1 files changed, 46 insertions, 0 deletions

diff --git a/arch/c6x/lib/memcpy_64plus.S b/arch/c6x/lib/memcpy_64plus.S
new file mode 100644
index 000000000000..0bbc2cbf9318
--- /dev/null
+++ b/arch/c6x/lib/memcpy_64plus.S
@@ -0,0 +1,46 @@
+;  Port on Texas Instruments TMS320C6x architecture
+;
+;  Copyright (C) 2006, 2009, 2010 Texas Instruments Incorporated
+;  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+;
+;  This program is free software; you can redistribute it and/or modify
+;  it under the terms of the GNU General Public License version 2 as
+;  published by the Free Software Foundation.
+;
+
+#include <linux/linkage.h>
+
+        .text
+
+ENTRY(memcpy)
+        AND     .L1     0x1,A6,A0
+ ||     AND     .S1     0x2,A6,A1
+ ||     AND     .L2X    0x4,A6,B0
+ ||     MV      .D1     A4,A3
+ ||     MVC     .S2     ILC,B2
+
+   [A0] LDB     .D2T1   *B4++,A5
+   [A1] LDB     .D2T1   *B4++,A7
+   [A1] LDB     .D2T1   *B4++,A8
+   [B0] LDNW    .D2T1   *B4++,A9
+ ||     SHRU    .S2X    A6,0x3,B1
+  [!B1] BNOP    .S2     B3,1
+
+   [A0] STB     .D1T1   A5,*A3++
+ ||[B1] MVC     .S2     B1,ILC
+   [A1] STB     .D1T1   A7,*A3++
+   [A1] STB     .D1T1   A8,*A3++
+   [B0] STNW    .D1T1   A9,*A3++        ; return when len < 8
+
+        SPLOOP  2
+
+        LDNDW   .D2T1   *B4++,A9:A8
+        NOP     3
+
+        NOP
+        SPKERNEL        0,0
+ ||     STNDW   .D1T1   A9:A8,*A3++
+
+        BNOP    .S2     B3,4
+        MVC     .S2     B2,ILC
+ENDPROC(memcpy)