param.h revision 1.25
1/* $NetBSD: param.h,v 1.25 2009/08/13 05:15:08 matt 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 98#define KERNBASE 0x80000000 /* start of kernel virtual */ 99#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) 100 101#define DEV_BSIZE 512 102#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 103#define BLKDEV_IOSIZE 2048 104#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 105 106#define SSIZE 1 /* initial stack size/NBPG */ 107#define SINCR 1 /* increment of stack/NBPG */ 108 109#define UPAGES 2 /* pages of u-area */ 110#if defined(_LOCORE) && defined(notyet) 111#define UADDR 0xffffffffffffc000 /* address of u */ 112#else 113#define UADDR 0xffffc000 /* address of u */ 114#endif 115#define USPACE (UPAGES*NBPG) /* size of u-area in bytes */ 116#define UVPN (UADDR>>PGSHIFT)/* virtual page number of u */ 117#define KERNELSTACK (UADDR+UPAGES*NBPG) /* top of kernel stack */ 118 119/* 120 * Constants related to network buffer management. 121 * MCLBYTES must be no larger than NBPG (the software page size), and, 122 * on machines that exchange pages of input or output buffers with mbuf 123 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 124 * of the hardware page size. 125 */ 126#define MSIZE 256 /* size of an mbuf */ 127 128#ifndef MCLSHIFT 129#define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 130 /* 2K cluster can hold Ether frame */ 131#endif /* MCLSHIFT */ 132 133#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 134 135#ifndef NMBCLUSTERS 136#if defined(_KERNEL_OPT) 137#include "opt_gateway.h" 138#endif 139 140#ifdef GATEWAY 141#define NMBCLUSTERS 2048 /* map size, max cluster allocation */ 142#else 143#define NMBCLUSTERS 1024 /* map size, max cluster allocation */ 144#endif 145#endif 146 147/* bytes to disk blocks */ 148#define btodb(x) ((x) >> DEV_BSHIFT) 149#define dbtob(x) ((x) << DEV_BSHIFT) 150 151#ifdef _KERNEL 152#ifndef _LOCORE 153 154extern int cpuspeed; 155void delay(unsigned int n); 156 157#define DELAY(n) delay(n) 158 159#include <machine/intr.h> 160 161#endif /* _LOCORE */ 162#endif /* _KERNEL */ 163 164#endif /* _ARC_PARAM_H_ */ 165