Raspberry Pi VC4 DRM To Get Lower Memory/CPU Overhead On Linux 4.9

Written by Michael Larabel in Raspberry Pi on 13 September 2016 at 09:11 AM EDT. 1 Comment
The latest Raspberry Pi VC4 DRM driver changes have now landed in DRM-Next for in turn landing in the mainline kernel when the Linux 4.9 merge window opens in a few weeks.

The two main feature additions for the VC4 DRM driver are interlaced vblank timing and a memory/CPU overhead reduction when 3D rendering is taking place. The overhead reduction is from not forcing the new binner overflow allocation per-draw. Aside from the VC4 DRM driver work, with Linux 4.9 is where there finally might be mainline support for the Raspberry Pi Zero.

The VC4 pull into DRM-Next can be found here. The Linux 4.9 merge window should be open in early October.
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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 20,000 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, LinkedIn, or contacted via MichaelLarabel.com.

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