What? It has been in mesa for many months (I run a custom elf/linux distro for AMD hardware)? BTW, it is kind of big, complex and it is not cleanly compilable-out, some patches are still needed for that.
This is not the driver. As stated in the first sentence of the link, what is being discussed is "part of their developer software suite for helping to profile ray-tracing performance/issues on Windows and Linux with both Direct3D 12 and the Vulkan API."
