[PATCH] unify pfn_to_page: alpha pfn_to_page

Alpha can use generic funcs.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/include/asm-alpha/mmzone.h b/include/asm-alpha/mmzone.h
index a011ef4..c900439 100644 (file)
--- a/include/asm-alpha/mmzone.h
+++ b/include/asm-alpha/mmzone.h
@@ -59,9 +59,6 @@ PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
 #define kvaddr_to_nid(kaddr)   pa_to_nid(__pa(kaddr))
 #define node_start_pfn(nid)    (NODE_DATA(nid)->node_start_pfn)
 
-#define local_mapnr(kvaddr) \
-      ((__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)))
-
 /*
  * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory
  * and returns the kaddr corresponding to first physical page in the
@@ -104,19 +101,8 @@ PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
        __xx;                                                           \
 })
 
-#define pfn_to_page(pfn)                                               \
-({                                                                     \
-       unsigned long kaddr = (unsigned long)__va((pfn) << PAGE_SHIFT); \
-       (NODE_DATA(kvaddr_to_nid(kaddr))->node_mem_map + local_mapnr(kaddr));   \
-})
-
-#define page_to_pfn(page)                                              \
-       ((page) - page_zone(page)->zone_mem_map +                       \
-        (page_zone(page)->zone_start_pfn))
-
 #define page_to_pa(page)                                               \
-       ((( (page) - page_zone(page)->zone_mem_map )                    \
-       + page_zone(page)->zone_start_pfn) << PAGE_SHIFT)
+       (page_to_pfn(page) << PAGE_SHIFT)
 
 #define pfn_to_nid(pfn)                pa_to_nid(((u64)(pfn) << PAGE_SHIFT))
 #define pfn_valid(pfn)                                                 \

diff --git a/include/asm-alpha/page.h b/include/asm-alpha/page.h
index fa0b41b..61bcf70 100644 (file)
--- a/include/asm-alpha/page.h
+++ b/include/asm-alpha/page.h
@@ -85,8 +85,6 @@ typedef unsigned long pgprot_t;
 #define __pa(x)                        ((unsigned long) (x) - PAGE_OFFSET)
 #define __va(x)                        ((void *)((unsigned long) (x) + PAGE_OFFSET))
 #ifndef CONFIG_DISCONTIGMEM
-#define pfn_to_page(pfn)       (mem_map + (pfn))
-#define page_to_pfn(page)      ((unsigned long)((page) - mem_map))
 #define virt_to_page(kaddr)    pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define pfn_valid(pfn)         ((pfn) < max_mapnr)
@@ -95,9 +93,9 @@ typedef unsigned long pgprot_t;
 
 #define VM_DATA_DEFAULT_FLAGS          (VM_READ | VM_WRITE | VM_EXEC | \
                                         VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-
 #endif /* __KERNEL__ */
 
+#include <asm-generic/memory_model.h>
 #include <asm-generic/page.h>
 
 #endif /* _ALPHA_PAGE_H */