diff options
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 2 | ||||
| -rw-r--r-- | include/trace/events/power.h | 29 |
2 files changed, 31 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 96adadf59e9e..3acc42805e21 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1449,8 +1449,10 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy, pr_debug("target for CPU %u: %u kHz, relation %u\n", policy->cpu, target_freq, relation); + trace_cpu_scale(policy->cpu, policy->cur, POWER_CPU_SCALE_START); if (cpu_online(policy->cpu) && cpufreq_driver->target) retval = cpufreq_driver->target(policy, target_freq, relation); + trace_cpu_scale(policy->cpu, target_freq, POWER_CPU_SCALE_DONE); return retval; } diff --git a/include/trace/events/power.h b/include/trace/events/power.h index be2325339768..63031aa5b6dd 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -47,6 +47,11 @@ enum { POWER_CPU_DOWN_DONE, }; +enum { + POWER_CPU_SCALE_START, + POWER_CPU_SCALE_DONE, +}; + #endif TRACE_EVENT(cpu_hotplug, @@ -70,6 +75,30 @@ TRACE_EVENT(cpu_hotplug, (unsigned long)__entry->state) ); +TRACE_EVENT(cpu_scale, + + TP_PROTO(unsigned int cpu_id, unsigned int freq, int state), + + TP_ARGS(cpu_id, freq, state), + + TP_STRUCT__entry( + __field(u64, cpu_id) + __field(u32, freq) + __field(u32, state) + ), + + TP_fast_assign( + __entry->cpu_id = cpu_id; + __entry->freq = freq; + __entry->state = state; + ), + + TP_printk("cpu_id=%lu, freq=%lu, state=%lu", + (unsigned long)__entry->cpu_id, + (unsigned long)__entry->freq, + (unsigned long)__entry->state) +); + DEFINE_EVENT(cpu, cpu_frequency, TP_PROTO(unsigned int frequency, unsigned int cpu_id), |