diff options
Diffstat (limited to 'include/linux/cpufreq.h')
| -rw-r--r-- | include/linux/cpufreq.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 3d466f6680cb..f747117285f4 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -36,11 +36,13 @@ int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list); #define CPUFREQ_POLICY_NOTIFIER (1) -/********************** cpufreq policy notifiers *********************/ +/* if (cpufreq_driver->target) exists, the ->governor decides what frequency + * within the limits is used. If (cpufreq_driver->setpolicy> exists, these + * two generic policies are available: + */ #define CPUFREQ_POLICY_POWERSAVE (1) #define CPUFREQ_POLICY_PERFORMANCE (2) -#define CPUFREQ_POLICY_GOVERNOR (3) /* Frequency values here are CPU kHz so that hardware which doesn't run * with some frequencies can complain without having to guess what per @@ -151,6 +153,7 @@ int cpufreq_governor(unsigned int cpu, unsigned int event); int cpufreq_register_governor(struct cpufreq_governor *governor); void cpufreq_unregister_governor(struct cpufreq_governor *governor); + /********************************************************************* * CPUFREQ DRIVER INTERFACE * *********************************************************************/ @@ -176,6 +179,7 @@ struct cpufreq_driver { /* optional */ int (*exit) (struct cpufreq_policy *policy); + int (*resume) (struct cpufreq_policy *policy); struct freq_attr **attr; }; @@ -221,7 +225,6 @@ int cpufreq_parse_governor (char *str_governor, unsigned int *policy, struct cpu /********************************************************************* * CPUFREQ USERSPACE GOVERNOR * *********************************************************************/ -extern struct cpufreq_governor cpufreq_gov_userspace; int cpufreq_gov_userspace_init(void); int cpufreq_setmax(unsigned int cpu); @@ -280,6 +283,19 @@ enum { /********************************************************************* + * CPUFREQ DEFAULT GOVERNOR * + *********************************************************************/ + + +#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE +extern struct cpufreq_governor cpufreq_gov_performance; +#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_performance +#elif CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE +extern struct cpufreq_governor cpufreq_gov_userspace; +#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_userspace +#endif + +/********************************************************************* * FREQUENCY TABLE HELPERS * *********************************************************************/ |