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Merge back earlier cpufreq changes for v4.8.

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This commit is contained in:
Rafael J. Wysocki
2016-06-13 23:33:17 +02:00
parent 5edb56491d f6709b8aa7
commit bb4b9933e2
24 changed files with 407 additions and 600 deletions
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41
include/linux/cpufreq.h
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@@ -185,6 +185,18 @@ static inline unsigned int cpufreq_quick_get_max(unsigned int cpu)
static inline void disable_cpufreq(void) { }
#endif
#ifdef CONFIG_CPU_FREQ_STAT
void cpufreq_stats_create_table(struct cpufreq_policy *policy);
void cpufreq_stats_free_table(struct cpufreq_policy *policy);
void cpufreq_stats_record_transition(struct cpufreq_policy *policy,
unsigned int new_freq);
#else
static inline void cpufreq_stats_create_table(struct cpufreq_policy *policy) { }
static inline void cpufreq_stats_free_table(struct cpufreq_policy *policy) { }
static inline void cpufreq_stats_record_transition(struct cpufreq_policy *policy,
unsigned int new_freq) { }
#endif /* CONFIG_CPU_FREQ_STAT */
/*********************************************************************
* CPUFREQ DRIVER INTERFACE *
*********************************************************************/
@@ -455,18 +467,13 @@ static inline unsigned long cpufreq_scale(unsigned long old, u_int div,
#define MIN_LATENCY_MULTIPLIER (20)
#define TRANSITION_LATENCY_LIMIT (10 * 1000 * 1000)
/* Governor Events */
#define CPUFREQ_GOV_START 1
#define CPUFREQ_GOV_STOP 2
#define CPUFREQ_GOV_LIMITS 3
#define CPUFREQ_GOV_POLICY_INIT 4
#define CPUFREQ_GOV_POLICY_EXIT 5
struct cpufreq_governor {
char name[CPUFREQ_NAME_LEN];
int initialized;
int (*governor) (struct cpufreq_policy *policy,
unsigned int event);
int (*init)(struct cpufreq_policy *policy);
void (*exit)(struct cpufreq_policy *policy);
int (*start)(struct cpufreq_policy *policy);
void (*stop)(struct cpufreq_policy *policy);
void (*limits)(struct cpufreq_policy *policy);
ssize_t (*show_setspeed) (struct cpufreq_policy *policy,
char *buf);
int (*store_setspeed) (struct cpufreq_policy *policy,
@@ -493,6 +500,14 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor);
struct cpufreq_governor *cpufreq_default_governor(void);
struct cpufreq_governor *cpufreq_fallback_governor(void);
static inline void cpufreq_policy_apply_limits(struct cpufreq_policy *policy)
{
if (policy->max < policy->cur)
__cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H);
else if (policy->min > policy->cur)
__cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L);
}
/* Governor attribute set */
struct gov_attr_set {
struct kobject kobj;
@@ -583,10 +598,8 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy);
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table,
unsigned int target_freq,
unsigned int relation,
unsigned int *index);
unsigned int relation);
int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
unsigned int freq);
@@ -617,8 +630,6 @@ static inline bool policy_has_boost_freq(struct cpufreq_policy *policy)
return false;
}
#endif
/* the following funtion is for cpufreq core use only */
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;