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param.h revision 1.45 
      1 /*	$NetBSD: param.h,v 1.45 1997/09/20 12:10:38 leo Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994, 1995 Gordon W. Ross
      5  * Copyright (c) 1993 Adam Glass
      6  * Copyright (c) 1988 University of Utah.
      7  * Copyright (c) 1982, 1986, 1990, 1993
      8  *	The Regents of the University of California.  All rights reserved.
      9  *
     10  * This code is derived from software contributed to Berkeley by
     11  * the Systems Programming Group of the University of Utah Computer
     12  * Science Department.
     13  *
     14  * Redistribution and use in source and binary forms, with or without
     15  * modification, are permitted provided that the following conditions
     16  * are met:
     17  * 1. Redistributions of source code must retain the above copyright
     18  *    notice, this list of conditions and the following disclaimer.
     19  * 2. Redistributions in binary form must reproduce the above copyright
     20  *    notice, this list of conditions and the following disclaimer in the
     21  *    documentation and/or other materials provided with the distribution.
     22  * 3. All advertising materials mentioning features or use of this software
     23  *    must display the following acknowledgement:
     24  *	This product includes software developed by the University of
     25  *	California, Berkeley and its contributors.
     26  * 4. Neither the name of the University nor the names of its contributors
     27  *    may be used to endorse or promote products derived from this software
     28  *    without specific prior written permission.
     29  *
     30  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     31  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     32  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     33  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     34  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     35  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     36  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     37  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     38  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     39  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     40  * SUCH DAMAGE.
     41  *
     42  *	from: Utah Hdr: machparam.h 1.16 92/12/20
     43  *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
     44  */
     45 
     46 #ifndef	_MACHINE_PARAM_H_
     47 #define	_MACHINE_PARAM_H_
     48 
     49 /*
     50  * Machine dependent constants for the Sun3 series.
     51  */
     52 #define	_MACHINE	sun3
     53 #define	MACHINE		"sun3"
     54 
     55 #define	PGSHIFT		13		/* LOG2(NBPG) */
     56 
     57 #define SEGSHIFT	17	        /* LOG2(NBSG) */
     58 #define NBSG		(1 << SEGSHIFT)	/* bytes/segment */
     59 #define	SEGOFSET	(NBSG-1)	/* byte offset into segment */
     60 
     61 #define	MAXBSIZE	0x8000		/* max FS block size - XXX */
     62 
     63 #define	KERNBASE	0x0E000000	/* start of kernel virtual */
     64 #define	KERNTEXTOFF	0x0E004000	/* start of kernel text */
     65 #define	KERN_END	0x0FE00000	/* end of kernel virtual */
     66 
     67 #define	UPAGES		2		/* pages of u-area */
     68 
     69 #define MSGBUFSIZE	(4096 - 4 * sizeof(long))
     70 
     71 #include <m68k/param.h>
     72 
     73 /*
     74  * Size of kernel malloc arena in CLBYTES-sized logical pages
     75  */
     76 #ifndef NKMEMCLUSTERS
     77 # define	NKMEMCLUSTERS	(2048 * 1024 / CLBYTES)
     78 #endif
     79 
     80 /* XXX - Does this really belong here? -gwr */
     81 #include <machine/psl.h>
     82 
     83 #if defined(_KERNEL) && !defined(_LOCORE)
     84 extern void _delay __P((unsigned));
     85 #define delay(us)	_delay((us)<<8)
     86 #define	DELAY(n)	delay(n)
     87 #endif	/* _KERNEL && !_LOCORE */
     88 
     89 #endif	/* !_MACHINE_PARAM_H_ */
     90