
An independent Radeon user is trying to port the UVD video decoding kernel bits for GCN 1.0/1.1 from the Radeon DRM driver to AMDGPU. The code is not yet working and also requires an updated firmware blob image, but it appears he is making progress in the right direction.
The developer is being challenged by the lack of documentation around the video decode interfaces, but he is trying to push forward to get this UVD working for SI/CIK GPUs on the AMDGPU driver. The details in this mailing list thread.
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