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-rw-r--r--drivers/base/Kconfig9
-rw-r--r--drivers/base/arch_topology.c36
-rw-r--r--drivers/base/core.c5
-rw-r--r--drivers/base/dd.c5
-rw-r--r--drivers/base/firmware_loader/Kconfig1
-rw-r--r--drivers/base/firmware_loader/builtin/.gitignore1
-rw-r--r--drivers/base/firmware_loader/fallback.c6
-rw-r--r--drivers/base/node.c352
-rw-r--r--drivers/base/platform.c12
-rw-r--r--drivers/base/power/clock_ops.c3
-rw-r--r--drivers/base/power/common.c4
-rw-r--r--drivers/base/power/domain.c4
-rw-r--r--drivers/base/power/domain_governor.c4
-rw-r--r--drivers/base/power/generic_ops.c4
-rw-r--r--drivers/base/power/main.c4
-rw-r--r--drivers/base/power/qos.c6
-rw-r--r--drivers/base/power/runtime.c4
-rw-r--r--drivers/base/power/sysfs.c6
-rw-r--r--drivers/base/power/trace.c2
-rw-r--r--drivers/base/power/wakeirq.c15
-rw-r--r--drivers/base/power/wakeup.c4
-rw-r--r--drivers/base/test/Makefile1
22 files changed, 394 insertions, 94 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 03f067da12ee..dc404492381d 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -3,7 +3,6 @@ menu "Generic Driver Options"
config UEVENT_HELPER
bool "Support for uevent helper"
- default y
help
The uevent helper program is forked by the kernel for
every uevent.
@@ -149,6 +148,14 @@ config DEBUG_TEST_DRIVER_REMOVE
unusable. You should say N here unless you are explicitly looking to
test this functionality.
+config HMEM_REPORTING
+ bool
+ default n
+ depends on NUMA
+ help
+ Enable reporting for heterogenous memory access attributes under
+ their non-uniform memory nodes.
+
source "drivers/base/test/Kconfig"
config SYS_HYPERVISOR
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index edfcf8d982e4..1739d7e1952a 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -7,7 +7,6 @@
*/
#include <linux/acpi.h>
-#include <linux/arch_topology.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/device.h>
@@ -31,7 +30,6 @@ void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
per_cpu(freq_scale, i) = scale;
}
-static DEFINE_MUTEX(cpu_scale_mutex);
DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity)
@@ -51,37 +49,7 @@ static ssize_t cpu_capacity_show(struct device *dev,
static void update_topology_flags_workfn(struct work_struct *work);
static DECLARE_WORK(update_topology_flags_work, update_topology_flags_workfn);
-static ssize_t cpu_capacity_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t count)
-{
- struct cpu *cpu = container_of(dev, struct cpu, dev);
- int this_cpu = cpu->dev.id;
- int i;
- unsigned long new_capacity;
- ssize_t ret;
-
- if (!count)
- return 0;
-
- ret = kstrtoul(buf, 0, &new_capacity);
- if (ret)
- return ret;
- if (new_capacity > SCHED_CAPACITY_SCALE)
- return -EINVAL;
-
- mutex_lock(&cpu_scale_mutex);
- for_each_cpu(i, &cpu_topology[this_cpu].core_sibling)
- topology_set_cpu_scale(i, new_capacity);
- mutex_unlock(&cpu_scale_mutex);
-
- schedule_work(&update_topology_flags_work);
-
- return count;
-}
-
-static DEVICE_ATTR_RW(cpu_capacity);
+static DEVICE_ATTR_RO(cpu_capacity);
static int register_cpu_capacity_sysctl(void)
{
@@ -141,7 +109,6 @@ void topology_normalize_cpu_scale(void)
return;
pr_debug("cpu_capacity: capacity_scale=%u\n", capacity_scale);
- mutex_lock(&cpu_scale_mutex);
for_each_possible_cpu(cpu) {
pr_debug("cpu_capacity: cpu=%d raw_capacity=%u\n",
cpu, raw_capacity[cpu]);
@@ -151,7 +118,6 @@ void topology_normalize_cpu_scale(void)
pr_debug("cpu_capacity: CPU%d cpu_capacity=%lu\n",
cpu, topology_get_cpu_scale(NULL, cpu));
}
- mutex_unlock(&cpu_scale_mutex);
}
bool __init topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu)
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 4aeaa0c92bda..fd7511e04e62 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1999,6 +1999,11 @@ static int device_private_init(struct device *dev)
* NOTE: _Never_ directly free @dev after calling this function, even
* if it returned an error! Always use put_device() to give up your
* reference instead.
+ *
+ * Rule of thumb is: if device_add() succeeds, you should call
+ * device_del() when you want to get rid of it. If device_add() has
+ * *not* succeeded, use *only* put_device() to drop the reference
+ * count.
*/
int device_add(struct device *dev)
{
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index a823f469e53f..0df9b4461766 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -490,7 +490,7 @@ re_probe:
if (dev->bus->dma_configure) {
ret = dev->bus->dma_configure(dev);
if (ret)
- goto dma_failed;
+ goto probe_failed;
}
if (driver_sysfs_add(dev)) {
@@ -546,14 +546,13 @@ re_probe:
goto done;
probe_failed:
- arch_teardown_dma_ops(dev);
-dma_failed:
if (dev->bus)
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
pinctrl_bind_failed:
device_links_no_driver(dev);
devres_release_all(dev);
+ arch_teardown_dma_ops(dev);
driver_sysfs_remove(dev);
dev->driver = NULL;
dev_set_drvdata(dev, NULL);
diff --git a/drivers/base/firmware_loader/Kconfig b/drivers/base/firmware_loader/Kconfig
index eb15d976a9ea..38f2da6f5c2b 100644
--- a/drivers/base/firmware_loader/Kconfig
+++ b/drivers/base/firmware_loader/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
menu "Firmware loader"
config FW_LOADER
diff --git a/drivers/base/firmware_loader/builtin/.gitignore b/drivers/base/firmware_loader/builtin/.gitignore
index 9c8bdb9fdcc3..166f76b43049 100644
--- a/drivers/base/firmware_loader/builtin/.gitignore
+++ b/drivers/base/firmware_loader/builtin/.gitignore
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
*.gen.S
diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c
index b5c865fe263b..f962488546b6 100644
--- a/drivers/base/firmware_loader/fallback.c
+++ b/drivers/base/firmware_loader/fallback.c
@@ -674,8 +674,8 @@ static bool fw_run_sysfs_fallback(enum fw_opt opt_flags)
*
* This function is called if direct lookup for the firmware failed, it enables
* a fallback mechanism through userspace by exposing a sysfs loading
- * interface. Userspace is in charge of loading the firmware through the syfs
- * loading interface. This syfs fallback mechanism may be disabled completely
+ * interface. Userspace is in charge of loading the firmware through the sysfs
+ * loading interface. This sysfs fallback mechanism may be disabled completely
* on a system by setting the proc sysctl value ignore_sysfs_fallback to true.
* If this false we check if the internal API caller set the @FW_OPT_NOFALLBACK
* flag, if so it would also disable the fallback mechanism. A system may want
@@ -693,7 +693,7 @@ int firmware_fallback_sysfs(struct firmware *fw, const char *name,
return ret;
if (!(opt_flags & FW_OPT_NO_WARN))
- dev_warn(device, "Falling back to syfs fallback for: %s\n",
+ dev_warn(device, "Falling back to sysfs fallback for: %s\n",
name);
else
dev_dbg(device, "Falling back to sysfs fallback for: %s\n",
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 86d6cd92ce3d..8598fcbd2a17 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -17,6 +17,7 @@
#include <linux/nodemask.h>
#include <linux/cpu.h>
#include <linux/device.h>
+#include <linux/pm_runtime.h>
#include <linux/swap.h>
#include <linux/slab.h>
@@ -59,6 +60,302 @@ static inline ssize_t node_read_cpulist(struct device *dev,
static DEVICE_ATTR(cpumap, S_IRUGO, node_read_cpumask, NULL);
static DEVICE_ATTR(cpulist, S_IRUGO, node_read_cpulist, NULL);
+/**
+ * struct node_access_nodes - Access class device to hold user visible
+ * relationships to other nodes.
+ * @dev: Device for this memory access class
+ * @list_node: List element in the node's access list
+ * @access: The access class rank
+ */
+struct node_access_nodes {
+ struct device dev;
+ struct list_head list_node;
+ unsigned access;
+#ifdef CONFIG_HMEM_REPORTING
+ struct node_hmem_attrs hmem_attrs;
+#endif
+};
+#define to_access_nodes(dev) container_of(dev, struct node_access_nodes, dev)
+
+static struct attribute *node_init_access_node_attrs[] = {
+ NULL,
+};
+
+static struct attribute *node_targ_access_node_attrs[] = {
+ NULL,
+};
+
+static const struct attribute_group initiators = {
+ .name = "initiators",
+ .attrs = node_init_access_node_attrs,
+};
+
+static const struct attribute_group targets = {
+ .name = "targets",
+ .attrs = node_targ_access_node_attrs,
+};
+
+static const struct attribute_group *node_access_node_groups[] = {
+ &initiators,
+ &targets,
+ NULL,
+};
+
+static void node_remove_accesses(struct node *node)
+{
+ struct node_access_nodes *c, *cnext;
+
+ list_for_each_entry_safe(c, cnext, &node->access_list, list_node) {
+ list_del(&c->list_node);
+ device_unregister(&c->dev);
+ }
+}
+
+static void node_access_release(struct device *dev)
+{
+ kfree(to_access_nodes(dev));
+}
+
+static struct node_access_nodes *node_init_node_access(struct node *node,
+ unsigned access)
+{
+ struct node_access_nodes *access_node;
+ struct device *dev;
+
+ list_for_each_entry(access_node, &node->access_list, list_node)
+ if (access_node->access == access)
+ return access_node;
+
+ access_node = kzalloc(sizeof(*access_node), GFP_KERNEL);
+ if (!access_node)
+ return NULL;
+
+ access_node->access = access;
+ dev = &access_node->dev;
+ dev->parent = &node->dev;
+ dev->release = node_access_release;
+ dev->groups = node_access_node_groups;
+ if (dev_set_name(dev, "access%u", access))
+ goto free;
+
+ if (device_register(dev))
+ goto free_name;
+
+ pm_runtime_no_callbacks(dev);
+ list_add_tail(&access_node->list_node, &node->access_list);
+ return access_node;
+free_name:
+ kfree_const(dev->kobj.name);
+free:
+ kfree(access_node);
+ return NULL;
+}
+
+#ifdef CONFIG_HMEM_REPORTING
+#define ACCESS_ATTR(name) \
+static ssize_t name##_show(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ return sprintf(buf, "%u\n", to_access_nodes(dev)->hmem_attrs.name); \
+} \
+static DEVICE_ATTR_RO(name);
+
+ACCESS_ATTR(read_bandwidth)
+ACCESS_ATTR(read_latency)
+ACCESS_ATTR(write_bandwidth)
+ACCESS_ATTR(write_latency)
+
+static struct attribute *access_attrs[] = {
+ &dev_attr_read_bandwidth.attr,
+ &dev_attr_read_latency.attr,
+ &dev_attr_write_bandwidth.attr,
+ &dev_attr_write_latency.attr,
+ NULL,
+};
+
+/**
+ * node_set_perf_attrs - Set the performance values for given access class
+ * @nid: Node identifier to be set
+ * @hmem_attrs: Heterogeneous memory performance attributes
+ * @access: The access class the for the given attributes
+ */
+void node_set_perf_attrs(unsigned int nid, struct node_hmem_attrs *hmem_attrs,
+ unsigned access)
+{
+ struct node_access_nodes *c;
+ struct node *node;
+ int i;
+
+ if (WARN_ON_ONCE(!node_online(nid)))
+ return;
+
+ node = node_devices[nid];
+ c = node_init_node_access(node, access);
+ if (!c)
+ return;
+
+ c->hmem_attrs = *hmem_attrs;
+ for (i = 0; access_attrs[i] != NULL; i++) {
+ if (sysfs_add_file_to_group(&c->dev.kobj, access_attrs[i],
+ "initiators")) {
+ pr_info("failed to add performance attribute to node %d\n",
+ nid);
+ break;
+ }
+ }
+}
+
+/**
+ * struct node_cache_info - Internal tracking for memory node caches
+ * @dev: Device represeting the cache level
+ * @node: List element for tracking in the node
+ * @cache_attrs:Attributes for this cache level
+ */
+struct node_cache_info {
+ struct device dev;
+ struct list_head node;
+ struct node_cache_attrs cache_attrs;
+};
+#define to_cache_info(device) container_of(device, struct node_cache_info, dev)
+
+#define CACHE_ATTR(name, fmt) \
+static ssize_t name##_show(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ return sprintf(buf, fmt "\n", to_cache_info(dev)->cache_attrs.name);\
+} \
+DEVICE_ATTR_RO(name);
+
+CACHE_ATTR(size, "%llu")
+CACHE_ATTR(line_size, "%u")
+CACHE_ATTR(indexing, "%u")
+CACHE_ATTR(write_policy, "%u")
+
+static struct attribute *cache_attrs[] = {
+ &dev_attr_indexing.attr,
+ &dev_attr_size.attr,
+ &dev_attr_line_size.attr,
+ &dev_attr_write_policy.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(cache);
+
+static void node_cache_release(struct device *dev)
+{
+ kfree(dev);
+}
+
+static void node_cacheinfo_release(struct device *dev)
+{
+ struct node_cache_info *info = to_cache_info(dev);
+ kfree(info);
+}
+
+static void node_init_cache_dev(struct node *node)
+{
+ struct device *dev;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return;
+
+ dev->parent = &node->dev;
+ dev->release = node_cache_release;
+ if (dev_set_name(dev, "memory_side_cache"))
+ goto free_dev;
+
+ if (device_register(dev))
+ goto free_name;
+
+ pm_runtime_no_callbacks(dev);
+ node->cache_dev = dev;
+ return;
+free_name:
+ kfree_const(dev->kobj.name);
+free_dev:
+ kfree(dev);
+}
+
+/**
+ * node_add_cache() - add cache attribute to a memory node
+ * @nid: Node identifier that has new cache attributes
+ * @cache_attrs: Attributes for the cache being added
+ */
+void node_add_cache(unsigned int nid, struct node_cache_attrs *cache_attrs)
+{
+ struct node_cache_info *info;
+ struct device *dev;
+ struct node *node;
+
+ if (!node_online(nid) || !node_devices[nid])
+ return;
+
+ node = node_devices[nid];
+ list_for_each_entry(info, &node->cache_attrs, node) {
+ if (info->cache_attrs.level == cache_attrs->level) {
+ dev_warn(&node->dev,
+ "attempt to add duplicate cache level:%d\n",
+ cache_attrs->level);
+ return;
+ }
+ }
+
+ if (!node->cache_dev)
+ node_init_cache_dev(node);
+ if (!node->cache_dev)
+ return;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return;
+
+ dev = &info->dev;
+ dev->parent = node->cache_dev;
+ dev->release = node_cacheinfo_release;
+ dev->groups = cache_groups;
+ if (dev_set_name(dev, "index%d", cache_attrs->level))
+ goto free_cache;
+
+ info->cache_attrs = *cache_attrs;
+ if (device_register(dev)) {
+ dev_warn(&node->dev, "failed to add cache level:%d\n",
+ cache_attrs->level);
+ goto free_name;
+ }
+ pm_runtime_no_callbacks(dev);
+ list_add_tail(&info->node, &node->cache_attrs);
+ return;
+free_name:
+ kfree_const(dev->kobj.name);
+free_cache:
+ kfree(info);
+}
+
+static void node_remove_caches(struct node *node)
+{
+ struct node_cache_info *info, *next;
+
+ if (!node->cache_dev)
+ return;
+
+ list_for_each_entry_safe(info, next, &node->cache_attrs, node) {
+ list_del(&info->node);
+ device_unregister(&info->dev);
+ }
+ device_unregister(node->cache_dev);
+}
+
+static void node_init_caches(unsigned int nid)
+{
+ INIT_LIST_HEAD(&node_devices[nid]->cache_attrs);
+}
+#else
+static void node_init_caches(unsigned int nid) { }
+static void node_remove_caches(struct node *node) { }
+#endif
+
#define K(x) ((x) << (PAGE_SHIFT - 10))
static ssize_t node_read_meminfo(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -340,7 +637,8 @@ static int register_node(struct node *node, int num)
void unregister_node(struct node *node)
{
hugetlb_unregister_node(node); /* no-op, if memoryless node */
-
+ node_remove_accesses(node);
+ node_remove_caches(node);
device_unregister(&node->dev);
}
@@ -372,6 +670,56 @@ int register_cpu_under_node(unsigned int cpu, unsigned int nid)
kobject_name(&node_devices[nid]->dev.kobj));
}
+/**
+ * register_memory_node_under_compute_node - link memory node to its compute
+ * node for a given access class.
+ * @mem_node: Memory node number
+ * @cpu_node: Cpu node number
+ * @access: Access class to register
+ *
+ * Description:
+ * For use with platforms that may have separate memory and compute nodes.
+ * This function will export node relationships linking which memory
+ * initiator nodes can access memory targets at a given ranked access
+ * class.
+ */
+int register_memory_node_under_compute_node(unsigned int mem_nid,
+ unsigned int cpu_nid,
+ unsigned access)
+{
+ struct node *init_node, *targ_node;
+ struct node_access_nodes *initiator, *target;
+ int ret;
+
+ if (!node_online(cpu_nid) || !node_online(mem_nid))
+ return -ENODEV;
+
+ init_node = node_devices[cpu_nid];
+ targ_node = node_devices[mem_nid];
+ initiator = node_init_node_access(init_node, access);
+ target = node_init_node_access(targ_node, access);
+ if (!initiator || !target)
+ return -ENOMEM;
+
+ ret = sysfs_add_link_to_group(&initiator->dev.kobj, "targets",
+ &targ_node->dev.kobj,
+ dev_name(&targ_node->dev));
+ if (ret)
+ return ret;
+
+ ret = sysfs_add_link_to_group(&target->dev.kobj, "initiators",
+ &init_node->dev.kobj,
+ dev_name(&init_node->dev));
+ if (ret)
+ goto err;
+
+ return 0;
+ err:
+ sysfs_remove_link_from_group(&initiator->dev.kobj, "targets",
+ dev_name(&targ_node->dev));
+ return ret;
+}
+
int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
{
struct device *obj;
@@ -580,8 +928,10 @@ int __register_one_node(int nid)
register_cpu_under_node(cpu, nid);
}
+ INIT_LIST_HEAD(&node_devices[nid]->access_list);
/* initialize work queue for memory hot plug */
init_node_hugetlb_work(nid);
+ node_init_caches(nid);
return error;
}
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index dab0a5abc391..4d1729853d1a 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -84,7 +84,7 @@ EXPORT_SYMBOL_GPL(platform_get_resource);
* device
*
* @pdev: platform device to use both for memory resource lookup as well as
- * resource managemend
+ * resource management
* @index: resource index
*/
#ifdef CONFIG_HAS_IOMEM
@@ -438,10 +438,12 @@ int platform_device_add(struct platform_device *pdev)
p = &ioport_resource;
}
- if (p && insert_resource(p, r)) {
- dev_err(&pdev->dev, "failed to claim resource %d: %pR\n", i, r);
- ret = -EBUSY;
- goto failed;
+ if (p) {
+ ret = insert_resource(p, r);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to claim resource %d: %pR\n", i, r);
+ goto failed;
+ }
}
}
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index 365ad751ce0f..59d19dd64928 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/clock_ops.c - Generic clock manipulation PM callbacks
*
* Copyright (c) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp.
- *
- * This file is released under the GPLv2.
*/
#include <linux/kernel.h>
diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c
index 22aedb28aad7..8db98a1f83dc 100644
--- a/drivers/base/power/common.c
+++ b/drivers/base/power/common.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/common.c - Common device power management code.
*
* Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp.
- *
- * This file is released under the GPLv2.
*/
-
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/export.h>
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 3d899e8abd58..7a6aa2318915 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/domain.c - Common code related to device power domains.
*
* Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp.
- *
- * This file is released under the GPLv2.
*/
-
#define pr_fmt(fmt) "PM: " fmt
#include <linux/delay.h>
diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c
index 7912bc957244..3838045c9277 100644
--- a/drivers/base/power/domain_governor.c
+++ b/drivers/base/power/domain_governor.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/domain_governor.c - Governors for device PM domains.
*
* Copyright (C) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp.
- *
- * This file is released under the GPLv2.
*/
-
#include <linux/kernel.h>
#include <linux/pm_domain.h>
#include <linux/pm_qos.h>
diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c
index b2ed606265a8..4fa525668cb7 100644
--- a/drivers/base/power/generic_ops.c
+++ b/drivers/base/power/generic_ops.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/generic_ops.c - Generic PM callbacks for subsystems
*
* Copyright (c) 2010 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
- *
- * This file is released under the GPLv2.
*/
-
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/export.h>
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 10528a7747bf..dcfc0a36c8f7 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/main.c - Where the driver meets power management.
*
* Copyright (c) 2003 Patrick Mochel
* Copyright (c) 2003 Open Source Development Lab
*
- * This file is released under the GPLv2
- *
- *
* The driver model core calls device_pm_add() when a device is registered.
* This will initialize the embedded device_pm_info object in the device
* and add it to the list of power-controlled devices. sysfs entries for
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index f80e402ef778..6c91f8df1d59 100644
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Devices PM QoS constraints management
*
* Copyright (C) 2011 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 version 2 as
- * published by the Free Software Foundation.
- *
- *
* This module exposes the interface to kernel space for specifying
* per-device PM QoS dependencies. It provides infrastructure for registration
* of:
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 977db40378b0..952a1e7057c7 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/runtime.c - Helper functions for device runtime PM
*
* Copyright (c) 2009 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
* Copyright (C) 2010 Alan Stern <stern@rowland.harvard.edu>
- *
- * This file is released under the GPLv2.
*/
-
#include <linux/sched/mm.h>
#include <linux/ktime.h>
#include <linux/hrtimer.h>
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index 1226e441ddfe..1b9c281cbe41 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -1,7 +1,5 @@
-/*
- * drivers/base/power/sysfs.c - sysfs entries for device PM
- */
-
+// SPDX-License-Identifier: GPL-2.0
+/* sysfs entries for device PM */
#include <linux/device.h>
#include <linux/string.h>
#include <linux/export.h>
diff --git a/drivers/base/power/trace.c b/drivers/base/power/trace.c
index 2bd9d2c744ca..977d27bd1a22 100644
--- a/drivers/base/power/trace.c
+++ b/drivers/base/power/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/trace.c
*
@@ -6,7 +7,6 @@
* Trace facility for suspend/resume problems, when none of the
* devices may be working.
*/
-
#define pr_fmt(fmt) "PM: " fmt
#include <linux/pm-trace.h>
diff --git a/drivers/base/power/wakeirq.c b/drivers/base/power/wakeirq.c
index b8fa5c0f2d13..5ce77d1ef9fc 100644
--- a/drivers/base/power/wakeirq.c
+++ b/drivers/base/power/wakeirq.c
@@ -1,16 +1,5 @@
-/*
- * wakeirq.c - Device wakeirq helper functions
- *
- * 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 "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.
- */
-
+// SPDX-License-Identifier: GPL-2.0
+/* Device wakeirq helper functions */
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 23c243a4c675..5b2b6a05a4f3 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/base/power/wakeup.c - System wakeup events framework
*
* Copyright (c) 2010 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
- *
- * This file is released under the GPLv2.
*/
-
#define pr_fmt(fmt) "PM: " fmt
#include <linux/device.h>
diff --git a/drivers/base/test/Makefile b/drivers/base/test/Makefile
index 90477c5fd9f9..0f1f7277a013 100644
--- a/drivers/base/test/Makefile
+++ b/drivers/base/test/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_TEST_ASYNC_DRIVER_PROBE) += test_async_driver_probe.o