278 	u64 now, state_start;  in get_recent_times()  local
288 		now = cpu_clock(cpu);  in get_recent_times()
309 			times[s] += now - state_start;  in get_recent_times()
418 static void window_reset(struct psi_window *win, u64 now, u64 value,  in window_reset()  argument
421 	win->start_time = now;  in window_reset()
437 static u64 window_update(struct psi_window *win, u64 now, u64 value)  in window_update()  argument
442 	elapsed = now - win->start_time;  in window_update()
452 		window_reset(win, now, value, growth);  in window_update()
463 static void update_triggers(struct psi_group *group, u64 now,  in update_triggers()  argument
500 			growth = window_update(&t->win, now, total[t->state]);  in update_triggers()
509 		if (now < t->last_event_time + t->win.size)  in update_triggers()
519 		t->last_event_time = now;  in update_triggers()
525 static u64 update_averages(struct psi_group *group, u64 now)  in update_averages()  argument
534 	if (now - expires >= psi_period)  in update_averages()
535 		missed_periods = div_u64(now - expires, psi_period);  in update_averages()
545 	period = now - (group->avg_last_update + (missed_periods * psi_period));  in update_averages()
546 	group->avg_last_update = now;  in update_averages()
583 	u64 now;  in psi_avgs_work()  local
590 	now = sched_clock();  in psi_avgs_work()
600 	if (now >= group->avg_next_update) {  in psi_avgs_work()
601 		update_triggers(group, now, PSI_AVGS);  in psi_avgs_work()
602 		group->avg_next_update = update_averages(group, now);  in psi_avgs_work()
607 				group->avg_next_update - now) + 1);  in psi_avgs_work()
613 static void init_rtpoll_triggers(struct psi_group *group, u64 now)  in init_rtpoll_triggers()  argument
618 		window_reset(&t->win, now,  in init_rtpoll_triggers()
622 	group->rtpoll_next_update = now + group->rtpoll_min_period;  in init_rtpoll_triggers()
657 	u64 now;  in psi_rtpoll_work()  local
661 	now = sched_clock();  in psi_rtpoll_work()
663 	if (now > group->rtpoll_until) {  in psi_rtpoll_work()
704 		if (now > group->rtpoll_until)  in psi_rtpoll_work()
705 			init_rtpoll_triggers(group, now);  in psi_rtpoll_work()
712 		group->rtpoll_until = now +  in psi_rtpoll_work()
716 	if (now > group->rtpoll_until) {  in psi_rtpoll_work()
721 	if (now >= group->rtpoll_next_update) {  in psi_rtpoll_work()
723 			update_triggers(group, now, PSI_POLL);  in psi_rtpoll_work()
727 		group->rtpoll_next_update = now + group->rtpoll_min_period;  in psi_rtpoll_work()
731 		nsecs_to_jiffies(group->rtpoll_next_update - now) + 1,  in psi_rtpoll_work()
764 static void record_times(struct psi_group_cpu *groupc, u64 now)  in record_times()  argument
768 	delta = now - groupc->state_start;  in record_times()
769 	groupc->state_start = now;  in record_times()
798 			     u64 now, bool wake_clock)  in psi_group_change()  argument
854 			record_times(groupc, now);  in psi_group_change()
874 	record_times(groupc, now);  in psi_group_change()
912 	u64 now;  in psi_task_change()  local
920 	now = cpu_clock(cpu);  in psi_task_change()
922 		psi_group_change(group, cpu, clear, set, now, true);  in psi_task_change()
931 	u64 now;  in psi_task_switch()  local
934 	now = cpu_clock(cpu);  in psi_task_switch()
950 			psi_group_change(group, cpu, 0, TSK_ONCPU, now, true);  in psi_task_switch()
987 			psi_group_change(group, cpu, clear, set, now, wake_clock);  in psi_task_switch()
999 				psi_group_change(group, cpu, clear, set, now, wake_clock);  in psi_task_switch()
1012 	u64 now;  in psi_account_irqtime()  local
1031 	now = cpu_clock(cpu);  in psi_account_irqtime()
1039 		record_times(groupc, now);  in psi_account_irqtime()
1138 	/* All triggers must be removed by now */  in psi_cgroup_free()
1226 	 * and restart groupc->state_start from now, use .clear = .set = 0  in psi_cgroup_restart()
1233 		u64 now;  in psi_cgroup_restart()  local
1238 		now = cpu_clock(cpu);  in psi_cgroup_restart()
1239 		psi_group_change(group, cpu, 0, 0, now, true);  in psi_cgroup_restart()
1249 	u64 now;  in psi_show()  local
1261 	now = sched_clock();  in psi_show()
1263 	if (now >= group->avg_next_update)  in psi_show()
1264 		group->avg_next_update = update_averages(group, now);  in psi_show()