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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-08 13:10:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-08 13:10:57 -0800
commiteb59c505f8a5906ad2e053d14fab50eb8574fd6f (patch)
treec6e875adc12b481b916e847e8f80b8881a0fb02c /include/linux
parent1619ed8f60959829d070d8f39cd2f8ca0e7135ce (diff)
parentc233523b3d392e530033a7587d7970dc62a02361 (diff)
Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/freezer.h159
-rw-r--r--include/linux/kmod.h2
-rw-r--r--include/linux/kthread.h1
-rw-r--r--include/linux/platform_device.h30
-rw-r--r--include/linux/pm.h15
-rw-r--r--include/linux/pm_domain.h103
-rw-r--r--include/linux/pm_qos.h8
-rw-r--r--include/linux/pm_runtime.h5
-rw-r--r--include/linux/sched.h4
-rw-r--r--include/linux/sh_intc.h1
-rw-r--r--include/linux/suspend.h35
11 files changed, 210 insertions, 153 deletions
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index a5386e3ee756..0ab54e16a91f 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -5,71 +5,58 @@
#include <linux/sched.h>
#include <linux/wait.h>
+#include <linux/atomic.h>
#ifdef CONFIG_FREEZER
+extern atomic_t system_freezing_cnt; /* nr of freezing conds in effect */
+extern bool pm_freezing; /* PM freezing in effect */
+extern bool pm_nosig_freezing; /* PM nosig freezing in effect */
+
/*
* Check if a process has been frozen
*/
-static inline int frozen(struct task_struct *p)
+static inline bool frozen(struct task_struct *p)
{
return p->flags & PF_FROZEN;
}
-/*
- * Check if there is a request to freeze a process
- */
-static inline int freezing(struct task_struct *p)
-{
- return test_tsk_thread_flag(p, TIF_FREEZE);
-}
-
-/*
- * Request that a process be frozen
- */
-static inline void set_freeze_flag(struct task_struct *p)
-{
- set_tsk_thread_flag(p, TIF_FREEZE);
-}
+extern bool freezing_slow_path(struct task_struct *p);
/*
- * Sometimes we may need to cancel the previous 'freeze' request
+ * Check if there is a request to freeze a process
*/
-static inline void clear_freeze_flag(struct task_struct *p)
-{
- clear_tsk_thread_flag(p, TIF_FREEZE);
-}
-
-static inline bool should_send_signal(struct task_struct *p)
+static inline bool freezing(struct task_struct *p)
{
- return !(p->flags & PF_FREEZER_NOSIG);
+ if (likely(!atomic_read(&system_freezing_cnt)))
+ return false;
+ return freezing_slow_path(p);
}
/* Takes and releases task alloc lock using task_lock() */
-extern int thaw_process(struct task_struct *p);
+extern void __thaw_task(struct task_struct *t);
-extern void refrigerator(void);
+extern bool __refrigerator(bool check_kthr_stop);
extern int freeze_processes(void);
extern int freeze_kernel_threads(void);
extern void thaw_processes(void);
-static inline int try_to_freeze(void)
+static inline bool try_to_freeze(void)
{
- if (freezing(current)) {
- refrigerator();
- return 1;
- } else
- return 0;
+ might_sleep();
+ if (likely(!freezing(current)))
+ return false;
+ return __refrigerator(false);
}
-extern bool freeze_task(struct task_struct *p, bool sig_only);
-extern void cancel_freezing(struct task_struct *p);
+extern bool freeze_task(struct task_struct *p);
+extern bool set_freezable(void);
#ifdef CONFIG_CGROUP_FREEZER
-extern int cgroup_freezing_or_frozen(struct task_struct *task);
+extern bool cgroup_freezing(struct task_struct *task);
#else /* !CONFIG_CGROUP_FREEZER */
-static inline int cgroup_freezing_or_frozen(struct task_struct *task)
+static inline bool cgroup_freezing(struct task_struct *task)
{
- return 0;
+ return false;
}
#endif /* !CONFIG_CGROUP_FREEZER */
@@ -80,33 +67,27 @@ static inline int cgroup_freezing_or_frozen(struct task_struct *task)
* appropriately in case the child has exited before the freezing of tasks is
* complete. However, we don't want kernel threads to be frozen in unexpected
* places, so we allow them to block freeze_processes() instead or to set
- * PF_NOFREEZE if needed and PF_FREEZER_SKIP is only set for userland vfork
- * parents. Fortunately, in the ____call_usermodehelper() case the parent won't
- * really block freeze_processes(), since ____call_usermodehelper() (the child)
- * does a little before exec/exit and it can't be frozen before waking up the
- * parent.
+ * PF_NOFREEZE if needed. Fortunately, in the ____call_usermodehelper() case the
+ * parent won't really block freeze_processes(), since ____call_usermodehelper()
+ * (the child) does a little before exec/exit and it can't be frozen before
+ * waking up the parent.
*/
-/*
- * If the current task is a user space one, tell the freezer not to count it as
- * freezable.
- */
+
+/* Tell the freezer not to count the current task as freezable. */
static inline void freezer_do_not_count(void)
{
- if (current->mm)
- current->flags |= PF_FREEZER_SKIP;
+ current->flags |= PF_FREEZER_SKIP;
}
/*
- * If the current task is a user space one, tell the freezer to count it as
- * freezable again and try to freeze it.
+ * Tell the freezer to count the current task as freezable again and try to
+ * freeze it.
*/
static inline void freezer_count(void)
{
- if (current->mm) {
- current->flags &= ~PF_FREEZER_SKIP;
- try_to_freeze();
- }
+ current->flags &= ~PF_FREEZER_SKIP;
+ try_to_freeze();
}
/*
@@ -118,21 +99,29 @@ static inline int freezer_should_skip(struct task_struct *p)
}
/*
- * Tell the freezer that the current task should be frozen by it
+ * These macros are intended to be used whenever you want allow a task that's
+ * sleeping in TASK_UNINTERRUPTIBLE or TASK_KILLABLE state to be frozen. Note
+ * that neither return any clear indication of whether a freeze event happened
+ * while in this function.
*/
-static inline void set_freezable(void)
-{
- current->flags &= ~PF_NOFREEZE;
-}
-/*
- * Tell the freezer that the current task should be frozen by it and that it
- * should send a fake signal to the task to freeze it.
- */
-static inline void set_freezable_with_signal(void)
-{
- current->flags &= ~(PF_NOFREEZE | PF_FREEZER_NOSIG);
-}
+/* Like schedule(), but should not block the freezer. */
+#define freezable_schedule() \
+({ \
+ freezer_do_not_count(); \
+ schedule(); \
+ freezer_count(); \
+})
+
+/* Like schedule_timeout_killable(), but should not block the freezer. */
+#define freezable_schedule_timeout_killable(timeout) \
+({ \
+ long __retval; \
+ freezer_do_not_count(); \
+ __retval = schedule_timeout_killable(timeout); \
+ freezer_count(); \
+ __retval; \
+})
/*
* Freezer-friendly wrappers around wait_event_interruptible(),
@@ -152,47 +141,51 @@ static inline void set_freezable_with_signal(void)
#define wait_event_freezable(wq, condition) \
({ \
int __retval; \
- do { \
+ for (;;) { \
__retval = wait_event_interruptible(wq, \
(condition) || freezing(current)); \
- if (__retval && !freezing(current)) \
+ if (__retval || (condition)) \
break; \
- else if (!(condition)) \
- __retval = -ERESTARTSYS; \
- } while (try_to_freeze()); \
+ try_to_freeze(); \
+ } \
__retval; \
})
-
#define wait_event_freezable_timeout(wq, condition, timeout) \
({ \
long __retval = timeout; \
- do { \
+ for (;;) { \
__retval = wait_event_interruptible_timeout(wq, \
(condition) || freezing(current), \
__retval); \
- } while (try_to_freeze()); \
+ if (__retval <= 0 || (condition)) \
+ break; \
+ try_to_freeze(); \
+ } \
__retval; \
})
+
#else /* !CONFIG_FREEZER */
-static inline int frozen(struct task_struct *p) { return 0; }
-static inline int freezing(struct task_struct *p) { return 0; }
-static inline void set_freeze_flag(struct task_struct *p) {}
-static inline void clear_freeze_flag(struct task_struct *p) {}
-static inline int thaw_process(struct task_struct *p) { return 1; }
+static inline bool frozen(struct task_struct *p) { return false; }
+static inline bool freezing(struct task_struct *p) { return false; }
+static inline void __thaw_task(struct task_struct *t) {}
-static inline void refrigerator(void) {}
+static inline bool __refrigerator(bool check_kthr_stop) { return false; }
static inline int freeze_processes(void) { return -ENOSYS; }
static inline int freeze_kernel_threads(void) { return -ENOSYS; }
static inline void thaw_processes(void) {}
-static inline int try_to_freeze(void) { return 0; }
+static inline bool try_to_freeze(void) { return false; }
static inline void freezer_do_not_count(void) {}
static inline void freezer_count(void) {}
static inline int freezer_should_skip(struct task_struct *p) { return 0; }
static inline void set_freezable(void) {}
-static inline void set_freezable_with_signal(void) {}
+
+#define freezable_schedule() schedule()
+
+#define freezable_schedule_timeout_killable(timeout) \
+ schedule_timeout_killable(timeout)
#define wait_event_freezable(wq, condition) \
wait_event_interruptible(wq, condition)
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
index b16f65390734..722f477c4ef7 100644
--- a/include/linux/kmod.h
+++ b/include/linux/kmod.h
@@ -117,5 +117,7 @@ extern void usermodehelper_init(void);
extern int usermodehelper_disable(void);
extern void usermodehelper_enable(void);
extern bool usermodehelper_is_disabled(void);
+extern void read_lock_usermodehelper(void);
+extern void read_unlock_usermodehelper(void);
#endif /* __LINUX_KMOD_H__ */
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 5cac19b3a266..0714b24c0e45 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -35,6 +35,7 @@ struct task_struct *kthread_create_on_node(int (*threadfn)(void *data),
void kthread_bind(struct task_struct *k, unsigned int cpu);
int kthread_stop(struct task_struct *k);
int kthread_should_stop(void);
+bool kthread_freezable_should_stop(bool *was_frozen);
void *kthread_data(struct task_struct *k);
int kthreadd(void *unused);
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 5622fa24e97b..60e9994ef405 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -256,62 +256,34 @@ static inline char *early_platform_driver_setup_func(void) \
}
#endif /* MODULE */
-#ifdef CONFIG_PM_SLEEP
-extern int platform_pm_prepare(struct device *dev);
-extern void platform_pm_complete(struct device *dev);
-#else
-#define platform_pm_prepare NULL
-#define platform_pm_complete NULL
-#endif
-
#ifdef CONFIG_SUSPEND
extern int platform_pm_suspend(struct device *dev);
-extern int platform_pm_suspend_noirq(struct device *dev);
extern int platform_pm_resume(struct device *dev);
-extern int platform_pm_resume_noirq(struct device *dev);
#else
#define platform_pm_suspend NULL
#define platform_pm_resume NULL
-#define platform_pm_suspend_noirq NULL
-#define platform_pm_resume_noirq NULL
#endif
#ifdef CONFIG_HIBERNATE_CALLBACKS
extern int platform_pm_freeze(struct device *dev);
-extern int platform_pm_freeze_noirq(struct device *dev);
extern int platform_pm_thaw(struct device *dev);
-extern int platform_pm_thaw_noirq(struct device *dev);
extern int platform_pm_poweroff(struct device *dev);
-extern int platform_pm_poweroff_noirq(struct device *dev);
extern int platform_pm_restore(struct device *dev);
-extern int platform_pm_restore_noirq(struct device *dev);
#else
#define platform_pm_freeze NULL
#define platform_pm_thaw NULL
#define platform_pm_poweroff NULL
#define platform_pm_restore NULL
-#define platform_pm_freeze_noirq NULL
-#define platform_pm_thaw_noirq NULL
-#define platform_pm_poweroff_noirq NULL
-#define platform_pm_restore_noirq NULL
#endif
#ifdef CONFIG_PM_SLEEP
#define USE_PLATFORM_PM_SLEEP_OPS \
- .prepare = platform_pm_prepare, \
- .complete = platform_pm_complete, \
.suspend = platform_pm_suspend, \
.resume = platform_pm_resume, \
.freeze = platform_pm_freeze, \
.thaw = platform_pm_thaw, \
.poweroff = platform_pm_poweroff, \
- .restore = platform_pm_restore, \
- .suspend_noirq = platform_pm_suspend_noirq, \
- .resume_noirq = platform_pm_resume_noirq, \
- .freeze_noirq = platform_pm_freeze_noirq, \
- .thaw_noirq = platform_pm_thaw_noirq, \
- .poweroff_noirq = platform_pm_poweroff_noirq, \
- .restore_noirq = platform_pm_restore_noirq,
+ .restore = platform_pm_restore,
#else
#define USE_PLATFORM_PM_SLEEP_OPS
#endif
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 3f3ed83a9aa5..e4982ac3fbbc 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -300,19 +300,6 @@ const struct dev_pm_ops name = { \
SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
}
-/*
- * Use this for subsystems (bus types, device types, device classes) that don't
- * need any special suspend/resume handling in addition to invoking the PM
- * callbacks provided by device drivers supporting both the system sleep PM and
- * runtime PM, make the pm member point to generic_subsys_pm_ops.
- */
-#ifdef CONFIG_PM
-extern struct dev_pm_ops generic_subsys_pm_ops;
-#define GENERIC_SUBSYS_PM_OPS (&generic_subsys_pm_ops)
-#else
-#define GENERIC_SUBSYS_PM_OPS NULL
-#endif
-
/**
* PM_EVENT_ messages
*
@@ -521,6 +508,8 @@ struct dev_pm_info {
unsigned long active_jiffies;
unsigned long suspended_jiffies;
unsigned long accounting_timestamp;
+ ktime_t suspend_time;
+ s64 max_time_suspended_ns;
#endif
struct pm_subsys_data *subsys_data; /* Owned by the subsystem. */
struct pm_qos_constraints *constraints;
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 65633e5a2bc0..a03a0ad998b8 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -10,6 +10,7 @@
#define _LINUX_PM_DOMAIN_H
#include <linux/device.h>
+#include <linux/err.h>
enum gpd_status {
GPD_STATE_ACTIVE = 0, /* PM domain is active */
@@ -21,6 +22,23 @@ enum gpd_status {
struct dev_power_governor {
bool (*power_down_ok)(struct dev_pm_domain *domain);
+ bool (*stop_ok)(struct device *dev);
+};
+
+struct gpd_dev_ops {
+ int (*start)(struct device *dev);
+ 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);
};
struct generic_pm_domain {
@@ -32,6 +50,7 @@ struct generic_pm_domain {
struct mutex lock;
struct dev_power_governor *gov;
struct work_struct power_off_work;
+ char *name;
unsigned int in_progress; /* Number of devices being suspended now */
atomic_t sd_count; /* Number of subdomains with power "on" */
enum gpd_status status; /* Current state of the domain */
@@ -44,10 +63,13 @@ struct generic_pm_domain {
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);
- int (*start_device)(struct device *dev);
- int (*stop_device)(struct device *dev);
- bool (*active_wakeup)(struct device *dev);
+ s64 power_on_latency_ns;
+ struct gpd_dev_ops dev_ops;
+ s64 break_even_ns; /* Power break even for the entire domain. */
+ s64 max_off_time_ns; /* Maximum allowed "suspended" time. */
+ ktime_t power_off_time;
};
static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)
@@ -62,8 +84,18 @@ struct gpd_link {
struct list_head slave_node;
};
+struct gpd_timing_data {
+ s64 stop_latency_ns;
+ s64 start_latency_ns;
+ s64 save_state_latency_ns;
+ s64 restore_state_latency_ns;
+ s64 break_even_ns;
+};
+
struct generic_pm_domain_data {
struct pm_domain_data base;
+ struct gpd_dev_ops ops;
+ struct gpd_timing_data td;
bool need_restore;
};
@@ -73,18 +105,54 @@ static inline struct generic_pm_domain_data *to_gpd_data(struct pm_domain_data *
}
#ifdef CONFIG_PM_GENERIC_DOMAINS
-extern int pm_genpd_add_device(struct generic_pm_domain *genpd,
- struct device *dev);
+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,
+ struct gpd_timing_data *td);
+
+static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
+ struct device *dev)
+{
+ return __pm_genpd_add_device(genpd, dev, NULL);
+}
+
extern int pm_genpd_remove_device(struct generic_pm_domain *genpd,
struct device *dev);
extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *new_subdomain);
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 void pm_genpd_init(struct generic_pm_domain *genpd,
struct dev_power_governor *gov, bool is_off);
+
extern int pm_genpd_poweron(struct generic_pm_domain *genpd);
+
+extern bool default_stop_ok(struct device *dev);
+
+extern struct dev_power_governor pm_domain_always_on_gov;
#else
+
+static inline struct generic_pm_domain *dev_to_genpd(struct device *dev)
+{
+ return ERR_PTR(-ENOSYS);
+}
+static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd,
+ struct device *dev,
+ struct gpd_timing_data *td)
+{
+ return -ENOSYS;
+}
static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
struct device *dev)
{
@@ -105,14 +173,35 @@ static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
-static inline void pm_genpd_init(struct generic_pm_domain *genpd,
- struct dev_power_governor *gov, bool is_off) {}
+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 void pm_genpd_init(struct generic_pm_domain *genpd, bool is_off)
+{
+}
static inline int pm_genpd_poweron(struct generic_pm_domain *genpd)
{
return -ENOSYS;
}
+static inline bool default_stop_ok(struct device *dev)
+{
+ return false;
+}
+#define pm_domain_always_on_gov NULL
#endif
+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);
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 83b0ea302a80..e5bbcbaa6f57 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -78,6 +78,7 @@ int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
int pm_qos_request_active(struct pm_qos_request *req);
s32 pm_qos_read_value(struct pm_qos_constraints *c);
+s32 __dev_pm_qos_read_value(struct device *dev);
s32 dev_pm_qos_read_value(struct device *dev);
int dev_pm_qos_add_request(struct device *dev, struct dev_pm_qos_request *req,
s32 value);
@@ -91,6 +92,8 @@ int dev_pm_qos_add_global_notifier(struct notifier_block *notifier);
int dev_pm_qos_remove_global_notifier(struct notifier_block *notifier);
void dev_pm_qos_constraints_init(struct device *dev);
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, s32 value);
#else
static inline int pm_qos_update_target(struct pm_qos_constraints *c,
struct plist_node *node,
@@ -119,6 +122,8 @@ static inline int pm_qos_request_active(struct pm_qos_request *req)
static inline s32 pm_qos_read_value(struct pm_qos_constraints *c)
{ return 0; }
+static inline s32 __dev_pm_qos_read_value(struct device *dev)
+ { return 0; }
static inline s32 dev_pm_qos_read_value(struct device *dev)
{ return 0; }
static inline int dev_pm_qos_add_request(struct device *dev,
@@ -150,6 +155,9 @@ static inline void dev_pm_qos_constraints_destroy(struct device *dev)
{
dev->power.power_state = PMSG_INVALID;
}
+static inline int dev_pm_qos_add_ancestor_request(struct device *dev,
+ struct dev_pm_qos_request *req, s32 value)
+ { return 0; }
#endif
#endif
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index d3085e72a0ee..609daae7a014 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -45,6 +45,8 @@ extern void pm_runtime_irq_safe(struct device *dev);
extern void __pm_runtime_use_autosuspend(struct device *dev, bool use);
extern void pm_runtime_set_autosuspend_delay(struct device *dev, int delay);
extern unsigned long pm_runtime_autosuspend_expiration(struct device *dev);
+extern void pm_runtime_update_max_time_suspended(struct device *dev,
+ s64 delta_ns);
static inline bool pm_children_suspended(struct device *dev)
{
@@ -148,6 +150,9 @@ static inline void pm_runtime_set_autosuspend_delay(struct device *dev,
static inline unsigned long pm_runtime_autosuspend_expiration(
struct device *dev) { return 0; }
+static inline void pm_runtime_update_max_time_suspended(struct device *dev,
+ s64 delta_ns) {}
+
#endif /* !CONFIG_PM_RUNTIME */
static inline int pm_runtime_idle(struct device *dev)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index cf0eb342bcba..ad93e1ec8c65 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -220,7 +220,7 @@ extern char ___assert_task_state[1 - 2*!!(
((task->state & (__TASK_STOPPED | __TASK_TRACED)) != 0)
#define task_contributes_to_load(task) \
((task->state & TASK_UNINTERRUPTIBLE) != 0 && \
- (task->flags & PF_FREEZING) == 0)
+ (task->flags & PF_FROZEN) == 0)
#define __set_task_state(tsk, state_value) \
do { (tsk)->state = (state_value); } while (0)
@@ -1787,7 +1787,6 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
#define PF_MEMALLOC 0x00000800 /* Allocating memory */
#define PF_NPROC_EXCEEDED 0x00001000 /* set_user noticed that RLIMIT_NPROC was exceeded */
#define PF_USED_MATH 0x00002000 /* if unset the fpu must be initialized before use */
-#define PF_FREEZING 0x00004000 /* freeze in progress. do not account to load */
#define PF_NOFREEZE 0x00008000 /* this thread should not be frozen */
#define PF_FROZEN 0x00010000 /* frozen for system suspend */
#define PF_FSTRANS 0x00020000 /* inside a filesystem transaction */
@@ -1803,7 +1802,6 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
#define PF_MEMPOLICY 0x10000000 /* Non-default NUMA mempolicy */
#define PF_MUTEX_TESTER 0x20000000 /* Thread belongs to the rt mutex tester */
#define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezable */
-#define PF_FREEZER_NOSIG 0x80000000 /* Freezer won't send signals to it */
/*
* Only the _current_ task can read/write to tsk->flags, but other
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h
index 5812fefbcedf..b160645f5599 100644
--- a/include/linux/sh_intc.h
+++ b/include/linux/sh_intc.h
@@ -95,6 +95,7 @@ struct intc_desc {
unsigned int num_resources;
intc_enum force_enable;
intc_enum force_disable;
+ bool skip_syscore_suspend;
struct intc_hw_desc hw;
};
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 57a692432f8a..95040cc33107 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -6,6 +6,7 @@
#include <linux/init.h>
#include <linux/pm.h>
#include <linux/mm.h>
+#include <linux/freezer.h>
#include <asm/errno.h>
#ifdef CONFIG_VT
@@ -331,6 +332,8 @@ static inline bool system_entering_hibernation(void) { return false; }
#define PM_RESTORE_PREPARE 0x0005 /* Going to restore a saved image */
#define PM_POST_RESTORE 0x0006 /* Restore failed */
+extern struct mutex pm_mutex;
+
#ifdef CONFIG_PM_SLEEP
void save_processor_state(void);
void restore_processor_state(void);
@@ -351,6 +354,19 @@ extern bool events_check_enabled;
extern bool pm_wakeup_pending(void);
extern bool pm_get_wakeup_count(unsigned int *count);
extern bool pm_save_wakeup_count(unsigned int count);
+
+static inline void lock_system_sleep(void)
+{
+ freezer_do_not_count();
+ mutex_lock(&pm_mutex);
+}
+
+static inline void unlock_system_sleep(void)
+{
+ mutex_unlock(&pm_mutex);
+ freezer_count();
+}
+
#else /* !CONFIG_PM_SLEEP */
static inline int register_pm_notifier(struct notifier_block *nb)
@@ -366,28 +382,11 @@ 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; }
-#endif /* !CONFIG_PM_SLEEP */
-
-extern struct mutex pm_mutex;
-#ifndef CONFIG_HIBERNATE_CALLBACKS
static inline void lock_system_sleep(void) {}
static inline void unlock_system_sleep(void) {}
-#else
-
-/* Let some subsystems like memory hotadd exclude hibernation */
-
-static inline void lock_system_sleep(void)
-{
- mutex_lock(&pm_mutex);
-}
-
-static inline void unlock_system_sleep(void)
-{
- mutex_unlock(&pm_mutex);
-}
-#endif
+#endif /* !CONFIG_PM_SLEEP */
#ifdef CONFIG_ARCH_SAVE_PAGE_KEYS
/*