162 struct hrtimer_clock_base *lock_hrtimer_base(const struct hrtimer *timer,  in lock_hrtimer_base()  argument
164 	__acquires(&timer->base->lock)  in lock_hrtimer_base()
169 		base = READ_ONCE(timer->base);  in lock_hrtimer_base()
172 			if (likely(base == timer->base))  in lock_hrtimer_base()
195 static bool hrtimer_suitable_target(struct hrtimer *timer, struct hrtimer_clock_base *new_base,  in hrtimer_suitable_target()  argument
217 	expires = ktime_sub(hrtimer_get_expires(timer), new_base->offset);  in hrtimer_suitable_target()
250 switch_hrtimer_base(struct hrtimer *timer, struct hrtimer_clock_base *base,  in switch_hrtimer_base()  argument
272 		if (unlikely(hrtimer_callback_running(timer)))  in switch_hrtimer_base()
276 		WRITE_ONCE(timer->base, &migration_base);  in switch_hrtimer_base()
280 		if (!hrtimer_suitable_target(timer, new_base, new_cpu_base,  in switch_hrtimer_base()
285 			WRITE_ONCE(timer->base, base);  in switch_hrtimer_base()
288 		WRITE_ONCE(timer->base, new_base);  in switch_hrtimer_base()
290 		if (!hrtimer_suitable_target(timer, new_base,  new_cpu_base, this_cpu_base)) {  in switch_hrtimer_base()
301 lock_hrtimer_base(const struct hrtimer *timer, unsigned long *flags)  in lock_hrtimer_base()  argument
302 	__acquires(&timer->base->cpu_base->lock)  in lock_hrtimer_base()
304 	struct hrtimer_clock_base *base = timer->base;  in lock_hrtimer_base()
378 	struct hrtimer *timer = addr;  in hrtimer_fixup_init()  local
382 		hrtimer_cancel(timer);  in hrtimer_fixup_init()
383 		debug_object_init(timer, &hrtimer_debug_descr);  in hrtimer_fixup_init()
412 	struct hrtimer *timer = addr;  in hrtimer_fixup_free()  local
416 		hrtimer_cancel(timer);  in hrtimer_fixup_free()
417 		debug_object_free(timer, &hrtimer_debug_descr);  in hrtimer_fixup_free()
432 static inline void debug_hrtimer_init(struct hrtimer *timer)  in debug_hrtimer_init()  argument
434 	debug_object_init(timer, &hrtimer_debug_descr);  in debug_hrtimer_init()
437 static inline void debug_hrtimer_init_on_stack(struct hrtimer *timer)  in debug_hrtimer_init_on_stack()  argument
439 	debug_object_init_on_stack(timer, &hrtimer_debug_descr);  in debug_hrtimer_init_on_stack()
442 static inline void debug_hrtimer_activate(struct hrtimer *timer,  in debug_hrtimer_activate()  argument
445 	debug_object_activate(timer, &hrtimer_debug_descr);  in debug_hrtimer_activate()
448 static inline void debug_hrtimer_deactivate(struct hrtimer *timer)  in debug_hrtimer_deactivate()  argument
450 	debug_object_deactivate(timer, &hrtimer_debug_descr);  in debug_hrtimer_deactivate()
453 void destroy_hrtimer_on_stack(struct hrtimer *timer)  in destroy_hrtimer_on_stack()  argument
455 	debug_object_free(timer, &hrtimer_debug_descr);  in destroy_hrtimer_on_stack()
461 static inline void debug_hrtimer_init(struct hrtimer *timer) { }  in debug_hrtimer_init()  argument
462 static inline void debug_hrtimer_init_on_stack(struct hrtimer *timer) { }  in debug_hrtimer_init_on_stack()  argument
463 static inline void debug_hrtimer_activate(struct hrtimer *timer,  in debug_hrtimer_activate()  argument
465 static inline void debug_hrtimer_deactivate(struct hrtimer *timer) { }  in debug_hrtimer_deactivate()  argument
468 static inline void debug_setup(struct hrtimer *timer, clockid_t clockid, enum hrtimer_mode mode)  in debug_setup()  argument
470 	debug_hrtimer_init(timer);  in debug_setup()
471 	trace_hrtimer_setup(timer, clockid, mode);  in debug_setup()
474 static inline void debug_setup_on_stack(struct hrtimer *timer, clockid_t clockid,  in debug_setup_on_stack()  argument
477 	debug_hrtimer_init_on_stack(timer);  in debug_setup_on_stack()
478 	trace_hrtimer_setup(timer, clockid, mode);  in debug_setup_on_stack()
481 static inline void debug_activate(struct hrtimer *timer,  in debug_activate()  argument
484 	debug_hrtimer_activate(timer, mode);  in debug_activate()
485 	trace_hrtimer_start(timer, mode);  in debug_activate()
488 static inline void debug_deactivate(struct hrtimer *timer)  in debug_deactivate()  argument
490 	debug_hrtimer_deactivate(timer);  in debug_deactivate()
491 	trace_hrtimer_cancel(timer);  in debug_deactivate()
521 		struct hrtimer *timer;  in __hrtimer_next_event_base()  local
524 		timer = container_of(next, struct hrtimer, node);  in __hrtimer_next_event_base()
525 		if (timer == exclude) {  in __hrtimer_next_event_base()
531 			timer = container_of(next, struct hrtimer, node);  in __hrtimer_next_event_base()
533 		expires = ktime_sub(hrtimer_get_expires(timer), base->offset);  in __hrtimer_next_event_base()
541 			if (timer->is_soft)  in __hrtimer_next_event_base()
542 				cpu_base->softirq_next_timer = timer;  in __hrtimer_next_event_base()
544 				cpu_base->next_timer = timer;  in __hrtimer_next_event_base()
810 static void hrtimer_reprogram(struct hrtimer *timer, bool reprogram)  in hrtimer_reprogram()  argument
813 	struct hrtimer_clock_base *base = timer->base;  in hrtimer_reprogram()
814 	ktime_t expires = ktime_sub(hrtimer_get_expires(timer), base->offset);  in hrtimer_reprogram()
816 	WARN_ON_ONCE(hrtimer_get_expires_tv64(timer) < 0);  in hrtimer_reprogram()
825 	if (timer->is_soft) {  in hrtimer_reprogram()
841 		timer_cpu_base->softirq_next_timer = timer;  in hrtimer_reprogram()
866 	cpu_base->next_timer = timer;  in hrtimer_reprogram()
868 	__hrtimer_reprogram(cpu_base, timer, expires);  in hrtimer_reprogram()
1017 void unlock_hrtimer_base(const struct hrtimer *timer, unsigned long *flags)  in unlock_hrtimer_base()  argument
1018 	__releases(&timer->base->cpu_base->lock)  in unlock_hrtimer_base()
1020 	raw_spin_unlock_irqrestore(&timer->base->cpu_base->lock, *flags);  in unlock_hrtimer_base()
1042 u64 hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval)  in hrtimer_forward()  argument
1047 	delta = ktime_sub(now, hrtimer_get_expires(timer));  in hrtimer_forward()
1052 	if (WARN_ON(timer->state & HRTIMER_STATE_ENQUEUED))  in hrtimer_forward()
1062 		hrtimer_add_expires_ns(timer, incr * orun);  in hrtimer_forward()
1063 		if (hrtimer_get_expires_tv64(timer) > now)  in hrtimer_forward()
1071 	hrtimer_add_expires(timer, interval);  in hrtimer_forward()
1085 static bool enqueue_hrtimer(struct hrtimer *timer, struct hrtimer_clock_base *base,  in enqueue_hrtimer()  argument
1088 	debug_activate(timer, mode);  in enqueue_hrtimer()
1094 	WRITE_ONCE(timer->state, HRTIMER_STATE_ENQUEUED);  in enqueue_hrtimer()
1096 	return timerqueue_add(&base->active, &timer->node);  in enqueue_hrtimer()
1109 static void __remove_hrtimer(struct hrtimer *timer,  in __remove_hrtimer()  argument
1114 	u8 state = timer->state;  in __remove_hrtimer()
1117 	WRITE_ONCE(timer->state, newstate);  in __remove_hrtimer()
1121 	if (!timerqueue_del(&base->active, &timer->node))  in __remove_hrtimer()
1132 	if (reprogram && timer == cpu_base->next_timer)  in __remove_hrtimer()
1140 remove_hrtimer(struct hrtimer *timer, struct hrtimer_clock_base *base,  in remove_hrtimer()  argument
1143 	u8 state = timer->state;  in remove_hrtimer()
1156 		debug_deactivate(timer);  in remove_hrtimer()
1170 		__remove_hrtimer(timer, base, state, reprogram);  in remove_hrtimer()
1176 static inline ktime_t hrtimer_update_lowres(struct hrtimer *timer, ktime_t tim,  in hrtimer_update_lowres()  argument
1185 	timer->is_rel = mode & HRTIMER_MODE_REL;  in hrtimer_update_lowres()
1186 	if (timer->is_rel)  in hrtimer_update_lowres()
1217 static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,  in __hrtimer_start_range_ns()  argument
1234 	force_local &= base->cpu_base->next_timer == timer;  in __hrtimer_start_range_ns()
1253 	remove_hrtimer(timer, base, true, force_local);  in __hrtimer_start_range_ns()
1258 	tim = hrtimer_update_lowres(timer, tim, mode);  in __hrtimer_start_range_ns()
1260 	hrtimer_set_expires_range_ns(timer, tim, delta_ns);  in __hrtimer_start_range_ns()
1264 		new_base = switch_hrtimer_base(timer, base,  in __hrtimer_start_range_ns()
1270 	first = enqueue_hrtimer(timer, new_base, mode);  in __hrtimer_start_range_ns()
1311 void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,  in hrtimer_start_range_ns()  argument
1323 		WARN_ON_ONCE(!(mode & HRTIMER_MODE_SOFT) ^ !timer->is_soft);  in hrtimer_start_range_ns()
1325 		WARN_ON_ONCE(!(mode & HRTIMER_MODE_HARD) ^ !timer->is_hard);  in hrtimer_start_range_ns()
1327 	base = lock_hrtimer_base(timer, &flags);  in hrtimer_start_range_ns()
1329 	if (__hrtimer_start_range_ns(timer, tim, delta_ns, mode, base))  in hrtimer_start_range_ns()
1330 		hrtimer_reprogram(timer, true);  in hrtimer_start_range_ns()
1332 	unlock_hrtimer_base(timer, &flags);  in hrtimer_start_range_ns()
1347 int hrtimer_try_to_cancel(struct hrtimer *timer)  in hrtimer_try_to_cancel()  argument
1359 	if (!hrtimer_active(timer))  in hrtimer_try_to_cancel()
1362 	base = lock_hrtimer_base(timer, &flags);  in hrtimer_try_to_cancel()
1364 	if (!hrtimer_callback_running(timer))  in hrtimer_try_to_cancel()
1365 		ret = remove_hrtimer(timer, base, false, false);  in hrtimer_try_to_cancel()
1367 	unlock_hrtimer_base(timer, &flags);  in hrtimer_try_to_cancel()
1438 void hrtimer_cancel_wait_running(const struct hrtimer *timer)  in hrtimer_cancel_wait_running()  argument
1441 	struct hrtimer_clock_base *base = READ_ONCE(timer->base);  in hrtimer_cancel_wait_running()
1447 	if (!timer->is_soft || is_migration_base(base)) {  in hrtimer_cancel_wait_running()
1483 int hrtimer_cancel(struct hrtimer *timer)  in hrtimer_cancel()  argument
1488 		ret = hrtimer_try_to_cancel(timer);  in hrtimer_cancel()
1491 			hrtimer_cancel_wait_running(timer);  in hrtimer_cancel()
1502 ktime_t __hrtimer_get_remaining(const struct hrtimer *timer, bool adjust)  in __hrtimer_get_remaining()  argument
1507 	lock_hrtimer_base(timer, &flags);  in __hrtimer_get_remaining()
1509 		rem = hrtimer_expires_remaining_adjusted(timer);  in __hrtimer_get_remaining()
1511 		rem = hrtimer_expires_remaining(timer);  in __hrtimer_get_remaining()
1512 	unlock_hrtimer_base(timer, &flags);  in __hrtimer_get_remaining()
1591 static void __hrtimer_setup(struct hrtimer *timer,  in __hrtimer_setup()  argument
1608 	memset(timer, 0, sizeof(struct hrtimer));  in __hrtimer_setup()
1622 	timer->is_soft = softtimer;  in __hrtimer_setup()
1623 	timer->is_hard = !!(mode & HRTIMER_MODE_HARD);  in __hrtimer_setup()
1624 	timer->base = &cpu_base->clock_base[base];  in __hrtimer_setup()
1625 	timerqueue_init(&timer->node);  in __hrtimer_setup()
1628 		ACCESS_PRIVATE(timer, function) = hrtimer_dummy_timeout;  in __hrtimer_setup()
1630 		ACCESS_PRIVATE(timer, function) = function;  in __hrtimer_setup()
1646 void hrtimer_setup(struct hrtimer *timer, enum hrtimer_restart (*function)(struct hrtimer *),  in hrtimer_setup()  argument
1649 	debug_setup(timer, clock_id, mode);  in hrtimer_setup()
1650 	__hrtimer_setup(timer, function, clock_id, mode);  in hrtimer_setup()
1664 void hrtimer_setup_on_stack(struct hrtimer *timer,  in hrtimer_setup_on_stack()  argument
1668 	debug_setup_on_stack(timer, clock_id, mode);  in hrtimer_setup_on_stack()
1669 	__hrtimer_setup(timer, function, clock_id, mode);  in hrtimer_setup_on_stack()
1680 bool hrtimer_active(const struct hrtimer *timer)  in hrtimer_active()  argument
1686 		base = READ_ONCE(timer->base);  in hrtimer_active()
1689 		if (timer->state != HRTIMER_STATE_INACTIVE ||  in hrtimer_active()
1690 		    base->running == timer)  in hrtimer_active()
1694 		 base != READ_ONCE(timer->base));  in hrtimer_active()
1720 			  struct hrtimer *timer, ktime_t *now,  in __run_hrtimer()  argument
1729 	debug_deactivate(timer);  in __run_hrtimer()
1730 	base->running = timer;  in __run_hrtimer()
1741 	__remove_hrtimer(timer, base, HRTIMER_STATE_INACTIVE, 0);  in __run_hrtimer()
1742 	fn = ACCESS_PRIVATE(timer, function);  in __run_hrtimer()
1750 		timer->is_rel = false;  in __run_hrtimer()
1758 	trace_hrtimer_expire_entry(timer, now);  in __run_hrtimer()
1759 	expires_in_hardirq = lockdep_hrtimer_enter(timer);  in __run_hrtimer()
1761 	restart = fn(timer);  in __run_hrtimer()
1764 	trace_hrtimer_expire_exit(timer);  in __run_hrtimer()
1777 	    !(timer->state & HRTIMER_STATE_ENQUEUED))  in __run_hrtimer()
1778 		enqueue_hrtimer(timer, base, HRTIMER_MODE_ABS);  in __run_hrtimer()
1789 	WARN_ON_ONCE(base->running != timer);  in __run_hrtimer()
1806 			struct hrtimer *timer;  in __hrtimer_run_queues()  local
1808 			timer = container_of(node, struct hrtimer, node);  in __hrtimer_run_queues()
1822 			if (basenow < hrtimer_get_softexpires_tv64(timer))  in __hrtimer_run_queues()
1825 			__run_hrtimer(cpu_base, base, timer, &basenow, flags);  in __hrtimer_run_queues()
1989 static enum hrtimer_restart hrtimer_wakeup(struct hrtimer *timer)  in hrtimer_wakeup()  argument
1992 		container_of(timer, struct hrtimer_sleeper, timer);  in hrtimer_wakeup()
2020 	if (IS_ENABLED(CONFIG_PREEMPT_RT) && sl->timer.is_hard)  in hrtimer_sleeper_start_expires()
2023 	hrtimer_start_expires(&sl->timer, mode);  in hrtimer_sleeper_start_expires()
2054 	__hrtimer_setup(&sl->timer, hrtimer_wakeup, clock_id, mode);  in __hrtimer_setup_sleeper()
2067 	debug_setup_on_stack(&sl->timer, clock_id, mode);  in hrtimer_setup_sleeper_on_stack()
2102 		hrtimer_cancel(&t->timer);  in do_nanosleep()
2114 		ktime_t rem = hrtimer_expires_remaining(&t->timer);  in do_nanosleep()
2132 	hrtimer_set_expires_tv64(&t.timer, restart->nanosleep.expires);  in hrtimer_nanosleep_restart()
2134 	destroy_hrtimer_on_stack(&t.timer);  in hrtimer_nanosleep_restart()
2146 	hrtimer_set_expires_range_ns(&t.timer, rqtp, current->timer_slack_ns);  in hrtimer_nanosleep()
2158 	restart->nanosleep.clockid = t.timer.base->clockid;  in hrtimer_nanosleep()
2159 	restart->nanosleep.expires = hrtimer_get_expires_tv64(&t.timer);  in hrtimer_nanosleep()
2162 	destroy_hrtimer_on_stack(&t.timer);  in hrtimer_nanosleep()
2251 	struct hrtimer *timer;  in migrate_hrtimer_list()  local
2255 		timer = container_of(node, struct hrtimer, node);  in migrate_hrtimer_list()
2256 		BUG_ON(hrtimer_callback_running(timer));  in migrate_hrtimer_list()
2257 		debug_deactivate(timer);  in migrate_hrtimer_list()
2264 		__remove_hrtimer(timer, old_base, HRTIMER_STATE_ENQUEUED, 0);  in migrate_hrtimer_list()
2265 		timer->base = new_base;  in migrate_hrtimer_list()
2274 		enqueue_hrtimer(timer, new_base, HRTIMER_MODE_ABS);  in migrate_hrtimer_list()