#ifndef _CRIS_PGALLOC_H#define _CRIS_PGALLOC_H #include <linux/threads.h>#include <linux/mm.h> #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)#define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte)) /* * Allocate and free page tables. */ extern inline pgd_t *pgd_alloc (struct mm_struct *mm){	return (pgd_t *)get_zeroed_page(GFP_KERNEL);} extern inline void pgd_free (pgd_t *pgd){	free_page((unsigned long)pgd);} extern 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_REPEAT|__GFP_ZERO); 	return pte;} extern inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address){	struct page *pte;	pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);	return pte;} extern inline void pte_free_kernel(pte_t *pte){	free_page((unsigned long)pte);} extern inline void pte_free(struct page *pte){	__free_page(pte);}  #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) /* * We don't have any real pmd's, and this code never triggers because * the pgd will always be present.. */ #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