1#ifndef _CRIS_PGALLOC_H 2#define _CRIS_PGALLOC_H 3 4#include <linux/threads.h> 5#include <linux/mm.h> 6 7#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte) 8#define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte)) 9#define pmd_pgtable(pmd) pmd_page(pmd) 10 11/* 12 * Allocate and free page tables. 13 */ 14 15static inline pgd_t *pgd_alloc (struct mm_struct *mm) 16{ 17 return (pgd_t *)get_zeroed_page(GFP_KERNEL); 18} 19 20static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) 21{ 22 free_page((unsigned long)pgd); 23} 24 25static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) 26{ 27 pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); 28 return pte; 29} 30 31static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) 32{ 33 struct page *pte; 34 pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); 35 pgtable_page_ctor(pte); 36 return pte; 37} 38 39static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) 40{ 41 free_page((unsigned long)pte); 42} 43 44static inline void pte_free(struct mm_struct *mm, pgtable_t pte) 45{ 46 pgtable_page_dtor(pte); 47 __free_page(pte); 48} 49 50#define __pte_free_tlb(tlb,pte,address) \ 51do { \ 52 pgtable_page_dtor(pte); \ 53 tlb_remove_page((tlb), pte); \ 54} while (0) 55 56#define check_pgt_cache() do { } while (0) 57 58#endif 59