diff options
Diffstat (limited to 'drivers/acpi/acpi_processor.c')
| -rw-r--r-- | drivers/acpi/acpi_processor.c | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 163bd3d52acd..8f4d70ae694f 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -624,16 +624,33 @@ static acpi_status __init acpi_hwp_native_thermal_lvt_osc(acpi_handle handle, return AE_OK; } -void __init acpi_early_processor_osc(void) +static bool __init acpi_early_processor_osc(void) { - if (boot_cpu_has(X86_FEATURE_HWP)) { - acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, - acpi_hwp_native_thermal_lvt_osc, - NULL, NULL, NULL); - acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, - acpi_hwp_native_thermal_lvt_osc, - NULL, NULL); + acpi_status status; + + acpi_proc_quirk_mwait_check(); + + status = acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, acpi_processor_osc, NULL, + NULL, NULL); + if (ACPI_FAILURE(status)) + return false; + + status = acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, acpi_processor_osc, + NULL, NULL); + if (ACPI_FAILURE(status)) + return false; + + return true; +} + +void __init acpi_early_processor_control_setup(void) +{ + if (acpi_early_processor_osc()) { + pr_info("_OSC evaluated successfully\n"); + } else { + pr_info("_OSC evaluation failed, trying _PDC\n"); + acpi_early_processor_set_pdc(); } } #endif |