intr.h revision 1.17 
1/*	$NetBSD: intr.h,v 1.17 2007/12/03 15:34:25 ad 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 splsoftbio()	splraise1()
48#define splsoftclock()	splraise1()
49#define splsoftnet()	splraise1()
50#define splsoftserial()	splraise1()
51#define splvm()         splraise4()
52#define splsched()      spl7()
53#define splhigh()       spl7()
54
55#define	splnone()	spl0()
56#define	splzs()		splraise5()	/* disallow serial interrupts */
57
58/* watch out for side effects */
59#define splx(s)         ((s) & PSL_IPL ? _spl(s) : spl0())
60
61#define	IPL_NONE	0
62#define	IPL_SOFTCLOCK	1
63#define	IPL_SOFTBIO	2
64#define	IPL_SOFTNET	3
65#define	IPL_SOFTSERIAL	4
66#define	IPL_VM		5
67#define	IPL_SCHED	5
68#define	IPL_HIGH	6
69#define	NIPL		7
70
71typedef int ipl_t;
72typedef struct {
73	uint16_t _psl;
74} ipl_cookie_t;
75
76ipl_cookie_t makeiplcookie(ipl_t);
77
78static inline int
79splraiseipl(ipl_cookie_t icookie)
80{
81
82	return _splraise(icookie._psl);
83}
84
85#endif /* !_X68K_INTR_H_ */
86