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perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling

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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@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Link: https://lkml.kernel.org/r/20241022155920.17511-5-adrian.hunter@intel.com
This commit is contained in:
Adrian Hunter
2024-10-22 18:59:10 +03:00
committed by Peter Zijlstra
parent 08c7454ceb
commit 0d5eb14c1e
1 changed files with 2 additions and 2 deletions
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4
arch/x86/events/intel/core.c
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@@ -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;
}