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perf intel-pt: Add MTC and CYC timestamps to debug log

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One cause of decoding errors is un-synchronized side-band data.
Timestamps are needed to debug such cases. TSC packet timestamps are
logged. Log also MTC and CYC timestamps.

Signed-off-by: Adrian Hunter <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Adrian Hunter 2018-11-05 09:35:05 +02:00 • committed by Arnaldo Carvalho de Melo
commit f6c23e3b55
1 changed files with 4 additions and 0 deletions
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4
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
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@ -1474,6 +1474,8 @@ static void intel_pt_calc_mtc_timestamp(struct intel_pt_decoder *decoder)
decoder->have_calc_cyc_to_tsc = false;
intel_pt_calc_cyc_to_tsc(decoder, true);
}
intel_pt_log_to("Setting timestamp", decoder->timestamp);
}
static void intel_pt_calc_cbr(struct intel_pt_decoder *decoder)
@ -1514,6 +1516,8 @@ static void intel_pt_calc_cyc_timestamp(struct intel_pt_decoder *decoder)
decoder->timestamp = timestamp;
decoder->timestamp_insn_cnt = 0;
intel_pt_log_to("Setting timestamp", decoder->timestamp);
}
/* Walk PSB+ packets when already in sync. */