intr.h revision 1.16 
1/*	$NetBSD: intr.h,v 1.16 2007/03/11 07:57:05 isaki 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/* spl0 requires checking for software interrupts */
45void	spl0(void);
46
47#define splsoft()	splraise1()
48#define splsoftclock()	splsoft()
49#define splsoftnet()	splsoft()
50#define splsoftserial()	splsoft()
51#define splbio()	splraise3()
52#define splnet()        splraise4()
53#define spltty()        splraise4()
54#define splvm()         splraise4()
55#define splserial()     splraise5()
56#define splclock()      splraise6()
57#define splstatclock()  splclock()
58#define splhigh()       spl7()
59#define splsched()      spl7()
60#define spllock()       spl7()
61
62#define	splnone()	spl0()
63#define	splzs()		splraise5()	/* disallow serial interrupts */
64
65/* watch out for side effects */
66#define splx(s)         ((s) & PSL_IPL ? _spl(s) : spl0())
67
68#define	IPL_NONE	0
69#define	IPL_SOFTCLOCK	1
70#define	IPL_SOFTNET	2
71#define	IPL_SOFTSERIAL	3
72#define	IPL_SOFT	4
73#define	IPL_BIO		5
74#define	IPL_NET		6
75#define	IPL_TTY		7
76#define	IPL_VM		8
77#define	IPL_SERIAL	9
78#define	IPL_CLOCK	10
79#define	IPL_STATCLOCK	IPL_CLOCK
80#define	IPL_HIGH	11
81#define	IPL_SCHED	IPL_HIGH
82#define	IPL_LOCK	IPL_HIGH
83#define	NIPL		12
84
85typedef int ipl_t;
86typedef struct {
87	uint16_t _psl;
88} ipl_cookie_t;
89
90ipl_cookie_t makeiplcookie(ipl_t);
91
92static inline int
93splraiseipl(ipl_cookie_t icookie)
94{
95
96	return _splraise(icookie._psl);
97}
98
99#include <m68k/softintr.h>
100
101#endif /* !_X68K_INTR_H_ */
102