Ok thanks to the forum at
www.2cpu.com I have managed to perform the same
tweaks done in w2k with wrcset in linux. Very easy:
verify the host bridge device by running:
zeus spxak 2: lspci
00:00.0 Host bridge: Advanced Micro Devices [AMD]: Unknown device 700c (rev
11)
then use pcitweak to set the registers as you do in wrcset:
/usr/X11R6/bin/pcitweak -w 0:0:0 -b 0x54 0x89
/usr/X11R6/bin/pcitweak -w 0:0:0 -b 0x55 0xc6
/usr/X11R6/bin/pcitweak -w 0:0:0 -b 0x56 0x01
/usr/X11R6/bin/pcitweak -w 0:0:0 -b 0x57 0x08
This works! When you read them back (/usr/X11R6/bin/pcitweak -r 0:0:0 -b 0x54) you get what you've written.
So as far as setting them goes, we're done.
Now how about benchmarking to reveal the difference (performance boost)?
Linear Mode
