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linux-libre
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arch
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microblaze
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include
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asm
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tlbflush.h

tlbflush.h 2.0 KB
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  1. /*
    2. 

  2.  * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
    3. 

  3.  * Copyright (C) 2008-2009 PetaLogix
    4. 

  4.  * Copyright (C) 2006 Atmark Techno, Inc.
    5. 

  5.  *
    6. 

  6.  * This file is subject to the terms and conditions of the GNU General Public
    7. 

  7.  * License. See the file "COPYING" in the main directory of this archive
    8. 

  8.  * for more details.
    9. 

  9.  */
    10. 

  10. 

  11. #ifndef _ASM_MICROBLAZE_TLBFLUSH_H
    12. 

  12. #define _ASM_MICROBLAZE_TLBFLUSH_H
    13. 

  13. 

  14. #ifdef CONFIG_MMU
    15. 

  15. 

  16. #include <linux/sched.h>
    17. 

  17. #include <linux/threads.h>
    18. 

  18. #include <asm/processor.h>	/* For TASK_SIZE */
    19. 

  19. #include <asm/mmu.h>
    20. 

  20. #include <asm/page.h>
    21. 

  21. #include <asm/pgalloc.h>
    22. 

  22. 

  23. extern void _tlbie(unsigned long address);
    24. 

  24. extern void _tlbia(void);
    25. 

  25. 

  26. #define __tlbia()	{ preempt_disable(); _tlbia(); preempt_enable(); }
    27. 

  27. #define __tlbie(x)	{ _tlbie(x); }
    28. 

  28. 

  29. static inline void local_flush_tlb_all(void)
    30. 

  30. 	{ __tlbia(); }
    31. 

  31. static inline void local_flush_tlb_mm(struct mm_struct *mm)
    32. 

  32. 	{ __tlbia(); }
    33. 

  33. static inline void local_flush_tlb_page(struct vm_area_struct *vma,
    34. 

  34. 				unsigned long vmaddr)
    35. 

  35. 	{ __tlbie(vmaddr); }
    36. 

  36. static inline void local_flush_tlb_range(struct vm_area_struct *vma,
    37. 

  37. 		unsigned long start, unsigned long end)
    38. 

  38. 	{ __tlbia(); }
    39. 

  39. 

  40. #define flush_tlb_kernel_range(start, end)	do { } while (0)
    41. 

  41. 

  42. #define update_mmu_cache(vma, addr, ptep)	do { } while (0)
    43. 

  43. 

  44. #define flush_tlb_all local_flush_tlb_all
    45. 

  45. #define flush_tlb_mm local_flush_tlb_mm
    46. 

  46. #define flush_tlb_page local_flush_tlb_page
    47. 

  47. #define flush_tlb_range local_flush_tlb_range
    48. 

  48. 

  49. /*
    50. 

  50.  * This is called in munmap when we have freed up some page-table
    51. 

  51.  * pages.  We don't need to do anything here, there's nothing special
    52. 

  52.  * about our page-table pages.  -- paulus
    53. 

  53.  */
    54. 

  54. static inline void flush_tlb_pgtables(struct mm_struct *mm,
    55. 

  55. 	unsigned long start, unsigned long end) { }
    56. 

  56. 

  57. #else /* CONFIG_MMU */
    58. 

  58. 

  59. #define flush_tlb()				BUG()
    60. 

  60. #define flush_tlb_all()				BUG()
    61. 

  61. #define flush_tlb_mm(mm)			BUG()
    62. 

  62. #define flush_tlb_page(vma, addr)		BUG()
    63. 

  63. #define flush_tlb_range(mm, start, end)		BUG()
    64. 

  64. #define flush_tlb_pgtables(mm, start, end)	BUG()
    65. 

  65. #define flush_tlb_kernel_range(start, end)	BUG()
    66. 

  66. 

  67. #endif /* CONFIG_MMU */
    68. 

  68. 

  69. #endif /* _ASM_MICROBLAZE_TLBFLUSH_H */
    70. 

  70.