[Bug 110394] Skylake GPU HANG while gstreamer H264 vaapi encoding from MJPEG vaapi decode on drm-tip

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110394

--- Comment #20 from Chris Wilson <chris at chris-wilson.co.uk> ---
So to test the earlier observation that it is rc6-related,

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 8e826a6ab62e..acce2574228b 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -8671,7 +8671,7 @@ static void intel_enable_rc6(struct drm_i915_private
*dev_priv)
        else if (INTEL_GEN(dev_priv) >= 11)
                gen11_enable_rc6(dev_priv);
        else if (INTEL_GEN(dev_priv) >= 9)
-               gen9_enable_rc6(dev_priv);
+               gen9_disable_rc6(dev_priv);
        else if (IS_BROADWELL(dev_priv))
                gen8_enable_rc6(dev_priv);
        else if (INTEL_GEN(dev_priv) >= 6)

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