Mark Nelson a4e22f02f5 powerpc: Update 64bit __copy_tofrom_user() using CPU_FTR_UNALIGNED_LD_STD ... In exactly the same way that we updated memcpy() with new feature sections in commit 25d6e2d7c5 ("powerpc: Update 64bit memcpy() using CPU_FTR_UNALIGNED_LD_STD"), we do the same thing here for __copy_tofrom_user(). Once again this is purely a performance tweak for Cell and Power6 - this has no effect on all the other 64bit powerpc chips. We can make these same changes to __copy_tofrom_user() because the basic copy algorithm is the same as in memcpy() - this version just has all the exception handling logic needed when copying to or from userspace as well as a special case for copying whole 4K pages that are page aligned. CPU_FTR_UNALIGNED_LD_STD CPU was added in commit 4ec577a289 ("powerpc: Add new CPU feature: CPU_FTR_UNALIGNED_LD_STD"). We also make the same simple one line change from cmpldi r1,... to cmpldi cr1,... for consistency. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>		2008-11-19 16:04:54 +11:00
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Makefile	…
alloc.c	…
checksum_32.S	…
checksum_64.S	…
code-patching.c	…
copy_32.S	…
copypage_64.S	…
copyuser_64.S	powerpc: Update 64bit __copy_tofrom_user() using CPU_FTR_UNALIGNED_LD_STD	2008-11-19 16:04:54 +11:00
crtsavres.S	…
devres.c	…
div64.S	…
dma-noncoherent.c	powerpc: Remove superfluous WARN_ON() from dma-noncoherent.c	2008-11-19 16:04:52 +11:00
feature-fixups-test.S	…
feature-fixups.c	…
locks.c	…
mem_64.S	…
memcpy_64.S	powerpc: Update 64bit memcpy() using CPU_FTR_UNALIGNED_LD_STD	2008-11-05 22:08:29 +11:00
rheap.c	…
sstep.c	…
string.S	…
usercopy_64.c	…