AMDGPU Gets More Power-Related Fixes In Linux 4.11

Written by Michael Larabel in Radeon on 9 February 2017 at 04:36 PM EST. 13 Comments
It feels like the work on power management / clock-gating / PowerPlay is a never-ending mission within the AMDGPU DRM driver -- more work has been queued up for the next kernel cycle.

Last week was the main AMDGPU features for Linux 4.11 being submitted to DRM-Next. In that article you can find out about the various new features that will premiere in the DRM driver with Linux 4.11. There was power management work as part of that earlier pull while coming today were some fixes of material to land for Linux 4.11.

Alex Deucher sent in additional fixes today for drm-next-4.11 and it's primarily about power changes. There are more PowerPlay fixes and VCE/UVD power-gating fixes.

There is also a clean-up to the AMDGPU Southern Islands graphics code to better match the Sea Islands and Volcanic Islands code. The SI/CI support remains an experimental feature of the AMDGPU DRM driver and isn't yet enabled by default, deferring instead to the mature Radeon DRM driver, unless otherwise set at the kernel's build time.

There are also various other fixes as outlined via this pull request.
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 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 automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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