On Don, 2012-02-16 at 19:02 +1100, Benjamin Herrenschmidt wrote: > On Thu, 2012-02-16 at 08:50 +0100, Michel Dänzer wrote: > > > > The second case with no firmware is a bit more surprising, looks like > > > > something bad happened on the PCI express bus or the kernel tried to > > > > access something that the card rejected (target abort or PCIe > > > > equivalent most likely), thus triggering a PLB error . That could be > > > > investigated a bit more. > > > > AFAICT in both cases the immediate problem is the PLB error on first > > access to VRAM, indicating some kind of problem with ioremap_wc() or > > generally PCIe device memory access. > > I think the problem here is more along the lines of >32-bit physical > memory and ttm screwing up the physical addresses before mapping the > vram object. > > Tony (CC) has some patches to address that part (for use with a 476 > which is cache coherent, we got evergreen working on that). > > I think he hasn't yet "polished" the patches enough (ie fixed all the > drivers for the change in types) but basically, quite a few places in > there need to store physical addresses in resource_size_t instead of > long's. I see, thanks. > > > Anyway after nearly ten years, due a lack in resources, i'm sadly going > > > to suspend the CRUX PPC project and my activism pro free > > > software thus i'm unable to follow these debug. I'll hold on to me > > > the only YDL Powerstation then from the next weeks i'll can only follow > > > trying to help in debug [1] on this specific machine. > > > > > > [1]http://lists.freedesktop.org/archives/dri-devel/2012-January/018575.html > > > > For that one, I'd try adding some more debugging output to > > radeon_get_bios() to find out which method it ends up using to retrieve > > the ROM contents, and why it doesn't look like it's an ATOM BIOS. > > Is it an Apple card or an x86 card ? Apple cards don't have the BIOS in > the right place unfortunately. I don't think there ever were any Mac Editions of FireGL cards, and if it wasn't an x86 card, I'd expect different error messages. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
