]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - include/linux/cpufreq.h
parisc: types: use <asm-generic/int-*.h> for the parisc architecture
[linux-2.6-omap-h63xx.git] / include / linux / cpufreq.h
index 9e5f5d0c87f3465afc97a41271f11f3434d94f84..e7e91dbfde0f25927490cf1c9d18c3587b8d7ea3 100644 (file)
  *                     CPUFREQ NOTIFIER INTERFACE                    *
  *********************************************************************/
 
-int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list);
-int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list);
-
 #define CPUFREQ_TRANSITION_NOTIFIER    (0)
 #define CPUFREQ_POLICY_NOTIFIER                (1)
 
+#ifdef CONFIG_CPU_FREQ
+int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list);
+int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list);
+#else          /* CONFIG_CPU_FREQ */
+static inline int cpufreq_register_notifier(struct notifier_block *nb,
+                                               unsigned int list)
+{
+       return 0;
+}
+static inline int cpufreq_unregister_notifier(struct notifier_block *nb,
+                                               unsigned int list)
+{
+       return 0;
+}
+#endif         /* CONFIG_CPU_FREQ */
 
 /* if (cpufreq_driver->target) exists, the ->governor decides what frequency
  * within the limits is used. If (cpufreq_driver->setpolicy> exists, these
@@ -71,7 +83,8 @@ struct cpufreq_real_policy {
 };
 
 struct cpufreq_policy {
-       cpumask_t               cpus;   /* affected CPUs */
+       cpumask_t               cpus;   /* CPUs requiring sw coordination */
+       cpumask_t               related_cpus; /* CPUs with any coordination */
        unsigned int            shared_type; /* ANY or ALL affected CPUs
                                                should set cpufreq */
        unsigned int            cpu;    /* cpu nr of registered CPU */
@@ -155,6 +168,10 @@ struct cpufreq_governor {
        char    name[CPUFREQ_NAME_LEN];
        int     (*governor)     (struct cpufreq_policy *policy,
                                 unsigned int event);
+       ssize_t (*show_setspeed)        (struct cpufreq_policy *policy,
+                                        char *buf);
+       int     (*store_setspeed)       (struct cpufreq_policy *policy,
+                                        unsigned int freq);
        unsigned int max_transition_latency; /* HW must be able to switch to
                        next freq faster than this value in nano secs or we
                        will fallback to performance governor */
@@ -286,10 +303,14 @@ static inline unsigned int cpufreq_quick_get(unsigned int cpu)
   Performance governor is fallback governor if any other gov failed to
   auto load due latency restrictions
 */
+#ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE
 extern struct cpufreq_governor cpufreq_gov_performance;
-#define CPUFREQ_PERFORMANCE_GOVERNOR   (&cpufreq_gov_performance)
+#endif
 #ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
 #define CPUFREQ_DEFAULT_GOVERNOR       (&cpufreq_gov_performance)
+#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE)
+extern struct cpufreq_governor cpufreq_gov_powersave;
+#define CPUFREQ_DEFAULT_GOVERNOR       (&cpufreq_gov_powersave)
 #elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE)
 extern struct cpufreq_governor cpufreq_gov_userspace;
 #define CPUFREQ_DEFAULT_GOVERNOR       (&cpufreq_gov_userspace)