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Commit eb4660ce authored by yonghaih's avatar yonghaih
Browse files

cpufreq: record CPUFREQ stat for fast switch path 



Original CPUFREQ stat recording is only for slow path, add it for
fast path.

Change-Id: I3b99777bc39ae6bcac5be83d554b0de4f1442e96
Signed-off-by: default avataryonghaih <yonghaih@codeaurora.org>
parent 588adc3a

drivers/cpufreq/cpufreq.c

+3 −1
Original line number Diff line number Diff line
@@ -1895,8 +1895,10 @@ unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy, 
	target_freq = clamp_val(target_freq, policy->min, policy->max);



        ret = cpufreq_driver->fast_switch(policy, target_freq);

	if (ret)

	if (ret) {

		cpufreq_times_record_transition(policy, ret);

		cpufreq_stats_record_transition(policy, ret);

	}



	return ret;

}

drivers/cpufreq/cpufreq_stats.c

+3 −8
Original line number Diff line number Diff line
@@ -30,11 +30,12 @@ struct cpufreq_stats { 
static int cpufreq_stats_update(struct cpufreq_stats *stats)

{

	unsigned long long cur_time = get_jiffies_64();

	unsigned long flags;



	spin_lock(&cpufreq_stats_lock);

	spin_lock_irqsave(&cpufreq_stats_lock, flags);

	stats->time_in_state[stats->last_index] += cur_time - stats->last_time;

	stats->last_time = cur_time;

	spin_unlock(&cpufreq_stats_lock);

	spin_unlock_irqrestore(&cpufreq_stats_lock, flags);

	return 0;

}
@@ -59,9 +60,6 @@ static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf) 
	ssize_t len = 0;

	int i;



	if (policy->fast_switch_enabled)

		return 0;



	cpufreq_stats_update(stats);

	for (i = 0; i < stats->state_num; i++) {

		len += sprintf(buf + len, "%u %llu\n", stats->freq_table[i],
@@ -85,9 +83,6 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf) 
	ssize_t len = 0;

	int i, j;



	if (policy->fast_switch_enabled)

		return 0;



	len += snprintf(buf + len, PAGE_SIZE - len, "   From  :    To\n");

	len += snprintf(buf + len, PAGE_SIZE - len, "         : ");

	for (i = 0; i < stats->state_num; i++) {