@@ -747,16 +747,22 @@ nv50_msto_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
- struct nv50_mstc *mstc = nv50_mstc(conn_state->connector);
+ struct drm_atomic_state *state = crtc_state->state;
+ struct drm_connector *connector = conn_state->connector;
+ struct nv50_mstc *mstc = nv50_mstc(connector);
struct nv50_mstm *mstm = mstc->mstm;
- int bpp = conn_state->connector->display_info.bpc * 3;
+ int bpp = connector->display_info.bpc * 3;
int slots;
- mstc->pbn = drm_dp_calc_pbn_mode(crtc_state->adjusted_mode.clock, bpp);
-
- slots = drm_dp_find_vcpi_slots(&mstm->mgr, mstc->pbn);
- if (slots < 0)
- return slots;
+ mstc->pbn = drm_dp_calc_pbn_mode(crtc_state->adjusted_mode.clock,
+ bpp);
+ /* Zombies don't need VCPI */
+ if (!drm_connector_is_unregistered(connector)) {
+ slots = drm_dp_atomic_find_vcpi_slots(state, &mstm->mgr,
+ mstc->port, mstc->pbn);
+ if (slots < 0)
+ return slots;
+ }
return nv50_outp_atomic_check_view(encoder, crtc_state, conn_state,
mstc->native);
@@ -920,12 +926,38 @@ nv50_mstc_get_modes(struct drm_connector *connector)
return ret;
}
+static int
+nv50_mstc_atomic_check(struct drm_connector *connector,
+ struct drm_connector_state *new_conn_state)
+{
+ struct drm_atomic_state *state = new_conn_state->state;
+ struct nv50_mstc *mstc = nv50_mstc(connector);
+ struct drm_dp_mst_topology_mgr *mgr = &mstc->mstm->mgr;
+ struct drm_connector_state *old_conn_state;
+ struct drm_crtc *old_crtc;
+
+ old_conn_state = drm_atomic_get_old_connector_state(state, connector);
+ old_crtc = old_conn_state->crtc;
+
+ /* We only need to release VCPI here if we're going from having a CRTC
+ * on this connector, to not having one
+ */
+ if (!old_crtc || new_conn_state->crtc)
+ return 0;
+
+ /* Release the previous VCPI allocation since the encoder's
+ * atomic_check() won't be called
+ */
+ return drm_dp_atomic_release_vcpi_slots(state, mgr, mstc->port);
+}
+
static const struct drm_connector_helper_funcs
nv50_mstc_help = {
.get_modes = nv50_mstc_get_modes,
.mode_valid = nv50_mstc_mode_valid,
.best_encoder = nv50_mstc_best_encoder,
.atomic_best_encoder = nv50_mstc_atomic_best_encoder,
+ .atomic_check = nv50_mstc_atomic_check,
};
static enum drm_connector_status
@@ -2109,6 +2141,10 @@ nv50_disp_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
return ret;
}
+ ret = drm_dp_mst_atomic_check(state);
+ if (ret)
+ return ret;
+
return 0;
}