On Jan 16, 2008 3:14 PM, erik quanstrom <[EMAIL PROTECTED]> wrote: > is there a problem with the generality of this patch?
Note that the patch is saved, and I'm guessing there is a reason: it's arguably gross to expose the MTRRs to the world. I was thinking about this. It seems to me that MTRRs could really be managed in mmu.c (but it's a headache). You would need to know when a device mapped physical memory that it ought to be cached, and set the MTRRs up properly. > > it would also be nice if the kernel kept it's own copy > of the frame buffer. nvidia^wmodern graphics cards are just not > designed to be read from. I know that is true on AGP, but had understood it to be less true on PCIe. Is it really so bad on PCIe now? thanks ron
