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drm/i915: Check if the GPU hung whilst waiting for the ring to clear
[pandora-kernel.git]
/
drivers
/
gpu
/
drm
/
i915
/
intel_ringbuffer.c
diff --git
a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index
4d00da9
..
2e72d3a
100644
(file)
--- a/
drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/
drivers/gpu/drm/i915/intel_ringbuffer.c
@@
-711,6
+711,8
@@
int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n)
}
msleep(1);
}
msleep(1);
+ if (atomic_read(&dev_priv->mm.wedged))
+ return -EAGAIN;
} while (!time_after(jiffies, end));
trace_i915_ring_wait_end (dev);
return -EBUSY;
} while (!time_after(jiffies, end));
trace_i915_ring_wait_end (dev);
return -EBUSY;