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1da177e4 LT |
1 | /* $Id: pgalloc.h,v 1.30 2001/12/21 04:56:17 davem Exp $ */ |
2 | #ifndef _SPARC64_PGALLOC_H | |
3 | #define _SPARC64_PGALLOC_H | |
4 | ||
1da177e4 LT |
5 | #include <linux/kernel.h> |
6 | #include <linux/sched.h> | |
7 | #include <linux/mm.h> | |
3c936465 | 8 | #include <linux/slab.h> |
3a2cba99 | 9 | #include <linux/quicklist.h> |
1da177e4 LT |
10 | |
11 | #include <asm/spitfire.h> | |
12 | #include <asm/cpudata.h> | |
13 | #include <asm/cacheflush.h> | |
6a9b490d | 14 | #include <asm/page.h> |
1da177e4 LT |
15 | |
16 | /* Page table allocation/freeing. */ | |
1da177e4 | 17 | |
3c936465 | 18 | static inline pgd_t *pgd_alloc(struct mm_struct *mm) |
1da177e4 | 19 | { |
3a2cba99 | 20 | return quicklist_alloc(0, GFP_KERNEL, NULL); |
1da177e4 LT |
21 | } |
22 | ||
5e541973 | 23 | static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) |
1da177e4 | 24 | { |
3a2cba99 | 25 | quicklist_free(0, NULL, pgd); |
1da177e4 LT |
26 | } |
27 | ||
1da177e4 LT |
28 | #define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD) |
29 | ||
3c936465 | 30 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) |
1da177e4 | 31 | { |
3a2cba99 | 32 | return quicklist_alloc(0, GFP_KERNEL, NULL); |
05e28f9d DM |
33 | } |
34 | ||
5e541973 | 35 | static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) |
05e28f9d | 36 | { |
3a2cba99 | 37 | quicklist_free(0, NULL, pmd); |
1da177e4 LT |
38 | } |
39 | ||
3c936465 DM |
40 | static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, |
41 | unsigned long address) | |
1da177e4 | 42 | { |
3a2cba99 | 43 | return quicklist_alloc(0, GFP_KERNEL, NULL); |
05e28f9d DM |
44 | } |
45 | ||
2f569afd MS |
46 | static inline pgtable_t pte_alloc_one(struct mm_struct *mm, |
47 | unsigned long address) | |
05e28f9d | 48 | { |
2f569afd MS |
49 | struct page *page; |
50 | void *pg; | |
51 | ||
52 | pg = quicklist_alloc(0, GFP_KERNEL, NULL); | |
53 | if (!pg) | |
54 | return NULL; | |
55 | page = virt_to_page(pg); | |
56 | pgtable_page_ctor(page); | |
57 | return page; | |
1da177e4 | 58 | } |
3c936465 | 59 | |
5e541973 | 60 | static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) |
1da177e4 | 61 | { |
3a2cba99 | 62 | quicklist_free(0, NULL, pte); |
1da177e4 LT |
63 | } |
64 | ||
2f569afd | 65 | static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) |
1da177e4 | 66 | { |
2f569afd | 67 | pgtable_page_dtor(ptepage); |
3a2cba99 | 68 | quicklist_free_page(0, NULL, ptepage); |
1da177e4 LT |
69 | } |
70 | ||
3c936465 DM |
71 | |
72 | #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE) | |
73 | #define pmd_populate(MM,PMD,PTE_PAGE) \ | |
74 | pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE)) | |
2f569afd | 75 | #define pmd_pgtable(pmd) pmd_page(pmd) |
3c936465 | 76 | |
3a2cba99 DM |
77 | static inline void check_pgt_cache(void) |
78 | { | |
79 | quicklist_trim(0, NULL, 25, 16); | |
80 | } | |
1da177e4 LT |
81 | |
82 | #endif /* _SPARC64_PGALLOC_H */ |