381 static void maybe_change_configuration(struct cpu_hw_events *cpuc)  in maybe_change_configuration()  argument
385 	if (cpuc->n_added == 0)  in maybe_change_configuration()
389 	for (j = 0; j < cpuc->n_events; j++) {  in maybe_change_configuration()
390 		struct perf_event *pe = cpuc->event[j];  in maybe_change_configuration()
392 		if (cpuc->current_idx[j] != PMC_NO_INDEX &&  in maybe_change_configuration()
393 			cpuc->current_idx[j] != pe->hw.idx) {  in maybe_change_configuration()
394 			alpha_perf_event_update(pe, &pe->hw, cpuc->current_idx[j], 0);  in maybe_change_configuration()
395 			cpuc->current_idx[j] = PMC_NO_INDEX;  in maybe_change_configuration()
400 	cpuc->idx_mask = 0;  in maybe_change_configuration()
401 	for (j = 0; j < cpuc->n_events; j++) {  in maybe_change_configuration()
402 		struct perf_event *pe = cpuc->event[j];  in maybe_change_configuration()
406 		if (cpuc->current_idx[j] == PMC_NO_INDEX) {  in maybe_change_configuration()
408 			cpuc->current_idx[j] = idx;  in maybe_change_configuration()
412 			cpuc->idx_mask |= (1<<cpuc->current_idx[j]);  in maybe_change_configuration()
414 	cpuc->config = cpuc->event[0]->hw.config_base;  in maybe_change_configuration()
425 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);  in alpha_pmu_add()  local
446 	n0 = cpuc->n_events;  in alpha_pmu_add()
448 		cpuc->event[n0] = event;  in alpha_pmu_add()
449 		cpuc->evtype[n0] = event->hw.event_base;  in alpha_pmu_add()
450 		cpuc->current_idx[n0] = PMC_NO_INDEX;  in alpha_pmu_add()
452 		if (!alpha_check_constraints(cpuc->event, cpuc->evtype, n0+1)) {  in alpha_pmu_add()
453 			cpuc->n_events++;  in alpha_pmu_add()
454 			cpuc->n_added++;  in alpha_pmu_add()
477 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);  in alpha_pmu_del()  local
485 	for (j = 0; j < cpuc->n_events; j++) {  in alpha_pmu_del()
486 		if (event == cpuc->event[j]) {  in alpha_pmu_del()
487 			int idx = cpuc->current_idx[j];  in alpha_pmu_del()
492 			while (++j < cpuc->n_events) {  in alpha_pmu_del()
493 				cpuc->event[j - 1] = cpuc->event[j];  in alpha_pmu_del()
494 				cpuc->evtype[j - 1] = cpuc->evtype[j];  in alpha_pmu_del()
495 				cpuc->current_idx[j - 1] =  in alpha_pmu_del()
496 					cpuc->current_idx[j];  in alpha_pmu_del()
503 			cpuc->idx_mask &= ~(1UL<<idx);  in alpha_pmu_del()
504 			cpuc->n_events--;  in alpha_pmu_del()
525 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);  in alpha_pmu_stop()  local
528 		cpuc->idx_mask &= ~(1UL<<hwc->idx);  in alpha_pmu_stop()
537 	if (cpuc->enabled)  in alpha_pmu_stop()
545 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);  in alpha_pmu_start()  local
557 	cpuc->idx_mask |= 1UL<<hwc->idx;  in alpha_pmu_start()
558 	if (cpuc->enabled)  in alpha_pmu_start()
716 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);  in alpha_pmu_enable()  local
718 	if (cpuc->enabled)  in alpha_pmu_enable()
721 	cpuc->enabled = 1;  in alpha_pmu_enable()
724 	if (cpuc->n_events > 0) {  in alpha_pmu_enable()
726 		maybe_change_configuration(cpuc);  in alpha_pmu_enable()
730 		wrperfmon(PERFMON_CMD_DESIRED_EVENTS, cpuc->config);  in alpha_pmu_enable()
731 		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);  in alpha_pmu_enable()
742 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);  in alpha_pmu_disable()  local
744 	if (!cpuc->enabled)  in alpha_pmu_disable()
747 	cpuc->enabled = 0;  in alpha_pmu_disable()
748 	cpuc->n_added = 0;  in alpha_pmu_disable()
750 	wrperfmon(PERFMON_CMD_DISABLE, cpuc->idx_mask);  in alpha_pmu_disable()
800 	struct cpu_hw_events *cpuc;  in alpha_perf_event_irq_handler()  local
807 	cpuc = &__get_cpu_var(cpu_hw_events);  in alpha_perf_event_irq_handler()
814 	wrperfmon(PERFMON_CMD_DISABLE, cpuc->idx_mask);  in alpha_perf_event_irq_handler()
821 		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);  in alpha_perf_event_irq_handler()
828 	for (j = 0; j < cpuc->n_events; j++) {  in alpha_perf_event_irq_handler()
829 		if (cpuc->current_idx[j] == idx)  in alpha_perf_event_irq_handler()
833 	if (unlikely(j == cpuc->n_events)) {  in alpha_perf_event_irq_handler()
835 		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);  in alpha_perf_event_irq_handler()
839 	event = cpuc->event[j];  in alpha_perf_event_irq_handler()
845 		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);  in alpha_perf_event_irq_handler()
861 	wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);  in alpha_perf_event_irq_handler()