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| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-01 15:52:17 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-01 16:23:12 -0400 |
| commit | c53c70a90fdce3e7a53a0412abf7cc2b2a645988 (patch) | |
| tree | 0b1ec6d04be95ac07563ba518047be73973d25d8 /arch/tile/lib/usercopy_64.S | |
| parent | dd78bc11fb2050b6a3990d0421feca4c68ca4335 (diff) | |
| download | blackbird-op-linux-c53c70a90fdce3e7a53a0412abf7cc2b2a645988.tar.gz blackbird-op-linux-c53c70a90fdce3e7a53a0412abf7cc2b2a645988.zip | |
tile: optimize and clean up string functions
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>
Diffstat (limited to 'arch/tile/lib/usercopy_64.S')
0 files changed, 0 insertions, 0 deletions
