1/* $OpenBSD: proc.h,v 1.11 2017/04/13 03:52:25 guenther Exp $ */
2
3/*
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)proc.h 8.1 (Berkeley) 6/10/93
35 */
36
37#ifndef _MIPS64_PROC_H_
38#define _MIPS64_PROC_H_
39
40/*
41 * Machine-dependent part of the proc structure.
42 */
43struct mdproc {
44 struct trapframe *md_regs; /* registers on current frame */
45 volatile int md_astpending; /* AST pending for this process */
46 int md_flags; /* machine-dependent flags */
47 vaddr_t md_uarea; /* allocated uarea virtual addr */
48 void *md_tcb; /* user-space thread-control-block */
49
50 /* ptrace fields */
51 vaddr_t md_ss_addr; /* single step address */
52 uint32_t md_ss_instr; /* saved single step instruction */
53
54 /* fpu emulation fields */
55 vaddr_t md_fppgva; /* vaddr of the branch emulation page */
56 vaddr_t md_fpbranchva; /* vaddr of fp branch destination */
57 vaddr_t md_fpslotva; /* initial vaddr of delay slot */
58
59 int32_t md_obsolete[10]; /* Were RM7000-specific data. */
60};
61
62/*
63 * Values for md_flags.
64 * MDP_FPUSED has two meanings: if the floating point hardware (coprocessor
65 * #1) is available, it means it has been used; if there is no floating
66 * point hardware, it means the process is currently running a duplicated
67 * delay slot, created by the branch emulation logic.
68 */
69#define MDP_FPUSED 0x00000001 /* floating point coprocessor used */
70#define MDP_PERF 0x00010000 /* Performance counter used */
71#define MDP_WATCH1 0x00020000 /* Watch register 1 used */
72#define MDP_WATCH2 0x00040000 /* Watch register 1 used */
73#define MDP_FORKSAVE 0x0000ffff /* Flags to save when forking */
74
75#endif /* !_MIPS64_PROC_H_ */