drm/amdgpu: add navi pm4 header

A pm4 header for Navi. PM4 is the packet format used
by the compute and gfx engines.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2019-03-04 14:29:55 +08:00 • committed by Alex Deucher
commit 98cd7f5b18