File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/arch/c6x/lib/llshl.S b/arch/c6x/lib/llshl.S
new file mode 100644
index 0000000..7b105e2
--- /dev/null
+++ b/arch/c6x/lib/llshl.S
@@ -0,0 +1,37 @@
+;; Copyright (C) 2010 Texas Instruments Incorporated
+;; Contributed by Mark Salter <msalter@redhat.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+;; uint64_t __c6xabi_llshl(uint64_t val, uint shift)
+
+#include <linux/linkage.h>
+
+ .text
+ENTRY(__c6xabi_llshl)
+ mv .l1x B4,A1
+ [!A1] b .s2 B3 ; just return if zero shift
+ mvk .s1 32,A0
+ sub .d1 A0,A1,A0
+ cmplt .l1 0,A0,A2
+ [A2] shru .s1 A4,A0,A0
+ [!A2] neg .l1 A0,A5
+|| [A2] shl .s1 A5,A1,A5
+ [!A2] shl .s1 A4,A5,A5
+|| [A2] or .d1 A5,A0,A5
+|| [!A2] mvk .l1 0,A4
+ [A2] shl .s1 A4,A1,A4
+ bnop .s2 B3,5
+ENDPROC(__c6xabi_llshl)