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-rw-r--r--include/linux/acpi.h15
-rw-r--r--include/linux/cpuidle.h6
2 files changed, 16 insertions, 5 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 0f37a7d5fa77..0f24d701fbdc 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -279,6 +279,21 @@ static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
/* Validate the processor object's proc_id */
bool acpi_duplicate_processor_id(int proc_id);
+/* Processor _CTS control */
+struct acpi_processor_power;
+
+#ifdef CONFIG_ACPI_PROCESSOR_CSTATE
+bool acpi_processor_claim_cst_control(void);
+int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
+ struct acpi_processor_power *info);
+#else
+static inline bool acpi_processor_claim_cst_control(void) { return false; }
+static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
+ struct acpi_processor_power *info)
+{
+ return -ENODEV;
+}
+#endif
#ifdef CONFIG_ACPI_HOTPLUG_CPU
/* Arch dependent functions for cpu hotplug support */
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 1dabe36bd011..ec2ef63771f0 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -77,6 +77,7 @@ struct cpuidle_state {
#define CPUIDLE_FLAG_COUPLED BIT(1) /* state applies to multiple cpus */
#define CPUIDLE_FLAG_TIMER_STOP BIT(2) /* timer is stopped on this state */
#define CPUIDLE_FLAG_UNUSABLE BIT(3) /* avoid using this state */
+#define CPUIDLE_FLAG_OFF BIT(4) /* disable this state by default */
struct cpuidle_device_kobj;
struct cpuidle_state_kobj;
@@ -115,7 +116,6 @@ DECLARE_PER_CPU(struct cpuidle_device, cpuidle_dev);
struct cpuidle_driver {
const char *name;
struct module *owner;
- int refcnt;
/* used by the cpuidle framework to setup the broadcast timer */
unsigned int bctimer:1;
@@ -147,8 +147,6 @@ extern u64 cpuidle_poll_time(struct cpuidle_driver *drv,
extern int cpuidle_register_driver(struct cpuidle_driver *drv);
extern struct cpuidle_driver *cpuidle_get_driver(void);
-extern struct cpuidle_driver *cpuidle_driver_ref(void);
-extern void cpuidle_driver_unref(void);
extern void cpuidle_driver_state_disabled(struct cpuidle_driver *drv, int idx,
bool disable);
extern void cpuidle_unregister_driver(struct cpuidle_driver *drv);
@@ -186,8 +184,6 @@ static inline u64 cpuidle_poll_time(struct cpuidle_driver *drv,
static inline int cpuidle_register_driver(struct cpuidle_driver *drv)
{return -ENODEV; }
static inline struct cpuidle_driver *cpuidle_get_driver(void) {return NULL; }
-static inline struct cpuidle_driver *cpuidle_driver_ref(void) {return NULL; }
-static inline void cpuidle_driver_unref(void) {}
static inline void cpuidle_driver_state_disabled(struct cpuidle_driver *drv,
int idx, bool disable) { }
static inline void cpuidle_unregister_driver(struct cpuidle_driver *drv) { }