1 /* $NetBSD: param.h,v 1.35 2002/02/26 15:13:26 simonb Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 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. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah Hdr: machparam.h 1.11 89/08/14 41 * 42 * @(#)param.h 8.1 (Berkeley) 6/10/93 43 */ 44 45 #ifndef _PMAX_PARAM_H_ 46 #define _PMAX_PARAM_H_ 47 48 /* 49 * Machine-dependent constants (VM, etc) common across MIPS cpus 50 */ 51 52 #include <mips/mips_param.h> 53 54 /* 55 * Machine dependent constants for mips-based DECstations. 56 */ 57 58 #define _MACHINE_ARCH mipsel 59 #define MACHINE_ARCH "mipsel" 60 #define _MACHINE pmax 61 #define MACHINE "pmax" 62 #define MID_MACHINE MID_PMAX 63 64 #define DEV_BSIZE 512 65 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 66 #define BLKDEV_IOSIZE 2048 67 #define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 68 69 /* 70 * Constants related to network buffer management. 71 * MCLBYTES must be no larger than NBPG (the software page size), and, 72 * on machines that exchange pages of input or output buffers with mbuf 73 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 74 * of the hardware page size. 75 */ 76 #define MSIZE 256 /* size of an mbuf */ 77 78 #ifndef MCLSHIFT 79 #define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 80 /* 2K cluster can hold Ether frame */ 81 #endif /* MCLSHIFT */ 82 83 #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 84 85 #ifndef NMBCLUSTERS 86 #if defined(_KERNEL_OPT) 87 #include "opt_gateway.h" 88 #endif 89 90 #ifdef GATEWAY 91 #define NMBCLUSTERS 2048 /* map size, max cluster allocation */ 92 #else 93 #define NMBCLUSTERS 1024 /* map size, max cluster allocation */ 94 #endif 95 #endif 96 97 #ifdef _KERNEL 98 #ifndef _LOCORE 99 100 void delay __P((int n)); 101 extern int cpuspeed; 102 #define DELAY(n) { int N = cpuspeed * (n); while (--N > 0); } 103 104 #include <machine/intr.h> 105 106 107 #endif /* !_LOCORE */ 108 #endif /* _KERNEL */ 109 110 #endif /* !_PMAX_PARAM_H_ */ 111