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x86: unify pmd_pfn

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Impact: cleanup

Unify pmd_pfn.  Unfortunately it can't be demacroed because it has a
cyclic dependency on linux/mm.h:page_to_nid().

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-05 11:31:05 -08:00
parent 3180fba0ee
commit 97e2817d34
3 changed files with 9 additions and 10 deletions
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9
arch/x86/include/asm/pgtable.h
View File

@ -489,6 +489,15 @@ static inline unsigned pmd_index(unsigned long address)
return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
}
/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.
*
* (Currently stuck as a macro because of indirect forward reference
* to linux/mm.h:page_to_nid())
*/
#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
#if PAGETABLE_LEVELS > 2
static inline int pud_present(pud_t pud)
{

7
arch/x86/include/asm/pgtable_32.h
View File

@ -95,13 +95,6 @@ extern unsigned long pg0[];
# include <asm/pgtable-2level.h>
#endif
/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.
*/
#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
static inline int pud_large(pud_t pud) { return 0; }
/*

3
arch/x86/include/asm/pgtable_64.h
View File

@ -198,9 +198,6 @@ static inline int pud_large(pud_t pte)
/* PTE - Level 1 access. */
/* page, protection -> pte */
#define mk_pte(page, pgprot) pfn_pte(page_to_pfn((page)), (pgprot))
#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \
pte_index((address)))