intr: Nuke count_registered_ints()
[dragonfly.git] / sys / sys / interrupt.h
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1/*-
2 * Copyright (c) 1993 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
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33/*
34 * Copyright (c) 1997, Stefan Esser <se@freebsd.org>
35 * All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice unmodified, this list of conditions, and the following
42 * disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
50 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
52 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
53 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
54 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
55 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
56 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
57 *
58 * $FreeBSD: src/sys/sys/interrupt.h,v 1.9.2.1 2001/10/14 20:05:50 luigi Exp $
a7231bde 59 * $FreeBSD: src/sys/i386/include/ipl.h,v 1.17.2.3 2002/12/17 18:04:02 sam Exp $
9db4b353 60 * $DragonFly: src/sys/sys/interrupt.h,v 1.19 2008/05/14 11:59:24 sephe Exp $
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61 */
62
63#ifndef _SYS_INTERRUPT_H_
64#define _SYS_INTERRUPT_H_
65
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66/*
67 * System hard and soft interrupt limits. Note that the architecture may
68 * further limit available hardware and software interrupts.
69 */
da6ddc66 70#define MAX_HARDINTS 192
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71#define MAX_SOFTINTS 64
72#define FIRST_SOFTINT MAX_HARDINTS
73#define MAX_INTS (MAX_HARDINTS + MAX_SOFTINTS)
7e071e7a 74
477d3c1c 75typedef void inthand2_t (void *, void *);
984263bc 76
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77/*
78 * Software interrupt bit numbers in priority order. The priority only
79 * determines which swi will be dispatched next; a higher priority swi
80 * may be dispatched when a nested h/w interrupt handler returns.
81 */
82#define SWI_TTY (FIRST_SOFTINT + 0)
0fb6ec96 83#define SWI_UNUSED01 (FIRST_SOFTINT + 1)
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84#define SWI_CAMNET (FIRST_SOFTINT + 2)
85#define SWI_CRYPTO SWI_CAMNET
86#define SWI_CAMBIO (FIRST_SOFTINT + 3)
87#define SWI_VM (FIRST_SOFTINT + 4)
88#define SWI_TQ (FIRST_SOFTINT + 5)
0fb6ec96 89#define SWI_UNUSED02 (FIRST_SOFTINT + 6)
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90
91/*
92 * Corresponding interrupt-pending bits for spending. NOTE: i386 only
93 * supports 32 software interupts (due to its gd_spending mask).
94 */
95#define SWI_TTY_PENDING (1 << (SWI_TTY - FIRST_SOFTINT))
0fb6ec96 96#define SWI_UNUSED01_PENDING (1 << (SWI_UNUSED01 - FIRST_SOFTINT))
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97#define SWI_CAMNET_PENDING (1 << (SWI_CAMNET - FIRST_SOFTINT))
98#define SWI_CRYPTO_PENDING SWI_CAMNET_PENDING
99#define SWI_CAMBIO_PENDING (1 << (SWI_CAMBIO - FIRST_SOFTINT))
100#define SWI_VM_PENDING (1 << (SWI_VM - FIRST_SOFTINT))
101#define SWI_TQ_PENDING (1 << (SWI_TQ - FIRST_SOFTINT))
0fb6ec96 102#define SWI_UNUSED02_PENDING (1 << (SWI_UNUSED02 - FIRST_SOFTINT))
a7231bde 103
e14cc54f 104#ifdef _KERNEL
96728c05 105
477d3c1c 106struct intrframe;
e14cc54f 107struct thread;
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108struct lwkt_serialize;
109void *register_swi(int intr, inthand2_t *handler, void *arg,
8619d09d 110 const char *name,
1da8d52f 111 struct lwkt_serialize *serializer, int cpuid);
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112void *register_swi_mp(int intr, inthand2_t *handler, void *arg,
113 const char *name,
1da8d52f 114 struct lwkt_serialize *serializer, int cpuid);
477d3c1c 115void *register_int(int intr, inthand2_t *handler, void *arg,
8619d09d 116 const char *name,
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117 struct lwkt_serialize *serializer, int flags,
118 int cpuid);
477d3c1c 119long get_interrupt_counter(int intr);
477d3c1c 120
1da8d52f 121void unregister_swi(void *id, int intr, int cpuid);
6355d931 122void unregister_int(void *id, int cpuid);
5f456c40 123void register_randintr(int intr);
7e071e7a 124void unregister_randintr(int intr);
5f456c40 125int next_registered_randintr(int intr);
ef0fdad1 126void sched_ithd(int intr); /* procedure called from MD */
9db4b353 127int ithread_cpuid(int intr);
984263bc 128
984263bc 129extern char eintrnames[]; /* end of intrnames[] */
984263bc 130extern char intrnames[]; /* string table containing device names */
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131
132#endif
984263bc 133#endif