Annotation of sys/arch/i386/include/psl.h, Revision 1.1.1.1
1.1 nbrk 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_ */
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