psl.h revision 1.3 
1/*	$NetBSD: psl.h,v 1.3 2001/04/13 23:29:58 thorpej Exp $	*/
2
3/*
4 * Copyright (c) 1995 Mark Brinicombe.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Mark Brinicombe
18 *	for the NetBSD Project.
19 * 4. The name of the company nor the name of the author may be used to
20 *    endorse or promote products derived from this software without specific
21 *    prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * RiscBSD kernel project
36 *
37 * psl.h
38 *
39 * spl prototypes.
40 * Eventually this will become a set of defines.
41 *
42 * Created      : 21/07/95
43 */
44
45#include <machine/intr.h>
46
47/*
48 * These are the different SPL states
49 *
50 * Each state has an interrupt mask associated with it which
51 * indicate which interrupts are allowed.
52 */
53
54#define _SPL_0		0
55#define _SPL_SOFTCLOCK	1
56#define _SPL_SOFTNET	2
57#define _SPL_BIO	3
58#define _SPL_NET	4
59#define _SPL_SOFTSERIAL	5
60#define _SPL_TTY	6
61#define _SPL_IMP	7
62#define _SPL_AUDIO	8
63#define _SPL_CLOCK	9
64#define _SPL_HIGH	10
65#define _SPL_SERIAL	11
66#define _SPL_LEVELS	12
67
68#define spl0()		splx(_SPL_0)
69/*#define splsoft()	raisespl(_SPL_SOFT)*/
70#define splsoftnet()	raisespl(_SPL_SOFTNET)
71#define spllowersoftclock() lowerspl(_SPL_SOFTCLOCK)
72#define splsoftclock()	raisespl(_SPL_SOFTCLOCK)
73#define splbio()	raisespl(_SPL_BIO)
74#define splnet()	raisespl(_SPL_NET)
75#define splsoftserial()	raisespl(_SPL_SOFTSERIAL)
76#define spltty()	raisespl(_SPL_TTY)
77#define spllpt()	spltty()
78#define splvm()		raisespl(_SPL_IMP)
79#define splaudio()	raisespl(_SPL_AUDIO)
80#define splclock()	raisespl(_SPL_CLOCK)
81#define splstatclock()	raisespl(_SPL_CLOCK)
82#define splserial()	raisespl(_SPL_SERIAL)
83#define splhigh()	raisespl(_SPL_HIGH)
84
85#define	splsched()	splhigh()
86#define	spllock()	splhigh()
87
88#ifdef _KERNEL
89#ifndef _LOCORE
90int raisespl	__P((int));
91int lowerspl	__P((int));
92int splx	__P((int));
93
94void setsoftast		__P((void));
95void setsoftclock	__P((void));
96void setsoftnet		__P((void));
97void setsoftserial	__P((void));
98void setsoftintr	__P((u_int intrmask));
99
100extern int current_spl_level;
101
102extern u_int spl_masks[_SPL_LEVELS + 1];
103extern u_int spl_smasks[_SPL_LEVELS];
104#endif /* _LOCORE */
105#endif /* _KERNEL */
106
107/* End of psl.h */
108