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From: Ian Rogers <irogers@google.com>
To: Andi Kleen <ak@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>,
	Namhyung Kim <namhyung@kernel.org>,
	John Garry <john.garry@huawei.com>,
	Kajol Jain <kjain@linux.ibm.com>,
	"Paul A . Clarke" <pc@us.ibm.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Riccardo Mancini <rickyman7@gmail.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	Vineet Singh <vineet.singh@intel.com>,
	James Clark <james.clark@arm.com>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>,
	coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org
Cc: eranian@google.com, Ian Rogers <irogers@google.com>
Subject: [PATCH v2 05/48] perf stat: Switch to cpu version of cpu_map__get
Date: Wed, 22 Dec 2021 23:44:58 -0800	[thread overview]
Message-ID: <20211223074541.3318938-6-irogers@google.com> (raw)
In-Reply-To: <20211223074541.3318938-1-irogers@google.com>

Avoid bugs where the wrong index is passed with the cpu_map.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/builtin-stat.c      | 93 +++++++++++++++++++---------------
 tools/perf/util/stat-display.c | 11 ++--
 tools/perf/util/stat.h         |  3 +-
 3 files changed, 57 insertions(+), 50 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index f6ca2b054c5b..9791ae9b1a53 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1323,69 +1323,63 @@ static struct option stat_options[] = {
 };
 
 static struct aggr_cpu_id perf_stat__get_socket(struct perf_stat_config *config __maybe_unused,
-				 struct perf_cpu_map *map, int cpu)
+						int cpu)
 {
-	return cpu_map__get_socket(map, cpu, NULL);
+	return cpu_map__get_socket_aggr_by_cpu(cpu, /*data=*/NULL);
 }
 
 static struct aggr_cpu_id perf_stat__get_die(struct perf_stat_config *config __maybe_unused,
-			      struct perf_cpu_map *map, int cpu)
+					     int cpu)
 {
-	return cpu_map__get_die(map, cpu, NULL);
+	return cpu_map__get_die_aggr_by_cpu(cpu, /*data=*/NULL);
 }
 
 static struct aggr_cpu_id perf_stat__get_core(struct perf_stat_config *config __maybe_unused,
-			       struct perf_cpu_map *map, int cpu)
+					      int cpu)
 {
-	return cpu_map__get_core(map, cpu, NULL);
+	return cpu_map__get_core_aggr_by_cpu(cpu, /*data=*/NULL);
 }
 
 static struct aggr_cpu_id perf_stat__get_node(struct perf_stat_config *config __maybe_unused,
-			       struct perf_cpu_map *map, int cpu)
+					      int cpu)
 {
-	return cpu_map__get_node(map, cpu, NULL);
+	return cpu_map__get_node_aggr_by_cpu(cpu, /*data=*/NULL);
 }
 
 static struct aggr_cpu_id perf_stat__get_aggr(struct perf_stat_config *config,
-			       aggr_get_id_t get_id, struct perf_cpu_map *map, int idx)
+					      aggr_get_id_t get_id, int cpu)
 {
-	int cpu;
 	struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id();
 
-	if (idx >= map->nr)
-		return id;
-
-	cpu = map->map[idx];
-
 	if (cpu_map__aggr_cpu_id_is_empty(config->cpus_aggr_map->map[cpu]))
-		config->cpus_aggr_map->map[cpu] = get_id(config, map, idx);
+		config->cpus_aggr_map->map[cpu] = get_id(config, cpu);
 
 	id = config->cpus_aggr_map->map[cpu];
 	return id;
 }
 
 static struct aggr_cpu_id perf_stat__get_socket_cached(struct perf_stat_config *config,
-					struct perf_cpu_map *map, int idx)
+						       int cpu)
 {
-	return perf_stat__get_aggr(config, perf_stat__get_socket, map, idx);
+	return perf_stat__get_aggr(config, perf_stat__get_socket, cpu);
 }
 
 static struct aggr_cpu_id perf_stat__get_die_cached(struct perf_stat_config *config,
-					struct perf_cpu_map *map, int idx)
+						    int cpu)
 {
-	return perf_stat__get_aggr(config, perf_stat__get_die, map, idx);
+	return perf_stat__get_aggr(config, perf_stat__get_die, cpu);
 }
 
 static struct aggr_cpu_id perf_stat__get_core_cached(struct perf_stat_config *config,
-				      struct perf_cpu_map *map, int idx)
+						     int cpu)
 {
-	return perf_stat__get_aggr(config, perf_stat__get_core, map, idx);
+	return perf_stat__get_aggr(config, perf_stat__get_core, cpu);
 }
 
 static struct aggr_cpu_id perf_stat__get_node_cached(struct perf_stat_config *config,
-				      struct perf_cpu_map *map, int idx)
+						     int cpu)
 {
-	return perf_stat__get_aggr(config, perf_stat__get_node, map, idx);
+	return perf_stat__get_aggr(config, perf_stat__get_node, cpu);
 }
 
 static bool term_percore_set(void)
@@ -1483,8 +1477,9 @@ static void perf_stat__exit_aggr_mode(void)
 	stat_config.cpus_aggr_map = NULL;
 }
 
-static inline int perf_env__get_cpu(struct perf_env *env, struct perf_cpu_map *map, int idx)
+static inline int perf_env__get_cpu(void *data, struct perf_cpu_map *map, int idx)
 {
+	struct perf_env *env = data;
 	int cpu;
 
 	if (idx > map->nr)
@@ -1498,10 +1493,9 @@ static inline int perf_env__get_cpu(struct perf_env *env, struct perf_cpu_map *m
 	return cpu;
 }
 
-static struct aggr_cpu_id perf_env__get_socket(struct perf_cpu_map *map, int idx, void *data)
+static struct aggr_cpu_id perf_env__get_socket_aggr_by_cpu(int cpu, void *data)
 {
 	struct perf_env *env = data;
-	int cpu = perf_env__get_cpu(env, map, idx);
 	struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id();
 
 	if (cpu != -1)
@@ -1510,11 +1504,15 @@ static struct aggr_cpu_id perf_env__get_socket(struct perf_cpu_map *map, int idx
 	return id;
 }
 
-static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, void *data)
+static struct aggr_cpu_id perf_env__get_socket(struct perf_cpu_map *map, int idx, void *data)
+{
+	return perf_env__get_socket_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
+}
+
+static struct aggr_cpu_id perf_env__get_die_aggr_by_cpu(int cpu, void *data)
 {
 	struct perf_env *env = data;
 	struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id();
-	int cpu = perf_env__get_cpu(env, map, idx);
 
 	if (cpu != -1) {
 		/*
@@ -1529,11 +1527,15 @@ static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, v
 	return id;
 }
 
-static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx, void *data)
+static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, void *data)
+{
+	return perf_env__get_die_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
+}
+
+static struct aggr_cpu_id perf_env__get_core_aggr_by_cpu(int cpu, void *data)
 {
 	struct perf_env *env = data;
 	struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id();
-	int cpu = perf_env__get_cpu(env, map, idx);
 
 	if (cpu != -1) {
 		/*
@@ -1549,15 +1551,24 @@ static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx,
 	return id;
 }
 
-static struct aggr_cpu_id perf_env__get_node(struct perf_cpu_map *map, int idx, void *data)
+static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx, void *data)
+{
+	return perf_env__get_core_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
+}
+
+static struct aggr_cpu_id perf_env__get_node_aggr_by_cpu(int cpu, void *data)
 {
-	int cpu = perf_env__get_cpu(data, map, idx);
 	struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id();
 
 	id.node = perf_env__numa_node(data, cpu);
 	return id;
 }
 
+static struct aggr_cpu_id perf_env__get_node(struct perf_cpu_map *map, int idx, void *data)
+{
+	return perf_env__get_node_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
+}
+
 static int perf_env__build_socket_map(struct perf_env *env, struct perf_cpu_map *cpus,
 				      struct cpu_aggr_map **sockp)
 {
@@ -1583,26 +1594,26 @@ static int perf_env__build_node_map(struct perf_env *env, struct perf_cpu_map *c
 }
 
 static struct aggr_cpu_id perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused,
-				      struct perf_cpu_map *map, int idx)
+						     int cpu)
 {
-	return perf_env__get_socket(map, idx, &perf_stat.session->header.env);
+	return perf_env__get_socket_aggr_by_cpu(cpu, &perf_stat.session->header.env);
 }
 static struct aggr_cpu_id perf_stat__get_die_file(struct perf_stat_config *config __maybe_unused,
-				   struct perf_cpu_map *map, int idx)
+						  int cpu)
 {
-	return perf_env__get_die(map, idx, &perf_stat.session->header.env);
+	return perf_env__get_die_aggr_by_cpu(cpu, &perf_stat.session->header.env);
 }
 
 static struct aggr_cpu_id perf_stat__get_core_file(struct perf_stat_config *config __maybe_unused,
-				    struct perf_cpu_map *map, int idx)
+						   int cpu)
 {
-	return perf_env__get_core(map, idx, &perf_stat.session->header.env);
+	return perf_env__get_core_aggr_by_cpu(cpu, &perf_stat.session->header.env);
 }
 
 static struct aggr_cpu_id perf_stat__get_node_file(struct perf_stat_config *config __maybe_unused,
-				    struct perf_cpu_map *map, int idx)
+						   int cpu)
 {
-	return perf_env__get_node(map, idx, &perf_stat.session->header.env);
+	return perf_env__get_node_aggr_by_cpu(cpu, &perf_stat.session->header.env);
 }
 
 static int perf_stat_init_aggr_mode_file(struct perf_stat *st)
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index efab39a759ff..6c40b91d5e32 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -341,8 +341,7 @@ static int first_shadow_cpu(struct perf_stat_config *config,
 
 	cpus = evsel__cpus(evsel);
 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
-		if (cpu_map__compare_aggr_cpu_id(config->aggr_get_id(config, cpus, idx),
-						 id))
+		if (cpu_map__compare_aggr_cpu_id(config->aggr_get_id(config, cpu), id))
 			return cpu;
 	}
 	return 0;
@@ -525,8 +524,7 @@ static void aggr_update_shadow(struct perf_stat_config *config,
 			cpus = evsel__cpus(counter);
 			val = 0;
 			perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
-				(void)cpu;
-				s2 = config->aggr_get_id(config, cpus, idx);
+				s2 = config->aggr_get_id(config, cpu);
 				if (!cpu_map__compare_aggr_cpu_id(s2, id))
 					continue;
 				val += perf_counts(counter->counts, idx, 0)->val;
@@ -642,8 +640,7 @@ static void aggr_cb(struct perf_stat_config *config,
 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
 		struct perf_counts_values *counts;
 
-		(void)cpu;
-		s2 = config->aggr_get_id(config, cpus, idx);
+		s2 = config->aggr_get_id(config, cpu);
 		if (!cpu_map__compare_aggr_cpu_id(s2, ad->id))
 			continue;
 		if (first)
@@ -1217,7 +1214,7 @@ static void print_percore_thread(struct perf_stat_config *config,
 
 	cpus = evsel__cpus(counter);
 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
-		s2 = config->aggr_get_id(config, cpus, idx);
+		s2 = config->aggr_get_id(config, cpu);
 		for (s = 0; s < config->aggr_map->nr; s++) {
 			id = config->aggr_map->map[s];
 			if (cpu_map__compare_aggr_cpu_id(s2, id))
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 32c8527de347..32cf24186229 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -108,8 +108,7 @@ struct runtime_stat {
 	struct rblist value_list;
 };
 
-typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config,
-			     struct perf_cpu_map *m, int cpu);
+typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, int cpu);
 
 struct perf_stat_config {
 	enum aggr_mode		 aggr_mode;
-- 
2.34.1.307.g9b7440fafd-goog


  parent reply	other threads:[~2021-12-23  7:46 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-23  7:44 [PATCH v2 00/48] Refactor perf cpumap Ian Rogers
2021-12-23  7:44 ` [PATCH v2 01/48] libperf: Add comments to perf_cpu_map Ian Rogers
2021-12-23  7:44 ` [PATCH v2 02/48] perf stat: Add aggr creators that are passed a cpu Ian Rogers
2021-12-23  7:44 ` [PATCH v2 03/48] perf stat: Correct aggregation CPU map Ian Rogers
2021-12-23  7:44 ` [PATCH v2 04/48] perf stat: Switch aggregation to use for_each loop Ian Rogers
2021-12-23  7:44 ` Ian Rogers [this message]
2021-12-23  7:44 ` [PATCH v2 06/48] perf cpumap: Switch cpu_map__build_map to cpu function Ian Rogers
2021-12-23  7:45 ` [PATCH v2 07/48] perf cpumap: Remove map+index get_socket Ian Rogers
2021-12-23  7:45 ` [PATCH v2 08/48] perf cpumap: Remove map+index get_die Ian Rogers
2021-12-23  7:45 ` [PATCH v2 09/48] perf cpumap: Remove map+index get_core Ian Rogers
2021-12-23  7:45 ` [PATCH v2 10/48] perf cpumap: Remove map+index get_node Ian Rogers
2021-12-23  7:45 ` [PATCH v2 11/48] perf cpumap: Add comments to aggr_cpu_id Ian Rogers
2021-12-23  7:45 ` [PATCH v2 12/48] perf cpumap: Remove unused cpu_map__socket Ian Rogers
2021-12-23  7:45 ` [PATCH v2 13/48] perf cpumap: Simplify equal function name Ian Rogers
2021-12-23  7:45 ` [PATCH v2 14/48] perf cpumap: Rename empty functions Ian Rogers
2021-12-23  7:45 ` [PATCH v2 15/48] perf cpumap: Document cpu__get_node and remove redundant function Ian Rogers
2021-12-23  7:45 ` [PATCH v2 16/48] perf cpumap: Remove map from function names that don't use a map Ian Rogers
2021-12-23  7:45 ` [PATCH v2 17/48] perf cpumap: Remove cpu_map__cpu, use libperf function Ian Rogers
2021-12-23  7:45 ` [PATCH v2 18/48] perf cpumap: Refactor cpu_map__build_map Ian Rogers
2021-12-23  7:45 ` [PATCH v2 19/48] perf cpumap: Rename cpu_map__get_X_aggr_by_cpu functions Ian Rogers
2021-12-23  7:45 ` [PATCH v2 20/48] perf cpumap: Move 'has' function to libperf Ian Rogers
2021-12-28 23:48   ` Namhyung Kim
2021-12-23  7:45 ` [PATCH v2 21/48] perf cpumap: Add some comments to cpu_aggr_map Ian Rogers
2021-12-23  7:45 ` [PATCH v2 22/48] perf cpumap: Trim the cpu_aggr_map Ian Rogers
2021-12-28 23:54   ` Namhyung Kim
2021-12-23  7:45 ` [PATCH v2 23/48] perf stat: Fix memory leak in check_per_pkg Ian Rogers
2021-12-23  7:45 ` [PATCH v2 24/48] perf cpumap: Add CPU to aggr_cpu_id Ian Rogers
2021-12-29  0:02   ` Namhyung Kim
2021-12-23  7:45 ` [PATCH v2 25/48] perf stat-display: Avoid use of core for CPU Ian Rogers
2021-12-29  0:09   ` Namhyung Kim
2021-12-30  6:22     ` Ian Rogers
2021-12-23  7:45 ` [PATCH v2 26/48] perf evsel: Derive CPUs and threads in alloc_counts Ian Rogers
2021-12-29  0:18   ` Namhyung Kim
2021-12-23  7:45 ` [PATCH v2 27/48] libperf: Switch cpu to more accurate cpu_map_idx Ian Rogers
2021-12-23  7:45 ` [PATCH v2 28/48] libperf: Use cpu not index for evsel mmap Ian Rogers
2021-12-23  7:45 ` [PATCH v2 29/48] perf counts: Switch name cpu to cpu_map_idx Ian Rogers
2021-12-23  7:45 ` [PATCH v2 30/48] perf stat: Rename aggr_data cpu to imply it's an index Ian Rogers
2021-12-29  0:36   ` Namhyung Kim
2021-12-23  7:45 ` [PATCH v2 31/48] perf stat: Use perf_cpu_map__for_each_cpu Ian Rogers
2021-12-23  7:45 ` [PATCH v2 32/48] perf script: Use for each cpu to aid readability Ian Rogers
2021-12-23  7:45 ` [PATCH v2 33/48] libperf: Allow NULL in perf_cpu_map__idx Ian Rogers
2021-12-23  7:45 ` [PATCH v2 34/48] perf evlist: Refactor evlist__for_each_cpu Ian Rogers
2021-12-29  0:58   ` Namhyung Kim
2021-12-30 16:10     ` Ian Rogers
2021-12-23  7:45 ` [PATCH v2 35/48] perf evsel: Pass cpu not cpu map index to synthesize Ian Rogers
2021-12-23  7:45 ` [PATCH v2 36/48] perf stat: Correct variable name for read counter Ian Rogers
2021-12-23  7:45 ` [PATCH v2 37/48] perf evsel: Rename CPU around get_group_fd Ian Rogers
2021-12-23  7:45 ` [PATCH v2 38/48] perf evsel: Reduce scope of evsel__ignore_missing_thread Ian Rogers
2021-12-23  7:45 ` [PATCH v2 39/48] perf evsel: Rename variable cpu to index Ian Rogers
2021-12-23  7:45 ` [PATCH v2 40/48] perf test: Use perf_cpu_map__for_each_cpu Ian Rogers
2021-12-23  7:45 ` [PATCH v2 41/48] perf stat: Correct check_per_pkg cpu Ian Rogers
2021-12-23  7:45 ` [PATCH v2 42/48] perf stat: Swap variable name cpu to index Ian Rogers
2021-12-23  7:45 ` [PATCH v2 43/48] libperf: Sync evsel documentation Ian Rogers
2021-12-23  7:45 ` [PATCH v2 44/48] perf bpf: Rename cpu to cpu_map_idx Ian Rogers
2021-12-23  7:45 ` [PATCH v2 45/48] perf c2c: Use more intention revealing iterator Ian Rogers
2021-12-23  7:45 ` [PATCH v2 46/48] perf script: Fix flipped index and cpu Ian Rogers
2021-12-23  7:45 ` [PATCH v2 47/48] perf stat: Correct first_shadow_cpu to return index Ian Rogers
2021-12-23  7:45 ` [PATCH v2 48/48] perf cpumap: Give CPUs their own type Ian Rogers

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