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perf cpumap: Retrieve die id information

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There is no function to retrieve die id information of a given CPU.

Add cpu_map__get_die_id() to retrieve die id information.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1559688644-106558-1-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2019-06-04 15:50:40 -07:00 committed by Arnaldo Carvalho de Melo
parent 21fe8dc119
commit b74d8686a1
2 changed files with 8 additions and 0 deletions
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7
tools/perf/util/cpumap.c
View File

@ -373,6 +373,13 @@ int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
return 0;
}
int cpu_map__get_die_id(int cpu)
{
int value, ret = cpu__get_topology_int(cpu, "die_id", &value);
return ret ?: value;
}
int cpu_map__get_core_id(int cpu)
{
int value, ret = cpu__get_topology_int(cpu, "core_id", &value);

1
tools/perf/util/cpumap.h
View File

@ -25,6 +25,7 @@ size_t cpu_map__snprint_mask(struct cpu_map *map, char *buf, size_t size);
size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
int cpu_map__get_socket_id(int cpu);
int cpu_map__get_socket(struct cpu_map *map, int idx, void *data);
int cpu_map__get_die_id(int cpu);
int cpu_map__get_core_id(int cpu);
int cpu_map__get_core(struct cpu_map *map, int idx, void *data);
int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);