Re: MTRR & NVTNT

Richard Gooch (rgooch@atnf.csiro.au)
Sun, 14 Mar 1999 10:58:43 +1100

Alan Cox writes:
> > > This even lets drivers keep track of which MTRRs they should release,
> > > if required.
> > >
> > > What do people think of this interface?
> >
> > Looks good IMHO.
>
> One last question. How do you deal with running out of MTRR's - the K6
> for example has only two so you want them used by the right thing

What do you mean "the right thing"? If you have a FB which requires an
embedded uncachable region, you need two MTRRs. So the function will
allocate two. If you don't have two left, bad luck, you get an error
return.

What else can you do? Buy a better CPU :->

Regards,

Richard....

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