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Merge back earlier 'pm-cpufreq' material.

Browse source 
Conflicts:
	drivers/cpufreq/omap-cpufreq.c
This commit is contained in:
Rafael J. Wysocki 2013-10-25 22:36:40 +02:00
commit 6ddee424fe
74 changed files with 464 additions and 1513 deletions
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50
include/linux/cpufreq.h
View file

@ -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);
@ -211,13 +204,22 @@ struct cpufreq_driver {
};
/* flags */
#define CPUFREQ_STICKY 0x01 /* the driver isn't removed even if
* all ->init() calls failed */
#define CPUFREQ_CONST_LOOPS 0x02 /* loops_per_jiffy or other kernel
* "constants" aren't affected by
* frequency transitions */
#define CPUFREQ_PM_NO_WARN 0x04 /* don't warn on suspend/resume speed
* mismatches */
#define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
all ->init() calls failed */
#define CPUFREQ_CONST_LOOPS (1 << 1) /* loops_per_jiffy or other
kernel "constants" aren't
affected by frequency
transitions */
#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);
@ -240,6 +242,13 @@ static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
return;
}
static inline void
cpufreq_verify_within_cpu_limits(struct cpufreq_policy *policy)
{
cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
policy->cpuinfo.max_freq);
}
/*********************************************************************
* CPUFREQ NOTIFIER INTERFACE *
*********************************************************************/
@ -392,6 +401,7 @@ int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table);
int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy);
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table,
@ -407,8 +417,20 @@ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu);
/* the following are really really optional */
extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
extern struct freq_attr *cpufreq_generic_attr[];
void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
unsigned int cpu);
void cpufreq_frequency_table_put_attr(unsigned int cpu);
int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table);
int cpufreq_generic_init(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table,
unsigned int transition_latency);
static inline int cpufreq_generic_exit(struct cpufreq_policy *policy)
{
cpufreq_frequency_table_put_attr(policy->cpu);
return 0;
}
#endif /* _LINUX_CPUFREQ_H */