diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 8c599b4c2c2c..cb5c9ee27b7c 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -12260,87 +12260,120 @@ 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) - 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) - 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; - } - } - 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; - } - - 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 (!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 (master_connector->tile_h_loc != master_connector->num_h_tile - 1 || + master_connector->tile_v_loc != master_connector->num_v_tile - 1) + 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; + } + } + drm_connector_list_iter_end(&conn_iter); + + 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 @@ encoder_retry: 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 @@ encoder_retry: 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);