psl.h revision 1.12 
1/*	$OpenBSD: psl.h,v 1.12 2002/03/14 01:26:33 millert Exp $	*/
2/*	$NetBSD: psl.h,v 1.30 1996/05/13 01:28:05 mycroft Exp $	*/
3
4/*-
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * William Jolitz.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *	This product includes software developed by the University of
22 *	California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 *    may be used to endorse or promote products derived from this software
25 *    without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 *	@(#)psl.h	5.2 (Berkeley) 1/18/91
40 */
41
42#ifndef _I386_PSL_H_
43#define _I386_PSL_H_
44
45/*
46 * 386 processor status longword.
47 */
48#define	PSL_C		0x00000001	/* carry flag */
49#define	PSL_PF		0x00000004	/* parity flag */
50#define	PSL_AF		0x00000010	/* auxiliary carry flag */
51#define	PSL_Z		0x00000040	/* zero flag */
52#define	PSL_N		0x00000080	/* sign flag */
53#define	PSL_T		0x00000100	/* trap flag */
54#define	PSL_I		0x00000200	/* interrupt enable flag */
55#define	PSL_D		0x00000400	/* direction flag */
56#define	PSL_V		0x00000800	/* overflow flag */
57#define	PSL_IOPL	0x00003000	/* i/o privilege level */
58#define	PSL_NT		0x00004000	/* nested task */
59#define	PSL_RF		0x00010000	/* resume flag */
60#define	PSL_VM		0x00020000	/* virtual 8086 mode */
61#define	PSL_AC		0x00040000	/* alignment check flag */
62#define	PSL_VIF		0x00080000	/* virtual interrupt enable flag */
63#define	PSL_VIP		0x00100000	/* virtual interrupt pending flag */
64#define	PSL_ID		0x00200000	/* identification flag */
65
66#define	PSL_MBO		0x00000002	/* must be one bits */
67#define	PSL_MBZ		0xffc08028	/* must be zero bits */
68
69#define	PSL_USERSET	(PSL_MBO | PSL_I)
70#ifdef VM86
71#define	PSL_USERSTATIC	(PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VIF | PSL_VIP)
72#else
73#define	PSL_USERSTATIC	(PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VM | PSL_VIF | PSL_VIP)
74#endif
75
76#ifdef _KERNEL
77#include <machine/intr.h>
78
79#ifndef _LOCORE
80
81/*
82 * Interrupt handler chains.  isa_intr_establish() inserts a handler into
83 * the list.  The handler is called with its (single) argument.
84 */
85
86struct intrhand {
87	int	(*ih_fun)(void *);
88	void	*ih_arg;
89	u_long	ih_count;
90	struct	intrhand *ih_next;
91	int	ih_level;
92	int	ih_irq;
93	char	*ih_what;
94};
95
96#endif /* _LOCORE */
97#endif /* _KERNEL */
98
99#endif /* !_I386_PSL_H_ */
100