diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 105 |
1 files changed, 39 insertions, 66 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 14d2a64193b2..03604a37931c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -52,30 +52,36 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder, struct drm_atomic_state *state = crtc_state->uapi.state; struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder); struct intel_dp *intel_dp = &intel_mst->primary->dp; + struct drm_dp_mst_topology_state *mst_state; struct intel_connector *connector = to_intel_connector(conn_state->connector); struct drm_i915_private *i915 = to_i915(connector->base.dev); const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; - bool constant_n = drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CONSTANT_N); int bpp, slots = -EINVAL; + mst_state = drm_atomic_get_mst_topology_state(state, &intel_dp->mst_mgr); + if (IS_ERR(mst_state)) + return PTR_ERR(mst_state); + crtc_state->lane_count = limits->max_lane_count; crtc_state->port_clock = limits->max_rate; + // TODO: Handle pbn_div changes by adding a new MST helper + if (!mst_state->pbn_div) { + mst_state->pbn_div = drm_dp_get_vc_payload_bw(&intel_dp->mst_mgr, + limits->max_rate, + limits->max_lane_count); + } + for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) { crtc_state->pipe_bpp = bpp; crtc_state->pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, crtc_state->pipe_bpp, false); - - slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr, - connector->port, - crtc_state->pbn, - drm_dp_get_vc_payload_bw(&intel_dp->mst_mgr, - crtc_state->port_clock, - crtc_state->lane_count)); + slots = drm_dp_atomic_find_time_slots(state, &intel_dp->mst_mgr, + connector->port, crtc_state->pbn); if (slots == -EDEADLK) return slots; if (slots >= 0) @@ -93,7 +99,7 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder, adjusted_mode->crtc_clock, crtc_state->port_clock, &crtc_state->dp_m_n, - constant_n, crtc_state->fec_enable); + crtc_state->fec_enable); crtc_state->dp_m_n.tu = slots; return 0; @@ -308,14 +314,8 @@ intel_dp_mst_atomic_check(struct drm_connector *connector, struct drm_atomic_state *_state) { struct intel_atomic_state *state = to_intel_atomic_state(_state); - struct drm_connector_state *new_conn_state = - drm_atomic_get_new_connector_state(&state->base, connector); - struct drm_connector_state *old_conn_state = - drm_atomic_get_old_connector_state(&state->base, connector); struct intel_connector *intel_connector = to_intel_connector(connector); - struct drm_crtc *new_crtc = new_conn_state->crtc; - struct drm_dp_mst_topology_mgr *mgr; int ret; ret = intel_digital_connector_atomic_check(connector, &state->base); @@ -326,28 +326,9 @@ intel_dp_mst_atomic_check(struct drm_connector *connector, if (ret) return ret; - if (!old_conn_state->crtc) - return 0; - - /* We only want to free VCPI if this state disables the CRTC on this - * connector - */ - if (new_crtc) { - struct intel_crtc *crtc = to_intel_crtc(new_crtc); - struct intel_crtc_state *crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); - - if (!crtc_state || - !drm_atomic_crtc_needs_modeset(&crtc_state->uapi) || - crtc_state->uapi.enable) - return 0; - } - - mgr = &enc_to_mst(to_intel_encoder(old_conn_state->best_encoder))->primary->dp.mst_mgr; - ret = drm_dp_atomic_release_vcpi_slots(&state->base, mgr, - intel_connector->port); - - return ret; + return drm_dp_atomic_release_time_slots(&state->base, + &intel_connector->mst_port->mst_mgr, + intel_connector->port); } static void clear_act_sent(struct intel_encoder *encoder, @@ -383,21 +364,17 @@ static void intel_mst_disable_dp(struct intel_atomic_state *state, struct intel_dp *intel_dp = &dig_port->dp; struct intel_connector *connector = to_intel_connector(old_conn_state->connector); + struct drm_dp_mst_topology_state *mst_state = + drm_atomic_get_mst_topology_state(&state->base, &intel_dp->mst_mgr); struct drm_i915_private *i915 = to_i915(connector->base.dev); - int start_slot = intel_dp_is_uhbr(old_crtc_state) ? 0 : 1; - int ret; drm_dbg_kms(&i915->drm, "active links %d\n", intel_dp->active_mst_links); intel_hdcp_disable(intel_mst->connector); - drm_dp_mst_reset_vcpi_slots(&intel_dp->mst_mgr, connector->port); - - ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr, start_slot); - if (ret) { - drm_dbg_kms(&i915->drm, "failed to update payload %d\n", ret); - } + drm_dp_remove_payload(&intel_dp->mst_mgr, mst_state, + drm_atomic_get_mst_payload_state(mst_state, connector->port)); intel_audio_codec_disable(encoder, old_crtc_state, old_conn_state); } @@ -425,8 +402,6 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state, intel_disable_transcoder(old_crtc_state); - drm_dp_update_payload_part2(&intel_dp->mst_mgr); - clear_act_sent(encoder, old_crtc_state); intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder), @@ -434,8 +409,6 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state, wait_for_act_sent(encoder, old_crtc_state); - drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, connector->port); - intel_ddi_disable_transcoder_func(old_crtc_state); if (DISPLAY_VER(dev_priv) >= 9) @@ -502,7 +475,8 @@ static void intel_mst_pre_enable_dp(struct intel_atomic_state *state, struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_connector *connector = to_intel_connector(conn_state->connector); - int start_slot = intel_dp_is_uhbr(pipe_config) ? 0 : 1; + struct drm_dp_mst_topology_state *mst_state = + drm_atomic_get_new_mst_topology_state(&state->base, &intel_dp->mst_mgr); int ret; bool first_mst_stream; @@ -528,16 +502,13 @@ static void intel_mst_pre_enable_dp(struct intel_atomic_state *state, dig_port->base.pre_enable(state, &dig_port->base, pipe_config, NULL); - ret = drm_dp_mst_allocate_vcpi(&intel_dp->mst_mgr, - connector->port, - pipe_config->pbn, - pipe_config->dp_m_n.tu); - if (!ret) - drm_err(&dev_priv->drm, "failed to allocate vcpi\n"); - intel_dp->active_mst_links++; - ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr, start_slot); + ret = drm_dp_add_payload_part1(&intel_dp->mst_mgr, mst_state, + drm_atomic_get_mst_payload_state(mst_state, connector->port)); + if (ret < 0) + drm_err(&dev_priv->drm, "Failed to create MST payload for %s: %d\n", + connector->base.name, ret); /* * Before Gen 12 this is not done as part of @@ -560,7 +531,10 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state, struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder); struct intel_digital_port *dig_port = intel_mst->primary; struct intel_dp *intel_dp = &dig_port->dp; + struct intel_connector *connector = to_intel_connector(conn_state->connector); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct drm_dp_mst_topology_state *mst_state = + drm_atomic_get_new_mst_topology_state(&state->base, &intel_dp->mst_mgr); enum transcoder trans = pipe_config->cpu_transcoder; drm_WARN_ON(&dev_priv->drm, pipe_config->has_pch_encoder); @@ -588,9 +562,13 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state, wait_for_act_sent(encoder, pipe_config); - drm_dp_update_payload_part2(&intel_dp->mst_mgr); + drm_dp_add_payload_part2(&intel_dp->mst_mgr, &state->base, + drm_atomic_get_mst_payload_state(mst_state, connector->port)); - if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable) + if (DISPLAY_VER(dev_priv) >= 14 && pipe_config->fec_enable) + intel_de_rmw(dev_priv, MTL_CHICKEN_TRANS(trans), 0, + FECSTALL_DIS_DPTSTREAM_DPTTG); + else if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable) intel_de_rmw(dev_priv, CHICKEN_TRANS(trans), 0, FECSTALL_DIS_DPTSTREAM_DPTTG); @@ -972,8 +950,6 @@ intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_base_id) struct intel_dp *intel_dp = &dig_port->dp; enum port port = dig_port->base.port; int ret; - int max_source_rate = - intel_dp->source_rates[intel_dp->num_source_rates - 1]; if (!HAS_DP_MST(i915) || intel_dp_is_edp(intel_dp)) return 0; @@ -989,10 +965,7 @@ intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_base_id) /* create encoders */ intel_dp_create_fake_mst_encoders(dig_port); ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, &i915->drm, - &intel_dp->aux, 16, 3, - dig_port->max_lanes, - max_source_rate, - conn_base_id); + &intel_dp->aux, 16, 3, conn_base_id); if (ret) { intel_dp->mst_mgr.cbs = NULL; return ret; |