aboutsummaryrefslogtreecommitdiffstats
path: root/src/include/ipxe/io.h
diff options
context:
space:
mode:
authorMichael Brown <mcb30@ipxe.org>2014-07-26 15:31:08 +0100
committerMichael Brown <mcb30@ipxe.org>2014-07-28 16:58:35 +0100
commitec30c856a80270578a90528ecffdaf4eaf148503 (patch)
tree91968794eeaba657fbbccfa3b5d30c753e5da080 /src/include/ipxe/io.h
parent6153c09c41034250408f3596555fcaae715da46c (diff)
downloadipxe-ec30c856a80270578a90528ecffdaf4eaf148503.tar.gz
[ioapi] Centralise notion of PAGE_SIZE
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include/ipxe/io.h')
-rw-r--r--src/include/ipxe/io.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/include/ipxe/io.h b/src/include/ipxe/io.h
index b8b8aa313..29ccfd1fa 100644
--- a/src/include/ipxe/io.h
+++ b/src/include/ipxe/io.h
@@ -23,6 +23,12 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <config/ioapi.h>
#include <ipxe/uaccess.h>
+/** Page size */
+#define PAGE_SIZE ( 1 << PAGE_SHIFT )
+
+/** Page mask */
+#define PAGE_MASK ( PAGE_SIZE - 1 )
+
/**
* Calculate static inline I/O API function name
*