A few days ago I wrote about the open-source NVIDIA kernel driver going through a big rework and now that code has been queued up into DRM-Next for Linux 4.3.
Ben Skeggs of Red Hat who maintains the Nouveau DRM driver explained the work in the commit, “Beyond correcting some not-so-great design decisions and making the code a lot easier to work with, there’s not much exciting (lower memory usage, GPU VM should be a lot faster, etc) to be gained by the end-user as a result of the cleanup, it mostly lays the groundwork for future improvements.”