Now that Amber exists and glvnd seems to be the route we plan on for "supporting" old DRI drivers, I'm working toward garbage collecting a lot of extra layering that we have to support out of tree DRI drivers. I feel that the loader interface gets in the way of implementing new EGL functionality, and obscures how the window system interacts with the gallium drivers. If we ensure that we only load a Mesa driver from our tree, then the window system can just interact with the dri_screen and pipe_screen directly.
MR is up at https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20069 Anyone see any blocking issues for this?
