linux-kernel - [PATCH v5 3/4] perf report: Add SPE options to --itrace argument

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Date:   Tue, 25 Feb 2020 11:57:38 +0000
From:   James Clark <james.clark@....com>
To:     adrian.hunter@...el.com, jolsa@...hat.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     nd@....com, 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>,
        Al Grant <al.grant@....com>, Namhyung Kim <namhyung@...nel.org>
Subject: [PATCH v5 3/4] perf report: Add SPE options to --itrace argument

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/itrace.txt | 5 ++++-
 tools/perf/util/auxtrace.h          | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt
index 82ff7dad40c2..da3e5ccc039e 100644
--- a/tools/perf/Documentation/itrace.txt
+++ b/tools/perf/Documentation/itrace.txt
@@ -1,5 +1,5 @@
 		i	synthesize instructions events
-		b	synthesize branches events
+		b	synthesize branches events (branch misses on Arm)
 		c	synthesize branches events (calls only)
 		r	synthesize branches events (returns only)
 		x	synthesize transactions events
@@ -9,6 +9,9 @@
 			of aux-output (refer to perf record)
 		e	synthesize error events
 		d	create a debug log
+		m	synthesize LLC miss events
+		t	synthesize TLB miss events
+		a	synthesize remote access events
 		g	synthesize a call chain (use with i or x)
 		l	synthesize last branch entries (use with i or x)
 		s       skip initial number of events
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 80617b0d044d..52e148eea7f8 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -587,7 +587,7 @@ void auxtrace__free(struct perf_session *session);
 
 #define ITRACE_HELP \
 "				i:	    		synthesize instructions events\n"		\
-"				b:	    		synthesize branches events\n"		\
+"				b:	    		synthesize branches events (branch misses on Arm)\n" \
 "				c:	    		synthesize branches events (calls only)\n"	\
 "				r:	    		synthesize branches events (returns only)\n" \
 "				x:	    		synthesize transactions events\n"		\
@@ -595,6 +595,9 @@ void auxtrace__free(struct perf_session *session);
 "				p:	    		synthesize power events\n"			\
 "				e:	    		synthesize error events\n"			\
 "				d:	    		create a debug log\n"			\
+"				m:	    		synthesize LLC miss events\n" \
+"				t:	    		synthesize TLB miss events\n" \
+"				a:	    		synthesize remote access events\n" \
 "				g[len]:     		synthesize a call chain (use with i or x)\n" \
 "				l[len]:     		synthesize last branch entries (use with i or x)\n" \
 "				sNUMBER:    		skip initial number of events\n"		\
-- 
2.17.1