drm/amdgpu/gfx9: properly set the hdp flush reg for Raven

Was only being assigned for vega10.

Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2017-09-02 02:16:35 -04:00
commit 29c3035fe3