There are some APU-specific code paths for Kaveri and Carrizo in the
device queue manager and MQD manager. I think a minimal fix would be to
change device_queue_manager_init to call
device_queue_manager_init_cik_hawaii for Kaveri and
device_queue_manager_init_vi_tonga for Carrizo to use the
Use the dGPU path instead. There were a lot of platform
issues with IOMMU in general on these chips due to windows
not enabling IOMMU at the time. The dGPU path has been
used for a long time with newer APUs and works fine. This
also paves the way to simplify the driver significantly.
