Going back to July 2025 the open-source Radeon RADV Vulkan driver has offered experimental host image copy support with the API's VK_EXT_host_image_copy extension. This has been for RDNA1 and newer GPUs while now GFX10 RDNA 1 GPUs have this extension enabled by default while also enabling experimental support for prior GFX9 era GPUs too.
Wei Zhao authored the change to provide experimental VK_EXT_host_image_copy support for GFX9 GPUs using the existing