| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | #ifndef _CRIS_PGALLOC_H |
| 2 | #define _CRIS_PGALLOC_H |
| 3 | |
| 4 | #include <linux/threads.h> |
| 5 | #include <linux/mm.h> |
| 6 | |
| 7 | #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte) |
| 8 | #define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte)) |
| 9 | |
| 10 | /* |
| 11 | * Allocate and free page tables. |
| 12 | */ |
| 13 | |
| 14 | extern inline pgd_t *pgd_alloc (struct mm_struct *mm) |
| 15 | { |
| 16 | return (pgd_t *)get_zeroed_page(GFP_KERNEL); |
| 17 | } |
| 18 | |
| 19 | extern inline void pgd_free (pgd_t *pgd) |
| 20 | { |
| 21 | free_page((unsigned long)pgd); |
| 22 | } |
| 23 | |
| 24 | extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) |
| 25 | { |
| 26 | pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); |
| 27 | return pte; |
| 28 | } |
| 29 | |
| 30 | extern inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) |
| 31 | { |
| 32 | struct page *pte; |
| 33 | pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); |
| 34 | return pte; |
| 35 | } |
| 36 | |
| 37 | extern inline void pte_free_kernel(pte_t *pte) |
| 38 | { |
| 39 | free_page((unsigned long)pte); |
| 40 | } |
| 41 | |
| 42 | extern inline void pte_free(struct page *pte) |
| 43 | { |
| 44 | __free_page(pte); |
| 45 | } |
| 46 | |
| 47 | |
| 48 | #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) |
| 49 | |
| 50 | /* |
| 51 | * We don't have any real pmd's, and this code never triggers because |
| 52 | * the pgd will always be present.. |
| 53 | */ |
| 54 | |
| 55 | #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) |
| 56 | #define pmd_free(x) do { } while (0) |
| 57 | #define __pmd_free_tlb(tlb,x) do { } while (0) |
| 58 | #define pgd_populate(mm, pmd, pte) BUG() |
| 59 | |
| 60 | #define check_pgt_cache() do { } while (0) |
| 61 | |
| 62 | #endif |