1 /* $NetBSD: interrupt.c,v 1.8 2011/02/20 07:55:20 matt Exp $ */
2
3 /*-
4 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by 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 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: interrupt.c,v 1.8 2011/02/20 07:55:20 matt Exp $");
34
35 #include <sys/param.h>
36 #include <sys/intr.h>
37 #include <sys/cpu.h>
38
39 #include <machine/sbdvar.h>
40
41 static void (*platform_intr)(int, vaddr_t, uint32_t);
42
43 void
intr_init(void)44 intr_init(void)
45 {
46
47 platform_intr = platform.intr;
48 (*platform.intr_init)();
49 }
50
51 void
intr_establish(int irq,int (* func)(void *),void * arg)52 intr_establish(int irq, int (*func)(void *), void *arg)
53 {
54
55 (*platform.intr_establish)(irq, func, arg);
56 }
57
58 void
intr_disestablish(void * arg)59 intr_disestablish(void *arg)
60 {
61
62 (*platform.intr_disestablish)(arg);
63 }
64
65 void
cpu_intr(int ppl,vaddr_t pc,uint32_t status)66 cpu_intr(int ppl, vaddr_t pc, uint32_t status)
67 {
68 curcpu()->ci_data.cpu_nintr++;
69
70 (*platform_intr)(ppl, pc, status);
71 }
72