LXR linux/arch/powerpc/include/asm/tlb.h

   1/*
   2 *      TLB shootdown specifics for powerpc
   3 *
   4 * Copyright (C) 2002 Anton Blanchard, IBM Corp.
   5 * Copyright (C) 2002 Paul Mackerras, IBM Corp.
   6 *
   7 * This program is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License
   9 * as published by the Free Software Foundation; either version
  10 * 2 of the License, or (at your option) any later version.
  11 */
  12#ifndef _ASM_POWERPC_TLB_H
  13#define _ASM_POWERPC_TLB_H
  14#ifdef __KERNEL__
  15
  16#ifndef __powerpc64__
  17#include <asm/pgtable.h>
  18#endif
  19#include <asm/pgalloc.h>
  20#include <asm/tlbflush.h>
  21#ifndef __powerpc64__
  22#include <asm/page.h>
  23#include <asm/mmu.h>
  24#endif
  25
  26#include <linux/pagemap.h>
  27
  28#define tlb_start_vma(tlb, vma) do { } while (0)
  29#define tlb_end_vma(tlb, vma)   do { } while (0)
  30
  31extern void tlb_flush(struct mmu_gather *tlb);
  32
  33/* Get the generic bits... */
  34#include <asm-generic/tlb.h>
  35
  36extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
  37                             unsigned long address);
  38
  39static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
  40                                          unsigned long address)
  41{
  42#ifdef CONFIG_PPC_STD_MMU_32
  43        if (pte_val(*ptep) & _PAGE_HASHPTE)
  44                flush_hash_entry(tlb->mm, ptep, address);
  45#endif
  46}
  47
  48#endif /* __KERNEL__ */
  49#endif /* __ASM_POWERPC_TLB_H */
  50