Home | History | Annotate | Line # | Download | only in include
param.h revision 1.6
      1 /*	$NetBSD: param.h,v 1.6 2005/01/22 15:36:09 chs Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1982, 1986, 1990, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * the Systems Programming Group of the University of Utah Computer
      9  * Science Department.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	from: Utah Hdr: machparam.h 1.16 92/12/20
     36  *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
     37  */
     38 /*
     39  * Copyright (c) 1988 University of Utah.
     40  *
     41  * This code is derived from software contributed to Berkeley by
     42  * the Systems Programming Group of the University of Utah Computer
     43  * Science Department.
     44  *
     45  * Redistribution and use in source and binary forms, with or without
     46  * modification, are permitted provided that the following conditions
     47  * are met:
     48  * 1. Redistributions of source code must retain the above copyright
     49  *    notice, this list of conditions and the following disclaimer.
     50  * 2. Redistributions in binary form must reproduce the above copyright
     51  *    notice, this list of conditions and the following disclaimer in the
     52  *    documentation and/or other materials provided with the distribution.
     53  * 3. All advertising materials mentioning features or use of this software
     54  *    must display the following acknowledgement:
     55  *	This product includes software developed by the University of
     56  *	California, Berkeley and its contributors.
     57  * 4. Neither the name of the University nor the names of its contributors
     58  *    may be used to endorse or promote products derived from this software
     59  *    without specific prior written permission.
     60  *
     61  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     62  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     63  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     64  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     65  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     66  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     67  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     68  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     69  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     70  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     71  * SUCH DAMAGE.
     72  *
     73  *	from: Utah Hdr: machparam.h 1.16 92/12/20
     74  *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
     75  */
     76 
     77 #ifndef	_MACHINE_PARAM_H_
     78 #define	_MACHINE_PARAM_H_
     79 
     80 /*
     81  * Machine dependent constants for the Sun2 series.
     82  */
     83 #define	_MACHINE	sun2
     84 #define	MACHINE		"sun2"
     85 #define	_MACHINE_ARCH	m68000
     86 #define	MACHINE_ARCH	"m68000"
     87 #define	MID_MACHINE	MID_M680002K
     88 
     89 #define PGSHIFT		11		/* LOG2(NBPG) */
     90 
     91 #ifdef MSGBUFSIZE
     92 #error "MSGBUFSIZE is not user-adjustable for this arch"
     93 #endif
     94 #define MSGBUFOFF	0x0
     95 #define MSGBUFSIZE	((NBPG * 4) - MSGBUFOFF)
     96 
     97 /* This is needed by ps (actually USPACE). */
     98 #define	UPAGES		(16384 / NBPG)		/* pages of u-area */
     99 
    100 #if defined(_KERNEL) || defined(_STANDALONE)
    101 
    102 #define	KERNBASE	0x00006000	/* start of kernel virtual */
    103 #define	KERN_END	0x00E00000	/* end of kernel virtual */
    104 
    105 #define SEGSHIFT	15	        /* LOG2(NBSG) */
    106 #define NBSG		(1 << SEGSHIFT)	/* bytes/segment */
    107 #define	SEGOFSET	(NBSG-1)	/* byte offset into segment */
    108 
    109 #define	MAXBSIZE	0x2000		/* max FS block size */
    110 #define	MAXPHYS		0xe000
    111 
    112 /*
    113  * XXX fredette - we force a small number of mbuf clusters and cluster
    114  * size to help me debug this on my low-memory machine.  These should
    115  * go away at some point.
    116  */
    117 #define	NMBCLUSTERS	64	/* map size, max cluster allocation */
    118 #define MCLSHIFT	10
    119 
    120 /*
    121  * XXX fredette - we must define this, otw UBC consumes 8MB of kernel VM.
    122  * For now, we make it absurdly small, perhaps it can grow later.
    123  */
    124 #define	UBC_NWINS	32
    125 
    126 #endif	/* _KERNEL */
    127 
    128 #include <m68k/param.h>
    129 
    130 /*
    131  * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
    132  * logical pages.
    133  */
    134 #define	NKMEMPAGES_MIN_DEFAULT	((3 * 1024 * 1024) >> PAGE_SHIFT)
    135 #define	NKMEMPAGES_MAX_DEFAULT	((3 * 1024 * 1024) >> PAGE_SHIFT)
    136 
    137 #if defined(_KERNEL) && !defined(_LOCORE)
    138 
    139 /* XXX - Does this really belong here? -gwr */
    140 #include <machine/psl.h>
    141 
    142 extern void _delay(unsigned);
    143 #define delay(us)	_delay((us)<<8)
    144 #define	DELAY(n)	delay(n)
    145 
    146 #endif	/* _KERNEL && !_LOCORE */
    147 #endif	/* !_MACHINE_PARAM_H_ */
    148