Commit 77c60701 authored by Chris Wilson's avatar Chris Wilson

drm/i915: Double check hangcheck.seqno after reset

Check that there was not a late recovery between us declaring the GPU
hung and processing the reset. If the GPU did recover by itself, let the
request remain on the active list and see if it hangs again!
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161004201132.21801-5-chris@chris-wilson.co.uk
parent 9e60ab03
......@@ -2589,6 +2589,9 @@ static void i915_gem_reset_engine(struct intel_engine_cs *engine)
return;
ring_hung = engine->hangcheck.score >= HANGCHECK_SCORE_RING_HUNG;
if (engine->hangcheck.seqno != intel_engine_get_seqno(engine))
ring_hung = false;
i915_set_reset_status(request->ctx, ring_hung);
if (!ring_hung)
return;
......
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