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| author | James Clark <james.clark@arm.com> | 2020-11-26 16:13:21 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-12-24 10:04:24 -0300 |
| commit | cea6575fdccfc0624ca42f656e16e6b4d9bb48a5 (patch) | |
| tree | dc5f0fa191273dd27c7c934fb367d3ba5950bb26 | |
| parent | 2760f5a14fe7aa466e38bbb92d0284fffc0e4da0 (diff) | |
| download | linux-stable-cea6575fdccfc0624ca42f656e16e6b4d9bb48a5.tar.gz linux-stable-cea6575fdccfc0624ca42f656e16e6b4d9bb48a5.tar.bz2 linux-stable-cea6575fdccfc0624ca42f656e16e6b4d9bb48a5.zip | |
perf cpumap: Add new map type for aggregation
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>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-6-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/cpumap.c | 17 | ||||
| -rw-r--r-- | tools/perf/util/cpumap.h | 8 |
2 files changed, 25 insertions, 0 deletions
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); |