x86: unify pmd_pfn
Impact: cleanup
Unify and demacro pmd_pfn.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index a7dbb05..532144c 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -510,6 +510,11 @@
{
return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address);
}
+
+static inline unsigned long pmd_pfn(pmd_t pmd)
+{
+ return (pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT;
+}
#endif /* PAGETABLE_LEVELS > 2 */
#if PAGETABLE_LEVELS > 3