radv/gfx10: make GDS idle when leaving the IB

NGG streamout uses GDS and we have to make sure that another
process isn't going to overwrite GDS while our shaders are busy.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
1 file changed