intr.h revision 1.2 
1/*	$NetBSD: intr.h,v 1.2 2002/01/14 19:59:31 kleink Exp $	*/
2
3/*
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1982, 1986, 1990, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * the Systems Programming Group of the University of Utah Computer
10 * Science Department.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 *    must display the following acknowledgement:
22 *	This product includes software developed by the University of
23 *	California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 *    may be used to endorse or promote products derived from this software
26 *    without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * from: Utah $Hdr: machparam.h 1.16 92/12/20$
41 *
42 *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
43 */
44
45#ifndef _CESFIC_INTR_H_
46#define _CESFIC_INTR_H_
47
48/*
49 * spl functions; all but spl0 are done in-line
50 */
51#include <machine/psl.h>
52
53#if defined(_KERNEL) && !defined(_LOCORE)
54/* spl0 requires checking for software interrupts */
55#define spl1()  _spl(PSL_S|PSL_IPL1)
56#define spl2()  _spl(PSL_S|PSL_IPL2)
57#define spl3()  _spl(PSL_S|PSL_IPL3)
58#define spl4()  _spl(PSL_S|PSL_IPL4)
59#define spl5()  _spl(PSL_S|PSL_IPL5)
60#define spl6()  _spl(PSL_S|PSL_IPL6)
61#define spl7()  _spl(PSL_S|PSL_IPL7)
62
63/*
64 * These four globals contain the appropriate PSL_S|PSL_IPL? values
65 * to raise interrupt priority to the requested level.
66 */
67extern	unsigned short cesfic_bioipl;
68extern	unsigned short cesfic_netipl;
69extern	unsigned short cesfic_ttyipl;
70extern	unsigned short cesfic_impipl;
71
72/* These spl calls are used by machine-independent code. */
73#define	spllowersoftclock() spl1()
74#define	splsoft()	splraise1()
75#define splsoftclock()	splsoft()
76#define splsoftnet()	splsoft()
77#define splbio()	_splraise(cesfic_bioipl)
78#define splnet()	_splraise(cesfic_netipl)
79#define spltty()	_splraise(cesfic_ttyipl)
80#define splvm()		_splraise(cesfic_impipl)
81#define splclock()	spl6()
82#define splstatclock()	spl6()
83#define splhigh()	spl7()
84#define splsched()	spl7()
85#define spllock()	spl7()
86
87/* watch out for side effects */
88#define splx(s)         (s & PSL_IPL ? _spl(s) : spl0())
89
90int	spl0 __P((void));
91#endif /* _KERNEL && !_LOCORE */
92
93#endif /* !_CESFIC_INTR_H_ */
94