projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) | |
| 3 | * Copyright 2003 PathScale, Inc. | |
| 4 | * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h | |
| 5 | * Licensed under the GPL | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef __UM_PGALLOC_H | |
| 9 | #define __UM_PGALLOC_H | |
| 10 | ||
| 1da177e4 LT |
11 | #include "linux/mm.h" |
| 12 | #include "asm/fixmap.h" | |
| 13 | ||
| 14 | #define pmd_populate_kernel(mm, pmd, pte) \ | |
| 15 | set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte))) | |
| 16 | ||
| 17 | #define pmd_populate(mm, pmd, pte) \ | |
| 18 | set_pmd(pmd, __pmd(_PAGE_TABLE + \ | |
| 19 | ((unsigned long long)page_to_pfn(pte) << \ | |
| 20 | (unsigned long long) PAGE_SHIFT))) | |
| 2f569afd | 21 | #define pmd_pgtable(pmd) pmd_page(pmd) |
| 1da177e4 LT |
22 | |
| 23 | /* | |
| 24 | * Allocate and free page tables. | |
| 25 | */ | |
| 26 | extern pgd_t *pgd_alloc(struct mm_struct *); | |
| 5e541973 | 27 | extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); |
| 1da177e4 LT |
28 | |
| 29 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); | |
| 2f569afd | 30 | extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long); |
| 1da177e4 | 31 | |
| 5e541973 | 32 | static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) |
| 1da177e4 LT |
33 | { |
| 34 | free_page((unsigned long) pte); | |
| 35 | } | |
| 36 | ||
| 2f569afd | 37 | static inline void pte_free(struct mm_struct *mm, pgtable_t pte) |
| 1da177e4 | 38 | { |
| 2f569afd | 39 | pgtable_page_dtor(pte); |
| 1da177e4 LT |
40 | __free_page(pte); |
| 41 | } | |
| 42 | ||
| 9e1b32ca | 43 | #define __pte_free_tlb(tlb,pte, address) \ |
| 2f569afd MS |
44 | do { \ |
| 45 | pgtable_page_dtor(pte); \ | |
| 46 | tlb_remove_page((tlb),(pte)); \ | |
| 47 | } while (0) | |
| 1da177e4 LT |
48 | |
| 49 | #ifdef CONFIG_3_LEVEL_PGTABLES | |
| 7ef93905 | 50 | |
| 5e541973 | 51 | static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) |
| 7ef93905 JD |
52 | { |
| 53 | free_page((unsigned long)pmd); | |
| 54 | } | |
| 55 | ||
| 9e1b32ca | 56 | #define __pmd_free_tlb(tlb,x, address) tlb_remove_page((tlb),virt_to_page(x)) |
| 1da177e4 LT |
57 | #endif |
| 58 | ||
| 59 | #define check_pgt_cache() do { } while (0) | |
| 60 | ||
| 61 | #endif | |
| 62 |