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Commit d0a7c6bb authored by Saravana Kannan's avatar Saravana Kannan
Browse files

cpufreq: schedutil: Add tunable to control WALT pl use 



By default these are set to off.

Change-Id: I54f19553bc518705d9234a576219e4232cec960a
Signed-off-by: default avatarSaravana Kannan <skannan@codeaurora.org>
parent a25de292

kernel/sched/cpufreq_schedutil.c

+23 −1
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ struct sugov_tunables { 
	struct gov_attr_set attr_set;

	unsigned int rate_limit_us;

	unsigned int hispeed_freq;

	bool pl;

};



struct sugov_policy {
@@ -224,6 +225,7 @@ static void sugov_walt_adjust(struct sugov_cpu *sg_cpu, unsigned long *util, 
	if (is_hiload && nl >= mult_frac(cpu_util, NL_RATIO, 100))

		*util = *max;



	if (sg_policy->tunables->pl)

		*util = max(*util, sg_cpu->walt_load.pl);

}
@@ -450,12 +452,32 @@ static ssize_t hispeed_freq_store(struct gov_attr_set *attr_set, 
	return count;

}



static ssize_t pl_show(struct gov_attr_set *attr_set, char *buf)

{

	struct sugov_tunables *tunables = to_sugov_tunables(attr_set);



	return sprintf(buf, "%u\n", tunables->pl);

}



static ssize_t pl_store(struct gov_attr_set *attr_set, const char *buf,

				   size_t count)

{

	struct sugov_tunables *tunables = to_sugov_tunables(attr_set);



	if (kstrtobool(buf, &tunables->pl))

		return -EINVAL;



	return count;

}



static struct governor_attr rate_limit_us = __ATTR_RW(rate_limit_us);

static struct governor_attr hispeed_freq = __ATTR_RW(hispeed_freq);

static struct governor_attr pl = __ATTR_RW(pl);



static struct attribute *sugov_attributes[] = {

	&rate_limit_us.attr,

	&hispeed_freq.attr,

	&pl.attr,

	NULL

};