1 #ifndef _ASM_POWERPC_PGALLOC_32_H
2 #define _ASM_POWERPC_PGALLOC_32_H
4 #include <linux/threads.h>
6 extern void __bad_pte(pmd_t *pmd);
8 extern pgd_t *pgd_alloc(struct mm_struct *mm);
9 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
12 * We don't have any real pmd's, and this code never triggers because
13 * the pgd will always be present..
15 /* #define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) */
16 #define pmd_free(mm, x) do { } while (0)
17 #define __pmd_free_tlb(tlb,x) do { } while (0)
18 /* #define pgd_populate(mm, pmd, pte) BUG() */
21 #define pmd_populate_kernel(mm, pmd, pte) \
22 (pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT)
23 #define pmd_populate(mm, pmd, pte) \
24 (pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT)
25 #define pmd_pgtable(pmd) pmd_page(pmd)
27 #define pmd_populate_kernel(mm, pmd, pte) \
28 (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT)
29 #define pmd_populate(mm, pmd, pte) \
30 (pmd_val(*(pmd)) = (unsigned long)lowmem_page_address(pte) | _PMD_PRESENT)
31 #define pmd_pgtable(pmd) pmd_page(pmd)
34 extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
35 extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
36 extern void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
37 extern void pte_free(struct mm_struct *mm, pgtable_t pte);
39 #define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, (pte))
41 #define check_pgt_cache() do { } while (0)
43 #endif /* _ASM_POWERPC_PGALLOC_32_H */