drm/xe: Do not attempt to bootstrap VF in execlists mode

[ Upstream commit f3b5945 ]

It was mentioned in a review that there is a possibility of choosing
to load the module with VF in execlists mode.

Of course this doesn't work, just bomb out as hard as possible.

Reviewed-by: Lucas De Marchi <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Maarten Lankhorst <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
(cherry picked from commit c9db43696ed0e2f834d1a525a6bf8433374ad3c2)
Signed-off-by: Jack Vogel <[email protected]>

Author: Maarten Lankhorst

drivers/gpu/drm/xe/xe_gt_sriov_vf.c

@@ -235,6 +235,9 @@ int xe_gt_sriov_vf_bootstrap(struct xe_gt *gt)
 {
 	int err;
 
+	if (!xe_device_uc_enabled(gt_to_xe(gt)))
+		return -ENODEV;
+
 	err = vf_reset_guc_state(gt);
 	if (unlikely(err))
 		return err;