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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-09-30 11:50:15 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-10-07 12:22:17 -0300 |
| commit | f1cedfb82858c8a7ec21e45d0ce7b6e2ce9edea0 (patch) | |
| tree | 4755fd25c223485e743ee9d4150522616348f282 /tools/perf/util/env.h | |
| parent | f733c6b508bcaa3441ba1eacf16efb9abd47489f (diff) | |
| download | linux-stable-f1cedfb82858c8a7ec21e45d0ce7b6e2ce9edea0.tar.gz linux-stable-f1cedfb82858c8a7ec21e45d0ce7b6e2ce9edea0.tar.bz2 linux-stable-f1cedfb82858c8a7ec21e45d0ce7b6e2ce9edea0.zip | |
perf env: Add routine to read the env->cpuid from the running machine
In 'perf top' we use that cpuid when initializing the per arch
annotation init routines (e.g. x86__annotate_init()) and in that case
(live mode, 'perf top') we need to obtain it from the running machine,
not from a perf.data file header.
Provide a means to do that. Will be used by 'perf top' in a followup
patch.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-h2wb3sx7u7znx6lqfezrh7ca@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/env.h')
| -rw-r--r-- | tools/perf/util/env.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index db40906e2937..a3059dc1abe5 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -104,6 +104,7 @@ void perf_env__exit(struct perf_env *env); int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]); +int perf_env__read_cpuid(struct perf_env *env); int perf_env__read_cpu_topology_map(struct perf_env *env); void cpu_cache_level__free(struct cpu_cache_level *cache); |