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vmparam.h revision 1.14.4.1 
      1 /*	$NetBSD: vmparam.h,v 1.14.4.1 2001/11/12 21:17:23 thorpej 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 #ifdef NEWPMAP
     35 #include <powerpc/mpc6xx/vmparam.h>
     36 #define _MACHINE_VMPARAM_H_
     37 #endif
     38 
     39 #ifndef	_MACHINE_VMPARAM_H_
     40 #define	_MACHINE_VMPARAM_H_
     41 
     42 #define	USRTEXT		NBPG
     43 #define	USRSTACK	VM_MAXUSER_ADDRESS
     44 
     45 #ifndef	MAXTSIZ
     46 #define	MAXTSIZ		(16*1024*1024)		/* max text size */
     47 #endif
     48 
     49 #ifndef	DFLDSIZ
     50 #define	DFLDSIZ		(16*1024*1024)		/* default data size */
     51 #endif
     52 
     53 #ifndef	MAXDSIZ
     54 #define	MAXDSIZ		(512*1024*1024)		/* max data size */
     55 #endif
     56 
     57 #ifndef	DFLSSIZ
     58 #define	DFLSSIZ		(1*1024*1024)		/* default stack size */
     59 #endif
     60 
     61 #ifndef	MAXSSIZ
     62 #define	MAXSSIZ		(32*1024*1024)		/* max stack size */
     63 #endif
     64 
     65 /*
     66  * Size of shared memory map
     67  */
     68 #ifndef	SHMMAXPGS
     69 #define	SHMMAXPGS	1024
     70 #endif
     71 
     72 /*
     73  * Size of User Raw I/O map
     74  */
     75 #define	USRIOSIZE	1024
     76 
     77 /*
     78  * The time for a process to be blocked before being very swappable.
     79  * This is a number of seconds which the system takes as being a non-trivial
     80  * amount of real time.  You probably shouldn't change this;
     81  * it is used in subtle ways (fractions and multiples of it are, that is, like
     82  * half of a ``long time'', almost a long time, etc.)
     83  * It is related to human patience and other factors which don't really
     84  * change over time.
     85  */
     86 #define	MAXSLP 		20
     87 
     88 /*
     89  * Would like to have MAX addresses = 0, but this doesn't (currently) work
     90  */
     91 #define	VM_MIN_ADDRESS		((vaddr_t)0)
     92 #define	VM_MAXUSER_ADDRESS	((vaddr_t)0xfffff000)
     93 #define	VM_MAX_ADDRESS		VM_MAXUSER_ADDRESS
     94 #define	VM_MIN_KERNEL_ADDRESS	((vaddr_t)(KERNEL_SR << ADDR_SR_SHFT))
     95 #define	VM_MAX_KERNEL_ADDRESS	(VM_MIN_KERNEL_ADDRESS + SEGMENT_LENGTH - 1)
     96 
     97 /* XXX max. amount of KVM to be used by buffers. */
     98 #ifndef VM_MAX_KERNEL_BUF
     99 #define VM_MAX_KERNEL_BUF	(SEGMENT_LENGTH / 2)
    100 #endif
    101 
    102 /*
    103  * Override the default pager_map size, there's not enough KVA.
    104  */
    105 #define PAGER_MAP_SIZE		(4 * 1024 * 1024)
    106 
    107 #define	VM_PHYS_SIZE		(USRIOSIZE * NBPG)
    108 
    109 #define	__HAVE_PMAP_PHYSSEG
    110 
    111 struct pmap_physseg {
    112 	struct pv_entry *pvent;
    113 	char *attrs;
    114 };
    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