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); | |
dc71c7d5 AM |
39 | __flush_page_to_ram(pte); |
40 | flush_tlb_kernel_page(pte); | |
41 | nocache_page(pte); | |
42 | kunmap(page); | |
2f569afd | 43 | pgtable_page_ctor(page); |
1da177e4 LT |
44 | return page; |
45 | } | |
46 | ||
2f569afd | 47 | static inline void pte_free(struct mm_struct *mm, pgtable_t page) |
1da177e4 | 48 | { |
2f569afd | 49 | pgtable_page_dtor(page); |
1da177e4 LT |
50 | cache_page(kmap(page)); |
51 | kunmap(page); | |
52 | __free_page(page); | |
53 | } | |
54 | ||
9e1b32ca BH |
55 | static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page, |
56 | unsigned long address) | |
1da177e4 | 57 | { |
2f569afd | 58 | pgtable_page_dtor(page); |
1da177e4 LT |
59 | cache_page(kmap(page)); |
60 | kunmap(page); | |
61 | __free_page(page); | |
62 | } | |
63 | ||
64 | ||
65 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) | |
66 | { | |
67 | return get_pointer_table(); | |
68 | } | |
69 | ||
5e541973 | 70 | static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd) |
1da177e4 LT |
71 | { |
72 | return free_pointer_table(pmd); | |
73 | } | |
74 | ||
9e1b32ca BH |
75 | static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, |
76 | unsigned long address) | |
1da177e4 LT |
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 */ |