Merge tag 'soc-ep93xx-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

[linux-2.6-block.git] / include / linux / wordpart.h

diff --git a/include/linux/wordpart.h b/include/linux/wordpart.h
index f6f8f83b15b04391ba47768b296361a0783d9712..5a7b97bb7c956985162990ff9506789281bf1c60 100644 (file)
--- a/include/linux/wordpart.h
+++ b/include/linux/wordpart.h
@@ -39,4 +39,19 @@
  */
 #define REPEAT_BYTE(x) ((~0ul / 0xff) * (x))
 
+/**
+ * REPEAT_BYTE_U32 - repeat the value @x multiple times as a u32 value
+ * @x: value to repeat
+ *
+ * NOTE: @x is not checked for > 0xff; larger values produce odd results.
+ */
+#define REPEAT_BYTE_U32(x)     lower_32_bits(REPEAT_BYTE(x))
+
+/* Set bits in the first 'n' bytes when loaded from memory */
+#ifdef __LITTLE_ENDIAN
+#  define aligned_byte_mask(n) ((1UL << 8*(n))-1)
+#else
+#  define aligned_byte_mask(n) (~0xffUL << (BITS_PER_LONG - 8 - 8*(n)))
+#endif
+
 #endif // _LINUX_WORDPART_H