1 /* $OpenBSD: intr.h,v 1.6 2003/06/24 21:54:39 henric Exp $ */ 2 /* $NetBSD: intr.h,v 1.8 2001/01/14 23:50:30 thorpej Exp $ */ 3 4 /*- 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Paul Kranenburg. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #ifndef _SPARC64_INTR_H_ 41 #define _SPARC64_INTR_H_ 42 43 #ifndef _SPARC64_INTREG_H_ 44 #include <sparc64/sparc64/intreg.h> 45 #endif 46 47 /* 48 * Interrupt handler chains. Interrupt handlers should return 0 for 49 * ``not me'' or 1 (``I took care of it''). intr_establish() inserts a 50 * handler into the list. The handler is called with its (single) 51 * argument, or with a pointer to a clockframe if ih_arg is NULL. 52 */ 53 struct intrhand { 54 int (*ih_fun)(void *); 55 void *ih_arg; 56 short ih_number; /* interrupt number */ 57 /* the H/W provides */ 58 char ih_pil; /* interrupt priority */ 59 volatile char ih_busy; /* handler is on list */ 60 struct intrhand *ih_next; /* global list */ 61 struct intrhand *ih_pending; /* pending list */ 62 volatile u_int64_t *ih_map; /* interrupt map reg */ 63 volatile u_int64_t *ih_clr; /* clear interrupt reg */ 64 u_int64_t ih_count; /* # of interrupts */ 65 const void *ih_bus; /* parent bus */ 66 char ih_name[1]; /* device name */ 67 }; 68 69 extern struct intrhand *intrlev[MAXINTNUM]; 70 71 void intr_establish(int, struct intrhand *); 72 73 /* XXX - arbitrary numbers; no interpretation is defined yet */ 74 #define IPL_NONE 0 /* nothing */ 75 #define IPL_SOFTINT 1 /* softint */ 76 #define IPL_SOFTCLOCK 1 /* timeouts */ 77 #define IPL_SOFTNET 1 /* protocol stack */ 78 #define IPL_BIO PIL_BIO /* block I/O */ 79 #define IPL_NET PIL_NET /* network */ 80 #define IPL_SOFTSERIAL 4 /* serial */ 81 #define IPL_TTY PIL_TTY /* terminal */ 82 #define IPL_VM PIL_VM /* memory allocation */ 83 #define IPL_AUDIO PIL_AUD /* audio */ 84 #define IPL_CLOCK PIL_CLOCK /* clock */ 85 #define IPL_SERIAL PIL_SER /* serial */ 86 #define IPL_SCHED PIL_SCHED /* scheduler */ 87 #define IPL_LOCK PIL_LOCK /* locks */ 88 #define IPL_STATCLOCK PIL_STATCLOCK /* statclock */ 89 #define IPL_HIGH PIL_HIGH /* everything */ 90 91 void * 92 softintr_establish(int level, void (*fun)(void *), void *arg); 93 94 void 95 softintr_disestablish(void *cookie); 96 97 void 98 softintr_schedule(void *cookie); 99 100 #endif /* _SPARC64_INTR_H_ */ 101