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Commit 0b981e70 authored by Viresh Kumar's avatar Viresh Kumar Committed by Rafael J. Wysocki
Browse files

cpufreq: use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY 



Use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY instead
of a separate field within cpufreq_driver. This will save some bytes of
memory.

Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: default avatarSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 6461f018

drivers/cpufreq/arm_big_little.c

+2 −2
Original line number Diff line number Diff line
@@ -213,13 +213,13 @@ static struct freq_attr *bL_cpufreq_attr[] = { 


static struct cpufreq_driver bL_cpufreq_driver = {

	.name			= "arm-big-little",

	.flags			= CPUFREQ_STICKY,

	.flags			= CPUFREQ_STICKY |

					CPUFREQ_HAVE_GOVERNOR_PER_POLICY,

	.verify			= bL_cpufreq_verify_policy,

	.target			= bL_cpufreq_set_target,

	.get			= bL_cpufreq_get,

	.init			= bL_cpufreq_init,

	.exit			= bL_cpufreq_exit,

	.have_governor_per_policy = true,

	.attr			= bL_cpufreq_attr,

};

drivers/cpufreq/cpufreq.c

+1 −1
Original line number Diff line number Diff line
@@ -133,7 +133,7 @@ static DEFINE_MUTEX(cpufreq_governor_mutex); 


bool have_governor_per_policy(void)

{

	return cpufreq_driver->have_governor_per_policy;

	return !!(cpufreq_driver->flags & CPUFREQ_HAVE_GOVERNOR_PER_POLICY);

}

EXPORT_SYMBOL_GPL(have_governor_per_policy);

drivers/cpufreq/cpufreq_governor.h

+4 −1
Original line number Diff line number Diff line
@@ -191,7 +191,10 @@ struct common_dbs_data { 
	struct attribute_group *attr_group_gov_sys; /* one governor - system */

	struct attribute_group *attr_group_gov_pol; /* one governor - policy */



	/* Common data for platforms that don't set have_governor_per_policy */

	/*

	 * Common data for platforms that don't set

	 * CPUFREQ_HAVE_GOVERNOR_PER_POLICY

	 */

	struct dbs_data *gdbs_data;



	struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu);

include/linux/cpufreq.h

+8 −7
Original line number Diff line number Diff line
@@ -180,13 +180,6 @@ __ATTR(_name, 0644, show_##_name, store_##_name) 
struct cpufreq_driver {

	char			name[CPUFREQ_NAME_LEN];

	u8			flags;

	/*

	 * This should be set by platforms having multiple clock-domains, i.e.

	 * supporting multiple policies. With this sysfs directories of governor

	 * would be created in cpu/cpu<num>/cpufreq/ directory and so they can

	 * use the same governor with different tunables for different clusters.

	 */

	bool			have_governor_per_policy;



	/* needed by all drivers */

	int	(*init)		(struct cpufreq_policy *policy);
@@ -220,6 +213,14 @@ struct cpufreq_driver { 
#define CPUFREQ_PM_NO_WARN	(1 << 2)	/* don't warn on suspend/resume

						   speed mismatches */



/*

 * This should be set by platforms having multiple clock-domains, i.e.

 * supporting multiple policies. With this sysfs directories of governor would

 * be created in cpu/cpu<num>/cpufreq/ directory and so they can use the same

 * governor with different tunables for different clusters.

 */

#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3)



int cpufreq_register_driver(struct cpufreq_driver *driver_data);

int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);