linux-kernel - [PATCH v2 3/7] perf report: Add --spe options for arm-spe

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Message-Id: <20200123160734.3775-4-james.clark@arm.com>
Date:   Thu, 23 Jan 2020 16:07:30 +0000
From:   James Clark <james.clark@....com>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     suzuki.poulose@....com, gengdongjiu@...wei.com,
        wxf.wang@...ilicon.com, liwei391@...wei.com,
        liuqi115@...ilicon.com, huawei.libin@...wei.com, nd@....com,
        linux-perf-users@...r.kernel.org,
        Tan Xiaojun <tanxiaojun@...wei.com>,
        James Clark <james.clark@....com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>, Al Grant <al.grant@....com>,
        Namhyung Kim <namhyung@...nel.org>
Subject: [PATCH v2 3/7] perf report: Add --spe options for arm-spe

From: Tan Xiaojun <tanxiaojun@...wei.com>

The previous patch added support in "perf report" for some arm-spe
events(llc-miss, tlb-miss, branch-miss, remote_access). This patch
adds their help instructions.

Signed-off-by: Tan Xiaojun <tanxiaojun@...wei.com>
Tested-by: Qi Liu <liuqi115@...ilicon.com>
Signed-off-by: James Clark <james.clark@....com>
Cc: Will Deacon <will@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Tan Xiaojun <tanxiaojun@...wei.com>
Cc: Al Grant <al.grant@....com>
Cc: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/Documentation/perf-report.txt | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index db61f16ffa56..01eae9a0ff98 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -468,6 +468,16 @@ include::itrace.txt[]
 
 	To disable decoding entirely, use --no-itrace.
 
+--spe::
+	Options for decoding arm-spe tracing data. The options are:
+
+		l	synthesize llc miss events
+		t	synthesize tlb miss events
+		b	synthesize branch miss events
+		r	synthesize remote access events
+
+	The default is all events i.e. the same as --spe=ltbr
+
 --full-source-path::
 	Show the full path for source files for srcline output.
 
-- 
2.25.0