+static int intel_modeset_tile_group(struct intel_atomic_state *state,
+ int tile_group_id)
+{
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ struct drm_connector_list_iter conn_iter;
+ struct drm_connector *connector;
+ int ret = 0;
+
+ drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter);
+ drm_for_each_connector_iter(connector, &conn_iter) {
+ struct drm_connector_state *conn_state;
+ struct intel_crtc_state *crtc_state;
+ struct intel_crtc *crtc;
+
+ if (!connector->has_tile ||
+ connector->tile_group->id != tile_group_id)
+ continue;
+
+ conn_state = drm_atomic_get_connector_state(&state->base,
+ connector);
+ if (IS_ERR(conn_state)) {
+ ret = PTR_ERR(conn_state);
+ break;
+ }
+
+ crtc = to_intel_crtc(conn_state->crtc);
+
+ if (!crtc)
+ continue;
+
+ crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
+ crtc_state->uapi.mode_changed = true;
+
+ ret = drm_atomic_add_affected_planes(&state->base, &crtc->base);
+ if (ret)
+ break;
+ }
+ drm_connector_list_iter_end(&conn_iter);
+
+ return ret;
+}
+
+static int intel_modeset_affected_transcoders(struct intel_atomic_state *state, u8 transcoders)
+{
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ struct intel_crtc *crtc;
+
+ if (transcoders == 0)
+ return 0;
+
+ for_each_intel_crtc(&dev_priv->drm, crtc) {
+ struct intel_crtc_state *crtc_state;
+ int ret;
+
+ crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ if (!crtc_state->hw.enable)
+ continue;
+
+ if (!(transcoders & BIT(crtc_state->cpu_transcoder)))
+ continue;
+
+ crtc_state->uapi.mode_changed = true;
+
+ ret = drm_atomic_add_affected_connectors(&state->base, &crtc->base);
+ if (ret)
+ return ret;
+
+ ret = drm_atomic_add_affected_planes(&state->base, &crtc->base);
+ if (ret)
+ return ret;
+
+ transcoders &= ~BIT(crtc_state->cpu_transcoder);
+ }
+
+ drm_WARN_ON(&dev_priv->drm, transcoders != 0);
+
+ return 0;
+}
+
+static int intel_modeset_synced_crtcs(struct intel_atomic_state *state,
+ struct drm_connector *connector)
+{
+ const struct drm_connector_state *old_conn_state =
+ drm_atomic_get_old_connector_state(&state->base, connector);
+ const struct intel_crtc_state *old_crtc_state;
+ struct intel_crtc *crtc;
+ u8 transcoders;
+
+ crtc = to_intel_crtc(old_conn_state->crtc);
+ if (!crtc)
+ return 0;
+
+ old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc);
+
+ if (!old_crtc_state->hw.active)
+ return 0;
+
+ transcoders = old_crtc_state->sync_mode_slaves_mask;
+ if (old_crtc_state->master_transcoder != INVALID_TRANSCODER)
+ transcoders |= BIT(old_crtc_state->master_transcoder);
+
+ return intel_modeset_affected_transcoders(state,
+ transcoders);
+}
+
+static int intel_dp_connector_atomic_check(struct drm_connector *conn,
+ struct drm_atomic_state *_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(conn->dev);
+ struct intel_atomic_state *state = to_intel_atomic_state(_state);
+ int ret;
+
+ ret = intel_digital_connector_atomic_check(conn, &state->base);
+ if (ret)
+ return ret;
+
+ if (INTEL_GEN(dev_priv) < 11)
+ return 0;
+
+ if (!intel_connector_needs_modeset(state, conn))
+ return 0;
+
+ if (conn->has_tile) {
+ ret = intel_modeset_tile_group(state, conn->tile_group->id);
+ if (ret)
+ return ret;
+ }
+
+ return intel_modeset_synced_crtcs(state, conn);
+}
+