diff options
Diffstat (limited to 'include/linux/suspend.h')
| -rw-r--r-- | include/linux/suspend.h | 125 |
1 files changed, 62 insertions, 63 deletions
diff --git a/include/linux/suspend.h b/include/linux/suspend.h index cfe19a028918..b02876f1ae38 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -40,62 +40,6 @@ typedef int __bitwise suspend_state_t; #define PM_SUSPEND_MIN PM_SUSPEND_TO_IDLE #define PM_SUSPEND_MAX ((__force suspend_state_t) 4) -enum suspend_stat_step { - SUSPEND_FREEZE = 1, - SUSPEND_PREPARE, - SUSPEND_SUSPEND, - SUSPEND_SUSPEND_LATE, - SUSPEND_SUSPEND_NOIRQ, - SUSPEND_RESUME_NOIRQ, - SUSPEND_RESUME_EARLY, - SUSPEND_RESUME -}; - -struct suspend_stats { - int success; - int fail; - int failed_freeze; - int failed_prepare; - int failed_suspend; - int failed_suspend_late; - int failed_suspend_noirq; - int failed_resume; - int failed_resume_early; - int failed_resume_noirq; -#define REC_FAILED_NUM 2 - int last_failed_dev; - char failed_devs[REC_FAILED_NUM][40]; - int last_failed_errno; - int errno[REC_FAILED_NUM]; - int last_failed_step; - enum suspend_stat_step failed_steps[REC_FAILED_NUM]; -}; - -extern struct suspend_stats suspend_stats; - -static inline void dpm_save_failed_dev(const char *name) -{ - strscpy(suspend_stats.failed_devs[suspend_stats.last_failed_dev], - name, - sizeof(suspend_stats.failed_devs[0])); - suspend_stats.last_failed_dev++; - suspend_stats.last_failed_dev %= REC_FAILED_NUM; -} - -static inline void dpm_save_failed_errno(int err) -{ - suspend_stats.errno[suspend_stats.last_failed_errno] = err; - suspend_stats.last_failed_errno++; - suspend_stats.last_failed_errno %= REC_FAILED_NUM; -} - -static inline void dpm_save_failed_step(enum suspend_stat_step step) -{ - suspend_stats.failed_steps[suspend_stats.last_failed_step] = step; - suspend_stats.last_failed_step++; - suspend_stats.last_failed_step %= REC_FAILED_NUM; -} - /** * struct platform_suspend_ops - Callbacks for managing platform dependent * system sleep states. @@ -199,6 +143,7 @@ struct platform_s2idle_ops { }; #ifdef CONFIG_SUSPEND +extern suspend_state_t pm_suspend_target_state; extern suspend_state_t mem_sleep_current; extern suspend_state_t mem_sleep_default; @@ -334,6 +279,8 @@ extern bool sync_on_suspend_enabled; #else /* !CONFIG_SUSPEND */ #define suspend_valid_only_mem NULL +#define pm_suspend_target_state (PM_SUSPEND_ON) + static inline void pm_suspend_clear_flags(void) {} static inline void pm_set_suspend_via_firmware(void) {} static inline void pm_set_resume_via_firmware(void) {} @@ -351,6 +298,11 @@ static inline void s2idle_set_ops(const struct platform_s2idle_ops *ops) {} static inline void s2idle_wake(void) {} #endif /* !CONFIG_SUSPEND */ +static inline bool pm_suspend_in_progress(void) +{ + return pm_suspend_target_state != PM_SUSPEND_ON; +} + /* struct pbe is used for creating lists of pages that should be restored * atomically during the resume from disk, because the page frames they have * occupied before the suspend are in use. @@ -361,9 +313,6 @@ struct pbe { struct pbe *next; }; -/* mm/page_alloc.c */ -extern void mark_free_pages(struct zone *zone); - /** * struct platform_hibernation_ops - hibernation platform support * @@ -449,6 +398,10 @@ extern struct pbe *restore_pblist; int pfn_is_nosave(unsigned long pfn); int hibernate_quiet_exec(int (*func)(void *data), void *data); +int hibernate_resume_nonboot_cpu_disable(void); +int arch_hibernation_header_save(void *addr, unsigned int max_size); +int arch_hibernation_header_restore(void *addr); + #else /* CONFIG_HIBERNATION */ static inline void register_nosave_region(unsigned long b, unsigned long e) {} static inline int swsusp_page_is_forbidden(struct page *p) { return 0; } @@ -465,6 +418,14 @@ static inline int hibernate_quiet_exec(int (*func)(void *data), void *data) { } #endif /* CONFIG_HIBERNATION */ +#if defined(CONFIG_HIBERNATION) && defined(CONFIG_SUSPEND) +bool pm_hibernation_mode_is_suspend(void); +#else +static inline bool pm_hibernation_mode_is_suspend(void) { return false; } +#endif + +int arch_resume_nosmt(void); + #ifdef CONFIG_HIBERNATION_SNAPSHOT_DEV int is_hibernate_resume_dev(dev_t dev); #else @@ -489,6 +450,10 @@ void restore_processor_state(void); extern int register_pm_notifier(struct notifier_block *nb); extern int unregister_pm_notifier(struct notifier_block *nb); extern void ksys_sync_helper(void); +extern void pm_report_hw_sleep_time(u64 t); +extern void pm_report_max_hw_sleep(u64 t); +void pm_restrict_gfp_mask(void); +void pm_restore_gfp_mask(void); #define pm_notifier(fn, pri) { \ static struct notifier_block fn##_nb = \ @@ -498,7 +463,11 @@ extern void ksys_sync_helper(void); /* drivers/base/power/wakeup.c */ extern bool events_check_enabled; -extern suspend_state_t pm_suspend_target_state; + +static inline bool pm_suspended_storage(void) +{ + return !gfp_has_io_fs(gfp_allowed_mask); +} extern bool pm_wakeup_pending(void); extern void pm_system_wakeup(void); @@ -514,6 +483,9 @@ extern void pm_print_active_wakeup_sources(void); extern unsigned int lock_system_sleep(void); extern void unlock_system_sleep(unsigned int); +extern bool pm_sleep_transition_in_progress(void); +bool pm_hibernate_is_recovering(void); + #else /* !CONFIG_PM_SLEEP */ static inline int register_pm_notifier(struct notifier_block *nb) @@ -526,10 +498,17 @@ static inline int unregister_pm_notifier(struct notifier_block *nb) return 0; } +static inline void pm_report_hw_sleep_time(u64 t) {}; +static inline void pm_report_max_hw_sleep(u64 t) {}; + +static inline void pm_restrict_gfp_mask(void) {} +static inline void pm_restore_gfp_mask(void) {} + static inline void ksys_sync_helper(void) {} #define pm_notifier(fn, pri) do { (void)(fn); } while (0) +static inline bool pm_suspended_storage(void) { return false; } static inline bool pm_wakeup_pending(void) { return false; } static inline void pm_system_wakeup(void) {} static inline void pm_wakeup_clear(bool reset) {} @@ -538,11 +517,15 @@ static inline void pm_system_irq_wakeup(unsigned int irq_number) {} static inline unsigned int lock_system_sleep(void) { return 0; } static inline void unlock_system_sleep(unsigned int flags) {} +static inline bool pm_sleep_transition_in_progress(void) { return false; } +static inline bool pm_hibernate_is_recovering(void) { return false; } + #endif /* !CONFIG_PM_SLEEP */ #ifdef CONFIG_PM_SLEEP_DEBUG extern bool pm_print_times_enabled; extern bool pm_debug_messages_on; +extern bool pm_debug_messages_should_print(void); static inline int pm_dyn_debug_messages_on(void) { #ifdef CONFIG_DYNAMIC_DEBUG @@ -556,14 +539,14 @@ static inline int pm_dyn_debug_messages_on(void) #endif #define __pm_pr_dbg(fmt, ...) \ do { \ - if (pm_debug_messages_on) \ + if (pm_debug_messages_should_print()) \ printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ else if (pm_dyn_debug_messages_on()) \ pr_debug(fmt, ##__VA_ARGS__); \ } while (0) #define __pm_deferred_pr_dbg(fmt, ...) \ do { \ - if (pm_debug_messages_on) \ + if (pm_debug_messages_should_print()) \ printk_deferred(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ } while (0) #else @@ -581,7 +564,8 @@ static inline int pm_dyn_debug_messages_on(void) /** * pm_pr_dbg - print pm sleep debug messages * - * If pm_debug_messages_on is enabled, print message. + * If pm_debug_messages_on is enabled and the system is entering/leaving + * suspend, print message. * If pm_debug_messages_on is disabled and CONFIG_DYNAMIC_DEBUG is enabled, * print message only from instances explicitly enabled on dynamic debug's * control. @@ -605,4 +589,19 @@ static inline void queue_up_suspend_work(void) {} #endif /* !CONFIG_PM_AUTOSLEEP */ +enum suspend_stat_step { + SUSPEND_WORKING = 0, + SUSPEND_FREEZE, + SUSPEND_PREPARE, + SUSPEND_SUSPEND, + SUSPEND_SUSPEND_LATE, + SUSPEND_SUSPEND_NOIRQ, + SUSPEND_RESUME_NOIRQ, + SUSPEND_RESUME_EARLY, + SUSPEND_RESUME +}; + +void dpm_save_failed_dev(const char *name); +void dpm_save_failed_step(enum suspend_stat_step step); + #endif /* _LINUX_SUSPEND_H */ |