intr.h revision 1.7
1 /* $NetBSD: intr.h,v 1.7 2006/12/21 15:55:24 yamt Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Copyright (C) 1995-1997 Wolfgang Solfrank. 40 * Copyright (C) 1995-1997 TooLs GmbH. 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by TooLs GmbH. 54 * 4. The name of TooLs GmbH may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 61 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 62 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 63 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 64 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 65 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 66 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 #ifndef _MACHINE_INTR_H_ 70 #define _MACHINE_INTR_H_ 71 72 /* Interrupt priority "levels". */ 73 #define IPL_NONE 0 /* nothing */ 74 #define IPL_SOFT 1 /* generic software interrupts */ 75 #define IPL_SOFTCLOCK 2 /* software clock interrupt */ 76 #define IPL_SOFTNET 3 /* software network interrupt */ 77 #define IPL_BIO 4 /* block I/O */ 78 #define IPL_NET 5 /* network */ 79 #define IPL_SOFTSERIAL 6 /* software serial interrupt */ 80 #define IPL_TTY 7 /* terminals */ 81 #define IPL_VM 8 /* memory allocation */ 82 #define IPL_AUDIO 9 /* audio device */ 83 #define IPL_CLOCK 10 /* clock interrupt */ 84 #define IPL_STATCLOCK IPL_CLOCK 85 #define IPL_HIGH 11 /* everything */ 86 #define IPL_SCHED IPL_HIGH 87 #define IPL_LOCK IPL_HIGH 88 #define IPL_SERIAL 12 /* serial device */ 89 90 #define NIPL 13 91 92 /* Interrupt sharing types. */ 93 #define IST_NONE 0 /* none */ 94 #define IST_PULSE 1 /* pulsed */ 95 #define IST_EDGE 2 /* edge-triggered */ 96 #define IST_LEVEL 3 /* level-triggered */ 97 98 #ifdef _KERNEL 99 #ifndef _LOCORE 100 #define CLKF_BASEPRI(frame) ((frame)->pri == IPL_NONE) 101 102 struct clockframe; 103 104 extern int imask[]; 105 extern long ticks_per_intr; 106 extern volatile u_long lasttb; 107 108 struct machvec { 109 int (*mvec_splraise)(int); 110 int (*mvec_spllower)(int); 111 void (*mvec_splx)(int); 112 void (*mvec_setsoft)(int); 113 void (*mvec_clock_return)(struct clockframe *, int, long); 114 void *(*mvec_intr_establish)(int, int, int, int (*)(void *), void *); 115 void (*mvec_intr_disestablish)(void *); 116 }; 117 118 extern struct machvec machine_interface; 119 120 #define _splraise(x) ((*machine_interface.mvec_splraise)(x)) 121 #define _spllower(x) ((*machine_interface.mvec_spllower)(x)) 122 #define splx(x) ((*machine_interface.mvec_splx)(x)) 123 #define setsoftintr(x) ((*machine_interface.mvec_setsoft)(x)) 124 #define clock_return(x, y, z) ((*machine_interface.mvec_clock_return)(x, y, z)) 125 #define intr_establish(irq, lvl, ist, func, arg) \ 126 ((*machine_interface.mvec_intr_establish)((irq), (lvl), (ist), \ 127 (func), (arg))) 128 #define intr_disestablish(cookie) \ 129 ((*machine_interface.mvec_intr_disestablish)((cookie))) 130 131 #define splsoft() _splraise(imask[IPL_SOFT]) 132 133 #define spl0() _spllower(imask[IPL_NONE]) 134 #define spllowersoftclock() _spllower(imask[IPL_SOFTCLOCK]) 135 136 #define setsoftnet() setsoftintr(IPL_SOFTNET) 137 #define setsoftclock() setsoftintr(IPL_SOFTCLOCK) 138 139 /* 140 * Software interrupt support. 141 */ 142 143 #define SI_SOFT 0 /* for IPL_SOFT */ 144 #define SI_SOFTCLOCK 1 /* for IPL_SOFTCLOCK */ 145 #define SI_SOFTNET 2 /* for IPL_SOFTNET */ 146 #define SI_SOFTSERIAL 3 /* for IPL_SOFTSERIAL */ 147 148 #define SI_NQUEUES 4 149 150 #define SI_QUEUENAMES { \ 151 "generic", \ 152 "clock", \ 153 "net", \ 154 "serial", \ 155 } 156 157 typedef int ipl_t; 158 typedef struct { 159 ipl_t _ipl; 160 } ipl_cookie_t; 161 162 static inline ipl_cookie_t 163 makeiplcookie(ipl_t ipl) 164 { 165 166 return (ipl_cookie_t){._ipl = ipl}; 167 } 168 169 static inline int 170 splraiseipl(ipl_cookie_t icookie) 171 { 172 173 return _splraise(imask[icookie._ipl]); 174 } 175 176 #include <sys/spl.h> 177 178 #endif /* _LOCORE */ 179 180 #endif /* _KERNEL */ 181 182 #endif /* _MACHINE_INTR_H_ */ 183
Indexes created Sat Sep 27 14:09:57 GMT 2025