1 /* $OpenBSD: psl.h,v 1.16 2004/06/28 01:41:53 aaron 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. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)psl.h 5.2 (Berkeley) 1/18/91
36 */
37
38 #ifndef _I386_PSL_H_
39 #define _I386_PSL_H_
40
41 /*
42 * 386 processor status longword.
43 */
44 #define PSL_C 0x00000001 /* carry flag */
45 #define PSL_PF 0x00000004 /* parity flag */
46 #define PSL_AF 0x00000010 /* auxiliary carry flag */
47 #define PSL_Z 0x00000040 /* zero flag */
48 #define PSL_N 0x00000080 /* sign flag */
49 #define PSL_T 0x00000100 /* trap flag */
50 #define PSL_I 0x00000200 /* interrupt enable flag */
51 #define PSL_D 0x00000400 /* direction flag */
52 #define PSL_V 0x00000800 /* overflow flag */
53 #define PSL_IOPL 0x00003000 /* i/o privilege level */
54 #define PSL_NT 0x00004000 /* nested task */
55 #define PSL_RF 0x00010000 /* resume flag */
56 #define PSL_VM 0x00020000 /* virtual 8086 mode */
57 #define PSL_AC 0x00040000 /* alignment check flag */
58 #define PSL_VIF 0x00080000 /* virtual interrupt enable flag */
59 #define PSL_VIP 0x00100000 /* virtual interrupt pending flag */
60 #define PSL_ID 0x00200000 /* identification flag */
61 #define PSL_XCRYPT 0x40000000 /* VIA xcrypt: operation loaded */
62
63 #define PSL_MBO 0x00000002 /* must be one bits */
64 #define PSL_MBZ 0xffc08028 /* must be zero bits */
65
66 #define PSL_USERSET (PSL_MBO | PSL_I)
67 #ifdef VM86
68 #define PSL_USERSTATIC (PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VIF | PSL_VIP)
69 #else
70 #define PSL_USERSTATIC (PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VM | PSL_VIF | PSL_VIP)
71 #endif
72
73 #ifdef _KERNEL
74 #include <machine/intr.h>
75
76 #ifndef _LOCORE
77
78 #include <sys/evcount.h>
79
80 /*
81 * Interrupt handler chains. isa_intr_establish() inserts a handler into
82 * the list. The handler is called with its (single) argument.
83 */
84
85 struct intrhand {
86 int (*ih_fun)(void *);
87 void *ih_arg;
88 struct intrhand *ih_next;
89 int ih_level;
90 int ih_irq;
91 struct evcount ih_count;
92 };
93
94 #endif /* _LOCORE */
95 #endif /* _KERNEL */
96
97 #endif /* !_I386_PSL_H_ */