[Intel-gfx] [PATCH] drm/i915/gvt: add enable_execlists check before enable gvt

[Chuanxiao Dong]

The GVT-g needs execlists to be enabled otherwise gvt should be
disabled. Add a check for enable_execlists before enabling gvt.

Signed-off-by: Chuanxiao Dong <chuanxiao.dong at 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 d23c0fc..3799cb3 100644
--- a/drivers/gpu/drm/i915/intel_gvt.c
+++ b/drivers/gpu/drm/i915/intel_gvt.c
@@ -77,6 +77,11 @@ int intel_gvt_init(struct drm_i915_private *dev_priv)
 		goto bail;
 	}
 
+	if (!i915.enable_execlists) {
+		DRM_DEBUG_DRIVER("Execlists unsupported, GVT-g is disabled\n");
+		goto bail;
+	}
+
 	/*
 	 * We're not in host or fail to find a MPT module, disable GVT-g
 	 */
-- 
2.7.4