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 | ||
10 | ||
11 | static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) | |
12 | { | |
13 | pte_t *pte; | |
14 | ||
15 | pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); | |
16 | if (pte) { | |
17 | __flush_page_to_ram(pte); | |
18 | flush_tlb_kernel_page(pte); | |
19 | nocache_page(pte); | |
20 | } | |
21 | ||
22 | return pte; | |
23 | } | |
24 | ||
25 | static inline void pte_free_kernel(pte_t *pte) | |
26 | { | |
27 | cache_page(pte); | |
28 | free_page((unsigned long) pte); | |
29 | } | |
30 | ||
31 | static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) | |
32 | { | |
33 | struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); | |
34 | pte_t *pte; | |
35 | ||
36 | if(!page) | |
37 | return NULL; | |
38 | ||
39 | pte = kmap(page); | |
40 | if (pte) { | |
41 | __flush_page_to_ram(pte); | |
42 | flush_tlb_kernel_page(pte); | |
43 | nocache_page(pte); | |
44 | } | |
45 | kunmap(pte); | |
46 | ||
47 | return page; | |
48 | } | |
49 | ||
50 | static inline void pte_free(struct page *page) | |
51 | { | |
52 | cache_page(kmap(page)); | |
53 | kunmap(page); | |
54 | __free_page(page); | |
55 | } | |
56 | ||
57 | static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *page) | |
58 | { | |
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 | ||
70 | static inline int pmd_free(pmd_t *pmd) | |
71 | { | |
72 | return free_pointer_table(pmd); | |
73 | } | |
74 | ||
75 | static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) | |
76 | { | |
77 | return free_pointer_table(pmd); | |
78 | } | |
79 | ||
80 | ||
81 | static inline void pgd_free(pgd_t *pgd) | |
82 | { | |
83 | pmd_free((pmd_t *)pgd); | |
84 | } | |
85 | ||
86 | static inline pgd_t *pgd_alloc(struct mm_struct *mm) | |
87 | { | |
88 | return (pgd_t *)get_pointer_table(); | |
89 | } | |
90 | ||
91 | ||
92 | static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) | |
93 | { | |
94 | pmd_set(pmd, pte); | |
95 | } | |
96 | ||
97 | static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page) | |
98 | { | |
99 | pmd_set(pmd, page_address(page)); | |
100 | } | |
101 | ||
102 | static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) | |
103 | { | |
104 | pgd_set(pgd, pmd); | |
105 | } | |
106 | ||
107 | #endif /* _MOTOROLA_PGALLOC_H */ |