| | 1 | #ifndef _ASM_POWERPC_PGALLOC_32_H |
| | 2 | #define _ASM_POWERPC_PGALLOC_32_H |
| | 3 | |
| | 4 | #include <linux/threads.h> |
| | 5 | |
| | 6 | #define PTE_NONCACHE_NUM 0 /* dummy for now to share code w/ppc64 */ |
| | 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(struct mm_struct *mm, 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(mm, x) do { } while (0) |
| | 19 | #define __pmd_free_tlb(tlb,x,a) 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 | #define pmd_pgtable(pmd) pmd_page(pmd) |
| | 28 | #else |
| | 29 | #define pmd_populate_kernel(mm, pmd, pte) \ |
| | 30 | (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT) |
| | 31 | #define pmd_populate(mm, pmd, pte) \ |
| | 32 | (pmd_val(*(pmd)) = (unsigned long)lowmem_page_address(pte) | _PMD_PRESENT) |
| | 33 | #define pmd_pgtable(pmd) pmd_page(pmd) |
| | 34 | #endif |
| | 35 | |
| | 36 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); |
| | 37 | extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr); |
| | 38 | |
| | 39 | static inline void pgtable_free(pgtable_free_t pgf) |
| | 40 | { |
| | 41 | void *p = (void *)(pgf.val & ~PGF_CACHENUM_MASK); |
| | 42 | |
| | 43 | free_page((unsigned long)p); |
| | 44 | } |
| | 45 | |
| | 46 | #define check_pgt_cache() do { } while (0) |
| | 47 | |
| | 48 | #endif /* _ASM_POWERPC_PGALLOC_32_H */ |
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