intr.h revision 1.8 
1/*	$NetBSD: intr.h,v 1.8 2008/01/04 22:03:26 ad Exp $	*/
2
3/*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe, UCHIYAMA Yasushi.
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 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the NetBSD
21 *	Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#ifndef _PLAYSTATION2_INTR_H_
40#define _PLAYSTATION2_INTR_H_
41#ifdef _KERNEL
42
43#include <mips/locore.h>
44
45/* Interrupt sharing types. */
46#define	IST_NONE		0	/* none */
47#define	IST_PULSE		1	/* pulsed */
48#define	IST_EDGE		2	/* edge-triggered */
49#define	IST_LEVEL		3	/* level-triggered */
50
51/* Interrupt priority levels */
52#define	IPL_NONE		0	/* nothing */
53#define IPL_SOFTCLOCK		1	/* timeouts */
54#define	IPL_SOFTBIO		1	/* bio */
55#define	IPL_SOFTNET		2	/* protocol stacks */
56#define IPL_SOFTSERIAL		2	/* serial */
57#define	IPL_VM			3	/* i/o */
58#define	IPL_SCHED		4	/* clock */
59#define	IPL_HIGH		4	/* everything */
60
61#define	_IPL_NSOFT	4
62#define	_IPL_N		5
63
64/*
65 * Hardware interrupt masks
66 */
67extern u_int32_t __icu_mask[_IPL_N];
68
69#define splsoftclock()		splraise(__icu_mask[IPL_SOFTCLOCK])
70#define	splsoftbio()		splraise(__icu_mask[IPL_SOFTBIO])
71#define	splsoftnet()		splraise(__icu_mask[IPL_SOFTNET])
72#define	splsoftserial()		splraise(__icu_mask[IPL_SOFTSERIAL])
73#define	splvm()			splraise(__icu_mask[IPL_VM])
74#define	splsched()		splraise(__icu_mask[IPL_SCHED])
75#define	splx(s)			splset(s)
76
77void	spllowersofthigh(void);
78
79int splraise(int);
80void splset(int);
81void spl0(void);
82
83/* R5900 EI/DI instruction */
84int _intr_suspend(void);
85void _intr_resume(int);
86
87#endif /* _KERNEL */
88#endif /* _PLAYSTATION2_INTR_H_ */
89