pgtable.h File Reference

#include <asm/page.h>
#include <asm/e820.h>
#include <asm/pgtable_types.h>
#include <asm/x86_init.h>
#include <asm/pgtable_64.h>
#include <linux/mm_types.h>
#include <asm-generic/pgtable.h>

Go to the source code of this file.

Macros
#define	pgprot_noncached(prot)
#define	ZERO_PAGE(vaddr)   (virt_to_page(empty_zero_page))
#define	set_pte(ptep, pte)   native_set_pte(ptep, pte)
#define	set_pte_at(mm, addr, ptep, pte)   native_set_pte_at(mm, addr, ptep, pte)
#define	set_pmd_at(mm, addr, pmdp, pmd)   native_set_pmd_at(mm, addr, pmdp, pmd)
#define	set_pte_atomic(ptep, pte)   native_set_pte_atomic(ptep, pte)
#define	set_pmd(pmdp, pmd)   native_set_pmd(pmdp, pmd)
#define	set_pgd(pgdp, pgd)   native_set_pgd(pgdp, pgd)
#define	pgd_clear(pgd)   native_pgd_clear(pgd)
#define	set_pud(pudp, pud)   native_set_pud(pudp, pud)
#define	pud_clear(pud)   native_pud_clear(pud)
#define	pte_clear(mm, addr, ptep)   native_pte_clear(mm, addr, ptep)
#define	pmd_clear(pmd)   native_pmd_clear(pmd)
#define	pte_update(mm, addr, ptep)   do { } while (0)
#define	pte_update_defer(mm, addr, ptep)   do { } while (0)
#define	pmd_update(mm, addr, ptep)   do { } while (0)
#define	pmd_update_defer(mm, addr, ptep)   do { } while (0)
#define	pgd_val(x)   native_pgd_val(x)
#define	__pgd(x)   native_make_pgd(x)
#define	pud_val(x)   native_pud_val(x)
#define	__pud(x)   native_make_pud(x)
#define	pmd_val(x)   native_pmd_val(x)
#define	__pmd(x)   native_make_pmd(x)
#define	pte_val(x)   native_pte_val(x)
#define	__pte(x)   native_make_pte(x)
#define	arch_end_context_switch(prev)   do {} while(0)
#define	pte_page(pte)   pfn_to_page(pte_pfn(pte))
#define	pgprot_modify   pgprot_modify
#define	pte_pgprot(x)   __pgprot(pte_flags(x) & PTE_FLAGS_MASK)
#define	canon_pgprot(p)   __pgprot(massage_pgprot(p))
#define	__HAVE_ARCH_PTE_SAME
#define	pmd_page(pmd)   pfn_to_page((pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT)
#define	mk_pte(page, pgprot)   pfn_pte(page_to_pfn(page), (pgprot))
#define	io_remap_pfn_range(vma, vaddr, pfn, size, prot)   remap_pfn_range(vma, vaddr, pfn, size, prot)
#define	pgd_index(address)   (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
#define	pgd_offset(mm, address)   ((mm)->pgd + pgd_index((address)))
#define	pgd_offset_k(address)   pgd_offset(&init_mm, (address))
#define	KERNEL_PGD_BOUNDARY   pgd_index(PAGE_OFFSET)
#define	KERNEL_PGD_PTRS   (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
#define	pte_update(mm, addr, ptep)   do { } while (0)
#define	pte_update_defer(mm, addr, ptep)   do { } while (0)
#define	__HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
#define	__HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
#define	__HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
#define	__HAVE_ARCH_PTEP_GET_AND_CLEAR
#define	__HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
#define	__HAVE_ARCH_PTEP_SET_WRPROTECT
#define	flush_tlb_fix_spurious_fault(vma, address)   do { } while (0)
#define	mk_pmd(page, pgprot)   pfn_pmd(page_to_pfn(page), (pgprot))
#define	__HAVE_ARCH_PMDP_SET_ACCESS_FLAGS
#define	__HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
#define	__HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH
#define	__HAVE_ARCH_PMDP_SPLITTING_FLUSH
#define	__HAVE_ARCH_PMD_WRITE
#define	__HAVE_ARCH_PMDP_GET_AND_CLEAR
#define	__HAVE_ARCH_PMDP_SET_WRPROTECT

Functions
struct mm_struct *	pgd_page_get_mm (struct page *page)
pmd_t *	populate_extra_pmd (unsigned long vaddr)
pte_t *	populate_extra_pte (unsigned long vaddr)
int	ptep_set_access_flags (struct vm_area_struct *vma, unsigned long address, pte_t *ptep, pte_t entry, int dirty)
int	ptep_test_and_clear_young (struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
int	ptep_clear_flush_young (struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
int	pmdp_set_access_flags (struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp, pmd_t entry, int dirty)
int	pmdp_test_and_clear_young (struct vm_area_struct *vma, unsigned long addr, pmd_t *pmdp)
int	pmdp_clear_flush_young (struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp)
void	pmdp_splitting_flush (struct vm_area_struct *vma, unsigned long addr, pmd_t *pmdp)

Variables
unsigned long	empty_zero_page [PAGE_SIZE/sizeof(unsigned long)]
spinlock_t	pgd_lock
struct list_head	pgd_list
int	direct_gbpages

Macro Definition Documentation

#define __HAVE_ARCH_PMD_WRITE

Definition at line 733 of file pgtable.h.

#define __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH

Definition at line 724 of file pgtable.h.

#define __HAVE_ARCH_PMDP_GET_AND_CLEAR

Definition at line 739 of file pgtable.h.

#define __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS

Definition at line 715 of file pgtable.h.

#define __HAVE_ARCH_PMDP_SET_WRPROTECT

Definition at line 748 of file pgtable.h.

#define __HAVE_ARCH_PMDP_SPLITTING_FLUSH

Definition at line 729 of file pgtable.h.

#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG

Definition at line 720 of file pgtable.h.

#define __HAVE_ARCH_PTE_SAME

Definition at line 399 of file pgtable.h.

#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH

Definition at line 672 of file pgtable.h.

#define __HAVE_ARCH_PTEP_GET_AND_CLEAR

Definition at line 676 of file pgtable.h.

#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL

Definition at line 685 of file pgtable.h.

#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS

Definition at line 663 of file pgtable.h.

#define __HAVE_ARCH_PTEP_SET_WRPROTECT

Definition at line 703 of file pgtable.h.

#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG

Definition at line 668 of file pgtable.h.

#define __pgd

(

x

)

native_make_pgd(x)

Definition at line 67 of file pgtable.h.

#define __pmd

(

x

)

native_make_pmd(x)

Definition at line 76 of file pgtable.h.

#define __pte

(

x

)

native_make_pte(x)

Definition at line 80 of file pgtable.h.

#define __pud

(

x

)

native_make_pud(x)

Definition at line 71 of file pgtable.h.

#define arch_end_context_switch

(

prev

)

do {} while(0)

Definition at line 82 of file pgtable.h.

#define canon_pgprot

(

p

)

__pgprot(massage_pgprot(p))

Definition at line 353 of file pgtable.h.

#define flush_tlb_fix_spurious_fault	(		vma,
			address
	)		do { } while (0)

Definition at line 711 of file pgtable.h.

#define io_remap_pfn_range	(		vma,
			vaddr,
			pfn,
			size,
			prot
	)		remap_pfn_range(vma, vaddr, pfn, size, prot)

Definition at line 490 of file pgtable.h.

#define KERNEL_PGD_BOUNDARY   pgd_index(PAGE_OFFSET)

Definition at line 599 of file pgtable.h.

#define KERNEL_PGD_PTRS   (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)

Definition at line 600 of file pgtable.h.

#define mk_pmd	(		page,
			pgprot
	)		pfn_pmd(page_to_pfn(page), (pgprot))

Definition at line 713 of file pgtable.h.

#define mk_pte	(		page,
			pgprot
	)		pfn_pte(page_to_pfn(page), (pgprot))

Definition at line 462 of file pgtable.h.

#define pgd_clear

(

pgd

)

native_pgd_clear(pgd)

Definition at line 47 of file pgtable.h.

#define pgd_index

(

address

)

(((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))

Definition at line 585 of file pgtable.h.

#define pgd_offset	(		mm,
			address
	)		((mm)->pgd + pgd_index((address)))

Definition at line 591 of file pgtable.h.

#define pgd_offset_k

(

address

)

pgd_offset(&init_mm, (address))

Definition at line 596 of file pgtable.h.

#define pgd_val

(

x

)

native_pgd_val(x)

Definition at line 66 of file pgtable.h.

#define pgprot_modify   pgprot_modify

Definition at line 343 of file pgtable.h.

#define pgprot_noncached

(

prot

)

Value:

((boot_cpu_data.x86 > 3)                \
     ? (__pgprot(pgprot_val(prot) | _PAGE_CACHE_UC_MINUS))  \
     : (prot))

Definition at line 12 of file pgtable.h.

#define pmd_clear

(

pmd

)

native_pmd_clear(pmd)

Definition at line 59 of file pgtable.h.

#define pmd_page

(

pmd

)

pfn_to_page((pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT)

Definition at line 442 of file pgtable.h.

#define pmd_update	(		mm,
			addr,
			ptep
	)		do { } while (0)

Definition at line 63 of file pgtable.h.

#define pmd_update_defer	(		mm,
			addr,
			ptep
	)		do { } while (0)

Definition at line 64 of file pgtable.h.

#define pmd_val

(

x

)

native_pmd_val(x)

Definition at line 75 of file pgtable.h.

#define pte_clear	(		mm,
			addr,
			ptep
	)		native_pte_clear(mm, addr, ptep)

Definition at line 58 of file pgtable.h.

#define pte_page

(

pte

)

pfn_to_page(pte_pfn(pte))

Definition at line 145 of file pgtable.h.

#define pte_pgprot

(

x

)

__pgprot(pte_flags(x) & PTE_FLAGS_MASK)

Definition at line 351 of file pgtable.h.

#define pte_update	(		mm,
			addr,
			ptep
	)		do { } while (0)

Definition at line 650 of file pgtable.h.

#define pte_update	(		mm,
			addr,
			ptep
	)		do { } while (0)

Definition at line 650 of file pgtable.h.

#define pte_update_defer	(		mm,
			addr,
			ptep
	)		do { } while (0)

Definition at line 651 of file pgtable.h.

#define pte_update_defer	(		mm,
			addr,
			ptep
	)		do { } while (0)

Definition at line 651 of file pgtable.h.

#define pte_val

(

x

)

native_pte_val(x)

Definition at line 79 of file pgtable.h.

#define pud_clear

(

pud

)

native_pud_clear(pud)

Definition at line 55 of file pgtable.h.

#define pud_val

(

x

)

native_pud_val(x)

Definition at line 70 of file pgtable.h.

#define set_pgd	(		pgdp,
			pgd
	)		native_set_pgd(pgdp, pgd)

Definition at line 46 of file pgtable.h.

#define set_pmd	(		pmdp,
			pmd
	)		native_set_pmd(pmdp, pmd)

Definition at line 43 of file pgtable.h.

#define set_pmd_at	(		mm,
			addr,
			pmdp,
			pmd
	)		native_set_pmd_at(mm, addr, pmdp, pmd)

Definition at line 38 of file pgtable.h.

#define set_pte	(		ptep,
			pte
	)		native_set_pte(ptep, pte)

Definition at line 36 of file pgtable.h.

#define set_pte_at	(		mm,
			addr,
			ptep,
			pte
	)		native_set_pte_at(mm, addr, ptep, pte)

Definition at line 37 of file pgtable.h.

#define set_pte_atomic	(		ptep,
			pte
	)		native_set_pte_atomic(ptep, pte)

Definition at line 40 of file pgtable.h.

#define set_pud	(		pudp,
			pud
	)		native_set_pud(pudp, pud)

Definition at line 51 of file pgtable.h.

#define ZERO_PAGE

(

vaddr

)

(virt_to_page(empty_zero_page))

Definition at line 26 of file pgtable.h.

Function Documentation

struct mm_struct* pgd_page_get_mm ( struct page *  page )

read

Definition at line 97 of file pgtable.c.

int pmdp_clear_flush_young	(	struct vm_area_struct *	vma,
		unsigned long	address,
		pmd_t *	pmdp
	)

Definition at line 69 of file pgtable-generic.c.

int pmdp_set_access_flags	(	struct vm_area_struct *	vma,
		unsigned long	address,
		pmd_t *	pmdp,
		pmd_t	entry,
		int	dirty
	)

Definition at line 37 of file pgtable-generic.c.

void pmdp_splitting_flush	(	struct vm_area_struct *	vma,
		unsigned long	addr,
		pmd_t *	pmdp
	)

int pmdp_test_and_clear_young	(	struct vm_area_struct *	vma,
		unsigned long	addr,
		pmd_t *	pmdp
	)

pmd_t* populate_extra_pmd

(

unsigned long

vaddr

)

Definition at line 132 of file init_32.c.

pte_t* populate_extra_pte

(

unsigned long

vaddr

)

Definition at line 140 of file init_32.c.

int ptep_clear_flush_young	(	struct vm_area_struct *	vma,
		unsigned long	address,
		pte_t *	ptep
	)

Definition at line 370 of file pgtable.c.

int ptep_set_access_flags	(	struct vm_area_struct *	vma,
		unsigned long	address,
		pte_t *	ptep,
		pte_t	entry,
		int	dirty
	)

Definition at line 209 of file pgtable.c.

int ptep_test_and_clear_young	(	struct vm_area_struct *	vma,
		unsigned long	addr,
		pte_t *	ptep
	)

Definition at line 346 of file pgtable.c.

Variable Documentation

int direct_gbpages

Definition at line 30 of file init.c.

unsigned long empty_zero_page[PAGE_SIZE/sizeof(unsigned long)]

Definition at line 42 of file mmu.c.

struct list_head pgd_list

Definition at line 83 of file pgalloc.c.

spinlock_t pgd_lock