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cpufreq: use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY

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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: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2013-10-02 14:13:18 +05:30 • committed by Rafael J. Wysocki
commit 0b981e7074
4 changed files with 15 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/cpufreq/arm_big_little.c
View file

@ -213,13 +213,13 @@ static struct freq_attr *bL_cpufreq_attr[] = {
static struct cpufreq_driver bL_cpufreq_driver = { static struct cpufreq_driver bL_cpufreq_driver = {
.name = "arm-big-little", .name = "arm-big-little",
.flags = CPUFREQ_STICKY, .flags = CPUFREQ_STICKY |
CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
.verify = bL_cpufreq_verify_policy, .verify = bL_cpufreq_verify_policy,
.target = bL_cpufreq_set_target, .target = bL_cpufreq_set_target,
.get = bL_cpufreq_get, .get = bL_cpufreq_get,
.init = bL_cpufreq_init, .init = bL_cpufreq_init,
.exit = bL_cpufreq_exit, .exit = bL_cpufreq_exit,
.have_governor_per_policy = true,
.attr = bL_cpufreq_attr, .attr = bL_cpufreq_attr,
}; };

2
drivers/cpufreq/cpufreq.c
View file

@ -133,7 +133,7 @@ static DEFINE_MUTEX(cpufreq_governor_mutex);
bool have_governor_per_policy(void) 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); EXPORT_SYMBOL_GPL(have_governor_per_policy);

5
drivers/cpufreq/cpufreq_governor.h
View file

@ -191,7 +191,10 @@ struct common_dbs_data {
struct attribute_group *attr_group_gov_sys; /* one governor - system */ struct attribute_group *attr_group_gov_sys; /* one governor - system */
struct attribute_group *attr_group_gov_pol; /* one governor - policy */ 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 dbs_data *gdbs_data;
struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu); struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu);

15
include/linux/cpufreq.h
View file

@ -180,13 +180,6 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
struct cpufreq_driver { struct cpufreq_driver {
char name[CPUFREQ_NAME_LEN]; char name[CPUFREQ_NAME_LEN];
u8 flags; 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 */ /* needed by all drivers */
int (*init) (struct cpufreq_policy *policy); 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 #define CPUFREQ_PM_NO_WARN (1 << 2) /* don't warn on suspend/resume
speed mismatches */ 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_register_driver(struct cpufreq_driver *driver_data);
int cpufreq_unregister_driver(struct cpufreq_driver *driver_data); int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);