mirror of https://gitee.com/openkylin/linux.git
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
#ifndef _M68K_PAGE_H
|
|
#define _M68K_PAGE_H
|
|
|
|
#include <linux/const.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/page_offset.h>
|
|
|
|
/* PAGE_SHIFT determines the page size */
|
|
#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
|
|
#define PAGE_SHIFT 13
|
|
#else
|
|
#define PAGE_SHIFT 12
|
|
#endif
|
|
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
|
|
#define PAGE_MASK (~(PAGE_SIZE-1))
|
|
#define PAGE_OFFSET (PAGE_OFFSET_RAW)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/*
|
|
* These are used to make use of C type-checking..
|
|
*/
|
|
typedef struct { unsigned long pte; } pte_t;
|
|
typedef struct { unsigned long pmd[16]; } pmd_t;
|
|
typedef struct { unsigned long pgd; } pgd_t;
|
|
typedef struct { unsigned long pgprot; } pgprot_t;
|
|
typedef struct page *pgtable_t;
|
|
|
|
#define pte_val(x) ((x).pte)
|
|
#define pmd_val(x) ((&x)->pmd[0])
|
|
#define pgd_val(x) ((x).pgd)
|
|
#define pgprot_val(x) ((x).pgprot)
|
|
|
|
#define __pte(x) ((pte_t) { (x) } )
|
|
#define __pmd(x) ((pmd_t) { (x) } )
|
|
#define __pgd(x) ((pgd_t) { (x) } )
|
|
#define __pgprot(x) ((pgprot_t) { (x) } )
|
|
|
|
extern unsigned long _rambase;
|
|
extern unsigned long _ramstart;
|
|
extern unsigned long _ramend;
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#ifdef CONFIG_MMU
|
|
#include <asm/page_mm.h>
|
|
#else
|
|
#include <asm/page_no.h>
|
|
#endif
|
|
|
|
#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
|
|
#define __pfn_to_phys(pfn) PFN_PHYS(pfn)
|
|
|
|
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
|
|
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
|
|
|
|
#include <asm-generic/getorder.h>
|
|
|
|
#endif /* _M68K_PAGE_H */
|