diff options
| author | Michal Wilczynski <michal.wilczynski@intel.com> | 2023-07-10 17:03:36 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2023-07-17 15:47:18 +0300 |
| commit | 95272641338a32734792fe4b261001847b11ed80 (patch) | |
| tree | e5415644cf4eff1445aef2b1f56920b5a284d91d /drivers/acpi/internal.h | |
| parent | 5ba30be7fd6e3fdff1e0b01f24173a5e6a3183b2 (diff) | |
| download | linux-95272641338a32734792fe4b261001847b11ed80.tar.xz | |
ACPI: processor: Use _OSC to convey OSPM processor support information
Change acpi_early_processor_osc() to return a value in case of a
failure and make it static.
Also make it run acpi_processor_osc() for every processor object or
processor device found in the ACPI Namespace (previously, its only purpose
was to work around platform firmware defects on Skylake systems).
Introduce a new function called acpi_early_processor_control_setup() that
will invoke acpi_early_processor_osc() first in order to convey the OS
processor support information to the platform firmware and if that fails,
it will fall back to using _PDC.
Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: Subject and changelog edits, change function return value to bool,
add missing 'static', change messages ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/internal.h')
| -rw-r--r-- | drivers/acpi/internal.h | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index ed2599ae3e83..ced8224d7472 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -152,18 +152,13 @@ int acpi_wakeup_device_init(void); Processor -------------------------------------------------------------------------- */ #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC +void acpi_early_processor_control_setup(void); void acpi_early_processor_set_pdc(void); void acpi_proc_quirk_mwait_check(void); bool processor_physically_present(acpi_handle handle); #else -static inline void acpi_early_processor_set_pdc(void) {} -#endif - -#ifdef CONFIG_X86 -void acpi_early_processor_osc(void); -#else -static inline void acpi_early_processor_osc(void) {} +static inline void acpi_early_processor_control_setup(void) {} #endif /* -------------------------------------------------------------------------- |