Commit b343ae51 authored by David S. Miller's avatar David S. Miller
Browse files

sparc64: Support RAW perf events. 



Encoding is "(encoding << 16) | pic_mask"

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b19f8200

arch/sparc/kernel/perf_event.c

+11 −3
Original line number Diff line number Diff line
@@ -1038,6 +1038,7 @@ static int __hw_perf_event_init(struct perf_event *event) 
	if (atomic_read(&nmi_active) < 0)

		return -ENODEV;



	pmap = NULL;

	if (attr->type == PERF_TYPE_HARDWARE) {

		if (attr->config >= sparc_pmu->max_events)

			return -EINVAL;
@@ -1046,9 +1047,18 @@ static int __hw_perf_event_init(struct perf_event *event) 
		pmap = sparc_map_cache_event(attr->config);

		if (IS_ERR(pmap))

			return PTR_ERR(pmap);

	} else

	} else if (attr->type != PERF_TYPE_RAW)

		return -EOPNOTSUPP;



	if (pmap) {

		hwc->event_base = perf_event_encode(pmap);

	} else {

		/* User gives us "(encoding << 16) | pic_mask" for

		 * PERF_TYPE_RAW events.

		 */

		hwc->event_base = attr->config;

	}



	/* We save the enable bits in the config_base.  */

	hwc->config_base = sparc_pmu->irq_bit;

	if (!attr->exclude_user)
@@ -1058,8 +1068,6 @@ static int __hw_perf_event_init(struct perf_event *event) 
	if (!attr->exclude_hv)

		hwc->config_base |= sparc_pmu->hv_bit;



	hwc->event_base = perf_event_encode(pmap);



	n = 0;

	if (event->group_leader != event) {

		n = collect_events(event->group_leader,