[PATCH] unify pfn_to_page: m32r pfn_to_page

m32r can use generic funcs.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hirokazu Takata <takata.hirokazu@renesas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/include/asm-m32r/mmzone.h b/include/asm-m32r/mmzone.h
index adc7970..9f3b5ac 100644 (file)
--- a/include/asm-m32r/mmzone.h
+++ b/include/asm-m32r/mmzone.h
@@ -21,20 +21,6 @@ extern struct pglist_data *node_data[];
        __pgdat->node_start_pfn + __pgdat->node_spanned_pages - 1;      \
 })
 
-#define pfn_to_page(pfn)                                               \
-({                                                                     \
-       unsigned long __pfn = pfn;                                      \
-       int __node  = pfn_to_nid(__pfn);                                \
-       &NODE_DATA(__node)->node_mem_map[node_localnr(__pfn,__node)];   \
-})
-
-#define page_to_pfn(pg)                                                        \
-({                                                                     \
-       struct page *__page = pg;                                       \
-       struct zone *__zone = page_zone(__page);                        \
-       (unsigned long)(__page - __zone->zone_mem_map)                  \
-               + __zone->zone_start_pfn;                               \
-})
 #define pmd_page(pmd)          (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
 /*
  * pfn_valid should be made as fast as possible, and the current definition

diff --git a/include/asm-m32r/page.h b/include/asm-m32r/page.h
index 4ab5788..9ddbc08 100644 (file)
--- a/include/asm-m32r/page.h
+++ b/include/asm-m32r/page.h
@@ -76,9 +76,7 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #ifndef CONFIG_DISCONTIGMEM
 #define PFN_BASE               (CONFIG_MEMORY_START >> PAGE_SHIFT)
-#define pfn_to_page(pfn)       (mem_map + ((pfn) - PFN_BASE))
-#define page_to_pfn(page)      \
-       ((unsigned long)((page) - mem_map) + PFN_BASE)
+#define ARCH_PFN_OFFSET                PFN_BASE
 #define pfn_valid(pfn)         (((pfn) - PFN_BASE) < max_mapnr)
 #endif  /* !CONFIG_DISCONTIGMEM */
 
@@ -92,6 +90,7 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #endif /* __KERNEL__ */
 
+#include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
 #endif /* _ASM_M32R_PAGE_H */