1 #ifndef _ASM_X86_PGALLOC_H
2 #define _ASM_X86_PGALLOC_H
4 #include <linux/threads.h>
5 #include <linux/mm.h> /* for struct page */
6 #include <linux/pagemap.h>
9 #include <asm/paravirt.h>
11 #define paravirt_alloc_pt(mm, pfn) do { } while (0)
12 #define paravirt_alloc_pd(mm, pfn) do { } while (0)
13 #define paravirt_alloc_pd_clone(pfn, clonepfn, start, count) do { } while (0)
14 #define paravirt_release_pt(pfn) do { } while (0)
15 #define paravirt_release_pd(pfn) do { } while (0)
19 * Allocate and free page tables.
21 extern pgd_t *pgd_alloc(struct mm_struct *);
22 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
24 extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
25 extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
27 /* Should really implement gc for free page table pages. This could be
28 done with a reference count in struct page. */
30 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
32 BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
33 free_page((unsigned long)pte);
36 static inline void pte_free(struct mm_struct *mm, struct page *pte)
41 extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte);
44 # include "pgalloc_32.h"
46 # include "pgalloc_64.h"
49 #endif /* _ASM_X86_PGALLOC_H */