Commit 11e7bf56 authored by Michal Wilczynski's avatar Michal Wilczynski Committed by Rafael J. Wysocki
Browse files

ACPI: processor: Remove acpi_hwp_native_thermal_lvt_osc() 



The workaround for buggy skylake BIOSes is now implemented in
acpi_processor_osc() and acpi_hwp_native_thermal_lvt_osc() has no
callers, so drop it.

Suggested-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarMichal Wilczynski <michal.wilczynski@intel.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 95272641

drivers/acpi/acpi_processor.c

+0 −36
Original line number Diff line number Diff line
@@ -561,7 +561,6 @@ bool __init processor_physically_present(acpi_handle handle) 


/* vendor specific UUID indicating an Intel platform */

static u8 sb_uuid_str[] = "4077A616-290C-47BE-9EBD-D87058713953";

static bool acpi_hwp_native_thermal_lvt_set;



static acpi_status __init acpi_processor_osc(acpi_handle handle, u32 lvl,

					     void *context, void **rv)
@@ -589,41 +588,6 @@ static acpi_status __init acpi_processor_osc(acpi_handle handle, u32 lvl, 
	return AE_OK;

}



static acpi_status __init acpi_hwp_native_thermal_lvt_osc(acpi_handle handle,

							  u32 lvl,

							  void *context,

							  void **rv)

{

	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;

}



static bool __init acpi_early_processor_osc(void)

{

	acpi_status status;