DRM Graphics Updates Sent In For The Linux 4.1 Kernel
Written by Michael Larabel in Linux Kernel on 20 April 2015 at 11:00 AM EDT. 7 Comments
LINUX KERNEL --
David Airlie has sent in the big pile of DRM subsystem updates for the Linux 4.1 kernel that includes significant work to the Radeon, Intel, and Nouveau drivers along with the DRM ARM drivers and the introduction of the new VGEM driver.

The highlights for these kernel graphics/display drivers in Linux 4.1 include:

- The new Virtual GEM (VGEM) driver for making faster the Mesa software rasterizers, including Softpipe and LLVMpipe.

- The Intel i915 driver has more Skylake enablement work, re-worked more code for handling the plane atomic conversion, XenGT vGPU support, Y-tiling support, Dynamic Refresh Rate Switching (DDRS) support, improved frame-buffer compression code, Braswell and Cherryview fixes, and more.

- The Radeon DRM driver now has DisplayPort MST support (though disabled by default), new VCE packet support, CSC output support, and other changes.

- The Nouveau DRM driver has GK20A IOMMU support, GeForce GTX 750 acceleration support without needing the proprietary firmware, and other GTX 900 series bring-up sans anything useful to users due to the lack of firmware/microcode at the moment.

- The AMDKFD HSA driver has support for multiple KGDs.

- Freedreno's MSM driver now has support for the Snapdragon 410.

- The rcar-du, atmel-hlcdc, and sti drivers have been ported to atomic mode-setting.

- Various fixes to the less common DRM drivers.

The full list of DRM changes for the Linux 4.1 merge window can be found by Airlie's pull request.
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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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