summaryrefslogtreecommitdiff
path: root/arch/c6x/lib/memcpy_64plus.S
diff options
context:
space:
mode:
authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
commit6c02b7b1610f873888af20f291c07730889ff0f9 (patch)
tree1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/c6x/lib/memcpy_64plus.S
parent7a7546b377bdaa25ac77f33d9433c59f259b9688 (diff)
parentdcd6c92267155e70a94b3927bce681ce74b80d1f (diff)
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits) Linux 3.3-rc1 x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits qnx4: don't leak ->BitMap on late failure exits qnx4: reduce the insane nesting in qnx4_checkroot() qnx4: di_fname is an array, for crying out loud... KEYS: Permit key_serial() to be called with a const key pointer keys: fix user_defined key sparse messages ima: fix cred sparse warning uml: fix compile for x86-64 MPILIB: Add a missing ENOMEM check tpm: fix (ACPI S3) suspend regression nvme: fix merge error due to change of 'make_request_fn' fn type xen: using EXPORT_SYMBOL requires including export.h gpio: tps65910: Use correct offset for gpio initialization acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 tg3: Fix single-vector MSI-X code openvswitch: Fix multipart datapath dumps. ipv6: fix per device IP snmp counters ...
Diffstat (limited to 'arch/c6x/lib/memcpy_64plus.S')
-rw-r--r--arch/c6x/lib/memcpy_64plus.S46
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)