x86: unify pmd_pfn

Impact: cleanup

Unify pmd_pfn.  Unfortunately it can't be demacroed because it has a
cyclic dependency on linux/mm.h:page_to_nid().
Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

arch/x86/include/asm/pgtable.h

@@ -489,6 +489,15 @@ static inline unsigned pmd_index(unsigned long address)
 	return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
 }
 
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ *
+ * (Currently stuck as a macro because of indirect forward reference
+ * to linux/mm.h:page_to_nid())
+ */
+#define mk_pte(page, pgprot)   pfn_pte(page_to_pfn(page), (pgprot))
+
 #if PAGETABLE_LEVELS > 2
 static inline int pud_present(pud_t pud)
 {

arch/x86/include/asm/pgtable_32.h

@@ -95,13 +95,6 @@ extern unsigned long pg0[];
 # include <asm/pgtable-2level.h>
 #endif
 
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- */
-#define mk_pte(page, pgprot)	pfn_pte(page_to_pfn(page), (pgprot))
-
-
 static inline int pud_large(pud_t pud) { return 0; }
 
 /*

arch/x86/include/asm/pgtable_64.h

@@ -198,9 +198,6 @@ static inline int pud_large(pud_t pte)
 
 /* PTE - Level 1 access. */
 
-/* page, protection -> pte */
-#define mk_pte(page, pgprot)	pfn_pte(page_to_pfn((page)), (pgprot))
-
 #define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
 #define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \
 					 pte_index((address)))