1 /* $NetBSD: intr.h,v 1.11 2001/07/06 19:00:14 scw Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe and Steve C. Woodford. 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 _MVME68K_INTR_H 40 #define _MVME68K_INTR_H 41 42 #include <sys/device.h> 43 #include <sys/queue.h> 44 #include <machine/psl.h> 45 46 /* 47 * These are identical to the values used by hp300, but are not meaningful 48 * to mvme68k code at this time. 49 */ 50 #define IPL_NONE 0 /* disable only this interrupt */ 51 #define IPL_BIO 1 /* disable block I/O interrupts */ 52 #define IPL_NET 2 /* disable network interrupts */ 53 #define IPL_TTY 3 /* disable terminal interrupts */ 54 #define IPL_TTYNOBUF 4 /* IPL_TTY + higher ISR priority */ 55 #define IPL_SERIAL 4 /* disable serial interrupts */ 56 #define IPL_CLOCK 5 /* disable clock interrupts */ 57 #define IPL_HIGH 6 /* disable all interrupts */ 58 59 /* Copied from alpha/include/intr.h */ 60 #define IPL_SOFTSERIAL 0 /* serial software interrupts */ 61 #define IPL_SOFTNET 1 /* network software interrupts */ 62 #define IPL_SOFTCLOCK 2 /* clock software interrupts */ 63 #define IPL_SOFT 3 /* other software interrupts */ 64 #define IPL_NSOFT 4 65 66 #define IPL_SOFTNAMES { \ 67 "serial", \ 68 "net", \ 69 "clock", \ 70 "misc", \ 71 } 72 73 #ifdef _KERNEL 74 #define spl0() _spl0() 75 #define spllowersoftclock() spl1() 76 #define splsoft() splraise1() 77 #define splsoftclock() splsoft() 78 #define splsoftnet() splsoft() 79 #define splsoftserial() splsoft() 80 #define splbio() splraise2() 81 #define splnet() splraise3() 82 #define spltty() splraise3() 83 #define splvm() splraise3() 84 #define splserial() splraise4() 85 #define splclock() splraise5() 86 #define splstatclock() splraise5() 87 #define splhigh() spl7() 88 #define splsched() spl7() 89 #define spllock() spl7() 90 91 #ifndef _LOCORE 92 93 static __inline void 94 splx(int sr) 95 { 96 97 __asm __volatile("movw %0,%%sr" : : "di" (sr)); 98 } 99 100 #define setsoft(x) x = 0 101 102 struct mvme68k_soft_intrhand { 103 LIST_ENTRY(mvme68k_soft_intrhand) sih_q; 104 struct mvme68k_soft_intr *sih_intrhead; 105 void (*sih_fn)(void *); 106 void *sih_arg; 107 volatile int sih_pending; 108 }; 109 110 struct mvme68k_soft_intr { 111 LIST_HEAD(, mvme68k_soft_intrhand) msi_q; 112 struct evcnt msi_evcnt; 113 volatile unsigned char msi_ssir; 114 }; 115 116 void *softintr_establish(int, void (*)(void *), void *); 117 void softintr_disestablish(void *); 118 void softintr_init(void); 119 void softintr_dispatch(void); 120 extern void (*_softintr_chipset_assert)(void); 121 122 #define softintr_schedule(arg) \ 123 do { \ 124 struct mvme68k_soft_intrhand *__sih = (arg); \ 125 __sih->sih_pending = 1; \ 126 setsoft(__sih->sih_intrhead->msi_ssir); \ 127 _softintr_chipset_assert(); \ 128 } while (0) 129 130 /* XXX For legacy software interrupts */ 131 extern struct mvme68k_soft_intrhand *softnet_intrhand; 132 133 #define setsoftnet() softintr_schedule(softnet_intrhand) 134 135 #endif /* !_LOCORE */ 136 #endif /* _KERNEL */ 137 138 #endif /* _MVME68K_INTR_H */ 139