drm/nvc0/fifo: attempt to recover from engine ctxsw timeouts

My test cases don't seem to trigger this on all Fermi boards, not sure
if they're broken tests or it didn't work until later versions.

GF119 definitely works.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-02-22 12:44:23 +10:00
commit 61fdf62093