page.h File Reference

#include <spaces.h>
#include <linux/const.h>
#include <linux/pfn.h>
#include <asm/io.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_SIZE   (_AC(1,UL) << PAGE_SHIFT)
#define	PAGE_MASK   (~((1 << PAGE_SHIFT) - 1))
#define	HPAGE_SHIFT   ({BUILD_BUG(); 0; })
#define	HPAGE_SIZE   ({BUILD_BUG(); 0; })
#define	HPAGE_MASK   ({BUILD_BUG(); 0; })
#define	HUGETLB_PAGE_ORDER   ({BUILD_BUG(); 0; })
#define	ARCH_PFN_OFFSET   PFN_UP(PHYS_OFFSET)
#define	__HAVE_ARCH_COPY_USER_HIGHPAGE
#define	pte_val(x)   ((x).pte)
#define	__pte(x)   ((pte_t) { (x) } )
#define	pgd_val(x)   ((x).pgd)
#define	__pgd(x)   ((pgd_t) { (x) } )
#define	pgprot_val(x)   ((x).pgprot)
#define	__pgprot(x)   ((pgprot_t) { (x) } )
#define	ptep_buddy(x)   ((pte_t *)((unsigned long)(x) ^ sizeof(pte_t)))
#define	__pa(x)   ((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET)
#define	__va(x)   ((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET))
#define	__pa_symbol(x)   __pa(RELOC_HIDE((unsigned long)(x), 0))
#define	pfn_to_kaddr(pfn)   __va((pfn) << PAGE_SHIFT)
#define	virt_to_page(kaddr)   pfn_to_page(PFN_DOWN(virt_to_phys(kaddr)))
#define	virt_addr_valid(kaddr)   pfn_valid(PFN_DOWN(virt_to_phys(kaddr)))
#define	VM_DATA_DEFAULT_FLAGS
#define	UNCAC_ADDR(addr)
#define	CAC_ADDR(addr)

Typedefs
typedef struct page *	pgtable_t

Functions
void	build_clear_page (void)
void	build_copy_page (void)
void	clear_page (void *page)
void	copy_page (void *to, void *from)
void	copy_user_page (void *vto, void *vfrom, unsigned long vaddr, struct page *to)
void	copy_user_highpage (struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma)

Variables
unsigned long	shm_align_mask

Macro Definition Documentation

#define __HAVE_ARCH_COPY_USER_HIGHPAGE

Definition at line 92 of file page.h.

#define __pa

(

x

)

((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET)

Definition at line 154 of file page.h.

#define __pa_symbol

(

x

)

__pa(RELOC_HIDE((unsigned long)(x), 0))

Definition at line 172 of file page.h.

#define __pgd

(

x

)

((pgd_t) { (x) } )

Definition at line 124 of file page.h.

#define __pgprot

(

x

)

((pgprot_t) { (x) } )

Definition at line 131 of file page.h.

#define __pte

(

x

)

((pte_t) { (x) } )

Definition at line 110 of file page.h.

#define __va

(

x

)

((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET))

Definition at line 157 of file page.h.

#define ARCH_PFN_OFFSET   PFN_UP(PHYS_OFFSET)

Definition at line 61 of file page.h.

#define CAC_ADDR

(

addr

)

Value:

((addr) - UNCAC_BASE + PAGE_OFFSET -    \
                                PHYS_OFFSET)

Definition at line 212 of file page.h.

#define HPAGE_MASK   ({BUILD_BUG(); 0; })

Definition at line 44 of file page.h.

#define HPAGE_SHIFT   ({BUILD_BUG(); 0; })

Definition at line 42 of file page.h.

#define HPAGE_SIZE   ({BUILD_BUG(); 0; })

Definition at line 43 of file page.h.

#define HUGETLB_PAGE_ORDER   ({BUILD_BUG(); 0; })

Definition at line 45 of file page.h.

#define PAGE_MASK   (~((1 << PAGE_SHIFT) - 1))

Definition at line 34 of file page.h.

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

Definition at line 33 of file page.h.

#define pfn_to_kaddr

(

pfn

)

__va((pfn) << PAGE_SHIFT)

Definition at line 174 of file page.h.

#define pgd_val

(

x

)

((x).pgd)

Definition at line 123 of file page.h.

#define pgprot_val

(

x

)

((x).pgprot)

Definition at line 130 of file page.h.

#define pte_val

(

x

)

((x).pte)

Definition at line 109 of file page.h.

#define ptep_buddy

(

x

)

((pte_t *)((unsigned long)(x) ^ sizeof(pte_t)))

Definition at line 140 of file page.h.

#define UNCAC_ADDR

(

addr

)

Value:

((addr) - PAGE_OFFSET + UNCAC_BASE +    \
                                PHYS_OFFSET)

Definition at line 210 of file page.h.

#define virt_addr_valid

(

kaddr

)

pfn_valid(PFN_DOWN(virt_to_phys(kaddr)))

Definition at line 205 of file page.h.

#define virt_to_page

(

kaddr

)

pfn_to_page(PFN_DOWN(virt_to_phys(kaddr)))

Definition at line 204 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 207 of file page.h.

Typedef Documentation

typedef struct page* pgtable_t

Definition at line 112 of file page.h.

Function Documentation

void build_clear_page

(

void

)

Definition at line 252 of file page.c.

void build_copy_page

(

void

)

Definition at line 394 of file page.c.

void clear_page

(

void *

page

)

void copy_page	(	void *	to,
		void *	from
	)

Definition at line 22 of file nommu.c.

void copy_user_highpage	(	struct page *	to,
		struct page *	from,
		unsigned long	vaddr,
		struct vm_area_struct *	vma
	)

Definition at line 205 of file init.c.

void copy_user_page	(	void *	vto,
		void *	vfrom,
		unsigned long	vaddr,
		struct page *	to
	)

Definition at line 402 of file cache.c.

Variable Documentation

unsigned long shm_align_mask

Definition at line 18 of file mmap.c.