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 | ||
| f5e706ad SR |
18 | static inline pgd_t *pgd_alloc(struct mm_struct *mm) |
| 19 | { | |
| 4dedbf8d | 20 | return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); |
| f5e706ad SR |
21 | } |
| 22 | ||
| 23 | static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) | |
| 24 | { | |
| 4dedbf8d | 25 | kmem_cache_free(pgtable_cache, pgd); |
| f5e706ad SR |
26 | } |
| 27 | ||
| 28 | #define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD) | |
| 29 | ||
| 30 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) | |
| 31 | { | |
| 4dedbf8d DM |
32 | return kmem_cache_alloc(pgtable_cache, |
| 33 | GFP_KERNEL|__GFP_REPEAT); | |
| f5e706ad SR |
34 | } |
| 35 | ||
| 36 | static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) | |
| 37 | { | |
| 4dedbf8d | 38 | kmem_cache_free(pgtable_cache, pmd); |
| f5e706ad SR |
39 | } |
| 40 | ||
| c460bec7 DM |
41 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, |
| 42 | unsigned long address); | |
| 43 | extern pgtable_t pte_alloc_one(struct mm_struct *mm, | |
| 44 | unsigned long address); | |
| 45 | extern void pte_free_kernel(struct mm_struct *mm, pte_t *pte); | |
| 46 | extern void pte_free(struct mm_struct *mm, pgtable_t ptepage); | |
| f5e706ad | 47 | |
| f5e706ad | 48 | #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE) |
| c460bec7 DM |
49 | #define pmd_populate(MM, PMD, PTE) pmd_set(PMD, PTE) |
| 50 | #define pmd_pgtable(PMD) ((pte_t *)__pmd_page(PMD)) | |
| f5e706ad | 51 | |
| 4dedbf8d | 52 | #define check_pgt_cache() do { } while (0) |
| f5e706ad | 53 | |
| c460bec7 | 54 | extern void pgtable_free(void *table, bool is_page); |
| 4a0100f7 DM |
55 | |
| 56 | #ifdef CONFIG_SMP | |
| 57 | ||
| 58 | struct mmu_gather; | |
| 59 | extern void tlb_remove_table(struct mmu_gather *, void *); | |
| 60 | ||
| 61 | static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) | |
| 62 | { | |
| 63 | unsigned long pgf = (unsigned long)table; | |
| 64 | if (is_page) | |
| 65 | pgf |= 0x1UL; | |
| 66 | tlb_remove_table(tlb, (void *)pgf); | |
| 67 | } | |
| 68 | ||
| 69 | static inline void __tlb_remove_table(void *_table) | |
| 70 | { | |
| 71 | void *table = (void *)((unsigned long)_table & ~0x1UL); | |
| 72 | bool is_page = false; | |
| 73 | ||
| 74 | if ((unsigned long)_table & 0x1UL) | |
| 75 | is_page = true; | |
| 76 | pgtable_free(table, is_page); | |
| 77 | } | |
| 78 | #else /* CONFIG_SMP */ | |
| 79 | static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) | |
| 80 | { | |
| 81 | pgtable_free(table, is_page); | |
| 82 | } | |
| 83 | #endif /* !CONFIG_SMP */ | |
| 84 | ||
| c460bec7 | 85 | static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte, |
| 4a0100f7 DM |
86 | unsigned long address) |
| 87 | { | |
| c460bec7 | 88 | pgtable_free_tlb(tlb, pte, true); |
| 4a0100f7 DM |
89 | } |
| 90 | ||
| 91 | #define __pmd_free_tlb(tlb, pmd, addr) \ | |
| 92 | pgtable_free_tlb(tlb, pmd, false) | |
| 90f08e39 | 93 | |
| f5e706ad | 94 | #endif /* _SPARC64_PGALLOC_H */ |