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/* $NetBSD: pte.h,v 1.1 1996/10/13 09:28:56 jonathan Exp $ */
/*
* Copyright 1996 The Board of Trustees of The Leland Stanford
* Junior University. All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. Stanford University
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef __MIPS_PTE_H__
#define __MIPS_PTE_H__
/* XXX hack to make libkvm.old happy - MIPS1 is only defined if we are
building a kernel - but not for libkvm.old - so we define MIPS1
here - which is no problem at the moment - because the pmax port
at the moment only supports MIPS1 cpu based machines
*/
#if !defined(MIPS1) && !defined(MIPS3)
#define MIPS1
#endif
#if defined(MIPS1) && defined(MIPS3)
#error Cannot yet support both "MIPS1" (r2000 family) and "MIPS3" (r4000 family) in the same kernel.
#endif
#ifdef MIPS1
#include <machine/mips1_pte.h>
#endif
#ifdef MIPS3
#include <machine/mips3_pte.h>
#endif
#if defined(_KERNEL) && !defined(_LOCORE)
/*
* Kernel virtual address to page table entry and visa versa.
*/
#define kvtopte(va) \
(Sysmap + (((vm_offset_t)(va) - VM_MIN_KERNEL_ADDRESS) >> PGSHIFT))
#define ptetokv(pte) \
((((pt_entry_t *)(pte) - Sysmap) << PGSHIFT) + VM_MIN_KERNEL_ADDRESS)
extern pt_entry_t *Sysmap; /* kernel pte table */
extern u_int Sysmapsize; /* number of pte's in Sysmap */
#endif /* defined(_KERNEL) && !defined(_LOCORE) */
#endif /* __MIPS_PTE_H__ */
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