On Wed, Feb 21, 2018 at 10:31 AM, Christian König <christian.koenig at amd.com> wrote: > Am 21.02.2018 um 10:23 schrieb Bas Vermeulen: > > On Wed, Feb 21, 2018 at 10:14 AM, Christian König < > ckoenig.leichtzumerken at gmail.com> wrote: > >> Am 21.02.2018 um 10:06 schrieb Michel Dänzer: >> >>> On 2018-02-21 09:49 AM, Bas Vermeulen wrote: >>> >>>> Hi, >>>> >>>> I am unsure if this is the right place to ask, but it seems relevant. >>>> >>> >> Well this list is certainly the right place to ask :) > > > That's what I was hoping for :) > > >> >> I am trying to use an AMD E8860 (SI) board connected to an E6500 PowerPC >>>> board (T2080RDB from NXP). >>>> The T2080RDB does not use a BIOS, and uses u-boot to bootstrap Linux. >>>> >>>> I have the E8860 connected to a PCIe x4 slot with an adapter. The kernel >>>> is a 4.1, with DRM included in the kernel and the radeon as a module. >>>> The radeon driver detects the card, notices the BIOS hasn't posted and >>>> starts things up. >>>> After that, the ring tests get run, and fails on the ring 0 test, >>>> disabling acceleration. The graphics card is (or seems to be) working >>>> apart from that, the driver starts up and sees the connectors on the >>>> board. >>>> >>>> When I compare dmesg on an x86 machine and the PPC machine, I see that >>>> the x86 machine loads a lot more firmware from the kernel (probably the >>>> acceleration parts?). >>>> >>> FWIW, that's probably just a subsequent symptom due to the ring test >>> failure. >>> >> >> Could be, but IIRC we load all the firmware first then initialize things >> and then do the ring tests when we try to start the rings. >> >> BTW: What driver are you using? radeon or amdgpu? > > > This is a south-island or sea-island chip, so using radeon. > > > Well SI is also supported by amdgpu, I would give that a try as well. > Didn't know that, > And BTW please try a more recent kernel as well, 4.1 is rather old. > Somewhat easier said than done; it's an NXP board, and they only supply 4.1 at the moment. I'll see if I can upgrade to 4.15.x. > > > > >> >> My question is, what do I need to do to correctly initialize the E8860 >>>> board on my powerpc machine? >>>> >>> Start by sharing the dmesg output, and maybe also the kernel build >>> configuration file. >>> >> >> Maybe also open a bug report to attach the dmesg, see >> bugs.freedesktop.org. >> > > Sure. What project does the radeon driver fall under? I couldn't find the > right category under Mesa, not sure what > to file it under. > > > Product DRI and then select DRM/Radeon as component. > Gotcha. Bas Vermeulen -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180221/15102919/attachment.html>
