58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
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/*
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* TLB shootdown specifics for PPC
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*
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* Copyright (C) 2002 Paul Mackerras, IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _PPC_TLB_H
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#define _PPC_TLB_H
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#include <linux/config.h>
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#include <asm/pgtable.h>
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#include <asm/pgalloc.h>
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#include <asm/tlbflush.h>
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#include <asm/page.h>
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#include <asm/mmu.h>
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#ifdef CONFIG_PPC_STD_MMU
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/* Classic PPC with hash-table based MMU... */
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struct mmu_gather;
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extern void tlb_flush(struct mmu_gather *tlb);
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/* Get the generic bits... */
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#include <asm-generic/tlb.h>
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/* Nothing needed here in fact... */
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#define tlb_start_vma(tlb, vma) do { } while (0)
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#define tlb_end_vma(tlb, vma) do { } while (0)
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extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
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unsigned long address);
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static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
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unsigned long address)
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{
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if (pte_val(*ptep) & _PAGE_HASHPTE)
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flush_hash_entry(tlb->mm, ptep, address);
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}
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#else
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/* Embedded PPC with software-loaded TLB, very simple... */
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#define tlb_start_vma(tlb, vma) do { } while (0)
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#define tlb_end_vma(tlb, vma) do { } while (0)
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#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
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#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
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/* Get the generic bits... */
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#include <asm-generic/tlb.h>
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#endif /* CONFIG_PPC_STD_MMU */
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#endif /* __PPC_TLB_H */
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