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 */ 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 $ 59 * $FreeBSD: src/sys/i386/include/ipl.h,v 1.17.2.3 2002/12/17 18:04:02 sam Exp $ 60 * $DragonFly: src/sys/sys/interrupt.h,v 1.19 2008/05/14 11:59:24 sephe Exp $ 61 */ 62 63 #ifndef _SYS_INTERRUPT_H_ 64 #define _SYS_INTERRUPT_H_ 65 66 /* 67 * System hard and soft interrupt limits. Note that the architecture may 68 * further limit available hardware and software interrupts. 69 */ 70 #define MAX_HARDINTS 192 71 #define MAX_SOFTINTS 64 72 #define FIRST_SOFTINT MAX_HARDINTS 73 #define MAX_INTS (MAX_HARDINTS + MAX_SOFTINTS) 74 75 typedef void inthand2_t (void *, void *); 76 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) 83 #define SWI_UNUSED01 (FIRST_SOFTINT + 1) 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) 89 #define SWI_UNUSED02 (FIRST_SOFTINT + 6) 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)) 96 #define SWI_UNUSED01_PENDING (1 << (SWI_UNUSED01 - FIRST_SOFTINT)) 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)) 102 #define SWI_UNUSED02_PENDING (1 << (SWI_UNUSED02 - FIRST_SOFTINT)) 103 104 #ifdef _KERNEL 105 106 struct intrframe; 107 struct thread; 108 struct lwkt_serialize; 109 void *register_swi(int intr, inthand2_t *handler, void *arg, 110 const char *name, 111 struct lwkt_serialize *serializer, int cpuid); 112 void *register_swi_mp(int intr, inthand2_t *handler, void *arg, 113 const char *name, 114 struct lwkt_serialize *serializer, int cpuid); 115 void *register_int(int intr, inthand2_t *handler, void *arg, 116 const char *name, 117 struct lwkt_serialize *serializer, int flags, 118 int cpuid); 119 long get_interrupt_counter(int intr, int cpuid); 120 121 void unregister_swi(void *id, int intr, int cpuid); 122 void unregister_int(void *id, int cpuid); 123 void register_randintr(int intr); 124 void unregister_randintr(int intr); 125 int next_registered_randintr(int intr); 126 void sched_ithd_soft(int intr); /* procedure called from MD */ 127 void sched_ithd_hard(int intr); /* procedure called from MD */ 128 129 #ifdef _KERNEL_VIRTUAL 130 void *register_int_virtual(int intr, inthand2_t *handler, void *arg, 131 const char *name, struct lwkt_serialize *serializer, int flags); 132 void unregister_int_virtual(void *id); 133 void sched_ithd_hard_virtual(int intr); 134 #endif 135 136 extern char eintrnames[]; /* end of intrnames[] */ 137 extern char intrnames[]; /* string table containing device names */ 138 139 #endif 140 #endif 141