[Bug 107898] "kfd: Failed to resume IOMMU for device 1002:15dd" on Raven Ridge

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107898

--- Comment #11 from Felix Kuehling <felix.kuehling at amd.com> ---
rocminfo reports both the CPU and the GPU.

If OpenCL can't use the CPU as a compute device, that's probably a limitation
of the OpenCL implementation.

The max memory allocation size is strange. rocminfo reports a single 16GB
memory pool attached to the CPU. That's system memory from the CRAT table and
looks reasonable. It should be possible to use at least 3/8 of that with the
upstream KFD. If CLinfo is reporting something different I'm wondering if it's
an OpenCL limitation rather than a ROCm limitation.

If you're interested in the raw information reported by KFD to user mode,
checkout /sys/class/kfd/kfd/topology/nodes. On an APU there should be only one
node (0). Underneath that you'll find node properties as well as memory
properties that may be interesting.

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