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path: root/arch/sparc64/lib/NGcopy_to_user.S
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2007-10-02[SPARC64]: Fix missing load-twin usage in Niagara-1 memcpy.David S. Miller
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>
2006-03-20[SPARC64]: Fix some Niagara memcpy() bugs.David S. Miller
We need to restore the %asi register properly. For the kernel this means get_fs(), for user this means ASI_PNF. Also, NGcopy_to_user.S was including U3memcpy.S instead of NGmemcpy.S, oops :-) Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[SPARC64]: Niagara optimized memcpy() and copy_{to,from}_user().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>