Nouveau NIR Support Slated To Land In Mesa 19.1 Over The Days Ahead
Written by Michael Larabel in Nouveau on 12 March 2019 at 12:01 AM EDT. 12 Comments
NOUVEAU --
The work done by Red Hat's Karol Herbst over the past year for plumbing in NIR intermediate representation support within the open-source NVIDIA "Nouveau" Gallium3D driver will finally be landing.

Karol Herbst sent out the latest 34 patches while sharing his intentions to go ahead and merge the code to Mesa over the next few days. This means the experimental Nouveau NIR support would be part of next quarter's Mesa 19.1 release.

The NIR support is considered experimental at this time and not enabled by default but can be easily toggled with the NV50_PROG_USE_NIR=1 environment variable.

Ultimately this NIR work is about bringing up Nouveau's OpenCL/compute support but may prove useful in the future around Vulkan, potentially performance benefits, and the trend of more Mesa/Gallium3D drivers turning to supporting this IR as an alternative to the likes of Gallium's TGSI.
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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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