diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 8c599b4c2c2c59cc1cfd1f430a2617667a9d0959..cb5c9ee27b7cc90abb6957488136fe3a0990b0d9 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -12260,88 +12260,121 @@ static bool c8_planes_changed(const struct intel_crtc_state *new_crtc_state)
return !old_crtc_state->c8_planes != !new_crtc_state->c8_planes;
}
-static int icl_add_sync_mode_crtcs(struct intel_crtc_state *crtc_state)
+static bool
+intel_atomic_is_master_connector(struct intel_crtc_state *crtc_state)
+{
+ struct drm_crtc *crtc = crtc_state->uapi.crtc;
+ struct drm_atomic_state *state = crtc_state->uapi.state;
+ struct drm_connector *connector;
+ struct drm_connector_state *connector_state;
+ int i;
+
+ for_each_new_connector_in_state(state, connector, connector_state, i) {
+ if (connector_state->crtc != crtc)
+ continue;
+ if (connector->has_tile &&
+ connector->tile_h_loc == connector->num_h_tile - 1 &&
+ connector->tile_v_loc == connector->num_v_tile - 1)
+ return true;
+ }
+
+ return false;
+}
+
+static void reset_port_sync_mode_state(struct intel_crtc_state *crtc_state)
+{
+ crtc_state->master_transcoder = INVALID_TRANSCODER;
+ crtc_state->sync_mode_slaves_mask = 0;
+}
+
+static int icl_compute_port_sync_crtc_state(struct drm_connector *connector,
+ struct intel_crtc_state *crtc_state,
+ int num_tiled_conns)
{
struct drm_crtc *crtc = crtc_state->uapi.crtc;
struct intel_atomic_state *state = to_intel_atomic_state(crtc_state->uapi.state);
struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
- struct drm_connector *master_connector, *connector;
- struct drm_connector_state *connector_state;
+ struct drm_connector *master_connector;
struct drm_connector_list_iter conn_iter;
struct drm_crtc *master_crtc = NULL;
struct drm_crtc_state *master_crtc_state;
struct intel_crtc_state *master_pipe_config;
- int i, tile_group_id;
if (INTEL_GEN(dev_priv) < 11)
return 0;
+ if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP))
+ return 0;
+
/*
* In case of tiled displays there could be one or more slaves but there is
* only one master. Lets make the CRTC used by the connector corresponding
* to the last horizonal and last vertical tile a master/genlock CRTC.
* All the other CRTCs corresponding to other tiles of the same Tile group
* are the slave CRTCs and hold a pointer to their genlock CRTC.
+ * If all tiles not present do not make master slave assignments.
*/
- for_each_new_connector_in_state(&state->base, connector, connector_state, i) {
- if (connector_state->crtc != crtc)
- continue;
- if (!connector->has_tile)
+ if (!connector->has_tile ||
+ crtc_state->hw.mode.hdisplay != connector->tile_h_size ||
+ crtc_state->hw.mode.vdisplay != connector->tile_v_size ||
+ num_tiled_conns < connector->num_h_tile * connector->num_v_tile) {
+ reset_port_sync_mode_state(crtc_state);
+ return 0;
+ }
+ /* Last Horizontal and last vertical tile connector is a master
+ * Master's crtc state is already populated in slave for port sync
+ */
+ if (connector->tile_h_loc == connector->num_h_tile - 1 &&
+ connector->tile_v_loc == connector->num_v_tile - 1)
+ return 0;
+
+ /* Loop through all connectors and configure the Slave crtc_state
+ * to point to the correct master.
+ */
+ drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter);
+ drm_for_each_connector_iter(master_connector, &conn_iter) {
+ struct drm_connector_state *master_conn_state = NULL;
+
+ if (!(master_connector->has_tile &&
+ master_connector->tile_group->id == connector->tile_group->id))
continue;
- if (crtc_state->hw.mode.hdisplay != connector->tile_h_size ||
- crtc_state->hw.mode.vdisplay != connector->tile_v_size)
- return 0;
- if (connector->tile_h_loc == connector->num_h_tile - 1 &&
- connector->tile_v_loc == connector->num_v_tile - 1)
+ if (master_connector->tile_h_loc != master_connector->num_h_tile - 1 ||
+ master_connector->tile_v_loc != master_connector->num_v_tile - 1)
continue;
- crtc_state->sync_mode_slaves_mask = 0;
- tile_group_id = connector->tile_group->id;
- drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter);
- drm_for_each_connector_iter(master_connector, &conn_iter) {
- struct drm_connector_state *master_conn_state = NULL;
- if (!master_connector->has_tile)
- continue;
- if (master_connector->tile_h_loc != master_connector->num_h_tile - 1 ||
- master_connector->tile_v_loc != master_connector->num_v_tile - 1)
- continue;
- if (master_connector->tile_group->id != tile_group_id)
- continue;
-
- master_conn_state = drm_atomic_get_connector_state(&state->base,
- master_connector);
- if (IS_ERR(master_conn_state)) {
- drm_connector_list_iter_end(&conn_iter);
- return PTR_ERR(master_conn_state);
- }
- if (master_conn_state->crtc) {
- master_crtc = master_conn_state->crtc;
- break;
- }
+ master_conn_state = drm_atomic_get_connector_state(&state->base,
+ master_connector);
+ if (IS_ERR(master_conn_state)) {
+ drm_connector_list_iter_end(&conn_iter);
+ return PTR_ERR(master_conn_state);
}
- drm_connector_list_iter_end(&conn_iter);
-
- if (!master_crtc) {
- DRM_DEBUG_KMS("Could not find Master CRTC for Slave CRTC %d\n",
- connector_state->crtc->base.id);
- return -EINVAL;
+ if (master_conn_state->crtc) {
+ master_crtc = master_conn_state->crtc;
+ break;
}
+ }
+ drm_connector_list_iter_end(&conn_iter);
- master_crtc_state = drm_atomic_get_crtc_state(&state->base,
- master_crtc);
- if (IS_ERR(master_crtc_state))
- return PTR_ERR(master_crtc_state);
-
- master_pipe_config = to_intel_crtc_state(master_crtc_state);
- crtc_state->master_transcoder = master_pipe_config->cpu_transcoder;
- master_pipe_config->sync_mode_slaves_mask |=
- BIT(crtc_state->cpu_transcoder);
- DRM_DEBUG_KMS("Master Transcoder = %s added for Slave CRTC = %d, slave transcoder bitmask = %d\n",
- transcoder_name(crtc_state->master_transcoder),
- crtc_state->uapi.crtc->base.id,
- master_pipe_config->sync_mode_slaves_mask);
+ if (!master_crtc) {
+ DRM_DEBUG_KMS("Could not find Master CRTC for Slave CRTC %d\n",
+ crtc->base.id);
+ return -EINVAL;
}
+ master_crtc_state = drm_atomic_get_crtc_state(&state->base,
+ master_crtc);
+ if (IS_ERR(master_crtc_state))
+ return PTR_ERR(master_crtc_state);
+
+ master_pipe_config = to_intel_crtc_state(master_crtc_state);
+ crtc_state->master_transcoder = master_pipe_config->cpu_transcoder;
+ master_pipe_config->sync_mode_slaves_mask |=
+ BIT(crtc_state->cpu_transcoder);
+ DRM_DEBUG_KMS("Master Transcoder = %s added for Slave CRTC = %d, slave transcoder bitmask = %d\n",
+ transcoder_name(crtc_state->master_transcoder),
+ crtc->base.id,
+ master_pipe_config->sync_mode_slaves_mask);
+
return 0;
}
@@ -12886,9 +12919,11 @@ intel_crtc_prepare_cleared_state(struct intel_crtc_state *crtc_state)
saved_state->wm = crtc_state->wm;
/*
* Save the slave bitmask which gets filled for master crtc state during
- * slave atomic check call.
+ * slave atomic check call. For all other CRTCs reset the port sync variables
+ * crtc_state->master_transcoder needs to be set to INVALID
*/
- if (is_trans_port_sync_master(crtc_state))
+ reset_port_sync_mode_state(saved_state);
+ if (intel_atomic_is_master_connector(crtc_state))
saved_state->sync_mode_slaves_mask =
crtc_state->sync_mode_slaves_mask;
@@ -12909,7 +12944,7 @@ intel_modeset_pipe_config(struct intel_crtc_state *pipe_config)
struct drm_connector *connector;
struct drm_connector_state *connector_state;
int base_bpp, ret;
- int i;
+ int i, tile_group_id = -1, num_tiled_conns = 0;
bool retry = true;
pipe_config->cpu_transcoder =
@@ -12979,13 +13014,22 @@ intel_modeset_pipe_config(struct intel_crtc_state *pipe_config)
drm_mode_set_crtcinfo(&pipe_config->hw.adjusted_mode,
CRTC_STEREO_DOUBLE);
- /* Set the crtc_state defaults for trans_port_sync */
- pipe_config->master_transcoder = INVALID_TRANSCODER;
- ret = icl_add_sync_mode_crtcs(pipe_config);
- if (ret) {
- DRM_DEBUG_KMS("Cannot assign Sync Mode CRTCs: %d\n",
- ret);
- return ret;
+ /* Get tile_group_id of tiled connector */
+ for_each_new_connector_in_state(state, connector, connector_state, i) {
+ if (connector_state->crtc == crtc &&
+ connector->has_tile) {
+ tile_group_id = connector->tile_group->id;
+ break;
+ }
+ }
+
+ /* Get total number of tiled connectors in state that belong to
+ * this tile group.
+ */
+ for_each_new_connector_in_state(state, connector, connector_state, i) {
+ if (connector->has_tile &&
+ connector->tile_group->id == tile_group_id)
+ num_tiled_conns++;
}
/* Pass our mode to the connectors and the CRTC to give them a chance to
@@ -12996,6 +13040,14 @@ intel_modeset_pipe_config(struct intel_crtc_state *pipe_config)
if (connector_state->crtc != crtc)
continue;
+ ret = icl_compute_port_sync_crtc_state(connector, pipe_config,
+ num_tiled_conns);
+ if (ret) {
+ DRM_DEBUG_KMS("Cannot assign Sync Mode CRTCs: %d\n",
+ ret);
+ return ret;
+ }
+
encoder = to_intel_encoder(connector_state->best_encoder);
ret = encoder->compute_config(encoder, pipe_config,
connector_state);