| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifdef __KERNEL__ |
| 2 | #ifndef _PPC_PGALLOC_H |
| 3 | #define _PPC_PGALLOC_H |
| 4 | |
| 5 | #include <linux/config.h> |
| 6 | #include <linux/threads.h> |
| 7 | |
| 8 | extern void __bad_pte(pmd_t *pmd); |
| 9 | |
| 10 | extern pgd_t *pgd_alloc(struct mm_struct *mm); |
| 11 | extern void pgd_free(pgd_t *pgd); |
| 12 | |
| 13 | /* |
| 14 | * We don't have any real pmd's, and this code never triggers because |
| 15 | * the pgd will always be present.. |
| 16 | */ |
| 17 | #define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) |
| 18 | #define pmd_free(x) do { } while (0) |
| 19 | #define __pmd_free_tlb(tlb,x) do { } while (0) |
| 20 | #define pgd_populate(mm, pmd, pte) BUG() |
| 21 | |
| 22 | #ifndef CONFIG_BOOKE |
| 23 | #define pmd_populate_kernel(mm, pmd, pte) \ |
| 24 | (pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT) |
| 25 | #define pmd_populate(mm, pmd, pte) \ |
| 26 | (pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT) |
| 27 | #else |
| 28 | #define pmd_populate_kernel(mm, pmd, pte) \ |
| 29 | (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT) |
| 30 | #define pmd_populate(mm, pmd, pte) \ |
| 31 | (pmd_val(*(pmd)) = (unsigned long)page_to_virt(pte) | _PMD_PRESENT) |
| 32 | #endif |
| 33 | |
| 34 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); |
| 35 | extern struct page *pte_alloc_one(struct mm_struct *mm, unsigned long addr); |
| 36 | extern void pte_free_kernel(pte_t *pte); |
| 37 | extern void pte_free(struct page *pte); |
| 38 | |
| 39 | #define __pte_free_tlb(tlb, pte) pte_free((pte)) |
| 40 | |
| 41 | #define check_pgt_cache() do { } while (0) |
| 42 | |
| 43 | #endif /* _PPC_PGALLOC_H */ |
| 44 | #endif /* __KERNEL__ */ |