1 files changed, 5 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 910194e9a1e2..a5e9a7d494d8 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -46,6 +46,11 @@
 #include <asm/asm-compat.h>
 #include <asm/synch.h>
 
+/* PPC bit number conversion */
+#define PPC_BITLSHIFT(be)       (BITS_PER_LONG - 1 - (be))
+#define PPC_BIT(bit)            (1UL << PPC_BITLSHIFT(bit))
+#define PPC_BITMASK(bs, be)     ((PPC_BIT(bs) - PPC_BIT(be)) | PPC_BIT(bs))
+
 /*
  * clear_bit doesn't imply a memory barrier
  */