intr.h revision 1.20 
1/*	$NetBSD: intr.h,v 1.20 2008/01/28 17:07:19 tsutsui 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 The NetBSD Foundation
22 *	Inc. and its contributers.
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 _NEWS68K_INTR_H_
39#define	_NEWS68K_INTR_H_
40
41#include <sys/device.h>
42#include <sys/queue.h>
43#include <machine/psl.h>
44#include <m68k/asm_single.h>
45
46#define	IPL_NONE	0
47#define	IPL_SOFTCLOCK	1
48#define	IPL_SOFTBIO	2
49#define	IPL_SOFTNET	3
50#define	IPL_SOFTSERIAL	4
51#define	IPL_VM		5
52#define	IPL_SCHED	6
53#define	IPL_HIGH	6
54#define	NIPL		7
55
56extern int idepth;
57
58typedef int ipl_t;
59typedef struct {
60	uint16_t _psl;
61} ipl_cookie_t;
62
63ipl_cookie_t makeiplcookie(ipl_t);
64
65static inline int
66splraiseipl(ipl_cookie_t icookie)
67{
68
69	return _splraise(icookie._psl);
70}
71
72static __inline void
73splx(int sr)
74{
75
76	__asm volatile("movw %0,%%sr" : : "di" (sr));
77}
78
79/*
80 * news68k can handle software interrupts by its own hardware
81 * so has no need to check for any simulated interrupts, etc.
82 */
83#define	spl0()		_spl0()
84
85#define	splsoftbio()	splraise2()
86#define	splsoftclock()	splraise2()
87#define	splsoftnet()	splraise2()
88#define	splsoftserial()	splraise2()
89#define	splvm()		splraise5()
90#define	splhigh()	spl7()
91#define	splsched()	spl7()
92
93#endif /* _NEWS68K_INTR_H_ */
94