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Graphics: Panfrost, NVIDIA, and AMDVLK

Submitted by Roy Schestowitz on Friday 11th of June 2021 04:38:28 PM Filed under
Graphics/Benchmarks
  • Open Source OpenGL ES 3.1 on Mali GPUs with Panfrost

    Panfrost, the open source driver for Arm Mali, now supports OpenGL ES 3.1 on both Midgard (Mali T760 and newer) and Bifrost (Mali G31, G52, G76) GPUs. OpenGL ES 3.1 adds a number of features on top of OpenGL ES 3.0, notably including compute shaders. While Panfrost has had limited support for compute shaders on Midgard for use in TensorFlow Lite, the latest work extends the support to more GPUs and adds complementary features required by the OpenGL ES 3.1 specification, like indirect draws and no-attachment framebuffers.

    The new feature support represents the cumulative effort of multiple Collaborans -- Boris Brezillon, Italo Nicola, and myself -- in tandem with the wider Mesa community. The OpenGL driver has seen over 1000 commits since the beginning of 2021, including several hundred targeting OpenGL ES 3.1 features. Our focus is Mali G52, where we are passing essentially all drawElements Quality Program and Khronos conformance tests and are aiming to become formally conformant. Nevertheless, thanks to a unified driver, many new features on Bifrost trickle down to Midgard allowing the older architecture still in wide use to improve long after the vendor has dropped support. On Mali T860, we are passing about 99.5% of tests required for conformant OpenGL ES 3.1. That number can only grow thanks to Mesa's continuous integration running these tests for every merge request and preventing Panfrost regressions. With a Vulkan driver in the works, Panfrost's API support is looking good.

  • NVIDIA GeForce RTX 3070 Ti / RTX 3080 Ti Compute + Renderer Performance Benchmarks Review - Phoronix

    With last week's launch of the GeForce RTX 3080 Ti and this week's launch of the GeForce RTX 3070 Ti there have been plenty of Linux gaming benchmarks on Phoronix. But for those interested in these new RTX 30 Ampere graphics cards for GPU compute or rendering workloads, in this article are many benchmarks on that front compared to various RTX 20 and RTX 30 series graphics cards.

  • AMDVLK 2021.Q2.5 Released As A Minor Radeon Vulkan Driver Update - Phoronix

    Following the last AMDVLK update at the end of May, AMD has released AMDVLK 2021.Q2.4 as their newest open-source AMD Radeon Vulkan driver release.

    This AMDVLK 2021.Q2.5 release is fairly small and just rebuilds against the Vulkan 1.2.179 headers plus has two bug fixes. The fixes involve corruption while running Wayland render tests and a capture issue with the Radeon Graphics Profiler and RenderDoc.

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