intr.h revision 1.9.8.2
1 /* $NetBSD: intr.h,v 1.9.8.2 2002/01/08 00:27:30 nathanw Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Soren S. Jorvang 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the 18 * NetBSD Project. See http://www.netbsd.org/ for 19 * information about NetBSD. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #ifndef _SGIMIPS_INTR_H_ 36 #define _SGIMIPS_INTR_H_ 37 38 #define IPL_NONE 0 /* Disable only this interrupt. */ 39 #define IPL_BIO 1 /* Disable block I/O interrupts. */ 40 #define IPL_NET 2 /* Disable network interrupts. */ 41 #define IPL_TTY 3 /* Disable terminal interrupts. */ 42 #define IPL_CLOCK 4 /* Disable clock interrupts. */ 43 #define IPL_STATCLOCK 5 /* Disable profiling interrupts. */ 44 #ifndef __NO_SOFT_SERIAL_INTERRUPT 45 #define IPL_SERIAL 6 /* Disable serial hardware interrupts. */ 46 #endif 47 #define IPL_HIGH 7 /* Disable all interrupts. */ 48 #define NIPL 8 49 50 /* Interrupt sharing types. */ 51 #define IST_NONE 0 /* none */ 52 #define IST_PULSE 1 /* pulsed */ 53 #define IST_EDGE 2 /* edge-triggered */ 54 #define IST_LEVEL 3 /* level-triggered */ 55 56 /* Soft interrupt numbers */ 57 #define IPL_SOFTSERIAL 0 /* serial software interrupts */ 58 #define IPL_SOFTNET 1 /* network software interrupts */ 59 #define IPL_SOFTCLOCK 2 /* clock software interrupts */ 60 #define IPL_NSOFT 3 61 62 #define IPL_SOFTNAMES { \ 63 "serial", \ 64 "net", \ 65 "clock", \ 66 } 67 68 #ifdef _KERNEL 69 #ifndef _LOCORE 70 71 #include <sys/queue.h> 72 #include <sys/types.h> 73 #include <sys/device.h> 74 #include <mips/cpuregs.h> 75 76 /* 77 * software simulated interrupt 78 */ 79 #define setsoft(x) do { \ 80 extern u_int ssir; \ 81 int s; \ 82 \ 83 s = splhigh(); \ 84 ssir |= 1 << (x); \ 85 _setsoftintr(MIPS_SOFT_INT_MASK_1); \ 86 splx(s); \ 87 } while (0) 88 89 #ifdef __HAVE_GENERIC_SOFT_INTERRUPTS 90 91 #define softintr_schedule(arg) \ 92 do { \ 93 struct sgimips_intrhand *__ih = (arg); \ 94 __ih->ih_pending = 1; \ 95 setsoft(__ih->ih_intrhead->intr_ipl); \ 96 } while (0) 97 98 extern struct sgimips_intrhand *softnet_intrhand; 99 100 #define setsoftnet() softintr_schedule(softnet_intrhand) 101 102 #else /* ! __HAVE_GENERIC_SOFT_INTERRUPTS */ 103 104 #define SIR_NET 0x01 105 #define SIR_SERIAL 0x02 106 107 #define setsoftclock() _setsoftintr(MIPS_SOFT_INT_MASK_0) 108 #define setsoftnet() setsoft(SIR_NET) 109 #define setsoftserial() setsoft(SIR_SERIAL) 110 #endif /* __HAVE_GENERIC_SOFT_INTERRUPTS */ 111 112 #define NINTR 32 113 114 struct sgimips_intrhand { 115 LIST_ENTRY(sgimips_intrhand) 116 ih_q; 117 int (*ih_fun) __P((void *)); 118 void *ih_arg; 119 struct sgimips_intr *ih_intrhead; 120 int ih_pending; 121 }; 122 123 struct sgimips_intr { 124 LIST_HEAD(,sgimips_intrhand) 125 intr_q; 126 struct evcnt ih_evcnt; 127 unsigned long intr_ipl; 128 }; 129 130 extern struct sgimips_intrhand intrtab[]; 131 132 extern int _splraise(int); 133 extern int _spllower(int); 134 extern int _splset(int); 135 extern int _splget(void); 136 extern void _splnone(void); 137 extern void _setsoftintr(int); 138 extern void _clrsoftintr(int); 139 140 extern u_int32_t biomask; 141 extern u_int32_t netmask; 142 extern u_int32_t ttymask; 143 extern u_int32_t clockmask; 144 145 #define splhigh() _splraise(MIPS_INT_MASK) 146 #define spl0() (void)_spllower(0) 147 #define splx(s) (void)_splset(s) 148 #define splbio() _splraise(biomask) 149 #define splnet() _splraise(netmask) 150 #define spltty() _splraise(ttymask) 151 #define splserial() spltty() 152 #define splvm() spltty() 153 #define splclock() _splraise(clockmask) 154 #define splstatclock() splclock() 155 156 #define splsched() splhigh() 157 #define spllock() splhigh() 158 #define spllpt() spltty() 159 160 #define splsoft() _splraise(MIPS_SOFT_INT_MASK_1) 161 #define splsoftclock() splsoft() 162 #define splsoftnet() splsoft() 163 164 #define spllowersoftclock() _spllower(MIPS_SOFT_INT_MASK_1) 165 166 extern void * cpu_intr_establish(int, int, int (*)(void *), void *); 167 void * softintr_establish(int, void (*)(void *), void *); 168 void softintr_disestablish(void *); 169 void softintr_init(void); 170 void softintr_dispatch(void); 171 172 173 #endif /* _LOCORE */ 174 #endif /* !_KERNEL */ 175 176 #endif /* !_SGIMIPS_INTR_H_ */ 177
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