96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/* $NetBSD: vmparam.h,v 1.28 2012/02/18 16:29:37 christos Exp $ */
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/*
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* Copyright (c) 1988 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _EVBARM_VMPARAM_H_
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#define _EVBARM_VMPARAM_H_
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#if defined(_KERNEL) || defined(_KMEMUSER) || defined(__minix)
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#include <arm/arm32/vmparam.h>
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/*
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* Address space constants
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*/
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/*
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* The line between user space and kernel space
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* Mappings >= KERNEL_BASE are constant across all processes
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*/
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#ifdef KERNEL_BASE_EXT
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#define KERNEL_BASE KERNEL_BASE_EXT
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#else
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#define KERNEL_BASE 0x80000000
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#endif
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/*
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* Override the default pager_map size, there's not enough KVA.
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*/
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#define PAGER_MAP_DEFAULT_SIZE (4 * 1024 * 1024)
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/*
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* Size of User Raw I/O map
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*/
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#define USRIOSIZE 300
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/* virtual sizes (bytes) for various kernel submaps */
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#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)
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/*
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* max number of non-contig chunks of physical RAM you can have
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*/
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#define VM_PHYSSEG_MAX 32
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/*
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* when converting a physical address to a vm_page structure, we
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* want to use a binary search on the chunks of physical memory
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* to find our RAM
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*/
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#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
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/*
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* we support 2 free lists:
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*
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* - DEFAULT for all systems
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* - ISADMA for the ISA DMA range on Sharks only
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*/
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#define VM_NFREELIST 2
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#define VM_FREELIST_DEFAULT 0
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#define VM_FREELIST_ISADMA 1
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#endif /* _KERNEL || _KMEMUSER */
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#endif /* _EVBARM_VMPARAM_H_ */
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