* is assumed to be a power-of-two. */
 unsigned long intel_gen4_compute_page_offset(struct drm_i915_private *dev_priv,
                                             int *x, int *y,
-                                            unsigned int tiling_mode,
+                                            uint64_t fb_modifier,
                                             unsigned int cpp,
                                             unsigned int pitch)
 {
-       if (tiling_mode != I915_TILING_NONE) {
+       if (fb_modifier != DRM_FORMAT_MOD_NONE) {
                unsigned int tile_rows, tiles;
 
                tile_rows = *y / 8;
 
        if (INTEL_INFO(dev)->gen >= 4) {
                intel_crtc->dspaddr_offset =
-                       intel_gen4_compute_page_offset(dev_priv,
-                                                      &x, &y, obj->tiling_mode,
+                       intel_gen4_compute_page_offset(dev_priv, &x, &y,
+                                                      fb->modifier[0],
                                                       pixel_size,
                                                       fb->pitches[0]);
                linear_offset -= intel_crtc->dspaddr_offset;
 
        linear_offset = y * fb->pitches[0] + x * pixel_size;
        intel_crtc->dspaddr_offset =
-               intel_gen4_compute_page_offset(dev_priv,
-                                              &x, &y, obj->tiling_mode,
+               intel_gen4_compute_page_offset(dev_priv, &x, &y,
+                                              fb->modifier[0],
                                               pixel_size,
                                               fb->pitches[0]);
        linear_offset -= intel_crtc->dspaddr_offset;
 
 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
 unsigned long intel_gen4_compute_page_offset(struct drm_i915_private *dev_priv,
                                             int *x, int *y,
-                                            unsigned int tiling_mode,
-                                            unsigned int bpp,
+                                            uint64_t fb_modifier,
+                                            unsigned int cpp,
                                             unsigned int pitch);
 void intel_prepare_reset(struct drm_device *dev);
 void intel_finish_reset(struct drm_device *dev);
 
        crtc_h--;
 
        linear_offset = y * fb->pitches[0] + x * pixel_size;
-       sprsurf_offset = intel_gen4_compute_page_offset(dev_priv,
-                                                       &x, &y,
-                                                       obj->tiling_mode,
+       sprsurf_offset = intel_gen4_compute_page_offset(dev_priv, &x, &y,
+                                                       fb->modifier[0],
                                                        pixel_size,
                                                        fb->pitches[0]);
        linear_offset -= sprsurf_offset;
                sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
 
        linear_offset = y * fb->pitches[0] + x * pixel_size;
-       sprsurf_offset =
-               intel_gen4_compute_page_offset(dev_priv,
-                                              &x, &y, obj->tiling_mode,
-                                              pixel_size, fb->pitches[0]);
+       sprsurf_offset = intel_gen4_compute_page_offset(dev_priv, &x, &y,
+                                                       fb->modifier[0],
+                                                       pixel_size,
+                                                       fb->pitches[0]);
        linear_offset -= sprsurf_offset;
 
        if (plane_state->base.rotation == BIT(DRM_ROTATE_180)) {
                dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
 
        linear_offset = y * fb->pitches[0] + x * pixel_size;
-       dvssurf_offset =
-               intel_gen4_compute_page_offset(dev_priv,
-                                              &x, &y, obj->tiling_mode,
-                                              pixel_size, fb->pitches[0]);
+       dvssurf_offset = intel_gen4_compute_page_offset(dev_priv, &x, &y,
+                                                       fb->modifier[0],
+                                                       pixel_size,
+                                                       fb->pitches[0]);
        linear_offset -= dvssurf_offset;
 
        if (plane_state->base.rotation == BIT(DRM_ROTATE_180)) {