• David S. Miller's avatar
    [SPARC64]: Fix missing load-twin usage in Niagara-1 memcpy. · 25e5566e
    David S. Miller authored
    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: default avatarDavid S. Miller <davem@davemloft.net>
    25e5566e
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