1/* $NetBSD: pcb.h,v 1.28 2021/03/13 17:14:11 skrll 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_faultptep;
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 mips_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
80#ifndef _KERNEL
81/* Connect the dots for crash(8). */
82vaddr_t db_mach_addr_cpuswitch(void);
83#endif
84
85#endif /*_MIPS_PCB_H_*/