From: "Timur Kristóf" <timur.kristof@gmail.com>
To: michael.jamet@intel.com,
Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Subject: Missing Thunderbolt 3 PCI-E atomics support
Date: Wed, 13 Mar 2019 19:09:26 +0100 [thread overview]
Message-ID: <6aa21e3e673113f1caac147c73df77ba863e2408.camel@gmail.com> (raw)
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?
[1] https://github.com/RadeonOpenCompute/ROCm/issues/157
Thanks & best regards,
Tim
ps. I'm not subscribed to the list, please CC me on your replies.
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next reply other threads:[~2019-03-13 18:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-13 18:09 Timur Kristóf [this message]
2019-03-14 10:30 ` Missing Thunderbolt 3 PCI-E atomics support Mika Westerberg
2019-03-14 17:26 ` Timur Kristóf
2019-03-14 17:40 ` Mika Westerberg
2019-03-14 17:54 ` Timur Kristóf
2019-03-14 18:17 ` Mika Westerberg
2019-03-14 18:36 ` Timur Kristóf
2019-03-15 19:46 ` Dieter Nützel
2019-03-15 20:03 ` Alex Deucher
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