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param.h revision 1.13.4.2 
      1 /*	$NetBSD: param.h,v 1.13.4.2 2012/10/30 17:20:25 yamt Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1982, 1986, 1990, 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.
     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 1.16 92/12/20
     37  *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
     38  */
     39 
     40 #ifndef	_MACHINE_PARAM_H_
     41 #define	_MACHINE_PARAM_H_
     42 
     43 /*
     44  * Machine dependent constants for the Sun2 series.
     45  */
     46 #define	_MACHINE	sun2
     47 #define	MACHINE		"sun2"
     48 #define	_MACHINE_ARCH	m68000
     49 #define	MACHINE_ARCH	"m68000"
     50 #define	MID_MACHINE	MID_M680002K
     51 
     52 #define PGSHIFT		11		/* LOG2(NBPG) */
     53 
     54 #ifdef MSGBUFSIZE
     55 #error "MSGBUFSIZE is not user-adjustable for this arch"
     56 #endif
     57 #define MSGBUFOFF	0x0
     58 #define MSGBUFSIZE	((NBPG * 4) - MSGBUFOFF)
     59 
     60 /* This is needed by ps (actually USPACE). */
     61 #define	UPAGES		(16384 / NBPG)		/* pages of u-area */
     62 
     63 #if defined(_KERNEL) || defined(_STANDALONE)
     64 
     65 #define	KERNBASE	0x00006000	/* start of kernel virtual */
     66 #define	KERN_END	0x00E00000	/* end of kernel virtual */
     67 
     68 #define	MAXBSIZE	0x4000		/* max FS block size */
     69 #define	MAXPHYS		0xe000
     70 
     71 /*
     72  * XXX fredette - we force a small cluster size to help me debug
     73  * this on my low-memory machine.  These should go away at some point.
     74  */
     75 #define MCLSHIFT	10
     76 
     77 /*
     78  * XXX fredette - we must define this, otw UBC consumes 8MB of kernel VM.
     79  * For now, we make it absurdly small, perhaps it can grow later.
     80  */
     81 #define	UBC_NWINS	32
     82 
     83 #define	MAXEXEC		1
     84 
     85 #endif	/* _KERNEL */
     86 
     87 #include <m68k/param.h>
     88 
     89 /*
     90  * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
     91  * logical pages.
     92  */
     93 #define	NKMEMPAGES_MIN_DEFAULT	((4 * 1024 * 1024) >> PAGE_SHIFT)
     94 #define	NKMEMPAGES_MAX_DEFAULT	((8 * 1024 * 1024) >> PAGE_SHIFT)
     95 
     96 #if defined(_KERNEL) && !defined(_LOCORE)
     97 
     98 #include <machine/intr.h>
     99 
    100 extern void _delay(unsigned);
    101 #define delay(us)	_delay((us)<<8)
    102 #define	DELAY(n)	delay(n)
    103 
    104 #endif	/* _KERNEL && !_LOCORE */
    105 #endif	/* !_MACHINE_PARAM_H_ */
    106