> > How is your card configured? No on-board RAM.. just UMA... 32MB setup by BIOS..
> After looking at the debug output from the fglrx 8.32.5 driver, I think that > there is a GART table at the end of the 128M. (From 0x57fe0000-0x58000000) > The CP is mapped at 0x58000000. (In the GART space.) what makes you think that? I didn't think fglrx printed anything about the location of the GART table.. > Oh. That interesting... so when the driver uses the actual FB memory on the > card it works. It really seems like the whole GART is the broken part. > Why do you think that this card has a PCI gart (rather than a PCIe gart?) > And is there any place that describes how a PCI gart should be setup on a > Radeon? No this is just main RAM mapped by the BIOS setup.... the PCI gart registers on the card react to stimuli... the PCIE GART registers react to squat, ergo there are pieces of a PCI gart.. it is all described in ati_pcigart.c... > ... > > In your trace, you say that your equivalent of "0x34B40000" is the location > of the GART. Now have a look at your RAM at that point with something, I normally do mmapr /dev/mem 0x34b40000 256 | xxd -g4 you may need to change the byte order to something sensible.. 32-bit words might end in 0xc.. > What do those writes to 0x0168 and 0x16C do? If I knew I'd have it working, they are a bunch of indirect registers hiding behind index into 168 and data on 16c, I've just picked out the address from those, but nothing else is making major sense yet... therre may be a size or anything else in there.. > decoding as RADEON_CONFIG_APERSIZE > 0x04000000 [67108864] > RADEON_CONFIG_APERSIZE: 0x4000000 > > 0x00000130 -> 0x40800000 > decoding as RADEON_HOST_PATH_CNTL > 0x40800000 [1082130432] > RADEON_HDP_APER_CNTL: 0x1 > RADEON_HDP_SOFT_RESET: 0x0 > RADEON_HDP_WC_TIMEOUT_28BCLK: 0x4 > .... I still do that stuff in my head :-) > Attached is my compressed kmmio trace from the 8.32.5 driver. (I also have > a libsegfault trace, but it is much bigger.... Is there somewhere I can put > it online? I don't think the wiki will let me upload a 9Meg file...) > Well I've no major need for another trace, I have my own one :-), as I said I may/may not have time to keep looking at this... it is handy on the train in the morning with a laptop when I go to the office.. Dave. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
