projects / deliverable / linux.git / blame
| 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 */ |