[PATCH] unify pfn_to_page take 2 [20/25] sh64 funcs

[KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>]

sh64 can use generic funcs.

Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

Index: test-layout-free-zone/include/asm-sh64/page.h
===================================================================
--- test-layout-free-zone.orig/include/asm-sh64/page.h
+++ test-layout-free-zone/include/asm-sh64/page.h
@@ -105,9 +105,7 @@ typedef struct { unsigned long pgprot; }

 /* PFN start number, because of __MEMORY_START */
 #define PFN_START		(__MEMORY_START >> PAGE_SHIFT)
-
-#define pfn_to_page(pfn)	(mem_map + (pfn) - PFN_START)
-#define page_to_pfn(page)	((unsigned long)((page) - mem_map) + PFN_START)
+#define ARCH_PFN_OFFSET		(PFN_START)
 #define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 #define pfn_valid(pfn)		(((pfn) - PFN_START) < max_mapnr)
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)

-
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