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/* $OpenBSD: pcb.h,v 1.3 1998/09/15 10:50:12 pefo Exp $ */
/*-
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department and Ralph Campbell.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah Hdr: pcb.h 1.13 89/04/23
* from: @(#)pcb.h 8.1 (Berkeley) 6/10/93
* JNPR: pcb.h,v 1.2 2006/08/07 11:51:17 katta
* $FreeBSD: release/9.1.0/sys/mips/include/pcb.h 235539 2012-05-17 10:25:34Z dim $
*/
#ifndef _MACHINE_PCB_H_
#define _MACHINE_PCB_H_
#include <machine/frame.h>
/*
* MIPS process control block
*/
struct pcb
{
struct trapframe pcb_regs; /* saved CPU and registers */
__register_t pcb_context[14]; /* kernel context for resume */
void *pcb_onfault; /* for copyin/copyout faults */
register_t pcb_tpc;
};
/* these match the regnum's in regnum.h
* used by switch.S
*/
#define PCB_REG_S0 0
#define PCB_REG_S1 1
#define PCB_REG_S2 2
#define PCB_REG_S3 3
#define PCB_REG_S4 4
#define PCB_REG_S5 5
#define PCB_REG_S6 6
#define PCB_REG_S7 7
#define PCB_REG_SP 8
#define PCB_REG_S8 9
#define PCB_REG_RA 10
#define PCB_REG_SR 11
#define PCB_REG_GP 12
#define PCB_REG_PC 13
#ifdef _KERNEL
extern struct pcb *curpcb; /* the current running pcb */
void makectx(struct trapframe *, struct pcb *);
int savectx(struct pcb *) __returns_twice;
#endif
#endif /* !_MACHINE_PCB_H_ */