164 static inline void unlock_timer(struct k_itimer *timr, unsigned long flags)  in unlock_timer()  argument
166 	spin_unlock_irqrestore(&timr->it_lock, flags);  in unlock_timer()
286 static inline int timer_overrun_to_int(struct k_itimer *timr, int baseval)  in timer_overrun_to_int()  argument
288 	s64 sum = timr->it_overrun_last + (s64)baseval;  in timer_overrun_to_int()
293 static void common_hrtimer_rearm(struct k_itimer *timr)  in common_hrtimer_rearm()  argument
295 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_rearm()
297 	timr->it_overrun += hrtimer_forward(timer, timer->base->get_time(),  in common_hrtimer_rearm()
298 					    timr->it_interval);  in common_hrtimer_rearm()
315 	struct k_itimer *timr;  in posixtimer_rearm()  local
318 	timr = lock_timer(info->si_tid, &flags);  in posixtimer_rearm()
319 	if (!timr)  in posixtimer_rearm()
322 	if (timr->it_interval && timr->it_requeue_pending == info->si_sys_private) {  in posixtimer_rearm()
323 		timr->kclock->timer_rearm(timr);  in posixtimer_rearm()
325 		timr->it_active = 1;  in posixtimer_rearm()
326 		timr->it_overrun_last = timr->it_overrun;  in posixtimer_rearm()
327 		timr->it_overrun = -1LL;  in posixtimer_rearm()
328 		++timr->it_requeue_pending;  in posixtimer_rearm()
330 		info->si_overrun = timer_overrun_to_int(timr, info->si_overrun);  in posixtimer_rearm()
333 	unlock_timer(timr, flags);  in posixtimer_rearm()
336 int posix_timer_event(struct k_itimer *timr, int si_private)  in posix_timer_event()  argument
351 	timr->sigq->info.si_sys_private = si_private;  in posix_timer_event()
353 	type = !(timr->it_sigev_notify & SIGEV_THREAD_ID) ? PIDTYPE_TGID : PIDTYPE_PID;  in posix_timer_event()
354 	ret = send_sigqueue(timr->sigq, timr->it_pid, type);  in posix_timer_event()
368 	struct k_itimer *timr;  in posix_timer_fn()  local
373 	timr = container_of(timer, struct k_itimer, it.real.timer);  in posix_timer_fn()
374 	spin_lock_irqsave(&timr->it_lock, flags);  in posix_timer_fn()
376 	timr->it_active = 0;  in posix_timer_fn()
377 	if (timr->it_interval != 0)  in posix_timer_fn()
378 		si_private = ++timr->it_requeue_pending;  in posix_timer_fn()
380 	if (posix_timer_event(timr, si_private)) {  in posix_timer_fn()
386 		if (timr->it_interval != 0) {  in posix_timer_fn()
415 				if (timr->it_interval < kj)  in posix_timer_fn()
419 			timr->it_overrun += hrtimer_forward(timer, now,  in posix_timer_fn()
420 							    timr->it_interval);  in posix_timer_fn()
422 			++timr->it_requeue_pending;  in posix_timer_fn()
423 			timr->it_active = 1;  in posix_timer_fn()
427 	unlock_timer(timr, flags);  in posix_timer_fn()
616 	struct k_itimer *timr;  in __lock_timer()  local
626 	timr = posix_timer_by_id(timer_id);  in __lock_timer()
627 	if (timr) {  in __lock_timer()
628 		spin_lock_irqsave(&timr->it_lock, *flags);  in __lock_timer()
629 		if (timr->it_signal == current->signal) {  in __lock_timer()
631 			return timr;  in __lock_timer()
633 		spin_unlock_irqrestore(&timr->it_lock, *flags);  in __lock_timer()
640 static ktime_t common_hrtimer_remaining(struct k_itimer *timr, ktime_t now)  in common_hrtimer_remaining()  argument
642 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_remaining()
647 static s64 common_hrtimer_forward(struct k_itimer *timr, ktime_t now)  in common_hrtimer_forward()  argument
649 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_forward()
651 	return hrtimer_forward(timer, now, timr->it_interval);  in common_hrtimer_forward()
670 void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting)  in common_timer_get()  argument
672 	const struct k_clock *kc = timr->kclock;  in common_timer_get()
676 	sig_none = timr->it_sigev_notify == SIGEV_NONE;  in common_timer_get()
677 	iv = timr->it_interval;  in common_timer_get()
682 	} else if (!timr->it_active) {  in common_timer_get()
691 	now = kc->clock_get_ktime(timr->it_clock);  in common_timer_get()
697 	if (iv && (timr->it_requeue_pending & REQUEUE_PENDING || sig_none))  in common_timer_get()
698 		timr->it_overrun += kc->timer_forward(timr, now);  in common_timer_get()
700 	remaining = kc->timer_remaining(timr, now);  in common_timer_get()
717 	struct k_itimer *timr;  in do_timer_gettime()  local
722 	timr = lock_timer(timer_id, &flags);  in do_timer_gettime()
723 	if (!timr)  in do_timer_gettime()
727 	kc = timr->kclock;  in do_timer_gettime()
731 		kc->timer_get(timr, setting);  in do_timer_gettime()
733 	unlock_timer(timr, flags);  in do_timer_gettime()
779 	struct k_itimer *timr;  in SYSCALL_DEFINE1()  local
783 	timr = lock_timer(timer_id, &flags);  in SYSCALL_DEFINE1()
784 	if (!timr)  in SYSCALL_DEFINE1()
787 	overrun = timer_overrun_to_int(timr, 0);  in SYSCALL_DEFINE1()
788 	unlock_timer(timr, flags);  in SYSCALL_DEFINE1()
793 static void common_hrtimer_arm(struct k_itimer *timr, ktime_t expires,  in common_hrtimer_arm()  argument
796 	struct hrtimer *timer = &timr->it.real.timer;  in common_hrtimer_arm()
809 	if (timr->it_clock == CLOCK_REALTIME)  in common_hrtimer_arm()
810 		timr->kclock = absolute ? &clock_realtime : &clock_monotonic;  in common_hrtimer_arm()
812 	hrtimer_init(&timr->it.real.timer, timr->it_clock, mode);  in common_hrtimer_arm()
813 	timr->it.real.timer.function = posix_timer_fn;  in common_hrtimer_arm()
823 static int common_hrtimer_try_to_cancel(struct k_itimer *timr)  in common_hrtimer_try_to_cancel()  argument
825 	return hrtimer_try_to_cancel(&timr->it.real.timer);  in common_hrtimer_try_to_cancel()
858 int common_timer_set(struct k_itimer *timr, int flags,  in common_timer_set()  argument
862 	const struct k_clock *kc = timr->kclock;  in common_timer_set()
867 		common_timer_get(timr, old_setting);  in common_timer_set()
870 	timr->it_interval = 0;  in common_timer_set()
875 	if (kc->timer_try_to_cancel(timr) < 0)  in common_timer_set()
878 	timr->it_active = 0;  in common_timer_set()
879 	timr->it_requeue_pending = (timr->it_requeue_pending + 2) &  in common_timer_set()
881 	timr->it_overrun_last = 0;  in common_timer_set()
887 	timr->it_interval = timespec64_to_ktime(new_setting->it_interval);  in common_timer_set()
890 		expires = timens_ktime_to_host(timr->it_clock, expires);  in common_timer_set()
891 	sigev_none = timr->it_sigev_notify == SIGEV_NONE;  in common_timer_set()
893 	kc->timer_arm(timr, expires, flags & TIMER_ABSTIME, sigev_none);  in common_timer_set()
894 	timr->it_active = !sigev_none;  in common_timer_set()
903 	struct k_itimer *timr;  in do_timer_settime()  local
914 	timr = lock_timer(timer_id, &flags);  in do_timer_settime()
916 	if (!timr)  in do_timer_settime()
919 	kc = timr->kclock;  in do_timer_settime()
923 		error = kc->timer_set(timr, tmr_flags, new_spec64, old_spec64);  in do_timer_settime()
929 		timr = timer_wait_running(timr, &flags);  in do_timer_settime()
932 	unlock_timer(timr, flags);  in do_timer_settime()