projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 2d21ac55 | 1 | /* |
| 6d2010ae | 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. |
| 2d21ac55 A |
3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | ||
| 6d2010ae A |
24 | /* Get the cpu_capabilities bit vector out of the comm page */ |
| 25 | ||
| 26 | #define __APPLE_API_PRIVATE | |
| 2d21ac55 | 27 | #include <machine/cpu_capabilities.h> |
| 6d2010ae | 28 | #undef __APPLE_API_PRIVATE |
| 2d21ac55 | 29 | |
| 6d2010ae | 30 | #if defined(__x86_64__) |
| 2d21ac55 A |
31 | |
| 32 | .text | |
| 6d2010ae A |
33 | .align 2, 0x90 |
| 34 | .globl __get_cpu_capabilities | |
| 35 | __get_cpu_capabilities: | |
| bd504ef0 A |
36 | movq $(_COMM_PAGE_CPU_CAPABILITIES64), %rax |
| 37 | movq (%rax), %rax | |
| 6d2010ae A |
38 | ret |
| 39 | ||
| 40 | #elif defined(__i386__) | |
| 41 | ||
| 42 | .text | |
| 43 | .align 2, 0x90 | |
| 44 | .globl __get_cpu_capabilities | |
| 45 | __get_cpu_capabilities: | |
| bd504ef0 A |
46 | movl _COMM_PAGE_CPU_CAPABILITIES64, %eax |
| 47 | movl _COMM_PAGE_CPU_CAPABILITIES64+4, %edx | |
| 6d2010ae A |
48 | ret |
| 49 | ||
| 5ba3f43e A |
50 | #elif defined(__arm__) |
| 51 | ||
| 52 | .text | |
| 53 | .align 2 | |
| 54 | .globl __get_cpu_capabilities | |
| 55 | __get_cpu_capabilities: | |
| 56 | mov r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x000000ff) | |
| 57 | orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x0000ff00) | |
| 58 | orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x00ff0000) | |
| 59 | orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0xff000000) | |
| 60 | ldr r0, [r0] | |
| 61 | bx lr | |
| 62 | ||
| 63 | #elif defined(__arm64__) | |
| 64 | ||
| 65 | .text | |
| 66 | .align 2 | |
| 67 | .globl __get_cpu_capabilities | |
| 68 | __get_cpu_capabilities: | |
| 69 | ldr x0, Lcommpage_cc_addr | |
| f427ee49 | 70 | ldr x0, [x0] |
| 5ba3f43e A |
71 | ret |
| 72 | Lcommpage_cc_addr: | |
| f427ee49 | 73 | .quad _COMM_PAGE_CPU_CAPABILITIES64 |
| 5ba3f43e | 74 | |
| 316670eb A |
75 | #else |
| 76 | #error Unsupported architecture | |
| 6d2010ae | 77 | #endif |