Andy Shevchenko
d50ba3687b
x86/lib: Fix spelling, put space between a numeral and its units
...
As suggested by Peter Anvin.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: H . Peter Anvin <hpa@linux.intel.com >
Signed-off-by: Ingo Molnar <mingo@kernel.org >
2013-04-15 11:40:32 +02:00
Andy Shevchenko
bb916ff7cd
x86/lib: Fix spelling in the comments
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Apparently 'byts' should be 'bytes'.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: H . Peter Anvin <hpa@linux.intel.com >
Signed-off-by: Ingo Molnar <mingo@kernel.org >
2013-04-15 11:40:31 +02:00
Andy Lutomirski
59e97e4d6f
x86: Make alternative instruction pointers relative
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This save a few bytes on x86-64 and means that future patches can
apply alternatives to unrelocated code.
Signed-off-by: Andy Lutomirski <luto@mit.edu >
Link: http://lkml.kernel.org/r/ff64a6b9a1a3860ca4a7b8b6dc7b4754f9491cd7.1310563276.git.luto@mit.edu
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com >
2011-07-13 11:22:56 -07:00
Fenghua Yu
057e05c1d6
x86, mem: memmove_64.S: Optimize memmove by enhanced REP MOVSB/STOSB
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Support memmove() by enhanced rep movsb. On processors supporting enhanced
REP MOVSB/STOSB, the alternative memmove() function using enhanced rep movsb
overrides the original function.
The patch doesn't change the backward memmove case to use enhanced rep
movsb.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com >
Link: http://lkml.kernel.org/r/1305671358-14478-9-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com >
2011-05-17 15:40:30 -07:00
Fenghua Yu
9599ec0471
x86-64, mem: Convert memmove() to assembly file and fix return value bug
...
memmove_64.c only implements memmove() function which is completely written in
inline assembly code. Therefore it doesn't make sense to keep the assembly code
in .c file.
Currently memmove() doesn't store return value to rax. This may cause issue if
caller uses the return value. The patch fixes this issue.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com >
LKML-Reference: <1295314755-6625-1-git-send-email-fenghua.yu@intel.com >
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com >
2011-01-25 16:58:39 -08:00
