Merge branch 'linus' into x86/xen

1 files changed, 57 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/byteorder.h b/arch/sparc/include/asm/byteorder.h
new file mode 100644
index 00000000000..bcd83aa351c
--- /dev/null
+++ b/arch/sparc/include/asm/byteorder.h
@@ -0,0 +1,57 @@
+#ifndef _SPARC_BYTEORDER_H
+#define _SPARC_BYTEORDER_H
+
+#include <asm/types.h>
+#include <asm/asi.h>
+
+#ifdef __GNUC__
+
+#ifdef CONFIG_SPARC32
+#define __SWAB_64_THRU_32__
+#endif
+
+#ifdef CONFIG_SPARC64
+
+static inline __u16 ___arch__swab16p(const __u16 *addr)
+{
+	__u16 ret;
+
+	__asm__ __volatile__ ("lduha [%1] %2, %0"
+			      : "=r" (ret)
+			      : "r" (addr), "i" (ASI_PL));
+	return ret;
+}
+
+static inline __u32 ___arch__swab32p(const __u32 *addr)
+{
+	__u32 ret;
+
+	__asm__ __volatile__ ("lduwa [%1] %2, %0"
+			      : "=r" (ret)
+			      : "r" (addr), "i" (ASI_PL));
+	return ret;
+}
+
+static inline __u64 ___arch__swab64p(const __u64 *addr)
+{
+	__u64 ret;
+
+	__asm__ __volatile__ ("ldxa [%1] %2, %0"
+			      : "=r" (ret)
+			      : "r" (addr), "i" (ASI_PL));
+	return ret;
+}
+
+#define __arch__swab16p(x) ___arch__swab16p(x)
+#define __arch__swab32p(x) ___arch__swab32p(x)
+#define __arch__swab64p(x) ___arch__swab64p(x)
+
+#endif /* CONFIG_SPARC64 */
+
+#define __BYTEORDER_HAS_U64__
+
+#endif
+
+#include <linux/byteorder/big_endian.h>
+
+#endif /* _SPARC_BYTEORDER_H */