1 #ifndef _I386_PGALLOC_H
2 #define _I386_PGALLOC_H
4 #include <linux/config.h>
5 #include <asm/processor.h>
6 #include <asm/fixmap.h>
7 #include <linux/threads.h>
8 #include <linux/mm.h> /* for struct page */
10 #define pmd_populate_kernel(mm, pmd, pte) \
11 set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)))
13 #define pmd_populate(mm, pmd, pte) \
14 set_pmd(pmd, __pmd(_PAGE_TABLE + \
15 ((unsigned long long)page_to_pfn(pte) << \
16 (unsigned long long) PAGE_SHIFT)))
18 * Allocate and free page tables.
20 extern pgd_t *pgd_alloc(struct mm_struct *);
21 extern void pgd_free(pgd_t *pgd);
23 extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
24 extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
26 static inline void pte_free_kernel(pte_t *pte)
28 free_page((unsigned long)pte);
31 static inline void pte_free(struct page *pte)
37 #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
41 * In the PAE case we free the pmds as part of the pgd.
43 #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
44 #define pmd_free(x) do { } while (0)
45 #define __pmd_free_tlb(tlb,x) do { } while (0)
46 #define pud_populate(mm, pmd, pte) BUG()
49 #define check_pgt_cache() do { } while (0)
51 #endif /* _I386_PGALLOC_H */