| commit | 25e5566ed38650f7990041fcd20571d6ddd2a040 | [log] [tgz] |
|---|---|---|
| author | David S. Miller <davem@sunset.davemloft.net> | Tue Oct 02 01:03:09 2007 -0700 |
| committer | David S. Miller <davem@sunset.davemloft.net> | Tue Oct 02 01:03:09 2007 -0700 |
| tree | 26d5bf006a6945930102fa01ad0edcd479b39bbf | |
| parent | 8cc8c28a9acdceda0e60519167a052cc3408c5c3 [diff] |
[SPARC64]: Fix missing load-twin usage in Niagara-1 memcpy. For the case where the source is not aligned modulo 8 we don't use load-twins to suck the data in and this kills performance since normal loads allocate in the L1 cache (unlike load-twin) and thus big memcpys swipe the entire L1 D-cache. We need to allocate a register window to implement this properly, but that actually simplifies a lot of things as a nice side-effect. Signed-off-by: David S. Miller <davem@davemloft.net>