diff options
Diffstat (limited to 'include/linux/acpi.h')
| -rw-r--r-- | include/linux/acpi.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index c708fd831565..ed68f45c09f7 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -283,6 +283,21 @@ 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 */ |