[PATCH V13 07/14] perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling
Adrian Hunter
adrian.hunter at intel.com
Mon Oct 14 03:51:17 PDT 2024
Events with aux actions or aux sampling expect the PMI to coincide with the
event, which does not happen for large PEBS, so do not enable large PEBS in
that case.
Signed-off-by: Adrian Hunter <adrian.hunter at intel.com>
Reviewed-by: Andi Kleen <ak at linux.intel.com>
---
Changes in V11:
Remove definition of has_aux_action() because it has
already been added as an inline function.
arch/x86/events/intel/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 7ca40002a19b..bb284aff7bfd 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3962,8 +3962,8 @@ static int intel_pmu_hw_config(struct perf_event *event)
if (!(event->attr.freq || (event->attr.wakeup_events && !event->attr.watermark))) {
event->hw.flags |= PERF_X86_EVENT_AUTO_RELOAD;
- if (!(event->attr.sample_type &
- ~intel_pmu_large_pebs_flags(event))) {
+ if (!(event->attr.sample_type & ~intel_pmu_large_pebs_flags(event)) &&
+ !has_aux_action(event)) {
event->hw.flags |= PERF_X86_EVENT_LARGE_PEBS;
event->attach_state |= PERF_ATTACH_SCHED_CB;
}
--
2.43.0
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