Enable top-down VM if USE_TOPDOWN_VM is defined.
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/* $NetBSD: vmparam.h,v 1.33 2003/08/07 16:28:29 agc Exp $ */
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/* $NetBSD: vmparam.h,v 1.34 2004/04/26 22:25:54 simonb Exp $ */
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/*
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/*
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* Copyright (c) 1992, 1993
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* Copyright (c) 1992, 1993
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@ -153,6 +153,18 @@
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#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xFFFFC000)
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#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xFFFFC000)
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#endif
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#endif
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/*
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* The address to which unspecified mapping requests default
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*/
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#ifdef _KERNEL_OPT
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#include "opt_uvm.h"
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#endif
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#define __HAVE_TOPDOWN_VM
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#ifdef USE_TOPDOWN_VM
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#define VM_DEFAULT_ADDRESS(da, sz) \
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trunc_page(USRSTACK - MAXSSIZ - (sz))
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#endif
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/* virtual sizes (bytes) for various kernel submaps */
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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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#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)
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