drivers/perf/apple_m1_cpu_pmu.c

93  * Per-event affinity table. Most events can be installed on counter
150 	return sprintf(page, "event=0x%04llx\n", pmu_attr->id);
167 PMU_FORMAT_ATTR(event, "config:0-7");
296 static void m1_pmu_configure_counter(unsigned int index, u8 event,
331 	 * place the event at the expected location in the relevant
332 	 * register (PMESR0 holds the event configuration for counters
342 		val |= (u64)event << shift;
349 		val |= (u64)event << shift;
356 static void m1_pmu_enable_event(struct perf_event *event)
361 	evt = event->hw.config_base & M1_PMU_CFG_EVENT;
362 	user = event->hw.config_base & M1_PMU_CFG_COUNT_USER;
363 	kernel = event->hw.config_base & M1_PMU_CFG_COUNT_KERNEL;
365 	m1_pmu_disable_counter_interrupt(event->hw.idx);
366 	m1_pmu_disable_counter(event->hw.idx);
369 	m1_pmu_configure_counter(event->hw.idx, evt, user, kernel);
370 	m1_pmu_enable_counter(event->hw.idx);
371 	m1_pmu_enable_counter_interrupt(event->hw.idx);
375 static void m1_pmu_disable_event(struct perf_event *event)
377 	m1_pmu_disable_counter_interrupt(event->hw.idx);
378 	m1_pmu_disable_counter(event->hw.idx);
404 		struct perf_event *event = cpuc->events[idx];
407 		if (!event)
410 		armpmu_event_update(event);
411 		perf_sample_data_init(&data, 0, event->hw.last_period);
412 		if (!armpmu_event_set_period(event))
415 		if (perf_event_overflow(event, &data, regs))
416 			m1_pmu_disable_event(event);
424 static u64 m1_pmu_read_counter(struct perf_event *event)
426 	return m1_pmu_read_hw_counter(event->hw.idx);
429 static void m1_pmu_write_counter(struct perf_event *event, u64 value)
431 	m1_pmu_write_hw_counter(value, event->hw.idx);
436 				struct perf_event *event)
438 	unsigned long evtype = event->hw.config_base & M1_PMU_CFG_EVENT;
443 	 * Place the event on the first free counter that can count
444 	 * this event.
459 				   struct perf_event *event)
461 	clear_bit(event->hw.idx, cpuc->used_mask);
485 static int m1_pmu_map_event(struct perf_event *event)
492 	event->hw.flags |= ARMPMU_EVT_47BIT;
493 	return armpmu_map_event(event, &m1_pmu_perf_map, NULL, M1_PMU_CFG_EVENT);
496 static int m2_pmu_map_event(struct perf_event *event)
503 	event->hw.flags |= ARMPMU_EVT_63BIT;
504 	return armpmu_map_event(event, &m1_pmu_perf_map, NULL, M1_PMU_CFG_EVENT);
522 static int m1_pmu_set_event_filter(struct hw_perf_event *event,
536 	event->config_base = config_base;