ia64: Update pte macros for new pfn-based versions.

include/asm-ia64/page.h

@@ -68,20 +68,27 @@ do {						\
  */
 #define MAP_NR_DENSE(addr)	(((unsigned long) (addr) - PAGE_OFFSET) >> PAGE_SHIFT)
 
+#define page_to_pfn(page)	((unsigned long)((page) - mem_map))
+#define pfn_valid(pfn)		((pfn) < max_mapnr)
+#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+
 #ifdef CONFIG_IA64_GENERIC
 # include <asm/machvec.h>
 # define virt_to_page(kaddr)	(mem_map + platform_map_nr(kaddr))
-# define page_to_phys(page)	((page - mem_map) << PAGE_SHIFT)
+# define page_to_pfn(page)	((unsigned long) (page - mem_map))
+# define pfn_to_page(pfn)	(mem_map + (pfn))
 #elif defined (CONFIG_IA64_SGI_SN1)
 # ifndef CONFIG_DISCONTIGMEM
 #  define virt_to_page(kaddr)	(mem_map + MAP_NR_DENSE(kaddr))
-#  define page_to_phys(page)	XXX fix me
+#  define page_to_pfn(page)	XXX fix me
+#  define pfn_to_page(pfn)	XXX fix me
 # endif
 #else
 # define virt_to_page(kaddr)	(mem_map + MAP_NR_DENSE(kaddr))
-# define page_to_phys(page)	((page - mem_map) << PAGE_SHIFT)
+# define page_to_pfn(page)	((unsigned long) (page - mem_map))
+# define pfn_to_page(pfn)	(mem_map + (pfn))
 #endif
-#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)
 
 typedef union ia64_va {
 	struct {
@@ -105,7 +112,7 @@ typedef union ia64_va {
 #define REGION_OFFSET(x)	({ia64_va _v; _v.l = (long) (x); _v.f.off;})
 
 #define REGION_SIZE		REGION_NUMBER(1)
-#define REGION_KERNEL	7
+#define REGION_KERNEL		7
 
 #define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; } while (0)
 #define PAGE_BUG(page) do { BUG(); } while (0)

include/asm-ia64/pgtable.h

@@ -207,20 +207,14 @@ ia64_phys_addr_valid (unsigned long addr)
 #define VMALLOC_END		(0xa000000000000000 + (1UL << (4*PAGE_SHIFT - 9)))
 
 /*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
+ * Conversion functions: convert page frame number (pfn) and a protection value to a page
+ * table entry (pte).
  */
-#define mk_pte(page,pgprot)						\
-({									\
-	pte_t __pte;							\
-									\
-	pte_val(__pte) = (page_to_phys(page)) | pgprot_val(pgprot);	\
-	__pte;								\
-})
-
-/* This takes a physical page address that is used by the remapping functions */
-#define mk_pte_phys(physpage, pgprot) \
-({ pte_t __pte; pte_val(__pte) = physpage + pgprot_val(pgprot); __pte; })
+#define pfn_pte(pfn, pgprot) \
+({ pte_t __pte; pte_val(__pte) = ((pfn) << PAGE_SHIFT) | pgprot_val(pgprot); __pte; })
+
+/* Extract pfn from pte.  */
+#define pte_pfn(_pte)		((pte_val(_pte) & _PFN_MASK) >> PAGE_SHIFT)
 
 #define pte_modify(_pte, newprot) \
 	(__pte((pte_val(_pte) & _PAGE_CHG_MASK) | pgprot_val(newprot)))