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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-11-26 09:23:57 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-11-26 09:23:57 +1100
commit2a859ab07b6ab66f4134c4fffc341398bd3d328c (patch)
treec5e7eaf3bffbc18feb326940e39794328d98dc07 /arch/m68k/include/uapi/asm/swab.h
parentcedddd812a79a4fda3885a15711aee3de78c4a24 (diff)
parente716e014384688d1a50d1aa5213ee74748c6d4e0 (diff)
downloadtalos-op-linux-2a859ab07b6ab66f4134c4fffc341398bd3d328c.tar.gz
talos-op-linux-2a859ab07b6ab66f4134c4fffc341398bd3d328c.zip
Merge branch 'merge' into next
Merge my own merge branch to get various fixes from there and upstream, especially the hvc console tty refcouting fixes which which testing is quite a bit harder...
Diffstat (limited to 'arch/m68k/include/uapi/asm/swab.h')
-rw-r--r--arch/m68k/include/uapi/asm/swab.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/m68k/include/uapi/asm/swab.h b/arch/m68k/include/uapi/asm/swab.h
new file mode 100644
index 000000000000..b7b37a40defc
--- /dev/null
+++ b/arch/m68k/include/uapi/asm/swab.h
@@ -0,0 +1,27 @@
+#ifndef _M68K_SWAB_H
+#define _M68K_SWAB_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+
+#define __SWAB_64_THRU_32__
+
+#if defined (__mcfisaaplus__) || defined (__mcfisac__)
+static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
+{
+ __asm__("byterev %0" : "=d" (val) : "0" (val));
+ return val;
+}
+
+#define __arch_swab32 __arch_swab32
+#elif !defined(__mcoldfire__)
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
+{
+ __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
+ return val;
+}
+#define __arch_swab32 __arch_swab32
+#endif
+
+#endif /* _M68K_SWAB_H */
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