgit v1.2.1
From 91c1a09b33c902e20e09d9742560cc238a714de5 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 7 Oct 2014 18:48:12 +0200
Subject: netfilter: kill nf_send_reset6() from
include/net/netfilter/ipv6/nf_reject.h
nf_send_reset6() now resides in net/ipv6/netfilter/nf_reject_ipv6.c
Fixes: c8d7b98 ("netfilter: move nf_send_resetX() code to nf_reject_ipvX modules")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Eric Dumazet <edumazet@google.com>
---
include/net/netfilter/ipv6/nf_reject.h | 157 +--------------------------------
1 file changed, 2 insertions(+), 155 deletions(-)
(limited to 'include')
diff --git a/include/net/netfilter/ipv6/nf_reject.h b/include/net/netfilter/ipv6/nf_reject.h
index 7a10cfcd8e33..48e18810a9be 100644
--- a/include/net/netfilter/ipv6/nf_reject.h
+++ b/include/net/netfilter/ipv6/nf_reject.h
@@ -1,11 +1,7 @@
#ifndef _IPV6_NF_REJECT_H
#define _IPV6_NF_REJECT_H
-#include <net/ipv6.h>
-#include <net/ip6_route.h>
-#include <net/ip6_fib.h>
-#include <net/ip6_checksum.h>
-#include <linux/netfilter_ipv6.h>
+#include <linux/icmpv6.h>
static inline void
nf_send_unreach6(struct net *net, struct sk_buff *skb_in, unsigned char code,
@@ -17,155 +13,6 @@ nf_send_unreach6(struct net *net, struct sk_buff *skb_in, unsigned char code,
icmpv6_send(skb_in, ICMPV6_DEST_UNREACH, code, 0);
}
-/* Send RST reply */
-static void nf_send_reset6(struct net *net, struct sk_buff *oldskb, int hook)
-{
- struct sk_buff *nskb;
- struct tcphdr otcph, *tcph;
- unsigned int otcplen, hh_len;
- int tcphoff, needs_ack;
- const struct ipv6hdr *oip6h = ipv6_hdr(oldskb);
- struct ipv6hdr *ip6h;
-#define DEFAULT_TOS_VALUE 0x0U
- const __u8 tclass = DEFAULT_TOS_VALUE;
- struct dst_entry *dst = NULL;
- u8 proto;
- __be16 frag_off;
- struct flowi6 fl6;
-
- if ((!(ipv6_addr_type(&oip6h->saddr) & IPV6_ADDR_UNICAST)) ||
- (!(ipv6_addr_type(&oip6h->daddr) & IPV6_ADDR_UNICAST))) {
- pr_debug("addr is not unicast.\n");
- return;
- }
-
- proto = oip6h->nexthdr;
- tcphoff = ipv6_skip_exthdr(oldskb, ((u8*)(oip6h+1) - oldskb->data), &proto, &frag_off);
-
- if ((tcphoff < 0) || (tcphoff > oldskb->len)) {
- pr_debug("Cannot get TCP header.\n");
- return;
- }
-
- otcplen = oldskb->len - tcphoff;
-
- /* IP header checks: fragment, too short. */
- if (proto != IPPROTO_TCP || otcplen < sizeof(struct tcphdr)) {
- pr_debug("proto(%d) != IPPROTO_TCP, "
- "or too short. otcplen = %d\n",
- proto, otcplen);
- return;
- }
-
- if (skb_copy_bits(oldskb, tcphoff, &otcph, sizeof(struct tcphdr)))
- BUG();
-
- /* No RST for RST. */
- if (otcph.rst) {
- pr_debug("RST is set\n");
- return;
- }
-
- /* Check checksum. */
- if (nf_ip6_checksum(oldskb, hook, tcphoff, IPPROTO_TCP)) {
- pr_debug("TCP checksum is invalid\n");
- return;
- }
-
- memset(&fl6, 0, sizeof(fl6));
- fl6.flowi6_proto = IPPROTO_TCP;
- fl6.saddr = oip6h->daddr;
- fl6.daddr = oip6h->saddr;
- fl6.fl6_sport = otcph.dest;
- fl6.fl6_dport = otcph.source;
- security_skb_classify_flow(oldskb, flowi6_to_flowi(&fl6));
- dst = ip6_route_output(net, NULL, &fl6);
- if (dst == NULL || dst->error) {
- dst_release(dst);
- return;
- }
- dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), NULL, 0);
- if (IS_ERR(dst))
- return;
-
- hh_len = (dst->dev->hard_header_len + 15)&~15;
- nskb = alloc_skb(hh_len + 15 + dst->header_len + sizeof(struct ipv6hdr)
- + sizeof(struct tcphdr) + dst->trailer_len,
- GFP_ATOMIC);
-
- if (!nskb) {
- net_dbg_ratelimited("cannot alloc skb\n");
- dst_release(dst);
- return;
- }
-
- skb_dst_set(nskb, dst);
-
- skb_reserve(nskb, hh_len + dst->header_len);
-
- skb_put(nskb, sizeof(struct ipv6hdr));
- skb_reset_network_header(nskb);
- ip6h = ipv6_hdr(nskb);
- ip6_flow_hdr(ip6h, tclass, 0);
- ip6h->hop_limit = ip6_dst_hoplimit(dst);
- ip6h->nexthdr = IPPROTO_TCP;
- ip6h->saddr = oip6h->daddr;
- ip6h->daddr = oip6h->saddr;
-
- skb_reset_transport_header(nskb);
- tcph = (struct tcphdr *)skb_put(nskb, sizeof(struct tcphdr));
- /* Truncate to length (no data) */
- tcph->doff = sizeof(struct tcphdr)/4;
- tcph->source = otcph.dest;
- tcph->dest = otcph.source;
-
- if (otcph.ack) {
- needs_ack = 0;
- tcph->seq = otcph.ack_seq;
- tcph->ack_seq = 0;
- } else {
- needs_ack = 1;
- tcph->ack_seq = htonl(ntohl(otcph.seq) + otcph.syn + otcph.fin
- + otcplen - (otcph.doff<<2));
- tcph->seq = 0;
- }
-
- /* Reset flags */
- ((u_int8_t *)tcph)[13] = 0;
- tcph->rst = 1;
- tcph->ack = needs_ack;
- tcph->window = 0;
- tcph->urg_ptr = 0;
- tcph->check = 0;
-
- /* Adjust TCP checksum */
- tcph->check = csum_ipv6_magic(&ipv6_hdr(nskb)->saddr,
- &ipv6_hdr(nskb)->daddr,
- sizeof(struct tcphdr), IPPROTO_TCP,
- csum_partial(tcph,
- sizeof(struct tcphdr), 0));
-
- nf_ct_attach(nskb, oldskb);
-
-#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
- /* If we use ip6_local_out for bridged traffic, the MAC source on
- * the RST will be ours, instead of the destination's. This confuses
- * some routers/firewalls, and they drop the packet. So we need to
- * build the eth header using the original destination's MAC as the
- * source, and send the RST packet directly.
- */
- if (oldskb->nf_bridge) {
- struct ethhdr *oeth = eth_hdr(oldskb);
- nskb->dev = oldskb->nf_bridge->physindev;
- nskb->protocol = htons(ETH_P_IPV6);
- ip6h->payload_len = htons(sizeof(struct tcphdr));
- if (dev_hard_header(nskb, nskb->dev, ntohs(nskb->protocol),
- oeth->h_source, oeth->h_dest, nskb->len) < 0)
- return;
- dev_queue_xmit(nskb);
- } else
-#endif
- ip6_local_out(nskb);
-}
+void nf_send_reset6(struct net *net, struct sk_buff *oldskb, int hook);
#endif /* _IPV6_NF_REJECT_H */
--
cgit v1.2.1
From 0efaa7e82f02fe69c05ad28e905f31fc86e6f08e Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 22 Aug 2014 10:18:45 -0400
Subject: locks: generic_delete_lease doesn't need a file_lock at all
Ensure that it's OK to pass in a NULL file_lock double pointer on
a F_UNLCK request and convert the vfs_setlease F_UNLCK callers to
do just that.
Finally, turn the BUG_ON in generic_setlease into a WARN_ON_ONCE
with an error return. That's a problem we can handle without
crashing the box if it occurs.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/trace/events/filelock.h | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/filelock.h b/include/trace/events/filelock.h
index 59d11c22f076..a0d008070962 100644
--- a/include/trace/events/filelock.h
+++ b/include/trace/events/filelock.h
@@ -53,15 +53,15 @@ DECLARE_EVENT_CLASS(filelock_lease,
),
TP_fast_assign(
- __entry->fl = fl;
+ __entry->fl = fl ? fl : NULL;
__entry->s_dev = inode->i_sb->s_dev;
__entry->i_ino = inode->i_ino;
- __entry->fl_next = fl->fl_next;
- __entry->fl_owner = fl->fl_owner;
- __entry->fl_flags = fl->fl_flags;
- __entry->fl_type = fl->fl_type;
- __entry->fl_break_time = fl->fl_break_time;
- __entry->fl_downgrade_time = fl->fl_downgrade_time;
+ __entry->fl_next = fl ? fl->fl_next : NULL;
+ __entry->fl_owner = fl ? fl->fl_owner : NULL;
+ __entry->fl_flags = fl ? fl->fl_flags : 0;
+ __entry->fl_type = fl ? fl->fl_type : 0;
+ __entry->fl_break_time = fl ? fl->fl_break_time : 0;
+ __entry->fl_downgrade_time = fl ? fl->fl_downgrade_time : 0;
),
TP_printk("fl=0x%p dev=0x%x:0x%x ino=0x%lx fl_next=0x%p fl_owner=0x%p fl_flags=%s fl_type=%s fl_break_time=%lu fl_downgrade_time=%lu",
--
cgit v1.2.1
From e6f5c78930e409f3a6b37f5484313a416359ac7f Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 22 Aug 2014 10:40:25 -0400
Subject: locks: plumb a "priv" pointer into the setlease routines
In later patches, we're going to add a new lock_manager_operation to
finish setting up the lease while still holding the i_lock. To do
this, we'll need to pass a little bit of info in the fcntl setlease
case (primarily an fasync structure). Plumb the extra pointer into
there in advance of that.
We declare this pointer as a void ** to make it clear that this is
private info, and that the caller isn't required to set this unless
the lm_setup specifically requires it.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/fs.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 96528f73dda4..f1870eb67b02 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -982,8 +982,8 @@ extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl);
extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl);
extern int __break_lease(struct inode *inode, unsigned int flags, unsigned int type);
extern void lease_get_mtime(struct inode *, struct timespec *time);
-extern int generic_setlease(struct file *, long, struct file_lock **);
-extern int vfs_setlease(struct file *, long, struct file_lock **);
+extern int generic_setlease(struct file *, long, struct file_lock **, void **priv);
+extern int vfs_setlease(struct file *, long, struct file_lock **, void **);
extern int lease_modify(struct file_lock **, int);
#else /* !CONFIG_FILE_LOCKING */
static inline int fcntl_getlk(struct file *file, unsigned int cmd,
@@ -1100,13 +1100,13 @@ static inline void lease_get_mtime(struct inode *inode, struct timespec *time)
}
static inline int generic_setlease(struct file *filp, long arg,
- struct file_lock **flp)
+ struct file_lock **flp, void **priv)
{
return -EINVAL;
}
static inline int vfs_setlease(struct file *filp, long arg,
- struct file_lock **lease)
+ struct file_lock **lease, void **priv)
{
return -EINVAL;
}
@@ -1494,7 +1494,7 @@ struct file_operations {
int (*flock) (struct file *, int, struct file_lock *);
ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
- int (*setlease)(struct file *, long, struct file_lock **);
+ int (*setlease)(struct file *, long, struct file_lock **, void **);
long (*fallocate)(struct file *file, int mode, loff_t offset,
loff_t len);
int (*show_fdinfo)(struct seq_file *m, struct file *f);
@@ -2599,7 +2599,7 @@ extern int simple_write_end(struct file *file, struct address_space *mapping,
struct page *page, void *fsdata);
extern int always_delete_dentry(const struct dentry *);
extern struct inode *alloc_anon_inode(struct super_block *);
-extern int simple_nosetlease(struct file *, long, struct file_lock **);
+extern int simple_nosetlease(struct file *, long, struct file_lock **, void **);
extern const struct dentry_operations simple_dentry_operations;
extern struct dentry *simple_lookup(struct inode *, struct dentry *, unsigned int flags);
--
cgit v1.2.1
From 1c7dd2ff430fa14b45c9def54468e3a25ab8342b Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 22 Aug 2014 10:55:47 -0400
Subject: locks: define a lm_setup handler for leases
...and move the fasync setup into it for fcntl lease calls. At the same
time, change the semantics of how the file_lock double-pointer is
handled. Up until now, on a successful lease return you got a pointer to
the lock on the list. This is bad, since that pointer can no longer be
relied on as valid once the inode->i_lock has been released.
Change the code to instead just zero out the pointer if the lease we
passed in ended up being used. Then the callers can just check to see
if it's NULL after the call and free it if it isn't.
The priv argument has the same semantics. The lm_setup function can
zero the pointer out to signal to the caller that it should not be
freed after the function returns.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f1870eb67b02..9a6d56154dd5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -874,6 +874,7 @@ struct lock_manager_operations {
int (*lm_grant)(struct file_lock *, int);
void (*lm_break)(struct file_lock *);
int (*lm_change)(struct file_lock **, int);
+ void (*lm_setup)(struct file_lock *, void **);
};
struct lock_manager {
--
cgit v1.2.1
From c45198eda2794bb72601c9f96266d8b95db66dd5 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Mon, 1 Sep 2014 07:12:07 -0400
Subject: locks: move freeing of leases outside of i_lock
There was only one place where we still could free a file_lock while
holding the i_lock -- lease_modify. Add a new list_head argument to the
lm_change operation, pass in a private list when calling it, and fix
those callers to dispose of the list once the lock has been dropped.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/fs.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9a6d56154dd5..f419f718e447 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -873,7 +873,7 @@ struct lock_manager_operations {
void (*lm_notify)(struct file_lock *); /* unblock callback */
int (*lm_grant)(struct file_lock *, int);
void (*lm_break)(struct file_lock *);
- int (*lm_change)(struct file_lock **, int);
+ int (*lm_change)(struct file_lock **, int, struct list_head *);
void (*lm_setup)(struct file_lock *, void **);
};
@@ -985,7 +985,7 @@ extern int __break_lease(struct inode *inode, unsigned int flags, unsigned int t
extern void lease_get_mtime(struct inode *, struct timespec *time);
extern int generic_setlease(struct file *, long, struct file_lock **, void **priv);
extern int vfs_setlease(struct file *, long, struct file_lock **, void **);
-extern int lease_modify(struct file_lock **, int);
+extern int lease_modify(struct file_lock **, int, struct list_head *);
#else /* !CONFIG_FILE_LOCKING */
static inline int fcntl_getlk(struct file *file, unsigned int cmd,
struct flock __user *user)
@@ -1112,7 +1112,8 @@ static inline int vfs_setlease(struct file *filp, long arg,
return -EINVAL;
}
-static inline int lease_modify(struct file_lock **before, int arg)
+static inline int lease_modify(struct file_lock **before, int arg,
+ struct list_head *dispose)
{
return -EINVAL;
}
--
cgit v1.2.1
From 4d01b7f5e7576858b71cbaa72b541e17a229cb91 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Mon, 1 Sep 2014 15:06:54 -0400
Subject: locks: give lm_break a return value
Christoph suggests:
"Add a return value to lm_break so that the lock manager can tell the
core code "you can delete this lease right now". That gets rid of
the games with the timeout which require all kinds of race avoidance
code in the users."
Do that here and have the nfsd lease break routine use it when it detects
that there was a race between setting up the lease and it being broken.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f419f718e447..ed4e1897099c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -872,7 +872,7 @@ struct lock_manager_operations {
void (*lm_put_owner)(struct file_lock *);
void (*lm_notify)(struct file_lock *); /* unblock callback */
int (*lm_grant)(struct file_lock *, int);
- void (*lm_break)(struct file_lock *);
+ bool (*lm_break)(struct file_lock *);
int (*lm_change)(struct file_lock **, int, struct list_head *);
void (*lm_setup)(struct file_lock *, void **);
};
--
cgit v1.2.1
From 7ca76311fe6c397e9f332e5e6c79e3310d5ee98a Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Mon, 1 Sep 2014 19:04:48 -0400
Subject: locks: set fl_owner for leases to filp instead of current->files
Like flock locks, leases are owned by the file description. Now that the
i_have_this_lease check in __break_lease is gone, we don't actually use
the fl_owner for leases for anything. So, it's now safe to set this more
appropriately to the same value as the fl_file.
While we're at it, fix up the comments over the fl_owner_t definition
since they're rather out of date.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
include/linux/fs.h | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index ed4e1897099c..bb9484ae1eef 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -851,13 +851,7 @@ static inline struct file *get_file(struct file *f)
*/
#define FILE_LOCK_DEFERRED 1
-/*
- * The POSIX file lock owner is determined by
- * the "struct files_struct" in the thread group
- * (or NULL for no owner - BSD locks).
- *
- * Lockd stuffs a "host" pointer into this.
- */
+/* legacy typedef, should eventually be removed */
typedef void *fl_owner_t;
struct file_lock_operations {
--
cgit v1.2.1
From 1b2b32dcdb3df28dd103033c73cac2417fa05845 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 24 Sep 2014 08:38:44 -0400
Subject: locks: fix fcntl_setlease/getlease return when !CONFIG_FILE_LOCKING
Currently they both just return 0. Fix them to return more appropriate
values instead.
For better or worse, most places in the kernel return -EINVAL when
leases aren't available. -ENOLCK would probably have been better, but
let's follow suit here in the case of F_SETLEASE.
In the F_GETLEASE case, just return F_UNLCK since we know that no
lease will have been set.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/fs.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index bb9484ae1eef..2023306c620e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1008,12 +1008,12 @@ static inline int fcntl_setlk64(unsigned int fd, struct file *file,
#endif
static inline int fcntl_setlease(unsigned int fd, struct file *filp, long arg)
{
- return 0;
+ return -EINVAL;
}
static inline int fcntl_getlease(struct file *filp)
{
- return 0;
+ return F_UNLCK;
}
static inline void locks_init_lock(struct file_lock *fl)
--
cgit v1.2.1
From f0d1f04f0a2f662b6b617e24d115fddcf6ef8723 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Tue, 7 Oct 2014 19:02:11 +0200
Subject: netfilter: fix wrong arithmetics regarding NFT_REJECT_ICMPX_MAX
NFT_REJECT_ICMPX_MAX should be __NFT_REJECT_ICMPX_MAX - 1.
nft_reject_icmp_code() and nft_reject_icmpv6_code() are called from the
packet path, so BUG_ON in case we try to access an unknown abstracted
ICMP code. This should not happen since we already validate this from
nft_reject_{inet,bridge}_init().
Fixes: 51b0a5d ("netfilter: nft_reject: introduce icmp code abstraction for inet and bridge")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_tables.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index c26df6787fb0..f31fe7b660a5 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -774,7 +774,7 @@ enum nft_reject_inet_code {
NFT_REJECT_ICMPX_ADMIN_PROHIBITED,
__NFT_REJECT_ICMPX_MAX
};
-#define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX + 1)
+#define NFT_REJECT_ICMPX_MAX (__NFT_REJECT_ICMPX_MAX - 1)
/**
* enum nft_reject_attributes - nf_tables reject expression netlink attributes
--
cgit v1.2.1
From f2fc42b6ac31f4d808da7a9da460dd433a71e976 Mon Sep 17 00:00:00 2001
From: Suman Anna <s-anna@ti.com>
Date: Thu, 12 Jun 2014 22:30:34 +0530
Subject: mailbox: rename pl320-ipc specific mailbox.h
The patch 30058677 "ARM / highbank: add support for pl320 IPC"
added a pl320 IPC specific header file as a generic mailbox.h.
This file has been renamed appropriately to allow the
introduction of the generic mailbox API framework.
Acked-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
include/linux/mailbox.h | 17 -----------------
include/linux/pl320-ipc.h | 17 +++++++++++++++++
2 files changed, 17 insertions(+), 17 deletions(-)
delete mode 100644 include/linux/mailbox.h
create mode 100644 include/linux/pl320-ipc.h
(limited to 'include')
diff --git a/include/linux/mailbox.h b/include/linux/mailbox.h
deleted file mode 100644
index 5161f63ec1c8..000000000000
--- a/include/linux/mailbox.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-int pl320_ipc_transmit(u32 *data);
-int pl320_ipc_register_notifier(struct notifier_block *nb);
-int pl320_ipc_unregister_notifier(struct notifier_block *nb);
diff --git a/include/linux/pl320-ipc.h b/include/linux/pl320-ipc.h
new file mode 100644
index 000000000000..5161f63ec1c8
--- /dev/null
+++ b/include/linux/pl320-ipc.h
@@ -0,0 +1,17 @@
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+int pl320_ipc_transmit(u32 *data);
+int pl320_ipc_register_notifier(struct notifier_block *nb);
+int pl320_ipc_unregister_notifier(struct notifier_block *nb);
--
cgit v1.2.1
From 2b6d83e2b8b7de82331a6a1dcd64b51020a6031c Mon Sep 17 00:00:00 2001
From: Jassi Brar <jaswinder.singh@linaro.org>
Date: Thu, 12 Jun 2014 22:31:19 +0530
Subject: mailbox: Introduce framework for mailbox
Introduce common framework for client/protocol drivers and
controller drivers of Inter-Processor-Communication (IPC).
Client driver developers should have a look at
include/linux/mailbox_client.h to understand the part of
the API exposed to client drivers.
Similarly controller driver developers should have a look
at include/linux/mailbox_controller.h
Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
---
include/linux/mailbox_client.h | 46 +++++++++++++
include/linux/mailbox_controller.h | 133 +++++++++++++++++++++++++++++++++++++
2 files changed, 179 insertions(+)
create mode 100644 include/linux/mailbox_client.h
create mode 100644 include/linux/mailbox_controller.h
(limited to 'include')
diff --git a/include/linux/mailbox_client.h b/include/linux/mailbox_client.h
new file mode 100644
index 000000000000..307d9cab2026
--- /dev/null
+++ b/include/linux/mailbox_client.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2013-2014 Linaro Ltd.
+ * Author: Jassi Brar <jassisinghbrar@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __MAILBOX_CLIENT_H
+#define __MAILBOX_CLIENT_H
+
+#include <linux/of.h>
+#include <linux/device.h>
+
+struct mbox_chan;
+
+/**
+ * struct mbox_client - User of a mailbox
+ * @dev: The client device
+ * @tx_block: If the mbox_send_message should block until data is
+ * transmitted.
+ * @tx_tout: Max block period in ms before TX is assumed failure
+ * @knows_txdone: If the client could run the TX state machine. Usually
+ * if the client receives some ACK packet for transmission.
+ * Unused if the controller already has TX_Done/RTR IRQ.
+ * @rx_callback: Atomic callback to provide client the data received
+ * @tx_done: Atomic callback to tell client of data transmission
+ */
+struct mbox_client {
+ struct device *dev;
+ bool tx_block;
+ unsigned long tx_tout;
+ bool knows_txdone;
+
+ void (*rx_callback)(struct mbox_client *cl, void *mssg);
+ void (*tx_done)(struct mbox_client *cl, void *mssg, int r);
+};
+
+struct mbox_chan *mbox_request_channel(struct mbox_client *cl, int index);
+int mbox_send_message(struct mbox_chan *chan, void *mssg);
+void mbox_client_txdone(struct mbox_chan *chan, int r); /* atomic */
+bool mbox_client_peek_data(struct mbox_chan *chan); /* atomic */
+void mbox_free_channel(struct mbox_chan *chan); /* may sleep */
+
+#endif /* __MAILBOX_CLIENT_H */
diff --git a/include/linux/mailbox_controller.h b/include/linux/mailbox_controller.h
new file mode 100644
index 000000000000..d4cf96f07cfc
--- /dev/null
+++ b/include/linux/mailbox_controller.h
@@ -0,0 +1,133 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __MAILBOX_CONTROLLER_H
+#define __MAILBOX_CONTROLLER_H
+
+#include <linux/of.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/device.h>
+#include <linux/completion.h>
+
+struct mbox_chan;
+
+/**
+ * struct mbox_chan_ops - methods to control mailbox channels
+ * @send_data: The API asks the MBOX controller driver, in atomic
+ * context try to transmit a message on the bus. Returns 0 if
+ * data is accepted for transmission, -EBUSY while rejecting
+ * if the remote hasn't yet read the last data sent. Actual
+ * transmission of data is reported by the controller via
+ * mbox_chan_txdone (if it has some TX ACK irq). It must not
+ * sleep.
+ * @startup: Called when a client requests the chan. The controller
+ * could ask clients for additional parameters of communication
+ * to be provided via client's chan_data. This call may
+ * block. After this call the Controller must forward any
+ * data received on the chan by calling mbox_chan_received_data.
+ * The controller may do stuff that need to sleep.
+ * @shutdown: Called when a client relinquishes control of a chan.
+ * This call may block too. The controller must not forward
+ * any received data anymore.
+ * The controller may do stuff that need to sleep.
+ * @last_tx_done: If the controller sets 'txdone_poll', the API calls
+ * this to poll status of last TX. The controller must
+ * give priority to IRQ method over polling and never
+ * set both txdone_poll and txdone_irq. Only in polling
+ * mode 'send_data' is expected to return -EBUSY.
+ * The controller may do stuff that need to sleep/block.
+ * Used only if txdone_poll:=true && txdone_irq:=false
+ * @peek_data: Atomic check for any received data. Return true if controller
+ * has some data to push to the client. False otherwise.
+ */
+struct mbox_chan_ops {
+ int (*send_data)(struct mbox_chan *chan, void *data);
+ int (*startup)(struct mbox_chan *chan);
+ void (*shutdown)(struct mbox_chan *chan);
+ bool (*last_tx_done)(struct mbox_chan *chan);
+ bool (*peek_data)(struct mbox_chan *chan);
+};
+
+/**
+ * struct mbox_controller - Controller of a class of communication channels
+ * @dev: Device backing this controller
+ * @ops: Operators that work on each communication chan
+ * @chans: Array of channels
+ * @num_chans: Number of channels in the 'chans' array.
+ * @txdone_irq: Indicates if the controller can report to API when
+ * the last transmitted data was read by the remote.
+ * Eg, if it has some TX ACK irq.
+ * @txdone_poll: If the controller can read but not report the TX
+ * done. Ex, some register shows the TX status but
+ * no interrupt rises. Ignored if 'txdone_irq' is set.
+ * @txpoll_period: If 'txdone_poll' is in effect, the API polls for
+ * last TX's status after these many millisecs
+ * @of_xlate: Controller driver specific mapping of channel via DT
+ * @poll: API private. Used to poll for TXDONE on all channels.
+ * @node: API private. To hook into list of controllers.
+ */
+struct mbox_controller {
+ struct device *dev;
+ struct mbox_chan_ops *ops;
+ struct mbox_chan *chans;
+ int num_chans;
+ bool txdone_irq;
+ bool txdone_poll;
+ unsigned txpoll_period;
+ struct mbox_chan *(*of_xlate)(struct mbox_controller *mbox,
+ const struct of_phandle_args *sp);
+ /* Internal to API */
+ struct timer_list poll;
+ struct list_head node;
+};
+
+/*
+ * The length of circular buffer for queuing messages from a client.
+ * 'msg_count' tracks the number of buffered messages while 'msg_free'
+ * is the index where the next message would be buffered.
+ * We shouldn't need it too big because every transfer is interrupt
+ * triggered and if we have lots of data to transfer, the interrupt
+ * latencies are going to be the bottleneck, not the buffer length.
+ * Besides, mbox_send_message could be called from atomic context and
+ * the client could also queue another message from the notifier 'tx_done'
+ * of the last transfer done.
+ * REVISIT: If too many platforms see the "Try increasing MBOX_TX_QUEUE_LEN"
+ * print, it needs to be taken from config option or somesuch.
+ */
+#define MBOX_TX_QUEUE_LEN 20
+
+/**
+ * struct mbox_chan - s/w representation of a communication chan
+ * @mbox: Pointer to the parent/provider of this channel
+ * @txdone_method: Way to detect TXDone chosen by the API
+ * @cl: Pointer to the current owner of this channel
+ * @tx_complete: Transmission completion
+ * @active_req: Currently active request hook
+ * @msg_count: No. of mssg currently queued
+ * @msg_free: Index of next available mssg slot
+ * @msg_data: Hook for data packet
+ * @lock: Serialise access to the channel
+ * @con_priv: Hook for controller driver to attach private data
+ */
+struct mbox_chan {
+ struct mbox_controller *mbox;
+ unsigned txdone_method;
+ struct mbox_client *cl;
+ struct completion tx_complete;
+ void *active_req;
+ unsigned msg_count, msg_free;
+ void *msg_data[MBOX_TX_QUEUE_LEN];
+ spinlock_t lock; /* Serialise access to the channel */
+ void *con_priv;
+};
+
+int mbox_controller_register(struct mbox_controller *mbox); /* can sleep */
+void mbox_controller_unregister(struct mbox_controller *mbox); /* can sleep */
+void mbox_chan_received_data(struct mbox_chan *chan, void *data); /* atomic */
+void mbox_chan_txdone(struct mbox_chan *chan, int r); /* atomic */
+
+#endif /* __MAILBOX_CONTROLLER_H */
--
cgit v1.2.1
From 1cd258d7faccb330145f08d838608b2c6ad41604 Mon Sep 17 00:00:00 2001
From: Ian Munsie <imunsie@au1.ibm.com>
Date: Wed, 8 Oct 2014 19:54:56 +1100
Subject: cxl: Add new header for call backs and structs
This new header adds callbacks and structs needed by the rest of the kernel to
hook into the cxl infrastructure.
This adds the cxl_ctx_in_use() function for use in the mm code to see if any
cxl contexts are currently in use. This is used by the tlbie() to determine if
it can do local TLB invalidations or not. This also adds get/put calls for the
cxl driver module to refcount the active cxl contexts.
cxl_ctx_get/put/in_use are static inlined here as they are called in tlbie
which we want to be fast (mpe's suggestion).
Empty functions are provided when CONFIG_CXL_BASE is not enabled.
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
include/misc/cxl.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 include/misc/cxl.h
(limited to 'include')
diff --git a/include/misc/cxl.h b/include/misc/cxl.h
new file mode 100644
index 000000000000..975cc7861f18
--- /dev/null
+++ b/include/misc/cxl.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _MISC_CXL_H
+#define _MISC_CXL_H
+
+#ifdef CONFIG_CXL_BASE
+
+#define CXL_IRQ_RANGES 4
+
+struct cxl_irq_ranges {
+ irq_hw_number_t offset[CXL_IRQ_RANGES];
+ irq_hw_number_t range[CXL_IRQ_RANGES];
+};
+
+extern atomic_t cxl_use_count;
+
+static inline bool cxl_ctx_in_use(void)
+{
+ return (atomic_read(&cxl_use_count) != 0);
+}
+
+static inline void cxl_ctx_get(void)
+{
+ atomic_inc(&cxl_use_count);
+}
+
+static inline void cxl_ctx_put(void)
+{
+ atomic_dec(&cxl_use_count);
+}
+
+void cxl_slbia(struct mm_struct *mm);
+
+#else /* CONFIG_CXL_BASE */
+
+static inline bool cxl_ctx_in_use(void) { return false; }
+static inline void cxl_slbia(struct mm_struct *mm) {}
+
+#endif /* CONFIG_CXL_BASE */
+
+#endif
--
cgit v1.2.1
From 66b43081c0bde3171208a7cb52f5807dce4a79e4 Mon Sep 17 00:00:00 2001
From: Ian Munsie <imunsie@au1.ibm.com>
Date: Wed, 8 Oct 2014 19:55:03 +1100
Subject: cxl: Add userspace header file
This adds a header file for use by userspace programs wanting to interact with
the kernel cxl driver. It defines structs and magic numbers required for
userspace to interact with devices in /dev/cxl/afuM.N.
Further documentation on this interface is added in a subsequent patch in
Documentation/powerpc/cxl.txt.
It also adds this new userspace header file to Kbuild so it's exported when
doing "make headers_installs".
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
include/uapi/Kbuild | 1 +
include/uapi/misc/Kbuild | 2 ++
include/uapi/misc/cxl.h | 87 ++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 90 insertions(+)
create mode 100644 include/uapi/misc/Kbuild
create mode 100644 include/uapi/misc/cxl.h
(limited to 'include')
diff --git a/include/uapi/Kbuild b/include/uapi/Kbuild
index 81d2106287fe..245aa6e05e6a 100644
--- a/include/uapi/Kbuild
+++ b/include/uapi/Kbuild
@@ -12,3 +12,4 @@ header-y += video/
header-y += drm/
header-y += xen/
header-y += scsi/
+header-y += misc/
diff --git a/include/uapi/misc/Kbuild b/include/uapi/misc/Kbuild
new file mode 100644
index 000000000000..e96cae7d58c9
--- /dev/null
+++ b/include/uapi/misc/Kbuild
@@ -0,0 +1,2 @@
+# misc Header export list
+header-y += cxl.h
diff --git a/include/uapi/misc/cxl.h b/include/uapi/misc/cxl.h
new file mode 100644
index 000000000000..c232be6ae21f
--- /dev/null
+++ b/include/uapi/misc/cxl.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2014 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _UAPI_MISC_CXL_H
+#define _UAPI_MISC_CXL_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/* Structs for IOCTLS for userspace to talk to the kernel */
+struct cxl_ioctl_start_work {
+ __u64 flags;
+ __u64 work_element_descriptor;
+ __u64 amr;
+ __s16 num_interrupts;
+ __s16 reserved1;
+ __s32 reserved2;
+ __u64 reserved3;
+ __u64 reserved4;
+ __u64 reserved5;
+ __u64 reserved6;
+};
+#define CXL_START_WORK_AMR 0x0000000000000001ULL
+#define CXL_START_WORK_NUM_IRQS 0x0000000000000002ULL
+#define CXL_START_WORK_ALL (CXL_START_WORK_AMR |\
+ CXL_START_WORK_NUM_IRQS)
+
+/* IOCTL numbers */
+#define CXL_MAGIC 0xCA
+#define CXL_IOCTL_START_WORK _IOW(CXL_MAGIC, 0x00, struct cxl_ioctl_start_work)
+#define CXL_IOCTL_GET_PROCESS_ELEMENT _IOR(CXL_MAGIC, 0x01, __u32)
+
+/* Events from read() */
+#define CXL_READ_MIN_SIZE 0x1000 /* 4K */
+
+enum cxl_event_type {
+ CXL_EVENT_RESERVED = 0,
+ CXL_EVENT_AFU_INTERRUPT = 1,
+ CXL_EVENT_DATA_STORAGE = 2,
+ CXL_EVENT_AFU_ERROR = 3,
+};
+
+struct cxl_event_header {
+ __u16 type;
+ __u16 size;
+ __u16 process_element;
+ __u16 reserved1;
+};
+
+struct cxl_event_afu_interrupt {
+ __u16 flags;
+ __u16 irq; /* Raised AFU interrupt number */
+ __u32 reserved1;
+};
+
+struct cxl_event_data_storage {
+ __u16 flags;
+ __u16 reserved1;
+ __u32 reserved2;
+ __u64 addr;
+ __u64 dsisr;
+ __u64 reserved3;
+};
+
+struct cxl_event_afu_error {
+ __u16 flags;
+ __u16 reserved1;
+ __u32 reserved2;
+ __u64 error;
+};
+
+struct cxl_event {
+ struct cxl_event_header header;
+ union {
+ struct cxl_event_afu_interrupt irq;
+ struct cxl_event_data_storage fault;
+ struct cxl_event_afu_error afu_error;
+ };
+};
+
+#endif /* _UAPI_MISC_CXL_H */
--
cgit v1.2.1
From a9282d01cf357379ce29103cec5e7651a53c634d Mon Sep 17 00:00:00 2001
From: Ian Munsie <imunsie@au1.ibm.com>
Date: Wed, 8 Oct 2014 19:55:05 +1100
Subject: cxl: Add documentation for userspace APIs
This documentation gives an overview of the hardware architecture, userspace
APIs via /dev/cxl/afuM.N and the syfs files. It also adds a MAINTAINERS file
entry for cxl.
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
include/uapi/misc/cxl.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/misc/cxl.h b/include/uapi/misc/cxl.h
index c232be6ae21f..cd6d789b73ec 100644
--- a/include/uapi/misc/cxl.h
+++ b/include/uapi/misc/cxl.h
@@ -13,7 +13,7 @@
#include <linux/types.h>
#include <linux/ioctl.h>
-/* Structs for IOCTLS for userspace to talk to the kernel */
+
struct cxl_ioctl_start_work {
__u64 flags;
__u64 work_element_descriptor;
@@ -26,19 +26,20 @@ struct cxl_ioctl_start_work {
__u64 reserved5;
__u64 reserved6;
};
+
#define CXL_START_WORK_AMR 0x0000000000000001ULL
#define CXL_START_WORK_NUM_IRQS 0x0000000000000002ULL
#define CXL_START_WORK_ALL (CXL_START_WORK_AMR |\
CXL_START_WORK_NUM_IRQS)
-/* IOCTL numbers */
+/* ioctl numbers */
#define CXL_MAGIC 0xCA
#define CXL_IOCTL_START_WORK _IOW(CXL_MAGIC, 0x00, struct cxl_ioctl_start_work)
#define CXL_IOCTL_GET_PROCESS_ELEMENT _IOR(CXL_MAGIC, 0x01, __u32)
-/* Events from read() */
#define CXL_READ_MIN_SIZE 0x1000 /* 4K */
+/* Events from read() */
enum cxl_event_type {
CXL_EVENT_RESERVED = 0,
CXL_EVENT_AFU_INTERRUPT = 1,
--
cgit v1.2.1
From 583d4a6885cfa75a3d189f6bb69b5c545e961c75 Mon Sep 17 00:00:00 2001
From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Tue, 7 Oct 2014 15:04:57 +0200
Subject: net: fs_enet: Remove non NAPI RX
In the probe function, use_napi is inconditionnaly set to 1. This patch removes
all the code which is conditional to !use_napi, and removes use_napi which has
then become useless.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/fs_enet_pd.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs_enet_pd.h b/include/linux/fs_enet_pd.h
index efb05961bdd8..77d783f71527 100644
--- a/include/linux/fs_enet_pd.h
+++ b/include/linux/fs_enet_pd.h
@@ -139,7 +139,6 @@ struct fs_platform_info {
int rx_ring, tx_ring; /* number of buffers on rx */
__u8 macaddr[ETH_ALEN]; /* mac address */
int rx_copybreak; /* limit we copy small frames */
- int use_napi; /* use NAPI */
int napi_weight; /* NAPI weight */
int use_rmii; /* use RMII mode */
--
cgit v1.2.1
From 68939df1d7d8da9088d51000bd334f4c59ea0cb3 Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@amacapital.net>
Date: Thu, 14 Aug 2014 14:45:40 -0700
Subject: Move Intel SNB device ids from sb_edac to pci_ids.h
The i2c_imc driver will use two of them, and moving only part of
the list seems messier.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/linux/pci_ids.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 6ed0bb73a864..58aa8d78353f 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2818,7 +2818,22 @@
#define PCI_DEVICE_ID_INTEL_UNC_R2PCIE 0x3c43
#define PCI_DEVICE_ID_INTEL_UNC_R3QPI0 0x3c44
#define PCI_DEVICE_ID_INTEL_UNC_R3QPI1 0x3c45
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_RAS 0x3c71 /* 15.1 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_ERR0 0x3c72 /* 16.2 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_ERR1 0x3c73 /* 16.3 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_ERR2 0x3c76 /* 16.6 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_ERR3 0x3c77 /* 16.7 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0 0x3ca0 /* 14.0 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA 0x3ca8 /* 15.0 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD0 0x3caa /* 15.2 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD1 0x3cab /* 15.3 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD2 0x3cac /* 15.4 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TAD3 0x3cad /* 15.5 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_DDRIO 0x3cb8 /* 17.0 */
#define PCI_DEVICE_ID_INTEL_JAKETOWN_UBOX 0x3ce0
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_SAD0 0x3cf4 /* 12.6 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_BR 0x3cf5 /* 13.6 */
+#define PCI_DEVICE_ID_INTEL_SBRIDGE_SAD1 0x3cf6 /* 12.7 */
#define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f
#define PCI_DEVICE_ID_INTEL_5100_16 0x65f0
#define PCI_DEVICE_ID_INTEL_5100_19 0x65f3
--
cgit v1.2.1
From 709c48b39ecf11a81f3820c13a828c330fd832b9 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Wed, 8 Oct 2014 23:53:39 +0900
Subject: net: description of dma_cookie cause make xmldocs warning
In commit 7bced397510ab569d31de4c70b39e13355046387,
dma_cookie was removed from struct skbuff.
But the description of dma_cookie still exist.
So the "make xmldocs" output following warning.
Warning(.//include/linux/skbuff.h:609): Excess struct/union
/enum/typedef member 'dma_cookie' description in 'sk_buff'
Remove description of dma_cookie fix the symptom.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 3a5ec7638627..776104ba02ce 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -483,8 +483,6 @@ static inline u32 skb_mstamp_us_delta(const struct skb_mstamp *t1,
* @wifi_acked_valid: wifi_acked was set
* @wifi_acked: whether frame was acked on wifi or not
* @no_fcs: Request NIC to treat last 4 bytes as Ethernet FCS
- * @dma_cookie: a cookie to one of several possible DMA operations
- * done by skb DMA functions
* @napi_id: id of the NAPI struct this skb came from
* @secmark: security marking
* @mark: Generic packet mark
--
cgit v1.2.1
From 535114539bb2c081b6680cb5a34be17e7b45df37 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 8 Oct 2014 08:19:27 -0700
Subject: net: add netdev_txq_bql_{enqueue, complete}_prefetchw() helpers
Add two helpers so that drivers do not have to care of BQL being
available or not.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jim Davis <jim.epost@gmail.com>
Fixes: 29d40c903247 ("net/mlx4_en: Use prefetch in tx path")
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3a4315b39d20..838407aea705 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -30,6 +30,7 @@
#include <linux/bug.h>
#include <linux/delay.h>
#include <linux/atomic.h>
+#include <linux/prefetch.h>
#include <asm/cache.h>
#include <asm/byteorder.h>
@@ -2480,6 +2481,34 @@ netif_xmit_frozen_or_drv_stopped(const struct netdev_queue *dev_queue)
return dev_queue->state & QUEUE_STATE_DRV_XOFF_OR_FROZEN;
}
+/**
+ * netdev_txq_bql_enqueue_prefetchw - prefetch bql data for write
+ * @dev_queue: pointer to transmit queue
+ *
+ * BQL enabled drivers might use this helper in their ndo_start_xmit(),
+ * to give appropriate hint to the cpu.
+ */
+static inline void netdev_txq_bql_enqueue_prefetchw(struct netdev_queue *dev_queue)
+{
+#ifdef CONFIG_BQL
+ prefetchw(&dev_queue->dql.num_queued);
+#endif
+}
+
+/**
+ * netdev_txq_bql_complete_prefetchw - prefetch bql data for write
+ * @dev_queue: pointer to transmit queue
+ *
+ * BQL enabled drivers might use this helper in their TX completion path,
+ * to give appropriate hint to the cpu.
+ */
+static inline void netdev_txq_bql_complete_prefetchw(struct netdev_queue *dev_queue)
+{
+#ifdef CONFIG_BQL
+ prefetchw(&dev_queue->dql.limit);
+#endif
+}
+
static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue,
unsigned int bytes)
{
--
cgit v1.2.1
From 1ffe46d11cc88479797b262f60d92e5fb461b411 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Thu, 13 Feb 2014 09:39:37 -0800
Subject: vfs: Merge check_submounts_and_drop and d_invalidate
Now that d_invalidate is the only caller of check_submounts_and_drop,
expand check_submounts_and_drop inline in d_invalidate.
Reviewed-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/dcache.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 75a227cc7ce2..595af29ad145 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -269,7 +269,6 @@ extern void d_prune_aliases(struct inode *);
/* test whether we have any submounts in a subdir tree */
extern int have_submounts(struct dentry *);
-extern int check_submounts_and_drop(struct dentry *);
/*
* This adds the entry to the hash queues.
--
cgit v1.2.1
From 5542aa2fa7f6cddb03c4ac3135e390adffda98ca Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Thu, 13 Feb 2014 09:46:25 -0800
Subject: vfs: Make d_invalidate return void
Now that d_invalidate can no longer fail, stop returning a useless
return code. For the few callers that checked the return code update
remove the handling of d_invalidate failure.
Reviewed-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/dcache.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 595af29ad145..81b03150f39a 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -254,7 +254,7 @@ extern struct dentry * d_obtain_root(struct inode *);
extern void shrink_dcache_sb(struct super_block *);
extern void shrink_dcache_parent(struct dentry *);
extern void shrink_dcache_for_umount(struct super_block *);
-extern int d_invalidate(struct dentry *);
+extern void d_invalidate(struct dentry *);
/* only used at mount-time */
extern struct dentry * d_make_root(struct inode *);
--
cgit v1.2.1
From 1fa97e8b1f327059aa98089abd8c3378cdf43017 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 7 May 2014 20:47:49 -0400
Subject: constify file_inode()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 94187721ad41..75bdd51ec9b8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1874,7 +1874,7 @@ extern int current_umask(void);
extern void ihold(struct inode * inode);
extern void iput(struct inode *);
-static inline struct inode *file_inode(struct file *f)
+static inline struct inode *file_inode(const struct file *f)
{
return f->f_inode;
}
--
cgit v1.2.1
From c35e02480014f7a86e264a2fda39a568690163da Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <willy@linux.intel.com>
Date: Fri, 1 Aug 2014 09:27:22 -0400
Subject: Add copy_to_iter(), copy_from_iter() and iov_iter_zero()
For DAX, we want to be able to copy between iovecs and kernel addresses
that don't necessarily have a struct page. This is a fairly simple
rearrangement for bvec iters to kmap the pages outside and pass them in,
but for user iovecs it gets more complicated because we might try various
different ways to kmap the memory. Duplicating the existing logic works
out best in this case.
We need to be able to write zeroes to an iovec for reads from unwritten
ranges in a file. This is performed by the new iov_iter_zero() function,
again patterned after the existing code that handles iovec iterators.
[AV: and export the buggers...]
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/uio.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 290fbf0b6b8a..9b1581414cd4 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -80,6 +80,9 @@ size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
struct iov_iter *i);
size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
struct iov_iter *i);
+size_t copy_to_iter(void *addr, size_t bytes, struct iov_iter *i);
+size_t copy_from_iter(void *addr, size_t bytes, struct iov_iter *i);
+size_t iov_iter_zero(size_t bytes, struct iov_iter *);
unsigned long iov_iter_alignment(const struct iov_iter *i);
void iov_iter_init(struct iov_iter *i, int direction, const struct iovec *iov,
unsigned long nr_segs, size_t count);
--
cgit v1.2.1
From 5e6123f3477e4260fb14392f0a88f1a842fa4d42 Mon Sep 17 00:00:00 2001
From: Seunghun Lee <waydi1@gmail.com>
Date: Sun, 14 Sep 2014 22:15:10 +0900
Subject: vfs: move getname() from callers to do_mount()
It would make more sense to pass char __user * instead of
char * in callers of do_mount() and do getname() inside do_mount().
Suggested-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Seunghun Lee <waydi1@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/fs.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 75bdd51ec9b8..92148361bef8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1855,7 +1855,8 @@ extern struct vfsmount *kern_mount_data(struct file_system_type *, void *data);
extern void kern_unmount(struct vfsmount *mnt);
extern int may_umount_tree(struct vfsmount *);
extern int may_umount(struct vfsmount *);
-extern long do_mount(const char *, const char *, const char *, unsigned long, void *);
+extern long do_mount(const char *, const char __user *,
+ const char *, unsigned long, void *);
extern struct vfsmount *collect_mounts(struct path *);
extern void drop_collected_mounts(struct vfsmount *);
extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
--
cgit v1.2.1
From fd22f78cf7b95102d8e5b988afe27165e47471fc Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagig@mellanox.com>
Date: Wed, 13 Aug 2014 19:54:29 +0300
Subject: IB/mlx5: Use enumerations for PI copy mask
In case input and output space parameters match, we can use a copy
mask from input and output space. Use enums for those.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/qp.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 9709b30e2d69..4aa5634dc210 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -40,6 +40,9 @@
#define MLX5_SIG_WQE_SIZE (MLX5_SEND_WQE_BB * 5)
#define MLX5_DIF_SIZE 8
#define MLX5_STRIDE_BLOCK_OP 0x400
+#define MLX5_CPY_GRD_MASK 0xc0
+#define MLX5_CPY_APP_MASK 0x30
+#define MLX5_CPY_REF_MASK 0x0f
enum mlx5_qp_optpar {
MLX5_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
--
cgit v1.2.1
From 142537f4e5f7ffd3e34b0c46646ac9cb5d986d06 Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagig@mellanox.com>
Date: Wed, 13 Aug 2014 19:54:32 +0300
Subject: IB/mlx5: Use extended internal signature layout
Rather than using the basic BSF layout which utilizes a pre-configured
signature settings (sufficient for current DIF implementation), we use
the extended BSF layout to expose advanced signature settings. These
settings will also be exposed to the user later.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/qp.h | 32 ++++++++++++++++++++++++--------
1 file changed, 24 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 4aa5634dc210..69f5378455b7 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -43,6 +43,12 @@
#define MLX5_CPY_GRD_MASK 0xc0
#define MLX5_CPY_APP_MASK 0x30
#define MLX5_CPY_REF_MASK 0x0f
+#define MLX5_BSF_INC_REFTAG (1 << 6)
+#define MLX5_BSF_INL_VALID (1 << 15)
+#define MLX5_BSF_REFRESH_DIF (1 << 14)
+#define MLX5_BSF_REPEAT_BLOCK (1 << 7)
+#define MLX5_BSF_APPTAG_ESCAPE 0x1
+#define MLX5_BSF_APPREF_ESCAPE 0x2
enum mlx5_qp_optpar {
MLX5_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
@@ -290,6 +296,22 @@ struct mlx5_wqe_inline_seg {
__be32 byte_count;
};
+enum mlx5_sig_type {
+ MLX5_DIF_CRC = 0x1,
+ MLX5_DIF_IPCS = 0x2,
+};
+
+struct mlx5_bsf_inl {
+ __be16 vld_refresh;
+ __be16 dif_apptag;
+ __be32 dif_reftag;
+ u8 sig_type;
+ u8 rp_inv_seed;
+ u8 rsvd[3];
+ u8 dif_inc_ref_guard_check;
+ __be16 dif_app_bitmask_check;
+};
+
struct mlx5_bsf {
struct mlx5_bsf_basic {
u8 bsf_size_sbs;
@@ -313,14 +335,8 @@ struct mlx5_bsf {
__be32 w_tfs_psv;
__be32 m_tfs_psv;
} ext;
- struct mlx5_bsf_inl {
- __be32 w_inl_vld;
- __be32 w_rsvd;
- __be64 w_block_format;
- __be32 m_inl_vld;
- __be32 m_rsvd;
- __be64 m_block_format;
- } inl;
+ struct mlx5_bsf_inl w_inl;
+ struct mlx5_bsf_inl m_inl;
};
struct mlx5_klm {
--
cgit v1.2.1
From 78eda2bb6542057b214af3bc1cae09c63e65d1d1 Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagig@mellanox.com>
Date: Wed, 13 Aug 2014 19:54:35 +0300
Subject: IB/mlx5, iser, isert: Add Signature API additions
Expose more signature setting parameters. We modify the signature API
to allow usage of some new execution parameters relevant to data
integrity feature.
This patch modifies ib_sig_domain structure by:
- Deprecate DIF type in signature API (operation will
be determined by the parameters alone, no DIF type awareness)
- Add APPTAG check bitmask (for input domain)
- Add REFTAG remap (increment) flag for each domain
- Add APPTAG/REFTAG escape options for each domain
The mlx5 driver is modified to follow the new parameters in HW
signature setup.
At the moment the callers (iser/isert) hard-code new parameters (by
DIF type). In the future, callers will retrieve them from the scsi
command structure.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/rdma/ib_verbs.h | 32 ++++++++++++++------------------
1 file changed, 14 insertions(+), 18 deletions(-)
(limited to 'include')
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index ed44cc07a7b3..470a011d6fa4 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -491,20 +491,14 @@ struct ib_mr_init_attr {
u32 flags;
};
-enum ib_signature_type {
- IB_SIG_TYPE_T10_DIF,
-};
-
/**
- * T10-DIF Signature types
- * T10-DIF types are defined by SCSI
- * specifications.
+ * Signature types
+ * IB_SIG_TYPE_NONE: Unprotected.
+ * IB_SIG_TYPE_T10_DIF: Type T10-DIF
*/
-enum ib_t10_dif_type {
- IB_T10DIF_NONE,
- IB_T10DIF_TYPE1,
- IB_T10DIF_TYPE2,
- IB_T10DIF_TYPE3
+enum ib_signature_type {
+ IB_SIG_TYPE_NONE,
+ IB_SIG_TYPE_T10_DIF,
};
/**
@@ -520,24 +514,26 @@ enum ib_t10_dif_bg_type {
/**
* struct ib_t10_dif_domain - Parameters specific for T10-DIF
* domain.
- * @type: T10-DIF type (0|1|2|3)
* @bg_type: T10-DIF block guard type (CRC|CSUM)
* @pi_interval: protection information interval.
* @bg: seed of guard computation.
* @app_tag: application tag of guard block
* @ref_tag: initial guard block reference tag.
- * @type3_inc_reftag: T10-DIF type 3 does not state
- * about the reference tag, it is the user
- * choice to increment it or not.
+ * @ref_remap: Indicate wethear the reftag increments each block
+ * @app_escape: Indicate to skip block check if apptag=0xffff
+ * @ref_escape: Indicate to skip block check if reftag=0xffffffff
+ * @apptag_check_mask: check bitmask of application tag.
*/
struct ib_t10_dif_domain {
- enum ib_t10_dif_type type;
enum ib_t10_dif_bg_type bg_type;
u16 pi_interval;
u16 bg;
u16 app_tag;
u32 ref_tag;
- bool type3_inc_reftag;
+ bool ref_remap;
+ bool app_escape;
+ bool ref_escape;
+ u16 apptag_check_mask;
};
/**
--
cgit v1.2.1
From fe0f49768d807a8fe6336b097feb8c4441951710 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Tue, 30 Sep 2014 17:37:52 +0200
Subject: s390/nohz: use a per-cpu flag for arch_needs_cpu
Move the nohz_delay bit from the s390_idle data structure to the
per-cpu flags. Clear the nohz delay flag in __cpu_disable and
remove the cpu hotplug notifier that used to do this.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
include/linux/tick.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 9a82c7dc3fdd..e5832d03da19 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -108,7 +108,7 @@ extern struct tick_sched *tick_get_tick_sched(int cpu);
extern void tick_irq_enter(void);
extern int tick_oneshot_mode_active(void);
# ifndef arch_needs_cpu
-# define arch_needs_cpu(cpu) (0)
+# define arch_needs_cpu() (0)
# endif
# else
static inline void tick_clock_notify(void) { }
--
cgit v1.2.1
From 8070361799ae1e3f4ef347bd10f0a508ac10acfb Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 6 Oct 2014 17:53:53 +0200
Subject: s390: add support for vector extension
The vector extension introduces 32 128-bit vector registers and a set of
instruction to operate on the vector registers.
The kernel can control the use of vector registers for the problem state
program with a bit in control register 0. Once enabled for a process the
kernel needs to retain the content of the vector registers on context
switch. The signal frame is extended to include the vector registers.
Two new register sets NT_S390_VXRS_LOW and NT_S390_VXRS_HIGH are added
to the regset interface for the debugger and core dumps.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
include/uapi/linux/elf.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index ef6103bf1f9b..ea9bf2561b9e 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -391,6 +391,8 @@ typedef struct elf64_shdr {
#define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */
#define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */
#define NT_S390_TDB 0x308 /* s390 transaction diagnostic block */
+#define NT_S390_VXRS_LOW 0x309 /* s390 vector registers 0-15 upper half */
+#define NT_S390_VXRS_HIGH 0x30a /* s390 vector registers 16-31 */
#define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */
#define NT_ARM_TLS 0x401 /* ARM TLS register */
#define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */
--
cgit v1.2.1
From 33ac9dba859b07d40e9ec826057d20c857fdede5 Mon Sep 17 00:00:00 2001
From: Maarten ter Huurne <maarten@treewalker.org>
Date: Tue, 9 Sep 2014 13:46:28 +0200
Subject: fonts: Add 6x10 font
This font is suitable for framebuffer consoles on devices with a
320x240 screen, to get a reasonable number of characters (53x24) that
are still at a readable size.
The font is derived from the existing 6x11 font, but gets 3 extra
lines without sacrificing readability. Also I redesigned a some glyhps
so they are more distinct and better fill the available space.
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
include/linux/font.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/font.h b/include/linux/font.h
index 40a24ab41b36..d6821769dd1e 100644
--- a/include/linux/font.h
+++ b/include/linux/font.h
@@ -31,6 +31,7 @@ struct font_desc {
#define SUN12x22_IDX 7
#define ACORN8x8_IDX 8
#define MINI4x6_IDX 9
+#define FONT6x10_IDX 10
extern const struct font_desc font_vga_8x8,
font_vga_8x16,
@@ -41,7 +42,8 @@ extern const struct font_desc font_vga_8x8,
font_sun_8x16,
font_sun_12x22,
font_acorn_8x8,
- font_mini_4x6;
+ font_mini_4x6,
+ font_6x10;
/* Find a font with a specific name */
--
cgit v1.2.1
From 66be7d2bcd826344894be09dc385f9f805136b84 Mon Sep 17 00:00:00 2001
From: Henning Rogge <hrogge@gmail.com>
Date: Fri, 12 Sep 2014 08:58:49 +0200
Subject: cfg80211: add ops to query mesh proxy path table
Add two new cfg80211 operations for querying a table with proxied mesh
paths.
Signed-off-by: Henning Rogge <henning.rogge@fkie.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 7 +++++++
include/uapi/linux/nl80211.h | 6 ++++++
2 files changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index a2ddcf2398fd..3f3aaa06adb5 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2146,6 +2146,8 @@ struct cfg80211_qos_map {
* @change_mpath: change a given mesh path
* @get_mpath: get a mesh path for the given parameters
* @dump_mpath: dump mesh path callback -- resume dump at index @idx
+ * @get_mpp: get a mesh proxy path for the given parameters
+ * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx
* @join_mesh: join the mesh network with the specified parameters
* (invoked with the wireless_dev mutex held)
* @leave_mesh: leave the current mesh network
@@ -2396,6 +2398,11 @@ struct cfg80211_ops {
int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
int idx, u8 *dst, u8 *next_hop,
struct mpath_info *pinfo);
+ int (*get_mpp)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *dst, u8 *mpp, struct mpath_info *pinfo);
+ int (*dump_mpp)(struct wiphy *wiphy, struct net_device *dev,
+ int idx, u8 *dst, u8 *mpp,
+ struct mpath_info *pinfo);
int (*get_mesh_config)(struct wiphy *wiphy,
struct net_device *dev,
struct mesh_config *conf);
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 4b28dc07bcb1..846071b0cde9 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -738,6 +738,10 @@
* before removing a station entry entirely, or before disassociating
* or similar, cleanup will happen in the driver/device in this case.
*
+ * @NL80211_CMD_GET_MPP: Get mesh path attributes for mesh proxy path to
+ * destination %NL80211_ATTR_MAC on the interface identified by
+ * %NL80211_ATTR_IFINDEX.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -912,6 +916,8 @@ enum nl80211_commands {
NL80211_CMD_ADD_TX_TS,
NL80211_CMD_DEL_TX_TS,
+ NL80211_CMD_GET_MPP,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
--
cgit v1.2.1
From 2ba45384e5426b9a4aeb77656dce0bf3250ce54e Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Wed, 8 Oct 2014 09:48:35 +0300
Subject: mac80211: add device_timestamp to the ieee80211_channel_switch struct
Some devices may need the device timestamp in order to synchronize the
channel switch. To pass this value back to the driver, add it to the
channel switch structure and copy the device_timestamp value received
in the rx info structure into it.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 0ad1f47d2dc7..ec0a5b07055b 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1117,6 +1117,8 @@ struct ieee80211_conf {
* Function (TSF) timer when the frame containing the channel switch
* announcement was received. This is simply the rx.mactime parameter
* the driver passed into mac80211.
+ * @device_timestamp: arbitrary timestamp for the device, this is the
+ * rx.device_timestamp parameter the driver passed to mac80211.
* @block_tx: Indicates whether transmission must be blocked before the
* scheduled channel switch, as indicated by the AP.
* @chandef: the new channel to switch to
@@ -1124,6 +1126,7 @@ struct ieee80211_conf {
*/
struct ieee80211_channel_switch {
u64 timestamp;
+ u32 device_timestamp;
bool block_tx;
struct cfg80211_chan_def chandef;
u8 count;
--
cgit v1.2.1
From e9a21949b79414dda42a017855b288901c07e613 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Wed, 8 Oct 2014 09:48:36 +0300
Subject: mac80211: add extended channel switching capability if the driver
supports CSA
The Extended Channel Switching capability bit in the extended
capabilities element must be set if the driver supports CSA on
non-beaconing interfaces.
Since this capability needs to be set during driver registration, the
extended_capabiliities global variable needs to be moved to the local
structure so that it can be modified.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index b1be39c76931..5fab17b382b5 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1998,6 +1998,11 @@ enum ieee80211_tdls_actioncode {
WLAN_TDLS_DISCOVERY_REQUEST = 10,
};
+/* Extended Channel Switching capability to be set in the 1st byte of
+ * the @WLAN_EID_EXT_CAPABILITY information element
+ */
+#define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2)
+
/* Interworking capabilities are set in 7th bit of 4th byte of the
* @WLAN_EID_EXT_CAPABILITY information element
*/
--
cgit v1.2.1
From 6d027bcc8a4e2518ae825b0ff3dd069ab1abfe96 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Wed, 8 Oct 2014 09:48:37 +0300
Subject: mac80211: add pre_channel_switch driver operation
Some drivers may need to prepare for a channel switch also when it is
initiated from the remote side (eg. station, P2P client). To make
this possible, add a generic callback that can be called for all
interface types.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ec0a5b07055b..19e4159ce3a3 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2832,6 +2832,10 @@ enum ieee80211_roc_type {
* transmitted and then call ieee80211_csa_finish().
* If the CSA count starts as zero or 1, this function will not be called,
* since there won't be any time to beacon before the switch anyway.
+ * @pre_channel_switch: This is an optional callback that is called
+ * before a channel switch procedure is started (ie. when a STA
+ * gets a CSA or an userspace initiated channel-switch), allowing
+ * the driver to prepare for the channel switch.
*
* @join_ibss: Join an IBSS (on an IBSS interface); this is called after all
* information in bss_conf is set up and the beacon can be retrieved. A
@@ -3038,6 +3042,9 @@ struct ieee80211_ops {
void (*channel_switch_beacon)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_chan_def *chandef);
+ int (*pre_channel_switch)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_channel_switch *ch_switch);
int (*join_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
void (*leave_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
--
cgit v1.2.1
From f1d65583bc5bd43ace8abb9d4f4d9e8da407f708 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Wed, 8 Oct 2014 09:48:38 +0300
Subject: mac80211: add post_channel_switch driver operation
As a counterpart to the pre_channel_switch operation, add a
post_channel_switch operation. This allows the drivers to go back to
a normal configuration after the channel switch is completed.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 19e4159ce3a3..7861ed875c4d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2836,6 +2836,9 @@ enum ieee80211_roc_type {
* before a channel switch procedure is started (ie. when a STA
* gets a CSA or an userspace initiated channel-switch), allowing
* the driver to prepare for the channel switch.
+ * @post_channel_switch: This is an optional callback that is called
+ * after a channel switch procedure is completed, allowing the
+ * driver to go back to a normal configuration.
*
* @join_ibss: Join an IBSS (on an IBSS interface); this is called after all
* information in bss_conf is set up and the beacon can be retrieved. A
@@ -3046,6 +3049,9 @@ struct ieee80211_ops {
struct ieee80211_vif *vif,
struct ieee80211_channel_switch *ch_switch);
+ int (*post_channel_switch)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif);
+
int (*join_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
void (*leave_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
u32 (*get_expected_throughput)(struct ieee80211_sta *sta);
--
cgit v1.2.1
From 0f791eb47f8222fd594e6f8a090632344ef23924 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Wed, 8 Oct 2014 09:48:40 +0300
Subject: mac80211: allow channel switch with multiple channel contexts
Channel switch with multiple channel contexts should now work fine.
Remove check that disallows switches when multiple contexts are in
use.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7861ed875c4d..9bb2fc73aeaa 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2969,6 +2969,7 @@ struct ieee80211_ops {
void (*flush)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u32 queues, bool drop);
void (*channel_switch)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
struct ieee80211_channel_switch *ch_switch);
int (*set_antenna)(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant);
int (*get_antenna)(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant);
--
cgit v1.2.1
From b8839b8c55f3fdd60dc36abcda7e0266aff7985c Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Wed, 8 Oct 2014 18:26:13 -0400
Subject: block: fix alignment_offset math that assumes io_min is a power-of-2
The math in both blk_stack_limits() and queue_limit_alignment_offset()
assume that a block device's io_min (aka minimum_io_size) is always a
power-of-2. Fix the math such that it works for non-power-of-2 io_min.
This issue (of alignment_offset != 0) became apparent when testing
dm-thinp with a thinp blocksize that matches a RAID6 stripesize of
1280K. Commit fdfb4c8c1 ("dm thin: set minimum_io_size to pool's data
block size") unlocked the potential for alignment_offset != 0 due to
the dm-thin-pool's io_min possibly being a non-power-of-2.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 038b40f84c7a..554639249fd6 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1279,10 +1279,9 @@ static inline int queue_alignment_offset(struct request_queue *q)
static inline int queue_limit_alignment_offset(struct queue_limits *lim, sector_t sector)
{
unsigned int granularity = max(lim->physical_block_size, lim->io_min);
- unsigned int alignment = (sector << 9) & (granularity - 1);
+ unsigned int alignment = sector_div(sector, granularity >> 9) << 9;
- return (granularity + lim->alignment_offset - alignment)
- & (granularity - 1);
+ return (granularity + lim->alignment_offset - alignment) % granularity;
}
static inline int bdev_alignment_offset(struct block_device *bdev)
--
cgit v1.2.1
From 58cb65487e92b47448d00a711c9f5922137d5678 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 9 Oct 2014 15:25:54 -0700
Subject: proc/maps: make vm_is_stack() logic namespace-friendly
- Rename vm_is_stack() to task_of_stack() and change it to return
"struct task_struct *" rather than the global (and thus wrong in
general) pid_t.
- Add the new pid_of_stack() helper which calls task_of_stack() and
uses the right namespace to report the correct pid_t.
Unfortunately we need to define this helper twice, in task_mmu.c
and in task_nommu.c. perhaps it makes sense to add fs/proc/util.c
and move at least pid_of_stack/task_of_stack there to avoid the
code duplication.
- Change show_map_vma() and show_numa_map() to use the new helper.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0f4196a0bc20..28df70774b81 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1247,8 +1247,8 @@ static inline int stack_guard_page_end(struct vm_area_struct *vma,
!vma_growsup(vma->vm_next, addr);
}
-extern pid_t
-vm_is_stack(struct task_struct *task, struct vm_area_struct *vma, int in_group);
+extern struct task_struct *task_of_stack(struct task_struct *task,
+ struct vm_area_struct *vma, bool in_group);
extern unsigned long move_page_tables(struct vm_area_struct *vma,
unsigned long old_addr, struct vm_area_struct *new_vma,
--
cgit v1.2.1
From 07f361b2bee38896df8be17d8c3f8af3f3610606 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 9 Oct 2014 15:26:00 -0700
Subject: mm/slab_common: move kmem_cache definition to internal header
We don't need to keep kmem_cache definition in include/linux/slab.h if we
don't need to inline kmem_cache_size(). According to my code inspection,
this function is only called at lc_create() in lib/lru_cache.c which may
be called at initialization phase of something, so we don't need to inline
it. Therfore, move it to slab_common.c and move kmem_cache definition to
internal header.
After this change, we can change kmem_cache definition easily without full
kernel build. For instance, we can turn on/off CONFIG_SLUB_STATS without
full kernel build.
[akpm@linux-foundation.org: export kmem_cache_size() to modules]
[rdunlap@infradead.org: add header files to fix kmemcheck.c build errors]
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/slab.h | 42 +-----------------------------------------
1 file changed, 1 insertion(+), 41 deletions(-)
(limited to 'include')
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 1d9abb7d22a0..9062e4ad1787 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -158,31 +158,6 @@ size_t ksize(const void *);
#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long long)
#endif
-#ifdef CONFIG_SLOB
-/*
- * Common fields provided in kmem_cache by all slab allocators
- * This struct is either used directly by the allocator (SLOB)
- * or the allocator must include definitions for all fields
- * provided in kmem_cache_common in their definition of kmem_cache.
- *
- * Once we can do anonymous structs (C11 standard) we could put a
- * anonymous struct definition in these allocators so that the
- * separate allocations in the kmem_cache structure of SLAB and
- * SLUB is no longer needed.
- */
-struct kmem_cache {
- unsigned int object_size;/* The original size of the object */
- unsigned int size; /* The aligned/padded/added on size */
- unsigned int align; /* Alignment as calculated */
- unsigned long flags; /* Active flags on the slab */
- const char *name; /* Slab name for sysfs */
- int refcount; /* Use counter */
- void (*ctor)(void *); /* Called on object slot creation */
- struct list_head list; /* List of all slab caches on the system */
-};
-
-#endif /* CONFIG_SLOB */
-
/*
* Kmalloc array related definitions
*/
@@ -363,14 +338,6 @@ kmem_cache_alloc_node_trace(struct kmem_cache *s,
}
#endif /* CONFIG_TRACING */
-#ifdef CONFIG_SLAB
-#include <linux/slab_def.h>
-#endif
-
-#ifdef CONFIG_SLUB
-#include <linux/slub_def.h>
-#endif
-
extern void *kmalloc_order(size_t size, gfp_t flags, unsigned int order);
#ifdef CONFIG_TRACING
@@ -650,14 +617,7 @@ static inline void *kzalloc_node(size_t size, gfp_t flags, int node)
return kmalloc_node(size, flags | __GFP_ZERO, node);
}
-/*
- * Determine the size of a slab object
- */
-static inline unsigned int kmem_cache_size(struct kmem_cache *s)
-{
- return s->object_size;
-}
-
+unsigned int kmem_cache_size(struct kmem_cache *s);
void __init kmem_cache_init_late(void);
#endif /* _LINUX_SLAB_H */
--
cgit v1.2.1
From 61f47105a2c9c60e950ca808b7560f776f9bfa31 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 9 Oct 2014 15:26:02 -0700
Subject: mm/sl[ao]b: always track caller in kmalloc_(node_)track_caller()
Now, we track caller if tracing or slab debugging is enabled. If they are
disabled, we could save one argument passing overhead by calling
__kmalloc(_node)(). But, I think that it would be marginal. Furthermore,
default slab allocator, SLUB, doesn't use this technique so I think that
it's okay to change this situation.
After this change, we can turn on/off CONFIG_DEBUG_SLAB without full
kernel build and remove some complicated '#if' defintion. It looks more
benefitial to me.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/slab.h | 22 ----------------------
1 file changed, 22 deletions(-)
(limited to 'include')
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 9062e4ad1787..c265bec6a57d 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -549,37 +549,15 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
* allocator where we care about the real place the memory allocation
* request comes from.
*/
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
- (defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
- (defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
#define kmalloc_track_caller(size, flags) \
__kmalloc_track_caller(size, flags, _RET_IP_)
-#else
-#define kmalloc_track_caller(size, flags) \
- __kmalloc(size, flags)
-#endif /* DEBUG_SLAB */
#ifdef CONFIG_NUMA
-/*
- * kmalloc_node_track_caller is a special version of kmalloc_node that
- * records the calling function of the routine calling it for slab leak
- * tracking instead of just the calling function (confusing, eh?).
- * It's useful when the call to kmalloc_node comes from a widely-used
- * standard allocator where we care about the real place the memory
- * allocation request comes from.
- */
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
- (defined(CONFIG_SLAB) && defined(CONFIG_TRACING)) || \
- (defined(CONFIG_SLOB) && defined(CONFIG_TRACING))
extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long);
#define kmalloc_node_track_caller(size, flags, node) \
__kmalloc_node_track_caller(size, flags, node, \
_RET_IP_)
-#else
-#define kmalloc_node_track_caller(size, flags, node) \
- __kmalloc_node(size, flags, node)
-#endif
#else /* CONFIG_NUMA */
--
cgit v1.2.1
From ad2c8144418c6a81cefe65379fd47bbe8344cef2 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 9 Oct 2014 15:26:13 -0700
Subject: topology: add support for node_to_mem_node() to determine the
fallback node
Anton noticed (http://www.spinics.net/lists/linux-mm/msg67489.html) that
on ppc LPARs with memoryless nodes, a large amount of memory was consumed
by slabs and was marked unreclaimable. He tracked it down to slab
deactivations in the SLUB core when we allocate remotely, leading to poor
efficiency always when memoryless nodes are present.
After much discussion, Joonsoo provided a few patches that help
significantly. They don't resolve the problem altogether:
- memory hotplug still needs testing, that is when a memoryless node
becomes memory-ful, we want to dtrt
- there are other reasons for going off-node than memoryless nodes,
e.g., fully exhausted local nodes
Neither case is resolved with this series, but I don't think that should
block their acceptance, as they can be explored/resolved with follow-on
patches.
The series consists of:
[1/3] topology: add support for node_to_mem_node() to determine the
fallback node
[2/3] slub: fallback to node_to_mem_node() node if allocating on
memoryless node
- Joonsoo's patches to cache the nearest node with memory for each
NUMA node
[3/3] Partial revert of 81c98869faa5 (""kthread: ensure locality of
task_struct allocations")
- At Tejun's request, keep the knowledge of memoryless node fallback
to the allocator core.
This patch (of 3):
We need to determine the fallback node in slub allocator if the allocation
target node is memoryless node. Without it, the SLUB wrongly select the
node which has no memory and can't use a partial slab, because of node
mismatch. Introduced function, node_to_mem_node(X), will return a node Y
with memory that has the nearest distance. If X is memoryless node, it
will return nearest distance node, but, if X is normal node, it will
return itself.
We will use this function in following patch to determine the fallback
node.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Han Pingtian <hanpt@linux.vnet.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Anton Blanchard <anton@samba.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/topology.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
(limited to 'include')
diff --git a/include/linux/topology.h b/include/linux/topology.h
index dda6ee521e74..909b6e43b694 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -119,11 +119,20 @@ static inline int numa_node_id(void)
* Use the accessor functions set_numa_mem(), numa_mem_id() and cpu_to_mem().
*/
DECLARE_PER_CPU(int, _numa_mem_);
+extern int _node_numa_mem_[MAX_NUMNODES];
#ifndef set_numa_mem
static inline void set_numa_mem(int node)
{
this_cpu_write(_numa_mem_, node);
+ _node_numa_mem_[numa_node_id()] = node;
+}
+#endif
+
+#ifndef node_to_mem_node
+static inline int node_to_mem_node(int node)
+{
+ return _node_numa_mem_[node];
}
#endif
@@ -146,6 +155,7 @@ static inline int cpu_to_mem(int cpu)
static inline void set_cpu_numa_mem(int cpu, int node)
{
per_cpu(_numa_mem_, cpu) = node;
+ _node_numa_mem_[cpu_to_node(cpu)] = node;
}
#endif
@@ -159,6 +169,13 @@ static inline int numa_mem_id(void)
}
#endif
+#ifndef node_to_mem_node
+static inline int node_to_mem_node(int node)
+{
+ return node;
+}
+#endif
+
#ifndef cpu_to_mem
static inline int cpu_to_mem(int cpu)
{
--
cgit v1.2.1
From bf0dea23a9c094ae869a88bb694fbe966671bf6d Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 9 Oct 2014 15:26:27 -0700
Subject: mm/slab: use percpu allocator for cpu cache
Because of chicken and egg problem, initialization of SLAB is really
complicated. We need to allocate cpu cache through SLAB to make the
kmem_cache work, but before initialization of kmem_cache, allocation
through SLAB is impossible.
On the other hand, SLUB does initialization in a more simple way. It uses
percpu allocator to allocate cpu cache so there is no chicken and egg
problem.
So, this patch try to use percpu allocator in SLAB. This simplifies the
initialization step in SLAB so that we could maintain SLAB code more
easily.
In my testing there is no performance difference.
This implementation relies on percpu allocator. Because percpu allocator
uses vmalloc address space, vmalloc address space could be exhausted by
this change on many cpu system with *32 bit* kernel. This implementation
can cover 1024 cpus in worst case by following calculation.
Worst: 1024 cpus * 4 bytes for pointer * 300 kmem_caches *
120 objects per cpu_cache = 140 MB
Normal: 1024 cpus * 4 bytes for pointer * 150 kmem_caches(slab merge) *
80 objects per cpu_cache = 46 MB
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/slab_def.h | 20 +++-----------------
1 file changed, 3 insertions(+), 17 deletions(-)
(limited to 'include')
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 8235dfbb3b05..b869d1662ba3 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -8,6 +8,8 @@
*/
struct kmem_cache {
+ struct array_cache __percpu *cpu_cache;
+
/* 1) Cache tunables. Protected by slab_mutex */
unsigned int batchcount;
unsigned int limit;
@@ -71,23 +73,7 @@ struct kmem_cache {
struct memcg_cache_params *memcg_params;
#endif
-/* 6) per-cpu/per-node data, touched during every alloc/free */
- /*
- * We put array[] at the end of kmem_cache, because we want to size
- * this array to nr_cpu_ids slots instead of NR_CPUS
- * (see kmem_cache_init())
- * We still use [NR_CPUS] and not [1] or [0] because cache_cache
- * is statically defined, so we reserve the max number of cpus.
- *
- * We also need to guarantee that the list is able to accomodate a
- * pointer for each node since "nodelists" uses the remainder of
- * available pointers.
- */
- struct kmem_cache_node **node;
- struct array_cache *array[NR_CPUS + MAX_NUMNODES];
- /*
- * Do not add fields after array[]
- */
+ struct kmem_cache_node *node[MAX_NUMNODES];
};
#endif /* _LINUX_SLAB_DEF_H */
--
cgit v1.2.1
From ed2f240094f900833ac06f533ab8bbcf0a1e8199 Mon Sep 17 00:00:00 2001
From: Zhang Zhen <zhenzhang.zhang@huawei.com>
Date: Thu, 9 Oct 2014 15:26:31 -0700
Subject: memory-hotplug: add sysfs valid_zones attribute
Currently memory-hotplug has two limits:
1. If the memory block is in ZONE_NORMAL, you can change it to
ZONE_MOVABLE, but this memory block must be adjacent to ZONE_MOVABLE.
2. If the memory block is in ZONE_MOVABLE, you can change it to
ZONE_NORMAL, but this memory block must be adjacent to ZONE_NORMAL.
With this patch, we can easy to know a memory block can be onlined to
which zone, and don't need to know the above two limits.
Updated the related Documentation.
[akpm@linux-foundation.org: use conventional comment layout]
[akpm@linux-foundation.org: fix build with CONFIG_MEMORY_HOTREMOVE=n]
[akpm@linux-foundation.org: remove unused local zone_prev]
Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memory_hotplug.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index d9524c49d767..8f1a41951df9 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -84,6 +84,7 @@ extern int zone_grow_waitqueues(struct zone *zone, unsigned long nr_pages);
extern int add_one_highpage(struct page *page, int pfn, int bad_ppro);
/* VM interface that may be used by firmware interface */
extern int online_pages(unsigned long, unsigned long, int);
+extern int test_pages_in_a_zone(unsigned long, unsigned long);
extern void __offline_isolated_pages(unsigned long, unsigned long);
typedef void (*online_page_callback_t)(struct page *page);
--
cgit v1.2.1
From 6a33979d5bd7521497121c5ae4435d7003115a0f Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Thu, 9 Oct 2014 15:26:33 -0700
Subject: mm: remove misleading ARCH_USES_NUMA_PROT_NONE
ARCH_USES_NUMA_PROT_NONE was defined for architectures that implemented
_PAGE_NUMA using _PROT_NONE. This saved using an additional PTE bit and
relied on the fact that PROT_NONE vmas were skipped by the NUMA hinting
fault scanner. This was found to be conceptually confusing with a lot of
implicit assumptions and it was asked that an alternative be found.
Commit c46a7c81 "x86: define _PAGE_NUMA by reusing software bits on the
PMD and PTE levels" redefined _PAGE_NUMA on x86 to be one of the swap PTE
bits and shrunk the maximum possible swap size but it did not go far
enough. There are no architectures that reuse _PROT_NONE as _PROT_NUMA
but the relics still exist.
This patch removes ARCH_USES_NUMA_PROT_NONE and removes some unnecessary
duplication in powerpc vs the generic implementation by defining the types
the core NUMA helpers expected to exist from x86 with their ppc64
equivalent. This necessitated that a PTE bit mask be created that
identified the bits that distinguish present from NUMA pte entries but it
is expected this will only differ between arches based on _PAGE_PROTNONE.
The naming for the generic helpers was taken from x86 originally but ppc64
has types that are equivalent for the purposes of the helper so they are
mapped instead of duplicating code.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/asm-generic/pgtable.h | 27 +++++++++------------------
1 file changed, 9 insertions(+), 18 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 53b2acc38213..281870f56450 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -660,11 +660,12 @@ static inline int pmd_trans_unstable(pmd_t *pmd)
}
#ifdef CONFIG_NUMA_BALANCING
-#ifdef CONFIG_ARCH_USES_NUMA_PROT_NONE
/*
- * _PAGE_NUMA works identical to _PAGE_PROTNONE (it's actually the
- * same bit too). It's set only when _PAGE_PRESET is not set and it's
- * never set if _PAGE_PRESENT is set.
+ * _PAGE_NUMA distinguishes between an unmapped page table entry, an entry that
+ * is protected for PROT_NONE and a NUMA hinting fault entry. If the
+ * architecture defines __PAGE_PROTNONE then it should take that into account
+ * but those that do not can rely on the fact that the NUMA hinting scanner
+ * skips inaccessible VMAs.
*
* pte/pmd_present() returns true if pte/pmd_numa returns true. Page
* fault triggers on those regions if pte/pmd_numa returns true
@@ -673,16 +674,14 @@ static inline int pmd_trans_unstable(pmd_t *pmd)
#ifndef pte_numa
static inline int pte_numa(pte_t pte)
{
- return (pte_flags(pte) &
- (_PAGE_NUMA|_PAGE_PROTNONE|_PAGE_PRESENT)) == _PAGE_NUMA;
+ return ptenuma_flags(pte) == _PAGE_NUMA;
}
#endif
#ifndef pmd_numa
static inline int pmd_numa(pmd_t pmd)
{
- return (pmd_flags(pmd) &
- (_PAGE_NUMA|_PAGE_PROTNONE|_PAGE_PRESENT)) == _PAGE_NUMA;
+ return pmdnuma_flags(pmd) == _PAGE_NUMA;
}
#endif
@@ -722,6 +721,8 @@ static inline pte_t pte_mknuma(pte_t pte)
{
pteval_t val = pte_val(pte);
+ VM_BUG_ON(!(val & _PAGE_PRESENT));
+
val &= ~_PAGE_PRESENT;
val |= _PAGE_NUMA;
@@ -765,16 +766,6 @@ static inline void pmdp_set_numa(struct mm_struct *mm, unsigned long addr,
}
#endif
#else
-extern int pte_numa(pte_t pte);
-extern int pmd_numa(pmd_t pmd);
-extern pte_t pte_mknonnuma(pte_t pte);
-extern pmd_t pmd_mknonnuma(pmd_t pmd);
-extern pte_t pte_mknuma(pte_t pte);
-extern pmd_t pmd_mknuma(pmd_t pmd);
-extern void ptep_set_numa(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
-extern void pmdp_set_numa(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp);
-#endif /* CONFIG_ARCH_USES_NUMA_PROT_NONE */
-#else
static inline int pmd_numa(pmd_t pmd)
{
return 0;
--
cgit v1.2.1
From 505e3be6c082489a32a88e042f930d047b6415bc Mon Sep 17 00:00:00 2001
From: Laura Abbott <lauraa@codeaurora.org>
Date: Thu, 9 Oct 2014 15:26:35 -0700
Subject: lib/genalloc.c: add power aligned algorithm
One of the more common algorithms used for allocation is to align the
start address of the allocation to the order of size requested. Add this
as an algorithm option for genalloc.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Riley <davidriley@chromium.org>
Cc: Ritesh Harjain <ritesh.harjani@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/genalloc.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h
index 1c2fdaa2ffc3..3cd0934d62ba 100644
--- a/include/linux/genalloc.h
+++ b/include/linux/genalloc.h
@@ -110,6 +110,10 @@ extern void gen_pool_set_algo(struct gen_pool *pool, genpool_algo_t algo,
extern unsigned long gen_pool_first_fit(unsigned long *map, unsigned long size,
unsigned long start, unsigned int nr, void *data);
+extern unsigned long gen_pool_first_fit_order_align(unsigned long *map,
+ unsigned long size, unsigned long start, unsigned int nr,
+ void *data);
+
extern unsigned long gen_pool_best_fit(unsigned long *map, unsigned long size,
unsigned long start, unsigned int nr, void *data);
--
cgit v1.2.1
From 9efb3a421d55d30b65fb0dbee05108d15c6c55f7 Mon Sep 17 00:00:00 2001
From: Laura Abbott <lauraa@codeaurora.org>
Date: Thu, 9 Oct 2014 15:26:38 -0700
Subject: lib/genalloc.c: add genpool range check function
After allocating an address from a particular genpool, there is no good
way to verify if that address actually belongs to a genpool. Introduce
addr_in_gen_pool which will return if an address plus size falls
completely within the genpool range.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Riley <davidriley@chromium.org>
Cc: Ritesh Harjain <ritesh.harjani@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/genalloc.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h
index 3cd0934d62ba..1ccaab44abcc 100644
--- a/include/linux/genalloc.h
+++ b/include/linux/genalloc.h
@@ -121,6 +121,9 @@ extern struct gen_pool *devm_gen_pool_create(struct device *dev,
int min_alloc_order, int nid);
extern struct gen_pool *dev_get_gen_pool(struct device *dev);
+bool addr_in_gen_pool(struct gen_pool *pool, unsigned long start,
+ size_t size);
+
#ifdef CONFIG_OF
extern struct gen_pool *of_get_named_gen_pool(struct device_node *np,
const char *propname, int index);
--
cgit v1.2.1
From 513510ddba9650fc7da456eefeb0ead7632324f6 Mon Sep 17 00:00:00 2001
From: Laura Abbott <lauraa@codeaurora.org>
Date: Thu, 9 Oct 2014 15:26:40 -0700
Subject: common: dma-mapping: introduce common remapping functions
For architectures without coherent DMA, memory for DMA may need to be
remapped with coherent attributes. Factor out the the remapping code from
arm and put it in a common location to reduce code duplication.
As part of this, the arm APIs are now migrated away from
ioremap_page_range to the common APIs which use map_vm_area for remapping.
This should be an equivalent change and using map_vm_area is more correct
as ioremap_page_range is intended to bring in io addresses into the cpu
space and not regular kernel managed memory.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Riley <davidriley@chromium.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Ritesh Harjain <ritesh.harjani@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Laura Abbott <lauraa@codeaurora.org>
Cc: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/asm-generic/dma-mapping-common.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h
index de8bf89940f8..a9fd248f5d48 100644
--- a/include/asm-generic/dma-mapping-common.h
+++ b/include/asm-generic/dma-mapping-common.h
@@ -179,6 +179,15 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size);
+void *dma_common_contiguous_remap(struct page *page, size_t size,
+ unsigned long vm_flags,
+ pgprot_t prot, const void *caller);
+
+void *dma_common_pages_remap(struct page **pages, size_t size,
+ unsigned long vm_flags, pgprot_t prot,
+ const void *caller);
+void dma_common_free_remap(void *cpu_addr, size_t size, unsigned long vm_flags);
+
/**
* dma_mmap_attrs - map a coherent DMA allocation into user space
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
--
cgit v1.2.1
From 53853e2d2bfb748a8b5aa2fd1de15699266865e0 Mon Sep 17 00:00:00 2001
From: Vlastimil Babka <vbabka@suse.cz>
Date: Thu, 9 Oct 2014 15:27:02 -0700
Subject: mm, compaction: defer each zone individually instead of preferred
zone
When direct sync compaction is often unsuccessful, it may become deferred
for some time to avoid further useless attempts, both sync and async.
Successful high-order allocations un-defer compaction, while further
unsuccessful compaction attempts prolong the compaction deferred period.
Currently the checking and setting deferred status is performed only on
the preferred zone of the allocation that invoked direct compaction. But
compaction itself is attempted on all eligible zones in the zonelist, so
the behavior is suboptimal and may lead both to scenarios where 1)
compaction is attempted uselessly, or 2) where it's not attempted despite
good chances of succeeding, as shown on the examples below:
1) A direct compaction with Normal preferred zone failed and set
deferred compaction for the Normal zone. Another unrelated direct
compaction with DMA32 as preferred zone will attempt to compact DMA32
zone even though the first compaction attempt also included DMA32 zone.
In another scenario, compaction with Normal preferred zone failed to
compact Normal zone, but succeeded in the DMA32 zone, so it will not
defer compaction. In the next attempt, it will try Normal zone which
will fail again, instead of skipping Normal zone and trying DMA32
directly.
2) Kswapd will balance DMA32 zone and reset defer status based on
watermarks looking good. A direct compaction with preferred Normal
zone will skip compaction of all zones including DMA32 because Normal
was still deferred. The allocation might have succeeded in DMA32, but
won't.
This patch makes compaction deferring work on individual zone basis
instead of preferred zone. For each zone, it checks compaction_deferred()
to decide if the zone should be skipped. If watermarks fail after
compacting the zone, defer_compaction() is called. The zone where
watermarks passed can still be deferred when the allocation attempt is
unsuccessful. When allocation is successful, compaction_defer_reset() is
called for the zone containing the allocated page. This approach should
approximate calling defer_compaction() only on zones where compaction was
attempted and did not yield allocated page. There might be corner cases
but that is inevitable as long as the decision to stop compacting dues not
guarantee that a page will be allocated.
Due to a new COMPACT_DEFERRED return value, some functions relying
implicitly on COMPACT_SKIPPED = 0 had to be updated, with comments made
more accurate. The did_some_progress output parameter of
__alloc_pages_direct_compact() is removed completely, as the caller
actually does not use it after compaction sets it - it is only considered
when direct reclaim sets it.
During testing on a two-node machine with a single very small Normal zone
on node 1, this patch has improved success rates in stress-highalloc
mmtests benchmark. The success here were previously made worse by commit
3a025760fc15 ("mm: page_alloc: spill to remote nodes before waking
kswapd") as kswapd was no longer resetting often enough the deferred
compaction for the Normal zone, and DMA32 zones on both nodes were thus
not considered for compaction. On different machine, success rates were
improved with __GFP_NO_KSWAPD allocations.
[akpm@linux-foundation.org: fix CONFIG_COMPACTION=n build]
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/compaction.h | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index 01e3132820da..b2e4c92d0445 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -2,14 +2,16 @@
#define _LINUX_COMPACTION_H
/* Return values for compact_zone() and try_to_compact_pages() */
+/* compaction didn't start as it was deferred due to past failures */
+#define COMPACT_DEFERRED 0
/* compaction didn't start as it was not possible or direct reclaim was more suitable */
-#define COMPACT_SKIPPED 0
+#define COMPACT_SKIPPED 1
/* compaction should continue to another pageblock */
-#define COMPACT_CONTINUE 1
+#define COMPACT_CONTINUE 2
/* direct compaction partially compacted a zone and there are suitable pages */
-#define COMPACT_PARTIAL 2
+#define COMPACT_PARTIAL 3
/* The full zone was compacted */
-#define COMPACT_COMPLETE 3
+#define COMPACT_COMPLETE 4
#ifdef CONFIG_COMPACTION
extern int sysctl_compact_memory;
@@ -22,7 +24,8 @@ extern int sysctl_extfrag_handler(struct ctl_table *table, int write,
extern int fragmentation_index(struct zone *zone, unsigned int order);
extern unsigned long try_to_compact_pages(struct zonelist *zonelist,
int order, gfp_t gfp_mask, nodemask_t *mask,
- enum migrate_mode mode, bool *contended);
+ enum migrate_mode mode, bool *contended,
+ struct zone **candidate_zone);
extern void compact_pgdat(pg_data_t *pgdat, int order);
extern void reset_isolation_suitable(pg_data_t *pgdat);
extern unsigned long compaction_suitable(struct zone *zone, int order);
@@ -91,7 +94,8 @@ static inline bool compaction_restarting(struct zone *zone, int order)
#else
static inline unsigned long try_to_compact_pages(struct zonelist *zonelist,
int order, gfp_t gfp_mask, nodemask_t *nodemask,
- enum migrate_mode mode, bool *contended)
+ enum migrate_mode mode, bool *contended,
+ struct zone **candidate_zone)
{
return COMPACT_CONTINUE;
}
--
cgit v1.2.1
From 1f9efdef4f3f1d2a073e524113fd0038af636f2b Mon Sep 17 00:00:00 2001
From: Vlastimil Babka <vbabka@suse.cz>
Date: Thu, 9 Oct 2014 15:27:14 -0700
Subject: mm, compaction: khugepaged should not give up due to need_resched()
Async compaction aborts when it detects zone lock contention or
need_resched() is true. David Rientjes has reported that in practice,
most direct async compactions for THP allocation abort due to
need_resched(). This means that a second direct compaction is never
attempted, which might be OK for a page fault, but khugepaged is intended
to attempt a sync compaction in such case and in these cases it won't.
This patch replaces "bool contended" in compact_control with an int that
distinguishes between aborting due to need_resched() and aborting due to
lock contention. This allows propagating the abort through all compaction
functions as before, but passing the abort reason up to
__alloc_pages_slowpath() which decides when to continue with direct
reclaim and another compaction attempt.
Another problem is that try_to_compact_pages() did not act upon the
reported contention (both need_resched() or lock contention) immediately
and would proceed with another zone from the zonelist. When
need_resched() is true, that means initializing another zone compaction,
only to check again need_resched() in isolate_migratepages() and aborting.
For zone lock contention, the unintended consequence is that the lock
contended status reported back to the allocator is detrmined from the last
zone where compaction was attempted, which is rather arbitrary.
This patch fixes the problem in the following way:
- async compaction of a zone aborting due to need_resched() or fatal signal
pending means that further zones should not be tried. We report
COMPACT_CONTENDED_SCHED to the allocator.
- aborting zone compaction due to lock contention means we can still try
another zone, since it has different set of locks. We report back
COMPACT_CONTENDED_LOCK only if *all* zones where compaction was attempted,
it was aborted due to lock contention.
As a result of these fixes, khugepaged will proceed with second sync
compaction as intended, when the preceding async compaction aborted due to
need_resched(). Page fault compactions aborting due to need_resched()
will spare some cycles previously wasted by initializing another zone
compaction only to abort again. Lock contention will be reported only
when compaction in all zones aborted due to lock contention, and therefore
it's not a good idea to try again after reclaim.
In stress-highalloc from mmtests configured to use __GFP_NO_KSWAPD, this
has improved number of THP collapse allocations by 10%, which shows
positive effect on khugepaged. The benchmark's success rates are
unchanged as it is not recognized as khugepaged. Numbers of compact_stall
and compact_fail events have however decreased by 20%, with
compact_success still a bit improved, which is good. With benchmark
configured not to use __GFP_NO_KSWAPD, there is 6% improvement in THP
collapse allocations, and only slight improvement in stalls and failures.
[akpm@linux-foundation.org: fix warnings]
Reported-by: David Rientjes <rientjes@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Minchan Kim <minchan@kernel.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/compaction.h | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index b2e4c92d0445..60bdf8dc02a3 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -13,6 +13,14 @@
/* The full zone was compacted */
#define COMPACT_COMPLETE 4
+/* Used to signal whether compaction detected need_sched() or lock contention */
+/* No contention detected */
+#define COMPACT_CONTENDED_NONE 0
+/* Either need_sched() was true or fatal signal pending */
+#define COMPACT_CONTENDED_SCHED 1
+/* Zone lock or lru_lock was contended in async compaction */
+#define COMPACT_CONTENDED_LOCK 2
+
#ifdef CONFIG_COMPACTION
extern int sysctl_compact_memory;
extern int sysctl_compaction_handler(struct ctl_table *table, int write,
@@ -24,7 +32,7 @@ extern int sysctl_extfrag_handler(struct ctl_table *table, int write,
extern int fragmentation_index(struct zone *zone, unsigned int order);
extern unsigned long try_to_compact_pages(struct zonelist *zonelist,
int order, gfp_t gfp_mask, nodemask_t *mask,
- enum migrate_mode mode, bool *contended,
+ enum migrate_mode mode, int *contended,
struct zone **candidate_zone);
extern void compact_pgdat(pg_data_t *pgdat, int order);
extern void reset_isolation_suitable(pg_data_t *pgdat);
@@ -94,7 +102,7 @@ static inline bool compaction_restarting(struct zone *zone, int order)
#else
static inline unsigned long try_to_compact_pages(struct zonelist *zonelist,
int order, gfp_t gfp_mask, nodemask_t *nodemask,
- enum migrate_mode mode, bool *contended,
+ enum migrate_mode mode, int *contended,
struct zone **candidate_zone)
{
return COMPACT_CONTINUE;
--
cgit v1.2.1
From 43e7a34d265e884b7cf34f9b05e6f2e0c05bf120 Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Thu, 9 Oct 2014 15:27:25 -0700
Subject: mm: rename allocflags_to_migratetype for clarity
The page allocator has gfp flags (like __GFP_WAIT) and alloc flags (like
ALLOC_CPUSET) that have separate semantics.
The function allocflags_to_migratetype() actually takes gfp flags, not
alloc flags, and returns a migratetype. Rename it to
gfpflags_to_migratetype().
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/gfp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 5e7219dc0fae..41b30fd4d041 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -156,7 +156,7 @@ struct vm_area_struct;
#define GFP_DMA32 __GFP_DMA32
/* Convert GFP flags to their corresponding migrate type */
-static inline int allocflags_to_migratetype(gfp_t gfp_flags)
+static inline int gfpflags_to_migratetype(const gfp_t gfp_flags)
{
WARN_ON((gfp_flags & GFP_MOVABLE_MASK) == GFP_MOVABLE_MASK);
--
cgit v1.2.1
From 9c5990240e076ae564cccbd921868cd08f6daaa5 Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@openvz.org>
Date: Thu, 9 Oct 2014 15:27:29 -0700
Subject: mm: introduce check_data_rlimit helper
To eliminate code duplication lets introduce check_data_rlimit helper
which we will use in brk() and prctl() syscalls.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Andrew Vagin <avagin@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Julien Tinnes <jln@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 28df70774b81..4d814aa97785 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -18,6 +18,7 @@
#include <linux/pfn.h>
#include <linux/bit_spinlock.h>
#include <linux/shrinker.h>
+#include <linux/resource.h>
struct mempolicy;
struct anon_vma;
@@ -1780,6 +1781,20 @@ extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
bool *need_rmap_locks);
extern void exit_mmap(struct mm_struct *);
+static inline int check_data_rlimit(unsigned long rlim,
+ unsigned long new,
+ unsigned long start,
+ unsigned long end_data,
+ unsigned long start_data)
+{
+ if (rlim < RLIM_INFINITY) {
+ if (((new - start) + (end_data - start_data)) > rlim)
+ return -ENOSPC;
+ }
+
+ return 0;
+}
+
extern int mm_take_all_locks(struct mm_struct *mm);
extern void mm_drop_all_locks(struct mm_struct *mm);
--
cgit v1.2.1
From f606b77f1a9e362451aca8f81d8f36a3a112139e Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@openvz.org>
Date: Thu, 9 Oct 2014 15:27:37 -0700
Subject: prctl: PR_SET_MM -- introduce PR_SET_MM_MAP operation
During development of c/r we've noticed that in case if we need to support
user namespaces we face a problem with capabilities in prctl(PR_SET_MM,
...) call, in particular once new user namespace is created
capable(CAP_SYS_RESOURCE) no longer passes.
A approach is to eliminate CAP_SYS_RESOURCE check but pass all new values
in one bundle, which would allow the kernel to make more intensive test
for sanity of values and same time allow us to support checkpoint/restore
of user namespaces.
Thus a new command PR_SET_MM_MAP introduced. It takes a pointer of
prctl_mm_map structure which carries all the members to be updated.
prctl(PR_SET_MM, PR_SET_MM_MAP, struct prctl_mm_map *, size)
struct prctl_mm_map {
__u64 start_code;
__u64 end_code;
__u64 start_data;
__u64 end_data;
__u64 start_brk;
__u64 brk;
__u64 start_stack;
__u64 arg_start;
__u64 arg_end;
__u64 env_start;
__u64 env_end;
__u64 *auxv;
__u32 auxv_size;
__u32 exe_fd;
};
All members except @exe_fd correspond ones of struct mm_struct. To figure
out which available values these members may take here are meanings of the
members.
- start_code, end_code: represent bounds of executable code area
- start_data, end_data: represent bounds of data area
- start_brk, brk: used to calculate bounds for brk() syscall
- start_stack: used when accounting space needed for command
line arguments, environment and shmat() syscall
- arg_start, arg_end, env_start, env_end: represent memory area
supplied for command line arguments and environment variables
- auxv, auxv_size: carries auxiliary vector, Elf format specifics
- exe_fd: file descriptor number for executable link (/proc/self/exe)
Thus we apply the following requirements to the values
1) Any member except @auxv, @auxv_size, @exe_fd is rather an address
in user space thus it must be laying inside [mmap_min_addr, mmap_max_addr)
interval.
2) While @[start|end]_code and @[start|end]_data may point to an nonexisting
VMAs (say a program maps own new .text and .data segments during execution)
the rest of members should belong to VMA which must exist.
3) Addresses must be ordered, ie @start_ member must not be greater or
equal to appropriate @end_ member.
4) As in regular Elf loading procedure we require that @start_brk and
@brk be greater than @end_data.
5) If RLIMIT_DATA rlimit is set to non-infinity new values should not
exceed existing limit. Same applies to RLIMIT_STACK.
6) Auxiliary vector size must not exceed existing one (which is
predefined as AT_VECTOR_SIZE and depends on architecture).
7) File descriptor passed in @exe_file should be pointing
to executable file (because we use existing prctl_set_mm_exe_file_locked
helper it ensures that the file we are going to use as exe link has all
required permission granted).
Now about where these members are involved inside kernel code:
- @start_code and @end_code are used in /proc/$pid/[stat|statm] output;
- @start_data and @end_data are used in /proc/$pid/[stat|statm] output,
also they are considered if there enough space for brk() syscall
result if RLIMIT_DATA is set;
- @start_brk shown in /proc/$pid/stat output and accounted in brk()
syscall if RLIMIT_DATA is set; also this member is tested to
find a symbolic name of mmap event for perf system (we choose
if event is generated for "heap" area); one more aplication is
selinux -- we test if a process has PROCESS__EXECHEAP permission
if trying to make heap area being executable with mprotect() syscall;
- @brk is a current value for brk() syscall which lays inside heap
area, it's shown in /proc/$pid/stat. When syscall brk() succesfully
provides new memory area to a user space upon brk() completion the
mm::brk is updated to carry new value;
Both @start_brk and @brk are actively used in /proc/$pid/maps
and /proc/$pid/smaps output to find a symbolic name "heap" for
VMA being scanned;
- @start_stack is printed out in /proc/$pid/stat and used to
find a symbolic name "stack" for task and threads in
/proc/$pid/maps and /proc/$pid/smaps output, and as the same
as with @start_brk -- perf system uses it for event naming.
Also kernel treat this member as a start address of where
to map vDSO pages and to check if there is enough space
for shmat() syscall;
- @arg_start, @arg_end, @env_start and @env_end are printed out
in /proc/$pid/stat. Another access to the data these members
represent is to read /proc/$pid/environ or /proc/$pid/cmdline.
Any attempt to read these areas kernel tests with access_process_vm
helper so a user must have enough rights for this action;
- @auxv and @auxv_size may be read from /proc/$pid/auxv. Strictly
speaking kernel doesn't care much about which exactly data is
sitting there because it is solely for userspace;
- @exe_fd is referred from /proc/$pid/exe and when generating
coredump. We uses prctl_set_mm_exe_file_locked helper to update
this member, so exe-file link modification remains one-shot
action.
Still note that updating exe-file link now doesn't require sys-resource
capability anymore, after all there is no much profit in preventing setup
own file link (there are a number of ways to execute own code -- ptrace,
ld-preload, so that the only reliable way to find which exactly code is
executed is to inspect running program memory). Still we require the
caller to be at least user-namespace root user.
I believe the old interface should be deprecated and ripped off in a
couple of kernel releases if no one against.
To test if new interface is implemented in the kernel one can pass
PR_SET_MM_MAP_SIZE opcode and the kernel returns the size of currently
supported struct prctl_mm_map.
[akpm@linux-foundation.org: fix 80-col wordwrap in macro definitions]
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Andrew Vagin <avagin@openvz.org>
Tested-by: Andrew Vagin <avagin@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Julien Tinnes <jln@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/uapi/linux/prctl.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index 58afc04c107e..513df75d0fc9 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_PRCTL_H
#define _LINUX_PRCTL_H
+#include <linux/types.h>
+
/* Values to pass as first argument to prctl() */
#define PR_SET_PDEATHSIG 1 /* Second arg is a signal */
@@ -119,6 +121,31 @@
# define PR_SET_MM_ENV_END 11
# define PR_SET_MM_AUXV 12
# define PR_SET_MM_EXE_FILE 13
+# define PR_SET_MM_MAP 14
+# define PR_SET_MM_MAP_SIZE 15
+
+/*
+ * This structure provides new memory descriptor
+ * map which mostly modifies /proc/pid/stat[m]
+ * output for a task. This mostly done in a
+ * sake of checkpoint/restore functionality.
+ */
+struct prctl_mm_map {
+ __u64 start_code; /* code section bounds */
+ __u64 end_code;
+ __u64 start_data; /* data section bounds */
+ __u64 end_data;
+ __u64 start_brk; /* heap for brk() syscall */
+ __u64 brk;
+ __u64 start_stack; /* stack starts at */
+ __u64 arg_start; /* command line arguments bounds */
+ __u64 arg_end;
+ __u64 env_start; /* environment variables bounds */
+ __u64 env_end;
+ __u64 *auxv; /* auxiliary vector */
+ __u32 auxv_size; /* vector size */
+ __u32 exe_fd; /* /proc/$pid/exe link file */
+};
/*
* Set specific pid that is allowed to ptrace the current task.
--
cgit v1.2.1
From 1f13ae399c58af5a05b5cee61da864e1f4071de4 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Thu, 9 Oct 2014 15:27:39 -0700
Subject: mm: remove noisy remainder of the scan_unevictable interface
The deprecation warnings for the scan_unevictable interface triggers by
scripts doing `sysctl -a | grep something else'. This is annoying and not
helpful.
The interface has been defunct since 264e56d8247e ("mm: disable user
interface to manually rescue unevictable pages"), which was in 2011, and
there haven't been any reports of usecases for it, only reports that the
deprecation warnings are annying. It's unlikely that anybody is using
this interface specifically at this point, so remove it.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/swap.h | 16 ----------------
1 file changed, 16 deletions(-)
(limited to 'include')
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 1b72060f093a..ea4f926e6b9b 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -354,22 +354,6 @@ static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order)
extern int page_evictable(struct page *page);
extern void check_move_unevictable_pages(struct page **, int nr_pages);
-extern unsigned long scan_unevictable_pages;
-extern int scan_unevictable_handler(struct ctl_table *, int,
- void __user *, size_t *, loff_t *);
-#ifdef CONFIG_NUMA
-extern int scan_unevictable_register_node(struct node *node);
-extern void scan_unevictable_unregister_node(struct node *node);
-#else
-static inline int scan_unevictable_register_node(struct node *node)
-{
- return 0;
-}
-static inline void scan_unevictable_unregister_node(struct node *node)
-{
-}
-#endif
-
extern int kswapd_run(int nid);
extern void kswapd_stop(int nid);
#ifdef CONFIG_MEMCG
--
cgit v1.2.1
From 6b6482bbf64ef6f6dbc8b52f7a7cf88a0498bd51 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 9 Oct 2014 15:27:48 -0700
Subject: mempolicy: remove the "task" arg of vma_policy_mof() and simplify it
1. vma_policy_mof(task) is simply not safe unless task == current,
it can race with do_exit()->mpol_put(). Remove this arg and update
its single caller.
2. vma can not be NULL, remove this check and simplify the code.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mempolicy.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index f230a978e6ba..5e4bfcedd2ce 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -136,7 +136,7 @@ struct mempolicy *mpol_shared_policy_lookup(struct shared_policy *sp,
struct mempolicy *get_vma_policy(struct task_struct *tsk,
struct vm_area_struct *vma, unsigned long addr);
-bool vma_policy_mof(struct task_struct *task, struct vm_area_struct *vma);
+bool vma_policy_mof(struct vm_area_struct *vma);
extern void numa_default_policy(void);
extern void numa_policy_init(void);
--
cgit v1.2.1
From 74d2c3a05cc6c1eef2d7236a9919036ed85ddaaf Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 9 Oct 2014 15:27:50 -0700
Subject: mempolicy: introduce __get_vma_policy(), export get_task_policy()
Extract the code which looks for vma's policy from get_vma_policy()
into the new helper, __get_vma_policy(). Export get_task_policy().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mempolicy.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 5e4bfcedd2ce..e1abe249892a 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -134,6 +134,9 @@ void mpol_free_shared_policy(struct shared_policy *p);
struct mempolicy *mpol_shared_policy_lookup(struct shared_policy *sp,
unsigned long idx);
+struct mempolicy *get_task_policy(struct task_struct *p);
+struct mempolicy *__get_vma_policy(struct vm_area_struct *vma,
+ unsigned long addr);
struct mempolicy *get_vma_policy(struct task_struct *tsk,
struct vm_area_struct *vma, unsigned long addr);
bool vma_policy_mof(struct vm_area_struct *vma);
--
cgit v1.2.1
From dd6eecb917938c1b7e505a83df307b3476e7c8bd Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 9 Oct 2014 15:27:57 -0700
Subject: mempolicy: unexport get_vma_policy() and remove its "task" arg
- get_vma_policy(task) is not safe if task != current, remove this
argument.
- get_vma_policy() no longer has callers outside of mempolicy.c,
make it static.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mempolicy.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index e1abe249892a..3d385c81c153 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -137,8 +137,6 @@ struct mempolicy *mpol_shared_policy_lookup(struct shared_policy *sp,
struct mempolicy *get_task_policy(struct task_struct *p);
struct mempolicy *__get_vma_policy(struct vm_area_struct *vma,
unsigned long addr);
-struct mempolicy *get_vma_policy(struct task_struct *tsk,
- struct vm_area_struct *vma, unsigned long addr);
bool vma_policy_mof(struct vm_area_struct *vma);
extern void numa_default_policy(void);
--
cgit v1.2.1
From 1c93923cc264105418e6ead149c76bd88302eff4 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Thu, 9 Oct 2014 15:27:59 -0700
Subject: include/linux/migrate.h: remove migrate_page #define
This is designed to avoid a few ifdefs in .c files but it's obnoxious
because it can cause unsuspecting "migrate_page" symbols to get turned into
"NULL".
Just nuke it and use the ifdefs.
Cc: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/migrate.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index a2901c414664..b66fd10f4b93 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -82,9 +82,6 @@ static inline int migrate_huge_page_move_mapping(struct address_space *mapping,
return -ENOSYS;
}
-/* Possible settings for the migrate_page() method in address_operations */
-#define migrate_page NULL
-
#endif /* CONFIG_MIGRATION */
#ifdef CONFIG_NUMA_BALANCING
--
cgit v1.2.1
From 0bf55139782db1fa96af66e37cc84afde18443ef Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Thu, 9 Oct 2014 15:28:06 -0700
Subject: mm: introduce dump_vma
Introduce a helper to dump information about a VMA, this also makes
dump_page_flags more generic and re-uses that so the output looks very
similar to dump_page:
[ 61.903437] vma ffff88070f88be00 start 00007fff25970000 end 00007fff25992000
[ 61.903437] next ffff88070facd600 prev ffff88070face400 mm ffff88070fade000
[ 61.903437] prot 8000000000000025 anon_vma ffff88070fa1e200 vm_ops (null)
[ 61.903437] pgoff 7ffffffdd file (null) private_data (null)
[ 61.909129] flags: 0x100173(read|write|mayread|maywrite|mayexec|growsdown|account)
[akpm@linux-foundation.org: make dump_vma() require CONFIG_DEBUG_VM]
[swarren@nvidia.com: fix dump_vma() compilation]
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michel Lespinasse <walken@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mmdebug.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
index 2f348d02f640..dfb93333fc62 100644
--- a/include/linux/mmdebug.h
+++ b/include/linux/mmdebug.h
@@ -4,10 +4,12 @@
#include <linux/stringify.h>
struct page;
+struct vm_area_struct;
extern void dump_page(struct page *page, const char *reason);
extern void dump_page_badflags(struct page *page, const char *reason,
unsigned long badflags);
+void dump_vma(const struct vm_area_struct *vma);
#ifdef CONFIG_DEBUG_VM
#define VM_BUG_ON(cond) BUG_ON(cond)
--
cgit v1.2.1
From fa3759ccd5651c4235f572302d58c8ec9ddf1c4b Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Thu, 9 Oct 2014 15:28:08 -0700
Subject: mm: introduce VM_BUG_ON_VMA
Very similar to VM_BUG_ON_PAGE but dumps VMA information instead.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michel Lespinasse <walken@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mmdebug.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
index dfb93333fc62..569e4c8d0ebb 100644
--- a/include/linux/mmdebug.h
+++ b/include/linux/mmdebug.h
@@ -20,12 +20,20 @@ void dump_vma(const struct vm_area_struct *vma);
BUG(); \
} \
} while (0)
+#define VM_BUG_ON_VMA(cond, vma) \
+ do { \
+ if (unlikely(cond)) { \
+ dump_vma(vma); \
+ BUG(); \
+ } \
+ } while (0)
#define VM_WARN_ON(cond) WARN_ON(cond)
#define VM_WARN_ON_ONCE(cond) WARN_ON_ONCE(cond)
#define VM_WARN_ONCE(cond, format...) WARN_ONCE(cond, format)
#else
#define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_BUG_ON_PAGE(cond, page) VM_BUG_ON(cond)
+#define VM_BUG_ON_VMA(cond, vma) VM_BUG_ON(cond)
#define VM_WARN_ON(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ONCE(cond, format...) BUILD_BUG_ON_INVALID(cond)
--
cgit v1.2.1
From 81d1b09c6be66afac7d41ee52279d9bccbce56d8 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Thu, 9 Oct 2014 15:28:10 -0700
Subject: mm: convert a few VM_BUG_ON callers to VM_BUG_ON_VMA
Trivially convert a few VM_BUG_ON calls to VM_BUG_ON_VMA to extract
more information when they trigger.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michel Lespinasse <walken@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/huge_mm.h | 2 +-
include/linux/rmap.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 63579cb8d3dc..ad9051bab267 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -132,7 +132,7 @@ extern int __pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
static inline int pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
spinlock_t **ptl)
{
- VM_BUG_ON(!rwsem_is_locked(&vma->vm_mm->mmap_sem));
+ VM_BUG_ON_VMA(!rwsem_is_locked(&vma->vm_mm->mmap_sem), vma);
if (pmd_trans_huge(*pmd))
return __pmd_trans_huge_lock(pmd, vma, ptl);
else
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index be574506e6a9..c0c2bce6b0b7 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -150,7 +150,7 @@ int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
static inline void anon_vma_merge(struct vm_area_struct *vma,
struct vm_area_struct *next)
{
- VM_BUG_ON(vma->anon_vma != next->anon_vma);
+ VM_BUG_ON_VMA(vma->anon_vma != next->anon_vma, vma);
unlink_anon_vmas(next);
}
--
cgit v1.2.1
From 5705465174686d007473e017b76c4b64b44aa690 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Thu, 9 Oct 2014 15:28:17 -0700
Subject: mm: clean up zone flags
Page reclaim tests zone_is_reclaim_dirty(), but the site that actually
sets this state does zone_set_flag(zone, ZONE_TAIL_LRU_DIRTY), sending the
reader through layers indirection just to track down a simple bit.
Remove all zone flag wrappers and just use bitops against zone->flags
directly. It's just as readable and the lines are barely any longer.
Also rename ZONE_TAIL_LRU_DIRTY to ZONE_DIRTY to match ZONE_WRITEBACK, and
remove the zone_flags_t typedef.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mmzone.h | 51 +++-----------------------------------------------
1 file changed, 3 insertions(+), 48 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 318df7051850..48bf12ef6620 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -521,13 +521,13 @@ struct zone {
atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
} ____cacheline_internodealigned_in_smp;
-typedef enum {
+enum zone_flags {
ZONE_RECLAIM_LOCKED, /* prevents concurrent reclaim */
ZONE_OOM_LOCKED, /* zone is in OOM killer zonelist */
ZONE_CONGESTED, /* zone has many dirty pages backed by
* a congested BDI
*/
- ZONE_TAIL_LRU_DIRTY, /* reclaim scanning has recently found
+ ZONE_DIRTY, /* reclaim scanning has recently found
* many dirty file pages at the tail
* of the LRU.
*/
@@ -535,52 +535,7 @@ typedef enum {
* many pages under writeback
*/
ZONE_FAIR_DEPLETED, /* fair zone policy batch depleted */
-} zone_flags_t;
-
-static inline void zone_set_flag(struct zone *zone, zone_flags_t flag)
-{
- set_bit(flag, &zone->flags);
-}
-
-static inline int zone_test_and_set_flag(struct zone *zone, zone_flags_t flag)
-{
- return test_and_set_bit(flag, &zone->flags);
-}
-
-static inline void zone_clear_flag(struct zone *zone, zone_flags_t flag)
-{
- clear_bit(flag, &zone->flags);
-}
-
-static inline int zone_is_reclaim_congested(const struct zone *zone)
-{
- return test_bit(ZONE_CONGESTED, &zone->flags);
-}
-
-static inline int zone_is_reclaim_dirty(const struct zone *zone)
-{
- return test_bit(ZONE_TAIL_LRU_DIRTY, &zone->flags);
-}
-
-static inline int zone_is_reclaim_writeback(const struct zone *zone)
-{
- return test_bit(ZONE_WRITEBACK, &zone->flags);
-}
-
-static inline int zone_is_reclaim_locked(const struct zone *zone)
-{
- return test_bit(ZONE_RECLAIM_LOCKED, &zone->flags);
-}
-
-static inline int zone_is_fair_depleted(const struct zone *zone)
-{
- return test_bit(ZONE_FAIR_DEPLETED, &zone->flags);
-}
-
-static inline int zone_is_oom_locked(const struct zone *zone)
-{
- return test_bit(ZONE_OOM_LOCKED, &zone->flags);
-}
+};
static inline unsigned long zone_end_pfn(const struct zone *zone)
{
--
cgit v1.2.1
From 934f3072c17cc8886f4c043b47eeeb1b12f8de33 Mon Sep 17 00:00:00 2001
From: Junxiao Bi <junxiao.bi@oracle.com>
Date: Thu, 9 Oct 2014 15:28:23 -0700
Subject: mm: clear __GFP_FS when PF_MEMALLOC_NOIO is set
commit 21caf2fc1931 ("mm: teach mm by current context info to not do I/O
during memory allocation") introduces PF_MEMALLOC_NOIO flag to avoid doing
I/O inside memory allocation, __GFP_IO is cleared when this flag is set,
but __GFP_FS implies __GFP_IO, it should also be cleared. Or it may still
run into I/O, like in superblock shrinker. And this will make the kernel
run into the deadlock case described in that commit.
See Dave Chinner's comment about io in superblock shrinker:
Filesystem shrinkers do indeed perform IO from the superblock shrinker and
have for years. Even clean inodes can require IO before they can be freed
- e.g. on an orphan list, need truncation of post-eof blocks, need to
wait for ordered operations to complete before it can be freed, etc.
IOWs, Ext4, btrfs and XFS all can issue and/or block on arbitrary amounts
of IO in the superblock shrinker context. XFS, in particular, has been
doing transactions and IO from the VFS inode cache shrinker since it was
first introduced....
Fix this by clearing __GFP_FS in memalloc_noio_flags(), this function has
masked all the gfp_mask that will be passed into fs for the processes
setting PF_MEMALLOC_NOIO in the direct reclaim path.
v1 thread at: https://lkml.org/lkml/2014/9/3/32
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: joyce.xue <xuejiufei@huawei.com>
Cc: Ming Lei <ming.lei@canonical.com>
Cc: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/sched.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9c6353d9e63a..5e63ba59258c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1935,11 +1935,13 @@ extern void thread_group_cputime_adjusted(struct task_struct *p, cputime_t *ut,
#define tsk_used_math(p) ((p)->flags & PF_USED_MATH)
#define used_math() tsk_used_math(current)
-/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags */
+/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags
+ * __GFP_FS is also cleared as it implies __GFP_IO.
+ */
static inline gfp_t memalloc_noio_flags(gfp_t flags)
{
if (unlikely(current->flags & PF_MEMALLOC_NOIO))
- flags &= ~__GFP_IO;
+ flags &= ~(__GFP_IO | __GFP_FS);
return flags;
}
--
cgit v1.2.1
From 31c9afa6db122a5c7a7843278aaf77dd08ea6e98 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Thu, 9 Oct 2014 15:28:37 -0700
Subject: mm: introduce VM_BUG_ON_MM
Very similar to VM_BUG_ON_PAGE and VM_BUG_ON_VMA, dump struct_mm when the
bug is hit.
[akpm@linux-foundation.org: coding-style fixes]
[mhocko@suse.cz: fix build]
[mhocko@suse.cz: fix build some more]
[akpm@linux-foundation.org: do strange things to avoid doing strange things for the comma separators]
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mmdebug.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
index 569e4c8d0ebb..877ef226f90f 100644
--- a/include/linux/mmdebug.h
+++ b/include/linux/mmdebug.h
@@ -5,11 +5,13 @@
struct page;
struct vm_area_struct;
+struct mm_struct;
extern void dump_page(struct page *page, const char *reason);
extern void dump_page_badflags(struct page *page, const char *reason,
unsigned long badflags);
void dump_vma(const struct vm_area_struct *vma);
+void dump_mm(const struct mm_struct *mm);
#ifdef CONFIG_DEBUG_VM
#define VM_BUG_ON(cond) BUG_ON(cond)
@@ -27,6 +29,13 @@ void dump_vma(const struct vm_area_struct *vma);
BUG(); \
} \
} while (0)
+#define VM_BUG_ON_MM(cond, mm) \
+ do { \
+ if (unlikely(cond)) { \
+ dump_mm(mm); \
+ BUG(); \
+ } \
+ } while (0)
#define VM_WARN_ON(cond) WARN_ON(cond)
#define VM_WARN_ON_ONCE(cond) WARN_ON_ONCE(cond)
#define VM_WARN_ONCE(cond, format...) WARN_ONCE(cond, format)
@@ -34,6 +43,7 @@ void dump_vma(const struct vm_area_struct *vma);
#define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_BUG_ON_PAGE(cond, page) VM_BUG_ON(cond)
#define VM_BUG_ON_VMA(cond, vma) VM_BUG_ON(cond)
+#define VM_BUG_ON_MM(cond, mm) VM_BUG_ON(cond)
#define VM_WARN_ON(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
#define VM_WARN_ONCE(cond, format...) BUILD_BUG_ON_INVALID(cond)
--
cgit v1.2.1
From 33a690c45b202e4c6483bfd1d93ad8d0f51df2ca Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@parallels.com>
Date: Thu, 9 Oct 2014 15:28:43 -0700
Subject: memcg: move memcg_{alloc,free}_cache_params to slab_common.c
The only reason why they live in memcontrol.c is that we get/put css
reference to the owner memory cgroup in them. However, we can do that in
memcg_{un,}register_cache. OTOH, there are several reasons to move them
to slab_common.c.
First, I think that the less public interface functions we have in
memcontrol.h the better. Since the functions I move don't depend on
memcontrol, I think it's worth making them private to slab, especially
taking into account that the arrays are defined on the slab's side too.
Second, the way how per-memcg arrays are updated looks rather awkward: it
proceeds from memcontrol.c (__memcg_activate_kmem) to slab_common.c
(memcg_update_all_caches) and back to memcontrol.c again
(memcg_update_array_size). In the following patches I move the function
relocating the arrays (memcg_update_array_size) to slab_common.c and
therefore get rid this circular call path. I think we should have the
cache allocation stuff in the same place where we have relocation, because
it's easier to follow the code then. So I move arrays alloc/free
functions to slab_common.c too.
The third point isn't obvious. I'm going to make the list_lru structure
per-memcg to allow targeted kmem reclaim. That means we will have
per-memcg arrays in list_lrus too. It turns out that it's much easier to
update these arrays in list_lru.c rather than in memcontrol.c, because all
the stuff we need is defined there. This patch makes memcg caches arrays
allocation path conform that of the upcoming list_lru.
So let's move these functions to slab_common.c and make them static.
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Glauber Costa <glommer@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 14 --------------
1 file changed, 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index e0752d204d9e..4d17242eeff7 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -440,10 +440,6 @@ void __memcg_kmem_uncharge_pages(struct page *page, int order);
int memcg_cache_id(struct mem_cgroup *memcg);
-int memcg_alloc_cache_params(struct mem_cgroup *memcg, struct kmem_cache *s,
- struct kmem_cache *root_cache);
-void memcg_free_cache_params(struct kmem_cache *s);
-
int memcg_update_cache_size(struct kmem_cache *s, int num_groups);
void memcg_update_array_size(int num_groups);
@@ -574,16 +570,6 @@ static inline int memcg_cache_id(struct mem_cgroup *memcg)
return -1;
}
-static inline int memcg_alloc_cache_params(struct mem_cgroup *memcg,
- struct kmem_cache *s, struct kmem_cache *root_cache)
-{
- return 0;
-}
-
-static inline void memcg_free_cache_params(struct kmem_cache *s)
-{
-}
-
static inline struct kmem_cache *
memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp)
{
--
cgit v1.2.1
From 6f817f4cda68b09621312ec5ba84217bc5e37b3d Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@parallels.com>
Date: Thu, 9 Oct 2014 15:28:47 -0700
Subject: memcg: move memcg_update_cache_size() to slab_common.c
`While growing per memcg caches arrays, we jump between memcontrol.c and
slab_common.c in a weird way:
memcg_alloc_cache_id - memcontrol.c
memcg_update_all_caches - slab_common.c
memcg_update_cache_size - memcontrol.c
There's absolutely no reason why memcg_update_cache_size can't live on the
slab's side though. So let's move it there and settle it comfortably amid
per-memcg cache allocation functions.
Besides, this patch cleans this function up a bit, removing all the
useless comments from it, and renames it to memcg_update_cache_params to
conform to memcg_alloc/free_cache_params, which we already have in
slab_common.c.
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Glauber Costa <glommer@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 4d17242eeff7..19df5d857411 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -440,7 +440,6 @@ void __memcg_kmem_uncharge_pages(struct page *page, int order);
int memcg_cache_id(struct mem_cgroup *memcg);
-int memcg_update_cache_size(struct kmem_cache *s, int num_groups);
void memcg_update_array_size(int num_groups);
struct kmem_cache *
--
cgit v1.2.1
From b70a2a21dc9d4ad455931b53131a0cb4fc01fafe Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Thu, 9 Oct 2014 15:28:56 -0700
Subject: mm: memcontrol: fix transparent huge page allocations under pressure
In a memcg with even just moderate cache pressure, success rates for
transparent huge page allocations drop to zero, wasting a lot of effort
that the allocator puts into assembling these pages.
The reason for this is that the memcg reclaim code was never designed for
higher-order charges. It reclaims in small batches until there is room
for at least one page. Huge page charges only succeed when these batches
add up over a series of huge faults, which is unlikely under any
significant load involving order-0 allocations in the group.
Remove that loop on the memcg side in favor of passing the actual reclaim
goal to direct reclaim, which is already set up and optimized to meet
higher-order goals efficiently.
This brings memcg's THP policy in line with the system policy: if the
allocator painstakingly assembles a hugepage, memcg will at least make an
honest effort to charge it. As a result, transparent hugepage allocation
rates amid cache activity are drastically improved:
vanilla patched
pgalloc 4717530.80 ( +0.00%) 4451376.40 ( -5.64%)
pgfault 491370.60 ( +0.00%) 225477.40 ( -54.11%)
pgmajfault 2.00 ( +0.00%) 1.80 ( -6.67%)
thp_fault_alloc 0.00 ( +0.00%) 531.60 (+100.00%)
thp_fault_fallback 749.00 ( +0.00%) 217.40 ( -70.88%)
[ Note: this may in turn increase memory consumption from internal
fragmentation, which is an inherent risk of transparent hugepages.
Some setups may have to adjust the memcg limits accordingly to
accomodate this - or, if the machine is already packed to capacity,
disable the transparent huge page feature. ]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Dave Hansen <dave@sr71.net>
Cc: Greg Thelen <gthelen@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/swap.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/swap.h b/include/linux/swap.h
index ea4f926e6b9b..37a585beef5c 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -327,8 +327,10 @@ extern void lru_cache_add_active_or_unevictable(struct page *page,
extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
gfp_t gfp_mask, nodemask_t *mask);
extern int __isolate_lru_page(struct page *page, isolate_mode_t mode);
-extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem,
- gfp_t gfp_mask, bool noswap);
+extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg,
+ unsigned long nr_pages,
+ gfp_t gfp_mask,
+ bool may_swap);
extern unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem,
gfp_t gfp_mask, bool noswap,
struct zone *zone,
--
cgit v1.2.1
From d6d86c0a7f8ddc5b38cf089222cb1d9540762dc2 Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Date: Thu, 9 Oct 2014 15:29:27 -0700
Subject: mm/balloon_compaction: redesign ballooned pages management
Sasha Levin reported KASAN splash inside isolate_migratepages_range().
Problem is in the function __is_movable_balloon_page() which tests
AS_BALLOON_MAP in page->mapping->flags. This function has no protection
against anonymous pages. As result it tried to check address space flags
inside struct anon_vma.
Further investigation shows more problems in current implementation:
* Special branch in __unmap_and_move() never works:
balloon_page_movable() checks page flags and page_count. In
__unmap_and_move() page is locked, reference counter is elevated, thus
balloon_page_movable() always fails. As a result execution goes to the
normal migration path. virtballoon_migratepage() returns
MIGRATEPAGE_BALLOON_SUCCESS instead of MIGRATEPAGE_SUCCESS,
move_to_new_page() thinks this is an error code and assigns
newpage->mapping to NULL. Newly migrated page lose connectivity with
balloon an all ability for further migration.
* lru_lock erroneously required in isolate_migratepages_range() for
isolation ballooned page. This function releases lru_lock periodically,
this makes migration mostly impossible for some pages.
* balloon_page_dequeue have a tight race with balloon_page_isolate:
balloon_page_isolate could be executed in parallel with dequeue between
picking page from list and locking page_lock. Race is rare because they
use trylock_page() for locking.
This patch fixes all of them.
Instead of fake mapping with special flag this patch uses special state of
page->_mapcount: PAGE_BALLOON_MAPCOUNT_VALUE = -256. Buddy allocator uses
PAGE_BUDDY_MAPCOUNT_VALUE = -128 for similar purpose. Storing mark
directly in struct page makes everything safer and easier.
PagePrivate is used to mark pages present in page list (i.e. not
isolated, like PageLRU for normal pages). It replaces special rules for
reference counter and makes balloon migration similar to migration of
normal pages. This flag is protected by page_lock together with link to
the balloon device.
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Link: http://lkml.kernel.org/p/53E6CEAA.9020105@oracle.com
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: <stable@vger.kernel.org> [3.8+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/balloon_compaction.h | 97 ++++++++++----------------------------
include/linux/migrate.h | 11 +----
include/linux/mm.h | 19 ++++++++
3 files changed, 44 insertions(+), 83 deletions(-)
(limited to 'include')
diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h
index 089743ade734..38aa07d5b81c 100644
--- a/include/linux/balloon_compaction.h
+++ b/include/linux/balloon_compaction.h
@@ -27,10 +27,13 @@
* counter raised only while it is under our special handling;
*
* iii. after the lockless scan step have selected a potential balloon page for
- * isolation, re-test the page->mapping flags and the page ref counter
+ * isolation, re-test the PageBalloon mark and the PagePrivate flag
* under the proper page lock, to ensure isolating a valid balloon page
* (not yet isolated, nor under release procedure)
*
+ * iv. isolation or dequeueing procedure must clear PagePrivate flag under
+ * page lock together with removing page from balloon device page list.
+ *
* The functions provided by this interface are placed to help on coping with
* the aforementioned balloon page corner case, as well as to ensure the simple
* set of exposed rules are satisfied while we are dealing with balloon pages
@@ -71,28 +74,6 @@ static inline void balloon_devinfo_free(struct balloon_dev_info *b_dev_info)
kfree(b_dev_info);
}
-/*
- * balloon_page_free - release a balloon page back to the page free lists
- * @page: ballooned page to be set free
- *
- * This function must be used to properly set free an isolated/dequeued balloon
- * page at the end of a sucessful page migration, or at the balloon driver's
- * page release procedure.
- */
-static inline void balloon_page_free(struct page *page)
-{
- /*
- * Balloon pages always get an extra refcount before being isolated
- * and before being dequeued to help on sorting out fortuite colisions
- * between a thread attempting to isolate and another thread attempting
- * to release the very same balloon page.
- *
- * Before we handle the page back to Buddy, lets drop its extra refcnt.
- */
- put_page(page);
- __free_page(page);
-}
-
#ifdef CONFIG_BALLOON_COMPACTION
extern bool balloon_page_isolate(struct page *page);
extern void balloon_page_putback(struct page *page);
@@ -108,74 +89,33 @@ static inline void balloon_mapping_free(struct address_space *balloon_mapping)
}
/*
- * page_flags_cleared - helper to perform balloon @page ->flags tests.
- *
- * As balloon pages are obtained from buddy and we do not play with page->flags
- * at driver level (exception made when we get the page lock for compaction),
- * we can safely identify a ballooned page by checking if the
- * PAGE_FLAGS_CHECK_AT_PREP page->flags are all cleared. This approach also
- * helps us skip ballooned pages that are locked for compaction or release, thus
- * mitigating their racy check at balloon_page_movable()
- */
-static inline bool page_flags_cleared(struct page *page)
-{
- return !(page->flags & PAGE_FLAGS_CHECK_AT_PREP);
-}
-
-/*
- * __is_movable_balloon_page - helper to perform @page mapping->flags tests
+ * __is_movable_balloon_page - helper to perform @page PageBalloon tests
*/
static inline bool __is_movable_balloon_page(struct page *page)
{
- struct address_space *mapping = page->mapping;
- return mapping_balloon(mapping);
+ return PageBalloon(page);
}
/*
- * balloon_page_movable - test page->mapping->flags to identify balloon pages
- * that can be moved by compaction/migration.
- *
- * This function is used at core compaction's page isolation scheme, therefore
- * most pages exposed to it are not enlisted as balloon pages and so, to avoid
- * undesired side effects like racing against __free_pages(), we cannot afford
- * holding the page locked while testing page->mapping->flags here.
+ * balloon_page_movable - test PageBalloon to identify balloon pages
+ * and PagePrivate to check that the page is not
+ * isolated and can be moved by compaction/migration.
*
* As we might return false positives in the case of a balloon page being just
- * released under us, the page->mapping->flags need to be re-tested later,
- * under the proper page lock, at the functions that will be coping with the
- * balloon page case.
+ * released under us, this need to be re-tested later, under the page lock.
*/
static inline bool balloon_page_movable(struct page *page)
{
- /*
- * Before dereferencing and testing mapping->flags, let's make sure
- * this is not a page that uses ->mapping in a different way
- */
- if (page_flags_cleared(page) && !page_mapped(page) &&
- page_count(page) == 1)
- return __is_movable_balloon_page(page);
-
- return false;
+ return PageBalloon(page) && PagePrivate(page);
}
/*
* isolated_balloon_page - identify an isolated balloon page on private
* compaction/migration page lists.
- *
- * After a compaction thread isolates a balloon page for migration, it raises
- * the page refcount to prevent concurrent compaction threads from re-isolating
- * the same page. For that reason putback_movable_pages(), or other routines
- * that need to identify isolated balloon pages on private pagelists, cannot
- * rely on balloon_page_movable() to accomplish the task.
*/
static inline bool isolated_balloon_page(struct page *page)
{
- /* Already isolated balloon pages, by default, have a raised refcount */
- if (page_flags_cleared(page) && !page_mapped(page) &&
- page_count(page) >= 2)
- return __is_movable_balloon_page(page);
-
- return false;
+ return PageBalloon(page);
}
/*
@@ -192,6 +132,8 @@ static inline void balloon_page_insert(struct page *page,
struct address_space *mapping,
struct list_head *head)
{
+ __SetPageBalloon(page);
+ SetPagePrivate(page);
page->mapping = mapping;
list_add(&page->lru, head);
}
@@ -206,8 +148,12 @@ static inline void balloon_page_insert(struct page *page,
*/
static inline void balloon_page_delete(struct page *page)
{
+ __ClearPageBalloon(page);
page->mapping = NULL;
- list_del(&page->lru);
+ if (PagePrivate(page)) {
+ ClearPagePrivate(page);
+ list_del(&page->lru);
+ }
}
/*
@@ -258,6 +204,11 @@ static inline void balloon_page_delete(struct page *page)
list_del(&page->lru);
}
+static inline bool __is_movable_balloon_page(struct page *page)
+{
+ return false;
+}
+
static inline bool balloon_page_movable(struct page *page)
{
return false;
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index b66fd10f4b93..01aad3ed89ec 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -13,18 +13,9 @@ typedef void free_page_t(struct page *page, unsigned long private);
* Return values from addresss_space_operations.migratepage():
* - negative errno on page migration failure;
* - zero on page migration success;
- *
- * The balloon page migration introduces this special case where a 'distinct'
- * return code is used to flag a successful page migration to unmap_and_move().
- * This approach is necessary because page migration can race against balloon
- * deflation procedure, and for such case we could introduce a nasty page leak
- * if a successfully migrated balloon page gets released concurrently with
- * migration's unmap_and_move() wrap-up steps.
*/
#define MIGRATEPAGE_SUCCESS 0
-#define MIGRATEPAGE_BALLOON_SUCCESS 1 /* special ret code for balloon page
- * sucessful migration case.
- */
+
enum migrate_reason {
MR_COMPACTION,
MR_MEMORY_FAILURE,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 4d814aa97785..fa0d74e06428 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -554,6 +554,25 @@ static inline void __ClearPageBuddy(struct page *page)
atomic_set(&page->_mapcount, -1);
}
+#define PAGE_BALLOON_MAPCOUNT_VALUE (-256)
+
+static inline int PageBalloon(struct page *page)
+{
+ return atomic_read(&page->_mapcount) == PAGE_BALLOON_MAPCOUNT_VALUE;
+}
+
+static inline void __SetPageBalloon(struct page *page)
+{
+ VM_BUG_ON_PAGE(atomic_read(&page->_mapcount) != -1, page);
+ atomic_set(&page->_mapcount, PAGE_BALLOON_MAPCOUNT_VALUE);
+}
+
+static inline void __ClearPageBalloon(struct page *page)
+{
+ VM_BUG_ON_PAGE(!PageBalloon(page), page);
+ atomic_set(&page->_mapcount, -1);
+}
+
void put_page(struct page *page);
void put_pages_list(struct list_head *pages);
--
cgit v1.2.1
From 9d1ba8056474a208ed9efb7e58cd014795d9f818 Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Date: Thu, 9 Oct 2014 15:29:29 -0700
Subject: mm/balloon_compaction: remove balloon mapping and flag AS_BALLOON_MAP
Now ballooned pages are detected using PageBalloon(). Fake mapping is no
longer required. This patch links ballooned pages to balloon device using
field page->private instead of page->mapping. Also this patch embeds
balloon_dev_info directly into struct virtio_balloon.
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/balloon_compaction.h | 72 ++++++++++----------------------------
include/linux/pagemap.h | 18 +---------
2 files changed, 20 insertions(+), 70 deletions(-)
(limited to 'include')
diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h
index 38aa07d5b81c..bc3d2985cc9a 100644
--- a/include/linux/balloon_compaction.h
+++ b/include/linux/balloon_compaction.h
@@ -57,21 +57,22 @@
* balloon driver as a page book-keeper for its registered balloon devices.
*/
struct balloon_dev_info {
- void *balloon_device; /* balloon device descriptor */
- struct address_space *mapping; /* balloon special page->mapping */
unsigned long isolated_pages; /* # of isolated pages for migration */
spinlock_t pages_lock; /* Protection to pages list */
struct list_head pages; /* Pages enqueued & handled to Host */
+ int (*migratepage)(struct balloon_dev_info *, struct page *newpage,
+ struct page *page, enum migrate_mode mode);
};
extern struct page *balloon_page_enqueue(struct balloon_dev_info *b_dev_info);
extern struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info);
-extern struct balloon_dev_info *balloon_devinfo_alloc(
- void *balloon_dev_descriptor);
-static inline void balloon_devinfo_free(struct balloon_dev_info *b_dev_info)
+static inline void balloon_devinfo_init(struct balloon_dev_info *balloon)
{
- kfree(b_dev_info);
+ balloon->isolated_pages = 0;
+ spin_lock_init(&balloon->pages_lock);
+ INIT_LIST_HEAD(&balloon->pages);
+ balloon->migratepage = NULL;
}
#ifdef CONFIG_BALLOON_COMPACTION
@@ -79,14 +80,6 @@ extern bool balloon_page_isolate(struct page *page);
extern void balloon_page_putback(struct page *page);
extern int balloon_page_migrate(struct page *newpage,
struct page *page, enum migrate_mode mode);
-extern struct address_space
-*balloon_mapping_alloc(struct balloon_dev_info *b_dev_info,
- const struct address_space_operations *a_ops);
-
-static inline void balloon_mapping_free(struct address_space *balloon_mapping)
-{
- kfree(balloon_mapping);
-}
/*
* __is_movable_balloon_page - helper to perform @page PageBalloon tests
@@ -120,27 +113,25 @@ static inline bool isolated_balloon_page(struct page *page)
/*
* balloon_page_insert - insert a page into the balloon's page list and make
- * the page->mapping assignment accordingly.
+ * the page->private assignment accordingly.
+ * @balloon : pointer to balloon device
* @page : page to be assigned as a 'balloon page'
- * @mapping : allocated special 'balloon_mapping'
- * @head : balloon's device page list head
*
* Caller must ensure the page is locked and the spin_lock protecting balloon
* pages list is held before inserting a page into the balloon device.
*/
-static inline void balloon_page_insert(struct page *page,
- struct address_space *mapping,
- struct list_head *head)
+static inline void balloon_page_insert(struct balloon_dev_info *balloon,
+ struct page *page)
{
__SetPageBalloon(page);
SetPagePrivate(page);
- page->mapping = mapping;
- list_add(&page->lru, head);
+ set_page_private(page, (unsigned long)balloon);
+ list_add(&page->lru, &balloon->pages);
}
/*
* balloon_page_delete - delete a page from balloon's page list and clear
- * the page->mapping assignement accordingly.
+ * the page->private assignement accordingly.
* @page : page to be released from balloon's page list
*
* Caller must ensure the page is locked and the spin_lock protecting balloon
@@ -149,7 +140,7 @@ static inline void balloon_page_insert(struct page *page,
static inline void balloon_page_delete(struct page *page)
{
__ClearPageBalloon(page);
- page->mapping = NULL;
+ set_page_private(page, 0);
if (PagePrivate(page)) {
ClearPagePrivate(page);
list_del(&page->lru);
@@ -162,11 +153,7 @@ static inline void balloon_page_delete(struct page *page)
*/
static inline struct balloon_dev_info *balloon_page_device(struct page *page)
{
- struct address_space *mapping = page->mapping;
- if (likely(mapping))
- return mapping->private_data;
-
- return NULL;
+ return (struct balloon_dev_info *)page_private(page);
}
static inline gfp_t balloon_mapping_gfp_mask(void)
@@ -174,29 +161,12 @@ static inline gfp_t balloon_mapping_gfp_mask(void)
return GFP_HIGHUSER_MOVABLE;
}
-static inline bool balloon_compaction_check(void)
-{
- return true;
-}
-
#else /* !CONFIG_BALLOON_COMPACTION */
-static inline void *balloon_mapping_alloc(void *balloon_device,
- const struct address_space_operations *a_ops)
+static inline void balloon_page_insert(struct balloon_dev_info *balloon,
+ struct page *page)
{
- return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void balloon_mapping_free(struct address_space *balloon_mapping)
-{
- return;
-}
-
-static inline void balloon_page_insert(struct page *page,
- struct address_space *mapping,
- struct list_head *head)
-{
- list_add(&page->lru, head);
+ list_add(&page->lru, &balloon->pages);
}
static inline void balloon_page_delete(struct page *page)
@@ -240,9 +210,5 @@ static inline gfp_t balloon_mapping_gfp_mask(void)
return GFP_HIGHUSER;
}
-static inline bool balloon_compaction_check(void)
-{
- return false;
-}
#endif /* CONFIG_BALLOON_COMPACTION */
#endif /* _LINUX_BALLOON_COMPACTION_H */
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 19191d39c4f3..7ea069cd3257 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -24,8 +24,7 @@ enum mapping_flags {
AS_ENOSPC = __GFP_BITS_SHIFT + 1, /* ENOSPC on async write */
AS_MM_ALL_LOCKS = __GFP_BITS_SHIFT + 2, /* under mm_take_all_locks() */
AS_UNEVICTABLE = __GFP_BITS_SHIFT + 3, /* e.g., ramdisk, SHM_LOCK */
- AS_BALLOON_MAP = __GFP_BITS_SHIFT + 4, /* balloon page special map */
- AS_EXITING = __GFP_BITS_SHIFT + 5, /* final truncate in progress */
+ AS_EXITING = __GFP_BITS_SHIFT + 4, /* final truncate in progress */
};
static inline void mapping_set_error(struct address_space *mapping, int error)
@@ -55,21 +54,6 @@ static inline int mapping_unevictable(struct address_space *mapping)
return !!mapping;
}
-static inline void mapping_set_balloon(struct address_space *mapping)
-{
- set_bit(AS_BALLOON_MAP, &mapping->flags);
-}
-
-static inline void mapping_clear_balloon(struct address_space *mapping)
-{
- clear_bit(AS_BALLOON_MAP, &mapping->flags);
-}
-
-static inline int mapping_balloon(struct address_space *mapping)
-{
- return mapping && test_bit(AS_BALLOON_MAP, &mapping->flags);
-}
-
static inline void mapping_set_exiting(struct address_space *mapping)
{
set_bit(AS_EXITING, &mapping->flags);
--
cgit v1.2.1
From 09316c09dde33aae14f34489d9e3d243ec0d5938 Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Date: Thu, 9 Oct 2014 15:29:32 -0700
Subject: mm/balloon_compaction: add vmstat counters and kpageflags bit
Always mark pages with PageBalloon even if balloon compaction is disabled
and expose this mark in /proc/kpageflags as KPF_BALLOON.
Also this patch adds three counters into /proc/vmstat: "balloon_inflate",
"balloon_deflate" and "balloon_migrate". They accumulate balloon
activity. Current size of balloon is (balloon_inflate - balloon_deflate)
pages.
All generic balloon code now gathered under option CONFIG_MEMORY_BALLOON.
It should be selected by ballooning driver which wants use this feature.
Currently virtio-balloon is the only user.
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/balloon_compaction.h | 2 ++
include/linux/vm_event_item.h | 7 +++++++
include/uapi/linux/kernel-page-flags.h | 1 +
3 files changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h
index bc3d2985cc9a..9b0a15d06a4f 100644
--- a/include/linux/balloon_compaction.h
+++ b/include/linux/balloon_compaction.h
@@ -166,11 +166,13 @@ static inline gfp_t balloon_mapping_gfp_mask(void)
static inline void balloon_page_insert(struct balloon_dev_info *balloon,
struct page *page)
{
+ __SetPageBalloon(page);
list_add(&page->lru, &balloon->pages);
}
static inline void balloon_page_delete(struct page *page)
{
+ __ClearPageBalloon(page);
list_del(&page->lru);
}
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index ced92345c963..730334cdf037 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -72,6 +72,13 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
THP_ZERO_PAGE_ALLOC,
THP_ZERO_PAGE_ALLOC_FAILED,
#endif
+#ifdef CONFIG_MEMORY_BALLOON
+ BALLOON_INFLATE,
+ BALLOON_DEFLATE,
+#ifdef CONFIG_BALLOON_COMPACTION
+ BALLOON_MIGRATE,
+#endif
+#endif
#ifdef CONFIG_DEBUG_TLBFLUSH
#ifdef CONFIG_SMP
NR_TLB_REMOTE_FLUSH, /* cpu tried to flush others' tlbs */
diff --git a/include/uapi/linux/kernel-page-flags.h b/include/uapi/linux/kernel-page-flags.h
index 5116a0e48172..2f96d233c980 100644
--- a/include/uapi/linux/kernel-page-flags.h
+++ b/include/uapi/linux/kernel-page-flags.h
@@ -31,6 +31,7 @@
#define KPF_KSM 21
#define KPF_THP 22
+#define KPF_BALLOON 23
#endif /* _UAPILINUX_KERNEL_PAGE_FLAGS_H */
--
cgit v1.2.1
From 722cdc17232f0f684011407f7cf3c40d39457971 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@kernel.org>
Date: Thu, 9 Oct 2014 15:29:50 -0700
Subject: zsmalloc: change return value unit of zs_get_total_size_bytes
zs_get_total_size_bytes returns a amount of memory zsmalloc consumed with
*byte unit* but zsmalloc operates *page unit* rather than byte unit so
let's change the API so benefit we could get is that reduce unnecessary
overhead (ie, change page unit with byte unit) in zsmalloc.
Since return type is pages, "zs_get_total_pages" is better than
"zs_get_total_size_bytes".
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Dan Streetman <ddstreet@ieee.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: <juno.choi@lge.com>
Cc: <seungho1.park@lge.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: David Horner <ds2horner@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/zsmalloc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/zsmalloc.h b/include/linux/zsmalloc.h
index e44d634e7fb7..05c214760977 100644
--- a/include/linux/zsmalloc.h
+++ b/include/linux/zsmalloc.h
@@ -46,6 +46,6 @@ void *zs_map_object(struct zs_pool *pool, unsigned long handle,
enum zs_mapmode mm);
void zs_unmap_object(struct zs_pool *pool, unsigned long handle);
-u64 zs_get_total_size_bytes(struct zs_pool *pool);
+unsigned long zs_get_total_pages(struct zs_pool *pool);
#endif
--
cgit v1.2.1
From 2e1d06e1c05af9dbe8a3bfddeefbf041ca637fff Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Thu, 9 Oct 2014 15:30:13 -0700
Subject: include/linux/kernel.h: rewrite min3, max3 and clamp using min and
max
It appears that gcc is better at optimising a double call to min and max
rather than open coded min3 and max3. This can be observed here:
$ cat min-max.c
#define min(x, y) ({ \
typeof(x) _min1 = (x); \
typeof(y) _min2 = (y); \
(void) (&_min1 == &_min2); \
_min1 < _min2 ? _min1 : _min2; })
#define min3(x, y, z) ({ \
typeof(x) _min1 = (x); \
typeof(y) _min2 = (y); \
typeof(z) _min3 = (z); \
(void) (&_min1 == &_min2); \
(void) (&_min1 == &_min3); \
_min1 < _min2 ? (_min1 < _min3 ? _min1 : _min3) : \
(_min2 < _min3 ? _min2 : _min3); })
int fmin3(int x, int y, int z) { return min3(x, y, z); }
int fmin2(int x, int y, int z) { return min(min(x, y), z); }
$ gcc -O2 -o min-max.s -S min-max.c; cat min-max.s
.file "min-max.c"
.text
.p2align 4,,15
.globl fmin3
.type fmin3, @function
fmin3:
.LFB0:
.cfi_startproc
cmpl %esi, %edi
jl .L5
cmpl %esi, %edx
movl %esi, %eax
cmovle %edx, %eax
ret
.p2align 4,,10
.p2align 3
.L5:
cmpl %edi, %edx
movl %edi, %eax
cmovle %edx, %eax
ret
.cfi_endproc
.LFE0:
.size fmin3, .-fmin3
.p2align 4,,15
.globl fmin2
.type fmin2, @function
fmin2:
.LFB1:
.cfi_startproc
cmpl %edi, %esi
movl %edx, %eax
cmovle %esi, %edi
cmpl %edx, %edi
cmovle %edi, %eax
ret
.cfi_endproc
.LFE1:
.size fmin2, .-fmin2
.ident "GCC: (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3"
.section .note.GNU-stack,"",@progbits
fmin3 function, which uses open-coded min3 macro, is compiled into total
of ten instructions including a conditional branch, whereas fmin2
function, which uses two calls to min2 macro, is compiled into six
instructions with no branches.
Similarly, open-coded clamp produces the same code as clamp using min and
max macros, but the latter is much shorter:
$ cat clamp.c
#define clamp(val, min, max) ({ \
typeof(val) __val = (val); \
typeof(min) __min = (min); \
typeof(max) __max = (max); \
(void) (&__val == &__min); \
(void) (&__val == &__max); \
__val = __val < __min ? __min: __val; \
__val > __max ? __max: __val; })
#define min(x, y) ({ \
typeof(x) _min1 = (x); \
typeof(y) _min2 = (y); \
(void) (&_min1 == &_min2); \
_min1 < _min2 ? _min1 : _min2; })
#define max(x, y) ({ \
typeof(x) _max1 = (x); \
typeof(y) _max2 = (y); \
(void) (&_max1 == &_max2); \
_max1 > _max2 ? _max1 : _max2; })
int fclamp(int v, int min, int max) { return clamp(v, min, max); }
int fclampmm(int v, int min, int max) { return min(max(v, min), max); }
$ gcc -O2 -o clamp.s -S clamp.c; cat clamp.s
.file "clamp.c"
.text
.p2align 4,,15
.globl fclamp
.type fclamp, @function
fclamp:
.LFB0:
.cfi_startproc
cmpl %edi, %esi
movl %edx, %eax
cmovge %esi, %edi
cmpl %edx, %edi
cmovle %edi, %eax
ret
.cfi_endproc
.LFE0:
.size fclamp, .-fclamp
.p2align 4,,15
.globl fclampmm
.type fclampmm, @function
fclampmm:
.LFB1:
.cfi_startproc
cmpl %edi, %esi
cmovge %esi, %edi
cmpl %edi, %edx
movl %edi, %eax
cmovle %edx, %eax
ret
.cfi_endproc
.LFE1:
.size fclampmm, .-fclampmm
.ident "GCC: (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3"
.section .note.GNU-stack,"",@progbits
Linux mpn-glaptop 3.13.0-29-generic #53~precise1-Ubuntu SMP Wed Jun 4 22:06:25 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-rwx------ 1 mpn eng 51224656 Jun 17 14:15 vmlinux.before
-rwx------ 1 mpn eng 51224608 Jun 17 13:57 vmlinux.after
48 bytes reduction. The do_fault_around was a few instruction shorter
and as far as I can tell saved 12 bytes on the stack, i.e.:
$ grep -e rsp -e pop -e push do_fault_around.*
do_fault_around.before.s:push %rbp
do_fault_around.before.s:mov %rsp,%rbp
do_fault_around.before.s:push %r13
do_fault_around.before.s:push %r12
do_fault_around.before.s:push %rbx
do_fault_around.before.s:sub $0x38,%rsp
do_fault_around.before.s:add $0x38,%rsp
do_fault_around.before.s:pop %rbx
do_fault_around.before.s:pop %r12
do_fault_around.before.s:pop %r13
do_fault_around.before.s:pop %rbp
do_fault_around.after.s:push %rbp
do_fault_around.after.s:mov %rsp,%rbp
do_fault_around.after.s:push %r12
do_fault_around.after.s:push %rbx
do_fault_around.after.s:sub $0x30,%rsp
do_fault_around.after.s:add $0x30,%rsp
do_fault_around.after.s:pop %rbx
do_fault_around.after.s:pop %r12
do_fault_around.after.s:pop %rbp
or here side-by-side:
Before After
push %rbp push %rbp
mov %rsp,%rbp mov %rsp,%rbp
push %r13
push %r12 push %r12
push %rbx push %rbx
sub $0x38,%rsp sub $0x30,%rsp
add $0x38,%rsp add $0x30,%rsp
pop %rbx pop %rbx
pop %r12 pop %r12
pop %r13
pop %rbp pop %rbp
There are also fewer branches:
$ grep ^j do_fault_around.*
do_fault_around.before.s:jae ffffffff812079b7
do_fault_around.before.s:jmp ffffffff812079c5
do_fault_around.before.s:jmp ffffffff81207a14
do_fault_around.before.s:ja ffffffff812079f9
do_fault_around.before.s:jb ffffffff81207a10
do_fault_around.before.s:jmp ffffffff81207a63
do_fault_around.before.s:jne ffffffff812079df
do_fault_around.after.s:jmp ffffffff812079fd
do_fault_around.after.s:ja ffffffff812079e2
do_fault_around.after.s:jb ffffffff812079f9
do_fault_around.after.s:jmp ffffffff81207a4c
do_fault_around.after.s:jne ffffffff812079c8
And here's with allyesconfig on a different machine:
$ uname -a; gcc --version; ls -l vmlinux.*
Linux erwin 3.14.7-mn #54 SMP Sun Jun 15 11:25:08 CEST 2014 x86_64 AMD Phenom(tm) II X3 710 Processor AuthenticAMD GNU/Linux
gcc (GCC) 4.8.3
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-rwx------ 1 mpn eng 437027411 Jun 20 16:04 vmlinux.before
-rwx------ 1 mpn eng 437026881 Jun 20 15:30 vmlinux.after
530 bytes reduction.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Hagen Paul Pfeifer <hagen@jauu.net>
Cc: David Rientjes <rientjes@google.com>
Cc: "Rustad, Mark D" <mark.d.rustad@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/kernel.h | 32 +++++---------------------------
1 file changed, 5 insertions(+), 27 deletions(-)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 95624bed87ef..aa2a0cb57f50 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -715,23 +715,8 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
(void) (&_max1 == &_max2); \
_max1 > _max2 ? _max1 : _max2; })
-#define min3(x, y, z) ({ \
- typeof(x) _min1 = (x); \
- typeof(y) _min2 = (y); \
- typeof(z) _min3 = (z); \
- (void) (&_min1 == &_min2); \
- (void) (&_min1 == &_min3); \
- _min1 < _min2 ? (_min1 < _min3 ? _min1 : _min3) : \
- (_min2 < _min3 ? _min2 : _min3); })
-
-#define max3(x, y, z) ({ \
- typeof(x) _max1 = (x); \
- typeof(y) _max2 = (y); \
- typeof(z) _max3 = (z); \
- (void) (&_max1 == &_max2); \
- (void) (&_max1 == &_max3); \
- _max1 > _max2 ? (_max1 > _max3 ? _max1 : _max3) : \
- (_max2 > _max3 ? _max2 : _max3); })
+#define min3(x, y, z) min((typeof(x))min(x, y), z)
+#define max3(x, y, z) max((typeof(x))max(x, y), z)
/**
* min_not_zero - return the minimum that is _not_ zero, unless both are zero
@@ -746,20 +731,13 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
/**
* clamp - return a value clamped to a given range with strict typechecking
* @val: current value
- * @min: minimum allowable value
- * @max: maximum allowable value
+ * @lo: lowest allowable value
+ * @hi: highest allowable value
*
* This macro does strict typechecking of min/max to make sure they are of the
* same type as val. See the unnecessary pointer comparisons.
*/
-#define clamp(val, min, max) ({ \
- typeof(val) __val = (val); \
- typeof(min) __min = (min); \
- typeof(max) __max = (max); \
- (void) (&__val == &__min); \
- (void) (&__val == &__max); \
- __val = __val < __min ? __min: __val; \
- __val > __max ? __max: __val; })
+#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi)
/*
* ..and if you can't take the strict
--
cgit v1.2.1
From c185b07fc9f24d52a864376ed22a6d84384b0c53 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Thu, 9 Oct 2014 15:30:15 -0700
Subject: include/linux/kernel.h: deduplicate code implementing clamp* macros
Instead of open-coding clamp_t macro min_t and max_t the way clamp macro
does and instead of open-coding clamp_val simply use clamp_t.
Furthermore, normalise argument naming in the macros to be lo and hi.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Mark Rustad <mark.d.rustad@intel.com>
Cc: "Kirsher, Jeffrey T" <jeffrey.t.kirsher@intel.com>
Cc: Hagen Paul Pfeifer <hagen@jauu.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/kernel.h | 24 +++++++-----------------
1 file changed, 7 insertions(+), 17 deletions(-)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index aa2a0cb57f50..e9e420b6d931 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -734,7 +734,7 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
* @lo: lowest allowable value
* @hi: highest allowable value
*
- * This macro does strict typechecking of min/max to make sure they are of the
+ * This macro does strict typechecking of lo/hi to make sure they are of the
* same type as val. See the unnecessary pointer comparisons.
*/
#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi)
@@ -759,36 +759,26 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
* clamp_t - return a value clamped to a given range using a given type
* @type: the type of variable to use
* @val: current value
- * @min: minimum allowable value
- * @max: maximum allowable value
+ * @lo: minimum allowable value
+ * @hi: maximum allowable value
*
* This macro does no typechecking and uses temporary variables of type
* 'type' to make all the comparisons.
*/
-#define clamp_t(type, val, min, max) ({ \
- type __val = (val); \
- type __min = (min); \
- type __max = (max); \
- __val = __val < __min ? __min: __val; \
- __val > __max ? __max: __val; })
+#define clamp_t(type, val, lo, hi) min_t(type, max_t(type, val, lo), hi)
/**
* clamp_val - return a value clamped to a given range using val's type
* @val: current value
- * @min: minimum allowable value
- * @max: maximum allowable value
+ * @lo: minimum allowable value
+ * @hi: maximum allowable value
*
* This macro does no typechecking and uses temporary variables of whatever
* type the input argument 'val' is. This is useful when val is an unsigned
* type and min and max are literals that will otherwise be assigned a signed
* integer type.
*/
-#define clamp_val(val, min, max) ({ \
- typeof(val) __val = (val); \
- typeof(val) __min = (min); \
- typeof(val) __max = (max); \
- __val = __val < __min ? __min: __val; \
- __val > __max ? __max: __val; })
+#define clamp_val(val, lo, hi) clamp_t(typeof(val), val, lo, hi)
/*
--
cgit v1.2.1
From 61a04e5b306ab9d6a30f78e86f1f140d7c888304 Mon Sep 17 00:00:00 2001
From: Michele Curti <michele.curti@gmail.com>
Date: Thu, 9 Oct 2014 15:30:17 -0700
Subject: include/linux/blkdev.h: use NULL instead of zero
Quite useless but it shuts up some warnings.
Signed-off-by: Michele Curti <michele.curti@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/blkdev.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 518b46555b80..87be398166d3 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1564,7 +1564,7 @@ static inline int blk_rq_map_integrity_sg(struct request_queue *q,
}
static inline struct blk_integrity *bdev_get_integrity(struct block_device *b)
{
- return 0;
+ return NULL;
}
static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)
{
--
cgit v1.2.1
From 578b25dfce2990d8bab5631f33a4283bd5b01556 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Thu, 9 Oct 2014 15:30:28 -0700
Subject: include/linux/screen_info.h: remove unused ORIG_* macros
The ORIG_* macros definitions to access struct screen_info members and all
of their users were removed 7 years ago by commit 3ea335100014785f
("Remove magic macros for screen_info structure members"), but (only) the
definitions reappeared a few days later in commit ee8e7cfe9d330d6f ("Make
asm-x86/bootparam.h includable from userspace.").
Remove them for good. Amen.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/screen_info.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h
index 005bf3e38db5..f0f8bad54be9 100644
--- a/include/linux/screen_info.h
+++ b/include/linux/screen_info.h
@@ -5,12 +5,4 @@
extern struct screen_info screen_info;
-#define ORIG_X (screen_info.orig_x)
-#define ORIG_Y (screen_info.orig_y)
-#define ORIG_VIDEO_MODE (screen_info.orig_video_mode)
-#define ORIG_VIDEO_COLS (screen_info.orig_video_cols)
-#define ORIG_VIDEO_EGA_BX (screen_info.orig_video_ega_bx)
-#define ORIG_VIDEO_LINES (screen_info.orig_video_lines)
-#define ORIG_VIDEO_ISVGA (screen_info.orig_video_isVGA)
-#define ORIG_VIDEO_POINTS (screen_info.orig_video_points)
#endif /* _SCREEN_INFO_H */
--
cgit v1.2.1
From 7f8998c7aef3ac9c5f3f2943e083dfa6302e90d0 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Thu, 9 Oct 2014 15:30:30 -0700
Subject: nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
The different architectures used their own (and different) declarations:
extern __visible const void __nosave_begin, __nosave_end;
extern const void __nosave_begin, __nosave_end;
extern long __nosave_begin, __nosave_end;
Consolidate them using the first variant in <asm/sections.h>.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/asm-generic/sections.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index f1a24b5c3b90..b58fd667f87b 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -3,6 +3,8 @@
/* References to section boundaries */
+#include <linux/compiler.h>
+
/*
* Usage guidelines:
* _text, _data: architecture specific, don't use them in arch-independent code
@@ -37,6 +39,8 @@ extern char __start_rodata[], __end_rodata[];
/* Start and end of .ctors section - used for constructor calls. */
extern char __ctors_start[], __ctors_end[];
+extern __visible const void __nosave_begin, __nosave_end;
+
/* function descriptor handling (if any). Override
* in asm/sections.h */
#ifndef dereference_function_descriptor
--
cgit v1.2.1
From 083bf668cb70e47b84db64856606e94beac87f01 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Fri, 14 Mar 2014 14:06:25 +0800
Subject: ACPI: make acpi_create_platform_device() an external API
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
include/linux/acpi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 807cbc46d73e..2c24c2c1be45 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -432,6 +432,7 @@ static inline bool acpi_driver_match_device(struct device *dev,
int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
int acpi_device_modalias(struct device *, char *, int);
+struct platform_device *acpi_create_platform_device(struct acpi_device *);
#define ACPI_PTR(_ptr) (_ptr)
#else /* !CONFIG_ACPI */
--
cgit v1.2.1
From 2bb3a2bf9939f3361e25045f4ef7b136b864c3b8 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Tue, 19 Nov 2013 15:43:52 +0800
Subject: ACPI / fan: use acpi_device_xxx_power instead of acpi_bus equivelant
When we have the acpi_device pointer, there is no need to pass the
device's handle to the acpi_bus_xxx_power functions to get/set/update
the device's power state, instead, use the acpi_device_xxx_power
functions directly.
To make this happen for fan module, export acpi_device_update_power.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
include/acpi/acpi_bus.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index bcfd808b1098..6ca32812f3da 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -435,6 +435,7 @@ int acpi_device_set_power(struct acpi_device *device, int state);
int acpi_bus_init_power(struct acpi_device *device);
int acpi_device_fix_up_power(struct acpi_device *device);
int acpi_bus_update_power(acpi_handle handle, int *state_p);
+int acpi_device_update_power(struct acpi_device *device, int *state_p);
bool acpi_bus_power_manageable(acpi_handle handle);
#ifdef CONFIG_PM
--
cgit v1.2.1
From 7b83fd9d91a411158f72d36958103c708c3b5a86 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Tue, 25 Mar 2014 10:40:09 +0800
Subject: Thermal: move the KELVIN_TO_MILLICELSIUS macro to thermal.h
This macro can be used by other component so move it to a common header,
but in a slightly different way: define two macros, one macro with an
offset and the other doesn't.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
include/linux/thermal.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 0305cde21a74..79ce6b94884a 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -44,6 +44,8 @@
#define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \
((long)t-2732+5)/10 : ((long)t-2732-5)/10)
#define CELSIUS_TO_KELVIN(t) ((t)*10+2732)
+#define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100)
+#define DECI_KELVIN_TO_MILLICELSIUS(t) DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, 2732)
/* Adding event notification support elements */
#define THERMAL_GENL_FAMILY_NAME "thermal_event"
--
cgit v1.2.1
From 77e337c6e23e3b9d22e09ffec202a80f755a54c2 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Wed, 3 Sep 2014 15:13:02 +0800
Subject: Thermal: introduce INT3402 thermal driver
ACPI INT3402 device object could report temperature for the memory module.
To expose such information to user space, a thermal zone device is registered
for it so that the thermal sysfs interface can expose such information for
userspace to use.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
include/linux/thermal.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 79ce6b94884a..ef90838b36a0 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -46,6 +46,8 @@
#define CELSIUS_TO_KELVIN(t) ((t)*10+2732)
#define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100)
#define DECI_KELVIN_TO_MILLICELSIUS(t) DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, 2732)
+#define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off))
+#define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732)
/* Adding event notification support elements */
#define THERMAL_GENL_FAMILY_NAME "thermal_event"
--
cgit v1.2.1
From 1fadee0c364572f2b2e098b34001fbaa82ee2e00 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Fri, 10 Oct 2014 09:48:05 +0200
Subject: net/phy: micrel: Add clock support for KSZ8021/KSZ8031
The KSZ8021 and KSZ8031 support RMII reference input clocks of 25MHz
and 50MHz. Both PHYs differ in the default frequency they expect
after reset. If this differs from the actual input clock, then
register 0x1f bit 7 must be changed.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/micrel_phy.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
index 2e5b194b9b19..53d33dee70e1 100644
--- a/include/linux/micrel_phy.h
+++ b/include/linux/micrel_phy.h
@@ -37,6 +37,7 @@
/* struct phy_device dev_flags definitions */
#define MICREL_PHY_50MHZ_CLK 0x00000001
+#define MICREL_PHY_25MHZ_CLK 0x00000002
#define MICREL_KSZ9021_EXTREG_CTRL 0xB
#define MICREL_KSZ9021_EXTREG_DATA_WRITE 0xC
--
cgit v1.2.1
From a1f1a79c51fd493887bb66d932ee66a23f8b1527 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 11 Oct 2014 22:08:57 -0700
Subject: drm: drm_err: Remove unnecessary __func__ argument
Removing the unnecessary drm_err __func__ argument by using
the equivalent %pf and __builtin_return_address(0) makes the
code smaller for every use of the DRM_ERROR macro.
For instance: (allmodconfig)
$ size drivers/gpu/drm/i915/i915.o*
text data bss dec hex filename
922447 193257 296736 1412440 158d58 drivers/gpu/drm/i915/i915.o.new
928111 193257 296736 1418104 15a378 drivers/gpu/drm/i915/i915.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 53ed87698a74..d7ebd7b207e3 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -125,8 +125,8 @@ struct dma_buf_attachment;
extern __printf(2, 3)
void drm_ut_debug_printk(const char *function_name,
const char *format, ...);
-extern __printf(2, 3)
-void drm_err(const char *func, const char *format, ...);
+extern __printf(1, 2)
+void drm_err(const char *format, ...);
/***********************************************************************/
/** \name DRM template customization defaults */
@@ -155,7 +155,7 @@ void drm_err(const char *func, const char *format, ...);
* \param arg arguments
*/
#define DRM_ERROR(fmt, ...) \
- drm_err(__func__, fmt, ##__VA_ARGS__)
+ drm_err(fmt, ##__VA_ARGS__)
/**
* Rate limited error output. Like DRM_ERROR() but won't flood the log.
@@ -170,7 +170,7 @@ void drm_err(const char *func, const char *format, ...);
DEFAULT_RATELIMIT_BURST); \
\
if (__ratelimit(&_rs)) \
- drm_err(__func__, fmt, ##__VA_ARGS__); \
+ drm_err(fmt, ##__VA_ARGS__); \
})
#define DRM_INFO(fmt, ...) \
--
cgit v1.2.1
From 810bb172671aec17cf85cc748120cf73c17af372 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 12 Oct 2014 12:45:37 -0400
Subject: take dname_external() into fs/dcache.c
never used outside and it's too low-level for legitimate uses outside
of fs/dcache.c anyway
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/dcache.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 81b03150f39a..27a7f00bc89e 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -226,11 +226,6 @@ struct dentry_operations {
extern seqlock_t rename_lock;
-static inline int dname_external(const struct dentry *dentry)
-{
- return dentry->d_name.name != dentry->d_iname;
-}
-
/*
* These are the low-level FS interfaces to the dcache..
*/
--
cgit v1.2.1
From 7b600f2abb36909e70963cc7c744c15983500bee Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 12 Oct 2014 13:31:58 -0400
Subject: don't need that forward declaration of struct nameidata in dcache.h
anymore
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/dcache.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 27a7f00bc89e..b2a2a08523bf 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -11,7 +11,6 @@
#include <linux/rcupdate.h>
#include <linux/lockref.h>
-struct nameidata;
struct path;
struct vfsmount;
--
cgit v1.2.1
From dfda0df3426483cf5fc7441f23f318edbabecb03 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Wed, 6 Aug 2014 16:26:21 +1000
Subject: drm/mst: rework payload table allocation to conform better.
The old code has problems with the Dell MST monitors due to some
assumptions I made that weren't true.
I initially thought the Virtual Channel Payload IDs had to be in
the DPCD table in ascending order, however it appears that assumption
is bogus.
The old code also assumed it was possible to insert a member
into the table and it would move other members up, like it does
when you remove table entries, however reality has shown this
isn't true.
So the new code allocates VCPIs separate from entries in the payload
tracking table, and when we remove an entry from the DPCD table,
I shuffle the tracking payload entries around in the struct.
This appears to make VT switch more robust (still not perfect)
with an MST enabled Dell monitor.
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_dp_mst_helper.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 9b446ada2532..338fc1053835 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -388,6 +388,7 @@ struct drm_dp_payload {
int payload_state;
int start_slot;
int num_slots;
+ int vcpi;
};
/**
@@ -454,6 +455,7 @@ struct drm_dp_mst_topology_mgr {
struct drm_dp_vcpi **proposed_vcpis;
struct drm_dp_payload *payloads;
unsigned long payload_mask;
+ unsigned long vcpi_mask;
wait_queue_head_t tx_waitq;
struct work_struct work;
--
cgit v1.2.1
From 174e964ec224c3c591b83a6b5f0984d905d3678f Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 9 Oct 2014 12:43:27 -0700
Subject: regulator: Include err.h from consumer.h to fix build failure
sh:sh2007_defconfig fails to build with the following error:
In file included from include/linux/regulator/machine.h:18:0,
from arch/sh/boards/board-sh2007.c:10:
include/linux/regulator/consumer.h: In function 'regulator_get_optional':
include/linux/regulator/consumer.h:271:2:
error: implicit declaration of function 'ERR_PTR'
include/linux/err.h: At top level:
include/linux/err.h:23:35: error: conflicting types for 'ERR_PTR'
include/linux/regulator/consumer.h:271:9:
note: previous implicit declaration of 'ERR_PTR' was here
Since consumer.h uses ERR_PTR, it should include err.h.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/regulator/consumer.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index d347c805f923..f540b1496e2f 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -35,6 +35,8 @@
#ifndef __LINUX_REGULATOR_CONSUMER_H_
#define __LINUX_REGULATOR_CONSUMER_H_
+#include <linux/err.h>
+
struct device;
struct notifier_block;
struct regmap;
--
cgit v1.2.1
From 7210e4e38f945dfa173c4a4e59ad827c9ecad541 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 13 Oct 2014 19:50:22 +0200
Subject: netfilter: nf_tables: restrict nat/masq expressions to nat chain type
This adds the missing validation code to avoid the use of nat/masq from
non-nat chains. The validation assumes two possible configuration
scenarios:
1) Use of nat from base chain that is not of nat type. Reject this
configuration from the nft_*_init() path of the expression.
2) Use of nat from non-base chain. In this case, we have to wait until
the non-base chain is referenced by at least one base chain via
jump/goto. This is resolved from the nft_*_validate() path which is
called from nf_tables_check_loops().
The user gets an -EOPNOTSUPP in both cases.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_tables.h | 3 +++
include/net/netfilter/nft_masq.h | 3 +++
2 files changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 3d7292392fac..845c596bf594 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -530,6 +530,9 @@ enum nft_chain_type {
NFT_CHAIN_T_MAX
};
+int nft_chain_validate_dependency(const struct nft_chain *chain,
+ enum nft_chain_type type);
+
struct nft_stats {
u64 bytes;
u64 pkts;
diff --git a/include/net/netfilter/nft_masq.h b/include/net/netfilter/nft_masq.h
index c72729f954f4..e2a518b60e19 100644
--- a/include/net/netfilter/nft_masq.h
+++ b/include/net/netfilter/nft_masq.h
@@ -13,4 +13,7 @@ int nft_masq_init(const struct nft_ctx *ctx,
int nft_masq_dump(struct sk_buff *skb, const struct nft_expr *expr);
+int nft_masq_validate(const struct nft_ctx *ctx, const struct nft_expr *expr,
+ const struct nft_data **data);
+
#endif /* _NFT_MASQ_H_ */
--
cgit v1.2.1
From 71458cfc782eafe4b27656e078d379a34e472adf Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Mon, 13 Oct 2014 15:51:05 -0700
Subject: kernel: add support for gcc 5
We're missing include/linux/compiler-gcc5.h which is required now
because gcc branched off to v5 in trunk.
Just copy the relevant bits out of include/linux/compiler-gcc4.h,
no new code is added as of now.
This fixes a build error when using gcc 5.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/compiler-gcc5.h | 66 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 66 insertions(+)
create mode 100644 include/linux/compiler-gcc5.h
(limited to 'include')
diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
new file mode 100644
index 000000000000..cdd1cc202d51
--- /dev/null
+++ b/include/linux/compiler-gcc5.h
@@ -0,0 +1,66 @@
+#ifndef __LINUX_COMPILER_H
+#error "Please don't include <linux/compiler-gcc5.h> directly, include <linux/compiler.h> instead."
+#endif
+
+#define __used __attribute__((__used__))
+#define __must_check __attribute__((warn_unused_result))
+#define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
+
+/* Mark functions as cold. gcc will assume any path leading to a call
+ to them will be unlikely. This means a lot of manual unlikely()s
+ are unnecessary now for any paths leading to the usual suspects
+ like BUG(), printk(), panic() etc. [but let's keep them for now for
+ older compilers]
+
+ Early snapshots of gcc 4.3 don't support this and we can't detect this
+ in the preprocessor, but we can live with this because they're unreleased.
+ Maketime probing would be overkill here.
+
+ gcc also has a __attribute__((__hot__)) to move hot functions into
+ a special section, but I don't see any sense in this right now in
+ the kernel context */
+#define __cold __attribute__((__cold__))
+
+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
+
+#ifndef __CHECKER__
+# define __compiletime_warning(message) __attribute__((warning(message)))
+# define __compiletime_error(message) __attribute__((error(message)))
+#endif /* __CHECKER__ */
+
+/*
+ * Mark a position in code as unreachable. This can be used to
+ * suppress control flow warnings after asm blocks that transfer
+ * control elsewhere.
+ *
+ * Early snapshots of gcc 4.5 don't support this and we can't detect
+ * this in the preprocessor, but we can live with this because they're
+ * unreleased. Really, we need to have autoconf for the kernel.
+ */
+#define unreachable() __builtin_unreachable()
+
+/* Mark a function definition as prohibited from being cloned. */
+#define __noclone __attribute__((__noclone__))
+
+/*
+ * Tell the optimizer that something else uses this function or variable.
+ */
+#define __visible __attribute__((externally_visible))
+
+/*
+ * GCC 'asm goto' miscompiles certain code sequences:
+ *
+ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
+ *
+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
+ * Fixed in GCC 4.8.2 and later versions.
+ *
+ * (asm goto is automatically volatile - the naming reflects this.)
+ */
+#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
+
+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
+#define __HAVE_BUILTIN_BSWAP32__
+#define __HAVE_BUILTIN_BSWAP64__
+#define __HAVE_BUILTIN_BSWAP16__
+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
--
cgit v1.2.1
From de9e14eebf33a60712a52a0bc6e08c043c0aba53 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Mon, 13 Oct 2014 15:51:09 -0700
Subject: drivers: dma-contiguous: add initialization from device tree
Add a function to create CMA region from previously reserved memory and
add support for handling 'shared-dma-pool' reserved-memory device tree
nodes.
Based on previous code provided by Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Laura Abbott <lauraa@codeaurora.org>
Cc: Josh Cartwright <joshc@codeaurora.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/cma.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/cma.h b/include/linux/cma.h
index 371b93042520..0430ed05d3b9 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -22,6 +22,9 @@ extern int __init cma_declare_contiguous(phys_addr_t size,
phys_addr_t base, phys_addr_t limit,
phys_addr_t alignment, unsigned int order_per_bit,
bool fixed, struct cma **res_cma);
+extern int cma_init_reserved_mem(phys_addr_t size,
+ phys_addr_t base, int order_per_bit,
+ struct cma **res_cma);
extern struct page *cma_alloc(struct cma *cma, int count, unsigned int align);
extern bool cma_release(struct cma *cma, struct page *pages, int count);
#endif
--
cgit v1.2.1
From 8b21d9ca17ff8ed0dbf650f4162ee2d59bb5a881 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Mon, 13 Oct 2014 15:51:30 -0700
Subject: list: include linux/kernel.h
linux/list.h uses container_of, therefore it depends on linux/kernel.h.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/list.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/list.h b/include/linux/list.h
index cbbb96fcead9..f33f831eb3c8 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -5,6 +5,7 @@
#include <linux/stddef.h>
#include <linux/poison.h>
#include <linux/const.h>
+#include <linux/kernel.h>
/*
* Simple doubly linked list implementation.
--
cgit v1.2.1
From 6de8ab68bc30da75116209d818c75497bdaed09d Mon Sep 17 00:00:00 2001
From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Mon, 13 Oct 2014 15:51:36 -0700
Subject: lib: remove prio_heap
The prio_heap code is unused since commit 889ed9ceaa97 ("cgroup: remove
css_scan_tasks()"). It should be compiled out to shrink the binary
kernel size which can be done via introducing CONFIG_PRIO_HEAD or by
removing the code.
We can simply recover the code from git when needed, so it would be
better to remove it IMO.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Francesco Fusco <ffusco@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: George Spelvin <linux@horizon.com>
Cc: Mark Salter <msalter@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/prio_heap.h | 58 -----------------------------------------------
1 file changed, 58 deletions(-)
delete mode 100644 include/linux/prio_heap.h
(limited to 'include')
diff --git a/include/linux/prio_heap.h b/include/linux/prio_heap.h
deleted file mode 100644
index 08094350f26a..000000000000
--- a/include/linux/prio_heap.h
+++ /dev/null
@@ -1,58 +0,0 @@
-#ifndef _LINUX_PRIO_HEAP_H
-#define _LINUX_PRIO_HEAP_H
-
-/*
- * Simple insertion-only static-sized priority heap containing
- * pointers, based on CLR, chapter 7
- */
-
-#include <linux/gfp.h>
-
-/**
- * struct ptr_heap - simple static-sized priority heap
- * @ptrs - pointer to data area
- * @max - max number of elements that can be stored in @ptrs
- * @size - current number of valid elements in @ptrs (in the range 0..@size-1
- * @gt: comparison operator, which should implement "greater than"
- */
-struct ptr_heap {
- void **ptrs;
- int max;
- int size;
- int (*gt)(void *, void *);
-};
-
-/**
- * heap_init - initialize an empty heap with a given memory size
- * @heap: the heap structure to be initialized
- * @size: amount of memory to use in bytes
- * @gfp_mask: mask to pass to kmalloc()
- * @gt: comparison operator, which should implement "greater than"
- */
-extern int heap_init(struct ptr_heap *heap, size_t size, gfp_t gfp_mask,
- int (*gt)(void *, void *));
-
-/**
- * heap_free - release a heap's storage
- * @heap: the heap structure whose data should be released
- */
-void heap_free(struct ptr_heap *heap);
-
-/**
- * heap_insert - insert a value into the heap and return any overflowed value
- * @heap: the heap to be operated on
- * @p: the pointer to be inserted
- *
- * Attempts to insert the given value into the priority heap. If the
- * heap is full prior to the insertion, then the resulting heap will
- * consist of the smallest @max elements of the original heap and the
- * new element; the greatest element will be removed from the heap and
- * returned. Note that the returned element will be the new element
- * (i.e. no change to the heap) if the new element is greater than all
- * elements currently in the heap.
- */
-extern void *heap_insert(struct ptr_heap *heap, void *p);
-
-
-
-#endif /* _LINUX_PRIO_HEAP_H */
--
cgit v1.2.1
From 1c3bea0e71892ef9100c01d3799cdae8cac273ef Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 13 Oct 2014 15:53:33 -0700
Subject: signal: use BUILD_BUG() instead of _NSIG_WORDS_is_unsupported_size()
Kill _NSIG_WORDS_is_unsupported_size(), use BUILD_BUG() instead. This
simplifies the code, avoids the nested-externs warnings, and this way we
do not defer the problem to linker.
Also, fix the indentation in _SIG_SET_BINOP() and _SIG_SET_OP().
Note: this patch assumes that the code like "if (0) BUILD_BUG();" is
valid. If not (say __compiletime_error() is not defined and thus
__compiletime_error_fallback() uses a negative array) we should fix
BUILD_BUG() and/or BUILD_BUG_ON_MSG(). This code should be fine by
definition, this is the documented purpose of BUILD_BUG().
[sfr@canb.auug.org.au: fix powerpc build failures]
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/signal.h | 29 +++++++++++++----------------
1 file changed, 13 insertions(+), 16 deletions(-)
(limited to 'include')
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 750196fcc0a5..ab1e0392b5ac 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -2,6 +2,7 @@
#define _LINUX_SIGNAL_H
#include <linux/list.h>
+#include <linux/bug.h>
#include <uapi/linux/signal.h>
struct task_struct;
@@ -67,7 +68,6 @@ static inline int sigismember(sigset_t *set, int _sig)
static inline int sigisemptyset(sigset_t *set)
{
- extern void _NSIG_WORDS_is_unsupported_size(void);
switch (_NSIG_WORDS) {
case 4:
return (set->sig[3] | set->sig[2] |
@@ -77,7 +77,7 @@ static inline int sigisemptyset(sigset_t *set)
case 1:
return set->sig[0] == 0;
default:
- _NSIG_WORDS_is_unsupported_size();
+ BUILD_BUG();
return 0;
}
}
@@ -90,24 +90,23 @@ static inline int sigisemptyset(sigset_t *set)
#define _SIG_SET_BINOP(name, op) \
static inline void name(sigset_t *r, const sigset_t *a, const sigset_t *b) \
{ \
- extern void _NSIG_WORDS_is_unsupported_size(void); \
unsigned long a0, a1, a2, a3, b0, b1, b2, b3; \
\
switch (_NSIG_WORDS) { \
- case 4: \
+ case 4: \
a3 = a->sig[3]; a2 = a->sig[2]; \
b3 = b->sig[3]; b2 = b->sig[2]; \
r->sig[3] = op(a3, b3); \
r->sig[2] = op(a2, b2); \
- case 2: \
+ case 2: \
a1 = a->sig[1]; b1 = b->sig[1]; \
r->sig[1] = op(a1, b1); \
- case 1: \
+ case 1: \
a0 = a->sig[0]; b0 = b->sig[0]; \
r->sig[0] = op(a0, b0); \
break; \
- default: \
- _NSIG_WORDS_is_unsupported_size(); \
+ default: \
+ BUILD_BUG(); \
} \
}
@@ -128,16 +127,14 @@ _SIG_SET_BINOP(sigandnsets, _sig_andn)
#define _SIG_SET_OP(name, op) \
static inline void name(sigset_t *set) \
{ \
- extern void _NSIG_WORDS_is_unsupported_size(void); \
- \
switch (_NSIG_WORDS) { \
- case 4: set->sig[3] = op(set->sig[3]); \
- set->sig[2] = op(set->sig[2]); \
- case 2: set->sig[1] = op(set->sig[1]); \
- case 1: set->sig[0] = op(set->sig[0]); \
+ case 4: set->sig[3] = op(set->sig[3]); \
+ set->sig[2] = op(set->sig[2]); \
+ case 2: set->sig[1] = op(set->sig[1]); \
+ case 1: set->sig[0] = op(set->sig[0]); \
break; \
- default: \
- _NSIG_WORDS_is_unsupported_size(); \
+ default: \
+ BUILD_BUG(); \
} \
}
--
cgit v1.2.1
From 669280a152ce5144321c0e511498877383f34393 Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Mon, 13 Oct 2014 15:53:40 -0700
Subject: kexec: take the segment adding out of locate_mem_hole functions
In locate_mem_hole functions, a memory hole is located and added as
kexec_segment. But from the name of locate_mem_hole, it should only take
responsibility of searching a available memory hole to contain data of a
specified size.
So in this patch add a new field 'mem' into kexec_buf, then take that
kexec segment adding code out of locate_mem_hole_top_down and
locate_mem_hole_bottom_up. This make clear of the functionality of
locate_mem_hole just like it declars to do. And by this
locate_mem_hole_callback chould be used later if anyone want to locate a
memory hole for other use.
Meanwhile Vivek suggested opening code function __kexec_add_segment(),
that way we have to retreive ksegment pointer once and it is easy to read.
So just do it in this patch and remove __kexec_add_segment() since no one
use it anymore.
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/kexec.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 4b2a0e11cc5b..9d957b7ae095 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -178,6 +178,7 @@ struct kexec_buf {
struct kimage *image;
char *buffer;
unsigned long bufsz;
+ unsigned long mem;
unsigned long memsz;
unsigned long buf_align;
unsigned long buf_min;
--
cgit v1.2.1
From a841b65921a959c759da6b5c8d5dc21966b4cf86 Mon Sep 17 00:00:00 2001
From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Mon, 13 Oct 2014 15:53:48 -0700
Subject: rbtree: add comment to rb_insert_augmented()
The comment is copied from Documentation/rbtree.txt, but this comment is
so important that it should also be in the code.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/rbtree_augmented.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
index fea49b5da12a..378c5ee75f78 100644
--- a/include/linux/rbtree_augmented.h
+++ b/include/linux/rbtree_augmented.h
@@ -43,6 +43,16 @@ struct rb_augment_callbacks {
extern void __rb_insert_augmented(struct rb_node *node, struct rb_root *root,
void (*augment_rotate)(struct rb_node *old, struct rb_node *new));
+/*
+ * Fixup the rbtree and update the augmented information when rebalancing.
+ *
+ * On insertion, the user must update the augmented information on the path
+ * leading to the inserted node, then call rb_link_node() as usual and
+ * rb_augment_inserted() instead of the usual rb_insert_color() call.
+ * If rb_augment_inserted() rebalances the rbtree, it will callback into
+ * a user provided function to update the augmented information on the
+ * affected subtrees.
+ */
static inline void
rb_insert_augmented(struct rb_node *node, struct rb_root *root,
const struct rb_augment_callbacks *augment)
--
cgit v1.2.1
From 67cf13ceed89e2c1a967719e98624a20c48dfb5a Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Mon, 13 Oct 2014 15:54:03 -0700
Subject: x86: optimize resource lookups for ioremap
We have a large university system in the UK that is experiencing very long
delays modprobing the driver for a specific I/O device. The delay is from
8-10 minutes per device and there are 31 devices in the system. This 4 to
5 hour delay in starting up those I/O devices is very much a burden on the
customer.
There are two causes for requiring a restart/reload of the drivers. First
is periodic preventive maintenance (PM) and the second is if any of the
devices experience a fatal error. Both of these trigger this excessively
long delay in bringing the system back up to full capability.
The problem was tracked down to a very slow IOREMAP operation and the
excessively long ioresource lookup to insure that the user is not
attempting to ioremap RAM. These patches provide a speed up to that
function.
The modprobe time appears to be affected quite a bit by previous activity
on the ioresource list, which I suspect is due to cache preloading. While
the overall improvement is impacted by other overhead of starting the
devices, this drastically improves the modprobe time.
Also our system is considerably smaller so the percentages gained will not
be the same. Best case improvement with the modprobe on our 20 device
smallish system was from 'real 5m51.913s' to 'real 0m18.275s'.
This patch (of 2):
Since the ioremap operation is verifying that the specified address range
is NOT RAM, it will search the entire ioresource list if the condition is
true. To make matters worse, it does this one 4k page at a time. For a
128M BAR region this is 32 passes to determine the entire region does not
contain any RAM addresses.
This patch provides another resource lookup function, region_is_ram, that
searches for the entire region specified, verifying that it is completely
contained within the resource region. If it is found, then it is checked
to be RAM or not, within a single pass.
The return result reflects if it was found or not (-1), and whether it is
RAM (1) or not (0). This allows the caller to fallback to the previous
page by page search if it was not found.
[akpm@linux-foundation.org: fix spellos and typos in comment]
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Alex Thorlton <athorlton@sgi.com>
Reviewed-by: Cliff Wickman <cpw@sgi.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index fa0d74e06428..4cd45cb95e6d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -347,6 +347,7 @@ static inline int put_page_unless_one(struct page *page)
}
extern int page_is_ram(unsigned long pfn);
+extern int region_is_ram(resource_size_t phys_addr, unsigned long size);
/* Support for virtually mapped pages */
struct page *vmalloc_to_page(const void *addr);
--
cgit v1.2.1
From b0bfb63118612e3614cf77b115c00f895a42c96a Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Mon, 13 Oct 2014 15:54:27 -0700
Subject: lib: string: Make all calls to strnicmp into calls to strncasecmp
The previous patch made strnicmp into a wrapper for strncasecmp.
This patch makes all in-tree users of strnicmp call strncasecmp
directly, while still making sure that the strnicmp symbol can be used
by out-of-tree modules. It should be considered a temporary hack until
all in-tree callers have been converted.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/string.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/string.h b/include/linux/string.h
index d36977e029af..e6edfe51575a 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -41,7 +41,7 @@ extern int strcmp(const char *,const char *);
extern int strncmp(const char *,const char *,__kernel_size_t);
#endif
#ifndef __HAVE_ARCH_STRNICMP
-extern int strnicmp(const char *, const char *, __kernel_size_t);
+#define strnicmp strncasecmp
#endif
#ifndef __HAVE_ARCH_STRCASECMP
extern int strcasecmp(const char *s1, const char *s2);
--
cgit v1.2.1
From 3db2e9cdc085144e243495137273e2318c53a82f Mon Sep 17 00:00:00 2001
From: Daniel Walter <dwalter@google.com>
Date: Mon, 13 Oct 2014 15:55:09 -0700
Subject: include/linux: remove strict_strto* definitions
Remove obsolete and unused strict_strto* functions
Signed-off-by: Daniel Walter <dwalter@google.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/kernel.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 35c8ffb0136f..40728cf1c452 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -376,10 +376,6 @@ extern unsigned long simple_strtoul(const char *,char **,unsigned int);
extern long simple_strtol(const char *,char **,unsigned int);
extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
extern long long simple_strtoll(const char *,char **,unsigned int);
-#define strict_strtoul kstrtoul
-#define strict_strtol kstrtol
-#define strict_strtoull kstrtoull
-#define strict_strtoll kstrtoll
extern int num_to_str(char *buf, int size, unsigned long long num);
--
cgit v1.2.1
From d295634e965ecacdb44c6760b3ca4eae08812715 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 13 Oct 2014 15:55:11 -0700
Subject: lib / string_helpers: move documentation to c-file
The introduced function string_escape_mem() is a kind of opposite to
string_unescape. We have several users of such functionality each of
them created custom implementation. The series contains clean up of
test suite, adding new call, and switching few users to use it via %*pE
specifier.
Test suite covers all of existing and most of potential use cases.
This patch (of 11):
The documentation of API belongs to c-file. This patch moves it
accordingly.
There is no functional change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/string_helpers.h | 34 ----------------------------------
1 file changed, 34 deletions(-)
(limited to 'include')
diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h
index 3eeee9672a4a..5a30f2a86239 100644
--- a/include/linux/string_helpers.h
+++ b/include/linux/string_helpers.h
@@ -20,40 +20,6 @@ int string_get_size(u64 size, enum string_size_units units,
#define UNESCAPE_ANY \
(UNESCAPE_SPACE | UNESCAPE_OCTAL | UNESCAPE_HEX | UNESCAPE_SPECIAL)
-/**
- * string_unescape - unquote characters in the given string
- * @src: source buffer (escaped)
- * @dst: destination buffer (unescaped)
- * @size: size of the destination buffer (0 to unlimit)
- * @flags: combination of the flags (bitwise OR):
- * %UNESCAPE_SPACE:
- * '\f' - form feed
- * '\n' - new line
- * '\r' - carriage return
- * '\t' - horizontal tab
- * '\v' - vertical tab
- * %UNESCAPE_OCTAL:
- * '\NNN' - byte with octal value NNN (1 to 3 digits)
- * %UNESCAPE_HEX:
- * '\xHH' - byte with hexadecimal value HH (1 to 2 digits)
- * %UNESCAPE_SPECIAL:
- * '\"' - double quote
- * '\\' - backslash
- * '\a' - alert (BEL)
- * '\e' - escape
- * %UNESCAPE_ANY:
- * all previous together
- *
- * Returns amount of characters processed to the destination buffer excluding
- * trailing '\0'.
- *
- * Because the size of the output will be the same as or less than the size of
- * the input, the transformation may be performed in place.
- *
- * Caller must provide valid source and destination pointers. Be aware that
- * destination buffer will always be NULL-terminated. Source string must be
- * NULL-terminated as well.
- */
int string_unescape(char *src, char *dst, size_t size, unsigned int flags);
static inline int string_unescape_inplace(char *buf, unsigned int flags)
--
cgit v1.2.1
From c8250381c8272a9828fdd353171727b154fbd296 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 13 Oct 2014 15:55:16 -0700
Subject: lib / string_helpers: introduce string_escape_mem()
This is almost the opposite function to string_unescape(). Nevertheless
it handles \0 and could be used for any byte buffer.
The documentation is supplied together with the function prototype.
The test cases covers most of the scenarios and would be expanded later
on.
[akpm@linux-foundation.org: avoid 1k stack consumption]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/string_helpers.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
(limited to 'include')
diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h
index 5a30f2a86239..6eb567ac56bc 100644
--- a/include/linux/string_helpers.h
+++ b/include/linux/string_helpers.h
@@ -37,4 +37,35 @@ static inline int string_unescape_any_inplace(char *buf)
return string_unescape_any(buf, buf, 0);
}
+#define ESCAPE_SPACE 0x01
+#define ESCAPE_SPECIAL 0x02
+#define ESCAPE_NULL 0x04
+#define ESCAPE_OCTAL 0x08
+#define ESCAPE_ANY \
+ (ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_SPECIAL | ESCAPE_NULL)
+#define ESCAPE_NP 0x10
+#define ESCAPE_ANY_NP (ESCAPE_ANY | ESCAPE_NP)
+#define ESCAPE_HEX 0x20
+
+int string_escape_mem(const char *src, size_t isz, char **dst, size_t osz,
+ unsigned int flags, const char *esc);
+
+static inline int string_escape_mem_any_np(const char *src, size_t isz,
+ char **dst, size_t osz, const char *esc)
+{
+ return string_escape_mem(src, isz, dst, osz, ESCAPE_ANY_NP, esc);
+}
+
+static inline int string_escape_str(const char *src, char **dst, size_t sz,
+ unsigned int flags, const char *esc)
+{
+ return string_escape_mem(src, strlen(src), dst, sz, flags, esc);
+}
+
+static inline int string_escape_str_any_np(const char *src, char **dst,
+ size_t sz, const char *esc)
+{
+ return string_escape_str(src, dst, sz, ESCAPE_ANY_NP, esc);
+}
+
#endif
--
cgit v1.2.1
From 5df1415aee48e1d20328238d3077e39793e83232 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 13 Oct 2014 15:55:27 -0700
Subject: lib80211: remove unused print_ssid()
In kernel we have %*pE specifier to print an escaped buffer. All users
now switched to that approach.
This fixes a bug as well. The current implementation wrongly prints
octal numbers: only two first digits are used in case when 3 are
required and the rest of the string ends up cut off.
Additionally by default the \f, \v, \a, and \e are escaped to their
alphabetic representation. It's safe to do since it is currently used
for messaging only.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/net/lib80211.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/net/lib80211.h b/include/net/lib80211.h
index be95b9262801..aab0f427edb5 100644
--- a/include/net/lib80211.h
+++ b/include/net/lib80211.h
@@ -32,11 +32,6 @@
#include <linux/timer.h>
#include <linux/seq_file.h>
-/* print_ssid() is intended to be used in debug (and possibly error)
- * messages. It should never be used for passing ssid to user space. */
-const char *print_ssid(char *buf, const char *ssid, u8 ssid_len);
-#define DECLARE_SSID_BUF(var) char var[IEEE80211_MAX_SSID_LEN * 4 + 1] __maybe_unused
-
#define NUM_WEP_KEYS 4
enum {
--
cgit v1.2.1
From 6e7458a6f074c71e74cda31c483114e65ea0f570 Mon Sep 17 00:00:00 2001
From: Ulrich Obergfell <uobergfe@redhat.com>
Date: Mon, 13 Oct 2014 15:55:35 -0700
Subject: kernel/watchdog.c: control hard lockup detection default
In some cases we don't want hard lockup detection enabled by default.
An example is when running as a guest. Introduce
watchdog_enable_hardlockup_detector(bool)
allowing those cases to disable hard lockup detection. This must be
executed early by the boot processor from e.g. smp_prepare_boot_cpu, in
order to allow kernel command line arguments to override it, as well as
to avoid hard lockup detection being enabled before we've had a chance
to indicate that it's unwanted. In summary,
initial boot: default=enabled
smp_prepare_boot_cpu
watchdog_enable_hardlockup_detector(false): default=disabled
cmdline has 'nmi_watchdog=1': default=enabled
The running kernel still has the ability to enable/disable at any time
with /proc/sys/kernel/nmi_watchdog us usual. However even when the
default has been overridden /proc/sys/kernel/nmi_watchdog will initially
show '1'. To truly turn it on one must disable/enable it, i.e.
echo 0 > /proc/sys/kernel/nmi_watchdog
echo 1 > /proc/sys/kernel/nmi_watchdog
This patch will be immediately useful for KVM with the next patch of this
series. Other hypervisor guest types may find it useful as well.
[akpm@linux-foundation.org: fix build]
[dzickus@redhat.com: fix compile issues on sparc]
Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/nmi.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 1d2a6ab6b8bb..9b2022ab4d85 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -24,6 +24,19 @@ static inline void touch_nmi_watchdog(void)
}
#endif
+#if defined(CONFIG_HARDLOCKUP_DETECTOR)
+extern void watchdog_enable_hardlockup_detector(bool val);
+extern bool watchdog_hardlockup_detector_is_enabled(void);
+#else
+static inline void watchdog_enable_hardlockup_detector(bool val)
+{
+}
+static inline bool watchdog_hardlockup_detector_is_enabled(void)
+{
+ return true;
+}
+#endif
+
/*
* Create trigger_all_cpu_backtrace() out of the arch-provided
* base function. Return whether such support was available,
--
cgit v1.2.1
From 63a12d9d01831208a47f5c0fbbf93f503d1fb162 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 13 Oct 2014 15:55:44 -0700
Subject: kernel/param: consolidate __{start,stop}___param[] in
<linux/moduleparam.h>
Consolidate the various external const and non-const declarations of
__start___param[] and __stop___param in <linux/moduleparam.h>. This
requires making a few struct kernel_param pointers in kernel/params.c
const.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/moduleparam.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index b43f4752304e..1c9effa25e26 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -78,6 +78,8 @@ struct kernel_param {
};
};
+extern const struct kernel_param __start___param[], __stop___param[];
+
/* Special one for strings we want to copy into */
struct kparam_string {
unsigned int maxlen;
--
cgit v1.2.1
From 64e455079e1bd7787cc47be30b7f601ce682a5f6 Mon Sep 17 00:00:00 2001
From: Peter Feiner <pfeiner@google.com>
Date: Mon, 13 Oct 2014 15:55:46 -0700
Subject: mm: softdirty: enable write notifications on VMAs after VM_SOFTDIRTY
cleared
For VMAs that don't want write notifications, PTEs created for read faults
have their write bit set. If the read fault happens after VM_SOFTDIRTY is
cleared, then the PTE's softdirty bit will remain clear after subsequent
writes.
Here's a simple code snippet to demonstrate the bug:
char* m = mmap(NULL, getpagesize(), PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_SHARED, -1, 0);
system("echo 4 > /proc/$PPID/clear_refs"); /* clear VM_SOFTDIRTY */
assert(*m == '\0'); /* new PTE allows write access */
assert(!soft_dirty(x));
*m = 'x'; /* should dirty the page */
assert(soft_dirty(x)); /* fails */
With this patch, write notifications are enabled when VM_SOFTDIRTY is
cleared. Furthermore, to avoid unnecessary faults, write notifications
are disabled when VM_SOFTDIRTY is set.
As a side effect of enabling and disabling write notifications with
care, this patch fixes a bug in mprotect where vm_page_prot bits set by
drivers were zapped on mprotect. An analogous bug was fixed in mmap by
commit c9d0bf241451 ("mm: uncached vma support with writenotify").
Signed-off-by: Peter Feiner <pfeiner@google.com>
Reported-by: Peter Feiner <pfeiner@google.com>
Suggested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Jamie Liu <jamieliu@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/asm-generic/pgtable.h | 14 ++++++++++++++
include/linux/mm.h | 5 +++++
2 files changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 081ff8826bf6..752e30d63904 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -253,6 +253,20 @@ static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
#define pgprot_device pgprot_noncached
#endif
+#ifndef pgprot_modify
+#define pgprot_modify pgprot_modify
+static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
+{
+ if (pgprot_val(oldprot) == pgprot_val(pgprot_noncached(oldprot)))
+ newprot = pgprot_noncached(newprot);
+ if (pgprot_val(oldprot) == pgprot_val(pgprot_writecombine(oldprot)))
+ newprot = pgprot_writecombine(newprot);
+ if (pgprot_val(oldprot) == pgprot_val(pgprot_device(oldprot)))
+ newprot = pgprot_device(newprot);
+ return newprot;
+}
+#endif
+
/*
* When walking page tables, get the address of the next boundary,
* or the end address of the range if that comes earlier. Although no
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 4cd45cb95e6d..02d11ee7f19d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1974,11 +1974,16 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
#ifdef CONFIG_MMU
pgprot_t vm_get_page_prot(unsigned long vm_flags);
+void vma_set_page_prot(struct vm_area_struct *vma);
#else
static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
{
return __pgprot(0);
}
+static inline void vma_set_page_prot(struct vm_area_struct *vma)
+{
+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+}
#endif
#ifdef CONFIG_NUMA_BALANCING
--
cgit v1.2.1
From 2cbbca5e7c38d0c776497f586688464f8cfb1583 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Tue, 30 Sep 2014 16:02:19 +1000
Subject: md: discard PRINT_RAID_DEBUG ioctl
All the interesting information printed by this ioctl
is provided in /proc/mdstat and/or sysfs.
So it isn't needed and isn't used and would be best if it didn't
exist.
Signed-off-by: NeilBrown <neilb@suse.de>
---
include/uapi/linux/raid/md_u.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/raid/md_u.h b/include/uapi/linux/raid/md_u.h
index 4133e744e4e6..74e7c60c4716 100644
--- a/include/uapi/linux/raid/md_u.h
+++ b/include/uapi/linux/raid/md_u.h
@@ -39,7 +39,6 @@
#define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t)
#define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t)
#define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t)
-#define PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13)
#define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)
--
cgit v1.2.1
From a0a77af14117e388d43b2385d5ecc800e2d6eee9 Mon Sep 17 00:00:00 2001
From: Behan Webster <behanw@converseincode.com>
Date: Mon, 8 Sep 2014 00:05:09 -0500
Subject: crypto: LLVMLinux: Add macro to remove use of VLAIS in crypto code
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Add a macro which replaces the use of a Variable Length Array In Struct (VLAIS)
with a C99 compliant equivalent. This macro instead allocates the appropriate
amount of memory using an char array.
The new code can be compiled with both gcc and clang.
struct shash_desc contains a flexible array member member ctx declared with
CRYPTO_MINALIGN_ATTR, so sizeof(struct shash_desc) aligns the beginning
of the array declared after struct shash_desc with long long.
No trailing padding is required because it is not a struct type that can
be used in an array.
The CRYPTO_MINALIGN_ATTR is required so that desc is aligned with long long
as would be the case for a struct containing a member with
CRYPTO_MINALIGN_ATTR.
If you want to get to the ctx at the end of the shash_desc as before you can do
so using shash_desc_ctx(shash)
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Michał Mirosław <mirqus@gmail.com>
---
include/crypto/hash.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index a39195539601..74b13ec1ebd4 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -58,6 +58,11 @@ struct shash_desc {
void *__ctx[] CRYPTO_MINALIGN_ATTR;
};
+#define SHASH_DESC_ON_STACK(shash, ctx) \
+ char __##shash##_desc[sizeof(struct shash_desc) + \
+ crypto_shash_descsize(ctx)] CRYPTO_MINALIGN_ATTR; \
+ struct shash_desc *shash = (struct shash_desc *)__##shash##_desc
+
struct shash_alg {
int (*init)(struct shash_desc *desc);
int (*update)(struct shash_desc *desc, const u8 *data,
--
cgit v1.2.1
From e19a8a0ad2d255316830ead05b59c5a704434cbb Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Tue, 14 Oct 2014 09:00:44 -0600
Subject: block: Remove REQ_KERNEL
REQ_KERNEL is no longer used. Remove it and drop the redundant uio
argument to nfs_file_direct_{read,write}.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk_types.h | 2 --
include/linux/fs.h | 2 --
include/linux/nfs_fs.h | 4 ++--
3 files changed, 2 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 38bc008e4503..445d59231bc4 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -187,7 +187,6 @@ enum rq_flag_bits {
__REQ_FLUSH_SEQ, /* request for flush sequence */
__REQ_IO_STAT, /* account I/O stat */
__REQ_MIXED_MERGE, /* merge of different types, fail separately */
- __REQ_KERNEL, /* direct IO to kernel pages */
__REQ_PM, /* runtime pm request */
__REQ_HASHED, /* on IO scheduler merge hash */
__REQ_MQ_INFLIGHT, /* track inflight for MQ */
@@ -241,7 +240,6 @@ enum rq_flag_bits {
#define REQ_IO_STAT (1ULL << __REQ_IO_STAT)
#define REQ_MIXED_MERGE (1ULL << __REQ_MIXED_MERGE)
#define REQ_SECURE (1ULL << __REQ_SECURE)
-#define REQ_KERNEL (1ULL << __REQ_KERNEL)
#define REQ_PM (1ULL << __REQ_PM)
#define REQ_HASHED (1ULL << __REQ_HASHED)
#define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 94187721ad41..9b5bc1cacb8e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -192,8 +192,6 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
#define READ 0
#define WRITE RW_MASK
#define READA RWA_MASK
-#define KERNEL_READ (READ|REQ_KERNEL)
-#define KERNEL_WRITE (WRITE|REQ_KERNEL)
#define READ_SYNC (READ | REQ_SYNC)
#define WRITE_SYNC (WRITE | REQ_SYNC | REQ_NOIDLE)
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 5180a7ededec..e6e1c4e0d7f3 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -464,10 +464,10 @@ extern int nfs3_removexattr (struct dentry *, const char *name);
extern ssize_t nfs_direct_IO(int, struct kiocb *, struct iov_iter *, loff_t);
extern ssize_t nfs_file_direct_read(struct kiocb *iocb,
struct iov_iter *iter,
- loff_t pos, bool uio);
+ loff_t pos);
extern ssize_t nfs_file_direct_write(struct kiocb *iocb,
struct iov_iter *iter,
- loff_t pos, bool uio);
+ loff_t pos);
/*
* linux/fs/nfs/dir.c
--
cgit v1.2.1
From 9de7922bc709eee2f609cd01d98aaedc4cf5ea74 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 9 Oct 2014 22:55:31 +0200
Subject: net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks
Commit 6f4c618ddb0 ("SCTP : Add paramters validity check for
ASCONF chunk") added basic verification of ASCONF chunks, however,
it is still possible to remotely crash a server by sending a
special crafted ASCONF chunk, even up to pre 2.6.12 kernels:
skb_over_panic: text:ffffffffa01ea1c3 len:31056 put:30768
head:ffff88011bd81800 data:ffff88011bd81800 tail:0x7950
end:0x440 dev:<NULL>
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:129!
[...]
Call Trace:
<IRQ>
[<ffffffff8144fb1c>] skb_put+0x5c/0x70
[<ffffffffa01ea1c3>] sctp_addto_chunk+0x63/0xd0 [sctp]
[<ffffffffa01eadaf>] sctp_process_asconf+0x1af/0x540 [sctp]
[<ffffffff8152d025>] ? _read_unlock_bh+0x15/0x20
[<ffffffffa01e0038>] sctp_sf_do_asconf+0x168/0x240 [sctp]
[<ffffffffa01e3751>] sctp_do_sm+0x71/0x1210 [sctp]
[<ffffffff8147645d>] ? fib_rules_lookup+0xad/0xf0
[<ffffffffa01e6b22>] ? sctp_cmp_addr_exact+0x32/0x40 [sctp]
[<ffffffffa01e8393>] sctp_assoc_bh_rcv+0xd3/0x180 [sctp]
[<ffffffffa01ee986>] sctp_inq_push+0x56/0x80 [sctp]
[<ffffffffa01fcc42>] sctp_rcv+0x982/0xa10 [sctp]
[<ffffffffa01d5123>] ? ipt_local_in_hook+0x23/0x28 [iptable_filter]
[<ffffffff8148bdc9>] ? nf_iterate+0x69/0xb0
[<ffffffff81496d10>] ? ip_local_deliver_finish+0x0/0x2d0
[<ffffffff8148bf86>] ? nf_hook_slow+0x76/0x120
[<ffffffff81496d10>] ? ip_local_deliver_finish+0x0/0x2d0
[<ffffffff81496ded>] ip_local_deliver_finish+0xdd/0x2d0
[<ffffffff81497078>] ip_local_deliver+0x98/0xa0
[<ffffffff8149653d>] ip_rcv_finish+0x12d/0x440
[<ffffffff81496ac5>] ip_rcv+0x275/0x350
[<ffffffff8145c88b>] __netif_receive_skb+0x4ab/0x750
[<ffffffff81460588>] netif_receive_skb+0x58/0x60
This can be triggered e.g., through a simple scripted nmap
connection scan injecting the chunk after the handshake, for
example, ...
-------------- INIT[ASCONF; ASCONF_ACK] ------------->
<----------- INIT-ACK[ASCONF; ASCONF_ACK] ------------
-------------------- COOKIE-ECHO -------------------->
<-------------------- COOKIE-ACK ---------------------
------------------ ASCONF; UNKNOWN ------------------>
... where ASCONF chunk of length 280 contains 2 parameters ...
1) Add IP address parameter (param length: 16)
2) Add/del IP address parameter (param length: 255)
... followed by an UNKNOWN chunk of e.g. 4 bytes. Here, the
Address Parameter in the ASCONF chunk is even missing, too.
This is just an example and similarly-crafted ASCONF chunks
could be used just as well.
The ASCONF chunk passes through sctp_verify_asconf() as all
parameters passed sanity checks, and after walking, we ended
up successfully at the chunk end boundary, and thus may invoke
sctp_process_asconf(). Parameter walking is done with
WORD_ROUND() to take padding into account.
In sctp_process_asconf()'s TLV processing, we may fail in
sctp_process_asconf_param() e.g., due to removal of the IP
address that is also the source address of the packet containing
the ASCONF chunk, and thus we need to add all TLVs after the
failure to our ASCONF response to remote via helper function
sctp_add_asconf_response(), which basically invokes a
sctp_addto_chunk() adding the error parameters to the given
skb.
When walking to the next parameter this time, we proceed
with ...
length = ntohs(asconf_param->param_hdr.length);
asconf_param = (void *)asconf_param + length;
... instead of the WORD_ROUND()'ed length, thus resulting here
in an off-by-one that leads to reading the follow-up garbage
parameter length of 12336, and thus throwing an skb_over_panic
for the reply when trying to sctp_addto_chunk() next time,
which implicitly calls the skb_put() with that length.
Fix it by using sctp_walk_params() [ which is also used in
INIT parameter processing ] macro in the verification *and*
in ASCONF processing: it will make sure we don't spill over,
that we walk parameters WORD_ROUND()'ed. Moreover, we're being
more defensive and guard against unknown parameter types and
missized addresses.
Joint work with Vlad Yasevich.
Fixes: b896b82be4ae ("[SCTP] ADDIP: Support for processing incoming ASCONF_ACK chunks.")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sctp/sm.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 7f4eeb340a54..72a31db47ded 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -248,9 +248,9 @@ struct sctp_chunk *sctp_make_asconf_update_ip(struct sctp_association *,
int, __be16);
struct sctp_chunk *sctp_make_asconf_set_prim(struct sctp_association *asoc,
union sctp_addr *addr);
-int sctp_verify_asconf(const struct sctp_association *asoc,
- struct sctp_paramhdr *param_hdr, void *chunk_end,
- struct sctp_paramhdr **errp);
+bool sctp_verify_asconf(const struct sctp_association *asoc,
+ struct sctp_chunk *chunk, bool addr_param_needed,
+ struct sctp_paramhdr **errp);
struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
struct sctp_chunk *asconf);
int sctp_process_asconf_ack(struct sctp_association *asoc,
--
cgit v1.2.1
From b69040d8e39f20d5215a03502a8e8b4c6ab78395 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 9 Oct 2014 22:55:32 +0200
Subject: net: sctp: fix panic on duplicate ASCONF chunks
When receiving a e.g. semi-good formed connection scan in the
form of ...
-------------- INIT[ASCONF; ASCONF_ACK] ------------->
<----------- INIT-ACK[ASCONF; ASCONF_ACK] ------------
-------------------- COOKIE-ECHO -------------------->
<-------------------- COOKIE-ACK ---------------------
---------------- ASCONF_a; ASCONF_b ----------------->
... where ASCONF_a equals ASCONF_b chunk (at least both serials
need to be equal), we panic an SCTP server!
The problem is that good-formed ASCONF chunks that we reply with
ASCONF_ACK chunks are cached per serial. Thus, when we receive a
same ASCONF chunk twice (e.g. through a lost ASCONF_ACK), we do
not need to process them again on the server side (that was the
idea, also proposed in the RFC). Instead, we know it was cached
and we just resend the cached chunk instead. So far, so good.
Where things get nasty is in SCTP's side effect interpreter, that
is, sctp_cmd_interpreter():
While incoming ASCONF_a (chunk = event_arg) is being marked
!end_of_packet and !singleton, and we have an association context,
we do not flush the outqueue the first time after processing the
ASCONF_ACK singleton chunk via SCTP_CMD_REPLY. Instead, we keep it
queued up, although we set local_cork to 1. Commit 2e3216cd54b1
changed the precedence, so that as long as we get bundled, incoming
chunks we try possible bundling on outgoing queue as well. Before
this commit, we would just flush the output queue.
Now, while ASCONF_a's ASCONF_ACK sits in the corked outq, we
continue to process the same ASCONF_b chunk from the packet. As
we have cached the previous ASCONF_ACK, we find it, grab it and
do another SCTP_CMD_REPLY command on it. So, effectively, we rip
the chunk->list pointers and requeue the same ASCONF_ACK chunk
another time. Since we process ASCONF_b, it's correctly marked
with end_of_packet and we enforce an uncork, and thus flush, thus
crashing the kernel.
Fix it by testing if the ASCONF_ACK is currently pending and if
that is the case, do not requeue it. When flushing the output
queue we may relink the chunk for preparing an outgoing packet,
but eventually unlink it when it's copied into the skb right
before transmission.
Joint work with Vlad Yasevich.
Fixes: 2e3216cd54b1 ("sctp: Follow security requirement of responding with 1 packet")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sctp/sctp.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 9fbd856e6713..856f01cb51dd 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -426,6 +426,11 @@ static inline void sctp_assoc_pending_pmtu(struct sock *sk, struct sctp_associat
asoc->pmtu_pending = 0;
}
+static inline bool sctp_chunk_pending(const struct sctp_chunk *chunk)
+{
+ return !list_empty(&chunk->list);
+}
+
/* Walk through a list of TLV parameters. Don't trust the
* individual parameter lengths and instead depend on
* the chunk length to indicate when to stop. Make sure
--
cgit v1.2.1
From 31eff81e94472ddb7549509bf4b6e93e1f6f7dc9 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Fri, 10 Oct 2014 23:10:47 +0200
Subject: skbuff: fix ftrace handling in skb_unshare
If the skb is not dropped afterwards we should run consume_skb instead
kfree_skb. Inside of function skb_unshare we do always a kfree_skb,
doesn't depend if skb_copy failed or was successful.
This patch switch this behaviour like skb_share_check, if allocation of
sk_buff failed we use kfree_skb otherwise consume_skb.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 3ab0749d6875..a59d9343c25b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1203,7 +1203,12 @@ static inline struct sk_buff *skb_unshare(struct sk_buff *skb,
might_sleep_if(pri & __GFP_WAIT);
if (skb_cloned(skb)) {
struct sk_buff *nskb = skb_copy(skb, pri);
- kfree_skb(skb); /* Free our shared copy */
+
+ /* Free our shared copy */
+ if (likely(nskb))
+ consume_skb(skb);
+ else
+ kfree_skb(skb);
skb = nskb;
}
return skb;
--
cgit v1.2.1
From 02ea80741a25435123e8a5ca40cac6a0bcf0c9f1 Mon Sep 17 00:00:00 2001
From: Li RongQing <roy.qing.li@gmail.com>
Date: Sat, 11 Oct 2014 13:03:34 +0800
Subject: ipv6: remove aca_lock spinlock from struct ifacaddr6
no user uses this lock.
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/if_inet6.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 55a8d4056cc9..98e5f9578f86 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -146,7 +146,6 @@ struct ifacaddr6 {
struct ifacaddr6 *aca_next;
int aca_users;
atomic_t aca_refcnt;
- spinlock_t aca_lock;
unsigned long aca_cstamp;
unsigned long aca_tstamp;
};
--
cgit v1.2.1
From 9ea8aa8d5087529210553114b7bc4bf4374ace8f Mon Sep 17 00:00:00 2001
From: Tilman Schmidt <tilman@imap.cc>
Date: Sat, 11 Oct 2014 13:46:30 +0200
Subject: isdn/capi: correct capi20_manufacturer argument type mismatch
Function capi20_manufacturer() is declared with unsigned int cmd
argument but called with unsigned long.
Fix by correcting the function prototype since the actual argument
is part of the user visible API.
Spotted with Coverity.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/kernelcapi.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/kernelcapi.h b/include/linux/kernelcapi.h
index 9be37da93680..e985ba679c4a 100644
--- a/include/linux/kernelcapi.h
+++ b/include/linux/kernelcapi.h
@@ -41,7 +41,7 @@ u16 capi20_get_manufacturer(u32 contr, u8 buf[CAPI_MANUFACTURER_LEN]);
u16 capi20_get_version(u32 contr, struct capi_version *verp);
u16 capi20_get_serial(u32 contr, u8 serial[CAPI_SERIAL_LEN]);
u16 capi20_get_profile(u32 contr, struct capi_profile *profp);
-int capi20_manufacturer(unsigned int cmd, void __user *data);
+int capi20_manufacturer(unsigned long cmd, void __user *data);
#define CAPICTR_UP 0
#define CAPICTR_DOWN 1
--
cgit v1.2.1
From e4339d28f640a7c0d92903bcf389a2dfa281270d Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Tue, 16 Sep 2014 17:50:45 +0800
Subject: libceph: reference counting pagelist
this allow pagelist to present data that may be sent multiple times.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
---
include/linux/ceph/pagelist.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ceph/pagelist.h b/include/linux/ceph/pagelist.h
index 9660d6b0a35d..5f871d84ddce 100644
--- a/include/linux/ceph/pagelist.h
+++ b/include/linux/ceph/pagelist.h
@@ -2,6 +2,7 @@
#define __FS_CEPH_PAGELIST_H
#include <linux/list.h>
+#include <linux/atomic.h>
struct ceph_pagelist {
struct list_head head;
@@ -10,6 +11,7 @@ struct ceph_pagelist {
size_t room;
struct list_head free_list;
size_t num_pages_free;
+ atomic_t refcnt;
};
struct ceph_pagelist_cursor {
@@ -26,9 +28,10 @@ static inline void ceph_pagelist_init(struct ceph_pagelist *pl)
pl->room = 0;
INIT_LIST_HEAD(&pl->free_list);
pl->num_pages_free = 0;
+ atomic_set(&pl->refcnt, 1);
}
-extern int ceph_pagelist_release(struct ceph_pagelist *pl);
+extern void ceph_pagelist_release(struct ceph_pagelist *pl);
extern int ceph_pagelist_append(struct ceph_pagelist *pl, const void *d, size_t l);
--
cgit v1.2.1
From eb179d3975c804ad98eaa403425eb6e48cfd3cc2 Mon Sep 17 00:00:00 2001
From: Fabian Frederick <fabf@skynet.be>
Date: Tue, 30 Sep 2014 22:07:50 +0200
Subject: libceph: remove redundant declaration
ceph_release_page_vector was defined twice in libceph.h
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
---
include/linux/ceph/libceph.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 279b0afac1c1..07bc359b88ac 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -211,7 +211,6 @@ extern struct page **ceph_get_direct_page_vector(const void __user *data,
bool write_page);
extern void ceph_put_page_vector(struct page **pages, int num_pages,
bool dirty);
-extern void ceph_release_page_vector(struct page **pages, int num_pages);
extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);
extern int ceph_copy_user_to_page_vector(struct page **pages,
const void __user *data,
--
cgit v1.2.1
From 70b5bfa360aea4157b45c2863746ca67896c6ef1 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@redhat.com>
Date: Thu, 2 Oct 2014 17:22:29 +0400
Subject: libceph: sync osd op definitions in rados.h
Bring in missing osd ops and strings, use macros to eliminate multiple
points of maintenance.
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
---
include/linux/ceph/rados.h | 225 ++++++++++++++++++++++++++-------------------
1 file changed, 129 insertions(+), 96 deletions(-)
(limited to 'include')
diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h
index f20e0d8a2155..2f822dca1046 100644
--- a/include/linux/ceph/rados.h
+++ b/include/linux/ceph/rados.h
@@ -172,6 +172,7 @@ extern const char *ceph_osd_state_name(int s);
#define CEPH_OSD_OP_MODE_WR 0x2000
#define CEPH_OSD_OP_MODE_RMW 0x3000
#define CEPH_OSD_OP_MODE_SUB 0x4000
+#define CEPH_OSD_OP_MODE_CACHE 0x8000
#define CEPH_OSD_OP_TYPE 0x0f00
#define CEPH_OSD_OP_TYPE_LOCK 0x0100
@@ -181,103 +182,135 @@ extern const char *ceph_osd_state_name(int s);
#define CEPH_OSD_OP_TYPE_PG 0x0500
#define CEPH_OSD_OP_TYPE_MULTI 0x0600 /* multiobject */
+#define __CEPH_OSD_OP1(mode, nr) \
+ (CEPH_OSD_OP_MODE_##mode | (nr))
+
+#define __CEPH_OSD_OP(mode, type, nr) \
+ (CEPH_OSD_OP_MODE_##mode | CEPH_OSD_OP_TYPE_##type | (nr))
+
+#define __CEPH_FORALL_OSD_OPS(f) \
+ /** data **/ \
+ /* read */ \
+ f(READ, __CEPH_OSD_OP(RD, DATA, 1), "read") \
+ f(STAT, __CEPH_OSD_OP(RD, DATA, 2), "stat") \
+ f(MAPEXT, __CEPH_OSD_OP(RD, DATA, 3), "mapext") \
+ \
+ /* fancy read */ \
+ f(MASKTRUNC, __CEPH_OSD_OP(RD, DATA, 4), "masktrunc") \
+ f(SPARSE_READ, __CEPH_OSD_OP(RD, DATA, 5), "sparse-read") \
+ \
+ f(NOTIFY, __CEPH_OSD_OP(RD, DATA, 6), "notify") \
+ f(NOTIFY_ACK, __CEPH_OSD_OP(RD, DATA, 7), "notify-ack") \
+ \
+ /* versioning */ \
+ f(ASSERT_VER, __CEPH_OSD_OP(RD, DATA, 8), "assert-version") \
+ \
+ f(LIST_WATCHERS, __CEPH_OSD_OP(RD, DATA, 9), "list-watchers") \
+ \
+ f(LIST_SNAPS, __CEPH_OSD_OP(RD, DATA, 10), "list-snaps") \
+ \
+ /* sync */ \
+ f(SYNC_READ, __CEPH_OSD_OP(RD, DATA, 11), "sync_read") \
+ \
+ /* write */ \
+ f(WRITE, __CEPH_OSD_OP(WR, DATA, 1), "write") \
+ f(WRITEFULL, __CEPH_OSD_OP(WR, DATA, 2), "writefull") \
+ f(TRUNCATE, __CEPH_OSD_OP(WR, DATA, 3), "truncate") \
+ f(ZERO, __CEPH_OSD_OP(WR, DATA, 4), "zero") \
+ f(DELETE, __CEPH_OSD_OP(WR, DATA, 5), "delete") \
+ \
+ /* fancy write */ \
+ f(APPEND, __CEPH_OSD_OP(WR, DATA, 6), "append") \
+ f(STARTSYNC, __CEPH_OSD_OP(WR, DATA, 7), "startsync") \
+ f(SETTRUNC, __CEPH_OSD_OP(WR, DATA, 8), "settrunc") \
+ f(TRIMTRUNC, __CEPH_OSD_OP(WR, DATA, 9), "trimtrunc") \
+ \
+ f(TMAPUP, __CEPH_OSD_OP(RMW, DATA, 10), "tmapup") \
+ f(TMAPPUT, __CEPH_OSD_OP(WR, DATA, 11), "tmapput") \
+ f(TMAPGET, __CEPH_OSD_OP(RD, DATA, 12), "tmapget") \
+ \
+ f(CREATE, __CEPH_OSD_OP(WR, DATA, 13), "create") \
+ f(ROLLBACK, __CEPH_OSD_OP(WR, DATA, 14), "rollback") \
+ \
+ f(WATCH, __CEPH_OSD_OP(WR, DATA, 15), "watch") \
+ \
+ /* omap */ \
+ f(OMAPGETKEYS, __CEPH_OSD_OP(RD, DATA, 17), "omap-get-keys") \
+ f(OMAPGETVALS, __CEPH_OSD_OP(RD, DATA, 18), "omap-get-vals") \
+ f(OMAPGETHEADER, __CEPH_OSD_OP(RD, DATA, 19), "omap-get-header") \
+ f(OMAPGETVALSBYKEYS, __CEPH_OSD_OP(RD, DATA, 20), "omap-get-vals-by-keys") \
+ f(OMAPSETVALS, __CEPH_OSD_OP(WR, DATA, 21), "omap-set-vals") \
+ f(OMAPSETHEADER, __CEPH_OSD_OP(WR, DATA, 22), "omap-set-header") \
+ f(OMAPCLEAR, __CEPH_OSD_OP(WR, DATA, 23), "omap-clear") \
+ f(OMAPRMKEYS, __CEPH_OSD_OP(WR, DATA, 24), "omap-rm-keys") \
+ f(OMAP_CMP, __CEPH_OSD_OP(RD, DATA, 25), "omap-cmp") \
+ \
+ /* tiering */ \
+ f(COPY_FROM, __CEPH_OSD_OP(WR, DATA, 26), "copy-from") \
+ f(COPY_GET_CLASSIC, __CEPH_OSD_OP(RD, DATA, 27), "copy-get-classic") \
+ f(UNDIRTY, __CEPH_OSD_OP(WR, DATA, 28), "undirty") \
+ f(ISDIRTY, __CEPH_OSD_OP(RD, DATA, 29), "isdirty") \
+ f(COPY_GET, __CEPH_OSD_OP(RD, DATA, 30), "copy-get") \
+ f(CACHE_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 31), "cache-flush") \
+ f(CACHE_EVICT, __CEPH_OSD_OP(CACHE, DATA, 32), "cache-evict") \
+ f(CACHE_TRY_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 33), "cache-try-flush") \
+ \
+ /* convert tmap to omap */ \
+ f(TMAP2OMAP, __CEPH_OSD_OP(RMW, DATA, 34), "tmap2omap") \
+ \
+ /* hints */ \
+ f(SETALLOCHINT, __CEPH_OSD_OP(WR, DATA, 35), "set-alloc-hint") \
+ \
+ /** multi **/ \
+ f(CLONERANGE, __CEPH_OSD_OP(WR, MULTI, 1), "clonerange") \
+ f(ASSERT_SRC_VERSION, __CEPH_OSD_OP(RD, MULTI, 2), "assert-src-version") \
+ f(SRC_CMPXATTR, __CEPH_OSD_OP(RD, MULTI, 3), "src-cmpxattr") \
+ \
+ /** attrs **/ \
+ /* read */ \
+ f(GETXATTR, __CEPH_OSD_OP(RD, ATTR, 1), "getxattr") \
+ f(GETXATTRS, __CEPH_OSD_OP(RD, ATTR, 2), "getxattrs") \
+ f(CMPXATTR, __CEPH_OSD_OP(RD, ATTR, 3), "cmpxattr") \
+ \
+ /* write */ \
+ f(SETXATTR, __CEPH_OSD_OP(WR, ATTR, 1), "setxattr") \
+ f(SETXATTRS, __CEPH_OSD_OP(WR, ATTR, 2), "setxattrs") \
+ f(RESETXATTRS, __CEPH_OSD_OP(WR, ATTR, 3), "resetxattrs") \
+ f(RMXATTR, __CEPH_OSD_OP(WR, ATTR, 4), "rmxattr") \
+ \
+ /** subop **/ \
+ f(PULL, __CEPH_OSD_OP1(SUB, 1), "pull") \
+ f(PUSH, __CEPH_OSD_OP1(SUB, 2), "push") \
+ f(BALANCEREADS, __CEPH_OSD_OP1(SUB, 3), "balance-reads") \
+ f(UNBALANCEREADS, __CEPH_OSD_OP1(SUB, 4), "unbalance-reads") \
+ f(SCRUB, __CEPH_OSD_OP1(SUB, 5), "scrub") \
+ f(SCRUB_RESERVE, __CEPH_OSD_OP1(SUB, 6), "scrub-reserve") \
+ f(SCRUB_UNRESERVE, __CEPH_OSD_OP1(SUB, 7), "scrub-unreserve") \
+ f(SCRUB_STOP, __CEPH_OSD_OP1(SUB, 8), "scrub-stop") \
+ f(SCRUB_MAP, __CEPH_OSD_OP1(SUB, 9), "scrub-map") \
+ \
+ /** lock **/ \
+ f(WRLOCK, __CEPH_OSD_OP(WR, LOCK, 1), "wrlock") \
+ f(WRUNLOCK, __CEPH_OSD_OP(WR, LOCK, 2), "wrunlock") \
+ f(RDLOCK, __CEPH_OSD_OP(WR, LOCK, 3), "rdlock") \
+ f(RDUNLOCK, __CEPH_OSD_OP(WR, LOCK, 4), "rdunlock") \
+ f(UPLOCK, __CEPH_OSD_OP(WR, LOCK, 5), "uplock") \
+ f(DNLOCK, __CEPH_OSD_OP(WR, LOCK, 6), "dnlock") \
+ \
+ /** exec **/ \
+ /* note: the RD bit here is wrong; see special-case below in helper */ \
+ f(CALL, __CEPH_OSD_OP(RD, EXEC, 1), "call") \
+ \
+ /** pg **/ \
+ f(PGLS, __CEPH_OSD_OP(RD, PG, 1), "pgls") \
+ f(PGLS_FILTER, __CEPH_OSD_OP(RD, PG, 2), "pgls-filter") \
+ f(PG_HITSET_LS, __CEPH_OSD_OP(RD, PG, 3), "pg-hitset-ls") \
+ f(PG_HITSET_GET, __CEPH_OSD_OP(RD, PG, 4), "pg-hitset-get")
+
enum {
- /** data **/
- /* read */
- CEPH_OSD_OP_READ = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 1,
- CEPH_OSD_OP_STAT = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 2,
- CEPH_OSD_OP_MAPEXT = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 3,
-
- /* fancy read */
- CEPH_OSD_OP_MASKTRUNC = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 4,
- CEPH_OSD_OP_SPARSE_READ = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 5,
-
- CEPH_OSD_OP_NOTIFY = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 6,
- CEPH_OSD_OP_NOTIFY_ACK = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 7,
-
- /* versioning */
- CEPH_OSD_OP_ASSERT_VER = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 8,
-
- /* write */
- CEPH_OSD_OP_WRITE = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 1,
- CEPH_OSD_OP_WRITEFULL = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 2,
- CEPH_OSD_OP_TRUNCATE = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 3,
- CEPH_OSD_OP_ZERO = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 4,
- CEPH_OSD_OP_DELETE = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 5,
-
- /* fancy write */
- CEPH_OSD_OP_APPEND = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 6,
- CEPH_OSD_OP_STARTSYNC = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 7,
- CEPH_OSD_OP_SETTRUNC = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 8,
- CEPH_OSD_OP_TRIMTRUNC = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 9,
-
- CEPH_OSD_OP_TMAPUP = CEPH_OSD_OP_MODE_RMW | CEPH_OSD_OP_TYPE_DATA | 10,
- CEPH_OSD_OP_TMAPPUT = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 11,
- CEPH_OSD_OP_TMAPGET = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 12,
-
- CEPH_OSD_OP_CREATE = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 13,
- CEPH_OSD_OP_ROLLBACK= CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 14,
-
- CEPH_OSD_OP_WATCH = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 15,
-
- /* omap */
- CEPH_OSD_OP_OMAPGETKEYS = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 17,
- CEPH_OSD_OP_OMAPGETVALS = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 18,
- CEPH_OSD_OP_OMAPGETHEADER = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 19,
- CEPH_OSD_OP_OMAPGETVALSBYKEYS =
- CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 20,
- CEPH_OSD_OP_OMAPSETVALS = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 21,
- CEPH_OSD_OP_OMAPSETHEADER = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 22,
- CEPH_OSD_OP_OMAPCLEAR = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 23,
- CEPH_OSD_OP_OMAPRMKEYS = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 24,
- CEPH_OSD_OP_OMAP_CMP = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 25,
-
- /* hints */
- CEPH_OSD_OP_SETALLOCHINT = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 35,
-
- /** multi **/
- CEPH_OSD_OP_CLONERANGE = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_MULTI | 1,
- CEPH_OSD_OP_ASSERT_SRC_VERSION = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_MULTI | 2,
- CEPH_OSD_OP_SRC_CMPXATTR = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_MULTI | 3,
-
- /** attrs **/
- /* read */
- CEPH_OSD_OP_GETXATTR = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_ATTR | 1,
- CEPH_OSD_OP_GETXATTRS = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_ATTR | 2,
- CEPH_OSD_OP_CMPXATTR = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_ATTR | 3,
-
- /* write */
- CEPH_OSD_OP_SETXATTR = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_ATTR | 1,
- CEPH_OSD_OP_SETXATTRS = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_ATTR | 2,
- CEPH_OSD_OP_RESETXATTRS = CEPH_OSD_OP_MODE_WR|CEPH_OSD_OP_TYPE_ATTR | 3,
- CEPH_OSD_OP_RMXATTR = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_ATTR | 4,
-
- /** subop **/
- CEPH_OSD_OP_PULL = CEPH_OSD_OP_MODE_SUB | 1,
- CEPH_OSD_OP_PUSH = CEPH_OSD_OP_MODE_SUB | 2,
- CEPH_OSD_OP_BALANCEREADS = CEPH_OSD_OP_MODE_SUB | 3,
- CEPH_OSD_OP_UNBALANCEREADS = CEPH_OSD_OP_MODE_SUB | 4,
- CEPH_OSD_OP_SCRUB = CEPH_OSD_OP_MODE_SUB | 5,
- CEPH_OSD_OP_SCRUB_RESERVE = CEPH_OSD_OP_MODE_SUB | 6,
- CEPH_OSD_OP_SCRUB_UNRESERVE = CEPH_OSD_OP_MODE_SUB | 7,
- CEPH_OSD_OP_SCRUB_STOP = CEPH_OSD_OP_MODE_SUB | 8,
- CEPH_OSD_OP_SCRUB_MAP = CEPH_OSD_OP_MODE_SUB | 9,
-
- /** lock **/
- CEPH_OSD_OP_WRLOCK = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_LOCK | 1,
- CEPH_OSD_OP_WRUNLOCK = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_LOCK | 2,
- CEPH_OSD_OP_RDLOCK = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_LOCK | 3,
- CEPH_OSD_OP_RDUNLOCK = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_LOCK | 4,
- CEPH_OSD_OP_UPLOCK = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_LOCK | 5,
- CEPH_OSD_OP_DNLOCK = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_LOCK | 6,
-
- /** exec **/
- /* note: the RD bit here is wrong; see special-case below in helper */
- CEPH_OSD_OP_CALL = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_EXEC | 1,
-
- /** pg **/
- CEPH_OSD_OP_PGLS = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_PG | 1,
- CEPH_OSD_OP_PGLS_FILTER = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_PG | 2,
+#define GENERATE_ENUM_ENTRY(op, opcode, str) CEPH_OSD_OP_##op = (opcode),
+__CEPH_FORALL_OSD_OPS(GENERATE_ENUM_ENTRY)
+#undef GENERATE_ENUM_ENTRY
};
static inline int ceph_osd_op_type_lock(int op)
--
cgit v1.2.1
From c15952dc18d8a293d976ac6c06d44d9d98023b45 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Tue, 14 Oct 2014 02:08:54 -0700
Subject: net: filter: move common defines into bpf_common.h
userspace programs that use eBPF instruction macros need to include two files:
uapi/linux/filter.h and uapi/linux/bpf.h
Move common macro definitions that are shared between classic BPF and eBPF
into uapi/linux/bpf_common.h, so that user app can include only one bpf.h file
Cc: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/bpf.h | 1 +
include/uapi/linux/bpf_common.h | 55 ++++++++++++++++++++++++++++++++++++++++
include/uapi/linux/filter.h | 56 +----------------------------------------
4 files changed, 58 insertions(+), 55 deletions(-)
create mode 100644 include/uapi/linux/bpf_common.h
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 70e150ebc6c9..1115d68b150f 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -68,6 +68,7 @@ header-y += binfmts.h
header-y += blkpg.h
header-y += blktrace_api.h
header-y += bpf.h
+header-y += bpf_common.h
header-y += bpqether.h
header-y += bsg.h
header-y += btrfs.h
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 31b0ac208a52..d18316f9e9c4 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -8,6 +8,7 @@
#define _UAPI__LINUX_BPF_H__
#include <linux/types.h>
+#include <linux/bpf_common.h>
/* Extended instruction set based on top of classic BPF */
diff --git a/include/uapi/linux/bpf_common.h b/include/uapi/linux/bpf_common.h
new file mode 100644
index 000000000000..a5c220e0828f
--- /dev/null
+++ b/include/uapi/linux/bpf_common.h
@@ -0,0 +1,55 @@
+#ifndef _UAPI__LINUX_BPF_COMMON_H__
+#define _UAPI__LINUX_BPF_COMMON_H__
+
+/* Instruction classes */
+#define BPF_CLASS(code) ((code) & 0x07)
+#define BPF_LD 0x00
+#define BPF_LDX 0x01
+#define BPF_ST 0x02
+#define BPF_STX 0x03
+#define BPF_ALU 0x04
+#define BPF_JMP 0x05
+#define BPF_RET 0x06
+#define BPF_MISC 0x07
+
+/* ld/ldx fields */
+#define BPF_SIZE(code) ((code) & 0x18)
+#define BPF_W 0x00
+#define BPF_H 0x08
+#define BPF_B 0x10
+#define BPF_MODE(code) ((code) & 0xe0)
+#define BPF_IMM 0x00
+#define BPF_ABS 0x20
+#define BPF_IND 0x40
+#define BPF_MEM 0x60
+#define BPF_LEN 0x80
+#define BPF_MSH 0xa0
+
+/* alu/jmp fields */
+#define BPF_OP(code) ((code) & 0xf0)
+#define BPF_ADD 0x00
+#define BPF_SUB 0x10
+#define BPF_MUL 0x20
+#define BPF_DIV 0x30
+#define BPF_OR 0x40
+#define BPF_AND 0x50
+#define BPF_LSH 0x60
+#define BPF_RSH 0x70
+#define BPF_NEG 0x80
+#define BPF_MOD 0x90
+#define BPF_XOR 0xa0
+
+#define BPF_JA 0x00
+#define BPF_JEQ 0x10
+#define BPF_JGT 0x20
+#define BPF_JGE 0x30
+#define BPF_JSET 0x40
+#define BPF_SRC(code) ((code) & 0x08)
+#define BPF_K 0x00
+#define BPF_X 0x08
+
+#ifndef BPF_MAXINSNS
+#define BPF_MAXINSNS 4096
+#endif
+
+#endif /* _UAPI__LINUX_BPF_COMMON_H__ */
diff --git a/include/uapi/linux/filter.h b/include/uapi/linux/filter.h
index 253b4d42cf2b..47785d5ecf17 100644
--- a/include/uapi/linux/filter.h
+++ b/include/uapi/linux/filter.h
@@ -7,7 +7,7 @@
#include <linux/compiler.h>
#include <linux/types.h>
-
+#include <linux/bpf_common.h>
/*
* Current version of the filter code architecture.
@@ -32,56 +32,6 @@ struct sock_fprog { /* Required for SO_ATTACH_FILTER. */
struct sock_filter __user *filter;
};
-/*
- * Instruction classes
- */
-
-#define BPF_CLASS(code) ((code) & 0x07)
-#define BPF_LD 0x00
-#define BPF_LDX 0x01
-#define BPF_ST 0x02
-#define BPF_STX 0x03
-#define BPF_ALU 0x04
-#define BPF_JMP 0x05
-#define BPF_RET 0x06
-#define BPF_MISC 0x07
-
-/* ld/ldx fields */
-#define BPF_SIZE(code) ((code) & 0x18)
-#define BPF_W 0x00
-#define BPF_H 0x08
-#define BPF_B 0x10
-#define BPF_MODE(code) ((code) & 0xe0)
-#define BPF_IMM 0x00
-#define BPF_ABS 0x20
-#define BPF_IND 0x40
-#define BPF_MEM 0x60
-#define BPF_LEN 0x80
-#define BPF_MSH 0xa0
-
-/* alu/jmp fields */
-#define BPF_OP(code) ((code) & 0xf0)
-#define BPF_ADD 0x00
-#define BPF_SUB 0x10
-#define BPF_MUL 0x20
-#define BPF_DIV 0x30
-#define BPF_OR 0x40
-#define BPF_AND 0x50
-#define BPF_LSH 0x60
-#define BPF_RSH 0x70
-#define BPF_NEG 0x80
-#define BPF_MOD 0x90
-#define BPF_XOR 0xa0
-
-#define BPF_JA 0x00
-#define BPF_JEQ 0x10
-#define BPF_JGT 0x20
-#define BPF_JGE 0x30
-#define BPF_JSET 0x40
-#define BPF_SRC(code) ((code) & 0x08)
-#define BPF_K 0x00
-#define BPF_X 0x08
-
/* ret - BPF_K and BPF_X also apply */
#define BPF_RVAL(code) ((code) & 0x18)
#define BPF_A 0x10
@@ -91,10 +41,6 @@ struct sock_fprog { /* Required for SO_ATTACH_FILTER. */
#define BPF_TAX 0x00
#define BPF_TXA 0x80
-#ifndef BPF_MAXINSNS
-#define BPF_MAXINSNS 4096
-#endif
-
/*
* Macros for filter block array initializers.
*/
--
cgit v1.2.1
From db404b13617fe0cdb415da55762203d456837912 Mon Sep 17 00:00:00 2001
From: Mark Rustad <mark.d.rustad@intel.com>
Date: Tue, 14 Oct 2014 06:28:38 -0700
Subject: genl_magic: Resolve logical-op warnings
Resolve "logical 'and' applied to non-boolean constant" warnings"
that appear in W=2 builds by adding !! to a bit test.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/genl_magic_func.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index c0894dd8827b..667c31101b8b 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -178,12 +178,12 @@ static int s_name ## _from_attrs_for_change(struct s_name *s, \
#define __assign(attr_nr, attr_flag, name, nla_type, type, assignment...) \
nla = ntb[attr_nr]; \
if (nla) { \
- if (exclude_invariants && ((attr_flag) & DRBD_F_INVARIANT)) { \
+ if (exclude_invariants && !!((attr_flag) & DRBD_F_INVARIANT)) { \
pr_info("<< must not change invariant attr: %s\n", #name); \
return -EEXIST; \
} \
assignment; \
- } else if (exclude_invariants && ((attr_flag) & DRBD_F_INVARIANT)) { \
+ } else if (exclude_invariants && !!((attr_flag) & DRBD_F_INVARIANT)) { \
/* attribute missing from payload, */ \
/* which was expected */ \
} else if ((attr_flag) & DRBD_F_REQUIRED) { \
--
cgit v1.2.1
From 016c98c6fe0c914d12e2e242b2bccde6d6dea54b Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 14 Oct 2014 10:40:34 +1030
Subject: virtio: unify config_changed handling
Replace duplicated code in all transports with a single wrapper in
virtio.c.
The only functional change is in virtio_mmio.c: if a buggy device sends
us an interrupt before driver is set, we previously returned IRQ_NONE,
now we return IRQ_HANDLED.
As this must not happen in practice, this does not look like a big deal.
See also commit 3fff0179e33cd7d0a688dab65700c46ad089e934
virtio-pci: do not oops on config change if driver not loaded.
for the original motivation behind the driver check.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/virtio.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index b46671e28de2..3c19bd3189cb 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -108,6 +108,8 @@ void unregister_virtio_device(struct virtio_device *dev);
void virtio_break_device(struct virtio_device *dev);
+void virtio_config_changed(struct virtio_device *dev);
+
/**
* virtio_driver - operations for a virtio I/O driver
* @driver: underlying device driver (populate name and owner).
--
cgit v1.2.1
From c6716bae52f97347e25166c6270aa98693d9212c Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 14 Oct 2014 10:40:35 +1030
Subject: virtio-pci: move freeze/restore to virtio core
This is in preparation to extending config changed event handling
in core.
Wrapping these in an API also seems to make for a cleaner code.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/virtio.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 3c19bd3189cb..8df7ba81e5c7 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -78,6 +78,7 @@ bool virtqueue_is_broken(struct virtqueue *vq);
/**
* virtio_device - representation of a device using virtio
* @index: unique position on the virtio bus
+ * @failed: saved value for CONFIG_S_FAILED bit (for restore)
* @dev: underlying device.
* @id: the device type identification (used to match it with a driver).
* @config: the configuration ops for this device.
@@ -88,6 +89,7 @@ bool virtqueue_is_broken(struct virtqueue *vq);
*/
struct virtio_device {
int index;
+ bool failed;
struct device dev;
struct virtio_device_id id;
const struct virtio_config_ops *config;
@@ -109,6 +111,10 @@ void unregister_virtio_device(struct virtio_device *dev);
void virtio_break_device(struct virtio_device *dev);
void virtio_config_changed(struct virtio_device *dev);
+#ifdef CONFIG_PM_SLEEP
+int virtio_device_freeze(struct virtio_device *dev);
+int virtio_device_restore(struct virtio_device *dev);
+#endif
/**
* virtio_driver - operations for a virtio I/O driver
--
cgit v1.2.1
From 22b7050a024d7deb0c9ef1e14ed73e3b1e369f24 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 15 Oct 2014 10:21:55 +1030
Subject: virtio: defer config changed notifications
Defer config changed notifications that arrive during
probe/scan/freeze/restore.
This will allow drivers to set DRIVER_OK earlier, without worrying about
racing with config change interrupts.
This change will also benefit old hypervisors (before 2009)
that send interrupts without checking DRIVER_OK: previously,
the callback could race with driver-specific initialization.
This will also help simplify drivers.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (cosmetic changes)
---
include/linux/virtio.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 8df7ba81e5c7..65261a7244fc 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -79,6 +79,9 @@ bool virtqueue_is_broken(struct virtqueue *vq);
* virtio_device - representation of a device using virtio
* @index: unique position on the virtio bus
* @failed: saved value for CONFIG_S_FAILED bit (for restore)
+ * @config_enabled: configuration change reporting enabled
+ * @config_change_pending: configuration change reported while disabled
+ * @config_lock: protects configuration change reporting
* @dev: underlying device.
* @id: the device type identification (used to match it with a driver).
* @config: the configuration ops for this device.
@@ -90,6 +93,9 @@ bool virtqueue_is_broken(struct virtqueue *vq);
struct virtio_device {
int index;
bool failed;
+ bool config_enabled;
+ bool config_change_pending;
+ spinlock_t config_lock;
struct device dev;
struct virtio_device_id id;
const struct virtio_config_ops *config;
--
cgit v1.2.1
From 3569db593081fd88bbd6df21b9b0531873f2042c Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 15 Oct 2014 10:22:30 +1030
Subject: virtio: add API to enable VQs early
virtio spec 0.9.X requires DRIVER_OK to be set before
VQs are used, but some drivers use VQs before probe
function returns.
Since DRIVER_OK is set after probe, this violates the spec.
Even though under virtio 1.0 transitional devices support this
behaviour, we want to make it possible for those early callers to become
spec compliant and eventually support non-transitional devices.
Add API for drivers to call before using VQs.
Sets DRIVER_OK internally.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/virtio_config.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
(limited to 'include')
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index e8f8f71e843c..7f4ef66873ef 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -109,6 +109,23 @@ struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev,
return vq;
}
+/**
+ * virtio_device_ready - enable vq use in probe function
+ * @vdev: the device
+ *
+ * Driver must call this to use vqs in the probe function.
+ *
+ * Note: vqs are enabled automatically after probe returns.
+ */
+static inline
+void virtio_device_ready(struct virtio_device *dev)
+{
+ unsigned status = dev->config->get_status(dev);
+
+ BUG_ON(status & VIRTIO_CONFIG_S_DRIVER_OK);
+ dev->config->set_status(dev, status | VIRTIO_CONFIG_S_DRIVER_OK);
+}
+
static inline
const char *virtio_bus_name(struct virtio_device *vdev)
{
--
cgit v1.2.1
From 46e8c83c83c06b90ebc000df481c2fdcee79a141 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 23 Sep 2014 17:18:10 +0300
Subject: dmaengine: dw: move private definitions to regs.h
Since we don't allow user to set registers directly through private slave
configuration we may move definitions to the regs.h because they are not used
anywhere except core.c part.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/platform_data/dma-dw.h | 31 -------------------------------
1 file changed, 31 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/dma-dw.h b/include/linux/platform_data/dma-dw.h
index bc411a1bf8e7..d0c97da66e22 100644
--- a/include/linux/platform_data/dma-dw.h
+++ b/include/linux/platform_data/dma-dw.h
@@ -56,37 +56,6 @@ struct dw_dma_platform_data {
unsigned char data_width[4];
};
-/* bursts size */
-enum dw_dma_msize {
- DW_DMA_MSIZE_1,
- DW_DMA_MSIZE_4,
- DW_DMA_MSIZE_8,
- DW_DMA_MSIZE_16,
- DW_DMA_MSIZE_32,
- DW_DMA_MSIZE_64,
- DW_DMA_MSIZE_128,
- DW_DMA_MSIZE_256,
-};
-
-/* Platform-configurable bits in CFG_HI */
-#define DWC_CFGH_FCMODE (1 << 0)
-#define DWC_CFGH_FIFO_MODE (1 << 1)
-#define DWC_CFGH_PROTCTL(x) ((x) << 2)
-#define DWC_CFGH_SRC_PER(x) ((x) << 7)
-#define DWC_CFGH_DST_PER(x) ((x) << 11)
-
-/* Platform-configurable bits in CFG_LO */
-#define DWC_CFGL_LOCK_CH_XFER (0 << 12) /* scope of LOCK_CH */
-#define DWC_CFGL_LOCK_CH_BLOCK (1 << 12)
-#define DWC_CFGL_LOCK_CH_XACT (2 << 12)
-#define DWC_CFGL_LOCK_BUS_XFER (0 << 14) /* scope of LOCK_BUS */
-#define DWC_CFGL_LOCK_BUS_BLOCK (1 << 14)
-#define DWC_CFGL_LOCK_BUS_XACT (2 << 14)
-#define DWC_CFGL_LOCK_CH (1 << 15) /* channel lockout */
-#define DWC_CFGL_LOCK_BUS (1 << 16) /* busmaster lockout */
-#define DWC_CFGL_HS_DST_POL (1 << 18) /* dst handshake active low */
-#define DWC_CFGL_HS_SRC_POL (1 << 19) /* src handshake active low */
-
/* DMA API extensions */
struct dw_cyclic_desc {
struct dw_desc **desc;
--
cgit v1.2.1
From 3d588f83e4d6a5230d9094b97d38621cbaa9a972 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 23 Sep 2014 17:18:11 +0300
Subject: dmaengine: dw: split dma-dw.h to platform and private parts
The introduced include/linux/dma/dw.h is going to contain the private
extensions and structures which are shared for dw_dmac users in the kernel.
Meanwhile include/linux/platform_data/dma-dw.h keeps only platform related data
types and definitions.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/dma/dw.h | 37 ++++++++++++++++++++++++++++++++++++
include/linux/platform_data/dma-dw.h | 27 ++++----------------------
2 files changed, 41 insertions(+), 23 deletions(-)
create mode 100644 include/linux/dma/dw.h
(limited to 'include')
diff --git a/include/linux/dma/dw.h b/include/linux/dma/dw.h
new file mode 100644
index 000000000000..24756130eadb
--- /dev/null
+++ b/include/linux/dma/dw.h
@@ -0,0 +1,37 @@
+/*
+ * Driver for the Synopsys DesignWare DMA Controller
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ * Copyright (C) 2010-2011 ST Microelectronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _DMA_DW_H
+#define _DMA_DW_H
+
+#include <linux/dmaengine.h>
+
+/* DMA API extensions */
+struct dw_desc;
+
+struct dw_cyclic_desc {
+ struct dw_desc **desc;
+ unsigned long periods;
+ void (*period_callback)(void *param);
+ void *period_callback_param;
+};
+
+struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
+ dma_addr_t buf_addr, size_t buf_len, size_t period_len,
+ enum dma_transfer_direction direction);
+void dw_dma_cyclic_free(struct dma_chan *chan);
+int dw_dma_cyclic_start(struct dma_chan *chan);
+void dw_dma_cyclic_stop(struct dma_chan *chan);
+
+dma_addr_t dw_dma_get_src_addr(struct dma_chan *chan);
+
+dma_addr_t dw_dma_get_dst_addr(struct dma_chan *chan);
+
+#endif /* _DMA_DW_H */
diff --git a/include/linux/platform_data/dma-dw.h b/include/linux/platform_data/dma-dw.h
index d0c97da66e22..d8155c005242 100644
--- a/include/linux/platform_data/dma-dw.h
+++ b/include/linux/platform_data/dma-dw.h
@@ -8,10 +8,10 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#ifndef DW_DMAC_H
-#define DW_DMAC_H
+#ifndef _PLATFORM_DATA_DMA_DW_H
+#define _PLATFORM_DATA_DMA_DW_H
-#include <linux/dmaengine.h>
+#include <linux/device.h>
/**
* struct dw_dma_slave - Controller-specific information about a slave
@@ -56,23 +56,4 @@ struct dw_dma_platform_data {
unsigned char data_width[4];
};
-/* DMA API extensions */
-struct dw_cyclic_desc {
- struct dw_desc **desc;
- unsigned long periods;
- void (*period_callback)(void *param);
- void *period_callback_param;
-};
-
-struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
- dma_addr_t buf_addr, size_t buf_len, size_t period_len,
- enum dma_transfer_direction direction);
-void dw_dma_cyclic_free(struct dma_chan *chan);
-int dw_dma_cyclic_start(struct dma_chan *chan);
-void dw_dma_cyclic_stop(struct dma_chan *chan);
-
-dma_addr_t dw_dma_get_src_addr(struct dma_chan *chan);
-
-dma_addr_t dw_dma_get_dst_addr(struct dma_chan *chan);
-
-#endif /* DW_DMAC_H */
+#endif /* _PLATFORM_DATA_DMA_DW_H */
--
cgit v1.2.1
From 2a52f6e49e5e400ed98a79503193d81207009647 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 23 Sep 2014 17:18:15 +0300
Subject: dmaengine: dw: export probe()/remove() and Co to users
The driver library functions can be used directly by the compound devices such
as ADSP or serial driver where DesignWare DMA IP is privately attached to the
main hardware.
Instead of creating a new platform device leaf they may call dw_dma_probe()
with given struct dw_dma_chip directly and make sure that the main device is
DMA capable.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/dma/dw.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
(limited to 'include')
diff --git a/include/linux/dma/dw.h b/include/linux/dma/dw.h
index 24756130eadb..71456442ebe3 100644
--- a/include/linux/dma/dw.h
+++ b/include/linux/dma/dw.h
@@ -3,6 +3,7 @@
*
* Copyright (C) 2007 Atmel Corporation
* Copyright (C) 2010-2011 ST Microelectronics
+ * Copyright (C) 2014 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -11,8 +12,34 @@
#ifndef _DMA_DW_H
#define _DMA_DW_H
+#include <linux/clk.h>
+#include <linux/device.h>
#include <linux/dmaengine.h>
+#include <linux/platform_data/dma-dw.h>
+
+struct dw_dma;
+
+/**
+ * struct dw_dma_chip - representation of DesignWare DMA controller hardware
+ * @dev: struct device of the DMA controller
+ * @irq: irq line
+ * @regs: memory mapped I/O space
+ * @clk: hclk clock
+ * @dw: struct dw_dma that is filed by dw_dma_probe()
+ */
+struct dw_dma_chip {
+ struct device *dev;
+ int irq;
+ void __iomem *regs;
+ struct clk *clk;
+ struct dw_dma *dw;
+};
+
+/* Export to the platform drivers */
+int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata);
+int dw_dma_remove(struct dw_dma_chip *chip);
+
/* DMA API extensions */
struct dw_desc;
--
cgit v1.2.1
From b65612a868768cd0431084ccf376d0946c12132d Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Sat, 11 Oct 2014 21:16:43 +0530
Subject: dmaengine: add dmaengine_prep_dma_sg() helper
This was only prep API which didnt have an helper
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/dmaengine.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 1f9e642c66ad..7e6b3a281da8 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -755,6 +755,16 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma(
return chan->device->device_prep_interleaved_dma(chan, xt, flags);
}
+static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg(
+ struct dma_chan *chan,
+ struct scatterlist *dst_sg, unsigned int dst_nents,
+ struct scatterlist *src_sg, unsigned int src_nents,
+ unsigned long flags)
+{
+ return chan->device->device_prep_dma_sg(chan, dst_sg, dst_nents,
+ src_sg, src_nents, flags);
+}
+
static inline int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
{
if (!chan || !caps)
--
cgit v1.2.1
From 0a5642be03293f73706961a7649ac1d12bd0be59 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Sat, 11 Oct 2014 21:16:44 +0530
Subject: dmaengine: freescale: add and export fsl_dma_external_start()
The freescale driver uses custom device control FSLDMA_EXTERNAL_START to
put the controller in external start mode.
Since we are planning to deprecate the device control, move this to exported
API. Subsequent patches will remove the FSLDMA_EXTERNAL_START
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/fsldma.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
create mode 100644 include/linux/fsldma.h
(limited to 'include')
diff --git a/include/linux/fsldma.h b/include/linux/fsldma.h
new file mode 100644
index 000000000000..b213c02963c9
--- /dev/null
+++ b/include/linux/fsldma.h
@@ -0,0 +1,13 @@
+/*
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef FSL_DMA_H
+#define FSL_DMA_H
+/* fsl dma API for enxternal start */
+int fsl_dma_external_start(struct dma_chan *dchan, int enable);
+
+#endif
--
cgit v1.2.1
From b80719b6bd083130c112cb4d3e5329a164eef4c3 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Sat, 11 Oct 2014 21:16:48 +0530
Subject: dmaengine: remove FSLDMA_EXTERNAL_START
as users have been converted, so no need of this custom method
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/dmaengine.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 7e6b3a281da8..f8e5a9ea461a 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -199,15 +199,12 @@ enum dma_ctrl_flags {
* configuration data in statically from the platform). An additional
* argument of struct dma_slave_config must be passed in with this
* command.
- * @FSLDMA_EXTERNAL_START: this command will put the Freescale DMA controller
- * into external start mode.
*/
enum dma_ctrl_cmd {
DMA_TERMINATE_ALL,
DMA_PAUSE,
DMA_RESUME,
DMA_SLAVE_CONFIG,
- FSLDMA_EXTERNAL_START,
};
/**
--
cgit v1.2.1
From 04ffcb255f22a2a988ce7393e6e72f6eb3fcb7aa Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Tue, 14 Oct 2014 15:19:06 -0700
Subject: net: Add ndo_gso_check
Add ndo_gso_check which a device can define to indicate whether is
is capable of doing GSO on a packet. This funciton would be called from
the stack to determine whether software GSO is needed to be done. A
driver should populate this function if it advertises GSO types for
which there are combinations that it wouldn't be able to handle. For
instance a device that performs UDP tunneling might only implement
support for transparent Ethernet bridging type of inner packets
or might have limitations on lengths of inner headers.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 838407aea705..74fd5d37f15a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -998,6 +998,12 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
* Callback to use for xmit over the accelerated station. This
* is used in place of ndo_start_xmit on accelerated net
* devices.
+ * bool (*ndo_gso_check) (struct sk_buff *skb,
+ * struct net_device *dev);
+ * Called by core transmit path to determine if device is capable of
+ * performing GSO on a packet. The device returns true if it is
+ * able to GSO the packet, false otherwise. If the return value is
+ * false the stack will do software GSO.
*/
struct net_device_ops {
int (*ndo_init)(struct net_device *dev);
@@ -1147,6 +1153,8 @@ struct net_device_ops {
struct net_device *dev,
void *priv);
int (*ndo_get_lock_subclass)(struct net_device *dev);
+ bool (*ndo_gso_check) (struct sk_buff *skb,
+ struct net_device *dev);
};
/**
@@ -3572,10 +3580,12 @@ static inline bool skb_gso_ok(struct sk_buff *skb, netdev_features_t features)
(!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST));
}
-static inline bool netif_needs_gso(struct sk_buff *skb,
+static inline bool netif_needs_gso(struct net_device *dev, struct sk_buff *skb,
netdev_features_t features)
{
return skb_is_gso(skb) && (!skb_gso_ok(skb, features) ||
+ (dev->netdev_ops->ndo_gso_check &&
+ !dev->netdev_ops->ndo_gso_check(skb, dev)) ||
unlikely((skb->ip_summed != CHECKSUM_PARTIAL) &&
(skb->ip_summed != CHECKSUM_UNNECESSARY)));
}
--
cgit v1.2.1
From 2df36a5dd6792870bef48f63bfca42055ea5b79c Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Sun, 28 Sep 2014 16:04:26 +0200
Subject: arm/arm64: KVM: Fix BE accesses to GICv2 EISR and ELRSR regs
The EIRSR and ELRSR registers are 32-bit registers on GICv2, and we
store these as an array of two such registers on the vgic vcpu struct.
However, we access them as a single 64-bit value or as a bitmap pointer
in the generic vgic code, which breaks BE support.
Instead, store them as u64 values on the vgic structure and do the
word-swapping in the assembly code, which already handles the byte order
for BE systems.
Tested-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_vgic.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index ec559d3264cc..206dcc3b3f7a 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -219,8 +219,8 @@ struct vgic_v2_cpu_if {
u32 vgic_hcr;
u32 vgic_vmcr;
u32 vgic_misr; /* Saved only */
- u32 vgic_eisr[2]; /* Saved only */
- u32 vgic_elrsr[2]; /* Saved only */
+ u64 vgic_eisr; /* Saved only */
+ u64 vgic_elrsr; /* Saved only */
u32 vgic_apr;
u32 vgic_lr[VGIC_V2_MAX_LRS];
};
--
cgit v1.2.1
From 2c6ba4b15b5ef38213b6c42ce09e9398f78cef9f Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Thu, 16 Oct 2014 15:47:51 +0200
Subject: netlink: fix description of portid
Avoid confusion between pid and portid.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/netlink.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 6c1076275aaa..7b903e1bdbbb 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -431,7 +431,7 @@ static inline int nlmsg_report(const struct nlmsghdr *nlh)
/**
* nlmsg_put - Add a new netlink message to an skb
* @skb: socket buffer to store message in
- * @portid: netlink process id
+ * @portid: netlink PORTID of requesting application
* @seq: sequence number of message
* @type: message type
* @payload: length of message payload
--
cgit v1.2.1
From d4c5efdb97773f59a2b711754ca0953f24516739 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 26 Aug 2014 23:16:35 -0400
Subject: random: add and use memzero_explicit() for clearing data
zatimend has reported that in his environment (3.16/gcc4.8.3/corei7)
memset() calls which clear out sensitive data in extract_{buf,entropy,
entropy_user}() in random driver are being optimized away by gcc.
Add a helper memzero_explicit() (similarly as explicit_bzero() variants)
that can be used in such cases where a variable with sensitive data is
being cleared out in the end. Other use cases might also be in crypto
code. [ I have put this into lib/string.c though, as it's always built-in
and doesn't need any dependencies then. ]
Fixes kernel bugzilla: 82041
Reported-by: zatimend@hotmail.co.uk
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
---
include/linux/string.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/string.h b/include/linux/string.h
index d36977e029af..3b42b3732da6 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -132,7 +132,7 @@ int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) __printf(3, 4);
#endif
extern ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
- const void *from, size_t available);
+ const void *from, size_t available);
/**
* strstarts - does @str start with @prefix?
@@ -144,7 +144,8 @@ static inline bool strstarts(const char *str, const char *prefix)
return strncmp(str, prefix, strlen(prefix)) == 0;
}
-extern size_t memweight(const void *ptr, size_t bytes);
+size_t memweight(const void *ptr, size_t bytes);
+void memzero_explicit(void *s, size_t count);
/**
* kbasename - return the last part of a pathname.
--
cgit v1.2.1
From e25f866fbc8a4bf387b5dbe8e25aa5b07e55c74f Mon Sep 17 00:00:00 2001
From: Cong Wang <cwang@twopensource.com>
Date: Wed, 15 Oct 2014 14:33:21 -0700
Subject: ipv4: share tcp_v4_save_options() with cookie_v4_check()
cookie_v4_check() allocates ip_options_rcu in the same way
with tcp_v4_save_options(), we can just make it a helper function.
Cc: Krzysztof Kolasa <kkolasa@winsoft.pl>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 74efeda994b3..869637a7caf7 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1666,4 +1666,24 @@ int tcpv4_offload_init(void);
void tcp_v4_init(void);
void tcp_init(void);
+/*
+ * Save and compile IPv4 options, return a pointer to it
+ */
+static inline struct ip_options_rcu *tcp_v4_save_options(struct sk_buff *skb)
+{
+ const struct ip_options *opt = &TCP_SKB_CB(skb)->header.h4.opt;
+ struct ip_options_rcu *dopt = NULL;
+
+ if (opt && opt->optlen) {
+ int opt_size = sizeof(*dopt) + opt->optlen;
+
+ dopt = kmalloc(opt_size, GFP_ATOMIC);
+ if (dopt && __ip_options_echo(&dopt->opt, skb, opt)) {
+ kfree(dopt);
+ dopt = NULL;
+ }
+ }
+ return dopt;
+}
+
#endif /* _TCP_H */
--
cgit v1.2.1
From 461b74c391c4ec9c766794e158508c357d8952e6 Mon Sep 17 00:00:00 2001
From: Cong Wang <cwang@twopensource.com>
Date: Wed, 15 Oct 2014 14:33:22 -0700
Subject: ipv4: clean up cookie_v4_check()
We can retrieve opt from skb, no need to pass it as a parameter.
And opt should always be non-NULL, no need to check.
Cc: Krzysztof Kolasa <kkolasa@winsoft.pl>
Cc: Eric Dumazet <edumazet@google.com>
Tested-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 869637a7caf7..3a4bbbfdcf8d 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -468,8 +468,7 @@ void inet_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb);
/* From syncookies.c */
int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th,
u32 cookie);
-struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
- struct ip_options *opt);
+struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb);
#ifdef CONFIG_SYN_COOKIES
/* Syncookies use a monotonic timer which increments every 60 seconds.
@@ -1674,7 +1673,7 @@ static inline struct ip_options_rcu *tcp_v4_save_options(struct sk_buff *skb)
const struct ip_options *opt = &TCP_SKB_CB(skb)->header.h4.opt;
struct ip_options_rcu *dopt = NULL;
- if (opt && opt->optlen) {
+ if (opt->optlen) {
int opt_size = sizeof(*dopt) + opt->optlen;
dopt = kmalloc(opt_size, GFP_ATOMIC);
--
cgit v1.2.1
From 70f3ce0510afdad7cbaf27ab7ab961377205c782 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Mon, 29 Sep 2014 11:47:54 +0200
Subject: mtd: spi-nor: make spi_nor_scan() take a chip type name, not
spi_device_id
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Drivers currently call spi_nor_match_id() and then spi_nor_scan().
This adds a dependency on struct spi_device_id which we want to
avoid. Make spi_nor_scan() do it for them.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/spi-nor.h | 20 +++-----------------
1 file changed, 3 insertions(+), 17 deletions(-)
(limited to 'include')
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 9e6294f32ba8..a5a7a086748d 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -187,32 +187,18 @@ struct spi_nor {
/**
* spi_nor_scan() - scan the SPI NOR
* @nor: the spi_nor structure
- * @id: the spi_device_id provided by the driver
+ * @name: the chip type name
* @mode: the read mode supported by the driver
*
* The drivers can use this fuction to scan the SPI NOR.
* In the scanning, it will try to get all the necessary information to
* fill the mtd_info{} and the spi_nor{}.
*
- * The board may assigns a spi_device_id with @id which be used to compared with
- * the spi_device_id detected by the scanning.
+ * The chip type name can be provided through the @name parameter.
*
* Return: 0 for success, others for failure.
*/
-int spi_nor_scan(struct spi_nor *nor, const struct spi_device_id *id,
- enum read_mode mode);
+int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode);
extern const struct spi_device_id spi_nor_ids[];
-/**
- * spi_nor_match_id() - find the spi_device_id by the name
- * @name: the name of the spi_device_id
- *
- * The drivers use this function to find the spi_device_id
- * specified by the @name.
- *
- * Return: returns the right spi_device_id pointer on success,
- * and returns NULL on failure.
- */
-const struct spi_device_id *spi_nor_match_id(char *name);
-
#endif
--
cgit v1.2.1
From 870c3151382c980590d4d609babf3b0243e7db93 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 17 Oct 2014 09:17:20 -0700
Subject: ipv6: introduce tcp_v6_iif()
Commit 971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line
misses") added a regression for SO_BINDTODEVICE on IPv6.
This is because we still use inet6_iif() which expects that IP6 control
block is still at the beginning of skb->cb[]
This patch adds tcp_v6_iif() helper and uses it where necessary.
Because __inet6_lookup_skb() is used by TCP and DCCP, we add an iif
parameter to it.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/inet6_hashtables.h | 5 +++--
include/net/tcp.h | 9 +++++++++
2 files changed, 12 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index ae0613544308..d1d272843b3b 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -80,7 +80,8 @@ static inline struct sock *__inet6_lookup(struct net *net,
static inline struct sock *__inet6_lookup_skb(struct inet_hashinfo *hashinfo,
struct sk_buff *skb,
const __be16 sport,
- const __be16 dport)
+ const __be16 dport,
+ int iif)
{
struct sock *sk = skb_steal_sock(skb);
@@ -90,7 +91,7 @@ static inline struct sock *__inet6_lookup_skb(struct inet_hashinfo *hashinfo,
return __inet6_lookup(dev_net(skb_dst(skb)->dev), hashinfo,
&ipv6_hdr(skb)->saddr, sport,
&ipv6_hdr(skb)->daddr, ntohs(dport),
- inet6_iif(skb));
+ iif);
}
struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 3a4bbbfdcf8d..c9766f89deba 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -729,6 +729,15 @@ struct tcp_skb_cb {
#define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0]))
+
+/* This is the variant of inet6_iif() that must be used by TCP,
+ * as TCP moves IP6CB into a different location in skb->cb[]
+ */
+static inline int tcp_v6_iif(const struct sk_buff *skb)
+{
+ return TCP_SKB_CB(skb)->header.h6.iif;
+}
+
/* Due to TSO, an SKB can be composed of multiple actual
* packets. To keep these tracked properly, we use this.
*/
--
cgit v1.2.1
From a28205437b41a2c1333c1599ce1e8f09af7b00d6 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 17 Oct 2014 16:02:13 -0700
Subject: net: dsa: add includes for ethtool and phy_fixed definitions
net/dsa/slave.c uses functions and structures declared in phy_fixed.h
but does not explicitely include it, while dsa.h needs structure
declarations for 'struct ethtool_wolinfo' and 'struct ethtool_eee', fix
those by including the correct header files.
Fixes: ec9436baedb6 ("net: dsa: allow drivers to do link adjustment")
Fixes: ce31b31c68e7 ("net: dsa: allow updating fixed PHY link information")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 58ad8c6492db..b76559293535 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -18,6 +18,7 @@
#include <linux/of.h>
#include <linux/phy.h>
#include <linux/phy_fixed.h>
+#include <linux/ethtool.h>
enum dsa_tag_protocol {
DSA_TAG_PROTO_NONE = 0,
--
cgit v1.2.1
From 815afe1785da727ee48cd8e63ac4a3ec6c7459b3 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 18 Oct 2014 08:34:37 -0700
Subject: tcp: fix build error if IPv6 is not enabled
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
$ make M=net/ipv4
CC net/ipv4/route.o
In file included from net/ipv4/route.c:102:0:
include/net/tcp.h: In function ‘tcp_v6_iif’:
include/net/tcp.h:738:32: error: ‘union <anonymous>’ has no member named ‘h6’
return TCP_SKB_CB(skb)->header.h6.iif;
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 870c3151382c ("ipv6: introduce tcp_v6_iif()")
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index c9766f89deba..4062b4f0d121 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -730,6 +730,7 @@ struct tcp_skb_cb {
#define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0]))
+#if IS_ENABLED(CONFIG_IPV6)
/* This is the variant of inet6_iif() that must be used by TCP,
* as TCP moves IP6CB into a different location in skb->cb[]
*/
@@ -737,6 +738,7 @@ static inline int tcp_v6_iif(const struct sk_buff *skb)
{
return TCP_SKB_CB(skb)->header.h6.iif;
}
+#endif
/* Due to TSO, an SKB can be composed of multiple actual
* packets. To keep these tracked properly, we use this.
--
cgit v1.2.1
From 68ab61084de3220e2fb0a698c890ba91decddc85 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 15 Oct 2014 14:06:25 +0200
Subject: ALSA: seq: bind seq driver automatically
Currently the sequencer module binding is performed independently from
the card module itself. The reason behind it is to keep the sequencer
stuff optional and allow the system running without it (e.g. for using
PCM or rawmidi only). This works in most cases, but a remaining
problem is that the binding isn't done automatically when a new driver
module is probed. Typically this becomes visible when a hotplug
driver like usb audio is used.
This patch tries to address this and other potential issues. First,
the seq-binder (seq_device.c) tries to load a missing driver module at
creating a new device object. This is done asynchronously in a workq
for avoiding the deadlock (modprobe call in module init path).
This action, however, should be enabled only when the sequencer stuff
was already initialized, i.e. snd-seq module was already loaded. For
that, a new function, snd_seq_autoload_init() is introduced here; this
clears the blocking of autoloading, and also tries to load all pending
driver modules.
Reported-by: Adam Goode <agoode@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/seq_kernel.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h
index 2398521f0998..eea5400fe373 100644
--- a/include/sound/seq_kernel.h
+++ b/include/sound/seq_kernel.h
@@ -108,9 +108,13 @@ int snd_seq_event_port_detach(int client, int port);
#ifdef CONFIG_MODULES
void snd_seq_autoload_lock(void);
void snd_seq_autoload_unlock(void);
+void snd_seq_autoload_init(void);
+#define snd_seq_autoload_exit() snd_seq_autoload_lock()
#else
#define snd_seq_autoload_lock()
#define snd_seq_autoload_unlock()
+#define snd_seq_autoload_init()
+#define snd_seq_autoload_exit()
#endif
#endif /* __SOUND_SEQ_KERNEL_H */
--
cgit v1.2.1
From aa281ac631008b9c18c405c8880007789f659c7d Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <ooo@electrozaur.com>
Date: Sun, 19 Oct 2014 19:38:58 +0300
Subject: Boaz Harrosh - Fix broken email address
I no longer have access to the Panasas email.
So change to an email that can always reach me.
Signed-off-by: Boaz Harrosh <ooo@electrozaur.com>
---
include/linux/pnfs_osd_xdr.h | 2 +-
include/scsi/osd_initiator.h | 2 +-
include/scsi/osd_ore.h | 2 +-
include/scsi/osd_protocol.h | 4 ++--
include/scsi/osd_sec.h | 2 +-
include/scsi/osd_sense.h | 2 +-
include/scsi/osd_types.h | 2 +-
7 files changed, 8 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/pnfs_osd_xdr.h b/include/linux/pnfs_osd_xdr.h
index fe25876c1a5d..17d7d0d20eca 100644
--- a/include/linux/pnfs_osd_xdr.h
+++ b/include/linux/pnfs_osd_xdr.h
@@ -5,7 +5,7 @@
* All rights reserved.
*
* Benny Halevy <bhalevy@panasas.com>
- * Boaz Harrosh <bharrosh@panasas.com>
+ * Boaz Harrosh <ooo@electrozaur.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index b2e85fdd2ae0..a09cca829082 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -4,7 +4,7 @@
* Copyright (C) 2008 Panasas Inc. All rights reserved.
*
* Authors:
- * Boaz Harrosh <bharrosh@panasas.com>
+ * Boaz Harrosh <ooo@electrozaur.com>
* Benny Halevy <bhalevy@panasas.com>
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/scsi/osd_ore.h b/include/scsi/osd_ore.h
index 6ca3265a4dca..7a8d2cd30328 100644
--- a/include/scsi/osd_ore.h
+++ b/include/scsi/osd_ore.h
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2011
- * Boaz Harrosh <bharrosh@panasas.com>
+ * Boaz Harrosh <ooo@electrozaur.com>
*
* Public Declarations of the ORE API
*
diff --git a/include/scsi/osd_protocol.h b/include/scsi/osd_protocol.h
index a2594afe05c7..e0ca835e7bf7 100644
--- a/include/scsi/osd_protocol.h
+++ b/include/scsi/osd_protocol.h
@@ -4,7 +4,7 @@
* Copyright (C) 2008 Panasas Inc. All rights reserved.
*
* Authors:
- * Boaz Harrosh <bharrosh@panasas.com>
+ * Boaz Harrosh <ooo@electrozaur.com>
* Benny Halevy <bhalevy@panasas.com>
*
* This program is free software; you can redistribute it and/or modify
@@ -496,7 +496,7 @@ struct osd_timestamp {
*/
struct osd_key_identifier {
- u8 id[7]; /* if you know why 7 please email bharrosh@panasas.com */
+ u8 id[7]; /* if you know why 7 please email ooo@electrozaur.com */
} __packed;
/* for osd_capability.format */
diff --git a/include/scsi/osd_sec.h b/include/scsi/osd_sec.h
index f96151c9c9e8..7abeb0f0db30 100644
--- a/include/scsi/osd_sec.h
+++ b/include/scsi/osd_sec.h
@@ -4,7 +4,7 @@
* Copyright (C) 2008 Panasas Inc. All rights reserved.
*
* Authors:
- * Boaz Harrosh <bharrosh@panasas.com>
+ * Boaz Harrosh <ooo@electrozaur.com>
* Benny Halevy <bhalevy@panasas.com>
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/scsi/osd_sense.h b/include/scsi/osd_sense.h
index 91db543a5502..d52aa93a0b2d 100644
--- a/include/scsi/osd_sense.h
+++ b/include/scsi/osd_sense.h
@@ -4,7 +4,7 @@
* Copyright (C) 2008 Panasas Inc. All rights reserved.
*
* Authors:
- * Boaz Harrosh <bharrosh@panasas.com>
+ * Boaz Harrosh <ooo@electrozaur.com>
* Benny Halevy <bhalevy@panasas.com>
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/scsi/osd_types.h b/include/scsi/osd_types.h
index bd0be7ed4bcf..48e8a165e136 100644
--- a/include/scsi/osd_types.h
+++ b/include/scsi/osd_types.h
@@ -4,7 +4,7 @@
* Copyright (C) 2008 Panasas Inc. All rights reserved.
*
* Authors:
- * Boaz Harrosh <bharrosh@panasas.com>
+ * Boaz Harrosh <ooo@electrozaur.com>
* Benny Halevy <bhalevy@panasas.com>
*
* This program is free software; you can redistribute it and/or modify
--
cgit v1.2.1
From 777783e0abae3cab7555bb182776f9ffaa35631a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 16 Oct 2014 14:40:38 +0200
Subject: staging: android: binder: move to the "real" part of the kernel
The Android binder code has been "stable" for many years now. No matter
what comes in the future, we are going to have to support this API, so
might as well move it to the "real" part of the kernel as there's no
real work that needs to be done to the existing code.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/android/Kbuild | 2 +
include/uapi/linux/android/binder.h | 351 ++++++++++++++++++++++++++++++++++++
3 files changed, 354 insertions(+)
create mode 100644 include/uapi/linux/android/Kbuild
create mode 100644 include/uapi/linux/android/binder.h
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 6cad97485bad..5f17fa7bc153 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -1,4 +1,5 @@
# UAPI Header export list
+header-y += android/
header-y += byteorder/
header-y += can/
header-y += caif/
diff --git a/include/uapi/linux/android/Kbuild b/include/uapi/linux/android/Kbuild
new file mode 100644
index 000000000000..ca011eec252a
--- /dev/null
+++ b/include/uapi/linux/android/Kbuild
@@ -0,0 +1,2 @@
+# UAPI Header export list
+header-y += binder.h
diff --git a/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h
new file mode 100644
index 000000000000..dba4cef3a8d3
--- /dev/null
+++ b/include/uapi/linux/android/binder.h
@@ -0,0 +1,351 @@
+/*
+ * Copyright (C) 2008 Google, Inc.
+ *
+ * Based on, but no longer compatible with, the original
+ * OpenBinder.org binder driver interface, which is:
+ *
+ * Copyright (c) 2005 Palmsource, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _UAPI_LINUX_BINDER_H
+#define _UAPI_LINUX_BINDER_H
+
+#include <linux/ioctl.h>
+
+#define B_PACK_CHARS(c1, c2, c3, c4) \
+ ((((c1)<<24)) | (((c2)<<16)) | (((c3)<<8)) | (c4))
+#define B_TYPE_LARGE 0x85
+
+enum {
+ BINDER_TYPE_BINDER = B_PACK_CHARS('s', 'b', '*', B_TYPE_LARGE),
+ BINDER_TYPE_WEAK_BINDER = B_PACK_CHARS('w', 'b', '*', B_TYPE_LARGE),
+ BINDER_TYPE_HANDLE = B_PACK_CHARS('s', 'h', '*', B_TYPE_LARGE),
+ BINDER_TYPE_WEAK_HANDLE = B_PACK_CHARS('w', 'h', '*', B_TYPE_LARGE),
+ BINDER_TYPE_FD = B_PACK_CHARS('f', 'd', '*', B_TYPE_LARGE),
+};
+
+enum {
+ FLAT_BINDER_FLAG_PRIORITY_MASK = 0xff,
+ FLAT_BINDER_FLAG_ACCEPTS_FDS = 0x100,
+};
+
+#ifdef BINDER_IPC_32BIT
+typedef __u32 binder_size_t;
+typedef __u32 binder_uintptr_t;
+#else
+typedef __u64 binder_size_t;
+typedef __u64 binder_uintptr_t;
+#endif
+
+/*
+ * This is the flattened representation of a Binder object for transfer
+ * between processes. The 'offsets' supplied as part of a binder transaction
+ * contains offsets into the data where these structures occur. The Binder
+ * driver takes care of re-writing the structure type and data as it moves
+ * between processes.
+ */
+struct flat_binder_object {
+ /* 8 bytes for large_flat_header. */
+ __u32 type;
+ __u32 flags;
+
+ /* 8 bytes of data. */
+ union {
+ binder_uintptr_t binder; /* local object */
+ __u32 handle; /* remote object */
+ };
+
+ /* extra data associated with local object */
+ binder_uintptr_t cookie;
+};
+
+/*
+ * On 64-bit platforms where user code may run in 32-bits the driver must
+ * translate the buffer (and local binder) addresses appropriately.
+ */
+
+struct binder_write_read {
+ binder_size_t write_size; /* bytes to write */
+ binder_size_t write_consumed; /* bytes consumed by driver */
+ binder_uintptr_t write_buffer;
+ binder_size_t read_size; /* bytes to read */
+ binder_size_t read_consumed; /* bytes consumed by driver */
+ binder_uintptr_t read_buffer;
+};
+
+/* Use with BINDER_VERSION, driver fills in fields. */
+struct binder_version {
+ /* driver protocol version -- increment with incompatible change */
+ __s32 protocol_version;
+};
+
+/* This is the current protocol version. */
+#ifdef BINDER_IPC_32BIT
+#define BINDER_CURRENT_PROTOCOL_VERSION 7
+#else
+#define BINDER_CURRENT_PROTOCOL_VERSION 8
+#endif
+
+#define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read)
+#define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, __s64)
+#define BINDER_SET_MAX_THREADS _IOW('b', 5, __u32)
+#define BINDER_SET_IDLE_PRIORITY _IOW('b', 6, __s32)
+#define BINDER_SET_CONTEXT_MGR _IOW('b', 7, __s32)
+#define BINDER_THREAD_EXIT _IOW('b', 8, __s32)
+#define BINDER_VERSION _IOWR('b', 9, struct binder_version)
+
+/*
+ * NOTE: Two special error codes you should check for when calling
+ * in to the driver are:
+ *
+ * EINTR -- The operation has been interupted. This should be
+ * handled by retrying the ioctl() until a different error code
+ * is returned.
+ *
+ * ECONNREFUSED -- The driver is no longer accepting operations
+ * from your process. That is, the process is being destroyed.
+ * You should handle this by exiting from your process. Note
+ * that once this error code is returned, all further calls to
+ * the driver from any thread will return this same code.
+ */
+
+enum transaction_flags {
+ TF_ONE_WAY = 0x01, /* this is a one-way call: async, no return */
+ TF_ROOT_OBJECT = 0x04, /* contents are the component's root object */
+ TF_STATUS_CODE = 0x08, /* contents are a 32-bit status code */
+ TF_ACCEPT_FDS = 0x10, /* allow replies with file descriptors */
+};
+
+struct binder_transaction_data {
+ /* The first two are only used for bcTRANSACTION and brTRANSACTION,
+ * identifying the target and contents of the transaction.
+ */
+ union {
+ /* target descriptor of command transaction */
+ __u32 handle;
+ /* target descriptor of return transaction */
+ binder_uintptr_t ptr;
+ } target;
+ binder_uintptr_t cookie; /* target object cookie */
+ __u32 code; /* transaction command */
+
+ /* General information about the transaction. */
+ __u32 flags;
+ pid_t sender_pid;
+ uid_t sender_euid;
+ binder_size_t data_size; /* number of bytes of data */
+ binder_size_t offsets_size; /* number of bytes of offsets */
+
+ /* If this transaction is inline, the data immediately
+ * follows here; otherwise, it ends with a pointer to
+ * the data buffer.
+ */
+ union {
+ struct {
+ /* transaction data */
+ binder_uintptr_t buffer;
+ /* offsets from buffer to flat_binder_object structs */
+ binder_uintptr_t offsets;
+ } ptr;
+ __u8 buf[8];
+ } data;
+};
+
+struct binder_ptr_cookie {
+ binder_uintptr_t ptr;
+ binder_uintptr_t cookie;
+};
+
+struct binder_handle_cookie {
+ __u32 handle;
+ binder_uintptr_t cookie;
+} __packed;
+
+struct binder_pri_desc {
+ __s32 priority;
+ __u32 desc;
+};
+
+struct binder_pri_ptr_cookie {
+ __s32 priority;
+ binder_uintptr_t ptr;
+ binder_uintptr_t cookie;
+};
+
+enum binder_driver_return_protocol {
+ BR_ERROR = _IOR('r', 0, __s32),
+ /*
+ * int: error code
+ */
+
+ BR_OK = _IO('r', 1),
+ /* No parameters! */
+
+ BR_TRANSACTION = _IOR('r', 2, struct binder_transaction_data),
+ BR_REPLY = _IOR('r', 3, struct binder_transaction_data),
+ /*
+ * binder_transaction_data: the received command.
+ */
+
+ BR_ACQUIRE_RESULT = _IOR('r', 4, __s32),
+ /*
+ * not currently supported
+ * int: 0 if the last bcATTEMPT_ACQUIRE was not successful.
+ * Else the remote object has acquired a primary reference.
+ */
+
+ BR_DEAD_REPLY = _IO('r', 5),
+ /*
+ * The target of the last transaction (either a bcTRANSACTION or
+ * a bcATTEMPT_ACQUIRE) is no longer with us. No parameters.
+ */
+
+ BR_TRANSACTION_COMPLETE = _IO('r', 6),
+ /*
+ * No parameters... always refers to the last transaction requested
+ * (including replies). Note that this will be sent even for
+ * asynchronous transactions.
+ */
+
+ BR_INCREFS = _IOR('r', 7, struct binder_ptr_cookie),
+ BR_ACQUIRE = _IOR('r', 8, struct binder_ptr_cookie),
+ BR_RELEASE = _IOR('r', 9, struct binder_ptr_cookie),
+ BR_DECREFS = _IOR('r', 10, struct binder_ptr_cookie),
+ /*
+ * void *: ptr to binder
+ * void *: cookie for binder
+ */
+
+ BR_ATTEMPT_ACQUIRE = _IOR('r', 11, struct binder_pri_ptr_cookie),
+ /*
+ * not currently supported
+ * int: priority
+ * void *: ptr to binder
+ * void *: cookie for binder
+ */
+
+ BR_NOOP = _IO('r', 12),
+ /*
+ * No parameters. Do nothing and examine the next command. It exists
+ * primarily so that we can replace it with a BR_SPAWN_LOOPER command.
+ */
+
+ BR_SPAWN_LOOPER = _IO('r', 13),
+ /*
+ * No parameters. The driver has determined that a process has no
+ * threads waiting to service incoming transactions. When a process
+ * receives this command, it must spawn a new service thread and
+ * register it via bcENTER_LOOPER.
+ */
+
+ BR_FINISHED = _IO('r', 14),
+ /*
+ * not currently supported
+ * stop threadpool thread
+ */
+
+ BR_DEAD_BINDER = _IOR('r', 15, binder_uintptr_t),
+ /*
+ * void *: cookie
+ */
+ BR_CLEAR_DEATH_NOTIFICATION_DONE = _IOR('r', 16, binder_uintptr_t),
+ /*
+ * void *: cookie
+ */
+
+ BR_FAILED_REPLY = _IO('r', 17),
+ /*
+ * The the last transaction (either a bcTRANSACTION or
+ * a bcATTEMPT_ACQUIRE) failed (e.g. out of memory). No parameters.
+ */
+};
+
+enum binder_driver_command_protocol {
+ BC_TRANSACTION = _IOW('c', 0, struct binder_transaction_data),
+ BC_REPLY = _IOW('c', 1, struct binder_transaction_data),
+ /*
+ * binder_transaction_data: the sent command.
+ */
+
+ BC_ACQUIRE_RESULT = _IOW('c', 2, __s32),
+ /*
+ * not currently supported
+ * int: 0 if the last BR_ATTEMPT_ACQUIRE was not successful.
+ * Else you have acquired a primary reference on the object.
+ */
+
+ BC_FREE_BUFFER = _IOW('c', 3, binder_uintptr_t),
+ /*
+ * void *: ptr to transaction data received on a read
+ */
+
+ BC_INCREFS = _IOW('c', 4, __u32),
+ BC_ACQUIRE = _IOW('c', 5, __u32),
+ BC_RELEASE = _IOW('c', 6, __u32),
+ BC_DECREFS = _IOW('c', 7, __u32),
+ /*
+ * int: descriptor
+ */
+
+ BC_INCREFS_DONE = _IOW('c', 8, struct binder_ptr_cookie),
+ BC_ACQUIRE_DONE = _IOW('c', 9, struct binder_ptr_cookie),
+ /*
+ * void *: ptr to binder
+ * void *: cookie for binder
+ */
+
+ BC_ATTEMPT_ACQUIRE = _IOW('c', 10, struct binder_pri_desc),
+ /*
+ * not currently supported
+ * int: priority
+ * int: descriptor
+ */
+
+ BC_REGISTER_LOOPER = _IO('c', 11),
+ /*
+ * No parameters.
+ * Register a spawned looper thread with the device.
+ */
+
+ BC_ENTER_LOOPER = _IO('c', 12),
+ BC_EXIT_LOOPER = _IO('c', 13),
+ /*
+ * No parameters.
+ * These two commands are sent as an application-level thread
+ * enters and exits the binder loop, respectively. They are
+ * used so the binder can have an accurate count of the number
+ * of looping threads it has available.
+ */
+
+ BC_REQUEST_DEATH_NOTIFICATION = _IOW('c', 14,
+ struct binder_handle_cookie),
+ /*
+ * int: handle
+ * void *: cookie
+ */
+
+ BC_CLEAR_DEATH_NOTIFICATION = _IOW('c', 15,
+ struct binder_handle_cookie),
+ /*
+ * int: handle
+ * void *: cookie
+ */
+
+ BC_DEAD_BINDER_DONE = _IOW('c', 16, binder_uintptr_t),
+ /*
+ * void *: cookie
+ */
+};
+
+#endif /* _UAPI_LINUX_BINDER_H */
+
--
cgit v1.2.1
From bc2d62a01b336983b8abd1cb2337f305352f29ef Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 16 Oct 2014 15:22:30 +0200
Subject: android: uapi: binder.h
add types.h to .h file to pass the checker scripts, and provide a proper
uapi .h file.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/android/binder.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h
index dba4cef3a8d3..41420e341e75 100644
--- a/include/uapi/linux/android/binder.h
+++ b/include/uapi/linux/android/binder.h
@@ -20,6 +20,7 @@
#ifndef _UAPI_LINUX_BINDER_H
#define _UAPI_LINUX_BINDER_H
+#include <linux/types.h>
#include <linux/ioctl.h>
#define B_PACK_CHARS(c1, c2, c3, c4) \
--
cgit v1.2.1
From 729de41baf63e2172b9d61de61bbd53f231095ca Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@opensource.altera.com>
Date: Fri, 10 Oct 2014 10:21:14 -0500
Subject: reset: add reset_control_status helper function
There are cases where a system will want to read a reset status bit before
doing any other toggling. Add a reset_control_status helper function to the
reset controller API.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
include/linux/reset-controller.h | 2 ++
include/linux/reset.h | 7 +++++++
2 files changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index 41a4695fde08..ce6b962ffed4 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -12,11 +12,13 @@ struct reset_controller_dev;
* things to reset the device
* @assert: manually assert the reset line, if supported
* @deassert: manually deassert the reset line, if supported
+ * @status: return the status of the reset line, if supported
*/
struct reset_control_ops {
int (*reset)(struct reset_controller_dev *rcdev, unsigned long id);
int (*assert)(struct reset_controller_dev *rcdev, unsigned long id);
int (*deassert)(struct reset_controller_dev *rcdev, unsigned long id);
+ int (*status)(struct reset_controller_dev *rcdev, unsigned long id);
};
struct module;
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 349f150ae12c..da5602bd77d7 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -10,6 +10,7 @@ struct reset_control;
int reset_control_reset(struct reset_control *rstc);
int reset_control_assert(struct reset_control *rstc);
int reset_control_deassert(struct reset_control *rstc);
+int reset_control_status(struct reset_control *rstc);
struct reset_control *reset_control_get(struct device *dev, const char *id);
void reset_control_put(struct reset_control *rstc);
@@ -57,6 +58,12 @@ static inline int reset_control_deassert(struct reset_control *rstc)
return 0;
}
+static inline int reset_control_status(struct reset_control *rstc)
+{
+ WARN_ON(1);
+ return 0;
+}
+
static inline void reset_control_put(struct reset_control *rstc)
{
WARN_ON(1);
--
cgit v1.2.1
From 40eb90a18e93fbd4fd0e6892b31241356c3c8e43 Mon Sep 17 00:00:00 2001
From: Anatol Pomozov <anatol.pomozov@gmail.com>
Date: Fri, 10 Oct 2014 20:46:36 -0700
Subject: ASoC: rt5677: Add option to configure gpio as
floating/pullup/pulldown
gpio_config is array of 6 elements that allows to set GPIO as
floating, pullup, pulldown.
Sponsored: Google ChromeOS
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/rt5677.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/sound/rt5677.h b/include/sound/rt5677.h
index 082670e3a353..a56b429a1dbc 100644
--- a/include/sound/rt5677.h
+++ b/include/sound/rt5677.h
@@ -27,6 +27,9 @@ struct rt5677_platform_data {
bool lout3_diff;
/* DMIC2 clock source selection */
enum rt5677_dmic2_clk dmic2_clk_pin;
+
+ /* configures GPIO, 0 - floating, 1 - pulldown, 2 - pullup */
+ u8 gpio_config[6];
};
#endif
--
cgit v1.2.1
From 76f439df50aba1838e06dd01e5f20dada7473f57 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Wed, 8 Oct 2014 15:47:05 +0200
Subject: regulator: Add ena_gpio_initialized to regulator_config
Most drivers do not set the ena_gpio field of struct regulator_config
before passing it to the regulator core. This is fine as long as the
gpio identifier that is passed is a positive integer. But the gpio
identifier 0 is also valid. So we are not able to decide wether we got a
real gpio identifier or not based on a 0 in ena_gpio.
To be able to decide if it is a valid gpio that got passed, this patch
adds a ena_gpio_initialized field that should be set if was initialized
with a correct value, either a gpio >= 0 or a negative error number. The
core then checks if ena_gpio or ena_gpio_initialized before handling it
as a gpio. This way we maintain backwards compatibility and fix the
behaviour for gpio number 0.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/regulator/driver.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index fc0ee0ce8325..28da08e4671f 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -301,6 +301,9 @@ struct regulator_desc {
* NULL).
* @regmap: regmap to use for core regmap helpers if dev_get_regulator() is
* insufficient.
+ * @ena_gpio_initialized: GPIO controlling regulator enable was properly
+ * initialized, meaning that >= 0 is a valid gpio
+ * identifier and < 0 is a non existent gpio.
* @ena_gpio: GPIO controlling regulator enable.
* @ena_gpio_invert: Sense for GPIO enable control.
* @ena_gpio_flags: Flags to use when calling gpio_request_one()
@@ -312,6 +315,7 @@ struct regulator_config {
struct device_node *of_node;
struct regmap *regmap;
+ bool ena_gpio_initialized;
int ena_gpio;
unsigned int ena_gpio_invert:1;
unsigned int ena_gpio_flags;
--
cgit v1.2.1
From 5356e0da49e61e0de29a5f61996be66e97425217 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Thu, 16 Oct 2014 18:48:50 +0200
Subject: regulator: max77802: Add header for operating modes
Add a header file for the max77802 constants that could be shared between
the regulator driver and Device Tree source files. Also, remove standby
and off opmodes since only normal and low power are valid operating modes.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/dt-bindings/regulator/maxim,max77802.h | 18 ++++++++++++++++++
include/linux/mfd/max77686.h | 7 -------
2 files changed, 18 insertions(+), 7 deletions(-)
create mode 100644 include/dt-bindings/regulator/maxim,max77802.h
(limited to 'include')
diff --git a/include/dt-bindings/regulator/maxim,max77802.h b/include/dt-bindings/regulator/maxim,max77802.h
new file mode 100644
index 000000000000..cf28631d7109
--- /dev/null
+++ b/include/dt-bindings/regulator/maxim,max77802.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2014 Google, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Device Tree binding constants for the Maxim 77802 PMIC regulators
+ */
+
+#ifndef _DT_BINDINGS_REGULATOR_MAXIM_MAX77802_H
+#define _DT_BINDINGS_REGULATOR_MAXIM_MAX77802_H
+
+/* Regulator operating modes */
+#define MAX77802_OPMODE_LP 1
+#define MAX77802_OPMODE_NORMAL 3
+
+#endif /* _DT_BINDINGS_REGULATOR_MAXIM_MAX77802_H */
diff --git a/include/linux/mfd/max77686.h b/include/linux/mfd/max77686.h
index 7e6dc4b2b795..553f7d09258a 100644
--- a/include/linux/mfd/max77686.h
+++ b/include/linux/mfd/max77686.h
@@ -131,13 +131,6 @@ enum max77686_opmode {
MAX77686_OPMODE_STANDBY,
};
-enum max77802_opmode {
- MAX77802_OPMODE_OFF,
- MAX77802_OPMODE_STANDBY,
- MAX77802_OPMODE_LP,
- MAX77802_OPMODE_NORMAL,
-};
-
struct max77686_opmode_data {
int id;
int mode;
--
cgit v1.2.1
From 4cbbdb51cc921f95978360fd7a0652d493dadc3e Mon Sep 17 00:00:00 2001
From: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Date: Thu, 18 Sep 2014 14:56:35 -0500
Subject: pci_ids: Add PCI device IDs for F15h M60h
Add F3, F4 device IDs to be used in amd_nb.c and amd64_edac.c
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: http://lkml.kernel.org/r/1411070195-10177-1-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
include/linux/pci_ids.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 1fa99a301817..97fb9f69aaed 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -522,6 +522,8 @@
#define PCI_DEVICE_ID_AMD_15H_M10H_F3 0x1403
#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F3 0x141d
#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F4 0x141e
+#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F3 0x1573
+#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F4 0x1574
#define PCI_DEVICE_ID_AMD_15H_NB_F0 0x1600
#define PCI_DEVICE_ID_AMD_15H_NB_F1 0x1601
#define PCI_DEVICE_ID_AMD_15H_NB_F2 0x1602
--
cgit v1.2.1
From 348fec70213835df18a587353b3bdc0481b37c6b Mon Sep 17 00:00:00 2001
From: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Date: Thu, 18 Sep 2014 14:56:58 -0500
Subject: EDAC: Add DDR3 LRDIMM entries to edac_mem_types
F15hM60h adds support for DDR4 and DDR3 LRDIMMs. Add them here.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/1411070218-10258-1-git-send-email-Aravind.Gopalakrishnan@amd.com
[ Boris: improve comments. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
---
include/linux/edac.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/edac.h b/include/linux/edac.h
index e1e68da6f35c..da3b72e95db3 100644
--- a/include/linux/edac.h
+++ b/include/linux/edac.h
@@ -194,7 +194,8 @@ static inline char *mc_event_error_type(const unsigned int err_type)
* @MEM_DDR3: DDR3 RAM
* @MEM_RDDR3: Registered DDR3 RAM
* This is a variant of the DDR3 memories.
- * @MEM_DDR4: DDR4 RAM
+ * @MEM_LRDDR3 Load-Reduced DDR3 memory.
+ * @MEM_DDR4: Unbuffered DDR4 RAM
* @MEM_RDDR4: Registered DDR4 RAM
* This is a variant of the DDR4 memories.
*/
@@ -216,6 +217,7 @@ enum mem_type {
MEM_XDR,
MEM_DDR3,
MEM_RDDR3,
+ MEM_LRDDR3,
MEM_DDR4,
MEM_RDDR4,
};
--
cgit v1.2.1
From 89c771e5a62b856f4705f189892c489190edaec1 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Fri, 10 Oct 2014 20:52:40 +0300
Subject: cfg80211: Convert del_station() callback to use a param struct
This makes it easier to add new parameters for the del_station calls
without having to modify all drivers that use this.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 3f3aaa06adb5..ebb69f671979 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -798,6 +798,17 @@ struct station_parameters {
bool opmode_notif_used;
};
+/**
+ * struct station_del_parameters - station deletion parameters
+ *
+ * Used to delete a station entry (or all stations).
+ *
+ * @mac: MAC address of the station to remove or NULL to remove all stations
+ */
+struct station_del_parameters {
+ const u8 *mac;
+};
+
/**
* enum cfg80211_station_type - the type of station being modified
* @CFG80211_STA_AP_CLIENT: client of an AP interface
@@ -2132,7 +2143,7 @@ struct cfg80211_qos_map {
* @stop_ap: Stop being an AP, including stopping beaconing.
*
* @add_station: Add a new station.
- * @del_station: Remove a station; @mac may be NULL to remove all stations.
+ * @del_station: Remove a station
* @change_station: Modify a given station. Note that flags changes are not much
* validated in cfg80211, in particular the auth/assoc/authorized flags
* might come to the driver in invalid combinations -- make sure to check
@@ -2378,7 +2389,7 @@ struct cfg80211_ops {
const u8 *mac,
struct station_parameters *params);
int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
- const u8 *mac);
+ struct station_del_parameters *params);
int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
const u8 *mac,
struct station_parameters *params);
--
cgit v1.2.1
From 988568669d171774b96e59fe35ef575df7f8cffd Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Mon, 20 Oct 2014 13:20:45 +0300
Subject: cfg80211: Specify frame and reason code for NL80211_CMD_DEL_STATION
The optional NL80211_ATTR_MGMT_SUBTYPE and NL80211_ATTR_REASON_CODE
attributes can now be included in NL80211_CMD_DEL_STATION to indicate to
the driver which frame (Deauthentication/Disassociation) and reason code
in that frame should be used to indicate removal to the specific
station. This is used by drivers that implement AP SME and generate
those frames internally.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 5 +++++
include/uapi/linux/nl80211.h | 6 +++++-
2 files changed, 10 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index ebb69f671979..ed896c0b5b8b 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -804,9 +804,14 @@ struct station_parameters {
* Used to delete a station entry (or all stations).
*
* @mac: MAC address of the station to remove or NULL to remove all stations
+ * @subtype: Management frame subtype to use for indicating removal
+ * (10 = Disassociation, 12 = Deauthentication)
+ * @reason_code: Reason code for the Disassociation/Deauthentication frame
*/
struct station_del_parameters {
const u8 *mac;
+ u8 subtype;
+ u16 reason_code;
};
/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 846071b0cde9..b553c48404d3 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -227,7 +227,11 @@
* the interface identified by %NL80211_ATTR_IFINDEX.
* @NL80211_CMD_DEL_STATION: Remove a station identified by %NL80211_ATTR_MAC
* or, if no MAC address given, all stations, on the interface identified
- * by %NL80211_ATTR_IFINDEX.
+ * by %NL80211_ATTR_IFINDEX. %NL80211_ATTR_MGMT_SUBTYPE and
+ * %NL80211_ATTR_REASON_CODE can optionally be used to specify which type
+ * of disconnection indication should be sent to the station
+ * (Deauthentication or Disassociation frame and reason code for that
+ * frame).
*
* @NL80211_CMD_GET_MPATH: Get mesh path attributes for mesh path to
* destination %NL80211_ATTR_MAC on the interface identified by
--
cgit v1.2.1
From 9439eb3ab9d1ece6e4ad7baaa4a7f534f9b9dab0 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 3 Sep 2013 10:44:00 +0100
Subject: asm-generic: io: implement relaxed accessor macros as conditional
wrappers
{read,write}{b,w,l,q}_relaxed are implemented by some architectures in
order to permit memory-mapped I/O accesses with weaker barrier semantics
than the non-relaxed variants.
This patch adds wrappers to asm-generic so that drivers can rely on the
relaxed accessors being available, even if they don't always provide
weaker ordering guarantees. Since some architectures both include
asm-generic/io.h and define some relaxed accessors, the definitions here
are conditional for the time being.
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/asm-generic/io.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index b8fdc57a7335..fc8dc0eb203c 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -53,18 +53,27 @@ static inline u32 __raw_readl(const volatile void __iomem *addr)
#endif
#define readb __raw_readb
+#ifndef readb_relaxed
+#define readb_relaxed readb
+#endif
#define readw readw
static inline u16 readw(const volatile void __iomem *addr)
{
return __le16_to_cpu(__raw_readw(addr));
}
+#ifndef readw_relaxed
+#define readw_relaxed readw
+#endif
#define readl readl
static inline u32 readl(const volatile void __iomem *addr)
{
return __le32_to_cpu(__raw_readl(addr));
}
+#ifndef readl_relaxed
+#define readl_relaxed readl
+#endif
#ifndef __raw_writeb
static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
@@ -88,8 +97,19 @@ static inline void __raw_writel(u32 b, volatile void __iomem *addr)
#endif
#define writeb __raw_writeb
+#ifndef writeb_relaxed
+#define writeb_relaxed writeb
+#endif
+
#define writew(b,addr) __raw_writew(__cpu_to_le16(b),addr)
+#ifndef writew_relaxed
+#define writew_relaxed writew
+#endif
+
#define writel(b,addr) __raw_writel(__cpu_to_le32(b),addr)
+#ifndef writel_relaxed
+#define writel_relaxed writel
+#endif
#ifdef CONFIG_64BIT
#ifndef __raw_readq
@@ -104,6 +124,9 @@ static inline u64 readq(const volatile void __iomem *addr)
{
return __le64_to_cpu(__raw_readq(addr));
}
+#ifndef readq_relaxed
+#define readq_relaxed readq
+#endif
#ifndef __raw_writeq
static inline void __raw_writeq(u64 b, volatile void __iomem *addr)
@@ -113,6 +136,9 @@ static inline void __raw_writeq(u64 b, volatile void __iomem *addr)
#endif
#define writeq(b, addr) __raw_writeq(__cpu_to_le64(b), addr)
+#ifndef writeq_relaxed
+#define writeq_relaxed writeq
+#endif
#endif /* CONFIG_64BIT */
#ifndef PCI_IOBASE
--
cgit v1.2.1
From 4846e3784585173f48e267b76f968bcb4a12d3b2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Tue, 9 Sep 2014 22:18:31 +0200
Subject: watchdog: simplify definitions of WATCHDOG_NOWAYOUT(_INIT_STATUS)?
Signed-off-by: Uwe Kleine-K=C3=B6nig <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
include/linux/watchdog.h | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index 2a3038ee17a3..395b70e0eccf 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -97,13 +97,8 @@ struct watchdog_device {
#define WDOG_UNREGISTERED 4 /* Has the device been unregistered */
};
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
-#define WATCHDOG_NOWAYOUT 1
-#define WATCHDOG_NOWAYOUT_INIT_STATUS (1 << WDOG_NO_WAY_OUT)
-#else
-#define WATCHDOG_NOWAYOUT 0
-#define WATCHDOG_NOWAYOUT_INIT_STATUS 0
-#endif
+#define WATCHDOG_NOWAYOUT IS_BUILTIN(CONFIG_WATCHDOG_NOWAYOUT)
+#define WATCHDOG_NOWAYOUT_INIT_STATUS (WATCHDOG_NOWAYOUT << WDOG_NO_WAY_OUT)
/* Use the following function to check whether or not the watchdog is active */
static inline bool watchdog_active(struct watchdog_device *wdd)
--
cgit v1.2.1
From f974008f07a62171a9dede08250c9a35c2b2b986 Mon Sep 17 00:00:00 2001
From: Olivier Gay <ogay@logitech.com>
Date: Sat, 18 Oct 2014 01:53:39 +0200
Subject: HID: add keyboard input assist hid usages
Add keyboard input assist controls usages from approved
hid usage table request HUTTR42:
http://www.usb.org/developers/hidpage/HUTRR42c.pdf
Signed-off-by: Olivier Gay <ogay@logitech.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/uapi/linux/input.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index 1874ebe9ac1e..a1d7e931ab72 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -739,6 +739,13 @@ struct input_keymap_entry {
#define KEY_BRIGHTNESS_MIN 0x250 /* Set Brightness to Minimum */
#define KEY_BRIGHTNESS_MAX 0x251 /* Set Brightness to Maximum */
+#define KEY_KBDINPUTASSIST_PREV 0x260
+#define KEY_KBDINPUTASSIST_NEXT 0x261
+#define KEY_KBDINPUTASSIST_PREVGROUP 0x262
+#define KEY_KBDINPUTASSIST_NEXTGROUP 0x263
+#define KEY_KBDINPUTASSIST_ACCEPT 0x264
+#define KEY_KBDINPUTASSIST_CANCEL 0x265
+
#define BTN_TRIGGER_HAPPY 0x2c0
#define BTN_TRIGGER_HAPPY1 0x2c0
#define BTN_TRIGGER_HAPPY2 0x2c1
--
cgit v1.2.1
From 5f8b35b6330db14d15fb385cc7b2ccca53dc323e Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Fri, 10 Oct 2014 10:39:24 +0800
Subject: ACPICA: Add string for _DDN method name.
The _DDN method will be used internally.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acnames.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index f97804bdf1ff..7461327e14e4 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -52,6 +52,7 @@
#define METHOD_NAME__CBA "_CBA"
#define METHOD_NAME__CID "_CID"
#define METHOD_NAME__CRS "_CRS"
+#define METHOD_NAME__DDN "_DDN"
#define METHOD_NAME__HID "_HID"
#define METHOD_NAME__INI "_INI"
#define METHOD_NAME__PLD "_PLD"
--
cgit v1.2.1
From a08f813e58169a8edd01e13d73f60d8561f3ecea Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 10 Oct 2014 10:39:57 +0800
Subject: ACPICA: Events: Reduce source code difference for the
ACPI_EVENT_FLAG_HANDLE support.
This patch is a partial linuxized result of the following ACPICA commit:
ACPICA commit: a73b66c6aa1846d055bb6390d9c9b9902f7d804d
Subject: Add "has handler" flag to event/gpe status interfaces.
This change adds a new flag, ACPI_EVENT_FLAGS_HAS_HANDLER to the
acpi_get_event_status and acpi_get_gpe_status external interfaces. It
is set if the event/gpe currently has a handler associated with it.
This commit back ports ACPI_EVENT_FLAG_HANDLE from Linux upstream to
ACPICA, the flag along with its support code currently can only be found
in the Linux upstream and is used by the ACPI sysfs GPE interfaces and
the ACPI bus scanning support.
Link: https://github.com/acpica/acpica/commit/a73b66c6
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/actypes.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index ac03ec81d342..857830d8989b 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -721,7 +721,7 @@ typedef u32 acpi_event_type;
* | | | +--- Enabled for wake?
* | | +----- Set?
* | +------- Has a handler?
- * +----------- <Reserved>
+ * +------------- <Reserved>
*/
typedef u32 acpi_event_status;
@@ -729,7 +729,7 @@ typedef u32 acpi_event_status;
#define ACPI_EVENT_FLAG_ENABLED (acpi_event_status) 0x01
#define ACPI_EVENT_FLAG_WAKE_ENABLED (acpi_event_status) 0x02
#define ACPI_EVENT_FLAG_SET (acpi_event_status) 0x04
-#define ACPI_EVENT_FLAG_HANDLE (acpi_event_status) 0x08
+#define ACPI_EVENT_FLAG_HANDLE (acpi_event_status) 0x08
/* Actions for acpi_set_gpe, acpi_gpe_wakeup, acpi_hw_low_set_gpe */
--
cgit v1.2.1
From 2f8572344e65296d13c1a771cacfea60916d91dc Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 10 Oct 2014 10:40:05 +0800
Subject: ACPICA: Events: Reduce source code difference for the
ACPI_EVENT_FLAG_HANDLE renaming.
This patch is partial linuxized result of the following ACPICA commit:
ACPICA commit: a73b66c6aa1846d055bb6390d9c9b9902f7d804d
Subject: Add "has handler" flag to event/gpe status interfaces.
This change adds a new flag, ACPI_EVENT_FLAGS_HAS_HANDLER to the
acpi_get_event_status and acpi_get_gpe_status external interfaces. It
is set if the event/gpe currently has a handler associated with it.
This patch contains the code to rename ACPI_EVENT_FLAG_HANDLE to
ACPI_EVENT_FLAG_HAS_HANDLER, and the corresponding updates of its usages.
Link: https://github.com/acpica/acpica/commit/a73b66c6
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/actypes.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 857830d8989b..7000e66f768e 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -729,7 +729,7 @@ typedef u32 acpi_event_status;
#define ACPI_EVENT_FLAG_ENABLED (acpi_event_status) 0x01
#define ACPI_EVENT_FLAG_WAKE_ENABLED (acpi_event_status) 0x02
#define ACPI_EVENT_FLAG_SET (acpi_event_status) 0x04
-#define ACPI_EVENT_FLAG_HANDLE (acpi_event_status) 0x08
+#define ACPI_EVENT_FLAG_HAS_HANDLER (acpi_event_status) 0x08
/* Actions for acpi_set_gpe, acpi_gpe_wakeup, acpi_hw_low_set_gpe */
--
cgit v1.2.1
From 9fc3d1d09cf7f81d5775712dc64c3db4862ee59d Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Fri, 10 Oct 2014 10:40:28 +0800
Subject: ACPICA: Update version to 20140926.
Version 20140926.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpixf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 9fc1d71c82bc..ab2acf629a64 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20140828
+#define ACPI_CA_VERSION 0x20140926
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
--
cgit v1.2.1
From 51315cdfa0521fff3059cec5fb8ffecc7f37cba7 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Sun, 19 Oct 2014 11:30:27 +0200
Subject: cpufreq: allow driver-specific data
This commit extends the cpufreq_driver structure with an additional
'void *driver_data' field that can be filled by the ->probe() function
of a cpufreq driver to pass additional custom information to the
driver itself.
A new function called cpufreq_get_driver_data() is added to allow a
cpufreq driver to retrieve those driver data, since they are typically
needed from a cpufreq_policy->init() callback, which does not have
access to the cpufreq_driver structure. This function call is similar
to the existing cpufreq_get_current_driver() function call.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/cpufreq.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 138336b6bb04..503b085b7832 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -219,6 +219,7 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
struct cpufreq_driver {
char name[CPUFREQ_NAME_LEN];
u8 flags;
+ void *driver_data;
/* needed by all drivers */
int (*init) (struct cpufreq_policy *policy);
@@ -312,6 +313,7 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data);
int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
const char *cpufreq_get_current_driver(void);
+void *cpufreq_get_driver_data(void);
static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
unsigned int min, unsigned int max)
--
cgit v1.2.1
From 34e5a5273d6aa0ee8836bd5d6111b135ffae6931 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Sun, 19 Oct 2014 11:30:28 +0200
Subject: cpufreq: cpufreq-dt: extend with platform_data
This commit extends the cpufreq-dt driver to take a platform_data
structure. This structure is for now used to tell the cpufreq-dt
driver the layout of the clocks on the platform, i.e whether all CPUs
share the same clock or whether each CPU has a separate clock.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/cpufreq-dt.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 include/linux/cpufreq-dt.h
(limited to 'include')
diff --git a/include/linux/cpufreq-dt.h b/include/linux/cpufreq-dt.h
new file mode 100644
index 000000000000..0414009e2c30
--- /dev/null
+++ b/include/linux/cpufreq-dt.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2014 Marvell
+ * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __CPUFREQ_DT_H__
+#define __CPUFREQ_DT_H__
+
+struct cpufreq_dt_platform_data {
+ /*
+ * True when each CPU has its own clock to control its
+ * frequency, false when all CPUs are controlled by a single
+ * clock.
+ */
+ bool independent_clocks;
+};
+
+#endif /* __CPUFREQ_DT_H__ */
--
cgit v1.2.1
From 32197aab0425dbecc38462a91bc5c8acf70b2036 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Mon, 20 Oct 2014 23:53:13 +0900
Subject: gpu:drm: Fix typo in Documentation/DocBook/drm.xml
This patch fix spelling typos found in drm.xml.
It is because the file is generated from comments in
source codes, I have to fix the typos within source files.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_dp_mst_helper.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 9b446ada2532..3ecfcc143bdd 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -28,7 +28,7 @@
struct drm_dp_mst_branch;
/**
- * struct drm_dp_vcpi - Virtual Channel Payload Identifer
+ * struct drm_dp_vcpi - Virtual Channel Payload Identifier
* @vcpi: Virtual channel ID.
* @pbn: Payload Bandwidth Number for this channel
* @aligned_pbn: PBN aligned with slot size
--
cgit v1.2.1
From 34b48db66e08ca1c1bc07cf305d672ac940268dc Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 6 Sep 2014 16:08:05 -0700
Subject: block: remove artifical max_hw_sectors cap
Set max_sectors to the value the drivers provides as hardware limit by
default. Linux had proper I/O throttling for a long time and doesn't
rely on a artifically small maximum I/O size anymore. By not limiting
the I/O size by default we remove an annoying tuning step required for
most Linux installation.
Note that both the user, and if absolutely required the driver can still
impose a limit for FS requests below max_hw_sectors_kb.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0207a78a8d82..74d14dba6fb7 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1186,7 +1186,6 @@ extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm);
enum blk_default_limits {
BLK_MAX_SEGMENTS = 128,
BLK_SAFE_MAX_SECTORS = 255,
- BLK_DEF_MAX_SECTORS = 1024,
BLK_MAX_SEGMENT_SIZE = 65536,
BLK_SEG_BOUNDARY_MASK = 0xFFFFFFFFUL,
};
--
cgit v1.2.1
From a5b7616c55e188fe3d6ef686bef402d4703ecb62 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Tue, 30 Sep 2014 03:14:55 +0100
Subject: mtd: m25p80,spi-nor: Fix module aliases for m25p80
m25p80's device ID table is now spi_nor_ids, defined in spi-nor. The
MODULE_DEVICE_TABLE() macro doesn't work with extern definitions, but
its use was also removed at the same time. Now if m25p80 is built as
a module it doesn't get the necessary aliases to be loaded
automatically.
A clean solution to this will involve defining the list of device
IDs in spi-nor.h and removing struct spi_device_id from the spi-nor
API, but this is quite a large change.
As a quick fix suitable for stable, copy the device IDs back into
m25p80.
Fixes: 03e296f613af ("mtd: m25p80: use the SPI nor framework")
Cc: <stable@vger.kernel.org> # 3.16.x: 32f1b7c8352f: mtd: move support for struct flash_platform_data into m25p80
Cc: <stable@vger.kernel.org> # 3.16.x: 90e55b3812a1: mtd: m25p80: get rid of spi_get_device_id
Cc: <stable@vger.kernel.org> # 3.16.x: 70f3ce0510af: mtd: spi-nor: make spi_nor_scan() take a chip type name, not spi_device_id
Cc: <stable@vger.kernel.org> # 3.16.x
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/spi-nor.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index a5a7a086748d..046a0a2e4c4e 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -199,6 +199,5 @@ struct spi_nor {
* Return: 0 for success, others for failure.
*/
int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode);
-extern const struct spi_device_id spi_nor_ids[];
#endif
--
cgit v1.2.1
From 5695be142e203167e3cb515ef86a88424f3524eb Mon Sep 17 00:00:00 2001
From: Michal Hocko <mhocko@suse.cz>
Date: Mon, 20 Oct 2014 18:12:32 +0200
Subject: OOM, PM: OOM killed task shouldn't escape PM suspend
PM freezer relies on having all tasks frozen by the time devices are
getting frozen so that no task will touch them while they are getting
frozen. But OOM killer is allowed to kill an already frozen task in
order to handle OOM situtation. In order to protect from late wake ups
OOM killer is disabled after all tasks are frozen. This, however, still
keeps a window open when a killed task didn't manage to die by the time
freeze_processes finishes.
Reduce the race window by checking all tasks after OOM killer has been
disabled. This is still not race free completely unfortunately because
oom_killer_disable cannot stop an already ongoing OOM killer so a task
might still wake up from the fridge and get killed without
freeze_processes noticing. Full synchronization of OOM and freezer is,
however, too heavy weight for this highly unlikely case.
Introduce and check oom_kills counter which gets incremented early when
the allocator enters __alloc_pages_may_oom path and only check all the
tasks if the counter changes during the freezing attempt. The counter
is updated so early to reduce the race window since allocator checked
oom_killer_disabled which is set by PM-freezing code. A false positive
will push the PM-freezer into a slow path but that is not a big deal.
Changes since v1
- push the re-check loop out of freeze_processes into
check_frozen_processes and invert the condition to make the code more
readable as per Rafael
Fixes: f660daac474c6f (oom: thaw threads if oom killed thread is frozen before deferring)
Cc: 3.2+ <stable@vger.kernel.org> # 3.2+
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/oom.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/oom.h b/include/linux/oom.h
index 647395a1a550..e8d6e1058723 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -50,6 +50,9 @@ static inline bool oom_task_origin(const struct task_struct *p)
extern unsigned long oom_badness(struct task_struct *p,
struct mem_cgroup *memcg, const nodemask_t *nodemask,
unsigned long totalpages);
+
+extern int oom_kills_count(void);
+extern void note_oom_kill(void);
extern void oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
unsigned int points, unsigned long totalpages,
struct mem_cgroup *memcg, nodemask_t *nodemask,
--
cgit v1.2.1
From e66fcf722a74786c500957608f3230e843960b42 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Tue, 30 Sep 2014 03:15:04 +0100
Subject: spi-nor: Remove spi_nor::read_id operation
There is currently no useful way to override the default
implementation of this operation. The returned struct spi_device_id
must have a pointer to struct flash_info in its private data, but this
structure is defined inside spi-nor.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/spi-nor.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 046a0a2e4c4e..2f27713b3ae1 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -139,8 +139,6 @@ enum spi_nor_ops {
* @write_xfer: [OPTIONAL] the writefundamental primitive
* @read_reg: [DRIVER-SPECIFIC] read out the register
* @write_reg: [DRIVER-SPECIFIC] write data to the register
- * @read_id: [REPLACEABLE] read out the ID data, and find
- * the proper spi_device_id
* @wait_till_ready: [REPLACEABLE] wait till the NOR becomes ready
* @read: [DRIVER-SPECIFIC] read data from the SPI NOR
* @write: [DRIVER-SPECIFIC] write data to the SPI NOR
@@ -172,7 +170,6 @@ struct spi_nor {
int (*read_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len);
int (*write_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len,
int write_enable);
- const struct spi_device_id *(*read_id)(struct spi_nor *nor);
int (*wait_till_ready)(struct spi_nor *nor);
int (*read)(struct spi_nor *nor, loff_t from,
--
cgit v1.2.1
From 723e73acd16d2ea08cdbd8b449b7bc69389b94d4 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 22 Oct 2014 09:25:06 +0200
Subject: cfg80211: make WMM TSPEC support flag an nl80211 feature flag
During the review of the corresponding wpa_supplicant patches we
noticed that the only way for it to detect that this functionality
is supported currently is to check for the command support. This
can be misleading though, as the command was also designed to, in
the future, support pure 802.11 TSPECs.
Expose the WMM-TSPEC feature flag to nl80211 so later we can also
expose an 802.11-TSPEC feature flag (if needed) to differentiate
the two cases.
Note: this change isn't needed in 3.18 as there's no driver there
yet that supports the functionality at all.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 6 +-----
include/uapi/linux/nl80211.h | 5 +++++
2 files changed, 6 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index ed896c0b5b8b..77aa805d7e7c 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2646,13 +2646,9 @@ struct cfg80211_ops {
* @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
* @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
* beaconing mode (AP, IBSS, Mesh, ...).
- * @WIPHY_FLAG_SUPPORTS_WMM_ADMISSION: the device supports setting up WMM
- * TSPEC sessions (TID aka TSID 0-7) with the NL80211_CMD_ADD_TX_TS
- * command. Standard IEEE 802.11 TSPEC setup is not yet supported, it
- * needs to be able to handle Block-Ack agreements and other things.
*/
enum wiphy_flags {
- WIPHY_FLAG_SUPPORTS_WMM_ADMISSION = BIT(0),
+ /* use hole at 0 */
/* use hole at 1 */
/* use hole at 2 */
WIPHY_FLAG_NETNS_OK = BIT(3),
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index b553c48404d3..be1d5def304d 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4052,6 +4052,10 @@ enum nl80211_ap_sme_features {
* multiplexing powersave, ie. can turn off all but one chain
* and then wake the rest up as required after, for example,
* rts/cts handshake.
+ * @NL80211_FEATURE_SUPPORTS_WMM_ADMISSION: the device supports setting up WMM
+ * TSPEC sessions (TID aka TSID 0-7) with the %NL80211_CMD_ADD_TX_TS
+ * command. Standard IEEE 802.11 TSPEC setup is not yet supported, it
+ * needs to be able to handle Block-Ack agreements and other things.
*/
enum nl80211_feature_flags {
NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
@@ -4080,6 +4084,7 @@ enum nl80211_feature_flags {
NL80211_FEATURE_ACKTO_ESTIMATION = 1 << 23,
NL80211_FEATURE_STATIC_SMPS = 1 << 24,
NL80211_FEATURE_DYNAMIC_SMPS = 1 << 25,
+ NL80211_FEATURE_SUPPORTS_WMM_ADMISSION = 1 << 26,
};
/**
--
cgit v1.2.1
From 02219b3abca59fca81711bfe7ee78df7abad97ce Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 7 Oct 2014 10:38:50 +0300
Subject: mac80211: add WMM admission control support
Use the currently existing APIs between mac80211 and the low
level driver to implement WMM admission control.
The low level driver needs to report the media time used by
each transmitted packet in ieee80211_tx_status. Based on that
information, mac80211 will modify the QoS parameters of the
admission controlled Access Category when the limit is
reached. Once the original QoS parameters can be restored,
mac80211 will do so.
One issue with this approach is that management frames will
also erroneously be downgraded, but the upside is that the
implementation is simple. In the future, it can be extended
to driver- or device-based implementations that are better.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9bb2fc73aeaa..9dc5e7606322 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -739,7 +739,8 @@ struct ieee80211_tx_info {
u8 ampdu_ack_len;
u8 ampdu_len;
u8 antenna;
- void *status_driver_data[21 / sizeof(void *)];
+ u16 tx_time;
+ void *status_driver_data[19 / sizeof(void *)];
} status;
struct {
struct ieee80211_tx_rate driver_rates[
--
cgit v1.2.1
From 5e3363ad1b7b2e1f197a3f56b01e21cb155ad454 Mon Sep 17 00:00:00 2001
From: Oder Chiou <oder_chiou@realtek.com>
Date: Thu, 16 Oct 2014 11:24:26 -0700
Subject: ASoC: rt5677: add GPIO IRQ support
This allows to enable Mic Jack detection feature
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Modified-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/rt5677.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/sound/rt5677.h b/include/sound/rt5677.h
index a56b429a1dbc..d9eb7d861cd0 100644
--- a/include/sound/rt5677.h
+++ b/include/sound/rt5677.h
@@ -30,6 +30,13 @@ struct rt5677_platform_data {
/* configures GPIO, 0 - floating, 1 - pulldown, 2 - pullup */
u8 gpio_config[6];
+
+ /* jd1 can select 0 ~ 3 as OFF, GPIO1, GPIO2 and GPIO3 respectively */
+ unsigned int jd1_gpio;
+ /* jd2 and jd3 can select 0 ~ 3 as
+ OFF, GPIO4, GPIO5 and GPIO6 respectively */
+ unsigned int jd2_gpio;
+ unsigned int jd3_gpio;
};
#endif
--
cgit v1.2.1
From 130897ac5ac03adb4604d27497c378c64c7b22dd Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 20 Oct 2014 19:36:39 +0200
Subject: ASoC: dapm: Remove path 'walked' flag
The 'walked' flag was used to avoid walking paths that have already been
walked. But since we started caching the number of inputs and outputs of a
path we never actually get into a situation where we try to walk a path that
has the 'walked' flag set.
There are two cases in which we can end up walking a path multiple times
within a single run of is_connected_output_ep() or is_connected_input_ep().
1) If a path splits up and rejoins later:
.--> C ---v
A -> B E --> F
'--> D ---^
When walking from A to F we'll end up at E twice, once via C and once via D.
But since we do a depth first search we'll fully discover the path and
initialize the number of outputs/inputs of the widget the first time we get
there. The second time we get there we'll use the cached value and not
bother to check any of the paths again. So we'll never see a path where
'walked' is set in this case.
2) If there is a circle:
A --> B <-- C <-.--> F
'--> D ---'
When walking from A to F we'll end up twice at B. But since there is a
circle the 'walking' flag will still be set on B once we get there the
second time. This means we won't look at any of it's outgoing paths. So in
this case we won't ever see a path where 'walked' is set either.
So it is safe to remove the flag. This on one hand means we remove some
always true checks from one of the hottest paths of the DAPM algorithm and
on the other hand means we do not have to do the tedious clearing of the
flag after checking the number inputs or outputs of a widget.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dapm.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 3a4d7da67b8d..ebb93f29e4f3 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -508,7 +508,6 @@ struct snd_soc_dapm_path {
/* status */
u32 connect:1; /* source and sink widgets are connected */
- u32 walked:1; /* path has been walked */
u32 walking:1; /* path is in the process of being walked */
u32 weak:1; /* path ignored for power management */
--
cgit v1.2.1
From a4b4e0461ec5532ad498f0dd0e68993ad79bec2b Mon Sep 17 00:00:00 2001
From: Romain Perier <romain.perier@gmail.com>
Date: Tue, 14 Oct 2014 06:31:09 +0000
Subject: of: Add standard property for poweroff capability
Several drivers create their own devicetree property when they register
poweroff capabilities. This is for example the case for mfd, regulator
or power drivers which define "vendor,system-power-controller" property.
This patch adds support for a standard property "poweroff-source"
which marks the device as able to shutdown the system.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/of.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 6545e7aec7bb..27b3ba1e9e59 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -866,4 +866,15 @@ static inline int of_changeset_update_property(struct of_changeset *ocs,
/* CONFIG_OF_RESOLVE api */
extern int of_resolve_phandles(struct device_node *tree);
+/**
+ * of_system_has_poweroff_source - Tells if poweroff-source is found for device_node
+ * @np: Pointer to the given device_node
+ *
+ * return true if present false otherwise
+ */
+static inline bool of_system_has_poweroff_source(const struct device_node *np)
+{
+ return of_property_read_bool(np, "poweroff-source");
+}
+
#endif /* _LINUX_OF_H */
--
cgit v1.2.1
From 9e8beeb79ded25c5c1986f80fb8a7f6815345d5a Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 13 Oct 2014 18:58:48 -0600
Subject: audit: Remove "weak" from audit_classify_compat_syscall() declaration
There's only one audit_classify_compat_syscall() definition, so it doesn't
need to be weak.
Remove the "weak" attribute from the audit_classify_compat_syscall()
declaration.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Richard Guy Briggs <rgb@redhat.com>
CC: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
include/linux/audit.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 36dffeccebdb..e58fe7df8b9c 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -90,7 +90,7 @@ extern unsigned compat_dir_class[];
extern unsigned compat_chattr_class[];
extern unsigned compat_signal_class[];
-extern int __weak audit_classify_compat_syscall(int abi, unsigned syscall);
+extern int audit_classify_compat_syscall(int abi, unsigned syscall);
/* audit_names->type values */
#define AUDIT_TYPE_UNKNOWN 0 /* we don't know yet */
--
cgit v1.2.1
From 96a2adbc6f501996418da9f7afe39bf0e4d006a9 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 13 Oct 2014 18:59:09 -0600
Subject: clocksource: Remove "weak" from clocksource_default_clock()
declaration
kernel/time/jiffies.c provides a default clocksource_default_clock()
definition explicitly marked "weak". arch/s390 provides its own definition
intended to override the default, but the "weak" attribute on the
declaration applied to the s390 definition as well, so the linker chose one
based on link order (see 10629d711ed7 ("PCI: Remove __weak annotation from
pcibios_get_phb_of_node decl")).
Remove the "weak" attribute from the clocksource_default_clock()
declaration so we always prefer a non-weak definition over the weak one,
independent of link order.
Fixes: f1b82746c1e9 ("clocksource: Cleanup clocksource selection")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: John Stultz <john.stultz@linaro.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
CC: Daniel Lezcano <daniel.lezcano@linaro.org>
CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
include/linux/clocksource.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 653f0e2b6ca9..abcafaa20b86 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -287,7 +287,7 @@ extern struct clocksource* clocksource_get_next(void);
extern void clocksource_change_rating(struct clocksource *cs, int rating);
extern void clocksource_suspend(void);
extern void clocksource_resume(void);
-extern struct clocksource * __init __weak clocksource_default_clock(void);
+extern struct clocksource * __init clocksource_default_clock(void);
extern void clocksource_mark_unstable(struct clocksource *cs);
extern u64
--
cgit v1.2.1
From 5ab03ac5aaa1f032e071f1b3dc433b7839359c03 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 13 Oct 2014 18:59:41 -0600
Subject: vmcore: Remove "weak" from function declarations
For the following functions:
elfcorehdr_alloc()
elfcorehdr_free()
elfcorehdr_read()
elfcorehdr_read_notes()
remap_oldmem_pfn_range()
fs/proc/vmcore.c provides default definitions explicitly marked "weak".
arch/s390 provides its own definitions intended to override the default
ones, but the "weak" attribute on the declarations applied to the s390
definitions as well, so the linker chose one based on link order (see
10629d711ed7 ("PCI: Remove __weak annotation from pcibios_get_phb_of_node
decl")).
Remove the "weak" attribute from the declarations so we always prefer a
non-weak definition over the weak one, independent of link order.
Fixes: be8a8d069e50 ("vmcore: introduce ELF header in new memory feature")
Fixes: 9cb218131de1 ("vmcore: introduce remap_oldmem_pfn_range()")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
CC: Michael Holzheu <holzheu@linux.vnet.ibm.com>
---
include/linux/crash_dump.h | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index 72ab536ad3de..3849fce7ecfe 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -14,14 +14,13 @@
extern unsigned long long elfcorehdr_addr;
extern unsigned long long elfcorehdr_size;
-extern int __weak elfcorehdr_alloc(unsigned long long *addr,
- unsigned long long *size);
-extern void __weak elfcorehdr_free(unsigned long long addr);
-extern ssize_t __weak elfcorehdr_read(char *buf, size_t count, u64 *ppos);
-extern ssize_t __weak elfcorehdr_read_notes(char *buf, size_t count, u64 *ppos);
-extern int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma,
- unsigned long from, unsigned long pfn,
- unsigned long size, pgprot_t prot);
+extern int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size);
+extern void elfcorehdr_free(unsigned long long addr);
+extern ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos);
+extern ssize_t elfcorehdr_read_notes(char *buf, size_t count, u64 *ppos);
+extern int remap_oldmem_pfn_range(struct vm_area_struct *vma,
+ unsigned long from, unsigned long pfn,
+ unsigned long size, pgprot_t prot);
extern ssize_t copy_oldmem_page(unsigned long, char *, size_t,
unsigned long, int);
--
cgit v1.2.1
From 107bcc6d566cb40184068d888637f9aefe6252dd Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 13 Oct 2014 19:00:25 -0600
Subject: kgdb: Remove "weak" from kgdb_arch_pc() declaration
kernel/debug/debug_core.c provides a default kgdb_arch_pc() definition
explicitly marked "weak". Several architectures provide their own
definitions intended to override the default, but the "weak" attribute on
the declaration applied to the arch definitions as well, so the linker
chose one based on link order (see 10629d711ed7 ("PCI: Remove __weak
annotation from pcibios_get_phb_of_node decl")).
Remove the "weak" attribute from the declaration so we always prefer a
non-weak definition over the weak one, independent of link order.
Fixes: 688b744d8bc8 ("kgdb: fix signedness mixmatches, add statics, add declaration to header")
Tested-by: Vineet Gupta <vgupta@synopsys.com> # for ARC build
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Harvey Harrison <harvey.harrison@gmail.com>
---
include/linux/kgdb.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index 6b06d378f3df..e465bb15912d 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -283,7 +283,7 @@ struct kgdb_io {
extern struct kgdb_arch arch_kgdb_ops;
-extern unsigned long __weak kgdb_arch_pc(int exception, struct pt_regs *regs);
+extern unsigned long kgdb_arch_pc(int exception, struct pt_regs *regs);
#ifdef CONFIG_SERIAL_KGDB_NMI
extern int kgdb_register_nmi_console(void);
--
cgit v1.2.1
From e0a8400c6923a163265d52798cdd4c33f3f8ab5a Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 13 Oct 2014 19:00:47 -0600
Subject: memory-hotplug: Remove "weak" from memory_block_size_bytes()
declaration
drivers/base/memory.c provides a default memory_block_size_bytes()
definition explicitly marked "weak". Several architectures provide their
own definitions intended to override the default, but the "weak" attribute
on the declaration applied to the arch definitions as well, so the linker
chose one based on link order (see 10629d711ed7 ("PCI: Remove __weak
annotation from pcibios_get_phb_of_node decl")).
Remove the "weak" attribute from the declaration so we always prefer a
non-weak definition over the weak one, independent of link order.
Fixes: 41f107266b19 ("drivers: base: Add prototype declaration to the header file")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
CC: Rashika Kheria <rashika.kheria@gmail.com>
CC: Nathan Fontenot <nfont@austin.ibm.com>
CC: Anton Blanchard <anton@au1.ibm.com>
CC: Heiko Carstens <heiko.carstens@de.ibm.com>
CC: Yinghai Lu <yinghai@kernel.org>
---
include/linux/memory.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/memory.h b/include/linux/memory.h
index bb7384e3c3d8..8b8d8d12348e 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -35,7 +35,7 @@ struct memory_block {
};
int arch_get_memory_phys_device(unsigned long start_pfn);
-unsigned long __weak memory_block_size_bytes(void);
+unsigned long memory_block_size_bytes(void);
/* These states are exposed to userspace as text strings in sysfs */
#define MEM_ONLINE (1<<0) /* exposed to userspace */
--
cgit v1.2.1
From 271a9c35158910496f6fc3a635c2ed85df6be3d9 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 13 Oct 2014 19:01:03 -0600
Subject: uprobes: Remove "weak" from function declarations
For the following interfaces:
set_swbp()
set_orig_insn()
is_swbp_insn()
is_trap_insn()
uprobe_get_swbp_addr()
arch_uprobe_ignore()
arch_uprobe_copy_ixol()
kernel/events/uprobes.c provides default definitions explicitly marked
"weak". Some architectures provide their own definitions intended to
override the defaults, but the "weak" attribute on the declarations applied
to the arch definitions as well, so the linker chose one based on link
order (see 10629d711ed7 ("PCI: Remove __weak annotation from
pcibios_get_phb_of_node decl")).
Remove the "weak" attribute from the declarations so we always prefer a
non-weak definition over the weak one, independent of link order.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
CC: Victor Kamensky <victor.kamensky@linaro.org>
CC: Oleg Nesterov <oleg@redhat.com>
CC: David A. Long <dave.long@linaro.org>
CC: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
---
include/linux/uprobes.h | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index 4f844c6b03ee..60beb5dc7977 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -98,11 +98,11 @@ struct uprobes_state {
struct xol_area *xol_area;
};
-extern int __weak set_swbp(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
-extern int __weak set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
-extern bool __weak is_swbp_insn(uprobe_opcode_t *insn);
-extern bool __weak is_trap_insn(uprobe_opcode_t *insn);
-extern unsigned long __weak uprobe_get_swbp_addr(struct pt_regs *regs);
+extern int set_swbp(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
+extern int set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
+extern bool is_swbp_insn(uprobe_opcode_t *insn);
+extern bool is_trap_insn(uprobe_opcode_t *insn);
+extern unsigned long uprobe_get_swbp_addr(struct pt_regs *regs);
extern unsigned long uprobe_get_trap_addr(struct pt_regs *regs);
extern int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_t);
extern int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc);
@@ -128,8 +128,8 @@ extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data);
extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs);
extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs);
-extern bool __weak arch_uprobe_ignore(struct arch_uprobe *aup, struct pt_regs *regs);
-extern void __weak arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
+extern bool arch_uprobe_ignore(struct arch_uprobe *aup, struct pt_regs *regs);
+extern void arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
void *src, unsigned long len);
#else /* !CONFIG_UPROBES */
struct uprobes_state {
--
cgit v1.2.1
From e45708976aea3a3c3aa959e3cc2b703fefbd758a Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 22 Oct 2014 11:16:36 +0200
Subject: drm/dp-helper: Move the legacy helpers to gma500
Except for gma500 all drivers are converted to the new style helpers,
which have much better abstraction of the underlying hw protocols and
already much more helper functions (including the entire mst library)
on top of them. Since no one seems to work on converting gma500 let's
just move the code away so that new drivers don't end up accidentally
using this.
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: Alan Cox <alan@linux.intel.com>
[danvet: Add __deprecated as requested by Alan. Also add a short FIXME
comment and drop the EXPORT_SYMBOL which is no longer needed.]
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drm_dp_helper.h | 20 --------------------
1 file changed, 20 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 9305c718d789..afebb08eee3a 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -404,26 +404,6 @@
#define MODE_I2C_READ 4
#define MODE_I2C_STOP 8
-/**
- * struct i2c_algo_dp_aux_data - driver interface structure for i2c over dp
- * aux algorithm
- * @running: set by the algo indicating whether an i2c is ongoing or whether
- * the i2c bus is quiescent
- * @address: i2c target address for the currently ongoing transfer
- * @aux_ch: driver callback to transfer a single byte of the i2c payload
- */
-struct i2c_algo_dp_aux_data {
- bool running;
- u16 address;
- int (*aux_ch) (struct i2c_adapter *adapter,
- int mode, uint8_t write_byte,
- uint8_t *read_byte);
-};
-
-int
-i2c_dp_aux_add_bus(struct i2c_adapter *adapter);
-
-
#define DP_LINK_STATUS_SIZE 6
bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
int lane_count);
--
cgit v1.2.1
From a7f3a768289858f03f5c1866639c8b476c1b8ebc Mon Sep 17 00:00:00 2001
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Wed, 22 Oct 2014 15:22:49 +0300
Subject: mac80211: export IE splitting function
Export ieee80211_ie_split function, so it can be reused by
drivers which need to insert additional elements.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9dc5e7606322..96d224357c8c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4906,4 +4906,32 @@ void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf);
void ieee80211_tdls_oper_request(struct ieee80211_vif *vif, const u8 *peer,
enum nl80211_tdls_operation oper,
u16 reason_code, gfp_t gfp);
+
+/**
+ * ieee80211_ie_split - split an IE buffer according to ordering
+ *
+ * @ies: the IE buffer
+ * @ielen: the length of the IE buffer
+ * @ids: an array with element IDs that are allowed before
+ * the split
+ * @n_ids: the size of the element ID array
+ * @offset: offset where to start splitting in the buffer
+ *
+ * This function splits an IE buffer by updating the @offset
+ * variable to point to the location where the buffer should be
+ * split.
+ *
+ * It assumes that the given IE buffer is well-formed, this
+ * has to be guaranteed by the caller!
+ *
+ * It also assumes that the IEs in the buffer are ordered
+ * correctly, if not the result of using this function will not
+ * be ordered correctly either, i.e. it does no reordering.
+ *
+ * The function returns the offset where the next part of the
+ * buffer starts, which may be @ielen if the entire (remainder)
+ * of the buffer should be used.
+ */
+size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
+ const u8 *ids, int n_ids, size_t offset);
#endif /* MAC80211_H */
--
cgit v1.2.1
From 8b94148cfec4c40f4c55308fdcd816bbfe2b4016 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Wed, 22 Oct 2014 12:32:48 +0300
Subject: mac80211: expose TDLS-initiator value to low level driver
Some drivers need to know which station is the TDLS link initiator.
Expose this value via the mac80211 ieee80211_sta structure.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 96d224357c8c..99dd3ce7484e 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1427,6 +1427,8 @@ struct ieee80211_sta_rates {
* @smps_mode: current SMPS mode (off, static or dynamic)
* @rates: rate control selection table
* @tdls: indicates whether the STA is a TDLS peer
+ * @tdls_initiator: indicates the STA is an initiator of the TDLS link. Only
+ * valid if the STA is a TDLS peer in the first place.
*/
struct ieee80211_sta {
u32 supp_rates[IEEE80211_NUM_BANDS];
@@ -1442,6 +1444,7 @@ struct ieee80211_sta {
enum ieee80211_smps_mode smps_mode;
struct ieee80211_sta_rates __rcu *rates;
bool tdls;
+ bool tdls_initiator;
/* must be last */
u8 drv_priv[0] __aligned(sizeof(void *));
--
cgit v1.2.1
From 0fc1e0495fd6e261e75acdbe66b53e769e5ffb81 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Wed, 22 Oct 2014 12:30:59 +0300
Subject: mac80211: expose API allowing station iteration
Allow drivers to iterate all stations currently uploaded to them.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 99dd3ce7484e..2b7426a90ff0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4192,6 +4192,22 @@ void ieee80211_iterate_active_interfaces_rtnl(struct ieee80211_hw *hw,
struct ieee80211_vif *vif),
void *data);
+/**
+ * ieee80211_iterate_stations_atomic - iterate stations
+ *
+ * This function iterates over all stations associated with a given
+ * hardware that are currently uploaded to the driver and calls the callback
+ * function for them.
+ * This function requires the iterator callback function to be atomic,
+ *
+ * @hw: the hardware struct of which the interfaces should be iterated over
+ * @iterator: the iterator function to call, cannot sleep
+ * @data: first argument of the iterator function
+ */
+void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw,
+ void (*iterator)(void *data,
+ struct ieee80211_sta *sta),
+ void *data);
/**
* ieee80211_queue_work - add work onto the mac80211 workqueue
*
--
cgit v1.2.1
From 4aa7c6346be395bdf776f82bbb2e3e2bc60bdd2b Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:35 +0200
Subject: vfs: add i_op->dentry_open()
Add a new inode operation i_op->dentry_open(). This is for stacked filesystems
that want to return a struct file from a different filesystem.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
include/linux/fs.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a957d4366c24..5cf7f6759679 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1528,6 +1528,9 @@ struct inode_operations {
umode_t create_mode, int *opened);
int (*tmpfile) (struct inode *, struct dentry *, umode_t);
int (*set_acl)(struct inode *, struct posix_acl *, int);
+
+ /* WARNING: probably going away soon, do not use! */
+ int (*dentry_open)(struct dentry *, struct file *, const struct cred *);
} ____cacheline_aligned;
ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
@@ -2040,6 +2043,7 @@ extern struct file *file_open_name(struct filename *, int, umode_t);
extern struct file *filp_open(const char *, int, umode_t);
extern struct file *file_open_root(struct dentry *, struct vfsmount *,
const char *, int);
+extern int vfs_open(const struct path *, struct file *, const struct cred *);
extern struct file * dentry_open(const struct path *, int, const struct cred *);
extern int filp_close(struct file *, fl_owner_t id);
--
cgit v1.2.1
From 1c118596a7682912106c80007102ce0184c77780 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:35 +0200
Subject: vfs: export do_splice_direct() to modules
Export do_splice_direct() to modules. Needed by overlay filesystem.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
include/linux/fs.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5cf7f6759679..10ed65b2c31d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2456,6 +2456,9 @@ extern ssize_t iter_file_splice_write(struct pipe_inode_info *,
struct file *, loff_t *, size_t, unsigned int);
extern ssize_t generic_splice_sendpage(struct pipe_inode_info *pipe,
struct file *out, loff_t *, size_t len, unsigned int flags);
+extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
+ loff_t *opos, size_t len, unsigned int flags);
+
extern void
file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping);
--
cgit v1.2.1
From bd5d08569cc379f8366663a61558a9ce17c2e460 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:35 +0200
Subject: vfs: export __inode_permission() to modules
We need to be able to check inode permissions (but not filesystem implied
permissions) for stackable filesystems. Expose this interface for overlayfs.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
include/linux/fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 10ed65b2c31d..5419df70a835 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2257,6 +2257,7 @@ extern sector_t bmap(struct inode *, sector_t);
#endif
extern int notify_change(struct dentry *, struct iattr *, struct inode **);
extern int inode_permission(struct inode *, int);
+extern int __inode_permission(struct inode *, int);
extern int generic_permission(struct inode *, int);
static inline bool execute_ok(struct inode *inode)
--
cgit v1.2.1
From c771d683a62e5d36bc46036f5c07f4f5bb7dda61 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:36 +0200
Subject: vfs: introduce clone_private_mount()
Overlayfs needs a private clone of the mount, so create a function for
this and export to modules.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
include/linux/mount.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 9262e4bf0cc3..c2c561dc0114 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -81,6 +81,9 @@ extern struct vfsmount *mntget(struct vfsmount *mnt);
extern struct vfsmount *mnt_clone_internal(struct path *path);
extern int __mnt_is_readonly(struct vfsmount *mnt);
+struct path;
+extern struct vfsmount *clone_private_mount(struct path *path);
+
struct file_system_type;
extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,
int flags, const char *name,
--
cgit v1.2.1
From cbdf35bcb833bfd00f0925d7a9a33a21f41ea582 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:36 +0200
Subject: vfs: export check_sticky()
It's already duplicated in btrfs and about to be used in overlayfs too.
Move the sticky bit check to an inline helper and call the out-of-line
helper only in the unlikly case of the sticky bit being set.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
include/linux/fs.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5419df70a835..55cc0a319baa 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2259,6 +2259,7 @@ extern int notify_change(struct dentry *, struct iattr *, struct inode **);
extern int inode_permission(struct inode *, int);
extern int __inode_permission(struct inode *, int);
extern int generic_permission(struct inode *, int);
+extern int __check_sticky(struct inode *dir, struct inode *inode);
static inline bool execute_ok(struct inode *inode)
{
@@ -2745,6 +2746,14 @@ static inline int is_sxid(umode_t mode)
return (mode & S_ISUID) || ((mode & S_ISGID) && (mode & S_IXGRP));
}
+static inline int check_sticky(struct inode *dir, struct inode *inode)
+{
+ if (!(dir->i_mode & S_ISVTX))
+ return 0;
+
+ return __check_sticky(dir, inode);
+}
+
static inline void inode_has_no_xattr(struct inode *inode)
{
if (!is_sxid(inode->i_mode) && (inode->i_sb->s_flags & MS_NOSEC))
--
cgit v1.2.1
From 787fb6bc9682ec7c05fb5d9561b57100fbc1cc41 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:36 +0200
Subject: vfs: add whiteout support
Whiteout isn't actually a new file type, but is represented as a char
device (Linus's idea) with 0/0 device number.
This has several advantages compared to introducing a new whiteout file
type:
- no userspace API changes (e.g. trivial to make backups of upper layer
filesystem, without losing whiteouts)
- no fs image format changes (you can boot an old kernel/fsck without
whiteout support and things won't break)
- implementation is trivial
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
include/linux/fs.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 55cc0a319baa..69118b3cb917 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -222,6 +222,13 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
#define ATTR_OPEN (1 << 15) /* Truncating from open(O_TRUNC) */
#define ATTR_TIMES_SET (1 << 16)
+/*
+ * Whiteout is represented by a char device. The following constants define the
+ * mode and device number to use.
+ */
+#define WHITEOUT_MODE 0
+#define WHITEOUT_DEV 0
+
/*
* This is the Inode Attributes structure, used for notify_change(). It
* uses the above definitions as flags, to know which values have changed.
@@ -1398,6 +1405,7 @@ extern int vfs_link(struct dentry *, struct inode *, struct dentry *, struct ino
extern int vfs_rmdir(struct inode *, struct dentry *);
extern int vfs_unlink(struct inode *, struct dentry *, struct inode **);
extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *, struct inode **, unsigned int);
+extern int vfs_whiteout(struct inode *, struct dentry *);
/*
* VFS dentry helper functions.
@@ -1628,6 +1636,9 @@ struct super_operations {
#define IS_AUTOMOUNT(inode) ((inode)->i_flags & S_AUTOMOUNT)
#define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC)
+#define IS_WHITEOUT(inode) (S_ISCHR(inode->i_mode) && \
+ (inode)->i_rdev == WHITEOUT_DEV)
+
/*
* Inode state bits. Protected by inode->i_lock
*
--
cgit v1.2.1
From 0d7a855526dd672e114aff2ac22b60fc6f155b08 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:37 +0200
Subject: vfs: add RENAME_WHITEOUT
This adds a new RENAME_WHITEOUT flag. This flag makes rename() create a
whiteout of source. The whiteout creation is atomic relative to the
rename.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
include/uapi/linux/fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index ca1a11bb4443..3735fa0a6784 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -37,6 +37,7 @@
#define RENAME_NOREPLACE (1 << 0) /* Don't overwrite target */
#define RENAME_EXCHANGE (1 << 1) /* Exchange source and dest */
+#define RENAME_WHITEOUT (1 << 2) /* Whiteout source */
struct fstrim_range {
__u64 start;
--
cgit v1.2.1
From 69c433ed2ecd2d3264efd7afec4439524b319121 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:39 +0200
Subject: fs: limit filesystem stacking depth
Add a simple read-only counter to super_block that indicates how deep this
is in the stack of filesystems. Previously ecryptfs was the only stackable
filesystem and it explicitly disallowed multiple layers of itself.
Overlayfs, however, can be stacked recursively and also may be stacked
on top of ecryptfs or vice versa.
To limit the kernel stack usage we must limit the depth of the
filesystem stack. Initially the limit is set to 2.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
include/linux/fs.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 69118b3cb917..4e41a4a331bb 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -261,6 +261,12 @@ struct iattr {
*/
#include <linux/quota.h>
+/*
+ * Maximum number of layers of fs stack. Needs to be limited to
+ * prevent kernel stack overflow
+ */
+#define FILESYSTEM_MAX_STACK_DEPTH 2
+
/**
* enum positive_aop_returns - aop return codes with specific semantics
*
@@ -1273,6 +1279,11 @@ struct super_block {
struct list_lru s_dentry_lru ____cacheline_aligned_in_smp;
struct list_lru s_inode_lru ____cacheline_aligned_in_smp;
struct rcu_head rcu;
+
+ /*
+ * Indicates how deep in a filesystem stack this SB is
+ */
+ int s_stack_depth;
};
extern struct timespec current_fs_time(struct super_block *sb);
--
cgit v1.2.1
From 105970f6087ae240b00deaff85773ed9bf381145 Mon Sep 17 00:00:00 2001
From: Kenjiro Nakayama <nakayamakenjiro@gmail.com>
Date: Mon, 20 Oct 2014 18:15:50 +0900
Subject: net: Remove trailing whitespace in tcp.h icmp.c syncookies.c
Remove trailing whitespace in tcp.h icmp.c syncookies.c
Signed-off-by: Kenjiro Nakayama <nakayamakenjiro@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 4062b4f0d121..c73fc145ee45 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -55,9 +55,9 @@ void tcp_time_wait(struct sock *sk, int state, int timeo);
#define MAX_TCP_HEADER (128 + MAX_HEADER)
#define MAX_TCP_OPTION_SPACE 40
-/*
+/*
* Never offer a window over 32767 without using window scaling. Some
- * poor stacks do signed 16bit maths!
+ * poor stacks do signed 16bit maths!
*/
#define MAX_TCP_WINDOW 32767U
@@ -167,7 +167,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo);
/*
* TCP option
*/
-
+
#define TCPOPT_NOP 1 /* Padding */
#define TCPOPT_EOL 0 /* End of options */
#define TCPOPT_MSS 2 /* Segment size negotiating */
@@ -1104,16 +1104,16 @@ static inline int tcp_win_from_space(int space)
space - (space>>sysctl_tcp_adv_win_scale);
}
-/* Note: caller must be prepared to deal with negative returns */
+/* Note: caller must be prepared to deal with negative returns */
static inline int tcp_space(const struct sock *sk)
{
return tcp_win_from_space(sk->sk_rcvbuf -
atomic_read(&sk->sk_rmem_alloc));
-}
+}
static inline int tcp_full_space(const struct sock *sk)
{
- return tcp_win_from_space(sk->sk_rcvbuf);
+ return tcp_win_from_space(sk->sk_rcvbuf);
}
static inline void tcp_openreq_init(struct request_sock *req,
--
cgit v1.2.1
From 16704b129bc1e497862e88253da20b13a1b94b33 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Barr=C3=A9?= <sebastien.barre@uclouvain.be>
Date: Tue, 21 Oct 2014 15:26:15 +0200
Subject: Removed unused function sctp_addr_is_valid()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
sctp_addr_is_valid() only appeared in its definition.
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Sébastien Barré <sebastien.barre@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sctp/structs.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 4ff3f67be62c..806e3b5b3351 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1116,7 +1116,6 @@ int sctp_raw_to_bind_addrs(struct sctp_bind_addr *bp, __u8 *raw, int len,
sctp_scope_t sctp_scope(const union sctp_addr *);
int sctp_in_scope(struct net *net, const union sctp_addr *addr, const sctp_scope_t scope);
int sctp_is_any(struct sock *sk, const union sctp_addr *addr);
-int sctp_addr_is_valid(const union sctp_addr *addr);
int sctp_is_ep_boundall(struct sock *sk);
--
cgit v1.2.1
From 607ec6a5abb637642e5b8199828f39ceae83cfb7 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Date: Fri, 24 Oct 2014 08:57:01 -0200
Subject: Revert "[media] v4l2-dv-timings: fix a sparse warning"
Sparse got a fix for that. Also, it is suspected that reverting
this patch might cause compilation breakages on userspace. So,
revert it.
This reverts commit 5c2cacc1028917168b0f7650008dceaa6f7e3fe2.
Requested-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/v4l2-dv-timings.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/v4l2-dv-timings.h b/include/uapi/linux/v4l2-dv-timings.h
index 6a0764c89fcb..6c8f159e416e 100644
--- a/include/uapi/linux/v4l2-dv-timings.h
+++ b/include/uapi/linux/v4l2-dv-timings.h
@@ -21,8 +21,17 @@
#ifndef _V4L2_DV_TIMINGS_H
#define _V4L2_DV_TIMINGS_H
+#if __GNUC__ < 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ < 6))
+/* Sadly gcc versions older than 4.6 have a bug in how they initialize
+ anonymous unions where they require additional curly brackets.
+ This violates the C1x standard. This workaround adds the curly brackets
+ if needed. */
#define V4L2_INIT_BT_TIMINGS(_width, args...) \
{ .bt = { _width , ## args } }
+#else
+#define V4L2_INIT_BT_TIMINGS(_width, args...) \
+ .bt = { _width , ## args }
+#endif
/* CEA-861-E timings (i.e. standard HDTV timings) */
--
cgit v1.2.1
From 571ee1b6859869a09ed718d390aac2b9414646a2 Mon Sep 17 00:00:00 2001
From: Wanpeng Li <wanpeng.li@linux.intel.com>
Date: Thu, 9 Oct 2014 18:30:08 +0800
Subject: kvm: vfio: fix unregister kvm_device_ops of vfio
After commit 80ce163 (KVM: VFIO: register kvm_device_ops dynamically),
kvm_device_ops of vfio can be registered dynamically. Commit 3c3c29fd
(kvm-vfio: do not use module_init) move the dynamic register invoked by
kvm_init in order to fix broke unloading of the kvm module. However,
kvm_device_ops of vfio is unregistered after rmmod kvm-intel module
which lead to device type collision detection warning after kvm-intel
module reinsmod.
WARNING: CPU: 1 PID: 10358 at /root/cathy/kvm/arch/x86/kvm/../../../virt/kvm/kvm_main.c:3289 kvm_init+0x234/0x282 [kvm]()
Modules linked in: kvm_intel(O+) kvm(O) nfsv3 nfs_acl auth_rpcgss oid_registry nfsv4 dns_resolver nfs fscache lockd sunrpc pci_stub bridge stp llc autofs4 8021q cpufreq_ondemand ipv6 joydev microcode pcspkr igb i2c_algo_bit ehci_pci ehci_hcd e1000e i2c_i801 ixgbe ptp pps_core hwmon mdio tpm_tis tpm ipmi_si ipmi_msghandler acpi_cpufreq isci libsas scsi_transport_sas button dm_mirror dm_region_hash dm_log dm_mod [last unloaded: kvm_intel]
CPU: 1 PID: 10358 Comm: insmod Tainted: G W O 3.17.0-rc1 #2
Hardware name: Intel Corporation S2600CP/S2600CP, BIOS RMLSDP.86I.00.29.D696.1311111329 11/11/2013
0000000000000cd9 ffff880ff08cfd18 ffffffff814a61d9 0000000000000cd9
0000000000000000 ffff880ff08cfd58 ffffffff810417b7 ffff880ff08cfd48
ffffffffa045bcac ffffffffa049c420 0000000000000040 00000000000000ff
Call Trace:
[<ffffffff814a61d9>] dump_stack+0x49/0x60
[<ffffffff810417b7>] warn_slowpath_common+0x7c/0x96
[<ffffffffa045bcac>] ? kvm_init+0x234/0x282 [kvm]
[<ffffffff810417e6>] warn_slowpath_null+0x15/0x17
[<ffffffffa045bcac>] kvm_init+0x234/0x282 [kvm]
[<ffffffffa016e995>] vmx_init+0x1bf/0x42a [kvm_intel]
[<ffffffffa016e7d6>] ? vmx_check_processor_compat+0x64/0x64 [kvm_intel]
[<ffffffff810002ab>] do_one_initcall+0xe3/0x170
[<ffffffff811168a9>] ? __vunmap+0xad/0xb8
[<ffffffff8109c58f>] do_init_module+0x2b/0x174
[<ffffffff8109d414>] load_module+0x43e/0x569
[<ffffffff8109c6d8>] ? do_init_module+0x174/0x174
[<ffffffff8109c75a>] ? copy_module_from_user+0x39/0x82
[<ffffffff8109b7dd>] ? module_sect_show+0x20/0x20
[<ffffffff8109d65f>] SyS_init_module+0x54/0x81
[<ffffffff814a9a12>] system_call_fastpath+0x16/0x1b
---[ end trace 0626f4a3ddea56f3 ]---
The bug can be reproduced by:
rmmod kvm_intel.ko
insmod kvm_intel.ko
without rmmod/insmod kvm.ko
This patch fixes the bug by unregistering kvm_device_ops of vfio when the
kvm-intel module is removed.
Reported-by: Liu Rongrong <rongrongx.liu@intel.com>
Fixes: 3c3c29fd0d7cddc32862c350d0700ce69953e3bd
Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 28be31f49250..ea53b04993f2 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1080,6 +1080,7 @@ void kvm_device_get(struct kvm_device *dev);
void kvm_device_put(struct kvm_device *dev);
struct kvm_device *kvm_device_from_filp(struct file *filp);
int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type);
+void kvm_unregister_device_ops(u32 type);
extern struct kvm_device_ops kvm_mpic_ops;
extern struct kvm_device_ops kvm_xics_ops;
--
cgit v1.2.1
From 6b358aedced8180830727258718c3916bef3e249 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 22 Oct 2014 20:26:44 +0200
Subject: phy: marvell: Add support for 88E3016 FastEthernet PHY
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Marvell 88E3016 is a FastEthernet PHY that also can be found in Marvell
Berlin SoCs as integrated PHY.
Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/marvell_phy.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h
index 8e9a029e093d..e6982ac3200d 100644
--- a/include/linux/marvell_phy.h
+++ b/include/linux/marvell_phy.h
@@ -16,6 +16,7 @@
#define MARVELL_PHY_ID_88E1318S 0x01410e90
#define MARVELL_PHY_ID_88E1116R 0x01410e40
#define MARVELL_PHY_ID_88E1510 0x01410dd0
+#define MARVELL_PHY_ID_88E3016 0x01410e60
/* struct phy_device dev_flags definitions */
#define MARVELL_PHY_M1145_FLAGS_RESISTANCE 0x00000001
--
cgit v1.2.1
From e7de17abeda24d8acc316b2e07bd969d03099eea Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 22 Oct 2014 20:26:45 +0200
Subject: net: pxa168_eth: Provide phy_interface mode on platform_data
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The PXA168 Ethernet IP support MII and RMII connection to its PHY.
Currently, pxa168 platform_data does not provide a way to pass that
and there is one user of pxa168 platform_data (mach-mmp/gplug).
Given the pinctrl settings of gplug it uses RMII, so add and pass
a corresponding phy_interface_t.
Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/pxa168_eth.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/pxa168_eth.h b/include/linux/pxa168_eth.h
index 18d75e795606..37c381120bc8 100644
--- a/include/linux/pxa168_eth.h
+++ b/include/linux/pxa168_eth.h
@@ -13,6 +13,7 @@ struct pxa168_eth_platform_data {
*/
int speed; /* 0, SPEED_10, SPEED_100 */
int duplex; /* DUPLEX_HALF or DUPLEX_FULL */
+ phy_interface_t intf;
/*
* Override default RX/TX queue sizes if nonzero.
--
cgit v1.2.1
From 70b946f9acf4e805361bd877a7e25cc05e497c52 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Fri, 24 Oct 2014 21:56:58 +0100
Subject: regulator: Return an error from stubbed regulator_get_exclusive()
The user hasn't got a regulator and shouldn't be mislead into thinking
they have one; really we should probably remove this stub entirely (and
may well before the next merge window).
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/regulator/consumer.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index d347c805f923..c0c0a437ec75 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -282,7 +282,7 @@ devm_regulator_get(struct device *dev, const char *id)
static inline struct regulator *__must_check
regulator_get_exclusive(struct device *dev, const char *id)
{
- return NULL;
+ return ERR_PTR(-ENODEV);
}
static inline struct regulator *__must_check
--
cgit v1.2.1
From 48ec92fa4f16c0f71e95c31490c03b6c9e0e793b Mon Sep 17 00:00:00 2001
From: Alfonso Acosta <fons@spotify.com>
Date: Tue, 7 Oct 2014 08:44:10 +0000
Subject: Bluetooth: Refactor arguments of mgmt_device_connected
The values of a lot of the mgmt_device_connected() parameters come
straight from a hci_conn object. We can simplify the function by passing
the full hci_conn pointer to it.
Signed-off-by: Alfonso Acosta <fons@spotify.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci_core.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 37ff1aef0845..f1407fe0fc5b 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1310,9 +1310,8 @@ int mgmt_update_adv_data(struct hci_dev *hdev);
void mgmt_discoverable_timeout(struct hci_dev *hdev);
void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
bool persistent);
-void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
- u8 addr_type, u32 flags, u8 *name, u8 name_len,
- u8 *dev_class);
+void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
+ u32 flags, u8 *name, u8 name_len);
void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 link_type, u8 addr_type, u8 reason,
bool mgmt_connected);
--
cgit v1.2.1
From fd45ada9105635a69cbaa2d142d502d402eef6fe Mon Sep 17 00:00:00 2001
From: Alfonso Acosta <fons@spotify.com>
Date: Tue, 7 Oct 2014 08:44:11 +0000
Subject: Bluetooth: Include ADV_IND report in Device Connected event
There are scenarios when autoconnecting to a device after the
reception of an ADV_IND report (action 0x02), in which userland
might want to examine the report's contents.
For instance, the Service Data might have changed and it would be
useful to know ahead of time before starting any GATT procedures.
Also, the ADV_IND may contain Manufacturer Specific data which would
be lost if not propagated to userland. In fact, this patch results
from the need to rebond with a device lacking persistent storage which
notifies about losing its LTK in ADV_IND reports.
This patch appends the ADV_IND report which triggered the
autoconnection to the EIR Data in the Device Connected event.
Signed-off-by: Alfonso Acosta <fons@spotify.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci_core.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index f1407fe0fc5b..07ddeed62419 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -398,6 +398,8 @@ struct hci_conn {
__u16 le_conn_interval;
__u16 le_conn_latency;
__u16 le_supv_timeout;
+ __u8 le_adv_data[HCI_MAX_AD_LENGTH];
+ __u8 le_adv_data_len;
__s8 rssi;
__s8 tx_power;
__s8 max_tx_power;
--
cgit v1.2.1
From 89cbb0638e9b7ba6fab02558f47a29f144df1a19 Mon Sep 17 00:00:00 2001
From: Alfonso Acosta <fons@spotify.com>
Date: Sat, 11 Oct 2014 21:44:47 +0000
Subject: Bluetooth: Defer connection-parameter removal when unpairing
Systematically removing the LE connection parameters and autoconnect
action is inconvenient for rebonding without disconnecting from
userland (i.e. unpairing followed by repairing without
disconnecting). The parameters will be lost after unparing and
userland needs to take care of book-keeping them and re-adding them.
This patch allows userland to forget about parameter management when
rebonding without disconnecting. It defers clearing the connection
parameters when unparing without disconnecting, giving a chance of
keeping the parameters if a repairing happens before the connection is
closed.
Signed-off-by: Alfonso Acosta <fons@spotify.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 07ddeed62419..b8685a77a15e 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -555,6 +555,7 @@ enum {
HCI_CONN_STK_ENCRYPT,
HCI_CONN_AUTH_INITIATOR,
HCI_CONN_DROP,
+ HCI_CONN_PARAM_REMOVAL_PEND,
};
static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
--
cgit v1.2.1
From b3020f0a35fc431f7acf3fba9a5b7376d79932e5 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 25 Oct 2014 05:25:07 +0200
Subject: ieee802154: mac802154: remove FSF address
This patch removes the FSF address in files which belongs to ieee802154
and mac802154.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/nl802154.h | 4 ----
include/net/af_ieee802154.h | 4 ----
include/net/ieee802154.h | 4 ----
include/net/ieee802154_netdev.h | 4 ----
include/net/mac802154.h | 3 ---
include/net/nl802154.h | 4 ----
include/net/wpan-phy.h | 4 ----
7 files changed, 27 deletions(-)
(limited to 'include')
diff --git a/include/linux/nl802154.h b/include/linux/nl802154.h
index 20163b9a0eae..167342c2ce6b 100644
--- a/include/linux/nl802154.h
+++ b/include/linux/nl802154.h
@@ -12,10 +12,6 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
*/
#ifndef NL802154_H
diff --git a/include/net/af_ieee802154.h b/include/net/af_ieee802154.h
index 085940f7eeec..7d38e2ffd256 100644
--- a/include/net/af_ieee802154.h
+++ b/include/net/af_ieee802154.h
@@ -12,10 +12,6 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
* Written by:
* Sergey Lapin <slapin@ossfans.org>
* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
diff --git a/include/net/ieee802154.h b/include/net/ieee802154.h
index 0aa7122e8f15..4db4e320b2f5 100644
--- a/include/net/ieee802154.h
+++ b/include/net/ieee802154.h
@@ -12,10 +12,6 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
* Written by:
* Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
* Maxim Gorbachyov <maxim.gorbachev@siemens.com>
diff --git a/include/net/ieee802154_netdev.h b/include/net/ieee802154_netdev.h
index 3b53c8e405e4..f87420689d70 100644
--- a/include/net/ieee802154_netdev.h
+++ b/include/net/ieee802154_netdev.h
@@ -12,10 +12,6 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
* Written by:
* Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
* Maxim Gorbachyov <maxim.gorbachev@siemens.com>
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 2e67cdd19cdc..f95b98ec50a8 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -12,9 +12,6 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef NET_MAC802154_H
#define NET_MAC802154_H
diff --git a/include/net/nl802154.h b/include/net/nl802154.h
index b23548e04098..b5cdea29d9d9 100644
--- a/include/net/nl802154.h
+++ b/include/net/nl802154.h
@@ -12,10 +12,6 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
*/
#ifndef IEEE802154_NL_H
diff --git a/include/net/wpan-phy.h b/include/net/wpan-phy.h
index 10ab0fc6d4f7..65a05f19eb68 100644
--- a/include/net/wpan-phy.h
+++ b/include/net/wpan-phy.h
@@ -10,10 +10,6 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
* Written by:
* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
*/
--
cgit v1.2.1
From 57205c14ca9147c1907556f77998cf82624d9fd6 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 25 Oct 2014 05:25:09 +0200
Subject: mac802154: fix typo IEEE802515 to IEEE802154
This patch fixs a typo in address filter defines from IEEE802515 to
IEEE802154.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index f95b98ec50a8..70351de3a72c 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -32,13 +32,13 @@
*/
/* indicates that the Short Address changed */
-#define IEEE802515_AFILT_SADDR_CHANGED 0x00000001
+#define IEEE802154_AFILT_SADDR_CHANGED 0x00000001
/* indicates that the IEEE Address changed */
-#define IEEE802515_AFILT_IEEEADDR_CHANGED 0x00000002
+#define IEEE802154_AFILT_IEEEADDR_CHANGED 0x00000002
/* indicates that the PAN ID changed */
-#define IEEE802515_AFILT_PANID_CHANGED 0x00000004
+#define IEEE802154_AFILT_PANID_CHANGED 0x00000004
/* indicates that PAN Coordinator status changed */
-#define IEEE802515_AFILT_PANC_CHANGED 0x00000008
+#define IEEE802154_AFILT_PANC_CHANGED 0x00000008
struct ieee802154_hw_addr_filt {
__le16 pan_id; /* Each independent PAN selects a unique
--
cgit v1.2.1
From 4896167d9761ede678c36999eea0450c355991d4 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 25 Oct 2014 05:25:10 +0200
Subject: ieee802154: wpan-phy: change to __aligned(size)
This patch fix a checkpatch warning that __aligned(size) is preferred
over __attribute__((aligned(size))).
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/wpan-phy.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/wpan-phy.h b/include/net/wpan-phy.h
index 65a05f19eb68..fa827c923391 100644
--- a/include/net/wpan-phy.h
+++ b/include/net/wpan-phy.h
@@ -65,7 +65,7 @@ struct wpan_phy {
u8 retries);
int (*set_frame_retries)(struct wpan_phy *phy, s8 retries);
- char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
+ char priv[0] __aligned(NETDEV_ALIGN);
};
#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
--
cgit v1.2.1
From e72740d057fea18be17587ff84ecebf09b30ca7d Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 25 Oct 2014 05:25:11 +0200
Subject: ieee802154: wpan-phy: use blank line after function
This patch adds a blank line after function declaration.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/wpan-phy.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/wpan-phy.h b/include/net/wpan-phy.h
index fa827c923391..1e9795f116ba 100644
--- a/include/net/wpan-phy.h
+++ b/include/net/wpan-phy.h
@@ -75,6 +75,7 @@ static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
{
phy->dev.parent = dev;
}
+
int wpan_phy_register(struct wpan_phy *phy);
void wpan_phy_unregister(struct wpan_phy *phy);
void wpan_phy_free(struct wpan_phy *phy);
--
cgit v1.2.1
From acd8256723f286b7217801fbed24503f8565b91e Mon Sep 17 00:00:00 2001
From: "Ivan T. Ivanov" <iivanov@mm-sol.com>
Date: Wed, 22 Oct 2014 18:29:43 +0300
Subject: iio: inkern: Add of_xlate function to struct iio_info
When #iio-cells is greater than '0', the driver could provide
a custom of_xlate function that reads the *args* and returns
the appropriate index in registered IIO channels array.
Add simple translation function, suitable for the most 1:1
mapped channels in IIO chips, and use it when driver did not
provide custom implementation.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
include/linux/iio/iio.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 15dc6bc2bdd2..3642ce7ef512 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -13,6 +13,7 @@
#include <linux/device.h>
#include <linux/cdev.h>
#include <linux/iio/types.h>
+#include <linux/of.h>
/* IIO TODO LIST */
/*
* Provide means of adjusting timer accuracy.
@@ -326,6 +327,11 @@ struct iio_dev;
* @update_scan_mode: function to configure device and scan buffer when
* channels have changed
* @debugfs_reg_access: function to read or write register value of device
+ * @of_xlate: function pointer to obtain channel specifier index.
+ * When #iio-cells is greater than '0', the driver could
+ * provide a custom of_xlate function that reads the
+ * *args* and returns the appropriate index in registered
+ * IIO channels array.
**/
struct iio_info {
struct module *driver_module;
@@ -385,6 +391,8 @@ struct iio_info {
int (*debugfs_reg_access)(struct iio_dev *indio_dev,
unsigned reg, unsigned writeval,
unsigned *readval);
+ int (*of_xlate)(struct iio_dev *indio_dev,
+ const struct of_phandle_args *iiospec);
};
/**
--
cgit v1.2.1
From a1fc198046181304d28a018dba048b718f2d7ce4 Mon Sep 17 00:00:00 2001
From: Steve Longerbeam <steve_longerbeam@mentor.com>
Date: Tue, 14 Oct 2014 20:41:49 +0300
Subject: ARM: i.MX6: Fix "emi" clock name typo
Fix a typo error, the "emi" names refer to the eim clocks.
The change fixes typo in EIM and EIM_SLOW pre-output dividers and
selectors clock names. Notably EIM_SLOW clock itself is named correctly.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
[vladimir_zapolskiy@mentor.com: ported to v3.17]
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
include/dt-bindings/clock/imx6qdl-clock.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h
index ddaef8620b2c..b690cdba163b 100644
--- a/include/dt-bindings/clock/imx6qdl-clock.h
+++ b/include/dt-bindings/clock/imx6qdl-clock.h
@@ -62,8 +62,8 @@
#define IMX6QDL_CLK_USDHC3_SEL 50
#define IMX6QDL_CLK_USDHC4_SEL 51
#define IMX6QDL_CLK_ENFC_SEL 52
-#define IMX6QDL_CLK_EMI_SEL 53
-#define IMX6QDL_CLK_EMI_SLOW_SEL 54
+#define IMX6QDL_CLK_EIM_SEL 53
+#define IMX6QDL_CLK_EIM_SLOW_SEL 54
#define IMX6QDL_CLK_VDO_AXI_SEL 55
#define IMX6QDL_CLK_VPU_AXI_SEL 56
#define IMX6QDL_CLK_CKO1_SEL 57
@@ -106,8 +106,8 @@
#define IMX6QDL_CLK_USDHC4_PODF 94
#define IMX6QDL_CLK_ENFC_PRED 95
#define IMX6QDL_CLK_ENFC_PODF 96
-#define IMX6QDL_CLK_EMI_PODF 97
-#define IMX6QDL_CLK_EMI_SLOW_PODF 98
+#define IMX6QDL_CLK_EIM_PODF 97
+#define IMX6QDL_CLK_EIM_SLOW_PODF 98
#define IMX6QDL_CLK_VPU_AXI_PODF 99
#define IMX6QDL_CLK_CKO1_PODF 100
#define IMX6QDL_CLK_AXI 101
--
cgit v1.2.1
From 5ad60d36993596f7b3b958500f9c66c5338cd855 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 25 Oct 2014 09:41:02 +0200
Subject: ieee802154: move wpan-phy.h to cfg802154.h
The wpan-phy header contains the wpan_phy struct information. Later this
header will be have similar function like cfg80211 header. The cfg80211
header contains the wiphy struct which is identically the wpan_phy
struct inside 802.15.4 subsystem.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 103 ++++++++++++++++++++++++++++++++++++++++++++++++
include/net/wpan-phy.h | 102 -----------------------------------------------
2 files changed, 103 insertions(+), 102 deletions(-)
create mode 100644 include/net/cfg802154.h
delete mode 100644 include/net/wpan-phy.h
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
new file mode 100644
index 000000000000..5c674673ef20
--- /dev/null
+++ b/include/net/cfg802154.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2007, 2008, 2009 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Written by:
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#ifndef __NET_CFG802154_H
+#define __NET_CFG802154_H
+
+#include <linux/netdevice.h>
+#include <linux/mutex.h>
+#include <linux/bug.h>
+
+/* According to the IEEE 802.15.4 stadard the upper most significant bits of
+ * the 32-bit channel bitmaps shall be used as an integer value to specify 32
+ * possible channel pages. The lower 27 bits of the channel bit map shall be
+ * used as a bit mask to specify channel numbers within a channel page.
+ */
+#define WPAN_NUM_CHANNELS 27
+#define WPAN_NUM_PAGES 32
+
+struct wpan_phy {
+ struct mutex pib_lock;
+
+ /*
+ * This is a PIB according to 802.15.4-2011.
+ * We do not provide timing-related variables, as they
+ * aren't used outside of driver
+ */
+ u8 current_channel;
+ u8 current_page;
+ u32 channels_supported[32];
+ s8 transmit_power;
+ u8 cca_mode;
+ u8 min_be;
+ u8 max_be;
+ u8 csma_retries;
+ s8 frame_retries;
+
+ bool lbt;
+ s32 cca_ed_level;
+
+ struct device dev;
+ int idx;
+
+ struct net_device *(*add_iface)(struct wpan_phy *phy,
+ const char *name, int type);
+ void (*del_iface)(struct wpan_phy *phy, struct net_device *dev);
+
+ int (*set_txpower)(struct wpan_phy *phy, int db);
+ int (*set_lbt)(struct wpan_phy *phy, bool on);
+ int (*set_cca_mode)(struct wpan_phy *phy, u8 cca_mode);
+ int (*set_cca_ed_level)(struct wpan_phy *phy, int level);
+ int (*set_csma_params)(struct wpan_phy *phy, u8 min_be, u8 max_be,
+ u8 retries);
+ int (*set_frame_retries)(struct wpan_phy *phy, s8 retries);
+
+ char priv[0] __aligned(NETDEV_ALIGN);
+};
+
+#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
+
+struct wpan_phy *wpan_phy_alloc(size_t priv_size);
+static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
+{
+ phy->dev.parent = dev;
+}
+
+int wpan_phy_register(struct wpan_phy *phy);
+void wpan_phy_unregister(struct wpan_phy *phy);
+void wpan_phy_free(struct wpan_phy *phy);
+/* Same semantics as for class_for_each_device */
+int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
+
+static inline void *wpan_phy_priv(struct wpan_phy *phy)
+{
+ BUG_ON(!phy);
+ return &phy->priv;
+}
+
+struct wpan_phy *wpan_phy_find(const char *str);
+
+static inline void wpan_phy_put(struct wpan_phy *phy)
+{
+ put_device(&phy->dev);
+}
+
+static inline const char *wpan_phy_name(struct wpan_phy *phy)
+{
+ return dev_name(&phy->dev);
+}
+
+#endif /* __NET_CFG802154_H */
diff --git a/include/net/wpan-phy.h b/include/net/wpan-phy.h
deleted file mode 100644
index 1e9795f116ba..000000000000
--- a/include/net/wpan-phy.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (C) 2007, 2008, 2009 Siemens AG
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Written by:
- * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
- */
-
-#ifndef WPAN_PHY_H
-#define WPAN_PHY_H
-
-#include <linux/netdevice.h>
-#include <linux/mutex.h>
-#include <linux/bug.h>
-
-/* According to the IEEE 802.15.4 stadard the upper most significant bits of
- * the 32-bit channel bitmaps shall be used as an integer value to specify 32
- * possible channel pages. The lower 27 bits of the channel bit map shall be
- * used as a bit mask to specify channel numbers within a channel page.
- */
-#define WPAN_NUM_CHANNELS 27
-#define WPAN_NUM_PAGES 32
-
-struct wpan_phy {
- struct mutex pib_lock;
-
- /*
- * This is a PIB according to 802.15.4-2011.
- * We do not provide timing-related variables, as they
- * aren't used outside of driver
- */
- u8 current_channel;
- u8 current_page;
- u32 channels_supported[32];
- s8 transmit_power;
- u8 cca_mode;
- u8 min_be;
- u8 max_be;
- u8 csma_retries;
- s8 frame_retries;
-
- bool lbt;
- s32 cca_ed_level;
-
- struct device dev;
- int idx;
-
- struct net_device *(*add_iface)(struct wpan_phy *phy,
- const char *name, int type);
- void (*del_iface)(struct wpan_phy *phy, struct net_device *dev);
-
- int (*set_txpower)(struct wpan_phy *phy, int db);
- int (*set_lbt)(struct wpan_phy *phy, bool on);
- int (*set_cca_mode)(struct wpan_phy *phy, u8 cca_mode);
- int (*set_cca_ed_level)(struct wpan_phy *phy, int level);
- int (*set_csma_params)(struct wpan_phy *phy, u8 min_be, u8 max_be,
- u8 retries);
- int (*set_frame_retries)(struct wpan_phy *phy, s8 retries);
-
- char priv[0] __aligned(NETDEV_ALIGN);
-};
-
-#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
-
-struct wpan_phy *wpan_phy_alloc(size_t priv_size);
-static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
-{
- phy->dev.parent = dev;
-}
-
-int wpan_phy_register(struct wpan_phy *phy);
-void wpan_phy_unregister(struct wpan_phy *phy);
-void wpan_phy_free(struct wpan_phy *phy);
-/* Same semantics as for class_for_each_device */
-int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
-
-static inline void *wpan_phy_priv(struct wpan_phy *phy)
-{
- BUG_ON(!phy);
- return &phy->priv;
-}
-
-struct wpan_phy *wpan_phy_find(const char *str);
-
-static inline void wpan_phy_put(struct wpan_phy *phy)
-{
- put_device(&phy->dev);
-}
-
-static inline const char *wpan_phy_name(struct wpan_phy *phy)
-{
- return dev_name(&phy->dev);
-}
-#endif
--
cgit v1.2.1
From 4ca24aca55fe1e2a61f3ffaac9015d9c45204729 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 25 Oct 2014 09:41:04 +0200
Subject: ieee802154: move ieee802154 header
This patch moves the ieee802154 header into include/linux instead
include/net. Similar like wireless which have the ieee80211 header
inside of include/linux.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 189 +++++++++++++++++++++++++++++++++++++++
include/net/ieee802154.h | 191 ----------------------------------------
include/net/ieee802154_netdev.h | 2 +-
3 files changed, 190 insertions(+), 192 deletions(-)
create mode 100644 include/linux/ieee802154.h
delete mode 100644 include/net/ieee802154.h
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
new file mode 100644
index 000000000000..2dfab2db103a
--- /dev/null
+++ b/include/linux/ieee802154.h
@@ -0,0 +1,189 @@
+/*
+ * IEEE802.15.4-2003 specification
+ *
+ * Copyright (C) 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Written by:
+ * Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
+ * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
+ * Maxim Osipov <maxim.osipov@siemens.com>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
+ */
+
+#ifndef LINUX_IEEE802154_H
+#define LINUX_IEEE802154_H
+
+#define IEEE802154_MTU 127
+
+#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
+#define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */
+#define IEEE802154_FC_TYPE_ACK 0x2 /* Frame is acknowledgment */
+#define IEEE802154_FC_TYPE_MAC_CMD 0x3 /* Frame is MAC command */
+
+#define IEEE802154_FC_TYPE_SHIFT 0
+#define IEEE802154_FC_TYPE_MASK ((1 << 3) - 1)
+#define IEEE802154_FC_TYPE(x) ((x & IEEE802154_FC_TYPE_MASK) >> IEEE802154_FC_TYPE_SHIFT)
+#define IEEE802154_FC_SET_TYPE(v, x) do { \
+ v = (((v) & ~IEEE802154_FC_TYPE_MASK) | \
+ (((x) << IEEE802154_FC_TYPE_SHIFT) & IEEE802154_FC_TYPE_MASK)); \
+ } while (0)
+
+#define IEEE802154_FC_SECEN_SHIFT 3
+#define IEEE802154_FC_SECEN (1 << IEEE802154_FC_SECEN_SHIFT)
+#define IEEE802154_FC_FRPEND_SHIFT 4
+#define IEEE802154_FC_FRPEND (1 << IEEE802154_FC_FRPEND_SHIFT)
+#define IEEE802154_FC_ACK_REQ_SHIFT 5
+#define IEEE802154_FC_ACK_REQ (1 << IEEE802154_FC_ACK_REQ_SHIFT)
+#define IEEE802154_FC_INTRA_PAN_SHIFT 6
+#define IEEE802154_FC_INTRA_PAN (1 << IEEE802154_FC_INTRA_PAN_SHIFT)
+
+#define IEEE802154_FC_SAMODE_SHIFT 14
+#define IEEE802154_FC_SAMODE_MASK (3 << IEEE802154_FC_SAMODE_SHIFT)
+#define IEEE802154_FC_DAMODE_SHIFT 10
+#define IEEE802154_FC_DAMODE_MASK (3 << IEEE802154_FC_DAMODE_SHIFT)
+
+#define IEEE802154_FC_VERSION_SHIFT 12
+#define IEEE802154_FC_VERSION_MASK (3 << IEEE802154_FC_VERSION_SHIFT)
+#define IEEE802154_FC_VERSION(x) ((x & IEEE802154_FC_VERSION_MASK) >> IEEE802154_FC_VERSION_SHIFT)
+
+#define IEEE802154_FC_SAMODE(x) \
+ (((x) & IEEE802154_FC_SAMODE_MASK) >> IEEE802154_FC_SAMODE_SHIFT)
+
+#define IEEE802154_FC_DAMODE(x) \
+ (((x) & IEEE802154_FC_DAMODE_MASK) >> IEEE802154_FC_DAMODE_SHIFT)
+
+#define IEEE802154_SCF_SECLEVEL_MASK 7
+#define IEEE802154_SCF_SECLEVEL_SHIFT 0
+#define IEEE802154_SCF_SECLEVEL(x) (x & IEEE802154_SCF_SECLEVEL_MASK)
+#define IEEE802154_SCF_KEY_ID_MODE_SHIFT 3
+#define IEEE802154_SCF_KEY_ID_MODE_MASK (3 << IEEE802154_SCF_KEY_ID_MODE_SHIFT)
+#define IEEE802154_SCF_KEY_ID_MODE(x) \
+ ((x & IEEE802154_SCF_KEY_ID_MODE_MASK) >> IEEE802154_SCF_KEY_ID_MODE_SHIFT)
+
+#define IEEE802154_SCF_KEY_IMPLICIT 0
+#define IEEE802154_SCF_KEY_INDEX 1
+#define IEEE802154_SCF_KEY_SHORT_INDEX 2
+#define IEEE802154_SCF_KEY_HW_INDEX 3
+
+#define IEEE802154_SCF_SECLEVEL_NONE 0
+#define IEEE802154_SCF_SECLEVEL_MIC32 1
+#define IEEE802154_SCF_SECLEVEL_MIC64 2
+#define IEEE802154_SCF_SECLEVEL_MIC128 3
+#define IEEE802154_SCF_SECLEVEL_ENC 4
+#define IEEE802154_SCF_SECLEVEL_ENC_MIC32 5
+#define IEEE802154_SCF_SECLEVEL_ENC_MIC64 6
+#define IEEE802154_SCF_SECLEVEL_ENC_MIC128 7
+
+/* MAC footer size */
+#define IEEE802154_MFR_SIZE 2 /* 2 octets */
+
+/* MAC's Command Frames Identifiers */
+#define IEEE802154_CMD_ASSOCIATION_REQ 0x01
+#define IEEE802154_CMD_ASSOCIATION_RESP 0x02
+#define IEEE802154_CMD_DISASSOCIATION_NOTIFY 0x03
+#define IEEE802154_CMD_DATA_REQ 0x04
+#define IEEE802154_CMD_PANID_CONFLICT_NOTIFY 0x05
+#define IEEE802154_CMD_ORPHAN_NOTIFY 0x06
+#define IEEE802154_CMD_BEACON_REQ 0x07
+#define IEEE802154_CMD_COORD_REALIGN_NOTIFY 0x08
+#define IEEE802154_CMD_GTS_REQ 0x09
+
+/*
+ * The return values of MAC operations
+ */
+enum {
+ /*
+ * The requested operation was completed successfully.
+ * For a transmission request, this value indicates
+ * a successful transmission.
+ */
+ IEEE802154_SUCCESS = 0x0,
+
+ /* The beacon was lost following a synchronization request. */
+ IEEE802154_BEACON_LOSS = 0xe0,
+ /*
+ * A transmission could not take place due to activity on the
+ * channel, i.e., the CSMA-CA mechanism has failed.
+ */
+ IEEE802154_CHNL_ACCESS_FAIL = 0xe1,
+ /* The GTS request has been denied by the PAN coordinator. */
+ IEEE802154_DENINED = 0xe2,
+ /* The attempt to disable the transceiver has failed. */
+ IEEE802154_DISABLE_TRX_FAIL = 0xe3,
+ /*
+ * The received frame induces a failed security check according to
+ * the security suite.
+ */
+ IEEE802154_FAILED_SECURITY_CHECK = 0xe4,
+ /*
+ * The frame resulting from secure processing has a length that is
+ * greater than aMACMaxFrameSize.
+ */
+ IEEE802154_FRAME_TOO_LONG = 0xe5,
+ /*
+ * The requested GTS transmission failed because the specified GTS
+ * either did not have a transmit GTS direction or was not defined.
+ */
+ IEEE802154_INVALID_GTS = 0xe6,
+ /*
+ * A request to purge an MSDU from the transaction queue was made using
+ * an MSDU handle that was not found in the transaction table.
+ */
+ IEEE802154_INVALID_HANDLE = 0xe7,
+ /* A parameter in the primitive is out of the valid range.*/
+ IEEE802154_INVALID_PARAMETER = 0xe8,
+ /* No acknowledgment was received after aMaxFrameRetries. */
+ IEEE802154_NO_ACK = 0xe9,
+ /* A scan operation failed to find any network beacons.*/
+ IEEE802154_NO_BEACON = 0xea,
+ /* No response data were available following a request. */
+ IEEE802154_NO_DATA = 0xeb,
+ /* The operation failed because a short address was not allocated. */
+ IEEE802154_NO_SHORT_ADDRESS = 0xec,
+ /*
+ * A receiver enable request was unsuccessful because it could not be
+ * completed within the CAP.
+ */
+ IEEE802154_OUT_OF_CAP = 0xed,
+ /*
+ * A PAN identifier conflict has been detected and communicated to the
+ * PAN coordinator.
+ */
+ IEEE802154_PANID_CONFLICT = 0xee,
+ /* A coordinator realignment command has been received. */
+ IEEE802154_REALIGMENT = 0xef,
+ /* The transaction has expired and its information discarded. */
+ IEEE802154_TRANSACTION_EXPIRED = 0xf0,
+ /* There is no capacity to store the transaction. */
+ IEEE802154_TRANSACTION_OVERFLOW = 0xf1,
+ /*
+ * The transceiver was in the transmitter enabled state when the
+ * receiver was requested to be enabled.
+ */
+ IEEE802154_TX_ACTIVE = 0xf2,
+ /* The appropriate key is not available in the ACL. */
+ IEEE802154_UNAVAILABLE_KEY = 0xf3,
+ /*
+ * A SET/GET request was issued with the identifier of a PIB attribute
+ * that is not supported.
+ */
+ IEEE802154_UNSUPPORTED_ATTR = 0xf4,
+ /*
+ * A request to perform a scan operation failed because the MLME was
+ * in the process of performing a previously initiated scan operation.
+ */
+ IEEE802154_SCAN_IN_PROGRESS = 0xfc,
+};
+
+
+#endif /* LINUX_IEEE802154_H */
diff --git a/include/net/ieee802154.h b/include/net/ieee802154.h
deleted file mode 100644
index 4db4e320b2f5..000000000000
--- a/include/net/ieee802154.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * IEEE802.15.4-2003 specification
- *
- * Copyright (C) 2007, 2008 Siemens AG
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Written by:
- * Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
- * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
- * Maxim Osipov <maxim.osipov@siemens.com>
- * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
- * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
- */
-
-#ifndef NET_IEEE802154_H
-#define NET_IEEE802154_H
-
-#define IEEE802154_MTU 127
-
-#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
-#define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */
-#define IEEE802154_FC_TYPE_ACK 0x2 /* Frame is acknowledgment */
-#define IEEE802154_FC_TYPE_MAC_CMD 0x3 /* Frame is MAC command */
-
-#define IEEE802154_FC_TYPE_SHIFT 0
-#define IEEE802154_FC_TYPE_MASK ((1 << 3) - 1)
-#define IEEE802154_FC_TYPE(x) ((x & IEEE802154_FC_TYPE_MASK) >> IEEE802154_FC_TYPE_SHIFT)
-#define IEEE802154_FC_SET_TYPE(v, x) do { \
- v = (((v) & ~IEEE802154_FC_TYPE_MASK) | \
- (((x) << IEEE802154_FC_TYPE_SHIFT) & IEEE802154_FC_TYPE_MASK)); \
- } while (0)
-
-#define IEEE802154_FC_SECEN_SHIFT 3
-#define IEEE802154_FC_SECEN (1 << IEEE802154_FC_SECEN_SHIFT)
-#define IEEE802154_FC_FRPEND_SHIFT 4
-#define IEEE802154_FC_FRPEND (1 << IEEE802154_FC_FRPEND_SHIFT)
-#define IEEE802154_FC_ACK_REQ_SHIFT 5
-#define IEEE802154_FC_ACK_REQ (1 << IEEE802154_FC_ACK_REQ_SHIFT)
-#define IEEE802154_FC_INTRA_PAN_SHIFT 6
-#define IEEE802154_FC_INTRA_PAN (1 << IEEE802154_FC_INTRA_PAN_SHIFT)
-
-#define IEEE802154_FC_SAMODE_SHIFT 14
-#define IEEE802154_FC_SAMODE_MASK (3 << IEEE802154_FC_SAMODE_SHIFT)
-#define IEEE802154_FC_DAMODE_SHIFT 10
-#define IEEE802154_FC_DAMODE_MASK (3 << IEEE802154_FC_DAMODE_SHIFT)
-
-#define IEEE802154_FC_VERSION_SHIFT 12
-#define IEEE802154_FC_VERSION_MASK (3 << IEEE802154_FC_VERSION_SHIFT)
-#define IEEE802154_FC_VERSION(x) ((x & IEEE802154_FC_VERSION_MASK) >> IEEE802154_FC_VERSION_SHIFT)
-
-#define IEEE802154_FC_SAMODE(x) \
- (((x) & IEEE802154_FC_SAMODE_MASK) >> IEEE802154_FC_SAMODE_SHIFT)
-
-#define IEEE802154_FC_DAMODE(x) \
- (((x) & IEEE802154_FC_DAMODE_MASK) >> IEEE802154_FC_DAMODE_SHIFT)
-
-#define IEEE802154_SCF_SECLEVEL_MASK 7
-#define IEEE802154_SCF_SECLEVEL_SHIFT 0
-#define IEEE802154_SCF_SECLEVEL(x) (x & IEEE802154_SCF_SECLEVEL_MASK)
-#define IEEE802154_SCF_KEY_ID_MODE_SHIFT 3
-#define IEEE802154_SCF_KEY_ID_MODE_MASK (3 << IEEE802154_SCF_KEY_ID_MODE_SHIFT)
-#define IEEE802154_SCF_KEY_ID_MODE(x) \
- ((x & IEEE802154_SCF_KEY_ID_MODE_MASK) >> IEEE802154_SCF_KEY_ID_MODE_SHIFT)
-
-#define IEEE802154_SCF_KEY_IMPLICIT 0
-#define IEEE802154_SCF_KEY_INDEX 1
-#define IEEE802154_SCF_KEY_SHORT_INDEX 2
-#define IEEE802154_SCF_KEY_HW_INDEX 3
-
-#define IEEE802154_SCF_SECLEVEL_NONE 0
-#define IEEE802154_SCF_SECLEVEL_MIC32 1
-#define IEEE802154_SCF_SECLEVEL_MIC64 2
-#define IEEE802154_SCF_SECLEVEL_MIC128 3
-#define IEEE802154_SCF_SECLEVEL_ENC 4
-#define IEEE802154_SCF_SECLEVEL_ENC_MIC32 5
-#define IEEE802154_SCF_SECLEVEL_ENC_MIC64 6
-#define IEEE802154_SCF_SECLEVEL_ENC_MIC128 7
-
-/* MAC footer size */
-#define IEEE802154_MFR_SIZE 2 /* 2 octets */
-
-/* MAC's Command Frames Identifiers */
-#define IEEE802154_CMD_ASSOCIATION_REQ 0x01
-#define IEEE802154_CMD_ASSOCIATION_RESP 0x02
-#define IEEE802154_CMD_DISASSOCIATION_NOTIFY 0x03
-#define IEEE802154_CMD_DATA_REQ 0x04
-#define IEEE802154_CMD_PANID_CONFLICT_NOTIFY 0x05
-#define IEEE802154_CMD_ORPHAN_NOTIFY 0x06
-#define IEEE802154_CMD_BEACON_REQ 0x07
-#define IEEE802154_CMD_COORD_REALIGN_NOTIFY 0x08
-#define IEEE802154_CMD_GTS_REQ 0x09
-
-/*
- * The return values of MAC operations
- */
-enum {
- /*
- * The requested operation was completed successfully.
- * For a transmission request, this value indicates
- * a successful transmission.
- */
- IEEE802154_SUCCESS = 0x0,
-
- /* The beacon was lost following a synchronization request. */
- IEEE802154_BEACON_LOSS = 0xe0,
- /*
- * A transmission could not take place due to activity on the
- * channel, i.e., the CSMA-CA mechanism has failed.
- */
- IEEE802154_CHNL_ACCESS_FAIL = 0xe1,
- /* The GTS request has been denied by the PAN coordinator. */
- IEEE802154_DENINED = 0xe2,
- /* The attempt to disable the transceiver has failed. */
- IEEE802154_DISABLE_TRX_FAIL = 0xe3,
- /*
- * The received frame induces a failed security check according to
- * the security suite.
- */
- IEEE802154_FAILED_SECURITY_CHECK = 0xe4,
- /*
- * The frame resulting from secure processing has a length that is
- * greater than aMACMaxFrameSize.
- */
- IEEE802154_FRAME_TOO_LONG = 0xe5,
- /*
- * The requested GTS transmission failed because the specified GTS
- * either did not have a transmit GTS direction or was not defined.
- */
- IEEE802154_INVALID_GTS = 0xe6,
- /*
- * A request to purge an MSDU from the transaction queue was made using
- * an MSDU handle that was not found in the transaction table.
- */
- IEEE802154_INVALID_HANDLE = 0xe7,
- /* A parameter in the primitive is out of the valid range.*/
- IEEE802154_INVALID_PARAMETER = 0xe8,
- /* No acknowledgment was received after aMaxFrameRetries. */
- IEEE802154_NO_ACK = 0xe9,
- /* A scan operation failed to find any network beacons.*/
- IEEE802154_NO_BEACON = 0xea,
- /* No response data were available following a request. */
- IEEE802154_NO_DATA = 0xeb,
- /* The operation failed because a short address was not allocated. */
- IEEE802154_NO_SHORT_ADDRESS = 0xec,
- /*
- * A receiver enable request was unsuccessful because it could not be
- * completed within the CAP.
- */
- IEEE802154_OUT_OF_CAP = 0xed,
- /*
- * A PAN identifier conflict has been detected and communicated to the
- * PAN coordinator.
- */
- IEEE802154_PANID_CONFLICT = 0xee,
- /* A coordinator realignment command has been received. */
- IEEE802154_REALIGMENT = 0xef,
- /* The transaction has expired and its information discarded. */
- IEEE802154_TRANSACTION_EXPIRED = 0xf0,
- /* There is no capacity to store the transaction. */
- IEEE802154_TRANSACTION_OVERFLOW = 0xf1,
- /*
- * The transceiver was in the transmitter enabled state when the
- * receiver was requested to be enabled.
- */
- IEEE802154_TX_ACTIVE = 0xf2,
- /* The appropriate key is not available in the ACL. */
- IEEE802154_UNAVAILABLE_KEY = 0xf3,
- /*
- * A SET/GET request was issued with the identifier of a PIB attribute
- * that is not supported.
- */
- IEEE802154_UNSUPPORTED_ATTR = 0xf4,
- /*
- * A request to perform a scan operation failed because the MLME was
- * in the process of performing a previously initiated scan operation.
- */
- IEEE802154_SCAN_IN_PROGRESS = 0xfc,
-};
-
-
-#endif
-
-
diff --git a/include/net/ieee802154_netdev.h b/include/net/ieee802154_netdev.h
index f87420689d70..5e62d758eea5 100644
--- a/include/net/ieee802154_netdev.h
+++ b/include/net/ieee802154_netdev.h
@@ -23,10 +23,10 @@
#ifndef IEEE802154_NETDEVICE_H
#define IEEE802154_NETDEVICE_H
-#include <net/ieee802154.h>
#include <net/af_ieee802154.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
+#include <linux/ieee802154.h>
struct ieee802154_sechdr {
#if defined(__LITTLE_ENDIAN_BITFIELD)
--
cgit v1.2.1
From 5a50439775853a8d565115edb63a5ab4bb780479 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 25 Oct 2014 17:16:34 +0200
Subject: ieee802154: rename ieee802154_dev to ieee802154_hw
The identical struct of the wireless stack implementation is named
ieee80211_hw. This is useful to name the variable hw instead of get
confusing with netdev dev variable.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 44 ++++++++++++++++++++++----------------------
1 file changed, 22 insertions(+), 22 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 70351de3a72c..eb0e1cb9ca98 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -52,7 +52,7 @@ struct ieee802154_hw_addr_filt {
u8 pan_coord;
};
-struct ieee802154_dev {
+struct ieee802154_hw {
/* filled by the driver */
int extra_tx_headroom;
u32 flags;
@@ -159,37 +159,37 @@ struct ieee802154_dev {
*/
struct ieee802154_ops {
struct module *owner;
- int (*start)(struct ieee802154_dev *dev);
- void (*stop)(struct ieee802154_dev *dev);
- int (*xmit)(struct ieee802154_dev *dev,
+ int (*start)(struct ieee802154_hw *hw);
+ void (*stop)(struct ieee802154_hw *hw);
+ int (*xmit)(struct ieee802154_hw *hw,
struct sk_buff *skb);
- int (*ed)(struct ieee802154_dev *dev, u8 *level);
- int (*set_channel)(struct ieee802154_dev *dev,
+ int (*ed)(struct ieee802154_hw *hw, u8 *level);
+ int (*set_channel)(struct ieee802154_hw *hw,
int page,
int channel);
- int (*set_hw_addr_filt)(struct ieee802154_dev *dev,
- struct ieee802154_hw_addr_filt *filt,
+ int (*set_hw_addr_filt)(struct ieee802154_hw *hw,
+ struct ieee802154_hw_addr_filt *filt,
unsigned long changed);
- int (*ieee_addr)(struct ieee802154_dev *dev, __le64 addr);
- int (*set_txpower)(struct ieee802154_dev *dev, int db);
- int (*set_lbt)(struct ieee802154_dev *dev, bool on);
- int (*set_cca_mode)(struct ieee802154_dev *dev, u8 mode);
- int (*set_cca_ed_level)(struct ieee802154_dev *dev,
+ int (*ieee_addr)(struct ieee802154_hw *hw, __le64 addr);
+ int (*set_txpower)(struct ieee802154_hw *hw, int db);
+ int (*set_lbt)(struct ieee802154_hw *hw, bool on);
+ int (*set_cca_mode)(struct ieee802154_hw *hw, u8 mode);
+ int (*set_cca_ed_level)(struct ieee802154_hw *hw,
s32 level);
- int (*set_csma_params)(struct ieee802154_dev *dev,
+ int (*set_csma_params)(struct ieee802154_hw *hw,
u8 min_be, u8 max_be, u8 retries);
- int (*set_frame_retries)(struct ieee802154_dev *dev,
+ int (*set_frame_retries)(struct ieee802154_hw *hw,
s8 retries);
};
-/* Basic interface to register ieee802154 device */
-struct ieee802154_dev *
-ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops);
-void ieee802154_free_device(struct ieee802154_dev *dev);
-int ieee802154_register_device(struct ieee802154_dev *dev);
-void ieee802154_unregister_device(struct ieee802154_dev *dev);
+/* Basic interface to register ieee802154 hwice */
+struct ieee802154_hw *
+ieee802154_alloc_hw(size_t priv_data_len, struct ieee802154_ops *ops);
+void ieee802154_free_hw(struct ieee802154_hw *hw);
+int ieee802154_register_hw(struct ieee802154_hw *hw);
+void ieee802154_unregister_hw(struct ieee802154_hw *hw);
-void ieee802154_rx_irqsafe(struct ieee802154_dev *dev, struct sk_buff *skb,
+void ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb,
u8 lqi);
#endif /* NET_MAC802154_H */
--
cgit v1.2.1
From c6f635faf3bca66cf73f6b3319a054959e367b19 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 25 Oct 2014 17:16:42 +0200
Subject: mac802154: remove ieee802154_addr from driver_ops
This driver_ops callback function is never used by any driver.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index eb0e1cb9ca98..b07d431c0b19 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -170,7 +170,6 @@ struct ieee802154_ops {
int (*set_hw_addr_filt)(struct ieee802154_hw *hw,
struct ieee802154_hw_addr_filt *filt,
unsigned long changed);
- int (*ieee_addr)(struct ieee802154_hw *hw, __le64 addr);
int (*set_txpower)(struct ieee802154_hw *hw, int db);
int (*set_lbt)(struct ieee802154_hw *hw, bool on);
int (*set_cca_mode)(struct ieee802154_hw *hw, u8 mode);
--
cgit v1.2.1
From dc67c6b30f36d57b70b70547a30e7a8432540c6f Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 26 Oct 2014 09:37:04 +0100
Subject: mac802154: tx: remove xmit channel context switch
This patch removes the channel hopping feature before xmit. There are
several issues to provide a real channel hopping (timing requirements,
etc...).
We don't have any known kernelspace protocol which really use this
feature. And I don't know an real user of this feature.
We simply drop this feature now.
This patch removes also the hold of pib lock which isn't needed by any
real driver xmit callback implementation.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index b07d431c0b19..ba8ddff70bb6 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -113,8 +113,7 @@ struct ieee802154_hw {
* skb cntains the buffer starting from the IEEE 802.15.4 header.
* The low-level driver should send the frame based on available
* configuration.
- * This function should return zero or negative errno. Called with
- * pib_lock held.
+ * This function should return zero or negative errno.
*
* ed: Handler that 802.15.4 module calls for Energy Detection.
* This function should place the value for detected energy
--
cgit v1.2.1
From c20851035126cc1d97c337083f98b797eed155a3 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 26 Oct 2014 09:37:05 +0100
Subject: mac802154: add netdev qeue helpers
This patch adds a new file net/mac802154/util.c which contains utility
functions for drivers, etc. This file contains functions to start and
stop queues for all virtual interfaces, this is useful for asynchronous
handling by driver level.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index ba8ddff70bb6..29af5c346ebf 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -190,4 +190,8 @@ void ieee802154_unregister_hw(struct ieee802154_hw *hw);
void ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb,
u8 lqi);
+void ieee802154_wake_queue(struct ieee802154_hw *hw);
+void ieee802154_stop_queue(struct ieee802154_hw *hw);
+void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb);
+
#endif /* NET_MAC802154_H */
--
cgit v1.2.1
From ed0a5dce0c29f30ee53a87793206156cf38ae70d Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 26 Oct 2014 09:37:08 +0100
Subject: mac802154: tx: add support for xmit_async callback
This patch renames the existsing xmit callback to xmit_sync and
introduces an asynchronous xmit_async function. If ieee802154_ops
doesn't provide the xmit_async callback, then we have a fallback to
the xmit_sync callback.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 29af5c346ebf..57b120281afc 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -109,7 +109,16 @@ struct ieee802154_hw {
* stop: Handler that 802.15.4 module calls for device cleanup.
* This function is called after the last interface is removed.
*
- * xmit: Handler that 802.15.4 module calls for each transmitted frame.
+ * xmit_sync:
+ * Handler that 802.15.4 module calls for each transmitted frame.
+ * skb cntains the buffer starting from the IEEE 802.15.4 header.
+ * The low-level driver should send the frame based on available
+ * configuration. This is called by a workqueue and useful for
+ * synchronous 802.15.4 drivers.
+ * This function should return zero or negative errno.
+ *
+ * xmit_async:
+ * Handler that 802.15.4 module calls for each transmitted frame.
* skb cntains the buffer starting from the IEEE 802.15.4 header.
* The low-level driver should send the frame based on available
* configuration.
@@ -160,8 +169,10 @@ struct ieee802154_ops {
struct module *owner;
int (*start)(struct ieee802154_hw *hw);
void (*stop)(struct ieee802154_hw *hw);
- int (*xmit)(struct ieee802154_hw *hw,
- struct sk_buff *skb);
+ int (*xmit_sync)(struct ieee802154_hw *hw,
+ struct sk_buff *skb);
+ int (*xmit_async)(struct ieee802154_hw *hw,
+ struct sk_buff *skb);
int (*ed)(struct ieee802154_hw *hw, u8 *level);
int (*set_channel)(struct ieee802154_hw *hw,
int page,
--
cgit v1.2.1
From 1e7283a271afcd45713f2813c97de300565a0dd7 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 26 Oct 2014 09:37:14 +0100
Subject: mac802154: tx: add comment at sync xmit callback
This patch adds a warning that xmit_sync callback is deprecated and
should be removed soon. The 802.15.4 subsystem will not accept synced
drivers anymore.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 57b120281afc..942dd53d4658 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -117,6 +117,10 @@ struct ieee802154_hw {
* synchronous 802.15.4 drivers.
* This function should return zero or negative errno.
*
+ * WARNING:
+ * This will be deprecated soon. We don't accept synced xmit callbacks
+ * drivers anymore.
+ *
* xmit_async:
* Handler that 802.15.4 module calls for each transmitted frame.
* skb cntains the buffer starting from the IEEE 802.15.4 header.
--
cgit v1.2.1
From 1998d90ad424c1ff12ea24816ce158d5262e06a5 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 22 Oct 2014 12:23:00 -0700
Subject: cfg80211: support creating wiphy with suggested name
Kernel will attempt to use the name if it is supplied,
but if name cannot be used for some reason, the default
phyX name will be used instead.
Signed-off-by: Ben Greear <greearb@candelatech.com>
[while at it, use wiphy_name() instead of dev_name(),
fix format string issue reported by Kees Cook]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 77aa805d7e7c..39d7996b0609 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3184,6 +3184,23 @@ static inline const char *wiphy_name(const struct wiphy *wiphy)
return dev_name(&wiphy->dev);
}
+/**
+ * wiphy_new_nm - create a new wiphy for use with cfg80211
+ *
+ * @ops: The configuration operations for this device
+ * @sizeof_priv: The size of the private area to allocate
+ * @requested_name: Request a particular name.
+ * NULL is valid value, and means use the default phy%d naming.
+ *
+ * Create a new wiphy and associate the given operations with it.
+ * @sizeof_priv bytes are allocated for private use.
+ *
+ * Return: A pointer to the new wiphy. This pointer must be
+ * assigned to each netdev's ieee80211_ptr for proper operation.
+ */
+struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
+ const char *requested_name);
+
/**
* wiphy_new - create a new wiphy for use with cfg80211
*
@@ -3196,7 +3213,11 @@ static inline const char *wiphy_name(const struct wiphy *wiphy)
* Return: A pointer to the new wiphy. This pointer must be
* assigned to each netdev's ieee80211_ptr for proper operation.
*/
-struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);
+static inline struct wiphy *wiphy_new(const struct cfg80211_ops *ops,
+ int sizeof_priv)
+{
+ return wiphy_new_nm(ops, sizeof_priv, NULL);
+}
/**
* wiphy_register - register a wiphy with cfg80211
--
cgit v1.2.1
From ad28757eef268e609677d0e3d8c0bdadde52a711 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 22 Oct 2014 12:23:01 -0700
Subject: mac80211: allow creating wiphy devices with suggested name
Support creating wiphy devices with an optional name.
This will be used by hwsim to have better automated control
over virtual radio creation/deletion.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 28 ++++++++++++++++++++++++++--
1 file changed, 26 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 2b7426a90ff0..bb50e8beec0e 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3063,7 +3063,7 @@ struct ieee80211_ops {
};
/**
- * ieee80211_alloc_hw - Allocate a new hardware device
+ * ieee80211_alloc_hw_nm - Allocate a new hardware device
*
* This must be called once for each hardware device. The returned pointer
* must be used to refer to this device when calling other functions.
@@ -3073,11 +3073,35 @@ struct ieee80211_ops {
*
* @priv_data_len: length of private data
* @ops: callbacks for this device
+ * @requested_name: Requested name for this device.
+ * NULL is valid value, and means use the default naming (phy%d)
*
* Return: A pointer to the new hardware device, or %NULL on error.
*/
+struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
+ const struct ieee80211_ops *ops,
+ const char *requested_name);
+
+/**
+ * ieee80211_alloc_hw - Allocate a new hardware device
+ *
+ * This must be called once for each hardware device. The returned pointer
+ * must be used to refer to this device when calling other functions.
+ * mac80211 allocates a private data area for the driver pointed to by
+ * @priv in &struct ieee80211_hw, the size of this area is given as
+ * @priv_data_len.
+ *
+ * @priv_data_len: length of private data
+ * @ops: callbacks for this device
+ *
+ * Return: A pointer to the new hardware device, or %NULL on error.
+ */
+static inline
struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
- const struct ieee80211_ops *ops);
+ const struct ieee80211_ops *ops)
+{
+ return ieee80211_alloc_hw_nm(priv_data_len, ops, NULL);
+}
/**
* ieee80211_register_hw - Register hardware device
--
cgit v1.2.1
From e27513fbd030d8558cfa9250bd62b2baf19dc114 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 22 Oct 2014 12:23:03 -0700
Subject: mac80211: support creating wiphy w/out creating wlanX
This will be helpful when using the mac80211_hwsim
wiphys and automated testing. Let user create the
vifs as needed, and named as expected.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index bb50e8beec0e..1614b2fc3bf6 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1583,6 +1583,10 @@ struct ieee80211_tx_control {
* a virtual monitor interface when monitor interfaces are the only
* active interfaces.
*
+ * @IEEE80211_HW_NO_AUTO_VIF: The driver would like for no wlanX to
+ * be created. It is expected user-space will create vifs as
+ * desired (and thus have them named as desired).
+ *
* @IEEE80211_HW_QUEUE_CONTROL: The driver wants to control per-interface
* queue mapping in order to use different queues (not just one per AC)
* for different virtual interfaces. See the doc section on HW queue
@@ -1629,7 +1633,8 @@ enum ieee80211_hw_flags {
IEEE80211_HW_SUPPORTS_DYNAMIC_PS = 1<<12,
IEEE80211_HW_MFP_CAPABLE = 1<<13,
IEEE80211_HW_WANT_MONITOR_VIF = 1<<14,
- /* free slots */
+ IEEE80211_HW_NO_AUTO_VIF = 1<<15,
+ /* free slot */
IEEE80211_HW_SUPPORTS_UAPSD = 1<<17,
IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18,
IEEE80211_HW_CONNECTION_MONITOR = 1<<19,
--
cgit v1.2.1
From e8f479b11268af3f206d1580f6b0d572d6ecb4f7 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 22 Oct 2014 12:23:05 -0700
Subject: cfg80211: support configuring vif mac addr on create
This is useful when creating virtual interfaces.
Keeps udev from mucking with things it shouldn't, since
the default MAC is never seen by udev when specified on
the cmd-line during creation.
Signed-off-by: Ben Greear <greearb@candelatech.com>
[check for feature flag in nl80211 to force drivers to set it]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 9 ++++++---
include/uapi/linux/nl80211.h | 4 ++++
2 files changed, 10 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 39d7996b0609..f67948e18600 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -319,9 +319,12 @@ struct ieee80211_supported_band {
/**
* struct vif_params - describes virtual interface parameters
* @use_4addr: use 4-address frames
- * @macaddr: address to use for this virtual interface. This will only
- * be used for non-netdevice interfaces. If this parameter is set
- * to zero address the driver may determine the address as needed.
+ * @macaddr: address to use for this virtual interface.
+ * If this parameter is set to zero address the driver may
+ * determine the address as needed.
+ * This feature is only fully supported by drivers that enable the
+ * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating
+ ** only p2p devices with specified MAC.
*/
struct vif_params {
int use_4addr;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index be1d5def304d..f7daae59248e 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4056,6 +4056,9 @@ enum nl80211_ap_sme_features {
* TSPEC sessions (TID aka TSID 0-7) with the %NL80211_CMD_ADD_TX_TS
* command. Standard IEEE 802.11 TSPEC setup is not yet supported, it
* needs to be able to handle Block-Ack agreements and other things.
+ * @NL80211_FEATURE_MAC_ON_CREATE: Device supports configuring
+ * the vif's MAC address upon creation.
+ * See 'macaddr' field in the vif_params (cfg80211.h).
*/
enum nl80211_feature_flags {
NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
@@ -4085,6 +4088,7 @@ enum nl80211_feature_flags {
NL80211_FEATURE_STATIC_SMPS = 1 << 24,
NL80211_FEATURE_DYNAMIC_SMPS = 1 << 25,
NL80211_FEATURE_SUPPORTS_WMM_ADMISSION = 1 << 26,
+ NL80211_FEATURE_MAC_ON_CREATE = 1 << 27,
};
/**
--
cgit v1.2.1
From dda02fd6278d9e995850b3c1dba484f17cbe4de4 Mon Sep 17 00:00:00 2001
From: Weijie Yang <weijie.yang@samsung.com>
Date: Fri, 24 Oct 2014 17:47:57 +0800
Subject: mm, cma: make parameters order consistent in func declaration and
definition
In the current code, the base and size parameters order is not consistent
in functions declaration and definition. If someone calls these functions
according to the declaration parameters order in cma.h, he will run into
some bug and it's hard to find the reason.
This patch makes the parameters order consistent in functions declaration
and definition.
Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
include/linux/cma.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/cma.h b/include/linux/cma.h
index 0430ed05d3b9..a93438beb33c 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -18,12 +18,12 @@ struct cma;
extern phys_addr_t cma_get_base(struct cma *cma);
extern unsigned long cma_get_size(struct cma *cma);
-extern int __init cma_declare_contiguous(phys_addr_t size,
- phys_addr_t base, phys_addr_t limit,
+extern int __init cma_declare_contiguous(phys_addr_t base,
+ phys_addr_t size, phys_addr_t limit,
phys_addr_t alignment, unsigned int order_per_bit,
bool fixed, struct cma **res_cma);
-extern int cma_init_reserved_mem(phys_addr_t size,
- phys_addr_t base, int order_per_bit,
+extern int cma_init_reserved_mem(phys_addr_t base,
+ phys_addr_t size, int order_per_bit,
struct cma **res_cma);
extern struct page *cma_alloc(struct cma *cma, int count, unsigned int align);
extern bool cma_release(struct cma *cma, struct page *pages, int count);
--
cgit v1.2.1
From 593befa6ab74a805e4f503c8c737c3cffa8066b6 Mon Sep 17 00:00:00 2001
From: Dominik Dingel <dingel@linux.vnet.ibm.com>
Date: Thu, 23 Oct 2014 12:07:44 +0200
Subject: mm: introduce mm_forbids_zeropage function
Add a new function stub to allow architectures to disable for
an mm_structthe backing of non-present, anonymous pages with
read-only empty zero pages.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
include/linux/mm.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 27eb1bfbe704..ab7dadca4ea5 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -56,6 +56,17 @@ extern int sysctl_legacy_va_layout;
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
#endif
+/*
+ * To prevent common memory management code establishing
+ * a zero page mapping on a read fault.
+ * This macro should be defined within <asm/pgtable.h>.
+ * s390 does this to prevent multiplexing of hardware bits
+ * related to the physical page in case of virtualization.
+ */
+#ifndef mm_forbids_zeropage
+#define mm_forbids_zeropage(X) (0)
+#endif
+
extern unsigned long sysctl_user_reserve_kbytes;
extern unsigned long sysctl_admin_reserve_kbytes;
--
cgit v1.2.1
From f7f242ff004499e0904d3664713dfba01f24c408 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 15 Oct 2014 12:17:34 +0200
Subject: kprobes: introduce weak arch_check_ftrace_location() helper function
Introduce weak arch_check_ftrace_location() helper function which
architectures can override in order to implement handling of kprobes
on function tracer call sites on their own, without depending on
common code or implementing the KPROBES_ON_FTRACE feature.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
include/linux/kprobes.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index f7296e57d614..5297f9fa0ef2 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -335,6 +335,7 @@ extern void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
extern int arch_prepare_kprobe_ftrace(struct kprobe *p);
#endif
+int arch_check_ftrace_location(struct kprobe *p);
/* Get the kprobe at this addr (if any) - called with preemption disabled */
struct kprobe *get_kprobe(void *addr);
--
cgit v1.2.1
From fcbe08d66f57c368e77ca729dd01e6b539ffb3ff Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 24 Oct 2014 10:52:29 +0200
Subject: s390/mm: pmdp_get_and_clear_full optimization
Analog to ptep_get_and_clear_full define a variant of the
pmpd_get_and_clear primitive which gets the full hint from the
mmu_gather struct. This allows s390 to avoid a costly instruction
when destroying an address space.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
include/asm-generic/pgtable.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 752e30d63904..177d5973b132 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -103,6 +103,17 @@ static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#endif
+#ifndef __HAVE_ARCH_PMDP_GET_AND_CLEAR_FULL
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static inline pmd_t pmdp_get_and_clear_full(struct mm_struct *mm,
+ unsigned long address, pmd_t *pmdp,
+ int full)
+{
+ return pmdp_get_and_clear(mm, address, pmdp);
+}
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+#endif
+
#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm,
unsigned long address, pte_t *ptep,
--
cgit v1.2.1
From f8b361768ea2eaf9b21dfbe7388958ec31798c8b Mon Sep 17 00:00:00 2001
From: Martin Townsend <mtownsend1973@gmail.com>
Date: Thu, 23 Oct 2014 15:40:53 +0100
Subject: 6lowpan: remove skb_deliver from IPHC
Separating skb delivery from decompression ensures that we can support further
decompression schemes and removes the mixed return value of error codes with
NET_RX_FOO.
Signed-off-by: Martin Townsend <mtownsend1973@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/6lowpan.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/6lowpan.h b/include/net/6lowpan.h
index d184df1d0d41..abfa3593e911 100644
--- a/include/net/6lowpan.h
+++ b/include/net/6lowpan.h
@@ -372,12 +372,10 @@ lowpan_uncompress_size(const struct sk_buff *skb, u16 *dgram_offset)
return skb->len + uncomp_header - ret;
}
-typedef int (*skb_delivery_cb)(struct sk_buff *skb, struct net_device *dev);
-
int lowpan_process_data(struct sk_buff *skb, struct net_device *dev,
const u8 *saddr, const u8 saddr_type, const u8 saddr_len,
const u8 *daddr, const u8 daddr_type, const u8 daddr_len,
- u8 iphc0, u8 iphc1, skb_delivery_cb skb_deliver);
+ u8 iphc0, u8 iphc1);
int lowpan_header_compress(struct sk_buff *skb, struct net_device *dev,
unsigned short type, const void *_daddr,
const void *_saddr, unsigned int len);
--
cgit v1.2.1
From 01141234f237957ec962dda2f1ca89d9ef180884 Mon Sep 17 00:00:00 2001
From: Martin Townsend <mtownsend1973@gmail.com>
Date: Thu, 23 Oct 2014 15:40:56 +0100
Subject: ieee802154: 6lowpan: rename process_data and lowpan_process_data
As we have decouple decompression from data delivery we can now rename all
occurences of process_data in receive path.
Signed-off-by: Martin Townsend <mtownsend1973@gmail.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/6lowpan.h | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/6lowpan.h b/include/net/6lowpan.h
index abfa3593e911..dc03d77ad23b 100644
--- a/include/net/6lowpan.h
+++ b/include/net/6lowpan.h
@@ -372,10 +372,12 @@ lowpan_uncompress_size(const struct sk_buff *skb, u16 *dgram_offset)
return skb->len + uncomp_header - ret;
}
-int lowpan_process_data(struct sk_buff *skb, struct net_device *dev,
- const u8 *saddr, const u8 saddr_type, const u8 saddr_len,
- const u8 *daddr, const u8 daddr_type, const u8 daddr_len,
- u8 iphc0, u8 iphc1);
+int
+lowpan_header_decompress(struct sk_buff *skb, struct net_device *dev,
+ const u8 *saddr, const u8 saddr_type,
+ const u8 saddr_len, const u8 *daddr,
+ const u8 daddr_type, const u8 daddr_len,
+ u8 iphc0, u8 iphc1);
int lowpan_header_compress(struct sk_buff *skb, struct net_device *dev,
unsigned short type, const void *_daddr,
const void *_saddr, unsigned int len);
--
cgit v1.2.1
From 344736f29b359790facd0b7a521e367f1715c11c Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@parallels.com>
Date: Mon, 20 Oct 2014 15:50:30 +0400
Subject: cpuset: simplify cpuset_node_allowed API
Current cpuset API for checking if a zone/node is allowed to allocate
from looks rather awkward. We have hardwall and softwall versions of
cpuset_node_allowed with the softwall version doing literally the same
as the hardwall version if __GFP_HARDWALL is passed to it in gfp flags.
If it isn't, the softwall version may check the given node against the
enclosing hardwall cpuset, which it needs to take the callback lock to
do.
Such a distinction was introduced by commit 02a0e53d8227 ("cpuset:
rework cpuset_zone_allowed api"). Before, we had the only version with
the __GFP_HARDWALL flag determining its behavior. The purpose of the
commit was to avoid sleep-in-atomic bugs when someone would mistakenly
call the function without the __GFP_HARDWALL flag for an atomic
allocation. The suffixes introduced were intended to make the callers
think before using the function.
However, since the callback lock was converted from mutex to spinlock by
the previous patch, the softwall check function cannot sleep, and these
precautions are no longer necessary.
So let's simplify the API back to the single check.
Suggested-by: David Rientjes <rientjes@google.com>
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/cpuset.h | 37 +++++++------------------------------
1 file changed, 7 insertions(+), 30 deletions(-)
(limited to 'include')
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 2f073db7392e..1b357997cac5 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -48,29 +48,16 @@ extern nodemask_t cpuset_mems_allowed(struct task_struct *p);
void cpuset_init_current_mems_allowed(void);
int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask);
-extern int __cpuset_node_allowed_softwall(int node, gfp_t gfp_mask);
-extern int __cpuset_node_allowed_hardwall(int node, gfp_t gfp_mask);
+extern int __cpuset_node_allowed(int node, gfp_t gfp_mask);
-static inline int cpuset_node_allowed_softwall(int node, gfp_t gfp_mask)
+static inline int cpuset_node_allowed(int node, gfp_t gfp_mask)
{
- return nr_cpusets() <= 1 ||
- __cpuset_node_allowed_softwall(node, gfp_mask);
+ return nr_cpusets() <= 1 || __cpuset_node_allowed(node, gfp_mask);
}
-static inline int cpuset_node_allowed_hardwall(int node, gfp_t gfp_mask)
+static inline int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask)
{
- return nr_cpusets() <= 1 ||
- __cpuset_node_allowed_hardwall(node, gfp_mask);
-}
-
-static inline int cpuset_zone_allowed_softwall(struct zone *z, gfp_t gfp_mask)
-{
- return cpuset_node_allowed_softwall(zone_to_nid(z), gfp_mask);
-}
-
-static inline int cpuset_zone_allowed_hardwall(struct zone *z, gfp_t gfp_mask)
-{
- return cpuset_node_allowed_hardwall(zone_to_nid(z), gfp_mask);
+ return cpuset_node_allowed(zone_to_nid(z), gfp_mask);
}
extern int cpuset_mems_allowed_intersects(const struct task_struct *tsk1,
@@ -179,22 +166,12 @@ static inline int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask)
return 1;
}
-static inline int cpuset_node_allowed_softwall(int node, gfp_t gfp_mask)
-{
- return 1;
-}
-
-static inline int cpuset_node_allowed_hardwall(int node, gfp_t gfp_mask)
-{
- return 1;
-}
-
-static inline int cpuset_zone_allowed_softwall(struct zone *z, gfp_t gfp_mask)
+static inline int cpuset_node_allowed(int node, gfp_t gfp_mask)
{
return 1;
}
-static inline int cpuset_zone_allowed_hardwall(struct zone *z, gfp_t gfp_mask)
+static inline int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask)
{
return 1;
}
--
cgit v1.2.1
From c5c47e67bcd24638a059b1b5e9ec18c95f8634ca Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 27 Oct 2014 17:13:30 +0100
Subject: mac802154: rx: use tasklet instead workqueue
Tasklets have much less overhead than workqueues. This patch also
removes the heap allocation for the worker on receiving path.
Like mac80211 we should prefer use a tasklet here instead a workqueue to
getting fast out of interrupt context when ieee802154_rx_irqsafe is
called by driver. Like wireless inside the tasklet context we should
call netif_receive_skb instead netif_rx_ni anymore.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 942dd53d4658..4c4642ef244f 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -202,6 +202,7 @@ void ieee802154_free_hw(struct ieee802154_hw *hw);
int ieee802154_register_hw(struct ieee802154_hw *hw);
void ieee802154_unregister_hw(struct ieee802154_hw *hw);
+void ieee802154_rx(struct ieee802154_hw *hw, struct sk_buff *skb);
void ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb,
u8 lqi);
--
cgit v1.2.1
From fa491001e4edae5ed68a562b61ed729968a3ca1c Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 27 Oct 2014 17:13:40 +0100
Subject: ieee802154: add valid psdu length helper
This patch adds a generic valid psdu length check function helper. This
is useful to check the length field after receiving. For example the
at86rf231 doesn't filter invalid psdu length. Sometimes the CRC can also
be correct. If we get the lqi value with an invalid frame length the
kernel may crash because we dereference an invalid pointer in the
receive buffer.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index 2dfab2db103a..6e50a2a1d485 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -23,7 +23,10 @@
#ifndef LINUX_IEEE802154_H
#define LINUX_IEEE802154_H
+#include <linux/types.h>
+
#define IEEE802154_MTU 127
+#define IEEE802154_MIN_PSDU_LEN 5
#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
#define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */
@@ -185,5 +188,13 @@ enum {
IEEE802154_SCAN_IN_PROGRESS = 0xfc,
};
+/**
+ * ieee802154_is_valid_psdu_len - check if psdu len is valid
+ * @len: psdu len with (MHR + payload + MFR)
+ */
+static inline bool ieee802154_is_valid_psdu_len(const u8 len)
+{
+ return (len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU);
+}
#endif /* LINUX_IEEE802154_H */
--
cgit v1.2.1
From a59dadbeeaf7d33f2e92dbf5a290965d6df64162 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 25 Oct 2014 17:19:33 +0200
Subject: ath9k: add support for endian swap of eeprom from platform data
On some devices (especially little-endian ones), the flash EEPROM data
has a different endian, which needs to be detected.
Add a flag to the platform data to allow overriding that behavior
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/ath9k_platform.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/ath9k_platform.h b/include/linux/ath9k_platform.h
index a495a959e8a7..43501657bce9 100644
--- a/include/linux/ath9k_platform.h
+++ b/include/linux/ath9k_platform.h
@@ -31,6 +31,7 @@ struct ath9k_platform_data {
u32 gpio_mask;
u32 gpio_val;
+ bool endian_check;
bool is_clk_25mhz;
bool tx_gain_buffalo;
--
cgit v1.2.1
From 3468968ef766d7bb4ab29c0ef7ebd169a4ac2e96 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 25 Oct 2014 17:19:34 +0200
Subject: ath9k: allow disabling bands via platform data
Some devices have multiple bands enables in the EEPROM data, even though
they are only calibrated for one. Allow platform data to disable
unsupported bands.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/ath9k_platform.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/ath9k_platform.h b/include/linux/ath9k_platform.h
index 43501657bce9..33eb274cd0e6 100644
--- a/include/linux/ath9k_platform.h
+++ b/include/linux/ath9k_platform.h
@@ -34,6 +34,8 @@ struct ath9k_platform_data {
bool endian_check;
bool is_clk_25mhz;
bool tx_gain_buffalo;
+ bool disable_2ghz;
+ bool disable_5ghz;
int (*get_mac_revision)(void);
int (*external_reset)(void);
--
cgit v1.2.1
From 5e96d788d93b90e6e1769fb9376ee28bcdc1a041 Mon Sep 17 00:00:00 2001
From: Fabian Frederick <fabf@skynet.be>
Date: Mon, 27 Oct 2014 20:00:41 +0100
Subject: ipx: move extern sysctl_ipx_pprop_broadcasting to header file
include ipx.h from sysctl_net_ipx.c
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ipx.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/ipx.h b/include/net/ipx.h
index 0143180fecc9..320f47b64a7a 100644
--- a/include/net/ipx.h
+++ b/include/net/ipx.h
@@ -42,6 +42,9 @@ struct ipxhdr {
struct ipx_address ipx_source __packed;
};
+/* From af_ipx.c */
+extern int sysctl_ipx_pprop_broadcasting;
+
static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb)
{
return (struct ipxhdr *)skb_transport_header(skb);
--
cgit v1.2.1
From 8b13eddfdf04cbfa561725cfc42d6868fe896f56 Mon Sep 17 00:00:00 2001
From: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date: Thu, 16 Oct 2014 12:23:29 +0200
Subject: netfilter: refactor NAT redirect IPv4 to use it from nf_tables
This patch refactors the IPv4 code so it can be usable both from xt and
nf_tables.
A similar patch follows-up to handle IPv6.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv4/nf_nat_redirect.h | 9 +++++++++
1 file changed, 9 insertions(+)
create mode 100644 include/net/netfilter/ipv4/nf_nat_redirect.h
(limited to 'include')
diff --git a/include/net/netfilter/ipv4/nf_nat_redirect.h b/include/net/netfilter/ipv4/nf_nat_redirect.h
new file mode 100644
index 000000000000..19e1df3a0a4d
--- /dev/null
+++ b/include/net/netfilter/ipv4/nf_nat_redirect.h
@@ -0,0 +1,9 @@
+#ifndef _NF_NAT_REDIRECT_IPV4_H_
+#define _NF_NAT_REDIRECT_IPV4_H_
+
+unsigned int
+nf_nat_redirect_ipv4(struct sk_buff *skb,
+ const struct nf_nat_ipv4_multi_range_compat *mr,
+ unsigned int hooknum);
+
+#endif /* _NF_NAT_REDIRECT_IPV4_H_ */
--
cgit v1.2.1
From 9de920eddb74bf67f1d6af603acc5ed05dcd35e9 Mon Sep 17 00:00:00 2001
From: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date: Fri, 17 Oct 2014 12:37:52 +0200
Subject: netfilter: refactor NAT redirect IPv6 code to use it from nf_tables
This patch refactors the IPv6 code so it can be usable both from xt and
nf_tables.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv6/nf_nat_redirect.h | 8 ++++++++
1 file changed, 8 insertions(+)
create mode 100644 include/net/netfilter/ipv6/nf_nat_redirect.h
(limited to 'include')
diff --git a/include/net/netfilter/ipv6/nf_nat_redirect.h b/include/net/netfilter/ipv6/nf_nat_redirect.h
new file mode 100644
index 000000000000..1ebdffc461cc
--- /dev/null
+++ b/include/net/netfilter/ipv6/nf_nat_redirect.h
@@ -0,0 +1,8 @@
+#ifndef _NF_NAT_REDIRECT_IPV6_H_
+#define _NF_NAT_REDIRECT_IPV6_H_
+
+unsigned int
+nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range,
+ unsigned int hooknum);
+
+#endif /* _NF_NAT_REDIRECT_IPV6_H_ */
--
cgit v1.2.1
From e9105f1bead4ec3f64904564c7c6268185d6b363 Mon Sep 17 00:00:00 2001
From: Arturo Borrero <arturo.borrero.glez@gmail.com>
Date: Fri, 17 Oct 2014 12:39:09 +0200
Subject: netfilter: nf_tables: add new expression nft_redir
This new expression provides NAT in the redirect flavour, which is to
redirect packets to local machine.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nft_redir.h | 21 +++++++++++++++++++++
include/uapi/linux/netfilter/nf_tables.h | 16 ++++++++++++++++
2 files changed, 37 insertions(+)
create mode 100644 include/net/netfilter/nft_redir.h
(limited to 'include')
diff --git a/include/net/netfilter/nft_redir.h b/include/net/netfilter/nft_redir.h
new file mode 100644
index 000000000000..a2d67546afab
--- /dev/null
+++ b/include/net/netfilter/nft_redir.h
@@ -0,0 +1,21 @@
+#ifndef _NFT_REDIR_H_
+#define _NFT_REDIR_H_
+
+struct nft_redir {
+ enum nft_registers sreg_proto_min:8;
+ enum nft_registers sreg_proto_max:8;
+ u16 flags;
+};
+
+extern const struct nla_policy nft_redir_policy[];
+
+int nft_redir_init(const struct nft_ctx *ctx,
+ const struct nft_expr *expr,
+ const struct nlattr * const tb[]);
+
+int nft_redir_dump(struct sk_buff *skb, const struct nft_expr *expr);
+
+int nft_redir_validate(const struct nft_ctx *ctx, const struct nft_expr *expr,
+ const struct nft_data **data);
+
+#endif /* _NFT_REDIR_H_ */
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index f31fe7b660a5..16f62a5cf04d 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -837,6 +837,22 @@ enum nft_masq_attributes {
};
#define NFTA_MASQ_MAX (__NFTA_MASQ_MAX - 1)
+/**
+ * enum nft_redir_attributes - nf_tables redirect expression netlink attributes
+ *
+ * @NFTA_REDIR_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
+ * @NFTA_REDIR_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
+ * @NFTA_REDIR_FLAGS: NAT flags (see NF_NAT_RANGE_* in linux/netfilter/nf_nat.h) (NLA_U32)
+ */
+enum nft_redir_attributes {
+ NFTA_REDIR_UNSPEC,
+ NFTA_REDIR_REG_PROTO_MIN,
+ NFTA_REDIR_REG_PROTO_MAX,
+ NFTA_REDIR_FLAGS,
+ __NFTA_REDIR_MAX
+};
+#define NFTA_REDIR_MAX (__NFTA_REDIR_MAX - 1)
+
/**
* enum nft_gen_attributes - nf_tables ruleset generation attributes
*
--
cgit v1.2.1
From 958501163ddd6ea22a98f94fa0e7ce6d4734e5c4 Mon Sep 17 00:00:00 2001
From: Kyeyoon Park <kyeyoonp@codeaurora.org>
Date: Thu, 23 Oct 2014 14:49:17 -0700
Subject: bridge: Add support for IEEE 802.11 Proxy ARP
This feature is defined in IEEE Std 802.11-2012, 10.23.13. It allows
the AP devices to keep track of the hardware-address-to-IP-address
mapping of the mobile devices within the WLAN network.
The AP will learn this mapping via observing DHCP, ARP, and NS/NA
frames. When a request for such information is made (i.e. ARP request,
Neighbor Solicitation), the AP will respond on behalf of the
associated mobile device. In the process of doing so, the AP will drop
the multicast request frame that was intended to go out to the wireless
medium.
It was recommended at the LKS workshop to do this implementation in
the bridge layer. vxlan.c is already doing something very similar.
The DHCP snooping code will be added to the userspace application
(hostapd) per the recommendation.
This RFC commit is only for IPv4. A similar approach in the bridge
layer will be taken for IPv6 as well.
Signed-off-by: Kyeyoon Park <kyeyoonp@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_link.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 0bdb77e16875..7072d8325016 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -243,6 +243,7 @@ enum {
IFLA_BRPORT_FAST_LEAVE, /* multicast fast leave */
IFLA_BRPORT_LEARNING, /* mac learning */
IFLA_BRPORT_UNICAST_FLOOD, /* flood unicast traffic */
+ IFLA_BRPORT_PROXYARP, /* proxy ARP */
__IFLA_BRPORT_MAX
};
#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
--
cgit v1.2.1
From 6dd98b0a3e58b7b48a422802b5610b95ef5128eb Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 25 Oct 2014 17:41:59 +0200
Subject: ASoC: dapm: Introduce toplevel widget categories
DAPM widgets can be classified into four categories:
* supply: Supply widgets do not affect the power state of their
non-supply widget neighbors and unlike other widgets a
supply widget is not powered up when it is on an active
path, but when at least on of its neighbors is powered up.
* source: A source is a widget that receives data from outside the
DAPM graph or generates data. This can for example be a
microphone, the playback DMA or a signal generator. A source
widget will be considered powered up if there is an active
path to a sink widget.
* sink: A sink is a widget that transmits data to somewhere outside
of the DAPM graph. This can e.g. be a speaker or the capture
DMA. A sink widget will be considered powered up if there is
an active path from a source widget.
* normal: Normal widgets are widgets not covered by the categories
above. A normal widget will be considered powered up if it
is on an active path between a source widget and a sink
widget.
The way the number of input and output paths for a widget is calculated
depends on its category. There are a bunch of factors which decide which
category a widget is. Currently there is no formal classification of these
categories and we calculate the category of the widget based on these
factors whenever we want to know it. This is at least once for every widget
during each power update sequence. The factors which determine the category
of the widgets are mostly static though and if at all change rather seldom.
This patch introduces three new per widget flags, one for each of non-normal
widgets categories. Instead of re-computing the category each time we want
to know them the flags will be checked. For the majority of widgets the
category is solely determined by the widget id, which means it never changes
and only has to be set once when the widget is created. The only widgets
with dynamic categories are:
snd_soc_dapm_dai_out: Is considered a sink iff the capture stream is
active, otherwise normal.
snd_soc_dapm_dai_in: Is considered a source iff the playback stream
is active, otherwise normal.
snd_soc_dapm_input: Is considered a sink iff it has no outgoing
paths, otherwise normal.
snd_soc_dapm_output: Is considered a source iff it has no incoming
paths, otherwise normal.
snd_soc_dapm_line: Is considered a sink iff it has no outgoing paths
and is considered a source iff it has no incoming paths,
otherwise normal.
For snd_soc_dapm_dai_out/snd_soc_dapm_dai_in widgets the category will be
updated when a stream is started or stopped. For the other dynamic widgets
the category will be updated when a path connecting to it is added or
removed.
Introducing those new widget categories allows to make
is_connected_{output,input}_ep, which are among the hottest paths of the
DAPM algorithm, more generic and significantly shorter.
The before and after sizes for is_connected_{output,input}_ep are:
On ARM (defconfig + CONFIG_SND_SOC):
function old new delta
is_connected_output_ep 480 340 -140
is_connected_input_ep 456 352 -104
On amd64 (defconfig + CONFIG_SND_SOC):
function old new delta
is_connected_output_ep 579 427 -152
is_connected_input_ep 563 427 -136
Which is about a 25%-30% decrease, other architectures are expected to have
similar numbers. At the same time the size of the snd_soc_dapm_widget struct
does not change since the new flags are stored in the same word as the
existing flags.
Note: that since the per widget 'ext' flag was only used to decide whether a
snd_soc_dapm_input or snd_soc_dapm_output widget was a source or a sink it
is now unused and can be removed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dapm.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index ebb93f29e4f3..8cf3aad30864 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -543,11 +543,13 @@ struct snd_soc_dapm_widget {
unsigned char active:1; /* active stream on DAC, ADC's */
unsigned char connected:1; /* connected codec pin */
unsigned char new:1; /* cnew complete */
- unsigned char ext:1; /* has external widgets */
unsigned char force:1; /* force state */
unsigned char ignore_suspend:1; /* kept enabled over suspend */
unsigned char new_power:1; /* power from this run */
unsigned char power_checked:1; /* power checked this run */
+ unsigned char is_supply:1; /* Widget is a supply type widget */
+ unsigned char is_sink:1; /* Widget is a sink type widget */
+ unsigned char is_source:1; /* Widget is a source type widget */
int subseq; /* sort within widget type */
int (*power_check)(struct snd_soc_dapm_widget *w);
--
cgit v1.2.1
From c1862c8bae520a8986dd7c47ce33f16eb7c791c2 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 25 Oct 2014 17:42:00 +0200
Subject: ASoC: dapm: Add a flag to mark paths connected to supply widgets
Supply widgets do not count towards the input and output widgets of their
neighbors and for supply widgets themselves we do not care for the number
of input or output paths. This means that a path that connects to a supply
widget effectively behaves the same as a path that as the weak property set.
This patch adds a new path flag that gets set to true when the path is
connected to at least one supply widget. If a path with the flag set is
encountered in is_connected_{input,output}_ep() is is skipped in the same
way that weak paths are skipped. This slightly brings down the number of
path checks.
Since both the weak and the supply flag are implemented as bitfields which
are stored in the same word there is no runtime overhead due to checking
both rather than just one and also the size of the path struct is not
increased by this patch. Another advantage is that we do not have to handle
supply widgets in is_connected_{input,output}_ep() anymore since it will
never be called for supply widgets. The only exception is from
dapm_widget_power_read_file() where a check is added to special case supply
widgets.
Testing with the ADAU1761, which has a handful of supply widgets, shows the
following changes in the DAPM stats for a playback stream start.
Power Path Neighbour
Before: 34 78 117
After: 34 48 117
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dapm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 8cf3aad30864..e7ebeb717482 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -510,6 +510,7 @@ struct snd_soc_dapm_path {
u32 connect:1; /* source and sink widgets are connected */
u32 walking:1; /* path is in the process of being walked */
u32 weak:1; /* path ignored for power management */
+ u32 is_supply:1; /* At least one of the connected widgets is a supply */
int (*connected)(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink);
--
cgit v1.2.1
From 8be4da29cf5b8ec65e974c36e7ae4d90b381ac5e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 25 Oct 2014 17:42:01 +0200
Subject: ASoC: dapm: Mark endpoints instead of IO widgets dirty during
suspend/resume
The state of endpoint widgets is affected by that card's power state.
Endpoint widgets that do no have the ignore_suspend flag set will be
considered inactive during suspend. So they have to be re-checked and marked
dirty after the card's power state changes. Currently the input and output
widgets are marked dirty instead, this works most of the time since
typically a path from one endpoint to another will go via a input or output
widget. But marking the endpoints dirty is technically more correct and will
also work for odd corner cases.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dapm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index e7ebeb717482..43ca1656dab4 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -435,7 +435,7 @@ void snd_soc_dapm_auto_nc_pins(struct snd_soc_card *card);
unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol);
/* Mostly internal - should not normally be used */
-void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm);
+void dapm_mark_endpoints_dirty(struct snd_soc_card *card);
/* dapm path query */
int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
--
cgit v1.2.1
From 92a99ea439c4e27fc6e32eb6d51c5d091c6084bd Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 25 Oct 2014 17:42:03 +0200
Subject: ASoC: dapm: Use more aggressive caching
Currently we cache the number of input and output paths going to/from a
widget only within a power update sequence. But not in between power update
sequences.
But we know how changes to the DAPM graph affect the number of input (form a
source) and output (to a sink) paths of a widget and only need to
recalculate them if a operation has been performed that might have changed
them.
* Adding/removing or connecting/disconnecting a path means that the for
the source of the path the number of output paths can change and for
the sink the number of input paths can change.
* Connecting/disconnecting a widget has the same effect has connecting/
disconnecting all paths of the widget. So for the widget itself the
number of inputs and outputs can change, for all sinks of the widget
the number of inputs can change and for all sources of the widget the
number of outputs can change.
* Activating/Deactivating a stream can either change the number of
outputs on the sources of the widget associated with the stream or the
number of inputs on the sinks.
Instead of always invalidating all cached numbers of input and output paths
for each power up or down sequence this patch restructures the code to only
invalidate the cached numbers when a operation that might change them has
been performed. This can greatly reduce the number of DAPM power checks for
some very common operations.
Since per DAPM operation typically only either change the number of inputs
or outputs the number of path checks is reduced by at least 50%. The number
of neighbor checks is also reduced about the same percentage, but since the
number of neighbors encountered when walking from sink to source is not the
same as when walking from source to sink the actual numbers will slightly
vary from card to card (e.g. for a mixer we see 1 neighbor when walking from
source to sink, but the number of inputs neighbors when walking from source
to sink).
Bigger improvements can be observed for widgets with multiple connected
inputs and output (e.g. mixers probably being the most widespread form of
this). Previously we had to re-calculate the number of inputs and outputs
on all input and output paths. With this change we only have to re-calculate
the number of outputs on the input path that got changed and the number of
inputs on the output paths.
E.g. imagine the following example:
A --> B ----.
v
M --> N --> Z <-- S <-- R
|
v
X
Widget Z has multiple input paths, if any change was made that cause Z to be
marked as dirty the power state of Z has to be re-computed. This requires to
know the number of inputs and outputs of Z, which requires to know the
number of inputs and outputs of all widgets on all paths from or to Z.
Previously this meant re-computing all inputs and outputs of all the path
going into or out of Z. With this patch in place only paths that actually
have changed need to be re-computed.
If the system is idle (or the part of the system affected by the changed
path) the number of path checks drops to either 0 or 1, regardless of how
large or complex the DAPM context is. 0 if there is no connected sink and no
connected source. 1 if there is either a connected source or sink, but not
both. The number of neighbor checks again will scale accordingly and will be
a constant number that is the number of inputs or outputs of the widget for
which we did the path check.
When loading a state file or switching between different profiles typically
multiple mixer and mux settings are changed, so we see the benefit of this
patch multiplied for these kinds of operations.
Testing with the ADAU1761 shows the following changes in DAPM stats for
changing a single Mixer switch for a Mixer with 5 inputs while the DAPM
context is idle.
Power Path Neighbour
Before: 2 12 30
After: 2 1 2
For the same switch, but with a active playback stream the stat changed are
as follows.
Power Path Neighbour
Before: 10 20 54
After: 10 7 21
Cumulative numbers for switching the audio profile which changes 7 controls
while the system is idle:
Power Path Neighbour
Before: 16 80 170
After: 16 7 23
Cumulative numbers for switching the audio profile which changes 7 controls
while playback is active:
Power Path Neighbour
Before: 51 123 273
After: 51 29 109
Starting (or stopping) the playback stream:
Power Path Neighbour
Before: 34 34 117
After: 34 17 69
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dapm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 43ca1656dab4..89823cfe6f04 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -569,6 +569,7 @@ struct snd_soc_dapm_widget {
struct list_head sinks;
/* used during DAPM updates */
+ struct list_head work_list;
struct list_head power_list;
struct list_head dirty;
int inputs;
--
cgit v1.2.1
From c1b4d1c7774189002bc08766ec10e339dfbc98d6 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 25 Oct 2014 20:25:56 +0200
Subject: ASoC: Use generic control handlers for S8 control
Commit f227b88f0fce ("ASoC: core: Add signed register volume control logic")
added support for signed control to the generic volsw control handler.
This makes it possible to use them for the S8 control as well, rather than
having to use a custom control handler implementation.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7ba7130037a0..ad47e9660b22 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -36,6 +36,11 @@
{.reg = xreg, .rreg = xreg, .shift = shift_left, \
.rshift = shift_right, .max = xmax, .platform_max = xmax, \
.invert = xinvert, .autodisable = xautodisable})
+#define SOC_DOUBLE_S_VALUE(xreg, shift_left, shift_right, xmin, xmax, xsign_bit, xinvert, xautodisable) \
+ ((unsigned long)&(struct soc_mixer_control) \
+ {.reg = xreg, .rreg = xreg, .shift = shift_left, \
+ .rshift = shift_right, .min = xmin, .max = xmax, .platform_max = xmax, \
+ .sign_bit = xsign_bit, .invert = xinvert, .autodisable = xautodisable})
#define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \
SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable)
#define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
@@ -171,11 +176,9 @@
.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
SNDRV_CTL_ELEM_ACCESS_READWRITE, \
.tlv.p = (tlv_array), \
- .info = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
- .put = snd_soc_put_volsw_s8, \
- .private_value = (unsigned long)&(struct soc_mixer_control) \
- {.reg = xreg, .min = xmin, .max = xmax, \
- .platform_max = xmax} }
+ .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
+ .put = snd_soc_put_volsw, \
+ .private_value = SOC_DOUBLE_S_VALUE(xreg, 0, 8, xmin, xmax, 7, 0, 0) }
#define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xitems, xtexts) \
{ .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
.items = xitems, .texts = xtexts, \
@@ -545,12 +548,6 @@ int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
-int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *uinfo);
-int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol);
-int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol);
int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo);
int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
--
cgit v1.2.1
From a69d82b9bdf1e53e94423048e8bda8c5f5a3dd4e Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Tue, 7 Oct 2014 17:47:36 +0200
Subject: power_supply: Add no_thermal property to prevent recursive get_temp
calls
Add a 'no_thermal' property to the power supply class. If true then
thermal zone won't be created for this power supply in
power_supply_register().
Power supply drivers may want to set it if they support
POWER_SUPPLY_PROP_TEMP and they are forwarding this get property call to
other thermal zone.
If they won't set it lockdep may report false positive deadlock for
thermal zone's mutex because of nested calls to thermal_zone_get_temp().
First is the call to thermal_zone_get_temp() of the driver's thermal
zone. Thermal core gets POWER_SUPPLY_PROP_TEMP property from this
driver. The driver then calls other thermal zone thermal_zone_get_temp()
and returns result.
Example of such driver is charger manager.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
include/linux/power_supply.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 3ed049673022..096dbced02ac 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -200,6 +200,12 @@ struct power_supply {
void (*external_power_changed)(struct power_supply *psy);
void (*set_charged)(struct power_supply *psy);
+ /*
+ * Set if thermal zone should not be created for this power supply.
+ * For example for virtual supplies forwarding calls to actual
+ * sensors or other supplies.
+ */
+ bool no_thermal;
/* For APM emulation, think legacy userspace. */
int use_for_apm;
--
cgit v1.2.1
From bdbe81445407644492b9ac69a24d35e3202d773b Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Mon, 13 Oct 2014 15:34:30 +0200
Subject: power: charger-manager: Fix accessing invalidated power supply after
fuel gauge unbind
The charger manager obtained reference to fuel gauge power supply in probe
with power_supply_get_by_name() for later usage. However if fuel gauge
driver was removed and re-added then this reference would point to old
power supply (from driver which was removed).
This lead to accessing old (and probably invalid) memory which could be
observed with:
$ echo "12-0036" > /sys/bus/i2c/drivers/max17042/unbind
$ echo "12-0036" > /sys/bus/i2c/drivers/max17042/bind
$ cat /sys/devices/virtual/power_supply/battery/capacity
[ 240.480084] INFO: task cat:1393 blocked for more than 120 seconds.
[ 240.484799] Not tainted 3.17.0-next-20141007-00028-ge60b6dd79570 #203
[ 240.491782] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 240.499589] cat D c0469530 0 1393 1 0x00000000
[ 240.505947] [<c0469530>] (__schedule) from [<c0469d3c>] (schedule_preempt_disabled+0x14/0x20)
[ 240.514449] [<c0469d3c>] (schedule_preempt_disabled) from [<c046af08>] (mutex_lock_nested+0x1bc/0x458)
[ 240.523736] [<c046af08>] (mutex_lock_nested) from [<c0287a98>] (regmap_read+0x30/0x60)
[ 240.531647] [<c0287a98>] (regmap_read) from [<c032238c>] (max17042_get_property+0x2e8/0x350)
[ 240.540055] [<c032238c>] (max17042_get_property) from [<c03247d8>] (charger_get_property+0x264/0x348)
[ 240.549252] [<c03247d8>] (charger_get_property) from [<c0320764>] (power_supply_show_property+0x48/0x1e0)
[ 240.558808] [<c0320764>] (power_supply_show_property) from [<c027308c>] (dev_attr_show+0x1c/0x48)
[ 240.567664] [<c027308c>] (dev_attr_show) from [<c0141fb0>] (sysfs_kf_seq_show+0x84/0x104)
[ 240.575814] [<c0141fb0>] (sysfs_kf_seq_show) from [<c0140b18>] (kernfs_seq_show+0x24/0x28)
[ 240.584061] [<c0140b18>] (kernfs_seq_show) from [<c0104574>] (seq_read+0x1b0/0x484)
[ 240.591702] [<c0104574>] (seq_read) from [<c00e1e24>] (vfs_read+0x88/0x144)
[ 240.598640] [<c00e1e24>] (vfs_read) from [<c00e1f20>] (SyS_read+0x40/0x8c)
[ 240.605507] [<c00e1f20>] (SyS_read) from [<c000e760>] (ret_fast_syscall+0x0/0x48)
[ 240.612952] 4 locks held by cat/1393:
[ 240.616589] #0: (&p->lock){+.+.+.}, at: [<c01043f4>] seq_read+0x30/0x484
[ 240.623414] #1: (&of->mutex){+.+.+.}, at: [<c01417dc>] kernfs_seq_start+0x1c/0x8c
[ 240.631086] #2: (s_active#31){++++.+}, at: [<c01417e4>] kernfs_seq_start+0x24/0x8c
[ 240.638777] #3: (&map->mutex){+.+...}, at: [<c0287a98>] regmap_read+0x30/0x60
The charger-manager should get reference to fuel gauge power supply on
each use of get_property callback. The thermal zone 'tzd' field of
power supply should not be used because of the same reason.
Additionally this change solves also the issue with nested
thermal_zone_get_temp() calls and related false lockdep positive for
deadlock for thermal zone's mutex [1]. When fuel gauge is used as source of
temperature then the charger manager forwards its get_temp calls to fuel
gauge thermal zone. So actually different mutexes are used (one for
charger manager thermal zone and second for fuel gauge thermal zone) but
for lockdep this is one class of mutex.
The recursion is removed by retrieving temperature through power
supply's get_property().
In case external thermal zone is used ('cm-thermal-zone' property is
present in DTS) the recursion does not exist. Charger manager simply
exports POWER_SUPPLY_PROP_TEMP_AMBIENT property (instead of
POWER_SUPPLY_PROP_TEMP) thus no thermal zone is created for this power
supply.
[1] https://lkml.org/lkml/2014/10/6/309
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: 3bb3dbbd56ea ("power_supply: Add initial Charger-Manager driver")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
include/linux/power/charger-manager.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/power/charger-manager.h b/include/linux/power/charger-manager.h
index 07e7945a1ff2..5d90d329e0ba 100644
--- a/include/linux/power/charger-manager.h
+++ b/include/linux/power/charger-manager.h
@@ -253,7 +253,6 @@ struct charger_manager {
struct device *dev;
struct charger_desc *desc;
- struct power_supply *fuel_gauge;
struct power_supply **charger_stat;
#ifdef CONFIG_THERMAL
--
cgit v1.2.1
From cdaf3e15385d3232b52287e50692506f8fd01a09 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Mon, 13 Oct 2014 15:34:31 +0200
Subject: power: charger-manager: Fix accessing invalidated power supply after
charger unbind
The charger manager obtained in probe references to power supplies for
all chargers with power_supply_get_by_name() for later usage. However
if such charger driver was removed then this reference would point to
old power supply (from driver which was removed).
This lead to accessing invalid memory which could be observed with:
$ echo "max77693-charger" > /sys/bus/platform/drivers/max77693-charger/unbind
$ grep . /sys/devices/virtual/power_supply/battery/charger.0/*
$ grep . /sys/devices/virtual/power_supply/battery/*
[ 15.339817] Unable to handle kernel paging request at virtual address 0001c12c
[ 15.346187] pgd = edd08000
[ 15.348814] [0001c12c] *pgd=6dce2831, *pte=00000000, *ppte=00000000
[ 15.355075] Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM
[ 15.360967] Modules linked in:
[ 15.364010] CPU: 2 PID: 1388 Comm: grep Not tainted 3.17.0-next-20141007-00027-ga95e761db1b0 #245
[ 15.372859] task: ee03ad00 ti: edcf6000 task.ti: edcf6000
[ 15.378241] PC is at 0x1c12c
[ 15.381113] LR is at is_ext_pwr_online+0x30/0x6c
[ 15.385706] pc : [<0001c12c>] lr : [<c0339fc4>] psr: a0000013
[ 15.385706] sp : edcf7e88 ip : 00000000 fp : 00000000
[ 15.397161] r10: eeb02c08 r9 : c04b1f84 r8 : eeb02c00
[ 15.402369] r7 : edc69a10 r6 : eea6ac10 r5 : eea6ac10 r4 : 00000004
[ 15.408878] r3 : 0001c12c r2 : edcf7e8c r1 : 00000004 r0 : ee914418
[ 15.415390] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 15.422506] Control: 10c5387d Table: 6dd0804a DAC: 00000015
[ 15.428236] Process grep (pid: 1388, stack limit = 0xedcf6240)
[ 15.434050] Stack: (0xedcf7e88 to 0xedcf8000)
[ 15.438395] 7e80: ee03ad00 00000000 edcf7f80 eea6aca8 edcf7ec4 c033b7b0
[ 15.446554] 7ea0: 00000001 ee1cc3f0 00000004 c06e1e44 eebdc000 c06e1e44 eeb02c00 c0337144
[ 15.454713] 7ec0: ee2dac68 c005cffc ee1cc3c0 c06e1e44 00000fff 00001000 eebdc000 c0278ca8
[ 15.462872] 7ee0: c0278c8c ee1cc3c0 eeb7ce00 c014422c edcf7f20 00008000 ee1cc3c0 ee9a48c0
[ 15.471030] 7f00: 00000001 00000001 edcf7f80 c0142d94 c0142d70 c01060f4 00021000 ee1cc3f0
[ 15.479190] 7f20: 00000000 00000000 c06a2150 eebdc000 2e7ec000 ee9a48c0 00008000 00021000
[ 15.487349] 7f40: edcf7f80 00008000 edcf6000 00021000 00021000 c00e39a4 00000000 ee9a48c0
[ 15.495508] 7f60: 00004000 00000000 00000000 ee9a48c0 ee9a48c0 00008000 00021000 c00e3aa0
[ 15.503668] 7f80: 00000000 00000000 0001f2e0 0001f2e0 00021000 00001000 00000003 c000f364
[ 15.511826] 7fa0: 00000000 c000f1a0 0001f2e0 00021000 00000003 00021000 00008000 00000000
[ 15.519986] 7fc0: 0001f2e0 00021000 00001000 00000003 00000001 000205e8 00000000 00021000
[ 15.528145] 7fe0: 00008000 bebbe910 0000a7ad b6edc49c 60000010 00000003 aaaaaaaa aaaaaaaa
[ 15.536320] [<c0339fc4>] (is_ext_pwr_online) from [<c033b7b0>] (charger_get_property+0x170/0x314)
[ 15.545164] [<c033b7b0>] (charger_get_property) from [<c0337144>] (power_supply_show_property+0x48/0x20c)
[ 15.554719] [<c0337144>] (power_supply_show_property) from [<c0278ca8>] (dev_attr_show+0x1c/0x48)
[ 15.563577] [<c0278ca8>] (dev_attr_show) from [<c014422c>] (sysfs_kf_seq_show+0x84/0x104)
[ 15.571725] [<c014422c>] (sysfs_kf_seq_show) from [<c0142d94>] (kernfs_seq_show+0x24/0x28)
[ 15.579973] [<c0142d94>] (kernfs_seq_show) from [<c01060f4>] (seq_read+0x1b0/0x484)
[ 15.587614] [<c01060f4>] (seq_read) from [<c00e39a4>] (vfs_read+0x88/0x144)
[ 15.594552] [<c00e39a4>] (vfs_read) from [<c00e3aa0>] (SyS_read+0x40/0x8c)
[ 15.601417] [<c00e3aa0>] (SyS_read) from [<c000f1a0>] (ret_fast_syscall+0x0/0x48)
[ 15.608877] Code: bad PC value
[ 15.611991] ---[ end trace a88fcc95208db283 ]---
The charger-manager should get reference to charger power supply on
each use of get_property callback.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: 3bb3dbbd56ea ("power_supply: Add initial Charger-Manager driver")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
include/linux/power/charger-manager.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/power/charger-manager.h b/include/linux/power/charger-manager.h
index 5d90d329e0ba..e97fc656a058 100644
--- a/include/linux/power/charger-manager.h
+++ b/include/linux/power/charger-manager.h
@@ -253,8 +253,6 @@ struct charger_manager {
struct device *dev;
struct charger_desc *desc;
- struct power_supply **charger_stat;
-
#ifdef CONFIG_THERMAL
struct thermal_zone_device *tzd_batt;
#endif
--
cgit v1.2.1
From e999dbc254044e8d2a5818d92d205f65bae28f37 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sun, 19 Oct 2014 17:13:57 +0200
Subject: Revert "block: all blk-mq requests are tagged"
This reverts commit fb3ccb5da71273e7f0d50b50bc879e50cedd60e7.
SCSI-2/SPI actually needs the tagged/untagged flag in the request to
work properly. Revert this patch and add a follow on to set it in
the right place.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Cc: stable@vger.kernel.org
---
include/linux/blkdev.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0207a78a8d82..51d0dc2259cf 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1136,8 +1136,7 @@ static inline bool blk_needs_flush_plug(struct task_struct *tsk)
/*
* tag stuff
*/
-#define blk_rq_tagged(rq) \
- ((rq)->mq_ctx || ((rq)->cmd_flags & REQ_QUEUED))
+#define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED)
extern int blk_queue_start_tag(struct request_queue *, struct request *);
extern struct request *blk_queue_find_tag(struct request_queue *, int);
extern void blk_queue_end_tag(struct request_queue *, struct request *);
--
cgit v1.2.1
From b1dd2aac4cc0892b82ec60232ed37e3b0af776cc Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sun, 19 Oct 2014 17:13:58 +0200
Subject: scsi: set REQ_QUEUE for the blk-mq case
To generate the right SPI tag messages we need to properly set
QUEUE_FLAG_QUEUED in the request_queue and mirror it to the
request.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Cc: stable@vger.kernel.org
---
include/scsi/scsi_tcq.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index e64583560701..56ed843969ca 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -67,8 +67,9 @@ static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth)
if (!sdev->tagged_supported)
return;
- if (!shost_use_blk_mq(sdev->host) &&
- !blk_queue_tagged(sdev->request_queue))
+ if (shost_use_blk_mq(sdev->host))
+ queue_flag_set_unlocked(QUEUE_FLAG_QUEUED, sdev->request_queue);
+ else if (!blk_queue_tagged(sdev->request_queue))
blk_queue_init_tags(sdev->request_queue, depth,
sdev->host->bqt);
@@ -81,8 +82,7 @@ static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth)
**/
static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth)
{
- if (!shost_use_blk_mq(sdev->host) &&
- blk_queue_tagged(sdev->request_queue))
+ if (blk_queue_tagged(sdev->request_queue))
blk_queue_free_tags(sdev->request_queue);
scsi_adjust_queue_depth(sdev, 0, depth);
}
--
cgit v1.2.1
From fcd964dda5ece2fa77f78f843bc3455348787282 Mon Sep 17 00:00:00 2001
From: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Date: Tue, 7 Oct 2014 17:29:07 +0800
Subject: sched: Update comments for CLONE_NEWNS
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/1412674147-8941-1-git-send-email-chenhanxiao@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/uapi/linux/sched.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h
index 34f9d7387d13..b932be9f5c5b 100644
--- a/include/uapi/linux/sched.h
+++ b/include/uapi/linux/sched.h
@@ -13,7 +13,7 @@
#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
#define CLONE_PARENT 0x00008000 /* set if we want to have the same parent as the cloner */
#define CLONE_THREAD 0x00010000 /* Same thread group? */
-#define CLONE_NEWNS 0x00020000 /* New namespace group? */
+#define CLONE_NEWNS 0x00020000 /* New mount namespace group */
#define CLONE_SYSVSEM 0x00040000 /* share system V SEM_UNDO semantics */
#define CLONE_SETTLS 0x00080000 /* create a new TLS for the child */
#define CLONE_PARENT_SETTID 0x00100000 /* set the TID in the parent */
--
cgit v1.2.1
From 8f9fbf092cd0ae31722b42c9abb427a87d55c18a Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 7 Oct 2014 21:51:08 +0200
Subject: sched: Fix the PREEMPT_ACTIVE check in __trace_sched_switch_state()
task_preempt_count() has nothing to do with the actual preempt counter,
thread_info->saved_preempt_count is only valid right after switch_to().
__trace_sched_switch_state() can use preempt_count(), prev is still the
current task when trace_sched_switch() is called.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
[ Added BUG_ON(). ]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20141007195108.GB28002@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/trace/events/sched.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 0a68d5ae584e..30fedaf3e56a 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -97,16 +97,19 @@ static inline long __trace_sched_switch_state(struct task_struct *p)
long state = p->state;
#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_SCHED_DEBUG
+ BUG_ON(p != current);
+#endif /* CONFIG_SCHED_DEBUG */
/*
* For all intents and purposes a preempted task is a running task.
*/
- if (task_preempt_count(p) & PREEMPT_ACTIVE)
+ if (preempt_count() & PREEMPT_ACTIVE)
state = TASK_RUNNING | TASK_STATE_MAX;
-#endif
+#endif /* CONFIG_PREEMPT */
return state;
}
-#endif
+#endif /* CREATE_TRACE_POINTS */
/*
* Tracepoint for task switches, performed by the scheduler:
--
cgit v1.2.1
From e2336f6e51edda875a49770b616ed5b02a74665b Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 8 Oct 2014 20:33:48 +0200
Subject: sched: Kill task_preempt_count()
task_preempt_count() is pointless if preemption counter is per-cpu,
currently this is x86 only. It is only valid if the task is not
running, and even in this case the only info it can provide is the
state of PREEMPT_ACTIVE bit.
Change its single caller to check p->on_rq instead, this should be
the same if p->state != TASK_RUNNING, and kill this helper.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Kirill Tkhai <tkhai@yandex.ru>
Cc: Alexander Graf <agraf@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Lameter <cl@linux.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-arch@vger.kernel.org
Link: http://lkml.kernel.org/r/20141008183348.GC17495@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/asm-generic/preempt.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index 1cd3f5d767a8..eb6f9e6c3075 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -23,9 +23,6 @@ static __always_inline void preempt_count_set(int pc)
/*
* must be macros to avoid header recursion hell
*/
-#define task_preempt_count(p) \
- (task_thread_info(p)->preempt_count & ~PREEMPT_NEED_RESCHED)
-
#define init_task_preempt_count(p) do { \
task_thread_info(p)->preempt_count = PREEMPT_DISABLED; \
} while (0)
--
cgit v1.2.1
From 5dcb10159b1848b2c91ac2a11745d229f16fc26b Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Tue, 14 Oct 2014 11:12:55 +0200
Subject: dt: bindings: ux500: Add header for PM domains specifiers
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/dt-bindings/arm/ux500_pm_domains.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
create mode 100644 include/dt-bindings/arm/ux500_pm_domains.h
(limited to 'include')
diff --git a/include/dt-bindings/arm/ux500_pm_domains.h b/include/dt-bindings/arm/ux500_pm_domains.h
new file mode 100644
index 000000000000..398a6c0288d1
--- /dev/null
+++ b/include/dt-bindings/arm/ux500_pm_domains.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2014 Linaro Ltd.
+ *
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef _DT_BINDINGS_ARM_UX500_PM_DOMAINS_H
+#define _DT_BINDINGS_ARM_UX500_PM_DOMAINS_H
+
+#define DOMAIN_VAPE 0
+
+/* Number of PM domains. */
+#define NR_DOMAINS (DOMAIN_VAPE + 1)
+
+#endif
--
cgit v1.2.1
From 7f51412a415d87ea8598d14722fb31e4f5701257 Mon Sep 17 00:00:00 2001
From: Juri Lelli <juri.lelli@arm.com>
Date: Fri, 19 Sep 2014 10:22:40 +0100
Subject: sched/deadline: Fix bandwidth check/update when migrating tasks
between exclusive cpusets
Exclusive cpusets are the only way users can restrict SCHED_DEADLINE tasks
affinity (performing what is commonly called clustered scheduling).
Unfortunately, such thing is currently broken for two reasons:
- No check is performed when the user tries to attach a task to
an exlusive cpuset (recall that exclusive cpusets have an
associated maximum allowed bandwidth).
- Bandwidths of source and destination cpusets are not correctly
updated after a task is migrated between them.
This patch fixes both things at once, as they are opposite faces
of the same coin.
The check is performed in cpuset_can_attach(), as there aren't any
points of failure after that function. The updated is split in two
halves. We first reserve bandwidth in the destination cpuset, after
we pass the check in cpuset_can_attach(). And we then release
bandwidth from the source cpuset when the task's affinity is
actually changed. Even if there can be time windows when sched_setattr()
may erroneously fail in the source cpuset, we are fine with it, as
we can't perfom an atomic update of both cpusets at once.
Reported-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Reported-by: Vincent Legout <vincent@legout.info>
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Dario Faggioli <raistlin@linux.it>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Cc: Fabio Checconi <fchecconi@gmail.com>
Cc: michael@amarulasolutions.com
Cc: luca.abeni@unitn.it
Cc: Li Zefan <lizefan@huawei.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: cgroups@vger.kernel.org
Link: http://lkml.kernel.org/r/1411118561-26323-3-git-send-email-juri.lelli@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5e344bbe63ec..1d1fa081d44f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2052,6 +2052,8 @@ static inline void tsk_restore_flags(struct task_struct *task,
task->flags |= orig_flags & flags;
}
+extern int task_can_attach(struct task_struct *p,
+ const struct cpumask *cs_cpus_allowed);
#ifdef CONFIG_SMP
extern void do_set_cpus_allowed(struct task_struct *p,
const struct cpumask *new_mask);
--
cgit v1.2.1
From f82f80426f7afcf55953924e71555984a4bd6ce6 Mon Sep 17 00:00:00 2001
From: Juri Lelli <juri.lelli@arm.com>
Date: Tue, 7 Oct 2014 09:52:11 +0100
Subject: sched/deadline: Ensure that updates to exclusive cpusets don't break
AC
How we deal with updates to exclusive cpusets is currently broken.
As an example, suppose we have an exclusive cpuset composed of
two cpus: A[cpu0,cpu1]. We can assign SCHED_DEADLINE task to it
up to the allowed bandwidth. If we want now to modify cpusetA's
cpumask, we have to check that removing a cpu's amount of
bandwidth doesn't break AC guarantees. This thing isn't checked
in the current code.
This patch fixes the problem above, denying an update if the
new cpumask won't have enough bandwidth for SCHED_DEADLINE tasks
that are currently active.
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: cgroups@vger.kernel.org
Link: http://lkml.kernel.org/r/5433E6AF.5080105@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1d1fa081d44f..320a9779f1b4 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2052,6 +2052,8 @@ static inline void tsk_restore_flags(struct task_struct *task,
task->flags |= orig_flags & flags;
}
+extern int cpuset_cpumask_can_shrink(const struct cpumask *cur,
+ const struct cpumask *trial);
extern int task_can_attach(struct task_struct *p,
const struct cpumask *cs_cpus_allowed);
#ifdef CONFIG_SMP
--
cgit v1.2.1
From b438b1ab35507bbccc28d13f0b8286ffcf24019d Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@amacapital.net>
Date: Thu, 2 Oct 2014 22:16:36 -0700
Subject: perf: Fix typos in sample code in the perf_event.h header
struct perf_event_mmap_page has members called "index" and
"cap_user_rdpmc". Spell them correctly in the examples.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/320ba26391a8123cc16e5f02d24d34bd404332fd.1412313343.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/uapi/linux/perf_event.h | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 9269de254874..9d845404d875 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -364,7 +364,7 @@ struct perf_event_mmap_page {
/*
* Bits needed to read the hw events in user-space.
*
- * u32 seq, time_mult, time_shift, idx, width;
+ * u32 seq, time_mult, time_shift, index, width;
* u64 count, enabled, running;
* u64 cyc, time_offset;
* s64 pmc = 0;
@@ -383,11 +383,11 @@ struct perf_event_mmap_page {
* time_shift = pc->time_shift;
* }
*
- * idx = pc->index;
+ * index = pc->index;
* count = pc->offset;
- * if (pc->cap_usr_rdpmc && idx) {
+ * if (pc->cap_user_rdpmc && index) {
* width = pc->pmc_width;
- * pmc = rdpmc(idx - 1);
+ * pmc = rdpmc(index - 1);
* }
*
* barrier();
@@ -415,7 +415,7 @@ struct perf_event_mmap_page {
};
/*
- * If cap_usr_rdpmc this field provides the bit-width of the value
+ * If cap_user_rdpmc this field provides the bit-width of the value
* read using the rdpmc() or equivalent instruction. This can be used
* to sign extend the result like:
*
@@ -439,10 +439,10 @@ struct perf_event_mmap_page {
*
* Where time_offset,time_mult,time_shift and cyc are read in the
* seqcount loop described above. This delta can then be added to
- * enabled and possible running (if idx), improving the scaling:
+ * enabled and possible running (if index), improving the scaling:
*
* enabled += delta;
- * if (idx)
+ * if (index)
* running += delta;
*
* quot = count / running;
--
cgit v1.2.1
From 61ada528dea028331e99e8ceaed87c683ad25de2 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 24 Sep 2014 10:18:47 +0200
Subject: sched/wait: Provide infrastructure to deal with nested blocking
There are a few places that call blocking primitives from wait loops,
provide infrastructure to support this without the typical
task_struct::state collision.
We record the wakeup in wait_queue_t::flags which leaves
task_struct::state free to be used by others.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: tglx@linutronix.de
Cc: ilya.dryomov@inktank.com
Cc: umgwanakikbuti@gmail.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20140924082242.051202318@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/wait.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/wait.h b/include/linux/wait.h
index e4a8eb9312ea..fc0e99395fbb 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -13,9 +13,12 @@ typedef struct __wait_queue wait_queue_t;
typedef int (*wait_queue_func_t)(wait_queue_t *wait, unsigned mode, int flags, void *key);
int default_wake_function(wait_queue_t *wait, unsigned mode, int flags, void *key);
+/* __wait_queue::flags */
+#define WQ_FLAG_EXCLUSIVE 0x01
+#define WQ_FLAG_WOKEN 0x02
+
struct __wait_queue {
unsigned int flags;
-#define WQ_FLAG_EXCLUSIVE 0x01
void *private;
wait_queue_func_t func;
struct list_head task_list;
@@ -830,6 +833,8 @@ void prepare_to_wait_exclusive(wait_queue_head_t *q, wait_queue_t *wait, int sta
long prepare_to_wait_event(wait_queue_head_t *q, wait_queue_t *wait, int state);
void finish_wait(wait_queue_head_t *q, wait_queue_t *wait);
void abort_exclusive_wait(wait_queue_head_t *q, wait_queue_t *wait, unsigned int mode, void *key);
+long wait_woken(wait_queue_t *wait, unsigned mode, long timeout);
+int woken_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
int autoremove_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
--
cgit v1.2.1
From e22b886a8a43b147e1994a9f970f678fc0df2033 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 24 Sep 2014 10:18:48 +0200
Subject: sched/wait: Add might_sleep() checks
Add more might_sleep() checks, suppose someone put a wait_event() like
thing in a wait loop..
Can't put might_sleep() in ___wait_event() because there's the locked
primitives which call ___wait_event() with locks held.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: tglx@linutronix.de
Cc: ilya.dryomov@inktank.com
Cc: umgwanakikbuti@gmail.com
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20140924082242.119255706@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/wait.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/linux/wait.h b/include/linux/wait.h
index fc0e99395fbb..0421775e0b9f 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -261,6 +261,7 @@ __out: __ret; \
*/
#define wait_event(wq, condition) \
do { \
+ might_sleep(); \
if (condition) \
break; \
__wait_event(wq, condition); \
@@ -293,6 +294,7 @@ do { \
#define wait_event_timeout(wq, condition, timeout) \
({ \
long __ret = timeout; \
+ might_sleep(); \
if (!___wait_cond_timeout(condition)) \
__ret = __wait_event_timeout(wq, condition, timeout); \
__ret; \
@@ -318,6 +320,7 @@ do { \
*/
#define wait_event_cmd(wq, condition, cmd1, cmd2) \
do { \
+ might_sleep(); \
if (condition) \
break; \
__wait_event_cmd(wq, condition, cmd1, cmd2); \
@@ -345,6 +348,7 @@ do { \
#define wait_event_interruptible(wq, condition) \
({ \
int __ret = 0; \
+ might_sleep(); \
if (!(condition)) \
__ret = __wait_event_interruptible(wq, condition); \
__ret; \
@@ -378,6 +382,7 @@ do { \
#define wait_event_interruptible_timeout(wq, condition, timeout) \
({ \
long __ret = timeout; \
+ might_sleep(); \
if (!___wait_cond_timeout(condition)) \
__ret = __wait_event_interruptible_timeout(wq, \
condition, timeout); \
@@ -428,6 +433,7 @@ do { \
#define wait_event_hrtimeout(wq, condition, timeout) \
({ \
int __ret = 0; \
+ might_sleep(); \
if (!(condition)) \
__ret = __wait_event_hrtimeout(wq, condition, timeout, \
TASK_UNINTERRUPTIBLE); \
@@ -453,6 +459,7 @@ do { \
#define wait_event_interruptible_hrtimeout(wq, condition, timeout) \
({ \
long __ret = 0; \
+ might_sleep(); \
if (!(condition)) \
__ret = __wait_event_hrtimeout(wq, condition, timeout, \
TASK_INTERRUPTIBLE); \
@@ -466,6 +473,7 @@ do { \
#define wait_event_interruptible_exclusive(wq, condition) \
({ \
int __ret = 0; \
+ might_sleep(); \
if (!(condition)) \
__ret = __wait_event_interruptible_exclusive(wq, condition);\
__ret; \
@@ -640,6 +648,7 @@ do { \
#define wait_event_killable(wq, condition) \
({ \
int __ret = 0; \
+ might_sleep(); \
if (!(condition)) \
__ret = __wait_event_killable(wq, condition); \
__ret; \
@@ -891,6 +900,7 @@ extern int bit_wait_io_timeout(struct wait_bit_key *);
static inline int
wait_on_bit(void *word, int bit, unsigned mode)
{
+ might_sleep();
if (!test_bit(bit, word))
return 0;
return out_of_line_wait_on_bit(word, bit,
@@ -915,6 +925,7 @@ wait_on_bit(void *word, int bit, unsigned mode)
static inline int
wait_on_bit_io(void *word, int bit, unsigned mode)
{
+ might_sleep();
if (!test_bit(bit, word))
return 0;
return out_of_line_wait_on_bit(word, bit,
@@ -941,6 +952,7 @@ wait_on_bit_io(void *word, int bit, unsigned mode)
static inline int
wait_on_bit_action(void *word, int bit, wait_bit_action_f *action, unsigned mode)
{
+ might_sleep();
if (!test_bit(bit, word))
return 0;
return out_of_line_wait_on_bit(word, bit, action, mode);
@@ -968,6 +980,7 @@ wait_on_bit_action(void *word, int bit, wait_bit_action_f *action, unsigned mode
static inline int
wait_on_bit_lock(void *word, int bit, unsigned mode)
{
+ might_sleep();
if (!test_and_set_bit(bit, word))
return 0;
return out_of_line_wait_on_bit_lock(word, bit, bit_wait, mode);
@@ -991,6 +1004,7 @@ wait_on_bit_lock(void *word, int bit, unsigned mode)
static inline int
wait_on_bit_lock_io(void *word, int bit, unsigned mode)
{
+ might_sleep();
if (!test_and_set_bit(bit, word))
return 0;
return out_of_line_wait_on_bit_lock(word, bit, bit_wait_io, mode);
@@ -1016,6 +1030,7 @@ wait_on_bit_lock_io(void *word, int bit, unsigned mode)
static inline int
wait_on_bit_lock_action(void *word, int bit, wait_bit_action_f *action, unsigned mode)
{
+ might_sleep();
if (!test_and_set_bit(bit, word))
return 0;
return out_of_line_wait_on_bit_lock(word, bit, action, mode);
@@ -1034,6 +1049,7 @@ wait_on_bit_lock_action(void *word, int bit, wait_bit_action_f *action, unsigned
static inline
int wait_on_atomic_t(atomic_t *val, int (*action)(atomic_t *), unsigned mode)
{
+ might_sleep();
if (atomic_read(val) == 0)
return 0;
return out_of_line_wait_on_atomic_t(val, action, mode);
--
cgit v1.2.1
From 1029a2b52c09e479fd7b07275812ad97868c0fb0 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 24 Sep 2014 10:18:49 +0200
Subject: sched, exit: Deal with nested sleeps
do_wait() is a big wait loop, but we set TASK_RUNNING too late; we end
up calling potential sleeps before we reset it.
Not strictly a bug since we're guaranteed to exit the loop and not
call schedule(); put in annotations to quiet might_sleep().
WARNING: CPU: 0 PID: 1 at ../kernel/sched/core.c:7123 __might_sleep+0x7e/0x90()
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff8109a788>] do_wait+0x88/0x270
Call Trace:
[<ffffffff81694991>] dump_stack+0x4e/0x7a
[<ffffffff8109877c>] warn_slowpath_common+0x8c/0xc0
[<ffffffff8109886c>] warn_slowpath_fmt+0x4c/0x50
[<ffffffff810bca6e>] __might_sleep+0x7e/0x90
[<ffffffff811a1c15>] might_fault+0x55/0xb0
[<ffffffff8109a3fb>] wait_consider_task+0x90b/0xc10
[<ffffffff8109a804>] do_wait+0x104/0x270
[<ffffffff8109b837>] SyS_wait4+0x77/0x100
[<ffffffff8169d692>] system_call_fastpath+0x16/0x1b
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: tglx@linutronix.de
Cc: umgwanakikbuti@gmail.com
Cc: ilya.dryomov@inktank.com
Cc: Alex Elder <alex.elder@linaro.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Axel Lin <axel.lin@ingics.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Guillaume Morin <guillaume@morinfr.org>
Cc: Ionut Alexa <ionut.m.alexa@gmail.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Michal Schmidt <mschmidt@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20140924082242.186408915@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/kernel.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 3d770f5564b8..5068a0d9fecd 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -175,10 +175,12 @@ extern int _cond_resched(void);
*/
# define might_sleep() \
do { __might_sleep(__FILE__, __LINE__, 0); might_resched(); } while (0)
+# define sched_annotate_sleep() __set_current_state(TASK_RUNNING)
#else
static inline void __might_sleep(const char *file, int line,
int preempt_offset) { }
# define might_sleep() do { might_resched(); } while (0)
+# define sched_annotate_sleep() do { } while (0)
#endif
#define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)
--
cgit v1.2.1
From 26cabd31259ba43f68026ce3f62b78094124333f Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 24 Sep 2014 10:18:54 +0200
Subject: sched, net: Clean up sk_wait_event() vs. might_sleep()
WARNING: CPU: 1 PID: 1744 at kernel/sched/core.c:7104 __might_sleep+0x58/0x90()
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff81070e10>] prepare_to_wait+0x50 /0xa0
[<ffffffff8105bc38>] __might_sleep+0x58/0x90
[<ffffffff8148c671>] lock_sock_nested+0x31/0xb0
[<ffffffff81498aaa>] sk_stream_wait_memory+0x18a/0x2d0
Which is a false positive because sk_wait_event() will already have
TASK_RUNNING at that point if it would've gone through
schedule_timeout().
So annotate with sched_annotate_sleep(); which goes away on !DEBUG builds.
Reported-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20140924082242.524407432@infradead.org
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: netdev@vger.kernel.org
Cc: tglx@linutronix.de
Cc: ilya.dryomov@inktank.com
Cc: umgwanakikbuti@gmail.com
Cc: oleg@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/net/sock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index 7db3db112baa..e6f235ebf6c9 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -897,6 +897,7 @@ static inline void sock_rps_reset_rxhash(struct sock *sk)
if (!__rc) { \
*(__timeo) = schedule_timeout(*(__timeo)); \
} \
+ sched_annotate_sleep(); \
lock_sock(__sk); \
__rc = __condition; \
__rc; \
--
cgit v1.2.1
From 8eb23b9f35aae413140d3fda766a98092c21e9b0 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 24 Sep 2014 10:18:55 +0200
Subject: sched: Debug nested sleeps
Validate we call might_sleep() with TASK_RUNNING, which catches places
where we nest blocking primitives, eg. mutex usage in a wait loop.
Since all blocking is arranged through task_struct::state, nesting
this will cause the inner primitive to set TASK_RUNNING and the outer
will thus not block.
Another observed problem is calling a blocking function from
schedule()->sched_submit_work()->blk_schedule_flush_plug() which will
then destroy the task state for the actual __schedule() call that
comes after it.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: tglx@linutronix.de
Cc: ilya.dryomov@inktank.com
Cc: umgwanakikbuti@gmail.com
Cc: oleg@redhat.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20140924082242.591637616@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 46 ++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 44 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 320a9779f1b4..4648e07f7d6f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -243,6 +243,43 @@ extern char ___assert_task_state[1 - 2*!!(
((task->state & TASK_UNINTERRUPTIBLE) != 0 && \
(task->flags & PF_FROZEN) == 0)
+#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
+
+#define __set_task_state(tsk, state_value) \
+ do { \
+ (tsk)->task_state_change = _THIS_IP_; \
+ (tsk)->state = (state_value); \
+ } while (0)
+#define set_task_state(tsk, state_value) \
+ do { \
+ (tsk)->task_state_change = _THIS_IP_; \
+ set_mb((tsk)->state, (state_value)); \
+ } while (0)
+
+/*
+ * set_current_state() includes a barrier so that the write of current->state
+ * is correctly serialised wrt the caller's subsequent test of whether to
+ * actually sleep:
+ *
+ * set_current_state(TASK_UNINTERRUPTIBLE);
+ * if (do_i_need_to_sleep())
+ * schedule();
+ *
+ * If the caller does not need such serialisation then use __set_current_state()
+ */
+#define __set_current_state(state_value) \
+ do { \
+ current->task_state_change = _THIS_IP_; \
+ current->state = (state_value); \
+ } while (0)
+#define set_current_state(state_value) \
+ do { \
+ current->task_state_change = _THIS_IP_; \
+ set_mb(current->state, (state_value)); \
+ } while (0)
+
+#else
+
#define __set_task_state(tsk, state_value) \
do { (tsk)->state = (state_value); } while (0)
#define set_task_state(tsk, state_value) \
@@ -259,11 +296,13 @@ extern char ___assert_task_state[1 - 2*!!(
*
* If the caller does not need such serialisation then use __set_current_state()
*/
-#define __set_current_state(state_value) \
+#define __set_current_state(state_value) \
do { current->state = (state_value); } while (0)
-#define set_current_state(state_value) \
+#define set_current_state(state_value) \
set_mb(current->state, (state_value))
+#endif
+
/* Task command name length */
#define TASK_COMM_LEN 16
@@ -1661,6 +1700,9 @@ struct task_struct {
unsigned int sequential_io;
unsigned int sequential_io_avg;
#endif
+#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
+ unsigned long task_state_change;
+#endif
};
/* Future-safe accessor for struct task_struct's cpus_allowed. */
--
cgit v1.2.1
From 3427445afd26bd2395f29241319283a93f362cd0 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 24 Sep 2014 10:18:56 +0200
Subject: sched: Exclude cond_resched() from nested sleep test
cond_resched() is a preemption point, not strictly a blocking
primitive, so exclude it from the ->state test.
In particular, preemption preserves task_struct::state.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: tglx@linutronix.de
Cc: ilya.dryomov@inktank.com
Cc: umgwanakikbuti@gmail.com
Cc: oleg@redhat.com
Cc: Alex Elder <alex.elder@linaro.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Axel Lin <axel.lin@ingics.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20140924082242.656559952@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/kernel.h | 3 +++
include/linux/sched.h | 6 +++---
2 files changed, 6 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 5068a0d9fecd..446d76a87ba1 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -162,6 +162,7 @@ extern int _cond_resched(void);
#endif
#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
+ void ___might_sleep(const char *file, int line, int preempt_offset);
void __might_sleep(const char *file, int line, int preempt_offset);
/**
* might_sleep - annotation for functions that can sleep
@@ -177,6 +178,8 @@ extern int _cond_resched(void);
do { __might_sleep(__FILE__, __LINE__, 0); might_resched(); } while (0)
# define sched_annotate_sleep() __set_current_state(TASK_RUNNING)
#else
+ static inline void ___might_sleep(const char *file, int line,
+ int preempt_offset) { }
static inline void __might_sleep(const char *file, int line,
int preempt_offset) { }
# define might_sleep() do { might_resched(); } while (0)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4648e07f7d6f..4400ddc2fe73 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2806,7 +2806,7 @@ static inline int signal_pending_state(long state, struct task_struct *p)
extern int _cond_resched(void);
#define cond_resched() ({ \
- __might_sleep(__FILE__, __LINE__, 0); \
+ ___might_sleep(__FILE__, __LINE__, 0); \
_cond_resched(); \
})
@@ -2819,14 +2819,14 @@ extern int __cond_resched_lock(spinlock_t *lock);
#endif
#define cond_resched_lock(lock) ({ \
- __might_sleep(__FILE__, __LINE__, PREEMPT_LOCK_OFFSET); \
+ ___might_sleep(__FILE__, __LINE__, PREEMPT_LOCK_OFFSET);\
__cond_resched_lock(lock); \
})
extern int __cond_resched_softirq(void);
#define cond_resched_softirq() ({ \
- __might_sleep(__FILE__, __LINE__, SOFTIRQ_DISABLE_OFFSET); \
+ ___might_sleep(__FILE__, __LINE__, SOFTIRQ_DISABLE_OFFSET); \
__cond_resched_softirq(); \
})
--
cgit v1.2.1
From 5631b8fba640a4ab2f8a954f63a603fa34eda96b Mon Sep 17 00:00:00 2001
From: Steven Noonan <steven@uplinklabs.net>
Date: Sat, 25 Oct 2014 15:09:42 -0700
Subject: compiler/gcc4+: Remove inaccurate comment about 'asm goto'
miscompiles
The bug referenced by the comment in this commit was not
completely fixed in GCC 4.8.2, as I mentioned in a thread back
in February:
https://lkml.org/lkml/2014/2/12/797
The conclusion at that time was to make the quirk unconditional
until the bug could be found and fixed in GCC. Unfortunately,
when I submitted the patch (commit a9f18034) I left a comment
in that claimed the bug was fixed in GCC 4.8.2+.
This comment is inaccurate, and should be removed.
Signed-off-by: Steven Noonan <steven@uplinklabs.net>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1414274982-14040-1-git-send-email-steven@uplinklabs.net
Cc: Ingo Molnar <mingo@kernel.org>
---
include/linux/compiler-gcc4.h | 1 -
include/linux/compiler-gcc5.h | 1 -
2 files changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 2507fd2a1eb4..d1a558239b1a 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -71,7 +71,6 @@
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
*
* Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
- * Fixed in GCC 4.8.2 and later versions.
*
* (asm goto is automatically volatile - the naming reflects this.)
*/
diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
index cdd1cc202d51..c8c565952548 100644
--- a/include/linux/compiler-gcc5.h
+++ b/include/linux/compiler-gcc5.h
@@ -53,7 +53,6 @@
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
*
* Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
- * Fixed in GCC 4.8.2 and later versions.
*
* (asm goto is automatically volatile - the naming reflects this.)
*/
--
cgit v1.2.1
From 8c3e434769b1707fd2d24de5a2eb25fedc634c4a Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Sun, 26 Oct 2014 15:18:42 -0400
Subject: drm/radeon: remove invalid pci id
0x4c6e is a secondary device id so should not be used
by the driver.
Noticed-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
include/drm/drm_pciids.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index e973540cd15b..2dd405c9be78 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -74,7 +74,6 @@
{0x1002, 0x4C64, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV250|RADEON_IS_MOBILITY}, \
{0x1002, 0x4C66, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV250|RADEON_IS_MOBILITY}, \
{0x1002, 0x4C67, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV250|RADEON_IS_MOBILITY}, \
- {0x1002, 0x4C6E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280|RADEON_IS_MOBILITY}, \
{0x1002, 0x4E44, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R300}, \
{0x1002, 0x4E45, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R300}, \
{0x1002, 0x4E46, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R300}, \
--
cgit v1.2.1
From 7b366d5f161c2a69eeafe525105a5a9277982472 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 28 Oct 2014 15:30:00 +0100
Subject: ALSA: jack: Fix kerneldoc comments
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/jack.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/sound/jack.h b/include/sound/jack.h
index 58916573db58..37e612e77410 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -28,8 +28,9 @@
struct input_dev;
/**
- * Jack types which can be reported. These values are used as a
- * bitmask.
+ * enum snd_jack_types: Jack types which can be reported
+ *
+ * These values are used as a bitmask.
*
* Note that this must be kept in sync with the lookup table in
* sound/core/jack.c.
--
cgit v1.2.1
From e3a2e87893125bcd99bd7e1ddf9bfc421e492572 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Thu, 23 Oct 2014 17:27:07 +0900
Subject: gpio: rename gpio_lock_as_irq to gpiochip_lock_as_irq
This function actually operates on a gpio_chip, so its prefix should
reflect that fact for consistency with other functions defined in
gpio/driver.h.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/gpio.h | 7 ++++---
include/linux/gpio/driver.h | 4 ++--
2 files changed, 6 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 85aa5d0b9357..ab81339a8590 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -216,14 +216,15 @@ static inline int gpio_to_irq(unsigned gpio)
return -EINVAL;
}
-static inline int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset)
+static inline int gpiochip_lock_as_irq(struct gpio_chip *chip,
+ unsigned int offset)
{
WARN_ON(1);
return -EINVAL;
}
-static inline void gpio_unlock_as_irq(struct gpio_chip *chip,
- unsigned int offset)
+static inline void gpiochip_unlock_as_irq(struct gpio_chip *chip,
+ unsigned int offset)
{
WARN_ON(1);
}
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 249db3057e4d..ff200a75501e 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -149,8 +149,8 @@ extern struct gpio_chip *gpiochip_find(void *data,
int (*match)(struct gpio_chip *chip, void *data));
/* lock/unlock as IRQ */
-int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset);
-void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset);
+int gpiochip_lock_as_irq(struct gpio_chip *chip, unsigned int offset);
+void gpiochip_unlock_as_irq(struct gpio_chip *chip, unsigned int offset);
struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
--
cgit v1.2.1
From 859b2e374a86482004d1b8b94c1666269e1d7fd6 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Tue, 28 Oct 2014 21:25:13 +0530
Subject: ALSA: compress: fix documentation errors
Some structure documentation was not right so fix it now
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/compress_driver.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
index ae6c3b8ed2f5..396e8f73670a 100644
--- a/include/sound/compress_driver.h
+++ b/include/sound/compress_driver.h
@@ -42,12 +42,11 @@ struct snd_compr_ops;
* @buffer_size: size of the above buffer
* @fragment_size: size of buffer fragment in bytes
* @fragments: number of such fragments
- * @hw_pointer: offset of last location in buffer where DSP copied data
- * @app_pointer: offset of last location in buffer where app wrote data
* @total_bytes_available: cumulative number of bytes made available in
* the ring buffer
* @total_bytes_transferred: cumulative bytes transferred by offload DSP
* @sleep: poll sleep
+ * @private_data: driver private data pointer
*/
struct snd_compr_runtime {
snd_pcm_state_t state;
@@ -94,6 +93,8 @@ struct snd_compr_stream {
* This can be called in during stream creation only to set codec params
* and the stream properties
* @get_params: retrieve the codec parameters, mandatory
+ * @set_metadata: Set the metadata values for a stream
+ * @get_metadata: retreives the requested metadata values from stream
* @trigger: Trigger operations like start, pause, resume, drain, stop.
* This callback is mandatory
* @pointer: Retrieve current h/w pointer information. Mandatory
--
cgit v1.2.1
From 4bb1231a5f3262eec8d879386b88b4d48082fd46 Mon Sep 17 00:00:00 2001
From: Prabhakar Lad <prabhakar.csengg@gmail.com>
Date: Sun, 12 Oct 2014 17:40:37 -0300
Subject: [media] media: davinci: vpbe: use fh handling provided by v4l
this patch converts the driver to use fh handling provided by the
v4l core instead of driver doing it.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/davinci/vpbe_display.h | 11 -----------
1 file changed, 11 deletions(-)
(limited to 'include')
diff --git a/include/media/davinci/vpbe_display.h b/include/media/davinci/vpbe_display.h
index 637749a91432..06ea81576e5f 100644
--- a/include/media/davinci/vpbe_display.h
+++ b/include/media/davinci/vpbe_display.h
@@ -131,17 +131,6 @@ struct vpbe_display {
struct osd_state *osd_device;
};
-/* File handle structure */
-struct vpbe_fh {
- struct v4l2_fh fh;
- /* vpbe device structure */
- struct vpbe_display *disp_dev;
- /* pointer to layer object for opened device */
- struct vpbe_layer *layer;
- /* Indicates whether this file handle is doing IO */
- unsigned char io_allowed;
-};
-
struct buf_config_params {
unsigned char min_numbuffers;
unsigned char numbuffers[VPBE_DISPLAY_MAX_DEVICES];
--
cgit v1.2.1
From 1b73f03cbf483dbf986cb299f6d6c4ebdfbe6ba7 Mon Sep 17 00:00:00 2001
From: Prabhakar Lad <prabhakar.csengg@gmail.com>
Date: Sun, 12 Oct 2014 17:40:42 -0300
Subject: [media] media: davinci: vpbe: use helpers provided by core if
streaming is started
this patch uses vb2_is_busy() helper to check if streaming is
actually started, instead of driver managing it.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/davinci/vpbe_display.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/media/davinci/vpbe_display.h b/include/media/davinci/vpbe_display.h
index 06ea81576e5f..de0843d6f05c 100644
--- a/include/media/davinci/vpbe_display.h
+++ b/include/media/davinci/vpbe_display.h
@@ -106,12 +106,8 @@ struct vpbe_layer {
unsigned char window_enable;
/* number of open instances of the layer */
unsigned int usrs;
- /* number of users performing IO */
- unsigned int io_usrs;
/* Indicates id of the field which is being displayed */
unsigned int field_id;
- /* Indicates whether streaming started */
- unsigned char started;
/* Identifies device object */
enum vpbe_display_device_id device_id;
/* facilitation of ioctl ops lock by v4l2*/
--
cgit v1.2.1
From 8a93dbc1f4d5c33b444d561a8f4c4ddfc2e7cb74 Mon Sep 17 00:00:00 2001
From: Prabhakar Lad <prabhakar.csengg@gmail.com>
Date: Sun, 12 Oct 2014 17:40:43 -0300
Subject: [media] media: davinci: vpbe: drop unused member memory from
vpbe_layer
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/davinci/vpbe_display.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/media/davinci/vpbe_display.h b/include/media/davinci/vpbe_display.h
index de0843d6f05c..163a02b92c04 100644
--- a/include/media/davinci/vpbe_display.h
+++ b/include/media/davinci/vpbe_display.h
@@ -91,10 +91,6 @@ struct vpbe_layer {
/* V4l2 specific parameters */
/* Identifies video device for this layer */
struct video_device video_dev;
- /* This field keeps track of type of buffer exchange mechanism user
- * has selected
- */
- enum v4l2_memory memory;
/* Used to store pixel format */
struct v4l2_pix_format pix_fmt;
enum v4l2_field buf_field;
--
cgit v1.2.1
From d7e29933969e5ca7c112ce1368a07911f4485dc2 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Mon, 27 Oct 2014 09:15:54 -0700
Subject: rcu: Make rcu_barrier() understand about missing rcuo kthreads
Commit 35ce7f29a44a (rcu: Create rcuo kthreads only for onlined CPUs)
avoids creating rcuo kthreads for CPUs that never come online. This
fixes a bug in many instances of firmware: Instead of lying about their
age, these systems instead lie about the number of CPUs that they have.
Before commit 35ce7f29a44a, this could result in huge numbers of useless
rcuo kthreads being created.
It appears that experience indicates that I should have told the
people suffering from this problem to fix their broken firmware, but
I instead produced what turned out to be a partial fix. The missing
piece supplied by this commit makes sure that rcu_barrier() knows not to
post callbacks for no-CBs CPUs that have not yet come online, because
otherwise rcu_barrier() will hang on systems having firmware that lies
about the number of CPUs.
It is tempting to simply have rcu_barrier() refuse to post a callback on
any no-CBs CPU that does not have an rcuo kthread. This unfortunately
does not work because rcu_barrier() is required to wait for all pending
callbacks. It is therefore required to wait even for those callbacks
that cannot possibly be invoked. Even if doing so hangs the system.
Given that posting a callback to a no-CBs CPU that does not yet have an
rcuo kthread can hang rcu_barrier(), It is tempting to report an error
in this case. Unfortunately, this will result in false positives at
boot time, when it is perfectly legal to post callbacks to the boot CPU
before the scheduler has started, in other words, before it is legal
to invoke rcu_barrier().
So this commit instead has rcu_barrier() avoid posting callbacks to
CPUs having neither rcuo kthread nor pending callbacks, and has it
complain bitterly if it finds CPUs having no rcuo kthread but some
pending callbacks. And when rcu_barrier() does find CPUs having no rcuo
kthread but pending callbacks, as noted earlier, it has no choice but
to hang indefinitely.
Reported-by: Yanko Kaneti <yaneti@declera.com>
Reported-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Reported-by: Meelis Roos <mroos@linux.ee>
Reported-by: Eric B Munson <emunson@akamai.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Eric B Munson <emunson@akamai.com>
Tested-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Tested-by: Yanko Kaneti <yaneti@declera.com>
Tested-by: Kevin Fenzi <kevin@scrye.com>
Tested-by: Meelis Roos <mroos@linux.ee>
---
include/trace/events/rcu.h | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 9b56f37148cf..e335e7d8c6c2 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -660,18 +660,18 @@ TRACE_EVENT(rcu_torture_read,
/*
* Tracepoint for _rcu_barrier() execution. The string "s" describes
* the _rcu_barrier phase:
- * "Begin": rcu_barrier_callback() started.
- * "Check": rcu_barrier_callback() checking for piggybacking.
- * "EarlyExit": rcu_barrier_callback() piggybacked, thus early exit.
- * "Inc1": rcu_barrier_callback() piggyback check counter incremented.
- * "Offline": rcu_barrier_callback() found offline CPU
- * "OnlineNoCB": rcu_barrier_callback() found online no-CBs CPU.
- * "OnlineQ": rcu_barrier_callback() found online CPU with callbacks.
- * "OnlineNQ": rcu_barrier_callback() found online CPU, no callbacks.
+ * "Begin": _rcu_barrier() started.
+ * "Check": _rcu_barrier() checking for piggybacking.
+ * "EarlyExit": _rcu_barrier() piggybacked, thus early exit.
+ * "Inc1": _rcu_barrier() piggyback check counter incremented.
+ * "OfflineNoCB": _rcu_barrier() found callback on never-online CPU
+ * "OnlineNoCB": _rcu_barrier() found online no-CBs CPU.
+ * "OnlineQ": _rcu_barrier() found online CPU with callbacks.
+ * "OnlineNQ": _rcu_barrier() found online CPU, no callbacks.
* "IRQ": An rcu_barrier_callback() callback posted on remote CPU.
* "CB": An rcu_barrier_callback() invoked a callback, not the last.
* "LastCB": An rcu_barrier_callback() invoked the last callback.
- * "Inc2": rcu_barrier_callback() piggyback check counter incremented.
+ * "Inc2": _rcu_barrier() piggyback check counter incremented.
* The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument
* is the count of remaining callbacks, and "done" is the piggybacking count.
*/
--
cgit v1.2.1
From 95f259ca3bf485a0c1f17d9024813d4aab485a23 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Sat, 25 Oct 2014 12:08:59 +0200
Subject: net: pxa168_eth: Fix providing of phy_interface mode on platform_data
Do not add phy include to the board file but platform_data include
instead.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/pxa168_eth.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/pxa168_eth.h b/include/linux/pxa168_eth.h
index 37c381120bc8..e1ab6e86cdb3 100644
--- a/include/linux/pxa168_eth.h
+++ b/include/linux/pxa168_eth.h
@@ -4,6 +4,8 @@
#ifndef __LINUX_PXA168_ETH_H
#define __LINUX_PXA168_ETH_H
+#include <linux/phy.h>
+
struct pxa168_eth_platform_data {
int port_number;
int phy_addr;
--
cgit v1.2.1
From ebcf34f3d4be11f994340aff629f3c17171a4f65 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 26 Oct 2014 19:14:06 -0700
Subject: skbuff.h: fix kernel-doc warning for headers_end
Fix kernel-doc warning in <linux/skbuff.h> by making both headers_start
and headers_end private fields.
Warning(..//include/linux/skbuff.h:654): No description found for parameter 'headers_end[0]'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a59d9343c25b..5884f95ff0e9 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -557,7 +557,9 @@ struct sk_buff {
/* fields enclosed in headers_start/headers_end are copied
* using a single memcpy() in __copy_skb_header()
*/
+ /* private: */
__u32 headers_start[0];
+ /* public: */
/* if you move pkt_type around you also must adapt those constants */
#ifdef __BIG_ENDIAN_BITFIELD
@@ -642,7 +644,9 @@ struct sk_buff {
__u16 network_header;
__u16 mac_header;
+ /* private: */
__u32 headers_end[0];
+ /* public: */
/* These elements must be at the end, see alloc_skb() for details. */
sk_buff_data_t tail;
--
cgit v1.2.1
From 941d8ebcf773fd5da5c79e1c86e1afaae7032a0b Mon Sep 17 00:00:00 2001
From: Simon Horman <simon.horman@netronome.com>
Date: Mon, 27 Oct 2014 16:12:16 +0900
Subject: datapath: Rename last_action() as nla_is_last() and move to netlink.h
The original motivation for this change was to allow the helper to be used
in files other than actions.c as part of work on an odp select group
action.
It was as pointed out by Thomas Graf that this helper would be best off
living in netlink.h. Furthermore, I think that the generic nature of this
helper means it is best off in netlink.h regardless of if it is used more
than one .c file or not. Thus, I would like it considered independent of
the work on an odp select group action.
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Pravin Shelar <pshelar@nicira.com>
Cc: Andy Zhou <azhou@nicira.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/netlink.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 7b903e1bdbbb..64158353ecb2 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -1185,4 +1185,14 @@ static inline int nla_validate_nested(const struct nlattr *start, int maxtype,
#define nla_for_each_nested(pos, nla, rem) \
nla_for_each_attr(pos, nla_data(nla), nla_len(nla), rem)
+/**
+ * nla_is_last - Test if attribute is last in stream
+ * @nla: attribute to test
+ * @rem: bytes remaining in stream
+ */
+static inline bool nla_is_last(const struct nlattr *nla, int rem)
+{
+ return nla->nla_len == rem;
+}
+
#endif
--
cgit v1.2.1
From 32a173c7f9e9ec2b87142f67e1478cd20084a45b Mon Sep 17 00:00:00 2001
From: Saeed Mahameed <saeedm@mellanox.com>
Date: Mon, 27 Oct 2014 11:37:35 +0200
Subject: net/mlx4_core: Introduce mlx4_get_module_info for cable module info
reading
Added new MAD_IFC command to read cable module info with attribute id (0xFF60).
Update include/linux/mlx4/device.h with function declaration (mlx4_get_module_info)
and the needed defines/enums for future use.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 37e4404d0227..73910daec317 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -379,6 +379,13 @@ enum {
#define MSTR_SM_CHANGE_MASK (MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK | \
MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK)
+enum mlx4_module_id {
+ MLX4_MODULE_ID_SFP = 0x3,
+ MLX4_MODULE_ID_QSFP = 0xC,
+ MLX4_MODULE_ID_QSFP_PLUS = 0xD,
+ MLX4_MODULE_ID_QSFP28 = 0x11,
+};
+
static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
{
return (major << 32) | (minor << 16) | subminor;
@@ -799,6 +806,26 @@ struct mlx4_init_port_param {
u64 si_guid;
};
+#define MAD_IFC_DATA_SZ 192
+/* MAD IFC Mailbox */
+struct mlx4_mad_ifc {
+ u8 base_version;
+ u8 mgmt_class;
+ u8 class_version;
+ u8 method;
+ __be16 status;
+ __be16 class_specific;
+ __be64 tid;
+ __be16 attr_id;
+ __be16 resv;
+ __be32 attr_mod;
+ __be64 mkey;
+ __be16 dr_slid;
+ __be16 dr_dlid;
+ u8 reserved[28];
+ u8 data[MAD_IFC_DATA_SZ];
+} __packed;
+
#define mlx4_foreach_port(port, dev, type) \
for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \
if ((type) == (dev)->caps.port_mask[(port)])
@@ -1283,6 +1310,9 @@ int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr,
u64 iova, u64 size, int npages,
int page_shift, struct mlx4_mpt_entry *mpt_entry);
+int mlx4_get_module_info(struct mlx4_dev *dev, u8 port,
+ u16 offset, u16 size, u8 *data);
+
/* Returns true if running in low memory profile (kdump kernel) */
static inline bool mlx4_low_memory_profile(void)
{
--
cgit v1.2.1
From 7202da8b7f7131d25411d81aa557e28cd941c5b6 Mon Sep 17 00:00:00 2001
From: Saeed Mahameed <saeedm@mellanox.com>
Date: Mon, 27 Oct 2014 11:37:36 +0200
Subject: ethtool, net/mlx4_en: Cable info, get_module_info/eeprom ethtool
support
Added support for get_module_info/get_module_eeprom ethtool support for cable info reading.
Added new cable types enum in include/uapi/linux/ethtool.h for ethtool use.
+#define ETH_MODULE_SFF_8636 0x3
+#define ETH_MODULE_SFF_8636_LEN 256
+#define ETH_MODULE_SFF_8436 0x4
+#define ETH_MODULE_SFF_8436_LEN 256
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/ethtool.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 99b43056a6fe..b6acd78b821c 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1343,6 +1343,10 @@ enum ethtool_sfeatures_retval_bits {
#define ETH_MODULE_SFF_8079_LEN 256
#define ETH_MODULE_SFF_8472 0x2
#define ETH_MODULE_SFF_8472_LEN 512
+#define ETH_MODULE_SFF_8636 0x3
+#define ETH_MODULE_SFF_8636_LEN 256
+#define ETH_MODULE_SFF_8436 0x4
+#define ETH_MODULE_SFF_8436_LEN 256
/* Reset flags */
/* The reset() operation must clear the flags for the components which
--
cgit v1.2.1
From adbc7ac5c15eb5e9d70393428345e72a1a897d6a Mon Sep 17 00:00:00 2001
From: Saeed Mahameed <saeedm@mellanox.com>
Date: Mon, 27 Oct 2014 11:37:37 +0200
Subject: net/mlx4_core: Introduce ACCESS_REG CMD and eth_prot_ctrl dev cap
Adding ACCESS REG mlx4 command and use it to implement Query method for
PTYS (Port Type and Speed Register).
Query and store eth_prot_ctrl dev cap.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/cmd.h | 2 ++
include/linux/mlx4/device.h | 40 +++++++++++++++++++++++++++++++++++++++-
2 files changed, 41 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index 379c02648ab3..ff5f5deb3dcf 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -67,6 +67,8 @@ enum {
MLX4_CMD_MAP_ICM_AUX = 0xffc,
MLX4_CMD_UNMAP_ICM_AUX = 0xffb,
MLX4_CMD_SET_ICM_SIZE = 0xffd,
+ MLX4_CMD_ACCESS_REG = 0x3b,
+
/*master notify fw on finish for slave's flr*/
MLX4_CMD_INFORM_FLR_DONE = 0x5b,
MLX4_CMD_GET_OP_REQ = 0x59,
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 73910daec317..181cd9fc90f2 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -186,7 +186,8 @@ enum {
MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS = 1LL << 10,
MLX4_DEV_CAP_FLAG2_MAD_DEMUX = 1LL << 11,
MLX4_DEV_CAP_FLAG2_CQE_STRIDE = 1LL << 12,
- MLX4_DEV_CAP_FLAG2_EQE_STRIDE = 1LL << 13
+ MLX4_DEV_CAP_FLAG2_EQE_STRIDE = 1LL << 13,
+ MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL = 1LL << 14
};
enum {
@@ -1319,4 +1320,41 @@ static inline bool mlx4_low_memory_profile(void)
return is_kdump_kernel();
}
+/* ACCESS REG commands */
+enum mlx4_access_reg_method {
+ MLX4_ACCESS_REG_QUERY = 0x1,
+ MLX4_ACCESS_REG_WRITE = 0x2,
+};
+
+/* ACCESS PTYS Reg command */
+enum mlx4_ptys_proto {
+ MLX4_PTYS_IB = 1<<0,
+ MLX4_PTYS_EN = 1<<2,
+};
+
+struct mlx4_ptys_reg {
+ u8 resrvd1;
+ u8 local_port;
+ u8 resrvd2;
+ u8 proto_mask;
+ __be32 resrvd3[2];
+ __be32 eth_proto_cap;
+ __be16 ib_width_cap;
+ __be16 ib_speed_cap;
+ __be32 resrvd4;
+ __be32 eth_proto_admin;
+ __be16 ib_width_admin;
+ __be16 ib_speed_admin;
+ __be32 resrvd5;
+ __be32 eth_proto_oper;
+ __be16 ib_width_oper;
+ __be16 ib_speed_oper;
+ __be32 resrvd6;
+ __be32 eth_proto_lp_adv;
+} __packed;
+
+int mlx4_ACCESS_PTYS_REG(struct mlx4_dev *dev,
+ enum mlx4_access_reg_method method,
+ struct mlx4_ptys_reg *ptys_reg);
+
#endif /* MLX4_DEVICE_H */
--
cgit v1.2.1
From a53e3e8c1db547981e13d1ebf24a659bd4e87710 Mon Sep 17 00:00:00 2001
From: Saeed Mahameed <saeedm@mellanox.com>
Date: Mon, 27 Oct 2014 11:37:38 +0200
Subject: net/mlx4_core: Add ethernet backplane autoneg device capability
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 181cd9fc90f2..e4c136ebe79b 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -187,7 +187,8 @@ enum {
MLX4_DEV_CAP_FLAG2_MAD_DEMUX = 1LL << 11,
MLX4_DEV_CAP_FLAG2_CQE_STRIDE = 1LL << 12,
MLX4_DEV_CAP_FLAG2_EQE_STRIDE = 1LL << 13,
- MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL = 1LL << 14
+ MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL = 1LL << 14,
+ MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP = 1LL << 15
};
enum {
--
cgit v1.2.1
From dcf972a334dd76975bf144ca57350c1f3132c947 Mon Sep 17 00:00:00 2001
From: Saeed Mahameed <saeedm@mellanox.com>
Date: Mon, 27 Oct 2014 11:37:39 +0200
Subject: ethtool, net/mlx4_en: Add 100M, 20G, 56G speeds ethtool reporting
support
Added 100M, 20G and 56G ethtool speed reporting support.
Update mlx4_en_test_speed self test with the new speeds.
Defined new link speeds in include/uapi/linux/ethtool.h:
+#define SPEED_20000 20000
+#define SPEED_40000 40000
+#define SPEED_56000 56000
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/ethtool.h | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index b6acd78b821c..eb2095b42fbb 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1213,6 +1213,10 @@ enum ethtool_sfeatures_retval_bits {
#define SUPPORTED_40000baseCR4_Full (1 << 24)
#define SUPPORTED_40000baseSR4_Full (1 << 25)
#define SUPPORTED_40000baseLR4_Full (1 << 26)
+#define SUPPORTED_56000baseKR4_Full (1 << 27)
+#define SUPPORTED_56000baseCR4_Full (1 << 28)
+#define SUPPORTED_56000baseSR4_Full (1 << 29)
+#define SUPPORTED_56000baseLR4_Full (1 << 30)
#define ADVERTISED_10baseT_Half (1 << 0)
#define ADVERTISED_10baseT_Full (1 << 1)
@@ -1241,6 +1245,10 @@ enum ethtool_sfeatures_retval_bits {
#define ADVERTISED_40000baseCR4_Full (1 << 24)
#define ADVERTISED_40000baseSR4_Full (1 << 25)
#define ADVERTISED_40000baseLR4_Full (1 << 26)
+#define ADVERTISED_56000baseKR4_Full (1 << 27)
+#define ADVERTISED_56000baseCR4_Full (1 << 28)
+#define ADVERTISED_56000baseSR4_Full (1 << 29)
+#define ADVERTISED_56000baseLR4_Full (1 << 30)
/* The following are all involved in forcing a particular link
* mode for the device for setting things. When getting the
@@ -1248,12 +1256,16 @@ enum ethtool_sfeatures_retval_bits {
* it was forced up into this mode or autonegotiated.
*/
-/* The forced speed, 10Mb, 100Mb, gigabit, 2.5Gb, 10GbE. */
+/* The forced speed, 10Mb, 100Mb, gigabit, [2.5|10|20|40|56]GbE. */
#define SPEED_10 10
#define SPEED_100 100
#define SPEED_1000 1000
#define SPEED_2500 2500
#define SPEED_10000 10000
+#define SPEED_20000 20000
+#define SPEED_40000 40000
+#define SPEED_56000 56000
+
#define SPEED_UNKNOWN -1
/* Duplex, half or full. */
--
cgit v1.2.1
From 1efed2d06c703489342ab6af2951683e07509c99 Mon Sep 17 00:00:00 2001
From: Olivier Blin <olivier.blin@softathome.com>
Date: Fri, 24 Oct 2014 19:43:00 +0200
Subject: usbnet: add a callback for set_rx_mode
To delegate promiscuous mode and multicast filtering to the subdriver.
Signed-off-by: Olivier Blin <olivier.blin@softathome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/usb/usbnet.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 26088feb6608..d9a4905e01d0 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -78,6 +78,7 @@ struct usbnet {
# define EVENT_NO_RUNTIME_PM 9
# define EVENT_RX_KILL 10
# define EVENT_LINK_CHANGE 11
+# define EVENT_SET_RX_MODE 12
};
static inline struct usb_driver *driver_of(struct usb_interface *intf)
@@ -159,6 +160,9 @@ struct driver_info {
/* called by minidriver when receiving indication */
void (*indication)(struct usbnet *dev, void *ind, int indlen);
+ /* rx mode change (device changes address list filtering) */
+ void (*set_rx_mode)(struct usbnet *dev);
+
/* for new devices, use the descriptor-reading code instead */
int in; /* rx endpoint */
int out; /* tx endpoint */
--
cgit v1.2.1
From 16301861004e50be9c47113cceca62f56516a9a2 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Tue, 28 Oct 2014 18:21:18 +0100
Subject: mac802154: declare struct ieee802154_ops as const
The ieee802154_ops structure should be never changed during runtime.
This patch declare this structure as const to avoid a runtime change.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 4c4642ef244f..0ea44cda2920 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -197,7 +197,7 @@ struct ieee802154_ops {
/* Basic interface to register ieee802154 hwice */
struct ieee802154_hw *
-ieee802154_alloc_hw(size_t priv_data_len, struct ieee802154_ops *ops);
+ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops);
void ieee802154_free_hw(struct ieee802154_hw *hw);
int ieee802154_register_hw(struct ieee802154_hw *hw);
void ieee802154_unregister_hw(struct ieee802154_hw *hw);
--
cgit v1.2.1
From e37d2ec82a222f1819e7793a27bc052999a379fb Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Tue, 28 Oct 2014 18:21:19 +0100
Subject: mac802154: ops: declare channel and page as u8
The range of channel and page fits into an unsigned byte range. This
patch changes the set_channel parameter definitions for channel and
page to u8.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 0ea44cda2920..85a4efca418b 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -178,9 +178,8 @@ struct ieee802154_ops {
int (*xmit_async)(struct ieee802154_hw *hw,
struct sk_buff *skb);
int (*ed)(struct ieee802154_hw *hw, u8 *level);
- int (*set_channel)(struct ieee802154_hw *hw,
- int page,
- int channel);
+ int (*set_channel)(struct ieee802154_hw *hw, u8 page,
+ u8 channel);
int (*set_hw_addr_filt)(struct ieee802154_hw *hw,
struct ieee802154_hw_addr_filt *filt,
unsigned long changed);
--
cgit v1.2.1
From a543c5989d7711d984608f4e12a73218642ca865 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Tue, 28 Oct 2014 18:21:23 +0100
Subject: mac802154: remove driver ops in wpan-phy
This patch removes the driver ops callbacks inside of wpan_phy struct.
It was used to check if a phy supports this driver ops call. We do this
now via hardware flags.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 5c674673ef20..440b9bece9c6 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -57,14 +57,6 @@ struct wpan_phy {
const char *name, int type);
void (*del_iface)(struct wpan_phy *phy, struct net_device *dev);
- int (*set_txpower)(struct wpan_phy *phy, int db);
- int (*set_lbt)(struct wpan_phy *phy, bool on);
- int (*set_cca_mode)(struct wpan_phy *phy, u8 cca_mode);
- int (*set_cca_ed_level)(struct wpan_phy *phy, int level);
- int (*set_csma_params)(struct wpan_phy *phy, u8 min_be, u8 max_be,
- u8 retries);
- int (*set_frame_retries)(struct wpan_phy *phy, s8 retries);
-
char priv[0] __aligned(NETDEV_ALIGN);
};
--
cgit v1.2.1
From 54ef6df3f3f1353d99c80c437259d317b2cd1cbd Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Mon, 27 Oct 2014 21:11:27 -0700
Subject: rcu: Provide counterpart to rcu_dereference() for non-RCU situations
Although rcu_dereference() and friends can be used in situations where
object lifetimes are being managed by something other than RCU, the
resulting sparse and lockdep-RCU noise can be annoying. This commit
therefore supplies a lockless_dereference(), which provides the
protection for dereferences without the RCU-related debugging noise.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/rcupdate.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a4a819ffb2d1..53ff1a752d7e 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -616,6 +616,21 @@ static inline void rcu_preempt_sleep_check(void)
*/
#define RCU_INITIALIZER(v) (typeof(*(v)) __force __rcu *)(v)
+/**
+ * lockless_dereference() - safely load a pointer for later dereference
+ * @p: The pointer to load
+ *
+ * Similar to rcu_dereference(), but for situations where the pointed-to
+ * object's lifetime is managed by something other than RCU. That
+ * "something other" might be reference counting or simple immortality.
+ */
+#define lockless_dereference(p) \
+({ \
+ typeof(p) _________p1 = ACCESS_ONCE(p); \
+ smp_read_barrier_depends(); /* Dependency order vs. p above. */ \
+ (_________p1); \
+})
+
/**
* rcu_assign_pointer() - assign to RCU-protected pointer
* @p: pointer to assign to
--
cgit v1.2.1
From d1b72cc6d8cb766c802fdc70a5edc2f0ba8a2b57 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <miklos@szeredi.hu>
Date: Mon, 27 Oct 2014 15:42:01 +0100
Subject: overlayfs: fix lockdep misannotation
In an overlay directory that shadows an empty lower directory, say
/mnt/a/empty102, do:
touch /mnt/a/empty102/x
unlink /mnt/a/empty102/x
rmdir /mnt/a/empty102
It's actually harmless, but needs another level of nesting between
I_MUTEX_CHILD and I_MUTEX_NORMAL.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Tested-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/fs.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 4e41a4a331bb..01036262095f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -639,11 +639,13 @@ static inline int inode_unhashed(struct inode *inode)
* 2: child/target
* 3: xattr
* 4: second non-directory
- * The last is for certain operations (such as rename) which lock two
+ * 5: second parent (when locking independent directories in rename)
+ *
+ * I_MUTEX_NONDIR2 is for certain operations (such as rename) which lock two
* non-directories at once.
*
* The locking order between these classes is
- * parent -> child -> normal -> xattr -> second non-directory
+ * parent[2] -> child -> grandchild -> normal -> xattr -> second non-directory
*/
enum inode_i_mutex_lock_class
{
@@ -651,7 +653,8 @@ enum inode_i_mutex_lock_class
I_MUTEX_PARENT,
I_MUTEX_CHILD,
I_MUTEX_XATTR,
- I_MUTEX_NONDIR2
+ I_MUTEX_NONDIR2,
+ I_MUTEX_PARENT2,
};
void lock_two_nondirectories(struct inode *, struct inode*);
--
cgit v1.2.1
From cb1a5ab6ece7a37da4ac98ee26b0475b7c3ea79e Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Tue, 28 Oct 2014 20:27:43 -0600
Subject: block: Fix merge logic when CONFIG_BLK_DEV_INTEGRITY is not defined
Commit 4eaf99beadce switched to returning bool and as a result reversed
the logic of the integrity merge checks. However, the empty stubs used
when the block integrity code is compiled out were still returning
0. Make these stubs return "true".
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reported-by: Michael L. Semon <mlsemon35@gmail.com>
Tested-by: Michael L. Semon <mlsemon35@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blkdev.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0207a78a8d82..6cbee8395f60 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1583,13 +1583,13 @@ static inline bool blk_integrity_merge_rq(struct request_queue *rq,
struct request *r1,
struct request *r2)
{
- return 0;
+ return true;
}
static inline bool blk_integrity_merge_bio(struct request_queue *rq,
struct request *r,
struct bio *b)
{
- return 0;
+ return true;
}
static inline bool blk_integrity_is_initialized(struct gendisk *g)
{
--
cgit v1.2.1
From e83280f96f108ee7af8c5669080cf664b0c2b8fb Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 29 Oct 2014 08:20:46 +0100
Subject: ALSA: doc: Fix enum snd_jack_types comments
Follow the proper kerneldoc rule, and complete enum item comments.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/jack.h | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/jack.h b/include/sound/jack.h
index 37e612e77410..67f2bbcd515e 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -28,7 +28,21 @@
struct input_dev;
/**
- * enum snd_jack_types: Jack types which can be reported
+ * enum snd_jack_types - Jack types which can be reported
+ * @SND_JACK_HEADPHONE: Headphone
+ * @SND_JACK_MICROPHONE: Microphone
+ * @SND_JACK_HEADSET: Headset
+ * @SND_JACK_LINEOUT: Line out
+ * @SND_JACK_MECHANICAL: Mechanical switch
+ * @SND_JACK_VIDEOOUT: Video out
+ * @SND_JACK_AVOUT: AV (Audio Video) out
+ * @SND_JACK_LINEIN: Line in
+ * @SND_JACK_BTN_0: Button 0
+ * @SND_JACK_BTN_1: Button 1
+ * @SND_JACK_BTN_2: Button 2
+ * @SND_JACK_BTN_3: Button 3
+ * @SND_JACK_BTN_4: Button 4
+ * @SND_JACK_BTN_5: Button 5
*
* These values are used as a bitmask.
*
--
cgit v1.2.1
From f533ccb61edf008e14c9e1b91b48cd2c7397f33d Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 29 Oct 2014 08:22:05 +0100
Subject: ALSA: doc: Fix uapi/sound/compress_offload.h kerneldoc comments
so that make htmldocs works properly.
Since kerneldoc can't handle noname enum properly, name enum
sndrv_compress_encoder.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/uapi/sound/compress_offload.h | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h
index 1964026b5e09..22ed8cb7800b 100644
--- a/include/uapi/sound/compress_offload.h
+++ b/include/uapi/sound/compress_offload.h
@@ -32,7 +32,7 @@
#define SNDRV_COMPRESS_VERSION SNDRV_PROTOCOL_VERSION(0, 1, 2)
/**
- * struct snd_compressed_buffer: compressed buffer
+ * struct snd_compressed_buffer - compressed buffer
* @fragment_size: size of buffer fragment in bytes
* @fragments: number of such fragments
*/
@@ -42,7 +42,7 @@ struct snd_compressed_buffer {
} __attribute__((packed, aligned(4)));
/**
- * struct snd_compr_params: compressed stream params
+ * struct snd_compr_params - compressed stream params
* @buffer: buffer description
* @codec: codec parameters
* @no_wake_mode: dont wake on fragment elapsed
@@ -54,7 +54,7 @@ struct snd_compr_params {
} __attribute__((packed, aligned(4)));
/**
- * struct snd_compr_tstamp: timestamp descriptor
+ * struct snd_compr_tstamp - timestamp descriptor
* @byte_offset: Byte offset in ring buffer to DSP
* @copied_total: Total number of bytes copied from/to ring buffer to/by DSP
* @pcm_frames: Frames decoded or encoded by DSP. This field will evolve by
@@ -73,7 +73,7 @@ struct snd_compr_tstamp {
} __attribute__((packed, aligned(4)));
/**
- * struct snd_compr_avail: avail descriptor
+ * struct snd_compr_avail - avail descriptor
* @avail: Number of bytes available in ring buffer for writing/reading
* @tstamp: timestamp infomation
*/
@@ -88,7 +88,7 @@ enum snd_compr_direction {
};
/**
- * struct snd_compr_caps: caps descriptor
+ * struct snd_compr_caps - caps descriptor
* @codecs: pointer to array of codecs
* @direction: direction supported. Of type snd_compr_direction
* @min_fragment_size: minimum fragment supported by DSP
@@ -110,7 +110,7 @@ struct snd_compr_caps {
} __attribute__((packed, aligned(4)));
/**
- * struct snd_compr_codec_caps: query capability of codec
+ * struct snd_compr_codec_caps - query capability of codec
* @codec: codec for which capability is queried
* @num_descriptors: number of codec descriptors
* @descriptor: array of codec capability descriptor
@@ -122,18 +122,19 @@ struct snd_compr_codec_caps {
} __attribute__((packed, aligned(4)));
/**
+ * enum sndrv_compress_encoder
* @SNDRV_COMPRESS_ENCODER_PADDING: no of samples appended by the encoder at the
* end of the track
* @SNDRV_COMPRESS_ENCODER_DELAY: no of samples inserted by the encoder at the
* beginning of the track
*/
-enum {
+enum sndrv_compress_encoder {
SNDRV_COMPRESS_ENCODER_PADDING = 1,
SNDRV_COMPRESS_ENCODER_DELAY = 2,
};
/**
- * struct snd_compr_metadata: compressed stream metadata
+ * struct snd_compr_metadata - compressed stream metadata
* @key: key id
* @value: key value
*/
--
cgit v1.2.1
From 43059f6ba21177f25ab1b10f95149cff1895806a Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Date: Wed, 22 Oct 2014 12:58:44 +0300
Subject: pinctrl: Device tree bindings for Qualcomm PMIC GPIO block
This introduced the device tree bindings for the GPIO block found
in PMIC's from Qualcomm.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/dt-bindings/pinctrl/qcom,pmic-gpio.h | 142 +++++++++++++++++++++++++++
1 file changed, 142 insertions(+)
create mode 100644 include/dt-bindings/pinctrl/qcom,pmic-gpio.h
(limited to 'include')
diff --git a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
new file mode 100644
index 000000000000..fa74d7cc960c
--- /dev/null
+++ b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
@@ -0,0 +1,142 @@
+/*
+ * This header provides constants for the Qualcomm PMIC GPIO binding.
+ */
+
+#ifndef _DT_BINDINGS_PINCTRL_QCOM_PMIC_GPIO_H
+#define _DT_BINDINGS_PINCTRL_QCOM_PMIC_GPIO_H
+
+#define PMIC_GPIO_PULL_UP_30 0
+#define PMIC_GPIO_PULL_UP_1P5 1
+#define PMIC_GPIO_PULL_UP_31P5 2
+#define PMIC_GPIO_PULL_UP_1P5_30 3
+
+#define PMIC_GPIO_STRENGTH_NO 0
+#define PMIC_GPIO_STRENGTH_HIGH 1
+#define PMIC_GPIO_STRENGTH_MED 2
+#define PMIC_GPIO_STRENGTH_LOW 3
+
+/*
+ * Note: PM8018 GPIO3 and GPIO4 are supporting
+ * only S3 and L2 options (1.8V)
+ */
+#define PM8018_GPIO_L6 0
+#define PM8018_GPIO_L5 1
+#define PM8018_GPIO_S3 2
+#define PM8018_GPIO_L14 3
+#define PM8018_GPIO_L2 4
+#define PM8018_GPIO_L4 5
+#define PM8018_GPIO_VDD 6
+
+/*
+ * Note: PM8038 GPIO7 and GPIO8 are supporting
+ * only L11 and L4 options (1.8V)
+ */
+#define PM8038_GPIO_VPH 0
+#define PM8038_GPIO_BB 1
+#define PM8038_GPIO_L11 2
+#define PM8038_GPIO_L15 3
+#define PM8038_GPIO_L4 4
+#define PM8038_GPIO_L3 5
+#define PM8038_GPIO_L17 6
+
+#define PM8058_GPIO_VPH 0
+#define PM8058_GPIO_BB 1
+#define PM8058_GPIO_S3 2
+#define PM8058_GPIO_L3 3
+#define PM8058_GPIO_L7 4
+#define PM8058_GPIO_L6 5
+#define PM8058_GPIO_L5 6
+#define PM8058_GPIO_L2 7
+
+#define PM8917_GPIO_VPH 0
+#define PM8917_GPIO_S4 2
+#define PM8917_GPIO_L15 3
+#define PM8917_GPIO_L4 4
+#define PM8917_GPIO_L3 5
+#define PM8917_GPIO_L17 6
+
+#define PM8921_GPIO_VPH 0
+#define PM8921_GPIO_BB 1
+#define PM8921_GPIO_S4 2
+#define PM8921_GPIO_L15 3
+#define PM8921_GPIO_L4 4
+#define PM8921_GPIO_L3 5
+#define PM8921_GPIO_L17 6
+
+/*
+ * Note: PM8941 gpios from 15 to 18 are supporting
+ * only S3 and L6 options (1.8V)
+ */
+#define PM8941_GPIO_VPH 0
+#define PM8941_GPIO_L1 1
+#define PM8941_GPIO_S3 2
+#define PM8941_GPIO_L6 3
+
+/*
+ * Note: PMA8084 gpios from 15 to 18 are supporting
+ * only S4 and L6 options (1.8V)
+ */
+#define PMA8084_GPIO_VPH 0
+#define PMA8084_GPIO_L1 1
+#define PMA8084_GPIO_S4 2
+#define PMA8084_GPIO_L6 3
+
+/* To be used with "function" */
+#define PMIC_GPIO_FUNC_NORMAL "normal"
+#define PMIC_GPIO_FUNC_PAIRED "paired"
+#define PMIC_GPIO_FUNC_FUNC1 "func1"
+#define PMIC_GPIO_FUNC_FUNC2 "func2"
+#define PMIC_GPIO_FUNC_DTEST1 "dtest1"
+#define PMIC_GPIO_FUNC_DTEST2 "dtest2"
+#define PMIC_GPIO_FUNC_DTEST3 "dtest3"
+#define PMIC_GPIO_FUNC_DTEST4 "dtest4"
+
+#define PM8038_GPIO1_2_LPG_DRV PMIC_GPIO_FUNC_FUNC1
+#define PM8038_GPIO3_5V_BOOST_EN PMIC_GPIO_FUNC_FUNC1
+#define PM8038_GPIO4_SSBI_ALT_CLK PMIC_GPIO_FUNC_FUNC1
+#define PM8038_GPIO5_6_EXT_REG_EN PMIC_GPIO_FUNC_FUNC1
+#define PM8038_GPIO10_11_EXT_REG_EN PMIC_GPIO_FUNC_FUNC1
+#define PM8038_GPIO6_7_CLK PMIC_GPIO_FUNC_FUNC1
+#define PM8038_GPIO9_BAT_ALRM_OUT PMIC_GPIO_FUNC_FUNC1
+#define PM8038_GPIO6_12_KYPD_DRV PMIC_GPIO_FUNC_FUNC2
+
+#define PM8058_GPIO7_8_MP3_CLK PMIC_GPIO_FUNC_FUNC1
+#define PM8058_GPIO7_8_BCLK_19P2MHZ PMIC_GPIO_FUNC_FUNC2
+#define PM8058_GPIO9_26_KYPD_DRV PMIC_GPIO_FUNC_FUNC1
+#define PM8058_GPIO21_23_UART_TX PMIC_GPIO_FUNC_FUNC2
+#define PM8058_GPIO24_26_LPG_DRV PMIC_GPIO_FUNC_FUNC2
+#define PM8058_GPIO33_BCLK_19P2MHZ PMIC_GPIO_FUNC_FUNC1
+#define PM8058_GPIO34_35_MP3_CLK PMIC_GPIO_FUNC_FUNC1
+#define PM8058_GPIO36_BCLK_19P2MHZ PMIC_GPIO_FUNC_FUNC1
+#define PM8058_GPIO37_UPL_OUT PMIC_GPIO_FUNC_FUNC1
+#define PM8058_GPIO37_UART_M_RX PMIC_GPIO_FUNC_FUNC2
+#define PM8058_GPIO38_XO_SLEEP_CLK PMIC_GPIO_FUNC_FUNC1
+#define PM8058_GPIO38_39_CLK_32KHZ PMIC_GPIO_FUNC_FUNC2
+#define PM8058_GPIO39_MP3_CLK PMIC_GPIO_FUNC_FUNC1
+#define PM8058_GPIO40_EXT_BB_EN PMIC_GPIO_FUNC_FUNC1
+
+#define PM8917_GPIO9_18_KEYP_DRV PMIC_GPIO_FUNC_FUNC1
+#define PM8917_GPIO20_BAT_ALRM_OUT PMIC_GPIO_FUNC_FUNC1
+#define PM8917_GPIO21_23_UART_TX PMIC_GPIO_FUNC_FUNC2
+#define PM8917_GPIO25_26_EXT_REG_EN PMIC_GPIO_FUNC_FUNC1
+#define PM8917_GPIO37_38_XO_SLEEP_CLK PMIC_GPIO_FUNC_FUNC1
+#define PM8917_GPIO37_38_MP3_CLK PMIC_GPIO_FUNC_FUNC2
+
+#define PM8941_GPIO9_14_KYPD_DRV PMIC_GPIO_FUNC_FUNC1
+#define PM8941_GPIO15_18_DIV_CLK PMIC_GPIO_FUNC_FUNC1
+#define PM8941_GPIO15_18_SLEEP_CLK PMIC_GPIO_FUNC_FUNC2
+#define PM8941_GPIO23_26_KYPD_DRV PMIC_GPIO_FUNC_FUNC1
+#define PM8941_GPIO23_26_LPG_DRV_HI PMIC_GPIO_FUNC_FUNC2
+#define PM8941_GPIO31_BAT_ALRM_OUT PMIC_GPIO_FUNC_FUNC1
+#define PM8941_GPIO33_36_LPG_DRV_3D PMIC_GPIO_FUNC_FUNC1
+#define PM8941_GPIO33_36_LPG_DRV_HI PMIC_GPIO_FUNC_FUNC2
+
+#define PMA8084_GPIO4_5_LPG_DRV PMIC_GPIO_FUNC_FUNC1
+#define PMA8084_GPIO7_10_LPG_DRV PMIC_GPIO_FUNC_FUNC1
+#define PMA8084_GPIO5_14_KEYP_DRV PMIC_GPIO_FUNC_FUNC2
+#define PMA8084_GPIO19_21_KEYP_DRV PMIC_GPIO_FUNC_FUNC2
+#define PMA8084_GPIO15_18_DIV_CLK PMIC_GPIO_FUNC_FUNC1
+#define PMA8084_GPIO15_18_SLEEP_CLK PMIC_GPIO_FUNC_FUNC2
+#define PMA8084_GPIO22_BAT_ALRM_OUT PMIC_GPIO_FUNC_FUNC1
+
+#endif
--
cgit v1.2.1
From 89a7117d56d405b49b7d1f8ed30e01188e9d5a05 Mon Sep 17 00:00:00 2001
From: "Ivan T. Ivanov" <iivanov@mm-sol.com>
Date: Wed, 22 Oct 2014 12:58:45 +0300
Subject: pinctrl: Device tree bindings for Qualcomm PMIC MPP block
DeviceTree binding documentation for Qualcomm SPMI PMIC MPP
pinctrl drivers.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/dt-bindings/pinctrl/qcom,pmic-mpp.h | 44 +++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644 include/dt-bindings/pinctrl/qcom,pmic-mpp.h
(limited to 'include')
diff --git a/include/dt-bindings/pinctrl/qcom,pmic-mpp.h b/include/dt-bindings/pinctrl/qcom,pmic-mpp.h
new file mode 100644
index 000000000000..d2c7dabe3223
--- /dev/null
+++ b/include/dt-bindings/pinctrl/qcom,pmic-mpp.h
@@ -0,0 +1,44 @@
+/*
+ * This header provides constants for the Qualcomm PMIC's
+ * Multi-Purpose Pin binding.
+ */
+
+#ifndef _DT_BINDINGS_PINCTRL_QCOM_PMIC_MPP_H
+#define _DT_BINDINGS_PINCTRL_QCOM_PMIC_MPP_H
+
+/* power-source */
+#define PM8841_MPP_VPH 0
+#define PM8841_MPP_S3 2
+
+#define PM8941_MPP_VPH 0
+#define PM8941_MPP_L1 1
+#define PM8941_MPP_S3 2
+#define PM8941_MPP_L6 3
+
+#define PMA8084_MPP_VPH 0
+#define PMA8084_MPP_L1 1
+#define PMA8084_MPP_S4 2
+#define PMA8084_MPP_L6 3
+
+/*
+ * Analog Input - Set the source for analog input.
+ * To be used with "qcom,amux-route" property
+ */
+#define PMIC_MPP_AMUX_ROUTE_CH5 0
+#define PMIC_MPP_AMUX_ROUTE_CH6 1
+#define PMIC_MPP_AMUX_ROUTE_CH7 2
+#define PMIC_MPP_AMUX_ROUTE_CH8 3
+#define PMIC_MPP_AMUX_ROUTE_ABUS1 4
+#define PMIC_MPP_AMUX_ROUTE_ABUS2 5
+#define PMIC_MPP_AMUX_ROUTE_ABUS3 6
+#define PMIC_MPP_AMUX_ROUTE_ABUS4 7
+
+/* To be used with "function" */
+#define PMIC_MPP_FUNC_NORMAL "normal"
+#define PMIC_MPP_FUNC_PAIRED "paired"
+#define PMIC_MPP_FUNC_DTEST1 "dtest1"
+#define PMIC_MPP_FUNC_DTEST2 "dtest2"
+#define PMIC_MPP_FUNC_DTEST3 "dtest3"
+#define PMIC_MPP_FUNC_DTEST4 "dtest4"
+
+#endif
--
cgit v1.2.1
From c241c5eea822344639898512780cff823fc7d730 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 30 Sep 2014 13:18:23 -0400
Subject: HID: fix merge from wacom into the HID tree
While merging wacom from the input to the hid tree, some
comments have been duplicated. We can also integrate the
test for Synaptics devices in the switch case below, so
it is clear that there will be only one place for such
quirks.
No functional changes are expected in this commit.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/hid.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 78ea9bf941cd..5b1ff6110e25 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -312,10 +312,6 @@ struct hid_item {
* Vendor specific HID device groups
*/
#define HID_GROUP_RMI 0x0100
-
-/*
- * Vendor specific HID device groups
- */
#define HID_GROUP_WACOM 0x0101
/*
--
cgit v1.2.1
From d610274b0301e5ef35811fa736036d022f707564 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 30 Sep 2014 13:18:25 -0400
Subject: HID: logitech-dj: rely on hid groups to separate receivers from dj
devices
Several benefits here:
- we can drop the macro is_dj_device: I never been really conviced by
this macro as we could fall into a null pointer anytime. Anyway time
showed that this never happened.
- we can simplify the hid driver logitech-djdevice, and make it aware
of any new receiver VID/PID.
- we can use the Wireless PID of the DJ device as the product id of the
hid device, this way the sysfs will differentiate between different
DJ devices.
Signed-off-by: Benjamin Tisssoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/hid.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 5b1ff6110e25..7d6e0556302a 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -313,6 +313,7 @@ struct hid_item {
*/
#define HID_GROUP_RMI 0x0100
#define HID_GROUP_WACOM 0x0101
+#define HID_GROUP_LOGITECH_DJ_DEVICE 0x0102
/*
* This is the global environment of the parser. This information is
--
cgit v1.2.1
From de869917c663f44b5b032bff238bad22e15dda56 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Thu, 2 Oct 2014 06:45:38 +0200
Subject: mod_devicetable.h: grammar fix in comment
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/mod_devicetable.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 44eeef0da186..745def862580 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -69,7 +69,7 @@ struct ieee1394_device_id {
* @bDeviceClass: Class of device; numbers are assigned
* by the USB forum. Products may choose to implement classes,
* or be vendor-specific. Device classes specify behavior of all
- * the interfaces on a devices.
+ * the interfaces on a device.
* @bDeviceSubClass: Subclass of device; associated with bDeviceClass.
* @bDeviceProtocol: Protocol of device; associated with bDeviceClass.
* @bInterfaceClass: Class of interface; numbers are assigned
--
cgit v1.2.1
From 542cb4593104ae306970eb181ea42a01f1a79ed2 Mon Sep 17 00:00:00 2001
From: Finn Thain <fthain@telegraphics.com.au>
Date: Fri, 3 Oct 2014 11:42:17 +1000
Subject: scsi: Fix "choir" and "beeing" malaprops
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/scsi/scsi_host.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index ba2034779961..b286b5787c85 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -555,7 +555,7 @@ struct Scsi_Host {
* __devices is protected by the host_lock, but you should
* usually use scsi_device_lookup / shost_for_each_device
* to access it and don't care about locking yourself.
- * In the rare case of beeing in irq context you can use
+ * In the rare case of being in irq context you can use
* their __ prefixed variants with the lock held. NEVER
* access this list directly from a driver.
*/
--
cgit v1.2.1
From 9e3680b1750b9a62680b0262c9f438de98b77655 Mon Sep 17 00:00:00 2001
From: Heena Sirwani <heenasirwani@gmail.com>
Date: Wed, 29 Oct 2014 16:01:16 +0530
Subject: timekeeping: Provide fast accessor to the seconds part of
CLOCK_MONOTONIC
This is the counterpart to get_seconds() based on CLOCK_MONOTONIC. The
use case for this interface are kernel internal coarse grained
timestamps which do neither require the nanoseconds fraction of
current time nor the CLOCK_REALTIME properties. Such timestamps can
currently only retrieved by calling ktime_get_ts64() and using the
tv_sec field of the returned timespec64. That's inefficient as it
involves the read of the clocksource, math operations and must be
protected by the timekeeper sequence counter.
To avoid the sequence counter protection we restrict the return value
to unsigned 32bit on 32bit machines. This covers ~136 years of uptime
and therefor an overflow is not expected to hit anytime soon.
To avoid math in the function we calculate the current seconds portion
of CLOCK_MONOTONIC when the timekeeper gets updated in
tk_update_ktime_data() similar to the CLOCK_REALTIME counterpart
xtime_sec.
[ tglx: Massaged changelog, simplified and commented the update
function, added docbook comment ]
Signed-off-by: Heena Sirwani <heenasirwani@gmail.com>
Reviewed-by: Arnd Bergman <arnd@arndb.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: opw-kernel@googlegroups.com
Link: http://lkml.kernel.org/r/da0b63f4bdf3478909f92becb35861197da3a905.1414578445.git.heenasirwani@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/timekeeper_internal.h | 2 ++
include/linux/timekeeping.h | 1 +
2 files changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h
index 95640dcd1899..05af9a334893 100644
--- a/include/linux/timekeeper_internal.h
+++ b/include/linux/timekeeper_internal.h
@@ -42,6 +42,7 @@ struct tk_read_base {
* struct timekeeper - Structure holding internal timekeeping values.
* @tkr: The readout base structure
* @xtime_sec: Current CLOCK_REALTIME time in seconds
+ * @ktime_sec: Current CLOCK_MONOTONIC time in seconds
* @wall_to_monotonic: CLOCK_REALTIME to CLOCK_MONOTONIC offset
* @offs_real: Offset clock monotonic -> clock realtime
* @offs_boot: Offset clock monotonic -> clock boottime
@@ -77,6 +78,7 @@ struct tk_read_base {
struct timekeeper {
struct tk_read_base tkr;
u64 xtime_sec;
+ unsigned long ktime_sec;
struct timespec64 wall_to_monotonic;
ktime_t offs_real;
ktime_t offs_boot;
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 1caa6b04fdc5..115d55e11bc9 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -28,6 +28,7 @@ struct timespec __current_kernel_time(void);
struct timespec get_monotonic_coarse(void);
extern void getrawmonotonic(struct timespec *ts);
extern void ktime_get_ts64(struct timespec64 *ts);
+extern time64_t ktime_get_seconds(void);
extern int __getnstimeofday64(struct timespec64 *tv);
extern void getnstimeofday64(struct timespec64 *tv);
--
cgit v1.2.1
From dbe7aa622db96b5cd601f59d09c4f00b98b76079 Mon Sep 17 00:00:00 2001
From: Heena Sirwani <heenasirwani@gmail.com>
Date: Wed, 29 Oct 2014 16:01:50 +0530
Subject: timekeeping: Provide y2038 safe accessor to the seconds portion of
CLOCK_REALTIME
ktime_get_real_seconds() is the replacement function for get_seconds()
returning the seconds portion of CLOCK_REALTIME in a time64_t. For
64bit the function is equivivalent to get_seconds(), but for 32bit it
protects the readout with the timekeeper sequence count. This is
required because 32-bit machines cannot access 64-bit tk->xtime_sec
variable atomically.
[tglx: Massaged changelog and added docbook comment ]
Signed-off-by: Heena Sirwani <heenasirwani@gmail.com>
Reviewed-by: Arnd Bergman <arnd@arndb.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: opw-kernel@googlegroups.com
Link: http://lkml.kernel.org/r/7adcfaa8962b8ad58785d9a2456c3f77d93c0ffb.1414578445.git.heenasirwani@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/timekeeping.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 115d55e11bc9..91454dea2bc6 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -29,6 +29,7 @@ struct timespec get_monotonic_coarse(void);
extern void getrawmonotonic(struct timespec *ts);
extern void ktime_get_ts64(struct timespec64 *ts);
extern time64_t ktime_get_seconds(void);
+extern time64_t ktime_get_real_seconds(void);
extern int __getnstimeofday64(struct timespec64 *tv);
extern void getnstimeofday64(struct timespec64 *tv);
--
cgit v1.2.1
From 74c450521dd8d245b982da62592a18aa6f88b045 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Wed, 29 Oct 2014 11:14:52 -0600
Subject: blk-mq: add a 'list' parameter to ->queue_rq()
Since we have the notion of a 'last' request in a chain, we can use
this to have the hardware optimize the issuing of requests. Add
a list_head parameter to queue_rq that the driver can use to
temporarily store hw commands for issue when 'last' is true. If we
are doing a chain of requests, pass in a NULL list for the first
request to force issue of that immediately, then batch the remainder
for deferred issue until the last request has been sent.
Instead of adding yet another argument to the hot ->queue_rq path,
encapsulate the passed arguments in a blk_mq_queue_data structure.
This is passed as a constant, and has been tested as faster than
passing 4 (or even 3) args through ->queue_rq. Update drivers for
the new ->queue_rq() prototype. There are no functional changes
in this patch for drivers - if they don't use the passed in list,
then they will just queue requests individually like before.
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index c9be1589415a..be01d7a687d4 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -79,7 +79,13 @@ struct blk_mq_tag_set {
struct list_head tag_list;
};
-typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, struct request *, bool);
+struct blk_mq_queue_data {
+ struct request *rq;
+ struct list_head *list;
+ bool last;
+};
+
+typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, const struct blk_mq_queue_data *);
typedef struct blk_mq_hw_ctx *(map_queue_fn)(struct request_queue *, const int);
typedef enum blk_eh_timer_return (timeout_fn)(struct request *, bool);
typedef int (init_hctx_fn)(struct blk_mq_hw_ctx *, void *, unsigned int);
--
cgit v1.2.1
From e167dfb53cb85fde7b15f644e9dbef7ba31896b6 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Wed, 29 Oct 2014 11:18:26 -0600
Subject: blk-mq: add BLK_MQ_F_DEFER_ISSUE support flag
Drivers can now tell blk-mq if they take advantage of the deferred
issue through 'last' or not. If they do, don't do queue-direct
for sync IO. This is a preparation patch for the nvme conversion.
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index be01d7a687d4..c3b64ec5321e 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -146,6 +146,7 @@ enum {
BLK_MQ_F_TAG_SHARED = 1 << 1,
BLK_MQ_F_SG_MERGE = 1 << 2,
BLK_MQ_F_SYSFS_UP = 1 << 3,
+ BLK_MQ_F_DEFER_ISSUE = 1 << 4,
BLK_MQ_S_STOPPED = 0,
BLK_MQ_S_TAG_ACTIVE = 1,
--
cgit v1.2.1
From 28f6569ab7d036cd4ee94c26bb76dc1b3f3fc056 Mon Sep 17 00:00:00 2001
From: Pranith Kumar <bobby.prani@gmail.com>
Date: Mon, 22 Sep 2014 14:00:48 -0400
Subject: rcu: Remove redundant TREE_PREEMPT_RCU config option
PREEMPT_RCU and TREE_PREEMPT_RCU serve the same function after
TINY_PREEMPT_RCU has been removed. This patch removes TREE_PREEMPT_RCU
and uses PREEMPT_RCU config option in its place.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/init_task.h | 2 +-
include/linux/rcupdate.h | 6 +++---
include/linux/sched.h | 4 ++--
include/trace/events/rcu.h | 4 ++--
4 files changed, 8 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 77fc43f8fb72..d996aef8044f 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -102,7 +102,7 @@ extern struct group_info init_groups;
#define INIT_IDS
#endif
-#ifdef CONFIG_TREE_PREEMPT_RCU
+#ifdef CONFIG_PREEMPT_RCU
#define INIT_TASK_RCU_TREE_PREEMPT() \
.rcu_blocked_node = NULL,
#else
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a4a819ffb2d1..295bb4595de6 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -57,7 +57,7 @@ enum rcutorture_type {
INVALID_RCU_FLAVOR
};
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
void rcutorture_get_gp_data(enum rcutorture_type test_type, int *flags,
unsigned long *gpnum, unsigned long *completed);
void rcutorture_record_test_transition(void);
@@ -365,7 +365,7 @@ typedef void call_rcu_func_t(struct rcu_head *head,
void (*func)(struct rcu_head *head));
void wait_rcu_gp(call_rcu_func_t crf);
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
#include <linux/rcutree.h>
#elif defined(CONFIG_TINY_RCU)
#include <linux/rcutiny.h>
@@ -852,7 +852,7 @@ static inline void rcu_preempt_sleep_check(void)
*
* In non-preemptible RCU implementations (TREE_RCU and TINY_RCU),
* it is illegal to block while in an RCU read-side critical section.
- * In preemptible RCU implementations (TREE_PREEMPT_RCU) in CONFIG_PREEMPT
+ * In preemptible RCU implementations (PREEMPT_RCU) in CONFIG_PREEMPT
* kernel builds, RCU read-side critical sections may be preempted,
* but explicit blocking is illegal. Finally, in preemptible RCU
* implementations in real-time (with -rt patchset) kernel builds, RCU
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5e344bbe63ec..706a9f744909 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1278,9 +1278,9 @@ struct task_struct {
union rcu_special rcu_read_unlock_special;
struct list_head rcu_node_entry;
#endif /* #ifdef CONFIG_PREEMPT_RCU */
-#ifdef CONFIG_TREE_PREEMPT_RCU
+#ifdef CONFIG_PREEMPT_RCU
struct rcu_node *rcu_blocked_node;
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
#ifdef CONFIG_TASKS_RCU
unsigned long rcu_tasks_nvcsw;
bool rcu_tasks_holdout;
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index e335e7d8c6c2..c78e88ce5ea3 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -36,7 +36,7 @@ TRACE_EVENT(rcu_utilization,
#ifdef CONFIG_RCU_TRACE
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
/*
* Tracepoint for grace-period events. Takes a string identifying the
@@ -345,7 +345,7 @@ TRACE_EVENT(rcu_fqs,
__entry->cpu, __entry->qsevent)
);
-#endif /* #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) */
+#endif /* #if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU) */
/*
* Tracepoint for dyntick-idle entry/exit events. These take a string
--
cgit v1.2.1
From dca145ffaa8d39ea1904491ac81b92b7049372c0 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 27 Oct 2014 21:45:24 -0700
Subject: tcp: allow for bigger reordering level
While testing upcoming Yaogong patch (converting out of order queue
into an RB tree), I hit the max reordering level of linux TCP stack.
Reordering level was limited to 127 for no good reason, and some
network setups [1] can easily reach this limit and get limited
throughput.
Allow a new max limit of 300, and add a sysctl to allow admins to even
allow bigger (or lower) values if needed.
[1] Aggregation of links, per packet load balancing, fabrics not doing
deep packet inspections, alternative TCP congestion modules...
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yaogong Wang <wygivan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/tcp.h | 4 ++--
include/net/tcp.h | 4 +---
2 files changed, 3 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index c2dee7deefa8..f566b8567892 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -204,10 +204,10 @@ struct tcp_sock {
u16 urg_data; /* Saved octet of OOB data and control flags */
u8 ecn_flags; /* ECN status bits. */
- u8 reordering; /* Packet reordering metric. */
+ u8 keepalive_probes; /* num of allowed keep alive probes */
+ u32 reordering; /* Packet reordering metric. */
u32 snd_up; /* Urgent pointer */
- u8 keepalive_probes; /* num of allowed keep alive probes */
/*
* Options received (usually on last packet, some only on SYN packets).
*/
diff --git a/include/net/tcp.h b/include/net/tcp.h
index c73fc145ee45..3a35b1500359 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -70,9 +70,6 @@ void tcp_time_wait(struct sock *sk, int state, int timeo);
/* After receiving this amount of duplicate ACKs fast retransmit starts. */
#define TCP_FASTRETRANS_THRESH 3
-/* Maximal reordering. */
-#define TCP_MAX_REORDERING 127
-
/* Maximal number of ACKs sent quickly to accelerate slow-start. */
#define TCP_MAX_QUICKACKS 16U
@@ -252,6 +249,7 @@ extern int sysctl_tcp_abort_on_overflow;
extern int sysctl_tcp_max_orphans;
extern int sysctl_tcp_fack;
extern int sysctl_tcp_reordering;
+extern int sysctl_tcp_max_reordering;
extern int sysctl_tcp_dsack;
extern long sysctl_tcp_mem[3];
extern int sysctl_tcp_wmem[3];
--
cgit v1.2.1
From 7fd2561e4ebdd070ebba6d3326c4c5b13942323f Mon Sep 17 00:00:00 2001
From: Erik Kline <ek@google.com>
Date: Tue, 28 Oct 2014 18:11:14 +0900
Subject: net: ipv6: Add a sysctl to make optimistic addresses useful
candidates
Add a sysctl that causes an interface's optimistic addresses
to be considered equivalent to other non-deprecated addresses
for source address selection purposes. Preferred addresses
will still take precedence over optimistic addresses, subject
to other ranking in the source address selection algorithm.
This is useful where different interfaces are connected to
different networks from different ISPs (e.g., a cell network
and a home wifi network).
The current behaviour complies with RFC 3484/6724, and it
makes sense if the host has only one interface, or has
multiple interfaces on the same network (same or cooperating
administrative domain(s), but not in the multiple distinct
networks case.
For example, if a mobile device has an IPv6 address on an LTE
network and then connects to IPv6-enabled wifi, while the wifi
IPv6 address is undergoing DAD, IPv6 connections will try use
the wifi default route with the LTE IPv6 address, and will get
stuck until they time out.
Also, because optimistic nodes can receive frames, issue
an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC
flag appropriately set). A second RTM_NEWADDR is sent if DAD
completes (the address flags have changed), otherwise an
RTM_DELADDR is sent.
Also: add an entry in ip-sysctl.txt for optimistic_dad.
Signed-off-by: Erik Kline <ek@google.com>
Acked-by: Lorenzo Colitti <lorenzo@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/ipv6.h | 1 +
include/uapi/linux/ipv6.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index ff560537dd61..7121a2e97ce2 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -42,6 +42,7 @@ struct ipv6_devconf {
__s32 accept_ra_from_local;
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
__s32 optimistic_dad;
+ __s32 use_optimistic;
#endif
#ifdef CONFIG_IPV6_MROUTE
__s32 mc_forwarding;
diff --git a/include/uapi/linux/ipv6.h b/include/uapi/linux/ipv6.h
index efa2666f4b8a..e863d088b9a5 100644
--- a/include/uapi/linux/ipv6.h
+++ b/include/uapi/linux/ipv6.h
@@ -164,6 +164,7 @@ enum {
DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL,
DEVCONF_SUPPRESS_FRAG_NDISC,
DEVCONF_ACCEPT_RA_FROM_LOCAL,
+ DEVCONF_USE_OPTIMISTIC,
DEVCONF_MAX
};
--
cgit v1.2.1
From bc9ad166e38ae1cdcb5323a8aa45dff834d68bfa Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 28 Oct 2014 18:05:13 -0700
Subject: net: introduce napi_schedule_irqoff()
napi_schedule() can be called from any context and has to mask hard
irqs.
Add a variant that can only be called from hard interrupts handlers
or when irqs are already masked.
Many NIC drivers can use it from their hard IRQ handler instead of
generic variant.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 74fd5d37f15a..c85e06512246 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -386,6 +386,7 @@ typedef enum rx_handler_result rx_handler_result_t;
typedef rx_handler_result_t rx_handler_func_t(struct sk_buff **pskb);
void __napi_schedule(struct napi_struct *n);
+void __napi_schedule_irqoff(struct napi_struct *n);
static inline bool napi_disable_pending(struct napi_struct *n)
{
@@ -420,6 +421,18 @@ static inline void napi_schedule(struct napi_struct *n)
__napi_schedule(n);
}
+/**
+ * napi_schedule_irqoff - schedule NAPI poll
+ * @n: napi context
+ *
+ * Variant of napi_schedule(), assuming hard irqs are masked.
+ */
+static inline void napi_schedule_irqoff(struct napi_struct *n)
+{
+ if (napi_schedule_prep(n))
+ __napi_schedule_irqoff(n);
+}
+
/* Try to reschedule poll. Called by dev->poll() after napi_complete(). */
static inline bool napi_reschedule(struct napi_struct *napi)
{
--
cgit v1.2.1
From 75fbfd33234a71556bec34b099d98f970190905d Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 29 Oct 2014 19:29:31 +0100
Subject: neigh: optimize neigh_parms_release()
In neigh_parms_release() we loop over all entries to find the entry given in
argument and being able to remove it from the list. By using a double linked
list, we can avoid this loop.
Here are some numbers with 30 000 dummy interfaces configured:
Before the patch:
$ time rmmod dummy
real 2m0.118s
user 0m0.000s
sys 1m50.048s
After the patch:
$ time rmmod dummy
real 1m9.970s
user 0m0.000s
sys 0m47.976s
Suggested-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/neighbour.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index f60558d0254c..dedfb188b1a7 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -69,7 +69,7 @@ struct neigh_parms {
struct net *net;
#endif
struct net_device *dev;
- struct neigh_parms *next;
+ struct list_head list;
int (*neigh_setup)(struct neighbour *);
void (*neigh_cleanup)(struct neighbour *);
struct neigh_table *tbl;
@@ -203,6 +203,7 @@ struct neigh_table {
void (*proxy_redo)(struct sk_buff *skb);
char *id;
struct neigh_parms parms;
+ struct list_head parms_list;
int gc_interval;
int gc_thresh1;
int gc_thresh2;
--
cgit v1.2.1
From 90a6161df57e7943cdd575ce95c1c62b468407e3 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 29 Oct 2014 21:34:29 +0100
Subject: mac802154: remove tab after define
This patch removes tabs after define in hardware flags declarations.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 85a4efca418b..fe1495796ce7 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -74,22 +74,22 @@ struct ieee802154_hw {
*/
/* Indicates that receiver omits FCS and xmitter will add FCS on it's own. */
-#define IEEE802154_HW_OMIT_CKSUM 0x00000001
+#define IEEE802154_HW_OMIT_CKSUM 0x00000001
/* Indicates that receiver will autorespond with ACK frames. */
-#define IEEE802154_HW_AACK 0x00000002
+#define IEEE802154_HW_AACK 0x00000002
/* Indicates that transceiver will support transmit power setting. */
-#define IEEE802154_HW_TXPOWER 0x00000004
+#define IEEE802154_HW_TXPOWER 0x00000004
/* Indicates that transceiver will support listen before transmit. */
-#define IEEE802154_HW_LBT 0x00000008
+#define IEEE802154_HW_LBT 0x00000008
/* Indicates that transceiver will support cca mode setting. */
-#define IEEE802154_HW_CCA_MODE 0x00000010
+#define IEEE802154_HW_CCA_MODE 0x00000010
/* Indicates that transceiver will support cca ed level setting. */
-#define IEEE802154_HW_CCA_ED_LEVEL 0x00000020
+#define IEEE802154_HW_CCA_ED_LEVEL 0x00000020
/* Indicates that transceiver will support csma (max_be, min_be, csma retries)
* settings. */
-#define IEEE802154_HW_CSMA_PARAMS 0x00000040
+#define IEEE802154_HW_CSMA_PARAMS 0x00000040
/* Indicates that transceiver will support ARET frame retries setting. */
-#define IEEE802154_HW_FRAME_RETRIES 0x00000080
+#define IEEE802154_HW_FRAME_RETRIES 0x00000080
/* This groups the most common CSMA support fields into one. */
#define IEEE802154_HW_CSMA (IEEE802154_HW_CCA_MODE | \
--
cgit v1.2.1
From ab79be3eebf28be5315e43d0002ebcc05858af0b Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 29 Oct 2014 21:34:30 +0100
Subject: mac802154: add IEEE802154_HW_ARET hw flag
This patch adds a new IEEE802154_HW_ARET hardware flag for indicating
that the transceiver supports ARET handling. Also remove the
IEEE802154_HW_FRAME_RETRIES from IEEE802154_HW_CSMA flag. Frame retries
handling is part of ARET.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index fe1495796ce7..c5d79384847a 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -94,7 +94,10 @@ struct ieee802154_hw {
/* This groups the most common CSMA support fields into one. */
#define IEEE802154_HW_CSMA (IEEE802154_HW_CCA_MODE | \
IEEE802154_HW_CCA_ED_LEVEL | \
- IEEE802154_HW_CSMA_PARAMS | \
+ IEEE802154_HW_CSMA_PARAMS)
+
+/* This groups the most common ARET support fields into one. */
+#define IEEE802154_HW_ARET (IEEE802154_HW_CSMA | \
IEEE802154_HW_FRAME_RETRIES)
/* struct ieee802154_ops - callbacks from mac802154 to the driver
--
cgit v1.2.1
From c8fc84ed60f0ec85ab71f6026add1523523e4bd5 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 29 Oct 2014 21:34:31 +0100
Subject: mac802154: add hardware address filter flag
Overdue introduction for address filtering hardware flag. Furthermore we
will check and set address filtering on interface up. This patch
prepares that we can check if an transceiver supports address filtering
option. Currently all mainline driver supports hardware address filtering.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Cc: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index c5d79384847a..2f523fc1bf80 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -90,6 +90,8 @@ struct ieee802154_hw {
#define IEEE802154_HW_CSMA_PARAMS 0x00000040
/* Indicates that transceiver will support ARET frame retries setting. */
#define IEEE802154_HW_FRAME_RETRIES 0x00000080
+/* Indicates that transceiver will support hardware address filter setting. */
+#define IEEE802154_HW_AFILT 0x00000100
/* This groups the most common CSMA support fields into one. */
#define IEEE802154_HW_CSMA (IEEE802154_HW_CCA_MODE | \
--
cgit v1.2.1
From 94b792220ca9c080f4d1da8060f4c892c1b3b025 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 29 Oct 2014 21:34:32 +0100
Subject: mac802154: add support for promiscuous mode
This patch adds a new driver operation to bring the transceiver into
promiscuous mode.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 2f523fc1bf80..166ef6c52180 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -92,6 +92,8 @@ struct ieee802154_hw {
#define IEEE802154_HW_FRAME_RETRIES 0x00000080
/* Indicates that transceiver will support hardware address filter setting. */
#define IEEE802154_HW_AFILT 0x00000100
+/* Indicates that transceiver will support promiscuous mode setting. */
+#define IEEE802154_HW_PROMISCUOUS 0x00000200
/* This groups the most common CSMA support fields into one. */
#define IEEE802154_HW_CSMA (IEEE802154_HW_CCA_MODE | \
@@ -173,6 +175,9 @@ struct ieee802154_hw {
* set_frame_retries
* Sets the retransmission attempt limit. Called with pib_lock held.
* Returns either zero, or negative errno.
+ *
+ * set_promiscuous_mode
+ * Enables or disable promiscuous mode.
*/
struct ieee802154_ops {
struct module *owner;
@@ -197,6 +202,8 @@ struct ieee802154_ops {
u8 min_be, u8 max_be, u8 retries);
int (*set_frame_retries)(struct ieee802154_hw *hw,
s8 retries);
+ int (*set_promiscuous_mode)(struct ieee802154_hw *hw,
+ const bool on);
};
/* Basic interface to register ieee802154 hwice */
--
cgit v1.2.1
From 90386a7e3bcce60b6b83d0d1bd65d7b55a77fa60 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 29 Oct 2014 21:34:34 +0100
Subject: mac802154: separate omit tx/rx flags
This patch splits the IEEE802154_HW_OMIT_CKSUM hardware flag into
IEEE802154_HW_TX_OMIT_CKSUM and IEEE802154_HW_RX_OMIT_CKSUM. This is
useful to deliver the received crc from the driver layer to the monitor
interface. At the moment we can't do that without change the xmit
handling.
The received checksum should be visible in monitor mode only.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 166ef6c52180..bc1d40c826e3 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -73,8 +73,8 @@ struct ieee802154_hw {
* however, so you are advised to review these flags carefully.
*/
-/* Indicates that receiver omits FCS and xmitter will add FCS on it's own. */
-#define IEEE802154_HW_OMIT_CKSUM 0x00000001
+/* Indicates that xmitter will add FCS on it's own. */
+#define IEEE802154_HW_TX_OMIT_CKSUM 0x00000001
/* Indicates that receiver will autorespond with ACK frames. */
#define IEEE802154_HW_AACK 0x00000002
/* Indicates that transceiver will support transmit power setting. */
@@ -94,6 +94,12 @@ struct ieee802154_hw {
#define IEEE802154_HW_AFILT 0x00000100
/* Indicates that transceiver will support promiscuous mode setting. */
#define IEEE802154_HW_PROMISCUOUS 0x00000200
+/* Indicates that receiver omits FCS. */
+#define IEEE802154_HW_RX_OMIT_CKSUM 0x00000400
+
+/* Indicates that receiver omits FCS and xmitter will add FCS on it's own. */
+#define IEEE802154_HW_OMIT_CKSUM (IEEE802154_HW_TX_OMIT_CKSUM | \
+ IEEE802154_HW_RX_OMIT_CKSUM)
/* This groups the most common CSMA support fields into one. */
#define IEEE802154_HW_CSMA (IEEE802154_HW_CCA_MODE | \
--
cgit v1.2.1
From ec718f3db9b7968ca5dfb10c85c56ff27149df94 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 29 Oct 2014 21:34:37 +0100
Subject: mac802154: rx: add software checksum filtering check
This patch adds a new hardware flag which indicate that the transceiver
doesn't support check for bad checksum via hardware. Also add a handling of
this while receive.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index bc1d40c826e3..8f1de6844cb0 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -96,6 +96,8 @@ struct ieee802154_hw {
#define IEEE802154_HW_PROMISCUOUS 0x00000200
/* Indicates that receiver omits FCS. */
#define IEEE802154_HW_RX_OMIT_CKSUM 0x00000400
+/* Indicates that receiver will not filter frames with bad checksum. */
+#define IEEE802154_HW_RX_DROP_BAD_CKSUM 0x00000800
/* Indicates that receiver omits FCS and xmitter will add FCS on it's own. */
#define IEEE802154_HW_OMIT_CKSUM (IEEE802154_HW_TX_OMIT_CKSUM | \
--
cgit v1.2.1
From 47f29df7db78ee4fcdb104cf36918d987ddd0278 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Wed, 29 Oct 2014 14:50:29 -0700
Subject: drivers: of: add return value to of_reserved_mem_device_init()
Driver calling of_reserved_mem_device_init() might be interested if the
initialization has been successful or not, so add support for returning
error code.
This fixes a build warining caused by commit 7bfa5ab6fa1b ("drivers:
dma-coherent: add initialization from device tree"), which has been
merged without this change and without fixing function return value.
Fixes: 7bfa5ab6fa1b1 ("drivers: dma-coherent: add initialization from device tree")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Laura Abbott <lauraa@codeaurora.org>
Cc: Josh Cartwright <joshc@codeaurora.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/of_reserved_mem.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/of_reserved_mem.h b/include/linux/of_reserved_mem.h
index 5b5efae09135..ad2f67054372 100644
--- a/include/linux/of_reserved_mem.h
+++ b/include/linux/of_reserved_mem.h
@@ -16,7 +16,7 @@ struct reserved_mem {
};
struct reserved_mem_ops {
- void (*device_init)(struct reserved_mem *rmem,
+ int (*device_init)(struct reserved_mem *rmem,
struct device *dev);
void (*device_release)(struct reserved_mem *rmem,
struct device *dev);
@@ -28,14 +28,17 @@ typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);
_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
#ifdef CONFIG_OF_RESERVED_MEM
-void of_reserved_mem_device_init(struct device *dev);
+int of_reserved_mem_device_init(struct device *dev);
void of_reserved_mem_device_release(struct device *dev);
void fdt_init_reserved_mem(void);
void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
phys_addr_t base, phys_addr_t size);
#else
-static inline void of_reserved_mem_device_init(struct device *dev) { }
+static inline int of_reserved_mem_device_init(struct device *dev)
+{
+ return -ENOSYS;
+}
static inline void of_reserved_mem_device_release(struct device *pdev) { }
static inline void fdt_init_reserved_mem(void) { }
--
cgit v1.2.1
From 6d50e60cd2edb5a57154db5a6f64eef5aa59b751 Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Wed, 29 Oct 2014 14:50:31 -0700
Subject: mm, thp: fix collapsing of hugepages on madvise
If an anonymous mapping is not allowed to fault thp memory and then
madvise(MADV_HUGEPAGE) is used after fault, khugepaged will never
collapse this memory into thp memory.
This occurs because the madvise(2) handler for thp, hugepage_madvise(),
clears VM_NOHUGEPAGE on the stack and it isn't stored in vma->vm_flags
until the final action of madvise_behavior(). This causes the
khugepaged_enter_vma_merge() to be a no-op in hugepage_madvise() when
the vma had previously had VM_NOHUGEPAGE set.
Fix this by passing the correct vma flags to the khugepaged mm slot
handler. There's no chance khugepaged can run on this vma until after
madvise_behavior() returns since we hold mm->mmap_sem.
It would be possible to clear VM_NOHUGEPAGE directly from vma->vm_flags
in hugepage_advise(), but I didn't want to introduce special case
behavior into madvise_behavior(). I think it's best to just let it
always set vma->vm_flags itself.
Signed-off-by: David Rientjes <rientjes@google.com>
Reported-by: Suleiman Souhlal <suleiman@google.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/khugepaged.h | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h
index 6b394f0b5148..eeb307985715 100644
--- a/include/linux/khugepaged.h
+++ b/include/linux/khugepaged.h
@@ -6,7 +6,8 @@
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
extern int __khugepaged_enter(struct mm_struct *mm);
extern void __khugepaged_exit(struct mm_struct *mm);
-extern int khugepaged_enter_vma_merge(struct vm_area_struct *vma);
+extern int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
+ unsigned long vm_flags);
#define khugepaged_enabled() \
(transparent_hugepage_flags & \
@@ -35,13 +36,13 @@ static inline void khugepaged_exit(struct mm_struct *mm)
__khugepaged_exit(mm);
}
-static inline int khugepaged_enter(struct vm_area_struct *vma)
+static inline int khugepaged_enter(struct vm_area_struct *vma,
+ unsigned long vm_flags)
{
if (!test_bit(MMF_VM_HUGEPAGE, &vma->vm_mm->flags))
if ((khugepaged_always() ||
- (khugepaged_req_madv() &&
- vma->vm_flags & VM_HUGEPAGE)) &&
- !(vma->vm_flags & VM_NOHUGEPAGE))
+ (khugepaged_req_madv() && (vm_flags & VM_HUGEPAGE))) &&
+ !(vm_flags & VM_NOHUGEPAGE))
if (__khugepaged_enter(vma->vm_mm))
return -ENOMEM;
return 0;
@@ -54,11 +55,13 @@ static inline int khugepaged_fork(struct mm_struct *mm, struct mm_struct *oldmm)
static inline void khugepaged_exit(struct mm_struct *mm)
{
}
-static inline int khugepaged_enter(struct vm_area_struct *vma)
+static inline int khugepaged_enter(struct vm_area_struct *vma,
+ unsigned long vm_flags)
{
return 0;
}
-static inline int khugepaged_enter_vma_merge(struct vm_area_struct *vma)
+static inline int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
+ unsigned long vm_flags)
{
return 0;
}
--
cgit v1.2.1
From 3a3c02ecf7f2852f122d6d16fb9b3d9cb0c6f201 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 29 Oct 2014 14:50:46 -0700
Subject: mm: page-writeback: inline account_page_dirtied() into single caller
A follow-up patch would have changed the call signature. To save the
trouble, just fold it instead.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: <stable@vger.kernel.org> [3.17.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 27eb1bfbe704..b46461116cd2 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1235,7 +1235,6 @@ int __set_page_dirty_no_writeback(struct page *page);
int redirty_page_for_writepage(struct writeback_control *wbc,
struct page *page);
void account_page_dirtied(struct page *page, struct address_space *mapping);
-void account_page_writeback(struct page *page);
int set_page_dirty(struct page *page);
int set_page_dirty_lock(struct page *page);
int clear_page_dirty_for_io(struct page *page);
--
cgit v1.2.1
From d7365e783edb858279be1d03f61bc8d5d3383d90 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 29 Oct 2014 14:50:48 -0700
Subject: mm: memcontrol: fix missed end-writeback page accounting
Commit 0a31bc97c80c ("mm: memcontrol: rewrite uncharge API") changed
page migration to uncharge the old page right away. The page is locked,
unmapped, truncated, and off the LRU, but it could race with writeback
ending, which then doesn't unaccount the page properly:
test_clear_page_writeback() migration
wait_on_page_writeback()
TestClearPageWriteback()
mem_cgroup_migrate()
clear PCG_USED
mem_cgroup_update_page_stat()
if (PageCgroupUsed(pc))
decrease memcg pages under writeback
release pc->mem_cgroup->move_lock
The per-page statistics interface is heavily optimized to avoid a
function call and a lookup_page_cgroup() in the file unmap fast path,
which means it doesn't verify whether a page is still charged before
clearing PageWriteback() and it has to do it in the stat update later.
Rework it so that it looks up the page's memcg once at the beginning of
the transaction and then uses it throughout. The charge will be
verified before clearing PageWriteback() and migration can't uncharge
the page as long as that is still set. The RCU lock will protect the
memcg past uncharge.
As far as losing the optimization goes, the following test results are
from a microbenchmark that maps, faults, and unmaps a 4GB sparse file
three times in a nested fashion, so that there are two negative passes
that don't account but still go through the new transaction overhead.
There is no actual difference:
old: 33.195102545 seconds time elapsed ( +- 0.01% )
new: 33.199231369 seconds time elapsed ( +- 0.03% )
The time spent in page_remove_rmap()'s callees still adds up to the
same, but the time spent in the function itself seems reduced:
# Children Self Command Shared Object Symbol
old: 0.12% 0.11% filemapstress [kernel.kallsyms] [k] page_remove_rmap
new: 0.12% 0.08% filemapstress [kernel.kallsyms] [k] page_remove_rmap
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: <stable@vger.kernel.org> [3.17.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 58 ++++++++++++++--------------------------------
1 file changed, 17 insertions(+), 41 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 19df5d857411..6b75640ef5ab 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -139,48 +139,23 @@ static inline bool mem_cgroup_disabled(void)
return false;
}
-void __mem_cgroup_begin_update_page_stat(struct page *page, bool *locked,
- unsigned long *flags);
-
-extern atomic_t memcg_moving;
-
-static inline void mem_cgroup_begin_update_page_stat(struct page *page,
- bool *locked, unsigned long *flags)
-{
- if (mem_cgroup_disabled())
- return;
- rcu_read_lock();
- *locked = false;
- if (atomic_read(&memcg_moving))
- __mem_cgroup_begin_update_page_stat(page, locked, flags);
-}
-
-void __mem_cgroup_end_update_page_stat(struct page *page,
- unsigned long *flags);
-static inline void mem_cgroup_end_update_page_stat(struct page *page,
- bool *locked, unsigned long *flags)
-{
- if (mem_cgroup_disabled())
- return;
- if (*locked)
- __mem_cgroup_end_update_page_stat(page, flags);
- rcu_read_unlock();
-}
-
-void mem_cgroup_update_page_stat(struct page *page,
- enum mem_cgroup_stat_index idx,
- int val);
-
-static inline void mem_cgroup_inc_page_stat(struct page *page,
+struct mem_cgroup *mem_cgroup_begin_page_stat(struct page *page, bool *locked,
+ unsigned long *flags);
+void mem_cgroup_end_page_stat(struct mem_cgroup *memcg, bool locked,
+ unsigned long flags);
+void mem_cgroup_update_page_stat(struct mem_cgroup *memcg,
+ enum mem_cgroup_stat_index idx, int val);
+
+static inline void mem_cgroup_inc_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
- mem_cgroup_update_page_stat(page, idx, 1);
+ mem_cgroup_update_page_stat(memcg, idx, 1);
}
-static inline void mem_cgroup_dec_page_stat(struct page *page,
+static inline void mem_cgroup_dec_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
- mem_cgroup_update_page_stat(page, idx, -1);
+ mem_cgroup_update_page_stat(memcg, idx, -1);
}
unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
@@ -315,13 +290,14 @@ mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p)
{
}
-static inline void mem_cgroup_begin_update_page_stat(struct page *page,
+static inline struct mem_cgroup *mem_cgroup_begin_page_stat(struct page *page,
bool *locked, unsigned long *flags)
{
+ return NULL;
}
-static inline void mem_cgroup_end_update_page_stat(struct page *page,
- bool *locked, unsigned long *flags)
+static inline void mem_cgroup_end_page_stat(struct mem_cgroup *memcg,
+ bool locked, unsigned long flags)
{
}
@@ -343,12 +319,12 @@ static inline bool mem_cgroup_oom_synchronize(bool wait)
return false;
}
-static inline void mem_cgroup_inc_page_stat(struct page *page,
+static inline void mem_cgroup_inc_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
}
-static inline void mem_cgroup_dec_page_stat(struct page *page,
+static inline void mem_cgroup_dec_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx)
{
}
--
cgit v1.2.1
From 1f33c41c03daece85a84b8dcea5733f3efe3e2b0 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 29 Sep 2014 16:08:21 -0700
Subject: seq_file: Rename seq_overflow() to seq_has_overflowed() and make
public
The return values of seq_printf/puts/putc are frequently misused.
Start down a path to remove all the return value uses of these
functions.
Move the seq_overflow() to a global inlined function called
seq_has_overflowed() that can be used by the users of seq_file() calls.
Update the documentation to not show return types for seq_printf
et al. Add a description of seq_has_overflowed().
Link: http://lkml.kernel.org/p/848ac7e3d1c31cddf638a8526fa3c59fa6fdeb8a.1412031505.git.joe@perches.com
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Joe Perches <joe@perches.com>
[ Reworked the original patch from Joe ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_file.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 52e0097f61f0..cf6a9daaaf6d 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -42,6 +42,21 @@ struct seq_operations {
#define SEQ_SKIP 1
+/**
+ * seq_has_overflowed - check if the buffer has overflowed
+ * @m: the seq_file handle
+ *
+ * seq_files have a buffer which may overflow. When this happens a larger
+ * buffer is reallocated and all the data will be printed again.
+ * The overflow state is true when m->count == m->size.
+ *
+ * Returns true if the buffer received more than it can hold.
+ */
+static inline bool seq_has_overflowed(struct seq_file *m)
+{
+ return m->count == m->size;
+}
+
/**
* seq_get_buf - get buffer to write arbitrary data to
* @m: the seq_file handle
--
cgit v1.2.1
From 3ab84ee95ba4e28b30fd8ec7c38f5e9f72c4b4b7 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Fri, 12 Sep 2014 15:15:20 +0200
Subject: ARM: shmobile: r8a7740 dtsi: Add missing INTCA clock for irqpin
module
This clock drives the INTCA irqpin controller modules.
Before, it was assumed enabled by the bootloader or reset state.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: devicetree@vger.kernel.org
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7740-clock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7740-clock.h b/include/dt-bindings/clock/r8a7740-clock.h
index f6b4b0fe7a43..476135da0f23 100644
--- a/include/dt-bindings/clock/r8a7740-clock.h
+++ b/include/dt-bindings/clock/r8a7740-clock.h
@@ -40,6 +40,7 @@
/* MSTP2 */
#define R8A7740_CLK_SCIFA6 30
+#define R8A7740_CLK_INTCA 29
#define R8A7740_CLK_SCIFA7 22
#define R8A7740_CLK_DMAC1 18
#define R8A7740_CLK_DMAC2 17
--
cgit v1.2.1
From 2284ff5f3f7d58e33812f4387c2ac8a09428e4cf Mon Sep 17 00:00:00 2001
From: Kouei Abe <kouei.abe.cp@renesas.com>
Date: Tue, 14 Oct 2014 16:01:40 +0900
Subject: ARM: shmobile: r8a7790: Add RGX clock to device tree
Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7790-clock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7790-clock.h b/include/dt-bindings/clock/r8a7790-clock.h
index 8ea7ab0346ad..14a3f12d13cd 100644
--- a/include/dt-bindings/clock/r8a7790-clock.h
+++ b/include/dt-bindings/clock/r8a7790-clock.h
@@ -28,6 +28,7 @@
/* MSTP1 */
#define R8A7790_CLK_JPU 6
#define R8A7790_CLK_TMU1 11
+#define R8A7790_CLK_3DG 12
#define R8A7790_CLK_TMU3 21
#define R8A7790_CLK_TMU2 22
#define R8A7790_CLK_CMT0 24
--
cgit v1.2.1
From e4d2fd9eb43d12e9b6a7ab842bf6986b4dd75a1d Mon Sep 17 00:00:00 2001
From: Kouei Abe <kouei.abe.cp@renesas.com>
Date: Tue, 14 Oct 2014 16:01:41 +0900
Subject: ARM: shmobile: r8a7791: Add SGX clock to device tree
Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7791-clock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7791-clock.h b/include/dt-bindings/clock/r8a7791-clock.h
index 58c3f49d068c..9570b7c2eedc 100644
--- a/include/dt-bindings/clock/r8a7791-clock.h
+++ b/include/dt-bindings/clock/r8a7791-clock.h
@@ -27,6 +27,7 @@
/* MSTP1 */
#define R8A7791_CLK_JPU 6
#define R8A7791_CLK_TMU1 11
+#define R8A7791_CLK_3DG 12
#define R8A7791_CLK_TMU3 21
#define R8A7791_CLK_TMU2 22
#define R8A7791_CLK_CMT0 24
--
cgit v1.2.1
From 4ba8f2468ce346642b4ace3cdf4bdd8d29175011 Mon Sep 17 00:00:00 2001
From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Date: Tue, 14 Oct 2014 16:01:42 +0900
Subject: ARM: shmobile: r8a7790: Add MMP clock to device tree
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7790-clock.h | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7790-clock.h b/include/dt-bindings/clock/r8a7790-clock.h
index 14a3f12d13cd..e3a3fb80feb6 100644
--- a/include/dt-bindings/clock/r8a7790-clock.h
+++ b/include/dt-bindings/clock/r8a7790-clock.h
@@ -26,9 +26,18 @@
#define R8A7790_CLK_MSIOF0 0
/* MSTP1 */
-#define R8A7790_CLK_JPU 6
+#define R8A7790_CLK_VCP1 0
+#define R8A7790_CLK_VCP0 1
+#define R8A7790_CLK_VPC1 2
+#define R8A7790_CLK_VPC0 3
+#define R8A7790_CLK_JPU 6
+#define R8A7790_CLK_SSP1 9
#define R8A7790_CLK_TMU1 11
#define R8A7790_CLK_3DG 12
+#define R8A7790_CLK_2DDMAC 15
+#define R8A7790_CLK_FDP1_2 17
+#define R8A7790_CLK_FDP1_1 18
+#define R8A7790_CLK_FDP1_0 19
#define R8A7790_CLK_TMU3 21
#define R8A7790_CLK_TMU2 22
#define R8A7790_CLK_CMT0 24
--
cgit v1.2.1
From 74d89d25f6b0d84f7cd2fc09dc708177787c1465 Mon Sep 17 00:00:00 2001
From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Date: Tue, 14 Oct 2014 16:01:43 +0900
Subject: ARM: shmobile: r8a7791: Add MMP clock to device tree
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7791-clock.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7791-clock.h b/include/dt-bindings/clock/r8a7791-clock.h
index 9570b7c2eedc..dcececd9f4d0 100644
--- a/include/dt-bindings/clock/r8a7791-clock.h
+++ b/include/dt-bindings/clock/r8a7791-clock.h
@@ -25,9 +25,15 @@
#define R8A7791_CLK_MSIOF0 0
/* MSTP1 */
-#define R8A7791_CLK_JPU 6
+#define R8A7791_CLK_VCP0 1
+#define R8A7791_CLK_VPC0 3
+#define R8A7791_CLK_JPU 6
+#define R8A7791_CLK_SSP1 9
#define R8A7791_CLK_TMU1 11
#define R8A7791_CLK_3DG 12
+#define R8A7791_CLK_2DDMAC 15
+#define R8A7791_CLK_FDP1_1 18
+#define R8A7791_CLK_FDP1_0 19
#define R8A7791_CLK_TMU3 21
#define R8A7791_CLK_TMU2 22
#define R8A7791_CLK_CMT0 24
--
cgit v1.2.1
From f213d8f79a3928eaa2e2936f8ab40761aac04b95 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 30 Oct 2014 13:45:58 +0100
Subject: ALSA: pcm: Use static inline for snd_pcm_lib_alloc_vmalloc_buffer()
... instead of #if 0 hack. It's more straightforward and obvious.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index e862497f7556..5c3310d7d4b8 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -942,7 +942,6 @@ int _snd_pcm_lib_alloc_vmalloc_buffer(struct snd_pcm_substream *substream,
int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream);
struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream,
unsigned long offset);
-#if 0 /* for kernel-doc */
/**
* snd_pcm_lib_alloc_vmalloc_buffer - allocate virtual DMA buffer
* @substream: the substream to allocate the buffer to
@@ -955,8 +954,13 @@ struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream,
* Return: 1 if the buffer was changed, 0 if not changed, or a negative error
* code.
*/
-static int snd_pcm_lib_alloc_vmalloc_buffer
- (struct snd_pcm_substream *substream, size_t size);
+static inline int snd_pcm_lib_alloc_vmalloc_buffer
+ (struct snd_pcm_substream *substream, size_t size)
+{
+ return _snd_pcm_lib_alloc_vmalloc_buffer(substream, size,
+ GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
+}
+
/**
* snd_pcm_lib_alloc_vmalloc_32_buffer - allocate 32-bit-addressable buffer
* @substream: the substream to allocate the buffer to
@@ -968,15 +972,12 @@ static int snd_pcm_lib_alloc_vmalloc_buffer
* Return: 1 if the buffer was changed, 0 if not changed, or a negative error
* code.
*/
-static int snd_pcm_lib_alloc_vmalloc_32_buffer
- (struct snd_pcm_substream *substream, size_t size);
-#endif
-#define snd_pcm_lib_alloc_vmalloc_buffer(subs, size) \
- _snd_pcm_lib_alloc_vmalloc_buffer \
- (subs, size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO)
-#define snd_pcm_lib_alloc_vmalloc_32_buffer(subs, size) \
- _snd_pcm_lib_alloc_vmalloc_buffer \
- (subs, size, GFP_KERNEL | GFP_DMA32 | __GFP_ZERO)
+static inline int snd_pcm_lib_alloc_vmalloc_32_buffer
+ (struct snd_pcm_substream *substream, size_t size)
+{
+ return _snd_pcm_lib_alloc_vmalloc_buffer(substream, size,
+ GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
+}
#define snd_pcm_get_dma_buf(substream) ((substream)->runtime->dma_buffer_p)
--
cgit v1.2.1
From 30b771cf8c3120c5c946811ecc5a9b87a34003a2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 30 Oct 2014 15:02:50 +0100
Subject: ALSA: pcm: More kerneldoc updates
Add proper kerneldoc comments to the exported functions.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 160 +++++++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 153 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 5c3310d7d4b8..f78a5722f5cc 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -533,6 +533,12 @@ snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size)
* PCM library
*/
+/**
+ * snd_pcm_stream_linked - Check whether the substream is linked with others
+ * @substream: substream to check
+ *
+ * Returns true if the given substream is being linked with others.
+ */
static inline int snd_pcm_stream_linked(struct snd_pcm_substream *substream)
{
return substream->group != &substream->self_group;
@@ -543,6 +549,16 @@ void snd_pcm_stream_unlock(struct snd_pcm_substream *substream);
void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream);
void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream);
unsigned long _snd_pcm_stream_lock_irqsave(struct snd_pcm_substream *substream);
+
+/**
+ * snd_pcm_stream_lock_irqsave - Lock the PCM stream
+ * @substream: PCM substream
+ * @flags: irq flags
+ *
+ * This locks the PCM stream like snd_pcm_stream_lock() but with the local
+ * IRQ (only when nonatomic is false). In nonatomic case, this is identical
+ * as snd_pcm_stream_lock().
+ */
#define snd_pcm_stream_lock_irqsave(substream, flags) \
do { \
typecheck(unsigned long, flags); \
@@ -551,9 +567,25 @@ unsigned long _snd_pcm_stream_lock_irqsave(struct snd_pcm_substream *substream);
void snd_pcm_stream_unlock_irqrestore(struct snd_pcm_substream *substream,
unsigned long flags);
+/**
+ * snd_pcm_group_for_each_entry - iterate over the linked substreams
+ * @s: the iterator
+ * @substream: the substream
+ *
+ * Iterate over the all linked substreams to the given @substream.
+ * When @substream isn't linked with any others, this gives returns @substream
+ * itself once.
+ */
#define snd_pcm_group_for_each_entry(s, substream) \
list_for_each_entry(s, &substream->group->substreams, link_list)
+/**
+ * snd_pcm_running - Check whether the substream is in a running state
+ * @substream: substream to check
+ *
+ * Returns true if the given substream is in the state RUNNING, or in the
+ * state DRAINING for playback.
+ */
static inline int snd_pcm_running(struct snd_pcm_substream *substream)
{
return (substream->runtime->status->state == SNDRV_PCM_STATE_RUNNING ||
@@ -561,45 +593,81 @@ static inline int snd_pcm_running(struct snd_pcm_substream *substream)
substream->stream == SNDRV_PCM_STREAM_PLAYBACK));
}
+/**
+ * bytes_to_samples - Unit conversion of the size from bytes to samples
+ * @runtime: PCM runtime instance
+ * @size: size in bytes
+ */
static inline ssize_t bytes_to_samples(struct snd_pcm_runtime *runtime, ssize_t size)
{
return size * 8 / runtime->sample_bits;
}
+/**
+ * bytes_to_frames - Unit conversion of the size from bytes to frames
+ * @runtime: PCM runtime instance
+ * @size: size in bytes
+ */
static inline snd_pcm_sframes_t bytes_to_frames(struct snd_pcm_runtime *runtime, ssize_t size)
{
return size * 8 / runtime->frame_bits;
}
+/**
+ * samples_to_bytes - Unit conversion of the size from samples to bytes
+ * @runtime: PCM runtime instance
+ * @size: size in samples
+ */
static inline ssize_t samples_to_bytes(struct snd_pcm_runtime *runtime, ssize_t size)
{
return size * runtime->sample_bits / 8;
}
+/**
+ * frames_to_bytes - Unit conversion of the size from frames to bytes
+ * @runtime: PCM runtime instance
+ * @size: size in frames
+ */
static inline ssize_t frames_to_bytes(struct snd_pcm_runtime *runtime, snd_pcm_sframes_t size)
{
return size * runtime->frame_bits / 8;
}
+/**
+ * frame_aligned - Check whether the byte size is aligned to frames
+ * @runtime: PCM runtime instance
+ * @bytes: size in bytes
+ */
static inline int frame_aligned(struct snd_pcm_runtime *runtime, ssize_t bytes)
{
return bytes % runtime->byte_align == 0;
}
+/**
+ * snd_pcm_lib_buffer_bytes - Get the buffer size of the current PCM in bytes
+ * @substream: PCM substream
+ */
static inline size_t snd_pcm_lib_buffer_bytes(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
return frames_to_bytes(runtime, runtime->buffer_size);
}
+/**
+ * snd_pcm_lib_period_bytes - Get the period size of the current PCM in bytes
+ * @substream: PCM substream
+ */
static inline size_t snd_pcm_lib_period_bytes(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
return frames_to_bytes(runtime, runtime->period_size);
}
-/*
- * result is: 0 ... (boundary - 1)
+/**
+ * snd_pcm_playback_avail - Get the available (writable) space for playback
+ * @runtime: PCM runtime instance
+ *
+ * Result is between 0 ... (boundary - 1)
*/
static inline snd_pcm_uframes_t snd_pcm_playback_avail(struct snd_pcm_runtime *runtime)
{
@@ -611,8 +679,11 @@ static inline snd_pcm_uframes_t snd_pcm_playback_avail(struct snd_pcm_runtime *r
return avail;
}
-/*
- * result is: 0 ... (boundary - 1)
+/**
+ * snd_pcm_playback_avail - Get the available (readable) space for capture
+ * @runtime: PCM runtime instance
+ *
+ * Result is between 0 ... (boundary - 1)
*/
static inline snd_pcm_uframes_t snd_pcm_capture_avail(struct snd_pcm_runtime *runtime)
{
@@ -622,11 +693,19 @@ static inline snd_pcm_uframes_t snd_pcm_capture_avail(struct snd_pcm_runtime *ru
return avail;
}
+/**
+ * snd_pcm_playback_hw_avail - Get the queued space for playback
+ * @runtime: PCM runtime instance
+ */
static inline snd_pcm_sframes_t snd_pcm_playback_hw_avail(struct snd_pcm_runtime *runtime)
{
return runtime->buffer_size - snd_pcm_playback_avail(runtime);
}
+/**
+ * snd_pcm_capture_hw_avail - Get the free space for capture
+ * @runtime: PCM runtime instance
+ */
static inline snd_pcm_sframes_t snd_pcm_capture_hw_avail(struct snd_pcm_runtime *runtime)
{
return runtime->buffer_size - snd_pcm_capture_avail(runtime);
@@ -706,6 +785,20 @@ static inline int snd_pcm_capture_empty(struct snd_pcm_substream *substream)
return snd_pcm_capture_avail(runtime) == 0;
}
+/**
+ * snd_pcm_trigger_done - Mark the master substream
+ * @substream: the pcm substream instance
+ * @master: the linked master substream
+ *
+ * When multiple substreams of the same card are linked and the hardware
+ * supports the single-shot operation, the driver calls this in the loop
+ * in snd_pcm_group_for_each_entry() for marking the substream as "done".
+ * Then most of trigger operations are performed only to the given master
+ * substream.
+ *
+ * The trigger_master mark is cleared at timestamp updates at the end
+ * of trigger operations.
+ */
static inline void snd_pcm_trigger_done(struct snd_pcm_substream *substream,
struct snd_pcm_substream *master)
{
@@ -881,6 +974,14 @@ unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit);
unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a,
unsigned int rates_b);
+/**
+ * snd_pcm_set_runtime_buffer - Set the PCM runtime buffer
+ * @substream: PCM substream to set
+ * @bufp: the buffer information, NULL to clear
+ *
+ * Copy the buffer information to runtime->dma_buffer when @bufp is non-NULL.
+ * Otherwise it clears the current buffer information.
+ */
static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substream,
struct snd_dma_buffer *bufp)
{
@@ -906,6 +1007,11 @@ void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream);
void snd_pcm_timer_init(struct snd_pcm_substream *substream);
void snd_pcm_timer_done(struct snd_pcm_substream *substream);
+/**
+ * snd_pcm_gettime - Fill the timespec depending on the timestamp mode
+ * @runtime: PCM runtime instance
+ * @tv: timespec to fill
+ */
static inline void snd_pcm_gettime(struct snd_pcm_runtime *runtime,
struct timespec *tv)
{
@@ -997,18 +1103,35 @@ struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream,
#define snd_pcm_sgbuf_ops_page NULL
#endif /* SND_DMA_SGBUF */
+/**
+ * snd_pcm_sgbuf_get_addr - Get the DMA address at the corresponding offset
+ * @substream: PCM substream
+ * @ofs: byte offset
+ */
static inline dma_addr_t
snd_pcm_sgbuf_get_addr(struct snd_pcm_substream *substream, unsigned int ofs)
{
return snd_sgbuf_get_addr(snd_pcm_get_dma_buf(substream), ofs);
}
+/**
+ * snd_pcm_sgbuf_get_ptr - Get the virtual address at the corresponding offset
+ * @substream: PCM substream
+ * @ofs: byte offset
+ */
static inline void *
snd_pcm_sgbuf_get_ptr(struct snd_pcm_substream *substream, unsigned int ofs)
{
return snd_sgbuf_get_ptr(snd_pcm_get_dma_buf(substream), ofs);
}
+/**
+ * snd_pcm_sgbuf_chunk_size - Compute the max size that fits within the contig.
+ * page from the given size
+ * @substream: PCM substream
+ * @ofs: byte offset
+ * @size: byte size to examine
+ */
static inline unsigned int
snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream,
unsigned int ofs, unsigned int size)
@@ -1016,13 +1139,24 @@ snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream,
return snd_sgbuf_get_chunk_size(snd_pcm_get_dma_buf(substream), ofs, size);
}
-/* handle mmap counter - PCM mmap callback should handle this counter properly */
+/**
+ * snd_pcm_mmap_data_open - increase the mmap counter
+ * @area: VMA
+ *
+ * PCM mmap callback should handle this counter properly
+ */
static inline void snd_pcm_mmap_data_open(struct vm_area_struct *area)
{
struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;
atomic_inc(&substream->mmap_count);
}
+/**
+ * snd_pcm_mmap_data_close - decrease the mmap counter
+ * @area: VMA
+ *
+ * PCM mmap callback should handle this counter properly
+ */
static inline void snd_pcm_mmap_data_close(struct vm_area_struct *area)
{
struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;
@@ -1042,6 +1176,11 @@ int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_s
#define snd_pcm_lib_mmap_vmalloc NULL
+/**
+ * snd_pcm_limit_isa_dma_size - Get the max size fitting with ISA DMA transfer
+ * @dma: DMA number
+ * @max: pointer to store the max size
+ */
static inline void snd_pcm_limit_isa_dma_size(int dma, size_t *max)
{
*max = dma < 4 ? 64 * 1024 : 128 * 1024;
@@ -1094,7 +1233,11 @@ struct snd_pcm_chmap {
void *private_data; /* optional: private data pointer */
};
-/* get the PCM substream assigned to the given chmap info */
+/**
+ * snd_pcm_chmap_substream - get the PCM substream assigned to the given chmap info
+ * @info: chmap information
+ * @idx: the substream number index
+ */
static inline struct snd_pcm_substream *
snd_pcm_chmap_substream(struct snd_pcm_chmap *info, unsigned int idx)
{
@@ -1121,7 +1264,10 @@ int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
unsigned long private_value,
struct snd_pcm_chmap **info_ret);
-/* Strong-typed conversion of pcm_format to bitwise */
+/**
+ * pcm_format_to_bits - Strong-typed conversion of pcm_format to bitwise
+ * @pcm_format: PCM format
+ */
static inline u64 pcm_format_to_bits(snd_pcm_format_t pcm_format)
{
return 1ULL << (__force int) pcm_format;
--
cgit v1.2.1
From 85926e0fe8b48fe6227614ddc3a1cb41c0a3c51a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 30 Oct 2014 15:06:13 +0100
Subject: ALSA: pcm: Convert params_*() with static inline functions
... and add proper kerneldoc comments.
There is no big reason to keep them as macros. Static inline
functions are safer in general, and suitable for kerneldoc, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 65 +++++++++++++++++++++++++++++++++++++++++++----------
1 file changed, 53 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index f78a5722f5cc..29eb09ef2969 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -841,18 +841,59 @@ static inline const struct snd_interval *hw_param_interval_c(const struct snd_pc
return ¶ms->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL];
}
-#define params_channels(p) \
- (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_CHANNELS)->min)
-#define params_rate(p) \
- (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_RATE)->min)
-#define params_period_size(p) \
- (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min)
-#define params_periods(p) \
- (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_PERIODS)->min)
-#define params_buffer_size(p) \
- (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_BUFFER_SIZE)->min)
-#define params_buffer_bytes(p) \
- (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->min)
+/**
+ * params_channels - Get the number of channels from the hw params
+ * @p: hw params
+ */
+static inline unsigned int params_channels(const struct snd_pcm_hw_params *p)
+{
+ return hw_param_interval_c(p, SNDRV_PCM_HW_PARAM_CHANNELS)->min;
+}
+
+/**
+ * params_channels - Get the sample rate from the hw params
+ * @p: hw params
+ */
+static inline unsigned int params_rate(const struct snd_pcm_hw_params *p)
+{
+ return hw_param_interval_c(p, SNDRV_PCM_HW_PARAM_RATE)->min;
+}
+
+/**
+ * params_channels - Get the period size (in frames) from the hw params
+ * @p: hw params
+ */
+static inline unsigned int params_period_size(const struct snd_pcm_hw_params *p)
+{
+ return hw_param_interval_c(p, SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
+}
+
+/**
+ * params_channels - Get the number of periods from the hw params
+ * @p: hw params
+ */
+static inline unsigned int params_periods(const struct snd_pcm_hw_params *p)
+{
+ return hw_param_interval_c(p, SNDRV_PCM_HW_PARAM_PERIODS)->min;
+}
+
+/**
+ * params_channels - Get the buffer size (in frames) from the hw params
+ * @p: hw params
+ */
+static inline unsigned int params_buffer_size(const struct snd_pcm_hw_params *p)
+{
+ return hw_param_interval_c(p, SNDRV_PCM_HW_PARAM_BUFFER_SIZE)->min;
+}
+
+/**
+ * params_channels - Get the buffer size (in bytes) from the hw params
+ * @p: hw params
+ */
+static inline unsigned int params_buffer_bytes(const struct snd_pcm_hw_params *p)
+{
+ return hw_param_interval_c(p, SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->min;
+}
int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v);
void snd_interval_mul(const struct snd_interval *a, const struct snd_interval *b, struct snd_interval *c);
--
cgit v1.2.1
From 384cb2ce819cf08fc8e7c3d306f180f0cefe4674 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Mon, 27 Oct 2014 10:11:57 +0900
Subject: clk: samsung: exynos4415: Add clocks using common clock framework
This patch adds clock driver of Exynos4415 SoC based on Cortex-A9 using
common clock framework. The CMU (Clock Management Unit) of Exynos4415
controls PLLs(Phase Locked Loops) and generates system clocks for CPU,
busses and function clocks for individual IPs.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
include/dt-bindings/clock/exynos4415.h | 360 +++++++++++++++++++++++++++++++++
1 file changed, 360 insertions(+)
create mode 100644 include/dt-bindings/clock/exynos4415.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos4415.h b/include/dt-bindings/clock/exynos4415.h
new file mode 100644
index 000000000000..7eed55100721
--- /dev/null
+++ b/include/dt-bindings/clock/exynos4415.h
@@ -0,0 +1,360 @@
+/*
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Device Tree binding constants for Samsung Exynos4415 clock controllers.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_SAMSUNG_EXYNOS4415_CLOCK_H
+#define _DT_BINDINGS_CLOCK_SAMSUNG_EXYNOS4415_CLOCK_H
+
+/*
+ * Let each exported clock get a unique index, which is used on DT-enabled
+ * platforms to lookup the clock from a clock specifier. These indices are
+ * therefore considered an ABI and so must not be changed. This implies
+ * that new clocks should be added either in free spaces between clock groups
+ * or at the end.
+ */
+
+/*
+ * Main CMU
+ */
+
+#define CLK_OSCSEL 1
+#define CLK_FIN_PLL 2
+#define CLK_FOUT_APLL 3
+#define CLK_FOUT_MPLL 4
+#define CLK_FOUT_EPLL 5
+#define CLK_FOUT_G3D_PLL 6
+#define CLK_FOUT_ISP_PLL 7
+#define CLK_FOUT_DISP_PLL 8
+
+/* Muxes */
+#define CLK_MOUT_MPLL_USER_L 16
+#define CLK_MOUT_GDL 17
+#define CLK_MOUT_MPLL_USER_R 18
+#define CLK_MOUT_GDR 19
+#define CLK_MOUT_EBI 20
+#define CLK_MOUT_ACLK_200 21
+#define CLK_MOUT_ACLK_160 22
+#define CLK_MOUT_ACLK_100 23
+#define CLK_MOUT_ACLK_266 24
+#define CLK_MOUT_G3D_PLL 25
+#define CLK_MOUT_EPLL 26
+#define CLK_MOUT_EBI_1 27
+#define CLK_MOUT_ISP_PLL 28
+#define CLK_MOUT_DISP_PLL 29
+#define CLK_MOUT_MPLL_USER_T 30
+#define CLK_MOUT_ACLK_400_MCUISP 31
+#define CLK_MOUT_G3D_PLLSRC 32
+#define CLK_MOUT_CSIS1 33
+#define CLK_MOUT_CSIS0 34
+#define CLK_MOUT_CAM1 35
+#define CLK_MOUT_FIMC3_LCLK 36
+#define CLK_MOUT_FIMC2_LCLK 37
+#define CLK_MOUT_FIMC1_LCLK 38
+#define CLK_MOUT_FIMC0_LCLK 39
+#define CLK_MOUT_MFC 40
+#define CLK_MOUT_MFC_1 41
+#define CLK_MOUT_MFC_0 42
+#define CLK_MOUT_G3D 43
+#define CLK_MOUT_G3D_1 44
+#define CLK_MOUT_G3D_0 45
+#define CLK_MOUT_MIPI0 46
+#define CLK_MOUT_FIMD0 47
+#define CLK_MOUT_TSADC_ISP 48
+#define CLK_MOUT_UART_ISP 49
+#define CLK_MOUT_SPI1_ISP 50
+#define CLK_MOUT_SPI0_ISP 51
+#define CLK_MOUT_PWM_ISP 52
+#define CLK_MOUT_AUDIO0 53
+#define CLK_MOUT_TSADC 54
+#define CLK_MOUT_MMC2 55
+#define CLK_MOUT_MMC1 56
+#define CLK_MOUT_MMC0 57
+#define CLK_MOUT_UART3 58
+#define CLK_MOUT_UART2 59
+#define CLK_MOUT_UART1 60
+#define CLK_MOUT_UART0 61
+#define CLK_MOUT_SPI2 62
+#define CLK_MOUT_SPI1 63
+#define CLK_MOUT_SPI0 64
+#define CLK_MOUT_SPDIF 65
+#define CLK_MOUT_AUDIO2 66
+#define CLK_MOUT_AUDIO1 67
+#define CLK_MOUT_MPLL_USER_C 68
+#define CLK_MOUT_HPM 69
+#define CLK_MOUT_CORE 70
+#define CLK_MOUT_APLL 71
+#define CLK_MOUT_PXLASYNC_CSIS1_FIMC 72
+#define CLK_MOUT_PXLASYNC_CSIS0_FIMC 73
+#define CLK_MOUT_JPEG 74
+#define CLK_MOUT_JPEG1 75
+#define CLK_MOUT_JPEG0 76
+#define CLK_MOUT_ACLK_ISP0_300 77
+#define CLK_MOUT_ACLK_ISP0_400 78
+#define CLK_MOUT_ACLK_ISP0_300_USER 79
+#define CLK_MOUT_ACLK_ISP1_300 80
+#define CLK_MOUT_ACLK_ISP1_300_USER 81
+#define CLK_MOUT_HDMI 82
+
+/* Dividers */
+#define CLK_DIV_GPL 90
+#define CLK_DIV_GDL 91
+#define CLK_DIV_GPR 92
+#define CLK_DIV_GDR 93
+#define CLK_DIV_ACLK_400_MCUISP 94
+#define CLK_DIV_EBI 95
+#define CLK_DIV_ACLK_200 96
+#define CLK_DIV_ACLK_160 97
+#define CLK_DIV_ACLK_100 98
+#define CLK_DIV_ACLK_266 99
+#define CLK_DIV_CSIS1 100
+#define CLK_DIV_CSIS0 101
+#define CLK_DIV_CAM1 102
+#define CLK_DIV_FIMC3_LCLK 103
+#define CLK_DIV_FIMC2_LCLK 104
+#define CLK_DIV_FIMC1_LCLK 105
+#define CLK_DIV_FIMC0_LCLK 106
+#define CLK_DIV_TV_BLK 107
+#define CLK_DIV_MFC 108
+#define CLK_DIV_G3D 109
+#define CLK_DIV_MIPI0_PRE 110
+#define CLK_DIV_MIPI0 111
+#define CLK_DIV_FIMD0 112
+#define CLK_DIV_UART_ISP 113
+#define CLK_DIV_SPI1_ISP_PRE 114
+#define CLK_DIV_SPI1_ISP 115
+#define CLK_DIV_SPI0_ISP_PRE 116
+#define CLK_DIV_SPI0_ISP 117
+#define CLK_DIV_PWM_ISP 118
+#define CLK_DIV_PCM0 119
+#define CLK_DIV_AUDIO0 120
+#define CLK_DIV_TSADC_PRE 121
+#define CLK_DIV_TSADC 122
+#define CLK_DIV_MMC1_PRE 123
+#define CLK_DIV_MMC1 124
+#define CLK_DIV_MMC0_PRE 125
+#define CLK_DIV_MMC0 126
+#define CLK_DIV_MMC2_PRE 127
+#define CLK_DIV_MMC2 128
+#define CLK_DIV_UART3 129
+#define CLK_DIV_UART2 130
+#define CLK_DIV_UART1 131
+#define CLK_DIV_UART0 132
+#define CLK_DIV_SPI1_PRE 133
+#define CLK_DIV_SPI1 134
+#define CLK_DIV_SPI0_PRE 135
+#define CLK_DIV_SPI0 136
+#define CLK_DIV_SPI2_PRE 137
+#define CLK_DIV_SPI2 138
+#define CLK_DIV_PCM2 139
+#define CLK_DIV_AUDIO2 140
+#define CLK_DIV_PCM1 141
+#define CLK_DIV_AUDIO1 142
+#define CLK_DIV_I2S1 143
+#define CLK_DIV_PXLASYNC_CSIS1_FIMC 144
+#define CLK_DIV_PXLASYNC_CSIS0_FIMC 145
+#define CLK_DIV_JPEG 146
+#define CLK_DIV_CORE2 147
+#define CLK_DIV_APLL 148
+#define CLK_DIV_PCLK_DBG 149
+#define CLK_DIV_ATB 150
+#define CLK_DIV_PERIPH 151
+#define CLK_DIV_COREM1 152
+#define CLK_DIV_COREM0 153
+#define CLK_DIV_CORE 154
+#define CLK_DIV_HPM 155
+#define CLK_DIV_COPY 156
+
+/* Gates */
+#define CLK_ASYNC_G3D 180
+#define CLK_ASYNC_MFCL 181
+#define CLK_ASYNC_TVX 182
+#define CLK_PPMULEFT 183
+#define CLK_GPIO_LEFT 184
+#define CLK_PPMUIMAGE 185
+#define CLK_QEMDMA2 186
+#define CLK_QEROTATOR 187
+#define CLK_SMMUMDMA2 188
+#define CLK_SMMUROTATOR 189
+#define CLK_MDMA2 190
+#define CLK_ROTATOR 191
+#define CLK_ASYNC_ISPMX 192
+#define CLK_ASYNC_MAUDIOX 193
+#define CLK_ASYNC_MFCR 194
+#define CLK_ASYNC_FSYSD 195
+#define CLK_ASYNC_LCD0X 196
+#define CLK_ASYNC_CAMX 197
+#define CLK_PPMURIGHT 198
+#define CLK_GPIO_RIGHT 199
+#define CLK_ANTIRBK_APBIF 200
+#define CLK_EFUSE_WRITER_APBIF 201
+#define CLK_MONOCNT 202
+#define CLK_TZPC6 203
+#define CLK_PROVISIONKEY1 204
+#define CLK_PROVISIONKEY0 205
+#define CLK_CMU_ISPPART 206
+#define CLK_TMU_APBIF 207
+#define CLK_KEYIF 208
+#define CLK_RTC 209
+#define CLK_WDT 210
+#define CLK_MCT 211
+#define CLK_SECKEY 212
+#define CLK_HDMI_CEC 213
+#define CLK_TZPC5 214
+#define CLK_TZPC4 215
+#define CLK_TZPC3 216
+#define CLK_TZPC2 217
+#define CLK_TZPC1 218
+#define CLK_TZPC0 219
+#define CLK_CMU_COREPART 220
+#define CLK_CMU_TOPPART 221
+#define CLK_PMU_APBIF 222
+#define CLK_SYSREG 223
+#define CLK_CHIP_ID 224
+#define CLK_SMMUFIMC_LITE2 225
+#define CLK_FIMC_LITE2 226
+#define CLK_PIXELASYNCM1 227
+#define CLK_PIXELASYNCM0 228
+#define CLK_PPMUCAMIF 229
+#define CLK_SMMUJPEG 230
+#define CLK_SMMUFIMC3 231
+#define CLK_SMMUFIMC2 232
+#define CLK_SMMUFIMC1 233
+#define CLK_SMMUFIMC0 234
+#define CLK_JPEG 235
+#define CLK_CSIS1 236
+#define CLK_CSIS0 237
+#define CLK_FIMC3 238
+#define CLK_FIMC2 239
+#define CLK_FIMC1 240
+#define CLK_FIMC0 241
+#define CLK_PPMUTV 242
+#define CLK_SMMUTV 243
+#define CLK_HDMI 244
+#define CLK_MIXER 245
+#define CLK_VP 246
+#define CLK_PPMUMFC_R 247
+#define CLK_PPMUMFC_L 248
+#define CLK_SMMUMFC_R 249
+#define CLK_SMMUMFC_L 250
+#define CLK_MFC 251
+#define CLK_PPMUG3D 252
+#define CLK_G3D 253
+#define CLK_PPMULCD0 254
+#define CLK_SMMUFIMD0 255
+#define CLK_DSIM0 256
+#define CLK_SMIES 257
+#define CLK_MIE0 258
+#define CLK_FIMD0 259
+#define CLK_TSADC 260
+#define CLK_PPMUFILE 261
+#define CLK_NFCON 262
+#define CLK_USBDEVICE 263
+#define CLK_USBHOST 264
+#define CLK_SROMC 265
+#define CLK_SDMMC2 266
+#define CLK_SDMMC1 267
+#define CLK_SDMMC0 268
+#define CLK_PDMA1 269
+#define CLK_PDMA0 270
+#define CLK_SPDIF 271
+#define CLK_PWM 272
+#define CLK_PCM2 273
+#define CLK_PCM1 274
+#define CLK_I2S1 275
+#define CLK_SPI2 276
+#define CLK_SPI1 277
+#define CLK_SPI0 278
+#define CLK_I2CHDMI 279
+#define CLK_I2C7 280
+#define CLK_I2C6 281
+#define CLK_I2C5 282
+#define CLK_I2C4 283
+#define CLK_I2C3 284
+#define CLK_I2C2 285
+#define CLK_I2C1 286
+#define CLK_I2C0 287
+#define CLK_UART3 288
+#define CLK_UART2 289
+#define CLK_UART1 290
+#define CLK_UART0 291
+
+/* Special clocks */
+#define CLK_SCLK_PXLAYSNC_CSIS1_FIMC 330
+#define CLK_SCLK_PXLAYSNC_CSIS0_FIMC 331
+#define CLK_SCLK_JPEG 332
+#define CLK_SCLK_CSIS1 333
+#define CLK_SCLK_CSIS0 334
+#define CLK_SCLK_CAM1 335
+#define CLK_SCLK_FIMC3_LCLK 336
+#define CLK_SCLK_FIMC2_LCLK 337
+#define CLK_SCLK_FIMC1_LCLK 338
+#define CLK_SCLK_FIMC0_LCLK 339
+#define CLK_SCLK_PIXEL 340
+#define CLK_SCLK_HDMI 341
+#define CLK_SCLK_MIXER 342
+#define CLK_SCLK_MFC 343
+#define CLK_SCLK_G3D 344
+#define CLK_SCLK_MIPIDPHY4L 345
+#define CLK_SCLK_MIPI0 346
+#define CLK_SCLK_MDNIE0 347
+#define CLK_SCLK_FIMD0 348
+#define CLK_SCLK_PCM0 349
+#define CLK_SCLK_AUDIO0 350
+#define CLK_SCLK_TSADC 351
+#define CLK_SCLK_EBI 352
+#define CLK_SCLK_MMC2 353
+#define CLK_SCLK_MMC1 354
+#define CLK_SCLK_MMC0 355
+#define CLK_SCLK_I2S 356
+#define CLK_SCLK_PCM2 357
+#define CLK_SCLK_PCM1 358
+#define CLK_SCLK_AUDIO2 359
+#define CLK_SCLK_AUDIO1 360
+#define CLK_SCLK_SPDIF 361
+#define CLK_SCLK_SPI2 362
+#define CLK_SCLK_SPI1 363
+#define CLK_SCLK_SPI0 364
+#define CLK_SCLK_UART3 365
+#define CLK_SCLK_UART2 366
+#define CLK_SCLK_UART1 367
+#define CLK_SCLK_UART0 368
+#define CLK_SCLK_HDMIPHY 369
+
+/*
+ * Total number of clocks of main CMU.
+ * NOTE: Must be equal to last clock ID increased by one.
+ */
+#define CLK_NR_CLKS 370
+
+/*
+ * CMU DMC
+ */
+#define CLK_DMC_FOUT_MPLL 1
+#define CLK_DMC_FOUT_BPLL 2
+
+#define CLK_DMC_MOUT_MPLL 3
+#define CLK_DMC_MOUT_BPLL 4
+#define CLK_DMC_MOUT_DPHY 5
+#define CLK_DMC_MOUT_DMC_BUS 6
+
+#define CLK_DMC_DIV_DMC 7
+#define CLK_DMC_DIV_DPHY 8
+#define CLK_DMC_DIV_DMC_PRE 9
+#define CLK_DMC_DIV_DMCP 10
+#define CLK_DMC_DIV_DMCD 11
+#define CLK_DMC_DIV_MPLL_PRE 12
+
+/*
+ * Total number of clocks of CMU_DMC.
+ * NOTE: Must be equal to highest clock ID increased by one.
+ */
+#define NR_CLKS_DMC 13
+
+#endif /* _DT_BINDINGS_CLOCK_SAMSUNG_EXYNOS4415_CLOCK_H */
--
cgit v1.2.1
From 51579c3f1a9192b75365576227d40c7619493285 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 29 Oct 2014 10:44:58 -0700
Subject: net: dsa: Add support for reporting switch chip temperatures
Some switches provide chip temperature data.
Add support for reporting it through the hwmon subsystem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index b76559293535..55e75e7e8d41 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -139,6 +139,14 @@ struct dsa_switch {
*/
struct device *master_dev;
+#ifdef CONFIG_NET_DSA_HWMON
+ /*
+ * Hardware monitoring information
+ */
+ char hwmon_name[IFNAMSIZ + 8];
+ struct device *hwmon_dev;
+#endif
+
/*
* Slave mii_bus and devices for the individual ports.
*/
@@ -242,6 +250,14 @@ struct dsa_switch_driver {
struct ethtool_eee *e);
int (*get_eee)(struct dsa_switch *ds, int port,
struct ethtool_eee *e);
+
+#ifdef CONFIG_NET_DSA_HWMON
+ /* Hardware monitoring */
+ int (*get_temp)(struct dsa_switch *ds, int *temp);
+ int (*get_temp_limit)(struct dsa_switch *ds, int *temp);
+ int (*set_temp_limit)(struct dsa_switch *ds, int temp);
+ int (*get_temp_alarm)(struct dsa_switch *ds, bool *alarm);
+#endif
};
void register_switch_driver(struct dsa_switch_driver *type);
--
cgit v1.2.1
From 6793abb4e8491b1d673ccfd09e1a73d1ff8b9386 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 29 Oct 2014 10:45:01 -0700
Subject: net: dsa: Add support for switch EEPROM access
On some chips it is possible to access the switch eeprom.
Add infrastructure support for it.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 55e75e7e8d41..37856a28c8d3 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -38,6 +38,9 @@ struct dsa_chip_data {
struct device *host_dev;
int sw_addr;
+ /* set to size of eeprom if supported by the switch */
+ int eeprom_len;
+
/* Device tree node pointer for this specific switch chip
* used during switch setup in case additional properties
* and resources needs to be used
@@ -258,6 +261,13 @@ struct dsa_switch_driver {
int (*set_temp_limit)(struct dsa_switch *ds, int temp);
int (*get_temp_alarm)(struct dsa_switch *ds, bool *alarm);
#endif
+
+ /* EEPROM access */
+ int (*get_eeprom_len)(struct dsa_switch *ds);
+ int (*get_eeprom)(struct dsa_switch *ds,
+ struct ethtool_eeprom *eeprom, u8 *data);
+ int (*set_eeprom)(struct dsa_switch *ds,
+ struct ethtool_eeprom *eeprom, u8 *data);
};
void register_switch_driver(struct dsa_switch_driver *type);
--
cgit v1.2.1
From 3d762a0f0ab9cb4a6b5993db3ce56c92f9f90ab2 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 29 Oct 2014 10:45:04 -0700
Subject: net: dsa: Add support for reading switch registers with ethtool
Add support for reading switch registers with 'ethtool -d'.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 37856a28c8d3..ed3c34bbb67a 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -268,6 +268,13 @@ struct dsa_switch_driver {
struct ethtool_eeprom *eeprom, u8 *data);
int (*set_eeprom)(struct dsa_switch *ds,
struct ethtool_eeprom *eeprom, u8 *data);
+
+ /*
+ * Register access.
+ */
+ int (*get_regs_len)(struct dsa_switch *ds, int port);
+ void (*get_regs)(struct dsa_switch *ds, int port,
+ struct ethtool_regs *regs, void *p);
};
void register_switch_driver(struct dsa_switch_driver *type);
--
cgit v1.2.1
From 39bb5e62867de82b269b07df900165029b928359 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 30 Oct 2014 10:32:34 -0700
Subject: net: skb_fclone_busy() needs to detect orphaned skb
Some drivers are unable to perform TX completions in a bound time.
They instead call skb_orphan()
Problem is skb_fclone_busy() has to detect this case, otherwise
we block TCP retransmits and can freeze unlucky tcp sessions on
mostly idle hosts.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 1f3279ae0c13 ("tcp: avoid retransmits of TCP packets hanging in host queues")
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5884f95ff0e9..6c8b6f604e76 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -799,15 +799,19 @@ struct sk_buff_fclones {
* @skb: buffer
*
* Returns true is skb is a fast clone, and its clone is not freed.
+ * Some drivers call skb_orphan() in their ndo_start_xmit(),
+ * so we also check that this didnt happen.
*/
-static inline bool skb_fclone_busy(const struct sk_buff *skb)
+static inline bool skb_fclone_busy(const struct sock *sk,
+ const struct sk_buff *skb)
{
const struct sk_buff_fclones *fclones;
fclones = container_of(skb, struct sk_buff_fclones, skb1);
return skb->fclone == SKB_FCLONE_ORIG &&
- fclones->skb2.fclone == SKB_FCLONE_CLONE;
+ fclones->skb2.fclone == SKB_FCLONE_CLONE &&
+ fclones->skb2.sk == sk;
}
static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
--
cgit v1.2.1
From 5188cd44c55db3e92cd9e77a40b5baa7ed4340f7 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Thu, 30 Oct 2014 18:27:17 +0000
Subject: drivers/net, ipv6: Select IPv6 fragment idents for virtio UFO packets
UFO is now disabled on all drivers that work with virtio net headers,
but userland may try to send UFO/IPv6 packets anyway. Instead of
sending with ID=0, we should select identifiers on their behalf (as we
used to).
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: 916e4cf46d02 ("ipv6: reuse ip6_frag_id from ip6_ufo_append_data")
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ipv6.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 97f472012438..4292929392b0 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -671,6 +671,8 @@ static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_add
return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
}
+void ipv6_proxy_select_ident(struct sk_buff *skb);
+
int ip6_dst_hoplimit(struct dst_entry *dst);
static inline int ip6_sk_dst_hoplimit(struct ipv6_pinfo *np, struct flowi6 *fl6,
--
cgit v1.2.1
From c759e5f76b18350ed2417e89588d6358e58e1ad3 Mon Sep 17 00:00:00 2001
From: Maxime Coquelin <maxime.coquelin@st.com>
Date: Fri, 31 Oct 2014 09:47:54 +0100
Subject: reset: stih407: Add reset controllers DT bindings
This patch adds softreset, powerdown and picophy reset controllers
DT bindings for the STiH407 SoC.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
---
.../dt-bindings/reset-controller/stih407-resets.h | 61 ++++++++++++++++++++++
1 file changed, 61 insertions(+)
create mode 100644 include/dt-bindings/reset-controller/stih407-resets.h
(limited to 'include')
diff --git a/include/dt-bindings/reset-controller/stih407-resets.h b/include/dt-bindings/reset-controller/stih407-resets.h
new file mode 100644
index 000000000000..02d4328fe479
--- /dev/null
+++ b/include/dt-bindings/reset-controller/stih407-resets.h
@@ -0,0 +1,61 @@
+/*
+ * This header provides constants for the reset controller
+ * based peripheral powerdown requests on the STMicroelectronics
+ * STiH407 SoC.
+ */
+#ifndef _DT_BINDINGS_RESET_CONTROLLER_STIH407
+#define _DT_BINDINGS_RESET_CONTROLLER_STIH407
+
+/* Powerdown requests control 0 */
+#define STIH407_EMISS_POWERDOWN 0
+#define STIH407_NAND_POWERDOWN 1
+
+/* Synp GMAC PowerDown */
+#define STIH407_ETH1_POWERDOWN 2
+
+/* Powerdown requests control 1 */
+#define STIH407_USB3_POWERDOWN 3
+#define STIH407_USB2_PORT1_POWERDOWN 4
+#define STIH407_USB2_PORT0_POWERDOWN 5
+#define STIH407_PCIE1_POWERDOWN 6
+#define STIH407_PCIE0_POWERDOWN 7
+#define STIH407_SATA1_POWERDOWN 8
+#define STIH407_SATA0_POWERDOWN 9
+
+/* Reset defines */
+#define STIH407_ETH1_SOFTRESET 0
+#define STIH407_MMC1_SOFTRESET 1
+#define STIH407_PICOPHY_SOFTRESET 2
+#define STIH407_IRB_SOFTRESET 3
+#define STIH407_PCIE0_SOFTRESET 4
+#define STIH407_PCIE1_SOFTRESET 5
+#define STIH407_SATA0_SOFTRESET 6
+#define STIH407_SATA1_SOFTRESET 7
+#define STIH407_MIPHY0_SOFTRESET 8
+#define STIH407_MIPHY1_SOFTRESET 9
+#define STIH407_MIPHY2_SOFTRESET 10
+#define STIH407_SATA0_PWR_SOFTRESET 11
+#define STIH407_SATA1_PWR_SOFTRESET 12
+#define STIH407_DELTA_SOFTRESET 13
+#define STIH407_BLITTER_SOFTRESET 14
+#define STIH407_HDTVOUT_SOFTRESET 15
+#define STIH407_HDQVDP_SOFTRESET 16
+#define STIH407_VDP_AUX_SOFTRESET 17
+#define STIH407_COMPO_SOFTRESET 18
+#define STIH407_HDMI_TX_PHY_SOFTRESET 19
+#define STIH407_JPEG_DEC_SOFTRESET 20
+#define STIH407_VP8_DEC_SOFTRESET 21
+#define STIH407_GPU_SOFTRESET 22
+#define STIH407_HVA_SOFTRESET 23
+#define STIH407_ERAM_HVA_SOFTRESET 24
+#define STIH407_LPM_SOFTRESET 25
+#define STIH407_KEYSCAN_SOFTRESET 26
+#define STIH407_USB2_PORT0_SOFTRESET 27
+#define STIH407_USB2_PORT1_SOFTRESET 28
+
+/* Picophy reset defines */
+#define STIH407_PICOPHY0_RESET 0
+#define STIH407_PICOPHY1_RESET 1
+#define STIH407_PICOPHY2_RESET 2
+
+#endif /* _DT_BINDINGS_RESET_CONTROLLER_STIH407 */
--
cgit v1.2.1
From 1befe7e49f8d4e706e5ef39fb57dac1da734f163 Mon Sep 17 00:00:00 2001
From: Gabriel FERNANDEZ <gabriel.fernandez@st.com>
Date: Mon, 25 Aug 2014 16:44:00 +0200
Subject: ARM: STi: DT: STiH407: 407 DT Entry for clockgen C0
Patch adds DT entries for clockgen C0
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Olivier Bideau <olivier.bideau@st.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
---
include/dt-bindings/clock/stih407-clks.h | 11 +++++++++++
1 file changed, 11 insertions(+)
create mode 100644 include/dt-bindings/clock/stih407-clks.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/stih407-clks.h b/include/dt-bindings/clock/stih407-clks.h
new file mode 100644
index 000000000000..1f9bfe0e47f8
--- /dev/null
+++ b/include/dt-bindings/clock/stih407-clks.h
@@ -0,0 +1,11 @@
+/*
+ * This header provides constants clk index STMicroelectronics
+ * STiH407 SoC.
+ */
+#ifndef _DT_BINDINGS_CLK_STIH407
+#define _DT_BINDINGS_CLK_STIH407
+
+/* CLOCKGEN C0 */
+#define CLK_EXT2F_A9 13
+
+#endif
--
cgit v1.2.1
From 532abc3a4a4502e13315d246c545d7567c80b03e Mon Sep 17 00:00:00 2001
From: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Date: Mon, 22 Sep 2014 10:17:04 +0530
Subject: clk: samsung: add initial clock support for Exynos7 SoC
Add initial clock support for Exynos7 SoC which is required
to bring up platforms based on Exynos7.
Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Reviewed-by: Thomas Abraham <thomas.ab@samsung.com>
Tested-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
include/dt-bindings/clock/exynos7-clk.h | 49 +++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
create mode 100644 include/dt-bindings/clock/exynos7-clk.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h
new file mode 100644
index 000000000000..00fd6de1cb25
--- /dev/null
+++ b/include/dt-bindings/clock/exynos7-clk.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _DT_BINDINGS_CLOCK_EXYNOS7_H
+#define _DT_BINDINGS_CLOCK_EXYNOS7_H
+
+/* TOPC */
+#define DOUT_ACLK_PERIS 1
+#define DOUT_SCLK_BUS0_PLL 2
+#define DOUT_SCLK_BUS1_PLL 3
+#define DOUT_SCLK_CC_PLL 4
+#define DOUT_SCLK_MFC_PLL 5
+#define TOPC_NR_CLK 6
+
+/* TOP0 */
+#define DOUT_ACLK_PERIC1 1
+#define DOUT_ACLK_PERIC0 2
+#define CLK_SCLK_UART0 3
+#define CLK_SCLK_UART1 4
+#define CLK_SCLK_UART2 5
+#define CLK_SCLK_UART3 6
+#define TOP0_NR_CLK 7
+
+/* PERIC0 */
+#define PCLK_UART0 1
+#define SCLK_UART0 2
+#define PERIC0_NR_CLK 3
+
+/* PERIC1 */
+#define PCLK_UART1 1
+#define PCLK_UART2 2
+#define PCLK_UART3 3
+#define SCLK_UART1 4
+#define SCLK_UART2 5
+#define SCLK_UART3 6
+#define PERIC1_NR_CLK 7
+
+/* PERIS */
+#define PCLK_CHIPID 1
+#define SCLK_CHIPID 2
+#define PERIS_NR_CLK 3
+
+#endif /* _DT_BINDINGS_CLOCK_EXYNOS7_H */
--
cgit v1.2.1
From 57a2b485fa512be47b479077b5f89e1bfe536709 Mon Sep 17 00:00:00 2001
From: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Date: Tue, 21 Oct 2014 11:13:51 +0530
Subject: clk: samsung: exynos7: add clocks for I2C block
Exynos7 supports 12 I2C channels, add the I2C gate clocks to
support them.
Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
include/dt-bindings/clock/exynos7-clk.h | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h
index 00fd6de1cb25..6d07b6f1d615 100644
--- a/include/dt-bindings/clock/exynos7-clk.h
+++ b/include/dt-bindings/clock/exynos7-clk.h
@@ -30,7 +30,14 @@
/* PERIC0 */
#define PCLK_UART0 1
#define SCLK_UART0 2
-#define PERIC0_NR_CLK 3
+#define PCLK_HSI2C0 3
+#define PCLK_HSI2C1 4
+#define PCLK_HSI2C4 5
+#define PCLK_HSI2C5 6
+#define PCLK_HSI2C9 7
+#define PCLK_HSI2C10 8
+#define PCLK_HSI2C11 9
+#define PERIC0_NR_CLK 10
/* PERIC1 */
#define PCLK_UART1 1
@@ -39,7 +46,12 @@
#define SCLK_UART1 4
#define SCLK_UART2 5
#define SCLK_UART3 6
-#define PERIC1_NR_CLK 7
+#define PCLK_HSI2C2 7
+#define PCLK_HSI2C3 8
+#define PCLK_HSI2C6 9
+#define PCLK_HSI2C7 10
+#define PCLK_HSI2C8 11
+#define PERIC1_NR_CLK 12
/* PERIS */
#define PCLK_CHIPID 1
--
cgit v1.2.1
From 6d0c8c723f0b886f58263c089831fd2bee0b3b57 Mon Sep 17 00:00:00 2001
From: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Date: Tue, 21 Oct 2014 11:13:52 +0530
Subject: clk: samsung: exynos7: add clocks for MMC block
Exynos7 supports 3 MMC channels, add the MMC gate clocks to
support them.
Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
include/dt-bindings/clock/exynos7-clk.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h
index 6d07b6f1d615..ff63c4e15cc5 100644
--- a/include/dt-bindings/clock/exynos7-clk.h
+++ b/include/dt-bindings/clock/exynos7-clk.h
@@ -27,6 +27,17 @@
#define CLK_SCLK_UART3 6
#define TOP0_NR_CLK 7
+/* TOP1 */
+#define DOUT_ACLK_FSYS1_200 1
+#define DOUT_ACLK_FSYS0_200 2
+#define DOUT_SCLK_MMC2 3
+#define DOUT_SCLK_MMC1 4
+#define DOUT_SCLK_MMC0 5
+#define CLK_SCLK_MMC2 6
+#define CLK_SCLK_MMC1 7
+#define CLK_SCLK_MMC0 8
+#define TOP1_NR_CLK 9
+
/* PERIC0 */
#define PCLK_UART0 1
#define SCLK_UART0 2
@@ -58,4 +69,13 @@
#define SCLK_CHIPID 2
#define PERIS_NR_CLK 3
+/* FSYS0 */
+#define ACLK_MMC2 1
+#define FSYS0_NR_CLK 2
+
+/* FSYS1 */
+#define ACLK_MMC1 1
+#define ACLK_MMC0 2
+#define FSYS1_NR_CLK 3
+
#endif /* _DT_BINDINGS_CLOCK_EXYNOS7_H */
--
cgit v1.2.1
From f5e127cd5ee52b3f0edaeeb7a40c0b9599f4e691 Mon Sep 17 00:00:00 2001
From: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Date: Tue, 28 Oct 2014 16:48:53 +0530
Subject: clk: samsung: exynos7: add clocks for RTC block
Add clock support for the RTC block in Exynos7.
Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
include/dt-bindings/clock/exynos7-clk.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h
index ff63c4e15cc5..dd89aa0f84e1 100644
--- a/include/dt-bindings/clock/exynos7-clk.h
+++ b/include/dt-bindings/clock/exynos7-clk.h
@@ -16,7 +16,8 @@
#define DOUT_SCLK_BUS1_PLL 3
#define DOUT_SCLK_CC_PLL 4
#define DOUT_SCLK_MFC_PLL 5
-#define TOPC_NR_CLK 6
+#define DOUT_ACLK_CCORE_133 6
+#define TOPC_NR_CLK 7
/* TOP0 */
#define DOUT_ACLK_PERIC1 1
@@ -38,6 +39,10 @@
#define CLK_SCLK_MMC0 8
#define TOP1_NR_CLK 9
+/* CCORE */
+#define PCLK_RTC 1
+#define CCORE_NR_CLK 2
+
/* PERIC0 */
#define PCLK_UART0 1
#define SCLK_UART0 2
--
cgit v1.2.1
From 2ab2dfe5d4eef6bad8cdd90dc6bba5a7660273d4 Mon Sep 17 00:00:00 2001
From: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Date: Tue, 28 Oct 2014 16:48:54 +0530
Subject: clk: samsung: exynos7: add gate clocks for WDT, TMU and PWM blocks
Add clock support for the watchdog timer, pwm timer and thermal
management unit IPs in Exynos7.
Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@gmail.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
include/dt-bindings/clock/exynos7-clk.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h
index dd89aa0f84e1..f255bb7c64b3 100644
--- a/include/dt-bindings/clock/exynos7-clk.h
+++ b/include/dt-bindings/clock/exynos7-clk.h
@@ -53,7 +53,9 @@
#define PCLK_HSI2C9 7
#define PCLK_HSI2C10 8
#define PCLK_HSI2C11 9
-#define PERIC0_NR_CLK 10
+#define PCLK_PWM 10
+#define SCLK_PWM 11
+#define PERIC0_NR_CLK 12
/* PERIC1 */
#define PCLK_UART1 1
@@ -72,7 +74,10 @@
/* PERIS */
#define PCLK_CHIPID 1
#define SCLK_CHIPID 2
-#define PERIS_NR_CLK 3
+#define PCLK_WDT 3
+#define PCLK_TMU 4
+#define SCLK_TMU 5
+#define PERIS_NR_CLK 6
/* FSYS0 */
#define ACLK_MMC2 1
--
cgit v1.2.1
From 932e98224d5602be17ed61d0e057e9326f12b59d Mon Sep 17 00:00:00 2001
From: Abhilash Kesavan <a.kesavan@samsung.com>
Date: Tue, 28 Oct 2014 16:48:55 +0530
Subject: clk: samsung: exynos7: add gate clock for ADC block
Add clock support for the ADC interface in Exynos7.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
include/dt-bindings/clock/exynos7-clk.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h
index f255bb7c64b3..8e4681b07ae7 100644
--- a/include/dt-bindings/clock/exynos7-clk.h
+++ b/include/dt-bindings/clock/exynos7-clk.h
@@ -55,7 +55,8 @@
#define PCLK_HSI2C11 9
#define PCLK_PWM 10
#define SCLK_PWM 11
-#define PERIC0_NR_CLK 12
+#define PCLK_ADCIF 12
+#define PERIC0_NR_CLK 13
/* PERIC1 */
#define PCLK_UART1 1
--
cgit v1.2.1
From b2de525f095708b2adbadaec3f1e4017a23d1e09 Mon Sep 17 00:00:00 2001
From: David Jeffery <djeffery@redhat.com>
Date: Mon, 29 Sep 2014 10:21:10 -0400
Subject: Return short read or 0 at end of a raw device, not EIO
Author: David Jeffery <djeffery@redhat.com>
Changes to the basic direct I/O code have broken the raw driver when reading
to the end of a raw device. Instead of returning a short read for a read that
extends partially beyond the device's end or 0 when at the end of the device,
these reads now return EIO.
The raw driver needs the same end of device handling as was added for normal
block devices. Using blkdev_read_iter, which has the needed size checks,
prevents the EIO conditions at the end of the device.
Signed-off-by: David Jeffery <djeffery@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 01036262095f..9ab779e8a63c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2469,6 +2469,7 @@ extern ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, lo
extern ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos);
/* fs/block_dev.c */
+extern ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to);
extern ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from);
extern int blkdev_fsync(struct file *filp, loff_t start, loff_t end,
int datasync);
--
cgit v1.2.1
From 77deed2bbd64e88b3c31283a6ecf771d637ff161 Mon Sep 17 00:00:00 2001
From: Gabriel FERNANDEZ <gabriel.fernandez@st.com>
Date: Thu, 4 Sep 2014 14:59:00 +0200
Subject: ARM: STi: DT: STiH407: Add all defines for STiH407 DT clocks
This patch adds all clock defines for clockgen C0,D0,D2 and D3
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
---
include/dt-bindings/clock/stih407-clks.h | 75 ++++++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/stih407-clks.h b/include/dt-bindings/clock/stih407-clks.h
index 1f9bfe0e47f8..7af2b717b3b2 100644
--- a/include/dt-bindings/clock/stih407-clks.h
+++ b/include/dt-bindings/clock/stih407-clks.h
@@ -6,6 +6,81 @@
#define _DT_BINDINGS_CLK_STIH407
/* CLOCKGEN C0 */
+#define CLK_ICN_GPU 0
+#define CLK_FDMA 1
+#define CLK_NAND 2
+#define CLK_HVA 3
+#define CLK_PROC_STFE 4
+#define CLK_PROC_TP 5
+#define CLK_RX_ICN_DMU 6
+#define CLK_RX_ICN_DISP_0 6
+#define CLK_RX_ICN_DISP_1 6
+#define CLK_RX_ICN_HVA 7
+#define CLK_RX_ICN_TS 7
+#define CLK_ICN_CPU 8
+#define CLK_TX_ICN_DMU 9
+#define CLK_TX_ICN_HVA 9
+#define CLK_TX_ICN_TS 9
+#define CLK_ICN_COMPO 9
+#define CLK_MMC_0 10
+#define CLK_MMC_1 11
+#define CLK_JPEGDEC 12
+#define CLK_ICN_REG 13
+#define CLK_TRACE_A9 13
+#define CLK_PTI_STM 13
#define CLK_EXT2F_A9 13
+#define CLK_IC_BDISP_0 14
+#define CLK_IC_BDISP_1 15
+#define CLK_PP_DMU 16
+#define CLK_VID_DMU 17
+#define CLK_DSS_LPC 18
+#define CLK_ST231_AUD_0 19
+#define CLK_ST231_GP_0 19
+#define CLK_ST231_GP_1 20
+#define CLK_ST231_DMU 21
+#define CLK_ICN_LMI 22
+#define CLK_TX_ICN_DISP_0 23
+#define CLK_TX_ICN_DISP_1 23
+#define CLK_ICN_SBC 24
+#define CLK_STFE_FRC2 25
+#define CLK_ETH_PHY 26
+#define CLK_ETH_REF_PHYCLK 27
+#define CLK_FLASH_PROMIP 28
+#define CLK_MAIN_DISP 29
+#define CLK_AUX_DISP 30
+#define CLK_COMPO_DVP 31
+/* CLOCKGEN D0 */
+#define CLK_PCM_0 0
+#define CLK_PCM_1 1
+#define CLK_PCM_2 2
+#define CLK_SPDIFF 3
+
+/* CLOCKGEN D2 */
+#define CLK_PIX_MAIN_DISP 0
+#define CLK_PIX_PIP 1
+#define CLK_PIX_GDP1 2
+#define CLK_PIX_GDP2 3
+#define CLK_PIX_GDP3 4
+#define CLK_PIX_GDP4 5
+#define CLK_PIX_AUX_DISP 6
+#define CLK_DENC 7
+#define CLK_PIX_HDDAC 8
+#define CLK_HDDAC 9
+#define CLK_SDDAC 10
+#define CLK_PIX_DVO 11
+#define CLK_DVO 12
+#define CLK_PIX_HDMI 13
+#define CLK_TMDS_HDMI 14
+#define CLK_REF_HDMIPHY 15
+
+/* CLOCKGEN D3 */
+#define CLK_STFE_FRC1 0
+#define CLK_TSOUT_0 1
+#define CLK_TSOUT_1 2
+#define CLK_MCHI 3
+#define CLK_VSENS_COMPO 4
+#define CLK_FRC1_REMOTE 5
+#define CLK_LPC_0 6
+#define CLK_LPC_1 7
#endif
--
cgit v1.2.1
From 052b9498eea532deb5de75277a53f6e0623215dc Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Sat, 25 Oct 2014 18:24:57 +0200
Subject: netfilter: nf_reject_ipv4: split nf_send_reset() in smaller functions
That can be reused by the reject bridge expression to build the reject
packet. The new functions are:
* nf_reject_ip_tcphdr_get(): to sanitize and to obtain the TCP header.
* nf_reject_iphdr_put(): to build the IPv4 header.
* nf_reject_ip_tcphdr_put(): to build the TCP header.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv4/nf_reject.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/net/netfilter/ipv4/nf_reject.h b/include/net/netfilter/ipv4/nf_reject.h
index e8427193c777..03e928a55229 100644
--- a/include/net/netfilter/ipv4/nf_reject.h
+++ b/include/net/netfilter/ipv4/nf_reject.h
@@ -1,6 +1,8 @@
#ifndef _IPV4_NF_REJECT_H
#define _IPV4_NF_REJECT_H
+#include <linux/skbuff.h>
+#include <net/ip.h>
#include <net/icmp.h>
static inline void nf_send_unreach(struct sk_buff *skb_in, int code)
@@ -10,4 +12,12 @@ static inline void nf_send_unreach(struct sk_buff *skb_in, int code)
void nf_send_reset(struct sk_buff *oldskb, int hook);
+const struct tcphdr *nf_reject_ip_tcphdr_get(struct sk_buff *oldskb,
+ struct tcphdr *_oth, int hook);
+struct iphdr *nf_reject_iphdr_put(struct sk_buff *nskb,
+ const struct sk_buff *oldskb,
+ __be16 protocol, int ttl);
+void nf_reject_ip_tcphdr_put(struct sk_buff *nskb, const struct sk_buff *oldskb,
+ const struct tcphdr *oth);
+
#endif /* _IPV4_NF_REJECT_H */
--
cgit v1.2.1
From 8bfcdf6671b1c8006c52c3eaf9fd1b5dfcf41c3d Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Sun, 26 Oct 2014 12:35:54 +0100
Subject: netfilter: nf_reject_ipv6: split nf_send_reset6() in smaller
functions
That can be reused by the reject bridge expression to build the reject
packet. The new functions are:
* nf_reject_ip6_tcphdr_get(): to sanitize and to obtain the TCP header.
* nf_reject_ip6hdr_put(): to build the IPv6 header.
* nf_reject_ip6_tcphdr_put(): to build the TCP header.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv6/nf_reject.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/net/netfilter/ipv6/nf_reject.h b/include/net/netfilter/ipv6/nf_reject.h
index 48e18810a9be..23216d48abf9 100644
--- a/include/net/netfilter/ipv6/nf_reject.h
+++ b/include/net/netfilter/ipv6/nf_reject.h
@@ -15,4 +15,14 @@ nf_send_unreach6(struct net *net, struct sk_buff *skb_in, unsigned char code,
void nf_send_reset6(struct net *net, struct sk_buff *oldskb, int hook);
+const struct tcphdr *nf_reject_ip6_tcphdr_get(struct sk_buff *oldskb,
+ struct tcphdr *otcph,
+ unsigned int *otcplen, int hook);
+struct ipv6hdr *nf_reject_ip6hdr_put(struct sk_buff *nskb,
+ const struct sk_buff *oldskb,
+ __be16 protocol, int hoplimit);
+void nf_reject_ip6_tcphdr_put(struct sk_buff *nskb,
+ const struct sk_buff *oldskb,
+ const struct tcphdr *oth, unsigned int otcplen);
+
#endif /* _IPV6_NF_REJECT_H */
--
cgit v1.2.1
From f3bea49115b21e0995abf41402ad2f4d9c69eda4 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 2 Jul 2014 23:23:31 -0400
Subject: ftrace/x86: Add dynamic allocated trampoline for ftrace_ops
The current method of handling multiple function callbacks is to register
a list function callback that calls all the other callbacks based on
their hash tables and compare it to the function that the callback was
called on. But this is very inefficient.
For example, if you are tracing all functions in the kernel and then
add a kprobe to a function such that the kprobe uses ftrace, the
mcount trampoline will switch from calling the function trace callback
to calling the list callback that will iterate over all registered
ftrace_ops (in this case, the function tracer and the kprobes callback).
That means for every function being traced it checks the hash of the
ftrace_ops for function tracing and kprobes, even though the kprobes
is only set at a single function. The kprobes ftrace_ops is checked
for every function being traced!
Instead of calling the list function for functions that are only being
traced by a single callback, we can call a dynamically allocated
trampoline that calls the callback directly. The function graph tracer
already uses a direct call trampoline when it is being traced by itself
but it is not dynamically allocated. It's trampoline is static in the
kernel core. The infrastructure that called the function graph trampoline
can also be used to call a dynamically allocated one.
For now, only ftrace_ops that are not dynamically allocated can have
a trampoline. That is, users such as function tracer or stack tracer.
kprobes and perf allocate their ftrace_ops, and until there's a safe
way to free the trampoline, it can not be used. The dynamically allocated
ftrace_ops may, although, use the trampoline if the kernel is not
compiled with CONFIG_PREEMPT. But that will come later.
Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 662697babd48..06e3ca5a5083 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -94,6 +94,13 @@ ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops);
* ADDING - The ops is in the process of being added.
* REMOVING - The ops is in the process of being removed.
* MODIFYING - The ops is in the process of changing its filter functions.
+ * ALLOC_TRAMP - A dynamic trampoline was allocated by the core code.
+ * The arch specific code sets this flag when it allocated a
+ * trampoline. This lets the arch know that it can update the
+ * trampoline in case the callback function changes.
+ * The ftrace_ops trampoline can be set by the ftrace users, and
+ * in such cases the arch must not modify it. Only the arch ftrace
+ * core code should set this flag.
*/
enum {
FTRACE_OPS_FL_ENABLED = 1 << 0,
@@ -108,6 +115,7 @@ enum {
FTRACE_OPS_FL_ADDING = 1 << 9,
FTRACE_OPS_FL_REMOVING = 1 << 10,
FTRACE_OPS_FL_MODIFYING = 1 << 11,
+ FTRACE_OPS_FL_ALLOC_TRAMP = 1 << 12,
};
#ifdef CONFIG_DYNAMIC_FTRACE
--
cgit v1.2.1
From ac7576f4b1da8c9c6bc1ae026c2b9e86ae617ba5 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <miklos@szeredi.hu>
Date: Thu, 30 Oct 2014 17:37:34 +0100
Subject: vfs: make first argument of dir_context.actor typed
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/fs.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9ab779e8a63c..00c8e4f65cb6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1467,7 +1467,10 @@ int fiemap_check_flags(struct fiemap_extent_info *fieinfo, u32 fs_flags);
* This allows the kernel to read directories into kernel space or
* to have different dirent layouts depending on the binary type.
*/
-typedef int (*filldir_t)(void *, const char *, int, loff_t, u64, unsigned);
+struct dir_context;
+typedef int (*filldir_t)(struct dir_context *, const char *, int, loff_t, u64,
+ unsigned);
+
struct dir_context {
const filldir_t actor;
loff_t pos;
--
cgit v1.2.1
From a7400222e3eb7d5ce3820d2234905bbeafabd171 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 21 Oct 2014 15:20:42 -0400
Subject: new helper: is_root_inode()
replace open-coded instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/fs.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 00c8e4f65cb6..1c12c681803f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2789,6 +2789,11 @@ static inline void inode_has_no_xattr(struct inode *inode)
inode->i_flags |= S_NOSEC;
}
+static inline bool is_root_inode(struct inode *inode)
+{
+ return inode == inode->i_sb->s_root->d_inode;
+}
+
static inline bool dir_emit(struct dir_context *ctx,
const char *name, int namelen,
u64 ino, unsigned type)
--
cgit v1.2.1
From a5dd1d72d868ec9c8f44d60ca29900b6a38321b4 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 2 Nov 2014 04:18:35 +0100
Subject: cfg802154: introduce cfg802154_registered_device
This patch introduce the cfg802154_registered_device struct. Like
cfg80211_registered_device in wireless this should contain similar
functionality for cfg802154. This patch should not change any behaviour.
We just adds cfg802154_registered_device as container for wpan_phy struct.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 440b9bece9c6..12de66bda9a5 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -29,6 +29,11 @@
#define WPAN_NUM_CHANNELS 27
#define WPAN_NUM_PAGES 32
+struct wpan_phy;
+
+struct cfg802154_ops {
+};
+
struct wpan_phy {
struct mutex pib_lock;
@@ -62,7 +67,8 @@ struct wpan_phy {
#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
-struct wpan_phy *wpan_phy_alloc(size_t priv_size);
+struct wpan_phy *
+wpan_phy_alloc(const struct cfg802154_ops *ops, size_t priv_size);
static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
{
phy->dev.parent = dev;
--
cgit v1.2.1
From 4a9a816a4f8c79260446811bdf80615b36539949 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 2 Nov 2014 04:18:38 +0100
Subject: cfg802154: convert deprecated iface add and del
This patch removes the wpan_phy callbacks for add and del an interface
on a phy. Instead we introduce deprecated cfg802154 callbacks for this.
Furthermore we introduce a new netlink interface nl802154 which use
different callbacks. The deprecated function is to have a backwards
compatibility with the current netlink interface.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 12de66bda9a5..864bce2b0728 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -32,6 +32,11 @@
struct wpan_phy;
struct cfg802154_ops {
+ struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
+ const char *name,
+ int type);
+ void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
+ struct net_device *dev);
};
struct wpan_phy {
@@ -58,10 +63,6 @@ struct wpan_phy {
struct device dev;
int idx;
- struct net_device *(*add_iface)(struct wpan_phy *phy,
- const char *name, int type);
- void (*del_iface)(struct wpan_phy *phy, struct net_device *dev);
-
char priv[0] __aligned(NETDEV_ALIGN);
};
--
cgit v1.2.1
From ab24f50f2a3e3f6a38b4852530534aa99d86b4d1 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 2 Nov 2014 04:18:40 +0100
Subject: mac802154: add helper for converting dev_addr
This patch adds a helper for converting the dev_addr attribute in
netdevice to __le64 type. The dev_addr attribute is a char pointer
and contains the extended address in big endian byte order.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 8f1de6844cb0..c17acbd0dadc 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -214,6 +214,15 @@ struct ieee802154_ops {
const bool on);
};
+/**
+ * ieee802154_netdev_to_extended_addr - convert __be64 u8 pointer to __le64
+ * @dev_addr: big endian address pointer like netdevice dev_addr attribute
+ */
+static inline __le64 ieee802154_netdev_to_extended_addr(const u8 *dev_addr)
+{
+ return (__le64)swab64(*((__be64 *)dev_addr));
+}
+
/* Basic interface to register ieee802154 hwice */
struct ieee802154_hw *
ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops);
--
cgit v1.2.1
From cb904b0a16305f9b2a98200cc6eb9dc3610278b0 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 2 Nov 2014 04:18:45 +0100
Subject: ieee802154: add extended address validation helper
This patch introduce an extended address validation helper to check if
an extended address is valid or not.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index 6e50a2a1d485..9bba5ca7f0ad 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -197,4 +197,18 @@ static inline bool ieee802154_is_valid_psdu_len(const u8 len)
return (len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU);
}
+/**
+ * ieee802154_is_valid_psdu_len - check if extended addr is valid
+ * @addr: extended addr to check
+ */
+static inline bool ieee802154_is_valid_extended_addr(const __le64 addr)
+{
+ /* These EUI-64 addresses are reserved by IEEE. 0xffffffffffffffff
+ * is used internally as extended to short address broadcast mapping.
+ * This is currently a workaround because neighbor discovery can't
+ * deal with short addresses types right now.
+ */
+ return ((addr != 0x0000000000000000) || (addr != 0xffffffffffffffff));
+}
+
#endif /* LINUX_IEEE802154_H */
--
cgit v1.2.1
From 24dfa343716a493472db0555342bb88678efa444 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 2 Nov 2014 02:56:41 +0100
Subject: Bluetooth: Print error message for HCI_Hardware_Error event
When the HCI_Hardware_Error event is send by the controller or
injected by the driver, then at least print an error message.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 6e8f24967308..ecfa306e1375 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1463,6 +1463,11 @@ struct hci_ev_cmd_status {
__le16 opcode;
} __packed;
+#define HCI_EV_HARDWARE_ERROR 0x10
+struct hci_ev_hardware_error {
+ __u8 code;
+} __packed;
+
#define HCI_EV_ROLE_CHANGE 0x12
struct hci_ev_role_change {
__u8 status;
--
cgit v1.2.1
From 75e0569f7fc22272ec5e3b99bf94c6f0ad43b35f Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 2 Nov 2014 08:15:38 +0100
Subject: Bluetooth: Add hci_reset_dev() for driver triggerd stack reset
Some Bluetooth drivers require to reset the upper stack. To avoid having
all drivers send HCI Hardware Error events, provide a generic function
to wrap the reset functionality.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b8685a77a15e..27ddb905b351 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -856,6 +856,7 @@ int hci_register_dev(struct hci_dev *hdev);
void hci_unregister_dev(struct hci_dev *hdev);
int hci_suspend_dev(struct hci_dev *hdev);
int hci_resume_dev(struct hci_dev *hdev);
+int hci_reset_dev(struct hci_dev *hdev);
int hci_dev_open(__u16 dev);
int hci_dev_close(__u16 dev);
int hci_dev_reset(__u16 dev);
--
cgit v1.2.1
From a4164eb4dd3f4f2a22f8bf7b26394e8384f3d9a2 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 2 Nov 2014 21:43:01 +0100
Subject: ieee802154: add missing ULL definition
Running make C=2 occurs warning:
constant 0xffffffffffffffff is so big it is unsigned long
This patch fix this warning by adding a ULL to the constant definitions.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index 9bba5ca7f0ad..9da7c011fbba 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -208,7 +208,8 @@ static inline bool ieee802154_is_valid_extended_addr(const __le64 addr)
* This is currently a workaround because neighbor discovery can't
* deal with short addresses types right now.
*/
- return ((addr != 0x0000000000000000) || (addr != 0xffffffffffffffff));
+ return ((addr != 0x0000000000000000ULL) ||
+ (addr != 0xffffffffffffffffULL));
}
#endif /* LINUX_IEEE802154_H */
--
cgit v1.2.1
From c28bee84c5c49312befe1b442e1044ac2392d80d Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 2 Nov 2014 21:43:02 +0100
Subject: ieee802154: fix byteorder issues
This patch fix byteorder issues which occurs because we compare __le64
with an host byteorder value. Simple add a cpu_to_le64 to convert the
host byteorder values to __le64.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index 9da7c011fbba..5d9e7459d94b 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -24,6 +24,7 @@
#define LINUX_IEEE802154_H
#include <linux/types.h>
+#include <asm/byteorder.h>
#define IEEE802154_MTU 127
#define IEEE802154_MIN_PSDU_LEN 5
@@ -208,8 +209,8 @@ static inline bool ieee802154_is_valid_extended_addr(const __le64 addr)
* This is currently a workaround because neighbor discovery can't
* deal with short addresses types right now.
*/
- return ((addr != 0x0000000000000000ULL) ||
- (addr != 0xffffffffffffffffULL));
+ return ((addr != cpu_to_le64(0x0000000000000000ULL)) ||
+ (addr != cpu_to_le64(0xffffffffffffffffULL)));
}
#endif /* LINUX_IEEE802154_H */
--
cgit v1.2.1
From f753f7eeb4178ab8eeaf513a4fdf1c20ddf40474 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 2 Nov 2014 21:43:03 +0100
Subject: mac802154: fix byteorder issues
Running make C=2 occurs these warnings:
cast from restricted __be64
incorrect type in argument 1 (different base types)
expected unsigned long long[unsigned] [usertype] val
got restricted __be64 [usertype]<noident>
cast from restricted __be64
cast to restricted __le64
This patch fix these warnings by forcing to __le64 type and using swabp64
instead swab64.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index c17acbd0dadc..8b0c26bc0762 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -215,12 +215,12 @@ struct ieee802154_ops {
};
/**
- * ieee802154_netdev_to_extended_addr - convert __be64 u8 pointer to __le64
+ * ieee802154_netdev_to_extended_addr - convert big endian 64 byte void pointer to __le64
* @dev_addr: big endian address pointer like netdevice dev_addr attribute
*/
-static inline __le64 ieee802154_netdev_to_extended_addr(const u8 *dev_addr)
+static inline __le64 ieee802154_netdev_to_extended_addr(const void *dev_addr)
{
- return (__le64)swab64(*((__be64 *)dev_addr));
+ return (__force __le64)swab64p(dev_addr);
}
/* Basic interface to register ieee802154 hwice */
--
cgit v1.2.1
From 43d6bc46e2d342204693d24ce1c607305d93d8fb Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 2 Nov 2014 20:52:23 +0100
Subject: Bluetooth: Introduce HCI_QUIRK_STRICT_DUPLICATE_FILTER
Some vendors decide to use a strict duplicate filter policy that only
filters on Bluetooth device addresses. This means that when the RSSI
changes, these devices are not reported again. During discovery it is
useful to actually get the RSSI updates.
Since this is specific to each controller, add a new quirk setting
that allows drivers to tell the core what kind of filtering policy
the controller uses.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index ecfa306e1375..2e08f5a89463 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -129,6 +129,15 @@ enum {
* during the hdev->setup vendor callback.
*/
HCI_QUIRK_INVALID_BDADDR,
+
+ /* When this quirk is set, the duplicate filtering during
+ * scanning is based on Bluetooth devices addresses. To allow
+ * RSSI based updates, restart scanning if needed.
+ *
+ * This quirk can be set before hci_register_dev is called or
+ * during the hdev->setup vendor callback.
+ */
+ HCI_QUIRK_STRICT_DUPLICATE_FILTER,
};
/* HCI device flags */
--
cgit v1.2.1
From 845472e8d50c898c73b4f69f4edad5249b13d6a9 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 3 Nov 2014 05:16:08 +0100
Subject: Bluetooth: Add hci_conn_lookup_type() helper function
Some drivers require knowledge of what connection handle is assigned
to what connection link type (ACL or SCO/eSCO). Instead of having each
driver implement connection tracking, provide a simple helper function
for lookup of the link type.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci.h | 1 +
include/net/bluetooth/hci_core.h | 20 ++++++++++++++++++++
2 files changed, 21 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 2e08f5a89463..d5f85d7746bc 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -274,6 +274,7 @@ enum {
/* Low Energy links do not have defined link type. Use invented one */
#define LE_LINK 0x80
#define AMP_LINK 0x81
+#define INVALID_LINK 0xff
/* LMP features */
#define LMP_3SLOT 0x01
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 27ddb905b351..4e39a5adfcab 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -646,6 +646,26 @@ static inline unsigned int hci_conn_count(struct hci_dev *hdev)
return c->acl_num + c->amp_num + c->sco_num + c->le_num;
}
+static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *c;
+ __u8 type = INVALID_LINK;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->handle == handle) {
+ type = c->type;
+ break;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return type;
+}
+
static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
__u16 handle)
{
--
cgit v1.2.1
From 7f05db6a20fe4d85bada20d365c78029831b9de1 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Sun, 12 Oct 2014 11:34:00 +0300
Subject: kvm: drop unsupported capabilities, fix documentation
No kernel ever reported KVM_CAP_DEVICE_MSIX, KVM_CAP_DEVICE_MSI,
KVM_CAP_DEVICE_ASSIGNMENT, KVM_CAP_DEVICE_DEASSIGNMENT.
This makes the documentation wrong, and no application ever
written to use these capabilities has a chance to work correctly.
The only way to detect support is to try, and test errno for ENOTTY.
That's unfortunate, but we can't fix the past.
Document the actual semantics, and drop the definitions from
the exported header to make it easier for application
developers to note and fix the bug.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/uapi/linux/kvm.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 60768822b140..6d59e5b39c9c 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -647,11 +647,7 @@ struct kvm_ppc_smmu_info {
#define KVM_CAP_MP_STATE 14
#define KVM_CAP_COALESCED_MMIO 15
#define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */
-#define KVM_CAP_DEVICE_ASSIGNMENT 17
#define KVM_CAP_IOMMU 18
-#ifdef __KVM_HAVE_MSI
-#define KVM_CAP_DEVICE_MSI 20
-#endif
/* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
#define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
#define KVM_CAP_USER_NMI 22
@@ -663,10 +659,6 @@ struct kvm_ppc_smmu_info {
#endif
#define KVM_CAP_IRQ_ROUTING 25
#define KVM_CAP_IRQ_INJECT_STATUS 26
-#define KVM_CAP_DEVICE_DEASSIGNMENT 27
-#ifdef __KVM_HAVE_MSIX
-#define KVM_CAP_DEVICE_MSIX 28
-#endif
#define KVM_CAP_ASSIGN_DEV_IRQ 29
/* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
#define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
--
cgit v1.2.1
From dd63a9c2952ed142c64fd68c1a74d0d6fcac586f Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 3 Nov 2014 10:31:47 +0100
Subject: ASoC: Remove snd_soc_platform_driver suspend/resume callbacks
Those are unused and new drivers should use device driver suspend/resume.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index ad47e9660b22..edbb07ba4cb5 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -857,8 +857,6 @@ struct snd_soc_platform_driver {
int (*probe)(struct snd_soc_platform *);
int (*remove)(struct snd_soc_platform *);
- int (*suspend)(struct snd_soc_dai *dai);
- int (*resume)(struct snd_soc_dai *dai);
struct snd_soc_component_driver component_driver;
/* pcm creation and destruction */
@@ -891,8 +889,6 @@ struct snd_soc_platform {
struct device *dev;
const struct snd_soc_platform_driver *driver;
- unsigned int suspended:1; /* platform is suspended */
-
struct list_head list;
struct snd_soc_component component;
--
cgit v1.2.1
From 2a374b78f5c2b5f31d35f8a7cd004989d6936756 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 3 Nov 2014 10:31:48 +0100
Subject: ASoC: Remove platform field from snd_soc_dai
Typically a DAI does not need direct access to the platform. Currently the
only user of this field is in a platform driver where we have a more direct
way of getting a pointer to the platform. This patch updates the driver to
use the more direct way and then removes the platform field from the
snd_soc_dai struct.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dai.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index e8b3080d196a..45d0fa10ab9e 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -268,7 +268,6 @@ struct snd_soc_dai {
unsigned int sample_bits;
/* parent platform/codec */
- struct snd_soc_platform *platform;
struct snd_soc_codec *codec;
struct snd_soc_component *component;
--
cgit v1.2.1
From 1a3f83f6493f9d78aa0fe31401fd530b0fe296da Mon Sep 17 00:00:00 2001
From: JD Cole <jd@jdc.me>
Date: Fri, 31 Oct 2014 17:34:42 -0700
Subject: HID: plantronics: fix errant mouse events
This version of the driver prevents Telephony pages which are not mapped as
Consumer Control applications AND are not on the Consumer Page from being
registered by the hid-input driver.
Signed-off-by: JD Cole <jd.cole@plantronics.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/hid.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 78ea9bf941cd..a63f2aaed646 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -234,6 +234,9 @@ struct hid_item {
#define HID_DG_BARRELSWITCH 0x000d0044
#define HID_DG_ERASER 0x000d0045
#define HID_DG_TABLETPICK 0x000d0046
+
+#define HID_CP_CONSUMERCONTROL 0x000c0001
+
#define HID_DG_CONFIDENCE 0x000d0047
#define HID_DG_WIDTH 0x000d0048
#define HID_DG_HEIGHT 0x000d0049
--
cgit v1.2.1
From a45c30ec59342c47604ea074bcf56a43a8cde8aa Mon Sep 17 00:00:00 2001
From: JD Cole <jd@jdc.me>
Date: Fri, 31 Oct 2014 17:44:42 -0700
Subject: HID: added missing HID Consumer Page identifiers
Adds CA and NAry usage type identifiers.
Signed-off-by: JD Cole <jd.cole@plantronics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/hid.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
(limited to 'include')
diff --git a/include/linux/hid.h b/include/linux/hid.h
index a63f2aaed646..58a89ed86acc 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -236,6 +236,30 @@ struct hid_item {
#define HID_DG_TABLETPICK 0x000d0046
#define HID_CP_CONSUMERCONTROL 0x000c0001
+#define HID_CP_NUMERICKEYPAD 0x000c0002
+#define HID_CP_PROGRAMMABLEBUTTONS 0x000c0003
+#define HID_CP_MICROPHONE 0x000c0004
+#define HID_CP_HEADPHONE 0x000c0005
+#define HID_CP_GRAPHICEQUALIZER 0x000c0006
+#define HID_CP_FUNCTIONBUTTONS 0x000c0036
+#define HID_CP_SELECTION 0x000c0080
+#define HID_CP_MEDIASELECTION 0x000c0087
+#define HID_CP_SELECTDISC 0x000c00ba
+#define HID_CP_PLAYBACKSPEED 0x000c00f1
+#define HID_CP_PROXIMITY 0x000c0109
+#define HID_CP_SPEAKERSYSTEM 0x000c0160
+#define HID_CP_CHANNELLEFT 0x000c0161
+#define HID_CP_CHANNELRIGHT 0x000c0162
+#define HID_CP_CHANNELCENTER 0x000c0163
+#define HID_CP_CHANNELFRONT 0x000c0164
+#define HID_CP_CHANNELCENTERFRONT 0x000c0165
+#define HID_CP_CHANNELSIDE 0x000c0166
+#define HID_CP_CHANNELSURROUND 0x000c0167
+#define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT 0x000c0168
+#define HID_CP_CHANNELTOP 0x000c0169
+#define HID_CP_CHANNELUNKNOWN 0x000c016a
+#define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180
+#define HID_CP_GENERICGUIAPPLICATIONCONTROLS 0x000c0200
#define HID_DG_CONFIDENCE 0x000d0047
#define HID_DG_WIDTH 0x000d0048
--
cgit v1.2.1
From 77d381af73e905c48b992d5d8426376469bc9576 Mon Sep 17 00:00:00 2001
From: Martin Kaiser <martin@kaiser.cx>
Date: Tue, 28 Oct 2014 18:51:01 -0300
Subject: [media] lirc: use kfifo_initialized() on lirc_buffer's fifo
We can use kfifo_initialized() to check if the fifo in lirc_buffer is
initialized or not. There's no need to have a dedicated fifo status
variable in lirc_buffer.
[m.chehab@samsung.com: add the same change to lirc_zilog, to avoid
breaking compilation of staging drivers]
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/lirc_dev.h | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/media/lirc_dev.h b/include/media/lirc_dev.h
index 78f0637ca68d..05e7ad5d2c8b 100644
--- a/include/media/lirc_dev.h
+++ b/include/media/lirc_dev.h
@@ -29,14 +29,13 @@ struct lirc_buffer {
/* Using chunks instead of bytes pretends to simplify boundary checking
* And should allow for some performance fine tunning later */
struct kfifo fifo;
- u8 fifo_initialized;
};
static inline void lirc_buffer_clear(struct lirc_buffer *buf)
{
unsigned long flags;
- if (buf->fifo_initialized) {
+ if (kfifo_initialized(&buf->fifo)) {
spin_lock_irqsave(&buf->fifo_lock, flags);
kfifo_reset(&buf->fifo);
spin_unlock_irqrestore(&buf->fifo_lock, flags);
@@ -56,17 +55,14 @@ static inline int lirc_buffer_init(struct lirc_buffer *buf,
buf->chunk_size = chunk_size;
buf->size = size;
ret = kfifo_alloc(&buf->fifo, size * chunk_size, GFP_KERNEL);
- if (ret == 0)
- buf->fifo_initialized = 1;
return ret;
}
static inline void lirc_buffer_free(struct lirc_buffer *buf)
{
- if (buf->fifo_initialized) {
+ if (kfifo_initialized(&buf->fifo)) {
kfifo_free(&buf->fifo);
- buf->fifo_initialized = 0;
} else
WARN(1, "calling %s on an uninitialized lirc_buffer\n",
__func__);
--
cgit v1.2.1
From 6c93b5342374b3ff2a8beac050ed6e07373cbe95 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Thu, 18 Sep 2014 09:51:23 -0500
Subject: usb: gadget: composite: introduce setup and os_desc pending flags
These flags we be set to true whenever their
matching request is queued. They will be cleared
to false when that request completes.
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/composite.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index c330f5ef42cf..ed3811c09ec1 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -427,6 +427,8 @@ static inline struct usb_composite_driver *to_cdriver(
* @b_vendor_code: bMS_VendorCode part of the OS string
* @use_os_string: false by default, interested gadgets set it
* @os_desc_config: the configuration to be used with OS descriptors
+ * @setup_pending: true when setup request is queued but not completed
+ * @os_desc_pending: true when os_desc request is queued but not completed
*
* One of these devices is allocated and initialized before the
* associated device driver's bind() is called.
@@ -488,6 +490,9 @@ struct usb_composite_dev {
/* protects deactivations and delayed_status counts*/
spinlock_t lock;
+
+ unsigned setup_pending:1;
+ unsigned os_desc_pending:1;
};
extern int usb_string_id(struct usb_composite_dev *c);
--
cgit v1.2.1
From 3a571870856f63064a3a45d7ffa2526d597b7fbe Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 8 Oct 2014 12:03:36 +0200
Subject: usb: gadget: configfs: add suspend/resume
USB gadgets composed with configfs lack suspend and resume
methods. This patch uses composite_suspend()/composite_resume()
the same way e.g. composite_setup() or composite_disconnect()
are used in a configfs-based gadget.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/composite.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index ed3811c09ec1..3d87defcc527 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -506,6 +506,8 @@ extern int usb_string_ids_n(struct usb_composite_dev *c, unsigned n);
extern void composite_disconnect(struct usb_gadget *gadget);
extern int composite_setup(struct usb_gadget *gadget,
const struct usb_ctrlrequest *ctrl);
+extern void composite_suspend(struct usb_gadget *gadget);
+extern void composite_resume(struct usb_gadget *gadget);
/*
* Some systems will need runtime overrides for the product identifiers
--
cgit v1.2.1
From 22835b807e7ca946a4d1fbd4c7af56aa09cd273e Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Fri, 17 Oct 2014 12:05:12 -0500
Subject: usb: gadget: remove unnecessary 'driver' argument
now that no UDC driver relies on the extra
'driver' argument to ->udc_stop(), we can
safely remove it.
This commit is based on previous work by
Robert Baldyga <r.baldyga@samsung.com> which
can be found at [1]; however that patch turned
out to have a high probability of regressing
many UDC drivers because of a blind search & replace
s/driver/$udc->driver/ which caused the 'driver'
argument to stop_activity() to be a valid non-NULL
pointer when it should be NULL, thus causing UDCs
to mistakenly call gadget driver's ->disconnect()
callback.
[1] http://markmail.org/message/x5zneg4xea4zntab
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/gadget.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 522cafe26790..70965fc829d3 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -490,8 +490,7 @@ struct usb_gadget_ops {
void (*get_config_params)(struct usb_dcd_config_params *);
int (*udc_start)(struct usb_gadget *,
struct usb_gadget_driver *);
- int (*udc_stop)(struct usb_gadget *,
- struct usb_gadget_driver *);
+ int (*udc_stop)(struct usb_gadget *);
};
/**
--
cgit v1.2.1
From 02e8c966274f1049cca8d3f17092f8275979b8eb Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Fri, 17 Oct 2014 18:57:06 -0500
Subject: usb: gadget: udc: core: prepend udc_attach_driver with usb_
No functional changes, just adding a prefix
which should have been there from the start.
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/gadget.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 70965fc829d3..70ddb3943b62 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -924,7 +924,7 @@ extern int usb_add_gadget_udc_release(struct device *parent,
struct usb_gadget *gadget, void (*release)(struct device *dev));
extern int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget);
extern void usb_del_gadget_udc(struct usb_gadget *gadget);
-extern int udc_attach_driver(const char *name,
+extern int usb_udc_attach_driver(const char *name,
struct usb_gadget_driver *driver);
/*-------------------------------------------------------------------------*/
--
cgit v1.2.1
From e47d92545c2972bcf3711e7db80f481e402163c7 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <antoine.tenart@free-electrons.com>
Date: Thu, 30 Oct 2014 18:41:13 +0100
Subject: usb: move the OTG state from the USB PHY to the OTG structure
Before using the PHY framework instead of the USB PHY one, we need to
move the OTG state into another place, since it won't be available when
USB PHY isn't used. This patch moves the OTG state into the OTG
structure, and makes all the needed modifications in the drivers
using the OTG state.
[ balbi@ti.com : fix build regressions with phy-tahvo.c, musb_dsps.c,
phy-isp1301-omap, and chipidea's debug.c ]
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/otg.h | 2 ++
include/linux/usb/phy.h | 1 -
2 files changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 154332b7c8c0..33d3480c9cda 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -18,6 +18,8 @@ struct usb_otg {
struct usb_bus *host;
struct usb_gadget *gadget;
+ enum usb_otg_state state;
+
/* bind/unbind the host controller */
int (*set_host)(struct usb_otg *otg, struct usb_bus *host);
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index 353053a33f21..ac7d7913694f 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -77,7 +77,6 @@ struct usb_phy {
unsigned int flags;
enum usb_phy_type type;
- enum usb_otg_state state;
enum usb_phy_events last_event;
struct usb_otg *otg;
--
cgit v1.2.1
From 19c1eac2685b62640ca2386a0a885ac2152668c8 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <antoine.tenart@free-electrons.com>
Date: Thu, 30 Oct 2014 18:41:14 +0100
Subject: usb: rename phy to usb_phy in OTG
This patch prepares the introduction of the generic PHY support in the
USB OTG common functions. The USB PHY member of the OTG structure is
renamed to 'usb_phy' and modifications are done in all drivers accessing
it. Renaming this pointer will allow to keep the compatibility for USB
PHY drivers.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/otg.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 33d3480c9cda..978fbbb0e266 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -14,7 +14,7 @@
struct usb_otg {
u8 default_a;
- struct usb_phy *phy;
+ struct usb_phy *usb_phy;
struct usb_bus *host;
struct usb_gadget *gadget;
--
cgit v1.2.1
From 48bcc18076df4e07ef86226ac6ce795f64c84f7f Mon Sep 17 00:00:00 2001
From: Antoine Tenart <antoine.tenart@free-electrons.com>
Date: Thu, 30 Oct 2014 18:41:15 +0100
Subject: usb: add support to the generic PHY framework in OTG
This patch adds support of the PHY framework in OTG and keeps the USB
PHY compatibility. Here the only modification is to add PHY member in
the OTG structure, along with the USB PHY one.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/otg.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 978fbbb0e266..52661c5da690 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -9,11 +9,14 @@
#ifndef __LINUX_USB_OTG_H
#define __LINUX_USB_OTG_H
+#include <linux/phy/phy.h>
#include <linux/usb/phy.h>
struct usb_otg {
u8 default_a;
+ struct phy *phy;
+ /* old usb_phy interface */
struct usb_phy *usb_phy;
struct usb_bus *host;
struct usb_gadget *gadget;
--
cgit v1.2.1
From ef44cb4226d132146e44f8ea562a16b27ff61126 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <antoine.tenart@free-electrons.com>
Date: Thu, 30 Oct 2014 18:41:16 +0100
Subject: usb: allow to supply the PHY in the drivers when using HCD
This patch modify the generic code handling PHYs to allow them to be
supplied from the drivers. This adds checks to ensure no PHY was already
there when looking for one in the generic code. This also makes sure we
do not modify its state in the generic HCD functions, it was provided by
the driver.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/chipidea.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index e14c09a45c5a..4fe161a84c7d 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -13,7 +13,7 @@ struct ci_hdrc_platform_data {
/* offset of the capability registers */
uintptr_t capoffset;
unsigned power_budget;
- struct usb_phy *phy;
+ struct usb_phy *usb_phy;
enum usb_phy_interface phy_mode;
unsigned long flags;
#define CI_HDRC_REGS_SHARED BIT(0)
--
cgit v1.2.1
From 1e5e2d3d055436c114e2f16145b83339aed024ff Mon Sep 17 00:00:00 2001
From: Antoine Tenart <antoine.tenart@free-electrons.com>
Date: Thu, 30 Oct 2014 18:41:19 +0100
Subject: usb: chipidea: add support to the generic PHY framework
This patch adds support of the PHY framework for ChipIdea drivers.
Changes are done in both the ChipIdea common code and in the drivers
accessing the PHY. This is done by adding a new PHY member in
ChipIdea's structures and by taking care of it in the code.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/chipidea.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index 4fe161a84c7d..c01bf4ea27b9 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -13,6 +13,8 @@ struct ci_hdrc_platform_data {
/* offset of the capability registers */
uintptr_t capoffset;
unsigned power_budget;
+ struct phy *phy;
+ /* old usb_phy interface */
struct usb_phy *usb_phy;
enum usb_phy_interface phy_mode;
unsigned long flags;
--
cgit v1.2.1
From c53a2b512b6f2b9b1b6353c1587b8b069997852f Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Fri, 31 Oct 2014 11:11:15 +0800
Subject: PCI: Add support for AMD Nolan USB3 DRD
This patch adds PCI id for USB3 Dual-Role Device of AMD Nolan (NL) SoC.
It will be used for PCI quirks and DWC3 device driver.
Signed-off-by: Jason Chang <jason.chang@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/pci_ids.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 1fa99a301817..5decad77d8ed 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -562,6 +562,7 @@
#define PCI_DEVICE_ID_AMD_8131_BRIDGE 0x7450
#define PCI_DEVICE_ID_AMD_8131_APIC 0x7451
#define PCI_DEVICE_ID_AMD_8132_BRIDGE 0x7458
+#define PCI_DEVICE_ID_AMD_NL_USB 0x7912
#define PCI_DEVICE_ID_AMD_CS5535_IDE 0x208F
#define PCI_DEVICE_ID_AMD_CS5536_ISA 0x2090
#define PCI_DEVICE_ID_AMD_CS5536_FLASH 0x2091
--
cgit v1.2.1
From f353d71f75394e518b4d939aea2030d8e239dd41 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Wed, 22 Oct 2014 00:00:14 +0900
Subject: treewide: Fix typo in Documentation/DocBook/device-drivers
This patch fix speeling typo found in html files within
Documentation/DocBook/device-drivers.
It is because html files are generated from comments in source,
so I have to fix comments in the source.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---
include/linux/fence.h | 4 ++--
include/linux/i2c.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/fence.h b/include/linux/fence.h
index d174585b874b..39efee130d2b 100644
--- a/include/linux/fence.h
+++ b/include/linux/fence.h
@@ -128,8 +128,8 @@ struct fence_cb {
* from irq context, so normal spinlocks can be used.
*
* A return value of false indicates the fence already passed,
- * or some failure occured that made it impossible to enable
- * signaling. True indicates succesful enabling.
+ * or some failure occurred that made it impossible to enable
+ * signaling. True indicates successful enabling.
*
* fence->status may be set in enable_signaling, but only when false is
* returned.
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index b556e0ab946f..70ee0d3a2be3 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -359,7 +359,7 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info,
* to name two of the most common.
*
* The return codes from the @master_xfer field should indicate the type of
- * error code that occured during the transfer, as documented in the kernel
+ * error code that occurred during the transfer, as documented in the kernel
* Documentation file Documentation/i2c/fault-codes.
*/
struct i2c_algorithm {
--
cgit v1.2.1
From 4cdb1e2e3d3495423db558d3bb7ed11d66aabce7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 2 Nov 2014 06:00:12 -0800
Subject: net: shrink struct softnet_data
flow_limit in struct softnet_data is only read from local cpu
and can be moved to fill a hole, reducing softnet_data size by
64 bytes on x86_64
While we are at it, move output_queue, output_queue_tailp and
completion_queue, so that rx / tx paths touch a single cache line.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c85e06512246..5ed05bd764dc 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2329,10 +2329,7 @@ extern int netdev_flow_limit_table_len;
* Incoming packets are placed on per-cpu queues
*/
struct softnet_data {
- struct Qdisc *output_queue;
- struct Qdisc **output_queue_tailp;
struct list_head poll_list;
- struct sk_buff *completion_queue;
struct sk_buff_head process_queue;
/* stats */
@@ -2340,10 +2337,17 @@ struct softnet_data {
unsigned int time_squeeze;
unsigned int cpu_collision;
unsigned int received_rps;
-
#ifdef CONFIG_RPS
struct softnet_data *rps_ipi_list;
+#endif
+#ifdef CONFIG_NET_FLOW_LIMIT
+ struct sd_flow_limit __rcu *flow_limit;
+#endif
+ struct Qdisc *output_queue;
+ struct Qdisc **output_queue_tailp;
+ struct sk_buff *completion_queue;
+#ifdef CONFIG_RPS
/* Elements below can be accessed between CPUs for RPS */
struct call_single_data csd ____cacheline_aligned_in_smp;
struct softnet_data *rps_ipi_next;
@@ -2355,9 +2359,6 @@ struct softnet_data {
struct sk_buff_head input_pkt_queue;
struct napi_struct backlog;
-#ifdef CONFIG_NET_FLOW_LIMIT
- struct sd_flow_limit __rcu *flow_limit;
-#endif
};
static inline void input_queue_head_incr(struct softnet_data *sd)
--
cgit v1.2.1
From d475c95b4bcff983ac76e8522bfd2d29bcc567d0 Mon Sep 17 00:00:00 2001
From: Matan Barak <matanb@mellanox.com>
Date: Sun, 2 Nov 2014 16:26:17 +0200
Subject: net/mlx4_core: Add retrieval of CONFIG_DEV parameters
Add code to issue CONFIG_DEV "get" firmware command.
This command is used in order to obtain certain parameters used for
supporting various RX checksumming options and vxlan UDP port.
The GET operation is allowed for VFs too.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/cmd.h | 29 +++++++++++++++++++++++++++++
include/linux/mlx4/device.h | 3 ++-
2 files changed, 31 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index ff5f5deb3dcf..64d25941b329 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -199,6 +199,33 @@ enum {
MLX4_CMD_NATIVE
};
+/*
+ * MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP -
+ * Receive checksum value is reported in CQE also for non TCP/UDP packets.
+ *
+ * MLX4_RX_CSUM_MODE_L4 -
+ * L4_CSUM bit in CQE, which indicates whether or not L4 checksum
+ * was validated correctly, is supported.
+ *
+ * MLX4_RX_CSUM_MODE_IP_OK_IP_NON_TCP_UDP -
+ * IP_OK CQE's field is supported also for non TCP/UDP IP packets.
+ *
+ * MLX4_RX_CSUM_MODE_MULTI_VLAN -
+ * Receive Checksum offload is supported for packets with more than 2 vlan headers.
+ */
+enum mlx4_rx_csum_mode {
+ MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP = 1UL << 0,
+ MLX4_RX_CSUM_MODE_L4 = 1UL << 1,
+ MLX4_RX_CSUM_MODE_IP_OK_IP_NON_TCP_UDP = 1UL << 2,
+ MLX4_RX_CSUM_MODE_MULTI_VLAN = 1UL << 3
+};
+
+struct mlx4_config_dev_params {
+ u16 vxlan_udp_dport;
+ u8 rx_csum_flags_port_1;
+ u8 rx_csum_flags_port_2;
+};
+
struct mlx4_dev;
struct mlx4_cmd_mailbox {
@@ -250,6 +277,8 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos);
int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting);
int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf);
int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state);
+int mlx4_config_dev_retrieval(struct mlx4_dev *dev,
+ struct mlx4_config_dev_params *params);
/*
* mlx4_get_slave_default_vlan -
* return true if VST ( default vlan)
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index e4c136ebe79b..5cc5eac47d1b 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -188,7 +188,8 @@ enum {
MLX4_DEV_CAP_FLAG2_CQE_STRIDE = 1LL << 12,
MLX4_DEV_CAP_FLAG2_EQE_STRIDE = 1LL << 13,
MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL = 1LL << 14,
- MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP = 1LL << 15
+ MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP = 1LL << 15,
+ MLX4_DEV_CAP_FLAG2_CONFIG_DEV = 1LL << 16
};
enum {
--
cgit v1.2.1
From 7071cf7fc435ab84df872613f613a9a055964fc1 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Sun, 2 Nov 2014 11:31:41 -0800
Subject: uapi: add missing network related headers to kbuild
The makefile for sanitizing kernel headers uses the kbuild file
to determine which files to do. Several networking related headers
were missing. Without these headers iproute2 build would break.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/Kbuild | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index b70237e8bc37..4c94f31a8c99 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -125,6 +125,7 @@ header-y += filter.h
header-y += firewire-cdev.h
header-y += firewire-constants.h
header-y += flat.h
+header-y += fou.h
header-y += fs.h
header-y += fsl_hypervisor.h
header-y += fuse.h
@@ -141,6 +142,7 @@ header-y += hid.h
header-y += hiddev.h
header-y += hidraw.h
header-y += hpet.h
+header-y += hsr_netlink.h
header-y += hyperv.h
header-y += hysdn_if.h
header-y += i2c-dev.h
@@ -251,6 +253,7 @@ header-y += mii.h
header-y += minix_fs.h
header-y += mman.h
header-y += mmtimer.h
+header-y += mpls.h
header-y += mqueue.h
header-y += mroute.h
header-y += mroute6.h
@@ -424,6 +427,7 @@ header-y += virtio_net.h
header-y += virtio_pci.h
header-y += virtio_ring.h
header-y += virtio_rng.h
+header=y += vm_sockets.h
header-y += vt.h
header-y += wait.h
header-y += wanrouter.h
--
cgit v1.2.1
From 946e51f2bf37f1656916eb75bd0742ba33983c28 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 26 Oct 2014 19:19:16 -0400
Subject: move d_rcu from overlapping d_child to overlapping d_alias
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/dcache.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index b2a2a08523bf..1c2f1b84468b 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -124,15 +124,15 @@ struct dentry {
void *d_fsdata; /* fs-specific data */
struct list_head d_lru; /* LRU list */
+ struct list_head d_child; /* child of parent list */
+ struct list_head d_subdirs; /* our children */
/*
- * d_child and d_rcu can share memory
+ * d_alias and d_rcu can share memory
*/
union {
- struct list_head d_child; /* child of parent list */
+ struct hlist_node d_alias; /* inode alias list */
struct rcu_head d_rcu;
} d_u;
- struct list_head d_subdirs; /* our children */
- struct hlist_node d_alias; /* inode alias list */
};
/*
--
cgit v1.2.1
From 56b174256b6936ec4c1ed8f3407109ac6929d3ca Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 3 Nov 2014 08:19:53 -0800
Subject: net: add rbnode to struct sk_buff
Yaogong replaces TCP out of order receive queue by an RB tree.
As netem already does a private skb->{next/prev/tstamp} union
with a 'struct rb_node', lets do this in a cleaner way.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yaogong Wang <wygivan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 6c8b6f604e76..5ad9675b6fe1 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -20,6 +20,7 @@
#include <linux/time.h>
#include <linux/bug.h>
#include <linux/cache.h>
+#include <linux/rbtree.h>
#include <linux/atomic.h>
#include <asm/types.h>
@@ -440,6 +441,7 @@ static inline u32 skb_mstamp_us_delta(const struct skb_mstamp *t1,
* @next: Next buffer in list
* @prev: Previous buffer in list
* @tstamp: Time we arrived/left
+ * @rbnode: RB tree node, alternative to next/prev for netem/tcp
* @sk: Socket we are owned by
* @dev: Device we arrived on/are leaving by
* @cb: Control buffer. Free for use by every layer. Put private vars here
@@ -504,15 +506,19 @@ static inline u32 skb_mstamp_us_delta(const struct skb_mstamp *t1,
*/
struct sk_buff {
- /* These two members must be first. */
- struct sk_buff *next;
- struct sk_buff *prev;
-
union {
- ktime_t tstamp;
- struct skb_mstamp skb_mstamp;
+ struct {
+ /* These two members must be first. */
+ struct sk_buff *next;
+ struct sk_buff *prev;
+
+ union {
+ ktime_t tstamp;
+ struct skb_mstamp skb_mstamp;
+ };
+ };
+ struct rb_node rbnode; /* used in netem & tcp stack */
};
-
struct sock *sk;
struct net_device *dev;
--
cgit v1.2.1
From 98a18b6ffc79baa69f4a0d1bae58faf2a8aef4c8 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 2 Nov 2014 06:44:54 +0100
Subject: netdevice: add ieee802154_ptr to net_device
This patch adds an ieee802154_ptr to the net_device structure.
Furthermore the 802.15.4 subsystem will introduce a nl802154 framework
which is similar like the nl80211 framework and a wpan_dev structure.
The wpan_dev structure will hold additional net_device attributes like
address options which are 802.15.4 specific. In the upcoming nl802154
implementation we will introduce a NL802154_FLAG_NEED_WPAN_DEV like
NL80211_FLAG_NEED_WDEV. For this flag an ieee802154_ptr in net_device is
needed. Additional we can access the wpan_dev attributes in upper layers
like IEEE 802.15.4 6LoWPAN easily. Current solution is a complicated
callback interface and getting these values over subif data structure
in mac802154.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/netdevice.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 74fd5d37f15a..c9bcf33efb47 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -57,6 +57,8 @@ struct device;
struct phy_device;
/* 802.11 specific */
struct wireless_dev;
+/* 802.15.4 specific */
+struct wpan_dev;
void netdev_set_default_ethtool_ops(struct net_device *dev,
const struct ethtool_ops *ops);
@@ -1572,6 +1574,7 @@ struct net_device {
struct inet6_dev __rcu *ip6_ptr;
void *ax25_ptr;
struct wireless_dev *ieee80211_ptr;
+ struct wpan_dev *ieee802154_ptr;
/*
* Cache lines mostly used on receive path (including eth_type_trans())
--
cgit v1.2.1
From 11a7e59405148c855e0a9d13588930ccec02c150 Mon Sep 17 00:00:00 2001
From: Michael Grzeschik <m.grzeschik@pengutronix.de>
Date: Mon, 13 Oct 2014 09:53:03 +0800
Subject: usb: ehci: add ehci_port_power interface
The current EHCI implementation is prepared to toggle the
PORT_POWER bit to enable or disable a USB-Port. In some
cases this port power can not be just toggled by the PORT_POWER
bit, and the gpio-regulator is needed to be toggled too.
This patch defines a port power control interface ehci_port_power for
ehci core use, it toggles PORT_POWER bit as well as calls platform
defined .port_power if it is defined.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/hcd.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index cd96a2bc3388..9cf7e3594609 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -379,6 +379,9 @@ struct hc_driver {
int (*disable_usb3_lpm_timeout)(struct usb_hcd *,
struct usb_device *, enum usb3_link_state state);
int (*find_raw_port_number)(struct usb_hcd *, int);
+ /* Call for power on/off the port if necessary */
+ int (*port_power)(struct usb_hcd *hcd, int portnum, bool enable);
+
};
static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd)
--
cgit v1.2.1
From a78186ebe516b6d7df43636603f0998803ab356a Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 17 Oct 2014 17:57:29 -0700
Subject: f2fs: use highmem for directory pages
This patch fixes to use highmem for directory pages.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
include/linux/f2fs_fs.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 860313a33a43..6d7381b41304 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -33,7 +33,8 @@
#define F2FS_META_INO(sbi) (sbi->meta_ino_num)
/* This flag is used by node and meta inodes, and by recovery */
-#define GFP_F2FS_ZERO (GFP_NOFS | __GFP_ZERO)
+#define GFP_F2FS_ZERO (GFP_NOFS | __GFP_ZERO)
+#define GFP_F2FS_HIGH_ZERO (GFP_NOFS | __GFP_ZERO | __GFP_HIGHMEM)
/*
* For further optimization on multi-head logs, on-disk layout supports maximum
--
cgit v1.2.1
From 34d67debe02b3b2b035b5bdce0fab75800f9a344 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Wed, 24 Sep 2014 18:15:19 +0800
Subject: f2fs: add infra struct and helper for inline dir
This patch defines macro/inline dentry structure, and adds some helpers for
inline dir infrastructure.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
include/linux/f2fs_fs.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 6d7381b41304..63f8303b79ba 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -171,6 +171,7 @@ struct f2fs_extent {
#define F2FS_INLINE_XATTR 0x01 /* file inline xattr flag */
#define F2FS_INLINE_DATA 0x02 /* file inline data flag */
+#define F2FS_INLINE_DENTRY 0x04 /* file inline dentry flag */
#define MAX_INLINE_DATA (sizeof(__le32) * (DEF_ADDRS_PER_INODE - \
F2FS_INLINE_XATTR_ADDRS - 1))
@@ -436,6 +437,24 @@ struct f2fs_dentry_block {
__u8 filename[NR_DENTRY_IN_BLOCK][F2FS_SLOT_LEN];
} __packed;
+/* for inline dir */
+#define NR_INLINE_DENTRY (MAX_INLINE_DATA * BITS_PER_BYTE / \
+ ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
+ BITS_PER_BYTE + 1))
+#define INLINE_DENTRY_BITMAP_SIZE ((NR_INLINE_DENTRY + \
+ BITS_PER_BYTE - 1) / BITS_PER_BYTE)
+#define INLINE_RESERVED_SIZE (MAX_INLINE_DATA - \
+ ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
+ NR_INLINE_DENTRY + INLINE_DENTRY_BITMAP_SIZE))
+
+/* inline directory entry structure */
+struct f2fs_inline_dentry {
+ __u8 dentry_bitmap[INLINE_DENTRY_BITMAP_SIZE];
+ __u8 reserved[INLINE_RESERVED_SIZE];
+ struct f2fs_dir_entry dentry[NR_INLINE_DENTRY];
+ __u8 filename[NR_INLINE_DENTRY][F2FS_SLOT_LEN];
+} __packed;
+
/* file types used in inode_info->flags */
enum {
F2FS_FT_UNKNOWN,
--
cgit v1.2.1
From 148ebf479aa207406f8208466b3e446f9cd25f4b Mon Sep 17 00:00:00 2001
From: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Date: Thu, 30 Oct 2014 14:58:55 +0900
Subject: ARM: shmobile: r8a7794: Add VIN clock to device tree
Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7794-clock.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7794-clock.h b/include/dt-bindings/clock/r8a7794-clock.h
index 9ac1043e25bc..fd7cdee6a666 100644
--- a/include/dt-bindings/clock/r8a7794-clock.h
+++ b/include/dt-bindings/clock/r8a7794-clock.h
@@ -61,6 +61,8 @@
#define R8A7794_CLK_SCIF0 21
/* MSTP8 */
+#define R8A7794_CLK_VIN1 10
+#define R8A7794_CLK_VIN0 11
#define R8A7794_CLK_ETHER 13
/* MSTP9 */
--
cgit v1.2.1
From c3377c2da6e594504c900d5ef72374c109e4ca99 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 21 Oct 2014 07:53:02 -0700
Subject: rcu: Remove "cpu" argument to rcu_check_callbacks()
The "cpu" argument was kept around on the off-chance that RCU might
offload scheduler-clock interrupts. However, this offload approach
has been replaced by NO_HZ_FULL, which offloads -all- RCU processing
from qualifying CPUs. It is therefore time to remove the "cpu" argument
to rcu_check_callbacks(), which this commit does.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
---
include/linux/rcupdate.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a4a819ffb2d1..b4ad275d90d0 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -260,7 +260,7 @@ static inline int rcu_preempt_depth(void)
void rcu_init(void);
void rcu_sched_qs(void);
void rcu_bh_qs(void);
-void rcu_check_callbacks(int cpu, int user);
+void rcu_check_callbacks(int user);
struct notifier_block;
void rcu_idle_enter(void);
void rcu_idle_exit(void);
--
cgit v1.2.1
From 38200cf24702e5d79ce6c8f4c62036c41845c62d Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 21 Oct 2014 12:50:04 -0700
Subject: rcu: Remove "cpu" argument to rcu_note_context_switch()
The "cpu" argument to rcu_note_context_switch() is always the current
CPU, so drop it. This in turn allows the "cpu" argument to
rcu_preempt_note_context_switch() to be removed, which allows the sole
use of "cpu" in both functions to be replaced with a this_cpu_ptr().
Again, the anticipated cross-CPU uses of these functions has been
replaced by NO_HZ_FULL.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
---
include/linux/rcutiny.h | 2 +-
include/linux/rcutree.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 38cc5b1e252d..0e5366200154 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -78,7 +78,7 @@ static inline void kfree_call_rcu(struct rcu_head *head,
call_rcu(head, func);
}
-static inline void rcu_note_context_switch(int cpu)
+static inline void rcu_note_context_switch(void)
{
rcu_sched_qs();
}
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 3e2f5d432743..7b5484db1857 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -30,7 +30,7 @@
#ifndef __LINUX_RCUTREE_H
#define __LINUX_RCUTREE_H
-void rcu_note_context_switch(int cpu);
+void rcu_note_context_switch(void);
#ifndef CONFIG_RCU_NOCB_CPU_ALL
int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies);
#endif /* #ifndef CONFIG_RCU_NOCB_CPU_ALL */
@@ -43,7 +43,7 @@ void rcu_cpu_stall_reset(void);
*/
static inline void rcu_virt_note_context_switch(int cpu)
{
- rcu_note_context_switch(cpu);
+ rcu_note_context_switch();
}
void synchronize_rcu_bh(void);
--
cgit v1.2.1
From aa6da5140b784ece799f670bf532096f67aa7785 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 21 Oct 2014 13:23:08 -0700
Subject: rcu: Remove "cpu" argument to rcu_needs_cpu()
The "cpu" argument to rcu_needs_cpu() is always the current CPU, so drop
it. This in turn allows the "cpu" argument to rcu_cpu_has_callbacks()
to be removed, which allows the uses of "cpu" in both functions to be
replaced with a this_cpu_ptr(). Again, the anticipated cross-CPU uses
of these functions has been replaced by NO_HZ_FULL.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
---
include/linux/rcupdate.h | 2 +-
include/linux/rcutree.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index b4ad275d90d0..4eb810832b19 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -1103,7 +1103,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
__kfree_rcu(&((ptr)->rcu_head), offsetof(typeof(*(ptr)), rcu_head))
#if defined(CONFIG_TINY_RCU) || defined(CONFIG_RCU_NOCB_CPU_ALL)
-static inline int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies)
+static inline int rcu_needs_cpu(unsigned long *delta_jiffies)
{
*delta_jiffies = ULONG_MAX;
return 0;
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 7b5484db1857..52953790dcca 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -32,7 +32,7 @@
void rcu_note_context_switch(void);
#ifndef CONFIG_RCU_NOCB_CPU_ALL
-int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies);
+int rcu_needs_cpu(unsigned long *delta_jiffies);
#endif /* #ifndef CONFIG_RCU_NOCB_CPU_ALL */
void rcu_cpu_stall_reset(void);
--
cgit v1.2.1
From c72c553249bb73705f594e292a8f8750027fbcbe Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Mon, 27 Oct 2014 17:40:44 +0100
Subject: ARM: imx: clk-vf610: define PLL's clock tree
So far, the required PLL's (PLL1/PLL2/PLL5) have been initialized
by boot loader and the kernel code defined fixed rates according
to those default configurations. Beginning with the USB PLL7 the
code started to initialize the PLL's itself (using imx_clk_pllv3).
However, since commit dc4805c2e78ba5a22ea1632f3e3e4ee601a1743b
(ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3 driver)
imx_clk_pllv3 no longer takes care of the ENABLE and BYPASS bits,
hence the USB PLL were not configured correctly anymore.
This patch not only fixes those USB PLL's, but also makes use of
the imx_clk_pllv3 for all PLL's and alignes the code with the PLL
support of the i.MX6 series.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
include/dt-bindings/clock/vf610-clock.h | 39 ++++++++++++++++++++++++++-------
1 file changed, 31 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/vf610-clock.h b/include/dt-bindings/clock/vf610-clock.h
index d6b56b21539b..801c0ac50c47 100644
--- a/include/dt-bindings/clock/vf610-clock.h
+++ b/include/dt-bindings/clock/vf610-clock.h
@@ -21,24 +21,24 @@
#define VF610_CLK_FASK_CLK_SEL 8
#define VF610_CLK_AUDIO_EXT 9
#define VF610_CLK_ENET_EXT 10
-#define VF610_CLK_PLL1_MAIN 11
+#define VF610_CLK_PLL1_SYS 11
#define VF610_CLK_PLL1_PFD1 12
#define VF610_CLK_PLL1_PFD2 13
#define VF610_CLK_PLL1_PFD3 14
#define VF610_CLK_PLL1_PFD4 15
-#define VF610_CLK_PLL2_MAIN 16
+#define VF610_CLK_PLL2_BUS 16
#define VF610_CLK_PLL2_PFD1 17
#define VF610_CLK_PLL2_PFD2 18
#define VF610_CLK_PLL2_PFD3 19
#define VF610_CLK_PLL2_PFD4 20
-#define VF610_CLK_PLL3_MAIN 21
+#define VF610_CLK_PLL3_USB_OTG 21
#define VF610_CLK_PLL3_PFD1 22
#define VF610_CLK_PLL3_PFD2 23
#define VF610_CLK_PLL3_PFD3 24
#define VF610_CLK_PLL3_PFD4 25
-#define VF610_CLK_PLL4_MAIN 26
-#define VF610_CLK_PLL5_MAIN 27
-#define VF610_CLK_PLL6_MAIN 28
+#define VF610_CLK_PLL4_AUDIO 26
+#define VF610_CLK_PLL5_ENET 27
+#define VF610_CLK_PLL6_VIDEO 28
#define VF610_CLK_PLL3_MAIN_DIV 29
#define VF610_CLK_PLL4_MAIN_DIV 30
#define VF610_CLK_PLL6_MAIN_DIV 31
@@ -166,9 +166,32 @@
#define VF610_CLK_DMAMUX3 153
#define VF610_CLK_FLEXCAN0_EN 154
#define VF610_CLK_FLEXCAN1_EN 155
-#define VF610_CLK_PLL7_MAIN 156
+#define VF610_CLK_PLL7_USB_HOST 156
#define VF610_CLK_USBPHY0 157
#define VF610_CLK_USBPHY1 158
-#define VF610_CLK_END 159
+#define VF610_CLK_LVDS1_IN 159
+#define VF610_CLK_ANACLK1 160
+#define VF610_CLK_PLL1_BYPASS_SRC 161
+#define VF610_CLK_PLL2_BYPASS_SRC 162
+#define VF610_CLK_PLL3_BYPASS_SRC 163
+#define VF610_CLK_PLL4_BYPASS_SRC 164
+#define VF610_CLK_PLL5_BYPASS_SRC 165
+#define VF610_CLK_PLL6_BYPASS_SRC 166
+#define VF610_CLK_PLL7_BYPASS_SRC 167
+#define VF610_CLK_PLL1 168
+#define VF610_CLK_PLL2 169
+#define VF610_CLK_PLL3 170
+#define VF610_CLK_PLL4 171
+#define VF610_CLK_PLL5 172
+#define VF610_CLK_PLL6 173
+#define VF610_CLK_PLL7 174
+#define VF610_PLL1_BYPASS 175
+#define VF610_PLL2_BYPASS 176
+#define VF610_PLL3_BYPASS 177
+#define VF610_PLL4_BYPASS 178
+#define VF610_PLL5_BYPASS 179
+#define VF610_PLL6_BYPASS 180
+#define VF610_PLL7_BYPASS 181
+#define VF610_CLK_END 182
#endif /* __DT_BINDINGS_CLOCK_VF610_H */
--
cgit v1.2.1
From 36df04bc5273a046f53b5e359febc1225f85aa7b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 29 Oct 2014 12:21:57 +0100
Subject: sched/wait: Reimplement wait_event_freezable()
Provide better implementations of wait_event_freezable() APIs.
The problem is with freezer_do_not_count(), it hides the thread from
the freezer, even though this thread might not actually freeze/sleep
at all.
Cc: oleg@redhat.com
Cc: Rafael Wysocki <rjw@rjwysocki.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: linux-pm@vger.kernel.org
Link: http://lkml.kernel.org/n/tip-d86fz1jmso9wjxa8jfpinp8o@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/freezer.h | 38 ---------------------------------
include/linux/wait.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 57 insertions(+), 38 deletions(-)
(limited to 'include')
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index 7fd81b8c4897..e203665c0faa 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -265,35 +265,6 @@ static inline int freezable_schedule_hrtimeout_range(ktime_t *expires,
__retval; \
})
-#define wait_event_freezable(wq, condition) \
-({ \
- int __retval; \
- freezer_do_not_count(); \
- __retval = wait_event_interruptible(wq, (condition)); \
- freezer_count(); \
- __retval; \
-})
-
-#define wait_event_freezable_timeout(wq, condition, timeout) \
-({ \
- long __retval = timeout; \
- freezer_do_not_count(); \
- __retval = wait_event_interruptible_timeout(wq, (condition), \
- __retval); \
- freezer_count(); \
- __retval; \
-})
-
-#define wait_event_freezable_exclusive(wq, condition) \
-({ \
- int __retval; \
- freezer_do_not_count(); \
- __retval = wait_event_interruptible_exclusive(wq, condition); \
- freezer_count(); \
- __retval; \
-})
-
-
#else /* !CONFIG_FREEZER */
static inline bool frozen(struct task_struct *p) { return false; }
static inline bool freezing(struct task_struct *p) { return false; }
@@ -331,15 +302,6 @@ static inline void set_freezable(void) {}
#define freezable_schedule_hrtimeout_range(expires, delta, mode) \
schedule_hrtimeout_range(expires, delta, mode)
-#define wait_event_freezable(wq, condition) \
- wait_event_interruptible(wq, condition)
-
-#define wait_event_freezable_timeout(wq, condition, timeout) \
- wait_event_interruptible_timeout(wq, condition, timeout)
-
-#define wait_event_freezable_exclusive(wq, condition) \
- wait_event_interruptible_exclusive(wq, condition)
-
#define wait_event_freezekillable(wq, condition) \
wait_event_killable(wq, condition)
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 0421775e0b9f..2232ed16635a 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -267,6 +267,31 @@ do { \
__wait_event(wq, condition); \
} while (0)
+#define __wait_event_freezable(wq, condition) \
+ ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0, \
+ schedule(); try_to_freeze())
+
+/**
+ * wait_event - sleep (or freeze) until a condition gets true
+ * @wq: the waitqueue to wait on
+ * @condition: a C expression for the event to wait for
+ *
+ * The process is put to sleep (TASK_INTERRUPTIBLE -- so as not to contribute
+ * to system load) until the @condition evaluates to true. The
+ * @condition is checked each time the waitqueue @wq is woken up.
+ *
+ * wake_up() has to be called after changing any variable that could
+ * change the result of the wait condition.
+ */
+#define wait_event_freezable(wq, condition) \
+({ \
+ int __ret = 0; \
+ might_sleep(); \
+ if (!(condition)) \
+ __ret = __wait_event_freezable(wq, condition); \
+ __ret; \
+})
+
#define __wait_event_timeout(wq, condition, timeout) \
___wait_event(wq, ___wait_cond_timeout(condition), \
TASK_UNINTERRUPTIBLE, 0, timeout, \
@@ -300,6 +325,24 @@ do { \
__ret; \
})
+#define __wait_event_freezable_timeout(wq, condition, timeout) \
+ ___wait_event(wq, ___wait_cond_timeout(condition), \
+ TASK_INTERRUPTIBLE, 0, timeout, \
+ __ret = schedule_timeout(__ret); try_to_freeze())
+
+/*
+ * like wait_event_timeout() -- except it uses TASK_INTERRUPTIBLE to avoid
+ * increasing load and is freezable.
+ */
+#define wait_event_freezable_timeout(wq, condition, timeout) \
+({ \
+ long __ret = timeout; \
+ might_sleep(); \
+ if (!___wait_cond_timeout(condition)) \
+ __ret = __wait_event_freezable_timeout(wq, condition, timeout); \
+ __ret; \
+})
+
#define __wait_event_cmd(wq, condition, cmd1, cmd2) \
(void)___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, 0, \
cmd1; schedule(); cmd2)
@@ -480,6 +523,20 @@ do { \
})
+#define __wait_event_freezable_exclusive(wq, condition) \
+ ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 1, 0, \
+ schedule(); try_to_freeze())
+
+#define wait_event_freezable_exclusive(wq, condition) \
+({ \
+ int __ret = 0; \
+ might_sleep(); \
+ if (!(condition)) \
+ __ret = __wait_event_freezable_exclusive(wq, condition);\
+ __ret; \
+})
+
+
#define __wait_event_interruptible_locked(wq, condition, exclusive, irq) \
({ \
int __ret = 0; \
--
cgit v1.2.1
From 5d4d56582467f3c08dfedd0d995ce2092f384ecc Mon Sep 17 00:00:00 2001
From: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Date: Wed, 29 Oct 2014 14:48:13 +0100
Subject: sched/wait: Remove wait_event_freezekillable()
There is no user.. make it go away.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: oleg@redhat.com
Cc: Rafael Wysocki <rjw@rjwysocki.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/freezer.h | 12 ------------
1 file changed, 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index e203665c0faa..6b7fd9cf5ea2 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -246,15 +246,6 @@ static inline int freezable_schedule_hrtimeout_range(ktime_t *expires,
* defined in <linux/wait.h>
*/
-#define wait_event_freezekillable(wq, condition) \
-({ \
- int __retval; \
- freezer_do_not_count(); \
- __retval = wait_event_killable(wq, (condition)); \
- freezer_count(); \
- __retval; \
-})
-
/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */
#define wait_event_freezekillable_unsafe(wq, condition) \
({ \
@@ -302,9 +293,6 @@ static inline void set_freezable(void) {}
#define freezable_schedule_hrtimeout_range(expires, delta, mode) \
schedule_hrtimeout_range(expires, delta, mode)
-#define wait_event_freezekillable(wq, condition) \
- wait_event_killable(wq, condition)
-
#define wait_event_freezekillable_unsafe(wq, condition) \
wait_event_killable(wq, condition)
--
cgit v1.2.1
From 44dba3d5d6a10685fb15bd1954e62016334825e0 Mon Sep 17 00:00:00 2001
From: Iulia Manda <iulia.manda21@gmail.com>
Date: Fri, 31 Oct 2014 02:13:31 +0200
Subject: sched: Refactor task_struct to use numa_faults instead of numa_*
pointers
This patch simplifies task_struct by removing the four numa_* pointers
in the same array and replacing them with the array pointer. By doing this,
on x86_64, the size of task_struct is reduced by 3 ulong pointers (24 bytes on
x86_64).
A new parameter is added to the task_faults_idx function so that it can return
an index to the correct offset, corresponding with the old precalculated
pointers.
All of the code in sched/ that depended on task_faults_idx and numa_* was
changed in order to match the new logic.
Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: mgorman@suse.de
Cc: dave@stgolabs.net
Cc: riel@redhat.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20141031001331.GA30662@winterfell
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/sched.h | 31 +++++++++++++------------------
1 file changed, 13 insertions(+), 18 deletions(-)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4400ddc2fe73..bd7c14ba86c4 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1597,27 +1597,22 @@ struct task_struct {
struct numa_group *numa_group;
/*
- * Exponential decaying average of faults on a per-node basis.
- * Scheduling placement decisions are made based on the these counts.
- * The values remain static for the duration of a PTE scan
+ * numa_faults is an array split into four regions:
+ * faults_memory, faults_cpu, faults_memory_buffer, faults_cpu_buffer
+ * in this precise order.
+ *
+ * faults_memory: Exponential decaying average of faults on a per-node
+ * basis. Scheduling placement decisions are made based on these
+ * counts. The values remain static for the duration of a PTE scan.
+ * faults_cpu: Track the nodes the process was running on when a NUMA
+ * hinting fault was incurred.
+ * faults_memory_buffer and faults_cpu_buffer: Record faults per node
+ * during the current scan window. When the scan completes, the counts
+ * in faults_memory and faults_cpu decay and these values are copied.
*/
- unsigned long *numa_faults_memory;
+ unsigned long *numa_faults;
unsigned long total_numa_faults;
- /*
- * numa_faults_buffer records faults per node during the current
- * scan window. When the scan completes, the counts in
- * numa_faults_memory decay and these values are copied.
- */
- unsigned long *numa_faults_buffer_memory;
-
- /*
- * Track the nodes the process was running on when a NUMA hinting
- * fault was incurred.
- */
- unsigned long *numa_faults_cpu;
- unsigned long *numa_faults_buffer_cpu;
-
/*
* numa_faults_locality tracks if faults recorded during the last
* scan window were remote/local. The task scan period is adapted
--
cgit v1.2.1
From 0563921abf01a7a38b5f670c3de05dc0b0b8617d Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Mon, 3 Nov 2014 20:06:47 +0200
Subject: ieee80211: add "max length of AMPDU" enum for VHT
Maximum length of AMPDU that an STA can receive in VHT.
length = 2 ^ (13 + max_ampdu_length_exp) - 1.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 5fab17b382b5..f65b5446d983 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1274,7 +1274,7 @@ struct ieee80211_ht_cap {
#define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
/*
- * Maximum length of AMPDU that the STA can receive.
+ * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
* Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
*/
enum ieee80211_max_ampdu_length_exp {
@@ -1284,6 +1284,21 @@ enum ieee80211_max_ampdu_length_exp {
IEEE80211_HT_MAX_AMPDU_64K = 3
};
+/*
+ * Maximum length of AMPDU that the STA can receive in VHT.
+ * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
+ */
+enum ieee80211_vht_max_ampdu_length_exp {
+ IEEE80211_VHT_MAX_AMPDU_8K = 0,
+ IEEE80211_VHT_MAX_AMPDU_16K = 1,
+ IEEE80211_VHT_MAX_AMPDU_32K = 2,
+ IEEE80211_VHT_MAX_AMPDU_64K = 3,
+ IEEE80211_VHT_MAX_AMPDU_128K = 4,
+ IEEE80211_VHT_MAX_AMPDU_256K = 5,
+ IEEE80211_VHT_MAX_AMPDU_512K = 6,
+ IEEE80211_VHT_MAX_AMPDU_1024K = 7
+};
+
#define IEEE80211_HT_MAX_AMPDU_FACTOR 13
/* Minimum MPDU start spacing */
--
cgit v1.2.1
From 5b3dc42b1b0db0264bbbe4ae44c15ab97bfd1e93 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 26 Oct 2014 00:32:53 +0200
Subject: mac80211: add support for driver tx power reporting
The configured tx power is often limited by hardware capabilities,
channel settings, antenna configuration, etc.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
[fix tracing compilation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 1614b2fc3bf6..03edbf6f6230 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2857,6 +2857,9 @@ enum ieee80211_roc_type {
* @get_expected_throughput: extract the expected throughput towards the
* specified station. The returned value is expressed in Kbps. It returns 0
* if the RC algorithm does not have proper data to provide.
+ *
+ * @get_txpower: get current maximum tx power (in dBm) based on configuration
+ * and hardware limits.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,
@@ -3065,6 +3068,8 @@ struct ieee80211_ops {
int (*join_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
void (*leave_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
u32 (*get_expected_throughput)(struct ieee80211_sta *sta);
+ int (*get_txpower)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ int *dbm);
};
/**
--
cgit v1.2.1
From a87fa1d81a9fb5e9adca9820e16008c40ad09f33 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Mon, 3 Nov 2014 15:15:35 +0000
Subject: of: Fix overflow bug in string property parsing functions
The string property read helpers will run off the end of the buffer if
it is handed a malformed string property. Rework the parsers to make
sure that doesn't happen. At the same time add new test cases to make
sure the functions behave themselves.
The original implementations of of_property_read_string_index() and
of_property_count_strings() both open-coded the same block of parsing
code, each with it's own subtly different bugs. The fix here merges
functions into a single helper and makes the original functions static
inline wrappers around the helper.
One non-bugfix aspect of this patch is the addition of a new wrapper,
of_property_read_string_array(). The new wrapper is needed by the
device_properties feature that Rafael is working on and planning to
merge for v3.19. The implementation is identical both with and without
the new static inline wrapper, so it just got left in to reduce the
churn on the header file.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Darren Hart <darren.hart@intel.com>
Cc: <stable@vger.kernel.org> # v3.3+: Drop selftest hunks that don't apply
---
include/linux/of.h | 84 +++++++++++++++++++++++++++++++++++++++++++++---------
1 file changed, 70 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 6545e7aec7bb..29f0adc5f3e4 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -267,14 +267,12 @@ extern int of_property_read_u64(const struct device_node *np,
extern int of_property_read_string(struct device_node *np,
const char *propname,
const char **out_string);
-extern int of_property_read_string_index(struct device_node *np,
- const char *propname,
- int index, const char **output);
extern int of_property_match_string(struct device_node *np,
const char *propname,
const char *string);
-extern int of_property_count_strings(struct device_node *np,
- const char *propname);
+extern int of_property_read_string_helper(struct device_node *np,
+ const char *propname,
+ const char **out_strs, size_t sz, int index);
extern int of_device_is_compatible(const struct device_node *device,
const char *);
extern int of_device_is_available(const struct device_node *device);
@@ -486,15 +484,9 @@ static inline int of_property_read_string(struct device_node *np,
return -ENOSYS;
}
-static inline int of_property_read_string_index(struct device_node *np,
- const char *propname, int index,
- const char **out_string)
-{
- return -ENOSYS;
-}
-
-static inline int of_property_count_strings(struct device_node *np,
- const char *propname)
+static inline int of_property_read_string_helper(struct device_node *np,
+ const char *propname,
+ const char **out_strs, size_t sz, int index)
{
return -ENOSYS;
}
@@ -667,6 +659,70 @@ static inline int of_property_count_u64_elems(const struct device_node *np,
return of_property_count_elems_of_size(np, propname, sizeof(u64));
}
+/**
+ * of_property_read_string_array() - Read an array of strings from a multiple
+ * strings property.
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ * @out_strs: output array of string pointers.
+ * @sz: number of array elements to read.
+ *
+ * Search for a property in a device tree node and retrieve a list of
+ * terminated string values (pointer to data, not a copy) in that property.
+ *
+ * If @out_strs is NULL, the number of strings in the property is returned.
+ */
+static inline int of_property_read_string_array(struct device_node *np,
+ const char *propname, const char **out_strs,
+ size_t sz)
+{
+ return of_property_read_string_helper(np, propname, out_strs, sz, 0);
+}
+
+/**
+ * of_property_count_strings() - Find and return the number of strings from a
+ * multiple strings property.
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ *
+ * Search for a property in a device tree node and retrieve the number of null
+ * terminated string contain in it. Returns the number of strings on
+ * success, -EINVAL if the property does not exist, -ENODATA if property
+ * does not have a value, and -EILSEQ if the string is not null-terminated
+ * within the length of the property data.
+ */
+static inline int of_property_count_strings(struct device_node *np,
+ const char *propname)
+{
+ return of_property_read_string_helper(np, propname, NULL, 0, 0);
+}
+
+/**
+ * of_property_read_string_index() - Find and read a string from a multiple
+ * strings property.
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ * @index: index of the string in the list of strings
+ * @out_string: pointer to null terminated return string, modified only if
+ * return value is 0.
+ *
+ * Search for a property in a device tree node and retrieve a null
+ * terminated string value (pointer to data, not a copy) in the list of strings
+ * contained in that property.
+ * Returns 0 on success, -EINVAL if the property does not exist, -ENODATA if
+ * property does not have a value, and -EILSEQ if the string is not
+ * null-terminated within the length of the property data.
+ *
+ * The out_string pointer is modified only if a valid string can be decoded.
+ */
+static inline int of_property_read_string_index(struct device_node *np,
+ const char *propname,
+ int index, const char **output)
+{
+ int rc = of_property_read_string_helper(np, propname, output, 1, index);
+ return rc < 0 ? rc : 0;
+}
+
/**
* of_property_read_bool - Findfrom a property
* @np: device node from which the property value is to be read.
--
cgit v1.2.1
From 313665b983fe30af9d0eb274f7e03276e05a1bbf Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 4 Nov 2014 11:30:58 +0100
Subject: ASoC: Remove card field from snd_soc_dai struct
The card field of the snd_soc_dai field is very rarely used. We can use
dai->component->card instead and remove the card field from the snd_soc_dai
struct.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dai.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 45d0fa10ab9e..373d1775ecba 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -275,8 +275,6 @@ struct snd_soc_dai {
unsigned int tx_mask;
unsigned int rx_mask;
- struct snd_soc_card *card;
-
struct list_head list;
};
--
cgit v1.2.1
From 6e0bd6c35b021dc73a81ebd1ef79761233c48b50 Mon Sep 17 00:00:00 2001
From: Rostislav Lisovy <lisovy@gmail.com>
Date: Mon, 3 Nov 2014 10:33:18 +0100
Subject: cfg80211: 802.11p OCB mode handling
This patch adds new iface type (NL80211_IFTYPE_OCB) representing
the OCB (Outside the Context of a BSS) mode.
When establishing a connection to the network a cfg80211_join_ocb
function is called (particular nl80211_command is added as well).
A mandatory parameters during the ocb_join operation are 'center
frequency' and 'channel width (5/10 MHz)'.
Changes done in mac80211 are minimal possible required to avoid
many warnings (warning: enumeration value 'NL80211_IFTYPE_OCB'
not handled in switch) during compilation. Full functionality
(where needed) is added in the following patch.
Signed-off-by: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 19 +++++++++++++++++++
include/uapi/linux/nl80211.h | 11 +++++++++++
2 files changed, 30 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f67948e18600..5c3acd07acd9 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1358,6 +1358,16 @@ struct mesh_setup {
u32 basic_rates;
};
+/**
+ * struct ocb_setup - 802.11p OCB mode setup configuration
+ * @chandef: defines the channel to use
+ *
+ * These parameters are fixed when connecting to the network
+ */
+struct ocb_setup {
+ struct cfg80211_chan_def chandef;
+};
+
/**
* struct ieee80211_txq_params - TX queue parameters
* @ac: AC identifier
@@ -2352,6 +2362,11 @@ struct cfg80211_qos_map {
* with the peer followed by immediate teardown when the addition is later
* rejected)
* @del_tx_ts: remove an existing TX TS
+ *
+ * @join_ocb: join the OCB network with the specified parameters
+ * (invoked with the wireless_dev mutex held)
+ * @leave_ocb: leave the current OCB network
+ * (invoked with the wireless_dev mutex held)
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -2433,6 +2448,10 @@ struct cfg80211_ops {
const struct mesh_setup *setup);
int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);
+ int (*join_ocb)(struct wiphy *wiphy, struct net_device *dev,
+ struct ocb_setup *setup);
+ int (*leave_ocb)(struct wiphy *wiphy, struct net_device *dev);
+
int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
struct bss_parameters *params);
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index f7daae59248e..9b3025e4377a 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -746,6 +746,11 @@
* destination %NL80211_ATTR_MAC on the interface identified by
* %NL80211_ATTR_IFINDEX.
*
+ * @NL80211_CMD_JOIN_OCB: Join the OCB network. The center frequency and
+ * bandwidth of a channel must be given.
+ * @NL80211_CMD_LEAVE_OCB: Leave the OCB network -- no special arguments, the
+ * network is determined by the network interface.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -922,6 +927,9 @@ enum nl80211_commands {
NL80211_CMD_GET_MPP,
+ NL80211_CMD_JOIN_OCB,
+ NL80211_CMD_LEAVE_OCB,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -2074,6 +2082,8 @@ enum nl80211_attrs {
* and therefore can't be created in the normal ways, use the
* %NL80211_CMD_START_P2P_DEVICE and %NL80211_CMD_STOP_P2P_DEVICE
* commands to create and destroy one
+ * @NL80211_IF_TYPE_OCB: Outside Context of a BSS
+ * This mode corresponds to the MIB variable dot11OCBActivated=true
* @NL80211_IFTYPE_MAX: highest interface type number currently defined
* @NUM_NL80211_IFTYPES: number of defined interface types
*
@@ -2093,6 +2103,7 @@ enum nl80211_iftype {
NL80211_IFTYPE_P2P_CLIENT,
NL80211_IFTYPE_P2P_GO,
NL80211_IFTYPE_P2P_DEVICE,
+ NL80211_IFTYPE_OCB,
/* keep last */
NUM_NL80211_IFTYPES,
--
cgit v1.2.1
From 239281f803e2efdb77d906ef296086b6917e5d71 Mon Sep 17 00:00:00 2001
From: Rostislav Lisovy <lisovy@gmail.com>
Date: Mon, 3 Nov 2014 10:33:19 +0100
Subject: mac80211: 802.11p OCB mode support
This patch adds 802.11p OCB (Outside the Context of a BSS) mode
support.
When communicating in OCB mode a mandatory wildcard BSSID
(48 '1' bits) is used.
The EDCA parameters handling function was changed to support
802.11p specific values.
The insertion of a newly discovered STAs is done in the similar way
as in the IBSS mode -- through the deferred insertion.
The OCB mode uses a periodic 'housekeeping task' for expiration of
disconnected STAs (in the similar manner as in the MESH mode).
New Kconfig option for verbose OCB debugging outputs is added.
Signed-off-by: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 03edbf6f6230..db54635d65c5 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -263,6 +263,7 @@ struct ieee80211_vif_chanctx_switch {
* @BSS_CHANGED_BANDWIDTH: The bandwidth used by this interface changed,
* note that this is only called when it changes after the channel
* context had been assigned.
+ * @BSS_CHANGED_OCB: OCB join status changed
*/
enum ieee80211_bss_change {
BSS_CHANGED_ASSOC = 1<<0,
@@ -287,6 +288,7 @@ enum ieee80211_bss_change {
BSS_CHANGED_P2P_PS = 1<<19,
BSS_CHANGED_BEACON_INFO = 1<<20,
BSS_CHANGED_BANDWIDTH = 1<<21,
+ BSS_CHANGED_OCB = 1<<22,
/* when adding here, make sure to change ieee80211_reconfig */
};
--
cgit v1.2.1
From cf2c92d840c1424bcb3bb501147c79c9b067ad77 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 4 Nov 2014 11:43:54 +0200
Subject: mac80211: replace restart_complete() with reconfig_complete()
Drivers might want to know also when mac80211 has
completed reconfiguring after resume (e.g. in order
to know when frames can be passed to mac80211).
Rename restart_complete() to a more-generic reconfig_complete(),
and add a new enum to indicate the reconfiguration type.
Update the current users with the new prototype.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 29 +++++++++++++++++++++++------
1 file changed, 23 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index db54635d65c5..5f203a6a5e7e 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2388,6 +2388,22 @@ enum ieee80211_roc_type {
IEEE80211_ROC_TYPE_MGMT_TX,
};
+/**
+ * enum ieee80211_reconfig_complete_type - reconfig type
+ *
+ * This enum is used by the reconfig_complete() callback to indicate what
+ * reconfiguration type was completed.
+ *
+ * @IEEE80211_RECONFIG_TYPE_RESTART: hw restart type
+ * (also due to resume() callback returning 1)
+ * @IEEE80211_RECONFIG_TYPE_SUSPEND: suspend type (regardless
+ * of wowlan configuration)
+ */
+enum ieee80211_reconfig_type {
+ IEEE80211_RECONFIG_TYPE_RESTART,
+ IEEE80211_RECONFIG_TYPE_SUSPEND,
+};
+
/**
* struct ieee80211_ops - callbacks from mac80211 to the driver
*
@@ -2823,11 +2839,11 @@ enum ieee80211_roc_type {
* disabled/enabled via @bss_info_changed.
* @stop_ap: Stop operation on the AP interface.
*
- * @restart_complete: Called after a call to ieee80211_restart_hw(), when the
- * reconfiguration has completed. This can help the driver implement the
- * reconfiguration step. Also called when reconfiguring because the
- * driver's resume function returned 1, as this is just like an "inline"
- * hardware restart. This callback may sleep.
+ * @reconfig_complete: Called after a call to ieee80211_restart_hw() and
+ * during resume, when the reconfiguration has completed.
+ * This can help the driver implement the reconfiguration step (and
+ * indicate mac80211 is ready to receive frames).
+ * This callback may sleep.
*
* @ipv6_addr_change: IPv6 address assignment on the given interface changed.
* Currently, this is only called for managed or P2P client interfaces.
@@ -3050,7 +3066,8 @@ struct ieee80211_ops {
int n_vifs,
enum ieee80211_chanctx_switch_mode mode);
- void (*restart_complete)(struct ieee80211_hw *hw);
+ void (*reconfig_complete)(struct ieee80211_hw *hw,
+ enum ieee80211_reconfig_type reconfig_type);
#if IS_ENABLED(CONFIG_IPV6)
void (*ipv6_addr_change)(struct ieee80211_hw *hw,
--
cgit v1.2.1
From 2b30d411dbc6eddfb5b4f9afd5a2c57b6f4dd96c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 4 Nov 2014 14:02:40 +0100
Subject: ALSA: pcm: Add xrun_injection proc entry
This patch adds a new proc entry for PCM substreams to inject an
XRUN. When a PCM substream is running and any value is written to its
xrun_injection proc file, the driver triggers XRUN. This is a useful
feature for debugging XRUN and error handling code paths.
Note that this entry is enabled only when CONFIG_SND_PCM_XRUN_DEBUG is
set.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 29eb09ef2969..0b8daeed0a33 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -416,7 +416,10 @@ struct snd_pcm_substream {
struct snd_info_entry *proc_status_entry;
struct snd_info_entry *proc_prealloc_entry;
struct snd_info_entry *proc_prealloc_max_entry;
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+ struct snd_info_entry *proc_xrun_injection_entry;
#endif
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
/* misc flags */
unsigned int hw_opened: 1;
};
--
cgit v1.2.1
From e7a00e4210e4cc980e3ba67ec7301af54061d14b Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@kernel.org>
Date: Sun, 6 Apr 2014 12:52:11 +0200
Subject: of: introduce of_property_read_s32
Introduce signed 32bit integer of_property_read method.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 29f0adc5f3e4..30912939a610 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -760,6 +760,13 @@ static inline int of_property_read_u32(const struct device_node *np,
return of_property_read_u32_array(np, propname, out_value, 1);
}
+static inline int of_property_read_s32(const struct device_node *np,
+ const char *propname,
+ s32 *out_value)
+{
+ return of_property_read_u32(np, propname, (u32*) out_value);
+}
+
#define of_property_for_each_u32(np, propname, prop, p, u) \
for (prop = of_find_property(np, propname, NULL), \
p = of_prop_next_u32(prop, NULL, &u); \
--
cgit v1.2.1
From 5063e25a302e6a83f6590d9a06bd5f6400b17430 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Fri, 3 Oct 2014 16:28:27 +0100
Subject: of: Eliminate of_allnodes list
The device tree structure is composed of two lists; the 'allnodes' list
which is a singly linked list containing every node in the tree, and the
child->parent structure where each parent node has a singly linked list
of children. All of the data in the allnodes list can be easily
reproduced with the parent-child lists, so of_allnodes is actually
unnecessary. Remove it entirely which saves a bit of memory and
simplifies the data structure quite a lot.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Gaurav Minocha <gaurav.minocha.os@gmail.com>
Cc: Pantelis Antoniou <pantelis@pantelis.antoniou@konsulko.com>
---
include/linux/of.h | 11 ++++++-----
include/linux/of_pdt.h | 3 +--
2 files changed, 7 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 30912939a610..f54da3b699a8 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -56,7 +56,6 @@ struct device_node {
struct device_node *child;
struct device_node *sibling;
struct device_node *next; /* next device of same type */
- struct device_node *allnext; /* next in list of all nodes */
struct kobject kobj;
unsigned long _flags;
void *data;
@@ -108,7 +107,7 @@ static inline void of_node_put(struct device_node *node) { }
#ifdef CONFIG_OF
/* Pointer for first entry in chain of all nodes. */
-extern struct device_node *of_allnodes;
+extern struct device_node *of_root;
extern struct device_node *of_chosen;
extern struct device_node *of_aliases;
extern struct device_node *of_stdout;
@@ -116,7 +115,7 @@ extern raw_spinlock_t devtree_lock;
static inline bool of_have_populated_dt(void)
{
- return of_allnodes != NULL;
+ return of_root != NULL;
}
static inline bool of_node_is_root(const struct device_node *node)
@@ -160,6 +159,7 @@ static inline void of_property_clear_flag(struct property *p, unsigned long flag
clear_bit(flag, &p->_flags);
}
+extern struct device_node *__of_find_all_nodes(struct device_node *prev);
extern struct device_node *of_find_all_nodes(struct device_node *prev);
/*
@@ -215,8 +215,9 @@ static inline const char *of_node_full_name(const struct device_node *np)
return np ? np->full_name : "<no-node>";
}
-#define for_each_of_allnodes(dn) \
- for (dn = of_allnodes; dn; dn = dn->allnext)
+#define for_each_of_allnodes_from(from, dn) \
+ for (dn = __of_find_all_nodes(from); dn; dn = __of_find_all_nodes(dn))
+#define for_each_of_allnodes(dn) for_each_of_allnodes_from(NULL, dn)
extern struct device_node *of_find_node_by_name(struct device_node *from,
const char *name);
extern struct device_node *of_find_node_by_type(struct device_node *from,
diff --git a/include/linux/of_pdt.h b/include/linux/of_pdt.h
index c65a18a0cfdf..7e09244bb679 100644
--- a/include/linux/of_pdt.h
+++ b/include/linux/of_pdt.h
@@ -39,7 +39,6 @@ extern void *prom_early_alloc(unsigned long size);
/* for building the device tree */
extern void of_pdt_build_devicetree(phandle root_node, struct of_pdt_ops *ops);
-extern void (*of_pdt_build_more)(struct device_node *dp,
- struct device_node ***nextp);
+extern void (*of_pdt_build_more)(struct device_node *dp);
#endif /* _LINUX_OF_PDT_H */
--
cgit v1.2.1
From 315786ebbf4ad6552b6fd8e0e7b2ea220fcbfdbd Mon Sep 17 00:00:00 2001
From: Olav Haugan <ohaugan@codeaurora.org>
Date: Sat, 25 Oct 2014 09:55:16 -0700
Subject: iommu: Add iommu_map_sg() function
Mapping and unmapping are more often than not in the critical path.
map_sg allows IOMMU driver implementations to optimize the process
of mapping buffers into the IOMMU page tables.
Instead of mapping a buffer one page at a time and requiring potentially
expensive TLB operations for each page, this function allows the driver
to map all pages in one go and defer TLB maintenance until after all
pages have been mapped.
Additionally, the mapping operation would be faster in general since
clients does not have to keep calling map API over and over again for
each physically contiguous chunk of memory that needs to be mapped to a
virtually contiguous region.
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/linux/iommu.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
(limited to 'include')
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index e6a7c9ff72f2..b29a5982e1c3 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -22,6 +22,7 @@
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/types.h>
+#include <linux/scatterlist.h>
#include <trace/events/iommu.h>
#define IOMMU_READ (1 << 0)
@@ -97,6 +98,8 @@ enum iommu_attr {
* @detach_dev: detach device from an iommu domain
* @map: map a physically contiguous memory region to an iommu domain
* @unmap: unmap a physically contiguous memory region from an iommu domain
+ * @map_sg: map a scatter-gather list of physically contiguous memory chunks
+ * to an iommu domain
* @iova_to_phys: translate iova to physical address
* @add_device: add device to iommu grouping
* @remove_device: remove device from iommu grouping
@@ -114,6 +117,8 @@ struct iommu_ops {
phys_addr_t paddr, size_t size, int prot);
size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
size_t size);
+ size_t (*map_sg)(struct iommu_domain *domain, unsigned long iova,
+ struct scatterlist *sg, unsigned int nents, int prot);
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
int (*add_device)(struct device *dev);
void (*remove_device)(struct device *dev);
@@ -156,6 +161,9 @@ extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot);
extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
size_t size);
+extern size_t default_iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
+ struct scatterlist *sg,unsigned int nents,
+ int prot);
extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova);
extern void iommu_set_fault_handler(struct iommu_domain *domain,
iommu_fault_handler_t handler, void *token);
@@ -241,6 +249,13 @@ static inline int report_iommu_fault(struct iommu_domain *domain,
return ret;
}
+static inline size_t iommu_map_sg(struct iommu_domain *domain,
+ unsigned long iova, struct scatterlist *sg,
+ unsigned int nents, int prot)
+{
+ return domain->ops->map_sg(domain, iova, sg, nents, prot);
+}
+
#else /* CONFIG_IOMMU_API */
struct iommu_ops {};
@@ -293,6 +308,13 @@ static inline int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
return -ENODEV;
}
+static inline size_t iommu_map_sg(struct iommu_domain *domain,
+ unsigned long iova, struct scatterlist *sg,
+ unsigned int nents, int prot)
+{
+ return -ENODEV;
+}
+
static inline int iommu_domain_window_enable(struct iommu_domain *domain,
u32 wnd_nr, phys_addr_t paddr,
u64 size, int prot)
--
cgit v1.2.1
From b75b276bead4850c86e60747babe09be5c13d4d1 Mon Sep 17 00:00:00 2001
From: Matthias Brugger <matthias.bgg@gmail.com>
Date: Tue, 21 Oct 2014 18:27:25 +0200
Subject: of: Request and map make argument name constant
This patch makes the name argument from of_io_request_and_map constant.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of_address.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 8cb14eb393d6..d88e81be6368 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -106,7 +106,7 @@ extern int of_address_to_resource(struct device_node *dev, int index,
struct resource *r);
void __iomem *of_iomap(struct device_node *node, int index);
void __iomem *of_io_request_and_map(struct device_node *device,
- int index, char *name);
+ int index, const char *name);
#else
#include <linux/io.h>
@@ -123,7 +123,7 @@ static inline void __iomem *of_iomap(struct device_node *device, int index)
}
static inline void __iomem *of_io_request_and_map(struct device_node *device,
- int index, char *name)
+ int index, const char *name)
{
return IOMEM_ERR_PTR(-EINVAL);
}
--
cgit v1.2.1
From 5f563585ab0afa8c35b3627d65c07966f7a5080e Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Thu, 2 Oct 2014 16:01:10 +0200
Subject: of: Fix padding in _OF_DECLARE macro definition
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index f54da3b699a8..3c851a8f23eb 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -836,7 +836,7 @@ static inline int of_get_available_child_count(const struct device_node *np)
= { .compatible = compat, \
.data = (fn == (fn_type)NULL) ? fn : fn }
#else
-#define _OF_DECLARE(table, name, compat, fn, fn_type) \
+#define _OF_DECLARE(table, name, compat, fn, fn_type) \
static const struct of_device_id __of_table_##name \
__attribute__((unused)) \
= { .compatible = compat, \
--
cgit v1.2.1
From 0d8a52f933f817d0b62955a5a362fb7f2508f06c Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 4 Nov 2014 11:55:09 +0300
Subject: ieee802154: || vs && in ieee802154_is_valid_extended_addr()
The ieee802154_is_valid_extended_addr() always returns true because
there is a typo. The || should be &&. Neither 0x0000000000000000ULL
nor 0xffffffffffffffffULL are valid addresses.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index 5d9e7459d94b..4c032863cd71 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -209,7 +209,7 @@ static inline bool ieee802154_is_valid_extended_addr(const __le64 addr)
* This is currently a workaround because neighbor discovery can't
* deal with short addresses types right now.
*/
- return ((addr != cpu_to_le64(0x0000000000000000ULL)) ||
+ return ((addr != cpu_to_le64(0x0000000000000000ULL)) &&
(addr != cpu_to_le64(0xffffffffffffffffULL)));
}
--
cgit v1.2.1
From ea9d0d771fcd32cd56070819749477d511ec9117 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 4 Nov 2014 16:52:28 +0100
Subject: ASoC: dpcm: Fix race between FE/BE updates and trigger
DPCM can update the FE/BE connection states totally asynchronously
from the FE's PCM state. Most of FE/BE state changes are protected by
mutex, so that they won't race, but there are still some actions that
are uncovered. For example, suppose to switch a BE while a FE's
stream is running. This would call soc_dpcm_runtime_update(), which
sets FE's runtime_update flag, then sets up and starts BEs, and clears
FE's runtime_update flag again.
When a device emits XRUN during this operation, the PCM core triggers
snd_pcm_stop(XRUN). Since the trigger action is an atomic ops, this
isn't blocked by the mutex, thus it kicks off DPCM's trigger action.
It eventually updates and clears FE's runtime_update flag while
soc_dpcm_runtime_update() is running concurrently, and it results in
confusion.
Usually, for avoiding such a race, we take a lock. There is a PCM
stream lock for that purpose. However, as already mentioned, the
trigger action is atomic, and we can't take the lock for the whole
soc_dpcm_runtime_update() or other operations that include the lengthy
jobs like hw_params or prepare.
This patch provides an alternative solution. This adds a way to defer
the conflicting trigger callback to be executed at the end of FE/BE
state changes. For doing it, two things are introduced:
- Each runtime_update state change of FEs is protected via PCM stream
lock.
- The FE's trigger callback checks the runtime_update flag. If it's
not set, the trigger action is executed there. If set, mark the
pending trigger action and returns immediately.
- At the exit of runtime_update state change, it checks whether the
pending trigger is present. If yes, it executes the trigger action
at this point.
Reported-and-tested-by: Qiao Zhou <zhouqiao@marvell.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
---
include/sound/soc-dpcm.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/sound/soc-dpcm.h b/include/sound/soc-dpcm.h
index 2883a7a6f9f3..98f2ade0266e 100644
--- a/include/sound/soc-dpcm.h
+++ b/include/sound/soc-dpcm.h
@@ -102,6 +102,8 @@ struct snd_soc_dpcm_runtime {
/* state and update */
enum snd_soc_dpcm_update runtime_update;
enum snd_soc_dpcm_state state;
+
+ int trigger_pending; /* trigger cmd + 1 if pending, 0 if not */
};
/* can this BE stop and free */
--
cgit v1.2.1
From 6fccf9383b280d463a7dfe1e0d048aff8df8a25e Mon Sep 17 00:00:00 2001
From: Keith Busch <keith.busch@intel.com>
Date: Wed, 18 Jun 2014 13:58:57 -0600
Subject: NVMe: Async event request
Submits NVMe asynchronous event requests, one event up to the controller
maximum or number of possible different event types (8), whichever is
smaller. Events successfully returned by the controller are logged.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/nvme.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 2bf403195c09..974efd04a4b1 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -99,6 +99,7 @@ struct nvme_dev {
u32 stripe_size;
u16 oncs;
u16 abort_limit;
+ u8 event_limit;
u8 vwc;
u8 initialized;
};
--
cgit v1.2.1
From a7dd7957acf798ac406afd6631e64a27ac4a5bf1 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <matthew.r.wilcox@intel.com>
Date: Sat, 28 Jun 2014 09:00:27 -0400
Subject: NVMe: Update list of status codes
Taken from the draft NVMe 1.1b specification.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/uapi/linux/nvme.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/nvme.h b/include/uapi/linux/nvme.h
index 29a7d8619d8d..134518b0100b 100644
--- a/include/uapi/linux/nvme.h
+++ b/include/uapi/linux/nvme.h
@@ -440,9 +440,15 @@ enum {
NVME_SC_FUSED_MISSING = 0xa,
NVME_SC_INVALID_NS = 0xb,
NVME_SC_CMD_SEQ_ERROR = 0xc,
+ NVME_SC_SGL_INVALID_LAST = 0xd,
+ NVME_SC_SGL_INVALID_COUNT = 0xe,
+ NVME_SC_SGL_INVALID_DATA = 0xf,
+ NVME_SC_SGL_INVALID_METADATA = 0x10,
+ NVME_SC_SGL_INVALID_TYPE = 0x11,
NVME_SC_LBA_RANGE = 0x80,
NVME_SC_CAP_EXCEEDED = 0x81,
NVME_SC_NS_NOT_READY = 0x82,
+ NVME_SC_RESERVATION_CONFLICT = 0x83,
NVME_SC_CQ_INVALID = 0x100,
NVME_SC_QID_INVALID = 0x101,
NVME_SC_QUEUE_SIZE = 0x102,
@@ -454,7 +460,15 @@ enum {
NVME_SC_INVALID_VECTOR = 0x108,
NVME_SC_INVALID_LOG_PAGE = 0x109,
NVME_SC_INVALID_FORMAT = 0x10a,
+ NVME_SC_FIRMWARE_NEEDS_RESET = 0x10b,
+ NVME_SC_INVALID_QUEUE = 0x10c,
+ NVME_SC_FEATURE_NOT_SAVEABLE = 0x10d,
+ NVME_SC_FEATURE_NOT_CHANGEABLE = 0x10e,
+ NVME_SC_FEATURE_NOT_PER_NS = 0x10f,
+ NVME_SC_FW_NEEDS_RESET_SUBSYS = 0x110,
NVME_SC_BAD_ATTRIBUTES = 0x180,
+ NVME_SC_INVALID_PI = 0x181,
+ NVME_SC_READ_ONLY = 0x182,
NVME_SC_WRITE_FAULT = 0x280,
NVME_SC_READ_ERROR = 0x281,
NVME_SC_GUARD_CHECK = 0x282,
--
cgit v1.2.1
From 1d0906246095184d1624c643c2088152d330c40a Mon Sep 17 00:00:00 2001
From: Keith Busch <keith.busch@intel.com>
Date: Mon, 23 Jun 2014 11:34:01 -0600
Subject: NVMe: Mismatched host/device page size support
Adds support for devices with max page size smaller than the host's.
In the case we encounter such a host/device combination, the driver will
split a page into as many PRP entries as necessary for the device's page
size capabilities. If the device's reported minimum page size is greater
than the host's, the driver will not attempt to enable the device and
return an error instead.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/nvme.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 974efd04a4b1..ed09074e5554 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -38,6 +38,7 @@ struct nvme_bar {
#define NVME_CAP_TIMEOUT(cap) (((cap) >> 24) & 0xff)
#define NVME_CAP_STRIDE(cap) (((cap) >> 32) & 0xf)
#define NVME_CAP_MPSMIN(cap) (((cap) >> 48) & 0xf)
+#define NVME_CAP_MPSMAX(cap) (((cap) >> 52) & 0xf)
enum {
NVME_CC_ENABLE = 1 << 0,
@@ -97,6 +98,7 @@ struct nvme_dev {
char firmware_rev[8];
u32 max_hw_sectors;
u32 stripe_size;
+ u32 page_size;
u16 oncs;
u16 abort_limit;
u8 event_limit;
--
cgit v1.2.1
From 7963e521811ed19396d47793cc77d87c643ab891 Mon Sep 17 00:00:00 2001
From: Keith Busch <keith.busch@intel.com>
Date: Fri, 12 Sep 2014 16:07:20 -0600
Subject: NVMe: Passthrough IOCTL for IO commands
The NVME_IOCTL_SUBMIT_IO only works for IO commands with block data
transfers and isn't usable for other NVMe commands like flush,
data set management, or any sort of vendor unique command. The
NVME_IOCTL_ADMIN_CMD, however, can easily be modified to accept arbitrary
IO commands in addition to arbitrary admin commands without breaking
backward compatibility. This patch just adds a new IOCTL to distinguish
if the driver should submit the command on an IO or Admin queue.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/uapi/linux/nvme.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/nvme.h b/include/uapi/linux/nvme.h
index 134518b0100b..97106556408f 100644
--- a/include/uapi/linux/nvme.h
+++ b/include/uapi/linux/nvme.h
@@ -503,7 +503,7 @@ struct nvme_user_io {
__u16 appmask;
};
-struct nvme_admin_cmd {
+struct nvme_passthru_cmd {
__u8 opcode;
__u8 flags;
__u16 rsvd1;
@@ -524,8 +524,11 @@ struct nvme_admin_cmd {
__u32 result;
};
+#define nvme_admin_cmd nvme_passthru_cmd
+
#define NVME_IOCTL_ID _IO('N', 0x40)
#define NVME_IOCTL_ADMIN_CMD _IOWR('N', 0x41, struct nvme_admin_cmd)
#define NVME_IOCTL_SUBMIT_IO _IOW('N', 0x42, struct nvme_user_io)
+#define NVME_IOCTL_IO_CMD _IOWR('N', 0x43, struct nvme_passthru_cmd)
#endif /* _UAPI_LINUX_NVME_H */
--
cgit v1.2.1
From 60e0545cc92ce4172c7069d559568717f64af332 Mon Sep 17 00:00:00 2001
From: Keith Busch <keith.busch@intel.com>
Date: Mon, 15 Sep 2014 14:08:38 -0600
Subject: NVMe: Updates for 1.1 spec
Updating commands and structures for NVMe 1.1 updates, mostly for nvme
reservations. There are no additional in-kernel uses, but this is for
the uapi.
While doing this, I noticed that the software progress features was
using the wrong value, so updating that value as well.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/uapi/linux/nvme.h | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/nvme.h b/include/uapi/linux/nvme.h
index 97106556408f..26386cf3db44 100644
--- a/include/uapi/linux/nvme.h
+++ b/include/uapi/linux/nvme.h
@@ -181,6 +181,22 @@ enum {
NVME_LBART_ATTRIB_HIDE = 1 << 1,
};
+struct nvme_reservation_status {
+ __le32 gen;
+ __u8 rtype;
+ __u8 regctl[2];
+ __u8 resv5[2];
+ __u8 ptpls;
+ __u8 resv10[13];
+ struct {
+ __le16 cntlid;
+ __u8 rcsts;
+ __u8 resv3[5];
+ __le64 hostid;
+ __le64 rkey;
+ } regctl_ds[];
+};
+
/* I/O commands */
enum nvme_opcode {
@@ -189,7 +205,12 @@ enum nvme_opcode {
nvme_cmd_read = 0x02,
nvme_cmd_write_uncor = 0x04,
nvme_cmd_compare = 0x05,
+ nvme_cmd_write_zeroes = 0x08,
nvme_cmd_dsm = 0x09,
+ nvme_cmd_resv_register = 0x0d,
+ nvme_cmd_resv_report = 0x0e,
+ nvme_cmd_resv_acquire = 0x11,
+ nvme_cmd_resv_release = 0x15,
};
struct nvme_common_command {
@@ -305,7 +326,11 @@ enum {
NVME_FEAT_IRQ_CONFIG = 0x09,
NVME_FEAT_WRITE_ATOMIC = 0x0a,
NVME_FEAT_ASYNC_EVENT = 0x0b,
- NVME_FEAT_SW_PROGRESS = 0x0c,
+ NVME_FEAT_AUTO_PST = 0x0c,
+ NVME_FEAT_SW_PROGRESS = 0x80,
+ NVME_FEAT_HOST_ID = 0x81,
+ NVME_FEAT_RESV_MASK = 0x82,
+ NVME_FEAT_RESV_PERSIST = 0x83,
NVME_LOG_ERROR = 0x01,
NVME_LOG_SMART = 0x02,
NVME_LOG_FW_SLOT = 0x03,
--
cgit v1.2.1
From a4aea5623d4a54682b6ff5c18196d7802f3e478f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matias=20Bj=C3=B8rling?= <m@bjorling.me>
Date: Tue, 4 Nov 2014 08:20:14 -0700
Subject: NVMe: Convert to blk-mq
This converts the NVMe driver to a blk-mq request-based driver.
The NVMe driver is currently bio-based and implements queue logic within
itself. By using blk-mq, a lot of these responsibilities can be moved
and simplified.
The patch is divided into the following blocks:
* Per-command data and cmdid have been moved into the struct request
field. The cmdid_data can be retrieved using blk_mq_rq_to_pdu() and id
maintenance are now handled by blk-mq through the rq->tag field.
* The logic for splitting bio's has been moved into the blk-mq layer.
The driver instead notifies the block layer about limited gap support in
SG lists.
* blk-mq handles timeouts and is reimplemented within nvme_timeout().
This both includes abort handling and command cancelation.
* Assignment of nvme queues to CPUs are replaced with the blk-mq
version. The current blk-mq strategy is to assign the number of
mapped queues and CPUs to provide synergy, while the nvme driver
assign as many nvme hw queues as possible. This can be implemented in
blk-mq if needed.
* NVMe queues are merged with the tags structure of blk-mq.
* blk-mq takes care of setup/teardown of nvme queues and guards invalid
accesses. Therefore, RCU-usage for nvme queues can be removed.
* IO tracing and accounting are handled by blk-mq and therefore removed.
* Queue suspension logic is replaced with the logic from the block
layer.
Contributions in this patch from:
Sam Bradshaw <sbradshaw@micron.com>
Jens Axboe <axboe@fb.com>
Keith Busch <keith.busch@intel.com>
Robert Nelson <rlnelson@google.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Acked-by: Jens Axboe <axboe@fb.com>
Updated for new ->queue_rq() prototype.
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/nvme.h | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index ed09074e5554..258945fcabf1 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -19,6 +19,7 @@
#include <linux/pci.h>
#include <linux/miscdevice.h>
#include <linux/kref.h>
+#include <linux/blk-mq.h>
struct nvme_bar {
__u64 cap; /* Controller Capabilities */
@@ -71,8 +72,10 @@ extern unsigned char nvme_io_timeout;
*/
struct nvme_dev {
struct list_head node;
- struct nvme_queue __rcu **queues;
- unsigned short __percpu *io_queue;
+ struct nvme_queue **queues;
+ struct request_queue *admin_q;
+ struct blk_mq_tag_set tagset;
+ struct blk_mq_tag_set admin_tagset;
u32 __iomem *dbs;
struct pci_dev *pci_dev;
struct dma_pool *prp_page_pool;
@@ -91,7 +94,6 @@ struct nvme_dev {
struct miscdevice miscdev;
work_func_t reset_workfn;
struct work_struct reset_work;
- struct work_struct cpu_work;
char name[12];
char serial[20];
char model[40];
@@ -135,7 +137,6 @@ struct nvme_iod {
int offset; /* Of PRP list */
int nents; /* Used in scatterlist */
int length; /* Of data, in bytes */
- unsigned long start_time;
dma_addr_t first_dma;
struct list_head node;
struct scatterlist sg[0];
@@ -153,12 +154,14 @@ static inline u64 nvme_block_nr(struct nvme_ns *ns, sector_t sector)
*/
void nvme_free_iod(struct nvme_dev *dev, struct nvme_iod *iod);
-int nvme_setup_prps(struct nvme_dev *, struct nvme_iod *, int , gfp_t);
+int nvme_setup_prps(struct nvme_dev *, struct nvme_iod *, int, gfp_t);
struct nvme_iod *nvme_map_user_pages(struct nvme_dev *dev, int write,
unsigned long addr, unsigned length);
void nvme_unmap_user_pages(struct nvme_dev *dev, int write,
struct nvme_iod *iod);
-int nvme_submit_io_cmd(struct nvme_dev *, struct nvme_command *, u32 *);
+int nvme_submit_io_cmd(struct nvme_dev *, struct nvme_ns *,
+ struct nvme_command *, u32 *);
+int nvme_submit_flush_data(struct nvme_queue *nvmeq, struct nvme_ns *ns);
int nvme_submit_admin_cmd(struct nvme_dev *, struct nvme_command *,
u32 *result);
int nvme_identify(struct nvme_dev *, unsigned nsid, unsigned cns,
--
cgit v1.2.1
From ffdcd955c3078af3ce117edcfce80fde1a512bed Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 21 Oct 2014 13:33:55 +0200
Subject: ACPI: Add support for device specific properties
Device Tree is used in many embedded systems to describe the system
configuration to the OS. It supports attaching properties or name-value
pairs to the devices it describe. With these properties one can pass
additional information to the drivers that would not be available
otherwise.
ACPI is another configuration mechanism (among other things) typically
seen, but not limited to, x86 machines. ACPI allows passing arbitrary
data from methods but there has not been mechanism equivalent to Device
Tree until the introduction of _DSD in the recent publication of the
ACPI 5.1 specification.
In order to facilitate ACPI usage in systems where Device Tree is
typically used, it would be beneficial to standardize a way to retrieve
Device Tree style properties from ACPI devices, which is what we do in
this patch.
If a given device described in ACPI namespace wants to export properties it
must implement _DSD method (Device Specific Data, introduced with ACPI 5.1)
that returns the properties in a package of packages. For example:
Name (_DSD, Package () {
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package () {
Package () {"name1", <VALUE1>},
Package () {"name2", <VALUE2>},
...
}
})
The UUID reserved for properties is daffd814-6eba-4d8c-8a91-bc9bbf4aa301
and is documented in the ACPI 5.1 companion document called "_DSD
Implementation Guide" [1], [2].
We add several helper functions that can be used to extract these
properties and convert them to different Linux data types.
The ultimate goal is that we only have one device property API that
retrieves the requested properties from Device Tree or from ACPI
transparent to the caller.
[1] http://www.uefi.org/sites/default/files/resources/_DSD-implementation-guide-toplevel.htm
[2] http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpi_bus.h | 7 +++++++
include/linux/acpi.h | 40 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 47 insertions(+)
(limited to 'include')
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index f34a0835aa4f..475781170091 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -337,6 +337,12 @@ struct acpi_device_physical_node {
bool put_online:1;
};
+/* ACPI Device Specific Data (_DSD) */
+struct acpi_device_data {
+ const union acpi_object *pointer;
+ const union acpi_object *properties;
+};
+
/* Device */
struct acpi_device {
int device_type;
@@ -353,6 +359,7 @@ struct acpi_device {
struct acpi_device_wakeup wakeup;
struct acpi_device_perf performance;
struct acpi_device_dir dir;
+ struct acpi_device_data data;
struct acpi_scan_handler *handler;
struct acpi_hotplug_context *hp;
struct acpi_driver *driver;
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 407a12f663eb..dcdf8738898c 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -659,4 +659,44 @@ do { \
#endif
#endif
+/* Device properties */
+
+#define MAX_ACPI_REFERENCE_ARGS 8
+struct acpi_reference_args {
+ struct acpi_device *adev;
+ size_t nargs;
+ u64 args[MAX_ACPI_REFERENCE_ARGS];
+};
+
+#ifdef CONFIG_ACPI
+int acpi_dev_get_property(struct acpi_device *adev, const char *name,
+ acpi_object_type type, const union acpi_object **obj);
+int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
+ acpi_object_type type,
+ const union acpi_object **obj);
+int acpi_dev_get_property_reference(struct acpi_device *adev, const char *name,
+ const char *cells_name, size_t index,
+ struct acpi_reference_args *args);
+#else
+static inline int acpi_dev_get_property(struct acpi_device *adev,
+ const char *name, acpi_object_type type,
+ const union acpi_object **obj)
+{
+ return -ENXIO;
+}
+static inline int acpi_dev_get_property_array(struct acpi_device *adev,
+ const char *name,
+ acpi_object_type type,
+ const union acpi_object **obj)
+{
+ return -ENXIO;
+}
+static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
+ const char *name, const char *cells_name,
+ size_t index, struct acpi_reference_args *args)
+{
+ return -ENXIO;
+}
+#endif
+
#endif /*_LINUX_ACPI_H*/
--
cgit v1.2.1
From b31384fa5de37a100507751dfb5c0a49d06cee67 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 4 Nov 2014 01:28:56 +0100
Subject: Driver core: Unified device properties interface for platform
firmware
Add a uniform interface by which device drivers can request device
properties from the platform firmware by providing a property name
and the corresponding data type. The purpose of it is to help to
write portable code that won't depend on any particular platform
firmware interface.
The following general helper functions are added:
device_property_present()
device_property_read_u8()
device_property_read_u16()
device_property_read_u32()
device_property_read_u64()
device_property_read_string()
device_property_read_u8_array()
device_property_read_u16_array()
device_property_read_u32_array()
device_property_read_u64_array()
device_property_read_string_array()
The first one allows the caller to check if the given property is
present. The next 5 of them allow single-valued properties of
various types to be retrieved in a uniform way. The remaining 5 are
for reading properties with multiple values (arrays of either numbers
or strings).
The interface covers both ACPI and Device Trees.
This change set includes material from Mika Westerberg and Aaron Lu.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/acpi.h | 32 +++++++++++++++++++++
include/linux/of.h | 12 ++++++++
include/linux/property.h | 73 ++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 117 insertions(+)
create mode 100644 include/linux/property.h
(limited to 'include')
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index dcdf8738898c..76d64d6a903a 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -28,6 +28,7 @@
#include <linux/errno.h>
#include <linux/ioport.h> /* for struct resource */
#include <linux/device.h>
+#include <linux/property.h>
#ifndef _LINUX
#define _LINUX
@@ -677,6 +678,13 @@ int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
int acpi_dev_get_property_reference(struct acpi_device *adev, const char *name,
const char *cells_name, size_t index,
struct acpi_reference_args *args);
+
+int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
+ void **valptr);
+int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
+ enum dev_prop_type proptype, void *val);
+int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
+ enum dev_prop_type proptype, void *val, size_t nval);
#else
static inline int acpi_dev_get_property(struct acpi_device *adev,
const char *name, acpi_object_type type,
@@ -697,6 +705,30 @@ static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
{
return -ENXIO;
}
+
+static inline int acpi_dev_prop_get(struct acpi_device *adev,
+ const char *propname,
+ void **valptr)
+{
+ return -ENXIO;
+}
+
+static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
+ const char *propname,
+ enum dev_prop_type proptype,
+ void *val)
+{
+ return -ENXIO;
+}
+
+static inline int acpi_dev_prop_read(struct acpi_device *adev,
+ const char *propname,
+ enum dev_prop_type proptype,
+ void *val, size_t nval)
+{
+ return -ENXIO;
+}
+
#endif
#endif /*_LINUX_ACPI_H*/
diff --git a/include/linux/of.h b/include/linux/of.h
index 29f0adc5f3e4..ce9f6a2b3532 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -23,6 +23,7 @@
#include <linux/spinlock.h>
#include <linux/topology.h>
#include <linux/notifier.h>
+#include <linux/property.h>
#include <asm/byteorder.h>
#include <asm/errno.h>
@@ -263,6 +264,10 @@ extern int of_property_read_u32_array(const struct device_node *np,
size_t sz);
extern int of_property_read_u64(const struct device_node *np,
const char *propname, u64 *out_value);
+extern int of_property_read_u64_array(const struct device_node *np,
+ const char *propname,
+ u64 *out_values,
+ size_t sz);
extern int of_property_read_string(struct device_node *np,
const char *propname,
@@ -477,6 +482,13 @@ static inline int of_property_read_u32_array(const struct device_node *np,
return -ENOSYS;
}
+static inline int of_property_read_u64_array(const struct device_node *np,
+ const char *propname,
+ u64 *out_values, size_t sz)
+{
+ return -ENOSYS;
+}
+
static inline int of_property_read_string(struct device_node *np,
const char *propname,
const char **out_string)
diff --git a/include/linux/property.h b/include/linux/property.h
new file mode 100644
index 000000000000..9242fb0221ba
--- /dev/null
+++ b/include/linux/property.h
@@ -0,0 +1,73 @@
+/*
+ * property.h - Unified device property interface.
+ *
+ * Copyright (C) 2014, Intel Corporation
+ * Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ * Mika Westerberg <mika.westerberg@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _LINUX_PROPERTY_H_
+#define _LINUX_PROPERTY_H_
+
+#include <linux/types.h>
+
+struct device;
+
+enum dev_prop_type {
+ DEV_PROP_U8,
+ DEV_PROP_U16,
+ DEV_PROP_U32,
+ DEV_PROP_U64,
+ DEV_PROP_STRING,
+ DEV_PROP_MAX,
+};
+
+bool device_property_present(struct device *dev, const char *propname);
+int device_property_read_u8_array(struct device *dev, const char *propname,
+ u8 *val, size_t nval);
+int device_property_read_u16_array(struct device *dev, const char *propname,
+ u16 *val, size_t nval);
+int device_property_read_u32_array(struct device *dev, const char *propname,
+ u32 *val, size_t nval);
+int device_property_read_u64_array(struct device *dev, const char *propname,
+ u64 *val, size_t nval);
+int device_property_read_string_array(struct device *dev, const char *propname,
+ const char **val, size_t nval);
+int device_property_read_string(struct device *dev, const char *propname,
+ const char **val);
+
+static inline bool device_property_read_bool(struct device *dev,
+ const char *propname)
+{
+ return device_property_present(dev, propname);
+}
+
+static inline int device_property_read_u8(struct device *dev,
+ const char *propname, u8 *val)
+{
+ return device_property_read_u8_array(dev, propname, val, 1);
+}
+
+static inline int device_property_read_u16(struct device *dev,
+ const char *propname, u16 *val)
+{
+ return device_property_read_u16_array(dev, propname, val, 1);
+}
+
+static inline int device_property_read_u32(struct device *dev,
+ const char *propname, u32 *val)
+{
+ return device_property_read_u32_array(dev, propname, val, 1);
+}
+
+static inline int device_property_read_u64(struct device *dev,
+ const char *propname, u64 *val)
+{
+ return device_property_read_u64_array(dev, propname, val, 1);
+}
+
+#endif /* _LINUX_PROPERTY_H_ */
--
cgit v1.2.1
From 733e625139fe455b4d910ac63c18c90f7cbe2d6f Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 21 Oct 2014 13:33:56 +0200
Subject: ACPI: Allow drivers to match using Device Tree compatible property
We have lots of existing Device Tree enabled drivers and allocating
separate _HID for each is not feasible. Instead we allocate special _HID
"PRP0001" that means that the match should be done using Device Tree
compatible property using driver's .of_match_table instead if the driver
is missing .acpi_match_table.
If there is a need to distinguish from where the device is enumerated
(DT/ACPI) driver can check dev->of_node or ACPI_COMPATION(dev).
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpi_bus.h | 1 +
include/linux/acpi.h | 8 ++------
2 files changed, 3 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 475781170091..f59cbf860658 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -341,6 +341,7 @@ struct acpi_device_physical_node {
struct acpi_device_data {
const union acpi_object *pointer;
const union acpi_object *properties;
+ const union acpi_object *of_compatible;
};
/* Device */
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 76d64d6a903a..38296d686c55 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -424,12 +424,8 @@ extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
const struct device *dev);
-static inline bool acpi_driver_match_device(struct device *dev,
- const struct device_driver *drv)
-{
- return !!acpi_match_device(drv->acpi_match_table, dev);
-}
-
+extern bool acpi_driver_match_device(struct device *dev,
+ const struct device_driver *drv);
int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
int acpi_device_modalias(struct device *, char *, int);
--
cgit v1.2.1
From 5c51277a9ababfa44a7f944100bdc9fbda139905 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Mon, 27 Oct 2014 23:29:32 +0100
Subject: leds: leds-gpio: Add support for GPIO descriptors
GPIO descriptors are the preferred way over legacy GPIO numbers
nowadays. Convert the driver to use GPIO descriptors internally but
still allow passing legacy GPIO numbers from platform data to support
existing platforms.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/leds.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/leds.h b/include/linux/leds.h
index a57611d0c94e..f3af5c4d9084 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -261,6 +261,7 @@ struct gpio_led {
unsigned retain_state_suspended : 1;
unsigned default_state : 2;
/* default_state should be one of LEDS_GPIO_DEFSTATE_(ON|OFF|KEEP) */
+ struct gpio_desc *gpiod;
};
#define LEDS_GPIO_DEFSTATE_OFF 0
#define LEDS_GPIO_DEFSTATE_ON 1
--
cgit v1.2.1
From 633a21d80b4a2cd648aa2dacdb22494ffb2f28f0 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Tue, 21 Oct 2014 23:30:25 +0200
Subject: input: gpio_keys_polled: Add support for GPIO descriptors
GPIO descriptors are the preferred way over legacy GPIO numbers
nowadays. Convert the driver to use GPIO descriptors internally but
still allow passing legacy GPIO numbers from platform data to support
existing platforms.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/gpio_keys.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
index 8b622468952c..ee2d8c6f9130 100644
--- a/include/linux/gpio_keys.h
+++ b/include/linux/gpio_keys.h
@@ -2,6 +2,7 @@
#define _GPIO_KEYS_H
struct device;
+struct gpio_desc;
/**
* struct gpio_keys_button - configuration parameters
@@ -17,6 +18,7 @@ struct device;
* disable button via sysfs
* @value: axis value for %EV_ABS
* @irq: Irq number in case of interrupt keys
+ * @gpiod: GPIO descriptor
*/
struct gpio_keys_button {
unsigned int code;
@@ -29,6 +31,7 @@ struct gpio_keys_button {
bool can_disable;
int value;
unsigned int irq;
+ struct gpio_desc *gpiod;
};
/**
--
cgit v1.2.1
From 8a0662d9ed2968e1186208336a8e1fab3fdfea63 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 4 Nov 2014 14:03:59 +0100
Subject: Driver core: Unified interface for firmware node properties
Add new generic routines are provided for retrieving properties from
device description objects in the platform firmware in case there are
no struct device objects for them (either those objects have not been
created yet or they do not exist at all).
The following functions are provided:
fwnode_property_present()
fwnode_property_read_u8()
fwnode_property_read_u16()
fwnode_property_read_u32()
fwnode_property_read_u64()
fwnode_property_read_string()
fwnode_property_read_u8_array()
fwnode_property_read_u16_array()
fwnode_property_read_u32_array()
fwnode_property_read_u64_array()
fwnode_property_read_string_array()
in analogy with the corresponding functions for struct device added
previously. For all of them, the first argument is a pointer to struct
fwnode_handle (new type) that allows a device description object
(depending on what platform firmware interface is in use) to be
obtained.
Add a new macro device_for_each_child_node() for iterating over the
children of the device description object associated with a given
device and a new function device_get_child_node_count() returning the
number of a given device's child nodes.
The interface covers both ACPI and Device Trees.
Suggested-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpi_bus.h | 17 ++++++++++++
include/linux/acpi.h | 26 ++++++++++++++++++
include/linux/of.h | 22 +++++++++++++++
include/linux/property.h | 70 ++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 135 insertions(+)
(limited to 'include')
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index f59cbf860658..a361f43b1974 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -27,6 +27,7 @@
#define __ACPI_BUS_H__
#include <linux/device.h>
+#include <linux/property.h>
/* TBD: Make dynamic */
#define ACPI_MAX_HANDLES 10
@@ -348,6 +349,7 @@ struct acpi_device_data {
struct acpi_device {
int device_type;
acpi_handle handle; /* no handle for fixed hardware */
+ struct fwnode_handle fwnode;
struct acpi_device *parent;
struct list_head children;
struct list_head node;
@@ -372,6 +374,21 @@ struct acpi_device {
void (*remove)(struct acpi_device *);
};
+static inline bool is_acpi_node(struct fwnode_handle *fwnode)
+{
+ return fwnode && fwnode->type == FWNODE_ACPI;
+}
+
+static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode)
+{
+ return fwnode ? container_of(fwnode, struct acpi_device, fwnode) : NULL;
+}
+
+static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
+{
+ return &adev->fwnode;
+}
+
static inline void *acpi_driver_data(struct acpi_device *d)
{
return d->driver_data;
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 38296d686c55..5b8802216a93 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -440,6 +440,23 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *);
#define ACPI_COMPANION_SET(dev, adev) do { } while (0)
#define ACPI_HANDLE(dev) (NULL)
+struct fwnode_handle;
+
+static inline bool is_acpi_node(struct fwnode_handle *fwnode)
+{
+ return false;
+}
+
+static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode)
+{
+ return NULL;
+}
+
+static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
+{
+ return NULL;
+}
+
static inline const char *acpi_dev_name(struct acpi_device *adev)
{
return NULL;
@@ -681,6 +698,9 @@ int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
enum dev_prop_type proptype, void *val);
int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
enum dev_prop_type proptype, void *val, size_t nval);
+
+struct acpi_device *acpi_get_next_child(struct device *dev,
+ struct acpi_device *child);
#else
static inline int acpi_dev_get_property(struct acpi_device *adev,
const char *name, acpi_object_type type,
@@ -725,6 +745,12 @@ static inline int acpi_dev_prop_read(struct acpi_device *adev,
return -ENXIO;
}
+static inline struct acpi_device *acpi_get_next_child(struct device *dev,
+ struct acpi_device *child)
+{
+ return NULL;
+}
+
#endif
#endif /*_LINUX_ACPI_H*/
diff --git a/include/linux/of.h b/include/linux/of.h
index ce9f6a2b3532..cf79be1441d2 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -50,6 +50,7 @@ struct device_node {
const char *type;
phandle phandle;
const char *full_name;
+ struct fwnode_handle fwnode;
struct property *properties;
struct property *deadprops; /* removed properties */
@@ -80,6 +81,7 @@ extern struct kobj_type of_node_ktype;
static inline void of_node_init(struct device_node *node)
{
kobject_init(&node->kobj, &of_node_ktype);
+ node->fwnode.type = FWNODE_OF;
}
/* true when node is initialized */
@@ -115,6 +117,16 @@ extern struct device_node *of_aliases;
extern struct device_node *of_stdout;
extern raw_spinlock_t devtree_lock;
+static inline bool is_of_node(struct fwnode_handle *fwnode)
+{
+ return fwnode && fwnode->type == FWNODE_OF;
+}
+
+static inline struct device_node *of_node(struct fwnode_handle *fwnode)
+{
+ return fwnode ? container_of(fwnode, struct device_node, fwnode) : NULL;
+}
+
static inline bool of_have_populated_dt(void)
{
return of_allnodes != NULL;
@@ -360,6 +372,16 @@ bool of_console_check(struct device_node *dn, char *name, int index);
#else /* CONFIG_OF */
+static inline bool is_of_node(struct fwnode_handle *fwnode)
+{
+ return false;
+}
+
+static inline struct device_node *of_node(struct fwnode_handle *fwnode)
+{
+ return NULL;
+}
+
static inline const char* of_node_full_name(const struct device_node *np)
{
return "<no-node>";
diff --git a/include/linux/property.h b/include/linux/property.h
index 9242fb0221ba..a6a3d98bd7e9 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -40,6 +40,46 @@ int device_property_read_string_array(struct device *dev, const char *propname,
int device_property_read_string(struct device *dev, const char *propname,
const char **val);
+enum fwnode_type {
+ FWNODE_INVALID = 0,
+ FWNODE_OF,
+ FWNODE_ACPI,
+};
+
+struct fwnode_handle {
+ enum fwnode_type type;
+};
+
+bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname);
+int fwnode_property_read_u8_array(struct fwnode_handle *fwnode,
+ const char *propname, u8 *val,
+ size_t nval);
+int fwnode_property_read_u16_array(struct fwnode_handle *fwnode,
+ const char *propname, u16 *val,
+ size_t nval);
+int fwnode_property_read_u32_array(struct fwnode_handle *fwnode,
+ const char *propname, u32 *val,
+ size_t nval);
+int fwnode_property_read_u64_array(struct fwnode_handle *fwnode,
+ const char *propname, u64 *val,
+ size_t nval);
+int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
+ const char *propname, const char **val,
+ size_t nval);
+int fwnode_property_read_string(struct fwnode_handle *fwnode,
+ const char *propname, const char **val);
+
+struct fwnode_handle *device_get_next_child_node(struct device *dev,
+ struct fwnode_handle *child);
+
+#define device_for_each_child_node(dev, child) \
+ for (child = device_get_next_child_node(dev, NULL); child; \
+ child = device_get_next_child_node(dev, child))
+
+void fwnode_handle_put(struct fwnode_handle *fwnode);
+
+unsigned int device_get_child_node_count(struct device *dev);
+
static inline bool device_property_read_bool(struct device *dev,
const char *propname)
{
@@ -70,4 +110,34 @@ static inline int device_property_read_u64(struct device *dev,
return device_property_read_u64_array(dev, propname, val, 1);
}
+static inline bool fwnode_property_read_bool(struct fwnode_handle *fwnode,
+ const char *propname)
+{
+ return fwnode_property_present(fwnode, propname);
+}
+
+static inline int fwnode_property_read_u8(struct fwnode_handle *fwnode,
+ const char *propname, u8 *val)
+{
+ return fwnode_property_read_u8_array(fwnode, propname, val, 1);
+}
+
+static inline int fwnode_property_read_u16(struct fwnode_handle *fwnode,
+ const char *propname, u16 *val)
+{
+ return fwnode_property_read_u16_array(fwnode, propname, val, 1);
+}
+
+static inline int fwnode_property_read_u32(struct fwnode_handle *fwnode,
+ const char *propname, u32 *val)
+{
+ return fwnode_property_read_u32_array(fwnode, propname, val, 1);
+}
+
+static inline int fwnode_property_read_u64(struct fwnode_handle *fwnode,
+ const char *propname, u64 *val)
+{
+ return fwnode_property_read_u64_array(fwnode, propname, val, 1);
+}
+
#endif /* _LINUX_PROPERTY_H_ */
--
cgit v1.2.1
From 40b7318319281b1bdec804f6435f26cadd329c13 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 21 Oct 2014 13:33:59 +0200
Subject: gpio: Support for unified device properties interface
Some drivers need to deal with only firmware representation of its
GPIOs. An example would be a GPIO button array driver where each button
is described as a separate firmware node in device tree. Typically these
child nodes do not have physical representation in the Linux device
model.
In order to help device drivers to handle such firmware child nodes we
add dev[m]_get_named_gpiod_from_child() that takes a child firmware
node pointer as its second argument (the first one is the parent device
itself), finds the GPIO using whatever is the underlying firmware
method, and requests the GPIO properly.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/gpio/consumer.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 12f146fa6604..00b1b70d68ba 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -94,6 +94,13 @@ int gpiod_to_irq(const struct gpio_desc *desc);
struct gpio_desc *gpio_to_desc(unsigned gpio);
int desc_to_gpio(const struct gpio_desc *desc);
+/* Child properties interface */
+struct fwnode_handle;
+
+struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
+ const char *propname);
+struct gpio_desc *devm_get_gpiod_from_child(struct device *dev,
+ struct fwnode_handle *child);
#else /* CONFIG_GPIOLIB */
static inline struct gpio_desc *__must_check __gpiod_get(struct device *dev,
--
cgit v1.2.1
From f028d5242d7ecb0a1bfc80e7bd292201c8612641 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 3 Nov 2014 23:39:41 +0100
Subject: ACPI / GPIO: Driver GPIO mappings for ACPI GPIOs
Provide a way for device drivers using GPIOs described by ACPI
GpioIo resources in _CRS to tell the GPIO subsystem what names
(connection IDs) to associate with specific GPIO pins defined
in there.
To do that, a driver needs to define a mapping table as a
NULL-terminated array of struct acpi_gpio_mapping objects
that each contain a name, a pointer to an array of line data
(struct acpi_gpio_params) objects and the size of that array.
Each struct acpi_gpio_params object consists of three fields,
crs_entry_index, line_index, active_low, representing the index of
the target GpioIo()/GpioInt() resource in _CRS starting from zero,
the index of the target line in that resource starting from zero,
and the active-low flag for that line, respectively.
Next, the mapping table needs to be passed as the second
argument to acpi_dev_add_driver_gpios() that will register it with
the ACPI device object pointed to by its first argument. That
should be done in the driver's .probe() routine.
On removal, the driver should unregister its GPIO mapping table
by calling acpi_dev_remove_driver_gpios() on the ACPI device
object where that table was previously registered.
Included are fixes from Mika Westerberg.
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpi_bus.h | 3 +++
include/linux/acpi.h | 30 ++++++++++++++++++++++++++++++
2 files changed, 33 insertions(+)
(limited to 'include')
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index a361f43b1974..7d1ce40e201e 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -345,6 +345,8 @@ struct acpi_device_data {
const union acpi_object *of_compatible;
};
+struct acpi_gpio_mapping;
+
/* Device */
struct acpi_device {
int device_type;
@@ -366,6 +368,7 @@ struct acpi_device {
struct acpi_scan_handler *handler;
struct acpi_hotplug_context *hp;
struct acpi_driver *driver;
+ const struct acpi_gpio_mapping *driver_gpios;
void *driver_data;
struct device dev;
unsigned int physical_node_count;
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 5b8802216a93..0902426c4521 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -673,6 +673,36 @@ do { \
#endif
#endif
+struct acpi_gpio_params {
+ unsigned int crs_entry_index;
+ unsigned int line_index;
+ bool active_low;
+};
+
+struct acpi_gpio_mapping {
+ const char *name;
+ const struct acpi_gpio_params *data;
+ unsigned int size;
+};
+
+#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
+int acpi_dev_add_driver_gpios(struct acpi_device *adev,
+ const struct acpi_gpio_mapping *gpios);
+
+static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
+{
+ if (adev)
+ adev->driver_gpios = NULL;
+}
+#else
+static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
+ const struct acpi_gpio_mapping *gpios)
+{
+ return -ENXIO;
+}
+static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
+#endif
+
/* Device properties */
#define MAX_ACPI_REFERENCE_ARGS 8
--
cgit v1.2.1
From c673a2b4008103525a3cf21bedf15ffac37bfef0 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Fri, 31 Oct 2014 13:40:58 +0200
Subject: leds: leds-gpio: Convert gpio_blink_set() to use GPIO descriptors
Commit 21f2aae91e902aad ("leds: leds-gpio: Add support for GPIO
descriptors") already converted most of the driver to use GPIO descriptors.
What is still missing is the platform specific hook gpio_blink_set() and
board files which pass legacy GPIO numbers to this driver in platform data.
In this patch we handle the former and convert gpio_blink_set() to take
GPIO descriptor instead. In order to do this we convert the existing four
users to accept GPIO descriptor and translate it to legacy GPIO number in
the platform code. This effectively "pushes" legacy GPIO number usage from
the driver to platforms.
Also add comment to the remaining block describing that it is legacy code
path and we are getting rid of it eventually.
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/leds.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/leds.h b/include/linux/leds.h
index f3af5c4d9084..361101fef270 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -274,7 +274,7 @@ struct gpio_led_platform_data {
#define GPIO_LED_NO_BLINK_LOW 0 /* No blink GPIO state low */
#define GPIO_LED_NO_BLINK_HIGH 1 /* No blink GPIO state high */
#define GPIO_LED_BLINK 2 /* Please, blink */
- int (*gpio_blink_set)(unsigned gpio, int state,
+ int (*gpio_blink_set)(struct gpio_desc *desc, int state,
unsigned long *delay_on,
unsigned long *delay_off);
};
--
cgit v1.2.1
From f1673381b1481a409238d4552a0700d490c5b36c Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 3 Nov 2014 17:35:02 +0100
Subject: syncookies: split cookie_check_timestamp() into two functions
The function cookie_check_timestamp(), both called from IPv4/6 context,
is being used to decode the echoed timestamp from the SYN/ACK into TCP
options used for follow-up communication with the peer.
We can remove ECN handling from that function, split it into a separate
one, and simply rename the original function into cookie_decode_options().
cookie_decode_options() just fills in tcp_option struct based on the
echoed timestamp received from the peer. Anything that fails in this
function will actually discard the request socket.
While this is the natural place for decoding options such as ECN which
commit 172d69e63c7f ("syncookies: add support for ECN") added, we argue
that in particular for ECN handling, it can be checked at a later point
in time as the request sock would actually not need to be dropped from
this, but just ECN support turned off.
Therefore, we split this functionality into cookie_ecn_ok(), which tells
us if the timestamp indicates ECN support AND the tcp_ecn sysctl is enabled.
This prepares for per-route ECN support: just looking at the tcp_ecn sysctl
won't be enough anymore at that point; if the timestamp indicates ECN
and sysctl tcp_ecn == 0, we will also need to check the ECN dst metric.
This would mean adding a route lookup to cookie_check_timestamp(), which
we definitely want to avoid. As we already do a route lookup at a later
point in cookie_{v4,v6}_check(), we can simply make use of that as well
for the new cookie_ecn_ok() function w/o any additional cost.
Joint work with Daniel Borkmann.
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 3a35b1500359..36c5084964cd 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -490,17 +490,16 @@ u32 __cookie_v4_init_sequence(const struct iphdr *iph, const struct tcphdr *th,
u16 *mssp);
__u32 cookie_v4_init_sequence(struct sock *sk, const struct sk_buff *skb,
__u16 *mss);
-#endif
-
__u32 cookie_init_timestamp(struct request_sock *req);
-bool cookie_check_timestamp(struct tcp_options_received *opt, struct net *net,
- bool *ecn_ok);
+bool cookie_timestamp_decode(struct tcp_options_received *opt);
+bool cookie_ecn_ok(const struct tcp_options_received *opt,
+ const struct net *net);
/* From net/ipv6/syncookies.c */
int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th,
u32 cookie);
struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb);
-#ifdef CONFIG_SYN_COOKIES
+
u32 __cookie_v6_init_sequence(const struct ipv6hdr *iph,
const struct tcphdr *th, u16 *mssp);
__u32 cookie_v6_init_sequence(struct sock *sk, const struct sk_buff *skb,
--
cgit v1.2.1
From f7b3bec6f5167efaf56b756abfafb924cb1d3050 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 3 Nov 2014 17:35:03 +0100
Subject: net: allow setting ecn via routing table
This patch allows to set ECN on a per-route basis in case the sysctl
tcp_ecn is not set to 1. In other words, when ECN is set for specific
routes, it provides a tcp_ecn=1 behaviour for that route while the rest
of the stack acts according to the global settings.
One can use 'ip route change dev $dev $net features ecn' to toggle this.
Having a more fine-grained per-route setting can be beneficial for various
reasons, for example, 1) within data centers, or 2) local ISPs may deploy
ECN support for their own video/streaming services [1], etc.
There was a recent measurement study/paper [2] which scanned the Alexa's
publicly available top million websites list from a vantage point in US,
Europe and Asia:
Half of the Alexa list will now happily use ECN (tcp_ecn=2, most likely
blamed to commit 255cac91c3 ("tcp: extend ECN sysctl to allow server-side
only ECN") ;)); the break in connectivity on-path was found is about
1 in 10,000 cases. Timeouts rather than receiving back RSTs were much
more common in the negotiation phase (and mostly seen in the Alexa
middle band, ranks around 50k-150k): from 12-thousand hosts on which
there _may_ be ECN-linked connection failures, only 79 failed with RST
when _not_ failing with RST when ECN is not requested.
It's unclear though, how much equipment in the wild actually marks CE
when buffers start to fill up.
We thought about a fallback to non-ECN for retransmitted SYNs as another
global option (which could perhaps one day be made default), but as Eric
points out, there's much more work needed to detect broken middleboxes.
Two examples Eric mentioned are buggy firewalls that accept only a single
SYN per flow, and middleboxes that successfully let an ECN flow establish,
but later mark CE for all packets (so cwnd converges to 1).
[1] http://www.ietf.org/proceedings/89/slides/slides-89-tsvarea-1.pdf, p.15
[2] http://ecn.ethz.ch/
Joint work with Daniel Borkmann.
Reference: http://thread.gmane.org/gmane.linux.network/335797
Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tcp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 36c5084964cd..f50f29faf76f 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -493,7 +493,7 @@ __u32 cookie_v4_init_sequence(struct sock *sk, const struct sk_buff *skb,
__u32 cookie_init_timestamp(struct request_sock *req);
bool cookie_timestamp_decode(struct tcp_options_received *opt);
bool cookie_ecn_ok(const struct tcp_options_received *opt,
- const struct net *net);
+ const struct net *net, const struct dst_entry *dst);
/* From net/ipv6/syncookies.c */
int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th,
--
cgit v1.2.1
From 3cb9ae4fd82ebc9759bc59998c88c385d35496fe Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 29 Oct 2014 10:03:57 +0100
Subject: drm: Move drm_crtc_init from drm_crtc.h to drm_plane_helper.h
Just a bit of OCD cleanup on headers - this function isn't the core
interface any more but just a helper for drivers who haven't yet
transitioned to universal planes. Put the declaration at the right
spot and sprinkle necessary #includes over all drivers.
Maybe this helps to encourage driver maintainers to do the switch.
v2: Fix #include ordering for tegra, reported by 0-day builder.
v3: Include required headers, reported by Thierry.
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Thierry Reding <treding@nvidia.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drm_crtc.h | 3 ---
include/drm/drm_plane_helper.h | 5 +++++
2 files changed, 5 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c40070a92d6b..c3baaee09498 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -880,9 +880,6 @@ extern int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_plane *primary,
struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs);
-extern int drm_crtc_init(struct drm_device *dev,
- struct drm_crtc *crtc,
- const struct drm_crtc_funcs *funcs);
extern void drm_crtc_cleanup(struct drm_crtc *crtc);
extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index 52e6870534b2..fa60d19f91c0 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -25,6 +25,7 @@
#define DRM_PLANE_HELPER_H
#include <drm/drm_rect.h>
+#include <drm/drm_crtc.h>
/*
* Drivers that don't allow primary plane scaling may pass this macro in place
@@ -42,6 +43,10 @@
* planes.
*/
+extern int drm_crtc_init(struct drm_device *dev,
+ struct drm_crtc *crtc,
+ const struct drm_crtc_funcs *funcs);
+
extern int drm_plane_helper_check_update(struct drm_plane *plane,
struct drm_crtc *crtc,
struct drm_framebuffer *fb,
--
cgit v1.2.1
From 3bf0401cddc00e90bd07f24cbf3fed88be24c399 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 27 Oct 2014 16:54:27 +0100
Subject: drm: Pull drm_crtc.h into the kerneldoc template
While writing atomic docs I've noticed that I don't get any errors
for my screw-ups in drm_crtc.h. Fix this immediately.
This just does the bare minimum to get starts, lots of stuff isn't
properly documented yet unfortunately.
v2: Fix adjacent spelling error Sean noticed.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c3baaee09498..3a8060575628 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -142,8 +142,8 @@ struct drm_framebuffer_funcs {
int (*create_handle)(struct drm_framebuffer *fb,
struct drm_file *file_priv,
unsigned int *handle);
- /**
- * Optinal callback for the dirty fb ioctl.
+ /*
+ * Optional callback for the dirty fb ioctl.
*
* Userspace can notify the driver via this callback
* that a area of the framebuffer has changed and should
@@ -226,7 +226,7 @@ struct drm_plane;
struct drm_bridge;
/**
- * drm_crtc_funcs - control CRTCs for a given device
+ * struct drm_crtc_funcs - control CRTCs for a given device
* @save: save CRTC state
* @restore: restore CRTC state
* @reset: reset CRTC after state has been invalidated (e.g. resume)
@@ -290,7 +290,7 @@ struct drm_crtc_funcs {
};
/**
- * drm_crtc - central CRTC control structure
+ * struct drm_crtc - central CRTC control structure
* @dev: parent DRM device
* @head: list management
* @mutex: per-CRTC locking
@@ -322,7 +322,7 @@ struct drm_crtc {
struct device_node *port;
struct list_head head;
- /**
+ /*
* crtc mutex
*
* This provides a read lock for the overall crtc state (mode, dpms
@@ -377,7 +377,7 @@ struct drm_crtc {
/**
- * drm_connector_funcs - control connectors on a given device
+ * struct drm_connector_funcs - control connectors on a given device
* @dpms: set power state (see drm_crtc_funcs above)
* @save: save connector state
* @restore: restore connector state
@@ -414,7 +414,7 @@ struct drm_connector_funcs {
};
/**
- * drm_encoder_funcs - encoder controls
+ * struct drm_encoder_funcs - encoder controls
* @reset: reset state (e.g. at init or resume time)
* @destroy: cleanup and free associated data
*
@@ -428,7 +428,7 @@ struct drm_encoder_funcs {
#define DRM_CONNECTOR_MAX_ENCODER 3
/**
- * drm_encoder - central DRM encoder structure
+ * struct drm_encoder - central DRM encoder structure
* @dev: parent DRM device
* @head: list management
* @base: base KMS object
@@ -472,7 +472,7 @@ struct drm_encoder {
#define MAX_ELD_BYTES 128
/**
- * drm_connector - central DRM connector control structure
+ * struct drm_connector - central DRM connector control structure
* @dev: parent DRM device
* @kdev: kernel device for sysfs attributes
* @attr: sysfs attributes
@@ -566,7 +566,7 @@ struct drm_connector {
};
/**
- * drm_plane_funcs - driver plane control functions
+ * struct drm_plane_funcs - driver plane control functions
* @update_plane: update the plane configuration
* @disable_plane: shut down the plane
* @destroy: clean up plane resources
@@ -594,7 +594,7 @@ enum drm_plane_type {
};
/**
- * drm_plane - central DRM plane control structure
+ * struct drm_plane - central DRM plane control structure
* @dev: DRM device this plane belongs to
* @head: for list management
* @base: base mode object
@@ -632,7 +632,7 @@ struct drm_plane {
};
/**
- * drm_bridge_funcs - drm_bridge control functions
+ * struct drm_bridge_funcs - drm_bridge control functions
* @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge
* @disable: Called right before encoder prepare, disables the bridge
* @post_disable: Called right after encoder prepare, for lockstepped disable
@@ -656,7 +656,7 @@ struct drm_bridge_funcs {
};
/**
- * drm_bridge - central DRM bridge control structure
+ * struct drm_bridge - central DRM bridge control structure
* @dev: DRM device this bridge belongs to
* @head: list management
* @base: base mode object
@@ -674,7 +674,7 @@ struct drm_bridge {
};
/**
- * drm_mode_set - new values for a CRTC config change
+ * struct drm_mode_set - new values for a CRTC config change
* @head: list management
* @fb: framebuffer to use for new config
* @crtc: CRTC whose configuration we're about to change
--
cgit v1.2.1
From 2c0c33d41e0ecb46c37583a6179eeb1f16767296 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 27 Oct 2014 20:19:38 +0100
Subject: drm: fixup kerneldoc in drm_crtc.h
I've tried to cc all the people who have recently added new stuff
but forgotten to update documentation.
I've also decided not to bother documenting the massive property list
in struct drm_mode_config. If that beast keeps on growing we might want
to extract it into a separate structure which we won't document.
Cc: Thomas Wood <thomas.wood@intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drm_crtc.h | 51 +++++++++++++++++++++++++++++++++++---------------
1 file changed, 36 insertions(+), 15 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 3a8060575628..125bb7f290a1 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -231,6 +231,7 @@ struct drm_bridge;
* @restore: restore CRTC state
* @reset: reset CRTC after state has been invalidated (e.g. resume)
* @cursor_set: setup the cursor
+ * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set
* @cursor_move: move the cursor
* @gamma_set: specify color ramp for CRTC
* @destroy: deinit and free object
@@ -292,11 +293,14 @@ struct drm_crtc_funcs {
/**
* struct drm_crtc - central CRTC control structure
* @dev: parent DRM device
+ * @port: OF node used by drm_of_find_possible_crtcs()
* @head: list management
* @mutex: per-CRTC locking
* @base: base KMS object for ID tracking etc.
* @primary: primary plane for this CRTC
* @cursor: cursor plane for this CRTC
+ * @cursor_x: current x position of the cursor, used for universal cursor planes
+ * @cursor_y: current y position of the cursor, used for universal cursor planes
* @enabled: is this CRTC enabled?
* @mode: current mode timings
* @hwmode: mode timings as programmed to hw regs
@@ -309,10 +313,12 @@ struct drm_crtc_funcs {
* @gamma_size: size of gamma ramp
* @gamma_store: gamma ramp values
* @framedur_ns: precise frame timing
- * @framedur_ns: precise line timing
+ * @linedur_ns: precise line timing
* @pixeldur_ns: precise pixel timing
* @helper_private: mid-layer private data
* @properties: property tracking for this CRTC
+ * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for
+ * legacy ioctls
*
* Each CRTC may have one or more connectors associated with it. This structure
* allows the CRTC to be controlled.
@@ -483,6 +489,7 @@ struct drm_encoder {
* @connector_type_id: index into connector type enum
* @interlace_allowed: can this connector handle interlaced modes?
* @doublescan_allowed: can this connector handle doublescan?
+ * @stereo_allowed: can this connector handle stereo modes?
* @modes: modes available on this connector (from fill_modes() + user)
* @status: one of the drm_connector_status enums (connected, not, or unknown)
* @probed_modes: list of modes derived directly from the display
@@ -490,10 +497,13 @@ struct drm_encoder {
* @funcs: connector control functions
* @edid_blob_ptr: DRM property containing EDID if present
* @properties: property tracking for this connector
+ * @path_blob_ptr: DRM blob property data for the DP MST path property
* @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
* @dpms: current dpms state
* @helper_private: mid-layer private data
+ * @cmdline_mode: mode line parsed from the kernel cmdline for this connector
* @force: a %DRM_FORCE_<foo> state for forced mode sets
+ * @override_edid: has the EDID been overwritten through debugfs for testing?
* @encoder_ids: valid encoders for this connector
* @encoder: encoder driving this connector, if any
* @eld: EDID-like data, if present
@@ -503,6 +513,8 @@ struct drm_encoder {
* @video_latency: video latency info from ELD, if found
* @audio_latency: audio latency info from ELD, if found
* @null_edid_counter: track sinks that give us all zeros for the EDID
+ * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
+ * @debugfs_entry: debugfs directory for this connector
*
* Each connector may be connected to one or more CRTCs, or may be clonable by
* another connector if they can share a CRTC. Each connector also has a specific
@@ -570,6 +582,7 @@ struct drm_connector {
* @update_plane: update the plane configuration
* @disable_plane: shut down the plane
* @destroy: clean up plane resources
+ * @reset: reset plane after state has been invalidated (e.g. resume)
* @set_property: called when a property is changed
*/
struct drm_plane_funcs {
@@ -603,6 +616,8 @@ enum drm_plane_type {
* @format_count: number of formats supported
* @crtc: currently bound CRTC
* @fb: currently bound fb
+ * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by
+ * drm_mode_set_config_internal() to implement correct refcounting.
* @funcs: helper functions
* @properties: property tracking for this plane
* @type: type of plane (overlay, primary, cursor)
@@ -620,8 +635,6 @@ struct drm_plane {
struct drm_crtc *crtc;
struct drm_framebuffer *fb;
- /* Temporary tracking of the old fb while a modeset is ongoing. Used
- * by drm_mode_set_config_internal to implement correct refcounting. */
struct drm_framebuffer *old_fb;
const struct drm_plane_funcs *funcs;
@@ -675,7 +688,6 @@ struct drm_bridge {
/**
* struct drm_mode_set - new values for a CRTC config change
- * @head: list management
* @fb: framebuffer to use for new config
* @crtc: CRTC whose configuration we're about to change
* @mode: mode timings to use
@@ -717,10 +729,11 @@ struct drm_mode_config_funcs {
};
/**
- * drm_mode_group - group of mode setting resources for potential sub-grouping
+ * struct drm_mode_group - group of mode setting resources for potential sub-grouping
* @num_crtcs: CRTC count
* @num_encoders: encoder count
* @num_connectors: connector count
+ * @num_bridges: bridge count
* @id_list: list of KMS object IDs in this group
*
* Currently this simply tracks the global mode setting state. But in the
@@ -740,10 +753,14 @@ struct drm_mode_group {
};
/**
- * drm_mode_config - Mode configuration control structure
+ * struct drm_mode_config - Mode configuration control structure
* @mutex: mutex protecting KMS related lists and structures
+ * @connection_mutex: ww mutex protecting connector state and routing
+ * @acquire_ctx: global implicit acquire context used by atomic drivers for
+ * legacy ioctls
* @idr_mutex: mutex for KMS ID allocation and management
* @crtc_idr: main KMS ID tracking object
+ * @fb_lock: mutex to protect fb state and lists
* @num_fb: number of fbs available
* @fb_list: list of framebuffers available
* @num_connector: number of connectors on this device
@@ -752,17 +769,28 @@ struct drm_mode_group {
* @bridge_list: list of bridge objects
* @num_encoder: number of encoders on this device
* @encoder_list: list of encoder objects
+ * @num_overlay_plane: number of overlay planes on this device
+ * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
+ * @plane_list: list of plane objects
* @num_crtc: number of CRTCs on this device
* @crtc_list: list of CRTC objects
+ * @property_list: list of property objects
* @min_width: minimum pixel width on this device
* @min_height: minimum pixel height on this device
* @max_width: maximum pixel width on this device
* @max_height: maximum pixel height on this device
* @funcs: core driver provided mode setting functions
* @fb_base: base address of the framebuffer
- * @poll_enabled: track polling status for this device
+ * @poll_enabled: track polling support for this device
+ * @poll_running: track polling status for this device
* @output_poll_work: delayed work for polling in process context
+ * @property_blob_list: list of all the blob property objects
* @*_property: core property tracking
+ * @preferred_depth: preferred RBG pixel depth, used by fb helpers
+ * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
+ * @async_page_flip: does this device support async flips on the primary plane?
+ * @cursor_width: hint to userspace for max cursor width
+ * @cursor_height: hint to userspace for max cursor height
*
* Core mode resource tracking structure. All CRTC, encoders, and connectors
* enumerated by the driver are added here, as are global properties. Some
@@ -776,14 +804,7 @@ struct drm_mode_config {
struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
/* this is limited to one for now */
-
- /**
- * fb_lock - mutex to protect fb state
- *
- * Besides the global fb list his also protects the fbs list in the
- * file_priv
- */
- struct mutex fb_lock;
+ struct mutex fb_lock; /* proctects global and per-file fb lists */
int num_fb;
struct list_head fb_list;
--
cgit v1.2.1
From b3d208f96d6bb21247108a956dead6a028d5cdb2 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 23 Oct 2014 19:48:09 -0700
Subject: f2fs: revisit inline_data to avoid data races and potential bugs
This patch simplifies the inline_data usage with the following rule.
1. inline_data is set during the file creation.
2. If new data is requested to be written ranges out of inline_data,
f2fs converts that inode permanently.
3. There is no cases which converts non-inline_data inode to inline_data.
4. The inline_data flag should be changed under inode page lock.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
include/linux/f2fs_fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 63f8303b79ba..cc1064f3153f 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -172,6 +172,7 @@ struct f2fs_extent {
#define F2FS_INLINE_XATTR 0x01 /* file inline xattr flag */
#define F2FS_INLINE_DATA 0x02 /* file inline data flag */
#define F2FS_INLINE_DENTRY 0x04 /* file inline dentry flag */
+#define F2FS_DATA_EXIST 0x08 /* file inline data exist flag */
#define MAX_INLINE_DATA (sizeof(__le32) * (DEF_ADDRS_PER_INODE - \
F2FS_INLINE_XATTR_ADDRS - 1))
--
cgit v1.2.1
From be138b7b0d4cbfb8a927d9bc333ceffee9908c23 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 30 Oct 2014 19:01:10 -0700
Subject: f2fs: remove unnecessary macro
Let's remove unused macro.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
include/linux/f2fs_fs.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index cc1064f3153f..87f14e90e984 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -177,10 +177,6 @@ struct f2fs_extent {
#define MAX_INLINE_DATA (sizeof(__le32) * (DEF_ADDRS_PER_INODE - \
F2FS_INLINE_XATTR_ADDRS - 1))
-#define INLINE_DATA_OFFSET (PAGE_CACHE_SIZE - sizeof(struct node_footer) -\
- sizeof(__le32) * (DEF_ADDRS_PER_INODE + \
- DEF_NIDS_PER_INODE - 1))
-
struct f2fs_inode {
__le16 i_mode; /* file mode */
__u8 i_advise; /* file hints */
--
cgit v1.2.1
From e1ccbbc9d5aa01a6c1c9c78acea6515db4f1be71 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Tue, 14 Oct 2014 16:34:47 +0200
Subject: efi: dmi: add support for SMBIOS 3.0 UEFI configuration table
This adds support to the UEFI side for detecting the presence of
a SMBIOS 3.0 64-bit entry point. This allows the actual SMBIOS
structure table to reside at a physical offset over 4 GB, which
cannot be supported by the legacy SMBIOS 32-bit entry point.
Since the firmware can legally provide both entry points, store
the SMBIOS 3.0 entry point in a separate variable, and let the
DMI decoding layer decide which one will be used.
Tested-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
include/linux/efi.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 0949f9c7e872..0238d612750e 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -547,6 +547,9 @@ void efi_native_runtime_setup(void);
#define SMBIOS_TABLE_GUID \
EFI_GUID( 0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
+#define SMBIOS3_TABLE_GUID \
+ EFI_GUID( 0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94 )
+
#define SAL_SYSTEM_TABLE_GUID \
EFI_GUID( 0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
@@ -810,7 +813,8 @@ extern struct efi {
unsigned long mps; /* MPS table */
unsigned long acpi; /* ACPI table (IA64 ext 0.71) */
unsigned long acpi20; /* ACPI table (ACPI 2.0) */
- unsigned long smbios; /* SM BIOS table */
+ unsigned long smbios; /* SMBIOS table (32 bit entry point) */
+ unsigned long smbios3; /* SMBIOS table (64 bit entry point) */
unsigned long sal_systab; /* SAL system table */
unsigned long boot_info; /* boot info table */
unsigned long hcdp; /* HCDP table */
--
cgit v1.2.1
From 6af91949ab7462d0917f436820c263ae9a89322c Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Wed, 6 Aug 2014 18:16:58 -0700
Subject: mtd: m25p80: drop wait-till-ready checks
spi-nor.c should be taking care of these now.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
---
include/linux/mtd/spi-nor.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 2f27713b3ae1..d691025d9b00 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -116,6 +116,10 @@ enum spi_nor_ops {
SPI_NOR_OPS_UNLOCK,
};
+enum spi_nor_option_flags {
+ SNOR_F_USE_FSR = BIT(0),
+};
+
/**
* struct spi_nor - Structure for defining a the SPI NOR layer
* @mtd: point to a mtd_info structure
@@ -129,6 +133,7 @@ enum spi_nor_ops {
* @program_opcode: the program opcode
* @flash_read: the mode of the read
* @sst_write_second: used by the SST write operation
+ * @flags: flag options for the current SPI-NOR (SNOR_F_*)
* @cfg: used by the read_xfer/write_xfer
* @cmd_buf: used by the write_reg
* @prepare: [OPTIONAL] do some preparations for the
@@ -158,6 +163,7 @@ struct spi_nor {
u8 program_opcode;
enum read_mode flash_read;
bool sst_write_second;
+ u32 flags;
struct spi_nor_xfer_cfg cfg;
u8 cmd_buf[SPI_NOR_MAX_CMD_SIZE];
--
cgit v1.2.1
From b94ed087744c5bc287d2ed706b476693df07151d Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Wed, 6 Aug 2014 18:17:00 -0700
Subject: mtd: spi-nor: drop replaceable wait-till-ready function pointer
We don't need to expose a 'wait-till-ready' interface to drivers. Status
register polling should be handled by the core spi-nor.c library, and as
of now, I see no need to provide a special driver-specific hook for it.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
---
include/linux/mtd/spi-nor.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index d691025d9b00..63aeccf9ddc8 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -144,7 +144,6 @@ enum spi_nor_option_flags {
* @write_xfer: [OPTIONAL] the writefundamental primitive
* @read_reg: [DRIVER-SPECIFIC] read out the register
* @write_reg: [DRIVER-SPECIFIC] write data to the register
- * @wait_till_ready: [REPLACEABLE] wait till the NOR becomes ready
* @read: [DRIVER-SPECIFIC] read data from the SPI NOR
* @write: [DRIVER-SPECIFIC] write data to the SPI NOR
* @erase: [DRIVER-SPECIFIC] erase a sector of the SPI NOR
@@ -176,7 +175,6 @@ struct spi_nor {
int (*read_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len);
int (*write_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len,
int write_enable);
- int (*wait_till_ready)(struct spi_nor *nor);
int (*read)(struct spi_nor *nor, loff_t from,
size_t len, size_t *retlen, u_char *read_buf);
--
cgit v1.2.1
From e9cf6194ab0cdb8f40f1eca7b230751c2289557e Mon Sep 17 00:00:00 2001
From: Todd Previte <tprevite@gmail.com>
Date: Tue, 4 Nov 2014 15:17:35 -0700
Subject: drm/dp: Add counters in the drm_dp_aux struct for I2C NACKs and
DEFERs
These counters are used for Displayort compliance testing to detect error
conditions when executing tests 4.2.2.4 and 4.2.2.5 in the Displayport Link
CTS specificaiton. They determine whether to use the preferred/requested
mode or the failsafe mode during these tests.
V2:
- Addressed previous review feedback
- Updated commit message
- Changed from uint8_t to uint32_t
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Todd Previte <tprevite@gmail.com>
[danvet: s/uint32_t/unsigned/ for clearer intent. Also drop the i915
from the subject, it's all core stuff.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_dp_helper.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index afebb08eee3a..6041ad8c2f2d 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -530,6 +530,7 @@ struct drm_dp_aux {
struct mutex hw_mutex;
ssize_t (*transfer)(struct drm_dp_aux *aux,
struct drm_dp_aux_msg *msg);
+ unsigned i2c_nack_count, i2c_defer_count;
};
ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
--
cgit v1.2.1
From babc94936b7a48f0411c85a63074c0e378b55761 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Tue, 28 Oct 2014 16:20:47 +0200
Subject: drm/edid: add #defines and helpers for ELD
In the interest of reducing magic numbers and having to cross check with
the specs all the time.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_edid.h | 102 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 102 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index b96031d947a0..c2f1bfa22010 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -207,6 +207,61 @@ struct detailed_timing {
#define DRM_EDID_HDMI_DC_30 (1 << 4)
#define DRM_EDID_HDMI_DC_Y444 (1 << 3)
+/* ELD Header Block */
+#define DRM_ELD_HEADER_BLOCK_SIZE 4
+
+#define DRM_ELD_VER 0
+# define DRM_ELD_VER_SHIFT 3
+# define DRM_ELD_VER_MASK (0x1f << 3)
+
+#define DRM_ELD_BASELINE_ELD_LEN 2 /* in dwords! */
+
+/* ELD Baseline Block for ELD_Ver == 2 */
+#define DRM_ELD_CEA_EDID_VER_MNL 4
+# define DRM_ELD_CEA_EDID_VER_SHIFT 5
+# define DRM_ELD_CEA_EDID_VER_MASK (7 << 5)
+# define DRM_ELD_CEA_EDID_VER_NONE (0 << 5)
+# define DRM_ELD_CEA_EDID_VER_CEA861 (1 << 5)
+# define DRM_ELD_CEA_EDID_VER_CEA861A (2 << 5)
+# define DRM_ELD_CEA_EDID_VER_CEA861BCD (3 << 5)
+# define DRM_ELD_MNL_SHIFT 0
+# define DRM_ELD_MNL_MASK (0x1f << 0)
+
+#define DRM_ELD_SAD_COUNT_CONN_TYPE 5
+# define DRM_ELD_SAD_COUNT_SHIFT 4
+# define DRM_ELD_SAD_COUNT_MASK (0xf << 4)
+# define DRM_ELD_CONN_TYPE_SHIFT 2
+# define DRM_ELD_CONN_TYPE_MASK (3 << 2)
+# define DRM_ELD_CONN_TYPE_HDMI (0 << 2)
+# define DRM_ELD_CONN_TYPE_DP (1 << 2)
+# define DRM_ELD_SUPPORTS_AI (1 << 1)
+# define DRM_ELD_SUPPORTS_HDCP (1 << 0)
+
+#define DRM_ELD_AUD_SYNCH_DELAY 6 /* in units of 2 ms */
+# define DRM_ELD_AUD_SYNCH_DELAY_MAX 0xfa /* 500 ms */
+
+#define DRM_ELD_SPEAKER 7
+# define DRM_ELD_SPEAKER_RLRC (1 << 6)
+# define DRM_ELD_SPEAKER_FLRC (1 << 5)
+# define DRM_ELD_SPEAKER_RC (1 << 4)
+# define DRM_ELD_SPEAKER_RLR (1 << 3)
+# define DRM_ELD_SPEAKER_FC (1 << 2)
+# define DRM_ELD_SPEAKER_LFE (1 << 1)
+# define DRM_ELD_SPEAKER_FLR (1 << 0)
+
+#define DRM_ELD_PORT_ID 8 /* offsets 8..15 inclusive */
+# define DRM_ELD_PORT_ID_LEN 8
+
+#define DRM_ELD_MANUFACTURER_NAME0 16
+#define DRM_ELD_MANUFACTURER_NAME1 17
+
+#define DRM_ELD_PRODUCT_CODE0 18
+#define DRM_ELD_PRODUCT_CODE1 19
+
+#define DRM_ELD_MONITOR_NAME_STRING 20 /* offsets 20..(20+mnl-1) inclusive */
+
+#define DRM_ELD_CEA_SAD(mnl, sad) (20 + (mnl) + 3 * (sad))
+
struct edid {
u8 header[8];
/* Vendor & product info */
@@ -279,4 +334,51 @@ int
drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
const struct drm_display_mode *mode);
+/**
+ * drm_eld_mnl - Get ELD monitor name length in bytes.
+ * @eld: pointer to an eld memory structure with mnl set
+ */
+static inline int drm_eld_mnl(const uint8_t *eld)
+{
+ return (eld[DRM_ELD_CEA_EDID_VER_MNL] & DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
+}
+
+/**
+ * drm_eld_sad_count - Get ELD SAD count.
+ * @eld: pointer to an eld memory structure with sad_count set
+ */
+static inline int drm_eld_sad_count(const uint8_t *eld)
+{
+ return (eld[DRM_ELD_SAD_COUNT_CONN_TYPE] & DRM_ELD_SAD_COUNT_MASK) >>
+ DRM_ELD_SAD_COUNT_SHIFT;
+}
+
+/**
+ * drm_eld_calc_baseline_block_size - Calculate baseline block size in bytes
+ * @eld: pointer to an eld memory structure with mnl and sad_count set
+ *
+ * This is a helper for determining the payload size of the baseline block, in
+ * bytes, for e.g. setting the Baseline_ELD_Len field in the ELD header block.
+ */
+static inline int drm_eld_calc_baseline_block_size(const uint8_t *eld)
+{
+ return DRM_ELD_MONITOR_NAME_STRING - DRM_ELD_HEADER_BLOCK_SIZE +
+ drm_eld_mnl(eld) + drm_eld_sad_count(eld) * 3;
+}
+
+/**
+ * drm_eld_size - Get ELD size in bytes
+ * @eld: pointer to a complete eld memory structure
+ *
+ * The returned value does not include the vendor block. It's vendor specific,
+ * and comprises of the remaining bytes in the ELD memory buffer after
+ * drm_eld_size() bytes of header and baseline block.
+ *
+ * The returned value is guaranteed to be a multiple of 4.
+ */
+static inline int drm_eld_size(const uint8_t *eld)
+{
+ return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4;
+}
+
#endif /* __DRM_EDID_H__ */
--
cgit v1.2.1
From 1cbd772d9aaf6c697935cb855860b66cebacf950 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 5 Nov 2014 13:08:20 +0100
Subject: libsas: use ata_dev_classify()
Use the ata device class from libata in libsas instead of checking
the supported command set and switch to using ata_dev_classify()
instead of our own method.
Cc: Tejun Heo <tj@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/scsi/libsas.h | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index ef7872c20da9..8528a09a00c4 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -161,17 +161,12 @@ struct expander_device {
};
/* ---------- SATA device ---------- */
-enum ata_command_set {
- ATA_COMMAND_SET = 0,
- ATAPI_COMMAND_SET = 1,
-};
-
#define ATA_RESP_FIS_SIZE 24
struct sata_device {
- enum ata_command_set command_set;
- struct smp_resp rps_resp; /* report_phy_sata_resp */
- u8 port_no; /* port number, if this is a PM (Port) */
+ unsigned int class;
+ struct smp_resp rps_resp; /* report_phy_sata_resp */
+ u8 port_no; /* port number, if this is a PM (Port) */
struct ata_port *ap;
struct ata_host ata_host;
--
cgit v1.2.1
From 9162c6579bf90b3f5ddb7e3a6c6fa946c1b4cbeb Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 5 Nov 2014 13:08:21 +0100
Subject: libata: Implement ATA_DEV_ZAC
Add new ATA device type for ZAC devices.
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/libata.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/libata.h b/include/linux/libata.h
index bd5fefeaf548..a26daea7f5eb 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -191,7 +191,8 @@ enum {
ATA_DEV_PMP_UNSUP = 6, /* SATA port multiplier (unsupported) */
ATA_DEV_SEMB = 7, /* SEMB */
ATA_DEV_SEMB_UNSUP = 8, /* SEMB (unsupported) */
- ATA_DEV_NONE = 9, /* no device */
+ ATA_DEV_ZAC = 9, /* ZAC device */
+ ATA_DEV_NONE = 10, /* no device */
/* struct ata_link flags */
ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */
@@ -1491,7 +1492,8 @@ static inline unsigned int ata_tag_internal(unsigned int tag)
static inline unsigned int ata_class_enabled(unsigned int class)
{
return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI ||
- class == ATA_DEV_PMP || class == ATA_DEV_SEMB;
+ class == ATA_DEV_PMP || class == ATA_DEV_SEMB ||
+ class == ATA_DEV_ZAC;
}
static inline unsigned int ata_class_disabled(unsigned int class)
--
cgit v1.2.1
From b7a1aafda61c27d54230ce7c8a4806a749ecf2f3 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 27 Oct 2014 20:37:37 +0100
Subject: drm/modeset_lock: document trylock_only in kerneldoc
I've forgotten to do this in:
commit cb597bb3a2fbfc871cc1c703fb330d247bd21394
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun Jul 27 19:09:33 2014 +0200
drm: trylock modest locking for fbdev panics
Oops, fix this asap.
In my defense kerneldoc is really awful and there's no way it can pick
up structured comments per struct member. Which means we need both
since people won't scroll up even a few lines.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drm_modeset_lock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index 75a5c45e21c7..28931a23d96c 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -33,6 +33,7 @@ struct drm_modeset_lock;
* @ww_ctx: base acquire ctx
* @contended: used internally for -EDEADLK handling
* @locked: list of held locks
+ * @trylock_only: trylock mode used in atomic contexts/panic notifiers
*
* Each thread competing for a set of locks must use one acquire
* ctx. And if any lock fxn returns -EDEADLK, it must backoff and
--
cgit v1.2.1
From 144ecb97cd57d2a61cc455730a3337e413499cae Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 27 Oct 2014 20:28:44 +0100
Subject: drm: Add atomic driver interface definitions for objects
Heavily based upon Rob Clark's atomic series.
- Dropped the connector state from the crtc state, instead opting for a
full-blown connector state. The only thing it has is the desired
crtc, but drivers which have connector properties have now a
data-structure to subclass.
- Rename create_state to duplicate_state. Especially for legacy ioctls
we want updates on top of existing state, so we need a way to get at
the current state. We need to be careful to clear the backpointers
to the global state correctly though.
- Drop property values. Drivers with properties simply need to
subclass the datastructures and track the decoded values in there. I
also think that common properties (like rotation) should be decoded
and stored in the core structures.
- Create a new set of ->atomic_set_prop functions, for smoother
transitions from legacy to atomic operations.
- Pass the ->atomic_set_prop ioctl the right structure to avoid
chasing pointers in drivers.
- Drop temporary boolean state for now until we resurrect them with
the helper functions.
- Drop invert_dimensions. For now we don't need any checking since
that's done by the higher-level legacy ioctls. But even then we
should also add rotation/flip tracking to the core drm_crtc_state,
not just whether the dimensions are inverted.
- Track crtc state with an enable/disable. That's equivalent to
mode_valid, but a bit clearer that it means the entire crtc.
The global interface will follow in subsequent patches.
v2: We need to allow drivers to somehow set up the initial state and
clear it on resume. So add a plane->reset callback for that. Helpers
will be provided with default behaviour for all these.
v3: Split out the plane->reset into a separate patch.
v4: Improve kerneldoc in drm_crtc.h
v5: Remove unused inline functions for handling state objects, those
callbacks are now mandatory for full atomic support.
v6: Fix commit message nit Sean noticed.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 107 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 107 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 125bb7f290a1..3554868dbf09 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -224,6 +224,25 @@ struct drm_encoder;
struct drm_pending_vblank_event;
struct drm_plane;
struct drm_bridge;
+struct drm_atomic_state;
+
+/**
+ * struct drm_crtc_state - mutable crtc state
+ * @enable: whether the CRTC should be enabled, gates all other state
+ * @mode: current mode timings
+ * @event: optional pointer to a DRM event to signal upon completion of the
+ * state update
+ * @state: backpointer to global drm_atomic_state
+ */
+struct drm_crtc_state {
+ bool enable : 1;
+
+ struct drm_display_mode mode;
+
+ struct drm_pending_vblank_event *event;
+
+ struct drm_atomic_state *state;
+};
/**
* struct drm_crtc_funcs - control CRTCs for a given device
@@ -238,6 +257,9 @@ struct drm_bridge;
* @set_property: called when a property is changed
* @set_config: apply a new CRTC configuration
* @page_flip: initiate a page flip
+ * @atomic_duplicate_state: duplicate the atomic state for this CRTC
+ * @atomic_destroy_state: destroy an atomic state for this CRTC
+ * @atomic_set_property: set a property on an atomic state for this CRTC
*
* The drm_crtc_funcs structure is the central CRTC management structure
* in the DRM. Each CRTC controls one or more connectors (note that the name
@@ -288,6 +310,15 @@ struct drm_crtc_funcs {
int (*set_property)(struct drm_crtc *crtc,
struct drm_property *property, uint64_t val);
+
+ /* atomic update handling */
+ struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc);
+ void (*atomic_destroy_state)(struct drm_crtc *crtc,
+ struct drm_crtc_state *cstate);
+ int (*atomic_set_property)(struct drm_crtc *crtc,
+ struct drm_crtc_state *state,
+ struct drm_property *property,
+ uint64_t val);
};
/**
@@ -317,6 +348,7 @@ struct drm_crtc_funcs {
* @pixeldur_ns: precise pixel timing
* @helper_private: mid-layer private data
* @properties: property tracking for this CRTC
+ * @state: current atomic state for this CRTC
* @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for
* legacy ioctls
*
@@ -374,6 +406,8 @@ struct drm_crtc {
struct drm_object_properties properties;
+ struct drm_crtc_state *state;
+
/*
* For legacy crtc ioctls so that atomic drivers can get at the locking
* acquire context.
@@ -381,6 +415,16 @@ struct drm_crtc {
struct drm_modeset_acquire_ctx *acquire_ctx;
};
+/**
+ * struct drm_connector_state - mutable connector state
+ * @crtc: crtc to connect connector to, NULL if disabled
+ * @state: backpointer to global drm_atomic_state
+ */
+struct drm_connector_state {
+ struct drm_crtc *crtc;
+
+ struct drm_atomic_state *state;
+};
/**
* struct drm_connector_funcs - control connectors on a given device
@@ -393,6 +437,10 @@ struct drm_crtc {
* @set_property: property for this connector may need an update
* @destroy: make object go away
* @force: notify the driver that the connector is forced on
+ * @atomic_duplicate_state: duplicate the atomic state for this connector
+ * @atomic_destroy_state: destroy an atomic state for this connector
+ * @atomic_set_property: set a property on an atomic state for this connector
+ *
*
* Each CRTC may have one or more connectors attached to it. The functions
* below allow the core DRM code to control connectors, enumerate available modes,
@@ -417,6 +465,15 @@ struct drm_connector_funcs {
uint64_t val);
void (*destroy)(struct drm_connector *connector);
void (*force)(struct drm_connector *connector);
+
+ /* atomic update handling */
+ struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
+ void (*atomic_destroy_state)(struct drm_connector *connector,
+ struct drm_connector_state *cstate);
+ int (*atomic_set_property)(struct drm_connector *connector,
+ struct drm_connector_state *state,
+ struct drm_property *property,
+ uint64_t val);
};
/**
@@ -515,6 +572,7 @@ struct drm_encoder {
* @null_edid_counter: track sinks that give us all zeros for the EDID
* @bad_edid_counter: track sinks that give us an EDID with invalid checksum
* @debugfs_entry: debugfs directory for this connector
+ * @state: current atomic state for this connector
*
* Each connector may be connected to one or more CRTCs, or may be clonable by
* another connector if they can share a CRTC. Each connector also has a specific
@@ -575,8 +633,42 @@ struct drm_connector {
unsigned bad_edid_counter;
struct dentry *debugfs_entry;
+
+ struct drm_connector_state *state;
+};
+
+/**
+ * struct drm_plane_state - mutable plane state
+ * @crtc: currently bound CRTC, NULL if disabled
+ * @fb: currently bound fb
+ * @crtc_x: left position of visible portion of plane on crtc
+ * @crtc_y: upper position of visible portion of plane on crtc
+ * @crtc_w: width of visible portion of plane on crtc
+ * @crtc_h: height of visible portion of plane on crtc
+ * @src_x: left position of visible portion of plane within
+ * plane (in 16.16)
+ * @src_y: upper position of visible portion of plane within
+ * plane (in 16.16)
+ * @src_w: width of visible portion of plane (in 16.16)
+ * @src_h: height of visible portion of plane (in 16.16)
+ * @state: backpointer to global drm_atomic_state
+ */
+struct drm_plane_state {
+ struct drm_crtc *crtc;
+ struct drm_framebuffer *fb;
+
+ /* Signed dest location allows it to be partially off screen */
+ int32_t crtc_x, crtc_y;
+ uint32_t crtc_w, crtc_h;
+
+ /* Source values are 16.16 fixed point */
+ uint32_t src_x, src_y;
+ uint32_t src_h, src_w;
+
+ struct drm_atomic_state *state;
};
+
/**
* struct drm_plane_funcs - driver plane control functions
* @update_plane: update the plane configuration
@@ -584,6 +676,9 @@ struct drm_connector {
* @destroy: clean up plane resources
* @reset: reset plane after state has been invalidated (e.g. resume)
* @set_property: called when a property is changed
+ * @atomic_duplicate_state: duplicate the atomic state for this plane
+ * @atomic_destroy_state: destroy an atomic state for this plane
+ * @atomic_set_property: set a property on an atomic state for this plane
*/
struct drm_plane_funcs {
int (*update_plane)(struct drm_plane *plane,
@@ -598,6 +693,15 @@ struct drm_plane_funcs {
int (*set_property)(struct drm_plane *plane,
struct drm_property *property, uint64_t val);
+
+ /* atomic update handling */
+ struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane);
+ void (*atomic_destroy_state)(struct drm_plane *plane,
+ struct drm_plane_state *cstate);
+ int (*atomic_set_property)(struct drm_plane *plane,
+ struct drm_plane_state *state,
+ struct drm_property *property,
+ uint64_t val);
};
enum drm_plane_type {
@@ -621,6 +725,7 @@ enum drm_plane_type {
* @funcs: helper functions
* @properties: property tracking for this plane
* @type: type of plane (overlay, primary, cursor)
+ * @state: current atomic state for this plane
*/
struct drm_plane {
struct drm_device *dev;
@@ -642,6 +747,8 @@ struct drm_plane {
struct drm_object_properties properties;
enum drm_plane_type type;
+
+ struct drm_plane_state *state;
};
/**
--
cgit v1.2.1
From cc4ceb484b37b9369e0d4e8682b7ae1849ae4579 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri, 25 Jul 2014 21:30:38 +0200
Subject: drm: Global atomic state handling
Some differences compared to Rob's patches again:
- Dropped the committed and checked booleans. Checking will be
internally enforced by always calling ->atomic_check before
->atomic_commit. And async handling needs to be solved differently
because the current scheme completely side-steps ww mutex deadlock
avoidance (and so either reinvents a new deadlock avoidance wheel or
like the current code just deadlocks).
- State for connectors needed to be added, since now they have a
full-blown drm_connector_state (so that drivers have something to
attach their own stuff to).
- Refcounting is gone. I plane to solve async updates differently,
since the lock-passing scheme doesn't cut it (since it abuses ww
mutexes). Essentially what we need for async is a simple ownership
transfer from the caller to the driver. That doesn't need full-blown
refcounting.
- The acquire ctx is a pointer. Real atomic callers should have that
on their stack, legacy entry points need to put the right one
(obtained by drm_modeset_legacy_acuire_ctx) in there.
- I've dropped all hooks except check/commit. All the begin/end
handling is done by core functions and is the same.
- commit/check are just thin wrappers that ensure that ->check is
always called.
- To help out with locking in the legacy implementations I've added a
helper to just grab all locks in the backoff case.
v2: Add notices that check/commit can fail with EDEADLK.
v3:
- More consistent naming for state_alloc.
- Add state_clear which is needed for backoff and retry.
v4: Planes/connectors can switch between crtcs, and we need to be
careful that we grab the state (and locks) for both the old and new
crtc. Improve the interface functions to ensure this.
v5: Add functions to grab affected connectors for a crtc and to recompute
the crtc->enable state. This is useful for both helper and atomic ioctl
code when e.g. removing a connector.
v6: Squash in fixup from Fengguang to use ERR_CAST.
v7: Add debug output.
v8: Make checkpatch happy about kcalloc argument ordering.
v9: Improve kerneldoc in drm_crtc.h
v10:
- Fix another kcalloc argument misorder I've missed.
- More polish for kerneldoc.
v11: Clarify the ownership rules for the state object. The new rule is
that a successful drm_atomic_commit (whether synchronous or asnyc)
always inherits the state and is responsible for the clean-up. That
way async and sync ->commit functions are more similar.
v12: A few bugfixes:
- Assign state->state pointers correctly when grabbing state objects -
we need to link them up with the global state.
- Handle a NULL crtc in set_crtc_for_plane to simplify code flow a bit
for the callers of this function.
v13: Review from Sean:
- kerneldoc spelling fixes
- Don't overallocate states->planes.
- Handle NULL crtc in set_crtc_for_connector.
v14: Sprinkle __must_check over all functions which do wait/wound
locking to make sure callers don't forget this. Since I have ;-)
v15: Be more explicit in the kerneldoc when functions can return
-EDEADLK what to do. And that every other -errno is fatal.
v16: Indent with tabs instead of space, spotted by Ander.
v17: Review from Thierry, small kerneldoc and other naming polish.
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic.h | 65 ++++++++++++++++++++++++++++++++++++++++++++++++
include/drm/drm_crtc.h | 50 +++++++++++++++++++++++++++++++------
2 files changed, 107 insertions(+), 8 deletions(-)
create mode 100644 include/drm/drm_atomic.h
(limited to 'include')
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
new file mode 100644
index 000000000000..5bb15f550c42
--- /dev/null
+++ b/include/drm/drm_atomic.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2014 Red Hat
+ * Copyright (C) 2014 Intel Corp.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Rob Clark <robdclark@gmail.com>
+ * Daniel Vetter <daniel.vetter@ffwll.ch>
+ */
+
+#ifndef DRM_ATOMIC_H_
+#define DRM_ATOMIC_H_
+
+struct drm_atomic_state * __must_check
+drm_atomic_state_alloc(struct drm_device *dev);
+void drm_atomic_state_clear(struct drm_atomic_state *state);
+void drm_atomic_state_free(struct drm_atomic_state *state);
+
+struct drm_crtc_state * __must_check
+drm_atomic_get_crtc_state(struct drm_atomic_state *state,
+ struct drm_crtc *crtc);
+struct drm_plane_state * __must_check
+drm_atomic_get_plane_state(struct drm_atomic_state *state,
+ struct drm_plane *plane);
+struct drm_connector_state * __must_check
+drm_atomic_get_connector_state(struct drm_atomic_state *state,
+ struct drm_connector *connector);
+
+int __must_check
+drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state,
+ struct drm_crtc *crtc);
+int __must_check
+drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state,
+ struct drm_crtc *crtc);
+int __must_check
+drm_atomic_add_affected_connectors(struct drm_atomic_state *state,
+ struct drm_crtc *crtc);
+int
+drm_atomic_connectors_for_crtc(struct drm_atomic_state *state,
+ struct drm_crtc *crtc);
+
+void drm_atomic_legacy_backoff(struct drm_atomic_state *state);
+
+int __must_check drm_atomic_check_only(struct drm_atomic_state *state);
+int __must_check drm_atomic_commit(struct drm_atomic_state *state);
+int __must_check drm_atomic_async_commit(struct drm_atomic_state *state);
+
+#endif /* DRM_ATOMIC_H_ */
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 3554868dbf09..c7a3400173a8 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -227,7 +227,7 @@ struct drm_bridge;
struct drm_atomic_state;
/**
- * struct drm_crtc_state - mutable crtc state
+ * struct drm_crtc_state - mutable CRTC state
* @enable: whether the CRTC should be enabled, gates all other state
* @mode: current mode timings
* @event: optional pointer to a DRM event to signal upon completion of the
@@ -235,7 +235,7 @@ struct drm_atomic_state;
* @state: backpointer to global drm_atomic_state
*/
struct drm_crtc_state {
- bool enable : 1;
+ bool enable;
struct drm_display_mode mode;
@@ -314,7 +314,7 @@ struct drm_crtc_funcs {
/* atomic update handling */
struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc);
void (*atomic_destroy_state)(struct drm_crtc *crtc,
- struct drm_crtc_state *cstate);
+ struct drm_crtc_state *state);
int (*atomic_set_property)(struct drm_crtc *crtc,
struct drm_crtc_state *state,
struct drm_property *property,
@@ -417,7 +417,7 @@ struct drm_crtc {
/**
* struct drm_connector_state - mutable connector state
- * @crtc: crtc to connect connector to, NULL if disabled
+ * @crtc: CRTC to connect connector to, NULL if disabled
* @state: backpointer to global drm_atomic_state
*/
struct drm_connector_state {
@@ -441,7 +441,6 @@ struct drm_connector_state {
* @atomic_destroy_state: destroy an atomic state for this connector
* @atomic_set_property: set a property on an atomic state for this connector
*
- *
* Each CRTC may have one or more connectors attached to it. The functions
* below allow the core DRM code to control connectors, enumerate available modes,
* etc.
@@ -469,7 +468,7 @@ struct drm_connector_funcs {
/* atomic update handling */
struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
void (*atomic_destroy_state)(struct drm_connector *connector,
- struct drm_connector_state *cstate);
+ struct drm_connector_state *state);
int (*atomic_set_property)(struct drm_connector *connector,
struct drm_connector_state *state,
struct drm_property *property,
@@ -640,7 +639,7 @@ struct drm_connector {
/**
* struct drm_plane_state - mutable plane state
* @crtc: currently bound CRTC, NULL if disabled
- * @fb: currently bound fb
+ * @fb: currently bound framebuffer
* @crtc_x: left position of visible portion of plane on crtc
* @crtc_y: upper position of visible portion of plane on crtc
* @crtc_w: width of visible portion of plane on crtc
@@ -697,7 +696,7 @@ struct drm_plane_funcs {
/* atomic update handling */
struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane);
void (*atomic_destroy_state)(struct drm_plane *plane,
- struct drm_plane_state *cstate);
+ struct drm_plane_state *state);
int (*atomic_set_property)(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
@@ -793,6 +792,32 @@ struct drm_bridge {
void *driver_private;
};
+/**
+ * struct struct drm_atomic_state - the global state object for atomic updates
+ * @dev: parent DRM device
+ * @flags: state flags like async update
+ * @planes: pointer to array of plane pointers
+ * @plane_states: pointer to array of plane states pointers
+ * @crtcs: pointer to array of CRTC pointers
+ * @crtc_states: pointer to array of CRTC states pointers
+ * @connectors: pointer to array of connector pointers
+ * @connector_states: pointer to array of connector states pointers
+ * @acquire_ctx: acquire context for this atomic modeset state update
+ */
+struct drm_atomic_state {
+ struct drm_device *dev;
+ uint32_t flags;
+ struct drm_plane **planes;
+ struct drm_plane_state **plane_states;
+ struct drm_crtc **crtcs;
+ struct drm_crtc_state **crtc_states;
+ struct drm_connector **connectors;
+ struct drm_connector_state **connector_states;
+
+ struct drm_modeset_acquire_ctx *acquire_ctx;
+};
+
+
/**
* struct drm_mode_set - new values for a CRTC config change
* @fb: framebuffer to use for new config
@@ -824,6 +849,9 @@ struct drm_mode_set {
* struct drm_mode_config_funcs - basic driver provided mode setting functions
* @fb_create: create a new framebuffer object
* @output_poll_changed: function to handle output configuration changes
+ * @atomic_check: check whether a give atomic state update is possible
+ * @atomic_commit: commit an atomic state update previously verified with
+ * atomic_check()
*
* Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
* involve drivers.
@@ -833,6 +861,12 @@ struct drm_mode_config_funcs {
struct drm_file *file_priv,
struct drm_mode_fb_cmd2 *mode_cmd);
void (*output_poll_changed)(struct drm_device *dev);
+
+ int (*atomic_check)(struct drm_device *dev,
+ struct drm_atomic_state *a);
+ int (*atomic_commit)(struct drm_device *dev,
+ struct drm_atomic_state *a,
+ bool async);
};
/**
--
cgit v1.2.1
From c2fcd274bce521cd824d96d7f26dfa57ea06478c Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 5 Nov 2014 00:14:14 +0100
Subject: drm: Add atomic/plane helpers
This is the first cut of atomic helper code. As-is it's only useful to
implement a pure atomic interface for plane updates.
Later patches will integrate this with the crtc helpers so that full
atomic updates are possible. We also need a pile of helpers to aid
drivers in transitioning from the legacy world to the shiny new atomic
age. Finally we need helpers to implement legacy ioctls on top of the
atomic interface.
The design of the overall helpers<->driver interaction is fairly
simple, but has an unfortunate large interface:
- We have ->atomic_check callbacks for crtcs and planes. The idea is
that connectors don't need any checking, and if they do they can
adjust the relevant crtc driver-private state. So no connector hooks
should be needed. Also the crtc helpers integration will do the
->best_encoder checks, so no need for that.
- Framebuffer pinning needs to be done before we can commit to the hw
state. This is especially important for async updates where we must
pin all buffers before returning to userspace, so that really only
hw failures can happen in the asynchronous worker.
Hence we add ->prepare_fb and ->cleanup_fb hooks for this resources
management.
- The actual atomic plane commit can't fail (except hw woes), so has
void return type. It has three stages:
1. Prepare all affected crtcs with crtc->atomic_begin. Drivers can
use this to unset the GO bit or similar latches to prevent plane
updates.
2. Update plane state by looping over all changed planes and calling
plane->atomic_update. Presuming the hardware is sane and has GO
bits drivers can simply bash the state into the hardware in this
function. Other drivers might use this to precompute hw state for
the final step.
3. Finally latch the update for the next vblank with
crtc->atomic_flush. Note that this function doesn't need to wait
for the vblank to happen even for the synchronous case.
v2: Clear drm_<obj>_state->state to NULL when swapping in state.
v3: Add TODO that we don't short-circuit plane updates for now. Likely
no one will care.
v4: Squash in a bit of polish that somehow landed in the wrong (later)
patche.
v5: Integrate atomic functions into the drm docbook and fixup the
kerneldoc.
v6: Fixup fixup patch squashing fumble.
v7: Don't touch the legacy plane state plane->fb and plane->crtc. This
is only used by the legacy ioctl code in the drm core, and that code
already takes care of updating the pointers in all relevant cases.
This is in stark contrast to connector->encoder->crtc links on the
modeset side, which we still need to set since the core doesn't touch
them.
Also some more kerneldoc polish.
v8: Drop outdated comment.
v9: Handle the state->state pointer correctly: Only clearing the
->state pointer when assigning the state to the kms object isn't good
enough. We also need to re-link the swapped out state into the
drm_atomic_state structure.
v10: Shuffle the misplaced docbook template hunk around that Sean spotted.
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic_helper.h | 44 +++++++++++++++++++++++++++++++++++++++++
include/drm/drm_crtc.h | 6 ++++++
include/drm/drm_crtc_helper.h | 6 ++++++
include/drm/drm_plane_helper.h | 22 +++++++++++++++++++++
4 files changed, 78 insertions(+)
create mode 100644 include/drm/drm_atomic_helper.h
(limited to 'include')
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
new file mode 100644
index 000000000000..79938c62e7ad
--- /dev/null
+++ b/include/drm/drm_atomic_helper.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2014 Red Hat
+ * Copyright (C) 2014 Intel Corp.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Rob Clark <robdclark@gmail.com>
+ * Daniel Vetter <daniel.vetter@ffwll.ch>
+ */
+
+#ifndef DRM_ATOMIC_HELPER_H_
+#define DRM_ATOMIC_HELPER_H_
+
+int drm_atomic_helper_check(struct drm_device *dev,
+ struct drm_atomic_state *state);
+
+int drm_atomic_helper_prepare_planes(struct drm_device *dev,
+ struct drm_atomic_state *state);
+void drm_atomic_helper_commit_planes(struct drm_device *dev,
+ struct drm_atomic_state *state);
+void drm_atomic_helper_cleanup_planes(struct drm_device *dev,
+ struct drm_atomic_state *old_state);
+
+void drm_atomic_helper_swap_state(struct drm_device *dev,
+ struct drm_atomic_state *state);
+
+#endif /* DRM_ATOMIC_HELPER_H_ */
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c7a3400173a8..56147409408d 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -229,6 +229,7 @@ struct drm_atomic_state;
/**
* struct drm_crtc_state - mutable CRTC state
* @enable: whether the CRTC should be enabled, gates all other state
+ * @planes_changed: for use by helpers and drivers when computing state updates
* @mode: current mode timings
* @event: optional pointer to a DRM event to signal upon completion of the
* state update
@@ -237,6 +238,9 @@ struct drm_atomic_state;
struct drm_crtc_state {
bool enable;
+ /* computed state bits used by helpers and drivers */
+ bool planes_changed : 1;
+
struct drm_display_mode mode;
struct drm_pending_vblank_event *event;
@@ -747,6 +751,8 @@ struct drm_plane {
enum drm_plane_type type;
+ void *helper_private;
+
struct drm_plane_state *state;
};
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index a3d75fefd010..adec48b27aa5 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -81,6 +81,12 @@ struct drm_crtc_helper_funcs {
/* disable crtc when not in use - more explicit than dpms off */
void (*disable)(struct drm_crtc *crtc);
+
+ /* atomic helpers */
+ int (*atomic_check)(struct drm_crtc *crtc,
+ struct drm_crtc_state *state);
+ void (*atomic_begin)(struct drm_crtc *crtc);
+ void (*atomic_flush)(struct drm_crtc *crtc);
};
/**
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index fa60d19f91c0..8577ec8f3e6c 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -47,6 +47,28 @@ extern int drm_crtc_init(struct drm_device *dev,
struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs);
+/**
+ * drm_plane_helper_funcs - helper operations for CRTCs
+ *
+ * The helper operations are called by the mid-layer CRTC helper.
+ */
+struct drm_plane_helper_funcs {
+ int (*prepare_fb)(struct drm_plane *plane,
+ struct drm_framebuffer *fb);
+ void (*cleanup_fb)(struct drm_plane *plane,
+ struct drm_framebuffer *fb);
+
+ int (*atomic_check)(struct drm_plane *plane,
+ struct drm_plane_state *state);
+ void (*atomic_update)(struct drm_plane *plane);
+};
+
+static inline void drm_plane_helper_add(struct drm_plane *plane,
+ const struct drm_plane_helper_funcs *funcs)
+{
+ plane->helper_private = (void *)funcs;
+}
+
extern int drm_plane_helper_check_update(struct drm_plane *plane,
struct drm_crtc *crtc,
struct drm_framebuffer *fb,
--
cgit v1.2.1
From acf24a395c5a9290189b080383564437101d411c Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 29 Jul 2014 15:33:05 +0200
Subject: drm/plane-helper: transitional atomic plane helpers
Converting a driver to the atomic interface can be a daunting
undertaking. One of the prerequisites is to have full universal planes
support.
To make that transition a bit easier this patch provides plane helpers
which use the new atomic helper callbacks just only for the plane
changes. This way the plane update functionality can be tested without
being forced to convert everything at once.
Of course a real atomic update capable driver will implement the
all plane properties through the atomic interface, so these helpers
are mostly transitional. But they can be used to enable proper
universal plane support, especially once the crtc helpers have also
been adapted.
v2: Use ->atomic_duplicate_state if available.
v3: Don't forget to call ->atomic_destroy_state if available.
v4: Fixup kerneldoc, reported by Paulo.
v5: Extract a common plane_commit helper and fix some bugs in the
plane_state setup of the plane_disable implementation.
v6: Fix issues with the cleanup of the old fb. Since transitional
helpers can be mixed we need to assume that the old fb has been set up
by a legacy path (e.g. set_config or page_flip when the primary plane
is converted to use these functions already). Hence pass an additional
old_fb parameter to plane_commit to do that cleanup work correctly.
v7:
- Fix spurious WARNING (crtc helpers really love to disable stuff
harder) and fix array index bonghits.
- Correctly handle the lack of plane->state object, necessary for
transitional use.
- Don't indicate failure if drm_vblank_get doesn't work - that's
expected when the pipe is in dpms off mode.
v8: Review from Sean:
- s/fail/out/ to make the meaning of a label more clear.
- spelling fix in the commit message.
Cc: Paulo Zanoni <przanoni@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_plane_helper.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index 8577ec8f3e6c..92bceccaa62a 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -95,4 +95,12 @@ extern struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev,
int num_formats);
+int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int crtc_x, int crtc_y,
+ unsigned int crtc_w, unsigned int crtc_h,
+ uint32_t src_x, uint32_t src_y,
+ uint32_t src_w, uint32_t src_h);
+int drm_plane_helper_disable(struct drm_plane *plane);
+
#endif
--
cgit v1.2.1
From 2f324b42b7b24a48fe3f8a7af60ec3c9024255fa Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 29 Oct 2014 11:13:47 +0100
Subject: drm/crtc-helper: Transitional functions using atomic plane helpers
These two functions allow drivers to reuse their atomic plane helpers
functions for the primary plane to implement the interfaces required
by the crtc helpers for the legacy ->set_config callback.
This is purely transitional and won't be used once the driver is fully
converted. But it allows partial conversions to the atomic plane
helpers which are functional.
v2:
- Use ->atomic_duplicate_state if available.
- Don't forget to run crtc_funcs->atomic_check.
v3: Shift source coordinates correctly for 16.16 fixed point.
v4: Don't forget to call ->atomic_destroy_state if available.
v5: Fixup kerneldoc.
v6: Reuse the plane_commit function from the transitional plane
helpers to avoid too much duplication.
v7:
- Remove some stale comment.
- Correctly handle the lack of plane->state object, necessary for
transitional use.
v8: Fixup an embarrassing h/vdisplay mixup.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_crtc.h | 4 ++++
include/drm/drm_crtc_helper.h | 7 +++++++
include/drm/drm_plane_helper.h | 4 ++++
3 files changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 56147409408d..53c8638592d4 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -230,6 +230,7 @@ struct drm_atomic_state;
* struct drm_crtc_state - mutable CRTC state
* @enable: whether the CRTC should be enabled, gates all other state
* @planes_changed: for use by helpers and drivers when computing state updates
+ * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
* @mode: current mode timings
* @event: optional pointer to a DRM event to signal upon completion of the
* state update
@@ -241,6 +242,9 @@ struct drm_crtc_state {
/* computed state bits used by helpers and drivers */
bool planes_changed : 1;
+ /* adjusted_mode: for use by helpers and drivers */
+ struct drm_display_mode adjusted_mode;
+
struct drm_display_mode mode;
struct drm_pending_vblank_event *event;
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index adec48b27aa5..7adbb65ea8ae 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -68,6 +68,7 @@ struct drm_crtc_helper_funcs {
int (*mode_set)(struct drm_crtc *crtc, struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode, int x, int y,
struct drm_framebuffer *old_fb);
+ void (*mode_set_nofb)(struct drm_crtc *crtc);
/* Move the crtc on the current fb to the given position *optional* */
int (*mode_set_base)(struct drm_crtc *crtc, int x, int y,
@@ -167,6 +168,12 @@ static inline void drm_connector_helper_add(struct drm_connector *connector,
extern void drm_helper_resume_force_mode(struct drm_device *dev);
+int drm_helper_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode, int x, int y,
+ struct drm_framebuffer *old_fb);
+int drm_helper_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+ struct drm_framebuffer *old_fb);
+
/* drm_probe_helper.c */
extern int drm_helper_probe_single_connector_modes(struct drm_connector
*connector, uint32_t maxX,
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index 92bceccaa62a..c48f14d88690 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -103,4 +103,8 @@ int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
uint32_t src_w, uint32_t src_h);
int drm_plane_helper_disable(struct drm_plane *plane);
+/* For use by drm_crtc_helper.c */
+int drm_plane_helper_commit(struct drm_plane *plane,
+ struct drm_plane_state *plane_state,
+ struct drm_framebuffer *old_fb);
#endif
--
cgit v1.2.1
From 68c4a4f8abc60c9440ede9cd123d48b78325f7a3 Mon Sep 17 00:00:00 2001
From: Sebastian Schmidt <yath@yath.de>
Date: Sun, 19 Oct 2014 20:05:15 +0200
Subject: pstore: Honor dmesg_restrict sysctl on dmesg dumps
When the kernel.dmesg_restrict restriction is in place, only users with
CAP_SYSLOG should be able to access crash dumps (like: attacker is
trying to exploit a bug, watchdog reboots, attacker can happily read
crash dumps and logs).
This puts the restriction on console-* types as well as sensitive
information could have been leaked there.
Other log types are unaffected.
Signed-off-by: Sebastian Schmidt <yath@yath.de>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
include/linux/syslog.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/syslog.h b/include/linux/syslog.h
index 98a3153c0f96..9def5297dbb7 100644
--- a/include/linux/syslog.h
+++ b/include/linux/syslog.h
@@ -48,5 +48,6 @@
#define SYSLOG_FROM_PROC 1
int do_syslog(int type, char __user *buf, int count, bool from_file);
+int check_syslog_permissions(int type, bool from_file);
#endif /* _LINUX_SYSLOG_H */
--
cgit v1.2.1
From 37246a583715e2258d7c5cfecbd9fff0f9fa4b5d Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Mon, 27 Oct 2014 16:02:47 -0400
Subject: netfilter: Remove return values for print_conntrack callbacks
The seq_printf() and friends are having their return values removed.
The print_conntrack() returns the result of seq_printf(), which is
meaningless when seq_printf() returns void. Might as well remove the
return values of print_conntrack() as well.
Link: http://lkml.kernel.org/r/20141029220107.465008329@goodmis.org
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: netfilter-devel@vger.kernel.org
Cc: coreteam@netfilter.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/net/netfilter/nf_conntrack_l4proto.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 4c8d573830b7..82e4ec002a39 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -60,7 +60,7 @@ struct nf_conntrack_l4proto {
const struct nf_conntrack_tuple *);
/* Print out the private part of the conntrack. */
- int (*print_conntrack)(struct seq_file *s, struct nf_conn *);
+ void (*print_conntrack)(struct seq_file *s, struct nf_conn *);
/* Return the array of timeouts for this protocol. */
unsigned int *(*get_timeouts)(struct net *net);
--
cgit v1.2.1
From 824f1fbee7bbbd850cdb62d3f95143fad4719e20 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 29 Sep 2014 16:08:22 -0700
Subject: netfilter: Convert print_tuple functions to return void
Since adding a new function to seq_file (seq_has_overflowed())
there isn't any value for functions called from seq_show to
return anything. Remove the int returns of the various
print_tuple/<foo>_print_tuple functions.
Link: http://lkml.kernel.org/p/f2e8cf8df433a197daa62cbaf124c900c708edc7.1412031505.git.joe@perches.com
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: netfilter-devel@vger.kernel.org
Cc: coreteam@netfilter.org
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/net/netfilter/nf_conntrack_core.h | 2 +-
include/net/netfilter/nf_conntrack_l3proto.h | 4 ++--
include/net/netfilter/nf_conntrack_l4proto.h | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index cc0c18827602..f2f0fa3bb150 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -72,7 +72,7 @@ static inline int nf_conntrack_confirm(struct sk_buff *skb)
return ret;
}
-int
+void
print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_l3proto *l3proto,
const struct nf_conntrack_l4proto *proto);
diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h
index adc1fa3dd7ab..cdc920b4c4c2 100644
--- a/include/net/netfilter/nf_conntrack_l3proto.h
+++ b/include/net/netfilter/nf_conntrack_l3proto.h
@@ -38,8 +38,8 @@ struct nf_conntrack_l3proto {
const struct nf_conntrack_tuple *orig);
/* Print out the per-protocol part of the tuple. */
- int (*print_tuple)(struct seq_file *s,
- const struct nf_conntrack_tuple *);
+ void (*print_tuple)(struct seq_file *s,
+ const struct nf_conntrack_tuple *);
/*
* Called before tracking.
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 82e4ec002a39..1f7061313d54 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -56,8 +56,8 @@ struct nf_conntrack_l4proto {
u_int8_t pf, unsigned int hooknum);
/* Print out the per-protocol part of the tuple. Return like seq_* */
- int (*print_tuple)(struct seq_file *s,
- const struct nf_conntrack_tuple *);
+ void (*print_tuple)(struct seq_file *s,
+ const struct nf_conntrack_tuple *);
/* Print out the private part of the conntrack. */
void (*print_conntrack)(struct seq_file *s, struct nf_conn *);
--
cgit v1.2.1
From a3816ab0e8fe542a89a53b82506a8ddac063fbe3 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 29 Sep 2014 16:08:25 -0700
Subject: fs: Convert show_fdinfo functions to void
seq_printf functions shouldn't really check the return value.
Checking seq_has_overflowed() occasionally is used instead.
Update vfs documentation.
Link: http://lkml.kernel.org/p/e37e6e7b76acbdcc3bb4ab2a57c8f8ca1ae11b9a.1412031505.git.joe@perches.com
Cc: David S. Miller <davem@davemloft.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Joe Perches <joe@perches.com>
[ did a few clean ups ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a957d4366c24..01dd9052a142 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1491,7 +1491,7 @@ struct file_operations {
int (*setlease)(struct file *, long, struct file_lock **, void **);
long (*fallocate)(struct file *file, int mode, loff_t offset,
loff_t len);
- int (*show_fdinfo)(struct seq_file *m, struct file *f);
+ void (*show_fdinfo)(struct seq_file *m, struct file *f);
};
struct inode_operations {
--
cgit v1.2.1
From 9761536e1d9e9e1f325fb04d4ad46b15a39eb94a Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 29 Sep 2014 16:08:26 -0700
Subject: debugfs: Have debugfs_print_regs32() return void
The seq_printf() will soon just return void, and seq_has_overflowed()
should be used instead to see if the seq can no longer accept input.
As the return value of debugfs_print_regs32() has no users and
the seq_file descriptor should be checked with seq_has_overflowed()
instead of return values of functions, it is better to just have
debugfs_print_regs32() also return void.
Link: http://lkml.kernel.org/p/2634b19eb1c04a9d31148c1fe6f1f3819be95349.1412031505.git.joe@perches.com
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joe Perches <joe@perches.com>
[ original change only updated seq_printf() return, added return of
void to debugfs_print_regs32() as well ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/debugfs.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 4d0b4d1aa132..d84f8c254a87 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -92,8 +92,8 @@ struct dentry *debugfs_create_regset32(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_regset32 *regset);
-int debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
- int nregs, void __iomem *base, char *prefix);
+void debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
+ int nregs, void __iomem *base, char *prefix);
struct dentry *debugfs_create_u32_array(const char *name, umode_t mode,
struct dentry *parent,
@@ -233,10 +233,9 @@ static inline struct dentry *debugfs_create_regset32(const char *name,
return ERR_PTR(-ENODEV);
}
-static inline int debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
+static inline void debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
int nregs, void __iomem *base, char *prefix)
{
- return 0;
}
static inline bool debugfs_initialized(void)
--
cgit v1.2.1
From b4c9f578cb9608f7de0c89aa637a6af4a48061ef Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 4 Nov 2014 11:01:47 +0900
Subject: usb: dwc3: exynos: remove non-DT support for Exynos Specific Glue
layer
DWC3 Exynos Specific Glue layer can be used only for Exynos SoCs.
In addition, non-DT for EXYNOS SoCs is not supported from v3.11;
thus, there is no need to support non-DT for DWC3 Exynos Specific
Glue layer.
The 'linux/platform_data/dwc3-exynos.h' file has been used for
non-DT support. Thus, the 'dwc3-exynos.h' file is removed, because
it is not used anymore.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/platform_data/dwc3-exynos.h | 24 ------------------------
1 file changed, 24 deletions(-)
delete mode 100644 include/linux/platform_data/dwc3-exynos.h
(limited to 'include')
diff --git a/include/linux/platform_data/dwc3-exynos.h b/include/linux/platform_data/dwc3-exynos.h
deleted file mode 100644
index 5eb7da9b3772..000000000000
--- a/include/linux/platform_data/dwc3-exynos.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/**
- * dwc3-exynos.h - Samsung EXYNOS DWC3 Specific Glue layer, header.
- *
- * Copyright (c) 2012 Samsung Electronics Co., Ltd.
- * http://www.samsung.com
- *
- * Author: Anton Tikhomirov <av.tikhomirov@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef _DWC3_EXYNOS_H_
-#define _DWC3_EXYNOS_H_
-
-struct dwc3_exynos_data {
- int phy_type;
- int (*phy_init)(struct platform_device *pdev, int type);
- int (*phy_exit)(struct platform_device *pdev, int type);
-};
-
-#endif /* _DWC3_EXYNOS_H_ */
--
cgit v1.2.1
From 60ba032ed76e851d30d4fa514847285252147d07 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 5 Nov 2014 00:29:07 +0100
Subject: ACPI / property: Drop size_prop from
acpi_dev_get_property_reference()
The size_prop argument of the recently added function
acpi_dev_get_property_reference() is not used by the only current
caller of that function and is very unlikely to be used at any time
going forward.
Namely, for a property whose value is a list of items each containing
a references to a device object possibly accompanied by some integers,
the number of items in the list can always be computed as the number
of elements of type ACPI_TYPE_LOCAL_REFERENCE in the property package.
Thus it should never be necessary to provide an additional "cells"
property with a value equal to the number of items in that list. It
also should never be necessary to provide a "cells" property specifying
how many integers are supposed to be following each reference.
For this reason, drop the size_prop argument from
acpi_dev_get_property_reference() and update its caller accordingly.
Link: http://marc.info/?l=linux-kernel&m=141511255610556&w=2
Suggested-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/acpi.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 0902426c4521..10f2ed95645c 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -718,8 +718,8 @@ int acpi_dev_get_property(struct acpi_device *adev, const char *name,
int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
acpi_object_type type,
const union acpi_object **obj);
-int acpi_dev_get_property_reference(struct acpi_device *adev, const char *name,
- const char *cells_name, size_t index,
+int acpi_dev_get_property_reference(struct acpi_device *adev,
+ const char *name, size_t index,
struct acpi_reference_args *args);
int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
--
cgit v1.2.1
From 32f638fc11db0526c706454d9ab4339d55ac89f3 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Thu, 30 Oct 2014 10:17:25 -0600
Subject: PCI: Don't oops on virtual buses in acpi_pci_get_bridge_handle()
acpi_pci_get_bridge_handle() returns the ACPI handle for the bridge device
(either a host bridge or a PCI-to-PCI bridge) leading to a PCI bus. But
SR-IOV virtual functions can be on a virtual bus with no bridge leading to
it. Return a NULL acpi_handle in this case instead of trying to
dereference the NULL pointer to the bridge.
This fixes a NULL pointer dereference oops in pci_get_hp_params() when
adding SR-IOV VF devices on virtual buses.
[bhelgaas: changelog, add comment in code]
Fixes: 6cd33649fa83 ("PCI: Add pci_configure_device() during enumeration")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=87591
Reported-by: Chao Zhou <chao.zhou@intel.com>
Reported-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/pci-acpi.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index 64dacb7288a6..24c7728ca681 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -41,8 +41,13 @@ static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
if (pci_is_root_bus(pbus))
dev = pbus->bridge;
- else
+ else {
+ /* If pbus is a virtual bus, there is no bridge to it */
+ if (!pbus->self)
+ return NULL;
+
dev = &pbus->self->dev;
+ }
return ACPI_HANDLE(dev);
}
--
cgit v1.2.1
From 9cdb5dbf79f4e8f43e19ab7f4ec9ed74c146f0af Mon Sep 17 00:00:00 2001
From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Date: Wed, 5 Nov 2014 21:44:27 +0100
Subject: include/linux/socket.h: Fix comment
File descriptors are always closed on exit :-)
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/socket.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/socket.h b/include/linux/socket.h
index ec538fc287a6..bb9b83640070 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -256,7 +256,7 @@ struct ucred {
#define MSG_EOF MSG_FIN
#define MSG_FASTOPEN 0x20000000 /* Send data in TCP SYN */
-#define MSG_CMSG_CLOEXEC 0x40000000 /* Set close_on_exit for file
+#define MSG_CMSG_CLOEXEC 0x40000000 /* Set close_on_exec for file
descriptor received through
SCM_RIGHTS */
#if defined(CONFIG_COMPAT)
--
cgit v1.2.1
From 53f9ee61b46d81a43d8c6694d136896e8f49a7b8 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:12 +0100
Subject: ieee802154: rework wpan_phy index assignment
This patch reworks the wpan_phy index incrementation. It's now similar
like wireless wiphy index incrementation. We move the wpan_phy index
attribute inside of cfg802154_registered_device and use atomic
operations instead locking mechanism via wpan_phy_mutex.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 864bce2b0728..29c6de5a426c 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -61,7 +61,6 @@ struct wpan_phy {
s32 cca_ed_level;
struct device dev;
- int idx;
char priv[0] __aligned(NETDEV_ALIGN);
};
--
cgit v1.2.1
From 9f3295b9ea8e54a6c65231d267f069edf420b64f Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:13 +0100
Subject: ieee802154: remove nl802154 unused functions
The include/net/nl802154.h file contains a lot of prototypes which are
not used inside of ieee802154 subsystem. This patch removes this file
and make the only one used prototype "ieee802154_nl_start_confirm" as
static declaration in ieee802154/nl-mac.c
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/nl802154.h | 122 -------------------------------------------------
1 file changed, 122 deletions(-)
delete mode 100644 include/net/nl802154.h
(limited to 'include')
diff --git a/include/net/nl802154.h b/include/net/nl802154.h
deleted file mode 100644
index b5cdea29d9d9..000000000000
--- a/include/net/nl802154.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * nl802154.h
- *
- * Copyright (C) 2007, 2008, 2009 Siemens AG
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef IEEE802154_NL_H
-#define IEEE802154_NL_H
-
-struct net_device;
-struct ieee802154_addr;
-
-/**
- * ieee802154_nl_assoc_indic - Notify userland of an association request.
- * @dev: The network device on which this association request was
- * received.
- * @addr: The address of the device requesting association.
- * @cap: The capability information field from the device.
- *
- * This informs a userland coordinator of a device requesting to
- * associate with the PAN controlled by the coordinator.
- *
- * Note: This is in section 7.3.1 of the IEEE 802.15.4-2006 document.
- */
-int ieee802154_nl_assoc_indic(struct net_device *dev,
- struct ieee802154_addr *addr, u8 cap);
-
-/**
- * ieee802154_nl_assoc_confirm - Notify userland of association.
- * @dev: The device which has completed association.
- * @short_addr: The short address assigned to the device.
- * @status: The status of the association.
- *
- * Inform userland of the result of an association request. If the
- * association request included asking the coordinator to allocate
- * a short address then it is returned in @short_addr.
- *
- * Note: This is in section 7.3.2 of the IEEE 802.15.4 document.
- */
-int ieee802154_nl_assoc_confirm(struct net_device *dev,
- __le16 short_addr, u8 status);
-
-/**
- * ieee802154_nl_disassoc_indic - Notify userland of disassociation.
- * @dev: The device on which disassociation was indicated.
- * @addr: The device which is disassociating.
- * @reason: The reason for the disassociation.
- *
- * Inform userland that a device has disassociated from the network.
- *
- * Note: This is in section 7.3.3 of the IEEE 802.15.4 document.
- */
-int ieee802154_nl_disassoc_indic(struct net_device *dev,
- struct ieee802154_addr *addr, u8 reason);
-
-/**
- * ieee802154_nl_disassoc_confirm - Notify userland of disassociation
- * completion.
- * @dev: The device on which disassociation was ordered.
- * @status: The result of the disassociation.
- *
- * Inform userland of the result of requesting that a device
- * disassociate, or the result of requesting that we disassociate from
- * a PAN managed by another coordinator.
- *
- * Note: This is in section 7.1.4.3 of the IEEE 802.15.4 document.
- */
-int ieee802154_nl_disassoc_confirm(struct net_device *dev,
- u8 status);
-
-/**
- * ieee802154_nl_scan_confirm - Notify userland of completion of scan.
- * @dev: The device which was instructed to scan.
- * @status: The status of the scan operation.
- * @scan_type: What type of scan was performed.
- * @unscanned: Any channels that the device was unable to scan.
- * @edl: The energy levels (if a passive scan).
- *
- *
- * Note: This is in section 7.1.11 of the IEEE 802.15.4 document.
- * Note: This API does not permit the return of an active scan result.
- */
-int ieee802154_nl_scan_confirm(struct net_device *dev,
- u8 status, u8 scan_type, u32 unscanned, u8 page,
- u8 *edl/*, struct list_head *pan_desc_list */);
-
-/**
- * ieee802154_nl_beacon_indic - Notify userland of a received beacon.
- * @dev: The device on which a beacon was received.
- * @panid: The PAN of the coordinator.
- * @coord_addr: The short address of the coordinator on that PAN.
- *
- * Note: This is in section 7.1.5 of the IEEE 802.15.4 document.
- * Note: This API does not provide extended information such as what
- * channel the PAN is on or what the LQI of the beacon frame was on
- * receipt.
- * Note: This API cannot indicate a beacon frame for a coordinator
- * operating in long addressing mode.
- */
-int ieee802154_nl_beacon_indic(struct net_device *dev, __le16 panid,
- __le16 coord_addr);
-
-/**
- * ieee802154_nl_start_confirm - Notify userland of completion of start.
- * @dev: The device which was instructed to scan.
- * @status: The status of the scan operation.
- *
- * Note: This is in section 7.1.14 of the IEEE 802.15.4 document.
- */
-int ieee802154_nl_start_confirm(struct net_device *dev, u8 status);
-
-#endif
--
cgit v1.2.1
From d5ae67bacd9654b0e26b9f248249e9ee1b6e338b Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:17 +0100
Subject: ieee802154: rework interface registration
This patch meld mac802154_netdev_register into ieee802154_if_add
function. Also we have now only one alloc_netdev call with one interface
setup routine "ieee802154_if_setup" instead two different one for each
interface type. This patch checks via runtime the interface type and do
different handling now. Additional we add the wpan_dev struct in
ieee802154_sub_if_data and set the new ieee802154_ptr while netdev
registration. This behaviour is very similar the mac80211 netdev
registration functionality.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 29c6de5a426c..57333f1ee75c 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -65,6 +65,10 @@ struct wpan_phy {
char priv[0] __aligned(NETDEV_ALIGN);
};
+struct wpan_dev {
+ struct wpan_phy *wpan_phy;
+};
+
#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
struct wpan_phy *
--
cgit v1.2.1
From bd28a11f25f2c2a563620e7be588dc4dd8a91396 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:18 +0100
Subject: ieee802154: remove mlme get_phy callback
This patch removes the get_phy callback from mlme ops structure. Instead
we doing a dereference via ieee802154_ptr dev pointer. For backwards
compatibility we need to run get_device after dereference wpan_phy via
ieee802154_ptr.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/ieee802154_netdev.h | 12 ------------
1 file changed, 12 deletions(-)
(limited to 'include')
diff --git a/include/net/ieee802154_netdev.h b/include/net/ieee802154_netdev.h
index 5e62d758eea5..83bb8a73d23c 100644
--- a/include/net/ieee802154_netdev.h
+++ b/include/net/ieee802154_netdev.h
@@ -423,8 +423,6 @@ struct ieee802154_mlme_ops {
/* The fields below are required. */
- struct wpan_phy *(*get_phy)(const struct net_device *dev);
-
/*
* FIXME: these should become the part of PIB/MIB interface.
* However we still don't have IB interface of any kind
@@ -434,16 +432,6 @@ struct ieee802154_mlme_ops {
u8 (*get_dsn)(const struct net_device *dev);
};
-/* The IEEE 802.15.4 standard defines 2 type of the devices:
- * - FFD - full functionality device
- * - RFD - reduce functionality device
- *
- * So 2 sets of mlme operations are needed
- */
-struct ieee802154_reduced_mlme_ops {
- struct wpan_phy *(*get_phy)(const struct net_device *dev);
-};
-
static inline struct ieee802154_mlme_ops *
ieee802154_mlme_ops(const struct net_device *dev)
{
--
cgit v1.2.1
From 7c118c1a866454cf2091fd84404d0915a27b0eef Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:20 +0100
Subject: mac802154: add ieee802154_vif struct
This patch adds an ieee802154_vif similar like the ieee80211_vif which
holds the interface type and maybe further more attributes like the
ieee80211_vif structure.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 8b0c26bc0762..10711a6409f4 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -52,6 +52,13 @@ struct ieee802154_hw_addr_filt {
u8 pan_coord;
};
+struct ieee802154_vif {
+ int type;
+
+ /* must be last */
+ u8 drv_priv[0] __aligned(sizeof(void *));
+};
+
struct ieee802154_hw {
/* filled by the driver */
int extra_tx_headroom;
@@ -62,6 +69,7 @@ struct ieee802154_hw {
struct ieee802154_hw_addr_filt hw_filt;
void *priv;
struct wpan_phy *phy;
+ size_t vif_data_size;
};
/* Checksum is in hardware and is omitted from a packet
--
cgit v1.2.1
From 1906bbbddbe085b19be2c21cd132335260f551c3 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:21 +0100
Subject: ieee802154: add IEEE802154_EXTENDED_ADDR_LEN
This patch adds a new define for getting the length of an extended
address.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index 4c032863cd71..a907fe59b1d1 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -29,6 +29,8 @@
#define IEEE802154_MTU 127
#define IEEE802154_MIN_PSDU_LEN 5
+#define IEEE802154_EXTENDED_ADDR_LEN 8
+
#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
#define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */
#define IEEE802154_FC_TYPE_ACK 0x2 /* Frame is acknowledgment */
--
cgit v1.2.1
From 35d5a374a559a1ba9c6810739cf3ad1d672c2de2 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:22 +0100
Subject: ieee802154: add ieee802154_random_extended_addr
This patch adds a new function to generate a random IEEE 802.15.4
extended address.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index a907fe59b1d1..d043449a079d 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -24,6 +24,7 @@
#define LINUX_IEEE802154_H
#include <linux/types.h>
+#include <linux/random.h>
#include <asm/byteorder.h>
#define IEEE802154_MTU 127
@@ -215,4 +216,17 @@ static inline bool ieee802154_is_valid_extended_addr(const __le64 addr)
(addr != cpu_to_le64(0xffffffffffffffffULL)));
}
+/**
+ * ieee802154_random_extended_addr - generates a random extended address
+ * @addr: extended addr pointer to place the random address
+ */
+static inline void ieee802154_random_extended_addr(__le64 *addr)
+{
+ get_random_bytes(addr, IEEE802154_EXTENDED_ADDR_LEN);
+
+ /* toggle some bit if we hit an invalid extended addr */
+ if (!ieee802154_is_valid_extended_addr(*addr))
+ ((u8 *)addr)[IEEE802154_EXTENDED_ADDR_LEN - 1] ^= 0x01;
+}
+
#endif /* LINUX_IEEE802154_H */
--
cgit v1.2.1
From 239a84a9a0bcbc7214eb93fb3ba76962de846239 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:23 +0100
Subject: mac802154: add ieee802154_le64_to_be64
This patch adds a new function to convert a le64 to a be64. This is
useful to translate an extended address to a netdev dev_addr.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 10711a6409f4..cc188cb4f94d 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -17,6 +17,7 @@
#define NET_MAC802154_H
#include <net/af_ieee802154.h>
+#include <linux/ieee802154.h>
#include <linux/skbuff.h>
/* General MAC frame format:
@@ -231,6 +232,18 @@ static inline __le64 ieee802154_netdev_to_extended_addr(const void *dev_addr)
return (__force __le64)swab64p(dev_addr);
}
+/**
+ * ieee802154_le64_to_be64 - copies and convert le64 to be64
+ * @be64_dst: be64 destination pointer
+ * @le64_src: le64 source pointer
+ */
+static inline void ieee802154_le64_to_be64(void *be64_dst, const void *le64_src)
+{
+ __be64 tmp = (__force __be64)swab64p(le64_src);
+
+ memcpy(be64_dst, &tmp, IEEE802154_EXTENDED_ADDR_LEN);
+}
+
/* Basic interface to register ieee802154 hwice */
struct ieee802154_hw *
ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops);
--
cgit v1.2.1
From 705cbbbe9ccca260658f971a4369c22f5704db75 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:24 +0100
Subject: mac802154: cleanup ieee802154_netdev_to_extended_addr
This patch cleanups the ieee802154_be64_to_le64 to have a similar
function like ieee802154_le64_to_be64 only with switched source and
destionation types.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/mac802154.h | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index cc188cb4f94d..632f6566adb5 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -224,12 +224,15 @@ struct ieee802154_ops {
};
/**
- * ieee802154_netdev_to_extended_addr - convert big endian 64 byte void pointer to __le64
- * @dev_addr: big endian address pointer like netdevice dev_addr attribute
+ * ieee802154_be64_to_le64 - copies and convert be64 to le64
+ * @le64_dst: le64 destination pointer
+ * @be64_src: be64 source pointer
*/
-static inline __le64 ieee802154_netdev_to_extended_addr(const void *dev_addr)
+static inline void ieee802154_be64_to_le64(void *le64_dst, const void *be64_src)
{
- return (__force __le64)swab64p(dev_addr);
+ __le64 tmp = (__force __le64)swab64p(be64_src);
+
+ memcpy(le64_dst, &tmp, IEEE802154_EXTENDED_ADDR_LEN);
}
/**
--
cgit v1.2.1
From dee56d14779b1e01706adafb9e020303318e22e3 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 5 Nov 2014 20:51:25 +0100
Subject: mac802154: add support for perm_extended_addr
This patch adding support for a perm extended address. This is useful
when a device supports an eeprom with a programmed static extended address.
If a device doesn't support such eeprom or serial registers then the
driver should generate a random extended address.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 57333f1ee75c..9d99b9655760 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -57,6 +57,8 @@ struct wpan_phy {
u8 csma_retries;
s8 frame_retries;
+ __le64 perm_extended_addr;
+
bool lbt;
s32 cca_ed_level;
--
cgit v1.2.1
From 63487babf08d6d67483c67ed21d8cea6674a44ec Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Tue, 4 Nov 2014 09:06:51 -0800
Subject: net: Move fou_build_header into fou.c and refactor
Move fou_build_header out of ip_tunnel.c and into fou.c splitting
it up into fou_build_header, gue_build_header, and fou_build_udp.
This allows for other users for TX of FOU or GUE. Change ip_tunnel_encap
to call fou_build_header or gue_build_header based on the tunnel
encapsulation type. Similarly, added fou_encap_hlen and gue_encap_hlen
functions which are called by ip_encap_hlen. New net/fou.h has
prototypes and defines for this.
Added NET_FOU_IP_TUNNELS configuration. When this is set, IP tunnels
can use FOU/GUE and fou module is also selected.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/fou.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 include/net/fou.h
(limited to 'include')
diff --git a/include/net/fou.h b/include/net/fou.h
new file mode 100644
index 000000000000..cf4ce8874f92
--- /dev/null
+++ b/include/net/fou.h
@@ -0,0 +1,26 @@
+#ifndef __NET_FOU_H
+#define __NET_FOU_H
+
+#include <linux/skbuff.h>
+
+#include <net/flow.h>
+#include <net/gue.h>
+#include <net/ip_tunnels.h>
+#include <net/udp.h>
+
+int fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
+ u8 *protocol, struct flowi4 *fl4);
+int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
+ u8 *protocol, struct flowi4 *fl4);
+
+static size_t fou_encap_hlen(struct ip_tunnel_encap *e)
+{
+ return sizeof(struct udphdr);
+}
+
+static size_t gue_encap_hlen(struct ip_tunnel_encap *e)
+{
+ return sizeof(struct udphdr) + sizeof(struct guehdr);
+}
+
+#endif
--
cgit v1.2.1
From 5024c33ac354577635c5671498891eb197f3ec4d Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Tue, 4 Nov 2014 09:06:53 -0800
Subject: gue: Add infrastructure for flags and options
Add functions and basic definitions for processing standard flags,
private flags, and control messages. This includes definitions
to compute length of optional fields corresponding to a set of flags.
Flag validation is in validate_gue_flags function. This checks for
unknown flags, and that length of optional fields is <= length
in guehdr hlen.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/gue.h | 100 +++++++++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 95 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/gue.h b/include/net/gue.h
index b6c332788084..cb68ae843c77 100644
--- a/include/net/gue.h
+++ b/include/net/gue.h
@@ -1,23 +1,113 @@
#ifndef __NET_GUE_H
#define __NET_GUE_H
+/* Definitions for the GUE header, standard and private flags, lengths
+ * of optional fields are below.
+ *
+ * Diagram of GUE header:
+ *
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |Ver|C| Hlen | Proto/ctype | Standard flags |P|
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | |
+ * ~ Fields (optional) ~
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Private flags (optional, P bit is set) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | |
+ * ~ Private fields (optional) ~
+ * | |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ * C bit indicates contol message when set, data message when unset.
+ * For a control message, proto/ctype is interpreted as a type of
+ * control message. For data messages, proto/ctype is the IP protocol
+ * of the next header.
+ *
+ * P bit indicates private flags field is present. The private flags
+ * may refer to options placed after this field.
+ */
+
struct guehdr {
union {
struct {
#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u8 hlen:4,
- version:4;
+ __u8 hlen:5,
+ control:1,
+ version:2;
#elif defined (__BIG_ENDIAN_BITFIELD)
- __u8 version:4,
- hlen:4;
+ __u8 version:2,
+ control:1,
+ hlen:5;
#else
#error "Please fix <asm/byteorder.h>"
#endif
- __u8 next_hdr;
+ __u8 proto_ctype;
__u16 flags;
};
__u32 word;
};
};
+/* Standard flags in GUE header */
+
+#define GUE_FLAG_PRIV htons(1<<0) /* Private flags are in options */
+#define GUE_LEN_PRIV 4
+
+#define GUE_FLAGS_ALL (GUE_FLAG_PRIV)
+
+/* Private flags in the private option extension */
+
+#define GUE_PFLAGS_ALL (0)
+
+/* Functions to compute options length corresponding to flags.
+ * If we ever have a lot of flags this can be potentially be
+ * converted to a more optimized algorithm (table lookup
+ * for instance).
+ */
+static inline size_t guehdr_flags_len(__be16 flags)
+{
+ return ((flags & GUE_FLAG_PRIV) ? GUE_LEN_PRIV : 0);
+}
+
+static inline size_t guehdr_priv_flags_len(__be32 flags)
+{
+ return 0;
+}
+
+/* Validate standard and private flags. Returns non-zero (meaning invalid)
+ * if there is an unknown standard or private flags, or the options length for
+ * the flags exceeds the options length specific in hlen of the GUE header.
+ */
+static inline int validate_gue_flags(struct guehdr *guehdr,
+ size_t optlen)
+{
+ size_t len;
+ __be32 flags = guehdr->flags;
+
+ if (flags & ~GUE_FLAGS_ALL)
+ return 1;
+
+ len = guehdr_flags_len(flags);
+ if (len > optlen)
+ return 1;
+
+ if (flags & GUE_FLAG_PRIV) {
+ /* Private flags are last four bytes accounted in
+ * guehdr_flags_len
+ */
+ flags = *(__be32 *)((void *)&guehdr[1] + len - GUE_LEN_PRIV);
+
+ if (flags & ~GUE_PFLAGS_ALL)
+ return 1;
+
+ len += guehdr_priv_flags_len(flags);
+ if (len > optlen)
+ return 1;
+ }
+
+ return 0;
+}
+
#endif
--
cgit v1.2.1
From e585f23636370320bc2071ca5ba2744ae37c3e51 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Tue, 4 Nov 2014 09:06:54 -0800
Subject: udp: Changes to udp_offload to support remote checksum offload
Add a new GSO type, SKB_GSO_TUNNEL_REMCSUM, which indicates remote
checksum offload being done (in this case inner checksum must not
be offloaded to the NIC).
Added logic in __skb_udp_tunnel_segment to handle remote checksum
offload case.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdev_features.h | 4 +++-
include/linux/netdevice.h | 1 +
include/linux/skbuff.h | 4 +++-
3 files changed, 7 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index dcfdecbfa0b7..8c94b07e654a 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -48,8 +48,9 @@ enum {
NETIF_F_GSO_UDP_TUNNEL_BIT, /* ... UDP TUNNEL with TSO */
NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,/* ... UDP TUNNEL with TSO & CSUM */
NETIF_F_GSO_MPLS_BIT, /* ... MPLS segmentation */
+ NETIF_F_GSO_TUNNEL_REMCSUM_BIT, /* ... TUNNEL with TSO & REMCSUM */
/**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */
- NETIF_F_GSO_MPLS_BIT,
+ NETIF_F_GSO_TUNNEL_REMCSUM_BIT,
NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */
NETIF_F_SCTP_CSUM_BIT, /* SCTP checksum offload */
@@ -119,6 +120,7 @@ enum {
#define NETIF_F_GSO_UDP_TUNNEL __NETIF_F(GSO_UDP_TUNNEL)
#define NETIF_F_GSO_UDP_TUNNEL_CSUM __NETIF_F(GSO_UDP_TUNNEL_CSUM)
#define NETIF_F_GSO_MPLS __NETIF_F(GSO_MPLS)
+#define NETIF_F_GSO_TUNNEL_REMCSUM __NETIF_F(GSO_TUNNEL_REMCSUM)
#define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)
#define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX)
#define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5ed05bd764dc..4767f546d7c0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3584,6 +3584,7 @@ static inline bool net_gso_ok(netdev_features_t features, int gso_type)
BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL != (NETIF_F_GSO_UDP_TUNNEL >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL_CSUM != (NETIF_F_GSO_UDP_TUNNEL_CSUM >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_MPLS != (NETIF_F_GSO_MPLS >> NETIF_F_GSO_SHIFT));
+ BUILD_BUG_ON(SKB_GSO_TUNNEL_REMCSUM != (NETIF_F_GSO_TUNNEL_REMCSUM >> NETIF_F_GSO_SHIFT));
return (features & feature) == feature;
}
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5ad9675b6fe1..74ed34413969 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -373,6 +373,7 @@ enum {
SKB_GSO_MPLS = 1 << 12,
+ SKB_GSO_TUNNEL_REMCSUM = 1 << 13,
};
#if BITS_PER_LONG > 32
@@ -603,7 +604,8 @@ struct sk_buff {
#endif
__u8 ipvs_property:1;
__u8 inner_protocol_type:1;
- /* 4 or 6 bit hole */
+ __u8 remcsum_offload:1;
+ /* 3 or 5 bit hole */
#ifdef CONFIG_NET_SCHED
__u16 tc_index; /* traffic control index */
--
cgit v1.2.1
From c1aa8347e73e4092411fbd96cc59531fb7e76d04 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Tue, 4 Nov 2014 09:06:55 -0800
Subject: gue: Protocol constants for remote checksum offload
Define a private flag for remote checksun offload as well as a length
for the option.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/gue.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/gue.h b/include/net/gue.h
index cb68ae843c77..3f28ec7f1c7f 100644
--- a/include/net/gue.h
+++ b/include/net/gue.h
@@ -59,7 +59,10 @@ struct guehdr {
/* Private flags in the private option extension */
-#define GUE_PFLAGS_ALL (0)
+#define GUE_PFLAG_REMCSUM htonl(1 << 31)
+#define GUE_PLEN_REMCSUM 4
+
+#define GUE_PFLAGS_ALL (GUE_PFLAG_REMCSUM)
/* Functions to compute options length corresponding to flags.
* If we ever have a lot of flags this can be potentially be
--
cgit v1.2.1
From b17f709a24013fcbb257f6f89b4d81ac9fdf0d18 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Tue, 4 Nov 2014 09:06:56 -0800
Subject: gue: TX support for using remote checksum offload option
Add if_tunnel flag TUNNEL_ENCAP_FLAG_REMCSUM to configure
remote checksum offload on an IP tunnel. Add logic in gue_build_header
to insert remote checksum offload option.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/fou.h | 14 +++++++++++++-
include/uapi/linux/if_tunnel.h | 1 +
2 files changed, 14 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/fou.h b/include/net/fou.h
index cf4ce8874f92..25b26ffcf1df 100644
--- a/include/net/fou.h
+++ b/include/net/fou.h
@@ -20,7 +20,19 @@ static size_t fou_encap_hlen(struct ip_tunnel_encap *e)
static size_t gue_encap_hlen(struct ip_tunnel_encap *e)
{
- return sizeof(struct udphdr) + sizeof(struct guehdr);
+ size_t len;
+ bool need_priv = false;
+
+ len = sizeof(struct udphdr) + sizeof(struct guehdr);
+
+ if (e->flags & TUNNEL_ENCAP_FLAG_REMCSUM) {
+ len += GUE_PLEN_REMCSUM;
+ need_priv = true;
+ }
+
+ len += need_priv ? GUE_LEN_PRIV : 0;
+
+ return len;
}
#endif
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 280d9e092283..bd3cc11a431f 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -69,6 +69,7 @@ enum tunnel_encap_types {
#define TUNNEL_ENCAP_FLAG_CSUM (1<<0)
#define TUNNEL_ENCAP_FLAG_CSUM6 (1<<1)
+#define TUNNEL_ENCAP_FLAG_REMCSUM (1<<2)
/* SIT-mode i_flags */
#define SIT_ISATAP 0x0001
--
cgit v1.2.1
From 51f3d02b980a338cd291d2bc7629cdfb2568424b Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 5 Nov 2014 16:46:40 -0500
Subject: net: Add and use skb_copy_datagram_msg() helper.
This encapsulates all of the skb_copy_datagram_iovec() callers
with call argument signature "skb, offset, msghdr->msg_iov, length".
When we move to iov_iters in the networking, the iov_iter object will
sit in the msghdr.
Having a helper like this means there will be less places to touch
during that transformation.
Based upon descriptions and patch from Al Viro.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 74ed34413969..39ec7530ae27 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -21,6 +21,7 @@
#include <linux/bug.h>
#include <linux/cache.h>
#include <linux/rbtree.h>
+#include <linux/socket.h>
#include <linux/atomic.h>
#include <asm/types.h>
@@ -2639,6 +2640,11 @@ unsigned int datagram_poll(struct file *file, struct socket *sock,
struct poll_table_struct *wait);
int skb_copy_datagram_iovec(const struct sk_buff *from, int offset,
struct iovec *to, int size);
+static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset,
+ struct msghdr *msg, int size)
+{
+ return skb_copy_datagram_iovec(from, offset, msg->msg_iov, size);
+}
int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb, int hlen,
struct iovec *iov);
int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
--
cgit v1.2.1
From 25de4668d094f00e44a8f2428dd3c1a4ecfa0053 Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Tue, 4 Nov 2014 10:59:47 -0800
Subject: ipv6: move INET6_MATCH() to include/net/inet6_hashtables.h
It is only used in net/ipv6/inet6_hashtables.c.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/ipv6.h | 10 ----------
include/net/inet6_hashtables.h | 10 ++++++++++
2 files changed, 10 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 7121a2e97ce2..c694e7baa621 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -317,14 +317,4 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk)
#define tcp_twsk_ipv6only(__sk) 0
#define inet_v6_ipv6only(__sk) 0
#endif /* IS_ENABLED(CONFIG_IPV6) */
-
-#define INET6_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif) \
- (((__sk)->sk_portpair == (__ports)) && \
- ((__sk)->sk_family == AF_INET6) && \
- ipv6_addr_equal(&(__sk)->sk_v6_daddr, (__saddr)) && \
- ipv6_addr_equal(&(__sk)->sk_v6_rcv_saddr, (__daddr)) && \
- (!(__sk)->sk_bound_dev_if || \
- ((__sk)->sk_bound_dev_if == (__dif))) && \
- net_eq(sock_net(__sk), (__net)))
-
#endif /* _IPV6_H */
diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index d1d272843b3b..9201afe083fa 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -99,4 +99,14 @@ struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
const struct in6_addr *daddr, const __be16 dport,
const int dif);
#endif /* IS_ENABLED(CONFIG_IPV6) */
+
+#define INET6_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif) \
+ (((__sk)->sk_portpair == (__ports)) && \
+ ((__sk)->sk_family == AF_INET6) && \
+ ipv6_addr_equal(&(__sk)->sk_v6_daddr, (__saddr)) && \
+ ipv6_addr_equal(&(__sk)->sk_v6_rcv_saddr, (__daddr)) && \
+ (!(__sk)->sk_bound_dev_if || \
+ ((__sk)->sk_bound_dev_if == (__dif))) && \
+ net_eq(sock_net(__sk), (__net)))
+
#endif /* _INET6_HASHTABLES_H */
--
cgit v1.2.1
From 66f1c44887ba4f47d617f8ae21cf8e04e1892bd7 Mon Sep 17 00:00:00 2001
From: Gregory Fong <gregory.0xf0@gmail.com>
Date: Tue, 4 Nov 2014 11:21:21 -0800
Subject: bridge: include in6.h in if_bridge.h for struct in6_addr
if_bridge.h uses struct in6_addr ip6, but wasn't including the in6.h
header. Thomas Backlund originally sent a patch to do this, but this
revealed a redefinition issue: https://lkml.org/lkml/2013/1/13/116
The redefinition issue should have been fixed by the following Linux
commits:
ee262ad827f89e2dc7851ec2986953b5b125c6bc inet: defines IPPROTO_* needed for module alias generation
cfd280c91253cc28e4919e349fa7a813b63e71e8 net: sync some IP headers with glibc
and the following glibc commit:
6c82a2f8d7c8e21e39237225c819f182ae438db3 Coordinate IPv6 definitions for Linux and glibc
so actually include the header now.
Reported-by: Colin Guthrie <colin@mageia.org>
Reported-by: Christiaan Welvaart <cjw@daneel.dyndns.org>
Reported-by: Thomas Backlund <tmb@mageia.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_bridge.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 39f621a9fe82..da17e456908d 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -15,6 +15,7 @@
#include <linux/types.h>
#include <linux/if_ether.h>
+#include <linux/in6.h>
#define SYSFS_BRIDGE_ATTR "bridge"
#define SYSFS_BRIDGE_FDB "brforward"
--
cgit v1.2.1
From 096916610f415e07cfe71d71a391011c617be5ed Mon Sep 17 00:00:00 2001
From: Aaron Sierra <asierra@xes-inc.com>
Date: Tue, 26 Aug 2014 18:18:33 -0500
Subject: fsl_ifc: Support all 8 IFC chip selects
Freescale's QorIQ T Series processors support 8 IFC chip selects
within a memory map backward compatible with previous P Series
processors which supported only 4 chip selects.
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/fsl_ifc.h | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/fsl_ifc.h b/include/linux/fsl_ifc.h
index 84d60cb841b1..bf0321eabbda 100644
--- a/include/linux/fsl_ifc.h
+++ b/include/linux/fsl_ifc.h
@@ -29,7 +29,16 @@
#include <linux/of_platform.h>
#include <linux/interrupt.h>
-#define FSL_IFC_BANK_COUNT 4
+/*
+ * The actual number of banks implemented depends on the IFC version
+ * - IFC version 1.0 implements 4 banks.
+ * - IFC version 1.1 onward implements 8 banks.
+ */
+#define FSL_IFC_BANK_COUNT 8
+
+#define FSL_IFC_VERSION_MASK 0x0F0F0000
+#define FSL_IFC_VERSION_1_0_0 0x01000000
+#define FSL_IFC_VERSION_1_1_0 0x01010000
/*
* CSPR - Chip Select Property Register
@@ -776,23 +785,23 @@ struct fsl_ifc_regs {
__be32 cspr;
u32 res2;
} cspr_cs[FSL_IFC_BANK_COUNT];
- u32 res3[0x19];
+ u32 res3[0xd];
struct {
__be32 amask;
u32 res4[0x2];
} amask_cs[FSL_IFC_BANK_COUNT];
- u32 res5[0x18];
+ u32 res5[0xc];
struct {
__be32 csor;
__be32 csor_ext;
u32 res6;
} csor_cs[FSL_IFC_BANK_COUNT];
- u32 res7[0x18];
+ u32 res7[0xc];
struct {
__be32 ftim[4];
u32 res8[0x8];
} ftim_cs[FSL_IFC_BANK_COUNT];
- u32 res9[0x60];
+ u32 res9[0x30];
__be32 rb_stat;
u32 res10[0x2];
__be32 ifc_gcr;
@@ -827,6 +836,8 @@ struct fsl_ifc_ctrl {
int nand_irq;
spinlock_t lock;
void *nand;
+ int version;
+ int banks;
u32 nand_stat;
wait_queue_head_t nand_wait;
--
cgit v1.2.1
From d4260b51699082c7dea257bea002d79394e876e0 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Thu, 16 Oct 2014 14:19:47 -0400
Subject: serial: Fix upstat_t sparse warnings
Commit 299245a145b2ad4cfb4c5432eb1264299f55e7e0,
serial: core: Privatize modem status enable flags, introduced
the upstat_t type and matching bit definitions. The purpose is to
produce sparse warnings if the wrong bit definitions are used
(by warning of implicit integer conversions).
Fix implicit conversion to integer return type from uart_cts_enabled()
and uart_dcd_enabled().
Fixes the following sparse warnings:
drivers/tty/serial/serial_core.c:63:30: warning: incorrect type in return expression (different base types)
drivers/tty/serial/serial_core.c:63:30: expected int
drivers/tty/serial/serial_core.c:63:30: got restricted upstat_t
include/linux/serial_core.h:364:30: warning: incorrect type in return expression (different base types)
include/linux/serial_core.h:364:30: expected bool
include/linux/serial_core.h:364:30: got restricted upstat_t
include/linux/serial_core.h:364:30: warning: incorrect type in return expression (different base types)
include/linux/serial_core.h:364:30: expected bool
include/linux/serial_core.h:364:30: got restricted upstat_t
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 21c2e05c1bc3..bccf4bac22f5 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -367,7 +367,7 @@ static inline int uart_tx_stopped(struct uart_port *port)
static inline bool uart_cts_enabled(struct uart_port *uport)
{
- return uport->status & UPSTAT_CTS_ENABLE;
+ return !!(uport->status & UPSTAT_CTS_ENABLE);
}
/*
--
cgit v1.2.1
From 8f166e00196fcb16364c9c39dab6fe7b72e63f18 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Thu, 16 Oct 2014 14:59:41 -0400
Subject: tty: Remove tty_pair_get_tty()/tty_pair_get_pty() api
tty_pair_get_pty() has no in-tree users and tty_pair_get_tty()
has only one file-local user. Remove the external declarations,
the export declarations, and declare tty_pair_get_tty() static.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 5171ef8f7b85..b36b0b445c1f 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -498,9 +498,6 @@ extern int tty_init_termios(struct tty_struct *tty);
extern int tty_standard_install(struct tty_driver *driver,
struct tty_struct *tty);
-extern struct tty_struct *tty_pair_get_tty(struct tty_struct *tty);
-extern struct tty_struct *tty_pair_get_pty(struct tty_struct *tty);
-
extern struct mutex tty_mutex;
extern spinlock_t tty_files_lock;
--
cgit v1.2.1
From e1c2296c3485158304bfad5a80e89078463d70c8 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Thu, 16 Oct 2014 14:59:48 -0400
Subject: tty: Move session_of_pgrp() and make static
tiocspgrp() is the lone caller of session_of_pgrp(); relocate and
limit to file scope.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/kernel.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 3d770f5564b8..01bc530fbfcb 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -411,9 +411,6 @@ extern int __kernel_text_address(unsigned long addr);
extern int kernel_text_address(unsigned long addr);
extern int func_ptr_is_kernel_text(void *ptr);
-struct pid;
-extern struct pid *session_of_pgrp(struct pid *pgrp);
-
unsigned long int_sqrt(unsigned long);
extern void bust_spinlocks(int yes);
--
cgit v1.2.1
From 3ff51a199f9e85aed843471bc10dae9e94dbb0fc Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:12:46 -0500
Subject: tty: Remove TTY_HUPPING
Now that tty_ldisc_hangup() does not drop the tty lock, it is no
longer possible to observe TTY_HUPPING while holding the tty lock
on another cpu.
Remove TTY_HUPPING bit definition.
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index b36b0b445c1f..ff0dd7aeaf3b 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -321,7 +321,6 @@ struct tty_file_private {
#define TTY_PTY_LOCK 16 /* pty private */
#define TTY_NO_WRITE_SPLIT 17 /* Preserve write boundaries to driver */
#define TTY_HUPPED 18 /* Post driver->hangup() */
-#define TTY_HUPPING 21 /* ->hangup() in progress */
#define TTY_LDISC_HALTED 22 /* Line discipline is halted */
#define TTY_WRITE_FLUSH(tty) tty_write_flush((tty))
--
cgit v1.2.1
From 04980706c8febe41ec598116b174bd3a2dc82355 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:12:52 -0500
Subject: tty: Remove TTY_CLOSING
Now that re-open is not permitted for a legacy BSD pty master,
using TTY_CLOSING to indicate when a tty can be torn-down is
no longer necessary.
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index ff0dd7aeaf3b..35b29f0750f8 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -316,7 +316,6 @@ struct tty_file_private {
#define TTY_EXCLUSIVE 3 /* Exclusive open mode */
#define TTY_DEBUG 4 /* Debugging */
#define TTY_DO_WRITE_WAKEUP 5 /* Call write_wakeup after queuing new */
-#define TTY_CLOSING 7 /* ->close() in progress */
#define TTY_LDISC_OPEN 11 /* Line discipline is open */
#define TTY_PTY_LOCK 16 /* pty private */
#define TTY_NO_WRITE_SPLIT 17 /* Preserve write boundaries to driver */
--
cgit v1.2.1
From 62462aefeb5aff092fc97037d9c12a4afe95a3ff Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:12:58 -0500
Subject: tty: Simplify tty_ldisc_release() interface
Passing the 'other' tty to tty_ldisc_release() only makes sense
for a pty pair; make o_tty function local instead.
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 35b29f0750f8..af1a7f3e4e4a 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -557,7 +557,7 @@ extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
extern int tty_unregister_ldisc(int disc);
extern int tty_set_ldisc(struct tty_struct *tty, int ldisc);
extern int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty);
-extern void tty_ldisc_release(struct tty_struct *tty, struct tty_struct *o_tty);
+extern void tty_ldisc_release(struct tty_struct *tty);
extern void tty_ldisc_init(struct tty_struct *tty);
extern void tty_ldisc_deinit(struct tty_struct *tty);
extern void tty_ldisc_begin(void);
--
cgit v1.2.1
From 2aff5e2bc62db43e05c814461a08aff0fc2b7fe5 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:13:01 -0500
Subject: tty: Change tty lock order to master->slave
When releasing the master pty, the slave pty also needs to be locked
to prevent concurrent tty count changes for the slave pty and to
ensure that only one parallel master and slave release observe the
final close, and proceed to destruct the pty pair. Conversely, when
releasing the slave pty, locking the master pty is not necessary
(since the master's state can be inferred by the slave tty count).
Introduce tty_lock_slave()/tty_unlock_slave() which acquires/releases
the tty lock of the slave pty. Remove tty_lock_pair()/tty_unlock_pair().
Dropping the tty_lock is no longer required to re-establish a stable
lock order.
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index af1a7f3e4e4a..a07b4b415db8 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -638,11 +638,8 @@ extern long vt_compat_ioctl(struct tty_struct *tty,
/* functions for preparation of BKL removal */
extern void __lockfunc tty_lock(struct tty_struct *tty);
extern void __lockfunc tty_unlock(struct tty_struct *tty);
-extern void __lockfunc tty_lock_pair(struct tty_struct *tty,
- struct tty_struct *tty2);
-extern void __lockfunc tty_unlock_pair(struct tty_struct *tty,
- struct tty_struct *tty2);
-
+extern void __lockfunc tty_lock_slave(struct tty_struct *tty);
+extern void __lockfunc tty_unlock_slave(struct tty_struct *tty);
/*
* this shall be called only from where BTM is held (like close)
*
--
cgit v1.2.1
From 2febdb632bb96235b94b8fccaf882a78f8f4b2bb Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:13:02 -0500
Subject: tty: Preset lock subclass for nested tty locks
Eliminate the requirement of specifying the tty lock nesting at
lock time; instead, set the lock subclass for slave ptys at pty
install (normal ttys and master ptys use subclass 0).
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index a07b4b415db8..196c352a5ce8 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -640,6 +640,7 @@ extern void __lockfunc tty_lock(struct tty_struct *tty);
extern void __lockfunc tty_unlock(struct tty_struct *tty);
extern void __lockfunc tty_lock_slave(struct tty_struct *tty);
extern void __lockfunc tty_unlock_slave(struct tty_struct *tty);
+extern void tty_set_lock_subclass(struct tty_struct *tty);
/*
* this shall be called only from where BTM is held (like close)
*
--
cgit v1.2.1
From 35af935ee47eb4548e0052733e9d75328e260fa1 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:13:03 -0500
Subject: tty: Remove tty_unhangup() declaration
The tty_unhangup() function is not defined.
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 196c352a5ce8..e33ea1a0c2d0 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -435,7 +435,6 @@ extern int is_ignored(int sig);
extern int tty_signal(int sig, struct tty_struct *tty);
extern void tty_hangup(struct tty_struct *tty);
extern void tty_vhangup(struct tty_struct *tty);
-extern void tty_unhangup(struct file *filp);
extern int tty_hung_up_p(struct file *filp);
extern void do_SAK(struct tty_struct *tty);
extern void __do_SAK(struct tty_struct *tty);
--
cgit v1.2.1
From 86c80a8e2ab443e9c4261b3499de4ce808399104 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:13:09 -0500
Subject: tty: Flush ldisc buffer atomically with tty flip buffers
tty_ldisc_flush() first clears the line discipline input buffer,
then clears the tty flip buffers. However, this allows for existing
data in the tty flip buffers to be added after the ldisc input
buffer has been cleared, but before the flip buffers have been cleared.
Add an optional ldisc parameter to tty_buffer_flush() to allow
tty_ldisc_flush() to pass the ldisc to clear.
NB: Initially, the plan was to do this automatically in
tty_buffer_flush(). However, an audit of the behavior of existing
line disciplines showed that performing a ldisc buffer flush on
ioctl(TCFLSH) was not always the outcome. For example, some line
disciplines have flush_buffer() methods but not ioctl() methods,
so a ->flush_buffer() command would be unexpected.
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index e33ea1a0c2d0..f6835ea1079a 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -441,7 +441,7 @@ extern void __do_SAK(struct tty_struct *tty);
extern void no_tty(void);
extern void tty_flush_to_ldisc(struct tty_struct *tty);
extern void tty_buffer_free_all(struct tty_port *port);
-extern void tty_buffer_flush(struct tty_struct *tty);
+extern void tty_buffer_flush(struct tty_struct *tty, struct tty_ldisc *ld);
extern void tty_buffer_init(struct tty_port *port);
extern speed_t tty_termios_baud_rate(struct ktermios *termios);
extern speed_t tty_termios_input_baud_rate(struct ktermios *termios);
--
cgit v1.2.1
From 904326ecac022ebaeb39cdfb206fd3b6551cdfca Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Thu, 16 Oct 2014 16:54:21 -0400
Subject: tty,serial: Unify UPF_* and ASYNC_* flag definitions
The userspace-defined ASYNC_* flags in include/uapi/linux/tty_flags.h
are the authoritative bit definitions for the serial_struct flags,
and thus for any derivative values or fields.
Although the serial core provides the TIOCSSERIAL and TIOCGSERIAL
ioctls to set and retrieve these flags from userspace, it defines these
bits independently, as UPF_* macros.
Define the UPF_* macros which are userspace-modifiable directly from
the ASYNC_* symbolic constants. Add compile-time test to ensure the
bits changeable by TIOCSSERIAL match the defined range in the uapi
header.
Add ASYNCB_MAGIC_MULTIPLIER to the uapi header since this bit is
programmable by userspace.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 47 ++++++++++++++++++++++++++++--------------
include/uapi/linux/tty_flags.h | 6 +++++-
2 files changed, 37 insertions(+), 16 deletions(-)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index bccf4bac22f5..ad9329669aba 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -160,21 +160,33 @@ struct uart_port {
/* flags must be updated while holding port mutex */
upf_t flags;
-#define UPF_FOURPORT ((__force upf_t) (1 << 1))
-#define UPF_SAK ((__force upf_t) (1 << 2))
-#define UPF_SPD_MASK ((__force upf_t) (0x1030))
-#define UPF_SPD_HI ((__force upf_t) (0x0010))
-#define UPF_SPD_VHI ((__force upf_t) (0x0020))
-#define UPF_SPD_CUST ((__force upf_t) (0x0030))
-#define UPF_SPD_SHI ((__force upf_t) (0x1000))
-#define UPF_SPD_WARP ((__force upf_t) (0x1010))
-#define UPF_SKIP_TEST ((__force upf_t) (1 << 6))
-#define UPF_AUTO_IRQ ((__force upf_t) (1 << 7))
-#define UPF_HARDPPS_CD ((__force upf_t) (1 << 11))
-#define UPF_LOW_LATENCY ((__force upf_t) (1 << 13))
-#define UPF_BUGGY_UART ((__force upf_t) (1 << 14))
+ /*
+ * These flags must be equivalent to the flags defined in
+ * include/uapi/linux/tty_flags.h which are the userspace definitions
+ * assigned from the serial_struct flags in uart_set_info()
+ * [for bit definitions in the UPF_CHANGE_MASK]
+ *
+ * Bits [0..UPF_LAST_USER] are userspace defined/visible/changeable
+ * except bit 15 (UPF_NO_TXEN_TEST) which is masked off.
+ * The remaining bits are serial-core specific and not modifiable by
+ * userspace.
+ */
+#define UPF_FOURPORT ((__force upf_t) ASYNC_FOURPORT /* 1 */ )
+#define UPF_SAK ((__force upf_t) ASYNC_SAK /* 2 */ )
+#define UPF_SPD_HI ((__force upf_t) ASYNC_SPD_HI /* 4 */ )
+#define UPF_SPD_VHI ((__force upf_t) ASYNC_SPD_VHI /* 5 */ )
+#define UPF_SPD_CUST ((__force upf_t) ASYNC_SPD_CUST /* 0x0030 */ )
+#define UPF_SPD_WARP ((__force upf_t) ASYNC_SPD_WARP /* 0x1010 */ )
+#define UPF_SPD_MASK ((__force upf_t) ASYNC_SPD_MASK /* 0x1030 */ )
+#define UPF_SKIP_TEST ((__force upf_t) ASYNC_SKIP_TEST /* 6 */ )
+#define UPF_AUTO_IRQ ((__force upf_t) ASYNC_AUTO_IRQ /* 7 */ )
+#define UPF_HARDPPS_CD ((__force upf_t) ASYNC_HARDPPS_CD /* 11 */ )
+#define UPF_SPD_SHI ((__force upf_t) ASYNC_SPD_SHI /* 12 */ )
+#define UPF_LOW_LATENCY ((__force upf_t) ASYNC_LOW_LATENCY /* 13 */ )
+#define UPF_BUGGY_UART ((__force upf_t) ASYNC_BUGGY_UART /* 14 */ )
#define UPF_NO_TXEN_TEST ((__force upf_t) (1 << 15))
-#define UPF_MAGIC_MULTIPLIER ((__force upf_t) (1 << 16))
+#define UPF_MAGIC_MULTIPLIER ((__force upf_t) ASYNC_MAGIC_MULTIPLIER /* 16 */ )
+
/* Port has hardware-assisted h/w flow control (iow, auto-RTS *not* auto-CTS) */
#define UPF_HARD_FLOW ((__force upf_t) (1 << 21))
/* Port has hardware-assisted s/w flow control */
@@ -190,9 +202,14 @@ struct uart_port {
#define UPF_DEAD ((__force upf_t) (1 << 30))
#define UPF_IOREMAP ((__force upf_t) (1 << 31))
-#define UPF_CHANGE_MASK ((__force upf_t) (0x17fff))
+#define __UPF_CHANGE_MASK 0x17fff
+#define UPF_CHANGE_MASK ((__force upf_t) __UPF_CHANGE_MASK)
#define UPF_USR_MASK ((__force upf_t) (UPF_SPD_MASK|UPF_LOW_LATENCY))
+#if __UPF_CHANGE_MASK > ASYNC_FLAGS
+#error Change mask not equivalent to userspace-visible bit defines
+#endif
+
/* status must be updated while holding port lock */
upstat_t status;
diff --git a/include/uapi/linux/tty_flags.h b/include/uapi/linux/tty_flags.h
index eefcb483a2c0..7b516f7ee7e6 100644
--- a/include/uapi/linux/tty_flags.h
+++ b/include/uapi/linux/tty_flags.h
@@ -6,6 +6,8 @@
* shared by the tty_port flags structures.
*
* Define ASYNCB_* for convenient use with {test,set,clear}_bit.
+ *
+ * Bits [0..ASYNCB_LAST_USER] are userspace defined/visible/changeable
*/
#define ASYNCB_HUP_NOTIFY 0 /* Notify getty on hangups and closes
* on the callout port */
@@ -26,7 +28,8 @@
#define ASYNCB_BUGGY_UART 14 /* This is a buggy UART, skip some safety
* checks. Note: can be dangerous! */
#define ASYNCB_AUTOPROBE 15 /* Port was autoprobed by PCI or PNP code */
-#define ASYNCB_LAST_USER 15
+#define ASYNCB_MAGIC_MULTIPLIER 16 /* Use special CLK or divisor */
+#define ASYNCB_LAST_USER 16
/* Internal flags used only by kernel */
#define ASYNCB_INITIALIZED 31 /* Serial port was initialized */
@@ -57,6 +60,7 @@
#define ASYNC_LOW_LATENCY (1U << ASYNCB_LOW_LATENCY)
#define ASYNC_BUGGY_UART (1U << ASYNCB_BUGGY_UART)
#define ASYNC_AUTOPROBE (1U << ASYNCB_AUTOPROBE)
+#define ASYNC_MAGIC_MULTIPLIER (1U << ASYNCB_MAGIC_MULTIPLIER)
#define ASYNC_FLAGS ((1U << (ASYNCB_LAST_USER + 1)) - 1)
#define ASYNC_USR_MASK (ASYNC_SPD_MASK|ASYNC_CALLOUT_NOHUP| \
--
cgit v1.2.1
From 352f86187e1d3e9e27d3be237103dc83a48f882c Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Thu, 16 Oct 2014 16:54:22 -0400
Subject: tty: Document defunct ASYNC_* bits in uapi header
Note the serial_struct flags for which the kernel ignores and performs
no action. The flags cannot be removed since they form part of the
userspace interface via the TIOCSSERIAL/TIOCGSERIAL ioctls.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/tty_flags.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/tty_flags.h b/include/uapi/linux/tty_flags.h
index 7b516f7ee7e6..4e021e31c219 100644
--- a/include/uapi/linux/tty_flags.h
+++ b/include/uapi/linux/tty_flags.h
@@ -8,6 +8,7 @@
* Define ASYNCB_* for convenient use with {test,set,clear}_bit.
*
* Bits [0..ASYNCB_LAST_USER] are userspace defined/visible/changeable
+ * [x] in the bit comments indicates the flag is defunct and no longer used.
*/
#define ASYNCB_HUP_NOTIFY 0 /* Notify getty on hangups and closes
* on the callout port */
@@ -19,15 +20,15 @@
#define ASYNCB_SKIP_TEST 6 /* Skip UART test during autoconfiguration */
#define ASYNCB_AUTO_IRQ 7 /* Do automatic IRQ during
* autoconfiguration */
-#define ASYNCB_SESSION_LOCKOUT 8 /* Lock out cua opens based on session */
-#define ASYNCB_PGRP_LOCKOUT 9 /* Lock out cua opens based on pgrp */
-#define ASYNCB_CALLOUT_NOHUP 10 /* Don't do hangups for cua device */
+#define ASYNCB_SESSION_LOCKOUT 8 /* [x] Lock out cua opens based on session */
+#define ASYNCB_PGRP_LOCKOUT 9 /* [x] Lock out cua opens based on pgrp */
+#define ASYNCB_CALLOUT_NOHUP 10 /* [x] Don't do hangups for cua device */
#define ASYNCB_HARDPPS_CD 11 /* Call hardpps when CD goes high */
#define ASYNCB_SPD_SHI 12 /* Use 230400 instead of 38400 bps */
#define ASYNCB_LOW_LATENCY 13 /* Request low latency behaviour */
#define ASYNCB_BUGGY_UART 14 /* This is a buggy UART, skip some safety
* checks. Note: can be dangerous! */
-#define ASYNCB_AUTOPROBE 15 /* Port was autoprobed by PCI or PNP code */
+#define ASYNCB_AUTOPROBE 15 /* [x] Port was autoprobed by PCI/PNP code */
#define ASYNCB_MAGIC_MULTIPLIER 16 /* Use special CLK or divisor */
#define ASYNCB_LAST_USER 16
--
cgit v1.2.1
From e5a2c899957659cd1a9f789bc462f9c0b35f5150 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 5 Nov 2014 00:23:04 +0100
Subject: fast_hash: avoid indirect function calls
By default the arch_fast_hash hashing function pointers are initialized
to jhash(2). If during boot-up a CPU with SSE4.2 is detected they get
updated to the CRC32 ones. This dispatching scheme incurs a function
pointer lookup and indirect call for every hashing operation.
rhashtable as a user of arch_fast_hash e.g. stores pointers to hashing
functions in its structure, too, causing two indirect branches per
hashing operation.
Using alternative_call we can get away with one of those indirect branches.
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/asm-generic/hash.h | 36 ++++++++++++++++++++++++++++++++++--
include/linux/hash.h | 34 ----------------------------------
2 files changed, 34 insertions(+), 36 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/hash.h b/include/asm-generic/hash.h
index b6312843dbd9..3c82760ff2a4 100644
--- a/include/asm-generic/hash.h
+++ b/include/asm-generic/hash.h
@@ -1,9 +1,41 @@
#ifndef __ASM_GENERIC_HASH_H
#define __ASM_GENERIC_HASH_H
-struct fast_hash_ops;
-static inline void setup_arch_fast_hash(struct fast_hash_ops *ops)
+#include <linux/jhash.h>
+
+/**
+ * arch_fast_hash - Caclulates a hash over a given buffer that can have
+ * arbitrary size. This function will eventually use an
+ * architecture-optimized hashing implementation if
+ * available, and trades off distribution for speed.
+ *
+ * @data: buffer to hash
+ * @len: length of buffer in bytes
+ * @seed: start seed
+ *
+ * Returns 32bit hash.
+ */
+static inline u32 arch_fast_hash(const void *data, u32 len, u32 seed)
+{
+ return jhash(data, len, seed);
+}
+
+/**
+ * arch_fast_hash2 - Caclulates a hash over a given buffer that has a
+ * size that is of a multiple of 32bit words. This
+ * function will eventually use an architecture-
+ * optimized hashing implementation if available,
+ * and trades off distribution for speed.
+ *
+ * @data: buffer to hash (must be 32bit padded)
+ * @len: number of 32bit words
+ * @seed: start seed
+ *
+ * Returns 32bit hash.
+ */
+static inline u32 arch_fast_hash2(const u32 *data, u32 len, u32 seed)
{
+ return jhash2(data, len, seed);
}
#endif /* __ASM_GENERIC_HASH_H */
diff --git a/include/linux/hash.h b/include/linux/hash.h
index d0494c399392..6e8fb028848c 100644
--- a/include/linux/hash.h
+++ b/include/linux/hash.h
@@ -84,38 +84,4 @@ static inline u32 hash32_ptr(const void *ptr)
return (u32)val;
}
-struct fast_hash_ops {
- u32 (*hash)(const void *data, u32 len, u32 seed);
- u32 (*hash2)(const u32 *data, u32 len, u32 seed);
-};
-
-/**
- * arch_fast_hash - Caclulates a hash over a given buffer that can have
- * arbitrary size. This function will eventually use an
- * architecture-optimized hashing implementation if
- * available, and trades off distribution for speed.
- *
- * @data: buffer to hash
- * @len: length of buffer in bytes
- * @seed: start seed
- *
- * Returns 32bit hash.
- */
-extern u32 arch_fast_hash(const void *data, u32 len, u32 seed);
-
-/**
- * arch_fast_hash2 - Caclulates a hash over a given buffer that has a
- * size that is of a multiple of 32bit words. This
- * function will eventually use an architecture-
- * optimized hashing implementation if available,
- * and trades off distribution for speed.
- *
- * @data: buffer to hash (must be 32bit padded)
- * @len: number of 32bit words
- * @seed: start seed
- *
- * Returns 32bit hash.
- */
-extern u32 arch_fast_hash2(const u32 *data, u32 len, u32 seed);
-
#endif /* _LINUX_HASH_H */
--
cgit v1.2.1
From 31a171328e870c9f65d01191e51a75cde5f78ffd Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 29 Sep 2014 20:06:43 +0200
Subject: tty: serial: 8250_omap: add custom DMA-TX callback
This patch provides mostly a copy of serial8250_tx_dma() +
__dma_tx_complete() with the following extensions:
- DMA bug
At least on AM335x the following problem exists: Even if the TX FIFO is
empty and a TX transfer is programmed (and started) the UART does not
trigger the DMA transfer.
After $TRESHOLD number of bytes have been written to the FIFO manually the
UART reevaluates the whole situation and decides that now there is enough
room in the FIFO and so the transfer begins.
This problem has not been seen on DRA7 or beagle board xm (OMAP3). I am not
sure if this is UART-IP core specific or DMA engine.
The workaround is to use a threshold of one byte, program the DMA
transfer minus one byte and then to put the first byte into the FIFO to
kick start the transfer.
- support for runtime PM
RPM is enabled on start_tx(). We can't disable RPM on DMA complete callback
because there is still data in the FIFO which is being sent. We have to wait
until the FIFO is empty before we disable it.
For this to happen we fake a TX sent error and enable THRI. Once the
FIFO is empty we receive an interrupt and since the TTY-buffer is still
empty we "put RPM" via __stop_tx(). Should it been filed then in the
start_tx() path we should program the DMA transfer and remove the error
flag and the THRI bit.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/serial_reg.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h
index df6c9ab6b0cd..53af3b790129 100644
--- a/include/uapi/linux/serial_reg.h
+++ b/include/uapi/linux/serial_reg.h
@@ -359,6 +359,7 @@
#define UART_OMAP_SYSC 0x15 /* System configuration register */
#define UART_OMAP_SYSS 0x16 /* System status register */
#define UART_OMAP_WER 0x17 /* Wake-up enable register */
+#define UART_OMAP_TX_LVL 0x1a /* TX FIFO level register */
/*
* These are the definitions for the MDR1 register
--
cgit v1.2.1
From 1d597e7c266658697843352c5c030e20f48c6230 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:26:26 -0500
Subject: tty: Remove defunct pcxe_open() declaration
pcxe_open() has no definition in mainline; remove declaration.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index f6835ea1079a..97cfb3108e29 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -621,10 +621,6 @@ extern long n_tty_compat_ioctl_helper(struct tty_struct *tty, struct file *file,
extern void serial_console_init(void);
-/* pcxx.c */
-
-extern int pcxe_open(struct tty_struct *tty, struct file *filp);
-
/* vt.c */
extern int vt_ioctl(struct tty_struct *tty,
--
cgit v1.2.1
From b9104f5cec3b7d8fb4068bce5ddc8240dc7b81f7 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:26:27 -0500
Subject: tty: Remove defunct serial_console_init() declaration
serial_console_init() is not defined by the tty core; remove
declaration.
Note that the powerpc arch boot code contains a serial_console_init()
declaration in arch/powerpc/boot/ops.h which is restricted to
the powerpc arch boot.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 97cfb3108e29..c52a689e09aa 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -617,10 +617,6 @@ extern int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
extern long n_tty_compat_ioctl_helper(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
-/* serial.c */
-
-extern void serial_console_init(void);
-
/* vt.c */
extern int vt_ioctl(struct tty_struct *tty,
--
cgit v1.2.1
From 5ac9c05d789044d30735402f387355a394ec8e18 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:26:30 -0500
Subject: tty: Document defunct ASYNC_SPLIT_TERMIOS flag in uapi header
The last vestige of ASYNC_SPLIT_TERMIOS was removed by commit
'cris: Remove obsolete ASYNC_SPLIT_TERMIOS behavior'. Mark the flag
as defunct in the uapi header.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/tty_flags.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/tty_flags.h b/include/uapi/linux/tty_flags.h
index 4e021e31c219..d2bc4ff94f43 100644
--- a/include/uapi/linux/tty_flags.h
+++ b/include/uapi/linux/tty_flags.h
@@ -14,7 +14,7 @@
* on the callout port */
#define ASYNCB_FOURPORT 1 /* Set OU1, OUT2 per AST Fourport settings */
#define ASYNCB_SAK 2 /* Secure Attention Key (Orange book) */
-#define ASYNCB_SPLIT_TERMIOS 3 /* Separate termios for dialin/callout */
+#define ASYNCB_SPLIT_TERMIOS 3 /* [x] Separate termios for dialin/callout */
#define ASYNCB_SPD_HI 4 /* Use 56000 instead of 38400 bps */
#define ASYNCB_SPD_VHI 5 /* Use 115200 instead of 38400 bps */
#define ASYNCB_SKIP_TEST 6 /* Skip UART test during autoconfiguration */
--
cgit v1.2.1
From 68952076e9226cc23ebce66d3fc2fdb8b6c04c30 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:26:31 -0500
Subject: vt: Remove vt_get_kmsg_redirect() from uapi header
vt_get_kmsg_redirect() only has meaning to the console driver as
an alias for calling vt_kmsg_redirect(). Move the macro definition
to the only source file which uses it; remove from uapi/linux/vt.h
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/vt.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/vt.h b/include/uapi/linux/vt.h
index 4b59a26799a3..978578bd1895 100644
--- a/include/uapi/linux/vt.h
+++ b/include/uapi/linux/vt.h
@@ -84,7 +84,4 @@ struct vt_setactivate {
#define VT_SETACTIVATE 0x560F /* Activate and set the mode of a console */
-
-#define vt_get_kmsg_redirect() vt_kmsg_redirect(-1)
-
#endif /* _UAPI_LINUX_VT_H */
--
cgit v1.2.1
From e1f7c9eee70730d7e6ec77f7ecc76f936e262cf0 Mon Sep 17 00:00:00 2001
From: Ludovic Desroches <ludovic.desroches@atmel.com>
Date: Wed, 22 Oct 2014 17:22:18 +0200
Subject: dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller
driver
New atmel DMA controller known as XDMAC, introduced with SAMA5D4
devices.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/dt-bindings/dma/at91.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/dma/at91.h b/include/dt-bindings/dma/at91.h
index e835037a77b4..ab6cbba45401 100644
--- a/include/dt-bindings/dma/at91.h
+++ b/include/dt-bindings/dma/at91.h
@@ -9,6 +9,8 @@
#ifndef __DT_BINDINGS_AT91_DMA_H__
#define __DT_BINDINGS_AT91_DMA_H__
+/* ---------- HDMAC ---------- */
+
/*
* Source and/or destination peripheral ID
*/
@@ -24,4 +26,27 @@
#define AT91_DMA_CFG_FIFOCFG_ALAP (0x1 << AT91_DMA_CFG_FIFOCFG_OFFSET) /* largest defined AHB burst */
#define AT91_DMA_CFG_FIFOCFG_ASAP (0x2 << AT91_DMA_CFG_FIFOCFG_OFFSET) /* single AHB access */
+
+/* ---------- XDMAC ---------- */
+#define AT91_XDMAC_DT_MEM_IF_MASK (0x1)
+#define AT91_XDMAC_DT_MEM_IF_OFFSET (13)
+#define AT91_XDMAC_DT_MEM_IF(mem_if) (((mem_if) & AT91_XDMAC_DT_MEM_IF_MASK) \
+ << AT91_XDMAC_DT_MEM_IF_OFFSET)
+#define AT91_XDMAC_DT_GET_MEM_IF(cfg) (((cfg) >> AT91_XDMAC_DT_MEM_IF_OFFSET) \
+ & AT91_XDMAC_DT_MEM_IF_MASK)
+
+#define AT91_XDMAC_DT_PER_IF_MASK (0x1)
+#define AT91_XDMAC_DT_PER_IF_OFFSET (14)
+#define AT91_XDMAC_DT_PER_IF(per_if) (((per_if) & AT91_XDMAC_DT_PER_IF_MASK) \
+ << AT91_XDMAC_DT_PER_IF_OFFSET)
+#define AT91_XDMAC_DT_GET_PER_IF(cfg) (((cfg) >> AT91_XDMAC_DT_PER_IF_OFFSET) \
+ & AT91_XDMAC_DT_PER_IF_MASK)
+
+#define AT91_XDMAC_DT_PERID_MASK (0x7f)
+#define AT91_XDMAC_DT_PERID_OFFSET (24)
+#define AT91_XDMAC_DT_PERID(perid) (((perid) & AT91_XDMAC_DT_PERID_MASK) \
+ << AT91_XDMAC_DT_PERID_OFFSET)
+#define AT91_XDMAC_DT_GET_PERID(cfg) (((cfg) >> AT91_XDMAC_DT_PERID_OFFSET) \
+ & AT91_XDMAC_DT_PERID_MASK)
+
#endif /* __DT_BINDINGS_AT91_DMA_H__ */
--
cgit v1.2.1
From 59b93b41e7fa71138734a911b11b044340dd16bd Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Wed, 5 Nov 2014 15:27:48 -0800
Subject: net: Remove MPLS GSO feature.
Device can export MPLS GSO support in dev->mpls_features same way
it export vlan features in dev->vlan_features. So it is safe to
remove NETIF_F_GSO_MPLS redundant flag.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
---
include/linux/netdev_features.h | 5 +----
include/linux/netdevice.h | 1 -
include/linux/skbuff.h | 4 +---
3 files changed, 2 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 8c94b07e654a..8e30685affeb 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -47,7 +47,6 @@ enum {
NETIF_F_GSO_SIT_BIT, /* ... SIT tunnel with TSO */
NETIF_F_GSO_UDP_TUNNEL_BIT, /* ... UDP TUNNEL with TSO */
NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT,/* ... UDP TUNNEL with TSO & CSUM */
- NETIF_F_GSO_MPLS_BIT, /* ... MPLS segmentation */
NETIF_F_GSO_TUNNEL_REMCSUM_BIT, /* ... TUNNEL with TSO & REMCSUM */
/**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */
NETIF_F_GSO_TUNNEL_REMCSUM_BIT,
@@ -119,7 +118,6 @@ enum {
#define NETIF_F_GSO_SIT __NETIF_F(GSO_SIT)
#define NETIF_F_GSO_UDP_TUNNEL __NETIF_F(GSO_UDP_TUNNEL)
#define NETIF_F_GSO_UDP_TUNNEL_CSUM __NETIF_F(GSO_UDP_TUNNEL_CSUM)
-#define NETIF_F_GSO_MPLS __NETIF_F(GSO_MPLS)
#define NETIF_F_GSO_TUNNEL_REMCSUM __NETIF_F(GSO_TUNNEL_REMCSUM)
#define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)
#define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX)
@@ -183,7 +181,6 @@ enum {
NETIF_F_GSO_IPIP | \
NETIF_F_GSO_SIT | \
NETIF_F_GSO_UDP_TUNNEL | \
- NETIF_F_GSO_UDP_TUNNEL_CSUM | \
- NETIF_F_GSO_MPLS)
+ NETIF_F_GSO_UDP_TUNNEL_CSUM)
#endif /* _LINUX_NETDEV_FEATURES_H */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 4767f546d7c0..90ac95900a11 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3583,7 +3583,6 @@ static inline bool net_gso_ok(netdev_features_t features, int gso_type)
BUILD_BUG_ON(SKB_GSO_SIT != (NETIF_F_GSO_SIT >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL != (NETIF_F_GSO_UDP_TUNNEL >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL_CSUM != (NETIF_F_GSO_UDP_TUNNEL_CSUM >> NETIF_F_GSO_SHIFT));
- BUILD_BUG_ON(SKB_GSO_MPLS != (NETIF_F_GSO_MPLS >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_TUNNEL_REMCSUM != (NETIF_F_GSO_TUNNEL_REMCSUM >> NETIF_F_GSO_SHIFT));
return (features & feature) == feature;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 39ec7530ae27..53f4f6c93356 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -372,9 +372,7 @@ enum {
SKB_GSO_UDP_TUNNEL_CSUM = 1 << 11,
- SKB_GSO_MPLS = 1 << 12,
-
- SKB_GSO_TUNNEL_REMCSUM = 1 << 13,
+ SKB_GSO_TUNNEL_REMCSUM = 1 << 12,
};
#if BITS_PER_LONG > 32
--
cgit v1.2.1
From 25cd9ba0abc0749e5cb78e6493c6f6b3311ec6c5 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Mon, 6 Oct 2014 05:05:13 -0700
Subject: openvswitch: Add basic MPLS support to kernel
Allow datapath to recognize and extract MPLS labels into flow keys
and execute actions which push, pop, and set labels on packets.
Based heavily on work by Leo Alterman, Ravi K, Isaku Yamahata and Joe Stringer.
Cc: Ravi K <rkerur@gmail.com>
Cc: Leo Alterman <lalterman@nicira.com>
Cc: Isaku Yamahata <yamahata@valinux.co.jp>
Cc: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
---
include/net/mpls.h | 39 +++++++++++++++++++++++++++++++++++++++
include/uapi/linux/openvswitch.h | 32 ++++++++++++++++++++++++++++++++
2 files changed, 71 insertions(+)
create mode 100644 include/net/mpls.h
(limited to 'include')
diff --git a/include/net/mpls.h b/include/net/mpls.h
new file mode 100644
index 000000000000..5b3b5addfb08
--- /dev/null
+++ b/include/net/mpls.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2014 Nicira, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef _NET_MPLS_H
+#define _NET_MPLS_H 1
+
+#include <linux/if_ether.h>
+#include <linux/netdevice.h>
+
+#define MPLS_HLEN 4
+
+static inline bool eth_p_mpls(__be16 eth_type)
+{
+ return eth_type == htons(ETH_P_MPLS_UC) ||
+ eth_type == htons(ETH_P_MPLS_MC);
+}
+
+/*
+ * For non-MPLS skbs this will correspond to the network header.
+ * For MPLS skbs it will be before the network_header as the MPLS
+ * label stack lies between the end of the mac header and the network
+ * header. That is, for MPLS skbs the end of the mac header
+ * is the top of the MPLS label stack.
+ */
+static inline unsigned char *skb_mpls_header(struct sk_buff *skb)
+{
+ return skb_mac_header(skb) + skb->mac_len;
+}
+#endif
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 435eabc5ffaa..631056b66f80 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -293,6 +293,9 @@ enum ovs_key_attr {
OVS_KEY_ATTR_DP_HASH, /* u32 hash value. Value 0 indicates the hash
is not computed by the datapath. */
OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
+ OVS_KEY_ATTR_MPLS, /* array of struct ovs_key_mpls.
+ * The implementation may restrict
+ * the accepted length of the array. */
#ifdef __KERNEL__
OVS_KEY_ATTR_TUNNEL_INFO, /* struct ovs_tunnel_info */
@@ -340,6 +343,10 @@ struct ovs_key_ethernet {
__u8 eth_dst[ETH_ALEN];
};
+struct ovs_key_mpls {
+ __be32 mpls_lse;
+};
+
struct ovs_key_ipv4 {
__be32 ipv4_src;
__be32 ipv4_dst;
@@ -483,6 +490,19 @@ enum ovs_userspace_attr {
#define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
+/**
+ * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument.
+ * @mpls_lse: MPLS label stack entry to push.
+ * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
+ *
+ * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
+ * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
+ */
+struct ovs_action_push_mpls {
+ __be32 mpls_lse;
+ __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
+};
+
/**
* struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
* @vlan_tpid: Tag protocol identifier (TPID) to push.
@@ -534,6 +554,15 @@ struct ovs_action_hash {
* @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet.
* @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
* the nested %OVS_SAMPLE_ATTR_* attributes.
+ * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the
+ * top of the packets MPLS label stack. Set the ethertype of the
+ * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to
+ * indicate the new packet contents.
+ * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the
+ * packet's MPLS label stack. Set the encapsulating frame's ethertype to
+ * indicate the new packet contents. This could potentially still be
+ * %ETH_P_MPLS if the resulting MPLS label stack is not empty. If there
+ * is no MPLS label stack, as determined by ethertype, no action is taken.
*
* Only a single header can be set with a single %OVS_ACTION_ATTR_SET. Not all
* fields within a header are modifiable, e.g. the IPv4 protocol and fragment
@@ -550,6 +579,9 @@ enum ovs_action_attr {
OVS_ACTION_ATTR_SAMPLE, /* Nested OVS_SAMPLE_ATTR_*. */
OVS_ACTION_ATTR_RECIRC, /* u32 recirc_id. */
OVS_ACTION_ATTR_HASH, /* struct ovs_action_hash. */
+ OVS_ACTION_ATTR_PUSH_MPLS, /* struct ovs_action_push_mpls. */
+ OVS_ACTION_ATTR_POP_MPLS, /* __be16 ethertype. */
+
__OVS_ACTION_ATTR_MAX
};
--
cgit v1.2.1
From 1a4e96a0e989200f7180264e27b22e9a85f3fcc8 Mon Sep 17 00:00:00 2001
From: Jarno Rajahalme <jrajahalme@nicira.com>
Date: Tue, 30 Sep 2014 10:52:32 -0700
Subject: openvswitch: Fix the type of struct ovs_key_nd nd_target field.
Should be the same as other IPv6 address fields.
Current master produces sparse warnings without this change.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
---
include/uapi/linux/openvswitch.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 631056b66f80..26c36c4cf7e2 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -400,9 +400,9 @@ struct ovs_key_arp {
};
struct ovs_key_nd {
- __u32 nd_target[4];
- __u8 nd_sll[ETH_ALEN];
- __u8 nd_tll[ETH_ALEN];
+ __be32 nd_target[4];
+ __u8 nd_sll[ETH_ALEN];
+ __u8 nd_tll[ETH_ALEN];
};
/**
--
cgit v1.2.1
From bb656add19764c7a3cf28b2b330ec0a189fe4f48 Mon Sep 17 00:00:00 2001
From: Bard Liao <bardliao@realtek.com>
Date: Wed, 5 Nov 2014 15:02:08 +0800
Subject: ASoC: rt5645: Add JD function support
rt5645 codec support jack detection function. The patch will set
related registers if JD function is used.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/rt5645.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/sound/rt5645.h b/include/sound/rt5645.h
index a5352712194b..937f421bc66b 100644
--- a/include/sound/rt5645.h
+++ b/include/sound/rt5645.h
@@ -23,6 +23,9 @@ struct rt5645_platform_data {
unsigned int hp_det_gpio;
bool gpio_hp_det_active_high;
+
+ /* true if codec's jd function is used */
+ bool en_jd_func;
};
#endif
--
cgit v1.2.1
From d50051407f136028108cfda068d55ef053a54fe1 Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Wed, 5 Nov 2014 08:02:48 +0100
Subject: ipv6: Allow sending packets through tunnels with wildcard endpoints
Currently we need the IP6_TNL_F_CAP_XMIT capabiltiy to transmit
packets through an ipv6 tunnel. This capability is set when the
tunnel gets configured, based on the tunnel endpoint addresses.
On tunnels with wildcard tunnel endpoints, we need to do the
capabiltiy checking on a per packet basis like it is done in
the receive path.
This patch extends ip6_tnl_xmit_ctl() to take local and remote
addresses as parameters to allow for per packet capabiltiy
checking.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip6_tunnel.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
index a5593dab6af7..9326c41c2d7f 100644
--- a/include/net/ip6_tunnel.h
+++ b/include/net/ip6_tunnel.h
@@ -65,7 +65,8 @@ void ip6_tnl_dst_reset(struct ip6_tnl *t);
void ip6_tnl_dst_store(struct ip6_tnl *t, struct dst_entry *dst);
int ip6_tnl_rcv_ctl(struct ip6_tnl *t, const struct in6_addr *laddr,
const struct in6_addr *raddr);
-int ip6_tnl_xmit_ctl(struct ip6_tnl *t);
+int ip6_tnl_xmit_ctl(struct ip6_tnl *t, const struct in6_addr *laddr,
+ const struct in6_addr *raddr);
__u16 ip6_tnl_parse_tlv_enc_lim(struct sk_buff *skb, __u8 *raw);
__u32 ip6_tnl_get_cap(struct ip6_tnl *t, const struct in6_addr *laddr,
const struct in6_addr *raddr);
--
cgit v1.2.1
From 5816c3dafb6c63fd5c7b9f3f707c8565811d9916 Mon Sep 17 00:00:00 2001
From: Ryo Munakata <ryomnktml@gmail.com>
Date: Wed, 5 Nov 2014 23:45:58 +0900
Subject: net/9p: remove a comment about pref member which doesn't exist
Signed-off-by: Ryo Munakata <ryomnktml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/9p/transport.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index d9fa68f26c41..2a25dec30211 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -34,7 +34,6 @@
* @list: used to maintain a list of currently available transports
* @name: the human-readable name of the transport
* @maxsize: transport provided maximum packet size
- * @pref: Preferences of this transport
* @def: set if this transport should be considered the default
* @create: member function to create a new connection on this transport
* @close: member function to discard a connection on this transport
--
cgit v1.2.1
From 623369e533e8a5f85999d605723efa4523554bae Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 16 Sep 2014 17:50:47 +0200
Subject: drm: Atomic crtc/connector updates using crtc/plane helper interfaces
So this is finally the integration of the crtc and plane helper
interfaces into the atomic helper functions.
In the check function we now have a few steps:
- First we update the output routing and figure out which crtcs need a
full mode set. Suitable encoders are selected using ->best_encoder,
with the same semantics as the crtc helpers of implicitly disabling
all connectors currently using the encoder.
- Then we pull all other connectors into the state update which feed
from a crtc which changes. This must be done do catch mode changes
and similar updates - atomic updates are differences on top of the
current state.
- Then we call all the various ->mode_fixup to compute the adjusted
mode. Note that here we have a slight semantic difference compared
to the crtc helpers: We have not yet updated the encoder->crtc link
when calling the encoder's ->mode_fixup function. But that's a
requirement when converting to atomic since we want to prepare the
entire state completely contained with the over drm_atomic_state
structure. So this must be carefully checked when converting drivers
over to atomic helpers.
- Finally we do call the atomic_check functions on planes and crtcs.
The commit function is also quite a beast:
- The only step that can fail is done first, namely pinning the
framebuffers. After that we cross the point of no return, an async
commit would push all that into the worker thread.
- The disabling of encoders and connectors is a bit tricky, since
depending upon the final state we need to select different crtc
helper functions.
- Software tracking is a bit clarified compared to the crtc helpers:
We commit the software state before starting to touch the hardware,
like crtc helpers. But since we just swap them we still have the old
state (i.e. the current hw state) around, which is really handy to
write simple disable functions. So no more
drm_crtc_helper_disable_all_unused_functions kind of fun because
we're leaving unused crtcs/encoders behind. Everything gets shut
down in-order now, which is one of the key differences of the i915
helpers compared to crtc helpers and a really nice additional
guarantee.
- Like with the plane helpers the atomic commit function waits for one
vblank to pass before calling the framebuffer cleanup function.
Compared to Rob's helper approach there's a bunch of upsides:
- All the interfaces which can fail are called in the ->check hook
(i.e. ->best_match and the various ->mode_fixup hooks). This means
that drivers can just reuse those functions and don't need to move
everything into ->atomic_check callbacks. If drivers have no need
for additional constraint checking beyong their existing crtc
helper callbacks they don't need to do anything.
- The actual commit operation is properly stage: First we prepare
framebuffers, which can potentially still fail (due to memory
exhausting). This is important for the async case, where this must
be done synchronously to correctly return errors.
- The output configuration changes (done with crtc helper functions)
and the plane update (using atomic plane helpers) are correctly
interleaved: First we shut down any crtcs that need changing, then
we update planes and finally we enable everything again. Hardware
without GO bits must be more careful with ordering, which this
sequence enables.
- Also for hardware with shared output resources (like display PLLs)
we first must shut down the old configuration before we can enable
the new one. Otherwise we can hit an impossible intermediate state
where there's not enough PLLs (which is the point behind atomic
updates).
v2:
- Ensure that users of ->check update crtc_state->enable correctly.
- Update the legacy state in crtc/plane structures. Eventually we want
to remove that, but for now the drm core still expects this (especially
the plane->fb pointer).
v3: A few changes for better async handling:
- Reorder the software side state commit so that it happens all before
we touch the hardware. This way async support becomes very easy
since we can punt all the actual hw touching to a worker thread. And
as long as we synchronize with that thread (flushing or cancelling,
depending upon what the driver can handle) before we commit the next
software state there's no need for any locking in the worker thread
at all. Which greatly simplifies things.
And as long as we synchronize with all relevant threads we can have
a lot of them (e.g. per-crtc for per-crtc updates) running in
parallel.
- Expose pre/post plane commit steps separately. We need to expose the
actual hw commit step anyway for drivers to be able to implement
asynchronous commit workers. But if we expose pre/post and plane
commit steps individually we allow drivers to selectively use atomic
helpers.
- I've forgotten to call encoder/bridge ->mode_set functions, fix
this.
v4: Add debug output and fix a mixup between current and new state
that resulted in crtcs not getting updated correctly. And in an
Oops ...
v5:
- Be kind to driver writers in the vblank wait functions.. if thing
aren't working yet, and vblank irq will never come, then let's not
block forever.. especially under console-lock.
- Correctly clear connector_state->best_encoder when disabling.
Spotted while trying to understand a report from Rob Clark.
- Only steal encoder if it actually changed, otherwise hilarity ensues
if we steal from the current connector and so set the ->crtc pointer
unexpectedly to NULL. Reported by Rob Clark.
- Bail out in disable_outputs if an output currently doesn't have a
best_encoder - this means it's already disabled.
v6: Fixupe kerneldoc as reported by Paulo. And also fix up kerneldoc
in drm_crtc.h.
v7: Take ownership of the atomic state and clean it up with
drm_atomic_state_free().
v8 Various improvements all over:
- Polish code comments and kerneldoc.
- Improve debug output to make sure all failure cases are logged.
- Treat enabled crtc with no connectors as invalid input from userspace.
- Don't ignore the return value from mode_fixup().
v9:
- Improve debug output for crtc_state->mode_changed.
v10:
- Fixup the vblank waiting code to properly balance the vblank_get/put
calls.
- Better comments when checking/computing crtc->mode_changed
v11: Fixup the encoder stealing logic: We can't look at encoder->crtc
since that's not in the atomic state structures and might be updated
asynchronously in and async commit. Instead we need to inspect all the
connector states and check whether the encoder is currently in used
and if so, on which crtc.
v12: Review from Sean:
- A few spelling fixes.
- Flatten control flow indent by converting if blocks to early
continue/return in 2 places.
- Capture connectors_for_crtc return value in int num_connectors
instead of bool has_connectors and do an explicit int->bool
conversion with !!. I think the helper is more useful for drivers if
it returns the number of connectors (e.g. to detect cloning
configurations), so decided to keep that return value.
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Paulo Zanoni <przanoni@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic_helper.h | 8 ++++++++
include/drm/drm_crtc.h | 10 ++++++++++
2 files changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 79938c62e7ad..9781ce739e10 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -30,6 +30,14 @@
int drm_atomic_helper_check(struct drm_device *dev,
struct drm_atomic_state *state);
+int drm_atomic_helper_commit(struct drm_device *dev,
+ struct drm_atomic_state *state,
+ bool async);
+
+void drm_atomic_helper_commit_pre_planes(struct drm_device *dev,
+ struct drm_atomic_state *state);
+void drm_atomic_helper_commit_post_planes(struct drm_device *dev,
+ struct drm_atomic_state *old_state);
int drm_atomic_helper_prepare_planes(struct drm_device *dev,
struct drm_atomic_state *state);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 53c8638592d4..bc47d11cb126 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -229,6 +229,9 @@ struct drm_atomic_state;
/**
* struct drm_crtc_state - mutable CRTC state
* @enable: whether the CRTC should be enabled, gates all other state
+ * @mode_changed: for use by helpers and drivers when computing state updates
+ * @last_vblank_count: for helpers and drivers to capture the vblank of the
+ * update to ensure framebuffer cleanup isn't done too early
* @planes_changed: for use by helpers and drivers when computing state updates
* @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
* @mode: current mode timings
@@ -241,6 +244,10 @@ struct drm_crtc_state {
/* computed state bits used by helpers and drivers */
bool planes_changed : 1;
+ bool mode_changed : 1;
+
+ /* last_vblank_count: for vblank waits before cleanup */
+ u32 last_vblank_count;
/* adjusted_mode: for use by helpers and drivers */
struct drm_display_mode adjusted_mode;
@@ -426,11 +433,14 @@ struct drm_crtc {
/**
* struct drm_connector_state - mutable connector state
* @crtc: CRTC to connect connector to, NULL if disabled
+ * @best_encoder: can be used by helpers and drivers to select the encoder
* @state: backpointer to global drm_atomic_state
*/
struct drm_connector_state {
struct drm_crtc *crtc;
+ struct drm_encoder *best_encoder;
+
struct drm_atomic_state *state;
};
--
cgit v1.2.1
From 042652ed95996a9ef6dcddddc53b5d8bc7fa887e Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun, 27 Jul 2014 13:46:52 +0200
Subject: drm/atomic-helper: implementatations for legacy interfaces
Well, except page_flip since that requires async commit, which isn't
there yet.
For the functions which changes planes there's a bit of trickery
involved to keep the fb refcounting working. But otherwise fairly
straight-forward atomic updates.
The property setting functions are still a bit incomplete. Once we
have generic properties (e.g. rotation, but also all the properties
needed by the atomic ioctl) we need to filter those out and parse them
in the helper. Preferrably with the same function as used by the real
atomic ioctl implementation.
v2: Fixup kerneldoc, reported by Paulo.
v3: Add missing EXPORT_SYMBOL.
v4: We need to look at the crtc of the modeset, not some random
leftover one from a previous loop when udpating the connector->crtc
routing. Also push some local variables into inner loops to avoid
these kinds of bugs.
v5: Adjust semantics - drivers now own the atomic state upon
successfully synchronous commit.
v6: Use the set_crtc_for_plane function to assign the crtc, since
otherwise the book-keeping is off.
v7:
- Improve comments.
- Filter out the crtc of the ->set_config call when recomputing
crtc_state->enabled: We should compute the same state, but not doing
so will give us a good chance to catch bugs and inconsistencies -
the atomic helper's atomic_check function re-validates this again.
- Fix the set_config implementation logic when disabling the crtc: We
still need to update the output routing to disable all the
connectors properly in the state. Caught by the atomic_check
functions, so at least that part worked ;-) Also add some WARN_ONs
to ensure ->set_config preconditions all apply.
v8: Fixup an embarrassing h/vdisplay mixup.
v9: Shuffled bad squash to the right patch, spotted by Daniel
v10: Use set_crtc_for_connector as suggested by Sean.
v11: Daniel Thompson noticed that my error handling is inconsistent
and that in a few cases I didn't handle fatal errors (i.e. not
-EDEADLK). Fix this by consolidate the ww mutex backoff handling
into one check in the fail: block and flatten the error control
flow everywhere else.
v12: Review and discussion with Sean:
- One spelling fix.
- Correctly skip the crtc from the set_config set when recomputing
->enable state. That should allow us to catch any bugs in higher
levels in computing that state (which is supplied to the
->set_config implementation). I've screwed this up and Sean spotted
that the current code is pointless.
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Paulo Zanoni <przanoni@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic_helper.h | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 9781ce739e10..8cd6fe7a48e5 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -49,4 +49,25 @@ void drm_atomic_helper_cleanup_planes(struct drm_device *dev,
void drm_atomic_helper_swap_state(struct drm_device *dev,
struct drm_atomic_state *state);
+/* implementations for legacy interfaces */
+int drm_atomic_helper_update_plane(struct drm_plane *plane,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int crtc_x, int crtc_y,
+ unsigned int crtc_w, unsigned int crtc_h,
+ uint32_t src_x, uint32_t src_y,
+ uint32_t src_w, uint32_t src_h);
+int drm_atomic_helper_disable_plane(struct drm_plane *plane);
+int drm_atomic_helper_set_config(struct drm_mode_set *set);
+
+int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc,
+ struct drm_property *property,
+ uint64_t val);
+int drm_atomic_helper_plane_set_property(struct drm_plane *plane,
+ struct drm_property *property,
+ uint64_t val);
+int drm_atomic_helper_connector_set_property(struct drm_connector *connector,
+ struct drm_property *property,
+ uint64_t val);
+
#endif /* DRM_ATOMIC_HELPER_H_ */
--
cgit v1.2.1
From e2330f0719515e41090a4d9685b931888b7c01d6 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 29 Oct 2014 11:34:56 +0100
Subject: drm/atomic: Integrate fence support
This patch is for enabling async commits. It replaces an earlier
approach which added an async boolean paramter to the ->prepare_fb
callbacks. The idea is that prepare_fb picks up the right fence to
synchronize against, which is then used by the synchronous commit
helper. For async commits drivers can either register a callback to
the fence or simply do the synchronous wait in their async work queue.
v2: Remove unused variable.
v3: Only wait for fences after the point of no return in the part
of the commit function which can be run asynchronously. This is after
the atomic state has been swapped in, hence now check
plane->state->fence.
Also add a WARN_ON to make sure we don't try to wait on a fence when
there's no fb, just as a sanity check.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drm_crtc.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index bc47d11cb126..bc1cc3ce05c4 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -42,6 +42,7 @@ struct drm_object_properties;
struct drm_file;
struct drm_clip_rect;
struct device_node;
+struct fence;
#define DRM_MODE_OBJECT_CRTC 0xcccccccc
#define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
@@ -658,6 +659,7 @@ struct drm_connector {
* struct drm_plane_state - mutable plane state
* @crtc: currently bound CRTC, NULL if disabled
* @fb: currently bound framebuffer
+ * @fence: optional fence to wait for before scanning out @fb
* @crtc_x: left position of visible portion of plane on crtc
* @crtc_y: upper position of visible portion of plane on crtc
* @crtc_w: width of visible portion of plane on crtc
@@ -673,6 +675,7 @@ struct drm_connector {
struct drm_plane_state {
struct drm_crtc *crtc;
struct drm_framebuffer *fb;
+ struct fence *fence;
/* Signed dest location allows it to be partially off screen */
int32_t crtc_x, crtc_y;
--
cgit v1.2.1
From 8bc0f3126cc5d37c98d213171e71626536fd1e86 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun, 27 Jul 2014 18:42:37 +0200
Subject: drm/atomic-helper: implement ->page_flip
Currently there is no way to implement async flips using atomic, that
essentially requires us to be able to cancel pending requests
mid-flight.
To be able to do that (and I guess we want this since vblank synced
updates which opportunistically cancel still pending updates seem to be
wanted) we'd need to add a mandatory cancellation mode. Depending upon
the exact semantics we decide upon that could mean that userspace will
not get completion events, or will get them all stacked up.
So reject async updates for now. Also async updates usually means not
vblank synced at all, and I guess for drivers which want to support
this they should simply add a special pageflip handler (since usually
you need a special flip cmd to achieve this). That kind of async flip
is pretty much exclusively just used for games and benchmarks where
dropping just one frame means you'll get a headshot or something bad
like that ... And so slight amounts of tearing is acceptable.
v2: Fixup kerneldoc, reported by Paulo.
v3: Use the set_crtc_for_plane function to assign the crtc, since
otherwise the book-keeping is off.
v4: Update crtc->primary->fb since ->page_flip is the only driver
callback where the core won't do this itself. We might want to fix
this inconsistency eventually.
v5: Use set_crtc_for_connector as suggested by Sean.
v6: Daniel Thompson noticed that my error handling is inconsistent
and that in a few cases I didn't handle fatal errors (i.e. not
-EDEADLK). Fix this by consolidate the ww mutex backoff handling
into one check in the fail: block and flatten the error control
flow everywhere else.
v7: Fix spelling mistake in the commit message (Sean).
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Paulo Zanoni <przanoni@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic_helper.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 8cd6fe7a48e5..28a2f3a815fd 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -69,5 +69,10 @@ int drm_atomic_helper_plane_set_property(struct drm_plane *plane,
int drm_atomic_helper_connector_set_property(struct drm_connector *connector,
struct drm_property *property,
uint64_t val);
+int drm_atomic_helper_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event,
+ uint32_t flags);
+
#endif /* DRM_ATOMIC_HELPER_H_ */
--
cgit v1.2.1
From d461701c551efe92893b31d05906d51e2f1f8244 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 3 Nov 2014 15:56:43 +0100
Subject: drm/atomic-helpers: functions for state duplicate/destroy/reset
The atomic users and helpers assume that there is always a obj->state
structure around. Which means drivers need to somehow create that at
driver load time. Also it should obviously reset hardware state, so
needs to be reset upon resume.
Finally the destroy/duplicate_state functions are an awful lot of
boilerplate if the driver doesn't need anything beyond the default
state objects.
So add helper functions for all of this.
v2: Somehow the plane/connector versions got lost in the first
version.
v3: Add kerneldoc.
v4: Make duplicate_state functions a bit more robust, which is useful
for debugging state tracking issues when transitioning to atomic.
v5: Clear temporary variables in the crtc state when duplicating it,
like ->mode_changed or ->planes_changed. If we don't do this stale
values for these might pollute the next atomic modeset.
v6: Also clear crtc_state->event in case the driver didn't (yet) clear
this out.
v7: Split out wrong squashed commit. Also improve the kerneldoc to
mention that obj->state can be NULL and when. Both suggested by
Daniel Thompson.
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic_helper.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 28a2f3a815fd..67e3c4645ae0 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -74,5 +74,24 @@ int drm_atomic_helper_page_flip(struct drm_crtc *crtc,
struct drm_pending_vblank_event *event,
uint32_t flags);
+/* default implementations for state handling */
+void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc);
+struct drm_crtc_state *
+drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc);
+void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state);
+
+void drm_atomic_helper_plane_reset(struct drm_plane *plane);
+struct drm_plane_state *
+drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane);
+void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
+ struct drm_plane_state *state);
+
+void drm_atomic_helper_connector_reset(struct drm_connector *connector);
+struct drm_connector_state *
+drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector);
+void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector,
+ struct drm_connector_state *state);
+
#endif /* DRM_ATOMIC_HELPER_H_ */
--
cgit v1.2.1
From 321ebf04dc7ab5c54d658f93db0ffe35277664ab Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 4 Nov 2014 22:57:27 +0100
Subject: drm/atomic: Refcounting for plane_state->fb
So my original plan was that the drm core refcounts framebuffers like
with the legacy ioctls. But that doesn't work for a bunch of reasons:
- State objects might live longer than until the next fb change
happens for a plane. For example delayed cleanup work only happens
_after_ the pageflip ioctl has completed. So this definitely doesn't
work without the plane state holding its own references.
- The other issue is transition from legacy to atomic implementations,
where the driver works under a mix of both worlds. Which means
legacy paths might not properly update the ->fb pointer under
plane->state->fb. Which is a bit a problem when then someone comes
around and _does_ try to clean it up when it's long gone.
The second issue is just a bit a transition bug, since drivers should
update plane->state->fb in all the paths that aren't converted yet.
But a bit more robustness for the transition can't hurt - we pull
similar tricks with cleaning up the old fb in the transitional helpers
already.
The pattern for drivers that transition is
if (plane->state)
drm_atomic_set_fb_for_plane(plane->state, plane->fb);
inserted after the fb update has logically completed at the end of
->set_config (or ->set_base/mode_set if using the crtc helpers),
->page_flip, ->update_plane or any other entry point which updates
plane->fb.
v2: Update kerneldoc - copypasta fail.
v3: Fix spelling in the commit message (Sean).
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
include/drm/drm_atomic.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 5bb15f550c42..9d919168bc11 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -46,6 +46,8 @@ drm_atomic_get_connector_state(struct drm_atomic_state *state,
int __must_check
drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state,
struct drm_crtc *crtc);
+void drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state,
+ struct drm_framebuffer *fb);
int __must_check
drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state,
struct drm_crtc *crtc);
--
cgit v1.2.1
From 926c512685ddd8f26f1c789218391530ccd54a35 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 5 Nov 2014 15:42:09 -0800
Subject: sock.h: Remove unused NETDEBUG macro
It's unused now, just delete it.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sock.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index 7db3db112baa..6767d75ecb17 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2280,9 +2280,6 @@ bool sk_net_capable(const struct sock *sk, int cap);
* Enable debug/info messages
*/
extern int net_msg_warn;
-#define NETDEBUG(fmt, args...) \
- do { if (net_msg_warn) printk(fmt,##args); } while (0)
-
#define LIMIT_NETDEBUG(fmt, args...) \
do { if (net_msg_warn && net_ratelimit()) printk(fmt,##args); } while(0)
--
cgit v1.2.1
From 9b8777e3473e31b2aabd669e5f34866d4a3afb6a Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 16 Oct 2014 21:48:21 +0200
Subject: serial: of: add a PORT_RT2880 definition
The Ralink RT2880 SoC and its successors have an internal 8250 core. This core
needs the same quirks applied as the AMD AU1xxx uart. In addition to these
quirks, the ports memory region is only 0x100 unlike the AU1xxx which has a
size of 0x1000.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/serial_core.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 16ad8521af6a..c17218094f18 100644
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -54,7 +54,8 @@
#define PORT_ALTR_16550_F32 26 /* Altera 16550 UART with 32 FIFOs */
#define PORT_ALTR_16550_F64 27 /* Altera 16550 UART with 64 FIFOs */
#define PORT_ALTR_16550_F128 28 /* Altera 16550 UART with 128 FIFOs */
-#define PORT_MAX_8250 28 /* max port ID */
+#define PORT_RT2880 29 /* Ralink RT2880 internal UART */
+#define PORT_MAX_8250 29 /* max port ID */
/*
* ARM specific type numbers. These are not currently guaranteed
--
cgit v1.2.1
From e979f3b712c8b8ae44bab591427f1647dd25aa0d Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@gmail.com>
Date: Tue, 21 Oct 2014 15:23:03 -0700
Subject: tty: serial: bcm63xx: Eliminate unnecessary request/release functions
We don't really need to perform the ioremap "on demand" so it's simpler
just to do it from the probe function. This also lets us eliminate the
UART_REG_SIZE constant and rely on the resource information passed in
from the DT or platform code.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_bcm63xx.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/serial_bcm63xx.h b/include/linux/serial_bcm63xx.h
index a80aa1a5bee2..570e964dc899 100644
--- a/include/linux/serial_bcm63xx.h
+++ b/include/linux/serial_bcm63xx.h
@@ -116,6 +116,4 @@
UART_FIFO_PARERR_MASK | \
UART_FIFO_BRKDET_MASK)
-#define UART_REG_SIZE 24
-
#endif /* _LINUX_SERIAL_BCM63XX_H */
--
cgit v1.2.1
From 413ba6385382bc80e4bf2f58efa900e82e810b11 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 12:40:04 -0500
Subject: tty: Convert tty->closing to int
tty->closing is a bitfield member; prevent corruption from non-atomic
update by assigning a unique memory location.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tty.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tty.h b/include/linux/tty.h
index c52a689e09aa..7d66ae508e5c 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -284,7 +284,7 @@ struct tty_struct {
#define N_TTY_BUF_SIZE 4096
- unsigned char closing:1;
+ int closing;
unsigned char *write_buf;
int write_cnt;
/* If the tty has a pending do_SAK, queue it here - akpm */
--
cgit v1.2.1
From 732a84a037a4de29b54e0b4e6cb6f9b3813e29e5 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 5 Nov 2014 13:11:43 -0500
Subject: serial: core: Pass termios to set_ldisc() notifications
UART drivers which enable modem status interrupts when switching
to N_PPS line discipline need to determine if modem status
interrupts should be disabled when switching from N_PPS.
Specifically, the set_ldisc() notification needs to evaluate
UART_ENABLE_MS() which requires termios->c_cflag.
Convert in-tree UART drivers to new interface.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index ad9329669aba..40b4cc4f8e1d 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -63,7 +63,7 @@ struct uart_ops {
void (*flush_buffer)(struct uart_port *);
void (*set_termios)(struct uart_port *, struct ktermios *new,
struct ktermios *old);
- void (*set_ldisc)(struct uart_port *, int new);
+ void (*set_ldisc)(struct uart_port *, struct ktermios *);
void (*pm)(struct uart_port *, unsigned int state,
unsigned int oldstate);
--
cgit v1.2.1
From a5f276f10ff70da89b349df445e944c8cd87956c Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Date: Thu, 6 Nov 2014 22:46:13 +0100
Subject: serial_core: Handle TIOC[GS]RS485 ioctls.
The following drivers: 8250_core, atmel_serial, max310x, mcf, omap-serial
and sci16is7xx implement code to handle RS485 ioctls.
In order to avoid code duplication, we implement a simple ioctl handler
on the serial_core layer.
This handler can be used by all the other drivers instead of duplicating
code.
Until this is the only RS485 ioctl handler, it will try first the
rs485_config callback and if it is not present it will call the driver
specific ioctl.
Reviewed-by: Alan Cox <alan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 40b4cc4f8e1d..3231a43f6acf 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -131,6 +131,8 @@ struct uart_port {
void (*pm)(struct uart_port *, unsigned int state,
unsigned int old);
void (*handle_break)(struct uart_port *);
+ int (*rs485_config)(struct uart_port *,
+ struct serial_rs485 *rs485);
unsigned int irq; /* irq number */
unsigned long irqflags; /* irq flags */
unsigned int uartclk; /* base uart clock */
@@ -231,6 +233,7 @@ struct uart_port {
unsigned char unused[2];
struct attribute_group *attr_group; /* port specific attributes */
const struct attribute_group **tty_groups; /* all attributes (serial core use only) */
+ struct serial_rs485 rs485;
void *private_data; /* generic platform data pointer */
};
--
cgit v1.2.1
From 039ec1f010e6b058f497381d5a6bb840e160b4ac Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Date: Thu, 6 Nov 2014 09:22:53 +0100
Subject: serial/8250: Remove obsolete handling of rs485 ioctls
There is no more users for this functions. All the 8250 drivers are
using the rs485 handler on serial_core instead.
Reviewed-by: Alan Cox <alan@linux.intel.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_8250.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 3df10d5f154b..e02acf0a0ec9 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -97,13 +97,10 @@ struct uart_8250_port {
unsigned char msr_saved_flags;
struct uart_8250_dma *dma;
- struct serial_rs485 rs485;
/* 8250 specific callbacks */
int (*dl_read)(struct uart_8250_port *);
void (*dl_write)(struct uart_8250_port *, int);
- int (*rs485_config)(struct uart_8250_port *,
- struct serial_rs485 *rs485);
};
static inline struct uart_8250_port *up_to_u8250p(struct uart_port *up)
--
cgit v1.2.1
From 8a8ae62f8296760a2a1eee7009a1444c327603e0 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Thu, 6 Nov 2014 16:56:33 +0100
Subject: tty: warn on deprecated serial flags
When somebody calls TIOCSSERIAL ioctl with serial flags to set one of
* ASYNC_SESSION_LOCKOUT
* ASYNC_PGRP_LOCKOUT
* ASYNC_CALLOUT_NOHUP
* ASYNC_AUTOPROBE
nothing happens. We actually ignore the flags for over a decade at
least (I checked 2.6.0).
So start yelling at users who use those flags, that they shouldn't.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/tty_flags.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tty_flags.h b/include/uapi/linux/tty_flags.h
index d2bc4ff94f43..fae4864737fa 100644
--- a/include/uapi/linux/tty_flags.h
+++ b/include/uapi/linux/tty_flags.h
@@ -64,6 +64,8 @@
#define ASYNC_MAGIC_MULTIPLIER (1U << ASYNCB_MAGIC_MULTIPLIER)
#define ASYNC_FLAGS ((1U << (ASYNCB_LAST_USER + 1)) - 1)
+#define ASYNC_DEPRECATED (ASYNC_SESSION_LOCKOUT | ASYNC_PGRP_LOCKOUT | \
+ ASYNC_CALLOUT_NOHUP | ASYNC_AUTOPROBE)
#define ASYNC_USR_MASK (ASYNC_SPD_MASK|ASYNC_CALLOUT_NOHUP| \
ASYNC_LOW_LATENCY)
#define ASYNC_SPD_CUST (ASYNC_SPD_HI|ASYNC_SPD_VHI)
--
cgit v1.2.1
From c3b50dc219e1437e4dcb6a1639b004648dc29faa Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Tue, 28 Oct 2014 17:40:41 +0100
Subject: core: platform: let platform_driver_probe initialize module owner
Since commit 9447057eaff8 ("platform_device: use a macro instead of
platform_driver_register"), platform_driver_register() always overwrites
the .owner field of a platform_driver with THIS_MODULE. This breaks
platform_driver_probe() which uses it from within the platform core
instead of the module init. Fix it by using a similar #define construct
to obtain THIS_MODULE and pass it on later.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/platform_device.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 153d303af7eb..c8d95c60da19 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -197,8 +197,10 @@ extern void platform_driver_unregister(struct platform_driver *);
/* non-hotpluggable platform devices may use this so that probe() and
* its support may live in __init sections, conserving runtime memory.
*/
-extern int platform_driver_probe(struct platform_driver *driver,
- int (*probe)(struct platform_device *));
+#define platform_driver_probe(drv, probe) \
+ __platform_driver_probe(drv, probe, THIS_MODULE)
+extern int __platform_driver_probe(struct platform_driver *driver,
+ int (*probe)(struct platform_device *), struct module *module);
static inline void *platform_get_drvdata(const struct platform_device *pdev)
{
--
cgit v1.2.1
From 291f653a140ad880426125e5e9dbb70f4c184683 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Tue, 28 Oct 2014 17:40:42 +0100
Subject: core: platform: let platform_create_bundle initialize module owner
Since commit 9447057eaff8 ("platform_device: use a macro instead of
platform_driver_register"), platform_driver_register() always overwrites
the .owner field of a platform_driver with THIS_MODULE. This breaks
platform_create_bundle() which uses it via platform_driver_probe() from
within the platform core instead of the module init. Fix it by using a
similar #define construct to obtain THIS_MODULE and pass it on later.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/platform_device.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index c8d95c60da19..ae4882ca4a64 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -240,10 +240,12 @@ static void __exit __platform_driver##_exit(void) \
} \
module_exit(__platform_driver##_exit);
-extern struct platform_device *platform_create_bundle(
+#define platform_create_bundle(driver, probe, res, n_res, data, size) \
+ __platform_create_bundle(driver, probe, res, n_res, data, size, THIS_MODULE)
+extern struct platform_device *__platform_create_bundle(
struct platform_driver *driver, int (*probe)(struct platform_device *),
struct resource *res, unsigned int n_res,
- const void *data, size_t size);
+ const void *data, size_t size, struct module *module);
/* early platform driver interface */
struct early_platform_driver {
--
cgit v1.2.1
From 38737d82f9f0168955f9944c3f8bd3bb262c7e88 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 27 Oct 2014 10:44:36 +0800
Subject: PCI/MSI: Add pci_msi_ignore_mask to prevent writes to MSI/MSI-X Mask
Bits
MSI-X vector Mask Bits are in MSI-X Tables in PCI memory space. Xen PV
guests can't write to those tables. MSI vector Mask Bits are in PCI
configuration space. Xen PV guests can write to config space, but those
writes are ignored.
Commit 0e4ccb1505a9 ("PCI: Add x86_msi.msi_mask_irq() and
msix_mask_irq()") added a way to override default_mask_msi_irqs() and
default_mask_msix_irqs() so they can be no-ops in Xen guests, but this is
more complicated than necessary.
Add "pci_msi_ignore_mask" in the core PCI MSI code. If set,
default_mask_msi_irqs() and default_mask_msix_irqs() return without doing
anything. This is less flexible, but much simpler.
[bhelgaas: changelog]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: xen-devel@lists.xenproject.org
---
include/linux/msi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 44f4746d033b..86dc501a1534 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -10,6 +10,7 @@ struct msi_msg {
u32 data; /* 16 bits of msi message data */
};
+extern int pci_msi_ignore_mask;
/* Helper functions */
struct irq_data;
struct msi_desc;
--
cgit v1.2.1
From 245bd6f6af8a62a2e2e14976e5ef3dc2b82ec153 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Thu, 6 Nov 2014 15:51:00 +0200
Subject: PM / clock_ops: Add pm_clk_add_clk()
The existing pm_clk_add() allows to pass a clock by con_id. However,
when referring to a specific clock from DT, no con_id is available.
Add pm_clk_add_clk(), which allows to specify the struct clk * directly.
The will will increment refcount on clock pointer, so the caller has
to use clk_put() on clock pointer when done.
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_clock.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/pm_clock.h b/include/linux/pm_clock.h
index 8348866e7b05..0b0039634410 100644
--- a/include/linux/pm_clock.h
+++ b/include/linux/pm_clock.h
@@ -18,6 +18,8 @@ struct pm_clk_notifier_block {
char *con_ids[];
};
+struct clk;
+
#ifdef CONFIG_PM_CLK
static inline bool pm_clk_no_clocks(struct device *dev)
{
@@ -29,6 +31,7 @@ extern void pm_clk_init(struct device *dev);
extern int pm_clk_create(struct device *dev);
extern void pm_clk_destroy(struct device *dev);
extern int pm_clk_add(struct device *dev, const char *con_id);
+extern int pm_clk_add_clk(struct device *dev, struct clk *clk);
extern void pm_clk_remove(struct device *dev, const char *con_id);
extern int pm_clk_suspend(struct device *dev);
extern int pm_clk_resume(struct device *dev);
@@ -51,6 +54,11 @@ static inline int pm_clk_add(struct device *dev, const char *con_id)
{
return -EINVAL;
}
+
+static inline int pm_clk_add_clk(struct device *dev, struct clk *clk)
+{
+ return -EINVAL;
+}
static inline void pm_clk_remove(struct device *dev, const char *con_id)
{
}
--
cgit v1.2.1
From b07597367001c2c4f36a97863530f71b84060d3d Mon Sep 17 00:00:00 2001
From: Padmavathi Venna <padma.v@samsung.com>
Date: Fri, 7 Nov 2014 12:24:39 +0530
Subject: ASoC: Samsung: Add quirk for internal DMA
Internal DMA is available only on some of Samsung platforms.
So added a quirk for the same and made it optional.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/platform_data/asoc-s3c.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/platform_data/asoc-s3c.h b/include/linux/platform_data/asoc-s3c.h
index a6591c693ebb..5e0bc779e6c5 100644
--- a/include/linux/platform_data/asoc-s3c.h
+++ b/include/linux/platform_data/asoc-s3c.h
@@ -27,6 +27,7 @@ struct samsung_i2s {
#define QUIRK_NO_MUXPSR (1 << 2)
#define QUIRK_NEED_RSTCLR (1 << 3)
#define QUIRK_SUPPORTS_TDM (1 << 4)
+#define QUIRK_SUPPORTS_IDMA (1 << 5)
/* Quirks of the I2S controller */
u32 quirks;
dma_addr_t idma_addr;
--
cgit v1.2.1
From b9ec1c9da64f0c1d130beb125a916d0725363ec9 Mon Sep 17 00:00:00 2001
From: Chris Rorvick <chris@rorvick.com>
Date: Tue, 4 Nov 2014 19:18:45 -0600
Subject: usb: Create separate header for ehci-dbgp
The FUSBH200 and FOTG210 controllers implement sufficiently EHCI-
compatible debug ports to leverage ehci-dbgp from their respective
drivers. Rather than including <linux/usb/ehci_def.h> header, though,
they replicate the necessary declarations in their own headers. Move
the ehci-dbgp stuff into its own header as a first step towards removing
this redundancy.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/ehci-dbgp.h | 84 +++++++++++++++++++++++++++++++++++++++++++
include/linux/usb/ehci_def.h | 65 ++-------------------------------
2 files changed, 86 insertions(+), 63 deletions(-)
create mode 100644 include/linux/usb/ehci-dbgp.h
(limited to 'include')
diff --git a/include/linux/usb/ehci-dbgp.h b/include/linux/usb/ehci-dbgp.h
new file mode 100644
index 000000000000..796c1cd6f26a
--- /dev/null
+++ b/include/linux/usb/ehci-dbgp.h
@@ -0,0 +1,84 @@
+/*
+ * Standalone EHCI usb debug driver
+ *
+ * Originally written by:
+ * Eric W. Biederman" <ebiederm@xmission.com> and
+ * Yinghai Lu <yhlu.kernel@gmail.com>
+ *
+ * Changes for early/late printk and HW errata:
+ * Jason Wessel <jason.wessel@windriver.com>
+ * Copyright (C) 2009 Wind River Systems, Inc.
+ *
+ */
+
+#ifndef __LINUX_USB_EHCI_DBGP_H
+#define __LINUX_USB_EHCI_DBGP_H
+
+#include <linux/console.h>
+#include <linux/types.h>
+
+/* Appendix C, Debug port ... intended for use with special "debug devices"
+ * that can help if there's no serial console. (nonstandard enumeration.)
+ */
+struct ehci_dbg_port {
+ u32 control;
+#define DBGP_OWNER (1<<30)
+#define DBGP_ENABLED (1<<28)
+#define DBGP_DONE (1<<16)
+#define DBGP_INUSE (1<<10)
+#define DBGP_ERRCODE(x) (((x)>>7)&0x07)
+# define DBGP_ERR_BAD 1
+# define DBGP_ERR_SIGNAL 2
+#define DBGP_ERROR (1<<6)
+#define DBGP_GO (1<<5)
+#define DBGP_OUT (1<<4)
+#define DBGP_LEN(x) (((x)>>0)&0x0f)
+ u32 pids;
+#define DBGP_PID_GET(x) (((x)>>16)&0xff)
+#define DBGP_PID_SET(data, tok) (((data)<<8)|(tok))
+ u32 data03;
+ u32 data47;
+ u32 address;
+#define DBGP_EPADDR(dev, ep) (((dev)<<8)|(ep))
+};
+
+#ifdef CONFIG_EARLY_PRINTK_DBGP
+#include <linux/init.h>
+extern int __init early_dbgp_init(char *s);
+extern struct console early_dbgp_console;
+#endif /* CONFIG_EARLY_PRINTK_DBGP */
+
+struct usb_hcd;
+
+#ifdef CONFIG_XEN_DOM0
+extern int xen_dbgp_reset_prep(struct usb_hcd *);
+extern int xen_dbgp_external_startup(struct usb_hcd *);
+#else
+static inline int xen_dbgp_reset_prep(struct usb_hcd *hcd)
+{
+ return 1; /* Shouldn't this be 0? */
+}
+
+static inline int xen_dbgp_external_startup(struct usb_hcd *hcd)
+{
+ return -1;
+}
+#endif
+
+#ifdef CONFIG_EARLY_PRINTK_DBGP
+/* Call backs from ehci host driver to ehci debug driver */
+extern int dbgp_external_startup(struct usb_hcd *);
+extern int dbgp_reset_prep(struct usb_hcd *);
+#else
+static inline int dbgp_reset_prep(struct usb_hcd *hcd)
+{
+ return xen_dbgp_reset_prep(hcd);
+}
+
+static inline int dbgp_external_startup(struct usb_hcd *hcd)
+{
+ return xen_dbgp_external_startup(hcd);
+}
+#endif
+
+#endif /* __LINUX_USB_EHCI_DBGP_H */
diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h
index daec99af5d54..966889a20ea3 100644
--- a/include/linux/usb/ehci_def.h
+++ b/include/linux/usb/ehci_def.h
@@ -19,6 +19,8 @@
#ifndef __LINUX_USB_EHCI_DEF_H
#define __LINUX_USB_EHCI_DEF_H
+#include <linux/usb/ehci-dbgp.h>
+
/* EHCI register interface, corresponds to EHCI Revision 0.95 specification */
/* Section 2.2 Host Controller Capability Registers */
@@ -190,67 +192,4 @@ struct ehci_regs {
#define USBMODE_EX_HC (3<<0) /* host controller mode */
};
-/* Appendix C, Debug port ... intended for use with special "debug devices"
- * that can help if there's no serial console. (nonstandard enumeration.)
- */
-struct ehci_dbg_port {
- u32 control;
-#define DBGP_OWNER (1<<30)
-#define DBGP_ENABLED (1<<28)
-#define DBGP_DONE (1<<16)
-#define DBGP_INUSE (1<<10)
-#define DBGP_ERRCODE(x) (((x)>>7)&0x07)
-# define DBGP_ERR_BAD 1
-# define DBGP_ERR_SIGNAL 2
-#define DBGP_ERROR (1<<6)
-#define DBGP_GO (1<<5)
-#define DBGP_OUT (1<<4)
-#define DBGP_LEN(x) (((x)>>0)&0x0f)
- u32 pids;
-#define DBGP_PID_GET(x) (((x)>>16)&0xff)
-#define DBGP_PID_SET(data, tok) (((data)<<8)|(tok))
- u32 data03;
- u32 data47;
- u32 address;
-#define DBGP_EPADDR(dev, ep) (((dev)<<8)|(ep))
-};
-
-#ifdef CONFIG_EARLY_PRINTK_DBGP
-#include <linux/init.h>
-extern int __init early_dbgp_init(char *s);
-extern struct console early_dbgp_console;
-#endif /* CONFIG_EARLY_PRINTK_DBGP */
-
-struct usb_hcd;
-
-#ifdef CONFIG_XEN_DOM0
-extern int xen_dbgp_reset_prep(struct usb_hcd *);
-extern int xen_dbgp_external_startup(struct usb_hcd *);
-#else
-static inline int xen_dbgp_reset_prep(struct usb_hcd *hcd)
-{
- return 1; /* Shouldn't this be 0? */
-}
-
-static inline int xen_dbgp_external_startup(struct usb_hcd *hcd)
-{
- return -1;
-}
-#endif
-
-#ifdef CONFIG_EARLY_PRINTK_DBGP
-/* Call backs from ehci host driver to ehci debug driver */
-extern int dbgp_external_startup(struct usb_hcd *);
-extern int dbgp_reset_prep(struct usb_hcd *hcd);
-#else
-static inline int dbgp_reset_prep(struct usb_hcd *hcd)
-{
- return xen_dbgp_reset_prep(hcd);
-}
-static inline int dbgp_external_startup(struct usb_hcd *hcd)
-{
- return xen_dbgp_external_startup(hcd);
-}
-#endif
-
#endif /* __LINUX_USB_EHCI_DEF_H */
--
cgit v1.2.1
From 35a27eab6f94e15fa30f7662af00fbec50526f4a Mon Sep 17 00:00:00 2001
From: Chris Rorvick <chris@rorvick.com>
Date: Tue, 4 Nov 2014 19:18:54 -0600
Subject: usb: Remove __init from early_dbgp_init() prototype
Specifying these attributes in both the prototype and the function
definition is unnecessary and could cause confusion or bugs if they are
inconsistent. As such, __init should only be specified at the function
definition.
Keith Owens suggested this as a janitorial task on LKML several years
ago:
https://lkml.org/lkml/2006/1/14/305
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/ehci-dbgp.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/usb/ehci-dbgp.h b/include/linux/usb/ehci-dbgp.h
index 796c1cd6f26a..7344d9e591cc 100644
--- a/include/linux/usb/ehci-dbgp.h
+++ b/include/linux/usb/ehci-dbgp.h
@@ -43,8 +43,7 @@ struct ehci_dbg_port {
};
#ifdef CONFIG_EARLY_PRINTK_DBGP
-#include <linux/init.h>
-extern int __init early_dbgp_init(char *s);
+extern int early_dbgp_init(char *s);
extern struct console early_dbgp_console;
#endif /* CONFIG_EARLY_PRINTK_DBGP */
--
cgit v1.2.1
From a8f820aa4066d2c97e75ecd1bbca8a7920b66f2c Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 7 Nov 2014 21:22:22 +0800
Subject: inet: Add skb_copy_datagram_iter
This patch adds skb_copy_datagram_iter, which is identical to
skb_copy_datagram_iovec except that it operates on iov_iter
instead of iovec.
Eventually all users of skb_copy_datagram_iovec should switch
over to iov_iter and then we can remove skb_copy_datagram_iovec.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 53f4f6c93356..933cfce7fcd9 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -150,6 +150,7 @@
struct net_device;
struct scatterlist;
struct pipe_inode_info;
+struct iov_iter;
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
struct nf_conntrack {
@@ -2653,6 +2654,8 @@ int zerocopy_sg_from_iovec(struct sk_buff *skb, const struct iovec *frm,
int skb_copy_datagram_const_iovec(const struct sk_buff *from, int offset,
const struct iovec *to, int to_offset,
int size);
+int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
+ struct iov_iter *to, int size);
void skb_free_datagram(struct sock *sk, struct sk_buff *skb);
void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb);
int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags);
--
cgit v1.2.1
From bfe1be38fcee0e13ad53175d0b530707c20f93ec Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 7 Nov 2014 21:22:26 +0800
Subject: net: Kill skb_copy_datagram_const_iovec
Now that both macvtap and tun are using skb_copy_datagram_iter, we
can kill the abomination that is skb_copy_datagram_const_iovec.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 933cfce7fcd9..103fbe8113f8 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2651,9 +2651,6 @@ int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
int len);
int zerocopy_sg_from_iovec(struct sk_buff *skb, const struct iovec *frm,
int offset, size_t count);
-int skb_copy_datagram_const_iovec(const struct sk_buff *from, int offset,
- const struct iovec *to, int to_offset,
- int size);
int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
struct iov_iter *to, int size);
void skb_free_datagram(struct sock *sk, struct sk_buff *skb);
--
cgit v1.2.1
From 70f2f5c70440feff01d9ba7c8b4432eb72bd69eb Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 24 Oct 2014 12:11:11 +0100
Subject: drm/i915: Report the actual swizzling back to userspace
Userspace cares about whether or not swizzling depends on the page
address for its direct access into bound objects. Extend the get_tiling
ioctl to report the physical swizzling value in addition to the logical
swizzling value so that userspace can accurately determine when it is
possible for manual detiling.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Akash Goel <akash.goel@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Testcase: igt/gem_tiled_wc
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/uapi/drm/i915_drm.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index ff57f07c3249..2ec0efcaa719 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -876,6 +876,12 @@ struct drm_i915_gem_get_tiling {
* mmap mapping.
*/
__u32 swizzle_mode;
+
+ /**
+ * Returned address bit 6 swizzling required for CPU access through
+ * mmap mapping whilst bound.
+ */
+ __u32 phys_swizzle_mode;
};
struct drm_i915_gem_get_aperture {
--
cgit v1.2.1
From 5559b7bc42f1ff85759246e40ef73abf3171d8d9 Mon Sep 17 00:00:00 2001
From: Cristian Stoica <cristian.stoica@freescale.com>
Date: Tue, 7 Oct 2014 18:25:43 +0300
Subject: devres: support sizes greater than an unsigned long
As in 4f452e8aa492c0b8028ca9b4bdb4d018ba28c6c7, use resource_size_t
to accomodate sizes greater than the size of an unsigned long int on
platforms that have more than 32 bit physical addresses.
Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/io.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/io.h b/include/linux/io.h
index d5fc9b8d8b03..fa02e55e5a2e 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -61,9 +61,9 @@ static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
#define IOMEM_ERR_PTR(err) (__force void __iomem *)ERR_PTR(err)
void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
- unsigned long size);
+ resource_size_t size);
void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
- unsigned long size);
+ resource_size_t size);
void devm_iounmap(struct device *dev, void __iomem *addr);
int check_signature(const volatile void __iomem *io_addr,
const unsigned char *signature, int length);
--
cgit v1.2.1
From e0f1147cc9512d3610d2f2a0f069690661444703 Mon Sep 17 00:00:00 2001
From: Cristian Stoica <cristian.stoica@freescale.com>
Date: Thu, 9 Oct 2014 15:00:27 +0300
Subject: uio: support memory sizes larger than 32 bits
This is a completion to 27a90700a4275c5178b883b65927affdafa5185c
The size field is also increased to allow values larger than 32 bits
on platforms that have more than 32 bit physical addresses.
Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/uio_driver.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index baa81718d985..32c0e83d6239 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -35,7 +35,7 @@ struct uio_map;
struct uio_mem {
const char *name;
phys_addr_t addr;
- unsigned long size;
+ resource_size_t size;
int memtype;
void __iomem *internal_addr;
struct uio_map *map;
--
cgit v1.2.1
From 31d4ea1a093fcf668d5f95af44b8d41488bdb7ec Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Fri, 24 Oct 2014 12:20:27 +0200
Subject: Drivers: hv: util: make struct hv_do_fcopy match Hyper-V host
messages
An attempt to fix fcopy on i586 (bc5a5b0 Drivers: hv: util: Properly pack the data
for file copy functionality) led to a regression on x86_64 (and actually didn't fix
i586 breakage). Fcopy messages from Hyper-V host come in the following format:
struct do_fcopy_hdr | 36 bytes
0000 | 4 bytes
offset | 8 bytes
size | 4 bytes
data | 6144 bytes
On x86_64 struct hv_do_fcopy matched this format without ' __attribute__((packed))'
and on i586 adding ' __attribute__((packed))' to it doesn't change anything. Keep
the structure packed and add padding to match re reality. Tested both i586 and x86_64
on Hyper-V Server 2012 R2.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/hyperv.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/hyperv.h b/include/uapi/linux/hyperv.h
index 0a8e6badb29b..bb1cb73c927a 100644
--- a/include/uapi/linux/hyperv.h
+++ b/include/uapi/linux/hyperv.h
@@ -134,6 +134,7 @@ struct hv_start_fcopy {
struct hv_do_fcopy {
struct hv_fcopy_hdr hdr;
+ __u32 pad;
__u64 offset;
__u32 size;
__u8 data[DATA_FRAGMENT];
--
cgit v1.2.1
From 2b75869bba676c248d8d25ae6d2bd9221dfffdb6 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Mon, 13 Oct 2014 16:41:28 +1100
Subject: sysfs/kernfs: allow attributes to request write buffer be
pre-allocated.
md/raid allows metadata management to be performed in user-space.
A various times, particularly on device failure, the metadata needs
to be updated before further writes can be permitted.
This means that the user-space program which updates metadata much
not block on writeout, and so must not allocate memory.
mlockall(MCL_CURRENT|MCL_FUTURE) and pre-allocation can avoid all
memory allocation issues for user-memory, but that does not help
kernel memory.
Several kernel objects can be pre-allocated. e.g. files opened before
any writes to the array are permitted.
However some kernel allocation happens in places that cannot be
pre-allocated.
In particular, writes to sysfs files (to tell md that it can now
allow writes to the array) allocate a buffer using GFP_KERNEL.
This patch allows attributes to be marked as "PREALLOC". In that case
the maximal buffer is allocated when the file is opened, and then used
on each write instead of allocating a new buffer.
As the same buffer is now shared for all writes on the same file
description, the mutex is extended to cover full use of the buffer
including the copy_from_user().
The new __ATTR_PREALLOC() 'or's a new flag in to the 'mode', which is
inspected by sysfs_add_file_mode_ns() to determine if the file should be
marked as requiring prealloc.
Despite the comment, we *do* use ->seq_show together with ->prealloc
in this patch. The next patch fixes that.
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/kernfs.h | 8 ++++++++
include/linux/sysfs.h | 9 +++++++++
2 files changed, 17 insertions(+)
(limited to 'include')
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 30faf797c2c3..d4e01b358341 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -179,6 +179,7 @@ struct kernfs_open_file {
struct mutex mutex;
int event;
struct list_head list;
+ char *prealloc_buf;
size_t atomic_write_len;
bool mmapped;
@@ -214,6 +215,13 @@ struct kernfs_ops {
* larger ones are rejected with -E2BIG.
*/
size_t atomic_write_len;
+ /*
+ * "prealloc" causes a buffer to be allocated at open for
+ * all read/write requests. As ->seq_show uses seq_read()
+ * which does its own allocation, it is incompatible with
+ * ->prealloc. Provide ->read and ->write with ->prealloc.
+ */
+ bool prealloc;
ssize_t (*write)(struct kernfs_open_file *of, char *buf, size_t bytes,
loff_t off);
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index f97d0dbb59fa..ddad16148bd6 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -70,6 +70,8 @@ struct attribute_group {
* for examples..
*/
+#define SYSFS_PREALLOC 010000
+
#define __ATTR(_name, _mode, _show, _store) { \
.attr = {.name = __stringify(_name), \
.mode = VERIFY_OCTAL_PERMISSIONS(_mode) }, \
@@ -77,6 +79,13 @@ struct attribute_group {
.store = _store, \
}
+#define __ATTR_PREALLOC(_name, _mode, _show, _store) { \
+ .attr = {.name = __stringify(_name), \
+ .mode = SYSFS_PREALLOC | VERIFY_OCTAL_PERMISSIONS(_mode) },\
+ .show = _show, \
+ .store = _store, \
+}
+
#define __ATTR_RO(_name) { \
.attr = { .name = __stringify(_name), .mode = S_IRUGO }, \
.show = _name##_show, \
--
cgit v1.2.1
From 5aaba36318e5995e8c95d077a46d9a4d00fcc1cd Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Tue, 30 Sep 2014 14:48:22 +0100
Subject: cpumask: factor out show_cpumap into separate helper function
Many sysfs *_show function use cpu{list,mask}_scnprintf to copy cpumap
to the buffer aligned to PAGE_SIZE, append '\n' and '\0' to return null
terminated buffer with newline.
This patch creates a new helper function cpumap_print_to_pagebuf in
cpumask.h using newly added bitmap_print_to_pagebuf and consolidates
most of those sysfs functions using the new helper function.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: x86@kernel.org
Cc: linux-acpi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/bitmap.h | 3 +++
include/linux/cpumask.h | 17 +++++++++++++++++
2 files changed, 20 insertions(+)
(limited to 'include')
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index e1c8d080c427..9d5c3224a1e2 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -60,6 +60,7 @@
* bitmap_find_free_region(bitmap, bits, order) Find and allocate bit region
* bitmap_release_region(bitmap, pos, order) Free specified bit region
* bitmap_allocate_region(bitmap, pos, order) Allocate specified bit region
+ * bitmap_print_to_pagebuf(list, buf, mask, nbits) Print bitmap src as list/hex
*/
/*
@@ -145,6 +146,8 @@ extern void bitmap_release_region(unsigned long *bitmap, unsigned int pos, int o
extern int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order);
extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits);
extern int bitmap_ord_to_pos(const unsigned long *bitmap, int n, int bits);
+extern int bitmap_print_to_pagebuf(bool list, char *buf,
+ const unsigned long *maskp, int nmaskbits);
#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG))
#define BITMAP_LAST_WORD_MASK(nbits) \
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 0a9a6da21e74..b950e9d6008b 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -803,6 +803,23 @@ static inline const struct cpumask *get_cpu_mask(unsigned int cpu)
}
#endif /* NR_CPUS > BITS_PER_LONG */
+/**
+ * cpumap_print_to_pagebuf - copies the cpumask into the buffer either
+ * as comma-separated list of cpus or hex values of cpumask
+ * @list: indicates whether the cpumap must be list
+ * @mask: the cpumask to copy
+ * @buf: the buffer to copy into
+ *
+ * Returns the length of the (null-terminated) @buf string, zero if
+ * nothing is copied.
+ */
+static inline ssize_t
+cpumap_print_to_pagebuf(bool list, char *buf, const struct cpumask *mask)
+{
+ return bitmap_print_to_pagebuf(list, buf, cpumask_bits(mask),
+ nr_cpumask_bits);
+}
+
/*
*
* From here down, all obsolete. Use cpumask_ variants!
--
cgit v1.2.1
From 3d52943b3a51497a777e6d7d840a38596a92cee9 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Tue, 30 Sep 2014 14:48:24 +0100
Subject: drivers: base: add cpu_device_create to support per-cpu devices
This patch adds a new function to create per-cpu devices.
This helps in:
1. reusing the device infrastructure to create any cpu related
attributes and corresponding sysfs instead of creating and
dealing with raw kobjects directly
2. retaining the legacy path(/sys/devices/system/cpu/..) to support
existing sysfs ABI
3. avoiding to create links in the bus directory pointing to the
device as there would be per-cpu instance of these devices with
the same name since dev->bus is not populated to cpu_sysbus on
purpose
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/cpu.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index b2d9a43012b2..4260e8594bd7 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -19,6 +19,7 @@
struct device;
struct device_node;
+struct attribute_group;
struct cpu {
int node_id; /* The node which contains the CPU */
@@ -39,6 +40,9 @@ extern void cpu_remove_dev_attr(struct device_attribute *attr);
extern int cpu_add_dev_attr_group(struct attribute_group *attrs);
extern void cpu_remove_dev_attr_group(struct attribute_group *attrs);
+extern struct device *cpu_device_create(struct device *parent, void *drvdata,
+ const struct attribute_group **groups,
+ const char *fmt, ...);
#ifdef CONFIG_HOTPLUG_CPU
extern void unregister_cpu(struct cpu *cpu);
extern ssize_t arch_cpu_probe(const char *, size_t);
--
cgit v1.2.1
From 246246cbde5e840012f853e27630ebb59f409486 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Tue, 30 Sep 2014 14:48:25 +0100
Subject: drivers: base: support cpu cache information interface to userspace
via sysfs
This patch adds initial support for providing processor cache information
to userspace through sysfs interface. This is based on already existing
implementations(x86, ia64, s390 and powerpc) and hence the interface is
intended to be fully compatible.
The main purpose of this generic support is to avoid further code
duplication to support new architectures and also to unify all the existing
different implementations.
This implementation maintains the hierarchy of cache objects which reflects
the system's cache topology. Cache devices are instantiated as needed as
CPUs come online. The cache information is replicated per-cpu even if they are
shared. A per-cpu array of cache information maintained is used mainly for
sysfs-related book keeping.
It also implements the shared_cpu_map attribute, which is essential for
enabling both kernel and user-space to discover the system's overall cache
topology.
This patch also add the missing ABI documentation for the cacheinfo sysfs
interface already, which is well defined and widely used.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-api@vger.kernel.org
Cc: linux390@de.ibm.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: x86@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/cacheinfo.h | 100 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 100 insertions(+)
create mode 100644 include/linux/cacheinfo.h
(limited to 'include')
diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h
new file mode 100644
index 000000000000..3daf5ed392c9
--- /dev/null
+++ b/include/linux/cacheinfo.h
@@ -0,0 +1,100 @@
+#ifndef _LINUX_CACHEINFO_H
+#define _LINUX_CACHEINFO_H
+
+#include <linux/bitops.h>
+#include <linux/cpumask.h>
+#include <linux/smp.h>
+
+struct device_node;
+struct attribute;
+
+enum cache_type {
+ CACHE_TYPE_NOCACHE = 0,
+ CACHE_TYPE_INST = BIT(0),
+ CACHE_TYPE_DATA = BIT(1),
+ CACHE_TYPE_SEPARATE = CACHE_TYPE_INST | CACHE_TYPE_DATA,
+ CACHE_TYPE_UNIFIED = BIT(2),
+};
+
+/**
+ * struct cacheinfo - represent a cache leaf node
+ * @type: type of the cache - data, inst or unified
+ * @level: represents the hierarcy in the multi-level cache
+ * @coherency_line_size: size of each cache line usually representing
+ * the minimum amount of data that gets transferred from memory
+ * @number_of_sets: total number of sets, a set is a collection of cache
+ * lines sharing the same index
+ * @ways_of_associativity: number of ways in which a particular memory
+ * block can be placed in the cache
+ * @physical_line_partition: number of physical cache lines sharing the
+ * same cachetag
+ * @size: Total size of the cache
+ * @shared_cpu_map: logical cpumask representing all the cpus sharing
+ * this cache node
+ * @attributes: bitfield representing various cache attributes
+ * @of_node: if devicetree is used, this represents either the cpu node in
+ * case there's no explicit cache node or the cache node itself in the
+ * device tree
+ * @disable_sysfs: indicates whether this node is visible to the user via
+ * sysfs or not
+ * @priv: pointer to any private data structure specific to particular
+ * cache design
+ *
+ * While @of_node, @disable_sysfs and @priv are used for internal book
+ * keeping, the remaining members form the core properties of the cache
+ */
+struct cacheinfo {
+ enum cache_type type;
+ unsigned int level;
+ unsigned int coherency_line_size;
+ unsigned int number_of_sets;
+ unsigned int ways_of_associativity;
+ unsigned int physical_line_partition;
+ unsigned int size;
+ cpumask_t shared_cpu_map;
+ unsigned int attributes;
+#define CACHE_WRITE_THROUGH BIT(0)
+#define CACHE_WRITE_BACK BIT(1)
+#define CACHE_WRITE_POLICY_MASK \
+ (CACHE_WRITE_THROUGH | CACHE_WRITE_BACK)
+#define CACHE_READ_ALLOCATE BIT(2)
+#define CACHE_WRITE_ALLOCATE BIT(3)
+#define CACHE_ALLOCATE_POLICY_MASK \
+ (CACHE_READ_ALLOCATE | CACHE_WRITE_ALLOCATE)
+
+ struct device_node *of_node;
+ bool disable_sysfs;
+ void *priv;
+};
+
+struct cpu_cacheinfo {
+ struct cacheinfo *info_list;
+ unsigned int num_levels;
+ unsigned int num_leaves;
+};
+
+/*
+ * Helpers to make sure "func" is executed on the cpu whose cache
+ * attributes are being detected
+ */
+#define DEFINE_SMP_CALL_CACHE_FUNCTION(func) \
+static inline void _##func(void *ret) \
+{ \
+ int cpu = smp_processor_id(); \
+ *(int *)ret = __##func(cpu); \
+} \
+ \
+int func(unsigned int cpu) \
+{ \
+ int ret; \
+ smp_call_function_single(cpu, _##func, &ret, true); \
+ return ret; \
+}
+
+struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu);
+int init_cache_level(unsigned int cpu);
+int populate_cache_leaves(unsigned int cpu);
+
+const struct attribute_group *cache_get_priv_group(struct cacheinfo *this_leaf);
+
+#endif /* _LINUX_CACHEINFO_H */
--
cgit v1.2.1
From df32dd2054b6edcbdfd3a31aec24e7fd0edba2ac Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Mon, 3 Nov 2014 12:42:34 -0800
Subject: uapi: resort Kbuild entries
The entries in the Kbuild files are incorrectly sorted.
Matters for aesthetics only.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/Kbuild | 88 +++++++++++++++++++++++------------------------
1 file changed, 44 insertions(+), 44 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 4c94f31a8c99..72298b6887ac 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -37,27 +37,27 @@ header-y += aio_abi.h
header-y += apm_bios.h
header-y += arcfb.h
header-y += atalk.h
-header-y += atm.h
-header-y += atm_eni.h
-header-y += atm_he.h
-header-y += atm_idt77105.h
-header-y += atm_nicstar.h
-header-y += atm_tcp.h
-header-y += atm_zatm.h
header-y += atmapi.h
header-y += atmarp.h
header-y += atmbr2684.h
header-y += atmclip.h
header-y += atmdev.h
+header-y += atm_eni.h
+header-y += atm.h
+header-y += atm_he.h
+header-y += atm_idt77105.h
header-y += atmioc.h
header-y += atmlec.h
header-y += atmmpc.h
+header-y += atm_nicstar.h
header-y += atmppp.h
header-y += atmsap.h
header-y += atmsvc.h
+header-y += atm_tcp.h
+header-y += atm_zatm.h
header-y += audit.h
-header-y += auto_fs.h
header-y += auto_fs4.h
+header-y += auto_fs.h
header-y += auxvec.h
header-y += ax25.h
header-y += b1lli.h
@@ -67,8 +67,8 @@ header-y += bfs_fs.h
header-y += binfmts.h
header-y += blkpg.h
header-y += blktrace_api.h
-header-y += bpf.h
header-y += bpf_common.h
+header-y += bpf.h
header-y += bpqether.h
header-y += bsg.h
header-y += btrfs.h
@@ -93,21 +93,21 @@ header-y += cyclades.h
header-y += cycx_cfm.h
header-y += dcbnl.h
header-y += dccp.h
-header-y += dlm.h
+header-y += dlmconstants.h
header-y += dlm_device.h
+header-y += dlm.h
header-y += dlm_netlink.h
header-y += dlm_plock.h
-header-y += dlmconstants.h
header-y += dm-ioctl.h
header-y += dm-log-userspace.h
header-y += dn.h
header-y += dqblk_xfs.h
header-y += edd.h
header-y += efs_fs_sb.h
+header-y += elfcore.h
header-y += elf-em.h
header-y += elf-fdpic.h
header-y += elf.h
-header-y += elfcore.h
header-y += errno.h
header-y += errqueue.h
header-y += ethtool.h
@@ -131,15 +131,15 @@ header-y += fsl_hypervisor.h
header-y += fuse.h
header-y += futex.h
header-y += gameport.h
-header-y += gen_stats.h
header-y += genetlink.h
+header-y += gen_stats.h
header-y += gfs2_ondisk.h
header-y += gigaset_dev.h
-header-y += hdlc.h
header-y += hdlcdrv.h
+header-y += hdlc.h
header-y += hdreg.h
-header-y += hid.h
header-y += hiddev.h
+header-y += hid.h
header-y += hidraw.h
header-y += hpet.h
header-y += hsr_netlink.h
@@ -151,7 +151,6 @@ header-y += i2o-dev.h
header-y += i8k.h
header-y += icmp.h
header-y += icmpv6.h
-header-y += if.h
header-y += if_addr.h
header-y += if_addrlabel.h
header-y += if_alg.h
@@ -165,6 +164,7 @@ header-y += if_ether.h
header-y += if_fc.h
header-y += if_fddi.h
header-y += if_frad.h
+header-y += if.h
header-y += if_hippi.h
header-y += if_infiniband.h
header-y += if_link.h
@@ -182,40 +182,40 @@ header-y += if_tunnel.h
header-y += if_vlan.h
header-y += if_x25.h
header-y += igmp.h
-header-y += in.h
header-y += in6.h
-header-y += in_route.h
header-y += inet_diag.h
+header-y += in.h
header-y += inotify.h
header-y += input.h
+header-y += in_route.h
header-y += ioctl.h
-header-y += ip.h
header-y += ip6_tunnel.h
-header-y += ip_vs.h
header-y += ipc.h
+header-y += ip.h
header-y += ipmi.h
header-y += ipmi_msgdefs.h
header-y += ipsec.h
header-y += ipv6.h
header-y += ipv6_route.h
+header-y += ip_vs.h
header-y += ipx.h
header-y += irda.h
header-y += irqnr.h
-header-y += isdn.h
header-y += isdn_divertif.h
-header-y += isdn_ppp.h
+header-y += isdn.h
header-y += isdnif.h
+header-y += isdn_ppp.h
header-y += iso_fs.h
-header-y += ivtv.h
header-y += ivtvfb.h
+header-y += ivtv.h
header-y += ixjuser.h
header-y += jffs2.h
header-y += joystick.h
-header-y += kd.h
header-y += kdev_t.h
-header-y += kernel-page-flags.h
-header-y += kernel.h
+header-y += kd.h
header-y += kernelcapi.h
+header-y += kernel.h
+header-y += kernel-page-flags.h
header-y += kexec.h
header-y += keyboard.h
header-y += keyctl.h
@@ -231,6 +231,7 @@ ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm_para.h \
header-y += kvm_para.h
endif
+header-y += hw_breakpoint.h
header-y += l2tp.h
header-y += libc-compat.h
header-y += limits.h
@@ -255,43 +256,43 @@ header-y += mman.h
header-y += mmtimer.h
header-y += mpls.h
header-y += mqueue.h
-header-y += mroute.h
header-y += mroute6.h
+header-y += mroute.h
header-y += msdos_fs.h
header-y += msg.h
header-y += mtio.h
-header-y += n_r3964.h
header-y += nbd.h
-header-y += ncp.h
header-y += ncp_fs.h
+header-y += ncp.h
header-y += ncp_mount.h
header-y += ncp_no.h
header-y += neighbour.h
-header-y += net.h
-header-y += net_dropmon.h
-header-y += net_tstamp.h
header-y += netconf.h
header-y += netdevice.h
-header-y += netlink_diag.h
-header-y += netfilter.h
+header-y += net_dropmon.h
header-y += netfilter_arp.h
header-y += netfilter_bridge.h
header-y += netfilter_decnet.h
+header-y += netfilter.h
header-y += netfilter_ipv4.h
header-y += netfilter_ipv6.h
+header-y += net.h
+header-y += netlink_diag.h
header-y += netlink.h
header-y += netrom.h
+header-y += net_tstamp.h
header-y += nfc.h
-header-y += nfs.h
header-y += nfs2.h
header-y += nfs3.h
header-y += nfs4.h
header-y += nfs4_mount.h
+header-y += nfsacl.h
header-y += nfs_fs.h
+header-y += nfs.h
header-y += nfs_idmap.h
header-y += nfs_mount.h
-header-y += nfsacl.h
header-y += nl80211.h
+header-y += n_r3964.h
header-y += nubus.h
header-y += nvme.h
header-y += nvram.h
@@ -311,16 +312,16 @@ header-y += pfkeyv2.h
header-y += pg.h
header-y += phantom.h
header-y += phonet.h
+header-y += pktcdvd.h
header-y += pkt_cls.h
header-y += pkt_sched.h
-header-y += pktcdvd.h
header-y += pmu.h
header-y += poll.h
header-y += posix_types.h
header-y += ppdev.h
header-y += ppp-comp.h
-header-y += ppp-ioctl.h
header-y += ppp_defs.h
+header-y += ppp-ioctl.h
header-y += pps.h
header-y += prctl.h
header-y += psci.h
@@ -352,13 +353,13 @@ header-y += seccomp.h
header-y += securebits.h
header-y += selinux_netlink.h
header-y += sem.h
-header-y += serial.h
header-y += serial_core.h
+header-y += serial.h
header-y += serial_reg.h
header-y += serio.h
header-y += shm.h
-header-y += signal.h
header-y += signalfd.h
+header-y += signal.h
header-y += smiapp.h
header-y += snmp.h
header-y += sock_diag.h
@@ -367,8 +368,8 @@ header-y += sockios.h
header-y += som.h
header-y += sonet.h
header-y += sonypi.h
-header-y += sound.h
header-y += soundcard.h
+header-y += sound.h
header-y += stat.h
header-y += stddef.h
header-y += string.h
@@ -387,11 +388,11 @@ header-y += time.h
header-y += times.h
header-y += timex.h
header-y += tiocl.h
-header-y += tipc.h
header-y += tipc_config.h
+header-y += tipc.h
header-y += toshiba.h
-header-y += tty.h
header-y += tty_flags.h
+header-y += tty.h
header-y += types.h
header-y += udf_fs_i.h
header-y += udp.h
@@ -437,6 +438,5 @@ header-y += wireless.h
header-y += x25.h
header-y += xattr.h
header-y += xfrm.h
-header-y += hw_breakpoint.h
header-y += zorro.h
header-y += zorro_ids.h
--
cgit v1.2.1
From 36cbb2452cbafca64dcdd3578047433787900cf0 Mon Sep 17 00:00:00 2001
From: Rick Jones <rick.jones2@hp.com>
Date: Thu, 6 Nov 2014 10:37:54 -0800
Subject: udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicasts
As NIC multicast filtering isn't perfect, and some platforms are
quite content to spew broadcasts, we should not trigger an event
for skb:kfree_skb when we do not have a match for such an incoming
datagram. We do though want to avoid sweeping the matter under the
rug entirely, so increment a suitable statistic.
This incorporates feedback from David L. Stevens, Karl Neiss and Eric
Dumazet.
V3 - use bool per David Miller
Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/snmp.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index df40137f33dd..30f541b32895 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -156,6 +156,7 @@ enum
UDP_MIB_RCVBUFERRORS, /* RcvbufErrors */
UDP_MIB_SNDBUFERRORS, /* SndbufErrors */
UDP_MIB_CSUMERRORS, /* InCsumErrors */
+ UDP_MIB_IGNOREDMULTI, /* IgnoredMulti */
__UDP_MIB_MAX
};
--
cgit v1.2.1
From 72c72bdf7bf53353d2d8e055194d27f0128be92b Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Fri, 7 Nov 2014 14:44:25 -0500
Subject: VFS: Rename do_fallocate() to vfs_fallocate()
This function needs to be exported so it can be used by the NFSD module
when responding to the new ALLOCATE and DEALLOCATE operations in NFS
v4.2. Christoph Hellwig suggested renaming the function to stay
consistent with how other vfs functions are named.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a957d4366c24..a88718677579 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2032,7 +2032,7 @@ struct filename {
extern long vfs_truncate(struct path *, loff_t);
extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs,
struct file *filp);
-extern int do_fallocate(struct file *file, int mode, loff_t offset,
+extern int vfs_fallocate(struct file *file, int mode, loff_t offset,
loff_t len);
extern long do_sys_open(int dfd, const char __user *filename, int flags,
umode_t mode);
--
cgit v1.2.1
From a06ae8609b3dd06b957a6e4e965772a8a14d3af5 Mon Sep 17 00:00:00 2001
From: Pratik Patel <pratikp@codeaurora.org>
Date: Mon, 3 Nov 2014 11:07:35 -0700
Subject: coresight: add CoreSight core layer framework
CoreSight components are compliant with the ARM CoreSight
architecture specification and can be connected in various
topologies to suit a particular SoC tracing needs. These trace
components can generally be classified as sources, links and
sinks. Trace data produced by one or more sources flows through
the intermediate links connecting the source to the currently
selected sink.
The CoreSight framework provides an interface for the CoreSight trace
drivers to register themselves with. It's intended to build up a
topological view of the CoreSight components and configure the
correct serie of components on user input via sysfs.
For eg., when enabling a source, the framework builds up a path
consisting of all the components connecting the source to the
currently selected sink(s) and enables all of them.
The framework also supports switching between available sinks
and provides status information to user space applications
through the debugfs interface.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/amba/bus.h | 1 +
include/linux/coresight.h | 263 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 264 insertions(+)
create mode 100644 include/linux/coresight.h
(limited to 'include')
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index c324f5700d1a..d024bd9c9d9b 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -23,6 +23,7 @@
#define AMBA_NR_IRQS 9
#define AMBA_CID 0xb105f00d
+#define CORESIGHT_CID 0xb105900d
struct clk;
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
new file mode 100644
index 000000000000..bdde4199c74a
--- /dev/null
+++ b/include/linux/coresight.h
@@ -0,0 +1,263 @@
+/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_CORESIGHT_H
+#define _LINUX_CORESIGHT_H
+
+#include <linux/device.h>
+
+/* Peripheral id registers (0xFD0-0xFEC) */
+#define CORESIGHT_PERIPHIDR4 0xfd0
+#define CORESIGHT_PERIPHIDR5 0xfd4
+#define CORESIGHT_PERIPHIDR6 0xfd8
+#define CORESIGHT_PERIPHIDR7 0xfdC
+#define CORESIGHT_PERIPHIDR0 0xfe0
+#define CORESIGHT_PERIPHIDR1 0xfe4
+#define CORESIGHT_PERIPHIDR2 0xfe8
+#define CORESIGHT_PERIPHIDR3 0xfeC
+/* Component id registers (0xFF0-0xFFC) */
+#define CORESIGHT_COMPIDR0 0xff0
+#define CORESIGHT_COMPIDR1 0xff4
+#define CORESIGHT_COMPIDR2 0xff8
+#define CORESIGHT_COMPIDR3 0xffC
+
+#define ETM_ARCH_V3_3 0x23
+#define ETM_ARCH_V3_5 0x25
+#define PFT_ARCH_V1_0 0x30
+#define PFT_ARCH_V1_1 0x31
+
+#define CORESIGHT_UNLOCK 0xc5acce55
+
+extern struct bus_type coresight_bustype;
+
+enum coresight_dev_type {
+ CORESIGHT_DEV_TYPE_NONE,
+ CORESIGHT_DEV_TYPE_SINK,
+ CORESIGHT_DEV_TYPE_LINK,
+ CORESIGHT_DEV_TYPE_LINKSINK,
+ CORESIGHT_DEV_TYPE_SOURCE,
+};
+
+enum coresight_dev_subtype_sink {
+ CORESIGHT_DEV_SUBTYPE_SINK_NONE,
+ CORESIGHT_DEV_SUBTYPE_SINK_PORT,
+ CORESIGHT_DEV_SUBTYPE_SINK_BUFFER,
+};
+
+enum coresight_dev_subtype_link {
+ CORESIGHT_DEV_SUBTYPE_LINK_NONE,
+ CORESIGHT_DEV_SUBTYPE_LINK_MERG,
+ CORESIGHT_DEV_SUBTYPE_LINK_SPLIT,
+ CORESIGHT_DEV_SUBTYPE_LINK_FIFO,
+};
+
+enum coresight_dev_subtype_source {
+ CORESIGHT_DEV_SUBTYPE_SOURCE_NONE,
+ CORESIGHT_DEV_SUBTYPE_SOURCE_PROC,
+ CORESIGHT_DEV_SUBTYPE_SOURCE_BUS,
+ CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE,
+};
+
+/**
+ * struct coresight_dev_subtype - further characterisation of a type
+ * @sink_subtype: type of sink this component is, as defined
+ by @coresight_dev_subtype_sink.
+ * @link_subtype: type of link this component is, as defined
+ by @coresight_dev_subtype_link.
+ * @source_subtype: type of source this component is, as defined
+ by @coresight_dev_subtype_source.
+ */
+struct coresight_dev_subtype {
+ enum coresight_dev_subtype_sink sink_subtype;
+ enum coresight_dev_subtype_link link_subtype;
+ enum coresight_dev_subtype_source source_subtype;
+};
+
+/**
+ * struct coresight_platform_data - data harvested from the DT specification
+ * @cpu: the CPU a source belongs to. Only applicable for ETM/PTMs.
+ * @name: name of the component as shown under sysfs.
+ * @nr_inport: number of input ports for this component.
+ * @outports: list of remote enpoint port number.
+ * @child_names:name of all child components connected to this device.
+ * @child_ports:child component port number the current component is
+ connected to.
+ * @nr_outport: number of output ports for this component.
+ * @clk: The clock this component is associated to.
+ */
+struct coresight_platform_data {
+ int cpu;
+ const char *name;
+ int nr_inport;
+ int *outports;
+ const char **child_names;
+ int *child_ports;
+ int nr_outport;
+ struct clk *clk;
+};
+
+/**
+ * struct coresight_desc - description of a component required from drivers
+ * @type: as defined by @coresight_dev_type.
+ * @subtype: as defined by @coresight_dev_subtype.
+ * @ops: generic operations for this component, as defined
+ by @coresight_ops.
+ * @pdata: platform data collected from DT.
+ * @dev: The device entity associated to this component.
+ * @groups :operations specific to this component. These will end up
+ in the component's sysfs sub-directory.
+ */
+struct coresight_desc {
+ enum coresight_dev_type type;
+ struct coresight_dev_subtype subtype;
+ const struct coresight_ops *ops;
+ struct coresight_platform_data *pdata;
+ struct device *dev;
+ const struct attribute_group **groups;
+};
+
+/**
+ * struct coresight_connection - representation of a single connection
+ * @ref_count: keeping count a port' references.
+ * @outport: a connection's output port number.
+ * @chid_name: remote component's name.
+ * @child_port: remote component's port number @output is connected to.
+ * @child_dev: a @coresight_device representation of the component
+ connected to @outport.
+ */
+struct coresight_connection {
+ int outport;
+ const char *child_name;
+ int child_port;
+ struct coresight_device *child_dev;
+};
+
+/**
+ * struct coresight_device - representation of a device as used by the framework
+ * @nr_inport: number of input port associated to this component.
+ * @nr_outport: number of output port associated to this component.
+ * @type: as defined by @coresight_dev_type.
+ * @subtype: as defined by @coresight_dev_subtype.
+ * @ops: generic operations for this component, as defined
+ by @coresight_ops.
+ * @dev: The device entity associated to this component.
+ * @refcnt: keep track of what is in use.
+ * @path_link: link of current component into the path being enabled.
+ * @orphan: true if the component has connections that haven't been linked.
+ * @enable: 'true' if component is currently part of an active path.
+ * @activated: 'true' only if a _sink_ has been activated. A sink can be
+ activated but not yet enabled. Enabling for a _sink_
+ happens when a source has been selected for that it.
+ */
+struct coresight_device {
+ struct coresight_connection *conns;
+ int nr_inport;
+ int nr_outport;
+ enum coresight_dev_type type;
+ struct coresight_dev_subtype subtype;
+ const struct coresight_ops *ops;
+ struct device dev;
+ atomic_t *refcnt;
+ struct list_head path_link;
+ bool orphan;
+ bool enable; /* true only if configured as part of a path */
+ bool activated; /* true only if a sink is part of a path */
+};
+
+#define to_coresight_device(d) container_of(d, struct coresight_device, dev)
+
+#define source_ops(csdev) csdev->ops->source_ops
+#define sink_ops(csdev) csdev->ops->sink_ops
+#define link_ops(csdev) csdev->ops->link_ops
+
+#define CORESIGHT_DEBUGFS_ENTRY(__name, __entry_name, \
+ __mode, __get, __set, __fmt) \
+DEFINE_SIMPLE_ATTRIBUTE(__name ## _ops, __get, __set, __fmt); \
+static const struct coresight_ops_entry __name ## _entry = { \
+ .name = __entry_name, \
+ .mode = __mode, \
+ .ops = &__name ## _ops \
+}
+
+/**
+ * struct coresight_ops_sink - basic operations for a sink
+ * Operations available for sinks
+ * @enable: enables the sink.
+ * @disable: disables the sink.
+ */
+struct coresight_ops_sink {
+ int (*enable)(struct coresight_device *csdev);
+ void (*disable)(struct coresight_device *csdev);
+};
+
+/**
+ * struct coresight_ops_link - basic operations for a link
+ * Operations available for links.
+ * @enable: enables flow between iport and oport.
+ * @disable: disables flow between iport and oport.
+ */
+struct coresight_ops_link {
+ int (*enable)(struct coresight_device *csdev, int iport, int oport);
+ void (*disable)(struct coresight_device *csdev, int iport, int oport);
+};
+
+/**
+ * struct coresight_ops_source - basic operations for a source
+ * Operations available for sources.
+ * @trace_id: returns the value of the component's trace ID as known
+ to the HW.
+ * @enable: enables tracing from a source.
+ * @disable: disables tracing for a source.
+ */
+struct coresight_ops_source {
+ int (*trace_id)(struct coresight_device *csdev);
+ int (*enable)(struct coresight_device *csdev);
+ void (*disable)(struct coresight_device *csdev);
+};
+
+struct coresight_ops {
+ const struct coresight_ops_sink *sink_ops;
+ const struct coresight_ops_link *link_ops;
+ const struct coresight_ops_source *source_ops;
+};
+
+#ifdef CONFIG_CORESIGHT
+extern struct coresight_device *
+coresight_register(struct coresight_desc *desc);
+extern void coresight_unregister(struct coresight_device *csdev);
+extern int coresight_enable(struct coresight_device *csdev);
+extern void coresight_disable(struct coresight_device *csdev);
+extern int coresight_is_bit_set(u32 val, int position, int value);
+extern int coresight_timeout(void __iomem *addr, u32 offset,
+ int position, int value);
+#ifdef CONFIG_OF
+extern struct coresight_platform_data *of_get_coresight_platform_data(
+ struct device *dev, struct device_node *node);
+#endif
+#else
+static inline struct coresight_device *
+coresight_register(struct coresight_desc *desc) { return NULL; }
+static inline void coresight_unregister(struct coresight_device *csdev) {}
+static inline int
+coresight_enable(struct coresight_device *csdev) { return -ENOSYS; }
+static inline void coresight_disable(struct coresight_device *csdev) {}
+static inline int coresight_is_bit_set(u32 val, int position, int value)
+ { return 0; }
+static inline int coresight_timeout(void __iomem *addr, u32 offset,
+ int position, int value) { return 1; }
+#ifdef CONFIG_OF
+static inline struct coresight_platform_data *of_get_coresight_platform_data(
+ struct device *dev, struct device_node *node) { return NULL; }
+#endif
+#endif
+
+#endif
--
cgit v1.2.1
From c16561e8df7a64764ef61f02221e98273add325a Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 6 Nov 2014 00:37:08 +0100
Subject: PM / Domains: Change prototype for the attach and detach callbacks
Convert the prototypes to return an int in order to support error
handling in these callbacks.
Also, as suggested by Dmitry Torokhov, pass the domain pointer for use
inside the callbacks, and so that they match the existing
power_on/power_off callbacks which currently take the domain pointer.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[ khilman: added domain as parameter to callbacks, as suggested by Dmitry ]
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 73e938b7e937..b3ed7766a291 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -72,8 +72,10 @@ struct generic_pm_domain {
bool max_off_time_changed;
bool cached_power_down_ok;
struct gpd_cpuidle_data *cpuidle_data;
- void (*attach_dev)(struct device *dev);
- void (*detach_dev)(struct device *dev);
+ int (*attach_dev)(struct generic_pm_domain *domain,
+ struct device *dev);
+ void (*detach_dev)(struct generic_pm_domain *domain,
+ struct device *dev);
};
static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)
--
cgit v1.2.1
From 332fd7c4fef5f3b166e93decb07fd69eb24f7998 Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@gmail.com>
Date: Thu, 6 Nov 2014 22:44:17 -0800
Subject: genirq: Generic chip: Change irq_reg_{readl,writel} arguments
Pass in the irq_chip_generic struct so we can use different readl/writel
settings for each irqchip driver, when appropriate. Compute
(gc->reg_base + reg_offset) in the helper function because this is pretty
much what all callers want to do anyway.
Compile-tested using the following configurations:
at91_dt_defconfig (CONFIG_ATMEL_AIC_IRQ=y)
sama5_defconfig (CONFIG_ATMEL_AIC5_IRQ=y)
sunxi_defconfig (CONFIG_ARCH_SUNXI=y)
tb10x (ARC) is untested.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/1415342669-30640-3-git-send-email-cernekee@gmail.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irq.h | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 03f48d936f66..ed1135d32d80 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -20,6 +20,7 @@
#include <linux/errno.h>
#include <linux/topology.h>
#include <linux/wait.h>
+#include <linux/io.h>
#include <asm/irq.h>
#include <asm/ptrace.h>
@@ -639,13 +640,6 @@ void arch_teardown_hwirq(unsigned int irq);
void irq_init_desc(unsigned int irq);
#endif
-#ifndef irq_reg_writel
-# define irq_reg_writel(val, addr) writel(val, addr)
-#endif
-#ifndef irq_reg_readl
-# define irq_reg_readl(addr) readl(addr)
-#endif
-
/**
* struct irq_chip_regs - register offsets for struct irq_gci
* @enable: Enable register offset to reg_base
@@ -821,4 +815,16 @@ static inline void irq_gc_lock(struct irq_chip_generic *gc) { }
static inline void irq_gc_unlock(struct irq_chip_generic *gc) { }
#endif
+static inline void irq_reg_writel(struct irq_chip_generic *gc,
+ u32 val, int reg_offset)
+{
+ writel(val, gc->reg_base + reg_offset);
+}
+
+static inline u32 irq_reg_readl(struct irq_chip_generic *gc,
+ int reg_offset)
+{
+ return readl(gc->reg_base + reg_offset);
+}
+
#endif /* _LINUX_IRQ_H */
--
cgit v1.2.1
From 2b28037632b1e62b92c0616f08652d806008c80d Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@gmail.com>
Date: Thu, 6 Nov 2014 22:44:18 -0800
Subject: genirq: Generic chip: Allow irqchip drivers to override
irq_reg_{readl,writel}
Currently, these I/O accessors always assume little endian 32-bit
registers (readl/writel). On some systems the IRQ registers need to be
accessed in BE mode or using 16-bit loads/stores, so we will provide a
way to override the default behavior.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/1415342669-30640-4-git-send-email-cernekee@gmail.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irq.h | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index ed1135d32d80..0fecd95ba271 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -686,6 +686,8 @@ struct irq_chip_type {
* struct irq_chip_generic - Generic irq chip data structure
* @lock: Lock to protect register and cache data access
* @reg_base: Register base address (virtual)
+ * @reg_readl: Alternate I/O accessor (defaults to readl if NULL)
+ * @reg_writel: Alternate I/O accessor (defaults to writel if NULL)
* @irq_base: Interrupt base nr for this chip
* @irq_cnt: Number of interrupts handled by this chip
* @mask_cache: Cached mask register shared between all chip types
@@ -710,6 +712,8 @@ struct irq_chip_type {
struct irq_chip_generic {
raw_spinlock_t lock;
void __iomem *reg_base;
+ u32 (*reg_readl)(void __iomem *addr);
+ void (*reg_writel)(u32 val, void __iomem *addr);
unsigned int irq_base;
unsigned int irq_cnt;
u32 mask_cache;
@@ -818,13 +822,19 @@ static inline void irq_gc_unlock(struct irq_chip_generic *gc) { }
static inline void irq_reg_writel(struct irq_chip_generic *gc,
u32 val, int reg_offset)
{
- writel(val, gc->reg_base + reg_offset);
+ if (gc->reg_writel)
+ gc->reg_writel(val, gc->reg_base + reg_offset);
+ else
+ writel(val, gc->reg_base + reg_offset);
}
static inline u32 irq_reg_readl(struct irq_chip_generic *gc,
int reg_offset)
{
- return readl(gc->reg_base + reg_offset);
+ if (gc->reg_readl)
+ return gc->reg_readl(gc->reg_base + reg_offset);
+ else
+ return readl(gc->reg_base + reg_offset);
}
#endif /* _LINUX_IRQ_H */
--
cgit v1.2.1
From b79055952badbd73710685643bab44104f2509ea Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@gmail.com>
Date: Thu, 6 Nov 2014 22:44:19 -0800
Subject: genirq: Generic chip: Add big endian I/O accessors
Use io{read,write}32be if the caller specified IRQ_GC_BE_IO when creating
the irqchip.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/1415342669-30640-5-git-send-email-cernekee@gmail.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irq.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 0fecd95ba271..8588e5efe577 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -738,12 +738,14 @@ struct irq_chip_generic {
* the parent irq. Usually GPIO implementations
* @IRQ_GC_MASK_CACHE_PER_TYPE: Mask cache is chip type private
* @IRQ_GC_NO_MASK: Do not calculate irq_data->mask
+ * @IRQ_GC_BE_IO: Use big-endian register accesses (default: LE)
*/
enum irq_gc_flags {
IRQ_GC_INIT_MASK_CACHE = 1 << 0,
IRQ_GC_INIT_NESTED_LOCK = 1 << 1,
IRQ_GC_MASK_CACHE_PER_TYPE = 1 << 2,
IRQ_GC_NO_MASK = 1 << 3,
+ IRQ_GC_BE_IO = 1 << 4,
};
/*
--
cgit v1.2.1
From 427d204c86e095bb91eb8af381bd90a48376a860 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 8 Nov 2014 16:38:07 +0100
Subject: ASoC: Remove snd_soc_cache_sync() implementation
This function has no more non regmap user, which means we can remove the
implementation of the function and associated functions and structure
fields.
For convenience we keep a static inline version of the function that
forwards calls to regcache_sync() unconditionally.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 19 ++++++++++++-------
include/trace/events/asoc.h | 25 -------------------------
2 files changed, 12 insertions(+), 32 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7ba7130037a0..fadcb351f3e1 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -409,13 +409,9 @@ int devm_snd_soc_register_component(struct device *dev,
const struct snd_soc_component_driver *cmpnt_drv,
struct snd_soc_dai_driver *dai_drv, int num_dai);
void snd_soc_unregister_component(struct device *dev);
-int snd_soc_cache_sync(struct snd_soc_codec *codec);
int snd_soc_cache_init(struct snd_soc_codec *codec);
int snd_soc_cache_exit(struct snd_soc_codec *codec);
-int snd_soc_cache_write(struct snd_soc_codec *codec,
- unsigned int reg, unsigned int value);
-int snd_soc_cache_read(struct snd_soc_codec *codec,
- unsigned int reg, unsigned int *value);
+
int snd_soc_platform_read(struct snd_soc_platform *platform,
unsigned int reg);
int snd_soc_platform_write(struct snd_soc_platform *platform,
@@ -791,13 +787,11 @@ struct snd_soc_codec {
unsigned int ac97_registered:1; /* Codec has been AC97 registered */
unsigned int ac97_created:1; /* Codec has been created by SoC */
unsigned int cache_init:1; /* codec cache has been initialized */
- u32 cache_sync; /* Cache needs to be synced to hardware */
/* codec IO */
void *control_data; /* codec control (i2c/3wire) data */
hw_write_t hw_write;
void *reg_cache;
- struct mutex cache_rw_mutex;
/* component */
struct snd_soc_component component;
@@ -1264,6 +1258,17 @@ unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int val);
+/**
+ * snd_soc_cache_sync() - Sync the register cache with the hardware
+ * @codec: CODEC to sync
+ *
+ * Note: This function will call regcache_sync()
+ */
+static inline int snd_soc_cache_sync(struct snd_soc_codec *codec)
+{
+ return regcache_sync(codec->component.regmap);
+}
+
/* component IO */
int snd_soc_component_read(struct snd_soc_component *component,
unsigned int reg, unsigned int *val);
diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h
index b04ee7e5a466..88cf39d96d0f 100644
--- a/include/trace/events/asoc.h
+++ b/include/trace/events/asoc.h
@@ -288,31 +288,6 @@ TRACE_EVENT(snd_soc_jack_notify,
TP_printk("jack=%s %x", __get_str(name), (int)__entry->val)
);
-TRACE_EVENT(snd_soc_cache_sync,
-
- TP_PROTO(struct snd_soc_codec *codec, const char *type,
- const char *status),
-
- TP_ARGS(codec, type, status),
-
- TP_STRUCT__entry(
- __string( name, codec->component.name)
- __string( status, status )
- __string( type, type )
- __field( int, id )
- ),
-
- TP_fast_assign(
- __assign_str(name, codec->component.name);
- __assign_str(status, status);
- __assign_str(type, type);
- __entry->id = codec->component.id;
- ),
-
- TP_printk("codec=%s.%d type=%s status=%s", __get_str(name),
- (int)__entry->id, __get_str(type), __get_str(status))
-);
-
#endif /* _TRACE_ASOC_H */
/* This part must be outside protection */
--
cgit v1.2.1
From ce674173e9f4ef7fd0dc04ea0773cdedfbf8e366 Mon Sep 17 00:00:00 2001
From: Ana Rey <anarey@gmail.com>
Date: Mon, 3 Nov 2014 18:10:50 +0100
Subject: netfilter: nft_meta: add cgroup support
This allows you to filter traffic by process control group (cgroup).
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/nf_tables.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 16f62a5cf04d..832bc46db78b 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -579,6 +579,7 @@ enum nft_exthdr_attributes {
* @NFT_META_CPU: cpu id through smp_processor_id()
* @NFT_META_IIFGROUP: packet input interface group
* @NFT_META_OIFGROUP: packet output interface group
+ * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
*/
enum nft_meta_keys {
NFT_META_LEN,
@@ -604,6 +605,7 @@ enum nft_meta_keys {
NFT_META_CPU,
NFT_META_IIFGROUP,
NFT_META_OIFGROUP,
+ NFT_META_CGROUP,
};
/**
--
cgit v1.2.1
From 1fb8510cdb5b7befe8a59f533c7fc12ef0dac73e Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 7 Nov 2014 17:08:28 +0100
Subject: ALSA: pcm: Add snd_pcm_stop_xrun() helper
Add a new helper function snd_pcm_stop_xrun() to the standard sequnce
lock/snd_pcm_stop(XRUN)/unlock by a single call, and replace the
existing open codes with this helper.
The function checks the PCM running state to prevent setting the wrong
state, too, for more safety.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 0b8daeed0a33..40289ec2451c 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -506,6 +506,7 @@ int snd_pcm_status(struct snd_pcm_substream *substream,
int snd_pcm_start(struct snd_pcm_substream *substream);
int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t status);
int snd_pcm_drain_done(struct snd_pcm_substream *substream);
+int snd_pcm_stop_xrun(struct snd_pcm_substream *substream);
#ifdef CONFIG_PM
int snd_pcm_suspend(struct snd_pcm_substream *substream);
int snd_pcm_suspend_all(struct snd_pcm *pcm);
--
cgit v1.2.1
From 863e88f255dac0657e57d5f1a1f95ee8733f8c13 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 9 Nov 2014 08:36:45 +0100
Subject: mac802154: move mac pib attributes into wpan_dev
This patch moves all mac pib attributes into the wpan_dev struct.
Furthermore we can easier access these attributes over the netdev
802154_ptr pointer. Currently this is only possible over a complicated
callback structure in mac802154 because subif data structure is
accessable inside mac802154 only.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 24 +++++++++++++++++++-----
1 file changed, 19 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 9d99b9655760..ac8dd3b8669d 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -52,14 +52,9 @@ struct wpan_phy {
u32 channels_supported[32];
s8 transmit_power;
u8 cca_mode;
- u8 min_be;
- u8 max_be;
- u8 csma_retries;
- s8 frame_retries;
__le64 perm_extended_addr;
- bool lbt;
s32 cca_ed_level;
struct device dev;
@@ -69,6 +64,25 @@ struct wpan_phy {
struct wpan_dev {
struct wpan_phy *wpan_phy;
+
+ /* MAC PIB */
+ __le16 pan_id;
+ __le16 short_addr;
+ __le64 extended_addr;
+
+ /* MAC BSN field */
+ u8 bsn;
+ /* MAC DSN field */
+ u8 dsn;
+
+ u8 min_be;
+ u8 max_be;
+ u8 csma_retries;
+ s8 frame_retries;
+
+ bool lbt;
+
+ bool promiscuous_mode;
};
#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
--
cgit v1.2.1
From f601379fa113906b8bf4389a62002def283519c9 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 9 Nov 2014 08:36:47 +0100
Subject: ieee802154: rename wpan_phy_alloc
This patch renames the wpan_phy_alloc function to wpan_phy_new. This
naming convention is like wireless and "wiphy_new" function.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index ac8dd3b8669d..72c4723a1206 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -88,7 +88,7 @@ struct wpan_dev {
#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
struct wpan_phy *
-wpan_phy_alloc(const struct cfg802154_ops *ops, size_t priv_size);
+wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size);
static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
{
phy->dev.parent = dev;
--
cgit v1.2.1
From 190ac1ca33442dc25a172ece0f34746a7e1514f3 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 9 Nov 2014 08:36:49 +0100
Subject: ieee802154: add iftype to wpan_dev
This patch adds an iftype argument to the wpan_dev. This is needed to
get the interface type from netdev ieee802154_ptr. The subif data struct
can only accessible in mac802154 branch.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 72c4723a1206..7e1bc21423b0 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -64,6 +64,7 @@ struct wpan_phy {
struct wpan_dev {
struct wpan_phy *wpan_phy;
+ int iftype;
/* MAC PIB */
__le16 pan_id;
--
cgit v1.2.1
From fcf39e6e88e9492f6688ec8ba4e1be622b904232 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 9 Nov 2014 08:36:50 +0100
Subject: ieee802154: add wpan_dev_list
This patch adds a wpan_dev_list list into cfg802154_registered_device
struct. Also adding new wpan_dev into this list while
cfg802154_netdev_notifier_call. This behaviour is mostly grab from
wireless core.c implementation and is needed for preparing nl802154
framework.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 7e1bc21423b0..e5570e011116 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -66,6 +66,12 @@ struct wpan_dev {
struct wpan_phy *wpan_phy;
int iftype;
+ /* the remainder of this struct should be private to cfg802154 */
+ struct list_head list;
+ struct net_device *netdev;
+
+ u32 identifier;
+
/* MAC PIB */
__le16 pan_id;
__le16 short_addr;
--
cgit v1.2.1
From 3ae75e02c34b5b8d521b0470522e540512ce24e3 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Sun, 9 Nov 2014 08:36:52 +0100
Subject: ieee802154: add new nl802154 header
This patch adds the new userspace header for nl802154. We don't place
this header in include/uapi now. This header could be modified in the
next time.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/nl802154.h | 122 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 122 insertions(+)
create mode 100644 include/net/nl802154.h
(limited to 'include')
diff --git a/include/net/nl802154.h b/include/net/nl802154.h
new file mode 100644
index 000000000000..6dbd406ca41b
--- /dev/null
+++ b/include/net/nl802154.h
@@ -0,0 +1,122 @@
+#ifndef __NL802154_H
+#define __NL802154_H
+/*
+ * 802.15.4 netlink interface public header
+ *
+ * Copyright 2014 Alexander Aring <aar@pengutronix.de>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#define NL802154_GENL_NAME "nl802154"
+
+enum nl802154_commands {
+/* don't change the order or add anything between, this is ABI! */
+/* currently we don't shipping this file via uapi, ignore the above one */
+ NL802154_CMD_UNSPEC,
+
+ NL802154_CMD_GET_WPAN_PHY, /* can dump */
+ NL802154_CMD_SET_WPAN_PHY,
+ NL802154_CMD_NEW_WPAN_PHY,
+ NL802154_CMD_DEL_WPAN_PHY,
+
+ NL802154_CMD_GET_INTERFACE, /* can dump */
+ NL802154_CMD_SET_INTERFACE,
+ NL802154_CMD_NEW_INTERFACE,
+ NL802154_CMD_DEL_INTERFACE,
+
+ NL802154_CMD_SET_CHANNEL,
+
+ NL802154_CMD_SET_PAN_ID,
+ NL802154_CMD_SET_SHORT_ADDR,
+
+ NL802154_CMD_SET_TX_POWER,
+ NL802154_CMD_SET_CCA_MODE,
+ NL802154_CMD_SET_CCA_ED_LEVEL,
+
+ NL802154_CMD_SET_MAX_FRAME_RETRIES,
+
+ NL802154_CMD_SET_BACKOFF_EXPONENT,
+ NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
+
+ NL802154_CMD_SET_LBT_MODE,
+
+ /* add new commands above here */
+
+ /* used to define NL802154_CMD_MAX below */
+ __NL802154_CMD_AFTER_LAST,
+ NL802154_CMD_MAX = __NL802154_CMD_AFTER_LAST - 1
+};
+
+enum nl802154_attrs {
+/* don't change the order or add anything between, this is ABI! */
+/* currently we don't shipping this file via uapi, ignore the above one */
+ NL802154_ATTR_UNSPEC,
+
+ NL802154_ATTR_WPAN_PHY,
+ NL802154_ATTR_WPAN_PHY_NAME,
+
+ NL802154_ATTR_IFINDEX,
+ NL802154_ATTR_IFNAME,
+ NL802154_ATTR_IFTYPE,
+
+ NL802154_ATTR_WPAN_DEV,
+
+ NL802154_ATTR_PAGE,
+ NL802154_ATTR_CHANNEL,
+
+ NL802154_ATTR_PAN_ID,
+ NL802154_ATTR_SHORT_ADDR,
+
+ NL802154_ATTR_TX_POWER,
+
+ NL802154_ATTR_CCA_MODE,
+ NL802154_ATTR_CCA_MODE3_AND,
+ NL802154_ATTR_CCA_ED_LEVEL,
+
+ NL802154_ATTR_MAX_FRAME_RETRIES,
+
+ NL802154_ATTR_MAX_BE,
+ NL802154_ATTR_MIN_BE,
+ NL802154_ATTR_MAX_CSMA_BACKOFFS,
+
+ NL802154_ATTR_LBT_MODE,
+
+ NL802154_ATTR_GENERATION,
+
+ NL802154_ATTR_CHANNELS_SUPPORTED,
+ NL802154_ATTR_SUPPORTED_CHANNEL,
+
+ NL802154_ATTR_EXTENDED_ADDR,
+
+ /* add attributes here, update the policy in nl802154.c */
+
+ __NL802154_ATTR_AFTER_LAST,
+ NL802154_ATTR_MAX = __NL802154_ATTR_AFTER_LAST - 1
+};
+
+enum nl802154_iftype {
+ /* for backwards compatibility TODO */
+ NL802154_IFTYPE_UNSPEC = -1,
+
+ NL802154_IFTYPE_NODE,
+ NL802154_IFTYPE_MONITOR,
+ NL802154_IFTYPE_COORD,
+
+ /* keep last */
+ NUM_NL802154_IFTYPES,
+ NL802154_IFTYPE_MAX = NUM_NL802154_IFTYPES - 1
+};
+
+#endif /* __NL802154_H */
--
cgit v1.2.1
From ba3240beae340bc84dad16f2b67590f32d25d5a6 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 3 Nov 2014 17:44:51 -0800
Subject: ARM: shmobile: r8a7790: Add Audio DMAC devices to DT
Instantiate the two Audio DMA controllers in the r8a7790 device tree.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[geert: corrected spelling of audmac1]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7790-clock.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7790-clock.h b/include/dt-bindings/clock/r8a7790-clock.h
index e3a3fb80feb6..c27b3b5133b9 100644
--- a/include/dt-bindings/clock/r8a7790-clock.h
+++ b/include/dt-bindings/clock/r8a7790-clock.h
@@ -78,6 +78,8 @@
#define R8A7790_CLK_USBDMAC1 31
/* MSTP5 */
+#define R8A7790_CLK_AUDIO_DMAC1 1
+#define R8A7790_CLK_AUDIO_DMAC0 2
#define R8A7790_CLK_THERMAL 22
#define R8A7790_CLK_PWM 23
--
cgit v1.2.1
From 8994fff677610e2e0aacb25c39b49739444844b0 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 3 Nov 2014 17:45:37 -0800
Subject: ARM: shmobile: r8a7791: Add Audio DMAC devices to DT
Instantiate the two Audio DMA controllers in the r8a7791 device tree.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[geert: corrected spelling of audmac1]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7791-clock.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7791-clock.h b/include/dt-bindings/clock/r8a7791-clock.h
index dcececd9f4d0..3ea2bbc0da3f 100644
--- a/include/dt-bindings/clock/r8a7791-clock.h
+++ b/include/dt-bindings/clock/r8a7791-clock.h
@@ -69,6 +69,8 @@
#define R8A7791_CLK_USBDMAC1 31
/* MSTP5 */
+#define R8A7791_CLK_AUDIO_DMAC1 1
+#define R8A7791_CLK_AUDIO_DMAC0 2
#define R8A7791_CLK_THERMAL 22
#define R8A7791_CLK_PWM 23
--
cgit v1.2.1
From 8f0aad6f35f7e8b3118b7b8a65e8e76b135cc4cb Mon Sep 17 00:00:00 2001
From: Wenyu Zhang <wenyuz@vmware.com>
Date: Thu, 6 Nov 2014 06:51:24 -0800
Subject: openvswitch: Extend packet attribute for egress tunnel info
OVS vswitch has extended IPFIX exporter to export tunnel headers
to improve network visibility.
To export this information userspace needs to know egress tunnel
for given packet. By extending packet attributes datapath can
export egress tunnel info for given packet. So that userspace
can ask for egress tunnel info in userspace action. This
information is used to build IPFIX data for given flow.
Signed-off-by: Wenyu Zhang <wenyuz@vmware.com>
Acked-by: Romain Lenglet <rlenglet@vmware.com>
Acked-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
---
include/uapi/linux/openvswitch.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 26c36c4cf7e2..cf8185661e52 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -157,6 +157,11 @@ enum ovs_packet_cmd {
* notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
* %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content
* specified there.
+ * @OVS_PACKET_ATTR_EGRESS_TUN_KEY: Present for an %OVS_PACKET_CMD_ACTION
+ * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
+ * %OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute, which is sent only if the
+ * output port is actually a tunnel port. Contains the output tunnel key
+ * extracted from the packet as nested %OVS_TUNNEL_KEY_ATTR_* attributes.
*
* These attributes follow the &struct ovs_header within the Generic Netlink
* payload for %OVS_PACKET_* commands.
@@ -167,6 +172,8 @@ enum ovs_packet_attr {
OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */
OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */
+ OVS_PACKET_ATTR_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_*
+ attributes. */
__OVS_PACKET_ATTR_MAX
};
@@ -315,6 +322,8 @@ enum ovs_tunnel_key_attr {
OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet. */
OVS_TUNNEL_KEY_ATTR_OAM, /* No argument. OAM frame. */
OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options. */
+ OVS_TUNNEL_KEY_ATTR_TP_SRC, /* be16 src Transport Port. */
+ OVS_TUNNEL_KEY_ATTR_TP_DST, /* be16 dst Transport Port. */
__OVS_TUNNEL_KEY_ATTR_MAX
};
@@ -480,11 +489,15 @@ enum ovs_sample_attr {
* message should be sent. Required.
* @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is
* copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
+ * @OVS_USERSPACE_ATTR_EGRESS_TUN_PORT: If present, u32 output port to get
+ * tunnel info.
*/
enum ovs_userspace_attr {
OVS_USERSPACE_ATTR_UNSPEC,
OVS_USERSPACE_ATTR_PID, /* u32 Netlink PID to receive upcalls. */
OVS_USERSPACE_ATTR_USERDATA, /* Optional user-specified cookie. */
+ OVS_USERSPACE_ATTR_EGRESS_TUN_PORT, /* Optional, u32 output port
+ * to get tunnel info. */
__OVS_USERSPACE_ATTR_MAX
};
--
cgit v1.2.1
From 05da5898a96c05e32aa9850c9cd89eef29471b13 Mon Sep 17 00:00:00 2001
From: Jarno Rajahalme <jrajahalme@nicira.com>
Date: Thu, 6 Nov 2014 07:03:05 -0800
Subject: openvswitch: Add support for OVS_FLOW_ATTR_PROBE.
This new flag is useful for suppressing error logging while probing
for datapath features using flow commands. For backwards
compatibility reasons the commands are executed normally, but error
logging is suppressed.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
---
include/uapi/linux/openvswitch.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index cf8185661e52..3a6dcaa359b7 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -457,6 +457,8 @@ enum ovs_flow_attr {
OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */
OVS_FLOW_ATTR_MASK, /* Sequence of OVS_KEY_ATTR_* attributes. */
+ OVS_FLOW_ATTR_PROBE, /* Flow operation is a feature probe, error
+ * logging should be suppressed. */
__OVS_FLOW_ATTR_MAX
};
--
cgit v1.2.1
From 6bab3596bbede980c067eaeaf6a470c262888dac Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 20 Oct 2014 16:01:33 +0200
Subject: quota: Remove const from function declarations
We don't use const through VFS too much so just remove it from quota
function declarations.
Signed-off-by: Jan Kara <jack@suse.cz>
---
include/linux/quotaops.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 1d3eee594cd6..f23538a6e411 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -64,10 +64,10 @@ void dquot_destroy(struct dquot *dquot);
int __dquot_alloc_space(struct inode *inode, qsize_t number, int flags);
void __dquot_free_space(struct inode *inode, qsize_t number, int flags);
-int dquot_alloc_inode(const struct inode *inode);
+int dquot_alloc_inode(struct inode *inode);
int dquot_claim_space_nodirty(struct inode *inode, qsize_t number);
-void dquot_free_inode(const struct inode *inode);
+void dquot_free_inode(struct inode *inode);
void dquot_reclaim_space_nodirty(struct inode *inode, qsize_t number);
int dquot_disable(struct super_block *sb, int type, unsigned int flags);
@@ -213,12 +213,12 @@ static inline void dquot_drop(struct inode *inode)
{
}
-static inline int dquot_alloc_inode(const struct inode *inode)
+static inline int dquot_alloc_inode(struct inode *inode)
{
return 0;
}
-static inline void dquot_free_inode(const struct inode *inode)
+static inline void dquot_free_inode(struct inode *inode)
{
}
--
cgit v1.2.1
From 2c5f648aa24a7c8f0668d8ce5722d69da5bef739 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 30 Sep 2014 10:43:09 +0200
Subject: quota: Allow each filesystem to specify which quota types it supports
Currently all filesystems supporting VFS quota support user and group
quotas. With introduction of project quotas this is going to change so
make sure filesystem isn't called for quota type it doesn't support by
introduction of a bitmask determining which quota types each filesystem
supports.
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
---
include/linux/fs.h | 1 +
include/linux/quota.h | 5 +++++
2 files changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9ab779e8a63c..cf55a5483d40 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1224,6 +1224,7 @@ struct super_block {
struct backing_dev_info *s_bdi;
struct mtd_info *s_mtd;
struct hlist_node s_instances;
+ unsigned int s_quota_types; /* Bitmask of supported quota types */
struct quota_info s_dquot; /* Diskquota specific options */
struct sb_writers s_writers;
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 80d345a3524c..50978b781a19 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -56,6 +56,11 @@ enum quota_type {
PRJQUOTA = 2, /* element used for project quotas */
};
+/* Masks for quota types when used as a bitmask */
+#define QTYPE_MASK_USR (1 << USRQUOTA)
+#define QTYPE_MASK_GRP (1 << GRPQUOTA)
+#define QTYPE_MASK_PRJ (1 << PRJQUOTA)
+
typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */
typedef long long qsize_t; /* Type in which we store sizes */
--
cgit v1.2.1
From 2d0fa467915ed0c5957c992011b7f142a7dedf8e Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Thu, 25 Sep 2014 16:36:14 +0200
Subject: quota: Use function to provide i_dquot pointers
i_dquot array is used by relatively few filesystems (ext?, ocfs2, jfs,
reiserfs) so it is beneficial to move this array to fs-private part of
the inode. We cannot just pass quota pointers from filesystems to quota
functions because during quotaon and quotaoff we have to traverse list
of all inodes and manipulate i_dquot pointers for each inode. So we
provide a function which generic quota code can use to get pointer to
the i_dquot array from the filesystem.
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
---
include/linux/fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index cf55a5483d40..8c093ad49522 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1591,6 +1591,7 @@ struct super_operations {
#ifdef CONFIG_QUOTA
ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
+ struct dquot **(*get_dquots)(struct inode *);
#endif
int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t);
long (*nr_cached_objects)(struct super_block *, int);
--
cgit v1.2.1
From 75cbe701a4251fcd8b846d52ae42f88c9a8e5e93 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 29 Sep 2014 15:10:26 +0200
Subject: vfs: Remove i_dquot field from inode
All filesystems using VFS quotas are now converted to use their private
i_dquot fields. Remove the i_dquot field from generic inode structure.
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
---
include/linux/fs.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 8c093ad49522..6eb5337688bd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -606,9 +606,6 @@ struct inode {
const struct file_operations *i_fop; /* former ->i_op->default_file_ops */
struct file_lock *i_flock;
struct address_space i_data;
-#ifdef CONFIG_QUOTA
- struct dquot *i_dquot[MAXQUOTAS];
-#endif
struct list_head i_devices;
union {
struct pipe_inode_info *i_pipe;
--
cgit v1.2.1
From f8d7552e945d38bd8d2e9c23aebf98042ce12302 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Fri, 7 Nov 2014 14:31:35 +0200
Subject: cfg80211: add channel switch started notification
Add a new NL80211_CH_SWITCH_STARTED_NOTIFY message that can be sent to
the userspace when a channel switch process has started. This allows
userspace to take action, for instance, by requesting other interfaces
to switch channel as necessary.
This patch introduces a function that allows the drivers to send this
notification. It should be used when the driver starts processing a
channel switch initiated by a remote device (eg. when a STA receives a
CSA from the AP) and when it successfully starts a userspace-triggered
channel switch (eg. when hostapd triggers a channel swith in the AP).
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 14 ++++++++++++++
include/uapi/linux/nl80211.h | 11 +++++++++++
2 files changed, 25 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 5c3acd07acd9..220d5f5f1aca 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4719,6 +4719,20 @@ bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
void cfg80211_ch_switch_notify(struct net_device *dev,
struct cfg80211_chan_def *chandef);
+/*
+ * cfg80211_ch_switch_started_notify - notify channel switch start
+ * @dev: the device on which the channel switch started
+ * @chandef: the future channel definition
+ * @count: the number of TBTTs until the channel switch happens
+ *
+ * Inform the userspace about the channel switch that has just
+ * started, so that it can take appropriate actions (eg. starting
+ * channel switch on other vifs), if necessary.
+ */
+void cfg80211_ch_switch_started_notify(struct net_device *dev,
+ struct cfg80211_chan_def *chandef,
+ u8 count);
+
/**
* ieee80211_operating_class_to_band - convert operating class to band
*
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 9b3025e4377a..354163433352 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -645,6 +645,15 @@
* %NL80211_ATTR_IFINDEX is now on %NL80211_ATTR_WIPHY_FREQ and the
* attributes determining channel width.
*
+ * @NL80211_CMD_CH_SWITCH_STARTED_NOTIFY: Notify that a channel switch
+ * has been started on an interface, regardless of the initiator
+ * (ie. whether it was requested from a remote device or
+ * initiated on our own). It indicates that
+ * %NL80211_ATTR_IFINDEX will be on %NL80211_ATTR_WIPHY_FREQ
+ * after %NL80211_ATTR_CH_SWITCH_COUNT TBTT's. The userspace may
+ * decide to react to this indication by requesting other
+ * interfaces to change channel as well.
+ *
* @NL80211_CMD_START_P2P_DEVICE: Start the given P2P Device, identified by
* its %NL80211_ATTR_WDEV identifier. It must have been created with
* %NL80211_CMD_NEW_INTERFACE previously. After it has been started, the
@@ -930,6 +939,8 @@ enum nl80211_commands {
NL80211_CMD_JOIN_OCB,
NL80211_CMD_LEAVE_OCB,
+ NL80211_CMD_CH_SWITCH_STARTED_NOTIFY,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
--
cgit v1.2.1
From d04b5ac9e70b2056a8a12f768f4b46773576025e Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Fri, 7 Nov 2014 14:31:37 +0200
Subject: cfg80211/mac80211: allow any interface to send channel switch
notifications
For multi-vif channel switches, we want to send
NL80211_CMD_CH_SWITCH_NOTIFY to the userspace to let it decide whether
other interfaces need to be moved as well. This is needed when we
want a P2P GO interface to follow the channel of a station, for
example.
Modify the code so that all interfaces can send CSA notifications.
Additionally, send notifications for STA CSA as well.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/uapi/linux/nl80211.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 354163433352..a552736c3e59 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -643,7 +643,9 @@
* @NL80211_CMD_CH_SWITCH_NOTIFY: An AP or GO may decide to switch channels
* independently of the userspace SME, send this event indicating
* %NL80211_ATTR_IFINDEX is now on %NL80211_ATTR_WIPHY_FREQ and the
- * attributes determining channel width.
+ * attributes determining channel width. This indication may also be
+ * sent when a remotely-initiated switch (e.g., when a STA receives a CSA
+ * from the remote AP) is completed;
*
* @NL80211_CMD_CH_SWITCH_STARTED_NOTIFY: Notify that a channel switch
* has been started on an interface, regardless of the initiator
--
cgit v1.2.1
From 1f7bba79af57ceecf25c2b7d3e6a484efefe340f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 6 Nov 2014 22:56:36 +0100
Subject: mac80211: add back support for radiotap vendor namespace data
Radiotap vendor namespace data might still be useful, but we
reverted it because it used too much space in the RX status.
Put it back, but address the space problem by using a single
bit only and putting everything else into the skb->data.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5f203a6a5e7e..83232aa2f077 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -882,6 +882,9 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
* subframes share the same sequence number. Reported subframes can be
* either regular MSDU or singly A-MSDUs. Subframes must not be
* interleaved with other frames.
+ * @RX_FLAG_RADIOTAP_VENDOR_DATA: This frame contains vendor-specific
+ * radiotap data in the skb->data (before the frame) as described by
+ * the &struct ieee80211_vendor_radiotap.
*/
enum mac80211_rx_flags {
RX_FLAG_MMIC_ERROR = BIT(0),
@@ -911,6 +914,7 @@ enum mac80211_rx_flags {
RX_FLAG_10MHZ = BIT(28),
RX_FLAG_5MHZ = BIT(29),
RX_FLAG_AMSDU_MORE = BIT(30),
+ RX_FLAG_RADIOTAP_VENDOR_DATA = BIT(31),
};
#define RX_FLAG_STBC_SHIFT 26
@@ -981,6 +985,39 @@ struct ieee80211_rx_status {
u8 ampdu_delimiter_crc;
};
+/**
+ * struct ieee80211_vendor_radiotap - vendor radiotap data information
+ * @present: presence bitmap for this vendor namespace
+ * (this could be extended in the future if any vendor needs more
+ * bits, the radiotap spec does allow for that)
+ * @align: radiotap vendor namespace alignment. This defines the needed
+ * alignment for the @data field below, not for the vendor namespace
+ * description itself (which has a fixed 2-byte alignment)
+ * Must be a power of two, and be set to at least 1!
+ * @oui: radiotap vendor namespace OUI
+ * @subns: radiotap vendor sub namespace
+ * @len: radiotap vendor sub namespace skip length, if alignment is done
+ * then that's added to this, i.e. this is only the length of the
+ * @data field.
+ * @pad: number of bytes of padding after the @data, this exists so that
+ * the skb data alignment can be preserved even if the data has odd
+ * length
+ * @data: the actual vendor namespace data
+ *
+ * This struct, including the vendor data, goes into the skb->data before
+ * the 802.11 header. It's split up in mac80211 using the align/oui/subns
+ * data.
+ */
+struct ieee80211_vendor_radiotap {
+ u32 present;
+ u8 align;
+ u8 oui[3];
+ u8 subns;
+ u8 pad;
+ u16 len;
+ u8 data[];
+} __packed;
+
/**
* enum ieee80211_conf_flags - configuration flags
*
--
cgit v1.2.1
From a6d4a534e15f0e1b13b518c31219f9fb7166412a Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Thu, 23 Oct 2014 09:37:33 +0300
Subject: cfg80211: introduce regulatory flags controlling bw
Allow setting bandwidth related regulatory flags. These flags are mapped
to the corresponding channel flags in the specified range.
Make sure the new flags are consulted when calculating the maximum
bandwidth allowed by a regulatory-rule.
Also allow propagating the GO_CONCURRENT modifier from a reg-rule to a
channel.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/uapi/linux/nl80211.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index a552736c3e59..442369f69b4f 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2665,6 +2665,11 @@ enum nl80211_sched_scan_match_attr {
* @NL80211_RRF_AUTO_BW: maximum available bandwidth should be calculated
* base on contiguous rules and wider channels will be allowed to cross
* multiple contiguous/overlapping frequency ranges.
+ * @NL80211_RRF_GO_CONCURRENT: See &NL80211_FREQUENCY_ATTR_GO_CONCURRENT
+ * @NL80211_RRF_NO_HT40MINUS: channels can't be used in HT40- operation
+ * @NL80211_RRF_NO_HT40PLUS: channels can't be used in HT40+ operation
+ * @NL80211_RRF_NO_80MHZ: 80MHz operation not allowed
+ * @NL80211_RRF_NO_160MHZ: 160MHz operation not allowed
*/
enum nl80211_reg_rule_flags {
NL80211_RRF_NO_OFDM = 1<<0,
@@ -2677,11 +2682,18 @@ enum nl80211_reg_rule_flags {
NL80211_RRF_NO_IR = 1<<7,
__NL80211_RRF_NO_IBSS = 1<<8,
NL80211_RRF_AUTO_BW = 1<<11,
+ NL80211_RRF_GO_CONCURRENT = 1<<12,
+ NL80211_RRF_NO_HT40MINUS = 1<<13,
+ NL80211_RRF_NO_HT40PLUS = 1<<14,
+ NL80211_RRF_NO_80MHZ = 1<<15,
+ NL80211_RRF_NO_160MHZ = 1<<16,
};
#define NL80211_RRF_PASSIVE_SCAN NL80211_RRF_NO_IR
#define NL80211_RRF_NO_IBSS NL80211_RRF_NO_IR
#define NL80211_RRF_NO_IR NL80211_RRF_NO_IR
+#define NL80211_RRF_NO_HT40 (NL80211_RRF_NO_HT40MINUS |\
+ NL80211_RRF_NO_HT40PLUS)
/* For backport compatibility with older userspace */
#define NL80211_RRF_NO_IR_ALL (NL80211_RRF_NO_IR | __NL80211_RRF_NO_IBSS)
--
cgit v1.2.1
From cc9571e85808dfc121e4fda5c75c9a3c3c75e514 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 21 Oct 2014 11:22:35 +0200
Subject: mmc: sdhci-pxav3: Move private driver data to driver source
struct sdhci_pxa is only used in sdhci_pxa driver itself, so move it
there.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/platform_data/pxa_sdhci.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/pxa_sdhci.h b/include/linux/platform_data/pxa_sdhci.h
index 27d3156d093a..9e20c2fb4ffd 100644
--- a/include/linux/platform_data/pxa_sdhci.h
+++ b/include/linux/platform_data/pxa_sdhci.h
@@ -55,9 +55,4 @@ struct sdhci_pxa_platdata {
unsigned int quirks2;
unsigned int pm_caps;
};
-
-struct sdhci_pxa {
- u8 clk_enable;
- u8 power_mode;
-};
#endif /* _PXA_SDHCI_H_ */
--
cgit v1.2.1
From 433b7b1210a4ece4f2b4f1b04f31a2f0928c8aa8 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 6 Oct 2014 11:00:15 +0200
Subject: mmc: core: Don't export the to_sdio_driver macro
The macro is only used by the mmc core, so let's move it in there.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdio_func.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
index 50f0bc952328..aab032a6ae61 100644
--- a/include/linux/mmc/sdio_func.h
+++ b/include/linux/mmc/sdio_func.h
@@ -84,8 +84,6 @@ struct sdio_driver {
struct device_driver drv;
};
-#define to_sdio_driver(d) container_of(d, struct sdio_driver, drv)
-
/**
* SDIO_DEVICE - macro used to describe a specific SDIO device
* @vend: the 16 bit manufacturer code
--
cgit v1.2.1
From 6685ac62b2f08fcff77dc35c6b8bff1b74aaa408 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 6 Oct 2014 13:51:40 +0200
Subject: mmc: core: Convert mmc_driver to device_driver
The struct mmc_driver adds an extra layer on top of the struct
device_driver. That would be fine, if there were a good reason, but
that's not the case.
Let's simplify code by converting to the common struct device_driver
instead and thus also removing superfluous overhead.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/card.h | 16 ++--------------
1 file changed, 2 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index b0692d28f8e6..cf54afe5d863 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -513,20 +513,8 @@ static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
-/*
- * MMC device driver (e.g., Flash card, I/O card...)
- */
-struct mmc_driver {
- struct device_driver drv;
- int (*probe)(struct mmc_card *);
- void (*remove)(struct mmc_card *);
- int (*suspend)(struct mmc_card *);
- int (*resume)(struct mmc_card *);
- void (*shutdown)(struct mmc_card *);
-};
-
-extern int mmc_register_driver(struct mmc_driver *);
-extern void mmc_unregister_driver(struct mmc_driver *);
+extern int mmc_register_driver(struct device_driver *);
+extern void mmc_unregister_driver(struct device_driver *);
extern void mmc_fixup_device(struct mmc_card *card,
const struct mmc_fixup *table);
--
cgit v1.2.1
From fc95e30ba33b9f4faa8630d0762af2548031dc00 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 6 Oct 2014 14:34:09 +0200
Subject: mmc: block: Use dev_set|get_drvdata()
In most of the cases mmc_get|set_drvdata() didn't simplify code, which
should be the primary reason for such macros.
Let's remove them and convert to the common device_driver macros,
dev_set|get_drvdata() instead.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/card.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index cf54afe5d863..64f413676410 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -510,8 +510,6 @@ static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
#define mmc_dev_to_card(d) container_of(d, struct mmc_card, dev)
#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
-#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
-#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
extern int mmc_register_driver(struct device_driver *);
extern void mmc_unregister_driver(struct device_driver *);
--
cgit v1.2.1
From 390e316c606de2f839389698f4531004cfe1bafd Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 6 Oct 2014 14:39:03 +0200
Subject: mmc: core: Remove unused mmc_list_to_card() macro
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/card.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 64f413676410..0ba8f251f8ef 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -509,8 +509,6 @@ static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
#define mmc_dev_to_card(d) container_of(d, struct mmc_card, dev)
-#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
-
extern int mmc_register_driver(struct device_driver *);
extern void mmc_unregister_driver(struct device_driver *);
--
cgit v1.2.1
From 0f762426769a517d5b278e4e5d579fcea6801734 Mon Sep 17 00:00:00 2001
From: Gwendal Grignou <gwendal@chromium.org>
Date: Thu, 16 Oct 2014 11:27:16 -0700
Subject: mmc: core: Report firmware version for eMMC 5.0 devices.
For eMMC 5.0 compliant device, firmware version is stored in ext_csd.
Report firmware as a 64bit hexa decimal. Vendor can use hexa or ascii
string to report firmware version.
Also add FFU related EXT_CSD register and note if the device is FFU capable.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/card.h | 3 +++
include/linux/mmc/mmc.h | 3 +++
2 files changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 0ba8f251f8ef..4d69c00497bd 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -88,6 +88,9 @@ struct mmc_ext_csd {
unsigned int data_tag_unit_size; /* DATA TAG UNIT size */
unsigned int boot_ro_lock; /* ro lock support */
bool boot_ro_lockable;
+ bool ffu_capable; /* Firmware upgrade support */
+#define MMC_FIRMWARE_LEN 8
+ u8 fwrev[MMC_FIRMWARE_LEN]; /* FW version */
u8 raw_exception_status; /* 54 */
u8 raw_partition_support; /* 160 */
u8 raw_rpmb_size_mult; /* 168 */
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 1cd00b3a75b9..49ad7a943638 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -296,6 +296,7 @@ struct _mmc_csd {
#define EXT_CSD_SANITIZE_START 165 /* W */
#define EXT_CSD_WR_REL_PARAM 166 /* RO */
#define EXT_CSD_RPMB_MULT 168 /* RO */
+#define EXT_CSD_FW_CONFIG 169 /* R/W */
#define EXT_CSD_BOOT_WP 173 /* R/W */
#define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
#define EXT_CSD_PART_CONFIG 179 /* R/W */
@@ -332,6 +333,8 @@ struct _mmc_csd {
#define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */
#define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */
#define EXT_CSD_PWR_CL_DDR_200_360 253 /* RO */
+#define EXT_CSD_FIRMWARE_VERSION 254 /* RO, 8 bytes */
+#define EXT_CSD_SUPPORTED_MODE 493 /* RO */
#define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */
#define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */
#define EXT_CSD_MAX_PACKED_WRITES 500 /* RO */
--
cgit v1.2.1
From 9cbef73cb657ff795c130cccfed251f0ae923abb Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Date: Fri, 17 Oct 2014 10:26:36 +0200
Subject: mmc: atmel-mci: move mach header to platform_data
Move the mach header that can come either from arm/mach-at91 or avr32 to
platform_data to be able to switch the AT91 platforms to multiplatform.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[Ulf: Fixed compile error]
---
include/linux/platform_data/mmc-atmel-mci.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 include/linux/platform_data/mmc-atmel-mci.h
(limited to 'include')
diff --git a/include/linux/platform_data/mmc-atmel-mci.h b/include/linux/platform_data/mmc-atmel-mci.h
new file mode 100644
index 000000000000..399a2d5a14bd
--- /dev/null
+++ b/include/linux/platform_data/mmc-atmel-mci.h
@@ -0,0 +1,22 @@
+#ifndef __MMC_ATMEL_MCI_H
+#define __MMC_ATMEL_MCI_H
+
+#include <linux/platform_data/dma-atmel.h>
+#include <linux/platform_data/dma-dw.h>
+
+/**
+ * struct mci_dma_data - DMA data for MCI interface
+ */
+struct mci_dma_data {
+#ifdef CONFIG_ARM
+ struct at_dma_slave sdata;
+#else
+ struct dw_dma_slave sdata;
+#endif
+};
+
+/* accessor macros */
+#define slave_data_ptr(s) (&(s)->sdata)
+#define find_slave_dev(s) ((s)->sdata.dma_dev)
+
+#endif /* __MMC_ATMEL_MCI_H */
--
cgit v1.2.1
From 6130e7a9c34d01afbd4e7e215846d1f2d70333bb Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Tue, 14 Oct 2014 09:33:09 -0700
Subject: mmc: dw_mmc: Remove old card detect infrastructure
The dw_mmc driver had a bunch of code that ran whenever a card was
ejected and inserted. However, this code was old and crufty and
should be removed. Some evidence that it's really not needed:
1. Is is supposed to be legal to use 'cd-gpio' on dw_mmc instead of
using the built-in card detect mechanism. The 'cd-gpio' code
doesn't run any of the crufty old code but yet still works.
2. While looking at this, I realized that my old change (369ac86 mmc:
dw_mmc: don't queue up a card detect at slot startup) actually
castrated the old code a little bit already and nobody noticed.
Specifically "last_detect_state" was left as 0 at bootup. That
means that on the first card removal none of the crufty code ran.
3. I can run "while true; do dd if=/dev/mmcblk1 of=/dev/null; done"
while ejecting and inserting an SD Card and the world doesn't
explode.
If some of the crufty old code is actually needed, we should justify
it and also put it in some place where it will be run even with
"cd-gpio".
Note that in my case I'm using the "cd-gpio" mechanism but for various
reasons the hardware triggers a dw_mmc "card detect" at bootup. That
was actually causing a real bug. The card detect workqueue was
running while the system was trying to enumerate the card. The
"present != slot->last_detect_state" triggered and we were doing all
kinds of crazy stuff and messing up enumeration. The new mechanism of
just asking the core to check the card is much safer and then the
bogus interrupt doesn't hurt.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: alim.akhtar <alim.akhtar@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/dw_mmc.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 001366927cf4..69d08144cfad 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -135,7 +135,6 @@ struct dw_mci {
struct mmc_command stop_abort;
unsigned int prev_blksz;
unsigned char timing;
- struct workqueue_struct *card_workqueue;
/* DMA interface members*/
int use_dma;
@@ -154,7 +153,6 @@ struct dw_mci {
u32 stop_cmdr;
u32 dir_status;
struct tasklet_struct tasklet;
- struct work_struct card_work;
unsigned long pending_events;
unsigned long completed_events;
enum dw_mci_state state;
--
cgit v1.2.1
From e21aa519ee3667d0fabda5d806cc68826e9899e0 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 17 Oct 2014 11:32:32 +0200
Subject: mmc: core: Export mmc_get_ext_csd()
Callers of mmc_send_ext_csd() will be able to decrease code duplication
by using mmc_get_ext_csd() instead. Let's make it available.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index f206e29f94d7..0a77d3567c27 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -155,6 +155,7 @@ extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool,
bool, bool);
extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
extern int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd);
+extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
#define MMC_ERASE_ARG 0x00000000
#define MMC_SECURE_ERASE_ARG 0x80000000
--
cgit v1.2.1
From 2fc91e8b0e1cd89094677d1c9dfba1b26979e48b Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 17 Oct 2014 11:54:22 +0200
Subject: mmc: core: Remove the redundant mmc_send_ext_csd() API
Previous patches has replaced the calls to mmc_send_ext_csd() into
mmc_get_ext_csd(), thus mmc_send_ext_csd() has become redundant. Let's
remove it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/core.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 0a77d3567c27..b11e43c10631 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -154,7 +154,6 @@ extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool,
bool, bool);
extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
-extern int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd);
extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
#define MMC_ERASE_ARG 0x00000000
--
cgit v1.2.1
From 76d5556428fbbdf411504895b516272cad27127d Mon Sep 17 00:00:00 2001
From: Timo Kokkonen <timo.kokkonen@offcode.fi>
Date: Mon, 3 Nov 2014 13:12:59 +0200
Subject: mmc: host: atmel-mci: Add support for non-removable slots
Add support for non-removable slots which have no card detection GPIO
and which should not be polled for a card change.
Signed-off-by: Timo Kokkonen <timo.kokkonen@offcode.fi>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/atmel-mci.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index 91b77f8d495d..9177947bf032 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -11,6 +11,7 @@
* @detect_pin: GPIO pin wired to the card detect switch
* @wp_pin: GPIO pin wired to the write protect sensor
* @detect_is_active_high: The state of the detect pin when it is active
+ * @non_removable: The slot is not removable, only detect once
*
* If a given slot is not present on the board, @bus_width should be
* set to 0. The other fields are ignored in this case.
@@ -26,6 +27,7 @@ struct mci_slot_pdata {
int detect_pin;
int wp_pin;
bool detect_is_active_high;
+ bool non_removable;
};
/**
--
cgit v1.2.1
From 4efaa6fbe1fd5e86ab2fee4cdcfc6873dab60716 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 4 Nov 2014 12:42:39 +0200
Subject: mmc: sdhci: Rename adma_desc to adma_table
In preparation for 64-bit ADMA, rename adma_desc to
adma_table. That is because members will be added
for descriptor size and table size, so using adma_desc
(which is the table) is confusing.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdhci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index dba793e3a331..76e04324cc33 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -155,7 +155,7 @@ struct sdhci_host {
int sg_count; /* Mapped sg entries */
- u8 *adma_desc; /* ADMA descriptor table */
+ u8 *adma_table; /* ADMA descriptor table */
u8 *align_buffer; /* Bounce buffer */
dma_addr_t adma_addr; /* Mapped ADMA descr. table */
--
cgit v1.2.1
From 1c3d5f6ddcb915c0e702cf513bad4a3b1583f48f Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 4 Nov 2014 12:42:41 +0200
Subject: mmc: sdhci: Use 'void *' for not 'u8 *' for ADMA data
It is kernel-style to use 'void *' for anonymous data.
This is being applied to the ADMA bounce buffer which
contains unaligned bytes, and to the ADMA descriptor
table which will contain 32-bit ADMA descriptors
or 64-bit ADMA descriptors when support is added.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdhci.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 76e04324cc33..933dbbb50742 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -155,8 +155,8 @@ struct sdhci_host {
int sg_count; /* Mapped sg entries */
- u8 *adma_table; /* ADMA descriptor table */
- u8 *align_buffer; /* Bounce buffer */
+ void *adma_table; /* ADMA descriptor table */
+ void *align_buffer; /* Bounce buffer */
dma_addr_t adma_addr; /* Mapped ADMA descr. table */
dma_addr_t align_addr; /* Mapped bounce buffer */
--
cgit v1.2.1
From 76fe379acaeb857f91705f3bd5c6f69ec13872a9 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 4 Nov 2014 12:42:42 +0200
Subject: mmc: sdhci: Parameterize ADMA sizes and alignment
In preparation for 64-bit ADMA, parameterize ADMA sizes
and alignment. 64-bit ADMA has a larger descriptor
because it contains a 64-bit address instead of a 32-bit
address. Also data must be 8-byte aligned instead
of 4-byte aligned. Consequently, sdhci_host members
are added for descriptor, table, and buffer sizes
and alignment.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdhci.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 933dbbb50742..2a72e9510833 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -158,9 +158,16 @@ struct sdhci_host {
void *adma_table; /* ADMA descriptor table */
void *align_buffer; /* Bounce buffer */
+ size_t adma_table_sz; /* ADMA descriptor table size */
+ size_t align_buffer_sz; /* Bounce buffer size */
+
dma_addr_t adma_addr; /* Mapped ADMA descr. table */
dma_addr_t align_addr; /* Mapped bounce buffer */
+ unsigned int desc_sz; /* ADMA descriptor size */
+ unsigned int align_sz; /* ADMA alignment */
+ unsigned int align_mask; /* ADMA alignment mask */
+
struct tasklet_struct finish_tasklet; /* Tasklet structures */
struct timer_list timer; /* Timer for timeouts */
--
cgit v1.2.1
From e57a5f61eae7e145aeeda18ccb22576822f534bf Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 4 Nov 2014 12:42:46 +0200
Subject: mmc: sdhci: Add 64-bit ADMA support
Add 64-bit ADMA support including:
- add 64-bit ADMA descriptor
- add SDHCI_USE_64_BIT_DMA flag
- set upper 32-bits of DMA addresses
- ability to select 64-bit ADMA
- ability to use 64-bit ADMA sizes and alignment
- display "ADMA 64-bit" when host is added
It is assumed that a 64-bit capable device has set a 64-bit DMA mask
and *must* do 64-bit DMA. A driver has the opportunity to change
that during the first call to ->enable_dma(). Similarly
SDHCI_QUIRK2_BROKEN_64_BIT_DMA must be left to the drivers to
implement.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdhci.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 2a72e9510833..931ac5e05453 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -100,6 +100,8 @@ struct sdhci_host {
#define SDHCI_QUIRK2_BROKEN_DDR50 (1<<7)
/* Stop command (CMD12) can set Transfer Complete when not using MMC_RSP_BUSY */
#define SDHCI_QUIRK2_STOP_WITH_TC (1<<8)
+/* Controller does not support 64-bit DMA */
+#define SDHCI_QUIRK2_BROKEN_64_BIT_DMA (1<<9)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
@@ -130,6 +132,7 @@ struct sdhci_host {
#define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */
#define SDHCI_SDR104_NEEDS_TUNING (1<<10) /* SDR104/HS200 needs tuning */
#define SDHCI_USING_RETUNING_TIMER (1<<11) /* Host is using a retuning timer for the card */
+#define SDHCI_USE_64_BIT_DMA (1<<12) /* Use 64-bit DMA */
unsigned int version; /* SDHCI spec. version */
--
cgit v1.2.1
From 9216efafc52ff99e9351ef60de5fcafc2bc8adb6 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Wed, 1 Oct 2014 15:20:33 +0200
Subject: asm-generic/io.h: Reconcile I/O accessor overrides
Overriding I/O accessors and helpers is currently very inconsistent.
This commit introduces a homogeneous way to override functions by
checking for the existence of a macro with the same of the function.
Architectures can provide their own implementations and communicate this
to the generic header by defining the appropriate macro. Doing this will
also help prevent the implementations from being subsequently
overridden.
While at it, also turn a lot of macros into static inline functions for
better type checking and to provide a canonical signature for overriding
architectures to copy. Also reorder functions by logical groups.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/asm-generic/io.h | 445 +++++++++++++++++++++++++++++++++++++----------
1 file changed, 350 insertions(+), 95 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index b8fdc57a7335..fb62c621acf9 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -12,6 +12,7 @@
#define __ASM_GENERIC_IO_H
#include <asm/page.h> /* I/O is all done through memory accesses */
+#include <linux/string.h> /* for memset() and memcpy() */
#include <linux/types.h>
#ifdef CONFIG_GENERIC_IOMAP
@@ -24,142 +25,154 @@
#define mmiowb() do {} while (0)
#endif
-/*****************************************************************************/
/*
- * readX/writeX() are used to access memory mapped devices. On some
- * architectures the memory mapped IO stuff needs to be accessed
- * differently. On the simple architectures, we just read/write the
- * memory location directly.
+ * __raw_{read,write}{b,w,l,q}() access memory in native endianness.
+ *
+ * On some architectures memory mapped IO needs to be accessed differently.
+ * On the simple architectures, we just read/write the memory location
+ * directly.
*/
+
#ifndef __raw_readb
+#define __raw_readb __raw_readb
static inline u8 __raw_readb(const volatile void __iomem *addr)
{
- return *(const volatile u8 __force *) addr;
+ return *(const volatile u8 __force *)addr;
}
#endif
#ifndef __raw_readw
+#define __raw_readw __raw_readw
static inline u16 __raw_readw(const volatile void __iomem *addr)
{
- return *(const volatile u16 __force *) addr;
+ return *(const volatile u16 __force *)addr;
}
#endif
#ifndef __raw_readl
+#define __raw_readl __raw_readl
static inline u32 __raw_readl(const volatile void __iomem *addr)
{
- return *(const volatile u32 __force *) addr;
+ return *(const volatile u32 __force *)addr;
}
#endif
-#define readb __raw_readb
-
-#define readw readw
-static inline u16 readw(const volatile void __iomem *addr)
-{
- return __le16_to_cpu(__raw_readw(addr));
-}
-
-#define readl readl
-static inline u32 readl(const volatile void __iomem *addr)
+#ifdef CONFIG_64BIT
+#ifndef __raw_readq
+#define __raw_readq __raw_readq
+static inline u64 __raw_readq(const volatile void __iomem *addr)
{
- return __le32_to_cpu(__raw_readl(addr));
+ return *(const volatile u64 __force *)addr;
}
+#endif
+#endif /* CONFIG_64BIT */
#ifndef __raw_writeb
-static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
+#define __raw_writeb __raw_writeb
+static inline void __raw_writeb(u8 value, volatile void __iomem *addr)
{
- *(volatile u8 __force *) addr = b;
+ *(volatile u8 __force *)addr = value;
}
#endif
#ifndef __raw_writew
-static inline void __raw_writew(u16 b, volatile void __iomem *addr)
+#define __raw_writew __raw_writew
+static inline void __raw_writew(u16 value, volatile void __iomem *addr)
{
- *(volatile u16 __force *) addr = b;
+ *(volatile u16 __force *)addr = value;
}
#endif
#ifndef __raw_writel
-static inline void __raw_writel(u32 b, volatile void __iomem *addr)
+#define __raw_writel __raw_writel
+static inline void __raw_writel(u32 value, volatile void __iomem *addr)
{
- *(volatile u32 __force *) addr = b;
+ *(volatile u32 __force *)addr = value;
}
#endif
-#define writeb __raw_writeb
-#define writew(b,addr) __raw_writew(__cpu_to_le16(b),addr)
-#define writel(b,addr) __raw_writel(__cpu_to_le32(b),addr)
-
#ifdef CONFIG_64BIT
-#ifndef __raw_readq
-static inline u64 __raw_readq(const volatile void __iomem *addr)
+#ifndef __raw_writeq
+#define __raw_writeq __raw_writeq
+static inline void __raw_writeq(u64 value, volatile void __iomem *addr)
{
- return *(const volatile u64 __force *) addr;
+ *(volatile u64 __force *)addr = value;
}
#endif
+#endif /* CONFIG_64BIT */
-#define readq readq
-static inline u64 readq(const volatile void __iomem *addr)
-{
- return __le64_to_cpu(__raw_readq(addr));
-}
+/*
+ * {read,write}{b,w,l,q}() access little endian memory and return result in
+ * native endianness.
+ */
-#ifndef __raw_writeq
-static inline void __raw_writeq(u64 b, volatile void __iomem *addr)
+#ifndef readb
+#define readb readb
+static inline u8 readb(const volatile void __iomem *addr)
{
- *(volatile u64 __force *) addr = b;
+ return __raw_readb(addr);
}
#endif
-#define writeq(b, addr) __raw_writeq(__cpu_to_le64(b), addr)
-#endif /* CONFIG_64BIT */
-
-#ifndef PCI_IOBASE
-#define PCI_IOBASE ((void __iomem *) 0)
+#ifndef readw
+#define readw readw
+static inline u16 readw(const volatile void __iomem *addr)
+{
+ return __le16_to_cpu(__raw_readw(addr));
+}
#endif
-/*****************************************************************************/
-/*
- * traditional input/output functions
- */
-
-static inline u8 inb(unsigned long addr)
+#ifndef readl
+#define readl readl
+static inline u32 readl(const volatile void __iomem *addr)
{
- return readb(addr + PCI_IOBASE);
+ return __le32_to_cpu(__raw_readl(addr));
}
+#endif
-static inline u16 inw(unsigned long addr)
+#ifdef CONFIG_64BIT
+#ifndef readq
+#define readq readq
+static inline u64 readq(const volatile void __iomem *addr)
{
- return readw(addr + PCI_IOBASE);
+ return __le64_to_cpu(__raw_readq(addr));
}
+#endif
+#endif /* CONFIG_64BIT */
-static inline u32 inl(unsigned long addr)
+#ifndef writeb
+#define writeb writeb
+static inline void writeb(u8 value, volatile void __iomem *addr)
{
- return readl(addr + PCI_IOBASE);
+ __raw_writeb(value, addr);
}
+#endif
-static inline void outb(u8 b, unsigned long addr)
+#ifndef writew
+#define writew writew
+static inline void writew(u16 value, volatile void __iomem *addr)
{
- writeb(b, addr + PCI_IOBASE);
+ __raw_writew(cpu_to_le16(value), addr);
}
+#endif
-static inline void outw(u16 b, unsigned long addr)
+#ifndef writel
+#define writel writel
+static inline void writel(u32 value, volatile void __iomem *addr)
{
- writew(b, addr + PCI_IOBASE);
+ __raw_writel(__cpu_to_le32(value), addr);
}
+#endif
-static inline void outl(u32 b, unsigned long addr)
+#ifdef CONFIG_64BIT
+#ifndef writeq
+#define writeq writeq
+static inline void writeq(u64 value, volatile void __iomem *addr)
{
- writel(b, addr + PCI_IOBASE);
+ __raw_writeq(__cpu_to_le64(value), addr);
}
-
-#define inb_p(addr) inb(addr)
-#define inw_p(addr) inw(addr)
-#define inl_p(addr) inl(addr)
-#define outb_p(x, addr) outb((x), (addr))
-#define outw_p(x, addr) outw((x), (addr))
-#define outl_p(x, addr) outl((x), (addr))
+#endif
+#endif /* CONFIG_64BIT */
#ifndef insb
static inline void insb(unsigned long addr, void *buffer, int count)
@@ -237,18 +250,6 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
#endif
#ifndef CONFIG_GENERIC_IOMAP
-#define ioread8(addr) readb(addr)
-#define ioread16(addr) readw(addr)
-#define ioread16be(addr) __be16_to_cpu(__raw_readw(addr))
-#define ioread32(addr) readl(addr)
-#define ioread32be(addr) __be32_to_cpu(__raw_readl(addr))
-
-#define iowrite8(v, addr) writeb((v), (addr))
-#define iowrite16(v, addr) writew((v), (addr))
-#define iowrite16be(v, addr) __raw_writew(__cpu_to_be16(v), addr)
-#define iowrite32(v, addr) writel((v), (addr))
-#define iowrite32be(v, addr) __raw_writel(__cpu_to_be32(v), addr)
-
#define ioread8_rep(p, dst, count) \
insb((unsigned long) (p), (dst), (count))
#define ioread16_rep(p, dst, count) \
@@ -264,20 +265,209 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
outsl((unsigned long) (p), (src), (count))
#endif /* CONFIG_GENERIC_IOMAP */
+#ifndef PCI_IOBASE
+#define PCI_IOBASE ((void __iomem *)0)
+#endif
+
#ifndef IO_SPACE_LIMIT
#define IO_SPACE_LIMIT 0xffff
#endif
+/*
+ * {in,out}{b,w,l}() access little endian I/O. {in,out}{b,w,l}_p() can be
+ * implemented on hardware that needs an additional delay for I/O accesses to
+ * take effect.
+ */
+
+#ifndef inb
+#define inb inb
+static inline u8 inb(unsigned long addr)
+{
+ return readb(PCI_IOBASE + addr);
+}
+#endif
+
+#ifndef inw
+#define inw inw
+static inline u16 inw(unsigned long addr)
+{
+ return readw(PCI_IOBASE + addr);
+}
+#endif
+
+#ifndef inl
+#define inl inl
+static inline u32 inl(unsigned long addr)
+{
+ return readl(PCI_IOBASE + addr);
+}
+#endif
+
+#ifndef outb
+#define outb outb
+static inline void outb(u8 value, unsigned long addr)
+{
+ writeb(value, PCI_IOBASE + addr);
+}
+#endif
+
+#ifndef outw
+#define outw outw
+static inline void outw(u16 value, unsigned long addr)
+{
+ writew(value, PCI_IOBASE + addr);
+}
+#endif
+
+#ifndef outl
+#define outl outl
+static inline void outl(u32 value, unsigned long addr)
+{
+ writel(value, PCI_IOBASE + addr);
+}
+#endif
+
+#ifndef inb_p
+#define inb_p inb_p
+static inline u8 inb_p(unsigned long addr)
+{
+ return inb(addr);
+}
+#endif
+
+#ifndef inw_p
+#define inw_p inw_p
+static inline u16 inw_p(unsigned long addr)
+{
+ return inw(addr);
+}
+#endif
+
+#ifndef inl_p
+#define inl_p inl_p
+static inline u32 inl_p(unsigned long addr)
+{
+ return inl(addr);
+}
+#endif
+
+#ifndef outb_p
+#define outb_p outb_p
+static inline void outb_p(u8 value, unsigned long addr)
+{
+ outb(value, addr);
+}
+#endif
+
+#ifndef outw_p
+#define outw_p outw_p
+static inline void outw_p(u16 value, unsigned long addr)
+{
+ outw(value, addr);
+}
+#endif
+
+#ifndef outl_p
+#define outl_p outl_p
+static inline void outl_p(u32 value, unsigned long addr)
+{
+ outl(value, addr);
+}
+#endif
+
+#ifndef CONFIG_GENERIC_IOMAP
+#ifndef ioread8
+#define ioread8 ioread8
+static inline u8 ioread8(const volatile void __iomem *addr)
+{
+ return readb(addr);
+}
+#endif
+
+#ifndef ioread16
+#define ioread16 ioread16
+static inline u16 ioread16(const volatile void __iomem *addr)
+{
+ return readw(addr);
+}
+#endif
+
+#ifndef ioread32
+#define ioread32 ioread32
+static inline u32 ioread32(const volatile void __iomem *addr)
+{
+ return readl(addr);
+}
+#endif
+
+#ifndef iowrite8
+#define iowrite8 iowrite8
+static inline void iowrite8(u8 value, volatile void __iomem *addr)
+{
+ writeb(value, addr);
+}
+#endif
+
+#ifndef iowrite16
+#define iowrite16 iowrite16
+static inline void iowrite16(u16 value, volatile void __iomem *addr)
+{
+ writew(value, addr);
+}
+#endif
+
+#ifndef iowrite32
+#define iowrite32 iowrite32
+static inline void iowrite32(u32 value, volatile void __iomem *addr)
+{
+ writel(value, addr);
+}
+#endif
+
+#ifndef ioread16be
+#define ioread16be ioread16be
+static inline u16 ioread16be(const volatile void __iomem *addr)
+{
+ return __be16_to_cpu(__raw_readw(addr));
+}
+#endif
+
+#ifndef ioread32be
+#define ioread32be ioread32be
+static inline u32 ioread32be(const volatile void __iomem *addr)
+{
+ return __be32_to_cpu(__raw_readl(addr));
+}
+#endif
+
+#ifndef iowrite16be
+#define iowrite16be iowrite16be
+static inline void iowrite16be(u16 value, void volatile __iomem *addr)
+{
+ __raw_writew(__cpu_to_be16(value), addr);
+}
+#endif
+
+#ifndef iowrite32be
+#define iowrite32be iowrite32be
+static inline void iowrite32be(u32 value, volatile void __iomem *addr)
+{
+ __raw_writel(__cpu_to_be32(value), addr);
+}
+#endif
+#endif /* CONFIG_GENERIC_IOMAP */
+
#ifdef __KERNEL__
#include <linux/vmalloc.h>
-#define __io_virt(x) ((void __force *) (x))
+#define __io_virt(x) ((void __force *)(x))
#ifndef CONFIG_GENERIC_IOMAP
struct pci_dev;
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
#ifndef pci_iounmap
+#define pci_iounmap pci_iounmap
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
{
}
@@ -289,11 +479,15 @@ static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
* These are pretty trivial
*/
#ifndef virt_to_phys
+#define virt_to_phys virt_to_phys
static inline unsigned long virt_to_phys(volatile void *address)
{
return __pa((unsigned long)address);
}
+#endif
+#ifndef phys_to_virt
+#define phys_to_virt phys_to_virt
static inline void *phys_to_virt(unsigned long address)
{
return __va(address);
@@ -306,37 +500,65 @@ static inline void *phys_to_virt(unsigned long address)
* This implementation is for the no-MMU case only... if you have an MMU
* you'll need to provide your own definitions.
*/
+
#ifndef CONFIG_MMU
-static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
+#ifndef ioremap
+#define ioremap ioremap
+static inline void __iomem *ioremap(phys_addr_t offset, size_t size)
{
- return (void __iomem*) (unsigned long)offset;
+ return (void __iomem *)(unsigned long)offset;
}
+#endif
-#define __ioremap(offset, size, flags) ioremap(offset, size)
+#ifndef __ioremap
+#define __ioremap __ioremap
+static inline void __iomem *__ioremap(phys_addr_t offset, size_t size,
+ unsigned long flags)
+{
+ return ioremap(offset, size);
+}
+#endif
#ifndef ioremap_nocache
-#define ioremap_nocache ioremap
+#define ioremap_nocache ioremap_nocache
+static inline void __iomem *ioremap_nocache(phys_addr_t offset, size_t size)
+{
+ return ioremap(offset, size);
+}
#endif
#ifndef ioremap_wc
-#define ioremap_wc ioremap_nocache
+#define ioremap_wc ioremap_wc
+static inline void __iomem *ioremap_wc(phys_addr_t offset, size_t size)
+{
+ return ioremap_nocache(offset, size);
+}
#endif
+#ifndef iounmap
+#define iounmap iounmap
static inline void iounmap(void __iomem *addr)
{
}
+#endif
#endif /* CONFIG_MMU */
#ifdef CONFIG_HAS_IOPORT_MAP
#ifndef CONFIG_GENERIC_IOMAP
+#ifndef ioport_map
+#define ioport_map ioport_map
static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
return PCI_IOBASE + (port & IO_SPACE_LIMIT);
}
+#endif
+#ifndef ioport_unmap
+#define ioport_unmap ioport_unmap
static inline void ioport_unmap(void __iomem *p)
{
}
+#endif
#else /* CONFIG_GENERIC_IOMAP */
extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
extern void ioport_unmap(void __iomem *p);
@@ -344,35 +566,68 @@ extern void ioport_unmap(void __iomem *p);
#endif /* CONFIG_HAS_IOPORT_MAP */
#ifndef xlate_dev_kmem_ptr
-#define xlate_dev_kmem_ptr(p) p
+#define xlate_dev_kmem_ptr xlate_dev_kmem_ptr
+static inline void *xlate_dev_kmem_ptr(void *addr)
+{
+ return addr;
+}
#endif
+
#ifndef xlate_dev_mem_ptr
-#define xlate_dev_mem_ptr(p) __va(p)
+#define xlate_dev_mem_ptr xlate_dev_mem_ptr
+static inline void *xlate_dev_mem_ptr(phys_addr_t addr)
+{
+ return __va(addr);
+}
+#endif
+
+#ifndef unxlate_dev_mem_ptr
+#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
+static inline void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
+{
+}
#endif
#ifdef CONFIG_VIRT_TO_BUS
#ifndef virt_to_bus
-static inline unsigned long virt_to_bus(volatile void *address)
+static inline unsigned long virt_to_bus(void *address)
{
- return ((unsigned long) address);
+ return (unsigned long)address;
}
static inline void *bus_to_virt(unsigned long address)
{
- return (void *) address;
+ return (void *)address;
}
#endif
#endif
#ifndef memset_io
-#define memset_io(a, b, c) memset(__io_virt(a), (b), (c))
+#define memset_io memset_io
+static inline void memset_io(volatile void __iomem *addr, int value,
+ size_t size)
+{
+ memset(__io_virt(addr), value, size);
+}
#endif
#ifndef memcpy_fromio
-#define memcpy_fromio(a, b, c) memcpy((a), __io_virt(b), (c))
+#define memcpy_fromio memcpy_fromio
+static inline void memcpy_fromio(void *buffer,
+ const volatile void __iomem *addr,
+ size_t size)
+{
+ memcpy(buffer, __io_virt(addr), size);
+}
#endif
+
#ifndef memcpy_toio
-#define memcpy_toio(a, b, c) memcpy(__io_virt(a), (b), (c))
+#define memcpy_toio memcpy_toio
+static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
+ size_t size)
+{
+ memcpy(__io_virt(addr), buffer, size);
+}
#endif
#endif /* __KERNEL__ */
--
cgit v1.2.1
From 9ab3a7a0d2b417773e8e8a880fc3a69f7fc1f57a Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 4 Jul 2014 13:07:57 +0200
Subject: asm-generic/io.h: Implement generic {read,write}s*()
Currently driver writers need to use io{read,write}{8,16,32}_rep() when
accessing FIFO registers portably. This is bad for two reasons: it is
inconsistent with how other registers are accessed using the standard
{read,write}{b,w,l}() functions, which can lead to confusion. On some
architectures the io{read,write}*() functions also need to perform some
extra checks to determine whether an address is memory-mapped or refers
to I/O space. Drivers which can be expected to never use I/O can safely
use the {read,write}s{b,w,l,q}(), just like they use their non-string
variants and there's no need for these extra checks.
This patch implements generic versions of readsb(), readsw(), readsl(),
readsq(), writesb(), writesw(), writesl() and writesq(). Variants of
these string functions for I/O accesses (ins*() and outs*() as well as
ioread*_rep() and iowrite*_rep()) are now implemented in terms of the
new functions.
Going forward, {read,write}{,s}{b,w,l,q}() should be used consistently
by drivers for devices that will only ever be memory-mapped and hence
don't need to access I/O space, whereas io{read,write}{8,16,32}_rep()
should be used by drivers for devices that can be either memory-mapped
or I/O-mapped.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/asm-generic/io.h | 271 +++++++++++++++++++++++++++++++++++++++++------
1 file changed, 238 insertions(+), 33 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index fb62c621acf9..00483d769d86 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -174,96 +174,137 @@ static inline void writeq(u64 value, volatile void __iomem *addr)
#endif
#endif /* CONFIG_64BIT */
-#ifndef insb
-static inline void insb(unsigned long addr, void *buffer, int count)
+/*
+ * {read,write}s{b,w,l,q}() repeatedly access the same memory address in
+ * native endianness in 8-, 16-, 32- or 64-bit chunks (@count times).
+ */
+#ifndef readsb
+#define readsb readsb
+static inline void readsb(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
{
if (count) {
u8 *buf = buffer;
+
do {
- u8 x = __raw_readb(addr + PCI_IOBASE);
+ u8 x = __raw_readb(addr);
*buf++ = x;
} while (--count);
}
}
#endif
-#ifndef insw
-static inline void insw(unsigned long addr, void *buffer, int count)
+#ifndef readsw
+#define readsw readsw
+static inline void readsw(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
{
if (count) {
u16 *buf = buffer;
+
do {
- u16 x = __raw_readw(addr + PCI_IOBASE);
+ u16 x = __raw_readw(addr);
*buf++ = x;
} while (--count);
}
}
#endif
-#ifndef insl
-static inline void insl(unsigned long addr, void *buffer, int count)
+#ifndef readsl
+#define readsl readsl
+static inline void readsl(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
{
if (count) {
u32 *buf = buffer;
+
do {
- u32 x = __raw_readl(addr + PCI_IOBASE);
+ u32 x = __raw_readl(addr);
*buf++ = x;
} while (--count);
}
}
#endif
-#ifndef outsb
-static inline void outsb(unsigned long addr, const void *buffer, int count)
+#ifdef CONFIG_64BIT
+#ifndef readsq
+#define readsq readsq
+static inline void readsq(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
+{
+ if (count) {
+ u64 *buf = buffer;
+
+ do {
+ u64 x = __raw_readq(addr);
+ *buf++ = x;
+ } while (--count);
+ }
+}
+#endif
+#endif /* CONFIG_64BIT */
+
+#ifndef writesb
+#define writesb writesb
+static inline void writesb(volatile void __iomem *addr, const void *buffer,
+ unsigned int count)
{
if (count) {
const u8 *buf = buffer;
+
do {
- __raw_writeb(*buf++, addr + PCI_IOBASE);
+ __raw_writeb(*buf++, addr);
} while (--count);
}
}
#endif
-#ifndef outsw
-static inline void outsw(unsigned long addr, const void *buffer, int count)
+#ifndef writesw
+#define writesw writesw
+static inline void writesw(volatile void __iomem *addr, const void *buffer,
+ unsigned int count)
{
if (count) {
const u16 *buf = buffer;
+
do {
- __raw_writew(*buf++, addr + PCI_IOBASE);
+ __raw_writew(*buf++, addr);
} while (--count);
}
}
#endif
-#ifndef outsl
-static inline void outsl(unsigned long addr, const void *buffer, int count)
+#ifndef writesl
+#define writesl writesl
+static inline void writesl(volatile void __iomem *addr, const void *buffer,
+ unsigned int count)
{
if (count) {
const u32 *buf = buffer;
+
do {
- __raw_writel(*buf++, addr + PCI_IOBASE);
+ __raw_writel(*buf++, addr);
} while (--count);
}
}
#endif
-#ifndef CONFIG_GENERIC_IOMAP
-#define ioread8_rep(p, dst, count) \
- insb((unsigned long) (p), (dst), (count))
-#define ioread16_rep(p, dst, count) \
- insw((unsigned long) (p), (dst), (count))
-#define ioread32_rep(p, dst, count) \
- insl((unsigned long) (p), (dst), (count))
-
-#define iowrite8_rep(p, src, count) \
- outsb((unsigned long) (p), (src), (count))
-#define iowrite16_rep(p, src, count) \
- outsw((unsigned long) (p), (src), (count))
-#define iowrite32_rep(p, src, count) \
- outsl((unsigned long) (p), (src), (count))
-#endif /* CONFIG_GENERIC_IOMAP */
+#ifdef CONFIG_64BIT
+#ifndef writesq
+#define writesq writesq
+static inline void writesq(volatile void __iomem *addr, const void *buffer,
+ unsigned int count)
+{
+ if (count) {
+ const u64 *buf = buffer;
+
+ do {
+ __raw_writeq(*buf++, addr);
+ } while (--count);
+ }
+}
+#endif
+#endif /* CONFIG_64BIT */
#ifndef PCI_IOBASE
#define PCI_IOBASE ((void __iomem *)0)
@@ -375,6 +416,113 @@ static inline void outl_p(u32 value, unsigned long addr)
}
#endif
+/*
+ * {in,out}s{b,w,l}{,_p}() are variants of the above that repeatedly access a
+ * single I/O port multiple times.
+ */
+
+#ifndef insb
+#define insb insb
+static inline void insb(unsigned long addr, void *buffer, unsigned int count)
+{
+ readsb(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insw
+#define insw insw
+static inline void insw(unsigned long addr, void *buffer, unsigned int count)
+{
+ readsw(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insl
+#define insl insl
+static inline void insl(unsigned long addr, void *buffer, unsigned int count)
+{
+ readsl(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsb
+#define outsb outsb
+static inline void outsb(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ writesb(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsw
+#define outsw outsw
+static inline void outsw(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ writesw(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef outsl
+#define outsl outsl
+static inline void outsl(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ writesl(PCI_IOBASE + addr, buffer, count);
+}
+#endif
+
+#ifndef insb_p
+#define insb_p insb_p
+static inline void insb_p(unsigned long addr, void *buffer, unsigned int count)
+{
+ insb(addr, buffer, count);
+}
+#endif
+
+#ifndef insw_p
+#define insw_p insw_p
+static inline void insw_p(unsigned long addr, void *buffer, unsigned int count)
+{
+ insw(addr, buffer, count);
+}
+#endif
+
+#ifndef insl_p
+#define insl_p insl_p
+static inline void insl_p(unsigned long addr, void *buffer, unsigned int count)
+{
+ insl(addr, buffer, count);
+}
+#endif
+
+#ifndef outsb_p
+#define outsb_p outsb_p
+static inline void outsb_p(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ outsb(addr, buffer, count);
+}
+#endif
+
+#ifndef outsw_p
+#define outsw_p outsw_p
+static inline void outsw_p(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ outsw(addr, buffer, count);
+}
+#endif
+
+#ifndef outsl_p
+#define outsl_p outsl_p
+static inline void outsl_p(unsigned long addr, const void *buffer,
+ unsigned int count)
+{
+ outsl(addr, buffer, count);
+}
+#endif
+
#ifndef CONFIG_GENERIC_IOMAP
#ifndef ioread8
#define ioread8 ioread8
@@ -455,6 +603,63 @@ static inline void iowrite32be(u32 value, volatile void __iomem *addr)
__raw_writel(__cpu_to_be32(value), addr);
}
#endif
+
+#ifndef ioread8_rep
+#define ioread8_rep ioread8_rep
+static inline void ioread8_rep(const volatile void __iomem *addr, void *buffer,
+ unsigned int count)
+{
+ readsb(addr, buffer, count);
+}
+#endif
+
+#ifndef ioread16_rep
+#define ioread16_rep ioread16_rep
+static inline void ioread16_rep(const volatile void __iomem *addr,
+ void *buffer, unsigned int count)
+{
+ readsw(addr, buffer, count);
+}
+#endif
+
+#ifndef ioread32_rep
+#define ioread32_rep ioread32_rep
+static inline void ioread32_rep(const volatile void __iomem *addr,
+ void *buffer, unsigned int count)
+{
+ readsl(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite8_rep
+#define iowrite8_rep iowrite8_rep
+static inline void iowrite8_rep(volatile void __iomem *addr,
+ const void *buffer,
+ unsigned int count)
+{
+ writesb(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite16_rep
+#define iowrite16_rep iowrite16_rep
+static inline void iowrite16_rep(volatile void __iomem *addr,
+ const void *buffer,
+ unsigned int count)
+{
+ writesw(addr, buffer, count);
+}
+#endif
+
+#ifndef iowrite32_rep
+#define iowrite32_rep iowrite32_rep
+static inline void iowrite32_rep(volatile void __iomem *addr,
+ const void *buffer,
+ unsigned int count)
+{
+ writesl(addr, buffer, count);
+}
+#endif
#endif /* CONFIG_GENERIC_IOMAP */
#ifdef __KERNEL__
--
cgit v1.2.1
From c0acb8144bd6d8d88aee1dab33364b7353e9a903 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 10 Oct 2014 12:48:35 +0200
Subject: mfd: max77693: Fix always masked MUIC interrupts
All interrupts coming from MUIC were ignored because interrupt source
register was masked.
The Maxim 77693 has a "interrupt source" - a separate register and interrupts
which give information about PMIC block triggering the individual
interrupt (charger, topsys, MUIC, flash LED).
By default bootloader could initialize this register to "mask all"
value. In such case (observed on Trats2 board) MUIC interrupts won't be
generated regardless of their mask status. Regmap irq chip was unmasking
individual MUIC interrupts but the source was masked
Before introducing regmap irq chip this interrupt source was unmasked,
read and acked. Reading and acking is not necessary but unmasking is.
Fixes: 342d669c1ee4 ("mfd: max77693: Handle IRQs using regmap")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/max77693-private.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
index fc17d56581b2..582e67f34054 100644
--- a/include/linux/mfd/max77693-private.h
+++ b/include/linux/mfd/max77693-private.h
@@ -330,6 +330,13 @@ enum max77693_irq_source {
MAX77693_IRQ_GROUP_NR,
};
+#define SRC_IRQ_CHARGER BIT(0)
+#define SRC_IRQ_TOP BIT(1)
+#define SRC_IRQ_FLASH BIT(2)
+#define SRC_IRQ_MUIC BIT(3)
+#define SRC_IRQ_ALL (SRC_IRQ_CHARGER | SRC_IRQ_TOP \
+ | SRC_IRQ_FLASH | SRC_IRQ_MUIC)
+
#define LED_IRQ_FLED2_OPEN BIT(0)
#define LED_IRQ_FLED2_SHORT BIT(1)
#define LED_IRQ_FLED1_OPEN BIT(2)
--
cgit v1.2.1
From 179e20b8df97e0c7541a1bae30cad53ecc7a5e86 Mon Sep 17 00:00:00 2001
From: Andreas Gruenbacher <agruen@linbit.com>
Date: Mon, 10 Nov 2014 17:21:09 +0100
Subject: drbd: Minor cleanups
. Update comments
. drbd_set_{in,out_of}_sync(): Remove unused parameters
. Move common code into adm_del_resource()
. Redefine ERR_MINOR_EXISTS -> ERR_MINOR_OR_VOLUME_EXISTS
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/drbd.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index debb70d40547..8723f2a99e15 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -172,7 +172,7 @@ enum drbd_ret_code {
ERR_RES_NOT_KNOWN = 158,
ERR_RES_IN_USE = 159,
ERR_MINOR_CONFIGURED = 160,
- ERR_MINOR_EXISTS = 161,
+ ERR_MINOR_OR_VOLUME_EXISTS = 161,
ERR_INVALID_REQUEST = 162,
ERR_NEED_APV_100 = 163,
ERR_NEED_ALLOW_TWO_PRI = 164,
--
cgit v1.2.1
From a7975473cc41773d9f6d8ea72b48c7656e6cd0f6 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 26 Sep 2014 12:55:30 +0200
Subject: mfd: core: Add helper function to register hotplug devices
Hot-pluggable multi-function devices should always be registered with
PLATFORM_DEVID_AUTO to avoid name collisions on the platform bus. This
helper also hides the memory map and irq parameters, which aren't used
by hot-pluggable (e.g. USB-based) devices.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/core.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index 73e1709d4c09..a76bc100bf97 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -111,6 +111,13 @@ extern int mfd_add_devices(struct device *parent, int id,
struct resource *mem_base,
int irq_base, struct irq_domain *irq_domain);
+static inline int mfd_add_hotplug_devices(struct device *parent,
+ const struct mfd_cell *cells, int n_devs)
+{
+ return mfd_add_devices(parent, PLATFORM_DEVID_AUTO, cells, n_devs,
+ NULL, 0, NULL);
+}
+
extern void mfd_remove_devices(struct device *parent);
#endif
--
cgit v1.2.1
From 338a128142975439a19ab3c91480bc9d5a71f033 Mon Sep 17 00:00:00 2001
From: Octavian Purdila <octavian.purdila@intel.com>
Date: Thu, 6 Nov 2014 15:48:03 +0200
Subject: mfd: Add support for Diolan DLN-2 devices
This patch implements the USB part of the Diolan USB-I2C/SPI/GPIO
Master Adapter DLN-2. Details about the device can be found here:
https://www.diolan.com/i2c/i2c_interface.html.
Information about the USB protocol can be found in the Programmer's
Reference Manual [1], see section 1.7.
Because the hardware has a single transmit endpoint and a single
receive endpoint the communication between the various DLN2 drivers
and the hardware will be muxed/demuxed by this driver.
Each DLN2 module will be identified by the handle field within the DLN2
message header. If a DLN2 module issues multiple commands in parallel
they will be identified by the echo counter field in the message header.
The DLN2 modules can use the dln2_transfer() function to issue a
command and wait for its response. They can also register a callback
that is going to be called when a specific event id is generated by
the device (e.g. GPIO interrupts). The device uses handle 0 for
sending events.
[1] https://www.diolan.com/downloads/dln-api-manual.pdf
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/dln2.h | 103 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 103 insertions(+)
create mode 100644 include/linux/mfd/dln2.h
(limited to 'include')
diff --git a/include/linux/mfd/dln2.h b/include/linux/mfd/dln2.h
new file mode 100644
index 000000000000..004b24576da8
--- /dev/null
+++ b/include/linux/mfd/dln2.h
@@ -0,0 +1,103 @@
+#ifndef __LINUX_USB_DLN2_H
+#define __LINUX_USB_DLN2_H
+
+#define DLN2_CMD(cmd, id) ((cmd) | ((id) << 8))
+
+struct dln2_platform_data {
+ u16 handle; /* sub-driver handle (internally used only) */
+ u8 port; /* I2C/SPI port */
+};
+
+/**
+ * dln2_event_cb_t - event callback function signature
+ *
+ * @pdev - the sub-device that registered this callback
+ * @echo - the echo header field received in the message
+ * @data - the data payload
+ * @len - the data payload length
+ *
+ * The callback function is called in interrupt context and the data payload is
+ * only valid during the call. If the user needs later access of the data, it
+ * must copy it.
+ */
+
+typedef void (*dln2_event_cb_t)(struct platform_device *pdev, u16 echo,
+ const void *data, int len);
+
+/**
+ * dl2n_register_event_cb - register a callback function for an event
+ *
+ * @pdev - the sub-device that registers the callback
+ * @event - the event for which to register a callback
+ * @event_cb - the callback function
+ *
+ * @return 0 in case of success, negative value in case of error
+ */
+int dln2_register_event_cb(struct platform_device *pdev, u16 event,
+ dln2_event_cb_t event_cb);
+
+/**
+ * dln2_unregister_event_cb - unregister the callback function for an event
+ *
+ * @pdev - the sub-device that registered the callback
+ * @event - the event for which to register a callback
+ */
+void dln2_unregister_event_cb(struct platform_device *pdev, u16 event);
+
+/**
+ * dln2_transfer - issue a DLN2 command and wait for a response and the
+ * associated data
+ *
+ * @pdev - the sub-device which is issuing this transfer
+ * @cmd - the command to be sent to the device
+ * @obuf - the buffer to be sent to the device; it can be NULL if the user
+ * doesn't need to transmit data with this command
+ * @obuf_len - the size of the buffer to be sent to the device
+ * @ibuf - any data associated with the response will be copied here; it can be
+ * NULL if the user doesn't need the response data
+ * @ibuf_len - must be initialized to the input buffer size; it will be modified
+ * to indicate the actual data transferred;
+ *
+ * @return 0 for success, negative value for errors
+ */
+int dln2_transfer(struct platform_device *pdev, u16 cmd,
+ const void *obuf, unsigned obuf_len,
+ void *ibuf, unsigned *ibuf_len);
+
+/**
+ * dln2_transfer_rx - variant of @dln2_transfer() where TX buffer is not needed
+ *
+ * @pdev - the sub-device which is issuing this transfer
+ * @cmd - the command to be sent to the device
+ * @ibuf - any data associated with the response will be copied here; it can be
+ * NULL if the user doesn't need the response data
+ * @ibuf_len - must be initialized to the input buffer size; it will be modified
+ * to indicate the actual data transferred;
+ *
+ * @return 0 for success, negative value for errors
+ */
+
+static inline int dln2_transfer_rx(struct platform_device *pdev, u16 cmd,
+ void *ibuf, unsigned *ibuf_len)
+{
+ return dln2_transfer(pdev, cmd, NULL, 0, ibuf, ibuf_len);
+}
+
+/**
+ * dln2_transfer_tx - variant of @dln2_transfer() where RX buffer is not needed
+ *
+ * @pdev - the sub-device which is issuing this transfer
+ * @cmd - the command to be sent to the device
+ * @obuf - the buffer to be sent to the device; it can be NULL if the
+ * user doesn't need to transmit data with this command
+ * @obuf_len - the size of the buffer to be sent to the device
+ *
+ * @return 0 for success, negative value for errors
+ */
+static inline int dln2_transfer_tx(struct platform_device *pdev, u16 cmd,
+ const void *obuf, unsigned obuf_len)
+{
+ return dln2_transfer(pdev, cmd, obuf, obuf_len, NULL, NULL);
+}
+
+#endif
--
cgit v1.2.1
From be955b2984822e2a66176bccb3e0dbaf9cd569b6 Mon Sep 17 00:00:00 2001
From: Dave Taht <dave.taht@bufferbloat.net>
Date: Thu, 6 Nov 2014 08:10:14 -0800
Subject: rtnetlink: add babel protocol recognition
Babel uses rt_proto 42. Add to userspace visible header file.
Signed-off-by: Dave Taht <dave.taht@bufferbloat.net>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/rtnetlink.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index eb0f1a554d7b..9c9b8b4480cd 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -235,6 +235,7 @@ enum {
#define RTPROT_NTK 15 /* Netsukuku */
#define RTPROT_DHCP 16 /* DHCP client */
#define RTPROT_MROUTED 17 /* Multicast daemon */
+#define RTPROT_BABEL 42 /* Babel daemon */
/* rtm_scope
--
cgit v1.2.1
From 3b47d30396bae4f0bd1ff0dbcd7c4f5077e7df4e Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 6 Nov 2014 21:09:44 -0800
Subject: net: gro: add a per device gro flush timer
Tuning coalescing parameters on NIC can be really hard.
Servers can handle both bulk and RPC like traffic, with conflicting
goals : bulk flows want as big GRO packets as possible, RPC want minimal
latencies.
To reach big GRO packets on 10Gbe NIC, one can use :
ethtool -C eth0 rx-usecs 4 rx-frames 44
But this penalizes rpc sessions, with an increase of latencies, up to
50% in some cases, as NICs generally do not force an interrupt when
a packet with TCP Push flag is received.
Some NICs do not have an absolute timer, only a timer rearmed for every
incoming packet.
This patch uses a different strategy : Let GRO stack decides what do do,
based on traffic pattern.
Packets with Push flag wont be delayed.
Packets without Push flag might be held in GRO engine, if we keep
receiving data.
This new mechanism is off by default, and shall be enabled by setting
/sys/class/net/ethX/gro_flush_timeout to a value in nanosecond.
To fully enable this mechanism, drivers should use napi_complete_done()
instead of napi_complete().
Tested:
Ran 200 netperf TCP_STREAM from A to B (10Gbe mlx4 link, 8 RX queues)
Without this feature, we send back about 305,000 ACK per second.
GRO aggregation ratio is low (811/305 = 2.65 segments per GRO packet)
Setting a timer of 2000 nsec is enough to increase GRO packet sizes
and reduce number of ACK packets. (811/19.2 = 42)
Receiver performs less calls to upper stacks, less wakes up.
This also reduces cpu usage on the sender, as it receives less ACK
packets.
Note that reducing number of wakes up increases cpu efficiency, but can
decrease QPS, as applications wont have the chance to warmup cpu caches
doing a partial read of RPC requests/answers if they fit in one skb.
B:~# sar -n DEV 1 10 | grep eth0 | tail -1
Average: eth0 811269.80 305732.30 1199462.57 19705.72 0.00
0.00 0.50
B:~# echo 2000 >/sys/class/net/eth0/gro_flush_timeout
B:~# sar -n DEV 1 10 | grep eth0 | tail -1
Average: eth0 811577.30 19230.80 1199916.51 1239.80 0.00
0.00 0.50
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 90ac95900a11..888d5513fa4a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -314,6 +314,7 @@ struct napi_struct {
struct net_device *dev;
struct sk_buff *gro_list;
struct sk_buff *skb;
+ struct hrtimer timer;
struct list_head dev_list;
struct hlist_node napi_hash_node;
unsigned int napi_id;
@@ -443,14 +444,19 @@ static inline bool napi_reschedule(struct napi_struct *napi)
return false;
}
+void __napi_complete(struct napi_struct *n);
+void napi_complete_done(struct napi_struct *n, int work_done);
/**
* napi_complete - NAPI processing complete
* @n: napi context
*
* Mark NAPI processing as complete.
+ * Consider using napi_complete_done() instead.
*/
-void __napi_complete(struct napi_struct *n);
-void napi_complete(struct napi_struct *n);
+static inline void napi_complete(struct napi_struct *n)
+{
+ return napi_complete_done(n, 0);
+}
/**
* napi_by_id - lookup a NAPI by napi_id
@@ -485,14 +491,7 @@ void napi_hash_del(struct napi_struct *napi);
* Stop NAPI from being scheduled on this context.
* Waits till any outstanding processing completes.
*/
-static inline void napi_disable(struct napi_struct *n)
-{
- might_sleep();
- set_bit(NAPI_STATE_DISABLE, &n->state);
- while (test_and_set_bit(NAPI_STATE_SCHED, &n->state))
- msleep(1);
- clear_bit(NAPI_STATE_DISABLE, &n->state);
-}
+void napi_disable(struct napi_struct *n);
/**
* napi_enable - enable NAPI scheduling
@@ -1603,6 +1602,7 @@ struct net_device {
#endif
+ unsigned long gro_flush_timeout;
rx_handler_func_t __rcu *rx_handler;
void __rcu *rx_handler_data;
--
cgit v1.2.1
From 7aff221c5dbe4f88930a64531df2236f303e1851 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Sat, 8 Nov 2014 10:42:46 +1100
Subject: ARM: OMAP: serial: remove last vestige of DTR_gpio support.
These fields were added by:
commit 9574f36fb801035f6ab0fbb1b53ce2c12c17d100
OMAP/serial: Add support for driving a GPIO as DTR.
but not removed by
commit 985bfd54c826c0ba873ca0adfd5589263e0c6ee2
tty: serial: omap: remove some dead code
which reverted most of that commit.
Time to revert the rest.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
include/linux/platform_data/serial-omap.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/serial-omap.h b/include/linux/platform_data/serial-omap.h
index c860c1b314c0..d09275f3cde3 100644
--- a/include/linux/platform_data/serial-omap.h
+++ b/include/linux/platform_data/serial-omap.h
@@ -38,9 +38,6 @@ struct omap_uart_port_info {
unsigned int dma_rx_timeout;
unsigned int autosuspend_timeout;
unsigned int dma_rx_poll_rate;
- int DTR_gpio;
- int DTR_inverted;
- int DTR_present;
int (*get_context_loss_count)(struct device *);
void (*enable_wakeup)(struct device *, bool);
--
cgit v1.2.1
From 1ef8019be8799c39f316a772ffdd705c46029752 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 10 Nov 2014 13:27:49 -0500
Subject: net: Move bonding headers under include/net
This ways drivers like cxgb4 don't need to do ugly relative includes.
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/bond_3ad.h | 283 ++++++++++++++++++++
include/net/bond_alb.h | 181 +++++++++++++
include/net/bond_options.h | 130 +++++++++
include/net/bonding.h | 654 +++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 1248 insertions(+)
create mode 100644 include/net/bond_3ad.h
create mode 100644 include/net/bond_alb.h
create mode 100644 include/net/bond_options.h
create mode 100644 include/net/bonding.h
(limited to 'include')
diff --git a/include/net/bond_3ad.h b/include/net/bond_3ad.h
new file mode 100644
index 000000000000..e01d903633ef
--- /dev/null
+++ b/include/net/bond_3ad.h
@@ -0,0 +1,283 @@
+/*
+ * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ */
+
+#ifndef _NET_BOND_3AD_H
+#define _NET_BOND_3AD_H
+
+#include <asm/byteorder.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/if_ether.h>
+
+/* General definitions */
+#define PKT_TYPE_LACPDU cpu_to_be16(ETH_P_SLOW)
+#define AD_TIMER_INTERVAL 100 /*msec*/
+
+#define MULTICAST_LACPDU_ADDR {0x01, 0x80, 0xC2, 0x00, 0x00, 0x02}
+
+#define AD_LACP_SLOW 0
+#define AD_LACP_FAST 1
+
+typedef struct mac_addr {
+ u8 mac_addr_value[ETH_ALEN];
+} __packed mac_addr_t;
+
+enum {
+ BOND_AD_STABLE = 0,
+ BOND_AD_BANDWIDTH = 1,
+ BOND_AD_COUNT = 2,
+};
+
+/* rx machine states(43.4.11 in the 802.3ad standard) */
+typedef enum {
+ AD_RX_DUMMY,
+ AD_RX_INITIALIZE, /* rx Machine */
+ AD_RX_PORT_DISABLED, /* rx Machine */
+ AD_RX_LACP_DISABLED, /* rx Machine */
+ AD_RX_EXPIRED, /* rx Machine */
+ AD_RX_DEFAULTED, /* rx Machine */
+ AD_RX_CURRENT /* rx Machine */
+} rx_states_t;
+
+/* periodic machine states(43.4.12 in the 802.3ad standard) */
+typedef enum {
+ AD_PERIODIC_DUMMY,
+ AD_NO_PERIODIC, /* periodic machine */
+ AD_FAST_PERIODIC, /* periodic machine */
+ AD_SLOW_PERIODIC, /* periodic machine */
+ AD_PERIODIC_TX /* periodic machine */
+} periodic_states_t;
+
+/* mux machine states(43.4.13 in the 802.3ad standard) */
+typedef enum {
+ AD_MUX_DUMMY,
+ AD_MUX_DETACHED, /* mux machine */
+ AD_MUX_WAITING, /* mux machine */
+ AD_MUX_ATTACHED, /* mux machine */
+ AD_MUX_COLLECTING_DISTRIBUTING /* mux machine */
+} mux_states_t;
+
+/* tx machine states(43.4.15 in the 802.3ad standard) */
+typedef enum {
+ AD_TX_DUMMY,
+ AD_TRANSMIT /* tx Machine */
+} tx_states_t;
+
+/* rx indication types */
+typedef enum {
+ AD_TYPE_LACPDU = 1, /* type lacpdu */
+ AD_TYPE_MARKER /* type marker */
+} pdu_type_t;
+
+/* rx marker indication types */
+typedef enum {
+ AD_MARKER_INFORMATION_SUBTYPE = 1, /* marker imformation subtype */
+ AD_MARKER_RESPONSE_SUBTYPE /* marker response subtype */
+} bond_marker_subtype_t;
+
+/* timers types(43.4.9 in the 802.3ad standard) */
+typedef enum {
+ AD_CURRENT_WHILE_TIMER,
+ AD_ACTOR_CHURN_TIMER,
+ AD_PERIODIC_TIMER,
+ AD_PARTNER_CHURN_TIMER,
+ AD_WAIT_WHILE_TIMER
+} ad_timers_t;
+
+#pragma pack(1)
+
+/* Link Aggregation Control Protocol(LACP) data unit structure(43.4.2.2 in the 802.3ad standard) */
+typedef struct lacpdu {
+ u8 subtype; /* = LACP(= 0x01) */
+ u8 version_number;
+ u8 tlv_type_actor_info; /* = actor information(type/length/value) */
+ u8 actor_information_length; /* = 20 */
+ __be16 actor_system_priority;
+ struct mac_addr actor_system;
+ __be16 actor_key;
+ __be16 actor_port_priority;
+ __be16 actor_port;
+ u8 actor_state;
+ u8 reserved_3_1[3]; /* = 0 */
+ u8 tlv_type_partner_info; /* = partner information */
+ u8 partner_information_length; /* = 20 */
+ __be16 partner_system_priority;
+ struct mac_addr partner_system;
+ __be16 partner_key;
+ __be16 partner_port_priority;
+ __be16 partner_port;
+ u8 partner_state;
+ u8 reserved_3_2[3]; /* = 0 */
+ u8 tlv_type_collector_info; /* = collector information */
+ u8 collector_information_length;/* = 16 */
+ __be16 collector_max_delay;
+ u8 reserved_12[12];
+ u8 tlv_type_terminator; /* = terminator */
+ u8 terminator_length; /* = 0 */
+ u8 reserved_50[50]; /* = 0 */
+} __packed lacpdu_t;
+
+typedef struct lacpdu_header {
+ struct ethhdr hdr;
+ struct lacpdu lacpdu;
+} __packed lacpdu_header_t;
+
+/* Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard) */
+typedef struct bond_marker {
+ u8 subtype; /* = 0x02 (marker PDU) */
+ u8 version_number; /* = 0x01 */
+ u8 tlv_type; /* = 0x01 (marker information) */
+ /* = 0x02 (marker response information) */
+ u8 marker_length; /* = 0x16 */
+ u16 requester_port; /* The number assigned to the port by the requester */
+ struct mac_addr requester_system; /* The requester's system id */
+ u32 requester_transaction_id; /* The transaction id allocated by the requester, */
+ u16 pad; /* = 0 */
+ u8 tlv_type_terminator; /* = 0x00 */
+ u8 terminator_length; /* = 0x00 */
+ u8 reserved_90[90]; /* = 0 */
+} __packed bond_marker_t;
+
+typedef struct bond_marker_header {
+ struct ethhdr hdr;
+ struct bond_marker marker;
+} __packed bond_marker_header_t;
+
+#pragma pack()
+
+struct slave;
+struct bonding;
+struct ad_info;
+struct port;
+
+#ifdef __ia64__
+#pragma pack(8)
+#endif
+
+/* aggregator structure(43.4.5 in the 802.3ad standard) */
+typedef struct aggregator {
+ struct mac_addr aggregator_mac_address;
+ u16 aggregator_identifier;
+ bool is_individual;
+ u16 actor_admin_aggregator_key;
+ u16 actor_oper_aggregator_key;
+ struct mac_addr partner_system;
+ u16 partner_system_priority;
+ u16 partner_oper_aggregator_key;
+ u16 receive_state; /* BOOLEAN */
+ u16 transmit_state; /* BOOLEAN */
+ struct port *lag_ports;
+ /* ****** PRIVATE PARAMETERS ****** */
+ struct slave *slave; /* pointer to the bond slave that this aggregator belongs to */
+ u16 is_active; /* BOOLEAN. Indicates if this aggregator is active */
+ u16 num_of_ports;
+} aggregator_t;
+
+struct port_params {
+ struct mac_addr system;
+ u16 system_priority;
+ u16 key;
+ u16 port_number;
+ u16 port_priority;
+ u16 port_state;
+};
+
+/* port structure(43.4.6 in the 802.3ad standard) */
+typedef struct port {
+ u16 actor_port_number;
+ u16 actor_port_priority;
+ struct mac_addr actor_system; /* This parameter is added here although it is not specified in the standard, just for simplification */
+ u16 actor_system_priority; /* This parameter is added here although it is not specified in the standard, just for simplification */
+ u16 actor_port_aggregator_identifier;
+ bool ntt;
+ u16 actor_admin_port_key;
+ u16 actor_oper_port_key;
+ u8 actor_admin_port_state;
+ u8 actor_oper_port_state;
+
+ struct port_params partner_admin;
+ struct port_params partner_oper;
+
+ bool is_enabled;
+
+ /* ****** PRIVATE PARAMETERS ****** */
+ u16 sm_vars; /* all state machines variables for this port */
+ rx_states_t sm_rx_state; /* state machine rx state */
+ u16 sm_rx_timer_counter; /* state machine rx timer counter */
+ periodic_states_t sm_periodic_state; /* state machine periodic state */
+ u16 sm_periodic_timer_counter; /* state machine periodic timer counter */
+ mux_states_t sm_mux_state; /* state machine mux state */
+ u16 sm_mux_timer_counter; /* state machine mux timer counter */
+ tx_states_t sm_tx_state; /* state machine tx state */
+ u16 sm_tx_timer_counter; /* state machine tx timer counter(allways on - enter to transmit state 3 time per second) */
+ struct slave *slave; /* pointer to the bond slave that this port belongs to */
+ struct aggregator *aggregator; /* pointer to an aggregator that this port related to */
+ struct port *next_port_in_aggregator; /* Next port on the linked list of the parent aggregator */
+ u32 transaction_id; /* continuous number for identification of Marker PDU's; */
+ struct lacpdu lacpdu; /* the lacpdu that will be sent for this port */
+} port_t;
+
+/* system structure */
+struct ad_system {
+ u16 sys_priority;
+ struct mac_addr sys_mac_addr;
+};
+
+#ifdef __ia64__
+#pragma pack()
+#endif
+
+/* ========== AD Exported structures to the main bonding code ========== */
+#define BOND_AD_INFO(bond) ((bond)->ad_info)
+#define SLAVE_AD_INFO(slave) ((slave)->ad_info)
+
+struct ad_bond_info {
+ struct ad_system system; /* 802.3ad system structure */
+ u32 agg_select_timer; /* Timer to select aggregator after all adapter's hand shakes */
+ u16 aggregator_identifier;
+};
+
+struct ad_slave_info {
+ struct aggregator aggregator; /* 802.3ad aggregator structure */
+ struct port port; /* 802.3ad port structure */
+ u16 id;
+};
+
+/* ========== AD Exported functions to the main bonding code ========== */
+void bond_3ad_initialize(struct bonding *bond, u16 tick_resolution);
+void bond_3ad_bind_slave(struct slave *slave);
+void bond_3ad_unbind_slave(struct slave *slave);
+void bond_3ad_state_machine_handler(struct work_struct *);
+void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout);
+void bond_3ad_adapter_speed_changed(struct slave *slave);
+void bond_3ad_adapter_duplex_changed(struct slave *slave);
+void bond_3ad_handle_link_change(struct slave *slave, char link);
+int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info);
+int __bond_3ad_get_active_agg_info(struct bonding *bond,
+ struct ad_info *ad_info);
+int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev);
+int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond,
+ struct slave *slave);
+int bond_3ad_set_carrier(struct bonding *bond);
+void bond_3ad_update_lacp_rate(struct bonding *bond);
+#endif /* _NET_BOND_3AD_H */
+
diff --git a/include/net/bond_alb.h b/include/net/bond_alb.h
new file mode 100644
index 000000000000..313a8d3b3069
--- /dev/null
+++ b/include/net/bond_alb.h
@@ -0,0 +1,181 @@
+/*
+ * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ */
+
+#ifndef _NET_BOND_ALB_H
+#define _NET_BOND_ALB_H
+
+#include <linux/if_ether.h>
+
+struct bonding;
+struct slave;
+
+#define BOND_ALB_INFO(bond) ((bond)->alb_info)
+#define SLAVE_TLB_INFO(slave) ((slave)->tlb_info)
+
+#define ALB_TIMER_TICKS_PER_SEC 10 /* should be a divisor of HZ */
+#define BOND_TLB_REBALANCE_INTERVAL 10 /* In seconds, periodic re-balancing.
+ * Used for division - never set
+ * to zero !!!
+ */
+#define BOND_ALB_DEFAULT_LP_INTERVAL 1
+#define BOND_ALB_LP_INTERVAL(bond) (bond->params.lp_interval) /* In seconds, periodic send of
+ * learning packets to the switch
+ */
+
+#define BOND_TLB_REBALANCE_TICKS (BOND_TLB_REBALANCE_INTERVAL \
+ * ALB_TIMER_TICKS_PER_SEC)
+
+#define BOND_ALB_LP_TICKS(bond) (BOND_ALB_LP_INTERVAL(bond) \
+ * ALB_TIMER_TICKS_PER_SEC)
+
+#define TLB_HASH_TABLE_SIZE 256 /* The size of the clients hash table.
+ * Note that this value MUST NOT be smaller
+ * because the key hash table is BYTE wide !
+ */
+
+
+#define TLB_NULL_INDEX 0xffffffff
+
+/* rlb defs */
+#define RLB_HASH_TABLE_SIZE 256
+#define RLB_NULL_INDEX 0xffffffff
+#define RLB_UPDATE_DELAY (2*ALB_TIMER_TICKS_PER_SEC) /* 2 seconds */
+#define RLB_ARP_BURST_SIZE 2
+#define RLB_UPDATE_RETRY 3 /* 3-ticks - must be smaller than the rlb
+ * rebalance interval (5 min).
+ */
+/* RLB_PROMISC_TIMEOUT = 10 sec equals the time that the current slave is
+ * promiscuous after failover
+ */
+#define RLB_PROMISC_TIMEOUT (10*ALB_TIMER_TICKS_PER_SEC)
+
+
+struct tlb_client_info {
+ struct slave *tx_slave; /* A pointer to slave used for transmiting
+ * packets to a Client that the Hash function
+ * gave this entry index.
+ */
+ u32 tx_bytes; /* Each Client accumulates the BytesTx that
+ * were transmitted to it, and after each
+ * CallBack the LoadHistory is divided
+ * by the balance interval
+ */
+ u32 load_history; /* This field contains the amount of Bytes
+ * that were transmitted to this client by
+ * the server on the previous balance
+ * interval in Bps.
+ */
+ u32 next; /* The next Hash table entry index, assigned
+ * to use the same adapter for transmit.
+ */
+ u32 prev; /* The previous Hash table entry index,
+ * assigned to use the same
+ */
+};
+
+/* -------------------------------------------------------------------------
+ * struct rlb_client_info contains all info related to a specific rx client
+ * connection. This is the Clients Hash Table entry struct.
+ * Note that this is not a proper hash table; if a new client's IP address
+ * hash collides with an existing client entry, the old entry is replaced.
+ *
+ * There is a linked list (linked by the used_next and used_prev members)
+ * linking all the used entries of the hash table. This allows updating
+ * all the clients without walking over all the unused elements of the table.
+ *
+ * There are also linked lists of entries with identical hash(ip_src). These
+ * allow cleaning up the table from ip_src<->mac_src associations that have
+ * become outdated and would cause sending out invalid ARP updates to the
+ * network. These are linked by the (src_next and src_prev members).
+ * -------------------------------------------------------------------------
+ */
+struct rlb_client_info {
+ __be32 ip_src; /* the server IP address */
+ __be32 ip_dst; /* the client IP address */
+ u8 mac_src[ETH_ALEN]; /* the server MAC address */
+ u8 mac_dst[ETH_ALEN]; /* the client MAC address */
+
+ /* list of used hash table entries, starting at rx_hashtbl_used_head */
+ u32 used_next;
+ u32 used_prev;
+
+ /* ip_src based hashing */
+ u32 src_next; /* next entry with same hash(ip_src) */
+ u32 src_prev; /* prev entry with same hash(ip_src) */
+ u32 src_first; /* first entry with hash(ip_src) == this entry's index */
+
+ u8 assigned; /* checking whether this entry is assigned */
+ u8 ntt; /* flag - need to transmit client info */
+ struct slave *slave; /* the slave assigned to this client */
+ unsigned short vlan_id; /* VLAN tag associated with IP address */
+};
+
+struct tlb_slave_info {
+ u32 head; /* Index to the head of the bi-directional clients
+ * hash table entries list. The entries in the list
+ * are the entries that were assigned to use this
+ * slave for transmit.
+ */
+ u32 load; /* Each slave sums the loadHistory of all clients
+ * assigned to it
+ */
+};
+
+struct alb_bond_info {
+ struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */
+ u32 unbalanced_load;
+ int tx_rebalance_counter;
+ int lp_counter;
+ /* -------- rlb parameters -------- */
+ int rlb_enabled;
+ struct rlb_client_info *rx_hashtbl; /* Receive hash table */
+ u32 rx_hashtbl_used_head;
+ u8 rx_ntt; /* flag - need to transmit
+ * to all rx clients
+ */
+ struct slave *rx_slave;/* last slave to xmit from */
+ u8 primary_is_promisc; /* boolean */
+ u32 rlb_promisc_timeout_counter;/* counts primary
+ * promiscuity time
+ */
+ u32 rlb_update_delay_counter;
+ u32 rlb_update_retry_counter;/* counter of retries
+ * of client update
+ */
+ u8 rlb_rebalance; /* flag - indicates that the
+ * rx traffic should be
+ * rebalanced
+ */
+};
+
+int bond_alb_initialize(struct bonding *bond, int rlb_enabled);
+void bond_alb_deinitialize(struct bonding *bond);
+int bond_alb_init_slave(struct bonding *bond, struct slave *slave);
+void bond_alb_deinit_slave(struct bonding *bond, struct slave *slave);
+void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char link);
+void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave);
+int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev);
+int bond_tlb_xmit(struct sk_buff *skb, struct net_device *bond_dev);
+void bond_alb_monitor(struct work_struct *);
+int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr);
+void bond_alb_clear_vlan(struct bonding *bond, unsigned short vlan_id);
+#endif /* _NET_BOND_ALB_H */
+
diff --git a/include/net/bond_options.h b/include/net/bond_options.h
new file mode 100644
index 000000000000..ea6546d2c946
--- /dev/null
+++ b/include/net/bond_options.h
@@ -0,0 +1,130 @@
+/*
+ * drivers/net/bond/bond_options.h - bonding options
+ * Copyright (c) 2013 Nikolay Aleksandrov <nikolay@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef _NET_BOND_OPTIONS_H
+#define _NET_BOND_OPTIONS_H
+
+#define BOND_OPT_MAX_NAMELEN 32
+#define BOND_OPT_VALID(opt) ((opt) < BOND_OPT_LAST)
+#define BOND_MODE_ALL_EX(x) (~(x))
+
+/* Option flags:
+ * BOND_OPTFLAG_NOSLAVES - check if the bond device is empty before setting
+ * BOND_OPTFLAG_IFDOWN - check if the bond device is down before setting
+ * BOND_OPTFLAG_RAWVAL - the option parses the value itself
+ */
+enum {
+ BOND_OPTFLAG_NOSLAVES = BIT(0),
+ BOND_OPTFLAG_IFDOWN = BIT(1),
+ BOND_OPTFLAG_RAWVAL = BIT(2)
+};
+
+/* Value type flags:
+ * BOND_VALFLAG_DEFAULT - mark the value as default
+ * BOND_VALFLAG_(MIN|MAX) - mark the value as min/max
+ */
+enum {
+ BOND_VALFLAG_DEFAULT = BIT(0),
+ BOND_VALFLAG_MIN = BIT(1),
+ BOND_VALFLAG_MAX = BIT(2)
+};
+
+/* Option IDs, their bit positions correspond to their IDs */
+enum {
+ BOND_OPT_MODE,
+ BOND_OPT_PACKETS_PER_SLAVE,
+ BOND_OPT_XMIT_HASH,
+ BOND_OPT_ARP_VALIDATE,
+ BOND_OPT_ARP_ALL_TARGETS,
+ BOND_OPT_FAIL_OVER_MAC,
+ BOND_OPT_ARP_INTERVAL,
+ BOND_OPT_ARP_TARGETS,
+ BOND_OPT_DOWNDELAY,
+ BOND_OPT_UPDELAY,
+ BOND_OPT_LACP_RATE,
+ BOND_OPT_MINLINKS,
+ BOND_OPT_AD_SELECT,
+ BOND_OPT_NUM_PEER_NOTIF,
+ BOND_OPT_MIIMON,
+ BOND_OPT_PRIMARY,
+ BOND_OPT_PRIMARY_RESELECT,
+ BOND_OPT_USE_CARRIER,
+ BOND_OPT_ACTIVE_SLAVE,
+ BOND_OPT_QUEUE_ID,
+ BOND_OPT_ALL_SLAVES_ACTIVE,
+ BOND_OPT_RESEND_IGMP,
+ BOND_OPT_LP_INTERVAL,
+ BOND_OPT_SLAVES,
+ BOND_OPT_TLB_DYNAMIC_LB,
+ BOND_OPT_LAST
+};
+
+/* This structure is used for storing option values and for passing option
+ * values when changing an option. The logic when used as an arg is as follows:
+ * - if string != NULL -> parse it, if the opt is RAW type then return it, else
+ * return the parse result
+ * - if string == NULL -> parse value
+ */
+struct bond_opt_value {
+ char *string;
+ u64 value;
+ u32 flags;
+};
+
+struct bonding;
+
+struct bond_option {
+ int id;
+ const char *name;
+ const char *desc;
+ u32 flags;
+
+ /* unsuppmodes is used to denote modes in which the option isn't
+ * supported.
+ */
+ unsigned long unsuppmodes;
+ /* supported values which this option can have, can be a subset of
+ * BOND_OPTVAL_RANGE's value range
+ */
+ const struct bond_opt_value *values;
+
+ int (*set)(struct bonding *bond, const struct bond_opt_value *val);
+};
+
+int __bond_opt_set(struct bonding *bond, unsigned int option,
+ struct bond_opt_value *val);
+int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf);
+
+const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
+ struct bond_opt_value *val);
+const struct bond_option *bond_opt_get(unsigned int option);
+const struct bond_option *bond_opt_get_by_name(const char *name);
+const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val);
+
+/* This helper is used to initialize a bond_opt_value structure for parameter
+ * passing. There should be either a valid string or value, but not both.
+ * When value is ULLONG_MAX then string will be used.
+ */
+static inline void __bond_opt_init(struct bond_opt_value *optval,
+ char *string, u64 value)
+{
+ memset(optval, 0, sizeof(*optval));
+ optval->value = ULLONG_MAX;
+ if (value == ULLONG_MAX)
+ optval->string = string;
+ else
+ optval->value = value;
+}
+#define bond_opt_initval(optval, value) __bond_opt_init(optval, NULL, value)
+#define bond_opt_initstr(optval, str) __bond_opt_init(optval, str, ULLONG_MAX)
+
+void bond_option_arp_ip_targets_clear(struct bonding *bond);
+
+#endif /* _NET_BOND_OPTIONS_H */
diff --git a/include/net/bonding.h b/include/net/bonding.h
new file mode 100644
index 000000000000..983a94b86b95
--- /dev/null
+++ b/include/net/bonding.h
@@ -0,0 +1,654 @@
+/*
+ * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
+ *
+ * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
+ * NCM: Network and Communications Management, Inc.
+ *
+ * BUT, I'm the one who modified it for ethernet, so:
+ * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU Public License, incorporated herein by reference.
+ *
+ */
+
+#ifndef _NET_BONDING_H
+#define _NET_BONDING_H
+
+#include <linux/timer.h>
+#include <linux/proc_fs.h>
+#include <linux/if_bonding.h>
+#include <linux/cpumask.h>
+#include <linux/in6.h>
+#include <linux/netpoll.h>
+#include <linux/inetdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/reciprocal_div.h>
+#include <linux/if_link.h>
+
+#include <net/bond_3ad.h>
+#include <net/bond_alb.h>
+#include <net/bond_options.h>
+
+#define DRV_VERSION "3.7.1"
+#define DRV_RELDATE "April 27, 2011"
+#define DRV_NAME "bonding"
+#define DRV_DESCRIPTION "Ethernet Channel Bonding Driver"
+
+#define bond_version DRV_DESCRIPTION ": v" DRV_VERSION " (" DRV_RELDATE ")\n"
+
+#define BOND_MAX_ARP_TARGETS 16
+
+#define BOND_DEFAULT_MIIMON 100
+
+/*
+ * Less bad way to call ioctl from within the kernel; this needs to be
+ * done some other way to get the call out of interrupt context.
+ * Needs "ioctl" variable to be supplied by calling context.
+ */
+#define IOCTL(dev, arg, cmd) ({ \
+ int res = 0; \
+ mm_segment_t fs = get_fs(); \
+ set_fs(get_ds()); \
+ res = ioctl(dev, arg, cmd); \
+ set_fs(fs); \
+ res; })
+
+#define BOND_MODE(bond) ((bond)->params.mode)
+
+/* slave list primitives */
+#define bond_slave_list(bond) (&(bond)->dev->adj_list.lower)
+
+#define bond_has_slaves(bond) !list_empty(bond_slave_list(bond))
+
+/* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */
+#define bond_first_slave(bond) \
+ (bond_has_slaves(bond) ? \
+ netdev_adjacent_get_private(bond_slave_list(bond)->next) : \
+ NULL)
+#define bond_last_slave(bond) \
+ (bond_has_slaves(bond) ? \
+ netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \
+ NULL)
+
+/* Caller must have rcu_read_lock */
+#define bond_first_slave_rcu(bond) \
+ netdev_lower_get_first_private_rcu(bond->dev)
+
+#define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond))
+#define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond))
+
+/**
+ * bond_for_each_slave - iterate over all slaves
+ * @bond: the bond holding this list
+ * @pos: current slave
+ * @iter: list_head * iterator
+ *
+ * Caller must hold RTNL
+ */
+#define bond_for_each_slave(bond, pos, iter) \
+ netdev_for_each_lower_private((bond)->dev, pos, iter)
+
+/* Caller must have rcu_read_lock */
+#define bond_for_each_slave_rcu(bond, pos, iter) \
+ netdev_for_each_lower_private_rcu((bond)->dev, pos, iter)
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+extern atomic_t netpoll_block_tx;
+
+static inline void block_netpoll_tx(void)
+{
+ atomic_inc(&netpoll_block_tx);
+}
+
+static inline void unblock_netpoll_tx(void)
+{
+ atomic_dec(&netpoll_block_tx);
+}
+
+static inline int is_netpoll_tx_blocked(struct net_device *dev)
+{
+ if (unlikely(netpoll_tx_running(dev)))
+ return atomic_read(&netpoll_block_tx);
+ return 0;
+}
+#else
+#define block_netpoll_tx()
+#define unblock_netpoll_tx()
+#define is_netpoll_tx_blocked(dev) (0)
+#endif
+
+struct bond_params {
+ int mode;
+ int xmit_policy;
+ int miimon;
+ u8 num_peer_notif;
+ int arp_interval;
+ int arp_validate;
+ int arp_all_targets;
+ int use_carrier;
+ int fail_over_mac;
+ int updelay;
+ int downdelay;
+ int lacp_fast;
+ unsigned int min_links;
+ int ad_select;
+ char primary[IFNAMSIZ];
+ int primary_reselect;
+ __be32 arp_targets[BOND_MAX_ARP_TARGETS];
+ int tx_queues;
+ int all_slaves_active;
+ int resend_igmp;
+ int lp_interval;
+ int packets_per_slave;
+ int tlb_dynamic_lb;
+ struct reciprocal_value reciprocal_packets_per_slave;
+};
+
+struct bond_parm_tbl {
+ char *modename;
+ int mode;
+};
+
+struct slave {
+ struct net_device *dev; /* first - useful for panic debug */
+ struct bonding *bond; /* our master */
+ int delay;
+ /* all three in jiffies */
+ unsigned long last_link_up;
+ unsigned long last_rx;
+ unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS];
+ s8 link; /* one of BOND_LINK_XXXX */
+ s8 new_link;
+ u8 backup:1, /* indicates backup slave. Value corresponds with
+ BOND_STATE_ACTIVE and BOND_STATE_BACKUP */
+ inactive:1, /* indicates inactive slave */
+ should_notify:1; /* indicateds whether the state changed */
+ u8 duplex;
+ u32 original_mtu;
+ u32 link_failure_count;
+ u32 speed;
+ u16 queue_id;
+ u8 perm_hwaddr[ETH_ALEN];
+ struct ad_slave_info *ad_info;
+ struct tlb_slave_info tlb_info;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ struct netpoll *np;
+#endif
+ struct kobject kobj;
+ struct rtnl_link_stats64 slave_stats;
+};
+
+struct bond_up_slave {
+ unsigned int count;
+ struct rcu_head rcu;
+ struct slave *arr[0];
+};
+
+/*
+ * Link pseudo-state only used internally by monitors
+ */
+#define BOND_LINK_NOCHANGE -1
+
+/*
+ * Here are the locking policies for the two bonding locks:
+ * Get rcu_read_lock when reading or RTNL when writing slave list.
+ */
+struct bonding {
+ struct net_device *dev; /* first - useful for panic debug */
+ struct slave __rcu *curr_active_slave;
+ struct slave __rcu *current_arp_slave;
+ struct slave __rcu *primary_slave;
+ struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */
+ bool force_primary;
+ s32 slave_cnt; /* never change this value outside the attach/detach wrappers */
+ int (*recv_probe)(const struct sk_buff *, struct bonding *,
+ struct slave *);
+ /* mode_lock is used for mode-specific locking needs, currently used by:
+ * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and
+ * bond_3ad_state_machine_handler() concurrently and also
+ * the access to the state machine shared variables.
+ * TLB mode (5) - to sync the use and modifications of its hash table
+ * ALB mode (6) - to sync the use and modifications of its hash table
+ */
+ spinlock_t mode_lock;
+ u8 send_peer_notif;
+ u8 igmp_retrans;
+#ifdef CONFIG_PROC_FS
+ struct proc_dir_entry *proc_entry;
+ char proc_file_name[IFNAMSIZ];
+#endif /* CONFIG_PROC_FS */
+ struct list_head bond_list;
+ u32 rr_tx_counter;
+ struct ad_bond_info ad_info;
+ struct alb_bond_info alb_info;
+ struct bond_params params;
+ struct workqueue_struct *wq;
+ struct delayed_work mii_work;
+ struct delayed_work arp_work;
+ struct delayed_work alb_work;
+ struct delayed_work ad_work;
+ struct delayed_work mcast_work;
+ struct delayed_work slave_arr_work;
+#ifdef CONFIG_DEBUG_FS
+ /* debugging support via debugfs */
+ struct dentry *debug_dir;
+#endif /* CONFIG_DEBUG_FS */
+ struct rtnl_link_stats64 bond_stats;
+};
+
+#define bond_slave_get_rcu(dev) \
+ ((struct slave *) rcu_dereference(dev->rx_handler_data))
+
+#define bond_slave_get_rtnl(dev) \
+ ((struct slave *) rtnl_dereference(dev->rx_handler_data))
+
+struct bond_vlan_tag {
+ __be16 vlan_proto;
+ unsigned short vlan_id;
+};
+
+/**
+ * Returns NULL if the net_device does not belong to any of the bond's slaves
+ *
+ * Caller must hold bond lock for read
+ */
+static inline struct slave *bond_get_slave_by_dev(struct bonding *bond,
+ struct net_device *slave_dev)
+{
+ return netdev_lower_dev_get_private(bond->dev, slave_dev);
+}
+
+static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
+{
+ return slave->bond;
+}
+
+static inline bool bond_should_override_tx_queue(struct bonding *bond)
+{
+ return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP ||
+ BOND_MODE(bond) == BOND_MODE_ROUNDROBIN;
+}
+
+static inline bool bond_is_lb(const struct bonding *bond)
+{
+ return BOND_MODE(bond) == BOND_MODE_TLB ||
+ BOND_MODE(bond) == BOND_MODE_ALB;
+}
+
+static inline bool bond_is_nondyn_tlb(const struct bonding *bond)
+{
+ return (BOND_MODE(bond) == BOND_MODE_TLB) &&
+ (bond->params.tlb_dynamic_lb == 0);
+}
+
+static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond)
+{
+ return (BOND_MODE(bond) == BOND_MODE_8023AD ||
+ BOND_MODE(bond) == BOND_MODE_XOR ||
+ bond_is_nondyn_tlb(bond));
+}
+
+static inline bool bond_mode_uses_arp(int mode)
+{
+ return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB &&
+ mode != BOND_MODE_ALB;
+}
+
+static inline bool bond_mode_uses_primary(int mode)
+{
+ return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB ||
+ mode == BOND_MODE_ALB;
+}
+
+static inline bool bond_uses_primary(struct bonding *bond)
+{
+ return bond_mode_uses_primary(BOND_MODE(bond));
+}
+
+static inline bool bond_slave_is_up(struct slave *slave)
+{
+ return netif_running(slave->dev) && netif_carrier_ok(slave->dev);
+}
+
+static inline void bond_set_active_slave(struct slave *slave)
+{
+ if (slave->backup) {
+ slave->backup = 0;
+ rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
+ }
+}
+
+static inline void bond_set_backup_slave(struct slave *slave)
+{
+ if (!slave->backup) {
+ slave->backup = 1;
+ rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
+ }
+}
+
+static inline void bond_set_slave_state(struct slave *slave,
+ int slave_state, bool notify)
+{
+ if (slave->backup == slave_state)
+ return;
+
+ slave->backup = slave_state;
+ if (notify) {
+ rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
+ slave->should_notify = 0;
+ } else {
+ if (slave->should_notify)
+ slave->should_notify = 0;
+ else
+ slave->should_notify = 1;
+ }
+}
+
+static inline void bond_slave_state_change(struct bonding *bond)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave(bond, tmp, iter) {
+ if (tmp->link == BOND_LINK_UP)
+ bond_set_active_slave(tmp);
+ else if (tmp->link == BOND_LINK_DOWN)
+ bond_set_backup_slave(tmp);
+ }
+}
+
+static inline void bond_slave_state_notify(struct bonding *bond)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave(bond, tmp, iter) {
+ if (tmp->should_notify) {
+ rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC);
+ tmp->should_notify = 0;
+ }
+ }
+}
+
+static inline int bond_slave_state(struct slave *slave)
+{
+ return slave->backup;
+}
+
+static inline bool bond_is_active_slave(struct slave *slave)
+{
+ return !bond_slave_state(slave);
+}
+
+static inline bool bond_slave_can_tx(struct slave *slave)
+{
+ return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP &&
+ bond_is_active_slave(slave);
+}
+
+#define BOND_PRI_RESELECT_ALWAYS 0
+#define BOND_PRI_RESELECT_BETTER 1
+#define BOND_PRI_RESELECT_FAILURE 2
+
+#define BOND_FOM_NONE 0
+#define BOND_FOM_ACTIVE 1
+#define BOND_FOM_FOLLOW 2
+
+#define BOND_ARP_TARGETS_ANY 0
+#define BOND_ARP_TARGETS_ALL 1
+
+#define BOND_ARP_VALIDATE_NONE 0
+#define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE)
+#define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP)
+#define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \
+ BOND_ARP_VALIDATE_BACKUP)
+#define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1)
+#define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \
+ BOND_ARP_FILTER)
+#define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \
+ BOND_ARP_FILTER)
+
+#define BOND_SLAVE_NOTIFY_NOW true
+#define BOND_SLAVE_NOTIFY_LATER false
+
+static inline int slave_do_arp_validate(struct bonding *bond,
+ struct slave *slave)
+{
+ return bond->params.arp_validate & (1 << bond_slave_state(slave));
+}
+
+static inline int slave_do_arp_validate_only(struct bonding *bond)
+{
+ return bond->params.arp_validate & BOND_ARP_FILTER;
+}
+
+static inline int bond_is_ip_target_ok(__be32 addr)
+{
+ return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr);
+}
+
+/* Get the oldest arp which we've received on this slave for bond's
+ * arp_targets.
+ */
+static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond,
+ struct slave *slave)
+{
+ int i = 1;
+ unsigned long ret = slave->target_last_arp_rx[0];
+
+ for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++)
+ if (time_before(slave->target_last_arp_rx[i], ret))
+ ret = slave->target_last_arp_rx[i];
+
+ return ret;
+}
+
+static inline unsigned long slave_last_rx(struct bonding *bond,
+ struct slave *slave)
+{
+ if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL)
+ return slave_oldest_target_arp_rx(bond, slave);
+
+ return slave->last_rx;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static inline void bond_netpoll_send_skb(const struct slave *slave,
+ struct sk_buff *skb)
+{
+ struct netpoll *np = slave->np;
+
+ if (np)
+ netpoll_send_skb(np, skb);
+}
+#else
+static inline void bond_netpoll_send_skb(const struct slave *slave,
+ struct sk_buff *skb)
+{
+}
+#endif
+
+static inline void bond_set_slave_inactive_flags(struct slave *slave,
+ bool notify)
+{
+ if (!bond_is_lb(slave->bond))
+ bond_set_slave_state(slave, BOND_STATE_BACKUP, notify);
+ if (!slave->bond->params.all_slaves_active)
+ slave->inactive = 1;
+}
+
+static inline void bond_set_slave_active_flags(struct slave *slave,
+ bool notify)
+{
+ bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify);
+ slave->inactive = 0;
+}
+
+static inline bool bond_is_slave_inactive(struct slave *slave)
+{
+ return slave->inactive;
+}
+
+static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local)
+{
+ struct in_device *in_dev;
+ __be32 addr = 0;
+
+ rcu_read_lock();
+ in_dev = __in_dev_get_rcu(dev);
+
+ if (in_dev)
+ addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local,
+ RT_SCOPE_HOST);
+ rcu_read_unlock();
+ return addr;
+}
+
+struct bond_net {
+ struct net *net; /* Associated network namespace */
+ struct list_head dev_list;
+#ifdef CONFIG_PROC_FS
+ struct proc_dir_entry *proc_dir;
+#endif
+ struct class_attribute class_attr_bonding_masters;
+};
+
+int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave);
+void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
+int bond_create(struct net *net, const char *name);
+int bond_create_sysfs(struct bond_net *net);
+void bond_destroy_sysfs(struct bond_net *net);
+void bond_prepare_sysfs_group(struct bonding *bond);
+int bond_sysfs_slave_add(struct slave *slave);
+void bond_sysfs_slave_del(struct slave *slave);
+int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev);
+int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
+u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb);
+void bond_select_active_slave(struct bonding *bond);
+void bond_change_active_slave(struct bonding *bond, struct slave *new_active);
+void bond_create_debugfs(void);
+void bond_destroy_debugfs(void);
+void bond_debug_register(struct bonding *bond);
+void bond_debug_unregister(struct bonding *bond);
+void bond_debug_reregister(struct bonding *bond);
+const char *bond_mode_name(int mode);
+void bond_setup(struct net_device *bond_dev);
+unsigned int bond_get_num_tx_queues(void);
+int bond_netlink_init(void);
+void bond_netlink_fini(void);
+struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
+const char *bond_slave_link_status(s8 link);
+struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev,
+ struct net_device *end_dev,
+ int level);
+int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave);
+void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay);
+
+#ifdef CONFIG_PROC_FS
+void bond_create_proc_entry(struct bonding *bond);
+void bond_remove_proc_entry(struct bonding *bond);
+void bond_create_proc_dir(struct bond_net *bn);
+void bond_destroy_proc_dir(struct bond_net *bn);
+#else
+static inline void bond_create_proc_entry(struct bonding *bond)
+{
+}
+
+static inline void bond_remove_proc_entry(struct bonding *bond)
+{
+}
+
+static inline void bond_create_proc_dir(struct bond_net *bn)
+{
+}
+
+static inline void bond_destroy_proc_dir(struct bond_net *bn)
+{
+}
+#endif
+
+static inline struct slave *bond_slave_has_mac(struct bonding *bond,
+ const u8 *mac)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave(bond, tmp, iter)
+ if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
+ return tmp;
+
+ return NULL;
+}
+
+/* Caller must hold rcu_read_lock() for read */
+static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond,
+ const u8 *mac)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave_rcu(bond, tmp, iter)
+ if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
+ return tmp;
+
+ return NULL;
+}
+
+/* Caller must hold rcu_read_lock() for read */
+static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+ struct netdev_hw_addr *ha;
+
+ bond_for_each_slave_rcu(bond, tmp, iter)
+ if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
+ return true;
+
+ if (netdev_uc_empty(bond->dev))
+ return false;
+
+ netdev_for_each_uc_addr(ha, bond->dev)
+ if (ether_addr_equal_64bits(mac, ha->addr))
+ return true;
+
+ return false;
+}
+
+/* Check if the ip is present in arp ip list, or first free slot if ip == 0
+ * Returns -1 if not found, index if found
+ */
+static inline int bond_get_targets_ip(__be32 *targets, __be32 ip)
+{
+ int i;
+
+ for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
+ if (targets[i] == ip)
+ return i;
+ else if (targets[i] == 0)
+ break;
+
+ return -1;
+}
+
+/* exported from bond_main.c */
+extern int bond_net_id;
+extern const struct bond_parm_tbl bond_lacp_tbl[];
+extern const struct bond_parm_tbl xmit_hashtype_tbl[];
+extern const struct bond_parm_tbl arp_validate_tbl[];
+extern const struct bond_parm_tbl arp_all_targets_tbl[];
+extern const struct bond_parm_tbl fail_over_mac_tbl[];
+extern const struct bond_parm_tbl pri_reselect_tbl[];
+extern struct bond_parm_tbl ad_select_tbl[];
+
+/* exported from bond_netlink.c */
+extern struct rtnl_link_ops bond_link_ops;
+
+static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb)
+{
+ atomic_long_inc(&dev->tx_dropped);
+ dev_kfree_skb_any(skb);
+}
+
+#endif /* _NET_BONDING_H */
--
cgit v1.2.1
From d74bcaaeb66826192c9e361cbfe8fd1ffaccf74e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 9 Nov 2014 17:00:59 +0100
Subject: ASoC: wm5102: Move ultrasonic response settings lock to the driver
level
The wm5102 driver currently uses the snd_soc_codec mutex to protect its
ultrasonic response settings from concurrent access. This patch moves this
lock to the driver level. This will allow us to eventually remove the
snd_soc_codec mutex.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/mfd/arizona/core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h
index f34723f7663c..910e3aa1e965 100644
--- a/include/linux/mfd/arizona/core.h
+++ b/include/linux/mfd/arizona/core.h
@@ -141,6 +141,7 @@ struct arizona {
uint16_t dac_comp_coeff;
uint8_t dac_comp_enabled;
+ struct mutex dac_comp_lock;
};
int arizona_clk32k_enable(struct arizona *arizona);
--
cgit v1.2.1
From bd6b87c104bae49816808fde5f55a262093e85ed Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 9 Nov 2014 17:01:04 +0100
Subject: ASoC: Remove CODEC mutex
The CODEC mutex is now unused and can be removed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7ba7130037a0..5c91b06864ce 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -780,7 +780,6 @@ struct snd_soc_codec {
struct device *dev;
const struct snd_soc_codec_driver *driver;
- struct mutex mutex;
struct list_head list;
struct list_head card_list;
--
cgit v1.2.1
From cfdf1e1ba5bf55e095cf4bcaa9585c4759f239e8 Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Mon, 10 Nov 2014 11:45:13 -0800
Subject: udptunnel: Add SKB_GSO_UDP_TUNNEL during gro_complete.
When doing GRO processing for UDP tunnels, we never add
SKB_GSO_UDP_TUNNEL to gso_type - only the type of the inner protocol
is added (such as SKB_GSO_TCPV4). The result is that if the packet is
later resegmented we will do GSO but not treat it as a tunnel. This
results in UDP fragmentation of the outer header instead of (i.e.) TCP
segmentation of the inner header as was originally on the wire.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/udp_tunnel.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index a47790bcaa38..2a50a70ef587 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -100,6 +100,15 @@ static inline struct sk_buff *udp_tunnel_handle_offloads(struct sk_buff *skb,
return iptunnel_handle_offloads(skb, udp_csum, type);
}
+static inline void udp_tunnel_gro_complete(struct sk_buff *skb, int nhoff)
+{
+ struct udphdr *uh;
+
+ uh = (struct udphdr *)(skb->data + nhoff - sizeof(struct udphdr));
+ skb_shinfo(skb)->gso_type |= uh->check ?
+ SKB_GSO_UDP_TUNNEL_CSUM : SKB_GSO_UDP_TUNNEL;
+}
+
static inline void udp_tunnel_encap_enable(struct socket *sock)
{
#if IS_ENABLED(CONFIG_IPV6)
--
cgit v1.2.1
From e30f53aad2202b5526c40c36d8eeac8bf290bde5 Mon Sep 17 00:00:00 2001
From: Rabin Vincent <rabin@rab.in>
Date: Mon, 10 Nov 2014 19:46:34 +0100
Subject: tracing: Do not busy wait in buffer splice
On a !PREEMPT kernel, attempting to use trace-cmd results in a soft
lockup:
# trace-cmd record -e raw_syscalls:* -F false
NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [trace-cmd:61]
...
Call Trace:
[<ffffffff8105b580>] ? __wake_up_common+0x90/0x90
[<ffffffff81092e25>] wait_on_pipe+0x35/0x40
[<ffffffff810936e3>] tracing_buffers_splice_read+0x2e3/0x3c0
[<ffffffff81093300>] ? tracing_stats_read+0x2a0/0x2a0
[<ffffffff812d10ab>] ? _raw_spin_unlock+0x2b/0x40
[<ffffffff810dc87b>] ? do_read_fault+0x21b/0x290
[<ffffffff810de56a>] ? handle_mm_fault+0x2ba/0xbd0
[<ffffffff81095c80>] ? trace_event_buffer_lock_reserve+0x40/0x80
[<ffffffff810951e2>] ? trace_buffer_lock_reserve+0x22/0x60
[<ffffffff81095c80>] ? trace_event_buffer_lock_reserve+0x40/0x80
[<ffffffff8112415d>] do_splice_to+0x6d/0x90
[<ffffffff81126971>] SyS_splice+0x7c1/0x800
[<ffffffff812d1edd>] tracesys_phase2+0xd3/0xd8
The problem is this: tracing_buffers_splice_read() calls
ring_buffer_wait() to wait for data in the ring buffers. The buffers
are not empty so ring_buffer_wait() returns immediately. But
tracing_buffers_splice_read() calls ring_buffer_read_page() with full=1,
meaning it only wants to read a full page. When the full page is not
available, tracing_buffers_splice_read() tries to wait again with
ring_buffer_wait(), which again returns immediately, and so on.
Fix this by adding a "full" argument to ring_buffer_wait() which will
make ring_buffer_wait() wait until the writer has left the reader's
page, i.e. until full-page reads will succeed.
Link: http://lkml.kernel.org/r/1415645194-25379-1-git-send-email-rabin@rab.in
Cc: stable@vger.kernel.org # 3.16+
Fixes: b1169cc69ba9 ("tracing: Remove mock up poll wait function")
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ring_buffer.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index 49a4d6f59108..e2c13cd863bd 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -97,7 +97,7 @@ __ring_buffer_alloc(unsigned long size, unsigned flags, struct lock_class_key *k
__ring_buffer_alloc((size), (flags), &__key); \
})
-int ring_buffer_wait(struct ring_buffer *buffer, int cpu);
+int ring_buffer_wait(struct ring_buffer *buffer, int cpu, bool full);
int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu,
struct file *filp, poll_table *poll_table);
--
cgit v1.2.1
From 73b3a6657a88ef5348a0d69c9a8107d6f01ae862 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Mon, 3 Nov 2014 12:09:52 +0200
Subject: pinctrl: dra: dt-bindings: Fix output pull up/down
For PIN_OUTPUT_PULLUP and PIN_OUTPUT_PULLDOWN we must not set the
PULL_DIS bit which disables the PULLs.
PULL_ENA is a 0 and using it in an OR operation is a NOP, so don't
use it in the PIN_OUTPUT_PULLUP/DOWN macros.
Fixes: 23d9cec07c58 ("pinctrl: dra: dt-bindings: Fix pull enable/disable")
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
include/dt-bindings/pinctrl/dra.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/pinctrl/dra.h b/include/dt-bindings/pinctrl/dra.h
index 3d33794e4f3e..7448edff4723 100644
--- a/include/dt-bindings/pinctrl/dra.h
+++ b/include/dt-bindings/pinctrl/dra.h
@@ -40,8 +40,8 @@
/* Active pin states */
#define PIN_OUTPUT (0 | PULL_DIS)
-#define PIN_OUTPUT_PULLUP (PIN_OUTPUT | PULL_ENA | PULL_UP)
-#define PIN_OUTPUT_PULLDOWN (PIN_OUTPUT | PULL_ENA)
+#define PIN_OUTPUT_PULLUP (PULL_UP)
+#define PIN_OUTPUT_PULLDOWN (0)
#define PIN_INPUT (INPUT_EN | PULL_DIS)
#define PIN_INPUT_SLEW (INPUT_EN | SLEWCONTROL)
#define PIN_INPUT_PULLUP (PULL_ENA | INPUT_EN | PULL_UP)
--
cgit v1.2.1
From 2f35c41f58a978dfa44ffa102249d556caa99eeb Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Date: Mon, 10 Nov 2014 09:29:29 +1030
Subject: module: Replace module_ref with atomic_t refcnt
Replace module_ref per-cpu complex reference counter with
an atomic_t simple refcnt. This is for code simplification.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/module.h | 16 +---------------
include/trace/events/module.h | 2 +-
2 files changed, 2 insertions(+), 16 deletions(-)
(limited to 'include')
diff --git a/include/linux/module.h b/include/linux/module.h
index 71f282a4e307..ebfb0e153c6a 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -210,20 +210,6 @@ enum module_state {
MODULE_STATE_UNFORMED, /* Still setting it up. */
};
-/**
- * struct module_ref - per cpu module reference counts
- * @incs: number of module get on this cpu
- * @decs: number of module put on this cpu
- *
- * We force an alignment on 8 or 16 bytes, so that alloc_percpu()
- * put @incs/@decs in same cache line, with no extra memory cost,
- * since alloc_percpu() is fine grained.
- */
-struct module_ref {
- unsigned long incs;
- unsigned long decs;
-} __attribute((aligned(2 * sizeof(unsigned long))));
-
struct module {
enum module_state state;
@@ -367,7 +353,7 @@ struct module {
/* Destruction function. */
void (*exit)(void);
- struct module_ref __percpu *refptr;
+ atomic_t refcnt;
#endif
#ifdef CONFIG_CONSTRUCTORS
diff --git a/include/trace/events/module.h b/include/trace/events/module.h
index 7c5cbfe3fc49..81c4c183d348 100644
--- a/include/trace/events/module.h
+++ b/include/trace/events/module.h
@@ -80,7 +80,7 @@ DECLARE_EVENT_CLASS(module_refcnt,
TP_fast_assign(
__entry->ip = ip;
- __entry->refcnt = __this_cpu_read(mod->refptr->incs) - __this_cpu_read(mod->refptr->decs);
+ __entry->refcnt = atomic_read(&mod->refcnt);
__assign_str(name, mod->name);
),
--
cgit v1.2.1
From cbd7f8d6825c6900daa9d6f1b363b592ea9ee1fa Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Mon, 10 Nov 2014 09:33:29 +1030
Subject: virtio: Fix comment typo 'CONFIG_S_FAILED'
Without the VIRTIO_ prefix CONFIG_S_FAILED looks like a Kconfig macro.
So use that prefix here too.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/linux/virtio.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 65261a7244fc..abafae783058 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -78,7 +78,7 @@ bool virtqueue_is_broken(struct virtqueue *vq);
/**
* virtio_device - representation of a device using virtio
* @index: unique position on the virtio bus
- * @failed: saved value for CONFIG_S_FAILED bit (for restore)
+ * @failed: saved value for VIRTIO_CONFIG_S_FAILED bit (for restore)
* @config_enabled: configuration change reporting enabled
* @config_change_pending: configuration change reported while disabled
* @config_lock: protects configuration change reporting
--
cgit v1.2.1
From 5a10b7dbf904bfe01bb9fcc6298f7df09eed77d5 Mon Sep 17 00:00:00 2001
From: Raushaniya Maksudova <rmaksudova@parallels.com>
Date: Mon, 10 Nov 2014 09:36:29 +1030
Subject: virtio_balloon: free some memory from balloon on OOM
Excessive virtio_balloon inflation can cause invocation of OOM-killer,
when Linux is under severe memory pressure. Various mechanisms are
responsible for correct virtio_balloon memory management. Nevertheless
it is often the case that these control tools does not have enough time
to react on fast changing memory load. As a result OS runs out of memory
and invokes OOM-killer. The balancing of memory by use of the virtio
balloon should not cause the termination of processes while there are
pages in the balloon. Now there is no way for virtio balloon driver to
free some memory at the last moment before some process will be get
killed by OOM-killer.
This does not provide a security breach as balloon itself is running
inside guest OS and is working in the cooperation with the host. Thus
some improvements from guest side should be considered as normal.
To solve the problem, introduce a virtio_balloon callback which is
expected to be called from the oom notifier call chain in out_of_memory()
function. If virtio balloon could release some memory, it will make
the system to return and retry the allocation that forced the out of
memory killer to run.
Allocate virtio feature bit for this: it is not set by default,
the the guest will not deflate virtio balloon on OOM without explicit
permission from host.
Signed-off-by: Raushaniya Maksudova <rmaksudova@parallels.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
include/uapi/linux/virtio_balloon.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_balloon.h b/include/uapi/linux/virtio_balloon.h
index 5e26f61b5df5..be40f7059e93 100644
--- a/include/uapi/linux/virtio_balloon.h
+++ b/include/uapi/linux/virtio_balloon.h
@@ -31,6 +31,7 @@
/* The feature bitmap for virtio balloon */
#define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */
#define VIRTIO_BALLOON_F_STATS_VQ 1 /* Memory Stats virtqueue */
+#define VIRTIO_BALLOON_F_DEFLATE_ON_OOM 2 /* Deflate balloon on OOM */
/* Size of a PFN in the balloon interface. */
#define VIRTIO_BALLOON_PFN_SHIFT 12
--
cgit v1.2.1
From ddcecf6b6ae7b91c8735e52f50cd403ee9cbe298 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 10 Nov 2014 17:24:26 +0100
Subject: ALSA: Fix invalid kerneldoc markers
They are no real kerneldoc comments, so drop such markers.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/uapi/sound/hdspm.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/uapi/sound/hdspm.h b/include/uapi/sound/hdspm.h
index d956c3593f65..b357f1a5e29c 100644
--- a/include/uapi/sound/hdspm.h
+++ b/include/uapi/sound/hdspm.h
@@ -74,14 +74,14 @@ struct hdspm_config {
#define SNDRV_HDSPM_IOCTL_GET_CONFIG \
_IOR('H', 0x41, struct hdspm_config)
-/**
+/*
* If there's a TCO (TimeCode Option) board installed,
* there are further options and status data available.
* The hdspm_ltc structure contains the current SMPTE
* timecode and some status information and can be
* obtained via SNDRV_HDSPM_IOCTL_GET_LTC or in the
* hdspm_status struct.
- **/
+ */
enum hdspm_ltc_format {
format_invalid,
@@ -113,11 +113,11 @@ struct hdspm_ltc {
#define SNDRV_HDSPM_IOCTL_GET_LTC _IOR('H', 0x46, struct hdspm_ltc)
-/**
+/*
* The status data reflects the device's current state
* as determined by the card's configuration and
* connection status.
- **/
+ */
enum hdspm_sync {
hdspm_sync_no_lock = 0,
@@ -171,9 +171,9 @@ struct hdspm_status {
#define SNDRV_HDSPM_IOCTL_GET_STATUS \
_IOR('H', 0x47, struct hdspm_status)
-/**
+/*
* Get information about the card and its add-ons.
- **/
+ */
#define HDSPM_ADDON_TCO 1
--
cgit v1.2.1
From 2fbbc96d16009276153fd33823616877dcca30d8 Mon Sep 17 00:00:00 2001
From: Gabriel FERNANDEZ <gabriel.fernandez@st.com>
Date: Tue, 4 Nov 2014 11:51:18 +0100
Subject: phy: Add PHY header file for DT x Driver defines
This provides the shared header file which will be reference from both
PHY driver and its associated Device Tree node(s).
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
---
include/dt-bindings/phy/phy.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
create mode 100644 include/dt-bindings/phy/phy.h
(limited to 'include')
diff --git a/include/dt-bindings/phy/phy.h b/include/dt-bindings/phy/phy.h
new file mode 100644
index 000000000000..e8c6a3f04b85
--- /dev/null
+++ b/include/dt-bindings/phy/phy.h
@@ -0,0 +1,18 @@
+/*
+ *
+ * This header provides constants for the phy framework
+ *
+ * Copyright (C) 2014 STMicroelectronics
+ * Author: Gabriel Fernandez <gabriel.fernandez@st.com>
+ * License terms: GNU General Public License (GPL), version 2
+ */
+
+#ifndef _DT_BINDINGS_PHY
+#define _DT_BINDINGS_PHY
+
+#define PHY_TYPE_SATA 1
+#define PHY_TYPE_PCIE 2
+#define PHY_TYPE_USB2 3
+#define PHY_TYPE_USB3 4
+
+#endif /* _DT_BINDINGS_PHY */
--
cgit v1.2.1
From 7041bc997db6a29af74499938987160bbe6654ef Mon Sep 17 00:00:00 2001
From: Prabhakar Lad <prabhakar.csengg@gmail.com>
Date: Wed, 22 Oct 2014 18:42:01 -0300
Subject: [media] media: davinci: vpbe: add support for VIDIOC_CREATE_BUFS
this patch adds support for vidioc_create_bufs. Along side
remove unneeded member numbuffers.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/davinci/vpbe_display.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/media/davinci/vpbe_display.h b/include/media/davinci/vpbe_display.h
index 163a02b92c04..fa0247ad815f 100644
--- a/include/media/davinci/vpbe_display.h
+++ b/include/media/davinci/vpbe_display.h
@@ -70,8 +70,6 @@ struct vpbe_disp_buffer {
/* vpbe display object structure */
struct vpbe_layer {
- /* number of buffers in fbuffers */
- unsigned int numbuffers;
/* Pointer to the vpbe_display */
struct vpbe_display *disp_dev;
/* Pointer pointing to current v4l2_buffer */
--
cgit v1.2.1
From 15a42a9bc9ffcff4315a7154313db08c6bf9ef11 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <anton.vorontsov@linaro.org>
Date: Thu, 6 Nov 2014 14:36:41 +0000
Subject: kdb: Rename kdb_repeat_t to kdb_cmdflags_t, cmd_repeat to cmd_flags
We're about to add more options for command behaviour, so let's expand
the meaning of kdb_repeat_t.
So far we just do various renames, there should be no functional changes.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
---
include/linux/kdb.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index 290db1269c4c..e650f79aa414 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -17,7 +17,7 @@ typedef enum {
KDB_REPEAT_NONE = 0, /* Do not repeat this command */
KDB_REPEAT_NO_ARGS, /* Repeat the command without arguments */
KDB_REPEAT_WITH_ARGS, /* Repeat the command including its arguments */
-} kdb_repeat_t;
+} kdb_cmdflags_t;
typedef int (*kdb_func_t)(int, const char **);
@@ -147,7 +147,7 @@ static inline const char *kdb_walk_kallsyms(loff_t *pos)
/* Dynamic kdb shell command registration */
extern int kdb_register(char *, kdb_func_t, char *, char *, short);
extern int kdb_register_repeat(char *, kdb_func_t, char *, char *,
- short, kdb_repeat_t);
+ short, kdb_cmdflags_t);
extern int kdb_unregister(char *);
#else /* ! CONFIG_KGDB_KDB */
static inline __printf(1, 2) int kdb_printf(const char *fmt, ...) { return 0; }
@@ -156,7 +156,7 @@ static inline int kdb_register(char *cmd, kdb_func_t func, char *usage,
char *help, short minlen) { return 0; }
static inline int kdb_register_repeat(char *cmd, kdb_func_t func, char *usage,
char *help, short minlen,
- kdb_repeat_t repeat) { return 0; }
+ kdb_cmdflags_t flags) { return 0; }
static inline int kdb_unregister(char *cmd) { return 0; }
#endif /* CONFIG_KGDB_KDB */
enum {
--
cgit v1.2.1
From 42c884c10b775ce04f8aabe488820134625c893e Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <anton.vorontsov@linaro.org>
Date: Thu, 6 Nov 2014 14:36:42 +0000
Subject: kdb: Rename kdb_register_repeat() to kdb_register_flags()
We're about to add more options for commands behaviour, so let's give
a more generic name to the low-level kdb command registration function.
There are just various renames, no functional changes.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
---
include/linux/kdb.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index e650f79aa414..32d2f407981d 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -146,17 +146,17 @@ static inline const char *kdb_walk_kallsyms(loff_t *pos)
/* Dynamic kdb shell command registration */
extern int kdb_register(char *, kdb_func_t, char *, char *, short);
-extern int kdb_register_repeat(char *, kdb_func_t, char *, char *,
- short, kdb_cmdflags_t);
+extern int kdb_register_flags(char *, kdb_func_t, char *, char *,
+ short, kdb_cmdflags_t);
extern int kdb_unregister(char *);
#else /* ! CONFIG_KGDB_KDB */
static inline __printf(1, 2) int kdb_printf(const char *fmt, ...) { return 0; }
static inline void kdb_init(int level) {}
static inline int kdb_register(char *cmd, kdb_func_t func, char *usage,
char *help, short minlen) { return 0; }
-static inline int kdb_register_repeat(char *cmd, kdb_func_t func, char *usage,
- char *help, short minlen,
- kdb_cmdflags_t flags) { return 0; }
+static inline int kdb_register_flags(char *cmd, kdb_func_t func, char *usage,
+ char *help, short minlen,
+ kdb_cmdflags_t flags) { return 0; }
static inline int kdb_unregister(char *cmd) { return 0; }
#endif /* CONFIG_KGDB_KDB */
enum {
--
cgit v1.2.1
From 04bb171e7aa99dee0c92e772e4f66f8d5c1b4081 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <anton.vorontsov@linaro.org>
Date: Thu, 6 Nov 2014 14:36:43 +0000
Subject: kdb: Use KDB_REPEAT_* values as flags
The actual values of KDB_REPEAT_* enum values and overall logic stayed
the same, but we now treat the values as flags.
This makes it possible to add other flags and combine them, plus makes
the code a lot simpler and shorter. But functionality-wise, there should
be no changes.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
---
include/linux/kdb.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index 32d2f407981d..90aed7c31f0d 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -15,8 +15,8 @@
typedef enum {
KDB_REPEAT_NONE = 0, /* Do not repeat this command */
- KDB_REPEAT_NO_ARGS, /* Repeat the command without arguments */
- KDB_REPEAT_WITH_ARGS, /* Repeat the command including its arguments */
+ KDB_REPEAT_NO_ARGS = 0x1, /* Repeat the command w/o arguments */
+ KDB_REPEAT_WITH_ARGS = 0x2, /* Repeat the command w/ its arguments */
} kdb_cmdflags_t;
typedef int (*kdb_func_t)(int, const char **);
--
cgit v1.2.1
From e8ab24d9b0173ada3eeed31d7d7f982228efc2c5 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <anton.vorontsov@linaro.org>
Date: Thu, 6 Nov 2014 14:36:44 +0000
Subject: kdb: Remove KDB_REPEAT_NONE flag
Since we now treat KDB_REPEAT_* as flags, there is no need to
pass KDB_REPEAT_NONE. It's just the default behaviour when no
flags are specified.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
---
include/linux/kdb.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index 90aed7c31f0d..39b44b37c8dc 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -14,7 +14,6 @@
*/
typedef enum {
- KDB_REPEAT_NONE = 0, /* Do not repeat this command */
KDB_REPEAT_NO_ARGS = 0x1, /* Repeat the command w/o arguments */
KDB_REPEAT_WITH_ARGS = 0x2, /* Repeat the command w/ its arguments */
} kdb_cmdflags_t;
--
cgit v1.2.1
From 9452e977ac17caf9f98a91b33d5e3c3357258c64 Mon Sep 17 00:00:00 2001
From: Daniel Thompson <daniel.thompson@linaro.org>
Date: Thu, 6 Nov 2014 14:36:45 +0000
Subject: kdb: Categorize kdb commands (similar to SysRq categorization)
This patch introduces several new flags to collect kdb commands into
groups (later allowing them to be optionally disabled).
This follows similar prior art to enable/disable magic sysrq
commands.
The commands have been categorized as follows:
Always on: go (w/o args), env, set, help, ?, cpu (w/o args), sr,
dmesg, disable_nmi, defcmd, summary, grephelp
Mem read: md, mdr, mdp, mds, ef, bt (with args), per_cpu
Mem write: mm
Reg read: rd
Reg write: go (with args), rm
Inspect: bt (w/o args), btp, bta, btc, btt, ps, pid, lsmod
Flow ctrl: bp, bl, bph, bc, be, bd, ss
Signal: kill
Reboot: reboot
All: cpu, kgdb, (and all of the above), nmi_console
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
---
include/linux/kdb.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 46 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index 39b44b37c8dc..f1fe36185c17 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -13,9 +13,53 @@
* Copyright (C) 2009 Jason Wessel <jason.wessel@windriver.com>
*/
+/* Shifted versions of the command enable bits are be used if the command
+ * has no arguments (see kdb_check_flags). This allows commands, such as
+ * go, to have different permissions depending upon whether it is called
+ * with an argument.
+ */
+#define KDB_ENABLE_NO_ARGS_SHIFT 10
+
typedef enum {
- KDB_REPEAT_NO_ARGS = 0x1, /* Repeat the command w/o arguments */
- KDB_REPEAT_WITH_ARGS = 0x2, /* Repeat the command w/ its arguments */
+ KDB_ENABLE_ALL = (1 << 0), /* Enable everything */
+ KDB_ENABLE_MEM_READ = (1 << 1),
+ KDB_ENABLE_MEM_WRITE = (1 << 2),
+ KDB_ENABLE_REG_READ = (1 << 3),
+ KDB_ENABLE_REG_WRITE = (1 << 4),
+ KDB_ENABLE_INSPECT = (1 << 5),
+ KDB_ENABLE_FLOW_CTRL = (1 << 6),
+ KDB_ENABLE_SIGNAL = (1 << 7),
+ KDB_ENABLE_REBOOT = (1 << 8),
+ /* User exposed values stop here, all remaining flags are
+ * exclusively used to describe a commands behaviour.
+ */
+
+ KDB_ENABLE_ALWAYS_SAFE = (1 << 9),
+ KDB_ENABLE_MASK = (1 << KDB_ENABLE_NO_ARGS_SHIFT) - 1,
+
+ KDB_ENABLE_ALL_NO_ARGS = KDB_ENABLE_ALL << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_MEM_READ_NO_ARGS = KDB_ENABLE_MEM_READ
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_MEM_WRITE_NO_ARGS = KDB_ENABLE_MEM_WRITE
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_REG_READ_NO_ARGS = KDB_ENABLE_REG_READ
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_REG_WRITE_NO_ARGS = KDB_ENABLE_REG_WRITE
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_INSPECT_NO_ARGS = KDB_ENABLE_INSPECT
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_FLOW_CTRL_NO_ARGS = KDB_ENABLE_FLOW_CTRL
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_SIGNAL_NO_ARGS = KDB_ENABLE_SIGNAL
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_REBOOT_NO_ARGS = KDB_ENABLE_REBOOT
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_ALWAYS_SAFE_NO_ARGS = KDB_ENABLE_ALWAYS_SAFE
+ << KDB_ENABLE_NO_ARGS_SHIFT,
+ KDB_ENABLE_MASK_NO_ARGS = KDB_ENABLE_MASK << KDB_ENABLE_NO_ARGS_SHIFT,
+
+ KDB_REPEAT_NO_ARGS = 0x40000000, /* Repeat the command w/o arguments */
+ KDB_REPEAT_WITH_ARGS = 0x80000000, /* Repeat the command with args */
} kdb_cmdflags_t;
typedef int (*kdb_func_t)(int, const char **);
--
cgit v1.2.1
From 420c2b1b0df84f5956036b5185cc1e11d247817d Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <anton.vorontsov@linaro.org>
Date: Thu, 6 Nov 2014 14:36:46 +0000
Subject: kdb: Add enable mask for groups of commands
Currently all kdb commands are enabled whenever kdb is deployed. This
makes it difficult to deploy kdb to help debug certain types of
systems.
Android phones provide one example; the FIQ debugger found on some
Android devices has a deliberately weak set of commands to allow the
debugger to enabled very late in the production cycle.
Certain kiosk environments offer another interesting case where an
engineer might wish to probe the system state using passive inspection
commands without providing sufficient power for a passer by to root it.
Without any restrictions, obtaining the root rights via KDB is a matter of
a few commands, and works everywhere. For example, log in as a normal
user:
cbou:~$ id
uid=1001(cbou) gid=1001(cbou) groups=1001(cbou)
Now enter KDB (for example via sysrq):
Entering kdb (current=0xffff8800065bc740, pid 920) due to Keyboard Entry
kdb> ps
23 sleeping system daemon (state M) processes suppressed,
use 'ps A' to see all.
Task Addr Pid Parent [*] cpu State Thread Command
0xffff8800065bc740 920 919 1 0 R 0xffff8800065bca20 *bash
0xffff880007078000 1 0 0 0 S 0xffff8800070782e0 init
[...snip...]
0xffff8800065be3c0 918 1 0 0 S 0xffff8800065be6a0 getty
0xffff8800065b9c80 919 1 0 0 S 0xffff8800065b9f60 login
0xffff8800065bc740 920 919 1 0 R 0xffff8800065bca20 *bash
All we need is the offset of cred pointers. We can look up the offset in
the distro's kernel source, but it is unnecessary. We can just start
dumping init's task_struct, until we see the process name:
kdb> md 0xffff880007078000
0xffff880007078000 0000000000000001 ffff88000703c000 ................
0xffff880007078010 0040210000000002 0000000000000000 .....!@.........
[...snip...]
0xffff8800070782b0 ffff8800073e0580 ffff8800073e0580 ..>.......>.....
0xffff8800070782c0 0000000074696e69 0000000000000000 init............
^ Here, 'init'. Creds are just above it, so the offset is 0x02b0.
Now we set up init's creds for our non-privileged shell:
kdb> mm 0xffff8800065bc740+0x02b0 0xffff8800073e0580
0xffff8800065bc9f0 = 0xffff8800073e0580
kdb> mm 0xffff8800065bc740+0x02b8 0xffff8800073e0580
0xffff8800065bc9f8 = 0xffff8800073e0580
And thus gaining the root:
kdb> go
cbou:~$ id
uid=0(root) gid=0(root) groups=0(root)
cbou:~$ bash
root:~#
p.s. No distro enables kdb by default (although, with a nice KDB-over-KMS
feature availability, I would expect at least some would enable it), so
it's not actually some kind of a major issue.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
---
include/linux/kdb.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index f1fe36185c17..75ae2e2631fc 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -105,6 +105,7 @@ extern atomic_t kdb_event;
#define KDB_BADLENGTH (-19)
#define KDB_NOBP (-20)
#define KDB_BADADDR (-21)
+#define KDB_NOPERM (-22)
/*
* kdb_diemsg
--
cgit v1.2.1
From 4fd3279b48605ae3ea509b9b2c02e46aa0975930 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 24 Oct 2014 17:56:04 -0400
Subject: ftrace: Add more information to ftrace_bug() output
With the introduction of the dynamic trampolines, it is useful that if
things go wrong that ftrace_bug() produces more information about what
the current state is. This can help debug issues that may arise.
Ftrace has lots of checks to make sure that the state of the system it
touchs is exactly what it expects it to be. When it detects an abnormality
it calls ftrace_bug() and disables itself to prevent any further damage.
It is crucial that ftrace_bug() produces sufficient information that
can be used to debug the situation.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Borislav Petkov <bp@suse.de>
Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 06e3ca5a5083..619e37cc17fd 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -263,7 +263,9 @@ struct ftrace_func_command {
int ftrace_arch_code_modify_prepare(void);
int ftrace_arch_code_modify_post_process(void);
-void ftrace_bug(int err, unsigned long ip);
+struct dyn_ftrace;
+
+void ftrace_bug(int err, struct dyn_ftrace *rec);
struct seq_file;
--
cgit v1.2.1
From 2c8c56e15df3d4c2af3d656e44feb18789f75837 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 11 Nov 2014 05:54:28 -0800
Subject: net: introduce SO_INCOMING_CPU
Alternative to RPS/RFS is to use hardware support for multiple
queues.
Then split a set of million of sockets into worker threads, each
one using epoll() to manage events on its own socket pool.
Ideally, we want one thread per RX/TX queue/cpu, but we have no way to
know after accept() or connect() on which queue/cpu a socket is managed.
We normally use one cpu per RX queue (IRQ smp_affinity being properly
set), so remembering on socket structure which cpu delivered last packet
is enough to solve the problem.
After accept(), connect(), or even file descriptor passing around
processes, applications can use :
int cpu;
socklen_t len = sizeof(cpu);
getsockopt(fd, SOL_SOCKET, SO_INCOMING_CPU, &cpu, &len);
And use this information to put the socket into the right silo
for optimal performance, as all networking stack should run
on the appropriate cpu, without need to send IPI (RPS/RFS).
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sock.h | 12 ++++++++++++
include/uapi/asm-generic/socket.h | 2 ++
2 files changed, 14 insertions(+)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index 6767d75ecb17..7789b59c0c40 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -273,6 +273,7 @@ struct cg_proto;
* @sk_rcvtimeo: %SO_RCVTIMEO setting
* @sk_sndtimeo: %SO_SNDTIMEO setting
* @sk_rxhash: flow hash received from netif layer
+ * @sk_incoming_cpu: record cpu processing incoming packets
* @sk_txhash: computed flow hash for use on transmit
* @sk_filter: socket filtering instructions
* @sk_protinfo: private area, net family specific, when not using slab
@@ -350,6 +351,12 @@ struct sock {
#ifdef CONFIG_RPS
__u32 sk_rxhash;
#endif
+ u16 sk_incoming_cpu;
+ /* 16bit hole
+ * Warned : sk_incoming_cpu can be set from softirq,
+ * Do not use this hole without fully understanding possible issues.
+ */
+
__u32 sk_txhash;
#ifdef CONFIG_NET_RX_BUSY_POLL
unsigned int sk_napi_id;
@@ -833,6 +840,11 @@ static inline int sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
return sk->sk_backlog_rcv(sk, skb);
}
+static inline void sk_incoming_cpu_update(struct sock *sk)
+{
+ sk->sk_incoming_cpu = raw_smp_processor_id();
+}
+
static inline void sock_rps_record_flow_hash(__u32 hash)
{
#ifdef CONFIG_RPS
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index ea0796bdcf88..f541ccefd4ac 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -82,4 +82,6 @@
#define SO_BPF_EXTENSIONS 48
+#define SO_INCOMING_CPU 49
+
#endif /* __ASM_GENERIC_SOCKET_H */
--
cgit v1.2.1
From f8c6455bb04b944edb69e9b074e28efee2c56bdd Mon Sep 17 00:00:00 2001
From: Shani Michaeli <shanim@mellanox.com>
Date: Sun, 9 Nov 2014 13:51:53 +0200
Subject: net/mlx4_en: Extend checksum offloading by CHECKSUM COMPLETE
When processing received traffic, pass CHECKSUM_COMPLETE status to the
stack, with calculated checksum for non TCP/UDP packets (such
as GRE or ICMP).
Although the stack expects checksum which doesn't include the pseudo
header, the HW adds it. To address that, we are subtracting the pseudo
header checksum from the checksum value provided by the HW.
In the IPv6 case, we also compute/add the IP header checksum which
is not added by the HW for such packets.
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 5cc5eac47d1b..3d9bff00f24a 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -497,6 +497,7 @@ struct mlx4_caps {
u16 hca_core_clock;
u64 phys_port_id[MLX4_MAX_PORTS + 1];
int tunnel_offload_mode;
+ u8 rx_checksum_flags_port[MLX4_MAX_PORTS + 1];
};
struct mlx4_buf_list {
--
cgit v1.2.1
From ba7a46f16dd29f93303daeb1fee8af316c5a07f4 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 11 Nov 2014 10:59:17 -0800
Subject: net: Convert LIMIT_NETDEBUG to net_dbg_ratelimited
Use the more common dynamic_debug capable net_dbg_ratelimited
and remove the LIMIT_NETDEBUG macro.
All messages are still ratelimited.
Some KERN_<LEVEL> uses are changed to KERN_DEBUG.
This may have some negative impact on messages that were
emitted at KERN_INFO that are not not enabled at all unless
DEBUG is defined or dynamic_debug is enabled. Even so,
these messages are now _not_ emitted by default.
This also eliminates the use of the net_msg_warn sysctl
"/proc/sys/net/core/warnings". For backward compatibility,
the sysctl is not removed, but it has no function. The extern
declaration of net_msg_warn is removed from sock.h and made
static in net/core/sysctl_net_core.c
Miscellanea:
o Update the sysctl documentation
o Remove the embedded uses of pr_fmt
o Coalesce format fragments
o Realign arguments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sock.h | 7 -------
include/net/udplite.h | 6 +++---
2 files changed, 3 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index 7789b59c0c40..83a669f83bae 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2288,13 +2288,6 @@ bool sk_ns_capable(const struct sock *sk,
bool sk_capable(const struct sock *sk, int cap);
bool sk_net_capable(const struct sock *sk, int cap);
-/*
- * Enable debug/info messages
- */
-extern int net_msg_warn;
-#define LIMIT_NETDEBUG(fmt, args...) \
- do { if (net_msg_warn && net_ratelimit()) printk(fmt,##args); } while(0)
-
extern __u32 sysctl_wmem_max;
extern __u32 sysctl_rmem_max;
diff --git a/include/net/udplite.h b/include/net/udplite.h
index 2caadabcd07b..9a28a5179400 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -40,7 +40,7 @@ static inline int udplite_checksum_init(struct sk_buff *skb, struct udphdr *uh)
* checksum. UDP-Lite (like IPv6) mandates checksums, hence packets
* with a zero checksum field are illegal. */
if (uh->check == 0) {
- LIMIT_NETDEBUG(KERN_DEBUG "UDPLite: zeroed checksum field\n");
+ net_dbg_ratelimited("UDPLite: zeroed checksum field\n");
return 1;
}
@@ -52,8 +52,8 @@ static inline int udplite_checksum_init(struct sk_buff *skb, struct udphdr *uh)
/*
* Coverage length violates RFC 3828: log and discard silently.
*/
- LIMIT_NETDEBUG(KERN_DEBUG "UDPLite: bad csum coverage %d/%d\n",
- cscov, skb->len);
+ net_dbg_ratelimited("UDPLite: bad csum coverage %d/%d\n",
+ cscov, skb->len);
return 1;
} else if (cscov < skb->len) {
--
cgit v1.2.1
From d7480fd3b1738a8eae6a76098b17af318cf9b9cc Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Mon, 10 Nov 2014 15:59:36 -0800
Subject: neigh: remove dynamic neigh table registration support
Currently there are only three neigh tables in the whole kernel:
arp table, ndisc table and decnet neigh table. What's more,
we don't support registering multiple tables per family.
Therefore we can just make these tables statically built-in.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/neighbour.h | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index dedfb188b1a7..eb070b3674a1 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -220,6 +220,13 @@ struct neigh_table {
struct pneigh_entry **phash_buckets;
};
+enum {
+ NEIGH_ARP_TABLE = 0,
+ NEIGH_ND_TABLE = 1,
+ NEIGH_DN_TABLE = 2,
+ NEIGH_NR_TABLES,
+};
+
static inline int neigh_parms_family(struct neigh_parms *p)
{
return p->tbl->family;
@@ -240,8 +247,8 @@ static inline void *neighbour_priv(const struct neighbour *n)
#define NEIGH_UPDATE_F_ISROUTER 0x40000000
#define NEIGH_UPDATE_F_ADMIN 0x80000000
-void neigh_table_init(struct neigh_table *tbl);
-int neigh_table_clear(struct neigh_table *tbl);
+void neigh_table_init(int index, struct neigh_table *tbl);
+int neigh_table_clear(int index, struct neigh_table *tbl);
struct neighbour *neigh_lookup(struct neigh_table *tbl, const void *pkey,
struct net_device *dev);
struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, struct net *net,
--
cgit v1.2.1
From d65c4e4e0aeb699e984bd4b382efffab418aa359 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 11 Nov 2014 13:13:41 -0800
Subject: irda: Simplify IRDA logging macros
These are the same as net_<level>_ratelimited, so
use the more common style in the macro definition.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/irda/irda.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/irda/irda.h b/include/net/irda/irda.h
index a059465101ff..42aa054aa67f 100644
--- a/include/net/irda/irda.h
+++ b/include/net/irda/irda.h
@@ -77,9 +77,9 @@ do { if(!(expr)) { \
#define IRDA_ASSERT_LABEL(label)
#endif /* CONFIG_IRDA_DEBUG */
-#define IRDA_WARNING(args...) do { if (net_ratelimit()) printk(KERN_WARNING args); } while (0)
-#define IRDA_MESSAGE(args...) do { if (net_ratelimit()) printk(KERN_INFO args); } while (0)
-#define IRDA_ERROR(args...) do { if (net_ratelimit()) printk(KERN_ERR args); } while (0)
+#define IRDA_ERROR net_err_ratelimited
+#define IRDA_WARNING net_warn_ratelimited
+#define IRDA_MESSAGE net_info_ratelimited
/*
* Magic numbers used by Linux-IrDA. Random numbers which must be unique to
--
cgit v1.2.1
From 67732cd34382066ae5df313b6dad65ab14b9735f Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Tue, 11 Nov 2014 11:07:08 +0100
Subject: PM / Domains: Fix initial default state of the need_restore flag
The initial state of the device's need_restore flag should'nt depend on
the current state of the PM domain. For example it should be perfectly
valid to attach an inactive device to a powered PM domain.
The pm_genpd_dev_need_restore() API allow us to update the need_restore
flag to somewhat cope with such scenarios. Typically that should have
been done from drivers/buses ->probe() since it's those that put the
requirements on the value of the need_restore flag.
Until recently, the Exynos SOCs were the only user of the
pm_genpd_dev_need_restore() API, though invoking it from a centralized
location while adding devices to their PM domains.
Due to that Exynos now have swithed to the generic OF-based PM domain
look-up, it's no longer possible to invoke the API from a centralized
location. The reason is because devices are now added to their PM
domains during the probe sequence.
Commit "ARM: exynos: Move to generic PM domain DT bindings"
did the switch for Exynos to the generic OF-based PM domain look-up,
but it also removed the call to pm_genpd_dev_need_restore(). This
caused a regression for some of the Exynos drivers.
To handle things more properly in the generic PM domain, let's change
the default initial value of the need_restore flag to reflect that the
state is unknown. As soon as some of the runtime PM callbacks gets
invoked, update the initial value accordingly.
Moreover, since the generic PM domain is verifying that all devices
are both runtime PM enabled and suspended, using pm_runtime_suspended()
while pm_genpd_poweroff() is invoked from the scheduled work, we can be
sure of that the PM domain won't be powering off while having active
devices.
Do note that, the generic PM domain can still only know about active
devices which has been activated through invoking its runtime PM resume
callback. In other words, buses/drivers using pm_runtime_set_active()
during ->probe() will still suffer from a race condition, potentially
probing a device without having its PM domain being powered. That issue
will have to be solved using a different approach.
This a log from the boot regression for Exynos5, which is being fixed in
this patch.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 308 at ../drivers/clk/clk.c:851 clk_disable+0x24/0x30()
Modules linked in:
CPU: 0 PID: 308 Comm: kworker/0:1 Not tainted 3.18.0-rc3-00569-gbd9449f-dirty #10
Workqueue: pm pm_runtime_work
[<c0013c64>] (unwind_backtrace) from [<c0010dec>] (show_stack+0x10/0x14)
[<c0010dec>] (show_stack) from [<c03ee4cc>] (dump_stack+0x70/0xbc)
[<c03ee4cc>] (dump_stack) from [<c0020d34>] (warn_slowpath_common+0x64/0x88)
[<c0020d34>] (warn_slowpath_common) from [<c0020d74>] (warn_slowpath_null+0x1c/0x24)
[<c0020d74>] (warn_slowpath_null) from [<c03107b0>] (clk_disable+0x24/0x30)
[<c03107b0>] (clk_disable) from [<c02cc834>] (gsc_runtime_suspend+0x128/0x160)
[<c02cc834>] (gsc_runtime_suspend) from [<c0249024>] (pm_generic_runtime_suspend+0x2c/0x38)
[<c0249024>] (pm_generic_runtime_suspend) from [<c024f44c>] (pm_genpd_default_save_state+0x2c/0x8c)
[<c024f44c>] (pm_genpd_default_save_state) from [<c024ff2c>] (pm_genpd_poweroff+0x224/0x3ec)
[<c024ff2c>] (pm_genpd_poweroff) from [<c02501b4>] (pm_genpd_runtime_suspend+0x9c/0xcc)
[<c02501b4>] (pm_genpd_runtime_suspend) from [<c024a4f8>] (__rpm_callback+0x2c/0x60)
[<c024a4f8>] (__rpm_callback) from [<c024a54c>] (rpm_callback+0x20/0x74)
[<c024a54c>] (rpm_callback) from [<c024a930>] (rpm_suspend+0xd4/0x43c)
[<c024a930>] (rpm_suspend) from [<c024bbcc>] (pm_runtime_work+0x80/0x90)
[<c024bbcc>] (pm_runtime_work) from [<c0032a9c>] (process_one_work+0x12c/0x314)
[<c0032a9c>] (process_one_work) from [<c0032cf4>] (worker_thread+0x3c/0x4b0)
[<c0032cf4>] (worker_thread) from [<c003747c>] (kthread+0xcc/0xe8)
[<c003747c>] (kthread) from [<c000e738>] (ret_from_fork+0x14/0x3c)
---[ end trace 40cd58bcd6988f12 ]---
Fixes: a4a8c2c4962bb655 (ARM: exynos: Move to generic PM domain DT bindings)
Reported-and-tested0by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index b3ed7766a291..2e0e06daf8c0 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -106,7 +106,7 @@ struct generic_pm_domain_data {
struct notifier_block nb;
struct mutex lock;
unsigned int refcount;
- bool need_restore;
+ int need_restore;
};
#ifdef CONFIG_PM_GENERIC_DOMAINS
--
cgit v1.2.1
From 09626e9d153326ca82568e4e27f2daa53713992e Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Tue, 11 Nov 2014 13:29:42 -0800
Subject: net: kill netif_copy_real_num_queues()
vlan was the only user of netif_copy_real_num_queues(),
but it no longer calls it after
commit 4af429d29b341bb1735f04c2fb960178 ("vlan: lockless transmit path").
So we can just remove it.
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 17 -----------------
1 file changed, 17 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 888d5513fa4a..4a6f770377d3 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2762,23 +2762,6 @@ static inline int netif_set_real_num_rx_queues(struct net_device *dev,
}
#endif
-static inline int netif_copy_real_num_queues(struct net_device *to_dev,
- const struct net_device *from_dev)
-{
- int err;
-
- err = netif_set_real_num_tx_queues(to_dev,
- from_dev->real_num_tx_queues);
- if (err)
- return err;
-#ifdef CONFIG_SYSFS
- return netif_set_real_num_rx_queues(to_dev,
- from_dev->real_num_rx_queues);
-#else
- return 0;
-#endif
-}
-
#ifdef CONFIG_SYSFS
static inline unsigned int get_netdev_rx_queue_index(
struct netdev_rx_queue *queue)
--
cgit v1.2.1
From 85eb92e81801d64686eb78928d500a4c83ee9623 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 1 Nov 2014 16:54:55 +0100
Subject: bcma: make it possible to specify a IRQ num in bcma_core_irq()
This moves bcma_core_irq() to main.c and add a extra parameter with a
number so that we can return different irq number for devices with more
than one.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/linux/bcma/bcma.h | 2 ++
include/linux/bcma/bcma_driver_mips.h | 4 ++--
2 files changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 729f48e6b20b..eb1c6a47b67f 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -447,4 +447,6 @@ extern u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset);
#define BCMA_DMA_TRANSLATION_DMA64_CMT 0x80000000 /* Client Mode Translation for 64-bit DMA */
extern u32 bcma_core_dma_translation(struct bcma_device *core);
+extern unsigned int bcma_core_irq(struct bcma_device *core, int num);
+
#endif /* LINUX_BCMA_H_ */
diff --git a/include/linux/bcma/bcma_driver_mips.h b/include/linux/bcma/bcma_driver_mips.h
index fb61f3fb4ddb..0b3b32aeeb8a 100644
--- a/include/linux/bcma/bcma_driver_mips.h
+++ b/include/linux/bcma/bcma_driver_mips.h
@@ -43,12 +43,12 @@ struct bcma_drv_mips {
extern void bcma_core_mips_init(struct bcma_drv_mips *mcore);
extern void bcma_core_mips_early_init(struct bcma_drv_mips *mcore);
-extern unsigned int bcma_core_irq(struct bcma_device *core);
+extern unsigned int bcma_core_mips_irq(struct bcma_device *dev);
#else
static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { }
static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) { }
-static inline unsigned int bcma_core_irq(struct bcma_device *core)
+static inline unsigned int bcma_core_mips_irq(struct bcma_device *dev)
{
return 0;
}
--
cgit v1.2.1
From 03f56e42d03eb7d0a47e40e9ae72a3ac0afeff08 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 27 Oct 2014 10:44:37 +0800
Subject: Revert "PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()"
The problem fixed by 0e4ccb1505a9 ("PCI: Add x86_msi.msi_mask_irq() and
msix_mask_irq()") has been fixed in a simpler way by a previous commit
("PCI/MSI: Add pci_msi_ignore_mask to prevent writes to MSI/MSI-X Mask
Bits").
The msi_mask_irq() and msix_mask_irq() x86_msi_ops added by 0e4ccb1505a9
are no longer needed, so revert the commit.
default_msi_mask_irq() and default_msix_mask_irq() were added by
0e4ccb1505a9 and are still used by s390, so keep them for now.
[bhelgaas: changelog]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: xen-devel@lists.xenproject.org
---
include/linux/msi.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 86dc501a1534..f6630a53be70 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -22,6 +22,8 @@ void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void read_msi_msg(unsigned int irq, struct msi_msg *msg);
void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg);
void write_msi_msg(unsigned int irq, struct msi_msg *msg);
+u32 __msix_mask_irq(struct msi_desc *desc, u32 flag);
+u32 __msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
struct msi_desc {
struct {
@@ -62,8 +64,8 @@ void arch_restore_msi_irqs(struct pci_dev *dev);
void default_teardown_msi_irqs(struct pci_dev *dev);
void default_restore_msi_irqs(struct pci_dev *dev);
-u32 default_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
-u32 default_msix_mask_irq(struct msi_desc *desc, u32 flag);
+#define default_msi_mask_irq __msi_mask_irq
+#define default_msix_mask_irq __msix_mask_irq
struct msi_chip {
struct module *owner;
--
cgit v1.2.1
From f8338694270224970cbaae7e404517ec39f9c753 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 27 Oct 2014 10:44:38 +0800
Subject: s390/MSI: Use __msi_mask_irq() instead of default_msi_mask_irq()
Now only s390/MSI use default_msi_mask_irq() and default_msix_mask_irq(),
replace them with the common MSI mask IRQ functions __msi_mask_irq() and
__msix_mask_irq(). Remove default_msi_mask_irq() and
default_msix_mask_irq().
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
CC: linux-s390@vger.kernel.org
---
include/linux/msi.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index f6630a53be70..efad12742e45 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -64,8 +64,6 @@ void arch_restore_msi_irqs(struct pci_dev *dev);
void default_teardown_msi_irqs(struct pci_dev *dev);
void default_restore_msi_irqs(struct pci_dev *dev);
-#define default_msi_mask_irq __msi_mask_irq
-#define default_msix_mask_irq __msix_mask_irq
struct msi_chip {
struct module *owner;
--
cgit v1.2.1
From 24119a8829cdaf299294095ec568bf49e863c5a5 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Thu, 30 Oct 2014 17:52:58 +0800
Subject: ACPI / processor: Update the comments in processor.h
In commit 46ba51e (ACPI / processor: Introduce ARCH_MIGHT_HAVE_ACPI_PDC),
acpi_processor_set_pdc() was moved to processor_pdc.c, so update
the comments accordingly.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/processor.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 9b9b6f29bbf3..cbb6cd3a98d7 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -313,11 +313,13 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
#endif /* CONFIG_CPU_FREQ */
/* in processor_core.c */
-void acpi_processor_set_pdc(acpi_handle handle);
int acpi_get_apicid(acpi_handle, int type, u32 acpi_id);
int acpi_map_cpuid(int apic_id, u32 acpi_id);
int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
+/* in processor_pdc.c */
+void acpi_processor_set_pdc(acpi_handle handle);
+
/* in processor_throttling.c */
int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
int acpi_processor_get_throttling_info(struct acpi_processor *pr);
--
cgit v1.2.1
From 6c91023dc35c88d5e6aebe4bfe6f1ed5ec2b84be Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 11 Nov 2014 13:37:30 -0800
Subject: irda: Remove IRDA_<TYPE> logging macros
And use the more common mechanisms directly.
Other miscellanea:
o Coalesce formats
o Add missing newlines
o Realign arguments
o Remove unnecessary OOM message logging as
there's a generic stack dump already on OOM.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/irda/irda.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/net/irda/irda.h b/include/net/irda/irda.h
index 42aa054aa67f..4ff18bdc63df 100644
--- a/include/net/irda/irda.h
+++ b/include/net/irda/irda.h
@@ -77,10 +77,6 @@ do { if(!(expr)) { \
#define IRDA_ASSERT_LABEL(label)
#endif /* CONFIG_IRDA_DEBUG */
-#define IRDA_ERROR net_err_ratelimited
-#define IRDA_WARNING net_warn_ratelimited
-#define IRDA_MESSAGE net_info_ratelimited
-
/*
* Magic numbers used by Linux-IrDA. Random numbers which must be unique to
* give the best protection
--
cgit v1.2.1
From 6322d50d879c7ad150164cedc64015a7817f7b28 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:36:51 +0100
Subject: mac802154: add wpan_phy priv id
This patch adds an unique id for an wpan_phy. This behaviour is mostly
grabbed from wireless stack. This is needed for upcomming patches which
identify the wpan netdev while NETDEV_CHANGENAME in netdev notify function.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index e5570e011116..369515231302 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -42,6 +42,14 @@ struct cfg802154_ops {
struct wpan_phy {
struct mutex pib_lock;
+ /* If multiple wpan_phys are registered and you're handed e.g.
+ * a regular netdev with assigned ieee802154_ptr, you won't
+ * know whether it points to a wpan_phy your driver has registered
+ * or not. Assign this to something global to your driver to
+ * help determine whether you own this wpan_phy or not.
+ */
+ const void *privid;
+
/*
* This is a PIB according to 802.15.4-2011.
* We do not provide timing-related variables, as they
--
cgit v1.2.1
From 9d30a8cf98b2dd132d6e4503718df78ffc1b7f53 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:36:54 +0100
Subject: ieee802154: cleanup cfg802154 intendation
This is patch is cleanup to have a similar indentation like cfg80211
implementation.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 369515231302..8a3edc5edad1 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -35,8 +35,8 @@ struct cfg802154_ops {
struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
const char *name,
int type);
- void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
- struct net_device *dev);
+ void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
+ struct net_device *dev);
};
struct wpan_phy {
--
cgit v1.2.1
From ab0bd561724bf3c09aa80e76ca0a187c6880bc5c Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:36:55 +0100
Subject: ieee820154: add channel set support
This patch adds page and channel setting support to nl802154 framework.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 8a3edc5edad1..391fdb37208d 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -37,6 +37,7 @@ struct cfg802154_ops {
int type);
void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
struct net_device *dev);
+ int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
};
struct wpan_phy {
--
cgit v1.2.1
From 702bf371282f5912fe53f0b247fa2d7df9d7951f Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:36:57 +0100
Subject: ieee820154: add pan_id setting support
This patch adds support for setting pan_id via nl802154 framework.
Adding a comment because setting 0xffff as pan_id seems to be valid
setting. The pan_id 0xffff as source pan is invalid. I am not sure now
about this setting but for the current netlink interface this is an
invalid setting, so we do the same now. Maybe we need to change that
when we have coordinator support and association support.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 2 ++
include/net/cfg802154.h | 2 ++
2 files changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index d043449a079d..d40379876b84 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -30,6 +30,8 @@
#define IEEE802154_MTU 127
#define IEEE802154_MIN_PSDU_LEN 5
+#define IEEE802154_PAN_ID_BROADCAST 0xffff
+
#define IEEE802154_EXTENDED_ADDR_LEN 8
#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 391fdb37208d..d07b0726b285 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -38,6 +38,8 @@ struct cfg802154_ops {
void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
struct net_device *dev);
int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
+ int (*set_pan_id)(struct wpan_phy *wpan_phy,
+ struct wpan_dev *wpan_dev, u16 pan_id);
};
struct wpan_phy {
--
cgit v1.2.1
From 9830c62a0b3d57d9d00880989cfe987f581bc03f Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:36:58 +0100
Subject: ieee820154: add short_addr setting support
This patch adds support for setting short address via nl802154 framework.
Also added a comment because a 0xffff seems to be valid address that we
don't have a short address. This is a valid setting but we need
more checks in upper layers to don't allow this address as source address.
Also the current netlink interface doesn't allow to set the short_addr
to 0xffff. Same for the 0xfffe short address which describes a not
allocated short address.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 2 ++
include/net/cfg802154.h | 2 ++
2 files changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index d40379876b84..ce0f96a55976 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -31,6 +31,8 @@
#define IEEE802154_MIN_PSDU_LEN 5
#define IEEE802154_PAN_ID_BROADCAST 0xffff
+#define IEEE802154_ADDR_SHORT_BROADCAST 0xffff
+#define IEEE802154_ADDR_SHORT_UNSPEC 0xfffe
#define IEEE802154_EXTENDED_ADDR_LEN 8
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index d07b0726b285..e8a4c2b70720 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -40,6 +40,8 @@ struct cfg802154_ops {
int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
int (*set_pan_id)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev, u16 pan_id);
+ int (*set_short_addr)(struct wpan_phy *wpan_phy,
+ struct wpan_dev *wpan_dev, u16 short_addr);
};
struct wpan_phy {
--
cgit v1.2.1
From 656a999e8701c1e3d17040f051d3a080ec6c710c Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:36:59 +0100
Subject: ieee820154: add backoff exponent setting support
This patch adds support for setting backoff exponents via nl802154
framework.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index e8a4c2b70720..27e98d10fb2c 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -42,6 +42,9 @@ struct cfg802154_ops {
struct wpan_dev *wpan_dev, u16 pan_id);
int (*set_short_addr)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev, u16 short_addr);
+ int (*set_backoff_exponent)(struct wpan_phy *wpan_phy,
+ struct wpan_dev *wpan_dev, u8 min_be,
+ u8 max_be);
};
struct wpan_phy {
--
cgit v1.2.1
From a01ba7652cda5602b248efff168450ec658640b8 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:37:01 +0100
Subject: ieee820154: add max csma backoffs setting support
This patch add support for max csma backoffs setting via nl802154
framework.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 27e98d10fb2c..79b9ae0abb3b 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -45,6 +45,9 @@ struct cfg802154_ops {
int (*set_backoff_exponent)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev, u8 min_be,
u8 max_be);
+ int (*set_max_csma_backoffs)(struct wpan_phy *wpan_phy,
+ struct wpan_dev *wpan_dev,
+ u8 max_csma_backoffs);
};
struct wpan_phy {
--
cgit v1.2.1
From 17a3a46bfbf1c2b944812a81b11ffe255a55e9ca Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:37:03 +0100
Subject: ieee820154: add max frame retries setting support
This patch add support for setting mac frame retries setting via
nl802154 framework.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 79b9ae0abb3b..5c3bc12706c2 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -48,6 +48,9 @@ struct cfg802154_ops {
int (*set_max_csma_backoffs)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev,
u8 max_csma_backoffs);
+ int (*set_max_frame_retries)(struct wpan_phy *wpan_phy,
+ struct wpan_dev *wpan_dev,
+ s8 max_frame_retries);
};
struct wpan_phy {
--
cgit v1.2.1
From c8937a1d112b1a948454f4fa2f9b747fee2a3f66 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 03:37:05 +0100
Subject: ieee820154: add lbt setting support
This patch adds support for setting listen before transmit mode via
nl802154 framework.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 5c3bc12706c2..fa0a9e519523 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -51,6 +51,8 @@ struct cfg802154_ops {
int (*set_max_frame_retries)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev,
s8 max_frame_retries);
+ int (*set_lbt_mode)(struct wpan_phy *wpan_phy,
+ struct wpan_dev *wpan_dev, bool mode);
};
struct wpan_phy {
--
cgit v1.2.1
From 71dfda58aaaf4bf6b1bc59f9d8afa635fa1337d4 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@redhat.com>
Date: Tue, 11 Nov 2014 09:26:34 -0800
Subject: net: Add device Rx page allocation function
This patch implements __dev_alloc_pages and __dev_alloc_page. These are
meant to replace the __skb_alloc_pages and __skb_alloc_page functions. The
reason for doing this is that it occurred to me that __skb_alloc_page is
supposed to be passed an sk_buff pointer, but it is NULL in all cases where
it is used. Worse is that in the case of ixgbe it is passed NULL via the
sk_buff pointer in the rx_buffer info structure which means the compiler is
not correctly stripping it out.
The naming for these functions is based on dev_alloc_skb and __dev_alloc_skb.
There was originally a netdev_alloc_page, however that was passed a
net_device pointer and this function is not so I thought it best to follow
that naming scheme since that is the same difference between dev_alloc_skb
and netdev_alloc_skb.
In the case of anything greater than order 0 it is assumed that we want a
compound page so __GFP_COMP is set for all allocations as we expect a
compound page when assigning a page frag.
The other change in this patch is to exploit the behaviors of the page
allocator in how it handles flags. So for example we can always set
__GFP_COMP and __GFP_MEMALLOC since they are ignored if they are not
applicable or are overridden by another flag.
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 103fbe8113f8..2e5221f1ec72 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2184,6 +2184,54 @@ static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,
return __netdev_alloc_skb_ip_align(dev, length, GFP_ATOMIC);
}
+/**
+ * __dev_alloc_pages - allocate page for network Rx
+ * @gfp_mask: allocation priority. Set __GFP_NOMEMALLOC if not for network Rx
+ * @order: size of the allocation
+ *
+ * Allocate a new page.
+ *
+ * %NULL is returned if there is no free memory.
+*/
+static inline struct page *__dev_alloc_pages(gfp_t gfp_mask,
+ unsigned int order)
+{
+ /* This piece of code contains several assumptions.
+ * 1. This is for device Rx, therefor a cold page is preferred.
+ * 2. The expectation is the user wants a compound page.
+ * 3. If requesting a order 0 page it will not be compound
+ * due to the check to see if order has a value in prep_new_page
+ * 4. __GFP_MEMALLOC is ignored if __GFP_NOMEMALLOC is set due to
+ * code in gfp_to_alloc_flags that should be enforcing this.
+ */
+ gfp_mask |= __GFP_COLD | __GFP_COMP | __GFP_MEMALLOC;
+
+ return alloc_pages_node(NUMA_NO_NODE, gfp_mask, order);
+}
+
+static inline struct page *dev_alloc_pages(unsigned int order)
+{
+ return __dev_alloc_pages(GFP_ATOMIC, order);
+}
+
+/**
+ * __dev_alloc_page - allocate a page for network Rx
+ * @gfp_mask: allocation priority. Set __GFP_NOMEMALLOC if not for network Rx
+ *
+ * Allocate a new page.
+ *
+ * %NULL is returned if there is no free memory.
+ */
+static inline struct page *__dev_alloc_page(gfp_t gfp_mask)
+{
+ return __dev_alloc_pages(gfp_mask, 0);
+}
+
+static inline struct page *dev_alloc_page(void)
+{
+ return __dev_alloc_page(GFP_ATOMIC);
+}
+
/**
* __skb_alloc_pages - allocate pages for ps-rx on a skb and preserve pfmemalloc data
* @gfp_mask: alloc_pages_node mask. Set __GFP_NOMEMALLOC if not for network packet RX
--
cgit v1.2.1
From 160d2aba550b23c6a538158511d5adccc400f04c Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@redhat.com>
Date: Tue, 11 Nov 2014 09:27:05 -0800
Subject: net: Remove __skb_alloc_page and __skb_alloc_pages
Remove the two functions which are now dead code.
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 43 -------------------------------------------
1 file changed, 43 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2e5221f1ec72..73c370e615de 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2232,49 +2232,6 @@ static inline struct page *dev_alloc_page(void)
return __dev_alloc_page(GFP_ATOMIC);
}
-/**
- * __skb_alloc_pages - allocate pages for ps-rx on a skb and preserve pfmemalloc data
- * @gfp_mask: alloc_pages_node mask. Set __GFP_NOMEMALLOC if not for network packet RX
- * @skb: skb to set pfmemalloc on if __GFP_MEMALLOC is used
- * @order: size of the allocation
- *
- * Allocate a new page.
- *
- * %NULL is returned if there is no free memory.
-*/
-static inline struct page *__skb_alloc_pages(gfp_t gfp_mask,
- struct sk_buff *skb,
- unsigned int order)
-{
- struct page *page;
-
- gfp_mask |= __GFP_COLD;
-
- if (!(gfp_mask & __GFP_NOMEMALLOC))
- gfp_mask |= __GFP_MEMALLOC;
-
- page = alloc_pages_node(NUMA_NO_NODE, gfp_mask, order);
- if (skb && page && page->pfmemalloc)
- skb->pfmemalloc = true;
-
- return page;
-}
-
-/**
- * __skb_alloc_page - allocate a page for ps-rx for a given skb and preserve pfmemalloc data
- * @gfp_mask: alloc_pages_node mask. Set __GFP_NOMEMALLOC if not for network packet RX
- * @skb: skb to set pfmemalloc on if __GFP_MEMALLOC is used
- *
- * Allocate a new page.
- *
- * %NULL is returned if there is no free memory.
- */
-static inline struct page *__skb_alloc_page(gfp_t gfp_mask,
- struct sk_buff *skb)
-{
- return __skb_alloc_pages(gfp_mask, skb, 0);
-}
-
/**
* skb_propagate_pfmemalloc - Propagate pfmemalloc if skb is allocated after RX page
* @page: The page that was allocated from skb_alloc_page
--
cgit v1.2.1
From 5ee3229c87d396cab3c2dfc335b90320cc4a2f42 Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@gmail.com>
Date: Tue, 11 Nov 2014 19:38:59 -0500
Subject: drm: export atomic wait_for_vblanks helper (v2)
v1: original
v2: danvet's kerneldoc nitpicks
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_atomic_helper.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 67e3c4645ae0..64b4e91b93bc 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -34,6 +34,9 @@ int drm_atomic_helper_commit(struct drm_device *dev,
struct drm_atomic_state *state,
bool async);
+void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
+ struct drm_atomic_state *old_state);
+
void drm_atomic_helper_commit_pre_planes(struct drm_device *dev,
struct drm_atomic_state *state);
void drm_atomic_helper_commit_post_planes(struct drm_device *dev,
--
cgit v1.2.1
From 4d02e2de0e80a786452e70d7f3a20a50641e6620 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 11 Nov 2014 10:12:00 +0100
Subject: drm: Per-plane locking
Turned out to be much simpler on top of my latest atomic stuff than
what I've feared. Some details:
- Drop the modeset_lock_all snakeoil in drm_plane_init. Same
justification as for the equivalent change in drm_crtc_init done in
commit d0fa1af40e784aaf7ebb7ba8a17b229bb3fa4c21
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon Sep 8 09:02:49 2014 +0200
drm: Drop modeset locking from crtc init function
Without these the drm_modeset_lock_init would fall over the exact
same way.
- Since the atomic core code wraps the locking switching it to
per-plane locks was a one-line change.
- For the legacy ioctls add a plane argument to the locking helper so
that we can grab the right plane lock (cursor or primary). Since the
universal cursor plane might not be there, or someone really crazy
might forgoe the primary plane even accept NULL.
- Add some locking WARN_ON to the atomic helpers for good paranoid
measure and to check that it all works out.
Tested on my exynos atomic hackfest with full lockdep checks and ww
backoff injection.
v2: I've forgotten about the load-detect code in i915.
v3: Thierry reported that in latest 3.18-rc vmwgfx doesn't compile any
more due to
commit 21e88620aa21b48d4f62d29275e3e2944a5ea2b5
Author: Rob Clark <robdclark@gmail.com>
Date: Thu Oct 30 13:39:04 2014 -0400
drm/vmwgfx: fix lock breakage
Rebased and fix this up.
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_crtc.h | 2 ++
include/drm/drm_modeset_lock.h | 4 +++-
2 files changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index bc1cc3ce05c4..cbb475654b1c 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -751,6 +751,8 @@ struct drm_plane {
struct drm_device *dev;
struct list_head head;
+ struct drm_modeset_lock mutex;
+
struct drm_mode_object base;
uint32_t possible_crtcs;
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index 28931a23d96c..70595ff565ba 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -127,11 +127,13 @@ void drm_modeset_unlock(struct drm_modeset_lock *lock);
struct drm_device;
struct drm_crtc;
+struct drm_plane;
void drm_modeset_lock_all(struct drm_device *dev);
int __drm_modeset_lock_all(struct drm_device *dev, bool trylock);
void drm_modeset_unlock_all(struct drm_device *dev);
-void drm_modeset_lock_crtc(struct drm_crtc *crtc);
+void drm_modeset_lock_crtc(struct drm_crtc *crtc,
+ struct drm_plane *plane);
void drm_modeset_unlock_crtc(struct drm_crtc *crtc);
void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
struct drm_modeset_acquire_ctx *
--
cgit v1.2.1
From 26cf591e6dfc0d07495b7bcf20a557b316811f00 Mon Sep 17 00:00:00 2001
From: Douglas Gilbert <dgilbert@interlog.com>
Date: Sat, 18 Oct 2014 22:11:21 +0200
Subject: scsi: add SG_SCSI_RESET_NO_ESCALATE flag to SG_SCSI_RESET ioctl
Further to a January 2013 thread titled: "[PATCH] SG_SCSI_RESET ioctl
should only perform requested operation" by Jeremy Linton a patch (v3)
is presented that expands the existing ioctl to include "no_escalate"
versions to the existing resets. This requires no changes to SCSI low
level drivers (LLDs); it adds several more finely tuned reset options
to the user space. For example:
/* This call remains the same, with the same escalating semantics
* if the device (LU) reset fail. That is: on failure to try a
* target reset and if that fails, try a bus reset, and if that fails
* try a host (i.e. LLD) reset. */
val = SG_SCSI_RESET_DEVICE;
res = ioctl(<sg_or_block_fd>, SG_SCSI_RESET, &val);
/* What follows is a new option introduced by this patch series. Only
* a device reset is attempted. If that fails then an appropriate
* error code is provided. N.B. There is no reset escalation. */
val = SG_SCSI_RESET_DEVICE | SG_SCSI_RESET_NO_ESCALATE;
res = ioctl(<sg_or_block_fd>, SG_SCSI_RESET, &val);
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Jeremy Linton <jlinton@tributary.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_eh.h | 5 +++++
include/scsi/sg.h | 5 ++++-
2 files changed, 9 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 06a8790893ef..49af14ad5288 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -62,11 +62,16 @@ extern void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq);
/*
* Reset request from external source
+ * Note: if SCSI_TRY_RESET_DEVICE fails then it will escalate to
+ * SCSI_TRY_RESET_TARGET which if it fails will escalate to
+ * SCSI_TRY_RESET_BUS which if it fails will escalate to SCSI_TRY_RESET_HOST.
+ * To prevent escalation OR with SCSI_TRY_RESET_NO_ESCALATE.
*/
#define SCSI_TRY_RESET_DEVICE 1
#define SCSI_TRY_RESET_BUS 2
#define SCSI_TRY_RESET_HOST 3
#define SCSI_TRY_RESET_TARGET 4
+#define SCSI_TRY_RESET_NO_ESCALATE 0x100 /* OR-ed to prior defines */
extern int scsi_reset_provider(struct scsi_device *, int);
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index 750e5db7c6bf..3afec7032448 100644
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -164,12 +164,15 @@ typedef struct sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */
/* Returns -EBUSY if occupied. 3rd argument pointer to int (see next) */
#define SG_SCSI_RESET 0x2284
-/* Associated values that can be given to SG_SCSI_RESET follow */
+/* Associated values that can be given to SG_SCSI_RESET follow.
+ * SG_SCSI_RESET_NO_ESCALATE may be OR-ed to the _DEVICE, _TARGET, _BUS
+ * or _HOST reset value so only that action is attempted. */
#define SG_SCSI_RESET_NOTHING 0
#define SG_SCSI_RESET_DEVICE 1
#define SG_SCSI_RESET_BUS 2
#define SG_SCSI_RESET_HOST 3
#define SG_SCSI_RESET_TARGET 4
+#define SG_SCSI_RESET_NO_ESCALATE 0x100
/* synchronous SCSI command ioctl, (only in version 3 interface) */
#define SG_IO 0x2285 /* similar effect as write() followed by read() */
--
cgit v1.2.1
From 639ae4d0337ce5bc6f5f6921ecb144841b617c26 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:26:41 +0200
Subject: scsi: remove scsi_cmd_print_sense_hdr()
Unused.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_dbg.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index e89844cc2cd3..5a43a4cd96c6 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -9,8 +9,6 @@ extern void __scsi_print_command(unsigned char *);
extern void scsi_show_extd_sense(unsigned char, unsigned char);
extern void scsi_show_sense_hdr(struct scsi_sense_hdr *);
extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *);
-extern void scsi_cmd_print_sense_hdr(struct scsi_cmnd *, const char *,
- struct scsi_sense_hdr *);
extern void scsi_print_sense(char *, struct scsi_cmnd *);
extern void __scsi_print_sense(const char *name,
const unsigned char *sense_buffer,
--
cgit v1.2.1
From 22e0d994151c3eac183625f8c1400c0c83ac414f Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:26:44 +0200
Subject: scsi: introduce sdev_prefix_printk()
Like scmd_printk(), but the device name is passed in as
a string. Can be used by eg ULDs which do not have access
to the scsi_cmnd structure.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_device.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 27ecee73bd72..0b18a097c1ba 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -244,6 +244,15 @@ struct scsi_dh_data {
#define sdev_dbg(sdev, fmt, a...) \
dev_dbg(&(sdev)->sdev_gendev, fmt, ##a)
+/*
+ * like scmd_printk, but the device name is passed in
+ * as a string pointer
+ */
+#define sdev_prefix_printk(l, sdev, p, fmt, a...) \
+ (p) ? \
+ sdev_printk(l, sdev, "[%s] " fmt, p, ##a) : \
+ sdev_printk(l, sdev, fmt, ##a)
+
#define scmd_printk(prefix, scmd, fmt, a...) \
(scmd)->request->rq_disk ? \
sdev_printk(prefix, (scmd)->device, "[%s] " fmt, \
--
cgit v1.2.1
From d811b848ebb78a1135658aa20a80e31994df47f7 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:26:45 +0200
Subject: scsi: use sdev as argument for sense code printing
We should be using the standard dev_printk() variants for
sense code printing.
[hch: remove __scsi_print_sense call in xen-scsiback, Acked by Juergen]
[hch: folded bracing fix from Dan Carpenter]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_dbg.h | 17 +++++++++++------
include/scsi/scsi_eh.h | 2 +-
2 files changed, 12 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 5a43a4cd96c6..6cbd179a17cc 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -2,21 +2,26 @@
#define _SCSI_SCSI_DBG_H
struct scsi_cmnd;
+struct scsi_device;
struct scsi_sense_hdr;
extern void scsi_print_command(struct scsi_cmnd *);
extern void __scsi_print_command(unsigned char *);
-extern void scsi_show_extd_sense(unsigned char, unsigned char);
-extern void scsi_show_sense_hdr(struct scsi_sense_hdr *);
-extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *);
-extern void scsi_print_sense(char *, struct scsi_cmnd *);
-extern void __scsi_print_sense(const char *name,
+extern void scsi_show_extd_sense(const struct scsi_device *, const char *,
+ unsigned char, unsigned char);
+extern void scsi_show_sense_hdr(const struct scsi_device *, const char *,
+ const struct scsi_sense_hdr *);
+extern void scsi_print_sense_hdr(const struct scsi_device *, const char *,
+ const struct scsi_sense_hdr *);
+extern void scsi_print_sense(const struct scsi_cmnd *);
+extern void __scsi_print_sense(const struct scsi_device *, const char *name,
const unsigned char *sense_buffer,
int sense_len);
extern void scsi_show_result(int);
extern void scsi_print_result(struct scsi_cmnd *);
extern void scsi_print_status(unsigned char);
extern const char *scsi_sense_key_string(unsigned char);
-extern const char *scsi_extd_sense_format(unsigned char, unsigned char);
+extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
+ const char **);
#endif /* _SCSI_SCSI_DBG_H */
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 49af14ad5288..5e598f01143c 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -47,7 +47,7 @@ extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
struct scsi_sense_hdr *sshdr);
-static inline int scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr)
+static inline int scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr)
{
return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
}
--
cgit v1.2.1
From 4753cbc0a1286a60d2f859a7056f8e4873f494c8 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:26:52 +0200
Subject: scsi: use 'bool' as return value for scsi_normalize_sense()
Convert scsi_normalize_sense() and friends to return 'bool'
instead of an integer.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Yoshihiro Yunomae <yoshihiro.yunomae.ez@hitachi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_eh.h | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 5e598f01143c..256248141322 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -27,10 +27,10 @@ struct scsi_sense_hdr { /* See SPC-3 section 4.5 */
u8 additional_length; /* always 0 for fixed sense format */
};
-static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
+static inline bool scsi_sense_valid(const struct scsi_sense_hdr *sshdr)
{
if (!sshdr)
- return 0;
+ return false;
return (sshdr->response_code & 0x70) == 0x70;
}
@@ -42,12 +42,12 @@ extern void scsi_eh_flush_done_q(struct list_head *done_q);
extern void scsi_report_bus_reset(struct Scsi_Host *, int);
extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
extern int scsi_block_when_processing_errors(struct scsi_device *);
-extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
- struct scsi_sense_hdr *sshdr);
-extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
- struct scsi_sense_hdr *sshdr);
+extern bool scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
+ struct scsi_sense_hdr *sshdr);
+extern bool scsi_command_normalize_sense(const struct scsi_cmnd *cmd,
+ struct scsi_sense_hdr *sshdr);
-static inline int scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr)
+static inline bool scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr)
{
return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
}
--
cgit v1.2.1
From 7ac7076344d90b27e0b6dcbe1380b0841f70859b Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:26:53 +0200
Subject: scsi: remove scsi_print_status()
Last caller is gone, so we can remove it.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_dbg.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 6cbd179a17cc..386474ee53a1 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -19,7 +19,6 @@ extern void __scsi_print_sense(const struct scsi_device *, const char *name,
int sense_len);
extern void scsi_show_result(int);
extern void scsi_print_result(struct scsi_cmnd *);
-extern void scsi_print_status(unsigned char);
extern const char *scsi_sense_key_string(unsigned char);
extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
const char **);
--
cgit v1.2.1
From a9a47bf58ac1d5525ae99922e055d8de87eeae78 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:26:57 +0200
Subject: scsi: repurpose the last argument from print_opcode_name()
print_opcode_name() was only ever called with a '0' argument
from LLDDs and ULDs which were _not_ supporting variable length
CDBs, so the 'if' clause was never triggered.
Instead we should be using the last argument to specify
the cdb length to avoid accidental overflow when reading
the cdb buffer.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_dbg.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 386474ee53a1..81d041822229 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -6,7 +6,7 @@ struct scsi_device;
struct scsi_sense_hdr;
extern void scsi_print_command(struct scsi_cmnd *);
-extern void __scsi_print_command(unsigned char *);
+extern void __scsi_print_command(const unsigned char *, size_t);
extern void scsi_show_extd_sense(const struct scsi_device *, const char *,
unsigned char, unsigned char);
extern void scsi_show_sense_hdr(const struct scsi_device *, const char *,
--
cgit v1.2.1
From 3cc958cc19278de5fa090f3f7f1ed48b0170980a Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:26:59 +0200
Subject: scsi: separate out scsi_(host|driver)byte_string()
Export functions for later use.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_dbg.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 81d041822229..50f4d8542ece 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -19,6 +19,8 @@ extern void __scsi_print_sense(const struct scsi_device *, const char *name,
int sense_len);
extern void scsi_show_result(int);
extern void scsi_print_result(struct scsi_cmnd *);
+extern const char *scsi_hostbyte_string(int);
+extern const char *scsi_driverbyte_string(int);
extern const char *scsi_sense_key_string(unsigned char);
extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
const char **);
--
cgit v1.2.1
From ef61329db7b8b4326b1c4e603806b2754fd2a692 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:27:00 +0200
Subject: scsi: remove scsi_show_result()
Open-code scsi_print_result in sd.c, and cleanup logging to
not print duplicate informations.
Also remove the call to scsi_show_result() in ufshcd.c
to be consistent with other callers of scsi_execute().
With that we can remove scsi_show_result in constants.c
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_dbg.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 50f4d8542ece..f41a86bc1a8f 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -17,7 +17,6 @@ extern void scsi_print_sense(const struct scsi_cmnd *);
extern void __scsi_print_sense(const struct scsi_device *, const char *name,
const unsigned char *sense_buffer,
int sense_len);
-extern void scsi_show_result(int);
extern void scsi_print_result(struct scsi_cmnd *);
extern const char *scsi_hostbyte_string(int);
extern const char *scsi_driverbyte_string(int);
--
cgit v1.2.1
From c11c004b1c052fae77d3d0d14462d1f3a4e88d06 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 24 Oct 2014 14:27:01 +0200
Subject: scsi: simplify scsi_log_(send|completion)
Simplify scsi_log_(send|completion) by externalizing
scsi_mlreturn_string() and always print the command address.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_dbg.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index f41a86bc1a8f..7982795df595 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -17,9 +17,10 @@ extern void scsi_print_sense(const struct scsi_cmnd *);
extern void __scsi_print_sense(const struct scsi_device *, const char *name,
const unsigned char *sense_buffer,
int sense_len);
-extern void scsi_print_result(struct scsi_cmnd *);
+extern void scsi_print_result(struct scsi_cmnd *, const char *, int);
extern const char *scsi_hostbyte_string(int);
extern const char *scsi_driverbyte_string(int);
+extern const char *scsi_mlreturn_string(int);
extern const char *scsi_sense_key_string(unsigned char);
extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
const char **);
--
cgit v1.2.1
From 205fb5f5ba1d8edcf18009998ed05b80b7d186af Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 30 Oct 2014 14:45:11 +0100
Subject: blk-mq: add blk_mq_unique_tag()
The queuecommand() callback functions in SCSI low-level drivers
need to know which hardware context has been selected by the
block layer. Since this information is not available in the
request structure, and since passing the hctx pointer directly to
the queuecommand callback function would require modification of
all SCSI LLDs, add a function to the block layer that allows to
query the hardware context index.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/linux/blk-mq.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index c9be1589415a..15f7034aa377 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -167,6 +167,23 @@ struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
gfp_t gfp, bool reserved);
struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag);
+enum {
+ BLK_MQ_UNIQUE_TAG_BITS = 16,
+ BLK_MQ_UNIQUE_TAG_MASK = (1 << BLK_MQ_UNIQUE_TAG_BITS) - 1,
+};
+
+u32 blk_mq_unique_tag(struct request *rq);
+
+static inline u16 blk_mq_unique_tag_to_hwq(u32 unique_tag)
+{
+ return unique_tag >> BLK_MQ_UNIQUE_TAG_BITS;
+}
+
+static inline u16 blk_mq_unique_tag_to_tag(u32 unique_tag)
+{
+ return unique_tag & BLK_MQ_UNIQUE_TAG_MASK;
+}
+
struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *, const int ctx_index);
struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_tag_set *, unsigned int, int);
--
cgit v1.2.1
From efec4b90f1a9b4c80827e4b8c0863334e13b0bf1 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 30 Oct 2014 14:45:36 +0100
Subject: scsi: add support for multiple hardware queues
Allow a SCSI LLD to declare how many hardware queues it supports
by setting Scsi_Host.nr_hw_queues before calling scsi_add_host().
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_host.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 5e362489ee88..bb9e27815be5 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -638,6 +638,14 @@ struct Scsi_Host {
short unsigned int sg_prot_tablesize;
unsigned int max_sectors;
unsigned long dma_boundary;
+ /*
+ * In scsi-mq mode, the number of hardware queues supported by the LLD.
+ *
+ * Note: it is assumed that each hardware queue has a queue depth of
+ * can_queue. In other words, the total queue depth per host
+ * is nr_hw_queues * can_queue.
+ */
+ unsigned nr_hw_queues;
/*
* Used to assign serial numbers to the cmds.
* Protected by the host lock.
--
cgit v1.2.1
From 1ee8e889d946b3b1c2cc8b99e29eac47d1581dfd Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 30 Oct 2014 14:46:00 +0100
Subject: scsi: add support for multiple hardware queues in
scsi_(host_)find_tag
Modify scsi_find_tag() and scsi_host_find_tag() such that these
functions can translate a tag generated by blk_mq_unique_tag().
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_tcq.h | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 56ed843969ca..7529c6acc231 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -111,18 +111,21 @@ static inline int scsi_populate_tag_msg(struct scsi_cmnd *cmd, char *msg)
}
static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost,
- unsigned int hw_ctx, int tag)
+ int unique_tag)
{
- struct request *req;
+ u16 hwq = blk_mq_unique_tag_to_hwq(unique_tag);
+ struct request *req = NULL;
- req = blk_mq_tag_to_rq(shost->tag_set.tags[hw_ctx], tag);
+ if (hwq < shost->tag_set.nr_hw_queues)
+ req = blk_mq_tag_to_rq(shost->tag_set.tags[hwq],
+ blk_mq_unique_tag_to_tag(unique_tag));
return req ? (struct scsi_cmnd *)req->special : NULL;
}
/**
* scsi_find_tag - find a tagged command by device
* @SDpnt: pointer to the ScSI device
- * @tag: the tag number
+ * @tag: tag generated by blk_mq_unique_tag()
*
* Notes:
* Only works with tags allocated by the generic blk layer.
@@ -133,9 +136,9 @@ static inline struct scsi_cmnd *scsi_find_tag(struct scsi_device *sdev, int tag)
if (tag != SCSI_NO_TAG) {
if (shost_use_blk_mq(sdev->host))
- return scsi_mq_find_tag(sdev->host, 0, tag);
+ return scsi_mq_find_tag(sdev->host, tag);
- req = blk_queue_find_tag(sdev->request_queue, tag);
+ req = blk_queue_find_tag(sdev->request_queue, tag);
return req ? (struct scsi_cmnd *)req->special : NULL;
}
@@ -174,7 +177,7 @@ static inline int scsi_init_shared_tag_map(struct Scsi_Host *shost, int depth)
/**
* scsi_host_find_tag - find the tagged command by host
* @shost: pointer to scsi_host
- * @tag: tag of the scsi_cmnd
+ * @tag: tag generated by blk_mq_unique_tag()
*
* Notes:
* Only works with tags allocated by the generic blk layer.
@@ -186,7 +189,7 @@ static inline struct scsi_cmnd *scsi_host_find_tag(struct Scsi_Host *shost,
if (tag != SCSI_NO_TAG) {
if (shost_use_blk_mq(shost))
- return scsi_mq_find_tag(shost, 0, tag);
+ return scsi_mq_find_tag(shost, tag);
req = blk_map_queue_find_tag(shost->bqt, tag);
return req ? (struct scsi_cmnd *)req->special : NULL;
}
--
cgit v1.2.1
From 176aa9d6ee2db582e7e856dbe1983004a82869b4 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 11 Oct 2014 12:06:47 +0200
Subject: scsi: refactor scsi_reset_provider handling
Pull the common code from the two callers into the function,
and rename it to scsi_ioctl_reset.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_eh.h | 15 +--------------
1 file changed, 1 insertion(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 256248141322..1e1421b06565 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -60,20 +60,7 @@ extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
extern void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq);
-/*
- * Reset request from external source
- * Note: if SCSI_TRY_RESET_DEVICE fails then it will escalate to
- * SCSI_TRY_RESET_TARGET which if it fails will escalate to
- * SCSI_TRY_RESET_BUS which if it fails will escalate to SCSI_TRY_RESET_HOST.
- * To prevent escalation OR with SCSI_TRY_RESET_NO_ESCALATE.
- */
-#define SCSI_TRY_RESET_DEVICE 1
-#define SCSI_TRY_RESET_BUS 2
-#define SCSI_TRY_RESET_HOST 3
-#define SCSI_TRY_RESET_TARGET 4
-#define SCSI_TRY_RESET_NO_ESCALATE 0x100 /* OR-ed to prior defines */
-
-extern int scsi_reset_provider(struct scsi_device *, int);
+extern int scsi_ioctl_reset(struct scsi_device *, int __user *);
struct scsi_eh_save {
/* saved state */
--
cgit v1.2.1
From 906d15fbd23c1267addab361063c1c8119992215 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 11 Oct 2014 16:25:31 +0200
Subject: scsi: split scsi_nonblockable_ioctl
The calling conventions for this function are bad as it could return
-ENODEV both for a device not currently online and a not recognized ioctl.
Add a new scsi_ioctl_block_when_processing_errors function that wraps
scsi_block_when_processing_errors with the a special case for the
SG_SCSI_RESET ioctl command, and handle the SG_SCSI_RESET case itself
in scsi_ioctl. All callers of scsi_ioctl now must call the above helper
to check for the EH state, so that the ioctl handler itself doesn't
have to.
Reported-by: Robert Elliott <Elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_ioctl.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_ioctl.h b/include/scsi/scsi_ioctl.h
index b9006848b813..8d19d1d233c3 100644
--- a/include/scsi/scsi_ioctl.h
+++ b/include/scsi/scsi_ioctl.h
@@ -40,9 +40,9 @@ typedef struct scsi_fctargaddress {
unsigned char host_wwn[8]; // include NULL term.
} Scsi_FCTargAddress;
+int scsi_ioctl_block_when_processing_errors(struct scsi_device *sdev,
+ int cmd, bool ndelay);
extern int scsi_ioctl(struct scsi_device *, int, void __user *);
-extern int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd,
- void __user *arg, int ndelay);
#endif /* __KERNEL__ */
#endif /* _SCSI_IOCTL_H */
--
cgit v1.2.1
From cd37743fc978a14fee75a4e662582e15d16038a3 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 13 Sep 2014 19:59:51 -0700
Subject: scsi: use container_of to get at device handler private data
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_device.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 0b18a097c1ba..04cd5ad8289e 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -228,7 +228,6 @@ struct scsi_dh_data {
struct scsi_device_handler *scsi_dh;
struct scsi_device *sdev;
struct kref kref;
- char buf[0];
};
#define to_scsi_device(d) \
--
cgit v1.2.1
From a64d01dcf8440846f3077a436344f99313c1396c Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 13 Sep 2014 20:05:04 -0700
Subject: scsi: remove struct scsi_dh_devlist
All drivers now do their own matching, so there is no more need to expose
a device list as part of the interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_device.h | 6 ------
1 file changed, 6 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 04cd5ad8289e..2601c97fd8b9 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -201,11 +201,6 @@ struct scsi_device {
unsigned long sdev_data[0];
} __attribute__((aligned(sizeof(unsigned long))));
-struct scsi_dh_devlist {
- char *vendor;
- char *model;
-};
-
typedef void (*activate_complete)(void *, int);
struct scsi_device_handler {
/* Used by the infrastructure */
@@ -214,7 +209,6 @@ struct scsi_device_handler {
/* Filled by the hardware handler */
struct module *module;
const char *name;
- const struct scsi_dh_devlist *devlist;
int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *);
int (*attach)(struct scsi_device *);
void (*detach)(struct scsi_device *);
--
cgit v1.2.1
From 1d5203284d8acbdfdf9b478d434450b34f338f28 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sun, 14 Sep 2014 11:08:21 -0700
Subject: scsi: handle more device handler setup/teardown in common code
Move all code to set up and tear down sdev->scsi_dh_data to common code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_device.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 2601c97fd8b9..50d47e6e89d1 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -210,7 +210,7 @@ struct scsi_device_handler {
struct module *module;
const char *name;
int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *);
- int (*attach)(struct scsi_device *);
+ struct scsi_dh_data *(*attach)(struct scsi_device *);
void (*detach)(struct scsi_device *);
int (*activate)(struct scsi_device *, activate_complete, void *);
int (*prep_fn)(struct scsi_device *, struct request *);
--
cgit v1.2.1
From a62182f338b39a22035531c6afc0a8d2928b1df2 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 2 Oct 2014 14:39:55 +0200
Subject: scsi: provide a generic change_queue_type method
Most drivers use exactly the same implementation, so provide it as a
library function.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/libfc.h | 1 -
include/scsi/scsi_tcq.h | 2 ++
2 files changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 52beadf9a29b..2e0cf568a9c1 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -1106,7 +1106,6 @@ int fc_eh_device_reset(struct scsi_cmnd *);
int fc_eh_host_reset(struct scsi_cmnd *);
int fc_slave_alloc(struct scsi_device *);
int fc_change_queue_depth(struct scsi_device *, int qdepth, int reason);
-int fc_change_queue_type(struct scsi_device *, int tag_type);
/*
* ELS/CT interface
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 7529c6acc231..1712dab6e00e 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -16,6 +16,8 @@
#ifdef CONFIG_BLOCK
+int scsi_change_queue_type(struct scsi_device *sdev, int tag_type);
+
/**
* scsi_get_tag_type - get the type of tag the device supports
* @sdev: the scsi device
--
cgit v1.2.1
From 125c99bc8b6b108d251169a86324a7ed3c6f3cce Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 3 Nov 2014 12:47:47 +0100
Subject: scsi: add new scsi-command flag for tagged commands
Currently scsi piggy backs on the block layer to define the concept
of a tagged command. But we want to be able to have block-level host-wide
tags assigned even for untagged commands like the initial INQUIRY, so add
a new SCSI-level flag for commands that are tagged at the scsi level, so
that even commands without that set can have tags assigned to them. Note
that this alredy is the case for the blk-mq code path, and this just lets
the old path catch up with it.
We also set this flag based upon sdev->simple_tags instead of the block
queue flag, so that it is entirely independent of the block layer tagging,
and thus always correct even if a driver doesn't use block level tagging
yet.
Also remove the old blk_rq_tagged; it was only used by SCSI drivers, and
removing it forces them to look for the proper replacement.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/linux/blkdev.h | 1 -
include/scsi/scsi_cmnd.h | 4 ++++
include/scsi/scsi_tcq.h | 6 ++----
3 files changed, 6 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index aac0f9ea952a..6d76b8b4aa2b 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1136,7 +1136,6 @@ static inline bool blk_needs_flush_plug(struct task_struct *tsk)
/*
* tag stuff
*/
-#define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED)
extern int blk_queue_start_tag(struct request_queue *, struct request *);
extern struct request *blk_queue_find_tag(struct request_queue *, int);
extern void blk_queue_end_tag(struct request_queue *, struct request *);
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 522a5f27f553..e119142e565e 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -53,6 +53,9 @@ struct scsi_pointer {
volatile int phase;
};
+/* for scmd->flags */
+#define SCMD_TAGGED (1 << 0)
+
struct scsi_cmnd {
struct scsi_device *device;
struct list_head list; /* scsi_cmnd participates in queue lists */
@@ -132,6 +135,7 @@ struct scsi_cmnd {
* to be at an address < 16Mb). */
int result; /* Status code from lower level driver */
+ int flags; /* Command flags */
unsigned char tag; /* SCSI-II queued command tag */
};
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 1712dab6e00e..032df74b66d7 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -101,11 +101,9 @@ static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth)
**/
static inline int scsi_populate_tag_msg(struct scsi_cmnd *cmd, char *msg)
{
- struct request *req = cmd->request;
-
- if (blk_rq_tagged(req)) {
+ if (cmd->flags & SCMD_TAGGED) {
*msg++ = MSG_SIMPLE_TAG;
- *msg++ = req->tag;
+ *msg++ = cmd->request->tag;
return 2;
}
--
cgit v1.2.1
From 609aa22f3be76d470a334f39cc2197112dc91bd7 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 30 Oct 2014 11:54:58 +0100
Subject: scsi: remove ordered_tags scsi_device field
Remove the ordered_tags field, we haven't been issuing ordered tags based
on it since the big barrier rework in 2010.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
---
include/scsi/scsi_device.h | 1 -
include/scsi/scsi_tcq.h | 9 ---------
2 files changed, 10 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 50d47e6e89d1..e8fecb5ea79a 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -141,7 +141,6 @@ struct scsi_device {
unsigned ppr:1; /* Device supports PPR messages */
unsigned tagged_supported:1; /* Supports SCSI-II tagged queuing */
unsigned simple_tags:1; /* simple queue tag messages are enabled */
- unsigned ordered_tags:1;/* ordered queue tag messages are enabled */
unsigned was_reset:1; /* There was a bus reset on the bus for
* this device */
unsigned expecting_cc_ua:1; /* Expecting a CHECK_CONDITION/UNIT_ATTN
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 032df74b66d7..342f38c5b065 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -21,17 +21,11 @@ int scsi_change_queue_type(struct scsi_device *sdev, int tag_type);
/**
* scsi_get_tag_type - get the type of tag the device supports
* @sdev: the scsi device
- *
- * Notes:
- * If the drive only supports simple tags, returns MSG_SIMPLE_TAG
- * if it supports all tag types, returns MSG_ORDERED_TAG.
*/
static inline int scsi_get_tag_type(struct scsi_device *sdev)
{
if (!sdev->tagged_supported)
return 0;
- if (sdev->ordered_tags)
- return MSG_ORDERED_TAG;
if (sdev->simple_tags)
return MSG_SIMPLE_TAG;
return 0;
@@ -41,15 +35,12 @@ static inline void scsi_set_tag_type(struct scsi_device *sdev, int tag)
{
switch (tag) {
case MSG_ORDERED_TAG:
- sdev->ordered_tags = 1;
- /* fall through */
case MSG_SIMPLE_TAG:
sdev->simple_tags = 1;
break;
case 0:
/* fall through */
default:
- sdev->ordered_tags = 0;
sdev->simple_tags = 0;
break;
}
--
cgit v1.2.1
From abd0c533e37789ef56a73562d6d06d39897bd801 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 3 Nov 2014 14:47:07 +0100
Subject: scsi: remove ordered_tag host template field
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_host.h | 10 ----------
1 file changed, 10 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index bb9e27815be5..5b03ba9d7390 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -451,11 +451,6 @@ struct scsi_host_template {
*/
unsigned skip_settle_delay:1;
- /*
- * True if we are using ordered write support.
- */
- unsigned ordered_tag:1;
-
/* True if the controller does not support WRITE SAME */
unsigned no_write_same:1;
@@ -670,11 +665,6 @@ struct Scsi_Host {
*/
unsigned reverse_ordering:1;
- /*
- * Ordered write support
- */
- unsigned ordered_tag:1;
-
/* Task mgmt function in progress */
unsigned tmf_in_progress:1;
--
cgit v1.2.1
From 5066863337afdb0ad7323f424f7959d9f9f066da Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 30 Oct 2014 14:30:06 +0100
Subject: scsi: remove abuses of scsi_populate_tag
Unless we want to build a SPI tag message we should just check SCMD_TAGGED
instead of reverse engineering a tag type through the use of
scsi_populate_tag_msg.
Also rename the function to spi_populate_tag_msg, make it behave like the
other spi message helpers, and move it to the spi transport class.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_tcq.h | 21 ---------------------
include/scsi/scsi_transport_spi.h | 1 +
2 files changed, 1 insertion(+), 21 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 342f38c5b065..005f68da5adb 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -80,27 +80,6 @@ static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth)
scsi_adjust_queue_depth(sdev, 0, depth);
}
-/**
- * scsi_populate_tag_msg - place a tag message in a buffer
- * @SCpnt: pointer to the Scsi_Cmnd for the tag
- * @msg: pointer to the area to place the tag
- *
- * Notes:
- * designed to create the correct type of tag message for the
- * particular request. Returns the size of the tag message.
- * May return 0 if TCQ is disabled for this device.
- **/
-static inline int scsi_populate_tag_msg(struct scsi_cmnd *cmd, char *msg)
-{
- if (cmd->flags & SCMD_TAGGED) {
- *msg++ = MSG_SIMPLE_TAG;
- *msg++ = cmd->request->tag;
- return 2;
- }
-
- return 0;
-}
-
static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost,
int unique_tag)
{
diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h
index 7497a383b1a4..a4fa52b4d5c5 100644
--- a/include/scsi/scsi_transport_spi.h
+++ b/include/scsi/scsi_transport_spi.h
@@ -157,5 +157,6 @@ int spi_populate_width_msg(unsigned char *msg, int width);
int spi_populate_sync_msg(unsigned char *msg, int period, int offset);
int spi_populate_ppr_msg(unsigned char *msg, int period, int offset, int width,
int options);
+int spi_populate_tag_msg(unsigned char *msg, struct scsi_cmnd *cmd);
#endif /* SCSI_TRANSPORT_SPI_H */
--
cgit v1.2.1
From e2eddf4d530df745019fded0fedfb78f6d3e33ca Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 4 Nov 2014 07:58:28 +0100
Subject: scsi: remove use_blk_tcq Scsi_Host field
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
---
include/scsi/scsi_host.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 5b03ba9d7390..d6bd65294009 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -650,7 +650,6 @@ struct Scsi_Host {
unsigned active_mode:2;
unsigned unchecked_isa_dma:1;
unsigned use_clustering:1;
- unsigned use_blk_tcq:1;
/*
* Host has requested that no further requests come through for the
--
cgit v1.2.1
From 2ecb204d07ac8debe3893c362415919bc78bebd6 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 3 Nov 2014 14:09:02 +0100
Subject: scsi: always assign block layer tags if enabled
Allow a driver to ask for block layer tags by setting .use_blk_tags in the
host template, in which case it will always see a valid value in
request->tag, similar to the behavior when using blk-mq. This means even
SCSI "untagged" commands will now have a tag, which is especially useful
when using a host-wide tag map.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_host.h | 5 +++++
include/scsi/scsi_tcq.h | 34 ----------------------------------
2 files changed, 5 insertions(+), 34 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index d6bd65294009..61a81bf77e28 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -421,6 +421,11 @@ struct scsi_host_template {
*/
unsigned char present;
+ /*
+ * Let the block layer assigns tags to all commands.
+ */
+ unsigned use_blk_tags:1;
+
/*
* This specifies the mode that a LLD supports.
*/
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 005f68da5adb..fe4a70299419 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -45,40 +45,6 @@ static inline void scsi_set_tag_type(struct scsi_device *sdev, int tag)
break;
}
}
-/**
- * scsi_activate_tcq - turn on tag command queueing
- * @SDpnt: device to turn on TCQ for
- * @depth: queue depth
- *
- * Notes:
- * Eventually, I hope depth would be the maximum depth
- * the device could cope with and the real queue depth
- * would be adjustable from 0 to depth.
- **/
-static inline void scsi_activate_tcq(struct scsi_device *sdev, int depth)
-{
- if (!sdev->tagged_supported)
- return;
-
- if (shost_use_blk_mq(sdev->host))
- queue_flag_set_unlocked(QUEUE_FLAG_QUEUED, sdev->request_queue);
- else if (!blk_queue_tagged(sdev->request_queue))
- blk_queue_init_tags(sdev->request_queue, depth,
- sdev->host->bqt);
-
- scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
-}
-
-/**
- * scsi_deactivate_tcq - turn off tag command queueing
- * @SDpnt: device to turn off TCQ for
- **/
-static inline void scsi_deactivate_tcq(struct scsi_device *sdev, int depth)
-{
- if (blk_queue_tagged(sdev->request_queue))
- blk_queue_free_tags(sdev->request_queue);
- scsi_adjust_queue_depth(sdev, 0, depth);
-}
static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost,
int unique_tag)
--
cgit v1.2.1
From c8b09f6fb67df7fc1b51ced1037fa9b677428149 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 3 Nov 2014 20:15:14 +0100
Subject: scsi: don't set tagging state from scsi_adjust_queue_depth
Remove the tagged argument from scsi_adjust_queue_depth, and just let it
handle the queue depth. For most drivers those two are fairly separate,
given that most modern drivers don't care about the SCSI "tagged" status
of a command at all, and many old drivers allow queuing of multiple
untagged commands in the driver.
Instead we start out with the ->simple_tags flag set before calling
->slave_configure, which is how all drivers actually looking at
->simple_tags except for one worke anyway. The one other case looks
broken, but I've kept the behavior as-is for now.
Except for that we only change ->simple_tags from the ->change_queue_type,
and when rejecting a tag message in a single driver, so keeping this
churn out of scsi_adjust_queue_depth is a clear win.
Now that the usage of scsi_adjust_queue_depth is more obvious we can
also remove all the trivial instances in ->slave_alloc or ->slave_configure
that just set it to the cmd_per_lun default.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
---
include/scsi/scsi_device.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index e8fecb5ea79a..0aeaa003c3c1 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -380,7 +380,7 @@ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *,
#define __shost_for_each_device(sdev, shost) \
list_for_each_entry((sdev), &((shost)->__devices), siblings)
-extern void scsi_adjust_queue_depth(struct scsi_device *, int, int);
+extern void scsi_adjust_queue_depth(struct scsi_device *, int);
extern int scsi_track_queue_full(struct scsi_device *, int);
extern int scsi_set_medium_removal(struct scsi_device *, char);
--
cgit v1.2.1
From b326dd37b94e29bf6a15940f4fa66aa21a678ab1 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 10 Nov 2014 21:14:12 +0100
Subject: netfilter: nf_tables: restore synchronous object release from
commit/abort
The existing xtables matches and targets, when used from nft_compat, may
sleep from the destroy path, ie. when removing rules. Since the objects
are released via call_rcu from softirq context, this results in lockdep
splats and possible lockups that may be hard to reproduce.
Patrick also indicated that delayed object release via call_rcu can
cause us problems in the ordering of event notifications when anonymous
sets are in place.
So, this patch restores the synchronous object release from the commit
and abort paths. This includes a call to synchronize_rcu() to make sure
that no packets are walking on the objects that are going to be
released. This is slowier though, but it's simple and it resolves the
aforementioned problems.
This is a partial revert of c7c32e7 ("netfilter: nf_tables: defer all
object release via rcu") that was introduced in 3.16 to speed up
interaction with userspace.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_tables.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 845c596bf594..3ae969e3acf0 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -396,14 +396,12 @@ struct nft_rule {
/**
* struct nft_trans - nf_tables object update in transaction
*
- * @rcu_head: rcu head to defer release of transaction data
* @list: used internally
* @msg_type: message type
* @ctx: transaction context
* @data: internal information related to the transaction
*/
struct nft_trans {
- struct rcu_head rcu_head;
struct list_head list;
int msg_type;
struct nft_ctx ctx;
--
cgit v1.2.1
From ef691ff48bc838e9fca54b58dccac0a7c36a3130 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 22 Apr 2014 17:43:48 +0530
Subject: OMAPDSS: DT: Get source endpoint by matching reg-id
In omapdss_of_find_source_for_first_ep, we retrieve a source endpoint's DT node,
and then see what omapdss output has the matching device_node pointer in
omap_dss_find_output_by_node.
For all DPI and SDI outputs, the device_node pointer is set as the parent's DSS
device_node pointer. If the source is one of these outputs, the above method
won't work.
To get the correct output for ports within DSS(and in other cases in the future,
where multiple ports might be under one device), we require additional
information which is exclusive to the output port.
We create a new field in omap_dss_device called 'port_num', this provides port
number of the output port corresponding to this device. When searching for the
source endpoint in DT, we extract the 'reg' property from the port corresponding
to the endpoint source. From the list of registered outputs, we pick out that
output which has both dev->of_node and port_num matching with the device_node
pointer and 'reg' of the source endpoint node from DT.
For encoder blocks(the ones which have both an input and output port), we need
to set the port_num as the 'reg' property for the output port as defined in the
DT bindings. We set port_num to 1 in the tfp410 and tpd12s015 encoder drivers.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
include/video/omapdss.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 069dfca9549a..1db32023396e 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -795,6 +795,9 @@ struct omap_dss_device {
/* output instance */
enum omap_dss_output_id id;
+ /* the port number in the DT node */
+ int port_num;
+
/* dynamic fields */
struct omap_overlay_manager *manager;
@@ -918,7 +921,7 @@ int omapdss_register_output(struct omap_dss_device *output);
void omapdss_unregister_output(struct omap_dss_device *output);
struct omap_dss_device *omap_dss_get_output(enum omap_dss_output_id id);
struct omap_dss_device *omap_dss_find_output(const char *name);
-struct omap_dss_device *omap_dss_find_output_by_node(struct device_node *node);
+struct omap_dss_device *omap_dss_find_output_by_port_node(struct device_node *port);
int omapdss_output_set_device(struct omap_dss_device *out,
struct omap_dss_device *dssdev);
int omapdss_output_unset_device(struct omap_dss_device *out);
--
cgit v1.2.1
From c2791b806988100cc1c047e2b0b5c5d0914aa3b6 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 11 Nov 2014 17:45:45 -0700
Subject: PCI/MSI: Rename "struct msi_chip" to "struct msi_controller"
"msi_chip" isn't very descriptive, so rename it to "msi_controller". That
tells a little more about what it does and is already used in device tree
bindings.
No functional change.
[bhelgaas: changelog, change *only* the struct name so it's reviewable]
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/msi.h | 6 +++---
include/linux/of_pci.h | 12 ++++++------
include/linux/pci.h | 2 +-
3 files changed, 10 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index efad12742e45..6704991b0174 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -65,15 +65,15 @@ void arch_restore_msi_irqs(struct pci_dev *dev);
void default_teardown_msi_irqs(struct pci_dev *dev);
void default_restore_msi_irqs(struct pci_dev *dev);
-struct msi_chip {
+struct msi_controller {
struct module *owner;
struct device *dev;
struct device_node *of_node;
struct list_head list;
- int (*setup_irq)(struct msi_chip *chip, struct pci_dev *dev,
+ int (*setup_irq)(struct msi_controller *chip, struct pci_dev *dev,
struct msi_desc *desc);
- void (*teardown_irq)(struct msi_chip *chip, unsigned int irq);
+ void (*teardown_irq)(struct msi_controller *chip, unsigned int irq);
};
#endif /* LINUX_MSI_H */
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 1fd207e7a847..ce0e5abeb454 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -59,13 +59,13 @@ int of_pci_get_host_bridge_resources(struct device_node *dev,
#endif
#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
-int of_pci_msi_chip_add(struct msi_chip *chip);
-void of_pci_msi_chip_remove(struct msi_chip *chip);
-struct msi_chip *of_pci_find_msi_chip_by_node(struct device_node *of_node);
+int of_pci_msi_chip_add(struct msi_controller *chip);
+void of_pci_msi_chip_remove(struct msi_controller *chip);
+struct msi_controller *of_pci_find_msi_chip_by_node(struct device_node *of_node);
#else
-static inline int of_pci_msi_chip_add(struct msi_chip *chip) { return -EINVAL; }
-static inline void of_pci_msi_chip_remove(struct msi_chip *chip) { }
-static inline struct msi_chip *
+static inline int of_pci_msi_chip_add(struct msi_controller *chip) { return -EINVAL; }
+static inline void of_pci_msi_chip_remove(struct msi_controller *chip) { }
+static inline struct msi_controller *
of_pci_find_msi_chip_by_node(struct device_node *of_node) { return NULL; }
#endif
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5be8db45e368..90a5fdec6b9f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -449,7 +449,7 @@ struct pci_bus {
struct resource busn_res; /* bus numbers routed to this bus */
struct pci_ops *ops; /* configuration access functions */
- struct msi_chip *msi; /* MSI controller */
+ struct msi_controller *msi; /* MSI controller */
void *sysdata; /* hook for sys-specific extension */
struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */
--
cgit v1.2.1
From d3cf6a4b01894e69e9e800ef76f34eaa13357ff1 Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Mon, 10 Nov 2014 20:02:47 +0900
Subject: usb: renesas_usbhs: expand USB-DMAC channels for R-Car Gen2
This patch expands USB-DMAC channels for R-Car Gen2 SoCs. The SoCs
have 4 channels. If d{2,3}_{t,x}x_id are not set, this driver never
uses the expanded USB-DMAC channels.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/renesas_usbhs.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index d5952bb66752..9fd9e481ea98 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -145,6 +145,10 @@ struct renesas_usbhs_driver_param {
int d0_rx_id;
int d1_tx_id;
int d1_rx_id;
+ int d2_tx_id;
+ int d2_rx_id;
+ int d3_tx_id;
+ int d3_rx_id;
/*
* option:
--
cgit v1.2.1
From c31accd159a6477b91de61ae237dce38e3f3ee4d Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 11 Nov 2014 19:45:57 +0100
Subject: net: phy: add module_phy_driver macro
Add helper macro for PHY drivers which do not do anything special in
module init/exit. This will allow us to eliminate a lot of boilerplate
code.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/phy.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
(limited to 'include')
diff --git a/include/linux/phy.h b/include/linux/phy.h
index d090cfcaa167..07794e720139 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -772,4 +772,28 @@ int __init mdio_bus_init(void);
void mdio_bus_exit(void);
extern struct bus_type mdio_bus_type;
+
+/**
+ * module_phy_driver() - Helper macro for registering PHY drivers
+ * @__phy_drivers: array of PHY drivers to register
+ *
+ * Helper macro for PHY drivers which do not do anything special in module
+ * init/exit. Each module may only use this macro once, and calling it
+ * replaces module_init() and module_exit().
+ */
+#define phy_module_driver(__phy_drivers, __count) \
+static int __init phy_module_init(void) \
+{ \
+ return phy_drivers_register(__phy_drivers, __count); \
+} \
+module_init(phy_module_init); \
+static void __exit phy_module_exit(void) \
+{ \
+ phy_drivers_unregister(__phy_drivers, __count); \
+} \
+module_exit(phy_module_exit)
+
+#define module_phy_driver(__phy_drivers) \
+ phy_module_driver(__phy_drivers, ARRAY_SIZE(__phy_drivers))
+
#endif /* __PHY_H */
--
cgit v1.2.1
From 955a9d202f470019f42979f0d1caec98843e39ce Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 11 Nov 2014 14:44:57 -0800
Subject: irda: Convert IRDA_DEBUG to pr_debug
Use the normal kernel debugging mechanism which also
enables dynamic_debug at the same time.
Other miscellanea:
o Remove sysctl for irda_debug
o Remove function tracing like uses (use ftrace instead)
o Coalesce formats
o Realign arguments
o Remove unnecessary OOM messages
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/irda/irda.h | 11 -----------
include/net/irda/irlap.h | 2 +-
2 files changed, 1 insertion(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/net/irda/irda.h b/include/net/irda/irda.h
index 4ff18bdc63df..92c8fb575213 100644
--- a/include/net/irda/irda.h
+++ b/include/net/irda/irda.h
@@ -55,16 +55,6 @@ typedef __u32 magic_t;
#endif
#ifdef CONFIG_IRDA_DEBUG
-
-extern unsigned int irda_debug;
-
-/* use 0 for production, 1 for verification, >2 for debug */
-#define IRDA_DEBUG_LEVEL 0
-
-#define IRDA_DEBUG(n, args...) \
-do { if (irda_debug >= (n)) \
- printk(KERN_DEBUG args); \
-} while (0)
#define IRDA_ASSERT(expr, func) \
do { if(!(expr)) { \
printk( "Assertion failed! %s:%s:%d %s\n", \
@@ -72,7 +62,6 @@ do { if(!(expr)) { \
func } } while (0)
#define IRDA_ASSERT_LABEL(label) label
#else
-#define IRDA_DEBUG(n, args...) do { } while (0)
#define IRDA_ASSERT(expr, func) do { (void)(expr); } while (0)
#define IRDA_ASSERT_LABEL(label)
#endif /* CONFIG_IRDA_DEBUG */
diff --git a/include/net/irda/irlap.h b/include/net/irda/irlap.h
index fb4b76d5d7f1..6f23e820618c 100644
--- a/include/net/irda/irlap.h
+++ b/include/net/irda/irlap.h
@@ -303,7 +303,7 @@ static inline void irlap_next_state(struct irlap_cb *self, IRLAP_STATE state)
if (!self || self->magic != LAP_MAGIC)
return;
- IRDA_DEBUG(4, "next LAP state = %s\n", irlap_state[state]);
+ pr_debug("next LAP state = %s\n", irlap_state[state]);
*/
self->state = state;
}
--
cgit v1.2.1
From 8c393f9a721c30a030049a680e1bf896669bb279 Mon Sep 17 00:00:00 2001
From: Peng Tao <tao.peng@primarydata.com>
Date: Wed, 5 Nov 2014 22:36:50 +0800
Subject: nfs: fix pnfs direct write memory leak
For pNFS direct writes, layout driver may dynamically allocate ds_cinfo.buckets.
So we need to take care to free them when freeing dreq.
Ideally this needs to be done inside layout driver where ds_cinfo.buckets
are allocated. But buckets are attached to dreq and reused across LD IO iterations.
So I feel it's OK to free them in the generic layer.
Cc: stable@vger.kernel.org [v3.4+]
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs_xdr.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 983876f24aed..47ebb4fafd87 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1224,11 +1224,22 @@ struct nfs41_free_stateid_res {
unsigned int status;
};
+static inline void
+nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
+{
+ kfree(cinfo->buckets);
+}
+
#else
struct pnfs_ds_commit_info {
};
+static inline void
+nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
+{
+}
+
#endif /* CONFIG_NFS_V4_1 */
#ifdef CONFIG_NFS_V4_2
--
cgit v1.2.1
From a8c5f90fb59a2d3bff0bd29adbb3e39fe0dd52f8 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Wed, 12 Nov 2014 11:54:09 -0800
Subject: ip_tunnel: Ops registration for secondary encap (fou, gue)
Instead of calling fou and gue functions directly from ip_tunnel
use ops for these that were previously registered. This patch adds the
logic to add and remove encapsulation operations for ip_tunnel,
and modified fou (and gue) to register with ip_tunnels.
This patch also addresses a circular dependency between ip_tunnel
and fou that was causing link errors when CONFIG_NET_IP_TUNNEL=y
and CONFIG_NET_FOU=m. References to fou an gue have been removed from
ip_tunnel.c
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/fou.h | 25 +++----------------------
include/net/ip_tunnels.h | 16 ++++++++++++++++
2 files changed, 19 insertions(+), 22 deletions(-)
(limited to 'include')
diff --git a/include/net/fou.h b/include/net/fou.h
index 25b26ffcf1df..19b8a0c62a98 100644
--- a/include/net/fou.h
+++ b/include/net/fou.h
@@ -8,31 +8,12 @@
#include <net/ip_tunnels.h>
#include <net/udp.h>
+size_t fou_encap_hlen(struct ip_tunnel_encap *e);
+static size_t gue_encap_hlen(struct ip_tunnel_encap *e);
+
int fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi4 *fl4);
int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi4 *fl4);
-static size_t fou_encap_hlen(struct ip_tunnel_encap *e)
-{
- return sizeof(struct udphdr);
-}
-
-static size_t gue_encap_hlen(struct ip_tunnel_encap *e)
-{
- size_t len;
- bool need_priv = false;
-
- len = sizeof(struct udphdr) + sizeof(struct guehdr);
-
- if (e->flags & TUNNEL_ENCAP_FLAG_REMCSUM) {
- len += GUE_PLEN_REMCSUM;
- need_priv = true;
- }
-
- len += need_priv ? GUE_LEN_PRIV : 0;
-
- return len;
-}
-
#endif
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 5bc6edeb7143..25a59eb388a6 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -117,6 +117,22 @@ struct ip_tunnel_net {
struct hlist_head tunnels[IP_TNL_HASH_SIZE];
};
+struct ip_tunnel_encap_ops {
+ size_t (*encap_hlen)(struct ip_tunnel_encap *e);
+ int (*build_header)(struct sk_buff *skb, struct ip_tunnel_encap *e,
+ u8 *protocol, struct flowi4 *fl4);
+};
+
+#define MAX_IPTUN_ENCAP_OPS 8
+
+extern const struct ip_tunnel_encap_ops __rcu *
+ iptun_encaps[MAX_IPTUN_ENCAP_OPS];
+
+int ip_tunnel_encap_add_ops(const struct ip_tunnel_encap_ops *op,
+ unsigned int num);
+int ip_tunnel_encap_del_ops(const struct ip_tunnel_encap_ops *op,
+ unsigned int num);
+
#ifdef CONFIG_INET
int ip_tunnel_init(struct net_device *dev);
--
cgit v1.2.1
From b82b6cca488074da3852e8a54fde1d9f74bf1557 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Wed, 12 Nov 2014 16:03:50 +0100
Subject: cpuidle: Invert CPUIDLE_FLAG_TIME_VALID logic
The only place where the time is invalid is when the ACPI_CSTATE_FFH entry
method is not set. Otherwise for all the drivers, the time can be correctly
measured.
Instead of duplicating the CPUIDLE_FLAG_TIME_VALID flag in all the drivers
for all the states, just invert the logic by replacing it by the flag
CPUIDLE_FLAG_TIME_INVALID, hence we can set this flag only for the acpi idle
driver, remove the former flag from all the drivers and invert the logic with
this flag in the different governor.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/cpuidle.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 25e0df6155a4..a07e087f54b2 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -53,7 +53,7 @@ struct cpuidle_state {
};
/* Idle State Flags */
-#define CPUIDLE_FLAG_TIME_VALID (0x01) /* is residency time measurable? */
+#define CPUIDLE_FLAG_TIME_INVALID (0x01) /* is residency time measurable? */
#define CPUIDLE_FLAG_COUPLED (0x02) /* state applies to multiple cpus */
#define CPUIDLE_FLAG_TIMER_STOP (0x04) /* timer is stopped on this state */
@@ -90,7 +90,7 @@ DECLARE_PER_CPU(struct cpuidle_device, cpuidle_dev);
* cpuidle_get_last_residency - retrieves the last state's residency time
* @dev: the target CPU
*
- * NOTE: this value is invalid if CPUIDLE_FLAG_TIME_VALID isn't set
+ * NOTE: this value is invalid if CPUIDLE_FLAG_TIME_INVALID is set
*/
static inline int cpuidle_get_last_residency(struct cpuidle_device *dev)
{
--
cgit v1.2.1
From ab08aefcd12d4e21abb28264ca77a430dcce7ebd Mon Sep 17 00:00:00 2001
From: Chao Xie <chao.xie@marvell.com>
Date: Fri, 31 Oct 2014 10:13:49 +0800
Subject: clk: mmp: add pxa168 DT support for clock driver
It adds the DT support for pxa168 clock subsystem.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/marvell,pxa168.h | 57 ++++++++++++++++++++++++++++++
1 file changed, 57 insertions(+)
create mode 100644 include/dt-bindings/clock/marvell,pxa168.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/marvell,pxa168.h b/include/dt-bindings/clock/marvell,pxa168.h
new file mode 100644
index 000000000000..79630b9d74b8
--- /dev/null
+++ b/include/dt-bindings/clock/marvell,pxa168.h
@@ -0,0 +1,57 @@
+#ifndef __DTS_MARVELL_PXA168_CLOCK_H
+#define __DTS_MARVELL_PXA168_CLOCK_H
+
+/* fixed clocks and plls */
+#define PXA168_CLK_CLK32 1
+#define PXA168_CLK_VCTCXO 2
+#define PXA168_CLK_PLL1 3
+#define PXA168_CLK_PLL1_2 8
+#define PXA168_CLK_PLL1_4 9
+#define PXA168_CLK_PLL1_8 10
+#define PXA168_CLK_PLL1_16 11
+#define PXA168_CLK_PLL1_6 12
+#define PXA168_CLK_PLL1_12 13
+#define PXA168_CLK_PLL1_24 14
+#define PXA168_CLK_PLL1_48 15
+#define PXA168_CLK_PLL1_96 16
+#define PXA168_CLK_PLL1_13 17
+#define PXA168_CLK_PLL1_13_1_5 18
+#define PXA168_CLK_PLL1_2_1_5 19
+#define PXA168_CLK_PLL1_3_16 20
+#define PXA168_CLK_UART_PLL 27
+
+/* apb periphrals */
+#define PXA168_CLK_TWSI0 60
+#define PXA168_CLK_TWSI1 61
+#define PXA168_CLK_TWSI2 62
+#define PXA168_CLK_TWSI3 63
+#define PXA168_CLK_GPIO 64
+#define PXA168_CLK_KPC 65
+#define PXA168_CLK_RTC 66
+#define PXA168_CLK_PWM0 67
+#define PXA168_CLK_PWM1 68
+#define PXA168_CLK_PWM2 69
+#define PXA168_CLK_PWM3 70
+#define PXA168_CLK_UART0 71
+#define PXA168_CLK_UART1 72
+#define PXA168_CLK_UART2 73
+#define PXA168_CLK_SSP0 74
+#define PXA168_CLK_SSP1 75
+#define PXA168_CLK_SSP2 76
+#define PXA168_CLK_SSP3 77
+#define PXA168_CLK_SSP4 78
+
+/* axi periphrals */
+#define PXA168_CLK_DFC 100
+#define PXA168_CLK_SDH0 101
+#define PXA168_CLK_SDH1 102
+#define PXA168_CLK_SDH2 103
+#define PXA168_CLK_USB 104
+#define PXA168_CLK_SPH 105
+#define PXA168_CLK_DISP0 106
+#define PXA168_CLK_CCIC0 107
+#define PXA168_CLK_CCIC0_PHY 108
+#define PXA168_CLK_CCIC0_SPHY 109
+
+#define PXA168_NR_CLKS 200
+#endif
--
cgit v1.2.1
From 2bc61da9f7ff422117a68bef0d309a29affd023a Mon Sep 17 00:00:00 2001
From: Chao Xie <chao.xie@marvell.com>
Date: Fri, 31 Oct 2014 10:13:50 +0800
Subject: clk: mmp: add pxa910 DT support for clock driver
It adds the DT support for pxa910 clock subsystem.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/marvell,pxa910.h | 54 ++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
create mode 100644 include/dt-bindings/clock/marvell,pxa910.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/marvell,pxa910.h b/include/dt-bindings/clock/marvell,pxa910.h
new file mode 100644
index 000000000000..719cffb2bea2
--- /dev/null
+++ b/include/dt-bindings/clock/marvell,pxa910.h
@@ -0,0 +1,54 @@
+#ifndef __DTS_MARVELL_PXA910_CLOCK_H
+#define __DTS_MARVELL_PXA910_CLOCK_H
+
+/* fixed clocks and plls */
+#define PXA910_CLK_CLK32 1
+#define PXA910_CLK_VCTCXO 2
+#define PXA910_CLK_PLL1 3
+#define PXA910_CLK_PLL1_2 8
+#define PXA910_CLK_PLL1_4 9
+#define PXA910_CLK_PLL1_8 10
+#define PXA910_CLK_PLL1_16 11
+#define PXA910_CLK_PLL1_6 12
+#define PXA910_CLK_PLL1_12 13
+#define PXA910_CLK_PLL1_24 14
+#define PXA910_CLK_PLL1_48 15
+#define PXA910_CLK_PLL1_96 16
+#define PXA910_CLK_PLL1_13 17
+#define PXA910_CLK_PLL1_13_1_5 18
+#define PXA910_CLK_PLL1_2_1_5 19
+#define PXA910_CLK_PLL1_3_16 20
+#define PXA910_CLK_UART_PLL 27
+
+/* apb periphrals */
+#define PXA910_CLK_TWSI0 60
+#define PXA910_CLK_TWSI1 61
+#define PXA910_CLK_TWSI2 62
+#define PXA910_CLK_TWSI3 63
+#define PXA910_CLK_GPIO 64
+#define PXA910_CLK_KPC 65
+#define PXA910_CLK_RTC 66
+#define PXA910_CLK_PWM0 67
+#define PXA910_CLK_PWM1 68
+#define PXA910_CLK_PWM2 69
+#define PXA910_CLK_PWM3 70
+#define PXA910_CLK_UART0 71
+#define PXA910_CLK_UART1 72
+#define PXA910_CLK_UART2 73
+#define PXA910_CLK_SSP0 74
+#define PXA910_CLK_SSP1 75
+
+/* axi periphrals */
+#define PXA910_CLK_DFC 100
+#define PXA910_CLK_SDH0 101
+#define PXA910_CLK_SDH1 102
+#define PXA910_CLK_SDH2 103
+#define PXA910_CLK_USB 104
+#define PXA910_CLK_SPH 105
+#define PXA910_CLK_DISP0 106
+#define PXA910_CLK_CCIC0 107
+#define PXA910_CLK_CCIC0_PHY 108
+#define PXA910_CLK_CCIC0_SPHY 109
+
+#define PXA910_NR_CLKS 200
+#endif
--
cgit v1.2.1
From 1ec770d92a62582ac1f7e0969d6a0ddc54d5f49e Mon Sep 17 00:00:00 2001
From: Chao Xie <chao.xie@marvell.com>
Date: Fri, 31 Oct 2014 10:13:51 +0800
Subject: clk: mmp: add mmp2 DT support for clock driver
It adds the DT support for mmp2 clock subsystem.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/marvell,mmp2.h | 74 ++++++++++++++++++++++++++++++++
1 file changed, 74 insertions(+)
create mode 100644 include/dt-bindings/clock/marvell,mmp2.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/marvell,mmp2.h b/include/dt-bindings/clock/marvell,mmp2.h
new file mode 100644
index 000000000000..591f7fba89e2
--- /dev/null
+++ b/include/dt-bindings/clock/marvell,mmp2.h
@@ -0,0 +1,74 @@
+#ifndef __DTS_MARVELL_MMP2_CLOCK_H
+#define __DTS_MARVELL_MMP2_CLOCK_H
+
+/* fixed clocks and plls */
+#define MMP2_CLK_CLK32 1
+#define MMP2_CLK_VCTCXO 2
+#define MMP2_CLK_PLL1 3
+#define MMP2_CLK_PLL1_2 8
+#define MMP2_CLK_PLL1_4 9
+#define MMP2_CLK_PLL1_8 10
+#define MMP2_CLK_PLL1_16 11
+#define MMP2_CLK_PLL1_3 12
+#define MMP2_CLK_PLL1_6 13
+#define MMP2_CLK_PLL1_12 14
+#define MMP2_CLK_PLL1_20 15
+#define MMP2_CLK_PLL2 16
+#define MMP2_CLK_PLL2_2 17
+#define MMP2_CLK_PLL2_4 18
+#define MMP2_CLK_PLL2_8 19
+#define MMP2_CLK_PLL2_16 20
+#define MMP2_CLK_PLL2_3 21
+#define MMP2_CLK_PLL2_6 22
+#define MMP2_CLK_PLL2_12 23
+#define MMP2_CLK_VCTCXO_2 24
+#define MMP2_CLK_VCTCXO_4 25
+#define MMP2_CLK_UART_PLL 26
+#define MMP2_CLK_USB_PLL 27
+
+/* apb periphrals */
+#define MMP2_CLK_TWSI0 60
+#define MMP2_CLK_TWSI1 61
+#define MMP2_CLK_TWSI2 62
+#define MMP2_CLK_TWSI3 63
+#define MMP2_CLK_TWSI4 64
+#define MMP2_CLK_TWSI5 65
+#define MMP2_CLK_GPIO 66
+#define MMP2_CLK_KPC 67
+#define MMP2_CLK_RTC 68
+#define MMP2_CLK_PWM0 69
+#define MMP2_CLK_PWM1 70
+#define MMP2_CLK_PWM2 71
+#define MMP2_CLK_PWM3 72
+#define MMP2_CLK_UART0 73
+#define MMP2_CLK_UART1 74
+#define MMP2_CLK_UART2 75
+#define MMP2_CLK_UART3 76
+#define MMP2_CLK_SSP0 77
+#define MMP2_CLK_SSP1 78
+#define MMP2_CLK_SSP2 79
+#define MMP2_CLK_SSP3 80
+
+/* axi periphrals */
+#define MMP2_CLK_SDH0 101
+#define MMP2_CLK_SDH1 102
+#define MMP2_CLK_SDH2 103
+#define MMP2_CLK_SDH3 104
+#define MMP2_CLK_USB 105
+#define MMP2_CLK_DISP0 106
+#define MMP2_CLK_DISP0_MUX 107
+#define MMP2_CLK_DISP0_SPHY 108
+#define MMP2_CLK_DISP1 109
+#define MMP2_CLK_DISP1_MUX 110
+#define MMP2_CLK_CCIC_ARBITER 111
+#define MMP2_CLK_CCIC0 112
+#define MMP2_CLK_CCIC0_MIX 113
+#define MMP2_CLK_CCIC0_PHY 114
+#define MMP2_CLK_CCIC0_SPHY 115
+#define MMP2_CLK_CCIC1 116
+#define MMP2_CLK_CCIC1_MIX 117
+#define MMP2_CLK_CCIC1_PHY 118
+#define MMP2_CLK_CCIC1_SPHY 119
+
+#define MMP2_NR_CLKS 200
+#endif
--
cgit v1.2.1
From 61f2dcba9a03d4fd9342f0d6821af0a46c7098e9 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 12 Nov 2014 19:51:56 +0100
Subject: mac802154: add interframe spacing time handling
This patch adds a new interframe spacing time handling into mac802154
layer. Interframe spacing time is a time period between each transmit.
This patch adds a high resolution timer into mac802154 and starts on
xmit complete with corresponding interframe spacing expire time if
ifs_handling is true. We make it variable because it depends if
interframe spacing time is handled by transceiver or mac802154. At the
timer complete function we wake the netdev queue again. This avoids
new frame transmit in range of interframe spacing time.
For synced driver we add no handling of interframe spacing time. This
is currently a lack of support in all synced xmit drivers. I suppose
it's working because the latency of workqueue which is needed to call
spi_sync.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 3 +++
include/net/cfg802154.h | 8 ++++++++
include/net/mac802154.h | 3 ++-
3 files changed, 13 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index ce0f96a55976..5a40c0418438 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -36,6 +36,9 @@
#define IEEE802154_EXTENDED_ADDR_LEN 8
+#define IEEE802154_LIFS_PERIOD 40
+#define IEEE802154_SIFS_PERIOD 12
+
#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
#define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */
#define IEEE802154_FC_TYPE_ACK 0x2 /* Frame is acknowledgment */
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index fa0a9e519523..17b4fc0705b2 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -81,6 +81,14 @@ struct wpan_phy {
s32 cca_ed_level;
+ /* PHY depended MAC PIB values */
+
+ /* 802.15.4 acronym: Tdsym in usec */
+ u8 symbol_duration;
+ /* lifs and sifs periods timing */
+ u16 lifs_period;
+ u16 sifs_period;
+
struct device dev;
char priv[0] __aligned(NETDEV_ALIGN);
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 632f6566adb5..c823d910b46c 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -260,6 +260,7 @@ void ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb,
void ieee802154_wake_queue(struct ieee802154_hw *hw);
void ieee802154_stop_queue(struct ieee802154_hw *hw);
-void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb);
+void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb,
+ bool ifs_handling);
#endif /* NET_MAC802154_H */
--
cgit v1.2.1
From abe84903a8efc6b83fa92161429e0e3a28bde15c Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 12 Nov 2014 22:22:21 +0200
Subject: Bluetooth: Use proper nesting annotation for l2cap_chan lock
By default lockdep considers all L2CAP channels equal. This would mean
that we get warnings if a channel is locked when another one's lock is
tried to be acquired in the same thread. This kind of inter-channel
locking dependencies exist in the form of parent-child channels as well
as any channel wishing to elevate the security by requesting procedures
on the SMP channel.
To eliminate the chance for these lockdep warnings we introduce a
nesting level for each channel and use that when acquiring the channel
lock. For now there exists the earlier mentioned three identified
categories: SMP, "normal" channels and parent channels (i.e. those in
BT_LISTEN state). The nesting level is defined as atomic_t since we need
access to it before the lock is actually acquired.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index ead99f032f7a..061e648052c8 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -28,6 +28,7 @@
#define __L2CAP_H
#include <asm/unaligned.h>
+#include <linux/atomic.h>
/* L2CAP defaults */
#define L2CAP_DEFAULT_MTU 672
@@ -481,6 +482,7 @@ struct l2cap_chan {
struct hci_conn *hs_hcon;
struct hci_chan *hs_hchan;
struct kref kref;
+ atomic_t nesting;
__u8 state;
@@ -713,6 +715,17 @@ enum {
FLAG_HOLD_HCI_CONN,
};
+/* Lock nesting levels for L2CAP channels. We need these because lockdep
+ * otherwise considers all channels equal and will e.g. complain about a
+ * connection oriented channel triggering SMP procedures or a listening
+ * channel creating and locking a child channel.
+ */
+enum {
+ L2CAP_NESTING_SMP,
+ L2CAP_NESTING_NORMAL,
+ L2CAP_NESTING_PARENT,
+};
+
enum {
L2CAP_TX_STATE_XMIT,
L2CAP_TX_STATE_WAIT_F,
@@ -778,7 +791,7 @@ void l2cap_chan_put(struct l2cap_chan *c);
static inline void l2cap_chan_lock(struct l2cap_chan *chan)
{
- mutex_lock(&chan->lock);
+ mutex_lock_nested(&chan->lock, atomic_read(&chan->nesting));
}
static inline void l2cap_chan_unlock(struct l2cap_chan *chan)
--
cgit v1.2.1
From ecbbe59bbb1cd2973e031c5b6ba28653d66a17de Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 13 May 2014 11:36:13 +0200
Subject: drm: Use size_t for blob property sizes
size_t is the standard type when dealing with sizes of all kinds. Use it
consistently when instantiating DRM blob properties.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_crtc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c40070a92d6b..628369c08503 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -196,7 +196,7 @@ struct drm_framebuffer {
struct drm_property_blob {
struct drm_mode_object base;
struct list_head head;
- unsigned int length;
+ size_t length;
unsigned char data[];
};
--
cgit v1.2.1
From 12e6cecd55e541d3e8110f7dfbb6a601e81733ff Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 13 May 2014 11:38:36 +0200
Subject: drm: Use const data when creating blob properties
Creating a blob property will always copy the input data so the data
that is passed in can be const.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_crtc.h | 4 ++--
include/drm/drm_dp_mst_helper.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 628369c08503..ce0dd6c2d73d 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -978,9 +978,9 @@ extern void drm_mode_config_reset(struct drm_device *dev);
extern void drm_mode_config_cleanup(struct drm_device *dev);
extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
- char *path);
+ const char *path);
extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
- struct edid *edid);
+ const struct edid *edid);
static inline bool drm_property_type_is(struct drm_property *property,
uint32_t type)
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 338fc1053835..fdcd7f271b66 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -371,7 +371,7 @@ struct drm_dp_sideband_msg_tx {
struct drm_dp_mst_topology_mgr;
struct drm_dp_mst_topology_cbs {
/* create a connector for a port */
- struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, char *path);
+ struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
void (*destroy_connector)(struct drm_dp_mst_topology_mgr *mgr,
struct drm_connector *connector);
void (*hotplug)(struct drm_dp_mst_topology_mgr *mgr);
--
cgit v1.2.1
From 34eab43ed2483e69bc79fd2e3aaf5adfae771907 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Wed, 4 Jun 2014 09:18:29 +0200
Subject: drm/prime: Use unsigned type for number of pages
The number of pages can never be negative, so an unsigned type is
enough. This also matches the type of the n_pages argument of the
sg_alloc_table_from_pages() function.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drmP.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 53ed87698a74..75b259492a8d 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -986,7 +986,7 @@ extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
dma_addr_t *addrs, int max_pages);
-extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
+extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
--
cgit v1.2.1
From a9e3c90c9fa39ed00e3223dc8f93c9cd12abb750 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 13:37:47 +0200
Subject: drm: Implement drm_get_pci_dev() dummy for !PCI
Implementing a dummy of this function allows drivers that use it to be
built on platforms that don't have PCI. This can happen for example if
the nouveau driver is built on Tegra without PCI enabled (or on 64-bit
ARM where PCI is not yet implemented).
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drmP.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 75b259492a8d..87aac391c605 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1028,10 +1028,25 @@ void drm_pci_agp_destroy(struct drm_device *dev);
extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver);
extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);
+#ifdef CONFIG_PCI
extern int drm_get_pci_dev(struct pci_dev *pdev,
const struct pci_device_id *ent,
struct drm_driver *driver);
extern int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
+#else
+static inline int drm_get_pci_dev(struct pci_dev *pdev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver)
+{
+ return -ENOSYS;
+}
+
+static inline int drm_pci_set_busid(struct drm_device *dev,
+ struct drm_master *master)
+{
+ return -ENOSYS;
+}
+#endif
#define DRM_PCIE_SPEED_25 1
#define DRM_PCIE_SPEED_50 2
--
cgit v1.2.1
From 2f7633125a1ca8a03b63bf91b5eca60551141ddb Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 13 Oct 2014 12:45:57 +0200
Subject: drm: Make drm_mode_create_tv_properties() signature consistent
The prototype and the function implementation differ in their signature.
Make them consistent and use an unsigned integer for the number of modes
while at it.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_crtc.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index ce0dd6c2d73d..48255076d1bd 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1041,8 +1041,9 @@ extern void drm_property_destroy(struct drm_device *dev, struct drm_property *pr
extern int drm_property_add_enum(struct drm_property *property, int index,
uint64_t value, const char *name);
extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
-extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
- char *formats[]);
+extern int drm_mode_create_tv_properties(struct drm_device *dev,
+ unsigned int num_modes,
+ char *modes[]);
extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
--
cgit v1.2.1
From 37d74578d819b1798dd2cff724438e345d118980 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Wed, 8 Oct 2014 11:14:34 +0200
Subject: video/hdmi: Relicense header under MIT license
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
OpenBSD wants to reuse this file but needs the license to be more
permissive.
Acked-by: Alban Bedel <alban.bedel@avionic-design.de>
Acked-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/linux/hdmi.h | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index 11c0182a153b..cbb5790a35cd 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -1,9 +1,24 @@
/*
* Copyright (C) 2012 Avionic Design GmbH
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*/
#ifndef __LINUX_HDMI_H_
--
cgit v1.2.1
From 53c2e285f9703001e1bb48d04696c5f9d8f3aef7 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 13 Nov 2014 17:09:49 +0800
Subject: xfrm: Do not hash socket policies
Back in 2003 when I added policy expiration, I half-heartedly
did a clean-up and renamed xfrm_sk_policy_link/xfrm_sk_policy_unlink
to __xfrm_policy_link/__xfrm_policy_unlink, because the latter
could be reused for all policies. I never actually got around
to using __xfrm_policy_link for non-socket policies.
Later on hashing was added to all xfrm policies, including socket
policies. In fact, we don't need hashing on socket policies at
all since they're always looked up via a linked list.
This patch restores xfrm_sk_policy_link/xfrm_sk_policy_unlink
as wrappers around __xfrm_policy_link/__xfrm_policy_unlink so
that it's obvious we're dealing with socket policies.
This patch also removes hashing from __xfrm_policy_link as for
now it's only used by socket policies which do not need to be
hashed. Ironically this will in fact allow us to use this helper
for non-socket policies which I shall do later.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
include/net/netns/xfrm.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 9da798256f0e..730d82ad6ee5 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -50,8 +50,8 @@ struct netns_xfrm {
struct list_head policy_all;
struct hlist_head *policy_byidx;
unsigned int policy_idx_hmask;
- struct hlist_head policy_inexact[XFRM_POLICY_MAX * 2];
- struct xfrm_policy_hash policy_bydst[XFRM_POLICY_MAX * 2];
+ struct hlist_head policy_inexact[XFRM_POLICY_MAX];
+ struct xfrm_policy_hash policy_bydst[XFRM_POLICY_MAX];
unsigned int policy_count[XFRM_POLICY_MAX * 2];
struct work_struct policy_hash_work;
struct xfrm_policy_hthresh policy_hthresh;
--
cgit v1.2.1
From f0a0a58e6f46c2dded813ee860b9cbd795b4e571 Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Date: Fri, 7 Nov 2014 21:58:21 +0100
Subject: ARM: at91: move sdramc/ddrsdr header to include/soc/at91
Move the (DDR) SDRAM controller headers to include/soc/at91 to remove the
dependency on mach/ headers from the at91-reset driver.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
include/soc/at91/at91rm9200_sdramc.h | 63 ++++++++++++++++++
include/soc/at91/at91sam9_ddrsdr.h | 124 +++++++++++++++++++++++++++++++++++
include/soc/at91/at91sam9_sdramc.h | 85 ++++++++++++++++++++++++
3 files changed, 272 insertions(+)
create mode 100644 include/soc/at91/at91rm9200_sdramc.h
create mode 100644 include/soc/at91/at91sam9_ddrsdr.h
create mode 100644 include/soc/at91/at91sam9_sdramc.h
(limited to 'include')
diff --git a/include/soc/at91/at91rm9200_sdramc.h b/include/soc/at91/at91rm9200_sdramc.h
new file mode 100644
index 000000000000..aa047f458f1b
--- /dev/null
+++ b/include/soc/at91/at91rm9200_sdramc.h
@@ -0,0 +1,63 @@
+/*
+ * arch/arm/mach-at91/include/mach/at91rm9200_sdramc.h
+ *
+ * Copyright (C) 2005 Ivan Kokshaysky
+ * Copyright (C) SAN People
+ *
+ * Memory Controllers (SDRAMC only) - System peripherals registers.
+ * Based on AT91RM9200 datasheet revision E.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91RM9200_SDRAMC_H
+#define AT91RM9200_SDRAMC_H
+
+/* SDRAM Controller registers */
+#define AT91RM9200_SDRAMC_MR 0x90 /* Mode Register */
+#define AT91RM9200_SDRAMC_MODE (0xf << 0) /* Command Mode */
+#define AT91RM9200_SDRAMC_MODE_NORMAL (0 << 0)
+#define AT91RM9200_SDRAMC_MODE_NOP (1 << 0)
+#define AT91RM9200_SDRAMC_MODE_PRECHARGE (2 << 0)
+#define AT91RM9200_SDRAMC_MODE_LMR (3 << 0)
+#define AT91RM9200_SDRAMC_MODE_REFRESH (4 << 0)
+#define AT91RM9200_SDRAMC_DBW (1 << 4) /* Data Bus Width */
+#define AT91RM9200_SDRAMC_DBW_32 (0 << 4)
+#define AT91RM9200_SDRAMC_DBW_16 (1 << 4)
+
+#define AT91RM9200_SDRAMC_TR 0x94 /* Refresh Timer Register */
+#define AT91RM9200_SDRAMC_COUNT (0xfff << 0) /* Refresh Timer Count */
+
+#define AT91RM9200_SDRAMC_CR 0x98 /* Configuration Register */
+#define AT91RM9200_SDRAMC_NC (3 << 0) /* Number of Column Bits */
+#define AT91RM9200_SDRAMC_NC_8 (0 << 0)
+#define AT91RM9200_SDRAMC_NC_9 (1 << 0)
+#define AT91RM9200_SDRAMC_NC_10 (2 << 0)
+#define AT91RM9200_SDRAMC_NC_11 (3 << 0)
+#define AT91RM9200_SDRAMC_NR (3 << 2) /* Number of Row Bits */
+#define AT91RM9200_SDRAMC_NR_11 (0 << 2)
+#define AT91RM9200_SDRAMC_NR_12 (1 << 2)
+#define AT91RM9200_SDRAMC_NR_13 (2 << 2)
+#define AT91RM9200_SDRAMC_NB (1 << 4) /* Number of Banks */
+#define AT91RM9200_SDRAMC_NB_2 (0 << 4)
+#define AT91RM9200_SDRAMC_NB_4 (1 << 4)
+#define AT91RM9200_SDRAMC_CAS (3 << 5) /* CAS Latency */
+#define AT91RM9200_SDRAMC_CAS_2 (2 << 5)
+#define AT91RM9200_SDRAMC_TWR (0xf << 7) /* Write Recovery Delay */
+#define AT91RM9200_SDRAMC_TRC (0xf << 11) /* Row Cycle Delay */
+#define AT91RM9200_SDRAMC_TRP (0xf << 15) /* Row Precharge Delay */
+#define AT91RM9200_SDRAMC_TRCD (0xf << 19) /* Row to Column Delay */
+#define AT91RM9200_SDRAMC_TRAS (0xf << 23) /* Active to Precharge Delay */
+#define AT91RM9200_SDRAMC_TXSR (0xf << 27) /* Exit Self Refresh to Active Delay */
+
+#define AT91RM9200_SDRAMC_SRR 0x9c /* Self Refresh Register */
+#define AT91RM9200_SDRAMC_LPR 0xa0 /* Low Power Register */
+#define AT91RM9200_SDRAMC_IER 0xa4 /* Interrupt Enable Register */
+#define AT91RM9200_SDRAMC_IDR 0xa8 /* Interrupt Disable Register */
+#define AT91RM9200_SDRAMC_IMR 0xac /* Interrupt Mask Register */
+#define AT91RM9200_SDRAMC_ISR 0xb0 /* Interrupt Status Register */
+
+#endif
diff --git a/include/soc/at91/at91sam9_ddrsdr.h b/include/soc/at91/at91sam9_ddrsdr.h
new file mode 100644
index 000000000000..0210797abf2e
--- /dev/null
+++ b/include/soc/at91/at91sam9_ddrsdr.h
@@ -0,0 +1,124 @@
+/*
+ * Header file for the Atmel DDR/SDR SDRAM Controller
+ *
+ * Copyright (C) 2010 Atmel Corporation
+ * Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef AT91SAM9_DDRSDR_H
+#define AT91SAM9_DDRSDR_H
+
+#define AT91_DDRSDRC_MR 0x00 /* Mode Register */
+#define AT91_DDRSDRC_MODE (0x7 << 0) /* Command Mode */
+#define AT91_DDRSDRC_MODE_NORMAL 0
+#define AT91_DDRSDRC_MODE_NOP 1
+#define AT91_DDRSDRC_MODE_PRECHARGE 2
+#define AT91_DDRSDRC_MODE_LMR 3
+#define AT91_DDRSDRC_MODE_REFRESH 4
+#define AT91_DDRSDRC_MODE_EXT_LMR 5
+#define AT91_DDRSDRC_MODE_DEEP 6
+
+#define AT91_DDRSDRC_RTR 0x04 /* Refresh Timer Register */
+#define AT91_DDRSDRC_COUNT (0xfff << 0) /* Refresh Timer Counter */
+
+#define AT91_DDRSDRC_CR 0x08 /* Configuration Register */
+#define AT91_DDRSDRC_NC (3 << 0) /* Number of Column Bits */
+#define AT91_DDRSDRC_NC_SDR8 (0 << 0)
+#define AT91_DDRSDRC_NC_SDR9 (1 << 0)
+#define AT91_DDRSDRC_NC_SDR10 (2 << 0)
+#define AT91_DDRSDRC_NC_SDR11 (3 << 0)
+#define AT91_DDRSDRC_NC_DDR9 (0 << 0)
+#define AT91_DDRSDRC_NC_DDR10 (1 << 0)
+#define AT91_DDRSDRC_NC_DDR11 (2 << 0)
+#define AT91_DDRSDRC_NC_DDR12 (3 << 0)
+#define AT91_DDRSDRC_NR (3 << 2) /* Number of Row Bits */
+#define AT91_DDRSDRC_NR_11 (0 << 2)
+#define AT91_DDRSDRC_NR_12 (1 << 2)
+#define AT91_DDRSDRC_NR_13 (2 << 2)
+#define AT91_DDRSDRC_NR_14 (3 << 2)
+#define AT91_DDRSDRC_CAS (7 << 4) /* CAS Latency */
+#define AT91_DDRSDRC_CAS_2 (2 << 4)
+#define AT91_DDRSDRC_CAS_3 (3 << 4)
+#define AT91_DDRSDRC_CAS_25 (6 << 4)
+#define AT91_DDRSDRC_RST_DLL (1 << 7) /* Reset DLL */
+#define AT91_DDRSDRC_DICDS (1 << 8) /* Output impedance control */
+#define AT91_DDRSDRC_DIS_DLL (1 << 9) /* Disable DLL [SAM9 Only] */
+#define AT91_DDRSDRC_OCD (1 << 12) /* Off-Chip Driver [SAM9 Only] */
+#define AT91_DDRSDRC_DQMS (1 << 16) /* Mask Data is Shared [SAM9 Only] */
+#define AT91_DDRSDRC_ACTBST (1 << 18) /* Active Bank X to Burst Stop Read Access Bank Y [SAM9 Only] */
+
+#define AT91_DDRSDRC_T0PR 0x0C /* Timing 0 Register */
+#define AT91_DDRSDRC_TRAS (0xf << 0) /* Active to Precharge delay */
+#define AT91_DDRSDRC_TRCD (0xf << 4) /* Row to Column delay */
+#define AT91_DDRSDRC_TWR (0xf << 8) /* Write recovery delay */
+#define AT91_DDRSDRC_TRC (0xf << 12) /* Row cycle delay */
+#define AT91_DDRSDRC_TRP (0xf << 16) /* Row precharge delay */
+#define AT91_DDRSDRC_TRRD (0xf << 20) /* Active BankA to BankB */
+#define AT91_DDRSDRC_TWTR (0x7 << 24) /* Internal Write to Read delay */
+#define AT91_DDRSDRC_RED_WRRD (0x1 << 27) /* Reduce Write to Read Delay [SAM9 Only] */
+#define AT91_DDRSDRC_TMRD (0xf << 28) /* Load mode to active/refresh delay */
+
+#define AT91_DDRSDRC_T1PR 0x10 /* Timing 1 Register */
+#define AT91_DDRSDRC_TRFC (0x1f << 0) /* Row Cycle Delay */
+#define AT91_DDRSDRC_TXSNR (0xff << 8) /* Exit self-refresh to non-read */
+#define AT91_DDRSDRC_TXSRD (0xff << 16) /* Exit self-refresh to read */
+#define AT91_DDRSDRC_TXP (0xf << 24) /* Exit power-down delay */
+
+#define AT91_DDRSDRC_T2PR 0x14 /* Timing 2 Register [SAM9 Only] */
+#define AT91_DDRSDRC_TXARD (0xf << 0) /* Exit active power down delay to read command in mode "Fast Exit" */
+#define AT91_DDRSDRC_TXARDS (0xf << 4) /* Exit active power down delay to read command in mode "Slow Exit" */
+#define AT91_DDRSDRC_TRPA (0xf << 8) /* Row Precharge All delay */
+#define AT91_DDRSDRC_TRTP (0x7 << 12) /* Read to Precharge delay */
+
+#define AT91_DDRSDRC_LPR 0x1C /* Low Power Register */
+#define AT91_DDRSDRC_LPCB (3 << 0) /* Low-power Configurations */
+#define AT91_DDRSDRC_LPCB_DISABLE 0
+#define AT91_DDRSDRC_LPCB_SELF_REFRESH 1
+#define AT91_DDRSDRC_LPCB_POWER_DOWN 2
+#define AT91_DDRSDRC_LPCB_DEEP_POWER_DOWN 3
+#define AT91_DDRSDRC_CLKFR (1 << 2) /* Clock Frozen */
+#define AT91_DDRSDRC_PASR (7 << 4) /* Partial Array Self Refresh */
+#define AT91_DDRSDRC_TCSR (3 << 8) /* Temperature Compensated Self Refresh */
+#define AT91_DDRSDRC_DS (3 << 10) /* Drive Strength */
+#define AT91_DDRSDRC_TIMEOUT (3 << 12) /* Time to define when Low Power Mode is enabled */
+#define AT91_DDRSDRC_TIMEOUT_0_CLK_CYCLES (0 << 12)
+#define AT91_DDRSDRC_TIMEOUT_64_CLK_CYCLES (1 << 12)
+#define AT91_DDRSDRC_TIMEOUT_128_CLK_CYCLES (2 << 12)
+#define AT91_DDRSDRC_APDE (1 << 16) /* Active power down exit time */
+#define AT91_DDRSDRC_UPD_MR (3 << 20) /* Update load mode register and extended mode register */
+
+#define AT91_DDRSDRC_MDR 0x20 /* Memory Device Register */
+#define AT91_DDRSDRC_MD (3 << 0) /* Memory Device Type */
+#define AT91_DDRSDRC_MD_SDR 0
+#define AT91_DDRSDRC_MD_LOW_POWER_SDR 1
+#define AT91_DDRSDRC_MD_LOW_POWER_DDR 3
+#define AT91_DDRSDRC_MD_DDR2 6 /* [SAM9 Only] */
+#define AT91_DDRSDRC_DBW (1 << 4) /* Data Bus Width */
+#define AT91_DDRSDRC_DBW_32BITS (0 << 4)
+#define AT91_DDRSDRC_DBW_16BITS (1 << 4)
+
+#define AT91_DDRSDRC_DLL 0x24 /* DLL Information Register */
+#define AT91_DDRSDRC_MDINC (1 << 0) /* Master Delay increment */
+#define AT91_DDRSDRC_MDDEC (1 << 1) /* Master Delay decrement */
+#define AT91_DDRSDRC_MDOVF (1 << 2) /* Master Delay Overflow */
+#define AT91_DDRSDRC_MDVAL (0xff << 8) /* Master Delay value */
+
+#define AT91_DDRSDRC_HS 0x2C /* High Speed Register [SAM9 Only] */
+#define AT91_DDRSDRC_DIS_ATCP_RD (1 << 2) /* Anticip read access is disabled */
+
+#define AT91_DDRSDRC_DELAY(n) (0x30 + (0x4 * (n))) /* Delay I/O Register n */
+
+#define AT91_DDRSDRC_WPMR 0xE4 /* Write Protect Mode Register [SAM9 Only] */
+#define AT91_DDRSDRC_WP (1 << 0) /* Write protect enable */
+#define AT91_DDRSDRC_WPKEY (0xffffff << 8) /* Write protect key */
+#define AT91_DDRSDRC_KEY (0x444452 << 8) /* Write protect key = "DDR" */
+
+#define AT91_DDRSDRC_WPSR 0xE8 /* Write Protect Status Register [SAM9 Only] */
+#define AT91_DDRSDRC_WPVS (1 << 0) /* Write protect violation status */
+#define AT91_DDRSDRC_WPVSRC (0xffff << 8) /* Write protect violation source */
+
+#endif
diff --git a/include/soc/at91/at91sam9_sdramc.h b/include/soc/at91/at91sam9_sdramc.h
new file mode 100644
index 000000000000..3d085a9a7450
--- /dev/null
+++ b/include/soc/at91/at91sam9_sdramc.h
@@ -0,0 +1,85 @@
+/*
+ * arch/arm/mach-at91/include/mach/at91sam9_sdramc.h
+ *
+ * Copyright (C) 2007 Andrew Victor
+ * Copyright (C) 2007 Atmel Corporation.
+ *
+ * SDRAM Controllers (SDRAMC) - System peripherals registers.
+ * Based on AT91SAM9261 datasheet revision D.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91SAM9_SDRAMC_H
+#define AT91SAM9_SDRAMC_H
+
+/* SDRAM Controller (SDRAMC) registers */
+#define AT91_SDRAMC_MR 0x00 /* SDRAM Controller Mode Register */
+#define AT91_SDRAMC_MODE (0xf << 0) /* Command Mode */
+#define AT91_SDRAMC_MODE_NORMAL 0
+#define AT91_SDRAMC_MODE_NOP 1
+#define AT91_SDRAMC_MODE_PRECHARGE 2
+#define AT91_SDRAMC_MODE_LMR 3
+#define AT91_SDRAMC_MODE_REFRESH 4
+#define AT91_SDRAMC_MODE_EXT_LMR 5
+#define AT91_SDRAMC_MODE_DEEP 6
+
+#define AT91_SDRAMC_TR 0x04 /* SDRAM Controller Refresh Timer Register */
+#define AT91_SDRAMC_COUNT (0xfff << 0) /* Refresh Timer Counter */
+
+#define AT91_SDRAMC_CR 0x08 /* SDRAM Controller Configuration Register */
+#define AT91_SDRAMC_NC (3 << 0) /* Number of Column Bits */
+#define AT91_SDRAMC_NC_8 (0 << 0)
+#define AT91_SDRAMC_NC_9 (1 << 0)
+#define AT91_SDRAMC_NC_10 (2 << 0)
+#define AT91_SDRAMC_NC_11 (3 << 0)
+#define AT91_SDRAMC_NR (3 << 2) /* Number of Row Bits */
+#define AT91_SDRAMC_NR_11 (0 << 2)
+#define AT91_SDRAMC_NR_12 (1 << 2)
+#define AT91_SDRAMC_NR_13 (2 << 2)
+#define AT91_SDRAMC_NB (1 << 4) /* Number of Banks */
+#define AT91_SDRAMC_NB_2 (0 << 4)
+#define AT91_SDRAMC_NB_4 (1 << 4)
+#define AT91_SDRAMC_CAS (3 << 5) /* CAS Latency */
+#define AT91_SDRAMC_CAS_1 (1 << 5)
+#define AT91_SDRAMC_CAS_2 (2 << 5)
+#define AT91_SDRAMC_CAS_3 (3 << 5)
+#define AT91_SDRAMC_DBW (1 << 7) /* Data Bus Width */
+#define AT91_SDRAMC_DBW_32 (0 << 7)
+#define AT91_SDRAMC_DBW_16 (1 << 7)
+#define AT91_SDRAMC_TWR (0xf << 8) /* Write Recovery Delay */
+#define AT91_SDRAMC_TRC (0xf << 12) /* Row Cycle Delay */
+#define AT91_SDRAMC_TRP (0xf << 16) /* Row Precharge Delay */
+#define AT91_SDRAMC_TRCD (0xf << 20) /* Row to Column Delay */
+#define AT91_SDRAMC_TRAS (0xf << 24) /* Active to Precharge Delay */
+#define AT91_SDRAMC_TXSR (0xf << 28) /* Exit Self Refresh to Active Delay */
+
+#define AT91_SDRAMC_LPR 0x10 /* SDRAM Controller Low Power Register */
+#define AT91_SDRAMC_LPCB (3 << 0) /* Low-power Configurations */
+#define AT91_SDRAMC_LPCB_DISABLE 0
+#define AT91_SDRAMC_LPCB_SELF_REFRESH 1
+#define AT91_SDRAMC_LPCB_POWER_DOWN 2
+#define AT91_SDRAMC_LPCB_DEEP_POWER_DOWN 3
+#define AT91_SDRAMC_PASR (7 << 4) /* Partial Array Self Refresh */
+#define AT91_SDRAMC_TCSR (3 << 8) /* Temperature Compensated Self Refresh */
+#define AT91_SDRAMC_DS (3 << 10) /* Drive Strength */
+#define AT91_SDRAMC_TIMEOUT (3 << 12) /* Time to define when Low Power Mode is enabled */
+#define AT91_SDRAMC_TIMEOUT_0_CLK_CYCLES (0 << 12)
+#define AT91_SDRAMC_TIMEOUT_64_CLK_CYCLES (1 << 12)
+#define AT91_SDRAMC_TIMEOUT_128_CLK_CYCLES (2 << 12)
+
+#define AT91_SDRAMC_IER 0x14 /* SDRAM Controller Interrupt Enable Register */
+#define AT91_SDRAMC_IDR 0x18 /* SDRAM Controller Interrupt Disable Register */
+#define AT91_SDRAMC_IMR 0x1C /* SDRAM Controller Interrupt Mask Register */
+#define AT91_SDRAMC_ISR 0x20 /* SDRAM Controller Interrupt Status Register */
+#define AT91_SDRAMC_RES (1 << 0) /* Refresh Error Status */
+
+#define AT91_SDRAMC_MDR 0x24 /* SDRAM Memory Device Register */
+#define AT91_SDRAMC_MD (3 << 0) /* Memory Device Type */
+#define AT91_SDRAMC_MD_SDRAM 0
+#define AT91_SDRAMC_MD_LOW_POWER_SDRAM 1
+
+#endif
--
cgit v1.2.1
From d7883f8759ab64e7df40f1cbd038745a0bfd9cb8 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 3 Nov 2014 13:56:55 +0100
Subject: drm/doc: Add GEM/CMA helpers to kerneldoc
Most of the functions already have the beginnings of kerneldoc comments
but are using the wrong opening marker. Use the correct opening marker
and flesh out the comments so that they can be integrated with the DRM
DocBook document.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_gem_cma_helper.h | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index 2ff35f3de9c5..873d4eb7f125 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -4,6 +4,13 @@
#include <drm/drmP.h>
#include <drm/drm_gem.h>
+/**
+ * struct drm_gem_cma_object - GEM object backed by CMA memory allocations
+ * @base: base GEM object
+ * @paddr: physical address of the backing memory
+ * @sgt: scatter/gather table for imported PRIME buffers
+ * @vaddr: kernel virtual address of the backing memory
+ */
struct drm_gem_cma_object {
struct drm_gem_object base;
dma_addr_t paddr;
@@ -19,23 +26,25 @@ to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
return container_of(gem_obj, struct drm_gem_cma_object, base);
}
-/* free gem object. */
+/* free GEM object */
void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
-/* create memory region for drm framebuffer. */
+/* create memory region for DRM framebuffer */
int drm_gem_cma_dumb_create(struct drm_file *file_priv,
- struct drm_device *drm, struct drm_mode_create_dumb *args);
+ struct drm_device *drm,
+ struct drm_mode_create_dumb *args);
-/* map memory region for drm framebuffer to user space. */
+/* map memory region for DRM framebuffer to user space */
int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
- struct drm_device *drm, uint32_t handle, uint64_t *offset);
+ struct drm_device *drm, u32 handle,
+ u64 *offset);
-/* set vm_flags and we can change the vm attribute to other one at here. */
+/* set vm_flags and we can change the VM attribute to other one at here */
int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);
-/* allocate physical memory. */
+/* allocate physical memory */
struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
- unsigned int size);
+ size_t size);
extern const struct vm_operations_struct drm_gem_cma_vm_ops;
--
cgit v1.2.1
From 6d1782919dc9b860c0a1d712f1e1f146af16f6c5 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 3 Nov 2014 11:48:49 +0100
Subject: drm/cma: Introduce drm_gem_cma_dumb_create_internal()
This function is similar to drm_gem_cma_dumb_create() but targetted at
kernel internal users so that they can override the pitch and size
requirements of the dumb buffer.
It is important to make this difference because the IOCTL says that the
pitch and size fields are to be considered outputs and therefore should
not be used in computations of the framebuffer size. Internal users may
still want to use this code to avoid duplication and at the same time
pass on additional, driver-specific restrictions on the pitch and size.
While at it, convert the R-Car DU driver, the single user that overrides
the pitch, to use the new internal helper.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_gem_cma_helper.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index 873d4eb7f125..acd6af8a8e67 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -29,6 +29,11 @@ to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
/* free GEM object */
void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
+/* create memory region for DRM framebuffer */
+int drm_gem_cma_dumb_create_internal(struct drm_file *file_priv,
+ struct drm_device *drm,
+ struct drm_mode_create_dumb *args);
+
/* create memory region for DRM framebuffer */
int drm_gem_cma_dumb_create(struct drm_file *file_priv,
struct drm_device *drm,
--
cgit v1.2.1
From 02acb76d72b3672330b6a20d2773048658b2d176 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 4 Nov 2014 14:59:14 +0100
Subject: drm/dsi: Introduce packet format helpers
Add two helpers, mipi_dsi_packet_format_is_{short,long}(), that help in
determining the format of a packet.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 8569dc5a1026..f1a07e302559 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -43,6 +43,9 @@ struct mipi_dsi_msg {
void *rx_buf;
};
+bool mipi_dsi_packet_format_is_short(u8 type);
+bool mipi_dsi_packet_format_is_long(u8 type);
+
/**
* struct mipi_dsi_host_ops - DSI bus operations
* @attach: attach DSI device to DSI host
--
cgit v1.2.1
From a52879e8d7cbeed69be5e54c69701e5edea8cc00 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Thu, 16 Oct 2014 13:44:02 +0200
Subject: drm/dsi: Add message to packet translator
This commit introduces a new function, mipi_dsi_create_packet(), which
converts from a MIPI DSI message to a MIPI DSI packet. The MIPI DSI
packet is as close to the protocol described in the DSI specification as
possible and useful in drivers that need to write a DSI packet into a
FIFO to send a message off to the peripheral.
Suggested-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index f1a07e302559..6e3e3aadd2d7 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -46,6 +46,24 @@ struct mipi_dsi_msg {
bool mipi_dsi_packet_format_is_short(u8 type);
bool mipi_dsi_packet_format_is_long(u8 type);
+/**
+ * struct mipi_dsi_packet - represents a MIPI DSI packet in protocol format
+ * @size: size (in bytes) of the packet
+ * @header: the four bytes that make up the header (Data ID, Word Count or
+ * Packet Data, and ECC)
+ * @payload_length: number of bytes in the payload
+ * @payload: a pointer to a buffer containing the payload, if any
+ */
+struct mipi_dsi_packet {
+ size_t size;
+ u8 header[4];
+ size_t payload_length;
+ const u8 *payload;
+};
+
+int mipi_dsi_create_packet(struct mipi_dsi_packet *packet,
+ const struct mipi_dsi_msg *msg);
+
/**
* struct mipi_dsi_host_ops - DSI bus operations
* @attach: attach DSI device to DSI host
--
cgit v1.2.1
From 960dd616f61c8482b3f9d01fa6623576fb74503c Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 21 Jul 2014 15:47:10 +0200
Subject: drm/dsi: Make mipi_dsi_dcs_{read,write}() symmetrical
Currently the mipi_dsi_dcs_write() function requires the DCS command
byte to be embedded within the write buffer whereas mipi_dsi_dcs_read()
has a separate parameter. Make them more symmetrical by adding an extra
command parameter to mipi_dsi_dcs_write().
The S6E8AA0 driver relies on the old asymmetric API and there's concern
that moving to the new API may be less efficient. Provide a new function
with the old semantics for those cases and make the S6E8AA0 driver use
it instead.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 6e3e3aadd2d7..44cece97f333 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -153,8 +153,10 @@ static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
int mipi_dsi_attach(struct mipi_dsi_device *dsi);
int mipi_dsi_detach(struct mipi_dsi_device *dsi);
-ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, const void *data,
- size_t len);
+ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
+ const void *data, size_t len);
+ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
+ const void *data, size_t len);
ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
size_t len);
--
cgit v1.2.1
From ed6ff40ee72cc6d384a0aea5efa10c526350e84a Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 11:27:56 +0200
Subject: drm/dsi: Constify mipi_dsi_msg
struct mipi_dsi_msg is a read-only structure, drivers should never need
to modify it. Make this explicit by making all references to the struct
const.
Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 44cece97f333..4eeb4a5ead8b 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -77,7 +77,7 @@ struct mipi_dsi_host_ops {
int (*detach)(struct mipi_dsi_host *host,
struct mipi_dsi_device *dsi);
ssize_t (*transfer)(struct mipi_dsi_host *host,
- struct mipi_dsi_msg *msg);
+ const struct mipi_dsi_msg *msg);
};
/**
--
cgit v1.2.1
From dbf30b695809b88fd650dab4028156fb85c5f2d9 Mon Sep 17 00:00:00 2001
From: YoungJun Cho <yj44.cho@samsung.com>
Date: Tue, 5 Aug 2014 09:27:15 +0200
Subject: drm/dsi: Add mipi_dsi_set_maximum_return_packet_size() helper
This function can be used to set the maximum return packet size for a
MIPI DSI peripheral.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
[treding: endianess, kerneldoc, return value]
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 4eeb4a5ead8b..4a4e9d7ccc16 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -153,6 +153,8 @@ static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
int mipi_dsi_attach(struct mipi_dsi_device *dsi);
int mipi_dsi_detach(struct mipi_dsi_device *dsi);
+int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
+ u16 value);
ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
const void *data, size_t len);
ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
--
cgit v1.2.1
From 550ab8483641c6d5f059d66816b1d32dad4bcfde Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 10:36:21 +0200
Subject: drm/dsi: Implement generic read and write commands
Implement generic read and write commands. Selection of the proper data
type for packets is done automatically based on the number of parameters
or payload length.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 4a4e9d7ccc16..524655509cf1 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -155,6 +155,12 @@ int mipi_dsi_attach(struct mipi_dsi_device *dsi);
int mipi_dsi_detach(struct mipi_dsi_device *dsi);
int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
u16 value);
+
+ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
+ size_t size);
+ssize_t mipi_dsi_generic_read(struct mipi_dsi_device *dsi, const void *params,
+ size_t num_params, void *data, size_t size);
+
ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
const void *data, size_t len);
ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
--
cgit v1.2.1
From 42fe1e755d08b80c8be8eec5120946142950b931 Mon Sep 17 00:00:00 2001
From: YoungJun Cho <yj44.cho@samsung.com>
Date: Tue, 5 Aug 2014 10:38:31 +0200
Subject: drm/dsi: Implement some standard DCS commands
Add helpers for the {enter,exit}_sleep_mode, set_display_{on,off} and
set_tear_{on,off} DCS commands.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
[treding: kerneldoc and other minor cleanup]
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 524655509cf1..b2106ad2dd7f 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -161,12 +161,31 @@ ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
ssize_t mipi_dsi_generic_read(struct mipi_dsi_device *dsi, const void *params,
size_t num_params, void *data, size_t size);
+/**
+ * enum mipi_dsi_dcs_tear_mode - Tearing Effect Output Line mode
+ * @MIPI_DSI_DCS_TEAR_MODE_VBLANK: the TE output line consists of V-Blanking
+ * information only
+ * @MIPI_DSI_DCS_TEAR_MODE_VHBLANK : the TE output line consists of both
+ * V-Blanking and H-Blanking information
+ */
+enum mipi_dsi_dcs_tear_mode {
+ MIPI_DSI_DCS_TEAR_MODE_VBLANK,
+ MIPI_DSI_DCS_TEAR_MODE_VHBLANK,
+};
+
ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
const void *data, size_t len);
ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
const void *data, size_t len);
ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
size_t len);
+int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
+ enum mipi_dsi_dcs_tear_mode mode);
/**
* struct mipi_dsi_driver - DSI driver
--
cgit v1.2.1
From 009081e0874d28b504ffa1842f6ddfafd2dd36fc Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 10:41:13 +0200
Subject: drm/dsi: Add to DocBook documentation
Integrate the MIPI DSI helpers into DocBook and clean up various
kerneldoc warnings. Also add a brief DOC section and clarify some
aspects of the mipi_dsi_host struct's .transfer() operation.
Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index b2106ad2dd7f..31678cecd891 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -26,6 +26,7 @@ struct mipi_dsi_device;
* struct mipi_dsi_msg - read/write DSI buffer
* @channel: virtual channel id
* @type: payload data type
+ * @flags: flags controlling this message transmission
* @tx_len: length of @tx_buf
* @tx_buf: data to be written
* @rx_len: length of @rx_buf
@@ -68,8 +69,19 @@ int mipi_dsi_create_packet(struct mipi_dsi_packet *packet,
* struct mipi_dsi_host_ops - DSI bus operations
* @attach: attach DSI device to DSI host
* @detach: detach DSI device from DSI host
- * @transfer: send and/or receive DSI packet, return number of received bytes,
- * or error
+ * @transfer: transmit a DSI packet
+ *
+ * DSI packets transmitted by .transfer() are passed in as mipi_dsi_msg
+ * structures. This structure contains information about the type of packet
+ * being transmitted as well as the transmit and receive buffers. When an
+ * error is encountered during transmission, this function will return a
+ * negative error code. On success it shall return the number of bytes
+ * transmitted for write packets or the number of bytes received for read
+ * packets.
+ *
+ * Note that typically DSI packet transmission is atomic, so the .transfer()
+ * function will seldomly return anything other than the number of bytes
+ * contained in the transmit buffer on success.
*/
struct mipi_dsi_host_ops {
int (*attach)(struct mipi_dsi_host *host,
--
cgit v1.2.1
From 083d573fd013c9996d7462d39b894d360311d750 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 11:14:02 +0200
Subject: drm/dsi: Implement DCS nop command
Provide a small convenience wrapper that transmits a DCS nop command.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 31678cecd891..cbf44867e410 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -191,6 +191,7 @@ ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
const void *data, size_t len);
ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
size_t len);
+int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
--
cgit v1.2.1
From 2f16b89737e24b729305dcd4a3573c175615aa4c Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 11:15:15 +0200
Subject: drm/dsi: Implement DCS soft_reset command
Provide a small convenience wrapper that transmits a DCS soft_reset
command.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index cbf44867e410..de1d94cba217 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -192,6 +192,7 @@ ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
size_t len);
int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
--
cgit v1.2.1
From 3d9a8fcf1c6a9032eb389d3c90323ae980c9d50a Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 11:17:06 +0200
Subject: drm/dsi: Implement DCS get_power_mode command
Provide a small convenience wrapper that transmits a DCS get_power_mode
command. A set of bitmasks for the mode bits is also provided.
Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index de1d94cba217..79588c5a99d4 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -185,6 +185,12 @@ enum mipi_dsi_dcs_tear_mode {
MIPI_DSI_DCS_TEAR_MODE_VHBLANK,
};
+#define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2)
+#define MIPI_DSI_DCS_POWER_MODE_NORMAL (1 << 3)
+#define MIPI_DSI_DCS_POWER_MODE_SLEEP (1 << 4)
+#define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5)
+#define MIPI_DSI_DCS_POWER_MODE_IDLE (1 << 6)
+
ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
const void *data, size_t len);
ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
@@ -193,6 +199,7 @@ ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
size_t len);
int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
--
cgit v1.2.1
From 5cc0af16fc08cfb749fd0635e5e9187c31826827 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 11:18:46 +0200
Subject: drm/dsi: Implement DCS {get,set}_pixel_format commands
Provide small convenience wrappers to query or set the pixel format used
by the interface.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 79588c5a99d4..79927f2d4b6c 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -200,6 +200,7 @@ ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
+int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format);
int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
@@ -207,6 +208,7 @@ int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
enum mipi_dsi_dcs_tear_mode mode);
+int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
/**
* struct mipi_dsi_driver - DSI driver
--
cgit v1.2.1
From 3b46d4a0def157e77000e252bf5caae7d3defe1b Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 5 Aug 2014 11:20:25 +0200
Subject: drm/dsi: Implement DCS set_{column,page}_address commands
Provide small convenience wrappers to set the column and page extents of
the frame memory accessed by the host processors.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 79927f2d4b6c..061a792daf7d 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -205,6 +205,10 @@ int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
+int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
+ u16 end);
+int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
+ u16 end);
int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
enum mipi_dsi_dcs_tear_mode mode);
--
cgit v1.2.1
From 3ef0592426da2e21bd3a265e9376cddffff931c1 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Wed, 6 Aug 2014 08:53:39 +0200
Subject: drm/dsi: Resolve MIPI DSI device from phandle
Add a function, of_find_mipi_dsi_device_by_node(), that can be used to
resolve a phandle to a MIPI DSI device.
Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 061a792daf7d..ea0d982058c3 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -163,6 +163,7 @@ static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
return container_of(dev, struct mipi_dsi_device, dev);
}
+struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);
int mipi_dsi_attach(struct mipi_dsi_device *dsi);
int mipi_dsi_detach(struct mipi_dsi_device *dsi);
int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
--
cgit v1.2.1
From 99035e99310a5e779b0b8f44c7d3f5814fd2ec9c Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 4 Nov 2014 16:09:56 +0100
Subject: drm/dsi: Do not require .owner field to be set
Drivers now no longer need to set the .owner field. It will be
automatically set at registration time.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drm_mipi_dsi.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index ea0d982058c3..f1d8d0dbb4f1 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -245,9 +245,13 @@ static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device *dsi, void *data)
dev_set_drvdata(&dsi->dev, data);
}
-int mipi_dsi_driver_register(struct mipi_dsi_driver *driver);
+int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver,
+ struct module *owner);
void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver);
+#define mipi_dsi_driver_register(driver) \
+ mipi_dsi_driver_register_full(driver, THIS_MODULE)
+
#define module_mipi_dsi_driver(__mipi_dsi_driver) \
module_driver(__mipi_dsi_driver, mipi_dsi_driver_register, \
mipi_dsi_driver_unregister)
--
cgit v1.2.1
From aa1b6fbcbeaca21038db3e7a98d739786ae93511 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:25:31 +0100
Subject: crypto: doc - RNG API documentation
The API function calls exported by the kernel crypto API for RNGs to
be used by consumers are documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/rng.h | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
(limited to 'include')
diff --git a/include/crypto/rng.h b/include/crypto/rng.h
index c93f9b917925..a16fb10142bf 100644
--- a/include/crypto/rng.h
+++ b/include/crypto/rng.h
@@ -20,11 +20,38 @@ extern struct crypto_rng *crypto_default_rng;
int crypto_get_default_rng(void);
void crypto_put_default_rng(void);
+/**
+ * DOC: Random number generator API
+ *
+ * The random number generator API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_RNG (listed as type "rng" in /proc/crypto)
+ */
+
static inline struct crypto_rng *__crypto_rng_cast(struct crypto_tfm *tfm)
{
return (struct crypto_rng *)tfm;
}
+/**
+ * crypto_alloc_rng() -- allocate RNG handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * message digest cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for a random number generator. The returned struct
+ * crypto_rng is the cipher handle that is required for any subsequent
+ * API invocation for that random number generator.
+ *
+ * For all random number generators, this call creates a new private copy of
+ * the random number generator that does not share a state with other
+ * instances. The only exception is the "krng" random number generator which
+ * is a kernel crypto API use case for the get_random_bytes() function of the
+ * /dev/random driver.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
static inline struct crypto_rng *crypto_alloc_rng(const char *alg_name,
u32 type, u32 mask)
{
@@ -40,6 +67,14 @@ static inline struct crypto_tfm *crypto_rng_tfm(struct crypto_rng *tfm)
return &tfm->base;
}
+/**
+ * crypto_rng_alg - obtain name of RNG
+ * @tfm: cipher handle
+ *
+ * Return the generic name (cra_name) of the initialized random number generator
+ *
+ * Return: generic name string
+ */
static inline struct rng_alg *crypto_rng_alg(struct crypto_rng *tfm)
{
return &crypto_rng_tfm(tfm)->__crt_alg->cra_rng;
@@ -50,23 +85,68 @@ static inline struct rng_tfm *crypto_rng_crt(struct crypto_rng *tfm)
return &crypto_rng_tfm(tfm)->crt_rng;
}
+/**
+ * crypto_free_rng() - zeroize and free RNG handle
+ * @tfm: cipher handle to be freed
+ */
static inline void crypto_free_rng(struct crypto_rng *tfm)
{
crypto_free_tfm(crypto_rng_tfm(tfm));
}
+/**
+ * crypto_rng_get_bytes() - get random number
+ * @tfm: cipher handle
+ * @rdata: output buffer holding the random numbers
+ * @dlen: length of the output buffer
+ *
+ * This function fills the caller-allocated buffer with random numbers using the
+ * random number generator referenced by the cipher handle.
+ *
+ * Return: > 0 function was successful and returns the number of generated
+ * bytes; < 0 if an error occurred
+ */
static inline int crypto_rng_get_bytes(struct crypto_rng *tfm,
u8 *rdata, unsigned int dlen)
{
return crypto_rng_crt(tfm)->rng_gen_random(tfm, rdata, dlen);
}
+/**
+ * crypto_rng_reset() - re-initialize the RNG
+ * @tfm: cipher handle
+ * @seed: seed input data
+ * @slen: length of the seed input data
+ *
+ * The reset function completely re-initializes the random number generator
+ * referenced by the cipher handle by clearing the current state. The new state
+ * is initialized with the caller provided seed or automatically, depending
+ * on the random number generator type (the ANSI X9.31 RNG requires
+ * caller-provided seed, the SP800-90A DRBGs perform an automatic seeding).
+ * The seed is provided as a parameter to this function call. The provided seed
+ * should have the length of the seed size defined for the random number
+ * generator as defined by crypto_rng_seedsize.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
static inline int crypto_rng_reset(struct crypto_rng *tfm,
u8 *seed, unsigned int slen)
{
return crypto_rng_crt(tfm)->rng_reset(tfm, seed, slen);
}
+/**
+ * crypto_rng_seedsize() - obtain seed size of RNG
+ * @tfm: cipher handle
+ *
+ * The function returns the seed size for the random number generator
+ * referenced by the cipher handle. This value may be zero if the random
+ * number generator does not implement or require a reseeding. For example,
+ * the SP800-90A DRBGs implement an automated reseeding after reaching a
+ * pre-defined threshold.
+ *
+ * Return: seed size for the random number generator
+ */
static inline int crypto_rng_seedsize(struct crypto_rng *tfm)
{
return crypto_rng_alg(tfm)->seedsize;
--
cgit v1.2.1
From 5d8c723f61f2e6dacbd02d80a516115993c4f292 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:26:03 +0100
Subject: crypto: doc - hash data structures
The hash data structures needed to be filled in by cipher developers are
documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/hash.h | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
(limited to 'include')
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 74b13ec1ebd4..bf458fc272aa 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -17,6 +17,28 @@
struct crypto_ahash;
+/**
+ * DOC: Message Digest Algorithm Definitions
+ *
+ * These data structures define modular message digest algorithm
+ * implementations, managed via crypto_register_ahash(),
+ * crypto_register_shash(), crypto_unregister_ahash() and
+ * crypto_unregister_shash().
+ */
+
+/**
+ * struct hash_alg_common - define properties of message digest
+ * @digestsize: Size of the result of the transformation. A buffer of this size
+ * must be available to the @final and @finup calls, so they can
+ * store the resulting hash into it. For various predefined sizes,
+ * search include/crypto/ using
+ * git grep _DIGEST_SIZE include/crypto.
+ * @statesize: Size of the block for partial state of the transformation. A
+ * buffer of this size must be passed to the @export function as it
+ * will save the partial state of the transformation into it. On the
+ * other side, the @import function will load the state from a
+ * buffer of this size as well.
+ */
struct hash_alg_common {
unsigned int digestsize;
unsigned int statesize;
@@ -37,6 +59,62 @@ struct ahash_request {
void *__ctx[] CRYPTO_MINALIGN_ATTR;
};
+/**
+ * struct ahash_alg - asynchronous message digest definition
+ * @init: Initialize the transformation context. Intended only to initialize the
+ * state of the HASH transformation at the begining. This shall fill in
+ * the internal structures used during the entire duration of the whole
+ * transformation. No data processing happens at this point.
+ * @update: Push a chunk of data into the driver for transformation. This
+ * function actually pushes blocks of data from upper layers into the
+ * driver, which then passes those to the hardware as seen fit. This
+ * function must not finalize the HASH transformation by calculating the
+ * final message digest as this only adds more data into the
+ * transformation. This function shall not modify the transformation
+ * context, as this function may be called in parallel with the same
+ * transformation object. Data processing can happen synchronously
+ * [SHASH] or asynchronously [AHASH] at this point.
+ * @final: Retrieve result from the driver. This function finalizes the
+ * transformation and retrieves the resulting hash from the driver and
+ * pushes it back to upper layers. No data processing happens at this
+ * point.
+ * @finup: Combination of @update and @final. This function is effectively a
+ * combination of @update and @final calls issued in sequence. As some
+ * hardware cannot do @update and @final separately, this callback was
+ * added to allow such hardware to be used at least by IPsec. Data
+ * processing can happen synchronously [SHASH] or asynchronously [AHASH]
+ * at this point.
+ * @digest: Combination of @init and @update and @final. This function
+ * effectively behaves as the entire chain of operations, @init,
+ * @update and @final issued in sequence. Just like @finup, this was
+ * added for hardware which cannot do even the @finup, but can only do
+ * the whole transformation in one run. Data processing can happen
+ * synchronously [SHASH] or asynchronously [AHASH] at this point.
+ * @setkey: Set optional key used by the hashing algorithm. Intended to push
+ * optional key used by the hashing algorithm from upper layers into
+ * the driver. This function can store the key in the transformation
+ * context or can outright program it into the hardware. In the former
+ * case, one must be careful to program the key into the hardware at
+ * appropriate time and one must be careful that .setkey() can be
+ * called multiple times during the existence of the transformation
+ * object. Not all hashing algorithms do implement this function as it
+ * is only needed for keyed message digests. SHAx/MDx/CRCx do NOT
+ * implement this function. HMAC(MDx)/HMAC(SHAx)/CMAC(AES) do implement
+ * this function. This function must be called before any other of the
+ * @init, @update, @final, @finup, @digest is called. No data
+ * processing happens at this point.
+ * @export: Export partial state of the transformation. This function dumps the
+ * entire state of the ongoing transformation into a provided block of
+ * data so it can be @import 'ed back later on. This is useful in case
+ * you want to save partial result of the transformation after
+ * processing certain amount of data and reload this partial result
+ * multiple times later on for multiple re-use. No data processing
+ * happens at this point.
+ * @import: Import partial state of the transformation. This function loads the
+ * entire state of the ongoing transformation from a provided block of
+ * data so the transformation can continue from this point onward. No
+ * data processing happens at this point.
+ */
struct ahash_alg {
int (*init)(struct ahash_request *req);
int (*update)(struct ahash_request *req);
@@ -63,6 +141,23 @@ struct shash_desc {
crypto_shash_descsize(ctx)] CRYPTO_MINALIGN_ATTR; \
struct shash_desc *shash = (struct shash_desc *)__##shash##_desc
+/**
+ * struct shash_alg - synchronous message digest definition
+ * @init: see struct ahash_alg
+ * @update: see struct ahash_alg
+ * @final: see struct ahash_alg
+ * @finup: see struct ahash_alg
+ * @digest: see struct ahash_alg
+ * @export: see struct ahash_alg
+ * @import: see struct ahash_alg
+ * @setkey: see struct ahash_alg
+ * @digestsize: see struct ahash_alg
+ * @statesize: see struct ahash_alg
+ * @dedcsize: Size of the operational state for the message digest. This state
+ * size is the memory size that needs to be allocated for
+ * shash_desc.__ctx
+ * @base: internally used
+ */
struct shash_alg {
int (*init)(struct shash_desc *desc);
int (*update)(struct shash_desc *desc, const u8 *data,
--
cgit v1.2.1
From 90240ffb127729713cd7d9c1b5c1c0c9451681cd Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:26:41 +0100
Subject: crypto: doc - AHASH API documentation
The API function calls exported by the kernel crypto API for AHASHes
to be used by consumers are documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/hash.h | 228 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 228 insertions(+)
(limited to 'include')
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index bf458fc272aa..b2c193acc1ab 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -202,11 +202,35 @@ struct crypto_shash {
struct crypto_tfm base;
};
+/**
+ * DOC: Asynchronous Message Digest API
+ *
+ * The asynchronous message digest API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_AHASH (listed as type "ahash" in /proc/crypto)
+ *
+ * The asynchronous cipher operation discussion provided for the
+ * CRYPTO_ALG_TYPE_ABLKCIPHER API applies here as well.
+ */
+
static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
{
return container_of(tfm, struct crypto_ahash, base);
}
+/**
+ * crypto_alloc_ahash() - allocate ahash cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * ahash cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for an ahash. The returned struct
+ * crypto_ahash is the cipher handle that is required for any subsequent
+ * API invocation for that ahash.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type,
u32 mask);
@@ -215,6 +239,10 @@ static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
return &tfm->base;
}
+/**
+ * crypto_free_ahash() - zeroize and free the ahash handle
+ * @tfm: cipher handle to be freed
+ */
static inline void crypto_free_ahash(struct crypto_ahash *tfm)
{
crypto_destroy_tfm(tfm, crypto_ahash_tfm(tfm));
@@ -238,6 +266,16 @@ static inline struct hash_alg_common *crypto_hash_alg_common(
return __crypto_hash_alg_common(crypto_ahash_tfm(tfm)->__crt_alg);
}
+/**
+ * crypto_ahash_digestsize() - obtain message digest size
+ * @tfm: cipher handle
+ *
+ * The size for the message digest created by the message digest cipher
+ * referenced with the cipher handle is returned.
+ *
+ *
+ * Return: message digest size of cipher
+ */
static inline unsigned int crypto_ahash_digestsize(struct crypto_ahash *tfm)
{
return crypto_hash_alg_common(tfm)->digestsize;
@@ -263,12 +301,32 @@ static inline void crypto_ahash_clear_flags(struct crypto_ahash *tfm, u32 flags)
crypto_tfm_clear_flags(crypto_ahash_tfm(tfm), flags);
}
+/**
+ * crypto_ahash_reqtfm() - obtain cipher handle from request
+ * @req: asynchronous request handle that contains the reference to the ahash
+ * cipher handle
+ *
+ * Return the ahash cipher handle that is registered with the asynchronous
+ * request handle ahash_request.
+ *
+ * Return: ahash cipher handle
+ */
static inline struct crypto_ahash *crypto_ahash_reqtfm(
struct ahash_request *req)
{
return __crypto_ahash_cast(req->base.tfm);
}
+/**
+ * crypto_ahash_reqsize() - obtain size of the request data structure
+ * @tfm: cipher handle
+ *
+ * Return the size of the ahash state size. With the crypto_ahash_export
+ * function, the caller can export the state into a buffer whose size is
+ * defined with this function.
+ *
+ * Return: size of the ahash state
+ */
static inline unsigned int crypto_ahash_reqsize(struct crypto_ahash *tfm)
{
return tfm->reqsize;
@@ -279,38 +337,166 @@ static inline void *ahash_request_ctx(struct ahash_request *req)
return req->__ctx;
}
+/**
+ * crypto_ahash_setkey - set key for cipher handle
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the ahash cipher. The cipher
+ * handle must point to a keyed hash in order for this function to succeed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
unsigned int keylen);
+
+/**
+ * crypto_ahash_finup() - update and finalize message digest
+ * @req: reference to the ahash_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * This function is a "short-hand" for the function calls of
+ * crypto_ahash_update and crypto_shash_final. The parameters have the same
+ * meaning as discussed for those separate functions.
+ *
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
int crypto_ahash_finup(struct ahash_request *req);
+
+/**
+ * crypto_ahash_final() - calculate message digest
+ * @req: reference to the ahash_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Finalize the message digest operation and create the message digest
+ * based on all data added to the cipher handle. The message digest is placed
+ * into the output buffer registered with the ahash_request handle.
+ *
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
int crypto_ahash_final(struct ahash_request *req);
+
+/**
+ * crypto_ahash_digest() - calculate message digest for a buffer
+ * @req: reference to the ahash_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * This function is a "short-hand" for the function calls of crypto_ahash_init,
+ * crypto_ahash_update and crypto_ahash_final. The parameters have the same
+ * meaning as discussed for those separate three functions.
+ *
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
int crypto_ahash_digest(struct ahash_request *req);
+/**
+ * crypto_ahash_export() - extract current message digest state
+ * @req: reference to the ahash_request handle whose state is exported
+ * @out: output buffer of sufficient size that can hold the hash state
+ *
+ * This function exports the hash state of the ahash_request handle into the
+ * caller-allocated output buffer out which must have sufficient size (e.g. by
+ * calling crypto_ahash_reqsize).
+ *
+ * Return: 0 if the export was successful; < 0 if an error occurred
+ */
static inline int crypto_ahash_export(struct ahash_request *req, void *out)
{
return crypto_ahash_reqtfm(req)->export(req, out);
}
+/**
+ * crypto_ahash_import() - import message digest state
+ * @req: reference to ahash_request handle the state is imported into
+ * @in: buffer holding the state
+ *
+ * This function imports the hash state into the ahash_request handle from the
+ * input buffer. That buffer should have been generated with the
+ * crypto_ahash_export function.
+ *
+ * Return: 0 if the import was successful; < 0 if an error occurred
+ */
static inline int crypto_ahash_import(struct ahash_request *req, const void *in)
{
return crypto_ahash_reqtfm(req)->import(req, in);
}
+/**
+ * crypto_ahash_init() - (re)initialize message digest handle
+ * @req: ahash_request handle that already is initialized with all necessary
+ * data using the ahash_request_* API functions
+ *
+ * The call (re-)initializes the message digest referenced by the ahash_request
+ * handle. Any potentially existing state created by previous operations is
+ * discarded.
+ *
+ * Return: 0 if the message digest initialization was successful; < 0 if an
+ * error occurred
+ */
static inline int crypto_ahash_init(struct ahash_request *req)
{
return crypto_ahash_reqtfm(req)->init(req);
}
+/**
+ * crypto_ahash_update() - add data to message digest for processing
+ * @req: ahash_request handle that was previously initialized with the
+ * crypto_ahash_init call.
+ *
+ * Updates the message digest state of the &ahash_request handle. The input data
+ * is pointed to by the scatter/gather list registered in the &ahash_request
+ * handle
+ *
+ * Return: 0 if the message digest update was successful; < 0 if an error
+ * occurred
+ */
static inline int crypto_ahash_update(struct ahash_request *req)
{
return crypto_ahash_reqtfm(req)->update(req);
}
+/**
+ * DOC: Asynchronous Hash Request Handle
+ *
+ * The &ahash_request data structure contains all pointers to data
+ * required for the asynchronous cipher operation. This includes the cipher
+ * handle (which can be used by multiple &ahash_request instances), pointer
+ * to plaintext and the message digest output buffer, asynchronous callback
+ * function, etc. It acts as a handle to the ahash_request_* API calls in a
+ * similar way as ahash handle to the crypto_ahash_* API calls.
+ */
+
+/**
+ * ahash_request_set_tfm() - update cipher handle reference in request
+ * @req: request handle to be modified
+ * @tfm: cipher handle that shall be added to the request handle
+ *
+ * Allow the caller to replace the existing ahash handle in the request
+ * data structure with a different one.
+ */
static inline void ahash_request_set_tfm(struct ahash_request *req,
struct crypto_ahash *tfm)
{
req->base.tfm = crypto_ahash_tfm(tfm);
}
+/**
+ * ahash_request_alloc() - allocate request data structure
+ * @tfm: cipher handle to be registered with the request
+ * @gfp: memory allocation flag that is handed to kmalloc by the API call.
+ *
+ * Allocate the request data structure that must be used with the ahash
+ * message digest API calls. During
+ * the allocation, the provided ahash handle
+ * is registered in the request data structure.
+ *
+ * Return: allocated request handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
static inline struct ahash_request *ahash_request_alloc(
struct crypto_ahash *tfm, gfp_t gfp)
{
@@ -325,6 +511,10 @@ static inline struct ahash_request *ahash_request_alloc(
return req;
}
+/**
+ * ahash_request_free() - zeroize and free the request data structure
+ * @req: request data structure cipher handle to be freed
+ */
static inline void ahash_request_free(struct ahash_request *req)
{
kzfree(req);
@@ -336,6 +526,31 @@ static inline struct ahash_request *ahash_request_cast(
return container_of(req, struct ahash_request, base);
}
+/**
+ * ahash_request_set_callback() - set asynchronous callback function
+ * @req: request handle
+ * @flags: specify zero or an ORing of the flags
+ * CRYPTO_TFM_REQ_MAY_BACKLOG the request queue may back log and
+ * increase the wait queue beyond the initial maximum size;
+ * CRYPTO_TFM_REQ_MAY_SLEEP the request processing may sleep
+ * @compl: callback function pointer to be registered with the request handle
+ * @data: The data pointer refers to memory that is not used by the kernel
+ * crypto API, but provided to the callback function for it to use. Here,
+ * the caller can provide a reference to memory the callback function can
+ * operate on. As the callback function is invoked asynchronously to the
+ * related functionality, it may need to access data structures of the
+ * related functionality which can be referenced using this pointer. The
+ * callback function can access the memory via the "data" field in the
+ * &crypto_async_request data structure provided to the callback function.
+ *
+ * This function allows setting the callback function that is triggered once
+ * the cipher operation completes.
+ *
+ * The callback function is registered with the &ahash_request handle and
+ * must comply with the following template
+ *
+ * void callback_function(struct crypto_async_request *req, int error)
+ */
static inline void ahash_request_set_callback(struct ahash_request *req,
u32 flags,
crypto_completion_t compl,
@@ -346,6 +561,19 @@ static inline void ahash_request_set_callback(struct ahash_request *req,
req->base.flags = flags;
}
+/**
+ * ahash_request_set_crypt() - set data buffers
+ * @req: ahash_request handle to be updated
+ * @src: source scatter/gather list
+ * @result: buffer that is filled with the message digest -- the caller must
+ * ensure that the buffer has sufficient space by, for example, calling
+ * crypto_ahash_digestsize()
+ * @nbytes: number of bytes to process from the source scatter/gather list
+ *
+ * By using this call, the caller references the source scatter/gather list.
+ * The source scatter/gather list points to the data the message digest is to
+ * be calculated for.
+ */
static inline void ahash_request_set_crypt(struct ahash_request *req,
struct scatterlist *src, u8 *result,
unsigned int nbytes)
--
cgit v1.2.1
From 968ab291078006de022b2245702a050ccdc32cd3 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:27:16 +0100
Subject: crypto: doc - SHASH API documentation
The API function calls exported by the kernel crypto API for SHASHes
to be used by consumers are documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/hash.h | 164 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 164 insertions(+)
(limited to 'include')
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index b2c193acc1ab..3d66e8bd0932 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -583,6 +583,33 @@ static inline void ahash_request_set_crypt(struct ahash_request *req,
req->result = result;
}
+/**
+ * DOC: Synchronous Message Digest API
+ *
+ * The synchronous message digest API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_SHASH (listed as type "shash" in /proc/crypto)
+ *
+ * The message digest API is able to maintain state information for the
+ * caller.
+ *
+ * The synchronous message digest API can store user-related context in in its
+ * shash_desc request data structure.
+ */
+
+/**
+ * crypto_alloc_shash() - allocate message digest handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * message digest cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for a message digest. The returned &struct
+ * crypto_shash is the cipher handle that is required for any subsequent
+ * API invocation for that message digest.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type,
u32 mask);
@@ -591,6 +618,10 @@ static inline struct crypto_tfm *crypto_shash_tfm(struct crypto_shash *tfm)
return &tfm->base;
}
+/**
+ * crypto_free_shash() - zeroize and free the message digest handle
+ * @tfm: cipher handle to be freed
+ */
static inline void crypto_free_shash(struct crypto_shash *tfm)
{
crypto_destroy_tfm(tfm, crypto_shash_tfm(tfm));
@@ -602,6 +633,15 @@ static inline unsigned int crypto_shash_alignmask(
return crypto_tfm_alg_alignmask(crypto_shash_tfm(tfm));
}
+/**
+ * crypto_shash_blocksize() - obtain block size for cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the message digest cipher referenced with the cipher
+ * handle is returned.
+ *
+ * Return: block size of cipher
+ */
static inline unsigned int crypto_shash_blocksize(struct crypto_shash *tfm)
{
return crypto_tfm_alg_blocksize(crypto_shash_tfm(tfm));
@@ -617,6 +657,15 @@ static inline struct shash_alg *crypto_shash_alg(struct crypto_shash *tfm)
return __crypto_shash_alg(crypto_shash_tfm(tfm)->__crt_alg);
}
+/**
+ * crypto_shash_digestsize() - obtain message digest size
+ * @tfm: cipher handle
+ *
+ * The size for the message digest created by the message digest cipher
+ * referenced with the cipher handle is returned.
+ *
+ * Return: digest size of cipher
+ */
static inline unsigned int crypto_shash_digestsize(struct crypto_shash *tfm)
{
return crypto_shash_alg(tfm)->digestsize;
@@ -642,6 +691,21 @@ static inline void crypto_shash_clear_flags(struct crypto_shash *tfm, u32 flags)
crypto_tfm_clear_flags(crypto_shash_tfm(tfm), flags);
}
+/**
+ * crypto_shash_descsize() - obtain the operational state size
+ * @tfm: cipher handle
+ *
+ * The size of the operational state the cipher needs during operation is
+ * returned for the hash referenced with the cipher handle. This size is
+ * required to calculate the memory requirements to allow the caller allocating
+ * sufficient memory for operational state.
+ *
+ * The operational state is defined with struct shash_desc where the size of
+ * that data structure is to be calculated as
+ * sizeof(struct shash_desc) + crypto_shash_descsize(alg)
+ *
+ * Return: size of the operational state
+ */
static inline unsigned int crypto_shash_descsize(struct crypto_shash *tfm)
{
return tfm->descsize;
@@ -652,29 +716,129 @@ static inline void *shash_desc_ctx(struct shash_desc *desc)
return desc->__ctx;
}
+/**
+ * crypto_shash_setkey() - set key for message digest
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the keyed message digest cipher. The
+ * cipher handle must point to a keyed message digest cipher in order for this
+ * function to succeed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
unsigned int keylen);
+
+/**
+ * crypto_shash_digest() - calculate message digest for buffer
+ * @desc: see crypto_shash_final()
+ * @data: see crypto_shash_update()
+ * @len: see crypto_shash_update()
+ * @out: see crypto_shash_final()
+ *
+ * This function is a "short-hand" for the function calls of crypto_shash_init,
+ * crypto_shash_update and crypto_shash_final. The parameters have the same
+ * meaning as discussed for those separate three functions.
+ *
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out);
+/**
+ * crypto_shash_export() - extract operational state for message digest
+ * @desc: reference to the operational state handle whose state is exported
+ * @out: output buffer of sufficient size that can hold the hash state
+ *
+ * This function exports the hash state of the operational state handle into the
+ * caller-allocated output buffer out which must have sufficient size (e.g. by
+ * calling crypto_shash_descsize).
+ *
+ * Return: 0 if the export creation was successful; < 0 if an error occurred
+ */
static inline int crypto_shash_export(struct shash_desc *desc, void *out)
{
return crypto_shash_alg(desc->tfm)->export(desc, out);
}
+/**
+ * crypto_shash_import() - import operational state
+ * @desc: reference to the operational state handle the state imported into
+ * @in: buffer holding the state
+ *
+ * This function imports the hash state into the operational state handle from
+ * the input buffer. That buffer should have been generated with the
+ * crypto_ahash_export function.
+ *
+ * Return: 0 if the import was successful; < 0 if an error occurred
+ */
static inline int crypto_shash_import(struct shash_desc *desc, const void *in)
{
return crypto_shash_alg(desc->tfm)->import(desc, in);
}
+/**
+ * crypto_shash_init() - (re)initialize message digest
+ * @desc: operational state handle that is already filled
+ *
+ * The call (re-)initializes the message digest referenced by the
+ * operational state handle. Any potentially existing state created by
+ * previous operations is discarded.
+ *
+ * Return: 0 if the message digest initialization was successful; < 0 if an
+ * error occurred
+ */
static inline int crypto_shash_init(struct shash_desc *desc)
{
return crypto_shash_alg(desc->tfm)->init(desc);
}
+/**
+ * crypto_shash_update() - add data to message digest for processing
+ * @desc: operational state handle that is already initialized
+ * @data: input data to be added to the message digest
+ * @len: length of the input data
+ *
+ * Updates the message digest state of the operational state handle.
+ *
+ * Return: 0 if the message digest update was successful; < 0 if an error
+ * occurred
+ */
int crypto_shash_update(struct shash_desc *desc, const u8 *data,
unsigned int len);
+
+/**
+ * crypto_shash_final() - calculate message digest
+ * @desc: operational state handle that is already filled with data
+ * @out: output buffer filled with the message digest
+ *
+ * Finalize the message digest operation and create the message digest
+ * based on all data added to the cipher handle. The message digest is placed
+ * into the output buffer. The caller must ensure that the output buffer is
+ * large enough by using crypto_shash_digestsize.
+ *
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
int crypto_shash_final(struct shash_desc *desc, u8 *out);
+
+/**
+ * crypto_shash_finup() - calculate message digest of buffer
+ * @desc: see crypto_shash_final()
+ * @data: see crypto_shash_update()
+ * @len: see crypto_shash_update()
+ * @out: see crypto_shash_final()
+ *
+ * This function is a "short-hand" for the function calls of
+ * crypto_shash_update and crypto_shash_final. The parameters have the same
+ * meaning as discussed for those separate functions.
+ *
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
int crypto_shash_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out);
--
cgit v1.2.1
From 0d7f488f0305a9caffab0a18a882f9980f8bc936 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:27:49 +0100
Subject: crypto: doc - cipher data structures
The data structure of struct crypto_alg together with various other
data structures needed by cipher developers is documented wit all
parameters that can be set by a developer of a transformation. All
parameters that are internal to the crypto API are marked as such.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/linux/crypto.h | 246 ++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 243 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index d45e949699ea..752360e1e8fe 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -127,6 +127,13 @@ struct skcipher_givcrypt_request;
typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);
+/**
+ * DOC: Block Cipher Context Data Structures
+ *
+ * These data structures define the operating context for each block cipher
+ * type.
+ */
+
struct crypto_async_request {
struct list_head list;
crypto_completion_t complete;
@@ -194,9 +201,63 @@ struct hash_desc {
u32 flags;
};
-/*
- * Algorithms: modular crypto algorithm implementations, managed
- * via crypto_register_alg() and crypto_unregister_alg().
+/**
+ * DOC: Block Cipher Algorithm Definitions
+ *
+ * These data structures define modular crypto algorithm implementations,
+ * managed via crypto_register_alg() and crypto_unregister_alg().
+ */
+
+/**
+ * struct ablkcipher_alg - asynchronous block cipher definition
+ * @min_keysize: Minimum key size supported by the transformation. This is the
+ * smallest key length supported by this transformation algorithm.
+ * This must be set to one of the pre-defined values as this is
+ * not hardware specific. Possible values for this field can be
+ * found via git grep "_MIN_KEY_SIZE" include/crypto/
+ * @max_keysize: Maximum key size supported by the transformation. This is the
+ * largest key length supported by this transformation algorithm.
+ * This must be set to one of the pre-defined values as this is
+ * not hardware specific. Possible values for this field can be
+ * found via git grep "_MAX_KEY_SIZE" include/crypto/
+ * @setkey: Set key for the transformation. This function is used to either
+ * program a supplied key into the hardware or store the key in the
+ * transformation context for programming it later. Note that this
+ * function does modify the transformation context. This function can
+ * be called multiple times during the existence of the transformation
+ * object, so one must make sure the key is properly reprogrammed into
+ * the hardware. This function is also responsible for checking the key
+ * length for validity. In case a software fallback was put in place in
+ * the @cra_init call, this function might need to use the fallback if
+ * the algorithm doesn't support all of the key sizes.
+ * @encrypt: Encrypt a scatterlist of blocks. This function is used to encrypt
+ * the supplied scatterlist containing the blocks of data. The crypto
+ * API consumer is responsible for aligning the entries of the
+ * scatterlist properly and making sure the chunks are correctly
+ * sized. In case a software fallback was put in place in the
+ * @cra_init call, this function might need to use the fallback if
+ * the algorithm doesn't support all of the key sizes. In case the
+ * key was stored in transformation context, the key might need to be
+ * re-programmed into the hardware in this function. This function
+ * shall not modify the transformation context, as this function may
+ * be called in parallel with the same transformation object.
+ * @decrypt: Decrypt a single block. This is a reverse counterpart to @encrypt
+ * and the conditions are exactly the same.
+ * @givencrypt: Update the IV for encryption. With this function, a cipher
+ * implementation may provide the function on how to update the IV
+ * for encryption.
+ * @givdecrypt: Update the IV for decryption. This is the reverse of
+ * @givencrypt .
+ * @geniv: The transformation implementation may use an "IV generator" provided
+ * by the kernel crypto API. Several use cases have a predefined
+ * approach how IVs are to be updated. For such use cases, the kernel
+ * crypto API provides ready-to-use implementations that can be
+ * referenced with this variable.
+ * @ivsize: IV size applicable for transformation. The consumer must provide an
+ * IV of exactly that size to perform the encrypt or decrypt operation.
+ *
+ * All fields except @givencrypt , @givdecrypt , @geniv and @ivsize are
+ * mandatory and must be filled.
*/
struct ablkcipher_alg {
int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
@@ -213,6 +274,32 @@ struct ablkcipher_alg {
unsigned int ivsize;
};
+/**
+ * struct aead_alg - AEAD cipher definition
+ * @maxauthsize: Set the maximum authentication tag size supported by the
+ * transformation. A transformation may support smaller tag sizes.
+ * As the authentication tag is a message digest to ensure the
+ * integrity of the encrypted data, a consumer typically wants the
+ * largest authentication tag possible as defined by this
+ * variable.
+ * @setauthsize: Set authentication size for the AEAD transformation. This
+ * function is used to specify the consumer requested size of the
+ * authentication tag to be either generated by the transformation
+ * during encryption or the size of the authentication tag to be
+ * supplied during the decryption operation. This function is also
+ * responsible for checking the authentication tag size for
+ * validity.
+ * @setkey: see struct ablkcipher_alg
+ * @encrypt: see struct ablkcipher_alg
+ * @decrypt: see struct ablkcipher_alg
+ * @givencrypt: see struct ablkcipher_alg
+ * @givdecrypt: see struct ablkcipher_alg
+ * @geniv: see struct ablkcipher_alg
+ * @ivsize: see struct ablkcipher_alg
+ *
+ * All fields except @givencrypt , @givdecrypt , @geniv and @ivsize are
+ * mandatory and must be filled.
+ */
struct aead_alg {
int (*setkey)(struct crypto_aead *tfm, const u8 *key,
unsigned int keylen);
@@ -228,6 +315,18 @@ struct aead_alg {
unsigned int maxauthsize;
};
+/**
+ * struct blkcipher_alg - synchronous block cipher definition
+ * @min_keysize: see struct ablkcipher_alg
+ * @max_keysize: see struct ablkcipher_alg
+ * @setkey: see struct ablkcipher_alg
+ * @encrypt: see struct ablkcipher_alg
+ * @decrypt: see struct ablkcipher_alg
+ * @geniv: see struct ablkcipher_alg
+ * @ivsize: see struct ablkcipher_alg
+ *
+ * All fields except @geniv and @ivsize are mandatory and must be filled.
+ */
struct blkcipher_alg {
int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen);
@@ -245,6 +344,53 @@ struct blkcipher_alg {
unsigned int ivsize;
};
+/**
+ * struct cipher_alg - single-block symmetric ciphers definition
+ * @cia_min_keysize: Minimum key size supported by the transformation. This is
+ * the smallest key length supported by this transformation
+ * algorithm. This must be set to one of the pre-defined
+ * values as this is not hardware specific. Possible values
+ * for this field can be found via git grep "_MIN_KEY_SIZE"
+ * include/crypto/
+ * @cia_max_keysize: Maximum key size supported by the transformation. This is
+ * the largest key length supported by this transformation
+ * algorithm. This must be set to one of the pre-defined values
+ * as this is not hardware specific. Possible values for this
+ * field can be found via git grep "_MAX_KEY_SIZE"
+ * include/crypto/
+ * @cia_setkey: Set key for the transformation. This function is used to either
+ * program a supplied key into the hardware or store the key in the
+ * transformation context for programming it later. Note that this
+ * function does modify the transformation context. This function
+ * can be called multiple times during the existence of the
+ * transformation object, so one must make sure the key is properly
+ * reprogrammed into the hardware. This function is also
+ * responsible for checking the key length for validity.
+ * @cia_encrypt: Encrypt a single block. This function is used to encrypt a
+ * single block of data, which must be @cra_blocksize big. This
+ * always operates on a full @cra_blocksize and it is not possible
+ * to encrypt a block of smaller size. The supplied buffers must
+ * therefore also be at least of @cra_blocksize size. Both the
+ * input and output buffers are always aligned to @cra_alignmask.
+ * In case either of the input or output buffer supplied by user
+ * of the crypto API is not aligned to @cra_alignmask, the crypto
+ * API will re-align the buffers. The re-alignment means that a
+ * new buffer will be allocated, the data will be copied into the
+ * new buffer, then the processing will happen on the new buffer,
+ * then the data will be copied back into the original buffer and
+ * finally the new buffer will be freed. In case a software
+ * fallback was put in place in the @cra_init call, this function
+ * might need to use the fallback if the algorithm doesn't support
+ * all of the key sizes. In case the key was stored in
+ * transformation context, the key might need to be re-programmed
+ * into the hardware in this function. This function shall not
+ * modify the transformation context, as this function may be
+ * called in parallel with the same transformation object.
+ * @cia_decrypt: Decrypt a single block. This is a reverse counterpart to
+ * @cia_encrypt, and the conditions are exactly the same.
+ *
+ * All fields are mandatory and must be filled.
+ */
struct cipher_alg {
unsigned int cia_min_keysize;
unsigned int cia_max_keysize;
@@ -261,6 +407,25 @@ struct compress_alg {
unsigned int slen, u8 *dst, unsigned int *dlen);
};
+/**
+ * struct rng_alg - random number generator definition
+ * @rng_make_random: The function defined by this variable obtains a random
+ * number. The random number generator transform must generate
+ * the random number out of the context provided with this
+ * call.
+ * @rng_reset: Reset of the random number generator by clearing the entire state.
+ * With the invocation of this function call, the random number
+ * generator shall completely reinitialize its state. If the random
+ * number generator requires a seed for setting up a new state,
+ * the seed must be provided by the consumer while invoking this
+ * function. The required size of the seed is defined with
+ * @seedsize .
+ * @seedsize: The seed size required for a random number generator
+ * initialization defined with this variable. Some random number
+ * generators like the SP800-90A DRBG does not require a seed as the
+ * seeding is implemented internally without the need of support by
+ * the consumer. In this case, the seed size is set to zero.
+ */
struct rng_alg {
int (*rng_make_random)(struct crypto_rng *tfm, u8 *rdata,
unsigned int dlen);
@@ -277,6 +442,81 @@ struct rng_alg {
#define cra_compress cra_u.compress
#define cra_rng cra_u.rng
+/**
+ * struct crypto_alg - definition of a cryptograpic cipher algorithm
+ * @cra_flags: Flags describing this transformation. See include/linux/crypto.h
+ * CRYPTO_ALG_* flags for the flags which go in here. Those are
+ * used for fine-tuning the description of the transformation
+ * algorithm.
+ * @cra_blocksize: Minimum block size of this transformation. The size in bytes
+ * of the smallest possible unit which can be transformed with
+ * this algorithm. The users must respect this value.
+ * In case of HASH transformation, it is possible for a smaller
+ * block than @cra_blocksize to be passed to the crypto API for
+ * transformation, in case of any other transformation type, an
+ * error will be returned upon any attempt to transform smaller
+ * than @cra_blocksize chunks.
+ * @cra_ctxsize: Size of the operational context of the transformation. This
+ * value informs the kernel crypto API about the memory size
+ * needed to be allocated for the transformation context.
+ * @cra_alignmask: Alignment mask for the input and output data buffer. The data
+ * buffer containing the input data for the algorithm must be
+ * aligned to this alignment mask. The data buffer for the
+ * output data must be aligned to this alignment mask. Note that
+ * the Crypto API will do the re-alignment in software, but
+ * only under special conditions and there is a performance hit.
+ * The re-alignment happens at these occasions for different
+ * @cra_u types: cipher -- For both input data and output data
+ * buffer; ahash -- For output hash destination buf; shash --
+ * For output hash destination buf.
+ * This is needed on hardware which is flawed by design and
+ * cannot pick data from arbitrary addresses.
+ * @cra_priority: Priority of this transformation implementation. In case
+ * multiple transformations with same @cra_name are available to
+ * the Crypto API, the kernel will use the one with highest
+ * @cra_priority.
+ * @cra_name: Generic name (usable by multiple implementations) of the
+ * transformation algorithm. This is the name of the transformation
+ * itself. This field is used by the kernel when looking up the
+ * providers of particular transformation.
+ * @cra_driver_name: Unique name of the transformation provider. This is the
+ * name of the provider of the transformation. This can be any
+ * arbitrary value, but in the usual case, this contains the
+ * name of the chip or provider and the name of the
+ * transformation algorithm.
+ * @cra_type: Type of the cryptographic transformation. This is a pointer to
+ * struct crypto_type, which implements callbacks common for all
+ * trasnformation types. There are multiple options:
+ * &crypto_blkcipher_type, &crypto_ablkcipher_type,
+ * &crypto_ahash_type, &crypto_aead_type, &crypto_rng_type.
+ * This field might be empty. In that case, there are no common
+ * callbacks. This is the case for: cipher, compress, shash.
+ * @cra_u: Callbacks implementing the transformation. This is a union of
+ * multiple structures. Depending on the type of transformation selected
+ * by @cra_type and @cra_flags above, the associated structure must be
+ * filled with callbacks. This field might be empty. This is the case
+ * for ahash, shash.
+ * @cra_init: Initialize the cryptographic transformation object. This function
+ * is used to initialize the cryptographic transformation object.
+ * This function is called only once at the instantiation time, right
+ * after the transformation context was allocated. In case the
+ * cryptographic hardware has some special requirements which need to
+ * be handled by software, this function shall check for the precise
+ * requirement of the transformation and put any software fallbacks
+ * in place.
+ * @cra_exit: Deinitialize the cryptographic transformation object. This is a
+ * counterpart to @cra_init, used to remove various changes set in
+ * @cra_init.
+ * @cra_module: Owner of this transformation implementation. Set to THIS_MODULE
+ * @cra_list: internally used
+ * @cra_users: internally used
+ * @cra_refcnt: internally used
+ * @cra_destroy: internally used
+ *
+ * The struct crypto_alg describes a generic Crypto API algorithm and is common
+ * for all of the transformations. Any variable not documented here shall not
+ * be used by a cipher implementation as it is internal to the Crypto API.
+ */
struct crypto_alg {
struct list_head cra_list;
struct list_head cra_users;
--
cgit v1.2.1
From f13ec330a787c2653d4738be1ee887ead1fb3008 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:28:22 +0100
Subject: crypto: doc - ABLKCIPHER API documentation
The API function calls exported by the kernel crypto API for
asynchronous block ciphers to be used by consumers are documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/linux/crypto.h | 206 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 206 insertions(+)
(limited to 'include')
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 752360e1e8fe..39c8fc6d3313 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -821,6 +821,50 @@ static inline u32 crypto_skcipher_mask(u32 mask)
return mask;
}
+/**
+ * DOC: Asynchronous Block Cipher API
+ *
+ * Asynchronous block cipher API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_ABLKCIPHER (listed as type "ablkcipher" in /proc/crypto).
+ *
+ * Asynchronous cipher operations imply that the function invocation for a
+ * cipher request returns immediately before the completion of the operation.
+ * The cipher request is scheduled as a separate kernel thread and therefore
+ * load-balanced on the different CPUs via the process scheduler. To allow
+ * the kernel crypto API to inform the caller about the completion of a cipher
+ * request, the caller must provide a callback function. That function is
+ * invoked with the cipher handle when the request completes.
+ *
+ * To support the asynchronous operation, additional information than just the
+ * cipher handle must be supplied to the kernel crypto API. That additional
+ * information is given by filling in the ablkcipher_request data structure.
+ *
+ * For the asynchronous block cipher API, the state is maintained with the tfm
+ * cipher handle. A single tfm can be used across multiple calls and in
+ * parallel. For asynchronous block cipher calls, context data supplied and
+ * only used by the caller can be referenced the request data structure in
+ * addition to the IV used for the cipher request. The maintenance of such
+ * state information would be important for a crypto driver implementer to
+ * have, because when calling the callback function upon completion of the
+ * cipher operation, that callback function may need some information about
+ * which operation just finished if it invoked multiple in parallel. This
+ * state information is unused by the kernel crypto API.
+ */
+
+/**
+ * crypto_alloc_ablkcipher() - allocate asynchronous block cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * ablkcipher cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for an ablkcipher. The returned struct
+ * crypto_ablkcipher is the cipher handle that is required for any subsequent
+ * API invocation for that ablkcipher.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name,
u32 type, u32 mask);
@@ -830,11 +874,25 @@ static inline struct crypto_tfm *crypto_ablkcipher_tfm(
return &tfm->base;
}
+/**
+ * crypto_free_ablkcipher() - zeroize and free cipher handle
+ * @tfm: cipher handle to be freed
+ */
static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
{
crypto_free_tfm(crypto_ablkcipher_tfm(tfm));
}
+/**
+ * crypto_has_ablkcipher() - Search for the availability of an ablkcipher.
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * ablkcipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Return: true when the ablkcipher is known to the kernel crypto API; false
+ * otherwise
+ */
static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
u32 mask)
{
@@ -848,12 +906,31 @@ static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher;
}
+/**
+ * crypto_ablkcipher_ivsize() - obtain IV size
+ * @tfm: cipher handle
+ *
+ * The size of the IV for the ablkcipher referenced by the cipher handle is
+ * returned. This IV size may be zero if the cipher does not need an IV.
+ *
+ * Return: IV size in bytes
+ */
static inline unsigned int crypto_ablkcipher_ivsize(
struct crypto_ablkcipher *tfm)
{
return crypto_ablkcipher_crt(tfm)->ivsize;
}
+/**
+ * crypto_ablkcipher_blocksize() - obtain block size of cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the ablkcipher referenced with the cipher handle is
+ * returned. The caller may use that information to allocate appropriate
+ * memory for the data returned by the encryption or decryption operation
+ *
+ * Return: block size of cipher
+ */
static inline unsigned int crypto_ablkcipher_blocksize(
struct crypto_ablkcipher *tfm)
{
@@ -883,6 +960,22 @@ static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm,
crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm), flags);
}
+/**
+ * crypto_ablkcipher_setkey() - set key for cipher
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the ablkcipher referenced by the cipher
+ * handle.
+ *
+ * Note, the key length determines the cipher type. Many block ciphers implement
+ * different cipher modes depending on the key size, such as AES-128 vs AES-192
+ * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
+ * is performed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
const u8 *key, unsigned int keylen)
{
@@ -891,12 +984,32 @@ static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
return crt->setkey(crt->base, key, keylen);
}
+/**
+ * crypto_ablkcipher_reqtfm() - obtain cipher handle from request
+ * @req: ablkcipher_request out of which the cipher handle is to be obtained
+ *
+ * Return the crypto_ablkcipher handle when furnishing an ablkcipher_request
+ * data structure.
+ *
+ * Return: crypto_ablkcipher handle
+ */
static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
struct ablkcipher_request *req)
{
return __crypto_ablkcipher_cast(req->base.tfm);
}
+/**
+ * crypto_ablkcipher_encrypt() - encrypt plaintext
+ * @req: reference to the ablkcipher_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Encrypt plaintext data using the ablkcipher_request handle. That data
+ * structure and how it is filled with data is discussed with the
+ * ablkcipher_request_* functions.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
{
struct ablkcipher_tfm *crt =
@@ -904,6 +1017,17 @@ static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
return crt->encrypt(req);
}
+/**
+ * crypto_ablkcipher_decrypt() - decrypt ciphertext
+ * @req: reference to the ablkcipher_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Decrypt ciphertext data using the ablkcipher_request handle. That data
+ * structure and how it is filled with data is discussed with the
+ * ablkcipher_request_* functions.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
{
struct ablkcipher_tfm *crt =
@@ -911,12 +1035,37 @@ static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
return crt->decrypt(req);
}
+/**
+ * DOC: Asynchronous Cipher Request Handle
+ *
+ * The ablkcipher_request data structure contains all pointers to data
+ * required for the asynchronous cipher operation. This includes the cipher
+ * handle (which can be used by multiple ablkcipher_request instances), pointer
+ * to plaintext and ciphertext, asynchronous callback function, etc. It acts
+ * as a handle to the ablkcipher_request_* API calls in a similar way as
+ * ablkcipher handle to the crypto_ablkcipher_* API calls.
+ */
+
+/**
+ * crypto_ablkcipher_reqsize() - obtain size of the request data structure
+ * @tfm: cipher handle
+ *
+ * Return: number of bytes
+ */
static inline unsigned int crypto_ablkcipher_reqsize(
struct crypto_ablkcipher *tfm)
{
return crypto_ablkcipher_crt(tfm)->reqsize;
}
+/**
+ * ablkcipher_request_set_tfm() - update cipher handle reference in request
+ * @req: request handle to be modified
+ * @tfm: cipher handle that shall be added to the request handle
+ *
+ * Allow the caller to replace the existing ablkcipher handle in the request
+ * data structure with a different one.
+ */
static inline void ablkcipher_request_set_tfm(
struct ablkcipher_request *req, struct crypto_ablkcipher *tfm)
{
@@ -929,6 +1078,18 @@ static inline struct ablkcipher_request *ablkcipher_request_cast(
return container_of(req, struct ablkcipher_request, base);
}
+/**
+ * ablkcipher_request_alloc() - allocate request data structure
+ * @tfm: cipher handle to be registered with the request
+ * @gfp: memory allocation flag that is handed to kmalloc by the API call.
+ *
+ * Allocate the request data structure that must be used with the ablkcipher
+ * encrypt and decrypt API calls. During the allocation, the provided ablkcipher
+ * handle is registered in the request data structure.
+ *
+ * Return: allocated request handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
static inline struct ablkcipher_request *ablkcipher_request_alloc(
struct crypto_ablkcipher *tfm, gfp_t gfp)
{
@@ -943,11 +1104,40 @@ static inline struct ablkcipher_request *ablkcipher_request_alloc(
return req;
}
+/**
+ * ablkcipher_request_free() - zeroize and free request data structure
+ * @req: request data structure cipher handle to be freed
+ */
static inline void ablkcipher_request_free(struct ablkcipher_request *req)
{
kzfree(req);
}
+/**
+ * ablkcipher_request_set_callback() - set asynchronous callback function
+ * @req: request handle
+ * @flags: specify zero or an ORing of the flags
+ * CRYPTO_TFM_REQ_MAY_BACKLOG the request queue may back log and
+ * increase the wait queue beyond the initial maximum size;
+ * CRYPTO_TFM_REQ_MAY_SLEEP the request processing may sleep
+ * @compl: callback function pointer to be registered with the request handle
+ * @data: The data pointer refers to memory that is not used by the kernel
+ * crypto API, but provided to the callback function for it to use. Here,
+ * the caller can provide a reference to memory the callback function can
+ * operate on. As the callback function is invoked asynchronously to the
+ * related functionality, it may need to access data structures of the
+ * related functionality which can be referenced using this pointer. The
+ * callback function can access the memory via the "data" field in the
+ * crypto_async_request data structure provided to the callback function.
+ *
+ * This function allows setting the callback function that is triggered once the
+ * cipher operation completes.
+ *
+ * The callback function is registered with the ablkcipher_request handle and
+ * must comply with the following template:
+ *
+ * void callback_function(struct crypto_async_request *req, int error)
+ */
static inline void ablkcipher_request_set_callback(
struct ablkcipher_request *req,
u32 flags, crypto_completion_t compl, void *data)
@@ -957,6 +1147,22 @@ static inline void ablkcipher_request_set_callback(
req->base.flags = flags;
}
+/**
+ * ablkcipher_request_set_crypt() - set data buffers
+ * @req: request handle
+ * @src: source scatter / gather list
+ * @dst: destination scatter / gather list
+ * @nbytes: number of bytes to process from @src
+ * @iv: IV for the cipher operation which must comply with the IV size defined
+ * by crypto_ablkcipher_ivsize
+ *
+ * This function allows setting of the source data and destination data
+ * scatter / gather lists.
+ *
+ * For encryption, the source is treated as the plaintext and the
+ * destination is the ciphertext. For a decryption operation, the use is
+ * reversed: the source is the ciphertext and the destination is the plaintext.
+ */
static inline void ablkcipher_request_set_crypt(
struct ablkcipher_request *req,
struct scatterlist *src, struct scatterlist *dst,
--
cgit v1.2.1
From fced7b02623e3ccace714f8adceed735698a9c8b Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:29:00 +0100
Subject: crypto: doc - AEAD API documentation
The API function calls exported by the kernel crypto API for AEAD
ciphers to be used by consumers are documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/linux/crypto.h | 251 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 251 insertions(+)
(limited to 'include')
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 39c8fc6d3313..4704e71a31fe 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -1174,11 +1174,55 @@ static inline void ablkcipher_request_set_crypt(
req->info = iv;
}
+/**
+ * DOC: Authenticated Encryption With Associated Data (AEAD) Cipher API
+ *
+ * The AEAD cipher API is used with the ciphers of type CRYPTO_ALG_TYPE_AEAD
+ * (listed as type "aead" in /proc/crypto)
+ *
+ * The most prominent examples for this type of encryption is GCM and CCM.
+ * However, the kernel supports other types of AEAD ciphers which are defined
+ * with the following cipher string:
+ *
+ * authenc(keyed message digest, block cipher)
+ *
+ * For example: authenc(hmac(sha256), cbc(aes))
+ *
+ * The example code provided for the asynchronous block cipher operation
+ * applies here as well. Naturally all *ablkcipher* symbols must be exchanged
+ * the *aead* pendants discussed in the following. In addtion, for the AEAD
+ * operation, the aead_request_set_assoc function must be used to set the
+ * pointer to the associated data memory location before performing the
+ * encryption or decryption operation. In case of an encryption, the associated
+ * data memory is filled during the encryption operation. For decryption, the
+ * associated data memory must contain data that is used to verify the integrity
+ * of the decrypted data. Another deviation from the asynchronous block cipher
+ * operation is that the caller should explicitly check for -EBADMSG of the
+ * crypto_aead_decrypt. That error indicates an authentication error, i.e.
+ * a breach in the integrity of the message. In essence, that -EBADMSG error
+ * code is the key bonus an AEAD cipher has over "standard" block chaining
+ * modes.
+ */
+
static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm)
{
return (struct crypto_aead *)tfm;
}
+/**
+ * crypto_alloc_aead() - allocate AEAD cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * AEAD cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for an AEAD. The returned struct
+ * crypto_aead is the cipher handle that is required for any subsequent
+ * API invocation for that AEAD.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask);
static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm)
@@ -1186,6 +1230,10 @@ static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm)
return &tfm->base;
}
+/**
+ * crypto_free_aead() - zeroize and free aead handle
+ * @tfm: cipher handle to be freed
+ */
static inline void crypto_free_aead(struct crypto_aead *tfm)
{
crypto_free_tfm(crypto_aead_tfm(tfm));
@@ -1196,16 +1244,47 @@ static inline struct aead_tfm *crypto_aead_crt(struct crypto_aead *tfm)
return &crypto_aead_tfm(tfm)->crt_aead;
}
+/**
+ * crypto_aead_ivsize() - obtain IV size
+ * @tfm: cipher handle
+ *
+ * The size of the IV for the aead referenced by the cipher handle is
+ * returned. This IV size may be zero if the cipher does not need an IV.
+ *
+ * Return: IV size in bytes
+ */
static inline unsigned int crypto_aead_ivsize(struct crypto_aead *tfm)
{
return crypto_aead_crt(tfm)->ivsize;
}
+/**
+ * crypto_aead_authsize() - obtain maximum authentication data size
+ * @tfm: cipher handle
+ *
+ * The maximum size of the authentication data for the AEAD cipher referenced
+ * by the AEAD cipher handle is returned. The authentication data size may be
+ * zero if the cipher implements a hard-coded maximum.
+ *
+ * The authentication data may also be known as "tag value".
+ *
+ * Return: authentication data size / tag size in bytes
+ */
static inline unsigned int crypto_aead_authsize(struct crypto_aead *tfm)
{
return crypto_aead_crt(tfm)->authsize;
}
+/**
+ * crypto_aead_blocksize() - obtain block size of cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the AEAD referenced with the cipher handle is returned.
+ * The caller may use that information to allocate appropriate memory for the
+ * data returned by the encryption or decryption operation
+ *
+ * Return: block size of cipher
+ */
static inline unsigned int crypto_aead_blocksize(struct crypto_aead *tfm)
{
return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm));
@@ -1231,6 +1310,22 @@ static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags)
crypto_tfm_clear_flags(crypto_aead_tfm(tfm), flags);
}
+/**
+ * crypto_aead_setkey() - set key for cipher
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the AEAD referenced by the cipher
+ * handle.
+ *
+ * Note, the key length determines the cipher type. Many block ciphers implement
+ * different cipher modes depending on the key size, such as AES-128 vs AES-192
+ * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
+ * is performed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key,
unsigned int keylen)
{
@@ -1239,6 +1334,16 @@ static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key,
return crt->setkey(crt->base, key, keylen);
}
+/**
+ * crypto_aead_setauthsize() - set authentication data size
+ * @tfm: cipher handle
+ * @authsize: size of the authentication data / tag in bytes
+ *
+ * Set the authentication data size / tag size. AEAD requires an authentication
+ * tag (or MAC) in addition to the associated data.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize);
static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
@@ -1246,27 +1351,105 @@ static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
return __crypto_aead_cast(req->base.tfm);
}
+/**
+ * crypto_aead_encrypt() - encrypt plaintext
+ * @req: reference to the aead_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Encrypt plaintext data using the aead_request handle. That data structure
+ * and how it is filled with data is discussed with the aead_request_*
+ * functions.
+ *
+ * IMPORTANT NOTE The encryption operation creates the authentication data /
+ * tag. That data is concatenated with the created ciphertext.
+ * The ciphertext memory size is therefore the given number of
+ * block cipher blocks + the size defined by the
+ * crypto_aead_setauthsize invocation. The caller must ensure
+ * that sufficient memory is available for the ciphertext and
+ * the authentication tag.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
static inline int crypto_aead_encrypt(struct aead_request *req)
{
return crypto_aead_crt(crypto_aead_reqtfm(req))->encrypt(req);
}
+/**
+ * crypto_aead_decrypt() - decrypt ciphertext
+ * @req: reference to the ablkcipher_request handle that holds all information
+ * needed to perform the cipher operation
+ *
+ * Decrypt ciphertext data using the aead_request handle. That data structure
+ * and how it is filled with data is discussed with the aead_request_*
+ * functions.
+ *
+ * IMPORTANT NOTE The caller must concatenate the ciphertext followed by the
+ * authentication data / tag. That authentication data / tag
+ * must have the size defined by the crypto_aead_setauthsize
+ * invocation.
+ *
+ *
+ * Return: 0 if the cipher operation was successful; -EBADMSG: The AEAD
+ * cipher operation performs the authentication of the data during the
+ * decryption operation. Therefore, the function returns this error if
+ * the authentication of the ciphertext was unsuccessful (i.e. the
+ * integrity of the ciphertext or the associated data was violated);
+ * < 0 if an error occurred.
+ */
static inline int crypto_aead_decrypt(struct aead_request *req)
{
return crypto_aead_crt(crypto_aead_reqtfm(req))->decrypt(req);
}
+/**
+ * DOC: Asynchronous AEAD Request Handle
+ *
+ * The aead_request data structure contains all pointers to data required for
+ * the AEAD cipher operation. This includes the cipher handle (which can be
+ * used by multiple aead_request instances), pointer to plaintext and
+ * ciphertext, asynchronous callback function, etc. It acts as a handle to the
+ * aead_request_* API calls in a similar way as AEAD handle to the
+ * crypto_aead_* API calls.
+ */
+
+/**
+ * crypto_aead_reqsize() - obtain size of the request data structure
+ * @tfm: cipher handle
+ *
+ * Return: number of bytes
+ */
static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm)
{
return crypto_aead_crt(tfm)->reqsize;
}
+/**
+ * aead_request_set_tfm() - update cipher handle reference in request
+ * @req: request handle to be modified
+ * @tfm: cipher handle that shall be added to the request handle
+ *
+ * Allow the caller to replace the existing aead handle in the request
+ * data structure with a different one.
+ */
static inline void aead_request_set_tfm(struct aead_request *req,
struct crypto_aead *tfm)
{
req->base.tfm = crypto_aead_tfm(crypto_aead_crt(tfm)->base);
}
+/**
+ * aead_request_alloc() - allocate request data structure
+ * @tfm: cipher handle to be registered with the request
+ * @gfp: memory allocation flag that is handed to kmalloc by the API call.
+ *
+ * Allocate the request data structure that must be used with the AEAD
+ * encrypt and decrypt API calls. During the allocation, the provided aead
+ * handle is registered in the request data structure.
+ *
+ * Return: allocated request handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
gfp_t gfp)
{
@@ -1280,11 +1463,40 @@ static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
return req;
}
+/**
+ * aead_request_free() - zeroize and free request data structure
+ * @req: request data structure cipher handle to be freed
+ */
static inline void aead_request_free(struct aead_request *req)
{
kzfree(req);
}
+/**
+ * aead_request_set_callback() - set asynchronous callback function
+ * @req: request handle
+ * @flags: specify zero or an ORing of the flags
+ * CRYPTO_TFM_REQ_MAY_BACKLOG the request queue may back log and
+ * increase the wait queue beyond the initial maximum size;
+ * CRYPTO_TFM_REQ_MAY_SLEEP the request processing may sleep
+ * @compl: callback function pointer to be registered with the request handle
+ * @data: The data pointer refers to memory that is not used by the kernel
+ * crypto API, but provided to the callback function for it to use. Here,
+ * the caller can provide a reference to memory the callback function can
+ * operate on. As the callback function is invoked asynchronously to the
+ * related functionality, it may need to access data structures of the
+ * related functionality which can be referenced using this pointer. The
+ * callback function can access the memory via the "data" field in the
+ * crypto_async_request data structure provided to the callback function.
+ *
+ * Setting the callback function that is triggered once the cipher operation
+ * completes
+ *
+ * The callback function is registered with the aead_request handle and
+ * must comply with the following template:
+ *
+ * void callback_function(struct crypto_async_request *req, int error)
+ */
static inline void aead_request_set_callback(struct aead_request *req,
u32 flags,
crypto_completion_t compl,
@@ -1295,6 +1507,36 @@ static inline void aead_request_set_callback(struct aead_request *req,
req->base.flags = flags;
}
+/**
+ * aead_request_set_crypt - set data buffers
+ * @req: request handle
+ * @src: source scatter / gather list
+ * @dst: destination scatter / gather list
+ * @cryptlen: number of bytes to process from @src
+ * @iv: IV for the cipher operation which must comply with the IV size defined
+ * by crypto_aead_ivsize()
+ *
+ * Setting the source data and destination data scatter / gather lists.
+ *
+ * For encryption, the source is treated as the plaintext and the
+ * destination is the ciphertext. For a decryption operation, the use is
+ * reversed: the source is the ciphertext and the destination is the plaintext.
+ *
+ * IMPORTANT NOTE AEAD requires an authentication tag (MAC). For decryption,
+ * the caller must concatenate the ciphertext followed by the
+ * authentication tag and provide the entire data stream to the
+ * decryption operation (i.e. the data length used for the
+ * initialization of the scatterlist and the data length for the
+ * decryption operation is identical). For encryption, however,
+ * the authentication tag is created while encrypting the data.
+ * The destination buffer must hold sufficient space for the
+ * ciphertext and the authentication tag while the encryption
+ * invocation must only point to the plaintext data size. The
+ * following code snippet illustrates the memory usage
+ * buffer = kmalloc(ptbuflen + (enc ? authsize : 0));
+ * sg_init_one(&sg, buffer, ptbuflen + (enc ? authsize : 0));
+ * aead_request_set_crypt(req, &sg, &sg, ptbuflen, iv);
+ */
static inline void aead_request_set_crypt(struct aead_request *req,
struct scatterlist *src,
struct scatterlist *dst,
@@ -1306,6 +1548,15 @@ static inline void aead_request_set_crypt(struct aead_request *req,
req->iv = iv;
}
+/**
+ * aead_request_set_assoc() - set the associated data scatter / gather list
+ * @req: request handle
+ * @assoc: associated data scatter / gather list
+ * @assoclen: number of bytes to process from @assoc
+ *
+ * For encryption, the memory is filled with the associated data. For
+ * decryption, the memory must point to the associated data.
+ */
static inline void aead_request_set_assoc(struct aead_request *req,
struct scatterlist *assoc,
unsigned int assoclen)
--
cgit v1.2.1
From 58284f0d6c4a974d2d89446f3b3cbc51420432ea Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:29:36 +0100
Subject: crypto: doc - BLKCIPHER API documentation
The API function calls exported by the kernel crypto API for
synchronous block ciphers to be used by consumers are documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/linux/crypto.h | 188 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 188 insertions(+)
(limited to 'include')
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 4704e71a31fe..c9ebe456dc9e 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -1565,6 +1565,36 @@ static inline void aead_request_set_assoc(struct aead_request *req,
req->assoclen = assoclen;
}
+/**
+ * DOC: Synchronous Block Cipher API
+ *
+ * The synchronous block cipher API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_BLKCIPHER (listed as type "blkcipher" in /proc/crypto)
+ *
+ * Synchronous calls, have a context in the tfm. But since a single tfm can be
+ * used in multiple calls and in parallel, this info should not be changeable
+ * (unless a lock is used). This applies, for example, to the symmetric key.
+ * However, the IV is changeable, so there is an iv field in blkcipher_tfm
+ * structure for synchronous blkcipher api. So, its the only state info that can
+ * be kept for synchronous calls without using a big lock across a tfm.
+ *
+ * The block cipher API allows the use of a complete cipher, i.e. a cipher
+ * consisting of a template (a block chaining mode) and a single block cipher
+ * primitive (e.g. AES).
+ *
+ * The plaintext data buffer and the ciphertext data buffer are pointed to
+ * by using scatter/gather lists. The cipher operation is performed
+ * on all segments of the provided scatter/gather lists.
+ *
+ * The kernel crypto API supports a cipher operation "in-place" which means that
+ * the caller may provide the same scatter/gather list for the plaintext and
+ * cipher text. After the completion of the cipher operation, the plaintext
+ * data is replaced with the ciphertext data in case of an encryption and vice
+ * versa for a decryption. The caller must ensure that the scatter/gather lists
+ * for the output data point to sufficiently large buffers, i.e. multiples of
+ * the block size of the cipher.
+ */
+
static inline struct crypto_blkcipher *__crypto_blkcipher_cast(
struct crypto_tfm *tfm)
{
@@ -1578,6 +1608,20 @@ static inline struct crypto_blkcipher *crypto_blkcipher_cast(
return __crypto_blkcipher_cast(tfm);
}
+/**
+ * crypto_alloc_blkcipher() - allocate synchronous block cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * blkcipher cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for a block cipher. The returned struct
+ * crypto_blkcipher is the cipher handle that is required for any subsequent
+ * API invocation for that block cipher.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
const char *alg_name, u32 type, u32 mask)
{
@@ -1594,11 +1638,25 @@ static inline struct crypto_tfm *crypto_blkcipher_tfm(
return &tfm->base;
}
+/**
+ * crypto_free_blkcipher() - zeroize and free the block cipher handle
+ * @tfm: cipher handle to be freed
+ */
static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm)
{
crypto_free_tfm(crypto_blkcipher_tfm(tfm));
}
+/**
+ * crypto_has_blkcipher() - Search for the availability of a block cipher
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * block cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Return: true when the block cipher is known to the kernel crypto API; false
+ * otherwise
+ */
static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
{
type &= ~CRYPTO_ALG_TYPE_MASK;
@@ -1608,6 +1666,12 @@ static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
return crypto_has_alg(alg_name, type, mask);
}
+/**
+ * crypto_blkcipher_name() - return the name / cra_name from the cipher handle
+ * @tfm: cipher handle
+ *
+ * Return: The character string holding the name of the cipher
+ */
static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm)
{
return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm));
@@ -1625,11 +1689,30 @@ static inline struct blkcipher_alg *crypto_blkcipher_alg(
return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher;
}
+/**
+ * crypto_blkcipher_ivsize() - obtain IV size
+ * @tfm: cipher handle
+ *
+ * The size of the IV for the block cipher referenced by the cipher handle is
+ * returned. This IV size may be zero if the cipher does not need an IV.
+ *
+ * Return: IV size in bytes
+ */
static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm)
{
return crypto_blkcipher_alg(tfm)->ivsize;
}
+/**
+ * crypto_blkcipher_blocksize() - obtain block size of cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the block cipher referenced with the cipher handle is
+ * returned. The caller may use that information to allocate appropriate
+ * memory for the data returned by the encryption or decryption operation.
+ *
+ * Return: block size of cipher
+ */
static inline unsigned int crypto_blkcipher_blocksize(
struct crypto_blkcipher *tfm)
{
@@ -1659,6 +1742,22 @@ static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm,
crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags);
}
+/**
+ * crypto_blkcipher_setkey() - set key for cipher
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the block cipher referenced by the cipher
+ * handle.
+ *
+ * Note, the key length determines the cipher type. Many block ciphers implement
+ * different cipher modes depending on the key size, such as AES-128 vs AES-192
+ * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
+ * is performed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm,
const u8 *key, unsigned int keylen)
{
@@ -1666,6 +1765,24 @@ static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm,
key, keylen);
}
+/**
+ * crypto_blkcipher_encrypt() - encrypt plaintext
+ * @desc: reference to the block cipher handle with meta data
+ * @dst: scatter/gather list that is filled by the cipher operation with the
+ * ciphertext
+ * @src: scatter/gather list that holds the plaintext
+ * @nbytes: number of bytes of the plaintext to encrypt.
+ *
+ * Encrypt plaintext data using the IV set by the caller with a preceding
+ * call of crypto_blkcipher_set_iv.
+ *
+ * The blkcipher_desc data structure must be filled by the caller and can
+ * reside on the stack. The caller must fill desc as follows: desc.tfm is filled
+ * with the block cipher handle; desc.flags is filled with either
+ * CRYPTO_TFM_REQ_MAY_SLEEP or 0.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src,
@@ -1675,6 +1792,25 @@ static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc,
return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
}
+/**
+ * crypto_blkcipher_encrypt_iv() - encrypt plaintext with dedicated IV
+ * @desc: reference to the block cipher handle with meta data
+ * @dst: scatter/gather list that is filled by the cipher operation with the
+ * ciphertext
+ * @src: scatter/gather list that holds the plaintext
+ * @nbytes: number of bytes of the plaintext to encrypt.
+ *
+ * Encrypt plaintext data with the use of an IV that is solely used for this
+ * cipher operation. Any previously set IV is not used.
+ *
+ * The blkcipher_desc data structure must be filled by the caller and can
+ * reside on the stack. The caller must fill desc as follows: desc.tfm is filled
+ * with the block cipher handle; desc.info is filled with the IV to be used for
+ * the current operation; desc.flags is filled with either
+ * CRYPTO_TFM_REQ_MAY_SLEEP or 0.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src,
@@ -1683,6 +1819,23 @@ static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc,
return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
}
+/**
+ * crypto_blkcipher_decrypt() - decrypt ciphertext
+ * @desc: reference to the block cipher handle with meta data
+ * @dst: scatter/gather list that is filled by the cipher operation with the
+ * plaintext
+ * @src: scatter/gather list that holds the ciphertext
+ * @nbytes: number of bytes of the ciphertext to decrypt.
+ *
+ * Decrypt ciphertext data using the IV set by the caller with a preceding
+ * call of crypto_blkcipher_set_iv.
+ *
+ * The blkcipher_desc data structure must be filled by the caller as documented
+ * for the crypto_blkcipher_encrypt call above.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ *
+ */
static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src,
@@ -1692,6 +1845,22 @@ static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc,
return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
}
+/**
+ * crypto_blkcipher_decrypt_iv() - decrypt ciphertext with dedicated IV
+ * @desc: reference to the block cipher handle with meta data
+ * @dst: scatter/gather list that is filled by the cipher operation with the
+ * plaintext
+ * @src: scatter/gather list that holds the ciphertext
+ * @nbytes: number of bytes of the ciphertext to decrypt.
+ *
+ * Decrypt ciphertext data with the use of an IV that is solely used for this
+ * cipher operation. Any previously set IV is not used.
+ *
+ * The blkcipher_desc data structure must be filled by the caller as documented
+ * for the crypto_blkcipher_encrypt_iv call above.
+ *
+ * Return: 0 if the cipher operation was successful; < 0 if an error occurred
+ */
static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src,
@@ -1700,12 +1869,31 @@ static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc,
return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
}
+/**
+ * crypto_blkcipher_set_iv() - set IV for cipher
+ * @tfm: cipher handle
+ * @src: buffer holding the IV
+ * @len: length of the IV in bytes
+ *
+ * The caller provided IV is set for the block cipher referenced by the cipher
+ * handle.
+ */
static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher *tfm,
const u8 *src, unsigned int len)
{
memcpy(crypto_blkcipher_crt(tfm)->iv, src, len);
}
+/**
+ * crypto_blkcipher_get_iv() - obtain IV from cipher
+ * @tfm: cipher handle
+ * @dst: buffer filled with the IV
+ * @len: length of the buffer dst
+ *
+ * The caller can obtain the IV set for the block cipher referenced by the
+ * cipher handle and store it into the user-provided buffer. If the buffer
+ * has an insufficient space, the IV is truncated to fit the buffer.
+ */
static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm,
u8 *dst, unsigned int len)
{
--
cgit v1.2.1
From 16e61030aecb250766cf175141fc91d441361c43 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:30:06 +0100
Subject: crypto: doc - CIPHER API documentation
The API function calls exported by the kernel crypto API for
signle block ciphers to be used by consumers are documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/linux/crypto.h | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 89 insertions(+)
(limited to 'include')
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index c9ebe456dc9e..0f95a07aa4df 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -1900,6 +1900,23 @@ static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm,
memcpy(dst, crypto_blkcipher_crt(tfm)->iv, len);
}
+/**
+ * DOC: Single Block Cipher API
+ *
+ * The single block cipher API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_CIPHER (listed as type "cipher" in /proc/crypto).
+ *
+ * Using the single block cipher API calls, operations with the basic cipher
+ * primitive can be implemented. These cipher primitives exclude any block
+ * chaining operations including IV handling.
+ *
+ * The purpose of this single block cipher API is to support the implementation
+ * of templates or other concepts that only need to perform the cipher operation
+ * on one block at a time. Templates invoke the underlying cipher primitive
+ * block-wise and process either the input or the output data of these cipher
+ * operations.
+ */
+
static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm)
{
return (struct crypto_cipher *)tfm;
@@ -1911,6 +1928,20 @@ static inline struct crypto_cipher *crypto_cipher_cast(struct crypto_tfm *tfm)
return __crypto_cipher_cast(tfm);
}
+/**
+ * crypto_alloc_cipher() - allocate single block cipher handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * single block cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for a single block cipher. The returned struct
+ * crypto_cipher is the cipher handle that is required for any subsequent API
+ * invocation for that single block cipher.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name,
u32 type, u32 mask)
{
@@ -1926,11 +1957,25 @@ static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm)
return &tfm->base;
}
+/**
+ * crypto_free_cipher() - zeroize and free the single block cipher handle
+ * @tfm: cipher handle to be freed
+ */
static inline void crypto_free_cipher(struct crypto_cipher *tfm)
{
crypto_free_tfm(crypto_cipher_tfm(tfm));
}
+/**
+ * crypto_has_cipher() - Search for the availability of a single block cipher
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * single block cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Return: true when the single block cipher is known to the kernel crypto API;
+ * false otherwise
+ */
static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask)
{
type &= ~CRYPTO_ALG_TYPE_MASK;
@@ -1945,6 +1990,16 @@ static inline struct cipher_tfm *crypto_cipher_crt(struct crypto_cipher *tfm)
return &crypto_cipher_tfm(tfm)->crt_cipher;
}
+/**
+ * crypto_cipher_blocksize() - obtain block size for cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the single block cipher referenced with the cipher handle
+ * tfm is returned. The caller may use that information to allocate appropriate
+ * memory for the data returned by the encryption or decryption operation
+ *
+ * Return: block size of cipher
+ */
static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm)
{
return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm));
@@ -1972,6 +2027,22 @@ static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm,
crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags);
}
+/**
+ * crypto_cipher_setkey() - set key for cipher
+ * @tfm: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the single block cipher referenced by the
+ * cipher handle.
+ *
+ * Note, the key length determines the cipher type. Many block ciphers implement
+ * different cipher modes depending on the key size, such as AES-128 vs AES-192
+ * vs. AES-256. When providing a 16 byte key for an AES cipher handle, AES-128
+ * is performed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
static inline int crypto_cipher_setkey(struct crypto_cipher *tfm,
const u8 *key, unsigned int keylen)
{
@@ -1979,6 +2050,15 @@ static inline int crypto_cipher_setkey(struct crypto_cipher *tfm,
key, keylen);
}
+/**
+ * crypto_cipher_encrypt_one() - encrypt one block of plaintext
+ * @tfm: cipher handle
+ * @dst: points to the buffer that will be filled with the ciphertext
+ * @src: buffer holding the plaintext to be encrypted
+ *
+ * Invoke the encryption operation of one block. The caller must ensure that
+ * the plaintext and ciphertext buffers are at least one block in size.
+ */
static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
u8 *dst, const u8 *src)
{
@@ -1986,6 +2066,15 @@ static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
dst, src);
}
+/**
+ * crypto_cipher_decrypt_one() - decrypt one block of ciphertext
+ * @tfm: cipher handle
+ * @dst: points to the buffer that will be filled with the plaintext
+ * @src: buffer holding the ciphertext to be decrypted
+ *
+ * Invoke the decryption operation of one block. The caller must ensure that
+ * the plaintext and ciphertext buffers are at least one block in size.
+ */
static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
u8 *dst, const u8 *src)
{
--
cgit v1.2.1
From 47ca5be9eb066befe284f4e03fc11f21b8321ddc Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 12 Nov 2014 05:30:42 +0100
Subject: crypto: doc - HASH API documentation
The API function calls exported by the kernel crypto API for
message digests to be used by consumers are documented.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/linux/crypto.h | 119 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 119 insertions(+)
(limited to 'include')
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 0f95a07aa4df..208a63290b23 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -2082,6 +2082,13 @@ static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
dst, src);
}
+/**
+ * DOC: Synchronous Message Digest API
+ *
+ * The synchronous message digest API is used with the ciphers of type
+ * CRYPTO_ALG_TYPE_HASH (listed as type "hash" in /proc/crypto)
+ */
+
static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm)
{
return (struct crypto_hash *)tfm;
@@ -2094,6 +2101,20 @@ static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm)
return __crypto_hash_cast(tfm);
}
+/**
+ * crypto_alloc_hash() - allocate synchronous message digest handle
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * message digest cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Allocate a cipher handle for a message digest. The returned struct
+ * crypto_hash is the cipher handle that is required for any subsequent
+ * API invocation for that message digest.
+ *
+ * Return: allocated cipher handle in case of success; IS_ERR() is true in case
+ * of an error, PTR_ERR() returns the error code.
+ */
static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name,
u32 type, u32 mask)
{
@@ -2110,11 +2131,25 @@ static inline struct crypto_tfm *crypto_hash_tfm(struct crypto_hash *tfm)
return &tfm->base;
}
+/**
+ * crypto_free_hash() - zeroize and free message digest handle
+ * @tfm: cipher handle to be freed
+ */
static inline void crypto_free_hash(struct crypto_hash *tfm)
{
crypto_free_tfm(crypto_hash_tfm(tfm));
}
+/**
+ * crypto_has_hash() - Search for the availability of a message digest
+ * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
+ * message digest cipher
+ * @type: specifies the type of the cipher
+ * @mask: specifies the mask for the cipher
+ *
+ * Return: true when the message digest cipher is known to the kernel crypto
+ * API; false otherwise
+ */
static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask)
{
type &= ~CRYPTO_ALG_TYPE_MASK;
@@ -2130,6 +2165,15 @@ static inline struct hash_tfm *crypto_hash_crt(struct crypto_hash *tfm)
return &crypto_hash_tfm(tfm)->crt_hash;
}
+/**
+ * crypto_hash_blocksize() - obtain block size for message digest
+ * @tfm: cipher handle
+ *
+ * The block size for the message digest cipher referenced with the cipher
+ * handle is returned.
+ *
+ * Return: block size of cipher
+ */
static inline unsigned int crypto_hash_blocksize(struct crypto_hash *tfm)
{
return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm));
@@ -2140,6 +2184,15 @@ static inline unsigned int crypto_hash_alignmask(struct crypto_hash *tfm)
return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm));
}
+/**
+ * crypto_hash_digestsize() - obtain message digest size
+ * @tfm: cipher handle
+ *
+ * The size for the message digest created by the message digest cipher
+ * referenced with the cipher handle is returned.
+ *
+ * Return: message digest size
+ */
static inline unsigned int crypto_hash_digestsize(struct crypto_hash *tfm)
{
return crypto_hash_crt(tfm)->digestsize;
@@ -2160,11 +2213,38 @@ static inline void crypto_hash_clear_flags(struct crypto_hash *tfm, u32 flags)
crypto_tfm_clear_flags(crypto_hash_tfm(tfm), flags);
}
+/**
+ * crypto_hash_init() - (re)initialize message digest handle
+ * @desc: cipher request handle that to be filled by caller --
+ * desc.tfm is filled with the hash cipher handle;
+ * desc.flags is filled with either CRYPTO_TFM_REQ_MAY_SLEEP or 0.
+ *
+ * The call (re-)initializes the message digest referenced by the hash cipher
+ * request handle. Any potentially existing state created by previous
+ * operations is discarded.
+ *
+ * Return: 0 if the message digest initialization was successful; < 0 if an
+ * error occurred
+ */
static inline int crypto_hash_init(struct hash_desc *desc)
{
return crypto_hash_crt(desc->tfm)->init(desc);
}
+/**
+ * crypto_hash_update() - add data to message digest for processing
+ * @desc: cipher request handle
+ * @sg: scatter / gather list pointing to the data to be added to the message
+ * digest
+ * @nbytes: number of bytes to be processed from @sg
+ *
+ * Updates the message digest state of the cipher handle pointed to by the
+ * hash cipher request handle with the input data pointed to by the
+ * scatter/gather list.
+ *
+ * Return: 0 if the message digest update was successful; < 0 if an error
+ * occurred
+ */
static inline int crypto_hash_update(struct hash_desc *desc,
struct scatterlist *sg,
unsigned int nbytes)
@@ -2172,11 +2252,39 @@ static inline int crypto_hash_update(struct hash_desc *desc,
return crypto_hash_crt(desc->tfm)->update(desc, sg, nbytes);
}
+/**
+ * crypto_hash_final() - calculate message digest
+ * @desc: cipher request handle
+ * @out: message digest output buffer -- The caller must ensure that the out
+ * buffer has a sufficient size (e.g. by using the crypto_hash_digestsize
+ * function).
+ *
+ * Finalize the message digest operation and create the message digest
+ * based on all data added to the cipher handle. The message digest is placed
+ * into the output buffer.
+ *
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
static inline int crypto_hash_final(struct hash_desc *desc, u8 *out)
{
return crypto_hash_crt(desc->tfm)->final(desc, out);
}
+/**
+ * crypto_hash_digest() - calculate message digest for a buffer
+ * @desc: see crypto_hash_final()
+ * @sg: see crypto_hash_update()
+ * @nbytes: see crypto_hash_update()
+ * @out: see crypto_hash_final()
+ *
+ * This function is a "short-hand" for the function calls of crypto_hash_init,
+ * crypto_hash_update and crypto_hash_final. The parameters have the same
+ * meaning as discussed for those separate three functions.
+ *
+ * Return: 0 if the message digest creation was successful; < 0 if an error
+ * occurred
+ */
static inline int crypto_hash_digest(struct hash_desc *desc,
struct scatterlist *sg,
unsigned int nbytes, u8 *out)
@@ -2184,6 +2292,17 @@ static inline int crypto_hash_digest(struct hash_desc *desc,
return crypto_hash_crt(desc->tfm)->digest(desc, sg, nbytes, out);
}
+/**
+ * crypto_hash_setkey() - set key for message digest
+ * @hash: cipher handle
+ * @key: buffer holding the key
+ * @keylen: length of the key in bytes
+ *
+ * The caller provided key is set for the message digest cipher. The cipher
+ * handle must point to a keyed hash in order for this function to succeed.
+ *
+ * Return: 0 if the setting of the key was successful; < 0 if an error occurred
+ */
static inline int crypto_hash_setkey(struct crypto_hash *hash,
const u8 *key, unsigned int keylen)
{
--
cgit v1.2.1
From b40d02bf96e05851d1d16b4a75f66a9e16cfb2fb Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Thu, 12 Jun 2014 13:14:50 +0200
Subject: gpu: host1x: Use struct host1x_bo pointers in traces
Rather than cast to a u32 use the struct host1x_bo pointers directly.
This avoid annoying warnings for 64-bit builds.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/trace/events/host1x.h | 27 +++++++++++++++------------
1 file changed, 15 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/host1x.h b/include/trace/events/host1x.h
index 94db6a2c3540..63116362543c 100644
--- a/include/trace/events/host1x.h
+++ b/include/trace/events/host1x.h
@@ -29,6 +29,8 @@
#include <linux/ktime.h>
#include <linux/tracepoint.h>
+struct host1x_bo;
+
DECLARE_EVENT_CLASS(host1x,
TP_PROTO(const char *name),
TP_ARGS(name),
@@ -79,14 +81,14 @@ TRACE_EVENT(host1x_cdma_push,
);
TRACE_EVENT(host1x_cdma_push_gather,
- TP_PROTO(const char *name, u32 mem_id,
+ TP_PROTO(const char *name, struct host1x_bo *bo,
u32 words, u32 offset, void *cmdbuf),
- TP_ARGS(name, mem_id, words, offset, cmdbuf),
+ TP_ARGS(name, bo, words, offset, cmdbuf),
TP_STRUCT__entry(
__field(const char *, name)
- __field(u32, mem_id)
+ __field(struct host1x_bo *, bo)
__field(u32, words)
__field(u32, offset)
__field(bool, cmdbuf)
@@ -100,13 +102,13 @@ TRACE_EVENT(host1x_cdma_push_gather,
}
__entry->cmdbuf = cmdbuf;
__entry->name = name;
- __entry->mem_id = mem_id;
+ __entry->bo = bo;
__entry->words = words;
__entry->offset = offset;
),
- TP_printk("name=%s, mem_id=%08x, words=%u, offset=%d, contents=[%s]",
- __entry->name, __entry->mem_id,
+ TP_printk("name=%s, bo=%p, words=%u, offset=%d, contents=[%s]",
+ __entry->name, __entry->bo,
__entry->words, __entry->offset,
__print_hex(__get_dynamic_array(cmdbuf),
__entry->cmdbuf ? __entry->words * 4 : 0))
@@ -221,12 +223,13 @@ TRACE_EVENT(host1x_syncpt_load_min,
);
TRACE_EVENT(host1x_syncpt_wait_check,
- TP_PROTO(void *mem_id, u32 offset, u32 syncpt_id, u32 thresh, u32 min),
+ TP_PROTO(struct host1x_bo *bo, u32 offset, u32 syncpt_id, u32 thresh,
+ u32 min),
- TP_ARGS(mem_id, offset, syncpt_id, thresh, min),
+ TP_ARGS(bo, offset, syncpt_id, thresh, min),
TP_STRUCT__entry(
- __field(void *, mem_id)
+ __field(struct host1x_bo *, bo)
__field(u32, offset)
__field(u32, syncpt_id)
__field(u32, thresh)
@@ -234,15 +237,15 @@ TRACE_EVENT(host1x_syncpt_wait_check,
),
TP_fast_assign(
- __entry->mem_id = mem_id;
+ __entry->bo = bo;
__entry->offset = offset;
__entry->syncpt_id = syncpt_id;
__entry->thresh = thresh;
__entry->min = min;
),
- TP_printk("mem_id=%p, offset=%05x, id=%d, thresh=%d, current=%d",
- __entry->mem_id, __entry->offset,
+ TP_printk("bo=%p, offset=%05x, id=%d, thresh=%d, current=%d",
+ __entry->bo, __entry->offset,
__entry->syncpt_id, __entry->thresh,
__entry->min)
);
--
cgit v1.2.1
From d539efa37f1f789339699c941e72e320d12d5f28 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 3 Oct 2014 16:57:11 +0300
Subject: ARM: OMAP3: clock: add new rate changing logic support for noncore
DPLLs
Currently, DPLL code hides the re-parenting within its internals, which
is wrong. This needs to be exposed to the common clock code via
determine_rate and set_rate_and_parent APIs. This patch adds support
for these, which will be taken into use in the following patches.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
include/linux/clk/ti.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index f75acbf70e96..6f9fb77ffdd5 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -254,8 +254,17 @@ extern const struct clk_ops ti_clk_mux_ops;
void omap2_init_clk_hw_omap_clocks(struct clk *clk);
int omap3_noncore_dpll_enable(struct clk_hw *hw);
void omap3_noncore_dpll_disable(struct clk_hw *hw);
+int omap3_noncore_dpll_set_parent(struct clk_hw *hw, u8 index);
int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate);
+int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long parent_rate,
+ u8 index);
+long omap3_noncore_dpll_determine_rate(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long *best_parent_rate,
+ struct clk **best_parent_clk);
unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
unsigned long parent_rate);
long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
--
cgit v1.2.1
From 83501ff0a5032dfbd63ab1ca9d9d25b97ec49fb9 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 3 Oct 2014 16:57:12 +0300
Subject: ARM: OMAP4: clock: add support for determine_rate for omap4 regm4xen
DPLL
Similarly to OMAP3 noncore DPLL, the implementation of this DPLL clock
type is wrong. This patch adds basic functionality for determine_rate
for this clock type which will be taken into use in the patches following
later.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
include/linux/clk/ti.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 6f9fb77ffdd5..abc702a73aca 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -270,6 +270,10 @@ unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
unsigned long target_rate,
unsigned long *parent_rate);
+long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long *best_parent_rate,
+ struct clk **best_parent_clk);
u8 omap2_init_dpll_parent(struct clk_hw *hw);
unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
--
cgit v1.2.1
From e3ab6013ab06d3a861ed00c1f8d32aa4e6b66ddd Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 3 Oct 2014 16:57:13 +0300
Subject: ARM: OMAP3: clock: add support for dpll4_set_rate_and_parent
Expand the support of omap4 per-dpll to provide set_rate_and_parent.
This is required for proper behavior of clk_change_rate with
determine_rate support.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
include/linux/clk/ti.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index abc702a73aca..74e5341463c9 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -291,6 +291,8 @@ int omap2_clk_disable_autoidle_all(void);
void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
unsigned long parent_rate);
+int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate, u8 index);
int omap2_dflt_clk_enable(struct clk_hw *hw);
void omap2_dflt_clk_disable(struct clk_hw *hw);
int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
--
cgit v1.2.1
From a4acded086c4320bc58bd59ea746fd19de6dabb0 Mon Sep 17 00:00:00 2001
From: Gavin Shan <gwshan@linux.vnet.ibm.com>
Date: Wed, 12 Nov 2014 13:43:52 +1100
Subject: PCI: Remove unused and broken to_hotplug_slot()
to_hotplug_slot() is unused and wouldn't work anyway, because struct
hotplug_slot no longer contains a struct kobject (it was removed by
f46753c5e354 ("PCI: introduce pci_slot")).
Remove to_hotplug_slot().
[bhelgaas: changelog]
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/pci_hotplug.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 2706ee9a4327..8c7895061121 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -109,7 +109,6 @@ struct hotplug_slot {
struct list_head slot_list;
struct pci_slot *pci_slot;
};
-#define to_hotplug_slot(n) container_of(n, struct hotplug_slot, kobj)
static inline const char *hotplug_slot_name(const struct hotplug_slot *slot)
{
--
cgit v1.2.1
From 1a6c9b2675460718f819def9a272cca35575eeb7 Mon Sep 17 00:00:00 2001
From: Pranith Kumar <bobby.prani@gmail.com>
Date: Thu, 25 Sep 2014 14:03:34 -0400
Subject: rcu: Add sparse check for RCU_INIT_POINTER()
Add a sparse check when RCU_INIT_POINTER() is used to assign a non __rcu
annotated pointer.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a4a819ffb2d1..a033d8b55773 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -1047,6 +1047,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
*/
#define RCU_INIT_POINTER(p, v) \
do { \
+ rcu_dereference_sparse(p, __rcu); \
p = RCU_INITIALIZER(v); \
} while (0)
--
cgit v1.2.1
From b6331ae8afe4118884c4b6e14a213758d88422b2 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sat, 4 Oct 2014 03:43:41 -0700
Subject: rcu: Optimize cond_resched_rcu_qs()
The current implementation of cond_resched_rcu_qs() can invoke
rcu_note_voluntary_context_switch() twice in the should_resched()
case, once via the call to __schedule() and once directly. However, as
noted by Joe Lawrence in a patch to the team subsystem, cond_resched()
returns an indication as to whether or not the call to __schedule()
actually happened. This commit therefore changes cond_resched_rcu_qs()
so as to invoke rcu_note_voluntary_context_switch() only when __schedule()
was not called.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a033d8b55773..36ea3ba5c516 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -348,8 +348,8 @@ extern struct srcu_struct tasks_rcu_exit_srcu;
*/
#define cond_resched_rcu_qs() \
do { \
- rcu_note_voluntary_context_switch(current); \
- cond_resched(); \
+ if (!cond_resched()) \
+ rcu_note_voluntary_context_switch(current); \
} while (0)
#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP)
--
cgit v1.2.1
From ce36f2f3eb6613a73bc6f3a5256bde7dd3f95710 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 28 Sep 2014 23:44:21 +0200
Subject: rcu: More info about potential deadlocks with rcu_read_unlock()
The comment above rcu_read_unlock() explains the potential deadlock
if the caller holds one of the locks taken by rt_mutex_unlock() paths,
but it is not clear from this documentation that any lock which can
be taken from interrupt can lead to deadlock as well and we need to
take rt_mutex_lock() into account too.
The problem is that rt_mutex_lock() takes wait_lock without disabling
irqs, and thus an interrupt taking some LOCK can obviously race with
rcu_read_unlock_special() called with the same LOCK held.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
include/linux/rcupdate.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 36ea3ba5c516..ae6942a84a0d 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -887,7 +887,9 @@ static inline void rcu_read_lock(void)
* Unfortunately, this function acquires the scheduler's runqueue and
* priority-inheritance spinlocks. This means that deadlock could result
* if the caller of rcu_read_unlock() already holds one of these locks or
- * any lock that is ever acquired while holding them.
+ * any lock that is ever acquired while holding them; or any lock which
+ * can be taken from interrupt context because rcu_boost()->rt_mutex_lock()
+ * does not disable irqs while taking ->wait_lock.
*
* That said, RCU readers are never priority boosted unless they were
* preempted. Therefore, one way to avoid deadlock is to make sure
--
cgit v1.2.1
From 1b2f309d70daf04b6a97b3753e375654532f6207 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 13 Nov 2014 18:11:20 +0800
Subject: rhashtable: Move mutex_is_held under PROVE_LOCKING
The rhashtable function mutex_is_held is only used when PROVE_LOCKING
is enabled. This patch makes the mutex_is_held field in rhashtable
optional depending on PROVE_LOCKING.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/rhashtable.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index fb298e9d6d3a..96ce8ceff554 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -65,7 +65,9 @@ struct rhashtable_params {
size_t new_size);
bool (*shrink_decision)(const struct rhashtable *ht,
size_t new_size);
+#ifdef CONFIG_PROVE_LOCKING
int (*mutex_is_held)(void);
+#endif
};
/**
--
cgit v1.2.1
From 7b4ce2353467fdab6e003be7a3129fb09b09deac Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 13 Nov 2014 18:11:22 +0800
Subject: rhashtable: Add parent argument to mutex_is_held
Currently mutex_is_held can only test locks in the that are global
since it takes no arguments. This prevents rhashtable from being
used in places where locks are lock, e.g., per-namespace locks.
This patch adds a parent field to mutex_is_held and rhashtable_params
so that local locks can be used (and tested).
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/rhashtable.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index 96ce8ceff554..473e26bdb91d 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -66,7 +66,8 @@ struct rhashtable_params {
bool (*shrink_decision)(const struct rhashtable *ht,
size_t new_size);
#ifdef CONFIG_PROVE_LOCKING
- int (*mutex_is_held)(void);
+ int (*mutex_is_held)(void *parent);
+ void *parent;
#endif
};
--
cgit v1.2.1
From 7ae0e400cd9396c41fe596d35dcc34feaa89a04f Mon Sep 17 00:00:00 2001
From: Matan Barak <matanb@mellanox.com>
Date: Thu, 13 Nov 2014 14:45:32 +0200
Subject: net/mlx4_core: Flexible (asymmetric) allocation of EQs and MSI-X
vectors for PF/VFs
Previously, the driver queried the firmware in order to get the number
of supported EQs. Under SRIOV, since this was done before the driver
notified the firmware how many VFs it actually needs, the firmware had
to take into account a worst case scenario and always allocated four EQs
per VF, where one was used for events while the others were used for completions.
Now, when the firmware supports the asymmetric allocation scheme, denoted
by exposing num_sys_eqs > 0 (--> MLX4_DEV_CAP_FLAG2_SYS_EQS), we use the
QUERY_FUNC command to query the firmware before enabling SRIOV. Thus we
can get more EQs and MSI-X vectors per function.
Moreover, when running in the new firmware/driver mode, the limitation
that the number of EQs should be a power of two is lifted.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 3d9bff00f24a..1c560eb870ad 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -189,7 +189,8 @@ enum {
MLX4_DEV_CAP_FLAG2_EQE_STRIDE = 1LL << 13,
MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL = 1LL << 14,
MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP = 1LL << 15,
- MLX4_DEV_CAP_FLAG2_CONFIG_DEV = 1LL << 16
+ MLX4_DEV_CAP_FLAG2_CONFIG_DEV = 1LL << 16,
+ MLX4_DEV_CAP_FLAG2_SYS_EQS = 1LL << 17
};
enum {
@@ -443,6 +444,7 @@ struct mlx4_caps {
int num_cqs;
int max_cqes;
int reserved_cqs;
+ int num_sys_eqs;
int num_eqs;
int reserved_eqs;
int num_comp_vectors;
--
cgit v1.2.1
From de966c5928026b100a989c8cef761d306310a184 Mon Sep 17 00:00:00 2001
From: Matan Barak <matanb@mellanox.com>
Date: Thu, 13 Nov 2014 14:45:33 +0200
Subject: net/mlx4_core: Support more than 64 VFs
We now allow up to 126 VFs. Note though that certain firmware
versions only allow up to 80 VFs. Moreover, old HCAs only support 64 VFs.
In these cases, we limit the maximum number of VFs to 64.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 1c560eb870ad..cf09e65c2901 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -95,7 +95,7 @@ enum {
enum {
MLX4_MAX_NUM_PF = 16,
- MLX4_MAX_NUM_VF = 64,
+ MLX4_MAX_NUM_VF = 126,
MLX4_MAX_NUM_VF_P_PORT = 64,
MLX4_MFUNC_MAX = 80,
MLX4_MAX_EQ_NUM = 1024,
@@ -190,7 +190,8 @@ enum {
MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL = 1LL << 14,
MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP = 1LL << 15,
MLX4_DEV_CAP_FLAG2_CONFIG_DEV = 1LL << 16,
- MLX4_DEV_CAP_FLAG2_SYS_EQS = 1LL << 17
+ MLX4_DEV_CAP_FLAG2_SYS_EQS = 1LL << 17,
+ MLX4_DEV_CAP_FLAG2_80_VFS = 1LL << 18
};
enum {
--
cgit v1.2.1
From 6eba82248ef47fd478f940a418429e3ec95cb3db Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@suug.ch>
Date: Thu, 13 Nov 2014 13:45:46 +0100
Subject: rhashtable: Drop gfp_flags arg in insert/remove functions
Reallocation is only required for shrinking and expanding and both rely
on a mutex for synchronization and callers of rhashtable_init() are in
non atomic context. Therefore, no reason to continue passing allocation
hints through the API.
Instead, use GFP_KERNEL and add __GFP_NOWARN | __GFP_NORETRY to allow
for silent fall back to vzalloc() without the OOM killer jumping in as
pointed out by Eric Dumazet and Eric W. Biederman.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/rhashtable.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index 473e26bdb91d..b93fd89b2e5e 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -99,16 +99,16 @@ int rhashtable_init(struct rhashtable *ht, struct rhashtable_params *params);
u32 rhashtable_hashfn(const struct rhashtable *ht, const void *key, u32 len);
u32 rhashtable_obj_hashfn(const struct rhashtable *ht, void *ptr);
-void rhashtable_insert(struct rhashtable *ht, struct rhash_head *node, gfp_t);
-bool rhashtable_remove(struct rhashtable *ht, struct rhash_head *node, gfp_t);
+void rhashtable_insert(struct rhashtable *ht, struct rhash_head *node);
+bool rhashtable_remove(struct rhashtable *ht, struct rhash_head *node);
void rhashtable_remove_pprev(struct rhashtable *ht, struct rhash_head *obj,
- struct rhash_head __rcu **pprev, gfp_t flags);
+ struct rhash_head __rcu **pprev);
bool rht_grow_above_75(const struct rhashtable *ht, size_t new_size);
bool rht_shrink_below_30(const struct rhashtable *ht, size_t new_size);
-int rhashtable_expand(struct rhashtable *ht, gfp_t flags);
-int rhashtable_shrink(struct rhashtable *ht, gfp_t flags);
+int rhashtable_expand(struct rhashtable *ht);
+int rhashtable_shrink(struct rhashtable *ht);
void *rhashtable_lookup(const struct rhashtable *ht, const void *key);
void *rhashtable_lookup_compare(const struct rhashtable *ht, u32 hash,
--
cgit v1.2.1
From ad53f92eb416d81e469fa8ea57153e59455e7175 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 13 Nov 2014 15:19:11 -0800
Subject: mm/page_alloc: fix incorrect isolation behavior by rechecking
migratetype
Before describing bugs itself, I first explain definition of freepage.
1. pages on buddy list are counted as freepage.
2. pages on isolate migratetype buddy list are *not* counted as freepage.
3. pages on cma buddy list are counted as CMA freepage, too.
Now, I describe problems and related patch.
Patch 1: There is race conditions on getting pageblock migratetype that
it results in misplacement of freepages on buddy list, incorrect
freepage count and un-availability of freepage.
Patch 2: Freepages on pcp list could have stale cached information to
determine migratetype of buddy list to go. This causes misplacement of
freepages on buddy list and incorrect freepage count.
Patch 4: Merging between freepages on different migratetype of
pageblocks will cause freepages accouting problem. This patch fixes it.
Without patchset [3], above problem doesn't happens on my CMA allocation
test, because CMA reserved pages aren't used at all. So there is no
chance for above race.
With patchset [3], I did simple CMA allocation test and get below
result:
- Virtual machine, 4 cpus, 1024 MB memory, 256 MB CMA reservation
- run kernel build (make -j16) on background
- 30 times CMA allocation(8MB * 30 = 240MB) attempts in 5 sec interval
- Result: more than 5000 freepage count are missed
With patchset [3] and this patchset, I found that no freepage count are
missed so that I conclude that problems are solved.
On my simple memory offlining test, these problems also occur on that
environment, too.
This patch (of 4):
There are two paths to reach core free function of buddy allocator,
__free_one_page(), one is free_one_page()->__free_one_page() and the
other is free_hot_cold_page()->free_pcppages_bulk()->__free_one_page().
Each paths has race condition causing serious problems. At first, this
patch is focused on first type of freepath. And then, following patch
will solve the problem in second type of freepath.
In the first type of freepath, we got migratetype of freeing page
without holding the zone lock, so it could be racy. There are two cases
of this race.
1. pages are added to isolate buddy list after restoring orignal
migratetype
CPU1 CPU2
get migratetype => return MIGRATE_ISOLATE
call free_one_page() with MIGRATE_ISOLATE
grab the zone lock
unisolate pageblock
release the zone lock
grab the zone lock
call __free_one_page() with MIGRATE_ISOLATE
freepage go into isolate buddy list,
although pageblock is already unisolated
This may cause two problems. One is that we can't use this page anymore
until next isolation attempt of this pageblock, because freepage is on
isolate buddy list. The other is that freepage accouting could be wrong
due to merging between different buddy list. Freepages on isolate buddy
list aren't counted as freepage, but ones on normal buddy list are
counted as freepage. If merge happens, buddy freepage on normal buddy
list is inevitably moved to isolate buddy list without any consideration
of freepage accouting so it could be incorrect.
2. pages are added to normal buddy list while pageblock is isolated.
It is similar with above case.
This also may cause two problems. One is that we can't keep these
freepages from being allocated. Although this pageblock is isolated,
freepage would be added to normal buddy list so that it could be
allocated without any restriction. And the other problem is same as
case 1, that it, incorrect freepage accouting.
This race condition would be prevented by checking migratetype again
with holding the zone lock. Because it is somewhat heavy operation and
it isn't needed in common case, we want to avoid rechecking as much as
possible. So this patch introduce new variable, nr_isolate_pageblock in
struct zone to check if there is isolated pageblock. With this, we can
avoid to re-check migratetype in common case and do it only if there is
isolated pageblock or migratetype is MIGRATE_ISOLATE. This solve above
mentioned problems.
Changes from v3:
Add one more check in free_one_page() that checks whether migratetype is
MIGRATE_ISOLATE or not. Without this, abovementioned case 1 could happens.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Laura Abbott <lauraa@codeaurora.org>
Cc: Heesub Shin <heesub.shin@samsung.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Ritesh Harjani <ritesh.list@gmail.com>
Cc: Gioh Kim <gioh.kim@lge.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mmzone.h | 9 +++++++++
include/linux/page-isolation.h | 8 ++++++++
2 files changed, 17 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 48bf12ef6620..ffe66e381c04 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -431,6 +431,15 @@ struct zone {
*/
int nr_migrate_reserve_block;
+#ifdef CONFIG_MEMORY_ISOLATION
+ /*
+ * Number of isolated pageblock. It is used to solve incorrect
+ * freepage counting problem due to racy retrieving migratetype
+ * of pageblock. Protected by zone->lock.
+ */
+ unsigned long nr_isolate_pageblock;
+#endif
+
#ifdef CONFIG_MEMORY_HOTPLUG
/* see spanned/present_pages for more description */
seqlock_t span_seqlock;
diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
index 3fff8e774067..2dc1e1697b45 100644
--- a/include/linux/page-isolation.h
+++ b/include/linux/page-isolation.h
@@ -2,6 +2,10 @@
#define __LINUX_PAGEISOLATION_H
#ifdef CONFIG_MEMORY_ISOLATION
+static inline bool has_isolate_pageblock(struct zone *zone)
+{
+ return zone->nr_isolate_pageblock;
+}
static inline bool is_migrate_isolate_page(struct page *page)
{
return get_pageblock_migratetype(page) == MIGRATE_ISOLATE;
@@ -11,6 +15,10 @@ static inline bool is_migrate_isolate(int migratetype)
return migratetype == MIGRATE_ISOLATE;
}
#else
+static inline bool has_isolate_pageblock(struct zone *zone)
+{
+ return false;
+}
static inline bool is_migrate_isolate_page(struct page *page)
{
return false;
--
cgit v1.2.1
From f784a3f19613901ca4539a5b0eed3bdc700e6ee7 Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Thu, 13 Nov 2014 15:19:39 -0800
Subject: mem-hotplug: reset node managed pages when hot-adding a new pgdat
In free_area_init_core(), zone->managed_pages is set to an approximate
value for lowmem, and will be adjusted when the bootmem allocator frees
pages into the buddy system.
But free_area_init_core() is also called by hotadd_new_pgdat() when
hot-adding memory. As a result, zone->managed_pages of the newly added
node's pgdat is set to an approximate value in the very beginning.
Even if the memory on that node has node been onlined,
/sys/device/system/node/nodeXXX/meminfo has wrong value:
hot-add node2 (memory not onlined)
cat /sys/device/system/node/node2/meminfo
Node 2 MemTotal: 33554432 kB
Node 2 MemFree: 0 kB
Node 2 MemUsed: 33554432 kB
Node 2 Active: 0 kB
This patch fixes this problem by reset node managed pages to 0 after
hot-adding a new node.
1. Move reset_managed_pages_done from reset_node_managed_pages() to
reset_all_zones_managed_pages()
2. Make reset_node_managed_pages() non-static
3. Call reset_node_managed_pages() in hotadd_new_pgdat() after pgdat
is initialized
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: <stable@vger.kernel.org> [3.16+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/bootmem.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 4e2bd4c95b66..0995c2de8162 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -46,6 +46,7 @@ extern unsigned long init_bootmem_node(pg_data_t *pgdat,
extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
extern unsigned long free_all_bootmem(void);
+extern void reset_node_managed_pages(pg_data_t *pgdat);
extern void reset_all_zones_managed_pages(void);
extern void free_bootmem_node(pg_data_t *pgdat,
--
cgit v1.2.1
From f30c59e921f12b209852e1ddc197dc6a8fb0142b Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Wed, 5 Nov 2014 21:57:40 +0530
Subject: mm: Update generic gup implementation to handle hugepage directory
Update generic gup implementation with powerpc specific details.
On powerpc at pmd level we can have hugepte, normal pmd pointer
or a pointer to the hugepage directory.
Tested-by: Steve Capper <steve.capper@linaro.org>
Acked-by: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
include/linux/hugetlb.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
(limited to 'include')
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 6e6d338641fe..e6b62f30ab21 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -175,6 +175,52 @@ static inline void __unmap_hugepage_range(struct mmu_gather *tlb,
}
#endif /* !CONFIG_HUGETLB_PAGE */
+/*
+ * hugepages at page global directory. If arch support
+ * hugepages at pgd level, they need to define this.
+ */
+#ifndef pgd_huge
+#define pgd_huge(x) 0
+#endif
+
+#ifndef pgd_write
+static inline int pgd_write(pgd_t pgd)
+{
+ BUG();
+ return 0;
+}
+#endif
+
+#ifndef pud_write
+static inline int pud_write(pud_t pud)
+{
+ BUG();
+ return 0;
+}
+#endif
+
+#ifndef is_hugepd
+/*
+ * Some architectures requires a hugepage directory format that is
+ * required to support multiple hugepage sizes. For example
+ * a4fe3ce76 "powerpc/mm: Allow more flexible layouts for hugepage pagetables"
+ * introduced the same on powerpc. This allows for a more flexible hugepage
+ * pagetable layout.
+ */
+typedef struct { unsigned long pd; } hugepd_t;
+#define is_hugepd(hugepd) (0)
+#define __hugepd(x) ((hugepd_t) { (x) })
+static inline int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
+ unsigned pdshift, unsigned long end,
+ int write, struct page **pages, int *nr)
+{
+ return 0;
+}
+#else
+extern int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
+ unsigned pdshift, unsigned long end,
+ int write, struct page **pages, int *nr);
+#endif
#define HUGETLB_ANON_FILE "anon_hugepage"
--
cgit v1.2.1
From 6a2c4232ece145d8b5a8f95f767bd6d0d2d2f2bb Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 4 Nov 2014 04:51:40 -0800
Subject: drm/i915: Make the physical object coherent with GTT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Currently objects for which the hardware needs a contiguous physical
address are allocated a shadow backing storage to satisfy the contraint.
This shadow buffer is not wired into the normal obj->pages and so the
physical object is incoherent with accesses via the GPU, GTT and CPU. By
setting up the appropriate scatter-gather table, we can allow userspace
to access the physical object via either a GTT mmaping of or by rendering
into the GEM bo. However, keeping the CPU mmap of the shmemfs backing
storage coherent with the contiguous shadow is not yet possible.
Fortuituously, CPU mmaps of objects requiring physical addresses are not
expected to be coherent anyway.
This allows the physical constraint of the GEM object to be transparent
to userspace and allow it to efficiently render into or update them via
the GTT and GPU.
v2: Fix leak of pci handle spotted by Ville
v3: Remove the now duplicate call to detach_phys_object during free.
v4: Wait for rendering before pwrite. As this patch makes it possible to
render into the phys object, we should make it correct as well!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/uapi/drm/i915_drm.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index 2ec0efcaa719..250262265ee3 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -340,6 +340,7 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_HAS_EXEC_HANDLE_LUT 26
#define I915_PARAM_HAS_WT 27
#define I915_PARAM_CMD_PARSER_VERSION 28
+#define I915_PARAM_HAS_COHERENT_PHYS_GTT 29
typedef struct drm_i915_getparam {
int param;
--
cgit v1.2.1
From 6d09dc6b74caaca83e32e67f2454406041d58fb0 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 14 Nov 2014 13:26:52 +0100
Subject: of.h: Keep extern declaration of of_* variables when !CONFIG_OF
Keep the extern declaration of of_allnodes and friends, when building without
of support, this way code using them can be written like this:
if (IS_ENABLED(CONFIG_OF_PLATFORM) && of_chosen) {
for_each_child_of_node(of_chosen, np)
...
}
And rely on the compiler optimizing it away, avoiding the need for #ifdef-ery.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
include/linux/of.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 6545e7aec7bb..f83ca9dddcba 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -105,8 +105,6 @@ static inline struct device_node *of_node_get(struct device_node *node)
static inline void of_node_put(struct device_node *node) { }
#endif /* !CONFIG_OF_DYNAMIC */
-#ifdef CONFIG_OF
-
/* Pointer for first entry in chain of all nodes. */
extern struct device_node *of_allnodes;
extern struct device_node *of_chosen;
@@ -114,6 +112,7 @@ extern struct device_node *of_aliases;
extern struct device_node *of_stdout;
extern raw_spinlock_t devtree_lock;
+#ifdef CONFIG_OF
static inline bool of_have_populated_dt(void)
{
return of_allnodes != NULL;
--
cgit v1.2.1
From a720b41c41f5a7e4c51558cf087882c57331581f Mon Sep 17 00:00:00 2001
From: Antonios Motakis <a.motakis@virtualopensystems.com>
Date: Mon, 13 Oct 2014 14:06:16 +0100
Subject: iommu/arm-smmu: change IOMMU_EXEC to IOMMU_NOEXEC
Exposing the XN flag of the SMMU driver as IOMMU_NOEXEC instead of
IOMMU_EXEC makes it enforceable, since for IOMMUs that don't support
the XN flag pages will always be executable.
Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/linux/iommu.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index e6a7c9ff72f2..f47383a05d34 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -27,7 +27,7 @@
#define IOMMU_READ (1 << 0)
#define IOMMU_WRITE (1 << 1)
#define IOMMU_CACHE (1 << 2) /* DMA cache coherency */
-#define IOMMU_EXEC (1 << 3)
+#define IOMMU_NOEXEC (1 << 3)
struct iommu_ops;
struct iommu_group;
--
cgit v1.2.1
From c49866493b1ffb7c0a7963a1e3c0094e78760184 Mon Sep 17 00:00:00 2001
From: Antonios Motakis <a.motakis@virtualopensystems.com>
Date: Mon, 13 Oct 2014 14:06:17 +0100
Subject: iommu: add capability IOMMU_CAP_NOEXEC
Some IOMMUs accept an IOMMU_NOEXEC protection flag in addition to
IOMMU_READ and IOMMU_WRITE. Expose this as an IOMMU capability.
Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/linux/iommu.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index f47383a05d34..e438b30f062b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -61,6 +61,7 @@ enum iommu_cap {
IOMMU_CAP_CACHE_COHERENCY, /* IOMMU can enforce cache coherent DMA
transactions */
IOMMU_CAP_INTR_REMAP, /* IOMMU supports interrupt isolation */
+ IOMMU_CAP_NOEXEC, /* IOMMU_NOEXEC flag */
};
/*
--
cgit v1.2.1
From edcf58bc031e621f519c9dfce3c7e1ea6880c70a Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Mon, 10 Nov 2014 14:28:26 -0300
Subject: [media] Move mediabus format definition to a more standard place
Define MEDIA_BUS_FMT macros (re-using the values defined in the
v4l2_mbus_pixelcode enum) into a separate header file so that they can be
used from the DRM/KMS subsystem without any reference to the V4L2
subsystem.
Then set V4L2_MBUS_FMT definitions to the MEDIA_BUS_FMT values using the
V4L2_MBUS_FROM_MEDIA_BUS_FMT macro.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/media-bus-format.h | 125 +++++++++++++++++++++++
include/uapi/linux/v4l2-mediabus.h | 184 +++++++++++++++-------------------
3 files changed, 206 insertions(+), 104 deletions(-)
create mode 100644 include/uapi/linux/media-bus-format.h
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index b70237e8bc37..ed39ac84c0f4 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -241,6 +241,7 @@ header-y += map_to_7segment.h
header-y += matroxfb.h
header-y += mdio.h
header-y += media.h
+header-y += media-bus-format.h
header-y += mei.h
header-y += memfd.h
header-y += mempolicy.h
diff --git a/include/uapi/linux/media-bus-format.h b/include/uapi/linux/media-bus-format.h
new file mode 100644
index 000000000000..23b40908be30
--- /dev/null
+++ b/include/uapi/linux/media-bus-format.h
@@ -0,0 +1,125 @@
+/*
+ * Media Bus API header
+ *
+ * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __LINUX_MEDIA_BUS_FORMAT_H
+#define __LINUX_MEDIA_BUS_FORMAT_H
+
+/*
+ * These bus formats uniquely identify data formats on the data bus. Format 0
+ * is reserved, MEDIA_BUS_FMT_FIXED shall be used by host-client pairs, where
+ * the data format is fixed. Additionally, "2X8" means that one pixel is
+ * transferred in two 8-bit samples, "BE" or "LE" specify in which order those
+ * samples are transferred over the bus: "LE" means that the least significant
+ * bits are transferred first, "BE" means that the most significant bits are
+ * transferred first, and "PADHI" and "PADLO" define which bits - low or high,
+ * in the incomplete high byte, are filled with padding bits.
+ *
+ * The bus formats are grouped by type, bus_width, bits per component, samples
+ * per pixel and order of subsamples. Numerical values are sorted using generic
+ * numerical sort order (8 thus comes before 10).
+ *
+ * As their value can't change when a new bus format is inserted in the
+ * enumeration, the bus formats are explicitly given a numerical value. The next
+ * free values for each category are listed below, update them when inserting
+ * new pixel codes.
+ */
+
+#define MEDIA_BUS_FMT_FIXED 0x0001
+
+/* RGB - next is 0x100e */
+#define MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE 0x1001
+#define MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE 0x1002
+#define MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE 0x1003
+#define MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE 0x1004
+#define MEDIA_BUS_FMT_BGR565_2X8_BE 0x1005
+#define MEDIA_BUS_FMT_BGR565_2X8_LE 0x1006
+#define MEDIA_BUS_FMT_RGB565_2X8_BE 0x1007
+#define MEDIA_BUS_FMT_RGB565_2X8_LE 0x1008
+#define MEDIA_BUS_FMT_RGB666_1X18 0x1009
+#define MEDIA_BUS_FMT_RGB888_1X24 0x100a
+#define MEDIA_BUS_FMT_RGB888_2X12_BE 0x100b
+#define MEDIA_BUS_FMT_RGB888_2X12_LE 0x100c
+#define MEDIA_BUS_FMT_ARGB8888_1X32 0x100d
+
+/* YUV (including grey) - next is 0x2024 */
+#define MEDIA_BUS_FMT_Y8_1X8 0x2001
+#define MEDIA_BUS_FMT_UV8_1X8 0x2015
+#define MEDIA_BUS_FMT_UYVY8_1_5X8 0x2002
+#define MEDIA_BUS_FMT_VYUY8_1_5X8 0x2003
+#define MEDIA_BUS_FMT_YUYV8_1_5X8 0x2004
+#define MEDIA_BUS_FMT_YVYU8_1_5X8 0x2005
+#define MEDIA_BUS_FMT_UYVY8_2X8 0x2006
+#define MEDIA_BUS_FMT_VYUY8_2X8 0x2007
+#define MEDIA_BUS_FMT_YUYV8_2X8 0x2008
+#define MEDIA_BUS_FMT_YVYU8_2X8 0x2009
+#define MEDIA_BUS_FMT_Y10_1X10 0x200a
+#define MEDIA_BUS_FMT_UYVY10_2X10 0x2018
+#define MEDIA_BUS_FMT_VYUY10_2X10 0x2019
+#define MEDIA_BUS_FMT_YUYV10_2X10 0x200b
+#define MEDIA_BUS_FMT_YVYU10_2X10 0x200c
+#define MEDIA_BUS_FMT_Y12_1X12 0x2013
+#define MEDIA_BUS_FMT_UYVY8_1X16 0x200f
+#define MEDIA_BUS_FMT_VYUY8_1X16 0x2010
+#define MEDIA_BUS_FMT_YUYV8_1X16 0x2011
+#define MEDIA_BUS_FMT_YVYU8_1X16 0x2012
+#define MEDIA_BUS_FMT_YDYUYDYV8_1X16 0x2014
+#define MEDIA_BUS_FMT_UYVY10_1X20 0x201a
+#define MEDIA_BUS_FMT_VYUY10_1X20 0x201b
+#define MEDIA_BUS_FMT_YUYV10_1X20 0x200d
+#define MEDIA_BUS_FMT_YVYU10_1X20 0x200e
+#define MEDIA_BUS_FMT_YUV10_1X30 0x2016
+#define MEDIA_BUS_FMT_AYUV8_1X32 0x2017
+#define MEDIA_BUS_FMT_UYVY12_2X12 0x201c
+#define MEDIA_BUS_FMT_VYUY12_2X12 0x201d
+#define MEDIA_BUS_FMT_YUYV12_2X12 0x201e
+#define MEDIA_BUS_FMT_YVYU12_2X12 0x201f
+#define MEDIA_BUS_FMT_UYVY12_1X24 0x2020
+#define MEDIA_BUS_FMT_VYUY12_1X24 0x2021
+#define MEDIA_BUS_FMT_YUYV12_1X24 0x2022
+#define MEDIA_BUS_FMT_YVYU12_1X24 0x2023
+
+/* Bayer - next is 0x3019 */
+#define MEDIA_BUS_FMT_SBGGR8_1X8 0x3001
+#define MEDIA_BUS_FMT_SGBRG8_1X8 0x3013
+#define MEDIA_BUS_FMT_SGRBG8_1X8 0x3002
+#define MEDIA_BUS_FMT_SRGGB8_1X8 0x3014
+#define MEDIA_BUS_FMT_SBGGR10_ALAW8_1X8 0x3015
+#define MEDIA_BUS_FMT_SGBRG10_ALAW8_1X8 0x3016
+#define MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8 0x3017
+#define MEDIA_BUS_FMT_SRGGB10_ALAW8_1X8 0x3018
+#define MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8 0x300b
+#define MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8 0x300c
+#define MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8 0x3009
+#define MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8 0x300d
+#define MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE 0x3003
+#define MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE 0x3004
+#define MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_BE 0x3005
+#define MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_LE 0x3006
+#define MEDIA_BUS_FMT_SBGGR10_1X10 0x3007
+#define MEDIA_BUS_FMT_SGBRG10_1X10 0x300e
+#define MEDIA_BUS_FMT_SGRBG10_1X10 0x300a
+#define MEDIA_BUS_FMT_SRGGB10_1X10 0x300f
+#define MEDIA_BUS_FMT_SBGGR12_1X12 0x3008
+#define MEDIA_BUS_FMT_SGBRG12_1X12 0x3010
+#define MEDIA_BUS_FMT_SGRBG12_1X12 0x3011
+#define MEDIA_BUS_FMT_SRGGB12_1X12 0x3012
+
+/* JPEG compressed formats - next is 0x4002 */
+#define MEDIA_BUS_FMT_JPEG_1X8 0x4001
+
+/* Vendor specific formats - next is 0x5002 */
+
+/* S5C73M3 sensor specific interleaved UYVY and JPEG */
+#define MEDIA_BUS_FMT_S5C_UYVY_JPEG_1X8 0x5001
+
+/* HSV - next is 0x6002 */
+#define MEDIA_BUS_FMT_AHSV8888_1X32 0x6001
+
+#endif /* __LINUX_MEDIA_BUS_FORMAT_H */
diff --git a/include/uapi/linux/v4l2-mediabus.h b/include/uapi/linux/v4l2-mediabus.h
index 1445e858854f..26180844c6b8 100644
--- a/include/uapi/linux/v4l2-mediabus.h
+++ b/include/uapi/linux/v4l2-mediabus.h
@@ -11,120 +11,96 @@
#ifndef __LINUX_V4L2_MEDIABUS_H
#define __LINUX_V4L2_MEDIABUS_H
+#include <linux/media-bus-format.h>
#include <linux/types.h>
#include <linux/videodev2.h>
-/*
- * These pixel codes uniquely identify data formats on the media bus. Mostly
- * they correspond to similarly named V4L2_PIX_FMT_* formats, format 0 is
- * reserved, V4L2_MBUS_FMT_FIXED shall be used by host-client pairs, where the
- * data format is fixed. Additionally, "2X8" means that one pixel is transferred
- * in two 8-bit samples, "BE" or "LE" specify in which order those samples are
- * transferred over the bus: "LE" means that the least significant bits are
- * transferred first, "BE" means that the most significant bits are transferred
- * first, and "PADHI" and "PADLO" define which bits - low or high, in the
- * incomplete high byte, are filled with padding bits.
- *
- * The pixel codes are grouped by type, bus_width, bits per component, samples
- * per pixel and order of subsamples. Numerical values are sorted using generic
- * numerical sort order (8 thus comes before 10).
- *
- * As their value can't change when a new pixel code is inserted in the
- * enumeration, the pixel codes are explicitly given a numerical value. The next
- * free values for each category are listed below, update them when inserting
- * new pixel codes.
- */
-enum v4l2_mbus_pixelcode {
- V4L2_MBUS_FMT_FIXED = 0x0001,
+#define V4L2_MBUS_FROM_MEDIA_BUS_FMT(name) \
+ V4L2_MBUS_FMT_ ## name = MEDIA_BUS_FMT_ ## name
- /* RGB - next is 0x100e */
- V4L2_MBUS_FMT_RGB444_2X8_PADHI_BE = 0x1001,
- V4L2_MBUS_FMT_RGB444_2X8_PADHI_LE = 0x1002,
- V4L2_MBUS_FMT_RGB555_2X8_PADHI_BE = 0x1003,
- V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE = 0x1004,
- V4L2_MBUS_FMT_BGR565_2X8_BE = 0x1005,
- V4L2_MBUS_FMT_BGR565_2X8_LE = 0x1006,
- V4L2_MBUS_FMT_RGB565_2X8_BE = 0x1007,
- V4L2_MBUS_FMT_RGB565_2X8_LE = 0x1008,
- V4L2_MBUS_FMT_RGB666_1X18 = 0x1009,
- V4L2_MBUS_FMT_RGB888_1X24 = 0x100a,
- V4L2_MBUS_FMT_RGB888_2X12_BE = 0x100b,
- V4L2_MBUS_FMT_RGB888_2X12_LE = 0x100c,
- V4L2_MBUS_FMT_ARGB8888_1X32 = 0x100d,
+enum v4l2_mbus_pixelcode {
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(FIXED),
- /* YUV (including grey) - next is 0x2024 */
- V4L2_MBUS_FMT_Y8_1X8 = 0x2001,
- V4L2_MBUS_FMT_UV8_1X8 = 0x2015,
- V4L2_MBUS_FMT_UYVY8_1_5X8 = 0x2002,
- V4L2_MBUS_FMT_VYUY8_1_5X8 = 0x2003,
- V4L2_MBUS_FMT_YUYV8_1_5X8 = 0x2004,
- V4L2_MBUS_FMT_YVYU8_1_5X8 = 0x2005,
- V4L2_MBUS_FMT_UYVY8_2X8 = 0x2006,
- V4L2_MBUS_FMT_VYUY8_2X8 = 0x2007,
- V4L2_MBUS_FMT_YUYV8_2X8 = 0x2008,
- V4L2_MBUS_FMT_YVYU8_2X8 = 0x2009,
- V4L2_MBUS_FMT_Y10_1X10 = 0x200a,
- V4L2_MBUS_FMT_UYVY10_2X10 = 0x2018,
- V4L2_MBUS_FMT_VYUY10_2X10 = 0x2019,
- V4L2_MBUS_FMT_YUYV10_2X10 = 0x200b,
- V4L2_MBUS_FMT_YVYU10_2X10 = 0x200c,
- V4L2_MBUS_FMT_Y12_1X12 = 0x2013,
- V4L2_MBUS_FMT_UYVY8_1X16 = 0x200f,
- V4L2_MBUS_FMT_VYUY8_1X16 = 0x2010,
- V4L2_MBUS_FMT_YUYV8_1X16 = 0x2011,
- V4L2_MBUS_FMT_YVYU8_1X16 = 0x2012,
- V4L2_MBUS_FMT_YDYUYDYV8_1X16 = 0x2014,
- V4L2_MBUS_FMT_UYVY10_1X20 = 0x201a,
- V4L2_MBUS_FMT_VYUY10_1X20 = 0x201b,
- V4L2_MBUS_FMT_YUYV10_1X20 = 0x200d,
- V4L2_MBUS_FMT_YVYU10_1X20 = 0x200e,
- V4L2_MBUS_FMT_YUV10_1X30 = 0x2016,
- V4L2_MBUS_FMT_AYUV8_1X32 = 0x2017,
- V4L2_MBUS_FMT_UYVY12_2X12 = 0x201c,
- V4L2_MBUS_FMT_VYUY12_2X12 = 0x201d,
- V4L2_MBUS_FMT_YUYV12_2X12 = 0x201e,
- V4L2_MBUS_FMT_YVYU12_2X12 = 0x201f,
- V4L2_MBUS_FMT_UYVY12_1X24 = 0x2020,
- V4L2_MBUS_FMT_VYUY12_1X24 = 0x2021,
- V4L2_MBUS_FMT_YUYV12_1X24 = 0x2022,
- V4L2_MBUS_FMT_YVYU12_1X24 = 0x2023,
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB444_2X8_PADHI_BE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB444_2X8_PADHI_LE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB555_2X8_PADHI_BE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB555_2X8_PADHI_LE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(BGR565_2X8_BE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(BGR565_2X8_LE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB565_2X8_BE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB565_2X8_LE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB666_1X18),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB888_1X24),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB888_2X12_BE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(RGB888_2X12_LE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(ARGB8888_1X32),
- /* Bayer - next is 0x3019 */
- V4L2_MBUS_FMT_SBGGR8_1X8 = 0x3001,
- V4L2_MBUS_FMT_SGBRG8_1X8 = 0x3013,
- V4L2_MBUS_FMT_SGRBG8_1X8 = 0x3002,
- V4L2_MBUS_FMT_SRGGB8_1X8 = 0x3014,
- V4L2_MBUS_FMT_SBGGR10_ALAW8_1X8 = 0x3015,
- V4L2_MBUS_FMT_SGBRG10_ALAW8_1X8 = 0x3016,
- V4L2_MBUS_FMT_SGRBG10_ALAW8_1X8 = 0x3017,
- V4L2_MBUS_FMT_SRGGB10_ALAW8_1X8 = 0x3018,
- V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8 = 0x300b,
- V4L2_MBUS_FMT_SGBRG10_DPCM8_1X8 = 0x300c,
- V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8 = 0x3009,
- V4L2_MBUS_FMT_SRGGB10_DPCM8_1X8 = 0x300d,
- V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_BE = 0x3003,
- V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE = 0x3004,
- V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_BE = 0x3005,
- V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_LE = 0x3006,
- V4L2_MBUS_FMT_SBGGR10_1X10 = 0x3007,
- V4L2_MBUS_FMT_SGBRG10_1X10 = 0x300e,
- V4L2_MBUS_FMT_SGRBG10_1X10 = 0x300a,
- V4L2_MBUS_FMT_SRGGB10_1X10 = 0x300f,
- V4L2_MBUS_FMT_SBGGR12_1X12 = 0x3008,
- V4L2_MBUS_FMT_SGBRG12_1X12 = 0x3010,
- V4L2_MBUS_FMT_SGRBG12_1X12 = 0x3011,
- V4L2_MBUS_FMT_SRGGB12_1X12 = 0x3012,
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(Y8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(UV8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(UYVY8_1_5X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(VYUY8_1_5X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YUYV8_1_5X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YVYU8_1_5X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(UYVY8_2X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(VYUY8_2X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YUYV8_2X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YVYU8_2X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(Y10_1X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(UYVY10_2X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(VYUY10_2X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YUYV10_2X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YVYU10_2X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(Y12_1X12),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(UYVY8_1X16),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(VYUY8_1X16),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YUYV8_1X16),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YVYU8_1X16),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YDYUYDYV8_1X16),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(UYVY10_1X20),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(VYUY10_1X20),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YUYV10_1X20),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YVYU10_1X20),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YUV10_1X30),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(AYUV8_1X32),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(UYVY12_2X12),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(VYUY12_2X12),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YUYV12_2X12),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YVYU12_2X12),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(UYVY12_1X24),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(VYUY12_1X24),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YUYV12_1X24),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(YVYU12_1X24),
- /* JPEG compressed formats - next is 0x4002 */
- V4L2_MBUS_FMT_JPEG_1X8 = 0x4001,
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGBRG8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGRBG8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SRGGB8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR10_ALAW8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGBRG10_ALAW8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGRBG10_ALAW8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SRGGB10_ALAW8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR10_DPCM8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGBRG10_DPCM8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGRBG10_DPCM8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SRGGB10_DPCM8_1X8),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR10_2X8_PADHI_BE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR10_2X8_PADHI_LE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR10_2X8_PADLO_BE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR10_2X8_PADLO_LE),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR10_1X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGBRG10_1X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGRBG10_1X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SRGGB10_1X10),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SBGGR12_1X12),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGBRG12_1X12),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SGRBG12_1X12),
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(SRGGB12_1X12),
- /* Vendor specific formats - next is 0x5002 */
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(JPEG_1X8),
- /* S5C73M3 sensor specific interleaved UYVY and JPEG */
- V4L2_MBUS_FMT_S5C_UYVY_JPEG_1X8 = 0x5001,
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(S5C_UYVY_JPEG_1X8),
- /* HSV - next is 0x6002 */
- V4L2_MBUS_FMT_AHSV8888_1X32 = 0x6001,
+ V4L2_MBUS_FROM_MEDIA_BUS_FMT(AHSV8888_1X32),
};
/**
--
cgit v1.2.1
From 32b32ce84a02d5e3538941e71d2792ebbef8f795 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Mon, 10 Nov 2014 14:28:28 -0300
Subject: [media] Make use of the new media_bus_format definitions
Replace references to the v4l2_mbus_pixelcode enum with the new
media_bus_format enum in all common headers.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/v4l2-mediabus.h | 2 +-
include/media/v4l2-subdev.h | 2 +-
include/uapi/linux/v4l2-subdev.h | 6 +++---
3 files changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h
index 395c4a95a42a..59d7397fb0ea 100644
--- a/include/media/v4l2-mediabus.h
+++ b/include/media/v4l2-mediabus.h
@@ -98,7 +98,7 @@ static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
const struct v4l2_pix_format *pix_fmt,
- enum v4l2_mbus_pixelcode code)
+ u32 code)
{
mbus_fmt->width = pix_fmt->width;
mbus_fmt->height = pix_fmt->height;
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index d7465725773d..5860292d42eb 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -341,7 +341,7 @@ struct v4l2_subdev_video_ops {
int (*query_dv_timings)(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings);
int (*enum_mbus_fmt)(struct v4l2_subdev *sd, unsigned int index,
- enum v4l2_mbus_pixelcode *code);
+ u32 *code);
int (*enum_mbus_fsizes)(struct v4l2_subdev *sd,
struct v4l2_frmsizeenum *fsize);
int (*g_mbus_fmt)(struct v4l2_subdev *sd,
diff --git a/include/uapi/linux/v4l2-subdev.h b/include/uapi/linux/v4l2-subdev.h
index a619cdd300ac..e0a7e3da498a 100644
--- a/include/uapi/linux/v4l2-subdev.h
+++ b/include/uapi/linux/v4l2-subdev.h
@@ -68,7 +68,7 @@ struct v4l2_subdev_crop {
* struct v4l2_subdev_mbus_code_enum - Media bus format enumeration
* @pad: pad number, as reported by the media API
* @index: format index during enumeration
- * @code: format code (from enum v4l2_mbus_pixelcode)
+ * @code: format code (MEDIA_BUS_FMT_ definitions)
*/
struct v4l2_subdev_mbus_code_enum {
__u32 pad;
@@ -81,7 +81,7 @@ struct v4l2_subdev_mbus_code_enum {
* struct v4l2_subdev_frame_size_enum - Media bus format enumeration
* @pad: pad number, as reported by the media API
* @index: format index during enumeration
- * @code: format code (from enum v4l2_mbus_pixelcode)
+ * @code: format code (MEDIA_BUS_FMT_ definitions)
*/
struct v4l2_subdev_frame_size_enum {
__u32 index;
@@ -109,7 +109,7 @@ struct v4l2_subdev_frame_interval {
* struct v4l2_subdev_frame_interval_enum - Frame interval enumeration
* @pad: pad number, as reported by the media API
* @index: frame interval index during enumeration
- * @code: format code (from enum v4l2_mbus_pixelcode)
+ * @code: format code (MEDIA_BUS_FMT_ definitions)
* @width: frame width in pixels
* @height: frame height in pixels
* @interval: frame interval in seconds
--
cgit v1.2.1
From 27ffaeb0ab160852c87e2dfa505594020e9a3a06 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Mon, 10 Nov 2014 14:28:31 -0300
Subject: [media] platform: Make use of media_bus_format enum
In order to have subsytem agnostic media bus format definitions we've
moved media bus definition to include/uapi/linux/media-bus-format.h and
prefixed values with MEDIA_BUS_FMT instead of V4L2_MBUS_FMT.
Reference new definitions in all platform drivers.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/davinci/vpbe.h | 2 +-
include/media/davinci/vpbe_venc.h | 5 ++---
include/media/exynos-fimc.h | 2 +-
include/media/soc_camera.h | 2 +-
include/media/soc_mediabus.h | 6 +++---
5 files changed, 8 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/media/davinci/vpbe.h b/include/media/davinci/vpbe.h
index 57585c7004a4..4376beeb28c2 100644
--- a/include/media/davinci/vpbe.h
+++ b/include/media/davinci/vpbe.h
@@ -63,7 +63,7 @@ struct vpbe_output {
* output basis. If per mode is needed, we may have to move this to
* mode_info structure
*/
- enum v4l2_mbus_pixelcode if_params;
+ u32 if_params;
};
/* encoder configuration info */
diff --git a/include/media/davinci/vpbe_venc.h b/include/media/davinci/vpbe_venc.h
index 476fafc2f522..3dbd20026107 100644
--- a/include/media/davinci/vpbe_venc.h
+++ b/include/media/davinci/vpbe_venc.h
@@ -30,11 +30,10 @@
#define VENC_SECOND_FIELD BIT(2)
struct venc_platform_data {
- int (*setup_pinmux)(enum v4l2_mbus_pixelcode if_type,
- int field);
+ int (*setup_pinmux)(u32 if_type, int field);
int (*setup_clock)(enum vpbe_enc_timings_type type,
unsigned int pixclock);
- int (*setup_if_config)(enum v4l2_mbus_pixelcode pixcode);
+ int (*setup_if_config)(u32 pixcode);
/* Number of LCD outputs supported */
int num_lcd_outputs;
struct vpbe_if_params *lcd_if_params;
diff --git a/include/media/exynos-fimc.h b/include/media/exynos-fimc.h
index aa44660e2041..69bcd2a07d5c 100644
--- a/include/media/exynos-fimc.h
+++ b/include/media/exynos-fimc.h
@@ -101,7 +101,7 @@ struct fimc_source_info {
* @flags: flags indicating which operation mode format applies to
*/
struct fimc_fmt {
- enum v4l2_mbus_pixelcode mbus_code;
+ u32 mbus_code;
char *name;
u32 fourcc;
u32 color;
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index 865246b00127..2f6261f3e570 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -296,7 +296,7 @@ const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc(
* format setup.
*/
struct soc_camera_format_xlate {
- enum v4l2_mbus_pixelcode code;
+ u32 code;
const struct soc_mbus_pixelfmt *host_fmt;
};
diff --git a/include/media/soc_mediabus.h b/include/media/soc_mediabus.h
index d33f6d059692..2ff773785fb6 100644
--- a/include/media/soc_mediabus.h
+++ b/include/media/soc_mediabus.h
@@ -91,16 +91,16 @@ struct soc_mbus_pixelfmt {
* @fmt: pixel format description
*/
struct soc_mbus_lookup {
- enum v4l2_mbus_pixelcode code;
+ u32 code;
struct soc_mbus_pixelfmt fmt;
};
const struct soc_mbus_pixelfmt *soc_mbus_find_fmtdesc(
- enum v4l2_mbus_pixelcode code,
+ u32 code,
const struct soc_mbus_lookup *lookup,
int n);
const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc(
- enum v4l2_mbus_pixelcode code);
+ u32 code);
s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf);
s32 soc_mbus_image_size(const struct soc_mbus_pixelfmt *mf,
u32 bytes_per_line, u32 height);
--
cgit v1.2.1
From aa1b4da6af67d5c6a4e933c2d30890c6f282f505 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Mon, 10 Nov 2014 14:28:35 -0300
Subject: [media] v4l: Forbid usage of V4L2_MBUS_FMT definitions inside the
kernel
Place v4l2_mbus_pixelcode in a #ifndef __KERNEL__ section so that kernel
users don't have access to these definitions.
We have to keep this definition for user-space users even though they're
encouraged to move to the new media_bus_format enum.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/v4l2-mediabus.h | 45 ++++++++++++++++++++++++--------------
1 file changed, 28 insertions(+), 17 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/v4l2-mediabus.h b/include/uapi/linux/v4l2-mediabus.h
index 26180844c6b8..b1934a3961e4 100644
--- a/include/uapi/linux/v4l2-mediabus.h
+++ b/include/uapi/linux/v4l2-mediabus.h
@@ -15,6 +15,33 @@
#include <linux/types.h>
#include <linux/videodev2.h>
+/**
+ * struct v4l2_mbus_framefmt - frame format on the media bus
+ * @width: frame width
+ * @height: frame height
+ * @code: data format code (from enum v4l2_mbus_pixelcode)
+ * @field: used interlacing type (from enum v4l2_field)
+ * @colorspace: colorspace of the data (from enum v4l2_colorspace)
+ */
+struct v4l2_mbus_framefmt {
+ __u32 width;
+ __u32 height;
+ __u32 code;
+ __u32 field;
+ __u32 colorspace;
+ __u32 reserved[7];
+};
+
+#ifndef __KERNEL__
+/*
+ * enum v4l2_mbus_pixelcode and its definitions are now deprecated, and
+ * MEDIA_BUS_FMT_ definitions (defined in media-bus-format.h) should be
+ * used instead.
+ *
+ * New defines should only be added to media-bus-format.h. The
+ * v4l2_mbus_pixelcode enum is frozen.
+ */
+
#define V4L2_MBUS_FROM_MEDIA_BUS_FMT(name) \
V4L2_MBUS_FMT_ ## name = MEDIA_BUS_FMT_ ## name
@@ -102,22 +129,6 @@ enum v4l2_mbus_pixelcode {
V4L2_MBUS_FROM_MEDIA_BUS_FMT(AHSV8888_1X32),
};
-
-/**
- * struct v4l2_mbus_framefmt - frame format on the media bus
- * @width: frame width
- * @height: frame height
- * @code: data format code (from enum v4l2_mbus_pixelcode)
- * @field: used interlacing type (from enum v4l2_field)
- * @colorspace: colorspace of the data (from enum v4l2_colorspace)
- */
-struct v4l2_mbus_framefmt {
- __u32 width;
- __u32 height;
- __u32 code;
- __u32 field;
- __u32 colorspace;
- __u32 reserved[7];
-};
+#endif /* __KERNEL__ */
#endif
--
cgit v1.2.1
From 98bea620c7ff301f9a7a6c31b2aca30964aa2fab Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@kernel.org>
Date: Mon, 10 Nov 2014 17:34:41 -0300
Subject: [media] si4713: add device tree support
Add device tree support by changing the device registration order.
In the device tree the si4713 node is a normal I2C device, which
will be probed as such. Thus the V4L device must be probed from
the I2C device and not the other way around.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/radio-si4713.h | 30 ------------------------------
include/media/si4713.h | 1 +
2 files changed, 1 insertion(+), 30 deletions(-)
delete mode 100644 include/media/radio-si4713.h
(limited to 'include')
diff --git a/include/media/radio-si4713.h b/include/media/radio-si4713.h
deleted file mode 100644
index f6aae29c7741..000000000000
--- a/include/media/radio-si4713.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * include/media/radio-si4713.h
- *
- * Board related data definitions for Si4713 radio transmitter chip.
- *
- * Copyright (c) 2009 Nokia Corporation
- * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- *
- */
-
-#ifndef RADIO_SI4713_H
-#define RADIO_SI4713_H
-
-#include <linux/i2c.h>
-
-#define SI4713_NAME "radio-si4713"
-
-/*
- * Platform dependent definition
- */
-struct radio_si4713_platform_data {
- int i2c_bus;
- struct i2c_board_info *subdev_board_info;
-};
-
-#endif /* ifndef RADIO_SI4713_H*/
diff --git a/include/media/si4713.h b/include/media/si4713.h
index f98a0a7af61c..343b8fb50b93 100644
--- a/include/media/si4713.h
+++ b/include/media/si4713.h
@@ -26,6 +26,7 @@ struct si4713_platform_data {
const char * const *supply_names;
unsigned supplies;
int gpio_reset; /* < 0 if not used */
+ bool is_platform_device;
};
/*
--
cgit v1.2.1
From bf2b892e661213d4e94e2bff76dd13a23909228b Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@kernel.org>
Date: Mon, 10 Nov 2014 17:34:44 -0300
Subject: [media] si4713: cleanup platform data
Remove unreferenced members from the platform
data's structure.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/si4713.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/media/si4713.h b/include/media/si4713.h
index 343b8fb50b93..be4f58e2440b 100644
--- a/include/media/si4713.h
+++ b/include/media/si4713.h
@@ -23,9 +23,6 @@
* Platform dependent definition
*/
struct si4713_platform_data {
- const char * const *supply_names;
- unsigned supplies;
- int gpio_reset; /* < 0 if not used */
bool is_platform_device;
};
--
cgit v1.2.1
From a77f9c5dcdf8480a93332792c336fa2bf9d31229 Mon Sep 17 00:00:00 2001
From: Jay Vosburgh <jay.vosburgh@canonical.com>
Date: Fri, 14 Nov 2014 11:05:06 -0800
Subject: Revert "fast_hash: avoid indirect function calls"
This reverts commit e5a2c899957659cd1a9f789bc462f9c0b35f5150.
Commit e5a2c899 introduced an alternative_call, arch_fast_hash2,
that selects between __jhash2 and __intel_crc4_2_hash based on the
X86_FEATURE_XMM4_2.
Unfortunately, the alternative_call system does not appear to be
suitable for use with C functions, as register usage is not handled
properly for the called functions. The __jhash2 function in particular
clobbers registers that are not preserved when called via
alternative_call, resulting in a panic for direct callers of
arch_fast_hash2 on older CPUs lacking sse4_2. It is possible that
__intel_crc4_2_hash works merely by chance because it uses fewer
registers.
This commit was suggested as the source of the problem by Jesse
Gross <jesse@nicira.com>.
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/asm-generic/hash.h | 36 ++----------------------------------
include/linux/hash.h | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 36 insertions(+), 34 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/hash.h b/include/asm-generic/hash.h
index 3c82760ff2a4..b6312843dbd9 100644
--- a/include/asm-generic/hash.h
+++ b/include/asm-generic/hash.h
@@ -1,41 +1,9 @@
#ifndef __ASM_GENERIC_HASH_H
#define __ASM_GENERIC_HASH_H
-#include <linux/jhash.h>
-
-/**
- * arch_fast_hash - Caclulates a hash over a given buffer that can have
- * arbitrary size. This function will eventually use an
- * architecture-optimized hashing implementation if
- * available, and trades off distribution for speed.
- *
- * @data: buffer to hash
- * @len: length of buffer in bytes
- * @seed: start seed
- *
- * Returns 32bit hash.
- */
-static inline u32 arch_fast_hash(const void *data, u32 len, u32 seed)
-{
- return jhash(data, len, seed);
-}
-
-/**
- * arch_fast_hash2 - Caclulates a hash over a given buffer that has a
- * size that is of a multiple of 32bit words. This
- * function will eventually use an architecture-
- * optimized hashing implementation if available,
- * and trades off distribution for speed.
- *
- * @data: buffer to hash (must be 32bit padded)
- * @len: number of 32bit words
- * @seed: start seed
- *
- * Returns 32bit hash.
- */
-static inline u32 arch_fast_hash2(const u32 *data, u32 len, u32 seed)
+struct fast_hash_ops;
+static inline void setup_arch_fast_hash(struct fast_hash_ops *ops)
{
- return jhash2(data, len, seed);
}
#endif /* __ASM_GENERIC_HASH_H */
diff --git a/include/linux/hash.h b/include/linux/hash.h
index 6e8fb028848c..d0494c399392 100644
--- a/include/linux/hash.h
+++ b/include/linux/hash.h
@@ -84,4 +84,38 @@ static inline u32 hash32_ptr(const void *ptr)
return (u32)val;
}
+struct fast_hash_ops {
+ u32 (*hash)(const void *data, u32 len, u32 seed);
+ u32 (*hash2)(const u32 *data, u32 len, u32 seed);
+};
+
+/**
+ * arch_fast_hash - Caclulates a hash over a given buffer that can have
+ * arbitrary size. This function will eventually use an
+ * architecture-optimized hashing implementation if
+ * available, and trades off distribution for speed.
+ *
+ * @data: buffer to hash
+ * @len: length of buffer in bytes
+ * @seed: start seed
+ *
+ * Returns 32bit hash.
+ */
+extern u32 arch_fast_hash(const void *data, u32 len, u32 seed);
+
+/**
+ * arch_fast_hash2 - Caclulates a hash over a given buffer that has a
+ * size that is of a multiple of 32bit words. This
+ * function will eventually use an architecture-
+ * optimized hashing implementation if available,
+ * and trades off distribution for speed.
+ *
+ * @data: buffer to hash (must be 32bit padded)
+ * @len: number of 32bit words
+ * @seed: start seed
+ *
+ * Returns 32bit hash.
+ */
+extern u32 arch_fast_hash2(const u32 *data, u32 len, u32 seed);
+
#endif /* _LINUX_HASH_H */
--
cgit v1.2.1
From 84bc88688e3f6ef843aa8803dbcd90168bb89faf Mon Sep 17 00:00:00 2001
From: Vincent BENAYOUN <vincent.benayoun@trust-in-soft.com>
Date: Thu, 13 Nov 2014 13:47:26 +0100
Subject: inetdevice: fixed signed integer overflow
There could be a signed overflow in the following code.
The expression, (32-logmask) is comprised between 0 and 31 included.
It may be equal to 31.
In such a case the left shift will produce a signed integer overflow.
According to the C99 Standard, this is an undefined behavior.
A simple fix is to replace the signed int 1 with the unsigned int 1U.
Signed-off-by: Vincent BENAYOUN <vincent.benayoun@trust-in-soft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/inetdevice.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 0068708161ff..0a21fbefdfbe 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -242,7 +242,7 @@ static inline void in_dev_put(struct in_device *idev)
static __inline__ __be32 inet_make_mask(int logmask)
{
if (logmask)
- return htonl(~((1<<(32-logmask))-1));
+ return htonl(~((1U<<(32-logmask))-1));
return 0;
}
--
cgit v1.2.1
From 23e62de33d179e229e4c1dfd93f90a3c7355c519 Mon Sep 17 00:00:00 2001
From: Joe Stringer <joestringer@nicira.com>
Date: Thu, 13 Nov 2014 16:38:12 -0800
Subject: net: Add vxlan_gso_check() helper
Most NICs that report NETIF_F_GSO_UDP_TUNNEL support VXLAN, and not
other UDP-based encapsulation protocols where the format and size of the
header differs. This patch implements a generic ndo_gso_check() for
VXLAN which will only advertise GSO support when the skb looks like it
contains VXLAN (or no UDP tunnelling at all).
Implementation shamelessly stolen from Tom Herbert:
http://thread.gmane.org/gmane.linux.network/332428/focus=333111
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/vxlan.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index d5f59f3fc35d..afadf8e53f20 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -45,6 +45,8 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
__be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
__be16 src_port, __be16 dst_port, __be32 vni, bool xnet);
+bool vxlan_gso_check(struct sk_buff *skb);
+
/* IP header + UDP + VXLAN + Ethernet header */
#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
/* IPv6 header + UDP + VXLAN + Ethernet header */
--
cgit v1.2.1
From acd899e4f3066b6662f6047da5b795cc762093cb Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Mon, 22 Sep 2014 08:21:04 -0700
Subject: leds: implement sysfs interface locking mechanism
Add a mechanism for locking LED subsystem sysfs interface.
This patch prepares ground for addition of LED Flash Class
extension, whose API will be integrated with V4L2 Flash API.
Such a fusion enforces introducing a locking scheme, which
will secure consistent access to the LED Flash Class device.
The mechanism being introduced allows for disabling LED
subsystem sysfs interface by calling led_sysfs_disable function
and enabling it by calling led_sysfs_enable. The functions
alter the LED_SYSFS_DISABLE flag state and must be called
under mutex lock. The state of the lock is checked with use
of led_sysfs_is_disabled function. Such a design allows for
providing immediate feedback to the user space on whether
the LED Flash Class device is available or is under V4L2 Flash
sub-device control.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
include/linux/leds.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
(limited to 'include')
diff --git a/include/linux/leds.h b/include/linux/leds.h
index a57611d0c94e..737f9b1051f2 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -13,6 +13,7 @@
#define __LINUX_LEDS_H_INCLUDED
#include <linux/list.h>
+#include <linux/mutex.h>
#include <linux/rwsem.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
@@ -42,6 +43,7 @@ struct led_classdev {
#define LED_BLINK_ONESHOT (1 << 17)
#define LED_BLINK_ONESHOT_STOP (1 << 18)
#define LED_BLINK_INVERT (1 << 19)
+#define LED_SYSFS_DISABLE (1 << 20)
/* Set LED brightness level */
/* Must not sleep, use a workqueue if needed */
@@ -85,6 +87,9 @@ struct led_classdev {
/* true if activated - deactivate routine uses it to do cleanup */
bool activated;
#endif
+
+ /* Ensures consistent access to the LED Flash Class device */
+ struct mutex led_access;
};
extern int led_classdev_register(struct device *parent,
@@ -151,6 +156,33 @@ extern void led_set_brightness(struct led_classdev *led_cdev,
*/
extern int led_update_brightness(struct led_classdev *led_cdev);
+/**
+ * led_sysfs_disable - disable LED sysfs interface
+ * @led_cdev: the LED to set
+ *
+ * Disable the led_cdev's sysfs interface.
+ */
+extern void led_sysfs_disable(struct led_classdev *led_cdev);
+
+/**
+ * led_sysfs_enable - enable LED sysfs interface
+ * @led_cdev: the LED to set
+ *
+ * Enable the led_cdev's sysfs interface.
+ */
+extern void led_sysfs_enable(struct led_classdev *led_cdev);
+
+/**
+ * led_sysfs_is_disabled - check if LED sysfs interface is disabled
+ * @led_cdev: the LED to query
+ *
+ * Returns: true if the led_cdev's sysfs interface is disabled.
+ */
+static inline bool led_sysfs_is_disabled(struct led_classdev *led_cdev)
+{
+ return led_cdev->flags & LED_SYSFS_DISABLE;
+}
+
/*
* LED Triggers
*/
--
cgit v1.2.1
From 4d71a4a12b130ad033219e6f58c74a64059415eb Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Fri, 14 Nov 2014 02:50:18 -0800
Subject: leds: Add support for setting brightness in a synchronous way
There are use cases when setting a LED brightness has to
have immediate effect (e.g. setting a torch LED brightness).
This patch extends LED subsystem to support such operations.
The LED subsystem internal API __led_set_brightness is changed
to led_set_brightness_async and new led_set_brightness_sync API
is added.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
include/linux/leds.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 737f9b1051f2..dfe70e928eae 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -44,11 +44,19 @@ struct led_classdev {
#define LED_BLINK_ONESHOT_STOP (1 << 18)
#define LED_BLINK_INVERT (1 << 19)
#define LED_SYSFS_DISABLE (1 << 20)
+#define SET_BRIGHTNESS_ASYNC (1 << 21)
+#define SET_BRIGHTNESS_SYNC (1 << 22)
/* Set LED brightness level */
/* Must not sleep, use a workqueue if needed */
void (*brightness_set)(struct led_classdev *led_cdev,
enum led_brightness brightness);
+ /*
+ * Set LED brightness level immediately - it can block the caller for
+ * the time required for accessing a LED device register.
+ */
+ int (*brightness_set_sync)(struct led_classdev *led_cdev,
+ enum led_brightness brightness);
/* Get LED brightness level */
enum led_brightness (*brightness_get)(struct led_classdev *led_cdev);
--
cgit v1.2.1
From 8bd4ae202813ac04f35dacf43263e1cf96743292 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Fri, 14 Nov 2014 19:30:29 +0100
Subject: drm: rework flip-work helpers to avoid calling func when the FIFO is
full
Make use of lists instead of kfifo in order to dynamically allocate
task entry when someone require some delayed work, and thus preventing
drm_flip_work_queue from directly calling func instead of queuing this
call.
This allow drm_flip_work_queue to be safely called even within irq
handlers.
Add new helper functions to allocate a flip work task and queue it when
needed. This prevents allocating data within irq context (which might
impact the time spent in the irq handler).
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_flip_work.h | 31 +++++++++++++++++++++++--------
1 file changed, 23 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_flip_work.h b/include/drm/drm_flip_work.h
index 9eed34dcd6af..3fcb4c44c9e0 100644
--- a/include/drm/drm_flip_work.h
+++ b/include/drm/drm_flip_work.h
@@ -25,6 +25,7 @@
#define DRM_FLIP_WORK_H
#include <linux/kfifo.h>
+#include <linux/spinlock.h>
#include <linux/workqueue.h>
/**
@@ -32,9 +33,9 @@
*
* Util to queue up work to run from work-queue context after flip/vblank.
* Typically this can be used to defer unref of framebuffer's, cursor
- * bo's, etc until after vblank. The APIs are all safe (and lockless)
- * for up to one producer and once consumer at a time. The single-consumer
- * aspect is ensured by committing the queued work to a single work-queue.
+ * bo's, etc until after vblank. The APIs are all thread-safe.
+ * Moreover, drm_flip_work_queue_task and drm_flip_work_queue can be called
+ * in atomic context.
*/
struct drm_flip_work;
@@ -50,23 +51,37 @@ struct drm_flip_work;
*/
typedef void (*drm_flip_func_t)(struct drm_flip_work *work, void *val);
+/**
+ * struct drm_flip_task - flip work task
+ * @node: list entry element
+ * @data: data to pass to work->func
+ */
+struct drm_flip_task {
+ struct list_head node;
+ void *data;
+};
+
/**
* struct drm_flip_work - flip work queue
* @name: debug name
- * @pending: number of queued but not committed items
- * @count: number of committed items
* @func: callback fxn called for each committed item
* @worker: worker which calls @func
- * @fifo: queue of committed items
+ * @queued: queued tasks
+ * @commited: commited tasks
+ * @lock: lock to access queued and commited lists
*/
struct drm_flip_work {
const char *name;
- atomic_t pending, count;
drm_flip_func_t func;
struct work_struct worker;
- DECLARE_KFIFO_PTR(fifo, void *);
+ struct list_head queued;
+ struct list_head commited;
+ spinlock_t lock;
};
+struct drm_flip_task *drm_flip_work_allocate_task(void *data, gfp_t flags);
+void drm_flip_work_queue_task(struct drm_flip_work *work,
+ struct drm_flip_task *task);
void drm_flip_work_queue(struct drm_flip_work *work, void *val);
void drm_flip_work_commit(struct drm_flip_work *work,
struct workqueue_struct *wq);
--
cgit v1.2.1
From d7f8db5300d1f50b5631796086dbd4efc5b5d707 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Fri, 14 Nov 2014 19:30:30 +0100
Subject: drm: flip-work: change drm_flip_work_init prototype
Now that we're using lists instead of kfifo to store drm flip-work tasks
we do not need the size parameter passed to drm_flip_work_init function
anymore.
Moreover this function cannot fail anymore, we can thus remove the return
code.
Modify drm_flip_work_init users to take account of these changes.
[airlied: fixed two unused variable warnings]
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_flip_work.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_flip_work.h b/include/drm/drm_flip_work.h
index 3fcb4c44c9e0..d387cf06ae05 100644
--- a/include/drm/drm_flip_work.h
+++ b/include/drm/drm_flip_work.h
@@ -85,7 +85,7 @@ void drm_flip_work_queue_task(struct drm_flip_work *work,
void drm_flip_work_queue(struct drm_flip_work *work, void *val);
void drm_flip_work_commit(struct drm_flip_work *work,
struct workqueue_struct *wq);
-int drm_flip_work_init(struct drm_flip_work *work, int size,
+void drm_flip_work_init(struct drm_flip_work *work,
const char *name, drm_flip_func_t func);
void drm_flip_work_cleanup(struct drm_flip_work *work);
--
cgit v1.2.1
From 5bb2bbf596a0ca35b8ba2b0d5b734a1f270040ff Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 10 Nov 2014 10:18:15 +1000
Subject: drm: add properties for suggested x/y offset for connectors. (v2)
Virtual GPUs would like to give the guest some indication where on the screen
the outputs are layed out. So far we only provide modes, these
properties could be exposed to userspace so the desktop environment
could use them as hints to set the correct offsets.
v2: rename properties to be more consistent.
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_crtc.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index c95941076aaf..7b28ab032a88 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1038,6 +1038,10 @@ struct drm_mode_config {
struct drm_property *aspect_ratio_property;
struct drm_property *dirty_info_property;
+ /* properties for virtual machine layout */
+ struct drm_property *suggested_x_property;
+ struct drm_property *suggested_y_property;
+
/* dumb ioctl parameters */
uint32_t preferred_depth, prefer_shadow;
@@ -1231,6 +1235,7 @@ extern int drm_mode_create_tv_properties(struct drm_device *dev,
extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
+extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder);
--
cgit v1.2.1
From 970d0f1b280372cfd46b6de5529d96f8448de943 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 13 Nov 2014 14:37:47 +0200
Subject: Bluetooth: Convert LTK list to RCU
This patch set converts the hdev->long_term_keys list to use RCU to
eliminate the need to use hci_dev_lock/unlock.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 4e39a5adfcab..a4adef22ad7c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -108,6 +108,7 @@ struct smp_csrk {
struct smp_ltk {
struct list_head list;
+ struct rcu_head rcu;
bdaddr_t bdaddr;
u8 bdaddr_type;
u8 authenticated;
--
cgit v1.2.1
From adae20cb2d20e5151b866945f802b0c2312f0f82 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 13 Nov 2014 14:37:48 +0200
Subject: Bluetooth: Convert IRK list to RCU
This patch set converts the hdev->identity_resolving_keys list to use
RCU to eliminate the need to use hci_dev_lock/unlock.
An additional change that must be done is to remove use of
CRYPTO_ALG_ASYNC for the hdev-specific AES crypto context. The reason is
that this context is used for matching RPAs and the loop that does the
matching is under the RCU read lock, i.e. is an atomic section which
cannot sleep.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index a4adef22ad7c..fe2d5f299e12 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -121,6 +121,7 @@ struct smp_ltk {
struct smp_irk {
struct list_head list;
+ struct rcu_head rcu;
bdaddr_t rpa;
bdaddr_t bdaddr;
u8 addr_type;
--
cgit v1.2.1
From ccf54555da9a5e91e454b909ca6a5303c7d6b910 Mon Sep 17 00:00:00 2001
From: Cristina Ciocan <cristina.ciocan@intel.com>
Date: Tue, 11 Nov 2014 16:07:42 +0200
Subject: iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask
The direction field is set on 7 bits, thus we need to AND it with 0111 111 mask
in order to retrieve it, that is 0x7F, not 0xCF as it is now.
Fixes: ade7ef7ba (staging:iio: Differential channel handling)
Signed-off-by: Cristina Ciocan <cristina.ciocan@intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
include/linux/iio/events.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/iio/events.h b/include/linux/iio/events.h
index 8bbd7bc1043d..03fa332ad2a8 100644
--- a/include/linux/iio/events.h
+++ b/include/linux/iio/events.h
@@ -72,7 +72,7 @@ struct iio_event_data {
#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
-#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xCF)
+#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)
#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
--
cgit v1.2.1
From 00b4d9a14125f1e51874def2b9de6092e007412d Mon Sep 17 00:00:00 2001
From: Maxime COQUELIN <maxime.coquelin@st.com>
Date: Thu, 6 Nov 2014 10:54:19 +0100
Subject: bitops: Fix shift overflow in GENMASK macros
On some 32 bits architectures, including x86, GENMASK(31, 0) returns 0
instead of the expected ~0UL.
This is the same on some 64 bits architectures with GENMASK_ULL(63, 0).
This is due to an overflow in the shift operand, 1 << 32 for GENMASK,
1 << 64 for GENMASK_ULL.
Reported-by: Eric Paire <eric.paire@st.com>
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <stable@vger.kernel.org> # v3.13+
Cc: linux@rasmusvillemoes.dk
Cc: gong.chen@linux.intel.com
Cc: John Sullivan <jsrhbz@kanargh.force9.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Fixes: 10ef6b0dffe4 ("bitops: Introduce a more generic BITMASK macro")
Link: http://lkml.kernel.org/r/1415267659-10563-1-git-send-email-maxime.coquelin@st.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/bitops.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index be5fd38bd5a0..5d858e02997f 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -18,8 +18,11 @@
* position @h. For example
* GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000.
*/
-#define GENMASK(h, l) (((U32_C(1) << ((h) - (l) + 1)) - 1) << (l))
-#define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l))
+#define GENMASK(h, l) \
+ (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
+
+#define GENMASK_ULL(h, l) \
+ (((~0ULL) << (l)) & (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h))))
extern unsigned int __sw_hweight8(unsigned int w);
extern unsigned int __sw_hweight16(unsigned int w);
--
cgit v1.2.1
From 23cfa361f3e54a3e184a5e126bbbdd95f984881a Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 12 Nov 2014 12:37:37 +0100
Subject: sched/cputime: Fix cpu_timer_sample_group() double accounting
While looking over the cpu-timer code I found that we appear to add
the delta for the calling task twice, through:
cpu_timer_sample_group()
thread_group_cputimer()
thread_group_cputime()
times->sum_exec_runtime += task_sched_runtime();
*sample = cputime.sum_exec_runtime + task_delta_exec();
Which would make the sample run ahead, making the sleep short.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/20141112113737.GI10476@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/kernel_stat.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 8422b4ed6882..b9376cd5a187 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -77,11 +77,6 @@ static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
return kstat_cpu(cpu).irqs_sum;
}
-/*
- * Lock/unlock the current runqueue - to extract task statistics:
- */
-extern unsigned long long task_delta_exec(struct task_struct *);
-
extern void account_user_time(struct task_struct *, cputime_t, cputime_t);
extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t);
extern void account_steal_time(cputime_t);
--
cgit v1.2.1
From f622b429dadf83c3cc2d70f57f407ad85684eb36 Mon Sep 17 00:00:00 2001
From: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Date: Tue, 4 Nov 2014 16:51:22 +0800
Subject: sched: Update comments about CLONE_NEWUTS and CLONE_NEWIPC
Remove question mark:
s/New utsname group?/New utsname namespace
Unified style for IPC:
s/New ipcs/New ipc namespace
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/1415091082-15093-1-git-send-email-chenhanxiao@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/uapi/linux/sched.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h
index b932be9f5c5b..cc89ddefa926 100644
--- a/include/uapi/linux/sched.h
+++ b/include/uapi/linux/sched.h
@@ -23,8 +23,8 @@
#define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */
/* 0x02000000 was previously the unused CLONE_STOPPED (Start in stopped state)
and is now available for re-use. */
-#define CLONE_NEWUTS 0x04000000 /* New utsname group? */
-#define CLONE_NEWIPC 0x08000000 /* New ipcs */
+#define CLONE_NEWUTS 0x04000000 /* New utsname namespace */
+#define CLONE_NEWIPC 0x08000000 /* New ipc namespace */
#define CLONE_NEWUSER 0x10000000 /* New user namespace */
#define CLONE_NEWPID 0x20000000 /* New pid namespace */
#define CLONE_NEWNET 0x40000000 /* New network namespace */
--
cgit v1.2.1
From d8b163c4c657478ef33c082cff78d03a4ca07bb2 Mon Sep 17 00:00:00 2001
From: Kirill Tkhai <ktkhai@parallels.com>
Date: Tue, 11 Nov 2014 12:46:29 +0300
Subject: sched/numa: Init numa balancing fields of init_task
We do not initialize init_task.numa_preferred_nid,
but this value is inherited by userspace "init"
process:
rest_init()->kernel_thread(kernel_init)->do_fork(CLONE_VM);
__sched_fork()
{
if (clone_flags & CLONE_VM)
p->numa_preferred_nid = current->numa_preferred_nid;
else
p->numa_preferred_nid = -1;
}
kernel_init() becomes userspace "init" process.
So, we propagate garbage nid to userspace, and it may be used
during numa balancing.
Currently, we do not have reports about this brings a problem,
but it seem we should set it for sure.
Even if init_task.numa_preferred_nid is zero, we may meet a weird
configuration without nid#0. On sparc64, where processors are
numbered physically, I saw a machine without cpu#1, while cpu#2
existed. Possible, something similar may be with numa nodes.
So, let's initialize it and be sure we're safe.
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Sergey Dyasly <dserrg@gmail.com>
Link: http://lkml.kernel.org/r/1415699189.15631.6.camel@tkhai
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/init_task.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 77fc43f8fb72..5f30ac8c82bc 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -166,6 +166,15 @@ extern struct task_group root_task_group;
# define INIT_RT_MUTEXES(tsk)
#endif
+#ifdef CONFIG_NUMA_BALANCING
+# define INIT_NUMA_BALANCING(tsk) \
+ .numa_preferred_nid = -1, \
+ .numa_group = NULL, \
+ .numa_faults = NULL,
+#else
+# define INIT_NUMA_BALANCING(tsk)
+#endif
+
/*
* INIT_TASK is used to set up the first task table, touch at
* your own risk!. Base=0, limit=0x1fffff (=2MB)
@@ -237,6 +246,7 @@ extern struct task_group root_task_group;
INIT_CPUSET_SEQ(tsk) \
INIT_RT_MUTEXES(tsk) \
INIT_VTIME(tsk) \
+ INIT_NUMA_BALANCING(tsk) \
}
--
cgit v1.2.1
From 60e2364e60e86e81bc6377f49779779e6120977f Mon Sep 17 00:00:00 2001
From: Stephane Eranian <eranian@google.com>
Date: Wed, 24 Sep 2014 13:48:37 +0200
Subject: perf: Add ability to sample machine state on interrupt
Enable capture of interrupted machine state for each sample.
Registers to sample are passed per event in the sample_regs_intr bitmask.
To sample interrupt machine state, the PERF_SAMPLE_INTR_REGS must be passed in
sample_type.
The list of available registers is arch dependent and provided by asm/perf_regs.h
Registers are laid out as u64 in the order of the bit order of sample_intr_regs.
This patch also adds a new ABI version PERF_ATTR_SIZE_VER4 because we extend
the perf_event_attr struct with a new u64 field.
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: cebbert.lkml@gmail.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/1411559322-16548-2-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/perf_event.h | 7 +++++--
include/uapi/linux/perf_event.h | 15 ++++++++++++++-
2 files changed, 19 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 893a0d07986f..68d46d536e24 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -79,7 +79,7 @@ struct perf_branch_stack {
struct perf_branch_entry entries[0];
};
-struct perf_regs_user {
+struct perf_regs {
__u64 abi;
struct pt_regs *regs;
};
@@ -600,7 +600,8 @@ struct perf_sample_data {
struct perf_callchain_entry *callchain;
struct perf_raw_record *raw;
struct perf_branch_stack *br_stack;
- struct perf_regs_user regs_user;
+ struct perf_regs regs_user;
+ struct perf_regs regs_intr;
u64 stack_user_size;
u64 weight;
/*
@@ -630,6 +631,8 @@ static inline void perf_sample_data_init(struct perf_sample_data *data,
data->weight = 0;
data->data_src.val = PERF_MEM_NA;
data->txn = 0;
+ data->regs_intr.abi = PERF_SAMPLE_REGS_ABI_NONE;
+ data->regs_intr.regs = NULL;
}
extern void perf_output_sample(struct perf_output_handle *handle,
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 9d845404d875..9b79abbd1ab8 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -137,8 +137,9 @@ enum perf_event_sample_format {
PERF_SAMPLE_DATA_SRC = 1U << 15,
PERF_SAMPLE_IDENTIFIER = 1U << 16,
PERF_SAMPLE_TRANSACTION = 1U << 17,
+ PERF_SAMPLE_REGS_INTR = 1U << 18,
- PERF_SAMPLE_MAX = 1U << 18, /* non-ABI */
+ PERF_SAMPLE_MAX = 1U << 19, /* non-ABI */
};
/*
@@ -238,6 +239,7 @@ enum perf_event_read_format {
#define PERF_ATTR_SIZE_VER2 80 /* add: branch_sample_type */
#define PERF_ATTR_SIZE_VER3 96 /* add: sample_regs_user */
/* add: sample_stack_user */
+#define PERF_ATTR_SIZE_VER4 104 /* add: sample_regs_intr */
/*
* Hardware event_id to monitor via a performance monitoring event:
@@ -334,6 +336,15 @@ struct perf_event_attr {
/* Align to u64. */
__u32 __reserved_2;
+ /*
+ * Defines set of regs to dump for each sample
+ * state captured on:
+ * - precise = 0: PMU interrupt
+ * - precise > 0: sampled instruction
+ *
+ * See asm/perf_regs.h for details.
+ */
+ __u64 sample_regs_intr;
};
#define perf_flags(attr) (*(&(attr)->read_format + 1))
@@ -686,6 +697,8 @@ enum perf_event_type {
* { u64 weight; } && PERF_SAMPLE_WEIGHT
* { u64 data_src; } && PERF_SAMPLE_DATA_SRC
* { u64 transaction; } && PERF_SAMPLE_TRANSACTION
+ * { u64 abi; # enum perf_sample_regs_abi
+ * u64 regs[weight(mask)]; } && PERF_SAMPLE_REGS_INTR
* };
*/
PERF_RECORD_SAMPLE = 9,
--
cgit v1.2.1
From 2565711fb7d7c28e0cd93c8971b520d1b10b857c Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 24 Sep 2014 13:48:42 +0200
Subject: perf: Improve the perf_sample_data struct layout
This patch reorders fields in the perf_sample_data struct in order to
minimize the number of cachelines touched in perf_sample_data_init().
It also removes some intializations which are redundant with the code
in kernel/events/core.c
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1411559322-16548-7-git-send-email-eranian@google.com
Cc: cebbert.lkml@gmail.com
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: jolsa@redhat.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/perf_event.h | 34 +++++++++++++++++-----------------
1 file changed, 17 insertions(+), 17 deletions(-)
(limited to 'include')
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 68d46d536e24..486e84ccb1f9 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -580,35 +580,40 @@ extern u64 perf_event_read_value(struct perf_event *event,
struct perf_sample_data {
- u64 type;
+ /*
+ * Fields set by perf_sample_data_init(), group so as to
+ * minimize the cachelines touched.
+ */
+ u64 addr;
+ struct perf_raw_record *raw;
+ struct perf_branch_stack *br_stack;
+ u64 period;
+ u64 weight;
+ u64 txn;
+ union perf_mem_data_src data_src;
+ /*
+ * The other fields, optionally {set,used} by
+ * perf_{prepare,output}_sample().
+ */
+ u64 type;
u64 ip;
struct {
u32 pid;
u32 tid;
} tid_entry;
u64 time;
- u64 addr;
u64 id;
u64 stream_id;
struct {
u32 cpu;
u32 reserved;
} cpu_entry;
- u64 period;
- union perf_mem_data_src data_src;
struct perf_callchain_entry *callchain;
- struct perf_raw_record *raw;
- struct perf_branch_stack *br_stack;
struct perf_regs regs_user;
struct perf_regs regs_intr;
u64 stack_user_size;
- u64 weight;
- /*
- * Transaction flags for abort events:
- */
- u64 txn;
-};
+} ____cacheline_aligned;
/* default value for data source */
#define PERF_MEM_NA (PERF_MEM_S(OP, NA) |\
@@ -625,14 +630,9 @@ static inline void perf_sample_data_init(struct perf_sample_data *data,
data->raw = NULL;
data->br_stack = NULL;
data->period = period;
- data->regs_user.abi = PERF_SAMPLE_REGS_ABI_NONE;
- data->regs_user.regs = NULL;
- data->stack_user_size = 0;
data->weight = 0;
data->data_src.val = PERF_MEM_NA;
data->txn = 0;
- data->regs_intr.abi = PERF_SAMPLE_REGS_ABI_NONE;
- data->regs_intr.regs = NULL;
}
extern void perf_output_sample(struct perf_output_handle *handle,
--
cgit v1.2.1
From 960fb622f85180f36d3aff82af53e2be3db2f888 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 16 Nov 2014 06:23:05 -0800
Subject: net: provide a per host RSS key generic infrastructure
RSS (Receive Side Scaling) typically uses Toeplitz hash and a 40 or 52 bytes
RSS key.
Some drivers use a constant (and well known key), some drivers use a random
key per port, making bonding setups hard to tune. Well known keys increase
attack surface, considering that number of queues is usually a power of two.
This patch provides infrastructure to help drivers doing the right thing.
netdev_rss_key_fill() should be used by drivers to initialize their RSS key,
even if they provide ethtool -X support to let user redefine the key later.
A new /proc/sys/net/core/netdev_rss_key file can be used to get the host
RSS key even for drivers not providing ethtool -x support, in case some
applications want to precisely setup flows to match some RX queues.
Tested:
myhost:~# cat /proc/sys/net/core/netdev_rss_key
11:63:99:bb:79:fb:a5:a7:07:45:b2:20:bf:02:42:2d:08:1a:dd:19:2b:6b:23:ac:56:28:9d:70:c3:ac:e8:16:4b:b7:c1:10:53:a4:78:41:36:40:74:b6:15:ca:27:44:aa:b3:4d:72
myhost:~# ethtool -x eth0
RX flow hash indirection table for eth0 with 8 RX ring(s):
0: 0 1 2 3 4 5 6 7
RSS hash key:
11:63:99:bb:79:fb:a5:a7:07:45:b2:20:bf:02:42:2d:08:1a:dd:19:2b:6b:23:ac:56:28:9d:70:c3:ac:e8:16:4b:b7:c1:10:53:a4:78:41
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 4a6f770377d3..db63cf459ba1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3422,6 +3422,12 @@ void netdev_upper_dev_unlink(struct net_device *dev,
void netdev_adjacent_rename_links(struct net_device *dev, char *oldname);
void *netdev_lower_dev_get_private(struct net_device *dev,
struct net_device *lower_dev);
+
+/* RSS keys are 40 or 52 bytes long */
+#define NETDEV_RSS_KEY_LEN 52
+extern u8 netdev_rss_key[NETDEV_RSS_KEY_LEN];
+void netdev_rss_key_fill(void *buffer, size_t len);
+
int dev_get_nest_level(struct net_device *dev,
bool (*type_check)(struct net_device *dev));
int skb_checksum_help(struct sk_buff *skb);
--
cgit v1.2.1
From b9d1ab7eb42ede51ffbb6cafffd0a521b30c12e1 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 16 Nov 2014 06:23:16 -0800
Subject: mlx4: use netdev_rss_key_fill() helper
Use of well known RSS key increases attack surface.
Switch to a random one, using generic helper so that all
ports share a common key.
Also provide ethtool -x support to fetch RSS key
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/qp.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 5f4e36cf0091..467ccdf94c98 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -120,13 +120,15 @@ enum {
MLX4_RSS_QPC_FLAG_OFFSET = 13,
};
+#define MLX4_EN_RSS_KEY_SIZE 40
+
struct mlx4_rss_context {
__be32 base_qpn;
__be32 default_qpn;
u16 reserved;
u8 hash_fn;
u8 flags;
- __be32 rss_key[10];
+ __be32 rss_key[MLX4_EN_RSS_KEY_SIZE / sizeof(__be32)];
__be32 base_qpn_udp;
};
--
cgit v1.2.1
From 29aebfde8802b64a5b505a1d8a6842c188abfdbc Mon Sep 17 00:00:00 2001
From: Nicolin Chen <nicoleotsuka@gmail.com>
Date: Fri, 24 Oct 2014 12:37:41 -0700
Subject: dmaengine: imx-sdma: Add a new DMATYPE for SAI
This patch simply adds a new DMATYPE for SAI which's included
in i.MX6 Solo X.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/platform_data/dma-imx.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h
index 6a1357d31871..7d964e787299 100644
--- a/include/linux/platform_data/dma-imx.h
+++ b/include/linux/platform_data/dma-imx.h
@@ -41,6 +41,7 @@ enum sdma_peripheral_type {
IMX_DMATYPE_ESAI, /* ESAI */
IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */
IMX_DMATYPE_ASRC_SP, /* Shared ASRC */
+ IMX_DMATYPE_SAI, /* SAI */
};
enum imx_dma_prio {
--
cgit v1.2.1
From f3ea5e44231a88eaea69a13410d1b80c19cfa1df Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 17 Nov 2014 08:20:51 +0100
Subject: ieee802154: add new interface command
This patch adds a new nl802154 command for adding a new interface
according to a wpan phy via nl802154.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 17b4fc0705b2..24c7321f3647 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -21,6 +21,8 @@
#include <linux/mutex.h>
#include <linux/bug.h>
+#include <net/nl802154.h>
+
/* According to the IEEE 802.15.4 stadard the upper most significant bits of
* the 32-bit channel bitmaps shall be used as an integer value to specify 32
* possible channel pages. The lower 27 bits of the channel bit map shall be
@@ -37,6 +39,9 @@ struct cfg802154_ops {
int type);
void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
struct net_device *dev);
+ int (*add_virtual_intf)(struct wpan_phy *wpan_phy,
+ const char *name,
+ enum nl802154_iftype type);
int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
int (*set_pan_id)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev, u16 pan_id);
--
cgit v1.2.1
From 0e57547eb7f0aa99aba32b50c49dbd722a80d6fb Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 17 Nov 2014 08:20:52 +0100
Subject: ieee802154: setting extended address while iface add
This patch adds support for setting an extended address while
registration a new interface. If ieee802154_is_valid_extended_addr
getting as parameter and invalid extended address then the perm address
is fallback. This is useful to make some default handling while for
example default registration of a wpan interface while phy registration.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 24c7321f3647..4a9bb0e3db2b 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -41,7 +41,8 @@ struct cfg802154_ops {
struct net_device *dev);
int (*add_virtual_intf)(struct wpan_phy *wpan_phy,
const char *name,
- enum nl802154_iftype type);
+ enum nl802154_iftype type,
+ __le64 extended_addr);
int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
int (*set_pan_id)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev, u16 pan_id);
--
cgit v1.2.1
From b821ecd4c8a0b3b1fc1bdd191bb7d555d818cafe Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 17 Nov 2014 08:20:53 +0100
Subject: ieee802154: add del interface command
This patch adds support for deleting a wpan interface via nl802154.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 4a9bb0e3db2b..507ac9d3d38a 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -43,6 +43,8 @@ struct cfg802154_ops {
const char *name,
enum nl802154_iftype type,
__le64 extended_addr);
+ int (*del_virtual_intf)(struct wpan_phy *wpan_phy,
+ struct wpan_dev *wpan_dev);
int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
int (*set_pan_id)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev, u16 pan_id);
--
cgit v1.2.1
From cb41c8dd01d74d091618f72e28f0282f064a9f0a Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 17 Nov 2014 08:20:54 +0100
Subject: ieee802154: rename and move WPAN_NUM_ defines
This patch moves the 802.15.4 constraints WPAN_NUM_ defines into
"net/ieee802154.h" which should contain all necessary 802.15.4 related
information. Also rename these defines to a common name which is
IEEE802154_MAX_CHANNEL and IEEE802154_MAX_PAGE.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/linux/ieee802154.h | 3 +++
include/net/cfg802154.h | 11 ++---------
2 files changed, 5 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index 5a40c0418438..6e82d888287c 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -39,6 +39,9 @@
#define IEEE802154_LIFS_PERIOD 40
#define IEEE802154_SIFS_PERIOD 12
+#define IEEE802154_MAX_CHANNEL 26
+#define IEEE802154_MAX_PAGE 31
+
#define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */
#define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */
#define IEEE802154_FC_TYPE_ACK 0x2 /* Frame is acknowledgment */
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 507ac9d3d38a..228f1f7668f7 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -17,20 +17,13 @@
#ifndef __NET_CFG802154_H
#define __NET_CFG802154_H
+#include <linux/ieee802154.h>
#include <linux/netdevice.h>
#include <linux/mutex.h>
#include <linux/bug.h>
#include <net/nl802154.h>
-/* According to the IEEE 802.15.4 stadard the upper most significant bits of
- * the 32-bit channel bitmaps shall be used as an integer value to specify 32
- * possible channel pages. The lower 27 bits of the channel bit map shall be
- * used as a bit mask to specify channel numbers within a channel page.
- */
-#define WPAN_NUM_CHANNELS 27
-#define WPAN_NUM_PAGES 32
-
struct wpan_phy;
struct cfg802154_ops {
@@ -81,7 +74,7 @@ struct wpan_phy {
*/
u8 current_channel;
u8 current_page;
- u32 channels_supported[32];
+ u32 channels_supported[IEEE802154_MAX_PAGE + 1];
s8 transmit_power;
u8 cca_mode;
--
cgit v1.2.1
From ee7b9053bd69ff43cbc87a9bb987f4d92dc2c29f Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 17 Nov 2014 08:20:55 +0100
Subject: ieee802154: fix byteorder for short address and panid
This patch changes the byteorder handling for short and panid handling.
We now except to get little endian in nl802154 for these attributes.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/cfg802154.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 228f1f7668f7..7f713acfa106 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -40,9 +40,9 @@ struct cfg802154_ops {
struct wpan_dev *wpan_dev);
int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
int (*set_pan_id)(struct wpan_phy *wpan_phy,
- struct wpan_dev *wpan_dev, u16 pan_id);
+ struct wpan_dev *wpan_dev, __le16 pan_id);
int (*set_short_addr)(struct wpan_phy *wpan_phy,
- struct wpan_dev *wpan_dev, u16 short_addr);
+ struct wpan_dev *wpan_dev, __le16 short_addr);
int (*set_backoff_exponent)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev, u8 min_be,
u8 max_be);
--
cgit v1.2.1
From fb7332a9fedfd62b1ba6530c86f39f0fa38afd49 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 29 Oct 2014 10:03:09 +0000
Subject: mmu_gather: move minimal range calculations into generic code
On architectures with hardware broadcasting of TLB invalidation messages
, it makes sense to reduce the range of the mmu_gather structure when
unmapping page ranges based on the dirty address information passed to
tlb_remove_tlb_entry.
arm64 already does this by directly manipulating the start/end fields
of the gather structure, but this confuses the generic code which
does not expect these fields to change and can end up calculating
invalid, negative ranges when forcing a flush in zap_pte_range.
This patch moves the minimal range calculation out of the arm64 code
and into the generic implementation, simplifying zap_pte_range in the
process (which no longer needs to care about start/end, since they will
point to the appropriate ranges already). With the range being tracked
by core code, the need_flush flag is dropped in favour of checking that
the end of the range has actually been set.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Michal Simek <monstr@monstr.eu>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/asm-generic/tlb.h | 57 ++++++++++++++++++++++++++++++++++++++---------
1 file changed, 47 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index 5672d7ea1fa0..08848050922e 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -96,10 +96,9 @@ struct mmu_gather {
#endif
unsigned long start;
unsigned long end;
- unsigned int need_flush : 1, /* Did free PTEs */
/* we are in the middle of an operation to clear
* a full mm and can make some optimizations */
- fullmm : 1,
+ unsigned int fullmm : 1,
/* we have performed an operation which
* requires a complete flush of the tlb */
need_flush_all : 1;
@@ -128,16 +127,54 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page)
tlb_flush_mmu(tlb);
}
+static inline void __tlb_adjust_range(struct mmu_gather *tlb,
+ unsigned long address)
+{
+ tlb->start = min(tlb->start, address);
+ tlb->end = max(tlb->end, address + PAGE_SIZE);
+}
+
+static inline void __tlb_reset_range(struct mmu_gather *tlb)
+{
+ tlb->start = TASK_SIZE;
+ tlb->end = 0;
+}
+
+/*
+ * In the case of tlb vma handling, we can optimise these away in the
+ * case where we're doing a full MM flush. When we're doing a munmap,
+ * the vmas are adjusted to only cover the region to be torn down.
+ */
+#ifndef tlb_start_vma
+#define tlb_start_vma(tlb, vma) do { } while (0)
+#endif
+
+#define __tlb_end_vma(tlb, vma) \
+ do { \
+ if (!tlb->fullmm && tlb->end) { \
+ tlb_flush(tlb); \
+ __tlb_reset_range(tlb); \
+ } \
+ } while (0)
+
+#ifndef tlb_end_vma
+#define tlb_end_vma __tlb_end_vma
+#endif
+
+#ifndef __tlb_remove_tlb_entry
+#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
+#endif
+
/**
* tlb_remove_tlb_entry - remember a pte unmapping for later tlb invalidation.
*
- * Record the fact that pte's were really umapped in ->need_flush, so we can
- * later optimise away the tlb invalidate. This helps when userspace is
- * unmapping already-unmapped pages, which happens quite a lot.
+ * Record the fact that pte's were really unmapped by updating the range,
+ * so we can later optimise away the tlb invalidate. This helps when
+ * userspace is unmapping already-unmapped pages, which happens quite a lot.
*/
#define tlb_remove_tlb_entry(tlb, ptep, address) \
do { \
- tlb->need_flush = 1; \
+ __tlb_adjust_range(tlb, address); \
__tlb_remove_tlb_entry(tlb, ptep, address); \
} while (0)
@@ -151,27 +188,27 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page)
#define tlb_remove_pmd_tlb_entry(tlb, pmdp, address) \
do { \
- tlb->need_flush = 1; \
+ __tlb_adjust_range(tlb, address); \
__tlb_remove_pmd_tlb_entry(tlb, pmdp, address); \
} while (0)
#define pte_free_tlb(tlb, ptep, address) \
do { \
- tlb->need_flush = 1; \
+ __tlb_adjust_range(tlb, address); \
__pte_free_tlb(tlb, ptep, address); \
} while (0)
#ifndef __ARCH_HAS_4LEVEL_HACK
#define pud_free_tlb(tlb, pudp, address) \
do { \
- tlb->need_flush = 1; \
+ __tlb_adjust_range(tlb, address); \
__pud_free_tlb(tlb, pudp, address); \
} while (0)
#endif
#define pmd_free_tlb(tlb, pmdp, address) \
do { \
- tlb->need_flush = 1; \
+ __tlb_adjust_range(tlb, address); \
__pmd_free_tlb(tlb, pmdp, address); \
} while (0)
--
cgit v1.2.1
From 48b6bca6b7b8309697fc8a101793befe92d249d9 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Thu, 13 Nov 2014 20:42:03 -0600
Subject: fs: add freeze_super/thaw_super fs hooks
Currently, freezing a filesystem involves calling freeze_super, which locks
sb->s_umount and then calls the fs-specific freeze_fs hook. This makes it
hard for gfs2 (and potentially other cluster filesystems) to use the vfs
freezing code to do freezes on all the cluster nodes.
In order to communicate that a freeze has been requested, and to make sure
that only one node is trying to freeze at a time, gfs2 uses a glock
(sd_freeze_gl). The problem is that there is no hook for gfs2 to acquire
this lock before calling freeze_super. This means that two nodes can
attempt to freeze the filesystem by both calling freeze_super, acquiring
the sb->s_umount lock, and then attempting to grab the cluster glock
sd_freeze_gl. Only one will succeed, and the other will be stuck in
freeze_super, making it impossible to finish freezing the node.
To solve this problem, this patch adds the freeze_super and thaw_super
hooks. If a filesystem implements these hooks, they are called instead of
the vfs freeze_super and thaw_super functions. This means that every
filesystem that implements these hooks must call the vfs freeze_super and
thaw_super functions itself within the hook function to make use of the vfs
freezing code.
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
include/linux/fs.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9ab779e8a63c..b4a1d73c0d5d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1577,7 +1577,9 @@ struct super_operations {
void (*evict_inode) (struct inode *);
void (*put_super) (struct super_block *);
int (*sync_fs)(struct super_block *sb, int wait);
+ int (*freeze_super) (struct super_block *);
int (*freeze_fs) (struct super_block *);
+ int (*thaw_super) (struct super_block *);
int (*unfreeze_fs) (struct super_block *);
int (*statfs) (struct dentry *, struct kstatfs *);
int (*remount_fs) (struct super_block *, int *, char *);
--
cgit v1.2.1
From 52744af3af977ccbbf768be34650d7c75cfc1ad6 Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Fri, 14 Nov 2014 05:26:21 +0100
Subject: crypto: doc - document uncovered member variables
Fix documentation typo for shash_alg->descsize.
Add documentation for initially uncovered member variables.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/hash.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 3d66e8bd0932..98abda9ed3aa 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -38,6 +38,10 @@ struct crypto_ahash;
* will save the partial state of the transformation into it. On the
* other side, the @import function will load the state from a
* buffer of this size as well.
+ * @base: Start of data structure of cipher algorithm. The common data
+ * structure of crypto_alg contains information common to all ciphers.
+ * The hash_alg_common data structure now adds the hash-specific
+ * information.
*/
struct hash_alg_common {
unsigned int digestsize;
@@ -114,6 +118,7 @@ struct ahash_request {
* entire state of the ongoing transformation from a provided block of
* data so the transformation can continue from this point onward. No
* data processing happens at this point.
+ * @halg: see struct hash_alg_common
*/
struct ahash_alg {
int (*init)(struct ahash_request *req);
@@ -153,7 +158,7 @@ struct shash_desc {
* @setkey: see struct ahash_alg
* @digestsize: see struct ahash_alg
* @statesize: see struct ahash_alg
- * @dedcsize: Size of the operational state for the message digest. This state
+ * @descsize: Size of the operational state for the message digest. This state
* size is the memory size that needs to be allocated for
* shash_desc.__ctx
* @base: internally used
--
cgit v1.2.1
From 7c7f2f2bc9a63f9605a16eabac59fc655dfe7c9a Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Mon, 17 Nov 2014 10:41:57 -0700
Subject: blk-mq: add blk_mq_free_hctx_request()
It's silly to use blk_mq_free_request() which in turn maps the
request to the hardware queue, for places where we already know
what the hardware queue is. This saves us an extra mapping of a
hardware queue on request completion, if the caller knows this
information already.
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/blk-mq.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index c3b64ec5321e..fb0a4fb3dc2b 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -169,6 +169,7 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule);
void blk_mq_insert_request(struct request *, bool, bool, bool);
void blk_mq_run_queues(struct request_queue *q, bool async);
void blk_mq_free_request(struct request *rq);
+void blk_mq_free_hctx_request(struct blk_mq_hw_ctx *, struct request *rq);
bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
gfp_t gfp, bool reserved);
--
cgit v1.2.1
From 069fb0b63722f8c9f8b4bbce236793626c89af33 Mon Sep 17 00:00:00 2001
From: Sebastian Schmidt <yath@yath.de>
Date: Fri, 14 Nov 2014 10:51:45 -0800
Subject: syslog: Provide stub check_syslog_permissions
When building without CONFIG_PRINTK, we need to provide a stub
check_syslog_permissions. As there is no way to turn on the
dmesg_restrict sysctl without CONFIG_PRINTK, return success.
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Sebastian Schmidt <yath@yath.de>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
include/linux/syslog.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/syslog.h b/include/linux/syslog.h
index 9def5297dbb7..4b7b875a7ce1 100644
--- a/include/linux/syslog.h
+++ b/include/linux/syslog.h
@@ -48,6 +48,14 @@
#define SYSLOG_FROM_PROC 1
int do_syslog(int type, char __user *buf, int count, bool from_file);
+
+#ifdef CONFIG_PRINTK
int check_syslog_permissions(int type, bool from_file);
+#else
+static inline int check_syslog_permissions(int type, bool from_file)
+{
+ return 0;
+}
+#endif
#endif /* _LINUX_SYSLOG_H */
--
cgit v1.2.1
From 9a6cb70f40b0268297024949eb0a2689e3b7769b Mon Sep 17 00:00:00 2001
From: Georgi Djakov <gdjakov@mm-sol.com>
Date: Fri, 10 Oct 2014 16:57:24 +0300
Subject: clk: qcom: Fix duplicate rbcpr clock name
There is a duplication in a clock name for apq8084 platform that causes
the following warning: "RBCPR_CLK_SRC" redefined
Resolve this by adding a MMSS_ prefix to this clock and making its name
coherent with msm8974 platform.
Fixes: 2b46cd23a5a2 ("clk: qcom: Add APQ8084 Multimedia Clock Controller (MMCC) support")
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/dt-bindings/clock/qcom,mmcc-apq8084.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/qcom,mmcc-apq8084.h b/include/dt-bindings/clock/qcom,mmcc-apq8084.h
index a929f86d0ddd..d72b5b35f15e 100644
--- a/include/dt-bindings/clock/qcom,mmcc-apq8084.h
+++ b/include/dt-bindings/clock/qcom,mmcc-apq8084.h
@@ -60,7 +60,7 @@
#define ESC1_CLK_SRC 43
#define HDMI_CLK_SRC 44
#define VSYNC_CLK_SRC 45
-#define RBCPR_CLK_SRC 46
+#define MMSS_RBCPR_CLK_SRC 46
#define RBBMTIMER_CLK_SRC 47
#define MAPLE_CLK_SRC 48
#define VDP_CLK_SRC 49
--
cgit v1.2.1
From e6d5e7d90be92cee626d7ec16ca9b06f1eed710b Mon Sep 17 00:00:00 2001
From: James Hogan <james.hogan@imgtec.com>
Date: Fri, 14 Nov 2014 15:32:09 +0000
Subject: clk-divider: Fix READ_ONLY when divider > 1
Commit 79c6ab509558 (clk: divider: add CLK_DIVIDER_READ_ONLY flag) in
v3.16 introduced the CLK_DIVIDER_READ_ONLY flag which caused the
recalc_rate() and round_rate() clock callbacks to be omitted.
However using this flag has the unfortunate side effect of causing the
clock recalculation code when a clock rate change is attempted to always
treat it as a pass-through clock, i.e. with a fixed divide of 1, which
may not be the case. Child clock rates are then recalculated using the
wrong parent rate.
Therefore instead of dropping the recalc_rate() and round_rate()
callbacks, alter clk_divider_bestdiv() to always report the current
divider as the best divider so that it is never altered.
For me the read only clock was the system clock, which divided the PLL
rate by 2, from which both the UART and the SPI clocks were divided.
Initial setting of the UART rate set it correctly, but when the SPI
clock was set, the other child clocks were miscalculated. The UART clock
was recalculated using the PLL rate as the parent rate, resulting in a
UART new_rate of double what it should be, and a UART which spewed forth
garbage when the rate changes were propagated.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Max Schwarz <max.schwarz@online.de>
Cc: <stable@vger.kernel.org> # v3.16+
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/linux/clk-provider.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index be21af149f11..2839c639f092 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -352,7 +352,6 @@ struct clk_divider {
#define CLK_DIVIDER_READ_ONLY BIT(5)
extern const struct clk_ops clk_divider_ops;
-extern const struct clk_ops clk_divider_ro_ops;
struct clk *clk_register_divider(struct device *dev, const char *name,
const char *parent_name, unsigned long flags,
void __iomem *reg, u8 shift, u8 width,
--
cgit v1.2.1
From 3fb1581ea1ab0aec6ac5430dc0e257a8c9b71680 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 14 Nov 2014 09:47:25 +0100
Subject: ARM: 8199/1: PM / Runtime: Add getter for querying the IRQ safe
option v12
Add a simple getter pm_runtime_is_irq_safe() for querying whether runtime
PM IRQ safe was set or not.
Various bus drivers implementing runtime PM may use choose to suspend
differently based on IRQ safeness status of child driver (e.g. do not
unprepare the clock if IRQ safe is not set).
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
include/linux/pm_runtime.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 367f49b9a1c9..44d74f0f182e 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -128,6 +128,11 @@ static inline void pm_runtime_mark_last_busy(struct device *dev)
ACCESS_ONCE(dev->power.last_busy) = jiffies;
}
+static inline bool pm_runtime_is_irq_safe(struct device *dev)
+{
+ return dev->power.irq_safe;
+}
+
#else /* !CONFIG_PM_RUNTIME */
static inline int __pm_runtime_idle(struct device *dev, int rpmflags)
@@ -167,6 +172,7 @@ static inline bool pm_runtime_enabled(struct device *dev) { return false; }
static inline void pm_runtime_no_callbacks(struct device *dev) {}
static inline void pm_runtime_irq_safe(struct device *dev) {}
+static inline bool pm_runtime_is_irq_safe(struct device *dev) { return false; }
static inline bool pm_runtime_callbacks_present(struct device *dev) { return false; }
static inline void pm_runtime_mark_last_busy(struct device *dev) {}
--
cgit v1.2.1
From f560e3229564a673603541ebfb36118d7cd98038 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 14 Nov 2014 09:47:49 +0100
Subject: ARM: 8200/1: amba: Add helpers for (un)preparing AMBA clock v12
Add amba_pclk_prepare() and amba_pclk_unprepare() inline functions for
handling the AMBA bus clock by device drivers.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
include/linux/amba/bus.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index c324f5700d1a..ac02f9bd63dc 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -97,6 +97,16 @@ void amba_release_regions(struct amba_device *);
#define amba_pclk_disable(d) \
do { if (!IS_ERR((d)->pclk)) clk_disable((d)->pclk); } while (0)
+static inline int amba_pclk_prepare(struct amba_device *dev)
+{
+ return clk_prepare(dev->pclk);
+}
+
+static inline void amba_pclk_unprepare(struct amba_device *dev)
+{
+ clk_unprepare(dev->pclk);
+}
+
/* Some drivers don't use the struct amba_device */
#define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff)
#define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f)
--
cgit v1.2.1
From 0288d7183c41c0192d2963d44590f346f4aee917 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Mon, 17 Nov 2014 15:51:01 -0500
Subject: audit: convert status version to a feature bitmap
The version field defined in the audit status structure was found to have
limitations in terms of its expressibility of features supported. This is
distict from the get/set features call to be able to command those features
that are present.
Converting this field from a version number to a feature bitmap will allow
distributions to selectively backport and support certain features and will
allow upstream to be able to deprecate features in the future. It will allow
userspace clients to first query the kernel for which features are actually
present and supported. Currently, EINVAL is returned rather than EOPNOTSUP,
which isn't helpful in determining if there was an error in the command, or if
it simply isn't supported yet. Past features are not represented by this
bitmap, but their use may be converted to EOPNOTSUP if needed in the future.
Since "version" is too generic to convert with a #define, use a union in the
struct status, introducing the member "feature_bitmap" unionized with
"version".
Convert existing AUDIT_VERSION_* macros over to AUDIT_FEATURE_BITMAP*
counterparts, leaving the former for backwards compatibility.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: minor whitespace tweaks]
Signed-off-by: Paul Moore <pmoore@redhat.com>
---
include/uapi/linux/audit.h | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 4d100c841c80..2ccf19e06e15 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -322,9 +322,15 @@ enum {
#define AUDIT_STATUS_BACKLOG_LIMIT 0x0010
#define AUDIT_STATUS_BACKLOG_WAIT_TIME 0x0020
-#define AUDIT_VERSION_BACKLOG_LIMIT 1
-#define AUDIT_VERSION_BACKLOG_WAIT_TIME 2
-#define AUDIT_VERSION_LATEST AUDIT_VERSION_BACKLOG_WAIT_TIME
+#define AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT 0x00000001
+#define AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME 0x00000002
+#define AUDIT_FEATURE_BITMAP_ALL (AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT | \
+ AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME)
+
+/* deprecated: AUDIT_VERSION_* */
+#define AUDIT_VERSION_LATEST AUDIT_FEATURE_BITMAP_ALL
+#define AUDIT_VERSION_BACKLOG_LIMIT AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT
+#define AUDIT_VERSION_BACKLOG_WAIT_TIME AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME
/* Failure-to-log actions */
#define AUDIT_FAIL_SILENT 0
@@ -403,7 +409,10 @@ struct audit_status {
__u32 backlog_limit; /* waiting messages limit */
__u32 lost; /* messages lost */
__u32 backlog; /* messages waiting in queue */
- __u32 version; /* audit api version number */
+ union {
+ __u32 version; /* deprecated: audit api version num */
+ __u32 feature_bitmap; /* bitmap of kernel audit features */
+ };
__u32 backlog_wait_time;/* message queue wait timeout */
};
--
cgit v1.2.1
From ee1b58d36aa1b5a79eaba11f5c3633c88231da83 Mon Sep 17 00:00:00 2001
From: Qiaowei Ren <qiaowei.ren@intel.com>
Date: Fri, 14 Nov 2014 07:18:19 -0800
Subject: mpx: Extend siginfo structure to include bound violation information
This patch adds new fields about bound violation into siginfo
structure. si_lower and si_upper are respectively lower bound
and upper bound when bound violation is caused.
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-mm@kvack.org
Cc: linux-mips@linux-mips.org
Cc: Dave Hansen <dave@sr71.net>
Link: http://lkml.kernel.org/r/20141114151819.1908C900@viggo.jf.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/uapi/asm-generic/siginfo.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index ba5be7fdbdfe..1e3552037a5a 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -91,6 +91,10 @@ typedef struct siginfo {
int _trapno; /* TRAP # which caused the signal */
#endif
short _addr_lsb; /* LSB of the reported address */
+ struct {
+ void __user *_lower;
+ void __user *_upper;
+ } _addr_bnd;
} _sigfault;
/* SIGPOLL */
@@ -131,6 +135,8 @@ typedef struct siginfo {
#define si_trapno _sifields._sigfault._trapno
#endif
#define si_addr_lsb _sifields._sigfault._addr_lsb
+#define si_lower _sifields._sigfault._addr_bnd._lower
+#define si_upper _sifields._sigfault._addr_bnd._upper
#define si_band _sifields._sigpoll._band
#define si_fd _sifields._sigpoll._fd
#ifdef __ARCH_SIGSYS
@@ -199,7 +205,8 @@ typedef struct siginfo {
*/
#define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */
#define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */
-#define NSIGSEGV 2
+#define SEGV_BNDERR (__SI_FAULT|3) /* failed address bound checks */
+#define NSIGSEGV 3
/*
* SIGBUS si_codes
--
cgit v1.2.1
From 4aae7e436fa51faf4bf5d11b175aea82cfe8224a Mon Sep 17 00:00:00 2001
From: Qiaowei Ren <qiaowei.ren@intel.com>
Date: Fri, 14 Nov 2014 07:18:25 -0800
Subject: x86, mpx: Introduce VM_MPX to indicate that a VMA is MPX specific
MPX-enabled applications using large swaths of memory can
potentially have large numbers of bounds tables in process
address space to save bounds information. These tables can take
up huge swaths of memory (as much as 80% of the memory on the
system) even if we clean them up aggressively. In the worst-case
scenario, the tables can be 4x the size of the data structure
being tracked. IOW, a 1-page structure can require 4 bounds-table
pages.
Being this huge, our expectation is that folks using MPX are
going to be keen on figuring out how much memory is being
dedicated to it. So we need a way to track memory use for MPX.
If we want to specifically track MPX VMAs we need to be able to
distinguish them from normal VMAs, and keep them from getting
merged with normal VMAs. A new VM_ flag set only on MPX VMAs does
both of those things. With this flag, MPX bounds-table VMAs can
be distinguished from other VMAs, and userspace can also walk
/proc/$pid/smaps to get memory usage for MPX.
In addition to this flag, we also introduce a special ->vm_ops
specific to MPX VMAs (see the patch "add MPX specific mmap
interface"), but currently different ->vm_ops do not by
themselves prevent VMA merging, so we still need this flag.
We understand that VM_ flags are scarce and are open to other
options.
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-mm@kvack.org
Cc: linux-mips@linux-mips.org
Cc: Dave Hansen <dave@sr71.net>
Link: http://lkml.kernel.org/r/20141114151825.565625B3@viggo.jf.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/mm.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index b46461116cd2..f7606d3a0915 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -128,6 +128,7 @@ extern unsigned int kobjsize(const void *objp);
#define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */
#define VM_NONLINEAR 0x00800000 /* Is non-linear (remap_file_pages) */
#define VM_ARCH_1 0x01000000 /* Architecture-specific flag */
+#define VM_ARCH_2 0x02000000
#define VM_DONTDUMP 0x04000000 /* Do not include in the core dump */
#ifdef CONFIG_MEM_SOFT_DIRTY
@@ -155,6 +156,11 @@ extern unsigned int kobjsize(const void *objp);
# define VM_MAPPED_COPY VM_ARCH_1 /* T if mapped copy of data (nommu mmap) */
#endif
+#if defined(CONFIG_X86)
+/* MPX specific bounds table or bounds directory */
+# define VM_MPX VM_ARCH_2
+#endif
+
#ifndef VM_GROWSUP
# define VM_GROWSUP VM_NONE
#endif
--
cgit v1.2.1
From fe3d197f84319d3bce379a9c0dc17b1f48ad358c Mon Sep 17 00:00:00 2001
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: Fri, 14 Nov 2014 07:18:29 -0800
Subject: x86, mpx: On-demand kernel allocation of bounds tables
This is really the meat of the MPX patch set. If there is one patch to
review in the entire series, this is the one. There is a new ABI here
and this kernel code also interacts with userspace memory in a
relatively unusual manner. (small FAQ below).
Long Description:
This patch adds two prctl() commands to provide enable or disable the
management of bounds tables in kernel, including on-demand kernel
allocation (See the patch "on-demand kernel allocation of bounds tables")
and cleanup (See the patch "cleanup unused bound tables"). Applications
do not strictly need the kernel to manage bounds tables and we expect
some applications to use MPX without taking advantage of this kernel
support. This means the kernel can not simply infer whether an application
needs bounds table management from the MPX registers. The prctl() is an
explicit signal from userspace.
PR_MPX_ENABLE_MANAGEMENT is meant to be a signal from userspace to
require kernel's help in managing bounds tables.
PR_MPX_DISABLE_MANAGEMENT is the opposite, meaning that userspace don't
want kernel's help any more. With PR_MPX_DISABLE_MANAGEMENT, the kernel
won't allocate and free bounds tables even if the CPU supports MPX.
PR_MPX_ENABLE_MANAGEMENT will fetch the base address of the bounds
directory out of a userspace register (bndcfgu) and then cache it into
a new field (->bd_addr) in the 'mm_struct'. PR_MPX_DISABLE_MANAGEMENT
will set "bd_addr" to an invalid address. Using this scheme, we can
use "bd_addr" to determine whether the management of bounds tables in
kernel is enabled.
Also, the only way to access that bndcfgu register is via an xsaves,
which can be expensive. Caching "bd_addr" like this also helps reduce
the cost of those xsaves when doing table cleanup at munmap() time.
Unfortunately, we can not apply this optimization to #BR fault time
because we need an xsave to get the value of BNDSTATUS.
==== Why does the hardware even have these Bounds Tables? ====
MPX only has 4 hardware registers for storing bounds information.
If MPX-enabled code needs more than these 4 registers, it needs to
spill them somewhere. It has two special instructions for this
which allow the bounds to be moved between the bounds registers
and some new "bounds tables".
They are similar conceptually to a page fault and will be raised by
the MPX hardware during both bounds violations or when the tables
are not present. This patch handles those #BR exceptions for
not-present tables by carving the space out of the normal processes
address space (essentially calling the new mmap() interface indroduced
earlier in this patch set.) and then pointing the bounds-directory
over to it.
The tables *need* to be accessed and controlled by userspace because
the instructions for moving bounds in and out of them are extremely
frequent. They potentially happen every time a register pointing to
memory is dereferenced. Any direct kernel involvement (like a syscall)
to access the tables would obviously destroy performance.
==== Why not do this in userspace? ====
This patch is obviously doing this allocation in the kernel.
However, MPX does not strictly *require* anything in the kernel.
It can theoretically be done completely from userspace. Here are
a few ways this *could* be done. I don't think any of them are
practical in the real-world, but here they are.
Q: Can virtual space simply be reserved for the bounds tables so
that we never have to allocate them?
A: As noted earlier, these tables are *HUGE*. An X-GB virtual
area needs 4*X GB of virtual space, plus 2GB for the bounds
directory. If we were to preallocate them for the 128TB of
user virtual address space, we would need to reserve 512TB+2GB,
which is larger than the entire virtual address space today.
This means they can not be reserved ahead of time. Also, a
single process's pre-popualated bounds directory consumes 2GB
of virtual *AND* physical memory. IOW, it's completely
infeasible to prepopulate bounds directories.
Q: Can we preallocate bounds table space at the same time memory
is allocated which might contain pointers that might eventually
need bounds tables?
A: This would work if we could hook the site of each and every
memory allocation syscall. This can be done for small,
constrained applications. But, it isn't practical at a larger
scale since a given app has no way of controlling how all the
parts of the app might allocate memory (think libraries). The
kernel is really the only place to intercept these calls.
Q: Could a bounds fault be handed to userspace and the tables
allocated there in a signal handler instead of in the kernel?
A: (thanks to tglx) mmap() is not on the list of safe async
handler functions and even if mmap() would work it still
requires locking or nasty tricks to keep track of the
allocation state there.
Having ruled out all of the userspace-only approaches for managing
bounds tables that we could think of, we create them on demand in
the kernel.
Based-on-patch-by: Qiaowei Ren <qiaowei.ren@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-mm@kvack.org
Cc: linux-mips@linux-mips.org
Cc: Dave Hansen <dave@sr71.net>
Link: http://lkml.kernel.org/r/20141114151829.AD4310DE@viggo.jf.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/asm-generic/mmu_context.h | 5 +++++
include/linux/mm_types.h | 4 ++++
include/uapi/linux/prctl.h | 6 ++++++
3 files changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/mmu_context.h b/include/asm-generic/mmu_context.h
index a7eec910ba6c..1f2a8f9c9264 100644
--- a/include/asm-generic/mmu_context.h
+++ b/include/asm-generic/mmu_context.h
@@ -42,4 +42,9 @@ static inline void activate_mm(struct mm_struct *prev_mm,
{
}
+static inline void arch_bprm_mm_init(struct mm_struct *mm,
+ struct vm_area_struct *vma)
+{
+}
+
#endif /* __ASM_GENERIC_MMU_CONTEXT_H */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 6e0b286649f1..004e9d17b47e 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -454,6 +454,10 @@ struct mm_struct {
bool tlb_flush_pending;
#endif
struct uprobes_state uprobes_state;
+#ifdef CONFIG_X86_INTEL_MPX
+ /* address of the bounds directory */
+ void __user *bd_addr;
+#endif
};
static inline void mm_init_cpumask(struct mm_struct *mm)
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index 513df75d0fc9..89f63503f903 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -179,4 +179,10 @@ struct prctl_mm_map {
#define PR_SET_THP_DISABLE 41
#define PR_GET_THP_DISABLE 42
+/*
+ * Tell the kernel to start/stop helping userspace manage bounds tables.
+ */
+#define PR_MPX_ENABLE_MANAGEMENT 43
+#define PR_MPX_DISABLE_MANAGEMENT 44
+
#endif /* _LINUX_PRCTL_H */
--
cgit v1.2.1
From 1de4fa14ee25a8edf287855513b61c3945c8878a Mon Sep 17 00:00:00 2001
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: Fri, 14 Nov 2014 07:18:31 -0800
Subject: x86, mpx: Cleanup unused bound tables
The previous patch allocates bounds tables on-demand. As noted in
an earlier description, these can add up to *HUGE* amounts of
memory. This has caused OOMs in practice when running tests.
This patch adds support for freeing bounds tables when they are no
longer in use.
There are two types of mappings in play when unmapping tables:
1. The mapping with the actual data, which userspace is
munmap()ing or brk()ing away, etc...
2. The mapping for the bounds table *backing* the data
(is tagged with VM_MPX, see the patch "add MPX specific
mmap interface").
If userspace use the prctl() indroduced earlier in this patchset
to enable the management of bounds tables in kernel, when it
unmaps the first type of mapping with the actual data, the kernel
needs to free the mapping for the bounds table backing the data.
This patch hooks in at the very end of do_unmap() to do so.
We look at the addresses being unmapped and find the bounds
directory entries and tables which cover those addresses. If
an entire table is unused, we clear associated directory entry
and free the table.
Once we unmap the bounds table, we would have a bounds directory
entry pointing at empty address space. That address space might
now be allocated for some other (random) use, and the MPX
hardware might now try to walk it as if it were a bounds table.
That would be bad. So any unmapping of an enture bounds table
has to be accompanied by a corresponding write to the bounds
directory entry to invalidate it. That write to the bounds
directory can fault, which causes the following problem:
Since we are doing the freeing from munmap() (and other paths
like it), we hold mmap_sem for write. If we fault, the page
fault handler will attempt to acquire mmap_sem for read and
we will deadlock. To avoid the deadlock, we pagefault_disable()
when touching the bounds directory entry and use a
get_user_pages() to resolve the fault.
The unmapping of bounds tables happends under vm_munmap(). We
also (indirectly) call vm_munmap() to _do_ the unmapping of the
bounds tables. We avoid unbounded recursion by disallowing
freeing of bounds tables *for* bounds tables. This would not
occur normally, so should not have any practical impact. Being
strict about it here helps ensure that we do not have an
exploitable stack overflow.
Based-on-patch-by: Qiaowei Ren <qiaowei.ren@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-mm@kvack.org
Cc: linux-mips@linux-mips.org
Cc: Dave Hansen <dave@sr71.net>
Link: http://lkml.kernel.org/r/20141114151831.E4531C4A@viggo.jf.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/asm-generic/mmu_context.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/mmu_context.h b/include/asm-generic/mmu_context.h
index 1f2a8f9c9264..aa2d8ba35b20 100644
--- a/include/asm-generic/mmu_context.h
+++ b/include/asm-generic/mmu_context.h
@@ -47,4 +47,10 @@ static inline void arch_bprm_mm_init(struct mm_struct *mm,
{
}
+static inline void arch_unmap(struct mm_struct *mm,
+ struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)
+{
+}
+
#endif /* __ASM_GENERIC_MMU_CONTEXT_H */
--
cgit v1.2.1
From 00e7c295968d74f4dbb00aef8334fafe788e3c89 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 14 Nov 2014 08:41:32 +0100
Subject: PM / Domains: Move struct pm_domain_data to pm_domain.h
The definition of the struct pm_domain_data better belongs in the
header for the PM domains, let's move it there.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm.h | 6 +-----
include/linux/pm_domain.h | 5 +++++
2 files changed, 6 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 383fd68aaee1..45e3e78c1e3a 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -538,11 +538,7 @@ enum rpm_request {
};
struct wakeup_source;
-
-struct pm_domain_data {
- struct list_head list_node;
- struct device *dev;
-};
+struct pm_domain_data;
struct pm_subsys_data {
spinlock_t lock;
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 73e938b7e937..86689b59ce5b 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -98,6 +98,11 @@ struct gpd_timing_data {
bool cached_stop_ok;
};
+struct pm_domain_data {
+ struct list_head list_node;
+ struct device *dev;
+};
+
struct generic_pm_domain_data {
struct pm_domain_data base;
struct gpd_timing_data td;
--
cgit v1.2.1
From 38da1703060a520e69b00405f9bdf765d1396cd0 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 17 Nov 2014 20:52:20 +0200
Subject: Bluetooth: Use shorter "rand" name for "randomizer"
The common short form of "randomizer" is "rand" in many places
(including the Bluetooth specification). The shorter version also makes
for easier to read code with less forced line breaks. This patch renames
all occurences of "randomizer" to "rand" in the Bluetooth subsystem
code.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci.h | 12 ++++++------
include/net/bluetooth/hci_core.h | 14 +++++++-------
include/net/bluetooth/mgmt.h | 12 ++++++------
3 files changed, 19 insertions(+), 19 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index d5f85d7746bc..e56f9099f8e3 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -639,7 +639,7 @@ struct hci_cp_user_passkey_reply {
struct hci_cp_remote_oob_data_reply {
bdaddr_t bdaddr;
__u8 hash[16];
- __u8 randomizer[16];
+ __u8 rand[16];
} __packed;
#define HCI_OP_REMOTE_OOB_DATA_NEG_REPLY 0x0433
@@ -731,9 +731,9 @@ struct hci_rp_set_csb {
struct hci_cp_remote_oob_ext_data_reply {
bdaddr_t bdaddr;
__u8 hash192[16];
- __u8 randomizer192[16];
+ __u8 rand192[16];
__u8 hash256[16];
- __u8 randomizer256[16];
+ __u8 rand256[16];
} __packed;
#define HCI_OP_SNIFF_MODE 0x0803
@@ -940,7 +940,7 @@ struct hci_cp_write_ssp_mode {
struct hci_rp_read_local_oob_data {
__u8 status;
__u8 hash[16];
- __u8 randomizer[16];
+ __u8 rand[16];
} __packed;
#define HCI_OP_READ_INQ_RSP_TX_POWER 0x0c58
@@ -1024,9 +1024,9 @@ struct hci_cp_write_sc_support {
struct hci_rp_read_local_oob_ext_data {
__u8 status;
__u8 hash192[16];
- __u8 randomizer192[16];
+ __u8 rand192[16];
__u8 hash256[16];
- __u8 randomizer256[16];
+ __u8 rand256[16];
} __packed;
#define HCI_OP_READ_LOCAL_VERSION 0x1001
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index fe2d5f299e12..a805b3d97c0b 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -140,9 +140,9 @@ struct oob_data {
struct list_head list;
bdaddr_t bdaddr;
u8 hash192[16];
- u8 randomizer192[16];
+ u8 rand192[16];
u8 hash256[16];
- u8 randomizer256[16];
+ u8 rand256[16];
};
#define HCI_MAX_SHORT_NAME_LENGTH 10
@@ -943,10 +943,10 @@ void hci_remote_oob_data_clear(struct hci_dev *hdev);
struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
bdaddr_t *bdaddr);
int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
- u8 *hash, u8 *randomizer);
+ u8 *hash, u8 *rand);
int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
- u8 *hash192, u8 *randomizer192,
- u8 *hash256, u8 *randomizer256);
+ u8 *hash192, u8 *rand192,
+ u8 *hash256, u8 *rand256);
int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
@@ -1374,8 +1374,8 @@ void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
u8 status);
void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192,
- u8 *randomizer192, u8 *hash256,
- u8 *randomizer256, u8 status);
+ u8 *rand192, u8 *hash256, u8 *rand256,
+ u8 status);
void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 414cd2f9a437..b391fd663468 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -299,28 +299,28 @@ struct mgmt_cp_user_passkey_neg_reply {
#define MGMT_READ_LOCAL_OOB_DATA_SIZE 0
struct mgmt_rp_read_local_oob_data {
__u8 hash[16];
- __u8 randomizer[16];
+ __u8 rand[16];
} __packed;
struct mgmt_rp_read_local_oob_ext_data {
__u8 hash192[16];
- __u8 randomizer192[16];
+ __u8 rand192[16];
__u8 hash256[16];
- __u8 randomizer256[16];
+ __u8 rand256[16];
} __packed;
#define MGMT_OP_ADD_REMOTE_OOB_DATA 0x0021
struct mgmt_cp_add_remote_oob_data {
struct mgmt_addr_info addr;
__u8 hash[16];
- __u8 randomizer[16];
+ __u8 rand[16];
} __packed;
#define MGMT_ADD_REMOTE_OOB_DATA_SIZE (MGMT_ADDR_INFO_SIZE + 32)
struct mgmt_cp_add_remote_oob_ext_data {
struct mgmt_addr_info addr;
__u8 hash192[16];
- __u8 randomizer192[16];
+ __u8 rand192[16];
__u8 hash256[16];
- __u8 randomizer256[16];
+ __u8 rand256[16];
} __packed;
#define MGMT_ADD_REMOTE_OOB_EXT_DATA_SIZE (MGMT_ADDR_INFO_SIZE + 64)
--
cgit v1.2.1
From c9cd2ce2bc6313aafa33f8e28d29a8690252f219 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Wed, 5 Nov 2014 17:01:15 +0200
Subject: integrity: provide a hook to load keys when rootfs is ready
Keys can only be loaded once the rootfs is mounted. Initcalls
are not suitable for that. This patch defines a special hook
to load the x509 public keys onto the IMA keyring, before
attempting to access any file. The keys are required for
verifying the file's signature. The hook is called after the
root filesystem is mounted and before the kernel calls 'init'.
Changes in v3:
* added more explanation to the patch description (Mimi)
Changes in v2:
* Hook renamed as 'integrity_load_keys()' to handle both IMA and EVM
keys by integrity subsystem.
* Hook patch moved after defining loading functions
Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
include/linux/integrity.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/integrity.h b/include/linux/integrity.h
index 83222cebd47b..c2d6082a1a4c 100644
--- a/include/linux/integrity.h
+++ b/include/linux/integrity.h
@@ -24,6 +24,7 @@ enum integrity_status {
#ifdef CONFIG_INTEGRITY
extern struct integrity_iint_cache *integrity_inode_get(struct inode *inode);
extern void integrity_inode_free(struct inode *inode);
+extern void __init integrity_load_keys(void);
#else
static inline struct integrity_iint_cache *
@@ -36,5 +37,10 @@ static inline void integrity_inode_free(struct inode *inode)
{
return;
}
+
+static inline void integrity_load_keys(void)
+{
+}
#endif /* CONFIG_INTEGRITY */
+
#endif /* _LINUX_INTEGRITY_H */
--
cgit v1.2.1
From 6fb5032ebb1c5b852461d64ee33829081de8ca61 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Wed, 5 Nov 2014 17:01:17 +0200
Subject: VFS: refactor vfs_read()
integrity_kernel_read() duplicates the file read operations code
in vfs_read(). This patch refactors vfs_read() code creating a
helper function __vfs_read(). It is used by both vfs_read() and
integrity_kernel_read().
Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
include/linux/fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e11d60cc867b..ac3a36e05da9 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1527,6 +1527,7 @@ ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
struct iovec *fast_pointer,
struct iovec **ret_pointer);
+extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
--
cgit v1.2.1
From 7d172cc89b8589e4173d0c73a1ddaae408f29c9d Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 18 Nov 2014 02:49:51 -0500
Subject: cgroup: add cgroup_subsys->css_released()
Add a new cgroup subsys callback css_released(). This is called when
the reference count of the css (cgroup_subsys_state) reaches zero
before RCU scheduling free.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Zefan Li <lizefan@huawei.com>
---
include/linux/cgroup.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 1d5196889048..e717a39f22ea 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -612,6 +612,7 @@ struct cgroup_subsys {
struct cgroup_subsys_state *(*css_alloc)(struct cgroup_subsys_state *parent_css);
int (*css_online)(struct cgroup_subsys_state *css);
void (*css_offline)(struct cgroup_subsys_state *css);
+ void (*css_released)(struct cgroup_subsys_state *css);
void (*css_free)(struct cgroup_subsys_state *css);
void (*css_reset)(struct cgroup_subsys_state *css);
--
cgit v1.2.1
From 56c807ba4e91f0980567b6a69de239677879b17f Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 18 Nov 2014 02:49:51 -0500
Subject: cgroup: add cgroup_subsys->css_e_css_changed()
Add a new cgroup_subsys operatoin ->css_e_css_changed(). This is
invoked if any of the effective csses seen from the css's cgroup may
have changed. This will be used to implement cgroup writeback
support.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Zefan Li <lizefan@huawei.com>
---
include/linux/cgroup.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index e717a39f22ea..3a04aeb8b5a1 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -615,6 +615,7 @@ struct cgroup_subsys {
void (*css_released)(struct cgroup_subsys_state *css);
void (*css_free)(struct cgroup_subsys_state *css);
void (*css_reset)(struct cgroup_subsys_state *css);
+ void (*css_e_css_changed)(struct cgroup_subsys_state *css);
int (*can_attach)(struct cgroup_subsys_state *css,
struct cgroup_taskset *tset);
--
cgit v1.2.1
From eeecbd1971517103e06f11750dd1a9a1dc37e4e6 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 18 Nov 2014 02:49:52 -0500
Subject: cgroup: implement cgroup_get_e_css()
Implement cgroup_get_e_css() which finds and gets the effective css
for the specified cgroup and subsystem combination. This function
always returns a valid pinned css. This will be used by cgroup
writeback support.
While at it, add comment to cgroup_e_css() to explain why that
function is different from cgroup_get_e_css() and has to test
cgrp->child_subsys_mask instead of cgroup_css(cgrp, ss).
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Zefan Li <lizefan@huawei.com>
---
include/linux/cgroup.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 3a04aeb8b5a1..9fd99f5e699f 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -910,6 +910,8 @@ void css_task_iter_end(struct css_task_iter *it);
int cgroup_attach_task_all(struct task_struct *from, struct task_struct *);
int cgroup_transfer_tasks(struct cgroup *to, struct cgroup *from);
+struct cgroup_subsys_state *cgroup_get_e_css(struct cgroup *cgroup,
+ struct cgroup_subsys *ss);
struct cgroup_subsys_state *css_tryget_online_from_dir(struct dentry *dentry,
struct cgroup_subsys *ss);
--
cgit v1.2.1
From c2a0b538d2c778aef7bf2fbe7973229192c9a392 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sun, 9 Nov 2014 22:47:56 +0800
Subject: iommu/vt-d: Introduce helper function dmar_walk_resources()
Introduce helper function dmar_walk_resources to walk resource entries
in DMAR table and ACPI buffer object returned by ACPI _DSM method
for IOMMU hot-plug.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/linux/dmar.h | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 593fff99e6bf..495df5e48f80 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -121,22 +121,21 @@ extern int dmar_remove_dev_scope(struct dmar_pci_notify_info *info,
extern int detect_intel_iommu(void);
extern int enable_drhd_fault_handling(void);
+static inline int dmar_res_noop(struct acpi_dmar_header *hdr, void *arg)
+{
+ return 0;
+}
+
#ifdef CONFIG_INTEL_IOMMU
extern int iommu_detected, no_iommu;
extern int intel_iommu_init(void);
-extern int dmar_parse_one_rmrr(struct acpi_dmar_header *header);
-extern int dmar_parse_one_atsr(struct acpi_dmar_header *header);
+extern int dmar_parse_one_rmrr(struct acpi_dmar_header *header, void *arg);
+extern int dmar_parse_one_atsr(struct acpi_dmar_header *header, void *arg);
extern int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info);
#else /* !CONFIG_INTEL_IOMMU: */
static inline int intel_iommu_init(void) { return -ENODEV; }
-static inline int dmar_parse_one_rmrr(struct acpi_dmar_header *header)
-{
- return 0;
-}
-static inline int dmar_parse_one_atsr(struct acpi_dmar_header *header)
-{
- return 0;
-}
+#define dmar_parse_one_rmrr dmar_res_noop
+#define dmar_parse_one_atsr dmar_res_noop
static inline int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info)
{
return 0;
--
cgit v1.2.1
From 78d8e7046111425bb688cddc4303d79cb0f0d281 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sun, 9 Nov 2014 22:47:57 +0800
Subject: iommu/vt-d: Dynamically allocate and free seq_id for DMAR units
Introduce functions to support dynamic IOMMU seq_id allocating and
releasing, which will be used to support DMAR hotplug.
Also rename IOMMU_UNITS_SUPPORTED as DMAR_UNITS_SUPPORTED.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/linux/dmar.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 495df5e48f80..725204fc433e 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -30,6 +30,12 @@
struct acpi_dmar_header;
+#ifdef CONFIG_X86
+# define DMAR_UNITS_SUPPORTED MAX_IO_APICS
+#else
+# define DMAR_UNITS_SUPPORTED 64
+#endif
+
/* DMAR Flags */
#define DMAR_INTR_REMAP 0x1
#define DMAR_X2APIC_OPT_OUT 0x2
--
cgit v1.2.1
From 6b1972493a84f8fe13ff9d202745590f6c53d670 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sun, 9 Nov 2014 22:47:58 +0800
Subject: iommu/vt-d: Implement DMAR unit hotplug framework
On Intel platforms, an IO Hub (PCI/PCIe host bridge) may contain DMAR
units, so we need to support DMAR hotplug when supporting PCI host
bridge hotplug on Intel platforms.
According to Section 8.8 "Remapping Hardware Unit Hot Plug" in "Intel
Virtualization Technology for Directed IO Architecture Specification
Rev 2.2", ACPI BIOS should implement ACPI _DSM method under the ACPI
object for the PCI host bridge to support DMAR hotplug.
This patch introduces interfaces to parse ACPI _DSM method for
DMAR unit hotplug. It also implements state machines for DMAR unit
hot-addition and hot-removal.
The PCI host bridge hotplug driver should call dmar_hotplug_hotplug()
before scanning PCI devices connected for hot-addition and after
destroying all PCI devices for hot-removal.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
include/linux/dmar.h | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
(limited to 'include')
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 725204fc433e..30624954dec5 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -126,6 +126,8 @@ extern int dmar_remove_dev_scope(struct dmar_pci_notify_info *info,
/* Intel IOMMU detection */
extern int detect_intel_iommu(void);
extern int enable_drhd_fault_handling(void);
+extern int dmar_device_add(acpi_handle handle);
+extern int dmar_device_remove(acpi_handle handle);
static inline int dmar_res_noop(struct acpi_dmar_header *hdr, void *arg)
{
@@ -137,17 +139,48 @@ extern int iommu_detected, no_iommu;
extern int intel_iommu_init(void);
extern int dmar_parse_one_rmrr(struct acpi_dmar_header *header, void *arg);
extern int dmar_parse_one_atsr(struct acpi_dmar_header *header, void *arg);
+extern int dmar_check_one_atsr(struct acpi_dmar_header *hdr, void *arg);
+extern int dmar_release_one_atsr(struct acpi_dmar_header *hdr, void *arg);
+extern int dmar_iommu_hotplug(struct dmar_drhd_unit *dmaru, bool insert);
extern int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info);
#else /* !CONFIG_INTEL_IOMMU: */
static inline int intel_iommu_init(void) { return -ENODEV; }
+
#define dmar_parse_one_rmrr dmar_res_noop
#define dmar_parse_one_atsr dmar_res_noop
+#define dmar_check_one_atsr dmar_res_noop
+#define dmar_release_one_atsr dmar_res_noop
+
static inline int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info)
{
return 0;
}
+
+static inline int dmar_iommu_hotplug(struct dmar_drhd_unit *dmaru, bool insert)
+{
+ return 0;
+}
#endif /* CONFIG_INTEL_IOMMU */
+#ifdef CONFIG_IRQ_REMAP
+extern int dmar_ir_hotplug(struct dmar_drhd_unit *dmaru, bool insert);
+#else /* CONFIG_IRQ_REMAP */
+static inline int dmar_ir_hotplug(struct dmar_drhd_unit *dmaru, bool insert)
+{ return 0; }
+#endif /* CONFIG_IRQ_REMAP */
+
+#else /* CONFIG_DMAR_TABLE */
+
+static inline int dmar_device_add(void *handle)
+{
+ return 0;
+}
+
+static inline int dmar_device_remove(void *handle)
+{
+ return 0;
+}
+
#endif /* CONFIG_DMAR_TABLE */
struct irte {
--
cgit v1.2.1
From cc149f7ae2fa54b3d067527642146dde37977358 Mon Sep 17 00:00:00 2001
From: Peter Griffin <peter.griffin@linaro.org>
Date: Mon, 17 Nov 2014 17:47:00 +0100
Subject: ARM: STi: DT: STiH410: Add defines for STiH410 DT clocks
Although most clock outputs are the same as stih407 SoC, stih410
also has some additional new clock outputs.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
---
include/dt-bindings/clock/stih410-clks.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 include/dt-bindings/clock/stih410-clks.h
(limited to 'include')
diff --git a/include/dt-bindings/clock/stih410-clks.h b/include/dt-bindings/clock/stih410-clks.h
new file mode 100644
index 000000000000..2097a4bbe155
--- /dev/null
+++ b/include/dt-bindings/clock/stih410-clks.h
@@ -0,0 +1,25 @@
+/*
+ * This header provides constants clk index STMicroelectronics
+ * STiH410 SoC.
+ */
+#ifndef _DT_BINDINGS_CLK_STIH410
+#define _DT_BINDINGS_CLK_STIH410
+
+#include "stih407-clks.h"
+
+/* STiH410 introduces new clock outputs compared to STiH407 */
+
+/* CLOCKGEN C0 */
+#define CLK_TX_ICN_HADES 32
+#define CLK_RX_ICN_HADES 33
+#define CLK_ICN_REG_16 34
+#define CLK_PP_HADES 35
+#define CLK_CLUST_HADES 36
+#define CLK_HWPE_HADES 37
+#define CLK_FC_HADES 38
+
+/* CLOCKGEN D0 */
+#define CLK_PCMR10_MASTER 4
+#define CLK_USB2_PHY 5
+
+#endif
--
cgit v1.2.1
From 98e69016a11b2b9398bea668442193b3b362cd43 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 7 Nov 2014 16:45:12 +0800
Subject: can: dev: add can_is_canfd_skb() API
The CAN device drivers can use can_is_canfd_skb() to check if the frame to send
is on CAN FD mode or normal CAN mode.
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
include/linux/can/dev.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 6992afc6ba7f..b37ea95bc348 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -99,6 +99,12 @@ inval_skb:
return 1;
}
+static inline bool can_is_canfd_skb(const struct sk_buff *skb)
+{
+ /* the CAN specific type of skb is identified by its data length */
+ return skb->len == CANFD_MTU;
+}
+
/* get data length from can_dlc with sanitized can_dlc */
u8 can_dlc2len(u8 can_dlc);
--
cgit v1.2.1
From 336b8423e285174ebecf02a743d69913b83bbc48 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 10 Nov 2014 22:41:46 +0100
Subject: ASoC: Move AC'97 support to its own file
Currently the AC'97 support is splattered all throughout soc-core.c. Some
parts are #ifdef'd some parts are not. This patch moves the AC'97 support to
its own file, this should make the code a bit more clearer and also makes it
possible to easily not compile it into the kernel when not needed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 28 ++++++++++++++++++++++++++--
1 file changed, 26 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7ba7130037a0..adef34fa5209 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -366,8 +366,6 @@ struct snd_soc_jack_gpio;
typedef int (*hw_write_t)(void *,const char* ,int);
-extern struct snd_ac97_bus_ops *soc_ac97_ops;
-
enum snd_soc_pcm_subclass {
SND_SOC_PCM_CLASS_PCM = 0,
SND_SOC_PCM_CLASS_BE = 1,
@@ -500,6 +498,7 @@ int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg,
unsigned int mask, unsigned int value);
+#ifdef CONFIG_SND_SOC_AC97_BUS
int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
struct snd_ac97_bus_ops *ops, int num);
void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
@@ -508,6 +507,31 @@ int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
struct platform_device *pdev);
+extern struct snd_ac97_bus_ops *soc_ac97_ops;
+
+int snd_soc_ac97_register_dai_links(struct snd_soc_card *card);
+void snd_soc_ac97_add_pdata(struct snd_soc_pcm_runtime *rtd);
+#else
+
+static inline int snd_soc_ac97_register_dai_links(struct snd_soc_card *card)
+{
+ return 0;
+}
+
+static inline void snd_soc_ac97_add_pdata(struct snd_soc_pcm_runtime *rtd) {}
+
+static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
+ struct platform_device *pdev)
+{
+ return 0;
+}
+
+static inline int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
+{
+ return 0;
+}
+#endif
+
/*
*Controls
*/
--
cgit v1.2.1
From eda1a701fd9589b6ed15b109558bd4f6202e3829 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 10 Nov 2014 22:41:47 +0100
Subject: ASoC: ac97: Use static ac97_bus
We always pass soc_ac97_ops to snd_soc_new_ac97_codec(). So instead of
allocating a snd_ac97_bus in snd_soc_new_ac97_codec() just use a static one
that gets initialized when snd_soc_set_ac97_ops() is called.
Also drop the device number parameter from snd_soc_new_ac97_codec(). We
currently only support one device per bus and all drivers pass 0 for the
device number. And if we should ever support multiple devices per bus it
wouldn't be up to individual AC'97 device drivers to pick their number, but
rather either the AC'97 adapter driver or the core code will assign them.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index adef34fa5209..44b3ce531fd6 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -499,8 +499,7 @@ int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg,
unsigned int mask, unsigned int value);
#ifdef CONFIG_SND_SOC_AC97_BUS
-int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
- struct snd_ac97_bus_ops *ops, int num);
+int snd_soc_new_ac97_codec(struct snd_soc_codec *codec);
void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
--
cgit v1.2.1
From ca005f324ee38308b319c693f40523d959027acf Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 10 Nov 2014 22:41:49 +0100
Subject: ASoC: ac97: Drop support for setting platform data via the CPU DAI
This has no users since commit f0fba2ad1b6b ("ASoC: multi-component - ASoC
Multi-Component Support") which was almost 5 years ago. Given that this runs
after CODEC probe functions have been run it also doesn't seem to be that
useful.
So drop it altogether to make the code simpler.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dai.h | 1 -
include/sound/soc.h | 3 ---
2 files changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index e8b3080d196a..c0e04688c6ed 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -241,7 +241,6 @@ struct snd_soc_dai {
const char *name;
int id;
struct device *dev;
- void *ac97_pdata; /* platform_data for the ac97 codec */
/* driver ops */
struct snd_soc_dai_driver *driver;
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 44b3ce531fd6..5b4dec693ca5 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -509,7 +509,6 @@ int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
extern struct snd_ac97_bus_ops *soc_ac97_ops;
int snd_soc_ac97_register_dai_links(struct snd_soc_card *card);
-void snd_soc_ac97_add_pdata(struct snd_soc_pcm_runtime *rtd);
#else
static inline int snd_soc_ac97_register_dai_links(struct snd_soc_card *card)
@@ -517,8 +516,6 @@ static inline int snd_soc_ac97_register_dai_links(struct snd_soc_card *card)
return 0;
}
-static inline void snd_soc_ac97_add_pdata(struct snd_soc_pcm_runtime *rtd) {}
-
static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
struct platform_device *pdev)
{
--
cgit v1.2.1
From 6794f709b7124ff1e574c4f4c9494418ab56c4b4 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 10 Nov 2014 22:41:50 +0100
Subject: ASoC: ac97: Drop delayed device registration
We have all the information and dependencies we need to initialize and
register the device available in snd_soc_new_ac97_codec(). So there is no
need to delay the device registration until after the card itself as been
registered.
This makes the code significantly simpler and also makes it possible to use
the AC'97 device in the CODECs probe function. The later will be required to
be able to convert the AC'97 CODEC drivers to regmap.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 10 ----------
1 file changed, 10 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 5b4dec693ca5..206cc8d6eefa 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -507,15 +507,7 @@ int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
struct platform_device *pdev);
extern struct snd_ac97_bus_ops *soc_ac97_ops;
-
-int snd_soc_ac97_register_dai_links(struct snd_soc_card *card);
#else
-
-static inline int snd_soc_ac97_register_dai_links(struct snd_soc_card *card)
-{
- return 0;
-}
-
static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
struct platform_device *pdev)
{
@@ -808,8 +800,6 @@ struct snd_soc_codec {
struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
unsigned int cache_bypass:1; /* Suppress access to the cache */
unsigned int suspended:1; /* Codec is in suspend PM state */
- unsigned int ac97_registered:1; /* Codec has been AC97 registered */
- unsigned int ac97_created:1; /* Codec has been created by SoC */
unsigned int cache_init:1; /* codec cache has been initialized */
u32 cache_sync; /* Cache needs to be synced to hardware */
--
cgit v1.2.1
From bc2632140435cc84f9817f1c362479b23dbdfebc Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 10 Nov 2014 22:41:52 +0100
Subject: ASoC: Rename snd_soc_dai_driver struct ac97_control field to
bus_control
Setting the ac97_control field on a CPU DAI tells the ASoC core that this
DAI in addition to audio data also transports control data to the CODEC.
This causes the core to suspend the DAI after the CODEC and resume it before
the CODEC so communication to the CODEC is still possible. This is not
necessarily something that is specific to AC'97 and can be used by other
buses with the same requirement. This patch renames the flag from
ac97_control to bus_control to make this explicit.
While we are at it also change the type from int to bool.
The following semantich patch was used for automatic conversion of the
drivers:
// <smpl>
@@
identifier drv;
@@
struct snd_soc_dai_driver drv = {
- .ac97_control
+ .bus_control
=
- 1
+ true
};
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc-dai.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index c0e04688c6ed..a3738be45563 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -206,7 +206,6 @@ struct snd_soc_dai_driver {
/* DAI description */
const char *name;
unsigned int id;
- int ac97_control;
unsigned int base;
/* DAI driver callbacks */
@@ -216,6 +215,8 @@ struct snd_soc_dai_driver {
int (*resume)(struct snd_soc_dai *dai);
/* compress dai */
bool compress_dai;
+ /* DAI is also used for the control bus */
+ bool bus_control;
/* ops */
const struct snd_soc_dai_ops *ops;
--
cgit v1.2.1
From 358a8bb5628420529e4f0b77068155ca8fa8973b Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 10 Nov 2014 22:41:53 +0100
Subject: ASoC: ac97: Push snd_ac97 pointer to the driver level
Now that the ASoC core no longer needs a handle to the AC'97 device that is
associated with a CODEC we can remove it from the snd_soc_codec struct and
push it into the individual driver state structs like we do for other
communication buses. Doing so creates a clean separation between the AC'97
bus support and the ASoC core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 206cc8d6eefa..9e513ae11749 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -499,8 +499,8 @@ int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg,
unsigned int mask, unsigned int value);
#ifdef CONFIG_SND_SOC_AC97_BUS
-int snd_soc_new_ac97_codec(struct snd_soc_codec *codec);
-void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
+struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec);
+void snd_soc_free_ac97_codec(struct snd_ac97 *ac97);
int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
@@ -797,7 +797,6 @@ struct snd_soc_codec {
struct list_head card_list;
/* runtime */
- struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
unsigned int cache_bypass:1; /* Suppress access to the cache */
unsigned int suspended:1; /* Codec is in suspend PM state */
unsigned int cache_init:1; /* codec cache has been initialized */
--
cgit v1.2.1
From 53a4ab96c61a34d62717b1481f6043e0b4338d74 Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@gmail.com>
Date: Wed, 12 Nov 2014 12:54:01 -0800
Subject: of: Change of_device_is_available() to return bool
This function can only return true or false; using a bool makes it more
obvious to the reader.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 3c851a8f23eb..27635c89d8c2 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -276,7 +276,7 @@ extern int of_property_read_string_helper(struct device_node *np,
const char **out_strs, size_t sz, int index);
extern int of_device_is_compatible(const struct device_node *device,
const char *);
-extern int of_device_is_available(const struct device_node *device);
+extern bool of_device_is_available(const struct device_node *device);
extern const void *of_get_property(const struct device_node *node,
const char *name,
int *lenp);
@@ -427,9 +427,9 @@ static inline int of_device_is_compatible(const struct device_node *device,
return 0;
}
-static inline int of_device_is_available(const struct device_node *device)
+static inline bool of_device_is_available(const struct device_node *device)
{
- return 0;
+ return false;
}
static inline struct property *of_find_property(const struct device_node *np,
--
cgit v1.2.1
From 3274f52073d88b62f3c5ace82ae9d48546232e72 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Thu, 13 Nov 2014 17:36:44 -0800
Subject: bpf: add 'flags' attribute to BPF_MAP_UPDATE_ELEM command
the current meaning of BPF_MAP_UPDATE_ELEM syscall command is:
either update existing map element or create a new one.
Initially the plan was to add a new command to handle the case of
'create new element if it didn't exist', but 'flags' style looks
cleaner and overall diff is much smaller (more code reused), so add 'flags'
attribute to BPF_MAP_UPDATE_ELEM command with the following meaning:
#define BPF_ANY 0 /* create new element or update existing */
#define BPF_NOEXIST 1 /* create new element if it didn't exist */
#define BPF_EXIST 2 /* update existing element */
bpf_update_elem(fd, key, value, BPF_NOEXIST) call can fail with EEXIST
if element already exists.
bpf_update_elem(fd, key, value, BPF_EXIST) can fail with ENOENT
if element doesn't exist.
Userspace will call it as:
int bpf_update_elem(int fd, void *key, void *value, __u64 flags)
{
union bpf_attr attr = {
.map_fd = fd,
.key = ptr_to_u64(key),
.value = ptr_to_u64(value),
.flags = flags;
};
return bpf(BPF_MAP_UPDATE_ELEM, &attr, sizeof(attr));
}
First two bits of 'flags' are used to encode style of bpf_update_elem() command.
Bits 2-63 are reserved for future use.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/bpf.h | 2 +-
include/uapi/linux/bpf.h | 8 +++++++-
2 files changed, 8 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 3cf91754a957..51e9242e4803 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -22,7 +22,7 @@ struct bpf_map_ops {
/* funcs callable from userspace and from eBPF programs */
void *(*map_lookup_elem)(struct bpf_map *map, void *key);
- int (*map_update_elem)(struct bpf_map *map, void *key, void *value);
+ int (*map_update_elem)(struct bpf_map *map, void *key, void *value, u64 flags);
int (*map_delete_elem)(struct bpf_map *map, void *key);
};
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index d18316f9e9c4..3e9e1b77f29d 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -82,7 +82,7 @@ enum bpf_cmd {
/* create or update key/value pair in a given map
* err = bpf(BPF_MAP_UPDATE_ELEM, union bpf_attr *attr, u32 size)
- * Using attr->map_fd, attr->key, attr->value
+ * Using attr->map_fd, attr->key, attr->value, attr->flags
* returns zero or negative error
*/
BPF_MAP_UPDATE_ELEM,
@@ -117,6 +117,11 @@ enum bpf_prog_type {
BPF_PROG_TYPE_UNSPEC,
};
+/* flags for BPF_MAP_UPDATE_ELEM command */
+#define BPF_ANY 0 /* create new element or update existing */
+#define BPF_NOEXIST 1 /* create new element if it didn't exist */
+#define BPF_EXIST 2 /* update existing element */
+
union bpf_attr {
struct { /* anonymous struct used by BPF_MAP_CREATE command */
__u32 map_type; /* one of enum bpf_map_type */
@@ -132,6 +137,7 @@ union bpf_attr {
__aligned_u64 value;
__aligned_u64 next_key;
};
+ __u64 flags;
};
struct { /* anonymous struct used by BPF_PROG_LOAD command */
--
cgit v1.2.1
From 0f8e4bd8a1fc8c4185f1630061d0a1f2d197a475 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Thu, 13 Nov 2014 17:36:45 -0800
Subject: bpf: add hashtable type of eBPF maps
add new map type BPF_MAP_TYPE_HASH and its implementation
- maps are created/destroyed by userspace. Both userspace and eBPF programs
can lookup/update/delete elements from the map
- eBPF programs can be called in_irq(), so use spin_lock_irqsave() mechanism
for concurrent updates
- key/value are opaque range of bytes (aligned to 8 bytes)
- user space provides 3 configuration attributes via BPF syscall:
key_size, value_size, max_entries
- map takes care of allocating/freeing key/value pairs
- map_update_elem() must fail to insert new element when max_entries
limit is reached to make sure that eBPF programs cannot exhaust memory
- map_update_elem() replaces elements in an atomic way
- optimized for speed of lookup() which can be called multiple times from
eBPF program which itself is triggered by high volume of events
. in the future JIT compiler may recognize lookup() call and optimize it
further, since key_size is constant for life of eBPF program
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/bpf.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 3e9e1b77f29d..03a01fd609aa 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -111,6 +111,7 @@ enum bpf_cmd {
enum bpf_map_type {
BPF_MAP_TYPE_UNSPEC,
+ BPF_MAP_TYPE_HASH,
};
enum bpf_prog_type {
--
cgit v1.2.1
From 28fbcfa08d8ed7c5a50d41a0433aad222835e8e3 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Thu, 13 Nov 2014 17:36:46 -0800
Subject: bpf: add array type of eBPF maps
add new map type BPF_MAP_TYPE_ARRAY and its implementation
- optimized for fastest possible lookup()
. in the future verifier/JIT may recognize lookup() with constant key
and optimize it into constant pointer. Can optimize non-constant
key into direct pointer arithmetic as well, since pointers and
value_size are constant for the life of the eBPF program.
In other words array_map_lookup_elem() may be 'inlined' by verifier/JIT
while preserving concurrent access to this map from user space
- two main use cases for array type:
. 'global' eBPF variables: array of 1 element with key=0 and value is a
collection of 'global' variables which programs can use to keep the state
between events
. aggregation of tracing events into fixed set of buckets
- all array elements pre-allocated and zero initialized at init time
- key as an index in array and can only be 4 byte
- map_delete_elem() returns EINVAL, since elements cannot be deleted
- map_update_elem() replaces elements in an non-atomic way
(for atomic updates hashtable type should be used instead)
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/bpf.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 03a01fd609aa..0d662fe75df5 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -112,6 +112,7 @@ enum bpf_cmd {
enum bpf_map_type {
BPF_MAP_TYPE_UNSPEC,
BPF_MAP_TYPE_HASH,
+ BPF_MAP_TYPE_ARRAY,
};
enum bpf_prog_type {
--
cgit v1.2.1
From d0003ec01c667b731c139e23de3306a8b328ccf5 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Thu, 13 Nov 2014 17:36:49 -0800
Subject: bpf: allow eBPF programs to use maps
expose bpf_map_lookup_elem(), bpf_map_update_elem(), bpf_map_delete_elem()
map accessors to eBPF programs
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/bpf.h | 5 +++++
include/uapi/linux/bpf.h | 3 +++
2 files changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 51e9242e4803..75e94eaa228b 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -133,4 +133,9 @@ struct bpf_prog *bpf_prog_get(u32 ufd);
/* verify correctness of eBPF program */
int bpf_check(struct bpf_prog *fp, union bpf_attr *attr);
+/* verifier prototypes for helper functions called from eBPF programs */
+extern struct bpf_func_proto bpf_map_lookup_elem_proto;
+extern struct bpf_func_proto bpf_map_update_elem_proto;
+extern struct bpf_func_proto bpf_map_delete_elem_proto;
+
#endif /* _LINUX_BPF_H */
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 0d662fe75df5..4a3d0f84f178 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -158,6 +158,9 @@ union bpf_attr {
*/
enum bpf_func_id {
BPF_FUNC_unspec,
+ BPF_FUNC_map_lookup_elem, /* void *map_lookup_elem(&map, &key) */
+ BPF_FUNC_map_update_elem, /* int map_update_elem(&map, &key, &value, flags) */
+ BPF_FUNC_map_delete_elem, /* int map_delete_elem(&map, &key) */
__BPF_FUNC_MAX_ID,
};
--
cgit v1.2.1
From e3e3217029a35c579bf100998b43976d0b1cb8d7 Mon Sep 17 00:00:00 2001
From: Rick Jones <rick.jones2@hp.com>
Date: Mon, 17 Nov 2014 14:04:29 -0800
Subject: icmp: Remove some spurious dropped packet profile hits from the ICMP
path
If icmp_rcv() has successfully processed the incoming ICMP datagram, we
should use consume_skb() rather than kfree_skb() because a hit on the likes
of perf -e skb:kfree_skb is not called-for.
Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ping.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ping.h b/include/net/ping.h
index 026479b61a2d..f074060bc5de 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -82,7 +82,7 @@ int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
size_t len);
int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
-void ping_rcv(struct sk_buff *skb);
+bool ping_rcv(struct sk_buff *skb);
#ifdef CONFIG_PROC_FS
struct ping_seq_afinfo {
--
cgit v1.2.1
From 11bf7828a59880427403e13dcff8228d67e9e0f7 Mon Sep 17 00:00:00 2001
From: Joe Stringer <joestringer@nicira.com>
Date: Mon, 17 Nov 2014 16:24:54 -0800
Subject: vxlan: Inline vxlan_gso_check().
Suggested-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/vxlan.h | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index afadf8e53f20..57cccd0052e5 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -8,6 +8,12 @@
#define VNI_HASH_BITS 10
#define VNI_HASH_SIZE (1<<VNI_HASH_BITS)
+/* VXLAN protocol header */
+struct vxlanhdr {
+ __be32 vx_flags;
+ __be32 vx_vni;
+};
+
struct vxlan_sock;
typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key);
@@ -45,7 +51,17 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
__be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
__be16 src_port, __be16 dst_port, __be32 vni, bool xnet);
-bool vxlan_gso_check(struct sk_buff *skb);
+static inline bool vxlan_gso_check(struct sk_buff *skb)
+{
+ if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) &&
+ (skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
+ skb->inner_protocol != htons(ETH_P_TEB) ||
+ (skb_inner_mac_header(skb) - skb_transport_header(skb) !=
+ sizeof(struct udphdr) + sizeof(struct vxlanhdr))))
+ return false;
+
+ return true;
+}
/* IP header + UDP + VXLAN + Ethernet header */
#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
--
cgit v1.2.1
From 3e58a5424c8325df8b62f1de175dc95c7373bfe1 Mon Sep 17 00:00:00 2001
From: Kouei Abe <kouei.abe.cp@renesas.com>
Date: Wed, 12 Nov 2014 17:55:56 +0900
Subject: ARM: shmobile: r8a7794: Add SGX clock to device tree
Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7794-clock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7794-clock.h b/include/dt-bindings/clock/r8a7794-clock.h
index fd7cdee6a666..9066213f5a96 100644
--- a/include/dt-bindings/clock/r8a7794-clock.h
+++ b/include/dt-bindings/clock/r8a7794-clock.h
@@ -27,6 +27,7 @@
/* MSTP1 */
#define R8A7794_CLK_TMU1 11
+#define R8A7794_CLK_3DG 12
#define R8A7794_CLK_TMU3 21
#define R8A7794_CLK_TMU2 22
#define R8A7794_CLK_CMT0 24
--
cgit v1.2.1
From dc3cf93d89c525dcaebf4460109196fd9752c706 Mon Sep 17 00:00:00 2001
From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Date: Wed, 12 Nov 2014 17:55:57 +0900
Subject: ARM: shmobile: r8a7794: Add MMP and VSP1 clocks to device tree
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
include/dt-bindings/clock/r8a7794-clock.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/r8a7794-clock.h b/include/dt-bindings/clock/r8a7794-clock.h
index 9066213f5a96..aa9c286e60c0 100644
--- a/include/dt-bindings/clock/r8a7794-clock.h
+++ b/include/dt-bindings/clock/r8a7794-clock.h
@@ -26,12 +26,18 @@
#define R8A7794_CLK_MSIOF0 0
/* MSTP1 */
+#define R8A7794_CLK_VCP0 1
+#define R8A7794_CLK_VPC0 3
#define R8A7794_CLK_TMU1 11
#define R8A7794_CLK_3DG 12
+#define R8A7794_CLK_2DDMAC 15
+#define R8A7794_CLK_FDP1_0 19
#define R8A7794_CLK_TMU3 21
#define R8A7794_CLK_TMU2 22
#define R8A7794_CLK_CMT0 24
#define R8A7794_CLK_TMU0 25
+#define R8A7794_CLK_VSP1_DU0 28
+#define R8A7794_CLK_VSP1_S 31
/* MSTP2 */
#define R8A7794_CLK_SCIFA2 2
--
cgit v1.2.1
From 22853223d15b3a626de62cf9e40ce2d3881bc0a8 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Tue, 18 Nov 2014 19:45:51 +0100
Subject: regmap: ac97: Add generic AC'97 callbacks
Use the recently added support for bus operations to provide a standard
mapping for AC'97 register I/O.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
include/linux/regmap.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index c5ed83f49c4e..4419b99d8d6e 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -27,6 +27,7 @@ struct spmi_device;
struct regmap;
struct regmap_range_cfg;
struct regmap_field;
+struct snd_ac97;
/* An enum of all the supported cache types */
enum regcache_type {
@@ -340,6 +341,8 @@ struct regmap *regmap_init_spmi_ext(struct spmi_device *dev,
struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id,
void __iomem *regs,
const struct regmap_config *config);
+struct regmap *regmap_init_ac97(struct snd_ac97 *ac97,
+ const struct regmap_config *config);
struct regmap *devm_regmap_init(struct device *dev,
const struct regmap_bus *bus,
@@ -356,6 +359,10 @@ struct regmap *devm_regmap_init_spmi_ext(struct spmi_device *dev,
struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id,
void __iomem *regs,
const struct regmap_config *config);
+struct regmap *devm_regmap_init_ac97(struct snd_ac97 *ac97,
+ const struct regmap_config *config);
+
+bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
/**
* regmap_init_mmio(): Initialise register map
--
cgit v1.2.1
From 20feb881988cdf5f53304c355ae8ee3bf82e80ec Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 18 Nov 2014 19:45:52 +0100
Subject: ASoC: Add helper functions for deferred regmap setup
Some drivers (most notably the AC'97 drivers) do not have access to their
regmap struct when the component/codec is registered. For those drivers the
automatic regmap setup will not work and needs to be done manually,
typically from the component/CODEC drivers probe callback.
This patch adds a set of helper function to handle deferred regmap
initialization as well as early regmap tear-down.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7ba7130037a0..342b43b3799e 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1277,6 +1277,41 @@ void snd_soc_component_async_complete(struct snd_soc_component *component);
int snd_soc_component_test_bits(struct snd_soc_component *component,
unsigned int reg, unsigned int mask, unsigned int value);
+void snd_soc_component_init_regmap(struct snd_soc_component *component,
+ struct regmap *regmap);
+void snd_soc_component_exit_regmap(struct snd_soc_component *component);
+
+/**
+ * snd_soc_codec_init_regmap() - Initialize regmap instance for the CODEC
+ * @codec: The CODEC for which to initialize the regmap instance
+ * @regmap: The regmap instance that should be used by the CODEC
+ *
+ * This function allows deferred assignment of the regmap instance that is
+ * associated with the CODEC. Only use this if the regmap instance is not yet
+ * ready when the CODEC is registered. The function must also be called before
+ * the first IO attempt of the CODEC.
+ */
+static inline void snd_soc_codec_init_regmap(struct snd_soc_codec *codec,
+ struct regmap *regmap)
+{
+ snd_soc_component_init_regmap(&codec->component, regmap);
+}
+
+/**
+ * snd_soc_codec_exit_regmap() - De-initialize regmap instance for the CODEC
+ * @codec: The CODEC for which to de-initialize the regmap instance
+ *
+ * Calls regmap_exit() on the regmap instance associated to the CODEC and
+ * removes the regmap instance from the CODEC.
+ *
+ * This function should only be used if snd_soc_codec_init_regmap() was used to
+ * initialize the regmap instance.
+ */
+static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec)
+{
+ snd_soc_component_exit_regmap(&codec->component);
+}
+
/* device driver data */
static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
--
cgit v1.2.1
From 62e88b1c00de9cb30d937841ed5debed871070b8 Mon Sep 17 00:00:00 2001
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: Tue, 18 Nov 2014 10:23:50 -0800
Subject: mm: Make arch_unmap()/bprm_mm_init() available to all architectures
The x86 MPX patch set calls arch_unmap() and arch_bprm_mm_init()
from fs/exec.c, so we need at least a stub for them in all
architectures. They are only called under an #ifdef for
CONFIG_MMU=y, so we can at least restict this to architectures
with MMU support.
blackfin/c6x have no MMU support, so do not call arch_unmap().
They also do not include mm_hooks.h or mmu_context.h at all and
do not need to be touched.
s390, um and unicore32 do not use asm-generic/mm_hooks.h, so got
their own arch_unmap() versions. (I also moved um's
arch_dup_mmap() to be closer to the other mm_hooks.h functions).
xtensa only includes mm_hooks when MMU=y, which should be fine
since arch_unmap() is called only from MMU=y code.
For the rest, we use the stub copies of these functions in
asm-generic/mm_hook.h.
I cross compiled defconfigs for cris (to check NOMMU) and s390
to make sure that this works. I also checked a 64-bit build
of UML and all my normal x86 builds including PARAVIRT on and
off.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20141118182350.8B4AA2C2@viggo.jf.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/asm-generic/mm_hooks.h | 17 ++++++++++++++---
include/asm-generic/mmu_context.h | 6 ------
2 files changed, 14 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/mm_hooks.h b/include/asm-generic/mm_hooks.h
index 67dea8123683..866aa461efa5 100644
--- a/include/asm-generic/mm_hooks.h
+++ b/include/asm-generic/mm_hooks.h
@@ -1,7 +1,7 @@
/*
- * Define generic no-op hooks for arch_dup_mmap and arch_exit_mmap, to
- * be included in asm-FOO/mmu_context.h for any arch FOO which doesn't
- * need to hook these.
+ * Define generic no-op hooks for arch_dup_mmap, arch_exit_mmap
+ * and arch_unmap to be included in asm-FOO/mmu_context.h for any
+ * arch FOO which doesn't need to hook these.
*/
#ifndef _ASM_GENERIC_MM_HOOKS_H
#define _ASM_GENERIC_MM_HOOKS_H
@@ -15,4 +15,15 @@ static inline void arch_exit_mmap(struct mm_struct *mm)
{
}
+static inline void arch_unmap(struct mm_struct *mm,
+ struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)
+{
+}
+
+static inline void arch_bprm_mm_init(struct mm_struct *mm,
+ struct vm_area_struct *vma)
+{
+}
+
#endif /* _ASM_GENERIC_MM_HOOKS_H */
diff --git a/include/asm-generic/mmu_context.h b/include/asm-generic/mmu_context.h
index aa2d8ba35b20..1f2a8f9c9264 100644
--- a/include/asm-generic/mmu_context.h
+++ b/include/asm-generic/mmu_context.h
@@ -47,10 +47,4 @@ static inline void arch_bprm_mm_init(struct mm_struct *mm,
{
}
-static inline void arch_unmap(struct mm_struct *mm,
- struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
-}
-
#endif /* __ASM_GENERIC_MMU_CONTEXT_H */
--
cgit v1.2.1
From 0378b59770130a994272b176a2a4346dc27361e9 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 19 Nov 2014 15:22:22 +0200
Subject: Bluetooth: Convert link keys list to use RCU
This patch converts the hdev->link_keys list to be protected through
RCU, thereby eliminating the need to hold the hdev lock while accessing
the list.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index a805b3d97c0b..396c09840fdf 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -130,6 +130,7 @@ struct smp_irk {
struct link_key {
struct list_head list;
+ struct rcu_head rcu;
bdaddr_t bdaddr;
u8 type;
u8 val[HCI_LINK_KEY_SIZE];
--
cgit v1.2.1
From d67ee213fa5700c7da526fe5bcccd485cfa63d8b Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Tue, 28 Oct 2014 20:13:31 -0400
Subject: dm: add presuspend_undo hook to target_type
The DM thin-pool target now must undo the changes performed during
pool_presuspend() so introduce presuspend_undo hook in target_type.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
---
include/linux/device-mapper.h | 2 ++
include/uapi/linux/dm-ioctl.h | 4 ++--
2 files changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index e1707de043ae..ca6d2acc5eb7 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -64,6 +64,7 @@ typedef int (*dm_request_endio_fn) (struct dm_target *ti,
union map_info *map_context);
typedef void (*dm_presuspend_fn) (struct dm_target *ti);
+typedef void (*dm_presuspend_undo_fn) (struct dm_target *ti);
typedef void (*dm_postsuspend_fn) (struct dm_target *ti);
typedef int (*dm_preresume_fn) (struct dm_target *ti);
typedef void (*dm_resume_fn) (struct dm_target *ti);
@@ -145,6 +146,7 @@ struct target_type {
dm_endio_fn end_io;
dm_request_endio_fn rq_end_io;
dm_presuspend_fn presuspend;
+ dm_presuspend_undo_fn presuspend_undo;
dm_postsuspend_fn postsuspend;
dm_preresume_fn preresume;
dm_resume_fn resume;
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
index 3315ab21f728..2be66f4be2f9 100644
--- a/include/uapi/linux/dm-ioctl.h
+++ b/include/uapi/linux/dm-ioctl.h
@@ -267,9 +267,9 @@ enum {
#define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
#define DM_VERSION_MAJOR 4
-#define DM_VERSION_MINOR 28
+#define DM_VERSION_MINOR 29
#define DM_VERSION_PATCHLEVEL 0
-#define DM_VERSION_EXTRA "-ioctl (2014-09-17)"
+#define DM_VERSION_EXTRA "-ioctl (2014-10-28)"
/* Status bits */
#define DM_READONLY_FLAG (1 << 0) /* In/Out */
--
cgit v1.2.1
From ffcc39364160663cda1a3c358f4537302a92459b Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Tue, 28 Oct 2014 18:34:52 -0400
Subject: dm: enhance internal suspend and resume interface
Rename dm_internal_{suspend,resume} to dm_internal_{suspend,resume}_fast
-- dm-stats will continue using these methods to avoid all the extra
suspend/resume logic that is not needed in order to quickly flush IO.
Introduce dm_internal_suspend_noflush() variant that actually calls the
mapped_device's target callbacks -- otherwise target-specific hooks are
avoided (e.g. dm-thin's thin_presuspend and thin_postsuspend). Common
code between dm_internal_{suspend_noflush,resume} and
dm_{suspend,resume} was factored out as __dm_{suspend,resume}.
Update dm_internal_{suspend_noflush,resume} to always take and release
the mapped_device's suspend_lock. Also update dm_{suspend,resume} to be
aware of potential for DM_INTERNAL_SUSPEND_FLAG to be set and respond
accordingly by interruptibly waiting for the DM_INTERNAL_SUSPEND_FLAG to
be cleared. Add lockdep annotation to dm_suspend() and dm_resume().
The existing DM_SUSPEND_FLAG remains unchanged.
DM_INTERNAL_SUSPEND_FLAG is set by dm_internal_suspend_noflush() and
cleared by dm_internal_resume().
Both DM_SUSPEND_FLAG and DM_INTERNAL_SUSPEND_FLAG may be set if a device
was already suspended when dm_internal_suspend_noflush() was called --
this can be thought of as a "nested suspend". A "nested suspend" can
occur with legacy userspace dm-thin code that might suspend all active
thin volumes before suspending the pool for resize.
But otherwise, in the normal dm-thin-pool suspend case moving forward:
the thin-pool will have DM_SUSPEND_FLAG set and all active thins from
that thin-pool will have DM_INTERNAL_SUSPEND_FLAG set.
Also add DM_INTERNAL_SUSPEND_FLAG to status report. This new
DM_INTERNAL_SUSPEND_FLAG state is being reported to assist with
debugging (e.g. 'dmsetup info' will report an internally suspended
device accordingly).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
---
include/uapi/linux/dm-ioctl.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
index 2be66f4be2f9..a570d7b5796c 100644
--- a/include/uapi/linux/dm-ioctl.h
+++ b/include/uapi/linux/dm-ioctl.h
@@ -352,4 +352,9 @@ enum {
*/
#define DM_DEFERRED_REMOVE (1 << 17) /* In/Out */
+/*
+ * If set, the device is suspended internally.
+ */
+#define DM_INTERNAL_SUSPEND_FLAG (1 << 18) /* Out */
+
#endif /* _LINUX_DM_IOCTL_H */
--
cgit v1.2.1
From 1277b4a9f531e84e26f9e0210c1801b0c0bf81ca Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Sun, 9 Nov 2014 18:50:08 +0200
Subject: mac80211: retransmit TDLS teardown packet through AP if not ACKed
Since the TDLS peer station might not receive the teardown
packet (e.g., when in PS), this makes sure the packet is
retransmitted - this time through the AP - if the TDLS peer
didn't ACK the packet.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index f65b5446d983..4e2bb9107878 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -19,6 +19,7 @@
#include <linux/types.h>
#include <linux/if_ether.h>
#include <asm/byteorder.h>
+#include <asm/unaligned.h>
/*
* DS bit usage
@@ -2418,6 +2419,30 @@ static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
return !!(tim->virtual_map[index] & mask);
}
+/**
+ * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
+ * @skb: the skb containing the frame, length will not be checked
+ * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
+ *
+ * This function assumes the frame is a data frame, and that the network header
+ * is in the correct place.
+ */
+static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
+{
+ if (!skb_is_nonlinear(skb) &&
+ skb->len > (skb_network_offset(skb) + 2)) {
+ /* Point to where the indication of TDLS should start */
+ const u8 *tdls_data = skb_network_header(skb) - 2;
+
+ if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
+ tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
+ tdls_data[3] == WLAN_CATEGORY_TDLS)
+ return tdls_data[4];
+ }
+
+ return -1;
+}
+
/* convert time units */
#define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
#define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
--
cgit v1.2.1
From 2cedd87960a809dd9bf683f72123b7dce6736f07 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Sun, 9 Nov 2014 18:50:13 +0200
Subject: mac80211: add BSS coex IE to TDLS setup frames
Add the BSS coex IE in case we support HT40 channels, as mandated by
section 8.5.13 in IEEE802.11 2012.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 4e2bb9107878..adac1be67387 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2037,6 +2037,9 @@ enum ieee80211_tdls_actioncode {
/* TDLS specific payload type in the LLC/SNAP header */
#define WLAN_TDLS_SNAP_RFTYPE 0x2
+/* BSS Coex IE information field bits */
+#define WLAN_BSS_COEX_INFORMATION_REQUEST BIT(0)
+
/**
* enum - mesh synchronization method identifier
*
--
cgit v1.2.1
From 78632a17eaa7a5abdc22aac8ca5932d6cad59984 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Sun, 9 Nov 2014 18:50:14 +0200
Subject: cfg/mac80211: define TDLS channel switch feature bit
Define some related TDLS protocol constants and advertise channel switch
support in the extended-capabilities IE when the feature bit is defined.
Actually supporting TDLS channel-switching also requires support for
some new nl80211 commands, to be introduced by future patches.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 6 ++++++
include/uapi/linux/nl80211.h | 3 +++
2 files changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index adac1be67387..fbb02d240658 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2019,6 +2019,11 @@ enum ieee80211_tdls_actioncode {
*/
#define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2)
+/* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
+#define WLAN_EXT_CAPA4_TDLS_BUFFER_STA BIT(4)
+#define WLAN_EXT_CAPA4_TDLS_PEER_PSM BIT(5)
+#define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH BIT(6)
+
/* Interworking capabilities are set in 7th bit of 4th byte of the
* @WLAN_EID_EXT_CAPABILITY information element
*/
@@ -2030,6 +2035,7 @@ enum ieee80211_tdls_actioncode {
*/
#define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5)
#define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6)
+#define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED BIT(7)
#define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(6)
#define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED BIT(7)
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 442369f69b4f..ccdeef28d672 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4095,6 +4095,8 @@ enum nl80211_ap_sme_features {
* @NL80211_FEATURE_MAC_ON_CREATE: Device supports configuring
* the vif's MAC address upon creation.
* See 'macaddr' field in the vif_params (cfg80211.h).
+ * @NL80211_FEATURE_TDLS_CHANNEL_SWITCH: Driver supports channel switching when
+ * operating as a TDLS peer.
*/
enum nl80211_feature_flags {
NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
@@ -4125,6 +4127,7 @@ enum nl80211_feature_flags {
NL80211_FEATURE_DYNAMIC_SMPS = 1 << 25,
NL80211_FEATURE_SUPPORTS_WMM_ADMISSION = 1 << 26,
NL80211_FEATURE_MAC_ON_CREATE = 1 << 27,
+ NL80211_FEATURE_TDLS_CHANNEL_SWITCH = 1 << 28,
};
/**
--
cgit v1.2.1
From 1057d35ede5dbf7ed7842357564fb42c9b54ba50 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Wed, 19 Nov 2014 12:54:26 +0200
Subject: cfg80211: introduce TDLS channel switch commands
Introduce commands to initiate and cancel TDLS channel-switching. Once
TDLS channel-switching is started, the lower level driver is responsible
for continually initiating channel-switch operations and returning to
the base (AP) channel to listen for beacons from time to time.
Upon cancellation of the channel-switch all communication between the
relevant TDLS peers will continue on the base channel.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 14 ++++++++++++++
include/uapi/linux/nl80211.h | 19 +++++++++++++++++++
2 files changed, 33 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 220d5f5f1aca..8d04dfef32bf 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2367,6 +2367,12 @@ struct cfg80211_qos_map {
* (invoked with the wireless_dev mutex held)
* @leave_ocb: leave the current OCB network
* (invoked with the wireless_dev mutex held)
+ *
+ * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
+ * is responsible for continually initiating channel-switching operations
+ * and returning to the base channel for communication with the AP.
+ * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
+ * peers must be on the base channel when the call completes.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -2622,6 +2628,14 @@ struct cfg80211_ops {
u16 admitted_time);
int (*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev,
u8 tsid, const u8 *peer);
+
+ int (*tdls_channel_switch)(struct wiphy *wiphy,
+ struct net_device *dev,
+ const u8 *addr, u8 oper_class,
+ struct cfg80211_chan_def *chandef);
+ void (*tdls_cancel_channel_switch)(struct wiphy *wiphy,
+ struct net_device *dev,
+ const u8 *addr);
};
/*
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index ccdeef28d672..365db67ca71d 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -762,6 +762,18 @@
* @NL80211_CMD_LEAVE_OCB: Leave the OCB network -- no special arguments, the
* network is determined by the network interface.
*
+ * @NL80211_CMD_TDLS_CHANNEL_SWITCH: Start channel-switching with a TDLS peer,
+ * identified by the %NL80211_ATTR_MAC parameter. A target channel is
+ * provided via %NL80211_ATTR_WIPHY_FREQ and other attributes determining
+ * channel width/type. The target operating class is given via
+ * %NL80211_ATTR_OPER_CLASS.
+ * The driver is responsible for continually initiating channel-switching
+ * operations and returning to the base channel for communication with the
+ * AP.
+ * @NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH: Stop channel-switching with a TDLS
+ * peer given by %NL80211_ATTR_MAC. Both peers must be on the base channel
+ * when this command completes.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -943,6 +955,9 @@ enum nl80211_commands {
NL80211_CMD_CH_SWITCH_STARTED_NOTIFY,
+ NL80211_CMD_TDLS_CHANNEL_SWITCH,
+ NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -1669,6 +1684,8 @@ enum nl80211_commands {
* @NL80211_ATTR_SMPS_MODE: SMPS mode to use (ap mode). see
* &enum nl80211_smps_mode.
*
+ * @NL80211_ATTR_OPER_CLASS: operating class
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -2021,6 +2038,8 @@ enum nl80211_attrs {
NL80211_ATTR_SMPS_MODE,
+ NL80211_ATTR_OPER_CLASS,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
--
cgit v1.2.1
From 53837584438f8899e061ada4663ae1d09b49b96a Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Sun, 9 Nov 2014 18:50:18 +0200
Subject: mac80211: add parsing of TDLS specific IEs
These are used in TDLS channel switching code.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/linux/ieee80211.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index fbb02d240658..4f4eea8a6288 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1067,6 +1067,12 @@ struct ieee80211_pspoll {
/* TDLS */
+/* Channel switch timing */
+struct ieee80211_ch_switch_timing {
+ __le16 switch_time;
+ __le16 switch_timeout;
+} __packed;
+
/* Link-id information element */
struct ieee80211_tdls_lnkie {
u8 ie_type; /* Link Identifier IE */
@@ -1108,6 +1114,15 @@ struct ieee80211_tdls_data {
u8 dialog_token;
u8 variable[0];
} __packed discover_req;
+ struct {
+ u8 target_channel;
+ u8 oper_class;
+ u8 variable[0];
+ } __packed chan_switch_req;
+ struct {
+ __le16 status_code;
+ u8 variable[0];
+ } __packed chan_switch_resp;
} u;
} __packed;
--
cgit v1.2.1
From a7a6bdd0670feb8bfc26d41cda32b6064dbca50e Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Sun, 9 Nov 2014 18:50:19 +0200
Subject: mac80211: introduce TDLS channel switch ops
Implement the cfg80211 TDLS channel switch ops and introduce new mac80211
ones for low-level drivers.
Verify low-level driver support for the new ops when using the relevant
wiphy feature bit. Also verify the peer supports channel switching before
passing the command down.
Add a new STA flag to track the off-channel state with the TDLS peer and
make sure to cancel the channel-switch if the peer STA is unexpectedly
removed.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 83232aa2f077..fdedceb7adcb 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2915,6 +2915,16 @@ enum ieee80211_reconfig_type {
*
* @get_txpower: get current maximum tx power (in dBm) based on configuration
* and hardware limits.
+ *
+ * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
+ * is responsible for continually initiating channel-switching operations
+ * and returning to the base channel for communication with the AP. The
+ * driver receives a channel-switch request template and the location of
+ * the switch-timing IE within the template as part of the invocation.
+ * The template is valid only within the call, and the driver can
+ * optionally copy the skb for further re-use.
+ * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
+ * peers must be on the base channel when the call completes.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,
@@ -3126,6 +3136,15 @@ struct ieee80211_ops {
u32 (*get_expected_throughput)(struct ieee80211_sta *sta);
int (*get_txpower)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
int *dbm);
+
+ int (*tdls_channel_switch)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, u8 oper_class,
+ struct cfg80211_chan_def *chandef,
+ struct sk_buff *skb, u32 ch_sw_tm_ie);
+ void (*tdls_cancel_channel_switch)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
};
/**
--
cgit v1.2.1
From 8a4d32f30d11d6d8cc29594c7a36b9be6b0edbb5 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Sun, 9 Nov 2014 18:50:20 +0200
Subject: mac80211: add TDLS channel-switch Rx flow
When receiving a TDLS channel switch request or response, parse the frame
and call a new tdls_recv_channel_switch op in the low level driver with
the parsed data.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 37 ++++++++++++++++++++++++++++++++++++-
1 file changed, 36 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index fdedceb7adcb..56b7e2114728 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1826,6 +1826,31 @@ struct ieee80211_scan_request {
struct cfg80211_scan_request req;
};
+/**
+ * struct ieee80211_tdls_ch_sw_params - TDLS channel switch parameters
+ *
+ * @sta: peer this TDLS channel-switch request/response came from
+ * @chandef: channel referenced in a TDLS channel-switch request
+ * @action_code: see &enum ieee80211_tdls_actioncode
+ * @status: channel-switch response status
+ * @timestamp: time at which the frame was received
+ * @switch_time: switch-timing parameter received in the frame
+ * @switch_timeout: switch-timing parameter received in the frame
+ * @tmpl_skb: TDLS switch-channel response template
+ * @ch_sw_tm_ie: offset of the channel-switch timing IE inside @tmpl_skb
+ */
+struct ieee80211_tdls_ch_sw_params {
+ struct ieee80211_sta *sta;
+ struct cfg80211_chan_def *chandef;
+ u8 action_code;
+ u32 status;
+ u32 timestamp;
+ u16 switch_time;
+ u16 switch_timeout;
+ struct sk_buff *tmpl_skb;
+ u32 ch_sw_tm_ie;
+};
+
/**
* wiphy_to_ieee80211_hw - return a mac80211 driver hw struct from a wiphy
*
@@ -2925,6 +2950,13 @@ enum ieee80211_reconfig_type {
* optionally copy the skb for further re-use.
* @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
* peers must be on the base channel when the call completes.
+ * @tdls_recv_channel_switch: a TDLS channel-switch related frame (request or
+ * response) has been received from a remote peer. The driver gets
+ * parameters parsed from the incoming frame and may use them to continue
+ * an ongoing channel-switch operation. In addition, a channel-switch
+ * response template is provided, together with the location of the
+ * switch-timing IE within the template. The skb can only be used within
+ * the function call.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,
@@ -3141,10 +3173,13 @@ struct ieee80211_ops {
struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u8 oper_class,
struct cfg80211_chan_def *chandef,
- struct sk_buff *skb, u32 ch_sw_tm_ie);
+ struct sk_buff *tmpl_skb, u32 ch_sw_tm_ie);
void (*tdls_cancel_channel_switch)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
+ void (*tdls_recv_channel_switch)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_tdls_ch_sw_params *params);
};
/**
--
cgit v1.2.1
From b6da911b3cf1d342f2f7123c9eb6463d299bca4e Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Wed, 19 Nov 2014 13:47:38 +0200
Subject: mac80211: synchronously reserve TID per station
In TDLS (e.g., TDLS off-channel) there is a requirement for
some drivers to supply an unused TID between the AP and the
device to the FW, to allow sending PTI requests and to allow
the FW to aggregate on a specific TID for better throughput.
To ensure that the allocated TID is indeed unused, this patch
introduces an API for blocking the driver from TXing on that
TID.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 56b7e2114728..59166a115aff 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -5070,6 +5070,43 @@ void ieee80211_tdls_oper_request(struct ieee80211_vif *vif, const u8 *peer,
enum nl80211_tdls_operation oper,
u16 reason_code, gfp_t gfp);
+/**
+ * ieee80211_reserve_tid - request to reserve a specific TID
+ *
+ * There is sometimes a need (such as in TDLS) for blocking the driver from
+ * using a specific TID so that the FW can use it for certain operations such
+ * as sending PTI requests. To make sure that the driver doesn't use that TID,
+ * this function must be called as it flushes out packets on this TID and marks
+ * it as blocked, so that any transmit for the station on this TID will be
+ * redirected to the alternative TID in the same AC.
+ *
+ * Note that this function blocks and may call back into the driver, so it
+ * should be called without driver locks held. Also note this function should
+ * only be called from the driver's @sta_state callback.
+ *
+ * @sta: the station to reserve the TID for
+ * @tid: the TID to reserve
+ *
+ * Returns: 0 on success, else on failure
+ */
+int ieee80211_reserve_tid(struct ieee80211_sta *sta, u8 tid);
+
+/**
+ * ieee80211_unreserve_tid - request to unreserve a specific TID
+ *
+ * Once there is no longer any need for reserving a certain TID, this function
+ * should be called, and no longer will packets have their TID modified for
+ * preventing use of this TID in the driver.
+ *
+ * Note that this function blocks and acquires a lock, so it should be called
+ * without driver locks held. Also note this function should only be called
+ * from the driver's @sta_state callback.
+ *
+ * @sta: the station
+ * @tid: the TID to unreserve
+ */
+void ieee80211_unreserve_tid(struct ieee80211_sta *sta, u8 tid);
+
/**
* ieee80211_ie_split - split an IE buffer according to ordering
*
--
cgit v1.2.1
From 8cd4d4563ef0a518002c4a8f47dd950afe386ea8 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Wed, 17 Sep 2014 11:55:28 +0300
Subject: cfg80211: add wowlan net-detect support
Add a new WoWLAN API to enable net-detect as a wake up trigger.
Net-detect allows the device to scan in the background while the
host is asleep to wake up the host system when a matching network
is found.
Reuse the scheduled scan attributes to specify how the scan is
performed while suspended and the matches that will trigger a
wake event.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 41 +++++++++++++++++++++++++++++++++++++++++
include/uapi/linux/nl80211.h | 23 +++++++++++++++++++++++
2 files changed, 64 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8d04dfef32bf..05aae22e92a5 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1940,6 +1940,7 @@ struct cfg80211_wowlan_tcp {
* @rfkill_release: wake up when rfkill is released
* @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
* NULL if not configured.
+ * @nd_config: configuration for the scan to be used for net detect wake.
*/
struct cfg80211_wowlan {
bool any, disconnect, magic_pkt, gtk_rekey_failure,
@@ -1948,6 +1949,7 @@ struct cfg80211_wowlan {
struct cfg80211_pkt_pattern *patterns;
struct cfg80211_wowlan_tcp *tcp;
int n_patterns;
+ struct cfg80211_sched_scan_request *nd_config;
};
/**
@@ -1979,6 +1981,35 @@ struct cfg80211_coalesce {
int n_rules;
};
+/**
+ * struct cfg80211_wowlan_nd_match - information about the match
+ *
+ * @ssid: SSID of the match that triggered the wake up
+ * @n_channels: Number of channels where the match occurred. This
+ * value may be zero if the driver can't report the channels.
+ * @channels: center frequencies of the channels where a match
+ * occurred (in MHz)
+ */
+struct cfg80211_wowlan_nd_match {
+ struct cfg80211_ssid ssid;
+ int n_channels;
+ u32 channels[];
+};
+
+/**
+ * struct cfg80211_wowlan_nd_info - net detect wake up information
+ *
+ * @n_matches: Number of match information instances provided in
+ * @matches. This value may be zero if the driver can't provide
+ * match information.
+ * @matches: Array of pointers to matches containing information about
+ * the matches that triggered the wake up.
+ */
+struct cfg80211_wowlan_nd_info {
+ int n_matches;
+ struct cfg80211_wowlan_nd_match *matches[];
+};
+
/**
* struct cfg80211_wowlan_wakeup - wakeup report
* @disconnect: woke up by getting disconnected
@@ -1998,6 +2029,7 @@ struct cfg80211_coalesce {
* @tcp_match: TCP wakeup packet received
* @tcp_connlost: TCP connection lost or failed to establish
* @tcp_nomoretokens: TCP data ran out of tokens
+ * @net_detect: if not %NULL, woke up because of net detect
*/
struct cfg80211_wowlan_wakeup {
bool disconnect, magic_pkt, gtk_rekey_failure,
@@ -2007,6 +2039,7 @@ struct cfg80211_wowlan_wakeup {
s32 pattern_idx;
u32 packet_present_len, packet_len;
const void *packet;
+ struct cfg80211_wowlan_nd_info *net_detect;
};
/**
@@ -2810,6 +2843,7 @@ struct ieee80211_txrx_stypes {
* @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
* @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
* @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
+ * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection
*/
enum wiphy_wowlan_support_flags {
WIPHY_WOWLAN_ANY = BIT(0),
@@ -2820,6 +2854,7 @@ enum wiphy_wowlan_support_flags {
WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
+ WIPHY_WOWLAN_NET_DETECT = BIT(8),
};
struct wiphy_wowlan_tcp_support {
@@ -2838,6 +2873,11 @@ struct wiphy_wowlan_tcp_support {
* @pattern_max_len: maximum length of each pattern
* @pattern_min_len: minimum length of each pattern
* @max_pkt_offset: maximum Rx packet offset
+ * @max_nd_match_sets: maximum number of matchsets for net-detect,
+ * similar, but not necessarily identical, to max_match_sets for
+ * scheduled scans.
+ * See &struct cfg80211_sched_scan_request.@match_sets for more
+ * details.
* @tcp: TCP wakeup support information
*/
struct wiphy_wowlan_support {
@@ -2846,6 +2886,7 @@ struct wiphy_wowlan_support {
int pattern_max_len;
int pattern_min_len;
int max_pkt_offset;
+ int max_nd_match_sets;
const struct wiphy_wowlan_tcp_support *tcp;
};
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 365db67ca71d..d23208194e3c 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1686,6 +1686,7 @@ enum nl80211_commands {
*
* @NL80211_ATTR_OPER_CLASS: operating class
*
+ * @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -2043,6 +2044,7 @@ enum nl80211_attrs {
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
+ NUM_NL80211_ATTR = __NL80211_ATTR_AFTER_LAST,
NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
};
@@ -3610,6 +3612,25 @@ struct nl80211_pattern_support {
* @NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS: For wakeup reporting only,
* the TCP connection ran out of tokens to use for data to send to the
* service
+ * @NL80211_WOWLAN_TRIG_NET_DETECT: wake up when a configured network
+ * is detected. This is a nested attribute that contains the
+ * same attributes used with @NL80211_CMD_START_SCHED_SCAN. It
+ * specifies how the scan is performed (e.g. the interval and the
+ * channels to scan) as well as the scan results that will
+ * trigger a wake (i.e. the matchsets).
+ * @NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS: nested attribute
+ * containing an array with information about what triggered the
+ * wake up. If no elements are present in the array, it means
+ * that the information is not available. If more than one
+ * element is present, it means that more than one match
+ * occurred.
+ * Each element in the array is a nested attribute that contains
+ * one optional %NL80211_ATTR_SSID attribute and one optional
+ * %NL80211_ATTR_SCAN_FREQUENCIES attribute. At least one of
+ * these attributes must be present. If
+ * %NL80211_ATTR_SCAN_FREQUENCIES contains more than one
+ * frequency, it means that the match occurred in more than one
+ * channel.
* @NUM_NL80211_WOWLAN_TRIG: number of wake on wireless triggers
* @MAX_NL80211_WOWLAN_TRIG: highest wowlan trigger attribute number
*
@@ -3635,6 +3656,8 @@ enum nl80211_wowlan_triggers {
NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH,
NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST,
NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS,
+ NL80211_WOWLAN_TRIG_NET_DETECT,
+ NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS,
/* keep last */
NUM_NL80211_WOWLAN_TRIG,
--
cgit v1.2.1
From ad2b26abc157460ca6fac1a53a2bfeade283adfa Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 12 Jun 2014 21:39:05 +0200
Subject: cfg80211: allow drivers to support random MAC addresses for scan
Add the necessary feature flags and a scan flag to support using
random MAC addresses for scan while unassociated.
The configuration for this supports an arbitrary MAC address
value and mask, so that any kind of configuration (e.g. fixed
OUI or full 46-bit random) can be requested. Full 46-bit random
is the default when no other configuration is passed.
Also add a small helper function to use the addr/mask correctly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 25 +++++++++++++++++++++++++
include/uapi/linux/nl80211.h | 29 +++++++++++++++++++++++++++++
2 files changed, 54 insertions(+)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 05aae22e92a5..bb748c4da5af 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1437,6 +1437,10 @@ struct cfg80211_ssid {
* @aborted: (internal) scan request was notified as aborted
* @notified: (internal) scan request was notified as done or aborted
* @no_cck: used to send probe requests at non CCK rate in 2GHz band
+ * @mac_addr: MAC address used with randomisation
+ * @mac_addr_mask: MAC address mask used with randomisation, bits that
+ * are 0 in the mask should be randomised, bits that are 1 should
+ * be taken from the @mac_addr
*/
struct cfg80211_scan_request {
struct cfg80211_ssid *ssids;
@@ -1451,6 +1455,9 @@ struct cfg80211_scan_request {
struct wireless_dev *wdev;
+ u8 mac_addr[ETH_ALEN] __aligned(2);
+ u8 mac_addr_mask[ETH_ALEN] __aligned(2);
+
/* internal */
struct wiphy *wiphy;
unsigned long scan_start;
@@ -1461,6 +1468,17 @@ struct cfg80211_scan_request {
struct ieee80211_channel *channels[0];
};
+static inline void get_random_mask_addr(u8 *buf, const u8 *addr, const u8 *mask)
+{
+ int i;
+
+ get_random_bytes(buf, ETH_ALEN);
+ for (i = 0; i < ETH_ALEN; i++) {
+ buf[i] &= ~mask[i];
+ buf[i] |= addr[i] & mask[i];
+ }
+}
+
/**
* struct cfg80211_match_set - sets of attributes to match
*
@@ -1494,6 +1512,10 @@ struct cfg80211_match_set {
* @channels: channels to scan
* @min_rssi_thold: for drivers only supporting a single threshold, this
* contains the minimum over all matchsets
+ * @mac_addr: MAC address used with randomisation
+ * @mac_addr_mask: MAC address mask used with randomisation, bits that
+ * are 0 in the mask should be randomised, bits that are 1 should
+ * be taken from the @mac_addr
*/
struct cfg80211_sched_scan_request {
struct cfg80211_ssid *ssids;
@@ -1508,6 +1530,9 @@ struct cfg80211_sched_scan_request {
int n_match_sets;
s32 min_rssi_thold;
+ u8 mac_addr[ETH_ALEN] __aligned(2);
+ u8 mac_addr_mask[ETH_ALEN] __aligned(2);
+
/* internal */
struct wiphy *wiphy;
struct net_device *dev;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index d23208194e3c..a99081efc2d4 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1686,6 +1686,8 @@ enum nl80211_commands {
*
* @NL80211_ATTR_OPER_CLASS: operating class
*
+ * @NL80211_ATTR_MAC_MASK: MAC address mask
+ *
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -2041,6 +2043,8 @@ enum nl80211_attrs {
NL80211_ATTR_OPER_CLASS,
+ NL80211_ATTR_MAC_MASK,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -4139,6 +4143,18 @@ enum nl80211_ap_sme_features {
* See 'macaddr' field in the vif_params (cfg80211.h).
* @NL80211_FEATURE_TDLS_CHANNEL_SWITCH: Driver supports channel switching when
* operating as a TDLS peer.
+ * @NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR: This device/driver supports using a
+ * random MAC address during scan (if the device is unassociated); the
+ * %NL80211_SCAN_FLAG_RANDOM_ADDR flag may be set for scans and the MAC
+ * address mask/value will be used.
+ * @NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR: This device/driver supports
+ * using a random MAC address for every scan iteration during scheduled
+ * scan (while not associated), the %NL80211_SCAN_FLAG_RANDOM_ADDR may
+ * be set for scheduled scan and the MAC address mask/value will be used.
+ * @NL80211_FEATURE_ND_RANDOM_MAC_ADDR: This device/driver supports using a
+ * random MAC address for every scan iteration during "net detect", i.e.
+ * scan in unassociated WoWLAN, the %NL80211_SCAN_FLAG_RANDOM_ADDR may
+ * be set for scheduled scan and the MAC address mask/value will be used.
*/
enum nl80211_feature_flags {
NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
@@ -4170,6 +4186,9 @@ enum nl80211_feature_flags {
NL80211_FEATURE_SUPPORTS_WMM_ADMISSION = 1 << 26,
NL80211_FEATURE_MAC_ON_CREATE = 1 << 27,
NL80211_FEATURE_TDLS_CHANNEL_SWITCH = 1 << 28,
+ NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR = 1 << 29,
+ NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR = 1 << 30,
+ NL80211_FEATURE_ND_RANDOM_MAC_ADDR = 1 << 31,
};
/**
@@ -4218,11 +4237,21 @@ enum nl80211_connect_failed_reason {
* dangerous because will destroy stations performance as a lot of frames
* will be lost while scanning off-channel, therefore it must be used only
* when really needed
+ * @NL80211_SCAN_FLAG_RANDOM_ADDR: use a random MAC address for this scan (or
+ * for scheduled scan: a different one for every scan iteration). When the
+ * flag is set, depending on device capabilities the @NL80211_ATTR_MAC and
+ * @NL80211_ATTR_MAC_MASK attributes may also be given in which case only
+ * the masked bits will be preserved from the MAC address and the remainder
+ * randomised. If the attributes are not given full randomisation (46 bits,
+ * locally administered 1, multicast 0) is assumed.
+ * This flag must not be requested when the feature isn't supported, check
+ * the nl80211 feature flags for the device.
*/
enum nl80211_scan_flags {
NL80211_SCAN_FLAG_LOW_PRIORITY = 1<<0,
NL80211_SCAN_FLAG_FLUSH = 1<<1,
NL80211_SCAN_FLAG_AP = 1<<2,
+ NL80211_SCAN_FLAG_RANDOM_ADDR = 1<<3,
};
/**
--
cgit v1.2.1
From a344d6778a98e4c19ac871f369e399e6356edcb3 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 12 Jun 2014 22:24:31 +0200
Subject: mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR
Allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR with software
based scanning and generate a random MAC address for them for every
scan request with the flag.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 59166a115aff..7b889e3a2647 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2622,7 +2622,9 @@ enum ieee80211_reconfig_type {
*
* @sw_scan_start: Notifier function that is called just before a software scan
* is started. Can be NULL, if the driver doesn't need this notification.
- * The callback can sleep.
+ * The mac_addr parameter allows supporting NL80211_SCAN_FLAG_RANDOM_ADDR,
+ * the driver may set the NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR flag if it
+ * can use this parameter. The callback can sleep.
*
* @sw_scan_complete: Notifier function that is called just after a
* software scan finished. Can be NULL, if the driver doesn't need
@@ -3016,8 +3018,11 @@ struct ieee80211_ops {
struct ieee80211_scan_ies *ies);
int (*sched_scan_stop)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
- void (*sw_scan_start)(struct ieee80211_hw *hw);
- void (*sw_scan_complete)(struct ieee80211_hw *hw);
+ void (*sw_scan_start)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ const u8 *mac_addr);
+ void (*sw_scan_complete)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif);
int (*get_stats)(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats);
void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
@@ -3820,7 +3825,7 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
/**
* ieee80211_probereq_get - retrieve a Probe Request template
* @hw: pointer obtained from ieee80211_alloc_hw().
- * @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @src_addr: source MAC address
* @ssid: SSID buffer
* @ssid_len: length of SSID
* @tailroom: tailroom to reserve at end of SKB for IEs
@@ -3831,7 +3836,7 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
* Return: The Probe Request template. %NULL on error.
*/
struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
+ const u8 *src_addr,
const u8 *ssid, size_t ssid_len,
size_t tailroom);
--
cgit v1.2.1
From 18e5ca65e55da4cacd9deb4e934eb5429bb4b79d Mon Sep 17 00:00:00 2001
From: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Date: Thu, 13 Nov 2014 17:25:14 +0200
Subject: nl80211: Replace interface socket owner attribute with more generic
one
Replace NL80211_ATTR_IFACE_SOCKET_OWNER attribute with more generic
NL80211_ATTR_SOCKET_OWNER that can be used with other commands
that interface creation.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/uapi/linux/nl80211.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index a99081efc2d4..d77524510435 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1652,9 +1652,9 @@ enum nl80211_commands {
* @NL80211_ATTR_TDLS_PEER_CAPABILITY: flags for TDLS peer capabilities, u32.
* As specified in the &enum nl80211_tdls_peer_capability.
*
- * @NL80211_ATTR_IFACE_SOCKET_OWNER: flag attribute, if set during interface
+ * @NL80211_ATTR_SOCKET_OWNER: Flag attribute, if set during interface
* creation then the new interface will be owned by the netlink socket
- * that created it and will be destroyed when the socket is closed
+ * that created it and will be destroyed when the socket is closed.
*
* @NL80211_ATTR_TDLS_INITIATOR: flag attribute indicating the current end is
* the TDLS link initiator.
@@ -2024,7 +2024,7 @@ enum nl80211_attrs {
NL80211_ATTR_TDLS_PEER_CAPABILITY,
- NL80211_ATTR_IFACE_SOCKET_OWNER,
+ NL80211_ATTR_SOCKET_OWNER,
NL80211_ATTR_CSA_C_OFFSETS_TX,
NL80211_ATTR_MAX_CSA_COUNTERS,
@@ -2055,6 +2055,7 @@ enum nl80211_attrs {
/* source-level API compatibility */
#define NL80211_ATTR_SCAN_GENERATION NL80211_ATTR_GENERATION
#define NL80211_ATTR_MESH_PARAMS NL80211_ATTR_MESH_CONFIG
+#define NL80211_ATTR_IFACE_SOCKET_OWNER NL80211_ATTR_SOCKET_OWNER
/*
* Allow user space programs to use #ifdef on new attributes by defining them
--
cgit v1.2.1
From b5ae6b15bd73e35b129408755a0804287a87e041 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 12 Oct 2014 22:16:02 -0400
Subject: merge d_materialise_unique() into d_splice_alias()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/dcache.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 1c2f1b84468b..ee569da27b72 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -230,7 +230,7 @@ extern seqlock_t rename_lock;
*/
extern void d_instantiate(struct dentry *, struct inode *);
extern struct dentry * d_instantiate_unique(struct dentry *, struct inode *);
-extern struct dentry * d_materialise_unique(struct dentry *, struct inode *);
+#define d_materialise_unique(d, i) d_splice_alias(i, d)
extern int d_instantiate_no_diralias(struct dentry *, struct inode *);
extern void __d_drop(struct dentry *dentry);
extern void d_drop(struct dentry *dentry);
--
cgit v1.2.1
From 41d28bca2da4bd75a8915c1ccf2cacf7f4a2e531 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 12 Oct 2014 22:24:21 -0400
Subject: switch d_materialise_unique() users to d_splice_alias()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/dcache.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index ee569da27b72..5a813988e6d4 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -230,7 +230,6 @@ extern seqlock_t rename_lock;
*/
extern void d_instantiate(struct dentry *, struct inode *);
extern struct dentry * d_instantiate_unique(struct dentry *, struct inode *);
-#define d_materialise_unique(d, i) d_splice_alias(i, d)
extern int d_instantiate_no_diralias(struct dentry *, struct inode *);
extern void __d_drop(struct dentry *dentry);
extern void d_drop(struct dentry *dentry);
--
cgit v1.2.1
From b583043e99bc6d91e98fae32bd9eff6a5958240a Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 31 Oct 2014 01:22:04 -0400
Subject: kill f_dentry uses
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/cgroup.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 1d5196889048..27b0c9105da5 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -367,8 +367,8 @@ struct css_set {
* struct cftype: handler definitions for cgroup control files
*
* When reading/writing to a file:
- * - the cgroup to use is file->f_dentry->d_parent->d_fsdata
- * - the 'cftype' of the file is file->f_dentry->d_fsdata
+ * - the cgroup to use is file->f_path.dentry->d_parent->d_fsdata
+ * - the 'cftype' of the file is file->f_path.dentry->d_fsdata
*/
/* cftype->flags */
--
cgit v1.2.1
From 9f45f5bf302daad6835ce64701fb3c286a2cc6af Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 31 Oct 2014 17:44:57 -0400
Subject: new helper: audit_file()
... for situations when we don't have any candidate in pathnames - basically,
in descriptor-based syscalls.
[Folded the build fix for !CONFIG_AUDITSYSCALL configs from Chen Gang]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/audit.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/audit.h b/include/linux/audit.h
index e58fe7df8b9c..0c04917c2f12 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -130,6 +130,7 @@ extern void audit_putname(struct filename *name);
#define AUDIT_INODE_HIDDEN 2 /* audit record should be hidden */
extern void __audit_inode(struct filename *name, const struct dentry *dentry,
unsigned int flags);
+extern void __audit_file(const struct file *);
extern void __audit_inode_child(const struct inode *parent,
const struct dentry *dentry,
const unsigned char type);
@@ -183,6 +184,11 @@ static inline void audit_inode(struct filename *name,
__audit_inode(name, dentry, flags);
}
}
+static inline void audit_file(struct file *file)
+{
+ if (unlikely(!audit_dummy_context()))
+ __audit_file(file);
+}
static inline void audit_inode_parent_hidden(struct filename *name,
const struct dentry *dentry)
{
@@ -357,6 +363,9 @@ static inline void audit_inode(struct filename *name,
const struct dentry *dentry,
unsigned int parent)
{ }
+static inline void audit_file(struct file *file)
+{
+}
static inline void audit_inode_parent_hidden(struct filename *name,
const struct dentry *dentry)
{ }
--
cgit v1.2.1
From 78d28e651f97866d608d9b41f8ad291e65d47dd5 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 31 Oct 2014 01:22:04 -0400
Subject: kill f_dentry macro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/fs.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 1c12c681803f..1a8bb3c023a1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -789,7 +789,6 @@ struct file {
struct rcu_head fu_rcuhead;
} f_u;
struct path f_path;
-#define f_dentry f_path.dentry
struct inode *f_inode; /* cached value */
const struct file_operations *f_op;
--
cgit v1.2.1
From f815e2b3c0126c26911cac72b837f03a31c0c2ed Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 19 Nov 2014 00:10:42 +0100
Subject: mac80211: notify drivers on sta rate table changes
This allows drivers with a firmware or chip-based rate lookup table to
use the most recent default rate selection without having to get it from
per-packet data or explicit ieee80211_get_tx_rate calls
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7b889e3a2647..cff3a26a9dae 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2695,6 +2695,9 @@ enum ieee80211_reconfig_type {
* uses hardware rate control (%IEEE80211_HW_HAS_RATE_CONTROL) since
* otherwise the rate control algorithm is notified directly.
* Must be atomic.
+ * @sta_rate_tbl_update: Notifies the driver that the rate table changed. This
+ * is only used if the configured rate control algorithm actually uses
+ * the new rate table API, and is therefore optional. Must be atomic.
*
* @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
* bursting) for a hardware TX queue.
@@ -3056,6 +3059,9 @@ struct ieee80211_ops {
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
u32 changed);
+ void (*sta_rate_tbl_update)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
int (*conf_tx)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, u16 ac,
const struct ieee80211_tx_queue_params *params);
--
cgit v1.2.1
From aec0be2d6e9f02dbef41ee54854c2e003e55c23e Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Tue, 18 Nov 2014 21:14:11 -0500
Subject: ftrace/x86/extable: Add is_ftrace_trampoline() function
Stack traces that happen from function tracing check if the address
on the stack is a __kernel_text_address(). That is, is the address
kernel code. This calls core_kernel_text() which returns true
if the address is part of the builtin kernel code. It also calls
is_module_text_address() which returns true if the address belongs
to module code.
But what is missing is ftrace dynamically allocated trampolines.
These trampolines are allocated for individual ftrace_ops that
call the ftrace_ops callback functions directly. But if they do a
stack trace, the code checking the stack wont detect them as they
are neither core kernel code nor module address space.
Adding another field to ftrace_ops that also stores the size of
the trampoline assigned to it we can create a new function called
is_ftrace_trampoline() that returns true if the address is a
dynamically allocate ftrace trampoline. Note, it ignores trampolines
that are not dynamically allocated as they will return true with
the core_kernel_text() function.
Link: http://lkml.kernel.org/r/20141119034829.497125839@goodmis.org
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 619e37cc17fd..7b2616fa2472 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -150,6 +150,7 @@ struct ftrace_ops {
struct ftrace_ops_hash *func_hash;
struct ftrace_ops_hash old_hash;
unsigned long trampoline;
+ unsigned long trampoline_size;
#endif
};
@@ -297,6 +298,8 @@ extern int ftrace_text_reserved(const void *start, const void *end);
extern int ftrace_nr_registered_ops(void);
+bool is_ftrace_trampoline(unsigned long addr);
+
/*
* The dyn_ftrace record's flags field is split into two parts.
* the first part which is '0-FTRACE_REF_MAX' is a counter of
@@ -596,6 +599,11 @@ static inline ssize_t ftrace_notrace_write(struct file *file, const char __user
size_t cnt, loff_t *ppos) { return -ENODEV; }
static inline int
ftrace_regex_release(struct inode *inode, struct file *file) { return -ENODEV; }
+
+static inline bool is_ftrace_trampoline(unsigned long addr)
+{
+ return false;
+}
#endif /* CONFIG_DYNAMIC_FTRACE */
/* totally disable ftrace - can not re-enable after this */
--
cgit v1.2.1
From 19a7fe206232cc875a3083211e0a21c08edd756e Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 12 Nov 2014 10:29:54 -0500
Subject: tracing: Add trace_seq_has_overflowed() and trace_handle_return()
Adding a trace_seq_has_overflowed() which returns true if the trace_seq
had too much written into it allows us to simplify the code.
Instead of checking the return value of every call to trace_seq_printf()
and friends, they can all be called normally, and at the end we can
return !trace_seq_has_overflowed() instead.
Several functions also return TRACE_TYPE_PARTIAL_LINE when the trace_seq
overflowed and TRACE_TYPE_HANDLED otherwise. Another helper function
was created called trace_handle_return() which takes a trace_seq and
returns these enums. Using this helper function also simplifies the
code.
This change also makes it possible to remove the return values of
trace_seq_printf() and friends. They should instead just be
void functions.
Link: http://lkml.kernel.org/r/20141114011410.365183157@goodmis.org
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace_event.h | 11 +++++++++++
include/linux/trace_seq.h | 12 ++++++++++++
include/trace/ftrace.h | 6 ++----
3 files changed, 25 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 28672e87e910..0bebb5c348b8 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -138,6 +138,17 @@ enum print_line_t {
TRACE_TYPE_NO_CONSUME = 3 /* Handled but ask to not consume */
};
+/*
+ * Several functions return TRACE_TYPE_PARTIAL_LINE if the trace_seq
+ * overflowed, and TRACE_TYPE_HANDLED otherwise. This helper function
+ * simplifies those functions and keeps them in sync.
+ */
+static inline enum print_line_t trace_handle_return(struct trace_seq *s)
+{
+ return trace_seq_has_overflowed(s) ?
+ TRACE_TYPE_PARTIAL_LINE : TRACE_TYPE_HANDLED;
+}
+
void tracing_generic_entry_update(struct trace_entry *entry,
unsigned long flags,
int pc);
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index ea6c9dea79e3..07eda413dfcf 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -40,6 +40,18 @@ trace_seq_buffer_ptr(struct trace_seq *s)
return s->buffer + s->len;
}
+/**
+ * trace_seq_has_overflowed - return true if the trace_seq took too much
+ * @s: trace sequence descriptor
+ *
+ * Returns true if too much data was added to the trace_seq and it is
+ * now full and will not take anymore.
+ */
+static inline bool trace_seq_has_overflowed(struct trace_seq *s)
+{
+ return s->full || s->len > PAGE_SIZE - 1;
+}
+
/*
* Currently only defined when tracing is enabled.
*/
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 26b4f2e13275..f13471b5d27a 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -280,11 +280,9 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
if (ret) \
return ret; \
\
- ret = trace_seq_printf(s, print); \
- if (!ret) \
- return TRACE_TYPE_PARTIAL_LINE; \
+ trace_seq_printf(s, print); \
\
- return TRACE_TYPE_HANDLED; \
+ return trace_handle_return(s); \
} \
static struct trace_event_functions ftrace_event_type_funcs_##call = { \
.trace = ftrace_raw_output_##call, \
--
cgit v1.2.1
From dba39448abb7340f86ae9b062f99d7acacb5d2d2 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 12 Nov 2014 18:07:22 -0500
Subject: tracing: Remove return values of most trace_seq_*() functions
The trace_seq_printf() and friends are used to store strings into a buffer
that can be passed around from function to function. If the trace_seq buffer
fills up, it will not print any more. The return values were somewhat
inconsistant and using trace_seq_has_overflowed() was a better way to know
if the write to the trace_seq buffer succeeded or not.
Now that all users have removed reading the return value of the printf()
type functions, they can safely return void and keep future users of them
from reading the inconsistent values as well.
Link: http://lkml.kernel.org/r/20141114011411.992510720@goodmis.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/trace_seq.h | 37 +++++++++++++++----------------------
1 file changed, 15 insertions(+), 22 deletions(-)
(limited to 'include')
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index 07eda413dfcf..db8a73224f1a 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -57,40 +57,37 @@ static inline bool trace_seq_has_overflowed(struct trace_seq *s)
*/
#ifdef CONFIG_TRACING
extern __printf(2, 3)
-int trace_seq_printf(struct trace_seq *s, const char *fmt, ...);
+void trace_seq_printf(struct trace_seq *s, const char *fmt, ...);
extern __printf(2, 0)
-int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args);
-extern int
+void trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args);
+extern void
trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary);
extern int trace_print_seq(struct seq_file *m, struct trace_seq *s);
extern int trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
int cnt);
-extern int trace_seq_puts(struct trace_seq *s, const char *str);
-extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
-extern int trace_seq_putmem(struct trace_seq *s, const void *mem, unsigned int len);
-extern int trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
+extern void trace_seq_puts(struct trace_seq *s, const char *str);
+extern void trace_seq_putc(struct trace_seq *s, unsigned char c);
+extern void trace_seq_putmem(struct trace_seq *s, const void *mem, unsigned int len);
+extern void trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
unsigned int len);
extern int trace_seq_path(struct trace_seq *s, const struct path *path);
-extern int trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp,
+extern void trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp,
int nmaskbits);
#else /* CONFIG_TRACING */
-static inline int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
+static inline void trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
{
- return 0;
}
-static inline int
+static inline void
trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary)
{
- return 0;
}
-static inline int
+static inline void
trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp,
int nmaskbits)
{
- return 0;
}
static inline int trace_print_seq(struct seq_file *m, struct trace_seq *s)
@@ -102,23 +99,19 @@ static inline int trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
{
return 0;
}
-static inline int trace_seq_puts(struct trace_seq *s, const char *str)
+static inline void trace_seq_puts(struct trace_seq *s, const char *str)
{
- return 0;
}
-static inline int trace_seq_putc(struct trace_seq *s, unsigned char c)
+static inline void trace_seq_putc(struct trace_seq *s, unsigned char c)
{
- return 0;
}
-static inline int
+static inline void
trace_seq_putmem(struct trace_seq *s, const void *mem, unsigned int len)
{
- return 0;
}
-static inline int trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
+static inline void trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
unsigned int len)
{
- return 0;
}
static inline int trace_seq_path(struct trace_seq *s, const struct path *path)
{
--
cgit v1.2.1
From 8e2e095cbecad21078332cd83ae7e61ecfe12c59 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 14 Nov 2014 11:42:06 -0500
Subject: tracing: Fix return value of ftrace_raw_output_prep()
If the trace_seq of ftrace_raw_output_prep() is full this function
returns TRACE_TYPE_PARTIAL_LINE, otherwise it returns zero.
The problem is that TRACE_TYPE_PARTIAL_LINE happens to be zero!
The thing is, the caller of ftrace_raw_output_prep() expects a
success to be zero. Change that to expect it to be
TRACE_TYPE_HANDLED.
Link: http://lkml.kernel.org/r/20141114112522.GA2988@dhcp128.suse.cz
Reminded-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/trace/ftrace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index f13471b5d27a..139b5067345b 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -277,7 +277,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
field = (typeof(field))iter->ent; \
\
ret = ftrace_raw_output_prep(iter, trace_event); \
- if (ret) \
+ if (ret != TRACE_TYPE_HANDLED) \
return ret; \
\
trace_seq_printf(s, print); \
--
cgit v1.2.1
From 2ab4bd8ea3a6954bc79a9bbeb291cd6c2d6213a7 Mon Sep 17 00:00:00 2001
From: David Teigland <teigland@redhat.com>
Date: Fri, 17 Oct 2014 11:05:50 -0500
Subject: dlm: adopt orphan locks
A process may exit, leaving an orphan lock in the lockspace.
This adds the capability for another process to acquire the
orphan lock. Acquiring the orphan just moves the lock from
the orphan list onto the acquiring process's list of locks.
An adopting process must specify the resource name and mode
of the lock it wants to adopt. If a matching lock is found,
the lock is moved to the caller's 's list of locks, and the
lkid of the lock is returned like the lkid of a new lock.
If an orphan with a different mode is found, then -EAGAIN is
returned. If no orphan lock is found on the resource, then
-ENOENT is returned. No async completion is used because
the result is immediately available.
Also, when orphans are purged, allow a zero nodeid to refer
to the local nodeid so the caller does not need to look up
the local nodeid.
Signed-off-by: David Teigland <teigland@redhat.com>
---
include/uapi/linux/dlmconstants.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/dlmconstants.h b/include/uapi/linux/dlmconstants.h
index 47bf08dc7566..2857bdc5b27b 100644
--- a/include/uapi/linux/dlmconstants.h
+++ b/include/uapi/linux/dlmconstants.h
@@ -114,7 +114,7 @@
*
* DLM_LKF_ORPHAN
*
- * not yet implemented
+ * Acquire an orphan lock.
*
* DLM_LKF_ALTPR
*
--
cgit v1.2.1
From 666547ff591cebdedc4679bf6b1b3f3383a8dea3 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 6 Apr 2014 14:03:05 -0400
Subject: separate kernel- and userland-side msghdr
Kernel-side struct msghdr is (currently) using the same layout as
userland one, but it's not a one-to-one copy - even without considering
32bit compat issues, we have msg_iov, msg_name and msg_control copied
to kernel[1]. It's fairly localized, so we get away with a few functions
where that knowledge is needed (and we could shrink that set even
more). Pretty much everything deals with the kernel-side variant and
the few places that want userland one just use a bunch of force-casts
to paper over the differences.
The thing is, kernel-side definition of struct msghdr is *not* exposed
in include/uapi - libc doesn't see it, etc. So we can add struct user_msghdr,
with proper annotations and let the few places that ever deal with those
beasts use it for userland pointers. Saner typechecking aside, that will
allow to change the layout of kernel-side msghdr - e.g. replace
msg_iov/msg_iovlen there with struct iov_iter, getting rid of the need
to modify the iovec as we copy data to/from it, etc.
We could introduce kernel_msghdr instead, but that would create much more
noise - the absolute majority of the instances would need to have the
type switched to kernel_msghdr and definition of struct msghdr in
include/linux/socket.h is not going to be seen by userland anyway.
This commit just introduces user_msghdr and switches the few places that
are dealing with userland-side msghdr to it.
[1] actually, it's even trickier than that - we copy msg_control for
sendmsg, but keep the userland address on recvmsg.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/socket.h | 16 +++++++++++++---
include/linux/syscalls.h | 6 +++---
2 files changed, 16 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/socket.h b/include/linux/socket.h
index bb9b83640070..51bd6668b80e 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -53,10 +53,20 @@ struct msghdr {
__kernel_size_t msg_controllen; /* ancillary data buffer length */
unsigned int msg_flags; /* flags on received message */
};
+
+struct user_msghdr {
+ void __user *msg_name; /* ptr to socket address structure */
+ int msg_namelen; /* size of socket address structure */
+ struct iovec __user *msg_iov; /* scatter/gather array */
+ __kernel_size_t msg_iovlen; /* # elements in msg_iov */
+ void __user *msg_control; /* ancillary data */
+ __kernel_size_t msg_controllen; /* ancillary data buffer length */
+ unsigned int msg_flags; /* flags on received message */
+};
/* For recvmmsg/sendmmsg */
struct mmsghdr {
- struct msghdr msg_hdr;
+ struct user_msghdr msg_hdr;
unsigned int msg_len;
};
@@ -319,8 +329,8 @@ extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
struct timespec;
/* The __sys_...msg variants allow MSG_CMSG_COMPAT */
-extern long __sys_recvmsg(int fd, struct msghdr __user *msg, unsigned flags);
-extern long __sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
+extern long __sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
+extern long __sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
unsigned int flags, struct timespec *timeout);
extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg,
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index bda9b81357cc..c9afdc7a7f84 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -25,7 +25,7 @@ struct linux_dirent64;
struct list_head;
struct mmap_arg_struct;
struct msgbuf;
-struct msghdr;
+struct user_msghdr;
struct mmsghdr;
struct msqid_ds;
struct new_utsname;
@@ -601,13 +601,13 @@ asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
asmlinkage long sys_send(int, void __user *, size_t, unsigned);
asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
struct sockaddr __user *, int);
-asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
+asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
unsigned int vlen, unsigned flags);
asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
struct sockaddr __user *, int __user *);
-asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned flags);
+asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
unsigned int vlen, unsigned flags,
struct timespec __user *timeout);
--
cgit v1.2.1
From 08adb7dabd4874cc5666b4490653b26534702ce0 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 10 Nov 2014 20:23:13 -0500
Subject: fold verify_iovec() into copy_msghdr_from_user()
... and do the same on the compat side of things.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/socket.h | 1 -
include/net/compat.h | 5 ++---
2 files changed, 2 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 51bd6668b80e..de5222832be4 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -322,7 +322,6 @@ extern int csum_partial_copy_fromiovecend(unsigned char *kdata,
extern unsigned long iov_pages(const struct iovec *iov, int offset,
unsigned long nr_segs);
-extern int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *address, int mode);
extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr);
extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data);
diff --git a/include/net/compat.h b/include/net/compat.h
index 3b603b199c01..42a9c8431177 100644
--- a/include/net/compat.h
+++ b/include/net/compat.h
@@ -40,9 +40,8 @@ int compat_sock_get_timestampns(struct sock *, struct timespec __user *);
#define compat_mmsghdr mmsghdr
#endif /* defined(CONFIG_COMPAT) */
-int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *);
-int verify_compat_iovec(struct msghdr *, struct iovec *,
- struct sockaddr_storage *, int);
+ssize_t get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
+ struct sockaddr __user **, struct iovec **);
asmlinkage long compat_sys_sendmsg(int, struct compat_msghdr __user *,
unsigned int);
asmlinkage long compat_sys_sendmmsg(int, struct compat_mmsghdr __user *,
--
cgit v1.2.1
From 232365f660b0016dcf618723707f91f4a95013db Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 10 Nov 2014 17:30:00 -0500
Subject: bury skb_copy_to_page()
no callers since 3.0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/net/sock.h | 23 -----------------------
1 file changed, 23 deletions(-)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index 83a669f83bae..df9b89bce8ff 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1884,29 +1884,6 @@ static inline int skb_copy_to_page_nocache(struct sock *sk, char __user *from,
return 0;
}
-static inline int skb_copy_to_page(struct sock *sk, char __user *from,
- struct sk_buff *skb, struct page *page,
- int off, int copy)
-{
- if (skb->ip_summed == CHECKSUM_NONE) {
- int err = 0;
- __wsum csum = csum_and_copy_from_user(from,
- page_address(page) + off,
- copy, 0, &err);
- if (err)
- return err;
- skb->csum = csum_block_add(skb->csum, csum, skb->len);
- } else if (copy_from_user(page_address(page) + off, from, copy))
- return -EFAULT;
-
- skb->len += copy;
- skb->data_len += copy;
- skb->truesize += copy;
- sk->sk_wmem_queued += copy;
- sk_mem_charge(sk, copy);
- return 0;
-}
-
/**
* sk_wmem_alloc_get - returns write allocations
* @sk: socket
--
cgit v1.2.1
From f52b69f1ecfdd7ef6867a257620258c09e569552 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 19 Nov 2014 18:38:08 +0100
Subject: drm/atomic: Don't overrun the connector array when hotplugging
Yet another fallout from not considering DP MST hotplug. With the
previous patches we have stable indices, but it might still happen
that a connector gets added between when we allocate the array and
when we actually add a connector. Especially when we back off due to
ww mutex contention or similar issues.
So store the sizes of the arrays in struct drm_atomic_state and double
check them. We don't really care about races except that we want to
use a consistent value, so ACCESS_ONCE is all we need. And if we
indeed notice that we'd overrun the array then just give up and
restart the entire ioctl.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_crtc.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 7b28ab032a88..f3142c64e3d5 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -825,6 +825,7 @@ struct drm_bridge {
* @plane_states: pointer to array of plane states pointers
* @crtcs: pointer to array of CRTC pointers
* @crtc_states: pointer to array of CRTC states pointers
+ * @num_connector: size of the @connectors and @connector_states arrays
* @connectors: pointer to array of connector pointers
* @connector_states: pointer to array of connector states pointers
* @acquire_ctx: acquire context for this atomic modeset state update
@@ -836,6 +837,7 @@ struct drm_atomic_state {
struct drm_plane_state **plane_states;
struct drm_crtc **crtcs;
struct drm_crtc_state **crtc_states;
+ int num_connector;
struct drm_connector **connectors;
struct drm_connector_state **connector_states;
--
cgit v1.2.1
From 3758b34193638f664177565f1692faa1bec7d9ed Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 19 Nov 2014 18:38:10 +0100
Subject: drm: s/enum_blob_list/enum_list/ in drm_property
I guess for hysterical raisins this was meant to be the way to read
blob properties. But that's done with the two-stage approach which
uses separate blob kms object and the special-purpose get_blob ioctl.
Shipping userspace seems to have never relied on this, and the kernel
also never put any blob thing onto that property. And nowadays it
would blow up, e.g. in drm_property_destroy. Also it makes no sense to
return values in an ioctl that only returns metadata about everything.
So let's ditch all the internal code for the blob list, rename the
list to be unambiguous and sprinkle comments all over the place to
explain this peculiar piece of api.
v2: Squash in fixup from Rob to remove now unused variables.
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_crtc.h | 2 +-
include/uapi/drm/drm_mode.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index f3142c64e3d5..b459e8fbbc25 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -216,7 +216,7 @@ struct drm_property {
uint64_t *values;
struct drm_device *dev;
- struct list_head enum_blob_list;
+ struct list_head enum_list;
};
struct drm_crtc;
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index a0db2d4aa5f0..86574b0005ff 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -286,6 +286,8 @@ struct drm_mode_get_property {
char name[DRM_PROP_NAME_LEN];
__u32 count_values;
+ /* This is only used to count enum values, not blobs. The _blobs is
+ * simply because of a historical reason, i.e. backwards compat. */
__u32 count_enum_blobs;
};
--
cgit v1.2.1
From 3a161d99c43ce74c76aecff309be4c3ba455e823 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 25 Jun 2014 15:54:42 -0400
Subject: tracing: Create seq_buf layer in trace_seq
Create a seq_buf layer that trace_seq sits on. The seq_buf will not
be limited to page size. This will allow other usages of seq_buf
instead of a hard set PAGE_SIZE one that trace_seq has.
Link: http://lkml.kernel.org/r/20141104160221.864997179@goodmis.org
Link: http://lkml.kernel.org/r/20141114011412.170377300@goodmis.org
Tested-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_buf.h | 81 +++++++++++++++++++++++++++++++++++++++++++++++
include/linux/trace_seq.h | 12 +++----
2 files changed, 86 insertions(+), 7 deletions(-)
create mode 100644 include/linux/seq_buf.h
(limited to 'include')
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
new file mode 100644
index 000000000000..4f7a96a9d71a
--- /dev/null
+++ b/include/linux/seq_buf.h
@@ -0,0 +1,81 @@
+#ifndef _LINUX_SEQ_BUF_H
+#define _LINUX_SEQ_BUF_H
+
+#include <linux/fs.h>
+
+/*
+ * Trace sequences are used to allow a function to call several other functions
+ * to create a string of data to use.
+ */
+
+/**
+ * seq_buf - seq buffer structure
+ * @buffer: pointer to the buffer
+ * @size: size of the buffer
+ * @len: the amount of data inside the buffer
+ * @readpos: The next position to read in the buffer.
+ */
+struct seq_buf {
+ unsigned char *buffer;
+ unsigned int size;
+ unsigned int len;
+ unsigned int readpos;
+};
+
+static inline void
+seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
+{
+ s->buffer = buf;
+ s->size = size;
+ s->len = 0;
+ s->readpos = 0;
+}
+
+/*
+ * seq_buf have a buffer that might overflow. When this happens
+ * the len and size are set to be equal.
+ */
+static inline bool
+seq_buf_has_overflowed(struct seq_buf *s)
+{
+ return s->len == s->size;
+}
+
+static inline void
+seq_buf_set_overflow(struct seq_buf *s)
+{
+ s->len = s->size;
+}
+
+/*
+ * How much buffer is left on the seq_buf?
+ */
+static inline unsigned int
+seq_buf_buffer_left(struct seq_buf *s)
+{
+ if (seq_buf_has_overflowed(s))
+ return 0;
+
+ return (s->size - 1) - s->len;
+}
+
+extern __printf(2, 3)
+int seq_buf_printf(struct seq_buf *s, const char *fmt, ...);
+extern __printf(2, 0)
+int seq_buf_vprintf(struct seq_buf *s, const char *fmt, va_list args);
+extern int
+seq_buf_bprintf(struct seq_buf *s, const char *fmt, const u32 *binary);
+extern int seq_buf_print_seq(struct seq_file *m, struct seq_buf *s);
+extern int seq_buf_to_user(struct seq_buf *s, char __user *ubuf,
+ int cnt);
+extern int seq_buf_puts(struct seq_buf *s, const char *str);
+extern int seq_buf_putc(struct seq_buf *s, unsigned char c);
+extern int seq_buf_putmem(struct seq_buf *s, const void *mem, unsigned int len);
+extern int seq_buf_putmem_hex(struct seq_buf *s, const void *mem,
+ unsigned int len);
+extern int seq_buf_path(struct seq_buf *s, const struct path *path);
+
+extern int seq_buf_bitmask(struct seq_buf *s, const unsigned long *maskp,
+ int nmaskbits);
+
+#endif /* _LINUX_SEQ_BUF_H */
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index db8a73224f1a..85d37106be3d 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -1,7 +1,7 @@
#ifndef _LINUX_TRACE_SEQ_H
#define _LINUX_TRACE_SEQ_H
-#include <linux/fs.h>
+#include <linux/seq_buf.h>
#include <asm/page.h>
@@ -12,16 +12,14 @@
struct trace_seq {
unsigned char buffer[PAGE_SIZE];
- unsigned int len;
- unsigned int readpos;
+ struct seq_buf seq;
int full;
};
static inline void
trace_seq_init(struct trace_seq *s)
{
- s->len = 0;
- s->readpos = 0;
+ seq_buf_init(&s->seq, s->buffer, PAGE_SIZE);
s->full = 0;
}
@@ -37,7 +35,7 @@ trace_seq_init(struct trace_seq *s)
static inline unsigned char *
trace_seq_buffer_ptr(struct trace_seq *s)
{
- return s->buffer + s->len;
+ return s->buffer + s->seq.len;
}
/**
@@ -49,7 +47,7 @@ trace_seq_buffer_ptr(struct trace_seq *s)
*/
static inline bool trace_seq_has_overflowed(struct trace_seq *s)
{
- return s->full || s->len > PAGE_SIZE - 1;
+ return s->full || seq_buf_has_overflowed(&s->seq);
}
/*
--
cgit v1.2.1
From dd23180aacf4b27d48f40b27249f1e58c8df03be Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 29 Oct 2014 13:48:37 -0400
Subject: tracing: Convert seq_buf_path() to be like seq_path()
Rewrite seq_buf_path() like it is done in seq_path() and allow
it to accept any escape character instead of just "\n".
Making seq_buf_path() like seq_path() will help prevent problems
when converting seq_file to use the seq_buf logic.
Link: http://lkml.kernel.org/r/20141104160222.048795666@goodmis.org
Link: http://lkml.kernel.org/r/20141114011412.338523371@goodmis.org
Tested-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_buf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index 4f7a96a9d71a..38770688a627 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -73,7 +73,7 @@ extern int seq_buf_putc(struct seq_buf *s, unsigned char c);
extern int seq_buf_putmem(struct seq_buf *s, const void *mem, unsigned int len);
extern int seq_buf_putmem_hex(struct seq_buf *s, const void *mem,
unsigned int len);
-extern int seq_buf_path(struct seq_buf *s, const struct path *path);
+extern int seq_buf_path(struct seq_buf *s, const struct path *path, const char *esc);
extern int seq_buf_bitmask(struct seq_buf *s, const unsigned long *maskp,
int nmaskbits);
--
cgit v1.2.1
From 9a7777935c34b9192e28ef3d232a4b6b5414a657 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 29 Oct 2014 13:59:58 -0400
Subject: tracing: Convert seq_buf fields to be like seq_file fields
In facilitating the conversion of seq_file to use seq_buf,
have the seq_buf fields match the types used by seq_file.
Link: http://lkml.kernel.org/r/20141104160222.195301024@goodmis.org
Tested-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_buf.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index 38770688a627..d14dc9023dde 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -16,10 +16,10 @@
* @readpos: The next position to read in the buffer.
*/
struct seq_buf {
- unsigned char *buffer;
- unsigned int size;
- unsigned int len;
- unsigned int readpos;
+ char *buffer;
+ size_t size;
+ size_t len;
+ loff_t readpos;
};
static inline void
--
cgit v1.2.1
From 0736c033a81547b1cdc5120fc8dd60e26a00fd28 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 29 Oct 2014 14:17:52 -0400
Subject: tracing: Add a seq_buf_clear() helper and clear len and readpos in
init
Add a helper function seq_buf_clear() that resets the len and readpos
fields of a seq_buf. Currently it is only used in the seq_buf_init()
but will be used later when updating the seq_file code.
Link: http://lkml.kernel.org/r/20141104160222.352309995@goodmis.org
Tested-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_buf.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index d14dc9023dde..5d91262433e2 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -22,13 +22,18 @@ struct seq_buf {
loff_t readpos;
};
+static inline void seq_buf_clear(struct seq_buf *s)
+{
+ s->len = 0;
+ s->readpos = 0;
+}
+
static inline void
seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
{
s->buffer = buf;
s->size = size;
- s->len = 0;
- s->readpos = 0;
+ seq_buf_clear(s);
}
/*
--
cgit v1.2.1
From eeab98154dc0b49afd398afdd71c464a8af5911f Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Thu, 6 Nov 2014 16:38:28 -0500
Subject: seq_buf: Create seq_buf_used() to find out how much was written
Add a helper function seq_buf_used() that replaces the SEQ_BUF_USED()
private macro to let callers have a method to know how much of the
seq_buf was written to.
Link: http://lkml.kernel.org/r/20141114011412.170377300@goodmis.org
Link: http://lkml.kernel.org/r/20141114011413.321654244@goodmis.org
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_buf.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index 5d91262433e2..93718e570d4c 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -64,6 +64,12 @@ seq_buf_buffer_left(struct seq_buf *s)
return (s->size - 1) - s->len;
}
+/* How much buffer was written? */
+static inline unsigned int seq_buf_used(struct seq_buf *s)
+{
+ return min(s->len, s->size);
+}
+
extern __printf(2, 3)
int seq_buf_printf(struct seq_buf *s, const char *fmt, ...);
extern __printf(2, 0)
--
cgit v1.2.1
From 5ac48378414dccca735897c4d7f4e19987c8977c Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 14 Nov 2014 15:49:41 -0500
Subject: tracing: Use trace_seq_used() and seq_buf_used() instead of len
As the seq_buf->len will soon be +1 size when there's an overflow, we
must use trace_seq_used() or seq_buf_used() methods to get the real
length. This will prevent buffer overflow issues if just the len
of the seq_buf descriptor is used to copy memory.
Link: http://lkml.kernel.org/r/20141114121911.09ba3d38@gandalf.local.home
Reported-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/trace_seq.h | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index 85d37106be3d..cfaf5a1d4bad 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -23,6 +23,24 @@ trace_seq_init(struct trace_seq *s)
s->full = 0;
}
+/**
+ * trace_seq_used - amount of actual data written to buffer
+ * @s: trace sequence descriptor
+ *
+ * Returns the amount of data written to the buffer.
+ *
+ * IMPORTANT!
+ *
+ * Use this instead of @s->seq.len if you need to pass the amount
+ * of data from the buffer to another buffer (userspace, or what not).
+ * The @s->seq.len on overflow is bigger than the buffer size and
+ * using it can cause access to undefined memory.
+ */
+static inline int trace_seq_used(struct trace_seq *s)
+{
+ return seq_buf_used(&s->seq);
+}
+
/**
* trace_seq_buffer_ptr - return pointer to next location in buffer
* @s: trace sequence descriptor
@@ -35,7 +53,7 @@ trace_seq_init(struct trace_seq *s)
static inline unsigned char *
trace_seq_buffer_ptr(struct trace_seq *s)
{
- return s->buffer + s->seq.len;
+ return s->buffer + seq_buf_used(&s->seq);
}
/**
--
cgit v1.2.1
From 8cd709ae7658a7fd7f6630699e3229188c2591e4 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 29 Oct 2014 15:26:09 -0400
Subject: tracing: Have seq_buf use full buffer
Currently seq_buf is full when all but one byte of the buffer is
filled. Change it so that the seq_buf is full when all of the
buffer is filled.
Some of the functions would fill the buffer completely and report
everything was fine. This was inconsistent with the max of size - 1.
Changing this to be max of size makes all functions consistent.
Link: http://lkml.kernel.org/r/20141104160222.502133196@goodmis.org
Link: http://lkml.kernel.org/r/20141114011412.811957882@goodmis.org
Tested-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_buf.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index 93718e570d4c..0800a24b4348 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -43,13 +43,13 @@ seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
static inline bool
seq_buf_has_overflowed(struct seq_buf *s)
{
- return s->len == s->size;
+ return s->len > s->size;
}
static inline void
seq_buf_set_overflow(struct seq_buf *s)
{
- s->len = s->size;
+ s->len = s->size + 1;
}
/*
@@ -61,7 +61,7 @@ seq_buf_buffer_left(struct seq_buf *s)
if (seq_buf_has_overflowed(s))
return 0;
- return (s->size - 1) - s->len;
+ return s->size - s->len;
}
/* How much buffer was written? */
--
cgit v1.2.1
From 01cb06a4c229908d239149017049fdd1fca1dd51 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 29 Oct 2014 17:30:50 -0400
Subject: tracing: Add seq_buf_get_buf() and seq_buf_commit() helper functions
Add two helper functions; seq_buf_get_buf() and seq_buf_commit() that
are used by seq_buf_path(). This makes the code similar to the
seq_file: seq_path() function, and will help to be able to consolidate
the functions between seq_file and trace_seq.
Link: http://lkml.kernel.org/r/20141104160222.644881406@goodmis.org
Link: http://lkml.kernel.org/r/20141114011412.977571447@goodmis.org
Tested-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_buf.h | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
(limited to 'include')
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index 0800a24b4348..12c64282aa98 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -70,6 +70,47 @@ static inline unsigned int seq_buf_used(struct seq_buf *s)
return min(s->len, s->size);
}
+/**
+ * seq_buf_get_buf - get buffer to write arbitrary data to
+ * @s: the seq_buf handle
+ * @bufp: the beginning of the buffer is stored here
+ *
+ * Return the number of bytes available in the buffer, or zero if
+ * there's no space.
+ */
+static inline size_t seq_buf_get_buf(struct seq_buf *s, char **bufp)
+{
+ WARN_ON(s->len > s->size + 1);
+
+ if (s->len < s->size) {
+ *bufp = s->buffer + s->len;
+ return s->size - s->len;
+ }
+
+ *bufp = NULL;
+ return 0;
+}
+
+/**
+ * seq_buf_commit - commit data to the buffer
+ * @s: the seq_buf handle
+ * @num: the number of bytes to commit
+ *
+ * Commit @num bytes of data written to a buffer previously acquired
+ * by seq_buf_get. To signal an error condition, or that the data
+ * didn't fit in the available space, pass a negative @num value.
+ */
+static inline void seq_buf_commit(struct seq_buf *s, int num)
+{
+ if (num < 0) {
+ seq_buf_set_overflow(s);
+ } else {
+ /* num must be negative on overflow */
+ BUG_ON(s->len + num > s->size);
+ s->len += num;
+ }
+}
+
extern __printf(2, 3)
int seq_buf_printf(struct seq_buf *s, const char *fmt, ...);
extern __printf(2, 0)
--
cgit v1.2.1
From 2448913ed2aa7a7424d9b9ca79861d13c746a3f1 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Mon, 3 Nov 2014 18:53:50 -0500
Subject: seq-buf: Make seq_buf_bprintf() conditional on CONFIG_BINARY_PRINTF
The function bstr_printf() from lib/vsprnintf.c is only available if
CONFIG_BINARY_PRINTF is defined. This is due to the only user currently
being the tracing infrastructure, which needs to select this config
when tracing is configured. Until there is another user of the binary
printf formats, this will continue to be the case.
Since seq_buf.c is now lives in lib/ and is compiled even without
tracing, it must encompass its use of bstr_printf() which is used
by seq_buf_printf(). This too is only used by the tracing infrastructure
and is still encapsulated by the CONFIG_BINARY_PRINTF.
Link: http://lkml.kernel.org/r/20141104160222.969013383@goodmis.org
Tested-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/seq_buf.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index 12c64282aa98..9aafe0e24c68 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -115,8 +115,6 @@ extern __printf(2, 3)
int seq_buf_printf(struct seq_buf *s, const char *fmt, ...);
extern __printf(2, 0)
int seq_buf_vprintf(struct seq_buf *s, const char *fmt, va_list args);
-extern int
-seq_buf_bprintf(struct seq_buf *s, const char *fmt, const u32 *binary);
extern int seq_buf_print_seq(struct seq_file *m, struct seq_buf *s);
extern int seq_buf_to_user(struct seq_buf *s, char __user *ubuf,
int cnt);
@@ -130,4 +128,9 @@ extern int seq_buf_path(struct seq_buf *s, const struct path *path, const char *
extern int seq_buf_bitmask(struct seq_buf *s, const unsigned long *maskp,
int nmaskbits);
+#ifdef CONFIG_BINARY_PRINTF
+extern int
+seq_buf_bprintf(struct seq_buf *s, const char *fmt, const u32 *binary);
+#endif
+
#endif /* _LINUX_SEQ_BUF_H */
--
cgit v1.2.1
From afdc34a3d3b823a12a93b822ee1efb566f884032 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Thu, 19 Jun 2014 17:33:31 -0400
Subject: printk: Add per_cpu printk func to allow printk to be diverted
Being able to divert printk to call another function besides the normal
logging is useful for such things like NMI handling. If some functions
are to be called from NMI that does printk() it is possible to lock up
the box if the nmi handler triggers when another printk is happening.
One example of this use is to perform a stack trace on all CPUs via NMI.
But if the NMI is to do the printk() it can cause the system to lock up.
By allowing the printk to be diverted to another function that can safely
record the printk output and then print it when it in a safe context
then NMIs will be safe to call these functions like show_regs().
Link: http://lkml.kernel.org/p/20140619213952.209176403@goodmis.org
Tested-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/percpu.h | 3 +++
include/linux/printk.h | 2 ++
2 files changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index a3aa63e47637..ba2e85a0ff5b 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -134,4 +134,7 @@ extern phys_addr_t per_cpu_ptr_to_phys(void *addr);
(typeof(type) __percpu *)__alloc_percpu(sizeof(type), \
__alignof__(type))
+/* To avoid include hell, as printk can not declare this, we declare it here */
+DECLARE_PER_CPU(printk_func_t, printk_func);
+
#endif /* __LINUX_PERCPU_H */
diff --git a/include/linux/printk.h b/include/linux/printk.h
index d78125f73ac4..3bbd979d32fb 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -162,6 +162,8 @@ extern int kptr_restrict;
extern void wake_up_klogd(void);
+typedef int(*printk_func_t)(const char *fmt, va_list args);
+
void log_buf_kexec_setup(void);
void __init setup_log_buf(int early);
void dump_stack_set_arch_desc(const char *fmt, ...);
--
cgit v1.2.1
From 62d956dc3e11138c5ffd4b2c62e4f909c5180a12 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Mon, 20 Oct 2014 10:46:14 +0200
Subject: mtd: nand: provide detailed description for raw read/write page
methods
read_page_raw and write_page_raw method description is not clear enough.
It clearly specifies that ECC correction should not be involved but does
not talk about specific layout (by layout I mean where in-band and
out-of-band data are stored on the NAND media) used by NAND/ECC
controllers.
Those specific layouts might impact MTD users and thus should be hidden (as
already done in the standard NAND_ECC_HW_SYNDROME implementation).
Clearly state this constraint in the nand_ecc_ctrl struct documentation.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/nand.h | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index e4d451e4600b..b14d190b593a 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -455,8 +455,21 @@ struct nand_hw_control {
* be provided if an hardware ECC is available
* @calculate: function for ECC calculation or readback from ECC hardware
* @correct: function for ECC correction, matching to ECC generator (sw/hw)
- * @read_page_raw: function to read a raw page without ECC
- * @write_page_raw: function to write a raw page without ECC
+ * @read_page_raw: function to read a raw page without ECC. This function
+ * should hide the specific layout used by the ECC
+ * controller and always return contiguous in-band and
+ * out-of-band data even if they're not stored
+ * contiguously on the NAND chip (e.g.
+ * NAND_ECC_HW_SYNDROME interleaves in-band and
+ * out-of-band data).
+ * @write_page_raw: function to write a raw page without ECC. This function
+ * should hide the specific layout used by the ECC
+ * controller and consider the passed data as contiguous
+ * in-band and out-of-band data. ECC controller is
+ * responsible for doing the appropriate transformations
+ * to adapt to its specific layout (e.g.
+ * NAND_ECC_HW_SYNDROME interleaves in-band and
+ * out-of-band data).
* @read_page: function to read a page according to the ECC generator
* requirements; returns maximum number of bitflips corrected in
* any single ECC step, 0 if bitflips uncorrectable, -EIO hw error
--
cgit v1.2.1
From 3943f42c11896ce82ad3da132c8a5630313bdd0e Mon Sep 17 00:00:00 2001
From: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Date: Fri, 14 Nov 2014 05:09:55 +0400
Subject: Replace mentions of "list_struct" to "list_head"
There's no such thing as "list_struct".
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/list.h | 34 +++++++++++++++++-----------------
include/linux/plist.h | 10 +++++-----
include/linux/rculist.h | 8 ++++----
3 files changed, 26 insertions(+), 26 deletions(-)
(limited to 'include')
diff --git a/include/linux/list.h b/include/linux/list.h
index f33f831eb3c8..feb773c76ee0 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -346,7 +346,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_entry - get the struct for this entry
* @ptr: the &struct list_head pointer.
* @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*/
#define list_entry(ptr, type, member) \
container_of(ptr, type, member)
@@ -355,7 +355,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_first_entry - get the first element from a list
* @ptr: the list head to take the element from.
* @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Note, that list is expected to be not empty.
*/
@@ -366,7 +366,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_last_entry - get the last element from a list
* @ptr: the list head to take the element from.
* @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Note, that list is expected to be not empty.
*/
@@ -377,7 +377,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_first_entry_or_null - get the first element from a list
* @ptr: the list head to take the element from.
* @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Note that if the list is empty, it returns NULL.
*/
@@ -387,7 +387,7 @@ static inline void list_splice_tail_init(struct list_head *list,
/**
* list_next_entry - get the next element in list
* @pos: the type * to cursor
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*/
#define list_next_entry(pos, member) \
list_entry((pos)->member.next, typeof(*(pos)), member)
@@ -395,7 +395,7 @@ static inline void list_splice_tail_init(struct list_head *list,
/**
* list_prev_entry - get the prev element in list
* @pos: the type * to cursor
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*/
#define list_prev_entry(pos, member) \
list_entry((pos)->member.prev, typeof(*(pos)), member)
@@ -441,7 +441,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_for_each_entry - iterate over list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*/
#define list_for_each_entry(pos, head, member) \
for (pos = list_first_entry(head, typeof(*pos), member); \
@@ -452,7 +452,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_for_each_entry_reverse - iterate backwards over list of given type.
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*/
#define list_for_each_entry_reverse(pos, head, member) \
for (pos = list_last_entry(head, typeof(*pos), member); \
@@ -463,7 +463,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_prepare_entry - prepare a pos entry for use in list_for_each_entry_continue()
* @pos: the type * to use as a start point
* @head: the head of the list
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Prepares a pos entry for use as a start point in list_for_each_entry_continue().
*/
@@ -474,7 +474,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_for_each_entry_continue - continue iteration over list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Continue to iterate over list of given type, continuing after
* the current position.
@@ -488,7 +488,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_for_each_entry_continue_reverse - iterate backwards from the given point
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Start to iterate over list of given type backwards, continuing after
* the current position.
@@ -502,7 +502,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_for_each_entry_from - iterate over list of given type from the current point
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Iterate over list of given type, continuing from current position.
*/
@@ -515,7 +515,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* @pos: the type * to use as a loop cursor.
* @n: another type * to use as temporary storage
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*/
#define list_for_each_entry_safe(pos, n, head, member) \
for (pos = list_first_entry(head, typeof(*pos), member), \
@@ -528,7 +528,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* @pos: the type * to use as a loop cursor.
* @n: another type * to use as temporary storage
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Iterate over list of given type, continuing after current point,
* safe against removal of list entry.
@@ -544,7 +544,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* @pos: the type * to use as a loop cursor.
* @n: another type * to use as temporary storage
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Iterate over list of given type from current point, safe against
* removal of list entry.
@@ -559,7 +559,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* @pos: the type * to use as a loop cursor.
* @n: another type * to use as temporary storage
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Iterate backwards over list of given type, safe against removal
* of list entry.
@@ -574,7 +574,7 @@ static inline void list_splice_tail_init(struct list_head *list,
* list_safe_reset_next - reset a stale list_for_each_entry_safe loop
* @pos: the loop cursor used in the list_for_each_entry_safe loop
* @n: temporary storage used in list_for_each_entry_safe
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* list_safe_reset_next is not safe to use in general if the list may be
* modified concurrently (eg. the lock is dropped in the loop body). An
diff --git a/include/linux/plist.h b/include/linux/plist.h
index 8b6c970cff6c..97883604a3c5 100644
--- a/include/linux/plist.h
+++ b/include/linux/plist.h
@@ -176,7 +176,7 @@ extern void plist_requeue(struct plist_node *node, struct plist_head *head);
* plist_for_each_entry - iterate over list of given type
* @pos: the type * to use as a loop counter
* @head: the head for your list
- * @mem: the name of the list_struct within the struct
+ * @mem: the name of the list_head within the struct
*/
#define plist_for_each_entry(pos, head, mem) \
list_for_each_entry(pos, &(head)->node_list, mem.node_list)
@@ -185,7 +185,7 @@ extern void plist_requeue(struct plist_node *node, struct plist_head *head);
* plist_for_each_entry_continue - continue iteration over list of given type
* @pos: the type * to use as a loop cursor
* @head: the head for your list
- * @m: the name of the list_struct within the struct
+ * @m: the name of the list_head within the struct
*
* Continue to iterate over list of given type, continuing after
* the current position.
@@ -198,7 +198,7 @@ extern void plist_requeue(struct plist_node *node, struct plist_head *head);
* @pos: the type * to use as a loop counter
* @n: another type * to use as temporary storage
* @head: the head for your list
- * @m: the name of the list_struct within the struct
+ * @m: the name of the list_head within the struct
*
* Iterate over list of given type, safe against removal of list entry.
*/
@@ -229,7 +229,7 @@ static inline int plist_node_empty(const struct plist_node *node)
* plist_first_entry - get the struct for the first entry
* @head: the &struct plist_head pointer
* @type: the type of the struct this is embedded in
- * @member: the name of the list_struct within the struct
+ * @member: the name of the list_head within the struct
*/
#ifdef CONFIG_DEBUG_PI_LIST
# define plist_first_entry(head, type, member) \
@@ -246,7 +246,7 @@ static inline int plist_node_empty(const struct plist_node *node)
* plist_last_entry - get the struct for the last entry
* @head: the &struct plist_head pointer
* @type: the type of the struct this is embedded in
- * @member: the name of the list_struct within the struct
+ * @member: the name of the list_head within the struct
*/
#ifdef CONFIG_DEBUG_PI_LIST
# define plist_last_entry(head, type, member) \
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 372ad5e0dcb8..664060bd2f43 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -241,7 +241,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list_entry_rcu - get the struct for this entry
* @ptr: the &struct list_head pointer.
* @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* This primitive may safely run concurrently with the _rcu list-mutation
* primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock().
@@ -278,7 +278,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list_first_or_null_rcu - get the first element from a list
* @ptr: the list head to take the element from.
* @type: the type of the struct this is embedded in.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Note that if the list is empty, it returns NULL.
*
@@ -296,7 +296,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list_for_each_entry_rcu - iterate over rcu list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* This list-traversal primitive may safely run concurrently with
* the _rcu list-mutation primitives such as list_add_rcu()
@@ -311,7 +311,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list_for_each_entry_continue_rcu - continue iteration over list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
- * @member: the name of the list_struct within the struct.
+ * @member: the name of the list_head within the struct.
*
* Continue to iterate over list of given type, continuing after
* the current position.
--
cgit v1.2.1
From f9df89d897ee0928aa4e03b30250e87f5d1e788a Mon Sep 17 00:00:00 2001
From: Eduardo Valentin <eduardo.valentin@ti.com>
Date: Mon, 6 Jan 2014 09:04:18 -0400
Subject: thermal: introduce clock cooling device
This patch introduces a new thermal cooling device based on common clock
framework. The original motivation to write this cooling device is to be
able to cool down thermal zones using clocks that feed co-processors, such
as GPUs, DSPs, Image Processing Co-processors, etc. But it is written
in a way that it can be used on top of any clock.
The implementation is pretty straight forward. The code creates
a thermal cooling device based on a pair of a struct device and a clock name.
The struct device is assumed to be usable by the OPP layer. The OPP layer
is used as source of the list of possible frequencies. The (cpufreq) frequency
table is then used as a map from frequencies to cooling states. Cooling
states are indexes to the frequency table.
The logic sits on top of common clock framework, specifically on clock
pre notifications. Any PRE_RATE_CHANGE is hijacked, and the transition is
only allowed when the new rate is within the thermal limit (cooling state -> freq).
When a thermal cooling device state transition is requested, the clock
is also checked to verify if the current clock rate is within the new
thermal limit.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Len Brown <len.brown@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-pm@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/linux/clock_cooling.h | 65 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
create mode 100644 include/linux/clock_cooling.h
(limited to 'include')
diff --git a/include/linux/clock_cooling.h b/include/linux/clock_cooling.h
new file mode 100644
index 000000000000..4d1019d56f7f
--- /dev/null
+++ b/include/linux/clock_cooling.h
@@ -0,0 +1,65 @@
+/*
+ * linux/include/linux/clock_cooling.h
+ *
+ * Copyright (C) 2014 Eduardo Valentin <edubezval@gmail.com>
+ *
+ * Copyright (C) 2013 Texas Instruments Inc.
+ * Contact: Eduardo Valentin <eduardo.valentin@ti.com>
+ *
+ * Highly based on cpu_cooling.c.
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
+ * Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef __CPU_COOLING_H__
+#define __CPU_COOLING_H__
+
+#include <linux/of.h>
+#include <linux/thermal.h>
+#include <linux/cpumask.h>
+
+#ifdef CONFIG_CLOCK_THERMAL
+/**
+ * clock_cooling_register - function to create clock cooling device.
+ * @dev: struct device pointer to the device used as clock cooling device.
+ * @clock_name: string containing the clock used as cooling mechanism.
+ */
+struct thermal_cooling_device *
+clock_cooling_register(struct device *dev, const char *clock_name);
+
+/**
+ * clock_cooling_unregister - function to remove clock cooling device.
+ * @cdev: thermal cooling device pointer.
+ */
+void clock_cooling_unregister(struct thermal_cooling_device *cdev);
+
+unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
+ unsigned long freq);
+#else /* !CONFIG_CLOCK_THERMAL */
+static inline struct thermal_cooling_device *
+clock_cooling_register(struct device *dev, const char *clock_name)
+{
+ return NULL;
+}
+static inline
+void clock_cooling_unregister(struct thermal_cooling_device *cdev)
+{
+}
+static inline
+unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
+ unsigned long freq)
+{
+ return THERMAL_CSTATE_INVALID;
+}
+#endif /* CONFIG_CLOCK_THERMAL */
+
+#endif /* __CPU_COOLING_H__ */
--
cgit v1.2.1
From 0199e9938f2c0e7f5476f5983f1763d28f049837 Mon Sep 17 00:00:00 2001
From: Mikko Perttunen <mperttunen@nvidia.com>
Date: Fri, 26 Sep 2014 12:43:10 +0300
Subject: of: Add bindings for nvidia,tegra124-soctherm
This adds binding documentation and headers for the Tegra124
SOCTHERM device tree node.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/dt-bindings/thermal/tegra124-soctherm.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
create mode 100644 include/dt-bindings/thermal/tegra124-soctherm.h
(limited to 'include')
diff --git a/include/dt-bindings/thermal/tegra124-soctherm.h b/include/dt-bindings/thermal/tegra124-soctherm.h
new file mode 100644
index 000000000000..85aaf66690f9
--- /dev/null
+++ b/include/dt-bindings/thermal/tegra124-soctherm.h
@@ -0,0 +1,13 @@
+/*
+ * This header provides constants for binding nvidia,tegra124-soctherm.
+ */
+
+#ifndef _DT_BINDINGS_THERMAL_TEGRA124_SOCTHERM_H
+#define _DT_BINDINGS_THERMAL_TEGRA124_SOCTHERM_H
+
+#define TEGRA124_SOCTHERM_SENSOR_CPU 0
+#define TEGRA124_SOCTHERM_SENSOR_MEM 1
+#define TEGRA124_SOCTHERM_SENSOR_GPU 2
+#define TEGRA124_SOCTHERM_SENSOR_PLLX 3
+
+#endif
--
cgit v1.2.1
From 2251aef64a38db60f4ae7a4a83f9203c6791f196 Mon Sep 17 00:00:00 2001
From: Eduardo Valentin <edubezval@gmail.com>
Date: Fri, 7 Nov 2014 21:24:39 -0400
Subject: thermal: of: improve of-thermal sensor registration API
Different drivers request API extensions in of-thermal. For this reason,
additional callbacks are required to fit the new drivers needs.
The current API implementation expects the registering sensor driver
to provide a get_temp and get_trend callbacks as function parameters.
As the amount of callbacks is growing, this patch changes the existing
implementation to use a .ops field to hold all the of thermal callbacks
to sensor drivers.
This patch also changes the existing of-thermal users to fit the new
API design. No functional change is introduced in this patch.
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: devicetree@vger.kernel.org
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: lm-sensors@lm-sensors.org
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
Reviewed-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/linux/thermal.h | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index ef90838b36a0..5bc28a70014e 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -289,19 +289,31 @@ struct thermal_genl_event {
enum events event;
};
+/**
+ * struct thermal_zone_of_device_ops - scallbacks for handling DT based zones
+ *
+ * Mandatory:
+ * @get_temp: a pointer to a function that reads the sensor temperature.
+ *
+ * Optional:
+ * @get_trend: a pointer to a function that reads the sensor temperature trend.
+ */
+struct thermal_zone_of_device_ops {
+ int (*get_temp)(void *, long *);
+ int (*get_trend)(void *, long *);
+};
+
/* Function declarations */
#ifdef CONFIG_THERMAL_OF
struct thermal_zone_device *
-thermal_zone_of_sensor_register(struct device *dev, int id,
- void *data, int (*get_temp)(void *, long *),
- int (*get_trend)(void *, long *));
+thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
+ const struct thermal_zone_of_device_ops *ops);
void thermal_zone_of_sensor_unregister(struct device *dev,
struct thermal_zone_device *tz);
#else
static inline struct thermal_zone_device *
-thermal_zone_of_sensor_register(struct device *dev, int id,
- void *data, int (*get_temp)(void *, long *),
- int (*get_trend)(void *, long *))
+thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
+ const struct thermal_zone_of_device_ops *ops)
{
return NULL;
}
--
cgit v1.2.1
From e639cd5bfc03de7ba642d7e8570b9e533f10e54b Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 20 Nov 2014 12:11:25 -0800
Subject: ARM: OMAP2+: Prepare to move GPMC to drivers by platform data header
We still need to support platform data for omap3 until it's booting
in device tree only mode. So let's add platform_data/omap-gpmc.h for
that, and a minimal linux/omap-gpmc.h for the save and restore used
by the PM code.
Let's also keep a minimal mach-omap2/gpmc.h still around to avoid
churn on the board-*.c files. Once omap3 boots in device tree only
mode, we can drop mach-omap2/gpmc.h and we can make the data
structures in platform_data/omap-gpmc.h private to the GPMC driver.
Note that we can now also remove gpmc-nand.h and gpmc-onenand.h.
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
include/linux/omap-gpmc.h | 199 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 199 insertions(+)
create mode 100644 include/linux/omap-gpmc.h
(limited to 'include')
diff --git a/include/linux/omap-gpmc.h b/include/linux/omap-gpmc.h
new file mode 100644
index 000000000000..c2080eebbb47
--- /dev/null
+++ b/include/linux/omap-gpmc.h
@@ -0,0 +1,199 @@
+/*
+ * OMAP GPMC (General Purpose Memory Controller) defines
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+/* Maximum Number of Chip Selects */
+#define GPMC_CS_NUM 8
+
+#define GPMC_CONFIG_WP 0x00000005
+
+#define GPMC_IRQ_FIFOEVENTENABLE 0x01
+#define GPMC_IRQ_COUNT_EVENT 0x02
+
+#define GPMC_BURST_4 4 /* 4 word burst */
+#define GPMC_BURST_8 8 /* 8 word burst */
+#define GPMC_BURST_16 16 /* 16 word burst */
+#define GPMC_DEVWIDTH_8BIT 1 /* 8-bit device width */
+#define GPMC_DEVWIDTH_16BIT 2 /* 16-bit device width */
+#define GPMC_MUX_AAD 1 /* Addr-Addr-Data multiplex */
+#define GPMC_MUX_AD 2 /* Addr-Data multiplex */
+
+/* bool type time settings */
+struct gpmc_bool_timings {
+ bool cycle2cyclediffcsen;
+ bool cycle2cyclesamecsen;
+ bool we_extra_delay;
+ bool oe_extra_delay;
+ bool adv_extra_delay;
+ bool cs_extra_delay;
+ bool time_para_granularity;
+};
+
+/*
+ * Note that all values in this struct are in nanoseconds except sync_clk
+ * (which is in picoseconds), while the register values are in gpmc_fck cycles.
+ */
+struct gpmc_timings {
+ /* Minimum clock period for synchronous mode (in picoseconds) */
+ u32 sync_clk;
+
+ /* Chip-select signal timings corresponding to GPMC_CS_CONFIG2 */
+ u32 cs_on; /* Assertion time */
+ u32 cs_rd_off; /* Read deassertion time */
+ u32 cs_wr_off; /* Write deassertion time */
+
+ /* ADV signal timings corresponding to GPMC_CONFIG3 */
+ u32 adv_on; /* Assertion time */
+ u32 adv_rd_off; /* Read deassertion time */
+ u32 adv_wr_off; /* Write deassertion time */
+
+ /* WE signals timings corresponding to GPMC_CONFIG4 */
+ u32 we_on; /* WE assertion time */
+ u32 we_off; /* WE deassertion time */
+
+ /* OE signals timings corresponding to GPMC_CONFIG4 */
+ u32 oe_on; /* OE assertion time */
+ u32 oe_off; /* OE deassertion time */
+
+ /* Access time and cycle time timings corresponding to GPMC_CONFIG5 */
+ u32 page_burst_access; /* Multiple access word delay */
+ u32 access; /* Start-cycle to first data valid delay */
+ u32 rd_cycle; /* Total read cycle time */
+ u32 wr_cycle; /* Total write cycle time */
+
+ u32 bus_turnaround;
+ u32 cycle2cycle_delay;
+
+ u32 wait_monitoring;
+ u32 clk_activation;
+
+ /* The following are only on OMAP3430 */
+ u32 wr_access; /* WRACCESSTIME */
+ u32 wr_data_mux_bus; /* WRDATAONADMUXBUS */
+
+ struct gpmc_bool_timings bool_timings;
+};
+
+/* Device timings in picoseconds */
+struct gpmc_device_timings {
+ u32 t_ceasu; /* address setup to CS valid */
+ u32 t_avdasu; /* address setup to ADV valid */
+ /* XXX: try to combine t_avdp_r & t_avdp_w. Issue is
+ * of tusb using these timings even for sync whilst
+ * ideally for adv_rd/(wr)_off it should have considered
+ * t_avdh instead. This indirectly necessitates r/w
+ * variations of t_avdp as it is possible to have one
+ * sync & other async
+ */
+ u32 t_avdp_r; /* ADV low time (what about t_cer ?) */
+ u32 t_avdp_w;
+ u32 t_aavdh; /* address hold time */
+ u32 t_oeasu; /* address setup to OE valid */
+ u32 t_aa; /* access time from ADV assertion */
+ u32 t_iaa; /* initial access time */
+ u32 t_oe; /* access time from OE assertion */
+ u32 t_ce; /* access time from CS asertion */
+ u32 t_rd_cycle; /* read cycle time */
+ u32 t_cez_r; /* read CS deassertion to high Z */
+ u32 t_cez_w; /* write CS deassertion to high Z */
+ u32 t_oez; /* OE deassertion to high Z */
+ u32 t_weasu; /* address setup to WE valid */
+ u32 t_wpl; /* write assertion time */
+ u32 t_wph; /* write deassertion time */
+ u32 t_wr_cycle; /* write cycle time */
+
+ u32 clk;
+ u32 t_bacc; /* burst access valid clock to output delay */
+ u32 t_ces; /* CS setup time to clk */
+ u32 t_avds; /* ADV setup time to clk */
+ u32 t_avdh; /* ADV hold time from clk */
+ u32 t_ach; /* address hold time from clk */
+ u32 t_rdyo; /* clk to ready valid */
+
+ u32 t_ce_rdyz; /* XXX: description ?, or use t_cez instead */
+ u32 t_ce_avd; /* CS on to ADV on delay */
+
+ /* XXX: check the possibility of combining
+ * cyc_aavhd_oe & cyc_aavdh_we
+ */
+ u8 cyc_aavdh_oe;/* read address hold time in cycles */
+ u8 cyc_aavdh_we;/* write address hold time in cycles */
+ u8 cyc_oe; /* access time from OE assertion in cycles */
+ u8 cyc_wpl; /* write deassertion time in cycles */
+ u32 cyc_iaa; /* initial access time in cycles */
+
+ /* extra delays */
+ bool ce_xdelay;
+ bool avd_xdelay;
+ bool oe_xdelay;
+ bool we_xdelay;
+};
+
+struct gpmc_settings {
+ bool burst_wrap; /* enables wrap bursting */
+ bool burst_read; /* enables read page/burst mode */
+ bool burst_write; /* enables write page/burst mode */
+ bool device_nand; /* device is NAND */
+ bool sync_read; /* enables synchronous reads */
+ bool sync_write; /* enables synchronous writes */
+ bool wait_on_read; /* monitor wait on reads */
+ bool wait_on_write; /* monitor wait on writes */
+ u32 burst_len; /* page/burst length */
+ u32 device_width; /* device bus width (8 or 16 bit) */
+ u32 mux_add_data; /* multiplex address & data */
+ u32 wait_pin; /* wait-pin to be used */
+};
+
+extern int gpmc_calc_timings(struct gpmc_timings *gpmc_t,
+ struct gpmc_settings *gpmc_s,
+ struct gpmc_device_timings *dev_t);
+
+struct gpmc_nand_regs;
+struct device_node;
+
+extern void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs);
+extern int gpmc_get_client_irq(unsigned irq_config);
+
+extern unsigned int gpmc_ticks_to_ns(unsigned int ticks);
+
+extern void gpmc_cs_write_reg(int cs, int idx, u32 val);
+extern int gpmc_calc_divider(unsigned int sync_clk);
+extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t);
+extern int gpmc_cs_program_settings(int cs, struct gpmc_settings *p);
+extern int gpmc_cs_request(int cs, unsigned long size, unsigned long *base);
+extern void gpmc_cs_free(int cs);
+extern int gpmc_configure(int cmd, int wval);
+extern void gpmc_read_settings_dt(struct device_node *np,
+ struct gpmc_settings *p);
+
+extern void omap3_gpmc_save_context(void);
+extern void omap3_gpmc_restore_context(void);
+
+struct gpmc_timings;
+struct omap_nand_platform_data;
+struct omap_onenand_platform_data;
+
+#if IS_ENABLED(CONFIG_MTD_NAND_OMAP2)
+extern int gpmc_nand_init(struct omap_nand_platform_data *d,
+ struct gpmc_timings *gpmc_t);
+#else
+static inline int gpmc_nand_init(struct omap_nand_platform_data *d,
+ struct gpmc_timings *gpmc_t)
+{
+ return 0;
+}
+#endif
+
+#if IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2)
+extern void gpmc_onenand_init(struct omap_onenand_platform_data *d);
+#else
+#define board_onenand_data NULL
+static inline void gpmc_onenand_init(struct omap_onenand_platform_data *d)
+{
+}
+#endif
--
cgit v1.2.1
From 2fc9f6baa24ac230166df41ed636224969523341 Mon Sep 17 00:00:00 2001
From: Eryu Guan <guaneryu@gmail.com>
Date: Mon, 13 Oct 2014 12:42:12 +0800
Subject: Btrfs: return failure if btrfs_dev_replace_finishing() failed
device replace could fail due to another running scrub process or any
other errors btrfs_scrub_dev() may hit, but this failure doesn't get
returned to userspace.
The following steps could reproduce this issue
mkfs -t btrfs -f /dev/sdb1 /dev/sdb2
mount /dev/sdb1 /mnt/btrfs
while true; do btrfs scrub start -B /mnt/btrfs >/dev/null 2>&1; done &
btrfs replace start -Bf /dev/sdb2 /dev/sdb3 /mnt/btrfs
# if this replace succeeded, do the following and repeat until
# you see this log in dmesg
# BTRFS: btrfs_scrub_dev(/dev/sdb2, 2, /dev/sdb3) failed -115
#btrfs replace start -Bf /dev/sdb3 /dev/sdb2 /mnt/btrfs
# once you see the error log in dmesg, check return value of
# replace
echo $?
Introduce a new dev replace result
BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS
to catch -EINPROGRESS explicitly and return other errors directly to
userspace.
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
---
include/uapi/linux/btrfs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index 2f47824e7a36..611e1c5893b4 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -157,6 +157,7 @@ struct btrfs_ioctl_dev_replace_status_params {
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1
#define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2
+#define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS 3
struct btrfs_ioctl_dev_replace_args {
__u64 cmd; /* in */
__u64 result; /* out */
--
cgit v1.2.1
From 355a70183848f21198e9f6296bd646df3478a26d Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Thu, 20 Nov 2014 09:56:25 +0100
Subject: drm/gem: Warn on illegal use of the dumb buffer interface v2
It happens on occasion that developers of generic user-space applications
abuse the dumb buffer API to get hold of drm buffers that they can both
mmap() and use for GPU acceleration, using the assumptions that dumb buffers
and buffers available for GPU are
a) The same type and can be aribtrarily type-casted.
b) fully coherent.
This patch makes the most widely used drivers warn nicely when that happens,
the next step will be to fail.
v2: Move drmP.h changes to drm_gem.h. Fix Radeon dumb mmap breakage.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_gem.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 1e6ae1458f7a..780511a459c0 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -119,6 +119,13 @@ struct drm_gem_object {
* simply leave it as NULL.
*/
struct dma_buf_attachment *import_attach;
+
+ /**
+ * dumb - created as dumb buffer
+ * Whether the gem object was created using the dumb buffer interface
+ * as such it may not be used for GPU rendering.
+ */
+ bool dumb;
};
void drm_gem_object_release(struct drm_gem_object *obj);
--
cgit v1.2.1
From d42472ecffd7c42086c6e5b1335c99a3adf58a09 Mon Sep 17 00:00:00 2001
From: Jussi Laako <jussi@sonarnerd.net>
Date: Fri, 21 Nov 2014 16:04:46 +0200
Subject: ALSA: pcm: Add big-endian DSD sample formats and fix XMOS DSD sample
format
This patch fixes XMOS DSD sample format to DSD_U32_BE and also adds
DSD_U16_BE and DSD_U32_BE sample formats.
Signed-off-by: Jussi Laako <jussi@sonarnerd.net>
Acked-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 2 ++
include/uapi/sound/asound.h | 4 +++-
2 files changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index e862497f7556..8bb00a27e219 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -184,6 +184,8 @@ struct snd_pcm_ops {
#define SNDRV_PCM_FMTBIT_DSD_U8 _SNDRV_PCM_FMTBIT(DSD_U8)
#define SNDRV_PCM_FMTBIT_DSD_U16_LE _SNDRV_PCM_FMTBIT(DSD_U16_LE)
#define SNDRV_PCM_FMTBIT_DSD_U32_LE _SNDRV_PCM_FMTBIT(DSD_U32_LE)
+#define SNDRV_PCM_FMTBIT_DSD_U16_BE _SNDRV_PCM_FMTBIT(DSD_U16_BE)
+#define SNDRV_PCM_FMTBIT_DSD_U32_BE _SNDRV_PCM_FMTBIT(DSD_U32_BE)
#ifdef SNDRV_LITTLE_ENDIAN
#define SNDRV_PCM_FMTBIT_S16 SNDRV_PCM_FMTBIT_S16_LE
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index 6ee586728df9..941d32f007dc 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -220,7 +220,9 @@ typedef int __bitwise snd_pcm_format_t;
#define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
#define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
#define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
-#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_LE
+#define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
+#define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
+#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE
#ifdef SNDRV_LITTLE_ENDIAN
#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
--
cgit v1.2.1
From d451057464a7ea2fe400e56c8a7e004c875f2a84 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 19 Nov 2014 17:28:17 +0200
Subject: phy: safer to_phy() macro
This makes to_phy() macro work with other variable names
besides "dev".
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
include/linux/phy/phy.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 8cb6f815475b..9fda68324298 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -110,7 +110,7 @@ struct phy_init_data {
.port = _port, \
}
-#define to_phy(dev) (container_of((dev), struct phy, dev))
+#define to_phy(a) (container_of((a), struct phy, dev))
#define of_phy_provider_register(dev, xlate) \
__of_phy_provider_register((dev), THIS_MODULE, (xlate))
--
cgit v1.2.1
From b7bc15b98e843926d01eb03b9c0e196d8ddbadeb Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 19 Nov 2014 17:28:18 +0200
Subject: phy: improved lookup method
Separates registration of the phy and the lookup. The method
is copied from clkdev.c,
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
include/linux/phy/phy.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 9fda68324298..849284e5873f 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -110,6 +110,13 @@ struct phy_init_data {
.port = _port, \
}
+struct phy_lookup {
+ struct list_head node;
+ const char *dev_id;
+ const char *con_id;
+ struct phy *phy;
+};
+
#define to_phy(a) (container_of((a), struct phy, dev))
#define of_phy_provider_register(dev, xlate) \
@@ -174,6 +181,8 @@ struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
void of_phy_provider_unregister(struct phy_provider *phy_provider);
void devm_of_phy_provider_unregister(struct device *dev,
struct phy_provider *phy_provider);
+int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
+void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
#else
static inline int phy_pm_runtime_get(struct phy *phy)
{
@@ -345,6 +354,13 @@ static inline void devm_of_phy_provider_unregister(struct device *dev,
struct phy_provider *phy_provider)
{
}
+static inline int
+phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id)
+{
+ return 0;
+}
+static inline void phy_remove_lookup(struct phy *phy, const char *con_id,
+ const char *dev_id) { }
#endif
#endif /* __DRIVERS_PHY_H */
--
cgit v1.2.1
From df9f7b311db1edae7ec5e2c78aa92fce7b9dd34d Mon Sep 17 00:00:00 2001
From: Kiran Raparthy <kiran.kumar@linaro.org>
Date: Fri, 21 Nov 2014 11:31:20 +0530
Subject: usb: phy: introduce usb_phy_set_event interface
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
PHY drivers require a generic interface to handle per-PHY events.
usb_phy_set_event interface sets event to phy event.
PHY drivers call this interface for each phy event.
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: Android Kernel Team <kernel-team@android.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Arve Hj�nnev�g <arve@android.com>
Cc: Benoit Goby <benoit@android.com>
[Original patch in Android from Todd]
Cc: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Kiran Raparthy <kiran.kumar@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
include/linux/usb/phy.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index ac7d7913694f..f499c23e6342 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -209,6 +209,7 @@ extern void usb_put_phy(struct usb_phy *);
extern void devm_usb_put_phy(struct device *dev, struct usb_phy *x);
extern int usb_bind_phy(const char *dev_name, u8 index,
const char *phy_dev_name);
+extern void usb_phy_set_event(struct usb_phy *x, unsigned long event);
#else
static inline struct usb_phy *usb_get_phy(enum usb_phy_type type)
{
@@ -250,6 +251,10 @@ static inline int usb_bind_phy(const char *dev_name, u8 index,
{
return -EOPNOTSUPP;
}
+
+static inline void usb_phy_set_event(struct usb_phy *x, unsigned long event)
+{
+}
#endif
static inline int
--
cgit v1.2.1
From 04b74b27c2941e5d62120f6fee3a0a9388a30613 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 21 Nov 2014 09:16:58 -0500
Subject: printk/percpu: Define printk_func when printk is not defined
To avoid include hell, the per_cpu variable printk_func was declared
in percpu.h. But it is only defined if printk is defined.
As users of printk may also use the printk_func variable, it needs to
be defined even if CONFIG_PRINTK is not.
Also add a printk.h include in percpu.h just to be safe.
Link: http://lkml.kernel.org/r/20141121183215.01ba539c@canb.auug.org.au
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/percpu.h | 1 +
include/linux/printk.h | 4 ++--
2 files changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index ba2e85a0ff5b..caebf2a758dc 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -5,6 +5,7 @@
#include <linux/preempt.h>
#include <linux/smp.h>
#include <linux/cpumask.h>
+#include <linux/printk.h>
#include <linux/pfn.h>
#include <linux/init.h>
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 3bbd979d32fb..c69be9ee8f48 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -124,6 +124,8 @@ static inline __printf(1, 2) __cold
void early_printk(const char *s, ...) { }
#endif
+typedef int(*printk_func_t)(const char *fmt, va_list args);
+
#ifdef CONFIG_PRINTK
asmlinkage __printf(5, 0)
int vprintk_emit(int facility, int level,
@@ -162,8 +164,6 @@ extern int kptr_restrict;
extern void wake_up_klogd(void);
-typedef int(*printk_func_t)(const char *fmt, va_list args);
-
void log_buf_kexec_setup(void);
void __init setup_log_buf(int early);
void dump_stack_set_arch_desc(const char *fmt, ...);
--
cgit v1.2.1
From 6ef768fac9dfe3404d3fdc09909ea203a88f2f38 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 20 Nov 2014 13:45:31 +0100
Subject: kvm: x86: move ioapic.c and irq_comm.c back to arch/x86/
ia64 does not need them anymore. Ack notifiers become x86-specific
too.
Suggested-by: Gleb Natapov <gleb@kernel.org>
Reviewed-by: Radim Krcmar <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 22 ++++++++--------------
1 file changed, 8 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ea53b04993f2..ded64cb3a081 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -395,7 +395,6 @@ struct kvm {
* Update side is protected by irq_lock.
*/
struct kvm_irq_routing_table __rcu *irq_routing;
- struct hlist_head mask_notifier_list;
#endif
#ifdef CONFIG_HAVE_KVM_IRQFD
struct hlist_head irq_ack_notifier_list;
@@ -447,6 +446,14 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
int __must_check vcpu_load(struct kvm_vcpu *vcpu);
void vcpu_put(struct kvm_vcpu *vcpu);
+#ifdef __KVM_HAVE_IOAPIC
+void kvm_vcpu_request_scan_ioapic(struct kvm *kvm);
+#else
+static inline void kvm_vcpu_request_scan_ioapic(struct kvm *kvm)
+{
+}
+#endif
+
#ifdef CONFIG_HAVE_KVM_IRQFD
int kvm_irqfd_init(void);
void kvm_irqfd_exit(void);
@@ -736,19 +743,6 @@ struct kvm_assigned_dev_kernel {
struct pci_saved_state *pci_saved_state;
};
-struct kvm_irq_mask_notifier {
- void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
- int irq;
- struct hlist_node link;
-};
-
-void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
- struct kvm_irq_mask_notifier *kimn);
-void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
- struct kvm_irq_mask_notifier *kimn);
-void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
- bool mask);
-
int kvm_irq_map_gsi(struct kvm *kvm,
struct kvm_kernel_irq_routing_entry *entries, int gsi);
int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin);
--
cgit v1.2.1
From 6b397158d07f885154b871a15f879d25b3de7579 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@redhat.com>
Date: Thu, 20 Nov 2014 14:43:18 +0100
Subject: kvm: remove IA64 ioctls
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
KVM ia64 is no longer present so new applications shouldn't use them.
The main problem is that they most likely didn't work even before,
because of a conflict in the #defines:
#define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug)
#define KVM_IA64_VCPU_SET_STACK _IOW(KVMIO, 0x9b, void *)
The argument to KVM_SET_GUEST_DEBUG is:
struct kvm_guest_debug {
__u32 control;
__u32 pad;
struct kvm_guest_debug_arch arch;
};
struct kvm_guest_debug_arch {
};
meaning that sizeof(struct kvm_guest_debug) == sizeof(void *) == 8
and KVM_SET_GUEST_DEBUG == KVM_IA64_VCPU_SET_STACK.
KVM_SET_GUEST_DEBUG is handled in virt/kvm/kvm_main.c before even calling
kvm_arch_vcpu_ioctl (which would have handled KVM_IA64_VCPU_SET_STACK),
so KVM_IA64_VCPU_SET_STACK would just return -EINVAL.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/uapi/linux/kvm.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 6d59e5b39c9c..a37fd1224f36 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1099,9 +1099,6 @@ struct kvm_s390_ucas_mapping {
#define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64)
#define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64)
#define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce)
-/* IA64 stack access */
-#define KVM_IA64_VCPU_GET_STACK _IOR(KVMIO, 0x9a, void *)
-#define KVM_IA64_VCPU_SET_STACK _IOW(KVMIO, 0x9b, void *)
/* Available with KVM_CAP_VCPU_EVENTS */
#define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events)
#define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events)
--
cgit v1.2.1
From 860f6e9eb780443381a76e3766a9698afbc5e2e5 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 19 Nov 2014 12:59:14 +0100
Subject: net: phy: add static data field to struct phy_driver
Add static driver-data field to struct phy_driver, which can be used to
store structured device-type information.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/phy.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 07794e720139..22af8f8f5802 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -433,6 +433,7 @@ struct phy_device {
* by this PHY
* flags: A bitfield defining certain other features this PHY
* supports (like interrupts)
+ * driver_data: static driver data
*
* The drivers must implement config_aneg and read_status. All
* other functions are optional. Note that none of these
@@ -448,6 +449,7 @@ struct phy_driver {
unsigned int phy_id_mask;
u32 features;
u32 flags;
+ const void *driver_data;
/*
* Called to issue a PHY software reset
--
cgit v1.2.1
From 63f44b2bfccdd98193bbd602747f780c0fae0f02 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 19 Nov 2014 12:59:18 +0100
Subject: net: phy: micrel: add generic clock-mode-select support
Add generic RMII-Reference-Clock-Select support.
Several Micrel PHY have an RMII-Reference-Clock-Select bit to select
25 MHz or 50 MHz clock mode. Recently, support for configuring this
through device tree for KSZ8021 and KSZ8031 was added.
Generalise this support so that it can be configured for other PHY types
as well.
Note that some PHY revisions (of the same type) has this bit inverted.
This should be either configurable through a new device-tree property,
or preferably, determined based on PHY ID if possible.
Also note that this removes support for setting 25 MHz mode from board
files which was also added by the above mentioned commit 45f56cb82e45
("net/phy: micrel: Add clock support for KSZ8021/KSZ8031").
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/micrel_phy.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
index 53d33dee70e1..2e5b194b9b19 100644
--- a/include/linux/micrel_phy.h
+++ b/include/linux/micrel_phy.h
@@ -37,7 +37,6 @@
/* struct phy_device dev_flags definitions */
#define MICREL_PHY_50MHZ_CLK 0x00000001
-#define MICREL_PHY_25MHZ_CLK 0x00000002
#define MICREL_KSZ9021_EXTREG_CTRL 0xB
#define MICREL_KSZ9021_EXTREG_DATA_WRITE 0xC
--
cgit v1.2.1
From b960a0ac6939ef4962c5abbf33e80d1382b45fc1 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 19 Nov 2014 14:04:56 +0100
Subject: vlan: make __vlan_hwaccel_put_tag return void
Always returns the same skb it gets, so change to void.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_vlan.h | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index d69f0577a319..1b5dbc2711f9 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -347,13 +347,11 @@ static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb,
*
* Puts the VLAN TCI in @skb->vlan_tci and lets the device do the rest
*/
-static inline struct sk_buff *__vlan_hwaccel_put_tag(struct sk_buff *skb,
- __be16 vlan_proto,
- u16 vlan_tci)
+static inline void __vlan_hwaccel_put_tag(struct sk_buff *skb,
+ __be16 vlan_proto, u16 vlan_tci)
{
skb->vlan_proto = vlan_proto;
skb->vlan_tci = VLAN_TAG_PRESENT | vlan_tci;
- return skb;
}
/**
@@ -368,7 +366,8 @@ static inline struct sk_buff *vlan_put_tag(struct sk_buff *skb,
__be16 vlan_proto, u16 vlan_tci)
{
if (vlan_hw_offload_capable(skb->dev->features, vlan_proto)) {
- return __vlan_hwaccel_put_tag(skb, vlan_proto, vlan_tci);
+ __vlan_hwaccel_put_tag(skb, vlan_proto, vlan_tci);
+ return skb;
} else {
return __vlan_put_tag(skb, vlan_proto, vlan_tci);
}
--
cgit v1.2.1
From b4bef1b57544b18899eb15569e3bafd8d2eeeff6 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 19 Nov 2014 14:04:57 +0100
Subject: vlan: kill vlan_put_tag helper
Since both tx and rx paths work with skb->vlan_tci, there's no need for
this function anymore. Switch users directly to __vlan_hwaccel_put_tag.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_vlan.h | 19 -------------------
1 file changed, 19 deletions(-)
(limited to 'include')
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 1b5dbc2711f9..75b70a5e4a6d 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -354,25 +354,6 @@ static inline void __vlan_hwaccel_put_tag(struct sk_buff *skb,
skb->vlan_tci = VLAN_TAG_PRESENT | vlan_tci;
}
-/**
- * vlan_put_tag - inserts VLAN tag according to device features
- * @skb: skbuff to tag
- * @vlan_tci: VLAN TCI to insert
- *
- * Assumes skb->dev is the target that will xmit this frame.
- * Returns a VLAN tagged skb.
- */
-static inline struct sk_buff *vlan_put_tag(struct sk_buff *skb,
- __be16 vlan_proto, u16 vlan_tci)
-{
- if (vlan_hw_offload_capable(skb->dev->features, vlan_proto)) {
- __vlan_hwaccel_put_tag(skb, vlan_proto, vlan_tci);
- return skb;
- } else {
- return __vlan_put_tag(skb, vlan_proto, vlan_tci);
- }
-}
-
/**
* __vlan_get_tag - get the VLAN ID that is part of the payload
* @skb: skbuff to query
--
cgit v1.2.1
From 62749e2cb3c4a7da3eaa5c01a7e787aebeff8536 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 19 Nov 2014 14:04:58 +0100
Subject: vlan: rename __vlan_put_tag to vlan_insert_tag_set_proto
Name fits better. Plus there's going to be introduced
__vlan_insert_tag later on.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_vlan.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 75b70a5e4a6d..46e4a15b9b55 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -320,8 +320,9 @@ static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
}
/**
- * __vlan_put_tag - regular VLAN tag inserting
+ * vlan_insert_tag_set_proto - regular VLAN tag inserting
* @skb: skbuff to tag
+ * @vlan_proto: VLAN encapsulation protocol
* @vlan_tci: VLAN TCI to insert
*
* Inserts the VLAN tag into @skb as part of the payload
@@ -330,8 +331,9 @@ static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
* Following the skb_unshare() example, in case of error, the calling function
* doesn't have to worry about freeing the original skb.
*/
-static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb,
- __be16 vlan_proto, u16 vlan_tci)
+static inline struct sk_buff *vlan_insert_tag_set_proto(struct sk_buff *skb,
+ __be16 vlan_proto,
+ u16 vlan_tci)
{
skb = vlan_insert_tag(skb, vlan_proto, vlan_tci);
if (skb)
--
cgit v1.2.1
From 5968250c868ceee680aa77395b24e6ddcae17d36 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 19 Nov 2014 14:04:59 +0100
Subject: vlan: introduce *vlan_hwaccel_push_inside helpers
Use them to push skb->vlan_tci into the payload and avoid code
duplication.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_vlan.h | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
(limited to 'include')
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 46e4a15b9b55..291e6706876e 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -341,6 +341,40 @@ static inline struct sk_buff *vlan_insert_tag_set_proto(struct sk_buff *skb,
return skb;
}
+/*
+ * __vlan_hwaccel_push_inside - pushes vlan tag to the payload
+ * @skb: skbuff to tag
+ *
+ * Pushes the VLAN tag from @skb->vlan_tci inside to the payload.
+ *
+ * Following the skb_unshare() example, in case of error, the calling function
+ * doesn't have to worry about freeing the original skb.
+ */
+static inline struct sk_buff *__vlan_hwaccel_push_inside(struct sk_buff *skb)
+{
+ skb = vlan_insert_tag_set_proto(skb, skb->vlan_proto,
+ vlan_tx_tag_get(skb));
+ if (likely(skb))
+ skb->vlan_tci = 0;
+ return skb;
+}
+/*
+ * vlan_hwaccel_push_inside - pushes vlan tag to the payload
+ * @skb: skbuff to tag
+ *
+ * Checks is tag is present in @skb->vlan_tci and if it is, it pushes the
+ * VLAN tag from @skb->vlan_tci inside to the payload.
+ *
+ * Following the skb_unshare() example, in case of error, the calling function
+ * doesn't have to worry about freeing the original skb.
+ */
+static inline struct sk_buff *vlan_hwaccel_push_inside(struct sk_buff *skb)
+{
+ if (vlan_tx_tag_present(skb))
+ skb = __vlan_hwaccel_push_inside(skb);
+ return skb;
+}
+
/**
* __vlan_hwaccel_put_tag - hardware accelerated VLAN inserting
* @skb: skbuff to tag
--
cgit v1.2.1
From 15255a43e6c917813800702e100267046e240cc0 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 19 Nov 2014 14:05:00 +0100
Subject: vlan: introduce __vlan_insert_tag helper which does not free skb
There's a need for helper which inserts vlan tag but does not free the
skb in case of an error.
Suggested-by: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_vlan.h | 45 ++++++++++++++++++++++++++++++++++-----------
1 file changed, 34 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 291e6706876e..515a35e2a48a 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -282,28 +282,24 @@ static inline bool vlan_hw_offload_capable(netdev_features_t features,
}
/**
- * vlan_insert_tag - regular VLAN tag inserting
+ * __vlan_insert_tag - regular VLAN tag inserting
* @skb: skbuff to tag
* @vlan_proto: VLAN encapsulation protocol
* @vlan_tci: VLAN TCI to insert
*
* Inserts the VLAN tag into @skb as part of the payload
- * Returns a VLAN tagged skb. If a new skb is created, @skb is freed.
- *
- * Following the skb_unshare() example, in case of error, the calling function
- * doesn't have to worry about freeing the original skb.
+ * Returns error if skb_cow_head failes.
*
* Does not change skb->protocol so this function can be used during receive.
*/
-static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
- __be16 vlan_proto, u16 vlan_tci)
+static inline int __vlan_insert_tag(struct sk_buff *skb,
+ __be16 vlan_proto, u16 vlan_tci)
{
struct vlan_ethhdr *veth;
- if (skb_cow_head(skb, VLAN_HLEN) < 0) {
- dev_kfree_skb_any(skb);
- return NULL;
- }
+ if (skb_cow_head(skb, VLAN_HLEN) < 0)
+ return -ENOMEM;
+
veth = (struct vlan_ethhdr *)skb_push(skb, VLAN_HLEN);
/* Move the mac addresses to the beginning of the new header. */
@@ -316,6 +312,33 @@ static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
/* now, the TCI */
veth->h_vlan_TCI = htons(vlan_tci);
+ return 0;
+}
+
+/**
+ * vlan_insert_tag - regular VLAN tag inserting
+ * @skb: skbuff to tag
+ * @vlan_proto: VLAN encapsulation protocol
+ * @vlan_tci: VLAN TCI to insert
+ *
+ * Inserts the VLAN tag into @skb as part of the payload
+ * Returns a VLAN tagged skb. If a new skb is created, @skb is freed.
+ *
+ * Following the skb_unshare() example, in case of error, the calling function
+ * doesn't have to worry about freeing the original skb.
+ *
+ * Does not change skb->protocol so this function can be used during receive.
+ */
+static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
+ __be16 vlan_proto, u16 vlan_tci)
+{
+ int err;
+
+ err = __vlan_insert_tag(skb, vlan_proto, vlan_tci);
+ if (err) {
+ dev_kfree_skb_any(skb);
+ return NULL;
+ }
return skb;
}
--
cgit v1.2.1
From e21951212f03b8d805795d8f71206853b2ab344d Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 19 Nov 2014 14:05:01 +0100
Subject: net: move make_writable helper into common code
note that skb_make_writable already exists in net/netfilter/core.c
but does something slightly different.
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 73c370e615de..e045516891a9 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2678,6 +2678,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet);
unsigned int skb_gso_transport_seglen(const struct sk_buff *skb);
struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
struct sk_buff *skb_vlan_untag(struct sk_buff *skb);
+int skb_ensure_writable(struct sk_buff *skb, int write_len);
struct skb_checksum_ops {
__wsum (*update)(const void *mem, int len, __wsum wsum);
--
cgit v1.2.1
From 93515d53b133d66f01aec7b231fa3e40e3d2fd9a Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 19 Nov 2014 14:05:02 +0100
Subject: net: move vlan pop/push functions into common code
So it can be used from out of openvswitch code.
Did couple of cosmetic changes on the way, namely variable naming and
adding support for 8021AD proto.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index e045516891a9..78c299f40bac 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2679,6 +2679,8 @@ unsigned int skb_gso_transport_seglen(const struct sk_buff *skb);
struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
struct sk_buff *skb_vlan_untag(struct sk_buff *skb);
int skb_ensure_writable(struct sk_buff *skb, int write_len);
+int skb_vlan_pop(struct sk_buff *skb);
+int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
struct skb_checksum_ops {
__wsum (*update)(const void *mem, int len, __wsum wsum);
--
cgit v1.2.1
From c7e2b9689ef81362a8091592da6cb6a7723f377a Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 19 Nov 2014 14:05:03 +0100
Subject: sched: introduce vlan action
This tc action allows to work with vlan tagged skbs. Two supported
sub-actions are header pop and header push.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tc_act/tc_vlan.h | 27 +++++++++++++++++++++++++++
include/uapi/linux/tc_act/tc_vlan.h | 35 +++++++++++++++++++++++++++++++++++
2 files changed, 62 insertions(+)
create mode 100644 include/net/tc_act/tc_vlan.h
create mode 100644 include/uapi/linux/tc_act/tc_vlan.h
(limited to 'include')
diff --git a/include/net/tc_act/tc_vlan.h b/include/net/tc_act/tc_vlan.h
new file mode 100644
index 000000000000..c809c1d2cea5
--- /dev/null
+++ b/include/net/tc_act/tc_vlan.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __NET_TC_VLAN_H
+#define __NET_TC_VLAN_H
+
+#include <net/act_api.h>
+
+#define VLAN_F_POP 0x1
+#define VLAN_F_PUSH 0x2
+
+struct tcf_vlan {
+ struct tcf_common common;
+ int tcfv_action;
+ __be16 tcfv_push_vid;
+ __be16 tcfv_push_proto;
+};
+#define to_vlan(a) \
+ container_of(a->priv, struct tcf_vlan, common)
+
+#endif /* __NET_TC_VLAN_H */
diff --git a/include/uapi/linux/tc_act/tc_vlan.h b/include/uapi/linux/tc_act/tc_vlan.h
new file mode 100644
index 000000000000..f7b8d448b960
--- /dev/null
+++ b/include/uapi/linux/tc_act/tc_vlan.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_TC_VLAN_H
+#define __LINUX_TC_VLAN_H
+
+#include <linux/pkt_cls.h>
+
+#define TCA_ACT_VLAN 12
+
+#define TCA_VLAN_ACT_POP 1
+#define TCA_VLAN_ACT_PUSH 2
+
+struct tc_vlan {
+ tc_gen;
+ int v_action;
+};
+
+enum {
+ TCA_VLAN_UNSPEC,
+ TCA_VLAN_TM,
+ TCA_VLAN_PARMS,
+ TCA_VLAN_PUSH_VLAN_ID,
+ TCA_VLAN_PUSH_VLAN_PROTOCOL,
+ __TCA_VLAN_MAX,
+};
+#define TCA_VLAN_MAX (__TCA_VLAN_MAX - 1)
+
+#endif
--
cgit v1.2.1
From f8b8be8a310a55856fd2c369dade08088d85df3b Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Date: Fri, 21 Nov 2014 05:25:16 -0500
Subject: ftrace, kprobes: Support IPMODIFY flag to find IP modify conflict
Introduce FTRACE_OPS_FL_IPMODIFY to avoid conflict among
ftrace users who may modify regs->ip to change the execution
path. If two or more users modify the regs->ip on the same
function entry, one of them will be broken. So they must add
IPMODIFY flag and make sure that ftrace_set_filter_ip() succeeds.
Note that ftrace doesn't allow ftrace_ops which has IPMODIFY
flag to have notrace hash, and the ftrace_ops must have a
filter hash (so that the ftrace_ops can hook only specific
entries), because it strongly depends on the address and
must be allowed for only few selected functions.
Link: http://lkml.kernel.org/r/20141121102516.11844.27829.stgit@localhost.localdomain
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Petr Mladek <pmladek@suse.cz>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
[ fixed up some of the comments ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 7b2616fa2472..ed501953f0b2 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -61,6 +61,11 @@ ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops);
/*
* FTRACE_OPS_FL_* bits denote the state of ftrace_ops struct and are
* set in the flags member.
+ * CONTROL, SAVE_REGS, SAVE_REGS_IF_SUPPORTED, RECURSION_SAFE, STUB and
+ * IPMODIFY are a kind of attribute flags which can be set only before
+ * registering the ftrace_ops, and can not be modified while registered.
+ * Changing those attribute flags after regsitering ftrace_ops will
+ * cause unexpected results.
*
* ENABLED - set/unset when ftrace_ops is registered/unregistered
* DYNAMIC - set when ftrace_ops is registered to denote dynamically
@@ -101,6 +106,10 @@ ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops);
* The ftrace_ops trampoline can be set by the ftrace users, and
* in such cases the arch must not modify it. Only the arch ftrace
* core code should set this flag.
+ * IPMODIFY - The ops can modify the IP register. This can only be set with
+ * SAVE_REGS. If another ops with this flag set is already registered
+ * for any of the functions that this ops will be registered for, then
+ * this ops will fail to register or set_filter_ip.
*/
enum {
FTRACE_OPS_FL_ENABLED = 1 << 0,
@@ -116,6 +125,7 @@ enum {
FTRACE_OPS_FL_REMOVING = 1 << 10,
FTRACE_OPS_FL_MODIFYING = 1 << 11,
FTRACE_OPS_FL_ALLOC_TRAMP = 1 << 12,
+ FTRACE_OPS_FL_IPMODIFY = 1 << 13,
};
#ifdef CONFIG_DYNAMIC_FTRACE
@@ -310,6 +320,7 @@ bool is_ftrace_trampoline(unsigned long addr);
* ENABLED - the function is being traced
* REGS - the record wants the function to save regs
* REGS_EN - the function is set up to save regs.
+ * IPMODIFY - the record allows for the IP address to be changed.
*
* When a new ftrace_ops is registered and wants a function to save
* pt_regs, the rec->flag REGS is set. When the function has been
@@ -323,10 +334,11 @@ enum {
FTRACE_FL_REGS_EN = (1UL << 29),
FTRACE_FL_TRAMP = (1UL << 28),
FTRACE_FL_TRAMP_EN = (1UL << 27),
+ FTRACE_FL_IPMODIFY = (1UL << 26),
};
-#define FTRACE_REF_MAX_SHIFT 27
-#define FTRACE_FL_BITS 5
+#define FTRACE_REF_MAX_SHIFT 26
+#define FTRACE_FL_BITS 6
#define FTRACE_FL_MASKED_BITS ((1UL << FTRACE_FL_BITS) - 1)
#define FTRACE_FL_MASK (FTRACE_FL_MASKED_BITS << FTRACE_REF_MAX_SHIFT)
#define FTRACE_REF_MAX ((1UL << FTRACE_REF_MAX_SHIFT) - 1)
--
cgit v1.2.1
From 479163f4608214d18bc3266ab6e4b578897a3052 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Thu, 20 Nov 2014 08:13:57 +0000
Subject: mlx5: don't duplicate kvfree()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx5/driver.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 246310dc8bef..b1bf41556b32 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -633,14 +633,6 @@ static inline void *mlx5_vzalloc(unsigned long size)
return rtn;
}
-static inline void mlx5_vfree(const void *addr)
-{
- if (addr && is_vmalloc_addr(addr))
- vfree(addr);
- else
- kfree(addr);
-}
-
static inline u32 mlx5_base_mkey(const u32 key)
{
return key & 0xffffff00u;
--
cgit v1.2.1
From 21f7eca555ad14e7c7b2cb59a6c6252e74ee5c8b Mon Sep 17 00:00:00 2001
From: "pang.xunlei" <pang.xunlei@linaro.org>
Date: Tue, 18 Nov 2014 19:15:16 +0800
Subject: time: Provide y2038 safe do_settimeofday() replacement
The kernel uses 32-bit signed value(time_t) for seconds elapsed
1970-01-01:00:00:00, thus it will overflow at 2038-01-19 03:14:08
on 32-bit systems. This is widely known as the y2038 problem.
As part of addressing "y2038 problem" for in-kernel uses, this patch
adds safe do_settimeofday64() using timespec64.
After this patch, do_settimeofday() is deprecated and all its call
sites will be fixed using do_settimeofday64(), after that it can be
removed.
Signed-off-by: pang.xunlei <pang.xunlei@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
include/linux/timekeeping.h | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 1caa6b04fdc5..071ad7e0c981 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -10,7 +10,7 @@ extern int timekeeping_suspended;
* Get and set timeofday
*/
extern void do_gettimeofday(struct timeval *tv);
-extern int do_settimeofday(const struct timespec *tv);
+extern int do_settimeofday64(const struct timespec64 *ts);
extern int do_sys_settimeofday(const struct timespec *tv,
const struct timezone *tz);
@@ -33,6 +33,14 @@ extern int __getnstimeofday64(struct timespec64 *tv);
extern void getnstimeofday64(struct timespec64 *tv);
#if BITS_PER_LONG == 64
+/**
+ * Deprecated. Use do_settimeofday64().
+ */
+static inline int do_settimeofday(const struct timespec *ts)
+{
+ return do_settimeofday64(ts);
+}
+
static inline int __getnstimeofday(struct timespec *ts)
{
return __getnstimeofday64(ts);
@@ -54,6 +62,17 @@ static inline void ktime_get_real_ts(struct timespec *ts)
}
#else
+/**
+ * Deprecated. Use do_settimeofday64().
+ */
+static inline int do_settimeofday(const struct timespec *ts)
+{
+ struct timespec64 ts64;
+
+ ts64 = timespec_to_timespec64(*ts);
+ return do_settimeofday64(&ts64);
+}
+
static inline int __getnstimeofday(struct timespec *ts)
{
struct timespec64 ts64;
--
cgit v1.2.1
From 04d9089086a8231ddc69a9f3f25e971a3c1d25e6 Mon Sep 17 00:00:00 2001
From: "pang.xunlei" <pang.xunlei@linaro.org>
Date: Tue, 18 Nov 2014 19:15:17 +0800
Subject: time: Provide y2038 safe timekeeping_inject_sleeptime() replacement
As part of addressing "y2038 problem" for in-kernel uses, this
patch adds timekeeping_inject_sleeptime64() using timespec64.
After this patch, timekeeping_inject_sleeptime() is deprecated
and all its call sites will be fixed using the new interface,
after that it can be removed.
NOTE: timekeeping_inject_sleeptime() is safe actually, but we
want to eliminate timespec eventually, so comes this patch.
Signed-off-by: pang.xunlei <pang.xunlei@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
include/linux/timekeeping.h | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 071ad7e0c981..6d76c6502892 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -201,7 +201,18 @@ static inline void timekeeping_clocktai(struct timespec *ts)
/*
* RTC specific
*/
-extern void timekeeping_inject_sleeptime(struct timespec *delta);
+extern void timekeeping_inject_sleeptime64(struct timespec64 *delta);
+
+/**
+ * Deprecated. Use timekeeping_inject_sleeptime64().
+ */
+static inline void timekeeping_inject_sleeptime(struct timespec *delta)
+{
+ struct timespec64 delta64;
+
+ delta64 = timespec_to_timespec64(*delta);
+ timekeeping_inject_sleeptime64(&delta64);
+}
/*
* PPS accessor
--
cgit v1.2.1
From 90b6ce9c4066e0b2098dff65e52e6e7df1a51079 Mon Sep 17 00:00:00 2001
From: "pang.xunlei" <pang.xunlei@linaro.org>
Date: Tue, 18 Nov 2014 19:15:18 +0800
Subject: time: Provide y2038 safe mktime() replacement
As part of addressing "y2038 problem" for in-kernel uses, this
patch adds safe mktime64() using time64_t.
After this patch, mktime() is deprecated and all its call sites
will be fixed using mktime64(), after that it can be removed.
Signed-off-by: pang.xunlei <pang.xunlei@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
include/linux/time.h | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/time.h b/include/linux/time.h
index 8c42cf8d2444..203c2ad40d71 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -39,9 +39,20 @@ static inline int timeval_compare(const struct timeval *lhs, const struct timeva
return lhs->tv_usec - rhs->tv_usec;
}
-extern unsigned long mktime(const unsigned int year, const unsigned int mon,
- const unsigned int day, const unsigned int hour,
- const unsigned int min, const unsigned int sec);
+extern time64_t mktime64(const unsigned int year, const unsigned int mon,
+ const unsigned int day, const unsigned int hour,
+ const unsigned int min, const unsigned int sec);
+
+/**
+ * Deprecated. Use mktime64().
+ */
+static inline unsigned long mktime(const unsigned int year,
+ const unsigned int mon, const unsigned int day,
+ const unsigned int hour, const unsigned int min,
+ const unsigned int sec)
+{
+ return mktime64(year, mon, day, hour, min, sec);
+}
extern void set_normalized_timespec(struct timespec *ts, time_t sec, s64 nsec);
--
cgit v1.2.1
From cdba2ec538d9843c42cac15ff4ec54dc2ac53f8a Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Fri, 7 Nov 2014 11:03:20 -0800
Subject: time: Expose getrawmonotonic64 for in-kernel uses
Adds a timespec64 based getrawmonotonic64() implementation
that can be used as we convert internal users of
getrawmonotonic away from using timespecs.
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
include/linux/timekeeping.h | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 6d76c6502892..e40a8d60fb21 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -26,7 +26,7 @@ struct timespec __current_kernel_time(void);
* timespec based interfaces
*/
struct timespec get_monotonic_coarse(void);
-extern void getrawmonotonic(struct timespec *ts);
+extern void getrawmonotonic64(struct timespec64 *ts);
extern void ktime_get_ts64(struct timespec64 *ts);
extern int __getnstimeofday64(struct timespec64 *tv);
@@ -61,6 +61,11 @@ static inline void ktime_get_real_ts(struct timespec *ts)
getnstimeofday64(ts);
}
+static inline void getrawmonotonic(struct timespec *ts)
+{
+ getrawmonotonic64(ts);
+}
+
#else
/**
* Deprecated. Use do_settimeofday64().
@@ -105,6 +110,14 @@ static inline void ktime_get_real_ts(struct timespec *ts)
getnstimeofday64(&ts64);
*ts = timespec64_to_timespec(ts64);
}
+
+static inline void getrawmonotonic(struct timespec *ts)
+{
+ struct timespec64 ts64;
+
+ getrawmonotonic64(&ts64);
+ *ts = timespec64_to_timespec(ts64);
+}
#endif
extern void getboottime(struct timespec *ts);
--
cgit v1.2.1
From 334334b5f577a2255e29d2352d53197d9b796511 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Fri, 7 Nov 2014 11:20:40 -0800
Subject: time: Expose get_monotonic_coarse64() for in-kernel uses
Adds a timespec64 based get_monotonic_coarse64() implementation
that can be used as we convert internal users of
get_monotonic_coarse away from using timespecs.
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
include/linux/timekeeping.h | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index e40a8d60fb21..8cab4b754be7 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -25,7 +25,7 @@ struct timespec __current_kernel_time(void);
/*
* timespec based interfaces
*/
-struct timespec get_monotonic_coarse(void);
+struct timespec64 get_monotonic_coarse64(void);
extern void getrawmonotonic64(struct timespec64 *ts);
extern void ktime_get_ts64(struct timespec64 *ts);
@@ -66,6 +66,10 @@ static inline void getrawmonotonic(struct timespec *ts)
getrawmonotonic64(ts);
}
+static inline struct timespec get_monotonic_coarse(void)
+{
+ return get_monotonic_coarse64();
+}
#else
/**
* Deprecated. Use do_settimeofday64().
@@ -118,6 +122,11 @@ static inline void getrawmonotonic(struct timespec *ts)
getrawmonotonic64(&ts64);
*ts = timespec64_to_timespec(ts64);
}
+
+static inline struct timespec get_monotonic_coarse(void)
+{
+ return timespec64_to_timespec(get_monotonic_coarse64());
+}
#endif
extern void getboottime(struct timespec *ts);
--
cgit v1.2.1
From c2c11ae4b6bc03b41720337028b940cbec9e316f Mon Sep 17 00:00:00 2001
From: "pang.xunlei" <pang.xunlei@linaro.org>
Date: Tue, 18 Nov 2014 19:15:19 +0800
Subject: rtc/lib: Provide y2038 safe rtc_tm_to_time()/rtc_time_to_tm()
replacement
As part of addressing "y2038 problem" for in-kernel uses, this patch
adds safe rtc_tm_to_time64()/rtc_time64_to_tm() respectively using
time64_t.
After this patch, rtc_tm_to_time() is deprecated and all its call
sites will be fixed using corresponding safe versions, it can be
removed when having no users. Also change rtc_tm_to_time64() to
return time64_t directly instead of just as a parameter like
rtc_tm_to_time() does.
After this patch, rtc_time_to_tm() is deprecated and all its call
sites will be fixed using corresponding safe versions, it can be
removed when having no users.
In addition, change rtc_tm_to_ktime() and rtc_ktime_to_tm() to use
the safe version in passing.
Signed-off-by: pang.xunlei <pang.xunlei@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
include/linux/rtc.h | 21 +++++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index c2c28975293c..6d6be09a2fe5 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -19,11 +19,28 @@
extern int rtc_month_days(unsigned int month, unsigned int year);
extern int rtc_year_days(unsigned int day, unsigned int month, unsigned int year);
extern int rtc_valid_tm(struct rtc_time *tm);
-extern int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time);
-extern void rtc_time_to_tm(unsigned long time, struct rtc_time *tm);
+extern time64_t rtc_tm_to_time64(struct rtc_time *tm);
+extern void rtc_time64_to_tm(time64_t time, struct rtc_time *tm);
ktime_t rtc_tm_to_ktime(struct rtc_time tm);
struct rtc_time rtc_ktime_to_tm(ktime_t kt);
+/**
+ * Deprecated. Use rtc_time64_to_tm().
+ */
+static inline void rtc_time_to_tm(unsigned long time, struct rtc_time *tm)
+{
+ rtc_time64_to_tm(time, tm);
+}
+
+/**
+ * Deprecated. Use rtc_tm_to_time64().
+ */
+static inline int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time)
+{
+ *time = rtc_tm_to_time64(tm);
+
+ return 0;
+}
#include <linux/device.h>
#include <linux/seq_file.h>
--
cgit v1.2.1
From 21b6c0512e8aca75ce76365e1aef9fb16e007100 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Thu, 20 Nov 2014 21:19:15 -0800
Subject: time: Remove timekeeping_inject_sleeptime()
Since all users have been converted to using the 64bit
timekeeping_inject_sleeptime64(), remove the old y2038
problematic timekeeping_inject_sleeptime().
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
include/linux/timekeeping.h | 11 -----------
1 file changed, 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 8cab4b754be7..961fea373f83 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -225,17 +225,6 @@ static inline void timekeeping_clocktai(struct timespec *ts)
*/
extern void timekeeping_inject_sleeptime64(struct timespec64 *delta);
-/**
- * Deprecated. Use timekeeping_inject_sleeptime64().
- */
-static inline void timekeeping_inject_sleeptime(struct timespec *delta)
-{
- struct timespec64 delta64;
-
- delta64 = timespec_to_timespec64(*delta);
- timekeeping_inject_sleeptime64(&delta64);
-}
-
/*
* PPS accessor
*/
--
cgit v1.2.1
From 0655f6a8635b1b66f2434d5556b1044c14b1ccaf Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:07 +0100
Subject: tipc: add bearer disable/enable to new netlink api
A new netlink API for tipc that can disable or enable a tipc bearer.
The new API is separated from the old API because of a bug in the
user space client (tipc-config). The problem is that older versions
of tipc-config has a very low receive limit and adding commands to
the legacy genl_opts struct causes the ctrl_getfamily() response
message to grow, subsequently breaking the tool.
The new API utilizes netlink policies for input validation. Where the
top-level netlink attributes are tipc-logical entities, like bearer.
The top level entities then contain nested attributes. In this case
a name, nested link properties and a domain.
Netlink commands implemented in this patch:
TIPC_NL_BEARER_ENABLE
TIPC_NL_BEARER_DISABLE
Netlink logical layout of bearer enable message:
-> bearer
-> name
[ -> domain ]
[
-> properties
-> priority
]
Netlink logical layout of bearer disable message:
-> bearer
-> name
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 83 +++++++++++++++++++++++++++++++++++++++
1 file changed, 83 insertions(+)
create mode 100644 include/uapi/linux/tipc_netlink.h
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
new file mode 100644
index 000000000000..b9b710faa229
--- /dev/null
+++ b/include/uapi/linux/tipc_netlink.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2014, Ericsson AB
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _LINUX_TIPC_NETLINK_H_
+#define _LINUX_TIPC_NETLINK_H_
+
+#define TIPC_GENL_V2_NAME "TIPCv2"
+#define TIPC_GENL_V2_VERSION 0x1
+
+/* Netlink commands */
+enum {
+ TIPC_NL_UNSPEC,
+ TIPC_NL_LEGACY,
+ TIPC_NL_BEARER_DISABLE,
+ TIPC_NL_BEARER_ENABLE,
+
+ __TIPC_NL_CMD_MAX,
+ TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
+};
+
+/* Top level netlink attributes */
+enum {
+ TIPC_NLA_UNSPEC,
+ TIPC_NLA_BEARER, /* nest */
+
+ __TIPC_NLA_MAX,
+ TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
+};
+
+/* Bearer info */
+enum {
+ TIPC_NLA_BEARER_UNSPEC,
+ TIPC_NLA_BEARER_NAME, /* string */
+ TIPC_NLA_BEARER_PROP, /* nest */
+ TIPC_NLA_BEARER_DOMAIN, /* u32 */
+
+ __TIPC_NLA_BEARER_MAX,
+ TIPC_NLA_BEARER_MAX = __TIPC_NLA_BEARER_MAX - 1
+};
+
+/* Nest, link propreties. Valid for link, media and bearer */
+enum {
+ TIPC_NLA_PROP_UNSPEC,
+
+ TIPC_NLA_PROP_PRIO, /* u32 */
+ TIPC_NLA_PROP_TOL, /* u32 */
+ TIPC_NLA_PROP_WIN, /* u32 */
+
+ __TIPC_NLA_PROP_MAX,
+ TIPC_NLA_PROP_MAX = __TIPC_NLA_PROP_MAX - 1
+};
+
+#endif
--
cgit v1.2.1
From 35b9dd7607f049466a66427e58818b29aeae9ea7 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:08 +0100
Subject: tipc: add bearer get/dump to new netlink api
Add TIPC_NL_BEARER_GET command to the new tipc netlink API.
This command supports dumping all data about all bearers or getting
all information about a specific bearer.
The information about a bearer includes name, link priorities and
domain.
Netlink logical layout of bearer get message:
-> bearer
-> name
Netlink logical layout of returned bearer information:
-> bearer
-> name
-> link properties
-> priority
-> tolerance
-> window
-> domain
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index b9b710faa229..249ec7e9952c 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -43,6 +43,7 @@ enum {
TIPC_NL_LEGACY,
TIPC_NL_BEARER_DISABLE,
TIPC_NL_BEARER_ENABLE,
+ TIPC_NL_BEARER_GET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
--
cgit v1.2.1
From 315c00bc9f2bd17f7ad7ed8119ca49b1125af507 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:09 +0100
Subject: tipc: add bearer set to new netlink api
Add TIPC_NL_BEARER_SET command to the new tipc netlink API.
This command can set one or more link properties for a particular
bearer.
Netlink logical layout of bearer set message:
-> bearer
-> name
-> link properties
[ -> tolerance ]
[ -> priority ]
[ -> window ]
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 249ec7e9952c..f446fba6a0c7 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -44,6 +44,7 @@ enum {
TIPC_NL_BEARER_DISABLE,
TIPC_NL_BEARER_ENABLE,
TIPC_NL_BEARER_GET,
+ TIPC_NL_BEARER_SET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
--
cgit v1.2.1
From 34b78a127c4fd57cf3d5c64031693d10a8e0fae1 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:10 +0100
Subject: tipc: add sock dump to new netlink api
Add TIPC_NL_SOCK_GET command to the new tipc netlink API.
This command supports dumping of all available sockets with their
associated connection or publication(s). It could be extended to reply
with a single socket if the NLM_F_DUMP isn't set.
The information about a socket includes reference, address, connection
information / publication information.
Netlink logical layout of response message:
-> socket
-> reference
-> address
[
-> connection
-> node
-> socket
[
-> connected flag
-> type
-> instance
]
]
[
-> publication flag
]
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index f446fba6a0c7..8c87e2490bc7 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -45,6 +45,7 @@ enum {
TIPC_NL_BEARER_ENABLE,
TIPC_NL_BEARER_GET,
TIPC_NL_BEARER_SET,
+ TIPC_NL_SOCK_GET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@@ -54,6 +55,7 @@ enum {
enum {
TIPC_NLA_UNSPEC,
TIPC_NLA_BEARER, /* nest */
+ TIPC_NLA_SOCK, /* nest */
__TIPC_NLA_MAX,
TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
@@ -70,6 +72,32 @@ enum {
TIPC_NLA_BEARER_MAX = __TIPC_NLA_BEARER_MAX - 1
};
+/* Socket info */
+enum {
+ TIPC_NLA_SOCK_UNSPEC,
+ TIPC_NLA_SOCK_ADDR, /* u32 */
+ TIPC_NLA_SOCK_REF, /* u32 */
+ TIPC_NLA_SOCK_CON, /* nest */
+ TIPC_NLA_SOCK_HAS_PUBL, /* flag */
+
+ __TIPC_NLA_SOCK_MAX,
+ TIPC_NLA_SOCK_MAX = __TIPC_NLA_SOCK_MAX - 1
+};
+
+/* Nest, connection info */
+enum {
+ TIPC_NLA_CON_UNSPEC,
+
+ TIPC_NLA_CON_FLAG, /* flag */
+ TIPC_NLA_CON_NODE, /* u32 */
+ TIPC_NLA_CON_SOCK, /* u32 */
+ TIPC_NLA_CON_TYPE, /* u32 */
+ TIPC_NLA_CON_INST, /* u32 */
+
+ __TIPC_NLA_CON_MAX,
+ TIPC_NLA_CON_MAX = __TIPC_NLA_CON_MAX - 1
+};
+
/* Nest, link propreties. Valid for link, media and bearer */
enum {
TIPC_NLA_PROP_UNSPEC,
--
cgit v1.2.1
From 1a1a143daf84db95dd7212086042004a3abb7bc2 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:11 +0100
Subject: tipc: add publication dump to new netlink api
Add TIPC_NL_PUBL_GET command to the new tipc netlink API.
This command supports dumping of all publications for a specific
socket.
Netlink logical layout of request message:
-> socket
-> reference
Netlink logical layout of response message:
-> publication
-> type
-> lower
-> upper
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 8c87e2490bc7..7e51ff61dccd 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -46,6 +46,7 @@ enum {
TIPC_NL_BEARER_GET,
TIPC_NL_BEARER_SET,
TIPC_NL_SOCK_GET,
+ TIPC_NL_PUBL_GET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@@ -56,6 +57,7 @@ enum {
TIPC_NLA_UNSPEC,
TIPC_NLA_BEARER, /* nest */
TIPC_NLA_SOCK, /* nest */
+ TIPC_NLA_PUBL, /* nest */
__TIPC_NLA_MAX,
TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
@@ -84,6 +86,22 @@ enum {
TIPC_NLA_SOCK_MAX = __TIPC_NLA_SOCK_MAX - 1
};
+/* Publication info */
+enum {
+ TIPC_NLA_PUBL_UNSPEC,
+
+ TIPC_NLA_PUBL_TYPE, /* u32 */
+ TIPC_NLA_PUBL_LOWER, /* u32 */
+ TIPC_NLA_PUBL_UPPER, /* u32 */
+ TIPC_NLA_PUBL_SCOPE, /* u32 */
+ TIPC_NLA_PUBL_NODE, /* u32 */
+ TIPC_NLA_PUBL_REF, /* u32 */
+ TIPC_NLA_PUBL_KEY, /* u32 */
+
+ __TIPC_NLA_PUBL_MAX,
+ TIPC_NLA_PUBL_MAX = __TIPC_NLA_PUBL_MAX - 1
+};
+
/* Nest, connection info */
enum {
TIPC_NLA_CON_UNSPEC,
--
cgit v1.2.1
From 7be57fc6918470ecacd16b89c0d4f73d8fc265c4 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:12 +0100
Subject: tipc: add link get/dump to new netlink api
Add TIPC_NL_LINK_GET command to the new tipc netlink API.
This command supports dumping all information about all links
(including the broadcast link) or getting all information about a
specific link (not the broadcast link).
The information about a link includes name, transmission info,
properties and link statistics.
As the tipc broadcast link is special we unfortunately have to treat
it specially. It is a deliberate decision not to abstract the
broadcast link on this (API) level.
Netlink logical layout of link response message:
-> port
-> name
-> MTU
-> RX
-> TX
-> up flag
-> active flag
-> properties
-> priority
-> tolerance
-> window
-> statistics
-> rx_info
-> rx_fragments
-> rx_fragmented
-> rx_bundles
-> rx_bundled
-> tx_info
-> tx_fragments
-> tx_fragmented
-> tx_bundles
-> tx_bundled
-> msg_prof_tot
-> msg_len_cnt
-> msg_len_tot
-> msg_len_p0
-> msg_len_p1
-> msg_len_p2
-> msg_len_p3
-> msg_len_p4
-> msg_len_p5
-> msg_len_p6
-> rx_states
-> rx_probes
-> rx_nacks
-> rx_deferred
-> tx_states
-> tx_probes
-> tx_nacks
-> tx_acks
-> retransmitted
-> duplicates
-> link_congs
-> max_queue
-> avg_queue
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 62 +++++++++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 7e51ff61dccd..1034fb43d32e 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -47,6 +47,7 @@ enum {
TIPC_NL_BEARER_SET,
TIPC_NL_SOCK_GET,
TIPC_NL_PUBL_GET,
+ TIPC_NL_LINK_GET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@@ -58,6 +59,7 @@ enum {
TIPC_NLA_BEARER, /* nest */
TIPC_NLA_SOCK, /* nest */
TIPC_NLA_PUBL, /* nest */
+ TIPC_NLA_LINK, /* nest */
__TIPC_NLA_MAX,
TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
@@ -86,6 +88,24 @@ enum {
TIPC_NLA_SOCK_MAX = __TIPC_NLA_SOCK_MAX - 1
};
+/* Link info */
+enum {
+ TIPC_NLA_LINK_UNSPEC,
+ TIPC_NLA_LINK_NAME, /* string */
+ TIPC_NLA_LINK_DEST, /* u32 */
+ TIPC_NLA_LINK_MTU, /* u32 */
+ TIPC_NLA_LINK_BROADCAST, /* flag */
+ TIPC_NLA_LINK_UP, /* flag */
+ TIPC_NLA_LINK_ACTIVE, /* flag */
+ TIPC_NLA_LINK_PROP, /* nest */
+ TIPC_NLA_LINK_STATS, /* nest */
+ TIPC_NLA_LINK_RX, /* u32 */
+ TIPC_NLA_LINK_TX, /* u32 */
+
+ __TIPC_NLA_LINK_MAX,
+ TIPC_NLA_LINK_MAX = __TIPC_NLA_LINK_MAX - 1
+};
+
/* Publication info */
enum {
TIPC_NLA_PUBL_UNSPEC,
@@ -128,4 +148,46 @@ enum {
TIPC_NLA_PROP_MAX = __TIPC_NLA_PROP_MAX - 1
};
+/* Nest, statistics info */
+enum {
+ TIPC_NLA_STATS_UNSPEC,
+
+ TIPC_NLA_STATS_RX_INFO, /* u32 */
+ TIPC_NLA_STATS_RX_FRAGMENTS, /* u32 */
+ TIPC_NLA_STATS_RX_FRAGMENTED, /* u32 */
+ TIPC_NLA_STATS_RX_BUNDLES, /* u32 */
+ TIPC_NLA_STATS_RX_BUNDLED, /* u32 */
+ TIPC_NLA_STATS_TX_INFO, /* u32 */
+ TIPC_NLA_STATS_TX_FRAGMENTS, /* u32 */
+ TIPC_NLA_STATS_TX_FRAGMENTED, /* u32 */
+ TIPC_NLA_STATS_TX_BUNDLES, /* u32 */
+ TIPC_NLA_STATS_TX_BUNDLED, /* u32 */
+ TIPC_NLA_STATS_MSG_PROF_TOT, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_CNT, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_TOT, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_P0, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_P1, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_P2, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_P3, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_P4, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_P5, /* u32 */
+ TIPC_NLA_STATS_MSG_LEN_P6, /* u32 */
+ TIPC_NLA_STATS_RX_STATES, /* u32 */
+ TIPC_NLA_STATS_RX_PROBES, /* u32 */
+ TIPC_NLA_STATS_RX_NACKS, /* u32 */
+ TIPC_NLA_STATS_RX_DEFERRED, /* u32 */
+ TIPC_NLA_STATS_TX_STATES, /* u32 */
+ TIPC_NLA_STATS_TX_PROBES, /* u32 */
+ TIPC_NLA_STATS_TX_NACKS, /* u32 */
+ TIPC_NLA_STATS_TX_ACKS, /* u32 */
+ TIPC_NLA_STATS_RETRANSMITTED, /* u32 */
+ TIPC_NLA_STATS_DUPLICATES, /* u32 */
+ TIPC_NLA_STATS_LINK_CONGS, /* u32 */
+ TIPC_NLA_STATS_MAX_QUEUE, /* u32 */
+ TIPC_NLA_STATS_AVG_QUEUE, /* u32 */
+
+ __TIPC_NLA_STATS_MAX,
+ TIPC_NLA_STATS_MAX = __TIPC_NLA_STATS_MAX - 1
+};
+
#endif
--
cgit v1.2.1
From f96ce7a20d6972a834202f3cdd6a53fd0ee26a8e Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:13 +0100
Subject: tipc: add link set to new netlink api
Add TIPC_NL_LINK_SET to the new tipc netlink API.
This command can set one or more link properties for a particular
link.
Netlink logical layout of link set message:
-> link
-> name
-> properties
[ -> tolerance ]
[ -> priority ]
[ -> window ]
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 1034fb43d32e..2deb7fd8d85d 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -48,6 +48,7 @@ enum {
TIPC_NL_SOCK_GET,
TIPC_NL_PUBL_GET,
TIPC_NL_LINK_GET,
+ TIPC_NL_LINK_SET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
--
cgit v1.2.1
From ae36342b50a91cff188e417201452dc075a8f444 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:14 +0100
Subject: tipc: add link stat reset to new netlink api
Add TIPC_NL_LINK_RESET_STATS command to the new netlink API.
This command resets the link statistics for a particular link.
Netlink logical layout of link reset message:
-> link
-> name
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 2deb7fd8d85d..574882a301bf 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -49,6 +49,7 @@ enum {
TIPC_NL_PUBL_GET,
TIPC_NL_LINK_GET,
TIPC_NL_LINK_SET,
+ TIPC_NL_LINK_RESET_STATS,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
--
cgit v1.2.1
From 46f15c6794fb744bb7741d26143a85b9012c10d4 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:15 +0100
Subject: tipc: add media get/dump to new netlink api
Add TIPC_NL_MEDIA_GET command to the new tipc netlink API.
This command supports dumping all information about all defined
media as well as getting all information about a specific media.
The information about a media includes name and link properties.
Netlink logical layout of media get response message:
-> media
-> name
-> link properties
-> tolerance
-> priority
-> window
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 574882a301bf..4101b70991cc 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -50,6 +50,7 @@ enum {
TIPC_NL_LINK_GET,
TIPC_NL_LINK_SET,
TIPC_NL_LINK_RESET_STATS,
+ TIPC_NL_MEDIA_GET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@@ -62,6 +63,7 @@ enum {
TIPC_NLA_SOCK, /* nest */
TIPC_NLA_PUBL, /* nest */
TIPC_NLA_LINK, /* nest */
+ TIPC_NLA_MEDIA, /* nest */
__TIPC_NLA_MAX,
TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
@@ -108,6 +110,16 @@ enum {
TIPC_NLA_LINK_MAX = __TIPC_NLA_LINK_MAX - 1
};
+/* Media info */
+enum {
+ TIPC_NLA_MEDIA_UNSPEC,
+ TIPC_NLA_MEDIA_NAME, /* string */
+ TIPC_NLA_MEDIA_PROP, /* nest */
+
+ __TIPC_NLA_MEDIA_MAX,
+ TIPC_NLA_MEDIA_MAX = __TIPC_NLA_MEDIA_MAX - 1
+};
+
/* Publication info */
enum {
TIPC_NLA_PUBL_UNSPEC,
--
cgit v1.2.1
From 1e55417d8fc6f6d93b1cc6995b911d48ded2adfb Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:16 +0100
Subject: tipc: add media set to new netlink api
Add TIPC_NL_MEDIA_SET command to the new tipc netlink API.
This command can set one or more link properties for a particular
media.
Netlink logical layout of bearer set message:
-> media
-> name
-> link properties
[ -> tolerance ]
[ -> priority ]
[ -> window ]
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 4101b70991cc..43beef28d67f 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -51,6 +51,7 @@ enum {
TIPC_NL_LINK_SET,
TIPC_NL_LINK_RESET_STATS,
TIPC_NL_MEDIA_GET,
+ TIPC_NL_MEDIA_SET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
--
cgit v1.2.1
From 3e4b6ab58d614934e7ca99bdf448089695d34ffa Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:17 +0100
Subject: tipc: add node get/dump to new netlink api
Add TIPC_NL_NODE_GET to the new tipc netlink API.
This command can dump the address and node status of all nodes in the
tipc cluster.
Netlink logical layout of returned node/address data:
-> node
-> address
-> up flag
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 43beef28d67f..08a793374e8c 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -52,6 +52,7 @@ enum {
TIPC_NL_LINK_RESET_STATS,
TIPC_NL_MEDIA_GET,
TIPC_NL_MEDIA_SET,
+ TIPC_NL_NODE_GET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@@ -65,6 +66,7 @@ enum {
TIPC_NLA_PUBL, /* nest */
TIPC_NLA_LINK, /* nest */
TIPC_NLA_MEDIA, /* nest */
+ TIPC_NLA_NODE, /* nest */
__TIPC_NLA_MAX,
TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
@@ -121,6 +123,16 @@ enum {
TIPC_NLA_MEDIA_MAX = __TIPC_NLA_MEDIA_MAX - 1
};
+/* Node info */
+enum {
+ TIPC_NLA_NODE_UNSPEC,
+ TIPC_NLA_NODE_ADDR, /* u32 */
+ TIPC_NLA_NODE_UP, /* flag */
+
+ __TIPC_NLA_NODE_MAX,
+ TIPC_NLA_NODE_MAX = __TIPC_NLA_NODE_MAX - 1
+};
+
/* Publication info */
enum {
TIPC_NLA_PUBL_UNSPEC,
--
cgit v1.2.1
From fd3cf2ad519f73c2f7a46460ebedf32ad246520c Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:18 +0100
Subject: tipc: add net dump to new netlink api
Add TIPC_NL_NET_GET command to the new tipc netlink API.
This command dumps the network id of the node.
Netlink logical layout of returned network data:
-> net
-> id
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index 08a793374e8c..dcfd42002da7 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -53,6 +53,7 @@ enum {
TIPC_NL_MEDIA_GET,
TIPC_NL_MEDIA_SET,
TIPC_NL_NODE_GET,
+ TIPC_NL_NET_GET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@@ -67,6 +68,7 @@ enum {
TIPC_NLA_LINK, /* nest */
TIPC_NLA_MEDIA, /* nest */
TIPC_NLA_NODE, /* nest */
+ TIPC_NLA_NET, /* nest */
__TIPC_NLA_MAX,
TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
@@ -133,6 +135,15 @@ enum {
TIPC_NLA_NODE_MAX = __TIPC_NLA_NODE_MAX - 1
};
+/* Net info */
+enum {
+ TIPC_NLA_NET_UNSPEC,
+ TIPC_NLA_NET_ID, /* u32 */
+
+ __TIPC_NLA_NET_MAX,
+ TIPC_NLA_NET_MAX = __TIPC_NLA_NET_MAX - 1
+};
+
/* Publication info */
enum {
TIPC_NLA_PUBL_UNSPEC,
--
cgit v1.2.1
From 27c21416727af73df45051acb05331c0f10e50f6 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:19 +0100
Subject: tipc: add net set to new netlink api
Add TIPC_NL_NET_SET command to the new tipc netlink API.
This command can set the network id and network (tipc) address.
Netlink logical layout of network set message:
-> net
[ -> id ]
[ -> address ]
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index dcfd42002da7..fb980e27f425 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -54,6 +54,7 @@ enum {
TIPC_NL_MEDIA_SET,
TIPC_NL_NODE_GET,
TIPC_NL_NET_GET,
+ TIPC_NL_NET_SET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@@ -139,6 +140,7 @@ enum {
enum {
TIPC_NLA_NET_UNSPEC,
TIPC_NLA_NET_ID, /* u32 */
+ TIPC_NLA_NET_ADDR, /* u32 */
__TIPC_NLA_NET_MAX,
TIPC_NLA_NET_MAX = __TIPC_NLA_NET_MAX - 1
--
cgit v1.2.1
From 1593123a6a4914ccac4699d7f93cdf8057a7d822 Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Thu, 20 Nov 2014 10:29:20 +0100
Subject: tipc: add name table dump to new netlink api
Add TIPC_NL_NAME_TABLE_GET command to the new tipc netlink API.
This command supports dumping the name table of all nodes.
Netlink logical layout of name table response message:
-> name table
-> publication
-> type
-> lower
-> upper
-> scope
-> node
-> ref
-> key
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tipc_netlink.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index fb980e27f425..8d723824ad69 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -55,6 +55,7 @@ enum {
TIPC_NL_NODE_GET,
TIPC_NL_NET_GET,
TIPC_NL_NET_SET,
+ TIPC_NL_NAME_TABLE_GET,
__TIPC_NL_CMD_MAX,
TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1
@@ -70,6 +71,7 @@ enum {
TIPC_NLA_MEDIA, /* nest */
TIPC_NLA_NODE, /* nest */
TIPC_NLA_NET, /* nest */
+ TIPC_NLA_NAME_TABLE, /* nest */
__TIPC_NLA_MAX,
TIPC_NLA_MAX = __TIPC_NLA_MAX - 1
@@ -146,6 +148,15 @@ enum {
TIPC_NLA_NET_MAX = __TIPC_NLA_NET_MAX - 1
};
+/* Name table info */
+enum {
+ TIPC_NLA_NAME_TABLE_UNSPEC,
+ TIPC_NLA_NAME_TABLE_PUBL, /* nest */
+
+ __TIPC_NLA_NAME_TABLE_MAX,
+ TIPC_NLA_NAME_TABLE_MAX = __TIPC_NLA_NAME_TABLE_MAX - 1
+};
+
/* Publication info */
enum {
TIPC_NLA_PUBL_UNSPEC,
--
cgit v1.2.1
From dbc98635e0d42f0e62ea92813df1e0e4c90f8375 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 19 Nov 2014 17:28:21 +0200
Subject: phy: remove the old lookup method
The users of the old method are now converted to the new one.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
[ kishon@ti.com : made phy-berlin-usb.c and phy-miphy28lp.c to use the updated
devm_phy_create API.]
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
include/linux/phy/phy.h | 38 ++++----------------------------------
1 file changed, 4 insertions(+), 34 deletions(-)
(limited to 'include')
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 849284e5873f..a0197fa1b116 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -61,7 +61,6 @@ struct phy {
struct device dev;
int id;
const struct phy_ops *ops;
- struct phy_init_data *init_data;
struct mutex mutex;
int init_count;
int power_count;
@@ -84,32 +83,6 @@ struct phy_provider {
struct of_phandle_args *args);
};
-/**
- * struct phy_consumer - represents the phy consumer
- * @dev_name: the device name of the controller that will use this PHY device
- * @port: name given to the consumer port
- */
-struct phy_consumer {
- const char *dev_name;
- const char *port;
-};
-
-/**
- * struct phy_init_data - contains the list of PHY consumers
- * @num_consumers: number of consumers for this PHY device
- * @consumers: list of PHY consumers
- */
-struct phy_init_data {
- unsigned int num_consumers;
- struct phy_consumer *consumers;
-};
-
-#define PHY_CONSUMER(_dev_name, _port) \
-{ \
- .dev_name = _dev_name, \
- .port = _port, \
-}
-
struct phy_lookup {
struct list_head node;
const char *dev_id;
@@ -166,10 +139,9 @@ struct phy *of_phy_get(struct device_node *np, const char *con_id);
struct phy *of_phy_simple_xlate(struct device *dev,
struct of_phandle_args *args);
struct phy *phy_create(struct device *dev, struct device_node *node,
- const struct phy_ops *ops,
- struct phy_init_data *init_data);
+ const struct phy_ops *ops);
struct phy *devm_phy_create(struct device *dev, struct device_node *node,
- const struct phy_ops *ops, struct phy_init_data *init_data);
+ const struct phy_ops *ops);
void phy_destroy(struct phy *phy);
void devm_phy_destroy(struct device *dev, struct phy *phy);
struct phy_provider *__of_phy_provider_register(struct device *dev,
@@ -310,16 +282,14 @@ static inline struct phy *of_phy_simple_xlate(struct device *dev,
static inline struct phy *phy_create(struct device *dev,
struct device_node *node,
- const struct phy_ops *ops,
- struct phy_init_data *init_data)
+ const struct phy_ops *ops)
{
return ERR_PTR(-ENOSYS);
}
static inline struct phy *devm_phy_create(struct device *dev,
struct device_node *node,
- const struct phy_ops *ops,
- struct phy_init_data *init_data)
+ const struct phy_ops *ops)
{
return ERR_PTR(-ENOSYS);
}
--
cgit v1.2.1
From eadac03e898617521f327faf265932b73ecc3e0f Mon Sep 17 00:00:00 2001
From: Pranith Kumar <bobby.prani@gmail.com>
Date: Fri, 21 Nov 2014 10:05:59 -0500
Subject: percpu: Replace smp_read_barrier_depends() with
lockless_dereference()
Recently lockless_dereference() was added which can be used in place of
hard-coding smp_read_barrier_depends(). The following PATCH makes the change.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/linux/percpu-refcount.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index d5c89e0dd0e6..6b0c81872142 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -128,10 +128,8 @@ static inline void percpu_ref_kill(struct percpu_ref *ref)
static inline bool __ref_is_percpu(struct percpu_ref *ref,
unsigned long __percpu **percpu_countp)
{
- unsigned long percpu_ptr = ACCESS_ONCE(ref->percpu_count_ptr);
-
/* paired with smp_store_release() in percpu_ref_reinit() */
- smp_read_barrier_depends();
+ unsigned long percpu_ptr = lockless_dereference(ref->percpu_count_ptr);
if (unlikely(percpu_ptr & __PERCPU_REF_ATOMIC))
return false;
--
cgit v1.2.1
From 9f7789f845cc100dd0d94fa1aa083e3373dc03db Mon Sep 17 00:00:00 2001
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: Sat, 22 Nov 2014 08:37:11 -0800
Subject: asm-generic: Remove asm-generic arch_bprm_mm_init()
This is a follow-on to commit 62e88b1c00de 'mm: Make
arch_unmap()/bprm_mm_init() available to all architectures'
I removed the asm-generic version of arch_unmap() in that patch,
but missed arch_bprm_mm_init(). So this broke the build for
architectures using asm-generic/mmu_context.h who actually have
an MMU.
Fixes: 62e88b1c00de 'mm: Make arch_unmap()/bprm_mm_init() available to all architectures'
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20141122163711.0F037EE6@viggo.jf.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/asm-generic/mmu_context.h | 5 -----
1 file changed, 5 deletions(-)
(limited to 'include')
diff --git a/include/asm-generic/mmu_context.h b/include/asm-generic/mmu_context.h
index 1f2a8f9c9264..a7eec910ba6c 100644
--- a/include/asm-generic/mmu_context.h
+++ b/include/asm-generic/mmu_context.h
@@ -42,9 +42,4 @@ static inline void activate_mm(struct mm_struct *prev_mm,
{
}
-static inline void arch_bprm_mm_init(struct mm_struct *mm,
- struct vm_area_struct *vma)
-{
-}
-
#endif /* __ASM_GENERIC_MMU_CONTEXT_H */
--
cgit v1.2.1
From 49c71d1c3dccff640cc082875bd8d62988d63df9 Mon Sep 17 00:00:00 2001
From: Fugang Duan <b38611@freescale.com>
Date: Wed, 24 Sep 2014 10:11:18 +0800
Subject: ARM: imx6sx: add imx6sx iomux-gpr field define
Add imx6sx iomux-gpr register field define in "imx6q-iomuxc-gpr.h" header
file, which is not fully define all iomux-gpr registers and fields, only
align with freescale internal tree related GPR macro define.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 39 +++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
index ff44374a1a4e..c877cad61a13 100644
--- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
+++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
@@ -395,4 +395,43 @@
#define IMX6SL_GPR1_FEC_CLOCK_MUX1_SEL_MASK (0x3 << 17)
#define IMX6SL_GPR1_FEC_CLOCK_MUX2_SEL_MASK (0x1 << 14)
+/* For imx6sx iomux gpr register field define */
+#define IMX6SX_GPR1_VDEC_SW_RST_MASK (0x1 << 20)
+#define IMX6SX_GPR1_VDEC_SW_RST_RESET (0x1 << 20)
+#define IMX6SX_GPR1_VDEC_SW_RST_RELEASE (0x0 << 20)
+#define IMX6SX_GPR1_VADC_SW_RST_MASK (0x1 << 19)
+#define IMX6SX_GPR1_VADC_SW_RST_RESET (0x1 << 19)
+#define IMX6SX_GPR1_VADC_SW_RST_RELEASE (0x0 << 19)
+#define IMX6SX_GPR1_FEC_CLOCK_MUX_SEL_MASK (0x3 << 13)
+#define IMX6SX_GPR1_FEC_CLOCK_PAD_DIR_MASK (0x3 << 17)
+#define IMX6SX_GPR1_FEC_CLOCK_MUX_SEL_EXT (0x3 << 13)
+
+#define IMX6SX_GPR4_FEC_ENET1_STOP_REQ (0x1 << 3)
+#define IMX6SX_GPR4_FEC_ENET2_STOP_REQ (0x1 << 4)
+
+#define IMX6SX_GPR5_DISP_MUX_LDB_CTRL_MASK (0x1 << 3)
+#define IMX6SX_GPR5_DISP_MUX_LDB_CTRL_LCDIF1 (0x0 << 3)
+#define IMX6SX_GPR5_DISP_MUX_LDB_CTRL_LCDIF2 (0x1 << 3)
+
+#define IMX6SX_GPR5_CSI2_MUX_CTRL_MASK (0x3 << 27)
+#define IMX6SX_GPR5_CSI2_MUX_CTRL_EXT_PIN (0x0 << 27)
+#define IMX6SX_GPR5_CSI2_MUX_CTRL_CVD (0x1 << 27)
+#define IMX6SX_GPR5_CSI2_MUX_CTRL_VDAC_TO_CSI (0x2 << 27)
+#define IMX6SX_GPR5_CSI2_MUX_CTRL_GND (0x3 << 27)
+#define IMX6SX_GPR5_VADC_TO_CSI_CAPTURE_EN_MASK (0x1 << 26)
+#define IMX6SX_GPR5_VADC_TO_CSI_CAPTURE_EN_ENABLE (0x1 << 26)
+#define IMX6SX_GPR5_VADC_TO_CSI_CAPTURE_EN_DISABLE (0x0 << 26)
+#define IMX6SX_GPR5_CSI1_MUX_CTRL_MASK (0x3 << 4)
+#define IMX6SX_GPR5_CSI1_MUX_CTRL_EXT_PIN (0x0 << 4)
+#define IMX6SX_GPR5_CSI1_MUX_CTRL_CVD (0x1 << 4)
+#define IMX6SX_GPR5_CSI1_MUX_CTRL_VDAC_TO_CSI (0x2 << 4)
+#define IMX6SX_GPR5_CSI1_MUX_CTRL_GND (0x3 << 4)
+
+#define IMX6SX_GPR5_DISP_MUX_DCIC2_LCDIF2 (0x0 << 2)
+#define IMX6SX_GPR5_DISP_MUX_DCIC2_LVDS (0x1 << 2)
+#define IMX6SX_GPR5_DISP_MUX_DCIC2_MASK (0x1 << 2)
+#define IMX6SX_GPR5_DISP_MUX_DCIC1_LCDIF1 (0x0 << 1)
+#define IMX6SX_GPR5_DISP_MUX_DCIC1_LVDS (0x1 << 1)
+#define IMX6SX_GPR5_DISP_MUX_DCIC1_MASK (0x1 << 1)
+
#endif /* __LINUX_IMX6Q_IOMUXC_GPR_H */
--
cgit v1.2.1
From 6f0628aa9f0fb7c877e52d4d8c6edb11bcd91736 Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 26 Sep 2014 15:41:00 +0200
Subject: ARM: imx5: add step clock, used when reprogramming PLL1
This is the bypass clock used to feed the ARM partition
while we reprogram PLL1 to another rate.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx5-clock.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx5-clock.h b/include/dt-bindings/clock/imx5-clock.h
index 5f2667ecd98e..1a36ff4ace1e 100644
--- a/include/dt-bindings/clock/imx5-clock.h
+++ b/include/dt-bindings/clock/imx5-clock.h
@@ -198,6 +198,8 @@
#define IMX5_CLK_OCRAM 186
#define IMX5_CLK_SAHARA_IPG_GATE 187
#define IMX5_CLK_SATA_REF 188
-#define IMX5_CLK_END 189
+#define IMX5_CLK_STEP_SEL 189
+#define IMX5_CLK_CPU_PODF_SEL 190
+#define IMX5_CLK_END 191
#endif /* __DT_BINDINGS_CLOCK_IMX5_H */
--
cgit v1.2.1
From 82a40b54820601aad0facf72050c62ae7fc7d4df Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 26 Sep 2014 15:41:02 +0200
Subject: ARM: imx53: clk: add ARM clock
The ARM clock is a virtual clock feeding the ARM partition of
the SoC. It controls multiple other clocks to ensure the right
sequencing when cpufreq changes the CPU clock rate.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
include/dt-bindings/clock/imx5-clock.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/imx5-clock.h b/include/dt-bindings/clock/imx5-clock.h
index 1a36ff4ace1e..f4b7478e23c8 100644
--- a/include/dt-bindings/clock/imx5-clock.h
+++ b/include/dt-bindings/clock/imx5-clock.h
@@ -200,6 +200,7 @@
#define IMX5_CLK_SATA_REF 188
#define IMX5_CLK_STEP_SEL 189
#define IMX5_CLK_CPU_PODF_SEL 190
-#define IMX5_CLK_END 191
+#define IMX5_CLK_ARM 191
+#define IMX5_CLK_END 192
#endif /* __DT_BINDINGS_CLOCK_IMX5_H */
--
cgit v1.2.1
From 891d4a48f7da39de2be17a59b47df62dccf0f3d5 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sun, 9 Nov 2014 23:10:33 +0800
Subject: PCI/MSI: Rename __read_msi_msg() to __pci_read_msi_msg()
Rename __read_msi_msg() to __pci_read_msi_msg() and kill unused
read_msi_msg(). It's a preparation to separate generic MSI code from
PCI core.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 6704991b0174..f36c37b46f10 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -16,12 +16,11 @@ struct irq_data;
struct msi_desc;
void mask_msi_irq(struct irq_data *data);
void unmask_msi_irq(struct irq_data *data);
-void __read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
-void read_msi_msg(unsigned int irq, struct msi_msg *msg);
void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg);
void write_msi_msg(unsigned int irq, struct msi_msg *msg);
+
u32 __msix_mask_irq(struct msi_desc *desc, u32 flag);
u32 __msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
@@ -51,6 +50,8 @@ struct msi_desc {
struct msi_msg msg;
};
+void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
+
/*
* The arch hooks to setup up msi irqs. Those functions are
* implemented as weak symbols so that they /can/ be overriden by
--
cgit v1.2.1
From 83a18912b0e8d275001bca6fc9c0fe519d98f280 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sun, 9 Nov 2014 23:10:34 +0800
Subject: PCI/MSI: Rename write_msi_msg() to pci_write_msi_msg()
Rename write_msi_msg() to pci_write_msi_msg() to mark it as PCI
specific.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index f36c37b46f10..301adecbc34d 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -17,9 +17,7 @@ struct msi_desc;
void mask_msi_irq(struct irq_data *data);
void unmask_msi_irq(struct irq_data *data);
void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
-void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg);
-void write_msi_msg(unsigned int irq, struct msi_msg *msg);
u32 __msix_mask_irq(struct msi_desc *desc, u32 flag);
u32 __msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
@@ -51,6 +49,18 @@ struct msi_desc {
};
void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
+void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
+void pci_write_msi_msg(unsigned int irq, struct msi_msg *msg);
+
+/* Conversion helpers. Should be removed after merging */
+static inline void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
+{
+ __pci_write_msi_msg(entry, msg);
+}
+static inline void write_msi_msg(int irq, struct msi_msg *msg)
+{
+ pci_write_msi_msg(irq, msg);
+}
/*
* The arch hooks to setup up msi irqs. Those functions are
--
cgit v1.2.1
From 23ed8d57f3b87520e045ba0e3a2340638b31198a Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sun, 23 Nov 2014 11:55:58 +0100
Subject: PCI/MSI: Rename mask/unmask_msi_irq et al
mask/unmask_msi_irq and __mask_msi/msix_irq are PCI/MSI specific
functions and should be named accordingly. This is a preparatory patch
to support MSI on non PCI devices.
Rename mask/unmask_msi_irq to pci_msi_mask/unmask_irq and document the
functions. Provide conversion helpers.
Rename __mask_msi/msix_irq to __pci_msi/msix_desc_mask so its clear
that they operated on msi_desc. Fixup the only user outside of
pci/msi.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
---
include/linux/msi.h | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 301adecbc34d..1dcad0c1e806 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -14,14 +14,9 @@ extern int pci_msi_ignore_mask;
/* Helper functions */
struct irq_data;
struct msi_desc;
-void mask_msi_irq(struct irq_data *data);
-void unmask_msi_irq(struct irq_data *data);
void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg);
-u32 __msix_mask_irq(struct msi_desc *desc, u32 flag);
-u32 __msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
-
struct msi_desc {
struct {
__u8 is_msix : 1;
@@ -52,6 +47,11 @@ void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void pci_write_msi_msg(unsigned int irq, struct msi_msg *msg);
+u32 __pci_msix_desc_mask_irq(struct msi_desc *desc, u32 flag);
+u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
+void pci_msi_mask_irq(struct irq_data *data);
+void pci_msi_unmask_irq(struct irq_data *data);
+
/* Conversion helpers. Should be removed after merging */
static inline void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
{
@@ -61,6 +61,14 @@ static inline void write_msi_msg(int irq, struct msi_msg *msg)
{
pci_write_msi_msg(irq, msg);
}
+static inline void mask_msi_irq(struct irq_data *data)
+{
+ pci_msi_mask_irq(data);
+}
+static inline void unmask_msi_irq(struct irq_data *data)
+{
+ pci_msi_unmask_irq(data);
+}
/*
* The arch hooks to setup up msi irqs. Those functions are
--
cgit v1.2.1
From d31eb342409b24e3d2e1989c775f3361e93acc08 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sat, 15 Nov 2014 22:24:03 +0800
Subject: PCI/MSI: Introduce helpers to hide struct msi_desc implementation
details
Introduce helpers to hide struct msi_desc implementation details,
so we could easily support non-PCI-compliant MSI devices later by
moving msi_list into struct device.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Alexander Gordeev <agordeev@redhat.com>
Link: http://lkml.kernel.org/r/1416061447-9472-6-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 1dcad0c1e806..e0d08517bd3d 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -43,6 +43,25 @@ struct msi_desc {
struct msi_msg msg;
};
+/* Helpers to hide struct msi_desc implementation details */
+#define msi_desc_to_dev(desc) (&(desc)->dev.dev)
+#define dev_to_msi_list(dev) (&to_pci_dev((dev))->msi_list)
+#define first_msi_entry(dev) \
+ list_first_entry(dev_to_msi_list((dev)), struct msi_desc, list)
+#define for_each_msi_entry(desc, dev) \
+ list_for_each_entry((desc), dev_to_msi_list((dev)), list)
+
+#ifdef CONFIG_PCI_MSI
+#define first_pci_msi_entry(pdev) first_msi_entry(&(pdev)->dev)
+#define for_each_pci_msi_entry(desc, pdev) \
+ for_each_msi_entry((desc), &(pdev)->dev)
+
+static inline struct pci_dev *msi_desc_to_pci_dev(struct msi_desc *desc)
+{
+ return desc->dev;
+}
+#endif /* CONFIG_PCI_MSI */
+
void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void pci_write_msi_msg(unsigned int irq, struct msi_msg *msg);
--
cgit v1.2.1
From f8264e34965aaf43203912ed8f7b543c00c8d70f Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Thu, 6 Nov 2014 22:20:14 +0800
Subject: irqdomain: Introduce new interfaces to support hierarchy irqdomains
We plan to use hierarchy irqdomain to suppport CPU vector assignment,
interrupt remapping controller, IO-APIC controller, MSI interrupt
and hypertransport interrupt etc on x86 platforms. So extend irqdomain
interfaces to support hierarchy irqdomain.
There are already many clients of current irqdomain interfaces.
To minimize the changes, we choose to introduce new version 2 interfaces
to support hierarchy instead of extending existing irqdomain interfaces.
According to Thomas's suggestion, the most important design decision is
to build hierarchy struct irq_data to support hierarchy irqdomain, so
hierarchy irqdomain related data could be saved in struct irq_data.
With support of hierarchy irq_data, we could also support stacked
irq_chips. This is most useful in case of set_affinity().
The new hierarchy irqdomain introduces following interfaces:
1) irq_domain_alloc_irqs()/irq_domain_free_irqs(): allocate/release IRQ
and related resources.
2) __irq_domain_alloc_irqs(): a special version to support legacy IRQs.
3) irq_domain_activate_irq()/irq_domain_deactivate_irq(): program
interrupt controllers to activate/deactivate interrupt.
There are also several help functions to ease irqdomain implemenations:
1) irq_domain_get_irq_data(): get irq_data associated with a specific
irqdomain.
2) irq_domain_set_hwirq_and_chip(): save irqdomain specific data into
irq_data.
3) irq_domain_alloc_irqs_parent()/irq_domain_free_irqs_parent(): invoke
parent irqdomain's alloc/free callbacks.
We also changed irq_startup()/irq_shutdown() to invoke
irq_domain_activate_irq()/irq_domain_deactivate_irq() to program
interrupt controller when start/stop interrupts.
[ tglx: Folded parts of the later patch series in ]
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irq.h | 5 +++
include/linux/irqdomain.h | 98 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 103 insertions(+)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 03f48d936f66..13ba412ce3a0 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -133,6 +133,8 @@ struct irq_domain;
* @chip: low level interrupt hardware access
* @domain: Interrupt translation domain; responsible for mapping
* between hwirq number and linux irq number.
+ * @parent_data: pointer to parent struct irq_data to support hierarchy
+ * irq_domain
* @handler_data: per-IRQ data for the irq_chip methods
* @chip_data: platform-specific per-chip private data for the chip
* methods, to allow shared chip implementations
@@ -151,6 +153,9 @@ struct irq_data {
unsigned int state_use_accessors;
struct irq_chip *chip;
struct irq_domain *domain;
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+ struct irq_data *parent_data;
+#endif
void *handler_data;
void *chip_data;
struct msi_desc *msi_desc;
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index b0f9d16e48f6..f8563dcfd254 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -38,6 +38,8 @@
struct device_node;
struct irq_domain;
struct of_device_id;
+struct irq_chip;
+struct irq_data;
/* Number of irqs reserved for a legacy isa controller */
#define NUM_ISA_INTERRUPTS 16
@@ -64,6 +66,16 @@ struct irq_domain_ops {
int (*xlate)(struct irq_domain *d, struct device_node *node,
const u32 *intspec, unsigned int intsize,
unsigned long *out_hwirq, unsigned int *out_type);
+
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+ /* extended V2 interfaces to support hierarchy irq_domains */
+ int (*alloc)(struct irq_domain *d, unsigned int virq,
+ unsigned int nr_irqs, void *arg);
+ void (*free)(struct irq_domain *d, unsigned int virq,
+ unsigned int nr_irqs);
+ void (*activate)(struct irq_domain *d, struct irq_data *irq_data);
+ void (*deactivate)(struct irq_domain *d, struct irq_data *irq_data);
+#endif
};
extern struct irq_domain_ops irq_generic_chip_ops;
@@ -77,6 +89,7 @@ struct irq_domain_chip_generic;
* @ops: pointer to irq_domain methods
* @host_data: private data pointer for use by owner. Not touched by irq_domain
* core code.
+ * @flags: host per irq_domain flags
*
* Optional elements
* @of_node: Pointer to device tree nodes associated with the irq_domain. Used
@@ -84,6 +97,7 @@ struct irq_domain_chip_generic;
* @gc: Pointer to a list of generic chips. There is a helper function for
* setting up one or more generic chips for interrupt controllers
* drivers using the generic chip library which uses this pointer.
+ * @parent: Pointer to parent irq_domain to support hierarchy irq_domains
*
* Revmap data, used internally by irq_domain
* @revmap_direct_max_irq: The largest hwirq that can be set for controllers that
@@ -97,10 +111,14 @@ struct irq_domain {
const char *name;
const struct irq_domain_ops *ops;
void *host_data;
+ unsigned int flags;
/* Optional data */
struct device_node *of_node;
struct irq_domain_chip_generic *gc;
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+ struct irq_domain *parent;
+#endif
/* reverse map data. The linear map gets appended to the irq_domain */
irq_hw_number_t hwirq_max;
@@ -110,6 +128,19 @@ struct irq_domain {
unsigned int linear_revmap[];
};
+/* Irq domain flags */
+enum {
+ /* Irq domain is hierarchical */
+ IRQ_DOMAIN_FLAG_HIERARCHY = (1 << 0),
+
+ /*
+ * Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved
+ * for implementation specific purposes and ignored by the
+ * core code.
+ */
+ IRQ_DOMAIN_FLAG_NONCORE = (1 << 16),
+};
+
#ifdef CONFIG_IRQ_DOMAIN
struct irq_domain *__irq_domain_add(struct device_node *of_node, int size,
irq_hw_number_t hwirq_max, int direct_max,
@@ -220,8 +251,75 @@ int irq_domain_xlate_onetwocell(struct irq_domain *d, struct device_node *ctrlr,
const u32 *intspec, unsigned int intsize,
irq_hw_number_t *out_hwirq, unsigned int *out_type);
+/* V2 interfaces to support hierarchy IRQ domains. */
+extern struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain,
+ unsigned int virq);
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+extern int __irq_domain_alloc_irqs(struct irq_domain *domain, int irq_base,
+ unsigned int nr_irqs, int node, void *arg,
+ bool realloc);
+extern void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs);
+extern void irq_domain_activate_irq(struct irq_data *irq_data);
+extern void irq_domain_deactivate_irq(struct irq_data *irq_data);
+
+static inline int irq_domain_alloc_irqs(struct irq_domain *domain,
+ unsigned int nr_irqs, int node, void *arg)
+{
+ return __irq_domain_alloc_irqs(domain, -1, nr_irqs, node, arg, false);
+}
+
+extern int irq_domain_set_hwirq_and_chip(struct irq_domain *domain,
+ unsigned int virq,
+ irq_hw_number_t hwirq,
+ struct irq_chip *chip,
+ void *chip_data);
+extern void irq_domain_reset_irq_data(struct irq_data *irq_data);
+extern void irq_domain_free_irqs_common(struct irq_domain *domain,
+ unsigned int virq,
+ unsigned int nr_irqs);
+extern void irq_domain_free_irqs_top(struct irq_domain *domain,
+ unsigned int virq, unsigned int nr_irqs);
+
+static inline int irq_domain_alloc_irqs_parent(struct irq_domain *domain,
+ unsigned int irq_base,
+ unsigned int nr_irqs, void *arg)
+{
+ if (domain->parent && domain->parent->ops->alloc)
+ return domain->parent->ops->alloc(domain->parent, irq_base,
+ nr_irqs, arg);
+ return -ENOSYS;
+}
+
+static inline void irq_domain_free_irqs_parent(struct irq_domain *domain,
+ unsigned int irq_base, unsigned int nr_irqs)
+{
+ if (domain->parent && domain->parent->ops->free)
+ domain->parent->ops->free(domain->parent, irq_base, nr_irqs);
+}
+
+static inline bool irq_domain_is_hierarchy(struct irq_domain *domain)
+{
+ return domain->flags & IRQ_DOMAIN_FLAG_HIERARCHY;
+}
+#else /* CONFIG_IRQ_DOMAIN_HIERARCHY */
+static inline void irq_domain_activate_irq(struct irq_data *data) { }
+static inline void irq_domain_deactivate_irq(struct irq_data *data) { }
+static inline int irq_domain_alloc_irqs(struct irq_domain *domain,
+ unsigned int nr_irqs, int node, void *arg)
+{
+ return -1;
+}
+
+static inline bool irq_domain_is_hierarchy(struct irq_domain *domain)
+{
+ return false;
+}
+#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
+
#else /* CONFIG_IRQ_DOMAIN */
static inline void irq_dispose_mapping(unsigned int virq) { }
+static inline void irq_domain_activate_irq(struct irq_data *data) { }
+static inline void irq_domain_deactivate_irq(struct irq_data *data) { }
#endif /* !CONFIG_IRQ_DOMAIN */
#endif /* _LINUX_IRQDOMAIN_H */
--
cgit v1.2.1
From 85f08c17de26f117be6ca7aa260d2ec02a2248ba Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Thu, 6 Nov 2014 22:20:16 +0800
Subject: genirq: Introduce helper functions to support stacked irq_chip
Now we already support hierarchy irq_data, so introduce several helpers
to support stacked irq_chips.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irq.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 13ba412ce3a0..0adcbbbf2e87 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -443,6 +443,11 @@ extern void handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_nested_irq(unsigned int irq);
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+extern void irq_chip_ack_parent(struct irq_data *data);
+extern int irq_chip_retrigger_hierarchy(struct irq_data *data);
+#endif
+
/* Handling of unhandled and spurious interrupts: */
extern void note_interrupt(unsigned int irq, struct irq_desc *desc,
irqreturn_t action_ret);
--
cgit v1.2.1
From 56e8abab615e0c5858cfb9fa0015a44641762b9d Mon Sep 17 00:00:00 2001
From: Yingjoe Chen <yingjoe.chen@mediatek.com>
Date: Thu, 13 Nov 2014 23:37:05 +0800
Subject: genirq: Add more helper functions to support stacked irq_chip
Add more helper function for stacked irq_chip to just call parent's
function.
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Gran Likely <grant.likely@linaro.org>
Cc: Boris BREZILLON <boris.brezillon@free-electrons.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: <srv_heupstream@mediatek.com>
Cc: <yingjoe.chen@gmail.com>
Cc: <hc.yen@mediatek.com>
Cc: <eddie.huang@mediatek.com>
Cc: <nathan.chung@mediatek.com>
Cc: <yh.chen@mediatek.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Link: http://lkml.kernel.org/r/1415893029-2971-3-git-send-email-yingjoe.chen@mediatek.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irq.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 0adcbbbf2e87..fad4bf6f15f6 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -446,6 +446,12 @@ extern void handle_nested_irq(unsigned int irq);
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
extern void irq_chip_ack_parent(struct irq_data *data);
extern int irq_chip_retrigger_hierarchy(struct irq_data *data);
+extern void irq_chip_mask_parent(struct irq_data *data);
+extern void irq_chip_unmask_parent(struct irq_data *data);
+extern void irq_chip_eoi_parent(struct irq_data *data);
+extern int irq_chip_set_affinity_parent(struct irq_data *data,
+ const struct cpumask *dest,
+ bool force);
#endif
/* Handling of unhandled and spurious interrupts: */
--
cgit v1.2.1
From 515085ef7ee74694bc9b02bc45196452defad59a Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Thu, 6 Nov 2014 22:20:17 +0800
Subject: genirq: Introduce irq_chip.irq_compose_msi_msg() to support stacked
irqchip
Add callback irq_compose_msi_msg to struct irq_chip, which will be used
to support stacked irqchip.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irq.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index fad4bf6f15f6..d58e58935465 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -29,6 +29,7 @@ struct seq_file;
struct module;
struct irq_desc;
struct irq_data;
+struct msi_msg;
typedef void (*irq_flow_handler_t)(unsigned int irq,
struct irq_desc *desc);
typedef void (*irq_preflow_handler_t)(struct irq_data *data);
@@ -320,6 +321,7 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
* any other callback related to this irq
* @irq_release_resources: optional to release resources acquired with
* irq_request_resources
+ * @irq_compose_msi_msg: optional to compose message content for MSI
* @flags: chip specific flags
*/
struct irq_chip {
@@ -356,6 +358,8 @@ struct irq_chip {
int (*irq_request_resources)(struct irq_data *data);
void (*irq_release_resources)(struct irq_data *data);
+ void (*irq_compose_msi_msg)(struct irq_data *data, struct msi_msg *msg);
+
unsigned long flags;
};
@@ -443,6 +447,7 @@ extern void handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_nested_irq(unsigned int irq);
+extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg);
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
extern void irq_chip_ack_parent(struct irq_data *data);
extern int irq_chip_retrigger_hierarchy(struct irq_data *data);
--
cgit v1.2.1
From 2cb625478f8cea0f72b565007a35e1eb7882ac3a Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Thu, 6 Nov 2014 22:20:18 +0800
Subject: genirq: Add IRQ_SET_MASK_OK_DONE to support stacked irqchip
Add IRQ_SET_MASK_OK_DONE in addition to IRQ_SET_MASK_OK and
IRQ_SET_MASK_OK_NOCOPY to support stacked irqchip. IRQ_SET_MASK_OK_DONE
is the same as IRQ_SET_MASK_OK to irq core. To stacked irqchip, it means
that ascendant irqchips have done all the work and no more handling
needed in descendant irqchips.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irq.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index d58e58935465..566b1e541323 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -114,10 +114,14 @@ enum {
*
* IRQ_SET_MASK_OK - OK, core updates irq_data.affinity
* IRQ_SET_MASK_NOCPY - OK, chip did update irq_data.affinity
+ * IRQ_SET_MASK_OK_DONE - Same as IRQ_SET_MASK_OK for core. Special code to
+ * support stacked irqchips, which indicates skipping
+ * all descendent irqchips.
*/
enum {
IRQ_SET_MASK_OK = 0,
IRQ_SET_MASK_OK_NOCOPY,
+ IRQ_SET_MASK_OK_DONE,
};
struct msi_desc;
--
cgit v1.2.1
From 75ffc0075007ca649131a2c42863ce6995d9bf80 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 11 Nov 2014 21:58:34 +0100
Subject: genirq: Split out flow handler typedefs into seperate header file
Required to avoid circular include dependencies.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irq.h | 6 +-----
include/linux/irqhandler.h | 14 ++++++++++++++
2 files changed, 15 insertions(+), 5 deletions(-)
create mode 100644 include/linux/irqhandler.h
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 566b1e541323..677482bd8b92 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -15,6 +15,7 @@
#include <linux/spinlock.h>
#include <linux/cpumask.h>
#include <linux/gfp.h>
+#include <linux/irqhandler.h>
#include <linux/irqreturn.h>
#include <linux/irqnr.h>
#include <linux/errno.h>
@@ -27,12 +28,7 @@
struct seq_file;
struct module;
-struct irq_desc;
-struct irq_data;
struct msi_msg;
-typedef void (*irq_flow_handler_t)(unsigned int irq,
- struct irq_desc *desc);
-typedef void (*irq_preflow_handler_t)(struct irq_data *data);
/*
* IRQ line status.
diff --git a/include/linux/irqhandler.h b/include/linux/irqhandler.h
new file mode 100644
index 000000000000..62d543004197
--- /dev/null
+++ b/include/linux/irqhandler.h
@@ -0,0 +1,14 @@
+#ifndef _LINUX_IRQHANDLER_H
+#define _LINUX_IRQHANDLER_H
+
+/*
+ * Interrupt flow handler typedefs are defined here to avoid circular
+ * include dependencies.
+ */
+
+struct irq_desc;
+struct irq_data;
+typedef void (*irq_flow_handler_t)(unsigned int irq, struct irq_desc *desc);
+typedef void (*irq_preflow_handler_t)(struct irq_data *data);
+
+#endif
--
cgit v1.2.1
From 1b5377087cb4e68d719a875120894fddfbcbf0f9 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sun, 9 Nov 2014 23:10:24 +0800
Subject: genirq: Introduce helper irq_domain_set_info() to reduce duplicated
code
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irqdomain.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index f8563dcfd254..7aca1adb68a1 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -33,6 +33,7 @@
#define _LINUX_IRQDOMAIN_H
#include <linux/types.h>
+#include <linux/irqhandler.h>
#include <linux/radix-tree.h>
struct device_node;
@@ -273,6 +274,10 @@ extern int irq_domain_set_hwirq_and_chip(struct irq_domain *domain,
irq_hw_number_t hwirq,
struct irq_chip *chip,
void *chip_data);
+extern void irq_domain_set_info(struct irq_domain *domain, unsigned int virq,
+ irq_hw_number_t hwirq, struct irq_chip *chip,
+ void *chip_data, irq_flow_handler_t handler,
+ void *handler_data, const char *handler_name);
extern void irq_domain_reset_irq_data(struct irq_data *irq_data);
extern void irq_domain_free_irqs_common(struct irq_domain *domain,
unsigned int virq,
--
cgit v1.2.1
From 36d727310cb9f85efb5ac089ffb1797e7c3538e1 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sat, 15 Nov 2014 22:24:01 +0800
Subject: irqdomain: Implement a method to automatically call parent domains
alloc/free
Add a flags to irq_domain.flags to control whether the irqdomain core
should automatically call parent irqdomain's alloc/free callbacks. It
help to reduce hierarchy irqdomains users' code size.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Link: http://lkml.kernel.org/r/1416061447-9472-4-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irqdomain.h | 24 +++++++++---------------
1 file changed, 9 insertions(+), 15 deletions(-)
(limited to 'include')
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 7aca1adb68a1..dd2709bdad56 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -134,6 +134,9 @@ enum {
/* Irq domain is hierarchical */
IRQ_DOMAIN_FLAG_HIERARCHY = (1 << 0),
+ /* Core calls alloc/free recursive through the domain hierarchy. */
+ IRQ_DOMAIN_FLAG_AUTO_RECURSIVE = (1 << 1),
+
/*
* Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved
* for implementation specific purposes and ignored by the
@@ -285,22 +288,13 @@ extern void irq_domain_free_irqs_common(struct irq_domain *domain,
extern void irq_domain_free_irqs_top(struct irq_domain *domain,
unsigned int virq, unsigned int nr_irqs);
-static inline int irq_domain_alloc_irqs_parent(struct irq_domain *domain,
- unsigned int irq_base,
- unsigned int nr_irqs, void *arg)
-{
- if (domain->parent && domain->parent->ops->alloc)
- return domain->parent->ops->alloc(domain->parent, irq_base,
- nr_irqs, arg);
- return -ENOSYS;
-}
+extern int irq_domain_alloc_irqs_parent(struct irq_domain *domain,
+ unsigned int irq_base,
+ unsigned int nr_irqs, void *arg);
-static inline void irq_domain_free_irqs_parent(struct irq_domain *domain,
- unsigned int irq_base, unsigned int nr_irqs)
-{
- if (domain->parent && domain->parent->ops->free)
- domain->parent->ops->free(domain->parent, irq_base, nr_irqs);
-}
+extern void irq_domain_free_irqs_parent(struct irq_domain *domain,
+ unsigned int irq_base,
+ unsigned int nr_irqs);
static inline bool irq_domain_is_hierarchy(struct irq_domain *domain)
{
--
cgit v1.2.1
From afb7da83b9f476728623130703acb553d7c7c4d9 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sat, 15 Nov 2014 22:24:02 +0800
Subject: irqdomain: Introduce helper function irq_domain_add_hierarchy()
Introduce helper function irq_domain_add_hierarchy(), which creates
a linear irqdomain if parameter 'size' is not zero, otherwise creates
a tree irqdomain.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Link: http://lkml.kernel.org/r/1416061447-9472-5-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irqdomain.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index dd2709bdad56..676d7306a360 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -259,6 +259,10 @@ int irq_domain_xlate_onetwocell(struct irq_domain *d, struct device_node *ctrlr,
extern struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain,
unsigned int virq);
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+extern struct irq_domain *irq_domain_add_hierarchy(struct irq_domain *parent,
+ unsigned int flags, unsigned int size,
+ struct device_node *node,
+ const struct irq_domain_ops *ops, void *host_data);
extern int __irq_domain_alloc_irqs(struct irq_domain *domain, int irq_base,
unsigned int nr_irqs, int node, void *arg,
bool realloc);
--
cgit v1.2.1
From 9dde55b72dc80bfae4280ddce5dbd69ba8240813 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sun, 9 Nov 2014 23:10:28 +0800
Subject: genirq: Introduce callback irq_chip.irq_write_msi_msg
Introduce callback irq_chip.irq_write_msi_msg, so we can share common
code among MSI alike interrupt controllers, such as HPET and DMAR.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/irq.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 677482bd8b92..8badf34baf0f 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -322,6 +322,7 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
* @irq_release_resources: optional to release resources acquired with
* irq_request_resources
* @irq_compose_msi_msg: optional to compose message content for MSI
+ * @irq_write_msi_msg: optional to write message content for MSI
* @flags: chip specific flags
*/
struct irq_chip {
@@ -359,6 +360,7 @@ struct irq_chip {
void (*irq_release_resources)(struct irq_data *data);
void (*irq_compose_msi_msg)(struct irq_data *data, struct msi_msg *msg);
+ void (*irq_write_msi_msg)(struct irq_data *data, struct msi_msg *msg);
unsigned long flags;
};
@@ -459,6 +461,12 @@ extern int irq_chip_set_affinity_parent(struct irq_data *data,
bool force);
#endif
+static inline void irq_chip_write_msi_msg(struct irq_data *data,
+ struct msi_msg *msg)
+{
+ data->chip->irq_write_msi_msg(data, msg);
+}
+
/* Handling of unhandled and spurious interrupts: */
extern void note_interrupt(unsigned int irq, struct irq_desc *desc,
irqreturn_t action_ret);
--
cgit v1.2.1
From f3cf8bb0d6c3c11ddedf01f02f856f2ae8c33aa4 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Wed, 12 Nov 2014 11:39:03 +0100
Subject: genirq: Add generic msi irq domain support
Implement the basic functions for MSI interrupt support with
hierarchical interrupt domains.
[ tglx: Extracted and combined from several patches ]
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 45 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index e0d08517bd3d..b5ca2456769c 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -114,4 +114,49 @@ struct msi_controller {
void (*teardown_irq)(struct msi_controller *chip, unsigned int irq);
};
+#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
+struct irq_domain;
+struct irq_chip;
+struct device_node;
+struct msi_domain_info;
+
+/**
+ * struct msi_domain_ops - MSI interrupt domain callbacks
+ * @get_hwirq: Retrieve the resulting hw irq number
+ * @msi_init: Domain specific init function for MSI interrupts
+ * @msi_free: Domain specific function to free a MSI interrupts
+ */
+struct msi_domain_ops {
+ irq_hw_number_t (*get_hwirq)(struct msi_domain_info *info, void *arg);
+ int (*msi_init)(struct irq_domain *domain,
+ struct msi_domain_info *info,
+ unsigned int virq, irq_hw_number_t hwirq,
+ void *arg);
+ void (*msi_free)(struct irq_domain *domain,
+ struct msi_domain_info *info,
+ unsigned int virq);
+};
+
+/**
+ * struct msi_domain_info - MSI interrupt domain data
+ * @ops: The callback data structure
+ * @chip: The associated interrupt chip
+ * @data: Domain specific data
+ */
+struct msi_domain_info {
+ struct msi_domain_ops *ops;
+ struct irq_chip *chip;
+ void *data;
+};
+
+int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
+ bool force);
+
+struct irq_domain *msi_create_irq_domain(struct device_node *of_node,
+ struct msi_domain_info *info,
+ struct irq_domain *parent);
+struct msi_domain_info *msi_get_domain_info(struct irq_domain *domain);
+
+#endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */
+
#endif /* LINUX_MSI_H */
--
cgit v1.2.1
From 926ff9ad76e097011030feaee904395e06eea17a Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 17 Nov 2014 18:09:34 +0100
Subject: asm-generic: Add msi.h
To support MSI irq domains we want a generic data structure for
allocation, but we need the option to provide an architecture specific
version of it. So instead of playing #ifdef games in linux/msi.h we
add a generic header file and let architectures decide whether to
include it or to provide their own implementation and provide the
required typedef.
I know that typedefs are not really nice, but in this case there are no
forward declarations required and it's the simplest solution.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Alexander Gordeev <agordeev@redhat.com>
---
include/asm-generic/msi.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 include/asm-generic/msi.h
(limited to 'include')
diff --git a/include/asm-generic/msi.h b/include/asm-generic/msi.h
new file mode 100644
index 000000000000..61c58d8878ce
--- /dev/null
+++ b/include/asm-generic/msi.h
@@ -0,0 +1,32 @@
+#ifndef __ASM_GENERIC_MSI_H
+#define __ASM_GENERIC_MSI_H
+
+#include <linux/types.h>
+
+#ifndef NUM_MSI_ALLOC_SCRATCHPAD_REGS
+# define NUM_MSI_ALLOC_SCRATCHPAD_REGS 2
+#endif
+
+struct msi_desc;
+
+/**
+ * struct msi_alloc_info - Default structure for MSI interrupt allocation.
+ * @desc: Pointer to msi descriptor
+ * @hwirq: Associated hw interrupt number in the domain
+ * @scratchpad: Storage for implementation specific scratch data
+ *
+ * Architectures can provide their own implementation by not including
+ * asm-generic/msi.h into their arch specific header file.
+ */
+typedef struct msi_alloc_info {
+ struct msi_desc *desc;
+ irq_hw_number_t hwirq;
+ union {
+ unsigned long ul;
+ void *ptr;
+ } scratchpad[NUM_MSI_ALLOC_SCRATCHPAD_REGS];
+} msi_alloc_info_t;
+
+#define GENERIC_MSI_DOMAIN_OPS 1
+
+#endif
--
cgit v1.2.1
From d9109698be6e7439e6082aa00d79d4556114739b Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sat, 15 Nov 2014 22:24:04 +0800
Subject: genirq: Introduce msi_domain_alloc/free_irqs()
Introduce msi_domain_{alloc|free}_irqs() to alloc/free interrupts
from generic MSI irqdomain.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Alexander Gordeev <agordeev@redhat.com>
Link: http://lkml.kernel.org/r/1416061447-9472-7-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index b5ca2456769c..7a93a988dce8 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -115,6 +115,9 @@ struct msi_controller {
};
#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
+
+#include <asm/msi.h>
+
struct irq_domain;
struct irq_chip;
struct device_node;
@@ -125,6 +128,18 @@ struct msi_domain_info;
* @get_hwirq: Retrieve the resulting hw irq number
* @msi_init: Domain specific init function for MSI interrupts
* @msi_free: Domain specific function to free a MSI interrupts
+ * @msi_check: Callback for verification of the domain/info/dev data
+ * @msi_prepare: Prepare the allocation of the interrupts in the domain
+ * @msi_finish: Optional callbacl to finalize the allocation
+ * @set_desc: Set the msi descriptor for an interrupt
+ * @handle_error: Optional error handler if the allocation fails
+ *
+ * @get_hwirq, @msi_init and @msi_free are callbacks used by
+ * msi_create_irq_domain() and related interfaces
+ *
+ * @msi_check, @msi_prepare, @msi_finish, @set_desc and @handle_error
+ * are callbacks used by msi_irq_domain_alloc_irqs() and related
+ * interfaces which are based on msi_desc.
*/
struct msi_domain_ops {
irq_hw_number_t (*get_hwirq)(struct msi_domain_info *info, void *arg);
@@ -135,6 +150,17 @@ struct msi_domain_ops {
void (*msi_free)(struct irq_domain *domain,
struct msi_domain_info *info,
unsigned int virq);
+ int (*msi_check)(struct irq_domain *domain,
+ struct msi_domain_info *info,
+ struct device *dev);
+ int (*msi_prepare)(struct irq_domain *domain,
+ struct device *dev, int nvec,
+ msi_alloc_info_t *arg);
+ void (*msi_finish)(msi_alloc_info_t *arg, int retval);
+ void (*set_desc)(msi_alloc_info_t *arg,
+ struct msi_desc *desc);
+ int (*handle_error)(struct irq_domain *domain,
+ struct msi_desc *desc, int error);
};
/**
@@ -155,6 +181,9 @@ int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
struct irq_domain *msi_create_irq_domain(struct device_node *of_node,
struct msi_domain_info *info,
struct irq_domain *parent);
+int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
+ int nvec);
+void msi_domain_free_irqs(struct irq_domain *domain, struct device *dev);
struct msi_domain_info *msi_get_domain_info(struct irq_domain *domain);
#endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */
--
cgit v1.2.1
From aeeb59657c35da64068336c20068da237f41ab76 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sat, 15 Nov 2014 22:24:05 +0800
Subject: genirq: Provide default callbacks for msi_domain_ops
Extend struct msi_domain_info and provide default callbacks for
msi_domain_ops.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Alexander Gordeev <agordeev@redhat.com>
Link: http://lkml.kernel.org/r/1416061447-9472-8-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 42 +++++++++++++++++++++++++++++++++++++-----
1 file changed, 37 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 7a93a988dce8..0098e2c8fd42 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -116,6 +116,7 @@ struct msi_controller {
#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
+#include <linux/irqhandler.h>
#include <asm/msi.h>
struct irq_domain;
@@ -142,11 +143,12 @@ struct msi_domain_info;
* interfaces which are based on msi_desc.
*/
struct msi_domain_ops {
- irq_hw_number_t (*get_hwirq)(struct msi_domain_info *info, void *arg);
+ irq_hw_number_t (*get_hwirq)(struct msi_domain_info *info,
+ msi_alloc_info_t *arg);
int (*msi_init)(struct irq_domain *domain,
struct msi_domain_info *info,
unsigned int virq, irq_hw_number_t hwirq,
- void *arg);
+ msi_alloc_info_t *arg);
void (*msi_free)(struct irq_domain *domain,
struct msi_domain_info *info,
unsigned int virq);
@@ -165,16 +167,46 @@ struct msi_domain_ops {
/**
* struct msi_domain_info - MSI interrupt domain data
- * @ops: The callback data structure
- * @chip: The associated interrupt chip
- * @data: Domain specific data
+ * @flags: Flags to decribe features and capabilities
+ * @ops: The callback data structure
+ * @chip: Optional: associated interrupt chip
+ * @chip_data: Optional: associated interrupt chip data
+ * @handler: Optional: associated interrupt flow handler
+ * @handler_data: Optional: associated interrupt flow handler data
+ * @handler_name: Optional: associated interrupt flow handler name
+ * @data: Optional: domain specific data
*/
struct msi_domain_info {
+ u32 flags;
struct msi_domain_ops *ops;
struct irq_chip *chip;
+ void *chip_data;
+ irq_flow_handler_t handler;
+ void *handler_data;
+ const char *handler_name;
void *data;
};
+/* Flags for msi_domain_info */
+enum {
+ /*
+ * Init non implemented ops callbacks with default MSI domain
+ * callbacks.
+ */
+ MSI_FLAG_USE_DEF_DOM_OPS = (1 << 0),
+ /*
+ * Init non implemented chip callbacks with default MSI chip
+ * callbacks.
+ */
+ MSI_FLAG_USE_DEF_CHIP_OPS = (1 << 1),
+ /* Build identity map between hwirq and irq */
+ MSI_FLAG_IDENTITY_MAP = (1 << 2),
+ /* Support multiple PCI MSI interrupts */
+ MSI_FLAG_MULTI_PCI_MSI = (1 << 3),
+ /* Support PCI MSIX interrupts */
+ MSI_FLAG_PCI_MSIX = (1 << 4),
+};
+
int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
bool force);
--
cgit v1.2.1
From 3878eaefb89aa841ae4c2150490cee864ac628cb Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Tue, 11 Nov 2014 21:02:18 +0800
Subject: PCI/MSI: Enhance core to support hierarchy irqdomain
Enhance PCI MSI core to support hierarchy irqdomain, so the common
code can be shared across architectures.
[ tglx: Extracted and combined from several patches ]
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 0098e2c8fd42..1628788aee25 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -220,4 +220,18 @@ struct msi_domain_info *msi_get_domain_info(struct irq_domain *domain);
#endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */
+#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN
+void pci_msi_domain_write_msg(struct irq_data *irq_data, struct msi_msg *msg);
+struct irq_domain *pci_msi_create_irq_domain(struct device_node *node,
+ struct msi_domain_info *info,
+ struct irq_domain *parent);
+int pci_msi_domain_alloc_irqs(struct irq_domain *domain, struct pci_dev *dev,
+ int nvec, int type);
+void pci_msi_domain_free_irqs(struct irq_domain *domain, struct pci_dev *dev);
+irq_hw_number_t pci_msi_domain_calc_hwirq(struct pci_dev *dev,
+ struct msi_desc *desc);
+int pci_msi_domain_check_cap(struct irq_domain *domain,
+ struct msi_domain_info *info, struct device *dev);
+#endif /* CONFIG_PCI_MSI_IRQ_DOMAIN */
+
#endif /* LINUX_MSI_H */
--
cgit v1.2.1
From 8e047adae969701c6cec136484bb9de8572af934 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Sat, 15 Nov 2014 22:24:07 +0800
Subject: PCI/MSI: Provide mechanism to alloc/free MSI/MSIX interrupt from
irqdomain
Provide mechanism to directly alloc/free MSI/MSIX interrupt from
irqdomain, which will be used to replace arch_setup_msi_irq()/
arch_setup_msi_irqs()/arch_teardown_msi_irq()/arch_teardown_msi_irqs().
To kill weak functions, this patch introduce a new weak function
arch_get_pci_msi_domain(), which is to retrieve the MSI irqdomain
for a PCI device. This weak function could be killed once we get
a common way to associate MSI domain with PCI device.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Alexander Gordeev <agordeev@redhat.com>
Link: http://lkml.kernel.org/r/1416061447-9472-10-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 1628788aee25..692f217ae813 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -228,6 +228,9 @@ struct irq_domain *pci_msi_create_irq_domain(struct device_node *node,
int pci_msi_domain_alloc_irqs(struct irq_domain *domain, struct pci_dev *dev,
int nvec, int type);
void pci_msi_domain_free_irqs(struct irq_domain *domain, struct pci_dev *dev);
+struct irq_domain *pci_msi_create_default_irq_domain(struct device_node *node,
+ struct msi_domain_info *info, struct irq_domain *parent);
+
irq_hw_number_t pci_msi_domain_calc_hwirq(struct pci_dev *dev,
struct msi_desc *desc);
int pci_msi_domain_check_cap(struct irq_domain *domain,
--
cgit v1.2.1
From 020c312658d61297ffe43b412441c69b1c36fb1b Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Sat, 15 Nov 2014 10:49:12 +0000
Subject: PCI/MSI: Allow an msi_controller to be associated to an irq domain
With the new stacked irq domains, it becomes pretty tempting to
allocate an MSI domain per PCI bus, which would remove the requirement
of either relying on arch-specific code, or a default PCI MSI domain.
By allowing the msi_controller structure to carry a pointer to an
irq_domain, we can easily use this in pci_msi_setup_msi_irqs. The
existing code can still be used as a fallback if the MSI driver does
not populate the domain field.
Tested on arm64 with the GICv3 ITS driver.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Link: http://lkml.kernel.org/r/1416048553-29289-2-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/msi.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 692f217ae813..8ac4a68ffae2 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -108,6 +108,9 @@ struct msi_controller {
struct device *dev;
struct device_node *of_node;
struct list_head list;
+#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
+ struct irq_domain *domain;
+#endif
int (*setup_irq)(struct msi_controller *chip, struct pci_dev *dev,
struct msi_desc *desc);
--
cgit v1.2.1
From c274e03af70544506cd7214fcc2d4c4376c2c6f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@redhat.com>
Date: Fri, 21 Nov 2014 22:21:50 +0100
Subject: kvm: x86: move assigned-dev.c and iommu.c to arch/x86/
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Now that ia64 is gone, we can hide deprecated device assignment in x86.
Notable changes:
- kvm_vm_ioctl_assigned_device() was moved to x86/kvm_arch_vm_ioctl()
The easy parts were removed from generic kvm code, remaining
- kvm_iommu_(un)map_pages() would require new code to be moved
- struct kvm_assigned_dev_kernel depends on struct kvm_irq_ack_notifier
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 26 --------------------------
1 file changed, 26 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ded64cb3a081..aa56894ce839 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -764,8 +764,6 @@ void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
-int kvm_iommu_map_guest(struct kvm *kvm);
-int kvm_iommu_unmap_guest(struct kvm *kvm);
int kvm_assign_device(struct kvm *kvm,
struct kvm_assigned_dev_kernel *assigned_dev);
int kvm_deassign_device(struct kvm *kvm,
@@ -781,11 +779,6 @@ static inline void kvm_iommu_unmap_pages(struct kvm *kvm,
struct kvm_memory_slot *slot)
{
}
-
-static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
-{
- return 0;
-}
#endif
static inline void kvm_guest_enter(void)
@@ -1005,25 +998,6 @@ static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; }
#endif
-#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
-
-long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
- unsigned long arg);
-
-void kvm_free_all_assigned_devices(struct kvm *kvm);
-
-#else
-
-static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
- unsigned long arg)
-{
- return -ENOTTY;
-}
-
-static inline void kvm_free_all_assigned_devices(struct kvm *kvm) {}
-
-#endif
-
static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu)
{
set_bit(req, &vcpu->requests);
--
cgit v1.2.1
From 4aab3b5b3ccf94fc907e66233e6ca4d8675759a6 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Sat, 22 Nov 2014 09:22:42 -0500
Subject: percpu-ref: fix DEAD flag contamination of percpu pointer
While decoupling ATOMIC and DEAD flags, f47ad4578461 ("percpu_ref:
decouple switching to percpu mode and reinit") updated
__ref_is_percpu() so that it only tests ATOMIC flag to determine
whether the ref is in percpu mode or not; however, while DEAD implies
ATOMIC, the two flags are set separately during percpu_ref_kill() and
if __ref_is_percpu() races percpu_ref_kill(), it may see DEAD w/o
ATOMIC. Because __ref_is_percpu() returns @ref->percpu_count_ptr
value verbatim as the percpu pointer after testing ATOMIC, the pointer
may now be contaminated with the DEAD flag.
This can be fixed by clearing the flag bits before returning the
pointer which was the fix proposed by Shaohua; however, as DEAD
implies ATOMIC, we can just test for both flags at once and avoid the
explicit masking.
Update __ref_is_percpu() so that it tests that both ATOMIC and DEAD
are clear before returning @ref->percpu_count_ptr as the percpu
pointer.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-Reviewed-by: Shaohua Li <shli@kernel.org>
Link: http://lkml.kernel.org/r/995deb699f5b873c45d667df4add3b06f73c2c25.1416638887.git.shli@kernel.org
Fixes: f47ad4578461 ("percpu_ref: decouple switching to percpu mode and reinit")
---
include/linux/percpu-refcount.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index d5c89e0dd0e6..51ce60c35f4c 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -133,7 +133,13 @@ static inline bool __ref_is_percpu(struct percpu_ref *ref,
/* paired with smp_store_release() in percpu_ref_reinit() */
smp_read_barrier_depends();
- if (unlikely(percpu_ptr & __PERCPU_REF_ATOMIC))
+ /*
+ * Theoretically, the following could test just ATOMIC; however,
+ * then we'd have to mask off DEAD separately as DEAD may be
+ * visible without ATOMIC if we race with percpu_ref_kill(). DEAD
+ * implies ATOMIC anyway. Test them together.
+ */
+ if (unlikely(percpu_ptr & __PERCPU_REF_ATOMIC_DEAD))
return false;
*percpu_countp = (unsigned long __percpu *)percpu_ptr;
--
cgit v1.2.1
From 40e7fcb19293cbdff02c74cb0668413480f82ea1 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Sun, 23 Nov 2014 21:22:54 +0800
Subject: ACPI: Add _DEP support to fix battery issue on Asus T100TA
ACPI 5.0 introduces _DEP (Operation Region Dependencies) to designate
device objects that OSPM should assign a higher priority in start
ordering due to future operation region accesses.
On Asus T100TA, ACPI battery info are read from a I2C slave device via
I2C operation region. Before I2C operation region handler is installed,
battery _STA always returns 0. There is a _DEP method of designating
start order under battery device node.
This patch is to implement _DEP feature to fix battery issue on the
Asus T100TA. Introducing acpi_dep_list and adding dep_unmet count
in struct acpi_device. During ACPI namespace scan, create struct
acpi_dep_data for a valid pair of master (device pointed to by _DEP)/
slave(device with _DEP), record master's and slave's ACPI handle in
it and put it into acpi_dep_list. The dep_unmet count will increase
by one if there is a device under its _DEP. Driver's probe() should
return EPROBE_DEFER when find dep_unmet is larger than 0. When I2C
operation region handler is installed, remove all struct acpi_dep_data
on the acpi_dep_list whose master is pointed to I2C host controller
and decrease slave's dep_unmet. When dep_unmet decreases to 0, all
_DEP conditions are met and then do acpi_bus_attach() for the device
in order to resolve battery _STA issue on the Asus T100TA.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=69011
Tested-by: Jan-Michael Brummer <jan.brummer@tabos.org>
Tested-by: Adam Williamson <adamw@happyassassin.net>
Tested-by: Michael Shigorin <shigorin@gmail.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpi_bus.h | 1 +
include/linux/acpi.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index f34a0835aa4f..ea3697dc7046 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -359,6 +359,7 @@ struct acpi_device {
void *driver_data;
struct device dev;
unsigned int physical_node_count;
+ unsigned int dep_unmet;
struct list_head physical_node_list;
struct mutex physical_node_lock;
void (*remove)(struct acpi_device *);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 407a12f663eb..6cb310388c88 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -431,6 +431,7 @@ static inline bool acpi_driver_match_device(struct device *dev,
int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
int acpi_device_modalias(struct device *, char *, int);
+void acpi_walk_dep_device_list(acpi_handle handle);
struct platform_device *acpi_create_platform_device(struct acpi_device *);
#define ACPI_PTR(_ptr) (_ptr)
--
cgit v1.2.1
From f144d1496b47e7450f41b767d0d91c724c2198bc Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Fri, 3 Oct 2014 15:13:24 +1000
Subject: PCI/MSI: Add device flag indicating that 64-bit MSIs don't work
This can be set by quirks/drivers to be used by the architecture code
that assigns the MSI addresses.
We additionally add verification in the core MSI code that the values
assigned by the architecture do satisfy the limitation in order to fail
gracefully if they don't (ie. the arch hasn't been updated to deal with
that quirk yet).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
---
include/linux/pci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5be8db45e368..4c8ac5fcc224 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -331,6 +331,7 @@ struct pci_dev {
unsigned int is_added:1;
unsigned int is_busmaster:1; /* device is busmaster */
unsigned int no_msi:1; /* device may not use msi */
+ unsigned int no_64bit_msi:1; /* device may only use 32-bit MSIs */
unsigned int block_cfg_access:1; /* config space access is blocked */
unsigned int broken_parity_status:1; /* Device generates false positive parity */
unsigned int irq_reroute_variant:2; /* device needs IRQ rerouting variant */
--
cgit v1.2.1
From 4060bbe9931eca2ed3c2124022a070a75d507472 Mon Sep 17 00:00:00 2001
From: Andrew Bresticker <abrestic@chromium.org>
Date: Mon, 20 Oct 2014 12:03:53 -0700
Subject: MIPS: Move gic.h to include/linux/irqchip/mips-gic.h
Now that the MIPS GIC irqchip lives in drivers/irqchip/, move
its header over to include/linux/irqchip/.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8129/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
include/linux/irqchip/mips-gic.h | 325 +++++++++++++++++++++++++++++++++++++++
1 file changed, 325 insertions(+)
create mode 100644 include/linux/irqchip/mips-gic.h
(limited to 'include')
diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h
new file mode 100644
index 000000000000..285944ca9f6c
--- /dev/null
+++ b/include/linux/irqchip/mips-gic.h
@@ -0,0 +1,325 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000, 07 MIPS Technologies, Inc.
+ *
+ * GIC Register Definitions
+ *
+ */
+#ifndef _ASM_GICREGS_H
+#define _ASM_GICREGS_H
+
+#include <linux/bitmap.h>
+#include <linux/threads.h>
+
+#include <irq.h>
+
+#define GIC_MAX_INTRS 256
+
+/* Constants */
+#define GIC_POL_POS 1
+#define GIC_POL_NEG 0
+#define GIC_TRIG_EDGE 1
+#define GIC_TRIG_LEVEL 0
+#define GIC_TRIG_DUAL_ENABLE 1
+#define GIC_TRIG_DUAL_DISABLE 0
+
+#define MSK(n) ((1 << (n)) - 1)
+
+/* Accessors */
+#define GIC_REG(segment, offset) (segment##_##SECTION_OFS + offset##_##OFS)
+
+/* GIC Address Space */
+#define SHARED_SECTION_OFS 0x0000
+#define SHARED_SECTION_SIZE 0x8000
+#define VPE_LOCAL_SECTION_OFS 0x8000
+#define VPE_LOCAL_SECTION_SIZE 0x4000
+#define VPE_OTHER_SECTION_OFS 0xc000
+#define VPE_OTHER_SECTION_SIZE 0x4000
+#define USM_VISIBLE_SECTION_OFS 0x10000
+#define USM_VISIBLE_SECTION_SIZE 0x10000
+
+/* Register Map for Shared Section */
+
+#define GIC_SH_CONFIG_OFS 0x0000
+
+/* Shared Global Counter */
+#define GIC_SH_COUNTER_31_00_OFS 0x0010
+#define GIC_SH_COUNTER_63_32_OFS 0x0014
+#define GIC_SH_REVISIONID_OFS 0x0020
+
+/* Interrupt Polarity */
+#define GIC_SH_POL_31_0_OFS 0x0100
+#define GIC_SH_POL_63_32_OFS 0x0104
+#define GIC_SH_POL_95_64_OFS 0x0108
+#define GIC_SH_POL_127_96_OFS 0x010c
+#define GIC_SH_POL_159_128_OFS 0x0110
+#define GIC_SH_POL_191_160_OFS 0x0114
+#define GIC_SH_POL_223_192_OFS 0x0118
+#define GIC_SH_POL_255_224_OFS 0x011c
+
+/* Edge/Level Triggering */
+#define GIC_SH_TRIG_31_0_OFS 0x0180
+#define GIC_SH_TRIG_63_32_OFS 0x0184
+#define GIC_SH_TRIG_95_64_OFS 0x0188
+#define GIC_SH_TRIG_127_96_OFS 0x018c
+#define GIC_SH_TRIG_159_128_OFS 0x0190
+#define GIC_SH_TRIG_191_160_OFS 0x0194
+#define GIC_SH_TRIG_223_192_OFS 0x0198
+#define GIC_SH_TRIG_255_224_OFS 0x019c
+
+/* Dual Edge Triggering */
+#define GIC_SH_DUAL_31_0_OFS 0x0200
+#define GIC_SH_DUAL_63_32_OFS 0x0204
+#define GIC_SH_DUAL_95_64_OFS 0x0208
+#define GIC_SH_DUAL_127_96_OFS 0x020c
+#define GIC_SH_DUAL_159_128_OFS 0x0210
+#define GIC_SH_DUAL_191_160_OFS 0x0214
+#define GIC_SH_DUAL_223_192_OFS 0x0218
+#define GIC_SH_DUAL_255_224_OFS 0x021c
+
+/* Set/Clear corresponding bit in Edge Detect Register */
+#define GIC_SH_WEDGE_OFS 0x0280
+
+/* Reset Mask - Disables Interrupt */
+#define GIC_SH_RMASK_31_0_OFS 0x0300
+#define GIC_SH_RMASK_63_32_OFS 0x0304
+#define GIC_SH_RMASK_95_64_OFS 0x0308
+#define GIC_SH_RMASK_127_96_OFS 0x030c
+#define GIC_SH_RMASK_159_128_OFS 0x0310
+#define GIC_SH_RMASK_191_160_OFS 0x0314
+#define GIC_SH_RMASK_223_192_OFS 0x0318
+#define GIC_SH_RMASK_255_224_OFS 0x031c
+
+/* Set Mask (WO) - Enables Interrupt */
+#define GIC_SH_SMASK_31_0_OFS 0x0380
+#define GIC_SH_SMASK_63_32_OFS 0x0384
+#define GIC_SH_SMASK_95_64_OFS 0x0388
+#define GIC_SH_SMASK_127_96_OFS 0x038c
+#define GIC_SH_SMASK_159_128_OFS 0x0390
+#define GIC_SH_SMASK_191_160_OFS 0x0394
+#define GIC_SH_SMASK_223_192_OFS 0x0398
+#define GIC_SH_SMASK_255_224_OFS 0x039c
+
+/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
+#define GIC_SH_MASK_31_0_OFS 0x0400
+#define GIC_SH_MASK_63_32_OFS 0x0404
+#define GIC_SH_MASK_95_64_OFS 0x0408
+#define GIC_SH_MASK_127_96_OFS 0x040c
+#define GIC_SH_MASK_159_128_OFS 0x0410
+#define GIC_SH_MASK_191_160_OFS 0x0414
+#define GIC_SH_MASK_223_192_OFS 0x0418
+#define GIC_SH_MASK_255_224_OFS 0x041c
+
+/* Pending Global Interrupts (RO) */
+#define GIC_SH_PEND_31_0_OFS 0x0480
+#define GIC_SH_PEND_63_32_OFS 0x0484
+#define GIC_SH_PEND_95_64_OFS 0x0488
+#define GIC_SH_PEND_127_96_OFS 0x048c
+#define GIC_SH_PEND_159_128_OFS 0x0490
+#define GIC_SH_PEND_191_160_OFS 0x0494
+#define GIC_SH_PEND_223_192_OFS 0x0498
+#define GIC_SH_PEND_255_224_OFS 0x049c
+
+#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500
+
+/* Maps Interrupt X to a Pin */
+#define GIC_SH_MAP_TO_PIN(intr) (4 * (intr))
+
+#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000
+
+/* Maps Interrupt X to a VPE */
+#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
+ ((32 * (intr)) + (((vpe) / 32) * 4))
+#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe) (1 << ((vpe) % 32))
+
+/* Convert an interrupt number to a byte offset/bit for multi-word registers */
+#define GIC_INTR_OFS(intr) (((intr) / 32)*4)
+#define GIC_INTR_BIT(intr) ((intr) % 32)
+
+/* Polarity : Reset Value is always 0 */
+#define GIC_SH_SET_POLARITY_OFS 0x0100
+
+/* Triggering : Reset Value is always 0 */
+#define GIC_SH_SET_TRIGGER_OFS 0x0180
+
+/* Dual edge triggering : Reset Value is always 0 */
+#define GIC_SH_SET_DUAL_OFS 0x0200
+
+/* Mask manipulation */
+#define GIC_SH_SMASK_OFS 0x0380
+#define GIC_SH_RMASK_OFS 0x0300
+
+/* Register Map for Local Section */
+#define GIC_VPE_CTL_OFS 0x0000
+#define GIC_VPE_PEND_OFS 0x0004
+#define GIC_VPE_MASK_OFS 0x0008
+#define GIC_VPE_RMASK_OFS 0x000c
+#define GIC_VPE_SMASK_OFS 0x0010
+#define GIC_VPE_WD_MAP_OFS 0x0040
+#define GIC_VPE_COMPARE_MAP_OFS 0x0044
+#define GIC_VPE_TIMER_MAP_OFS 0x0048
+#define GIC_VPE_FDC_MAP_OFS 0x004c
+#define GIC_VPE_PERFCTR_MAP_OFS 0x0050
+#define GIC_VPE_SWINT0_MAP_OFS 0x0054
+#define GIC_VPE_SWINT1_MAP_OFS 0x0058
+#define GIC_VPE_OTHER_ADDR_OFS 0x0080
+#define GIC_VPE_WD_CONFIG0_OFS 0x0090
+#define GIC_VPE_WD_COUNT0_OFS 0x0094
+#define GIC_VPE_WD_INITIAL0_OFS 0x0098
+#define GIC_VPE_COMPARE_LO_OFS 0x00a0
+#define GIC_VPE_COMPARE_HI_OFS 0x00a4
+
+#define GIC_VPE_EIC_SHADOW_SET_BASE_OFS 0x0100
+#define GIC_VPE_EIC_SS(intr) (4 * (intr))
+
+#define GIC_VPE_EIC_VEC_BASE_OFS 0x0800
+#define GIC_VPE_EIC_VEC(intr) (4 * (intr))
+
+#define GIC_VPE_TENABLE_NMI_OFS 0x1000
+#define GIC_VPE_TENABLE_YQ_OFS 0x1004
+#define GIC_VPE_TENABLE_INT_31_0_OFS 0x1080
+#define GIC_VPE_TENABLE_INT_63_32_OFS 0x1084
+
+/* User Mode Visible Section Register Map */
+#define GIC_UMV_SH_COUNTER_31_00_OFS 0x0000
+#define GIC_UMV_SH_COUNTER_63_32_OFS 0x0004
+
+/* Masks */
+#define GIC_SH_CONFIG_COUNTSTOP_SHF 28
+#define GIC_SH_CONFIG_COUNTSTOP_MSK (MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)
+
+#define GIC_SH_CONFIG_COUNTBITS_SHF 24
+#define GIC_SH_CONFIG_COUNTBITS_MSK (MSK(4) << GIC_SH_CONFIG_COUNTBITS_SHF)
+
+#define GIC_SH_CONFIG_NUMINTRS_SHF 16
+#define GIC_SH_CONFIG_NUMINTRS_MSK (MSK(8) << GIC_SH_CONFIG_NUMINTRS_SHF)
+
+#define GIC_SH_CONFIG_NUMVPES_SHF 0
+#define GIC_SH_CONFIG_NUMVPES_MSK (MSK(8) << GIC_SH_CONFIG_NUMVPES_SHF)
+
+#define GIC_SH_WEDGE_SET(intr) (intr | (0x1 << 31))
+#define GIC_SH_WEDGE_CLR(intr) (intr & ~(0x1 << 31))
+
+#define GIC_MAP_TO_PIN_SHF 31
+#define GIC_MAP_TO_PIN_MSK (MSK(1) << GIC_MAP_TO_PIN_SHF)
+#define GIC_MAP_TO_NMI_SHF 30
+#define GIC_MAP_TO_NMI_MSK (MSK(1) << GIC_MAP_TO_NMI_SHF)
+#define GIC_MAP_TO_YQ_SHF 29
+#define GIC_MAP_TO_YQ_MSK (MSK(1) << GIC_MAP_TO_YQ_SHF)
+#define GIC_MAP_SHF 0
+#define GIC_MAP_MSK (MSK(6) << GIC_MAP_SHF)
+
+/* GIC_VPE_CTL Masks */
+#define GIC_VPE_CTL_FDC_RTBL_SHF 4
+#define GIC_VPE_CTL_FDC_RTBL_MSK (MSK(1) << GIC_VPE_CTL_FDC_RTBL_SHF)
+#define GIC_VPE_CTL_SWINT_RTBL_SHF 3
+#define GIC_VPE_CTL_SWINT_RTBL_MSK (MSK(1) << GIC_VPE_CTL_SWINT_RTBL_SHF)
+#define GIC_VPE_CTL_PERFCNT_RTBL_SHF 2
+#define GIC_VPE_CTL_PERFCNT_RTBL_MSK (MSK(1) << GIC_VPE_CTL_PERFCNT_RTBL_SHF)
+#define GIC_VPE_CTL_TIMER_RTBL_SHF 1
+#define GIC_VPE_CTL_TIMER_RTBL_MSK (MSK(1) << GIC_VPE_CTL_TIMER_RTBL_SHF)
+#define GIC_VPE_CTL_EIC_MODE_SHF 0
+#define GIC_VPE_CTL_EIC_MODE_MSK (MSK(1) << GIC_VPE_CTL_EIC_MODE_SHF)
+
+/* GIC_VPE_PEND Masks */
+#define GIC_VPE_PEND_WD_SHF 0
+#define GIC_VPE_PEND_WD_MSK (MSK(1) << GIC_VPE_PEND_WD_SHF)
+#define GIC_VPE_PEND_CMP_SHF 1
+#define GIC_VPE_PEND_CMP_MSK (MSK(1) << GIC_VPE_PEND_CMP_SHF)
+#define GIC_VPE_PEND_TIMER_SHF 2
+#define GIC_VPE_PEND_TIMER_MSK (MSK(1) << GIC_VPE_PEND_TIMER_SHF)
+#define GIC_VPE_PEND_PERFCOUNT_SHF 3
+#define GIC_VPE_PEND_PERFCOUNT_MSK (MSK(1) << GIC_VPE_PEND_PERFCOUNT_SHF)
+#define GIC_VPE_PEND_SWINT0_SHF 4
+#define GIC_VPE_PEND_SWINT0_MSK (MSK(1) << GIC_VPE_PEND_SWINT0_SHF)
+#define GIC_VPE_PEND_SWINT1_SHF 5
+#define GIC_VPE_PEND_SWINT1_MSK (MSK(1) << GIC_VPE_PEND_SWINT1_SHF)
+
+/* GIC_VPE_RMASK Masks */
+#define GIC_VPE_RMASK_WD_SHF 0
+#define GIC_VPE_RMASK_WD_MSK (MSK(1) << GIC_VPE_RMASK_WD_SHF)
+#define GIC_VPE_RMASK_CMP_SHF 1
+#define GIC_VPE_RMASK_CMP_MSK (MSK(1) << GIC_VPE_RMASK_CMP_SHF)
+#define GIC_VPE_RMASK_TIMER_SHF 2
+#define GIC_VPE_RMASK_TIMER_MSK (MSK(1) << GIC_VPE_RMASK_TIMER_SHF)
+#define GIC_VPE_RMASK_PERFCNT_SHF 3
+#define GIC_VPE_RMASK_PERFCNT_MSK (MSK(1) << GIC_VPE_RMASK_PERFCNT_SHF)
+#define GIC_VPE_RMASK_SWINT0_SHF 4
+#define GIC_VPE_RMASK_SWINT0_MSK (MSK(1) << GIC_VPE_RMASK_SWINT0_SHF)
+#define GIC_VPE_RMASK_SWINT1_SHF 5
+#define GIC_VPE_RMASK_SWINT1_MSK (MSK(1) << GIC_VPE_RMASK_SWINT1_SHF)
+
+/* GIC_VPE_SMASK Masks */
+#define GIC_VPE_SMASK_WD_SHF 0
+#define GIC_VPE_SMASK_WD_MSK (MSK(1) << GIC_VPE_SMASK_WD_SHF)
+#define GIC_VPE_SMASK_CMP_SHF 1
+#define GIC_VPE_SMASK_CMP_MSK (MSK(1) << GIC_VPE_SMASK_CMP_SHF)
+#define GIC_VPE_SMASK_TIMER_SHF 2
+#define GIC_VPE_SMASK_TIMER_MSK (MSK(1) << GIC_VPE_SMASK_TIMER_SHF)
+#define GIC_VPE_SMASK_PERFCNT_SHF 3
+#define GIC_VPE_SMASK_PERFCNT_MSK (MSK(1) << GIC_VPE_SMASK_PERFCNT_SHF)
+#define GIC_VPE_SMASK_SWINT0_SHF 4
+#define GIC_VPE_SMASK_SWINT0_MSK (MSK(1) << GIC_VPE_SMASK_SWINT0_SHF)
+#define GIC_VPE_SMASK_SWINT1_SHF 5
+#define GIC_VPE_SMASK_SWINT1_MSK (MSK(1) << GIC_VPE_SMASK_SWINT1_SHF)
+
+/* GIC nomenclature for Core Interrupt Pins. */
+#define GIC_CPU_INT0 0 /* Core Interrupt 2 */
+#define GIC_CPU_INT1 1 /* . */
+#define GIC_CPU_INT2 2 /* . */
+#define GIC_CPU_INT3 3 /* . */
+#define GIC_CPU_INT4 4 /* . */
+#define GIC_CPU_INT5 5 /* Core Interrupt 7 */
+
+/* Add 2 to convert GIC CPU pin to core interrupt */
+#define GIC_CPU_PIN_OFFSET 2
+
+/* Add 2 to convert non-EIC hardware interrupt to EIC vector number. */
+#define GIC_CPU_TO_VEC_OFFSET (2)
+
+/* Mapped interrupt to pin X, then GIC will generate the vector (X+1). */
+#define GIC_PIN_TO_VEC_OFFSET (1)
+
+/* Local GIC interrupts. */
+#define GIC_LOCAL_INT_WD 0 /* GIC watchdog */
+#define GIC_LOCAL_INT_COMPARE 1 /* GIC count and compare timer */
+#define GIC_LOCAL_INT_TIMER 2 /* CPU timer interrupt */
+#define GIC_LOCAL_INT_PERFCTR 3 /* CPU performance counter */
+#define GIC_LOCAL_INT_SWINT0 4 /* CPU software interrupt 0 */
+#define GIC_LOCAL_INT_SWINT1 5 /* CPU software interrupt 1 */
+#define GIC_LOCAL_INT_FDC 6 /* CPU fast debug channel */
+#define GIC_NUM_LOCAL_INTRS 7
+
+/* Convert between local/shared IRQ number and GIC HW IRQ number. */
+#define GIC_LOCAL_HWIRQ_BASE 0
+#define GIC_LOCAL_TO_HWIRQ(x) (GIC_LOCAL_HWIRQ_BASE + (x))
+#define GIC_HWIRQ_TO_LOCAL(x) ((x) - GIC_LOCAL_HWIRQ_BASE)
+#define GIC_SHARED_HWIRQ_BASE GIC_NUM_LOCAL_INTRS
+#define GIC_SHARED_TO_HWIRQ(x) (GIC_SHARED_HWIRQ_BASE + (x))
+#define GIC_HWIRQ_TO_SHARED(x) ((x) - GIC_SHARED_HWIRQ_BASE)
+
+#include <linux/clocksource.h>
+#include <linux/irq.h>
+
+extern unsigned int gic_present;
+extern unsigned int gic_frequency;
+
+extern void gic_init(unsigned long gic_base_addr,
+ unsigned long gic_addrspace_size, unsigned int cpu_vec,
+ unsigned int irqbase);
+extern void gic_clocksource_init(unsigned int);
+extern cycle_t gic_read_count(void);
+extern unsigned int gic_get_count_width(void);
+extern cycle_t gic_read_compare(void);
+extern void gic_write_compare(cycle_t cnt);
+extern void gic_write_cpu_compare(cycle_t cnt, int cpu);
+extern void gic_send_ipi(unsigned int intr);
+extern unsigned int plat_ipi_call_int_xlate(unsigned int);
+extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
+extern unsigned int gic_get_timer_pending(void);
+extern int gic_get_c0_compare_int(void);
+extern int gic_get_c0_perfcount_int(void);
+#endif /* _ASM_GICREGS_H */
--
cgit v1.2.1
From 774c105ed8d791b709b40082d107f5bb40254374 Mon Sep 17 00:00:00 2001
From: Paul Burton <paul.burton@imgtec.com>
Date: Thu, 11 Sep 2014 08:30:16 +0100
Subject: binfmt_elf: allow arch code to examine PT_LOPROC ... PT_HIPROC
headers
MIPS is introducing new variants of its O32 ABI which differ in their
handling of floating point, in order to enable a gradual transition
towards a world where mips32 binaries can take advantage of new hardware
features only available when configured for certain FP modes. In order
to do this ELF binaries are being augmented with a new section that
indicates, amongst other things, the FP mode requirements of the binary.
The presence & location of such a section is indicated by a program
header in the PT_LOPROC ... PT_HIPROC range.
In order to allow the MIPS architecture code to examine the program
header & section in question, pass all program headers in this range
to an architecture-specific arch_elf_pt_proc function. This function
may return an error if the header is deemed invalid or unsuitable for
the system, in which case that error will be returned from
load_elf_binary and upwards through the execve syscall.
A means is required for the architecture code to make a decision once
it is known that all such headers have been seen, but before it is too
late to return from an execve syscall. For this purpose the
arch_check_elf function is added, and called once, after all PT_LOPROC
to PT_HIPROC headers have been passed to arch_elf_pt_proc but before
the code which invoked execve has been lost. This enables the
architecture code to make a decision based upon all the headers present
in an ELF binary and its interpreter, as is required to forbid
conflicting FP ABI requirements between an ELF & its interpreter.
In order to allow data to be stored throughout the calls to the above
functions, struct arch_elf_state is introduced.
Finally a variant of the SET_PERSONALITY macro is introduced which
accepts a pointer to the struct arch_elf_state, allowing it to act
based upon state observed from the architecture specific program
headers.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7679/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
include/linux/elf.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 67a5fa7830c4..20fa8d8ae313 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -15,6 +15,11 @@
set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
#endif
+#ifndef SET_PERSONALITY2
+#define SET_PERSONALITY2(ex, state) \
+ SET_PERSONALITY(ex)
+#endif
+
#if ELF_CLASS == ELFCLASS32
extern Elf32_Dyn _DYNAMIC [];
--
cgit v1.2.1
From 824f3f7fa2b441416e3d9aaf1f19feab7db44747 Mon Sep 17 00:00:00 2001
From: Andrew Bresticker <abrestic@chromium.org>
Date: Mon, 20 Oct 2014 12:03:54 -0700
Subject: irqchip: mips-gic: Clean up header file
Remove duplicate #defines and unnecessary #includes, fix parenthesization,
and re-order register definitions in ascending order.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8128/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
include/linux/irqchip/mips-gic.h | 129 ++++++++-------------------------------
1 file changed, 27 insertions(+), 102 deletions(-)
(limited to 'include')
diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h
index 285944ca9f6c..0350effb7ccc 100644
--- a/include/linux/irqchip/mips-gic.h
+++ b/include/linux/irqchip/mips-gic.h
@@ -4,17 +4,11 @@
* for more details.
*
* Copyright (C) 2000, 07 MIPS Technologies, Inc.
- *
- * GIC Register Definitions
- *
*/
-#ifndef _ASM_GICREGS_H
-#define _ASM_GICREGS_H
-
-#include <linux/bitmap.h>
-#include <linux/threads.h>
+#ifndef __LINUX_IRQCHIP_MIPS_GIC_H
+#define __LINUX_IRQCHIP_MIPS_GIC_H
-#include <irq.h>
+#include <linux/clocksource.h>
#define GIC_MAX_INTRS 256
@@ -50,108 +44,42 @@
#define GIC_SH_COUNTER_63_32_OFS 0x0014
#define GIC_SH_REVISIONID_OFS 0x0020
-/* Interrupt Polarity */
-#define GIC_SH_POL_31_0_OFS 0x0100
-#define GIC_SH_POL_63_32_OFS 0x0104
-#define GIC_SH_POL_95_64_OFS 0x0108
-#define GIC_SH_POL_127_96_OFS 0x010c
-#define GIC_SH_POL_159_128_OFS 0x0110
-#define GIC_SH_POL_191_160_OFS 0x0114
-#define GIC_SH_POL_223_192_OFS 0x0118
-#define GIC_SH_POL_255_224_OFS 0x011c
-
-/* Edge/Level Triggering */
-#define GIC_SH_TRIG_31_0_OFS 0x0180
-#define GIC_SH_TRIG_63_32_OFS 0x0184
-#define GIC_SH_TRIG_95_64_OFS 0x0188
-#define GIC_SH_TRIG_127_96_OFS 0x018c
-#define GIC_SH_TRIG_159_128_OFS 0x0190
-#define GIC_SH_TRIG_191_160_OFS 0x0194
-#define GIC_SH_TRIG_223_192_OFS 0x0198
-#define GIC_SH_TRIG_255_224_OFS 0x019c
-
-/* Dual Edge Triggering */
-#define GIC_SH_DUAL_31_0_OFS 0x0200
-#define GIC_SH_DUAL_63_32_OFS 0x0204
-#define GIC_SH_DUAL_95_64_OFS 0x0208
-#define GIC_SH_DUAL_127_96_OFS 0x020c
-#define GIC_SH_DUAL_159_128_OFS 0x0210
-#define GIC_SH_DUAL_191_160_OFS 0x0214
-#define GIC_SH_DUAL_223_192_OFS 0x0218
-#define GIC_SH_DUAL_255_224_OFS 0x021c
+/* Convert an interrupt number to a byte offset/bit for multi-word registers */
+#define GIC_INTR_OFS(intr) (((intr) / 32) * 4)
+#define GIC_INTR_BIT(intr) ((intr) % 32)
+
+/* Polarity : Reset Value is always 0 */
+#define GIC_SH_SET_POLARITY_OFS 0x0100
+
+/* Triggering : Reset Value is always 0 */
+#define GIC_SH_SET_TRIGGER_OFS 0x0180
+
+/* Dual edge triggering : Reset Value is always 0 */
+#define GIC_SH_SET_DUAL_OFS 0x0200
/* Set/Clear corresponding bit in Edge Detect Register */
#define GIC_SH_WEDGE_OFS 0x0280
-/* Reset Mask - Disables Interrupt */
-#define GIC_SH_RMASK_31_0_OFS 0x0300
-#define GIC_SH_RMASK_63_32_OFS 0x0304
-#define GIC_SH_RMASK_95_64_OFS 0x0308
-#define GIC_SH_RMASK_127_96_OFS 0x030c
-#define GIC_SH_RMASK_159_128_OFS 0x0310
-#define GIC_SH_RMASK_191_160_OFS 0x0314
-#define GIC_SH_RMASK_223_192_OFS 0x0318
-#define GIC_SH_RMASK_255_224_OFS 0x031c
-
-/* Set Mask (WO) - Enables Interrupt */
-#define GIC_SH_SMASK_31_0_OFS 0x0380
-#define GIC_SH_SMASK_63_32_OFS 0x0384
-#define GIC_SH_SMASK_95_64_OFS 0x0388
-#define GIC_SH_SMASK_127_96_OFS 0x038c
-#define GIC_SH_SMASK_159_128_OFS 0x0390
-#define GIC_SH_SMASK_191_160_OFS 0x0394
-#define GIC_SH_SMASK_223_192_OFS 0x0398
-#define GIC_SH_SMASK_255_224_OFS 0x039c
+/* Mask manipulation */
+#define GIC_SH_RMASK_OFS 0x0300
+#define GIC_SH_SMASK_OFS 0x0380
/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
-#define GIC_SH_MASK_31_0_OFS 0x0400
-#define GIC_SH_MASK_63_32_OFS 0x0404
-#define GIC_SH_MASK_95_64_OFS 0x0408
-#define GIC_SH_MASK_127_96_OFS 0x040c
-#define GIC_SH_MASK_159_128_OFS 0x0410
-#define GIC_SH_MASK_191_160_OFS 0x0414
-#define GIC_SH_MASK_223_192_OFS 0x0418
-#define GIC_SH_MASK_255_224_OFS 0x041c
+#define GIC_SH_MASK_OFS 0x0400
/* Pending Global Interrupts (RO) */
-#define GIC_SH_PEND_31_0_OFS 0x0480
-#define GIC_SH_PEND_63_32_OFS 0x0484
-#define GIC_SH_PEND_95_64_OFS 0x0488
-#define GIC_SH_PEND_127_96_OFS 0x048c
-#define GIC_SH_PEND_159_128_OFS 0x0490
-#define GIC_SH_PEND_191_160_OFS 0x0494
-#define GIC_SH_PEND_223_192_OFS 0x0498
-#define GIC_SH_PEND_255_224_OFS 0x049c
-
-#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500
+#define GIC_SH_PEND_OFS 0x0480
/* Maps Interrupt X to a Pin */
+#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500
#define GIC_SH_MAP_TO_PIN(intr) (4 * (intr))
-#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000
-
/* Maps Interrupt X to a VPE */
+#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000
#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
((32 * (intr)) + (((vpe) / 32) * 4))
#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe) (1 << ((vpe) % 32))
-/* Convert an interrupt number to a byte offset/bit for multi-word registers */
-#define GIC_INTR_OFS(intr) (((intr) / 32)*4)
-#define GIC_INTR_BIT(intr) ((intr) % 32)
-
-/* Polarity : Reset Value is always 0 */
-#define GIC_SH_SET_POLARITY_OFS 0x0100
-
-/* Triggering : Reset Value is always 0 */
-#define GIC_SH_SET_TRIGGER_OFS 0x0180
-
-/* Dual edge triggering : Reset Value is always 0 */
-#define GIC_SH_SET_DUAL_OFS 0x0200
-
-/* Mask manipulation */
-#define GIC_SH_SMASK_OFS 0x0380
-#define GIC_SH_RMASK_OFS 0x0300
-
/* Register Map for Local Section */
#define GIC_VPE_CTL_OFS 0x0000
#define GIC_VPE_PEND_OFS 0x0004
@@ -200,8 +128,8 @@
#define GIC_SH_CONFIG_NUMVPES_SHF 0
#define GIC_SH_CONFIG_NUMVPES_MSK (MSK(8) << GIC_SH_CONFIG_NUMVPES_SHF)
-#define GIC_SH_WEDGE_SET(intr) (intr | (0x1 << 31))
-#define GIC_SH_WEDGE_CLR(intr) (intr & ~(0x1 << 31))
+#define GIC_SH_WEDGE_SET(intr) ((intr) | (0x1 << 31))
+#define GIC_SH_WEDGE_CLR(intr) ((intr) & ~(0x1 << 31))
#define GIC_MAP_TO_PIN_SHF 31
#define GIC_MAP_TO_PIN_MSK (MSK(1) << GIC_MAP_TO_PIN_SHF)
@@ -278,10 +206,10 @@
#define GIC_CPU_PIN_OFFSET 2
/* Add 2 to convert non-EIC hardware interrupt to EIC vector number. */
-#define GIC_CPU_TO_VEC_OFFSET (2)
+#define GIC_CPU_TO_VEC_OFFSET 2
/* Mapped interrupt to pin X, then GIC will generate the vector (X+1). */
-#define GIC_PIN_TO_VEC_OFFSET (1)
+#define GIC_PIN_TO_VEC_OFFSET 1
/* Local GIC interrupts. */
#define GIC_LOCAL_INT_WD 0 /* GIC watchdog */
@@ -301,9 +229,6 @@
#define GIC_SHARED_TO_HWIRQ(x) (GIC_SHARED_HWIRQ_BASE + (x))
#define GIC_HWIRQ_TO_SHARED(x) ((x) - GIC_SHARED_HWIRQ_BASE)
-#include <linux/clocksource.h>
-#include <linux/irq.h>
-
extern unsigned int gic_present;
extern unsigned int gic_frequency;
@@ -322,4 +247,4 @@ extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
extern unsigned int gic_get_timer_pending(void);
extern int gic_get_c0_compare_int(void);
extern int gic_get_c0_perfcount_int(void);
-#endif /* _ASM_GICREGS_H */
+#endif /* __LINUX_IRQCHIP_MIPS_GIC_H */
--
cgit v1.2.1
From b0854514537e4e2f0a599ca05d18fe95dcd3ee42 Mon Sep 17 00:00:00 2001
From: Andrew Bresticker <abrestic@chromium.org>
Date: Mon, 20 Oct 2014 12:04:01 -0700
Subject: clocksource: mips-gic: Move gic_frequency to clocksource driver
There's no reason for gic_frequency to be global any more and it
certainly doesn't belong in the GIC irqchip driver, so move it to
the GIC clocksource driver.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8137/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
include/linux/irqchip/mips-gic.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h
index 0350effb7ccc..420f77b34d02 100644
--- a/include/linux/irqchip/mips-gic.h
+++ b/include/linux/irqchip/mips-gic.h
@@ -230,7 +230,6 @@
#define GIC_HWIRQ_TO_SHARED(x) ((x) - GIC_SHARED_HWIRQ_BASE)
extern unsigned int gic_present;
-extern unsigned int gic_frequency;
extern void gic_init(unsigned long gic_base_addr,
unsigned long gic_addrspace_size, unsigned int cpu_vec,
--
cgit v1.2.1
From 2ff404005e9f94ee3d05b6b0dac8204c1fcc2346 Mon Sep 17 00:00:00 2001
From: Andrew Bresticker <abrestic@chromium.org>
Date: Wed, 12 Nov 2014 11:43:37 -0800
Subject: of: Add binding document for MIPS GIC
The Global Interrupt Controller (GIC) present on certain MIPS systems
can be used to route external interrupts to individual VPEs and CPU
interrupt vectors. It also supports a timer and software-generated
interrupts.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: John Crispin <blogic@openwrt.org>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8420/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
include/dt-bindings/interrupt-controller/mips-gic.h | 9 +++++++++
1 file changed, 9 insertions(+)
create mode 100644 include/dt-bindings/interrupt-controller/mips-gic.h
(limited to 'include')
diff --git a/include/dt-bindings/interrupt-controller/mips-gic.h b/include/dt-bindings/interrupt-controller/mips-gic.h
new file mode 100644
index 000000000000..cf35a577e371
--- /dev/null
+++ b/include/dt-bindings/interrupt-controller/mips-gic.h
@@ -0,0 +1,9 @@
+#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_MIPS_GIC_H
+#define _DT_BINDINGS_INTERRUPT_CONTROLLER_MIPS_GIC_H
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#define GIC_SHARED 0
+#define GIC_LOCAL 1
+
+#endif
--
cgit v1.2.1
From 227158db160449b6513d2e31894a135104b90e90 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 6 Apr 2014 18:47:38 -0400
Subject: new helper: skb_copy_and_csum_datagram_msg()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 78c299f40bac..cbe4b2078b30 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2651,6 +2651,11 @@ static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset,
}
int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb, int hlen,
struct iovec *iov);
+static inline int skb_copy_and_csum_datagram_msg(struct sk_buff *skb, int hlen,
+ struct msghdr *msg)
+{
+ return skb_copy_and_csum_datagram_iovec(skb, hlen, msg->msg_iov);
+}
int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
const struct iovec *from, int from_offset,
int len);
--
cgit v1.2.1
From 6ce8e9ce5989ae13f493062975304700be86d20e Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 6 Apr 2014 21:25:44 -0400
Subject: new helper: memcpy_from_msg()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 5 +++++
include/net/sctp/sm.h | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cbe4b2078b30..97dc5f8123b3 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2687,6 +2687,11 @@ int skb_ensure_writable(struct sk_buff *skb, int write_len);
int skb_vlan_pop(struct sk_buff *skb);
int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
+static inline int memcpy_from_msg(void *data, struct msghdr *msg, int len)
+{
+ return memcpy_fromiovec(data, msg->msg_iov, len);
+}
+
struct skb_checksum_ops {
__wsum (*update)(const void *mem, int len, __wsum wsum);
__wsum (*combine)(__wsum csum, __wsum csum2, int offset, int len);
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 72a31db47ded..487ef34bbd63 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -219,7 +219,7 @@ struct sctp_chunk *sctp_make_abort_no_data(const struct sctp_association *,
const struct sctp_chunk *,
__u32 tsn);
struct sctp_chunk *sctp_make_abort_user(const struct sctp_association *,
- const struct msghdr *, size_t msg_len);
+ struct msghdr *, size_t msg_len);
struct sctp_chunk *sctp_make_abort_violation(const struct sctp_association *,
const struct sctp_chunk *,
const __u8 *,
--
cgit v1.2.1
From e169371823827dae1fd1d15bceb0fe5497c1a5ba Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 6 Apr 2014 21:28:01 -0400
Subject: switch ipxrtr_route_packet() from iovec to msghdr
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/net/ipx.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/ipx.h b/include/net/ipx.h
index 320f47b64a7a..e5cff6811b30 100644
--- a/include/net/ipx.h
+++ b/include/net/ipx.h
@@ -150,7 +150,7 @@ int ipxrtr_add_route(__be32 network, struct ipx_interface *intrfc,
unsigned char *node);
void ipxrtr_del_routes(struct ipx_interface *intrfc);
int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
- struct iovec *iov, size_t len, int noblock);
+ struct msghdr *msg, size_t len, int noblock);
int ipxrtr_route_skb(struct sk_buff *skb);
struct ipx_route *ipxrtr_lookup(__be32 net);
int ipxrtr_ioctl(unsigned int cmd, void __user *arg);
--
cgit v1.2.1
From 7eab8d9e8a722ca07bc785f73e21c3d3418defa6 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 6 Apr 2014 21:51:23 -0400
Subject: new helper: memcpy_to_msg()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 97dc5f8123b3..d048347a010a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2692,6 +2692,11 @@ static inline int memcpy_from_msg(void *data, struct msghdr *msg, int len)
return memcpy_fromiovec(data, msg->msg_iov, len);
}
+static inline int memcpy_to_msg(struct msghdr *msg, void *data, int len)
+{
+ return memcpy_toiovec(msg->msg_iov, data, len);
+}
+
struct skb_checksum_ops {
__wsum (*update)(const void *mem, int len, __wsum wsum);
__wsum (*combine)(__wsum csum, __wsum csum2, int offset, int len);
--
cgit v1.2.1
From 3a654f975bf99165016fe257a3d2b4e6716e4931 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 19 Jun 2014 14:15:22 -0400
Subject: new helpers: skb_copy_datagram_from_iter() and
zerocopy_sg_from_iter()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d048347a010a..a01cd9ad0b51 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2659,10 +2659,13 @@ static inline int skb_copy_and_csum_datagram_msg(struct sk_buff *skb, int hlen,
int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
const struct iovec *from, int from_offset,
int len);
+int skb_copy_datagram_from_iter(struct sk_buff *skb, int offset,
+ struct iov_iter *from, int len);
int zerocopy_sg_from_iovec(struct sk_buff *skb, const struct iovec *frm,
int offset, size_t count);
int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
struct iov_iter *to, int size);
+int zerocopy_sg_from_iter(struct sk_buff *skb, struct iov_iter *frm);
void skb_free_datagram(struct sock *sk, struct sk_buff *skb);
void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb);
int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags);
--
cgit v1.2.1
From 195e952d03a797aa953f62ffe24ec58693e17ed8 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 6 Nov 2014 00:56:48 -0500
Subject: kill zerocopy_sg_from_iovec()
no users left
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a01cd9ad0b51..178cdbde82f0 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2661,8 +2661,6 @@ int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
int len);
int skb_copy_datagram_from_iter(struct sk_buff *skb, int offset,
struct iov_iter *from, int len);
-int zerocopy_sg_from_iovec(struct sk_buff *skb, const struct iovec *frm,
- int offset, size_t count);
int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
struct iov_iter *to, int size);
int zerocopy_sg_from_iter(struct sk_buff *skb, struct iov_iter *frm);
--
cgit v1.2.1
From 8feb2fb2bb986c533e18037d3c45a5f779421992 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 6 Nov 2014 01:10:59 -0500
Subject: switch AF_PACKET and AF_UNIX to skb_copy_datagram_from_iter()
... and kill skb_copy_datagram_iovec()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 178cdbde82f0..7691ad5b4771 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2656,9 +2656,6 @@ static inline int skb_copy_and_csum_datagram_msg(struct sk_buff *skb, int hlen,
{
return skb_copy_and_csum_datagram_iovec(skb, hlen, msg->msg_iov);
}
-int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
- const struct iovec *from, int from_offset,
- int len);
int skb_copy_datagram_from_iter(struct sk_buff *skb, int offset,
struct iov_iter *from, int len);
int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
--
cgit v1.2.1
From e0eb093e794452791b0f932a0120f410f614ad82 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 15 Nov 2014 01:11:23 -0500
Subject: switch sctp_user_addto_chunk() and sctp_datamsg_from_user() to
passing iov_iter
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/net/sctp/structs.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 806e3b5b3351..2bb2fcf5b11f 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -531,7 +531,7 @@ struct sctp_datamsg {
struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *,
struct sctp_sndrcvinfo *,
- struct msghdr *, int len);
+ struct iov_iter *);
void sctp_datamsg_free(struct sctp_datamsg *);
void sctp_datamsg_put(struct sctp_datamsg *);
void sctp_chunk_fail(struct sctp_chunk *, int error);
@@ -647,8 +647,8 @@ struct sctp_chunk {
void sctp_chunk_hold(struct sctp_chunk *);
void sctp_chunk_put(struct sctp_chunk *);
-int sctp_user_addto_chunk(struct sctp_chunk *chunk, int off, int len,
- struct iovec *data);
+int sctp_user_addto_chunk(struct sctp_chunk *chunk, int len,
+ struct iov_iter *from);
void sctp_chunk_free(struct sctp_chunk *);
void *sctp_addto_chunk(struct sctp_chunk *, int len, const void *data);
struct sctp_chunk *sctp_chunkify(struct sk_buff *,
--
cgit v1.2.1
From 0f7db23a07af5de22940f08c3f88a0741d4df0bc Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 20 Nov 2014 04:05:34 -0500
Subject: vmci_transport: switch ->enqeue_dgram, ->enqueue_stream and
->dequeue_stream to msghdr
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/net/af_vsock.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h
index 428277869400..0d87674fb775 100644
--- a/include/net/af_vsock.h
+++ b/include/net/af_vsock.h
@@ -103,14 +103,14 @@ struct vsock_transport {
int (*dgram_dequeue)(struct kiocb *kiocb, struct vsock_sock *vsk,
struct msghdr *msg, size_t len, int flags);
int (*dgram_enqueue)(struct vsock_sock *, struct sockaddr_vm *,
- struct iovec *, size_t len);
+ struct msghdr *, size_t len);
bool (*dgram_allow)(u32 cid, u32 port);
/* STREAM. */
/* TODO: stream_bind() */
- ssize_t (*stream_dequeue)(struct vsock_sock *, struct iovec *,
+ ssize_t (*stream_dequeue)(struct vsock_sock *, struct msghdr *,
size_t len, int flags);
- ssize_t (*stream_enqueue)(struct vsock_sock *, struct iovec *,
+ ssize_t (*stream_enqueue)(struct vsock_sock *, struct msghdr *,
size_t len);
s64 (*stream_has_data)(struct vsock_sock *);
s64 (*stream_has_space)(struct vsock_sock *);
--
cgit v1.2.1
From c40ecc12cfdb630332198a04e2832ae8218a61f1 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 13 Nov 2014 14:25:11 +0100
Subject: scsi: avoid ->change_queue_depth indirection for queue full tracking
All drivers use the implementation for ramping the queue up and down, so
instead of overloading the change_queue_depth method call the
implementation diretly if the driver opts into it by setting the
track_queue_depth flag in the host template.
Note that a few drivers validated the new queue depth in their
change_queue_depth method, but as we never go over the queue depth
set during slave_configure or the sysfs file this isn't nessecary
and can safely be removed.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
---
include/scsi/scsi_host.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 61a81bf77e28..a0b13a5cd25e 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -48,8 +48,6 @@ struct blk_queue_tags;
enum {
SCSI_QDEPTH_DEFAULT, /* default requested change, e.g. from sysfs */
- SCSI_QDEPTH_QFULL, /* scsi-ml requested due to queue full */
- SCSI_QDEPTH_RAMP_UP, /* scsi-ml requested due to threshold event */
};
struct scsi_host_template {
@@ -426,6 +424,11 @@ struct scsi_host_template {
*/
unsigned use_blk_tags:1;
+ /*
+ * Track QUEUE_FULL events and reduce queue depth on demand.
+ */
+ unsigned track_queue_depth:1;
+
/*
* This specifies the mode that a LLD supports.
*/
--
cgit v1.2.1
From db5ed4dfd5dd0142ec36ff7b335e0ec3b836b3e6 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 13 Nov 2014 15:08:42 +0100
Subject: scsi: drop reason argument from ->change_queue_depth
Drop the now unused reason argument from the ->change_queue_depth method.
Also add a return value to scsi_adjust_queue_depth, and rename it to
scsi_change_queue_depth now that it can be used as the default
->change_queue_depth implementation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/linux/libata.h | 4 ++--
include/scsi/libfc.h | 1 -
include/scsi/libiscsi.h | 2 --
include/scsi/libsas.h | 3 +--
include/scsi/scsi_device.h | 2 +-
include/scsi/scsi_host.h | 8 ++------
6 files changed, 6 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/libata.h b/include/linux/libata.h
index bd5fefeaf548..bfbc817c34ee 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1191,9 +1191,9 @@ extern void ata_scsi_unlock_native_capacity(struct scsi_device *sdev);
extern int ata_scsi_slave_config(struct scsi_device *sdev);
extern void ata_scsi_slave_destroy(struct scsi_device *sdev);
extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
- int queue_depth, int reason);
+ int queue_depth);
extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev,
- int queue_depth, int reason);
+ int queue_depth);
extern struct ata_device *ata_dev_pair(struct ata_device *adev);
extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap);
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 2e0cf568a9c1..93d14daf0994 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -1105,7 +1105,6 @@ int fc_eh_abort(struct scsi_cmnd *);
int fc_eh_device_reset(struct scsi_cmnd *);
int fc_eh_host_reset(struct scsi_cmnd *);
int fc_slave_alloc(struct scsi_device *);
-int fc_change_queue_depth(struct scsi_device *, int qdepth, int reason);
/*
* ELS/CT interface
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 728c9ad9feb0..4d1c46aac331 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -378,8 +378,6 @@ struct iscsi_host {
/*
* scsi host template
*/
-extern int iscsi_change_queue_depth(struct scsi_device *sdev, int depth,
- int reason);
extern int iscsi_eh_abort(struct scsi_cmnd *sc);
extern int iscsi_eh_recover_target(struct scsi_cmnd *sc);
extern int iscsi_eh_session_reset(struct scsi_cmnd *sc);
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index ef7872c20da9..1f8b33ec612f 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -704,8 +704,7 @@ int sas_queue_up(struct sas_task *task);
extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *);
extern int sas_target_alloc(struct scsi_target *);
extern int sas_slave_configure(struct scsi_device *);
-extern int sas_change_queue_depth(struct scsi_device *, int new_depth,
- int reason);
+extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
extern int sas_change_queue_type(struct scsi_device *, int qt);
extern int sas_bios_param(struct scsi_device *,
struct block_device *,
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 0aeaa003c3c1..6364e23454dd 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -380,7 +380,7 @@ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *,
#define __shost_for_each_device(sdev, shost) \
list_for_each_entry((sdev), &((shost)->__devices), siblings)
-extern void scsi_adjust_queue_depth(struct scsi_device *, int);
+extern int scsi_change_queue_depth(struct scsi_device *, int);
extern int scsi_track_queue_full(struct scsi_device *, int);
extern int scsi_set_medium_removal(struct scsi_device *, char);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index a0b13a5cd25e..c8a462ef9a4e 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -46,10 +46,6 @@ struct blk_queue_tags;
#define DISABLE_CLUSTERING 0
#define ENABLE_CLUSTERING 1
-enum {
- SCSI_QDEPTH_DEFAULT, /* default requested change, e.g. from sysfs */
-};
-
struct scsi_host_template {
struct module *module;
const char *name;
@@ -193,7 +189,7 @@ struct scsi_host_template {
* Things currently recommended to be handled at this time include:
*
* 1. Setting the device queue depth. Proper setting of this is
- * described in the comments for scsi_adjust_queue_depth.
+ * described in the comments for scsi_change_queue_depth.
* 2. Determining if the device supports the various synchronous
* negotiation protocols. The device struct will already have
* responded to INQUIRY and the results of the standard items
@@ -279,7 +275,7 @@ struct scsi_host_template {
*
* Status: OPTIONAL
*/
- int (* change_queue_depth)(struct scsi_device *, int, int);
+ int (* change_queue_depth)(struct scsi_device *, int);
/*
* Fill in this function to allow the changing of tag types
--
cgit v1.2.1
From 5d26a105b5a73e5635eae0629b42fa0a90e07b7b Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Thu, 20 Nov 2014 17:05:53 -0800
Subject: crypto: prefix module autoloading with "crypto-"
This prefixes all crypto module loading with "crypto-" so we never run
the risk of exposing module auto-loading to userspace via a crypto API,
as demonstrated by Mathias Krause:
https://lkml.org/lkml/2013/3/4/70
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/linux/crypto.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 208a63290b23..9c8776d0ada8 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -25,6 +25,19 @@
#include <linux/string.h>
#include <linux/uaccess.h>
+/*
+ * Autoloaded crypto modules should only use a prefixed name to avoid allowing
+ * arbitrary modules to be loaded. Loading from userspace may still need the
+ * unprefixed names, so retains those aliases as well.
+ * This uses __MODULE_INFO directly instead of MODULE_ALIAS because pre-4.3
+ * gcc (e.g. avr32 toolchain) uses __LINE__ for uniqueness, and this macro
+ * expands twice on the same line. Instead, use a separate base name for the
+ * alias.
+ */
+#define MODULE_ALIAS_CRYPTO(name) \
+ __MODULE_INFO(alias, alias_userspace, name); \
+ __MODULE_INFO(alias, alias_crypto, "crypto-" name)
+
/*
* Algorithm masks and types.
*/
--
cgit v1.2.1
From 394ffa503bc40e32d7f54a9b817264e81ce131b4 Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Mon, 24 Nov 2014 11:05:22 +0800
Subject: blk: introduce generic io stat accounting help function
Many block drivers accounting io stat based on bio (e.g. NVMe...),
the blk_account_io_start/end() which is based on request
does not make sense to them, so here we introduce the similar help
function named generic_start/end_io_acct base on raw sectors, and it can
simplify some driver's open io accounting code.
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
include/linux/bio.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 7347f486ceca..efead0b532c4 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -443,6 +443,11 @@ extern struct bio *bio_copy_kern(struct request_queue *, void *, unsigned int,
extern void bio_set_pages_dirty(struct bio *bio);
extern void bio_check_pages_dirty(struct bio *bio);
+void generic_start_io_acct(int rw, unsigned long sectors,
+ struct hd_struct *part);
+void generic_end_io_acct(int rw, struct hd_struct *part,
+ unsigned long start_time);
+
#ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
# error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
#endif
--
cgit v1.2.1
From a1c8a5512b7cddc81767172f0de37b155cea039f Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Date: Mon, 24 Nov 2014 14:10:52 +0000
Subject: regulator: core: Add PRE_DISABLE notification
Add a PRE_DISABLE notification so that consumers can use a
notifier to run any steps required to prepare for the
regulator being switched off. Since the regulator disable
can fail an abort notification is also added.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/regulator/consumer.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index d347c805f923..9efddd2a63ee 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -99,6 +99,8 @@ struct regmap;
* Data passed is "struct pre_voltage_change_data"
* ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason.
* Data passed is old voltage cast to (void *).
+ * PRE_DISABLE Regulator is about to be disabled
+ * ABORT_DISABLE Regulator disable failed for some reason
*
* NOTE: These events can be OR'ed together when passed into handler.
*/
@@ -113,6 +115,8 @@ struct regmap;
#define REGULATOR_EVENT_DISABLE 0x80
#define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE 0x100
#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200
+#define REGULATOR_EVENT_PRE_DISABLE 0x400
+#define REGULATOR_EVENT_ABORT_DISABLE 0x800
/**
* struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event
--
cgit v1.2.1
From c9eab58f6466cef3d9cd760a96e4de5e060e5195 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 24 Nov 2014 15:27:17 +0100
Subject: KVM: x86: move device assignment out of kvm_host.h
Create a new header, and hide the device assignment functions there.
Move struct kvm_assigned_dev_kernel to assigned-dev.c by modifying
arch/x86/kvm/iommu.c to take a PCI device struct.
Based on a patch by Radim Krcmar <rkrcmark@redhat.com>.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 29 -----------------------------
1 file changed, 29 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index aa56894ce839..231dd9472226 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -718,31 +718,6 @@ struct kvm_irq_ack_notifier {
void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
};
-struct kvm_assigned_dev_kernel {
- struct kvm_irq_ack_notifier ack_notifier;
- struct list_head list;
- int assigned_dev_id;
- int host_segnr;
- int host_busnr;
- int host_devfn;
- unsigned int entries_nr;
- int host_irq;
- bool host_irq_disabled;
- bool pci_2_3;
- struct msix_entry *host_msix_entries;
- int guest_irq;
- struct msix_entry *guest_msix_entries;
- unsigned long irq_requested_type;
- int irq_source_id;
- int flags;
- struct pci_dev *dev;
- struct kvm *kvm;
- spinlock_t intx_lock;
- spinlock_t intx_mask_lock;
- char irq_name[32];
- struct pci_saved_state *pci_saved_state;
-};
-
int kvm_irq_map_gsi(struct kvm *kvm,
struct kvm_kernel_irq_routing_entry *entries, int gsi);
int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin);
@@ -764,10 +739,6 @@ void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
-int kvm_assign_device(struct kvm *kvm,
- struct kvm_assigned_dev_kernel *assigned_dev);
-int kvm_deassign_device(struct kvm *kvm,
- struct kvm_assigned_dev_kernel *assigned_dev);
#else
static inline int kvm_iommu_map_pages(struct kvm *kvm,
struct kvm_memory_slot *slot)
--
cgit v1.2.1
From 860a0d9e511f278bedab62d555a457c18e0841d5 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Tue, 28 Oct 2014 14:24:12 -0400
Subject: sunrpc: add some tracepoints in svc_rqst handling functions
...just around svc_send, svc_recv and svc_process for now.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/trace/events/sunrpc.h | 55 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 1fef3e6e9436..6260f5134212 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -6,6 +6,7 @@
#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/svc.h>
#include <net/tcp_states.h>
#include <linux/net.h>
#include <linux/tracepoint.h>
@@ -306,6 +307,60 @@ DEFINE_RPC_SOCKET_EVENT_DONE(rpc_socket_reset_connection);
DEFINE_RPC_SOCKET_EVENT(rpc_socket_close);
DEFINE_RPC_SOCKET_EVENT(rpc_socket_shutdown);
+TRACE_EVENT(svc_recv,
+ TP_PROTO(struct svc_rqst *rqst, int status),
+
+ TP_ARGS(rqst, status),
+
+ TP_STRUCT__entry(
+ __field(struct sockaddr *, addr)
+ __field(__be32, xid)
+ __field(int, status)
+ ),
+
+ TP_fast_assign(
+ __entry->addr = (struct sockaddr *)&rqst->rq_addr;
+ __entry->xid = status > 0 ? rqst->rq_xid : 0;
+ __entry->status = status;
+ ),
+
+ TP_printk("addr=%pIScp xid=0x%x status=%d", __entry->addr,
+ be32_to_cpu(__entry->xid), __entry->status)
+);
+
+DECLARE_EVENT_CLASS(svc_rqst_status,
+
+ TP_PROTO(struct svc_rqst *rqst, int status),
+
+ TP_ARGS(rqst, status),
+
+ TP_STRUCT__entry(
+ __field(struct sockaddr *, addr)
+ __field(__be32, xid)
+ __field(int, dropme)
+ __field(int, status)
+ ),
+
+ TP_fast_assign(
+ __entry->addr = (struct sockaddr *)&rqst->rq_addr;
+ __entry->xid = rqst->rq_xid;
+ __entry->dropme = (int)rqst->rq_dropme;
+ __entry->status = status;
+ ),
+
+ TP_printk("addr=%pIScp rq_xid=0x%x dropme=%d status=%d",
+ __entry->addr, be32_to_cpu(__entry->xid), __entry->dropme,
+ __entry->status)
+);
+
+DEFINE_EVENT(svc_rqst_status, svc_process,
+ TP_PROTO(struct svc_rqst *rqst, int status),
+ TP_ARGS(rqst, status));
+
+DEFINE_EVENT(svc_rqst_status, svc_send,
+ TP_PROTO(struct svc_rqst *rqst, int status),
+ TP_ARGS(rqst, status));
+
#endif /* _TRACE_SUNRPC_H */
#include <trace/define_trace.h>
--
cgit v1.2.1
From 3705ad64f123271b2b88dbff0c9891b7b90299d2 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Tue, 28 Oct 2014 14:24:13 -0400
Subject: sunrpc: add new tracepoints in xprt handling code
...so we can keep track of when calls are sent and replies received.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/trace/events/sunrpc.h | 63 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 6260f5134212..5edb16bcd836 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -307,6 +307,69 @@ DEFINE_RPC_SOCKET_EVENT_DONE(rpc_socket_reset_connection);
DEFINE_RPC_SOCKET_EVENT(rpc_socket_close);
DEFINE_RPC_SOCKET_EVENT(rpc_socket_shutdown);
+DECLARE_EVENT_CLASS(rpc_xprt_event,
+ TP_PROTO(struct rpc_xprt *xprt, __be32 xid, int status),
+
+ TP_ARGS(xprt, xid, status),
+
+ TP_STRUCT__entry(
+ __field(__be32, xid)
+ __field(int, status)
+ __string(addr, xprt->address_strings[RPC_DISPLAY_ADDR])
+ __string(port, xprt->address_strings[RPC_DISPLAY_PORT])
+ ),
+
+ TP_fast_assign(
+ __entry->xid = xid;
+ __entry->status = status;
+ __assign_str(addr, xprt->address_strings[RPC_DISPLAY_ADDR]);
+ __assign_str(port, xprt->address_strings[RPC_DISPLAY_PORT]);
+ ),
+
+ TP_printk("peer=%s/%s xid=0x%x status=%d", __get_str(addr),
+ __get_str(port), be32_to_cpu(__entry->xid),
+ __entry->status)
+);
+
+DEFINE_EVENT(rpc_xprt_event, xprt_lookup_rqst,
+ TP_PROTO(struct rpc_xprt *xprt, __be32 xid, int status),
+ TP_ARGS(xprt, xid, status));
+
+DEFINE_EVENT(rpc_xprt_event, xprt_transmit,
+ TP_PROTO(struct rpc_xprt *xprt, __be32 xid, int status),
+ TP_ARGS(xprt, xid, status));
+
+DEFINE_EVENT(rpc_xprt_event, xprt_complete_rqst,
+ TP_PROTO(struct rpc_xprt *xprt, __be32 xid, int status),
+ TP_ARGS(xprt, xid, status));
+
+TRACE_EVENT(xs_tcp_data_ready,
+ TP_PROTO(struct rpc_xprt *xprt, int err, unsigned int total),
+
+ TP_ARGS(xprt, err, total),
+
+ TP_STRUCT__entry(
+ __field(int, err)
+ __field(unsigned int, total)
+ __string(addr, xprt ? xprt->address_strings[RPC_DISPLAY_ADDR] :
+ "(null)")
+ __string(port, xprt ? xprt->address_strings[RPC_DISPLAY_PORT] :
+ "(null)")
+ ),
+
+ TP_fast_assign(
+ __entry->err = err;
+ __entry->total = total;
+ __assign_str(addr, xprt ?
+ xprt->address_strings[RPC_DISPLAY_ADDR] : "(null)");
+ __assign_str(port, xprt ?
+ xprt->address_strings[RPC_DISPLAY_PORT] : "(null)");
+ ),
+
+ TP_printk("peer=[%s]:%s err=%d total=%u", __get_str(addr),
+ __get_str(port), __entry->err, __entry->total)
+);
+
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
--
cgit v1.2.1
From 1a867a0898b2e366a1eb5b7fe21413a2b2b1629f Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Tue, 28 Oct 2014 14:24:14 -0400
Subject: sunrpc: add tracepoints in xs_tcp_data_recv
Add tracepoints inside the main loop on xs_tcp_data_recv that allow
us to keep an eye on what's happening during each phase of it.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/sunrpc/xprtsock.h | 59 +++++++++++++++++++++++++++++++++++++++++
include/trace/events/sunrpc.h | 44 +++++++++++++++++++++++++++++-
2 files changed, 102 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
index 1ad36cc25b2e..7591788e9fbf 100644
--- a/include/linux/sunrpc/xprtsock.h
+++ b/include/linux/sunrpc/xprtsock.h
@@ -17,6 +17,65 @@ void cleanup_socket_xprt(void);
#define RPC_DEF_MIN_RESVPORT (665U)
#define RPC_DEF_MAX_RESVPORT (1023U)
+struct sock_xprt {
+ struct rpc_xprt xprt;
+
+ /*
+ * Network layer
+ */
+ struct socket * sock;
+ struct sock * inet;
+
+ /*
+ * State of TCP reply receive
+ */
+ __be32 tcp_fraghdr,
+ tcp_xid,
+ tcp_calldir;
+
+ u32 tcp_offset,
+ tcp_reclen;
+
+ unsigned long tcp_copied,
+ tcp_flags;
+
+ /*
+ * Connection of transports
+ */
+ struct delayed_work connect_worker;
+ struct sockaddr_storage srcaddr;
+ unsigned short srcport;
+
+ /*
+ * UDP socket buffer size parameters
+ */
+ size_t rcvsize,
+ sndsize;
+
+ /*
+ * Saved socket callback addresses
+ */
+ void (*old_data_ready)(struct sock *);
+ void (*old_state_change)(struct sock *);
+ void (*old_write_space)(struct sock *);
+ void (*old_error_report)(struct sock *);
+};
+
+/*
+ * TCP receive state flags
+ */
+#define TCP_RCV_LAST_FRAG (1UL << 0)
+#define TCP_RCV_COPY_FRAGHDR (1UL << 1)
+#define TCP_RCV_COPY_XID (1UL << 2)
+#define TCP_RCV_COPY_DATA (1UL << 3)
+#define TCP_RCV_READ_CALLDIR (1UL << 4)
+#define TCP_RCV_COPY_CALLDIR (1UL << 5)
+
+/*
+ * TCP RPC flags
+ */
+#define TCP_RPC_REPLY (1UL << 6)
+
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_XPRTSOCK_H */
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 5edb16bcd836..171ca4ff6d99 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -7,6 +7,7 @@
#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/xprtsock.h>
#include <net/tcp_states.h>
#include <linux/net.h>
#include <linux/tracepoint.h>
@@ -326,7 +327,7 @@ DECLARE_EVENT_CLASS(rpc_xprt_event,
__assign_str(port, xprt->address_strings[RPC_DISPLAY_PORT]);
),
- TP_printk("peer=%s/%s xid=0x%x status=%d", __get_str(addr),
+ TP_printk("peer=[%s]:%s xid=0x%x status=%d", __get_str(addr),
__get_str(port), be32_to_cpu(__entry->xid),
__entry->status)
);
@@ -370,6 +371,47 @@ TRACE_EVENT(xs_tcp_data_ready,
__get_str(port), __entry->err, __entry->total)
);
+#define rpc_show_sock_xprt_flags(flags) \
+ __print_flags(flags, "|", \
+ { TCP_RCV_LAST_FRAG, "TCP_RCV_LAST_FRAG" }, \
+ { TCP_RCV_COPY_FRAGHDR, "TCP_RCV_COPY_FRAGHDR" }, \
+ { TCP_RCV_COPY_XID, "TCP_RCV_COPY_XID" }, \
+ { TCP_RCV_COPY_DATA, "TCP_RCV_COPY_DATA" }, \
+ { TCP_RCV_READ_CALLDIR, "TCP_RCV_READ_CALLDIR" }, \
+ { TCP_RCV_COPY_CALLDIR, "TCP_RCV_COPY_CALLDIR" }, \
+ { TCP_RPC_REPLY, "TCP_RPC_REPLY" })
+
+TRACE_EVENT(xs_tcp_data_recv,
+ TP_PROTO(struct sock_xprt *xs),
+
+ TP_ARGS(xs),
+
+ TP_STRUCT__entry(
+ __string(addr, xs->xprt.address_strings[RPC_DISPLAY_ADDR])
+ __string(port, xs->xprt.address_strings[RPC_DISPLAY_PORT])
+ __field(__be32, xid)
+ __field(unsigned long, flags)
+ __field(unsigned long, copied)
+ __field(unsigned int, reclen)
+ __field(unsigned long, offset)
+ ),
+
+ TP_fast_assign(
+ __assign_str(addr, xs->xprt.address_strings[RPC_DISPLAY_ADDR]);
+ __assign_str(port, xs->xprt.address_strings[RPC_DISPLAY_PORT]);
+ __entry->xid = xs->tcp_xid;
+ __entry->flags = xs->tcp_flags;
+ __entry->copied = xs->tcp_copied;
+ __entry->reclen = xs->tcp_reclen;
+ __entry->offset = xs->tcp_offset;
+ ),
+
+ TP_printk("peer=[%s]:%s xid=0x%x flags=%s copied=%lu reclen=%u offset=%lu",
+ __get_str(addr), __get_str(port), be32_to_cpu(__entry->xid),
+ rpc_show_sock_xprt_flags(__entry->flags),
+ __entry->copied, __entry->reclen, __entry->offset)
+);
+
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
--
cgit v1.2.1
From a6e4599f8d232b5911c46bb16f5a79b86f3dfb75 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 23 Nov 2014 15:04:12 +0100
Subject: ASoC: uda134x: Remove is_powered_on_standby from platform data
According to its documentation the is_powered_on_standby field of the
uda134x platform data is supposed to prevent the the driver from shutting
down the ADC and DAC in standby mode. This behavior was broken in commit
commit f0fba2ad1b6b ("ASoC: multi-component - ASoC Multi-Component Support")
almost 5 years ago and all the flag does now is cause the driver to go to
SND_SOC_BIAS_ON in probe, just for the ASoC core to put it back into
SND_SOC_BIAS_STANDBY right after probe.
Apparently the intended behavior has not been missed, so just remove
is_powered_on_standby from the platform data struct.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/uda134x.h | 12 ------------
1 file changed, 12 deletions(-)
(limited to 'include')
diff --git a/include/sound/uda134x.h b/include/sound/uda134x.h
index e475659bd3be..509efb050176 100644
--- a/include/sound/uda134x.h
+++ b/include/sound/uda134x.h
@@ -18,18 +18,6 @@ struct uda134x_platform_data {
struct l3_pins l3;
void (*power) (int);
int model;
- /*
- ALSA SOC usually puts the device in standby mode when it's not used
- for sometime. If you unset is_powered_on_standby the driver will
- turn off the ADC/DAC when this callback is invoked and turn it back
- on when needed. Unfortunately this will result in a very light bump
- (it can be audible only with good earphones). If this bothers you
- set is_powered_on_standby, you will have slightly higher power
- consumption. Please note that sending the L3 command for ADC is
- enough to make the bump, so it doesn't make difference if you
- completely take off power from the codec.
- */
- int is_powered_on_standby;
#define UDA134X_UDA1340 1
#define UDA134X_UDA1341 2
#define UDA134X_UDA1344 3
--
cgit v1.2.1
From b671358ad7916beb7ca9e5c304ae88afc7da4557 Mon Sep 17 00:00:00 2001
From: Beniamino Galvani <b.galvani@gmail.com>
Date: Sat, 22 Nov 2014 16:21:39 +0100
Subject: spi: core: Add spi_transfer_is_last() helper
This adds the function spi_transfer_is_last() which can be used by
drivers to know whether a given transfer is the last one in the
current message.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/spi/spi.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 46d188a9947c..a6ef2a8e6de4 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -1049,4 +1049,10 @@ spi_unregister_device(struct spi_device *spi)
extern const struct spi_device_id *
spi_get_device_id(const struct spi_device *sdev);
+static inline bool
+spi_transfer_is_last(struct spi_master *master, struct spi_transfer *xfer)
+{
+ return list_is_last(&xfer->transfer_list, &master->cur_msg->transfers);
+}
+
#endif /* __LINUX_SPI_H */
--
cgit v1.2.1
From 3c356bde19e9a728b26a231a23099c8057dbe881 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 5 Sep 2014 18:20:23 -0700
Subject: scsi: stop passing a gfp_mask argument down the command setup path
There is no reason for ULDs to pass in a flag on how to allocate the S/G
lists. While we don't need GFP_ATOMIC for the blk-mq case because we
don't hold locks, that decision can be made way down the chain without
having to pass a pointless gfp_mask argument.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_cmnd.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index e119142e565e..9fc1aecfc813 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -163,7 +163,7 @@ extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
size_t *offset, size_t *len);
extern void scsi_kunmap_atomic_sg(void *virt);
-extern int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask);
+extern int scsi_init_io(struct scsi_cmnd *cmd);
extern int scsi_dma_map(struct scsi_cmnd *cmd);
extern void scsi_dma_unmap(struct scsi_cmnd *cmd);
--
cgit v1.2.1
From 3af6b35261182ff185db1f0fd271254147e2663e Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 12 Nov 2014 18:34:51 +0100
Subject: scsi: remove scsi_driver owner field
The driver core driver structure has grown an owner field and now
requires it to be set for all modular drivers. Set it up for
all scsi_driver instances and get rid of the now superflous
scsi_driver owner field.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Shane M Seymour <shane.seymour@hp.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_driver.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h
index c2b759809d8a..891a658aa867 100644
--- a/include/scsi/scsi_driver.h
+++ b/include/scsi/scsi_driver.h
@@ -9,7 +9,6 @@ struct scsi_cmnd;
struct scsi_device;
struct scsi_driver {
- struct module *owner;
struct device_driver gendrv;
void (*rescan)(struct device *);
--
cgit v1.2.1
From eb846d9f147455e4e5e1863bfb5e31974bb69b7c Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Mon, 17 Nov 2014 14:25:19 +0100
Subject: scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16
SPC-3 defines SERVICE ACTION IN(12) and SERVICE ACTION IN(16).
So rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 to be
consistent with SPC and to allow for better distinction.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi.h | 2 +-
include/trace/events/scsi.h | 2 +-
include/trace/events/target.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index d17178e6fcdd..b354c0de324e 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -151,7 +151,7 @@ enum scsi_timeouts {
#define VERIFY_16 0x8f
#define SYNCHRONIZE_CACHE_16 0x91
#define WRITE_SAME_16 0x93
-#define SERVICE_ACTION_IN 0x9e
+#define SERVICE_ACTION_IN_16 0x9e
/* values for service action in */
#define SAI_READ_CAPACITY_16 0x10
#define SAI_GET_LBA_STATUS 0x12
diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h
index db6c93510f74..079bd10a01b4 100644
--- a/include/trace/events/scsi.h
+++ b/include/trace/events/scsi.h
@@ -94,7 +94,7 @@
scsi_opcode_name(WRITE_16), \
scsi_opcode_name(VERIFY_16), \
scsi_opcode_name(WRITE_SAME_16), \
- scsi_opcode_name(SERVICE_ACTION_IN), \
+ scsi_opcode_name(SERVICE_ACTION_IN_16), \
scsi_opcode_name(SAI_READ_CAPACITY_16), \
scsi_opcode_name(SAI_GET_LBA_STATUS), \
scsi_opcode_name(MI_REPORT_TARGET_PGS), \
diff --git a/include/trace/events/target.h b/include/trace/events/target.h
index da9cc0f05c93..45403443dd82 100644
--- a/include/trace/events/target.h
+++ b/include/trace/events/target.h
@@ -96,7 +96,7 @@
scsi_opcode_name(WRITE_16), \
scsi_opcode_name(VERIFY_16), \
scsi_opcode_name(WRITE_SAME_16), \
- scsi_opcode_name(SERVICE_ACTION_IN), \
+ scsi_opcode_name(SERVICE_ACTION_IN_16), \
scsi_opcode_name(SAI_READ_CAPACITY_16), \
scsi_opcode_name(SAI_GET_LBA_STATUS), \
scsi_opcode_name(MI_REPORT_TARGET_PGS), \
--
cgit v1.2.1
From 85686f696d81a4bcfa5e51ee9ee2b6aae5531c6f Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Mon, 17 Nov 2014 14:25:20 +0100
Subject: scsi: add SPC-3 command definitions
SPC-3 defines SERVICE ACTION IN(12), SERVICE_ACTION OUT(12),
SERVICE ACTION OUT(16), and SERVICE ACTION BIDIRECTIONAL.
And READ MEDIA SERIAL NUMBER has long since been deprecated.
So update callers to refer to the new cdb name.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi.h | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index b354c0de324e..8a7f8ad58aac 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -128,8 +128,10 @@ enum scsi_timeouts {
#define MOVE_MEDIUM 0xa5
#define EXCHANGE_MEDIUM 0xa6
#define READ_12 0xa8
+#define SERVICE_ACTION_OUT_12 0xa9
#define WRITE_12 0xaa
-#define READ_MEDIA_SERIAL_NUMBER 0xab
+#define READ_MEDIA_SERIAL_NUMBER 0xab /* Obsolete with SPC-2 */
+#define SERVICE_ACTION_IN_12 0xab
#define WRITE_VERIFY_12 0xae
#define VERIFY_12 0xaf
#define SEARCH_HIGH_12 0xb0
@@ -151,7 +153,9 @@ enum scsi_timeouts {
#define VERIFY_16 0x8f
#define SYNCHRONIZE_CACHE_16 0x91
#define WRITE_SAME_16 0x93
+#define SERVICE_ACTION_BIDIRECTIONAL 0x9d
#define SERVICE_ACTION_IN_16 0x9e
+#define SERVICE_ACTION_OUT_16 0x9f
/* values for service action in */
#define SAI_READ_CAPACITY_16 0x10
#define SAI_GET_LBA_STATUS 0x12
@@ -165,8 +169,8 @@ enum scsi_timeouts {
#define MI_REPORT_ALIASES 0x0b
#define MI_REPORT_SUPPORTED_OPERATION_CODES 0x0c
#define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0x0d
-#define MI_REPORT_PRIORITY 0x0e
-#define MI_REPORT_TIMESTAMP 0x0f
+#define MI_REPORT_PRIORITY 0x0e
+#define MI_REPORT_TIMESTAMP 0x0f
#define MI_MANAGEMENT_PROTOCOL_IN 0x10
/* value for MI_REPORT_TARGET_PGS ext header */
#define MI_EXT_HDR_PARAM_FMT 0x20
--
cgit v1.2.1
From 2ad7bf3638411cb547f2823df08166c13ab04269 Mon Sep 17 00:00:00 2001
From: Mahesh Bandewar <maheshb@google.com>
Date: Sun, 23 Nov 2014 23:07:46 -0800
Subject: ipvlan: Initial check-in of the IPVLAN driver.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This driver is very similar to the macvlan driver except that it
uses L3 on the frame to determine the logical interface while
functioning as packet dispatcher. It inherits L2 of the master
device hence the packets on wire will have the same L2 for all
the packets originating from all virtual devices off of the same
master device.
This driver was developed keeping the namespace use-case in
mind. Hence most of the examples given here take that as the
base setup where main-device belongs to the default-ns and
virtual devices are assigned to the additional namespaces.
The device operates in two different modes and the difference
in these two modes in primarily in the TX side.
(a) L2 mode : In this mode, the device behaves as a L2 device.
TX processing upto L2 happens on the stack of the virtual device
associated with (namespace). Packets are switched after that
into the main device (default-ns) and queued for xmit.
RX processing is simple and all multicast, broadcast (if
applicable), and unicast belonging to the address(es) are
delivered to the virtual devices.
(b) L3 mode : In this mode, the device behaves like a L3 device.
TX processing upto L3 happens on the stack of the virtual device
associated with (namespace). Packets are switched to the
main-device (default-ns) for the L2 processing. Hence the routing
table of the default-ns will be used in this mode.
RX processins is somewhat similar to the L2 mode except that in
this mode only Unicast packets are delivered to the virtual device
while main-dev will handle all other packets.
The devices can be added using the "ip" command from the iproute2
package -
ip link add link <master> <virtual> type ipvlan mode [ l2 | l3 ]
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Laurent Chavey <chavey@google.com>
Cc: Tim Hockin <thockin@google.com>
Cc: Brandon Philips <brandon.philips@coreos.com>
Cc: Pavel Emelianov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 4 ++++
include/uapi/linux/if_link.h | 15 +++++++++++++++
2 files changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5cd508787572..2cb772495f7a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1230,6 +1230,8 @@ enum netdev_priv_flags {
IFF_LIVE_ADDR_CHANGE = 1<<20,
IFF_MACVLAN = 1<<21,
IFF_XMIT_DST_RELEASE_PERM = 1<<22,
+ IFF_IPVLAN_MASTER = 1<<23,
+ IFF_IPVLAN_SLAVE = 1<<24,
};
#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
@@ -1255,6 +1257,8 @@ enum netdev_priv_flags {
#define IFF_LIVE_ADDR_CHANGE IFF_LIVE_ADDR_CHANGE
#define IFF_MACVLAN IFF_MACVLAN
#define IFF_XMIT_DST_RELEASE_PERM IFF_XMIT_DST_RELEASE_PERM
+#define IFF_IPVLAN_MASTER IFF_IPVLAN_MASTER
+#define IFF_IPVLAN_SLAVE IFF_IPVLAN_SLAVE
/**
* struct net_device - The DEVICE structure.
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 7072d8325016..36bddc233633 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -330,6 +330,21 @@ enum macvlan_macaddr_mode {
#define MACVLAN_FLAG_NOPROMISC 1
+/* IPVLAN section */
+enum {
+ IFLA_IPVLAN_UNSPEC,
+ IFLA_IPVLAN_MODE,
+ __IFLA_IPVLAN_MAX
+};
+
+#define IFLA_IPVLAN_MAX (__IFLA_IPVLAN_MAX - 1)
+
+enum ipvlan_mode {
+ IPVLAN_MODE_L2 = 0,
+ IPVLAN_MODE_L3,
+ IPVLAN_MODE_MAX
+};
+
/* VXLAN section */
enum {
IFLA_VXLAN_UNSPEC,
--
cgit v1.2.1
From 08dcf9fd194cf19d3b282a81cc3539202e768ca4 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Mon, 24 Nov 2014 11:30:26 +0100
Subject: tc_vlan: fix type of tcfv_push_vid
Should be u16. So fix it to kill the sparse warning.
Fixes: c7e2b9689ef8136 "sched: introduce vlan action"
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/tc_act/tc_vlan.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/tc_act/tc_vlan.h b/include/net/tc_act/tc_vlan.h
index c809c1d2cea5..93b70ade1ff3 100644
--- a/include/net/tc_act/tc_vlan.h
+++ b/include/net/tc_act/tc_vlan.h
@@ -18,7 +18,7 @@
struct tcf_vlan {
struct tcf_common common;
int tcfv_action;
- __be16 tcfv_push_vid;
+ u16 tcfv_push_vid;
__be16 tcfv_push_proto;
};
#define to_vlan(a) \
--
cgit v1.2.1
From 4f0372150b1fbf2167cfe21d2e6eac1933fb36ac Mon Sep 17 00:00:00 2001
From: Richard Alpe <richard.alpe@ericsson.com>
Date: Mon, 24 Nov 2014 14:24:54 +0100
Subject: tipc: add tipc_netlink.h to uapi Kbuild
tipc_netlink.h is the user-space header for the new netlink api. It
was accidentally left out of the uapi Kbuild list when the api was
added.
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/Kbuild | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 72298b6887ac..a1e8175cc488 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -389,6 +389,7 @@ header-y += times.h
header-y += timex.h
header-y += tiocl.h
header-y += tipc_config.h
+header-y += tipc_netlink.h
header-y += tipc.h
header-y += toshiba.h
header-y += tty_flags.h
--
cgit v1.2.1
From cb1410c71e0b6b2eba8c1890645a76ff86169d24 Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@primarydata.com>
Date: Wed, 12 Nov 2014 12:08:00 -0500
Subject: NFS: fix subtle change in COMMIT behavior
Recent work in the pgio layer made it possible for there to be more than one
request per page. This caused a subtle change in commit behavior, because
write.c:nfs_commit_unstable_pages compares the number of *pages* waiting for
writeback against the number of requests on a commit list to choose when to
send a COMMIT in a non-blocking flush.
This is probably hard to hit in normal operation - you have to be using
rsize/wsize < PAGE_SIZE, or pnfs with lots of boundaries that are not page
aligned to have a noticeable change in behavior.
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs_fs.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index c72d1ad41ad4..6d627b92df53 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -163,7 +163,7 @@ struct nfs_inode {
*/
__be32 cookieverf[2];
- unsigned long npages;
+ unsigned long nrequests;
struct nfs_mds_commit_info commit_info;
/* Open contexts for shared mmap writes */
@@ -520,7 +520,7 @@ extern void nfs_commit_free(struct nfs_commit_data *data);
static inline int
nfs_have_writebacks(struct inode *inode)
{
- return NFS_I(inode)->npages != 0;
+ return NFS_I(inode)->nrequests != 0;
}
/*
--
cgit v1.2.1
From 10b89567db51e143c2f0828839332502916d012d Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Mon, 17 Nov 2014 16:58:03 -0500
Subject: lockd: eliminate LOCKD_DEBUG
LOCKD_DEBUG is always the same value as CONFIG_SUNRPC_DEBUG, so we can
just use it instead.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/lockd/debug.h | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/lockd/debug.h b/include/linux/lockd/debug.h
index 257d3779f2ab..0ca8109934e4 100644
--- a/include/linux/lockd/debug.h
+++ b/include/linux/lockd/debug.h
@@ -17,12 +17,8 @@
* Enable lockd debugging.
* Requires RPC_DEBUG.
*/
-#ifdef RPC_DEBUG
-# define LOCKD_DEBUG 1
-#endif
-
#undef ifdebug
-#if defined(RPC_DEBUG) && defined(LOCKD_DEBUG)
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
# define ifdebug(flag) if (unlikely(nlm_debug & NLMDBG_##flag))
#else
# define ifdebug(flag) if (0)
--
cgit v1.2.1
From b53a2340d0d30468b7315992ba77fe188c3bc5c8 Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Date: Tue, 28 Oct 2014 22:33:53 +0200
Subject: of/reconfig: Add of_reconfig_get_state_change() of notifier helper.
Introduce of_reconfig_get_state_change() which allows an of notifier
to query about device state changes.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 27635c89d8c2..8e3a264c869c 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -327,6 +327,7 @@ struct of_prop_reconfig {
extern int of_reconfig_notifier_register(struct notifier_block *);
extern int of_reconfig_notifier_unregister(struct notifier_block *);
extern int of_reconfig_notify(unsigned long, void *);
+extern int of_reconfig_get_state_change(unsigned long action, void *arg);
extern int of_attach_node(struct device_node *);
extern int of_detach_node(struct device_node *);
@@ -887,6 +888,12 @@ struct of_changeset {
struct list_head entries;
};
+enum of_reconfig_change {
+ OF_RECONFIG_NO_CHANGE = 0,
+ OF_RECONFIG_CHANGE_ADD,
+ OF_RECONFIG_CHANGE_REMOVE,
+};
+
#ifdef CONFIG_OF_DYNAMIC
extern void of_changeset_init(struct of_changeset *ocs);
extern void of_changeset_destroy(struct of_changeset *ocs);
--
cgit v1.2.1
From f6892d193fb9d694a1b50550649ba6e82f8abec1 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Fri, 21 Nov 2014 15:14:58 +0000
Subject: of/reconfig: Add empty stubs for the of_reconfig methods
To simplify subsystem setup code, make empty stubs for the
of_reconfig_*() methods. This is particularly useful for registering and
unregistering the notifiers so that it doesn't impact the flow of the
subsystem setup code.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of.h | 29 +++++++++++++++++++++++------
1 file changed, 23 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 8e3a264c869c..b59ee21933a4 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -324,11 +324,6 @@ struct of_prop_reconfig {
struct property *old_prop;
};
-extern int of_reconfig_notifier_register(struct notifier_block *);
-extern int of_reconfig_notifier_unregister(struct notifier_block *);
-extern int of_reconfig_notify(unsigned long, void *);
-extern int of_reconfig_get_state_change(unsigned long action, void *arg);
-
extern int of_attach_node(struct device_node *);
extern int of_detach_node(struct device_node *);
@@ -895,6 +890,11 @@ enum of_reconfig_change {
};
#ifdef CONFIG_OF_DYNAMIC
+extern int of_reconfig_notifier_register(struct notifier_block *);
+extern int of_reconfig_notifier_unregister(struct notifier_block *);
+extern int of_reconfig_notify(unsigned long, void *);
+extern int of_reconfig_get_state_change(unsigned long action, void *arg);
+
extern void of_changeset_init(struct of_changeset *ocs);
extern void of_changeset_destroy(struct of_changeset *ocs);
extern int of_changeset_apply(struct of_changeset *ocs);
@@ -932,7 +932,24 @@ static inline int of_changeset_update_property(struct of_changeset *ocs,
{
return of_changeset_action(ocs, OF_RECONFIG_UPDATE_PROPERTY, np, prop);
}
-#endif
+#else /* CONFIG_OF_DYNAMIC */
+static inline int of_reconfig_notifier_register(struct notifier_block *nb)
+{
+ return -EINVAL;
+}
+static inline int of_reconfig_notifier_unregister(struct notifier_block *nb)
+{
+ return -EINVAL;
+}
+static inline int of_reconfig_notify(unsigned long action, void *arg)
+{
+ return -EINVAL;
+}
+static inline int of_reconfig_get_state_change(unsigned long action, void *arg)
+{
+ return -EINVAL;
+}
+#endif /* CONFIG_OF_DYNAMIC */
/* CONFIG_OF_RESOLVE api */
extern int of_resolve_phandles(struct device_node *tree);
--
cgit v1.2.1
From f5242e5a883bf1c1aba6bfd87b85e7dda0e62191 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Mon, 24 Nov 2014 17:58:01 +0000
Subject: of/reconfig: Always use the same structure for notifiers
The OF_RECONFIG notifier callback uses a different structure depending
on whether it is a node change or a property change. This is silly, and
not very safe. Rework the code to use the same data structure regardless
of the type of notifier.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: <linuxppc-dev@lists.ozlabs.org>
---
include/linux/of.h | 23 +++++++++++++----------
1 file changed, 13 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index b59ee21933a4..fe1dec87fd68 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -73,6 +73,12 @@ struct of_phandle_args {
uint32_t args[MAX_PHANDLE_ARGS];
};
+struct of_reconfig_data {
+ struct device_node *dn;
+ struct property *prop;
+ struct property *old_prop;
+};
+
/* initialize a node */
extern struct kobj_type of_node_ktype;
static inline void of_node_init(struct device_node *node)
@@ -318,12 +324,6 @@ extern int of_update_property(struct device_node *np, struct property *newprop);
#define OF_RECONFIG_REMOVE_PROPERTY 0x0004
#define OF_RECONFIG_UPDATE_PROPERTY 0x0005
-struct of_prop_reconfig {
- struct device_node *dn;
- struct property *prop;
- struct property *old_prop;
-};
-
extern int of_attach_node(struct device_node *);
extern int of_detach_node(struct device_node *);
@@ -892,8 +892,9 @@ enum of_reconfig_change {
#ifdef CONFIG_OF_DYNAMIC
extern int of_reconfig_notifier_register(struct notifier_block *);
extern int of_reconfig_notifier_unregister(struct notifier_block *);
-extern int of_reconfig_notify(unsigned long, void *);
-extern int of_reconfig_get_state_change(unsigned long action, void *arg);
+extern int of_reconfig_notify(unsigned long, struct of_reconfig_data *rd);
+extern int of_reconfig_get_state_change(unsigned long action,
+ struct of_reconfig_data *arg);
extern void of_changeset_init(struct of_changeset *ocs);
extern void of_changeset_destroy(struct of_changeset *ocs);
@@ -941,11 +942,13 @@ static inline int of_reconfig_notifier_unregister(struct notifier_block *nb)
{
return -EINVAL;
}
-static inline int of_reconfig_notify(unsigned long action, void *arg)
+static inline int of_reconfig_notify(unsigned long action,
+ struct of_reconfig_data *arg)
{
return -EINVAL;
}
-static inline int of_reconfig_get_state_change(unsigned long action, void *arg)
+static inline int of_reconfig_get_state_change(unsigned long action,
+ struct of_reconfig_data *arg)
{
return -EINVAL;
}
--
cgit v1.2.1
From 801d728c10db4b28e01590b46bf1f0df930760cc Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Date: Tue, 28 Oct 2014 22:36:01 +0200
Subject: of/reconfig: Add OF_DYNAMIC notifier for platform_bus_type
Add OF notifier handler needed for creating/destroying platform devices
according to dynamic runtime changes in the DT live tree.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of_platform.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index c2b0627a2317..8a860f096c35 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -84,4 +84,10 @@ static inline int of_platform_populate(struct device_node *root,
static inline void of_platform_depopulate(struct device *parent) { }
#endif
+#ifdef CONFIG_OF_DYNAMIC
+extern void of_platform_register_reconfig_notifier(void);
+#else
+static inline void of_platform_register_reconfig_notifier(void) { }
+#endif
+
#endif /* _LINUX_OF_PLATFORM_H */
--
cgit v1.2.1
From 7518b5890d8ac366faa2326ce2356ef6392ce63d Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Date: Tue, 28 Oct 2014 22:35:58 +0200
Subject: of/overlay: Introduce DT overlay support
Overlays are a method to dynamically modify part of the kernel's
device tree with dynamically loaded data. Add the core functionality to
parse, apply and remove an overlay changeset. The core functionality
takes care of managing the overlay data format and performing the add
and remove. Drivers are expected to use the overlay functionality to
support custom expansion busses commonly found on consumer development
boards like the BeagleBone or Raspberry Pi.
The overlay code uses CONFIG_OF_DYNAMIC changesets to perform the low
level work of modifying the devicetree.
Documentation about internal and APIs is provided in
Documentation/devicetree/overlay-notes.txt
v2:
- Switch from __of_node_alloc() to __of_node_dup()
- Documentation fixups
- Remove 2-pass processing of properties
- Remove separate ov_lock; just use the DT mutex.
v1:
- Drop delete capability using '-' prefix. The '-' prefixed names
are valid properties and nodes and there is no need for it just yet.
- Do not update special properties - name & phandle ones.
- Change order of node attachment, so that the special property update
works.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index fe1dec87fd68..aa01cf5852f8 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -23,6 +23,7 @@
#include <linux/spinlock.h>
#include <linux/topology.h>
#include <linux/notifier.h>
+#include <linux/list.h>
#include <asm/byteorder.h>
#include <asm/errno.h>
@@ -957,4 +958,34 @@ static inline int of_reconfig_get_state_change(unsigned long action,
/* CONFIG_OF_RESOLVE api */
extern int of_resolve_phandles(struct device_node *tree);
+/**
+ * Overlay support
+ */
+
+#ifdef CONFIG_OF_OVERLAY
+
+/* ID based overlays; the API for external users */
+int of_overlay_create(struct device_node *tree);
+int of_overlay_destroy(int id);
+int of_overlay_destroy_all(void);
+
+#else
+
+static inline int of_overlay_create(struct device_node *tree)
+{
+ return -ENOTSUPP;
+}
+
+static inline int of_overlay_destroy(int id)
+{
+ return -ENOTSUPP;
+}
+
+static inline int of_overlay_destroy_all(void)
+{
+ return -ENOTSUPP;
+}
+
+#endif
+
#endif /* _LINUX_OF_H */
--
cgit v1.2.1
From f895b252d4edf66b2895fb5a7b17a638665f3e1f Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Mon, 17 Nov 2014 16:58:04 -0500
Subject: sunrpc: eliminate RPC_DEBUG
It's always set to whatever CONFIG_SUNRPC_DEBUG is, so just use that.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/sunrpc/auth.h | 2 +-
include/linux/sunrpc/debug.h | 9 +++------
include/linux/sunrpc/sched.h | 8 ++++----
include/uapi/linux/nfsd/debug.h | 2 +-
4 files changed, 9 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 8e030075fe79..a7cbb570cc5c 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -53,7 +53,7 @@ struct rpc_cred {
struct rcu_head cr_rcu;
struct rpc_auth * cr_auth;
const struct rpc_credops *cr_ops;
-#ifdef RPC_DEBUG
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
unsigned long cr_magic; /* 0x0f4aa4f0 */
#endif
unsigned long cr_expire; /* when to gc */
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 9385bd74c860..51143757b8f7 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -14,9 +14,6 @@
/*
* Enable RPC debugging/profiling.
*/
-#ifdef CONFIG_SUNRPC_DEBUG
-#define RPC_DEBUG
-#endif
#ifdef CONFIG_TRACEPOINTS
#define RPC_TRACEPOINTS
#endif
@@ -25,7 +22,7 @@
/*
* Debugging macros etc
*/
-#ifdef RPC_DEBUG
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
extern unsigned int rpc_debug;
extern unsigned int nfs_debug;
extern unsigned int nfsd_debug;
@@ -36,7 +33,7 @@ extern unsigned int nlm_debug;
#define dprintk_rcu(args...) dfprintk_rcu(FACILITY, ## args)
#undef ifdebug
-#ifdef RPC_DEBUG
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
# define ifdebug(fac) if (unlikely(rpc_debug & RPCDBG_##fac))
# define dfprintk(fac, args...) \
@@ -65,7 +62,7 @@ extern unsigned int nlm_debug;
/*
* Sysctl interface for RPC debugging
*/
-#ifdef RPC_DEBUG
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
void rpc_register_sysctl(void);
void rpc_unregister_sysctl(void);
#endif
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 1a8959944c5f..fecdbf1b4797 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -79,7 +79,7 @@ struct rpc_task {
unsigned short tk_flags; /* misc flags */
unsigned short tk_timeouts; /* maj timeouts */
-#if defined(RPC_DEBUG) || defined(RPC_TRACEPOINTS)
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || defined(RPC_TRACEPOINTS)
unsigned short tk_pid; /* debugging aid */
#endif
unsigned char tk_priority : 2,/* Task priority */
@@ -187,7 +187,7 @@ struct rpc_wait_queue {
unsigned char nr; /* # tasks remaining for cookie */
unsigned short qlen; /* total # tasks waiting in queue */
struct rpc_timer timer_list;
-#if defined(RPC_DEBUG) || defined(RPC_TRACEPOINTS)
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || defined(RPC_TRACEPOINTS)
const char * name;
#endif
};
@@ -237,7 +237,7 @@ void rpc_free(void *);
int rpciod_up(void);
void rpciod_down(void);
int __rpc_wait_for_completion_task(struct rpc_task *task, wait_bit_action_f *);
-#ifdef RPC_DEBUG
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
struct net;
void rpc_show_tasks(struct net *);
#endif
@@ -251,7 +251,7 @@ static inline int rpc_wait_for_completion_task(struct rpc_task *task)
return __rpc_wait_for_completion_task(task, NULL);
}
-#if defined(RPC_DEBUG) || defined (RPC_TRACEPOINTS)
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || defined (RPC_TRACEPOINTS)
static inline const char * rpc_qname(const struct rpc_wait_queue *q)
{
return ((q && q->name) ? q->name : "unknown");
diff --git a/include/uapi/linux/nfsd/debug.h b/include/uapi/linux/nfsd/debug.h
index a6f453c740b8..1fdc95bb2375 100644
--- a/include/uapi/linux/nfsd/debug.h
+++ b/include/uapi/linux/nfsd/debug.h
@@ -15,7 +15,7 @@
* Enable debugging for nfsd.
* Requires RPC_DEBUG.
*/
-#ifdef RPC_DEBUG
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
# define NFSD_DEBUG 1
#endif
--
cgit v1.2.1
From 1306729b0d4f4a0bd0d098711ed3d938dc5a1a28 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Mon, 17 Nov 2014 16:58:05 -0500
Subject: sunrpc: eliminate RPC_TRACEPOINTS
It's always set to the same value as CONFIG_TRACEPOINTS, so we can just
use that instead.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/sunrpc/debug.h | 9 ---------
include/linux/sunrpc/sched.h | 6 +++---
2 files changed, 3 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 51143757b8f7..43f38ee9668c 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -10,15 +10,6 @@
#include <uapi/linux/sunrpc/debug.h>
-
-/*
- * Enable RPC debugging/profiling.
- */
-#ifdef CONFIG_TRACEPOINTS
-#define RPC_TRACEPOINTS
-#endif
-/* #define RPC_PROFILE */
-
/*
* Debugging macros etc
*/
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index fecdbf1b4797..5f1e6bd4c316 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -79,7 +79,7 @@ struct rpc_task {
unsigned short tk_flags; /* misc flags */
unsigned short tk_timeouts; /* maj timeouts */
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || defined(RPC_TRACEPOINTS)
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
unsigned short tk_pid; /* debugging aid */
#endif
unsigned char tk_priority : 2,/* Task priority */
@@ -187,7 +187,7 @@ struct rpc_wait_queue {
unsigned char nr; /* # tasks remaining for cookie */
unsigned short qlen; /* total # tasks waiting in queue */
struct rpc_timer timer_list;
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || defined(RPC_TRACEPOINTS)
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
const char * name;
#endif
};
@@ -251,7 +251,7 @@ static inline int rpc_wait_for_completion_task(struct rpc_task *task)
return __rpc_wait_for_completion_task(task, NULL);
}
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || defined (RPC_TRACEPOINTS)
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) || IS_ENABLED(CONFIG_TRACEPOINTS)
static inline const char * rpc_qname(const struct rpc_wait_queue *q)
{
return ((q && q->name) ? q->name : "unknown");
--
cgit v1.2.1
From 4ed0d6a9cf80a4a1f74e18d36a2ee5ef391a8f27 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Sun, 23 Nov 2014 09:39:53 -0300
Subject: [media] v4l2-common: remove unused helper functions
Several control helper functions are no longer needed since most drivers
are now converted to the control framework. So we can delete them.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/v4l2-common.h | 10 ----------
1 file changed, 10 deletions(-)
(limited to 'include')
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 48f974866f13..6b4951de7592 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -88,16 +88,6 @@ const char *v4l2_ctrl_get_name(u32 id);
const char * const *v4l2_ctrl_get_menu(u32 id);
const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len);
int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
-int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu,
- struct v4l2_queryctrl *qctrl, const char * const *menu_items);
-#define V4L2_CTRL_MENU_IDS_END (0xffffffff)
-int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids);
-
-/* Note: ctrl_classes points to an array of u32 pointers. Each u32 array is a
- 0-terminated array of control IDs. Each array must be sorted low to high
- and belong to the same control class. The array of u32 pointers must also
- be sorted, from low class IDs to high class IDs. */
-u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id);
/* ------------------------------------------------------------------------- */
--
cgit v1.2.1
From 79fbc209f11b82d8cad37e20da71851fdceecfbd Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Sun, 23 Nov 2014 09:39:54 -0300
Subject: [media] v4l2-ctrl: move function prototypes from common.h to ctrls.h
For some unknown reason several control prototypes where in v4l2-common.c
instead of in v4l2-ctrls.h. Move them and document them.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/v4l2-common.h | 3 ---
include/media/v4l2-ctrls.h | 25 +++++++++++++++++++++++++
2 files changed, 25 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 6b4951de7592..c69d91d32e59 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -84,9 +84,6 @@
int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
const char * const *menu_items);
-const char *v4l2_ctrl_get_name(u32 id);
-const char * const *v4l2_ctrl_get_menu(u32 id);
-const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len);
int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
/* ------------------------------------------------------------------------- */
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index b7cd7a665e35..911f3e542834 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -670,6 +670,31 @@ static inline int v4l2_ctrl_modify_range(struct v4l2_ctrl *ctrl,
*/
void v4l2_ctrl_notify(struct v4l2_ctrl *ctrl, v4l2_ctrl_notify_fnc notify, void *priv);
+/** v4l2_ctrl_get_name() - Get the name of the control
+ * @id: The control ID.
+ *
+ * This function returns the name of the given control ID or NULL if it isn't
+ * a known control.
+ */
+const char *v4l2_ctrl_get_name(u32 id);
+
+/** v4l2_ctrl_get_menu() - Get the menu string array of the control
+ * @id: The control ID.
+ *
+ * This function returns the NULL-terminated menu string array name of the
+ * given control ID or NULL if it isn't a known menu control.
+ */
+const char * const *v4l2_ctrl_get_menu(u32 id);
+
+/** v4l2_ctrl_get_int_menu() - Get the integer menu array of the control
+ * @id: The control ID.
+ * @len: The size of the integer array.
+ *
+ * This function returns the integer array of the given control ID or NULL if it
+ * if it isn't a known integer menu control.
+ */
+const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len);
+
/** v4l2_ctrl_g_ctrl() - Helper function to get the control's value from within a driver.
* @ctrl: The control.
*
--
cgit v1.2.1
From 4daee77976718b3e8136e37872d7ad5c36754e25 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Sun, 23 Nov 2014 09:39:55 -0300
Subject: [media] v4l2-common: move v4l2_ctrl_check to cx2341x
The v4l2_ctrl_check() helper function is now only used in cx2341x.
Move it there and make it static.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/v4l2-common.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index c69d91d32e59..1cc0c5ba16b3 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -80,10 +80,8 @@
/* ------------------------------------------------------------------------- */
-/* Control helper functions */
+/* Control helper function */
-int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
- const char * const *menu_items);
int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
/* ------------------------------------------------------------------------- */
--
cgit v1.2.1
From cf227429c74778cc9f8caf734d1f161f8f021915 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Tue, 18 Nov 2014 09:50:57 -0300
Subject: [media] videobuf2-core.h: improve documentation
Document that drivers can access/modify the buffer contents in buf_prepare
and buf_finish. That was not clearly stated before.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/videobuf2-core.h | 32 +++++++++++++++++---------------
1 file changed, 17 insertions(+), 15 deletions(-)
(limited to 'include')
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 6ef2d01197da..70ace7cc6087 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -270,22 +270,24 @@ struct vb2_buffer {
* queue setup from completing successfully; optional.
* @buf_prepare: called every time the buffer is queued from userspace
* and from the VIDIOC_PREPARE_BUF ioctl; drivers may
- * perform any initialization required before each hardware
- * operation in this callback; drivers that support
- * VIDIOC_CREATE_BUFS must also validate the buffer size;
- * if an error is returned, the buffer will not be queued
- * in driver; optional.
+ * perform any initialization required before each
+ * hardware operation in this callback; drivers can
+ * access/modify the buffer here as it is still synced for
+ * the CPU; drivers that support VIDIOC_CREATE_BUFS must
+ * also validate the buffer size; if an error is returned,
+ * the buffer will not be queued in driver; optional.
* @buf_finish: called before every dequeue of the buffer back to
- * userspace; drivers may perform any operations required
- * before userspace accesses the buffer; optional. The
- * buffer state can be one of the following: DONE and
- * ERROR occur while streaming is in progress, and the
- * PREPARED state occurs when the queue has been canceled
- * and all pending buffers are being returned to their
- * default DEQUEUED state. Typically you only have to do
- * something if the state is VB2_BUF_STATE_DONE, since in
- * all other cases the buffer contents will be ignored
- * anyway.
+ * userspace; the buffer is synced for the CPU, so drivers
+ * can access/modify the buffer contents; drivers may
+ * perform any operations required before userspace
+ * accesses the buffer; optional. The buffer state can be
+ * one of the following: DONE and ERROR occur while
+ * streaming is in progress, and the PREPARED state occurs
+ * when the queue has been canceled and all pending
+ * buffers are being returned to their default DEQUEUED
+ * state. Typically you only have to do something if the
+ * state is VB2_BUF_STATE_DONE, since in all other cases
+ * the buffer contents will be ignored anyway.
* @buf_cleanup: called once before the buffer is freed; drivers may
* perform any additional cleanup; optional.
* @start_streaming: called once to enter 'streaming' state; the driver may
--
cgit v1.2.1
From cd474037c4a9a9c15cab46ff26ceeed1bbda6abb Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Tue, 18 Nov 2014 09:50:58 -0300
Subject: [media] vb2: replace 'write' by 'dma_dir'
The 'write' argument is very ambiguous. I first assumed that if it is 1,
then we're doing video output but instead it meant the reverse.
Since it is used to setup the dma_dir value anyway it is now replaced by
the correct dma_dir value which is unambiguous.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/videobuf2-core.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 70ace7cc6087..d607871749c7 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -87,14 +87,16 @@ struct vb2_mem_ops {
struct dma_buf *(*get_dmabuf)(void *buf_priv, unsigned long flags);
void *(*get_userptr)(void *alloc_ctx, unsigned long vaddr,
- unsigned long size, int write);
+ unsigned long size,
+ enum dma_data_direction dma_dir);
void (*put_userptr)(void *buf_priv);
void (*prepare)(void *buf_priv);
void (*finish)(void *buf_priv);
void *(*attach_dmabuf)(void *alloc_ctx, struct dma_buf *dbuf,
- unsigned long size, int write);
+ unsigned long size,
+ enum dma_data_direction dma_dir);
void (*detach_dmabuf)(void *buf_priv);
int (*map_dmabuf)(void *buf_priv);
void (*unmap_dmabuf)(void *buf_priv);
--
cgit v1.2.1
From d935c57e8fb6902a9ede603bb55d9e158f75f09a Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Tue, 18 Nov 2014 09:50:59 -0300
Subject: [media] vb2: add dma_dir to the alloc memop
This is needed for the next patch where the dma-sg alloc memop needs
to know the dma_dir.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/videobuf2-core.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index d607871749c7..bd2cec2d6c3d 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -82,7 +82,9 @@ struct vb2_threadio_data;
* unmap_dmabuf.
*/
struct vb2_mem_ops {
- void *(*alloc)(void *alloc_ctx, unsigned long size, gfp_t gfp_flags);
+ void *(*alloc)(void *alloc_ctx, unsigned long size,
+ enum dma_data_direction dma_dir,
+ gfp_t gfp_flags);
void (*put)(void *buf_priv);
struct dma_buf *(*get_dmabuf)(void *buf_priv, unsigned long flags);
--
cgit v1.2.1
From 0c3a14c177aa85afb991e7c2be3921aa9a52a893 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Tue, 18 Nov 2014 09:51:01 -0300
Subject: [media] vb2-dma-sg: add allocation context to dma-sg
Require that dma-sg also uses an allocation context. This is in preparation
for adding prepare/finish memops to sync the memory between DMA and CPU.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/videobuf2-dma-sg.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/media/videobuf2-dma-sg.h b/include/media/videobuf2-dma-sg.h
index 7b89852779af..14ce3068b642 100644
--- a/include/media/videobuf2-dma-sg.h
+++ b/include/media/videobuf2-dma-sg.h
@@ -21,6 +21,9 @@ static inline struct sg_table *vb2_dma_sg_plane_desc(
return (struct sg_table *)vb2_plane_cookie(vb, plane_no);
}
+void *vb2_dma_sg_init_ctx(struct device *dev);
+void vb2_dma_sg_cleanup_ctx(void *alloc_ctx);
+
extern const struct vb2_mem_ops vb2_dma_sg_memops;
#endif
--
cgit v1.2.1
From 2d4e2d020516632288e8c8d1f8be2f3042d6b8de Mon Sep 17 00:00:00 2001
From: Bard Liao <bardliao@realtek.com>
Date: Tue, 18 Nov 2014 16:50:18 +0800
Subject: ASoC: rt5645: multiple JD mode support
There are 3 JD modes in RT5645. This patch configure register
values according to platform data.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/rt5645.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/sound/rt5645.h b/include/sound/rt5645.h
index 937f421bc66b..120d9610054e 100644
--- a/include/sound/rt5645.h
+++ b/include/sound/rt5645.h
@@ -26,6 +26,7 @@ struct rt5645_platform_data {
/* true if codec's jd function is used */
bool en_jd_func;
+ unsigned int jd_mode;
};
#endif
--
cgit v1.2.1
From f1c37e1adc6eca1fb492c74d466141d9b01e0428 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 25 Nov 2014 12:09:44 +0100
Subject: drm/plane: Pass old state to ->atomic_update()
In most situations it will be useful to have the old state passed to the
->atomic_update() callback. For example if a plane is being disabled the
new state's .crtc field will be NULL, but some drivers may rely on this
field to program the CRTCs registers.
v2: rename variable to old_plane_state and remove redundant comment as
suggested by Daniel Vetter, remove an Exynos hunk that doesn't apply to
drm-next and add a hunk for pending MSM mdp5 changes
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_plane_helper.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index c48f14d88690..fcfa969523fb 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -60,7 +60,8 @@ struct drm_plane_helper_funcs {
int (*atomic_check)(struct drm_plane *plane,
struct drm_plane_state *state);
- void (*atomic_update)(struct drm_plane *plane);
+ void (*atomic_update)(struct drm_plane *plane,
+ struct drm_plane_state *old_state);
};
static inline void drm_plane_helper_add(struct drm_plane *plane,
--
cgit v1.2.1
From 5d571690154cbe7e7b4d24ea8af2393146609b0e Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 25 Nov 2014 12:09:45 +0100
Subject: drm/plane: Add missing kerneldoc
The plane helpers aren't pulled into the DocBook yet, so these weren't
noticed.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_plane_helper.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index fcfa969523fb..a185392cafeb 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -49,6 +49,10 @@ extern int drm_crtc_init(struct drm_device *dev,
/**
* drm_plane_helper_funcs - helper operations for CRTCs
+ * @prepare_fb: prepare a framebuffer for use by the plane
+ * @cleanup_fb: cleanup a framebuffer when it's no longer used by the plane
+ * @atomic_check: check that a given atomic state is valid and can be applied
+ * @atomic_update: apply an atomic state to the plane
*
* The helper operations are called by the mid-layer CRTC helper.
*/
--
cgit v1.2.1
From 0254951d9c581ea21f989f7c8248079fb414a152 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 25 Nov 2014 12:09:47 +0100
Subject: drm: Make drm_atomic_helper.h standalone includible
This header uses a bunch of declarations from the drm/drm_crtc.h header,
so make sure to include that as well so that drm_atomic_helper.h can be
included standalone.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic_helper.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 64b4e91b93bc..70a83197ef66 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -28,6 +28,8 @@
#ifndef DRM_ATOMIC_HELPER_H_
#define DRM_ATOMIC_HELPER_H_
+#include <drm/drm_crtc.h>
+
int drm_atomic_helper_check(struct drm_device *dev,
struct drm_atomic_state *state);
int drm_atomic_helper_commit(struct drm_device *dev,
--
cgit v1.2.1
From 37cc0148773abbd8e7dbf8b2cb3399e887233fc2 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 25 Nov 2014 12:09:48 +0100
Subject: drm: Make drm_atomic.h standalone includible
This header file makes use of a bunch of structures declared in the
drm_crtc.h header file. Include that to make sure the drm_atomic.h
header can be included standalone.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 9d919168bc11..e224ccfa11ca 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -28,6 +28,8 @@
#ifndef DRM_ATOMIC_H_
#define DRM_ATOMIC_H_
+#include <drm/drm_crtc.h>
+
struct drm_atomic_state * __must_check
drm_atomic_state_alloc(struct drm_device *dev);
void drm_atomic_state_clear(struct drm_atomic_state *state);
--
cgit v1.2.1
From 93b0f3eeebdce6f32417187b5d24ea218a3e7fb4 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Tue, 25 Nov 2014 13:16:12 +0100
Subject: ASoC: core: add multi-codec support in DT
This patch exports a core function which handles the DT description
of multi-codec links (as: "sound-dai = <&hdmi 0>, <&spdif_codec>;")
and creates a CODEC component array in the DAI link.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 7ba7130037a0..2750e6ad0128 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1451,6 +1451,9 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
struct device_node **framemaster);
int snd_soc_of_get_dai_name(struct device_node *of_node,
const char **dai_name);
+int snd_soc_of_get_dai_link_codecs(struct device *dev,
+ struct device_node *of_node,
+ struct snd_soc_dai_link *dai_link);
#include <sound/soc-dai.h>
--
cgit v1.2.1
From bf4bea8e9a9058319a19f8c2710a6f0ef2459983 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 10 Nov 2014 08:33:56 +0000
Subject: kvm: fix kvm_is_mmio_pfn() and rename to kvm_is_reserved_pfn()
This reverts commit 85c8555ff0 ("KVM: check for !is_zero_pfn() in
kvm_is_mmio_pfn()") and renames the function to kvm_is_reserved_pfn.
The problem being addressed by the patch above was that some ARM code
based the memory mapping attributes of a pfn on the return value of
kvm_is_mmio_pfn(), whose name indeed suggests that such pfns should
be mapped as device memory.
However, kvm_is_mmio_pfn() doesn't do quite what it says on the tin,
and the existing non-ARM users were already using it in a way which
suggests that its name should probably have been 'kvm_is_reserved_pfn'
from the beginning, e.g., whether or not to call get_page/put_page on
it etc. This means that returning false for the zero page is a mistake
and the patch above should be reverted.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
include/linux/kvm_host.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ea53b04993f2..a6059bdf7b03 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -703,7 +703,7 @@ void kvm_arch_sync_events(struct kvm *kvm);
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
-bool kvm_is_mmio_pfn(pfn_t pfn);
+bool kvm_is_reserved_pfn(pfn_t pfn);
struct kvm_irq_ack_notifier {
struct hlist_node link;
--
cgit v1.2.1
From 1050dcda3052912984b26fb6d2695a3f41792000 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 17 Nov 2014 14:58:51 +0000
Subject: kvm: add a memslot flag for incoherent memory regions
Memory regions may be incoherent with the caches, typically when the
guest has mapped a host system RAM backed memory region as uncached.
Add a flag KVM_MEMSLOT_INCOHERENT so that we can tag these memslots
and handle them appropriately when mapping them.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
include/linux/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a6059bdf7b03..e4d8f705fecd 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -43,6 +43,7 @@
* include/linux/kvm_h.
*/
#define KVM_MEMSLOT_INVALID (1UL << 16)
+#define KVM_MEMSLOT_INCOHERENT (1UL << 17)
/* Two fragments for cross MMIO pages. */
#define KVM_MAX_MMIO_FRAGMENTS 2
--
cgit v1.2.1
From 7ff28aee40c42676abc3baab122d45826726ea49 Mon Sep 17 00:00:00 2001
From: Ondrej Zary <linux@rainbow-software.org>
Date: Mon, 24 Nov 2014 23:24:40 +0100
Subject: eeprom-93cx6: Add (read-only) support for 8-bit mode
Add read-only support for EEPROMs configured in 8-bit mode (ORG pin connected
to GND).
This will be used by wd719x driver.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/linux/eeprom_93cx6.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/eeprom_93cx6.h b/include/linux/eeprom_93cx6.h
index e50f98b0297a..eb0b1988050a 100644
--- a/include/linux/eeprom_93cx6.h
+++ b/include/linux/eeprom_93cx6.h
@@ -75,6 +75,10 @@ extern void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom,
const u8 word, u16 *data);
extern void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom,
const u8 word, __le16 *data, const u16 words);
+extern void eeprom_93cx6_readb(struct eeprom_93cx6 *eeprom,
+ const u8 byte, u8 *data);
+extern void eeprom_93cx6_multireadb(struct eeprom_93cx6 *eeprom,
+ const u8 byte, u8 *data, const u16 bytes);
extern void eeprom_93cx6_wren(struct eeprom_93cx6 *eeprom, bool enable);
--
cgit v1.2.1
From 79e886599e6416d0de26e8562e4464577d081c3d Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 19 Nov 2014 17:13:11 +0100
Subject: crypto: algif - add and use sock_kzfree_s() instead of
memzero_explicit()
Commit e1bd95bf7c25 ("crypto: algif - zeroize IV buffer") and
2a6af25befd0 ("crypto: algif - zeroize message digest buffer")
added memzero_explicit() calls on buffers that are later on
passed back to sock_kfree_s().
This is a discussed follow-up that, instead, extends the sock
API and adds sock_kzfree_s(), which internally uses kzfree()
instead of kfree() for passing the buffers back to slab.
Having sock_kzfree_s() allows to keep the changes more minimal
by just having a drop-in replacement instead of adding
memzero_explicit() calls everywhere before sock_kfree_s().
In kzfree(), the compiler is not allowed to optimize the memset()
away and thus there's no need for memzero_explicit(). Both,
sock_kfree_s() and sock_kzfree_s() are wrappers for
__sock_kfree_s() and call into kfree() resp. kzfree(); here,
__sock_kfree_s() needs to be explicitly inlined as we want the
compiler to optimize the call and condition away and thus it
produces e.g. on x86_64 the _same_ assembler output for
sock_kfree_s() before and after, and thus also allows for
avoiding code duplication.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/net/sock.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/sock.h b/include/net/sock.h
index 7db3db112baa..37d6cc5dcf33 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1588,6 +1588,7 @@ struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len,
int *errcode, int max_page_order);
void *sock_kmalloc(struct sock *sk, int size, gfp_t priority);
void sock_kfree_s(struct sock *sk, void *mem, int size);
+void sock_kzfree_s(struct sock *sk, void *mem, int size);
void sk_send_sigurg(struct sock *sk);
/*
--
cgit v1.2.1
From 1cc6adfef42615478e9af1228377acbc9f54f00f Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Tue, 25 Nov 2014 05:54:27 -0300
Subject: [media] media: v4l2-image-sizes.h: add SVGA, XGA and UXGA size
definitions
Add SVGA, UXGA and XGA size definitions to v4l2-image-sizes.h.
The definitions are sorted by alphabet order.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/v4l2-image-sizes.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/media/v4l2-image-sizes.h b/include/media/v4l2-image-sizes.h
index 10daf92ff1ab..c70c917b97a8 100644
--- a/include/media/v4l2-image-sizes.h
+++ b/include/media/v4l2-image-sizes.h
@@ -25,10 +25,19 @@
#define QVGA_WIDTH 320
#define QVGA_HEIGHT 240
+#define SVGA_WIDTH 800
+#define SVGA_HEIGHT 680
+
#define SXGA_WIDTH 1280
#define SXGA_HEIGHT 1024
#define VGA_WIDTH 640
#define VGA_HEIGHT 480
+#define UXGA_WIDTH 1600
+#define UXGA_HEIGHT 1200
+
+#define XGA_WIDTH 1024
+#define XGA_HEIGHT 768
+
#endif /* _IMAGE_SIZES_H */
--
cgit v1.2.1
From 3bc2ee91a470c52fb3979c23c12d43283455f10d Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Tue, 18 Nov 2014 17:59:39 +0900
Subject: mfd: sec-core: Add support for S2MPS13 device
This patch adds the support for Samsung S2MPS13 PMIC device to the sec-core MFD
driver. The S2MPS13 is very similar with existing S2MPS14 and includes PMIC/
RTC/CLOCK devices.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/samsung/core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index 1825edacbda7..0c0343e06ba6 100644
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -41,6 +41,7 @@ enum sec_device_type {
S5M8767X,
S2MPA01,
S2MPS11X,
+ S2MPS13X,
S2MPS14X,
S2MPU02,
};
--
cgit v1.2.1
From 76b9840b24ae049b39f1b3cf0e49f21b7c41748f Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Tue, 18 Nov 2014 17:59:40 +0900
Subject: regulator: s2mps11: Add support S2MPS13 regulator device
This patch adds S2MPS13 regulator device to existing S2MPS11 device driver.
The S2MPS13 has just different number of regulators from S2MPS14.
The S2MPS13 regulator device includes LDO[1-40] and BUCK[1-10].
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/samsung/core.h | 1 +
include/linux/mfd/samsung/s2mps13.h | 186 ++++++++++++++++++++++++++++++++++++
2 files changed, 187 insertions(+)
create mode 100644 include/linux/mfd/samsung/s2mps13.h
(limited to 'include')
diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index 0c0343e06ba6..3fdb7cfbffb3 100644
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -28,6 +28,7 @@
#define MIN_800_MV 800000
#define MIN_750_MV 750000
#define MIN_600_MV 600000
+#define MIN_500_MV 500000
/* Macros to represent steps for LDO/BUCK */
#define STEP_50_MV 50000
diff --git a/include/linux/mfd/samsung/s2mps13.h b/include/linux/mfd/samsung/s2mps13.h
new file mode 100644
index 000000000000..ce5dda8958fe
--- /dev/null
+++ b/include/linux/mfd/samsung/s2mps13.h
@@ -0,0 +1,186 @@
+/*
+ * s2mps13.h
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd
+ * http://www.samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __LINUX_MFD_S2MPS13_H
+#define __LINUX_MFD_S2MPS13_H
+
+/* S2MPS13 registers */
+enum s2mps13_reg {
+ S2MPS13_REG_ID,
+ S2MPS13_REG_INT1,
+ S2MPS13_REG_INT2,
+ S2MPS13_REG_INT3,
+ S2MPS13_REG_INT1M,
+ S2MPS13_REG_INT2M,
+ S2MPS13_REG_INT3M,
+ S2MPS13_REG_ST1,
+ S2MPS13_REG_ST2,
+ S2MPS13_REG_PWRONSRC,
+ S2MPS13_REG_OFFSRC,
+ S2MPS13_REG_BU_CHG,
+ S2MPS13_REG_RTCCTRL,
+ S2MPS13_REG_CTRL1,
+ S2MPS13_REG_CTRL2,
+ S2MPS13_REG_RSVD1,
+ S2MPS13_REG_RSVD2,
+ S2MPS13_REG_RSVD3,
+ S2MPS13_REG_RSVD4,
+ S2MPS13_REG_RSVD5,
+ S2MPS13_REG_RSVD6,
+ S2MPS13_REG_CTRL3,
+ S2MPS13_REG_RSVD7,
+ S2MPS13_REG_RSVD8,
+ S2MPS13_REG_WRSTBI,
+ S2MPS13_REG_B1CTRL,
+ S2MPS13_REG_B1OUT,
+ S2MPS13_REG_B2CTRL,
+ S2MPS13_REG_B2OUT,
+ S2MPS13_REG_B3CTRL,
+ S2MPS13_REG_B3OUT,
+ S2MPS13_REG_B4CTRL,
+ S2MPS13_REG_B4OUT,
+ S2MPS13_REG_B5CTRL,
+ S2MPS13_REG_B5OUT,
+ S2MPS13_REG_B6CTRL,
+ S2MPS13_REG_B6OUT,
+ S2MPS13_REG_B7CTRL,
+ S2MPS13_REG_B7OUT,
+ S2MPS13_REG_B8CTRL,
+ S2MPS13_REG_B8OUT,
+ S2MPS13_REG_B9CTRL,
+ S2MPS13_REG_B9OUT,
+ S2MPS13_REG_B10CTRL,
+ S2MPS13_REG_B10OUT,
+ S2MPS13_REG_BB1CTRL,
+ S2MPS13_REG_BB1OUT,
+ S2MPS13_REG_BUCK_RAMP1,
+ S2MPS13_REG_BUCK_RAMP2,
+ S2MPS13_REG_LDO_DVS1,
+ S2MPS13_REG_LDO_DVS2,
+ S2MPS13_REG_LDO_DVS3,
+ S2MPS13_REG_B6OUT2,
+ S2MPS13_REG_L1CTRL,
+ S2MPS13_REG_L2CTRL,
+ S2MPS13_REG_L3CTRL,
+ S2MPS13_REG_L4CTRL,
+ S2MPS13_REG_L5CTRL,
+ S2MPS13_REG_L6CTRL,
+ S2MPS13_REG_L7CTRL,
+ S2MPS13_REG_L8CTRL,
+ S2MPS13_REG_L9CTRL,
+ S2MPS13_REG_L10CTRL,
+ S2MPS13_REG_L11CTRL,
+ S2MPS13_REG_L12CTRL,
+ S2MPS13_REG_L13CTRL,
+ S2MPS13_REG_L14CTRL,
+ S2MPS13_REG_L15CTRL,
+ S2MPS13_REG_L16CTRL,
+ S2MPS13_REG_L17CTRL,
+ S2MPS13_REG_L18CTRL,
+ S2MPS13_REG_L19CTRL,
+ S2MPS13_REG_L20CTRL,
+ S2MPS13_REG_L21CTRL,
+ S2MPS13_REG_L22CTRL,
+ S2MPS13_REG_L23CTRL,
+ S2MPS13_REG_L24CTRL,
+ S2MPS13_REG_L25CTRL,
+ S2MPS13_REG_L26CTRL,
+ S2MPS13_REG_L27CTRL,
+ S2MPS13_REG_L28CTRL,
+ S2MPS13_REG_L30CTRL,
+ S2MPS13_REG_L31CTRL,
+ S2MPS13_REG_L32CTRL,
+ S2MPS13_REG_L33CTRL,
+ S2MPS13_REG_L34CTRL,
+ S2MPS13_REG_L35CTRL,
+ S2MPS13_REG_L36CTRL,
+ S2MPS13_REG_L37CTRL,
+ S2MPS13_REG_L38CTRL,
+ S2MPS13_REG_L39CTRL,
+ S2MPS13_REG_L40CTRL,
+ S2MPS13_REG_LDODSCH1,
+ S2MPS13_REG_LDODSCH2,
+ S2MPS13_REG_LDODSCH3,
+ S2MPS13_REG_LDODSCH4,
+ S2MPS13_REG_LDODSCH5,
+};
+
+/* regulator ids */
+enum s2mps13_regulators {
+ S2MPS13_LDO1,
+ S2MPS13_LDO2,
+ S2MPS13_LDO3,
+ S2MPS13_LDO4,
+ S2MPS13_LDO5,
+ S2MPS13_LDO6,
+ S2MPS13_LDO7,
+ S2MPS13_LDO8,
+ S2MPS13_LDO9,
+ S2MPS13_LDO10,
+ S2MPS13_LDO11,
+ S2MPS13_LDO12,
+ S2MPS13_LDO13,
+ S2MPS13_LDO14,
+ S2MPS13_LDO15,
+ S2MPS13_LDO16,
+ S2MPS13_LDO17,
+ S2MPS13_LDO18,
+ S2MPS13_LDO19,
+ S2MPS13_LDO20,
+ S2MPS13_LDO21,
+ S2MPS13_LDO22,
+ S2MPS13_LDO23,
+ S2MPS13_LDO24,
+ S2MPS13_LDO25,
+ S2MPS13_LDO26,
+ S2MPS13_LDO27,
+ S2MPS13_LDO28,
+ S2MPS13_LDO29,
+ S2MPS13_LDO30,
+ S2MPS13_LDO31,
+ S2MPS13_LDO32,
+ S2MPS13_LDO33,
+ S2MPS13_LDO34,
+ S2MPS13_LDO35,
+ S2MPS13_LDO36,
+ S2MPS13_LDO37,
+ S2MPS13_LDO38,
+ S2MPS13_LDO39,
+ S2MPS13_LDO40,
+ S2MPS13_BUCK1,
+ S2MPS13_BUCK2,
+ S2MPS13_BUCK3,
+ S2MPS13_BUCK4,
+ S2MPS13_BUCK5,
+ S2MPS13_BUCK6,
+ S2MPS13_BUCK7,
+ S2MPS13_BUCK8,
+ S2MPS13_BUCK9,
+ S2MPS13_BUCK10,
+
+ S2MPS13_REGULATOR_MAX,
+};
+
+/*
+ * Default ramp delay in uv/us. Datasheet says that ramp delay can be
+ * controlled however it does not specify which register is used for that.
+ * Let's assume that default value will be set.
+ */
+#define S2MPS13_BUCK_RAMP_DELAY 12500
+
+#endif /* __LINUX_MFD_S2MPS13_H */
--
cgit v1.2.1
From 2c86e9fb7263dbca2c21a086090d32ba90129f7b Mon Sep 17 00:00:00 2001
From: Boris Brezillon <boris.brezillon@free-electrons.com>
Date: Mon, 6 Oct 2014 15:48:43 +0200
Subject: mfd: Add atmel-hlcdc driver
The HLCDC IP available on some Atmel SoCs (i.e. at91sam9n12, at91sam9x5
family or sama5d3 family) exposes 2 subdevices:
- a display controller (controlled by a DRM driver)
- a PWM chip
The MFD device provides a regmap and several clocks (those connected
to this hardware block) to its subdevices.
This way concurrent accesses to the iomem range are handled by the regmap
framework, and each subdevice can safely access HLCDC registers.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Anthony Harivel <anthony.harivel@emtrion.de>
Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/atmel-hlcdc.h | 85 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 85 insertions(+)
create mode 100644 include/linux/mfd/atmel-hlcdc.h
(limited to 'include')
diff --git a/include/linux/mfd/atmel-hlcdc.h b/include/linux/mfd/atmel-hlcdc.h
new file mode 100644
index 000000000000..1279ab1644b5
--- /dev/null
+++ b/include/linux/mfd/atmel-hlcdc.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2014 Free Electrons
+ * Copyright (C) 2014 Atmel
+ *
+ * Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __LINUX_MFD_HLCDC_H
+#define __LINUX_MFD_HLCDC_H
+
+#include <linux/clk.h>
+#include <linux/regmap.h>
+
+#define ATMEL_HLCDC_CFG(i) ((i) * 0x4)
+#define ATMEL_HLCDC_SIG_CFG LCDCFG(5)
+#define ATMEL_HLCDC_HSPOL BIT(0)
+#define ATMEL_HLCDC_VSPOL BIT(1)
+#define ATMEL_HLCDC_VSPDLYS BIT(2)
+#define ATMEL_HLCDC_VSPDLYE BIT(3)
+#define ATMEL_HLCDC_DISPPOL BIT(4)
+#define ATMEL_HLCDC_DITHER BIT(6)
+#define ATMEL_HLCDC_DISPDLY BIT(7)
+#define ATMEL_HLCDC_MODE_MASK GENMASK(9, 8)
+#define ATMEL_HLCDC_PP BIT(10)
+#define ATMEL_HLCDC_VSPSU BIT(12)
+#define ATMEL_HLCDC_VSPHO BIT(13)
+#define ATMEL_HLCDC_GUARDTIME_MASK GENMASK(20, 16)
+
+#define ATMEL_HLCDC_EN 0x20
+#define ATMEL_HLCDC_DIS 0x24
+#define ATMEL_HLCDC_SR 0x28
+#define ATMEL_HLCDC_IER 0x2c
+#define ATMEL_HLCDC_IDR 0x30
+#define ATMEL_HLCDC_IMR 0x34
+#define ATMEL_HLCDC_ISR 0x38
+
+#define ATMEL_HLCDC_CLKPOL BIT(0)
+#define ATMEL_HLCDC_CLKSEL BIT(2)
+#define ATMEL_HLCDC_CLKPWMSEL BIT(3)
+#define ATMEL_HLCDC_CGDIS(i) BIT(8 + (i))
+#define ATMEL_HLCDC_CLKDIV_SHFT 16
+#define ATMEL_HLCDC_CLKDIV_MASK GENMASK(23, 16)
+#define ATMEL_HLCDC_CLKDIV(div) ((div - 2) << ATMEL_HLCDC_CLKDIV_SHFT)
+
+#define ATMEL_HLCDC_PIXEL_CLK BIT(0)
+#define ATMEL_HLCDC_SYNC BIT(1)
+#define ATMEL_HLCDC_DISP BIT(2)
+#define ATMEL_HLCDC_PWM BIT(3)
+#define ATMEL_HLCDC_SIP BIT(4)
+
+#define ATMEL_HLCDC_SOF BIT(0)
+#define ATMEL_HLCDC_SYNCDIS BIT(1)
+#define ATMEL_HLCDC_FIFOERR BIT(4)
+#define ATMEL_HLCDC_LAYER_STATUS(x) BIT((x) + 8)
+
+/**
+ * Structure shared by the MFD device and its subdevices.
+ *
+ * @regmap: register map used to access HLCDC IP registers
+ * @periph_clk: the hlcdc peripheral clock
+ * @sys_clk: the hlcdc system clock
+ * @slow_clk: the system slow clk
+ * @irq: the hlcdc irq
+ */
+struct atmel_hlcdc {
+ struct regmap *regmap;
+ struct clk *periph_clk;
+ struct clk *sys_clk;
+ struct clk *slow_clk;
+ int irq;
+};
+
+#endif /* __LINUX_MFD_HLCDC_H */
--
cgit v1.2.1
From 6cbac55368324ec2a0e59e192c5b596d0f4569f7 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 10 Oct 2014 10:23:53 +0200
Subject: mfd: max77693: Remove unused define
Remove old MAX77693_NUM_IRQ_MUIC_REGS define. Not used anywhere.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/max77693-private.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
index fc17d56581b2..6392a1565452 100644
--- a/include/linux/mfd/max77693-private.h
+++ b/include/linux/mfd/max77693-private.h
@@ -26,7 +26,6 @@
#include <linux/i2c.h>
-#define MAX77693_NUM_IRQ_MUIC_REGS 3
#define MAX77693_REG_INVALID (0xff)
/* Slave addr = 0xCC: PMIC, Charger, Flash LED */
--
cgit v1.2.1
From 5cb5d9616a47d5383a85379afa4429382ef46b38 Mon Sep 17 00:00:00 2001
From: Micky Ching <micky_ching@realsil.com.cn>
Date: Fri, 10 Oct 2014 13:58:44 +0800
Subject: mfd: rtsx: Fix PM suspend for 5227 & 5249
Fix rts5227&5249 failed send buffer cmd after suspend,
PM_CTRL3 should reset before send any buffer cmd after suspend.
Otherwise, buffer cmd will failed, this will lead resume fail.
Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/rtsx_pci.h | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
index 74346d5e7899..1604dda4edcf 100644
--- a/include/linux/mfd/rtsx_pci.h
+++ b/include/linux/mfd/rtsx_pci.h
@@ -707,6 +707,14 @@
#define PM_CTRL1 0xFF44
#define PM_CTRL2 0xFF45
#define PM_CTRL3 0xFF46
+#define SDIO_SEND_PME_EN 0x80
+#define FORCE_RC_MODE_ON 0x40
+#define FORCE_RX50_LINK_ON 0x20
+#define D3_DELINK_MODE_EN 0x10
+#define USE_PESRTB_CTL_DELINK 0x08
+#define DELAY_PIN_WAKE 0x04
+#define RESET_PIN_WAKE 0x02
+#define PM_WAKE_EN 0x01
#define PM_CTRL4 0xFF47
/* Memory mapping */
@@ -752,6 +760,14 @@
#define PHY_DUM_REG 0x1F
#define LCTLR 0x80
+#define LCTLR_EXT_SYNC 0x80
+#define LCTLR_COMMON_CLOCK_CFG 0x40
+#define LCTLR_RETRAIN_LINK 0x20
+#define LCTLR_LINK_DISABLE 0x10
+#define LCTLR_RCB 0x08
+#define LCTLR_RESERVED 0x04
+#define LCTLR_ASPM_CTL_MASK 0x03
+
#define PCR_SETTING_REG1 0x724
#define PCR_SETTING_REG2 0x814
#define PCR_SETTING_REG3 0x747
@@ -967,4 +983,16 @@ static inline u8 *rtsx_pci_get_cmd_data(struct rtsx_pcr *pcr)
return (u8 *)(pcr->host_cmds_ptr);
}
+static inline int rtsx_pci_update_cfg_byte(struct rtsx_pcr *pcr, int addr,
+ u8 mask, u8 append)
+{
+ int err;
+ u8 val;
+
+ err = pci_read_config_byte(pcr->pci, addr, &val);
+ if (err < 0)
+ return err;
+ return pci_write_config_byte(pcr->pci, addr, (val & mask) | append);
+}
+
#endif
--
cgit v1.2.1
From 7d082baa349e59ce3de6452abc05e5de6436aad4 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 9 Oct 2014 09:18:38 -0700
Subject: mfd: ab8500-sysctrl: Drop ab8500_restart
ab8500_restart is not called from anywhere in the kernel, so drop it.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/abx500/ab8500-sysctrl.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mfd/abx500/ab8500-sysctrl.h b/include/linux/mfd/abx500/ab8500-sysctrl.h
index adba89d9c660..689312745b2f 100644
--- a/include/linux/mfd/abx500/ab8500-sysctrl.h
+++ b/include/linux/mfd/abx500/ab8500-sysctrl.h
@@ -12,7 +12,6 @@
int ab8500_sysctrl_read(u16 reg, u8 *value);
int ab8500_sysctrl_write(u16 reg, u8 mask, u8 value);
-void ab8500_restart(char mode, const char *cmd);
#else
--
cgit v1.2.1
From 47958c5ab4035bd91f05598f76a61cd9f7f2934c Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 4 Nov 2014 15:24:36 +0000
Subject: mfd: arizona: Document HP_CTRL_1L and HP_CTRL_1R registers
These registers are documented in the datasheet and used as part of the
extcon driver. Expose them properly through regmap as the datasheet
notes they should be treated as volatile do so.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
include/linux/mfd/arizona/registers.h | 42 +++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h
index c0b075f6bc35..d521f327b34f 100644
--- a/include/linux/mfd/arizona/registers.h
+++ b/include/linux/mfd/arizona/registers.h
@@ -125,6 +125,8 @@
#define ARIZONA_MIC_BIAS_CTRL_1 0x218
#define ARIZONA_MIC_BIAS_CTRL_2 0x219
#define ARIZONA_MIC_BIAS_CTRL_3 0x21A
+#define ARIZONA_HP_CTRL_1L 0x225
+#define ARIZONA_HP_CTRL_1R 0x226
#define ARIZONA_ACCESSORY_DETECT_MODE_1 0x293
#define ARIZONA_HEADPHONE_DETECT_1 0x29B
#define ARIZONA_HEADPHONE_DETECT_2 0x29C
@@ -2244,6 +2246,46 @@
#define ARIZONA_MICB3_ENA_SHIFT 0 /* MICB3_ENA */
#define ARIZONA_MICB3_ENA_WIDTH 1 /* MICB3_ENA */
+/*
+ * R549 (0x225) - HP Ctrl 1L
+ */
+#define ARIZONA_RMV_SHRT_HP1L 0x4000 /* RMV_SHRT_HP1L */
+#define ARIZONA_RMV_SHRT_HP1L_MASK 0x4000 /* RMV_SHRT_HP1L */
+#define ARIZONA_RMV_SHRT_HP1L_SHIFT 14 /* RMV_SHRT_HP1L */
+#define ARIZONA_RMV_SHRT_HP1L_WIDTH 1 /* RMV_SHRT_HP1L */
+#define ARIZONA_HP1L_FLWR 0x0004 /* HP1L_FLWR */
+#define ARIZONA_HP1L_FLWR_MASK 0x0004 /* HP1L_FLWR */
+#define ARIZONA_HP1L_FLWR_SHIFT 2 /* HP1L_FLWR */
+#define ARIZONA_HP1L_FLWR_WIDTH 1 /* HP1L_FLWR */
+#define ARIZONA_HP1L_SHRTI 0x0002 /* HP1L_SHRTI */
+#define ARIZONA_HP1L_SHRTI_MASK 0x0002 /* HP1L_SHRTI */
+#define ARIZONA_HP1L_SHRTI_SHIFT 1 /* HP1L_SHRTI */
+#define ARIZONA_HP1L_SHRTI_WIDTH 1 /* HP1L_SHRTI */
+#define ARIZONA_HP1L_SHRTO 0x0001 /* HP1L_SHRTO */
+#define ARIZONA_HP1L_SHRTO_MASK 0x0001 /* HP1L_SHRTO */
+#define ARIZONA_HP1L_SHRTO_SHIFT 0 /* HP1L_SHRTO */
+#define ARIZONA_HP1L_SHRTO_WIDTH 1 /* HP1L_SHRTO */
+
+/*
+ * R550 (0x226) - HP Ctrl 1R
+ */
+#define ARIZONA_RMV_SHRT_HP1R 0x4000 /* RMV_SHRT_HP1R */
+#define ARIZONA_RMV_SHRT_HP1R_MASK 0x4000 /* RMV_SHRT_HP1R */
+#define ARIZONA_RMV_SHRT_HP1R_SHIFT 14 /* RMV_SHRT_HP1R */
+#define ARIZONA_RMV_SHRT_HP1R_WIDTH 1 /* RMV_SHRT_HP1R */
+#define ARIZONA_HP1R_FLWR 0x0004 /* HP1R_FLWR */
+#define ARIZONA_HP1R_FLWR_MASK 0x0004 /* HP1R_FLWR */
+#define ARIZONA_HP1R_FLWR_SHIFT 2 /* HP1R_FLWR */
+#define ARIZONA_HP1R_FLWR_WIDTH 1 /* HP1R_FLWR */
+#define ARIZONA_HP1R_SHRTI 0x0002 /* HP1R_SHRTI */
+#define ARIZONA_HP1R_SHRTI_MASK 0x0002 /* HP1R_SHRTI */
+#define ARIZONA_HP1R_SHRTI_SHIFT 1 /* HP1R_SHRTI */
+#define ARIZONA_HP1R_SHRTI_WIDTH 1 /* HP1R_SHRTI */
+#define ARIZONA_HP1R_SHRTO 0x0001 /* HP1R_SHRTO */
+#define ARIZONA_HP1R_SHRTO_MASK 0x0001 /* HP1R_SHRTO */
+#define ARIZONA_HP1R_SHRTO_SHIFT 0 /* HP1R_SHRTO */
+#define ARIZONA_HP1R_SHRTO_WIDTH 1 /* HP1R_SHRTO */
+
/*
* R659 (0x293) - Accessory Detect Mode 1
*/
--
cgit v1.2.1
From 90f2d0f7bf069b1a2798156b7dcc8e7d1e874406 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 28 Oct 2014 11:06:56 +0100
Subject: mfd: tc3589x: get rid of static base
The TC3589x driver is now a device tree-only driver, so we want
only dynamic IRQs and GPIO numbers from the tc3589x, no static
assignments.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/mfd/tc3589x.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/mfd/tc3589x.h b/include/linux/mfd/tc3589x.h
index e6088c2e2092..e1c12d84c26a 100644
--- a/include/linux/mfd/tc3589x.h
+++ b/include/linux/mfd/tc3589x.h
@@ -164,13 +164,10 @@ struct tc3589x_keypad_platform_data {
/**
* struct tc3589x_gpio_platform_data - TC3589x GPIO platform data
- * @gpio_base: first gpio number assigned to TC3589x. A maximum of
- * %TC3589x_NR_GPIOS GPIOs will be allocated.
* @setup: callback for board-specific initialization
* @remove: callback for board-specific teardown
*/
struct tc3589x_gpio_platform_data {
- int gpio_base;
void (*setup)(struct tc3589x *tc3589x, unsigned gpio_base);
void (*remove)(struct tc3589x *tc3589x, unsigned gpio_base);
};
@@ -178,18 +175,13 @@ struct tc3589x_gpio_platform_data {
/**
* struct tc3589x_platform_data - TC3589x platform data
* @block: bitmask of blocks to enable (use TC3589x_BLOCK_*)
- * @irq_base: base IRQ number. %TC3589x_NR_IRQS irqs will be used.
* @gpio: GPIO-specific platform data
* @keypad: keypad-specific platform data
*/
struct tc3589x_platform_data {
unsigned int block;
- int irq_base;
struct tc3589x_gpio_platform_data *gpio;
const struct tc3589x_keypad_platform_data *keypad;
};
-#define TC3589x_NR_GPIOS 24
-#define TC3589x_NR_IRQS TC3589x_INT_GPIO(TC3589x_NR_GPIOS)
-
#endif
--
cgit v1.2.1
From 783f6fc4cecd770dfdb1418c7c890dbeb3bf3c91 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 4 Nov 2014 13:04:07 +0000
Subject: mfd: wm5110: Add missing registers for AIF2 channels 3-6
When the extra 4 channels were added to AIF2 the necessary frame control
registers were not given defaults and marked readable. This patch fixes
this.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
include/linux/mfd/arizona/registers.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h
index d521f327b34f..aacc10d7789c 100644
--- a/include/linux/mfd/arizona/registers.h
+++ b/include/linux/mfd/arizona/registers.h
@@ -281,8 +281,16 @@
#define ARIZONA_AIF2_FRAME_CTRL_2 0x548
#define ARIZONA_AIF2_FRAME_CTRL_3 0x549
#define ARIZONA_AIF2_FRAME_CTRL_4 0x54A
+#define ARIZONA_AIF2_FRAME_CTRL_5 0x54B
+#define ARIZONA_AIF2_FRAME_CTRL_6 0x54C
+#define ARIZONA_AIF2_FRAME_CTRL_7 0x54D
+#define ARIZONA_AIF2_FRAME_CTRL_8 0x54E
#define ARIZONA_AIF2_FRAME_CTRL_11 0x551
#define ARIZONA_AIF2_FRAME_CTRL_12 0x552
+#define ARIZONA_AIF2_FRAME_CTRL_13 0x553
+#define ARIZONA_AIF2_FRAME_CTRL_14 0x554
+#define ARIZONA_AIF2_FRAME_CTRL_15 0x555
+#define ARIZONA_AIF2_FRAME_CTRL_16 0x556
#define ARIZONA_AIF2_TX_ENABLES 0x559
#define ARIZONA_AIF2_RX_ENABLES 0x55A
#define ARIZONA_AIF2_FORCE_WRITE 0x55B
--
cgit v1.2.1
From cbd7584e6ead1b79fb0b81573f158b57fa1f0b49 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 25 Nov 2014 11:41:49 -0500
Subject: ext4: fix block reservation for bigalloc filesystems
For bigalloc filesystems we have to check whether newly requested inode
block isn't already part of a cluster for which we already have delayed
allocation reservation. This check happens in ext4_ext_map_blocks() and
that function sets EXT4_MAP_FROM_CLUSTER if that's the case. However if
ext4_da_map_blocks() finds in extent cache information about the block,
we don't call into ext4_ext_map_blocks() and thus we always end up
getting new reservation even if the space for cluster is already
reserved. This results in overreservation and premature ENOSPC reports.
Fix the problem by checking for existing cluster reservation already in
ext4_da_map_blocks(). That simplifies the logic and actually allows us
to get rid of the EXT4_MAP_FROM_CLUSTER flag completely.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
include/trace/events/ext4.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index ff4bd1b35246..bb7dcbe99652 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -50,8 +50,7 @@ struct extent_status;
{ EXT4_MAP_NEW, "N" }, \
{ EXT4_MAP_MAPPED, "M" }, \
{ EXT4_MAP_UNWRITTEN, "U" }, \
- { EXT4_MAP_BOUNDARY, "B" }, \
- { EXT4_MAP_FROM_CLUSTER, "C" })
+ { EXT4_MAP_BOUNDARY, "B" })
#define show_free_flags(flags) __print_flags(flags, "|", \
{ EXT4_FREE_BLOCKS_METADATA, "METADATA" }, \
--
cgit v1.2.1
From 2f8e0a7c6c89f850ebd5d6c0b9a08317030d1b89 Mon Sep 17 00:00:00 2001
From: Zheng Liu <wenqing.lz@taobao.com>
Date: Tue, 25 Nov 2014 11:44:37 -0500
Subject: ext4: cache extent hole in extent status tree for
ext4_da_map_blocks()
Currently extent status tree doesn't cache extent hole when a write
looks up in extent tree to make sure whether a block has been allocated
or not. In this case, we don't put extent hole in extent cache because
later this extent might be removed and a new delayed extent might be
added back. But it will cause a defect when we do a lot of writes. If
we don't put extent hole in extent cache, the following writes also need
to access extent tree to look at whether or not a block has been
allocated. It brings a cache miss. This commit fixes this defect.
Also if the inode doesn't have any extent, this extent hole will be
cached as well.
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
include/trace/events/ext4.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index bb7dcbe99652..cd37a584ee88 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -43,8 +43,7 @@ struct extent_status;
{ EXT4_GET_BLOCKS_METADATA_NOFAIL, "METADATA_NOFAIL" }, \
{ EXT4_GET_BLOCKS_NO_NORMALIZE, "NO_NORMALIZE" }, \
{ EXT4_GET_BLOCKS_KEEP_SIZE, "KEEP_SIZE" }, \
- { EXT4_GET_BLOCKS_NO_LOCK, "NO_LOCK" }, \
- { EXT4_GET_BLOCKS_NO_PUT_HOLE, "NO_PUT_HOLE" })
+ { EXT4_GET_BLOCKS_NO_LOCK, "NO_LOCK" })
#define show_mflags(flags) __print_flags(flags, "", \
{ EXT4_MAP_NEW, "N" }, \
--
cgit v1.2.1
From edaa53cac8fd4b96ed4b8f96c4933158ff2dd337 Mon Sep 17 00:00:00 2001
From: Zheng Liu <wenqing.lz@taobao.com>
Date: Tue, 25 Nov 2014 11:45:37 -0500
Subject: ext4: change LRU to round-robin in extent status tree shrinker
In this commit we discard the lru algorithm for inodes with extent
status tree because it takes significant effort to maintain a lru list
in extent status tree shrinker and the shrinker can take a long time to
scan this lru list in order to reclaim some objects.
We replace the lru ordering with a simple round-robin. After that we
never need to keep a lru list. That means that the list needn't be
sorted if the shrinker can not reclaim any objects in the first round.
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
include/trace/events/ext4.h | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index cd37a584ee88..6cfb841fea7c 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -2450,15 +2450,14 @@ TRACE_EVENT(ext4_collapse_range,
TRACE_EVENT(ext4_es_shrink,
TP_PROTO(struct super_block *sb, int nr_shrunk, u64 scan_time,
- int skip_precached, int nr_skipped, int retried),
+ int nr_skipped, int retried),
- TP_ARGS(sb, nr_shrunk, scan_time, skip_precached, nr_skipped, retried),
+ TP_ARGS(sb, nr_shrunk, scan_time, nr_skipped, retried),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( int, nr_shrunk )
__field( unsigned long long, scan_time )
- __field( int, skip_precached )
__field( int, nr_skipped )
__field( int, retried )
),
@@ -2467,16 +2466,14 @@ TRACE_EVENT(ext4_es_shrink,
__entry->dev = sb->s_dev;
__entry->nr_shrunk = nr_shrunk;
__entry->scan_time = div_u64(scan_time, 1000);
- __entry->skip_precached = skip_precached;
__entry->nr_skipped = nr_skipped;
__entry->retried = retried;
),
- TP_printk("dev %d,%d nr_shrunk %d, scan_time %llu skip_precached %d "
+ TP_printk("dev %d,%d nr_shrunk %d, scan_time %llu "
"nr_skipped %d retried %d",
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->nr_shrunk,
- __entry->scan_time, __entry->skip_precached,
- __entry->nr_skipped, __entry->retried)
+ __entry->scan_time, __entry->nr_skipped, __entry->retried)
);
#endif /* _TRACE_EXT4_H */
--
cgit v1.2.1
From e874bf5f7647a9fdf14d72dbb376ec95327e3a81 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 25 Nov 2014 21:41:03 +0100
Subject: ASoC: Disable regmap helpers if regmap is disabled
If regmap is disabled there will be no users of the ASoC regmap helpers.
Furthermore regmap_exit() will no be defined causing the following compile
error:
sound/soc/soc-core.c: In function 'snd_soc_component_exit_regmap':
sound/soc/soc-core.c:2645:2: error: implicit declaration of function
'regmap_exit' [-Werror=implicit-function-declaration]
So disable the helpers if regmap is disabled.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 20feb881988c ASoC: Add helper functions for deferred regmap setup")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 80ca937a20da..b53234835936 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1286,6 +1286,8 @@ void snd_soc_component_async_complete(struct snd_soc_component *component);
int snd_soc_component_test_bits(struct snd_soc_component *component,
unsigned int reg, unsigned int mask, unsigned int value);
+#ifdef CONFIG_REGMAP
+
void snd_soc_component_init_regmap(struct snd_soc_component *component,
struct regmap *regmap);
void snd_soc_component_exit_regmap(struct snd_soc_component *component);
@@ -1321,6 +1323,8 @@ static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec)
snd_soc_component_exit_regmap(&codec->component);
}
+#endif
+
/* device driver data */
static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
--
cgit v1.2.1
From edef1297f33a4546559d905457b435a5ea160bab Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Sat, 8 Nov 2014 20:15:09 -0500
Subject: SUNRPC: serialize iostats updates
Occasionally mountstats reports a negative retransmission rate.
Ensure that two RPCs completing concurrently don't confuse the sums
in the transport's op_metrics array.
Since pNFS filelayout can invoke rpc_count_iostats() on another
transport from xprt_release(), we can't rely on simply holding the
transport_lock in xprt_release(). There's nothing for it but hard
serialization. One spin lock per RPC operation should make this as
painless as it can be.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
include/linux/sunrpc/metrics.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/sunrpc/metrics.h b/include/linux/sunrpc/metrics.h
index 1565bbe86d51..eecb5a71e6c0 100644
--- a/include/linux/sunrpc/metrics.h
+++ b/include/linux/sunrpc/metrics.h
@@ -27,10 +27,13 @@
#include <linux/seq_file.h>
#include <linux/ktime.h>
+#include <linux/spinlock.h>
#define RPC_IOSTATS_VERS "1.0"
struct rpc_iostats {
+ spinlock_t om_lock;
+
/*
* These counters give an idea about how many request
* transmissions are required, on average, to complete that
--
cgit v1.2.1
From f4ac1674f5da420ef17896f0f222c5215ebcde80 Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Tue, 25 Nov 2014 13:18:15 -0500
Subject: nfs: Add ALLOCATE support
This patch adds support for using the NFS v4.2 operation ALLOCATE to
preallocate data in a file.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs4.h | 1 +
include/linux/nfs_fs_sb.h | 1 +
include/linux/nfs_xdr.h | 14 ++++++++++++++
3 files changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 356acc2846fd..2b28a21edcd0 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -490,6 +490,7 @@ enum {
/* nfs42 */
NFSPROC4_CLNT_SEEK,
+ NFSPROC4_CLNT_ALLOCATE,
};
/* nfs41 types */
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index a32ba0d7a98f..df6ed429b406 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -231,5 +231,6 @@ struct nfs_server {
#define NFS_CAP_ATOMIC_OPEN_V1 (1U << 17)
#define NFS_CAP_SECURITY_LABEL (1U << 18)
#define NFS_CAP_SEEK (1U << 19)
+#define NFS_CAP_ALLOCATE (1U << 20)
#endif
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 47ebb4fafd87..467c84efb596 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1243,6 +1243,20 @@ nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
#endif /* CONFIG_NFS_V4_1 */
#ifdef CONFIG_NFS_V4_2
+struct nfs42_falloc_args {
+ struct nfs4_sequence_args seq_args;
+
+ struct nfs_fh *falloc_fh;
+ nfs4_stateid falloc_stateid;
+ u64 falloc_offset;
+ u64 falloc_length;
+};
+
+struct nfs42_falloc_res {
+ struct nfs4_sequence_res seq_res;
+ unsigned int status;
+};
+
struct nfs42_seek_args {
struct nfs4_sequence_args seq_args;
--
cgit v1.2.1
From 624bd5b7b683c978c6d5f4e9f6142cfb3470983d Mon Sep 17 00:00:00 2001
From: Anna Schumaker <Anna.Schumaker@netapp.com>
Date: Tue, 25 Nov 2014 13:18:16 -0500
Subject: nfs: Add DEALLOCATE support
This patch adds support for using the NFS v4.2 operation DEALLOCATE to
punch holes in a file.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/nfs4.h | 1 +
include/linux/nfs_fs_sb.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 2b28a21edcd0..022b761dbf0a 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -491,6 +491,7 @@ enum {
/* nfs42 */
NFSPROC4_CLNT_SEEK,
NFSPROC4_CLNT_ALLOCATE,
+ NFSPROC4_CLNT_DEALLOCATE,
};
/* nfs41 types */
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index df6ed429b406..1e37fbb78f7a 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -232,5 +232,6 @@ struct nfs_server {
#define NFS_CAP_SECURITY_LABEL (1U << 18)
#define NFS_CAP_SEEK (1U << 19)
#define NFS_CAP_ALLOCATE (1U << 20)
+#define NFS_CAP_DEALLOCATE (1U << 21)
#endif
--
cgit v1.2.1
From c362effe5cda4df02aa7670d58636ea73979e304 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Tue, 25 Nov 2014 12:14:48 +0100
Subject: ASoC: Remove 'const' from the device_node pointers
As Russell King's explained it, there should not be pointers to
struct device_node:
"struct device_node is a ref-counted structure. That means if you
store a reference to it, you should "get" it, and you should "put"
it once you've done. The act of "put"ing the pointed-to structure
involves writing to that structure, so it is totally unappropriate
to store a device_node structure as a const pointer. It forces you
to have to cast it back to a non-const pointer at various points
in time to use various OF function calls."
[This isn't quite the application here, we're not geting or putting the
pointer though we did add some other users who call non-const OF
functions -- broonie]
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/soc.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/sound/soc.h b/include/sound/soc.h
index edbb07ba4cb5..d1f3dac91b3e 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -881,7 +881,7 @@ struct snd_soc_platform_driver {
struct snd_soc_dai_link_component {
const char *name;
- const struct device_node *of_node;
+ struct device_node *of_node;
const char *dai_name;
};
@@ -983,7 +983,7 @@ struct snd_soc_codec_conf {
* DT/OF node, but not both.
*/
const char *dev_name;
- const struct device_node *of_node;
+ struct device_node *of_node;
/*
* optional map of kcontrol, widget and path name prefixes that are
@@ -1000,7 +1000,7 @@ struct snd_soc_aux_dev {
* DT/OF node, but not both.
*/
const char *codec_name;
- const struct device_node *codec_of_node;
+ struct device_node *codec_of_node;
/* codec/machine specific init - e.g. add machine controls */
int (*init)(struct snd_soc_component *component);
--
cgit v1.2.1
From bccac16eeaa8c2428981891d09380672b229f48b Mon Sep 17 00:00:00 2001
From: Sudeep Holla <Sudeep.Holla@arm.com>
Date: Tue, 25 Nov 2014 14:48:49 +0000
Subject: ACPI / processor: remove unused variabled from acpi_processor_power
structure
Few elements in the acpi_processor_power structure are unused. It could
be remnant in the header missed while the code got removed from the
corresponding driver file.
This patch removes those unused variables in the structure declaration.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/processor.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index cbb6cd3a98d7..3ca9b751f122 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -67,9 +67,6 @@ struct acpi_processor_cx {
};
struct acpi_processor_power {
- struct acpi_processor_cx *state;
- unsigned long bm_check_timestamp;
- u32 default_state;
int count;
struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
int timer_broadcast_on_state;
--
cgit v1.2.1
From 3ffb1a8193bead7bf4ef0fec2dae050c70e4c1c1 Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@gmail.com>
Date: Wed, 12 Nov 2014 12:53:59 -0800
Subject: serial: core: Add big-endian iotype
Since most drivers interpret UPIO_MEM32 to mean "little-endian" and use
readl/writel to access the registers, add a parallel UPIO_MEM32BE to
request the use of big-endian MMIO accessors (ioread32be/iowrite32be).
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/serial_core.h | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 3231a43f6acf..057038cf2788 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -142,12 +142,13 @@ struct uart_port {
unsigned char iotype; /* io access style */
unsigned char unused1;
-#define UPIO_PORT (0)
-#define UPIO_HUB6 (1)
-#define UPIO_MEM (2)
-#define UPIO_MEM32 (3)
-#define UPIO_AU (4) /* Au1x00 and RT288x type IO */
-#define UPIO_TSI (5) /* Tsi108/109 type IO */
+#define UPIO_PORT (0) /* 8b I/O port access */
+#define UPIO_HUB6 (1) /* Hub6 ISA card */
+#define UPIO_MEM (2) /* 8b MMIO access */
+#define UPIO_MEM32 (3) /* 32b little endian */
+#define UPIO_MEM32BE (4) /* 32b big endian */
+#define UPIO_AU (5) /* Au1x00 and RT288x type IO */
+#define UPIO_TSI (6) /* Tsi108/109 type IO */
unsigned int read_status_mask; /* driver specific */
unsigned int ignore_status_mask; /* driver specific */
--
cgit v1.2.1
From 641519cb61bc766c3b4a70fd9ef14fc9509bf8bf Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Tue, 4 Nov 2014 11:32:45 -0800
Subject: mtd: nand: add ATO manufacturer info
Tested with ATO AFND1G08U3, 128MiB NAND.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
include/linux/mtd/nand.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index b14d190b593a..3d4ea7eb2b68 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -736,6 +736,7 @@ struct nand_chip {
#define NAND_MFR_EON 0x92
#define NAND_MFR_SANDISK 0x45
#define NAND_MFR_INTEL 0x89
+#define NAND_MFR_ATO 0x9b
/* The maximum expected count of bytes in the NAND ID sequence */
#define NAND_MAX_ID_LEN 8
--
cgit v1.2.1
From eee47538ec1f26198cf5da675975b61d7f16135b Mon Sep 17 00:00:00 2001
From: Gregory CLEMENT <gregory.clement@free-electrons.com>
Date: Thu, 13 Nov 2014 12:47:46 +0100
Subject: phy: add support for USB cluster on the Armada 375 SoC
The Armada 375 SoC comes with an USB2 host and device controller and
an USB3 controller. The USB cluster control register allows to manage
common features of both USB controllers.
This commit adds a driver integrated in the generic PHY framework to
control this USB cluster feature.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[ kishon@ti.com : Made it to use the updated devm_phy_create API and
soem cosmentic changes in Kconfig file.]
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
---
include/dt-bindings/phy/phy.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/dt-bindings/phy/phy.h b/include/dt-bindings/phy/phy.h
index e8c6a3f04b85..6c901930eb3e 100644
--- a/include/dt-bindings/phy/phy.h
+++ b/include/dt-bindings/phy/phy.h
@@ -10,6 +10,7 @@
#ifndef _DT_BINDINGS_PHY
#define _DT_BINDINGS_PHY
+#define PHY_NONE 0
#define PHY_TYPE_SATA 1
#define PHY_TYPE_PCIE 2
#define PHY_TYPE_USB2 3
--
cgit v1.2.1
From 4f4f85fa0b96a35429ebb4bc278d70ae0f72113c Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 29 Jul 2014 10:17:53 +0200
Subject: clk: tegra: Implement memory-controller clock
The memory controller clock runs either at half or the same frequency as
the EMC clock.
Reviewed-By: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/dt-bindings/clock/tegra114-car.h | 2 +-
include/dt-bindings/clock/tegra124-car.h | 2 +-
include/dt-bindings/clock/tegra20-car.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/clock/tegra114-car.h b/include/dt-bindings/clock/tegra114-car.h
index fc12621fb432..534c03f8ad72 100644
--- a/include/dt-bindings/clock/tegra114-car.h
+++ b/include/dt-bindings/clock/tegra114-car.h
@@ -49,7 +49,7 @@
#define TEGRA114_CLK_I2S0 30
/* 31 */
-/* 32 */
+#define TEGRA114_CLK_MC 32
/* 33 */
#define TEGRA114_CLK_APBDMA 34
/* 35 */
diff --git a/include/dt-bindings/clock/tegra124-car.h b/include/dt-bindings/clock/tegra124-car.h
index 6bac637fd635..af9bc9a3ddbc 100644
--- a/include/dt-bindings/clock/tegra124-car.h
+++ b/include/dt-bindings/clock/tegra124-car.h
@@ -48,7 +48,7 @@
#define TEGRA124_CLK_I2S0 30
/* 31 */
-/* 32 */
+#define TEGRA124_CLK_MC 32
/* 33 */
#define TEGRA124_CLK_APBDMA 34
/* 35 */
diff --git a/include/dt-bindings/clock/tegra20-car.h b/include/dt-bindings/clock/tegra20-car.h
index 9406207cfac8..04500b243a4d 100644
--- a/include/dt-bindings/clock/tegra20-car.h
+++ b/include/dt-bindings/clock/tegra20-car.h
@@ -49,7 +49,7 @@
/* 30 */
#define TEGRA20_CLK_CACHE2 31
-#define TEGRA20_CLK_MEM 32
+#define TEGRA20_CLK_MC 32
#define TEGRA20_CLK_AHBDMA 33
#define TEGRA20_CLK_APBDMA 34
/* 35 */
--
cgit v1.2.1
From 5b97f49d653d366d8cb03cab40f8c45eb59dc70c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 26 Nov 2014 12:37:43 +0100
Subject: cfg80211: refactor the various CQM event sending code
Much of the code can be shared by moving it into helper functions
for the CQM event sending.
Also move the code closer together, even in the header file.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 54 +++++++++++++++++++++++++-------------------------
1 file changed, 27 insertions(+), 27 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index bb748c4da5af..1d15f1dfdaa7 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4642,33 +4642,6 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
enum nl80211_cqm_rssi_threshold_event rssi_event,
gfp_t gfp);
-/**
- * cfg80211_radar_event - radar detection event
- * @wiphy: the wiphy
- * @chandef: chandef for the current channel
- * @gfp: context flags
- *
- * This function is called when a radar is detected on the current chanenl.
- */
-void cfg80211_radar_event(struct wiphy *wiphy,
- struct cfg80211_chan_def *chandef, gfp_t gfp);
-
-/**
- * cfg80211_cac_event - Channel availability check (CAC) event
- * @netdev: network device
- * @chandef: chandef for the current channel
- * @event: type of event
- * @gfp: context flags
- *
- * This function is called when a Channel availability check (CAC) is finished
- * or aborted. This must be called to notify the completion of a CAC process,
- * also by full-MAC drivers.
- */
-void cfg80211_cac_event(struct net_device *netdev,
- const struct cfg80211_chan_def *chandef,
- enum nl80211_radar_event event, gfp_t gfp);
-
-
/**
* cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
* @dev: network device
@@ -4696,6 +4669,33 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
+/**
+ * cfg80211_radar_event - radar detection event
+ * @wiphy: the wiphy
+ * @chandef: chandef for the current channel
+ * @gfp: context flags
+ *
+ * This function is called when a radar is detected on the current chanenl.
+ */
+void cfg80211_radar_event(struct wiphy *wiphy,
+ struct cfg80211_chan_def *chandef, gfp_t gfp);
+
+/**
+ * cfg80211_cac_event - Channel availability check (CAC) event
+ * @netdev: network device
+ * @chandef: chandef for the current channel
+ * @event: type of event
+ * @gfp: context flags
+ *
+ * This function is called when a Channel availability check (CAC) is finished
+ * or aborted. This must be called to notify the completion of a CAC process,
+ * also by full-MAC drivers.
+ */
+void cfg80211_cac_event(struct net_device *netdev,
+ const struct cfg80211_chan_def *chandef,
+ enum nl80211_radar_event event, gfp_t gfp);
+
+
/**
* cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
* @dev: network device
--
cgit v1.2.1
From 9b8ffea6efb0d0edcac265a1ca422188fc1b6dfb Mon Sep 17 00:00:00 2001
From: Vincent Wan <vincent.wan@amd.com>
Date: Wed, 5 Nov 2014 14:09:00 +0800
Subject: mmc: sdhci: Add a quirk for AMD SDHC transfer mode register need to
be cleared for cmd without data
SDHC controller in AMD chipsets require SDHC transfer mode
register to be cleared for commands without data. The issue was
uncovered during testing eMMC cards on KB/ML based platforms
Signed-off-by: Vincent Wan <vincent.wan@amd.com>
Signed-off-by: Wan Zongshun <mcuos.com@gmail.com>
Signed-off-by: Arindam Nath <arindam.nath@amd.com>
Tested-by: Vikram B <vikram.b@amd.com>
Tested-by: Raghavendra Swamy <raghavendra.swamy@amd.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdhci.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 931ac5e05453..ae7f357b78c9 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -102,6 +102,8 @@ struct sdhci_host {
#define SDHCI_QUIRK2_STOP_WITH_TC (1<<8)
/* Controller does not support 64-bit DMA */
#define SDHCI_QUIRK2_BROKEN_64_BIT_DMA (1<<9)
+/* need clear transfer mode register before send cmd */
+#define SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD (1<<10)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
--
cgit v1.2.1
From 69d99fdcfd7815dfb2318f0777a46181d5bf42dc Mon Sep 17 00:00:00 2001
From: Prabu Thangamuthu <Prabu.T@synopsys.com>
Date: Mon, 20 Oct 2014 07:12:33 +0000
Subject: mmc: dw_mmc: Add IDMAC 64-bit address mode support
Synopsys DW_MMC IP core supports Internal DMA Controller with 64-bit address mode from IP version 2.70a onwards.
Updated the driver to support IDMAC 64-bit addressing mode.
Signed-off-by: Prabu Thangamuthu <prabu.t@synopsys.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/dw_mmc.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 69d08144cfad..0a551152d600 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -54,6 +54,7 @@ struct mmc_data;
* transfer is in progress.
* @use_dma: Whether DMA channel is initialized or not.
* @using_dma: Whether DMA is in use for the current transfer.
+ * @dma_64bit_address: Whether DMA supports 64-bit address mode or not.
* @sg_dma: Bus address of DMA buffer.
* @sg_cpu: Virtual address of DMA buffer.
* @dma_ops: Pointer to platform-specific DMA callbacks.
@@ -139,6 +140,7 @@ struct dw_mci {
/* DMA interface members*/
int use_dma;
int using_dma;
+ int dma_64bit_address;
dma_addr_t sg_dma;
void *sg_cpu;
--
cgit v1.2.1
From 549c0b18485d10bb419a81b24efe719df75089bd Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Thu, 6 Nov 2014 15:19:05 +0200
Subject: mmc: sdhci: Clear also HS400 1.2V capability if 1.2V is not supported
1.2V HS200 mode capability is cleared if there is not a voltage
regulator that supports 1.2V. Do the same for 1.2V HS400 mode.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/host.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index df0c15396bbf..9f322706f7cb 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -289,6 +289,7 @@ struct mmc_host {
#define MMC_CAP2_HS400_1_2V (1 << 16) /* Can support HS400 1.2V */
#define MMC_CAP2_HS400 (MMC_CAP2_HS400_1_8V | \
MMC_CAP2_HS400_1_2V)
+#define MMC_CAP2_HSX00_1_2V (MMC_CAP2_HS200_1_2V_SDR | MMC_CAP2_HS400_1_2V)
#define MMC_CAP2_SDIO_IRQ_NOTHREAD (1 << 17)
mmc_pm_flag_t pm_caps; /* supported pm features */
--
cgit v1.2.1
From e9fb05d5bca7428f2749d059559e9657c710fe53 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Thu, 6 Nov 2014 15:19:06 +0200
Subject: mmc: sdhci: Add HS400 support to SDHCI driver
MMC core already has support for HS400. Add HS400
support to SDHCI driver. The SDHC Standard specification
does not define HS400 so consequently HS400 support is
non-standard. However HS400 is not selected without
the host controller setting the corresponding capability
flags so host controllers not yet supporting HS400
will not be affected. To support that, a quirk
SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 is introduced to
enable the use of capabilities register reserved bit-63
to indicate HS400 support.
Because HS400 is non-standard for SDHCI, it is possible
that different vendors will do things in different ways.
However HS200 support faced the same issue but currently
there is only one solution. As such, no attempt has
been made to provide for alternate HS400 solutions except
for SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/sdhci.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index ae7f357b78c9..375af80bde7d 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -104,6 +104,8 @@ struct sdhci_host {
#define SDHCI_QUIRK2_BROKEN_64_BIT_DMA (1<<9)
/* need clear transfer mode register before send cmd */
#define SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD (1<<10)
+/* Capability register bit-63 indicates HS400 support */
+#define SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 (1<<11)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
--
cgit v1.2.1
From 551434389074791da30b7afbf44c4bbe9b8b0116 Mon Sep 17 00:00:00 2001
From: Andreas Fenkart <afenkart@gmail.com>
Date: Sat, 8 Nov 2014 15:33:09 +0100
Subject: ARM: OMAP1/2+: MMC: separate platform data for mmc and mmc hs driver
- omap mmc driver supports multiplexing, omap_mmc_hs doesn't
this leads to one of the major confusions in the omap_hsmmc driver
- platform data should be read-only for the driver
most callbacks are not set by the omap3 platform init code while still
required. So they are set from the driver probe function, which is against
the paradigm that platform-data should not be modified by the driver
typical examples are card_detect, read_only callbacks
un-bundling by searching for driver name \"omap_hsmmc in the
arch/arm folder. omap_hsmmc_platform_data is not initialized directly,
but from omap2_hsmmc_info, which is defined in a separate header file
not touched by this patch
hwmod includes platform headers to declare features of the platform. All
the declared features are prefixed OMAP_HSMMC. There is no need to
include platform header from hwmod other except for feature defines
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/platform_data/hsmmc-omap.h | 149 +++++++++++++++++++++++++++++++
include/linux/platform_data/mmc-omap.h | 27 ------
2 files changed, 149 insertions(+), 27 deletions(-)
create mode 100644 include/linux/platform_data/hsmmc-omap.h
(limited to 'include')
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
new file mode 100644
index 000000000000..7dd42e54a587
--- /dev/null
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -0,0 +1,149 @@
+/*
+ * MMC definitions for OMAP2
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define OMAP_HSMMC_MAX_SLOTS 1
+
+/*
+ * struct omap_hsmmc_dev_attr.flags possibilities
+ *
+ * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
+ * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
+ * should be set if this is the case. See for example Section 22.5.3
+ * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
+ * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
+ *
+ * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
+ * don't work correctly on some MMC controller instances on some
+ * OMAP3 SoCs; this flag should be set if this is the case. See
+ * for example Advisory 2.1.1.128 "MMC: Multiple Block Read
+ * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
+ * Revision F (October 2010) (SPRZ278F).
+ */
+#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
+#define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1)
+#define OMAP_HSMMC_SWAKEUP_MISSING BIT(2)
+
+struct omap_hsmmc_dev_attr {
+ u8 flags;
+};
+
+struct mmc_card;
+
+struct omap_hsmmc_platform_data {
+ /* back-link to device */
+ struct device *dev;
+
+ /* number of slots per controller */
+ unsigned nr_slots:2;
+
+ /* set if your board has components or wiring that limits the
+ * maximum frequency on the MMC bus */
+ unsigned int max_freq;
+
+ /* switch the bus to a new slot */
+ int (*switch_slot)(struct device *dev, int slot);
+ /* initialize board-specific MMC functionality, can be NULL if
+ * not supported */
+ int (*init)(struct device *dev);
+ void (*cleanup)(struct device *dev);
+ void (*shutdown)(struct device *dev);
+
+ /* To handle board related suspend/resume functionality for MMC */
+ int (*suspend)(struct device *dev, int slot);
+ int (*resume)(struct device *dev, int slot);
+
+ /* Return context loss count due to PM states changing */
+ int (*get_context_loss_count)(struct device *dev);
+
+ /* Integrating attributes from the omap_hwmod layer */
+ u8 controller_flags;
+
+ /* Register offset deviation */
+ u16 reg_offset;
+
+ struct omap_hsmmc_slot_data {
+ /*
+ * 4/8 wires and any additional host capabilities
+ * need to OR'd all capabilities (ref. linux/mmc/host.h)
+ */
+ u8 wires; /* Used for the MMC driver on omap1 and 2420 */
+ u32 caps; /* Used for the MMC driver on 2430 and later */
+ u32 pm_caps; /* PM capabilities of the mmc */
+
+ /*
+ * nomux means "standard" muxing is wrong on this board, and
+ * that board-specific code handled it before common init logic.
+ */
+ unsigned nomux:1;
+
+ /* switch pin can be for card detect (default) or card cover */
+ unsigned cover:1;
+
+ /* use the internal clock */
+ unsigned internal_clock:1;
+
+ /* nonremovable e.g. eMMC */
+ unsigned nonremovable:1;
+
+ /* Try to sleep or power off when possible */
+ unsigned power_saving:1;
+
+ /* If using power_saving and the MMC power is not to go off */
+ unsigned no_off:1;
+
+ /* eMMC does not handle power off when not in sleep state */
+ unsigned no_regulator_off_init:1;
+
+ /* Regulator off remapped to sleep */
+ unsigned vcc_aux_disable_is_sleep:1;
+
+ /* we can put the features above into this variable */
+#define HSMMC_HAS_PBIAS (1 << 0)
+#define HSMMC_HAS_UPDATED_RESET (1 << 1)
+#define HSMMC_HAS_HSPE_SUPPORT (1 << 2)
+ unsigned features;
+
+ int switch_pin; /* gpio (card detect) */
+ int gpio_wp; /* gpio (write protect) */
+
+ int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
+ int (*set_power)(struct device *dev, int slot,
+ int power_on, int vdd);
+ int (*get_ro)(struct device *dev, int slot);
+ void (*remux)(struct device *dev, int slot, int power_on);
+ /* Call back before enabling / disabling regulators */
+ void (*before_set_reg)(struct device *dev, int slot,
+ int power_on, int vdd);
+ /* Call back after enabling / disabling regulators */
+ void (*after_set_reg)(struct device *dev, int slot,
+ int power_on, int vdd);
+ /* if we have special card, init it using this callback */
+ void (*init_card)(struct mmc_card *card);
+
+ /* return MMC cover switch state, can be NULL if not supported.
+ *
+ * possible return values:
+ * 0 - closed
+ * 1 - open
+ */
+ int (*get_cover_state)(struct device *dev, int slot);
+
+ const char *name;
+ u32 ocr_mask;
+
+ /* Card detection IRQs */
+ int card_detect_irq;
+
+ int (*card_detect)(struct device *dev, int slot);
+
+ unsigned int ban_openended:1;
+
+ } slots[OMAP_HSMMC_MAX_SLOTS];
+};
diff --git a/include/linux/platform_data/mmc-omap.h b/include/linux/platform_data/mmc-omap.h
index 51e70cf25cbc..5c188f4e9bec 100644
--- a/include/linux/platform_data/mmc-omap.h
+++ b/include/linux/platform_data/mmc-omap.h
@@ -10,32 +10,8 @@
#define OMAP_MMC_MAX_SLOTS 2
-/*
- * struct omap_mmc_dev_attr.flags possibilities
- *
- * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
- * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
- * should be set if this is the case. See for example Section 22.5.3
- * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
- * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
- *
- * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
- * don't work correctly on some MMC controller instances on some
- * OMAP3 SoCs; this flag should be set if this is the case. See
- * for example Advisory 2.1.1.128 "MMC: Multiple Block Read
- * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
- * Revision F (October 2010) (SPRZ278F).
- */
-#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
-#define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1)
-#define OMAP_HSMMC_SWAKEUP_MISSING BIT(2)
-
struct mmc_card;
-struct omap_mmc_dev_attr {
- u8 flags;
-};
-
struct omap_mmc_platform_data {
/* back-link to device */
struct device *dev;
@@ -106,9 +82,6 @@ struct omap_mmc_platform_data {
unsigned vcc_aux_disable_is_sleep:1;
/* we can put the features above into this variable */
-#define HSMMC_HAS_PBIAS (1 << 0)
-#define HSMMC_HAS_UPDATED_RESET (1 << 1)
-#define HSMMC_HAS_HSPE_SUPPORT (1 << 2)
#define MMC_OMAP7XX (1 << 3)
#define MMC_OMAP15XX (1 << 4)
#define MMC_OMAP16XX (1 << 5)
--
cgit v1.2.1
From a74fecdf795e1d219fcdb6470b6a0709ff7e3e76 Mon Sep 17 00:00:00 2001
From: Andreas Fenkart <afenkart@gmail.com>
Date: Sat, 8 Nov 2014 15:33:10 +0100
Subject: mmc: omap_hsmmc: remove unused fields in platform_data
platform data is built from omap2_hsmmc_info, remove all fields that
are never set in omap_hsmmc_info, hence never copied to platform data.
Note that the omap_hsmmc driver is not affected by this patch those
fields were completely unused.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/platform_data/hsmmc-omap.h | 19 -------------------
1 file changed, 19 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 7dd42e54a587..11d7ed99603f 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -73,16 +73,9 @@ struct omap_hsmmc_platform_data {
* 4/8 wires and any additional host capabilities
* need to OR'd all capabilities (ref. linux/mmc/host.h)
*/
- u8 wires; /* Used for the MMC driver on omap1 and 2420 */
u32 caps; /* Used for the MMC driver on 2430 and later */
u32 pm_caps; /* PM capabilities of the mmc */
- /*
- * nomux means "standard" muxing is wrong on this board, and
- * that board-specific code handled it before common init logic.
- */
- unsigned nomux:1;
-
/* switch pin can be for card detect (default) or card cover */
unsigned cover:1;
@@ -92,18 +85,9 @@ struct omap_hsmmc_platform_data {
/* nonremovable e.g. eMMC */
unsigned nonremovable:1;
- /* Try to sleep or power off when possible */
- unsigned power_saving:1;
-
- /* If using power_saving and the MMC power is not to go off */
- unsigned no_off:1;
-
/* eMMC does not handle power off when not in sleep state */
unsigned no_regulator_off_init:1;
- /* Regulator off remapped to sleep */
- unsigned vcc_aux_disable_is_sleep:1;
-
/* we can put the features above into this variable */
#define HSMMC_HAS_PBIAS (1 << 0)
#define HSMMC_HAS_UPDATED_RESET (1 << 1)
@@ -142,8 +126,5 @@ struct omap_hsmmc_platform_data {
int card_detect_irq;
int (*card_detect)(struct device *dev, int slot);
-
- unsigned int ban_openended:1;
-
} slots[OMAP_HSMMC_MAX_SLOTS];
};
--
cgit v1.2.1
From bb09d15114a55ae050f5315f2dfd6d1c989ecacd Mon Sep 17 00:00:00 2001
From: Andreas Fenkart <afenkart@gmail.com>
Date: Sat, 8 Nov 2014 15:33:11 +0100
Subject: mmc: omap_hsmmc: remove un-initialized callbacks from platform data
these callbacks are not set, probably legacy omap 1/2 features
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/platform_data/hsmmc-omap.h | 9 ---------
1 file changed, 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 11d7ed99603f..7e70e15154e4 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -47,14 +47,6 @@ struct omap_hsmmc_platform_data {
* maximum frequency on the MMC bus */
unsigned int max_freq;
- /* switch the bus to a new slot */
- int (*switch_slot)(struct device *dev, int slot);
- /* initialize board-specific MMC functionality, can be NULL if
- * not supported */
- int (*init)(struct device *dev);
- void (*cleanup)(struct device *dev);
- void (*shutdown)(struct device *dev);
-
/* To handle board related suspend/resume functionality for MMC */
int (*suspend)(struct device *dev, int slot);
int (*resume)(struct device *dev, int slot);
@@ -97,7 +89,6 @@ struct omap_hsmmc_platform_data {
int switch_pin; /* gpio (card detect) */
int gpio_wp; /* gpio (write protect) */
- int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
int (*set_power)(struct device *dev, int slot,
int power_on, int vdd);
int (*get_ro)(struct device *dev, int slot);
--
cgit v1.2.1
From df206c313987bff595d2199f3bbf9b160e666b32 Mon Sep 17 00:00:00 2001
From: Andreas Fenkart <afenkart@gmail.com>
Date: Sat, 8 Nov 2014 15:33:13 +0100
Subject: mmc: omap_hsmmc: remove unused get_context_loss_count callback
trigger of this callback has been removed in 0a82e06e6183
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/platform_data/hsmmc-omap.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 7e70e15154e4..35d494f7d62f 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -51,9 +51,6 @@ struct omap_hsmmc_platform_data {
int (*suspend)(struct device *dev, int slot);
int (*resume)(struct device *dev, int slot);
- /* Return context loss count due to PM states changing */
- int (*get_context_loss_count)(struct device *dev);
-
/* Integrating attributes from the omap_hwmod layer */
u8 controller_flags;
--
cgit v1.2.1
From 326119c9923711d782e71e197429b1bab16125e1 Mon Sep 17 00:00:00 2001
From: Andreas Fenkart <afenkart@gmail.com>
Date: Sat, 8 Nov 2014 15:33:14 +0100
Subject: mmc: omap_hsmmc: remove unnecessary omap_hsmmc_slot_data indirection
omap_hsmmc supports only one slot per controller, see OMAP_MMC_MAX_SLOTS.
This unnecessary indirection leads to confusion in the omap_hsmmc driver.
For example the card_detect callback is not installed by platform code
but from the driver probe function. So it should be a field of
omap_hsmmc_host. But since it is declared under the platform slot while
the drivers struct omap_hsmmc_host has no slot abstraction, this looks
like a bug, especially when not familiar that this driver only supports
1 slot anyway.
Either we should add a slot abstraction to omap_hsmmc_host or remove
it from the platform data struct. Removed since slot multiplexing is
an un-implemented feature
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/platform_data/hsmmc-omap.h | 100 +++++++++++++++----------------
1 file changed, 48 insertions(+), 52 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 35d494f7d62f..26912143adc0 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -8,8 +8,6 @@
* published by the Free Software Foundation.
*/
-#define OMAP_HSMMC_MAX_SLOTS 1
-
/*
* struct omap_hsmmc_dev_attr.flags possibilities
*
@@ -57,62 +55,60 @@ struct omap_hsmmc_platform_data {
/* Register offset deviation */
u16 reg_offset;
- struct omap_hsmmc_slot_data {
- /*
- * 4/8 wires and any additional host capabilities
- * need to OR'd all capabilities (ref. linux/mmc/host.h)
- */
- u32 caps; /* Used for the MMC driver on 2430 and later */
- u32 pm_caps; /* PM capabilities of the mmc */
+ /*
+ * 4/8 wires and any additional host capabilities
+ * need to OR'd all capabilities (ref. linux/mmc/host.h)
+ */
+ u32 caps; /* Used for the MMC driver on 2430 and later */
+ u32 pm_caps; /* PM capabilities of the mmc */
- /* switch pin can be for card detect (default) or card cover */
- unsigned cover:1;
+ /* switch pin can be for card detect (default) or card cover */
+ unsigned cover:1;
- /* use the internal clock */
- unsigned internal_clock:1;
+ /* use the internal clock */
+ unsigned internal_clock:1;
- /* nonremovable e.g. eMMC */
- unsigned nonremovable:1;
+ /* nonremovable e.g. eMMC */
+ unsigned nonremovable:1;
- /* eMMC does not handle power off when not in sleep state */
- unsigned no_regulator_off_init:1;
+ /* eMMC does not handle power off when not in sleep state */
+ unsigned no_regulator_off_init:1;
- /* we can put the features above into this variable */
+ /* we can put the features above into this variable */
#define HSMMC_HAS_PBIAS (1 << 0)
#define HSMMC_HAS_UPDATED_RESET (1 << 1)
#define HSMMC_HAS_HSPE_SUPPORT (1 << 2)
- unsigned features;
-
- int switch_pin; /* gpio (card detect) */
- int gpio_wp; /* gpio (write protect) */
-
- int (*set_power)(struct device *dev, int slot,
- int power_on, int vdd);
- int (*get_ro)(struct device *dev, int slot);
- void (*remux)(struct device *dev, int slot, int power_on);
- /* Call back before enabling / disabling regulators */
- void (*before_set_reg)(struct device *dev, int slot,
- int power_on, int vdd);
- /* Call back after enabling / disabling regulators */
- void (*after_set_reg)(struct device *dev, int slot,
- int power_on, int vdd);
- /* if we have special card, init it using this callback */
- void (*init_card)(struct mmc_card *card);
-
- /* return MMC cover switch state, can be NULL if not supported.
- *
- * possible return values:
- * 0 - closed
- * 1 - open
- */
- int (*get_cover_state)(struct device *dev, int slot);
-
- const char *name;
- u32 ocr_mask;
-
- /* Card detection IRQs */
- int card_detect_irq;
-
- int (*card_detect)(struct device *dev, int slot);
- } slots[OMAP_HSMMC_MAX_SLOTS];
+ unsigned features;
+
+ int switch_pin; /* gpio (card detect) */
+ int gpio_wp; /* gpio (write protect) */
+
+ int (*set_power)(struct device *dev, int slot,
+ int power_on, int vdd);
+ int (*get_ro)(struct device *dev, int slot);
+ void (*remux)(struct device *dev, int slot, int power_on);
+ /* Call back before enabling / disabling regulators */
+ void (*before_set_reg)(struct device *dev, int slot,
+ int power_on, int vdd);
+ /* Call back after enabling / disabling regulators */
+ void (*after_set_reg)(struct device *dev, int slot,
+ int power_on, int vdd);
+ /* if we have special card, init it using this callback */
+ void (*init_card)(struct mmc_card *card);
+
+ /* return MMC cover switch state, can be NULL if not supported.
+ *
+ * possible return values:
+ * 0 - closed
+ * 1 - open
+ */
+ int (*get_cover_state)(struct device *dev, int slot);
+
+ const char *name;
+ u32 ocr_mask;
+
+ /* Card detection IRQs */
+ int card_detect_irq;
+
+ int (*card_detect)(struct device *dev, int slot);
};
--
cgit v1.2.1
From b5cd43f062717b6c92f93bc0c593764e144ea331 Mon Sep 17 00:00:00 2001
From: Andreas Fenkart <afenkart@gmail.com>
Date: Sat, 8 Nov 2014 15:33:16 +0100
Subject: mmc: omap_hsmmc: Remove unnecessary callbacks from platform data
These callbacks are set during driver probe and not from the platform
init, -- evtl. they had been for oamp 1/2 -- for omap3 they are local
functions of the driver. These indirection could be dropped
altogether in favor of regular function calls TODO
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/platform_data/hsmmc-omap.h | 18 ------------------
1 file changed, 18 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 26912143adc0..68ffec14b56a 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -45,10 +45,6 @@ struct omap_hsmmc_platform_data {
* maximum frequency on the MMC bus */
unsigned int max_freq;
- /* To handle board related suspend/resume functionality for MMC */
- int (*suspend)(struct device *dev, int slot);
- int (*resume)(struct device *dev, int slot);
-
/* Integrating attributes from the omap_hwmod layer */
u8 controller_flags;
@@ -85,7 +81,6 @@ struct omap_hsmmc_platform_data {
int (*set_power)(struct device *dev, int slot,
int power_on, int vdd);
- int (*get_ro)(struct device *dev, int slot);
void (*remux)(struct device *dev, int slot, int power_on);
/* Call back before enabling / disabling regulators */
void (*before_set_reg)(struct device *dev, int slot,
@@ -96,19 +91,6 @@ struct omap_hsmmc_platform_data {
/* if we have special card, init it using this callback */
void (*init_card)(struct mmc_card *card);
- /* return MMC cover switch state, can be NULL if not supported.
- *
- * possible return values:
- * 0 - closed
- * 1 - open
- */
- int (*get_cover_state)(struct device *dev, int slot);
-
const char *name;
u32 ocr_mask;
-
- /* Card detection IRQs */
- int card_detect_irq;
-
- int (*card_detect)(struct device *dev, int slot);
};
--
cgit v1.2.1
From 80412ca8abf087354891108d2f888ad3de56e73c Mon Sep 17 00:00:00 2001
From: Andreas Fenkart <afenkart@gmail.com>
Date: Sat, 8 Nov 2014 15:33:17 +0100
Subject: mmc: omap_hsmmc: remove unused slot_id parameter
omap_hsmmc only supports one slot. So slot id is always zero, and
slot id was never used in the callbacks anyway
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/platform_data/hsmmc-omap.h | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 68ffec14b56a..67bbcf0785f6 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -38,9 +38,6 @@ struct omap_hsmmc_platform_data {
/* back-link to device */
struct device *dev;
- /* number of slots per controller */
- unsigned nr_slots:2;
-
/* set if your board has components or wiring that limits the
* maximum frequency on the MMC bus */
unsigned int max_freq;
@@ -79,15 +76,12 @@ struct omap_hsmmc_platform_data {
int switch_pin; /* gpio (card detect) */
int gpio_wp; /* gpio (write protect) */
- int (*set_power)(struct device *dev, int slot,
- int power_on, int vdd);
- void (*remux)(struct device *dev, int slot, int power_on);
+ int (*set_power)(struct device *dev, int power_on, int vdd);
+ void (*remux)(struct device *dev, int power_on);
/* Call back before enabling / disabling regulators */
- void (*before_set_reg)(struct device *dev, int slot,
- int power_on, int vdd);
+ void (*before_set_reg)(struct device *dev, int power_on, int vdd);
/* Call back after enabling / disabling regulators */
- void (*after_set_reg)(struct device *dev, int slot,
- int power_on, int vdd);
+ void (*after_set_reg)(struct device *dev, int power_on, int vdd);
/* if we have special card, init it using this callback */
void (*init_card)(struct mmc_card *card);
--
cgit v1.2.1
From 767562348b72cb2612f5991ad35a5c0448254939 Mon Sep 17 00:00:00 2001
From: Addy Ke <addy.ke@rock-chips.com>
Date: Tue, 4 Nov 2014 22:03:09 +0800
Subject: mmc: dw_mmc: add support for the other bit of sdio interrupt
The bit of sdio interrupt is 16 in designware implementation,
but it is 24 on Rockchip SoCs.This patch add sdio_id0 for the
number of slot0 in the SDIO interrupt registers.
Signed-off-by: Addy Ke <addy.ke@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/dw_mmc.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 0a551152d600..42b724e8d503 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -97,6 +97,7 @@ struct mmc_data;
* @quirks: Set of quirks that apply to specific versions of the IP.
* @irq_flags: The flags to be passed to request_irq.
* @irq: The irq value to be passed to request_irq.
+ * @sdio_id0: Number of slot0 in the SDIO interrupt registers.
*
* Locking
* =======
@@ -193,6 +194,8 @@ struct dw_mci {
bool vqmmc_enabled;
unsigned long irq_flags; /* IRQ flags */
int irq;
+
+ int sdio_id0;
};
/* DMA ops for Internal/External DMAC interface */
--
cgit v1.2.1
From 996903de92f0c7a32d8c83f37d7ebcea0def8660 Mon Sep 17 00:00:00 2001
From: Minda Chen <Minda.Chen@csr.com>
Date: Wed, 26 Nov 2014 13:05:33 +0800
Subject: mmc: core: add core-level function for sending tuning commands
According to the SD card spec, Add a manual tuning command function
for SDR104/HS200.
Sending command 19 or command 21 to read data and compare with the
tunning block pattern.
This patch will help to decrease some platform private codes in SDHCI
platform_execute_tuning() callbacks.
Signed-off-by: Minda Chen <Minda.Chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/linux/mmc/core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index b11e43c10631..c4bdaa128693 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -154,6 +154,7 @@ extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool,
bool, bool);
extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
+extern int mmc_send_tuning(struct mmc_card *card);
extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
#define MMC_ERASE_ARG 0x00000000
--
cgit v1.2.1
From d3fccc7ef831d1d829b4da5eaa081db55b1e38f3 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 10 Nov 2014 09:33:56 +0100
Subject: kvm: fix kvm_is_mmio_pfn() and rename to kvm_is_reserved_pfn()
This reverts commit 85c8555ff0 ("KVM: check for !is_zero_pfn() in
kvm_is_mmio_pfn()") and renames the function to kvm_is_reserved_pfn.
The problem being addressed by the patch above was that some ARM code
based the memory mapping attributes of a pfn on the return value of
kvm_is_mmio_pfn(), whose name indeed suggests that such pfns should
be mapped as device memory.
However, kvm_is_mmio_pfn() doesn't do quite what it says on the tin,
and the existing non-ARM users were already using it in a way which
suggests that its name should probably have been 'kvm_is_reserved_pfn'
from the beginning, e.g., whether or not to call get_page/put_page on
it etc. This means that returning false for the zero page is a mistake
and the patch above should be reverted.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ea53b04993f2..a6059bdf7b03 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -703,7 +703,7 @@ void kvm_arch_sync_events(struct kvm *kvm);
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
-bool kvm_is_mmio_pfn(pfn_t pfn);
+bool kvm_is_reserved_pfn(pfn_t pfn);
struct kvm_irq_ack_notifier {
struct hlist_node link;
--
cgit v1.2.1
From f5c1434c217fd72ac0d24d3142d09e49a3d4e72e Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Mon, 24 Nov 2014 14:35:10 +0000
Subject: irqchip: GICv3: rework redistributor structure
The basic GICv3 driver has almost no use for the redistributor
(other than the basic per-CPU interrupts), but the ITS needs
a lot more from them.
As such, rework the set of data structures. The behaviour of the
GICv3 driver is otherwise unaffected.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1416839720-18400-4-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqchip/arm-gic-v3.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 03a4ea37ba86..040615a48bf5 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -49,6 +49,10 @@
#define GICD_CTLR_ENABLE_G1A (1U << 1)
#define GICD_CTLR_ENABLE_G1 (1U << 0)
+#define GICD_TYPER_ID_BITS(typer) ((((typer) >> 19) & 0x1f) + 1)
+#define GICD_TYPER_IRQS(typer) ((((typer) & 0x1f) + 1) * 32)
+#define GICD_TYPER_LPIS (1U << 17)
+
#define GICD_IROUTER_SPI_MODE_ONE (0U << 31)
#define GICD_IROUTER_SPI_MODE_ANY (1U << 31)
@@ -189,6 +193,17 @@
#include <linux/stringify.h>
+struct rdists {
+ struct {
+ void __iomem *rd_base;
+ struct page *pend_page;
+ phys_addr_t phys_base;
+ } __percpu *rdist;
+ struct page *prop_page;
+ int id_bits;
+ u64 flags;
+};
+
static inline void gic_write_eoir(u64 irq)
{
asm volatile("msr_s " __stringify(ICC_EOIR1_EL1) ", %0" : : "r" (irq));
--
cgit v1.2.1
From cc2d3216f53c9fff0030eb71cacc4ce5f39d1d7e Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Mon, 24 Nov 2014 14:35:11 +0000
Subject: irqchip: GICv3: ITS command queue
The ITS is configured through a number commands that the driver
issues to the HW using a memory-based circular buffer.
This patch implements the subset of commands that are required
for Linux.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1416839720-18400-5-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqchip/arm-gic-v3.h | 102 +++++++++++++++++++++++++++++++++++++
1 file changed, 102 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 040615a48bf5..21c9d70426d1 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -80,9 +80,27 @@
#define GICR_MOVALLR 0x0110
#define GICR_PIDR2 GICD_PIDR2
+#define GICR_CTLR_ENABLE_LPIS (1UL << 0)
+
+#define GICR_TYPER_CPU_NUMBER(r) (((r) >> 8) & 0xffff)
+
#define GICR_WAKER_ProcessorSleep (1U << 1)
#define GICR_WAKER_ChildrenAsleep (1U << 2)
+#define GICR_PROPBASER_NonShareable (0U << 10)
+#define GICR_PROPBASER_InnerShareable (1U << 10)
+#define GICR_PROPBASER_OuterShareable (2U << 10)
+#define GICR_PROPBASER_SHAREABILITY_MASK (3UL << 10)
+#define GICR_PROPBASER_nCnB (0U << 7)
+#define GICR_PROPBASER_nC (1U << 7)
+#define GICR_PROPBASER_RaWt (2U << 7)
+#define GICR_PROPBASER_RaWb (3U << 7)
+#define GICR_PROPBASER_WaWt (4U << 7)
+#define GICR_PROPBASER_WaWb (5U << 7)
+#define GICR_PROPBASER_RaWaWt (6U << 7)
+#define GICR_PROPBASER_RaWaWb (7U << 7)
+#define GICR_PROPBASER_IDBITS_MASK (0x1f)
+
/*
* Re-Distributor registers, offsets from SGI_base
*/
@@ -95,9 +113,93 @@
#define GICR_IPRIORITYR0 GICD_IPRIORITYR
#define GICR_ICFGR0 GICD_ICFGR
+#define GICR_TYPER_PLPIS (1U << 0)
#define GICR_TYPER_VLPIS (1U << 1)
#define GICR_TYPER_LAST (1U << 4)
+#define LPI_PROP_GROUP1 (1 << 1)
+#define LPI_PROP_ENABLED (1 << 0)
+
+/*
+ * ITS registers, offsets from ITS_base
+ */
+#define GITS_CTLR 0x0000
+#define GITS_IIDR 0x0004
+#define GITS_TYPER 0x0008
+#define GITS_CBASER 0x0080
+#define GITS_CWRITER 0x0088
+#define GITS_CREADR 0x0090
+#define GITS_BASER 0x0100
+#define GITS_PIDR2 GICR_PIDR2
+
+#define GITS_TRANSLATER 0x10040
+
+#define GITS_TYPER_PTA (1UL << 19)
+
+#define GITS_CBASER_VALID (1UL << 63)
+#define GITS_CBASER_nCnB (0UL << 59)
+#define GITS_CBASER_nC (1UL << 59)
+#define GITS_CBASER_RaWt (2UL << 59)
+#define GITS_CBASER_RaWb (3UL << 59)
+#define GITS_CBASER_WaWt (4UL << 59)
+#define GITS_CBASER_WaWb (5UL << 59)
+#define GITS_CBASER_RaWaWt (6UL << 59)
+#define GITS_CBASER_RaWaWb (7UL << 59)
+#define GITS_CBASER_NonShareable (0UL << 10)
+#define GITS_CBASER_InnerShareable (1UL << 10)
+#define GITS_CBASER_OuterShareable (2UL << 10)
+#define GITS_CBASER_SHAREABILITY_MASK (3UL << 10)
+
+#define GITS_BASER_NR_REGS 8
+
+#define GITS_BASER_VALID (1UL << 63)
+#define GITS_BASER_nCnB (0UL << 59)
+#define GITS_BASER_nC (1UL << 59)
+#define GITS_BASER_RaWt (2UL << 59)
+#define GITS_BASER_RaWb (3UL << 59)
+#define GITS_BASER_WaWt (4UL << 59)
+#define GITS_BASER_WaWb (5UL << 59)
+#define GITS_BASER_RaWaWt (6UL << 59)
+#define GITS_BASER_RaWaWb (7UL << 59)
+#define GITS_BASER_TYPE_SHIFT (56)
+#define GITS_BASER_TYPE(r) (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
+#define GITS_BASER_ENTRY_SIZE_SHIFT (48)
+#define GITS_BASER_ENTRY_SIZE(r) ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0xff) + 1)
+#define GITS_BASER_NonShareable (0UL << 10)
+#define GITS_BASER_InnerShareable (1UL << 10)
+#define GITS_BASER_OuterShareable (2UL << 10)
+#define GITS_BASER_SHAREABILITY_SHIFT (10)
+#define GITS_BASER_SHAREABILITY_MASK (3UL << GITS_BASER_SHAREABILITY_SHIFT)
+#define GITS_BASER_PAGE_SIZE_SHIFT (8)
+#define GITS_BASER_PAGE_SIZE_4K (0UL << GITS_BASER_PAGE_SIZE_SHIFT)
+#define GITS_BASER_PAGE_SIZE_16K (1UL << GITS_BASER_PAGE_SIZE_SHIFT)
+#define GITS_BASER_PAGE_SIZE_64K (2UL << GITS_BASER_PAGE_SIZE_SHIFT)
+#define GITS_BASER_PAGE_SIZE_MASK (3UL << GITS_BASER_PAGE_SIZE_SHIFT)
+
+#define GITS_BASER_TYPE_NONE 0
+#define GITS_BASER_TYPE_DEVICE 1
+#define GITS_BASER_TYPE_VCPU 2
+#define GITS_BASER_TYPE_CPU 3
+#define GITS_BASER_TYPE_COLLECTION 4
+#define GITS_BASER_TYPE_RESERVED5 5
+#define GITS_BASER_TYPE_RESERVED6 6
+#define GITS_BASER_TYPE_RESERVED7 7
+
+/*
+ * ITS commands
+ */
+#define GITS_CMD_MAPD 0x08
+#define GITS_CMD_MAPC 0x09
+#define GITS_CMD_MAPVI 0x0a
+#define GITS_CMD_MOVI 0x01
+#define GITS_CMD_DISCARD 0x0f
+#define GITS_CMD_INV 0x0c
+#define GITS_CMD_MOVALL 0x0e
+#define GITS_CMD_INVALL 0x0d
+#define GITS_CMD_INT 0x03
+#define GITS_CMD_CLEAR 0x04
+#define GITS_CMD_SYNC 0x05
+
/*
* CPU interface registers
*/
--
cgit v1.2.1
From b48ac83d6bbc20a973c3e8133fd1ebda873d026a Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Mon, 24 Nov 2014 14:35:16 +0000
Subject: irqchip: GICv3: ITS: MSI support
Now, the bit of code that allow us to use the ITS as a MSI controller.
Both MSI and MSI-X are supported.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1416839720-18400-10-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqchip/arm-gic-v3.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 21c9d70426d1..0ed30d7d9338 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -295,6 +295,12 @@
#include <linux/stringify.h>
+/*
+ * We need a value to serve as a irq-type for LPIs. Choose one that will
+ * hopefully pique the interest of the reviewer.
+ */
+#define GIC_IRQ_TYPE_LPI 0xa110c8ed
+
struct rdists {
struct {
void __iomem *rd_base;
--
cgit v1.2.1
From da33f31de3e1eebb198109c1cccdc3a094e369c4 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Mon, 24 Nov 2014 14:35:18 +0000
Subject: irqchip: GICv3: ITS: plug ITS init into main GICv3 code
As the ITS is always a subsystem if GICv3, its probing/init is
driven by the main GICv3 code.
Plug that code in (guarded by a config option).
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1416839720-18400-12-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqchip/arm-gic-v3.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 0ed30d7d9338..1e8b0cf30792 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -318,6 +318,11 @@ static inline void gic_write_eoir(u64 irq)
isb();
}
+struct irq_domain;
+int its_cpu_init(void);
+int its_init(struct device_node *node, struct rdists *rdists,
+ struct irq_domain *domain);
+
#endif
#endif
--
cgit v1.2.1
From 853a33ce6932601030f550653aea91a0e0a71511 Mon Sep 17 00:00:00 2001
From: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Date: Tue, 25 Nov 2014 18:47:22 +0000
Subject: irqchip: gic-v2m: Add support for ARM GICv2m MSI(-X) doorbell
ARM GICv2m specification extends GICv2 to support MSI(-X) with
a new register frame. This allows a GICv2 based system to support
MSI with minimal changes.
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
[maz: converted the driver to use stacked irq domains,
updated changelog]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/1416941243-7181-2-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqchip/arm-gic.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 13eed92c7d24..60b09ed58cae 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -106,6 +106,8 @@ static inline void gic_init(unsigned int nr, int start,
gic_init_bases(nr, start, dist, cpu, 0, NULL);
}
+int gicv2m_of_init(struct device_node *node, struct irq_domain *parent);
+
void gic_send_sgi(unsigned int cpu_id, unsigned int irq);
int gic_get_cpu_id(unsigned int cpu);
void gic_migrate_target(unsigned int new_cpu_id);
--
cgit v1.2.1
From 7c967b224a9a7061009ccbc47e1a0b605f1b6d81 Mon Sep 17 00:00:00 2001
From: Tom Herbert <therbert@google.com>
Date: Tue, 25 Nov 2014 11:21:19 -0800
Subject: net: Add remcsum_adjust as common function for remote checksum
offload
This function does the work to update a checksum field as part of
remote checksum offload.
remcsum_adjust does the following:
1) Subtract out the calculated checksum from the beginning of the
packet (ptr arg) to the start offset.
2) Adjust the checksum field indicated by offset based on the modified
checksum value from above step.
3) Return the difference in the old checksum field value and the
new one. The caller will use this to update skb->csum and NAPI csum.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/checksum.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/net/checksum.h b/include/net/checksum.h
index 6465bae80a4f..e339a9513e29 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -151,4 +151,20 @@ static inline void inet_proto_csum_replace2(__sum16 *sum, struct sk_buff *skb,
(__force __be32)to, pseudohdr);
}
+static inline __wsum remcsum_adjust(void *ptr, __wsum csum,
+ int start, int offset)
+{
+ __sum16 *psum = (__sum16 *)(ptr + offset);
+ __wsum delta;
+
+ /* Subtract out checksum up to start */
+ csum = csum_sub(csum, csum_partial(ptr, start, 0));
+
+ /* Set derived checksum in packet */
+ delta = csum_sub(csum_fold(csum), *psum);
+ *psum = csum_fold(csum);
+
+ return delta;
+}
+
#endif
--
cgit v1.2.1
From 947c88592f17bd299ff677049c3cda36cc6f93dd Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Wed, 26 Nov 2014 13:44:31 +0800
Subject: usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER
Now, USB PHY is mandatory for chipidea core, the flag
CI_HDRC_REQUIRE_TRANSCEIVER is useless.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb/chipidea.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index c01bf4ea27b9..535997a6681b 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -19,7 +19,6 @@ struct ci_hdrc_platform_data {
enum usb_phy_interface phy_mode;
unsigned long flags;
#define CI_HDRC_REGS_SHARED BIT(0)
-#define CI_HDRC_REQUIRE_TRANSCEIVER BIT(1)
#define CI_HDRC_DISABLE_STREAMING BIT(3)
/*
* Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1,
--
cgit v1.2.1
From 1ae2b01658a5ae00786d4bda191fbf6f38e5dbb0 Mon Sep 17 00:00:00 2001
From: Jeff Chen <cym@rock-chips.com>
Date: Tue, 25 Nov 2014 16:13:02 -0800
Subject: clk: rockchip: add binding ID for DMC (memory controller) clocks on
rk3288
The DMC clocks need to be turned off at runtime, so we should have IDs
so we can export them.
Signed-off-by: Jeff Chen <cym@rock-chips.com>
[dianders: split into two patches; adjusted commit msg]
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
include/dt-bindings/clock/rk3288-cru.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index 100a08c47692..8e19ed58db33 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -141,6 +141,10 @@
#define PCLK_VIO2_H2P 361
#define PCLK_CPU 362
#define PCLK_PERI 363
+#define PCLK_DDRUPCTL0 364
+#define PCLK_PUBL0 365
+#define PCLK_DDRUPCTL1 366
+#define PCLK_PUBL1 367
/* hclk gates */
#define HCLK_GPS 448
--
cgit v1.2.1
From e5262d0568dc9e10de79a726dfd7edb712a2c10b Mon Sep 17 00:00:00 2001
From: Weike Chen <alvin.chen@intel.com>
Date: Wed, 26 Nov 2014 02:35:10 -0800
Subject: spi: spi-pxa2xx: SPI support for Intel Quark X1000
There are two SPI controllers exported by PCI subsystem for Intel Quark X1000.
The SPI memory mapped I/O registers supported by Quark are different from
the current implementation, and Quark only supports the registers of 'SSCR0',
'SSCR1', 'SSSR', 'SSDR', and 'DDS_RATE'. This patch is to enable the SPI for
Intel Quark X1000.
This piece of work is derived from Dan O'Donovan's initial work for Intel Quark
X1000 SPI enabling.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Weike Chen <alvin.chen@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/pxa2xx_ssp.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
(limited to 'include')
diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h
index f2b405116166..77aed9ea1d26 100644
--- a/include/linux/pxa2xx_ssp.h
+++ b/include/linux/pxa2xx_ssp.h
@@ -108,6 +108,25 @@
#define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..4] */
#endif
+/* QUARK_X1000 SSCR0 bit definition */
+#define QUARK_X1000_SSCR0_DSS (0x1F) /* Data Size Select (mask) */
+#define QUARK_X1000_SSCR0_DataSize(x) ((x) - 1) /* Data Size Select [4..32] */
+#define QUARK_X1000_SSCR0_FRF (0x3 << 5) /* FRame Format (mask) */
+#define QUARK_X1000_SSCR0_Motorola (0x0 << 5) /* Motorola's Serial Peripheral Interface (SPI) */
+
+#define RX_THRESH_QUARK_X1000_DFLT 1
+#define TX_THRESH_QUARK_X1000_DFLT 16
+
+#define QUARK_X1000_SSSR_TFL_MASK (0x1F << 8) /* Transmit FIFO Level mask */
+#define QUARK_X1000_SSSR_RFL_MASK (0x1F << 13) /* Receive FIFO Level mask */
+
+#define QUARK_X1000_SSCR1_TFT (0x1F << 6) /* Transmit FIFO Threshold (mask) */
+#define QUARK_X1000_SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..32] */
+#define QUARK_X1000_SSCR1_RFT (0x1F << 11) /* Receive FIFO Threshold (mask) */
+#define QUARK_X1000_SSCR1_RxTresh(x) (((x) - 1) << 11) /* level [1..32] */
+#define QUARK_X1000_SSCR1_STRF (1 << 17) /* Select FIFO or EFWR */
+#define QUARK_X1000_SSCR1_EFWR (1 << 16) /* Enable FIFO Write/Read */
+
/* extra bits in PXA255, PXA26x and PXA27x SSP ports */
#define SSCR0_TISSP (1 << 4) /* TI Sync Serial Protocol */
#define SSCR0_PSP (3 << 4) /* PSP - Programmable Serial Protocol */
@@ -175,6 +194,7 @@ enum pxa_ssp_type {
PXA910_SSP,
CE4100_SSP,
LPSS_SSP,
+ QUARK_X1000_SSP,
};
struct ssp_device {
--
cgit v1.2.1
From 2378ad1228d2cdae0ea5448beb4fb2b42ebaf99c Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 17 Sep 2014 02:07:52 +0300
Subject: drm: rcar-du: Remove platform data support
All platforms now instantiate the DU through DT, platform data support
isn't needed anymore.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
include/linux/platform_data/rcar-du.h | 74 -----------------------------------
1 file changed, 74 deletions(-)
delete mode 100644 include/linux/platform_data/rcar-du.h
(limited to 'include')
diff --git a/include/linux/platform_data/rcar-du.h b/include/linux/platform_data/rcar-du.h
deleted file mode 100644
index a5f045e1d8fe..000000000000
--- a/include/linux/platform_data/rcar-du.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * rcar_du.h -- R-Car Display Unit DRM driver
- *
- * Copyright (C) 2013 Renesas Corporation
- *
- * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __RCAR_DU_H__
-#define __RCAR_DU_H__
-
-#include <video/videomode.h>
-
-enum rcar_du_output {
- RCAR_DU_OUTPUT_DPAD0,
- RCAR_DU_OUTPUT_DPAD1,
- RCAR_DU_OUTPUT_LVDS0,
- RCAR_DU_OUTPUT_LVDS1,
- RCAR_DU_OUTPUT_TCON,
- RCAR_DU_OUTPUT_MAX,
-};
-
-enum rcar_du_encoder_type {
- RCAR_DU_ENCODER_UNUSED = 0,
- RCAR_DU_ENCODER_NONE,
- RCAR_DU_ENCODER_VGA,
- RCAR_DU_ENCODER_LVDS,
-};
-
-struct rcar_du_panel_data {
- unsigned int width_mm; /* Panel width in mm */
- unsigned int height_mm; /* Panel height in mm */
- struct videomode mode;
-};
-
-struct rcar_du_connector_lvds_data {
- struct rcar_du_panel_data panel;
-};
-
-struct rcar_du_connector_vga_data {
- /* TODO: Add DDC information for EDID retrieval */
-};
-
-/*
- * struct rcar_du_encoder_data - Encoder platform data
- * @type: the encoder type (RCAR_DU_ENCODER_*)
- * @output: the DU output the connector is connected to (RCAR_DU_OUTPUT_*)
- * @connector.lvds: platform data for LVDS connectors
- * @connector.vga: platform data for VGA connectors
- *
- * Encoder platform data describes an on-board encoder, its associated DU SoC
- * output, and the connector.
- */
-struct rcar_du_encoder_data {
- enum rcar_du_encoder_type type;
- enum rcar_du_output output;
-
- union {
- struct rcar_du_connector_lvds_data lvds;
- struct rcar_du_connector_vga_data vga;
- } connector;
-};
-
-struct rcar_du_platform_data {
- struct rcar_du_encoder_data *encoders;
- unsigned int num_encoders;
-};
-
-#endif /* __RCAR_DU_H__ */
--
cgit v1.2.1
From 18df89fef2d5c7cfd15ab898b17a292d00222b0c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Apr 2012 11:11:58 +0200
Subject: drm: Decouple EDID parsing from I2C adapter
The drm_get_edid() function performs direct I2C accesses to read EDID
blocks, assuming that the monitor DDC interface is directly connected to
the I2C bus. It can't thus be used with HDMI encoders that control the
DDC bus and expose EDID blocks through a different interface.
Refactor drm_do_get_edid() to take a block read callback function
instead of an I2C adapter, and export it for direct use by drivers.
As in the general case the DDC bus is accessible by the kernel at the
I2C level, drivers must make all reasonable efforts to expose it as an
I2C adapter and use drm_get_edid() instead of abusing this function.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_edid.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index c2f1bfa22010..d59240ffb1f7 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -381,4 +381,9 @@ static inline int drm_eld_size(const uint8_t *eld)
return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4;
}
+struct edid *drm_do_get_edid(struct drm_connector *connector,
+ int (*get_edid_block)(void *data, u8 *buf, unsigned int block,
+ size_t len),
+ void *data);
+
#endif /* __DRM_EDID_H__ */
--
cgit v1.2.1
From 87e1e0f29f703e91c54e81f05d831432ec659dde Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Mon, 10 Nov 2014 14:43:52 +0100
Subject: regulator: Add mode mapping function to struct regulator_desc
The "regulator-initial-mode" and "regulator-mode" DT properties allows
to configure the regulator operating modes at startup or when a system
enters into a susend state.
But these properties use as valid values the operating modes supported
by each device while the core deals with the standard operating modes.
So a mapping function is needed to translate from the hardware specific
modes to the standard ones.
This mapping is a non-varying configuration for each regulator, so add
a function pointer to struct regulator_desc that will allow drivers to
define their callback to do the modes translation.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/regulator/driver.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index fc0ee0ce8325..73dd073afef5 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -243,6 +243,8 @@ enum regulator_type {
*
* @enable_time: Time taken for initial enable of regulator (in uS).
* @off_on_delay: guard time (in uS), before re-enabling a regulator
+ *
+ * @of_map_mode: Maps a hardware mode defined in a DeviceTree to a standard mode
*/
struct regulator_desc {
const char *name;
@@ -285,6 +287,8 @@ struct regulator_desc {
unsigned int enable_time;
unsigned int off_on_delay;
+
+ unsigned int (*of_map_mode)(unsigned int mode);
};
/**
--
cgit v1.2.1
From 072e78b12bf5182a3e2e460388214a291023ef1c Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Mon, 10 Nov 2014 14:43:53 +0100
Subject: regulator: of: Add regulator desc param to
of_get_regulator_init_data()
The of_get_regulator_init_data() function is used to extract the regulator
init_data but information on how to extract certain data is defined in the
static regulator descriptor (e.g: how to map the hardware operating modes).
Add a const struct regulator_desc * parameter to the function signature so
the parsing logic could use the information in the struct regulator_desc.
of_get_regulator_init_data() relies on of_get_regulation_constraints() to
actually extract the init_data so it has to pass the struct regulator_desc
but that is modified on a later patch.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/regulator/of_regulator.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
index f9217965aaa3..8d1d136c0fb9 100644
--- a/include/linux/regulator/of_regulator.h
+++ b/include/linux/regulator/of_regulator.h
@@ -6,6 +6,8 @@
#ifndef __LINUX_OF_REG_H
#define __LINUX_OF_REG_H
+struct regulator_desc;
+
struct of_regulator_match {
const char *name;
void *driver_data;
@@ -16,14 +18,16 @@ struct of_regulator_match {
#if defined(CONFIG_OF)
extern struct regulator_init_data
*of_get_regulator_init_data(struct device *dev,
- struct device_node *node);
+ struct device_node *node,
+ const struct regulator_desc *desc);
extern int of_regulator_match(struct device *dev, struct device_node *node,
struct of_regulator_match *matches,
unsigned int num_matches);
#else
static inline struct regulator_init_data
*of_get_regulator_init_data(struct device *dev,
- struct device_node *node)
+ struct device_node *node,
+ const struct regulator_desc *desc)
{
return NULL;
}
--
cgit v1.2.1
From 75d6b2faf79cbe9086e831351d5d9085f1852928 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Mon, 10 Nov 2014 14:43:54 +0100
Subject: regulator: of: Pass the regulator description in the match table
Drivers can use the of_regulator_match() function to parse the regulator
init_data from DT. A match table is used to specify the name of the node
containing the regulators, the device node and to return the init_data
to the caller.
But also the static regulator descriptor is needed to correctly extract
some DT properties like the regulator initial and suspend modes. Use the
match table to pass that information.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/regulator/of_regulator.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
index 8d1d136c0fb9..763953f7e3b8 100644
--- a/include/linux/regulator/of_regulator.h
+++ b/include/linux/regulator/of_regulator.h
@@ -13,6 +13,7 @@ struct of_regulator_match {
void *driver_data;
struct regulator_init_data *init_data;
struct device_node *of_node;
+ const struct regulator_desc *desc;
};
#if defined(CONFIG_OF)
--
cgit v1.2.1
From 98f0334263f177dd22ca7c685cde04b47cc57b05 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 26 Nov 2014 12:42:02 +0100
Subject: cfg80211: clean up beacon loss CQM event
Having it as a sub-event for RSSI thresholds is very ugly,
but luckily no userspace actually uses the events yet.
Move the event to its own function call internally and to
its own event attribute in nl80211.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/cfg80211.h | 9 +++++++++
include/net/mac80211.h | 8 ++++++++
include/uapi/linux/nl80211.h | 7 ++++---
3 files changed, 21 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 1d15f1dfdaa7..4ebb816241fa 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4669,6 +4669,15 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer,
u32 num_packets, u32 rate, u32 intvl, gfp_t gfp);
+/**
+ * cfg80211_cqm_beacon_loss_notify - beacon loss event
+ * @dev: network device
+ * @gfp: context flags
+ *
+ * Notify userspace about beacon loss from the connected AP.
+ */
+void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp);
+
/**
* cfg80211_radar_event - radar detection event
* @wiphy: the wiphy
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index cff3a26a9dae..66cbfe46428d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4671,6 +4671,14 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
enum nl80211_cqm_rssi_threshold_event rssi_event,
gfp_t gfp);
+/**
+ * ieee80211_cqm_beacon_loss_notify - inform CQM of beacon loss
+ *
+ * @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @gfp: context flags
+ */
+void ieee80211_cqm_beacon_loss_notify(struct ieee80211_vif *vif, gfp_t gfp);
+
/**
* ieee80211_radar_detected - inform that a radar was detected
*
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index d77524510435..b37bd5a1cb82 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3451,6 +3451,8 @@ enum nl80211_ps_state {
* interval in which %NL80211_ATTR_CQM_TXE_PKTS and
* %NL80211_ATTR_CQM_TXE_RATE must be satisfied before generating an
* %NL80211_CMD_NOTIFY_CQM. Set to 0 to turn off TX error reporting.
+ * @NL80211_ATTR_CQM_BEACON_LOSS_EVENT: flag attribute that's set in a beacon
+ * loss event
* @__NL80211_ATTR_CQM_AFTER_LAST: internal
* @NL80211_ATTR_CQM_MAX: highest key attribute
*/
@@ -3463,6 +3465,7 @@ enum nl80211_attr_cqm {
NL80211_ATTR_CQM_TXE_RATE,
NL80211_ATTR_CQM_TXE_PKTS,
NL80211_ATTR_CQM_TXE_INTVL,
+ NL80211_ATTR_CQM_BEACON_LOSS_EVENT,
/* keep last */
__NL80211_ATTR_CQM_AFTER_LAST,
@@ -3475,9 +3478,7 @@ enum nl80211_attr_cqm {
* configured threshold
* @NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH: The RSSI is higher than the
* configured threshold
- * @NL80211_CQM_RSSI_BEACON_LOSS_EVENT: The device experienced beacon loss.
- * (Note that deauth/disassoc will still follow if the AP is not
- * available. This event might get used as roaming event, etc.)
+ * @NL80211_CQM_RSSI_BEACON_LOSS_EVENT: (reserved, never sent)
*/
enum nl80211_cqm_rssi_threshold_event {
NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
--
cgit v1.2.1
From f4713a3dfad045d46afcb9c2a7d0bba288920ed4 Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Wed, 26 Nov 2014 14:53:02 -0500
Subject: net-timestamp: make tcp_recvmsg call ipv6_recv_error for AF_INET6
socks
TCP timestamping introduced MSG_ERRQUEUE handling for TCP sockets.
If the socket is of family AF_INET6, call ipv6_recv_error instead
of ip_recv_error.
This change is more complex than a single branch due to the loadable
ipv6 module. It reuses a pre-existing indirect function call from
ping. The ping code is safe to call, because it is part of the core
ipv6 module and always present when AF_INET6 sockets are active.
Fixes: 4ed2d765 (net-timestamp: TCP timestamping)
Signed-off-by: Willem de Bruijn <willemb@google.com>
----
It may also be worthwhile to add WARN_ON_ONCE(sk->family == AF_INET6)
to ip_recv_error.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/inet_common.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/inet_common.h b/include/net/inet_common.h
index fe7994c48b75..b2828a06a5a6 100644
--- a/include/net/inet_common.h
+++ b/include/net/inet_common.h
@@ -37,6 +37,8 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int inet_ctl_sock_create(struct sock **sk, unsigned short family,
unsigned short type, unsigned char protocol,
struct net *net);
+int inet_recv_error(struct sock *sk, struct msghdr *msg, int len,
+ int *addr_len);
static inline void inet_ctl_sock_destroy(struct sock *sk)
{
--
cgit v1.2.1
From f08bb472bff3c0397fb7d6f47bc5cec41dad76e3 Mon Sep 17 00:00:00 2001
From: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Date: Wed, 26 Nov 2014 22:01:13 +0800
Subject: ACPI / table: Add new function to get table entries
The acpi_table_parse() function has a callback that
passes a pointer to a table_header. Add a new function
which takes this pointer and parses its entries. This
eliminates the need to re-traverse all the tables for
each call. e.g. as in acpi_table_parse_madt() which is
normally called after acpi_table_parse().
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/acpi.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 407a12f663eb..3bd0c59e1fb9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -123,6 +123,10 @@ int acpi_numa_init (void);
int acpi_table_init (void);
int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
+int __init acpi_parse_entries(char *id, unsigned long table_size,
+ acpi_tbl_entry_handler handler,
+ struct acpi_table_header *table_header,
+ int entry_id, unsigned int max_entries);
int __init acpi_table_parse_entries(char *id, unsigned long table_size,
int entry_id,
acpi_tbl_entry_handler handler,
--
cgit v1.2.1
From 8ee885a98e2653a7f9c84d37cd8c5b6edf21b77f Mon Sep 17 00:00:00 2001
From: Pankaj Dubey <pankaj.dubey@samsung.com>
Date: Thu, 13 Nov 2014 14:12:48 +0530
Subject: coresight: fixed comments in coresight.h
fixes following minor issues in code comments in coresight.h
- typo %s/enpoint/endpoint
- alignment of comment section for struct coresight_desc
- correction of comment for struct coresight_connection and
struct coresight_device.
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/coresight.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index bdde4199c74a..5d3c54311f7a 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -87,7 +87,7 @@ struct coresight_dev_subtype {
* @cpu: the CPU a source belongs to. Only applicable for ETM/PTMs.
* @name: name of the component as shown under sysfs.
* @nr_inport: number of input ports for this component.
- * @outports: list of remote enpoint port number.
+ * @outports: list of remote endpoint port number.
* @child_names:name of all child components connected to this device.
* @child_ports:child component port number the current component is
connected to.
@@ -113,7 +113,7 @@ struct coresight_platform_data {
by @coresight_ops.
* @pdata: platform data collected from DT.
* @dev: The device entity associated to this component.
- * @groups :operations specific to this component. These will end up
+ * @groups: operations specific to this component. These will end up
in the component's sysfs sub-directory.
*/
struct coresight_desc {
@@ -127,7 +127,6 @@ struct coresight_desc {
/**
* struct coresight_connection - representation of a single connection
- * @ref_count: keeping count a port' references.
* @outport: a connection's output port number.
* @chid_name: remote component's name.
* @child_port: remote component's port number @output is connected to.
@@ -143,6 +142,7 @@ struct coresight_connection {
/**
* struct coresight_device - representation of a device as used by the framework
+ * @conns: array of coresight_connections associated to this component.
* @nr_inport: number of input port associated to this component.
* @nr_outport: number of output port associated to this component.
* @type: as defined by @coresight_dev_type.
--
cgit v1.2.1
From 5b48e0605a84c3d2ccd06f6218df90e737c10559 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Wed, 26 Nov 2014 14:47:09 -0800
Subject: spmi: Remove shutdown/suspend/resume kernel-doc
These members of the driver structure are not present.
Remove them from the kernel-doc.
Cc: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/spmi.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/spmi.h b/include/linux/spmi.h
index 91f5eab9e428..f84212cd3b7d 100644
--- a/include/linux/spmi.h
+++ b/include/linux/spmi.h
@@ -134,9 +134,6 @@ void spmi_controller_remove(struct spmi_controller *ctrl);
* this structure.
* @probe: binds this driver to a SPMI device.
* @remove: unbinds this driver from the SPMI device.
- * @shutdown: standard shutdown callback used during powerdown/halt.
- * @suspend: standard suspend callback used during system suspend.
- * @resume: standard resume callback used during system resume.
*
* If PM runtime support is desired for a slave, a device driver can call
* pm_runtime_put() from their probe() routine (and a balancing
--
cgit v1.2.1
From 98210b7f73f1db182bd9a558a031093cd166e907 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Sun, 9 Nov 2014 11:31:58 +0100
Subject: debugfs: add helper function to create device related seq_file
This patch adds a helper function that simplifies adding a
so-called single_open sequence file for device drivers. The
calling device driver needs to provide a read function and
a device pointer. The field struct seq_file::private will
reference the device pointer upon call to the read function
so the driver can obtain his data from it and do its task
of providing the file content using seq_printf() calls and
alike. Using this helper function also gets rid of the need
to specify file operations per debugfs file.
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/debugfs.h | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 4d0b4d1aa132..4bbe2ace972a 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -99,13 +99,18 @@ struct dentry *debugfs_create_u32_array(const char *name, umode_t mode,
struct dentry *parent,
u32 *array, u32 elements);
+struct dentry *debugfs_create_devm_seqfile(struct device *dev, const char *name,
+ struct dentry *parent,
+ int (*read_fn)(struct seq_file *s,
+ void *data));
+
bool debugfs_initialized(void);
#else
#include <linux/err.h>
-/*
+/*
* We do not return NULL from these functions if CONFIG_DEBUG_FS is not enabled
* so users have a chance to detect if there was a real error or not. We don't
* want to duplicate the design decision mistakes of procfs and devfs again.
@@ -251,6 +256,15 @@ static inline struct dentry *debugfs_create_u32_array(const char *name, umode_t
return ERR_PTR(-ENODEV);
}
+static inline struct dentry *debugfs_create_devm_seqfile(struct device *dev,
+ const char *name,
+ struct dentry *parent,
+ int (*read_fn)(struct seq_file *s,
+ void *data))
+{
+ return ERR_PTR(-ENODEV);
+}
+
#endif
#endif
--
cgit v1.2.1
From e135303bd5bebcd22bcf8a6b06ec0dd5a9432708 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 17 Nov 2014 18:18:22 -0800
Subject: device: Add dev_<level>_once variants
Add the equivalents to pr_<level>_once.
Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/device.h | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
(limited to 'include')
diff --git a/include/linux/device.h b/include/linux/device.h
index ce1f21608b16..99fb07cb4f06 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -1118,6 +1118,41 @@ do { \
})
#endif
+#ifdef CONFIG_PRINTK
+#define dev_level_once(dev_level, dev, fmt, ...) \
+do { \
+ static bool __print_once __read_mostly; \
+ \
+ if (!__print_once) { \
+ __print_once = true; \
+ dev_level(dev, fmt, ##__VA_ARGS__); \
+ } \
+} while (0)
+#else
+#define dev_level_once(dev_level, dev, fmt, ...) \
+do { \
+ if (0) \
+ dev_level(dev, fmt, ##__VA_ARGS__); \
+} while (0)
+#endif
+
+#define dev_emerg_once(dev, fmt, ...) \
+ dev_level_once(dev_emerg, dev, fmt, ##__VA_ARGS__)
+#define dev_alert_once(dev, fmt, ...) \
+ dev_level_once(dev_alert, dev, fmt, ##__VA_ARGS__)
+#define dev_crit_once(dev, fmt, ...) \
+ dev_level_once(dev_crit, dev, fmt, ##__VA_ARGS__)
+#define dev_err_once(dev, fmt, ...) \
+ dev_level_once(dev_err, dev, fmt, ##__VA_ARGS__)
+#define dev_warn_once(dev, fmt, ...) \
+ dev_level_once(dev_warn, dev, fmt, ##__VA_ARGS__)
+#define dev_notice_once(dev, fmt, ...) \
+ dev_level_once(dev_notice, dev, fmt, ##__VA_ARGS__)
+#define dev_info_once(dev, fmt, ...) \
+ dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
+#define dev_dbg_once(dev, fmt, ...) \
+ dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
+
#define dev_level_ratelimited(dev_level, dev, fmt, ...) \
do { \
static DEFINE_RATELIMIT_STATE(_rs, \
--
cgit v1.2.1
From 97b0c7bd2e86c6e1e00c6b7178cf953d5f70c71a Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Tue, 11 Nov 2014 18:33:01 +0000
Subject: mailbox: add tx_prepare client callback
If the mailbox controller expects the payload is in place before
initiating the transmit, then it's impossible to reuse the list
maintained by core mailbox code currently. Maintaining another list
for sending the message in the controller seems totally unnecessary
as core mailbox library already provides that feature.
This patch introduces tx_prepare callback in mbox_client which
can be used by the core mailbox library before initiating the
transaction through mbox->ops->send_data. The client driver can
implement this callback to ensure the payload is copied to the
shared memory.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
---
include/linux/mailbox_client.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mailbox_client.h b/include/linux/mailbox_client.h
index 307d9cab2026..1726ccbd8009 100644
--- a/include/linux/mailbox_client.h
+++ b/include/linux/mailbox_client.h
@@ -25,6 +25,8 @@ struct mbox_chan;
* if the client receives some ACK packet for transmission.
* Unused if the controller already has TX_Done/RTR IRQ.
* @rx_callback: Atomic callback to provide client the data received
+ * @tx_prepare: Atomic callback to ask client to prepare the payload
+ * before initiating the transmission if required.
* @tx_done: Atomic callback to tell client of data transmission
*/
struct mbox_client {
@@ -34,6 +36,7 @@ struct mbox_client {
bool knows_txdone;
void (*rx_callback)(struct mbox_client *cl, void *mssg);
+ void (*tx_prepare)(struct mbox_client *cl, void *mssg);
void (*tx_done)(struct mbox_client *cl, void *mssg, int r);
};
--
cgit v1.2.1
From 8841a66aaa7c3b1dfeeb4192d05f2ca86df58f00 Mon Sep 17 00:00:00 2001
From: Suman Anna <s-anna@ti.com>
Date: Mon, 3 Nov 2014 17:05:50 -0600
Subject: mailbox/omap: adapt to the new mailbox framework
The OMAP mailbox driver and its existing clients (remoteproc
for OMAP4+) are adapted to use the generic mailbox framework.
The main changes for the adaptation are:
- The tasklet used for Tx is replaced with the state machine from
the generic mailbox framework. The workqueue used for processing
the received messages stays intact for minimizing the effects on
the OMAP mailbox clients.
- The existing exported client API, omap_mbox_get, omap_mbox_put and
omap_mbox_send_msg are deleted, as the framework provides equivalent
functionality. A OMAP-specific omap_mbox_request_channel is added
though to support non-DT way of requesting mailboxes.
- The OMAP mailbox driver is integrated with the mailbox framework
through the proper implementations of mbox_chan_ops, except for
.last_tx_done and .peek_data. The OMAP mailbox driver does not need
these ops, as it is completely interrupt driven.
- The OMAP mailbox driver uses a custom of_xlate controller ops that
allows phandles for the pargs specifier instead of indexing to avoid
any channel registration order dependencies.
- The new framework does not support multiple clients operating on a
single channel, so the reference counting logic is simplified.
- The remoteproc driver (current client) is adapted to use the new API.
The notifier callbacks used within this client is replaced with the
regular callbacks from the newer framework.
- The exported OMAP mailbox API are limited to omap_mbox_save_ctx,
omap_mbox_restore_ctx, omap_mbox_enable_irq & omap_mbox_disable_irq,
with the signature modified to take in the new mbox_chan handle instead
of the OMAP specific omap_mbox handle. The first 2 will be removed when
the OMAP mailbox driver is adapted to runtime_pm. The other exported
API omap_mbox_request_channel will be removed once existing legacy
users are converted to DT.
Signed-off-by: Suman Anna <s-anna@ti.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
---
include/linux/omap-mailbox.h | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/omap-mailbox.h b/include/linux/omap-mailbox.h
index f8322d9cd235..587bbdd31f5a 100644
--- a/include/linux/omap-mailbox.h
+++ b/include/linux/omap-mailbox.h
@@ -10,20 +10,20 @@
#define OMAP_MAILBOX_H
typedef u32 mbox_msg_t;
-struct omap_mbox;
typedef int __bitwise omap_mbox_irq_t;
#define IRQ_TX ((__force omap_mbox_irq_t) 1)
#define IRQ_RX ((__force omap_mbox_irq_t) 2)
-int omap_mbox_msg_send(struct omap_mbox *, mbox_msg_t msg);
+struct mbox_chan;
+struct mbox_client;
-struct omap_mbox *omap_mbox_get(const char *, struct notifier_block *nb);
-void omap_mbox_put(struct omap_mbox *mbox, struct notifier_block *nb);
+struct mbox_chan *omap_mbox_request_channel(struct mbox_client *cl,
+ const char *chan_name);
-void omap_mbox_save_ctx(struct omap_mbox *mbox);
-void omap_mbox_restore_ctx(struct omap_mbox *mbox);
-void omap_mbox_enable_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq);
-void omap_mbox_disable_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq);
+void omap_mbox_save_ctx(struct mbox_chan *chan);
+void omap_mbox_restore_ctx(struct mbox_chan *chan);
+void omap_mbox_enable_irq(struct mbox_chan *chan, omap_mbox_irq_t irq);
+void omap_mbox_disable_irq(struct mbox_chan *chan, omap_mbox_irq_t irq);
#endif /* OMAP_MAILBOX_H */
--
cgit v1.2.1
From 002fe7c831404d179266cfe0dad00a67333256f1 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 26 Nov 2014 20:57:50 +0100
Subject: ASoC: cq93vc: Remove unused state struct
While two of the fields in the cq93vc driver state struct are initialized
none of them are ever acutally read again. So remove the whole struct.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/mfd/davinci_voicecodec.h | 7 -------
1 file changed, 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/mfd/davinci_voicecodec.h b/include/linux/mfd/davinci_voicecodec.h
index cb01496bfa49..8e1cdbef3dad 100644
--- a/include/linux/mfd/davinci_voicecodec.h
+++ b/include/linux/mfd/davinci_voicecodec.h
@@ -99,12 +99,6 @@ struct davinci_vcif {
dma_addr_t dma_rx_addr;
};
-struct cq93vc {
- struct platform_device *pdev;
- struct snd_soc_codec *codec;
- u32 sysclk;
-};
-
struct davinci_vc;
struct davinci_vc {
@@ -122,7 +116,6 @@ struct davinci_vc {
/* Client devices */
struct davinci_vcif davinci_vcif;
- struct cq93vc cq93vc;
};
#endif
--
cgit v1.2.1
From c41884ce0562841b98fa9790c9209c9073121a15 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 24 Nov 2014 15:25:57 +0100
Subject: netfilter: conntrack: avoid zeroing timer
add a __nfct_init_offset annotation member to struct nf_conn to make
it clear which members are covered by the memset when the conntrack
is allocated.
This avoids zeroing timer_list and ct_net; both are already inited
explicitly.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_conntrack.h | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index c8a7db605e03..f0daed2b54d1 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -92,12 +92,18 @@ struct nf_conn {
/* Have we seen traffic both ways yet? (bitset) */
unsigned long status;
- /* If we were expected by an expectation, this will be it */
- struct nf_conn *master;
-
/* Timer function; drops refcnt when it goes off. */
struct timer_list timeout;
+#ifdef CONFIG_NET_NS
+ struct net *ct_net;
+#endif
+ /* all members below initialized via memset */
+ u8 __nfct_init_offset[0];
+
+ /* If we were expected by an expectation, this will be it */
+ struct nf_conn *master;
+
#if defined(CONFIG_NF_CONNTRACK_MARK)
u_int32_t mark;
#endif
@@ -108,9 +114,6 @@ struct nf_conn {
/* Extensions */
struct nf_ct_ext *ext;
-#ifdef CONFIG_NET_NS
- struct net *ct_net;
-#endif
/* Storage reserved for other modules, must be the last member */
union nf_conntrack_proto proto;
--
cgit v1.2.1
From 68b0faa87d167ec87ba2a26be62241ad94eb449b Mon Sep 17 00:00:00 2001
From: Alvaro Neira <alvaroneay@gmail.com>
Date: Wed, 26 Nov 2014 10:21:36 +0100
Subject: netfilter: nf_tables_bridge: export nft_reject_ip*hdr_validate
functions
This patch exports the functions nft_reject_iphdr_validate and
nft_reject_ip6hdr_validate to use it in follow up patches.
These functions check if the IPv4/IPv6 header is correct.
Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/nf_tables_bridge.h | 7 +++++++
1 file changed, 7 insertions(+)
create mode 100644 include/net/netfilter/nf_tables_bridge.h
(limited to 'include')
diff --git a/include/net/netfilter/nf_tables_bridge.h b/include/net/netfilter/nf_tables_bridge.h
new file mode 100644
index 000000000000..511fb79f6dad
--- /dev/null
+++ b/include/net/netfilter/nf_tables_bridge.h
@@ -0,0 +1,7 @@
+#ifndef _NET_NF_TABLES_BRIDGE_H
+#define _NET_NF_TABLES_BRIDGE_H
+
+int nft_bridge_iphdr_validate(struct sk_buff *skb);
+int nft_bridge_ip6hdr_validate(struct sk_buff *skb);
+
+#endif /* _NET_NF_TABLES_BRIDGE_H */
--
cgit v1.2.1
From b59eaf9e2871735ea7cc7e3dbf8bf83bddd786b9 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 26 Nov 2014 12:46:50 +0100
Subject: netfilter: combine IPv4 and IPv6 nf_nat_redirect code in one module
This resolves linking problems with CONFIG_IPV6=n:
net/built-in.o: In function `redirect_tg6':
xt_REDIRECT.c:(.text+0x6d021): undefined reference to `nf_nat_redirect_ipv6'
Reported-by: Andreas Ruprecht <rupran@einserver.de>
Reported-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/net/netfilter/ipv4/nf_nat_redirect.h | 9 ---------
include/net/netfilter/ipv6/nf_nat_redirect.h | 8 --------
include/net/netfilter/nf_nat_redirect.h | 12 ++++++++++++
3 files changed, 12 insertions(+), 17 deletions(-)
delete mode 100644 include/net/netfilter/ipv4/nf_nat_redirect.h
delete mode 100644 include/net/netfilter/ipv6/nf_nat_redirect.h
create mode 100644 include/net/netfilter/nf_nat_redirect.h
(limited to 'include')
diff --git a/include/net/netfilter/ipv4/nf_nat_redirect.h b/include/net/netfilter/ipv4/nf_nat_redirect.h
deleted file mode 100644
index 19e1df3a0a4d..000000000000
--- a/include/net/netfilter/ipv4/nf_nat_redirect.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _NF_NAT_REDIRECT_IPV4_H_
-#define _NF_NAT_REDIRECT_IPV4_H_
-
-unsigned int
-nf_nat_redirect_ipv4(struct sk_buff *skb,
- const struct nf_nat_ipv4_multi_range_compat *mr,
- unsigned int hooknum);
-
-#endif /* _NF_NAT_REDIRECT_IPV4_H_ */
diff --git a/include/net/netfilter/ipv6/nf_nat_redirect.h b/include/net/netfilter/ipv6/nf_nat_redirect.h
deleted file mode 100644
index 1ebdffc461cc..000000000000
--- a/include/net/netfilter/ipv6/nf_nat_redirect.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _NF_NAT_REDIRECT_IPV6_H_
-#define _NF_NAT_REDIRECT_IPV6_H_
-
-unsigned int
-nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range,
- unsigned int hooknum);
-
-#endif /* _NF_NAT_REDIRECT_IPV6_H_ */
diff --git a/include/net/netfilter/nf_nat_redirect.h b/include/net/netfilter/nf_nat_redirect.h
new file mode 100644
index 000000000000..73b729543309
--- /dev/null
+++ b/include/net/netfilter/nf_nat_redirect.h
@@ -0,0 +1,12 @@
+#ifndef _NF_NAT_REDIRECT_H_
+#define _NF_NAT_REDIRECT_H_
+
+unsigned int
+nf_nat_redirect_ipv4(struct sk_buff *skb,
+ const struct nf_nat_ipv4_multi_range_compat *mr,
+ unsigned int hooknum);
+unsigned int
+nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range,
+ unsigned int hooknum);
+
+#endif /* _NF_NAT_REDIRECT_H_ */
--
cgit v1.2.1
From 5f42424354f5b0ca5413b4fb8528d150692c85b7 Mon Sep 17 00:00:00 2001
From: Rojhalat Ibrahim <imr@rtschenk.de>
Date: Tue, 4 Nov 2014 17:12:06 +0100
Subject: gpiolib: allow simultaneous setting of multiple GPIO outputs
Introduce new functions gpiod_set_array & gpiod_set_raw_array to the consumer
interface which allow setting multiple outputs with just one function call.
Also add an optional set_multiple function to the driver interface. Without an
implementation of that function in the chip driver outputs are set
sequentially.
Implementing the set_multiple function in a chip driver allows for:
- Improved performance for certain use cases. The original motivation for this
was the task of configuring an FPGA. In that specific case, where 9 GPIO
lines have to be set many times, configuration time goes down from 48 s to
20 s when using the new function.
- Simultaneous glitch-free setting of multiple pins on any kind of parallel
bus attached to GPIOs provided they all reside on the same chip and bank.
Limitations:
Performance is only improved for normal high-low outputs. Open drain and
open source outputs are always set separately from each other. Those kinds
of outputs could probably be accelerated in a similar way if we could
forgo the error checking when setting GPIO directions.
Change log:
v6: - rebase on current linux-gpio devel branch
v5: - check can_sleep property per chip
- remove superfluous checks
- supplement documentation
v4: - add gpiod_set_array function for setting logical values
- change interface of the set_multiple driver function to use
unsigned long as type for the bit fields
- use generic bitops (which also use unsigned long for bit fields)
- do not use ARCH_NR_GPIOS any more
v3: - add documentation
- change commit message
v2: - use descriptor interface
- allow arbitrary groups of GPIOs spanning multiple chips
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/gpio/consumer.h | 38 ++++++++++++++++++++++++++++++++++++++
include/linux/gpio/driver.h | 4 ++++
2 files changed, 42 insertions(+)
(limited to 'include')
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 12f146fa6604..83c0a61c605d 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -74,14 +74,24 @@ int gpiod_direction_output_raw(struct gpio_desc *desc, int value);
/* Value get/set from non-sleeping context */
int gpiod_get_value(const struct gpio_desc *desc);
void gpiod_set_value(struct gpio_desc *desc, int value);
+void gpiod_set_array(unsigned int array_size,
+ struct gpio_desc **desc_array, int *value_array);
int gpiod_get_raw_value(const struct gpio_desc *desc);
void gpiod_set_raw_value(struct gpio_desc *desc, int value);
+void gpiod_set_raw_array(unsigned int array_size,
+ struct gpio_desc **desc_array, int *value_array);
/* Value get/set from sleeping context */
int gpiod_get_value_cansleep(const struct gpio_desc *desc);
void gpiod_set_value_cansleep(struct gpio_desc *desc, int value);
+void gpiod_set_array_cansleep(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ int *value_array);
int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc);
void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value);
+void gpiod_set_raw_array_cansleep(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ int *value_array);
int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce);
@@ -210,6 +220,13 @@ static inline void gpiod_set_value(struct gpio_desc *desc, int value)
/* GPIO can never have been requested */
WARN_ON(1);
}
+static inline void gpiod_set_array(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ int *value_array)
+{
+ /* GPIO can never have been requested */
+ WARN_ON(1);
+}
static inline int gpiod_get_raw_value(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
@@ -221,6 +238,13 @@ static inline void gpiod_set_raw_value(struct gpio_desc *desc, int value)
/* GPIO can never have been requested */
WARN_ON(1);
}
+static inline void gpiod_set_raw_array(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ int *value_array)
+{
+ /* GPIO can never have been requested */
+ WARN_ON(1);
+}
static inline int gpiod_get_value_cansleep(const struct gpio_desc *desc)
{
@@ -233,6 +257,13 @@ static inline void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
/* GPIO can never have been requested */
WARN_ON(1);
}
+static inline void gpiod_set_array_cansleep(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ int *value_array)
+{
+ /* GPIO can never have been requested */
+ WARN_ON(1);
+}
static inline int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
@@ -245,6 +276,13 @@ static inline void gpiod_set_raw_value_cansleep(struct gpio_desc *desc,
/* GPIO can never have been requested */
WARN_ON(1);
}
+static inline void gpiod_set_raw_array_cansleep(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ int *value_array)
+{
+ /* GPIO can never have been requested */
+ WARN_ON(1);
+}
static inline int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
{
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index ff200a75501e..c497c62889d1 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -32,6 +32,7 @@ struct seq_file;
* @get: returns value for signal "offset"; for output signals this
* returns either the value actually sensed, or zero
* @set: assigns output value for signal "offset"
+ * @set_multiple: assigns output values for multiple signals defined by "mask"
* @set_debounce: optional hook for setting debounce time for specified gpio in
* interrupt triggered gpio chips
* @to_irq: optional hook supporting non-static gpio_to_irq() mappings;
@@ -89,6 +90,9 @@ struct gpio_chip {
unsigned offset);
void (*set)(struct gpio_chip *chip,
unsigned offset, int value);
+ void (*set_multiple)(struct gpio_chip *chip,
+ unsigned long *mask,
+ unsigned long *bits);
int (*set_debounce)(struct gpio_chip *chip,
unsigned offset,
unsigned debounce);
--
cgit v1.2.1
From 6ddd388ab222b66b596342becc76d5031c0e2fc8 Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@gmail.com>
Date: Fri, 21 Nov 2014 15:28:31 -0500
Subject: drm/atomic: track bitmask of planes attached to crtc
Chasing plane->state->crtc of planes that are *not* part of the same
atomic update is racy, making it incredibly awkward (or impossible) to
do something simple like iterate over all planes and figure out which
ones are attached to a crtc.
Solve this by adding a bitmask of currently attached planes in the
crtc-state.
Note that the transitional helpers do not maintain the plane_mask. But
they only support the legacy ioctls, which have sufficient brute-force
locking around plane updates that they can continue to loop over all
planes to see what is attached to a crtc the old way.
Signed-off-by: Rob Clark <robdclark@gmail.com>
[danvet:
- Drop comments about locking in set_crtc_for_plane since they're a
bit misleading - we already should hold lock for the current crtc.
- Also WARN_ON if get_state on the old crtc fails since that should
have been done already.
- Squash in fixup to check get_plane_state return value, reported by
Dan Carpenter and acked by Rob Clark.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic.h | 4 ++--
include/drm/drm_crtc.h | 14 +++++++++++---
2 files changed, 13 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index e224ccfa11ca..ad2229574dd9 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -46,8 +46,8 @@ drm_atomic_get_connector_state(struct drm_atomic_state *state,
struct drm_connector *connector);
int __must_check
-drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state,
- struct drm_crtc *crtc);
+drm_atomic_set_crtc_for_plane(struct drm_atomic_state *state,
+ struct drm_plane *plane, struct drm_crtc *crtc);
void drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state,
struct drm_framebuffer *fb);
int __must_check
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index b459e8fbbc25..4cf6905b57f5 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -231,6 +231,7 @@ struct drm_atomic_state;
* struct drm_crtc_state - mutable CRTC state
* @enable: whether the CRTC should be enabled, gates all other state
* @mode_changed: for use by helpers and drivers when computing state updates
+ * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
* @last_vblank_count: for helpers and drivers to capture the vblank of the
* update to ensure framebuffer cleanup isn't done too early
* @planes_changed: for use by helpers and drivers when computing state updates
@@ -247,6 +248,13 @@ struct drm_crtc_state {
bool planes_changed : 1;
bool mode_changed : 1;
+ /* attached planes bitmask:
+ * WARNING: transitional helpers do not maintain plane_mask so
+ * drivers not converted over to atomic helpers should not rely
+ * on plane_mask being accurate!
+ */
+ u32 plane_mask;
+
/* last_vblank_count: for vblank waits before cleanup */
u32 last_vblank_count;
@@ -438,7 +446,7 @@ struct drm_crtc {
* @state: backpointer to global drm_atomic_state
*/
struct drm_connector_state {
- struct drm_crtc *crtc;
+ struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_connector() */
struct drm_encoder *best_encoder;
@@ -673,8 +681,8 @@ struct drm_connector {
* @state: backpointer to global drm_atomic_state
*/
struct drm_plane_state {
- struct drm_crtc *crtc;
- struct drm_framebuffer *fb;
+ struct drm_crtc *crtc; /* do not write directly, use drm_atomic_set_crtc_for_plane() */
+ struct drm_framebuffer *fb; /* do not write directly, use drm_atomic_set_fb_for_plane() */
struct fence *fence;
/* Signed dest location allows it to be partially off screen */
--
cgit v1.2.1
From dd275956aa176cf2ff00d5437c45f1552f1f3a11 Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@gmail.com>
Date: Tue, 25 Nov 2014 20:29:46 -0500
Subject: drm/atomic: add plane iterator macros
Add helper macros to iterate the current, or incoming set of planes
attached to a crtc. These helpers are only available for drivers
converted to use atomic-helpers.
Signed-off-by: Rob Clark <robdclark@gmail.com>
[danvet: Squash in fixup from Rob to move the planemask iterator to
drm_crtc.h and document it. That one is needed by the atomic ioctl so
can't be in a helper library.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drm_atomic_helper.h | 24 ++++++++++++++++++++++++
include/drm/drm_crtc.h | 13 +++++++++++++
2 files changed, 37 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 70a83197ef66..f956b413311e 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -98,5 +98,29 @@ drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector);
void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector,
struct drm_connector_state *state);
+/**
+ * drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC
+ * @plane: the loop cursor
+ * @crtc: the crtc whose planes are iterated
+ *
+ * This iterates over the current state, useful (for example) when applying
+ * atomic state after it has been checked and swapped. To iterate over the
+ * planes which *will* be attached (for ->atomic_check()) see
+ * drm_crtc_for_each_pending_plane()
+ */
+#define drm_atomic_crtc_for_each_plane(plane, crtc) \
+ drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask)
+
+/**
+ * drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state
+ * @plane: the loop cursor
+ * @crtc_state: the incoming crtc-state
+ *
+ * Similar to drm_crtc_for_each_plane(), but iterates the planes that will be
+ * attached if the specified state is applied. Useful during (for example)
+ * ->atomic_check() operations, to validate the incoming state
+ */
+#define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \
+ drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask)
#endif /* DRM_ATOMIC_HELPER_H_ */
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 4cf6905b57f5..dd2c16e43333 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1062,6 +1062,19 @@ struct drm_mode_config {
uint32_t cursor_width, cursor_height;
};
+/**
+ * drm_for_each_plane_mask - iterate over planes specified by bitmask
+ * @plane: the loop cursor
+ * @dev: the DRM device
+ * @plane_mask: bitmask of plane indices
+ *
+ * Iterate over all planes specified by bitmask.
+ */
+#define drm_for_each_plane_mask(plane, dev, plane_mask) \
+ list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \
+ if ((plane_mask) & (1 << drm_plane_index(plane)))
+
+
#define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
#define obj_to_connector(x) container_of(x, struct drm_connector, base)
#define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
--
cgit v1.2.1
From 417009fb12f9821c30bc9540cba418321c2f14d3 Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@gmail.com>
Date: Tue, 25 Nov 2014 20:33:10 -0500
Subject: drm: fix indentation
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
include/drm/drmP.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index be776fb2db18..8ba35c622e22 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -809,7 +809,7 @@ struct drm_device {
struct drm_local_map *agp_buffer_map;
unsigned int agp_buffer_token;
- struct drm_mode_config mode_config; /**< Current mode config */
+ struct drm_mode_config mode_config; /**< Current mode config */
/** \name GEM information */
/*@{ */
--
cgit v1.2.1
From 79855d178557cc3e3ffd179fd26a64cef48dfb30 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 5 Nov 2014 10:36:28 +0100
Subject: libsas: remove task_collector mode
The task_collector mode (or "latency_injector", (C) Dan Willians) is an
optional I/O path in libsas that queues up scsi commands instead of
directly sending it to the hardware. It generall increases latencies
to in the optiomal case slightly reduce mmio traffic to the hardware.
Only the obsolete aic94xx driver and the mvsas driver allowed to use
it without recompiling the kernel, and most drivers didn't support it
at all.
Remove the giant blob of code to allow better optimizations for scsi-mq
in the future.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
---
include/scsi/libsas.h | 14 +-------------
1 file changed, 1 insertion(+), 13 deletions(-)
(limited to 'include')
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 1f8b33ec612f..832dcc9f86ec 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -365,12 +365,6 @@ struct asd_sas_phy {
struct scsi_core {
struct Scsi_Host *shost;
- struct mutex task_queue_flush;
- spinlock_t task_queue_lock;
- struct list_head task_queue;
- int task_queue_size;
-
- struct task_struct *queue_thread;
};
struct sas_ha_event {
@@ -422,9 +416,6 @@ struct sas_ha_struct {
struct asd_sas_port **sas_port; /* array of valid pointers, must be set */
int num_phys; /* must be set, gt 0, static */
- /* The class calls this to send a task for execution. */
- int lldd_max_execute_num;
- int lldd_queue_size;
int strict_wide_ports; /* both sas_addr and attached_sas_addr must match
* their siblings when forming wide ports */
@@ -612,7 +603,6 @@ struct sas_ssp_task {
struct sas_task {
struct domain_device *dev;
- struct list_head list;
spinlock_t task_state_lock;
unsigned task_state_flags;
@@ -665,8 +655,7 @@ struct sas_domain_function_template {
int (*lldd_dev_found)(struct domain_device *);
void (*lldd_dev_gone)(struct domain_device *);
- int (*lldd_execute_task)(struct sas_task *, int num,
- gfp_t gfp_flags);
+ int (*lldd_execute_task)(struct sas_task *, gfp_t gfp_flags);
/* Task Management Functions. Must be called from process context. */
int (*lldd_abort_task)(struct sas_task *);
@@ -700,7 +689,6 @@ extern void sas_suspend_ha(struct sas_ha_struct *sas_ha);
int sas_set_phy_speed(struct sas_phy *phy,
struct sas_phy_linkrates *rates);
int sas_phy_reset(struct sas_phy *phy, int hard_reset);
-int sas_queue_up(struct sas_task *task);
extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *);
extern int sas_target_alloc(struct scsi_target *);
extern int sas_slave_configure(struct scsi_device *);
--
cgit v1.2.1
From b4b9d2ccf0be61c69213f6ae4e33377c05194ef4 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 26 Nov 2014 14:44:43 -0500
Subject: sunrpc: add debugfs file for displaying client rpc_task queue
It's possible to get a dump of the RPC task queue by writing a value to
/proc/sys/sunrpc/rpc_debug. If you write any value to that file, you get
a dump of the RPC client task list into the log buffer. This is a rather
inconvenient interface however, and makes it hard to get immediate info
about the task queue.
Add a new directory hierarchy under debugfs:
sunrpc/
rpc_clnt/
<clientid>/
Within each clientid directory we create a new "tasks" file that will
dump info similar to what shows up in the log buffer, but with a few
small differences -- we avoid printing raw kernel addresses in favor of
symbolic names and the XID is also displayed.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/sunrpc/clnt.h | 4 ++++
include/linux/sunrpc/debug.h | 31 +++++++++++++++++++++++++++++++
2 files changed, 35 insertions(+)
(limited to 'include')
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 70736b98c721..d86acc63b25f 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -63,6 +63,9 @@ struct rpc_clnt {
struct rpc_rtt cl_rtt_default;
struct rpc_timeout cl_timeout_default;
const struct rpc_program *cl_program;
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+ struct dentry *cl_debugfs; /* debugfs directory */
+#endif
};
/*
@@ -176,5 +179,6 @@ size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
const char *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
int rpc_localaddr(struct rpc_clnt *, struct sockaddr *, size_t);
+const char *rpc_proc_name(const struct rpc_task *task);
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_CLNT_H */
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 43f38ee9668c..835339707094 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -53,9 +53,40 @@ extern unsigned int nlm_debug;
/*
* Sysctl interface for RPC debugging
*/
+
+struct rpc_clnt;
+
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
void rpc_register_sysctl(void);
void rpc_unregister_sysctl(void);
+int sunrpc_debugfs_init(void);
+void sunrpc_debugfs_exit(void);
+int rpc_clnt_debugfs_register(struct rpc_clnt *);
+void rpc_clnt_debugfs_unregister(struct rpc_clnt *);
+#else
+static inline int
+sunrpc_debugfs_init(void)
+{
+ return 0;
+}
+
+static inline void
+sunrpc_debugfs_exit(void)
+{
+ return;
+}
+
+static inline int
+rpc_clnt_debugfs_register(struct rpc_clnt *clnt)
+{
+ return 0;
+}
+
+static inline void
+rpc_clnt_debugfs_unregister(struct rpc_clnt *clnt)
+{
+ return;
+}
#endif
#endif /* _LINUX_SUNRPC_DEBUG_H_ */
--
cgit v1.2.1
From 388f0c776781fe64ce951701bfe712b2182a31f2 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 26 Nov 2014 14:44:44 -0500
Subject: sunrpc: add a debugfs rpc_xprt directory with an info file in it
Add a new directory heirarchy under the debugfs sunrpc/ directory:
sunrpc/
rpc_xprt/
<xprt id>/
Within that directory, we can put files that give info about the
xprts. We do have the (minor) problem that there is no succinct,
unique identifier for rpc_xprts. So we generate them synthetically
with a static atomic_t counter.
For now, this directory just holds an "info" file, but we may add
other files to it in the future.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
include/linux/sunrpc/debug.h | 15 +++++++++++++++
include/linux/sunrpc/xprt.h | 3 +++
2 files changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 835339707094..c57d8ea0716c 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -55,6 +55,7 @@ extern unsigned int nlm_debug;
*/
struct rpc_clnt;
+struct rpc_xprt;
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
void rpc_register_sysctl(void);
@@ -63,6 +64,8 @@ int sunrpc_debugfs_init(void);
void sunrpc_debugfs_exit(void);
int rpc_clnt_debugfs_register(struct rpc_clnt *);
void rpc_clnt_debugfs_unregister(struct rpc_clnt *);
+int rpc_xprt_debugfs_register(struct rpc_xprt *);
+void rpc_xprt_debugfs_unregister(struct rpc_xprt *);
#else
static inline int
sunrpc_debugfs_init(void)
@@ -87,6 +90,18 @@ rpc_clnt_debugfs_unregister(struct rpc_clnt *clnt)
{
return;
}
+
+static inline int
+rpc_xprt_debugfs_register(struct rpc_xprt *xprt)
+{
+ return 0;
+}
+
+static inline void
+rpc_xprt_debugfs_unregister(struct rpc_xprt *xprt)
+{
+ return;
+}
#endif
#endif /* _LINUX_SUNRPC_DEBUG_H_ */
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index cf391eef2e6d..9d27ac45b909 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -239,6 +239,9 @@ struct rpc_xprt {
struct net *xprt_net;
const char *servername;
const char *address_strings[RPC_DISPLAY_MAX];
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+ struct dentry *debugfs; /* debugfs directory */
+#endif
};
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
--
cgit v1.2.1
From 4dcd78d80d37a360f5faab422a4e48b2cfd4abe4 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Thu, 27 Nov 2014 14:26:00 +0800
Subject: ACPICA: iASL: Add support for to_PLD macro.
This macro is intended to simplify the constuction of _PLD buffers.
NOTE: Prototype only, subject to change before this macro is
added to the ACPI specification. David E. Box.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acbuffer.h | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/acpi/acbuffer.h b/include/acpi/acbuffer.h
index 88cb477524a6..d5ec6c87810f 100644
--- a/include/acpi/acbuffer.h
+++ b/include/acpi/acbuffer.h
@@ -111,7 +111,9 @@ struct acpi_gtm_info {
struct acpi_pld_info {
u8 revision;
u8 ignore_color;
- u32 color;
+ u8 red;
+ u8 green;
+ u8 blue;
u16 width;
u16 height;
u8 user_visible;
@@ -155,8 +157,14 @@ struct acpi_pld_info {
#define ACPI_PLD_GET_IGNORE_COLOR(dword) ACPI_GET_BITS (dword, 7, ACPI_1BIT_MASK)
#define ACPI_PLD_SET_IGNORE_COLOR(dword,value) ACPI_SET_BITS (dword, 7, ACPI_1BIT_MASK, value) /* Offset 7, Len 1 */
-#define ACPI_PLD_GET_COLOR(dword) ACPI_GET_BITS (dword, 8, ACPI_24BIT_MASK)
-#define ACPI_PLD_SET_COLOR(dword,value) ACPI_SET_BITS (dword, 8, ACPI_24BIT_MASK, value) /* Offset 8, Len 24 */
+#define ACPI_PLD_GET_RED(dword) ACPI_GET_BITS (dword, 8, ACPI_8BIT_MASK)
+#define ACPI_PLD_SET_RED(dword,value) ACPI_SET_BITS (dword, 8, ACPI_8BIT_MASK, value) /* Offset 8, Len 8 */
+
+#define ACPI_PLD_GET_GREEN(dword) ACPI_GET_BITS (dword, 16, ACPI_8BIT_MASK)
+#define ACPI_PLD_SET_GREEN(dword,value) ACPI_SET_BITS (dword, 16, ACPI_8BIT_MASK, value) /* Offset 16, Len 8 */
+
+#define ACPI_PLD_GET_BLUE(dword) ACPI_GET_BITS (dword, 24, ACPI_8BIT_MASK)
+#define ACPI_PLD_SET_BLUE(dword,value) ACPI_SET_BITS (dword, 24, ACPI_8BIT_MASK, value) /* Offset 24, Len 8 */
/* Second 32-bit dword, bits 33:63 */
--
cgit v1.2.1
From e5874591d67f6f4ee10df88d321692aeccb4bcf4 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Thu, 27 Nov 2014 14:26:35 +0800
Subject: ACPICA: Update version to 20141107.
Version 20141107.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpixf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index ab2acf629a64..5ba78464c1b1 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20140926
+#define ACPI_CA_VERSION 0x20141107
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
--
cgit v1.2.1
From 6d288b169bdfbed28d308b077af3d9196025cd8b Mon Sep 17 00:00:00 2001
From: Sonny Rao <sonnyrao@chromium.org>
Date: Tue, 18 Nov 2014 23:15:19 -0800
Subject: clk: rockchip: rk3288 export i2s0_clkout for use in DT
This exposes the clock that comes out of the i2s block which generally
goes to the audio codec.
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
[removed CLK_SET_RATE_PARENT from original patch]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
include/dt-bindings/clock/rk3288-cru.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index 8e19ed58db33..edf011039b07 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -71,6 +71,7 @@
#define SCLK_HDMI_CEC 110
#define SCLK_HEVC_CABAC 111
#define SCLK_HEVC_CORE 112
+#define SCLK_I2S0_OUT 113
#define DCLK_VOP0 190
#define DCLK_VOP1 191
--
cgit v1.2.1
From c1c9f2cced4e3ba22b3fc25603dd3bd2ec7dc173 Mon Sep 17 00:00:00 2001
From: Alexandru M Stan <amstan@chromium.org>
Date: Wed, 26 Nov 2014 17:30:26 -0800
Subject: clk: rockchip: add bindings for the mmc clocks
These clocks represent the physical clocks (including phases) and they will
later be used for clock phase tuning.
Suggested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
include/dt-bindings/clock/rk3288-cru.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h
index edf011039b07..f60ce72a2b2c 100644
--- a/include/dt-bindings/clock/rk3288-cru.h
+++ b/include/dt-bindings/clock/rk3288-cru.h
@@ -72,6 +72,14 @@
#define SCLK_HEVC_CABAC 111
#define SCLK_HEVC_CORE 112
#define SCLK_I2S0_OUT 113
+#define SCLK_SDMMC_DRV 114
+#define SCLK_SDIO0_DRV 115
+#define SCLK_SDIO1_DRV 116
+#define SCLK_EMMC_DRV 117
+#define SCLK_SDMMC_SAMPLE 118
+#define SCLK_SDIO0_SAMPLE 119
+#define SCLK_SDIO1_SAMPLE 120
+#define SCLK_EMMC_SAMPLE 121
#define DCLK_VOP0 190
#define DCLK_VOP1 191
--
cgit v1.2.1
From 766a85d7bc5d7f1ddd6de28bdb844eae45ec63b0 Mon Sep 17 00:00:00 2001
From: AKASHI Takahiro <takahiro.akashi@linaro.org>
Date: Fri, 28 Nov 2014 05:26:34 +0000
Subject: arm64: ptrace: add NT_ARM_SYSTEM_CALL regset
This regeset is intended to be used to get and set a system call number
while tracing.
There was some discussion about possible approaches to do so:
(1) modify x8 register with ptrace(PTRACE_SETREGSET) indirectly,
and update regs->syscallno later on in syscall_trace_enter(), or
(2) define a dedicated regset for this purpose as on s390, or
(3) support ptrace(PTRACE_SET_SYSCALL) as on arch/arm
Thinking of the fact that user_pt_regs doesn't expose 'syscallno' to
tracer as well as that secure_computing() expects a changed syscall number,
especially case of -1, to be visible before this function returns in
syscall_trace_enter(), (1) doesn't work well.
We will take (2) since it looks much cleaner.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/uapi/linux/elf.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index ea9bf2561b9e..71e1d0ed92f7 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -397,6 +397,7 @@ typedef struct elf64_shdr {
#define NT_ARM_TLS 0x401 /* ARM TLS register */
#define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */
#define NT_ARM_HW_WATCH 0x403 /* ARM hardware watchpoint registers */
+#define NT_ARM_SYSTEM_CALL 0x404 /* ARM system call number */
#define NT_METAG_CBUF 0x500 /* Metag catch buffer registers */
#define NT_METAG_RPIPE 0x501 /* Metag read pipeline state */
#define NT_METAG_TLS 0x502 /* Metag TLS pointer */
--
cgit v1.2.1
From 65a2ae8d5bd0ab9fb5846c0223d5dcf74e87f9d2 Mon Sep 17 00:00:00 2001
From: AKASHI Takahiro <takahiro.akashi@linaro.org>
Date: Fri, 28 Nov 2014 05:26:36 +0000
Subject: asm-generic: add generic seccomp.h for secure computing mode 1
Those values (__NR_seccomp_*) are used solely in secure_computing()
to identify mode 1 system calls. If compat system calls have different
syscall numbers, asm/seccomp.h may override them.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/asm-generic/seccomp.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 include/asm-generic/seccomp.h
(limited to 'include')
diff --git a/include/asm-generic/seccomp.h b/include/asm-generic/seccomp.h
new file mode 100644
index 000000000000..9fa1f653ed3b
--- /dev/null
+++ b/include/asm-generic/seccomp.h
@@ -0,0 +1,30 @@
+/*
+ * include/asm-generic/seccomp.h
+ *
+ * Copyright (C) 2014 Linaro Limited
+ * Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASM_GENERIC_SECCOMP_H
+#define _ASM_GENERIC_SECCOMP_H
+
+#include <linux/unistd.h>
+
+#if defined(CONFIG_COMPAT) && !defined(__NR_seccomp_read_32)
+#define __NR_seccomp_read_32 __NR_read
+#define __NR_seccomp_write_32 __NR_write
+#define __NR_seccomp_exit_32 __NR_exit
+#define __NR_seccomp_sigreturn_32 __NR_rt_sigreturn
+#endif /* CONFIG_COMPAT && ! already defined */
+
+#define __NR_seccomp_read __NR_read
+#define __NR_seccomp_write __NR_write
+#define __NR_seccomp_exit __NR_exit
+#ifndef __NR_seccomp_sigreturn
+#define __NR_seccomp_sigreturn __NR_rt_sigreturn
+#endif
+
+#endif /* _ASM_GENERIC_SECCOMP_H */
--
cgit v1.2.1
From 05afedcb89189df5cea30a13b2a5b4aa70572749 Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Tue, 23 Sep 2014 16:38:05 -0700
Subject: NFC: digital: Add Target-mode NFC-DEP DID Support
When in Target mode, the Initiator specifies whether
subsequent DEP_REQ and DEP_RES frames will include
a DID byte by the value passed in the ATR_REQ. If
the DID value in the ATR_REQ is '0' then no DID
byte will be included. If the DID value is between
'1' and '14' then a DID byte containing the same
value must be included in subsequent DEP_REQ and
DEP_RES frames. Any other DID value is invalid.
This is specified in sections 14.8.1.2 and 14.8.2.2
of the NFC Digital Protocol Spec.
Checking the DID value (if it should be there at all),
is not currently supported by the digital layer's
NFC-DEP code. Add this support by remembering the
DID value in the ATR_REQ, checking the DID value of
received DEP_REQ frames (if it should be there at all),
and including the remembered DID value in DEP_RES
frames when appropriate.
Reviewed-by: Thierry Escande <thierry.escande@linux.intel.com>
Tested-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/digital.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index d9a5cf7ac1c4..80c6183989f3 100644
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -225,6 +225,7 @@ struct nfc_digital_dev {
u8 curr_protocol;
u8 curr_rf_tech;
u8 curr_nfc_dep_pni;
+ u8 did;
u16 target_fsc;
--
cgit v1.2.1
From b08147cbc4d1b63d65f6c7c522fed9ef3212bc52 Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Tue, 23 Sep 2014 16:38:08 -0700
Subject: NFC: digital: Implement NFC-DEP max payload lengths
The maximum payload for NFC-DEP exchanges (i.e., the
number of bytes between SoD and EoD) is negotiated
using the ATR_REQ, ATR_RES, and PSL_REQ commands.
The valid maximum lengths are 64, 128, 192, and 254
bytes.
Currently, NFC-DEP code assumes that both sides are
always using 254 byte maximums and ignores attempts
by the peer to change it. Instead, implement the
negotiation code, enforce the local maximum when
receiving data from the peer, and don't send payloads
that exceed the remote's maximum. The default local
maximum is 254 bytes.
Reviewed-by: Thierry Escande <thierry.escande@linux.intel.com>
Tested-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/digital.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index 80c6183989f3..42dbc6e6ee21 100644
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -227,6 +227,9 @@ struct nfc_digital_dev {
u8 curr_nfc_dep_pni;
u8 did;
+ u8 local_payload_max;
+ u8 remote_payload_max;
+
u16 target_fsc;
int (*skb_check_crc)(struct sk_buff *skb);
--
cgit v1.2.1
From 3bd2a5bcc6cd7b8d588aa9ffa947177721eba18e Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Tue, 23 Sep 2014 16:38:09 -0700
Subject: NFC: digital: Add NFC-DEP Send Chaining Support
When the NFC-DEP code is given a packet to send
that is larger than the peer's maximum payload,
its supposed to set the 'MI' bit in the 'I' PDU's
Protocol Frame Byte (PFB). Setting this bit
indicates that NFC-DEP chaining is to occur.
When NFC-DEP chaining is progress, sender 'I' PDUs
are acknowledged with 'ACK' PDUs until the last 'I'
PDU in the chain (which has the 'MI' bit cleared)
is responded to with a normal 'I' PDU. This can
occur while in Initiator mode or in Target mode.
Sender NFC-DEP chaining is currently not implemented
in the digital layer so add that support. Unfortunately,
since sending a frame may require writing the CRC to the
end of the data, the relevant data part of the original
skb must be copied for each intermediate frame.
Reviewed-by: Thierry Escande <thierry.escande@linux.intel.com>
Tested-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/digital.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index 42dbc6e6ee21..2fdff00e06cd 100644
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -230,6 +230,9 @@ struct nfc_digital_dev {
u8 local_payload_max;
u8 remote_payload_max;
+ struct sk_buff *chaining_skb;
+ struct digital_data_exch *data_exch;
+
u16 target_fsc;
int (*skb_check_crc)(struct sk_buff *skb);
--
cgit v1.2.1
From a80509c76bf2b10dae76f3caea343ac4b85c72b4 Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Tue, 23 Sep 2014 16:38:11 -0700
Subject: NFC: digital: Add NFC-DEP Initiator-side NACK Support
When an NFC-DEP Initiator receives a frame with
an incorrect CRC or with a parity error, and the
frame is at least 4 bytes long, its supposed to
send a NACK to the Target. The Initiator can
send up to 'N(retry,nack)' consecutive NACKs
where 2 <= 'N(retry,nack)' <= 5. When the limit
is exceeded, a PROTOCOL EXCEPTION is raised.
Any other type of transmission error is to be
ignored and the Initiator should continue
waiting for a new frame. This is described
in section 14.12.5.4 of the NFC Digital Protocol
Spec.
The digital layer's NFC-DEP code doesn't implement
any of this so add it. This support diverges from
the spec in two significant ways:
a) NACKs will be sent for ANY error reported by the
driver except a timeout. This is done because
there is currently no way for the digital layer
to distinguish a CRC or parity error from any
other type of error reported by the driver.
b) All other errors will cause a PROTOCOL EXCEPTION
even frames with CRC errors that are less than 4
bytes.
The value chosen for 'N(retry,nack)' is 2.
Targets do not send NACK PDUs.
Reviewed-by: Thierry Escande <thierry.escande@linux.intel.com>
Tested-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/digital.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index 2fdff00e06cd..2fd498cdb818 100644
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -233,6 +233,8 @@ struct nfc_digital_dev {
struct sk_buff *chaining_skb;
struct digital_data_exch *data_exch;
+ int nack_count;
+
u16 target_fsc;
int (*skb_check_crc)(struct sk_buff *skb);
--
cgit v1.2.1
From 49dbb14e30c3249f98fe243c3e21b91d10c5c59b Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Tue, 23 Sep 2014 16:38:12 -0700
Subject: NFC: digital: Add NFC-DEP Target-side NACK Support
When an NFC-DEP Target receives a NACK PDU with
a PNI equal to 1 less than the current PNI, it
is supposed to re-send the last PDU. This is
implied in section 14.12.5.4 of the NFC Digital
Protocol Spec.
The digital layer's NFC-DEP code doesn't implement
Target-side NACK handing so add it. The last PDU
that was sent is saved in the 'nfc_digital_dev'
structure's 'saved_skb' member. The skb will have
an additional reference taken to ensure that the skb
isn't freed when the driver performs a kfree_skb()
on the skb. The length of the skb/PDU is also saved
so the length can be restored when re-sending the PDU
in the skb (the driver will perform an skb_pull() so
an skb_push() needs to be done to restore the skb's
data pointer/length).
Reviewed-by: Thierry Escande <thierry.escande@linux.intel.com>
Tested-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/digital.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index 2fd498cdb818..7400a8126cd1 100644
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -235,6 +235,9 @@ struct nfc_digital_dev {
int nack_count;
+ struct sk_buff *saved_skb;
+ unsigned int saved_skb_len;
+
u16 target_fsc;
int (*skb_check_crc)(struct sk_buff *skb);
--
cgit v1.2.1
From 384ab1d174a11292af63674a26eaa99864db9b48 Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Tue, 23 Sep 2014 16:38:13 -0700
Subject: NFC: digital: Add NFC-DEP Initiator-side ATN Support
When an NFC-DEP Initiator times out when waiting for
a DEP_RES from the Target, its supposed to send an
ATN to the Target. The Target should respond to the
ATN with a similar ATN PDU and the Initiator can then
resend the last non-ATN PDU that it sent. No more
than 'N(retry,atn)' are to be send where
2 <= 'N(retry,atn)' <= 5. If the Initiator had just
sent a NACK PDU when the timeout occurred, it is to
continue sending NACKs until 'N(retry,nack)' NACKs
have been send. This is described in section
14.12.5.6 of the NFC-DEP Digital Protocol Spec.
The digital layer's NFC-DEP code doesn't implement
this so add that support.
The value chosen for 'N(retry,atn)' is 2.
Reviewed-by: Thierry Escande <thierry.escande@linux.intel.com>
Tested-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/digital.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index 7400a8126cd1..0ae101eef0f4 100644
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -233,6 +233,7 @@ struct nfc_digital_dev {
struct sk_buff *chaining_skb;
struct digital_data_exch *data_exch;
+ int atn_count;
int nack_count;
struct sk_buff *saved_skb;
--
cgit v1.2.1
From 90d78c13965859d87622b37a221ebf29522585a8 Mon Sep 17 00:00:00 2001
From: Julien Lefrique <lefrique@marvell.com>
Date: Tue, 21 Oct 2014 16:52:45 +0200
Subject: NFC: NCI: Enable NFC-DEP in Listen A and Listen F
Send LA_SEL_INFO and LF_PROTOCOL_TYPE with NFC-DEP protocol enabled.
Configure 212 Kbit/s and 412 Kbit/s bit rates for Listen F.
Signed-off-by: Julien Lefrique <lefrique@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
index 9eca9ae2280c..36cf65386b86 100644
--- a/include/net/nfc/nci.h
+++ b/include/net/nfc/nci.h
@@ -106,6 +106,16 @@
/* NCI Configuration Parameter Tags */
#define NCI_PN_ATR_REQ_GEN_BYTES 0x29
+#define NCI_LA_SEL_INFO 0x32
+#define NCI_LF_PROTOCOL_TYPE 0x50
+#define NCI_LF_CON_BITR_F 0x54
+
+/* NCI Configuration Parameters masks */
+#define NCI_LA_SEL_INFO_ISO_DEP_MASK 0x20
+#define NCI_LA_SEL_INFO_NFC_DEP_MASK 0x40
+#define NCI_LF_PROTOCOL_TYPE_NFC_DEP_MASK 0x02
+#define NCI_LF_CON_BITR_F_212 0x02
+#define NCI_LF_CON_BITR_F_424 0x04
/* NCI Reset types */
#define NCI_RESET_TYPE_KEEP_CONFIG 0x00
--
cgit v1.2.1
From a99903ec4566eeeaaaf611499cae00abbe844938 Mon Sep 17 00:00:00 2001
From: Julien Lefrique <lefrique@marvell.com>
Date: Tue, 21 Oct 2014 16:52:46 +0200
Subject: NFC: NCI: Handle Target mode activation
Changes:
* Extract the Listen mode activation parameters from RF_INTF_ACTIVATED_NTF.
* Store the General Bytes of ATR_REQ.
* Signal that Target mode is activated in case of an activation in NFC-DEP.
* Update the NCI state accordingly.
* Use the various constants defined in nfc.h.
* Fix the ATR_REQ and ATR_RES maximum size. As per NCI 1.0 and NCI 1.1, the
Activation Parameters for both Poll and Listen mode contain all the bytes of
ATR_REQ/ATR_RES starting and including Byte 3 as defined in [DIGITAL].
In [DIGITAL], the maximum size of ATR_REQ/ATR_RES is 64 bytes and they are
numbered starting from Byte 1.
Signed-off-by: Julien Lefrique <lefrique@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci.h | 26 +++++++++++++++++++++-----
include/net/nfc/nci_core.h | 3 +++
include/net/nfc/nfc.h | 2 ++
include/uapi/linux/nfc.h | 20 +++++++++++---------
4 files changed, 37 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
index 36cf65386b86..fffadc706e06 100644
--- a/include/net/nfc/nci.h
+++ b/include/net/nfc/nci.h
@@ -28,6 +28,8 @@
#ifndef __NCI_H
#define __NCI_H
+#include <net/nfc/nfc.h>
+
/* NCI constants */
#define NCI_MAX_NUM_MAPPING_CONFIGS 10
#define NCI_MAX_NUM_RF_CONFIGS 10
@@ -73,6 +75,8 @@
#define NCI_NFC_A_ACTIVE_LISTEN_MODE 0x83
#define NCI_NFC_F_ACTIVE_LISTEN_MODE 0x85
+#define NCI_RF_TECH_MODE_LISTEN_MASK 0x80
+
/* NCI RF Technologies */
#define NCI_NFC_RF_TECHNOLOGY_A 0x00
#define NCI_NFC_RF_TECHNOLOGY_B 0x01
@@ -324,26 +328,31 @@ struct nci_core_intf_error_ntf {
struct rf_tech_specific_params_nfca_poll {
__u16 sens_res;
__u8 nfcid1_len; /* 0, 4, 7, or 10 Bytes */
- __u8 nfcid1[10];
+ __u8 nfcid1[NFC_NFCID1_MAXSIZE];
__u8 sel_res_len; /* 0 or 1 Bytes */
__u8 sel_res;
} __packed;
struct rf_tech_specific_params_nfcb_poll {
__u8 sensb_res_len;
- __u8 sensb_res[12]; /* 11 or 12 Bytes */
+ __u8 sensb_res[NFC_SENSB_RES_MAXSIZE]; /* 11 or 12 Bytes */
} __packed;
struct rf_tech_specific_params_nfcf_poll {
__u8 bit_rate;
__u8 sensf_res_len;
- __u8 sensf_res[18]; /* 16 or 18 Bytes */
+ __u8 sensf_res[NFC_SENSF_RES_MAXSIZE]; /* 16 or 18 Bytes */
} __packed;
struct rf_tech_specific_params_nfcv_poll {
__u8 res_flags;
__u8 dsfid;
- __u8 uid[8]; /* 8 Bytes */
+ __u8 uid[NFC_ISO15693_UID_MAXSIZE]; /* 8 Bytes */
+} __packed;
+
+struct rf_tech_specific_params_nfcf_listen {
+ __u8 local_nfcid2_len;
+ __u8 local_nfcid2[NFC_NFCID2_MAXSIZE]; /* 0 or 8 Bytes */
} __packed;
struct nci_rf_discover_ntf {
@@ -375,7 +384,12 @@ struct activation_params_nfcb_poll_iso_dep {
struct activation_params_poll_nfc_dep {
__u8 atr_res_len;
- __u8 atr_res[63];
+ __u8 atr_res[NFC_ATR_RES_MAXSIZE - 2]; /* ATR_RES from byte 3 */
+};
+
+struct activation_params_listen_nfc_dep {
+ __u8 atr_req_len;
+ __u8 atr_req[NFC_ATR_REQ_MAXSIZE - 2]; /* ATR_REQ from byte 3 */
};
struct nci_rf_intf_activated_ntf {
@@ -392,6 +406,7 @@ struct nci_rf_intf_activated_ntf {
struct rf_tech_specific_params_nfcb_poll nfcb_poll;
struct rf_tech_specific_params_nfcf_poll nfcf_poll;
struct rf_tech_specific_params_nfcv_poll nfcv_poll;
+ struct rf_tech_specific_params_nfcf_listen nfcf_listen;
} rf_tech_specific_params;
__u8 data_exch_rf_tech_and_mode;
@@ -403,6 +418,7 @@ struct nci_rf_intf_activated_ntf {
struct activation_params_nfca_poll_iso_dep nfca_poll_iso_dep;
struct activation_params_nfcb_poll_iso_dep nfcb_poll_iso_dep;
struct activation_params_poll_nfc_dep poll_nfc_dep;
+ struct activation_params_listen_nfc_dep listen_nfc_dep;
} activation_params;
} __packed;
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 75d10e625c49..cfea60748a39 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -4,6 +4,7 @@
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Copyright (C) 2013 Intel Corporation. All rights reserved.
+ * Copyright (C) 2014 Marvell International Ltd.
*
* Written by Ilan Elias <ilane@ti.com>
*
@@ -49,6 +50,8 @@ enum nci_state {
NCI_W4_ALL_DISCOVERIES,
NCI_W4_HOST_SELECT,
NCI_POLL_ACTIVE,
+ NCI_LISTEN_ACTIVE,
+ NCI_LISTEN_SLEEP,
};
/* NCI timeouts */
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 6c583e244de2..12adb817c27a 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -1,5 +1,6 @@
/*
* Copyright (C) 2011 Instituto Nokia de Tecnologia
+ * Copyright (C) 2014 Marvell International Ltd.
*
* Authors:
* Lauro Ramos Venancio <lauro.venancio@openbossa.org>
@@ -87,6 +88,7 @@ struct nfc_ops {
#define NFC_TARGET_IDX_ANY -1
#define NFC_MAX_GT_LEN 48
#define NFC_ATR_RES_GT_OFFSET 15
+#define NFC_ATR_REQ_GT_OFFSET 14
/**
* struct nfc_target - NFC target descriptiom
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index 9b19b4461928..19a75daac14c 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -196,15 +196,17 @@ enum nfc_sdp_attr {
};
#define NFC_SDP_ATTR_MAX (__NFC_SDP_ATTR_AFTER_LAST - 1)
-#define NFC_DEVICE_NAME_MAXSIZE 8
-#define NFC_NFCID1_MAXSIZE 10
-#define NFC_NFCID2_MAXSIZE 8
-#define NFC_NFCID3_MAXSIZE 10
-#define NFC_SENSB_RES_MAXSIZE 12
-#define NFC_SENSF_RES_MAXSIZE 18
-#define NFC_GB_MAXSIZE 48
-#define NFC_FIRMWARE_NAME_MAXSIZE 32
-#define NFC_ISO15693_UID_MAXSIZE 8
+#define NFC_DEVICE_NAME_MAXSIZE 8
+#define NFC_NFCID1_MAXSIZE 10
+#define NFC_NFCID2_MAXSIZE 8
+#define NFC_NFCID3_MAXSIZE 10
+#define NFC_SENSB_RES_MAXSIZE 12
+#define NFC_SENSF_RES_MAXSIZE 18
+#define NFC_ATR_REQ_MAXSIZE 64
+#define NFC_ATR_RES_MAXSIZE 64
+#define NFC_GB_MAXSIZE 48
+#define NFC_FIRMWARE_NAME_MAXSIZE 32
+#define NFC_ISO15693_UID_MAXSIZE 8
/* NFC protocols */
#define NFC_PROTO_JEWEL 1
--
cgit v1.2.1
From 529ee06682a5691eec25991c506357caf7341c93 Mon Sep 17 00:00:00 2001
From: Julien Lefrique <lefrique@marvell.com>
Date: Tue, 21 Oct 2014 16:52:47 +0200
Subject: NFC: NCI: Configure ATR_RES general bytes
The Target responds to the ATR_REQ with the ATR_RES. Configure the General
Bytes in ATR_RES with the first three octets equal to the NFC Forum LLCP
magic number, followed by some LLC Parameters TLVs described in section
4.5 of [LLCP].
Signed-off-by: Julien Lefrique <lefrique@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
index fffadc706e06..e7257a4653b4 100644
--- a/include/net/nfc/nci.h
+++ b/include/net/nfc/nci.h
@@ -110,6 +110,7 @@
/* NCI Configuration Parameter Tags */
#define NCI_PN_ATR_REQ_GEN_BYTES 0x29
+#define NCI_LN_ATR_RES_GEN_BYTES 0x61
#define NCI_LA_SEL_INFO 0x32
#define NCI_LF_PROTOCOL_TYPE 0x50
#define NCI_LF_CON_BITR_F 0x54
--
cgit v1.2.1
From ad932f046fbe9839479350e7b88082a7d1dea498 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Thu, 27 Nov 2014 09:44:55 +0200
Subject: cfg80211: leave invalid channels on regdomain change
When the regulatory settings change, some channels might become invalid.
Disconnect interfaces acting on these channels, after giving userspace
code a grace period to leave them.
This mode is currently opt-in, and not all interface operating modes are
supported for regulatory-enforcement checks. A wiphy that wishes to use
the new enforcement code must specify an appropriate regulatory flag,
and all its supported interface modes must be supported by the checking
code.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@suse.com>
[fix some indentation, typos]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/regulatory.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/net/regulatory.h b/include/net/regulatory.h
index dad7ab20a8cb..b776d72d84be 100644
--- a/include/net/regulatory.h
+++ b/include/net/regulatory.h
@@ -136,6 +136,17 @@ struct regulatory_request {
* otherwise initiating radiation is not allowed. This will enable the
* relaxations enabled under the CFG80211_REG_RELAX_NO_IR configuration
* option
+ * @REGULATORY_IGNORE_STALE_KICKOFF: the regulatory core will _not_ make sure
+ * all interfaces on this wiphy reside on allowed channels. If this flag
+ * is not set, upon a regdomain change, the interfaces are given a grace
+ * period (currently 60 seconds) to disconnect or move to an allowed
+ * channel. Interfaces on forbidden channels are forcibly disconnected.
+ * Currently these types of interfaces are supported for enforcement:
+ * NL80211_IFTYPE_ADHOC, NL80211_IFTYPE_STATION, NL80211_IFTYPE_AP,
+ * NL80211_IFTYPE_AP_VLAN, NL80211_IFTYPE_MONITOR,
+ * NL80211_IFTYPE_P2P_CLIENT, NL80211_IFTYPE_P2P_GO,
+ * NL80211_IFTYPE_P2P_DEVICE. The flag will be set by default if a device
+ * includes any modes unsupported for enforcement checking.
*/
enum ieee80211_regulatory_flags {
REGULATORY_CUSTOM_REG = BIT(0),
@@ -144,6 +155,7 @@ enum ieee80211_regulatory_flags {
REGULATORY_COUNTRY_IE_FOLLOW_POWER = BIT(3),
REGULATORY_COUNTRY_IE_IGNORE = BIT(4),
REGULATORY_ENABLE_RELAX_NO_IR = BIT(5),
+ REGULATORY_IGNORE_STALE_KICKOFF = BIT(6),
};
struct ieee80211_freq_range {
--
cgit v1.2.1
From 8e53b0f190af2954309bbad76a78177ead15d824 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Tue, 25 Nov 2014 17:16:31 +0900
Subject: gpio: remove const modifier from gpiod_get_direction()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Although gpiod_get_direction() can be considered side-effect free for
consumers, its internals involve setting or clearing bits in the
affected GPIO descriptor, for which we need to force-cast the const
descriptor variable to non-const. This could lead to incorrect behavior
if the compiler decides to optimize here, so remove this const
attribute. The intent is to make gpiod_get_direction() private anyway,
so it does not really matter.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
include/linux/gpio/consumer.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 83c0a61c605d..d54d158ca327 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -66,7 +66,7 @@ __devm_gpiod_get_index_optional(struct device *dev, const char *con_id,
unsigned int index, enum gpiod_flags flags);
void devm_gpiod_put(struct device *dev, struct gpio_desc *desc);
-int gpiod_get_direction(const struct gpio_desc *desc);
+int gpiod_get_direction(struct gpio_desc *desc);
int gpiod_direction_input(struct gpio_desc *desc);
int gpiod_direction_output(struct gpio_desc *desc, int value);
int gpiod_direction_output_raw(struct gpio_desc *desc, int value);
--
cgit v1.2.1
From f684565e0af43586bfc3e005d173f94b0f902a5d Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 19 Nov 2014 20:08:08 +0100
Subject: mac80211: add tx_status_noskb to rate_control_ops
This op works like .tx_status, except it does not need access to the
skb. This will be used by drivers that cannot match tx status
information to specific packets.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 66cbfe46428d..01dfd22e45fd 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4837,6 +4837,10 @@ struct rate_control_ops {
void (*free_sta)(void *priv, struct ieee80211_sta *sta,
void *priv_sta);
+ void (*tx_status_noskb)(void *priv,
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct ieee80211_tx_info *info);
void (*tx_status)(void *priv, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta,
struct sk_buff *skb);
--
cgit v1.2.1
From f027c2aca0cf43e0f15fc8de8841f7b566163d94 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 19 Nov 2014 20:08:13 +0100
Subject: mac80211: add ieee80211_tx_status_noskb
This can be used by drivers that cannot reliably map tx status
information onto specific skbs.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 01dfd22e45fd..58d719ddaa60 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3618,6 +3618,26 @@ void ieee80211_get_tx_rates(struct ieee80211_vif *vif,
void ieee80211_tx_status(struct ieee80211_hw *hw,
struct sk_buff *skb);
+/**
+ * ieee80211_tx_status_noskb - transmit status callback without skb
+ *
+ * This function can be used as a replacement for ieee80211_tx_status
+ * in drivers that cannot reliably map tx status information back to
+ * specific skbs.
+ *
+ * Calls to this function for a single hardware must be synchronized
+ * against each other. Calls to this function, ieee80211_tx_status_ni()
+ * and ieee80211_tx_status_irqsafe() may not be mixed for a single hardware.
+ *
+ * @hw: the hardware the frame was transmitted by
+ * @sta: the receiver station to which this packet is sent
+ * (NULL for multicast packets)
+ * @info: tx status information
+ */
+void ieee80211_tx_status_noskb(struct ieee80211_hw *hw,
+ struct ieee80211_sta *sta,
+ struct ieee80211_tx_info *info);
+
/**
* ieee80211_tx_status_ni - transmit status callback (in process context)
*
--
cgit v1.2.1
From 81cc3f868d30884c6f2d2bf5d1861fbeb24ddebd Mon Sep 17 00:00:00 2001
From: Pawel Moll <pawel.moll@arm.com>
Date: Tue, 25 Nov 2014 18:17:34 +0000
Subject: ARM: vexpress: Remove non-DT code
Now, with the CLCD DT support available, there is no
more reason to keep the non-DT support for V2P-CA9.
Removed, together with "some" supporting code. It was
necessary to make PLAT_VERSATILE_SCHED_CLOCK optional
and selected by the machines still interested in it.
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
include/linux/vexpress.h | 19 -------------------
1 file changed, 19 deletions(-)
(limited to 'include')
diff --git a/include/linux/vexpress.h b/include/linux/vexpress.h
index a4c9547aae64..f8e76e08ebe4 100644
--- a/include/linux/vexpress.h
+++ b/include/linux/vexpress.h
@@ -15,8 +15,6 @@
#define _LINUX_VEXPRESS_H
#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/reboot.h>
#include <linux/regmap.h>
#define VEXPRESS_SITE_MB 0
@@ -24,13 +22,6 @@
#define VEXPRESS_SITE_DB2 2
#define VEXPRESS_SITE_MASTER 0xf
-#define VEXPRESS_RES_FUNC(_site, _func) \
-{ \
- .start = (_site), \
- .end = (_func), \
- .flags = IORESOURCE_BUS, \
-}
-
/* Config infrastructure */
void vexpress_config_set_master(u32 site);
@@ -58,16 +49,6 @@ struct regmap *devm_regmap_init_vexpress_config(struct device *dev);
/* Platform control */
-unsigned int vexpress_get_mci_cardin(struct device *dev);
-u32 vexpress_get_procid(int site);
-void *vexpress_get_24mhz_clock_base(void);
void vexpress_flags_set(u32 data);
-void vexpress_sysreg_early_init(void __iomem *base);
-int vexpress_syscfg_device_register(struct platform_device *pdev);
-
-/* Clocks */
-
-void vexpress_clk_init(void __iomem *sp810_base);
-
#endif
--
cgit v1.2.1
From df870c78848aac4d953f61a8926a792de8133b9e Mon Sep 17 00:00:00 2001
From: Jason Cooper <jason@lakedaemon.net>
Date: Thu, 27 Nov 2014 18:27:49 +0000
Subject: irqchip: gic: Remove warning by including linux/irqdomain.h
Commit
853a33ce6932 irqchip: gic-v2m: Add support for ARM GICv2m MSI(-X) doorbell
Introduced a series of warnings when building ARM multi_v7_defconfig:
include/linux/irqchip/arm-gic.h:109:53: warning: its scope is only this definition or declaration, which is probably not what you want
In file included from arch/arm/mach-ux500/pm.c:13:0:
include/linux/irqchip/arm-gic.h:109:53: warning: 'struct irq_domain' declared inside parameter list
int gicv2m_of_init(struct device_node *node, struct irq_domain *parent);
^
Fix this by adding the proper include.
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
[ jac merged much more correct version from Marc into this patch ]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Link: https://lkml.kernel.org/r/1417170975-1163-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/irqchip/arm-gic.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 60b09ed58cae..71d706d5f169 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -91,6 +91,8 @@
#ifndef __ASSEMBLY__
+#include <linux/irqdomain.h>
+
struct device_node;
extern struct irq_chip gic_arch_extn;
--
cgit v1.2.1
From 90452e61137a3e88aa705d3efcb3874f3ce8d390 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 27 Nov 2014 06:07:49 +0530
Subject: cpufreq: Fix formatting issues in 'struct cpufreq_driver'
Adding any new callback to 'struct cpufreq_driver' gives following checkpatch
warning:
WARNING: Unnecessary space before function pointer arguments
+ void (*ready) (struct cpufreq_policy *policy);
This is because we have been using a tab spacing between function pointer name
and its arguments and the new one tried to follow that.
Though we normally don't try to fix every checkpatch warning, specially around
formatting issues as that creates unnecessary noise over lists. But I thought we
better fix this so that new additions don't generate these warnings plus it
looks far better/symmetric now.
So, remove these tab spacing issues in 'struct cpufreq_driver' only + fix
alignment of all members.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Eduardo Valentin <edubezval@gmail.com>
Tested-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/cpufreq.h | 50 ++++++++++++++++++++++++-------------------------
1 file changed, 25 insertions(+), 25 deletions(-)
(limited to 'include')
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 503b085b7832..db3c13085671 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -217,26 +217,26 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
struct cpufreq_driver {
- char name[CPUFREQ_NAME_LEN];
- u8 flags;
- void *driver_data;
+ char name[CPUFREQ_NAME_LEN];
+ u8 flags;
+ void *driver_data;
/* needed by all drivers */
- int (*init) (struct cpufreq_policy *policy);
- int (*verify) (struct cpufreq_policy *policy);
+ int (*init)(struct cpufreq_policy *policy);
+ int (*verify)(struct cpufreq_policy *policy);
/* define one out of two */
- int (*setpolicy) (struct cpufreq_policy *policy);
+ int (*setpolicy)(struct cpufreq_policy *policy);
/*
* On failure, should always restore frequency to policy->restore_freq
* (i.e. old freq).
*/
- int (*target) (struct cpufreq_policy *policy, /* Deprecated */
- unsigned int target_freq,
- unsigned int relation);
- int (*target_index) (struct cpufreq_policy *policy,
- unsigned int index);
+ int (*target)(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int relation); /* Deprecated */
+ int (*target_index)(struct cpufreq_policy *policy,
+ unsigned int index);
/*
* Only for drivers with target_index() and CPUFREQ_ASYNC_NOTIFICATION
* unset.
@@ -252,27 +252,27 @@ struct cpufreq_driver {
* wish to switch to intermediate frequency for some target frequency.
* In that case core will directly call ->target_index().
*/
- unsigned int (*get_intermediate)(struct cpufreq_policy *policy,
- unsigned int index);
- int (*target_intermediate)(struct cpufreq_policy *policy,
- unsigned int index);
+ unsigned int (*get_intermediate)(struct cpufreq_policy *policy,
+ unsigned int index);
+ int (*target_intermediate)(struct cpufreq_policy *policy,
+ unsigned int index);
/* should be defined, if possible */
- unsigned int (*get) (unsigned int cpu);
+ unsigned int (*get)(unsigned int cpu);
/* optional */
- int (*bios_limit) (int cpu, unsigned int *limit);
+ int (*bios_limit)(int cpu, unsigned int *limit);
- int (*exit) (struct cpufreq_policy *policy);
- void (*stop_cpu) (struct cpufreq_policy *policy);
- int (*suspend) (struct cpufreq_policy *policy);
- int (*resume) (struct cpufreq_policy *policy);
- struct freq_attr **attr;
+ int (*exit)(struct cpufreq_policy *policy);
+ void (*stop_cpu)(struct cpufreq_policy *policy);
+ int (*suspend)(struct cpufreq_policy *policy);
+ int (*resume)(struct cpufreq_policy *policy);
+ struct freq_attr **attr;
/* platform specific boost support code */
- bool boost_supported;
- bool boost_enabled;
- int (*set_boost) (int state);
+ bool boost_supported;
+ bool boost_enabled;
+ int (*set_boost)(int state);
};
/* flags */
--
cgit v1.2.1
From 7c45cf31b3ab9be270a7bf6af2926631dc566436 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 27 Nov 2014 06:07:51 +0530
Subject: cpufreq: Introduce ->ready() callback for cpufreq drivers
Currently there is no callback for cpufreq drivers which is called once the
policy is ready to be used. There are some requirements where such a callback is
required.
One of them is registering a cooling device with the help of
of_cpufreq_cooling_register(). This routine tries to get 'struct cpufreq_policy'
for CPUs which isn't yet initialed at the time ->init() is called and so we face
issues while registering the cooling device.
Because we can't register cooling device from ->init(), we need a callback that
is called after the policy is ready to be used and hence we introduce ->ready()
callback.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Eduardo Valentin <edubezval@gmail.com>
Tested-by: Eduardo Valentin <edubezval@gmail.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/cpufreq.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index db3c13085671..4d078cebafd2 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -267,6 +267,10 @@ struct cpufreq_driver {
void (*stop_cpu)(struct cpufreq_policy *policy);
int (*suspend)(struct cpufreq_policy *policy);
int (*resume)(struct cpufreq_policy *policy);
+
+ /* Will be called after the driver is fully initialized */
+ void (*ready)(struct cpufreq_policy *policy);
+
struct freq_attr **attr;
/* platform specific boost support code */
--
cgit v1.2.1
From 129eec55df6ab1b5ecdd89fd7db7a2cd103200b5 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 27 Nov 2014 08:54:06 +0530
Subject: PM / OPP Introduce APIs to remove OPPs
OPPs are created statically (from DT) or dynamically. Currently we don't free
OPPs that are created statically, when the module unloads. And so if the module
is inserted back again, we get warning for duplicate OPPs as the same were
already present.
Also, there might be a need to remove dynamic OPPs in future and so API for that
is also added.
This patch adds helper APIs to remove/free existing static and dynamic OPPs.
Because the OPPs are used both under RCU and SRCU, we have to wait for grace
period of both. And so are using kfree_rcu() from within call_srcu().
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_opp.h | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 0330217abfad..cec2d4540914 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -21,7 +21,7 @@ struct dev_pm_opp;
struct device;
enum dev_pm_opp_event {
- OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
+ OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
};
#if defined(CONFIG_PM_OPP)
@@ -44,6 +44,7 @@ struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
int dev_pm_opp_add(struct device *dev, unsigned long freq,
unsigned long u_volt);
+void dev_pm_opp_remove(struct device *dev, unsigned long freq);
int dev_pm_opp_enable(struct device *dev, unsigned long freq);
@@ -90,6 +91,10 @@ static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
return -EINVAL;
}
+static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq)
+{
+}
+
static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
{
return 0;
@@ -109,11 +114,16 @@ static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
int of_init_opp_table(struct device *dev);
+void of_free_opp_table(struct device *dev);
#else
static inline int of_init_opp_table(struct device *dev)
{
return -EINVAL;
}
+
+static inline void of_free_opp_table(struct device *dev)
+{
+}
#endif
#endif /* __LINUX_OPP_H__ */
--
cgit v1.2.1
From 4749c02b8da6d8dbc29218652985bda844017e95 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 21 Nov 2014 17:00:04 +0100
Subject: bus: mvebu-mbus: provide a mechanism to save SDRAM window
configuration
On Marvell EBU platforms, when doing suspend/resume, the SDRAM window
configuration must be saved on suspend, and restored on
resume. However, it needs to be restored on resume *before*
re-entering the kernel, because the SDRAM window configuration defines
the layout of the memory. For this reason, it cannot simply be done in
the ->suspend() and ->resume() hooks of the mvebu-mbus driver.
Instead, it needs to be restored by the bootloader "boot info"
mechanism used when resuming. This mechanism allows the kernel to
define a list of (address, value) pairs when suspending, that the
bootloader will restore on resume before jumping back into the kernel.
This commit therefore adds a new function to the mvebu-mbus driver,
called mvebu_mbus_save_cpu_target(), which will be called by the
platform code to make the mvebu-mbus driver save the SDRAM window
configuration in a way that can be understood by the bootloader "boot
info" mechanism.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Link: https://lkml.kernel.org/r/1416585613-2113-8-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
include/linux/mbus.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
index 550c88fb0267..611b69fa8594 100644
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -61,6 +61,7 @@ static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void)
}
#endif
+int mvebu_mbus_save_cpu_target(u32 *store_addr);
void mvebu_mbus_get_pcie_mem_aperture(struct resource *res);
void mvebu_mbus_get_pcie_io_aperture(struct resource *res);
int mvebu_mbus_add_window_remap_by_id(unsigned int target,
--
cgit v1.2.1
From f30d0a815bb9b8ac1a3ab4d0c333d2379220d91d Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Sun, 30 Nov 2014 16:31:21 +0100
Subject: fs: debugfs: add forward declaration for struct device type
The function debugfs_create_devm_seqfile() has a parameter of type
struct device pointer. This type needs to be forward declared to
avoid compilation issues on certain architectures and/or kernel
configurations. The function was introduced with:
commit 98210b7f73f1db182bd9a558a031093cd166e907
Author: Arend van Spriel <arend@broadcom.com>
Date: Sun Nov 9 11:31:58 2014 +0100
debugfs: add helper function to create device related seq_file
The reported build failure for sparc64 architecture was:
make.cross ARCH=sparc64
All warnings:
In file included from fs/debugfs/file.c:21:0:
include/linux/debugfs.h:105:10: warning: 'struct device' declared
inside parameter list
void *data));
^
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/debugfs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 4bbe2ace972a..e3e9f31f91d2 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -20,6 +20,7 @@
#include <linux/types.h>
+struct device;
struct file_operations;
struct debugfs_blob_wrapper {
--
cgit v1.2.1
From ddbb4db4ced1ba784fcd3500179a7291b6c5d7b7 Mon Sep 17 00:00:00 2001
From: Alan Tull <atull@opensource.altera.com>
Date: Wed, 15 Oct 2014 13:55:09 -0500
Subject: hwmon: (pmbus) Add regulator support
Add support for simple on/off control of each channel.
To add regulator support, the pmbus part driver needs to add
regulator_desc information and number of regulators to its
pmbus_driver_info struct.
regulator_desc can be declared using default macro for a
regulator (PMBUS_REGULATOR) that is in pmbus.h
The regulator_init_data can be initialized from either
platform data or the device tree.
Signed-off-by: Alan Tull <atull@opensource.altera.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
include/linux/i2c/pmbus.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/i2c/pmbus.h b/include/linux/i2c/pmbus.h
index 69280db02c41..ee3c2aba2a8e 100644
--- a/include/linux/i2c/pmbus.h
+++ b/include/linux/i2c/pmbus.h
@@ -40,6 +40,10 @@
struct pmbus_platform_data {
u32 flags; /* Device specific flags */
+
+ /* regulator support */
+ int num_regulators;
+ struct regulator_init_data *reg_init_data;
};
#endif /* _PMBUS_H_ */
--
cgit v1.2.1
From 50211be80290b061a923ea7e2d36a6865a48920a Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Fri, 15 Aug 2014 15:44:44 +0300
Subject: ASoC: omap-hdmi-audio: Add platform device for OMAP HDMI audio
support
The platform device should only be registered from OMAPDSS HDMI
driver. The platform driver registers and unregisters all ASoC
components needed for OMAP HDMI audio.
The hdmi audio driver implements cpu-dai component using the callbacks
provided by OMAPDSS and registers the component under DSS HDMI
device. Omap-pcm is registered for platform component also under DSS
HDMI device. Dummy codec is used as as codec component. The hdmi audio
driver implements also the card and registers it under its own
platform device.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
include/sound/omap-hdmi-audio.h | 43 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
create mode 100644 include/sound/omap-hdmi-audio.h
(limited to 'include')
diff --git a/include/sound/omap-hdmi-audio.h b/include/sound/omap-hdmi-audio.h
new file mode 100644
index 000000000000..afdb416898e0
--- /dev/null
+++ b/include/sound/omap-hdmi-audio.h
@@ -0,0 +1,43 @@
+/*
+ * hdmi-audio.c -- OMAP4+ DSS HDMI audio support library
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Jyri Sarha <jsarha@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#include <video/omapdss.h>
+
+#ifndef __OMAP_HDMI_AUDIO_H__
+#define __OMAP_HDMI_AUDIO_H__
+
+struct omap_hdmi_audio_ops {
+ int (*audio_startup)(struct device *dev,
+ void (*abort_cb)(struct device *dev));
+ int (*audio_shutdown)(struct device *dev);
+ int (*audio_start)(struct device *dev);
+ void (*audio_stop)(struct device *dev);
+ int (*audio_config)(struct device *dev,
+ struct omap_dss_audio *dss_audio);
+};
+
+/* HDMI audio initalization data */
+struct omap_hdmi_audio_pdata {
+ struct device *dev;
+ enum omapdss_version dss_version;
+ phys_addr_t audio_dma_addr;
+
+ const struct omap_hdmi_audio_ops *ops;
+};
+
+#endif /* __OMAP_HDMI_AUDIO_H__ */
--
cgit v1.2.1
From 84a845de578a6d46e13307edc2fb27b423213eff Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Wed, 25 Jun 2014 20:20:57 +0300
Subject: OMAPDSS: Remove all references to obsolete HDMI audio callbacks
In new model these callbacks are obsolete since the ASoC component
drivers are integrated into the HDMI drivers and no callbacks are
needed anymore.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
include/video/omapdss.h | 40 ----------------------------------------
1 file changed, 40 deletions(-)
(limited to 'include')
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 1db32023396e..6a84498ea513 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -166,13 +166,6 @@ enum omap_dss_display_state {
OMAP_DSS_DISPLAY_ACTIVE,
};
-enum omap_dss_audio_state {
- OMAP_DSS_AUDIO_DISABLED = 0,
- OMAP_DSS_AUDIO_ENABLED,
- OMAP_DSS_AUDIO_CONFIGURED,
- OMAP_DSS_AUDIO_PLAYING,
-};
-
struct omap_dss_audio {
struct snd_aes_iec958 *iec;
struct snd_cea_861_aud_if *cea;
@@ -635,19 +628,6 @@ struct omapdss_hdmi_ops {
int (*set_hdmi_mode)(struct omap_dss_device *dssdev, bool hdmi_mode);
int (*set_infoframe)(struct omap_dss_device *dssdev,
const struct hdmi_avi_infoframe *avi);
-
- /*
- * Note: These functions might sleep. Do not call while
- * holding a spinlock/readlock.
- */
- int (*audio_enable)(struct omap_dss_device *dssdev);
- void (*audio_disable)(struct omap_dss_device *dssdev);
- bool (*audio_supported)(struct omap_dss_device *dssdev);
- int (*audio_config)(struct omap_dss_device *dssdev,
- struct omap_dss_audio *audio);
- /* Note: These functions may not sleep */
- int (*audio_start)(struct omap_dss_device *dssdev);
- void (*audio_stop)(struct omap_dss_device *dssdev);
};
struct omapdss_dsi_ops {
@@ -783,8 +763,6 @@ struct omap_dss_device {
enum omap_dss_display_state state;
- enum omap_dss_audio_state audio_state;
-
/* OMAP DSS output specific fields */
struct list_head list;
@@ -861,24 +839,6 @@ struct omap_dss_driver {
int (*set_hdmi_mode)(struct omap_dss_device *dssdev, bool hdmi_mode);
int (*set_hdmi_infoframe)(struct omap_dss_device *dssdev,
const struct hdmi_avi_infoframe *avi);
-
- /*
- * For display drivers that support audio. This encompasses
- * HDMI and DisplayPort at the moment.
- */
- /*
- * Note: These functions might sleep. Do not call while
- * holding a spinlock/readlock.
- */
- int (*audio_enable)(struct omap_dss_device *dssdev);
- void (*audio_disable)(struct omap_dss_device *dssdev);
- bool (*audio_supported)(struct omap_dss_device *dssdev);
- int (*audio_config)(struct omap_dss_device *dssdev,
- struct omap_dss_audio *audio);
- /* Note: These functions may not sleep */
- int (*audio_start)(struct omap_dss_device *dssdev);
- void (*audio_stop)(struct omap_dss_device *dssdev);
-
};
enum omapdss_version omapdss_get_version(void);
--
cgit v1.2.1
From 1cd076bf67793942ed921b766f7d461de2ebc0a2 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 27 Aug 2014 14:40:58 +0100
Subject: iommu: provide early initialisation hook for IOMMU drivers
IOMMU drivers must be initialised before any of their upstream devices,
otherwise the relevant iommu_ops won't be configured for the bus in
question. To solve this, a number of IOMMU drivers use initcalls to
initialise the driver before anything has a chance to be probed.
Whilst this solves the immediate problem, it leaves the job of probing
the IOMMU completely separate from the iommu_ops to configure the IOMMU,
which are called on a per-bus basis and require the driver to figure out
exactly which instance of the IOMMU is being requested. In particular,
the add_device callback simply passes a struct device to the driver,
which then has to parse firmware tables or probe buses to identify the
relevant IOMMU instance.
This patch takes the first step in addressing this problem by adding an
early initialisation pass for IOMMU drivers, giving them the ability to
store some per-instance data in their iommu_ops structure and store that
in their of_node. This can later be used when parsing OF masters to
identify the IOMMU instance in question.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Joerg Roedel <jroedel@suse.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/asm-generic/vmlinux.lds.h | 2 ++
include/linux/iommu.h | 2 ++
include/linux/of_iommu.h | 25 +++++++++++++++++++++++++
3 files changed, 29 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index aa70cbda327c..bee5d683074d 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -164,6 +164,7 @@
#define CLKSRC_OF_TABLES() OF_TABLE(CONFIG_CLKSRC_OF, clksrc)
#define IRQCHIP_OF_MATCH_TABLE() OF_TABLE(CONFIG_IRQCHIP, irqchip)
#define CLK_OF_TABLES() OF_TABLE(CONFIG_COMMON_CLK, clk)
+#define IOMMU_OF_TABLES() OF_TABLE(CONFIG_OF_IOMMU, iommu)
#define RESERVEDMEM_OF_TABLES() OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem)
#define CPU_METHOD_OF_TABLES() OF_TABLE(CONFIG_SMP, cpu_method)
#define EARLYCON_OF_TABLES() OF_TABLE(CONFIG_SERIAL_EARLYCON, earlycon)
@@ -497,6 +498,7 @@
CLK_OF_TABLES() \
RESERVEDMEM_OF_TABLES() \
CLKSRC_OF_TABLES() \
+ IOMMU_OF_TABLES() \
CPU_METHOD_OF_TABLES() \
KERNEL_DTB() \
IRQCHIP_OF_MATCH_TABLE() \
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index e6a7c9ff72f2..7b83f9f8e11d 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -103,6 +103,7 @@ enum iommu_attr {
* @domain_get_attr: Query domain attributes
* @domain_set_attr: Change domain attributes
* @pgsize_bitmap: bitmap of supported page sizes
+ * @priv: per-instance data private to the iommu driver
*/
struct iommu_ops {
bool (*capable)(enum iommu_cap);
@@ -133,6 +134,7 @@ struct iommu_ops {
u32 (*domain_get_windows)(struct iommu_domain *domain);
unsigned long pgsize_bitmap;
+ void *priv;
};
#define IOMMU_GROUP_NOTIFY_ADD_DEVICE 1 /* Device added */
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
index 51a560f34bca..5762cdc8effe 100644
--- a/include/linux/of_iommu.h
+++ b/include/linux/of_iommu.h
@@ -1,12 +1,17 @@
#ifndef __OF_IOMMU_H
#define __OF_IOMMU_H
+#include <linux/iommu.h>
+#include <linux/of.h>
+
#ifdef CONFIG_OF_IOMMU
extern int of_get_dma_window(struct device_node *dn, const char *prefix,
int index, unsigned long *busno, dma_addr_t *addr,
size_t *size);
+extern void of_iommu_init(void);
+
#else
static inline int of_get_dma_window(struct device_node *dn, const char *prefix,
@@ -16,6 +21,26 @@ static inline int of_get_dma_window(struct device_node *dn, const char *prefix,
return -EINVAL;
}
+static inline void of_iommu_init(void) { }
+
#endif /* CONFIG_OF_IOMMU */
+static inline void of_iommu_set_ops(struct device_node *np,
+ const struct iommu_ops *ops)
+{
+ np->data = (struct iommu_ops *)ops;
+}
+
+static inline struct iommu_ops *of_iommu_get_ops(struct device_node *np)
+{
+ return np->data;
+}
+
+extern struct of_device_id __iommu_of_table;
+
+typedef int (*of_iommu_init_fn)(struct device_node *);
+
+#define IOMMU_OF_DECLARE(name, compat, fn) \
+ _OF_DECLARE(iommu, name, compat, fn, of_iommu_init_fn)
+
#endif /* __OF_IOMMU_H */
--
cgit v1.2.1
From a3a60f81ee6f8fa65a57fa186b395bcd1f1bb097 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 27 Aug 2014 15:49:10 +0100
Subject: dma-mapping: replace set_arch_dma_coherent_ops with
arch_setup_dma_ops
set_arch_dma_coherent_ops is called from of_dma_configure in order to
swizzle the architectural dma-mapping functions over to a cache-coherent
implementation. This is currently implemented only for ARM.
In anticipation of re-using this mechanism for IOMMU-backed dma-mapping
ops too, this patch replaces the function with a broader
arch_setup_dma_ops callback which will be extended in future.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/linux/dma-mapping.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index d5d388160f42..8a1560f95d4a 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -129,11 +129,8 @@ static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask)
extern u64 dma_get_required_mask(struct device *dev);
-#ifndef set_arch_dma_coherent_ops
-static inline int set_arch_dma_coherent_ops(struct device *dev)
-{
- return 0;
-}
+#ifndef arch_setup_dma_ops
+static inline void arch_setup_dma_ops(struct device *dev, bool coherent) { }
#endif
static inline unsigned int dma_get_max_seg_size(struct device *dev)
--
cgit v1.2.1
From d0f60a44f5120a8e1c48995285c7d8d1e4915b35 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 27 Aug 2014 16:15:59 +0100
Subject: iommu: add new iommu_ops callback for adding an OF device
This patch adds a new function to the iommu_ops structure to allow an
OF device to be added to a specific IOMMU instance using the recently
merged generic devicetree binding for IOMMUs. The callback (of_xlate)
takes a struct device representing the master and an of_phandle_args
representing the IOMMU and the correspondong IDs for the new master.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Joerg Roedel <jroedel@suse.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/linux/iommu.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 7b83f9f8e11d..415c7613d02c 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -21,6 +21,7 @@
#include <linux/errno.h>
#include <linux/err.h>
+#include <linux/of.h>
#include <linux/types.h>
#include <trace/events/iommu.h>
@@ -102,6 +103,7 @@ enum iommu_attr {
* @remove_device: remove device from iommu grouping
* @domain_get_attr: Query domain attributes
* @domain_set_attr: Change domain attributes
+ * @of_xlate: add OF master IDs to iommu grouping
* @pgsize_bitmap: bitmap of supported page sizes
* @priv: per-instance data private to the iommu driver
*/
@@ -133,6 +135,10 @@ struct iommu_ops {
/* Get the numer of window per domain */
u32 (*domain_get_windows)(struct iommu_domain *domain);
+#ifdef CONFIG_OF_IOMMU
+ int (*of_xlate)(struct device *dev, struct of_phandle_args *args);
+#endif
+
unsigned long pgsize_bitmap;
void *priv;
};
--
cgit v1.2.1
From 7eba1d51485197fa77c43c42eae3ce04b4b1c1c0 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 27 Aug 2014 16:20:32 +0100
Subject: iommu: provide helper function to configure an IOMMU for an of master
The generic IOMMU device-tree bindings can be used to add arbitrary OF
masters to an IOMMU with a compliant binding.
This patch introduces of_iommu_configure, which does exactly that.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Joerg Roedel <jroedel@suse.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/linux/of_iommu.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
index 5762cdc8effe..d03abbb11c34 100644
--- a/include/linux/of_iommu.h
+++ b/include/linux/of_iommu.h
@@ -1,6 +1,7 @@
#ifndef __OF_IOMMU_H
#define __OF_IOMMU_H
+#include <linux/device.h>
#include <linux/iommu.h>
#include <linux/of.h>
@@ -11,6 +12,7 @@ extern int of_get_dma_window(struct device_node *dn, const char *prefix,
size_t *size);
extern void of_iommu_init(void);
+extern struct iommu_ops *of_iommu_configure(struct device *dev);
#else
@@ -22,6 +24,10 @@ static inline int of_get_dma_window(struct device_node *dn, const char *prefix,
}
static inline void of_iommu_init(void) { }
+static inline struct iommu_ops *of_iommu_configure(struct device *dev)
+{
+ return NULL;
+}
#endif /* CONFIG_OF_IOMMU */
--
cgit v1.2.1
From 97890ba9289c66e23f2f2d431937693b6498d6f6 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 27 Aug 2014 16:24:20 +0100
Subject: dma-mapping: detect and configure IOMMU in of_dma_configure
This patch extends of_dma_configure so that it sets up the IOMMU for a
device, as well as the coherent/non-coherent DMA mapping ops.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/linux/dma-mapping.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 8a1560f95d4a..c3007cb4bfa6 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -130,7 +130,13 @@ static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask)
extern u64 dma_get_required_mask(struct device *dev);
#ifndef arch_setup_dma_ops
-static inline void arch_setup_dma_ops(struct device *dev, bool coherent) { }
+static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
+ u64 size, struct iommu_ops *iommu,
+ bool coherent) { }
+#endif
+
+#ifndef arch_teardown_dma_ops
+static inline void arch_teardown_dma_ops(struct device *dev) { }
#endif
static inline unsigned int dma_get_max_seg_size(struct device *dev)
--
cgit v1.2.1
From d5735d64e1cebb3748e64f926fa7c35ffabd7afa Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Mon, 17 Nov 2014 09:06:42 -0300
Subject: [media] videodev2.h: improve colorspace support
Add support for the new AdobeRGB and BT.2020 colorspaces as needed for
HDMI 2.0.
Add support to specify the Y'CbCr encoding and quantization range explicitly.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/videodev2.h | 99 +++++++++++++++++++++++++++++++++++++-----
1 file changed, 89 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 1c2f84fd4d99..ced659e1b9f6 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -178,30 +178,103 @@ enum v4l2_memory {
/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
enum v4l2_colorspace {
- /* ITU-R 601 -- broadcast NTSC/PAL */
+ /* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
V4L2_COLORSPACE_SMPTE170M = 1,
- /* 1125-Line (US) HDTV */
+ /* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
V4L2_COLORSPACE_SMPTE240M = 2,
- /* HD and modern captures. */
+ /* Rec.709: used for HDTV */
V4L2_COLORSPACE_REC709 = 3,
- /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
+ /*
+ * Deprecated, do not use. No driver will ever return this. This was
+ * based on a misunderstanding of the bt878 datasheet.
+ */
V4L2_COLORSPACE_BT878 = 4,
- /* These should be useful. Assume 601 extents. */
+ /*
+ * NTSC 1953 colorspace. This only makes sense when dealing with
+ * really, really old NTSC recordings. Superseded by SMPTE 170M.
+ */
V4L2_COLORSPACE_470_SYSTEM_M = 5,
+
+ /*
+ * EBU Tech 3213 PAL/SECAM colorspace. This only makes sense when
+ * dealing with really old PAL/SECAM recordings. Superseded by
+ * SMPTE 170M.
+ */
V4L2_COLORSPACE_470_SYSTEM_BG = 6,
- /* I know there will be cameras that send this. So, this is
- * unspecified chromaticities and full 0-255 on each of the
- * Y'CbCr components
+ /*
+ * Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
+ * and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
*/
V4L2_COLORSPACE_JPEG = 7,
- /* For RGB colourspaces, this is probably a good start. */
+ /* For RGB colorspaces such as produces by most webcams. */
V4L2_COLORSPACE_SRGB = 8,
+
+ /* AdobeRGB colorspace */
+ V4L2_COLORSPACE_ADOBERGB = 9,
+
+ /* BT.2020 colorspace, used for UHDTV. */
+ V4L2_COLORSPACE_BT2020 = 10,
+};
+
+enum v4l2_ycbcr_encoding {
+ /*
+ * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
+ * various colorspaces:
+ *
+ * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
+ * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_ADOBERGB and
+ * V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
+ *
+ * V4L2_COLORSPACE_REC709: V4L2_YCBCR_ENC_709
+ *
+ * V4L2_COLORSPACE_SRGB: V4L2_YCBCR_ENC_SYCC
+ *
+ * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
+ *
+ * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
+ */
+ V4L2_YCBCR_ENC_DEFAULT = 0,
+
+ /* ITU-R 601 -- SDTV */
+ V4L2_YCBCR_ENC_601 = 1,
+
+ /* Rec. 709 -- HDTV */
+ V4L2_YCBCR_ENC_709 = 2,
+
+ /* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
+ V4L2_YCBCR_ENC_XV601 = 3,
+
+ /* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
+ V4L2_YCBCR_ENC_XV709 = 4,
+
+ /* sYCC (Y'CbCr encoding of sRGB) */
+ V4L2_YCBCR_ENC_SYCC = 5,
+
+ /* BT.2020 Non-constant Luminance Y'CbCr */
+ V4L2_YCBCR_ENC_BT2020 = 6,
+
+ /* BT.2020 Constant Luminance Y'CbcCrc */
+ V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,
+
+ /* SMPTE 240M -- Obsolete HDTV */
+ V4L2_YCBCR_ENC_SMPTE240M = 8,
+};
+
+enum v4l2_quantization {
+ /*
+ * The default for R'G'B' quantization is always full range. For
+ * Y'CbCr the quantization is always limited range, except for
+ * SYCC, XV601, XV709 or JPEG: those are full range.
+ */
+ V4L2_QUANTIZATION_DEFAULT = 0,
+ V4L2_QUANTIZATION_FULL_RANGE = 1,
+ V4L2_QUANTIZATION_LIM_RANGE = 2,
};
enum v4l2_priority {
@@ -294,6 +367,8 @@ struct v4l2_pix_format {
__u32 colorspace; /* enum v4l2_colorspace */
__u32 priv; /* private data, depends on pixelformat */
__u32 flags; /* format flags (V4L2_PIX_FMT_FLAG_*) */
+ __u32 ycbcr_enc; /* enum v4l2_ycbcr_encoding */
+ __u32 quantization; /* enum v4l2_quantization */
};
/* Pixel format FOURCC depth Description */
@@ -1777,6 +1852,8 @@ struct v4l2_plane_pix_format {
* @plane_fmt: per-plane information
* @num_planes: number of planes for this format
* @flags: format flags (V4L2_PIX_FMT_FLAG_*)
+ * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
+ * @quantization: enum v4l2_quantization, colorspace quantization
*/
struct v4l2_pix_format_mplane {
__u32 width;
@@ -1788,7 +1865,9 @@ struct v4l2_pix_format_mplane {
struct v4l2_plane_pix_format plane_fmt[VIDEO_MAX_PLANES];
__u8 num_planes;
__u8 flags;
- __u8 reserved[10];
+ __u8 ycbcr_enc;
+ __u8 quantization;
+ __u8 reserved[8];
} __attribute__ ((packed));
/**
--
cgit v1.2.1
From 11ff030c73655ecd7b153c6bd00d26d27e6cc199 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Mon, 17 Nov 2014 09:10:33 -0300
Subject: [media] v4l2-mediabus: improve colorspace support
Add and copy the new ycbcr_enc and quantization fields.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/v4l2-mediabus.h | 4 ++++
include/uapi/linux/v4l2-mediabus.h | 6 +++++-
2 files changed, 9 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h
index 59d7397fb0ea..38d960d8dccd 100644
--- a/include/media/v4l2-mediabus.h
+++ b/include/media/v4l2-mediabus.h
@@ -94,6 +94,8 @@ static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
pix_fmt->height = mbus_fmt->height;
pix_fmt->field = mbus_fmt->field;
pix_fmt->colorspace = mbus_fmt->colorspace;
+ pix_fmt->ycbcr_enc = mbus_fmt->ycbcr_enc;
+ pix_fmt->quantization = mbus_fmt->quantization;
}
static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
@@ -104,6 +106,8 @@ static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
mbus_fmt->height = pix_fmt->height;
mbus_fmt->field = pix_fmt->field;
mbus_fmt->colorspace = pix_fmt->colorspace;
+ mbus_fmt->ycbcr_enc = pix_fmt->ycbcr_enc;
+ mbus_fmt->quantization = pix_fmt->quantization;
mbus_fmt->code = code;
}
diff --git a/include/uapi/linux/v4l2-mediabus.h b/include/uapi/linux/v4l2-mediabus.h
index b1934a3961e4..5a86d8ede09c 100644
--- a/include/uapi/linux/v4l2-mediabus.h
+++ b/include/uapi/linux/v4l2-mediabus.h
@@ -22,6 +22,8 @@
* @code: data format code (from enum v4l2_mbus_pixelcode)
* @field: used interlacing type (from enum v4l2_field)
* @colorspace: colorspace of the data (from enum v4l2_colorspace)
+ * @ycbcr_enc: YCbCr encoding of the data (from enum v4l2_ycbcr_encoding)
+ * @quantization: quantization of the data (from enum v4l2_quantization)
*/
struct v4l2_mbus_framefmt {
__u32 width;
@@ -29,7 +31,9 @@ struct v4l2_mbus_framefmt {
__u32 code;
__u32 field;
__u32 colorspace;
- __u32 reserved[7];
+ __u32 ycbcr_enc;
+ __u32 quantization;
+ __u32 reserved[5];
};
#ifndef __KERNEL__
--
cgit v1.2.1
From 8f73110f6bac043026bc923b0a66abe24dd48058 Mon Sep 17 00:00:00 2001
From: Romain Perier <romain.perier@gmail.com>
Date: Tue, 25 Nov 2014 12:28:25 +0000
Subject: of: Rename "poweroff-source" property to "system-power-controller"
It reverts commit a4b4e0461ec5 ("of: Add standard property for poweroff capability").
As discussed on the mailing list, it makes more sense to rename back to the
old established property name, without the vendor prefix. Problem being that
the word "source" usually tends to be used for inputs and that is out of control
of the OS. The poweroff capability is an output which simply turns the
system-power off. Also, this property might be used by drivers which power-off
the system and power back on subsequent RTC alarms. This seems to suggest to
remove "poweroff" from the property name and to choose "system-power-controller"
as the more generic name. This patchs adds the required renaming changes and
defines an helper function which checks if this property is set.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/linux/of.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 27b3ba1e9e59..257677256612 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -867,14 +867,14 @@ static inline int of_changeset_update_property(struct of_changeset *ocs,
extern int of_resolve_phandles(struct device_node *tree);
/**
- * of_system_has_poweroff_source - Tells if poweroff-source is found for device_node
+ * of_device_is_system_power_controller - Tells if system-power-controller is found for device_node
* @np: Pointer to the given device_node
*
* return true if present false otherwise
*/
-static inline bool of_system_has_poweroff_source(const struct device_node *np)
+static inline bool of_device_is_system_power_controller(const struct device_node *np)
{
- return of_property_read_bool(np, "poweroff-source");
+ return of_property_read_bool(np, "system-power-controller");
}
#endif /* _LINUX_OF_H */
--
cgit v1.2.1
From 8d65ef760d50cc625c5364cba89be838b21c66a7 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Mon, 17 Nov 2014 17:02:57 -0500
Subject: sunrpc: eliminate the XPT_DETACHED flag
All it does is indicate whether a xprt has already been deleted from
a list or not, which is unnecessary since we use list_del_init and it's
always set and checked under the sv_lock anyway.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc_xprt.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index ce6e4182a5b2..79f6f8f3dc0a 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -63,10 +63,9 @@ struct svc_xprt {
#define XPT_CHNGBUF 7 /* need to change snd/rcv buf sizes */
#define XPT_DEFERRED 8 /* deferred request pending */
#define XPT_OLD 9 /* used for xprt aging mark+sweep */
-#define XPT_DETACHED 10 /* detached from tempsocks list */
-#define XPT_LISTENER 11 /* listening endpoint */
-#define XPT_CACHE_AUTH 12 /* cache auth info */
-#define XPT_LOCAL 13 /* connection from loopback interface */
+#define XPT_LISTENER 10 /* listening endpoint */
+#define XPT_CACHE_AUTH 11 /* cache auth info */
+#define XPT_LOCAL 12 /* connection from loopback interface */
struct svc_serv *xpt_server; /* service for transport */
atomic_t xpt_reserved; /* space on outq that is rsvd */
--
cgit v1.2.1
From dabb05c6670e6e4415d7b56cd5864a5dbd90207f Mon Sep 17 00:00:00 2001
From: Mathieu Magnaudet <mathieu.magnaudet@gmail.com>
Date: Thu, 27 Nov 2014 16:02:36 +0100
Subject: HID: make hid_report_len as a static inline function in hid.h
In several hid drivers it is necessary to calculate the length of an
hid_report. This patch exports the existing static function hid_report_len of
hid-core.c as an inline function in hid.h
Signed-off-by: Mathieu Magnaudet <mathieu.magnaudet@enac.fr>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
include/linux/hid.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 78ea9bf941cd..2366fda010c8 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -1063,6 +1063,17 @@ static inline void hid_hw_wait(struct hid_device *hdev)
hdev->ll_driver->wait(hdev);
}
+/**
+ * hid_report_len - calculate the report length
+ *
+ * @report: the report we want to know the length
+ */
+static inline int hid_report_len(struct hid_report *report)
+{
+ /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
+ return ((report->size - 1) >> 3) + 1 + (report->id > 0);
+}
+
int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
int interrupt);
--
cgit v1.2.1
From c50f13c672df758b59e026c15b9118f3ed46edc4 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 1 Dec 2014 23:50:16 +0100
Subject: ACPICA: Save current masks of enabled GPEs after enable register
writes
There is a race condition between acpi_hw_disable_all_gpes() or
acpi_enable_all_wakeup_gpes() and acpi_ev_asynch_enable_gpe() such
that if the latter wins the race, it may mistakenly enable a GPE
disabled by the former. This may lead to premature system wakeups
during system suspend and potentially to more serious consequences.
The source of the problem is how acpi_hw_low_set_gpe() works when
passed ACPI_GPE_CONDITIONAL_ENABLE as the second argument. In that
case, the GPE will be enabled if the corresponding bit is set in the
enable_for_run mask of the GPE enable register containing that bit.
However, acpi_hw_disable_all_gpes() and acpi_enable_all_wakeup_gpes()
don't modify the enable_for_run masks of GPE registers when writing
to them. In consequence, if acpi_ev_asynch_enable_gpe(), which
eventually calls acpi_hw_low_set_gpe() with the second argument
equal to ACPI_GPE_CONDITIONAL_ENABLE, is executed in parallel with
one of these functions, it may reverse changes made by them.
To fix the problem, introduce a new enable_mask field in struct
acpi_gpe_register_info in which to store the current mask of
enabled GPEs and modify acpi_hw_low_set_gpe() to take this
mask into account instead of enable_for_run when its second
argument is equal to ACPI_GPE_CONDITIONAL_ENABLE. Also modify
the low-level routines called by acpi_hw_disable_all_gpes(),
acpi_enable_all_wakeup_gpes() and acpi_enable_all_runtime_gpes()
to update the enable_mask masks of GPE registers after all
(successful) writes to those registers.
Acked-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/actypes.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 7000e66f768e..bbef17368e49 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -736,6 +736,10 @@ typedef u32 acpi_event_status;
#define ACPI_GPE_ENABLE 0
#define ACPI_GPE_DISABLE 1
#define ACPI_GPE_CONDITIONAL_ENABLE 2
+#define ACPI_GPE_SAVE_MASK 4
+
+#define ACPI_GPE_ENABLE_SAVE (ACPI_GPE_ENABLE | ACPI_GPE_SAVE_MASK)
+#define ACPI_GPE_DISABLE_SAVE (ACPI_GPE_DISABLE | ACPI_GPE_SAVE_MASK)
/*
* GPE info flags - Per GPE
--
cgit v1.2.1
From 40af86a40cdcabd48ab9636fe13d6763a7d74bc9 Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Thu, 13 Nov 2014 00:30:23 +0100
Subject: NFC: st21nfca: Remove gpio_irq field in static and dts configuration
- phy->gpio_irq is never done out of the request resources.
- irq_of_parse_and_map is already done in the i2c core so client->irq is
already set when entering in st21nfca_hci_i2c_of_request_resources
- In case of static platform configuration client->irq can be set directly
- It simplifies the code a bit.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/linux/platform_data/st21nfca.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/platform_data/st21nfca.h b/include/linux/platform_data/st21nfca.h
index 1730312398ff..5087fff96d86 100644
--- a/include/linux/platform_data/st21nfca.h
+++ b/include/linux/platform_data/st21nfca.h
@@ -24,7 +24,6 @@
#define ST21NFCA_HCI_DRIVER_NAME "st21nfca_hci"
struct st21nfca_nfc_platform_data {
- unsigned int gpio_irq;
unsigned int gpio_ena;
unsigned int irq_polarity;
};
--
cgit v1.2.1
From a80d0cb6f6addc5a1f3852466fe8d37ca4fe1350 Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Thu, 13 Nov 2014 00:30:26 +0100
Subject: NFC: st21nfcb: Remove gpio_irq field in static and dts configuration
- phy->gpio_irq is never done out of the request resources.
- irq_of_parse_and_map is already done in the i2c core so client->irq is
already set when entering in st21nfcb_hci_i2c_of_request_resources
- In case of static platform configuration client->irq can be set directly.
- It simplifies the code a bit.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/linux/platform_data/st21nfcb.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/platform_data/st21nfcb.h b/include/linux/platform_data/st21nfcb.h
index 2d11f1f5efab..c3b432f5b63e 100644
--- a/include/linux/platform_data/st21nfcb.h
+++ b/include/linux/platform_data/st21nfcb.h
@@ -24,7 +24,6 @@
#define ST21NFCB_NCI_DRIVER_NAME "st21nfcb_nci"
struct st21nfcb_nfc_platform_data {
- unsigned int gpio_irq;
unsigned int gpio_reset;
unsigned int irq_polarity;
};
--
cgit v1.2.1
From 9b8d32b7acdcd237d3e58154d59551c71556fec1 Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Thu, 13 Nov 2014 00:30:34 +0100
Subject: NFC: hci: Add se_io HCI operand
se_io allows to send apdu over the CLF to the embedded Secure Element.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/hci.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index 7ee8f4cc610b..50bc66f0121f 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -57,6 +57,9 @@ struct nfc_hci_ops {
int (*discover_se)(struct nfc_hci_dev *dev);
int (*enable_se)(struct nfc_hci_dev *dev, u32 se_idx);
int (*disable_se)(struct nfc_hci_dev *dev, u32 se_idx);
+ int (*se_io)(struct nfc_hci_dev *dev, u32 se_idx,
+ u8 *apdu, size_t apdu_length,
+ se_io_cb_t cb, void *cb_context);
};
/* Pipes */
--
cgit v1.2.1
From ba4db551bb48943bcebdacc30219d35a1248de11 Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Thu, 13 Nov 2014 00:30:35 +0100
Subject: NFC: nci: Update nci_discover_se to run proprietary commands to
discover all available secure element
Some NFC controller using NCI protocols may need a proprietary commands
flow to discover all available secure element
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index cfea60748a39..8399a7964de4 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -72,6 +72,7 @@ struct nci_ops {
int (*send)(struct nci_dev *ndev, struct sk_buff *skb);
int (*setup)(struct nci_dev *ndev);
__u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol);
+ int (*discover_se)(struct nci_dev *ndev);
};
#define NCI_MAX_SUPPORTED_RF_INTERFACES 4
--
cgit v1.2.1
From 93bca2bfa4b79b689603b56feeea0ebed2842cbe Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Thu, 13 Nov 2014 00:30:36 +0100
Subject: NFC: nci: Update nci_enable_se to run proprietary commands to enable
a secure element
Some NFC controller using NCI protocols may need a proprietary commands
flow to enable a secure element
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 8399a7964de4..db2d12790112 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -73,6 +73,7 @@ struct nci_ops {
int (*setup)(struct nci_dev *ndev);
__u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol);
int (*discover_se)(struct nci_dev *ndev);
+ int (*enable_se)(struct nci_dev *ndev, u32 se_idx);
};
#define NCI_MAX_SUPPORTED_RF_INTERFACES 4
--
cgit v1.2.1
From e9ef9431a347185a8a6a88b072506047d329e480 Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Thu, 13 Nov 2014 00:30:37 +0100
Subject: NFC: nci: Update nci_disable_se to run proprietary commands to
disable a secure element
Some NFC controller using NCI protocols may need a proprietary commands
flow to disable a secure element
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index db2d12790112..dd97dd7176e5 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -73,6 +73,7 @@ struct nci_ops {
int (*setup)(struct nci_dev *ndev);
__u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol);
int (*discover_se)(struct nci_dev *ndev);
+ int (*disable_se)(struct nci_dev *ndev, u32 se_idx);
int (*enable_se)(struct nci_dev *ndev, u32 se_idx);
};
--
cgit v1.2.1
From a688bf55c5908d2206307a9f76d31172ee2b2d92 Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Thu, 13 Nov 2014 00:30:38 +0100
Subject: NFC: nci: Add se_io NCI operand
se_io allows to send apdu over the CLF to the embedded Secure Element.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/nci_core.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index dd97dd7176e5..9e51bb4d841e 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -75,6 +75,9 @@ struct nci_ops {
int (*discover_se)(struct nci_dev *ndev);
int (*disable_se)(struct nci_dev *ndev, u32 se_idx);
int (*enable_se)(struct nci_dev *ndev, u32 se_idx);
+ int (*se_io)(struct nci_dev *ndev, u32 se_idx,
+ u8 *apdu, size_t apdu_length,
+ se_io_cb_t cb, void *cb_context);
};
#define NCI_MAX_SUPPORTED_RF_INTERFACES 4
--
cgit v1.2.1
From 73112edca9be1d7c37d0b94348c82c3742c3ef58 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 13:59:20 -0800
Subject: target: Move dev_cit to struct se_subsystem_api
This patch adds initial support for dev_cit as external config_item_type.
This includes a new struct target_backend_cits to hold the external CITs
within struct se_subsystem_api, and target_core_setup_sub_cits() to be
used by backend drivers ahead of transport_subsystem_register().
It adds a TB_CIT_SETUP() helper following target_core_fabric_configfs.c
to perform the config_item_type assignments.
Also, drop left-over target_core_dev_cit from target_core_configfs.c code
and update comments.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 9adc1bca1178..7b84436541b4 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -5,6 +5,10 @@
#define TRANSPORT_PLUGIN_VHBA_PDEV 2
#define TRANSPORT_PLUGIN_VHBA_VDEV 3
+struct target_backend_cits {
+ struct config_item_type tb_dev_cit;
+};
+
struct se_subsystem_api {
struct list_head sub_api_list;
@@ -44,6 +48,8 @@ struct se_subsystem_api {
int (*init_prot)(struct se_device *);
int (*format_prot)(struct se_device *);
void (*free_prot)(struct se_device *);
+
+ struct target_backend_cits tb_cits;
};
struct sbc_ops {
@@ -96,4 +102,7 @@ sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *,
void array_free(void *array, int n);
+/* From target_core_configfs.c to setup default backend config_item_types */
+void target_core_setup_sub_cits(struct se_subsystem_api *);
+
#endif /* TARGET_CORE_BACKEND_H */
--
cgit v1.2.1
From f79a897efa6a95d698c4064e48e0a5afddc0ad9f Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 14:51:14 -0800
Subject: target: Move dev_attrib_cit to struct se_subsystem_api
This patch adds support for dev_attrib_cit as an external config_item_type
using TB_CIT_SETUP() helper macro, and sets both ct_item_ops + ct_attr
following existing code.
It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() +
struct target_backend_cits, and drops left-over target_core_dev_attrib_cit
from target_core_configfs.c code and update comments.
This patch introduces no functional change from existing code.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 7b84436541b4..735f85672ec6 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -7,6 +7,7 @@
struct target_backend_cits {
struct config_item_type tb_dev_cit;
+ struct config_item_type tb_dev_attrib_cit;
};
struct se_subsystem_api {
--
cgit v1.2.1
From 91e2e39ba89cd627beddafea2a760684adcec89d Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 14:57:01 -0800
Subject: target: Move dev_pr_cit to struct se_subsystem_api
This patch adds support for dev_pr_cit as an external config_item_type
using TB_CIT_SETUP() helper macro, and sets both ct_item_ops + ct_attr
following existing code.
It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() +
struct target_backend_cits, and drops left-over target_core_dev_pr_cit
from target_core_configfs.c code and update comments.
This patch introduces no functional change from existing code.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 735f85672ec6..a47e78989b6f 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -8,6 +8,7 @@
struct target_backend_cits {
struct config_item_type tb_dev_cit;
struct config_item_type tb_dev_attrib_cit;
+ struct config_item_type tb_dev_pr_cit;
};
struct se_subsystem_api {
--
cgit v1.2.1
From f8d389c6f6074aa382963ae13f9d77d99ec3e92d Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 15:01:12 -0800
Subject: target: Move dev_wwn_cit to struct se_subsystem_api
This patch adds support for dev_wwn_cit as an external config_item_type
using TB_CIT_SETUP() helper macro, and sets both ct_item_ops + ct_attr
following existing code.
It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() +
struct target_backend_cits, and drops left-over target_core_dev_wwn_cit
from target_core_configfs.c code and update comments.
This patch introduces no functional change from existing code.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index a47e78989b6f..68fad7814982 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -9,6 +9,7 @@ struct target_backend_cits {
struct config_item_type tb_dev_cit;
struct config_item_type tb_dev_attrib_cit;
struct config_item_type tb_dev_pr_cit;
+ struct config_item_type tb_dev_wwn_cit;
};
struct se_subsystem_api {
--
cgit v1.2.1
From 72aca57bd3fef535972b64c9cd76a088107c589c Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 15:06:23 -0800
Subject: target: Move dev_alua_tg_pt_gps_cit to struct se_subsystem_api
This patch adds support for dev_alua_tg_pt_gps_cit as an external config_item_type
using TB_CIT_SETUP() helper macro, and sets only ct_group_ops following
existing code.
It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() +
struct target_backend_cits, and drops left-over target_core_dev_alua_tg_pt_gps_cit
from target_core_configfs.c code and update comments.
This patch introduces no functional change from existing code.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 68fad7814982..157d173f28fb 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -10,6 +10,7 @@ struct target_backend_cits {
struct config_item_type tb_dev_attrib_cit;
struct config_item_type tb_dev_pr_cit;
struct config_item_type tb_dev_wwn_cit;
+ struct config_item_type tb_dev_alua_tg_pt_gps_cit;
};
struct se_subsystem_api {
--
cgit v1.2.1
From d23ab570bcb1de0256f1dcea0b8ad3af8e534e40 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 15:09:32 -0800
Subject: target: Move dev_stat_cit to struct se_subsystem_api
This patch adds support for dev_stat_cit as an external config_item_type
using TB_CIT_SETUP() helper macro, and sets only ct_group_ops following
existing code.
It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() +
struct target_backend_cits, and drops left-over target_core_dev_stat_cit
from target_core_configfs.c code and update comments.
This patch introduces no functional change from existing code.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 157d173f28fb..83a3726eabc5 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -11,6 +11,7 @@ struct target_backend_cits {
struct config_item_type tb_dev_pr_cit;
struct config_item_type tb_dev_wwn_cit;
struct config_item_type tb_dev_alua_tg_pt_gps_cit;
+ struct config_item_type tb_dev_stat_cit;
};
struct se_subsystem_api {
--
cgit v1.2.1
From 7a23f890b7c11b63dfc2a6c7ae1f0a631ed84865 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 18:57:27 -0800
Subject: target: Add target_core_backend_configfs.h helper macros
This patch adds a number of configfs e-attr macros following
what existing target_core_configfs.c code does for internal
target_backend_dev_attrib setup, and similar to how target
fabric drivers allow for external config_item_type + cit->ct_attrs.
assignment.
This is useful for backend drivers like PSCSI who need to only
expose a small subset of device attributes, while still retaining
a default list of attributes for other backend drivers like
IBLOCK, FILEIO, RAMDISK, and TCMU.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend_configfs.h | 53 +++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
create mode 100644 include/target/target_core_backend_configfs.h
(limited to 'include')
diff --git a/include/target/target_core_backend_configfs.h b/include/target/target_core_backend_configfs.h
new file mode 100644
index 000000000000..f91935b5ef24
--- /dev/null
+++ b/include/target/target_core_backend_configfs.h
@@ -0,0 +1,53 @@
+#ifndef TARGET_CORE_BACKEND_CONFIGFS_H
+#define TARGET_CORE_BACKEND_CONFIGFS_H
+
+#include <target/configfs_macros.h>
+
+#define DEF_TB_DEV_ATTRIB_SHOW(_backend, _name) \
+static ssize_t _backend##_dev_show_attr_##_name( \
+ struct se_dev_attrib *da, \
+ char *page) \
+{ \
+ return snprintf(page, PAGE_SIZE, "%u\n", \
+ (u32)da->da_dev->dev_attrib._name); \
+}
+
+#define DEF_TB_DEV_ATTRIB_STORE(_backend, _name) \
+static ssize_t _backend##_dev_store_attr_##_name( \
+ struct se_dev_attrib *da, \
+ const char *page, \
+ size_t count) \
+{ \
+ unsigned long val; \
+ int ret; \
+ \
+ ret = kstrtoul(page, 0, &val); \
+ if (ret < 0) { \
+ pr_err("kstrtoul() failed with ret: %d\n", ret); \
+ return -EINVAL; \
+ } \
+ ret = se_dev_set_##_name(da->da_dev, (u32)val); \
+ \
+ return (!ret) ? count : -EINVAL; \
+}
+
+#define DEF_TB_DEV_ATTRIB(_backend, _name) \
+DEF_TB_DEV_ATTRIB_SHOW(_backend, _name); \
+DEF_TB_DEV_ATTRIB_STORE(_backend, _name);
+
+#define DEF_TB_DEV_ATTRIB_RO(_backend, name) \
+DEF_TB_DEV_ATTRIB_SHOW(_backend, name);
+
+CONFIGFS_EATTR_STRUCT(target_backend_dev_attrib, se_dev_attrib);
+#define TB_DEV_ATTR(_backend, _name, _mode) \
+static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
+ __CONFIGFS_EATTR(_name, _mode, \
+ _backend##_dev_show_attr_##_name, \
+ _backend##_dev_store_attr_##_name);
+
+#define TB_DEV_ATTR_RO(_backend, _name) \
+static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \
+ __CONFIGFS_EATTR_RO(_name, \
+ _backend##_dev_show_attr_##_name);
+
+#endif /* TARGET_CORE_BACKEND_CONFIGFS_H */
--
cgit v1.2.1
From d30cd1238c2f89662c82d5d2c4686971a6dc3693 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 19:15:48 -0800
Subject: target: Add EXPORT_SYMBOL for existing se_dev_set_*
Now that target_core_backend_configfs.h macros will be using these
se_dev_set attribute functions externally to allow backend drivers
to populate different attributes, go ahead and add EXPORT_SYMBOL()
for the existing default set of 30 device attributes.
Also update target_core_backend.h with proper function prototypes.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend.h | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
(limited to 'include')
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 83a3726eabc5..430cfaf92285 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -110,4 +110,33 @@ void array_free(void *array, int n);
/* From target_core_configfs.c to setup default backend config_item_types */
void target_core_setup_sub_cits(struct se_subsystem_api *);
+/* attribute helpers from target_core_device.c for backend drivers */
+int se_dev_set_max_unmap_lba_count(struct se_device *, u32);
+int se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
+int se_dev_set_unmap_granularity(struct se_device *, u32);
+int se_dev_set_unmap_granularity_alignment(struct se_device *, u32);
+int se_dev_set_max_write_same_len(struct se_device *, u32);
+int se_dev_set_emulate_model_alias(struct se_device *, int);
+int se_dev_set_emulate_dpo(struct se_device *, int);
+int se_dev_set_emulate_fua_write(struct se_device *, int);
+int se_dev_set_emulate_fua_read(struct se_device *, int);
+int se_dev_set_emulate_write_cache(struct se_device *, int);
+int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int);
+int se_dev_set_emulate_tas(struct se_device *, int);
+int se_dev_set_emulate_tpu(struct se_device *, int);
+int se_dev_set_emulate_tpws(struct se_device *, int);
+int se_dev_set_emulate_caw(struct se_device *, int);
+int se_dev_set_emulate_3pc(struct se_device *, int);
+int se_dev_set_pi_prot_type(struct se_device *, int);
+int se_dev_set_pi_prot_format(struct se_device *, int);
+int se_dev_set_enforce_pr_isids(struct se_device *, int);
+int se_dev_set_force_pr_aptpl(struct se_device *, int);
+int se_dev_set_is_nonrot(struct se_device *, int);
+int se_dev_set_emulate_rest_reord(struct se_device *dev, int);
+int se_dev_set_queue_depth(struct se_device *, u32);
+int se_dev_set_max_sectors(struct se_device *, u32);
+int se_dev_set_fabric_max_sectors(struct se_device *, u32);
+int se_dev_set_optimal_sectors(struct se_device *, u32);
+int se_dev_set_block_size(struct se_device *, u32);
+
#endif /* TARGET_CORE_BACKEND_H */
--
cgit v1.2.1
From e6c39f703a878b8d9427ca7b4dc8f97874d12ae6 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 27 Nov 2014 19:49:36 -0800
Subject: target: Add DEF_TB_DEFAULT_ATTRIBS macro for virtual device attrs
This helper macro adds the default set of 30 device attributes for
virtual devices from existing target_core_configfs.c code, and moves
the definitions into a single macro to create the structs necessary
for backend drivers.
It allows them to populate their own external struct configfs_attribute
for se_subsystem_api->tb_cits.tb_dev_attrib_cit.ct_attrs.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/target/target_core_backend_configfs.h | 67 +++++++++++++++++++++++++++
1 file changed, 67 insertions(+)
(limited to 'include')
diff --git a/include/target/target_core_backend_configfs.h b/include/target/target_core_backend_configfs.h
index f91935b5ef24..3247d7530107 100644
--- a/include/target/target_core_backend_configfs.h
+++ b/include/target/target_core_backend_configfs.h
@@ -50,4 +50,71 @@ static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name
__CONFIGFS_EATTR_RO(_name, \
_backend##_dev_show_attr_##_name);
+/*
+ * Default list of target backend device attributes as defined by
+ * struct se_dev_attrib
+ */
+
+#define DEF_TB_DEFAULT_ATTRIBS(_backend) \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_model_alias); \
+ TB_DEV_ATTR(_backend, emulate_model_alias, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_dpo); \
+ TB_DEV_ATTR(_backend, emulate_dpo, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_fua_write); \
+ TB_DEV_ATTR(_backend, emulate_fua_write, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_fua_read); \
+ TB_DEV_ATTR(_backend, emulate_fua_read, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_write_cache); \
+ TB_DEV_ATTR(_backend, emulate_write_cache, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_ua_intlck_ctrl); \
+ TB_DEV_ATTR(_backend, emulate_ua_intlck_ctrl, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_tas); \
+ TB_DEV_ATTR(_backend, emulate_tas, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_tpu); \
+ TB_DEV_ATTR(_backend, emulate_tpu, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_tpws); \
+ TB_DEV_ATTR(_backend, emulate_tpws, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_caw); \
+ TB_DEV_ATTR(_backend, emulate_caw, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_3pc); \
+ TB_DEV_ATTR(_backend, emulate_3pc, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, pi_prot_type); \
+ TB_DEV_ATTR(_backend, pi_prot_type, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB_RO(_backend, hw_pi_prot_type); \
+ TB_DEV_ATTR_RO(_backend, hw_pi_prot_type); \
+ DEF_TB_DEV_ATTRIB(_backend, pi_prot_format); \
+ TB_DEV_ATTR(_backend, pi_prot_format, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, enforce_pr_isids); \
+ TB_DEV_ATTR(_backend, enforce_pr_isids, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, is_nonrot); \
+ TB_DEV_ATTR(_backend, is_nonrot, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, emulate_rest_reord); \
+ TB_DEV_ATTR(_backend, emulate_rest_reord, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, force_pr_aptpl); \
+ TB_DEV_ATTR(_backend, force_pr_aptpl, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB_RO(_backend, hw_block_size); \
+ TB_DEV_ATTR_RO(_backend, hw_block_size); \
+ DEF_TB_DEV_ATTRIB(_backend, block_size); \
+ TB_DEV_ATTR(_backend, block_size, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB_RO(_backend, hw_max_sectors); \
+ TB_DEV_ATTR_RO(_backend, hw_max_sectors); \
+ DEF_TB_DEV_ATTRIB(_backend, fabric_max_sectors); \
+ TB_DEV_ATTR(_backend, fabric_max_sectors, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, optimal_sectors); \
+ TB_DEV_ATTR(_backend, optimal_sectors, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB_RO(_backend, hw_queue_depth); \
+ TB_DEV_ATTR_RO(_backend, hw_queue_depth); \
+ DEF_TB_DEV_ATTRIB(_backend, queue_depth); \
+ TB_DEV_ATTR(_backend, queue_depth, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, max_unmap_lba_count); \
+ TB_DEV_ATTR(_backend, max_unmap_lba_count, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, max_unmap_block_desc_count); \
+ TB_DEV_ATTR(_backend, max_unmap_block_desc_count, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, unmap_granularity); \
+ TB_DEV_ATTR(_backend, unmap_granularity, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, unmap_granularity_alignment); \
+ TB_DEV_ATTR(_backend, unmap_granularity_alignment, S_IRUGO | S_IWUSR); \
+ DEF_TB_DEV_ATTRIB(_backend, max_write_same_len); \
+ TB_DEV_ATTR(_backend, max_write_same_len, S_IRUGO | S_IWUSR);
+
#endif /* TARGET_CORE_BACKEND_CONFIGFS_H */
--
cgit v1.2.1
From 0bd49fc75aab94a7bf3cd2f7c70e03b600635c65 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Tue, 2 Dec 2014 10:09:26 +0200
Subject: Bluetooth: Track both local and remote L2CAP fixed channel mask
To pave the way for future fixed channels to be added easily we should
track both the local and remote mask on a per-L2CAP connection (struct
l2cap_conn) basis. So far the code has used a global variable in a racy
way which anyway needs fixing.
This patch renames the existing conn->fixed_chan_mask that tracked
the remote mask to conn->remote_fixed_chan and adds a new variable
conn->local_fixed_chan to track the local mask. Since the HS support
info is now available in the local mask we can remove the
conn->hs_enabled variable.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/l2cap.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 061e648052c8..d71dc3579354 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -619,8 +619,8 @@ struct l2cap_conn {
unsigned int mtu;
__u32 feat_mask;
- __u8 fixed_chan_mask;
- bool hs_enabled;
+ __u8 remote_fixed_chan;
+ __u8 local_fixed_chan;
__u8 info_state;
__u8 info_ident;
--
cgit v1.2.1
From 3f4994cfc15f38a3159c6e3a4b3ab2e1481a6b02 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Tue, 2 Dec 2014 16:52:06 +1100
Subject: kcmp: Move kcmp.h into uapi
kcmp.h appears to be part of the API, it's documented in kcmp(2), and
the selftests/kcmp code uses it. So move it to uapi so it's actually
exported.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
---
include/linux/kcmp.h | 17 -----------------
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/kcmp.h | 17 +++++++++++++++++
3 files changed, 18 insertions(+), 17 deletions(-)
delete mode 100644 include/linux/kcmp.h
create mode 100644 include/uapi/linux/kcmp.h
(limited to 'include')
diff --git a/include/linux/kcmp.h b/include/linux/kcmp.h
deleted file mode 100644
index 2dcd1b3aafc8..000000000000
--- a/include/linux/kcmp.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef _LINUX_KCMP_H
-#define _LINUX_KCMP_H
-
-/* Comparison type */
-enum kcmp_type {
- KCMP_FILE,
- KCMP_VM,
- KCMP_FILES,
- KCMP_FS,
- KCMP_SIGHAND,
- KCMP_IO,
- KCMP_SYSVSEM,
-
- KCMP_TYPES,
-};
-
-#endif /* _LINUX_KCMP_H */
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index b70237e8bc37..1cf50d682dbf 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -209,6 +209,7 @@ header-y += ivtvfb.h
header-y += ixjuser.h
header-y += jffs2.h
header-y += joystick.h
+header-y += kcmp.h
header-y += kd.h
header-y += kdev_t.h
header-y += kernel-page-flags.h
diff --git a/include/uapi/linux/kcmp.h b/include/uapi/linux/kcmp.h
new file mode 100644
index 000000000000..84df14b37360
--- /dev/null
+++ b/include/uapi/linux/kcmp.h
@@ -0,0 +1,17 @@
+#ifndef _UAPI_LINUX_KCMP_H
+#define _UAPI_LINUX_KCMP_H
+
+/* Comparison type */
+enum kcmp_type {
+ KCMP_FILE,
+ KCMP_VM,
+ KCMP_FILES,
+ KCMP_FS,
+ KCMP_SIGHAND,
+ KCMP_IO,
+ KCMP_SYSVSEM,
+
+ KCMP_TYPES,
+};
+
+#endif /* _UAPI_LINUX_KCMP_H */
--
cgit v1.2.1
From 3682f49f32051765ed6eb77fc882f0458f7d44c3 Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Tue, 2 Dec 2014 21:27:50 +0100
Subject: NFC: netlink: Add new netlink command NFC_CMD_ACTIVATE_TARGET
Some tag might get deactivated after some read or write tentative.
This may happen for example with Mifare Ultralight C tag when trying
to read the last 4 blocks (starting block 0x2c) configured as write
only.
NFC_CMD_ACTIVATE_TARGET will try to reselect the tag in order to
detect if it got remove from the field or if it is still present.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/uapi/linux/nfc.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index 19a75daac14c..3c5efb1bc393 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -116,6 +116,7 @@ enum nfc_commands {
NFC_EVENT_SE_TRANSACTION,
NFC_CMD_GET_SE,
NFC_CMD_SE_IO,
+ NFC_CMD_ACTIVATE_TARGET,
/* private: internal use only */
__NFC_CMD_AFTER_LAST
};
--
cgit v1.2.1
From b3a55b9c5d44d0ed38eb6e8593a47578801730de Mon Sep 17 00:00:00 2001
From: Christophe Ricard <christophe.ricard@gmail.com>
Date: Tue, 2 Dec 2014 21:27:52 +0100
Subject: NFC: hci: Add specific hci macro to not create a pipe
Some pipe are only created by other host (different than the
Terminal Host).
The pipe values will for example be notified by
NFC_HCI_ADM_NOTIFY_PIPE_CREATED.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/net/nfc/hci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index 50bc66f0121f..14bd0e1c47fa 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -64,6 +64,7 @@ struct nfc_hci_ops {
/* Pipes */
#define NFC_HCI_INVALID_PIPE 0x80
+#define NFC_HCI_DO_NOT_CREATE_PIPE 0x81
#define NFC_HCI_LINK_MGMT_PIPE 0x00
#define NFC_HCI_ADMIN_PIPE 0x01
--
cgit v1.2.1
From e479ce479743984a5d4581749f9aaa9c3bfd65e4 Mon Sep 17 00:00:00 2001
From: Julien Lefrique <lefrique@marvell.com>
Date: Tue, 2 Dec 2014 16:25:01 +0100
Subject: NFC: NCI: Fix max length of General Bytes in ATR_RES
The maximum size of ATR_REQ and ATR_RES is 64 bytes.
The maximum number of General Bytes is calculated by
the maximum number of data bytes in the ATR_REQ/ATR_RES,
substracted by the number of mandatory data bytes.
ATR_REQ: 16 mandatory data bytes, giving a maximum of
48 General Bytes.
ATR_RES: 17 mandatory data bytes, giving a maximum of
47 General Bytes.
Regression introduced in commit a99903ec.
Signed-off-by: Julien Lefrique <lefrique@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
include/uapi/linux/nfc.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index 3c5efb1bc393..8119255feae4 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -205,6 +205,8 @@ enum nfc_sdp_attr {
#define NFC_SENSF_RES_MAXSIZE 18
#define NFC_ATR_REQ_MAXSIZE 64
#define NFC_ATR_RES_MAXSIZE 64
+#define NFC_ATR_REQ_GB_MAXSIZE 48
+#define NFC_ATR_RES_GB_MAXSIZE 47
#define NFC_GB_MAXSIZE 48
#define NFC_FIRMWARE_NAME_MAXSIZE 32
#define NFC_ISO15693_UID_MAXSIZE 8
--
cgit v1.2.1
From b7485f6b035a87685ce35e0e52deee6467811eb0 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 28 Nov 2014 14:34:13 +0100
Subject: neigh: sort Neighbor Cache Entry Flags
Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/neighbour.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/neighbour.h b/include/uapi/linux/neighbour.h
index 4a1d7e96dfe3..2f043af7fcd6 100644
--- a/include/uapi/linux/neighbour.h
+++ b/include/uapi/linux/neighbour.h
@@ -35,11 +35,10 @@ enum {
*/
#define NTF_USE 0x01
-#define NTF_PROXY 0x08 /* == ATF_PUBL */
-#define NTF_ROUTER 0x80
-
#define NTF_SELF 0x02
#define NTF_MASTER 0x04
+#define NTF_PROXY 0x08 /* == ATF_PUBL */
+#define NTF_ROUTER 0x80
/*
* Neighbor Cache Entry States.
--
cgit v1.2.1
From f6f6424ba773da6221ecaaa70973eb4dacfa03b2 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 28 Nov 2014 14:34:15 +0100
Subject: net: make vid as a parameter for ndo_fdb_add/ndo_fdb_del
Do the work of parsing NDA_VLAN directly in rtnetlink code, pass simple
u16 vid to drivers from there.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 8 +++++---
include/linux/rtnetlink.h | 6 ++++--
2 files changed, 9 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2cb772495f7a..589929cf4700 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -951,11 +951,11 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
*
* int (*ndo_fdb_add)(struct ndmsg *ndm, struct nlattr *tb[],
* struct net_device *dev,
- * const unsigned char *addr, u16 flags)
+ * const unsigned char *addr, u16 vid, u16 flags)
* Adds an FDB entry to dev for addr.
* int (*ndo_fdb_del)(struct ndmsg *ndm, struct nlattr *tb[],
* struct net_device *dev,
- * const unsigned char *addr)
+ * const unsigned char *addr, u16 vid)
* Deletes the FDB entry from dev coresponding to addr.
* int (*ndo_fdb_dump)(struct sk_buff *skb, struct netlink_callback *cb,
* struct net_device *dev, struct net_device *filter_dev,
@@ -1128,11 +1128,13 @@ struct net_device_ops {
struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr,
+ u16 vid,
u16 flags);
int (*ndo_fdb_del)(struct ndmsg *ndm,
struct nlattr *tb[],
struct net_device *dev,
- const unsigned char *addr);
+ const unsigned char *addr,
+ u16 vid);
int (*ndo_fdb_dump)(struct sk_buff *skb,
struct netlink_callback *cb,
struct net_device *dev,
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 6cacbce1a06c..063f0f581fe0 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -94,11 +94,13 @@ extern int ndo_dflt_fdb_add(struct ndmsg *ndm,
struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr,
- u16 flags);
+ u16 vid,
+ u16 flags);
extern int ndo_dflt_fdb_del(struct ndmsg *ndm,
struct nlattr *tb[],
struct net_device *dev,
- const unsigned char *addr);
+ const unsigned char *addr,
+ u16 vid);
extern int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct net_device *dev, u16 mode);
--
cgit v1.2.1
From 02637fce3e0103ba086b9c33b6d529e69460e4b6 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 28 Nov 2014 14:34:16 +0100
Subject: net: rename netdev_phys_port_id to more generic name
So this can be reused for identification of other "items" as well.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Reviewed-by: Thomas Graf <tgraf@suug.ch>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 589929cf4700..4bd41d72559d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -754,13 +754,13 @@ struct netdev_fcoe_hbainfo {
};
#endif
-#define MAX_PHYS_PORT_ID_LEN 32
+#define MAX_PHYS_ITEM_ID_LEN 32
-/* This structure holds a unique identifier to identify the
- * physical port used by a netdevice.
+/* This structure holds a unique identifier to identify some
+ * physical item (port for example) used by a netdevice.
*/
-struct netdev_phys_port_id {
- unsigned char id[MAX_PHYS_PORT_ID_LEN];
+struct netdev_phys_item_id {
+ unsigned char id[MAX_PHYS_ITEM_ID_LEN];
unsigned char id_len;
};
@@ -976,7 +976,7 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
* USB_CDC_NOTIFY_NETWORK_CONNECTION) should NOT implement this function.
*
* int (*ndo_get_phys_port_id)(struct net_device *dev,
- * struct netdev_phys_port_id *ppid);
+ * struct netdev_phys_item_id *ppid);
* Called to get ID of physical port of this device. If driver does
* not implement this, it is assumed that the hw is not able to have
* multiple net devices on single physical port.
@@ -1152,7 +1152,7 @@ struct net_device_ops {
int (*ndo_change_carrier)(struct net_device *dev,
bool new_carrier);
int (*ndo_get_phys_port_id)(struct net_device *dev,
- struct netdev_phys_port_id *ppid);
+ struct netdev_phys_item_id *ppid);
void (*ndo_add_vxlan_port)(struct net_device *dev,
sa_family_t sa_family,
__be16 port);
@@ -2870,7 +2870,7 @@ void dev_set_group(struct net_device *, int);
int dev_set_mac_address(struct net_device *, struct sockaddr *);
int dev_change_carrier(struct net_device *, bool new_carrier);
int dev_get_phys_port_id(struct net_device *dev,
- struct netdev_phys_port_id *ppid);
+ struct netdev_phys_item_id *ppid);
struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev);
struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
struct netdev_queue *txq, int *ret);
--
cgit v1.2.1
From 007f790c8276271de26416f90d55561bcc96588a Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 28 Nov 2014 14:34:17 +0100
Subject: net: introduce generic switch devices support
The goal of this is to provide a possibility to support various switch
chips. Drivers should implement relevant ndos to do so. Now there is
only one ndo defined:
- for getting physical switch id is in place.
Note that user can use random port netdevice to access the switch.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Reviewed-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 10 ++++++++++
include/net/switchdev.h | 30 ++++++++++++++++++++++++++++++
2 files changed, 40 insertions(+)
create mode 100644 include/net/switchdev.h
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 4bd41d72559d..3603f31e78f3 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1018,6 +1018,12 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
* performing GSO on a packet. The device returns true if it is
* able to GSO the packet, false otherwise. If the return value is
* false the stack will do software GSO.
+ *
+ * int (*ndo_switch_parent_id_get)(struct net_device *dev,
+ * struct netdev_phys_item_id *psid);
+ * Called to get an ID of the switch chip this port is part of.
+ * If driver implements this, it indicates that it represents a port
+ * of a switch chip.
*/
struct net_device_ops {
int (*ndo_init)(struct net_device *dev);
@@ -1171,6 +1177,10 @@ struct net_device_ops {
int (*ndo_get_lock_subclass)(struct net_device *dev);
bool (*ndo_gso_check) (struct sk_buff *skb,
struct net_device *dev);
+#ifdef CONFIG_NET_SWITCHDEV
+ int (*ndo_switch_parent_id_get)(struct net_device *dev,
+ struct netdev_phys_item_id *psid);
+#endif
};
/**
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
new file mode 100644
index 000000000000..7a52360a1446
--- /dev/null
+++ b/include/net/switchdev.h
@@ -0,0 +1,30 @@
+/*
+ * include/net/switchdev.h - Switch device API
+ * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef _LINUX_SWITCHDEV_H_
+#define _LINUX_SWITCHDEV_H_
+
+#include <linux/netdevice.h>
+
+#ifdef CONFIG_NET_SWITCHDEV
+
+int netdev_switch_parent_id_get(struct net_device *dev,
+ struct netdev_phys_item_id *psid);
+
+#else
+
+static inline int netdev_switch_parent_id_get(struct net_device *dev,
+ struct netdev_phys_item_id *psid)
+{
+ return -EOPNOTSUPP;
+}
+
+#endif
+
+#endif /* _LINUX_SWITCHDEV_H_ */
--
cgit v1.2.1
From 82f2841291cfaf4d225aa1766424280254d3e3b2 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 28 Nov 2014 14:34:18 +0100
Subject: rtnl: expose physical switch id for particular device
The netdevice represents a port in a switch, it will expose
IFLA_PHYS_SWITCH_ID value via rtnl. Two netdevices with the same value
belong to one physical switch.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Reviewed-by: Thomas Graf <tgraf@suug.ch>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_link.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 36bddc233633..623f1a7c7627 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -145,6 +145,7 @@ enum {
IFLA_CARRIER,
IFLA_PHYS_PORT_ID,
IFLA_CARRIER_CHANGES,
+ IFLA_PHYS_SWITCH_ID,
__IFLA_MAX
};
--
cgit v1.2.1
From 38dcf357aed299186ecb090cc2f5290cc17d637d Mon Sep 17 00:00:00 2001
From: Scott Feldman <sfeldma@gmail.com>
Date: Fri, 28 Nov 2014 14:34:20 +0100
Subject: bridge: call netdev_sw_port_stp_update when bridge port STP status
changes
To notify switch driver of change in STP state of bridge port, add new
.ndo op and provide switchdev wrapper func to call ndo op. Use it in bridge
code then.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 5 +++++
include/net/switchdev.h | 7 +++++++
2 files changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3603f31e78f3..29c92ee9ed56 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1024,6 +1024,9 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
* Called to get an ID of the switch chip this port is part of.
* If driver implements this, it indicates that it represents a port
* of a switch chip.
+ * int (*ndo_switch_port_stp_update)(struct net_device *dev, u8 state);
+ * Called to notify switch device port of bridge port STP
+ * state change.
*/
struct net_device_ops {
int (*ndo_init)(struct net_device *dev);
@@ -1180,6 +1183,8 @@ struct net_device_ops {
#ifdef CONFIG_NET_SWITCHDEV
int (*ndo_switch_parent_id_get)(struct net_device *dev,
struct netdev_phys_item_id *psid);
+ int (*ndo_switch_port_stp_update)(struct net_device *dev,
+ u8 state);
#endif
};
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 7a52360a1446..8a6d1641fd9b 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -16,6 +16,7 @@
int netdev_switch_parent_id_get(struct net_device *dev,
struct netdev_phys_item_id *psid);
+int netdev_switch_port_stp_update(struct net_device *dev, u8 state);
#else
@@ -25,6 +26,12 @@ static inline int netdev_switch_parent_id_get(struct net_device *dev,
return -EOPNOTSUPP;
}
+static inline int netdev_switch_port_stp_update(struct net_device *dev,
+ u8 state)
+{
+ return -EOPNOTSUPP;
+}
+
#endif
#endif /* _LINUX_SWITCHDEV_H_ */
--
cgit v1.2.1
From cf6b8e1eedffd9ef9a22c0c9453d752b07daf89a Mon Sep 17 00:00:00 2001
From: Scott Feldman <sfeldma@gmail.com>
Date: Fri, 28 Nov 2014 14:34:21 +0100
Subject: bridge: add API to notify bridge driver of learned FBD on offloaded
device
When the swdev device learns a new mac/vlan on a port, it sends some async
notification to the driver and the driver installs an FDB in the device.
To give a holistic system view, the learned mac/vlan should be reflected
in the bridge's FBD table, so the user, using normal iproute2 cmds, can view
what is currently learned by the device. This API on the bridge driver gives
a way for the swdev driver to install an FBD entry in the bridge FBD table.
(And remove one).
This is equivalent to the device running these cmds:
bridge fdb [add|del] <mac> dev <dev> vid <vlan id> master
This patch needs some extra eyeballs for review, in paricular around the
locking and contexts.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_bridge.h | 18 ++++++++++++++++++
include/uapi/linux/neighbour.h | 1 +
2 files changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index 808dcb8cc04f..fa2eca625129 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -37,6 +37,24 @@ extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __use
typedef int br_should_route_hook_t(struct sk_buff *skb);
extern br_should_route_hook_t __rcu *br_should_route_hook;
+#if IS_ENABLED(CONFIG_BRIDGE)
+int br_fdb_external_learn_add(struct net_device *dev,
+ const unsigned char *addr, u16 vid);
+int br_fdb_external_learn_del(struct net_device *dev,
+ const unsigned char *addr, u16 vid);
+#else
+static inline int br_fdb_external_learn_add(struct net_device *dev,
+ const unsigned char *addr, u16 vid)
+{
+ return 0;
+}
+static inline int br_fdb_external_learn_del(struct net_device *dev,
+ const unsigned char *addr, u16 vid)
+{
+ return 0;
+}
+#endif
+
#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
int br_multicast_list_adjacent(struct net_device *dev,
struct list_head *br_ip_list);
diff --git a/include/uapi/linux/neighbour.h b/include/uapi/linux/neighbour.h
index 2f043af7fcd6..f3d77f9f1e0b 100644
--- a/include/uapi/linux/neighbour.h
+++ b/include/uapi/linux/neighbour.h
@@ -38,6 +38,7 @@ enum {
#define NTF_SELF 0x02
#define NTF_MASTER 0x04
#define NTF_PROXY 0x08 /* == ATF_PUBL */
+#define NTF_EXT_LEARNED 0x10
#define NTF_ROUTER 0x80
/*
--
cgit v1.2.1
From 065c212a9e25172069f368b36228379521dadb65 Mon Sep 17 00:00:00 2001
From: Scott Feldman <sfeldma@gmail.com>
Date: Fri, 28 Nov 2014 14:34:22 +0100
Subject: bridge: move private brport flags to if_bridge.h so port drivers can
use flags
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_bridge.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include')
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index fa2eca625129..2c81a8efd24d 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -15,6 +15,7 @@
#include <linux/netdevice.h>
#include <uapi/linux/if_bridge.h>
+#include <linux/bitops.h>
struct br_ip {
union {
@@ -32,6 +33,17 @@ struct br_ip_list {
struct br_ip addr;
};
+#define BR_HAIRPIN_MODE BIT(0)
+#define BR_BPDU_GUARD BIT(1)
+#define BR_ROOT_BLOCK BIT(2)
+#define BR_MULTICAST_FAST_LEAVE BIT(3)
+#define BR_ADMIN_COST BIT(4)
+#define BR_LEARNING BIT(5)
+#define BR_FLOOD BIT(6)
+#define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING)
+#define BR_PROMISC BIT(7)
+#define BR_PROXYARP BIT(8)
+
extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
typedef int br_should_route_hook_t(struct sk_buff *skb);
--
cgit v1.2.1
From efacacdaf7cb5a0592ed772e3731636b2742e34a Mon Sep 17 00:00:00 2001
From: Scott Feldman <sfeldma@gmail.com>
Date: Fri, 28 Nov 2014 14:34:23 +0100
Subject: bridge: add new brport flag LEARNING_SYNC
This policy flag controls syncing of learned FDB entries to bridge's FDB. If
on, FDB entries learned on bridge port device will be synced. If off, device
may still learn new FDB entries but they will not be synced with bridge's FDB.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/if_bridge.h | 1 +
include/uapi/linux/if_link.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index 2c81a8efd24d..0a8ce762a47f 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -43,6 +43,7 @@ struct br_ip_list {
#define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING)
#define BR_PROMISC BIT(7)
#define BR_PROXYARP BIT(8)
+#define BR_LEARNING_SYNC BIT(9)
extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 623f1a7c7627..f7d0d2d7173a 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -245,6 +245,7 @@ enum {
IFLA_BRPORT_LEARNING, /* mac learning */
IFLA_BRPORT_UNICAST_FLOOD, /* flood unicast traffic */
IFLA_BRPORT_PROXYARP, /* proxy ARP */
+ IFLA_BRPORT_LEARNING_SYNC, /* mac learning sync from device */
__IFLA_BRPORT_MAX
};
#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
--
cgit v1.2.1
From 345cd494a324c149ef7293f4bedf2d7131a6de7c Mon Sep 17 00:00:00 2001
From: Scott Feldman <sfeldma@gmail.com>
Date: Fri, 28 Nov 2014 14:34:24 +0100
Subject: bridge: add new hwmode swdev
Current hwmode settings are "vepa" or "veb". These are for NIC interfaces
with basic bridging function offloaded to HW. Add new "swdev" for full
switch device offloads.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_bridge.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index da17e456908d..296a556454e3 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -105,6 +105,7 @@ struct __fdb_entry {
#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
+#define BRIDGE_MODE_SWDEV 2 /* Full switch device offload */
/* Bridge management nested attributes
* [IFLA_AF_SPEC] = {
--
cgit v1.2.1
From 2c3c031c8f8930861815fa1685d7c5e8ccec047c Mon Sep 17 00:00:00 2001
From: Scott Feldman <sfeldma@gmail.com>
Date: Fri, 28 Nov 2014 14:34:25 +0100
Subject: bridge: add brport flags to dflt bridge_getlink
To allow brport device to return current brport flags set on port. Add
returned flags to nested IFLA_PROTINFO netlink msg built in dflt getlink.
With this change, netlink msg returned for bridge_getlink contains the port's
offloaded flag settings (the port's SELF settings).
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/rtnetlink.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 063f0f581fe0..3b0419072f88 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -103,5 +103,6 @@ extern int ndo_dflt_fdb_del(struct ndmsg *ndm,
u16 vid);
extern int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
- struct net_device *dev, u16 mode);
+ struct net_device *dev, u16 mode,
+ u32 flags, u32 mask);
#endif /* __LINUX_RTNETLINK_H */
--
cgit v1.2.1
From a51b9199b1e092da5ee4a89852e84b4c52ae6044 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Sun, 30 Nov 2014 19:56:53 +0100
Subject: netfilter: ipset: Alignment problem between 64bit kernel 32bit
userspace
Sven-Haegar Koch reported the issue:
sims:~# iptables -A OUTPUT -m set --match-set testset src -j ACCEPT
iptables: Invalid argument. Run `dmesg' for more information.
In syslog:
x_tables: ip_tables: set.3 match: invalid size 48 (kernel) != (user) 32
which was introduced by the counter extension in ipset.
The patch fixes the alignment issue with introducing a new set match
revision with the fixed underlying 'struct ip_set_counter_match'
structure.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/uapi/linux/netfilter/ipset/ip_set.h | 8 +++++++-
include/uapi/linux/netfilter/xt_set.h | 13 +++++++++++--
2 files changed, 18 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/netfilter/ipset/ip_set.h b/include/uapi/linux/netfilter/ipset/ip_set.h
index ca03119111a2..5ab4e60894cf 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set.h
@@ -256,11 +256,17 @@ enum {
IPSET_COUNTER_GT,
};
-struct ip_set_counter_match {
+/* Backward compatibility for set match v3 */
+struct ip_set_counter_match0 {
__u8 op;
__u64 value;
};
+struct ip_set_counter_match {
+ __aligned_u64 value;
+ __u8 op;
+};
+
/* Interface to iptables/ip6tables */
#define SO_IP_SET 83
diff --git a/include/uapi/linux/netfilter/xt_set.h b/include/uapi/linux/netfilter/xt_set.h
index d6a1df1f2947..d4e02348384c 100644
--- a/include/uapi/linux/netfilter/xt_set.h
+++ b/include/uapi/linux/netfilter/xt_set.h
@@ -66,8 +66,8 @@ struct xt_set_info_target_v2 {
struct xt_set_info_match_v3 {
struct xt_set_info match_set;
- struct ip_set_counter_match packets;
- struct ip_set_counter_match bytes;
+ struct ip_set_counter_match0 packets;
+ struct ip_set_counter_match0 bytes;
__u32 flags;
};
@@ -81,4 +81,13 @@ struct xt_set_info_target_v3 {
__u32 timeout;
};
+/* Revision 4 match */
+
+struct xt_set_info_match_v4 {
+ struct xt_set_info match_set;
+ struct ip_set_counter_match packets;
+ struct ip_set_counter_match bytes;
+ __u32 flags;
+};
+
#endif /*_XT_SET_H*/
--
cgit v1.2.1
From 23fb8de376181a30c35195351ec6230167098b48 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 23 May 2014 13:15:37 +0300
Subject: Bluetooth: Add mgmt support for LE Secure Connections LTK types
We need a dedicated LTK type for LTK resulting from a Secure Connections
based SMP pairing. This patch adds a new define for it and ensures that
both the New LTK event as well as the Load LTKs command supports it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/mgmt.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index b391fd663468..9b382ea34fd9 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -184,6 +184,9 @@ struct mgmt_cp_load_link_keys {
#define MGMT_LTK_UNAUTHENTICATED 0x00
#define MGMT_LTK_AUTHENTICATED 0x01
+#define MGMT_LTK_P256_UNAUTH 0x02
+#define MGMT_LTK_P256_AUTH 0x03
+#define MGMT_LTK_P256_DEBUG 0x04
struct mgmt_ltk_info {
struct mgmt_addr_info addr;
--
cgit v1.2.1
From 710f11c08e9f18a8a642024880804436c0969514 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 26 May 2014 11:21:22 +0300
Subject: Bluetooth: Use custom macro for testing BR/EDR SC enabled
Since the HCI_SC_ENABLED flag will also be used for controllers without
BR/EDR Secure Connections support whenever we need to check specifically
for SC for BR/EDR we also need to check that the controller actually
supports it. This patch adds a convenience macro for check all the
necessary conditions and converts the places in the code that need it to
use it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 396c09840fdf..7f08ea36d246 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -999,6 +999,9 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
#define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \
!test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+#define bredr_sc_enabled(dev) ((lmp_sc_capable(dev) || \
+ test_bit(HCI_FORCE_SC, &(dev)->dbg_flags)) && \
+ test_bit(HCI_SC_ENABLED, &(dev)->dev_flags))
/* ----- HCI protocols ----- */
#define HCI_PROTO_DEFER 0x01
--
cgit v1.2.1
From 0ac3dbf9995281261abecfd2970406dd4e07955b Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 29 May 2014 15:00:03 +0300
Subject: Bluetooth: Remove unused hci_find_ltk function
Now that LTKs are always looked up based on bdaddr (with EDiv/Rand
checks done after a successful lookup) the hci_find_ltk function is not
needed anymore. This patch removes the function.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 7f08ea36d246..b41969b561d8 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -921,8 +921,6 @@ struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
bdaddr_t *bdaddr, u8 *val, u8 type,
u8 pin_len, bool *persistent);
-struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand,
- u8 role);
struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 addr_type, u8 type, u8 authenticated,
u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
--
cgit v1.2.1
From f3a73d97b3b78584e111478d07dfd063453f112e Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 29 May 2014 15:02:59 +0300
Subject: Bluetooth: Rename hci_find_ltk_by_addr to hci_find_ltk
Now that hci_find_ltk_by_addr is the only LTK lookup function there's no
need to keep the long name anymore. This patch shortens the function
name to simply hci_find_ltk.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b41969b561d8..90929641d0f0 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -924,8 +924,8 @@ struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 addr_type, u8 type, u8 authenticated,
u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
-struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
- u8 addr_type, u8 role);
+struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 addr_type, u8 role);
int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
void hci_smp_ltks_clear(struct hci_dev *hdev);
int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
--
cgit v1.2.1
From fe8bc5ac67a36b05c4ec91643736d44373096a76 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 14 Aug 2014 12:33:17 +0300
Subject: Bluetooth: Add hci_conn flag for new link key generation
For LE Secure Connections we want to trigger cross transport key
generation only if a new link key was actually created during the BR/EDR
connection. This patch adds a new flag to track this information.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 90929641d0f0..42f9362a83c1 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -559,6 +559,7 @@ enum {
HCI_CONN_AUTH_INITIATOR,
HCI_CONN_DROP,
HCI_CONN_PARAM_REMOVAL_PEND,
+ HCI_CONN_NEW_LINK_KEY,
};
static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
--
cgit v1.2.1
From 858cdc78be8be19b7176cafe06d3db3acfb345d4 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 16 Oct 2014 10:45:31 +0200
Subject: Bluetooth: Add debugfs switch for forcing SMP over BR/EDR
To make it possible to use LE SC functionality over BR/EDR with pre-4.1
controllers (that do not support BR/EDR SC links) it's useful to be able
to force LE SC operations even over a traditional SSP protected link.
This patch adds a debugfs switch to force a special debug flag which is
used to skip the checks for BR/EDR SC support.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index e56f9099f8e3..569c077778b6 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -163,6 +163,7 @@ enum {
enum {
HCI_DUT_MODE,
HCI_FORCE_SC,
+ HCI_FORCE_LESC,
HCI_FORCE_STATIC_ADDR,
};
--
cgit v1.2.1
From ef8efe4bf8b5fe1a9342ae964c428aed1be7863b Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 13 Aug 2014 15:12:32 +0300
Subject: Bluetooth: Add skeleton for BR/EDR SMP channel
This patch adds the very basic code for creating and destroying SMP
L2CAP channels for BR/EDR connections.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 1 +
include/net/bluetooth/l2cap.h | 2 ++
2 files changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 42f9362a83c1..f39e65096b1f 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -306,6 +306,7 @@ struct hci_dev {
__u32 req_result;
void *smp_data;
+ void *smp_bredr_data;
struct discovery_state discovery;
struct hci_conn_hash conn_hash;
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index d71dc3579354..eee3ef530e79 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -141,6 +141,7 @@ struct l2cap_conninfo {
#define L2CAP_FC_ATT 0x10
#define L2CAP_FC_SIG_LE 0x20
#define L2CAP_FC_SMP_LE 0x40
+#define L2CAP_FC_SMP_BREDR 0x80
/* L2CAP Control Field bit masks */
#define L2CAP_CTRL_SAR 0xC000
@@ -255,6 +256,7 @@ struct l2cap_conn_rsp {
#define L2CAP_CID_ATT 0x0004
#define L2CAP_CID_LE_SIGNALING 0x0005
#define L2CAP_CID_SMP 0x0006
+#define L2CAP_CID_SMP_BREDR 0x0007
#define L2CAP_CID_DYN_START 0x0040
#define L2CAP_CID_DYN_END 0xffff
#define L2CAP_CID_LE_DYN_END 0x007f
--
cgit v1.2.1
From 81328d5cca7e1cff6296a63a3c1b671d09ddb3ee Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sun, 26 Oct 2014 20:33:47 +0100
Subject: Bluetooth: Unify remote OOB data functions
There's no need to duplicate code for the 192 vs 192+256 variants of the
OOB data functions. This is also helpful to pave the way to support LE
SC OOB data where only 256 bit data is provided.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index f39e65096b1f..3e89ece75039 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -944,10 +944,8 @@ void hci_remote_oob_data_clear(struct hci_dev *hdev);
struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
bdaddr_t *bdaddr);
int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
- u8 *hash, u8 *rand);
-int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
- u8 *hash192, u8 *rand192,
- u8 *hash256, u8 *rand256);
+ u8 *hash192, u8 *rand192,
+ u8 *hash256, u8 *rand256);
int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
--
cgit v1.2.1
From 6928a9245f2998478047dcc3efad30734766a226 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sun, 26 Oct 2014 20:46:09 +0100
Subject: Bluetooth: Store address type with OOB data
To be able to support OOB data for LE pairing we need to store the
address type of the remote device. This patch extends the relevant
functions and data types with a bdaddr_type variable.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
include/net/bluetooth/hci_core.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 3e89ece75039..1dae7001fc31 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -140,6 +140,7 @@ struct link_key {
struct oob_data {
struct list_head list;
bdaddr_t bdaddr;
+ u8 bdaddr_type;
u8 hash192[16];
u8 rand192[16];
u8 hash256[16];
@@ -942,11 +943,12 @@ void hci_smp_irks_clear(struct hci_dev *hdev);
void hci_remote_oob_data_clear(struct hci_dev *hdev);
struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
- bdaddr_t *bdaddr);
+ bdaddr_t *bdaddr, u8 bdaddr_type);
int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
- u8 *hash192, u8 *rand192,
+ u8 bdaddr_type, u8 *hash192, u8 *rand192,
u8 *hash256, u8 *rand256);
-int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
+int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ u8 bdaddr_type);
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
--
cgit v1.2.1
From 75c28c09af99a0db0ccd8b4395469761aa736543 Mon Sep 17 00:00:00 2001
From: Leif Lindholm <leif.lindholm@linaro.org>
Date: Fri, 28 Nov 2014 11:34:28 +0000
Subject: of: add optional options parameter to of_find_node_by_path()
Update of_find_node_by_path():
1) Rename function to of_find_node_opts_by_path(), adding an optional
pointer argument. Provide a static inline wrapper version of
of_find_node_by_path() which calls the new function with NULL as
the optional argument.
2) Ignore any part of the path beyond and including the ':' separator.
3) Set the new provided pointer argument to the beginning of the string
following the ':' separator.
4: Add tests.
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
include/linux/of.h | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index aa01cf5852f8..8b021db3e16e 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -236,7 +236,13 @@ extern struct device_node *of_find_matching_node_and_match(
const struct of_device_id *matches,
const struct of_device_id **match);
-extern struct device_node *of_find_node_by_path(const char *path);
+extern struct device_node *of_find_node_opts_by_path(const char *path,
+ const char **opts);
+static inline struct device_node *of_find_node_by_path(const char *path)
+{
+ return of_find_node_opts_by_path(path, NULL);
+}
+
extern struct device_node *of_find_node_by_phandle(phandle handle);
extern struct device_node *of_get_parent(const struct device_node *node);
extern struct device_node *of_get_next_parent(struct device_node *node);
@@ -383,6 +389,12 @@ static inline struct device_node *of_find_node_by_path(const char *path)
return NULL;
}
+static inline struct device_node *of_find_node_opts_by_path(const char *path,
+ const char **opts)
+{
+ return NULL;
+}
+
static inline struct device_node *of_get_parent(const struct device_node *node)
{
return NULL;
--
cgit v1.2.1
From 70161ff336674ecfd20614a9c0c61cb17a6e9e83 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Fri, 28 Nov 2014 16:03:33 +0000
Subject: of: Drop ->next pointer from struct device_node
The ->next pointer in struct device_node is a hanger-on from when it was
used to iterate over the whole tree by a particular device_type property
value. Those days are long over, but the fdt unflattening code still
uses it to put nodes in the unflattened tree into the same order as node
in the flat tree. By reworking the unflattening code to reverse the list
after unflattening all the children of a node, the pointer can be
dropped which gives a small amount of memory savings.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Frank Rowand <frank.rowand@sonymobile.com>
Cc: Gaurav Minocha <gaurav.minocha.os@gmail.com>
---
include/linux/of.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/of.h b/include/linux/of.h
index 8b021db3e16e..3f0f0ffbd5e5 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -56,7 +56,6 @@ struct device_node {
struct device_node *parent;
struct device_node *child;
struct device_node *sibling;
- struct device_node *next; /* next device of same type */
struct kobject kobj;
unsigned long _flags;
void *data;
--
cgit v1.2.1
From 4afbe1760d89fec07e7a8cce58beb1b4921a194c Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Tue, 2 Dec 2014 08:54:18 +0100
Subject: clk: Remove unused function __clk_get_prepare_count
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/linux/clk-provider.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 2839c639f092..fcf3252b829f 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -544,7 +544,6 @@ u8 __clk_get_num_parents(struct clk *clk);
struct clk *__clk_get_parent(struct clk *clk);
struct clk *clk_get_parent_by_index(struct clk *clk, u8 index);
unsigned int __clk_get_enable_count(struct clk *clk);
-unsigned int __clk_get_prepare_count(struct clk *clk);
unsigned long __clk_get_rate(struct clk *clk);
unsigned long __clk_get_accuracy(struct clk *clk);
unsigned long __clk_get_flags(struct clk *clk);
--
cgit v1.2.1
From 920f1c7472f35cd3b3a3add10cccb0ef12376a17 Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Tue, 2 Dec 2014 08:54:20 +0100
Subject: clk: Don't expose __clk_get_accuracy
As it's only used internally, in drivers/clk/clk.c.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/linux/clk-provider.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index fcf3252b829f..270137aaf3ab 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -545,7 +545,6 @@ struct clk *__clk_get_parent(struct clk *clk);
struct clk *clk_get_parent_by_index(struct clk *clk, u8 index);
unsigned int __clk_get_enable_count(struct clk *clk);
unsigned long __clk_get_rate(struct clk *clk);
-unsigned long __clk_get_accuracy(struct clk *clk);
unsigned long __clk_get_flags(struct clk *clk);
bool __clk_is_prepared(struct clk *clk);
bool __clk_is_enabled(struct clk *clk);
--
cgit v1.2.1
From 61c7cddfad266ebb86176723f9c679f25cf705fe Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Tue, 2 Dec 2014 08:54:21 +0100
Subject: clk: change clk_debugfs_add_file to take a struct clk_hw
Instead of struct clk, as this should be only used by providers.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/linux/clk-provider.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 270137aaf3ab..5e06f23eed41 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -650,7 +650,7 @@ static inline void clk_writel(u32 val, u32 __iomem *reg)
#endif /* platform dependent I/O accessors */
#ifdef CONFIG_DEBUG_FS
-struct dentry *clk_debugfs_add_file(struct clk *clk, char *name, umode_t mode,
+struct dentry *clk_debugfs_add_file(struct clk_hw *hw, char *name, umode_t mode,
void *data, const struct file_operations *fops);
#endif
--
cgit v1.2.1
From aa35071c590461f95d0179cc8e730d49d610f773 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Wed, 3 Dec 2014 15:46:48 +0100
Subject: drm/ttm: optionally move duplicates to a separate list
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This patch adds an optional list_head parameter to ttm_eu_reserve_buffers.
If specified duplicates in the execbuf list are no longer reported as errors,
but moved to this list instead.
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
include/drm/ttm/ttm_execbuf_util.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
index 460441714413..b620c317c772 100644
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -68,6 +68,7 @@ extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
* non-blocking reserves should be tried.
* @list: thread private list of ttm_validate_buffer structs.
* @intr: should the wait be interruptible
+ * @dups: [out] optional list of duplicates.
*
* Tries to reserve bos pointed to by the list entries for validation.
* If the function returns 0, all buffers are marked as "unfenced",
@@ -83,6 +84,11 @@ extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
* calling process receives a signal while waiting. In that case, no
* buffers on the list will be reserved upon return.
*
+ * If dups is non NULL all buffers already reserved by the current thread
+ * (e.g. duplicates) are added to this list, otherwise -EALREADY is returned
+ * on the first already reserved buffer and all buffers from the list are
+ * unreserved again.
+ *
* Buffers reserved by this function should be unreserved by
* a call to either ttm_eu_backoff_reservation() or
* ttm_eu_fence_buffer_objects() when command submission is complete or
@@ -90,7 +96,8 @@ extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
*/
extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
- struct list_head *list, bool intr);
+ struct list_head *list, bool intr,
+ struct list_head *dups);
/**
* function ttm_eu_fence_buffer_objects.
--
cgit v1.2.1
From c11f6f5bb1e07db79c4c97d768b32b63378c69e0 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 1 Dec 2014 12:50:21 +0100
Subject: PM / Domains: Initial PM clock support for genpd
It's quite common for PM domains to use PM clocks. Typically from SOC
specific code, the per device PM clock list is created and
pm_clk_suspend|resume() are invoked to handle clock gating/ungating.
A step towards consolidation is to integrate PM clock support into
genpd, which is what this patch does.
In this initial step, the calls to the pm_clk_suspend|resume() are
handled within genpd, but the per device PM clock list still needs to
be created from SOC specific code. It seems reasonable to have gendp to
handle that as well, but that left to future patches to address.
It's not every users of genpd that are keen on using PM clocks, thus we
need to provide this a configuration option for genpd. Therefore let's
add flag field in the genpd struct to keep this information and define
a new GENDP_FLAG_PM_CLK bit for it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 9d254e25f866..1dd6c7f64166 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -17,6 +17,9 @@
#include <linux/notifier.h>
#include <linux/cpuidle.h>
+/* Defines used for the flags field in the struct generic_pm_domain */
+#define GENPD_FLAG_PM_CLK (1U << 0) /* PM domain uses PM clk */
+
enum gpd_status {
GPD_STATE_ACTIVE = 0, /* PM domain is active */
GPD_STATE_WAIT_MASTER, /* PM domain's master is being waited for */
@@ -76,6 +79,7 @@ struct generic_pm_domain {
struct device *dev);
void (*detach_dev)(struct generic_pm_domain *domain,
struct device *dev);
+ unsigned int flags; /* Bit field of configs for genpd */
};
static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)
--
cgit v1.2.1
From d30d819dc83107812d9b2876e5e7194e511ed6af Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 27 Nov 2014 22:38:05 +0100
Subject: PM: Drop CONFIG_PM_RUNTIME from the driver core
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so quite a few
depend on CONFIG_PM or even may be dropped entirely in some cases.
Replace CONFIG_PM_RUNTIME with CONFIG_PM in the PM core code.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm.h | 2 +-
include/linux/pm_domain.h | 8 ++------
include/linux/pm_qos.h | 38 +++++++++++++++++---------------------
include/linux/pm_runtime.h | 21 +++++++++------------
4 files changed, 29 insertions(+), 40 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 383fd68aaee1..53b56cf5db3f 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -576,7 +576,7 @@ struct dev_pm_info {
#else
unsigned int should_wakeup:1;
#endif
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
struct timer_list suspend_timer;
unsigned long timer_expires;
struct work_struct work;
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 2e0e06daf8c0..f9dedf2f4103 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -147,6 +147,7 @@ extern void pm_genpd_init(struct generic_pm_domain *genpd,
extern int pm_genpd_poweron(struct generic_pm_domain *genpd);
extern int pm_genpd_name_poweron(const char *domain_name);
+extern void pm_genpd_poweroff_unused(void);
extern struct dev_power_governor simple_qos_governor;
extern struct dev_power_governor pm_domain_always_on_gov;
@@ -221,6 +222,7 @@ static inline int pm_genpd_name_poweron(const char *domain_name)
{
return -ENOSYS;
}
+static inline void pm_genpd_poweroff_unused(void) {}
#define simple_qos_governor NULL
#define pm_domain_always_on_gov NULL
#endif
@@ -237,12 +239,6 @@ static inline int pm_genpd_name_add_device(const char *domain_name,
return __pm_genpd_name_add_device(domain_name, dev, NULL);
}
-#ifdef CONFIG_PM_GENERIC_DOMAINS_RUNTIME
-extern void pm_genpd_poweroff_unused(void);
-#else
-static inline void pm_genpd_poweroff_unused(void) {}
-#endif
-
#ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP
extern void pm_genpd_syscore_poweroff(struct device *dev);
extern void pm_genpd_syscore_poweron(struct device *dev);
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 636e82834506..7b3ae0cffc05 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -154,6 +154,23 @@ void dev_pm_qos_constraints_destroy(struct device *dev);
int dev_pm_qos_add_ancestor_request(struct device *dev,
struct dev_pm_qos_request *req,
enum dev_pm_qos_req_type type, s32 value);
+int dev_pm_qos_expose_latency_limit(struct device *dev, s32 value);
+void dev_pm_qos_hide_latency_limit(struct device *dev);
+int dev_pm_qos_expose_flags(struct device *dev, s32 value);
+void dev_pm_qos_hide_flags(struct device *dev);
+int dev_pm_qos_update_flags(struct device *dev, s32 mask, bool set);
+s32 dev_pm_qos_get_user_latency_tolerance(struct device *dev);
+int dev_pm_qos_update_user_latency_tolerance(struct device *dev, s32 val);
+
+static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev)
+{
+ return dev->power.qos->resume_latency_req->data.pnode.prio;
+}
+
+static inline s32 dev_pm_qos_requested_flags(struct device *dev)
+{
+ return dev->power.qos->flags_req->data.flr.flags;
+}
#else
static inline enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev,
s32 mask)
@@ -200,27 +217,6 @@ static inline int dev_pm_qos_add_ancestor_request(struct device *dev,
enum dev_pm_qos_req_type type,
s32 value)
{ return 0; }
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
-int dev_pm_qos_expose_latency_limit(struct device *dev, s32 value);
-void dev_pm_qos_hide_latency_limit(struct device *dev);
-int dev_pm_qos_expose_flags(struct device *dev, s32 value);
-void dev_pm_qos_hide_flags(struct device *dev);
-int dev_pm_qos_update_flags(struct device *dev, s32 mask, bool set);
-s32 dev_pm_qos_get_user_latency_tolerance(struct device *dev);
-int dev_pm_qos_update_user_latency_tolerance(struct device *dev, s32 val);
-
-static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev)
-{
- return dev->power.qos->resume_latency_req->data.pnode.prio;
-}
-
-static inline s32 dev_pm_qos_requested_flags(struct device *dev)
-{
- return dev->power.qos->flags_req->data.flr.flags;
-}
-#else
static inline int dev_pm_qos_expose_latency_limit(struct device *dev, s32 value)
{ return 0; }
static inline void dev_pm_qos_hide_latency_limit(struct device *dev) {}
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 367f49b9a1c9..eda4feede048 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -35,16 +35,6 @@ extern int pm_generic_runtime_suspend(struct device *dev);
extern int pm_generic_runtime_resume(struct device *dev);
extern int pm_runtime_force_suspend(struct device *dev);
extern int pm_runtime_force_resume(struct device *dev);
-#else
-static inline bool queue_pm_work(struct work_struct *work) { return false; }
-
-static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }
-static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }
-static inline int pm_runtime_force_suspend(struct device *dev) { return 0; }
-static inline int pm_runtime_force_resume(struct device *dev) { return 0; }
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
extern int __pm_runtime_idle(struct device *dev, int rpmflags);
extern int __pm_runtime_suspend(struct device *dev, int rpmflags);
@@ -128,7 +118,14 @@ static inline void pm_runtime_mark_last_busy(struct device *dev)
ACCESS_ONCE(dev->power.last_busy) = jiffies;
}
-#else /* !CONFIG_PM_RUNTIME */
+#else /* !CONFIG_PM */
+
+static inline bool queue_pm_work(struct work_struct *work) { return false; }
+
+static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }
+static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }
+static inline int pm_runtime_force_suspend(struct device *dev) { return 0; }
+static inline int pm_runtime_force_resume(struct device *dev) { return 0; }
static inline int __pm_runtime_idle(struct device *dev, int rpmflags)
{
@@ -179,7 +176,7 @@ static inline unsigned long pm_runtime_autosuspend_expiration(
static inline void pm_runtime_set_memalloc_noio(struct device *dev,
bool enable){}
-#endif /* !CONFIG_PM_RUNTIME */
+#endif /* !CONFIG_PM */
static inline int pm_runtime_idle(struct device *dev)
{
--
cgit v1.2.1
From 5de21bb998b8e816e6a1df1f2c04d95fb6e27a5d Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 27 Nov 2014 22:38:23 +0100
Subject: ACPI / PM: Drop CONFIG_PM_RUNTIME from the ACPI core
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so quite a few
depend on CONFIG_PM.
Replace CONFIG_PM_RUNTIME with CONFIG_PM in the ACPI core code.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpi_bus.h | 6 +-----
include/linux/acpi.h | 26 +++++++++++---------------
2 files changed, 12 insertions(+), 20 deletions(-)
(limited to 'include')
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index f34a0835aa4f..78f7521417e3 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -516,6 +516,7 @@ acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
void (*work_func)(struct work_struct *work));
acpi_status acpi_remove_pm_notifier(struct acpi_device *adev);
int acpi_pm_device_sleep_state(struct device *, int *, int);
+int acpi_pm_device_run_wake(struct device *, bool);
#else
static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
struct device *dev,
@@ -535,11 +536,6 @@ static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
m : ACPI_STATE_D0;
}
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
-int acpi_pm_device_run_wake(struct device *, bool);
-#else
static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
{
return -ENODEV;
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 407a12f663eb..77329be250b2 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -553,16 +553,26 @@ static inline void arch_reserve_mem_area(acpi_physical_address addr,
#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
#endif
-#if defined(CONFIG_ACPI) && defined(CONFIG_PM_RUNTIME)
+#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
int acpi_dev_runtime_suspend(struct device *dev);
int acpi_dev_runtime_resume(struct device *dev);
int acpi_subsys_runtime_suspend(struct device *dev);
int acpi_subsys_runtime_resume(struct device *dev);
+struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
+int acpi_dev_pm_attach(struct device *dev, bool power_on);
#else
static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
+static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
+{
+ return NULL;
+}
+static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
+{
+ return -ENODEV;
+}
#endif
#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
@@ -585,20 +595,6 @@ static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
#endif
-#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
-struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
-int acpi_dev_pm_attach(struct device *dev, bool power_on);
-#else
-static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
-{
- return NULL;
-}
-static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
-{
- return -ENODEV;
-}
-#endif
-
#ifdef CONFIG_ACPI
__printf(3, 4)
void acpi_handle_printk(const char *level, acpi_handle handle,
--
cgit v1.2.1
From 6ed23b806e73bdd5b17722df507b0f4570c606b6 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 4 Dec 2014 00:34:11 +0100
Subject: PM: Merge the SET*_RUNTIME_PM_OPS() macros
The SET_PM_RUNTIME_PM_OPS() and SET_RUNTIME_PM_OPS() macros are
identical except that one of them is not empty for CONFIG_PM set,
while the other one is not empty for CONFIG_PM_RUNTIME set,
respectively.
However, after commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if
PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so one
of these macros is now redundant.
For this reason, replace SET_PM_RUNTIME_PM_OPS() with
SET_RUNTIME_PM_OPS() everywhere and redefine the SET_PM_RUNTIME_PM_OPS
symbol as SET_RUNTIME_PM_OPS in case new code is starting to use the
macro being removed here.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm.h | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 53b56cf5db3f..1dc338f6d4a9 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -342,7 +342,7 @@ struct dev_pm_ops {
#define SET_LATE_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
#endif
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
.runtime_suspend = suspend_fn, \
.runtime_resume = resume_fn, \
@@ -351,14 +351,7 @@ struct dev_pm_ops {
#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn)
#endif
-#ifdef CONFIG_PM
-#define SET_PM_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
- .runtime_suspend = suspend_fn, \
- .runtime_resume = resume_fn, \
- .runtime_idle = idle_fn,
-#else
-#define SET_PM_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn)
-#endif
+#define SET_PM_RUNTIME_PM_OPS SET_RUNTIME_PM_OPS
/*
* Use this if you want to use the same suspend and resume callbacks for suspend
--
cgit v1.2.1
From ceb6c9c862c86423f41c1e20ecf8d454f837f519 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sat, 29 Nov 2014 23:47:05 +0100
Subject: USB / PM: Drop CONFIG_PM_RUNTIME from the USB core
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so quite a few
depend on CONFIG_PM (or even dropped in some cases).
Replace CONFIG_PM_RUNTIME with CONFIG_PM in the USB core code
and documentation.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/usb.h | 2 +-
include/linux/usb/hcd.h | 7 ++-----
2 files changed, 3 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 447a7e2fc19b..f89c24a03bd9 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -637,7 +637,7 @@ static inline bool usb_acpi_power_manageable(struct usb_device *hdev, int index)
#endif
/* USB autosuspend and autoresume */
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
extern void usb_enable_autosuspend(struct usb_device *udev);
extern void usb_disable_autosuspend(struct usb_device *udev);
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index cd96a2bc3388..668898e29d0e 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -93,7 +93,7 @@ struct usb_hcd {
struct timer_list rh_timer; /* drives root-hub polling */
struct urb *status_urb; /* the current status urb */
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
struct work_struct wakeup_work; /* for remote wakeup */
#endif
@@ -625,16 +625,13 @@ extern int usb_find_interface_driver(struct usb_device *dev,
extern void usb_root_hub_lost_power(struct usb_device *rhdev);
extern int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg);
extern int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg);
-#endif /* CONFIG_PM */
-
-#ifdef CONFIG_PM_RUNTIME
extern void usb_hcd_resume_root_hub(struct usb_hcd *hcd);
#else
static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd)
{
return;
}
-#endif /* CONFIG_PM_RUNTIME */
+#endif /* CONFIG_PM */
/*-------------------------------------------------------------------------*/
--
cgit v1.2.1
From 47fafbc701fecf112cfa580f61db229b9f68aba4 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 4 Dec 2014 01:00:23 +0100
Subject: block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks
depending on CONFIG_PM_RUNTIME may now be changed to depend on
CONFIG_PM.
Replace CONFIG_PM_RUNTIME with CONFIG_PM in the block device core.
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/blkdev.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index aac0f9ea952a..534dc402c54f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -398,7 +398,7 @@ struct request_queue {
*/
struct kobject mq_kobj;
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
struct device *dev;
int rpm_status;
unsigned int nr_pending;
@@ -1057,7 +1057,7 @@ extern void blk_put_queue(struct request_queue *);
/*
* block layer runtime pm functions
*/
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
extern void blk_pm_runtime_init(struct request_queue *q, struct device *dev);
extern int blk_pre_runtime_suspend(struct request_queue *q);
extern void blk_post_runtime_suspend(struct request_queue *q, int err);
--
cgit v1.2.1
From 646cafc6aa4d6004d189de1cdc267ab562069ba9 Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Tue, 2 Dec 2014 08:54:22 +0100
Subject: clk: Change clk_ops->determine_rate to return a clk_hw as the best
parent
This is in preparation for clock providers to not have to deal with struct clk.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/linux/clk-provider.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 5e06f23eed41..d936409520f8 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -176,7 +176,7 @@ struct clk_ops {
unsigned long *parent_rate);
long (*determine_rate)(struct clk_hw *hw, unsigned long rate,
unsigned long *best_parent_rate,
- struct clk **best_parent_clk);
+ struct clk_hw **best_parent_hw);
int (*set_parent)(struct clk_hw *hw, u8 index);
u8 (*get_parent)(struct clk_hw *hw);
int (*set_rate)(struct clk_hw *hw, unsigned long rate,
@@ -551,7 +551,7 @@ bool __clk_is_enabled(struct clk *clk);
struct clk *__clk_lookup(const char *name);
long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *best_parent_rate,
- struct clk **best_parent_p);
+ struct clk_hw **best_parent_p);
/*
* FIXME clock api without lock protection
--
cgit v1.2.1
From efc3c1df5fda0aee84f53c226d55804e6dbede4f Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 24 Nov 2014 15:36:18 +0100
Subject: scsi: remove ->change_queue_type method
Since we got rid of ordered tag support in 2010 the prime use case of
switching on and off ordered tags has been obsolete. The other function
of enabling/disabling tagging entirely has only been correctly implemented
by the 53c700 driver and isn't generally useful.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/libsas.h | 1 -
include/scsi/scsi_host.h | 13 -------------
include/scsi/scsi_tcq.h | 3 ---
3 files changed, 17 deletions(-)
(limited to 'include')
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 832dcc9f86ec..8280234fba90 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -693,7 +693,6 @@ extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *);
extern int sas_target_alloc(struct scsi_target *);
extern int sas_slave_configure(struct scsi_device *);
extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
-extern int sas_change_queue_type(struct scsi_device *, int qt);
extern int sas_bios_param(struct scsi_device *,
struct block_device *,
sector_t capacity, int *hsc);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index c8a462ef9a4e..c2fa8b49cb2e 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -277,19 +277,6 @@ struct scsi_host_template {
*/
int (* change_queue_depth)(struct scsi_device *, int);
- /*
- * Fill in this function to allow the changing of tag types
- * (this also allows the enabling/disabling of tag command
- * queueing). An error should only be returned if something
- * went wrong in the driver while trying to set the tag type.
- * If the driver doesn't support the requested tag type, then
- * it should set the closest type it does support without
- * returning an error. Returns the actual tag type set.
- *
- * Status: OPTIONAL
- */
- int (* change_queue_type)(struct scsi_device *, int);
-
/*
* This function determines the BIOS parameters for a given
* harddisk. These tend to be numbers that are made up by
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index fe4a70299419..59578beac053 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -15,9 +15,6 @@
#ifdef CONFIG_BLOCK
-
-int scsi_change_queue_type(struct scsi_device *sdev, int tag_type);
-
/**
* scsi_get_tag_type - get the type of tag the device supports
* @sdev: the scsi device
--
cgit v1.2.1
From 17ea01267c75c5a2e00f3603037715d0d2ce4a58 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 24 Nov 2014 15:36:20 +0100
Subject: scsi: remove scsi_get_tag_type
Both remaining users are better of just checking sdev->simple_tags
directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_tcq.h | 13 -------------
1 file changed, 13 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 59578beac053..681e010c2c48 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -15,19 +15,6 @@
#ifdef CONFIG_BLOCK
-/**
- * scsi_get_tag_type - get the type of tag the device supports
- * @sdev: the scsi device
- */
-static inline int scsi_get_tag_type(struct scsi_device *sdev)
-{
- if (!sdev->tagged_supported)
- return 0;
- if (sdev->simple_tags)
- return MSG_SIMPLE_TAG;
- return 0;
-}
-
static inline void scsi_set_tag_type(struct scsi_device *sdev, int tag)
{
switch (tag) {
--
cgit v1.2.1
From 4e484896ac8b1877097770bc630802d5535e8d46 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 24 Nov 2014 15:36:21 +0100
Subject: scsi: remove scsi_set_tag_type
There is no benefit over just setting sdev->simple_tags directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
include/scsi/scsi_tcq.h | 15 ---------------
1 file changed, 15 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 681e010c2c48..e624acabd7a0 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -15,21 +15,6 @@
#ifdef CONFIG_BLOCK
-static inline void scsi_set_tag_type(struct scsi_device *sdev, int tag)
-{
- switch (tag) {
- case MSG_ORDERED_TAG:
- case MSG_SIMPLE_TAG:
- sdev->simple_tags = 1;
- break;
- case 0:
- /* fall through */
- default:
- sdev->simple_tags = 0;
- break;
- }
-}
-
static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost,
int unique_tag)
{
--
cgit v1.2.1
From 68d81f40047cc4f99e86807e1160fb07a7b856c7 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Mon, 24 Nov 2014 07:07:25 -0800
Subject: scsi: remove MSG_*_TAG defines
For SPI drivers use the message definitions from scsi.h, and for target
drivers introduce a new TCM_*_TAG namespace.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
---
include/scsi/scsi_tcq.h | 5 -----
include/target/target_core_base.h | 6 ++++++
include/trace/events/target.h | 8 ++++----
3 files changed, 10 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index e624acabd7a0..9708b28bd2aa 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -6,11 +6,6 @@
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
-#define MSG_SIMPLE_TAG 0x20
-#define MSG_HEAD_TAG 0x21
-#define MSG_ORDERED_TAG 0x22
-#define MSG_ACA_TAG 0x24 /* unsupported */
-
#define SCSI_NO_TAG (-1) /* identify no tag in use */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 23c518a0340c..397fb635766a 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -476,6 +476,12 @@ struct se_dif_v1_tuple {
__be32 ref_tag;
};
+/* for sam_task_attr */
+#define TCM_SIMPLE_TAG 0x20
+#define TCM_HEAD_TAG 0x21
+#define TCM_ORDERED_TAG 0x22
+#define TCM_ACA_TAG 0x24
+
struct se_cmd {
/* SAM response code being sent to initiator */
u8 scsi_status;
diff --git a/include/trace/events/target.h b/include/trace/events/target.h
index da9cc0f05c93..a4566806c112 100644
--- a/include/trace/events/target.h
+++ b/include/trace/events/target.h
@@ -109,10 +109,10 @@
#define show_task_attribute_name(val) \
__print_symbolic(val, \
- { MSG_SIMPLE_TAG, "SIMPLE" }, \
- { MSG_HEAD_TAG, "HEAD" }, \
- { MSG_ORDERED_TAG, "ORDERED" }, \
- { MSG_ACA_TAG, "ACA" } )
+ { TCM_SIMPLE_TAG, "SIMPLE" }, \
+ { TCM_HEAD_TAG, "HEAD" }, \
+ { TCM_ORDERED_TAG, "ORDERED" }, \
+ { TCM_ACA_TAG, "ACA" } )
#define show_scsi_status_name(val) \
__print_symbolic(val, \
--
cgit v1.2.1
From e9e87eb3f9180b2b0470409b24fb39b8a1941520 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Tue, 11 Nov 2014 11:14:45 +0000
Subject: xen/arm: remove handling of XENFEAT_grant_map_identity
The feature has been removed from Xen. Also Linux cannot use it on ARM32
without CONFIG_ARM_LPAE.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
---
include/xen/interface/features.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h
index 14334d0161d5..131a6ccdba25 100644
--- a/include/xen/interface/features.h
+++ b/include/xen/interface/features.h
@@ -53,9 +53,6 @@
/* operation as Dom0 is supported */
#define XENFEAT_dom0 11
-/* Xen also maps grant references at pfn = mfn */
-#define XENFEAT_grant_map_identity 12
-
#define XENFEAT_NR_SUBMAPS 1
#endif /* __XEN_PUBLIC_FEATURES_H__ */
--
cgit v1.2.1
From da095a996090a412c3b6292c7a8680661dca157d Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 21 Nov 2014 11:08:39 +0000
Subject: xen/arm: introduce GNTTABOP_cache_flush
Introduce support for new hypercall GNTTABOP_cache_flush.
Use it to perform cache flashing on pages used for dma when necessary.
If GNTTABOP_cache_flush is supported by the hypervisor, we don't need to
bounce dma map operations that involve foreign grants and non-coherent
devices.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---
include/xen/interface/grant_table.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'include')
diff --git a/include/xen/interface/grant_table.h b/include/xen/interface/grant_table.h
index e40fae9bf11a..bcce56439d64 100644
--- a/include/xen/interface/grant_table.h
+++ b/include/xen/interface/grant_table.h
@@ -478,6 +478,25 @@ struct gnttab_get_version {
};
DEFINE_GUEST_HANDLE_STRUCT(gnttab_get_version);
+/*
+ * Issue one or more cache maintenance operations on a portion of a
+ * page granted to the calling domain by a foreign domain.
+ */
+#define GNTTABOP_cache_flush 12
+struct gnttab_cache_flush {
+ union {
+ uint64_t dev_bus_addr;
+ grant_ref_t ref;
+ } a;
+ uint16_t offset; /* offset from start of grant */
+ uint16_t length; /* size within the grant */
+#define GNTTAB_CACHE_CLEAN (1<<0)
+#define GNTTAB_CACHE_INVAL (1<<1)
+#define GNTTAB_CACHE_SOURCE_GREF (1<<31)
+ uint32_t op;
+};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_cache_flush);
+
/*
* Bitfield values for update_pin_status.flags.
*/
--
cgit v1.2.1
From ac8010221d3fa8697151dfe9a1bb2c504adc68c1 Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Wed, 3 Dec 2014 16:40:27 -0500
Subject: driver core: Provide an wrapper around the mutex to do lockdep
warnings
Instead of open-coding it in drivers that want to double check
that their functions are indeed holding the device lock.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Suggested-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
include/linux/device.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/device.h b/include/linux/device.h
index ce1f21608b16..41d6a7555c6b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -911,6 +911,11 @@ static inline void device_unlock(struct device *dev)
mutex_unlock(&dev->mutex);
}
+static inline void device_lock_assert(struct device *dev)
+{
+ lockdep_assert_held(&dev->mutex);
+}
+
void driver_init(void);
/*
--
cgit v1.2.1
From 98d9b271250bd83337e3ed66d63e7deefcda8712 Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Wed, 3 Dec 2014 16:40:31 -0500
Subject: PCI: Expose pci_load_saved_state for public consumption.
We have the pci_load_and_free_saved_state, and pci_store_saved_state
but are missing the functionality to just load the state
multiple times in the PCI device without having to free/save
the state.
This patch makes it possible to use this function.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
include/linux/pci.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 4c8ac5fcc224..42ae347d3fc7 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1004,6 +1004,8 @@ void __iomem __must_check *pci_platform_rom(struct pci_dev *pdev, size_t *size);
int pci_save_state(struct pci_dev *dev);
void pci_restore_state(struct pci_dev *dev);
struct pci_saved_state *pci_store_saved_state(struct pci_dev *dev);
+int pci_load_saved_state(struct pci_dev *dev,
+ struct pci_saved_state *state);
int pci_load_and_free_saved_state(struct pci_dev *dev,
struct pci_saved_state **state);
struct pci_cap_saved_state *pci_find_saved_cap(struct pci_dev *dev, char cap);
--
cgit v1.2.1
From d4ae84a02bc65cec29608bc417a969fc2ec75449 Mon Sep 17 00:00:00 2001
From: Igor Mammedov <imammedo@redhat.com>
Date: Mon, 1 Dec 2014 17:29:25 +0000
Subject: kvm: search_memslots: add simple LRU memslot caching
In typical guest boot workload only 2-3 memslots are used
extensively, and at that it's mostly the same memslot
lookup operation.
Adding LRU cache improves average lookup time from
46 to 28 cycles (~40%) for this workload.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 231dd9472226..1a371447fd45 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -353,6 +353,7 @@ struct kvm_memslots {
struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM];
/* The mapping table from slot id to the index in memslots[]. */
short id_to_index[KVM_MEM_SLOTS_NUM];
+ atomic_t lru_slot;
};
struct kvm {
@@ -790,12 +791,19 @@ static inline void kvm_guest_exit(void)
static inline struct kvm_memory_slot *
search_memslots(struct kvm_memslots *slots, gfn_t gfn)
{
- struct kvm_memory_slot *memslot;
+ int slot = atomic_read(&slots->lru_slot);
+ struct kvm_memory_slot *memslot = &slots->memslots[slot];
+
+ if (gfn >= memslot->base_gfn &&
+ gfn < memslot->base_gfn + memslot->npages)
+ return memslot;
kvm_for_each_memslot(memslot, slots)
if (gfn >= memslot->base_gfn &&
- gfn < memslot->base_gfn + memslot->npages)
+ gfn < memslot->base_gfn + memslot->npages) {
+ atomic_set(&slots->lru_slot, memslot - slots->memslots);
return memslot;
+ }
return NULL;
}
--
cgit v1.2.1
From 9c1a5d38780e652275aa55362dbee0d7e827e069 Mon Sep 17 00:00:00 2001
From: Igor Mammedov <imammedo@redhat.com>
Date: Mon, 1 Dec 2014 17:29:27 +0000
Subject: kvm: optimize GFN to memslot lookup with large slots amount
Current linear search doesn't scale well when
large amount of memslots is used and looked up slot
is not in the beginning memslots array.
Taking in account that memslots don't overlap, it's
possible to switch sorting order of memslots array from
'npages' to 'base_gfn' and use binary search for
memslot lookup by GFN.
As result of switching to binary search lookup times
are reduced with large amount of memslots.
Following is a table of search_memslot() cycles
during WS2008R2 guest boot.
boot, boot + ~10 min
mostly same of using it,
slot lookup randomized lookup
max average average
cycles cycles cycles
13 slots : 1450 28 30
13 slots : 1400 30 40
binary search
117 slots : 13000 30 460
117 slots : 2000 35 180
binary search
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_host.h | 34 ++++++++++++++++++++++------------
1 file changed, 22 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 1a371447fd45..193bca68372d 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -354,6 +354,7 @@ struct kvm_memslots {
/* The mapping table from slot id to the index in memslots[]. */
short id_to_index[KVM_MEM_SLOTS_NUM];
atomic_t lru_slot;
+ int used_slots;
};
struct kvm {
@@ -791,19 +792,28 @@ static inline void kvm_guest_exit(void)
static inline struct kvm_memory_slot *
search_memslots(struct kvm_memslots *slots, gfn_t gfn)
{
+ int start = 0, end = slots->used_slots;
int slot = atomic_read(&slots->lru_slot);
- struct kvm_memory_slot *memslot = &slots->memslots[slot];
-
- if (gfn >= memslot->base_gfn &&
- gfn < memslot->base_gfn + memslot->npages)
- return memslot;
-
- kvm_for_each_memslot(memslot, slots)
- if (gfn >= memslot->base_gfn &&
- gfn < memslot->base_gfn + memslot->npages) {
- atomic_set(&slots->lru_slot, memslot - slots->memslots);
- return memslot;
- }
+ struct kvm_memory_slot *memslots = slots->memslots;
+
+ if (gfn >= memslots[slot].base_gfn &&
+ gfn < memslots[slot].base_gfn + memslots[slot].npages)
+ return &memslots[slot];
+
+ while (start < end) {
+ slot = start + (end - start) / 2;
+
+ if (gfn >= memslots[slot].base_gfn)
+ end = slot;
+ else
+ start = slot + 1;
+ }
+
+ if (gfn >= memslots[start].base_gfn &&
+ gfn < memslots[start].base_gfn + memslots[start].npages) {
+ atomic_set(&slots->lru_slot, start);
+ return &memslots[start];
+ }
return NULL;
}
--
cgit v1.2.1
From 0b4bc768dc289731983ba5223555ffabe08eefdd Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@iki.fi>
Date: Wed, 15 Oct 2014 13:38:15 -0300
Subject: [media] v4l: Add V4L2_SEL_TGT_NATIVE_SIZE selection target
The V4L2_SEL_TGT_NATIVE_SIZE target is used to denote e.g. the size of a
sensor's pixel array.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/v4l2-common.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/v4l2-common.h b/include/uapi/linux/v4l2-common.h
index 2f6f8cafe773..15273987093e 100644
--- a/include/uapi/linux/v4l2-common.h
+++ b/include/uapi/linux/v4l2-common.h
@@ -43,6 +43,8 @@
#define V4L2_SEL_TGT_CROP_DEFAULT 0x0001
/* Cropping bounds */
#define V4L2_SEL_TGT_CROP_BOUNDS 0x0002
+/* Native frame size */
+#define V4L2_SEL_TGT_NATIVE_SIZE 0x0003
/* Current composing area */
#define V4L2_SEL_TGT_COMPOSE 0x0100
/* Default composing area */
--
cgit v1.2.1
From 8af0345926c8cdbbf80102aa3eab8a6519c23272 Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@iki.fi>
Date: Tue, 18 Nov 2014 02:27:00 -0300
Subject: [media] v4l: Add input and output capability flags for native size
setting
Add input and output capability flags for setting native size of the device,
and document them.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/videodev2.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index ced659e1b9f6..d279c1b75cf7 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1324,6 +1324,7 @@ struct v4l2_input {
#define V4L2_IN_CAP_DV_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */
#define V4L2_IN_CAP_CUSTOM_TIMINGS V4L2_IN_CAP_DV_TIMINGS /* For compatibility */
#define V4L2_IN_CAP_STD 0x00000004 /* Supports S_STD */
+#define V4L2_IN_CAP_NATIVE_SIZE 0x00000008 /* Supports setting native size */
/*
* V I D E O O U T P U T S
@@ -1347,6 +1348,7 @@ struct v4l2_output {
#define V4L2_OUT_CAP_DV_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */
#define V4L2_OUT_CAP_CUSTOM_TIMINGS V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */
#define V4L2_OUT_CAP_STD 0x00000004 /* Supports S_STD */
+#define V4L2_OUT_CAP_NATIVE_SIZE 0x00000008 /* Supports setting native size */
/*
* C O N T R O L S
--
cgit v1.2.1
From 8918465163171322c77a19d5258a95f56d89d2e4 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Wed, 16 Apr 2014 09:24:44 +0200
Subject: memory: Add NVIDIA Tegra memory controller support
The memory controller on NVIDIA Tegra exposes various knobs that can be
used to tune the behaviour of the clients attached to it.
Currently this driver sets up the latency allowance registers to the HW
defaults. Eventually an API should be exported by this driver (via a
custom API or a generic subsystem) to allow clients to register latency
requirements.
This driver also registers an IOMMU (SMMU) that's implemented by the
memory controller. It is supported on Tegra30, Tegra114 and Tegra124
currently. Tegra20 has a GART instead.
The Tegra SMMU operates on memory clients and SWGROUPs. A memory client
is a unidirectional, special-purpose DMA master. A SWGROUP represents a
set of memory clients that form a logical functional unit corresponding
to a single device. Typically a device has two clients: one client for
read transactions and one client for write transactions, but there are
also devices that have only read clients, but many of them (such as the
display controllers).
Because there is no 1:1 relationship between memory clients and devices
the driver keeps a table of memory clients and the SWGROUPs that they
belong to per SoC. Note that this is an exception and due to the fact
that the SMMU is tightly integrated with the rest of the Tegra SoC. The
use of these tables is discouraged in drivers for generic IOMMU devices
such as the ARM SMMU because the same IOMMU could be used in any number
of SoCs and keeping such tables for each SoC would not scale.
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/dt-bindings/memory/tegra114-mc.h | 25 ++++++++
include/dt-bindings/memory/tegra124-mc.h | 31 +++++++++
include/dt-bindings/memory/tegra30-mc.h | 24 +++++++
include/soc/tegra/mc.h | 107 +++++++++++++++++++++++++++++++
4 files changed, 187 insertions(+)
create mode 100644 include/dt-bindings/memory/tegra114-mc.h
create mode 100644 include/dt-bindings/memory/tegra124-mc.h
create mode 100644 include/dt-bindings/memory/tegra30-mc.h
create mode 100644 include/soc/tegra/mc.h
(limited to 'include')
diff --git a/include/dt-bindings/memory/tegra114-mc.h b/include/dt-bindings/memory/tegra114-mc.h
new file mode 100644
index 000000000000..8f48985a3139
--- /dev/null
+++ b/include/dt-bindings/memory/tegra114-mc.h
@@ -0,0 +1,25 @@
+#ifndef DT_BINDINGS_MEMORY_TEGRA114_MC_H
+#define DT_BINDINGS_MEMORY_TEGRA114_MC_H
+
+#define TEGRA_SWGROUP_PTC 0
+#define TEGRA_SWGROUP_DC 1
+#define TEGRA_SWGROUP_DCB 2
+#define TEGRA_SWGROUP_EPP 3
+#define TEGRA_SWGROUP_G2 4
+#define TEGRA_SWGROUP_AVPC 5
+#define TEGRA_SWGROUP_NV 6
+#define TEGRA_SWGROUP_HDA 7
+#define TEGRA_SWGROUP_HC 8
+#define TEGRA_SWGROUP_MSENC 9
+#define TEGRA_SWGROUP_PPCS 10
+#define TEGRA_SWGROUP_VDE 11
+#define TEGRA_SWGROUP_MPCORELP 12
+#define TEGRA_SWGROUP_MPCORE 13
+#define TEGRA_SWGROUP_VI 14
+#define TEGRA_SWGROUP_ISP 15
+#define TEGRA_SWGROUP_XUSB_HOST 16
+#define TEGRA_SWGROUP_XUSB_DEV 17
+#define TEGRA_SWGROUP_EMUCIF 18
+#define TEGRA_SWGROUP_TSEC 19
+
+#endif
diff --git a/include/dt-bindings/memory/tegra124-mc.h b/include/dt-bindings/memory/tegra124-mc.h
new file mode 100644
index 000000000000..7d8ee798f34e
--- /dev/null
+++ b/include/dt-bindings/memory/tegra124-mc.h
@@ -0,0 +1,31 @@
+#ifndef DT_BINDINGS_MEMORY_TEGRA124_MC_H
+#define DT_BINDINGS_MEMORY_TEGRA124_MC_H
+
+#define TEGRA_SWGROUP_PTC 0
+#define TEGRA_SWGROUP_DC 1
+#define TEGRA_SWGROUP_DCB 2
+#define TEGRA_SWGROUP_AFI 3
+#define TEGRA_SWGROUP_AVPC 4
+#define TEGRA_SWGROUP_HDA 5
+#define TEGRA_SWGROUP_HC 6
+#define TEGRA_SWGROUP_MSENC 7
+#define TEGRA_SWGROUP_PPCS 8
+#define TEGRA_SWGROUP_SATA 9
+#define TEGRA_SWGROUP_VDE 10
+#define TEGRA_SWGROUP_MPCORELP 11
+#define TEGRA_SWGROUP_MPCORE 12
+#define TEGRA_SWGROUP_ISP2 13
+#define TEGRA_SWGROUP_XUSB_HOST 14
+#define TEGRA_SWGROUP_XUSB_DEV 15
+#define TEGRA_SWGROUP_ISP2B 16
+#define TEGRA_SWGROUP_TSEC 17
+#define TEGRA_SWGROUP_A9AVP 18
+#define TEGRA_SWGROUP_GPU 19
+#define TEGRA_SWGROUP_SDMMC1A 20
+#define TEGRA_SWGROUP_SDMMC2A 21
+#define TEGRA_SWGROUP_SDMMC3A 22
+#define TEGRA_SWGROUP_SDMMC4A 23
+#define TEGRA_SWGROUP_VIC 24
+#define TEGRA_SWGROUP_VI 25
+
+#endif
diff --git a/include/dt-bindings/memory/tegra30-mc.h b/include/dt-bindings/memory/tegra30-mc.h
new file mode 100644
index 000000000000..502beb03d777
--- /dev/null
+++ b/include/dt-bindings/memory/tegra30-mc.h
@@ -0,0 +1,24 @@
+#ifndef DT_BINDINGS_MEMORY_TEGRA30_MC_H
+#define DT_BINDINGS_MEMORY_TEGRA30_MC_H
+
+#define TEGRA_SWGROUP_PTC 0
+#define TEGRA_SWGROUP_DC 1
+#define TEGRA_SWGROUP_DCB 2
+#define TEGRA_SWGROUP_EPP 3
+#define TEGRA_SWGROUP_G2 4
+#define TEGRA_SWGROUP_MPE 5
+#define TEGRA_SWGROUP_VI 6
+#define TEGRA_SWGROUP_AFI 7
+#define TEGRA_SWGROUP_AVPC 8
+#define TEGRA_SWGROUP_NV 9
+#define TEGRA_SWGROUP_NV2 10
+#define TEGRA_SWGROUP_HDA 11
+#define TEGRA_SWGROUP_HC 12
+#define TEGRA_SWGROUP_PPCS 13
+#define TEGRA_SWGROUP_SATA 14
+#define TEGRA_SWGROUP_VDE 15
+#define TEGRA_SWGROUP_MPCORELP 16
+#define TEGRA_SWGROUP_MPCORE 17
+#define TEGRA_SWGROUP_ISP 18
+
+#endif
diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
new file mode 100644
index 000000000000..63deb8d9f82a
--- /dev/null
+++ b/include/soc/tegra/mc.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2014 NVIDIA Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __SOC_TEGRA_MC_H__
+#define __SOC_TEGRA_MC_H__
+
+#include <linux/types.h>
+
+struct clk;
+struct device;
+struct page;
+
+struct tegra_smmu_enable {
+ unsigned int reg;
+ unsigned int bit;
+};
+
+/* latency allowance */
+struct tegra_mc_la {
+ unsigned int reg;
+ unsigned int shift;
+ unsigned int mask;
+ unsigned int def;
+};
+
+struct tegra_mc_client {
+ unsigned int id;
+ const char *name;
+ unsigned int swgroup;
+
+ unsigned int fifo_size;
+
+ struct tegra_smmu_enable smmu;
+ struct tegra_mc_la la;
+};
+
+struct tegra_smmu_swgroup {
+ unsigned int swgroup;
+ unsigned int reg;
+};
+
+struct tegra_smmu_ops {
+ void (*flush_dcache)(struct page *page, unsigned long offset,
+ size_t size);
+};
+
+struct tegra_smmu_soc {
+ const struct tegra_mc_client *clients;
+ unsigned int num_clients;
+
+ const struct tegra_smmu_swgroup *swgroups;
+ unsigned int num_swgroups;
+
+ bool supports_round_robin_arbitration;
+ bool supports_request_limit;
+
+ unsigned int num_asids;
+
+ const struct tegra_smmu_ops *ops;
+};
+
+struct tegra_mc;
+struct tegra_smmu;
+
+#ifdef CONFIG_TEGRA_IOMMU_SMMU
+struct tegra_smmu *tegra_smmu_probe(struct device *dev,
+ const struct tegra_smmu_soc *soc,
+ struct tegra_mc *mc);
+#else
+static inline struct tegra_smmu *
+tegra_smmu_probe(struct device *dev, const struct tegra_smmu_soc *soc,
+ struct tegra_mc *mc)
+{
+ return NULL;
+}
+#endif
+
+struct tegra_mc_soc {
+ const struct tegra_mc_client *clients;
+ unsigned int num_clients;
+
+ const unsigned int *emem_regs;
+ unsigned int num_emem_regs;
+
+ unsigned int num_address_bits;
+ unsigned int atom_size;
+
+ const struct tegra_smmu_soc *smmu;
+};
+
+struct tegra_mc {
+ struct device *dev;
+ struct tegra_smmu *smmu;
+ void __iomem *regs;
+ struct clk *clk;
+ int irq;
+
+ const struct tegra_mc_soc *soc;
+ unsigned long tick;
+};
+
+#endif /* __SOC_TEGRA_MC_H__ */
--
cgit v1.2.1
From 91d63156c9e6b4aa83297b19289e366e1fdcfad4 Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Thu, 27 Nov 2014 00:15:01 -0300
Subject: [media] media: v4l2-image-sizes.h: correct the SVGA height definition
SVGA height should be 600 not 680.
Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/media/v4l2-image-sizes.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/media/v4l2-image-sizes.h b/include/media/v4l2-image-sizes.h
index c70c917b97a8..a07d7a683bd9 100644
--- a/include/media/v4l2-image-sizes.h
+++ b/include/media/v4l2-image-sizes.h
@@ -26,7 +26,7 @@
#define QVGA_HEIGHT 240
#define SVGA_WIDTH 800
-#define SVGA_HEIGHT 680
+#define SVGA_HEIGHT 600
#define SXGA_WIDTH 1280
#define SXGA_HEIGHT 1024
--
cgit v1.2.1
From 435d5f4bb2ccba3b791d9ef61d2590e30b8e806e Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 31 Oct 2014 22:56:04 -0400
Subject: common object embedded into various struct ....ns
for now - just move corresponding ->proc_inum instances over there
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/ipc_namespace.h | 3 ++-
include/linux/ns_common.h | 8 ++++++++
include/linux/pid_namespace.h | 3 ++-
include/linux/user_namespace.h | 3 ++-
include/linux/utsname.h | 3 ++-
include/net/net_namespace.h | 3 ++-
6 files changed, 18 insertions(+), 5 deletions(-)
create mode 100644 include/linux/ns_common.h
(limited to 'include')
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 35e7eca4e33b..52a640128151 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -6,6 +6,7 @@
#include <linux/rwsem.h>
#include <linux/notifier.h>
#include <linux/nsproxy.h>
+#include <linux/ns_common.h>
/*
* ipc namespace events
@@ -68,7 +69,7 @@ struct ipc_namespace {
/* user_ns which owns the ipc ns */
struct user_namespace *user_ns;
- unsigned int proc_inum;
+ struct ns_common ns;
};
extern struct ipc_namespace init_ipc_ns;
diff --git a/include/linux/ns_common.h b/include/linux/ns_common.h
new file mode 100644
index 000000000000..e7db1cd54047
--- /dev/null
+++ b/include/linux/ns_common.h
@@ -0,0 +1,8 @@
+#ifndef _LINUX_NS_COMMON_H
+#define _LINUX_NS_COMMON_H
+
+struct ns_common {
+ unsigned int inum;
+};
+
+#endif
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index 1997ffc295a7..b9cf6c51b181 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -8,6 +8,7 @@
#include <linux/threads.h>
#include <linux/nsproxy.h>
#include <linux/kref.h>
+#include <linux/ns_common.h>
struct pidmap {
atomic_t nr_free;
@@ -43,7 +44,7 @@ struct pid_namespace {
kgid_t pid_gid;
int hide_pid;
int reboot; /* group exit code if this pidns was rebooted */
- unsigned int proc_inum;
+ struct ns_common ns;
};
extern struct pid_namespace init_pid_ns;
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index e95372654f09..4cf06c140e21 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -3,6 +3,7 @@
#include <linux/kref.h>
#include <linux/nsproxy.h>
+#include <linux/ns_common.h>
#include <linux/sched.h>
#include <linux/err.h>
@@ -26,7 +27,7 @@ struct user_namespace {
int level;
kuid_t owner;
kgid_t group;
- unsigned int proc_inum;
+ struct ns_common ns;
/* Register of per-UID persistent keyrings for this namespace */
#ifdef CONFIG_PERSISTENT_KEYRINGS
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 239e27733d6c..5093f58ae192 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -5,6 +5,7 @@
#include <linux/sched.h>
#include <linux/kref.h>
#include <linux/nsproxy.h>
+#include <linux/ns_common.h>
#include <linux/err.h>
#include <uapi/linux/utsname.h>
@@ -23,7 +24,7 @@ struct uts_namespace {
struct kref kref;
struct new_utsname name;
struct user_namespace *user_ns;
- unsigned int proc_inum;
+ struct ns_common ns;
};
extern struct uts_namespace init_uts_ns;
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index e0d64667a4b3..2e8756b8c775 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -26,6 +26,7 @@
#endif
#include <net/netns/nftables.h>
#include <net/netns/xfrm.h>
+#include <linux/ns_common.h>
struct user_namespace;
struct proc_dir_entry;
@@ -60,7 +61,7 @@ struct net {
struct user_namespace *user_ns; /* Owning user namespace */
- unsigned int proc_inum;
+ struct ns_common ns;
struct proc_dir_entry *proc_net;
struct proc_dir_entry *proc_net_stat;
--
cgit v1.2.1
From 64964528b24ea390824f0e5ce9d34b8d39b28cde Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 1 Nov 2014 00:37:32 -0400
Subject: make proc_ns_operations work with struct ns_common * instead of void
*
We can do that now. And kill ->inum(), while we are at it - all instances
are identical.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/proc_ns.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index 34a1e105bef4..f284959391fd 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -6,18 +6,18 @@
struct pid_namespace;
struct nsproxy;
+struct ns_common;
struct proc_ns_operations {
const char *name;
int type;
- void *(*get)(struct task_struct *task);
- void (*put)(void *ns);
- int (*install)(struct nsproxy *nsproxy, void *ns);
- unsigned int (*inum)(void *ns);
+ struct ns_common *(*get)(struct task_struct *task);
+ void (*put)(struct ns_common *ns);
+ int (*install)(struct nsproxy *nsproxy, struct ns_common *ns);
};
struct proc_ns {
- void *ns;
+ struct ns_common *ns;
const struct proc_ns_operations *ns_ops;
};
--
cgit v1.2.1
From 6344c433a452b1a05d03a61a6a85d89f793bb7b8 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 1 Nov 2014 00:45:45 -0400
Subject: new helpers: ns_alloc_inum/ns_free_inum
take struct ns_common *, for now simply wrappers around proc_{alloc,free}_inum()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/proc_ns.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index f284959391fd..f5780ee7f8f7 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -71,4 +71,7 @@ static inline bool proc_ns_inode(struct inode *inode) { return false; }
#endif /* CONFIG_PROC_FS */
+#define ns_alloc_inum(ns) proc_alloc_inum(&(ns)->inum)
+#define ns_free_inum(ns) proc_free_inum((ns)->inum)
+
#endif /* _LINUX_PROC_NS_H */
--
cgit v1.2.1
From 33c429405a2c8d9e42afb9fee88a63cfb2de1e98 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 1 Nov 2014 02:32:53 -0400
Subject: copy address of proc_ns_ops into ns_common
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/ns_common.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/ns_common.h b/include/linux/ns_common.h
index e7db1cd54047..ce23cf4bbe69 100644
--- a/include/linux/ns_common.h
+++ b/include/linux/ns_common.h
@@ -1,7 +1,10 @@
#ifndef _LINUX_NS_COMMON_H
#define _LINUX_NS_COMMON_H
+struct proc_ns_operations;
+
struct ns_common {
+ const struct proc_ns_operations *ops;
unsigned int inum;
};
--
cgit v1.2.1
From f77c80142e1afe6d5c16975ca5d7d1fc324b16f9 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 1 Nov 2014 03:13:17 -0400
Subject: bury struct proc_ns in fs/proc
a) make get_proc_ns() return a pointer to struct ns_common
b) mirror ns_ops in dentry->d_fsdata of ns dentries, so that
is_mnt_ns_file() could get away with fewer dereferences.
That way struct proc_ns becomes invisible outside of fs/proc/*.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/proc_ns.h | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index f5780ee7f8f7..2837ff41cfe3 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -16,11 +16,6 @@ struct proc_ns_operations {
int (*install)(struct nsproxy *nsproxy, struct ns_common *ns);
};
-struct proc_ns {
- struct ns_common *ns;
- const struct proc_ns_operations *ns_ops;
-};
-
extern const struct proc_ns_operations netns_operations;
extern const struct proc_ns_operations utsns_operations;
extern const struct proc_ns_operations ipcns_operations;
@@ -44,7 +39,7 @@ enum {
extern int pid_ns_prepare_proc(struct pid_namespace *ns);
extern void pid_ns_release_proc(struct pid_namespace *ns);
extern struct file *proc_ns_fget(int fd);
-extern struct proc_ns *get_proc_ns(struct inode *);
+extern struct ns_common *get_proc_ns(struct inode *);
extern int proc_alloc_inum(unsigned int *pino);
extern void proc_free_inum(unsigned int inum);
extern bool proc_ns_inode(struct inode *inode);
@@ -59,7 +54,7 @@ static inline struct file *proc_ns_fget(int fd)
return ERR_PTR(-EINVAL);
}
-static inline struct proc_ns *get_proc_ns(struct inode *inode) { return NULL; }
+static inline struct ns_common *get_proc_ns(struct inode *inode) { return NULL; }
static inline int proc_alloc_inum(unsigned int *inum)
{
--
cgit v1.2.1
From d0747f10ed5fec3d1f40c4b350dc9673011fc8e2 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Thu, 4 Dec 2014 14:42:25 -0800
Subject: uapi: fix to export linux/vm_sockets.h
A typo "header=y" was introduced by commit 7071cf7fc435 ("uapi: add
missing network related headers to kbuild").
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/uapi/linux/Kbuild | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 4c94f31a8c99..8523f9bb72f2 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -427,7 +427,7 @@ header-y += virtio_net.h
header-y += virtio_pci.h
header-y += virtio_ring.h
header-y += virtio_rng.h
-header=y += vm_sockets.h
+header-y += vm_sockets.h
header-y += vt.h
header-y += wait.h
header-y += wanrouter.h
--
cgit v1.2.1
From a89612aac3cc6b13e6738bd70e05faf6f3fc8d9e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 5 Dec 2014 10:55:53 +0100
Subject: Bluetooth: Add HCI_RSSI_INVALID for unknown RSSI value
The Bluetooth core specification defines the value 127 as invalid for
RSSI values. So instead of hard coding it, lets add a constant for it.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 569c077778b6..b6f7be1eb919 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -412,6 +412,7 @@ enum {
/* The core spec defines 127 as the "not available" value */
#define HCI_TX_POWER_INVALID 127
+#define HCI_RSSI_INVALID 127
#define HCI_ROLE_MASTER 0x00
#define HCI_ROLE_SLAVE 0x01
--
cgit v1.2.1
From 7e61df5423fe88a3e92bce59fb47686e52fb1d84 Mon Sep 17 00:00:00 2001
From: Jakub Pawlowski <jpawlowski@google.com>
Date: Fri, 5 Dec 2014 10:55:54 +0100
Subject: Bluetooth: Add definitions for MGMT_OP_START_SERVICE_DISCOVERY
This patch adds the opcode and structure for Start Service Discovery
operation.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/mgmt.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 9b382ea34fd9..95c34d5180fa 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -498,6 +498,15 @@ struct mgmt_cp_set_public_address {
} __packed;
#define MGMT_SET_PUBLIC_ADDRESS_SIZE 6
+#define MGMT_OP_START_SERVICE_DISCOVERY 0x003A
+struct mgmt_cp_start_service_discovery {
+ __u8 type;
+ __s8 rssi;
+ __le16 uuid_count;
+ __u8 uuids[0][16];
+} __packed;
+#define MGMT_START_SERVICE_DISCOVERY_SIZE 4
+
#define MGMT_EV_CMD_COMPLETE 0x0001
struct mgmt_ev_cmd_complete {
__le16 opcode;
--
cgit v1.2.1
From 37eab042be2196751ff108e6892951338b9a0969 Mon Sep 17 00:00:00 2001
From: Jakub Pawlowski <jpawlowski@google.com>
Date: Fri, 5 Dec 2014 10:55:55 +0100
Subject: Bluetooth: Add extra discovery fields for storing filter information
With the upcoming addition of support for Start Service Discovery, the
discovery handling needs to filter on RSSI and UUID values. For that
they need to be stored in the discovery handling. This patch adds the
appropiate fields and also make sure they are reset when discovery
has been stopped.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci_core.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 1dae7001fc31..83ca58b9f4c1 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -75,6 +75,9 @@ struct discovery_state {
u32 last_adv_flags;
u8 last_adv_data[HCI_MAX_AD_LENGTH];
u8 last_adv_data_len;
+ s8 rssi;
+ u16 uuid_count;
+ u8 (*uuids)[16];
};
struct hci_conn_hash {
@@ -503,6 +506,7 @@ static inline void discovery_init(struct hci_dev *hdev)
INIT_LIST_HEAD(&hdev->discovery.all);
INIT_LIST_HEAD(&hdev->discovery.unknown);
INIT_LIST_HEAD(&hdev->discovery.resolve);
+ hdev->discovery.rssi = HCI_RSSI_INVALID;
}
bool hci_discovery_active(struct hci_dev *hdev);
--
cgit v1.2.1
From 0256325ed666af8346c89deb9d437c2209f463cb Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 5 Dec 2014 11:45:21 +0100
Subject: Bluetooth: Add helper function for clearing the discovery filter
The discovery filter allocates memory for its UUID list. So use
a helper function to free it and reset it to default states.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci_core.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 83ca58b9f4c1..f07b1450b3c2 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -509,6 +509,14 @@ static inline void discovery_init(struct hci_dev *hdev)
hdev->discovery.rssi = HCI_RSSI_INVALID;
}
+static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
+{
+ hdev->discovery.rssi = HCI_RSSI_INVALID;
+ hdev->discovery.uuid_count = 0;
+ kfree(hdev->discovery.uuids);
+ hdev->discovery.uuids = NULL;
+}
+
bool hci_discovery_active(struct hci_dev *hdev);
void hci_discovery_set_state(struct hci_dev *hdev, int state);
--
cgit v1.2.1
From da25cf6a9869cff52b4fd189fdcd322ad2daf023 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 5 Dec 2014 13:03:35 +0100
Subject: Bluetooth: Report invalid RSSI for service discovery and background
scan
When using Start Service Discovery and when background scanning is used
to report devices, the RSSI is reported or the value 127 is provided in
case RSSI in unavailable.
For Start Discovery the value 0 is reported to keep backwards
compatibility with the existing users.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci_core.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index f07b1450b3c2..3c7827005c25 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -75,6 +75,7 @@ struct discovery_state {
u32 last_adv_flags;
u8 last_adv_data[HCI_MAX_AD_LENGTH];
u8 last_adv_data_len;
+ bool report_invalid_rssi;
s8 rssi;
u16 uuid_count;
u8 (*uuids)[16];
@@ -506,11 +507,13 @@ static inline void discovery_init(struct hci_dev *hdev)
INIT_LIST_HEAD(&hdev->discovery.all);
INIT_LIST_HEAD(&hdev->discovery.unknown);
INIT_LIST_HEAD(&hdev->discovery.resolve);
+ hdev->discovery.report_invalid_rssi = true;
hdev->discovery.rssi = HCI_RSSI_INVALID;
}
static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
{
+ hdev->discovery.report_invalid_rssi = true;
hdev->discovery.rssi = HCI_RSSI_INVALID;
hdev->discovery.uuid_count = 0;
kfree(hdev->discovery.uuids);
--
cgit v1.2.1
From a42a7a1fb5f1f9004b023594609dc22da02fc08b Mon Sep 17 00:00:00 2001
From: Robin Murphy <Robin.Murphy@arm.com>
Date: Fri, 5 Dec 2014 13:41:02 +0000
Subject: iommu: store DT-probed IOMMU data privately
Since the data pointer in the DT node is public and may be overwritten
by conflicting code, move the DT-probed IOMMU ops to a private list
where they will be safe.
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
[will: added missing #include and missing ')']
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
include/linux/of_iommu.h | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
index d03abbb11c34..16c75547d725 100644
--- a/include/linux/of_iommu.h
+++ b/include/linux/of_iommu.h
@@ -31,16 +31,8 @@ static inline struct iommu_ops *of_iommu_configure(struct device *dev)
#endif /* CONFIG_OF_IOMMU */
-static inline void of_iommu_set_ops(struct device_node *np,
- const struct iommu_ops *ops)
-{
- np->data = (struct iommu_ops *)ops;
-}
-
-static inline struct iommu_ops *of_iommu_get_ops(struct device_node *np)
-{
- return np->data;
-}
+void of_iommu_set_ops(struct device_node *np, struct iommu_ops *ops);
+struct iommu_ops *of_iommu_get_ops(struct device_node *np);
extern struct of_device_id __iommu_of_table;
--
cgit v1.2.1
From aba96bada40d19a0afbc3bfcb3a47e29e23df7ea Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Fri, 5 Dec 2014 20:49:07 +0530
Subject: dmaengine: clarify the issue_pending expectations
Although Documentation explicitly mentions the expectations, the comment in
header can be lead to different expectation so clear up the confusion
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
include/linux/dmaengine.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 653a1fd07ae8..40cd75e21ea2 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -447,7 +447,8 @@ struct dmaengine_unmap_data {
* communicate status
* @phys: physical address of the descriptor
* @chan: target channel for this operation
- * @tx_submit: set the prepared descriptor(s) to be executed by the engine
+ * @tx_submit: accept the descriptor, assign ordered cookie and mark the
+ * descriptor pending. To be pushed on .issue_pending() call
* @callback: routine to call after this operation is complete
* @callback_param: general parameter to pass to the callback routine
* ---async_tx api specific fields---
--
cgit v1.2.1
From af8e80731a94ff9de9508b01d9e5d931d538dc6b Mon Sep 17 00:00:00 2001
From: Stephan Mueller <smueller@chronox.de>
Date: Wed, 3 Dec 2014 20:55:42 +0100
Subject: crypto: af_alg - add user space interface for AEAD
AEAD requires the caller to specify the following information separate
from the data stream. This information allows the AEAD interface handler
to identify the AAD, ciphertext/plaintext and the authentication tag:
* Associated authentication data of arbitrary length and
length
* Length of authentication tag for encryption
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
include/crypto/if_alg.h | 1 +
include/uapi/linux/if_alg.h | 2 ++
2 files changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
index d61c11170213..cd62bf4289e9 100644
--- a/include/crypto/if_alg.h
+++ b/include/crypto/if_alg.h
@@ -42,6 +42,7 @@ struct af_alg_completion {
struct af_alg_control {
struct af_alg_iv *iv;
int op;
+ unsigned int aead_assoclen;
};
struct af_alg_type {
diff --git a/include/uapi/linux/if_alg.h b/include/uapi/linux/if_alg.h
index 0f9acce5b1ff..f2acd2fde1f3 100644
--- a/include/uapi/linux/if_alg.h
+++ b/include/uapi/linux/if_alg.h
@@ -32,6 +32,8 @@ struct af_alg_iv {
#define ALG_SET_KEY 1
#define ALG_SET_IV 2
#define ALG_SET_OP 3
+#define ALG_SET_AEAD_ASSOCLEN 4
+#define ALG_SET_AEAD_AUTHSIZE 5
/* Operations */
#define ALG_OP_DECRYPT 0
--
cgit v1.2.1
From 2331fd46f5452944f32a2bc78fa05026617887c6 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 5 Dec 2014 16:20:10 +0100
Subject: Bluetooth: Move LE advertising report defines to the right location
All Bluetooth commands and events are ordered by its opcode or event
id, but for some reason this one now stands out. So move it to its
correct spot in the list.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci.h | 38 +++++++++++++++++++-------------------
1 file changed, 19 insertions(+), 19 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b6f7be1eb919..edb55e54e039 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1751,6 +1751,25 @@ struct hci_ev_le_conn_complete {
__u8 clk_accurancy;
} __packed;
+/* Advertising report event types */
+#define LE_ADV_IND 0x00
+#define LE_ADV_DIRECT_IND 0x01
+#define LE_ADV_SCAN_IND 0x02
+#define LE_ADV_NONCONN_IND 0x03
+#define LE_ADV_SCAN_RSP 0x04
+
+#define ADDR_LE_DEV_PUBLIC 0x00
+#define ADDR_LE_DEV_RANDOM 0x01
+
+#define HCI_EV_LE_ADVERTISING_REPORT 0x02
+struct hci_ev_le_advertising_info {
+ __u8 evt_type;
+ __u8 bdaddr_type;
+ bdaddr_t bdaddr;
+ __u8 length;
+ __u8 data[0];
+} __packed;
+
#define HCI_EV_LE_CONN_UPDATE_COMPLETE 0x03
struct hci_ev_le_conn_update_complete {
__u8 status;
@@ -1776,25 +1795,6 @@ struct hci_ev_le_remote_conn_param_req {
__le16 timeout;
} __packed;
-/* Advertising report event types */
-#define LE_ADV_IND 0x00
-#define LE_ADV_DIRECT_IND 0x01
-#define LE_ADV_SCAN_IND 0x02
-#define LE_ADV_NONCONN_IND 0x03
-#define LE_ADV_SCAN_RSP 0x04
-
-#define ADDR_LE_DEV_PUBLIC 0x00
-#define ADDR_LE_DEV_RANDOM 0x01
-
-#define HCI_EV_LE_ADVERTISING_REPORT 0x02
-struct hci_ev_le_advertising_info {
- __u8 evt_type;
- __u8 bdaddr_type;
- bdaddr_t bdaddr;
- __u8 length;
- __u8 data[0];
-} __packed;
-
/* Internal events generated by Bluetooth stack */
#define HCI_EV_STACK_INTERNAL 0xfd
struct hci_ev_stack_internal {
--
cgit v1.2.1
From 32c9d43fa5deac40eee5a689428367982f147044 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 5 Dec 2014 16:20:11 +0100
Subject: Bluetooth: Add definitions for LE Direct Advertising Report event
This patch adds the event id and data structures for the LE Direct
Advertising Report event.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index edb55e54e039..ffebd393af4f 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1795,6 +1795,16 @@ struct hci_ev_le_remote_conn_param_req {
__le16 timeout;
} __packed;
+#define HCI_EV_LE_DIRECT_ADV_REPORT 0x0B
+struct hci_ev_le_direct_adv_info {
+ __u8 evt_type;
+ __u8 bdaddr_type;
+ bdaddr_t bdaddr;
+ __u8 direct_addr_type;
+ bdaddr_t direct_addr;
+ __s8 rssi;
+} __packed;
+
/* Internal events generated by Bluetooth stack */
#define HCI_EV_STACK_INTERNAL 0xfd
struct hci_ev_stack_internal {
--
cgit v1.2.1
From 4b71bba45c420065044bf040b2284893ab900d03 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 5 Dec 2014 16:20:12 +0100
Subject: Bluetooth: Enabled LE Direct Advertising Report event if supported
When the controller supports the Extended Scanner Filter Policies, it
supports the LE Direct Advertising Report event. However by default
that event is blocked by the LE event mask. It is required to enable
it during controller setup.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
include/net/bluetooth/hci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index ffebd393af4f..40129b3838b2 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -343,6 +343,7 @@ enum {
#define HCI_LE_ENCRYPTION 0x01
#define HCI_LE_CONN_PARAM_REQ_PROC 0x02
#define HCI_LE_PING 0x10
+#define HCI_LE_EXT_SCAN_POLICY 0x80
/* Connection modes */
#define HCI_CM_ACTIVE 0x0000
--
cgit v1.2.1
From 7ff4d90b4c24a03666f296c3d4878cd39001e81e Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Fri, 5 Dec 2014 17:19:27 -0600
Subject: groups: Consolidate the setgroups permission checks
Today there are 3 instances of setgroups and due to an oversight their
permission checking has diverged. Add a common function so that
they may all share the same permission checking code.
This corrects the current oversight in the current permission checks
and adds a helper to avoid this in the future.
A user namespace security fix will update this new helper, shortly.
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
include/linux/cred.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/cred.h b/include/linux/cred.h
index b2d0820837c4..2fb2ca2127ed 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -68,6 +68,7 @@ extern void groups_free(struct group_info *);
extern int set_current_groups(struct group_info *);
extern void set_groups(struct cred *, struct group_info *);
extern int groups_search(const struct group_info *, kgid_t);
+extern bool may_setgroups(void);
/* access the groups "array" with this macro */
#define GROUP_AT(gi, i) \
--
cgit v1.2.1
From 4fc11e61f46dd66730a18e8136607386007ee8c9 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Mon, 1 Dec 2014 10:16:17 +0900
Subject: uapi: fix to export linux/vm_sockets.h
A typo "header=y" was introduced by commit 7071cf7fc435
(uapi: add missing network related headers to kbuild).
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/Kbuild | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 4c94f31a8c99..8523f9bb72f2 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -427,7 +427,7 @@ header-y += virtio_net.h
header-y += virtio_pci.h
header-y += virtio_ring.h
header-y += virtio_rng.h
-header=y += vm_sockets.h
+header-y += vm_sockets.h
header-y += vt.h
header-y += wait.h
header-y += wanrouter.h
--
cgit v1.2.1
From ddd872bc3098f9d9abe1680a6b2013e59e3337f7 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Mon, 1 Dec 2014 15:06:34 -0800
Subject: bpf: verifier: add checks for BPF_ABS | BPF_IND instructions
introduce program type BPF_PROG_TYPE_SOCKET_FILTER that is used
for attaching programs to sockets where ctx == skb.
add verifier checks for ABS/IND instructions which can only be seen
in socket filters, therefore the check:
if (env->prog->aux->prog_type != BPF_PROG_TYPE_SOCKET_FILTER)
verbose("BPF_LD_ABS|IND instructions are only allowed in socket filters\n");
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/bpf.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 4a3d0f84f178..45da7ec7d274 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -117,6 +117,7 @@ enum bpf_map_type {
enum bpf_prog_type {
BPF_PROG_TYPE_UNSPEC,
+ BPF_PROG_TYPE_SOCKET_FILTER,
};
/* flags for BPF_MAP_UPDATE_ELEM command */
--
cgit v1.2.1
From 89aa075832b0da4402acebd698d0411dcc82d03e Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Mon, 1 Dec 2014 15:06:35 -0800
Subject: net: sock: allow eBPF programs to be attached to sockets
introduce new setsockopt() command:
setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, sizeof(prog_fd))
where prog_fd was received from syscall bpf(BPF_PROG_LOAD, attr, ...)
and attr->prog_type == BPF_PROG_TYPE_SOCKET_FILTER
setsockopt() calls bpf_prog_get() which increments refcnt of the program,
so it doesn't get unloaded while socket is using the program.
The same eBPF program can be attached to multiple sockets.
User task exit automatically closes socket which calls sk_filter_uncharge()
which decrements refcnt of eBPF program
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/bpf.h | 4 ++++
include/linux/filter.h | 1 +
include/uapi/asm-generic/socket.h | 3 +++
3 files changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 75e94eaa228b..bbfceb756452 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -128,7 +128,11 @@ struct bpf_prog_aux {
struct work_struct work;
};
+#ifdef CONFIG_BPF_SYSCALL
void bpf_prog_put(struct bpf_prog *prog);
+#else
+static inline void bpf_prog_put(struct bpf_prog *prog) {}
+#endif
struct bpf_prog *bpf_prog_get(u32 ufd);
/* verify correctness of eBPF program */
int bpf_check(struct bpf_prog *fp, union bpf_attr *attr);
diff --git a/include/linux/filter.h b/include/linux/filter.h
index ca95abd2bed1..caac2087a4d5 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -381,6 +381,7 @@ int bpf_prog_create(struct bpf_prog **pfp, struct sock_fprog_kern *fprog);
void bpf_prog_destroy(struct bpf_prog *fp);
int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk);
+int sk_attach_bpf(u32 ufd, struct sock *sk);
int sk_detach_filter(struct sock *sk);
int bpf_check_classic(const struct sock_filter *filter, unsigned int flen);
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index f541ccefd4ac..5c15c2a5c123 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -84,4 +84,7 @@
#define SO_INCOMING_CPU 49
+#define SO_ATTACH_BPF 50
+#define SO_DETACH_BPF SO_DETACH_FILTER
+
#endif /* __ASM_GENERIC_SOCKET_H */
--
cgit v1.2.1
From 6cfad789610342443923737a9def8b637151dc4d Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 27 Nov 2014 08:08:10 +0000
Subject: ASoC: rsnd: rename SSI function name of PIO
Current R-Car sound SSI PIO/DMA mode are using interrupt.
it is no longer "xxx_pio_xxx", rename it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
include/sound/rcar_snd.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/sound/rcar_snd.h b/include/sound/rcar_snd.h
index d76412b84b48..83284cae464c 100644
--- a/include/sound/rcar_snd.h
+++ b/include/sound/rcar_snd.h
@@ -36,14 +36,14 @@
#define RSND_SSI_CLK_PIN_SHARE (1 << 31)
#define RSND_SSI_NO_BUSIF (1 << 30) /* SSI+DMA without BUSIF */
-#define RSND_SSI(_dma_id, _pio_irq, _flags) \
-{ .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
+#define RSND_SSI(_dma_id, _irq, _flags) \
+{ .dma_id = _dma_id, .irq = _irq, .flags = _flags }
#define RSND_SSI_UNUSED \
-{ .dma_id = -1, .pio_irq = -1, .flags = 0 }
+{ .dma_id = -1, .irq = -1, .flags = 0 }
struct rsnd_ssi_platform_info {
int dma_id;
- int pio_irq;
+ int irq;
u32 flags;
};
--
cgit v1.2.1
From bac78aabcfece0c493b2ad824c68fbdc20448cbc Mon Sep 17 00:00:00 2001
From: Andri Yngvason <andri.yngvason@marel.com>
Date: Wed, 3 Dec 2014 17:54:13 +0000
Subject: can: dev: Consolidate and unify state change handling
The handling of can error states is different between platforms.
This is an attempt to correct that problem.
I've moved this handling into a generic function for changing the
error state. This ensures that error state changes are handled
the same way everywhere (where this function is used).
This new mechanism also adds reverse state transitioning in error
frames, i.e. the user will be notified through the socket interface
when the state goes down.
Signed-off-by: Andri Yngvason <andri.yngvason@marel.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
include/linux/can/dev.h | 3 +++
include/uapi/linux/can/error.h | 1 +
2 files changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index b37ea95bc348..c05ff0f9f9a5 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -127,6 +127,9 @@ void unregister_candev(struct net_device *dev);
int can_restart_now(struct net_device *dev);
void can_bus_off(struct net_device *dev);
+void can_change_state(struct net_device *dev, struct can_frame *cf,
+ enum can_state tx_state, enum can_state rx_state);
+
void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev,
unsigned int idx);
unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx);
diff --git a/include/uapi/linux/can/error.h b/include/uapi/linux/can/error.h
index c247446ab25a..1c508be9687f 100644
--- a/include/uapi/linux/can/error.h
+++ b/include/uapi/linux/can/error.h
@@ -71,6 +71,7 @@
#define CAN_ERR_CRTL_TX_PASSIVE 0x20 /* reached error passive status TX */
/* (at least one error counter exceeds */
/* the protocol-defined level of 127) */
+#define CAN_ERR_CRTL_ACTIVE 0x40 /* recovered to error active state */
/* error in CAN protocol (type) / data[2] */
#define CAN_ERR_PROT_UNSPEC 0x00 /* unspecified */
--
cgit v1.2.1
From 74faaf7aa64c76b60db0f5c994fd43a46be772ce Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sat, 6 Dec 2014 21:20:20 +0100
Subject: genirq: Move irq_chip_write_msi_msg() helper to core
No point to expose this to the world. The only legitimate user is the
core code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
---
include/linux/irq.h | 6 ------
1 file changed, 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 8badf34baf0f..33da579d727c 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -461,12 +461,6 @@ extern int irq_chip_set_affinity_parent(struct irq_data *data,
bool force);
#endif
-static inline void irq_chip_write_msi_msg(struct irq_data *data,
- struct msi_msg *msg)
-{
- data->chip->irq_write_msi_msg(data, msg);
-}
-
/* Handling of unhandled and spurious interrupts: */
extern void note_interrupt(unsigned int irq, struct irq_desc *desc,
irqreturn_t action_ret);
--
cgit v1.2.1
From 00f634bc522dedc8418fb6d967a76cc4c10376a5 Mon Sep 17 00:00:00 2001
From: Ley Foon Tan <lftan@altera.com>
Date: Thu, 6 Nov 2014 15:19:34 +0800
Subject: asm-generic: add generic futex for !CONFIG_SMP
Follow m68k futex implementation for !CONFIG_SMP.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
include/asm-generic/futex.h | 114 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 114 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index 01f227e14254..b59b5a52637e 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -5,6 +5,119 @@
#include <linux/uaccess.h>
#include <asm/errno.h>
+#ifndef CONFIG_SMP
+/*
+ * The following implementation only for uniprocessor machines.
+ * For UP, it's relies on the fact that pagefault_disable() also disables
+ * preemption to ensure mutual exclusion.
+ *
+ */
+
+/**
+ * futex_atomic_op_inuser() - Atomic arithmetic operation with constant
+ * argument and comparison of the previous
+ * futex value with another constant.
+ *
+ * @encoded_op: encoded operation to execute
+ * @uaddr: pointer to user space address
+ *
+ * Return:
+ * 0 - On success
+ * <0 - On error
+ */
+static inline int
+futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+{
+ int op = (encoded_op >> 28) & 7;
+ int cmp = (encoded_op >> 24) & 15;
+ int oparg = (encoded_op << 8) >> 20;
+ int cmparg = (encoded_op << 20) >> 20;
+ int oldval, ret;
+ u32 tmp;
+
+ if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
+ oparg = 1 << oparg;
+
+ pagefault_disable();
+
+ ret = -EFAULT;
+ if (unlikely(get_user(oldval, uaddr) != 0))
+ goto out_pagefault_enable;
+
+ ret = 0;
+ tmp = oldval;
+
+ switch (op) {
+ case FUTEX_OP_SET:
+ tmp = oparg;
+ break;
+ case FUTEX_OP_ADD:
+ tmp += oparg;
+ break;
+ case FUTEX_OP_OR:
+ tmp |= oparg;
+ break;
+ case FUTEX_OP_ANDN:
+ tmp &= ~oparg;
+ break;
+ case FUTEX_OP_XOR:
+ tmp ^= oparg;
+ break;
+ default:
+ ret = -ENOSYS;
+ }
+
+ if (ret == 0 && unlikely(put_user(tmp, uaddr) != 0))
+ ret = -EFAULT;
+
+out_pagefault_enable:
+ pagefault_enable();
+
+ if (ret == 0) {
+ switch (cmp) {
+ case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
+ case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
+ case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
+ case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
+ case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
+ case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
+ default: ret = -ENOSYS;
+ }
+ }
+ return ret;
+}
+
+/**
+ * futex_atomic_cmpxchg_inatomic() - Compare and exchange the content of the
+ * uaddr with newval if the current value is
+ * oldval.
+ * @uval: pointer to store content of @uaddr
+ * @uaddr: pointer to user space address
+ * @oldval: old value
+ * @newval: new value to store to @uaddr
+ *
+ * Return:
+ * 0 - On success
+ * <0 - On error
+ */
+static inline int
+futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+ u32 oldval, u32 newval)
+{
+ u32 val;
+
+ if (unlikely(get_user(val, uaddr) != 0))
+ return -EFAULT;
+
+ if (val == oldval && unlikely(put_user(newval, uaddr) != 0))
+ return -EFAULT;
+
+ *uval = val;
+
+ return 0;
+}
+
+#else
static inline int
futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
{
@@ -54,4 +167,5 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
return -ENOSYS;
}
+#endif /* CONFIG_SMP */
#endif
--
cgit v1.2.1
From 4fdace8d4f8bee9ba163646e8530394f9c36e67e Mon Sep 17 00:00:00 2001
From: Ley Foon Tan <lftan@altera.com>
Date: Thu, 6 Nov 2014 15:19:54 +0800
Subject: Add ELF machine define for Nios2
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
include/uapi/linux/elf-em.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/elf-em.h b/include/uapi/linux/elf-em.h
index aa90bc98b6e2..ae99f7743cf4 100644
--- a/include/uapi/linux/elf-em.h
+++ b/include/uapi/linux/elf-em.h
@@ -34,6 +34,7 @@
#define EM_MN10300 89 /* Panasonic/MEI MN10300, AM33 */
#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
#define EM_BLACKFIN 106 /* ADI Blackfin Processor */
+#define EM_ALTERA_NIOS2 113 /* Altera Nios II soft-core processor */
#define EM_TI_C6000 140 /* TI C6X DSPs */
#define EM_AARCH64 183 /* ARM 64 bit */
#define EM_FRV 0x5441 /* Fujitsu FR-V */
--
cgit v1.2.1
From fe5afb13d46e76b07ab7e732f2b694dcafef4d9d Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 5 Dec 2014 11:31:22 +0100
Subject: mmc: core: Let mmc_send_tuning() to take struct mmc_host* as
parameter
To be able to use mmc_send_tuning() prior the struct mmc_card has been
allocated, let's convert it to take the struct mmc_host* as parameter
instead.
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Dong Aisheng <b29396@freescale.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
---
include/linux/mmc/core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index c4bdaa128693..cb2b0400d284 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -154,7 +154,7 @@ extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool,
bool, bool);
extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
-extern int mmc_send_tuning(struct mmc_card *card);
+extern int mmc_send_tuning(struct mmc_host *host);
extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
#define MMC_ERASE_ARG 0x00000000
--
cgit v1.2.1
From a3b63979f8a32af9e975a793fd0f612d42072740 Mon Sep 17 00:00:00 2001
From: Micky Ching <micky_ching@realsil.com.cn>
Date: Fri, 5 Dec 2014 13:54:26 +0800
Subject: mfd: rtsx: Add func to split u32 into register
Add helper function to write u32 to registers, if we want to put u32
value to 4 continuous register, this can help us reduce tedious work.
Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/mfd/rtsx_pci.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
index 1604dda4edcf..0c12628e91c6 100644
--- a/include/linux/mfd/rtsx_pci.h
+++ b/include/linux/mfd/rtsx_pci.h
@@ -558,6 +558,7 @@
#define SD_SAMPLE_POINT_CTL 0xFDA7
#define SD_PUSH_POINT_CTL 0xFDA8
#define SD_CMD0 0xFDA9
+#define SD_CMD_START 0x40
#define SD_CMD1 0xFDAA
#define SD_CMD2 0xFDAB
#define SD_CMD3 0xFDAC
@@ -995,4 +996,12 @@ static inline int rtsx_pci_update_cfg_byte(struct rtsx_pcr *pcr, int addr,
return pci_write_config_byte(pcr->pci, addr, (val & mask) | append);
}
+static inline void rtsx_pci_write_be32(struct rtsx_pcr *pcr, u16 reg, u32 val)
+{
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg, 0xFF, val >> 24);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 1, 0xFF, val >> 16);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 2, 0xFF, val >> 8);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 3, 0xFF, val);
+}
+
#endif
--
cgit v1.2.1
From bf35df66f1c613b46e054ca35ceb5caddacc6fa8 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 8 Dec 2014 15:44:47 +0100
Subject: ALSA: jack: Add dummy snd_jack_set_key() definition
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
For fixing a build error with CONFIG_SND_JACK=n
sound/soc/codecs/ts3a227e.c:223:2: error: implicit declaration of function ‘snd_jack_set_key’ [-Werror=implicit-function-declaration]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/jack.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/sound/jack.h b/include/sound/jack.h
index 67f2bbcd515e..218235030ebc 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -105,6 +105,13 @@ static inline void snd_jack_set_parent(struct snd_jack *jack,
{
}
+static inline int snd_jack_set_key(struct snd_jack *jack,
+ enum snd_jack_types type,
+ int keytype)
+{
+ return 0;
+}
+
static inline void snd_jack_report(struct snd_jack *jack, int status)
{
}
--
cgit v1.2.1
From ad9914ac3b1f5c12ef2cf1c58a6ddda306fb79d4 Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Mon, 8 Dec 2014 18:04:19 +0100
Subject: thermal: of: Rename struct __thermal_trip to struct thermal_trip
This patch changes name of struct __thermal_trip to thermal_trip and moves
declaration of the latter to ./include/linux/thermal.h for better visibility.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/linux/thermal.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
(limited to 'include')
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 5bc28a70014e..b8d91efa854e 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -303,6 +303,21 @@ struct thermal_zone_of_device_ops {
int (*get_trend)(void *, long *);
};
+/**
+ * struct thermal_trip - representation of a point in temperature domain
+ * @np: pointer to struct device_node that this trip point was created from
+ * @temperature: temperature value in miliCelsius
+ * @hysteresis: relative hysteresis in miliCelsius
+ * @type: trip point type
+ */
+
+struct thermal_trip {
+ struct device_node *np;
+ unsigned long int temperature;
+ unsigned long int hysteresis;
+ enum thermal_trip_type type;
+};
+
/* Function declarations */
#ifdef CONFIG_THERMAL_OF
struct thermal_zone_device *
--
cgit v1.2.1
From b49b55bd4fba6aa9bb25459e0ac3991c60c4aba4 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 20 Oct 2014 16:13:19 +1000
Subject: drm/displayid: add displayid defines and edid extension (v2)
These are just taken from the DisplayID v1.3 spec, and the
DDC spec.
v2: use __packed (Jani)
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_displayid.h | 76 +++++++++++++++++++++++++++++++++++++++++++++
include/drm/drm_edid.h | 2 ++
2 files changed, 78 insertions(+)
create mode 100644 include/drm/drm_displayid.h
(limited to 'include')
diff --git a/include/drm/drm_displayid.h b/include/drm/drm_displayid.h
new file mode 100644
index 000000000000..623b4e98e748
--- /dev/null
+++ b/include/drm/drm_displayid.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright © 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef DRM_DISPLAYID_H
+#define DRM_DISPLAYID_H
+
+#define DATA_BLOCK_PRODUCT_ID 0x00
+#define DATA_BLOCK_DISPLAY_PARAMETERS 0x01
+#define DATA_BLOCK_COLOR_CHARACTERISTICS 0x02
+#define DATA_BLOCK_TYPE_1_DETAILED_TIMING 0x03
+#define DATA_BLOCK_TYPE_2_DETAILED_TIMING 0x04
+#define DATA_BLOCK_TYPE_3_SHORT_TIMING 0x05
+#define DATA_BLOCK_TYPE_4_DMT_TIMING 0x06
+#define DATA_BLOCK_VESA_TIMING 0x07
+#define DATA_BLOCK_CEA_TIMING 0x08
+#define DATA_BLOCK_VIDEO_TIMING_RANGE 0x09
+#define DATA_BLOCK_PRODUCT_SERIAL_NUMBER 0x0a
+#define DATA_BLOCK_GP_ASCII_STRING 0x0b
+#define DATA_BLOCK_DISPLAY_DEVICE_DATA 0x0c
+#define DATA_BLOCK_INTERFACE_POWER_SEQUENCING 0x0d
+#define DATA_BLOCK_TRANSFER_CHARACTERISTICS 0x0e
+#define DATA_BLOCK_DISPLAY_INTERFACE 0x0f
+#define DATA_BLOCK_STEREO_DISPLAY_INTERFACE 0x10
+#define DATA_BLOCK_TILED_DISPLAY 0x12
+
+#define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
+
+#define PRODUCT_TYPE_EXTENSION 0
+#define PRODUCT_TYPE_TEST 1
+#define PRODUCT_TYPE_PANEL 2
+#define PRODUCT_TYPE_MONITOR 3
+#define PRODUCT_TYPE_TV 4
+#define PRODUCT_TYPE_REPEATER 5
+#define PRODUCT_TYPE_DIRECT_DRIVE 6
+
+struct displayid_hdr {
+ u8 rev;
+ u8 bytes;
+ u8 prod_id;
+ u8 ext_count;
+} __packed;
+
+struct displayid_block {
+ u8 tag;
+ u8 rev;
+ u8 num_bytes;
+} __packed;
+
+struct displayid_tiled_block {
+ struct displayid_block base;
+ u8 tile_cap;
+ u8 topo[3];
+ u8 tile_size[4];
+ u8 tile_pixel_bezel[5];
+ u8 topology_id[8];
+} __packed;
+
+#endif
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index d59240ffb1f7..87d85e81d3a7 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -27,12 +27,14 @@
#define EDID_LENGTH 128
#define DDC_ADDR 0x50
+#define DDC_ADDR2 0x52 /* E-DDC 1.2 - where DisplayID can hide */
#define CEA_EXT 0x02
#define VTB_EXT 0x10
#define DI_EXT 0x40
#define LS_EXT 0x50
#define MI_EXT 0x60
+#define DISPLAYID_EXT 0x70
struct est_timings {
u8 t1;
--
cgit v1.2.1
From 138f9ebb9755a8cf09fd6a9ff8d011aaf5fb478f Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 20 Oct 2014 16:17:17 +1000
Subject: drm: add tile_group support. (v3)
A tile group is an identifier shared by a single monitor,
DisplayID topology has 8 bytes we can use for this, just
use those for now until something else comes up in the
future. We assign these to an idr and use the idr to
tell userspace what connectors are in the same tile group.
DisplayID v1.3 says the serial number must be unique for
displays from the same manufacturer.
v2:
destroy idr (dvdhrm)
add docbook (danvet)
airlied:- not sure how to make docbook add fns to tile group section.
v3: fix missing unlock.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_crtc.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index dd2c16e43333..8f760a2373f9 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -137,6 +137,14 @@ struct drm_display_info {
u8 cea_rev;
};
+/* data corresponds to displayid vend/prod/serial */
+struct drm_tile_group {
+ struct kref refcount;
+ struct drm_device *dev;
+ int id;
+ u8 group_data[8];
+};
+
struct drm_framebuffer_funcs {
/* note: use drm_framebuffer_remove() */
void (*destroy)(struct drm_framebuffer *framebuffer);
@@ -978,6 +986,7 @@ struct drm_mode_config {
struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
struct mutex idr_mutex; /* for IDR management */
struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
+ struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
/* this is limited to one for now */
struct mutex fb_lock; /* proctects global and per-file fb lists */
@@ -1326,6 +1335,13 @@ extern void drm_set_preferred_mode(struct drm_connector *connector,
extern int drm_edid_header_is_valid(const u8 *raw_edid);
extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
extern bool drm_edid_is_valid(struct edid *edid);
+
+extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
+ char topology[8]);
+extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
+ char topology[8]);
+extern void drm_mode_put_tile_group(struct drm_device *dev,
+ struct drm_tile_group *tg);
struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
int hsize, int vsize, int fresh,
bool rb);
--
cgit v1.2.1
From c6a0aed4d493936f61cd153db84531026705c94d Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 20 Oct 2014 16:28:02 +1000
Subject: drm/mst: cached EDID for logical ports (v2)
Logical ports are never going to have EDID changes,
they are used for the internal ports on MST monitors.
We cache the EDIDs from these to save time at MST probe.
v2: drop misplace tile property line, meant for other patch.
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_dp_mst_helper.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index cec6383bbdb8..00c1da927245 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -92,6 +92,8 @@ struct drm_dp_mst_port {
struct drm_dp_vcpi vcpi;
struct drm_connector *connector;
struct drm_dp_mst_topology_mgr *mgr;
+
+ struct edid *cached_edid; /* for DP logical ports - make tiling work */
};
/**
@@ -474,7 +476,7 @@ int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool ms
int drm_dp_mst_hpd_irq(struct drm_dp_mst_topology_mgr *mgr, u8 *esi, bool *handled);
-enum drm_connector_status drm_dp_mst_detect_port(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
+enum drm_connector_status drm_dp_mst_detect_port(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
--
cgit v1.2.1
From 40d9b043a89e2301e1f97ade055a73ecc28e9afe Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 20 Oct 2014 16:29:33 +1000
Subject: drm/connector: store tile information from displayid (v3)
This creates a tile group from DisplayID block, and
stores the pieces of parsed info from the DisplayID block
into the connector.
v2: add missing signoff, add new connector bits to docs.
v3: remove some debugging.
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_crtc.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 8f760a2373f9..01744ed79250 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -607,6 +607,15 @@ struct drm_encoder {
* @bad_edid_counter: track sinks that give us an EDID with invalid checksum
* @debugfs_entry: debugfs directory for this connector
* @state: current atomic state for this connector
+ * @has_tile: is this connector connected to a tiled monitor
+ * @tile_group: tile group for the connected monitor
+ * @tile_is_single_monitor: whether the tile is one monitor housing
+ * @num_h_tile: number of horizontal tiles in the tile group
+ * @num_v_tile: number of vertical tiles in the tile group
+ * @tile_h_loc: horizontal location of this tile
+ * @tile_v_loc: vertical location of this tile
+ * @tile_h_size: horizontal size of this tile.
+ * @tile_v_size: vertical size of this tile.
*
* Each connector may be connected to one or more CRTCs, or may be clonable by
* another connector if they can share a CRTC. Each connector also has a specific
@@ -669,6 +678,15 @@ struct drm_connector {
struct dentry *debugfs_entry;
struct drm_connector_state *state;
+
+ /* DisplayID bits */
+ bool has_tile;
+ struct drm_tile_group *tile_group;
+ bool tile_is_single_monitor;
+
+ uint8_t num_h_tile, num_v_tile;
+ uint8_t tile_h_loc, tile_v_loc;
+ uint16_t tile_h_size, tile_v_size;
};
/**
--
cgit v1.2.1
From 6f134d7bb4347ab4c66ef123efb838fedb54186f Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 20 Oct 2014 16:30:50 +1000
Subject: drm/tile: expose the tile property to userspace (v3)
This takes the tiling info from the connector and
exposes it to userspace, as a blob object in a
connector property.
The contents of the blob is ABI.
v2: add property + function documentation.
v3: move property setup from previous patch.
add boilerplate + fix long line (Daniel)
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_crtc.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 01744ed79250..b86329813ad3 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -651,6 +651,8 @@ struct drm_connector {
struct drm_property_blob *path_blob_ptr;
+ struct drm_property_blob *tile_blob_ptr;
+
uint8_t polled; /* DRM_CONNECTOR_POLL_* */
/* requested DPMS state */
@@ -1048,6 +1050,7 @@ struct drm_mode_config {
struct drm_property *edid_property;
struct drm_property *dpms_property;
struct drm_property *path_property;
+ struct drm_property *tile_property;
struct drm_property *plane_type_property;
struct drm_property *rotation_property;
@@ -1217,6 +1220,7 @@ extern void drm_mode_config_cleanup(struct drm_device *dev);
extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
const char *path);
+int drm_mode_connector_set_tile_property(struct drm_connector *connector);
extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
const struct edid *edid);
--
cgit v1.2.1
From b0ee9e7fa5b461a91f24d1d03b10c6bf162c86f9 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 20 Oct 2014 16:31:53 +1000
Subject: drm/fb: add support for tiled monitor configurations. (v2)
This adds fbdev/con support for tiled monitors, so that we
only set a mode on the correct half of the monitor, or
span the two halves if needed.
v2: remove unneeded ERROR, fix | vs ||
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_fb_helper.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index f4ad254e3488..b597068103aa 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -34,9 +34,14 @@ struct drm_fb_helper;
#include <linux/kgdb.h>
+struct drm_fb_offset {
+ int x, y;
+};
+
struct drm_fb_helper_crtc {
struct drm_mode_set mode_set;
struct drm_display_mode *desired_mode;
+ int x, y;
};
struct drm_fb_helper_surface_size {
@@ -72,6 +77,7 @@ struct drm_fb_helper_funcs {
bool (*initial_config)(struct drm_fb_helper *fb_helper,
struct drm_fb_helper_crtc **crtcs,
struct drm_display_mode **modes,
+ struct drm_fb_offset *offsets,
bool *enabled, int width, int height);
};
--
cgit v1.2.1
From a280455fa87053eed59de8464200d03ae4caa8c3 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 27 Nov 2014 14:48:42 -0500
Subject: iov_iter.c: handle ITER_KVEC directly
... without bothering with copy_..._user()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/uio.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 9b1581414cd4..6e16945ec832 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -31,6 +31,7 @@ struct iov_iter {
size_t count;
union {
const struct iovec *iov;
+ const struct kvec *kvec;
const struct bio_vec *bvec;
};
unsigned long nr_segs;
--
cgit v1.2.1
From 184a4bf623fa587067851d25435fcb2f41de445b Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Mon, 8 Dec 2014 18:04:21 +0100
Subject: thermal: of: Extend current of-thermal.c code to allow setting
emulated temp
Before this change it was only possible to set get_temp() and get_trend()
methods to be used in the common code handling passing parameters via
device tree to "cpu-thermal" CPU thermal zone device.
Now it is possible to also set emulated value of temperature for debug
purposes.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/linux/thermal.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index b8d91efa854e..99be7fc79c3b 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -297,10 +297,13 @@ struct thermal_genl_event {
*
* Optional:
* @get_trend: a pointer to a function that reads the sensor temperature trend.
+ * @set_emul_temp: a pointer to a function that sets sensor emulated
+ * temperature.
*/
struct thermal_zone_of_device_ops {
int (*get_temp)(void *, long *);
int (*get_trend)(void *, long *);
+ int (*set_emul_temp)(void *, unsigned long);
};
/**
--
cgit v1.2.1
From 829ae9d611651467fe6cd7be834bd33ca6b28dfe Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Sun, 30 Nov 2014 22:22:34 -0500
Subject: net-timestamp: allow reading recv cmsg on errqueue with origin tstamp
Allow reading of timestamps and cmsg at the same time on all relevant
socket families. One use is to correlate timestamps with egress
device, by asking for cmsg IP_PKTINFO.
on AF_INET sockets, call the relevant function (ip_cmsg_recv). To
avoid changing legacy expectations, only do so if the caller sets a
new timestamping flag SOF_TIMESTAMPING_OPT_CMSG.
on AF_INET6 sockets, IPV6_PKTINFO and all other recv cmsg are already
returned for all origins. only change is to set ifindex, which is
not initialized for all error origins.
In both cases, only generate the pktinfo message if an ifindex is
known. This is not the case for ACK timestamps.
The difference between the protocol families is probably a historical
accident as a result of the different conditions for generating cmsg
in the relevant ip(v6)_recv_error function:
ipv4: if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP) {
ipv6: if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL) {
At one time, this was the same test bar for the ICMP/ICMP6
distinction. This is no longer true.
Signed-off-by: Willem de Bruijn <willemb@google.com>
----
Changes
v1 -> v2
large rewrite
- integrate with existing pktinfo cmsg generation code
- on ipv4: only send with new flag, to maintain legacy behavior
- on ipv6: send at most a single pktinfo cmsg
- on ipv6: initialize fields if not yet initialized
The recv cmsg interfaces are also relevant to the discussion of
whether looping packet headers is problematic. For v6, cmsgs that
identify many headers are already returned. This patch expands
that to v4. If it sounds reasonable, I will follow with patches
1. request timestamps without payload with SOF_TIMESTAMPING_OPT_TSONLY
(http://patchwork.ozlabs.org/patch/366967/)
2. sysctl to conditionally drop all timestamps that have payload or
cmsg from users without CAP_NET_RAW.
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/net_tstamp.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstamp.h
index ff354021bb69..edbc888ceb51 100644
--- a/include/uapi/linux/net_tstamp.h
+++ b/include/uapi/linux/net_tstamp.h
@@ -23,8 +23,9 @@ enum {
SOF_TIMESTAMPING_OPT_ID = (1<<7),
SOF_TIMESTAMPING_TX_SCHED = (1<<8),
SOF_TIMESTAMPING_TX_ACK = (1<<9),
+ SOF_TIMESTAMPING_OPT_CMSG = (1<<10),
- SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_TX_ACK,
+ SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_OPT_CMSG,
SOF_TIMESTAMPING_MASK = (SOF_TIMESTAMPING_LAST - 1) |
SOF_TIMESTAMPING_LAST
};
--
cgit v1.2.1
From c3582a2c4d0baf1fa3955c8b3d3d61308df474c7 Mon Sep 17 00:00:00 2001
From: Haiyang Zhang <haiyangz@microsoft.com>
Date: Mon, 1 Dec 2014 13:28:39 -0800
Subject: hyperv: Add support for vNIC hot removal
This patch adds proper handling of the vNIC hot removal event, which includes
a rescind-channel-offer message from the host side that triggers vNIC close and
removal. In this case, the notices to the host during close and removal is not
necessary because the channel is rescinded. This patch blocks these unnecessary
messages, and lets vNIC removal process complete normally.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/hyperv.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 08cfaff8a072..476c685ca6f9 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -650,6 +650,8 @@ struct vmbus_channel {
u8 monitor_grp;
u8 monitor_bit;
+ bool rescind; /* got rescind msg */
+
u32 ringbuffer_gpadlhandle;
/* Allocated memory for ring buffer */
--
cgit v1.2.1
From a604ec7e9ffea22fed84db8306585090e7a6e85d Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 01:08:00 -0500
Subject: csum_and_copy_..._iter()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/uio.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 6e16945ec832..28ed2d904deb 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -124,6 +124,8 @@ static inline void iov_iter_reexpand(struct iov_iter *i, size_t count)
{
i->count = count;
}
+size_t csum_and_copy_to_iter(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i);
+size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i);
int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len);
int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len);
--
cgit v1.2.1
From abb78f875f3fcedb88d85eef9f7be7aa474c6727 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 14:46:11 -0500
Subject: new helper: iov_iter_kvec()
initialization of kvec-backed iov_iter
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/uio.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 28ed2d904deb..c567655b9595 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -87,6 +87,8 @@ size_t iov_iter_zero(size_t bytes, struct iov_iter *);
unsigned long iov_iter_alignment(const struct iov_iter *i);
void iov_iter_init(struct iov_iter *i, int direction, const struct iovec *iov,
unsigned long nr_segs, size_t count);
+void iov_iter_kvec(struct iov_iter *i, int direction, const struct kvec *iov,
+ unsigned long nr_segs, size_t count);
ssize_t iov_iter_get_pages(struct iov_iter *i, struct page **pages,
size_t maxsize, unsigned maxpages, size_t *start);
ssize_t iov_iter_get_pages_alloc(struct iov_iter *i, struct page ***pages,
--
cgit v1.2.1
From aa583096d9767892983332e7c1a984bd17e3cd39 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 27 Nov 2014 20:27:08 -0500
Subject: copy_from_iter_nocache()
BTW, do we want memcpy_nocache()?
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/uio.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/uio.h b/include/linux/uio.h
index c567655b9595..bd8569a14c4a 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -83,6 +83,7 @@ size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
struct iov_iter *i);
size_t copy_to_iter(void *addr, size_t bytes, struct iov_iter *i);
size_t copy_from_iter(void *addr, size_t bytes, struct iov_iter *i);
+size_t copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i);
size_t iov_iter_zero(size_t bytes, struct iov_iter *);
unsigned long iov_iter_alignment(const struct iov_iter *i);
void iov_iter_init(struct iov_iter *i, int direction, const struct iovec *iov,
--
cgit v1.2.1
From b0ba512e25d729a43858ad1f6cb8b94dbb95dbeb Mon Sep 17 00:00:00 2001
From: Petri Gynther <pgynther@google.com>
Date: Mon, 1 Dec 2014 16:18:08 -0800
Subject: net: bcmgenet: enable driver to work without a device tree
Modify bcmgenet driver so that it can be used on Broadcom 7xxx
MIPS-based STB platforms without a device tree.
Signed-off-by: Petri Gynther <pgynther@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/platform_data/bcmgenet.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
create mode 100644 include/linux/platform_data/bcmgenet.h
(limited to 'include')
diff --git a/include/linux/platform_data/bcmgenet.h b/include/linux/platform_data/bcmgenet.h
new file mode 100644
index 000000000000..26af54321958
--- /dev/null
+++ b/include/linux/platform_data/bcmgenet.h
@@ -0,0 +1,18 @@
+#ifndef __LINUX_PLATFORM_DATA_BCMGENET_H__
+#define __LINUX_PLATFORM_DATA_BCMGENET_H__
+
+#include <linux/types.h>
+#include <linux/if_ether.h>
+#include <linux/phy.h>
+
+struct bcmgenet_platform_data {
+ bool mdio_enabled;
+ phy_interface_t phy_interface;
+ int phy_address;
+ int phy_speed;
+ int phy_duplex;
+ u8 mac_address[ETH_ALEN];
+ int genet_version;
+};
+
+#endif
--
cgit v1.2.1
From 97ede29e80eead50d8bd533cf163401b88c027be Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Tue, 2 Dec 2014 15:00:30 +0800
Subject: tipc: convert name table read-write lock to RCU
Convert tipc name table read-write lock to RCU. After this change,
a new spin lock is used to protect name table on write side while
RCU is applied on read side.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Tested-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/rculist.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 372ad5e0dcb8..aa79b3c24f66 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -542,6 +542,15 @@ static inline void hlist_add_behind_rcu(struct hlist_node *n,
pos = hlist_entry_safe(rcu_dereference_bh((pos)->member.next),\
typeof(*(pos)), member))
+/**
+ * hlist_for_each_entry_from_rcu - iterate over a hlist continuing from current point
+ * @pos: the type * to use as a loop cursor.
+ * @member: the name of the hlist_node within the struct.
+ */
+#define hlist_for_each_entry_from_rcu(pos, member) \
+ for (; pos; \
+ pos = hlist_entry_safe(rcu_dereference((pos)->member.next),\
+ typeof(*(pos)), member))
#endif /* __KERNEL__ */
#endif
--
cgit v1.2.1
From 0c7aac854f52d3302b88fd599216a810f490ab1f Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Tue, 2 Dec 2014 12:26:14 +0200
Subject: net/mlx5_core: Remove unused dev cap enum fields
These enumerations are not used so remove them.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx5/device.h | 8 --------
1 file changed, 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 1d67fd32e71c..ea4f1c46f761 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -219,23 +219,15 @@ enum {
};
enum {
- MLX5_DEV_CAP_FLAG_RC = 1LL << 0,
- MLX5_DEV_CAP_FLAG_UC = 1LL << 1,
- MLX5_DEV_CAP_FLAG_UD = 1LL << 2,
MLX5_DEV_CAP_FLAG_XRC = 1LL << 3,
- MLX5_DEV_CAP_FLAG_SRQ = 1LL << 6,
MLX5_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1LL << 8,
MLX5_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1LL << 9,
MLX5_DEV_CAP_FLAG_APM = 1LL << 17,
MLX5_DEV_CAP_FLAG_ATOMIC = 1LL << 18,
MLX5_DEV_CAP_FLAG_BLOCK_MCAST = 1LL << 23,
- MLX5_DEV_CAP_FLAG_ON_DMND_PG = 1LL << 24,
MLX5_DEV_CAP_FLAG_CQ_MODER = 1LL << 29,
MLX5_DEV_CAP_FLAG_RESIZE_CQ = 1LL << 30,
- MLX5_DEV_CAP_FLAG_RESIZE_SRQ = 1LL << 32,
MLX5_DEV_CAP_FLAG_DCT = 1LL << 37,
- MLX5_DEV_CAP_FLAG_REMOTE_FENCE = 1LL << 38,
- MLX5_DEV_CAP_FLAG_TLP_HINTS = 1LL << 39,
MLX5_DEV_CAP_FLAG_SIG_HAND_OVER = 1LL << 40,
MLX5_DEV_CAP_FLAG_CMDIF_CSUM = 3LL << 46,
};
--
cgit v1.2.1
From 9c0c112422a2a6b06fcddcaf21957676490cebba Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@redhat.com>
Date: Wed, 3 Dec 2014 08:17:33 -0800
Subject: net: Add functions for handling padding frame and adding to length
This patch adds two new helper functions skb_put_padto and eth_skb_pad.
These functions deviate from the standard skb_pad or skb_padto in that they
will also update the length and tail pointers so that they reflect the
padding added to the frame.
The eth_skb_pad helper is meant to be used with Ethernet devices to update
either Rx or Tx frames so that they report the correct size. The
skb_put_padto helper is meant to be used primarily in the transmit path for
network devices that need frames to be padded up to some minimum size and
don't wish to simply update the length somewhere external to the frame.
The motivation behind this is that there are a number of implementations
throughout the network device drivers that are all doing the same thing,
but each a little bit differently and as a result several implementations
contain bugs such as updating the length without updating the tail offset
and other similar issues.
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/etherdevice.h | 12 ++++++++++++
include/linux/skbuff.h | 24 +++++++++++++++++++++++-
2 files changed, 35 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 733980fce8e3..41c891d05f04 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -392,4 +392,16 @@ static inline unsigned long compare_ether_header(const void *a, const void *b)
#endif
}
+/**
+ * eth_skb_pad - Pad buffer to mininum number of octets for Ethernet frame
+ * @skb: Buffer to pad
+ *
+ * An Ethernet frame should have a minimum size of 60 bytes. This function
+ * takes short frames and pads them with zeros up to the 60 byte limit.
+ */
+static inline int eth_skb_pad(struct sk_buff *skb)
+{
+ return skb_put_padto(skb, ETH_ZLEN);
+}
+
#endif /* _LINUX_ETHERDEVICE_H */
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 7691ad5b4771..d1e2575000b9 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2461,7 +2461,6 @@ static inline int skb_cow_head(struct sk_buff *skb, unsigned int headroom)
* is untouched. Otherwise it is extended. Returns zero on
* success. The skb is freed on error.
*/
-
static inline int skb_padto(struct sk_buff *skb, unsigned int len)
{
unsigned int size = skb->len;
@@ -2470,6 +2469,29 @@ static inline int skb_padto(struct sk_buff *skb, unsigned int len)
return skb_pad(skb, len - size);
}
+/**
+ * skb_put_padto - increase size and pad an skbuff up to a minimal size
+ * @skb: buffer to pad
+ * @len: minimal length
+ *
+ * Pads up a buffer to ensure the trailing bytes exist and are
+ * blanked. If the buffer already contains sufficient data it
+ * is untouched. Otherwise it is extended. Returns zero on
+ * success. The skb is freed on error.
+ */
+static inline int skb_put_padto(struct sk_buff *skb, unsigned int len)
+{
+ unsigned int size = skb->len;
+
+ if (unlikely(size < len)) {
+ len -= size;
+ if (skb_pad(skb, len))
+ return -ENOMEM;
+ __skb_put(skb, len);
+ }
+ return 0;
+}
+
static inline int skb_add_data(struct sk_buff *skb,
char __user *from, int copy)
{
--
cgit v1.2.1
From 892311f66f2411b813ca631009356891a0c2b0a1 Mon Sep 17 00:00:00 2001
From: Eyal Perry <eyalpe@mellanox.com>
Date: Tue, 2 Dec 2014 18:12:10 +0200
Subject: ethtool: Support for configurable RSS hash function
This patch extends the set/get_rxfh ethtool-options for getting or
setting the RSS hash function.
It modifies drivers implementation of set/get_rxfh accordingly.
This change also delegates the responsibility of checking whether a
modification to a certain RX flow hash parameter is supported to the
driver implementation of set_rxfh.
User-kernel API is done through the new hfunc bitmask field in the
ethtool_rxfh struct. A bit set in the hfunc field is corresponding to an
index in the new string-set ETH_SS_RSS_HASH_FUNCS.
Got approval from most of the relevant driver maintainers that their
driver is using Toeplitz, and for the few that didn't answered, also
assumed it is Toeplitz.
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Cc: Prashant Sreedharan <prashant@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: Hariprasad S <hariprasad@chelsio.com>
Cc: Sathya Perla <sathya.perla@emulex.com>
Cc: Subbu Seetharaman <subbu.seetharaman@emulex.com>
Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
Cc: Don Skidmore <donald.c.skidmore@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Cc: Matthew Vick <matthew.vick@intel.com>
Cc: John Ronciak <john.ronciak@intel.com>
Cc: Mitch Williams <mitch.a.williams@intel.com>
Cc: Amir Vadai <amirv@mellanox.com>
Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
Cc: Shradha Shah <sshah@solarflare.com>
Cc: Shreyas Bhatewara <sbhatewara@vmware.com>
Cc: "VMware, Inc." <pv-drivers@vmware.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/ethtool.h | 42 ++++++++++++++++++++++++++++++------------
include/uapi/linux/ethtool.h | 10 ++++++++--
2 files changed, 38 insertions(+), 14 deletions(-)
(limited to 'include')
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index c1a2d60dfb82..653dc9c4ebac 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -59,6 +59,26 @@ enum ethtool_phys_id_state {
ETHTOOL_ID_OFF
};
+enum {
+ ETH_RSS_HASH_TOP_BIT, /* Configurable RSS hash function - Toeplitz */
+ ETH_RSS_HASH_XOR_BIT, /* Configurable RSS hash function - Xor */
+
+ /*
+ * Add your fresh new hash function bits above and remember to update
+ * rss_hash_func_strings[] in ethtool.c
+ */
+ ETH_RSS_HASH_FUNCS_COUNT
+};
+
+#define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit))
+#define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT)
+
+#define ETH_RSS_HASH_TOP __ETH_RSS_HASH(TOP)
+#define ETH_RSS_HASH_XOR __ETH_RSS_HASH(XOR)
+
+#define ETH_RSS_HASH_UNKNOWN 0
+#define ETH_RSS_HASH_NO_CHANGE 0
+
struct net_device;
/* Some generic methods drivers may use in their ethtool_ops */
@@ -158,17 +178,14 @@ static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
* Returns zero if not supported for this specific device.
* @get_rxfh_indir_size: Get the size of the RX flow hash indirection table.
* Returns zero if not supported for this specific device.
- * @get_rxfh: Get the contents of the RX flow hash indirection table and hash
- * key.
- * Will only be called if one or both of @get_rxfh_indir_size and
- * @get_rxfh_key_size are implemented and return non-zero.
- * Returns a negative error code or zero.
- * @set_rxfh: Set the contents of the RX flow hash indirection table and/or
- * hash key. In case only the indirection table or hash key is to be
- * changed, the other argument will be %NULL.
- * Will only be called if one or both of @get_rxfh_indir_size and
- * @get_rxfh_key_size are implemented and return non-zero.
+ * @get_rxfh: Get the contents of the RX flow hash indirection table, hash key
+ * and/or hash function.
* Returns a negative error code or zero.
+ * @set_rxfh: Set the contents of the RX flow hash indirection table, hash
+ * key, and/or hash function. Arguments which are set to %NULL or zero
+ * will remain unchanged.
+ * Returns a negative error code or zero. An error code must be returned
+ * if at least one unsupported change was requested.
* @get_channels: Get number of channels.
* @set_channels: Set number of channels. Returns a negative error code or
* zero.
@@ -241,9 +258,10 @@ struct ethtool_ops {
int (*reset)(struct net_device *, u32 *);
u32 (*get_rxfh_key_size)(struct net_device *);
u32 (*get_rxfh_indir_size)(struct net_device *);
- int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key);
+ int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key,
+ u8 *hfunc);
int (*set_rxfh)(struct net_device *, const u32 *indir,
- const u8 *key);
+ const u8 *key, const u8 hfunc);
void (*get_channels)(struct net_device *, struct ethtool_channels *);
int (*set_channels)(struct net_device *, struct ethtool_channels *);
int (*get_dump_flag)(struct net_device *, struct ethtool_dump *);
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index eb2095b42fbb..5f66d9c2889d 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -534,6 +534,7 @@ struct ethtool_pauseparam {
* @ETH_SS_NTUPLE_FILTERS: Previously used with %ETHTOOL_GRXNTUPLE;
* now deprecated
* @ETH_SS_FEATURES: Device feature names
+ * @ETH_SS_RSS_HASH_FUNCS: RSS hush function names
*/
enum ethtool_stringset {
ETH_SS_TEST = 0,
@@ -541,6 +542,7 @@ enum ethtool_stringset {
ETH_SS_PRIV_FLAGS,
ETH_SS_NTUPLE_FILTERS,
ETH_SS_FEATURES,
+ ETH_SS_RSS_HASH_FUNCS,
};
/**
@@ -884,6 +886,8 @@ struct ethtool_rxfh_indir {
* @key_size: On entry, the array size of the user buffer for the hash key,
* which may be zero. On return from %ETHTOOL_GRSSH, the size of the
* hardware hash key.
+ * @hfunc: Defines the current RSS hash function used by HW (or to be set to).
+ * Valid values are one of the %ETH_RSS_HASH_*.
* @rsvd: Reserved for future extensions.
* @rss_config: RX ring/queue index for each hash value i.e., indirection table
* of @indir_size __u32 elements, followed by hash key of @key_size
@@ -893,14 +897,16 @@ struct ethtool_rxfh_indir {
* size should be returned. For %ETHTOOL_SRSSH, an @indir_size of
* %ETH_RXFH_INDIR_NO_CHANGE means that indir table setting is not requested
* and a @indir_size of zero means the indir table should be reset to default
- * values.
+ * values. An hfunc of zero means that hash function setting is not requested.
*/
struct ethtool_rxfh {
__u32 cmd;
__u32 rss_context;
__u32 indir_size;
__u32 key_size;
- __u32 rsvd[2];
+ __u8 hfunc;
+ __u8 rsvd8[3];
+ __u32 rsvd32;
__u32 rss_config[0];
};
#define ETH_RXFH_INDIR_NO_CHANGE 0xffffffff
--
cgit v1.2.1
From a5a519b2710be43fce3cf9ce7bd8de8db3f2a9de Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@redhat.com>
Date: Tue, 2 Dec 2014 10:58:21 -0800
Subject: fib_trie: Fix /proc/net/fib_trie when CONFIG_IP_MULTIPLE_TABLES is
not defined
In recent testing I had disabled CONFIG_IP_MULTIPLE_TABLES and as a result
when I ran "cat /proc/net/fib_trie" the main trie was displayed multiple
times. I found that the problem line of code was in the function
fib_trie_seq_next. Specifically the line below caused the indexes to go in
the opposite direction of our traversal:
h = tb->tb_id & (FIB_TABLE_HASHSZ - 1);
This issue was that the RT tables are defined such that RT_TABLE_LOCAL is ID
255, while it is located at TABLE_LOCAL_INDEX of 0, and RT_TABLE_MAIN is 254
with a TABLE_MAIN_INDEX of 1. This means that the above line will return 1
for the local table and 0 for main. The result is that fib_trie_seq_next
will return NULL at the end of the local table, fib_trie_seq_start will
return the start of the main table, and then fib_trie_seq_next will loop on
main forever as h will always return 0.
The fix for this is to reverse the ordering of the two tables. It has the
advantage of making it so that the tables now print in the same order
regardless of if multiple tables are enabled or not. In order to make the
definition consistent with the multiple tables case I simply masked the to
RT_TABLE_XXX values by (FIB_TABLE_HASHSZ - 1). This way the two table
layouts should always stay consistent.
Fixes: 93456b6 ("[IPV4]: Unify access to the routing tables")
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/ip_fib.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index dc9d2a27c315..09a819ee2151 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -201,8 +201,8 @@ void fib_free_table(struct fib_table *tb);
#ifndef CONFIG_IP_MULTIPLE_TABLES
-#define TABLE_LOCAL_INDEX 0
-#define TABLE_MAIN_INDEX 1
+#define TABLE_LOCAL_INDEX (RT_TABLE_LOCAL & (FIB_TABLE_HASHSZ - 1))
+#define TABLE_MAIN_INDEX (RT_TABLE_MAIN & (FIB_TABLE_HASHSZ - 1))
static inline struct fib_table *fib_get_table(struct net *net, u32 id)
{
--
cgit v1.2.1
From af6c9f1657ca6d2ef2b2c0e31ad17c6fbf773baf Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 19 Nov 2014 18:11:00 -0800
Subject: thermal: provide an UAPI header file
include/linux/thermal.h contains definitions for the Thermal generic
netlink family, but none of the valuable information relevant to
user-space such as the Genl family name, multicast group, version or
command set and data types is exported to user-space.
Export all the relevant generic netlink information to user-space to
make this genl family usable by user-space, and while at it, export
THERMAL_NAME_LENGTH since it limits name length for thermal_hwmon
devices.
Kbuild and MAINTAINERS are also updated accordingly to reflect this new
file: include/uapi/linux/thermal.h.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
include/linux/thermal.h | 31 +------------------------------
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/thermal.h | 35 +++++++++++++++++++++++++++++++++++
3 files changed, 37 insertions(+), 30 deletions(-)
create mode 100644 include/uapi/linux/thermal.h
(limited to 'include')
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index ef90838b36a0..70f87406bed9 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -29,10 +29,10 @@
#include <linux/idr.h>
#include <linux/device.h>
#include <linux/workqueue.h>
+#include <uapi/linux/thermal.h>
#define THERMAL_TRIPS_NONE -1
#define THERMAL_MAX_TRIPS 12
-#define THERMAL_NAME_LENGTH 20
/* invalid cooling state */
#define THERMAL_CSTATE_INVALID -1UL
@@ -49,11 +49,6 @@
#define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off))
#define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732)
-/* Adding event notification support elements */
-#define THERMAL_GENL_FAMILY_NAME "thermal_event"
-#define THERMAL_GENL_VERSION 0x01
-#define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_grp"
-
/* Default Thermal Governor */
#if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE)
#define DEFAULT_THERMAL_GOVERNOR "step_wise"
@@ -86,30 +81,6 @@ enum thermal_trend {
THERMAL_TREND_DROP_FULL, /* apply lowest cooling action */
};
-/* Events supported by Thermal Netlink */
-enum events {
- THERMAL_AUX0,
- THERMAL_AUX1,
- THERMAL_CRITICAL,
- THERMAL_DEV_FAULT,
-};
-
-/* attributes of thermal_genl_family */
-enum {
- THERMAL_GENL_ATTR_UNSPEC,
- THERMAL_GENL_ATTR_EVENT,
- __THERMAL_GENL_ATTR_MAX,
-};
-#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
-
-/* commands supported by the thermal_genl_family */
-enum {
- THERMAL_GENL_CMD_UNSPEC,
- THERMAL_GENL_CMD_EVENT,
- __THERMAL_GENL_CMD_MAX,
-};
-#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
-
struct thermal_zone_device_ops {
int (*bind) (struct thermal_zone_device *,
struct thermal_cooling_device *);
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 4c94f31a8c99..a1943e2d1264 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -383,6 +383,7 @@ header-y += tcp.h
header-y += tcp_metrics.h
header-y += telephony.h
header-y += termios.h
+header-y += thermal.h
header-y += time.h
header-y += times.h
header-y += timex.h
diff --git a/include/uapi/linux/thermal.h b/include/uapi/linux/thermal.h
new file mode 100644
index 000000000000..ac5535855982
--- /dev/null
+++ b/include/uapi/linux/thermal.h
@@ -0,0 +1,35 @@
+#ifndef _UAPI_LINUX_THERMAL_H
+#define _UAPI_LINUX_THERMAL_H
+
+#define THERMAL_NAME_LENGTH 20
+
+/* Adding event notification support elements */
+#define THERMAL_GENL_FAMILY_NAME "thermal_event"
+#define THERMAL_GENL_VERSION 0x01
+#define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_grp"
+
+/* Events supported by Thermal Netlink */
+enum events {
+ THERMAL_AUX0,
+ THERMAL_AUX1,
+ THERMAL_CRITICAL,
+ THERMAL_DEV_FAULT,
+};
+
+/* attributes of thermal_genl_family */
+enum {
+ THERMAL_GENL_ATTR_UNSPEC,
+ THERMAL_GENL_ATTR_EVENT,
+ __THERMAL_GENL_ATTR_MAX,
+};
+#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
+
+/* commands supported by the thermal_genl_family */
+enum {
+ THERMAL_GENL_CMD_UNSPEC,
+ THERMAL_GENL_CMD_EVENT,
+ __THERMAL_GENL_CMD_MAX,
+};
+#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
+
+#endif /* _UAPI_LINUX_THERMAL_H */
--
cgit v1.2.1
From 829b030e58f8349a63909c0fff2fa1913d79314c Mon Sep 17 00:00:00 2001
From: Sean Paul <seanpaul@chromium.org>
Date: Tue, 2 Dec 2014 17:39:12 -0800
Subject: backlight: lp855x: Add supply regulator to lp855x
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This patch adds a supply regulator to the lp855x platform data to facilitate
powering on/off the 3V rail attached to the controller.
Cc: Stéphane Marchesin <marcheu@chromium.org>
Cc: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Milo Kim <milo.kim@ti.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
include/linux/platform_data/lp855x.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/platform_data/lp855x.h b/include/linux/platform_data/lp855x.h
index 1b2ba24e4e03..9c7fd1efe495 100644
--- a/include/linux/platform_data/lp855x.h
+++ b/include/linux/platform_data/lp855x.h
@@ -136,6 +136,7 @@ struct lp855x_rom_data {
Only valid when mode is PWM_BASED.
* @size_program : total size of lp855x_rom_data
* @rom_data : list of new eeprom/eprom registers
+ * @supply : regulator that supplies 3V input
*/
struct lp855x_platform_data {
const char *name;
@@ -144,6 +145,7 @@ struct lp855x_platform_data {
unsigned int period_ns;
int size_program;
struct lp855x_rom_data *rom_data;
+ struct regulator *supply;
};
#endif
--
cgit v1.2.1
From d4024af56f7c6cdb7e721994204fb07b2cda8be9 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 27 Nov 2014 21:19:02 +0200
Subject: virtio: add low-level APIs for feature bits
Add low level APIs to test/set/clear feature bits.
For use by transports, to make it easier to
write code independent of feature bit array format.
Note: APIs is prefixed with __ and has _bit suffix
to stress its low level nature. It's for use by transports only:
drivers should use virtio_has_feature and never need to set/clear
features.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/linux/virtio_config.h | 53 ++++++++++++++++++++++++++++++++++++++++---
1 file changed, 50 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 7f4ef66873ef..d8e28a2a5738 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -77,11 +77,47 @@ void virtio_check_driver_offered_feature(const struct virtio_device *vdev,
unsigned int fbit);
/**
- * virtio_has_feature - helper to determine if this device has this feature.
+ * __virtio_test_bit - helper to test feature bits. For use by transports.
+ * Devices should normally use virtio_has_feature,
+ * which includes more checks.
* @vdev: the device
* @fbit: the feature bit
*/
-static inline bool virtio_has_feature(const struct virtio_device *vdev,
+static inline bool __virtio_test_bit(const struct virtio_device *vdev,
+ unsigned int fbit)
+{
+ /* Did you forget to fix assumptions on max features? */
+ if (__builtin_constant_p(fbit))
+ BUILD_BUG_ON(fbit >= 32);
+ else
+ BUG_ON(fbit >= 32);
+
+ return test_bit(fbit, vdev->features);
+}
+
+/**
+ * __virtio_set_bit - helper to set feature bits. For use by transports.
+ * @vdev: the device
+ * @fbit: the feature bit
+ */
+static inline void __virtio_set_bit(struct virtio_device *vdev,
+ unsigned int fbit)
+{
+ /* Did you forget to fix assumptions on max features? */
+ if (__builtin_constant_p(fbit))
+ BUILD_BUG_ON(fbit >= 32);
+ else
+ BUG_ON(fbit >= 32);
+
+ set_bit(fbit, vdev->features);
+}
+
+/**
+ * __virtio_clear_bit - helper to clear feature bits. For use by transports.
+ * @vdev: the device
+ * @fbit: the feature bit
+ */
+static inline void __virtio_clear_bit(struct virtio_device *vdev,
unsigned int fbit)
{
/* Did you forget to fix assumptions on max features? */
@@ -90,10 +126,21 @@ static inline bool virtio_has_feature(const struct virtio_device *vdev,
else
BUG_ON(fbit >= 32);
+ clear_bit(fbit, vdev->features);
+}
+
+/**
+ * virtio_has_feature - helper to determine if this device has this feature.
+ * @vdev: the device
+ * @fbit: the feature bit
+ */
+static inline bool virtio_has_feature(const struct virtio_device *vdev,
+ unsigned int fbit)
+{
if (fbit < VIRTIO_TRANSPORT_F_START)
virtio_check_driver_offered_feature(vdev, fbit);
- return test_bit(fbit, vdev->features);
+ return __virtio_test_bit(vdev, fbit);
}
static inline
--
cgit v1.2.1
From e16e12be34648777606a2c03a3526409b38f0e63 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 7 Oct 2014 16:39:42 +0200
Subject: virtio: use u32, not bitmap for features
It seemed like a good idea to use bitmap for features
in struct virtio_device, but it's actually a pain,
and seems to become even more painful when we get more
than 32 feature bits. Just change it to a u32 for now.
Based on patch by Rusty.
Suggested-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/linux/virtio.h | 3 +--
include/linux/virtio_config.h | 6 +++---
2 files changed, 4 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 65261a7244fc..7828a7f47c2c 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -101,8 +101,7 @@ struct virtio_device {
const struct virtio_config_ops *config;
const struct vringh_config_ops *vringh_config;
struct list_head vqs;
- /* Note that this is a Linux set_bit-style bitmap. */
- unsigned long features[1];
+ u32 features;
void *priv;
};
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index d8e28a2a5738..ffc2ae04879c 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -92,7 +92,7 @@ static inline bool __virtio_test_bit(const struct virtio_device *vdev,
else
BUG_ON(fbit >= 32);
- return test_bit(fbit, vdev->features);
+ return vdev->features & BIT(fbit);
}
/**
@@ -109,7 +109,7 @@ static inline void __virtio_set_bit(struct virtio_device *vdev,
else
BUG_ON(fbit >= 32);
- set_bit(fbit, vdev->features);
+ vdev->features |= BIT(fbit);
}
/**
@@ -126,7 +126,7 @@ static inline void __virtio_clear_bit(struct virtio_device *vdev,
else
BUG_ON(fbit >= 32);
- clear_bit(fbit, vdev->features);
+ vdev->features &= ~BIT(fbit);
}
/**
--
cgit v1.2.1
From d025477368792b272802146a86e41f81a54d8a19 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 7 Oct 2014 16:39:43 +0200
Subject: virtio: add support for 64 bit features.
Change u32 to u64, and use BIT_ULL and 1ULL everywhere.
Note: transports are unchanged, and only set low 32 bit.
This guarantees that no transport sets e.g. VERSION_1
by mistake without proper support.
Based on patch by Rusty.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/linux/virtio.h | 2 +-
include/linux/virtio_config.h | 20 ++++++++++----------
2 files changed, 11 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 7828a7f47c2c..149284e5196d 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -101,7 +101,7 @@ struct virtio_device {
const struct virtio_config_ops *config;
const struct vringh_config_ops *vringh_config;
struct list_head vqs;
- u32 features;
+ u64 features;
void *priv;
};
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index ffc2ae04879c..f51788439574 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -66,7 +66,7 @@ struct virtio_config_ops {
vq_callback_t *callbacks[],
const char *names[]);
void (*del_vqs)(struct virtio_device *);
- u32 (*get_features)(struct virtio_device *vdev);
+ u64 (*get_features)(struct virtio_device *vdev);
void (*finalize_features)(struct virtio_device *vdev);
const char *(*bus_name)(struct virtio_device *vdev);
int (*set_vq_affinity)(struct virtqueue *vq, int cpu);
@@ -88,11 +88,11 @@ static inline bool __virtio_test_bit(const struct virtio_device *vdev,
{
/* Did you forget to fix assumptions on max features? */
if (__builtin_constant_p(fbit))
- BUILD_BUG_ON(fbit >= 32);
+ BUILD_BUG_ON(fbit >= 64);
else
- BUG_ON(fbit >= 32);
+ BUG_ON(fbit >= 64);
- return vdev->features & BIT(fbit);
+ return vdev->features & BIT_ULL(fbit);
}
/**
@@ -105,11 +105,11 @@ static inline void __virtio_set_bit(struct virtio_device *vdev,
{
/* Did you forget to fix assumptions on max features? */
if (__builtin_constant_p(fbit))
- BUILD_BUG_ON(fbit >= 32);
+ BUILD_BUG_ON(fbit >= 64);
else
- BUG_ON(fbit >= 32);
+ BUG_ON(fbit >= 64);
- vdev->features |= BIT(fbit);
+ vdev->features |= BIT_ULL(fbit);
}
/**
@@ -122,11 +122,11 @@ static inline void __virtio_clear_bit(struct virtio_device *vdev,
{
/* Did you forget to fix assumptions on max features? */
if (__builtin_constant_p(fbit))
- BUILD_BUG_ON(fbit >= 32);
+ BUILD_BUG_ON(fbit >= 64);
else
- BUG_ON(fbit >= 32);
+ BUG_ON(fbit >= 64);
- vdev->features &= ~BIT(fbit);
+ vdev->features &= ~BIT_ULL(fbit);
}
/**
--
cgit v1.2.1
From 4ec22faeb2a165b6ce7009f91309046010b3f282 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 22 Oct 2014 15:49:34 +0300
Subject: virtio: add virtio 1.0 feature bit
Based on original patches by Rusty Russell, Thomas Huth
and Cornelia Huck.
Note: at this time, we do not negotiate this feature bit
in core, drivers have to declare VERSION_1 support explicitly.
For this reason we treat this bit as a device bit
and not as a transport bit for now.
After all drivers are converted, we will be able to
move VERSION_1 to core and drop it from all drivers.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/uapi/linux/virtio_config.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
index 3ce768c6910d..80e7381e3f1f 100644
--- a/include/uapi/linux/virtio_config.h
+++ b/include/uapi/linux/virtio_config.h
@@ -54,4 +54,7 @@
/* Can the device handle any descriptor layout? */
#define VIRTIO_F_ANY_LAYOUT 27
+/* v1.0 compliant. */
+#define VIRTIO_F_VERSION_1 32
+
#endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */
--
cgit v1.2.1
From eef960a04354d13426c43a4e3750a5e2b383040c Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 22 Oct 2014 15:35:56 +0300
Subject: virtio: memory access APIs
virtio 1.0 makes all memory structures LE, so
we need APIs to conditionally do a byteswap on BE
architectures.
To make it easier to check code statically,
add virtio specific types for multi-byte integers
in memory.
Add low level wrappers that do a byteswap conditionally, these will be
useful e.g. for vhost. Add high level wrappers that
query device endian-ness and act accordingly.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/linux/virtio_byteorder.h | 59 +++++++++++++++++++++++++++++++++++++++
include/linux/virtio_config.h | 32 +++++++++++++++++++++
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/virtio_ring.h | 45 ++++++++++++++---------------
include/uapi/linux/virtio_types.h | 46 ++++++++++++++++++++++++++++++
5 files changed, 161 insertions(+), 22 deletions(-)
create mode 100644 include/linux/virtio_byteorder.h
create mode 100644 include/uapi/linux/virtio_types.h
(limited to 'include')
diff --git a/include/linux/virtio_byteorder.h b/include/linux/virtio_byteorder.h
new file mode 100644
index 000000000000..51865d05b267
--- /dev/null
+++ b/include/linux/virtio_byteorder.h
@@ -0,0 +1,59 @@
+#ifndef _LINUX_VIRTIO_BYTEORDER_H
+#define _LINUX_VIRTIO_BYTEORDER_H
+#include <linux/types.h>
+#include <uapi/linux/virtio_types.h>
+
+/*
+ * Low-level memory accessors for handling virtio in modern little endian and in
+ * compatibility native endian format.
+ */
+
+static inline u16 __virtio16_to_cpu(bool little_endian, __virtio16 val)
+{
+ if (little_endian)
+ return le16_to_cpu((__force __le16)val);
+ else
+ return (__force u16)val;
+}
+
+static inline __virtio16 __cpu_to_virtio16(bool little_endian, u16 val)
+{
+ if (little_endian)
+ return (__force __virtio16)cpu_to_le16(val);
+ else
+ return (__force __virtio16)val;
+}
+
+static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val)
+{
+ if (little_endian)
+ return le32_to_cpu((__force __le32)val);
+ else
+ return (__force u32)val;
+}
+
+static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val)
+{
+ if (little_endian)
+ return (__force __virtio32)cpu_to_le32(val);
+ else
+ return (__force __virtio32)val;
+}
+
+static inline u64 __virtio64_to_cpu(bool little_endian, __virtio64 val)
+{
+ if (little_endian)
+ return le64_to_cpu((__force __le64)val);
+ else
+ return (__force u64)val;
+}
+
+static inline __virtio64 __cpu_to_virtio64(bool little_endian, u64 val)
+{
+ if (little_endian)
+ return (__force __virtio64)cpu_to_le64(val);
+ else
+ return (__force __virtio64)val;
+}
+
+#endif /* _LINUX_VIRTIO_BYTEORDER */
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index f51788439574..02f0acb549d6 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -4,6 +4,7 @@
#include <linux/err.h>
#include <linux/bug.h>
#include <linux/virtio.h>
+#include <linux/virtio_byteorder.h>
#include <uapi/linux/virtio_config.h>
/**
@@ -199,6 +200,37 @@ int virtqueue_set_affinity(struct virtqueue *vq, int cpu)
return 0;
}
+/* Memory accessors */
+static inline u16 virtio16_to_cpu(struct virtio_device *vdev, __virtio16 val)
+{
+ return __virtio16_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+}
+
+static inline __virtio16 cpu_to_virtio16(struct virtio_device *vdev, u16 val)
+{
+ return __cpu_to_virtio16(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+}
+
+static inline u32 virtio32_to_cpu(struct virtio_device *vdev, __virtio32 val)
+{
+ return __virtio32_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+}
+
+static inline __virtio32 cpu_to_virtio32(struct virtio_device *vdev, u32 val)
+{
+ return __cpu_to_virtio32(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+}
+
+static inline u64 virtio64_to_cpu(struct virtio_device *vdev, __virtio64 val)
+{
+ return __virtio64_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+}
+
+static inline __virtio64 cpu_to_virtio64(struct virtio_device *vdev, u64 val)
+{
+ return __cpu_to_virtio64(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val);
+}
+
/* Config space accessors. */
#define virtio_cread(vdev, structname, member, ptr) \
do { \
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 8523f9bb72f2..615f96a6022a 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -423,6 +423,7 @@ header-y += virtio_blk.h
header-y += virtio_config.h
header-y += virtio_console.h
header-y += virtio_ids.h
+header-y += virtio_types.h
header-y += virtio_net.h
header-y += virtio_pci.h
header-y += virtio_ring.h
diff --git a/include/uapi/linux/virtio_ring.h b/include/uapi/linux/virtio_ring.h
index a99f9b7caa67..61c818a7fe70 100644
--- a/include/uapi/linux/virtio_ring.h
+++ b/include/uapi/linux/virtio_ring.h
@@ -32,6 +32,7 @@
*
* Copyright Rusty Russell IBM Corporation 2007. */
#include <linux/types.h>
+#include <linux/virtio_types.h>
/* This marks a buffer as continuing via the next field. */
#define VRING_DESC_F_NEXT 1
@@ -61,32 +62,32 @@
/* Virtio ring descriptors: 16 bytes. These can chain together via "next". */
struct vring_desc {
/* Address (guest-physical). */
- __u64 addr;
+ __virtio64 addr;
/* Length. */
- __u32 len;
+ __virtio32 len;
/* The flags as indicated above. */
- __u16 flags;
+ __virtio16 flags;
/* We chain unused descriptors via this, too */
- __u16 next;
+ __virtio16 next;
};
struct vring_avail {
- __u16 flags;
- __u16 idx;
- __u16 ring[];
+ __virtio16 flags;
+ __virtio16 idx;
+ __virtio16 ring[];
};
/* u32 is used here for ids for padding reasons. */
struct vring_used_elem {
/* Index of start of used descriptor chain. */
- __u32 id;
+ __virtio32 id;
/* Total length of the descriptor chain which was used (written to) */
- __u32 len;
+ __virtio32 len;
};
struct vring_used {
- __u16 flags;
- __u16 idx;
+ __virtio16 flags;
+ __virtio16 idx;
struct vring_used_elem ring[];
};
@@ -109,25 +110,25 @@ struct vring {
* struct vring_desc desc[num];
*
* // A ring of available descriptor heads with free-running index.
- * __u16 avail_flags;
- * __u16 avail_idx;
- * __u16 available[num];
- * __u16 used_event_idx;
+ * __virtio16 avail_flags;
+ * __virtio16 avail_idx;
+ * __virtio16 available[num];
+ * __virtio16 used_event_idx;
*
* // Padding to the next align boundary.
* char pad[];
*
* // A ring of used descriptor heads with free-running index.
- * __u16 used_flags;
- * __u16 used_idx;
+ * __virtio16 used_flags;
+ * __virtio16 used_idx;
* struct vring_used_elem used[num];
- * __u16 avail_event_idx;
+ * __virtio16 avail_event_idx;
* };
*/
/* We publish the used event index at the end of the available ring, and vice
* versa. They are at the end for backwards compatibility. */
#define vring_used_event(vr) ((vr)->avail->ring[(vr)->num])
-#define vring_avail_event(vr) (*(__u16 *)&(vr)->used->ring[(vr)->num])
+#define vring_avail_event(vr) (*(__virtio16 *)&(vr)->used->ring[(vr)->num])
static inline void vring_init(struct vring *vr, unsigned int num, void *p,
unsigned long align)
@@ -135,15 +136,15 @@ static inline void vring_init(struct vring *vr, unsigned int num, void *p,
vr->num = num;
vr->desc = p;
vr->avail = p + num*sizeof(struct vring_desc);
- vr->used = (void *)(((unsigned long)&vr->avail->ring[num] + sizeof(__u16)
+ vr->used = (void *)(((unsigned long)&vr->avail->ring[num] + sizeof(__virtio16)
+ align-1) & ~(align - 1));
}
static inline unsigned vring_size(unsigned int num, unsigned long align)
{
- return ((sizeof(struct vring_desc) * num + sizeof(__u16) * (3 + num)
+ return ((sizeof(struct vring_desc) * num + sizeof(__virtio16) * (3 + num)
+ align - 1) & ~(align - 1))
- + sizeof(__u16) * 3 + sizeof(struct vring_used_elem) * num;
+ + sizeof(__virtio16) * 3 + sizeof(struct vring_used_elem) * num;
}
/* The following is used with USED_EVENT_IDX and AVAIL_EVENT_IDX */
diff --git a/include/uapi/linux/virtio_types.h b/include/uapi/linux/virtio_types.h
new file mode 100644
index 000000000000..e845e8c4cbee
--- /dev/null
+++ b/include/uapi/linux/virtio_types.h
@@ -0,0 +1,46 @@
+#ifndef _UAPI_LINUX_VIRTIO_TYPES_H
+#define _UAPI_LINUX_VIRTIO_TYPES_H
+/* Type definitions for virtio implementations.
+ *
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Copyright (C) 2014 Red Hat, Inc.
+ * Author: Michael S. Tsirkin <mst@redhat.com>
+ */
+#include <linux/types.h>
+
+/*
+ * __virtio{16,32,64} have the following meaning:
+ * - __u{16,32,64} for virtio devices in legacy mode, accessed in native endian
+ * - __le{16,32,64} for standard-compliant virtio devices
+ */
+
+typedef __u16 __bitwise__ __virtio16;
+typedef __u32 __bitwise__ __virtio32;
+typedef __u64 __bitwise__ __virtio64;
+
+#endif /* _UAPI_LINUX_VIRTIO_TYPES_H */
--
cgit v1.2.1
From 92e6d7438ee631aac85258ee3d4de8c860d8c32f Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 22 Oct 2014 16:59:01 +0300
Subject: virtio_config: endian conversion for v1.0
We (ab)use virtio conversion functions for device-specific
config space accesses.
Based on original patches by Cornelia and Rusty.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.com>
---
include/linux/virtio_config.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 02f0acb549d6..1fa5faa26440 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -318,12 +318,13 @@ static inline u16 virtio_cread16(struct virtio_device *vdev,
{
u16 ret;
vdev->config->get(vdev, offset, &ret, sizeof(ret));
- return ret;
+ return virtio16_to_cpu(vdev, (__force __virtio16)ret);
}
static inline void virtio_cwrite16(struct virtio_device *vdev,
unsigned int offset, u16 val)
{
+ val = (__force u16)cpu_to_virtio16(vdev, val);
vdev->config->set(vdev, offset, &val, sizeof(val));
}
@@ -332,12 +333,13 @@ static inline u32 virtio_cread32(struct virtio_device *vdev,
{
u32 ret;
vdev->config->get(vdev, offset, &ret, sizeof(ret));
- return ret;
+ return virtio32_to_cpu(vdev, (__force __virtio32)ret);
}
static inline void virtio_cwrite32(struct virtio_device *vdev,
unsigned int offset, u32 val)
{
+ val = (__force u32)cpu_to_virtio32(vdev, val);
vdev->config->set(vdev, offset, &val, sizeof(val));
}
@@ -346,12 +348,13 @@ static inline u64 virtio_cread64(struct virtio_device *vdev,
{
u64 ret;
vdev->config->get(vdev, offset, &ret, sizeof(ret));
- return ret;
+ return virtio64_to_cpu(vdev, (__force __virtio64)ret);
}
static inline void virtio_cwrite64(struct virtio_device *vdev,
unsigned int offset, u64 val)
{
+ val = (__force u64)cpu_to_virtio64(vdev, val);
vdev->config->set(vdev, offset, &val, sizeof(val));
}
--
cgit v1.2.1
From 890626521503318d7ac92a4a3b9feba55c0131ec Mon Sep 17 00:00:00 2001
From: Cornelia Huck <cornelia.huck@de.ibm.com>
Date: Tue, 7 Oct 2014 16:39:47 +0200
Subject: virtio: allow transports to get avail/used addresses
For virtio-1, we can theoretically have a more complex virtqueue
layout with avail and used buffers not on a contiguous memory area
with the descriptor table. For now, it's fine for a transport driver
to stay with the old layout: It needs, however, a way to access
the locations of the avail/used rings so it can register them with
the host.
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/linux/virtio.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 149284e5196d..d6359a5d5d4e 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -75,6 +75,9 @@ unsigned int virtqueue_get_vring_size(struct virtqueue *vq);
bool virtqueue_is_broken(struct virtqueue *vq);
+void *virtqueue_get_avail(struct virtqueue *vq);
+void *virtqueue_get_used(struct virtqueue *vq);
+
/**
* virtio_device - representation of a device using virtio
* @index: unique position on the virtio bus
--
cgit v1.2.1
From cb3f6d9da49929797f806b4e91ec005e6fc2e9c2 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 22 Oct 2014 17:41:38 +0300
Subject: virtio: set FEATURES_OK
set FEATURES_OK as per virtio 1.0 spec
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/uapi/linux/virtio_config.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
index 80e7381e3f1f..4d05671fbaec 100644
--- a/include/uapi/linux/virtio_config.h
+++ b/include/uapi/linux/virtio_config.h
@@ -38,6 +38,8 @@
#define VIRTIO_CONFIG_S_DRIVER 2
/* Driver has used its parts of the config, and is happy */
#define VIRTIO_CONFIG_S_DRIVER_OK 4
+/* Driver has finished configuring features */
+#define VIRTIO_CONFIG_S_FEATURES_OK 8
/* We've given up on this device. */
#define VIRTIO_CONFIG_S_FAILED 0x80
--
cgit v1.2.1
From b3bb62d11950eb6ac87403cacd667f84fa9495bc Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 23 Oct 2014 18:07:47 +0300
Subject: virtio: add legacy feature table support
virtio-blk has some legacy feature bits that modern drivers
must not negotiate, but are needed for old legacy hosts
(that e.g. don't support virtio-scsi).
Allow a separate legacy feature table for such cases.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/linux/virtio.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index d6359a5d5d4e..f70411eb9d27 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -130,6 +130,8 @@ int virtio_device_restore(struct virtio_device *dev);
* @id_table: the ids serviced by this driver.
* @feature_table: an array of feature numbers supported by this driver.
* @feature_table_size: number of entries in the feature table array.
+ * @feature_table_legacy: same as feature_table but when working in legacy mode.
+ * @feature_table_size_legacy: number of entries in feature table legacy array.
* @probe: the function to call when a device is found. Returns 0 or -errno.
* @remove: the function to call when a device is removed.
* @config_changed: optional function to call when the device configuration
@@ -140,6 +142,8 @@ struct virtio_driver {
const struct virtio_device_id *id_table;
const unsigned int *feature_table;
unsigned int feature_table_size;
+ const unsigned int *feature_table_legacy;
+ unsigned int feature_table_size_legacy;
int (*probe)(struct virtio_device *dev);
void (*scan)(struct virtio_device *dev);
void (*remove)(struct virtio_device *dev);
--
cgit v1.2.1
From fdd819b21576c361bf0dcdd9522df4ccabf7aaa8 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 7 Oct 2014 16:39:48 +0200
Subject: virtio_net: v1.0 endianness
Based on patches by Rusty Russell, Cornelia Huck.
Note: more code changes are needed for 1.0 support
(due to different header size).
So we don't advertize support for 1.0 yet.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/uapi/linux/virtio_net.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
index 172a7f00780c..b5f1677b291c 100644
--- a/include/uapi/linux/virtio_net.h
+++ b/include/uapi/linux/virtio_net.h
@@ -28,6 +28,7 @@
#include <linux/types.h>
#include <linux/virtio_ids.h>
#include <linux/virtio_config.h>
+#include <linux/virtio_types.h>
#include <linux/if_ether.h>
/* The feature bitmap for virtio net */
@@ -84,17 +85,17 @@ struct virtio_net_hdr {
#define VIRTIO_NET_HDR_GSO_TCPV6 4 // GSO frame, IPv6 TCP
#define VIRTIO_NET_HDR_GSO_ECN 0x80 // TCP has ECN set
__u8 gso_type;
- __u16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
- __u16 gso_size; /* Bytes to append to hdr_len per frame */
- __u16 csum_start; /* Position to start checksumming from */
- __u16 csum_offset; /* Offset after that to place checksum */
+ __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
+ __virtio16 gso_size; /* Bytes to append to hdr_len per frame */
+ __virtio16 csum_start; /* Position to start checksumming from */
+ __virtio16 csum_offset; /* Offset after that to place checksum */
};
/* This is the version of the header to use when the MRG_RXBUF
* feature has been negotiated. */
struct virtio_net_hdr_mrg_rxbuf {
struct virtio_net_hdr hdr;
- __u16 num_buffers; /* Number of merged rx buffers */
+ __virtio16 num_buffers; /* Number of merged rx buffers */
};
/*
@@ -149,7 +150,7 @@ typedef __u8 virtio_net_ctrl_ack;
* VIRTIO_NET_F_CTRL_MAC_ADDR feature is available.
*/
struct virtio_net_ctrl_mac {
- __u32 entries;
+ __virtio32 entries;
__u8 macs[][ETH_ALEN];
} __attribute__((packed));
@@ -193,7 +194,7 @@ struct virtio_net_ctrl_mac {
* specified.
*/
struct virtio_net_ctrl_mq {
- __u16 virtqueue_pairs;
+ __virtio16 virtqueue_pairs;
};
#define VIRTIO_NET_CTRL_MQ 4
--
cgit v1.2.1
From 19c1c5a64c3b8eeb65b63abba248b880dd584589 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 7 Oct 2014 16:39:49 +0200
Subject: virtio_blk: v1.0 support
Based on patch by Cornelia Huck.
Note: for consistency, and to avoid sparse errors,
convert all fields, even those no longer in use
for virtio v1.0.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/uapi/linux/virtio_blk.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h
index 9ad67b267584..247c8ba8544a 100644
--- a/include/uapi/linux/virtio_blk.h
+++ b/include/uapi/linux/virtio_blk.h
@@ -28,6 +28,7 @@
#include <linux/types.h>
#include <linux/virtio_ids.h>
#include <linux/virtio_config.h>
+#include <linux/virtio_types.h>
/* Feature bits */
#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */
@@ -114,18 +115,18 @@ struct virtio_blk_config {
/* This is the first element of the read scatter-gather list. */
struct virtio_blk_outhdr {
/* VIRTIO_BLK_T* */
- __u32 type;
+ __virtio32 type;
/* io priority. */
- __u32 ioprio;
+ __virtio32 ioprio;
/* Sector (ie. 512 byte offset) */
- __u64 sector;
+ __virtio64 sector;
};
struct virtio_scsi_inhdr {
- __u32 errors;
- __u32 data_len;
- __u32 sense_len;
- __u32 residual;
+ __virtio32 errors;
+ __virtio32 data_len;
+ __virtio32 sense_len;
+ __virtio32 residual;
};
/* And this is the final byte of the write scatter-gather list. */
--
cgit v1.2.1
From 031f5e0338ef672e728c878129fa044e8830c31a Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 19 Nov 2014 14:44:40 +0200
Subject: tun: move internal flag defines out of uapi
TUN_ flags are internal and never exposed
to userspace. Any application using it is almost
certainly buggy.
Move them out to tun.c.
Note: we remove these completely in follow-up patches,
this code movement is split out for ease of review.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/uapi/linux/if_tun.h | 16 +++-------------
1 file changed, 3 insertions(+), 13 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index e9502dd1ee2c..277a2607d166 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -22,21 +22,11 @@
/* Read queue size */
#define TUN_READQ_SIZE 500
-
-/* TUN device flags */
-#define TUN_TUN_DEV 0x0001
-#define TUN_TAP_DEV 0x0002
+/* TUN device type flags: deprecated. Use IFF_TUN/IFF_TAP instead. */
+#define TUN_TUN_DEV IFF_TUN
+#define TUN_TAP_DEV IFF_TAP
#define TUN_TYPE_MASK 0x000f
-#define TUN_FASYNC 0x0010
-#define TUN_NOCHECKSUM 0x0020
-#define TUN_NO_PI 0x0040
-/* This flag has no real effect */
-#define TUN_ONE_QUEUE 0x0080
-#define TUN_PERSIST 0x0100
-#define TUN_VNET_HDR 0x0200
-#define TUN_TAP_MQ 0x0400
-
/* Ioctl defines */
#define TUNSETNOCSUM _IOW('T', 200, int)
#define TUNSETDEBUG _IOW('T', 201, int)
--
cgit v1.2.1
From e999d6ea2a4f313a5bba514b08f6f01b0c0072a9 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 18 Nov 2014 17:38:08 +0200
Subject: tun: add VNET_LE flag
virtio 1.0 modified virtio net header format,
making all fields little endian.
Users can tweak header format before submitting it to tun,
but this means more data copies where none were necessary.
And if the iovec is in RO memory, this means we might
need to split iovec also means we might in theory overflow
iovec max size.
This patch adds a simpler way for applications to handle this,
using new "little endian" flag in tun.
As a result, tun simply byte-swaps header fields as appropriate.
This is a NOP on LE architectures.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/uapi/linux/if_tun.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 277a2607d166..18b2403982f9 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -57,6 +57,7 @@
#define IFF_ONE_QUEUE 0x2000
#define IFF_VNET_HDR 0x4000
#define IFF_TUN_EXCL 0x8000
+#define IFF_VNET_LE 0x10000
#define IFF_MULTI_QUEUE 0x0100
#define IFF_ATTACH_QUEUE 0x0200
#define IFF_DETACH_QUEUE 0x0400
--
cgit v1.2.1
From d75dff39dfb86b0b8925f10b1f13fc353ae9f1b0 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Sun, 23 Nov 2014 17:28:57 +0200
Subject: virtio_scsi: v1.0 support
Note: for consistency, and to avoid sparse errors,
convert all fields, even those no longer in use
for virtio v1.0.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/virtio_scsi.h | 32 +++++++++++++++++---------------
1 file changed, 17 insertions(+), 15 deletions(-)
(limited to 'include')
diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h
index de429d1f4357..af448649a975 100644
--- a/include/linux/virtio_scsi.h
+++ b/include/linux/virtio_scsi.h
@@ -27,13 +27,15 @@
#ifndef _LINUX_VIRTIO_SCSI_H
#define _LINUX_VIRTIO_SCSI_H
+#include <linux/virtio_types.h>
+
#define VIRTIO_SCSI_CDB_SIZE 32
#define VIRTIO_SCSI_SENSE_SIZE 96
/* SCSI command request, followed by data-out */
struct virtio_scsi_cmd_req {
u8 lun[8]; /* Logical Unit Number */
- u64 tag; /* Command identifier */
+ __virtio64 tag; /* Command identifier */
u8 task_attr; /* Task attribute */
u8 prio; /* SAM command priority field */
u8 crn;
@@ -43,20 +45,20 @@ struct virtio_scsi_cmd_req {
/* SCSI command request, followed by protection information */
struct virtio_scsi_cmd_req_pi {
u8 lun[8]; /* Logical Unit Number */
- u64 tag; /* Command identifier */
+ __virtio64 tag; /* Command identifier */
u8 task_attr; /* Task attribute */
u8 prio; /* SAM command priority field */
u8 crn;
- u32 pi_bytesout; /* DataOUT PI Number of bytes */
- u32 pi_bytesin; /* DataIN PI Number of bytes */
+ __virtio32 pi_bytesout; /* DataOUT PI Number of bytes */
+ __virtio32 pi_bytesin; /* DataIN PI Number of bytes */
u8 cdb[VIRTIO_SCSI_CDB_SIZE];
} __packed;
/* Response, followed by sense data and data-in */
struct virtio_scsi_cmd_resp {
- u32 sense_len; /* Sense data length */
- u32 resid; /* Residual bytes in data buffer */
- u16 status_qualifier; /* Status qualifier */
+ __virtio32 sense_len; /* Sense data length */
+ __virtio32 resid; /* Residual bytes in data buffer */
+ __virtio16 status_qualifier; /* Status qualifier */
u8 status; /* Command completion status */
u8 response; /* Response values */
u8 sense[VIRTIO_SCSI_SENSE_SIZE];
@@ -64,10 +66,10 @@ struct virtio_scsi_cmd_resp {
/* Task Management Request */
struct virtio_scsi_ctrl_tmf_req {
- u32 type;
- u32 subtype;
+ __virtio32 type;
+ __virtio32 subtype;
u8 lun[8];
- u64 tag;
+ __virtio64 tag;
} __packed;
struct virtio_scsi_ctrl_tmf_resp {
@@ -76,20 +78,20 @@ struct virtio_scsi_ctrl_tmf_resp {
/* Asynchronous notification query/subscription */
struct virtio_scsi_ctrl_an_req {
- u32 type;
+ __virtio32 type;
u8 lun[8];
- u32 event_requested;
+ __virtio32 event_requested;
} __packed;
struct virtio_scsi_ctrl_an_resp {
- u32 event_actual;
+ __virtio32 event_actual;
u8 response;
} __packed;
struct virtio_scsi_event {
- u32 event;
+ __virtio32 event;
u8 lun[8];
- u32 reason;
+ __virtio32 reason;
} __packed;
struct virtio_scsi_config {
--
cgit v1.2.1
From 106d81f58a5e7f41e857b8805e9d899e87d7a874 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Sun, 23 Nov 2014 17:45:53 +0200
Subject: virtio_scsi: move to uapi
Guests need to use virtio scsi API, so export it to uapi,
nice to e.g. qemu and will help us remember this file
affects ABI.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/virtio_scsi.h | 164 ---------------------------------------
include/uapi/linux/virtio_scsi.h | 164 +++++++++++++++++++++++++++++++++++++++
2 files changed, 164 insertions(+), 164 deletions(-)
delete mode 100644 include/linux/virtio_scsi.h
create mode 100644 include/uapi/linux/virtio_scsi.h
(limited to 'include')
diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h
deleted file mode 100644
index af448649a975..000000000000
--- a/include/linux/virtio_scsi.h
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * This header is BSD licensed so anyone can use the definitions to implement
- * compatible drivers/servers.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef _LINUX_VIRTIO_SCSI_H
-#define _LINUX_VIRTIO_SCSI_H
-
-#include <linux/virtio_types.h>
-
-#define VIRTIO_SCSI_CDB_SIZE 32
-#define VIRTIO_SCSI_SENSE_SIZE 96
-
-/* SCSI command request, followed by data-out */
-struct virtio_scsi_cmd_req {
- u8 lun[8]; /* Logical Unit Number */
- __virtio64 tag; /* Command identifier */
- u8 task_attr; /* Task attribute */
- u8 prio; /* SAM command priority field */
- u8 crn;
- u8 cdb[VIRTIO_SCSI_CDB_SIZE];
-} __packed;
-
-/* SCSI command request, followed by protection information */
-struct virtio_scsi_cmd_req_pi {
- u8 lun[8]; /* Logical Unit Number */
- __virtio64 tag; /* Command identifier */
- u8 task_attr; /* Task attribute */
- u8 prio; /* SAM command priority field */
- u8 crn;
- __virtio32 pi_bytesout; /* DataOUT PI Number of bytes */
- __virtio32 pi_bytesin; /* DataIN PI Number of bytes */
- u8 cdb[VIRTIO_SCSI_CDB_SIZE];
-} __packed;
-
-/* Response, followed by sense data and data-in */
-struct virtio_scsi_cmd_resp {
- __virtio32 sense_len; /* Sense data length */
- __virtio32 resid; /* Residual bytes in data buffer */
- __virtio16 status_qualifier; /* Status qualifier */
- u8 status; /* Command completion status */
- u8 response; /* Response values */
- u8 sense[VIRTIO_SCSI_SENSE_SIZE];
-} __packed;
-
-/* Task Management Request */
-struct virtio_scsi_ctrl_tmf_req {
- __virtio32 type;
- __virtio32 subtype;
- u8 lun[8];
- __virtio64 tag;
-} __packed;
-
-struct virtio_scsi_ctrl_tmf_resp {
- u8 response;
-} __packed;
-
-/* Asynchronous notification query/subscription */
-struct virtio_scsi_ctrl_an_req {
- __virtio32 type;
- u8 lun[8];
- __virtio32 event_requested;
-} __packed;
-
-struct virtio_scsi_ctrl_an_resp {
- __virtio32 event_actual;
- u8 response;
-} __packed;
-
-struct virtio_scsi_event {
- __virtio32 event;
- u8 lun[8];
- __virtio32 reason;
-} __packed;
-
-struct virtio_scsi_config {
- u32 num_queues;
- u32 seg_max;
- u32 max_sectors;
- u32 cmd_per_lun;
- u32 event_info_size;
- u32 sense_size;
- u32 cdb_size;
- u16 max_channel;
- u16 max_target;
- u32 max_lun;
-} __packed;
-
-/* Feature Bits */
-#define VIRTIO_SCSI_F_INOUT 0
-#define VIRTIO_SCSI_F_HOTPLUG 1
-#define VIRTIO_SCSI_F_CHANGE 2
-#define VIRTIO_SCSI_F_T10_PI 3
-
-/* Response codes */
-#define VIRTIO_SCSI_S_OK 0
-#define VIRTIO_SCSI_S_OVERRUN 1
-#define VIRTIO_SCSI_S_ABORTED 2
-#define VIRTIO_SCSI_S_BAD_TARGET 3
-#define VIRTIO_SCSI_S_RESET 4
-#define VIRTIO_SCSI_S_BUSY 5
-#define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6
-#define VIRTIO_SCSI_S_TARGET_FAILURE 7
-#define VIRTIO_SCSI_S_NEXUS_FAILURE 8
-#define VIRTIO_SCSI_S_FAILURE 9
-#define VIRTIO_SCSI_S_FUNCTION_SUCCEEDED 10
-#define VIRTIO_SCSI_S_FUNCTION_REJECTED 11
-#define VIRTIO_SCSI_S_INCORRECT_LUN 12
-
-/* Controlq type codes. */
-#define VIRTIO_SCSI_T_TMF 0
-#define VIRTIO_SCSI_T_AN_QUERY 1
-#define VIRTIO_SCSI_T_AN_SUBSCRIBE 2
-
-/* Valid TMF subtypes. */
-#define VIRTIO_SCSI_T_TMF_ABORT_TASK 0
-#define VIRTIO_SCSI_T_TMF_ABORT_TASK_SET 1
-#define VIRTIO_SCSI_T_TMF_CLEAR_ACA 2
-#define VIRTIO_SCSI_T_TMF_CLEAR_TASK_SET 3
-#define VIRTIO_SCSI_T_TMF_I_T_NEXUS_RESET 4
-#define VIRTIO_SCSI_T_TMF_LOGICAL_UNIT_RESET 5
-#define VIRTIO_SCSI_T_TMF_QUERY_TASK 6
-#define VIRTIO_SCSI_T_TMF_QUERY_TASK_SET 7
-
-/* Events. */
-#define VIRTIO_SCSI_T_EVENTS_MISSED 0x80000000
-#define VIRTIO_SCSI_T_NO_EVENT 0
-#define VIRTIO_SCSI_T_TRANSPORT_RESET 1
-#define VIRTIO_SCSI_T_ASYNC_NOTIFY 2
-#define VIRTIO_SCSI_T_PARAM_CHANGE 3
-
-/* Reasons of transport reset event */
-#define VIRTIO_SCSI_EVT_RESET_HARD 0
-#define VIRTIO_SCSI_EVT_RESET_RESCAN 1
-#define VIRTIO_SCSI_EVT_RESET_REMOVED 2
-
-#define VIRTIO_SCSI_S_SIMPLE 0
-#define VIRTIO_SCSI_S_ORDERED 1
-#define VIRTIO_SCSI_S_HEAD 2
-#define VIRTIO_SCSI_S_ACA 3
-
-
-#endif /* _LINUX_VIRTIO_SCSI_H */
diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h
new file mode 100644
index 000000000000..af448649a975
--- /dev/null
+++ b/include/uapi/linux/virtio_scsi.h
@@ -0,0 +1,164 @@
+/*
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _LINUX_VIRTIO_SCSI_H
+#define _LINUX_VIRTIO_SCSI_H
+
+#include <linux/virtio_types.h>
+
+#define VIRTIO_SCSI_CDB_SIZE 32
+#define VIRTIO_SCSI_SENSE_SIZE 96
+
+/* SCSI command request, followed by data-out */
+struct virtio_scsi_cmd_req {
+ u8 lun[8]; /* Logical Unit Number */
+ __virtio64 tag; /* Command identifier */
+ u8 task_attr; /* Task attribute */
+ u8 prio; /* SAM command priority field */
+ u8 crn;
+ u8 cdb[VIRTIO_SCSI_CDB_SIZE];
+} __packed;
+
+/* SCSI command request, followed by protection information */
+struct virtio_scsi_cmd_req_pi {
+ u8 lun[8]; /* Logical Unit Number */
+ __virtio64 tag; /* Command identifier */
+ u8 task_attr; /* Task attribute */
+ u8 prio; /* SAM command priority field */
+ u8 crn;
+ __virtio32 pi_bytesout; /* DataOUT PI Number of bytes */
+ __virtio32 pi_bytesin; /* DataIN PI Number of bytes */
+ u8 cdb[VIRTIO_SCSI_CDB_SIZE];
+} __packed;
+
+/* Response, followed by sense data and data-in */
+struct virtio_scsi_cmd_resp {
+ __virtio32 sense_len; /* Sense data length */
+ __virtio32 resid; /* Residual bytes in data buffer */
+ __virtio16 status_qualifier; /* Status qualifier */
+ u8 status; /* Command completion status */
+ u8 response; /* Response values */
+ u8 sense[VIRTIO_SCSI_SENSE_SIZE];
+} __packed;
+
+/* Task Management Request */
+struct virtio_scsi_ctrl_tmf_req {
+ __virtio32 type;
+ __virtio32 subtype;
+ u8 lun[8];
+ __virtio64 tag;
+} __packed;
+
+struct virtio_scsi_ctrl_tmf_resp {
+ u8 response;
+} __packed;
+
+/* Asynchronous notification query/subscription */
+struct virtio_scsi_ctrl_an_req {
+ __virtio32 type;
+ u8 lun[8];
+ __virtio32 event_requested;
+} __packed;
+
+struct virtio_scsi_ctrl_an_resp {
+ __virtio32 event_actual;
+ u8 response;
+} __packed;
+
+struct virtio_scsi_event {
+ __virtio32 event;
+ u8 lun[8];
+ __virtio32 reason;
+} __packed;
+
+struct virtio_scsi_config {
+ u32 num_queues;
+ u32 seg_max;
+ u32 max_sectors;
+ u32 cmd_per_lun;
+ u32 event_info_size;
+ u32 sense_size;
+ u32 cdb_size;
+ u16 max_channel;
+ u16 max_target;
+ u32 max_lun;
+} __packed;
+
+/* Feature Bits */
+#define VIRTIO_SCSI_F_INOUT 0
+#define VIRTIO_SCSI_F_HOTPLUG 1
+#define VIRTIO_SCSI_F_CHANGE 2
+#define VIRTIO_SCSI_F_T10_PI 3
+
+/* Response codes */
+#define VIRTIO_SCSI_S_OK 0
+#define VIRTIO_SCSI_S_OVERRUN 1
+#define VIRTIO_SCSI_S_ABORTED 2
+#define VIRTIO_SCSI_S_BAD_TARGET 3
+#define VIRTIO_SCSI_S_RESET 4
+#define VIRTIO_SCSI_S_BUSY 5
+#define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6
+#define VIRTIO_SCSI_S_TARGET_FAILURE 7
+#define VIRTIO_SCSI_S_NEXUS_FAILURE 8
+#define VIRTIO_SCSI_S_FAILURE 9
+#define VIRTIO_SCSI_S_FUNCTION_SUCCEEDED 10
+#define VIRTIO_SCSI_S_FUNCTION_REJECTED 11
+#define VIRTIO_SCSI_S_INCORRECT_LUN 12
+
+/* Controlq type codes. */
+#define VIRTIO_SCSI_T_TMF 0
+#define VIRTIO_SCSI_T_AN_QUERY 1
+#define VIRTIO_SCSI_T_AN_SUBSCRIBE 2
+
+/* Valid TMF subtypes. */
+#define VIRTIO_SCSI_T_TMF_ABORT_TASK 0
+#define VIRTIO_SCSI_T_TMF_ABORT_TASK_SET 1
+#define VIRTIO_SCSI_T_TMF_CLEAR_ACA 2
+#define VIRTIO_SCSI_T_TMF_CLEAR_TASK_SET 3
+#define VIRTIO_SCSI_T_TMF_I_T_NEXUS_RESET 4
+#define VIRTIO_SCSI_T_TMF_LOGICAL_UNIT_RESET 5
+#define VIRTIO_SCSI_T_TMF_QUERY_TASK 6
+#define VIRTIO_SCSI_T_TMF_QUERY_TASK_SET 7
+
+/* Events. */
+#define VIRTIO_SCSI_T_EVENTS_MISSED 0x80000000
+#define VIRTIO_SCSI_T_NO_EVENT 0
+#define VIRTIO_SCSI_T_TRANSPORT_RESET 1
+#define VIRTIO_SCSI_T_ASYNC_NOTIFY 2
+#define VIRTIO_SCSI_T_PARAM_CHANGE 3
+
+/* Reasons of transport reset event */
+#define VIRTIO_SCSI_EVT_RESET_HARD 0
+#define VIRTIO_SCSI_EVT_RESET_RESCAN 1
+#define VIRTIO_SCSI_EVT_RESET_REMOVED 2
+
+#define VIRTIO_SCSI_S_SIMPLE 0
+#define VIRTIO_SCSI_S_ORDERED 1
+#define VIRTIO_SCSI_S_HEAD 2
+#define VIRTIO_SCSI_S_ACA 3
+
+
+#endif /* _LINUX_VIRTIO_SCSI_H */
--
cgit v1.2.1
From fba7f020e80d59a90d6135b0965cd488cc86f695 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Sun, 23 Nov 2014 17:49:12 +0200
Subject: virtio_scsi: export to userspace
Replace uXX by __uXX and _packed by __attribute((packed))
as seems to be the norm for userspace headers.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/virtio_scsi.h | 74 ++++++++++++++++++++--------------------
2 files changed, 38 insertions(+), 37 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 615f96a6022a..2e8fd10f0299 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -428,6 +428,7 @@ header-y += virtio_net.h
header-y += virtio_pci.h
header-y += virtio_ring.h
header-y += virtio_rng.h
+header-y += virtio_scsi.h
header-y += vm_sockets.h
header-y += vt.h
header-y += wait.h
diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h
index af448649a975..42b9370771b0 100644
--- a/include/uapi/linux/virtio_scsi.h
+++ b/include/uapi/linux/virtio_scsi.h
@@ -34,78 +34,78 @@
/* SCSI command request, followed by data-out */
struct virtio_scsi_cmd_req {
- u8 lun[8]; /* Logical Unit Number */
+ __u8 lun[8]; /* Logical Unit Number */
__virtio64 tag; /* Command identifier */
- u8 task_attr; /* Task attribute */
- u8 prio; /* SAM command priority field */
- u8 crn;
- u8 cdb[VIRTIO_SCSI_CDB_SIZE];
-} __packed;
+ __u8 task_attr; /* Task attribute */
+ __u8 prio; /* SAM command priority field */
+ __u8 crn;
+ __u8 cdb[VIRTIO_SCSI_CDB_SIZE];
+} __attribute__((packed));
/* SCSI command request, followed by protection information */
struct virtio_scsi_cmd_req_pi {
- u8 lun[8]; /* Logical Unit Number */
+ __u8 lun[8]; /* Logical Unit Number */
__virtio64 tag; /* Command identifier */
- u8 task_attr; /* Task attribute */
- u8 prio; /* SAM command priority field */
- u8 crn;
+ __u8 task_attr; /* Task attribute */
+ __u8 prio; /* SAM command priority field */
+ __u8 crn;
__virtio32 pi_bytesout; /* DataOUT PI Number of bytes */
__virtio32 pi_bytesin; /* DataIN PI Number of bytes */
- u8 cdb[VIRTIO_SCSI_CDB_SIZE];
-} __packed;
+ __u8 cdb[VIRTIO_SCSI_CDB_SIZE];
+} __attribute__((packed));
/* Response, followed by sense data and data-in */
struct virtio_scsi_cmd_resp {
__virtio32 sense_len; /* Sense data length */
__virtio32 resid; /* Residual bytes in data buffer */
__virtio16 status_qualifier; /* Status qualifier */
- u8 status; /* Command completion status */
- u8 response; /* Response values */
- u8 sense[VIRTIO_SCSI_SENSE_SIZE];
-} __packed;
+ __u8 status; /* Command completion status */
+ __u8 response; /* Response values */
+ __u8 sense[VIRTIO_SCSI_SENSE_SIZE];
+} __attribute__((packed));
/* Task Management Request */
struct virtio_scsi_ctrl_tmf_req {
__virtio32 type;
__virtio32 subtype;
- u8 lun[8];
+ __u8 lun[8];
__virtio64 tag;
-} __packed;
+} __attribute__((packed));
struct virtio_scsi_ctrl_tmf_resp {
- u8 response;
-} __packed;
+ __u8 response;
+} __attribute__((packed));
/* Asynchronous notification query/subscription */
struct virtio_scsi_ctrl_an_req {
__virtio32 type;
- u8 lun[8];
+ __u8 lun[8];
__virtio32 event_requested;
-} __packed;
+} __attribute__((packed));
struct virtio_scsi_ctrl_an_resp {
__virtio32 event_actual;
- u8 response;
-} __packed;
+ __u8 response;
+} __attribute__((packed));
struct virtio_scsi_event {
__virtio32 event;
- u8 lun[8];
+ __u8 lun[8];
__virtio32 reason;
-} __packed;
+} __attribute__((packed));
struct virtio_scsi_config {
- u32 num_queues;
- u32 seg_max;
- u32 max_sectors;
- u32 cmd_per_lun;
- u32 event_info_size;
- u32 sense_size;
- u32 cdb_size;
- u16 max_channel;
- u16 max_target;
- u32 max_lun;
-} __packed;
+ __u32 num_queues;
+ __u32 seg_max;
+ __u32 max_sectors;
+ __u32 cmd_per_lun;
+ __u32 event_info_size;
+ __u32 sense_size;
+ __u32 cdb_size;
+ __u16 max_channel;
+ __u16 max_target;
+ __u32 max_lun;
+} __attribute__((packed));
/* Feature Bits */
#define VIRTIO_SCSI_F_INOUT 0
--
cgit v1.2.1
From 1f0f9106f92c7d49ec92baa6ac757aa8b0590eff Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Mon, 1 Dec 2014 13:17:40 +0200
Subject: virtio_console: virtio 1.0 support
Pretty straight-forward, just use accessors for all fields.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/uapi/linux/virtio_console.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_console.h b/include/uapi/linux/virtio_console.h
index ba260dd0b33a..b7fb108c9310 100644
--- a/include/uapi/linux/virtio_console.h
+++ b/include/uapi/linux/virtio_console.h
@@ -32,6 +32,7 @@
#ifndef _UAPI_LINUX_VIRTIO_CONSOLE_H
#define _UAPI_LINUX_VIRTIO_CONSOLE_H
#include <linux/types.h>
+#include <linux/virtio_types.h>
#include <linux/virtio_ids.h>
#include <linux/virtio_config.h>
@@ -58,9 +59,9 @@ struct virtio_console_config {
* particular port.
*/
struct virtio_console_control {
- __u32 id; /* Port number */
- __u16 event; /* The kind of control event (see below) */
- __u16 value; /* Extra information for the key */
+ __virtio32 id; /* Port number */
+ __virtio16 event; /* The kind of control event (see below) */
+ __virtio16 value; /* Extra information for the key */
};
/* Some events for control messages */
--
cgit v1.2.1
From df1b57fe59bc5b1486fe142e6ee76c493c52c543 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Mon, 1 Dec 2014 15:50:29 +0200
Subject: virtio_balloon: add legacy_only flag
We have no plans to support virtio 1.0 in balloon driver. Add an
explicit flag to mark it legacy only.
This will be used by follow-up patches.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/linux/virtio.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index f70411eb9d27..2bbf62697671 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -132,6 +132,7 @@ int virtio_device_restore(struct virtio_device *dev);
* @feature_table_size: number of entries in the feature table array.
* @feature_table_legacy: same as feature_table but when working in legacy mode.
* @feature_table_size_legacy: number of entries in feature table legacy array.
+ * @legacy_only: driver does not support virtio 1.0.
* @probe: the function to call when a device is found. Returns 0 or -errno.
* @remove: the function to call when a device is removed.
* @config_changed: optional function to call when the device configuration
@@ -144,6 +145,7 @@ struct virtio_driver {
unsigned int feature_table_size;
const unsigned int *feature_table_legacy;
unsigned int feature_table_size_legacy;
+ bool legacy_only;
int (*probe)(struct virtio_device *dev);
void (*scan)(struct virtio_device *dev);
void (*remove)(struct virtio_device *dev);
--
cgit v1.2.1
From 747ae34a6ef681fbd993be214d8c0a30bd4a2fda Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Mon, 1 Dec 2014 15:52:40 +0200
Subject: virtio: make VIRTIO_F_VERSION_1 a transport bit
Activate VIRTIO_F_VERSION_1 automatically unless legacy_only
is set.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/uapi/linux/virtio_config.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
index 4d05671fbaec..a6d0cdeaacd4 100644
--- a/include/uapi/linux/virtio_config.h
+++ b/include/uapi/linux/virtio_config.h
@@ -43,11 +43,11 @@
/* We've given up on this device. */
#define VIRTIO_CONFIG_S_FAILED 0x80
-/* Some virtio feature bits (currently bits 28 through 31) are reserved for the
+/* Some virtio feature bits (currently bits 28 through 32) are reserved for the
* transport being used (eg. virtio_ring), the rest are per-device feature
* bits. */
#define VIRTIO_TRANSPORT_F_START 28
-#define VIRTIO_TRANSPORT_F_END 32
+#define VIRTIO_TRANSPORT_F_END 33
/* Do we get callbacks when the ring is completely used, even if we've
* suppressed them? */
--
cgit v1.2.1
From b6098c30423cb1f0f5a4d0a5495e2670e274e544 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 4 Dec 2014 18:49:58 +0200
Subject: virtio: add API to detect legacy devices
transports need to be able to detect legacy-only
devices (ATM balloon only) to use legacy path
to drive them.
Add a core API to do just that.
The implementation just blacklists balloon:
not too pretty, but let's not over-engineer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/linux/virtio.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 2bbf62697671..d666bcb57401 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -108,6 +108,8 @@ struct virtio_device {
void *priv;
};
+bool virtio_device_is_legacy_only(struct virtio_device_id id);
+
static inline struct virtio_device *dev_to_virtio(struct device *_dev)
{
return container_of(_dev, struct virtio_device, dev);
--
cgit v1.2.1
From 5c609a5ef05d98e26778824ba84581fe5e400db6 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 4 Dec 2014 20:20:27 +0200
Subject: virtio: allow finalize_features to fail
This will make it easy for transports to validate features and return
failure.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/linux/virtio_config.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 1fa5faa26440..7979f850e7ac 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -47,6 +47,7 @@
* vdev: the virtio_device
* This gives the final feature bits for the device: it can change
* the dev->feature bits if it wants.
+ * Returns 0 on success or error status
* @bus_name: return the bus name associated with the device
* vdev: the virtio_device
* This returns a pointer to the bus name a la pci_name from which
@@ -68,7 +69,7 @@ struct virtio_config_ops {
const char *names[]);
void (*del_vqs)(struct virtio_device *);
u64 (*get_features)(struct virtio_device *vdev);
- void (*finalize_features)(struct virtio_device *vdev);
+ int (*finalize_features)(struct virtio_device *vdev);
const char *(*bus_name)(struct virtio_device *vdev);
int (*set_vq_affinity)(struct virtqueue *vq, int cpu);
};
--
cgit v1.2.1
From 4d152e2c9a6a3e3556ce5da7782a9e2836edbe0f Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 19 Nov 2014 07:51:14 -0500
Subject: sunrpc: add a generic rq_flags field to svc_rqst and move rq_secure
to it
In a later patch, we're going to need some atomic bit flags. Since that
field will need to be an unsigned long, we mitigate that space
consumption by migrating some other bitflags to the new field. Start
with the rq_secure flag.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 4 ++--
include/trace/events/sunrpc.h | 17 +++++++++++++----
2 files changed, 15 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 21678464883a..b60eb7c3f3f7 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -253,8 +253,8 @@ struct svc_rqst {
u32 rq_vers; /* program version */
u32 rq_proc; /* procedure number */
u32 rq_prot; /* IP protocol */
- unsigned short
- rq_secure : 1; /* secure port */
+#define RQ_SECURE (0) /* secure port */
+ unsigned long rq_flags; /* flags field */
unsigned short rq_local : 1; /* local request */
void * rq_argp; /* decoded arguments */
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 171ca4ff6d99..5eb5f79d9794 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -412,6 +412,10 @@ TRACE_EVENT(xs_tcp_data_recv,
__entry->copied, __entry->reclen, __entry->offset)
);
+#define show_rqstp_flags(flags) \
+ __print_flags(flags, "|", \
+ { (1UL << RQ_SECURE), "RQ_SECURE"})
+
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
@@ -421,16 +425,19 @@ TRACE_EVENT(svc_recv,
__field(struct sockaddr *, addr)
__field(__be32, xid)
__field(int, status)
+ __field(unsigned long, flags)
),
TP_fast_assign(
__entry->addr = (struct sockaddr *)&rqst->rq_addr;
__entry->xid = status > 0 ? rqst->rq_xid : 0;
__entry->status = status;
+ __entry->flags = rqst->rq_flags;
),
- TP_printk("addr=%pIScp xid=0x%x status=%d", __entry->addr,
- be32_to_cpu(__entry->xid), __entry->status)
+ TP_printk("addr=%pIScp xid=0x%x status=%d flags=%s", __entry->addr,
+ be32_to_cpu(__entry->xid), __entry->status,
+ show_rqstp_flags(__entry->flags))
);
DECLARE_EVENT_CLASS(svc_rqst_status,
@@ -444,6 +451,7 @@ DECLARE_EVENT_CLASS(svc_rqst_status,
__field(__be32, xid)
__field(int, dropme)
__field(int, status)
+ __field(unsigned long, flags)
),
TP_fast_assign(
@@ -451,11 +459,12 @@ DECLARE_EVENT_CLASS(svc_rqst_status,
__entry->xid = rqst->rq_xid;
__entry->dropme = (int)rqst->rq_dropme;
__entry->status = status;
+ __entry->flags = rqst->rq_flags;
),
- TP_printk("addr=%pIScp rq_xid=0x%x dropme=%d status=%d",
+ TP_printk("addr=%pIScp rq_xid=0x%x dropme=%d status=%d flags=%s",
__entry->addr, be32_to_cpu(__entry->xid), __entry->dropme,
- __entry->status)
+ __entry->status, show_rqstp_flags(__entry->flags))
);
DEFINE_EVENT(svc_rqst_status, svc_process,
--
cgit v1.2.1
From 7501cc2bcf9a71cc1f19e38775c234815ee44578 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 19 Nov 2014 07:51:15 -0500
Subject: sunrpc: move rq_local field to rq_flags
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 2 +-
include/trace/events/sunrpc.h | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index b60eb7c3f3f7..a91df9047f32 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -254,8 +254,8 @@ struct svc_rqst {
u32 rq_proc; /* procedure number */
u32 rq_prot; /* IP protocol */
#define RQ_SECURE (0) /* secure port */
+#define RQ_LOCAL (1) /* local request */
unsigned long rq_flags; /* flags field */
- unsigned short rq_local : 1; /* local request */
void * rq_argp; /* decoded arguments */
void * rq_resp; /* xdr'd results */
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 5eb5f79d9794..98259f163cd8 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -414,7 +414,8 @@ TRACE_EVENT(xs_tcp_data_recv,
#define show_rqstp_flags(flags) \
__print_flags(flags, "|", \
- { (1UL << RQ_SECURE), "RQ_SECURE"})
+ { (1UL << RQ_SECURE), "RQ_SECURE"}, \
+ { (1UL << RQ_LOCAL), "RQ_LOCAL"})
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
--
cgit v1.2.1
From 30660e04b0d4bbbd15fd21098681f45a9f4080b9 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 19 Nov 2014 07:51:16 -0500
Subject: sunrpc: move rq_usedeferral flag to rq_flags
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 2 +-
include/trace/events/sunrpc.h | 9 +++++----
2 files changed, 6 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index a91df9047f32..6a3cf4c76dce 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -236,7 +236,6 @@ struct svc_rqst {
struct svc_cred rq_cred; /* auth info */
void * rq_xprt_ctxt; /* transport specific context ptr */
struct svc_deferred_req*rq_deferred; /* deferred request we are replaying */
- bool rq_usedeferral; /* use deferral */
size_t rq_xprt_hlen; /* xprt header len */
struct xdr_buf rq_arg;
@@ -255,6 +254,7 @@ struct svc_rqst {
u32 rq_prot; /* IP protocol */
#define RQ_SECURE (0) /* secure port */
#define RQ_LOCAL (1) /* local request */
+#define RQ_USEDEFERRAL (2) /* use deferral */
unsigned long rq_flags; /* flags field */
void * rq_argp; /* decoded arguments */
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 98259f163cd8..6d1facdebc92 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -412,10 +412,11 @@ TRACE_EVENT(xs_tcp_data_recv,
__entry->copied, __entry->reclen, __entry->offset)
);
-#define show_rqstp_flags(flags) \
- __print_flags(flags, "|", \
- { (1UL << RQ_SECURE), "RQ_SECURE"}, \
- { (1UL << RQ_LOCAL), "RQ_LOCAL"})
+#define show_rqstp_flags(flags) \
+ __print_flags(flags, "|", \
+ { (1UL << RQ_SECURE), "RQ_SECURE"}, \
+ { (1UL << RQ_LOCAL), "RQ_LOCAL"}, \
+ { (1UL << RQ_USEDEFERRAL), "RQ_USEDEFERRAL"})
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
--
cgit v1.2.1
From 78b65eb3fda95c6d131c4bbb0536e21f0bd7a7d4 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 19 Nov 2014 07:51:17 -0500
Subject: sunrpc: move rq_dropme flag into rq_flags
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 2 +-
include/trace/events/sunrpc.h | 8 ++++----
2 files changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 6a3cf4c76dce..d4ea3e5246b0 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -255,6 +255,7 @@ struct svc_rqst {
#define RQ_SECURE (0) /* secure port */
#define RQ_LOCAL (1) /* local request */
#define RQ_USEDEFERRAL (2) /* use deferral */
+#define RQ_DROPME (3) /* drop current reply */
unsigned long rq_flags; /* flags field */
void * rq_argp; /* decoded arguments */
@@ -271,7 +272,6 @@ struct svc_rqst {
struct cache_req rq_chandle; /* handle passed to caches for
* request delaying
*/
- bool rq_dropme;
/* Catering to nfsd */
struct auth_domain * rq_client; /* RPC peer info */
struct auth_domain * rq_gssclient; /* "gss/"-style peer info */
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 6d1facdebc92..355671f19a9f 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -416,7 +416,8 @@ TRACE_EVENT(xs_tcp_data_recv,
__print_flags(flags, "|", \
{ (1UL << RQ_SECURE), "RQ_SECURE"}, \
{ (1UL << RQ_LOCAL), "RQ_LOCAL"}, \
- { (1UL << RQ_USEDEFERRAL), "RQ_USEDEFERRAL"})
+ { (1UL << RQ_USEDEFERRAL), "RQ_USEDEFERRAL"}, \
+ { (1UL << RQ_DROPME), "RQ_DROPME"})
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
@@ -459,13 +460,12 @@ DECLARE_EVENT_CLASS(svc_rqst_status,
TP_fast_assign(
__entry->addr = (struct sockaddr *)&rqst->rq_addr;
__entry->xid = rqst->rq_xid;
- __entry->dropme = (int)rqst->rq_dropme;
__entry->status = status;
__entry->flags = rqst->rq_flags;
),
- TP_printk("addr=%pIScp rq_xid=0x%x dropme=%d status=%d flags=%s",
- __entry->addr, be32_to_cpu(__entry->xid), __entry->dropme,
+ TP_printk("addr=%pIScp rq_xid=0x%x status=%d flags=%s",
+ __entry->addr, be32_to_cpu(__entry->xid),
__entry->status, show_rqstp_flags(__entry->flags))
);
--
cgit v1.2.1
From 779fb0f3af3089daa2e88cf8ef0ef0c5d2fecb40 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 19 Nov 2014 07:51:18 -0500
Subject: sunrpc: move rq_splice_ok flag into rq_flags
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 6 +++---
include/trace/events/sunrpc.h | 3 ++-
2 files changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index d4ea3e5246b0..2714287fc4f6 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -256,6 +256,9 @@ struct svc_rqst {
#define RQ_LOCAL (1) /* local request */
#define RQ_USEDEFERRAL (2) /* use deferral */
#define RQ_DROPME (3) /* drop current reply */
+#define RQ_SPLICE_OK (4) /* turned off in gss privacy
+ * to prevent encrypting page
+ * cache pages */
unsigned long rq_flags; /* flags field */
void * rq_argp; /* decoded arguments */
@@ -277,9 +280,6 @@ struct svc_rqst {
struct auth_domain * rq_gssclient; /* "gss/"-style peer info */
int rq_cachetype;
struct svc_cacherep * rq_cacherep; /* cache info */
- bool rq_splice_ok; /* turned off in gss privacy
- * to prevent encrypting page
- * cache pages */
struct task_struct *rq_task; /* service thread */
};
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 355671f19a9f..5848fc235869 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -417,7 +417,8 @@ TRACE_EVENT(xs_tcp_data_recv,
{ (1UL << RQ_SECURE), "RQ_SECURE"}, \
{ (1UL << RQ_LOCAL), "RQ_LOCAL"}, \
{ (1UL << RQ_USEDEFERRAL), "RQ_USEDEFERRAL"}, \
- { (1UL << RQ_DROPME), "RQ_DROPME"})
+ { (1UL << RQ_DROPME), "RQ_DROPME"}, \
+ { (1UL << RQ_SPLICE_OK), "RQ_SPLICE_OK"})
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
--
cgit v1.2.1
From 62978b3c619422d0ea17dbd39efdb2328295bcfb Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 19 Nov 2014 07:51:19 -0500
Subject: sunrpc: move rq_cachetype field to better optimize space
There are a couple of holes in the svc_rqst field on x86_64. Move the
rq_cachetype to a different location to eliminate both of them.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 2714287fc4f6..8054a30c8a95 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -252,6 +252,7 @@ struct svc_rqst {
u32 rq_vers; /* program version */
u32 rq_proc; /* procedure number */
u32 rq_prot; /* IP protocol */
+ int rq_cachetype; /* catering to nfsd */
#define RQ_SECURE (0) /* secure port */
#define RQ_LOCAL (1) /* local request */
#define RQ_USEDEFERRAL (2) /* use deferral */
@@ -278,7 +279,6 @@ struct svc_rqst {
/* Catering to nfsd */
struct auth_domain * rq_client; /* RPC peer info */
struct auth_domain * rq_gssclient; /* "gss/"-style peer info */
- int rq_cachetype;
struct svc_cacherep * rq_cacherep; /* cache info */
struct task_struct *rq_task; /* service thread */
};
--
cgit v1.2.1
From 4d5db3f536ae3886ac86877742e6f8ce69a5de06 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Wed, 19 Nov 2014 07:51:20 -0500
Subject: sunrpc: convert sp_task_pending flag to use atomic bitops
In a later patch, we'll want to be able to handle this flag without
holding the sp_lock. Change this field to an unsigned long flags
field, and declare a new flag in it that can be managed with atomic
bitops.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 8054a30c8a95..5f0ab39bf7c3 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -50,7 +50,9 @@ struct svc_pool {
unsigned int sp_nrthreads; /* # of threads in pool */
struct list_head sp_all_threads; /* all server threads */
struct svc_pool_stats sp_stats; /* statistics on pool operation */
- int sp_task_pending;/* has pending task */
+#define SP_TASK_PENDING (0) /* still work to do even if no
+ * xprt is queued. */
+ unsigned long sp_flags;
} ____cacheline_aligned_in_smp;
/*
--
cgit v1.2.1
From 812443865c5fc255363d4a684a62c086af1addca Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 21 Nov 2014 14:19:28 -0500
Subject: sunrpc: add a rcu_head to svc_rqst and use kfree_rcu to free it
...also make the manipulation of sp_all_threads list use RCU-friendly
functions.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Tested-by: Chris Worley <chris.worley@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 2 ++
include/trace/events/sunrpc.h | 3 ++-
2 files changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 5f0ab39bf7c3..7f80a99c59e4 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -223,6 +223,7 @@ static inline void svc_putu32(struct kvec *iov, __be32 val)
struct svc_rqst {
struct list_head rq_list; /* idle list */
struct list_head rq_all; /* all threads list */
+ struct rcu_head rq_rcu_head; /* for RCU deferred kfree */
struct svc_xprt * rq_xprt; /* transport ptr */
struct sockaddr_storage rq_addr; /* peer address */
@@ -262,6 +263,7 @@ struct svc_rqst {
#define RQ_SPLICE_OK (4) /* turned off in gss privacy
* to prevent encrypting page
* cache pages */
+#define RQ_VICTIM (5) /* about to be shut down */
unsigned long rq_flags; /* flags field */
void * rq_argp; /* decoded arguments */
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 5848fc235869..08a5fed50f34 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -418,7 +418,8 @@ TRACE_EVENT(xs_tcp_data_recv,
{ (1UL << RQ_LOCAL), "RQ_LOCAL"}, \
{ (1UL << RQ_USEDEFERRAL), "RQ_USEDEFERRAL"}, \
{ (1UL << RQ_DROPME), "RQ_DROPME"}, \
- { (1UL << RQ_SPLICE_OK), "RQ_SPLICE_OK"})
+ { (1UL << RQ_SPLICE_OK), "RQ_SPLICE_OK"}, \
+ { (1UL << RQ_VICTIM), "RQ_VICTIM"})
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
--
cgit v1.2.1
From 403c7b44441d60aba7f8a134c31279ffa60ea769 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 21 Nov 2014 14:19:29 -0500
Subject: sunrpc: fix potential races in pool_stats collection
In a later patch, we'll be removing some spinlocking around the socket
and thread queueing code in order to fix some contention problems. At
that point, the stats counters will no longer be protected by the
sp_lock.
Change the counters to atomic_long_t fields, except for the
"sockets_queued" counter which will still be manipulated under a
spinlock.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Tested-by: Chris Worley <chris.worley@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 7f80a99c59e4..513957eba0a5 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -26,10 +26,10 @@ typedef int (*svc_thread_fn)(void *);
/* statistics for svc_pool structures */
struct svc_pool_stats {
- unsigned long packets;
+ atomic_long_t packets;
unsigned long sockets_queued;
- unsigned long threads_woken;
- unsigned long threads_timedout;
+ atomic_long_t threads_woken;
+ atomic_long_t threads_timedout;
};
/*
--
cgit v1.2.1
From b1691bc03d4eddb959234409167bef9be9e62d74 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 21 Nov 2014 14:19:30 -0500
Subject: sunrpc: convert to lockless lookup of queued server threads
Testing has shown that the pool->sp_lock can be a bottleneck on a busy
server. Every time data is received on a socket, the server must take
that lock in order to dequeue a thread from the sp_threads list.
Address this problem by eliminating the sp_threads list (which contains
threads that are currently idle) and replacing it with a RQ_BUSY flag in
svc_rqst. This allows us to walk the sp_all_threads list under the
rcu_read_lock and find a suitable thread for the xprt by doing a
test_and_set_bit.
Note that we do still have a potential atomicity problem however with
this approach. We don't want svc_xprt_do_enqueue to set the
rqst->rq_xprt pointer unless a test_and_set_bit of RQ_BUSY returned
zero (which indicates that the thread was idle). But, by the time we
check that, the bit could be flipped by a waking thread.
To address this, we acquire a new per-rqst spinlock (rq_lock) and take
that before doing the test_and_set_bit. If that returns false, then we
can set rq_xprt and drop the spinlock. Then, when the thread wakes up,
it must set the bit under the same spinlock and can trust that if it was
already set then the rq_xprt is also properly set.
With this scheme, the case where we have an idle thread no longer needs
to take the highly contended pool->sp_lock at all, and that removes the
bottleneck.
That still leaves one issue: What of the case where we walk the whole
sp_all_threads list and don't find an idle thread? Because the search is
lockess, it's possible for the queueing to race with a thread that is
going to sleep. To address that, we queue the xprt and then search again.
If we find an idle thread at that point, we can't attach the xprt to it
directly since that might race with a different thread waking up and
finding it. All we can do is wake the idle thread back up and let it
attempt to find the now-queued xprt.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Tested-by: Chris Worley <chris.worley@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/linux/sunrpc/svc.h | 4 ++--
include/trace/events/sunrpc.h | 3 ++-
2 files changed, 4 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 513957eba0a5..6f22cfeef5e3 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -45,7 +45,6 @@ struct svc_pool_stats {
struct svc_pool {
unsigned int sp_id; /* pool id; also node id on NUMA */
spinlock_t sp_lock; /* protects all fields */
- struct list_head sp_threads; /* idle server threads */
struct list_head sp_sockets; /* pending sockets */
unsigned int sp_nrthreads; /* # of threads in pool */
struct list_head sp_all_threads; /* all server threads */
@@ -221,7 +220,6 @@ static inline void svc_putu32(struct kvec *iov, __be32 val)
* processed.
*/
struct svc_rqst {
- struct list_head rq_list; /* idle list */
struct list_head rq_all; /* all threads list */
struct rcu_head rq_rcu_head; /* for RCU deferred kfree */
struct svc_xprt * rq_xprt; /* transport ptr */
@@ -264,6 +262,7 @@ struct svc_rqst {
* to prevent encrypting page
* cache pages */
#define RQ_VICTIM (5) /* about to be shut down */
+#define RQ_BUSY (6) /* request is busy */
unsigned long rq_flags; /* flags field */
void * rq_argp; /* decoded arguments */
@@ -285,6 +284,7 @@ struct svc_rqst {
struct auth_domain * rq_gssclient; /* "gss/"-style peer info */
struct svc_cacherep * rq_cacherep; /* cache info */
struct task_struct *rq_task; /* service thread */
+ spinlock_t rq_lock; /* per-request lock */
};
#define SVC_NET(svc_rqst) (svc_rqst->rq_xprt->xpt_net)
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 08a5fed50f34..ee4438a63a48 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -419,7 +419,8 @@ TRACE_EVENT(xs_tcp_data_recv,
{ (1UL << RQ_USEDEFERRAL), "RQ_USEDEFERRAL"}, \
{ (1UL << RQ_DROPME), "RQ_DROPME"}, \
{ (1UL << RQ_SPLICE_OK), "RQ_SPLICE_OK"}, \
- { (1UL << RQ_VICTIM), "RQ_VICTIM"})
+ { (1UL << RQ_VICTIM), "RQ_VICTIM"}, \
+ { (1UL << RQ_BUSY), "RQ_BUSY"})
TRACE_EVENT(svc_recv,
TP_PROTO(struct svc_rqst *rqst, int status),
--
cgit v1.2.1
From 83a712e0afefaf68555f816ea78ecd2862c6cf30 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@primarydata.com>
Date: Fri, 21 Nov 2014 14:19:31 -0500
Subject: sunrpc: add some tracepoints around enqueue and dequeue of svc_xprt
These were useful when I was tracking down a race condition between
svc_xprt_do_enqueue and svc_get_next_xprt.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
include/trace/events/sunrpc.h | 94 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 94 insertions(+)
(limited to 'include')
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index ee4438a63a48..b9c1dc6c825a 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -8,6 +8,7 @@
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/xprtsock.h>
+#include <linux/sunrpc/svc_xprt.h>
#include <net/tcp_states.h>
#include <linux/net.h>
#include <linux/tracepoint.h>
@@ -480,6 +481,99 @@ DEFINE_EVENT(svc_rqst_status, svc_send,
TP_PROTO(struct svc_rqst *rqst, int status),
TP_ARGS(rqst, status));
+#define show_svc_xprt_flags(flags) \
+ __print_flags(flags, "|", \
+ { (1UL << XPT_BUSY), "XPT_BUSY"}, \
+ { (1UL << XPT_CONN), "XPT_CONN"}, \
+ { (1UL << XPT_CLOSE), "XPT_CLOSE"}, \
+ { (1UL << XPT_DATA), "XPT_DATA"}, \
+ { (1UL << XPT_TEMP), "XPT_TEMP"}, \
+ { (1UL << XPT_DEAD), "XPT_DEAD"}, \
+ { (1UL << XPT_CHNGBUF), "XPT_CHNGBUF"}, \
+ { (1UL << XPT_DEFERRED), "XPT_DEFERRED"}, \
+ { (1UL << XPT_OLD), "XPT_OLD"}, \
+ { (1UL << XPT_LISTENER), "XPT_LISTENER"}, \
+ { (1UL << XPT_CACHE_AUTH), "XPT_CACHE_AUTH"}, \
+ { (1UL << XPT_LOCAL), "XPT_LOCAL"})
+
+TRACE_EVENT(svc_xprt_do_enqueue,
+ TP_PROTO(struct svc_xprt *xprt, struct svc_rqst *rqst),
+
+ TP_ARGS(xprt, rqst),
+
+ TP_STRUCT__entry(
+ __field(struct svc_xprt *, xprt)
+ __field(struct svc_rqst *, rqst)
+ ),
+
+ TP_fast_assign(
+ __entry->xprt = xprt;
+ __entry->rqst = rqst;
+ ),
+
+ TP_printk("xprt=0x%p addr=%pIScp pid=%d flags=%s", __entry->xprt,
+ (struct sockaddr *)&__entry->xprt->xpt_remote,
+ __entry->rqst ? __entry->rqst->rq_task->pid : 0,
+ show_svc_xprt_flags(__entry->xprt->xpt_flags))
+);
+
+TRACE_EVENT(svc_xprt_dequeue,
+ TP_PROTO(struct svc_xprt *xprt),
+
+ TP_ARGS(xprt),
+
+ TP_STRUCT__entry(
+ __field(struct svc_xprt *, xprt)
+ __field_struct(struct sockaddr_storage, ss)
+ __field(unsigned long, flags)
+ ),
+
+ TP_fast_assign(
+ __entry->xprt = xprt,
+ xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss));
+ __entry->flags = xprt ? xprt->xpt_flags : 0;
+ ),
+
+ TP_printk("xprt=0x%p addr=%pIScp flags=%s", __entry->xprt,
+ (struct sockaddr *)&__entry->ss,
+ show_svc_xprt_flags(__entry->flags))
+);
+
+TRACE_EVENT(svc_wake_up,
+ TP_PROTO(int pid),
+
+ TP_ARGS(pid),
+
+ TP_STRUCT__entry(
+ __field(int, pid)
+ ),
+
+ TP_fast_assign(
+ __entry->pid = pid;
+ ),
+
+ TP_printk("pid=%d", __entry->pid)
+);
+
+TRACE_EVENT(svc_handle_xprt,
+ TP_PROTO(struct svc_xprt *xprt, int len),
+
+ TP_ARGS(xprt, len),
+
+ TP_STRUCT__entry(
+ __field(struct svc_xprt *, xprt)
+ __field(int, len)
+ ),
+
+ TP_fast_assign(
+ __entry->xprt = xprt;
+ __entry->len = len;
+ ),
+
+ TP_printk("xprt=0x%p addr=%pIScp len=%d flags=%s", __entry->xprt,
+ (struct sockaddr *)&__entry->xprt->xpt_remote, __entry->len,
+ show_svc_xprt_flags(__entry->xprt->xpt_flags))
+);
#endif /* _TRACE_SUNRPC_H */
#include <trace/define_trace.h>
--
cgit v1.2.1
From 5f4d8d97f5d979c6a62dcc45619b06d34311937c Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Wed, 3 Dec 2014 09:33:17 -0800
Subject: tc_act: export uapi header file
This file is used by iproute2 and should be exported.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/tc_act/Kbuild | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/tc_act/Kbuild b/include/uapi/linux/tc_act/Kbuild
index 56f121605c99..b057da2b87a4 100644
--- a/include/uapi/linux/tc_act/Kbuild
+++ b/include/uapi/linux/tc_act/Kbuild
@@ -7,3 +7,4 @@ header-y += tc_mirred.h
header-y += tc_nat.h
header-y += tc_pedit.h
header-y += tc_skbedit.h
+header-y += tc_vlan.h
--
cgit v1.2.1
From 395eea6ccf2b253f81b4718ffbcae67d36fe2e69 Mon Sep 17 00:00:00 2001
From: Mahesh Bandewar <maheshb@google.com>
Date: Wed, 3 Dec 2014 13:46:24 -0800
Subject: rtnetlink: delay RTM_DELLINK notification until after ndo_uninit()
The commit 56bfa7ee7c ("unregister_netdevice : move RTM_DELLINK to
until after ndo_uninit") tried to do this ealier but while doing so
it created a problem. Unfortunately the delayed rtmsg_ifinfo() also
delayed call to fill_info(). So this translated into asking driver
to remove private state and then query it's private state. This
could have catastropic consequences.
This change breaks the rtmsg_ifinfo() into two parts - one takes the
precise snapshot of the device by called fill_info() before calling
the ndo_uninit() and the second part sends the notification using
collected snapshot.
It was brought to notice when last link is deleted from an ipvlan device
when it has free-ed the port and the subsequent .fill_info() call is
trying to get the info from the port.
kernel: [ 255.139429] ------------[ cut here ]------------
kernel: [ 255.139439] WARNING: CPU: 12 PID: 11173 at net/core/rtnetlink.c:2238 rtmsg_ifinfo+0x100/0x110()
kernel: [ 255.139493] Modules linked in: ipvlan bonding w1_therm ds2482 wire cdc_acm ehci_pci ehci_hcd i2c_dev i2c_i801 i2c_core msr cpuid bnx2x ptp pps_core mdio libcrc32c
kernel: [ 255.139513] CPU: 12 PID: 11173 Comm: ip Not tainted 3.18.0-smp-DEV #167
kernel: [ 255.139514] Hardware name: Intel RML,PCH/Ibis_QC_18, BIOS 1.0.10 05/15/2012
kernel: [ 255.139515] 0000000000000009 ffff880851b6b828 ffffffff815d87f4 00000000000000e0
kernel: [ 255.139516] 0000000000000000 ffff880851b6b868 ffffffff8109c29c 0000000000000000
kernel: [ 255.139518] 00000000ffffffa6 00000000000000d0 ffffffff81aaf580 0000000000000011
kernel: [ 255.139520] Call Trace:
kernel: [ 255.139527] [<ffffffff815d87f4>] dump_stack+0x46/0x58
kernel: [ 255.139531] [<ffffffff8109c29c>] warn_slowpath_common+0x8c/0xc0
kernel: [ 255.139540] [<ffffffff8109c2ea>] warn_slowpath_null+0x1a/0x20
kernel: [ 255.139544] [<ffffffff8150d570>] rtmsg_ifinfo+0x100/0x110
kernel: [ 255.139547] [<ffffffff814f78b5>] rollback_registered_many+0x1d5/0x2d0
kernel: [ 255.139549] [<ffffffff814f79cf>] unregister_netdevice_many+0x1f/0xb0
kernel: [ 255.139551] [<ffffffff8150acab>] rtnl_dellink+0xbb/0x110
kernel: [ 255.139553] [<ffffffff8150da90>] rtnetlink_rcv_msg+0xa0/0x240
kernel: [ 255.139557] [<ffffffff81329283>] ? rhashtable_lookup_compare+0x43/0x80
kernel: [ 255.139558] [<ffffffff8150d9f0>] ? __rtnl_unlock+0x20/0x20
kernel: [ 255.139562] [<ffffffff8152cb11>] netlink_rcv_skb+0xb1/0xc0
kernel: [ 255.139563] [<ffffffff8150a495>] rtnetlink_rcv+0x25/0x40
kernel: [ 255.139565] [<ffffffff8152c398>] netlink_unicast+0x178/0x230
kernel: [ 255.139567] [<ffffffff8152c75f>] netlink_sendmsg+0x30f/0x420
kernel: [ 255.139571] [<ffffffff814e0b0c>] sock_sendmsg+0x9c/0xd0
kernel: [ 255.139575] [<ffffffff811d1d7f>] ? rw_copy_check_uvector+0x6f/0x130
kernel: [ 255.139577] [<ffffffff814e11c9>] ? copy_msghdr_from_user+0x139/0x1b0
kernel: [ 255.139578] [<ffffffff814e1774>] ___sys_sendmsg+0x304/0x310
kernel: [ 255.139581] [<ffffffff81198723>] ? handle_mm_fault+0xca3/0xde0
kernel: [ 255.139585] [<ffffffff811ebc4c>] ? destroy_inode+0x3c/0x70
kernel: [ 255.139589] [<ffffffff8108e6ec>] ? __do_page_fault+0x20c/0x500
kernel: [ 255.139597] [<ffffffff811e8336>] ? dput+0xb6/0x190
kernel: [ 255.139606] [<ffffffff811f05f6>] ? mntput+0x26/0x40
kernel: [ 255.139611] [<ffffffff811d2b94>] ? __fput+0x174/0x1e0
kernel: [ 255.139613] [<ffffffff814e2129>] __sys_sendmsg+0x49/0x90
kernel: [ 255.139615] [<ffffffff814e2182>] SyS_sendmsg+0x12/0x20
kernel: [ 255.139617] [<ffffffff815df092>] system_call_fastpath+0x12/0x17
kernel: [ 255.139619] ---[ end trace 5e6703e87d984f6b ]---
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Reported-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Roopa Prabhu <roopa@cumulusnetworks.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/rtnetlink.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 3b0419072f88..5db76a32fcab 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -17,6 +17,11 @@ extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst,
u32 id, long expires, u32 error);
void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change, gfp_t flags);
+struct sk_buff *rtmsg_ifinfo_build_skb(int type, struct net_device *dev,
+ unsigned change, gfp_t flags);
+void rtmsg_ifinfo_send(struct sk_buff *skb, struct net_device *dev,
+ gfp_t flags);
+
/* RTNL is used as a global lock for all changes to network configuration */
extern void rtnl_lock(void);
--
cgit v1.2.1
From 6ffe75eb53564953e75c051e1c28676e1e56f385 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 3 Dec 2014 17:04:39 -0800
Subject: net: avoid two atomic operations in fast clones
Commit ce1a4ea3f125 ("net: avoid one atomic operation in skb_clone()")
took the wrong way to save one atomic operation.
It is actually possible to avoid two atomic operations, if we
do not change skb->fclone values, and only rely on clone_ref
content to signal if the clone is available or not.
skb_clone() can simply use the fast clone if clone_ref is 1.
kfree_skbmem() can avoid the atomic_dec_and_test() if clone_ref is 1.
Note that because we usually free the clone before the original skb,
this particular attempt is only done for the original skb to have better
branch prediction.
SKB_FCLONE_FREE is removed.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Chris Mason <clm@fb.com>
Cc: Sabrina Dubroca <sd@queasysnail.net>
Cc: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d1e2575000b9..e9281b5b7f59 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -344,7 +344,6 @@ enum {
SKB_FCLONE_UNAVAILABLE, /* skb has no fclone (from head_cache) */
SKB_FCLONE_ORIG, /* orig skb (from fclone_cache) */
SKB_FCLONE_CLONE, /* companion fclone skb (from fclone_cache) */
- SKB_FCLONE_FREE, /* this companion fclone skb is available */
};
enum {
@@ -818,7 +817,7 @@ static inline bool skb_fclone_busy(const struct sock *sk,
fclones = container_of(skb, struct sk_buff_fclones, skb1);
return skb->fclone == SKB_FCLONE_ORIG &&
- fclones->skb2.fclone == SKB_FCLONE_CLONE &&
+ atomic_read(&fclones->fclone_ref) > 1 &&
fclones->skb2.sk == sk;
}
--
cgit v1.2.1
From d71a6fc6b97fba1de999c6f0fab5c75544afab76 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 4 Dec 2014 19:31:45 +0200
Subject: virtio: drop legacy_only driver flag
legacy_only flag is now unused, drop it from core.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
include/linux/virtio.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index d666bcb57401..d09e0938fd60 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -134,7 +134,6 @@ int virtio_device_restore(struct virtio_device *dev);
* @feature_table_size: number of entries in the feature table array.
* @feature_table_legacy: same as feature_table but when working in legacy mode.
* @feature_table_size_legacy: number of entries in feature table legacy array.
- * @legacy_only: driver does not support virtio 1.0.
* @probe: the function to call when a device is found. Returns 0 or -errno.
* @remove: the function to call when a device is removed.
* @config_changed: optional function to call when the device configuration
@@ -147,7 +146,6 @@ struct virtio_driver {
unsigned int feature_table_size;
const unsigned int *feature_table_legacy;
unsigned int feature_table_size_legacy;
- bool legacy_only;
int (*probe)(struct virtio_device *dev);
void (*scan)(struct virtio_device *dev);
void (*remove)(struct virtio_device *dev);
--
cgit v1.2.1
From 57d743a3dec174b8f1fbf53e93ade2fea3d32bd7 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Thu, 4 Dec 2014 21:41:18 +0100
Subject: net: sched: cls: remove unused op put from tcf_proto_ops
It is never called and implementations are void. So just remove it.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/sch_generic.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index d17ed6fb2f70..3d282cbb66bf 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -219,7 +219,6 @@ struct tcf_proto_ops {
void (*destroy)(struct tcf_proto*);
unsigned long (*get)(struct tcf_proto*, u32 handle);
- void (*put)(struct tcf_proto*, unsigned long);
int (*change)(struct net *net, struct sk_buff *,
struct tcf_proto*, unsigned long,
u32 handle, struct nlattr **,
--
cgit v1.2.1
From 6e3a8a937c2f86ee0b2d354808fc026a143b4518 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 4 Dec 2014 16:13:23 -0800
Subject: tcp_cubic: add SNMP counters to track how effective is Hystart
When deploying FQ pacing, one thing we noticed is that CUBIC Hystart
triggers too soon.
Having SNMP counters to have an idea of how often the various Hystart
methods trigger is useful prior to any modifications.
This patch adds SNMP counters tracking, how many time "ack train" or
"Delay" based Hystart triggers, and cumulative sum of cwnd at the time
Hystart decided to end SS (Slow Start)
myhost:~# nstat -a | grep Hystart
TcpExtTCPHystartTrainDetect 9 0.0
TcpExtTCPHystartTrainCwnd 20650 0.0
TcpExtTCPHystartDelayDetect 10 0.0
TcpExtTCPHystartDelayCwnd 360 0.0
->
Train detection was triggered 9 times, and average cwnd was
20650/9=2294,
Delay detection was triggered 10 times and average cwnd was 36
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/snmp.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index 30f541b32895..b22224100011 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -266,6 +266,10 @@ enum
LINUX_MIB_TCPWANTZEROWINDOWADV, /* TCPWantZeroWindowAdv */
LINUX_MIB_TCPSYNRETRANS, /* TCPSynRetrans */
LINUX_MIB_TCPORIGDATASENT, /* TCPOrigDataSent */
+ LINUX_MIB_TCPHYSTARTTRAINDETECT, /* TCPHystartTrainDetect */
+ LINUX_MIB_TCPHYSTARTTRAINCWND, /* TCPHystartTrainCwnd */
+ LINUX_MIB_TCPHYSTARTDELAYDETECT, /* TCPHystartDelayDetect */
+ LINUX_MIB_TCPHYSTARTDELAYCWND, /* TCPHystartDelayCwnd */
__LINUX_MIB_MAX
};
--
cgit v1.2.1
From dbfc4fb7d578d4f224faa6b60deb40804dfdc1b1 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 6 Dec 2014 19:19:42 +0100
Subject: dst: no need to take reference on DST_NOCACHE dsts
Since commit f8864972126899 ("ipv4: fix dst race in sk_dst_get()")
DST_NOCACHE dst_entries get freed by RCU. So there is no need to get a
reference on them when we are in rcu protected sections.
Cc: Eric Dumazet <edumazet@google.com>
Cc: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Reviewed-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 23 ++---------------------
1 file changed, 2 insertions(+), 21 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index e9281b5b7f59..ef64cec42804 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -717,9 +717,6 @@ static inline void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)
skb->_skb_refdst = (unsigned long)dst;
}
-void __skb_dst_set_noref(struct sk_buff *skb, struct dst_entry *dst,
- bool force);
-
/**
* skb_dst_set_noref - sets skb dst, hopefully, without taking reference
* @skb: buffer
@@ -732,24 +729,8 @@ void __skb_dst_set_noref(struct sk_buff *skb, struct dst_entry *dst,
*/
static inline void skb_dst_set_noref(struct sk_buff *skb, struct dst_entry *dst)
{
- __skb_dst_set_noref(skb, dst, false);
-}
-
-/**
- * skb_dst_set_noref_force - sets skb dst, without taking reference
- * @skb: buffer
- * @dst: dst entry
- *
- * Sets skb dst, assuming a reference was not taken on dst.
- * No reference is taken and no dst_release will be called. While for
- * cached dsts deferred reclaim is a basic feature, for entries that are
- * not cached it is caller's job to guarantee that last dst_release for
- * provided dst happens when nobody uses it, eg. after a RCU grace period.
- */
-static inline void skb_dst_set_noref_force(struct sk_buff *skb,
- struct dst_entry *dst)
-{
- __skb_dst_set_noref(skb, dst, true);
+ WARN_ON(!rcu_read_lock_held() && !rcu_read_lock_bh_held());
+ skb->_skb_refdst = (unsigned long)dst | SKB_DST_NOREF;
}
/**
--
cgit v1.2.1
From 2f33e7d59cb09d9b20d6648086b314f0ba61fb03 Mon Sep 17 00:00:00 2001
From: Mahesh Bandewar <maheshb@google.com>
Date: Sat, 6 Dec 2014 15:53:04 -0800
Subject: netdevice: Add a function to check macvlan port
Similar to a check for macvlan device, netif_is_macvlan(), add
another function to check if a device is used as macvlan port.
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 29c92ee9ed56..1f49aac258f9 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3641,6 +3641,11 @@ static inline bool netif_is_macvlan(struct net_device *dev)
return dev->priv_flags & IFF_MACVLAN;
}
+static inline bool netif_is_macvlan_port(struct net_device *dev)
+{
+ return dev->priv_flags & IFF_MACVLAN_PORT;
+}
+
static inline bool netif_is_bond_master(struct net_device *dev)
{
return dev->flags & IFF_MASTER && dev->priv_flags & IFF_BONDING;
--
cgit v1.2.1
From 5933fea7aa7237ba52d67c069c39ad5c3ab7a036 Mon Sep 17 00:00:00 2001
From: Mahesh Bandewar <maheshb@google.com>
Date: Sat, 6 Dec 2014 15:53:33 -0800
Subject: ipvlan: move the device check function into netdevice.h
Move the port check [ipvlan_dev_master()] and device check
[ipvlan_dev_slave()] functions to netdevice.h and rename them
netif_is_ipvlan_port() and netif_is_ipvlan() resp. to be
consistent with macvlan api naming.
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1f49aac258f9..c31f74d76ebd 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3646,6 +3646,16 @@ static inline bool netif_is_macvlan_port(struct net_device *dev)
return dev->priv_flags & IFF_MACVLAN_PORT;
}
+static inline bool netif_is_ipvlan(struct net_device *dev)
+{
+ return dev->priv_flags & IFF_IPVLAN_SLAVE;
+}
+
+static inline bool netif_is_ipvlan_port(struct net_device *dev)
+{
+ return dev->priv_flags & IFF_IPVLAN_MASTER;
+}
+
static inline bool netif_is_bond_master(struct net_device *dev)
{
return dev->flags & IFF_MASTER && dev->priv_flags & IFF_BONDING;
--
cgit v1.2.1
From f69e6d131f5dac8278ac79a902cc448364880d8b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 13:23:40 -0500
Subject: ip_generic_getfrag, udplite_getfrag: switch to passing msghdr
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/net/udplite.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/udplite.h b/include/net/udplite.h
index 9a28a5179400..d5baaba65b46 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -19,7 +19,8 @@ extern struct udp_table udplite_table;
static __inline__ int udplite_getfrag(void *from, char *to, int offset,
int len, int odd, struct sk_buff *skb)
{
- return memcpy_fromiovecend(to, (struct iovec *) from, offset, len);
+ struct msghdr *msg = from;
+ return memcpy_fromiovecend(to, msg->msg_iov, offset, len);
}
/* Designate sk as UDP-Lite socket */
--
cgit v1.2.1
From f4362a2c9524678f0459cf410403f8595e5cfce5 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 13:26:06 -0500
Subject: switch tcp_sock->ucopy from iovec (ucopy.iov) to msghdr (ucopy.msg)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/tcp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index f566b8567892..5d9cc9cd2855 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -162,7 +162,7 @@ struct tcp_sock {
struct {
struct sk_buff_head prequeue;
struct task_struct *task;
- struct iovec *iov;
+ struct msghdr *msg;
int memory;
int len;
} ucopy;
--
cgit v1.2.1
From 56c39fb67cdb665ae67fba4975f5e20e6614cda6 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 16:44:09 -0500
Subject: switch l2cap ->memcpy_fromiovec() to msghdr
it'll die soon enough - now that kvec-backed iov_iter works regardless
of set_fs(), both instances will become copy_from_iter() as soon as
we introduce ->msg_iter...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/net/bluetooth/l2cap.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 061e648052c8..4e23674d3649 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -608,7 +608,7 @@ struct l2cap_ops {
unsigned long len, int nb);
int (*memcpy_fromiovec) (struct l2cap_chan *chan,
unsigned char *kdata,
- struct iovec *iov,
+ struct msghdr *msg,
int len);
};
@@ -905,13 +905,13 @@ static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan)
static inline int l2cap_chan_no_memcpy_fromiovec(struct l2cap_chan *chan,
unsigned char *kdata,
- struct iovec *iov,
+ struct msghdr *msg,
int len)
{
/* Following is safe since for compiler definitions of kvec and
* iovec are identical, yielding the same in-core layout and alignment
*/
- struct kvec *vec = (struct kvec *)iov;
+ struct kvec *vec = (struct kvec *)msg->msg_iov;
while (len > 0) {
if (vec->iov_len) {
--
cgit v1.2.1
From d838df2e5dcbb6ed4d82854869e9a30f9aeef6da Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 19:32:50 -0500
Subject: vmci: propagate msghdr all way down to __qp_memcpy_from_queue()
... and switch it to memcpy_to_msg()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/vmw_vmci_api.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/vmw_vmci_api.h b/include/linux/vmw_vmci_api.h
index 023430e265fe..5691f752ce8f 100644
--- a/include/linux/vmw_vmci_api.h
+++ b/include/linux/vmw_vmci_api.h
@@ -24,6 +24,7 @@
#define VMCI_KERNEL_API_VERSION_2 2
#define VMCI_KERNEL_API_VERSION VMCI_KERNEL_API_VERSION_2
+struct msghdr;
typedef void (vmci_device_shutdown_fn) (void *device_registration,
void *user_data);
@@ -75,8 +76,8 @@ ssize_t vmci_qpair_peek(struct vmci_qp *qpair, void *buf, size_t buf_size,
ssize_t vmci_qpair_enquev(struct vmci_qp *qpair,
void *iov, size_t iov_size, int mode);
ssize_t vmci_qpair_dequev(struct vmci_qp *qpair,
- void *iov, size_t iov_size, int mode);
-ssize_t vmci_qpair_peekv(struct vmci_qp *qpair, void *iov, size_t iov_size,
+ struct msghdr *msg, size_t iov_size, int mode);
+ssize_t vmci_qpair_peekv(struct vmci_qp *qpair, struct msghdr *msg, size_t iov_size,
int mode);
#endif /* !__VMW_VMCI_API_H__ */
--
cgit v1.2.1
From c0371da6047abd261bc483c744dbc7d81a116172 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 10:42:55 -0500
Subject: put iov_iter into msghdr
Note that the code _using_ ->msg_iter at that point will be very
unhappy with anything other than unshifted iovec-backed iov_iter.
We still need to convert users to proper primitives.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 16 ++++++++++------
include/linux/socket.h | 3 +--
include/net/bluetooth/l2cap.h | 2 +-
include/net/udplite.h | 3 ++-
4 files changed, 14 insertions(+), 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ef64cec42804..52cf1bdac0d8 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2646,22 +2646,24 @@ unsigned int datagram_poll(struct file *file, struct socket *sock,
struct poll_table_struct *wait);
int skb_copy_datagram_iovec(const struct sk_buff *from, int offset,
struct iovec *to, int size);
+int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
+ struct iov_iter *to, int size);
static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset,
struct msghdr *msg, int size)
{
- return skb_copy_datagram_iovec(from, offset, msg->msg_iov, size);
+ /* XXX: stripping const */
+ return skb_copy_datagram_iovec(from, offset, (struct iovec *)msg->msg_iter.iov, size);
}
int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb, int hlen,
struct iovec *iov);
static inline int skb_copy_and_csum_datagram_msg(struct sk_buff *skb, int hlen,
struct msghdr *msg)
{
- return skb_copy_and_csum_datagram_iovec(skb, hlen, msg->msg_iov);
+ /* XXX: stripping const */
+ return skb_copy_and_csum_datagram_iovec(skb, hlen, (struct iovec *)msg->msg_iter.iov);
}
int skb_copy_datagram_from_iter(struct sk_buff *skb, int offset,
struct iov_iter *from, int len);
-int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
- struct iov_iter *to, int size);
int zerocopy_sg_from_iter(struct sk_buff *skb, struct iov_iter *frm);
void skb_free_datagram(struct sock *sk, struct sk_buff *skb);
void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb);
@@ -2689,12 +2691,14 @@ int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
static inline int memcpy_from_msg(void *data, struct msghdr *msg, int len)
{
- return memcpy_fromiovec(data, msg->msg_iov, len);
+ /* XXX: stripping const */
+ return memcpy_fromiovec(data, (struct iovec *)msg->msg_iter.iov, len);
}
static inline int memcpy_to_msg(struct msghdr *msg, void *data, int len)
{
- return memcpy_toiovec(msg->msg_iov, data, len);
+ /* XXX: stripping const */
+ return memcpy_toiovec((struct iovec *)msg->msg_iter.iov, data, len);
}
struct skb_checksum_ops {
diff --git a/include/linux/socket.h b/include/linux/socket.h
index de5222832be4..048d6d6eed6d 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -47,8 +47,7 @@ struct linger {
struct msghdr {
void *msg_name; /* ptr to socket address structure */
int msg_namelen; /* size of socket address structure */
- struct iovec *msg_iov; /* scatter/gather array */
- __kernel_size_t msg_iovlen; /* # elements in msg_iov */
+ struct iov_iter msg_iter; /* data */
void *msg_control; /* ancillary data */
__kernel_size_t msg_controllen; /* ancillary data buffer length */
unsigned int msg_flags; /* flags on received message */
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 4e23674d3649..bca6fc0a3196 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -911,7 +911,7 @@ static inline int l2cap_chan_no_memcpy_fromiovec(struct l2cap_chan *chan,
/* Following is safe since for compiler definitions of kvec and
* iovec are identical, yielding the same in-core layout and alignment
*/
- struct kvec *vec = (struct kvec *)msg->msg_iov;
+ struct kvec *vec = (struct kvec *)msg->msg_iter.iov;
while (len > 0) {
if (vec->iov_len) {
diff --git a/include/net/udplite.h b/include/net/udplite.h
index d5baaba65b46..ae7c8d1fbcad 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -20,7 +20,8 @@ static __inline__ int udplite_getfrag(void *from, char *to, int offset,
int len, int odd, struct sk_buff *skb)
{
struct msghdr *msg = from;
- return memcpy_fromiovecend(to, msg->msg_iov, offset, len);
+ /* XXX: stripping const */
+ return memcpy_fromiovecend(to, (struct iovec *)msg->msg_iter.iov, offset, len);
}
/* Designate sk as UDP-Lite socket */
--
cgit v1.2.1
From 17836394e578b8d6475ecdb309ad1356bbcf37a2 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 17:07:38 -0500
Subject: first fruits - kill l2cap ->memcpy_fromiovec()
Just use copy_from_iter(). That's what this method is trying to do
in all cases, in a very convoluted fashion.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/net/bluetooth/l2cap.h | 29 -----------------------------
1 file changed, 29 deletions(-)
(limited to 'include')
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index bca6fc0a3196..692f786bebe2 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -606,10 +606,6 @@ struct l2cap_ops {
struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
unsigned long hdr_len,
unsigned long len, int nb);
- int (*memcpy_fromiovec) (struct l2cap_chan *chan,
- unsigned char *kdata,
- struct msghdr *msg,
- int len);
};
struct l2cap_conn {
@@ -903,31 +899,6 @@ static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan)
return 0;
}
-static inline int l2cap_chan_no_memcpy_fromiovec(struct l2cap_chan *chan,
- unsigned char *kdata,
- struct msghdr *msg,
- int len)
-{
- /* Following is safe since for compiler definitions of kvec and
- * iovec are identical, yielding the same in-core layout and alignment
- */
- struct kvec *vec = (struct kvec *)msg->msg_iter.iov;
-
- while (len > 0) {
- if (vec->iov_len) {
- int copy = min_t(unsigned int, len, vec->iov_len);
- memcpy(kdata, vec->iov_base, copy);
- len -= copy;
- kdata += copy;
- vec->iov_base += copy;
- vec->iov_len -= copy;
- }
- vec++;
- }
-
- return 0;
-}
-
extern bool disable_ertm;
int l2cap_init_sockets(void);
--
cgit v1.2.1
From e5a4b0bb803b39a36478451eae53a880d2663d5b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 18:17:55 -0500
Subject: switch memcpy_to_msg() and skb_copy{,_and_csum}_datagram_msg() to
primitives
... making both non-draining. That means that tcp_recvmsg() becomes
non-draining. And _that_ would break iscsit_do_rx_data() unless we
a) make sure tcp_recvmsg() is uniformly non-draining (it is)
b) make sure it copes with arbitrary (including shifted)
iov_iter (it does, all it uses is iov_iter primitives)
c) make iscsit_do_rx_data() initialize ->msg_iter only once.
Fortunately, (c) is doable with minimal work and we are rid of one
the two places where kernel send/recvmsg users would be unhappy with
non-draining behaviour.
Actually, that makes all but one of ->recvmsg() instances iov_iter-clean.
The exception is skcipher_recvmsg() and it also isn't hard to convert
to primitives (iov_iter_get_pages() is needed there). That'll wait
a bit - there's some interplay with ->sendmsg() path for that one.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 52cf1bdac0d8..4902f2df90c8 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2651,17 +2651,10 @@ int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset,
struct msghdr *msg, int size)
{
- /* XXX: stripping const */
- return skb_copy_datagram_iovec(from, offset, (struct iovec *)msg->msg_iter.iov, size);
-}
-int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb, int hlen,
- struct iovec *iov);
-static inline int skb_copy_and_csum_datagram_msg(struct sk_buff *skb, int hlen,
- struct msghdr *msg)
-{
- /* XXX: stripping const */
- return skb_copy_and_csum_datagram_iovec(skb, hlen, (struct iovec *)msg->msg_iter.iov);
+ return skb_copy_datagram_iter(from, offset, &msg->msg_iter, size);
}
+int skb_copy_and_csum_datagram_msg(struct sk_buff *skb, int hlen,
+ struct msghdr *msg);
int skb_copy_datagram_from_iter(struct sk_buff *skb, int offset,
struct iov_iter *from, int len);
int zerocopy_sg_from_iter(struct sk_buff *skb, struct iov_iter *frm);
@@ -2697,8 +2690,7 @@ static inline int memcpy_from_msg(void *data, struct msghdr *msg, int len)
static inline int memcpy_to_msg(struct msghdr *msg, void *data, int len)
{
- /* XXX: stripping const */
- return memcpy_toiovec((struct iovec *)msg->msg_iter.iov, data, len);
+ return copy_to_iter(data, len, &msg->msg_iter) == len ? 0 : -EFAULT;
}
struct skb_checksum_ops {
--
cgit v1.2.1
From d3a9632f09153bc46a8077844e05e179f1c10c3f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 18:29:54 -0500
Subject: skb_copy_datagram_iovec() can die
no callers other than itself.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/skbuff.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 4902f2df90c8..ab0bc43c82a4 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2644,8 +2644,6 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock,
int *err);
unsigned int datagram_poll(struct file *file, struct socket *sock,
struct poll_table_struct *wait);
-int skb_copy_datagram_iovec(const struct sk_buff *from, int offset,
- struct iovec *to, int size);
int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
struct iov_iter *to, int size);
static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset,
--
cgit v1.2.1
From 218321e7a0838c2be974539f0a5341b398d4432b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 24 Nov 2014 19:45:05 -0500
Subject: bury memcpy_toiovec()
no users left
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/uio.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/uio.h b/include/linux/uio.h
index bd8569a14c4a..a41e252396c0 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -131,7 +131,6 @@ size_t csum_and_copy_to_iter(void *addr, size_t bytes, __wsum *csum, struct iov_
size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i);
int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len);
-int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len);
int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov,
int offset, int len);
int memcpy_toiovecend(const struct iovec *v, unsigned char *kdata,
--
cgit v1.2.1
From 605ad7f184b60cfaacbc038aa6c55ee68dee3c89 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 7 Dec 2014 12:22:18 -0800
Subject: tcp: refine TSO autosizing
Commit 95bd09eb2750 ("tcp: TSO packets automatic sizing") tried to
control TSO size, but did this at the wrong place (sendmsg() time)
At sendmsg() time, we might have a pessimistic view of flow rate,
and we end up building very small skbs (with 2 MSS per skb).
This is bad because :
- It sends small TSO packets even in Slow Start where rate quickly
increases.
- It tends to make socket write queue very big, increasing tcp_ack()
processing time, but also increasing memory needs, not necessarily
accounted for, as fast clones overhead is currently ignored.
- Lower GRO efficiency and more ACK packets.
Servers with a lot of small lived connections suffer from this.
Lets instead fill skbs as much as possible (64KB of payload), but split
them at xmit time, when we have a precise idea of the flow rate.
skb split is actually quite efficient.
Patch looks bigger than necessary, because TCP Small Queue decision now
has to take place after the eventual split.
As Neal suggested, introduce a new tcp_tso_autosize() helper, so that
tcp_tso_should_defer() can be synchronized on same goal.
Rename tp->xmit_size_goal_segs to tp->gso_segs, as this variable
contains number of mss that we can put in GSO packet, and is not
related to the autosizing goal anymore.
Tested:
40 ms rtt link
nstat >/dev/null
netperf -H remote -l -2000000 -- -s 1000000
nstat | egrep "IpInReceives|IpOutRequests|TcpOutSegs|IpExtOutOctets"
Before patch :
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/s
87380 2000000 2000000 0.36 44.22
IpInReceives 600 0.0
IpOutRequests 599 0.0
TcpOutSegs 1397 0.0
IpExtOutOctets 2033249 0.0
After patch :
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 2000000 2000000 0.36 44.27
IpInReceives 221 0.0
IpOutRequests 232 0.0
TcpOutSegs 1397 0.0
IpExtOutOctets 2013953 0.0
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/tcp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index f566b8567892..3fa0a9669a3a 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -130,7 +130,7 @@ struct tcp_sock {
/* inet_connection_sock has to be the first member of tcp_sock */
struct inet_connection_sock inet_conn;
u16 tcp_header_len; /* Bytes of tcp header to send */
- u16 xmit_size_goal_segs; /* Goal for segmenting output packets */
+ u16 gso_segs; /* Max number of segs per GSO packet */
/*
* Header prediction flags
--
cgit v1.2.1
From 273d2c67c3e179adb1e74f403d1e9a06e3f841b5 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Fri, 5 Dec 2014 18:01:11 -0600
Subject: userns: Don't allow setgroups until a gid mapping has been
setablished
setgroups is unique in not needing a valid mapping before it can be called,
in the case of setgroups(0, NULL) which drops all supplemental groups.
The design of the user namespace assumes that CAP_SETGID can not actually
be used until a gid mapping is established. Therefore add a helper function
to see if the user namespace gid mapping has been established and call
that function in the setgroups permission check.
This is part of the fix for CVE-2014-8989, being able to drop groups
without privilege using user namespaces.
Cc: stable@vger.kernel.org
Reviewed-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
include/linux/user_namespace.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index e95372654f09..8d493083486a 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -63,6 +63,7 @@ extern const struct seq_operations proc_projid_seq_operations;
extern ssize_t proc_uid_map_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t proc_gid_map_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t proc_projid_map_write(struct file *, const char __user *, size_t, loff_t *);
+extern bool userns_may_setgroups(const struct user_namespace *ns);
#else
static inline struct user_namespace *get_user_ns(struct user_namespace *ns)
@@ -87,6 +88,10 @@ static inline void put_user_ns(struct user_namespace *ns)
{
}
+static inline bool userns_may_setgroups(const struct user_namespace *ns)
+{
+ return true;
+}
#endif
#endif /* _LINUX_USER_H */
--
cgit v1.2.1
From fc0bdbbc67c9f7307d41f415abb1165778fe803f Mon Sep 17 00:00:00 2001
From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Mon, 8 Dec 2014 14:04:19 -0800
Subject: bridge: new mode flag to indicate mode 'undefined'
This patch adds mode BRIDGE_MODE_UNDEF for cases where mode is not needed.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_bridge.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 296a556454e3..05f08695c6c9 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -106,6 +106,7 @@ struct __fdb_entry {
#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
#define BRIDGE_MODE_SWDEV 2 /* Full switch device offload */
+#define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */
/* Bridge management nested attributes
* [IFLA_AF_SPEC] = {
--
cgit v1.2.1
From 4a5fdfe8b3669070112105573f2d7c487ec7ad0d Mon Sep 17 00:00:00 2001
From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Mon, 8 Dec 2014 14:04:21 -0800
Subject: bridge: remove mode BRIDGE_MODE_SWDEV
This patch removes bridge mode swdev.
Users can use BRIDGE_FLAGS_SELF to indicate swdev offload
if needed.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_bridge.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 05f08695c6c9..b03ee8f62d3c 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -105,7 +105,6 @@ struct __fdb_entry {
#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
-#define BRIDGE_MODE_SWDEV 2 /* Full switch device offload */
#define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */
/* Bridge management nested attributes
--
cgit v1.2.1
From 8985f4ac1c42bd25799f294f4e87fa73064673c7 Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Tue, 9 Dec 2014 00:10:49 +0900
Subject: ALSA: oxfw: Add hwdep interface
This interface is designed for mixer/control application. By using this
interface, an application can get information about firewire node, can
lock/unlock kernel streaming and can get notification at starting/stopping
kernel streaming.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/uapi/sound/asound.h | 3 ++-
include/uapi/sound/firewire.h | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index 941d32f007dc..1f23cd635957 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -96,9 +96,10 @@ enum {
SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */
SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */
SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */
+ SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */
/* Don't forget to change the following: */
- SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_BEBOB
+ SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_OXFW
};
struct snd_hwdep_info {
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index af4bd136c75d..49122df3b56b 100644
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -55,7 +55,8 @@ union snd_firewire_event {
#define SNDRV_FIREWIRE_TYPE_DICE 1
#define SNDRV_FIREWIRE_TYPE_FIREWORKS 2
#define SNDRV_FIREWIRE_TYPE_BEBOB 3
-/* AV/C, RME, MOTU, ... */
+#define SNDRV_FIREWIRE_TYPE_OXFW 4
+/* RME, MOTU, ... */
struct snd_firewire_get_info {
unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
--
cgit v1.2.1
From a940cb34fed73b2d4809a4575f2981d5927e2c21 Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punit.agrawal@arm.com>
Date: Tue, 9 Dec 2014 12:22:01 +0000
Subject: thermal: Fix cdev registration with THERMAL_NO_LIMIT on 64bit
The size of unsigned long varies between 32 and 64 bit systems while
the size of phandle arguments is always 32 bits per parameter.
On 64-bit systems, cooling devices registered via of-thermal apis fail
to bind when the min/max cooling state is specified as
THERMAL_NO_LIMIT (-1UL) as there is a mis-match between the value read
from the device tree (32bit) and the pre-processor define (64bit).
As we're unlikely to need cooling states larger than 32 bits, and for
consistency with the size of phandle arguments, explicitly limit
THERMAL_NO_LIMIT to 32 bits.
Reported-by: Hyungwoo Yang <hwoo.yang@gmail.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/dt-bindings/thermal/thermal.h | 2 +-
include/linux/thermal.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/dt-bindings/thermal/thermal.h b/include/dt-bindings/thermal/thermal.h
index 59822a995858..b5e6b0069ac7 100644
--- a/include/dt-bindings/thermal/thermal.h
+++ b/include/dt-bindings/thermal/thermal.h
@@ -11,7 +11,7 @@
#define _DT_BINDINGS_THERMAL_THERMAL_H
/* On cooling devices upper and lower limits */
-#define THERMAL_NO_LIMIT (-1UL)
+#define THERMAL_NO_LIMIT (~0)
#endif
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index ef90838b36a0..005586fdf82d 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -38,7 +38,7 @@
#define THERMAL_CSTATE_INVALID -1UL
/* No upper/lower limit requirement */
-#define THERMAL_NO_LIMIT THERMAL_CSTATE_INVALID
+#define THERMAL_NO_LIMIT ((u32)~0)
/* Unit conversion macros */
#define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \
--
cgit v1.2.1
From ffde7328a36d16e626bae8468571858d71cd010b Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@redhat.com>
Date: Tue, 9 Dec 2014 19:40:42 -0800
Subject: net: Split netdev_alloc_frag into __alloc_page_frag and add
__napi_alloc_frag
This patch splits the netdev_alloc_frag function up so that it can be used
on one of two page frag pools instead of being fixed on the
netdev_alloc_cache. By doing this we can add a NAPI specific function
__napi_alloc_frag that accesses a pool that is only used from softirq
context. The advantage to this is that we do not need to call
local_irq_save/restore which can be a significant savings.
I also took the opportunity to refactor the core bits that were placed in
__alloc_page_frag. First I updated the allocation to do either a 32K
allocation or an order 0 page. This is based on the changes in commmit
d9b2938aa where it was found that latencies could be reduced in case of
failures. Then I also rewrote the logic to work from the end of the page to
the start. By doing this the size value doesn't have to be used unless we
have run out of space for page fragments. Finally I cleaned up the atomic
bits so that we just do an atomic_sub_and_test and if that returns true then
we set the page->_count via an atomic_set. This way we can remove the extra
conditional for the atomic_read since it would have led to an atomic_inc in
the case of success anyway.
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ab0bc43c82a4..736cc99f3f6c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2164,6 +2164,8 @@ static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,
return __netdev_alloc_skb_ip_align(dev, length, GFP_ATOMIC);
}
+void *napi_alloc_frag(unsigned int fragsz);
+
/**
* __dev_alloc_pages - allocate page for network Rx
* @gfp_mask: allocation priority. Set __GFP_NOMEMALLOC if not for network Rx
--
cgit v1.2.1
From fd11a83dd3630ec6a60f8a702446532c5c7e1991 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@redhat.com>
Date: Tue, 9 Dec 2014 19:40:49 -0800
Subject: net: Pull out core bits of __netdev_alloc_skb and add
__napi_alloc_skb
This change pulls the core functionality out of __netdev_alloc_skb and
places them in a new function named __alloc_rx_skb. The reason for doing
this is to make these bits accessible to a new function __napi_alloc_skb.
In addition __alloc_rx_skb now has a new flags value that is used to
determine which page frag pool to allocate from. If the SKB_ALLOC_NAPI
flag is set then the NAPI pool is used. The advantage of this is that we
do not have to use local_irq_save/restore when accessing the NAPI pool from
NAPI context.
In my test setup I saw at least 11ns of savings using the napi_alloc_skb
function versus the netdev_alloc_skb function, most of this being due to
the fact that we didn't have to call local_irq_save/restore.
The main use case for napi_alloc_skb would be for things such as copybreak
or page fragment based receive paths where an skb is allocated after the
data has been received instead of before.
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/skbuff.h | 9 +++++++++
1 file changed, 9 insertions(+)
(limited to 'include')
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 736cc99f3f6c..85ab7d72b54c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -151,6 +151,7 @@ struct net_device;
struct scatterlist;
struct pipe_inode_info;
struct iov_iter;
+struct napi_struct;
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
struct nf_conntrack {
@@ -673,6 +674,7 @@ struct sk_buff {
#define SKB_ALLOC_FCLONE 0x01
#define SKB_ALLOC_RX 0x02
+#define SKB_ALLOC_NAPI 0x04
/* Returns true if the skb was allocated from PFMEMALLOC reserves */
static inline bool skb_pfmemalloc(const struct sk_buff *skb)
@@ -2165,6 +2167,13 @@ static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,
}
void *napi_alloc_frag(unsigned int fragsz);
+struct sk_buff *__napi_alloc_skb(struct napi_struct *napi,
+ unsigned int length, gfp_t gfp_mask);
+static inline struct sk_buff *napi_alloc_skb(struct napi_struct *napi,
+ unsigned int length)
+{
+ return __napi_alloc_skb(napi, length, GFP_ATOMIC);
+}
/**
* __dev_alloc_pages - allocate page for network Rx
--
cgit v1.2.1
From 0cb6c969ed9de43687abdfc63714b6fe4385d2fc Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 10 Dec 2014 16:33:12 +0100
Subject: net, lib: kill arch_fast_hash library bits
As there are now no remaining users of arch_fast_hash(), lets kill
it entirely.
This basically reverts commit 71ae8aac3e19 ("lib: introduce arch
optimized hash library") and follow-up work, that is f.e., commit
237217546d44 ("lib: hash: follow-up fixups for arch hash"),
commit e3fec2f74f7f ("lib: Add missing arch generic-y entries for
asm-generic/hash.h") and last but not least commit 6a02652df511
("perf tools: Fix include for non x86 architectures").
Cc: Francesco Fusco <fusco@ntop.org>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/asm-generic/hash.h | 9 ---------
include/linux/hash.h | 35 -----------------------------------
2 files changed, 44 deletions(-)
delete mode 100644 include/asm-generic/hash.h
(limited to 'include')
diff --git a/include/asm-generic/hash.h b/include/asm-generic/hash.h
deleted file mode 100644
index b6312843dbd9..000000000000
--- a/include/asm-generic/hash.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef __ASM_GENERIC_HASH_H
-#define __ASM_GENERIC_HASH_H
-
-struct fast_hash_ops;
-static inline void setup_arch_fast_hash(struct fast_hash_ops *ops)
-{
-}
-
-#endif /* __ASM_GENERIC_HASH_H */
diff --git a/include/linux/hash.h b/include/linux/hash.h
index d0494c399392..1afde47e1528 100644
--- a/include/linux/hash.h
+++ b/include/linux/hash.h
@@ -15,7 +15,6 @@
*/
#include <asm/types.h>
-#include <asm/hash.h>
#include <linux/compiler.h>
/* 2^31 + 2^29 - 2^25 + 2^22 - 2^19 - 2^16 + 1 */
@@ -84,38 +83,4 @@ static inline u32 hash32_ptr(const void *ptr)
return (u32)val;
}
-struct fast_hash_ops {
- u32 (*hash)(const void *data, u32 len, u32 seed);
- u32 (*hash2)(const u32 *data, u32 len, u32 seed);
-};
-
-/**
- * arch_fast_hash - Caclulates a hash over a given buffer that can have
- * arbitrary size. This function will eventually use an
- * architecture-optimized hashing implementation if
- * available, and trades off distribution for speed.
- *
- * @data: buffer to hash
- * @len: length of buffer in bytes
- * @seed: start seed
- *
- * Returns 32bit hash.
- */
-extern u32 arch_fast_hash(const void *data, u32 len, u32 seed);
-
-/**
- * arch_fast_hash2 - Caclulates a hash over a given buffer that has a
- * size that is of a multiple of 32bit words. This
- * function will eventually use an architecture-
- * optimized hashing implementation if available,
- * and trades off distribution for speed.
- *
- * @data: buffer to hash (must be 32bit padded)
- * @len: number of 32bit words
- * @seed: start seed
- *
- * Returns 32bit hash.
- */
-extern u32 arch_fast_hash2(const u32 *data, u32 len, u32 seed);
-
#endif /* _LINUX_HASH_H */
--
cgit v1.2.1
From 14b7d95fd2288524c71aac48f3f7309fa6afa853 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 10 Dec 2014 08:18:50 -0800
Subject: llc: Make function pointer arrays const
It's better when function pointer arrays aren't modifiable.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/llc_c_st.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
index 0e79cfba4b3b..60e2ebb1d9b1 100644
--- a/include/net/llc_c_st.h
+++ b/include/net/llc_c_st.h
@@ -36,7 +36,7 @@ struct llc_conn_state_trans {
llc_conn_ev_t ev;
u8 next_state;
llc_conn_ev_qfyr_t *ev_qualifiers;
- llc_conn_action_t *ev_actions;
+ const llc_conn_action_t *ev_actions;
};
struct llc_conn_state {
--
cgit v1.2.1
From 9b373069350d747c4e7ad7ea59f0fa348e860383 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 10 Dec 2014 09:43:57 -0800
Subject: llc: Make llc_conn_ev_qfyr_t function pointer arrays const
It's better when function pointer arrays aren't modifiable.
Net change from original:
$ size net/llc/built-in.o.*
text data bss dec hex filename
61065 12886 1344 75295 1261f net/llc/built-in.o.new
47113 27030 1344 75487 126df net/llc/built-in.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/llc_c_st.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
index 60e2ebb1d9b1..48f3f891b2f9 100644
--- a/include/net/llc_c_st.h
+++ b/include/net/llc_c_st.h
@@ -35,7 +35,7 @@
struct llc_conn_state_trans {
llc_conn_ev_t ev;
u8 next_state;
- llc_conn_ev_qfyr_t *ev_qualifiers;
+ const llc_conn_ev_qfyr_t *ev_qualifiers;
const llc_conn_action_t *ev_actions;
};
--
cgit v1.2.1
From 22bbf5f3e4e4db4a94f18d7b1ba21b5bd5fd934b Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 10 Dec 2014 09:55:50 -0800
Subject: llc: Make llc_sap_action_t function pointer arrays const
It's better when function pointer arrays aren't modifiable.
Net change:
$ size net/llc/built-in.o.*
text data bss dec hex filename
61193 12758 1344 75295 1261f net/llc/built-in.o.new
47113 27030 1344 75487 126df net/llc/built-in.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/llc_s_st.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/net/llc_s_st.h b/include/net/llc_s_st.h
index 567c681f1f3e..c4359e203013 100644
--- a/include/net/llc_s_st.h
+++ b/include/net/llc_s_st.h
@@ -19,7 +19,7 @@
struct llc_sap_state_trans {
llc_sap_ev_t ev;
u8 next_state;
- llc_sap_action_t *ev_actions;
+ const llc_sap_action_t *ev_actions;
};
struct llc_sap_state {
--
cgit v1.2.1
From 785c20a08bead1e58ad53f2dc324782da7a0c9ea Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 10 Dec 2014 10:28:58 -0800
Subject: irda: Convert function pointer arrays and uses to const
Making things const is a good thing.
(x86-64 defconfig with all irda)
$ size net/irda/built-in.o*
text data bss dec hex filename
109276 1868 244 111388 1b31c net/irda/built-in.o.new
108828 2316 244 111388 1b31c net/irda/built-in.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/irda/parameters.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/net/irda/parameters.h b/include/net/irda/parameters.h
index 42713c931d1f..2d9cd0007cba 100644
--- a/include/net/irda/parameters.h
+++ b/include/net/irda/parameters.h
@@ -71,17 +71,17 @@ typedef int (*PV_HANDLER)(void *self, __u8 *buf, int len, __u8 pi,
PV_TYPE type, PI_HANDLER func);
typedef struct {
- PI_HANDLER func; /* Handler for this parameter identifier */
+ const PI_HANDLER func; /* Handler for this parameter identifier */
PV_TYPE type; /* Data type for this parameter */
} pi_minor_info_t;
typedef struct {
- pi_minor_info_t *pi_minor_call_table;
+ const pi_minor_info_t *pi_minor_call_table;
int len;
} pi_major_info_t;
typedef struct {
- pi_major_info_t *tables;
+ const pi_major_info_t *tables;
int len;
__u8 pi_mask;
int pi_major_offset;
--
cgit v1.2.1
From 3e32cb2e0a12b6915056ff04601cf1bb9b44f967 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:42:31 -0800
Subject: mm: memcontrol: lockless page counters
Memory is internally accounted in bytes, using spinlock-protected 64-bit
counters, even though the smallest accounting delta is a page. The
counter interface is also convoluted and does too many things.
Introduce a new lockless word-sized page counter API, then change all
memory accounting over to it. The translation from and to bytes then only
happens when interfacing with userspace.
The removed locking overhead is noticable when scaling beyond the per-cpu
charge caches - on a 4-socket machine with 144-threads, the following test
shows the performance differences of 288 memcgs concurrently running a
page fault benchmark:
vanilla:
18631648.500498 task-clock (msec) # 140.643 CPUs utilized ( +- 0.33% )
1,380,638 context-switches # 0.074 K/sec ( +- 0.75% )
24,390 cpu-migrations # 0.001 K/sec ( +- 8.44% )
1,843,305,768 page-faults # 0.099 M/sec ( +- 0.00% )
50,134,994,088,218 cycles # 2.691 GHz ( +- 0.33% )
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
8,049,712,224,651 instructions # 0.16 insns per cycle ( +- 0.04% )
1,586,970,584,979 branches # 85.176 M/sec ( +- 0.05% )
1,724,989,949 branch-misses # 0.11% of all branches ( +- 0.48% )
132.474343877 seconds time elapsed ( +- 0.21% )
lockless:
12195979.037525 task-clock (msec) # 133.480 CPUs utilized ( +- 0.18% )
832,850 context-switches # 0.068 K/sec ( +- 0.54% )
15,624 cpu-migrations # 0.001 K/sec ( +- 10.17% )
1,843,304,774 page-faults # 0.151 M/sec ( +- 0.00% )
32,811,216,801,141 cycles # 2.690 GHz ( +- 0.18% )
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
9,999,265,091,727 instructions # 0.30 insns per cycle ( +- 0.10% )
2,076,759,325,203 branches # 170.282 M/sec ( +- 0.12% )
1,656,917,214 branch-misses # 0.08% of all branches ( +- 0.55% )
91.369330729 seconds time elapsed ( +- 0.45% )
On top of improved scalability, this also gets rid of the icky long long
types in the very heart of memcg, which is great for 32 bit and also makes
the code a lot more readable.
Notable differences between the old and new API:
- res_counter_charge() and res_counter_charge_nofail() become
page_counter_try_charge() and page_counter_charge() resp. to match
the more common kernel naming scheme of try_do()/do()
- res_counter_uncharge_until() is only ever used to cancel a local
counter and never to uncharge bigger segments of a hierarchy, so
it's replaced by the simpler page_counter_cancel()
- res_counter_set_limit() is replaced by page_counter_limit(), which
expects its callers to serialize against themselves
- res_counter_memparse_write_strategy() is replaced by
page_counter_limit(), which rounds down to the nearest page size -
rather than up. This is more reasonable for explicitely requested
hard upper limits.
- to keep charging light-weight, page_counter_try_charge() charges
speculatively, only to roll back if the result exceeds the limit.
Because of this, a failing bigger charge can temporarily lock out
smaller charges that would otherwise succeed. The error is bounded
to the difference between the smallest and the biggest possible
charge size, so for memcg, this means that a failing THP charge can
send base page charges into reclaim upto 2MB (4MB) before the limit
would have been reached. This should be acceptable.
[akpm@linux-foundation.org: add includes for WARN_ON_ONCE and memparse]
[akpm@linux-foundation.org: add includes for WARN_ON_ONCE, memparse, strncmp, and PAGE_SIZE]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 5 ++---
include/linux/page_counter.h | 51 ++++++++++++++++++++++++++++++++++++++++++++
include/net/sock.h | 26 ++++++++--------------
3 files changed, 62 insertions(+), 20 deletions(-)
create mode 100644 include/linux/page_counter.h
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 6b75640ef5ab..ea007615e8f9 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -447,9 +447,8 @@ memcg_kmem_newpage_charge(gfp_t gfp, struct mem_cgroup **memcg, int order)
/*
* __GFP_NOFAIL allocations will move on even if charging is not
* possible. Therefore we don't even try, and have this allocation
- * unaccounted. We could in theory charge it with
- * res_counter_charge_nofail, but we hope those allocations are rare,
- * and won't be worth the trouble.
+ * unaccounted. We could in theory charge it forcibly, but we hope
+ * those allocations are rare, and won't be worth the trouble.
*/
if (gfp & __GFP_NOFAIL)
return true;
diff --git a/include/linux/page_counter.h b/include/linux/page_counter.h
new file mode 100644
index 000000000000..7cce3be99ff3
--- /dev/null
+++ b/include/linux/page_counter.h
@@ -0,0 +1,51 @@
+#ifndef _LINUX_PAGE_COUNTER_H
+#define _LINUX_PAGE_COUNTER_H
+
+#include <linux/atomic.h>
+#include <linux/kernel.h>
+#include <asm/page.h>
+
+struct page_counter {
+ atomic_long_t count;
+ unsigned long limit;
+ struct page_counter *parent;
+
+ /* legacy */
+ unsigned long watermark;
+ unsigned long failcnt;
+};
+
+#if BITS_PER_LONG == 32
+#define PAGE_COUNTER_MAX LONG_MAX
+#else
+#define PAGE_COUNTER_MAX (LONG_MAX / PAGE_SIZE)
+#endif
+
+static inline void page_counter_init(struct page_counter *counter,
+ struct page_counter *parent)
+{
+ atomic_long_set(&counter->count, 0);
+ counter->limit = PAGE_COUNTER_MAX;
+ counter->parent = parent;
+}
+
+static inline unsigned long page_counter_read(struct page_counter *counter)
+{
+ return atomic_long_read(&counter->count);
+}
+
+int page_counter_cancel(struct page_counter *counter, unsigned long nr_pages);
+void page_counter_charge(struct page_counter *counter, unsigned long nr_pages);
+int page_counter_try_charge(struct page_counter *counter,
+ unsigned long nr_pages,
+ struct page_counter **fail);
+int page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
+int page_counter_limit(struct page_counter *counter, unsigned long limit);
+int page_counter_memparse(const char *buf, unsigned long *nr_pages);
+
+static inline void page_counter_reset_watermark(struct page_counter *counter)
+{
+ counter->watermark = page_counter_read(counter);
+}
+
+#endif /* _LINUX_PAGE_COUNTER_H */
diff --git a/include/net/sock.h b/include/net/sock.h
index e6f235ebf6c9..7ff44e062a38 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -54,8 +54,8 @@
#include <linux/security.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
+#include <linux/page_counter.h>
#include <linux/memcontrol.h>
-#include <linux/res_counter.h>
#include <linux/static_key.h>
#include <linux/aio.h>
#include <linux/sched.h>
@@ -1062,7 +1062,7 @@ enum cg_proto_flags {
};
struct cg_proto {
- struct res_counter memory_allocated; /* Current allocated memory. */
+ struct page_counter memory_allocated; /* Current allocated memory. */
struct percpu_counter sockets_allocated; /* Current number of sockets. */
int memory_pressure;
long sysctl_mem[3];
@@ -1214,34 +1214,26 @@ static inline void memcg_memory_allocated_add(struct cg_proto *prot,
unsigned long amt,
int *parent_status)
{
- struct res_counter *fail;
- int ret;
+ page_counter_charge(&prot->memory_allocated, amt);
- ret = res_counter_charge_nofail(&prot->memory_allocated,
- amt << PAGE_SHIFT, &fail);
- if (ret < 0)
+ if (page_counter_read(&prot->memory_allocated) >
+ prot->memory_allocated.limit)
*parent_status = OVER_LIMIT;
}
static inline void memcg_memory_allocated_sub(struct cg_proto *prot,
unsigned long amt)
{
- res_counter_uncharge(&prot->memory_allocated, amt << PAGE_SHIFT);
-}
-
-static inline u64 memcg_memory_allocated_read(struct cg_proto *prot)
-{
- u64 ret;
- ret = res_counter_read_u64(&prot->memory_allocated, RES_USAGE);
- return ret >> PAGE_SHIFT;
+ page_counter_uncharge(&prot->memory_allocated, amt);
}
static inline long
sk_memory_allocated(const struct sock *sk)
{
struct proto *prot = sk->sk_prot;
+
if (mem_cgroup_sockets_enabled && sk->sk_cgrp)
- return memcg_memory_allocated_read(sk->sk_cgrp);
+ return page_counter_read(&sk->sk_cgrp->memory_allocated);
return atomic_long_read(prot->memory_allocated);
}
@@ -1255,7 +1247,7 @@ sk_memory_allocated_add(struct sock *sk, int amt, int *parent_status)
memcg_memory_allocated_add(sk->sk_cgrp, amt, parent_status);
/* update the root cgroup regardless */
atomic_long_add_return(amt, prot->memory_allocated);
- return memcg_memory_allocated_read(sk->sk_cgrp);
+ return page_counter_read(&sk->sk_cgrp->memory_allocated);
}
return atomic_long_add_return(amt, prot->memory_allocated);
--
cgit v1.2.1
From 71f87bee38edddb21d97895fa938744cf3f477bb Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:42:34 -0800
Subject: mm: hugetlb_cgroup: convert to lockless page counters
Abandon the spinlock-protected byte counters in favor of the unlocked
page counters in the hugetlb controller as well.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/hugetlb_cgroup.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/hugetlb_cgroup.h b/include/linux/hugetlb_cgroup.h
index 0129f89cf98d..bcc853eccc85 100644
--- a/include/linux/hugetlb_cgroup.h
+++ b/include/linux/hugetlb_cgroup.h
@@ -16,7 +16,6 @@
#define _LINUX_HUGETLB_CGROUP_H
#include <linux/mmdebug.h>
-#include <linux/res_counter.h>
struct hugetlb_cgroup;
/*
--
cgit v1.2.1
From 5b1efc027c0b51ca3e76f4e00c83358f8349f543 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:42:37 -0800
Subject: kernel: res_counter: remove the unused API
All memory accounting and limiting has been switched over to the
lockless page counters. Bye, res_counter!
[akpm@linux-foundation.org: update Documentation/cgroups/memory.txt]
[mhocko@suse.cz: ditch the last remainings of res_counter]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/res_counter.h | 223 --------------------------------------------
1 file changed, 223 deletions(-)
delete mode 100644 include/linux/res_counter.h
(limited to 'include')
diff --git a/include/linux/res_counter.h b/include/linux/res_counter.h
deleted file mode 100644
index 56b7bc32db4f..000000000000
--- a/include/linux/res_counter.h
+++ /dev/null
@@ -1,223 +0,0 @@
-#ifndef __RES_COUNTER_H__
-#define __RES_COUNTER_H__
-
-/*
- * Resource Counters
- * Contain common data types and routines for resource accounting
- *
- * Copyright 2007 OpenVZ SWsoft Inc
- *
- * Author: Pavel Emelianov <xemul@openvz.org>
- *
- * See Documentation/cgroups/resource_counter.txt for more
- * info about what this counter is.
- */
-
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-
-/*
- * The core object. the cgroup that wishes to account for some
- * resource may include this counter into its structures and use
- * the helpers described beyond
- */
-
-struct res_counter {
- /*
- * the current resource consumption level
- */
- unsigned long long usage;
- /*
- * the maximal value of the usage from the counter creation
- */
- unsigned long long max_usage;
- /*
- * the limit that usage cannot exceed
- */
- unsigned long long limit;
- /*
- * the limit that usage can be exceed
- */
- unsigned long long soft_limit;
- /*
- * the number of unsuccessful attempts to consume the resource
- */
- unsigned long long failcnt;
- /*
- * the lock to protect all of the above.
- * the routines below consider this to be IRQ-safe
- */
- spinlock_t lock;
- /*
- * Parent counter, used for hierarchial resource accounting
- */
- struct res_counter *parent;
-};
-
-#define RES_COUNTER_MAX ULLONG_MAX
-
-/**
- * Helpers to interact with userspace
- * res_counter_read_u64() - returns the value of the specified member.
- * res_counter_read/_write - put/get the specified fields from the
- * res_counter struct to/from the user
- *
- * @counter: the counter in question
- * @member: the field to work with (see RES_xxx below)
- * @buf: the buffer to opeate on,...
- * @nbytes: its size...
- * @pos: and the offset.
- */
-
-u64 res_counter_read_u64(struct res_counter *counter, int member);
-
-ssize_t res_counter_read(struct res_counter *counter, int member,
- const char __user *buf, size_t nbytes, loff_t *pos,
- int (*read_strategy)(unsigned long long val, char *s));
-
-int res_counter_memparse_write_strategy(const char *buf,
- unsigned long long *res);
-
-/*
- * the field descriptors. one for each member of res_counter
- */
-
-enum {
- RES_USAGE,
- RES_MAX_USAGE,
- RES_LIMIT,
- RES_FAILCNT,
- RES_SOFT_LIMIT,
-};
-
-/*
- * helpers for accounting
- */
-
-void res_counter_init(struct res_counter *counter, struct res_counter *parent);
-
-/*
- * charge - try to consume more resource.
- *
- * @counter: the counter
- * @val: the amount of the resource. each controller defines its own
- * units, e.g. numbers, bytes, Kbytes, etc
- *
- * returns 0 on success and <0 if the counter->usage will exceed the
- * counter->limit
- *
- * charge_nofail works the same, except that it charges the resource
- * counter unconditionally, and returns < 0 if the after the current
- * charge we are over limit.
- */
-
-int __must_check res_counter_charge(struct res_counter *counter,
- unsigned long val, struct res_counter **limit_fail_at);
-int res_counter_charge_nofail(struct res_counter *counter,
- unsigned long val, struct res_counter **limit_fail_at);
-
-/*
- * uncharge - tell that some portion of the resource is released
- *
- * @counter: the counter
- * @val: the amount of the resource
- *
- * these calls check for usage underflow and show a warning on the console
- *
- * returns the total charges still present in @counter.
- */
-
-u64 res_counter_uncharge(struct res_counter *counter, unsigned long val);
-
-u64 res_counter_uncharge_until(struct res_counter *counter,
- struct res_counter *top,
- unsigned long val);
-/**
- * res_counter_margin - calculate chargeable space of a counter
- * @cnt: the counter
- *
- * Returns the difference between the hard limit and the current usage
- * of resource counter @cnt.
- */
-static inline unsigned long long res_counter_margin(struct res_counter *cnt)
-{
- unsigned long long margin;
- unsigned long flags;
-
- spin_lock_irqsave(&cnt->lock, flags);
- if (cnt->limit > cnt->usage)
- margin = cnt->limit - cnt->usage;
- else
- margin = 0;
- spin_unlock_irqrestore(&cnt->lock, flags);
- return margin;
-}
-
-/**
- * Get the difference between the usage and the soft limit
- * @cnt: The counter
- *
- * Returns 0 if usage is less than or equal to soft limit
- * The difference between usage and soft limit, otherwise.
- */
-static inline unsigned long long
-res_counter_soft_limit_excess(struct res_counter *cnt)
-{
- unsigned long long excess;
- unsigned long flags;
-
- spin_lock_irqsave(&cnt->lock, flags);
- if (cnt->usage <= cnt->soft_limit)
- excess = 0;
- else
- excess = cnt->usage - cnt->soft_limit;
- spin_unlock_irqrestore(&cnt->lock, flags);
- return excess;
-}
-
-static inline void res_counter_reset_max(struct res_counter *cnt)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cnt->lock, flags);
- cnt->max_usage = cnt->usage;
- spin_unlock_irqrestore(&cnt->lock, flags);
-}
-
-static inline void res_counter_reset_failcnt(struct res_counter *cnt)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cnt->lock, flags);
- cnt->failcnt = 0;
- spin_unlock_irqrestore(&cnt->lock, flags);
-}
-
-static inline int res_counter_set_limit(struct res_counter *cnt,
- unsigned long long limit)
-{
- unsigned long flags;
- int ret = -EBUSY;
-
- spin_lock_irqsave(&cnt->lock, flags);
- if (cnt->usage <= limit) {
- cnt->limit = limit;
- ret = 0;
- }
- spin_unlock_irqrestore(&cnt->lock, flags);
- return ret;
-}
-
-static inline int
-res_counter_set_soft_limit(struct res_counter *cnt,
- unsigned long long soft_limit)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cnt->lock, flags);
- cnt->soft_limit = soft_limit;
- spin_unlock_irqrestore(&cnt->lock, flags);
- return 0;
-}
-
-#endif
--
cgit v1.2.1
From e8ea14cc6eadfe2ea63e9989e16e62625a2619f8 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:42:42 -0800
Subject: mm: memcontrol: take a css reference for each charged page
Charges currently pin the css indirectly by playing tricks during
css_offline(): user pages stall the offlining process until all of them
have been reparented, whereas kmemcg acquires a keep-alive reference if
outstanding kernel pages are detected at that point.
In preparation for removing all this complexity, make the pinning explicit
and acquire a css references for every charged page.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/cgroup.h | 26 +++++++++++++++++++++++
include/linux/percpu-refcount.h | 47 +++++++++++++++++++++++++++++++++--------
2 files changed, 64 insertions(+), 9 deletions(-)
(limited to 'include')
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 1d5196889048..9f96b25965c2 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -112,6 +112,19 @@ static inline void css_get(struct cgroup_subsys_state *css)
percpu_ref_get(&css->refcnt);
}
+/**
+ * css_get_many - obtain references on the specified css
+ * @css: target css
+ * @n: number of references to get
+ *
+ * The caller must already have a reference.
+ */
+static inline void css_get_many(struct cgroup_subsys_state *css, unsigned int n)
+{
+ if (!(css->flags & CSS_NO_REF))
+ percpu_ref_get_many(&css->refcnt, n);
+}
+
/**
* css_tryget - try to obtain a reference on the specified css
* @css: target css
@@ -159,6 +172,19 @@ static inline void css_put(struct cgroup_subsys_state *css)
percpu_ref_put(&css->refcnt);
}
+/**
+ * css_put_many - put css references
+ * @css: target css
+ * @n: number of references to put
+ *
+ * Put references obtained via css_get() and css_tryget_online().
+ */
+static inline void css_put_many(struct cgroup_subsys_state *css, unsigned int n)
+{
+ if (!(css->flags & CSS_NO_REF))
+ percpu_ref_put_many(&css->refcnt, n);
+}
+
/* bits in struct cgroup flags field */
enum {
/* Control Group requires release notifications to userspace */
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 51ce60c35f4c..530b249f7ea4 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -147,27 +147,41 @@ static inline bool __ref_is_percpu(struct percpu_ref *ref,
}
/**
- * percpu_ref_get - increment a percpu refcount
+ * percpu_ref_get_many - increment a percpu refcount
* @ref: percpu_ref to get
+ * @nr: number of references to get
*
- * Analagous to atomic_long_inc().
+ * Analogous to atomic_long_add().
*
* This function is safe to call as long as @ref is between init and exit.
*/
-static inline void percpu_ref_get(struct percpu_ref *ref)
+static inline void percpu_ref_get_many(struct percpu_ref *ref, unsigned long nr)
{
unsigned long __percpu *percpu_count;
rcu_read_lock_sched();
if (__ref_is_percpu(ref, &percpu_count))
- this_cpu_inc(*percpu_count);
+ this_cpu_add(*percpu_count, nr);
else
- atomic_long_inc(&ref->count);
+ atomic_long_add(nr, &ref->count);
rcu_read_unlock_sched();
}
+/**
+ * percpu_ref_get - increment a percpu refcount
+ * @ref: percpu_ref to get
+ *
+ * Analagous to atomic_long_inc().
+ *
+ * This function is safe to call as long as @ref is between init and exit.
+ */
+static inline void percpu_ref_get(struct percpu_ref *ref)
+{
+ percpu_ref_get_many(ref, 1);
+}
+
/**
* percpu_ref_tryget - try to increment a percpu refcount
* @ref: percpu_ref to try-get
@@ -231,28 +245,43 @@ static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
}
/**
- * percpu_ref_put - decrement a percpu refcount
+ * percpu_ref_put_many - decrement a percpu refcount
* @ref: percpu_ref to put
+ * @nr: number of references to put
*
* Decrement the refcount, and if 0, call the release function (which was passed
* to percpu_ref_init())
*
* This function is safe to call as long as @ref is between init and exit.
*/
-static inline void percpu_ref_put(struct percpu_ref *ref)
+static inline void percpu_ref_put_many(struct percpu_ref *ref, unsigned long nr)
{
unsigned long __percpu *percpu_count;
rcu_read_lock_sched();
if (__ref_is_percpu(ref, &percpu_count))
- this_cpu_dec(*percpu_count);
- else if (unlikely(atomic_long_dec_and_test(&ref->count)))
+ this_cpu_sub(*percpu_count, nr);
+ else if (unlikely(atomic_long_sub_and_test(nr, &ref->count)))
ref->release(ref);
rcu_read_unlock_sched();
}
+/**
+ * percpu_ref_put - decrement a percpu refcount
+ * @ref: percpu_ref to put
+ *
+ * Decrement the refcount, and if 0, call the release function (which was passed
+ * to percpu_ref_init())
+ *
+ * This function is safe to call as long as @ref is between init and exit.
+ */
+static inline void percpu_ref_put(struct percpu_ref *ref)
+{
+ percpu_ref_put_many(ref, 1);
+}
+
/**
* percpu_ref_is_zero - test whether a percpu refcount reached zero
* @ref: percpu_ref to test
--
cgit v1.2.1
From 64f2199389414341ed3a570663f23616c131ba25 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:42:45 -0800
Subject: mm: memcontrol: remove obsolete kmemcg pinning tricks
As charges now pin the css explicitely, there is no more need for kmemcg
to acquire a proxy reference for outstanding pages during offlining, or
maintain state to identify such "dead" groups.
This was the last user of the uncharge functions' return values, so remove
them as well.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/page_counter.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/page_counter.h b/include/linux/page_counter.h
index 7cce3be99ff3..955421575d16 100644
--- a/include/linux/page_counter.h
+++ b/include/linux/page_counter.h
@@ -34,12 +34,12 @@ static inline unsigned long page_counter_read(struct page_counter *counter)
return atomic_long_read(&counter->count);
}
-int page_counter_cancel(struct page_counter *counter, unsigned long nr_pages);
+void page_counter_cancel(struct page_counter *counter, unsigned long nr_pages);
void page_counter_charge(struct page_counter *counter, unsigned long nr_pages);
int page_counter_try_charge(struct page_counter *counter,
unsigned long nr_pages,
struct page_counter **fail);
-int page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
+void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
int page_counter_limit(struct page_counter *counter, unsigned long limit);
int page_counter_memparse(const char *buf, unsigned long *nr_pages);
--
cgit v1.2.1
From 93481ff0e5a0c7636359a7ee52248856da5e7859 Mon Sep 17 00:00:00 2001
From: Vlastimil Babka <vbabka@suse.cz>
Date: Wed, 10 Dec 2014 15:43:01 -0800
Subject: mm: introduce single zone pcplists drain
The functions for draining per-cpu pages back to buddy allocators
currently always operate on all zones. There are however several cases
where the drain is only needed in the context of a single zone, and
spilling other pcplists is a waste of time both due to the extra
spilling and later refilling.
This patch introduces new zone pointer parameter to drain_all_pages()
and changes the dummy parameter of drain_local_pages() to be also a zone
pointer. When NULL is passed, the functions operate on all zones as
usual. Passing a specific zone pointer reduces the work to the single
zone.
All callers are updated to pass the NULL pointer in this patch.
Conversion to single zone (where appropriate) is done in further
patches.
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/gfp.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 41b30fd4d041..07d2699cdb51 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -381,8 +381,8 @@ extern void free_kmem_pages(unsigned long addr, unsigned int order);
void page_alloc_init(void);
void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp);
-void drain_all_pages(void);
-void drain_local_pages(void *dummy);
+void drain_all_pages(struct zone *zone);
+void drain_local_pages(struct zone *zone);
/*
* gfp_allowed_mask is set to GFP_BOOT_MASK during early boot to restrict what
--
cgit v1.2.1
From ebff398017c69a3810bcbc5200ba224d5ccaa207 Mon Sep 17 00:00:00 2001
From: Vlastimil Babka <vbabka@suse.cz>
Date: Wed, 10 Dec 2014 15:43:22 -0800
Subject: mm, compaction: pass classzone_idx and alloc_flags to watermark
checking
Compaction relies on zone watermark checks for decisions such as if it's
worth to start compacting in compaction_suitable() or whether compaction
should stop in compact_finished(). The watermark checks take
classzone_idx and alloc_flags parameters, which are related to the memory
allocation request. But from the context of compaction they are currently
passed as 0, including the direct compaction which is invoked to satisfy
the allocation request, and could therefore know the proper values.
The lack of proper values can lead to mismatch between decisions taken
during compaction and decisions related to the allocation request. Lack
of proper classzone_idx value means that lowmem_reserve is not taken into
account. This has manifested (during recent changes to deferred
compaction) when DMA zone was used as fallback for preferred Normal zone.
compaction_suitable() without proper classzone_idx would think that the
watermarks are already satisfied, but watermark check in
get_page_from_freelist() would fail. Because of this problem, deferring
compaction has extra complexity that can be removed in the following
patch.
The issue (not confirmed in practice) with missing alloc_flags is opposite
in nature. For allocations that include ALLOC_HIGH, ALLOC_HIGHER or
ALLOC_CMA in alloc_flags (the last includes all MOVABLE allocations on
CMA-enabled systems) the watermark checking in compaction with 0 passed
will be stricter than in get_page_from_freelist(). In these cases
compaction might be running for a longer time than is really needed.
Another issue compaction_suitable() is that the check for "does the zone
need compaction at all?" comes only after the check "does the zone have
enough free free pages to succeed compaction". The latter considers extra
pages for migration and can therefore in some situations fail and return
COMPACT_SKIPPED, although the high-order allocation would succeed and we
should return COMPACT_PARTIAL.
This patch fixes these problems by adding alloc_flags and classzone_idx to
struct compact_control and related functions involved in direct compaction
and watermark checking. Where possible, all other callers of
compaction_suitable() pass proper values where those are known. This is
currently limited to classzone_idx, which is sometimes known in kswapd
context. However, the direct reclaim callers should_continue_reclaim()
and compaction_ready() do not currently know the proper values, so the
coordination between reclaim and compaction may still not be as accurate
as it could. This can be fixed later, if it's shown to be an issue.
Additionaly the checks in compact_suitable() are reordered to address the
second issue described above.
The effect of this patch should be slightly better high-order allocation
success rates and/or less compaction overhead, depending on the type of
allocations and presence of CMA. It allows simplifying deferred
compaction code in a followup patch.
When testing with stress-highalloc, there was some slight improvement
(which might be just due to variance) in success rates of non-THP-like
allocations.
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Christoph Lameter <cl@linux.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/compaction.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index 60bdf8dc02a3..d896765a15b0 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -33,10 +33,12 @@ extern int fragmentation_index(struct zone *zone, unsigned int order);
extern unsigned long try_to_compact_pages(struct zonelist *zonelist,
int order, gfp_t gfp_mask, nodemask_t *mask,
enum migrate_mode mode, int *contended,
+ int alloc_flags, int classzone_idx,
struct zone **candidate_zone);
extern void compact_pgdat(pg_data_t *pgdat, int order);
extern void reset_isolation_suitable(pg_data_t *pgdat);
-extern unsigned long compaction_suitable(struct zone *zone, int order);
+extern unsigned long compaction_suitable(struct zone *zone, int order,
+ int alloc_flags, int classzone_idx);
/* Do not skip compaction more than 64 times */
#define COMPACT_MAX_DEFER_SHIFT 6
@@ -103,6 +105,7 @@ static inline bool compaction_restarting(struct zone *zone, int order)
static inline unsigned long try_to_compact_pages(struct zonelist *zonelist,
int order, gfp_t gfp_mask, nodemask_t *nodemask,
enum migrate_mode mode, int *contended,
+ int alloc_flags, int classzone_idx,
struct zone **candidate_zone)
{
return COMPACT_CONTINUE;
@@ -116,7 +119,8 @@ static inline void reset_isolation_suitable(pg_data_t *pgdat)
{
}
-static inline unsigned long compaction_suitable(struct zone *zone, int order)
+static inline unsigned long compaction_suitable(struct zone *zone, int order,
+ int alloc_flags, int classzone_idx)
{
return COMPACT_SKIPPED;
}
--
cgit v1.2.1
From 97d47a65be1e513edd02325ae828c9997878b578 Mon Sep 17 00:00:00 2001
From: Vlastimil Babka <vbabka@suse.cz>
Date: Wed, 10 Dec 2014 15:43:25 -0800
Subject: mm, compaction: simplify deferred compaction
Since commit 53853e2d2bfb ("mm, compaction: defer each zone individually
instead of preferred zone"), compaction is deferred for each zone where
sync direct compaction fails, and reset where it succeeds. However, it
was observed that for DMA zone compaction often appeared to succeed
while subsequent allocation attempt would not, due to different outcome
of watermark check.
In order to properly defer compaction in this zone, the candidate zone
has to be passed back to __alloc_pages_direct_compact() and compaction
deferred in the zone after the allocation attempt fails.
The large source of mismatch between watermark check in compaction and
allocation was the lack of alloc_flags and classzone_idx values in
compaction, which has been fixed in the previous patch. So with this
problem fixed, we can simplify the code by removing the candidate_zone
parameter and deferring in __alloc_pages_direct_compact().
After this patch, the compaction activity during stress-highalloc
benchmark is still somewhat increased, but it's negligible compared to the
increase that occurred without the better watermark checking. This
suggests that it is still possible to apparently succeed in compaction but
fail to allocate, possibly due to parallel allocation activity.
[akpm@linux-foundation.org: fix build]
Suggested-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/compaction.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index d896765a15b0..3238ffa33f68 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -33,8 +33,7 @@ extern int fragmentation_index(struct zone *zone, unsigned int order);
extern unsigned long try_to_compact_pages(struct zonelist *zonelist,
int order, gfp_t gfp_mask, nodemask_t *mask,
enum migrate_mode mode, int *contended,
- int alloc_flags, int classzone_idx,
- struct zone **candidate_zone);
+ int alloc_flags, int classzone_idx);
extern void compact_pgdat(pg_data_t *pgdat, int order);
extern void reset_isolation_suitable(pg_data_t *pgdat);
extern unsigned long compaction_suitable(struct zone *zone, int order,
@@ -105,8 +104,7 @@ static inline bool compaction_restarting(struct zone *zone, int order)
static inline unsigned long try_to_compact_pages(struct zonelist *zonelist,
int order, gfp_t gfp_mask, nodemask_t *nodemask,
enum migrate_mode mode, int *contended,
- int alloc_flags, int classzone_idx,
- struct zone **candidate_zone)
+ int alloc_flags, int classzone_idx)
{
return COMPACT_CONTINUE;
}
--
cgit v1.2.1
From 18eca2e636f921e6350dc31b5b450bb4102d664f Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:43:57 -0800
Subject: mm: memcontrol: remove unnecessary PCG_MEMSW memory+swap charge flag
Now that mem_cgroup_swapout() fully uncharges the page, every page that is
still in use when reaching mem_cgroup_uncharge() is known to carry both
the memory and the memory+swap charge. Simplify the uncharge path and
remove the PCG_MEMSW page flag accordingly.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/page_cgroup.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index 5c831f1eca79..da62ee2be28b 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -5,7 +5,6 @@ enum {
/* flags for mem_cgroup */
PCG_USED = 0x01, /* This page is charged to a memcg */
PCG_MEM = 0x02, /* This page holds a memory charge */
- PCG_MEMSW = 0x04, /* This page holds a memory+swap charge */
};
struct pglist_data;
--
cgit v1.2.1
From f4aaa8b43d90294ca7546317997c452600e9a8a7 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:44:00 -0800
Subject: mm: memcontrol: remove unnecessary PCG_MEM memory charge flag
PCG_MEM is a remnant from an earlier version of 0a31bc97c80c ("mm:
memcontrol: rewrite uncharge API"), used to tell whether migration cleared
a charge while leaving pc->mem_cgroup valid and PCG_USED set. But in the
final version, mem_cgroup_migrate() directly uncharges the source page,
rendering this distinction unnecessary. Remove it.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/page_cgroup.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index da62ee2be28b..97536e685843 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -4,7 +4,6 @@
enum {
/* flags for mem_cgroup */
PCG_USED = 0x01, /* This page is charged to a memcg */
- PCG_MEM = 0x02, /* This page holds a memory charge */
};
struct pglist_data;
--
cgit v1.2.1
From 2983331575bfb248abfb02efb5140b4a299e3f45 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:44:02 -0800
Subject: mm: memcontrol: remove unnecessary PCG_USED pc->mem_cgroup valid flag
pc->mem_cgroup had to be left intact after uncharge for the final LRU
removal, and !PCG_USED indicated whether the page was uncharged. But
since commit 0a31bc97c80c ("mm: memcontrol: rewrite uncharge API") pages
are uncharged after the final LRU removal. Uncharge can simply clear
the pointer and the PCG_USED/PageCgroupUsed sites can test that instead.
Because this is the last page_cgroup flag, this patch reduces the memcg
per-page overhead to a single pointer.
[akpm@linux-foundation.org: remove unneeded initialization of `memcg', per Michal]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/page_cgroup.h | 10 ----------
1 file changed, 10 deletions(-)
(limited to 'include')
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index 97536e685843..1289be6b436c 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -1,11 +1,6 @@
#ifndef __LINUX_PAGE_CGROUP_H
#define __LINUX_PAGE_CGROUP_H
-enum {
- /* flags for mem_cgroup */
- PCG_USED = 0x01, /* This page is charged to a memcg */
-};
-
struct pglist_data;
#ifdef CONFIG_MEMCG
@@ -19,7 +14,6 @@ struct mem_cgroup;
* then the page cgroup for pfn always exists.
*/
struct page_cgroup {
- unsigned long flags;
struct mem_cgroup *mem_cgroup;
};
@@ -39,10 +33,6 @@ static inline void page_cgroup_init(void)
struct page_cgroup *lookup_page_cgroup(struct page *page);
-static inline int PageCgroupUsed(struct page_cgroup *pc)
-{
- return !!(pc->flags & PCG_USED);
-}
#else /* !CONFIG_MEMCG */
struct page_cgroup;
--
cgit v1.2.1
From 97ad2be1daf8e6f2d297aa349101b340e1327917 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Wed, 10 Dec 2014 15:44:13 -0800
Subject: mm, hugetlb: correct bit shift in hstate_sizelog()
hstate_sizelog() would shift left an int rather than long, triggering
undefined behaviour and passing an incorrect value when the requested
page size was more than 4GB, thus breaking >4GB pages.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Andrey Ryabinin <a.ryabinin@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/hugetlb.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 6e6d338641fe..cdd149ca5cc0 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -311,7 +311,8 @@ static inline struct hstate *hstate_sizelog(int page_size_log)
{
if (!page_size_log)
return &default_hstate;
- return size_to_hstate(1 << page_size_log);
+
+ return size_to_hstate(1UL << page_size_log);
}
static inline struct hstate *hstate_vma(struct vm_area_struct *vma)
--
cgit v1.2.1
From b047501cd9f11d5e1d54ea0f90e2b10754021a0e Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@parallels.com>
Date: Wed, 10 Dec 2014 15:44:19 -0800
Subject: memcg: use generic slab iterators for showing slabinfo
Let's use generic slab_start/next/stop for showing memcg caches info. In
contrast to the current implementation, this will work even if all memcg
caches' info doesn't fit into a seq buffer (a page), plus it simply looks
neater.
Actually, the main reason I do this isn't mere cleanup. I'm going to zap
the memcg_slab_caches list, because I find it useless provided we have the
slab_caches list, and this patch is a step in this direction.
It should be noted that before this patch an attempt to read
memory.kmem.slabinfo of a cgroup that doesn't have kmem limit set resulted
in -EIO, while after this patch it will silently show nothing except the
header, but I don't think it will frustrate anyone.
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/slab.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/slab.h b/include/linux/slab.h
index c265bec6a57d..8a2457d42fc8 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -513,10 +513,6 @@ struct memcg_cache_params {
int memcg_update_all_caches(int num_memcgs);
-struct seq_file;
-int cache_show(struct kmem_cache *s, struct seq_file *m);
-void print_slabinfo_header(struct seq_file *m);
-
/**
* kmalloc_array - allocate memory for an array.
* @n: number of elements.
--
cgit v1.2.1
From 413918bb61b4fa027baa3e79546c47f15e4b9ea8 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:44:30 -0800
Subject: mm: memcontrol: pull the NULL check from
__mem_cgroup_same_or_subtree()
The NULL in mm_match_cgroup() comes from a possibly exiting mm->owner. It
makes a lot more sense to check where it's looked up, rather than check
for it in __mem_cgroup_same_or_subtree() where it's unexpected.
No other callsite passes NULL to __mem_cgroup_same_or_subtree().
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index ea007615e8f9..e32ab948f589 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -83,11 +83,12 @@ static inline
bool mm_match_cgroup(const struct mm_struct *mm, const struct mem_cgroup *memcg)
{
struct mem_cgroup *task_memcg;
- bool match;
+ bool match = false;
rcu_read_lock();
task_memcg = mem_cgroup_from_task(rcu_dereference(mm->owner));
- match = __mem_cgroup_same_or_subtree(memcg, task_memcg);
+ if (task_memcg)
+ match = __mem_cgroup_same_or_subtree(memcg, task_memcg);
rcu_read_unlock();
return match;
}
--
cgit v1.2.1
From 2314b42db67be30b747122d65c6cd2c85da34538 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:44:33 -0800
Subject: mm: memcontrol: drop bogus RCU locking from
mem_cgroup_same_or_subtree()
None of the mem_cgroup_same_or_subtree() callers actually require it to
take the RCU lock, either because they hold it themselves or they have css
references. Remove it.
To make the API change clear, rename the leftover helper to
mem_cgroup_is_descendant() to match cgroup_is_descendant().
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index e32ab948f589..d4575a1d6e99 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -68,10 +68,9 @@ void mem_cgroup_migrate(struct page *oldpage, struct page *newpage,
struct lruvec *mem_cgroup_zone_lruvec(struct zone *, struct mem_cgroup *);
struct lruvec *mem_cgroup_page_lruvec(struct page *, struct zone *);
-bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
- struct mem_cgroup *memcg);
-bool task_in_mem_cgroup(struct task_struct *task,
- const struct mem_cgroup *memcg);
+bool mem_cgroup_is_descendant(struct mem_cgroup *memcg,
+ struct mem_cgroup *root);
+bool task_in_mem_cgroup(struct task_struct *task, struct mem_cgroup *memcg);
extern struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page);
extern struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);
@@ -79,8 +78,8 @@ extern struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);
extern struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg);
extern struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *css);
-static inline
-bool mm_match_cgroup(const struct mm_struct *mm, const struct mem_cgroup *memcg)
+static inline bool mm_match_cgroup(struct mm_struct *mm,
+ struct mem_cgroup *memcg)
{
struct mem_cgroup *task_memcg;
bool match = false;
@@ -88,7 +87,7 @@ bool mm_match_cgroup(const struct mm_struct *mm, const struct mem_cgroup *memcg)
rcu_read_lock();
task_memcg = mem_cgroup_from_task(rcu_dereference(mm->owner));
if (task_memcg)
- match = __mem_cgroup_same_or_subtree(memcg, task_memcg);
+ match = mem_cgroup_is_descendant(task_memcg, memcg);
rcu_read_unlock();
return match;
}
--
cgit v1.2.1
From e4bd6a0248b2a026e07c19995c41a4cb5a49d797 Mon Sep 17 00:00:00 2001
From: Michal Hocko <mhocko@suse.cz>
Date: Wed, 10 Dec 2014 15:44:39 -0800
Subject: mm, memcg: fix potential undefined behaviour in page stat accounting
Since commit d7365e783edb ("mm: memcontrol: fix missed end-writeback
page accounting") mem_cgroup_end_page_stat consumes locked and flags
variables directly rather than via pointers which might trigger C
undefined behavior as those variables are initialized only in the slow
path of mem_cgroup_begin_page_stat.
Although mem_cgroup_end_page_stat handles parameters correctly and
touches them only when they hold a sensible value it is caller which
loads a potentially uninitialized value which then might allow compiler
to do crazy things.
I haven't seen any warning from gcc and it seems that the current
version (4.9) doesn't exploit this type undefined behavior but Sasha has
reported the following:
UBSan: Undefined behaviour in mm/rmap.c:1084:2
load of value 255 is not a valid value for type '_Bool'
CPU: 4 PID: 8304 Comm: rngd Not tainted 3.18.0-rc2-next-20141029-sasha-00039-g77ed13d-dirty #1427
Call Trace:
dump_stack (lib/dump_stack.c:52)
ubsan_epilogue (lib/ubsan.c:159)
__ubsan_handle_load_invalid_value (lib/ubsan.c:482)
page_remove_rmap (mm/rmap.c:1084 mm/rmap.c:1096)
unmap_page_range (./arch/x86/include/asm/atomic.h:27 include/linux/mm.h:463 mm/memory.c:1146 mm/memory.c:1258 mm/memory.c:1279 mm/memory.c:1303)
unmap_single_vma (mm/memory.c:1348)
unmap_vmas (mm/memory.c:1377 (discriminator 3))
exit_mmap (mm/mmap.c:2837)
mmput (kernel/fork.c:659)
do_exit (./arch/x86/include/asm/thread_info.h:168 kernel/exit.c:462 kernel/exit.c:747)
do_group_exit (include/linux/sched.h:775 kernel/exit.c:873)
SyS_exit_group (kernel/exit.c:901)
tracesys_phase2 (arch/x86/kernel/entry_64.S:529)
Fix this by using pointer parameters for both locked and flags and be
more robust for future compiler changes even though the current code is
implemented correctly.
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index d4575a1d6e99..de018766be45 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -141,8 +141,8 @@ static inline bool mem_cgroup_disabled(void)
struct mem_cgroup *mem_cgroup_begin_page_stat(struct page *page, bool *locked,
unsigned long *flags);
-void mem_cgroup_end_page_stat(struct mem_cgroup *memcg, bool locked,
- unsigned long flags);
+void mem_cgroup_end_page_stat(struct mem_cgroup *memcg, bool *locked,
+ unsigned long *flags);
void mem_cgroup_update_page_stat(struct mem_cgroup *memcg,
enum mem_cgroup_stat_index idx, int val);
@@ -297,7 +297,7 @@ static inline struct mem_cgroup *mem_cgroup_begin_page_stat(struct page *page,
}
static inline void mem_cgroup_end_page_stat(struct mem_cgroup *memcg,
- bool locked, unsigned long flags)
+ bool *locked, unsigned long *flags)
{
}
--
cgit v1.2.1
From 1306a85aed3ec3db98945aafb7dfbe5648a1203c Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:44:52 -0800
Subject: mm: embed the memcg pointer directly into struct page
Memory cgroups used to have 5 per-page pointers. To allow users to
disable that amount of overhead during runtime, those pointers were
allocated in a separate array, with a translation layer between them and
struct page.
There is now only one page pointer remaining: the memcg pointer, that
indicates which cgroup the page is associated with when charged. The
complexity of runtime allocation and the runtime translation overhead is
no longer justified to save that *potential* 0.19% of memory. With
CONFIG_SLUB, page->mem_cgroup actually sits in the doubleword padding
after the page->private member and doesn't even increase struct page,
and then this patch actually saves space. Remaining users that care can
still compile their kernels without CONFIG_MEMCG.
text data bss dec hex filename
8828345 1725264 983040 11536649 b00909 vmlinux.old
8827425 1725264 966656 11519345 afc571 vmlinux.new
[mhocko@suse.cz: update Documentation/cgroups/memory.txt]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Konstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 6 +----
include/linux/mm_types.h | 5 +++++
include/linux/mmzone.h | 12 ----------
include/linux/page_cgroup.h | 53 ---------------------------------------------
4 files changed, 6 insertions(+), 70 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index de018766be45..c4d080875164 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -25,7 +25,6 @@
#include <linux/jump_label.h>
struct mem_cgroup;
-struct page_cgroup;
struct page;
struct mm_struct;
struct kmem_cache;
@@ -466,8 +465,6 @@ memcg_kmem_newpage_charge(gfp_t gfp, struct mem_cgroup **memcg, int order)
* memcg_kmem_uncharge_pages: uncharge pages from memcg
* @page: pointer to struct page being freed
* @order: allocation order.
- *
- * there is no need to specify memcg here, since it is embedded in page_cgroup
*/
static inline void
memcg_kmem_uncharge_pages(struct page *page, int order)
@@ -484,8 +481,7 @@ memcg_kmem_uncharge_pages(struct page *page, int order)
*
* Needs to be called after memcg_kmem_newpage_charge, regardless of success or
* failure of the allocation. if @page is NULL, this function will revert the
- * charges. Otherwise, it will commit the memcg given by @memcg to the
- * corresponding page_cgroup.
+ * charges. Otherwise, it will commit @page to @memcg.
*/
static inline void
memcg_kmem_commit_charge(struct page *page, struct mem_cgroup *memcg, int order)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 004e9d17b47e..bf9f57529dcf 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -22,6 +22,7 @@
#define AT_VECTOR_SIZE (2*(AT_VECTOR_SIZE_ARCH + AT_VECTOR_SIZE_BASE + 1))
struct address_space;
+struct mem_cgroup;
#define USE_SPLIT_PTE_PTLOCKS (NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
#define USE_SPLIT_PMD_PTLOCKS (USE_SPLIT_PTE_PTLOCKS && \
@@ -167,6 +168,10 @@ struct page {
struct page *first_page; /* Compound tail pages */
};
+#ifdef CONFIG_MEMCG
+ struct mem_cgroup *mem_cgroup;
+#endif
+
/*
* On machines where all RAM is mapped into kernel address space,
* we can simply calculate the virtual address. On machines with
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index ffe66e381c04..3879d7664dfc 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -722,9 +722,6 @@ typedef struct pglist_data {
int nr_zones;
#ifdef CONFIG_FLAT_NODE_MEM_MAP /* means !SPARSEMEM */
struct page *node_mem_map;
-#ifdef CONFIG_MEMCG
- struct page_cgroup *node_page_cgroup;
-#endif
#endif
#ifndef CONFIG_NO_BOOTMEM
struct bootmem_data *bdata;
@@ -1078,7 +1075,6 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn)
#define SECTION_ALIGN_DOWN(pfn) ((pfn) & PAGE_SECTION_MASK)
struct page;
-struct page_cgroup;
struct mem_section {
/*
* This is, logically, a pointer to an array of struct
@@ -1096,14 +1092,6 @@ struct mem_section {
/* See declaration of similar field in struct zone */
unsigned long *pageblock_flags;
-#ifdef CONFIG_MEMCG
- /*
- * If !SPARSEMEM, pgdat doesn't have page_cgroup pointer. We use
- * section. (see memcontrol.h/page_cgroup.h about this.)
- */
- struct page_cgroup *page_cgroup;
- unsigned long pad;
-#endif
/*
* WARNING: mem_section must be a power-of-2 in size for the
* calculation and use of SECTION_ROOT_MASK to make sense.
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index 1289be6b436c..65be35785c86 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -1,59 +1,6 @@
#ifndef __LINUX_PAGE_CGROUP_H
#define __LINUX_PAGE_CGROUP_H
-struct pglist_data;
-
-#ifdef CONFIG_MEMCG
-struct mem_cgroup;
-
-/*
- * Page Cgroup can be considered as an extended mem_map.
- * A page_cgroup page is associated with every page descriptor. The
- * page_cgroup helps us identify information about the cgroup
- * All page cgroups are allocated at boot or memory hotplug event,
- * then the page cgroup for pfn always exists.
- */
-struct page_cgroup {
- struct mem_cgroup *mem_cgroup;
-};
-
-extern void pgdat_page_cgroup_init(struct pglist_data *pgdat);
-
-#ifdef CONFIG_SPARSEMEM
-static inline void page_cgroup_init_flatmem(void)
-{
-}
-extern void page_cgroup_init(void);
-#else
-extern void page_cgroup_init_flatmem(void);
-static inline void page_cgroup_init(void)
-{
-}
-#endif
-
-struct page_cgroup *lookup_page_cgroup(struct page *page);
-
-#else /* !CONFIG_MEMCG */
-struct page_cgroup;
-
-static inline void pgdat_page_cgroup_init(struct pglist_data *pgdat)
-{
-}
-
-static inline struct page_cgroup *lookup_page_cgroup(struct page *page)
-{
- return NULL;
-}
-
-static inline void page_cgroup_init(void)
-{
-}
-
-static inline void page_cgroup_init_flatmem(void)
-{
-}
-#endif /* CONFIG_MEMCG */
-
#include <linux/swap.h>
#ifdef CONFIG_MEMCG_SWAP
--
cgit v1.2.1
From 5d1ea48bdde67898e87d6d8f511fd097fa64c749 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:44:55 -0800
Subject: mm: page_cgroup: rename file to mm/swap_cgroup.c
Now that the external page_cgroup data structure and its lookup is gone,
the only code remaining in there is swap slot accounting.
Rename it and move the conditional compilation into mm/Makefile.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Tejun Heo <tj@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/page_cgroup.h | 40 ----------------------------------------
include/linux/swap_cgroup.h | 42 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+), 40 deletions(-)
delete mode 100644 include/linux/page_cgroup.h
create mode 100644 include/linux/swap_cgroup.h
(limited to 'include')
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
deleted file mode 100644
index 65be35785c86..000000000000
--- a/include/linux/page_cgroup.h
+++ /dev/null
@@ -1,40 +0,0 @@
-#ifndef __LINUX_PAGE_CGROUP_H
-#define __LINUX_PAGE_CGROUP_H
-
-#include <linux/swap.h>
-
-#ifdef CONFIG_MEMCG_SWAP
-extern unsigned short swap_cgroup_cmpxchg(swp_entry_t ent,
- unsigned short old, unsigned short new);
-extern unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id);
-extern unsigned short lookup_swap_cgroup_id(swp_entry_t ent);
-extern int swap_cgroup_swapon(int type, unsigned long max_pages);
-extern void swap_cgroup_swapoff(int type);
-#else
-
-static inline
-unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id)
-{
- return 0;
-}
-
-static inline
-unsigned short lookup_swap_cgroup_id(swp_entry_t ent)
-{
- return 0;
-}
-
-static inline int
-swap_cgroup_swapon(int type, unsigned long max_pages)
-{
- return 0;
-}
-
-static inline void swap_cgroup_swapoff(int type)
-{
- return;
-}
-
-#endif /* CONFIG_MEMCG_SWAP */
-
-#endif /* __LINUX_PAGE_CGROUP_H */
diff --git a/include/linux/swap_cgroup.h b/include/linux/swap_cgroup.h
new file mode 100644
index 000000000000..145306bdc92f
--- /dev/null
+++ b/include/linux/swap_cgroup.h
@@ -0,0 +1,42 @@
+#ifndef __LINUX_SWAP_CGROUP_H
+#define __LINUX_SWAP_CGROUP_H
+
+#include <linux/swap.h>
+
+#ifdef CONFIG_MEMCG_SWAP
+
+extern unsigned short swap_cgroup_cmpxchg(swp_entry_t ent,
+ unsigned short old, unsigned short new);
+extern unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id);
+extern unsigned short lookup_swap_cgroup_id(swp_entry_t ent);
+extern int swap_cgroup_swapon(int type, unsigned long max_pages);
+extern void swap_cgroup_swapoff(int type);
+
+#else
+
+static inline
+unsigned short swap_cgroup_record(swp_entry_t ent, unsigned short id)
+{
+ return 0;
+}
+
+static inline
+unsigned short lookup_swap_cgroup_id(swp_entry_t ent)
+{
+ return 0;
+}
+
+static inline int
+swap_cgroup_swapon(int type, unsigned long max_pages)
+{
+ return 0;
+}
+
+static inline void swap_cgroup_swapoff(int type)
+{
+ return;
+}
+
+#endif /* CONFIG_MEMCG_SWAP */
+
+#endif /* __LINUX_SWAP_CGROUP_H */
--
cgit v1.2.1
From 9edad6ea0f1416415f6fe31cc9d1dbc3817803ed Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Wed, 10 Dec 2014 15:44:58 -0800
Subject: mm: move page->mem_cgroup bad page handling into generic code
Now that the external page_cgroup data structure and its lookup is
gone, let the generic bad_page() check for page->mem_cgroup sanity.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Tejun Heo <tj@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 17 -----------------
1 file changed, 17 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index c4d080875164..6ea9f919e888 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -173,10 +173,6 @@ static inline void mem_cgroup_count_vm_event(struct mm_struct *mm,
void mem_cgroup_split_huge_fixup(struct page *head);
#endif
-#ifdef CONFIG_DEBUG_VM
-bool mem_cgroup_bad_page_check(struct page *page);
-void mem_cgroup_print_bad_page(struct page *page);
-#endif
#else /* CONFIG_MEMCG */
struct mem_cgroup;
@@ -346,19 +342,6 @@ void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx)
}
#endif /* CONFIG_MEMCG */
-#if !defined(CONFIG_MEMCG) || !defined(CONFIG_DEBUG_VM)
-static inline bool
-mem_cgroup_bad_page_check(struct page *page)
-{
- return false;
-}
-
-static inline void
-mem_cgroup_print_bad_page(struct page *page)
-{
-}
-#endif
-
enum {
UNDER_LIMIT,
SOFT_LIMIT,
--
cgit v1.2.1
From 7c8bd2322c7fd973d089b27de55e29c92c667a06 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 10 Dec 2014 15:45:33 -0800
Subject: exit: ptrace: shift "reap dead" code from exit_ptrace() to
forget_original_parent()
Now that forget_original_parent() uses ->ptrace_entry for EXIT_DEAD tasks,
we can simply pass "dead_children" list to exit_ptrace() and remove
another release_task() loop. Plus this way we do not need to drop and
reacquire tasklist_lock.
Also shift the list_empty(ptraced) check, if we want this optimization it
makes sense to eliminate the function call altogether.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Aaron Tomlin <atomlin@redhat.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Cc: Sterling Alexander <stalexan@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Roland McGrath <roland@hack.frob.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/ptrace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index cc79eff4a1ad..987a73a40ef8 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -52,7 +52,7 @@ extern void ptrace_notify(int exit_code);
extern void __ptrace_link(struct task_struct *child,
struct task_struct *new_parent);
extern void __ptrace_unlink(struct task_struct *child);
-extern void exit_ptrace(struct task_struct *tracer);
+extern void exit_ptrace(struct task_struct *tracer, struct list_head *dead);
#define PTRACE_MODE_READ 0x01
#define PTRACE_MODE_ATTACH 0x02
#define PTRACE_MODE_NOAUDIT 0x04
--
cgit v1.2.1
From f938612dd97d481b8b5bf960c992ae577f081c17 Mon Sep 17 00:00:00 2001
From: Yann Droneaud <ydroneaud@opteya.com>
Date: Wed, 10 Dec 2014 15:45:47 -0800
Subject: include/linux/file.h: remove get_unused_fd() macro
Macro get_unused_fd() is used to allocate a file descriptor with default
flags. Those default flags (0) don't enable close-on-exec.
This can be seen as an unsafe default: in most case close-on-exec should
be enabled to not leak file descriptor across exec().
It would be better to have a "safer" default set of flags, eg. O_CLOEXEC
must be used to enable close-on-exec.
Instead this patch removes get_unused_fd() so that out of tree modules
won't be affect by a runtime behavor change which might introduce other
kind of bugs: it's better to catch the change at build time, making it
easier to fix.
Removing the macro will also promote use of get_unused_fd_flags() (or
anon_inode_getfd()) with flags provided by userspace. Or, if flags cannot
be given by userspace, with flags set to O_CLOEXEC by default.
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/file.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/file.h b/include/linux/file.h
index 4d69123377a2..f87d30882a24 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -66,7 +66,6 @@ extern void set_close_on_exec(unsigned int fd, int flag);
extern bool get_close_on_exec(unsigned int fd);
extern void put_filp(struct file *);
extern int get_unused_fd_flags(unsigned flags);
-#define get_unused_fd() get_unused_fd_flags(0)
extern void put_unused_fd(unsigned int fd);
extern void fd_install(unsigned int fd, struct file *file);
--
cgit v1.2.1
From 9e3961a0979817c612b10b2da4f3045ec9faa779 Mon Sep 17 00:00:00 2001
From: Prarit Bhargava <prarit@redhat.com>
Date: Wed, 10 Dec 2014 15:45:50 -0800
Subject: kernel: add panic_on_warn
There have been several times where I have had to rebuild a kernel to
cause a panic when hitting a WARN() in the code in order to get a crash
dump from a system. Sometimes this is easy to do, other times (such as
in the case of a remote admin) it is not trivial to send new images to
the user.
A much easier method would be a switch to change the WARN() over to a
panic. This makes debugging easier in that I can now test the actual
image the WARN() was seen on and I do not have to engage in remote
debugging.
This patch adds a panic_on_warn kernel parameter and
/proc/sys/kernel/panic_on_warn calls panic() in the
warn_slowpath_common() path. The function will still print out the
location of the warning.
An example of the panic_on_warn output:
The first line below is from the WARN_ON() to output the WARN_ON()'s
location. After that the panic() output is displayed.
WARNING: CPU: 30 PID: 11698 at /home/prarit/dummy_module/dummy-module.c:25 init_dummy+0x1f/0x30 [dummy_module]()
Kernel panic - not syncing: panic_on_warn set ...
CPU: 30 PID: 11698 Comm: insmod Tainted: G W OE 3.17.0+ #57
Hardware name: Intel Corporation S2600CP/S2600CP, BIOS RMLSDP.86I.00.29.D696.1311111329 11/11/2013
0000000000000000 000000008e3f87df ffff88080f093c38 ffffffff81665190
0000000000000000 ffffffff818aea3d ffff88080f093cb8 ffffffff8165e2ec
ffffffff00000008 ffff88080f093cc8 ffff88080f093c68 000000008e3f87df
Call Trace:
[<ffffffff81665190>] dump_stack+0x46/0x58
[<ffffffff8165e2ec>] panic+0xd0/0x204
[<ffffffffa038e05f>] ? init_dummy+0x1f/0x30 [dummy_module]
[<ffffffff81076b90>] warn_slowpath_common+0xd0/0xd0
[<ffffffffa038e040>] ? dummy_greetings+0x40/0x40 [dummy_module]
[<ffffffff81076c8a>] warn_slowpath_null+0x1a/0x20
[<ffffffffa038e05f>] init_dummy+0x1f/0x30 [dummy_module]
[<ffffffff81002144>] do_one_initcall+0xd4/0x210
[<ffffffff811b52c2>] ? __vunmap+0xc2/0x110
[<ffffffff810f8889>] load_module+0x16a9/0x1b30
[<ffffffff810f3d30>] ? store_uevent+0x70/0x70
[<ffffffff810f49b9>] ? copy_module_from_fd.isra.44+0x129/0x180
[<ffffffff810f8ec6>] SyS_finit_module+0xa6/0xd0
[<ffffffff8166cf29>] system_call_fastpath+0x12/0x17
Successfully tested by me.
hpa said: There is another very valid use for this: many operators would
rather a machine shuts down than being potentially compromised either
functionally or security-wise.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/kernel.h | 1 +
include/uapi/linux/sysctl.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 446d76a87ba1..233ea8107038 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -427,6 +427,7 @@ extern int panic_timeout;
extern int panic_on_oops;
extern int panic_on_unrecovered_nmi;
extern int panic_on_io_nmi;
+extern int panic_on_warn;
extern int sysctl_panic_on_stackoverflow;
/*
* Only to be used by arch init code. If the user over-wrote the default
diff --git a/include/uapi/linux/sysctl.h b/include/uapi/linux/sysctl.h
index 43aaba1cc037..0956373b56db 100644
--- a/include/uapi/linux/sysctl.h
+++ b/include/uapi/linux/sysctl.h
@@ -153,6 +153,7 @@ enum
KERN_MAX_LOCK_DEPTH=74, /* int: rtmutex's maximum lock depth */
KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */
KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
+ KERN_PANIC_ON_WARN=77, /* int: call panic() in WARN() functions */
};
--
cgit v1.2.1
From 1dc6244bd6d4f62239487fb0befc41c63e117290 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 10 Dec 2014 15:45:53 -0800
Subject: printk: remove used-once early_vprintk
Eliminate the unlikely possibility of message interleaving for
early_printk/early_vprintk use.
early_vprintk can be done via the %pV extension so remove this
unnecessary function and change early_printk to have the equivalent
vprintk code.
All uses of early_printk already end with a newline so also remove the
unnecessary newline from the early_printk function.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/printk.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/printk.h b/include/linux/printk.h
index d78125f73ac4..3dd489f2dedc 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -118,7 +118,6 @@ int no_printk(const char *fmt, ...)
#ifdef CONFIG_EARLY_PRINTK
extern asmlinkage __printf(1, 2)
void early_printk(const char *fmt, ...);
-void early_vprintk(const char *fmt, va_list ap);
#else
static inline __printf(1, 2) __cold
void early_printk(const char *s, ...) { }
--
cgit v1.2.1
From a39d4a857d4bb0a62d6655c0d69f7387fe1ad160 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 10 Dec 2014 15:50:15 -0800
Subject: printk: add and use LOGLEVEL_<level> defines for KERN_<LEVEL>
equivalents
Use #defines instead of magic values.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jason Baron <jbaron@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/kern_levels.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/kern_levels.h b/include/linux/kern_levels.h
index 866caaa9e2bb..c2ce155d83cc 100644
--- a/include/linux/kern_levels.h
+++ b/include/linux/kern_levels.h
@@ -22,4 +22,17 @@
*/
#define KERN_CONT ""
+/* integer equivalents of KERN_<LEVEL> */
+#define LOGLEVEL_SCHED -2 /* Deferred messages from sched code
+ * are set to this special level */
+#define LOGLEVEL_DEFAULT -1 /* default (or last) loglevel */
+#define LOGLEVEL_EMERG 0 /* system is unusable */
+#define LOGLEVEL_ALERT 1 /* action must be taken immediately */
+#define LOGLEVEL_CRIT 2 /* critical conditions */
+#define LOGLEVEL_ERR 3 /* error conditions */
+#define LOGLEVEL_WARNING 4 /* warning conditions */
+#define LOGLEVEL_NOTICE 5 /* normal but significant condition */
+#define LOGLEVEL_INFO 6 /* informational */
+#define LOGLEVEL_DEBUG 7 /* debug-level messages */
+
#endif
--
cgit v1.2.1
From e149ed2b805fefdccf7ccdfc19eca22fdd4514ac Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 1 Nov 2014 10:57:28 -0400
Subject: take the targets of /proc/*/ns/* symlinks to separate fs
New pseudo-filesystem: nsfs. Targets of /proc/*/ns/* live there now.
It's not mountable (not even registered, so it's not in /proc/filesystems,
etc.). Files on it *are* bindable - we explicitly permit that in do_loopback().
This stuff lives in fs/nsfs.c now; proc_ns_fget() moved there as well.
get_proc_ns() is a macro now (it's simply returning ->i_private; would
have been an inline, if not for header ordering headache).
proc_ns_inode() is an ex-parrot. The interface used in procfs is
ns_get_path(path, task, ops) and ns_get_name(buf, size, task, ops).
Dentries and inodes are never hashed; a non-counting reference to dentry
is stashed in ns_common (removed by ->d_prune()) and reused by ns_get_path()
if present. See ns_get_path()/ns_prune_dentry/nsfs_evict() for details
of that mechanism.
As the result, proc_ns_follow_link() has stopped poking in nd->path.mnt;
it does nd_jump_link() on a consistent <vfsmount,dentry> pair it gets
from ns_get_path().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/ns_common.h | 1 +
include/linux/proc_ns.h | 31 ++++++++++++++++++-------------
include/uapi/linux/magic.h | 1 +
3 files changed, 20 insertions(+), 13 deletions(-)
(limited to 'include')
diff --git a/include/linux/ns_common.h b/include/linux/ns_common.h
index ce23cf4bbe69..85a5c8c16be9 100644
--- a/include/linux/ns_common.h
+++ b/include/linux/ns_common.h
@@ -4,6 +4,7 @@
struct proc_ns_operations;
struct ns_common {
+ atomic_long_t stashed;
const struct proc_ns_operations *ops;
unsigned int inum;
};
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index 2837ff41cfe3..42dfc615dbf8 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -4,9 +4,11 @@
#ifndef _LINUX_PROC_NS_H
#define _LINUX_PROC_NS_H
+#include <linux/ns_common.h>
+
struct pid_namespace;
struct nsproxy;
-struct ns_common;
+struct path;
struct proc_ns_operations {
const char *name;
@@ -38,35 +40,38 @@ enum {
extern int pid_ns_prepare_proc(struct pid_namespace *ns);
extern void pid_ns_release_proc(struct pid_namespace *ns);
-extern struct file *proc_ns_fget(int fd);
-extern struct ns_common *get_proc_ns(struct inode *);
extern int proc_alloc_inum(unsigned int *pino);
extern void proc_free_inum(unsigned int inum);
-extern bool proc_ns_inode(struct inode *inode);
#else /* CONFIG_PROC_FS */
static inline int pid_ns_prepare_proc(struct pid_namespace *ns) { return 0; }
static inline void pid_ns_release_proc(struct pid_namespace *ns) {}
-static inline struct file *proc_ns_fget(int fd)
-{
- return ERR_PTR(-EINVAL);
-}
-
-static inline struct ns_common *get_proc_ns(struct inode *inode) { return NULL; }
-
static inline int proc_alloc_inum(unsigned int *inum)
{
*inum = 1;
return 0;
}
static inline void proc_free_inum(unsigned int inum) {}
-static inline bool proc_ns_inode(struct inode *inode) { return false; }
#endif /* CONFIG_PROC_FS */
-#define ns_alloc_inum(ns) proc_alloc_inum(&(ns)->inum)
+static inline int ns_alloc_inum(struct ns_common *ns)
+{
+ atomic_long_set(&ns->stashed, 0);
+ return proc_alloc_inum(&ns->inum);
+}
+
#define ns_free_inum(ns) proc_free_inum((ns)->inum)
+extern struct file *proc_ns_fget(int fd);
+#define get_proc_ns(inode) ((struct ns_common *)(inode)->i_private)
+extern void *ns_get_path(struct path *path, struct task_struct *task,
+ const struct proc_ns_operations *ns_ops);
+
+extern int ns_get_name(char *buf, size_t size, struct task_struct *task,
+ const struct proc_ns_operations *ns_ops);
+extern void nsfs_init(void);
+
#endif /* _LINUX_PROC_NS_H */
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index 77c60311a6c6..7d664ea85ebd 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -72,5 +72,6 @@
#define MTD_INODE_FS_MAGIC 0x11307854
#define ANON_INODE_FS_MAGIC 0x09041934
#define BTRFS_TEST_MAGIC 0x73727279
+#define NSFS_MAGIC 0x6e736673
#endif /* __LINUX_MAGIC_H__ */
--
cgit v1.2.1
From 1f55a6ec940fb45e3edaa52b6e9fc40cf8e18dcb Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 1 Nov 2014 19:30:41 -0400
Subject: make nameidata completely opaque outside of fs/namei.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/namei.h | 25 +++----------------------
1 file changed, 3 insertions(+), 22 deletions(-)
(limited to 'include')
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 492de72560fa..c8990779f0c3 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -7,21 +7,10 @@
#include <linux/path.h>
struct vfsmount;
+struct nameidata;
enum { MAX_NESTED_LINKS = 8 };
-struct nameidata {
- struct path path;
- struct qstr last;
- struct path root;
- struct inode *inode; /* path.dentry.d_inode */
- unsigned int flags;
- unsigned seq, m_seq;
- int last_type;
- unsigned depth;
- char *saved_names[MAX_NESTED_LINKS + 1];
-};
-
/*
* Type of the last component on LOOKUP_PARENT
*/
@@ -82,16 +71,8 @@ extern struct dentry *lock_rename(struct dentry *, struct dentry *);
extern void unlock_rename(struct dentry *, struct dentry *);
extern void nd_jump_link(struct nameidata *nd, struct path *path);
-
-static inline void nd_set_link(struct nameidata *nd, char *path)
-{
- nd->saved_names[nd->depth] = path;
-}
-
-static inline char *nd_get_link(struct nameidata *nd)
-{
- return nd->saved_names[nd->depth];
-}
+extern void nd_set_link(struct nameidata *nd, char *path);
+extern char *nd_get_link(struct nameidata *nd);
static inline void nd_terminate_link(void *name, size_t len, size_t maxlen)
{
--
cgit v1.2.1
From bd9b51e79cb0b8bc00a7e0076a4a8963ca4a797c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 18 Nov 2014 23:38:21 -0500
Subject: make default ->i_fop have ->open() fail with ENXIO
As it is, default ->i_fop has NULL ->open() (along with all other methods).
The only case where it matters is reopening (via procfs symlink) a file that
didn't get its ->f_op from ->i_fop - anything else will have ->i_fop assigned
to something sane (default would fail on read/write/ioctl/etc.).
Unfortunately, such case exists - alloc_file() users, especially
anon_get_file() ones. There we have tons of opened files of very different
kinds sharing the same inode. As the result, attempt to reopen those via
procfs succeeds and you get a descriptor you can't do anything with.
Moreover, in case of sockets we set ->i_fop that will only be used
on such reopen attempts - and put a failing ->open() into it to make sure
those do not succeed.
It would be simpler to put such ->open() into default ->i_fop and leave
it unchanged both for anon inode (as we do anyway) and for socket ones. Result:
* everything going through do_dentry_open() works as it used to
* sock_no_open() kludge is gone
* attempts to reopen anon-inode files fail as they really ought to
* ditto for aio_private_file()
* ditto for perfmon - this one actually tried to imitate sock_no_open()
trick, but failed to set ->i_fop, so in the current tree reopens succeed and
yield completely useless descriptor. Intent clearly had been to fail with
-ENXIO on such reopens; now it actually does.
* everything else that used alloc_file() keeps working - it has ->i_fop
set for its inodes anyway
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/fs.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2beddc284bc2..b37beaf7a3a5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2151,7 +2151,6 @@ static inline int sb_is_blkdev_sb(struct super_block *sb)
extern int sync_filesystem(struct super_block *);
extern const struct file_operations def_blk_fops;
extern const struct file_operations def_chr_fops;
-extern const struct file_operations bad_sock_fops;
#ifdef CONFIG_BLOCK
extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long);
extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long);
--
cgit v1.2.1
From 81e1dadfb5b2d47aa513ad60b1c9cf0ea17b6514 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Thu, 4 Dec 2014 11:54:43 +0530
Subject: arm: omap3: twl: remove usb phy init data
commit dbc98635e0d4 ("phy: remove the old lookup method") removes
struct phy_consumer but twl-common.c still uses the "phy_consumer"
structure resulting in the following compilation warning.
arch/arm/mach-omap2/twl-common.c:94:21: error: array type has
incomplete element type
struct phy_consumer consumers[] = {
Removed using phy_consumer since twl4030 uses the new lookup
method.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
---
include/linux/i2c/twl.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index 8cfb50f38529..0bc03f100d04 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -26,7 +26,6 @@
#define __TWL_H_
#include <linux/types.h>
-#include <linux/phy/phy.h>
#include <linux/input/matrix_keypad.h>
/*
@@ -634,7 +633,6 @@ enum twl4030_usb_mode {
struct twl4030_usb_data {
enum twl4030_usb_mode usb_mode;
unsigned long features;
- struct phy_init_data *init_data;
int (*phy_init)(struct device *dev);
int (*phy_exit)(struct device *dev);
--
cgit v1.2.1
From f95b414edb18de59940dcebbefb49cf25c6d505c Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Thu, 11 Dec 2014 11:22:04 +0800
Subject: net: introduce helper macro for_each_cmsghdr
Introduce helper macro for_each_cmsghdr as a wrapper of the enumerating
cmsghdr from msghdr, just cleanup.
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/socket.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 048d6d6eed6d..6e49a14365dc 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -103,6 +103,10 @@ struct cmsghdr {
(cmsg)->cmsg_len <= (unsigned long) \
((mhdr)->msg_controllen - \
((char *)(cmsg) - (char *)(mhdr)->msg_control)))
+#define for_each_cmsghdr(cmsg, msg) \
+ for (cmsg = CMSG_FIRSTHDR(msg); \
+ cmsg; \
+ cmsg = CMSG_NXTHDR(msg, cmsg))
/*
* Get the next cmsg header
--
cgit v1.2.1
From 3d2667826cbb5e2eb8d8c7ee92f74bcb00b36a2f Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 11 Dec 2014 15:54:07 +0200
Subject: virtio_config: fix virtio_cread_bytes
virtio_cread_bytes is implemented incorrectly in case length happens to
be 2,4 or 8 bytes: transports and devices will assume it's an integer
value that has to be converted to LE format.
Let's just do multiple 1-byte reads: this also makes life easier
for transports who only need to implement 1,2,4 and 8 byte reads.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/linux/virtio_config.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 7979f850e7ac..a61cd37f088c 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -305,7 +305,10 @@ static inline void virtio_cread_bytes(struct virtio_device *vdev,
unsigned int offset,
void *buf, size_t len)
{
- vdev->config->get(vdev, offset, buf, len);
+ int i;
+
+ for (i = 0; i < len; i++)
+ vdev->config->get(vdev, offset + i, buf + i, 1);
}
static inline void virtio_cwrite8(struct virtio_device *vdev,
--
cgit v1.2.1
From 3dca0f42c7baaa4e01699629da13d6556f001ebe Mon Sep 17 00:00:00 2001
From: Matan Barak <matanb@mellanox.com>
Date: Thu, 11 Dec 2014 10:57:53 +0200
Subject: net/mlx4_core: Use tasklet for user-space CQ completion events
Previously, we've fired all our completion callbacks straight from our ISR.
Some of those callbacks were lightweight (for example, mlx4_en's and
IPoIB napi callbacks), but some of them did more work (for example,
the user-space RDMA stack uverbs' completion handler). Besides that,
doing more than the minimal work in ISR is generally considered wrong,
it could even lead to a hard lockup of the system. Since when a lot
of completion events are generated by the hardware, the loop over those
events could be so long, that we'll get into a hard lockup by the system
watchdog.
In order to avoid that, add a new way of invoking completion events
callbacks. In the interrupt itself, we add the CQs which receive completion
event to a per-EQ list and schedule a tasklet. In the tasklet context
we loop over all the CQs in the list and invoke the user callback.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index cf09e65c2901..3951b5368d7e 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -621,6 +621,11 @@ struct mlx4_cq {
atomic_t refcount;
struct completion free;
+ struct {
+ struct list_head list;
+ void (*comp)(struct mlx4_cq *);
+ void *priv;
+ } tasklet_ctx;
};
struct mlx4_qp {
--
cgit v1.2.1
From ddae0349fdb78bcc5e7219061847012aa1a29069 Mon Sep 17 00:00:00 2001
From: Eugenia Emantayev <eugenia@mellanox.co.il>
Date: Thu, 11 Dec 2014 10:57:54 +0200
Subject: net/mlx4: Change QP allocation scheme
When using BF (Blue-Flame), the QPN overrides the VLAN, CV, and SV fields
in the WQE. Thus, BF may only be used for QPNs with bits 6,7 unset.
The current Ethernet driver code reserves a Tx QP range with 256b alignment.
This is wrong because if there are more than 64 Tx QPs in use,
QPNs >= base + 65 will have bits 6/7 set.
This problem is not specific for the Ethernet driver, any entity that
tries to reserve more than 64 BF-enabled QPs should fail. Also, using
ranges is not necessary here and is wasteful.
The new mechanism introduced here will support reservation for
"Eth QPs eligible for BF" for all drivers: bare-metal, multi-PF, and VFs
(when hypervisors support WC in VMs). The flow we use is:
1. In mlx4_en, allocate Tx QPs one by one instead of a range allocation,
and request "BF enabled QPs" if BF is supported for the function
2. In the ALLOC_RES FW command, change param1 to:
a. param1[23:0] - number of QPs
b. param1[31-24] - flags controlling QPs reservation
Bit 31 refers to Eth blueflame supported QPs. Those QPs must have
bits 6 and 7 unset in order to be used in Ethernet.
Bits 24-30 of the flags are currently reserved.
When a function tries to allocate a QP, it states the required attributes
for this QP. Those attributes are considered "best-effort". If an attribute,
such as Ethernet BF enabled QP, is a must-have attribute, the function has
to check that attribute is supported before trying to do the allocation.
In a lower layer of the code, mlx4_qp_reserve_range masks out the bits
which are unsupported. If SRIOV is used, the PF validates those attributes
and masks out unsupported attributes as well. In order to notify VFs which
attributes are supported, the VF uses QUERY_FUNC_CAP command. This command's
mailbox is filled by the PF, which notifies which QP allocation attributes
it supports.
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 21 +++++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 3951b5368d7e..272aa258c036 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -194,6 +194,22 @@ enum {
MLX4_DEV_CAP_FLAG2_80_VFS = 1LL << 18
};
+enum {
+ MLX4_QUERY_FUNC_FLAGS_BF_RES_QP = 1LL << 0
+};
+
+/* bit enums for an 8-bit flags field indicating special use
+ * QPs which require special handling in qp_reserve_range.
+ * Currently, this only includes QPs used by the ETH interface,
+ * where we expect to use blueflame. These QPs must not have
+ * bits 6 and 7 set in their qp number.
+ *
+ * This enum may use only bits 0..7.
+ */
+enum {
+ MLX4_RESERVE_ETH_BF_QP = 1 << 7,
+};
+
enum {
MLX4_DEV_CAP_64B_EQE_ENABLED = 1LL << 0,
MLX4_DEV_CAP_64B_CQE_ENABLED = 1LL << 1,
@@ -501,6 +517,7 @@ struct mlx4_caps {
u64 phys_port_id[MLX4_MAX_PORTS + 1];
int tunnel_offload_mode;
u8 rx_checksum_flags_port[MLX4_MAX_PORTS + 1];
+ u8 alloc_res_qp_mask;
};
struct mlx4_buf_list {
@@ -950,8 +967,8 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
unsigned vector, int collapsed, int timestamp_en);
void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
-
-int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base);
+int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align,
+ int *base, u8 flags);
void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp,
--
cgit v1.2.1
From d57febe1a47801ef8a55dbf10672850523dfaa60 Mon Sep 17 00:00:00 2001
From: Matan Barak <matanb@mellanox.com>
Date: Thu, 11 Dec 2014 10:57:57 +0200
Subject: net/mlx4: Add A0 hybrid steering
A0 hybrid steering is a form of high performance flow steering.
By using this mode, mlx4 cards use a fast limited table based steering,
in order to enable fast steering of unicast packets to a QP.
In order to implement A0 hybrid steering we allocate resources
from different zones:
(1) General range
(2) Special MAC-assigned QPs [RSS, Raw-Ethernet] each has its own region.
When we create a rss QP or a raw ethernet (A0 steerable and BF ready) QP,
we try hard to allocate the QP from range (2). Otherwise, we try hard not
to allocate from this range. However, when the system is pushed to its
limits and one needs every resource, the allocator uses every region it can.
Meaning, when we run out of raw-eth qps, the allocator allocates from the
general range (and the special-A0 area is no longer active). If we run out
of RSS qps, the mechanism tries to allocate from the raw-eth QP zone. If that
is also exhausted, the allocator will allocate from the general range
(and the A0 region is no longer active).
Note that if a raw-eth qp is allocated from the general range, it attempts
to allocate the range such that bits 6 and 7 (blueflame bits) in the
QP number are not set.
When the feature is used in SRIOV, the VF has to notify the PF what
kind of QP attributes it needs. In order to do that, along with the
"Eth QP blueflame" bit, we reserve a new "A0 steerable QP". According
to the combination of these bits, the PF tries to allocate a suitable QP.
In order to maintain backward compatibility (with older PFs), the PF
notifies which QP attributes it supports via QUERY_FUNC_CAP command.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 272aa258c036..39890cddc5fa 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -195,7 +195,8 @@ enum {
};
enum {
- MLX4_QUERY_FUNC_FLAGS_BF_RES_QP = 1LL << 0
+ MLX4_QUERY_FUNC_FLAGS_BF_RES_QP = 1LL << 0,
+ MLX4_QUERY_FUNC_FLAGS_A0_RES_QP = 1LL << 1
};
/* bit enums for an 8-bit flags field indicating special use
@@ -207,6 +208,7 @@ enum {
* This enum may use only bits 0..7.
*/
enum {
+ MLX4_RESERVE_A0_QP = 1 << 6,
MLX4_RESERVE_ETH_BF_QP = 1 << 7,
};
@@ -349,6 +351,8 @@ enum {
enum mlx4_qp_region {
MLX4_QP_REGION_FW = 0,
+ MLX4_QP_REGION_RSS_RAW_ETH,
+ MLX4_QP_REGION_BOTTOM = MLX4_QP_REGION_RSS_RAW_ETH,
MLX4_QP_REGION_ETH_ADDR,
MLX4_QP_REGION_FC_ADDR,
MLX4_QP_REGION_FC_EXCH,
@@ -891,7 +895,9 @@ static inline int mlx4_num_reserved_sqps(struct mlx4_dev *dev)
static inline int mlx4_is_qp_reserved(struct mlx4_dev *dev, u32 qpn)
{
return (qpn < dev->phys_caps.base_sqpn + 8 +
- 16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev));
+ 16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev) &&
+ qpn >= dev->phys_caps.base_sqpn) ||
+ (qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]);
}
static inline int mlx4_is_guest_proxy(struct mlx4_dev *dev, int slave, u32 qpn)
--
cgit v1.2.1
From 7d077cd34eabb2ffd05abe0f2cad01da1ef11712 Mon Sep 17 00:00:00 2001
From: Matan Barak <matanb@mellanox.com>
Date: Thu, 11 Dec 2014 10:58:00 +0200
Subject: net/mlx4: Add support for A0 steering
Add the required firmware commands for A0 steering and a way to enable
that. The firmware support focuses on INIT_HCA, QUERY_HCA, QUERY_PORT,
QUERY_DEV_CAP and QUERY_FUNC_CAP commands. Those commands are used
to configure and query the device.
The different A0 DMFS (steering) modes are:
Static - optimized performance, but flow steering rules are
limited. This mode should be choosed explicitly by the user
in order to be used.
Dynamic - this mode should be explicitly choosed by the user.
In this mode, the FW works in optimized steering mode as long as
it can and afterwards automatically drops to classic (full) DMFS.
Disable - this mode should be explicitly choosed by the user.
The user instructs the system not to use optimized steering, even if
the FW supports Dynamic A0 DMFS (and thus will be able to use optimized
steering in Default A0 DMFS mode).
Default - this mode is implicitly choosed. In this mode, if the FW
supports Dynamic A0 DMFS, it'll work in this mode. Otherwise, it'll
work at Disable A0 DMFS mode.
Under SRIOV configuration, when the A0 steering mode is enabled,
older guest VF drivers who aren't using the RX QP allocation flag
(MLX4_RESERVE_A0_QP) will get a QP from the general range and
fail when attempting to register a steering rule. To avoid that,
the PF context behaviour is changed once on A0 static mode, to
require support for the allocation flag in VF drivers too.
In order to enable A0 steering, we use log_num_mgm_entry_size param.
If the value of the parameter is not positive, we treat the absolute
value of log_num_mgm_entry_size as a bit field. Setting bit 2 of this
bit field enables static A0 steering.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/mlx4/device.h | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 39890cddc5fa..25c791e295fd 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -117,6 +117,14 @@ enum {
MLX4_STEERING_MODE_DEVICE_MANAGED
};
+enum {
+ MLX4_STEERING_DMFS_A0_DEFAULT,
+ MLX4_STEERING_DMFS_A0_DYNAMIC,
+ MLX4_STEERING_DMFS_A0_STATIC,
+ MLX4_STEERING_DMFS_A0_DISABLE,
+ MLX4_STEERING_DMFS_A0_NOT_SUPPORTED
+};
+
static inline const char *mlx4_steering_mode_str(int steering_mode)
{
switch (steering_mode) {
@@ -191,7 +199,8 @@ enum {
MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP = 1LL << 15,
MLX4_DEV_CAP_FLAG2_CONFIG_DEV = 1LL << 16,
MLX4_DEV_CAP_FLAG2_SYS_EQS = 1LL << 17,
- MLX4_DEV_CAP_FLAG2_80_VFS = 1LL << 18
+ MLX4_DEV_CAP_FLAG2_80_VFS = 1LL << 18,
+ MLX4_DEV_CAP_FLAG2_FS_A0 = 1LL << 19
};
enum {
@@ -225,7 +234,8 @@ enum {
enum {
MLX4_FUNC_CAP_64B_EQE_CQE = 1L << 0,
- MLX4_FUNC_CAP_EQE_CQE_STRIDE = 1L << 1
+ MLX4_FUNC_CAP_EQE_CQE_STRIDE = 1L << 1,
+ MLX4_FUNC_CAP_DMFS_A0_STATIC = 1L << 2
};
@@ -482,6 +492,7 @@ struct mlx4_caps {
int reserved_mcgs;
int num_qp_per_mgm;
int steering_mode;
+ int dmfs_high_steer_mode;
int fs_log_max_ucast_qp_range_size;
int num_pds;
int reserved_pds;
@@ -522,6 +533,8 @@ struct mlx4_caps {
int tunnel_offload_mode;
u8 rx_checksum_flags_port[MLX4_MAX_PORTS + 1];
u8 alloc_res_qp_mask;
+ u32 dmfs_high_rate_qpn_base;
+ u32 dmfs_high_rate_qpn_range;
};
struct mlx4_buf_list {
--
cgit v1.2.1
From 7e50387bceda4d5542e4ba87097f69071b425fe5 Mon Sep 17 00:00:00 2001
From: Corey Minyard <cminyard@mvista.com>
Date: Thu, 9 Oct 2014 07:20:32 -0500
Subject: ipmi: Move the address source to string to ipmi-generic code
It was in the system interface driver, but is generic functionality.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
include/linux/ipmi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/ipmi.h b/include/linux/ipmi.h
index 76d2acbfa7c6..47b8f8ddb2b1 100644
--- a/include/linux/ipmi.h
+++ b/include/linux/ipmi.h
@@ -278,6 +278,7 @@ enum ipmi_addr_src {
SI_INVALID = 0, SI_HOTMOD, SI_HARDCODED, SI_SPMI, SI_ACPI, SI_SMBIOS,
SI_PCI, SI_DEVICETREE, SI_DEFAULT
};
+const char *ipmi_addr_src_to_str(enum ipmi_addr_src src);
union ipmi_smi_info_union {
/*
--
cgit v1.2.1
From 5a0e10ec4a82ec9e1ab9b85a0f2c2893f7ffda25 Mon Sep 17 00:00:00 2001
From: Corey Minyard <cminyard@mvista.com>
Date: Fri, 10 Oct 2014 22:11:05 -0500
Subject: ipmi: Remove useless sysfs_name parameters
It was always "bmc", so just hardcode it. It makes no sense to
pass that in.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
include/linux/ipmi_smi.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ipmi_smi.h b/include/linux/ipmi_smi.h
index bd349240d50e..6131845016d9 100644
--- a/include/linux/ipmi_smi.h
+++ b/include/linux/ipmi_smi.h
@@ -212,7 +212,6 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
void *send_info,
struct ipmi_device_id *device_id,
struct device *dev,
- const char *sysfs_name,
unsigned char slave_addr);
/*
--
cgit v1.2.1
From a11213fc36d29d42ab00d400796e98fc770c93b9 Mon Sep 17 00:00:00 2001
From: Corey Minyard <cminyard@mvista.com>
Date: Fri, 10 Oct 2014 17:47:04 -0500
Subject: ipmi: Use the proper type for acpi_handle
Minor cleanup, don't use a void pointer, use the right type.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
include/linux/ipmi.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ipmi.h b/include/linux/ipmi.h
index 47b8f8ddb2b1..838dbfa3c331 100644
--- a/include/linux/ipmi.h
+++ b/include/linux/ipmi.h
@@ -37,6 +37,7 @@
#include <linux/list.h>
#include <linux/proc_fs.h>
+#include <linux/acpi.h> /* For acpi_handle */
struct module;
struct device;
@@ -281,13 +282,15 @@ enum ipmi_addr_src {
const char *ipmi_addr_src_to_str(enum ipmi_addr_src src);
union ipmi_smi_info_union {
+#ifdef CONFIG_ACPI
/*
* the acpi_info element is defined for the SI_ACPI
* address type
*/
struct {
- void *acpi_handle;
+ acpi_handle acpi_handle;
} acpi_info;
+#endif
};
struct ipmi_smi_info {
--
cgit v1.2.1
From 99ab32f3b5d705be562b8c4d9dca7c1ae3dc2cdf Mon Sep 17 00:00:00 2001
From: Corey Minyard <cminyard@mvista.com>
Date: Fri, 7 Nov 2014 07:57:31 -0600
Subject: ipmi: Remove the now unused priority from SMI sender
Since the queue was moved into the message handler, the priority
field is now irrelevant.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
---
include/linux/ipmi_smi.h | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/ipmi_smi.h b/include/linux/ipmi_smi.h
index 6131845016d9..0b1e569f5ff5 100644
--- a/include/linux/ipmi_smi.h
+++ b/include/linux/ipmi_smi.h
@@ -98,12 +98,11 @@ struct ipmi_smi_handlers {
operation is not allowed to fail. If an error occurs, it
should report back the error in a received message. It may
do this in the current call context, since no write locks
- are held when this is run. If the priority is > 0, the
- message will go into a high-priority queue and be sent
- first. Otherwise, it goes into a normal-priority queue. */
+ are held when this is run. Message are delivered one at
+ a time by the message handler, a new message will not be
+ delivered until the previous message is returned. */
void (*sender)(void *send_info,
- struct ipmi_smi_msg *msg,
- int priority);
+ struct ipmi_smi_msg *msg);
/* Called by the upper layer to request that we try to get
events from the BMC we are attached to. */
--
cgit v1.2.1
From 4b1acc43331d6c716c331a61477660dc20c8b59c Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Tue, 18 Nov 2014 17:04:53 +0100
Subject: i2c: core changes for slave support
Finally(!), make Linux support being an I2C slave. Most of the existing
infrastructure is reused. We mainly add i2c_slave_register/unregister()
calls which tells i2c bus drivers to activate the slave mode. Then, they
also get a callback to report slave events to.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
include/linux/i2c.h | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
(limited to 'include')
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index b556e0ab946f..a720d9921b47 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -46,6 +46,8 @@ struct i2c_client;
struct i2c_driver;
union i2c_smbus_data;
struct i2c_board_info;
+enum i2c_slave_event;
+typedef int (*i2c_slave_cb_t)(struct i2c_client *, enum i2c_slave_event, u8 *);
struct module;
@@ -209,6 +211,8 @@ struct i2c_driver {
* @irq: indicates the IRQ generated by this device (if any)
* @detected: member of an i2c_driver.clients list or i2c-core's
* userspace_devices list
+ * @slave_cb: Callback when I2C slave mode of an adapter is used. The adapter
+ * calls it to pass on slave events to the slave driver.
*
* An i2c_client identifies a single device (i.e. chip) connected to an
* i2c bus. The behaviour exposed to Linux is defined by the driver
@@ -224,6 +228,7 @@ struct i2c_client {
struct device dev; /* the device structure */
int irq; /* irq issued by device */
struct list_head detected;
+ i2c_slave_cb_t slave_cb; /* callback for slave mode */
};
#define to_i2c_client(d) container_of(d, struct i2c_client, dev)
@@ -246,6 +251,25 @@ static inline void i2c_set_clientdata(struct i2c_client *dev, void *data)
dev_set_drvdata(&dev->dev, data);
}
+/* I2C slave support */
+
+enum i2c_slave_event {
+ I2C_SLAVE_REQ_READ_START,
+ I2C_SLAVE_REQ_READ_END,
+ I2C_SLAVE_REQ_WRITE_START,
+ I2C_SLAVE_REQ_WRITE_END,
+ I2C_SLAVE_STOP,
+};
+
+extern int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb);
+extern int i2c_slave_unregister(struct i2c_client *client);
+
+static inline int i2c_slave_event(struct i2c_client *client,
+ enum i2c_slave_event event, u8 *val)
+{
+ return client->slave_cb(client, event, val);
+}
+
/**
* struct i2c_board_info - template for device creation
* @type: chip type, to initialize i2c_client.name
@@ -352,6 +376,8 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info,
* into I2C transfers instead.
* @functionality: Return the flags that this algorithm/adapter pair supports
* from the I2C_FUNC_* flags.
+ * @reg_slave: Register given client to I2C slave mode of this adapter
+ * @unreg_slave: Unregister given client from I2C slave mode of this adapter
*
* The following structs are for those who like to implement new bus drivers:
* i2c_algorithm is the interface to a class of hardware solutions which can
@@ -377,6 +403,9 @@ struct i2c_algorithm {
/* To determine what the adapter supports */
u32 (*functionality) (struct i2c_adapter *);
+
+ int (*reg_slave)(struct i2c_client *client);
+ int (*unreg_slave)(struct i2c_client *client);
};
/**
--
cgit v1.2.1
From 027bc8b08242c59e19356b4b2c189f2d849ab660 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 16 Sep 2014 13:50:01 -0700
Subject: pstore-ram: Allow optional mapping with pgprot_noncached
On some ARMs the memory can be mapped pgprot_noncached() and still
be working for atomic operations. As pointed out by Colin Cross
<ccross@android.com>, in some cases you do want to use
pgprot_noncached() if the SoC supports it to see a debug printk
just before a write hanging the system.
On ARMs, the atomic operations on strongly ordered memory are
implementation defined. So let's provide an optional kernel parameter
for configuring pgprot_noncached(), and use pgprot_writecombine() by
default.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: stable@vger.kernel.org
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
include/linux/pstore_ram.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h
index 9974975d40db..4af3fdc85b01 100644
--- a/include/linux/pstore_ram.h
+++ b/include/linux/pstore_ram.h
@@ -53,7 +53,8 @@ struct persistent_ram_zone {
};
struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
- u32 sig, struct persistent_ram_ecc_info *ecc_info);
+ u32 sig, struct persistent_ram_ecc_info *ecc_info,
+ unsigned int memtype);
void persistent_ram_free(struct persistent_ram_zone *prz);
void persistent_ram_zap(struct persistent_ram_zone *prz);
@@ -76,6 +77,7 @@ ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
struct ramoops_platform_data {
unsigned long mem_size;
unsigned long mem_address;
+ unsigned int mem_type;
unsigned long record_size;
unsigned long console_size;
unsigned long ftrace_size;
--
cgit v1.2.1
From 9cc46516ddf497ea16e8d7cb986ae03a0f6b92f8 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Tue, 2 Dec 2014 12:27:26 -0600
Subject: userns: Add a knob to disable setgroups on a per user namespace basis
- Expose the knob to user space through a proc file /proc/<pid>/setgroups
A value of "deny" means the setgroups system call is disabled in the
current processes user namespace and can not be enabled in the
future in this user namespace.
A value of "allow" means the segtoups system call is enabled.
- Descendant user namespaces inherit the value of setgroups from
their parents.
- A proc file is used (instead of a sysctl) as sysctls currently do
not allow checking the permissions at open time.
- Writing to the proc file is restricted to before the gid_map
for the user namespace is set.
This ensures that disabling setgroups at a user namespace
level will never remove the ability to call setgroups
from a process that already has that ability.
A process may opt in to the setgroups disable for itself by
creating, entering and configuring a user namespace or by calling
setns on an existing user namespace with setgroups disabled.
Processes without privileges already can not call setgroups so this
is a noop. Prodcess with privilege become processes without
privilege when entering a user namespace and as with any other path
to dropping privilege they would not have the ability to call
setgroups. So this remains within the bounds of what is possible
without a knob to disable setgroups permanently in a user namespace.
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
include/linux/user_namespace.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 8d493083486a..9f3579ff543d 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -17,6 +17,10 @@ struct uid_gid_map { /* 64 bytes -- 1 cache line */
} extent[UID_GID_MAP_MAX_EXTENTS];
};
+#define USERNS_SETGROUPS_ALLOWED 1UL
+
+#define USERNS_INIT_FLAGS USERNS_SETGROUPS_ALLOWED
+
struct user_namespace {
struct uid_gid_map uid_map;
struct uid_gid_map gid_map;
@@ -27,6 +31,7 @@ struct user_namespace {
kuid_t owner;
kgid_t group;
unsigned int proc_inum;
+ unsigned long flags;
/* Register of per-UID persistent keyrings for this namespace */
#ifdef CONFIG_PERSISTENT_KEYRINGS
@@ -63,6 +68,8 @@ extern const struct seq_operations proc_projid_seq_operations;
extern ssize_t proc_uid_map_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t proc_gid_map_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t proc_projid_map_write(struct file *, const char __user *, size_t, loff_t *);
+extern ssize_t proc_setgroups_write(struct file *, const char __user *, size_t, loff_t *);
+extern int proc_setgroups_show(struct seq_file *m, void *v);
extern bool userns_may_setgroups(const struct user_namespace *ns);
#else
--
cgit v1.2.1
From 1077fa36f23e259858caf6f269a47393a5aff523 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@redhat.com>
Date: Thu, 11 Dec 2014 15:02:06 -0800
Subject: arch: Add lightweight memory barriers dma_rmb() and dma_wmb()
There are a number of situations where the mandatory barriers rmb() and
wmb() are used to order memory/memory operations in the device drivers
and those barriers are much heavier than they actually need to be. For
example in the case of PowerPC wmb() calls the heavy-weight sync
instruction when for coherent memory operations all that is really needed
is an lsync or eieio instruction.
This commit adds a coherent only version of the mandatory memory barriers
rmb() and wmb(). In most cases this should result in the barrier being the
same as the SMP barriers for the SMP case, however in some cases we use a
barrier that is somewhere in between rmb() and smp_rmb(). For example on
ARM the rmb barriers break down as follows:
Barrier Call Explanation
--------- -------- ----------------------------------
rmb() dsb() Data synchronization barrier - system
dma_rmb() dmb(osh) data memory barrier - outer sharable
smp_rmb() dmb(ish) data memory barrier - inner sharable
These new barriers are not as safe as the standard rmb() and wmb().
Specifically they do not guarantee ordering between coherent and incoherent
memories. The primary use case for these would be to enforce ordering of
reads and writes when accessing coherent memory that is shared between the
CPU and a device.
It may also be noted that there is no dma_mb(). Most architectures don't
provide a good mechanism for performing a coherent only full barrier without
resorting to the same mechanism used in mb(). As such there isn't much to
be gained in trying to define such a function.
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: David Miller <davem@davemloft.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/asm-generic/barrier.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h
index 1402fa855388..f5c40b0fadc2 100644
--- a/include/asm-generic/barrier.h
+++ b/include/asm-generic/barrier.h
@@ -42,6 +42,14 @@
#define wmb() mb()
#endif
+#ifndef dma_rmb
+#define dma_rmb() rmb()
+#endif
+
+#ifndef dma_wmb
+#define dma_wmb() wmb()
+#endif
+
#ifndef read_barrier_depends
#define read_barrier_depends() do { } while (0)
#endif
--
cgit v1.2.1
From 63f13448d81c910a284b096149411a719cbed501 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Tue, 9 Dec 2014 15:37:07 -0500
Subject: powerpc: add little endian flag to syscall_get_arch()
Since both ppc and ppc64 have LE variants which are now reported by uname, add
that flag (__AUDIT_ARCH_LE) to syscall_get_arch() and add AUDIT_ARCH_PPC64LE
variant.
Without this, perf trace and auditctl fail.
Mainline kernel reports ppc64le (per a058801) but there is no matching
AUDIT_ARCH_PPC64LE.
Since 32-bit PPC LE is not supported by audit, don't advertise it in
AUDIT_ARCH_PPC* variants.
See:
https://www.redhat.com/archives/linux-audit/2014-August/msg00082.html
https://www.redhat.com/archives/linux-audit/2014-December/msg00004.html
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
include/uapi/linux/audit.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index d4dbef14d4df..584bb0113e25 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -365,7 +365,9 @@ enum {
#define AUDIT_ARCH_PARISC (EM_PARISC)
#define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_PPC (EM_PPC)
+/* do not define AUDIT_ARCH_PPCLE since it is not supported by audit */
#define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT)
+#define AUDIT_ARCH_PPC64LE (EM_PPC64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_S390 (EM_S390)
#define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_SH (EM_SH)
--
cgit v1.2.1
From 7142637dd93a7e1e9f5515e6c66c7d271fa92ad2 Mon Sep 17 00:00:00 2001
From: Quentin Lambert <lambert.quentin@gmail.com>
Date: Fri, 12 Dec 2014 13:36:54 +0100
Subject: linux/interrupt.h: remove the definition of unused tasklet_hi_enable
Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/interrupt.h | 6 ------
1 file changed, 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 69517a24bc50..d9b05b5bf8c7 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -556,12 +556,6 @@ static inline void tasklet_enable(struct tasklet_struct *t)
atomic_dec(&t->count);
}
-static inline void tasklet_hi_enable(struct tasklet_struct *t)
-{
- smp_mb__before_atomic();
- atomic_dec(&t->count);
-}
-
extern void tasklet_kill(struct tasklet_struct *t);
extern void tasklet_kill_immediate(struct tasklet_struct *t, unsigned int cpu);
extern void tasklet_init(struct tasklet_struct *t,
--
cgit v1.2.1
From 175f8e2650f7ca6b33d338be3ccc1c00e89594ea Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 12 Dec 2014 22:51:58 +0100
Subject: ACPI / PM: Do not disable wakeup GPEs that have not been enabled
In some cases acpi_device_wakeup() may be called to ensure wakeup
power to be off for a given device even though that device's wakeup
GPE has not been enabled so far. It calls acpi_disable_gpe() on a
GPE that's not enabled and this causes ACPICA to return the AE_LIMIT
status code from that call which then is reported as an error by the
ACPICA's debug facilities (if enabled). This may lead to a fair
amount of confusion, so introduce a new ACPI device wakeup flag
to store the wakeup GPE status and avoid disabling wakeup GPEs
that have not been enabled.
Reported-and-tested-by: Venkat Raghavulu <venkat.raghavulu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/acpi_bus.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index f34a0835aa4f..8de31d472fad 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -312,6 +312,7 @@ struct acpi_device_wakeup_flags {
u8 valid:1; /* Can successfully enable wakeup? */
u8 run_wake:1; /* Run-Wake GPE devices */
u8 notifier_present:1; /* Wake-up notify handler has been installed */
+ u8 enabled:1; /* Enabled for wakeup */
};
struct acpi_device_wakeup_context {
--
cgit v1.2.1
From 40bd62c6194bdee1bc6652b3b0aa28e34883f603 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 11 Dec 2014 11:20:36 +0100
Subject: PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
There're now no users left of the SET_PM_RUNTIME_PM_OPS() macro, since
all have converted to use the SET_RUNTIME_PM_OPS() macro instead, so
let's remove it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 66a656eb335b..8b5976364619 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -351,8 +351,6 @@ struct dev_pm_ops {
#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn)
#endif
-#define SET_PM_RUNTIME_PM_OPS SET_RUNTIME_PM_OPS
-
/*
* Use this if you want to use the same suspend and resume callbacks for suspend
* to RAM and hibernation.
--
cgit v1.2.1
From aee4e5f3d3abb7a2239dd02f6d8fb173413fd02f Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 10 Dec 2014 17:31:07 -0500
Subject: tracing/sched: Check preempt_count() for current when reading
task->state
When recording the state of a task for the sched_switch tracepoint a check of
task_preempt_count() is performed to see if PREEMPT_ACTIVE is set. This is
because, technically, a task being preempted is really in the TASK_RUNNING
state, and that is what should be recorded when tracing a sched_switch,
even if the task put itself into another state (it hasn't scheduled out
in that state yet).
But with the change to use per_cpu preempt counts, the
task_thread_info(p)->preempt_count is no longer used, and instead
task_preempt_count(p) is used.
The problem is that this does not use the current preempt count but a stale
one from a previous sched_switch. The task_preempt_count(p) uses
saved_preempt_count and not preempt_count(). But for tracing sched_switch,
if p is current, we really want preempt_count().
I hit this bug when I was tracing sleep and the call from do_nanosleep()
scheduled out in the "RUNNING" state.
sleep-4290 [000] 537272.259992: sched_switch: sleep:4290 [120] R ==> swapper/0:0 [120]
sleep-4290 [000] 537272.260015: kernel_stack: <stack trace>
=> __schedule (ffffffff8150864a)
=> schedule (ffffffff815089f8)
=> do_nanosleep (ffffffff8150b76c)
=> hrtimer_nanosleep (ffffffff8108d66b)
=> SyS_nanosleep (ffffffff8108d750)
=> return_to_handler (ffffffff8150e8e5)
=> tracesys_phase2 (ffffffff8150c844)
After a bit of hair pulling, I found that the state was really
TASK_INTERRUPTIBLE, but the saved_preempt_count had an old PREEMPT_ACTIVE
set and caused the sched_switch tracepoint to show it as RUNNING.
Link: http://lkml.kernel.org/r/20141210174428.3cb7542a@gandalf.local.home
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org # 3.13+
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: 01028747559a "sched: Create more preempt_count accessors"
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/trace/events/sched.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 0a68d5ae584e..a7d67bc14906 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -100,7 +100,7 @@ static inline long __trace_sched_switch_state(struct task_struct *p)
/*
* For all intents and purposes a preempted task is a running task.
*/
- if (task_preempt_count(p) & PREEMPT_ACTIVE)
+ if (preempt_count() & PREEMPT_ACTIVE)
state = TASK_RUNNING | TASK_STATE_MAX;
#endif
--
cgit v1.2.1
From c291ee622165cb2c8d4e7af63fffd499354a23be Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 11 Dec 2014 23:01:41 +0100
Subject: genirq: Prevent proc race against freeing of irq descriptors
Since the rework of the sparse interrupt code to actually free the
unused interrupt descriptors there exists a race between the /proc
interfaces to the irq subsystem and the code which frees the interrupt
descriptor.
CPU0 CPU1
show_interrupts()
desc = irq_to_desc(X);
free_desc(desc)
remove_from_radix_tree();
kfree(desc);
raw_spinlock_irq(&desc->lock);
/proc/interrupts is the only interface which can actively corrupt
kernel memory via the lock access. /proc/stat can only read from freed
memory. Extremly hard to trigger, but possible.
The interfaces in /proc/irq/N/ are not affected by this because the
removal of the proc file is serialized in procfs against concurrent
readers/writers. The removal happens before the descriptor is freed.
For architectures which have CONFIG_SPARSE_IRQ=n this is a non issue
as the descriptor is never freed. It's merely cleared out with the irq
descriptor lock held. So any concurrent proc access will either see
the old correct value or the cleared out ones.
Protect the lookup and access to the irq descriptor in
show_interrupts() with the sparse_irq_lock.
Provide kstat_irqs_usr() which is protecting the lookup and access
with sparse_irq_lock and switch /proc/stat to use it.
Document the existing kstat_irqs interfaces so it's clear that the
caller needs to take care about protection. The users of these
interfaces are either not affected due to SPARSE_IRQ=n or already
protected against removal.
Fixes: 1f5a5b87f78f "genirq: Implement a sane sparse_irq allocator"
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
---
include/linux/kernel_stat.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index b9376cd5a187..25a822f6f000 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -68,6 +68,7 @@ static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
* Number of interrupts per specific IRQ source, since bootup
*/
extern unsigned int kstat_irqs(unsigned int irq);
+extern unsigned int kstat_irqs_usr(unsigned int irq);
/*
* Number of interrupts per cpu, since bootup
--
cgit v1.2.1
From 6d3cfbe21bef5b66530b50ad16c88fdc71a04c35 Mon Sep 17 00:00:00 2001
From: Peter Maydell <peter.maydell@linaro.org>
Date: Thu, 4 Dec 2014 15:02:24 +0000
Subject: arm/arm64: KVM: vgic: move reset initialization into vgic_init_maps()
VGIC initialization currently happens in three phases:
(1) kvm_vgic_create() (triggered by userspace GIC creation)
(2) vgic_init_maps() (triggered by userspace GIC register read/write
requests, or from kvm_vgic_init() if not already run)
(3) kvm_vgic_init() (triggered by first VM run)
We were doing initialization of some state to correspond with the
state of a freshly-reset GIC in kvm_vgic_init(); this is too late,
since it will overwrite changes made by userspace using the
register access APIs before the VM is run. Move this initialization
earlier, into the vgic_init_maps() phase.
This fixes a bug where QEMU could successfully restore a saved
VM state snapshot into a VM that had already been run, but could
not restore it "from cold" using the -loadvm command line option
(the symptoms being that the restored VM would run but interrupts
were ignored).
Finally rename vgic_init_maps to vgic_init and renamed kvm_vgic_init to
kvm_vgic_map_resources.
[ This patch is originally written by Peter Maydell, but I have
modified it somewhat heavily, renaming various bits and moving code
around. If something is broken, I am to be blamed. - Christoffer ]
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_vgic.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 206dcc3b3f7a..fe9783ba924c 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -274,7 +274,7 @@ struct kvm_exit_mmio;
#ifdef CONFIG_KVM_ARM_VGIC
int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr, bool write);
int kvm_vgic_hyp_init(void);
-int kvm_vgic_init(struct kvm *kvm);
+int kvm_vgic_map_resources(struct kvm *kvm);
int kvm_vgic_create(struct kvm *kvm);
void kvm_vgic_destroy(struct kvm *kvm);
void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu);
@@ -321,7 +321,7 @@ static inline int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr,
return -ENXIO;
}
-static inline int kvm_vgic_init(struct kvm *kvm)
+static inline int kvm_vgic_map_resources(struct kvm *kvm)
{
return 0;
}
--
cgit v1.2.1
From c52edf5f8caff878afc93c1b1e9a3d9490a9932f Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Tue, 9 Dec 2014 14:28:09 +0100
Subject: arm/arm64: KVM: Rename vgic_initialized to vgic_ready
The vgic_initialized() macro currently returns the state of the
vgic->ready flag, which indicates if the vgic is ready to be used when
running a VM, not specifically if its internal state has been
initialized.
Rename the macro accordingly in preparation for a more nuanced
initialization flow.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_vgic.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index fe9783ba924c..3e262b9bbddf 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -287,7 +287,7 @@ bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
struct kvm_exit_mmio *mmio);
#define irqchip_in_kernel(k) (!!((k)->arch.vgic.in_kernel))
-#define vgic_initialized(k) ((k)->arch.vgic.ready)
+#define vgic_ready(k) ((k)->arch.vgic.ready)
int vgic_v2_probe(struct device_node *vgic_node,
const struct vgic_ops **ops,
@@ -369,7 +369,7 @@ static inline int irqchip_in_kernel(struct kvm *kvm)
return 0;
}
-static inline bool vgic_initialized(struct kvm *kvm)
+static inline bool vgic_ready(struct kvm *kvm)
{
return true;
}
--
cgit v1.2.1
From 1f57be289571d514b9412da2af25a64a81b8dd89 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Tue, 9 Dec 2014 14:30:36 +0100
Subject: arm/arm64: KVM: Add (new) vgic_initialized macro
Some code paths will need to check to see if the internal state of the
vgic has been initialized (such as when creating new VCPUs), so
introduce such a macro that checks the nr_cpus field which is set when
the vgic has been initialized.
Also set nr_cpus = 0 in kvm_vgic_destroy, because the error path in
vgic_init() will call this function, and code should never errornously
assume the vgic to be properly initialized after an error.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_vgic.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 3e262b9bbddf..ac4888dc86bc 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -287,6 +287,7 @@ bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
struct kvm_exit_mmio *mmio);
#define irqchip_in_kernel(k) (!!((k)->arch.vgic.in_kernel))
+#define vgic_initialized(k) (!!((k)->arch.vgic.nr_cpus))
#define vgic_ready(k) ((k)->arch.vgic.ready)
int vgic_v2_probe(struct device_node *vgic_node,
@@ -369,6 +370,11 @@ static inline int irqchip_in_kernel(struct kvm *kvm)
return 0;
}
+static inline bool vgic_initialized(struct kvm *kvm)
+{
+ return true;
+}
+
static inline bool vgic_ready(struct kvm *kvm)
{
return true;
--
cgit v1.2.1
From 8b28f621bea6f84d44adf7e804b73aff1e09105b Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <dave@stgolabs.net>
Date: Fri, 12 Dec 2014 16:54:18 -0800
Subject: mm,fs: introduce helpers around the i_mmap_mutex
This series is a continuation of the conversion of the i_mmap_mutex to
rwsem, following what we have for the anon memory counterpart. With
Hugh's feedback from the first iteration.
Ultimately, the most obvious paths that require exclusive ownership of the
lock is when we modify the VMA interval tree, via
vma_interval_tree_insert() and vma_interval_tree_remove() families. Cases
such as unmapping, where the ptes content is changed but the tree remains
untouched should make it safe to share the i_mmap_rwsem.
As such, the code of course is straightforward, however the devil is very
much in the details. While its been tested on a number of workloads
without anything exploding, I would not be surprised if there are some
less documented/known assumptions about the lock that could suffer from
these changes. Or maybe I'm just missing something, but either way I
believe its at the point where it could use more eyes and hopefully some
time in linux-next.
Because the lock type conversion is the heart of this patchset,
its worth noting a few comparisons between mutex vs rwsem (xadd):
(i) Same size, no extra footprint.
(ii) Both have CONFIG_XXX_SPIN_ON_OWNER capabilities for
exclusive lock ownership.
(iii) Both can be slightly unfair wrt exclusive ownership, with
writer lock stealing properties, not necessarily respecting
FIFO order for granting the lock when contended.
(iv) Mutexes can be slightly faster than rwsems when
the lock is non-contended.
(v) Both suck at performance for debug (slowpaths), which
shouldn't matter anyway.
Sharing the lock is obviously beneficial, and sem writer ownership is
close enough to mutexes. The biggest winner of these changes is
migration.
As for concrete numbers, the following performance results are for a
4-socket 60-core IvyBridge-EX with 130Gb of RAM.
Both alltests and disk (xfs+ramdisk) workloads of aim7 suite do quite well
with this set, with a steady ~60% throughput (jpm) increase for alltests
and up to ~30% for disk for high amounts of concurrency. Lower counts of
workload users (< 100) does not show much difference at all, so at least
no regressions.
3.18-rc1 3.18-rc1-i_mmap_rwsem
alltests-100 17918.72 ( 0.00%) 28417.97 ( 58.59%)
alltests-200 16529.39 ( 0.00%) 26807.92 ( 62.18%)
alltests-300 16591.17 ( 0.00%) 26878.08 ( 62.00%)
alltests-400 16490.37 ( 0.00%) 26664.63 ( 61.70%)
alltests-500 16593.17 ( 0.00%) 26433.72 ( 59.30%)
alltests-600 16508.56 ( 0.00%) 26409.20 ( 59.97%)
alltests-700 16508.19 ( 0.00%) 26298.58 ( 59.31%)
alltests-800 16437.58 ( 0.00%) 26433.02 ( 60.81%)
alltests-900 16418.35 ( 0.00%) 26241.61 ( 59.83%)
alltests-1000 16369.00 ( 0.00%) 26195.76 ( 60.03%)
alltests-1100 16330.11 ( 0.00%) 26133.46 ( 60.03%)
alltests-1200 16341.30 ( 0.00%) 26084.03 ( 59.62%)
alltests-1300 16304.75 ( 0.00%) 26024.74 ( 59.61%)
alltests-1400 16231.08 ( 0.00%) 25952.35 ( 59.89%)
alltests-1500 16168.06 ( 0.00%) 25850.58 ( 59.89%)
alltests-1600 16142.56 ( 0.00%) 25767.42 ( 59.62%)
alltests-1700 16118.91 ( 0.00%) 25689.58 ( 59.38%)
alltests-1800 16068.06 ( 0.00%) 25599.71 ( 59.32%)
alltests-1900 16046.94 ( 0.00%) 25525.92 ( 59.07%)
alltests-2000 16007.26 ( 0.00%) 25513.07 ( 59.38%)
disk-100 7582.14 ( 0.00%) 7257.48 ( -4.28%)
disk-200 6962.44 ( 0.00%) 7109.15 ( 2.11%)
disk-300 6435.93 ( 0.00%) 6904.75 ( 7.28%)
disk-400 6370.84 ( 0.00%) 6861.26 ( 7.70%)
disk-500 6353.42 ( 0.00%) 6846.71 ( 7.76%)
disk-600 6368.82 ( 0.00%) 6806.75 ( 6.88%)
disk-700 6331.37 ( 0.00%) 6796.01 ( 7.34%)
disk-800 6324.22 ( 0.00%) 6788.00 ( 7.33%)
disk-900 6253.52 ( 0.00%) 6750.43 ( 7.95%)
disk-1000 6242.53 ( 0.00%) 6855.11 ( 9.81%)
disk-1100 6234.75 ( 0.00%) 6858.47 ( 10.00%)
disk-1200 6312.76 ( 0.00%) 6845.13 ( 8.43%)
disk-1300 6309.95 ( 0.00%) 6834.51 ( 8.31%)
disk-1400 6171.76 ( 0.00%) 6787.09 ( 9.97%)
disk-1500 6139.81 ( 0.00%) 6761.09 ( 10.12%)
disk-1600 4807.12 ( 0.00%) 6725.33 ( 39.90%)
disk-1700 4669.50 ( 0.00%) 5985.38 ( 28.18%)
disk-1800 4663.51 ( 0.00%) 5972.99 ( 28.08%)
disk-1900 4674.31 ( 0.00%) 5949.94 ( 27.29%)
disk-2000 4668.36 ( 0.00%) 5834.93 ( 24.99%)
In addition, a 67.5% increase in successfully migrated NUMA pages, thus
improving node locality.
The patch layout is simple but designed for bisection (in case reversion
is needed if the changes break upstream) and easier review:
o Patches 1-4 convert the i_mmap lock from mutex to rwsem.
o Patches 5-10 share the lock in specific paths, each patch
details the rationale behind why it should be safe.
This patchset has been tested with: postgres 9.4 (with brand new hugetlb
support), hugetlbfs test suite (all tests pass, in fact more tests pass
with these changes than with an upstream kernel), ltp, aim7 benchmarks,
memcached and iozone with the -B option for mmap'ing. *Untested* paths
are nommu, memory-failure, uprobes and xip.
This patch (of 8):
Various parts of the kernel acquire and release this mutex, so add
i_mmap_lock_write() and immap_unlock_write() helper functions that will
encapsulate this logic. The next patch will make use of these.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: "Kirill A. Shutemov" <kirill@shutemov.name>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/fs.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index bb29b02d9bb6..bd0a1b2f3c02 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -467,6 +467,16 @@ struct block_device {
int mapping_tagged(struct address_space *mapping, int tag);
+static inline void i_mmap_lock_write(struct address_space *mapping)
+{
+ mutex_lock(&mapping->i_mmap_mutex);
+}
+
+static inline void i_mmap_unlock_write(struct address_space *mapping)
+{
+ mutex_unlock(&mapping->i_mmap_mutex);
+}
+
/*
* Might pages of this file be mapped into userspace?
*/
--
cgit v1.2.1
From c8c06efa8b552608493b7066c234cfa82c47fcea Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <dave@stgolabs.net>
Date: Fri, 12 Dec 2014 16:54:24 -0800
Subject: mm: convert i_mmap_mutex to rwsem
The i_mmap_mutex is a close cousin of the anon vma lock, both protecting
similar data, one for file backed pages and the other for anon memory. To
this end, this lock can also be a rwsem. In addition, there are some
important opportunities to share the lock when there are no tree
modifications.
This conversion is straightforward. For now, all users take the write
lock.
[sfr@canb.auug.org.au: update fremap.c]
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: "Kirill A. Shutemov" <kirill@shutemov.name>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/fs.h | 7 ++++---
include/linux/mmu_notifier.h | 2 +-
2 files changed, 5 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index bd0a1b2f3c02..6abcd0b72ae0 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -18,6 +18,7 @@
#include <linux/pid.h>
#include <linux/bug.h>
#include <linux/mutex.h>
+#include <linux/rwsem.h>
#include <linux/capability.h>
#include <linux/semaphore.h>
#include <linux/fiemap.h>
@@ -401,7 +402,7 @@ struct address_space {
atomic_t i_mmap_writable;/* count VM_SHARED mappings */
struct rb_root i_mmap; /* tree of private and shared mappings */
struct list_head i_mmap_nonlinear;/*list VM_NONLINEAR mappings */
- struct mutex i_mmap_mutex; /* protect tree, count, list */
+ struct rw_semaphore i_mmap_rwsem; /* protect tree, count, list */
/* Protected by tree_lock together with the radix tree */
unsigned long nrpages; /* number of total pages */
unsigned long nrshadows; /* number of shadow entries */
@@ -469,12 +470,12 @@ int mapping_tagged(struct address_space *mapping, int tag);
static inline void i_mmap_lock_write(struct address_space *mapping)
{
- mutex_lock(&mapping->i_mmap_mutex);
+ down_write(&mapping->i_mmap_rwsem);
}
static inline void i_mmap_unlock_write(struct address_space *mapping)
{
- mutex_unlock(&mapping->i_mmap_mutex);
+ up_write(&mapping->i_mmap_rwsem);
}
/*
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 88787bb4b3b9..ab8564b03468 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -154,7 +154,7 @@ struct mmu_notifier_ops {
* Therefore notifier chains can only be traversed when either
*
* 1. mmap_sem is held.
- * 2. One of the reverse map locks is held (i_mmap_mutex or anon_vma->rwsem).
+ * 2. One of the reverse map locks is held (i_mmap_rwsem or anon_vma->rwsem).
* 3. No other concurrent thread can access the list (release)
*/
struct mmu_notifier {
--
cgit v1.2.1
From 3dec0ba0be6a532cac949e02b853021bf6d57dad Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <dave@stgolabs.net>
Date: Fri, 12 Dec 2014 16:54:27 -0800
Subject: mm/rmap: share the i_mmap_rwsem
Similarly to the anon memory counterpart, we can share the mapping's lock
ownership as the interval tree is not modified when doing doing the walk,
only the file page.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: "Kirill A. Shutemov" <kirill@shutemov.name>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/fs.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6abcd0b72ae0..1d1838de6882 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -478,6 +478,16 @@ static inline void i_mmap_unlock_write(struct address_space *mapping)
up_write(&mapping->i_mmap_rwsem);
}
+static inline void i_mmap_lock_read(struct address_space *mapping)
+{
+ down_read(&mapping->i_mmap_rwsem);
+}
+
+static inline void i_mmap_unlock_read(struct address_space *mapping)
+{
+ up_read(&mapping->i_mmap_rwsem);
+}
+
/*
* Might pages of this file be mapped into userspace?
*/
--
cgit v1.2.1
From 5e19b013f55a884c59a14391b22138899d1cc4cc Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Fri, 12 Dec 2014 16:54:45 -0800
Subject: lib: bitmap: add alignment offset for bitmap_find_next_zero_area()
Add a bitmap_find_next_zero_area_off() function which works like
bitmap_find_next_zero_area() function except it allows an offset to be
specified when alignment is checked. This lets caller request a bit such
that its number plus the offset is aligned according to the mask.
[gregory.0xf0@gmail.com: Retrieved from https://patchwork.linuxtv.org/patch/6254/ and updated documentation]
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/bitmap.h | 36 +++++++++++++++++++++++++++++++-----
1 file changed, 31 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index e1c8d080c427..34e020c23644 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -45,6 +45,7 @@
* bitmap_set(dst, pos, nbits) Set specified bit area
* bitmap_clear(dst, pos, nbits) Clear specified bit area
* bitmap_find_next_zero_area(buf, len, pos, n, mask) Find bit free area
+ * bitmap_find_next_zero_area_off(buf, len, pos, n, mask) as above
* bitmap_shift_right(dst, src, n, nbits) *dst = *src >> n
* bitmap_shift_left(dst, src, n, nbits) *dst = *src << n
* bitmap_remap(dst, src, old, new, nbits) *dst = map(old, new)(src)
@@ -114,11 +115,36 @@ extern int __bitmap_weight(const unsigned long *bitmap, unsigned int nbits);
extern void bitmap_set(unsigned long *map, unsigned int start, int len);
extern void bitmap_clear(unsigned long *map, unsigned int start, int len);
-extern unsigned long bitmap_find_next_zero_area(unsigned long *map,
- unsigned long size,
- unsigned long start,
- unsigned int nr,
- unsigned long align_mask);
+
+extern unsigned long bitmap_find_next_zero_area_off(unsigned long *map,
+ unsigned long size,
+ unsigned long start,
+ unsigned int nr,
+ unsigned long align_mask,
+ unsigned long align_offset);
+
+/**
+ * bitmap_find_next_zero_area - find a contiguous aligned zero area
+ * @map: The address to base the search on
+ * @size: The bitmap size in bits
+ * @start: The bitnumber to start searching at
+ * @nr: The number of zeroed bits we're looking for
+ * @align_mask: Alignment mask for zero area
+ *
+ * The @align_mask should be one less than a power of 2; the effect is that
+ * the bit offset of all zero areas this function finds is multiples of that
+ * power of 2. A @align_mask of 0 means no alignment is required.
+ */
+static inline unsigned long
+bitmap_find_next_zero_area(unsigned long *map,
+ unsigned long size,
+ unsigned long start,
+ unsigned int nr,
+ unsigned long align_mask)
+{
+ return bitmap_find_next_zero_area_off(map, size, start, nr,
+ align_mask, 0);
+}
extern int bitmap_scnprintf(char *buf, unsigned int len,
const unsigned long *src, int nbits);
--
cgit v1.2.1
From 6f185c290edec576a2cccd6670e5b8e02e6f04db Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@parallels.com>
Date: Fri, 12 Dec 2014 16:55:15 -0800
Subject: memcg: turn memcg_kmem_skip_account into a bit field
It isn't supposed to stack, so turn it into a bit-field to save 4 bytes on
the task_struct.
Also, remove the memcg_stop/resume_kmem_account helpers - it is clearer to
set/clear the flag inline. Regarding the overwhelming comment to the
helpers, which is removed by this patch too, we already have a compact yet
accurate explanation in memcg_schedule_cache_create, no need in yet
another one.
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/sched.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 55f5ee7cc3d3..4cfdbcf8cf56 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1364,6 +1364,10 @@ struct task_struct {
unsigned sched_reset_on_fork:1;
unsigned sched_contributes_to_load:1;
+#ifdef CONFIG_MEMCG_KMEM
+ unsigned memcg_kmem_skip_account:1;
+#endif
+
unsigned long atomic_flags; /* Flags needing atomic access. */
pid_t pid;
@@ -1679,8 +1683,7 @@ struct task_struct {
/* bitmask and counter of trace recursion */
unsigned long trace_recursion;
#endif /* CONFIG_TRACING */
-#ifdef CONFIG_MEMCG /* memcg uses this to do batch job */
- unsigned int memcg_kmem_skip_account;
+#ifdef CONFIG_MEMCG
struct memcg_oom_info {
struct mem_cgroup *memcg;
gfp_t gfp_mask;
--
cgit v1.2.1
From bd6dace78b9e4595d29892f806514518449c7489 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Fri, 12 Dec 2014 16:55:35 -0800
Subject: mm: move swp_entry_t definition to include/linux/mm_types.h
swp_entry_t being defined in include/linux/swap.h instead of
include/linux/mm_types.h causes cyclic include dependency later when
include/linux/page_cgroup.h is included from writeback path. Move the
definition to include/linux/mm_types.h.
While at it, reformat the comment above it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm_types.h | 8 ++++++++
include/linux/swap.h | 8 --------
2 files changed, 8 insertions(+), 8 deletions(-)
(limited to 'include')
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index bf9f57529dcf..fc2daffa9db1 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -534,4 +534,12 @@ enum tlb_flush_reason {
NR_TLB_FLUSH_REASONS,
};
+ /*
+ * A swap entry has to fit into a "unsigned long", as the entry is hidden
+ * in the "index" field of the swapper address space.
+ */
+typedef struct {
+ unsigned long val;
+} swp_entry_t;
+
#endif /* _LINUX_MM_TYPES_H */
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 37a585beef5c..34e8b60ab973 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -102,14 +102,6 @@ union swap_header {
} info;
};
- /* A swap entry has to fit into a "unsigned long", as
- * the entry is hidden in the "index" field of the
- * swapper address space.
- */
-typedef struct {
- unsigned long val;
-} swp_entry_t;
-
/*
* current->reclaim_state points to one of these when a task is running
* memory reclaim
--
cgit v1.2.1
From 056b7ccef4bc670b1ed77181159c8228de0926ab Mon Sep 17 00:00:00 2001
From: Zhang Zhen <zhenzhang.zhang@huawei.com>
Date: Fri, 12 Dec 2014 16:55:38 -0800
Subject: mm/memcontrol.c: remove the unused arg in __memcg_kmem_get_cache()
The gfp was passed in but never used in this function.
Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 6ea9f919e888..b74942a9e22f 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -401,7 +401,7 @@ int memcg_cache_id(struct mem_cgroup *memcg);
void memcg_update_array_size(int num_groups);
struct kmem_cache *
-__memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp);
+__memcg_kmem_get_cache(struct kmem_cache *cachep);
int __memcg_charge_slab(struct kmem_cache *cachep, gfp_t gfp, int order);
void __memcg_uncharge_slab(struct kmem_cache *cachep, int order);
@@ -492,7 +492,7 @@ memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp)
if (unlikely(fatal_signal_pending(current)))
return cachep;
- return __memcg_kmem_get_cache(cachep, gfp);
+ return __memcg_kmem_get_cache(cachep);
}
#else
#define for_each_memcg_cache_index(_idx) \
--
cgit v1.2.1
From 66f2ca7e3f59312888131546176b42d6e248558a Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Fri, 12 Dec 2014 16:55:41 -0800
Subject: include/linux/kmemleak.h: needs slab.h
include/linux/kmemleak.h: In function 'kmemleak_alloc_recursive':
include/linux/kmemleak.h:43: error: 'SLAB_NOLEAKTRACE' undeclared (first use in this function)
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/kmemleak.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/kmemleak.h b/include/linux/kmemleak.h
index 057e95971014..e705467ddb47 100644
--- a/include/linux/kmemleak.h
+++ b/include/linux/kmemleak.h
@@ -21,6 +21,8 @@
#ifndef __KMEMLEAK_H
#define __KMEMLEAK_H
+#include <linux/slab.h>
+
#ifdef CONFIG_DEBUG_KMEMLEAK
extern void kmemleak_init(void) __ref;
--
cgit v1.2.1
From 2d48366b3ff745729815c15077508f8d7722ec5f Mon Sep 17 00:00:00 2001
From: Jianyu Zhan <nasa4836@gmail.com>
Date: Fri, 12 Dec 2014 16:55:43 -0800
Subject: mm, gfp: escalatedly define GFP_HIGHUSER and GFP_HIGHUSER_MOVABLE
GFP_USER, GFP_HIGHUSER and GFP_HIGHUSER_MOVABLE are escalatedly confined
defined, also implied by their names:
GFP_USER = GFP_USER
GFP_USER + __GFP_HIGHMEM = GFP_HIGHUSER
GFP_USER + __GFP_HIGHMEM + __GFP_MOVABLE = GFP_HIGHUSER_MOVABLE
So just make GFP_HIGHUSER and GFP_HIGHUSER_MOVABLE escalatedly defined to
reflect this fact. It also makes the definition clear and texturally warn
on any furture break-up of this escalated relastionship.
Signed-off-by: Jianyu Zhan <jianyu.zhan@emc.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/gfp.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 07d2699cdb51..b840e3b2770d 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -110,11 +110,8 @@ struct vm_area_struct;
#define GFP_TEMPORARY (__GFP_WAIT | __GFP_IO | __GFP_FS | \
__GFP_RECLAIMABLE)
#define GFP_USER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL)
-#define GFP_HIGHUSER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL | \
- __GFP_HIGHMEM)
-#define GFP_HIGHUSER_MOVABLE (__GFP_WAIT | __GFP_IO | __GFP_FS | \
- __GFP_HARDWALL | __GFP_HIGHMEM | \
- __GFP_MOVABLE)
+#define GFP_HIGHUSER (GFP_USER | __GFP_HIGHMEM)
+#define GFP_HIGHUSER_MOVABLE (GFP_HIGHUSER | __GFP_MOVABLE)
#define GFP_IOFS (__GFP_IO | __GFP_FS)
#define GFP_TRANSHUGE (GFP_HIGHUSER_MOVABLE | __GFP_COMP | \
__GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN | \
--
cgit v1.2.1
From eefa864b701d78dc9753c70a3540a2e9ae192595 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Fri, 12 Dec 2014 16:55:46 -0800
Subject: mm/page_ext: resurrect struct page extending code for debugging
When we debug something, we'd like to insert some information to every
page. For this purpose, we sometimes modify struct page itself. But,
this has drawbacks. First, it requires re-compile. This makes us
hesitate to use the powerful debug feature so development process is
slowed down. And, second, sometimes it is impossible to rebuild the
kernel due to third party module dependency. At third, system behaviour
would be largely different after re-compile, because it changes size of
struct page greatly and this structure is accessed by every part of
kernel. Keeping this as it is would be better to reproduce errornous
situation.
This feature is intended to overcome above mentioned problems. This
feature allocates memory for extended data per page in certain place
rather than the struct page itself. This memory can be accessed by the
accessor functions provided by this code. During the boot process, it
checks whether allocation of huge chunk of memory is needed or not. If
not, it avoids allocating memory at all. With this advantage, we can
include this feature into the kernel in default and can avoid rebuild and
solve related problems.
Until now, memcg uses this technique. But, now, memcg decides to embed
their variable to struct page itself and it's code to extend struct page
has been removed. I'd like to use this code to develop debug feature, so
this patch resurrect it.
To help these things to work well, this patch introduces two callbacks for
clients. One is the need callback which is mandatory if user wants to
avoid useless memory allocation at boot-time. The other is optional, init
callback, which is used to do proper initialization after memory is
allocated. Detailed explanation about purpose of these functions is in
code comment. Please refer it.
Others are completely same with previous extension code in memcg.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mmzone.h | 12 ++++++++++
include/linux/page_ext.h | 59 ++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 71 insertions(+)
create mode 100644 include/linux/page_ext.h
(limited to 'include')
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 3879d7664dfc..2f0856d14b21 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -722,6 +722,9 @@ typedef struct pglist_data {
int nr_zones;
#ifdef CONFIG_FLAT_NODE_MEM_MAP /* means !SPARSEMEM */
struct page *node_mem_map;
+#ifdef CONFIG_PAGE_EXTENSION
+ struct page_ext *node_page_ext;
+#endif
#endif
#ifndef CONFIG_NO_BOOTMEM
struct bootmem_data *bdata;
@@ -1075,6 +1078,7 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn)
#define SECTION_ALIGN_DOWN(pfn) ((pfn) & PAGE_SECTION_MASK)
struct page;
+struct page_ext;
struct mem_section {
/*
* This is, logically, a pointer to an array of struct
@@ -1092,6 +1096,14 @@ struct mem_section {
/* See declaration of similar field in struct zone */
unsigned long *pageblock_flags;
+#ifdef CONFIG_PAGE_EXTENSION
+ /*
+ * If !SPARSEMEM, pgdat doesn't have page_ext pointer. We use
+ * section. (see page_ext.h about this.)
+ */
+ struct page_ext *page_ext;
+ unsigned long pad;
+#endif
/*
* WARNING: mem_section must be a power-of-2 in size for the
* calculation and use of SECTION_ROOT_MASK to make sense.
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
new file mode 100644
index 000000000000..2ccc8b414e5c
--- /dev/null
+++ b/include/linux/page_ext.h
@@ -0,0 +1,59 @@
+#ifndef __LINUX_PAGE_EXT_H
+#define __LINUX_PAGE_EXT_H
+
+struct pglist_data;
+struct page_ext_operations {
+ bool (*need)(void);
+ void (*init)(void);
+};
+
+#ifdef CONFIG_PAGE_EXTENSION
+
+/*
+ * Page Extension can be considered as an extended mem_map.
+ * A page_ext page is associated with every page descriptor. The
+ * page_ext helps us add more information about the page.
+ * All page_ext are allocated at boot or memory hotplug event,
+ * then the page_ext for pfn always exists.
+ */
+struct page_ext {
+ unsigned long flags;
+};
+
+extern void pgdat_page_ext_init(struct pglist_data *pgdat);
+
+#ifdef CONFIG_SPARSEMEM
+static inline void page_ext_init_flatmem(void)
+{
+}
+extern void page_ext_init(void);
+#else
+extern void page_ext_init_flatmem(void);
+static inline void page_ext_init(void)
+{
+}
+#endif
+
+struct page_ext *lookup_page_ext(struct page *page);
+
+#else /* !CONFIG_PAGE_EXTENSION */
+struct page_ext;
+
+static inline void pgdat_page_ext_init(struct pglist_data *pgdat)
+{
+}
+
+static inline struct page_ext *lookup_page_ext(struct page *page)
+{
+ return NULL;
+}
+
+static inline void page_ext_init(void)
+{
+}
+
+static inline void page_ext_init_flatmem(void)
+{
+}
+#endif /* CONFIG_PAGE_EXTENSION */
+#endif /* __LINUX_PAGE_EXT_H */
--
cgit v1.2.1
From e30825f1869a75b29a69dc8e0aaaaccc492092cf Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Fri, 12 Dec 2014 16:55:49 -0800
Subject: mm/debug-pagealloc: prepare boottime configurable on/off
Until now, debug-pagealloc needs extra flags in struct page, so we need to
recompile whole source code when we decide to use it. This is really
painful, because it takes some time to recompile and sometimes rebuild is
not possible due to third party module depending on struct page. So, we
can't use this good feature in many cases.
Now, we have the page extension feature that allows us to insert extra
flags to outside of struct page. This gets rid of third party module
issue mentioned above. And, this allows us to determine if we need extra
memory for this page extension in boottime. With these property, we can
avoid using debug-pagealloc in boottime with low computational overhead in
the kernel built with CONFIG_DEBUG_PAGEALLOC. This will help our
development process greatly.
This patch is the preparation step to achive above goal. debug-pagealloc
originally uses extra field of struct page, but, after this patch, it will
use field of struct page_ext. Because memory for page_ext is allocated
later than initialization of page allocator in CONFIG_SPARSEMEM, we should
disable debug-pagealloc feature temporarily until initialization of
page_ext. This patch implements this.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 19 ++++++++++++++++++-
include/linux/mm_types.h | 4 ----
include/linux/page-debug-flags.h | 32 --------------------------------
include/linux/page_ext.h | 15 +++++++++++++++
4 files changed, 33 insertions(+), 37 deletions(-)
delete mode 100644 include/linux/page-debug-flags.h
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3b337efbe533..66560f1a0564 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -19,6 +19,7 @@
#include <linux/bit_spinlock.h>
#include <linux/shrinker.h>
#include <linux/resource.h>
+#include <linux/page_ext.h>
struct mempolicy;
struct anon_vma;
@@ -2155,20 +2156,36 @@ extern void copy_user_huge_page(struct page *dst, struct page *src,
unsigned int pages_per_huge_page);
#endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */
+extern struct page_ext_operations debug_guardpage_ops;
+extern struct page_ext_operations page_poisoning_ops;
+
#ifdef CONFIG_DEBUG_PAGEALLOC
extern unsigned int _debug_guardpage_minorder;
+extern bool _debug_guardpage_enabled;
static inline unsigned int debug_guardpage_minorder(void)
{
return _debug_guardpage_minorder;
}
+static inline bool debug_guardpage_enabled(void)
+{
+ return _debug_guardpage_enabled;
+}
+
static inline bool page_is_guard(struct page *page)
{
- return test_bit(PAGE_DEBUG_FLAG_GUARD, &page->debug_flags);
+ struct page_ext *page_ext;
+
+ if (!debug_guardpage_enabled())
+ return false;
+
+ page_ext = lookup_page_ext(page);
+ return test_bit(PAGE_EXT_DEBUG_GUARD, &page_ext->flags);
}
#else
static inline unsigned int debug_guardpage_minorder(void) { return 0; }
+static inline bool debug_guardpage_enabled(void) { return false; }
static inline bool page_is_guard(struct page *page) { return false; }
#endif /* CONFIG_DEBUG_PAGEALLOC */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index fc2daffa9db1..6d34aa266a8c 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -10,7 +10,6 @@
#include <linux/rwsem.h>
#include <linux/completion.h>
#include <linux/cpumask.h>
-#include <linux/page-debug-flags.h>
#include <linux/uprobes.h>
#include <linux/page-flags-layout.h>
#include <asm/page.h>
@@ -186,9 +185,6 @@ struct page {
void *virtual; /* Kernel virtual address (NULL if
not kmapped, ie. highmem) */
#endif /* WANT_PAGE_VIRTUAL */
-#ifdef CONFIG_WANT_PAGE_DEBUG_FLAGS
- unsigned long debug_flags; /* Use atomic bitops on this */
-#endif
#ifdef CONFIG_KMEMCHECK
/*
diff --git a/include/linux/page-debug-flags.h b/include/linux/page-debug-flags.h
deleted file mode 100644
index 22691f614043..000000000000
--- a/include/linux/page-debug-flags.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef LINUX_PAGE_DEBUG_FLAGS_H
-#define LINUX_PAGE_DEBUG_FLAGS_H
-
-/*
- * page->debug_flags bits:
- *
- * PAGE_DEBUG_FLAG_POISON is set for poisoned pages. This is used to
- * implement generic debug pagealloc feature. The pages are filled with
- * poison patterns and set this flag after free_pages(). The poisoned
- * pages are verified whether the patterns are not corrupted and clear
- * the flag before alloc_pages().
- */
-
-enum page_debug_flags {
- PAGE_DEBUG_FLAG_POISON, /* Page is poisoned */
- PAGE_DEBUG_FLAG_GUARD,
-};
-
-/*
- * Ensure that CONFIG_WANT_PAGE_DEBUG_FLAGS reliably
- * gets turned off when no debug features are enabling it!
- */
-
-#ifdef CONFIG_WANT_PAGE_DEBUG_FLAGS
-#if !defined(CONFIG_PAGE_POISONING) && \
- !defined(CONFIG_PAGE_GUARD) \
-/* && !defined(CONFIG_PAGE_DEBUG_SOMETHING_ELSE) && ... */
-#error WANT_PAGE_DEBUG_FLAGS is turned on with no debug features!
-#endif
-#endif /* CONFIG_WANT_PAGE_DEBUG_FLAGS */
-
-#endif /* LINUX_PAGE_DEBUG_FLAGS_H */
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
index 2ccc8b414e5c..61c0f05f9069 100644
--- a/include/linux/page_ext.h
+++ b/include/linux/page_ext.h
@@ -9,6 +9,21 @@ struct page_ext_operations {
#ifdef CONFIG_PAGE_EXTENSION
+/*
+ * page_ext->flags bits:
+ *
+ * PAGE_EXT_DEBUG_POISON is set for poisoned pages. This is used to
+ * implement generic debug pagealloc feature. The pages are filled with
+ * poison patterns and set this flag after free_pages(). The poisoned
+ * pages are verified whether the patterns are not corrupted and clear
+ * the flag before alloc_pages().
+ */
+
+enum page_ext_flags {
+ PAGE_EXT_DEBUG_POISON, /* Page is poisoned */
+ PAGE_EXT_DEBUG_GUARD,
+};
+
/*
* Page Extension can be considered as an extended mem_map.
* A page_ext page is associated with every page descriptor. The
--
cgit v1.2.1
From 031bc5743f158b2d5498294f489e534a31251626 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Fri, 12 Dec 2014 16:55:52 -0800
Subject: mm/debug-pagealloc: make debug-pagealloc boottime configurable
Now, we have prepared to avoid using debug-pagealloc in boottime. So
introduce new kernel-parameter to disable debug-pagealloc in boottime, and
makes related functions to be disabled in this case.
Only non-intuitive part is change of guard page functions. Because guard
page is effective only if debug-pagealloc is enabled, turning off
according to debug-pagealloc is reasonable thing to do.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 66560f1a0564..8b8d77a1532f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2061,7 +2061,22 @@ static inline void vm_stat_account(struct mm_struct *mm,
#endif /* CONFIG_PROC_FS */
#ifdef CONFIG_DEBUG_PAGEALLOC
-extern void kernel_map_pages(struct page *page, int numpages, int enable);
+extern bool _debug_pagealloc_enabled;
+extern void __kernel_map_pages(struct page *page, int numpages, int enable);
+
+static inline bool debug_pagealloc_enabled(void)
+{
+ return _debug_pagealloc_enabled;
+}
+
+static inline void
+kernel_map_pages(struct page *page, int numpages, int enable)
+{
+ if (!debug_pagealloc_enabled())
+ return;
+
+ __kernel_map_pages(page, numpages, enable);
+}
#ifdef CONFIG_HIBERNATION
extern bool kernel_page_present(struct page *page);
#endif /* CONFIG_HIBERNATION */
--
cgit v1.2.1
From 9a92a6ce6f842713ccd0025c5228fe8bea61234c Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Fri, 12 Dec 2014 16:55:58 -0800
Subject: stacktrace: introduce snprint_stack_trace for buffer output
Current stacktrace only have the function for console output. page_owner
that will be introduced in following patch needs to print the output of
stacktrace into the buffer for our own output format so so new function,
snprint_stack_trace(), is needed.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/stacktrace.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index 115b570e3bff..669045ab73f3 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -1,6 +1,8 @@
#ifndef __LINUX_STACKTRACE_H
#define __LINUX_STACKTRACE_H
+#include <linux/types.h>
+
struct task_struct;
struct pt_regs;
@@ -20,6 +22,8 @@ extern void save_stack_trace_tsk(struct task_struct *tsk,
struct stack_trace *trace);
extern void print_stack_trace(struct stack_trace *trace, int spaces);
+extern int snprint_stack_trace(char *buf, size_t size,
+ struct stack_trace *trace, int spaces);
#ifdef CONFIG_USER_STACKTRACE_SUPPORT
extern void save_stack_trace_user(struct stack_trace *trace);
@@ -32,6 +36,7 @@ extern void save_stack_trace_user(struct stack_trace *trace);
# define save_stack_trace_tsk(tsk, trace) do { } while (0)
# define save_stack_trace_user(trace) do { } while (0)
# define print_stack_trace(trace, spaces) do { } while (0)
+# define snprint_stack_trace(buf, size, trace, spaces) do { } while (0)
#endif
#endif
--
cgit v1.2.1
From 48c96a3685795e52903e60c7ee115e5e22e7d640 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Fri, 12 Dec 2014 16:56:01 -0800
Subject: mm/page_owner: keep track of page owners
This is the page owner tracking code which is introduced so far ago. It
is resident on Andrew's tree, though, nobody tried to upstream so it
remain as is. Our company uses this feature actively to debug memory leak
or to find a memory hogger so I decide to upstream this feature.
This functionality help us to know who allocates the page. When
allocating a page, we store some information about allocation in extra
memory. Later, if we need to know status of all pages, we can get and
analyze it from this stored information.
In previous version of this feature, extra memory is statically defined in
struct page, but, in this version, extra memory is allocated outside of
struct page. It enables us to turn on/off this feature at boottime
without considerable memory waste.
Although we already have tracepoint for tracing page allocation/free,
using it to analyze page owner is rather complex. We need to enlarge the
trace buffer for preventing overlapping until userspace program launched.
And, launched program continually dump out the trace buffer for later
analysis and it would change system behaviour with more possibility rather
than just keeping it in memory, so bad for debug.
Moreover, we can use page_owner feature further for various purposes. For
example, we can use it for fragmentation statistics implemented in this
patch. And, I also plan to implement some CMA failure debugging feature
using this interface.
I'd like to give the credit for all developers contributed this feature,
but, it's not easy because I don't know exact history. Sorry about that.
Below is people who has "Signed-off-by" in the patches in Andrew's tree.
Contributor:
Alexander Nyberg <alexn@dsv.su.se>
Mel Gorman <mgorman@suse.de>
Dave Hansen <dave@linux.vnet.ibm.com>
Minchan Kim <minchan@kernel.org>
Michal Nazarewicz <mina86@mina86.com>
Andrew Morton <akpm@linux-foundation.org>
Jungsoo Son <jungsoo.son@lge.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/page_ext.h | 10 ++++++++++
include/linux/page_owner.h | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 48 insertions(+)
create mode 100644 include/linux/page_owner.h
(limited to 'include')
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
index 61c0f05f9069..d2a2c84c72d0 100644
--- a/include/linux/page_ext.h
+++ b/include/linux/page_ext.h
@@ -1,6 +1,9 @@
#ifndef __LINUX_PAGE_EXT_H
#define __LINUX_PAGE_EXT_H
+#include <linux/types.h>
+#include <linux/stacktrace.h>
+
struct pglist_data;
struct page_ext_operations {
bool (*need)(void);
@@ -22,6 +25,7 @@ struct page_ext_operations {
enum page_ext_flags {
PAGE_EXT_DEBUG_POISON, /* Page is poisoned */
PAGE_EXT_DEBUG_GUARD,
+ PAGE_EXT_OWNER,
};
/*
@@ -33,6 +37,12 @@ enum page_ext_flags {
*/
struct page_ext {
unsigned long flags;
+#ifdef CONFIG_PAGE_OWNER
+ unsigned int order;
+ gfp_t gfp_mask;
+ struct stack_trace trace;
+ unsigned long trace_entries[8];
+#endif
};
extern void pgdat_page_ext_init(struct pglist_data *pgdat);
diff --git a/include/linux/page_owner.h b/include/linux/page_owner.h
new file mode 100644
index 000000000000..b48c3471c254
--- /dev/null
+++ b/include/linux/page_owner.h
@@ -0,0 +1,38 @@
+#ifndef __LINUX_PAGE_OWNER_H
+#define __LINUX_PAGE_OWNER_H
+
+#ifdef CONFIG_PAGE_OWNER
+extern bool page_owner_inited;
+extern struct page_ext_operations page_owner_ops;
+
+extern void __reset_page_owner(struct page *page, unsigned int order);
+extern void __set_page_owner(struct page *page,
+ unsigned int order, gfp_t gfp_mask);
+
+static inline void reset_page_owner(struct page *page, unsigned int order)
+{
+ if (likely(!page_owner_inited))
+ return;
+
+ __reset_page_owner(page, order);
+}
+
+static inline void set_page_owner(struct page *page,
+ unsigned int order, gfp_t gfp_mask)
+{
+ if (likely(!page_owner_inited))
+ return;
+
+ __set_page_owner(page, order, gfp_mask);
+}
+#else
+static inline void reset_page_owner(struct page *page, unsigned int order)
+{
+}
+static inline void set_page_owner(struct page *page,
+ unsigned int order, gfp_t gfp_mask)
+{
+}
+
+#endif /* CONFIG_PAGE_OWNER */
+#endif /* __LINUX_PAGE_OWNER_H */
--
cgit v1.2.1
From f5f302e21257ebb0c074bbafc37606c26d28cc3d Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <dave@stgolabs.net>
Date: Fri, 12 Dec 2014 16:56:10 -0800
Subject: mm,vmacache: count number of system-wide flushes
These flushes deal with sequence number overflows, such as for long lived
threads. These are rare, but interesting from a debugging PoV. As such,
display the number of flushes when vmacache debugging is enabled.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/vm_event_item.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 730334cdf037..9246d32dc973 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -90,6 +90,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
#ifdef CONFIG_DEBUG_VM_VMACACHE
VMACACHE_FIND_CALLS,
VMACACHE_FIND_HITS,
+ VMACACHE_FULL_FLUSHES,
#endif
NR_VM_EVENT_ITEMS
};
--
cgit v1.2.1
From 6b4f7799c6a5703ac6b8c0649f4c22f00fa07513 Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Fri, 12 Dec 2014 16:56:13 -0800
Subject: mm: vmscan: invoke slab shrinkers from shrink_zone()
The slab shrinkers are currently invoked from the zonelist walkers in
kswapd, direct reclaim, and zone reclaim, all of which roughly gauge the
eligible LRU pages and assemble a nodemask to pass to NUMA-aware
shrinkers, which then again have to walk over the nodemask. This is
redundant code, extra runtime work, and fairly inaccurate when it comes to
the estimation of actually scannable LRU pages. The code duplication will
only get worse when making the shrinkers cgroup-aware and requiring them
to have out-of-band cgroup hierarchy walks as well.
Instead, invoke the shrinkers from shrink_zone(), which is where all
reclaimers end up, to avoid this duplication.
Take the count for eligible LRU pages out of get_scan_count(), which
considers many more factors than just the availability of swap space, like
zone_reclaimable_pages() currently does. Accumulate the number over all
visited lruvecs to get the per-zone value.
Some nodes have multiple zones due to memory addressing restrictions. To
avoid putting too much pressure on the shrinkers, only invoke them once
for each such node, using the class zone of the allocation as the pivot
zone.
For now, this integrates the slab shrinking better into the reclaim logic
and gets rid of duplicative invocations from kswapd, direct reclaim, and
zone reclaim. It also prepares for cgroup-awareness, allowing
memcg-capable shrinkers to be added at the lruvec level without much
duplication of both code and runtime work.
This changes kswapd behavior, which used to invoke the shrinkers for each
zone, but with scan ratios gathered from the entire node, resulting in
meaningless pressure quantities on multi-zone nodes.
Zone reclaim behavior also changes. It used to shrink slabs until the
same amount of pages were shrunk as were reclaimed from the LRUs. Now it
merely invokes the shrinkers once with the zone's scan ratio, which makes
the shrinkers go easier on caches that implement aging and would prefer
feeding back pressure from recently used slab objects to unused LRU pages.
[vdavydov@parallels.com: assure class zone is populated]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 6 +++---
include/linux/shrinker.h | 2 --
2 files changed, 3 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8b8d77a1532f..c0a67b894c4c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2110,9 +2110,9 @@ int drop_caches_sysctl_handler(struct ctl_table *, int,
void __user *, size_t *, loff_t *);
#endif
-unsigned long shrink_slab(struct shrink_control *shrink,
- unsigned long nr_pages_scanned,
- unsigned long lru_pages);
+unsigned long shrink_node_slabs(gfp_t gfp_mask, int nid,
+ unsigned long nr_scanned,
+ unsigned long nr_eligible);
#ifndef CONFIG_MMU
#define randomize_va_space 0
diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 68c097077ef0..f4aee75f00b1 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -18,8 +18,6 @@ struct shrink_control {
*/
unsigned long nr_to_scan;
- /* shrink from these nodes */
- nodemask_t nodes_to_scan;
/* current node being shrunk (for NUMA aware shrinkers) */
int nid;
};
--
cgit v1.2.1
From d003f371b27016354c392464819530d47a915765 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Fri, 12 Dec 2014 16:56:24 -0800
Subject: oom: don't assume that a coredumping thread will exit soon
oom_kill.c assumes that PF_EXITING task should exit and free the memory
soon. This is wrong in many ways and one important case is the coredump.
A task can sleep in exit_mm() "forever" while the coredumping sub-thread
can need more memory.
Change the PF_EXITING checks to take SIGNAL_GROUP_COREDUMP into account,
we add the new trivial helper for that.
Note: this is only the first step, this patch doesn't try to solve other
problems. The SIGNAL_GROUP_COREDUMP check is obviously racy, a task can
participate in coredump after it was already observed in PF_EXITING state,
so TIF_MEMDIE (which also blocks oom-killer) still can be wrongly set.
fatal_signal_pending() can be true because of SIGNAL_GROUP_COREDUMP so
out_of_memory() and mem_cgroup_out_of_memory() shouldn't blindly trust it.
And even the name/usage of the new helper is confusing, an exiting thread
can only free its ->mm if it is the only/last task in thread group.
[akpm@linux-foundation.org: add comment]
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/oom.h | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'include')
diff --git a/include/linux/oom.h b/include/linux/oom.h
index e8d6e1058723..853698c721f7 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -92,6 +92,17 @@ static inline bool oom_gfp_allowed(gfp_t gfp_mask)
extern struct task_struct *find_lock_task_mm(struct task_struct *p);
+static inline bool task_will_free_mem(struct task_struct *task)
+{
+ /*
+ * A coredumping process may sleep for an extended period in exit_mm(),
+ * so the oom killer cannot assume that the process will promptly exit
+ * and release memory.
+ */
+ return (task->flags & PF_EXITING) &&
+ !(task->signal->flags & SIGNAL_GROUP_COREDUMP);
+}
+
/* sysctls */
extern int sysctl_oom_dump_tasks;
extern int sysctl_oom_kill_allocating_task;
--
cgit v1.2.1
From 8135be5a8012f4c7e95218563855e16c09a8271b Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@parallels.com>
Date: Fri, 12 Dec 2014 16:56:38 -0800
Subject: memcg: fix possible use-after-free in memcg_kmem_get_cache()
Suppose task @t that belongs to a memory cgroup @memcg is going to
allocate an object from a kmem cache @c. The copy of @c corresponding to
@memcg, @mc, is empty. Then if kmem_cache_alloc races with the memory
cgroup destruction we can access the memory cgroup's copy of the cache
after it was destroyed:
CPU0 CPU1
---- ----
[ current=@t
@mc->memcg_params->nr_pages=0 ]
kmem_cache_alloc(@c):
call memcg_kmem_get_cache(@c);
proceed to allocation from @mc:
alloc a page for @mc:
...
move @t from @memcg
destroy @memcg:
mem_cgroup_css_offline(@memcg):
memcg_unregister_all_caches(@memcg):
kmem_cache_destroy(@mc)
add page to @mc
We could fix this issue by taking a reference to a per-memcg cache, but
that would require adding a per-cpu reference counter to per-memcg caches,
which would look cumbersome.
Instead, let's take a reference to a memory cgroup, which already has a
per-cpu reference counter, in the beginning of kmem_cache_alloc to be
dropped in the end, and move per memcg caches destruction from css offline
to css free. As a side effect, per-memcg caches will be destroyed not one
by one, but all at once when the last page accounted to the memory cgroup
is freed. This doesn't sound as a high price for code readability though.
Note, this patch does add some overhead to the kmem_cache_alloc hot path,
but it is pretty negligible - it's just a function call plus a per cpu
counter decrement, which is comparable to what we already have in
memcg_kmem_get_cache. Besides, it's only relevant if there are memory
cgroups with kmem accounting enabled. I don't think we can find a way to
handle this race w/o it, because alloc_page called from kmem_cache_alloc
may sleep so we can't flush all pending kmallocs w/o reference counting.
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memcontrol.h | 14 ++++++++++++--
include/linux/slab.h | 2 --
2 files changed, 12 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index b74942a9e22f..7c95af8d552c 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -400,8 +400,8 @@ int memcg_cache_id(struct mem_cgroup *memcg);
void memcg_update_array_size(int num_groups);
-struct kmem_cache *
-__memcg_kmem_get_cache(struct kmem_cache *cachep);
+struct kmem_cache *__memcg_kmem_get_cache(struct kmem_cache *cachep);
+void __memcg_kmem_put_cache(struct kmem_cache *cachep);
int __memcg_charge_slab(struct kmem_cache *cachep, gfp_t gfp, int order);
void __memcg_uncharge_slab(struct kmem_cache *cachep, int order);
@@ -494,6 +494,12 @@ memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp)
return __memcg_kmem_get_cache(cachep);
}
+
+static __always_inline void memcg_kmem_put_cache(struct kmem_cache *cachep)
+{
+ if (memcg_kmem_enabled())
+ __memcg_kmem_put_cache(cachep);
+}
#else
#define for_each_memcg_cache_index(_idx) \
for (; NULL; )
@@ -528,6 +534,10 @@ memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp)
{
return cachep;
}
+
+static inline void memcg_kmem_put_cache(struct kmem_cache *cachep)
+{
+}
#endif /* CONFIG_MEMCG_KMEM */
#endif /* _LINUX_MEMCONTROL_H */
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 8a2457d42fc8..9a139b637069 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -493,7 +493,6 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
* @memcg: pointer to the memcg this cache belongs to
* @list: list_head for the list of all caches in this memcg
* @root_cache: pointer to the global, root cache, this cache was derived from
- * @nr_pages: number of pages that belongs to this cache.
*/
struct memcg_cache_params {
bool is_root_cache;
@@ -506,7 +505,6 @@ struct memcg_cache_params {
struct mem_cgroup *memcg;
struct list_head list;
struct kmem_cache *root_cache;
- atomic_t nr_pages;
};
};
};
--
cgit v1.2.1
From 51f39a1f0cea1cacf8c787f652f26dfee9611874 Mon Sep 17 00:00:00 2001
From: David Drysdale <drysdale@google.com>
Date: Fri, 12 Dec 2014 16:57:29 -0800
Subject: syscalls: implement execveat() system call
This patchset adds execveat(2) for x86, and is derived from Meredydd
Luff's patch from Sept 2012 (https://lkml.org/lkml/2012/9/11/528).
The primary aim of adding an execveat syscall is to allow an
implementation of fexecve(3) that does not rely on the /proc filesystem,
at least for executables (rather than scripts). The current glibc version
of fexecve(3) is implemented via /proc, which causes problems in sandboxed
or otherwise restricted environments.
Given the desire for a /proc-free fexecve() implementation, HPA suggested
(https://lkml.org/lkml/2006/7/11/556) that an execveat(2) syscall would be
an appropriate generalization.
Also, having a new syscall means that it can take a flags argument without
back-compatibility concerns. The current implementation just defines the
AT_EMPTY_PATH and AT_SYMLINK_NOFOLLOW flags, but other flags could be
added in future -- for example, flags for new namespaces (as suggested at
https://lkml.org/lkml/2006/7/11/474).
Related history:
- https://lkml.org/lkml/2006/12/27/123 is an example of someone
realizing that fexecve() is likely to fail in a chroot environment.
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514043 covered
documenting the /proc requirement of fexecve(3) in its manpage, to
"prevent other people from wasting their time".
- https://bugzilla.redhat.com/show_bug.cgi?id=241609 described a
problem where a process that did setuid() could not fexecve()
because it no longer had access to /proc/self/fd; this has since
been fixed.
This patch (of 4):
Add a new execveat(2) system call. execveat() is to execve() as openat()
is to open(): it takes a file descriptor that refers to a directory, and
resolves the filename relative to that.
In addition, if the filename is empty and AT_EMPTY_PATH is specified,
execveat() executes the file to which the file descriptor refers. This
replicates the functionality of fexecve(), which is a system call in other
UNIXen, but in Linux glibc it depends on opening "/proc/self/fd/<fd>" (and
so relies on /proc being mounted).
The filename fed to the executed program as argv[0] (or the name of the
script fed to a script interpreter) will be of the form "/dev/fd/<fd>"
(for an empty filename) or "/dev/fd/<fd>/<filename>", effectively
reflecting how the executable was found. This does however mean that
execution of a script in a /proc-less environment won't work; also, script
execution via an O_CLOEXEC file descriptor fails (as the file will not be
accessible after exec).
Based on patches by Meredydd Luff.
Signed-off-by: David Drysdale <drysdale@google.com>
Cc: Meredydd Luff <meredydd@senatehouse.org>
Cc: Shuah Khan <shuah.kh@samsung.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rich Felker <dalias@aerifal.cx>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/binfmts.h | 4 ++++
include/linux/compat.h | 3 +++
include/linux/fs.h | 1 +
include/linux/sched.h | 4 ++++
include/linux/syscalls.h | 5 +++++
include/uapi/asm-generic/unistd.h | 4 +++-
6 files changed, 20 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 61f29e5ea840..576e4639ca60 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -53,6 +53,10 @@ struct linux_binprm {
#define BINPRM_FLAGS_EXECFD_BIT 1
#define BINPRM_FLAGS_EXECFD (1 << BINPRM_FLAGS_EXECFD_BIT)
+/* filename of the binary will be inaccessible after exec */
+#define BINPRM_FLAGS_PATH_INACCESSIBLE_BIT 2
+#define BINPRM_FLAGS_PATH_INACCESSIBLE (1 << BINPRM_FLAGS_PATH_INACCESSIBLE_BIT)
+
/* Function parameter for binfmt->coredump */
struct coredump_params {
const siginfo_t *siginfo;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index e6494261eaff..7450ca2ac1fc 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -357,6 +357,9 @@ asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int);
asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
const compat_uptr_t __user *envp);
+asmlinkage long compat_sys_execveat(int dfd, const char __user *filename,
+ const compat_uptr_t __user *argv,
+ const compat_uptr_t __user *envp, int flags);
asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 1d1838de6882..4193a0bd99b0 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2096,6 +2096,7 @@ extern int vfs_open(const struct path *, struct file *, const struct cred *);
extern struct file * dentry_open(const struct path *, int, const struct cred *);
extern int filp_close(struct file *, fl_owner_t id);
+extern struct filename *getname_flags(const char __user *, int, int *);
extern struct filename *getname(const char __user *);
extern struct filename *getname_kernel(const char *);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4cfdbcf8cf56..8db31ef98d2f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2485,6 +2485,10 @@ extern void do_group_exit(int);
extern int do_execve(struct filename *,
const char __user * const __user *,
const char __user * const __user *);
+extern int do_execveat(int, struct filename *,
+ const char __user * const __user *,
+ const char __user * const __user *,
+ int);
extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
struct task_struct *fork_idle(int);
extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index c9afdc7a7f84..85893d744901 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -877,4 +877,9 @@ asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
asmlinkage long sys_getrandom(char __user *buf, size_t count,
unsigned int flags);
asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
+
+asmlinkage long sys_execveat(int dfd, const char __user *filename,
+ const char __user *const __user *argv,
+ const char __user *const __user *envp, int flags);
+
#endif
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 22749c134117..e016bd9b1a04 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -707,9 +707,11 @@ __SYSCALL(__NR_getrandom, sys_getrandom)
__SYSCALL(__NR_memfd_create, sys_memfd_create)
#define __NR_bpf 280
__SYSCALL(__NR_bpf, sys_bpf)
+#define __NR_execveat 281
+__SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
#undef __NR_syscalls
-#define __NR_syscalls 281
+#define __NR_syscalls 282
/*
* All syscalls below here should go away really,
--
cgit v1.2.1
From 89e3f90995b370fa46922eece62ea23f039a202d Mon Sep 17 00:00:00 2001
From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Fri, 12 Dec 2014 16:57:57 -0800
Subject: ratelimit: add initialization macro
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/ratelimit.h | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h
index 0a260d8a18bf..18102529254e 100644
--- a/include/linux/ratelimit.h
+++ b/include/linux/ratelimit.h
@@ -17,14 +17,20 @@ struct ratelimit_state {
unsigned long begin;
};
-#define DEFINE_RATELIMIT_STATE(name, interval_init, burst_init) \
- \
- struct ratelimit_state name = { \
+#define RATELIMIT_STATE_INIT(name, interval_init, burst_init) { \
.lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock), \
.interval = interval_init, \
.burst = burst_init, \
}
+#define RATELIMIT_STATE_INIT_DISABLED \
+ RATELIMIT_STATE_INIT(ratelimit_state, 0, DEFAULT_RATELIMIT_BURST)
+
+#define DEFINE_RATELIMIT_STATE(name, interval_init, burst_init) \
+ \
+ struct ratelimit_state name = \
+ RATELIMIT_STATE_INIT(name, interval_init, burst_init) \
+
static inline void ratelimit_state_init(struct ratelimit_state *rs,
int interval, int burst)
{
--
cgit v1.2.1
From 6adc4a22f20bbf3bbc754f1ec8c82be5dfb5c71a Mon Sep 17 00:00:00 2001
From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Fri, 12 Dec 2014 16:58:00 -0800
Subject: fault-inject: add ratelimit option
Current debug levels are not optimal. Especially if one want to provoke
big numbers of faults(broken device simulator) then any verbose level will
produce giant numbers of identical logging messages. Let's add ratelimit
parameter for that purpose.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/fault-inject.h | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h
index c6f996f2abb6..798fad9e420d 100644
--- a/include/linux/fault-inject.h
+++ b/include/linux/fault-inject.h
@@ -5,6 +5,7 @@
#include <linux/types.h>
#include <linux/debugfs.h>
+#include <linux/ratelimit.h>
#include <linux/atomic.h>
/*
@@ -25,14 +26,18 @@ struct fault_attr {
unsigned long reject_end;
unsigned long count;
+ struct ratelimit_state ratelimit_state;
+ struct dentry *dname;
};
-#define FAULT_ATTR_INITIALIZER { \
- .interval = 1, \
- .times = ATOMIC_INIT(1), \
- .require_end = ULONG_MAX, \
- .stacktrace_depth = 32, \
- .verbose = 2, \
+#define FAULT_ATTR_INITIALIZER { \
+ .interval = 1, \
+ .times = ATOMIC_INIT(1), \
+ .require_end = ULONG_MAX, \
+ .stacktrace_depth = 32, \
+ .ratelimit_state = RATELIMIT_STATE_INIT_DISABLED, \
+ .verbose = 2, \
+ .dname = NULL, \
}
#define DECLARE_FAULT_ATTR(name) struct fault_attr name = FAULT_ATTR_INITIALIZER
--
cgit v1.2.1
From e843e7d2c88b7db107a86bd2c7145dc715c058f4 Mon Sep 17 00:00:00 2001
From: Manfred Spraul <manfred@colorfullife.com>
Date: Fri, 12 Dec 2014 16:58:14 -0800
Subject: ipc/sem.c: increase SEMMSL, SEMMNI, SEMOPM
a)
SysV can be abused to allocate locked kernel memory. For most systems, a
small limit doesn't make sense, see the discussion with regards to SHMMAX.
Therefore: Increase the sysv sem limits so that all known applications
will work with these defaults.
b)
With regards to the maximum supported:
Some of the specified hard limits are not correct anymore, therefore the
patch updates the documentation.
- SEMMNI must stay below IPCMNI, which is 32768.
As for SHMMAX: Stay a bit below this limit.
- SEMMSL was limited to 8k, to ensure that the kmalloc for the kernel array
was limited to 16 kB (order=2)
This doesn't apply anymore:
- the allocation size isn't sizeof(short)*nsems anymore.
- ipc_alloc falls back to vmalloc
- SEMOPM should stay below 1000, to limit the kmalloc in semtimedop() to an
order=1 allocation.
Therefore: Leave it at 500 (order=0 allocation).
Note:
If an administrator must limit the memory allocations, then he can set the
values as necessary.
Or he can disable sysv entirely (as e.g. done by Android).
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Acked-by: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/uapi/linux/sem.h | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/sem.h b/include/uapi/linux/sem.h
index 541fce03b50c..dd73b908b2f3 100644
--- a/include/uapi/linux/sem.h
+++ b/include/uapi/linux/sem.h
@@ -63,10 +63,22 @@ struct seminfo {
int semaem;
};
-#define SEMMNI 128 /* <= IPCMNI max # of semaphore identifiers */
-#define SEMMSL 250 /* <= 8 000 max num of semaphores per id */
+/*
+ * SEMMNI, SEMMSL and SEMMNS are default values which can be
+ * modified by sysctl.
+ * The values has been chosen to be larger than necessary for any
+ * known configuration.
+ *
+ * SEMOPM should not be increased beyond 1000, otherwise there is the
+ * risk that semop()/semtimedop() fails due to kernel memory fragmentation when
+ * allocating the sop array.
+ */
+
+
+#define SEMMNI 32000 /* <= IPCMNI max # of semaphore identifiers */
+#define SEMMSL 32000 /* <= INT_MAX max num of semaphores per id */
#define SEMMNS (SEMMNI*SEMMSL) /* <= INT_MAX max # of semaphores in system */
-#define SEMOPM 32 /* <= 1 000 max num of ops per semop call */
+#define SEMOPM 500 /* <= 1 000 max num of ops per semop call */
#define SEMVMX 32767 /* <= 32767 semaphore maximum value */
#define SEMAEM SEMVMX /* adjust on exit max value */
--
cgit v1.2.1
From 0050ee059f7fc86b1df2527aaa14ed5dc72f9973 Mon Sep 17 00:00:00 2001
From: Manfred Spraul <manfred@colorfullife.com>
Date: Fri, 12 Dec 2014 16:58:17 -0800
Subject: ipc/msg: increase MSGMNI, remove scaling
SysV can be abused to allocate locked kernel memory. For most systems, a
small limit doesn't make sense, see the discussion with regards to SHMMAX.
Therefore: increase MSGMNI to the maximum supported.
And: If we ignore the risk of locking too much memory, then an automatic
scaling of MSGMNI doesn't make sense. Therefore the logic can be removed.
The code preserves auto_msgmni to avoid breaking any user space applications
that expect that the value exists.
Notes:
1) If an administrator must limit the memory allocations, then he can set
MSGMNI as necessary.
Or he can disable sysv entirely (as e.g. done by Android).
2) MSGMAX and MSGMNB are intentionally not increased, as these values are used
to control latency vs. throughput:
If MSGMNB is large, then msgsnd() just returns and more messages can be queued
before a task switch to a task that calls msgrcv() is forced.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/ipc_namespace.h | 20 --------------------
include/uapi/linux/msg.h | 28 ++++++++++++++++++++--------
2 files changed, 20 insertions(+), 28 deletions(-)
(limited to 'include')
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 35e7eca4e33b..e365d5ec69cb 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -7,15 +7,6 @@
#include <linux/notifier.h>
#include <linux/nsproxy.h>
-/*
- * ipc namespace events
- */
-#define IPCNS_MEMCHANGED 0x00000001 /* Notify lowmem size changed */
-#define IPCNS_CREATED 0x00000002 /* Notify new ipc namespace created */
-#define IPCNS_REMOVED 0x00000003 /* Notify ipc namespace removed */
-
-#define IPCNS_CALLBACK_PRI 0
-
struct user_namespace;
struct ipc_ids {
@@ -38,7 +29,6 @@ struct ipc_namespace {
unsigned int msg_ctlmni;
atomic_t msg_bytes;
atomic_t msg_hdrs;
- int auto_msgmni;
size_t shm_ctlmax;
size_t shm_ctlall;
@@ -77,18 +67,8 @@ extern atomic_t nr_ipc_ns;
extern spinlock_t mq_lock;
#ifdef CONFIG_SYSVIPC
-extern int register_ipcns_notifier(struct ipc_namespace *);
-extern int cond_register_ipcns_notifier(struct ipc_namespace *);
-extern void unregister_ipcns_notifier(struct ipc_namespace *);
-extern int ipcns_notify(unsigned long);
extern void shm_destroy_orphaned(struct ipc_namespace *ns);
#else /* CONFIG_SYSVIPC */
-static inline int register_ipcns_notifier(struct ipc_namespace *ns)
-{ return 0; }
-static inline int cond_register_ipcns_notifier(struct ipc_namespace *ns)
-{ return 0; }
-static inline void unregister_ipcns_notifier(struct ipc_namespace *ns) { }
-static inline int ipcns_notify(unsigned long l) { return 0; }
static inline void shm_destroy_orphaned(struct ipc_namespace *ns) {}
#endif /* CONFIG_SYSVIPC */
diff --git a/include/uapi/linux/msg.h b/include/uapi/linux/msg.h
index a70375526578..f51c8001dbe5 100644
--- a/include/uapi/linux/msg.h
+++ b/include/uapi/linux/msg.h
@@ -51,16 +51,28 @@ struct msginfo {
};
/*
- * Scaling factor to compute msgmni:
- * the memory dedicated to msg queues (msgmni * msgmnb) should occupy
- * at most 1/MSG_MEM_SCALE of the lowmem (see the formula in ipc/msg.c):
- * up to 8MB : msgmni = 16 (MSGMNI)
- * 4 GB : msgmni = 8K
- * more than 16 GB : msgmni = 32K (IPCMNI)
+ * MSGMNI, MSGMAX and MSGMNB are default values which can be
+ * modified by sysctl.
+ *
+ * MSGMNI is the upper limit for the number of messages queues per
+ * namespace.
+ * It has been chosen to be as large possible without facilitating
+ * scenarios where userspace causes overflows when adjusting the limits via
+ * operations of the form retrieve current limit; add X; update limit".
+ *
+ * MSGMNB is the default size of a new message queue. Non-root tasks can
+ * decrease the size with msgctl(IPC_SET), root tasks
+ * (actually: CAP_SYS_RESOURCE) can both increase and decrease the queue
+ * size. The optimal value is application dependent.
+ * 16384 is used because it was always used (since 0.99.10)
+ *
+ * MAXMAX is the maximum size of an individual message, it's a global
+ * (per-namespace) limit that applies for all message queues.
+ * It's set to 1/2 of MSGMNB, to ensure that at least two messages fit into
+ * the queue. This is also an arbitrary choice (since 2.6.0).
*/
-#define MSG_MEM_SCALE 32
-#define MSGMNI 16 /* <= IPCMNI */ /* max # of msg queue identifiers */
+#define MSGMNI 32000 /* <= IPCMNI */ /* max # of msg queue identifiers */
#define MSGMAX 8192 /* <= INT_MAX */ /* max size of message (bytes) */
#define MSGMNB 16384 /* <= INT_MAX */ /* default max size of a message queue */
--
cgit v1.2.1
From 0809ab69a2782afac8c4d7f3d35cd123050aab9a Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Fri, 12 Dec 2014 16:58:36 -0800
Subject: fsnotify: unify inode and mount marks handling
There's a lot of common code in inode and mount marks handling. Factor it
out to a common helper function.
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Eric Paris <eparis@redhat.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/fsnotify_backend.h | 24 ++++--------------------
1 file changed, 4 insertions(+), 20 deletions(-)
(limited to 'include')
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index ca060d7c4fa6..442847a02b8f 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -196,24 +196,6 @@ struct fsnotify_group {
#define FSNOTIFY_EVENT_PATH 1
#define FSNOTIFY_EVENT_INODE 2
-/*
- * Inode specific fields in an fsnotify_mark
- */
-struct fsnotify_inode_mark {
- struct inode *inode; /* inode this mark is associated with */
- struct hlist_node i_list; /* list of marks by inode->i_fsnotify_marks */
- struct list_head free_i_list; /* tmp list used when freeing this mark */
-};
-
-/*
- * Mount point specific fields in an fsnotify_mark
- */
-struct fsnotify_vfsmount_mark {
- struct vfsmount *mnt; /* vfsmount this mark is associated with */
- struct hlist_node m_list; /* list of marks by inode->i_fsnotify_marks */
- struct list_head free_m_list; /* tmp list used when freeing this mark */
-};
-
/*
* a mark is simply an object attached to an in core inode which allows an
* fsnotify listener to indicate they are either no longer interested in events
@@ -232,9 +214,11 @@ struct fsnotify_mark {
struct fsnotify_group *group; /* group this mark is for */
struct list_head g_list; /* list of marks by group->i_fsnotify_marks */
spinlock_t lock; /* protect group and inode */
+ struct hlist_node obj_list; /* list of marks for inode / vfsmount */
+ struct list_head free_list; /* tmp list used when freeing this mark */
union {
- struct fsnotify_inode_mark i;
- struct fsnotify_vfsmount_mark m;
+ struct inode *inode; /* inode this mark is associated with */
+ struct vfsmount *mnt; /* vfsmount this mark is associated with */
};
__u32 ignored_mask; /* events types to ignore */
#define FSNOTIFY_MARK_FLAG_INODE 0x01
--
cgit v1.2.1
From 37d469e7673a663cbf38360beb1eaa3224c9d272 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Fri, 12 Dec 2014 16:58:39 -0800
Subject: fsnotify: remove destroy_list from fsnotify_mark
destroy_list is used to track marks which still need waiting for srcu
period end before they can be freed. However by the time mark is added to
destroy_list it isn't in group's list of marks anymore and thus we can
reuse fsnotify_mark->g_list for queueing into destroy_list. This saves
two pointers for each fsnotify_mark.
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Eric Paris <eparis@redhat.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/fsnotify_backend.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 442847a02b8f..0f313f93c586 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -212,7 +212,11 @@ struct fsnotify_mark {
* in kernel that found and may be using this mark. */
atomic_t refcnt; /* active things looking at this mark */
struct fsnotify_group *group; /* group this mark is for */
- struct list_head g_list; /* list of marks by group->i_fsnotify_marks */
+ struct list_head g_list; /* list of marks by group->i_fsnotify_marks
+ * Also reused for queueing mark into
+ * destroy_list when it's waiting for
+ * the end of SRCU period before it can
+ * be freed */
spinlock_t lock; /* protect group and inode */
struct hlist_node obj_list; /* list of marks for inode / vfsmount */
struct list_head free_list; /* tmp list used when freeing this mark */
@@ -227,7 +231,6 @@ struct fsnotify_mark {
#define FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY 0x08
#define FSNOTIFY_MARK_FLAG_ALIVE 0x10
unsigned int flags; /* vfsmount or inode mark? */
- struct list_head destroy_list;
void (*free_mark)(struct fsnotify_mark *mark); /* called on final put+free */
};
--
cgit v1.2.1
From 6c51ec4d18d24b2ffa69de5d60bebaeb4f8e2398 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Fri, 12 Dec 2014 16:58:42 -0800
Subject: percpu: remove __get_cpu_var and __raw_get_cpu_var macros
No user is left in the kernel source tree. Therefore we can drop the
definitions.
This is the final merge of the transition away from __get_cpu_var. After
this patch the kernel will not build if anyone uses __get_cpu_var.
Signed-off-by: Christoph Lameter <cl@linux.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/percpu-defs.h | 2 --
1 file changed, 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 420032d41d27..57f3a1c550dc 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -254,8 +254,6 @@ do { \
#endif /* CONFIG_SMP */
#define per_cpu(var, cpu) (*per_cpu_ptr(&(var), cpu))
-#define __raw_get_cpu_var(var) (*raw_cpu_ptr(&(var)))
-#define __get_cpu_var(var) (*this_cpu_ptr(&(var)))
/*
* Must be an lvalue. Since @var must be a simple identifier,
--
cgit v1.2.1
From e4a0d3e720e7e508749c1439b5ba3aff56c92976 Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@parallels.com>
Date: Thu, 18 Sep 2014 19:56:17 +0400
Subject: aio: Make it possible to remap aio ring
There are actually two issues this patch addresses. Let me start with
the one I tried to solve in the beginning.
So, in the checkpoint-restore project (criu) we try to dump tasks'
state and restore one back exactly as it was. One of the tasks' state
bits is rings set up with io_setup() call. There's (almost) no problems
in dumping them, there's a problem restoring them -- if I dump a task
with aio ring originally mapped at address A, I want to restore one
back at exactly the same address A. Unfortunately, the io_setup() does
not allow for that -- it mmaps the ring at whatever place mm finds
appropriate (it calls do_mmap_pgoff() with zero address and without
the MAP_FIXED flag).
To make restore possible I'm going to mremap() the freshly created ring
into the address A (under which it was seen before dump). The problem is
that the ring's virtual address is passed back to the user-space as the
context ID and this ID is then used as search key by all the other io_foo()
calls. Reworking this ID to be just some integer doesn't seem to work, as
this value is already used by libaio as a pointer using which this library
accesses memory for aio meta-data.
So, to make restore work we need to make sure that
a) ring is mapped at desired virtual address
b) kioctx->user_id matches this value
Having said that, the patch makes mremap() on aio region update the
kioctx's user_id and mmap_base values.
Here appears the 2nd issue I mentioned in the beginning of this mail.
If (regardless of the C/R dances I do) someone creates an io context
with io_setup(), then mremap()-s the ring and then destroys the context,
the kill_ioctx() routine will call munmap() on wrong (old) address.
This will result in a) aio ring remaining in memory and b) some other
vma get unexpectedly unmapped.
What do you think?
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
---
include/linux/fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9ab779e8a63c..85f378c55c26 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1497,6 +1497,7 @@ struct file_operations {
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
+ void (*mremap)(struct file *, struct vm_area_struct *);
int (*open) (struct inode *, struct file *);
int (*flush) (struct file *, fl_owner_t id);
int (*release) (struct inode *, struct file *);
--
cgit v1.2.1
From 0dce3771fdd1db03c6f498594a34bba5a6d1f870 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 11 Dec 2014 13:46:52 +0200
Subject: virtio_pci: add VIRTIO_PCI_NO_LEGACY
Add macro to disable all legacy register defines.
Helpful to make sure legacy macros don't leak
through into modern code.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/uapi/linux/virtio_pci.h | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
index e5ec1caab82a..35b552c7f330 100644
--- a/include/uapi/linux/virtio_pci.h
+++ b/include/uapi/linux/virtio_pci.h
@@ -41,6 +41,8 @@
#include <linux/virtio_config.h>
+#ifndef VIRTIO_PCI_NO_LEGACY
+
/* A 32-bit r/o bitmask of the features supported by the host */
#define VIRTIO_PCI_HOST_FEATURES 0
@@ -67,16 +69,11 @@
* a read-and-acknowledge. */
#define VIRTIO_PCI_ISR 19
-/* The bit of the ISR which indicates a device configuration change. */
-#define VIRTIO_PCI_ISR_CONFIG 0x2
-
/* MSI-X registers: only enabled if MSI-X is enabled. */
/* A 16-bit vector for configuration changes. */
#define VIRTIO_MSI_CONFIG_VECTOR 20
/* A 16-bit vector for selected queue notifications. */
#define VIRTIO_MSI_QUEUE_VECTOR 22
-/* Vector value used to disable MSI for queue */
-#define VIRTIO_MSI_NO_VECTOR 0xffff
/* The remaining space is defined by each driver as the per-driver
* configuration space */
@@ -94,4 +91,12 @@
/* The alignment to use between consumer and producer parts of vring.
* x86 pagesize again. */
#define VIRTIO_PCI_VRING_ALIGN 4096
+
+#endif /* VIRTIO_PCI_NO_LEGACY */
+
+/* The bit of the ISR which indicates a device configuration change. */
+#define VIRTIO_PCI_ISR_CONFIG 0x2
+/* Vector value used to disable MSI for queue */
+#define VIRTIO_MSI_NO_VECTOR 0xffff
+
#endif
--
cgit v1.2.1
From d71de9ec6ba806104439d3a669befda84757b5af Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Sun, 14 Dec 2014 16:55:44 +0200
Subject: virtio: core support for config generation
virtio 1.0 spec says:
Drivers MUST NOT assume reads from fields greater than 32 bits wide are
atomic, nor are reads from multiple fields: drivers SHOULD read device
configuration space fields like so:
u32 before, after;
do {
before = get_config_generation(device);
// read config entry/entries.
after = get_config_generation(device);
} while (after != before);
Do exactly this, for transports that support it.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/linux/virtio_config.h | 32 ++++++++++++++++++++++++++++----
1 file changed, 28 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index a61cd37f088c..ca3ed78e5ec7 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -19,6 +19,9 @@
* offset: the offset of the configuration field
* buf: the buffer to read the field value from.
* len: the length of the buffer
+ * @generation: config generation counter
+ * vdev: the virtio_device
+ * Returns the config generation counter
* @get_status: read the status byte
* vdev: the virtio_device
* Returns the status byte
@@ -60,6 +63,7 @@ struct virtio_config_ops {
void *buf, unsigned len);
void (*set)(struct virtio_device *vdev, unsigned offset,
const void *buf, unsigned len);
+ u32 (*generation)(struct virtio_device *vdev);
u8 (*get_status)(struct virtio_device *vdev);
void (*set_status)(struct virtio_device *vdev, u8 status);
void (*reset)(struct virtio_device *vdev);
@@ -301,14 +305,33 @@ static inline u8 virtio_cread8(struct virtio_device *vdev, unsigned int offset)
return ret;
}
+/* Read @count fields, @bytes each. */
+static inline void __virtio_cread_many(struct virtio_device *vdev,
+ unsigned int offset,
+ void *buf, size_t count, size_t bytes)
+{
+ u32 old, gen = vdev->config->generation ?
+ vdev->config->generation(vdev) : 0;
+ int i;
+
+ do {
+ old = gen;
+
+ for (i = 0; i < count; i++)
+ vdev->config->get(vdev, offset + bytes * i,
+ buf + i * bytes, bytes);
+
+ gen = vdev->config->generation ?
+ vdev->config->generation(vdev) : 0;
+ } while (gen != old);
+}
+
+
static inline void virtio_cread_bytes(struct virtio_device *vdev,
unsigned int offset,
void *buf, size_t len)
{
- int i;
-
- for (i = 0; i < len; i++)
- vdev->config->get(vdev, offset + i, buf + i, 1);
+ __virtio_cread_many(vdev, offset, buf, len, 1);
}
static inline void virtio_cwrite8(struct virtio_device *vdev,
@@ -352,6 +375,7 @@ static inline u64 virtio_cread64(struct virtio_device *vdev,
{
u64 ret;
vdev->config->get(vdev, offset, &ret, sizeof(ret));
+ __virtio_cread_many(vdev, offset, &ret, 1, sizeof(ret));
return virtio64_to_cpu(vdev, (__force __virtio64)ret);
}
--
cgit v1.2.1
From 05971120fca43e0357789a14b3386bb56eef2201 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Fri, 12 Dec 2014 21:19:23 +0100
Subject: arm/arm64: KVM: Require in-kernel vgic for the arch timers
It is curently possible to run a VM with architected timers support
without creating an in-kernel VGIC, which will result in interrupts from
the virtual timer going nowhere.
To address this issue, move the architected timers initialization to the
time when we run a VCPU for the first time, and then only initialize
(and enable) the architected timers if we have a properly created and
initialized in-kernel VGIC.
When injecting interrupts from the virtual timer to the vgic, the
current setup should ensure that this never calls an on-demand init of
the VGIC, which is the only call path that could return an error from
kvm_vgic_inject_irq(), so capture the return value and raise a warning
if there's an error there.
We also change the kvm_timer_init() function from returning an int to be
a void function, since the function always succeeds.
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
include/kvm/arm_arch_timer.h | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
(limited to 'include')
diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h
index ad9db6045b2f..b3f45a578344 100644
--- a/include/kvm/arm_arch_timer.h
+++ b/include/kvm/arm_arch_timer.h
@@ -60,7 +60,8 @@ struct arch_timer_cpu {
#ifdef CONFIG_KVM_ARM_TIMER
int kvm_timer_hyp_init(void);
-int kvm_timer_init(struct kvm *kvm);
+void kvm_timer_enable(struct kvm *kvm);
+void kvm_timer_init(struct kvm *kvm);
void kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
const struct kvm_irq_level *irq);
void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu);
@@ -77,11 +78,8 @@ static inline int kvm_timer_hyp_init(void)
return 0;
};
-static inline int kvm_timer_init(struct kvm *kvm)
-{
- return 0;
-}
-
+static inline void kvm_timer_enable(struct kvm *kvm) {}
+static inline void kvm_timer_init(struct kvm *kvm) {}
static inline void kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
const struct kvm_irq_level *irq) {}
static inline void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu) {}
--
cgit v1.2.1
From 4f7ad5211eb4d331a54f3cc6832883e5e7e95eea Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Sun, 14 Dec 2014 23:13:55 +0100
Subject: SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks
depending on CONFIG_PM_RUNTIME may now be changed to depend on
CONFIG_PM.
Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere under
drivers/scsi/ and in include/scsi/scsi_device.h.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Christoph Hellwig <hch@lst.de>
---
include/scsi/scsi_device.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 6364e23454dd..3a4edd1f7dbb 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -441,13 +441,13 @@ static inline int scsi_execute_req(struct scsi_device *sdev,
extern void sdev_disable_disk_events(struct scsi_device *sdev);
extern void sdev_enable_disk_events(struct scsi_device *sdev);
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
extern int scsi_autopm_get_device(struct scsi_device *);
extern void scsi_autopm_put_device(struct scsi_device *);
#else
static inline int scsi_autopm_get_device(struct scsi_device *d) { return 0; }
static inline void scsi_autopm_put_device(struct scsi_device *d) {}
-#endif /* CONFIG_PM_RUNTIME */
+#endif /* CONFIG_PM */
static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
{
--
cgit v1.2.1
From 5f893b2639b21ffe6834b1aebba392c37d2b83f9 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 12 Dec 2014 20:05:10 -0500
Subject: tracing: Move enabling tracepoints to just after rcu_init()
Enabling tracepoints at boot up can be very useful. The tracepoint
can be initialized right after RCU has been. There's no need to
wait for the early_initcall() to be called. That's too late for some
things that can use tracepoints for debugging. Move the logic to
enable tracepoints out of the initcalls and into init/main.c to
right after rcu_init().
This also allows trace_printk() to be used early too.
Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412121539300.16494@nanos
Link: http://lkml.kernel.org/r/20141214164104.307127356@goodmis.org
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index ed501953f0b2..f4bc14b7d444 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -39,6 +39,12 @@
# define FTRACE_FORCE_LIST_FUNC 0
#endif
+/* Main tracing buffer and events set up */
+#ifdef CONFIG_TRACING
+void trace_init(void);
+#else
+static inline void trace_init(void) { }
+#endif
struct module;
struct ftrace_hash;
--
cgit v1.2.1
From 0daa2302968c13b657118d6ac92471f8fd2f3f28 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 12 Dec 2014 22:27:10 -0500
Subject: tracing: Add tp_printk cmdline to have tracepoints go to printk()
Add the kernel command line tp_printk option that will have tracepoints
that are active sent to printk() as well as to the trace buffer.
Passing "tp_printk" will activate this. To turn it off, the sysctl
/proc/sys/kernel/tracepoint_printk can have '0' echoed into it. Note,
this only works if the cmdline option is used. Echoing 1 into the sysctl
file without the cmdline option will have no affect.
Note, this is a dangerous option. Having high frequency tracepoints send
their data to printk() can possibly cause a live lock. This is another
reason why this is only active if the command line option is used.
Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412121539300.16494@nanos
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index f4bc14b7d444..1da602982cf9 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -879,6 +879,7 @@ static inline int test_tsk_trace_graph(struct task_struct *tsk)
enum ftrace_dump_mode;
extern enum ftrace_dump_mode ftrace_dump_on_oops;
+extern int tracepoint_printk;
extern void disable_trace_on_warning(void);
extern int __disable_trace_on_warning;
--
cgit v1.2.1
From b97a8a90067896f99f0d636dbc2b89a953123fad Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Fri, 12 Dec 2014 00:36:06 +0200
Subject: vringh: 64 bit features
Pass u64 everywhere.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/linux/vringh.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/vringh.h b/include/linux/vringh.h
index 749cde28728b..f696dd0b6472 100644
--- a/include/linux/vringh.h
+++ b/include/linux/vringh.h
@@ -105,7 +105,7 @@ struct vringh_kiov {
#define VRINGH_IOV_ALLOCATED 0x8000000
/* Helpers for userspace vrings. */
-int vringh_init_user(struct vringh *vrh, u32 features,
+int vringh_init_user(struct vringh *vrh, u64 features,
unsigned int num, bool weak_barriers,
struct vring_desc __user *desc,
struct vring_avail __user *avail,
@@ -167,7 +167,7 @@ bool vringh_notify_enable_user(struct vringh *vrh);
void vringh_notify_disable_user(struct vringh *vrh);
/* Helpers for kernelspace vrings. */
-int vringh_init_kern(struct vringh *vrh, u32 features,
+int vringh_init_kern(struct vringh *vrh, u64 features,
unsigned int num, bool weak_barriers,
struct vring_desc *desc,
struct vring_avail *avail,
--
cgit v1.2.1
From b9f7ac8c72894c19bf258a54ecaa708df4ffbe80 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Fri, 12 Dec 2014 01:10:49 +0200
Subject: vringh: update for virtio 1.0 APIs
When switching everything over to virtio 1.0 memory access APIs,
I missed converting vringh.
Fortunately, it's straight-forward.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/linux/vringh.h | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
(limited to 'include')
diff --git a/include/linux/vringh.h b/include/linux/vringh.h
index f696dd0b6472..a3fa537e717a 100644
--- a/include/linux/vringh.h
+++ b/include/linux/vringh.h
@@ -24,12 +24,16 @@
#ifndef _LINUX_VRINGH_H
#define _LINUX_VRINGH_H
#include <uapi/linux/virtio_ring.h>
+#include <linux/virtio_byteorder.h>
#include <linux/uio.h>
#include <linux/slab.h>
#include <asm/barrier.h>
/* virtio_ring with information needed for host access. */
struct vringh {
+ /* Everything is little endian */
+ bool little_endian;
+
/* Guest publishes used event idx (note: we always do). */
bool event_indices;
@@ -222,4 +226,33 @@ static inline void vringh_notify(struct vringh *vrh)
vrh->notify(vrh);
}
+static inline u16 vringh16_to_cpu(const struct vringh *vrh, __virtio16 val)
+{
+ return __virtio16_to_cpu(vrh->little_endian, val);
+}
+
+static inline __virtio16 cpu_to_vringh16(const struct vringh *vrh, u16 val)
+{
+ return __cpu_to_virtio16(vrh->little_endian, val);
+}
+
+static inline u32 vringh32_to_cpu(const struct vringh *vrh, __virtio32 val)
+{
+ return __virtio32_to_cpu(vrh->little_endian, val);
+}
+
+static inline __virtio32 cpu_to_vringh32(const struct vringh *vrh, u32 val)
+{
+ return __cpu_to_virtio32(vrh->little_endian, val);
+}
+
+static inline u64 vringh64_to_cpu(const struct vringh *vrh, __virtio64 val)
+{
+ return __virtio64_to_cpu(vrh->little_endian, val);
+}
+
+static inline __virtio64 cpu_to_vringh64(const struct vringh *vrh, u64 val)
+{
+ return __cpu_to_virtio64(vrh->little_endian, val);
+}
#endif /* _LINUX_VRINGH_H */
--
cgit v1.2.1
From 6f8e853d18a98ee95832ffebfaa288d42ae28cd5 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 12 Dec 2014 15:22:00 +0200
Subject: ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
While the change for determine_rate clock operation was merged,
the OMAP counterpart using these calls was overlooked for some reason,
and caused boot failures on at least OMAP4 platforms. Fixed by updating
the DPLL API calls to use the new parameters.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Fixes: 646cafc6aa ("clk: Change clk_ops->determine_rate")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Reported-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
include/linux/clk/ti.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 74e5341463c9..55ef529a0dbf 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -264,7 +264,7 @@ int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw,
long omap3_noncore_dpll_determine_rate(struct clk_hw *hw,
unsigned long rate,
unsigned long *best_parent_rate,
- struct clk **best_parent_clk);
+ struct clk_hw **best_parent_clk);
unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
unsigned long parent_rate);
long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
@@ -273,7 +273,7 @@ long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw,
unsigned long rate,
unsigned long *best_parent_rate,
- struct clk **best_parent_clk);
+ struct clk_hw **best_parent_clk);
u8 omap2_init_dpll_parent(struct clk_hw *hw);
unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
--
cgit v1.2.1
From 968e78dd96443e2cc963c493070574778805e76a Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:11 +0200
Subject: IB/mlx5: Enhance UMR support to allow partial page table update
The current UMR interface doesn't allow partial updates to a memory
region's page tables. This patch changes the interface to allow that.
It also changes the way the UMR operation validates the memory
region's state. When set, IB_SEND_UMR_FAIL_IF_FREE will cause the UMR
operation to fail if the MKEY is in the free state. When it is
unchecked the operation will check that it isn't in the free state.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/device.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index ea4f1c46f761..fa07bfda0e15 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -180,6 +180,15 @@ enum {
MLX5_MKEY_MASK_FREE = 1ull << 29,
};
+enum {
+ MLX5_UMR_TRANSLATION_OFFSET_EN = (1 << 4),
+
+ MLX5_UMR_CHECK_NOT_FREE = (1 << 5),
+ MLX5_UMR_CHECK_FREE = (2 << 5),
+
+ MLX5_UMR_INLINE = (1 << 7),
+};
+
enum mlx5_event {
MLX5_EVENT_TYPE_COMP = 0x0,
@@ -776,6 +785,10 @@ struct mlx5_query_eq_mbox_out {
struct mlx5_eq_context ctx;
};
+enum {
+ MLX5_MKEY_STATUS_FREE = 1 << 6,
+};
+
struct mlx5_mkey_seg {
/* This is a two bit field occupying bits 31-30.
* bit 31 is always 0,
--
cgit v1.2.1
From 406f9e5fa9a7a60b42e676841e39f2d752266814 Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:12 +0200
Subject: IB/core: Replace ib_umem's offset field with a full address
In order to allow umems that do not pin memory, we need the umem to
keep track of its region's address.
This makes the offset field redundant, and so this patch removes it.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/rdma/ib_umem.h | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h
index a2bf41e0bde9..7ed6d4ff58dc 100644
--- a/include/rdma/ib_umem.h
+++ b/include/rdma/ib_umem.h
@@ -42,7 +42,7 @@ struct ib_ucontext;
struct ib_umem {
struct ib_ucontext *context;
size_t length;
- int offset;
+ unsigned long address;
int page_size;
int writable;
int hugetlb;
@@ -55,6 +55,29 @@ struct ib_umem {
int npages;
};
+/* Returns the offset of the umem start relative to the first page. */
+static inline int ib_umem_offset(struct ib_umem *umem)
+{
+ return umem->address & ((unsigned long)umem->page_size - 1);
+}
+
+/* Returns the first page of an ODP umem. */
+static inline unsigned long ib_umem_start(struct ib_umem *umem)
+{
+ return umem->address - ib_umem_offset(umem);
+}
+
+/* Returns the address of the page after the last one of an ODP umem. */
+static inline unsigned long ib_umem_end(struct ib_umem *umem)
+{
+ return PAGE_ALIGN(umem->address + umem->length);
+}
+
+static inline size_t ib_umem_num_pages(struct ib_umem *umem)
+{
+ return (ib_umem_end(umem) - ib_umem_start(umem)) >> PAGE_SHIFT;
+}
+
#ifdef CONFIG_INFINIBAND_USER_MEM
struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
--
cgit v1.2.1
From c5d76f130b286682b64c659eaf6af701e3d79a7b Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:13 +0200
Subject: IB/core: Add umem function to read data from user-space
In some drivers there's a need to read data from a user space area
that was pinned using ib_umem when running from a different process
context.
The ib_umem_copy_from function allows reading data from the physical
pages pinned in the ib_umem struct.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/rdma/ib_umem.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h
index 7ed6d4ff58dc..45bb04bc88cd 100644
--- a/include/rdma/ib_umem.h
+++ b/include/rdma/ib_umem.h
@@ -84,6 +84,8 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
size_t size, int access, int dmasync);
void ib_umem_release(struct ib_umem *umem);
int ib_umem_page_count(struct ib_umem *umem);
+int ib_umem_copy_from(void *dst, struct ib_umem *umem, size_t offset,
+ size_t length);
#else /* CONFIG_INFINIBAND_USER_MEM */
--
cgit v1.2.1
From c1395a2a8c01e8a919e47d64eb3d23d00e824b8b Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:14 +0200
Subject: IB/mlx5: Add function to read WQE from user-space
Add a helper function mlx5_ib_read_user_wqe to read information from
user-space owned work queues. The function will be used in a later
patch by the page-fault handling code in mlx5_ib.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
[ Add stub for ib_umem_copy_from() for CONFIG_INFINIBAND_USER_MEM=n
- Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/qp.h | 3 +++
include/rdma/ib_umem.h | 5 ++++-
2 files changed, 7 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 3fa075daeb1d..67f4b9660b06 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -189,6 +189,9 @@ struct mlx5_wqe_ctrl_seg {
__be32 imm;
};
+#define MLX5_WQE_CTRL_DS_MASK 0x3f
+#define MLX5_WQE_DS_UNITS 16
+
struct mlx5_wqe_xrc_seg {
__be32 xrc_srqn;
u8 rsvd[12];
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h
index 45bb04bc88cd..a51f4091489a 100644
--- a/include/rdma/ib_umem.h
+++ b/include/rdma/ib_umem.h
@@ -98,7 +98,10 @@ static inline struct ib_umem *ib_umem_get(struct ib_ucontext *context,
}
static inline void ib_umem_release(struct ib_umem *umem) { }
static inline int ib_umem_page_count(struct ib_umem *umem) { return 0; }
-
+static inline int ib_umem_copy_from(void *dst, struct ib_umem *umem, size_t offset,
+ size_t length) {
+ return -EINVAL;
+}
#endif /* CONFIG_INFINIBAND_USER_MEM */
#endif /* IB_UMEM_H */
--
cgit v1.2.1
From 5a77abf9a97a7ecc8fb0f6bf4ad411fb12b02f31 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 11 Dec 2014 17:04:15 +0200
Subject: IB/core: Add support for extended query device caps
Add extensible query device capabilities verb to allow adding new features.
ib_uverbs_ex_query_device is added and copy_query_dev_fields is used to
copy capability fields to be used by both ib_uverbs_query_device and
ib_uverbs_ex_query_device.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/rdma/ib_verbs.h | 5 ++++-
include/uapi/rdma/ib_user_verbs.h | 14 +++++++++++++-
2 files changed, 17 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 470a011d6fa4..97a999f9e4d8 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1662,7 +1662,10 @@ static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t
static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len)
{
- return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0;
+ size_t copy_sz;
+
+ copy_sz = min_t(size_t, len, udata->outlen);
+ return copy_to_user(udata->outbuf, src, copy_sz) ? -EFAULT : 0;
}
/**
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 26daf55ff76e..e8a96071e352 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -90,8 +90,9 @@ enum {
};
enum {
+ IB_USER_VERBS_EX_CMD_QUERY_DEVICE = IB_USER_VERBS_CMD_QUERY_DEVICE,
IB_USER_VERBS_EX_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD,
- IB_USER_VERBS_EX_CMD_DESTROY_FLOW
+ IB_USER_VERBS_EX_CMD_DESTROY_FLOW,
};
/*
@@ -201,6 +202,17 @@ struct ib_uverbs_query_device_resp {
__u8 reserved[4];
};
+struct ib_uverbs_ex_query_device {
+ __u32 comp_mask;
+ __u32 reserved;
+};
+
+struct ib_uverbs_ex_query_device_resp {
+ struct ib_uverbs_query_device_resp base;
+ __u32 comp_mask;
+ __u32 reserved;
+};
+
struct ib_uverbs_query_port {
__u64 response;
__u8 port_num;
--
cgit v1.2.1
From 860f10a799c83e38a69d5a69d80da5312a4c4106 Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagig@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:16 +0200
Subject: IB/core: Add flags for on demand paging support
* Add a configuration option for enable on-demand paging support in
the infiniband subsystem (CONFIG_INFINIBAND_ON_DEMAND_PAGING). In a
later patch, this configuration option will select the MMU_NOTIFIER
configuration option to enable mmu notifiers.
* Add a flag for on demand paging (ODP) support in the IB device capabilities.
* Add a flag to request ODP MR in the access flags to reg_mr.
* Fail registrations done with the ODP flag when the low-level driver
doesn't support this.
* Change the conditions in which an MR will be writable to explicitly
specify the access flags. This is to avoid making an MR writable just
because it is an ODP MR.
* Add a ODP capabilities to the extended query device verb.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/rdma/ib_verbs.h | 28 ++++++++++++++++++++++++++--
include/uapi/rdma/ib_user_verbs.h | 15 +++++++++++++++
2 files changed, 41 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 97a999f9e4d8..a41bc5a39ebf 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -123,7 +123,8 @@ enum ib_device_cap_flags {
IB_DEVICE_MEM_WINDOW_TYPE_2A = (1<<23),
IB_DEVICE_MEM_WINDOW_TYPE_2B = (1<<24),
IB_DEVICE_MANAGED_FLOW_STEERING = (1<<29),
- IB_DEVICE_SIGNATURE_HANDOVER = (1<<30)
+ IB_DEVICE_SIGNATURE_HANDOVER = (1<<30),
+ IB_DEVICE_ON_DEMAND_PAGING = (1<<31),
};
enum ib_signature_prot_cap {
@@ -143,6 +144,27 @@ enum ib_atomic_cap {
IB_ATOMIC_GLOB
};
+enum ib_odp_general_cap_bits {
+ IB_ODP_SUPPORT = 1 << 0,
+};
+
+enum ib_odp_transport_cap_bits {
+ IB_ODP_SUPPORT_SEND = 1 << 0,
+ IB_ODP_SUPPORT_RECV = 1 << 1,
+ IB_ODP_SUPPORT_WRITE = 1 << 2,
+ IB_ODP_SUPPORT_READ = 1 << 3,
+ IB_ODP_SUPPORT_ATOMIC = 1 << 4,
+};
+
+struct ib_odp_caps {
+ uint64_t general_caps;
+ struct {
+ uint32_t rc_odp_caps;
+ uint32_t uc_odp_caps;
+ uint32_t ud_odp_caps;
+ } per_transport_caps;
+};
+
struct ib_device_attr {
u64 fw_ver;
__be64 sys_image_guid;
@@ -186,6 +208,7 @@ struct ib_device_attr {
u8 local_ca_ack_delay;
int sig_prot_cap;
int sig_guard_cap;
+ struct ib_odp_caps odp_caps;
};
enum ib_mtu {
@@ -1073,7 +1096,8 @@ enum ib_access_flags {
IB_ACCESS_REMOTE_READ = (1<<2),
IB_ACCESS_REMOTE_ATOMIC = (1<<3),
IB_ACCESS_MW_BIND = (1<<4),
- IB_ZERO_BASED = (1<<5)
+ IB_ZERO_BASED = (1<<5),
+ IB_ACCESS_ON_DEMAND = (1<<6),
};
struct ib_phys_buf {
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index e8a96071e352..4275b961bf60 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -202,15 +202,30 @@ struct ib_uverbs_query_device_resp {
__u8 reserved[4];
};
+enum {
+ IB_USER_VERBS_EX_QUERY_DEVICE_ODP = 1ULL << 0,
+};
+
struct ib_uverbs_ex_query_device {
__u32 comp_mask;
__u32 reserved;
};
+struct ib_uverbs_odp_caps {
+ __u64 general_caps;
+ struct {
+ __u32 rc_odp_caps;
+ __u32 uc_odp_caps;
+ __u32 ud_odp_caps;
+ } per_transport_caps;
+ __u32 reserved;
+};
+
struct ib_uverbs_ex_query_device_resp {
struct ib_uverbs_query_device_resp base;
__u32 comp_mask;
__u32 reserved;
+ struct ib_uverbs_odp_caps odp_caps;
};
struct ib_uverbs_query_port {
--
cgit v1.2.1
From 8ada2c1c0c1d75a60723cd2ca7d49c594a146af6 Mon Sep 17 00:00:00 2001
From: Shachar Raindel <raindel@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:17 +0200
Subject: IB/core: Add support for on demand paging regions
* Extend the umem struct to keep the ODP related data.
* Allocate and initialize the ODP related information in the umem
(page_list, dma_list) and freeing as needed in the end of the run.
* Store a reference to the process PID struct in the ucontext. Used to
safely obtain the task_struct and the mm during fault handling,
without preventing the task destruction if needed.
* Add 2 helper functions: ib_umem_odp_map_dma_pages and
ib_umem_odp_unmap_dma_pages. These functions get the DMA addresses
of specific pages of the umem (and, currently, pin them).
* Support for page faults only - IB core will keep the reference on
the pages used and call put_page when freeing an ODP umem
area. Invalidations support will be added in a later patch.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/rdma/ib_umem.h | 2 +
include/rdma/ib_umem_odp.h | 97 ++++++++++++++++++++++++++++++++++++++++++++++
include/rdma/ib_verbs.h | 2 +
3 files changed, 101 insertions(+)
create mode 100644 include/rdma/ib_umem_odp.h
(limited to 'include')
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h
index a51f4091489a..2d83cfd7e6ce 100644
--- a/include/rdma/ib_umem.h
+++ b/include/rdma/ib_umem.h
@@ -38,6 +38,7 @@
#include <linux/workqueue.h>
struct ib_ucontext;
+struct ib_umem_odp;
struct ib_umem {
struct ib_ucontext *context;
@@ -50,6 +51,7 @@ struct ib_umem {
struct pid *pid;
struct mm_struct *mm;
unsigned long diff;
+ struct ib_umem_odp *odp_data;
struct sg_table sg_head;
int nmap;
int npages;
diff --git a/include/rdma/ib_umem_odp.h b/include/rdma/ib_umem_odp.h
new file mode 100644
index 000000000000..b5a2df1923b7
--- /dev/null
+++ b/include/rdma/ib_umem_odp.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2014 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef IB_UMEM_ODP_H
+#define IB_UMEM_ODP_H
+
+#include <rdma/ib_umem.h>
+
+struct ib_umem_odp {
+ /*
+ * An array of the pages included in the on-demand paging umem.
+ * Indices of pages that are currently not mapped into the device will
+ * contain NULL.
+ */
+ struct page **page_list;
+ /*
+ * An array of the same size as page_list, with DMA addresses mapped
+ * for pages the pages in page_list. The lower two bits designate
+ * access permissions. See ODP_READ_ALLOWED_BIT and
+ * ODP_WRITE_ALLOWED_BIT.
+ */
+ dma_addr_t *dma_list;
+ /*
+ * The umem_mutex protects the page_list and dma_list fields of an ODP
+ * umem, allowing only a single thread to map/unmap pages.
+ */
+ struct mutex umem_mutex;
+ void *private; /* for the HW driver to use. */
+};
+
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+
+int ib_umem_odp_get(struct ib_ucontext *context, struct ib_umem *umem);
+
+void ib_umem_odp_release(struct ib_umem *umem);
+
+/*
+ * The lower 2 bits of the DMA address signal the R/W permissions for
+ * the entry. To upgrade the permissions, provide the appropriate
+ * bitmask to the map_dma_pages function.
+ *
+ * Be aware that upgrading a mapped address might result in change of
+ * the DMA address for the page.
+ */
+#define ODP_READ_ALLOWED_BIT (1<<0ULL)
+#define ODP_WRITE_ALLOWED_BIT (1<<1ULL)
+
+#define ODP_DMA_ADDR_MASK (~(ODP_READ_ALLOWED_BIT | ODP_WRITE_ALLOWED_BIT))
+
+int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 start_offset, u64 bcnt,
+ u64 access_mask, unsigned long current_seq);
+
+void ib_umem_odp_unmap_dma_pages(struct ib_umem *umem, u64 start_offset,
+ u64 bound);
+
+#else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
+
+static inline int ib_umem_odp_get(struct ib_ucontext *context,
+ struct ib_umem *umem)
+{
+ return -EINVAL;
+}
+
+static inline void ib_umem_odp_release(struct ib_umem *umem) {}
+
+#endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
+
+#endif /* IB_UMEM_ODP_H */
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index a41bc5a39ebf..3af5dcad1b69 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1151,6 +1151,8 @@ struct ib_ucontext {
struct list_head xrcd_list;
struct list_head rule_list;
int closing;
+
+ struct pid *tgid;
};
struct ib_uobject {
--
cgit v1.2.1
From 882214e2b12860bff1ccff15a3ec2bbb29d58c02 Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:18 +0200
Subject: IB/core: Implement support for MMU notifiers regarding on demand
paging regions
* Add an interval tree implementation for ODP umems. Create an
interval tree for each ucontext (including a count of the number of
ODP MRs in this context, semaphore, etc.), and register ODP umems in
the interval tree.
* Add MMU notifiers handling functions, using the interval tree to
notify only the relevant umems and underlying MRs.
* Register to receive MMU notifier events from the MM subsystem upon
ODP MR registration (and unregister accordingly).
* Add a completion object to synchronize the destruction of ODP umems.
* Add mechanism to abort page faults when there's a concurrent invalidation.
The way we synchronize between concurrent invalidations and page
faults is by keeping a counter of currently running invalidations, and
a sequence number that is incremented whenever an invalidation is
caught. The page fault code checks the counter and also verifies that
the sequence number hasn't progressed before it updates the umem's
page tables. This is similar to what the kvm module does.
In order to prevent the case where we register a umem in the middle of
an ongoing notifier, we also keep a per ucontext counter of the total
number of active mmu notifiers. We only enable new umems when all the
running notifiers complete.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Yuval Dagan <yuvalda@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/rdma/ib_umem_odp.h | 65 +++++++++++++++++++++++++++++++++++++++++++++-
include/rdma/ib_verbs.h | 19 ++++++++++++++
2 files changed, 83 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/rdma/ib_umem_odp.h b/include/rdma/ib_umem_odp.h
index b5a2df1923b7..3da0b167041b 100644
--- a/include/rdma/ib_umem_odp.h
+++ b/include/rdma/ib_umem_odp.h
@@ -34,6 +34,13 @@
#define IB_UMEM_ODP_H
#include <rdma/ib_umem.h>
+#include <rdma/ib_verbs.h>
+#include <linux/interval_tree.h>
+
+struct umem_odp_node {
+ u64 __subtree_last;
+ struct rb_node rb;
+};
struct ib_umem_odp {
/*
@@ -51,10 +58,27 @@ struct ib_umem_odp {
dma_addr_t *dma_list;
/*
* The umem_mutex protects the page_list and dma_list fields of an ODP
- * umem, allowing only a single thread to map/unmap pages.
+ * umem, allowing only a single thread to map/unmap pages. The mutex
+ * also protects access to the mmu notifier counters.
*/
struct mutex umem_mutex;
void *private; /* for the HW driver to use. */
+
+ /* When false, use the notifier counter in the ucontext struct. */
+ bool mn_counters_active;
+ int notifiers_seq;
+ int notifiers_count;
+
+ /* A linked list of umems that don't have private mmu notifier
+ * counters yet. */
+ struct list_head no_private_counters;
+ struct ib_umem *umem;
+
+ /* Tree tracking */
+ struct umem_odp_node interval_tree;
+
+ struct completion notifier_completion;
+ int dying;
};
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
@@ -82,6 +106,45 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 start_offset, u64 bcnt,
void ib_umem_odp_unmap_dma_pages(struct ib_umem *umem, u64 start_offset,
u64 bound);
+void rbt_ib_umem_insert(struct umem_odp_node *node, struct rb_root *root);
+void rbt_ib_umem_remove(struct umem_odp_node *node, struct rb_root *root);
+typedef int (*umem_call_back)(struct ib_umem *item, u64 start, u64 end,
+ void *cookie);
+/*
+ * Call the callback on each ib_umem in the range. Returns the logical or of
+ * the return values of the functions called.
+ */
+int rbt_ib_umem_for_each_in_range(struct rb_root *root, u64 start, u64 end,
+ umem_call_back cb, void *cookie);
+
+struct umem_odp_node *rbt_ib_umem_iter_first(struct rb_root *root,
+ u64 start, u64 last);
+struct umem_odp_node *rbt_ib_umem_iter_next(struct umem_odp_node *node,
+ u64 start, u64 last);
+
+static inline int ib_umem_mmu_notifier_retry(struct ib_umem *item,
+ unsigned long mmu_seq)
+{
+ /*
+ * This code is strongly based on the KVM code from
+ * mmu_notifier_retry. Should be called with
+ * the relevant locks taken (item->odp_data->umem_mutex
+ * and the ucontext umem_mutex semaphore locked for read).
+ */
+
+ /* Do not allow page faults while the new ib_umem hasn't seen a state
+ * with zero notifiers yet, and doesn't have its own valid set of
+ * private counters. */
+ if (!item->odp_data->mn_counters_active)
+ return 1;
+
+ if (unlikely(item->odp_data->notifiers_count))
+ return 1;
+ if (item->odp_data->notifiers_seq != mmu_seq)
+ return 1;
+ return 0;
+}
+
#else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
static inline int ib_umem_odp_get(struct ib_ucontext *context,
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 3af5dcad1b69..0d74f1de99aa 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -51,6 +51,7 @@
#include <uapi/linux/if_ether.h>
#include <linux/atomic.h>
+#include <linux/mmu_notifier.h>
#include <asm/uaccess.h>
extern struct workqueue_struct *ib_wq;
@@ -1139,6 +1140,8 @@ struct ib_fmr_attr {
u8 page_shift;
};
+struct ib_umem;
+
struct ib_ucontext {
struct ib_device *device;
struct list_head pd_list;
@@ -1153,6 +1156,22 @@ struct ib_ucontext {
int closing;
struct pid *tgid;
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+ struct rb_root umem_tree;
+ /*
+ * Protects .umem_rbroot and tree, as well as odp_mrs_count and
+ * mmu notifiers registration.
+ */
+ struct rw_semaphore umem_rwsem;
+ void (*invalidate_range)(struct ib_umem *umem,
+ unsigned long start, unsigned long end);
+
+ struct mmu_notifier mn;
+ atomic_t notifier_count;
+ /* A list of umems that don't have private mmu notifier counters yet. */
+ struct list_head no_private_counters;
+ int odp_mrs_count;
+#endif
};
struct ib_uobject {
--
cgit v1.2.1
From 6cb7ff3dcfe6aad6a36a0fd0e928b5bea4fabdd5 Mon Sep 17 00:00:00 2001
From: Roland Dreier <roland@purestorage.com>
Date: Mon, 15 Dec 2014 18:17:17 -0800
Subject: mlx5_core: Re-add MLX5_DEV_CAP_FLAG_ON_DMND_PG flag
In commit 0c7aac854f52 ("net/mlx5_core: Remove unused dev cap enum
fields"), the flag MLX5_DEV_CAP_FLAG_ON_DMND_PG was removed.
Unfortunately the on-demand paging changes actually use it, so re-add
the missing flag.
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/device.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index fa07bfda0e15..096abe543d2c 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -234,6 +234,7 @@ enum {
MLX5_DEV_CAP_FLAG_APM = 1LL << 17,
MLX5_DEV_CAP_FLAG_ATOMIC = 1LL << 18,
MLX5_DEV_CAP_FLAG_BLOCK_MCAST = 1LL << 23,
+ MLX5_DEV_CAP_FLAG_ON_DMND_PG = 1LL << 24,
MLX5_DEV_CAP_FLAG_CQ_MODER = 1LL << 29,
MLX5_DEV_CAP_FLAG_RESIZE_CQ = 1LL << 30,
MLX5_DEV_CAP_FLAG_DCT = 1LL << 37,
--
cgit v1.2.1
From e420f0c0f3d1022789fcb59b2a0c4b979ce311ba Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:19 +0200
Subject: mlx5_core: Add support for page faults events and low level handling
* Add a handler function pointer in the mlx5_core_qp struct for page
fault events. Handle page fault events by calling the handler
function, if not NULL.
* Add on-demand paging capability query command.
* Export command for resuming QPs after page faults.
* Add various constants related to paging support.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/device.h | 54 +++++++++++++++++++++++++++++++++++++++++++-
include/linux/mlx5/driver.h | 12 ++++++++++
include/linux/mlx5/qp.h | 55 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 120 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 096abe543d2c..70c28239e339 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -119,6 +119,15 @@ enum {
MLX5_MAX_LOG_PKEY_TABLE = 5,
};
+enum {
+ MLX5_MKEY_INBOX_PG_ACCESS = 1 << 31
+};
+
+enum {
+ MLX5_PFAULT_SUBTYPE_WQE = 0,
+ MLX5_PFAULT_SUBTYPE_RDMA = 1,
+};
+
enum {
MLX5_PERM_LOCAL_READ = 1 << 2,
MLX5_PERM_LOCAL_WRITE = 1 << 3,
@@ -215,6 +224,8 @@ enum mlx5_event {
MLX5_EVENT_TYPE_CMD = 0x0a,
MLX5_EVENT_TYPE_PAGE_REQUEST = 0xb,
+
+ MLX5_EVENT_TYPE_PAGE_FAULT = 0xc,
};
enum {
@@ -300,6 +311,8 @@ enum {
enum {
HCA_CAP_OPMOD_GET_MAX = 0,
HCA_CAP_OPMOD_GET_CUR = 1,
+ HCA_CAP_OPMOD_GET_ODP_MAX = 4,
+ HCA_CAP_OPMOD_GET_ODP_CUR = 5
};
struct mlx5_inbox_hdr {
@@ -329,6 +342,23 @@ struct mlx5_cmd_query_adapter_mbox_out {
u8 vsd_psid[16];
};
+enum mlx5_odp_transport_cap_bits {
+ MLX5_ODP_SUPPORT_SEND = 1 << 31,
+ MLX5_ODP_SUPPORT_RECV = 1 << 30,
+ MLX5_ODP_SUPPORT_WRITE = 1 << 29,
+ MLX5_ODP_SUPPORT_READ = 1 << 28,
+};
+
+struct mlx5_odp_caps {
+ char reserved[0x10];
+ struct {
+ __be32 rc_odp_caps;
+ __be32 uc_odp_caps;
+ __be32 ud_odp_caps;
+ } per_transport_caps;
+ char reserved2[0xe4];
+};
+
struct mlx5_cmd_init_hca_mbox_in {
struct mlx5_inbox_hdr hdr;
u8 rsvd0[2];
@@ -449,6 +479,27 @@ struct mlx5_eqe_page_req {
__be32 rsvd1[5];
};
+struct mlx5_eqe_page_fault {
+ __be32 bytes_committed;
+ union {
+ struct {
+ u16 reserved1;
+ __be16 wqe_index;
+ u16 reserved2;
+ __be16 packet_length;
+ u8 reserved3[12];
+ } __packed wqe;
+ struct {
+ __be32 r_key;
+ u16 reserved1;
+ __be16 packet_length;
+ __be32 rdma_op_len;
+ __be64 rdma_va;
+ } __packed rdma;
+ } __packed;
+ __be32 flags_qpn;
+} __packed;
+
union ev_data {
__be32 raw[7];
struct mlx5_eqe_cmd cmd;
@@ -460,6 +511,7 @@ union ev_data {
struct mlx5_eqe_congestion cong;
struct mlx5_eqe_stall_vl stall_vl;
struct mlx5_eqe_page_req req_pages;
+ struct mlx5_eqe_page_fault page_fault;
} __packed;
struct mlx5_eqe {
@@ -826,7 +878,7 @@ struct mlx5_query_special_ctxs_mbox_out {
struct mlx5_create_mkey_mbox_in {
struct mlx5_inbox_hdr hdr;
__be32 input_mkey_index;
- u8 rsvd0[4];
+ __be32 flags;
struct mlx5_mkey_seg seg;
u8 rsvd1[16];
__be32 xlat_oct_act_size;
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index b1bf41556b32..7088dcd19214 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -113,6 +113,13 @@ enum {
MLX5_REG_HOST_ENDIANNESS = 0x7004,
};
+enum mlx5_page_fault_resume_flags {
+ MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
+ MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1,
+ MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2,
+ MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7,
+};
+
enum dbg_rsc_type {
MLX5_DBG_RSC_QP,
MLX5_DBG_RSC_EQ,
@@ -703,6 +710,9 @@ void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+void mlx5_eq_pagefault(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe);
+#endif
void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector);
@@ -740,6 +750,8 @@ int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
int npsvs, u32 *sig_index);
int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
+int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
+ struct mlx5_odp_caps *odp_caps);
static inline u32 mlx5_mkey_to_idx(u32 mkey)
{
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 67f4b9660b06..6b1d6f60c7e6 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -50,6 +50,9 @@
#define MLX5_BSF_APPTAG_ESCAPE 0x1
#define MLX5_BSF_APPREF_ESCAPE 0x2
+#define MLX5_QPN_BITS 24
+#define MLX5_QPN_MASK ((1 << MLX5_QPN_BITS) - 1)
+
enum mlx5_qp_optpar {
MLX5_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
MLX5_QP_OPTPAR_RRE = 1 << 1,
@@ -363,9 +366,46 @@ struct mlx5_stride_block_ctrl_seg {
__be16 num_entries;
};
+enum mlx5_pagefault_flags {
+ MLX5_PFAULT_REQUESTOR = 1 << 0,
+ MLX5_PFAULT_WRITE = 1 << 1,
+ MLX5_PFAULT_RDMA = 1 << 2,
+};
+
+/* Contains the details of a pagefault. */
+struct mlx5_pagefault {
+ u32 bytes_committed;
+ u8 event_subtype;
+ enum mlx5_pagefault_flags flags;
+ union {
+ /* Initiator or send message responder pagefault details. */
+ struct {
+ /* Received packet size, only valid for responders. */
+ u32 packet_size;
+ /*
+ * WQE index. Refers to either the send queue or
+ * receive queue, according to event_subtype.
+ */
+ u16 wqe_index;
+ } wqe;
+ /* RDMA responder pagefault details */
+ struct {
+ u32 r_key;
+ /*
+ * Received packet size, minimal size page fault
+ * resolution required for forward progress.
+ */
+ u32 packet_size;
+ u32 rdma_op_len;
+ u64 rdma_va;
+ } rdma;
+ };
+};
+
struct mlx5_core_qp {
struct mlx5_core_rsc_common common; /* must be first */
void (*event) (struct mlx5_core_qp *, int);
+ void (*pfault_handler)(struct mlx5_core_qp *, struct mlx5_pagefault *);
int qpn;
struct mlx5_rsc_debug *dbg;
int pid;
@@ -533,6 +573,17 @@ static inline struct mlx5_core_mr *__mlx5_mr_lookup(struct mlx5_core_dev *dev, u
return radix_tree_lookup(&dev->priv.mr_table.tree, key);
}
+struct mlx5_page_fault_resume_mbox_in {
+ struct mlx5_inbox_hdr hdr;
+ __be32 flags_qpn;
+ u8 reserved[4];
+};
+
+struct mlx5_page_fault_resume_mbox_out {
+ struct mlx5_outbox_hdr hdr;
+ u8 rsvd[8];
+};
+
int mlx5_core_create_qp(struct mlx5_core_dev *dev,
struct mlx5_core_qp *qp,
struct mlx5_create_qp_mbox_in *in,
@@ -552,6 +603,10 @@ void mlx5_init_qp_table(struct mlx5_core_dev *dev);
void mlx5_cleanup_qp_table(struct mlx5_core_dev *dev);
int mlx5_debug_qp_add(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp);
void mlx5_debug_qp_remove(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp);
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 qpn,
+ u8 context, int error);
+#endif
static inline const char *mlx5_qp_type_str(int type)
{
--
cgit v1.2.1
From cc149f751b75211df8c41fcd60bd0006e6143ed6 Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:21 +0200
Subject: IB/mlx5: Changes in memory region creation to support on-demand
paging
This patch wraps together several changes needed for on-demand paging support
in the mlx5_ib_populate_pas function, and when registering memory regions.
* Instead of accepting a UMR bit telling the function to enable all
access flags, the function now accepts the access flags themselves.
* For on-demand paging memory regions, fill the memory tables from the
correct list, and enable/disable the access flags per-page according
to whether the page is present.
* A new bit is set to enable writing of access flags when using the
firmware create_mkey command.
* Disable contig pages when on-demand paging is enabled.
In addition the patch changes the UMR code to use PTR_ALIGN instead of
our own macro.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/device.h | 3 +++
1 file changed, 3 insertions(+)
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 70c28239e339..64512a7354cb 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -198,6 +198,9 @@ enum {
MLX5_UMR_INLINE = (1 << 7),
};
+#define MLX5_UMR_MTT_ALIGNMENT 0x40
+#define MLX5_UMR_MTT_MASK (MLX5_UMR_MTT_ALIGNMENT - 1)
+
enum mlx5_event {
MLX5_EVENT_TYPE_COMP = 0x0,
--
cgit v1.2.1
From 832a6b06ab5e13c228fc27e333ad360aa03ace6f Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:22 +0200
Subject: IB/mlx5: Add mlx5_ib_update_mtt to update page tables after creation
The new function allows updating the page tables of a memory region
after it was created. This can be used to handle page faults and page
invalidations.
Since mlx5_ib_update_mtt will need to work from within page invalidation,
so it must not block on memory allocation. It employs an atomic memory
allocation mechanism that is used as a fallback when kmalloc(GFP_ATOMIC) fails.
In order to reuse code from mlx5_ib_populate_pas, the patch splits
this function and add the needed parameters.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/device.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 64512a7354cb..4e5bd813bb9a 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -200,6 +200,7 @@ enum {
#define MLX5_UMR_MTT_ALIGNMENT 0x40
#define MLX5_UMR_MTT_MASK (MLX5_UMR_MTT_ALIGNMENT - 1)
+#define MLX5_UMR_MTT_MIN_CHUNK_SIZE MLX5_UMR_MTT_ALIGNMENT
enum mlx5_event {
MLX5_EVENT_TYPE_COMP = 0x0,
--
cgit v1.2.1
From 6aec21f6a8322fa8d43df3ea7f051dfd8967f1b9 Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:23 +0200
Subject: IB/mlx5: Page faults handling infrastructure
* Refactor MR registration and cleanup, and fix reg_pages accounting.
* Create a work queue to handle page fault events in a kthread context.
* Register a fault handler to get events from the core for each QP.
The registered fault handler is empty in this patch, and only a later
patch implements it.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/driver.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 7088dcd19214..166d9315fe4b 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -474,7 +474,7 @@ struct mlx5_priv {
struct workqueue_struct *pg_wq;
struct rb_root page_root;
int fw_pages;
- int reg_pages;
+ atomic_t reg_pages;
struct list_head free_list;
struct mlx5_core_health health;
--
cgit v1.2.1
From 7bdf65d411c1715d695be0d9a555d7f48d0a7220 Mon Sep 17 00:00:00 2001
From: Haggai Eran <haggaie@mellanox.com>
Date: Thu, 11 Dec 2014 17:04:24 +0200
Subject: IB/mlx5: Handle page faults
This patch implement a page fault handler (leaving the pages pinned as
of time being). The page fault handler handles initiator and responder
page faults for UD/RC transports, for send/receive operations, as well
as RDMA read/write initiator support.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
include/linux/mlx5/qp.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 6b1d6f60c7e6..61f7a342d1bf 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -193,7 +193,12 @@ struct mlx5_wqe_ctrl_seg {
};
#define MLX5_WQE_CTRL_DS_MASK 0x3f
+#define MLX5_WQE_CTRL_QPN_MASK 0xffffff00
+#define MLX5_WQE_CTRL_QPN_SHIFT 8
#define MLX5_WQE_DS_UNITS 16
+#define MLX5_WQE_CTRL_OPCODE_MASK 0xff
+#define MLX5_WQE_CTRL_WQE_INDEX_MASK 0x00ffff00
+#define MLX5_WQE_CTRL_WQE_INDEX_SHIFT 8
struct mlx5_wqe_xrc_seg {
__be32 xrc_srqn;
@@ -298,6 +303,8 @@ struct mlx5_wqe_signature_seg {
u8 rsvd1[11];
};
+#define MLX5_WQE_INLINE_SEG_BYTE_COUNT_MASK 0x3ff
+
struct mlx5_wqe_inline_seg {
__be32 byte_count;
};
--
cgit v1.2.1
From cffe0a2b5a34c95a4dadc9ec7132690a5b0f6687 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Mon, 27 Oct 2014 13:21:42 +0800
Subject: x86, irq: Keep balance of IOAPIC pin reference count
To keep balance of IOAPIC pin reference count, we need to protect
pirq_enable_irq(), acpi_pci_irq_enable() and intel_mid_pci_irq_enable()
from reentrance. There are two cases which will cause reentrance.
The first case is caused by suspend/hibernation. If pcibios_disable_irq
is called during suspending/hibernating, we don't release the assigned
IRQ number, otherwise it may break the suspend/hibernation. So late when
pcibios_enable_irq is called during resume, we shouldn't allocate IRQ
number again.
The second case is that function acpi_pci_irq_enable() may be called
twice for PCI devices present at boot time as below:
1) pci_acpi_init()
--> acpi_pci_irq_enable() if pci_routeirq is true
2) pci_enable_device()
--> pcibios_enable_device()
--> acpi_pci_irq_enable()
We can't kill kernel parameter pci_routeirq yet because it's still
needed for debugging purpose.
So flag irq_managed is introduced to track whether IRQ number is
assigned by OS and to protect pirq_enable_irq(), acpi_pci_irq_enable()
and intel_mid_pci_irq_enable() from reentrance.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Len Brown <lenb@kernel.org>
Link: http://lkml.kernel.org/r/1414387308-27148-13-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/pci.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/pci.h b/include/linux/pci.h
index a523cee3abb5..c888c5e4e225 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -349,6 +349,7 @@ struct pci_dev {
unsigned int __aer_firmware_first:1;
unsigned int broken_intx_masking:1;
unsigned int io_window_1k:1; /* Intel P2P bridge 1K I/O windows */
+ unsigned int irq_managed:1;
pci_dev_flags_t dev_flags;
atomic_t enable_cnt; /* pci_enable_device has been called */
--
cgit v1.2.1
From e89900c9ad75a1b80e1f1f46ce9c9bb0e7ea1d96 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Mon, 27 Oct 2014 13:21:47 +0800
Subject: x86, irq: Introduce helper to check whether an IOAPIC has been
registered
Introduce acpi_ioapic_registered() to check whether an IOAPIC has already
been registered, it will be used when enabling IOAPIC hotplug.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Len Brown <len.brown@intel.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1414387308-27148-18-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/acpi.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 407a12f663eb..a81dd437a53c 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -148,6 +148,7 @@ int acpi_unmap_lsapic(int cpu);
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
+int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
void acpi_irq_stats_init(void);
extern u32 acpi_irq_handled;
extern u32 acpi_irq_not_handled;
--
cgit v1.2.1
From 5eea84f478537de769330079dc068414f9d417f4 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 16 Dec 2014 15:05:01 +0200
Subject: if_tun: add TUNSETVNETLE/TUNGETVNETLE
ifreq flags field is only 16 bit wide, so setting IFF_VNET_LE there has
no effect:
doesn't fit in two bytes.
The tests passed apparently because they have an even number of bugs,
all cancelling out.
Luckily we didn't release a kernel with this flag, so it's
not too late to fix this.
Add TUNSETVNETLE/TUNGETVNETLE to really achieve the purpose
of IFF_VNET_LE.
This has an added benefit that if we ever want a BE flag,
we won't have to deal with weird configurations like
setting both LE and BE at the same time.
IFF_VNET_LE will be dropped in a follow-up patch.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_tun.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 18b2403982f9..274630caa276 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -48,6 +48,8 @@
#define TUNSETQUEUE _IOW('T', 217, int)
#define TUNSETIFINDEX _IOW('T', 218, unsigned int)
#define TUNGETFILTER _IOR('T', 219, struct sock_fprog)
+#define TUNSETVNETLE _IOW('T', 220, int)
+#define TUNGETVNETLE _IOR('T', 221, int)
/* TUNSETIFF ifr flags */
#define IFF_TUN 0x0001
--
cgit v1.2.1
From 9c6ab1931fd6198eab61d9d59aff9a1014637ace Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 16 Dec 2014 15:05:23 +0200
Subject: if_tun: drop broken IFF_VNET_LE
Everyone should use TUNSETVNETLE/TUNGETVNETLE instead.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/if_tun.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 274630caa276..50ae24335444 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -59,7 +59,6 @@
#define IFF_ONE_QUEUE 0x2000
#define IFF_VNET_HDR 0x4000
#define IFF_TUN_EXCL 0x8000
-#define IFF_VNET_LE 0x10000
#define IFF_MULTI_QUEUE 0x0100
#define IFF_ATTACH_QUEUE 0x0200
#define IFF_DETACH_QUEUE 0x0400
--
cgit v1.2.1
From 6539c44d08ac2eea693b6163135169b9c8c18bb1 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 16 Dec 2014 14:30:09 -0500
Subject: net: Allow FIXED_PHY to be modular.
Otherwise we get things like:
warning: (NET_DSA_BCM_SF2 && BCMGENET && SYSTEMPORT) selects FIXED_PHY which has unmet direct dependencies (NETDEVICES && PHYLIB=y)
In order to make this work we have to rename fixed.c to fixed_phy.c
because the regulator drivers already have a module named "fixed.o".
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/phy_fixed.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index f2ca1b459377..7e75bfe37cc7 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -11,7 +11,7 @@ struct fixed_phy_status {
struct device_node;
-#ifdef CONFIG_FIXED_PHY
+#if IS_ENABLED(CONFIG_FIXED_PHY)
extern int fixed_phy_add(unsigned int irq, int phy_id,
struct fixed_phy_status *status);
extern struct phy_device *fixed_phy_register(unsigned int irq,
--
cgit v1.2.1
From f2d27e4519e5373767815d2050293c628242e34f Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 5 Dec 2014 10:02:47 -0300
Subject: [media] v4l2-mediabus.h: use two __u16 instead of two __u32
The ycbcr_enc and quantization fields do not need a __u32. Switch to
two __u16 types, thus preserving alignment and avoiding holes in the
struct. This makes one more __u32 available for future expansion.
Suggested by Sakari Ailus.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
include/uapi/linux/v4l2-mediabus.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/v4l2-mediabus.h b/include/uapi/linux/v4l2-mediabus.h
index 5a86d8ede09c..26db20647e6f 100644
--- a/include/uapi/linux/v4l2-mediabus.h
+++ b/include/uapi/linux/v4l2-mediabus.h
@@ -31,9 +31,9 @@ struct v4l2_mbus_framefmt {
__u32 code;
__u32 field;
__u32 colorspace;
- __u32 ycbcr_enc;
- __u32 quantization;
- __u32 reserved[5];
+ __u16 ycbcr_enc;
+ __u16 quantization;
+ __u32 reserved[6];
};
#ifndef __KERNEL__
--
cgit v1.2.1
From 62c4cf97e82cf79446642e599d155884f600cf17 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Tue, 16 Dec 2014 01:52:08 -0500
Subject: cpuidle / ACPI: remove unused CPUIDLE_FLAG_TIME_INVALID
CPUIDLE_FLAG_TIME_INVALID is no longer checked
by menu or ladder cpuidle governors, so don't
bother setting or defining it.
It was originally invented to account for the fact that
acpi_safe_halt() enables interrupts to invoke HLT.
That would allow interrupt service routines to be included
in the last_idle duration measurements made in cpuidle_enter_state(),
potentially returning a duration much larger than reality.
But menu and ladder can gracefully handle erroneously large duration
intervals without checking for CPUIDLE_FLAG_TIME_INVALID.
Further, if they don't check CPUIDLE_FLAG_TIME_INVALID, they
can also benefit from the instances when the duration interval
is not erroneously large.
Signed-off-by: Len Brown <len.brown@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/cpuidle.h | 3 ---
1 file changed, 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index a07e087f54b2..ab70f3bc44ad 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -53,7 +53,6 @@ struct cpuidle_state {
};
/* Idle State Flags */
-#define CPUIDLE_FLAG_TIME_INVALID (0x01) /* is residency time measurable? */
#define CPUIDLE_FLAG_COUPLED (0x02) /* state applies to multiple cpus */
#define CPUIDLE_FLAG_TIMER_STOP (0x04) /* timer is stopped on this state */
@@ -89,8 +88,6 @@ DECLARE_PER_CPU(struct cpuidle_device, cpuidle_dev);
/**
* cpuidle_get_last_residency - retrieves the last state's residency time
* @dev: the target CPU
- *
- * NOTE: this value is invalid if CPUIDLE_FLAG_TIME_INVALID is set
*/
static inline int cpuidle_get_last_residency(struct cpuidle_device *dev)
{
--
cgit v1.2.1
From 7496fcbe8a643097efc061160e1c3b65ee2fa350 Mon Sep 17 00:00:00 2001
From: Amit Daniel Kachhap <amit.daniel@samsung.com>
Date: Mon, 15 Dec 2014 09:08:59 +0530
Subject: PM / Domains: Export of_genpd_get_from_provider function
This function looks up a PM domain form the provider. This will be
useful to add parent/child domain relationship from the SoC specific
code. The caller of the function must make sure that PM domain provider
is already registered.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/pm_domain.h | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'include')
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 1dd6c7f64166..ba7ca5468a7b 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -275,6 +275,8 @@ typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args,
int __of_genpd_add_provider(struct device_node *np, genpd_xlate_t xlate,
void *data);
void of_genpd_del_provider(struct device_node *np);
+struct generic_pm_domain *of_genpd_get_from_provider(
+ struct of_phandle_args *genpdspec);
struct generic_pm_domain *__of_genpd_xlate_simple(
struct of_phandle_args *genpdspec,
@@ -292,6 +294,12 @@ static inline int __of_genpd_add_provider(struct device_node *np,
}
static inline void of_genpd_del_provider(struct device_node *np) {}
+static inline struct generic_pm_domain *of_genpd_get_from_provider(
+ struct of_phandle_args *genpdspec)
+{
+ return NULL;
+}
+
#define __of_genpd_xlate_simple NULL
#define __of_genpd_xlate_onecell NULL
--
cgit v1.2.1
From 777eda2c5b84d6f3543f4aecbf4cd1f29b222a81 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 17 Dec 2014 04:46:46 -0500
Subject: new helper: iter_is_iovec()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/uio.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/linux/uio.h b/include/linux/uio.h
index a41e252396c0..1c5e453f7ea9 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -101,6 +101,11 @@ static inline size_t iov_iter_count(struct iov_iter *i)
return i->count;
}
+static inline bool iter_is_iovec(struct iov_iter *i)
+{
+ return !(i->type & (ITER_BVEC | ITER_KVEC));
+}
+
/*
* Cap the iov_iter by given limit; note that the second argument is
* *not* the new size - it's upper limit for such. Passing it a value
--
cgit v1.2.1
From 503ccc3fec4a56cdcfedc507cd1ea0d85e1fbfa2 Mon Sep 17 00:00:00 2001
From: Javi Merino <javi.merino@arm.com>
Date: Wed, 17 Dec 2014 11:11:24 +0000
Subject: thermal: cpu_cooling: return ERR_PTR() for !CPU_THERMAL or
!THERMAL_OF
The documentation of of_cpufreq_cooling_register() and
cpufreq_cooling_register() say that they return ERR_PTR() on error.
Accordingly, callers only check for IS_ERR(). Therefore, make them
return ERR_PTR(-ENOSYS) as is customary in the kernel when config
options are missing.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
include/linux/cpu_cooling.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/cpu_cooling.h b/include/linux/cpu_cooling.h
index c303d383def1..bd955270d5aa 100644
--- a/include/linux/cpu_cooling.h
+++ b/include/linux/cpu_cooling.h
@@ -50,7 +50,7 @@ static inline struct thermal_cooling_device *
of_cpufreq_cooling_register(struct device_node *np,
const struct cpumask *clip_cpus)
{
- return NULL;
+ return ERR_PTR(-ENOSYS);
}
#endif
@@ -65,13 +65,13 @@ unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq);
static inline struct thermal_cooling_device *
cpufreq_cooling_register(const struct cpumask *clip_cpus)
{
- return NULL;
+ return ERR_PTR(-ENOSYS);
}
static inline struct thermal_cooling_device *
of_cpufreq_cooling_register(struct device_node *np,
const struct cpumask *clip_cpus)
{
- return NULL;
+ return ERR_PTR(-ENOSYS);
}
static inline
void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
--
cgit v1.2.1
From 50062175ffc844b8ff9664024c6416a37ad63c77 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 15 May 2014 05:06:42 -0400
Subject: vm_area_operations: kill ->migrate()
the only instance this method has ever grown was one in kernfs -
one that call ->migrate() of another vm_ops if it exists.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
include/linux/migrate.h | 10 ----------
include/linux/mm.h | 2 --
2 files changed, 12 deletions(-)
(limited to 'include')
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 01aad3ed89ec..fab9b32ace8e 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -36,9 +36,6 @@ extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
extern int migrate_prep(void);
extern int migrate_prep_local(void);
-extern int migrate_vmas(struct mm_struct *mm,
- const nodemask_t *from, const nodemask_t *to,
- unsigned long flags);
extern void migrate_page_copy(struct page *newpage, struct page *page);
extern int migrate_huge_page_move_mapping(struct address_space *mapping,
struct page *newpage, struct page *page);
@@ -57,13 +54,6 @@ static inline int migrate_pages(struct list_head *l, new_page_t new,
static inline int migrate_prep(void) { return -ENOSYS; }
static inline int migrate_prep_local(void) { return -ENOSYS; }
-static inline int migrate_vmas(struct mm_struct *mm,
- const nodemask_t *from, const nodemask_t *to,
- unsigned long flags)
-{
- return -ENOSYS;
-}
-
static inline void migrate_page_copy(struct page *newpage,
struct page *page) {}
diff --git a/include/linux/mm.h b/include/linux/mm.h
index c0a67b894c4c..f80d0194c9bc 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -286,8 +286,6 @@ struct vm_operations_struct {
*/
struct mempolicy *(*get_policy)(struct vm_area_struct *vma,
unsigned long addr);
- int (*migrate)(struct vm_area_struct *vma, const nodemask_t *from,
- const nodemask_t *to, unsigned long flags);
#endif
/* called by sys_remap_file_pages() to populate non-linear mapping */
int (*remap_pages)(struct vm_area_struct *vma, unsigned long addr,
--
cgit v1.2.1
From a4d7b30df5d10bca92f8f359fc56fb8db0410f89 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 15 Dec 2014 14:47:18 +0100
Subject: drm/irq: Add drm_crtc_send_vblank_event()
This function is the KMS native variant of drm_send_vblank_event(). It
takes a struct drm_crtc * instead of a struct drm_device * and an index
of the CRTC.
Eventually the goal is to access vblank data through the CRTC only so
that the per-CRTC data can be moved to struct drm_crtc.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drmP.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 8ba35c622e22..b78601bb7c46 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -905,6 +905,8 @@ extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
struct timeval *vblanktime);
extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
struct drm_pending_vblank_event *e);
+extern void drm_crtc_send_vblank_event(struct drm_crtc *crtc,
+ struct drm_pending_vblank_event *e);
extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
extern int drm_vblank_get(struct drm_device *dev, int crtc);
extern void drm_vblank_put(struct drm_device *dev, int crtc);
--
cgit v1.2.1
From 115ebcd4fa90df8cfc80d2302b7afa8d39edb7e2 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 15 Dec 2014 14:47:18 +0100
Subject: drm/irq: Add drm_crtc_handle_vblank()
This function is the KMS native variant of drm_handle_vblank(). It takes
a struct drm_crtc * instead of a struct drm_device * and an index of the
CRTC.
Eventually the goal is to access vblank data through the CRTC only so
that the per-CRTC data can be moved to struct drm_crtc.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drmP.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index b78601bb7c46..f1f7f15ce0f3 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -908,6 +908,7 @@ extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
extern void drm_crtc_send_vblank_event(struct drm_crtc *crtc,
struct drm_pending_vblank_event *e);
extern bool drm_handle_vblank(struct drm_device *dev, int crtc);
+extern bool drm_crtc_handle_vblank(struct drm_crtc *crtc);
extern int drm_vblank_get(struct drm_device *dev, int crtc);
extern void drm_vblank_put(struct drm_device *dev, int crtc);
extern int drm_crtc_vblank_get(struct drm_crtc *crtc);
--
cgit v1.2.1
From 96d3f91eb263d478777bb9bff1b1300e0c08c29e Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 16 Dec 2014 13:08:47 +0100
Subject: drm/irq: Add drm_crtc_vblank_count()
This function is the KMS native variant of drm_vblank_count(). It takes
a struct drm_crtc * instead of a struct drm_device * and an index of the
CRTC.
Eventually the goal is to access vblank data through the CRTC only so
that the per-CRTC data can be moved to struct drm_crtc.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
include/drm/drmP.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index f1f7f15ce0f3..e1b2e8b98af7 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -901,6 +901,7 @@ extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
extern int drm_wait_vblank(struct drm_device *dev, void *data,
struct drm_file *filp);
extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
+extern u32 drm_crtc_vblank_count(struct drm_crtc *crtc);
extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc,
struct timeval *vblanktime);
extern void drm_send_vblank_event(struct drm_device *dev, int crtc,
--
cgit v1.2.1
From 9280be24dc9c7aaee230de3ed33f8357386de9a2 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Tue, 14 Oct 2014 10:33:35 +0800
Subject: ceph: fix file lock interruption
When a lock operation is interrupted, current code sends a unlock request to
MDS to undo the lock operation. This method does not work as expected because
the unlock request can drop locks that have already been acquired.
The fix is use the newly introduced CEPH_LOCK_FCNTL_INTR/CEPH_LOCK_FLOCK_INTR
requests to interrupt blocked file lock request. These requests do not drop
locks that have alread been acquired, they only interrupt blocked file lock
request.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
---
include/linux/ceph/ceph_fs.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index 3c97d5e9b951..31d8b98b7f96 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -522,8 +522,11 @@ struct ceph_mds_reply_dirfrag {
__le32 dist[];
} __attribute__ ((packed));
-#define CEPH_LOCK_FCNTL 1
-#define CEPH_LOCK_FLOCK 2
+#define CEPH_LOCK_FCNTL 1
+#define CEPH_LOCK_FLOCK 2
+#define CEPH_LOCK_FCNTL_INTR 3
+#define CEPH_LOCK_FLOCK_INTR 4
+
#define CEPH_LOCK_SHARED 1
#define CEPH_LOCK_EXCL 2
--
cgit v1.2.1
From 4965fc38c460b274b2a1789e1165a25fb0409d7e Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@redhat.com>
Date: Thu, 23 Oct 2014 16:32:57 +0400
Subject: libceph: nuke ceph_kvfree()
Use kvfree() from linux/mm.h instead, which is identical. Also fix the
ceph_buffer comment: we will allocate with kmalloc() up to 32k - the
value of PAGE_ALLOC_COSTLY_ORDER, but that really is just an
implementation detail so don't mention it at all.
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
---
include/linux/ceph/buffer.h | 3 +--
include/linux/ceph/libceph.h | 1 -
2 files changed, 1 insertion(+), 3 deletions(-)
(limited to 'include')
diff --git a/include/linux/ceph/buffer.h b/include/linux/ceph/buffer.h
index 07ad423cc37f..07ca15e76100 100644
--- a/include/linux/ceph/buffer.h
+++ b/include/linux/ceph/buffer.h
@@ -10,8 +10,7 @@
/*
* a simple reference counted buffer.
*
- * use kmalloc for small sizes (<= one page), vmalloc for larger
- * sizes.
+ * use kmalloc for smaller sizes, vmalloc for larger sizes.
*/
struct ceph_buffer {
struct kref kref;
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 07bc359b88ac..d293f7e38814 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -184,7 +184,6 @@ extern bool libceph_compatible(void *data);
extern const char *ceph_msg_type_name(int type);
extern int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid);
extern void *ceph_kvmalloc(size_t size, gfp_t flags);
-extern void ceph_kvfree(const void *ptr);
extern struct ceph_options *ceph_parse_options(char *options,
const char *dev_name, const char *dev_name_end,
--
cgit v1.2.1
From 33d07337962c7bbd2fd5cf7f1106735c9507fbe2 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Tue, 4 Nov 2014 16:33:37 +0800
Subject: libceph: message signature support
Signed-off-by: Yan, Zheng <zyan@redhat.com>
---
include/linux/ceph/auth.h | 26 ++++++++++++++++++++++++++
include/linux/ceph/ceph_features.h | 1 +
include/linux/ceph/messenger.h | 9 ++++++++-
include/linux/ceph/msgr.h | 8 ++++++++
4 files changed, 43 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index 5f3386844134..260d78b587c4 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -13,6 +13,7 @@
struct ceph_auth_client;
struct ceph_authorizer;
+struct ceph_msg;
struct ceph_auth_handshake {
struct ceph_authorizer *authorizer;
@@ -20,6 +21,10 @@ struct ceph_auth_handshake {
size_t authorizer_buf_len;
void *authorizer_reply_buf;
size_t authorizer_reply_buf_len;
+ int (*sign_message)(struct ceph_auth_handshake *auth,
+ struct ceph_msg *msg);
+ int (*check_message_signature)(struct ceph_auth_handshake *auth,
+ struct ceph_msg *msg);
};
struct ceph_auth_client_ops {
@@ -66,6 +71,11 @@ struct ceph_auth_client_ops {
void (*reset)(struct ceph_auth_client *ac);
void (*destroy)(struct ceph_auth_client *ac);
+
+ int (*sign_message)(struct ceph_auth_handshake *auth,
+ struct ceph_msg *msg);
+ int (*check_message_signature)(struct ceph_auth_handshake *auth,
+ struct ceph_msg *msg);
};
struct ceph_auth_client {
@@ -113,4 +123,20 @@ extern int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
extern void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac,
int peer_type);
+static inline int ceph_auth_sign_message(struct ceph_auth_handshake *auth,
+ struct ceph_msg *msg)
+{
+ if (auth->sign_message)
+ return auth->sign_message(auth, msg);
+ return 0;
+}
+
+static inline
+int ceph_auth_check_message_signature(struct ceph_auth_handshake *auth,
+ struct ceph_msg *msg)
+{
+ if (auth->check_message_signature)
+ return auth->check_message_signature(auth, msg);
+ return 0;
+}
#endif
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index d12659ce550d..71e05bbf8ceb 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -84,6 +84,7 @@ static inline u64 ceph_sanitize_features(u64 features)
CEPH_FEATURE_PGPOOL3 | \
CEPH_FEATURE_OSDENC | \
CEPH_FEATURE_CRUSH_TUNABLES | \
+ CEPH_FEATURE_MSG_AUTH | \
CEPH_FEATURE_CRUSH_TUNABLES2 | \
CEPH_FEATURE_REPLY_CREATE_INODE | \
CEPH_FEATURE_OSDHASHPSPOOL | \
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 40ae58e3e9db..d9d396c16503 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -42,6 +42,10 @@ struct ceph_connection_operations {
struct ceph_msg * (*alloc_msg) (struct ceph_connection *con,
struct ceph_msg_header *hdr,
int *skip);
+ int (*sign_message) (struct ceph_connection *con, struct ceph_msg *msg);
+
+ int (*check_message_signature) (struct ceph_connection *con,
+ struct ceph_msg *msg);
};
/* use format string %s%d */
@@ -142,7 +146,10 @@ struct ceph_msg_data_cursor {
*/
struct ceph_msg {
struct ceph_msg_header hdr; /* header */
- struct ceph_msg_footer footer; /* footer */
+ union {
+ struct ceph_msg_footer footer; /* footer */
+ struct ceph_msg_footer_old old_footer; /* old format footer */
+ };
struct kvec front; /* unaligned blobs of message */
struct ceph_buffer *middle;
diff --git a/include/linux/ceph/msgr.h b/include/linux/ceph/msgr.h
index 3d94a73b5f30..cac4b28ac1c0 100644
--- a/include/linux/ceph/msgr.h
+++ b/include/linux/ceph/msgr.h
@@ -164,13 +164,21 @@ struct ceph_msg_header {
/*
* follows data payload
*/
+struct ceph_msg_footer_old {
+ __le32 front_crc, middle_crc, data_crc;
+ __u8 flags;
+} __attribute__ ((packed));
+
struct ceph_msg_footer {
__le32 front_crc, middle_crc, data_crc;
+ // sig holds the 64 bits of the digital signature for the message PLR
+ __le64 sig;
__u8 flags;
} __attribute__ ((packed));
#define CEPH_MSG_FOOTER_COMPLETE (1<<0) /* msg wasn't aborted */
#define CEPH_MSG_FOOTER_NOCRC (1<<1) /* no data crc */
+#define CEPH_MSG_FOOTER_SIGNED (1<<2) /* msg was signed */
#endif
--
cgit v1.2.1
From d4e1a4e0db439209672f9803f9f23b0123fb09aa Mon Sep 17 00:00:00 2001
From: John Spray <john.spray@redhat.com>
Date: Thu, 16 Oct 2014 12:05:34 +0100
Subject: libceph: update ceph_msg_header structure
2 bytes of what was reserved space is now used by userspace for the
compat_version field.
Signed-off-by: John Spray <john.spray@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
---
include/linux/ceph/msgr.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ceph/msgr.h b/include/linux/ceph/msgr.h
index cac4b28ac1c0..1c1887206ffa 100644
--- a/include/linux/ceph/msgr.h
+++ b/include/linux/ceph/msgr.h
@@ -152,7 +152,8 @@ struct ceph_msg_header {
receiver: mask against ~PAGE_MASK */
struct ceph_entity_name src;
- __le32 reserved;
+ __le16 compat_version;
+ __le16 reserved;
__le32 crc; /* header crc32c */
} __attribute__ ((packed));
--
cgit v1.2.1
From a3fc98005c9c6e4649d26bee0935a7048a95c9e6 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Tue, 11 Nov 2014 16:30:55 +0800
Subject: libceph: require cephx message signature by default
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@redhat.com>
---
include/linux/ceph/libceph.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index d293f7e38814..8b11a79ca1cb 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -29,6 +29,7 @@
#define CEPH_OPT_NOSHARE (1<<1) /* don't share client with other sbs */
#define CEPH_OPT_MYIP (1<<2) /* specified my ip */
#define CEPH_OPT_NOCRC (1<<3) /* no data crc on writes */
+#define CEPH_OPT_NOMSGAUTH (1<<4) /* not require cephx message signature */
#define CEPH_OPT_DEFAULT (0)
--
cgit v1.2.1
From d74b50bed037794135cb5a4e7418ad71d9848ce1 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Wed, 12 Nov 2014 14:00:43 +0800
Subject: libceph: add SETXATTR/CMPXATTR osd operations support
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@redhat.com>
---
include/linux/ceph/osd_client.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 03aeb27fcc69..bcf9c2180ea5 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -86,6 +86,13 @@ struct ceph_osd_req_op {
u32 truncate_seq;
struct ceph_osd_data osd_data;
} extent;
+ struct {
+ __le32 name_len;
+ __le32 value_len;
+ __u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */
+ __u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */
+ struct ceph_osd_data osd_data;
+ } xattr;
struct {
const char *class_name;
const char *method_name;
@@ -295,6 +302,9 @@ extern void osd_req_op_cls_response_data_pages(struct ceph_osd_request *,
extern void osd_req_op_cls_init(struct ceph_osd_request *osd_req,
unsigned int which, u16 opcode,
const char *class, const char *method);
+extern int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which,
+ u16 opcode, const char *name, const void *value,
+ size_t size, u8 cmp_op, u8 cmp_mode);
extern void osd_req_op_watch_init(struct ceph_osd_request *osd_req,
unsigned int which, u16 opcode,
u64 cookie, u64 version, int flag);
--
cgit v1.2.1
From 715e4cd405cfd67bd058e410b3e599bab2072645 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Thu, 13 Nov 2014 14:40:37 +0800
Subject: libceph: specify position of extent operation
allow specifying position of extent operation in multi-operations
osd request. This is required for cephfs to convert inline data to
normal data (compare xattr, then write object).
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@redhat.com>
---
include/linux/ceph/osd_client.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index bcf9c2180ea5..5d86416d35f2 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -328,7 +328,8 @@ extern struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *,
struct ceph_file_layout *layout,
struct ceph_vino vino,
u64 offset, u64 *len,
- int num_ops, int opcode, int flags,
+ unsigned int which, int num_ops,
+ int opcode, int flags,
struct ceph_snap_context *snapc,
u32 truncate_seq, u64 truncate_size,
bool use_mempool);
--
cgit v1.2.1
From 31c542a199d79f0f402c2f3e04229464510d47ec Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Fri, 14 Nov 2014 21:41:55 +0800
Subject: ceph: add inline data to pagecache
Request reply and cap message can contain inline data. add inline data
to the page cache if there is Fc cap.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
---
include/linux/ceph/ceph_fs.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index 31d8b98b7f96..2d4acfa2c7b7 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -552,6 +552,7 @@ struct ceph_filelock {
int ceph_flags_to_mode(int flags);
+#define CEPH_INLINE_NONE ((__u64)-1)
/* capability bits */
#define CEPH_CAP_PIN 1 /* no specific capabilities beyond the pin */
--
cgit v1.2.1
From 01deead041e03c9a6b4e1b2dd165dee4cced6112 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Fri, 14 Nov 2014 21:56:29 +0800
Subject: ceph: use getattr request to fetch inline data
Add a new parameter 'locked_page' to ceph_do_getattr(). If inline data
in getattr reply will be copied to the page.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
---
include/linux/ceph/ceph_fs.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'include')
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index 2d4acfa2c7b7..c0dadaac26e3 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -617,6 +617,8 @@ int ceph_flags_to_mode(int flags);
CEPH_CAP_LINK_SHARED | \
CEPH_CAP_FILE_SHARED | \
CEPH_CAP_XATTR_SHARED)
+#define CEPH_STAT_CAP_INLINE_DATA (CEPH_CAP_FILE_SHARED | \
+ CEPH_CAP_FILE_RD)
#define CEPH_CAP_ANY_SHARED (CEPH_CAP_AUTH_SHARED | \
CEPH_CAP_LINK_SHARED | \
--
cgit v1.2.1
From 84a1d2d1ecd9ae2fc1ae51d8529090000e88a210 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@redhat.com>
Date: Mon, 17 Nov 2014 21:45:24 +0300
Subject: libceph: fixup includes in pagelist.h
pagelist.h needs to include linux/types.h and asm/byteorder.h and not
rely on other headers pulling yet another set of headers.
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
---
include/linux/ceph/pagelist.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/ceph/pagelist.h b/include/linux/ceph/pagelist.h
index 5f871d84ddce..13d71fe18b0c 100644
--- a/include/linux/ceph/pagelist.h
+++ b/include/linux/ceph/pagelist.h
@@ -1,8 +1,10 @@
#ifndef __FS_CEPH_PAGELIST_H
#define __FS_CEPH_PAGELIST_H
-#include <linux/list.h>
+#include <asm/byteorder.h>
#include <linux/atomic.h>
+#include <linux/list.h>
+#include <linux/types.h>
struct ceph_pagelist {
struct list_head head;
--
cgit v1.2.1
From cb5281a57214581902ac06fb83f0d6ea2d440318 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 17 Dec 2014 18:17:20 +0100
Subject: KVM: move APIC types to arch/x86/
They are not used anymore by IA64, move them away.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
include/linux/kvm_types.h | 27 ---------------------------
1 file changed, 27 deletions(-)
(limited to 'include')
diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h
index b606bb689a3e..931da7e917cf 100644
--- a/include/linux/kvm_types.h
+++ b/include/linux/kvm_types.h
@@ -54,33 +54,6 @@ typedef u64 hfn_t;
typedef hfn_t pfn_t;
-union kvm_ioapic_redirect_entry {
- u64 bits;
- struct {
- u8 vector;
- u8 delivery_mode:3;
- u8 dest_mode:1;
- u8 delivery_status:1;
- u8 polarity:1;
- u8 remote_irr:1;
- u8 trig_mode:1;
- u8 mask:1;
- u8 reserve:7;
- u8 reserved[4];
- u8 dest_id;
- } fields;
-};
-
-struct kvm_lapic_irq {
- u32 vector;
- u32 delivery_mode;
- u32 dest_mode;
- u32 level;
- u32 trig_mode;
- u32 shorthand;
- u32 dest_id;
-};
-
struct gfn_to_hva_cache {
u64 generation;
gpa_t gpa;
--
cgit v1.2.1
From 230fa253df6352af12ad0a16128760b5cb3f92df Mon Sep 17 00:00:00 2001
From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Tue, 25 Nov 2014 10:01:16 +0100
Subject: kernel: Provide READ_ONCE and ASSIGN_ONCE
ACCESS_ONCE does not work reliably on non-scalar types. For
example gcc 4.6 and 4.7 might remove the volatile tag for such
accesses during the SRA (scalar replacement of aggregates) step
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145)
Let's provide READ_ONCE/ASSIGN_ONCE that will do all accesses via
scalar types as suggested by Linus Torvalds. Accesses larger than
the machines word size cannot be guaranteed to be atomic. These
macros will use memcpy and emit a build warning.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
include/linux/compiler.h | 74 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 74 insertions(+)
(limited to 'include')
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index d5ad7b1118fc..a1c81f80978e 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -186,6 +186,80 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
# define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __LINE__)
#endif
+#include <uapi/linux/types.h>
+
+static __always_inline void data_access_exceeds_word_size(void)
+#ifdef __compiletime_warning
+__compiletime_warning("data access exceeds word size and won't be atomic")
+#endif
+;
+
+static __always_inline void data_access_exceeds_word_size(void)
+{
+}
+
+static __always_inline void __read_once_size(volatile void *p, void *res, int size)
+{
+ switch (size) {
+ case 1: *(__u8 *)res = *(volatile __u8 *)p; break;
+ case 2: *(__u16 *)res = *(volatile __u16 *)p; break;
+ case 4: *(__u32 *)res = *(volatile __u32 *)p; break;
+#ifdef CONFIG_64BIT
+ case 8: *(__u64 *)res = *(volatile __u64 *)p; break;
+#endif
+ default:
+ barrier();
+ __builtin_memcpy((void *)res, (const void *)p, size);
+ data_access_exceeds_word_size();
+ barrier();
+ }
+}
+
+static __always_inline void __assign_once_size(volatile void *p, void *res, int size)
+{
+ switch (size) {
+ case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
+ case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
+ case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
+#ifdef CONFIG_64BIT
+ case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
+#endif
+ default:
+ barrier();
+ __builtin_memcpy((void *)p, (const void *)res, size);
+ data_access_exceeds_word_size();
+ barrier();
+ }
+}
+
+/*
+ * Prevent the compiler from merging or refetching reads or writes. The
+ * compiler is also forbidden from reordering successive instances of
+ * READ_ONCE, ASSIGN_ONCE and ACCESS_ONCE (see below), but only when the
+ * compiler is aware of some particular ordering. One way to make the
+ * compiler aware of ordering is to put the two invocations of READ_ONCE,
+ * ASSIGN_ONCE or ACCESS_ONCE() in different C statements.
+ *
+ * In contrast to ACCESS_ONCE these two macros will also work on aggregate
+ * data types like structs or unions. If the size of the accessed data
+ * type exceeds the word size of the machine (e.g., 32 bits or 64 bits)
+ * READ_ONCE() and ASSIGN_ONCE() will fall back to memcpy and print a
+ * compile-time warning.
+ *
+ * Their two major use cases are: (1) Mediating communication between
+ * process-level code and irq/NMI handlers, all running on the same CPU,
+ * and (2) Ensuring that the compiler does not fold, spindle, or otherwise
+ * mutilate accesses that either do not require ordering or that interact
+ * with an explicit memory barrier or atomic instruction that provides the
+ * required ordering.
+ */
+
+#define READ_ONCE(x) \
+ ({ typeof(x) __val; __read_once_size(&x, &__val, sizeof(__val)); __val; })
+
+#define ASSIGN_ONCE(val, x) \
+ ({ typeof(x) __val; __val = val; __assign_once_size(&x, &__val, sizeof(__val)); __val; })
+
#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
--
cgit v1.2.1
From 3875f15207f9ecb3f24a8e91e7ad196899139595 Mon Sep 17 00:00:00 2001
From: Kyle McMartin <kyle@redhat.com>
Date: Thu, 18 Dec 2014 12:57:14 -0500
Subject: uapi/linux/target_core_user.h: fix headers_install.sh badness
scripts/headers_install.sh will transform __packed to
__attribute__((packed)), so the #ifndef is not necessary.
(and, in fact, it's problematic, because we'll end up with the header
containing:
#ifndef __attribute__((packed))
#define __attribu...
and so forth.)
Cc: stable@vger.kernel.org # 3.18
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
include/uapi/linux/target_core_user.h | 4 ----
1 file changed, 4 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/target_core_user.h b/include/uapi/linux/target_core_user.h
index 7dcfbe6771b1..b483d1909d3e 100644
--- a/include/uapi/linux/target_core_user.h
+++ b/include/uapi/linux/target_core_user.h
@@ -6,10 +6,6 @@
#include <linux/types.h>
#include <linux/uio.h>
-#ifndef __packed
-#define __packed __attribute__((packed))
-#endif
-
#define TCMU_VERSION "1.0"
/*
--
cgit v1.2.1
From e48322abb061d75096fe52d71886b237e7ae7bfb Mon Sep 17 00:00:00 2001
From: Pintu Kumar <pintu.k@samsung.com>
Date: Thu, 18 Dec 2014 16:17:15 -0800
Subject: mm: cma: split cma-reserved in dmesg log
When the system boots up, in the dmesg logs we can see the memory
statistics along with total reserved as below. Memory: 458840k/458840k
available, 65448k reserved, 0K highmem
When CMA is enabled, still the total reserved memory remains the same.
However, the CMA memory is not considered as reserved. But, when we see
/proc/meminfo, the CMA memory is part of free memory. This creates
confusion. This patch corrects the problem by properly subtracting the
CMA reserved memory from the total reserved memory in dmesg logs.
Below is the dmesg snapshot from an arm based device with 512MB RAM and
12MB single CMA region.
Before this change:
Memory: 458840k/458840k available, 65448k reserved, 0K highmem
After this change:
Memory: 458840k/458840k available, 53160k reserved, 12288k cma-reserved, 0K highmem
Signed-off-by: Pintu Kumar <pintu.k@samsung.com>
Signed-off-by: Vishnu Pratap Singh <vishnu.ps@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/cma.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'include')
diff --git a/include/linux/cma.h b/include/linux/cma.h
index a93438beb33c..9384ba66e975 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -15,6 +15,7 @@
struct cma;
+extern unsigned long totalcma_pages;
extern phys_addr_t cma_get_base(struct cma *cma);
extern unsigned long cma_get_size(struct cma *cma);
--
cgit v1.2.1
From 464ed18ebdb6236fcff59d2a35d4d2e28668435a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 19 Dec 2014 15:37:54 +0100
Subject: PM: Eliminate CONFIG_PM_RUNTIME
Having switched over all of the users of CONFIG_PM_RUNTIME to use
CONFIG_PM directly, turn the latter into a user-selectable option
and drop the former entirely from the tree.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
---
include/linux/devfreq.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index f1863dcd83ea..ce447f0f1bad 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -188,7 +188,7 @@ extern struct devfreq *devm_devfreq_add_device(struct device *dev,
extern void devm_devfreq_remove_device(struct device *dev,
struct devfreq *devfreq);
-/* Supposed to be called by PM_SLEEP/PM_RUNTIME callbacks */
+/* Supposed to be called by PM callbacks */
extern int devfreq_suspend_device(struct devfreq *devfreq);
extern int devfreq_resume_device(struct devfreq *devfreq);
--
cgit v1.2.1
From d64cb71bede87dbca60d586a7bb4cef87fbe2731 Mon Sep 17 00:00:00 2001
From: Jaewon Kim <jaewon02.kim@samsung.com>
Date: Wed, 17 Dec 2014 10:31:08 -0800
Subject: Input: add regulator haptic driver
This change adds support for haptic driver controlled by voltage of a
regulator. Userspace can control the device via Force Feedback interface
from input framework.
Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: Hyunhee Kim <hyunhee.kim@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
include/linux/platform_data/regulator-haptic.h | 29 ++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 include/linux/platform_data/regulator-haptic.h
(limited to 'include')
diff --git a/include/linux/platform_data/regulator-haptic.h b/include/linux/platform_data/regulator-haptic.h
new file mode 100644
index 000000000000..5658e58e0738
--- /dev/null
+++ b/include/linux/platform_data/regulator-haptic.h
@@ -0,0 +1,29 @@
+/*
+ * Regulator Haptic Platform Data
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Author: Jaewon Kim <jaewon02.kim@samsung.com>
+ * Author: Hyunhee Kim <hyunhee.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _REGULATOR_HAPTIC_H
+#define _REGULATOR_HAPTIC_H
+
+/*
+ * struct regulator_haptic_data - Platform device data
+ *
+ * @max_volt: maximum voltage value supplied to the haptic motor.
+ * <The unit of the voltage is a micro>
+ * @min_volt: minimum voltage value supplied to the haptic motor.
+ * <The unit of the voltage is a micro>
+ */
+struct regulator_haptic_data {
+ unsigned int max_volt;
+ unsigned int min_volt;
+};
+
+#endif /* _REGULATOR_HAPTIC_H */
--
cgit v1.2.1
From 6d08acd2d32e3e877579315dc3202d7a5f336d98 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Sat, 20 Dec 2014 12:15:49 -0800
Subject: in6: fix conflict with glibc
Resolve conflicts between glibc definition of IPV6 socket options
and those defined in Linux headers. Looks like earlier efforts to
solve this did not cover all the definitions.
It resolves warnings during iproute2 build.
Please consider for stable as well.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/uapi/linux/in6.h | 3 ++-
include/uapi/linux/libc-compat.h | 3 +++
2 files changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/uapi/linux/in6.h b/include/uapi/linux/in6.h
index 74a2a1773494..79b12b004ade 100644
--- a/include/uapi/linux/in6.h
+++ b/include/uapi/linux/in6.h
@@ -149,7 +149,7 @@ struct in6_flowlabel_req {
/*
* IPV6 socket options
*/
-
+#if __UAPI_DEF_IPV6_OPTIONS
#define IPV6_ADDRFORM 1
#define IPV6_2292PKTINFO 2
#define IPV6_2292HOPOPTS 3
@@ -196,6 +196,7 @@ struct in6_flowlabel_req {
#define IPV6_IPSEC_POLICY 34
#define IPV6_XFRM_POLICY 35
+#endif
/*
* Multicast:
diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h
index c140620dad92..e28807ad17fa 100644
--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -69,6 +69,7 @@
#define __UAPI_DEF_SOCKADDR_IN6 0
#define __UAPI_DEF_IPV6_MREQ 0
#define __UAPI_DEF_IPPROTO_V6 0
+#define __UAPI_DEF_IPV6_OPTIONS 0
#else
@@ -82,6 +83,7 @@
#define __UAPI_DEF_SOCKADDR_IN6 1
#define __UAPI_DEF_IPV6_MREQ 1
#define __UAPI_DEF_IPPROTO_V6 1
+#define __UAPI_DEF_IPV6_OPTIONS 1
#endif /* _NETINET_IN_H */
@@ -103,6 +105,7 @@
#define __UAPI_DEF_SOCKADDR_IN6 1
#define __UAPI_DEF_IPV6_MREQ 1
#define __UAPI_DEF_IPPROTO_V6 1
+#define __UAPI_DEF_IPV6_OPTIONS 1
/* Definitions for xattr.h */
#define __UAPI_DEF_XATTR 1
--
cgit v1.2.1
From 041d7b98ffe59c59fdd639931dea7d74f9aa9a59 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Tue, 23 Dec 2014 13:02:04 -0500
Subject: audit: restore AUDIT_LOGINUID unset ABI
A regression was caused by commit 780a7654cee8:
audit: Make testing for a valid loginuid explicit.
(which in turn attempted to fix a regression caused by e1760bd)
When audit_krule_to_data() fills in the rules to get a listing, there was a
missing clause to convert back from AUDIT_LOGINUID_SET to AUDIT_LOGINUID.
This broke userspace by not returning the same information that was sent and
expected.
The rule:
auditctl -a exit,never -F auid=-1
gives:
auditctl -l
LIST_RULES: exit,never f24=0 syscall=all
when it should give:
LIST_RULES: exit,never auid=-1 (0xffffffff) syscall=all
Tag it so that it is reported the same way it was set. Create a new
private flags audit_krule field (pflags) to store it that won't interact with
the public one from the API.
Cc: stable@vger.kernel.org # v3.10-rc1+
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
---
include/linux/audit.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include')
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 36dffeccebdb..93331929d643 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -47,6 +47,7 @@ struct sk_buff;
struct audit_krule {
int vers_ops;
+ u32 pflags;
u32 flags;
u32 listnr;
u32 action;
@@ -64,6 +65,9 @@ struct audit_krule {
u64 prio;
};
+/* Flag to indicate legacy AUDIT_LOGINUID unset usage */
+#define AUDIT_LOGINUID_LEGACY 0x1
+
struct audit_field {
u32 type;
union {
--
cgit v1.2.1
From da6b51d007da17fd394405055e2f0109ec5f05f4 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Wed, 24 Dec 2014 13:11:17 +1000
Subject: Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"
This reverts commit 355a70183848f21198e9f6296bd646df3478a26d.
This had some bad side effects under normal operation, and should
have been dropped earlier.
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
include/drm/drm_gem.h | 7 -------
1 file changed, 7 deletions(-)
(limited to 'include')
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 780511a459c0..1e6ae1458f7a 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -119,13 +119,6 @@ struct drm_gem_object {
* simply leave it as NULL.
*/
struct dma_buf_attachment *import_attach;
-
- /**
- * dumb - created as dumb buffer
- * Whether the gem object was created using the dumb buffer interface
- * as such it may not be used for GPU rendering.
- */
- bool dumb;
};
void drm_gem_object_release(struct drm_gem_object *obj);
--
cgit v1.2.1
From ef8f342b43c48035458306b5e5b3dcb949929b1d Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Tue, 23 Dec 2014 17:50:37 +0100
Subject: neigh: remove next ptr from struct neigh_table
After commit
d7480fd3b173 ("neigh: remove dynamic neigh table registration support"),
this field is not used anymore.
CC: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/neighbour.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index eb070b3674a1..76f708486aae 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -190,7 +190,6 @@ struct neigh_hash_table {
struct neigh_table {
- struct neigh_table *next;
int family;
int entry_size;
int key_len;
--
cgit v1.2.1
From 5f35227ea34bb616c436d9da47fc325866c428f3 Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Tue, 23 Dec 2014 22:37:26 -0800
Subject: net: Generalize ndo_gso_check to ndo_features_check
GSO isn't the only offload feature with restrictions that
potentially can't be expressed with the current features mechanism.
Checksum is another although it's a general issue that could in
theory apply to anything. Even if it may be possible to
implement these restrictions in other ways, it can result in
duplicate code or inefficient per-packet behavior.
This generalizes ndo_gso_check so that drivers can remove any
features that don't make sense for a given packet, similar to
netif_skb_features(). It also converts existing driver
restrictions to the new format, completing the work that was
done to support tunnel protocols since the issues apply to
checksums as well.
By actually removing features from the set that are used to do
offloading, it solves another problem with the existing
interface. In these cases, GSO would run with the original set
of features and not do anything because it appears that
segmentation is not required.
CC: Tom Herbert <therbert@google.com>
CC: Joe Stringer <joestringer@nicira.com>
CC: Eric Dumazet <edumazet@google.com>
CC: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Tom Herbert <therbert@google.com>
Fixes: 04ffcb255f22 ("net: Add ndo_gso_check")
Tested-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netdevice.h | 20 +++++++++++---------
include/net/vxlan.h | 28 ++++++++++++++++++++++++----
2 files changed, 35 insertions(+), 13 deletions(-)
(limited to 'include')
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c31f74d76ebd..679e6e90aa4c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1012,12 +1012,15 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
* Callback to use for xmit over the accelerated station. This
* is used in place of ndo_start_xmit on accelerated net
* devices.
- * bool (*ndo_gso_check) (struct sk_buff *skb,
- * struct net_device *dev);
+ * netdev_features_t (*ndo_features_check) (struct sk_buff *skb,
+ * struct net_device *dev
+ * netdev_features_t features);
* Called by core transmit path to determine if device is capable of
- * performing GSO on a packet. The device returns true if it is
- * able to GSO the packet, false otherwise. If the return value is
- * false the stack will do software GSO.
+ * performing offload operations on a given packet. This is to give
+ * the device an opportunity to implement any restrictions that cannot
+ * be otherwise expressed by feature flags. The check is called with
+ * the set of features that the stack has calculated and it returns
+ * those the driver believes to be appropriate.
*
* int (*ndo_switch_parent_id_get)(struct net_device *dev,
* struct netdev_phys_item_id *psid);
@@ -1178,8 +1181,9 @@ struct net_device_ops {
struct net_device *dev,
void *priv);
int (*ndo_get_lock_subclass)(struct net_device *dev);
- bool (*ndo_gso_check) (struct sk_buff *skb,
- struct net_device *dev);
+ netdev_features_t (*ndo_features_check) (struct sk_buff *skb,
+ struct net_device *dev,
+ netdev_features_t features);
#ifdef CONFIG_NET_SWITCHDEV
int (*ndo_switch_parent_id_get)(struct net_device *dev,
struct netdev_phys_item_id *psid);
@@ -3611,8 +3615,6 @@ static inline bool netif_needs_gso(struct net_device *dev, struct sk_buff *skb,
netdev_features_t features)
{
return skb_is_gso(skb) && (!skb_gso_ok(skb, features) ||
- (dev->netdev_ops->ndo_gso_check &&
- !dev->netdev_ops->ndo_gso_check(skb, dev)) ||
unlikely((skb->ip_summed != CHECKSUM_PARTIAL) &&
(skb->ip_summed != CHECKSUM_UNNECESSARY)));
}
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 57cccd0052e5..903461aa5644 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -1,6 +1,9 @@
#ifndef __NET_VXLAN_H
#define __NET_VXLAN_H 1
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/if_vlan.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/udp.h>
@@ -51,16 +54,33 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
__be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
__be16 src_port, __be16 dst_port, __be32 vni, bool xnet);
-static inline bool vxlan_gso_check(struct sk_buff *skb)
+static inline netdev_features_t vxlan_features_check(struct sk_buff *skb,
+ netdev_features_t features)
{
- if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) &&
+ u8 l4_hdr = 0;
+
+ if (!skb->encapsulation)
+ return features;
+
+ switch (vlan_get_protocol(skb)) {
+ case htons(ETH_P_IP):
+ l4_hdr = ip_hdr(skb)->protocol;
+ break;
+ case htons(ETH_P_IPV6):
+ l4_hdr = ipv6_hdr(skb)->nexthdr;
+ break;
+ default:
+ return features;;
+ }
+
+ if ((l4_hdr == IPPROTO_UDP) &&
(skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
skb->inner_protocol != htons(ETH_P_TEB) ||
(skb_inner_mac_header(skb) - skb_transport_header(skb) !=
sizeof(struct udphdr) + sizeof(struct vxlanhdr))))
- return false;
+ return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
- return true;
+ return features;
}
/* IP header + UDP + VXLAN + Ethernet header */
--
cgit v1.2.1
From f8403a2e47afb37bcd3b7e286996d138a116c39d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 22 Dec 2014 18:56:36 +0100
Subject: genetlink: pass only network namespace to genl_has_listeners()
There's no point to force the caller to know about the internal
genl_sock to use inside struct net, just have them pass the network
namespace. This doesn't really change code generation since it's
an inline, but makes the caller less magic - there's never any
reason to pass another socket.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/genetlink.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index af10c2cf8a1d..38620da4aa7a 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -395,11 +395,11 @@ static inline int genl_set_err(struct genl_family *family, struct net *net,
}
static inline int genl_has_listeners(struct genl_family *family,
- struct sock *sk, unsigned int group)
+ struct net *net, unsigned int group)
{
if (WARN_ON_ONCE(group >= family->n_mcgrps))
return -EINVAL;
group = family->mcgrp_offset + group;
- return netlink_has_listeners(sk, group);
+ return netlink_has_listeners(net->genl_sock, group);
}
#endif /* __NET_GENERIC_NETLINK_H */
--
cgit v1.2.1
From c380d9a7afff0e4c2e5f3c1c2dc7d2f4214dd962 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 23 Dec 2014 20:54:40 +0100
Subject: genetlink: pass multicast bind/unbind to families
In order to make the newly fixed multicast bind/unbind
functionality in generic netlink, pass them down to the
appropriate family.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/genetlink.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'include')
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 38620da4aa7a..3ed31e5a445b 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -31,6 +31,9 @@ struct genl_info;
* do additional, common, filtering and return an error
* @post_doit: called after an operation's doit callback, it may
* undo operations done by pre_doit, for example release locks
+ * @mcast_bind: a socket bound to the given multicast group (which
+ * is given as the offset into the groups array)
+ * @mcast_unbind: a socket was unbound from the given multicast group
* @attrbuf: buffer to store parsed attributes
* @family_list: family list
* @mcgrps: multicast groups used by this family (private)
@@ -53,6 +56,8 @@ struct genl_family {
void (*post_doit)(const struct genl_ops *ops,
struct sk_buff *skb,
struct genl_info *info);
+ int (*mcast_bind)(int group);
+ void (*mcast_unbind)(int group);
struct nlattr ** attrbuf; /* private */
const struct genl_ops * ops; /* private */
const struct genl_multicast_group *mcgrps; /* private */
--
cgit v1.2.1
From 023e2cfa36c31b0ad28c159a1bb0d61ff57334c8 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 23 Dec 2014 21:00:06 +0100
Subject: netlink/genetlink: pass network namespace to bind/unbind
Netlink families can exist in multiple namespaces, and for the most
part multicast subscriptions are per network namespace. Thus it only
makes sense to have bind/unbind notifications per network namespace.
To achieve this, pass the network namespace of a given client socket
to the bind/unbind functions.
Also do this in generic netlink, and there also make sure that any
bind for multicast groups that only exist in init_net is rejected.
This isn't really a problem if it is accepted since a client in a
different namespace will never receive any notifications from such
a group, but it can confuse the family if not rejected (it's also
possible to silently (without telling the family) accept it, but it
would also have to be ignored on unbind so families that take any
kind of action on bind/unbind won't do unnecessary work for invalid
clients like that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/netlink.h | 4 ++--
include/net/genetlink.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 9e572daa15d5..02fc86d2348e 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -46,8 +46,8 @@ struct netlink_kernel_cfg {
unsigned int flags;
void (*input)(struct sk_buff *skb);
struct mutex *cb_mutex;
- int (*bind)(int group);
- void (*unbind)(int group);
+ int (*bind)(struct net *net, int group);
+ void (*unbind)(struct net *net, int group);
bool (*compare)(struct net *net, struct sock *sk);
};
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 3ed31e5a445b..84125088c309 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -56,8 +56,8 @@ struct genl_family {
void (*post_doit)(const struct genl_ops *ops,
struct sk_buff *skb,
struct genl_info *info);
- int (*mcast_bind)(int group);
- void (*mcast_unbind)(int group);
+ int (*mcast_bind)(struct net *net, int group);
+ void (*mcast_unbind)(struct net *net, int group);
struct nlattr ** attrbuf; /* private */
const struct genl_ops * ops; /* private */
const struct genl_multicast_group *mcgrps; /* private */
--
cgit v1.2.1
From b28e0506fafd9c987bba7a6a71ea02a37fcabdea Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 25 Dec 2014 16:03:27 +0200
Subject: virtio_ring: document alignment requirements
Host needs to know vring element alignment requirements:
simply doing alignof on structures doesn't work reliably: on some
platforms gcc has alignof(uint32_t) == 2.
Add macros for alignment as specified in virtio 1.0 cs01,
export them to userspace as well.
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
include/uapi/linux/virtio_ring.h | 7 +++++++
1 file changed, 7 insertions(+)
(limited to 'include')
diff --git a/include/uapi/linux/virtio_ring.h b/include/uapi/linux/virtio_ring.h
index 61c818a7fe70..a3318f31e8e7 100644
--- a/include/uapi/linux/virtio_ring.h
+++ b/include/uapi/linux/virtio_ring.h
@@ -101,6 +101,13 @@ struct vring {
struct vring_used *used;
};
+/* Alignment requirements for vring elements.
+ * When using pre-virtio 1.0 layout, these fall out naturally.
+ */
+#define VRING_AVAIL_ALIGN_SIZE 2
+#define VRING_USED_ALIGN_SIZE 4
+#define VRING_DESC_ALIGN_SIZE 16
+
/* The standard layout for the ring is a continuous chunk of memory which looks
* like this. We assume num is a power of 2.
*
--
cgit v1.2.1
From 45f87de57f8fad59302fd263dd81ffa4843b5b24 Mon Sep 17 00:00:00 2001
From: Michal Hocko <mhocko@suse.cz>
Date: Mon, 29 Dec 2014 20:30:35 +0100
Subject: mm: get rid of radix tree gfp mask for pagecache_get_page
Commit 2457aec63745 ("mm: non-atomically mark page accessed during page
cache allocation where possible") has added a separate parameter for
specifying gfp mask for radix tree allocations.
Not only this is less than optimal from the API point of view because it
is error prone, it is also buggy currently because
grab_cache_page_write_begin is using GFP_KERNEL for radix tree and if
fgp_flags doesn't contain FGP_NOFS (mostly controlled by fs by
AOP_FLAG_NOFS flag) but the mapping_gfp_mask has __GFP_FS cleared then
the radix tree allocation wouldn't obey the restriction and might
recurse into filesystem and cause deadlocks. This is the case for most
filesystems unfortunately because only ext4 and gfs2 are using
AOP_FLAG_NOFS.
Let's simply remove radix_gfp_mask parameter because the allocation
context is same for both page cache and for the radix tree. Just make
sure that the radix tree gets only the sane subset of the mask (e.g. do
not pass __GFP_WRITE).
Long term it is more preferable to convert remaining users of
AOP_FLAG_NOFS to use mapping_gfp_mask instead and simplify this
interface even further.
Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/pagemap.h | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
(limited to 'include')
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 7ea069cd3257..4b3736f7065c 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -251,7 +251,7 @@ pgoff_t page_cache_prev_hole(struct address_space *mapping,
#define FGP_NOWAIT 0x00000020
struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,
- int fgp_flags, gfp_t cache_gfp_mask, gfp_t radix_gfp_mask);
+ int fgp_flags, gfp_t cache_gfp_mask);
/**
* find_get_page - find and get a page reference
@@ -266,13 +266,13 @@ struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,
static inline struct page *find_get_page(struct address_space *mapping,
pgoff_t offset)
{
- return pagecache_get_page(mapping, offset, 0, 0, 0);
+ return pagecache_get_page(mapping, offset, 0, 0);
}
static inline struct page *find_get_page_flags(struct address_space *mapping,
pgoff_t offset, int fgp_flags)
{
- return pagecache_get_page(mapping, offset, fgp_flags, 0, 0);
+ return pagecache_get_page(mapping, offset, fgp_flags, 0);
}
/**
@@ -292,7 +292,7 @@ static inline struct page *find_get_page_flags(struct address_space *mapping,
static inline struct page *find_lock_page(struct address_space *mapping,
pgoff_t offset)
{
- return pagecache_get_page(mapping, offset, FGP_LOCK, 0, 0);
+ return pagecache_get_page(mapping, offset, FGP_LOCK, 0);
}
/**
@@ -319,7 +319,7 @@ static inline struct page *find_or_create_page(struct address_space *mapping,
{
return pagecache_get_page(mapping, offset,
FGP_LOCK|FGP_ACCESSED|FGP_CREAT,
- gfp_mask, gfp_mask & GFP_RECLAIM_MASK);
+ gfp_mask);
}
/**
@@ -340,8 +340,7 @@ static inline struct page *grab_cache_page_nowait(struct address_space *mapping,
{
return pagecache_get_page(mapping, index,
FGP_LOCK|FGP_CREAT|FGP_NOFS|FGP_NOWAIT,
- mapping_gfp_mask(mapping),
- GFP_NOFS);
+ mapping_gfp_mask(mapping));
}
struct page *find_get_entry(struct address_space *mapping, pgoff_t offset);
--
cgit v1.2.1
From 62f64a880af2e82d1b41cb02cb43b88d30413993 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 29 Dec 2014 19:41:40 +0100
Subject: ALSA: pcm: Fix kerneldoc for params_*() functions
Fix a copy and paste error in the kernel doc description for the params_*()
functions.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/sound/pcm.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 1e7f74acc2ec..b429b73e875e 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -857,7 +857,7 @@ static inline unsigned int params_channels(const struct snd_pcm_hw_params *p)
}
/**
- * params_channels - Get the sample rate from the hw params
+ * params_rate - Get the sample rate from the hw params
* @p: hw params
*/
static inline unsigned int params_rate(const struct snd_pcm_hw_params *p)
@@ -866,7 +866,7 @@ static inline unsigned int params_rate(const struct snd_pcm_hw_params *p)
}
/**
- * params_channels - Get the period size (in frames) from the hw params
+ * params_period_size - Get the period size (in frames) from the hw params
* @p: hw params
*/
static inline unsigned int params_period_size(const struct snd_pcm_hw_params *p)
@@ -875,7 +875,7 @@ static inline unsigned int params_period_size(const struct snd_pcm_hw_params *p)
}
/**
- * params_channels - Get the number of periods from the hw params
+ * params_periods - Get the number of periods from the hw params
* @p: hw params
*/
static inline unsigned int params_periods(const struct snd_pcm_hw_params *p)
@@ -884,7 +884,7 @@ static inline unsigned int params_periods(const struct snd_pcm_hw_params *p)
}
/**
- * params_channels - Get the buffer size (in frames) from the hw params
+ * params_buffer_size - Get the buffer size (in frames) from the hw params
* @p: hw params
*/
static inline unsigned int params_buffer_size(const struct snd_pcm_hw_params *p)
@@ -893,7 +893,7 @@ static inline unsigned int params_buffer_size(const struct snd_pcm_hw_params *p)
}
/**
- * params_channels - Get the buffer size (in bytes) from the hw params
+ * params_buffer_bytes - Get the buffer size (in bytes) from the hw params
* @p: hw params
*/
static inline unsigned int params_buffer_bytes(const struct snd_pcm_hw_params *p)
--
cgit v1.2.1
From 1e359a5de861a57aa04d92bb620f52a5c1d7f8b1 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 5 Jan 2015 10:28:49 +0100
Subject: Revert "mac80211: Fix accounting of the tailroom-needed counter"
This reverts commit ca34e3b5c808385b175650605faa29e71e91991b.
It turns out that the p54 and cw2100 drivers assume that there's
tailroom even when they don't say they really need it. However,
there's currently no way for them to explicitly say they do need
it, so for now revert this.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=90331.
Cc: stable@vger.kernel.org
Fixes: ca34e3b5c808 ("mac80211: Fix accounting of the tailroom-needed counter")
Reported-by: Christopher Chavez <chrischavez@gmx.us>
Bisected-by: Larry Finger <Larry.Finger@lwfinger.net>
Debugged-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
include/net/mac80211.h | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 58d719ddaa60..29c7be8808d5 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1270,8 +1270,7 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev);
*
* @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the
* driver to indicate that it requires IV generation for this
- * particular key. Setting this flag does not necessarily mean that SKBs
- * will have sufficient tailroom for ICV or MIC.
+ * particular key.
* @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by
* the driver for a TKIP key if it requires Michael MIC
* generation in software.
@@ -1283,9 +1282,7 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev);
* @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver
* if space should be prepared for the IV, but the IV
* itself should not be generated. Do not set together with
- * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. Setting this flag does
- * not necessarily mean that SKBs will have sufficient tailroom for ICV or
- * MIC.
+ * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key.
* @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received
* management frames. The flag can help drivers that have a hardware
* crypto implementation that doesn't deal with management frames
--
cgit v1.2.1
From af8f3f514d193eb353f9b6cea503c55d074e6153 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.com>
Date: Sun, 4 Jan 2015 18:55:02 +0800
Subject: ACPI / processor: Convert apic_id to phys_id to make it arch agnostic
apic_id in MADT table is the CPU hardware id which identify
it self in the system for x86 and ia64, OSPM will use it for
SMP init to map APIC ID to logical cpu number in the early
boot, when the DSDT/SSDT (ACPI namespace) is scanned later, the
ACPI processor driver is probed and the driver will use acpi_id
in DSDT to get the apic_id, then map to the logical cpu number
which is needed by the processor driver.
Before ACPI 5.0, only x86 and ia64 were supported in ACPI spec,
so apic_id is used both in arch code and ACPI core which is
pretty fine. Since ACPI 5.0, ARM is supported by ACPI and
APIC is not available on ARM, this will confuse people when
apic_id is both used by x86 and ARM in one function.
So convert apic_id to phys_id (which is the original meaning)
in ACPI processor dirver to make it arch agnostic, but leave the
arch dependent code unchanged, no functional change.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/acpi/processor.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 3ca9b751f122..b95dc32a6e6b 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -196,8 +196,8 @@ struct acpi_processor_flags {
struct acpi_processor {
acpi_handle handle;
u32 acpi_id;
- u32 apic_id;
- u32 id;
+ u32 phys_id; /* CPU hardware ID such as APIC ID for x86 */
+ u32 id; /* CPU logical ID allocated by OS */
u32 pblk;
int performance_platform_limit;
int throttling_platform_limit;
@@ -310,8 +310,8 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
#endif /* CONFIG_CPU_FREQ */
/* in processor_core.c */
-int acpi_get_apicid(acpi_handle, int type, u32 acpi_id);
-int acpi_map_cpuid(int apic_id, u32 acpi_id);
+int acpi_get_phys_id(acpi_handle, int type, u32 acpi_id);
+int acpi_map_cpuid(int phys_id, u32 acpi_id);
int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
/* in processor_pdc.c */
--
cgit v1.2.1
From d02dc27db0dc74683efc4a2b36f55f5594451f38 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.com>
Date: Sun, 4 Jan 2015 18:55:03 +0800
Subject: ACPI / processor: Rename acpi_(un)map_lsapic() to acpi_(un)map_cpu()
acpi_map_lsapic() will allocate a logical CPU number and map it to
physical CPU id (such as APIC id) for the hot-added CPU, it will also
do some mapping for NUMA node id and etc, acpi_unmap_lsapic() will
do the reverse.
We can see that the name of the function is a little bit confusing and
arch (IA64) dependent so rename them as acpi_(un)map_cpu() to make arch
agnostic and explicit.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
include/linux/acpi.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 856d381b1d5b..d459cd17b477 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -147,8 +147,8 @@ void acpi_numa_arch_fixup(void);
#ifdef CONFIG_ACPI_HOTPLUG_CPU
/* Arch dependent functions for cpu hotplug support */
-int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu);
-int acpi_unmap_lsapic(int cpu);
+int acpi_map_cpu(acpi_handle handle, int physid, int *pcpu);
+int acpi_unmap_cpu(int cpu);
#endif /* CONFIG_ACPI_HOTPLUG_CPU */
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
--
cgit v1.2.1
From b81c55db1053805866a242cd0bfbfb0c60c499b3 Mon Sep 17 00:00:00 2001
From: Oded Gabbay <oded.gabbay@amd.com>
Date: Mon, 29 Dec 2014 15:24:25 +0200
Subject: drm/amdkfd: reformat IOCTL definitions to drm-style
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This patch reformats the ioctl definitions in kfd_ioctl.h to be similar to the
drm ioctls definition style.
v2: Renamed KFD_COMMAND_(START|END) to AMDKFD_...
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
---
include/uapi/linux/kfd_ioctl.h | 37 ++++++++++++++++++++++---------------
1 file changed, 22 insertions(+), 15 deletions(-)
(limited to 'include')
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index 7acef41fc209..af94f31e33ac 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -128,27 +128,34 @@ struct kfd_ioctl_get_process_apertures_args {
uint32_t pad;
};
-#define KFD_IOC_MAGIC 'K'
+#define AMDKFD_IOCTL_BASE 'K'
+#define AMDKFD_IO(nr) _IO(AMDKFD_IOCTL_BASE, nr)
+#define AMDKFD_IOR(nr, type) _IOR(AMDKFD_IOCTL_BASE, nr, type)
+#define AMDKFD_IOW(nr, type) _IOW(AMDKFD_IOCTL_BASE, nr, type)
+#define AMDKFD_IOWR(nr, type) _IOWR(AMDKFD_IOCTL_BASE, nr, type)
-#define KFD_IOC_GET_VERSION \
- _IOR(KFD_IOC_MAGIC, 1, struct kfd_ioctl_get_version_args)
+#define AMDKFD_IOC_GET_VERSION \
+ AMDKFD_IOR(0x01, struct kfd_ioctl_get_version_args)
-#define KFD_IOC_CREATE_QUEUE \
- _IOWR(KFD_IOC_MAGIC, 2, struct kfd_ioctl_create_queue_args)
+#define AMDKFD_IOC_CREATE_QUEUE \
+ AMDKFD_IOWR(0x02, struct kfd_ioctl_create_queue_args)
-#define KFD_IOC_DESTROY_QUEUE \
- _IOWR(KFD_IOC_MAGIC, 3, struct kfd_ioctl_destroy_queue_args)
+#define AMDKFD_IOC_DESTROY_QUEUE \
+ AMDKFD_IOWR(0x03, struct kfd_ioctl_destroy_queue_args)
-#define KFD_IOC_SET_MEMORY_POLICY \
- _IOW(KFD_IOC_MAGIC, 4, struct kfd_ioctl_set_memory_policy_args)
+#define AMDKFD_IOC_SET_MEMORY_POLICY \
+ AMDKFD_IOW(0x04, struct kfd_ioctl_set_memory_policy_args)
-#define KFD_IOC_GET_CLOCK_COUNTERS \
- _IOWR(KFD_IOC_MAGIC, 5, struct kfd_ioctl_get_clock_counters_args)
+#define AMDKFD_IOC_GET_CLOCK_COUNTERS \
+ AMDKFD_IOWR(0x05, struct kfd_ioctl_get_clock_counters_args)
-#define KFD_IOC_GET_PROCESS_APERTURES \
- _IOR(KFD_IOC_MAGIC, 6, struct kfd_ioctl_get_process_apertures_args)
+#define AMDKFD_IOC_GET_PROCESS_APERTURES \
+ AMDKFD_IOR(0x06, struct kfd_ioctl_get_process_apertures_args)
-#define KFD_IOC_UPDATE_QUEUE \
- _IOW(KFD_IOC_MAGIC, 7, struct kfd_ioctl_update_queue_args)
+#define AMDKFD_IOC_UPDATE_QUEUE \
+ AMDKFD_IOW(0x07, struct kfd_ioctl_update_queue_args)
+
+#define AMDKFD_COMMAND_START 0x01
+#define AMDKFD_COMMAND_END 0x08
#endif
--
cgit v1.2.1
From fee7e49d45149fba60156f5b59014f764d3e3728 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 6 Jan 2015 13:00:05 -0800
Subject: mm: propagate error from stack expansion even for guard page
Jay Foad reports that the address sanitizer test (asan) sometimes gets
confused by a stack pointer that ends up being outside the stack vma
that is reported by /proc/maps.
This happens due to an interaction between RLIMIT_STACK and the guard
page: when we do the guard page check, we ignore the potential error
from the stack expansion, which effectively results in a missing guard
page, since the expected stack expansion won't have been done.
And since /proc/maps explicitly ignores the guard page (commit
d7824370e263: "mm: fix up some user-visible effects of the stack guard
page"), the stack pointer ends up being outside the reported stack area.
This is the minimal patch: it just propagates the error. It also
effectively makes the guard page part of the stack limit, which in turn
measn that the actual real stack is one page less than the stack limit.
Let's see if anybody notices. We could teach acct_stack_growth() to
allow an extra page for a grow-up/grow-down stack in the rlimit test,
but I don't want to add more complexity if it isn't needed.
Reported-and-tested-by: Jay Foad <jay.foad@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/mm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mm.h b/include/linux/mm.h
index f80d0194c9bc..80fc92a49649 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1952,7 +1952,7 @@ extern int expand_downwards(struct vm_area_struct *vma,
#if VM_GROWSUP
extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);
#else
- #define expand_upwards(vma, address) do { } while (0)
+ #define expand_upwards(vma, address) (0)
#endif
/* Look up the first VMA which satisfies addr < vm_end, NULL if none. */
--
cgit v1.2.1
From d7d5a007b1c64c617ce3ee30c973ed0bb93443d9 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@redhat.com>
Date: Fri, 19 Dec 2014 14:00:41 +0300
Subject: libceph: fix sparse endianness warnings
The only real issue is the one in auth_x.c and it came with
3.19-rc1 merge.
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
---
include/linux/ceph/osd_client.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 5d86416d35f2..61b19c46bdb3 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -87,8 +87,8 @@ struct ceph_osd_req_op {
struct ceph_osd_data osd_data;
} extent;
struct {
- __le32 name_len;
- __le32 value_len;
+ u32 name_len;
+ u32 value_len;
__u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */
__u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */
struct ceph_osd_data osd_data;
--
cgit v1.2.1
From 7a3ef208e662f4b63d43a23f61a64a129c525bbc Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <koct9i@gmail.com>
Date: Thu, 8 Jan 2015 14:32:15 -0800
Subject: mm: prevent endless growth of anon_vma hierarchy
Constantly forking task causes unlimited grow of anon_vma chain. Each
next child allocates new level of anon_vmas and links vma to all
previous levels because pages might be inherited from any level.
This patch adds heuristic which decides to reuse existing anon_vma
instead of forking new one. It adds counter anon_vma->degree which
counts linked vmas and directly descending anon_vmas and reuses anon_vma
if counter is lower than two. As a result each anon_vma has either vma
or at least two descending anon_vmas. In such trees half of nodes are
leafs with alive vmas, thus count of anon_vmas is no more than two times
bigger than count of vmas.
This heuristic reuses anon_vmas as few as possible because each reuse
adds false aliasing among vmas and rmap walker ought to scan more ptes
when it searches where page is might be mapped.
Link: http://lkml.kernel.org/r/20120816024610.GA5350@evergreen.ssec.wisc.edu
Fixes: 5beb49305251 ("mm: change anon_vma linking to fix multi-process server scalability issue")
[akpm@linux-foundation.org: fix typo, per Rik]
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Reported-by: Daniel Forrest <dan.forrest@ssec.wisc.edu>
Tested-by: Michal Hocko <mhocko@suse.cz>
Tested-by: Jerome Marchand <jmarchan@redhat.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: <stable@vger.kernel.org> [2.6.34+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/rmap.h | 10 ++++++++++
1 file changed, 10 insertions(+)
(limited to 'include')
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index c0c2bce6b0b7..d9d7e7e56352 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -36,6 +36,16 @@ struct anon_vma {
*/
atomic_t refcount;
+ /*
+ * Count of child anon_vmas and VMAs which points to this anon_vma.
+ *
+ * This counter is used for making decision about reusing anon_vma
+ * instead of forking new one. See comments in function anon_vma_clone.
+ */
+ unsigned degree;
+
+ struct anon_vma *parent; /* Parent of this anon_vma */
+
/*
* NOTE: the LSB of the rb_root.rb_node is set by
* mm_take_all_locks() _after_ taking the above lock. So the
--
cgit v1.2.1
From 2d6d7f98284648c5ed113fe22a132148950b140f Mon Sep 17 00:00:00 2001
From: Johannes Weiner <hannes@cmpxchg.org>
Date: Thu, 8 Jan 2015 14:32:18 -0800
Subject: mm: protect set_page_dirty() from ongoing truncation
Tejun, while reviewing the code, spotted the following race condition
between the dirtying and truncation of a page:
__set_page_dirty_nobuffers() __delete_from_page_cache()
if (TestSetPageDirty(page))
page->mapping = NULL
if (PageDirty())
dec_zone_page_state(page, NR_FILE_DIRTY);
dec_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE);
if (page->mapping)
account_page_dirtied(page)
__inc_zone_page_state(page, NR_FILE_DIRTY);
__inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE);
which results in an imbalance of NR_FILE_DIRTY and BDI_RECLAIMABLE.
Dirtiers usually lock out truncation, either by holding the page lock
directly, or in case of zap_pte_range(), by pinning the mapcount with
the page table lock held. The notable exception to this rule, though,
is do_wp_page(), for which this race exists. However, do_wp_page()
already waits for a locked page to unlock before setting the dirty bit,
in order to prevent a race where clear_page_dirty() misses the page bit
in the presence of dirty ptes. Upgrade that wait to a fully locked
set_page_dirty() to also cover the situation explained above.
Afterwards, the code in set_page_dirty() dealing with a truncation race
is no longer needed. Remove it.
Reported-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/writeback.h | 1 -
1 file changed, 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index a219be961c0a..00048339c23e 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -177,7 +177,6 @@ int write_cache_pages(struct address_space *mapping,
struct writeback_control *wbc, writepage_t writepage,
void *data);
int do_writepages(struct address_space *mapping, struct writeback_control *wbc);
-void set_page_dirty_balance(struct page *page);
void writeback_set_ratelimit(void);
void tag_pages_for_writeback(struct address_space *mapping,
pgoff_t start, pgoff_t end);
--
cgit v1.2.1
From 75069f2b5bfb5164beafaf3da597279c25b5535a Mon Sep 17 00:00:00 2001
From: David Drysdale <drysdale@google.com>
Date: Thu, 8 Jan 2015 14:32:29 -0800
Subject: vfs: renumber FMODE_NONOTIFY and add to uniqueness check
Fix clashing values for O_PATH and FMODE_NONOTIFY on sparc. The
clashing O_PATH value was added in commit 5229645bdc35 ("vfs: add
nonconflicting values for O_PATH") but this can't be changed as it is
user-visible.
FMODE_NONOTIFY is only used internally in the kernel, but it is in the
same numbering space as the other O_* flags, as indicated by the comment
at the top of include/uapi/asm-generic/fcntl.h (and its use in
fs/notify/fanotify/fanotify_user.c). So renumber it to avoid the clash.
All of this has happened before (commit 12ed2e36c98a: "fanotify:
FMODE_NONOTIFY and __O_SYNC in sparc conflict"), and all of this will
happen again -- so update the uniqueness check in fcntl_init() to
include __FMODE_NONOTIFY.
Signed-off-by: David Drysdale <drysdale@google.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/fs.h | 2 +-
include/uapi/asm-generic/fcntl.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'include')
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f90c0282c114..42efe13077b6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -135,7 +135,7 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
#define FMODE_CAN_WRITE ((__force fmode_t)0x40000)
/* File was opened by fanotify and shouldn't generate fanotify events */
-#define FMODE_NONOTIFY ((__force fmode_t)0x1000000)
+#define FMODE_NONOTIFY ((__force fmode_t)0x4000000)
/*
* Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h
index 7543b3e51331..e063effe0cc1 100644
--- a/include/uapi/asm-generic/fcntl.h
+++ b/include/uapi/asm-generic/fcntl.h
@@ -5,7 +5,7 @@
/*
* FMODE_EXEC is 0x20
- * FMODE_NONOTIFY is 0x1000000
+ * FMODE_NONOTIFY is 0x4000000
* These cannot be used by userspace O_* until internal and external open
* flags are split.
* -Eric Paris
--
cgit v1.2.1
From 88a7c26af8dab2f2d69f5a6067eb670694ec38c0 Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@amacapital.net>
Date: Sun, 4 Jan 2015 10:36:19 -0800
Subject: perf: Move task_pt_regs sampling into arch code
On x86_64, at least, task_pt_regs may be only partially initialized
in many contexts, so x86_64 should not use it without extra care
from interrupt context, let alone NMI context.
This will allow x86_64 to override the logic and will supply some
scratch space to use to make a cleaner copy of user regs.
Tested-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: chenggang.qcg@taobao.com
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/e431cd4c18c2e1c44c774f10758527fb2d1025c4.1420396372.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/perf_event.h | 12 +++++++-----
include/linux/perf_regs.h | 16 ++++++++++++++++
2 files changed, 23 insertions(+), 5 deletions(-)
(limited to 'include')
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 486e84ccb1f9..4f7a61ca4b39 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -79,11 +79,6 @@ struct perf_branch_stack {
struct perf_branch_entry entries[0];
};
-struct perf_regs {
- __u64 abi;
- struct pt_regs *regs;
-};
-
struct task_struct;
/*
@@ -610,7 +605,14 @@ struct perf_sample_data {
u32 reserved;
} cpu_entry;
struct perf_callchain_entry *callchain;
+
+ /*
+ * regs_user may point to task_pt_regs or to regs_user_copy, depending
+ * on arch details.
+ */
struct perf_regs regs_user;
+ struct pt_regs regs_user_copy;
+
struct perf_regs regs_intr;
u64 stack_user_size;
} ____cacheline_aligned;
diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h
index 3c73d5fe18be..a5f98d53d732 100644
--- a/include/linux/perf_regs.h
+++ b/include/linux/perf_regs.h
@@ -1,11 +1,19 @@
#ifndef _LINUX_PERF_REGS_H
#define _LINUX_PERF_REGS_H
+struct perf_regs {
+ __u64 abi;
+ struct pt_regs *regs;
+};
+
#ifdef CONFIG_HAVE_PERF_REGS
#include <asm/perf_regs.h>
u64 perf_reg_value(struct pt_regs *regs, int idx);
int perf_reg_validate(u64 mask);
u64 perf_reg_abi(struct task_struct *task);
+void perf_get_regs_user(struct perf_regs *regs_user,
+ struct pt_regs *regs,
+ struct pt_regs *regs_user_copy);
#else
static inline u64 perf_reg_value(struct pt_regs *regs, int idx)
{
@@ -21,5 +29,13 @@ static inline u64 perf_reg_abi(struct task_struct *task)
{
return PERF_SAMPLE_REGS_ABI_NONE;
}
+
+static inline void perf_get_regs_user(struct perf_regs *regs_user,
+ struct pt_regs *regs,
+ struct pt_regs *regs_user_copy)
+{
+ regs_user->regs = task_pt_regs(current);
+ regs_user->abi = perf_reg_abi(current);
+}
#endif /* CONFIG_HAVE_PERF_REGS */
#endif /* _LINUX_PERF_REGS_H */
--
cgit v1.2.1
From 448c7f3830ca283e485aa943279acea6bde8b270 Mon Sep 17 00:00:00 2001
From: Henrik Rydberg <rydberg@bitmath.org>
Date: Sun, 1 Feb 2015 11:25:14 -0800
Subject: Input: MT - add support for balanced slot assignment
Some devices are not fast enough to differentiate between a fast-moving
contact and a new contact. This problem cannot be fully resolved because
information is truly missing, but it is possible to safe-guard against
obvious mistakes by restricting movement with a maximum displacement.
The new problem formulation for dmax > 0 cannot benefit from the speedup
for positive definite matrices, but since the convergence is faster, the
result is about the same. For a handful of contacts, the latency difference
is truly negligible.
Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Henrik Rydberg <rydberg@bitmath.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
include/linux/input/mt.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index f583ff639776..d7188de4db96 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -119,7 +119,8 @@ struct input_mt_pos {
};
int input_mt_assign_slots(struct input_dev *dev, int *slots,
- const struct input_mt_pos *pos, int num_pos);
+ const struct input_mt_pos *pos, int num_pos,
+ int dmax);
int input_mt_get_slot_by_key(struct input_dev *dev, int key);
--
cgit v1.2.1
From 344d635b9a41b19837ccf8083a99ea688027019c Mon Sep 17 00:00:00 2001
From: Brad Griffis <bgriffis@ti.com>
Date: Tue, 3 Feb 2015 11:44:12 -0800
Subject: Input: ti_am335x_tsc - remove udelay in interrupt handler
TSC interrupt handler had udelay to avoid reporting of false pen-up
interrupt to user space. This patch implements workaround suggesting in
Advisory 1.0.31 of silicon errata for am335x, thus eliminating udelay and
touchscreen lag. This also improves performance of touchscreen and
eliminates sudden jump of cursor at touch release.
IDLECONFIG and CHARGECONFIG registers are to be configured with same values
in order to eliminate false pen-up events. This workaround may result in
false pen-down to be detected, hence considerable charge step delay needs
to be added. The charge delay is set to 0xB000 (in terms of ADC clock
cycles) by default.
TSC steps are disabled at the end of every sampling cycle and EOS bit is
set. Once the EOS bit is set, the TSC steps need to be re-enabled to begin
next sampling cycle.
Signed-off-by: Brad Griffis <bgriffis@ti.com>
[vigneshr@ti.com: Ported the patch from v3.12 to v3.19rc1]
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
include/linux/mfd/ti_am335x_tscadc.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index e2e70053470e..3f4e994ace2b 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -52,6 +52,7 @@
/* IRQ enable */
#define IRQENB_HW_PEN BIT(0)
+#define IRQENB_EOS BIT(1)
#define IRQENB_FIFO0THRES BIT(2)
#define IRQENB_FIFO0OVRRUN BIT(3)
#define IRQENB_FIFO0UNDRFLW BIT(4)
@@ -107,7 +108,7 @@
/* Charge delay */
#define CHARGEDLY_OPEN_MASK (0x3FFFF << 0)
#define CHARGEDLY_OPEN(val) ((val) << 0)
-#define CHARGEDLY_OPENDLY CHARGEDLY_OPEN(1)
+#define CHARGEDLY_OPENDLY CHARGEDLY_OPEN(0x400)
/* Control register */
#define CNTRLREG_TSCSSENB BIT(0)
--
cgit v1.2.1