1 /* $NetBSD: intr.h,v 1.15 2002/07/28 07:07:46 chs Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _MACPPC_INTR_H_ 40 #define _MACPPC_INTR_H_ 41 42 /* Interrupt priority `levels'. */ 43 #define IPL_NONE 9 /* nothing */ 44 #define IPL_SOFTCLOCK 8 /* timeouts */ 45 #define IPL_SOFTNET 7 /* protocol stacks */ 46 #define IPL_BIO 6 /* block I/O */ 47 #define IPL_NET 5 /* network */ 48 #define IPL_SOFTSERIAL 4 /* serial */ 49 #define IPL_TTY 3 /* terminal */ 50 #define IPL_IMP 3 /* memory allocation */ 51 #define IPL_AUDIO 2 /* audio */ 52 #define IPL_CLOCK 1 /* clock */ 53 #define IPL_HIGH 1 /* everything */ 54 #define IPL_SERIAL 0 /* serial */ 55 #define NIPL 10 56 57 /* Interrupt sharing types. */ 58 #define IST_NONE 0 /* none */ 59 #define IST_PULSE 1 /* pulsed */ 60 #define IST_EDGE 2 /* edge-triggered */ 61 #define IST_LEVEL 3 /* level-triggered */ 62 63 #ifndef _LOCORE 64 65 /* 66 * Interrupt handler chains. intr_establish() inserts a handler into 67 * the list. The handler is called with its (single) argument. 68 */ 69 struct intrhand { 70 int (*ih_fun) __P((void *)); 71 void *ih_arg; 72 u_long ih_count; 73 struct intrhand *ih_next; 74 int ih_level; 75 int ih_irq; 76 }; 77 78 void softnet __P((int)); 79 void softserial __P((void)); 80 81 int splraise __P((int)); 82 int spllower __P((int)); 83 void splx __P((int)); 84 void softintr __P((int)); 85 86 extern volatile int astpending, tickspending; 87 extern int imask[]; 88 89 #define ICU_LEN 64 90 91 /* Soft interrupt masks. */ 92 #define SIR_CLOCK 28 93 #define SIR_NET 29 94 #define SIR_SERIAL 30 95 #define SPL_CLOCK 31 96 97 /* 98 * Hardware interrupt masks 99 */ 100 #define splbio() splraise(imask[IPL_BIO]) 101 #define splnet() splraise(imask[IPL_NET]) 102 #define spltty() splraise(imask[IPL_TTY]) 103 #define splaudio() splraise(imask[IPL_AUDIO]) 104 #define splclock() splraise(imask[IPL_CLOCK]) 105 #define splstatclock() splclock() 106 #define splserial() splraise(imask[IPL_SERIAL]) 107 108 #define spllpt() spltty() 109 110 /* 111 * Software interrupt masks 112 * 113 * NOTE: splsoftclock() is used by hardclock() to lower the priority from 114 * clock to softclock before it calls softclock(). 115 */ 116 #define spllowersoftclock() spllower(imask[IPL_SOFTCLOCK]) 117 #define splsoftclock() splraise(imask[IPL_SOFTCLOCK]) 118 #define splsoftnet() splraise(imask[IPL_SOFTNET]) 119 #define splsoftserial() splraise(imask[IPL_SOFTSERIAL]) 120 121 /* 122 * Miscellaneous 123 */ 124 #define splvm() splraise(imask[IPL_IMP]) 125 #define splhigh() splraise(imask[IPL_HIGH]) 126 #define splsched() splhigh() 127 #define spllock() splhigh() 128 #define spl0() spllower(0) 129 130 #define setsoftclock() softintr(SIR_CLOCK) 131 #define setsoftnet() softintr(SIR_NET) 132 #define setsoftserial() softintr(SIR_SERIAL) 133 134 extern long intrcnt[]; 135 136 #define CNT_IRQ0 0 137 #define CNT_CLOCK 64 138 #define CNT_SOFTCLOCK 65 139 #define CNT_SOFTNET 66 140 #define CNT_SOFTSERIAL 67 141 142 #ifdef MULTIPROCESSOR 143 #define MACPPC_IPI_HALT 0x0001 144 #define MACPPC_IPI_FLUSH_FPU 0x0002 145 #define MACPPC_IPI_FLUSH_VEC 0x0004 146 147 struct cpu_info; 148 void macppc_send_ipi(volatile struct cpu_info *, u_long); 149 #endif 150 151 #endif /* _LOCORE */ 152 153 #endif /* _MACPPC_INTR_H_ */ 154