77 More Patches For AMDGPU's DC Display Stack
Written by Michael Larabel in AMD on 31 August 2017 at 02:56 PM EDT. 13 Comments
AMD --
Seventy-seven new patches were posted today for the AMDGPU DC (formerly DAL) display code that reworks around six thousand lines of this massive codebase.

AMDGPU DC or just "display code" as they now prefer calling it is a massive undertaking that isn't going to see the mainline kernel now until at least Linux 4.15 as it's too late to merge in DRM-Next for 4.14. We'll see in the next few weeks if the public review begins again to see if it's looking likely to happen for 4.15. We're growing increasingly anxious since this is the code that's blocking the display support for Radeon RX Vega for the mainline kernel, HDMI/DP audio for newer GPUs, HDMI 2.0 features, FreeSync, and more.

These newest AMDGPU DC patches rework some parts of the driver to be more like the other atomic DRM drivers, flatten out some more of their abstracted code, reworking hardware object code, Raven Ridge APU fixes, and various other fixes.

The long list of these additional changes here. This new display stack is well over one hundred thousand lines of code.

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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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