suspend.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef _LINUX_SUSPEND_H
  3#define _LINUX_SUSPEND_H
  4
  5#include <linux/swap.h>
  6#include <linux/notifier.h>
  7#include <linux/init.h>
  8#include <linux/pm.h>
  9#include <linux/mm.h>
 10#include <linux/freezer.h>
 11#include <asm/errno.h>
 12
 13#ifdef CONFIG_VT
 14extern void pm_set_vt_switch(int);
 15#else
 16static inline void pm_set_vt_switch(int do_switch)
 17{
 18}
 19#endif
 20
 21#ifdef CONFIG_VT_CONSOLE_SLEEP
 22extern void pm_prepare_console(void);
 23extern void pm_restore_console(void);
 24#else
 25static inline void pm_prepare_console(void)
 26{
 27}
 28
 29static inline void pm_restore_console(void)
 30{
 31}
 32#endif
 33
 34typedef int __bitwise suspend_state_t;
 35
 36#define PM_SUSPEND_ON		((__force suspend_state_t) 0)
 37#define PM_SUSPEND_TO_IDLE	((__force suspend_state_t) 1)
 38#define PM_SUSPEND_STANDBY	((__force suspend_state_t) 2)
 39#define PM_SUSPEND_MEM		((__force suspend_state_t) 3)
 40#define PM_SUSPEND_MIN		PM_SUSPEND_TO_IDLE
 41#define PM_SUSPEND_MAX		((__force suspend_state_t) 4)
 42
 43/**
 44 * struct platform_suspend_ops - Callbacks for managing platform dependent
 45 *	system sleep states.
 46 *
 47 * @valid: Callback to determine if given system sleep state is supported by
 48 *	the platform.
 49 *	Valid (ie. supported) states are advertised in /sys/power/state.  Note
 50 *	that it still may be impossible to enter given system sleep state if the
 51 *	conditions aren't right.
 52 *	There is the %suspend_valid_only_mem function available that can be
 53 *	assigned to this if the platform only supports mem sleep.
 54 *
 55 * @begin: Initialise a transition to given system sleep state.
 56 *	@begin() is executed right prior to suspending devices.  The information
 57 *	conveyed to the platform code by @begin() should be disregarded by it as
 58 *	soon as @end() is executed.  If @begin() fails (ie. returns nonzero),
 59 *	@prepare(), @enter() and @finish() will not be called by the PM core.
 60 *	This callback is optional.  However, if it is implemented, the argument
 61 *	passed to @enter() is redundant and should be ignored.
 62 *
 63 * @prepare: Prepare the platform for entering the system sleep state indicated
 64 *	by @begin().
 65 *	@prepare() is called right after devices have been suspended (ie. the
 66 *	appropriate .suspend() method has been executed for each device) and
 67 *	before device drivers' late suspend callbacks are executed.  It returns
 68 *	0 on success or a negative error code otherwise, in which case the
 69 *	system cannot enter the desired sleep state (@prepare_late(), @enter(),
 70 *	and @wake() will not be called in that case).
 71 *
 72 * @prepare_late: Finish preparing the platform for entering the system sleep
 73 *	state indicated by @begin().
 74 *	@prepare_late is called before disabling nonboot CPUs and after
 75 *	device drivers' late suspend callbacks have been executed.  It returns
 76 *	0 on success or a negative error code otherwise, in which case the
 77 *	system cannot enter the desired sleep state (@enter() will not be
 78 *	executed).
 79 *
 80 * @enter: Enter the system sleep state indicated by @begin() or represented by
 81 *	the argument if @begin() is not implemented.
 82 *	This callback is mandatory.  It returns 0 on success or a negative
 83 *	error code otherwise, in which case the system cannot enter the desired
 84 *	sleep state.
 85 *
 86 * @wake: Called when the system has just left a sleep state, right after
 87 *	the nonboot CPUs have been enabled and before device drivers' early
 88 *	resume callbacks are executed.
 89 *	This callback is optional, but should be implemented by the platforms
 90 *	that implement @prepare_late().  If implemented, it is always called
 91 *	after @prepare_late and @enter(), even if one of them fails.
 92 *
 93 * @finish: Finish wake-up of the platform.
 94 *	@finish is called right prior to calling device drivers' regular suspend
 95 *	callbacks.
 96 *	This callback is optional, but should be implemented by the platforms
 97 *	that implement @prepare().  If implemented, it is always called after
 98 *	@enter() and @wake(), even if any of them fails.  It is executed after
 99 *	a failing @prepare.
100 *
101 * @suspend_again: Returns whether the system should suspend again (true) or
102 *	not (false). If the platform wants to poll sensors or execute some
103 *	code during suspended without invoking userspace and most of devices,
104 *	suspend_again callback is the place assuming that periodic-wakeup or
105 *	alarm-wakeup is already setup. This allows to execute some codes while
106 *	being kept suspended in the view of userland and devices.
107 *
108 * @end: Called by the PM core right after resuming devices, to indicate to
109 *	the platform that the system has returned to the working state or
110 *	the transition to the sleep state has been aborted.
111 *	This callback is optional, but should be implemented by the platforms
112 *	that implement @begin().  Accordingly, platforms implementing @begin()
113 *	should also provide a @end() which cleans up transitions aborted before
114 *	@enter().
115 *
116 * @recover: Recover the platform from a suspend failure.
117 *	Called by the PM core if the suspending of devices fails.
118 *	This callback is optional and should only be implemented by platforms
119 *	which require special recovery actions in that situation.
120 */
121struct platform_suspend_ops {
122	int (*valid)(suspend_state_t state);
123	int (*begin)(suspend_state_t state);
124	int (*prepare)(void);
125	int (*prepare_late)(void);
126	int (*enter)(suspend_state_t state);
127	void (*wake)(void);
128	void (*finish)(void);
129	bool (*suspend_again)(void);
130	void (*end)(void);
131	void (*recover)(void);
132};
133
134struct platform_s2idle_ops {
135	int (*begin)(void);
136	int (*prepare)(void);
137	int (*prepare_late)(void);
138	void (*check)(void);
139	bool (*wake)(void);
140	void (*restore_early)(void);
141	void (*restore)(void);
142	void (*end)(void);
143};
144
145#ifdef CONFIG_SUSPEND
146extern suspend_state_t pm_suspend_target_state;
147extern suspend_state_t mem_sleep_current;
148extern suspend_state_t mem_sleep_default;
149
150/**
151 * suspend_set_ops - set platform dependent suspend operations
152 * @ops: The new suspend operations to set.
153 */
154extern void suspend_set_ops(const struct platform_suspend_ops *ops);
155extern int suspend_valid_only_mem(suspend_state_t state);
156
157extern unsigned int pm_suspend_global_flags;
158
159#define PM_SUSPEND_FLAG_FW_SUSPEND	BIT(0)
160#define PM_SUSPEND_FLAG_FW_RESUME	BIT(1)
161#define PM_SUSPEND_FLAG_NO_PLATFORM	BIT(2)
162
163static inline void pm_suspend_clear_flags(void)
164{
165	pm_suspend_global_flags = 0;
166}
167
168static inline void pm_set_suspend_via_firmware(void)
169{
170	pm_suspend_global_flags |= PM_SUSPEND_FLAG_FW_SUSPEND;
171}
172
173static inline void pm_set_resume_via_firmware(void)
174{
175	pm_suspend_global_flags |= PM_SUSPEND_FLAG_FW_RESUME;
176}
177
178static inline void pm_set_suspend_no_platform(void)
179{
180	pm_suspend_global_flags |= PM_SUSPEND_FLAG_NO_PLATFORM;
181}
182
183/**
184 * pm_suspend_via_firmware - Check if platform firmware will suspend the system.
185 *
186 * To be called during system-wide power management transitions to sleep states
187 * or during the subsequent system-wide transitions back to the working state.
188 *
189 * Return 'true' if the platform firmware is going to be invoked at the end of
190 * the system-wide power management transition (to a sleep state) in progress in
191 * order to complete it, or if the platform firmware has been invoked in order
192 * to complete the last (or preceding) transition of the system to a sleep
193 * state.
194 *
195 * This matters if the caller needs or wants to carry out some special actions
196 * depending on whether or not control will be passed to the platform firmware
197 * subsequently (for example, the device may need to be reset before letting the
198 * platform firmware manipulate it, which is not necessary when the platform
199 * firmware is not going to be invoked) or when such special actions may have
200 * been carried out during the preceding transition of the system to a sleep
201 * state (as they may need to be taken into account).
202 */
203static inline bool pm_suspend_via_firmware(void)
204{
205	return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_SUSPEND);
206}
207
208/**
209 * pm_resume_via_firmware - Check if platform firmware has woken up the system.
210 *
211 * To be called during system-wide power management transitions from sleep
212 * states.
213 *
214 * Return 'true' if the platform firmware has passed control to the kernel at
215 * the beginning of the system-wide power management transition in progress, so
216 * the event that woke up the system from sleep has been handled by the platform
217 * firmware.
218 */
219static inline bool pm_resume_via_firmware(void)
220{
221	return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_RESUME);
222}
223
224/**
225 * pm_suspend_no_platform - Check if platform may change device power states.
226 *
227 * To be called during system-wide power management transitions to sleep states
228 * or during the subsequent system-wide transitions back to the working state.
229 *
230 * Return 'true' if the power states of devices remain under full control of the
231 * kernel throughout the system-wide suspend and resume cycle in progress (that
232 * is, if a device is put into a certain power state during suspend, it can be
233 * expected to remain in that state during resume).
234 */
235static inline bool pm_suspend_no_platform(void)
236{
237	return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_NO_PLATFORM);
238}
239
240/* Suspend-to-idle state machnine. */
241enum s2idle_states {
242	S2IDLE_STATE_NONE,      /* Not suspended/suspending. */
243	S2IDLE_STATE_ENTER,     /* Enter suspend-to-idle. */
244	S2IDLE_STATE_WAKE,      /* Wake up from suspend-to-idle. */
245};
246
247extern enum s2idle_states __read_mostly s2idle_state;
248
249static inline bool idle_should_enter_s2idle(void)
250{
251	return unlikely(s2idle_state == S2IDLE_STATE_ENTER);
252}
253
254extern bool pm_suspend_default_s2idle(void);
255extern void __init pm_states_init(void);
256extern void s2idle_set_ops(const struct platform_s2idle_ops *ops);
257extern void s2idle_wake(void);
258
259/**
260 * arch_suspend_disable_irqs - disable IRQs for suspend
261 *
262 * Disables IRQs (in the default case). This is a weak symbol in the common
263 * code and thus allows architectures to override it if more needs to be
264 * done. Not called for suspend to disk.
265 */
266extern void arch_suspend_disable_irqs(void);
267
268/**
269 * arch_suspend_enable_irqs - enable IRQs after suspend
270 *
271 * Enables IRQs (in the default case). This is a weak symbol in the common
272 * code and thus allows architectures to override it if more needs to be
273 * done. Not called for suspend to disk.
274 */
275extern void arch_suspend_enable_irqs(void);
276
277extern int pm_suspend(suspend_state_t state);
278extern bool sync_on_suspend_enabled;
279#else /* !CONFIG_SUSPEND */
280#define suspend_valid_only_mem	NULL
281
282#define pm_suspend_target_state	(PM_SUSPEND_ON)
283
284static inline void pm_suspend_clear_flags(void) {}
285static inline void pm_set_suspend_via_firmware(void) {}
286static inline void pm_set_resume_via_firmware(void) {}
287static inline bool pm_suspend_via_firmware(void) { return false; }
288static inline bool pm_resume_via_firmware(void) { return false; }
289static inline bool pm_suspend_no_platform(void) { return false; }
290static inline bool pm_suspend_default_s2idle(void) { return false; }
291
292static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {}
293static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
294static inline bool sync_on_suspend_enabled(void) { return true; }
295static inline bool idle_should_enter_s2idle(void) { return false; }
296static inline void __init pm_states_init(void) {}
297static inline void s2idle_set_ops(const struct platform_s2idle_ops *ops) {}
298static inline void s2idle_wake(void) {}
299#endif /* !CONFIG_SUSPEND */
300
301static inline bool pm_suspend_in_progress(void)
302{
303	return pm_suspend_target_state != PM_SUSPEND_ON;
304}
305
306/* struct pbe is used for creating lists of pages that should be restored
307 * atomically during the resume from disk, because the page frames they have
308 * occupied before the suspend are in use.
309 */
310struct pbe {
311	void *address;		/* address of the copy */
312	void *orig_address;	/* original address of a page */
313	struct pbe *next;
314};
315
316/**
317 * struct platform_hibernation_ops - hibernation platform support
318 *
319 * The methods in this structure allow a platform to carry out special
320 * operations required by it during a hibernation transition.
321 *
322 * All the methods below, except for @recover(), must be implemented.
323 *
324 * @begin: Tell the platform driver that we're starting hibernation.
325 *	Called right after shrinking memory and before freezing devices.
326 *
327 * @end: Called by the PM core right after resuming devices, to indicate to
328 *	the platform that the system has returned to the working state.
329 *
330 * @pre_snapshot: Prepare the platform for creating the hibernation image.
331 *	Called right after devices have been frozen and before the nonboot
332 *	CPUs are disabled (runs with IRQs on).
333 *
334 * @finish: Restore the previous state of the platform after the hibernation
335 *	image has been created *or* put the platform into the normal operation
336 *	mode after the hibernation (the same method is executed in both cases).
337 *	Called right after the nonboot CPUs have been enabled and before
338 *	thawing devices (runs with IRQs on).
339 *
340 * @prepare: Prepare the platform for entering the low power state.
341 *	Called right after the hibernation image has been saved and before
342 *	devices are prepared for entering the low power state.
343 *
344 * @enter: Put the system into the low power state after the hibernation image
345 *	has been saved to disk.
346 *	Called after the nonboot CPUs have been disabled and all of the low
347 *	level devices have been shut down (runs with IRQs off).
348 *
349 * @leave: Perform the first stage of the cleanup after the system sleep state
350 *	indicated by @set_target() has been left.
351 *	Called right after the control has been passed from the boot kernel to
352 *	the image kernel, before the nonboot CPUs are enabled and before devices
353 *	are resumed.  Executed with interrupts disabled.
354 *
355 * @pre_restore: Prepare system for the restoration from a hibernation image.
356 *	Called right after devices have been frozen and before the nonboot
357 *	CPUs are disabled (runs with IRQs on).
358 *
359 * @restore_cleanup: Clean up after a failing image restoration.
360 *	Called right after the nonboot CPUs have been enabled and before
361 *	thawing devices (runs with IRQs on).
362 *
363 * @recover: Recover the platform from a failure to suspend devices.
364 *	Called by the PM core if the suspending of devices during hibernation
365 *	fails.  This callback is optional and should only be implemented by
366 *	platforms which require special recovery actions in that situation.
367 */
368struct platform_hibernation_ops {
369	int (*begin)(pm_message_t stage);
370	void (*end)(void);
371	int (*pre_snapshot)(void);
372	void (*finish)(void);
373	int (*prepare)(void);
374	int (*enter)(void);
375	void (*leave)(void);
376	int (*pre_restore)(void);
377	void (*restore_cleanup)(void);
378	void (*recover)(void);
379};
380
381#ifdef CONFIG_HIBERNATION
382/* kernel/power/snapshot.c */
383extern void register_nosave_region(unsigned long b, unsigned long e);
384extern int swsusp_page_is_forbidden(struct page *);
385extern void swsusp_set_page_free(struct page *);
386extern void swsusp_unset_page_free(struct page *);
387extern unsigned long get_safe_page(gfp_t gfp_mask);
388extern asmlinkage int swsusp_arch_suspend(void);
389extern asmlinkage int swsusp_arch_resume(void);
390
391extern u32 swsusp_hardware_signature;
392extern void hibernation_set_ops(const struct platform_hibernation_ops *ops);
393extern int hibernate(void);
394extern bool system_entering_hibernation(void);
395extern bool hibernation_available(void);
396asmlinkage int swsusp_save(void);
397extern struct pbe *restore_pblist;
398int pfn_is_nosave(unsigned long pfn);
399
400int hibernate_quiet_exec(int (*func)(void *data), void *data);
401int hibernate_resume_nonboot_cpu_disable(void);
402int arch_hibernation_header_save(void *addr, unsigned int max_size);
403int arch_hibernation_header_restore(void *addr);
404
405#else /* CONFIG_HIBERNATION */
406static inline void register_nosave_region(unsigned long b, unsigned long e) {}
407static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
408static inline void swsusp_set_page_free(struct page *p) {}
409static inline void swsusp_unset_page_free(struct page *p) {}
410
411static inline void hibernation_set_ops(const struct platform_hibernation_ops *ops) {}
412static inline int hibernate(void) { return -ENOSYS; }
413static inline bool system_entering_hibernation(void) { return false; }
414static inline bool hibernation_available(void) { return false; }
415
416static inline int hibernate_quiet_exec(int (*func)(void *data), void *data) {
417	return -ENOTSUPP;
418}
419#endif /* CONFIG_HIBERNATION */
420
421#if defined(CONFIG_HIBERNATION) && defined(CONFIG_SUSPEND)
422bool pm_hibernation_mode_is_suspend(void);
423#else
424static inline bool pm_hibernation_mode_is_suspend(void) { return false; }
425#endif
426
427int arch_resume_nosmt(void);
428
429#ifdef CONFIG_HIBERNATION_SNAPSHOT_DEV
430int is_hibernate_resume_dev(dev_t dev);
431#else
432static inline int is_hibernate_resume_dev(dev_t dev) { return 0; }
433#endif
434
435/* Hibernation and suspend events */
436#define PM_HIBERNATION_PREPARE	0x0001 /* Going to hibernate */
437#define PM_POST_HIBERNATION	0x0002 /* Hibernation finished */
438#define PM_SUSPEND_PREPARE	0x0003 /* Going to suspend the system */
439#define PM_POST_SUSPEND		0x0004 /* Suspend finished */
440#define PM_RESTORE_PREPARE	0x0005 /* Going to restore a saved image */
441#define PM_POST_RESTORE		0x0006 /* Restore failed */
442
443extern struct mutex system_transition_mutex;
444
445#ifdef CONFIG_PM_SLEEP
446void save_processor_state(void);
447void restore_processor_state(void);
448
449/* kernel/power/main.c */
450extern int register_pm_notifier(struct notifier_block *nb);
451extern int unregister_pm_notifier(struct notifier_block *nb);
452extern void ksys_sync_helper(void);
453extern void pm_report_hw_sleep_time(u64 t);
454extern void pm_report_max_hw_sleep(u64 t);
455void pm_restrict_gfp_mask(void);
456void pm_restore_gfp_mask(void);
457
458#define pm_notifier(fn, pri) {				\
459	static struct notifier_block fn##_nb =			\
460		{ .notifier_call = fn, .priority = pri };	\
461	register_pm_notifier(&fn##_nb);			\
462}
463
464/* drivers/base/power/wakeup.c */
465extern bool events_check_enabled;
466
467static inline bool pm_suspended_storage(void)
468{
469	return !gfp_has_io_fs(gfp_allowed_mask);
470}
471
472extern bool pm_wakeup_pending(void);
473extern void pm_system_wakeup(void);
474extern void pm_system_cancel_wakeup(void);
475extern void pm_wakeup_clear(unsigned int irq_number);
476extern void pm_system_irq_wakeup(unsigned int irq_number);
477extern unsigned int pm_wakeup_irq(void);
478extern bool pm_get_wakeup_count(unsigned int *count, bool block);
479extern bool pm_save_wakeup_count(unsigned int count);
480extern void pm_wakep_autosleep_enabled(bool set);
481extern void pm_print_active_wakeup_sources(void);
482
483extern unsigned int lock_system_sleep(void);
484extern void unlock_system_sleep(unsigned int);
485
486extern bool pm_sleep_transition_in_progress(void);
487bool pm_hibernate_is_recovering(void);
488
489#else /* !CONFIG_PM_SLEEP */
490
491static inline int register_pm_notifier(struct notifier_block *nb)
492{
493	return 0;
494}
495
496static inline int unregister_pm_notifier(struct notifier_block *nb)
497{
498	return 0;
499}
500
501static inline void pm_report_hw_sleep_time(u64 t) {};
502static inline void pm_report_max_hw_sleep(u64 t) {};
503
504static inline void pm_restrict_gfp_mask(void) {}
505static inline void pm_restore_gfp_mask(void) {}
506
507static inline void ksys_sync_helper(void) {}
508
509#define pm_notifier(fn, pri)	do { (void)(fn); } while (0)
510
511static inline bool pm_suspended_storage(void) { return false; }
512static inline bool pm_wakeup_pending(void) { return false; }
513static inline void pm_system_wakeup(void) {}
514static inline void pm_wakeup_clear(bool reset) {}
515static inline void pm_system_irq_wakeup(unsigned int irq_number) {}
516
517static inline unsigned int lock_system_sleep(void) { return 0; }
518static inline void unlock_system_sleep(unsigned int flags) {}
519
520static inline bool pm_sleep_transition_in_progress(void) { return false; }
521static inline bool pm_hibernate_is_recovering(void) { return false; }
522
523#endif /* !CONFIG_PM_SLEEP */
524
525#ifdef CONFIG_PM_SLEEP_DEBUG
526extern bool pm_print_times_enabled;
527extern bool pm_debug_messages_on;
528extern bool pm_debug_messages_should_print(void);
529static inline int pm_dyn_debug_messages_on(void)
530{
531#ifdef CONFIG_DYNAMIC_DEBUG
532	return 1;
533#else
534	return 0;
535#endif
536}
537#ifndef pr_fmt
538#define pr_fmt(fmt) "PM: " fmt
539#endif
540#define __pm_pr_dbg(fmt, ...)					\
541	do {							\
542		if (pm_debug_messages_should_print())		\
543			printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__);	\
544		else if (pm_dyn_debug_messages_on())		\
545			pr_debug(fmt, ##__VA_ARGS__);	\
546	} while (0)
547#define __pm_deferred_pr_dbg(fmt, ...)				\
548	do {							\
549		if (pm_debug_messages_should_print())		\
550			printk_deferred(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__);	\
551	} while (0)
552#else
553#define pm_print_times_enabled	(false)
554#define pm_debug_messages_on	(false)
555
556#include <linux/printk.h>
557
558#define __pm_pr_dbg(fmt, ...) \
559	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
560#define __pm_deferred_pr_dbg(fmt, ...) \
561	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
562#endif
563
564/**
565 * pm_pr_dbg - print pm sleep debug messages
566 *
567 * If pm_debug_messages_on is enabled and the system is entering/leaving
568 *      suspend, print message.
569 * If pm_debug_messages_on is disabled and CONFIG_DYNAMIC_DEBUG is enabled,
570 *	print message only from instances explicitly enabled on dynamic debug's
571 *	control.
572 * If pm_debug_messages_on is disabled and CONFIG_DYNAMIC_DEBUG is disabled,
573 *	don't print message.
574 */
575#define pm_pr_dbg(fmt, ...) \
576	__pm_pr_dbg(fmt, ##__VA_ARGS__)
577
578#define pm_deferred_pr_dbg(fmt, ...) \
579	__pm_deferred_pr_dbg(fmt, ##__VA_ARGS__)
580
581#ifdef CONFIG_PM_AUTOSLEEP
582
583/* kernel/power/autosleep.c */
584void queue_up_suspend_work(void);
585
586#else /* !CONFIG_PM_AUTOSLEEP */
587
588static inline void queue_up_suspend_work(void) {}
589
590#endif /* !CONFIG_PM_AUTOSLEEP */
591
592enum suspend_stat_step {
593	SUSPEND_WORKING = 0,
594	SUSPEND_FREEZE,
595	SUSPEND_PREPARE,
596	SUSPEND_SUSPEND,
597	SUSPEND_SUSPEND_LATE,
598	SUSPEND_SUSPEND_NOIRQ,
599	SUSPEND_RESUME_NOIRQ,
600	SUSPEND_RESUME_EARLY,
601	SUSPEND_RESUME
602};
603
604void dpm_save_failed_dev(const char *name);
605void dpm_save_failed_step(enum suspend_stat_step step);
606
607#endif /* _LINUX_SUSPEND_H */