1 files changed, 37 insertions, 0 deletions

diff --git a/arch/sparc/lib/NGcopy_from_user.S b/arch/sparc/lib/NGcopy_from_user.S
new file mode 100644
index 00000000000..e7f433f71b4
--- /dev/null
+++ b/arch/sparc/lib/NGcopy_from_user.S
@@ -0,0 +1,37 @@
+/* NGcopy_from_user.S: Niagara optimized copy from userspace.
+ *
+ * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
+ */
+
+#define EX_LD(x)                \
+98:     x;                      \
+        .section .fixup;        \
+        .align 4;               \
+99:     wr      %g0, ASI_AIUS, %asi;\
+        ret;                    \
+         restore %g0, 1, %o0;   \
+        .section __ex_table,"a";\
+        .align 4;               \
+        .word 98b, 99b;         \
+        .text;                  \
+        .align 4;
+
+#ifndef ASI_AIUS
+#define ASI_AIUS        0x11
+#endif
+
+#define FUNC_NAME               NGcopy_from_user
+#define LOAD(type,addr,dest)    type##a [addr] ASI_AIUS, dest
+#define LOAD_TWIN(addr_reg,dest0,dest1) \
+        ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_AIUS, dest0
+#define EX_RETVAL(x)            %g0
+
+#ifdef __KERNEL__
+#define PREAMBLE                                        \
+        rd              %asi, %g1;                      \
+        cmp             %g1, ASI_AIUS;                  \
+        bne,pn          %icc, memcpy_user_stub;         \
+         nop
+#endif
+
+#include "NGmemcpy.S"