drm/radeon/kms/evergreen: setup and enable the CP

The command processor (CP) fetches command buffers and
feeds the GPU.  This patch requires the evergreen
family me and pfp ucode files.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
6 files changed