[Intel-gfx] [PATCH v2 13/16] drm/i915: mark rings which were waiting when hang happened

[Mika Kuoppala]

For guilty batchbuffer analysis later on on ring resets,
mark all waiting rings so that we can skip them when
trying to find a true culprit for the gpu hang.

Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
---
 drivers/gpu/drm/i915/i915_irq.c         |    3 ++-
 drivers/gpu/drm/i915/intel_ringbuffer.h |    1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5e91e94..7d13259 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1889,7 +1889,8 @@ void i915_hangcheck_elapsed(unsigned long data)
 				ring->hangcheck_score++;
 
 				/* Kick ring */
-				i915_hangcheck_ring_hung(ring);
+				ring->hangcheck_was_waiting =
+					!i915_hangcheck_ring_hung(ring);
 			} else {
 				ring->hangcheck_score = 0;
 			}
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 97b8f37..573b0ef 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -139,6 +139,7 @@ struct  intel_ring_buffer {
 
 	u32 hangcheck_seqno;
 	int hangcheck_score;
+	bool hangcheck_was_waiting;
 
 	void *private;
 };
-- 
1.7.9.5