gistfile1.txt

pi@raspberrypi ~/qpuinfo $ git log -1 -p
commit d3d4745808231202a19365458e283d730e3d1a2e
Author: Terminus <i.can.speak.c.and.basic@gmail.com>
Date:   Sun Feb 8 05:06:01 2015 +0900

    change to point physical address, not bus address

    Special thanks to @KOBA789 !

diff --git a/mapmem.c b/mapmem.c
index 80b5027..9599162 100644
--- a/mapmem.c
+++ b/mapmem.c
@@ -16,7 +16,7 @@
 #endif /* DEVMEM */

 #ifndef V3D_OFFSET
-#define V3D_OFFSET 0x7ec00000
+#define V3D_OFFSET 0x20c00000
 #endif /* V3D_OFFSET */

 #ifndef V3D_LENGTH