x86: unify pud_large

Impact: cleanup

Unify and demacro pud_large.
Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

arch/x86/include/asm/pgtable.h

@@ -540,6 +540,12 @@ static inline unsigned long pmd_pfn(pmd_t pmd)
 {
 	return (pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT;
 }
+
+static inline int pud_large(pud_t pud)
+{
+	return (pud_val(pud) & (_PAGE_PSE | _PAGE_PRESENT)) ==
+		(_PAGE_PSE | _PAGE_PRESENT);
+}
 #endif	/* PAGETABLE_LEVELS > 2 */
 
 #if PAGETABLE_LEVELS > 3

arch/x86/include/asm/pgtable_32.h

@@ -95,8 +95,6 @@ extern unsigned long pg0[];
 # include <asm/pgtable-2level.h>
 #endif
 
-static inline int pud_large(pud_t pud) { return 0; }
-
 #if defined(CONFIG_HIGHPTE)
 #define pte_offset_map(dir, address)					\
 	((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), KM_PTE0) +		\

arch/x86/include/asm/pgtable_64.h

@@ -184,12 +184,6 @@ static inline int pgd_large(pgd_t pgd) { return 0; }
 
 /* PUD - Level3 access */
 
-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 pte_to_pgoff(pte) ((pte_val((pte)) & PHYSICAL_PAGE_MASK) >> PAGE_SHIFT)
 #define pgoff_to_pte(off) ((pte_t) { .pte = ((off) << PAGE_SHIFT) |	\