Messages in this thread | | | Date | Thu, 01 May 2008 14:33:32 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect v2 |
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Yinghai Lu wrote: >> Overall, I'm feeling there is something really completely wrong if this >> needs manual tunables of any sort. > > the problem is BIOS set MTRR like BIG WB - SOME SAMLL UC to spare mtrr regs. > > but later X server driver want to set some range to WC. that already > is fallen in UC...
That's not the point. I understand you want to flatten the layout. The point is: why do you need manual tunables for the algorithm to do the right thing?
-hpa
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