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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-12-10 13:27:14 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-12-10 13:27:14 +0000 |
| commit | 630b6713472007f100b40bf100246ca169b23a14 (patch) | |
| tree | 70af1436ba366fc704e0b770fb11ae70c91145a7 /xen/include/acpi | |
| parent | ac677794d61dc7a6f92b16946863043da890c828 (diff) | |
| download | xen-630b6713472007f100b40bf100246ca169b23a14.tar.gz xen-630b6713472007f100b40bf100246ca169b23a14.tar.bz2 xen-630b6713472007f100b40bf100246ca169b23a14.zip | |
Add cpufreq governors: performance, powersave, userspace
This patch add 3 more governors beside original running ondemand
cpufreq governor.
performance governor is with best performance, keeping cpu always
running at highest freq;
powersave governor is with best power save effect, keeping cpu always
running at lowest freq;
userspace governor provide user setting freq ability;
Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
Diffstat (limited to 'xen/include/acpi')
| -rw-r--r-- | xen/include/acpi/cpufreq/cpufreq.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/xen/include/acpi/cpufreq/cpufreq.h b/xen/include/acpi/cpufreq/cpufreq.h index 25b6ce7316..9e3e9477a0 100644 --- a/xen/include/acpi/cpufreq/cpufreq.h +++ b/xen/include/acpi/cpufreq/cpufreq.h @@ -84,9 +84,12 @@ struct cpufreq_governor { char name[CPUFREQ_NAME_LEN]; int (*governor)(struct cpufreq_policy *policy, unsigned int event); + struct list_head governor_list; }; extern struct cpufreq_governor cpufreq_gov_dbs; +extern int cpufreq_register_governor(struct cpufreq_governor *governor); +extern int cpufreq_unregister_governor(struct cpufreq_governor *governor); #define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_dbs /* pass a target to the cpufreq driver */ |