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param.h revision 1.4.16.1
      1  1.4.16.1    yamt /*	$NetBSD: param.h,v 1.4.16.1 2006/12/30 20:46:33 yamt Exp $	*/
      2       1.1     wdk 
      3       1.1     wdk /*
      4       1.1     wdk  * Copyright (c) 1992, 1993
      5       1.1     wdk  *	The Regents of the University of California.  All rights reserved.
      6       1.4     agc  *
      7       1.4     agc  * This code is derived from software contributed to Berkeley by
      8       1.4     agc  * the Systems Programming Group of the University of Utah Computer
      9       1.4     agc  * Science Department and Ralph Campbell.
     10       1.4     agc  *
     11       1.4     agc  * Redistribution and use in source and binary forms, with or without
     12       1.4     agc  * modification, are permitted provided that the following conditions
     13       1.4     agc  * are met:
     14       1.4     agc  * 1. Redistributions of source code must retain the above copyright
     15       1.4     agc  *    notice, this list of conditions and the following disclaimer.
     16       1.4     agc  * 2. Redistributions in binary form must reproduce the above copyright
     17       1.4     agc  *    notice, this list of conditions and the following disclaimer in the
     18       1.4     agc  *    documentation and/or other materials provided with the distribution.
     19       1.4     agc  * 3. Neither the name of the University nor the names of its contributors
     20       1.4     agc  *    may be used to endorse or promote products derived from this software
     21       1.4     agc  *    without specific prior written permission.
     22       1.4     agc  *
     23       1.4     agc  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24       1.4     agc  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25       1.4     agc  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26       1.4     agc  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27       1.4     agc  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28       1.4     agc  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29       1.4     agc  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30       1.4     agc  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31       1.4     agc  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32       1.4     agc  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33       1.4     agc  * SUCH DAMAGE.
     34       1.4     agc  *
     35       1.4     agc  * from: Utah Hdr: machparam.h 1.11 89/08/14
     36       1.4     agc  *
     37       1.4     agc  *	@(#)param.h	8.1 (Berkeley) 6/10/93
     38       1.4     agc  */
     39       1.4     agc /*
     40       1.4     agc  * Copyright (c) 1988 University of Utah.
     41       1.1     wdk  *
     42       1.1     wdk  * This code is derived from software contributed to Berkeley by
     43       1.1     wdk  * the Systems Programming Group of the University of Utah Computer
     44       1.1     wdk  * Science Department and Ralph Campbell.
     45       1.1     wdk  *
     46       1.1     wdk  * Redistribution and use in source and binary forms, with or without
     47       1.1     wdk  * modification, are permitted provided that the following conditions
     48       1.1     wdk  * are met:
     49       1.1     wdk  * 1. Redistributions of source code must retain the above copyright
     50       1.1     wdk  *    notice, this list of conditions and the following disclaimer.
     51       1.1     wdk  * 2. Redistributions in binary form must reproduce the above copyright
     52       1.1     wdk  *    notice, this list of conditions and the following disclaimer in the
     53       1.1     wdk  *    documentation and/or other materials provided with the distribution.
     54       1.1     wdk  * 3. All advertising materials mentioning features or use of this software
     55       1.1     wdk  *    must display the following acknowledgement:
     56       1.1     wdk  *	This product includes software developed by the University of
     57       1.1     wdk  *	California, Berkeley and its contributors.
     58       1.1     wdk  * 4. Neither the name of the University nor the names of its contributors
     59       1.1     wdk  *    may be used to endorse or promote products derived from this software
     60       1.1     wdk  *    without specific prior written permission.
     61       1.1     wdk  *
     62       1.1     wdk  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     63       1.1     wdk  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     64       1.1     wdk  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     65       1.1     wdk  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     66       1.1     wdk  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     67       1.1     wdk  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     68       1.1     wdk  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     69       1.1     wdk  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     70       1.1     wdk  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     71       1.1     wdk  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     72       1.1     wdk  * SUCH DAMAGE.
     73       1.1     wdk  *
     74       1.1     wdk  * from: Utah Hdr: machparam.h 1.11 89/08/14
     75       1.1     wdk  *
     76       1.1     wdk  *	@(#)param.h	8.1 (Berkeley) 6/10/93
     77       1.1     wdk  */
     78       1.1     wdk 
     79       1.1     wdk /*
     80       1.1     wdk  * Machine-dependent constants (VM, etc) common across MIPS cpus
     81       1.1     wdk  */
     82       1.1     wdk 
     83  1.4.16.1    yamt #ifndef	_MIPSCO_PARAM_H_
     84  1.4.16.1    yamt #define	_MIPSCO_PARAM_H_
     85  1.4.16.1    yamt 
     86       1.1     wdk #include <mips/mips_param.h>
     87       1.1     wdk 
     88       1.1     wdk /*
     89       1.1     wdk  * Machine dependent constants for Mips Corp. machines
     90       1.1     wdk  */
     91       1.1     wdk 
     92       1.1     wdk #define	_MACHINE_ARCH	mipseb
     93       1.1     wdk #define	MACHINE_ARCH	"mipseb"
     94       1.1     wdk #define	_MACHINE	mipsco
     95       1.1     wdk #define	MACHINE		"mipsco"
     96       1.1     wdk #define	MID_MACHINE	MID_MIPS
     97       1.1     wdk 
     98       1.1     wdk #define	KERNBASE	0x80000000	/* start of kernel virtual */
     99       1.1     wdk #define KERNTEXTOFF	0x80001000	/* start of kernel text for kvm_mkdb */
    100       1.1     wdk #define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)
    101       1.1     wdk 
    102       1.1     wdk #define	DEV_BSIZE	512
    103       1.1     wdk #define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
    104       1.1     wdk #define BLKDEV_IOSIZE	2048
    105       1.1     wdk #define	MAXPHYS		(64 * 1024)	/* max raw I/O transfer size */
    106       1.1     wdk 
    107       1.1     wdk /*
    108       1.1     wdk  * Constants related to network buffer management.
    109       1.3  simonb  * MCLBYTES must be no larger than NBPG (the software page size), and,
    110       1.1     wdk  * on machines that exchange pages of input or output buffers with mbuf
    111       1.1     wdk  * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
    112       1.1     wdk  * of the hardware page size.
    113       1.1     wdk  */
    114       1.3  simonb #define	MSIZE		256		/* size of an mbuf */
    115       1.1     wdk 
    116       1.1     wdk #ifndef MCLSHIFT
    117       1.3  simonb #define	MCLSHIFT	11		/* convert bytes to m_buf clusters */
    118       1.1     wdk 					/* 2K cluster can hold Ether frame */
    119       1.1     wdk #endif	/* MCLSHIFT */
    120       1.1     wdk 
    121       1.1     wdk #define	MCLBYTES	(1 << MCLSHIFT)	/* size of a m_buf cluster */
    122       1.1     wdk 
    123       1.1     wdk #ifndef NMBCLUSTERS
    124       1.2     mrg #if defined(_KERNEL_OPT)
    125       1.1     wdk #include "opt_gateway.h"
    126       1.2     mrg #endif
    127       1.1     wdk 
    128       1.1     wdk #ifdef GATEWAY
    129       1.1     wdk #define	NMBCLUSTERS	2048		/* map size, max cluster allocation */
    130       1.1     wdk #else
    131       1.1     wdk #define	NMBCLUSTERS	1024		/* map size, max cluster allocation */
    132       1.1     wdk #endif
    133       1.1     wdk #endif
    134       1.1     wdk 
    135       1.1     wdk #include <machine/intr.h>
    136       1.1     wdk 
    137       1.1     wdk #ifdef _KERNEL
    138       1.1     wdk #ifndef _LOCORE
    139       1.1     wdk 
    140       1.1     wdk extern void delay __P((int n));
    141       1.1     wdk extern int cpuspeed;
    142  1.4.16.1    yamt static __inline void __attribute__((__unused__))
    143  1.4.16.1    yamt DELAY(int n)
    144  1.4.16.1    yamt {
    145  1.4.16.1    yamt 	register int __N = cpuspeed * n;
    146  1.4.16.1    yamt 
    147  1.4.16.1    yamt 	do {
    148  1.4.16.1    yamt 		__asm("addiu %0,%1,-1" : "=r" (__N) : "0" (__N));
    149  1.4.16.1    yamt 	} while (__N > 0);
    150  1.4.16.1    yamt }
    151       1.1     wdk 
    152       1.1     wdk #endif	/* !_LOCORE */
    153       1.1     wdk #endif	/* _KERNEL */
    154  1.4.16.1    yamt 
    155  1.4.16.1    yamt #endif	/* !_MIPSCO_PARAM_H_ */
    156