freebsd-skq/sys/powerpc/aim/mmu_oea64.h

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/*-
* Copyright (C) 2010 Nathan Whitehorn
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 TOOLS GMBH 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 _POWERPC_AIM_MMU_OEA64_H
#define _POWERPC_AIM_MMU_OEA64_H
#include <machine/mmuvar.h>
extern mmu_def_t oea64_mmu;
/*
* Helper routines
*/
/* Allocate physical memory for use in moea64_bootstrap. */
vm_offset_t moea64_bootstrap_alloc(vm_size_t, u_int);
/* Set an LPTE structure to match the contents of a PVO */
void moea64_pte_from_pvo(const struct pvo_entry *pvo, struct lpte *lpte);
/*
* Flags
*/
#define MOEA64_PTE_PROT_UPDATE 1
#define MOEA64_PTE_INVALIDATE 2
/*
* Bootstrap subroutines
*
* An MMU_BOOTSTRAP() implementation looks like this:
* moea64_early_bootstrap();
* Allocate Page Table
* moea64_mid_bootstrap();
* Add mappings for MMU resources
* moea64_late_bootstrap();
*/
void moea64_early_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
vm_offset_t kernelend);
void moea64_mid_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
vm_offset_t kernelend);
void moea64_late_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
vm_offset_t kernelend);
/*
* Statistics
*/
extern u_int moea64_pte_valid;
extern u_int moea64_pte_overflow;
/*
* State variables
*/
extern int moea64_large_page_shift;
extern uint64_t moea64_large_page_size;
extern u_int moea64_pteg_count;
extern u_int moea64_pteg_mask;
#endif /* _POWERPC_AIM_MMU_OEA64_H */