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| author | Boris Ostrovsky <boris.ostrovsky@amd.com> | 2012-06-18 15:08:43 +0100 |
|---|---|---|
| committer | Boris Ostrovsky <boris.ostrovsky@amd.com> | 2012-06-18 15:08:43 +0100 |
| commit | 5f4acea2cec04e8e756ad3ab9291df098b4fb550 (patch) | |
| tree | 214992c0d5eff03314daa47cbbcc164f08402095 /xen/include/acpi | |
| parent | e4a459fca595f572178e90fe3d7565b2648bce44 (diff) | |
| download | xen-5f4acea2cec04e8e756ad3ab9291df098b4fb550.tar.gz xen-5f4acea2cec04e8e756ad3ab9291df098b4fb550.tar.bz2 xen-5f4acea2cec04e8e756ad3ab9291df098b4fb550.zip | |
x86, cpufreq: Change powernow's CPB status immediately
When command to modify turbo mode (CPB on AMD processors) comes
in the actual change happens later, when P-state transition is
requested. There is no time limit on when this transition will
occur and therefore change in CPB state may take long time from
the moment when command to toggle it is issued.
This patch makes CPB mode change happen immediately when request
is made.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@amd.com>
Committed-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/include/acpi')
| -rw-r--r-- | xen/include/acpi/cpufreq/cpufreq.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/xen/include/acpi/cpufreq/cpufreq.h b/xen/include/acpi/cpufreq/cpufreq.h index 1798b9bb19..f96c3e4ccf 100644 --- a/xen/include/acpi/cpufreq/cpufreq.h +++ b/xen/include/acpi/cpufreq/cpufreq.h @@ -124,8 +124,7 @@ extern int cpufreq_driver_getavg(unsigned int cpu, unsigned int flag); #define CPUFREQ_TURBO_UNSUPPORTED 0 #define CPUFREQ_TURBO_ENABLED 1 -extern void cpufreq_enable_turbo(int cpuid); -extern void cpufreq_disable_turbo(int cpuid); +extern int cpufreq_update_turbo(int cpuid, int new_state); extern int cpufreq_get_turbo_status(int cpuid); static __inline__ int @@ -146,6 +145,7 @@ struct cpufreq_driver { char name[CPUFREQ_NAME_LEN]; int (*init)(struct cpufreq_policy *policy); int (*verify)(struct cpufreq_policy *policy); + int (*update)(int cpuid, struct cpufreq_policy *policy); int (*target)(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation); |