From 9ff14099c795857ff2fea333093ed3c836f9f25f Mon Sep 17 00:00:00 2001 From: Ruchi Kandoi Date: Thu, 19 Nov 2015 16:07:19 -0800 Subject: [PATCH] ANDROID: trace: cpufreq: Add tracing for min/max cpufreq Change-Id: I73f6ec437c1f805437d9376abb6510d1364b07ec Signed-off-by: Ruchi Kandoi [AmitP: Folded following android-4.9 commit changes into this patch d335459377f7 ("ANDROID: trace: cpufreq: fix typo in min/max cpufreq")] Signed-off-by: Amit Pundir --- Documentation/trace/events-power.txt | 1 + drivers/cpufreq/cpufreq.c | 1 + include/trace/events/power.h | 25 +++++++++++++++++++++++++ 3 files changed, 27 insertions(+) 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 ea43b147a7fe..91e6bee9d8f8 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2232,6 +2232,7 @@ 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); policy->cached_target_freq = UINT_MAX; diff --git a/include/trace/events/power.h b/include/trace/events/power.h index 908977d69783..0b62efb1b758 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -148,6 +148,31 @@ 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 = max_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),