anv: add a command streamer stall on Xe2+ when switching pipelines
What does this MR do and why?
anv: untyped dataport cache flush can only be emitted on the GPGPU pipeline on Xe2
Xe2+ gets rid of PIPELINE_SELECT, so we need to make sure we add a stall
when switching pipelines
Signed-off-by: Rohan Garg <rohan.garg@intel.com>
Edited by Rohan Garg