intr.h revision 1.7 
1/* $NetBSD: intr.h,v 1.7 2007/03/04 02:23:16 tsutsui Exp $ */
2
3/*-
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tohru Nishimura.
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 _MACHINE_INTR_H
40#define _MACHINE_INTR_H
41
42#ifdef _KERNEL
43
44/*
45 * spl functions; all but spl0 are done in-line
46 */
47#include <machine/psl.h>
48
49#define splnone()	spl0()
50#define splsoft()	splraise1()
51#define splsoftclock()	splsoft()
52#define splsoftnet()	splsoft()
53#define splsoftserial()	splsoft()
54#define splbio()	splraise2()
55#define splnet()	splraise3()
56#define spltty()	splraise6()
57#define splclock()	splraise5()
58#define splstatclock()	splraise5()
59#define splvm()		spl7()
60#define splhigh()	spl7()
61#define splsched()	spl7()
62#define spllock()	spl7()
63
64/* watch out for side effects */
65#define splx(s)         ((s) & PSL_IPL ? _spl(s) : spl0())
66
67int spl0 __P((void));
68
69#define	IPL_NONE	0
70#define	IPL_SOFTCLOCK	1
71#define	IPL_SOFTNET	2
72#define	IPL_SOFTSERIAL	3
73#define	IPL_SOFT	4
74#define	IPL_BIO		5
75#define	IPL_NET		6
76#define	IPL_CLOCK	7
77#define	IPL_STATCLOCK	8
78#define	IPL_TTY		9
79#define	IPL_VM		10
80#define	IPL_SCHED	11
81#define	IPL_HIGH	12
82#define	IPL_LOCK	13
83#define	NIPL		14
84
85extern const int ipl2spl_table[NIPL];
86
87typedef int ipl_t;
88typedef struct {
89	int _spl;
90} ipl_cookie_t;
91
92static inline ipl_cookie_t
93makeiplcookie(ipl_t ipl)
94{
95
96	return (ipl_cookie_t){._spl = ipl2spl_table[ipl]};
97}
98
99static inline int
100splraiseipl(ipl_cookie_t icookie)
101{
102
103	return _splraise(icookie._spl);
104}
105#endif /* _KERNEL */
106
107#include <m68k/softintr.h>
108
109#endif	/* _MACHINE_INTR_H */
110