diff options
Diffstat (limited to 'arch/arc/kernel')
| -rw-r--r-- | arch/arc/kernel/perf_event.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c index 208c954..5b94ceb 100644 --- a/arch/arc/kernel/perf_event.c +++ b/arch/arc/kernel/perf_event.c @@ -147,13 +147,25 @@ static int arc_pmu_event_init(struct perf_event *event) local64_set(&hwc->period_left, hwc->sample_period); } + hwc->config = 0; + + if (is_isa_arcv2()) { + /* "exclude user" means "count only kernel" */ + if (event->attr.exclude_user) + hwc->config |= ARC_REG_PCT_CONFIG_KERN; + + /* "exclude kernel" means "count only user" */ + if (event->attr.exclude_kernel) + hwc->config |= ARC_REG_PCT_CONFIG_USER; + } + switch (event->attr.type) { case PERF_TYPE_HARDWARE: if (event->attr.config >= PERF_COUNT_HW_MAX) return -ENOENT; if (arc_pmu->ev_hw_idx[event->attr.config] < 0) return -ENOENT; - hwc->config = arc_pmu->ev_hw_idx[event->attr.config]; + hwc->config |= arc_pmu->ev_hw_idx[event->attr.config]; pr_debug("init event %d with h/w %d \'%s\'\n", (int) event->attr.config, (int) hwc->config, arc_pmu_ev_hw_map[event->attr.config]); @@ -163,7 +175,7 @@ static int arc_pmu_event_init(struct perf_event *event) ret = arc_pmu_cache_event(event->attr.config); if (ret < 0) return ret; - hwc->config = arc_pmu->ev_hw_idx[ret]; + hwc->config |= arc_pmu->ev_hw_idx[ret]; return 0; default: return -ENOENT; |
