1 /* $NetBSD: intr.h,v 1.22 2007/12/03 15:34:04 ad 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _MACHINE_INTR_H_ 40 #define _MACHINE_INTR_H_ 41 42 #define IPL_NONE 0 /* disable only this interrupt */ 43 #define IPL_SOFTCLOCK 1 /* clock software interrupts (SI 0) */ 44 #define IPL_SOFTBIO 1 /* bio software interrupts (SI 0) */ 45 #define IPL_SOFTNET 2 /* network software interrupts (SI 1) */ 46 #define IPL_SOFTSERIAL 2 /* serial software interrupts (SI 1) */ 47 #define IPL_VM 3 48 #define IPL_SCHED 4 /* disable clock interrupts */ 49 #define IPL_HIGH 4 /* disable all interrupts */ 50 51 #define _IPL_N 5 52 53 #define _IPL_SI0_FIRST IPL_SOFTCLOCK 54 #define _IPL_SI0_LAST IPL_SOFTBIO 55 56 #define _IPL_SI1_FIRST IPL_SOFTNET 57 #define _IPL_SI1_LAST IPL_SOFTSERIAL 58 59 #ifdef _KERNEL 60 #ifndef _LOCORE 61 62 #include <sys/device.h> 63 #include <mips/locore.h> 64 65 extern const uint32_t ipl_sr_bits[_IPL_N]; 66 67 #define spl0() (void)_spllower(0) 68 #define splx(s) (void)_splset(s) 69 70 #define splsoft() _splraise(ipl_sr_bits[IPL_SOFT]) 71 72 typedef int ipl_t; 73 typedef struct { 74 ipl_t _sr; 75 } ipl_cookie_t; 76 77 static inline ipl_cookie_t 78 makeiplcookie(ipl_t ipl) 79 { 80 81 return (ipl_cookie_t){._sr = ipl_sr_bits[ipl]}; 82 } 83 84 static inline int 85 splraiseipl(ipl_cookie_t icookie) 86 { 87 88 return _splraise(icookie._sr); 89 } 90 91 #include <sys/spl.h> 92 93 struct newsmips_intrhand { 94 LIST_ENTRY(newsmips_intrhand) ih_q; 95 struct evcnt intr_count; 96 int (*ih_func)(void *); 97 void *ih_arg; 98 u_int ih_level; 99 u_int ih_mask; 100 u_int ih_priority; 101 }; 102 103 struct newsmips_intr { 104 LIST_HEAD(,newsmips_intrhand) intr_q; 105 }; 106 107 /* 108 * Index into intrcnt[], which is defined in locore 109 */ 110 #define SERIAL0_INTR 0 111 #define SERIAL1_INTR 1 112 #define SERIAL2_INTR 2 113 #define LANCE_INTR 3 114 #define SCSI_INTR 4 115 #define ERROR_INTR 5 116 #define HARDCLOCK_INTR 6 117 #define FPU_INTR 7 118 #define SLOT1_INTR 8 119 #define SLOT2_INTR 9 120 #define SLOT3_INTR 10 121 #define FLOPPY_INTR 11 122 #define STRAY_INTR 12 123 124 extern u_int intrcnt[]; 125 126 /* handle i/o device interrupts */ 127 #ifdef news3400 128 void news3400_intr(uint32_t, uint32_t, uint32_t, uint32_t); 129 #endif 130 #ifdef news5000 131 void news5000_intr(uint32_t, uint32_t, uint32_t, uint32_t); 132 #endif 133 extern void (*hardware_intr)(uint32_t, uint32_t, uint32_t, uint32_t); 134 135 extern void (*enable_intr)(void); 136 extern void (*disable_intr)(void); 137 extern void (*enable_timer)(void); 138 139 #endif /* !_LOCORE */ 140 #endif /* _KERNEL */ 141 #endif /* _MACHINE_INTR_H_ */ 142