drm/i915: Reject tile4 BIOS FB

There is no such thing as tile4 fenced region, so there is no
way to have a linear view of the tile4 framebuffer for the CPU.
Thus we should never encounter a tile4 BIOS FB, but if we somehow
do, then reject it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260410150449.9699-8-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/display/intel_initial_plane.c b/drivers/gpu/drm/i915/display/intel_initial_plane.c
index 4f1591b557527ab356eeff0de6416a286e2d2d03..5a5adf738d4a938ba15891508f6ab0d22e70c6b1 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_initial_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_initial_plane.c
@@ -81,7 +81,6 @@ intel_alloc_initial_plane_obj(struct intel_display *display,
        case DRM_FORMAT_MOD_LINEAR:
        case I915_FORMAT_MOD_X_TILED:
        case I915_FORMAT_MOD_Y_TILED:
-       case I915_FORMAT_MOD_4_TILED:
                break;
        default:
                drm_dbg_kms(display->drm, "Unsupported modifier for initial FB: 0x%llx\n",