perf intel-pt: Add MTC and CYC timestamps to debug log
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 <adrian.hunter@intel.com> Link: http://lkml.kernel.org/r/20181105073505.8129-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -1474,6 +1474,8 @@ static void intel_pt_calc_mtc_timestamp(struct intel_pt_decoder *decoder)
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decoder->have_calc_cyc_to_tsc = false;
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intel_pt_calc_cyc_to_tsc(decoder, true);
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}
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intel_pt_log_to("Setting timestamp", decoder->timestamp);
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}
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static void intel_pt_calc_cbr(struct intel_pt_decoder *decoder)
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@ -1514,6 +1516,8 @@ static void intel_pt_calc_cyc_timestamp(struct intel_pt_decoder *decoder)
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decoder->timestamp = timestamp;
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decoder->timestamp_insn_cnt = 0;
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intel_pt_log_to("Setting timestamp", decoder->timestamp);
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}
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/* Walk PSB+ packets when already in sync. */
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