Commit f6c23e3b authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

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: default avatarAdrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/20181105073505.8129-3-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 93f8be27

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

+4 −0
Original line number Diff line number Diff line
@@ -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. */

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