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kernel/linux-rt-4.4.41/arch/m68k/include/asm/page.h 1.32 KB
5113f6f70   김현기   kernel add
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  #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 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 */