Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH] [4/8] Add pgtable accessor functions for GB pages | Date | Sat, 19 Jan 2008 07:48:32 +0100 (CET) |
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Signed-off-by: Andi Kleen <ak@suse.de>
--- include/asm-x86/pgtable_64.h | 6 ++++++ 1 file changed, 6 insertions(+)
Index: linux/include/asm-x86/pgtable_64.h =================================================================== --- linux.orig/include/asm-x86/pgtable_64.h +++ linux/include/asm-x86/pgtable_64.h @@ -208,6 +208,12 @@ static inline unsigned long pmd_bad(pmd_ #define pud_offset(pgd, address) ((pud_t *) pgd_page_vaddr(*(pgd)) + pud_index(address)) #define pud_present(pud) (pud_val(pud) & _PAGE_PRESENT) +static inline int pud_large(pud_t pte) +{ + return (pud_val(pte) & (_PAGE_PSE|_PAGE_PRESENT)) == + (_PAGE_PSE|_PAGE_PRESENT); +} + /* PMD - Level 2 access */ #define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PTE_MASK)) #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
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