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kernel/linux-rt-4.4.41/arch/powerpc/include/asm/tlb.h 1.29 KB
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  /*
   *	TLB shootdown specifics for powerpc
   *
   * Copyright (C) 2002 Anton Blanchard, IBM Corp.
   * Copyright (C) 2002 Paul Mackerras, IBM Corp.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version
   * 2 of the License, or (at your option) any later version.
   */
  #ifndef _ASM_POWERPC_TLB_H
  #define _ASM_POWERPC_TLB_H
  #ifdef __KERNEL__
  
  #ifndef __powerpc64__
  #include <asm/pgtable.h>
  #endif
  #include <asm/pgalloc.h>
  #include <asm/tlbflush.h>
  #ifndef __powerpc64__
  #include <asm/page.h>
  #include <asm/mmu.h>
  #endif
  
  #include <linux/pagemap.h>
  
  #define tlb_start_vma(tlb, vma)	do { } while (0)
  #define tlb_end_vma(tlb, vma)	do { } while (0)
  #define __tlb_remove_tlb_entry	__tlb_remove_tlb_entry
  
  extern void tlb_flush(struct mmu_gather *tlb);
  
  /* Get the generic bits... */
  #include <asm-generic/tlb.h>
  
  extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
  			     unsigned long address);
  
  static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
  					  unsigned long address)
  {
  #ifdef CONFIG_PPC_STD_MMU_32
  	if (pte_val(*ptep) & _PAGE_HASHPTE)
  		flush_hash_entry(tlb->mm, ptep, address);
  #endif
  }
  
  #endif /* __KERNEL__ */
  #endif /* __ASM_POWERPC_TLB_H */