NVK, the community-built open-source Vulkan driver for Nvidia GPUs in Mesa, has gained experimental DLSS support, with the code landing in Mesa 26.2-devel, as reported by Phoronix. The driver doesn’t reimplement the upscaler but instead loads Nvidia's own pre-compiled CUDA binaries and runs them, a workaround that keeps the feature behind an experimental flag and ties it to whether compatible bytecode exists for a given card. Nvidia's proprietary Linux driver has of course handled DLSS for years, so the change closes one of the bigger gaps between the closed driver and its open-source counterpart, rather than bringing the technology to Linux for the first time.
DLSS runs on NVK through VK_NVX_binary_import, a Vulkan extension that lets an application load Nvidia CuBIN files, the pre-baked CUDA binaries Nvidia, and loads them on the GPU. Autumn Ashton opened the original pull request for the extension last year, and Thomas Andersen revived it roughly two months ago to clear merge conflicts and finish the work, with the path sitting behind the NVK_EXPERIMENTAL=dlss environment variable because known bugs remain.
