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 | 48 |
1 files changed, 33 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 648cf37e02a8..7b4628f4f124 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -94,12 +94,9 @@ static int intel_dp_mst_find_vcpi_slots_for_bpp(struct intel_encoder *encoder, 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, - crtc_state->port_clock, - crtc_state->lane_count); - } + mst_state->pbn_div = drm_dp_get_vc_payload_bw(&intel_dp->mst_mgr, + crtc_state->port_clock, + crtc_state->lane_count); for (bpp = max_bpp; bpp >= min_bpp; bpp -= step) { drm_dbg_kms(&i915->drm, "Trying bpp %d\n", bpp); @@ -188,8 +185,6 @@ static int intel_dp_dsc_mst_compute_link_config(struct intel_encoder *encoder, struct drm_connector_state *conn_state, struct link_config_limits *limits) { - struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder); - struct intel_dp *intel_dp = &intel_mst->primary->dp; struct intel_connector *connector = to_intel_connector(conn_state->connector); struct drm_i915_private *i915 = to_i915(connector->base.dev); @@ -197,7 +192,7 @@ static int intel_dp_dsc_mst_compute_link_config(struct intel_encoder *encoder, &crtc_state->hw.adjusted_mode; int slots = -EINVAL; int i, num_bpc; - u8 dsc_bpc[3] = {0}; + u8 dsc_bpc[3] = {}; int min_bpp, max_bpp, sink_min_bpp, sink_max_bpp; u8 dsc_max_bpc; bool need_timeslot_recalc = false; @@ -212,7 +207,7 @@ static int intel_dp_dsc_mst_compute_link_config(struct intel_encoder *encoder, max_bpp = min_t(u8, dsc_max_bpc * 3, limits->pipe.max_bpp); min_bpp = limits->pipe.min_bpp; - num_bpc = drm_dp_dsc_sink_supported_input_bpcs(intel_dp->dsc_dpcd, + num_bpc = drm_dp_dsc_sink_supported_input_bpcs(connector->dp.dsc_dpcd, dsc_bpc); drm_dbg_kms(&i915->drm, "DSC Source supported min bpp %d max bpp %d\n", @@ -1001,14 +996,14 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, } if (DISPLAY_VER(dev_priv) >= 10 && - drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd)) { + drm_dp_sink_supports_dsc(intel_connector->dp.dsc_dpcd)) { /* * TBD pass the connector BPC, * for now U8_MAX so that max BPC on that platform would be picked */ - int pipe_bpp = intel_dp_dsc_compute_max_bpp(intel_dp, U8_MAX); + int pipe_bpp = intel_dp_dsc_compute_max_bpp(intel_connector, U8_MAX); - if (drm_dp_sink_supports_fec(intel_dp->fec_capable)) { + if (drm_dp_sink_supports_fec(intel_connector->dp.fec_capability)) { dsc_max_compressed_bpp = intel_dp_dsc_get_max_compressed_bpp(dev_priv, max_link_clock, @@ -1019,7 +1014,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, INTEL_OUTPUT_FORMAT_RGB, pipe_bpp, 64); dsc_slice_count = - intel_dp_dsc_get_slice_count(intel_dp, + intel_dp_dsc_get_slice_count(intel_connector, target_clock, mode->hdisplay, bigjoiner); @@ -1062,7 +1057,7 @@ intel_dp_mst_detect(struct drm_connector *connector, struct intel_connector *intel_connector = to_intel_connector(connector); struct intel_dp *intel_dp = intel_connector->mst_port; - if (!INTEL_DISPLAY_ENABLED(i915)) + if (!intel_display_device_enabled(i915)) return connector_status_disconnected; if (drm_connector_is_unregistered(connector)) @@ -1129,6 +1124,21 @@ static int intel_dp_mst_add_properties(struct intel_dp *intel_dp, return drm_connector_set_path_property(connector, pathprop); } +static void +intel_dp_mst_read_decompression_port_dsc_caps(struct intel_dp *intel_dp, + struct intel_connector *connector) +{ + u8 dpcd_caps[DP_RECEIVER_CAP_SIZE]; + + if (!connector->dp.dsc_decompression_aux) + return; + + if (drm_dp_read_dpcd_caps(connector->dp.dsc_decompression_aux, dpcd_caps) < 0) + return; + + intel_dp_get_dsc_sink_cap(dpcd_caps[DP_DPCD_REV], connector); +} + static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *pathprop) @@ -1162,6 +1172,14 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo drm_connector_helper_add(connector, &intel_dp_mst_connector_helper_funcs); + /* + * TODO: set the AUX for the actual MST port decompressing the stream. + * At the moment the driver only supports enabling this globally in the + * first downstream MST branch, via intel_dp's (root port) AUX. + */ + intel_connector->dp.dsc_decompression_aux = &intel_dp->aux; + intel_dp_mst_read_decompression_port_dsc_caps(intel_dp, intel_connector); + for_each_pipe(dev_priv, pipe) { struct drm_encoder *enc = &intel_dp->mst_encoders[pipe]->base.base; |