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perf intel-pt: Fix async branch flags

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commit f2d87895cbc4af80649850dcf5da36de6b2ed3dd upstream.

Ensure PERF_IP_FLAG_ASYNC is set always for asynchronous branches (i.e.
interrupts etc).

Fixes: 90e457f7be ("perf tools: Add Intel PT support")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20230928072953.19369-1-adrian.hunter@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Adrian Hunter 2023-09-28 10:29:53 +03:00 • committed by Greg Kroah-Hartman
parent a1d8f675ea
commit 4cb064f617
1 changed files with 2 additions and 0 deletions
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2
tools/perf/util/intel-pt.c
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@ -1483,9 +1483,11 @@ static void intel_pt_sample_flags(struct intel_pt_queue *ptq)
} else if (ptq->state->flags & INTEL_PT_ASYNC) { } else if (ptq->state->flags & INTEL_PT_ASYNC) {
if (!ptq->state->to_ip) if (!ptq->state->to_ip)
ptq->flags = PERF_IP_FLAG_BRANCH | ptq->flags = PERF_IP_FLAG_BRANCH |
PERF_IP_FLAG_ASYNC |
PERF_IP_FLAG_TRACE_END; PERF_IP_FLAG_TRACE_END;
else if (ptq->state->from_nr && !ptq->state->to_nr) else if (ptq->state->from_nr && !ptq->state->to_nr)
ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
PERF_IP_FLAG_ASYNC |
PERF_IP_FLAG_VMEXIT; PERF_IP_FLAG_VMEXIT;
else else
ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |