1/*	$OpenBSD: psl.h,v 1.21 2018/07/09 19:20:30 guenther 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 _MACHINE_PSL_H_
39#define _MACHINE_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#define	PSL_USERSTATIC	(PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VM | PSL_VIF | PSL_VIP)
68
69#ifdef _KERNEL
70#include <machine/intr.h>
71
72#ifndef _LOCORE
73
74#include <sys/evcount.h>
75
76/*
77 * Interrupt handler chains.  isa_intr_establish() inserts a handler into
78 * the list.  The handler is called with its (single) argument.
79 */
80
81struct intrhand {
82	int		(*ih_fun)(void *);
83	void		*ih_arg;
84	int		ih_level;
85	int		ih_flags;
86	struct intrhand	*ih_next;
87	int		ih_pin;
88	int		ih_irq;
89	struct evcount	ih_count;
90	int		ih_vec;
91};
92
93extern int intr_shared_edge;	/* This system has shared edge interrupts */
94
95#endif /* _LOCORE */
96#endif /* _KERNEL */
97
98#endif /* !_MACHINE_PSL_H_ */
99