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Graphics: Mesa/Virgl3D, Nouveaum and Gallium3D

Submitted by Roy Schestowitz on Friday 15th of February 2019 07:06:12 PM Filed under
Graphics/Benchmarks
  • Virgl Lands A Number Of Performance Optimizations In Mesa 19.1

    For those using the Virgl3D driver stack for having OpenGL acceleration within KVM guest VMs with VirtIO-GPU that is then accelerated by hosts, there are performance optimizations that have just landed in the Mesa 19.1 development code.

    Virgl has introduced a transfer queue along with being able to de-duplicate intersecting 1D transfers, which results in a texture upload micro-benchmark going from 64.23 mtexel/sec all the way to 367.44 mtexel/sec.

  • Panfrost Gallium3D Driver Gets Mali T600/T700 Midgard Update

    The Panfrost Gallium3D driver that was recently merged into Mesa 19.1 will soon have better support for the Mali T600/T700 series graphics.

    ARM's Mali Midgard T600/T700 generations have always been part of the support target for the Panfrost driver, but the newer T860 is where the developers spend most of their reverse-engineering, open-source driver development resources. With a several hundred line patch, the Panfrost Gallium3D driver is receiving updated support for the older Mali Midgard hardware with tests done on the T760 while not regressing the newer T860 support.

  • Nouveau Driver Picks Up SVM Support Via HMM

    The Nouveau kernel driver has queued patches for introducing Shared Virtual Memory (SVM) support for this open-source NVIDIA driver as a step forward to its OpenCL/compute opportunities.

    The Nouveau DRM driver has support for SVM via the Heterogeneous Memory Management infrastructure that's been part of the mainline kernel for a while. Nouveau patches have been worked on for a while but finally on trajectory for mainline. The NVIDIA proprietary driver has also been working to make use of HMM.

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