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authorAndi Kleen <ak@suse.de>2008-02-04 16:48:09 +0100
committerIngo Molnar <mingo@elte.hu>2008-02-04 16:48:09 +0100
commit61e19a347ad4bcdda615ef77ef9c3e656e254f3d (patch)
tree483fe902525b3a9aeab3689434eabb659d4de738 /include/asm-x86/pgtable_64.h
parentfbff3c21aff29ffdfa46b50946696689d3e70a48 (diff)
x86: add pgtable accessor functions for gbpages
Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/pgtable_64.h')
-rw-r--r--include/asm-x86/pgtable_64.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 5c86cff3ee79..bd4740a60f29 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -198,6 +198,12 @@ static inline unsigned long pmd_bad(pmd_t 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))