projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _MOTOROLA_PGALLOC_H |
| 2 | #define _MOTOROLA_PGALLOC_H | |
| 3 | ||
| 4 | #include <asm/tlb.h> | |
| 5 | #include <asm/tlbflush.h> | |
| 6 | ||
| 7 | extern pmd_t *get_pointer_table(void); | |
| 8 | extern int free_pointer_table(pmd_t *); | |
| 9 | ||
| 1da177e4 LT |
10 | static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) |
| 11 | { | |
| 12 | pte_t *pte; | |
| 13 | ||
| 14 | pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); | |
| 15 | if (pte) { | |
| 16 | __flush_page_to_ram(pte); | |
| 17 | flush_tlb_kernel_page(pte); | |
| 18 | nocache_page(pte); | |
| 19 | } | |
| 20 | ||
| 21 | return pte; | |
| 22 | } | |
| 23 | ||
| 5e541973 | 24 | static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) |
| 1da177e4 LT |
25 | { |
| 26 | cache_page(pte); | |
| 27 | free_page((unsigned long) pte); | |
| 28 | } | |
| 29 | ||
| 2f569afd | 30 | static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) |
| 1da177e4 LT |
31 | { |
| 32 | struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); | |
| 33 | pte_t *pte; | |
| 34 | ||
| 35 | if(!page) | |
| 36 | return NULL; | |
| 37 | ||
| 38 | pte = kmap(page); | |
| 39 | if (pte) { | |
| 40 | __flush_page_to_ram(pte); | |
| 41 | flush_tlb_kernel_page(pte); | |
| 42 | nocache_page(pte); | |
| 43 | } | |
| 44 | kunmap(pte); | |
| 2f569afd | 45 | pgtable_page_ctor(page); |
| 1da177e4 LT |
46 | return page; |
| 47 | } | |
| 48 | ||
| 2f569afd | 49 | static inline void pte_free(struct mm_struct *mm, pgtable_t page) |
| 1da177e4 | 50 | { |
| 2f569afd | 51 | pgtable_page_dtor(page); |
| 1da177e4 LT |
52 | cache_page(kmap(page)); |
| 53 | kunmap(page); | |
| 54 | __free_page(page); | |
| 55 | } | |
| 56 | ||
| 2f569afd | 57 | static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page) |
| 1da177e4 | 58 | { |
| 2f569afd | 59 | pgtable_page_dtor(page); |
| 1da177e4 LT |
60 | cache_page(kmap(page)); |
| 61 | kunmap(page); | |
| 62 | __free_page(page); | |
| 63 | } | |
| 64 | ||
| 65 | ||
| 66 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) | |
| 67 | { | |
| 68 | return get_pointer_table(); | |
| 69 | } | |
| 70 | ||
| 5e541973 | 71 | static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd) |
| 1da177e4 LT |
72 | { |
| 73 | return free_pointer_table(pmd); | |
| 74 | } | |
| 75 | ||
| 76 | static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) | |
| 77 | { | |
| 78 | return free_pointer_table(pmd); | |
| 79 | } | |
| 80 | ||
| 81 | ||
| 5e541973 | 82 | static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) |
| 1da177e4 | 83 | { |
| 5e541973 | 84 | pmd_free(mm, (pmd_t *)pgd); |
| 1da177e4 LT |
85 | } |
| 86 | ||
| 87 | static inline pgd_t *pgd_alloc(struct mm_struct *mm) | |
| 88 | { | |
| 89 | return (pgd_t *)get_pointer_table(); | |
| 90 | } | |
| 91 | ||
| 92 | ||
| 93 | static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) | |
| 94 | { | |
| 95 | pmd_set(pmd, pte); | |
| 96 | } | |
| 97 | ||
| 2f569afd | 98 | static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page) |
| 1da177e4 LT |
99 | { |
| 100 | pmd_set(pmd, page_address(page)); | |
| 101 | } | |
| 2f569afd | 102 | #define pmd_pgtable(pmd) pmd_page(pmd) |
| 1da177e4 LT |
103 | |
| 104 | static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) | |
| 105 | { | |
| 106 | pgd_set(pgd, pmd); | |
| 107 | } | |
| 108 | ||
| 109 | #endif /* _MOTOROLA_PGALLOC_H */ |