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authorChris Wilson <chris@chris-wilson.co.uk>2016-10-04 23:11:29 +0300
committerChris Wilson <chris@chris-wilson.co.uk>2016-10-05 10:40:06 +0300
commit77c607013e208ed212845ce2565f24145393fee1 (patch)
treee2a2c342c49c7229fad7cf83443ad759c8f337d8 /drivers/gpu
parent9e60ab0387817c6a9440f448aff7c8514b32d31b (diff)
downloadlinux-77c607013e208ed212845ce2565f24145393fee1.tar.xz
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 <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
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c3
1 files changed, 3 insertions, 0 deletions
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;