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perf tools: Add coresight etm PMU record capabilities

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Coresight ETMs are IP blocks used to perform HW assisted tracing on a
CPU core.  This patch introduce the required auxiliary API functions
allowing the perf core to interact with a tracer.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1474041004-13956-4-git-send-email-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Mathieu Poirier
2016-09-16 09:50:00 -06:00
committed by Arnaldo Carvalho de Melo
parent 7e21b0d579
commit a818c563ae
9 changed files with 720 additions and 2 deletions
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tools/perf/util/auxtrace.c
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@@ -892,6 +892,7 @@ int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
return intel_pt_process_auxtrace_info(event, session);
case PERF_AUXTRACE_INTEL_BTS:
return intel_bts_process_auxtrace_info(event, session);
case PERF_AUXTRACE_CS_ETM:
case PERF_AUXTRACE_UNKNOWN:
default:
return -EINVAL;