intr.h revision 1.4 
1/*	$NetBSD: intr.h,v 1.4 1999/09/23 15:06:37 minoura Exp $	*/
2
3/*
4 *
5 * Copyright (c) 1998 NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Minoura Makoto and Jason R. Thorpe.
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 Charles D. Cranor and
22 *      Washington University.
23 * 4. The name of the author may not be used to endorse or promote products
24 *    derived from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
28 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
29 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
31 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
35 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 */
37
38#ifndef _X68K_INTR_H_
39#define	_X68K_INTR_H_
40
41#include <machine/psl.h>
42
43#if defined(_KERNEL) && !defined(_LOCORE)
44
45/* spl0 requires checking for software interrupts */
46void	spl0 __P((void));
47
48#define splnone()       spl0()
49#define spllowersoftclock()  spl1()  /* disallow softclock */
50#define splsoftclock()  splraise1()  /* disallow softclock */
51#define splsoftnet()	splraise1()	/* disallow softnet */
52#define splnet()        _splraise(PSL_S|PSL_IPL4) /* disallow network */
53#define splbio()        _splraise(PSL_S|PSL_IPL3) /* disallow block I/O */
54#define splimp()        _splraise(PSL_S|PSL_IPL4) /* disallow imput */
55#define spltty()        _splraise(PSL_S|PSL_IPL4) /* disallow tty interrupts */
56#define splzs()         splraise5()	/* disallow serial interrupts */
57#define splclock()      splraise6()	/* disallow clock interrupt */
58#define splstatclock()  splraise6()	/* disallow clock interrupt */
59#define splvm()         _splraise(PSL_S|PSL_IPL4) /* disallow virtual memory operations */
60#define splhigh()       spl7()	/* disallow everything */
61#define splsched()      spl7()	/* disallow scheduling */
62
63/* watch out for side effects */
64#define splx(s)         ((s) & PSL_IPL ? _spl(s) : spl0())
65
66/*
67 * simulated software interrupt register
68 */
69extern unsigned char ssir;
70
71#define SIR_NET		0x1
72#define SIR_CLOCK	0x2
73#define SIR_SERIAL	0x4
74#define SIR_KBD		0x8
75
76#define siroff(x)	ssir &= ~(x)
77#define setsoftnet()	ssir |= SIR_NET
78#define setsoftclock()	ssir |= SIR_CLOCK
79#define setsoftserial() ssir |= SIR_SERIAL
80#define setsoftkbd()    ssir |= SIR_KBD
81
82#endif /* _KERNEL && ! _LOCORE */
83#endif
84