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

v2:
- use DRM_ERROR as it is a fatal message. (Chris)

Suggested-by: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Suggested-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Zhenyu Wang <zhen...@linux.intel.com>
Signed-off-by: Chuanxiao Dong <chuanxiao.d...@intel.com>
---
 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 e2a3f0a..52d5b82 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_ERROR("i915 GVT-g loading failed due to Graphics 
virtualization is not yet supported with GuC submission\n");
+               return -EIO;
+       }
+
        /*
         * We're not in host or fail to find a MPT module, disable GVT-g
         */
-- 
2.7.4

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