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Linux 3.15 To Support DRM Render-Nodes By Default

Linux Kernel

Published on 16 March 2014 10:49 AM EDT
Written by Michael Larabel in Linux Kernel
4 Comments

David Herrmann sent in a patch on early Sunday (along with some other patches to be covered in another article) for enabling support for DRM render-nodes by default with the next Linux kernel cycle.

Render-nodes were an experimental Linux 3.12 feature that allows user-space to use non-privileged GPU commands without any DRM-Master setup. The primary use-case for DRM render-nodes is off-screen rendering (GPU offloading), GPGPU clients, and other render clients. DRM render-nodes was already covered at length in several Phoronix articles so check them out if you need a refresher. For the past few kernels the DRM render-nodes feature has been supported by the main Direct Rendering Manager drivers.

Herrmann, who was one of the original render-nodes developers, is now looking to enable this kernel feature by default. David sent in the patch this morning that would enable the feature unconditionally and could be merged for the Linux 3.15 kernel. David Herrmann wrote, "We introduced render-nodes about 1/2 year ago and no problems showed up. Remove the drm_rnodes argument and enable them by default now."

Linux 3.15 should be another great kernel cycle that will begin in just a few weeks time.

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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