path: root/arch/alpha/mm
diff options
authorDave Hansen <>2006-03-27 01:16:04 -0800
committerLinus Torvalds <>2006-03-27 08:44:48 -0800
commit22a9835c350782a5c3257343713932af3ac92ee0 (patch)
tree9688e99426e8aa85a468cc724ffee32c6a8abcad /arch/alpha/mm
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 <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'arch/alpha/mm')
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index 6d5251254f68..bf6b65c81bef 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -13,6 +13,7 @@
#include <linux/bootmem.h>
#include <linux/swap.h>
#include <linux/initrd.h>
+#include <linux/pfn.h>
#include <asm/hwrpb.h>
#include <asm/pgalloc.h>
@@ -27,9 +28,6 @@ bootmem_data_t node_bdata[MAX_NUMNODES];
#define DBGDCONT(args...)
-#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
-#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
-#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
#define for_each_mem_cluster(memdesc, cluster, i) \
for ((cluster) = (memdesc)->cluster, (i) = 0; \
(i) < (memdesc)->numclusters; (i)++, (cluster)++)