1178172Simp/* $OpenBSD: pcb.h,v 1.3 1998/09/15 10:50:12 pefo Exp $ */ 2178172Simp 3178172Simp/*- 4178172Simp * Copyright (c) 1988 University of Utah. 5178172Simp * Copyright (c) 1992, 1993 6178172Simp * The Regents of the University of California. All rights reserved. 7178172Simp * 8178172Simp * This code is derived from software contributed to Berkeley by 9178172Simp * the Systems Programming Group of the University of Utah Computer 10178172Simp * Science Department and Ralph Campbell. 11178172Simp * 12178172Simp * Redistribution and use in source and binary forms, with or without 13178172Simp * modification, are permitted provided that the following conditions 14178172Simp * are met: 15178172Simp * 1. Redistributions of source code must retain the above copyright 16178172Simp * notice, this list of conditions and the following disclaimer. 17178172Simp * 2. Redistributions in binary form must reproduce the above copyright 18178172Simp * notice, this list of conditions and the following disclaimer in the 19178172Simp * documentation and/or other materials provided with the distribution. 20178172Simp * 4. Neither the name of the University nor the names of its contributors 21178172Simp * may be used to endorse or promote products derived from this software 22178172Simp * without specific prior written permission. 23178172Simp * 24178172Simp * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25178172Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26178172Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27178172Simp * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28178172Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29178172Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30178172Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31178172Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32178172Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33178172Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34178172Simp * SUCH DAMAGE. 35178172Simp * 36178172Simp * from: Utah Hdr: pcb.h 1.13 89/04/23 37178172Simp * from: @(#)pcb.h 8.1 (Berkeley) 6/10/93 38178172Simp * JNPR: pcb.h,v 1.2 2006/08/07 11:51:17 katta 39178172Simp * $FreeBSD$ 40178172Simp */ 41178172Simp 42178172Simp#ifndef _MACHINE_PCB_H_ 43178172Simp#define _MACHINE_PCB_H_ 44178172Simp 45178172Simp/* 46178172Simp * used by switch.S 47178172Simp */ 48211862Sjchandra#define PCB_REG_S0 0 49211862Sjchandra#define PCB_REG_S1 1 50211862Sjchandra#define PCB_REG_S2 2 51211862Sjchandra#define PCB_REG_S3 3 52211862Sjchandra#define PCB_REG_S4 4 53211862Sjchandra#define PCB_REG_S5 5 54211862Sjchandra#define PCB_REG_S6 6 55211862Sjchandra#define PCB_REG_S7 7 56211862Sjchandra#define PCB_REG_SP 8 57211862Sjchandra#define PCB_REG_S8 9 58211862Sjchandra#define PCB_REG_RA 10 59211862Sjchandra#define PCB_REG_SR 11 60211862Sjchandra#define PCB_REG_GP 12 61211862Sjchandra#define PCB_REG_PC 13 62178172Simp 63249882Simp#ifndef LOCORE 64249882Simp#include <machine/frame.h> 65178172Simp 66249882Simp/* 67249882Simp * MIPS process control block 68249882Simp */ 69249882Simpstruct pcb 70249882Simp{ 71249882Simp struct trapframe pcb_regs; /* saved CPU and registers */ 72249882Simp __register_t pcb_context[14]; /* kernel context for resume */ 73249882Simp void *pcb_onfault; /* for copyin/copyout faults */ 74249882Simp register_t pcb_tpc; 75249882Simp}; 76249882Simp 77178172Simp#ifdef _KERNEL 78178172Simpextern struct pcb *curpcb; /* the current running pcb */ 79178172Simp 80178172Simpvoid makectx(struct trapframe *, struct pcb *); 81234785Sdimint savectx(struct pcb *) __returns_twice; 82178172Simp#endif 83249882Simp#endif 84178172Simp 85178172Simp#endif /* !_MACHINE_PCB_H_ */ 86