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From: James Clark <james.clark@arm.com>
To: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	jolsa@redhat.com, namhyung@kernel.org
Cc: james.clark@arm.com, john.garry@huawei.com,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Thomas Richter <tmricht@linux.ibm.com>
Subject: [PATCH v6 05/12] perf tools: add new map type for aggregation
Date: Thu, 26 Nov 2020 16:13:21 +0200
Message-ID: <20201126141328.6509-6-james.clark@arm.com> (raw)
In-Reply-To: <20201126141328.6509-1-james.clark@arm.com>

Currently this is a duplicate of perf_cpu_map so that
it can be used as a drop in replacement.

In a later commit it will be changed from a map of ints
to use the new cpu_aggr_id struct.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: John Garry <john.garry@huawei.com>
---
 tools/perf/util/cpumap.c | 17 +++++++++++++++++
 tools/perf/util/cpumap.h |  8 ++++++++
 2 files changed, 25 insertions(+)

diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index e05a12bde073..b18e53506656 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -95,6 +95,23 @@ struct perf_cpu_map *perf_cpu_map__empty_new(int nr)
 	return cpus;
 }
 
+struct cpu_aggr_map *cpu_aggr_map__empty_new(int nr)
+{
+	struct cpu_aggr_map *cpus = malloc(sizeof(*cpus) + sizeof(int) * nr);
+
+	if (cpus != NULL) {
+		int i;
+
+		cpus->nr = nr;
+		for (i = 0; i < nr; i++)
+			cpus->map[i] = -1;
+
+		refcount_set(&cpus->refcnt, 1);
+	}
+
+	return cpus;
+}
+
 static int cpu__get_topology_int(int cpu, const char *name, int *value)
 {
 	char path[PATH_MAX];
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index b8c2288a3f6d..ebd65c4f431b 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -11,9 +11,17 @@ struct aggr_cpu_id {
 	int id;
 };
 
+struct cpu_aggr_map {
+	refcount_t refcnt;
+	int nr;
+	int map[];
+};
+
 struct perf_record_cpu_map_data;
 
 struct perf_cpu_map *perf_cpu_map__empty_new(int nr);
+struct cpu_aggr_map *cpu_aggr_map__empty_new(int nr);
+
 struct perf_cpu_map *cpu_map__new_data(struct perf_record_cpu_map_data *data);
 size_t cpu_map__snprint(struct perf_cpu_map *map, char *buf, size_t size);
 size_t cpu_map__snprint_mask(struct perf_cpu_map *map, char *buf, size_t size);
-- 
2.28.0


  parent reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-26 14:13 [PATCH v6 00/12] perf tools: fix perf stat with large socket IDs James Clark
2020-11-26 14:13 ` [PATCH v6 01/12] perf tools: Improve topology test James Clark
2020-11-26 14:13 ` [PATCH v6 02/12] perf tools: Use allocator for perf_cpu_map James Clark
2020-11-26 14:13 ` [PATCH v6 03/12] perf tools: Add new struct for cpu aggregation James Clark
2020-11-26 14:13 ` [PATCH v6 04/12] perf tools: Replace aggregation ID with a struct James Clark
2020-11-26 14:13 ` James Clark [this message]
2020-11-26 14:13 ` [PATCH v6 06/12] perf tools: drop in cpu_aggr_map struct James Clark
2020-11-26 14:13 ` [PATCH v6 07/12] perf tools: Start using cpu_aggr_id in map James Clark
2020-11-26 14:13 ` [PATCH v6 08/12] perf tools: Add separate node member James Clark
2020-11-26 14:13 ` [PATCH v6 09/12] perf tools: Add separate socket member James Clark
2020-11-26 14:13 ` [PATCH v6 10/12] perf tools: Add separate die member James Clark
2020-11-26 14:13 ` [PATCH v6 11/12] perf tools: Add separate core member James Clark
2020-11-26 14:13 ` [PATCH v6 12/12] perf tools: Add separate thread member James Clark
2020-11-30 14:33 ` [PATCH v6 00/12] perf tools: fix perf stat with large socket IDs Namhyung Kim
2020-12-03 15:39 ` Jiri Olsa
2020-12-04 11:48   ` John Garry
2020-12-23 22:17     ` Jiri Olsa
2020-12-24 12:30       ` Arnaldo Carvalho de Melo

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