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vmparam.h revision 1.14.2.3
      1  1.14.2.1  uebayasi /*	$NetBSD: vmparam.h,v 1.14.2.3 2010/04/30 14:39:27 uebayasi Exp $	*/
      2       1.1  fredette 
      3      1.14     skrll /*	$OpenBSD: vmparam.h,v 1.33 2006/06/04 17:21:24 miod Exp $	*/
      4       1.1  fredette 
      5       1.1  fredette /*
      6       1.1  fredette  * Copyright (c) 1988-1994, The University of Utah and
      7       1.1  fredette  * the Computer Systems Laboratory at the University of Utah (CSL).
      8       1.1  fredette  * All rights reserved.
      9       1.1  fredette  *
     10       1.1  fredette  * Permission to use, copy, modify and distribute this software is hereby
     11       1.1  fredette  * granted provided that (1) source code retains these copyright, permission,
     12       1.1  fredette  * and disclaimer notices, and (2) redistributions including binaries
     13       1.1  fredette  * reproduce the notices in supporting documentation, and (3) all advertising
     14       1.1  fredette  * materials mentioning features or use of this software display the following
     15       1.1  fredette  * acknowledgement: ``This product includes software developed by the
     16       1.1  fredette  * Computer Systems Laboratory at the University of Utah.''
     17       1.1  fredette  *
     18       1.1  fredette  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
     19       1.1  fredette  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
     20       1.1  fredette  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     21       1.1  fredette  *
     22       1.1  fredette  * CSL requests users of this software to return to csl-dist (at) cs.utah.edu any
     23       1.1  fredette  * improvements that they make and grant CSL redistribution rights.
     24       1.1  fredette  *
     25       1.1  fredette  * 	Utah $Hdr: vmparam.h 1.16 94/12/16$
     26       1.1  fredette  */
     27       1.1  fredette 
     28       1.1  fredette #ifndef _HPPA_VMPARAM_H_
     29       1.1  fredette #define _HPPA_VMPARAM_H_
     30       1.1  fredette 
     31       1.1  fredette /*
     32       1.1  fredette  * Machine dependent constants for HP PA
     33       1.1  fredette  */
     34       1.4   thorpej 
     35       1.4   thorpej /*
     36       1.8     skrll  * We use 4K pages on the HP PA.  Override the PAGE_* definitions
     37       1.4   thorpej  * to be compile-time constants.
     38       1.4   thorpej  */
     39       1.4   thorpej #define	PAGE_SHIFT	12
     40       1.4   thorpej #define	PAGE_SIZE	(1 << PAGE_SHIFT)
     41       1.4   thorpej #define	PAGE_MASK	(PAGE_SIZE - 1)
     42       1.4   thorpej 
     43       1.1  fredette /*
     44       1.9     skrll  * USRSTACK is the bottom (start) of the user stack.
     45       1.1  fredette  */
     46       1.6       chs #define	USRSTACK	0x70000000		/* Start of user stack */
     47       1.1  fredette #define	SYSCALLGATE	0xC0000000		/* syscall gateway page */
     48       1.1  fredette 
     49       1.1  fredette /*
     50       1.1  fredette  * Virtual memory related constants, all in bytes
     51       1.1  fredette  */
     52       1.1  fredette #ifndef MAXTSIZ
     53       1.1  fredette #define	MAXTSIZ		(0x40000000)		/* max text size */
     54       1.1  fredette #endif
     55       1.1  fredette #ifndef DFLDSIZ
     56       1.1  fredette #define	DFLDSIZ		(16*1024*1024)		/* initial data size limit */
     57       1.1  fredette #endif
     58       1.1  fredette #ifndef MAXDSIZ
     59       1.1  fredette #define	MAXDSIZ		(USRSTACK-MAXTSIZ)	/* max data size */
     60       1.1  fredette #endif
     61       1.1  fredette #ifndef	DFLSSIZ
     62      1.10     skrll #define	DFLSSIZ		(2*1024*1024)		/* initial stack size limit */
     63       1.1  fredette #endif
     64       1.1  fredette #ifndef	MAXSSIZ
     65      1.11     skrll #define	MAXSSIZ		(256*1024*1024)		/* max stack size */
     66       1.1  fredette #endif
     67       1.1  fredette 
     68       1.1  fredette #ifndef USRIOSIZE
     69       1.1  fredette #define	USRIOSIZE	((2*HPPA_PGALIAS)/PAGE_SIZE)	/* 2mb */
     70       1.1  fredette #endif
     71       1.1  fredette 
     72       1.1  fredette /*
     73       1.1  fredette  * The time for a process to be blocked before being very swappable.
     74       1.1  fredette  * This is a number of seconds which the system takes as being a non-trivial
     75       1.1  fredette  * amount of real time.  You probably shouldn't change this;
     76       1.1  fredette  * it is used in subtle ways (fractions and multiples of it are, that is, like
     77       1.1  fredette  * half of a ``long time'', almost a long time, etc.)
     78       1.1  fredette  * It is related to human patience and other factors which don't really
     79       1.1  fredette  * change over time.
     80       1.1  fredette  */
     81      1.14     skrll /* XXXNH - remove??? */
     82       1.1  fredette #define	MAXSLP 		20
     83       1.1  fredette 
     84       1.1  fredette /* user/kernel map constants */
     85       1.1  fredette #define	VM_MIN_ADDRESS		((vaddr_t)0)
     86       1.1  fredette #define	VM_MAXUSER_ADDRESS	((vaddr_t)0xc0000000)
     87       1.1  fredette #define	VM_MAX_ADDRESS		VM_MAXUSER_ADDRESS
     88      1.14     skrll 
     89      1.14     skrll #define	VM_MIN_KERNEL_ADDRESS	((vaddr_t)0xc0001000)
     90      1.14     skrll #define	VM_MAX_KERNEL_ADDRESS	((vaddr_t)0xef000000)
     91       1.1  fredette 
     92       1.1  fredette /* virtual sizes (bytes) for various kernel submaps */
     93       1.1  fredette #define VM_PHYS_SIZE		(USRIOSIZE*PAGE_SIZE)
     94       1.1  fredette 
     95       1.1  fredette #define	VM_PHYSSEG_MAX	8	/* this many physmem segments */
     96       1.1  fredette #define	VM_PHYSSEG_STRAT	VM_PSTRAT_BIGFIRST
     97       1.1  fredette 
     98  1.14.2.3  uebayasi #define	VM_NFREELIST		2
     99       1.1  fredette #define	VM_FREELIST_DEFAULT	0
    100  1.14.2.3  uebayasi #define	VM_FREELIST_ISADMA	1
    101       1.1  fredette 
    102      1.14     skrll #if defined(_KERNEL) && !defined(_LOCORE)
    103      1.14     skrll #define __HAVE_VM_PAGE_MD
    104      1.14     skrll 
    105      1.14     skrll struct pv_entry;
    106      1.14     skrll 
    107      1.14     skrll struct vm_page_md {
    108      1.14     skrll 	kmutex_t	pvh_lock;	/* locks every pv on this list */
    109      1.14     skrll 	struct pv_entry	*pvh_list;	/* head of list (locked by pvh_lock) */
    110      1.14     skrll 	u_int		pvh_attrs;	/* to preserve ref/mod */
    111      1.14     skrll 	int		pvh_aliases;	/* alias counting */
    112      1.14     skrll };
    113      1.14     skrll 
    114  1.14.2.1  uebayasi #define	VM_MDPAGE_INIT(md, pa) \
    115      1.14     skrll do {									\
    116  1.14.2.1  uebayasi 	mutex_init(&(md)->pvh_lock, MUTEX_NODEBUG, IPL_VM);		\
    117  1.14.2.1  uebayasi 	(md)->pvh_list = NULL;						\
    118  1.14.2.1  uebayasi 	(md)->pvh_attrs = 0;						\
    119  1.14.2.1  uebayasi 	(md)->pvh_aliases = 0;						\
    120      1.14     skrll } while (0)
    121      1.14     skrll #endif
    122      1.14     skrll 
    123       1.1  fredette #endif	/* _HPPA_VMPARAM_H_ */
    124