mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 20:22:09 +00:00
d2912cb15b
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>
64 lines
1.1 KiB
ArmAsm
64 lines
1.1 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
|
*/
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
ENTRY_CFI(memcpy)
|
|
or r3,r0,r1
|
|
asl_s r3,r3,30
|
|
mov_s r5,r0
|
|
brls.d r2,r3,.Lcopy_bytewise
|
|
sub.f r3,r2,1
|
|
ld_s r12,[r1,0]
|
|
asr.f lp_count,r3,3
|
|
bbit0.d r3,2,.Lnox4
|
|
bmsk_s r2,r2,1
|
|
st.ab r12,[r5,4]
|
|
ld.a r12,[r1,4]
|
|
.Lnox4:
|
|
lppnz .Lendloop
|
|
ld_s r3,[r1,4]
|
|
st.ab r12,[r5,4]
|
|
ld.a r12,[r1,8]
|
|
st.ab r3,[r5,4]
|
|
.Lendloop:
|
|
breq r2,0,.Last_store
|
|
ld r3,[r5,0]
|
|
#ifdef __LITTLE_ENDIAN__
|
|
add3 r2,-1,r2
|
|
; uses long immediate
|
|
xor_s r12,r12,r3
|
|
bmsk r12,r12,r2
|
|
xor_s r12,r12,r3
|
|
#else /* BIG ENDIAN */
|
|
sub3 r2,31,r2
|
|
; uses long immediate
|
|
xor_s r3,r3,r12
|
|
bmsk r3,r3,r2
|
|
xor_s r12,r12,r3
|
|
#endif /* ENDIAN */
|
|
.Last_store:
|
|
j_s.d [blink]
|
|
st r12,[r5,0]
|
|
|
|
.balign 4
|
|
.Lcopy_bytewise:
|
|
jcs [blink]
|
|
ldb_s r12,[r1,0]
|
|
lsr.f lp_count,r3
|
|
bhs_s .Lnox1
|
|
stb.ab r12,[r5,1]
|
|
ldb.a r12,[r1,1]
|
|
.Lnox1:
|
|
lppnz .Lendbloop
|
|
ldb_s r3,[r1,1]
|
|
stb.ab r12,[r5,1]
|
|
ldb.a r12,[r1,2]
|
|
stb.ab r3,[r5,1]
|
|
.Lendbloop:
|
|
j_s.d [blink]
|
|
stb r12,[r5,0]
|
|
END_CFI(memcpy)
|