linux_dsm_epyc7002/tools/lib
Arnaldo Carvalho de Melo 09f6acf2ea tools lib api cpu: Introduce cpu.[ch] to obtain cpu related information
E.g.:

 $ ./cpu__get_max_freq
 3200000

It does that, as Kan's patch does, by looking at these files:

  $ cat /sys/devices/system/cpu/online
  0-3
  $ ./sysfs__read_ull
  devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
  /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq=3200000
  $

I.e. find out the first online CPU, then read its cpufreq info.

But do it in tools/lib/api/, so that other tools/ living code can use
it, not just perf.

Based-on-a-patch-by: Kan Liang <kan.liang@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-915v4cvxqplaub8qco66b9mv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-14 12:50:26 -03:00
..
api tools lib api cpu: Introduce cpu.[ch] to obtain cpu related information 2015-09-14 12:50:26 -03:00
bpf bpf tools: New API to get name from a BPF object 2015-08-31 16:53:15 -03:00
lockdep tools/liblockdep: Use the rbtree header provided by common tools headers 2015-08-25 09:44:23 +02:00
symbol tools lib symbol: Start carving out symbol parsing routines from perf 2013-12-13 10:30:20 -03:00
traceevent tools lib traceevent: Support function __get_dynamic_array_len 2015-09-02 16:30:46 -03:00
util tools lib: Move asm-generic/bitops/find.h code to tools/include and tools/lib 2014-12-17 11:14:48 -03:00
hweight.c tools: Copy lib/hweight.c from the kernel sources 2015-07-09 16:29:56 -03:00
rbtree.c tools: Copy lib/rbtree.c to tools/lib/ 2015-07-05 22:48:21 -03:00