#ifndef _ASM_M32R_PGALLOC_H #define _ASM_M32R_PGALLOC_H /* $Id$ */ #include <linux/config.h> #include <linux/mm.h> #include <asm/io.h> #define pmd_populate_kernel(mm, pmd, pte) \ set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte) { set_pmd(pmd, __pmd(_PAGE_TABLE + page_to_phys(pte))); } /* * Allocate and free page tables. */ static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm) { pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO); return pgd; } static __inline__ void pgd_free(pgd_t *pgd) { free_page((unsigned long)pgd); } static __inline__ pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) { pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO); return pte; } static __inline__ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) { struct page *pte = alloc_page(GFP_KERNEL|__GFP_ZERO); return pte; } 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) pte_free((pte)) /* * allocating and freeing a pmd is trivial: the 1-entry pmd is * inside the pgd, so has no extra memory associated with it. * (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 pgd_populate(mm, pmd, pte) BUG() #define check_pgt_cache() do { } while (0) #endif /* _ASM_M32R_PGALLOC_H */