1 #ifndef _I386_PGALLOC_H
2 #define _I386_PGALLOC_H
4 #include <linux/config.h>
5 #include <asm/fixmap.h>
6 #include <linux/threads.h>
7 #include <linux/mm.h> /* for struct page */
9 #define pmd_populate_kernel(mm, pmd, pte) \
10 set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)))
12 #define pmd_populate(mm, pmd, pte) \
13 set_pmd(pmd, __pmd(_PAGE_TABLE + \
14 ((unsigned long long)page_to_pfn(pte) << \
15 (unsigned long long) PAGE_SHIFT)))
17 * Allocate and free page tables.
19 extern pgd_t *pgd_alloc(struct mm_struct *);
20 extern void pgd_free(pgd_t *pgd);
22 extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
23 extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
25 static inline void pte_free_kernel(pte_t *pte)
27 free_page((unsigned long)pte);
30 static inline void pte_free(struct page *pte)
36 #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
40 * In the PAE case we free the pmds as part of the pgd.
42 #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
43 #define pmd_free(x) do { } while (0)
44 #define __pmd_free_tlb(tlb,x) do { } while (0)
45 #define pud_populate(mm, pmd, pte) BUG()
48 #define check_pgt_cache() do { } while (0)
50 #endif /* _I386_PGALLOC_H */