diff options
Diffstat (limited to 'include/linux/cpufreq.h')
| -rw-r--r-- | include/linux/cpufreq.h | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index a55b88eaf96..a22944ca052 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -89,11 +89,15 @@ struct cpufreq_real_policy { }; struct cpufreq_policy { - cpumask_var_t cpus; /* CPUs requiring sw coordination */ - cpumask_var_t related_cpus; /* CPUs with any coordination */ - unsigned int shared_type; /* ANY or ALL affected CPUs + /* CPUs sharing clock, require sw coordination */ + cpumask_var_t cpus; /* Online CPUs only */ + cpumask_var_t related_cpus; /* Online + Offline CPUs */ + + unsigned int shared_type; /* ACPI: ANY or ALL affected CPUs should set cpufreq */ - unsigned int cpu; /* cpu nr of registered CPU */ + unsigned int cpu; /* cpu nr of CPU managing this policy */ + unsigned int last_cpu; /* cpu nr of previous CPU that managed + * this policy */ struct cpufreq_cpuinfo cpuinfo;/* see above */ unsigned int min; /* in kHz */ @@ -112,16 +116,23 @@ struct cpufreq_policy { struct completion kobj_unregister; }; -#define CPUFREQ_ADJUST (0) -#define CPUFREQ_INCOMPATIBLE (1) -#define CPUFREQ_NOTIFY (2) -#define CPUFREQ_START (3) +#define CPUFREQ_ADJUST (0) +#define CPUFREQ_INCOMPATIBLE (1) +#define CPUFREQ_NOTIFY (2) +#define CPUFREQ_START (3) +#define CPUFREQ_UPDATE_POLICY_CPU (4) +/* Only for ACPI */ #define CPUFREQ_SHARED_TYPE_NONE (0) /* None */ #define CPUFREQ_SHARED_TYPE_HW (1) /* HW does needed coordination */ #define CPUFREQ_SHARED_TYPE_ALL (2) /* All dependent CPUs should set freq */ #define CPUFREQ_SHARED_TYPE_ANY (3) /* Freq can be set from any dependent CPU*/ +static inline bool policy_is_shared(struct cpufreq_policy *policy) +{ + return cpumask_weight(policy->cpus) > 1; +} + /******************** cpufreq transition notifiers *******************/ #define CPUFREQ_PRECHANGE (0) @@ -173,6 +184,7 @@ static inline unsigned long cpufreq_scale(unsigned long old, u_int div, u_int mu struct cpufreq_governor { char name[CPUFREQ_NAME_LEN]; + int initialized; int (*governor) (struct cpufreq_policy *policy, unsigned int event); ssize_t (*show_setspeed) (struct cpufreq_policy *policy, @@ -308,6 +320,9 @@ __ATTR(_name, 0444, show_##_name, NULL) static struct global_attr _name = \ __ATTR(_name, 0644, show_##_name, store_##_name) +struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu); +void cpufreq_cpu_put(struct cpufreq_policy *data); +const char *cpufreq_get_current_driver(void); /********************************************************************* * CPUFREQ 2.6. INTERFACE * @@ -397,14 +412,13 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy, /* the following 3 funtions are for cpufreq core use only */ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu); -struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu); -void cpufreq_cpu_put(struct cpufreq_policy *data); /* the following are really really optional */ extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs; void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, unsigned int cpu); +void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy); void cpufreq_frequency_table_put_attr(unsigned int cpu); #endif /* _LINUX_CPUFREQ_H */ |