#ifndef __ASM_SH_PGALLOC_H#define __ASM_SH_PGALLOC_H #include <linux/quicklist.h>#include <asm/page.h> #define QUICK_PGD 0	/* We preserve special mappings over free */#define QUICK_PT 1	/* Other page table pages that are zero on free */ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,				       pte_t *pte){	set_pmd(pmd, __pmd((unsigned long)pte));} static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,				pgtable_t pte){	set_pmd(pmd, __pmd((unsigned long)page_address(pte)));}#define pmd_pgtable(pmd) pmd_page(pmd) static inline void pgd_ctor(void *x){	pgd_t *pgd = x; 	memcpy(pgd + USER_PTRS_PER_PGD,	       swapper_pg_dir + USER_PTRS_PER_PGD,	       (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));} /* * Allocate and free page tables. */static inline pgd_t *pgd_alloc(struct mm_struct *mm){	return quicklist_alloc(QUICK_PGD, GFP_KERNEL | __GFP_REPEAT, pgd_ctor);} static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd){	quicklist_free(QUICK_PGD, NULL, pgd);} static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,					  unsigned long address){	return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);} static inline pgtable_t pte_alloc_one(struct mm_struct *mm,					unsigned long address){	struct page *page;	void *pg; 	pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);	if (!pg)		return NULL;	page = virt_to_page(pg);	pgtable_page_ctor(page);	return page;} static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte){	quicklist_free(QUICK_PT, NULL, pte);} static inline void pte_free(struct mm_struct *mm, pgtable_t pte){	pgtable_page_dtor(pte);	quicklist_free_page(QUICK_PT, NULL, pte);} #define __pte_free_tlb(tlb,pte)				\do {							\	pgtable_page_dtor(pte);				\	tlb_remove_page((tlb), (pte));			\} while (0) /* * 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_free(mm, x)			do { } while (0)#define __pmd_free_tlb(tlb,x)		do { } while (0) static inline void check_pgt_cache(void){	quicklist_trim(QUICK_PGD, NULL, 25, 16);	quicklist_trim(QUICK_PT, NULL, 25, 16);} #endif /* __ASM_SH_PGALLOC_H */