#ifndef _I386_PGALLOC_H #define _I386_PGALLOC_H #include <linux/config.h> #include <asm/fixmap.h> #include <linux/threads.h> #include <linux/mm.h> /* for struct page */ #define pmd_populate_kernel(mm, pmd, pte) \ set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) #define pmd_populate(mm, pmd, pte) \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ (unsigned long long) PAGE_SHIFT))) /* * Allocate and free page tables. */ extern pgd_t *pgd_alloc(struct mm_struct *); extern void pgd_free(pgd_t *pgd); extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); extern struct page *pte_alloc_one(struct mm_struct *, unsigned long); static inline void pte_free_kernel(pte_t *pte) { free_page((unsigned long)pte); } static inline void pte_free(struct page *pte) { __free_page(pte); } #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) #ifdef CONFIG_X86_PAE /* * In the PAE case we free the pmds as part of the pgd. */ #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) #define pmd_free(x) do { } while (0) #define __pmd_free_tlb(tlb,x) do { } while (0) #define pud_populate(mm, pmd, pte) BUG() #endif #define check_pgt_cache() do { } while (0) #endif /* _I386_PGALLOC_H */