[parisc-linux-cvs] linux willy
Thu, 1 Mar 2001 18:44:00 -0700
Module name: linux
Changes by: willy 01/03/01 18:44:00
Add `prefetch' and `prefetchw' macros to <asm/processor.h>,
conditionalised on CONFIG_PA20.
Change the raid functions to use prefetch if available. Note that this
is a terribly naive prefetch, which doesn't take into account cache
line sizes. I'm sure someone who cares can do better. But I get a 5-15%
speed improvement on PA8500 in wide mode.