AMDKFD GPUVM Support Updated For Radeon Discrete GPUs
Written by Michael Larabel in Radeon on 8 February 2018 at 06:29 AM EST. 13 Comments
RADEON --
Many of you have been anxious to get ROCm/OpenCL compute working with the open-source Radeon Linux driver on modern GPUs while using a mainline kernel and that day continues inching closer.

That long sought after goal should be achieved for Linux 4.17 and there are updated AMDKFD patches now available that work in that direction. But as noted previously, the Linux 4.17 mainline paired with working ROCm/OpenCL will initially be just for select GPUs while hardware like Vega will likely end up needing more time before it's running off a mainline kernel for GPGPU compute.

Felix Kuehling sent out 25 updated patches on Wednesday for discrete GPU handling for GPUVM with the AMDKFD driver. These updated patches are re-based against the latest kernel code, offer several fixes compared to the earlier patches, and have an IOMMU change.

Those anxious to get going with AMDKFD/OpenCL dGPU support can help test out these latest patches via amd-gfx. The latest ROCm user-space components continue to be available via GitHub.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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