diff options
| author | Dave Jones <davej@redhat.com> | 2003-09-03 02:50:10 +0100 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2003-09-03 02:50:10 +0100 |
| commit | e804252bee9e8c9463ff456f60e07f410eed1afb (patch) | |
| tree | 95f641af5cbabb50d10c1c9774d13298128ae716 /include/linux | |
| parent | adff42b1c54cd001d28d4d0ad21127b9be6d4812 (diff) | |
[CPUFREQ] Completely separate governors from policies.
Governors are for CPUfreq drivers which have a ->target callback,
Policies are for CPUfreq drivers which have a ->setpolicy callback.
Also, the "hardwired" governors "powersave" and "performance" are removed.
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpufreq.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 3d466f6680cb..f920b0a8e83e 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 * *********************************************************************/ @@ -221,7 +224,6 @@ 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 +282,19 @@ 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 * *********************************************************************/ |