1/*	$NetBSD: pcb.h,v 1.23 2011/02/20 07:45:47 matt Exp $	*/
2
3/*
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1992, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * the Systems Programming Group of the University of Utah Computer
10 * Science Department and Ralph Campbell.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * from: Utah Hdr: pcb.h 1.13 89/04/23
37 *
38 *	@(#)pcb.h	8.1 (Berkeley) 6/10/93
39 */
40
41#ifndef _MIPS_PCB_H_
42#define	_MIPS_PCB_H_
43
44#include <mips/types.h>
45#include <mips/reg.h>
46
47struct pcb_faultinfo {
48	void *pfi_faultpte;
49	vaddr_t pfi_faultaddr;
50	u_int pfi_repeats;
51	pid_t pfi_lastpid;
52	uint8_t pfi_faulttype;
53};
54
55/*
56 * MIPS process control block
57 */
58struct pcb {
59	label_t pcb_context;		/* kernel context for resume */
60	void *	pcb_onfault;		/* for copyin/copyout faults */
61	uint32_t pcb_ppl;		/* previous priority level */
62	struct fpreg pcb_fpregs;	/* saved floating point registers */
63	struct dspreg pcb_dspregs;	/* saved DSP registers */
64	struct pcb_faultinfo pcb_faultinfo;
65};
66
67/*
68 * The pcb is augmented with machine-dependent additional data for
69 * core dumps.
70 */
71struct md_coredump {
72	mips_reg_t md_regs[38];
73	struct fpreg md_fpregs;
74};
75
76#ifdef _KERNEL
77#define	PCB_FSR(pcb)	((pcb)->pcb_fpregs.r_regs[_R_FSR - _FPBASE])
78#endif
79#endif /*_MIPS_PCB_H_*/
80