kernel_optimize_test/arch/c6x/lib/memcpy_64plus.S
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  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

  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 #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

44 lines
823 B
ArmAsm

; SPDX-License-Identifier: GPL-2.0-only
; Port on Texas Instruments TMS320C6x architecture
;
; Copyright (C) 2006, 2009, 2010 Texas Instruments Incorporated
; Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
;
#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)