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/* $NetBSD: vmparam.h,v 1.26 2003/08/07 16:27:47 agc Exp $ */
/*-
* Copyright (c) 1988 The Regents of the University of California.
* All rights reserved.
*
* 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. 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_VMPARAM_H_
#define _MACHINE_VMPARAM_H_
/*#include <arm/arm32/vmparam.h>
*/
/*
* Address space constants
*/
/*
* The line between user space and kernel space
* Mappings >= KERNEL_BASE are constant across all processes
*/
#define KERNBASE 0xc0000000
/*
* Override the default pager_map size, there's not enough KVA.
*/
/*
* max number of non-contig chunks of physical RAM you can have
*/
#define VM_PHYSSEG_MAX 32
/*
* when converting a physical address to a vm_page structure, we
* want to use a binary search on the chunks of physical memory
* to find our RAM
*/
#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
/*
* this indicates that we can't add RAM to the VM system after the
* vm system is init'd.
*/
#define VM_PHYSSEG_NOADD
/*
* we support 2 free lists:
*
* - DEFAULT for all systems
* - ISADMA for the ISA DMA range on Sharks only
*/
#define VM_NFREELIST 2
#define VM_FREELIST_DEFAULT 0
#define VM_FREELIST_ISADMA 1
#define UPT_MAX_ADDRESS VADDR(UPTPTDI + 3, 0)
#define UPT_MIN_ADDRESS VADDR(UPTPTDI, 0)
#define VM_MIN_ADDRESS (0x00001000)
#ifdef ARM_USE_SMALL_ALLOC
#ifndef ARM_KERN_DIRECTMAP
#define ARM_KERN_DIRECTMAP 512 * 1024 * 1024 /* 512 MB */
#endif
#define VM_MAXUSER_ADDRESS KERNBASE - ARM_KERN_DIRECTMAP
#else /* ARM_USE_SMALL_ALLOC */
#define VM_MAXUSER_ADDRESS KERNBASE
#endif /* ARM_USE_SMALL_ALLOC */
#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS
#define USRSTACK VM_MAXUSER_ADDRESS
/* initial pagein size of beginning of executable file */
#ifndef VM_INITIAL_PAGEIN
#define VM_INITIAL_PAGEIN 16
#endif
#ifndef VM_MIN_KERNEL_ADDRESS
#define VM_MIN_KERNEL_ADDRESS KERNBASE
#endif
#define VM_MAX_KERNEL_ADDRESS 0xffffffff
/*
* Virtual size (bytes) for various kernel submaps.
*/
#ifndef VM_KMEM_SIZE
#define VM_KMEM_SIZE (12*1024*1024)
#endif
#define MAXTSIZ (16*1024*1024)
#define DFLDSIZ (128*1024*1024)
#define MAXDSIZ (512*1024*1024)
#define DFLSSIZ (2*1024*1024)
#define MAXSSIZ (8*1024*1024)
#define SGROWSIZ (128*1024)
#define MAXSLP 20
#define VM_PROT_READ_IS_EXEC
#ifdef ARM_USE_SMALL_ALLOC
#define UMA_MD_SMALL_ALLOC
#endif /* ARM_USE_SMALL_ALLOC */
#endif /* _MACHINE_VMPARAM_H_ */
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