target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_tlbflush.h

   1 /*
   2  * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved.
   3  */
   4 #ifndef M68K_CF_TLBFLUSH_H
   5 #define M68K_CF_TLBFLUSH_H
   6
   7 #include <asm/coldfire.h>
   8
   9 /* Flush all userspace mappings.  */
  10 static inline void flush_tlb_all(void)
  11 {
  12         preempt_disable();
  13         *MMUOR = MMUOR_CNL;
  14         preempt_enable();
  15 }
  16
  17 /* Clear user TLB entries within the context named in mm */
  18 static inline void flush_tlb_mm(struct mm_struct *mm)
  19 {
  20         preempt_disable();
  21         *MMUOR = MMUOR_CNL;
  22         preempt_enable();
  23 }
  24
  25 /* Flush a single TLB page.  */
  26 static inline void flush_tlb_page(struct vm_area_struct *vma,
  27                                    unsigned long addr)
  28 {
  29         preempt_disable();
  30         *MMUOR = MMUOR_CNL;
  31         preempt_enable();
  32 }
  33 /* Flush a range of pages from TLB. */
  34
  35 static inline void flush_tlb_range(struct mm_struct *mm,
  36                       unsigned long start, unsigned long end)
  37 {
  38         preempt_disable();
  39         *MMUOR = MMUOR_CNL;
  40         preempt_enable();
  41 }
  42
  43 /* Flush kernel page from TLB. */
  44 static inline void flush_tlb_kernel_page(void *addr)
  45 {
  46         preempt_disable();
  47         *MMUOR = MMUOR_CNL;
  48         preempt_enable();
  49 }
  50
  51 static inline void flush_tlb_kernel_range(unsigned long start,
  52         unsigned long end)
  53 {
  54         flush_tlb_all();
  55 }
  56
  57 extern inline void flush_tlb_pgtables(struct mm_struct *mm,
  58                                       unsigned long start, unsigned long end)
  59 {
  60 }
  61
  62 #endif /* M68K_CF_TLBFLUSH_H */