summaryrefslogtreecommitdiff
path: root/drivers/acpi/internal.h
diff options
context:
space:
mode:
authorMichal Wilczynski <michal.wilczynski@intel.com>2023-07-10 17:03:36 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-07-17 15:47:18 +0300
commit95272641338a32734792fe4b261001847b11ed80 (patch)
treee5415644cf4eff1445aef2b1f56920b5a284d91d /drivers/acpi/internal.h
parent5ba30be7fd6e3fdff1e0b01f24173a5e6a3183b2 (diff)
downloadlinux-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.h9
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
/* --------------------------------------------------------------------------