intr.h revision 1.9 
1/*	$NetBSD: intr.h,v 1.9 2008/04/28 20:23:31 martin 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 *
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 _PLAYSTATION2_INTR_H_
33#define _PLAYSTATION2_INTR_H_
34#ifdef _KERNEL
35
36#include <mips/locore.h>
37
38/* Interrupt sharing types. */
39#define	IST_NONE		0	/* none */
40#define	IST_PULSE		1	/* pulsed */
41#define	IST_EDGE		2	/* edge-triggered */
42#define	IST_LEVEL		3	/* level-triggered */
43
44/* Interrupt priority levels */
45#define	IPL_NONE		0	/* nothing */
46#define IPL_SOFTCLOCK		1	/* timeouts */
47#define	IPL_SOFTBIO		1	/* bio */
48#define	IPL_SOFTNET		2	/* protocol stacks */
49#define IPL_SOFTSERIAL		2	/* serial */
50#define	IPL_VM			3	/* i/o */
51#define	IPL_SCHED		4	/* clock */
52#define	IPL_HIGH		4	/* everything */
53
54#define	_IPL_NSOFT	4
55#define	_IPL_N		5
56
57/*
58 * Hardware interrupt masks
59 */
60extern u_int32_t __icu_mask[_IPL_N];
61
62#define splsoftclock()		splraise(__icu_mask[IPL_SOFTCLOCK])
63#define	splsoftbio()		splraise(__icu_mask[IPL_SOFTBIO])
64#define	splsoftnet()		splraise(__icu_mask[IPL_SOFTNET])
65#define	splsoftserial()		splraise(__icu_mask[IPL_SOFTSERIAL])
66#define	splvm()			splraise(__icu_mask[IPL_VM])
67#define	splsched()		splraise(__icu_mask[IPL_SCHED])
68#define	splx(s)			splset(s)
69
70void	spllowersofthigh(void);
71
72int splraise(int);
73void splset(int);
74void spl0(void);
75
76/* R5900 EI/DI instruction */
77int _intr_suspend(void);
78void _intr_resume(int);
79
80#endif /* _KERNEL */
81#endif /* _PLAYSTATION2_INTR_H_ */
82