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From: Leo Yan <leo.yan@linaro.org>
To: "Arnaldo Carvalho de Melo" <acme@kernel.org>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Ingo Molnar" <mingo@redhat.com>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
	"Jiri Olsa" <jolsa@redhat.com>,
	"Namhyung Kim" <namhyung@kernel.org>,
	"John Garry" <john.garry@huawei.com>,
	"Will Deacon" <will@kernel.org>,
	"Mathieu Poirier" <mathieu.poirier@linaro.org>,
	"Kemeng Shi" <shikemeng@huawei.com>,
	"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>,
	"Ian Rogers" <irogers@google.com>, "Al Grant" <Al.Grant@arm.com>,
	"James Clark" <james.clark@arm.com>,
	"Wei Li" <liwei391@huawei.com>,
	"André Przywara" <andre.przywara@arm.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v3 9/9] perf mem: Document event type 'ldst'
Date: Wed, 28 Oct 2020 14:38:13 +0800	[thread overview]
Message-ID: <20201028063813.8562-10-leo.yan@linaro.org> (raw)
In-Reply-To: <20201028063813.8562-1-leo.yan@linaro.org>

The event type 'ldst' is added for recording both load and store memory
operations, this patch documents for the new event type.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 tools/perf/Documentation/perf-mem.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-mem.txt b/tools/perf/Documentation/perf-mem.txt
index 199ea0f0a6c0..c50ef37dba72 100644
--- a/tools/perf/Documentation/perf-mem.txt
+++ b/tools/perf/Documentation/perf-mem.txt
@@ -38,7 +38,11 @@ OPTIONS
 
 -t::
 --type=<type>::
-	Select the memory operation type: load or store (default: load,store)
+	Select the memory operation type: load, store, ldst (default: load,store).
+	The type 'ldst' means the single event can record both for load and store
+	operations; Intel and PowerPC support the types 'load' and 'store' but
+	'ldst' cannot be used; on Arm64, it uses Arm SPE as memory events and
+	user needs to specify one of these three types.
 
 -D::
 --dump-raw-samples::
-- 
2.17.1


  parent reply	other threads:[~2020-10-28 23:29 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-28  6:38 [PATCH v3 0/9] perf mem/c2c: Support AUX trace Leo Yan
2020-10-28  6:38 ` [PATCH v3 1/9] perf mem: Search event name with more flexible path Leo Yan
2020-10-28  6:38 ` [PATCH v3 2/9] perf mem: Introduce weak function perf_mem_events__ptr() Leo Yan
2020-10-28  6:38 ` [PATCH v3 3/9] perf mem: Support new memory event PERF_MEM_EVENTS__LOAD_STORE Leo Yan
2020-10-31 20:23   ` Jiri Olsa
2020-11-02  9:38     ` Leo Yan
2020-10-28  6:38 ` [PATCH v3 4/9] perf mem: Only initialize memory event for recording Leo Yan
2020-10-30  1:04   ` Ian Rogers
2020-10-28  6:38 ` [PATCH v3 5/9] perf mem: Support AUX trace Leo Yan
2020-10-28  6:38 ` [PATCH v3 6/9] perf c2c: " Leo Yan
2020-10-31 20:21   ` Jiri Olsa
2020-11-02 10:08     ` Leo Yan
2020-11-02 16:35       ` Jiri Olsa
2020-10-28  6:38 ` [PATCH v3 7/9] perf mem: Support Arm SPE events Leo Yan
2020-10-28  6:38 ` [PATCH v3 8/9] perf mem: Return NULL for event 'ldst' on PowerPC Leo Yan
2020-10-28  9:35   ` Naveen N. Rao
2020-10-28  6:38 ` Leo Yan [this message]
2020-10-30  1:10   ` [PATCH v3 9/9] perf mem: Document event type 'ldst' Ian Rogers
2020-10-30  1:49     ` Leo Yan

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