aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-cris/arch-v10/byteorder.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-cris/arch-v10/byteorder.h')
-rw-r--r--include/asm-cris/arch-v10/byteorder.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/asm-cris/arch-v10/byteorder.h b/include/asm-cris/arch-v10/byteorder.h
new file mode 100644
index 000000000000..e24465d1f40d
--- /dev/null
+++ b/include/asm-cris/arch-v10/byteorder.h
@@ -0,0 +1,26 @@
+#ifndef _CRIS_ARCH_BYTEORDER_H
+#define _CRIS_ARCH_BYTEORDER_H
+
+#include <asm/types.h>
+#include <linux/compiler.h>
+
+/* 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.
+ */
+
+extern __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+{
+ __asm__ ("swapwb %0" : "=r" (x) : "0" (x));
+
+ return(x);
+}
+
+extern __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
+{
+ __asm__ ("swapb %0" : "=r" (x) : "0" (x));
+
+ return(x);
+}
+
+#endif