diff options
Diffstat (limited to 'drivers/acpi/acpi_processor.c')
| -rw-r--r-- | drivers/acpi/acpi_processor.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 9f77943653fb..6979186dbd4b 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -491,58 +491,6 @@ static void acpi_processor_remove(struct acpi_device *device) } #endif /* CONFIG_ACPI_HOTPLUG_CPU */ -#ifdef CONFIG_X86 -static bool acpi_hwp_native_thermal_lvt_set; -static acpi_status __init acpi_hwp_native_thermal_lvt_osc(acpi_handle handle, - u32 lvl, - void *context, - void **rv) -{ - u8 sb_uuid_str[] = "4077A616-290C-47BE-9EBD-D87058713953"; - u32 capbuf[2]; - struct acpi_osc_context osc_context = { - .uuid_str = sb_uuid_str, - .rev = 1, - .cap.length = 8, - .cap.pointer = capbuf, - }; - - if (acpi_hwp_native_thermal_lvt_set) - return AE_CTRL_TERMINATE; - - capbuf[0] = 0x0000; - capbuf[1] = 0x1000; /* set bit 12 */ - - if (ACPI_SUCCESS(acpi_run_osc(handle, &osc_context))) { - if (osc_context.ret.pointer && osc_context.ret.length > 1) { - u32 *capbuf_ret = osc_context.ret.pointer; - - if (capbuf_ret[1] & 0x1000) { - acpi_handle_info(handle, - "_OSC native thermal LVT Acked\n"); - acpi_hwp_native_thermal_lvt_set = true; - } - } - kfree(osc_context.ret.pointer); - } - - return AE_OK; -} - -void __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); - } -} -#endif - /* * The following ACPI IDs are known to be suitable for representing as * processor devices. |
