]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef _ALPHA_PGALLOC_H |
2 | #define _ALPHA_PGALLOC_H | |
3 | ||
4 | #include <linux/config.h> | |
5 | #include <linux/mm.h> | |
6 | #include <linux/mmzone.h> | |
7 | ||
8 | /* | |
9 | * Allocate and free page tables. The xxx_kernel() versions are | |
10 | * used to allocate a kernel page table - this turns on ASN bits | |
11 | * if any. | |
12 | */ | |
13 | ||
14 | static inline void | |
15 | pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte) | |
16 | { | |
17 | pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET)); | |
18 | } | |
19 | ||
20 | static inline void | |
21 | pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) | |
22 | { | |
23 | pmd_set(pmd, pte); | |
24 | } | |
25 | ||
26 | static inline void | |
27 | pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) | |
28 | { | |
29 | pgd_set(pgd, pmd); | |
30 | } | |
31 | ||
32 | extern pgd_t *pgd_alloc(struct mm_struct *mm); | |
33 | ||
34 | static inline void | |
35 | pgd_free(pgd_t *pgd) | |
36 | { | |
37 | free_page((unsigned long)pgd); | |
38 | } | |
39 | ||
40 | static inline pmd_t * | |
41 | pmd_alloc_one(struct mm_struct *mm, unsigned long address) | |
42 | { | |
43 | pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); | |
44 | return ret; | |
45 | } | |
46 | ||
47 | static inline void | |
48 | pmd_free(pmd_t *pmd) | |
49 | { | |
50 | free_page((unsigned long)pmd); | |
51 | } | |
52 | ||
53 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); | |
54 | ||
55 | static inline void | |
56 | pte_free_kernel(pte_t *pte) | |
57 | { | |
58 | free_page((unsigned long)pte); | |
59 | } | |
60 | ||
61 | static inline struct page * | |
62 | pte_alloc_one(struct mm_struct *mm, unsigned long addr) | |
63 | { | |
64 | pte_t *pte = pte_alloc_one_kernel(mm, addr); | |
65 | if (pte) | |
66 | return virt_to_page(pte); | |
67 | return NULL; | |
68 | } | |
69 | ||
70 | static inline void | |
71 | pte_free(struct page *page) | |
72 | { | |
73 | __free_page(page); | |
74 | } | |
75 | ||
76 | #define check_pgt_cache() do { } while (0) | |
77 | ||
78 | #endif /* _ALPHA_PGALLOC_H */ |