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29 July 2024, 15:18:00 UTC
Revision 27d113cfe892867885ab1d75abe5f42c228ef8a9 authored by German Gomez on 11 November 2021, 13:36:25 UTC, committed by Arnaldo Carvalho de Melo on 13 November 2021, 21:11:51 UTC 
perf arm-spe: Support hardware-based PID tracing
 
If ARM SPE traces contains CONTEXT packets with TID info, use these
values for tracking the TID of samples. Otherwise fall back to using
context switch events and display a message warning to the user of
possible timing inaccuracies [1].

[1] https://lore.kernel.org/lkml/f877cfa6-9b25-6445-3806-ca44a4042eaf@arm.com/

Signed-off-by: German Gomez <german.gomez@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20211111133625.193568-5-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
1 parent 169de64
History
Tip revision: 27d113cfe892867885ab1d75abe5f42c228ef8a9 authored by German Gomez on 11 November 2021, 13:36:25 UTC
perf arm-spe: Support hardware-based PID tracing
Tip revision: 27d113c
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