projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5f97f7f9 HS |
1 | /* |
| 2 | * Copyright (C) 2004-2006 Atmel Corporation | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License version 2 as | |
| 6 | * published by the Free Software Foundation. | |
| 7 | */ | |
| 8 | #ifndef __ASM_AVR32_PGALLOC_H | |
| 9 | #define __ASM_AVR32_PGALLOC_H | |
| 10 | ||
| 11 | #include <asm/processor.h> | |
| 12 | #include <linux/threads.h> | |
| 13 | #include <linux/slab.h> | |
| 14 | #include <linux/mm.h> | |
| 15 | ||
| 16 | #define pmd_populate_kernel(mm, pmd, pte) \ | |
| 17 | set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) | |
| 18 | ||
| 19 | static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd, | |
| 20 | struct page *pte) | |
| 21 | { | |
| 22 | set_pmd(pmd, __pmd(_PAGE_TABLE + page_to_phys(pte))); | |
| 23 | } | |
| 24 | ||
| 25 | /* | |
| 26 | * Allocate and free page tables | |
| 27 | */ | |
| 28 | static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm) | |
| 29 | { | |
| 5221b34e | 30 | return kcalloc(USER_PTRS_PER_PGD, sizeof(pgd_t), GFP_KERNEL); |
| 5f97f7f9 HS |
31 | } |
| 32 | ||
| 33 | static inline void pgd_free(pgd_t *pgd) | |
| 34 | { | |
| 35 | kfree(pgd); | |
| 36 | } | |
| 37 | ||
| 38 | static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, | |
| 39 | unsigned long address) | |
| 40 | { | |
| 5f97f7f9 HS |
41 | pte_t *pte; |
| 42 | ||
| e7f3bac9 | 43 | pte = (pte_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT); |
| 5f97f7f9 HS |
44 | |
| 45 | return pte; | |
| 46 | } | |
| 47 | ||
| 48 | static inline struct page *pte_alloc_one(struct mm_struct *mm, | |
| 49 | unsigned long address) | |
| 50 | { | |
| 5f97f7f9 HS |
51 | struct page *pte; |
| 52 | ||
| e7f3bac9 | 53 | pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); |
| 5f97f7f9 HS |
54 | |
| 55 | return pte; | |
| 56 | } | |
| 57 | ||
| 58 | static inline void pte_free_kernel(pte_t *pte) | |
| 59 | { | |
| 60 | free_page((unsigned long)pte); | |
| 61 | } | |
| 62 | ||
| 63 | static inline void pte_free(struct page *pte) | |
| 64 | { | |
| 65 | __free_page(pte); | |
| 66 | } | |
| 67 | ||
| 68 | #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) | |
| 69 | ||
| 70 | #define check_pgt_cache() do { } while(0) | |
| 71 | ||
| 72 | #endif /* __ASM_AVR32_PGALLOC_H */ |