1 /* $NetBSD: intr.h,v 1.23 2008/04/28 20:23:30 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001 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. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _MACHINE_INTR_H_ 33 #define _MACHINE_INTR_H_ 34 35 #define IPL_NONE 0 /* disable only this interrupt */ 36 #define IPL_SOFTCLOCK 1 /* clock software interrupts (SI 0) */ 37 #define IPL_SOFTBIO 1 /* bio software interrupts (SI 0) */ 38 #define IPL_SOFTNET 2 /* network software interrupts (SI 1) */ 39 #define IPL_SOFTSERIAL 2 /* serial software interrupts (SI 1) */ 40 #define IPL_VM 3 41 #define IPL_SCHED 4 /* disable clock interrupts */ 42 #define IPL_HIGH 4 /* disable all interrupts */ 43 44 #define _IPL_N 5 45 46 #define _IPL_SI0_FIRST IPL_SOFTCLOCK 47 #define _IPL_SI0_LAST IPL_SOFTBIO 48 49 #define _IPL_SI1_FIRST IPL_SOFTNET 50 #define _IPL_SI1_LAST IPL_SOFTSERIAL 51 52 #ifdef _KERNEL 53 #ifndef _LOCORE 54 55 #include <sys/device.h> 56 #include <mips/locore.h> 57 58 extern const uint32_t ipl_sr_bits[_IPL_N]; 59 60 #define spl0() (void)_spllower(0) 61 #define splx(s) (void)_splset(s) 62 63 #define splsoft() _splraise(ipl_sr_bits[IPL_SOFT]) 64 65 typedef int ipl_t; 66 typedef struct { 67 ipl_t _sr; 68 } ipl_cookie_t; 69 70 static inline ipl_cookie_t 71 makeiplcookie(ipl_t ipl) 72 { 73 74 return (ipl_cookie_t){._sr = ipl_sr_bits[ipl]}; 75 } 76 77 static inline int 78 splraiseipl(ipl_cookie_t icookie) 79 { 80 81 return _splraise(icookie._sr); 82 } 83 84 #include <sys/spl.h> 85 86 struct newsmips_intrhand { 87 LIST_ENTRY(newsmips_intrhand) ih_q; 88 struct evcnt intr_count; 89 int (*ih_func)(void *); 90 void *ih_arg; 91 u_int ih_level; 92 u_int ih_mask; 93 u_int ih_priority; 94 }; 95 96 struct newsmips_intr { 97 LIST_HEAD(,newsmips_intrhand) intr_q; 98 }; 99 100 /* 101 * Index into intrcnt[], which is defined in locore 102 */ 103 #define SERIAL0_INTR 0 104 #define SERIAL1_INTR 1 105 #define SERIAL2_INTR 2 106 #define LANCE_INTR 3 107 #define SCSI_INTR 4 108 #define ERROR_INTR 5 109 #define HARDCLOCK_INTR 6 110 #define FPU_INTR 7 111 #define SLOT1_INTR 8 112 #define SLOT2_INTR 9 113 #define SLOT3_INTR 10 114 #define FLOPPY_INTR 11 115 #define STRAY_INTR 12 116 117 extern u_int intrcnt[]; 118 119 /* handle i/o device interrupts */ 120 #ifdef news3400 121 void news3400_intr(uint32_t, uint32_t, uint32_t, uint32_t); 122 #endif 123 #ifdef news5000 124 void news5000_intr(uint32_t, uint32_t, uint32_t, uint32_t); 125 #endif 126 extern void (*hardware_intr)(uint32_t, uint32_t, uint32_t, uint32_t); 127 128 extern void (*enable_intr)(void); 129 extern void (*disable_intr)(void); 130 extern void (*enable_timer)(void); 131 132 #endif /* !_LOCORE */ 133 #endif /* _KERNEL */ 134 #endif /* _MACHINE_INTR_H_ */ 135