Linux-libre 4.7.1-gnupck-4.7.1-gnu

1 files changed, 30 insertions, 0 deletions

diff --git a/arch/mips/include/asm/bitrev.h b/arch/mips/include/asm/bitrev.h
new file mode 100644
index 000000000..bc739a404
--- /dev/null
+++ b/arch/mips/include/asm/bitrev.h
@@ -0,0 +1,30 @@
+#ifndef __MIPS_ASM_BITREV_H__
+#define __MIPS_ASM_BITREV_H__
+
+#include <linux/swab.h>
+
+static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
+{
+	u32 ret;
+
+	asm("bitswap	%0, %1" : "=r"(ret) : "r"(__swab32(x)));
+	return ret;
+}
+
+static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
+{
+	u16 ret;
+
+	asm("bitswap	%0, %1" : "=r"(ret) : "r"(__swab16(x)));
+	return ret;
+}
+
+static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
+{
+	u8 ret;
+
+	asm("bitswap	%0, %1" : "=r"(ret) : "r"(x));
+	return ret;
+}
+
+#endif /* __MIPS_ASM_BITREV_H__ */