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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2006-03-27 01:15:53 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-27 08:44:47 -0800 |
| commit | 0ecd702bcb924d5fb7f687e09986f688336ac896 (patch) | |
| tree | 50b9caabc044fb9780cc2a794aabb9d3a7fbf029 /include/asm-ia64/page.h | |
| parent | 655a0443470a73d5dc36e974a241e8db59bb1ccb (diff) | |
| download | linux-0ecd702bcb924d5fb7f687e09986f688336ac896.tar.bz2 | |
[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/asm-ia64/page.h')
| -rw-r--r-- | include/asm-ia64/page.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/include/asm-ia64/page.h b/include/asm-ia64/page.h index 6e9aa23250c4..2087825eefa4 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) |