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authorRuchi Kandoi <kandoiruchi@google.com>2018-07-24 20:35:44 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-07-26 11:17:47 +0300
commit601b218568a107370086dc5c7a1b283f8d463268 (patch)
tree9d45980743e50f386198cf2c17b44904161c15a5 /Documentation/trace
parent6e926363fc0071e6dc33349dedd97f28e9a2e464 (diff)
downloadlinux-601b218568a107370086dc5c7a1b283f8d463268.tar.xz
cpufreq: trace frequency limits change
systrace used for tracing for Android systems has carried a patch for many years in the Android tree that traces when the cpufreq limits change. With the help of this information, systrace can know when the policy limits change and can visually display the data. Lets add upstream support for the same. Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/trace')
-rw-r--r--Documentation/trace/events-power.rst1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/trace/events-power.rst b/Documentation/trace/events-power.rst
index a77daca75e30..2ef318962e29 100644
--- a/Documentation/trace/events-power.rst
+++ b/Documentation/trace/events-power.rst
@@ -27,6 +27,7 @@ cpufreq.
cpu_idle "state=%lu cpu_id=%lu"
cpu_frequency "state=%lu cpu_id=%lu"
+ cpu_frequency_limits "min=%lu max=%lu cpu_id=%lu"
A suspend event is used to indicate the system going in and out of the
suspend mode: