#ifndef __ASM_SH_PGALLOC_H#define __ASM_SH_PGALLOC_H #include <linux/threads.h>#include <linux/slab.h>#include <linux/mm.h> #define pgd_quicklist ((unsigned long *)0)#define pmd_quicklist ((unsigned long *)0)#define pte_quicklist ((unsigned long *)0)#define pgtable_cache_size 0L #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){	unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t));	pgd_t *pgd = (pgd_t *)kmalloc(pgd_size, GFP_KERNEL); 	if (pgd)		memset(pgd, 0, pgd_size); 	return pgd;} static inline void pgd_free(pgd_t *pgd){	kfree(pgd);} static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,					  unsigned long address){	pte_t *pte; 	pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); 	return pte;} static 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;} 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)) /* * allocating and freeing a pmd is trivial: the 1-entry pmd is * inside the pgd, so has no extra memory associated with it. */ #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) #ifdef CONFIG_CPU_SH4#define PG_mapped			PG_arch_1#endif #endif /* __ASM_SH_PGALLOC_H */