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| author |   Kan Liang <kan.liang@linux.intel.com> | 2019-06-04 15:50:40 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-06-10 15:50:02 -0300 |
| commit | b74d8686a18b36adecc710597198d5ef2dd5ef14 (patch) | |
| tree | 02cdc0675ac27dd7e8222de946ad3cba187e6c49 /tools/perf/util/cpumap.c | |
| parent | perf cs-etm: Add support for CPU-wide trace scenarios (diff) | |
| download | linux-dev-b74d8686a18b36adecc710597198d5ef2dd5ef14.tar.xz linux-dev-b74d8686a18b36adecc710597198d5ef2dd5ef14.zip | |
perf cpumap: Retrieve die id information
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>
Diffstat (limited to 'tools/perf/util/cpumap.c')
| -rw-r--r-- | tools/perf/util/cpumap.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c index 0b599229bc7e..7db1365c667e 100644 --- a/tools/perf/util/cpumap.c +++ b/tools/perf/util/cpumap.c @@ -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); |