> For some video cards (to wit, the voodoo stuff), the MTRRs should be set up as
> follows
>
> write-combining
> +----------------------------------------------------------+
> +-------+
> uncacheable
>
> i.e. the two regions have the same starting area, but the small chunk for the
> registers should be uncacheable. When I try to do this using memconf on my
> K6-2, it spits the dummy. Is there a work around for this?
The i686 MTRR implementation, at least, doesn't allow UC to overlap WC;
only Write-back and uncached are allowed to overlap. I don't know what
the K6's limitations are; you should talk to Brian Feldman about that.
--
\\ The mind's the standard \\ Mike Smith
\\ of the man. \\ [EMAIL PROTECTED]
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