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| author | Ruchi Kandoi <kandoiruchi@google.com> | 2015-11-19 16:07:19 -0800 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2016-01-11 09:50:29 +0530 |
| commit | 63f7334e20a649f541d9f6ac67ed5251ee80fb8c (patch) | |
| tree | e17f006a4e54e32dc7d9108fb42fc4a49da1e4a0 | |
| parent | 09cc973b881c73765d84a032337491e95791be7c (diff) | |
| download | linaro-android-63f7334e20a649f541d9f6ac67ed5251ee80fb8c.tar.gz | |
trace: cpufreq: Add tracing for min/max cpufreq
Change-Id: I73f6ec437c1f805437d9376abb6510d1364b07ec
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
| -rw-r--r-- | Documentation/trace/events-power.txt | 1 | ||||
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 1 | ||||
| -rw-r--r-- | include/trace/events/power.h | 25 |
3 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/trace/events-power.txt b/Documentation/trace/events-power.txt index 21d514ced212..4d817d5acc40 100644 --- a/Documentation/trace/events-power.txt +++ b/Documentation/trace/events-power.txt @@ -25,6 +25,7 @@ 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: diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 8412ce5f93a7..e49512718325 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2128,6 +2128,7 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, policy->min = new_policy->min; policy->max = new_policy->max; + trace_cpu_frequency_limits(policy->max, policy->min, policy->cpu); pr_debug("new min and max freqs are %u - %u kHz\n", policy->min, policy->max); diff --git a/include/trace/events/power.h b/include/trace/events/power.h index d0644a184b6d..de77035567c4 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -120,6 +120,31 @@ DEFINE_EVENT(cpu, cpu_frequency, TP_ARGS(frequency, cpu_id) ); +TRACE_EVENT(cpu_frequency_limits, + + TP_PROTO(unsigned int max_freq, unsigned int min_freq, + unsigned int cpu_id), + + TP_ARGS(max_freq, min_freq, cpu_id), + + TP_STRUCT__entry( + __field( u32, min_freq ) + __field( u32, max_freq ) + __field( u32, cpu_id ) + ), + + TP_fast_assign( + __entry->min_freq = min_freq; + __entry->max_freq = min_freq; + __entry->cpu_id = cpu_id; + ), + + TP_printk("min=%lu max=%lu cpu_id=%lu", + (unsigned long)__entry->min_freq, + (unsigned long)__entry->max_freq, + (unsigned long)__entry->cpu_id) +); + TRACE_EVENT(device_pm_callback_start, TP_PROTO(struct device *dev, const char *pm_ops, int event), |