1/* $NetBSD: param.h,v 1.2 2011/02/08 20:20:11 rmind 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. 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 * 38 * @(#)param.h 8.1 (Berkeley) 6/10/93 39 */ 40 41#ifndef _EMIPS_PARAM_H_ 42#define _EMIPS_PARAM_H_ 43 44/* 45 * Machine dependent constants for mips-based DECstations. 46 */ 47 48#define _MACHINE emips 49#define MACHINE "emips" 50 51#include <mips/mips_param.h> 52 53#define DEV_BSIZE 512 54#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 55#define BLKDEV_IOSIZE 2048 56#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 57 58/* 59 * Constants related to network buffer management. 60 * MCLBYTES must be no larger than NBPG (the software page size), and, 61 * on machines that exchange pages of input or output buffers with mbuf 62 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 63 * of the hardware page size. 64 */ 65#define MSIZE 256 /* size of an mbuf */ 66 67#ifndef MCLSHIFT 68#define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 69 /* 2K cluster can hold Ether frame */ 70#endif /* MCLSHIFT */ 71 72#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 73 74#ifndef NMBCLUSTERS 75#if defined(_KERNEL_OPT) 76#include "opt_gateway.h" 77#endif 78 79#ifdef GATEWAY 80#define NMBCLUSTERS 2048 /* map size, max cluster allocation */ 81#else 82#define NMBCLUSTERS 1024 /* map size, max cluster allocation */ 83#endif 84#endif 85 86#ifdef _KERNEL 87#ifndef _LOCORE 88 89void delay __P((int n)); 90extern int cpuspeed; 91static __inline void __attribute__((__unused__)) 92DELAY(int n) 93{ 94 register int __N = cpuspeed * n; 95 96 do { 97 __asm("addiu %0,%1,-1" : "=r" (__N) : "0" (__N)); 98 } while (__N > 0); 99} 100 101#include <machine/intr.h> 102 103#endif /* !_LOCORE */ 104#endif /* _KERNEL */ 105 106#endif /* !_EMIPS_PARAM_H_ */ 107