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990e25aa | 1 | #------------------------------------------------------------------------------ \r |
2 | #\r | |
3 | # CpuSleep() for ARM\r | |
4 | #\r | |
5 | # Copyright (c) 2006 - 2009, Intel Corporation<BR>\r | |
6 | # Portions copyright (c) 2008-2009 Apple Inc.<BR>\r | |
7 | # All rights reserved. This program and the accompanying materials\r | |
8 | # are licensed and made available under the terms and conditions of the BSD License\r | |
9 | # which accompanies this distribution. The full text of the license may be found at\r | |
10 | # http://opensource.org/licenses/bsd-license.php\r | |
11 | #\r | |
12 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | #\r | |
15 | #------------------------------------------------------------------------------\r | |
16 | \r | |
17 | .text\r | |
18 | .p2align 2\r | |
19 | .globl ASM_PFX(CpuSleep)\r | |
20 | \r | |
21 | #/**\r | |
22 | # Places the CPU in a sleep state until an interrupt is received.\r | |
23 | #\r | |
24 | # Places the CPU in a sleep state until an interrupt is received. If interrupts\r | |
25 | # are disabled prior to calling this function, then the CPU will be placed in a\r | |
26 | # sleep state indefinitely.\r | |
27 | #\r | |
28 | #**/\r | |
29 | #VOID\r | |
30 | #EFIAPI\r | |
31 | #CpuSleep (\r | |
32 | # VOID\r | |
33 | # );\r | |
34 | #\r | |
35 | ASM_PFX(CpuSleep):\r | |
36 | mov r0,#0\r | |
37 | mcr p15,0,r0,c7,c0,4 ;Wait for Interrupt instruction\r | |
38 | bx lr\r |