Mordy Ovits wrote:
>
> Does anyone know how to correctly setup write-combining for video RAM on
> a BP6? I'm using a TNT2 w/ 32 MB of Video RAM. My X startup log shows
> two memory addresses.
>
If there's two adresses in the startup log, do "cat /proc/pci" and
look for that one, which is marked as "prefetchable".
write:
VRAM adress VRAM size
V V
echo "base=0xe0000000 size=0x400000 type=write-combining" > /proc/mtrr
Then do cat /proc/mtrr and check if that works.
Of course, You must have mtrr support compiled in.
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