1 //------------------------------------------------------------------------------
3 // Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
4 // Copyright (c) 2011-2013, ARM Limited. All rights reserved.
6 // This program and the accompanying materials
7 // are licensed and made available under the terms and conditions of the BSD License
8 // which accompanies this distribution. The full text of the license may be found at
9 // http://opensource.org/licenses/bsd-license.php
11 // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14 //------------------------------------------------------------------------------
18 EXPORT ArmHasMpExtensions
19 EXPORT ArmEnableAsynchronousAbort
20 EXPORT ArmDisableAsynchronousAbort
25 EXPORT ArmEnableInterrupts
26 EXPORT ArmDisableInterrupts
32 AREA ArmLibSupportV7, CODE, READONLY
35 //------------------------------------------------------------------------------
39 // Get Multiprocessing extension (bit31) & U bit (bit30)
40 and R0, R0, #0xC0000000
41 // if (bit31 == 1) && (bit30 == 0) then the processor is part of a multiprocessor system
49 // Get Multiprocessing extension (bit31)
53 ArmEnableAsynchronousAbort
58 ArmDisableAsynchronousAbort
98 mcr p15,2,r0,c0,c0,0 ; Write Cache Size Selection Register (CSSELR)
100 mrc p15,1,r0,c0,c0,0 ; Read current CP15 Cache Size ID Register (CCSIDR)
108 mrc p15,1,r0,c0,c0,1 ; Read CP15 Cache Level ID Register
112 mrc p15, 0, r0, c1, c1, 2
116 mcr p15, 0, r0, c1, c1, 2