intr.h revision 1.21 
1/*	$NetBSD: intr.h,v 1.21 2014/03/22 21:49:18 tsutsui 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _X68K_INTR_H_
33#define	_X68K_INTR_H_
34
35#include <machine/psl.h>
36
37#define spl0()		_spl0()
38
39#define splsoftbio()	splraise1()
40#define splsoftclock()	splraise1()
41#define splsoftnet()	splraise1()
42#define splsoftserial()	splraise1()
43#define splvm()         splraise5()
44#define splsched()      spl7()
45#define splhigh()       spl7()
46
47#define	splnone()	spl0()
48#define	splzs()		splraise5()	/* disallow serial interrupts */
49
50#define	IPL_NONE	0
51#define	IPL_SOFTCLOCK	1
52#define	IPL_SOFTBIO	2
53#define	IPL_SOFTNET	3
54#define	IPL_SOFTSERIAL	4
55#define	IPL_VM		5
56#define	IPL_SCHED	6
57#define	IPL_HIGH	7
58#define	NIPL		8
59
60extern const uint16_t ipl2psl_table[NIPL];
61
62typedef int ipl_t;
63typedef struct {
64	uint16_t _psl;
65} ipl_cookie_t;
66
67static inline ipl_cookie_t
68makeiplcookie(ipl_t ipl)
69{
70
71	return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
72}
73
74static inline int
75splraiseipl(ipl_cookie_t icookie)
76{
77
78	return _splraise(icookie._psl);
79}
80
81static inline void
82splx(int sr)
83{
84
85	__asm volatile("movew %0,%%sr" : : "di" (sr));
86}
87#endif /* !_X68K_INTR_H_ */
88