1#ifndef _H8300_PAGE_H 2#define _H8300_PAGE_H 3 4/* PAGE_SHIFT determines the page size */ 5 6#define PAGE_SHIFT (12) 7#define PAGE_SIZE (1UL << PAGE_SHIFT) 8#define PAGE_MASK (~(PAGE_SIZE-1)) 9 10#include <asm/setup.h> 11 12#ifndef __ASSEMBLY__ 13 14#define get_user_page(vaddr) __get_free_page(GFP_KERNEL) 15#define free_user_page(page, addr) free_page(addr) 16 17#define clear_page(page) memset((page), 0, PAGE_SIZE) 18#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) 19 20#define clear_user_page(page, vaddr, pg) clear_page(page) 21#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) 22 23#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ 24 alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) 25#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE 26 27/* 28 * These are used to make use of C type-checking.. 29 */ 30typedef struct { unsigned long pte; } pte_t; 31typedef struct { unsigned long pmd[16]; } pmd_t; 32typedef struct { unsigned long pgd; } pgd_t; 33typedef struct { unsigned long pgprot; } pgprot_t; 34typedef struct page *pgtable_t; 35 36#define pte_val(x) ((x).pte) 37#define pmd_val(x) ((&x)->pmd[0]) 38#define pgd_val(x) ((x).pgd) 39#define pgprot_val(x) ((x).pgprot) 40 41#define __pte(x) ((pte_t) { (x) } ) 42#define __pmd(x) ((pmd_t) { (x) } ) 43#define __pgd(x) ((pgd_t) { (x) } ) 44#define __pgprot(x) ((pgprot_t) { (x) } ) 45 46extern unsigned long memory_start; 47extern unsigned long memory_end; 48 49#endif /* !__ASSEMBLY__ */ 50 51#include <asm/page_offset.h> 52 53#define PAGE_OFFSET (PAGE_OFFSET_RAW) 54 55#ifndef __ASSEMBLY__ 56 57#define __pa(vaddr) virt_to_phys(vaddr) 58#define __va(paddr) phys_to_virt((unsigned long)paddr) 59 60#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) 61#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) 62 63#define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT) 64#define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)) 65#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) 66#define pfn_valid(page) (page < max_mapnr) 67 68#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT) 69 70#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ 71 ((void *)(kaddr) < (void *)memory_end)) 72 73#endif /* __ASSEMBLY__ */ 74 75#include <asm-generic/memory_model.h> 76#include <asm-generic/getorder.h> 77 78#endif /* _H8300_PAGE_H */ 79