1*c54f35caSApple OSS Distributions/* 2*c54f35caSApple OSS Distributions * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. 3*c54f35caSApple OSS Distributions * 4*c54f35caSApple OSS Distributions * @APPLE_LICENSE_HEADER_START@ 5*c54f35caSApple OSS Distributions * 6*c54f35caSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*c54f35caSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*c54f35caSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*c54f35caSApple OSS Distributions * compliance with the License. Please obtain a copy of the License at 10*c54f35caSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this 11*c54f35caSApple OSS Distributions * file. 12*c54f35caSApple OSS Distributions * 13*c54f35caSApple OSS Distributions * The Original Code and all software distributed under the License are 14*c54f35caSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15*c54f35caSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16*c54f35caSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17*c54f35caSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18*c54f35caSApple OSS Distributions * Please see the License for the specific language governing rights and 19*c54f35caSApple OSS Distributions * limitations under the License. 20*c54f35caSApple OSS Distributions * 21*c54f35caSApple OSS Distributions * @APPLE_LICENSE_HEADER_END@ 22*c54f35caSApple OSS Distributions */ 23*c54f35caSApple OSS Distributions 24*c54f35caSApple OSS Distributions/* Get the cpu_capabilities bit vector out of the comm page */ 25*c54f35caSApple OSS Distributions 26*c54f35caSApple OSS Distributions#define __APPLE_API_PRIVATE 27*c54f35caSApple OSS Distributions#include <machine/cpu_capabilities.h> 28*c54f35caSApple OSS Distributions#undef __APPLE_API_PRIVATE 29*c54f35caSApple OSS Distributions 30*c54f35caSApple OSS Distributions#if defined(__x86_64__) 31*c54f35caSApple OSS Distributions 32*c54f35caSApple OSS Distributions .text 33*c54f35caSApple OSS Distributions .align 2, 0x90 34*c54f35caSApple OSS Distributions .globl __get_cpu_capabilities 35*c54f35caSApple OSS Distributions__get_cpu_capabilities: 36*c54f35caSApple OSS Distributions movq $(_COMM_PAGE_CPU_CAPABILITIES64), %rax 37*c54f35caSApple OSS Distributions movq (%rax), %rax 38*c54f35caSApple OSS Distributions ret 39*c54f35caSApple OSS Distributions 40*c54f35caSApple OSS Distributions#elif defined(__i386__) 41*c54f35caSApple OSS Distributions 42*c54f35caSApple OSS Distributions .text 43*c54f35caSApple OSS Distributions .align 2, 0x90 44*c54f35caSApple OSS Distributions .globl __get_cpu_capabilities 45*c54f35caSApple OSS Distributions__get_cpu_capabilities: 46*c54f35caSApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64, %eax 47*c54f35caSApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64+4, %edx 48*c54f35caSApple OSS Distributions ret 49*c54f35caSApple OSS Distributions 50*c54f35caSApple OSS Distributions#elif defined(__arm__) 51*c54f35caSApple OSS Distributions 52*c54f35caSApple OSS Distributions .text 53*c54f35caSApple OSS Distributions .align 2 54*c54f35caSApple OSS Distributions .globl __get_cpu_capabilities 55*c54f35caSApple OSS Distributions__get_cpu_capabilities: 56*c54f35caSApple OSS Distributions mov r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x000000ff) 57*c54f35caSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x0000ff00) 58*c54f35caSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x00ff0000) 59*c54f35caSApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0xff000000) 60*c54f35caSApple OSS Distributions ldr r0, [r0] 61*c54f35caSApple OSS Distributions bx lr 62*c54f35caSApple OSS Distributions 63*c54f35caSApple OSS Distributions#elif defined(__arm64__) 64*c54f35caSApple OSS Distributions 65*c54f35caSApple OSS Distributions .text 66*c54f35caSApple OSS Distributions .align 2 67*c54f35caSApple OSS Distributions .globl __get_cpu_capabilities 68*c54f35caSApple OSS Distributions__get_cpu_capabilities: 69*c54f35caSApple OSS Distributions ldr x0, Lcommpage_cc_addr 70*c54f35caSApple OSS Distributions ldr x0, [x0] 71*c54f35caSApple OSS Distributions ret 72*c54f35caSApple OSS DistributionsLcommpage_cc_addr: 73*c54f35caSApple OSS Distributions.quad _COMM_PAGE_CPU_CAPABILITIES64 74*c54f35caSApple OSS Distributions 75*c54f35caSApple OSS Distributions#else 76*c54f35caSApple OSS Distributions#error Unsupported architecture 77*c54f35caSApple OSS Distributions#endif 78