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authorDave Airlie <airlied@redhat.com>2012-03-15 10:24:32 +0000
committerDave Airlie <airlied@redhat.com>2012-03-15 10:24:32 +0000
commit8229c885fe361e521ac64de36b16011e54a30de0 (patch)
tree572e5d34b16713ddef9e803308c6f72014aff01b /include/linux/bitops.h
parentc3c50e8b651887bcefcc13beb3739c00b2379b5c (diff)
parentfde7d9049e55ab85a390be7f415d74c9f62dd0f9 (diff)
drm: Merge tag 'v3.3-rc7' into drm-core-next
Merge the fixes so far into core-next, needed to test intel driver. Conflicts: drivers/gpu/drm/i915/intel_ringbuffer.c
Diffstat (limited to 'include/linux/bitops.h')
-rw-r--r--include/linux/bitops.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 3c1063acb2ab..94300fe46cce 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -56,6 +56,26 @@ static inline unsigned long hweight_long(unsigned long w)
}
/**
+ * rol64 - rotate a 64-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u64 rol64(__u64 word, unsigned int shift)
+{
+ return (word << shift) | (word >> (64 - shift));
+}
+
+/**
+ * ror64 - rotate a 64-bit value right
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u64 ror64(__u64 word, unsigned int shift)
+{
+ return (word >> shift) | (word << (64 - shift));
+}
+
+/**
* rol32 - rotate a 32-bit value left
* @word: value to rotate
* @shift: bits to roll