Commit | Line | Data |
---|---|---|
f5e706ad SR |
1 | #ifndef _SPARC64_PGALLOC_H |
2 | #define _SPARC64_PGALLOC_H | |
3 | ||
4 | #include <linux/kernel.h> | |
5 | #include <linux/sched.h> | |
6 | #include <linux/mm.h> | |
7 | #include <linux/slab.h> | |
f5e706ad SR |
8 | |
9 | #include <asm/spitfire.h> | |
10 | #include <asm/cpudata.h> | |
11 | #include <asm/cacheflush.h> | |
12 | #include <asm/page.h> | |
13 | ||
14 | /* Page table allocation/freeing. */ | |
15 | ||
4dedbf8d DM |
16 | extern struct kmem_cache *pgtable_cache; |
17 | ||
ac55c768 DM |
18 | static inline void __pgd_populate(pgd_t *pgd, pud_t *pud) |
19 | { | |
20 | pgd_set(pgd, pud); | |
21 | } | |
22 | ||
23 | #define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, PUD) | |
24 | ||
f5e706ad SR |
25 | static inline pgd_t *pgd_alloc(struct mm_struct *mm) |
26 | { | |
4dedbf8d | 27 | return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); |
f5e706ad SR |
28 | } |
29 | ||
30 | static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) | |
31 | { | |
4dedbf8d | 32 | kmem_cache_free(pgtable_cache, pgd); |
f5e706ad SR |
33 | } |
34 | ||
ac55c768 DM |
35 | static inline void __pud_populate(pud_t *pud, pmd_t *pmd) |
36 | { | |
37 | pud_set(pud, pmd); | |
38 | } | |
39 | ||
40 | #define pud_populate(MM, PUD, PMD) __pud_populate(PUD, PMD) | |
41 | ||
42 | static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) | |
43 | { | |
45eeff26 | 44 | return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); |
ac55c768 DM |
45 | } |
46 | ||
47 | static inline void pud_free(struct mm_struct *mm, pud_t *pud) | |
48 | { | |
49 | kmem_cache_free(pgtable_cache, pud); | |
50 | } | |
f5e706ad SR |
51 | |
52 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) | |
53 | { | |
45eeff26 | 54 | return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); |
f5e706ad SR |
55 | } |
56 | ||
57 | static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) | |
58 | { | |
4dedbf8d | 59 | kmem_cache_free(pgtable_cache, pmd); |
f5e706ad SR |
60 | } |
61 | ||
f05a6865 SR |
62 | pte_t *pte_alloc_one_kernel(struct mm_struct *mm, |
63 | unsigned long address); | |
64 | pgtable_t pte_alloc_one(struct mm_struct *mm, | |
65 | unsigned long address); | |
66 | void pte_free_kernel(struct mm_struct *mm, pte_t *pte); | |
67 | void pte_free(struct mm_struct *mm, pgtable_t ptepage); | |
f5e706ad | 68 | |
9e695d2e DM |
69 | #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(MM, PMD, PTE) |
70 | #define pmd_populate(MM, PMD, PTE) pmd_set(MM, PMD, PTE) | |
c460bec7 | 71 | #define pmd_pgtable(PMD) ((pte_t *)__pmd_page(PMD)) |
f5e706ad | 72 | |
4dedbf8d | 73 | #define check_pgt_cache() do { } while (0) |
f5e706ad | 74 | |
f05a6865 | 75 | void pgtable_free(void *table, bool is_page); |
4a0100f7 DM |
76 | |
77 | #ifdef CONFIG_SMP | |
78 | ||
79 | struct mmu_gather; | |
f05a6865 | 80 | void tlb_remove_table(struct mmu_gather *, void *); |
4a0100f7 DM |
81 | |
82 | static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) | |
83 | { | |
84 | unsigned long pgf = (unsigned long)table; | |
85 | if (is_page) | |
86 | pgf |= 0x1UL; | |
87 | tlb_remove_table(tlb, (void *)pgf); | |
88 | } | |
89 | ||
90 | static inline void __tlb_remove_table(void *_table) | |
91 | { | |
92 | void *table = (void *)((unsigned long)_table & ~0x1UL); | |
93 | bool is_page = false; | |
94 | ||
95 | if ((unsigned long)_table & 0x1UL) | |
96 | is_page = true; | |
97 | pgtable_free(table, is_page); | |
98 | } | |
99 | #else /* CONFIG_SMP */ | |
100 | static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) | |
101 | { | |
102 | pgtable_free(table, is_page); | |
103 | } | |
104 | #endif /* !CONFIG_SMP */ | |
105 | ||
c460bec7 | 106 | static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte, |
4a0100f7 DM |
107 | unsigned long address) |
108 | { | |
c460bec7 | 109 | pgtable_free_tlb(tlb, pte, true); |
4a0100f7 DM |
110 | } |
111 | ||
112 | #define __pmd_free_tlb(tlb, pmd, addr) \ | |
113 | pgtable_free_tlb(tlb, pmd, false) | |
90f08e39 | 114 | |
ac55c768 DM |
115 | #define __pud_free_tlb(tlb, pud, addr) \ |
116 | pgtable_free_tlb(tlb, pud, false) | |
117 | ||
f5e706ad | 118 | #endif /* _SPARC64_PGALLOC_H */ |