Open-Source Patches For NVIDIA's Tegra With Libdrm
Written by Michael Larabel in NVIDIA on 19 February 2014 at 01:00 PM EST. 1 Comment
Now that the Tegra DRM/KMS driver is beginning to stabilize, patches were published today by Thierry Reding -- who is now employed by NVIDIA -- to implement libdrm support for the Tegra open-source Linux graphics driver.

The patches published today supply libdrm-tegra with a lightweight API on top of the Tegra DRM driver's kernel interfaces. Libdrm is effectively the interface for communication between the kernel DRM drivers and the user-space components (namely the respective X.Org DDX driver and Mesa driver). With the NVIDIA Tegra libdrm support, Thierry Reding has implemented basic EXA 2D acceleration support in the xf86-video-opentegra driver.

That code has also been published today. The patches can be found on the DRI mailing list. This open-source driver supports the NVIDIA Tegra 2/3/4 SoCs and continues maturing thanks to the work by NVIDIA and the open-source community.

The super exciting Tegra K1 SoC also has open-source graphics support but there it's built atop the Nouveau driver since the Tegra K1 integrates a Kepler-based GPU. With future NVIDIA Tegra SoCs now having a common graphics architecture to the desktop, the future of this open-source Tegra/Grate DRM driver is rather limited to existing hardware.
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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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