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Diffstat (limited to 'include/linux/cpufreq.h')
-rw-r--r--include/linux/cpufreq.h34
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 */