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      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
     44 intr_init(void)
     45 {
     46 
     47 	platform_intr = platform.intr;
     48 	(*platform.intr_init)();
     49 }
     50 
     51 void
     52 intr_establish(int irq, int (*func)(void *), void *arg)
     53 {
     54 
     55 	(*platform.intr_establish)(irq, func, arg);
     56 }
     57 
     58 void
     59 intr_disestablish(void *arg)
     60 {
     61 
     62 	(*platform.intr_disestablish)(arg);
     63 }
     64 
     65 void
     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