tree 931d4505a0ba65124b662f0f8b5935e0b154bd66
parent 88d7079458f87d6f2d2261b2f87b7b9416019f5e
author David S. Miller <davem@sunset.davemloft.net> 1142754911 -0800
committer David S. Miller <davem@sunset.davemloft.net> 1142846201 -0800

[SPARC64]: Optimized TSB table initialization.

We only need to write an invalid tag every 16 bytes,
so taking advantage of this can save many instructions
compared to the simple memset() call we make now.

A prefetching implementation is implemented for sun4u
and a block-init store version if implemented for Niagara.

The next trick is to be able to perform an init and
a copy_tsb() in parallel when growing a TSB table.

Signed-off-by: David S. Miller <davem@davemloft.net>