param.h revision 1.7
1 /* $NetBSD: param.h,v 1.7 2003/08/07 16:26:47 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: Utah $Hdr: machparam.h 1.11 89/08/14$ 36 * 37 * @(#)param.h 7.8 (Berkeley) 6/28/91 38 */ 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * from: Utah $Hdr: machparam.h 1.11 89/08/14$ 75 * 76 * @(#)param.h 7.8 (Berkeley) 6/28/91 77 */ 78 79 #ifndef _MACHINE_PARAM_H_ 80 #define _MACHINE_PARAM_H_ 81 82 #ifdef _KERNEL 83 #ifndef _LOCORE 84 #include <machine/cpu.h> 85 #endif /* _LOCORE */ 86 #endif 87 88 /* 89 * Machine dependent constants for Amiga PowerPC (32-bit only currently) 90 */ 91 #define MACHINE "amigappc" 92 #define MACHINE_ARCH "powerpc" 93 #define MID_MACHINE MID_POWERPC 94 95 #define ALIGNBYTES (sizeof(double) - 1) 96 #define ALIGN(p) (((u_int)(p) + ALIGNBYTES) & ~ALIGNBYTES) 97 #define ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0) 98 99 #define PGSHIFT 12 100 #define NBPG (1 << PGSHIFT) /* Page size */ 101 #define PGOFSET (NBPG - 1) 102 103 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 104 #define DEV_BSIZE (1 << DEV_BSHIFT) 105 #define BLKDEV_IOSIZE NBPG 106 #define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 107 108 #define UPAGES 4 109 #define USPACE (UPAGES * NBPG) 110 111 #ifndef MSGBUFSIZE 112 #define MSGBUFSIZE NBPG /* default message buffer size */ 113 #endif 114 115 #define KERNBASE 0x00000000 /* start of kernel virtual */ 116 117 /* 118 * Constants related to network buffer management. 119 * MCLBYTES must be no larger than NBPG (the software page size), and, 120 * on machines that exchange pages of input or output buffers with mbuf 121 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 122 * of the hardware page size. 123 */ 124 #define MSIZE 256 /* size of an mbuf */ 125 #define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 126 #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 127 128 #ifndef NMBCLUSTERS 129 130 #if defined(_KERNEL_OPT) 131 #include "opt_gateway.h" 132 #endif 133 134 #ifdef GATEWAY 135 #define NMBCLUSTERS 512 /* map size, max cluster allocation */ 136 #else 137 #define NMBCLUSTERS 256 /* map size, max cluster allocation */ 138 #endif 139 #endif 140 141 /* 142 * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized 143 * logical pages. 144 */ 145 #define NKMEMPAGES_MIN_DEFAULT ((128 * 1024 * 1024) >> PAGE_SHIFT) 146 #define NKMEMPAGES_MAX_DEFAULT ((128 * 1024 * 1024) >> PAGE_SHIFT) 147 148 /* 149 * pages ("clicks") to disk blocks 150 */ 151 #define ctod(x) ((x) << (PGSHIFT - DEV_BSHIFT)) 152 #define dtoc(x) ((x) >> (PGSHIFT - DEV_BSHIFT)) 153 /* 154 * bytes to pages 155 */ 156 #define ctob(x) ((x) << PGSHIFT) 157 #define btoc(x) (((x) + PGOFSET) >> PGSHIFT) 158 159 /* 160 * bytes to disk blocks 161 */ 162 #define dbtob(x) ((x) << DEV_BSHIFT) 163 #define btodb(x) ((x) >> DEV_BSHIFT) 164 165 /* 166 * Segment handling stuff 167 */ 168 #define SEGMENT_LENGTH 0x10000000 169 #define SEGMENT_MASK 0xf0000000 170 171 /* 172 * Fixed segments 173 */ 174 #define USER_SR 13 175 #define KERNEL_SR 14 176 #define KERNEL_SEGMENT (0xf0000 + KERNEL_SR) 177 #define EMPTY_SEGMENT 0xfffff0 178 #define USER_ADDR ((void *)(USER_SR << ADDR_SR_SHFT)) 179 180 /* 181 * Some system constants 182 */ 183 #ifndef NPMAPS 184 #define NPMAPS 32768 /* Number of pmaps in system */ 185 #endif 186 187 #ifdef _KERNEL 188 /* 189 * point to the custom.intenar and custom.intenaw respectively. 190 extern volatile unsigned short *amiga_intena_read, *amiga_intena_write; 191 */ 192 193 /* ADAM: redefiniton of cpu.h */ 194 #if 0 195 #ifndef _LOCORE 196 void delay __P((int)); 197 void DELAY __P((int)); 198 #endif /* !_LOCORE */ 199 #endif /* 0 */ 200 #endif /* _KERNEL */ 201 202 #endif /* def _MACHINE_PARAM_H_ */ 203
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