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MSM DRM Will Support New Hardware In Linux 3.14

Hardware

Published on 08 December 2013 05:44 AM EST
Written by Michael Larabel in Hardware
4 Comments

An early patch-set has been sent out by Rob Clark as he prepares the "MSM" DRM driver changes for the Linux 3.14 kernel. This open-source DRM graphics driver will support at least two new boards in the next kernel development cycle.

The MSM driver is Rob Clark's work on coming up with a proper Direct Rendering Manager driver for Qualcomm's graphics hardware found in their Snapdragon SOCs. After Rob made much progress on the Freedreno Gallium3D driver for the 3D side of the Adreno GPU, Rob lately has been devoting a fair amount of attention to this new DRM driver to avoid having to use Qualcomm's Android-focused kernel driver.

The MSM driver was merged into the Linux 3.12 kernel, picked up more features in Linux 3.13, and will now come with new hardware support in Linux 3.14.

The new hardware that Rob Clark has been working to support by this driver is the APQ8060a "Bstem Board" that has an MDP4 display controller with Adreno 320 GPU and the APQ8074 "Dragon Board" with its new MDP5 display controller and an Adreno 330 GPU. Just this weekend Rob Clark got the A330 compiler support into Mesa's Freedreno driver while on the display side the MDP5 is all new. The MSM driver doesn't yet support a hardware cursor or plane support for the MDP5 display controller, but knowing Rob that will change in due time.

While we're still many weeks out from seeing the Linux 3.14 kernel merge window, this work so far queued up for Linux 3.14 consists of 13 patches and pulls in eight thousand new lines of code and does away with three thousand lines of code. More details on this latest MSM driver work can be found via the dri-devel mailing list thread.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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