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[PATCH] unify pfn_to_page: m32r pfn_to_page

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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>
This commit is contained in:
KAMEZAWA Hiroyuki 2006-03-27 01:15:42 -08:00 committed by Linus Torvalds
parent dd6cc7631c
commit 7126cffe74
2 changed files with 2 additions and 17 deletions
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14
include/asm-m32r/mmzone.h
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@ -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

5
include/asm-m32r/page.h
View File

@ -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 */