intr.h revision 1.11.20.1
1 /* $NetBSD: intr.h,v 1.11.20.1 2007/01/12 01:00:54 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1998 Jonathan Stone. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Jonathan Stone for 17 * the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef _MACHINE_INTR_H_ 34 #define _MACHINE_INTR_H_ 35 36 #define IPL_NONE 0 /* disable only this interrupt */ 37 #define IPL_SOFT 1 /* generic software interrupts */ 38 #define IPL_SOFTCLOCK 2 /* clock software interrupts */ 39 #define IPL_SOFTNET 3 /* network software interrupts */ 40 #define IPL_SOFTSERIAL 4 /* serial software interrupts */ 41 #define IPL_BIO 5 /* disable block I/O interrupts */ 42 #define IPL_NET 6 /* disable network interrupts */ 43 #define IPL_TTY 7 /* disable terminal interrupts */ 44 #define IPL_SERIAL IPL_TTY 45 #define IPL_LPT IPL_TTY 46 #define IPL_VM IPL_TTY 47 #define IPL_CLOCK 8 /* disable clock interrupts */ 48 #define IPL_STATCLOCK 9 /* disable profiling interrupts */ 49 #define IPL_SCHED IPL_CLOCK 50 #define IPL_HIGH 10 /* disable all interrupts */ 51 #define IPL_LOCK IPL_HIGH 52 53 #define IPL_N 11 54 55 /* Interrupt sharing types. */ 56 #define IST_NONE 0 /* none */ 57 #define IST_PULSE 1 /* pulsed */ 58 #define IST_EDGE 2 /* edge-triggered */ 59 #define IST_LEVEL 3 /* level-triggered */ 60 61 #define SI_SOFT 0 62 #define SI_SOFTCLOCK 1 63 #define SI_SOFTNET 2 64 #define SI_SOFTSERIAL 3 65 66 #define SI_NQUEUES 4 67 68 #define SI_QUEUENAMES { \ 69 "misc", \ 70 "clock", \ 71 "net", \ 72 "serial", \ 73 } 74 75 #ifdef _KERNEL 76 #ifndef _LOCORE 77 #include <sys/types.h> 78 #include <sys/device.h> 79 #include <sys/queue.h> 80 81 extern int _splraise __P((int)); 82 extern int _spllower __P((int)); 83 extern int _splset __P((int)); 84 extern int _splget __P((void)); 85 extern void _splnone __P((void)); 86 extern void _setsoftintr __P((int)); 87 extern void _clrsoftintr __P((int)); 88 89 /* 90 * software simulated interrupt 91 */ 92 #define setsoft(x) do { \ 93 extern u_int ssir; \ 94 int _s; \ 95 \ 96 _s = splhigh(); \ 97 ssir |= 1 << (x); \ 98 _setsoftintr(MIPS_SOFT_INT_MASK_1); \ 99 splx(_s); \ 100 } while (0) 101 102 #define softintr_schedule(arg) \ 103 do { \ 104 struct mipsco_intrhand *__ih = (arg); \ 105 __ih->ih_pending = 1; \ 106 setsoft(__ih->ih_intrhead->intr_siq); \ 107 } while (0) 108 109 extern struct mipsco_intrhand *softnet_intrhand; 110 111 #define setsoftnet() softintr_schedule(softnet_intrhand) 112 113 /* 114 * nesting interrupt masks. 115 */ 116 #define MIPS_INT_MASK_SPL_SOFT0 MIPS_SOFT_INT_MASK_0 117 #define MIPS_INT_MASK_SPL_SOFT1 (MIPS_SOFT_INT_MASK_1|MIPS_INT_MASK_SPL_SOFT0) 118 #define MIPS_INT_MASK_SPL0 (MIPS_INT_MASK_0|MIPS_INT_MASK_SPL_SOFT1) 119 #define MIPS_INT_MASK_SPL1 (MIPS_INT_MASK_1|MIPS_INT_MASK_SPL0) 120 #define MIPS_INT_MASK_SPL2 (MIPS_INT_MASK_2|MIPS_INT_MASK_SPL1) 121 #define MIPS_INT_MASK_SPL3 (MIPS_INT_MASK_3|MIPS_INT_MASK_SPL2) 122 #define MIPS_INT_MASK_SPL4 (MIPS_INT_MASK_4|MIPS_INT_MASK_SPL3) 123 #define MIPS_INT_MASK_SPL5 (MIPS_INT_MASK_5|MIPS_INT_MASK_SPL4) 124 125 #define spl0() (void)_spllower(0) 126 #define splx(s) (void)_splset(s) 127 #define splbio() _splraise(MIPS_INT_MASK_SPL1) 128 #define splnet() _splraise(MIPS_INT_MASK_SPL0) 129 #define spltty() _splraise(MIPS_INT_MASK_SPL0) 130 #define splvm() _splraise(MIPS_INT_MASK_SPL2) 131 #define splclock() _splraise(MIPS_INT_MASK_SPL2) 132 #define splstatclock() _splraise(MIPS_INT_MASK_SPL2) 133 #define splhigh() _splraise(MIPS_INT_MASK_SPL2) 134 #define splsched() splhigh() 135 #define spllock() splhigh() 136 #define splserial() spltty() 137 #define spllpt() spltty() 138 139 #define splsoft() _splraise(MIPS_INT_MASK_SPL_SOFT1) 140 #define splsoftclock() _splraise(MIPS_INT_MASK_SPL_SOFT0) 141 #define splsoftnet() splsoft() 142 #define splsoftserial() splsoft() 143 #define spllowersoftclock() _spllower(MIPS_INT_MASK_SPL_SOFT0) 144 145 typedef int ipl_t; 146 typedef struct { 147 int _sr; 148 } ipl_cookie_t; 149 150 ipl_cookie_t makeiplcookie(ipl_t ipl); 151 152 static inline int 153 splraiseipl(ipl_cookie_t icookie) 154 { 155 156 return _splraise(icookie._sr); 157 } 158 159 struct mipsco_intrhand { 160 LIST_ENTRY(mipsco_intrhand) 161 ih_q; 162 int (*ih_fun) __P((void *)); 163 void *ih_arg; 164 struct mipsco_intr *ih_intrhead; 165 int ih_pending; 166 }; 167 168 struct mipsco_intr { 169 LIST_HEAD(,mipsco_intrhand) 170 intr_q; 171 struct evcnt ih_evcnt; 172 unsigned long intr_siq; 173 }; 174 175 176 extern struct mipsco_intrhand intrtab[]; 177 178 #define SYS_INTR_LEVEL0 0 179 #define SYS_INTR_LEVEL1 1 180 #define SYS_INTR_LEVEL2 2 181 #define SYS_INTR_LEVEL3 3 182 #define SYS_INTR_LEVEL4 4 183 #define SYS_INTR_LEVEL5 5 184 #define SYS_INTR_SCSI 6 185 #define SYS_INTR_TIMER 7 186 #define SYS_INTR_ETHER 8 187 #define SYS_INTR_SCC0 9 188 #define SYS_INTR_FDC 10 189 #define SYS_INTR_ATBUS 11 190 191 #define MAX_INTR_COOKIES 16 192 193 #define CALL_INTR(lev) ((*intrtab[lev].ih_fun)(intrtab[lev].ih_arg)) 194 195 void *softintr_establish(int, void (*)(void *), void *); 196 void softintr_disestablish(void *); 197 void softintr_init(void); 198 void softintr_dispatch(void); 199 200 #endif /* !_LOCORE */ 201 #endif /* _KERNEL */ 202 #endif /* _MACHINE_INTR_H_ */ 203
Indexes created Wed Oct 15 16:09:53 GMT 2025