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x86: Split pgtable_64.h into pgtable_64_types.h and pgtable_64.h
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Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
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Jeremy Fitzhardinge authored and Jeremy Fitzhardinge committed Feb 11, 2009
1 parent f402a65 commit fb35514
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Showing 2 changed files with 48 additions and 46 deletions.
48 changes: 2 additions & 46 deletions arch/x86/include/asm/pgtable_64.h
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,8 @@
#define _ASM_X86_PGTABLE_64_H

#include <linux/const.h>
#include <asm/pgtable_64_types.h>

#ifndef __ASSEMBLY__

/*
Expand All @@ -25,32 +27,6 @@ extern void paging_init(void);

#endif /* !__ASSEMBLY__ */

#define SHARED_KERNEL_PMD 0

/*
* PGDIR_SHIFT determines what a top-level page table entry can map
*/
#define PGDIR_SHIFT 39
#define PTRS_PER_PGD 512

/*
* 3rd level page
*/
#define PUD_SHIFT 30
#define PTRS_PER_PUD 512

/*
* PMD_SHIFT determines the size of the area a middle-level
* page table can map
*/
#define PMD_SHIFT 21
#define PTRS_PER_PMD 512

/*
* entries per page directory level
*/
#define PTRS_PER_PTE 512

#ifndef __ASSEMBLY__

#define pte_ERROR(e) \
Expand Down Expand Up @@ -130,26 +106,6 @@ static inline void native_pgd_clear(pgd_t *pgd)
native_set_pgd(pgd, native_make_pgd(0));
}

#endif /* !__ASSEMBLY__ */

#define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE - 1))
#define PUD_SIZE (_AC(1, UL) << PUD_SHIFT)
#define PUD_MASK (~(PUD_SIZE - 1))
#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))


#define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL)
#define VMALLOC_START _AC(0xffffc20000000000, UL)
#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
#define VMEMMAP_START _AC(0xffffe20000000000, UL)
#define MODULES_VADDR _AC(0xffffffffa0000000, UL)
#define MODULES_END _AC(0xffffffffff000000, UL)
#define MODULES_LEN (MODULES_END - MODULES_VADDR)

#ifndef __ASSEMBLY__

/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.
Expand Down
46 changes: 46 additions & 0 deletions arch/x86/include/asm/pgtable_64_types.h
Original file line number Diff line number Diff line change
@@ -0,0 +1,46 @@
#ifndef _ASM_X86_PGTABLE_64_DEFS_H
#define _ASM_X86_PGTABLE_64_DEFS_H

#define SHARED_KERNEL_PMD 0

/*
* PGDIR_SHIFT determines what a top-level page table entry can map
*/
#define PGDIR_SHIFT 39
#define PTRS_PER_PGD 512

/*
* 3rd level page
*/
#define PUD_SHIFT 30
#define PTRS_PER_PUD 512

/*
* PMD_SHIFT determines the size of the area a middle-level
* page table can map
*/
#define PMD_SHIFT 21
#define PTRS_PER_PMD 512

/*
* entries per page directory level
*/
#define PTRS_PER_PTE 512

#define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE - 1))
#define PUD_SIZE (_AC(1, UL) << PUD_SHIFT)
#define PUD_MASK (~(PUD_SIZE - 1))
#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))


#define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL)
#define VMALLOC_START _AC(0xffffc20000000000, UL)
#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
#define VMEMMAP_START _AC(0xffffe20000000000, UL)
#define MODULES_VADDR _AC(0xffffffffa0000000, UL)
#define MODULES_END _AC(0xffffffffff000000, UL)
#define MODULES_LEN (MODULES_END - MODULES_VADDR)

#endif /* _ASM_X86_PGTABLE_64_DEFS_H */

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