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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alloc.c	[POWERPC] Limit range of __init_ref_ok somewhat	2007-10-03 11:48:44 +10:00
checksum_32.S
checksum_64.S
code-patching.c	PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures	2008-07-24 10:47:21 -07:00
copy_32.S
copypage_64.S	powerpc: New copy_4K_page()	2008-09-15 11:07:42 -07:00
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	[POWERPC] Fix -Os kernel builds with newer gcc versions	2008-06-16 15:00:54 +10:00
devres.c	[POWERPC] devres: Add devm_ioremap_prot()	2008-05-05 16:47:14 +10:00
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	powerpc: Fixup lwsync at runtime	2008-07-03 16:58:10 +10:00
feature-fixups.c	powerpc: Use WARN_ON(1) instead of __WARN()	2008-07-22 10:39:34 +10:00
locks.c
Makefile	powerpc: Remove use of CONFIG_PPC_MERGE	2008-08-04 13:18:17 +10:00
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	[POWERPC] Make rheap safe for spinlocks	2008-04-17 09:50:38 -05:00
sstep.c
string.S	powerpc: Use PPC_LONG and PPC_LONG_ALIGN in lib/string.S	2008-07-22 10:39:35 +10:00
usercopy_64.c