### etnaviv_noop backend This implements the minimum of etnaviv in order to make shader-db work. The submit ioctl is stubbed out to not execute anything. Export `MESA_LOADER_DRIVER_OVERRIDE=etnaviv LD_PRELOAD=$prefix/lib/libetnaviv_noop_drm_shim.so`. It is possible to select a specific GPU model by setting the ETNA_SHIM_GPU environment variable. The following GPU models are available: - GC2000 (default) - GC3000 - GC7000L