param.h revision 1.23
1/* $NetBSD: param.h,v 1.23 2005/11/06 11:15:40 tsutsui Exp $ */ 2/* $OpenBSD: param.h,v 1.9 1997/04/30 09:54:15 niklas Exp $ */ 3 4/* 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department and Ralph Campbell. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah Hdr: machparam.h 1.11 89/08/14 37 * from: @(#)param.h 8.1 (Berkeley) 6/10/93 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 and Ralph Campbell. 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 * from: @(#)param.h 8.1 (Berkeley) 6/10/93 76 */ 77 78#ifndef _ARC_PARAM_H_ 79#define _ARC_PARAM_H_ 80 81/* 82 * Machine-dependent constants (VM, etc) common across MIPS cpus 83 */ 84#include <mips/mips_param.h> 85 86/* 87 * Machine dependent constants for ARC BIOS MIPS machines: 88 * Acer Labs PICA_61 89 * Deskstation rPC44 90 * Deskstation Tyne 91 * Etc 92 */ 93#define _MACHINE_ARCH mipsel 94#define MACHINE_ARCH "mipsel" 95#define _MACHINE arc 96#define MACHINE "arc" 97#define MID_MACHINE MID_PMAX /* XXX Bogus, but needed for now... */ 98 99#define KERNBASE 0x80000000 /* start of kernel virtual */ 100#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) 101 102#define DEV_BSIZE 512 103#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 104#define BLKDEV_IOSIZE 2048 105#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 106 107#define SSIZE 1 /* initial stack size/NBPG */ 108#define SINCR 1 /* increment of stack/NBPG */ 109 110#define UPAGES 2 /* pages of u-area */ 111#if defined(_LOCORE) && defined(notyet) 112#define UADDR 0xffffffffffffc000 /* address of u */ 113#else 114#define UADDR 0xffffc000 /* address of u */ 115#endif 116#define USPACE (UPAGES*NBPG) /* size of u-area in bytes */ 117#define UVPN (UADDR>>PGSHIFT)/* virtual page number of u */ 118#define KERNELSTACK (UADDR+UPAGES*NBPG) /* top of kernel stack */ 119 120/* 121 * Constants related to network buffer management. 122 * MCLBYTES must be no larger than NBPG (the software page size), and, 123 * on machines that exchange pages of input or output buffers with mbuf 124 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 125 * of the hardware page size. 126 */ 127#define MSIZE 256 /* size of an mbuf */ 128 129#ifndef MCLSHIFT 130#define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 131 /* 2K cluster can hold Ether frame */ 132#endif /* MCLSHIFT */ 133 134#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 135 136#ifndef NMBCLUSTERS 137#if defined(_KERNEL_OPT) 138#include "opt_gateway.h" 139#endif 140 141#ifdef GATEWAY 142#define NMBCLUSTERS 2048 /* map size, max cluster allocation */ 143#else 144#define NMBCLUSTERS 1024 /* map size, max cluster allocation */ 145#endif 146#endif 147 148/* bytes to disk blocks */ 149#define btodb(x) ((x) >> DEV_BSHIFT) 150#define dbtob(x) ((x) << DEV_BSHIFT) 151 152#ifdef _KERNEL 153#ifndef _LOCORE 154 155extern int cpuspeed; 156void delay(unsigned int n); 157 158#define DELAY(n) delay(n) 159 160#include <machine/intr.h> 161 162#endif /* _LOCORE */ 163#endif /* _KERNEL */ 164 165#endif /* _ARC_PARAM_H_ */ 166