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asm
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hugetlb.h

hugetlb.h 1.8 KB
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  1. #ifndef _ASM_IA64_HUGETLB_H
    2. 

  2. #define _ASM_IA64_HUGETLB_H
    3. 

  3. 

  4. #include <asm/page.h>
    5. 

  5. #include <asm-generic/hugetlb.h>
    6. 

  6. 

  7. 

  8. void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
    9. 

  9. 			    unsigned long end, unsigned long floor,
    10. 

  10. 			    unsigned long ceiling);
    11. 

  11. 

  12. int prepare_hugepage_range(struct file *file,
    13. 

  13. 			unsigned long addr, unsigned long len);
    14. 

  14. 

  15. static inline int is_hugepage_only_range(struct mm_struct *mm,
    16. 

  16. 					 unsigned long addr,
    17. 

  17. 					 unsigned long len)
    18. 

  18. {
    19. 

  19. 	return (REGION_NUMBER(addr) == RGN_HPAGE ||
    20. 

  20. 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
    21. 

  21. }
    22. 

  22. 

  23. static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
    24. 

  24. {
    25. 

  25. }
    26. 

  26. 

  27. static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
    28. 

  28. 				   pte_t *ptep, pte_t pte)
    29. 

  29. {
    30. 

  30. 	set_pte_at(mm, addr, ptep, pte);
    31. 

  31. }
    32. 

  32. 

  33. static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
    34. 

  34. 					    unsigned long addr, pte_t *ptep)
    35. 

  35. {
    36. 

  36. 	return ptep_get_and_clear(mm, addr, ptep);
    37. 

  37. }
    38. 

  38. 

  39. static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
    40. 

  40. 					 unsigned long addr, pte_t *ptep)
    41. 

  41. {
    42. 

  42. }
    43. 

  43. 

  44. static inline int huge_pte_none(pte_t pte)
    45. 

  45. {
    46. 

  46. 	return pte_none(pte);
    47. 

  47. }
    48. 

  48. 

  49. static inline pte_t huge_pte_wrprotect(pte_t pte)
    50. 

  50. {
    51. 

  51. 	return pte_wrprotect(pte);
    52. 

  52. }
    53. 

  53. 

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

  55. 					   unsigned long addr, pte_t *ptep)
    56. 

  56. {
    57. 

  57. 	ptep_set_wrprotect(mm, addr, ptep);
    58. 

  58. }
    59. 

  59. 

  60. static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
    61. 

  61. 					     unsigned long addr, pte_t *ptep,
    62. 

  62. 					     pte_t pte, int dirty)
    63. 

  63. {
    64. 

  64. 	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
    65. 

  65. }
    66. 

  66. 

  67. static inline pte_t huge_ptep_get(pte_t *ptep)
    68. 

  68. {
    69. 

  69. 	return *ptep;
    70. 

  70. }
    71. 

  71. 

  72. static inline int arch_prepare_hugepage(struct page *page)
    73. 

  73. {
    74. 

  74. 	return 0;
    75. 

  75. }
    76. 

  76. 

  77. static inline void arch_release_hugepage(struct page *page)
    78. 

  78. {
    79. 

  79. }
    80. 

  80. 

  81. static inline void arch_clear_hugepage_flags(struct page *page)
    82. 

  82. {
    83. 

  83. }
    84. 

  84. 

  85. #endif /* _ASM_IA64_HUGETLB_H */
    86.