1#------------------------------------------------------------------------------
2#
3# DisableInterrupts() for AArch64
4#
5# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
6# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
7# Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
8# This program and the accompanying materials
9# are licensed and made available under the terms and conditions of the BSD License
10# which accompanies this distribution.  The full text of the license may be found at
11# http://opensource.org/licenses/bsd-license.php.
12#
13# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
14# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15#
16#------------------------------------------------------------------------------
17
18.text
19.p2align 2
20GCC_ASM_EXPORT(DisableInterrupts)
21
22.set DAIF_WR_IRQ_BIT,   (1 << 1)
23
24#/**
25#  Disables CPU interrupts.
26#
27#**/
28#VOID
29#EFIAPI
30#DisableInterrupts (
31#  VOID
32#  );
33#
34ASM_PFX(DisableInterrupts):
35   msr  daifset, #DAIF_WR_IRQ_BIT
36   ret
37