1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_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. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * @OSF_COPYRIGHT@ 30 */ 31/* 32 * Mach Operating System 33 * Copyright (c) 1992-1989 Carnegie Mellon University 34 * All Rights Reserved. 35 * 36 * Permission to use, copy, modify and distribute this software and its 37 * documentation is hereby granted, provided that both the copyright 38 * notice and this permission notice appear in all copies of the 39 * software, derivative works or modified versions, and any portions 40 * thereof, and that both notices appear in supporting documentation. 41 * 42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 45 * 46 * Carnegie Mellon requests users of this software to return to 47 * 48 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 49 * School of Computer Science 50 * Carnegie Mellon University 51 * Pittsburgh PA 15213-3890 52 * 53 * any improvements or extensions that they make and grant Carnegie Mellon 54 * the rights to redistribute these changes. 55 */ 56/* 57 */ 58 59#ifndef _I386_FP_SAVE_H_ 60#define _I386_FP_SAVE_H_ 61 62#ifdef MACH_KERNEL_PRIVATE 63 64 65struct x86_fx_thread_state { 66 unsigned short fx_control; /* control */ 67 unsigned short fx_status; /* status */ 68 unsigned char fx_tag; /* register tags */ 69 unsigned char fx_bbz1; /* better be zero when calling fxrtstor */ 70 unsigned short fx_opcode; 71 unsigned int fx_eip; /* eip instruction */ 72 unsigned short fx_cs; /* cs instruction */ 73 unsigned short fx_bbz2; /* better be zero when calling fxrtstor */ 74 unsigned int fx_dp; /* data address */ 75 unsigned short fx_ds; /* data segment */ 76 unsigned short fx_bbz3; /* better be zero when calling fxrtstor */ 77 unsigned int fx_MXCSR; 78 unsigned int fx_MXCSR_MASK; 79 unsigned short fx_reg_word[8][8]; /* STx/MMx registers */ 80 unsigned short fx_XMM_reg[8][16]; /* XMM0-XMM15 on 64 bit processors */ 81 /* XMM0-XMM7 on 32 bit processors... unused storage reserved */ 82 83 unsigned char fx_reserved[16*5]; /* reserved by intel for future 84 * expansion */ 85 unsigned int fp_valid; 86 unsigned int fp_save_layout; 87 unsigned char fx_pad[8]; 88}__attribute__ ((packed)); 89 90struct x86_avx_thread_state { 91 unsigned short fx_control; /* control */ 92 unsigned short fx_status; /* status */ 93 unsigned char fx_tag; /* register tags */ 94 unsigned char fx_bbz1; /* reserved zero */ 95 unsigned short fx_opcode; 96 unsigned int fx_eip; /* eip instruction */ 97 unsigned short fx_cs; /* cs instruction */ 98 unsigned short fx_bbz2; /* reserved zero */ 99 unsigned int fx_dp; /* data address */ 100 unsigned short fx_ds; /* data segment */ 101 unsigned short fx_bbz3; /* reserved zero */ 102 unsigned int fx_MXCSR; 103 unsigned int fx_MXCSR_MASK; 104 unsigned short fx_reg_word[8][8]; /* STx/MMx registers */ 105 unsigned short fx_XMM_reg[8][16]; /* XMM0-XMM15 on 64 bit processors */ 106 /* XMM0-XMM7 on 32 bit processors... unused storage reserved */ 107 unsigned char fx_reserved[16*5]; /* reserved */ 108 unsigned int fp_valid; 109 unsigned int fp_save_layout; 110 unsigned char fx_pad[8]; 111 112 struct xsave_header { /* Offset 512, xsave header */ 113 uint64_t xsbv; 114 char xhrsvd[56]; 115 }_xh; 116 117 unsigned int x_YMMH_reg[4][16]; /* Offset 576, high YMMs*/ 118}__attribute__ ((packed)); 119 120#endif /* MACH_KERNEL_PRIVATE */ 121/* 122 * Control register 123 */ 124#define FPC_IE 0x0001 /* enable invalid operation 125 exception */ 126#define FPC_IM FPC_IE 127#define FPC_DE 0x0002 /* enable denormalized operation 128 exception */ 129#define FPC_DM FPC_DE 130#define FPC_ZE 0x0004 /* enable zero-divide exception */ 131#define FPC_ZM FPC_ZE 132#define FPC_OE 0x0008 /* enable overflow exception */ 133#define FPC_OM FPC_OE 134#define FPC_UE 0x0010 /* enable underflow exception */ 135#define FPC_PE 0x0020 /* enable precision exception */ 136#define FPC_PC 0x0300 /* precision control: */ 137#define FPC_PC_24 0x0000 /* 24 bits */ 138#define FPC_PC_53 0x0200 /* 53 bits */ 139#define FPC_PC_64 0x0300 /* 64 bits */ 140#define FPC_RC 0x0c00 /* rounding control: */ 141#define FPC_RC_RN 0x0000 /* round to nearest or even */ 142#define FPC_RC_RD 0x0400 /* round down */ 143#define FPC_RC_RU 0x0800 /* round up */ 144#define FPC_RC_CHOP 0x0c00 /* chop */ 145#define FPC_IC 0x1000 /* infinity control (obsolete) */ 146#define FPC_IC_PROJ 0x0000 /* projective infinity */ 147#define FPC_IC_AFF 0x1000 /* affine infinity (std) */ 148 149/* 150 * Status register 151 */ 152#define FPS_IE 0x0001 /* invalid operation */ 153#define FPS_DE 0x0002 /* denormalized operand */ 154#define FPS_ZE 0x0004 /* divide by zero */ 155#define FPS_OE 0x0008 /* overflow */ 156#define FPS_UE 0x0010 /* underflow */ 157#define FPS_PE 0x0020 /* precision */ 158#define FPS_SF 0x0040 /* stack flag */ 159#define FPS_ES 0x0080 /* error summary */ 160#define FPS_C0 0x0100 /* condition code bit 0 */ 161#define FPS_C1 0x0200 /* condition code bit 1 */ 162#define FPS_C2 0x0400 /* condition code bit 2 */ 163#define FPS_TOS 0x3800 /* top-of-stack pointer */ 164#define FPS_TOS_SHIFT 11 165#define FPS_C3 0x4000 /* condition code bit 3 */ 166#define FPS_BUSY 0x8000 /* FPU busy */ 167 168/* 169 * Kind of floating-point support provided by kernel. 170 */ 171#define FP_NO 0 /* no floating point */ 172#define FP_SOFT 1 /* software FP emulator */ 173#define FP_287 2 /* 80287 */ 174#define FP_387 3 /* 80387 or 80486 */ 175#define FP_FXSR 4 /* Fast save/restore SIMD Extension */ 176 177#endif /* _I386_FP_SAVE_H_ */ 178