109 lines
3.8 KiB
C
109 lines
3.8 KiB
C
/* $NetBSD: param.h,v 1.3 2002/02/26 15:13:24 simonb Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department and Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah Hdr: machparam.h 1.11 89/08/14
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*
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* @(#)param.h 8.1 (Berkeley) 6/10/93
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*/
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/*
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* Machine-dependent constants (VM, etc) common across MIPS cpus
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*/
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#include <mips/mips_param.h>
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/*
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* Machine dependent constants for Mips Corp. machines
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*/
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#define _MACHINE_ARCH mipseb
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#define MACHINE_ARCH "mipseb"
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#define _MACHINE mipsco
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#define MACHINE "mipsco"
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#define MID_MACHINE MID_MIPS
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#define KERNBASE 0x80000000 /* start of kernel virtual */
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#define KERNTEXTOFF 0x80001000 /* start of kernel text for kvm_mkdb */
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#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
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#define DEV_BSIZE 512
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#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
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#define BLKDEV_IOSIZE 2048
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#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */
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/*
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* Constants related to network buffer management.
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* MCLBYTES must be no larger than NBPG (the software page size), and,
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* on machines that exchange pages of input or output buffers with mbuf
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* clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
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* of the hardware page size.
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*/
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#define MSIZE 256 /* size of an mbuf */
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#ifndef MCLSHIFT
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#define MCLSHIFT 11 /* convert bytes to m_buf clusters */
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/* 2K cluster can hold Ether frame */
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#endif /* MCLSHIFT */
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#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
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#ifndef NMBCLUSTERS
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#if defined(_KERNEL_OPT)
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#include "opt_gateway.h"
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#endif
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#ifdef GATEWAY
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#define NMBCLUSTERS 2048 /* map size, max cluster allocation */
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#else
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#define NMBCLUSTERS 1024 /* map size, max cluster allocation */
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#endif
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#endif
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#include <machine/intr.h>
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#ifdef _KERNEL
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#ifndef _LOCORE
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extern void delay __P((int n));
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extern int cpuspeed;
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#define DELAY(n) { register int N = cpuspeed * (n); while (--N > 0); }
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#endif /* !_LOCORE */
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#endif /* _KERNEL */
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