Currently GVT-g cannot work properly when host GuC submission is
enabled, so make i915 driver loading failed in this case.

Suggested-by: Joonas Lahtinen <[email protected]>
Suggested-by: Chris Wilson <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Chris Wilson <[email protected]>
Cc: Zhenyu Wang <[email protected]>
Signed-off-by: Chuanxiao Dong <[email protected]>
---
 drivers/gpu/drm/i915/intel_gvt.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_gvt.c b/drivers/gpu/drm/i915/intel_gvt.c
index c90d476..63bff89 100644
--- a/drivers/gpu/drm/i915/intel_gvt.c
+++ b/drivers/gpu/drm/i915/intel_gvt.c
@@ -100,6 +100,11 @@ int intel_gvt_init(struct drm_i915_private *dev_priv)
                return -EIO;
        }
 
+       if (i915.enable_guc_submission) {
+               DRM_INFO("Graphics virtualization is not yet supported with GuC 
submission");
+               return -EIO;
+       }
+
        /*
         * We're not in host or fail to find a MPT module, disable GVT-g
         */
-- 
2.7.4

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