252 	u64 now, state_start;  in get_recent_times()  local
262 		now = cpu_clock(cpu);  in get_recent_times()
283 			times[s] += now - state_start;  in get_recent_times()
392 static void window_reset(struct psi_window *win, u64 now, u64 value,  in window_reset()  argument
395 	win->start_time = now;  in window_reset()
411 static u64 window_update(struct psi_window *win, u64 now, u64 value)  in window_update()  argument
416 	elapsed = now - win->start_time;  in window_update()
426 		window_reset(win, now, value, growth);  in window_update()
437 static void update_triggers(struct psi_group *group, u64 now,  in update_triggers()  argument
474 			growth = window_update(&t->win, now, total[t->state]);  in update_triggers()
483 		if (now < t->last_event_time + t->win.size)  in update_triggers()
493 		t->last_event_time = now;  in update_triggers()
499 static u64 update_averages(struct psi_group *group, u64 now)  in update_averages()  argument
508 	if (now - expires >= psi_period)  in update_averages()
509 		missed_periods = div_u64(now - expires, psi_period);  in update_averages()
519 	period = now - (group->avg_last_update + (missed_periods * psi_period));  in update_averages()
520 	group->avg_last_update = now;  in update_averages()
557 	u64 now;  in psi_avgs_work()  local
564 	now = sched_clock();  in psi_avgs_work()
574 	if (now >= group->avg_next_update) {  in psi_avgs_work()
575 		update_triggers(group, now, PSI_AVGS);  in psi_avgs_work()
576 		group->avg_next_update = update_averages(group, now);  in psi_avgs_work()
581 				group->avg_next_update - now) + 1);  in psi_avgs_work()
587 static void init_rtpoll_triggers(struct psi_group *group, u64 now)  in init_rtpoll_triggers()  argument
592 		window_reset(&t->win, now,  in init_rtpoll_triggers()
596 	group->rtpoll_next_update = now + group->rtpoll_min_period;  in init_rtpoll_triggers()
631 	u64 now;  in psi_rtpoll_work()  local
635 	now = sched_clock();  in psi_rtpoll_work()
637 	if (now > group->rtpoll_until) {  in psi_rtpoll_work()
678 		if (now > group->rtpoll_until)  in psi_rtpoll_work()
679 			init_rtpoll_triggers(group, now);  in psi_rtpoll_work()
686 		group->rtpoll_until = now +  in psi_rtpoll_work()
690 	if (now > group->rtpoll_until) {  in psi_rtpoll_work()
695 	if (now >= group->rtpoll_next_update) {  in psi_rtpoll_work()
697 			update_triggers(group, now, PSI_POLL);  in psi_rtpoll_work()
701 		group->rtpoll_next_update = now + group->rtpoll_min_period;  in psi_rtpoll_work()
705 		nsecs_to_jiffies(group->rtpoll_next_update - now) + 1,  in psi_rtpoll_work()
738 static void record_times(struct psi_group_cpu *groupc, u64 now)  in record_times()  argument
742 	delta = now - groupc->state_start;  in record_times()
743 	groupc->state_start = now;  in record_times()
768 			     unsigned int clear, unsigned int set, u64 now,  in psi_group_change()  argument
836 			record_times(groupc, now);  in psi_group_change()
860 	record_times(groupc, now);  in psi_group_change()
901 	u64 now;  in psi_task_change()  local
908 	now = cpu_clock(cpu);  in psi_task_change()
912 		psi_group_change(group, cpu, clear, set, now, true);  in psi_task_change()
921 	u64 now = cpu_clock(cpu);  in psi_task_switch()  local
938 			psi_group_change(group, cpu, 0, TSK_ONCPU, now, true);  in psi_task_switch()
976 			psi_group_change(group, cpu, clear, set, now, wake_clock);  in psi_task_switch()
988 				psi_group_change(group, cpu, clear, set, now, wake_clock);  in psi_task_switch()
999 	u64 now;  in psi_account_irqtime()  local
1007 	now = cpu_clock(cpu);  in psi_account_irqtime()
1018 		record_times(groupc, now);  in psi_account_irqtime()
1118 	/* All triggers must be removed by now */  in psi_cgroup_free()
1206 	 * and restart groupc->state_start from now, use .clear = .set = 0  in psi_cgroup_restart()
1215 		u64 now;  in psi_cgroup_restart()  local
1218 		now = cpu_clock(cpu);  in psi_cgroup_restart()
1219 		psi_group_change(group, cpu, 0, 0, now, true);  in psi_cgroup_restart()
1229 	u64 now;  in psi_show()  local
1236 	now = sched_clock();  in psi_show()
1238 	if (now >= group->avg_next_update)  in psi_show()
1239 		group->avg_next_update = update_averages(group, now);  in psi_show()