| #ifndef _I386_PGALLOC_H |
| #define _I386_PGALLOC_H |
| |
| static inline void pmd_populate_kernel(struct mm_struct *mm, |
| pmd_t *pmd, pte_t *pte) |
| { |
| paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT); |
| set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE)); |
| } |
| |
| static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte) |
| { |
| unsigned long pfn = page_to_pfn(pte); |
| |
| paravirt_alloc_pt(mm, pfn); |
| set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE)); |
| } |
| #define pmd_pgtable(pmd) pmd_page(pmd) |
| |
| #ifdef CONFIG_X86_PAE |
| /* |
| * In the PAE case we free the pmds as part of the pgd. |
| */ |
| static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) |
| { |
| return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); |
| } |
| |
| static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) |
| { |
| BUG_ON((unsigned long)pmd & (PAGE_SIZE-1)); |
| free_page((unsigned long)pmd); |
| } |
| |
| extern void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd); |
| |
| extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd); |
| |
| #endif /* CONFIG_X86_PAE */ |
| |
| #endif /* _I386_PGALLOC_H */ |