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libperf: Adopt perf_cpu_map__max() function 

From 'perf stat', so that it can be used from multiple places.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20190902121255.536-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-09-02 14:12:53 +02:00 committed by Arnaldo Carvalho de Melo
parent 227cb12985
commit 4256d43493
4 changed files with 15 additions and 13 deletions
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14
tools/perf/builtin-stat.c
View File

@ -822,18 +822,6 @@ static int perf_stat__get_core(struct perf_stat_config *config __maybe_unused,
return cpu_map__get_core(map, cpu, NULL);
}
static int cpu_map__get_max(struct perf_cpu_map *map)
{
int i, max = -1;
for (i = 0; i < map->nr; i++) {
if (map->map[i] > max)
max = map->map[i];
}
return max;
}
static int perf_stat__get_aggr(struct perf_stat_config *config,
aggr_get_id_t get_id, struct perf_cpu_map *map, int idx)
{
@ -928,7 +916,7 @@ static int perf_stat_init_aggr_mode(void)
* taking the highest cpu number to be the size of
* the aggregation translate cpumap.
*/
nr = cpu_map__get_max(evsel_list->core.cpus);
nr = perf_cpu_map__max(evsel_list->core.cpus);
stat_config.cpus_aggr_map = perf_cpu_map__empty_new(nr + 1);
return stat_config.cpus_aggr_map ? 0 : -ENOMEM;
}

12
tools/perf/lib/cpumap.c
View File

@ -260,3 +260,15 @@ int perf_cpu_map__idx(struct perf_cpu_map *cpus, int cpu)
return -1;
}
int perf_cpu_map__max(struct perf_cpu_map *map)
{
int i, max = -1;
for (i = 0; i < map->nr; i++) {
if (map->map[i] > max)
max = map->map[i];
}
return max;
}

1
tools/perf/lib/include/perf/cpumap.h
View File

@ -16,6 +16,7 @@ LIBPERF_API void perf_cpu_map__put(struct perf_cpu_map *map);
LIBPERF_API int perf_cpu_map__cpu(const struct perf_cpu_map *cpus, int idx);
LIBPERF_API int perf_cpu_map__nr(const struct perf_cpu_map *cpus);
LIBPERF_API bool perf_cpu_map__empty(const struct perf_cpu_map *map);
LIBPERF_API int perf_cpu_map__max(struct perf_cpu_map *map);
#define perf_cpu_map__for_each_cpu(cpu, idx, cpus) \
for ((idx) = 0, (cpu) = perf_cpu_map__cpu(cpus, idx); \

1
tools/perf/lib/libperf.map
View File

@ -9,6 +9,7 @@ LIBPERF_0.0.1 {
perf_cpu_map__nr;
perf_cpu_map__cpu;
perf_cpu_map__empty;
perf_cpu_map__max;
perf_thread_map__new_dummy;
perf_thread_map__set_pid;
perf_thread_map__comm;