1 #ifndef _ASM_POWERPC_PGALLOC_32_H
2 #define _ASM_POWERPC_PGALLOC_32_H
4 #include <linux/threads.h>
6 #define PTE_NONCACHE_NUM 0 /* dummy for now to share code w/ppc64 */
8 extern void __bad_pte(pmd_t *pmd);
10 extern pgd_t *pgd_alloc(struct mm_struct *mm);
11 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
14 * We don't have any real pmd's, and this code never triggers because
15 * the pgd will always be present..
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) do { } while (0)
20 /* #define pgd_populate(mm, pmd, pte) BUG() */
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)
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)
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);
39 static inline void pgtable_free(pgtable_free_t pgf)
41 void *p = (void *)(pgf.val & ~PGF_CACHENUM_MASK);
43 free_page((unsigned long)p);
46 #define check_pgt_cache() do { } while (0)
48 #endif /* _ASM_POWERPC_PGALLOC_32_H */