page.h File Reference

#include <arch/page.h>
#include <linux/const.h>
#include <asm-generic/memory_model.h>
#include <asm-generic/getorder.h>

Go to the source code of this file.

Data Structures
struct	pte_t
struct	pgd_t
struct	pgprot_t

Macros
#define	PAGE_SHIFT   13
#define	PAGE_SIZE   (_AC(1, UL) << PAGE_SHIFT)
#define	PAGE_MASK   (~(PAGE_SIZE-1))
#define	clear_page(page)   memset((void *)(page), 0, PAGE_SIZE)
#define	copy_page(to, from)   memcpy((void *)(to), (void *)(from), PAGE_SIZE)
#define	clear_user_page(page, vaddr, pg)   clear_page(page)
#define	copy_user_page(to, from, vaddr, pg)   copy_page(to, from)
#define	__alloc_zeroed_user_highpage(movableflags, vma, vaddr)   alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
#define	__HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
#define	pte_val(x)   ((x).pte)
#define	pgd_val(x)   ((x).pgd)
#define	pgprot_val(x)   ((x).pgprot)
#define	__pte(x)   ((pte_t) { (x) } )
#define	__pgd(x)   ((pgd_t) { (x) } )
#define	__pgprot(x)   ((pgprot_t) { (x) } )
#define	ARCH_PFN_OFFSET   (PAGE_OFFSET >> PAGE_SHIFT)
#define	pfn_valid(pfn)   (((pfn) - (PAGE_OFFSET >> PAGE_SHIFT)) < max_mapnr)
#define	virt_to_page(kaddr)   (mem_map + (((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT))
#define	VALID_PAGE(page)   (((page) - mem_map) < max_mapnr)
#define	virt_addr_valid(kaddr)   pfn_valid((unsigned)(kaddr) >> PAGE_SHIFT)
#define	page_to_phys(page)   __pa((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
#define	VM_DATA_DEFAULT_FLAGS

Typedefs
typedef struct page *	pgtable_t

Macro Definition Documentation

#define __alloc_zeroed_user_highpage	(		movableflags,
			vma,
			vaddr
	)		alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)

Definition at line 18 of file page.h.

#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE

Definition at line 20 of file page.h.

#define __pgd

(

x

)

((pgd_t) { (x) } )

Definition at line 37 of file page.h.

#define __pgprot

(

x

)

((pgprot_t) { (x) } )

Definition at line 38 of file page.h.

#define __pte

(

x

)

((pte_t) { (x) } )

Definition at line 36 of file page.h.

#define ARCH_PFN_OFFSET   (PAGE_OFFSET >> PAGE_SHIFT)

Definition at line 42 of file page.h.

#define clear_page

(

page

)

memset((void *)(page), 0, PAGE_SIZE)

Definition at line 12 of file page.h.

#define clear_user_page	(		page,
			vaddr,
			pg
	)		clear_page(page)

Definition at line 15 of file page.h.

#define copy_page	(		to,
			from
	)		memcpy((void *)(to), (void *)(from), PAGE_SIZE)

Definition at line 13 of file page.h.

#define copy_user_page	(		to,
			from,
			vaddr,
			pg
	)		copy_page(to, from)

Definition at line 16 of file page.h.

#define PAGE_MASK   (~(PAGE_SIZE-1))

Definition at line 10 of file page.h.

#define PAGE_SHIFT   13

Definition at line 8 of file page.h.

#define PAGE_SIZE   (_AC(1, UL) << PAGE_SHIFT)

Definition at line 9 of file page.h.

#define page_to_phys

(

page

)

__pa((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)

Definition at line 61 of file page.h.

#define pfn_valid

(

pfn

)

(((pfn) - (PAGE_OFFSET >> PAGE_SHIFT)) < max_mapnr)

Definition at line 43 of file page.h.

#define pgd_val

(

x

)

((x).pgd)

Definition at line 33 of file page.h.

#define pgprot_val

(

x

)

((x).pgprot)

Definition at line 34 of file page.h.

#define pte_val

(

x

)

((x).pte)

Definition at line 32 of file page.h.

#define VALID_PAGE

(

page

)

(((page) - mem_map) < max_mapnr)

Definition at line 54 of file page.h.

#define virt_addr_valid

(

kaddr

)

pfn_valid((unsigned)(kaddr) >> PAGE_SHIFT)

Definition at line 55 of file page.h.

#define virt_to_page

(

kaddr

)

(mem_map + (((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT))

Definition at line 53 of file page.h.

#define VM_DATA_DEFAULT_FLAGS

Value:

(VM_READ | VM_WRITE | VM_EXEC | \
                 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)

Definition at line 67 of file page.h.

Typedef Documentation

typedef struct page* pgtable_t

Definition at line 29 of file page.h.