drm/xe/pf: Disable display in admin only PF mode

Admin-only PF mode does not expose media or 3D execution capabilities
to userspace, so display pipelines cannot receive rendered content.

Fixes: d88c4ba ("drm/xe/pf: Restrict device query responses in admin-only PF mode")
Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Piotr Piórkowski <piotr.piorkowski@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://patch.msgid.link/20260714053259.504308-2-satyanarayana.k.v.p@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 7ef55ae)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

Author: ksatya-dev

drivers/gpu/drm/xe/xe_device.c

@@ -426,7 +426,6 @@ static const struct drm_ioctl_desc xe_ioctls_admin_only[] = {
 
 static const struct drm_driver admin_only_driver = {
 	.driver_features =
-	    XE_DISPLAY_DRIVER_FEATURES |
 	    DRIVER_GEM | DRIVER_RENDER | DRIVER_GEM_GPUVA,
 	.open = xe_file_open,
 	.postclose = xe_file_close,
@@ -438,7 +437,6 @@ static const struct drm_driver admin_only_driver = {
 	.major = DRIVER_MAJOR,
 	.minor = DRIVER_MINOR,
 	.patchlevel = DRIVER_PATCHLEVEL,
-	XE_DISPLAY_DRIVER_OPS,
 };
 
 /**

drivers/gpu/drm/xe/xe_pci.c

@@ -788,7 +788,8 @@ static int xe_info_init_early(struct xe_device *xe,
 
 	xe->info.probe_display = IS_ENABLED(CONFIG_DRM_XE_DISPLAY) &&
 				 xe_modparam.probe_display &&
-				 desc->has_display;
+				 desc->has_display &&
+				 !xe_device_is_admin_only(xe);
 	xe->info.force_execlist = xe_modparam.force_execlist;
 
 	xe_assert(xe, desc->max_gt_per_tile > 0);