i965: Always re-emit the pipeline select during invariant state emission
On the older platforms where we don't have logical contexts preserving state across batches, we emit the invariant state setup on every batch using the brw_invariant_state atom. This includes the pipeline selection which is cached with the introduction of commit 0e0e23ef Author: Jordan Justen <jordan.l.justen@intel.com> Date: Wed Apr 22 11:43:50 2015 -0700 i965/state: Emit pipeline select when changing pipelines However, we do not reset the cache between batches on context-less platforms resulting in us not setting the pipeline selection and can cause GPU hangs if a media pipelined was loaded in the meantime (e.g. mixing mplayer/gstreamer using libva and gnome-shell). A simple solution is to just forcibly re-emit the pipeline select along with the invariant state and reset the cache at that point. Reported-and-tested-by:Tomasz C. <tomaszc@o2.pl> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91254 Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by:
Jordan Justen <jordan.l.justen@intel.com> Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>