Lines Matching refs:alarm
159 static void alarmtimer_enqueue(struct alarm_base *base, struct alarm *alarm) in alarmtimer_enqueue() argument
161 if (alarm->state & ALARMTIMER_STATE_ENQUEUED) in alarmtimer_enqueue()
162 timerqueue_del(&base->timerqueue, &alarm->node); in alarmtimer_enqueue()
164 timerqueue_add(&base->timerqueue, &alarm->node); in alarmtimer_enqueue()
165 alarm->state |= ALARMTIMER_STATE_ENQUEUED; in alarmtimer_enqueue()
177 static void alarmtimer_dequeue(struct alarm_base *base, struct alarm *alarm) in alarmtimer_dequeue() argument
179 if (!(alarm->state & ALARMTIMER_STATE_ENQUEUED)) in alarmtimer_dequeue()
182 timerqueue_del(&base->timerqueue, &alarm->node); in alarmtimer_dequeue()
183 alarm->state &= ~ALARMTIMER_STATE_ENQUEUED; in alarmtimer_dequeue()
198 struct alarm *alarm = container_of(timer, struct alarm, timer); in alarmtimer_fired() local
199 struct alarm_base *base = &alarm_bases[alarm->type]; in alarmtimer_fired()
205 alarmtimer_dequeue(base, alarm); in alarmtimer_fired()
208 if (alarm->function) in alarmtimer_fired()
209 restart = alarm->function(alarm, base->get_ktime()); in alarmtimer_fired()
213 hrtimer_set_expires(&alarm->timer, alarm->node.expires); in alarmtimer_fired()
214 alarmtimer_enqueue(base, alarm); in alarmtimer_fired()
219 trace_alarmtimer_fired(alarm, base->get_ktime()); in alarmtimer_fired()
224 ktime_t alarm_expires_remaining(const struct alarm *alarm) in alarm_expires_remaining() argument
226 struct alarm_base *base = &alarm_bases[alarm->type]; in alarm_expires_remaining()
227 return ktime_sub(alarm->node.expires, base->get_ktime()); in alarm_expires_remaining()
336 __alarm_init(struct alarm *alarm, enum alarmtimer_type type, in __alarm_init() argument
337 enum alarmtimer_restart (*function)(struct alarm *, ktime_t)) in __alarm_init() argument
339 timerqueue_init(&alarm->node); in __alarm_init()
340 alarm->timer.function = alarmtimer_fired; in __alarm_init()
341 alarm->function = function; in __alarm_init()
342 alarm->type = type; in __alarm_init()
343 alarm->state = ALARMTIMER_STATE_INACTIVE; in __alarm_init()
352 void alarm_init(struct alarm *alarm, enum alarmtimer_type type, in alarm_init() argument
353 enum alarmtimer_restart (*function)(struct alarm *, ktime_t)) in alarm_init() argument
355 hrtimer_init(&alarm->timer, alarm_bases[type].base_clockid, in alarm_init()
357 __alarm_init(alarm, type, function); in alarm_init()
366 void alarm_start(struct alarm *alarm, ktime_t start) in alarm_start() argument
368 struct alarm_base *base = &alarm_bases[alarm->type]; in alarm_start()
372 alarm->node.expires = start; in alarm_start()
373 alarmtimer_enqueue(base, alarm); in alarm_start()
374 hrtimer_start(&alarm->timer, alarm->node.expires, HRTIMER_MODE_ABS); in alarm_start()
377 trace_alarmtimer_start(alarm, base->get_ktime()); in alarm_start()
386 void alarm_start_relative(struct alarm *alarm, ktime_t start) in alarm_start_relative() argument
388 struct alarm_base *base = &alarm_bases[alarm->type]; in alarm_start_relative()
391 alarm_start(alarm, start); in alarm_start_relative()
395 void alarm_restart(struct alarm *alarm) in alarm_restart() argument
397 struct alarm_base *base = &alarm_bases[alarm->type]; in alarm_restart()
401 hrtimer_set_expires(&alarm->timer, alarm->node.expires); in alarm_restart()
402 hrtimer_restart(&alarm->timer); in alarm_restart()
403 alarmtimer_enqueue(base, alarm); in alarm_restart()
415 int alarm_try_to_cancel(struct alarm *alarm) in alarm_try_to_cancel() argument
417 struct alarm_base *base = &alarm_bases[alarm->type]; in alarm_try_to_cancel()
422 ret = hrtimer_try_to_cancel(&alarm->timer); in alarm_try_to_cancel()
424 alarmtimer_dequeue(base, alarm); in alarm_try_to_cancel()
427 trace_alarmtimer_cancel(alarm, base->get_ktime()); in alarm_try_to_cancel()
439 int alarm_cancel(struct alarm *alarm) in alarm_cancel() argument
442 int ret = alarm_try_to_cancel(alarm); in alarm_cancel()
445 hrtimer_cancel_wait_running(&alarm->timer); in alarm_cancel()
451 u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval) in alarm_forward() argument
456 delta = ktime_sub(now, alarm->node.expires); in alarm_forward()
466 alarm->node.expires = ktime_add_ns(alarm->node.expires, in alarm_forward()
469 if (alarm->node.expires > now) in alarm_forward()
478 alarm->node.expires = ktime_add_safe(alarm->node.expires, interval); in alarm_forward()
483 static u64 __alarm_forward_now(struct alarm *alarm, ktime_t interval, bool throttle) in __alarm_forward_now() argument
485 struct alarm_base *base = &alarm_bases[alarm->type]; in __alarm_forward_now()
506 return alarm_forward(alarm, now, interval); in __alarm_forward_now()
509 u64 alarm_forward_now(struct alarm *alarm, ktime_t interval) in alarm_forward_now() argument
511 return __alarm_forward_now(alarm, interval, false); in alarm_forward_now()
570 static enum alarmtimer_restart alarm_handle_timer(struct alarm *alarm, in alarm_handle_timer() argument
573 struct k_itimer *ptr = container_of(alarm, struct k_itimer, in alarm_handle_timer()
574 it.alarm.alarmtimer); in alarm_handle_timer()
586 ptr->it_overrun += __alarm_forward_now(alarm, ptr->it_interval, true); in alarm_handle_timer()
602 struct alarm *alarm = &timr->it.alarm.alarmtimer; in alarm_timer_rearm() local
604 timr->it_overrun += alarm_forward_now(alarm, timr->it_interval); in alarm_timer_rearm()
605 alarm_start(alarm, alarm->node.expires); in alarm_timer_rearm()
615 struct alarm *alarm = &timr->it.alarm.alarmtimer; in alarm_timer_forward() local
617 return alarm_forward(alarm, timr->it_interval, now); in alarm_timer_forward()
627 struct alarm *alarm = &timr->it.alarm.alarmtimer; in alarm_timer_remaining() local
629 return ktime_sub(alarm->node.expires, now); in alarm_timer_remaining()
638 return alarm_try_to_cancel(&timr->it.alarm.alarmtimer); in alarm_timer_try_to_cancel()
651 hrtimer_cancel_wait_running(&timr->it.alarm.alarmtimer.timer); in alarm_timer_wait_running()
664 struct alarm *alarm = &timr->it.alarm.alarmtimer; in alarm_timer_arm() local
665 struct alarm_base *base = &alarm_bases[alarm->type]; in alarm_timer_arm()
670 alarm->node.expires = expires; in alarm_timer_arm()
672 alarm_start(&timr->it.alarm.alarmtimer, expires); in alarm_timer_arm()
744 alarm_init(&new_timer->it.alarm.alarmtimer, type, alarm_handle_timer); in alarm_timer_create()
757 static enum alarmtimer_restart alarmtimer_nsleep_wakeup(struct alarm *alarm, in alarmtimer_nsleep_wakeup() argument
760 struct task_struct *task = alarm->data; in alarmtimer_nsleep_wakeup()
762 alarm->data = NULL; in alarmtimer_nsleep_wakeup()
776 static int alarmtimer_do_nsleep(struct alarm *alarm, ktime_t absexp, in alarmtimer_do_nsleep() argument
780 alarm->data = (void *)current; in alarmtimer_do_nsleep()
783 alarm_start(alarm, absexp); in alarmtimer_do_nsleep()
784 if (likely(alarm->data)) in alarmtimer_do_nsleep()
787 alarm_cancel(alarm); in alarmtimer_do_nsleep()
788 } while (alarm->data && !signal_pending(current)); in alarmtimer_do_nsleep()
792 destroy_hrtimer_on_stack(&alarm->timer); in alarmtimer_do_nsleep()
794 if (!alarm->data) in alarmtimer_do_nsleep()
816 alarm_init_on_stack(struct alarm *alarm, enum alarmtimer_type type, in alarm_init_on_stack() argument
817 enum alarmtimer_restart (*function)(struct alarm *, ktime_t)) in alarm_init_on_stack() argument
819 hrtimer_init_on_stack(&alarm->timer, alarm_bases[type].base_clockid, in alarm_init_on_stack()
821 __alarm_init(alarm, type, function); in alarm_init_on_stack()
834 struct alarm alarm; in alarm_timer_nsleep_restart() local
836 alarm_init_on_stack(&alarm, type, alarmtimer_nsleep_wakeup); in alarm_timer_nsleep_restart()
838 return alarmtimer_do_nsleep(&alarm, exp, type); in alarm_timer_nsleep_restart()
854 struct alarm alarm; in alarm_timer_nsleep() local
867 alarm_init_on_stack(&alarm, type, alarmtimer_nsleep_wakeup); in alarm_timer_nsleep()
879 ret = alarmtimer_do_nsleep(&alarm, exp, type); in alarm_timer_nsleep()