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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2006-03-27 01:15:53 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-27 08:44:47 -0800
commit0ecd702bcb924d5fb7f687e09986f688336ac896 (patch)
tree50b9caabc044fb9780cc2a794aabb9d3a7fbf029 /include
parent655a0443470a73d5dc36e974a241e8db59bb1ccb (diff)
[PATCH] unify pfn_to_page: ia64 pfn_to_page
ia64 has special config CONFIG_VIRTUAL_MEM_MAP. CONFIG_DISCONTIGMEM=y && CONFIG_VIRTUAL_MEM_MAP!=y is bug ? Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-ia64/page.h18
1 files changed, 13 insertions, 5 deletions
diff --git a/include/asm-ia64/page.h b/include/asm-ia64/page.h
index 6e9aa23250c..2087825eefa 100644
--- a/include/asm-ia64/page.h
+++ b/include/asm-ia64/page.h
@@ -106,17 +106,25 @@ extern int ia64_pfn_valid (unsigned long pfn);
# define ia64_pfn_valid(pfn) 1
#endif
+#ifdef CONFIG_VIRTUAL_MEM_MAP
+extern struct page *vmem_map;
+#ifdef CONFIG_DISCONTIGMEM
+# define page_to_pfn(page) ((unsigned long) (page - vmem_map))
+# define pfn_to_page(pfn) (vmem_map + (pfn))
+#endif
+#endif
+
+#if defined(CONFIG_FLATMEM) || defined(CONFIG_SPARSEMEM)
+/* FLATMEM always configures mem_map (mem_map = vmem_map if necessary) */
+#include <asm-generic/memory_model.h>
+#endif
+
#ifdef CONFIG_FLATMEM
# define pfn_valid(pfn) (((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
-# define page_to_pfn(page) ((unsigned long) (page - mem_map))
-# define pfn_to_page(pfn) (mem_map + (pfn))
#elif defined(CONFIG_DISCONTIGMEM)
-extern struct page *vmem_map;
extern unsigned long min_low_pfn;
extern unsigned long max_low_pfn;
# define pfn_valid(pfn) (((pfn) >= min_low_pfn) && ((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))
-# define page_to_pfn(page) ((unsigned long) (page - vmem_map))
-# define pfn_to_page(pfn) (vmem_map + (pfn))
#endif
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)