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Macros | Functions | Variables
pgtable.h File Reference
#include <asm-generic/4level-fixup.h>
#include <asm/fixmap.h>
#include <linux/bitops.h>
#include <linux/spinlock.h>
#include <asm/processor.h>
#include <asm/cache.h>
#include <asm/page.h>
#include <asm-generic/pgtable.h>

Go to the source code of this file.

Macros

#define kern_addr_valid(addr)   (1)
 
#define set_pte(pteptr, pteval)
 
#define set_pte_at(mm, addr, ptep, pteval)   set_pte(ptep,pteval)
 
#define pte_ERROR(e)   printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
 
#define pmd_ERROR(e)   printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, (unsigned long)pmd_val(e))
 
#define pgd_ERROR(e)   printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
 
#define KERNEL_INITIAL_ORDER   24 /* 0 to 1<<24 = 16MB */
 
#define KERNEL_INITIAL_SIZE   (1 << KERNEL_INITIAL_ORDER)
 
#define PT_NLEVELS   2
 
#define PGD_ORDER   1 /* Number of pages per pgd */
 
#define PGD_ALLOC_ORDER   PGD_ORDER
 
#define PLD_SHIFT   PAGE_SHIFT
 
#define PLD_SIZE   PAGE_SIZE
 
#define BITS_PER_PTE   (PAGE_SHIFT - BITS_PER_PTE_ENTRY)
 
#define PTRS_PER_PTE   (1UL << BITS_PER_PTE)
 
#define pgtable_cache_init()   do { } while (0)
 
#define PMD_SHIFT   (PLD_SHIFT + BITS_PER_PTE)
 
#define PMD_SIZE   (1UL << PMD_SHIFT)
 
#define PMD_MASK   (~(PMD_SIZE-1))
 
#define BITS_PER_PMD   0
 
#define PTRS_PER_PMD   (1UL << BITS_PER_PMD)
 
#define PGDIR_SHIFT   (PMD_SHIFT + BITS_PER_PMD)
 
#define BITS_PER_PGD   (BITS_PER_LONG - PGDIR_SHIFT)
 
#define PGDIR_SIZE   (1UL << PGDIR_SHIFT)
 
#define PGDIR_MASK   (~(PGDIR_SIZE-1))
 
#define PTRS_PER_PGD   (1UL << BITS_PER_PGD)
 
#define USER_PTRS_PER_PGD   PTRS_PER_PGD
 
#define MAX_ADDRBITS   (BITS_PER_LONG)
 
#define MAX_ADDRESS   (1UL << MAX_ADDRBITS)
 
#define SPACEID_SHIFT   0
 
#define PT_INITIAL   (1 << (KERNEL_INITIAL_ORDER - PMD_SHIFT))
 
#define FIRST_USER_ADDRESS   0
 
#define _PAGE_READ_BIT   31 /* (0x001) read access allowed */
 
#define _PAGE_WRITE_BIT   30 /* (0x002) write access allowed */
 
#define _PAGE_EXEC_BIT   29 /* (0x004) execute access allowed */
 
#define _PAGE_GATEWAY_BIT   28 /* (0x008) privilege promotion allowed */
 
#define _PAGE_DMB_BIT   27 /* (0x010) Data Memory Break enable (B bit) */
 
#define _PAGE_DIRTY_BIT   26 /* (0x020) Page Dirty (D bit) */
 
#define _PAGE_FILE_BIT   _PAGE_DIRTY_BIT /* overload this bit */
 
#define _PAGE_REFTRAP_BIT   25 /* (0x040) Page Ref. Trap enable (T bit) */
 
#define _PAGE_NO_CACHE_BIT   24 /* (0x080) Uncached Page (U bit) */
 
#define _PAGE_ACCESSED_BIT   23 /* (0x100) Software: Page Accessed */
 
#define _PAGE_PRESENT_BIT   22 /* (0x200) Software: translation valid */
 
#define _PAGE_USER_BIT   20 /* (0x800) Software: User accessible page */
 
#define xlate_pabit(x)   (31 - x)
 
#define PTE_SHIFT   xlate_pabit(_PAGE_USER_BIT)
 
#define PFN_PTE_SHIFT   12
 
#define PTE_FILE_MAX_BITS   (BITS_PER_LONG - PTE_SHIFT)
 
#define pte_to_pgoff(pte)   (pte_val(pte) >> PTE_SHIFT)
 
#define pgoff_to_pte(off)   ((pte_t) { ((off) << PTE_SHIFT) | _PAGE_FILE })
 
#define _PAGE_READ   (1 << xlate_pabit(_PAGE_READ_BIT))
 
#define _PAGE_WRITE   (1 << xlate_pabit(_PAGE_WRITE_BIT))
 
#define _PAGE_RW   (_PAGE_READ | _PAGE_WRITE)
 
#define _PAGE_EXEC   (1 << xlate_pabit(_PAGE_EXEC_BIT))
 
#define _PAGE_GATEWAY   (1 << xlate_pabit(_PAGE_GATEWAY_BIT))
 
#define _PAGE_DMB   (1 << xlate_pabit(_PAGE_DMB_BIT))
 
#define _PAGE_DIRTY   (1 << xlate_pabit(_PAGE_DIRTY_BIT))
 
#define _PAGE_REFTRAP   (1 << xlate_pabit(_PAGE_REFTRAP_BIT))
 
#define _PAGE_NO_CACHE   (1 << xlate_pabit(_PAGE_NO_CACHE_BIT))
 
#define _PAGE_ACCESSED   (1 << xlate_pabit(_PAGE_ACCESSED_BIT))
 
#define _PAGE_PRESENT   (1 << xlate_pabit(_PAGE_PRESENT_BIT))
 
#define _PAGE_USER   (1 << xlate_pabit(_PAGE_USER_BIT))
 
#define _PAGE_FILE   (1 << xlate_pabit(_PAGE_FILE_BIT))
 
#define _PAGE_TABLE   (_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED)
 
#define _PAGE_CHG_MASK   (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
 
#define _PAGE_KERNEL_RO   (_PAGE_PRESENT | _PAGE_READ | _PAGE_DIRTY | _PAGE_ACCESSED)
 
#define _PAGE_KERNEL_EXEC   (_PAGE_KERNEL_RO | _PAGE_EXEC)
 
#define _PAGE_KERNEL_RWX   (_PAGE_KERNEL_EXEC | _PAGE_WRITE)
 
#define _PAGE_KERNEL   (_PAGE_KERNEL_RO | _PAGE_WRITE)
 
#define _PxD_PRESENT_BIT   31
 
#define _PxD_ATTACHED_BIT   30
 
#define _PxD_VALID_BIT   29
 
#define PxD_FLAG_PRESENT   (1 << xlate_pabit(_PxD_PRESENT_BIT))
 
#define PxD_FLAG_ATTACHED   (1 << xlate_pabit(_PxD_ATTACHED_BIT))
 
#define PxD_FLAG_VALID   (1 << xlate_pabit(_PxD_VALID_BIT))
 
#define PxD_FLAG_MASK   (0xf)
 
#define PxD_FLAG_SHIFT   (4)
 
#define PxD_VALUE_SHIFT   (8) /* (PAGE_SHIFT-PxD_FLAG_SHIFT) */
 
#define PAGE_NONE   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
 
#define PAGE_SHARED   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
 
#define PAGE_READONLY   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
 
#define PAGE_WRITEONLY   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_WRITE | _PAGE_ACCESSED)
 
#define PAGE_EXECREAD   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
 
#define PAGE_COPY   PAGE_EXECREAD
 
#define PAGE_RWX   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
 
#define PAGE_KERNEL   __pgprot(_PAGE_KERNEL)
 
#define PAGE_KERNEL_EXEC   __pgprot(_PAGE_KERNEL_EXEC)
 
#define PAGE_KERNEL_RWX   __pgprot(_PAGE_KERNEL_RWX)
 
#define PAGE_KERNEL_RO   __pgprot(_PAGE_KERNEL_RO)
 
#define PAGE_KERNEL_UNC   __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
 
#define PAGE_GATEWAY   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_GATEWAY| _PAGE_READ)
 
#define __P000   PAGE_NONE
 
#define __P001   PAGE_READONLY
 
#define __P010   __P000 /* copy on write */
 
#define __P011   __P001 /* copy on write */
 
#define __P100   PAGE_EXECREAD
 
#define __P101   PAGE_EXECREAD
 
#define __P110   __P100 /* copy on write */
 
#define __P111   __P101 /* copy on write */
 
#define __S000   PAGE_NONE
 
#define __S001   PAGE_READONLY
 
#define __S010   PAGE_WRITEONLY
 
#define __S011   PAGE_SHARED
 
#define __S100   PAGE_EXECREAD
 
#define __S101   PAGE_EXECREAD
 
#define __S110   PAGE_RWX
 
#define __S111   PAGE_RWX
 
#define ZERO_PAGE(vaddr)   (virt_to_page(empty_zero_page))
 
#define pte_none(x)   (pte_val(x) == 0)
 
#define pte_present(x)   (pte_val(x) & _PAGE_PRESENT)
 
#define pte_clear(mm, addr, xp)   do { pte_val(*(xp)) = 0; } while (0)
 
#define pmd_flag(x)   (pmd_val(x) & PxD_FLAG_MASK)
 
#define pmd_address(x)   ((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
 
#define pgd_flag(x)   (pgd_val(x) & PxD_FLAG_MASK)
 
#define pgd_address(x)   ((unsigned long)(pgd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
 
#define pmd_none(x)   (!pmd_val(x))
 
#define pmd_bad(x)   (!(pmd_flag(x) & PxD_FLAG_VALID))
 
#define pmd_present(x)   (pmd_flag(x) & PxD_FLAG_PRESENT)
 
#define __mk_pte(addr, pgprot)
 
#define mk_pte(page, pgprot)   pfn_pte(page_to_pfn(page), (pgprot))
 
#define pte_pfn(x)   (pte_val(x) >> PFN_PTE_SHIFT)
 
#define pte_page(pte)   (pfn_to_page(pte_pfn(pte)))
 
#define pmd_page_vaddr(pmd)   ((unsigned long) __va(pmd_address(pmd)))
 
#define __pmd_page(pmd)   ((unsigned long) __va(pmd_address(pmd)))
 
#define pmd_page(pmd)   virt_to_page((void *)__pmd_page(pmd))
 
#define pgd_index(address)   ((address) >> PGDIR_SHIFT)
 
#define pgd_offset(mm, address)   ((mm)->pgd + ((address) >> PGDIR_SHIFT))
 
#define pgd_offset_k(address)   pgd_offset(&init_mm, address)
 
#define pmd_offset(dir, addr)   ((pmd_t *) dir)
 
#define pte_index(address)   (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1))
 
#define pte_offset_kernel(pmd, address)   ((pte_t *) pmd_page_vaddr(*(pmd)) + pte_index(address))
 
#define pte_offset_map(pmd, address)   pte_offset_kernel(pmd, address)
 
#define pte_unmap(pte)   do { } while (0)
 
#define pte_unmap(pte)   do { } while (0)
 
#define pte_unmap_nested(pte)   do { } while (0)
 
#define PG_dcache_dirty   PG_arch_1
 
#define __swp_type(x)   ((x).val & 0x1f)
 
#define __swp_offset(x)
 
#define __swp_entry(type, offset)
 
#define __pte_to_swp_entry(pte)   ((swp_entry_t) { pte_val(pte) })
 
#define __swp_entry_to_pte(x)   ((pte_t) { (x).val })
 
#define pte_same(A, B)   (pte_val(A) == pte_val(B))
 
#define _PAGE_SIZE_ENCODING_4K   0
 
#define _PAGE_SIZE_ENCODING_16K   1
 
#define _PAGE_SIZE_ENCODING_64K   2
 
#define _PAGE_SIZE_ENCODING_256K   3
 
#define _PAGE_SIZE_ENCODING_1M   4
 
#define _PAGE_SIZE_ENCODING_4M   5
 
#define _PAGE_SIZE_ENCODING_16M   6
 
#define _PAGE_SIZE_ENCODING_64M   7
 
#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)   remap_pfn_range(vma, vaddr, pfn, size, prot)
 
#define pgprot_noncached(prot)   __pgprot(pgprot_val(prot) | _PAGE_NO_CACHE)
 
#define HAVE_ARCH_UNMAPPED_AREA
 
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 
#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 
#define __HAVE_ARCH_PTEP_SET_WRPROTECT
 
#define __HAVE_ARCH_PTE_SAME
 

Functions

void paging_init (void)
 
void update_mmu_cache (struct vm_area_struct *, unsigned long, pte_t *)
 

Variables

pgd_t swapper_pg_dir []
 
pte_t pg0 []
 
unsigned longempty_zero_page
 
spinlock_t pa_dbit_lock
 

Macro Definition Documentation

#define __HAVE_ARCH_PTE_SAME

Definition at line 511 of file pgtable.h.

#define __HAVE_ARCH_PTEP_GET_AND_CLEAR

Definition at line 509 of file pgtable.h.

#define __HAVE_ARCH_PTEP_SET_WRPROTECT

Definition at line 510 of file pgtable.h.

#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG

Definition at line 508 of file pgtable.h.

#define __mk_pte (   addr,
  pgprot 
)
Value:
({ \
\
__pte; \
})

Definition at line 351 of file pgtable.h.

#define __P000   PAGE_NONE

Definition at line 232 of file pgtable.h.

#define __P001   PAGE_READONLY

Definition at line 233 of file pgtable.h.

#define __P010   __P000 /* copy on write */

Definition at line 234 of file pgtable.h.

#define __P011   __P001 /* copy on write */

Definition at line 235 of file pgtable.h.

#define __P100   PAGE_EXECREAD

Definition at line 236 of file pgtable.h.

#define __P101   PAGE_EXECREAD

Definition at line 237 of file pgtable.h.

#define __P110   __P100 /* copy on write */

Definition at line 238 of file pgtable.h.

#define __P111   __P101 /* copy on write */

Definition at line 239 of file pgtable.h.

#define __pmd_page (   pmd)    ((unsigned long) __va(pmd_address(pmd)))

Definition at line 380 of file pgtable.h.

#define __pte_to_swp_entry (   pte)    ((swp_entry_t) { pte_val(pte) })

Definition at line 427 of file pgtable.h.

#define __S000   PAGE_NONE

Definition at line 241 of file pgtable.h.

#define __S001   PAGE_READONLY

Definition at line 242 of file pgtable.h.

#define __S010   PAGE_WRITEONLY

Definition at line 243 of file pgtable.h.

#define __S011   PAGE_SHARED

Definition at line 244 of file pgtable.h.

#define __S100   PAGE_EXECREAD

Definition at line 245 of file pgtable.h.

#define __S101   PAGE_EXECREAD

Definition at line 246 of file pgtable.h.

#define __S110   PAGE_RWX

Definition at line 247 of file pgtable.h.

#define __S111   PAGE_RWX

Definition at line 248 of file pgtable.h.

#define __swp_entry (   type,
  offset 
)
Value:
((swp_entry_t) { (type) | \
((offset & 0x7) << 6) | \
((offset & ~0x7) << 8) })

Definition at line 424 of file pgtable.h.

#define __swp_entry_to_pte (   x)    ((pte_t) { (x).val })

Definition at line 428 of file pgtable.h.

#define __swp_offset (   x)
Value:
( (((x).val >> 6) & 0x7) | \
(((x).val >> 8) & ~0x7) )

Definition at line 422 of file pgtable.h.

#define __swp_type (   x)    ((x).val & 0x1f)

Definition at line 421 of file pgtable.h.

#define _PAGE_ACCESSED   (1 << xlate_pabit(_PAGE_ACCESSED_BIT))

Definition at line 175 of file pgtable.h.

#define _PAGE_ACCESSED_BIT   23 /* (0x100) Software: Page Accessed */

Definition at line 141 of file pgtable.h.

#define _PAGE_CHG_MASK   (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)

Definition at line 181 of file pgtable.h.

#define _PAGE_DIRTY   (1 << xlate_pabit(_PAGE_DIRTY_BIT))

Definition at line 172 of file pgtable.h.

#define _PAGE_DIRTY_BIT   26 /* (0x020) Page Dirty (D bit) */

Definition at line 137 of file pgtable.h.

#define _PAGE_DMB   (1 << xlate_pabit(_PAGE_DMB_BIT))

Definition at line 171 of file pgtable.h.

#define _PAGE_DMB_BIT   27 /* (0x010) Data Memory Break enable (B bit) */

Definition at line 136 of file pgtable.h.

#define _PAGE_EXEC   (1 << xlate_pabit(_PAGE_EXEC_BIT))

Definition at line 169 of file pgtable.h.

#define _PAGE_EXEC_BIT   29 /* (0x004) execute access allowed */

Definition at line 134 of file pgtable.h.

#define _PAGE_FILE   (1 << xlate_pabit(_PAGE_FILE_BIT))

Definition at line 178 of file pgtable.h.

#define _PAGE_FILE_BIT   _PAGE_DIRTY_BIT /* overload this bit */

Definition at line 138 of file pgtable.h.

#define _PAGE_GATEWAY   (1 << xlate_pabit(_PAGE_GATEWAY_BIT))

Definition at line 170 of file pgtable.h.

#define _PAGE_GATEWAY_BIT   28 /* (0x008) privilege promotion allowed */

Definition at line 135 of file pgtable.h.

#define _PAGE_KERNEL   (_PAGE_KERNEL_RO | _PAGE_WRITE)

Definition at line 185 of file pgtable.h.

#define _PAGE_KERNEL_EXEC   (_PAGE_KERNEL_RO | _PAGE_EXEC)

Definition at line 183 of file pgtable.h.

#define _PAGE_KERNEL_RO   (_PAGE_PRESENT | _PAGE_READ | _PAGE_DIRTY | _PAGE_ACCESSED)

Definition at line 182 of file pgtable.h.

#define _PAGE_KERNEL_RWX   (_PAGE_KERNEL_EXEC | _PAGE_WRITE)

Definition at line 184 of file pgtable.h.

#define _PAGE_NO_CACHE   (1 << xlate_pabit(_PAGE_NO_CACHE_BIT))

Definition at line 174 of file pgtable.h.

#define _PAGE_NO_CACHE_BIT   24 /* (0x080) Uncached Page (U bit) */

Definition at line 140 of file pgtable.h.

#define _PAGE_PRESENT   (1 << xlate_pabit(_PAGE_PRESENT_BIT))

Definition at line 176 of file pgtable.h.

#define _PAGE_PRESENT_BIT   22 /* (0x200) Software: translation valid */

Definition at line 142 of file pgtable.h.

#define _PAGE_READ   (1 << xlate_pabit(_PAGE_READ_BIT))

Definition at line 166 of file pgtable.h.

#define _PAGE_READ_BIT   31 /* (0x001) read access allowed */

Definition at line 132 of file pgtable.h.

#define _PAGE_REFTRAP   (1 << xlate_pabit(_PAGE_REFTRAP_BIT))

Definition at line 173 of file pgtable.h.

#define _PAGE_REFTRAP_BIT   25 /* (0x040) Page Ref. Trap enable (T bit) */

Definition at line 139 of file pgtable.h.

#define _PAGE_RW   (_PAGE_READ | _PAGE_WRITE)

Definition at line 168 of file pgtable.h.

#define _PAGE_SIZE_ENCODING_16K   1

Definition at line 482 of file pgtable.h.

#define _PAGE_SIZE_ENCODING_16M   6

Definition at line 487 of file pgtable.h.

#define _PAGE_SIZE_ENCODING_1M   4

Definition at line 485 of file pgtable.h.

#define _PAGE_SIZE_ENCODING_256K   3

Definition at line 484 of file pgtable.h.

#define _PAGE_SIZE_ENCODING_4K   0

Definition at line 481 of file pgtable.h.

#define _PAGE_SIZE_ENCODING_4M   5

Definition at line 486 of file pgtable.h.

#define _PAGE_SIZE_ENCODING_64K   2

Definition at line 483 of file pgtable.h.

#define _PAGE_SIZE_ENCODING_64M   7

Definition at line 488 of file pgtable.h.

#define _PAGE_TABLE   (_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED)

Definition at line 180 of file pgtable.h.

#define _PAGE_USER   (1 << xlate_pabit(_PAGE_USER_BIT))

Definition at line 177 of file pgtable.h.

#define _PAGE_USER_BIT   20 /* (0x800) Software: User accessible page */

Definition at line 144 of file pgtable.h.

#define _PAGE_WRITE   (1 << xlate_pabit(_PAGE_WRITE_BIT))

Definition at line 167 of file pgtable.h.

#define _PAGE_WRITE_BIT   30 /* (0x002) write access allowed */

Definition at line 133 of file pgtable.h.

#define _PxD_ATTACHED_BIT   30

Definition at line 193 of file pgtable.h.

#define _PxD_PRESENT_BIT   31

Definition at line 192 of file pgtable.h.

#define _PxD_VALID_BIT   29

Definition at line 194 of file pgtable.h.

#define BITS_PER_PGD   (BITS_PER_LONG - PGDIR_SHIFT)

Definition at line 95 of file pgtable.h.

#define BITS_PER_PMD   0

Definition at line 88 of file pgtable.h.

#define BITS_PER_PTE   (PAGE_SHIFT - BITS_PER_PTE_ENTRY)

Definition at line 76 of file pgtable.h.

#define FIRST_USER_ADDRESS   0

Definition at line 126 of file pgtable.h.

#define HAVE_ARCH_UNMAPPED_AREA

Definition at line 506 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 499 of file pgtable.h.

#define kern_addr_valid (   addr)    (1)

Definition at line 33 of file pgtable.h.

#define KERNEL_INITIAL_ORDER   24 /* 0 to 1<<24 = 16MB */

Definition at line 57 of file pgtable.h.

#define KERNEL_INITIAL_SIZE   (1 << KERNEL_INITIAL_ORDER)

Definition at line 58 of file pgtable.h.

#define MAX_ADDRBITS   (BITS_PER_LONG)

Definition at line 109 of file pgtable.h.

#define MAX_ADDRESS   (1UL << MAX_ADDRBITS)

Definition at line 110 of file pgtable.h.

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

Definition at line 360 of file pgtable.h.

#define PAGE_COPY   PAGE_EXECREAD

Definition at line 213 of file pgtable.h.

Definition at line 212 of file pgtable.h.

Definition at line 220 of file pgtable.h.

#define PAGE_KERNEL   __pgprot(_PAGE_KERNEL)

Definition at line 215 of file pgtable.h.

#define PAGE_KERNEL_EXEC   __pgprot(_PAGE_KERNEL_EXEC)

Definition at line 216 of file pgtable.h.

#define PAGE_KERNEL_RO   __pgprot(_PAGE_KERNEL_RO)

Definition at line 218 of file pgtable.h.

#define PAGE_KERNEL_RWX   __pgprot(_PAGE_KERNEL_RWX)

Definition at line 217 of file pgtable.h.

#define PAGE_KERNEL_UNC   __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)

Definition at line 219 of file pgtable.h.

#define PAGE_NONE   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)

Definition at line 205 of file pgtable.h.

#define PAGE_READONLY   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)

Definition at line 210 of file pgtable.h.

Definition at line 214 of file pgtable.h.

Definition at line 206 of file pgtable.h.

#define PAGE_WRITEONLY   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_WRITE | _PAGE_ACCESSED)

Definition at line 211 of file pgtable.h.

#define PFN_PTE_SHIFT   12

Definition at line 157 of file pgtable.h.

#define PG_dcache_dirty   PG_arch_1

Definition at line 415 of file pgtable.h.

#define pgd_address (   x)    ((unsigned long)(pgd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)

Definition at line 275 of file pgtable.h.

#define PGD_ALLOC_ORDER   PGD_ORDER

Definition at line 68 of file pgtable.h.

#define pgd_ERROR (   e)    printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))

Definition at line 53 of file pgtable.h.

#define pgd_flag (   x)    (pgd_val(x) & PxD_FLAG_MASK)

Definition at line 274 of file pgtable.h.

#define pgd_index (   address)    ((address) >> PGDIR_SHIFT)

Definition at line 383 of file pgtable.h.

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

Definition at line 386 of file pgtable.h.

#define pgd_offset_k (   address)    pgd_offset(&init_mm, address)

Definition at line 390 of file pgtable.h.

#define PGD_ORDER   1 /* Number of pages per pgd */

Definition at line 67 of file pgtable.h.

#define PGDIR_MASK   (~(PGDIR_SIZE-1))

Definition at line 100 of file pgtable.h.

#define PGDIR_SHIFT   (PMD_SHIFT + BITS_PER_PMD)

Definition at line 93 of file pgtable.h.

#define PGDIR_SIZE   (1UL << PGDIR_SHIFT)

Definition at line 99 of file pgtable.h.

#define pgoff_to_pte (   off)    ((pte_t) { ((off) << PTE_SHIFT) | _PAGE_FILE })

Definition at line 164 of file pgtable.h.

#define pgprot_noncached (   prot)    __pgprot(pgprot_val(prot) | _PAGE_NO_CACHE)

Definition at line 502 of file pgtable.h.

#define pgtable_cache_init (   void)    do { } while (0)

Definition at line 80 of file pgtable.h.

#define PLD_SHIFT   PAGE_SHIFT

Definition at line 74 of file pgtable.h.

#define PLD_SIZE   PAGE_SIZE

Definition at line 75 of file pgtable.h.

#define pmd_address (   x)    ((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)

Definition at line 273 of file pgtable.h.

#define pmd_bad (   x)    (!(pmd_flag(x) & PxD_FLAG_VALID))

Definition at line 284 of file pgtable.h.

#define pmd_ERROR (   e)    printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, (unsigned long)pmd_val(e))

Definition at line 51 of file pgtable.h.

#define pmd_flag (   x)    (pmd_val(x) & PxD_FLAG_MASK)

Definition at line 272 of file pgtable.h.

#define PMD_MASK   (~(PMD_SIZE-1))

Definition at line 84 of file pgtable.h.

#define pmd_none (   x)    (!pmd_val(x))

Definition at line 282 of file pgtable.h.

#define pmd_offset (   dir,
  addr 
)    ((pmd_t *) dir)

Definition at line 398 of file pgtable.h.

#define pmd_page (   pmd)    virt_to_page((void *)__pmd_page(pmd))

Definition at line 381 of file pgtable.h.

#define pmd_page_vaddr (   pmd)    ((unsigned long) __va(pmd_address(pmd)))

Definition at line 378 of file pgtable.h.

#define pmd_present (   x)    (pmd_flag(x) & PxD_FLAG_PRESENT)

Definition at line 285 of file pgtable.h.

#define PMD_SHIFT   (PLD_SHIFT + BITS_PER_PTE)

Definition at line 82 of file pgtable.h.

#define PMD_SIZE   (1UL << PMD_SHIFT)

Definition at line 83 of file pgtable.h.

#define PT_INITIAL   (1 << (KERNEL_INITIAL_ORDER - PMD_SHIFT))

Definition at line 117 of file pgtable.h.

#define PT_NLEVELS   2

Definition at line 66 of file pgtable.h.

#define pte_clear (   mm,
  addr,
  xp 
)    do { pte_val(*(xp)) = 0; } while (0)

Definition at line 270 of file pgtable.h.

#define pte_ERROR (   e)    printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))

Definition at line 49 of file pgtable.h.

#define PTE_FILE_MAX_BITS   (BITS_PER_LONG - PTE_SHIFT)

Definition at line 161 of file pgtable.h.

#define pte_index (   address)    (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1))

Definition at line 402 of file pgtable.h.

#define pte_none (   x)    (pte_val(x) == 0)

Definition at line 268 of file pgtable.h.

#define pte_offset_kernel (   pmd,
  address 
)    ((pte_t *) pmd_page_vaddr(*(pmd)) + pte_index(address))

Definition at line 403 of file pgtable.h.

#define pte_offset_map (   pmd,
  address 
)    pte_offset_kernel(pmd, address)

Definition at line 405 of file pgtable.h.

#define pte_page (   pte)    (pfn_to_page(pte_pfn(pte)))

Definition at line 376 of file pgtable.h.

#define pte_pfn (   x)    (pte_val(x) >> PFN_PTE_SHIFT)

Definition at line 374 of file pgtable.h.

#define pte_present (   x)    (pte_val(x) & _PAGE_PRESENT)

Definition at line 269 of file pgtable.h.

#define pte_same (   A,
  B 
)    (pte_val(A) == pte_val(B))

Definition at line 475 of file pgtable.h.

#define PTE_SHIFT   xlate_pabit(_PAGE_USER_BIT)

Definition at line 154 of file pgtable.h.

#define pte_to_pgoff (   pte)    (pte_val(pte) >> PTE_SHIFT)

Definition at line 163 of file pgtable.h.

#define pte_unmap (   pte)    do { } while (0)

Definition at line 408 of file pgtable.h.

#define pte_unmap (   pte)    do { } while (0)

Definition at line 408 of file pgtable.h.

#define pte_unmap_nested (   pte)    do { } while (0)

Definition at line 409 of file pgtable.h.

#define PTRS_PER_PGD   (1UL << BITS_PER_PGD)

Definition at line 101 of file pgtable.h.

#define PTRS_PER_PMD   (1UL << BITS_PER_PMD)

Definition at line 90 of file pgtable.h.

#define PTRS_PER_PTE   (1UL << BITS_PER_PTE)

Definition at line 77 of file pgtable.h.

#define PxD_FLAG_ATTACHED   (1 << xlate_pabit(_PxD_ATTACHED_BIT))

Definition at line 197 of file pgtable.h.

#define PxD_FLAG_MASK   (0xf)

Definition at line 199 of file pgtable.h.

#define PxD_FLAG_PRESENT   (1 << xlate_pabit(_PxD_PRESENT_BIT))

Definition at line 196 of file pgtable.h.

#define PxD_FLAG_SHIFT   (4)

Definition at line 200 of file pgtable.h.

#define PxD_FLAG_VALID   (1 << xlate_pabit(_PxD_VALID_BIT))

Definition at line 198 of file pgtable.h.

#define PxD_VALUE_SHIFT   (8) /* (PAGE_SHIFT-PxD_FLAG_SHIFT) */

Definition at line 201 of file pgtable.h.

#define set_pte (   pteptr,
  pteval 
)
Value:
do{ \
*(pteptr) = (pteval); \
} while(0)

Definition at line 39 of file pgtable.h.

#define set_pte_at (   mm,
  addr,
  ptep,
  pteval 
)    set_pte(ptep,pteval)

Definition at line 43 of file pgtable.h.

#define SPACEID_SHIFT   0

Definition at line 111 of file pgtable.h.

#define USER_PTRS_PER_PGD   PTRS_PER_PGD

Definition at line 102 of file pgtable.h.

#define xlate_pabit (   x)    (31 - x)

Definition at line 149 of file pgtable.h.

#define ZERO_PAGE (   vaddr)    (virt_to_page(empty_zero_page))

Definition at line 266 of file pgtable.h.

Function Documentation

void paging_init ( void  )

paging_init - setup page tables

paging_init() sets up the page tables for each node of the system and frees the bootmem allocator memory for general use.

Definition at line 238 of file init.c.

void update_mmu_cache ( struct vm_area_struct ,
unsigned  long,
pte_t  
)
inline

Definition at line 330 of file pgtable.h.

Variable Documentation

unsigned long* empty_zero_page

Definition at line 42 of file mmu.c.

spinlock_t pa_dbit_lock
pte_t pg0[]
pgd_t swapper_pg_dir[]

Definition at line 36 of file init.c.