fence_to_i915
if (is_y_tiled && HAS_128_BYTE_Y_TILING(fence_to_i915(fence)))
struct drm_i915_private *i915 = fence_to_i915(fence);
return GRAPHICS_VER(fence_to_i915(fence)) < 4;
if (GRAPHICS_VER(fence_to_i915(fence)) >= 6) {