diff options
| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-02-20 13:43:36 -0700 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2019-05-23 16:58:58 -0600 |
| commit | bf4dbd41f979cdbe4b1fd17475793203c19d707d (patch) | |
| tree | b34030e8d350c00629a265c229fd5e48f8cf19a9 /tools/perf/util/cs-etm.c | |
| parent | 7d66ec8eb0b4862d0964757e47ab324f5b6908c1 (diff) | |
perf tools: Add notion of time to decoding code
This patch deals with timestamp packets received from the decoding library
in order to give the front end packet processing loop a handle on the time
instruction conveyed by range packets have been executed at.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'tools/perf/util/cs-etm.c')
| -rw-r--r-- | tools/perf/util/cs-etm.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 17adf554b679..91496a3a2209 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -80,6 +80,7 @@ struct cs_etm_queue { struct cs_etm_decoder *decoder; struct auxtrace_buffer *buffer; unsigned int queue_nr; + u8 pending_timestamp; u64 offset; const unsigned char *buf; size_t buf_len, buf_used; @@ -133,6 +134,19 @@ int cs_etm__get_cpu(u8 trace_chan_id, int *cpu) return 0; } +void cs_etm__etmq_set_traceid_queue_timestamp(struct cs_etm_queue *etmq, + u8 trace_chan_id) +{ + /* + * Wnen a timestamp packet is encountered the backend code + * is stopped so that the front end has time to process packets + * that were accumulated in the traceID queue. Since there can + * be more than one channel per cs_etm_queue, we need to specify + * what traceID queue needs servicing. + */ + etmq->pending_timestamp = trace_chan_id; +} + static void cs_etm__clear_packet_queue(struct cs_etm_packet_queue *queue) { int i; @@ -942,6 +956,11 @@ int cs_etm__etmq_set_tid(struct cs_etm_queue *etmq, return 0; } +bool cs_etm__etmq_is_timeless(struct cs_etm_queue *etmq) +{ + return !!etmq->etm->timeless_decoding; +} + static int cs_etm__synth_instruction_sample(struct cs_etm_queue *etmq, struct cs_etm_traceid_queue *tidq, u64 addr, u64 period) |