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tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'

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commit 35cb8c713a496e8c114eed5e2a5a30b359876df2 upstream.

To bring in the change made in this cset:

  f94909ceb1ed4bfd ("x86: Prepare asm files for straight-line-speculation")

It silences these perf tools build warnings, no change in the tools:

  Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S'
  diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S
  Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S'
  diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S

The code generated was checked before and after using 'objdump -d /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o',
no changes.

Cc: Borislav Petkov <bp@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnaldo Carvalho de Melo 2021-05-09 10:19:37 -03:00 committed by Greg Kroah-Hartman
parent e9925a4584
commit 494ed76c14
2 changed files with 9 additions and 9 deletions
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12
tools/arch/x86/lib/memcpy_64.S
View File

@ -39,7 +39,7 @@ SYM_FUNC_START_WEAK(memcpy)
rep movsq
movl %edx, %ecx
rep movsb
ret
RET
SYM_FUNC_END(memcpy)
SYM_FUNC_END_ALIAS(__memcpy)
EXPORT_SYMBOL(memcpy)
@ -53,7 +53,7 @@ SYM_FUNC_START_LOCAL(memcpy_erms)
movq %rdi, %rax
movq %rdx, %rcx
rep movsb
ret
RET
SYM_FUNC_END(memcpy_erms)
SYM_FUNC_START_LOCAL(memcpy_orig)
@ -137,7 +137,7 @@ SYM_FUNC_START_LOCAL(memcpy_orig)
movq %r9, 1*8(%rdi)
movq %r10, -2*8(%rdi, %rdx)
movq %r11, -1*8(%rdi, %rdx)
retq
RET
.p2align 4
.Lless_16bytes:
cmpl $8, %edx
@ -149,7 +149,7 @@ SYM_FUNC_START_LOCAL(memcpy_orig)
movq -1*8(%rsi, %rdx), %r9
movq %r8, 0*8(%rdi)
movq %r9, -1*8(%rdi, %rdx)
retq
RET
.p2align 4
.Lless_8bytes:
cmpl $4, %edx
@ -162,7 +162,7 @@ SYM_FUNC_START_LOCAL(memcpy_orig)
movl -4(%rsi, %rdx), %r8d
movl %ecx, (%rdi)
movl %r8d, -4(%rdi, %rdx)
retq
RET
.p2align 4
.Lless_3bytes:
subl $1, %edx
@ -180,7 +180,7 @@ SYM_FUNC_START_LOCAL(memcpy_orig)
movb %cl, (%rdi)
.Lend:
retq
RET
SYM_FUNC_END(memcpy_orig)
.popsection

6
tools/arch/x86/lib/memset_64.S
View File

@ -40,7 +40,7 @@ SYM_FUNC_START(__memset)
movl %edx,%ecx
rep stosb
movq %r9,%rax
ret
RET
SYM_FUNC_END(__memset)
SYM_FUNC_END_ALIAS(memset)
EXPORT_SYMBOL(memset)
@ -63,7 +63,7 @@ SYM_FUNC_START_LOCAL(memset_erms)
movq %rdx,%rcx
rep stosb
movq %r9,%rax
ret
RET
SYM_FUNC_END(memset_erms)
SYM_FUNC_START_LOCAL(memset_orig)
@ -125,7 +125,7 @@ SYM_FUNC_START_LOCAL(memset_orig)
.Lende:
movq %r10,%rax
ret
RET
.Lbad_alignment:
cmpq $7,%rdx