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| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-05-24 20:35:00 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-06-10 21:50:02 +0300 |
| commit | c7bfa2fd0da966bf83061102fbe1e7b974e81764 (patch) | |
| tree | 0514b048482f0e240baec5e4685a7ad62f61c5bb /tools/perf/util/cs-etm-decoder | |
| parent | 882f4874ad74c528c3437c9c8783310b073323a1 (diff) | |
| download | linux-c7bfa2fd0da966bf83061102fbe1e7b974e81764.tar.xz | |
perf cs-etm: Introduce the concept of trace ID queues
In an ideal world there is one CPU per cs_etm_queue and as such, one
trace ID per cs_etm_queue. In the real world CoreSight topologies allow
multiple CPUs to use the same sink, which translates to multiple trace
IDs per cs_etm_queue.
To deal with this a new cs_etm_traceid_queue structure is introduced to
enclose all the information related to a single trace ID, allowing a
cs_etm_queue to handle traces generated by any number of CPUs.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20190524173508.29044-10-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cs-etm-decoder')
| -rw-r--r-- | tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 4 |
1 files changed, 2 insertions, 2 deletions
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 3ac238e58901..4303d2d00d31 100644 --- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c +++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c @@ -413,8 +413,8 @@ static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer( struct cs_etm_queue *etmq = decoder->data; struct cs_etm_packet_queue *packet_queue; - /* First get the packet queue */ - packet_queue = cs_etm__etmq_get_packet_queue(etmq); + /* First get the packet queue for this traceID */ + packet_queue = cs_etm__etmq_get_packet_queue(etmq, trace_chan_id); if (!packet_queue) return OCSD_RESP_FATAL_SYS_ERR; |