1/* SPDX-License-Identifier: GPL-2.0-only */ 2 3#include <acpi/acpi_osc.h> 4 5/* 6 * Platform-Wide _OSC Operating System Capabilities 7 * 8 * Arg0: A Buffer containing a UUID 9 * Arg1: An Integer containing a Revision ID of the buffer format 10 * Arg2: An Integer containing a count of entries in Arg3 11 * Arg3: A Buffer containing a list of DWORD capabilities 12 */ 13Method (_OSC, 4, NotSerialized) { 14 CreateDWordField (Arg3, 0, CDW1) 15 If (Arg0 == ToUUID (OSC_SB_UUID)) { 16 /* Don't mask any capability bits off. */ 17 Return (Arg3) 18 } Else { 19 CDW1 |= OSC_CDW1_UNRECOGNIZED_UUID 20 Return (Arg3) 21 } 22} 23