106 static void irqs_update(struct irqt_stat *irqs, u64 ts)  in irqs_update()  argument
108 	u64 old_ts = irqs->last_ts;  in irqs_update()
117 	irqs->last_ts = ts;  in irqs_update()
138 		memset(irqs, 0, sizeof(*irqs));  in irqs_update()
139 		irqs->last_ts = ts;  in irqs_update()
147 	diff = interval - irqs->avg;  in irqs_update()
152 	irqs->nr_samples++;  in irqs_update()
161 	if (likely(irqs->nr_samples > 1))  in irqs_update()
162 		variance = irqs->variance >> IRQ_TIMINGS_SHIFT;  in irqs_update()
170 	if ((irqs->nr_samples >= 30) && ((diff * diff) > (9 * variance))) {  in irqs_update()
175 		if (irqs->anomalies++ >= 3) {  in irqs_update()
176 			memset(irqs, 0, sizeof(*irqs));  in irqs_update()
177 			irqs->last_ts = ts;  in irqs_update()
185 		irqs->anomalies = 0;  in irqs_update()
192 	irqs->valid = 1;  in irqs_update()
203 	irqs->avg = irqs->avg + (diff >> IRQ_TIMINGS_SHIFT);  in irqs_update()
213 	irqs->variance = irqs->variance + (diff * (interval - irqs->avg));  in irqs_update()
218 	irqs->next_evt = ts + irqs->avg;  in irqs_update()
250 	struct irqt_stat *irqs;  in irq_timings_next_event()  local
284 			irqs = this_cpu_ptr(s);  in irq_timings_next_event()
285 			irqs_update(irqs, ts);  in irq_timings_next_event()
295 		irqs = this_cpu_ptr(s);  in irq_timings_next_event()
297 		if (!irqs->valid)  in irq_timings_next_event()
300 		if (irqs->next_evt <= now) {  in irq_timings_next_event()
309 			irqs->valid = 0;  in irq_timings_next_event()
313 		if (irqs->next_evt < next_evt) {  in irq_timings_next_event()
315 			next_evt = irqs->next_evt;  in irq_timings_next_event()