arch/arc/include/asm/tlb.h

   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)                          \
  13 do {                                            \
  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)                                         \
  30 do {                                                                    \
  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)                                           \
  37 do {                                                                    \
  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 */