diff options
| author | Ruchi Kandoi <kandoiruchi@google.com> | 2015-11-19 16:07:19 -0800 |
|---|---|---|
| committer | Ruchi Kandoi <kandoiruchi@google.com> | 2015-11-30 15:50:11 -0800 |
| commit | b9b84da1c9dd7314fe6e6a8247edbc1dfd8b7c63 (patch) | |
| tree | 372b08dee46138f5da299cbbf35bfec16ad371b7 | |
| parent | ece3efa6d727e8e8b6d24275fdd3b8773879fad9 (diff) | |
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 3bd33b8dc7c4..1715faca804e 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 199b52b7c3e1..a28592732253 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2051,6 +2051,7 @@ 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 f2ec4647770f..777478e29996 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -97,6 +97,31 @@ 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(machine_suspend, TP_PROTO(unsigned int state), |