Peter Wemm wrote: > We need to use the PAT cpu_features feature. This gives us 8 page attribute > modes instead of simple no-cache / writethrough flags. We can (and must) > control more carefully the speculative hardware prefetch, for example. > > I've been thinking about this with the pmap revamp that I'm working on. > It may solve the athlon problems too.
This sounds cool. Do you have references to the page attribute stuff? The books I have here don't discuss it; the only thing I see are 3 bits (9,10,11) that are "available" in the PDE and PTE? -- Terry To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
