param.h revision 1.2.2.2
1 1.2.2.2 bouyer /* $NetBSD: param.h,v 1.2.2.2 2001/04/23 09:41:45 bouyer Exp $ */ 2 1.2.2.2 bouyer 3 1.2.2.2 bouyer /*- 4 1.2.2.2 bouyer * Copyright (c) 1990 The Regents of the University of California. 5 1.2.2.2 bouyer * All rights reserved. 6 1.2.2.2 bouyer * 7 1.2.2.2 bouyer * This code is derived from software contributed to Berkeley by 8 1.2.2.2 bouyer * William Jolitz. 9 1.2.2.2 bouyer * 10 1.2.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.2.2.2 bouyer * are met: 13 1.2.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.2.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.2.2.2 bouyer * must display the following acknowledgement: 20 1.2.2.2 bouyer * This product includes software developed by the University of 21 1.2.2.2 bouyer * California, Berkeley and its contributors. 22 1.2.2.2 bouyer * 4. Neither the name of the University nor the names of its contributors 23 1.2.2.2 bouyer * may be used to endorse or promote products derived from this software 24 1.2.2.2 bouyer * without specific prior written permission. 25 1.2.2.2 bouyer * 26 1.2.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 1.2.2.2 bouyer * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 1.2.2.2 bouyer * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 1.2.2.2 bouyer * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 1.2.2.2 bouyer * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 1.2.2.2 bouyer * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 1.2.2.2 bouyer * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 1.2.2.2 bouyer * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 1.2.2.2 bouyer * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 1.2.2.2 bouyer * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 1.2.2.2 bouyer * SUCH DAMAGE. 37 1.2.2.2 bouyer * 38 1.2.2.2 bouyer * @(#)param.h 5.8 (Berkeley) 6/28/91 39 1.2.2.2 bouyer */ 40 1.2.2.2 bouyer 41 1.2.2.2 bouyer /* 42 1.2.2.2 bouyer * Machine dependent constants for hpcsh 43 1.2.2.2 bouyer */ 44 1.2.2.2 bouyer 45 1.2.2.2 bouyer #ifndef _HPCSH_PARAM_H_ 46 1.2.2.2 bouyer #define _HPCSH_PARAM_H_ 47 1.2.2.2 bouyer 48 1.2.2.2 bouyer #ifdef _KERNEL 49 1.2.2.2 bouyer #ifdef _LOCORE 50 1.2.2.2 bouyer #include <machine/psl.h> 51 1.2.2.2 bouyer #else 52 1.2.2.2 bouyer #include <machine/cpu.h> 53 1.2.2.2 bouyer #endif 54 1.2.2.2 bouyer #endif 55 1.2.2.2 bouyer 56 1.2.2.2 bouyer #define _MACHINE_ARCH sh3el 57 1.2.2.2 bouyer #define MACHINE_ARCH "sh3el" 58 1.2.2.2 bouyer 59 1.2.2.2 bouyer #define _MACHINE hpcsh 60 1.2.2.2 bouyer #define MACHINE "hpcsh" 61 1.2.2.2 bouyer 62 1.2.2.2 bouyer #define MID_MACHINE MID_SH3 63 1.2.2.2 bouyer 64 1.2.2.2 bouyer /* 65 1.2.2.2 bouyer * Round p (pointer or byte index) up to a correctly-aligned value 66 1.2.2.2 bouyer * for all data types (int, long, ...). The result is u_int and 67 1.2.2.2 bouyer * must be cast to any desired pointer type. 68 1.2.2.2 bouyer * 69 1.2.2.2 bouyer * ALIGNED_POINTER is a boolean macro that checks whether an address 70 1.2.2.2 bouyer * is valid to fetch data elements of type t from on this architecture. 71 1.2.2.2 bouyer * This does not reflect the optimal alignment, just the possibility 72 1.2.2.2 bouyer * (within reasonable limits). 73 1.2.2.2 bouyer * 74 1.2.2.2 bouyer */ 75 1.2.2.2 bouyer #define ALIGNBYTES (sizeof(int) - 1) 76 1.2.2.2 bouyer #define ALIGN(p) (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES) 77 1.2.2.2 bouyer #define ALIGNED_POINTER(p, t) ((((u_long)(p)) & (sizeof(t)-1)) == 0) 78 1.2.2.2 bouyer 79 1.2.2.2 bouyer #define PGSHIFT 12 /* LOG2(NBPG) */ 80 1.2.2.2 bouyer #define NBPG (1 << PGSHIFT) /* bytes/page */ 81 1.2.2.2 bouyer #define PGOFSET (NBPG-1) /* byte offset into page */ 82 1.2.2.2 bouyer #define NPTEPG (NBPG/(sizeof (pt_entry_t))) 83 1.2.2.2 bouyer 84 1.2.2.2 bouyer #if defined _KERNEL && !defined _LOCORE 85 1.2.2.2 bouyer extern vaddr_t ram_start; 86 1.2.2.2 bouyer #define KERNBASE ram_start /* start of kernel virtual space */ 87 1.2.2.2 bouyer #define KERNTEXTOFF ram_start /* start of kernel text */ 88 1.2.2.2 bouyer #endif 89 1.2.2.2 bouyer #define KERNSIZE 0x01800000 /* size of kernel virtual space */ 90 1.2.2.2 bouyer #define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) 91 1.2.2.2 bouyer 92 1.2.2.2 bouyer #define NPGDIR (1*NBPG) 93 1.2.2.2 bouyer #define SYSMAP (5*NBPG) /* page table area offset from _end */ 94 1.2.2.2 bouyer 95 1.2.2.2 bouyer #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 96 1.2.2.2 bouyer #define DEV_BSIZE (1 << DEV_BSHIFT) 97 1.2.2.2 bouyer #define BLKDEV_IOSIZE 2048 98 1.2.2.2 bouyer #define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 99 1.2.2.2 bouyer 100 1.2.2.2 bouyer #define SSIZE 1 /* initial stack size/NBPG */ 101 1.2.2.2 bouyer #define SINCR 1 /* increment of stack/NBPG */ 102 1.2.2.2 bouyer #if 0 103 1.2.2.2 bouyer #define UPAGES 2 /* pages of u-area */ 104 1.2.2.2 bouyer #else 105 1.2.2.2 bouyer #define UPAGES 4 /* pages of u-area */ 106 1.2.2.2 bouyer #endif 107 1.2.2.2 bouyer #define USPACE (UPAGES * NBPG) /* total size of u-area */ 108 1.2.2.2 bouyer 109 1.2.2.2 bouyer #ifndef MSGBUFSIZE 110 1.2.2.2 bouyer #define MSGBUFSIZE NBPG /* default message buffer size */ 111 1.2.2.2 bouyer #endif 112 1.2.2.2 bouyer 113 1.2.2.2 bouyer /* 114 1.2.2.2 bouyer * Constants related to network buffer management. 115 1.2.2.2 bouyer * MCLBYTES must be no larger than CLBYTES (the software page size), and, 116 1.2.2.2 bouyer * on machines that exchange pages of input or output buffers with mbuf 117 1.2.2.2 bouyer * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 118 1.2.2.2 bouyer * of the hardware page size. 119 1.2.2.2 bouyer */ 120 1.2.2.2 bouyer #define MSIZE 256 /* size of an mbuf */ 121 1.2.2.2 bouyer 122 1.2.2.2 bouyer #ifndef MCLSHIFT 123 1.2.2.2 bouyer # define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 124 1.2.2.2 bouyer #endif /* MCLSHIFT */ 125 1.2.2.2 bouyer 126 1.2.2.2 bouyer #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 127 1.2.2.2 bouyer #define MCLOFSET (MCLBYTES - 1) /* offset within a m_buf cluster */ 128 1.2.2.2 bouyer 129 1.2.2.2 bouyer #ifndef NMBCLUSTERS 130 1.2.2.2 bouyer #ifdef GATEWAY 131 1.2.2.2 bouyer #define NMBCLUSTERS 512 /* map size, max cluster allocation */ 132 1.2.2.2 bouyer #else 133 1.2.2.2 bouyer #define NMBCLUSTERS 256 /* map size, max cluster allocation */ 134 1.2.2.2 bouyer #endif 135 1.2.2.2 bouyer #endif 136 1.2.2.2 bouyer 137 1.2.2.2 bouyer /* 138 1.2.2.2 bouyer * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized 139 1.2.2.2 bouyer * logical pages. 140 1.2.2.2 bouyer */ 141 1.2.2.2 bouyer #define NKMEMPAGES_MIN_DEFAULT ((6 * 1024 * 1024) >> PAGE_SHIFT) 142 1.2.2.2 bouyer #define NKMEMPAGES_MAX_DEFAULT ((6 * 1024 * 1024) >> PAGE_SHIFT) 143 1.2.2.2 bouyer 144 1.2.2.2 bouyer /* pages ("clicks") to disk blocks */ 145 1.2.2.2 bouyer #define ctod(x) ((x) << (PGSHIFT - DEV_BSHIFT)) 146 1.2.2.2 bouyer #define dtoc(x) ((x) >> (PGSHIFT - DEV_BSHIFT)) 147 1.2.2.2 bouyer 148 1.2.2.2 bouyer /* bytes to pages */ 149 1.2.2.2 bouyer #define ctob(x) ((x) << PGSHIFT) 150 1.2.2.2 bouyer #define btoc(x) (((x) + PGOFSET) >> PGSHIFT) 151 1.2.2.2 bouyer 152 1.2.2.2 bouyer /* bytes to disk blocks */ 153 1.2.2.2 bouyer #define dbtob(x) ((x) << DEV_BSHIFT) 154 1.2.2.2 bouyer #define btodb(x) ((x) >> DEV_BSHIFT) 155 1.2.2.2 bouyer 156 1.2.2.2 bouyer /* 157 1.2.2.2 bouyer * Map a ``block device block'' to a file system block. 158 1.2.2.2 bouyer * This should be device dependent, and should use the bsize 159 1.2.2.2 bouyer * field from the disk label. 160 1.2.2.2 bouyer * For now though just use DEV_BSIZE. 161 1.2.2.2 bouyer */ 162 1.2.2.2 bouyer #define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE / DEV_BSIZE)) 163 1.2.2.2 bouyer 164 1.2.2.2 bouyer /* 165 1.2.2.2 bouyer * Mach derived conversion macros 166 1.2.2.2 bouyer */ 167 1.2.2.2 bouyer #define sh3_round_pdr(x) ((((unsigned)(x)) + PDOFSET) & ~PDOFSET) 168 1.2.2.2 bouyer #define sh3_trunc_pdr(x) ((unsigned)(x) & ~PDOFSET) 169 1.2.2.2 bouyer #define sh3_btod(x) ((unsigned)(x) >> PDSHIFT) 170 1.2.2.2 bouyer #define sh3_dtob(x) ((unsigned)(x) << PDSHIFT) 171 1.2.2.2 bouyer #define sh3_round_page(x) ((((unsigned)(x)) + PGOFSET) & ~PGOFSET) 172 1.2.2.2 bouyer #define sh3_trunc_page(x) ((unsigned)(x) & ~PGOFSET) 173 1.2.2.2 bouyer #define sh3_btop(x) ((unsigned)(x) >> PGSHIFT) 174 1.2.2.2 bouyer #define sh3_ptob(x) ((unsigned)(x) << PGSHIFT) 175 1.2.2.2 bouyer 176 1.2.2.2 bouyer #endif /* _HPCSH_PARAM_H_ */ 177
Indexes created Wed Oct 01 15:09:59 GMT 2025