Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-19 18:41:48 +00:00
Code Issues Packages Projects Releases Wiki Activity
fe3955cb29
linux/arch
History
David Woodhouse fe3955cb29 powerpc: Enable ARCH_USE_BUILTIN_BSWAP 
By using the compiler intrinsics instead of hand-crafted opaque inline
assembler for byte-swapping, we let the compiler see what's actually
happening and it gets to use lwbrx/stwbrx instructions instead of a
normal load/store coupled with a sequence of rlwimi instructions to
move bits around.

Compiled-tested only. It gave a code size reduction of almost 4% for
ext2, and more like 2.5% for ext3/ext4.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-01-10 17:00:54 +11:00
..
alpha ALPHA: drivers: remove __dev* attributes. 2013-01-03 15:57:13 -08:00
arm Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2013-01-09 08:58:57 -08:00
arm64 - Missing include in asm/compat.h. 2013-01-04 10:41:54 -08:00
avr32 ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
blackfin ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
c6x These are a few cleanups for asm-generic: 2012-12-21 16:39:08 -08:00
cris ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
frv ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
h8300 These are a few cleanups for asm-generic: 2012-12-21 16:39:08 -08:00
hexagon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00
ia64 Driver core __dev* removal patches 2013-01-03 16:17:50 -08:00
m32r ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
m68k ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
microblaze Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze 2013-01-07 07:39:32 -08:00
mips Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-01-07 07:50:41 -08:00
mn10300 ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
openrisc ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
parisc ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
powerpc powerpc: Enable ARCH_USE_BUILTIN_BSWAP 2013-01-10 17:00:54 +11:00
s390 ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
score ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
sh ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
sparc SPARC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
tile ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
um Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00
unicore32 ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
x86 X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
xtensa These are a few cleanups for asm-generic: 2012-12-21 16:39:08 -08:00
.gitignore
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00