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authorDave Hansen <haveblue@us.ibm.com>2006-03-27 04:16:04 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-27 11:44:48 -0500
commit22a9835c350782a5c3257343713932af3ac92ee0 (patch)
tree9688e99426e8aa85a468cc724ffee32c6a8abcad /include/asm-m32r/setup.h
parent95144c788dc01b6a0ff2c9c2222e37ffdab358b8 (diff)
[PATCH] unify PFN_* macros
Just about every architecture defines some macros to do operations on pfns. They're all virtually identical. This patch consolidates all of them. One minor glitch is that at least i386 uses them in a very skeletal header file. To keep away from #include dependency hell, I stuck the new definitions in a new, isolated header. Of all of the implementations, sh64 is the only one that varied by a bit. It used some masks to ensure that any sign-extension got ripped away before the arithmetic is done. This has been posted to that sh64 maintainers and the development list. Compiles on x86, x86_64, ia64 and ppc64. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-m32r/setup.h')
-rw-r--r--include/asm-m32r/setup.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/include/asm-m32r/setup.h b/include/asm-m32r/setup.h
index 5f028dc26a9b..52f4fa29abfc 100644
--- a/include/asm-m32r/setup.h
+++ b/include/asm-m32r/setup.h
@@ -24,10 +24,6 @@
24#define RAMDISK_PROMPT_FLAG (0x8000) 24#define RAMDISK_PROMPT_FLAG (0x8000)
25#define RAMDISK_LOAD_FLAG (0x4000) 25#define RAMDISK_LOAD_FLAG (0x4000)
26 26
27#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
28#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
29#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
30
31extern unsigned long memory_start; 27extern unsigned long memory_start;
32extern unsigned long memory_end; 28extern unsigned long memory_end;
33 29