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/* $NetBSD: vmparam.h,v 1.1 2003/08/19 10:53:06 ragge Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)vmparam.h 5.9 (Berkeley) 5/12/91
*/
#ifndef _VMPARAM_H_
#define _VMPARAM_H_
/*
* Machine dependent constants for PDP10.
*/
/*
* We use 512 word VM pages on the PDP10.
* Override the PAGE_* definitions to be compile-time constants.
* Should really use all this in words instead, fake it as bytes for now.
*/
#define PAGE_SHIFT PGSHIFT
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (PAGE_SIZE - 1)
/*
* USRTEXT is the start of the user text/data space, while USRSTACK
* is the top (end) of the user stack.
*/
#define USRTEXT NBPG
#define USRSTACK (32*1024*1024)
/*
* Virtual memory related constants, all in bytes
*/
#ifndef MAXTSIZ
#define MAXTSIZ (1*1024*1024) /* max text size */
#endif
#ifndef DFLDSIZ
#define DFLDSIZ (8*1024*1024) /* initial data size limit */
#endif
#ifndef MAXDSIZ
#define MAXDSIZ (24*1024*1024) /* max data size */
#endif
#ifndef DFLSSIZ
#define DFLSSIZ (512*1024) /* initial stack size limit */
#endif
#ifndef MAXSSIZ
#define MAXSSIZ (1024*1024) /* max stack size */
#endif
/*
* Size of shared memory map
*/
#ifndef SHMMAXPGS
#define SHMMAXPGS 1024
#endif
#define VM_PHYSSEG_MAX 1
#define VM_PHYSSEG_NOADD
#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH /* XXX */
#define VM_NFREELIST 2
#define VM_FREELIST_DEFAULT 0
/*
* Mach derived constants
*/
/* user/kernel map constants */
#define VM_MIN_ADDRESS ((vaddr_t)0)
#define VM_MAXUSER_ADDRESS ((vaddr_t)USRSTACK)
#define VM_MAX_ADDRESS ((vaddr_t)USRSTACK)
#define VM_MIN_KERNEL_ADDRESS ((vaddr_t)0)
#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)(USRSTACK))
#endif
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