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From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>,
	Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org, kan.liang@linux.intel.com,
	Adrian Hunter <adrian.hunter@intel.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>
Subject: [PATCH v3 6/7] perf tools: Add aux-source config term
Date: Wed, 31 Jul 2019 17:30:40 +0300	[thread overview]
Message-ID: <20190731143041.64678-7-alexander.shishkin@linux.intel.com> (raw)
In-Reply-To: <20190731143041.64678-1-alexander.shishkin@linux.intel.com>

From: Adrian Hunter <adrian.hunter@intel.com>

Expose the aux_source attribute flag to the user to configure, by adding a
config term 'aux-source'. For events that support it, selection of
'aux-source' causes the generation of AUX records instead of event records.
This requires that an AUX area event is also provided.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
---
 tools/perf/Documentation/perf-record.txt | 2 ++
 tools/perf/util/evsel.c                  | 3 +++
 tools/perf/util/evsel.h                  | 2 ++
 tools/perf/util/parse-events.c           | 8 ++++++++
 tools/perf/util/parse-events.h           | 1 +
 tools/perf/util/parse-events.l           | 1 +
 6 files changed, 17 insertions(+)

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 15e0fa87241b..3077f6373dff 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -60,6 +60,8 @@ OPTIONS
 	  - 'name' : User defined event name. Single quotes (') may be used to
 		    escape symbols in the name from parsing by shell and tool
 		    like this: name=\'CPU_CLK_UNHALTED.THREAD:cmask=0x1\'.
+	  - 'aux-source': Generate AUX records instead of events. This requires
+			  that an AUX area event is also provided.
 
           See the linkperf:perf-list[1] man page for more parameters.
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 0aa44d8e4159..7de7bc66f0f4 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -832,6 +832,9 @@ static void apply_config_terms(struct perf_evsel *evsel,
 			break;
 		case PERF_EVSEL__CONFIG_TERM_PERCORE:
 			break;
+		case PERF_EVSEL__CONFIG_TERM_AUX_SOURCE:
+			attr->aux_source = term->val.aux_source ? 1 : 0;
+			break;
 		default:
 			break;
 		}
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index cad54e8ba522..295d32fd42ba 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -51,6 +51,7 @@ enum term_type {
 	PERF_EVSEL__CONFIG_TERM_DRV_CFG,
 	PERF_EVSEL__CONFIG_TERM_BRANCH,
 	PERF_EVSEL__CONFIG_TERM_PERCORE,
+	PERF_EVSEL__CONFIG_TERM_AUX_SOURCE,
 };
 
 struct perf_evsel_config_term {
@@ -69,6 +70,7 @@ struct perf_evsel_config_term {
 		char	*branch;
 		unsigned long max_events;
 		bool	percore;
+		bool	aux_source;
 	} val;
 	bool weak;
 };
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 371ff3aee769..3b54fecf6561 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -952,6 +952,7 @@ static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
 	[PARSE_EVENTS__TERM_TYPE_NOOVERWRITE]		= "no-overwrite",
 	[PARSE_EVENTS__TERM_TYPE_DRV_CFG]		= "driver-config",
 	[PARSE_EVENTS__TERM_TYPE_PERCORE]		= "percore",
+	[PARSE_EVENTS__TERM_TYPE_AUX_SOURCE]		= "aux-source",
 };
 
 static bool config_term_shrinked;
@@ -1072,6 +1073,9 @@ do {									   \
 			return -EINVAL;
 		}
 		break;
+	case PARSE_EVENTS__TERM_TYPE_AUX_SOURCE:
+		CHECK_TYPE_VAL(NUM);
+		break;
 	default:
 		err->str = strdup("unknown term");
 		err->idx = term->err_term;
@@ -1122,6 +1126,7 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
 	case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
 	case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
 	case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
+	case PARSE_EVENTS__TERM_TYPE_AUX_SOURCE:
 		return config_term_common(attr, term, err);
 	default:
 		if (err) {
@@ -1214,6 +1219,9 @@ do {								\
 			ADD_CONFIG_TERM(PERCORE, percore,
 					term->val.num ? true : false);
 			break;
+		case PARSE_EVENTS__TERM_TYPE_AUX_SOURCE:
+			ADD_CONFIG_TERM(AUX_SOURCE, aux_source, term->val.num ? 1 : 0);
+			break;
 		default:
 			break;
 		}
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index f7139e1a2fd3..782195ce8238 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -76,6 +76,7 @@ enum {
 	PARSE_EVENTS__TERM_TYPE_OVERWRITE,
 	PARSE_EVENTS__TERM_TYPE_DRV_CFG,
 	PARSE_EVENTS__TERM_TYPE_PERCORE,
+	PARSE_EVENTS__TERM_TYPE_AUX_SOURCE,
 	__PARSE_EVENTS__TERM_TYPE_NR,
 };
 
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index ca6098874fe2..399605a64c3d 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -284,6 +284,7 @@ no-inherit		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
 overwrite		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
 no-overwrite		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
 percore			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); }
+aux-source		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_SOURCE); }
 ,			{ return ','; }
 "/"			{ BEGIN(INITIAL); return '/'; }
 {name_minus}		{ return str(yyscanner, PE_NAME); }
-- 
2.20.1


  parent reply	other threads:[~2019-07-31 14:31 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-31 14:30 [PATCH v3 0/7] perf, intel: Add support for PEBS output to Intel PT Alexander Shishkin
2019-07-31 14:30 ` [PATCH v3 1/7] perf: Allow normal events to be sources of AUX data Alexander Shishkin
2019-07-31 16:16   ` Peter Zijlstra
2019-07-31 16:21   ` Peter Zijlstra
2019-07-31 14:30 ` [PATCH v3 2/7] perf/x86/intel: Support PEBS output to PT Alexander Shishkin
2019-07-31 16:50   ` Peter Zijlstra
2019-07-31 14:30 ` [PATCH v3 3/7] perf tools: Add aux_source attribute flag Alexander Shishkin
2019-07-31 14:30 ` [PATCH v3 4/7] perf tools: Add itrace option 'o' to synthesize aux-source events Alexander Shishkin
2019-07-31 14:30 ` [PATCH v3 5/7] perf intel-pt: Process options for PEBS event synthesis Alexander Shishkin
2019-07-31 14:30 ` Alexander Shishkin [this message]
2019-07-31 14:30 ` [PATCH v3 7/7] perf intel-pt: Add brief documentation for PEBS via Intel PT Alexander Shishkin

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