MSAA Support Lands For R600 LLVM Back-End
Written by Michael Larabel in Mesa on 2 October 2013 at 05:19 PM EDT. Add A Comment
Multi-sample anti-aliasing (MSAA) support has landed for AMD's R600 GPU LLVM back-end for their open-source Linux graphics drivers.

The R600 Gallium3D driver with its default back-end has already supported MSAA, but now for the LLVM back-end that's needed for GPGPU/OpenCL support and mandated for "RadeonSI" (HD 7000/8000 series) graphics support, there is now handling for multi-sample anti-aliasing.

Aside from the Mesa patch for R600 LLVM MSAA, there's also an LLVM change that was committed today to add a new intrinsic needed for MSAA in the R600 back-end.

This support will be part of Mesa 9.3/Mesa 10.0 when that is released in November while the LLVM change will be found in LLVM 3.4 to be released around December.

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Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter or contacted via

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