| #ifdef __KERNEL__ |
| #ifndef _PPC_PGALLOC_H |
| #define _PPC_PGALLOC_H |
| |
| #include <linux/threads.h> |
| |
| extern void __bad_pte(pmd_t *pmd); |
| |
| extern pgd_t *pgd_alloc(struct mm_struct *mm); |
| extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); |
| |
| /* |
| * We don't have any real pmd's, and this code never triggers because |
| * the pgd will always be present.. |
| */ |
| #define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) |
| #define pmd_free(mm, x) do { } while (0) |
| #define __pmd_free_tlb(tlb,x) do { } while (0) |
| #define pgd_populate(mm, pmd, pte) BUG() |
| |
| #ifndef CONFIG_BOOKE |
| #define pmd_populate_kernel(mm, pmd, pte) \ |
| (pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT) |
| #define pmd_populate(mm, pmd, pte) \ |
| (pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT) |
| #define pmd_pgtable(pmd) pmd_page(pmd) |
| #else |
| #define pmd_populate_kernel(mm, pmd, pte) \ |
| (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT) |
| #define pmd_populate(mm, pmd, pte) \ |
| (pmd_val(*(pmd)) = (unsigned long)lowmem_page_address(pte) | _PMD_PRESENT) |
| #define pmd_pgtable(pmd) pmd_page(pmd) |
| #endif |
| |
| extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); |
| extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr); |
| extern void pte_free_kernel(struct mm_struct *mm, pte_t *pte); |
| extern void pte_free(struct mm_struct *mm, pgtable_t pte); |
| |
| #define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, (pte)) |
| |
| #define check_pgt_cache() do { } while (0) |
| |
| #endif /* _PPC_PGALLOC_H */ |
| #endif /* __KERNEL__ */ |
