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-rw-r--r--arch/sparc/Kconfig3
-rw-r--r--arch/sparc/include/asm/compat.h2
-rw-r--r--arch/sparc/include/asm/irqflags_32.h35
-rw-r--r--arch/sparc/include/asm/irqflags_64.h29
-rw-r--r--arch/sparc/include/asm/jump_label.h32
-rw-r--r--arch/sparc/include/asm/memblock.h2
-rw-r--r--arch/sparc/include/asm/perf_event.h4
-rw-r--r--arch/sparc/kernel/Makefile2
-rw-r--r--arch/sparc/kernel/irq_32.c13
-rw-r--r--arch/sparc/kernel/jump_label.c47
-rw-r--r--arch/sparc/kernel/module.c6
-rw-r--r--arch/sparc/kernel/pci_msi.c8
-rw-r--r--arch/sparc/kernel/pcr.c8
-rw-r--r--arch/sparc/kernel/perf_event.c248
-rw-r--r--arch/sparc/kernel/signal32.c161
-rw-r--r--arch/sparc/kernel/signal_32.c55
-rw-r--r--arch/sparc/kernel/signal_64.c45
-rw-r--r--arch/sparc/mm/init_64.c46
-rw-r--r--arch/sparc/prom/p1275.c2
19 files changed, 445 insertions, 303 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 491e9d6de191..3e9d31401fb2 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -26,10 +26,12 @@ config SPARC
select ARCH_WANT_OPTIONAL_GPIOLIB
select RTC_CLASS
select RTC_DRV_M48T59
+ select HAVE_IRQ_WORK
select HAVE_PERF_EVENTS
select PERF_USE_VMALLOC
select HAVE_DMA_ATTRS
select HAVE_DMA_API_DEBUG
+ select HAVE_ARCH_JUMP_LABEL
config SPARC32
def_bool !64BIT
@@ -53,6 +55,7 @@ config SPARC64
select RTC_DRV_BQ4802
select RTC_DRV_SUN4V
select RTC_DRV_STARFIRE
+ select HAVE_IRQ_WORK
select HAVE_PERF_EVENTS
select PERF_USE_VMALLOC
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 5016f76ea98a..6f57325bb883 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -167,7 +167,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
return (u32)(unsigned long)uptr;
}
-static inline void __user *compat_alloc_user_space(long len)
+static inline void __user *arch_compat_alloc_user_space(long len)
{
struct pt_regs *regs = current_thread_info()->kregs;
unsigned long usp = regs->u_regs[UREG_I6];
diff --git a/arch/sparc/include/asm/irqflags_32.h b/arch/sparc/include/asm/irqflags_32.h
index 0fca9d97d44f..d4d0711de0f9 100644
--- a/arch/sparc/include/asm/irqflags_32.h
+++ b/arch/sparc/include/asm/irqflags_32.h
@@ -5,33 +5,40 @@
*
* This file gets included from lowlevel asm headers too, to provide
* wrapped versions of the local_irq_*() APIs, based on the
- * raw_local_irq_*() functions from the lowlevel headers.
+ * arch_local_irq_*() functions from the lowlevel headers.
*/
#ifndef _ASM_IRQFLAGS_H
#define _ASM_IRQFLAGS_H
#ifndef __ASSEMBLY__
-extern void raw_local_irq_restore(unsigned long);
-extern unsigned long __raw_local_irq_save(void);
-extern void raw_local_irq_enable(void);
+#include <linux/types.h>
-static inline unsigned long getipl(void)
+extern void arch_local_irq_restore(unsigned long);
+extern unsigned long arch_local_irq_save(void);
+extern void arch_local_irq_enable(void);
+
+static inline unsigned long arch_local_save_flags(void)
{
- unsigned long retval;
+ unsigned long flags;
+
+ asm volatile("rd %%psr, %0" : "=r" (flags));
+ return flags;
+}
- __asm__ __volatile__("rd %%psr, %0" : "=r" (retval));
- return retval;
+static inline void arch_local_irq_disable(void)
+{
+ arch_local_irq_save();
}
-#define raw_local_save_flags(flags) ((flags) = getipl())
-#define raw_local_irq_save(flags) ((flags) = __raw_local_irq_save())
-#define raw_local_irq_disable() ((void) __raw_local_irq_save())
-#define raw_irqs_disabled() ((getipl() & PSR_PIL) != 0)
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+ return (flags & PSR_PIL) != 0;
+}
-static inline int raw_irqs_disabled_flags(unsigned long flags)
+static inline bool arch_irqs_disabled(void)
{
- return ((flags & PSR_PIL) != 0);
+ return arch_irqs_disabled_flags(arch_local_save_flags());
}
#endif /* (__ASSEMBLY__) */
diff --git a/arch/sparc/include/asm/irqflags_64.h b/arch/sparc/include/asm/irqflags_64.h
index bfa1ea45b4cd..aab969c82c2b 100644
--- a/arch/sparc/include/asm/irqflags_64.h
+++ b/arch/sparc/include/asm/irqflags_64.h
@@ -5,7 +5,7 @@
*
* This file gets included from lowlevel asm headers too, to provide
* wrapped versions of the local_irq_*() APIs, based on the
- * raw_local_irq_*() functions from the lowlevel headers.
+ * arch_local_irq_*() functions from the lowlevel headers.
*/
#ifndef _ASM_IRQFLAGS_H
#define _ASM_IRQFLAGS_H
@@ -14,7 +14,7 @@
#ifndef __ASSEMBLY__
-static inline unsigned long __raw_local_save_flags(void)
+static inline unsigned long arch_local_save_flags(void)
{
unsigned long flags;
@@ -26,10 +26,7 @@ static inline unsigned long __raw_local_save_flags(void)
return flags;
}
-#define raw_local_save_flags(flags) \
- do { (flags) = __raw_local_save_flags(); } while (0)
-
-static inline void raw_local_irq_restore(unsigned long flags)
+static inline void arch_local_irq_restore(unsigned long flags)
{
__asm__ __volatile__(
"wrpr %0, %%pil"
@@ -39,7 +36,7 @@ static inline void raw_local_irq_restore(unsigned long flags)
);
}
-static inline void raw_local_irq_disable(void)
+static inline void arch_local_irq_disable(void)
{
__asm__ __volatile__(
"wrpr %0, %%pil"
@@ -49,7 +46,7 @@ static inline void raw_local_irq_disable(void)
);
}
-static inline void raw_local_irq_enable(void)
+static inline void arch_local_irq_enable(void)
{
__asm__ __volatile__(
"wrpr 0, %%pil"
@@ -59,22 +56,17 @@ static inline void raw_local_irq_enable(void)
);
}
-static inline int raw_irqs_disabled_flags(unsigned long flags)
+static inline int arch_irqs_disabled_flags(unsigned long flags)
{
return (flags > 0);
}
-static inline int raw_irqs_disabled(void)
+static inline int arch_irqs_disabled(void)
{
- unsigned long flags = __raw_local_save_flags();
-
- return raw_irqs_disabled_flags(flags);
+ return arch_irqs_disabled_flags(arch_local_save_flags());
}
-/*
- * For spinlocks, etc:
- */
-static inline unsigned long __raw_local_irq_save(void)
+static inline unsigned long arch_local_irq_save(void)
{
unsigned long flags, tmp;
@@ -100,9 +92,6 @@ static inline unsigned long __raw_local_irq_save(void)
return flags;
}
-#define raw_local_irq_save(flags) \
- do { (flags) = __raw_local_irq_save(); } while (0)
-
#endif /* (__ASSEMBLY__) */
#endif /* !(_ASM_IRQFLAGS_H) */
diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h
new file mode 100644
index 000000000000..62e66d7b2fb6
--- /dev/null
+++ b/arch/sparc/include/asm/jump_label.h
@@ -0,0 +1,32 @@
+#ifndef _ASM_SPARC_JUMP_LABEL_H
+#define _ASM_SPARC_JUMP_LABEL_H
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <asm/system.h>
+
+#define JUMP_LABEL_NOP_SIZE 4
+
+#define JUMP_LABEL(key, label) \
+ do { \
+ asm goto("1:\n\t" \
+ "nop\n\t" \
+ "nop\n\t" \
+ ".pushsection __jump_table, \"a\"\n\t"\
+ ".word 1b, %l[" #label "], %c0\n\t" \
+ ".popsection \n\t" \
+ : : "i" (key) : : label);\
+ } while (0)
+
+#endif /* __KERNEL__ */
+
+typedef u32 jump_label_t;
+
+struct jump_entry {
+ jump_label_t code;
+ jump_label_t target;
+ jump_label_t key;
+};
+
+#endif
diff --git a/arch/sparc/include/asm/memblock.h b/arch/sparc/include/asm/memblock.h
index f12af880649b..c67b047ef85e 100644
--- a/arch/sparc/include/asm/memblock.h
+++ b/arch/sparc/include/asm/memblock.h
@@ -5,6 +5,4 @@
#define MEMBLOCK_DBG(fmt...) prom_printf(fmt)
-#define MEMBLOCK_REAL_LIMIT 0
-
#endif /* !(_SPARC64_MEMBLOCK_H) */
diff --git a/arch/sparc/include/asm/perf_event.h b/arch/sparc/include/asm/perf_event.h
index 727af70646cb..6e8bfa1786da 100644
--- a/arch/sparc/include/asm/perf_event.h
+++ b/arch/sparc/include/asm/perf_event.h
@@ -1,10 +1,6 @@
#ifndef __ASM_SPARC_PERF_EVENT_H
#define __ASM_SPARC_PERF_EVENT_H
-extern void set_perf_event_pending(void);
-
-#define PERF_EVENT_INDEX_OFFSET 0
-
#ifdef CONFIG_PERF_EVENTS
#include <asm/ptrace.h>
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 0c2dc1f24a9a..599398fbbc7c 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -119,3 +119,5 @@ obj-$(CONFIG_COMPAT) += $(audit--y)
pc--$(CONFIG_PERF_EVENTS) := perf_event.o
obj-$(CONFIG_SPARC64) += $(pc--y)
+
+obj-$(CONFIG_SPARC64) += jump_label.o
diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c
index e1af43728329..0116d8d10def 100644
--- a/arch/sparc/kernel/irq_32.c
+++ b/arch/sparc/kernel/irq_32.c
@@ -57,7 +57,7 @@
#define SMP_NOP2
#define SMP_NOP3
#endif /* SMP */
-unsigned long __raw_local_irq_save(void)
+unsigned long arch_local_irq_save(void)
{
unsigned long retval;
unsigned long tmp;
@@ -74,8 +74,9 @@ unsigned long __raw_local_irq_save(void)
return retval;
}
+EXPORT_SYMBOL(arch_local_irq_save);
-void raw_local_irq_enable(void)
+void arch_local_irq_enable(void)
{
unsigned long tmp;
@@ -89,8 +90,9 @@ void raw_local_irq_enable(void)
: "i" (PSR_PIL)
: "memory");
}
+EXPORT_SYMBOL(arch_local_irq_enable);
-void raw_local_irq_restore(unsigned long old_psr)
+void arch_local_irq_restore(unsigned long old_psr)
{
unsigned long tmp;
@@ -105,10 +107,7 @@ void raw_local_irq_restore(unsigned long old_psr)
: "i" (PSR_PIL), "r" (old_psr)
: "memory");
}
-
-EXPORT_SYMBOL(__raw_local_irq_save);
-EXPORT_SYMBOL(raw_local_irq_enable);
-EXPORT_SYMBOL(raw_local_irq_restore);
+EXPORT_SYMBOL(arch_local_irq_restore);
/*
* Dave Redman (djhr@tadpole.co.uk)
diff --git a/arch/sparc/kernel/jump_label.c b/arch/sparc/kernel/jump_label.c
new file mode 100644
index 000000000000..ea2dafc93d78
--- /dev/null
+++ b/arch/sparc/kernel/jump_label.c
@@ -0,0 +1,47 @@
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/cpu.h>
+
+#include <linux/jump_label.h>
+#include <linux/memory.h>
+
+#ifdef HAVE_JUMP_LABEL
+
+void arch_jump_label_transform(struct jump_entry *entry,
+ enum jump_label_type type)
+{
+ u32 val;
+ u32 *insn = (u32 *) (unsigned long) entry->code;
+
+ if (type == JUMP_LABEL_ENABLE) {
+ s32 off = (s32)entry->target - (s32)entry->code;
+
+#ifdef CONFIG_SPARC64
+ /* ba,pt %xcc, . + (off << 2) */
+ val = 0x10680000 | ((u32) off >> 2);
+#else
+ /* ba . + (off << 2) */
+ val = 0x10800000 | ((u32) off >> 2);
+#endif
+ } else {
+ val = 0x01000000;
+ }
+
+ get_online_cpus();
+ mutex_lock(&text_mutex);
+ *insn = val;
+ flushi(insn);
+ mutex_unlock(&text_mutex);
+ put_online_cpus();
+}
+
+void arch_jump_label_text_poke_early(jump_label_t addr)
+{
+ u32 *insn_p = (u32 *) (unsigned long) addr;
+
+ *insn_p = 0x01000000;
+ flushi(insn_p);
+}
+
+#endif
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index f848aadf54dc..ee3c7dde8d9f 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -18,6 +18,9 @@
#include <asm/spitfire.h>
#ifdef CONFIG_SPARC64
+
+#include <linux/jump_label.h>
+
static void *module_map(unsigned long size)
{
struct vm_struct *area;
@@ -227,6 +230,9 @@ int module_finalize(const Elf_Ehdr *hdr,
const Elf_Shdr *sechdrs,
struct module *me)
{
+ /* make jump label nops */
+ jump_label_apply_nops(me);
+
/* Cheetah's I-cache is fully coherent. */
if (tlb_type == spitfire) {
unsigned long va;
diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c
index 548b8ca9c210..b210416ace7b 100644
--- a/arch/sparc/kernel/pci_msi.c
+++ b/arch/sparc/kernel/pci_msi.c
@@ -114,10 +114,10 @@ static void free_msi(struct pci_pbm_info *pbm, int msi_num)
static struct irq_chip msi_irq = {
.name = "PCI-MSI",
- .mask = mask_msi_irq,
- .unmask = unmask_msi_irq,
- .enable = unmask_msi_irq,
- .disable = mask_msi_irq,
+ .irq_mask = mask_msi_irq,
+ .irq_unmask = unmask_msi_irq,
+ .irq_enable = unmask_msi_irq,
+ .irq_disable = mask_msi_irq,
/* XXX affinity XXX */
};
diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c
index c4a6a50b4849..b87873c0e8ea 100644
--- a/arch/sparc/kernel/pcr.c
+++ b/arch/sparc/kernel/pcr.c
@@ -7,7 +7,7 @@
#include <linux/init.h>
#include <linux/irq.h>
-#include <linux/perf_event.h>
+#include <linux/irq_work.h>
#include <linux/ftrace.h>
#include <asm/pil.h>
@@ -43,14 +43,14 @@ void __irq_entry deferred_pcr_work_irq(int irq, struct pt_regs *regs)
old_regs = set_irq_regs(regs);
irq_enter();
-#ifdef CONFIG_PERF_EVENTS
- perf_event_do_pending();
+#ifdef CONFIG_IRQ_WORK
+ irq_work_run();
#endif
irq_exit();
set_irq_regs(old_regs);
}
-void set_perf_event_pending(void)
+void arch_irq_work_raise(void)
{
set_softint(1 << PIL_DEFERRED_PCR_WORK);
}
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 357ced3c33ff..0d6deb55a2ae 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -658,13 +658,16 @@ static u64 maybe_change_configuration(struct cpu_hw_events *cpuc, u64 pcr)
enc = perf_event_get_enc(cpuc->events[i]);
pcr &= ~mask_for_index(idx);
- pcr |= event_encoding(enc, idx);
+ if (hwc->state & PERF_HES_STOPPED)
+ pcr |= nop_for_index(idx);
+ else
+ pcr |= event_encoding(enc, idx);
}
out:
return pcr;
}
-void hw_perf_enable(void)
+static void sparc_pmu_enable(struct pmu *pmu)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
u64 pcr;
@@ -691,7 +694,7 @@ void hw_perf_enable(void)
pcr_ops->write(cpuc->pcr);
}
-void hw_perf_disable(void)
+static void sparc_pmu_disable(struct pmu *pmu)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
u64 val;
@@ -710,19 +713,65 @@ void hw_perf_disable(void)
pcr_ops->write(cpuc->pcr);
}
-static void sparc_pmu_disable(struct perf_event *event)
+static int active_event_index(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ int i;
+
+ for (i = 0; i < cpuc->n_events; i++) {
+ if (cpuc->event[i] == event)
+ break;
+ }
+ BUG_ON(i == cpuc->n_events);
+ return cpuc->current_idx[i];
+}
+
+static void sparc_pmu_start(struct perf_event *event, int flags)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ int idx = active_event_index(cpuc, event);
+
+ if (flags & PERF_EF_RELOAD) {
+ WARN_ON_ONCE(!(event->hw.state & PERF_HES_UPTODATE));
+ sparc_perf_event_set_period(event, &event->hw, idx);
+ }
+
+ event->hw.state = 0;
+
+ sparc_pmu_enable_event(cpuc, &event->hw, idx);
+}
+
+static void sparc_pmu_stop(struct perf_event *event, int flags)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ int idx = active_event_index(cpuc, event);
+
+ if (!(event->hw.state & PERF_HES_STOPPED)) {
+ sparc_pmu_disable_event(cpuc, &event->hw, idx);
+ event->hw.state |= PERF_HES_STOPPED;
+ }
+
+ if (!(event->hw.state & PERF_HES_UPTODATE) && (flags & PERF_EF_UPDATE)) {
+ sparc_perf_event_update(event, &event->hw, idx);
+ event->hw.state |= PERF_HES_UPTODATE;
+ }
+}
+
+static void sparc_pmu_del(struct perf_event *event, int _flags)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
- struct hw_perf_event *hwc = &event->hw;
unsigned long flags;
int i;
local_irq_save(flags);
- perf_disable();
+ perf_pmu_disable(event->pmu);
for (i = 0; i < cpuc->n_events; i++) {
if (event == cpuc->event[i]) {
- int idx = cpuc->current_idx[i];
+ /* Absorb the final count and turn off the
+ * event.
+ */
+ sparc_pmu_stop(event, PERF_EF_UPDATE);
/* Shift remaining entries down into
* the existing slot.
@@ -734,13 +783,6 @@ static void sparc_pmu_disable(struct perf_event *event)
cpuc->current_idx[i];
}
- /* Absorb the final count and turn off the
- * event.
- */
- sparc_pmu_disable_event(cpuc, hwc, idx);
- barrier();
- sparc_perf_event_update(event, hwc, idx);
-
perf_event_update_userpage(event);
cpuc->n_events--;
@@ -748,23 +790,10 @@ static void sparc_pmu_disable(struct perf_event *event)
}
}
- perf_enable();
+ perf_pmu_enable(event->pmu);
local_irq_restore(flags);
}
-static int active_event_index(struct cpu_hw_events *cpuc,
- struct perf_event *event)
-{
- int i;
-
- for (i = 0; i < cpuc->n_events; i++) {
- if (cpuc->event[i] == event)
- break;
- }
- BUG_ON(i == cpuc->n_events);
- return cpuc->current_idx[i];
-}
-
static void sparc_pmu_read(struct perf_event *event)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
@@ -774,15 +803,6 @@ static void sparc_pmu_read(struct perf_event *event)
sparc_perf_event_update(event, hwc, idx);
}
-static void sparc_pmu_unthrottle(struct perf_event *event)
-{
- struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
- int idx = active_event_index(cpuc, event);
- struct hw_perf_event *hwc = &event->hw;
-
- sparc_pmu_enable_event(cpuc, hwc, idx);
-}
-
static atomic_t active_events = ATOMIC_INIT(0);
static DEFINE_MUTEX(pmc_grab_mutex);
@@ -877,7 +897,7 @@ static int sparc_check_constraints(struct perf_event **evts,
if (!n_ev)
return 0;
- if (n_ev > perf_max_events)
+ if (n_ev > MAX_HWEVENTS)
return -1;
msk0 = perf_event_get_msk(events[0]);
@@ -984,23 +1004,27 @@ static int collect_events(struct perf_event *group, int max_count,
return n;
}
-static int sparc_pmu_enable(struct perf_event *event)
+static int sparc_pmu_add(struct perf_event *event, int ef_flags)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
int n0, ret = -EAGAIN;
unsigned long flags;
local_irq_save(flags);
- perf_disable();
+ perf_pmu_disable(event->pmu);
n0 = cpuc->n_events;
- if (n0 >= perf_max_events)
+ if (n0 >= MAX_HWEVENTS)
goto out;
cpuc->event[n0] = event;
cpuc->events[n0] = event->hw.event_base;
cpuc->current_idx[n0] = PIC_NO_INDEX;
+ event->hw.state = PERF_HES_UPTODATE;
+ if (!(ef_flags & PERF_EF_START))
+ event->hw.state |= PERF_HES_STOPPED;
+
/*
* If group events scheduling transaction was started,
* skip the schedulability test here, it will be peformed
@@ -1020,12 +1044,12 @@ nocheck:
ret = 0;
out:
- perf_enable();
+ perf_pmu_enable(event->pmu);
local_irq_restore(flags);
return ret;
}
-static int __hw_perf_event_init(struct perf_event *event)
+static int sparc_pmu_event_init(struct perf_event *event)
{
struct perf_event_attr *attr = &event->attr;
struct perf_event *evts[MAX_HWEVENTS];
@@ -1038,16 +1062,37 @@ static int __hw_perf_event_init(struct perf_event *event)
if (atomic_read(&nmi_active) < 0)
return -ENODEV;
- if (attr->type == PERF_TYPE_HARDWARE) {
+ switch (attr->type) {
+ case PERF_TYPE_HARDWARE:
if (attr->config >= sparc_pmu->max_events)
return -EINVAL;
pmap = sparc_pmu->event_map(attr->config);
- } else if (attr->type == PERF_TYPE_HW_CACHE) {
+ break;
+
+ case PERF_TYPE_HW_CACHE:
pmap = sparc_map_cache_event(attr->config);
if (IS_ERR(pmap))
return PTR_ERR(pmap);
- } else
- return -EOPNOTSUPP;
+ break;
+
+ case PERF_TYPE_RAW:
+ pmap = NULL;
+ break;
+
+ default:
+ return -ENOENT;
+
+ }
+
+ if (pmap) {
+ hwc->event_base = perf_event_encode(pmap);
+ } else {
+ /*
+ * User gives us "(encoding << 16) | pic_mask" for
+ * PERF_TYPE_RAW events.
+ */
+ hwc->event_base = attr->config;
+ }
/* We save the enable bits in the config_base. */
hwc->config_base = sparc_pmu->irq_bit;
@@ -1058,12 +1103,10 @@ static int __hw_perf_event_init(struct perf_event *event)
if (!attr->exclude_hv)
hwc->config_base |= sparc_pmu->hv_bit;
- hwc->event_base = perf_event_encode(pmap);
-
n = 0;
if (event->group_leader != event) {
n = collect_events(event->group_leader,
- perf_max_events - 1,
+ MAX_HWEVENTS - 1,
evts, events, current_idx_dmy);
if (n < 0)
return -EINVAL;
@@ -1099,10 +1142,11 @@ static int __hw_perf_event_init(struct perf_event *event)
* Set the flag to make pmu::enable() not perform the
* schedulability test, it will be performed at commit time
*/
-static void sparc_pmu_start_txn(const struct pmu *pmu)
+static void sparc_pmu_start_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events);
+ perf_pmu_disable(pmu);
cpuhw->group_flag |= PERF_EVENT_TXN;
}
@@ -1111,11 +1155,12 @@ static void sparc_pmu_start_txn(const struct pmu *pmu)
* Clear the flag and pmu::enable() will perform the
* schedulability test.
*/
-static void sparc_pmu_cancel_txn(const struct pmu *pmu)
+static void sparc_pmu_cancel_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events);
cpuhw->group_flag &= ~PERF_EVENT_TXN;
+ perf_pmu_enable(pmu);
}
/*
@@ -1123,7 +1168,7 @@ static void sparc_pmu_cancel_txn(const struct pmu *pmu)
* Perform the group schedulability test as a whole
* Return 0 if success
*/
-static int sparc_pmu_commit_txn(const struct pmu *pmu)
+static int sparc_pmu_commit_txn(struct pmu *pmu)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
int n;
@@ -1139,28 +1184,24 @@ static int sparc_pmu_commit_txn(const struct pmu *pmu)
return -EAGAIN;
cpuc->group_flag &= ~PERF_EVENT_TXN;
+ perf_pmu_enable(pmu);
return 0;
}
-static const struct pmu pmu = {
- .enable = sparc_pmu_enable,
- .disable = sparc_pmu_disable,
+static struct pmu pmu = {
+ .pmu_enable = sparc_pmu_enable,
+ .pmu_disable = sparc_pmu_disable,
+ .event_init = sparc_pmu_event_init,
+ .add = sparc_pmu_add,
+ .del = sparc_pmu_del,
+ .start = sparc_pmu_start,
+ .stop = sparc_pmu_stop,
.read = sparc_pmu_read,
- .unthrottle = sparc_pmu_unthrottle,
.start_txn = sparc_pmu_start_txn,
.cancel_txn = sparc_pmu_cancel_txn,
.commit_txn = sparc_pmu_commit_txn,
};
-const struct pmu *hw_perf_event_init(struct perf_event *event)
-{
- int err = __hw_perf_event_init(event);
-
- if (err)
- return ERR_PTR(err);
- return &pmu;
-}
-
void perf_event_print_debug(void)
{
unsigned long flags;
@@ -1236,7 +1277,7 @@ static int __kprobes perf_event_nmi_handler(struct notifier_block *self,
continue;
if (perf_event_overflow(event, 1, &data, regs))
- sparc_pmu_disable_event(cpuc, hwc, idx);
+ sparc_pmu_stop(event, 0);
}
return NOTIFY_STOP;
@@ -1277,28 +1318,21 @@ void __init init_hw_perf_events(void)
pr_cont("Supported PMU type is '%s'\n", sparc_pmu_type);
- /* All sparc64 PMUs currently have 2 events. */
- perf_max_events = 2;
-
+ perf_pmu_register(&pmu);
register_die_notifier(&perf_event_nmi_notifier);
}
-static inline void callchain_store(struct perf_callchain_entry *entry, u64 ip)
-{
- if (entry->nr < PERF_MAX_STACK_DEPTH)
- entry->ip[entry->nr++] = ip;
-}
-
-static void perf_callchain_kernel(struct pt_regs *regs,
- struct perf_callchain_entry *entry)
+void perf_callchain_kernel(struct perf_callchain_entry *entry,
+ struct pt_regs *regs)
{
unsigned long ksp, fp;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
int graph = 0;
#endif
- callchain_store(entry, PERF_CONTEXT_KERNEL);
- callchain_store(entry, regs->tpc);
+ stack_trace_flush();
+
+ perf_callchain_store(entry, regs->tpc);
ksp = regs->u_regs[UREG_I6];
fp = ksp + STACK_BIAS;
@@ -1322,13 +1356,13 @@ static void perf_callchain_kernel(struct pt_regs *regs,
pc = sf->callers_pc;
fp = (unsigned long)sf->fp + STACK_BIAS;
}
- callchain_store(entry, pc);
+ perf_callchain_store(entry, pc);
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
if ((pc + 8UL) == (unsigned long) &return_to_handler) {
int index = current->curr_ret_stack;
if (current->ret_stack && index >= graph) {
pc = current->ret_stack[index - graph].ret;
- callchain_store(entry, pc);
+ perf_callchain_store(entry, pc);
graph++;
}
}
@@ -1336,13 +1370,12 @@ static void perf_callchain_kernel(struct pt_regs *regs,
} while (entry->nr < PERF_MAX_STACK_DEPTH);
}
-static void perf_callchain_user_64(struct pt_regs *regs,
- struct perf_callchain_entry *entry)
+static void perf_callchain_user_64(struct perf_callchain_entry *entry,
+ struct pt_regs *regs)
{
unsigned long ufp;
- callchain_store(entry, PERF_CONTEXT_USER);
- callchain_store(entry, regs->tpc);
+ perf_callchain_store(entry, regs->tpc);
ufp = regs->u_regs[UREG_I6] + STACK_BIAS;
do {
@@ -1355,17 +1388,16 @@ static void perf_callchain_user_64(struct pt_regs *regs,
pc = sf.callers_pc;
ufp = (unsigned long)sf.fp + STACK_BIAS;
- callchain_store(entry, pc);
+ perf_callchain_store(entry, pc);
} while (entry->nr < PERF_MAX_STACK_DEPTH);
}
-static void perf_callchain_user_32(struct pt_regs *regs,
- struct perf_callchain_entry *entry)
+static void perf_callchain_user_32(struct perf_callchain_entry *entry,
+ struct pt_regs *regs)
{
unsigned long ufp;
- callchain_store(entry, PERF_CONTEXT_USER);
- callchain_store(entry, regs->tpc);
+ perf_callchain_store(entry, regs->tpc);
ufp = regs->u_regs[UREG_I6] & 0xffffffffUL;
do {
@@ -1378,34 +1410,16 @@ static void perf_callchain_user_32(struct pt_regs *regs,
pc = sf.callers_pc;
ufp = (unsigned long)sf.fp;
- callchain_store(entry, pc);
+ perf_callchain_store(entry, pc);
} while (entry->nr < PERF_MAX_STACK_DEPTH);
}
-/* Like powerpc we can't get PMU interrupts within the PMU handler,
- * so no need for separate NMI and IRQ chains as on x86.
- */
-static DEFINE_PER_CPU(struct perf_callchain_entry, callchain);
-
-struct perf_callchain_entry *perf_callchain(struct pt_regs *regs)
+void
+perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
{
- struct perf_callchain_entry *entry = &__get_cpu_var(callchain);
-
- entry->nr = 0;
- if (!user_mode(regs)) {
- stack_trace_flush();
- perf_callchain_kernel(regs, entry);
- if (current->mm)
- regs = task_pt_regs(current);
- else
- regs = NULL;
- }
- if (regs) {
- flushw_user();
- if (test_thread_flag(TIF_32BIT))
- perf_callchain_user_32(regs, entry);
- else
- perf_callchain_user_64(regs, entry);
- }
- return entry;
+ flushw_user();
+ if (test_thread_flag(TIF_32BIT))
+ perf_callchain_user_32(entry, regs);
+ else
+ perf_callchain_user_64(entry, regs);
}
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index ea22cd373c64..75fad425e249 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -453,8 +453,66 @@ static int save_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
return err;
}
-static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset)
+/* The I-cache flush instruction only works in the primary ASI, which
+ * right now is the nucleus, aka. kernel space.
+ *
+ * Therefore we have to kick the instructions out using the kernel
+ * side linear mapping of the physical address backing the user
+ * instructions.
+ */
+static void flush_signal_insns(unsigned long address)
+{
+ unsigned long pstate, paddr;
+ pte_t *ptep, pte;
+ pgd_t *pgdp;
+ pud_t *pudp;
+ pmd_t *pmdp;
+
+ /* Commit all stores of the instructions we are about to flush. */
+ wmb();
+
+ /* Disable cross-call reception. In this way even a very wide
+ * munmap() on another cpu can't tear down the page table
+ * hierarchy from underneath us, since that can't complete
+ * until the IPI tlb flush returns.
+ */
+
+ __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
+ __asm__ __volatile__("wrpr %0, %1, %%pstate"
+ : : "r" (pstate), "i" (PSTATE_IE));
+
+ pgdp = pgd_offset(current->mm, address);
+ if (pgd_none(*pgdp))
+ goto out_irqs_on;
+ pudp = pud_offset(pgdp, address);
+ if (pud_none(*pudp))
+ goto out_irqs_on;
+ pmdp = pmd_offset(pudp, address);
+ if (pmd_none(*pmdp))
+ goto out_irqs_on;
+
+ ptep = pte_offset_map(pmdp, address);
+ pte = *ptep;
+ if (!pte_present(pte))
+ goto out_unmap;
+
+ paddr = (unsigned long) page_address(pte_page(pte));
+
+ __asm__ __volatile__("flush %0 + %1"
+ : /* no outputs */
+ : "r" (paddr),
+ "r" (address & (PAGE_SIZE - 1))
+ : "memory");
+
+out_unmap:
+ pte_unmap(ptep);
+out_irqs_on:
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
+
+}
+
+static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset)
{
struct signal_frame32 __user *sf;
int sigframe_size;
@@ -547,13 +605,7 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (ka->ka_restorer) {
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
} else {
- /* Flush instruction space. */
unsigned long address = ((unsigned long)&(sf->insns[0]));
- pgd_t *pgdp = pgd_offset(current->mm, address);
- pud_t *pudp = pud_offset(pgdp, address);
- pmd_t *pmdp = pmd_offset(pudp, address);
- pte_t *ptep;
- pte_t pte;
regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
@@ -562,34 +614,22 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (err)
goto sigsegv;
- preempt_disable();
- ptep = pte_offset_map(pmdp, address);
- pte = *ptep;
- if (pte_present(pte)) {
- unsigned long page = (unsigned long)
- page_address(pte_page(pte));
-
- wmb();
- __asm__ __volatile__("flush %0 + %1"
- : /* no outputs */
- : "r" (page),
- "r" (address & (PAGE_SIZE - 1))
- : "memory");
- }
- pte_unmap(ptep);
- preempt_enable();
+ flush_signal_insns(address);
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
- unsigned long signr, sigset_t *oldset,
- siginfo_t *info)
+static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+ unsigned long signr, sigset_t *oldset,
+ siginfo_t *info)
{
struct rt_signal_frame32 __user *sf;
int sigframe_size;
@@ -687,12 +727,7 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (ka->ka_restorer)
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
else {
- /* Flush instruction space. */
unsigned long address = ((unsigned long)&(sf->insns[0]));
- pgd_t *pgdp = pgd_offset(current->mm, address);
- pud_t *pudp = pud_offset(pgdp, address);
- pmd_t *pmdp = pmd_offset(pudp, address);
- pte_t *ptep;
regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
@@ -704,38 +739,32 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (err)
goto sigsegv;
- preempt_disable();
- ptep = pte_offset_map(pmdp, address);
- if (pte_present(*ptep)) {
- unsigned long page = (unsigned long)
- page_address(pte_page(*ptep));
-
- wmb();
- __asm__ __volatile__("flush %0 + %1"
- : /* no outputs */
- : "r" (page),
- "r" (address & (PAGE_SIZE - 1))
- : "memory");
- }
- pte_unmap(ptep);
- preempt_enable();
+ flush_signal_insns(address);
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signr, current);
+ return -EFAULT;
}
-static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
- siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka,
+ siginfo_t *info,
+ sigset_t *oldset, struct pt_regs *regs)
{
+ int err;
+
if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame32(ka, regs, signr, oldset, info);
+ err = setup_rt_frame32(ka, regs, signr, oldset, info);
else
- setup_frame32(ka, regs, signr, oldset);
+ err = setup_frame32(ka, regs, signr, oldset);
+
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -743,6 +772,10 @@ static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
sigaddset(&current->blocked,signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs,
@@ -789,16 +822,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
if (signr > 0) {
if (restart_syscall)
syscall_restart32(orig_i0, regs, &ka.sa);
- handle_signal32(signr, &ka, &info, oldset, regs);
-
- /* A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal32(signr, &ka, &info, oldset, regs) == 0) {
+ /* A signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TS_RESTORE_SIGMASK flag.
+ */
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+ }
return;
}
if (restart_syscall &&
@@ -809,12 +840,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
regs->u_regs[UREG_I0] = orig_i0;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 9882df92ba0a..5e5c5fd03783 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -315,8 +315,8 @@ save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
return err;
}
-static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset)
+static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset)
{
struct signal_frame __user *sf;
int sigframe_size, err;
@@ -384,16 +384,19 @@ static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
/* Flush instruction space. */
flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
}
- return;
+ return 0;
sigill_and_return:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset, siginfo_t *info)
+static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset, siginfo_t *info)
{
struct rt_signal_frame __user *sf;
int sigframe_size;
@@ -466,22 +469,30 @@ static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
/* Flush instruction space. */
flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static inline void
+static inline int
handle_signal(unsigned long signr, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
{
+ int err;
+
if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame(ka, regs, signr, oldset, info);
+ err = setup_rt_frame(ka, regs, signr, oldset, info);
else
- setup_frame(ka, regs, signr, oldset);
+ err = setup_frame(ka, regs, signr, oldset);
+
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -489,6 +500,10 @@ handle_signal(unsigned long signr, struct k_sigaction *ka,
sigaddset(&current->blocked, signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -546,17 +561,15 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
if (signr > 0) {
if (restart_syscall)
syscall_restart(orig_i0, regs, &ka.sa);
- handle_signal(signr, &ka, &info, oldset, regs);
-
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+ /* a signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TIF_RESTORE_SIGMASK flag.
+ */
+ if (test_thread_flag(TIF_RESTORE_SIGMASK))
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+ }
return;
}
if (restart_syscall &&
@@ -567,12 +580,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
regs->u_regs[UREG_I0] = orig_i0;
regs->pc -= 4;
regs->npc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->pc -= 4;
regs->npc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* if there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 9fa48c30037e..006fe4515886 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -409,7 +409,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *
return (void __user *) sp;
}
-static inline void
+static inline int
setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
int signo, sigset_t *oldset, siginfo_t *info)
{
@@ -483,26 +483,37 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
}
/* 4. return to kernel instructions */
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static inline void handle_signal(unsigned long signr, struct k_sigaction *ka,
- siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal(unsigned long signr, struct k_sigaction *ka,
+ siginfo_t *info,
+ sigset_t *oldset, struct pt_regs *regs)
{
- setup_rt_frame(ka, regs, signr, oldset,
- (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+ int err;
+
+ err = setup_rt_frame(ka, regs, signr, oldset,
+ (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
if (!(ka->sa.sa_flags & SA_NOMASK))
sigaddset(&current->blocked,signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -571,16 +582,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
if (signr > 0) {
if (restart_syscall)
syscall_restart(orig_i0, regs, &ka.sa);
- handle_signal(signr, &ka, &info, oldset, regs);
-
- /* A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+ /* A signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TS_RESTORE_SIGMASK flag.
+ */
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+ }
return;
}
if (restart_syscall &&
@@ -591,12 +600,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
regs->u_regs[UREG_I0] = orig_i0;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index f0434513df15..4c2572773b55 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -785,8 +785,7 @@ static int find_node(unsigned long addr)
return -1;
}
-static unsigned long long nid_range(unsigned long long start,
- unsigned long long end, int *nid)
+u64 memblock_nid_range(u64 start, u64 end, int *nid)
{
*nid = find_node(start);
start += PAGE_SIZE;
@@ -804,8 +803,7 @@ static unsigned long long nid_range(unsigned long long start,
return start;
}
#else
-static unsigned long long nid_range(unsigned long long start,
- unsigned long long end, int *nid)
+u64 memblock_nid_range(u64 start, u64 end, int *nid)
{
*nid = 0;
return end;
@@ -822,8 +820,7 @@ static void __init allocate_node_data(int nid)
struct pglist_data *p;
#ifdef CONFIG_NEED_MULTIPLE_NODES
- paddr = memblock_alloc_nid(sizeof(struct pglist_data),
- SMP_CACHE_BYTES, nid, nid_range);
+ paddr = memblock_alloc_try_nid(sizeof(struct pglist_data), SMP_CACHE_BYTES, nid);
if (!paddr) {
prom_printf("Cannot allocate pglist_data for nid[%d]\n", nid);
prom_halt();
@@ -843,8 +840,7 @@ static void __init allocate_node_data(int nid)
if (p->node_spanned_pages) {
num_pages = bootmem_bootmap_pages(p->node_spanned_pages);
- paddr = memblock_alloc_nid(num_pages << PAGE_SHIFT, PAGE_SIZE, nid,
- nid_range);
+ paddr = memblock_alloc_try_nid(num_pages << PAGE_SHIFT, PAGE_SIZE, nid);
if (!paddr) {
prom_printf("Cannot allocate bootmap for nid[%d]\n",
nid);
@@ -972,19 +968,19 @@ int of_node_to_nid(struct device_node *dp)
static void __init add_node_ranges(void)
{
- int i;
+ struct memblock_region *reg;
- for (i = 0; i < memblock.memory.cnt; i++) {
- unsigned long size = memblock_size_bytes(&memblock.memory, i);
+ for_each_memblock(memory, reg) {
+ unsigned long size = reg->size;
unsigned long start, end;
- start = memblock.memory.region[i].base;
+ start = reg->base;
end = start + size;
while (start < end) {
unsigned long this_end;
int nid;
- this_end = nid_range(start, end, &nid);
+ this_end = memblock_nid_range(start, end, &nid);
numadbg("Adding active range nid[%d] "
"start[%lx] end[%lx]\n",
@@ -1281,7 +1277,7 @@ static void __init bootmem_init_nonnuma(void)
{
unsigned long top_of_ram = memblock_end_of_DRAM();
unsigned long total_ram = memblock_phys_mem_size();
- unsigned int i;
+ struct memblock_region *reg;
numadbg("bootmem_init_nonnuma()\n");
@@ -1292,15 +1288,14 @@ static void __init bootmem_init_nonnuma(void)
init_node_masks_nonnuma();
- for (i = 0; i < memblock.memory.cnt; i++) {
- unsigned long size = memblock_size_bytes(&memblock.memory, i);
+ for_each_memblock(memory, reg) {
unsigned long start_pfn, end_pfn;
- if (!size)
+ if (!reg->size)
continue;
- start_pfn = memblock.memory.region[i].base >> PAGE_SHIFT;
- end_pfn = start_pfn + memblock_size_pages(&memblock.memory, i);
+ start_pfn = memblock_region_memory_base_pfn(reg);
+ end_pfn = memblock_region_memory_end_pfn(reg);
add_active_range(0, start_pfn, end_pfn);
}
@@ -1318,7 +1313,7 @@ static void __init reserve_range_in_node(int nid, unsigned long start,
unsigned long this_end;
int n;
- this_end = nid_range(start, end, &n);
+ this_end = memblock_nid_range(start, end, &n);
if (n == nid) {
numadbg(" MATCH reserving range [%lx:%lx]\n",
start, this_end);
@@ -1334,17 +1329,12 @@ static void __init reserve_range_in_node(int nid, unsigned long start,
static void __init trim_reserved_in_node(int nid)
{
- int i;
+ struct memblock_region *reg;
numadbg(" trim_reserved_in_node(%d)\n", nid);
- for (i = 0; i < memblock.reserved.cnt; i++) {
- unsigned long start = memblock.reserved.region[i].base;
- unsigned long size = memblock_size_bytes(&memblock.reserved, i);
- unsigned long end = start + size;
-
- reserve_range_in_node(nid, start, end);
- }
+ for_each_memblock(reserved, reg)
+ reserve_range_in_node(nid, reg->base, reg->base + reg->size);
}
static void __init bootmem_init_one_node(int nid)
diff --git a/arch/sparc/prom/p1275.c b/arch/sparc/prom/p1275.c
index fa6e4e219b9c..d9850c2b9bf2 100644
--- a/arch/sparc/prom/p1275.c
+++ b/arch/sparc/prom/p1275.c
@@ -39,7 +39,7 @@ void p1275_cmd_direct(unsigned long *args)
unsigned long flags;
raw_local_save_flags(flags);
- raw_local_irq_restore(PIL_NMI);
+ raw_local_irq_restore((unsigned long)PIL_NMI);
raw_spin_lock(&prom_entry_lock);
prom_world(1);