intr.h revision 1.7 
1/*	$NetBSD: intr.h,v 1.7 2001/01/14 02:00:43 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Minoura Makoto and Jason R. Thorpe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#ifndef _X68K_INTR_H_
40#define	_X68K_INTR_H_
41
42#include <machine/psl.h>
43
44#if defined(_KERNEL) && !defined(_LOCORE)
45
46/* spl0 requires checking for software interrupts */
47void	spl0 __P((void));
48
49#define splnone()       spl0()
50#define spllowersoftclock()  spl1()  /* disallow softclock */
51#define splsoftclock()  splraise1()  /* disallow softclock */
52#define splsoftnet()	splraise1()	/* disallow softnet */
53#define splnet()        _splraise(PSL_S|PSL_IPL4) /* disallow network */
54#define splbio()        _splraise(PSL_S|PSL_IPL3) /* disallow block I/O */
55#define spltty()        _splraise(PSL_S|PSL_IPL4) /* disallow tty interrupts */
56#define splimp()        _splraise(PSL_S|PSL_IPL4) /* disallow vm */
57#define splvm()         _splraise(PSL_S|PSL_IPL4) /* disallow vm */
58#define splzs()         splraise5()	/* disallow serial interrupts */
59#define splclock()      splraise6()	/* disallow clock interrupt */
60#define splstatclock()  splraise6()	/* disallow clock interrupt */
61#define splhigh()       spl7()	/* disallow everything */
62#define splsched()      spl7()	/* disallow scheduling */
63#define spllock()	spl7()	/* disallow scheduling */
64
65/* watch out for side effects */
66#define splx(s)         ((s) & PSL_IPL ? _spl(s) : spl0())
67
68/*
69 * simulated software interrupt register
70 */
71extern unsigned char ssir;
72
73#define SIR_NET		0x1
74#define SIR_CLOCK	0x2
75#define SIR_SERIAL	0x4
76#define SIR_KBD		0x8
77
78#define siroff(x)	ssir &= ~(x)
79#define setsoftnet()	ssir |= SIR_NET
80#define setsoftclock()	ssir |= SIR_CLOCK
81#define setsoftserial() ssir |= SIR_SERIAL
82#define setsoftkbd()    ssir |= SIR_KBD
83
84#endif /* _KERNEL && ! _LOCORE */
85#endif
86