]> git.karo-electronics.de Git - karo-tx-linux.git/commit
perf cpu_map: Add more helpers
authorMark Rutland <mark.rutland@arm.com>
Fri, 15 Jul 2016 10:08:11 +0000 (11:08 +0100)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 18 Jul 2016 22:42:47 +0000 (19:42 -0300)
commit9a6c582d57a0fc37fa4e13a69d9129fb3d98a401
treea2dc1be66870ab9ed15a8265eac5e8ea744a4df3
parent00e727bb389359c81101b03d34fec8cc7be5168d
perf cpu_map: Add more helpers

In some cases it's necessry to figure out the map-local index of a given
Linux logical CPU ID. Add a new helper, cpu_map__idx, to acquire this.
As the logic is largely the same as the existing cpu_map__has, this is
rewritten in terms of the new helper.

At the same time, add the inverse operation, cpu_map__cpu, which yields
the logical CPU id for a map-local index. While this can be performed
manually, wrapping this in a helper can make code more legible.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1468577293-19667-3-git-send-email-mark.rutland@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/cpumap.c
tools/perf/util/cpumap.h