1 files changed, 24 insertions, 10 deletions

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index a55b88eaf96a..a22944ca0526 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 */