Initial AMDGPU Features Lining Up For The Linux 4.6 Kernel
Written by Michael Larabel in Radeon on 18 February 2016 at 03:41 PM EST. 16 Comments
AMD's Alex Deucher has sent in the initial updates of the Radeon and AMDGPU DRM drivers for DRM-Next that in turn will target the upcoming Linux 4.6 kernel cycle.

Changes with this latest pull request include ACP (Audio Co-Processor) support for APUs with i2s audio, CS ioctl optimizations, GPU scheduler optimizations, GPUVM optimizations, initial GPU reset support, a new PowerPlay sysfs interface for manually selecting clock speeds, various PowerPlay fixes, virtualization fixes, removal of hardware semaphores support, and other clean-ups and fixes.

So it's not too exciting on the feature front unless you have a new Carrizo APU with i2s audio, but there are a lot of AMDGPU optimizations along with PowerPlay fixes for the AMDGPU re-clocking situation. The GPU reset support for being able to reset a hung GPU isn't yet enabled by default. As with the recent trend, most of these new open-source AMD developments are around the AMDGPU driver for GCN 1.2 GPus and newer while the Radeon DRM driver is getting into quite a mature state for all other AMD GPUs.

More details via this DRI-devel 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 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 automated benchmarking software. He can be followed via Twitter or contacted via

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