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Subject[tip:perf/core] perf cs-etm: Add traceID in packet
Commit-ID:  03919e526b29be8d0c77142e008b397a2c089398
Gitweb: https://git.kernel.org/tip/03919e526b29be8d0c77142e008b397a2c089398
Author: Leo Yan <leo.yan@linaro.org>
AuthorDate: Tue, 29 Jan 2019 20:28:40 +0800
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 6 Feb 2019 10:00:40 -0300

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: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu 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: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 2 ++
tools/perf/util/cs-etm-decoder/cs-etm-decoder.h | 1 +
2 files changed, 3 insertions(+)

diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
index cdd38ffd10d2..ba4c623cd8de 100644
--- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
+++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
@@ -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;
diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.h b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.h
index 012b4728a46f..7e6a8850be4a 100644
--- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.h
+++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.h
@@ -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;
};

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