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Data Structures | Macros | Typedefs | Functions
page.h File Reference
#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  pmd_t
 
struct  pgd_t
 
struct  pgprot_t
 

Macros

#define PAGE_SHIFT   12
 
#define PAGE_SIZE   (_AC(1, UL) << PAGE_SHIFT)
 
#define PAGE_MASK   (~(PAGE_SIZE-1))
 
#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 PTE_MASK   PAGE_MASK
 
#define pmd_val(x)   ((x).pmd)
 
#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) } )
 
#define __MEMORY_START   CONFIG_MEMORY_START
 
#define __MEMORY_SIZE   CONFIG_MEMORY_SIZE
 
#define __PAGE_OFFSET   (0x00000000)
 
#define PAGE_OFFSET   ((unsigned long)__PAGE_OFFSET)
 
#define __pa(x)   ((unsigned long)(x) - PAGE_OFFSET)
 
#define __va(x)   ((void *)((unsigned long)(x) + PAGE_OFFSET))
 
#define PFN_BASE   (CONFIG_MEMORY_START >> PAGE_SHIFT)
 
#define ARCH_PFN_OFFSET   PFN_BASE
 
#define pfn_valid(pfn)   (((pfn) - PFN_BASE) < max_mapnr)
 
#define virt_to_page(kaddr)   pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
#define virt_addr_valid(kaddr)   pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 
#define VM_DATA_DEFAULT_FLAGS
 
#define devmem_is_allowed(x)   1
 

Typedefs

typedef struct pagepgtable_t
 

Functions

void clear_page (void *to)
 
void copy_page (void *to, void *from)
 

Macro Definition Documentation

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

Definition at line 19 of file page.h.

#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE

Definition at line 21 of file page.h.

#define __MEMORY_SIZE   CONFIG_MEMORY_SIZE

Definition at line 60 of file page.h.

#define __MEMORY_START   CONFIG_MEMORY_START

Definition at line 59 of file page.h.

#define __pa (   x)    ((unsigned long)(x) - PAGE_OFFSET)

Definition at line 69 of file page.h.

#define __PAGE_OFFSET   (0x00000000)

Definition at line 65 of file page.h.

#define __pgd (   x)    ((pgd_t) { (x) } )

Definition at line 41 of file page.h.

#define __pgprot (   x)    ((pgprot_t) { (x) } )

Definition at line 42 of file page.h.

#define __pmd (   x)    ((pmd_t) { (x) } )

Definition at line 40 of file page.h.

#define __pte (   x)    ((pte_t) { (x) } )

Definition at line 39 of file page.h.

#define __va (   x)    ((void *)((unsigned long)(x) + PAGE_OFFSET))

Definition at line 70 of file page.h.

#define ARCH_PFN_OFFSET   PFN_BASE

Definition at line 74 of file page.h.

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

Definition at line 16 of file page.h.

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

Definition at line 17 of file page.h.

#define devmem_is_allowed (   x)    1

Definition at line 84 of file page.h.

#define PAGE_MASK   (~(PAGE_SIZE-1))

Definition at line 9 of file page.h.

#define PAGE_OFFSET   ((unsigned long)__PAGE_OFFSET)

Definition at line 68 of file page.h.

#define PAGE_SHIFT   12

Definition at line 7 of file page.h.

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

Definition at line 8 of file page.h.

#define PFN_BASE   (CONFIG_MEMORY_START >> PAGE_SHIFT)

Definition at line 73 of file page.h.

#define pfn_valid (   pfn)    (((pfn) - PFN_BASE) < max_mapnr)

Definition at line 75 of file page.h.

#define pgd_val (   x)    ((x).pgd)

Definition at line 36 of file page.h.

#define pgprot_val (   x)    ((x).pgprot)

Definition at line 37 of file page.h.

#define pmd_val (   x)    ((x).pmd)

Definition at line 35 of file page.h.

#define PTE_MASK   PAGE_MASK

Definition at line 30 of file page.h.

#define pte_val (   x)    ((x).pte)

Definition at line 29 of file page.h.

#define virt_addr_valid (   kaddr)    pfn_valid(__pa(kaddr) >> PAGE_SHIFT)

Definition at line 79 of file page.h.

#define virt_to_page (   kaddr)    pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)

Definition at line 78 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 81 of file page.h.

Typedef Documentation

typedef struct page* pgtable_t

Definition at line 33 of file page.h.

Function Documentation

void clear_page ( void to)
void copy_page ( void to,
void from 
)

Definition at line 22 of file nommu.c.