From: Chris Wilson Date: Tue, 4 Oct 2016 20:11:29 +0000 (+0100) Subject: drm/i915: Double check hangcheck.seqno after reset X-Git-Tag: android-x86-8.1-r1~3307^2~37^2~1218 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=77c607013e208ed212845ce2565f24145393fee1;p=android-x86%2Fkernel.git 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: Chris Wilson Cc: Mika Kuoppala Reviewed-by: Mika Kuoppala Link: http://patchwork.freedesktop.org/patch/msgid/20161004201132.21801-5-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 0cae8acdf906..a89a88922448 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -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;