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vmparam.h revision 1.6 
      1 /*	$NetBSD: vmparam.h,v 1.6 2001/06/17 16:01:29 nonaka Exp $	*/
      2 
      3 #ifdef NEWPMAP
      4 #include <powerpc/mpc6xx/vmparam.h>
      5 #else
      6 /*-
      7  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
      8  * Copyright (C) 1995, 1996 TooLs GmbH.
      9  * All rights reserved.
     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. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by TooLs GmbH.
     22  * 4. The name of TooLs GmbH may not be used to endorse or promote products
     23  *    derived from this software without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
     26  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     28  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     29  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     30  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     31  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     33  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     34  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     35  */
     36 
     37 #ifndef	_MACHINE_VMPARAM_H_
     38 #define	_MACHINE_VMPARAM_H_
     39 
     40 #define	USRTEXT		NBPG
     41 #define	USRSTACK	VM_MAXUSER_ADDRESS
     42 
     43 #ifndef	MAXTSIZ
     44 #define	MAXTSIZ		(16*1024*1024)		/* max text size */
     45 #endif
     46 
     47 #ifndef	DFLDSIZ
     48 #define	DFLDSIZ		(32*1024*1024)		/* default data size */
     49 #endif
     50 
     51 #ifndef	MAXDSIZ
     52 #define	MAXDSIZ		(512*1024*1024)		/* max data size */
     53 #endif
     54 
     55 #ifndef	DFLSSIZ
     56 #define	DFLSSIZ		(1*1024*1024)		/* default stack size */
     57 #endif
     58 
     59 #ifndef	MAXSSIZ
     60 #define	MAXSSIZ		(32*1024*1024)		/* max stack size */
     61 #endif
     62 
     63 /*
     64  * Size of shared memory map
     65  */
     66 #ifndef	SHMMAXPGS
     67 #define	SHMMAXPGS	1024
     68 #endif
     69 
     70 /*
     71  * Size of User Raw I/O map
     72  */
     73 #define	USRIOSIZE	1024
     74 
     75 /*
     76  * The time for a process to be blocked before being very swappable.
     77  * This is a number of seconds which the system takes as being a non-trivial
     78  * amount of real time.  You probably shouldn't change this;
     79  * it is used in subtle ways (fractions and multiples of it are, that is, like
     80  * half of a ``long time'', almost a long time, etc.)
     81  * It is related to human patience and other factors which don't really
     82  * change over time.
     83  */
     84 #define	MAXSLP 		20
     85 
     86 /*
     87  * Would like to have MAX addresses = 0, but this doesn't (currently) work
     88  */
     89 #define	VM_MIN_ADDRESS		((vaddr_t)0)
     90 #define	VM_MAXUSER_ADDRESS	((vaddr_t)0xfffff000)
     91 #define	VM_MAX_ADDRESS		VM_MAXUSER_ADDRESS
     92 #define	VM_MIN_KERNEL_ADDRESS	((vaddr_t)(KERNEL_SR << ADDR_SR_SHFT))
     93 #define	VM_MAX_KERNEL_ADDRESS	(VM_MIN_KERNEL_ADDRESS + SEGMENT_LENGTH - 1)
     94 
     95 /* XXX max. amount of KVM to be used by buffers. */
     96 #ifndef VM_MAX_KERNEL_BUF
     97 #define	VM_MAX_KERNEL_BUF	(SEGMENT_LENGTH * 7 / 10)
     98 #endif
     99 
    100 /*
    101  * Override the default pager_map size, there's not enough KVA.
    102  */
    103 #define	PAGER_MAP_SIZE		(4 * 1024 * 1024)
    104 
    105 #define	VM_PHYS_SIZE		(USRIOSIZE * NBPG)
    106 
    107 #define	__HAVE_PMAP_PHYSSEG
    108 
    109 #ifndef _LOCORE
    110 struct pmap_physseg {
    111 	struct pv_entry *pvent;
    112 	char *attrs;
    113 };
    114 #endif /* _LOCORE */
    115 
    116 #define VM_PHYSSEG_MAX		32
    117 #define VM_PHYSSEG_STRAT	VM_PSTRAT_BSEARCH
    118 #define VM_PHYSSEG_NOADD		/* can't add RAM after vm_mem_init */
    119 
    120 #define VM_NFREELIST		1
    121 #define VM_FREELIST_DEFAULT	0
    122 
    123 #endif /* _MACHINE_VMPARAM_H_ */
    124 #endif
    125