Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / cris / include / arch-v10 / arch / swab.h

diff --git a/kernel/arch/cris/include/arch-v10/arch/swab.h b/kernel/arch/cris/include/arch-v10/arch/swab.h
new file mode 100644 (file)
index 0000000..e4e847d
--- /dev/null
+++ b/kernel/arch/cris/include/arch-v10/arch/swab.h
@@ -0,0 +1,30 @@
+#ifndef _CRIS_ARCH_SWAB_H
+#define _CRIS_ARCH_SWAB_H
+
+#include <asm/types.h>
+#include <linux/compiler.h>
+
+#define __SWAB_64_THRU_32__
+
+/* we just define these two (as we can do the swap in a single
+ * asm instruction in CRIS) and the arch-independent files will put
+ * them together into ntohl etc.
+ */
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+       __asm__ ("swapwb %0" : "=r" (x) : "0" (x));
+
+       return(x);
+}
+#define __arch_swab32 __arch_swab32
+
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
+{
+       __asm__ ("swapb %0" : "=r" (x) : "0" (x));
+
+       return(x);
+}
+#define __arch_swab16 __arch_swab16
+
+#endif