Universal Plane Support Set For Linux 3.15
Written by Michael Larabel in Linux Kernel on 2 April 2014 at 12:19 AM EDT. 4 Comments
Landing a few hours ago into the drm-next code-base for merger into the Linux 3.15 kernel in the days ahead is the universal/primary plane support for the Direct Rendering Manager drivers.

As explained in the aforelinked article, for moving towards atomic/nuclear mode-setting, all hardware planes need to be exposed in a consistent interface from the different graphics drivers. These patches spearheaded by Intel unify the plane support into a consistent and standardized interface. See that article plus the forum comments for more details about this ongoing work.

This work was pulled from Rob Clark's branch into the drm-next code by David Airlie. Besides Rob Clark's involvement at Red Hat, there's several Intel open-source developers that have been working on this code. The universal plane support with its user-space interface for Linux 3.15 will be hidden behind a drm.universal_planes module parameter and disabled by default until additional testing has happened.

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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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