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| author | Javi Merino <javi.merino@arm.com> | 2015-09-10 18:09:31 +0100 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2015-10-30 10:41:38 -0700 |
| commit | 9876b1a4431a3f0959c70e1d817ecab6440cb2e6 (patch) | |
| tree | b6daed14bd0206687c8b645b5295c273a1306d71 /drivers/thermal/devfreq_cooling.c | |
| parent | a76caf55e5b356ba20a5a43ac4d9f7a04b20941d (diff) | |
| download | lwn-9876b1a4431a3f0959c70e1d817ecab6440cb2e6.tar.gz lwn-9876b1a4431a3f0959c70e1d817ecab6440cb2e6.zip | |
devfreq_cooling: add trace information
Tracing is useful for debugging and performance tuning. Add similar
traces to what's present in the cpu cooling device.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal/devfreq_cooling.c')
| -rw-r--r-- | drivers/thermal/devfreq_cooling.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c index a032c5d5c374..a27206815066 100644 --- a/drivers/thermal/devfreq_cooling.c +++ b/drivers/thermal/devfreq_cooling.c @@ -25,6 +25,8 @@ #include <linux/pm_opp.h> #include <linux/thermal.h> +#include <trace/events/thermal.h> + static DEFINE_MUTEX(devfreq_lock); static DEFINE_IDR(devfreq_idr); @@ -293,6 +295,9 @@ static int devfreq_cooling_get_requested_power(struct thermal_cooling_device *cd /* Get static power */ static_power = get_static_power(dfc, freq); + trace_thermal_power_devfreq_get_power(cdev, status, freq, dyn_power, + static_power); + *power = dyn_power + static_power; return 0; @@ -348,6 +353,7 @@ static int devfreq_cooling_power2state(struct thermal_cooling_device *cdev, break; *state = i; + trace_thermal_power_devfreq_limit(cdev, freq, *state, power); return 0; } |