14Srgrimes/*- 24Srgrimes * Copyright (c) 1990 The Regents of the University of California. 34Srgrimes * All rights reserved. 44Srgrimes * 54Srgrimes * This code is derived from software contributed to Berkeley by 64Srgrimes * William Jolitz. 74Srgrimes * 84Srgrimes * Redistribution and use in source and binary forms, with or without 94Srgrimes * modification, are permitted provided that the following conditions 104Srgrimes * are met: 114Srgrimes * 1. Redistributions of source code must retain the above copyright 124Srgrimes * notice, this list of conditions and the following disclaimer. 134Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 144Srgrimes * notice, this list of conditions and the following disclaimer in the 154Srgrimes * documentation and/or other materials provided with the distribution. 164Srgrimes * 4. Neither the name of the University nor the names of its contributors 174Srgrimes * may be used to endorse or promote products derived from this software 184Srgrimes * without specific prior written permission. 194Srgrimes * 204Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 214Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 224Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 234Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 244Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 254Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 264Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 274Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 284Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 294Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 304Srgrimes * SUCH DAMAGE. 314Srgrimes * 32557Srgrimes * from: @(#)pcb.h 5.10 (Berkeley) 5/12/91 3350477Speter * $FreeBSD$ 344Srgrimes */ 354Srgrimes 36557Srgrimes#ifndef _I386_PCB_H_ 37557Srgrimes#define _I386_PCB_H_ 38557Srgrimes 394Srgrimes/* 404Srgrimes * Intel 386 process control block 414Srgrimes */ 42145047Speter#ifndef _KERNEL 43145047Speter#include <machine/segments.h> 44145047Speter#endif 452056Swollman#include <machine/npx.h> 464Srgrimes 474Srgrimesstruct pcb { 48235622Siwasaki int pcb_cr0; 49235622Siwasaki int pcb_cr2; 5024690Speter int pcb_cr3; 51235622Siwasaki int pcb_cr4; 5224690Speter int pcb_edi; 5324690Speter int pcb_esi; 5424690Speter int pcb_ebp; 5524690Speter int pcb_esp; 5624690Speter int pcb_ebx; 5724690Speter int pcb_eip; 5848691Sjlemon 5948691Sjlemon int pcb_dr0; 6048691Sjlemon int pcb_dr1; 6148691Sjlemon int pcb_dr2; 6248691Sjlemon int pcb_dr3; 6348691Sjlemon int pcb_dr6; 6448691Sjlemon int pcb_dr7; 6548691Sjlemon 66208833Skib union savefpu pcb_user_save; 67189423Sjhb uint16_t pcb_initial_npxcw; 6889466Sbde u_int pcb_flags; 6910092Sdg#define FP_SOFTFP 0x01 /* process using software fltng pnt emulator */ 7048691Sjlemon#define PCB_DBREGS 0x02 /* process using debug registers */ 71103408Smini#define PCB_NPXINITDONE 0x08 /* fpu state is initialized */ 72106542Sdavidxu#define PCB_VM86CALL 0x10 /* in vm86 call */ 73208833Skib#define PCB_NPXUSERINITDONE 0x20 /* user fpu state is initialized */ 74208833Skib#define PCB_KERNNPX 0x40 /* kernel uses npx */ 75106542Sdavidxu 764Srgrimes caddr_t pcb_onfault; /* copyin/out fault recovery */ 77235622Siwasaki int pcb_ds; 78235622Siwasaki int pcb_es; 79235622Siwasaki int pcb_fs; 8026494Sbde int pcb_gs; 81235622Siwasaki int pcb_ss; 82145034Speter struct segment_descriptor pcb_fsd; 83145034Speter struct segment_descriptor pcb_gsd; 8427993Sdyson struct pcb_ext *pcb_ext; /* optional pcb extension */ 8593264Sdillon int pcb_psl; /* process status long */ 86145025Speter u_long pcb_vm86[2]; /* vm86bios scratch space */ 87208833Skib union savefpu *pcb_save; 88235622Siwasaki 89235622Siwasaki struct region_descriptor pcb_gdt; 90235622Siwasaki struct region_descriptor pcb_idt; 91235622Siwasaki uint16_t pcb_ldt; 92235622Siwasaki uint16_t pcb_tr; 934Srgrimes}; 944Srgrimes 95271999Sjhbstruct susppcb { 96271999Sjhb struct pcb sp_pcb; 97271999Sjhb union savefpu sp_fpususpend; 98271999Sjhb}; 99271999Sjhb 10055205Speter#ifdef _KERNEL 101131905Smarcelstruct trapframe; 102131905Smarcel 103131905Smarcelvoid makectx(struct trapframe *, struct pcb *); 104236772Siwasakiint savectx(struct pcb *) __returns_twice; 105237027Sjkimvoid resumectx(struct pcb *) __fastcall; 1064Srgrimes#endif 107557Srgrimes 108557Srgrimes#endif /* _I386_PCB_H_ */ 109