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vmparam.h revision 1.4 
      1 /*	$NetBSD: vmparam.h,v 1.4 1998/02/18 11:10:08 mycroft Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
      5  * Copyright (C) 1995, 1996 TooLs GmbH.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by TooLs GmbH.
     19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #define	USRTEXT		CLBYTES
     35 #define	USRSTACK	VM_MAXUSER_ADDRESS
     36 
     37 #ifndef	MAXTSIZ
     38 #define	MAXTSIZ		(16*1024*1024)		/* max text size */
     39 #endif
     40 
     41 #ifndef	DFLDSIZ
     42 #define	DFLDSIZ		(16*1024*1024)		/* default data size */
     43 #endif
     44 
     45 #ifndef	MAXDSIZ
     46 #define	MAXDSIZ		(512*1024*1024)		/* max data size */
     47 #endif
     48 
     49 #ifndef	DFLSSIZ
     50 #define	DFLSSIZ		(1*1024*1024)		/* default stack size */
     51 #endif
     52 
     53 #ifndef	MAXSSIZ
     54 #define	MAXSSIZ		(32*1024*1024)		/* max stack size */
     55 #endif
     56 
     57 /*
     58  * Size of shared memory map
     59  */
     60 #ifndef	SHMMAXPGS
     61 #define	SHMMAXPGS	1024
     62 #endif
     63 
     64 /*
     65  * Size of User Raw I/O map
     66  */
     67 #define	USRIOSIZE	1024
     68 
     69 /*
     70  * The time for a process to be blocked before being very swappable.
     71  * This is a number of seconds which the system takes as being a non-trivial
     72  * amount of real time.  You probably shouldn't change this;
     73  * it is used in subtle ways (fractions and multiples of it are, that is, like
     74  * half of a ``long time'', almost a long time, etc.)
     75  * It is related to human patience and other factors which don't really
     76  * change over time.
     77  */
     78 #define	MAXSLP 		20
     79 
     80 /*
     81  * Would like to have MAX addresses = 0, but this doesn't (currently) work
     82  */
     83 #define	VM_MIN_ADDRESS		((vm_offset_t)0)
     84 #define	VM_MAXUSER_ADDRESS	((vm_offset_t)0xfffff000)
     85 #define	VM_MAX_ADDRESS		VM_MAXUSER_ADDRESS
     86 #define	VM_MIN_KERNEL_ADDRESS	((vm_offset_t)(KERNEL_SR << ADDR_SR_SHFT))
     87 
     88 #define	VM_KMEM_SIZE		(NKMEMCLUSTERS * CLBYTES)
     89 #define	VM_MBUF_SIZE		(NMBCLUSTERS * CLBYTES)
     90 #define	VM_PHYS_SIZE		(USRIOSIZE * CLBYTES)
     91 
     92 /*
     93  * MACHINE_NONCONTIG is necessary for NetBSD/powerpc.
     94  */
     95 #define	MACHINE_NONCONTIG
     96