0ecc478b74
Based on POWER9BSD implementation, with all POWER9 specific code removed and addition of new methods in PPC64 MMU interface, to isolate platform specific code. Currently, the new methods are implemented on pseries and PowerNV (D21643). Reviewed by: jhibbits Differential Revision: https://reviews.freebsd.org/D21551
104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2010 Nathan Whitehorn
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _POWERPC_AIM_MMU_OEA64_H
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#define _POWERPC_AIM_MMU_OEA64_H
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#include "opt_pmap.h"
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#include <machine/mmuvar.h>
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struct dump_context {
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u_long ptex;
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u_long ptex_end;
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size_t blksz;
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};
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extern mmu_def_t oea64_mmu;
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/*
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* Helper routines
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*/
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/* Allocate physical memory for use in moea64_bootstrap. */
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vm_offset_t moea64_bootstrap_alloc(vm_size_t size, vm_size_t align);
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/* Set an LPTE structure to match the contents of a PVO */
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void moea64_pte_from_pvo(const struct pvo_entry *pvo, struct lpte *lpte);
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/*
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* Flags
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*/
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#define MOEA64_PTE_PROT_UPDATE 1
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#define MOEA64_PTE_INVALIDATE 2
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/*
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* Bootstrap subroutines
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*
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* An MMU_BOOTSTRAP() implementation looks like this:
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* moea64_early_bootstrap();
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* Allocate Page Table
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* moea64_mid_bootstrap();
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* Add mappings for MMU resources
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* moea64_late_bootstrap();
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*/
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void moea64_early_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
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vm_offset_t kernelend);
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void moea64_mid_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
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vm_offset_t kernelend);
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void moea64_late_bootstrap(mmu_t mmup, vm_offset_t kernelstart,
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vm_offset_t kernelend);
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/*
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* Statistics
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*/
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#ifdef MOEA64_STATS
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extern u_int moea64_pte_valid;
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extern u_int moea64_pte_overflow;
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#define STAT_MOEA64(x) x
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#else
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#define STAT_MOEA64(x) ((void)0)
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#endif
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/*
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* State variables
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*/
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extern int moea64_large_page_shift;
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extern uint64_t moea64_large_page_size;
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extern uint64_t moea64_large_page_mask;
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extern u_long moea64_pteg_count;
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extern u_long moea64_pteg_mask;
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extern int n_slbs;
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#endif /* _POWERPC_AIM_MMU_OEA64_H */
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