intr.h revision 1.13
1 1.13 thorpej /* $NetBSD: intr.h,v 1.13 1998/07/07 22:24:40 thorpej Exp $ */ 2 1.1 cgd 3 1.1 cgd /* 4 1.6 cgd * Copyright (c) 1997 Christopher G. Demetriou. All rights reserved. 5 1.1 cgd * Copyright (c) 1996 Carnegie-Mellon University. 6 1.1 cgd * All rights reserved. 7 1.1 cgd * 8 1.1 cgd * Author: Chris G. Demetriou 9 1.1 cgd * 10 1.1 cgd * Permission to use, copy, modify and distribute this software and 11 1.1 cgd * its documentation is hereby granted, provided that both the copyright 12 1.1 cgd * notice and this permission notice appear in all copies of the 13 1.1 cgd * software, derivative works or modified versions, and any portions 14 1.1 cgd * thereof, and that both notices appear in supporting documentation. 15 1.1 cgd * 16 1.1 cgd * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 17 1.1 cgd * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 18 1.1 cgd * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 19 1.1 cgd * 20 1.1 cgd * Carnegie Mellon requests users of this software to return to 21 1.1 cgd * 22 1.1 cgd * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 23 1.1 cgd * School of Computer Science 24 1.1 cgd * Carnegie Mellon University 25 1.1 cgd * Pittsburgh PA 15213-3890 26 1.1 cgd * 27 1.1 cgd * any improvements or extensions that they make and grant Carnegie the 28 1.1 cgd * rights to redistribute these changes. 29 1.1 cgd */ 30 1.1 cgd 31 1.2 cgd #ifndef _ALPHA_INTR_H_ 32 1.2 cgd #define _ALPHA_INTR_H_ 33 1.2 cgd 34 1.3 cgd #include <sys/queue.h> 35 1.3 cgd 36 1.1 cgd #define IPL_NONE 0 /* disable only this interrupt */ 37 1.1 cgd #define IPL_BIO 1 /* disable block I/O interrupts */ 38 1.1 cgd #define IPL_NET 2 /* disable network interrupts */ 39 1.1 cgd #define IPL_TTY 3 /* disable terminal interrupts */ 40 1.1 cgd #define IPL_CLOCK 4 /* disable clock interrupts */ 41 1.1 cgd #define IPL_HIGH 5 /* disable all interrupts */ 42 1.1 cgd 43 1.3 cgd #define IST_UNUSABLE -1 /* interrupt cannot be used */ 44 1.1 cgd #define IST_NONE 0 /* none (dummy) */ 45 1.1 cgd #define IST_PULSE 1 /* pulsed */ 46 1.1 cgd #define IST_EDGE 2 /* edge-triggered */ 47 1.1 cgd #define IST_LEVEL 3 /* level-triggered */ 48 1.11 mjacob #ifdef _KERNEL 49 1.2 cgd 50 1.6 cgd /* IPL-lowering/restoring macros */ 51 1.2 cgd #define splx(s) \ 52 1.7 cgd ((s) == ALPHA_PSL_IPL_0 ? spl0() : alpha_pal_swpipl(s)) 53 1.2 cgd #define splsoft() alpha_pal_swpipl(ALPHA_PSL_IPL_SOFT) 54 1.2 cgd #define splsoftclock() splsoft() 55 1.2 cgd #define splsoftnet() splsoft() 56 1.6 cgd 57 1.8 cgd /* IPL-raising functions/macros */ 58 1.10 cgd static __inline int _splraise __P((int)) __attribute__ ((unused)); 59 1.8 cgd static __inline int 60 1.8 cgd _splraise(s) 61 1.8 cgd int s; 62 1.8 cgd { 63 1.8 cgd int cur = alpha_pal_rdps() & ALPHA_PSL_IPL_MASK; 64 1.9 cgd return (s > cur ? alpha_pal_swpipl(s) : cur); 65 1.8 cgd } 66 1.6 cgd #define splnet() _splraise(ALPHA_PSL_IPL_IO) 67 1.6 cgd #define splbio() _splraise(ALPHA_PSL_IPL_IO) 68 1.6 cgd #define splimp() _splraise(ALPHA_PSL_IPL_IO) 69 1.6 cgd #define spltty() _splraise(ALPHA_PSL_IPL_IO) 70 1.6 cgd #define splclock() _splraise(ALPHA_PSL_IPL_CLOCK) 71 1.6 cgd #define splstatclock() _splraise(ALPHA_PSL_IPL_CLOCK) 72 1.6 cgd #define splhigh() _splraise(ALPHA_PSL_IPL_HIGH) 73 1.2 cgd 74 1.2 cgd /* 75 1.2 cgd * simulated software interrupt register 76 1.2 cgd */ 77 1.2 cgd extern u_int64_t ssir; 78 1.2 cgd 79 1.2 cgd #define SIR_NET 0x1 80 1.2 cgd #define SIR_CLOCK 0x2 81 1.2 cgd 82 1.2 cgd #define setsoftnet() ssir |= SIR_NET 83 1.2 cgd #define setsoftclock() ssir |= SIR_CLOCK 84 1.3 cgd 85 1.3 cgd /* 86 1.3 cgd * Alpha shared-interrupt-line common code. 87 1.3 cgd */ 88 1.3 cgd 89 1.3 cgd struct alpha_shared_intrhand { 90 1.3 cgd TAILQ_ENTRY(alpha_shared_intrhand) 91 1.3 cgd ih_q; 92 1.3 cgd int (*ih_fn) __P((void *)); 93 1.3 cgd void *ih_arg; 94 1.3 cgd int ih_level; 95 1.3 cgd }; 96 1.3 cgd 97 1.3 cgd struct alpha_shared_intr { 98 1.3 cgd TAILQ_HEAD(,alpha_shared_intrhand) 99 1.3 cgd intr_q; 100 1.3 cgd int intr_sharetype; 101 1.3 cgd int intr_dfltsharetype; 102 1.3 cgd int intr_nstrays; 103 1.3 cgd int intr_maxstrays; 104 1.3 cgd }; 105 1.12 thorpej 106 1.13 thorpej #define ALPHA_SHARED_INTR_DISABLE(asi, num) \ 107 1.13 thorpej ((asi)[num].intr_maxstrays != 0 && \ 108 1.13 thorpej (asi)[num].intr_nstrays == (asi)[num].intr_maxstrays) 109 1.3 cgd 110 1.3 cgd struct alpha_shared_intr *alpha_shared_intr_alloc __P((unsigned int)); 111 1.3 cgd int alpha_shared_intr_dispatch __P((struct alpha_shared_intr *, 112 1.3 cgd unsigned int)); 113 1.3 cgd void *alpha_shared_intr_establish __P((struct alpha_shared_intr *, 114 1.3 cgd unsigned int, int, int, int (*)(void *), void *, const char *)); 115 1.3 cgd int alpha_shared_intr_get_sharetype __P((struct alpha_shared_intr *, 116 1.3 cgd unsigned int)); 117 1.3 cgd int alpha_shared_intr_isactive __P((struct alpha_shared_intr *, 118 1.3 cgd unsigned int)); 119 1.3 cgd void alpha_shared_intr_set_dfltsharetype __P((struct alpha_shared_intr *, 120 1.3 cgd unsigned int, int)); 121 1.3 cgd void alpha_shared_intr_set_maxstrays __P((struct alpha_shared_intr *, 122 1.3 cgd unsigned int, int)); 123 1.3 cgd void alpha_shared_intr_stray __P((struct alpha_shared_intr *, unsigned int, 124 1.3 cgd const char *)); 125 1.2 cgd 126 1.11 mjacob #endif 127 1.2 cgd #endif 128
Indexes created Fri Sep 26 20:09:58 GMT 2025