intr.h revision 1.12 
1/*	$NetBSD: intr.h,v 1.12 2011/02/08 20:20:10 rmind 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. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * from: Utah $Hdr: machparam.h 1.16 92/12/20$
37 *
38 *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
39 */
40
41#ifndef _CESFIC_INTR_H_
42#define _CESFIC_INTR_H_
43
44/*
45 * spl functions; all but spl0 are done in-line
46 */
47#include <machine/psl.h>
48
49#if defined(_KERNEL) && !defined(_LOCORE)
50/* spl0 requires checking for software interrupts */
51#define spl1()  _spl(PSL_S|PSL_IPL1)
52#define spl2()  _spl(PSL_S|PSL_IPL2)
53#define spl3()  _spl(PSL_S|PSL_IPL3)
54#define spl4()  _spl(PSL_S|PSL_IPL4)
55#define spl5()  _spl(PSL_S|PSL_IPL5)
56#define spl6()  _spl(PSL_S|PSL_IPL6)
57#define spl7()  _spl(PSL_S|PSL_IPL7)
58
59/* These spl calls are used by machine-independent code. */
60#define splsoftclock()	splraise1()
61#define splsoftbio()	splraise1()
62#define splsoftnet()	splraise1()
63#define splsoftserial()	splraise1()
64#define splvm()		splraise4()
65#define splsched()	spl6()
66#define splhigh()	spl7()
67
68/* watch out for side effects */
69#define splx(s)         (s & PSL_IPL ? _spl(s) : spl0())
70
71int	spl0(void);
72
73#define	IPL_NONE	0
74#define	IPL_SOFTCLOCK	1
75#define	IPL_SOFTBIO	1
76#define	IPL_SOFTNET	3
77#define	IPL_SOFTSERIAL	4
78#define	IPL_VM		5
79#define	IPL_SCHED	6
80#define	IPL_HIGH	7
81#define	NIPL		8
82
83extern const uint16_t ipl2psl_table[NIPL];
84
85typedef int ipl_t;
86typedef struct {
87	uint16_t _psl;
88} ipl_cookie_t;
89
90static inline ipl_cookie_t
91makeiplcookie(ipl_t ipl)
92{
93
94	return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
95}
96
97static inline int
98splraiseipl(ipl_cookie_t icookie)
99{
100
101	return _splraise(icookie._psl);
102}
103
104#include <m68k/softintr.h>
105
106#endif /* _KERNEL && !_LOCORE */
107
108#endif /* !_CESFIC_INTR_H_ */
109