This commit represents a major revamping of the clock interrupt and timebase
[dragonfly.git] / sys / cpu / i386 / include / frame.h
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1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. 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: @(#)frame.h 5.2 (Berkeley) 1/18/91
37 * $FreeBSD: src/sys/i386/include/frame.h,v 1.20 1999/09/29 15:06:22 marcel Exp $
88c4d2f6 38 * $DragonFly: src/sys/cpu/i386/include/frame.h,v 1.4 2004/01/30 05:42:16 dillon Exp $
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39 */
40
41#ifndef _MACHINE_FRAME_H_
42#define _MACHINE_FRAME_H_ 1
43
44/*
45 * System stack frames.
46 */
47
48/*
49 * Exception/Trap Stack Frame
50 */
51
52struct trapframe {
53 int tf_fs;
54 int tf_es;
55 int tf_ds;
56 int tf_edi;
57 int tf_esi;
58 int tf_ebp;
59 int tf_isp;
60 int tf_ebx;
61 int tf_edx;
62 int tf_ecx;
63 int tf_eax;
64 int tf_trapno;
65 /* below portion defined in 386 hardware */
66 int tf_err;
67 int tf_eip;
68 int tf_cs;
69 int tf_eflags;
70 /* below only when crossing rings (e.g. user to kernel) */
71 int tf_esp;
72 int tf_ss;
73};
74
75/* Superset of trap frame, for traps from virtual-8086 mode */
76
77struct trapframe_vm86 {
78 int tf_fs;
79 int tf_es;
80 int tf_ds;
81 int tf_edi;
82 int tf_esi;
83 int tf_ebp;
84 int tf_isp;
85 int tf_ebx;
86 int tf_edx;
87 int tf_ecx;
88 int tf_eax;
89 int tf_trapno;
90 /* below portion defined in 386 hardware */
91 int tf_err;
92 int tf_eip;
93 int tf_cs;
94 int tf_eflags;
95 /* below only when crossing rings (e.g. user to kernel) */
96 int tf_esp;
97 int tf_ss;
98 /* below only when switching out of VM86 mode */
99 int tf_vm86_es;
100 int tf_vm86_ds;
101 int tf_vm86_fs;
102 int tf_vm86_gs;
103};
104
105/* Interrupt stack frame */
106
107struct intrframe {
108 int if_vec;
109 int if_ppl;
110 int if_fs;
111 int if_es;
112 int if_ds;
113 int if_edi;
114 int if_esi;
115 int if_ebp;
116 int :32;
117 int if_ebx;
118 int if_edx;
119 int if_ecx;
120 int if_eax;
121 int :32; /* for compat with trap frame - trapno */
122 int :32; /* for compat with trap frame - err */
123 /* below portion defined in 386 hardware */
124 int if_eip;
125 int if_cs;
126 int if_eflags;
127 /* below only when crossing rings (e.g. user to kernel) */
128 int if_esp;
129 int if_ss;
130};
131
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132int kdb_trap (int, int, struct trapframe *);
133extern int (*pmath_emulate) (struct trapframe *);
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134
135#define INTR_TO_TRAPFRAME(frame) ((struct trapframe *)&(frame)->if_fs)
136
137#endif /* _MACHINE_FRAME_H_ */