Completely re-initialize DMA settings
drwxr-xr-x - bsd-core
drwxr-xr-x - bsd
drwxr-xr-x - libdrm
drwxr-xr-x - linux-2.6
drwxr-xr-x - linux-core
drwxr-xr-x - linux
drwxr-xr-x - scripts
drwxr-xr-x - shared-core
drwxr-xr-x - shared
drwxr-xr-x - tests