1*d8b80295SApple OSS Distributions/* 2*d8b80295SApple OSS Distributions * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. 3*d8b80295SApple OSS Distributions * 4*d8b80295SApple OSS Distributions * @APPLE_LICENSE_HEADER_START@ 5*d8b80295SApple OSS Distributions * 6*d8b80295SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*d8b80295SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*d8b80295SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*d8b80295SApple OSS Distributions * compliance with the License. Please obtain a copy of the License at 10*d8b80295SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this 11*d8b80295SApple OSS Distributions * file. 12*d8b80295SApple OSS Distributions * 13*d8b80295SApple OSS Distributions * The Original Code and all software distributed under the License are 14*d8b80295SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15*d8b80295SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16*d8b80295SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17*d8b80295SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18*d8b80295SApple OSS Distributions * Please see the License for the specific language governing rights and 19*d8b80295SApple OSS Distributions * limitations under the License. 20*d8b80295SApple OSS Distributions * 21*d8b80295SApple OSS Distributions * @APPLE_LICENSE_HEADER_END@ 22*d8b80295SApple OSS Distributions */ 23*d8b80295SApple OSS Distributions 24*d8b80295SApple OSS Distributions/* Get the cpu_capabilities bit vector out of the comm page */ 25*d8b80295SApple OSS Distributions 26*d8b80295SApple OSS Distributions#define __APPLE_API_PRIVATE 27*d8b80295SApple OSS Distributions#include <machine/cpu_capabilities.h> 28*d8b80295SApple OSS Distributions#undef __APPLE_API_PRIVATE 29*d8b80295SApple OSS Distributions 30*d8b80295SApple OSS Distributions#if defined(__x86_64__) 31*d8b80295SApple OSS Distributions 32*d8b80295SApple OSS Distributions .text 33*d8b80295SApple OSS Distributions .align 2, 0x90 34*d8b80295SApple OSS Distributions .globl __get_cpu_capabilities 35*d8b80295SApple OSS Distributions__get_cpu_capabilities: 36*d8b80295SApple OSS Distributions movq $(_COMM_PAGE_CPU_CAPABILITIES64), %rax 37*d8b80295SApple OSS Distributions movq (%rax), %rax 38*d8b80295SApple OSS Distributions ret 39*d8b80295SApple OSS Distributions 40*d8b80295SApple OSS Distributions#elif defined(__i386__) 41*d8b80295SApple OSS Distributions 42*d8b80295SApple OSS Distributions .text 43*d8b80295SApple OSS Distributions .align 2, 0x90 44*d8b80295SApple OSS Distributions .globl __get_cpu_capabilities 45*d8b80295SApple OSS Distributions__get_cpu_capabilities: 46*d8b80295SApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64, %eax 47*d8b80295SApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64+4, %edx 48*d8b80295SApple OSS Distributions ret 49*d8b80295SApple OSS Distributions 50*d8b80295SApple OSS Distributions#elif defined(__arm__) 51*d8b80295SApple OSS Distributions 52*d8b80295SApple OSS Distributions .text 53*d8b80295SApple OSS Distributions .align 2 54*d8b80295SApple OSS Distributions .globl __get_cpu_capabilities 55*d8b80295SApple OSS Distributions__get_cpu_capabilities: 56*d8b80295SApple OSS Distributions mov r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x000000ff) 57*d8b80295SApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x0000ff00) 58*d8b80295SApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x00ff0000) 59*d8b80295SApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0xff000000) 60*d8b80295SApple OSS Distributions ldr r0, [r0] 61*d8b80295SApple OSS Distributions bx lr 62*d8b80295SApple OSS Distributions 63*d8b80295SApple OSS Distributions#elif defined(__arm64__) 64*d8b80295SApple OSS Distributions 65*d8b80295SApple OSS Distributions .text 66*d8b80295SApple OSS Distributions .align 2 67*d8b80295SApple OSS Distributions .globl __get_cpu_capabilities 68*d8b80295SApple OSS Distributions__get_cpu_capabilities: 69*d8b80295SApple OSS Distributions ldr x0, Lcommpage_cc_addr 70*d8b80295SApple OSS Distributions ldr x0, [x0] 71*d8b80295SApple OSS Distributions ret 72*d8b80295SApple OSS DistributionsLcommpage_cc_addr: 73*d8b80295SApple OSS Distributions.quad _COMM_PAGE_CPU_CAPABILITIES64 74*d8b80295SApple OSS Distributions 75*d8b80295SApple OSS Distributions#else 76*d8b80295SApple OSS Distributions#error Unsupported architecture 77*d8b80295SApple OSS Distributions#endif 78