perf intel-pt: Fix IPC with CYC threshold

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[ Upstream commit 6af4b60033 ]

The code assumed every CYC-eligible packet has a CYC packet, which is not
the case when CYC thresholds are used. Fix by checking if a CYC packet is
actually present in that case.

Fixes: 5b1dc0fd1d ("perf intel-pt: Add support for samples to contain IPC ratio")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210205175350.23817-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Adrian Hunter 2021-02-05 19:53:49 +02:00 • committed by Greg Kroah-Hartman

parent 4616d95a25

commit 2f7d4603a0

3 changed files with 41 additions and 0 deletions

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tools/perf/util/intel-pt-decoder/intel-pt-decoder.c

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tools/perf/util/intel-pt-decoder/intel-pt-decoder.h

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tools/perf/util/intel-pt.c

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