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drm/i915: Double check hangcheck.seqno after reset

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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: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161004201132.21801-5-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-10-04 21:11:29 +01:00
parent 9e60ab0387
commit 77c607013e
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_gem.c
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@ -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;