1 /* 2 * Copyright (c) 1997, Stefan Esser <se@freebsd.org> 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 unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/sys/interrupt.h,v 1.9.2.1 2001/10/14 20:05:50 luigi Exp $ 27 * $DragonFly: src/sys/sys/interrupt.h,v 1.16 2005/11/21 18:02:46 dillon Exp $ 28 */ 29 30 #ifndef _SYS_INTERRUPT_H_ 31 #define _SYS_INTERRUPT_H_ 32 33 /* 34 * System hard and soft interrupt limits. Note that the architecture may 35 * further limit available hardware and software interrupts. 36 */ 37 #define MAX_HARDINTS 64 38 #define MAX_SOFTINTS 64 39 #define FIRST_SOFTINT MAX_HARDINTS 40 #define MAX_INTS (MAX_HARDINTS + MAX_SOFTINTS) 41 42 typedef void inthand2_t (void *, void *); 43 44 #ifdef _KERNEL 45 46 struct intrframe; 47 struct thread; 48 struct lwkt_serialize; 49 void *register_swi(int intr, inthand2_t *handler, void *arg, 50 const char *name, 51 struct lwkt_serialize *serializer); 52 void *register_int(int intr, inthand2_t *handler, void *arg, 53 const char *name, 54 struct lwkt_serialize *serializer, int flags); 55 long get_interrupt_counter(int intr); 56 int count_registered_ints(int intr); 57 const char *get_registered_name(int intr); 58 59 void swi_setpriority(int intr, int pri); 60 void unregister_swi(void *id); 61 void unregister_int(void *id); 62 void register_randintr(int intr); 63 void unregister_randintr(int intr); 64 int next_registered_randintr(int intr); 65 void sched_ithd(int intr); /* procedure called from MD */ 66 void forward_fastint_remote(void *arg); /* MD procedure (SMP) */ 67 68 extern char eintrnames[]; /* end of intrnames[] */ 69 extern char intrnames[]; /* string table containing device names */ 70 71 #endif 72 #endif 73