/* sun3_pgalloc.h -- * reorganization around 2.3.39, routines moved from sun3_pgtable.h * * * 02/27/2002 -- Modified to support "highpte" implementation in 2.5.5 (Sam) * * moved 1/26/2000 Sam Creasey */ #ifndef _SUN3_PGALLOC_H#define _SUN3_PGALLOC_H #include <asm/tlb.h> /* FIXME - when we get this compiling *//* erm, now that it's compiling, what do we do with it? */#define _KERNPG_TABLE 0 extern const char bad_pmd_string[]; #define pmd_alloc_one(mm,address)       ({ BUG(); ((pmd_t *)2); })  static inline void pte_free_kernel(pte_t * pte){        free_page((unsigned long) pte);} static inline void pte_free(struct page *page){        __free_page(page);} #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,					  unsigned long address){	unsigned long page = __get_free_page(GFP_KERNEL|__GFP_REPEAT); 	if (!page)		return NULL; 	memset((void *)page, 0, PAGE_SIZE);	return (pte_t *) (page);} static inline struct page *pte_alloc_one(struct mm_struct *mm,					 unsigned long address){        struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0); 	if (page == NULL)		return NULL; 	clear_highpage(page);	return page; } static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte){	pmd_val(*pmd) = __pa((unsigned long)pte);} static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page){	pmd_val(*pmd) = __pa((unsigned long)page_address(page));} /* * 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(x)			do { } while (0)#define __pmd_free_tlb(tlb, x)		do { } while (0) static inline void pgd_free(pgd_t * pgd){        free_page((unsigned long) pgd);} static inline pgd_t * pgd_alloc(struct mm_struct *mm){     pgd_t *new_pgd;      new_pgd = (pgd_t *)get_zeroed_page(GFP_KERNEL);     memcpy(new_pgd, swapper_pg_dir, PAGE_SIZE);     memset(new_pgd, 0, (PAGE_OFFSET >> PGDIR_SHIFT));     return new_pgd;} #define pgd_populate(mm, pmd, pte) BUG() #endif /* SUN3_PGALLOC_H */