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Commit 03919e52 authored by Leo Yan's avatar Leo Yan Committed by Arnaldo Carvalho de Melo
Browse files

perf cs-etm: Add traceID in packet 



Add traceID in packet, thus we can use traceID to retrieve metadata
pointer from traceID-metadata tuple.

Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
Reviewed-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Robert Walker <robert.walker@arm.com>
Cc: Suzuki K Poulouse <suzuki.poulose@arm.com>
Cc: coresight ml <coresight@lists.linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20190129122842.32041-7-leo.yan@linaro.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 95c6fe97

tools/perf/util/cs-etm-decoder/cs-etm-decoder.c

+2 −0
Original line number Diff line number Diff line
@@ -295,6 +295,7 @@ static void cs_etm_decoder__clear_buffer(struct cs_etm_decoder *decoder) 
		decoder->packet_buffer[i].last_instr_cond = 0;

		decoder->packet_buffer[i].flags = 0;

		decoder->packet_buffer[i].exception_number = UINT32_MAX;

		decoder->packet_buffer[i].trace_chan_id = UINT8_MAX;

		decoder->packet_buffer[i].cpu = INT_MIN;

	}

}
@@ -331,6 +332,7 @@ cs_etm_decoder__buffer_packet(struct cs_etm_decoder *decoder, 
	decoder->packet_buffer[et].last_instr_cond = 0;

	decoder->packet_buffer[et].flags = 0;

	decoder->packet_buffer[et].exception_number = UINT32_MAX;

	decoder->packet_buffer[et].trace_chan_id = trace_chan_id;



	if (decoder->packet_count == MAX_BUFFER - 1)

		return OCSD_RESP_WAIT;

tools/perf/util/cs-etm-decoder/cs-etm-decoder.h

+1 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ struct cs_etm_packet { 
	u8 last_instr_cond;

	u8 last_instr_taken_branch;

	u8 last_instr_size;

	u8 trace_chan_id;

	int cpu;

};