drm/amdgpu/gfx: add definition of mmCGTT_GS_NGG_CLK_CTRL

Needed for clockgating.

Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaojie Yuan 2019-02-14 09:06:10 +08:00 • committed by Alex Deucher
commit 58acab6629