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From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: acme@kernel.org
Cc: suzuki.poulose@arm.com, peterz@infradead.org,
	coresight@lists.linaro.org, linux-kernel@vger.kernel.org,
	alexander.shishkin@linux.intel.com, mingo@redhat.com,
	leo.yan@linaro.org, namhyung@kernel.org, jolsa@redhat.com,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 03/17] perf tools: Configure SWITCH_EVENTS in CPU-wide mode
Date: Fri, 24 May 2019 11:34:54 -0600	[thread overview]
Message-ID: <20190524173508.29044-4-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20190524173508.29044-1-mathieu.poirier@linaro.org>

Ask the perf core to generate an event when processes are swapped in/out of
context.  That way proper action can be taken by the decoding code when
faced with such event.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 tools/perf/arch/arm/util/cs-etm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
index be1e4f20affa..cc7f1cd23b14 100644
--- a/tools/perf/arch/arm/util/cs-etm.c
+++ b/tools/perf/arch/arm/util/cs-etm.c
@@ -257,6 +257,9 @@ static int cs_etm_recording_options(struct auxtrace_record *itr,
 	ptr->evlist = evlist;
 	ptr->snapshot_mode = opts->auxtrace_snapshot_mode;
 
+	if (perf_can_record_switch_events())
+		opts->record_switch_events = true;
+
 	evlist__for_each_entry(evlist, evsel) {
 		if (evsel->attr.type == cs_etm_pmu->type) {
 			if (cs_etm_evsel) {
-- 
2.17.1


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  parent reply	other threads:[~2019-05-24 17:36 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-24 17:34 [PATCH v2 00/17] perf tools: Coresight: Add CPU-wide trace support Mathieu Poirier
2019-05-24 17:34 ` [PATCH v2 01/17] perf tools: Configure contextID tracing in CPU-wide mode Mathieu Poirier
2019-06-07  9:21   ` Suzuki K Poulose
2019-06-07 17:40     ` Mathieu Poirier
2019-06-07 18:20     ` Arnaldo Carvalho de Melo
2019-06-07 19:33       ` Mathieu Poirier
2019-05-24 17:34 ` [PATCH v2 02/17] perf tools: Configure timestsamp generation " Mathieu Poirier
2019-06-07  9:41   ` Suzuki K Poulose
2019-06-07 17:46     ` Mathieu Poirier
2019-06-07 18:34       ` Arnaldo Carvalho de Melo
2019-05-24 17:34 ` Mathieu Poirier [this message]
2019-05-24 17:34 ` [PATCH v2 04/17] perf tools: Add handling of itrace start events Mathieu Poirier
2019-05-24 17:34 ` [PATCH v2 05/17] perf tools: Add handling of switch-CPU-wide events Mathieu Poirier
2019-05-24 17:34 ` [PATCH v2 06/17] perf tools: Refactor error path in cs_etm_decoder__new() Mathieu Poirier
2019-05-24 17:34 ` [PATCH v2 07/17] perf tools: Move packet queue out of decoder structure Mathieu Poirier
2019-05-24 17:34 ` [PATCH v2 08/17] perf tools: Fix indentation in function cs_etm__process_decoder_queue() Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 09/17] perf tools: Introduce the concept of trace ID queues Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 10/17] perf tools: Get rid of unused cpu in struct cs_etm_queue Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 11/17] perf tools: Move thread to traceid_queue Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 12/17] perf tools: Move tid/pid " Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 13/17] perf tools: Use traceID aware memory callback API Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 14/17] perf tools: Add support for multiple traceID queues Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 15/17] perf tools: Linking PE contextID with perf thread mechanic Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 16/17] perf tools: Add notion of time to decoding code Mathieu Poirier
2019-06-06 18:50   ` Arnaldo Carvalho de Melo
2019-06-07 14:38     ` Mathieu Poirier
2019-05-24 17:35 ` [PATCH v2 17/17] perf tools: Add support for CPU-wide trace scenarios Mathieu Poirier
2019-05-31  1:45 ` [PATCH v2 00/17] perf tools: Coresight: Add CPU-wide trace support Leo Yan

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