1 /* $NetBSD: intr.h,v 1.26 2009/04/03 14:47:48 uebayasi 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_SOFTCLOCK 1 /* generic software interrupts */ 40 #define IPL_SOFTBIO 1 /* serial software interrupts */ 41 #define IPL_SOFTNET 1 /* network software interrupts */ 42 #define IPL_SOFTSERIAL 1 /* clock software interrupts */ 43 #define IPL_VM 2 44 #define IPL_SCHED 3 45 #define IPL_HIGH 4 46 47 #define NIPL 5 48 49 /* Interrupt sharing types. */ 50 #define IST_NONE 0 /* none */ 51 #define IST_PULSE 1 /* pulsed */ 52 #define IST_EDGE 2 /* edge-triggered */ 53 #define IST_LEVEL 3 /* level-triggered */ 54 55 #ifdef _KERNEL 56 #ifndef _LOCORE 57 58 #include <sys/queue.h> 59 #include <sys/types.h> 60 #include <sys/evcnt.h> 61 #include <mips/cpuregs.h> 62 #include <mips/locore.h> 63 64 #define NINTR 32 65 66 struct sgimips_intrhand { 67 LIST_ENTRY(sgimips_intrhand) 68 ih_q; 69 int (*ih_fun) (void *); 70 void *ih_arg; 71 struct sgimips_intr *ih_intrhead; 72 struct sgimips_intrhand *ih_next; 73 int ih_pending; 74 }; 75 76 struct sgimips_intr { 77 LIST_HEAD(,sgimips_intrhand) 78 intr_q; 79 struct evcnt ih_evcnt; 80 unsigned long intr_ipl; 81 }; 82 83 extern struct sgimips_intrhand intrtab[]; 84 85 extern const int *ipl2spl_table; 86 87 #define spl0() (void)_spllower(0) 88 #define splx(s) (void)_splset(s) 89 #define splvm() _splraise(ipl2spl_table[IPL_VM]) 90 #define splsched() _splraise(ipl2spl_table[IPL_SCHED]) 91 #define splhigh() _splraise(MIPS_INT_MASK) 92 93 #define splsoftclock() _splraise(MIPS_SOFT_INT_MASK_1) 94 #define splsoftbio() splsoftclock() 95 #define splsoftnet() splsoftclock() 96 #define splsoftserial() splsoftclock() 97 98 extern void * cpu_intr_establish(int, int, int (*)(void *), void *); 99 100 typedef int ipl_t; 101 typedef struct { 102 int _spl; 103 } ipl_cookie_t; 104 105 ipl_cookie_t makeiplcookie(ipl_t); 106 107 static inline int 108 splraiseipl(ipl_cookie_t icookie) 109 { 110 111 return _splraise(icookie._spl); 112 } 113 114 #include <mips/softintr.h> 115 116 #endif /* _LOCORE */ 117 #endif /* !_KERNEL */ 118 119 #endif /* !_SGIMIPS_INTR_H_ */ 120