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AMD has updated their Linux Open Source Driver for Vulkan.



v-2022.Q3.5: 2022-9-30 update

The AMD Open Source Driver for Vulkan:registered: is an open-source Vulkan driver for Radeon:tm: graphics adapters on Linux:registered:. It is built on top of AMD's Platform Abstraction Library (PAL), a shared component that is designed to encapsulate certain hardware and OS-specific programming details for many of AMD's 3D and compute drivers. Leveraging PAL can help provide a consistent experience across platforms, including support for recently released GPUs and compatibility with AMD developer tools.

Shaders that compose a particular VkPipeline object are compiled as a single entity using the LLVM-Based Pipeline Compiler (LLPC) library. LLPC builds on LLVM's existing shader compilation infrastructure for AMD GPUs to generate code objects compatible with PAL's pipeline ABI. Notably, AMD's closed-source Vulkan driver currently uses a different pipeline compiler, which is the major difference between AMD's open-source and closed-source Vulkan drivers.

Vulkan

New feature and improvement

  • Update Khronos Vulkan Headers to 1.3.228
  • Support extension VK_EXT_depth_clamp_zero_one
  • Performance tuning for Doom Eternal, Yquake2, etc.
  • Enable acquire-release barrier
  • Enable MSAA decompress with compute engine

Issue fix

  • CTS random crash in dEQP-VK.pipeline.pipeline_library.stencil.*.comp_always
  • New version CTS failure in dEQP-VK.amd_ray_query.stress
  • Corruption in game Control, Detroit:Become Human and SOTR
  • Black line corruption in Metal gear Solid The Phantom Pain
  • Can’t share pipeline cache among processes
  • Corruption with unaligned memory to image copy
  • Dota2 crash in game launch

v-2022.Q3.5: 2022-9-30 update