diff options
| -rw-r--r-- | arch/x86/events/intel/cqm.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/arch/x86/events/intel/cqm.c b/arch/x86/events/intel/cqm.c index 610bd8a..a98f472 100644 --- a/arch/x86/events/intel/cqm.c +++ b/arch/x86/events/intel/cqm.c @@ -450,6 +450,7 @@ struct rmid_read { static void __intel_cqm_event_count(void *info); static void init_mbm_sample(u32 rmid, u32 evt_type); +static void __intel_mbm_event_count(void *info); static bool is_mbm_event(int e) { @@ -476,8 +477,14 @@ static u32 intel_cqm_xchg_rmid(struct perf_event *group, u32 rmid) .rmid = old_rmid, }; - on_each_cpu_mask(&cqm_cpumask, __intel_cqm_event_count, - &rr, 1); + if (is_mbm_event(group->attr.config)) { + rr.evt_type = group->attr.config; + on_each_cpu_mask(&cqm_cpumask, __intel_mbm_event_count, + &rr, 1); + } else { + on_each_cpu_mask(&cqm_cpumask, __intel_cqm_event_count, + &rr, 1); + } local64_set(&group->count, atomic64_read(&rr.value)); } @@ -489,6 +496,22 @@ static u32 intel_cqm_xchg_rmid(struct perf_event *group, u32 rmid) raw_spin_unlock_irq(&cache_lock); + /* + * If the allocation is for mbm, init the mbm stats. + * Need to check if each event in the group is mbm event + * because there could be multiple type of events in the same group. + */ + if (__rmid_valid(rmid)) { + event = group; + if (is_mbm_event(event->attr.config)) + init_mbm_sample(rmid, event->attr.config); + + list_for_each_entry(event, head, hw.cqm_group_entry) { + if (is_mbm_event(event->attr.config)) + init_mbm_sample(rmid, event->attr.config); + } + } + return old_rmid; } @@ -978,7 +1001,7 @@ static void intel_cqm_setup_event(struct perf_event *event, /* All tasks in a group share an RMID */ event->hw.cqm_rmid = rmid; *group = iter; - if (is_mbm_event(event->attr.config)) + if (is_mbm_event(event->attr.config) && __rmid_valid(rmid)) init_mbm_sample(rmid, event->attr.config); return; } @@ -996,7 +1019,7 @@ static void intel_cqm_setup_event(struct perf_event *event, else rmid = __get_rmid(); - if (is_mbm_event(event->attr.config)) + if (is_mbm_event(event->attr.config) && __rmid_valid(rmid)) init_mbm_sample(rmid, event->attr.config); event->hw.cqm_rmid = rmid; |
