On Thu, 2019-03-14 at 12:30 +0200, Mika Westerberg wrote: > On Wed, Mar 13, 2019 at 07:09:26PM +0100, Timur Kristóf wrote: > > Hi, > > Hi, > > > I was sent here by Greg KH from the Linux USB mailing list, I hope > > this > > is the right place to ask. > > > > PCI-E atomics don't work for me with Thunderbolt 3. > > I see the following message from my Thunderbolt 3 eGPU in dmesg: > > > > kfd: skipped device 1002:67df, PCI rejects atomics > > > > Hardware is a Dell XPS 13 9370 (with i7-8550U CPU) connected to a > > Zotac > > AMP mini, with an AMD RX 570 graphics card. Due to this, I cannot > > use > > the GPU for OpenCL, because the compute stack requires PCI-E > > atomics > > support [1]. > > > > What could be the problem? Is this a hardware limitation or a > > missing > > feature in the Linux TB driver? > > I don't think it has anything to do with TBT itself. AtomicOps is a > PCIe > feature. > > What does 'sudo lspci -vv' show for the ports in question?
Hi Mika, I know atomics is a PCIe feature, but in this case the PCIe goes through TB3, so I would assume it has something to do with it. Here is the output of 'lspci -vv': https://pastebin.com/Qt5RUFVc Best regards, Tim _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
