linux/arch/arc/include/asm/tlb.h
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   1/*
   2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License version 2 as
   6 * published by the Free Software Foundation.
   7 */
   8
   9#ifndef _ASM_ARC_TLB_H
  10#define _ASM_ARC_TLB_H
  11
  12#define tlb_flush(tlb)                          \
  13do {                                            \
  14        if (tlb->fullmm)                        \
  15                flush_tlb_mm((tlb)->mm);        \
  16} while (0)
  17
  18/*
  19 * This pair is called at time of munmap/exit to flush cache and TLB entries
  20 * for mappings being torn down.
  21 * 1) cache-flush part -implemented via tlb_start_vma( ) for VIPT aliasing D$
  22 * 2) tlb-flush part - implemted via tlb_end_vma( ) flushes the TLB range
  23 *
  24 * Note, read http://lkml.org/lkml/2004/1/15/6
  25 */
  26#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING
  27#define tlb_start_vma(tlb, vma)
  28#else
  29#define tlb_start_vma(tlb, vma)                                         \
  30do {                                                                    \
  31        if (!tlb->fullmm)                                               \
  32                flush_cache_range(vma, vma->vm_start, vma->vm_end);     \
  33} while(0)
  34#endif
  35
  36#define tlb_end_vma(tlb, vma)                                           \
  37do {                                                                    \
  38        if (!tlb->fullmm)                                               \
  39                flush_tlb_range(vma, vma->vm_start, vma->vm_end);       \
  40} while (0)
  41
  42#define __tlb_remove_tlb_entry(tlb, ptep, address)
  43
  44#include <linux/pagemap.h>
  45#include <asm-generic/tlb.h>
  46
  47#endif /* _ASM_ARC_TLB_H */
  48