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 47294283Sjhb/* 48294283Sjhb * NB: The fields marked with (*) are used by kernel debuggers. Their 49294283Sjhb * ABI should be preserved. 50294283Sjhb */ 514Srgrimesstruct pcb { 52294283Sjhb int pcb_edi; /* (*) */ 53294283Sjhb int pcb_esi; /* (*) */ 54294283Sjhb int pcb_ebp; /* (*) */ 55294283Sjhb int pcb_esp; /* (*) */ 56294283Sjhb int pcb_ebx; /* (*) */ 57294283Sjhb int pcb_eip; /* (*) */ 58276084Sjhb struct segment_descriptor pcb_fsd; 59276084Sjhb struct segment_descriptor pcb_gsd; 60276084Sjhb int pcb_ds; 61276084Sjhb int pcb_es; 62276084Sjhb int pcb_fs; 63276084Sjhb int pcb_gs; 64276084Sjhb int pcb_ss; 65276084Sjhb int pcb_cr0; 66276084Sjhb int pcb_cr2; 67276084Sjhb int pcb_cr3; 68276084Sjhb int pcb_cr4; 6948691Sjlemon int pcb_dr0; 7048691Sjlemon int pcb_dr1; 7148691Sjlemon int pcb_dr2; 7248691Sjlemon int pcb_dr3; 7348691Sjlemon int pcb_dr6; 7448691Sjlemon int pcb_dr7; 7548691Sjlemon 76276084Sjhb struct region_descriptor pcb_gdt; 77276084Sjhb struct region_descriptor pcb_idt; 78276084Sjhb uint16_t pcb_ldt; 79276084Sjhb uint16_t pcb_tr; 80276084Sjhb 8189466Sbde u_int pcb_flags; 8248691Sjlemon#define PCB_DBREGS 0x02 /* process using debug registers */ 83103408Smini#define PCB_NPXINITDONE 0x08 /* fpu state is initialized */ 84106542Sdavidxu#define PCB_VM86CALL 0x10 /* in vm86 call */ 85208833Skib#define PCB_NPXUSERINITDONE 0x20 /* user fpu state is initialized */ 86208833Skib#define PCB_KERNNPX 0x40 /* kernel uses npx */ 87106542Sdavidxu 88276084Sjhb uint16_t pcb_initial_npxcw; 89276084Sjhb 904Srgrimes caddr_t pcb_onfault; /* copyin/out fault recovery */ 9127993Sdyson struct pcb_ext *pcb_ext; /* optional pcb extension */ 9293264Sdillon int pcb_psl; /* process status long */ 93145025Speter u_long pcb_vm86[2]; /* vm86bios scratch space */ 94208833Skib union savefpu *pcb_save; 95235622Siwasaki 96276084Sjhb uint32_t pcb_pad[10]; 974Srgrimes}; 984Srgrimes 99276084Sjhb/* Per-CPU state saved during suspend and resume. */ 100271999Sjhbstruct susppcb { 101271999Sjhb struct pcb sp_pcb; 102276084Sjhb 103276084Sjhb /* fpu context for suspend/resume */ 104276084Sjhb void *sp_fpususpend; 105271999Sjhb}; 106271999Sjhb 10755205Speter#ifdef _KERNEL 108131905Smarcelstruct trapframe; 109131905Smarcel 110131905Smarcelvoid makectx(struct trapframe *, struct pcb *); 111236772Siwasakiint savectx(struct pcb *) __returns_twice; 112237027Sjkimvoid resumectx(struct pcb *) __fastcall; 1134Srgrimes#endif 114557Srgrimes 115557Srgrimes#endif /* _I386_PCB_H_ */ 116