kernel/linux.git/arch/tile/lib/string-endian.h, branch v4.9.331Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v4.9.3312013-08-01T20:23:12+00:00tile: optimize and clean up string functions2013-08-01T20:23:12+00:00Chris Metcalfcmetcalf@tilera.com2013-08-01T19:52:17+00:00urn:sha1:c53c70a90fdce3e7a53a0412abf7cc2b2a645988
This change cleans up the string code in a number of ways:
- For memcpy(), fix bug in prefetch and increase distance to 3 lines;
optimize for unaligned data; do all loads before wh64 to make memcpy
safe for forward-overlapping calls; etc. Performance is improved.
- Use new copy_byte() function on tilegx to spread a single byte value
out into a full word using the shufflebytes instruction.
- Clean up header include ordering to be more canonical, and remove
spurious #undefs of function names.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
arch/tile: support building big-endian kernel2012-05-25T16:48:22+00:00Chris Metcalfcmetcalf@tilera.com2012-03-29T17:30:31+00:00urn:sha1:1efea40d4172a2a475ccb29b59d6221e9d0c174b
The toolchain supports big-endian mode now, so add support for building
the kernel to run big-endian as well.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>