From: Leo Yan <leo.yan@linaro.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Coresight ML <coresight@lists.linaro.org>
Cc: Robert Walker <robert.walker@arm.com>,
Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v2 5/6] perf cs-etm: Treat EO_TRACE element as trace discontinuity
Date: Mon, 10 Dec 2018 16:53:00 +0800 [thread overview]
Message-ID: <1544431981-24144-6-git-send-email-leo.yan@linaro.org> (raw)
In-Reply-To: <1544431981-24144-1-git-send-email-leo.yan@linaro.org>
If decoder outputs EO_TRACE element, it means the end of the trace
buffer; this is a discontinuity and in this case the end of trace data
needs to be saved.
This patch generates CS_ETM_DISCONTINUITY packet for EO_TRACE element
hereby flushing the end of trace data in cs-etm.c.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Robert Walker <robert.walker@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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 46b67f1..bcb5c98 100644
--- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
+++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
@@ -411,6 +411,7 @@ static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer(
case OCSD_GEN_TRC_ELEM_UNKNOWN:
break;
case OCSD_GEN_TRC_ELEM_NO_SYNC:
+ case OCSD_GEN_TRC_ELEM_EO_TRACE:
resp = cs_etm_decoder__buffer_discontinuity(decoder,
trace_chan_id);
decoder->trace_on = false;
@@ -431,7 +432,6 @@ static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer(
decoder->packet_buffer[decoder->tail].exc_ret = true;
break;
case OCSD_GEN_TRC_ELEM_PE_CONTEXT:
- case OCSD_GEN_TRC_ELEM_EO_TRACE:
case OCSD_GEN_TRC_ELEM_ADDR_NACC:
case OCSD_GEN_TRC_ELEM_TIMESTAMP:
case OCSD_GEN_TRC_ELEM_CYCLE_COUNT:
--
2.7.4
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next prev parent reply other threads:[~2018-12-10 8:55 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-10 8:52 [PATCH v2 0/6] perf cs-etm: Correct packets handling Leo Yan
2018-12-10 8:52 ` [PATCH v2 1/6] perf cs-etm: Correct packets swapping in cs_etm__flush() Leo Yan
2018-12-10 8:52 ` [PATCH v2 2/6] perf cs-etm: Avoid stale branch samples when flush packet Leo Yan
2018-12-10 22:48 ` Mathieu Poirier
2018-12-10 8:52 ` [PATCH v2 3/6] perf cs-etm: Rename CS_ETM_TRACE_ON to CS_ETM_DISCONTINUITY Leo Yan
2018-12-10 22:51 ` Mathieu Poirier
2018-12-10 8:52 ` [PATCH v2 4/6] perf cs-etm: Treat NO_SYNC element as trace discontinuity Leo Yan
2018-12-10 22:53 ` Mathieu Poirier
2018-12-10 8:53 ` Leo Yan [this message]
2018-12-10 23:04 ` [PATCH v2 5/6] perf cs-etm: Treat EO_TRACE " Mathieu Poirier
2018-12-11 0:39 ` leo.yan
2018-12-10 8:53 ` [PATCH v2 6/6] perf cs-etm: Generate branch sample for exception packet Leo Yan
2018-12-10 23:07 ` Mathieu Poirier
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