1*f6217f89SApple OSS Distributions/* 2*f6217f89SApple OSS Distributions * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. 3*f6217f89SApple OSS Distributions * 4*f6217f89SApple OSS Distributions * @APPLE_LICENSE_HEADER_START@ 5*f6217f89SApple OSS Distributions * 6*f6217f89SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*f6217f89SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*f6217f89SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*f6217f89SApple OSS Distributions * compliance with the License. Please obtain a copy of the License at 10*f6217f89SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this 11*f6217f89SApple OSS Distributions * file. 12*f6217f89SApple OSS Distributions * 13*f6217f89SApple OSS Distributions * The Original Code and all software distributed under the License are 14*f6217f89SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15*f6217f89SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16*f6217f89SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17*f6217f89SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18*f6217f89SApple OSS Distributions * Please see the License for the specific language governing rights and 19*f6217f89SApple OSS Distributions * limitations under the License. 20*f6217f89SApple OSS Distributions * 21*f6217f89SApple OSS Distributions * @APPLE_LICENSE_HEADER_END@ 22*f6217f89SApple OSS Distributions */ 23*f6217f89SApple OSS Distributions 24*f6217f89SApple OSS Distributions/* Get the cpu_capabilities bit vector out of the comm page */ 25*f6217f89SApple OSS Distributions 26*f6217f89SApple OSS Distributions#define __APPLE_API_PRIVATE 27*f6217f89SApple OSS Distributions#include <machine/cpu_capabilities.h> 28*f6217f89SApple OSS Distributions#undef __APPLE_API_PRIVATE 29*f6217f89SApple OSS Distributions 30*f6217f89SApple OSS Distributions#if defined(__x86_64__) 31*f6217f89SApple OSS Distributions 32*f6217f89SApple OSS Distributions .text 33*f6217f89SApple OSS Distributions .align 2, 0x90 34*f6217f89SApple OSS Distributions .globl __get_cpu_capabilities 35*f6217f89SApple OSS Distributions__get_cpu_capabilities: 36*f6217f89SApple OSS Distributions movq $(_COMM_PAGE_CPU_CAPABILITIES64), %rax 37*f6217f89SApple OSS Distributions movq (%rax), %rax 38*f6217f89SApple OSS Distributions ret 39*f6217f89SApple OSS Distributions 40*f6217f89SApple OSS Distributions#elif defined(__i386__) 41*f6217f89SApple OSS Distributions 42*f6217f89SApple OSS Distributions .text 43*f6217f89SApple OSS Distributions .align 2, 0x90 44*f6217f89SApple OSS Distributions .globl __get_cpu_capabilities 45*f6217f89SApple OSS Distributions__get_cpu_capabilities: 46*f6217f89SApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64, %eax 47*f6217f89SApple OSS Distributions movl _COMM_PAGE_CPU_CAPABILITIES64+4, %edx 48*f6217f89SApple OSS Distributions ret 49*f6217f89SApple OSS Distributions 50*f6217f89SApple OSS Distributions#elif defined(__arm__) 51*f6217f89SApple OSS Distributions 52*f6217f89SApple OSS Distributions .text 53*f6217f89SApple OSS Distributions .align 2 54*f6217f89SApple OSS Distributions .globl __get_cpu_capabilities 55*f6217f89SApple OSS Distributions__get_cpu_capabilities: 56*f6217f89SApple OSS Distributions mov r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x000000ff) 57*f6217f89SApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x0000ff00) 58*f6217f89SApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0x00ff0000) 59*f6217f89SApple OSS Distributions orr r0, r0, #(_COMM_PAGE_CPU_CAPABILITIES & 0xff000000) 60*f6217f89SApple OSS Distributions ldr r0, [r0] 61*f6217f89SApple OSS Distributions bx lr 62*f6217f89SApple OSS Distributions 63*f6217f89SApple OSS Distributions#elif defined(__arm64__) 64*f6217f89SApple OSS Distributions 65*f6217f89SApple OSS Distributions .text 66*f6217f89SApple OSS Distributions .align 2 67*f6217f89SApple OSS Distributions .globl __get_cpu_capabilities 68*f6217f89SApple OSS Distributions__get_cpu_capabilities: 69*f6217f89SApple OSS Distributions ldr x0, Lcommpage_cc_addr 70*f6217f89SApple OSS Distributions ldr x0, [x0] 71*f6217f89SApple OSS Distributions ret 72*f6217f89SApple OSS DistributionsLcommpage_cc_addr: 73*f6217f89SApple OSS Distributions.quad _COMM_PAGE_CPU_CAPABILITIES64 74*f6217f89SApple OSS Distributions 75*f6217f89SApple OSS Distributions#else 76*f6217f89SApple OSS Distributions#error Unsupported architecture 77*f6217f89SApple OSS Distributions#endif 78