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112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/* $NetBSD: vmparam.h,v 1.7 2012/10/02 23:51:39 christos Exp $ */
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/*-
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* Copyright (c) 2010, 2011 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Raytheon BBN Technologies Corp and Defense Advanced Research Projects
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* Agency and which was developed by Matt Thomas of 3am Software Foundry.
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*
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* This material is based upon work supported by the Defense Advanced Research
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* Projects Agency and Space and Naval Warfare Systems Center, Pacific, under
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* Contract No. N66001-09-C-2073.
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* Approved for Public Release, Distribution Unlimited
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _POWERPC_BOOKE_VMPARAM_H_
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#define _POWERPC_BOOKE_VMPARAM_H_
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/*
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* Most of the definitions in this can be overriden by a machine-specific
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* vmparam.h if required. Otherwise a port can just include this file
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* get the right thing to happen.
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*/
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/*
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* BookE processors have 4K pages. Override the PAGE_* definitions to be
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* compile-time constants.
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*/
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (1 << PAGE_SHIFT)
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#define PAGE_MASK (PAGE_SIZE - 1)
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#ifndef USRSTACK
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#define USRSTACK VM_MAXUSER_ADDRESS
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#endif
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#ifndef MAXTSIZ
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#define MAXTSIZ (2*256*1024*1024) /* maximum text size */
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#endif
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#ifndef MAXDSIZ
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#define MAXDSIZ (13*256*1024*1024U) /* maximum data size */
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#endif
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#ifndef MAXSSIZ
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#define MAXSSIZ (1*256*1024*1024-PAGE_SIZE) /* maximum stack size */
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#endif
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#ifndef DFLDSIZ
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#define DFLDSIZ (256*1024*1024) /* default data size */
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#endif
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#ifndef DFLSSIZ
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#define DFLSSIZ (2*1024*1024) /* default stack size */
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#endif
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/*
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* Default number of pages in the user raw I/O map.
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*/
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#ifndef USRIOSIZE
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#define USRIOSIZE 1024
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#endif
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/*
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* The number of seconds for a process to be blocked before being
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* considered very swappable.
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*/
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#ifndef MAXSLP
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#define MAXSLP 20
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#endif
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/*
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* Some system constants
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*/
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#define VM_MIN_ADDRESS ((vaddr_t) 0)
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#define VM_MAXUSER_ADDRESS ((vaddr_t) /* -32768 */ 0xffff8000)
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#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS
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#define VM_MIN_KERNEL_ADDRESS ((vaddr_t) 0xe4000000)
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#define VM_MAX_KERNEL_ADDRESS ((vaddr_t) 0xfefff000)
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#define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST
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#ifndef VM_PHYS_SIZE
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#define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE)
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#endif
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#include <uvm/pmap/vmpagemd.h>
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#endif /* _POWERPC_BOOKE_VMPARAM_H_ */
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