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Ma Ling
3b4b682bec
x86, mem: Optimize memmove for small size and unaligned cases
...
movs instruction will combine data to accelerate moving data,
however we need to concern two cases about it.
1. movs instruction need long lantency to startup,
so here we use general mov instruction to copy data.
2. movs instruction is not good for unaligned case,
even if src offset is 0x10, dest offset is 0x0,
we avoid and handle the case by general mov instruction.
Signed-off-by: Ma Ling <ling.ma@intel.com>
LKML-Reference: <1284664360-6138-1-git-send-email-ling.ma@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
15 years ago
..
.gitignore
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Makefile
x86, asm: Move cmpxchg emulation code to arch/x86/lib
15 years ago
atomic64_32.c
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atomic64_386_32.S
x86, asm: Use a lower case name for the end macro in atomic64_386_32.S
15 years ago
atomic64_cx8_32.S
x86-32: Fix atomic64_inc_not_zero return value convention
15 years ago
cache-smp.c
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checksum_32.S
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clear_page_64.S
x86, alternatives: Use 16-bit numbers for cpufeature index
15 years ago
cmpxchg.c
x86, asm: Merge cmpxchg_486_u64() and cmpxchg8b_emu()
15 years ago
cmpxchg8b_emu.S
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copy_page_64.S
x86, alternatives: Use 16-bit numbers for cpufeature index
15 years ago
copy_user_64.S
x86, alternatives: Fix one more open-coded 8-bit alternative number
15 years ago
copy_user_nocache_64.S
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csum-copy_64.S
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csum-partial_64.c
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csum-wrappers_64.c
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delay.c
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getuser.S
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inat.c
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insn.c
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iomap_copy_64.S
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memcpy_32.c
x86, mem: Optimize memmove for small size and unaligned cases
15 years ago
memcpy_64.S
x86, mem: Optimize memcpy by avoiding memory false dependece
15 years ago
memmove_64.c
x86, mem: Optimize memmove for small size and unaligned cases
15 years ago
memset_64.S
x86, alternatives: Use 16-bit numbers for cpufeature index
15 years ago
mmx_32.c
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msr-reg-export.c
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msr-reg.S
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msr-smp.c
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msr.c
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putuser.S
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rwlock_64.S
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rwsem_64.S
Fix the x86_64 implementation of call_rwsem_wait()
15 years ago
semaphore_32.S
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string_32.c
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strstr_32.c
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thunk_32.S
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thunk_64.S
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usercopy_32.c
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usercopy_64.c
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x86-opcode-map.txt
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