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Date: Sat, 19 Jan 2008 07:48:32 +0100 (CET) From: Andi Kleen <ak@...e.de> To: mingo@...e.hu, tglx@...utronix.de, linux-kernel@...r.kernel.org Subject: [PATCH] [4/8] Add pgtable accessor functions for GB pages Signed-off-by: Andi Kleen <ak@...e.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)) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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