When starting a BLORP operation, we do the BTI-change flush. However,
when ending it and transitioning back to regular drawing, we change the
render target again - without a set_framebuffer_state() call. We need
to do the BTI flush there too. BLORP flags IRIS_DIRTY_RENDER_BUFFER
now, which will cause the next draw to get the BTI flush again.
(explanation of fix by Ken)
Fixes: 2b956a093a ("iris: totally untested icelake support")
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
bb0c5c487e