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-              r058b021
+              rc55dd58
 #define KERN_ppc64_BYTEORDER_H_
-#include <arch/types.h>
 #include <byteorder.h>
+#define BIG_ENDIAN
+#define uint32_t_le2host(n)             uint64_t_byteorder_swap(n)
+#define uint64_t_le2host(n)             uint32_t_byteorder_swap(n)
+static inline uint64_t uint64_t_le2host(uint64_t n)
+{
+        return uint64_t_byteorder_swap(n);
+}
+/** Convert little-endian unative_t to host unative_t
+ *
+ * Convert little-endian unative_t parameter to host endianess.
+ *
+ * @param n Little-endian unative_t argument.
+ *
+ * @return Result in host endianess.
+ *
+ */
+static inline unative_t unative_t_le2host(unative_t n)
+{
+        uintptr_t v;
+        asm volatile (
+                "lwbrx %0, %1, %2\n"
+                : "=r" (v)
+                : "i" (0), "r" (&n)
+        );
+        return v;
+}
+#define uint32_t_be2host(n)             (n)
+#define uint64_t_be2host(n)             (n)
 #endif

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Changeset c55dd58 in mainline for kernel/arch/ppc64/include/byteorder.h