diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 123 |
1 files changed, 61 insertions, 62 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 6cb695e506f5..c9be61d2348e 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -286,11 +286,22 @@ static int intel_dp_max_common_rate(struct intel_dp *intel_dp) return intel_dp_common_rate(intel_dp, intel_dp->num_common_rates - 1); } +static int intel_dp_max_source_lane_count(struct intel_digital_port *dig_port) +{ + int vbt_max_lanes = intel_bios_dp_max_lane_count(&dig_port->base); + int max_lanes = dig_port->max_lanes; + + if (vbt_max_lanes) + max_lanes = min(max_lanes, vbt_max_lanes); + + return max_lanes; +} + /* Theoretical max between source and sink */ static int intel_dp_max_common_lane_count(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); - int source_max = dig_port->max_lanes; + int source_max = intel_dp_max_source_lane_count(dig_port); int sink_max = intel_dp->max_sink_lane_count; int fia_max = intel_tc_port_fia_max_lane_count(dig_port); int lttpr_max = drm_dp_lttpr_max_lane_count(intel_dp->lttpr_common_caps); @@ -389,23 +400,13 @@ static int dg2_max_source_rate(struct intel_dp *intel_dp) return intel_dp_is_edp(intel_dp) ? 810000 : 1350000; } -static bool is_low_voltage_sku(struct drm_i915_private *i915, enum phy phy) -{ - u32 voltage; - - voltage = intel_de_read(i915, ICL_PORT_COMP_DW3(phy)) & VOLTAGE_INFO_MASK; - - return voltage == VOLTAGE_INFO_0_85V; -} - static int icl_max_source_rate(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev); enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port); - if (intel_phy_is_combo(dev_priv, phy) && - (is_low_voltage_sku(dev_priv, phy) || !intel_dp_is_edp(intel_dp))) + if (intel_phy_is_combo(dev_priv, phy) && !intel_dp_is_edp(intel_dp)) return 540000; return 810000; @@ -413,23 +414,7 @@ static int icl_max_source_rate(struct intel_dp *intel_dp) static int ehl_max_source_rate(struct intel_dp *intel_dp) { - struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); - struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev); - enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port); - - if (intel_dp_is_edp(intel_dp) || is_low_voltage_sku(dev_priv, phy)) - return 540000; - - return 810000; -} - -static int dg1_max_source_rate(struct intel_dp *intel_dp) -{ - struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); - struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); - enum phy phy = intel_port_to_phy(i915, dig_port->base.port); - - if (intel_phy_is_combo(i915, phy) && is_low_voltage_sku(i915, phy)) + if (intel_dp_is_edp(intel_dp)) return 540000; return 810000; @@ -491,7 +476,7 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp) max_rate = dg2_max_source_rate(intel_dp); else if (IS_ALDERLAKE_P(dev_priv) || IS_ALDERLAKE_S(dev_priv) || IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) - max_rate = dg1_max_source_rate(intel_dp); + max_rate = 810000; else if (IS_JSL_EHL(dev_priv)) max_rate = ehl_max_source_rate(intel_dp); else @@ -720,7 +705,7 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915, if (bigjoiner) { u32 max_bpp_bigjoiner = - i915->max_cdclk_freq * 48 / + i915->display.cdclk.max_cdclk_freq * 48 / intel_dp_mode_to_fec_clock(mode_clock); bits_per_pixel = min(bits_per_pixel, max_bpp_bigjoiner); @@ -1312,21 +1297,45 @@ intel_dp_adjust_compliance_config(struct intel_dp *intel_dp, } } +static bool has_seamless_m_n(struct intel_connector *connector) +{ + struct drm_i915_private *i915 = to_i915(connector->base.dev); + + /* + * Seamless M/N reprogramming only implemented + * for BDW+ double buffered M/N registers so far. + */ + return HAS_DOUBLE_BUFFERED_M_N(i915) && + intel_panel_drrs_type(connector) == DRRS_TYPE_SEAMLESS; +} + +static int intel_dp_mode_clock(const struct intel_crtc_state *crtc_state, + const struct drm_connector_state *conn_state) +{ + struct intel_connector *connector = to_intel_connector(conn_state->connector); + const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + + /* FIXME a bit of a mess wrt clock vs. crtc_clock */ + if (has_seamless_m_n(connector)) + return intel_panel_highest_mode(connector, adjusted_mode)->clock; + else + return adjusted_mode->crtc_clock; +} + /* Optimize link config in order: max bpp, min clock, min lanes */ static int intel_dp_compute_link_config_wide(struct intel_dp *intel_dp, struct intel_crtc_state *pipe_config, + const struct drm_connector_state *conn_state, const struct link_config_limits *limits) { - struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode; - int bpp, i, lane_count; + int bpp, i, lane_count, clock = intel_dp_mode_clock(pipe_config, conn_state); int mode_rate, link_rate, link_avail; for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) { int output_bpp = intel_dp_output_bpp(pipe_config->output_format, bpp); - mode_rate = intel_dp_link_required(adjusted_mode->crtc_clock, - output_bpp); + mode_rate = intel_dp_link_required(clock, output_bpp); for (i = 0; i < intel_dp->num_common_rates; i++) { link_rate = intel_dp_common_rate(intel_dp, i); @@ -1406,6 +1415,7 @@ static int intel_dp_dsc_compute_params(struct intel_encoder *encoder, * DP_DSC_RC_BUF_SIZE for this. */ vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST; + vdsc_cfg->pic_height = crtc_state->hw.adjusted_mode.crtc_vdisplay; /* * Slice Height of 8 works for all currently available panels. So start @@ -1474,6 +1484,11 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, pipe_bpp = intel_dp_dsc_compute_bpp(intel_dp, conn_state->max_requested_bpc); + if (intel_dp->force_dsc_bpc) { + pipe_bpp = intel_dp->force_dsc_bpc * 3; + drm_dbg_kms(&dev_priv->drm, "Input DSC BPP forced to %d", pipe_bpp); + } + /* Min Input BPC for ICL+ is 8 */ if (pipe_bpp < 8 * 3) { drm_dbg_kms(&dev_priv->drm, @@ -1525,28 +1540,12 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, pipe_config->dsc.slice_count = dsc_dp_slice_count; } - /* As of today we support DSC for only RGB */ - if (intel_dp->force_dsc_bpp) { - if (intel_dp->force_dsc_bpp >= 8 && - intel_dp->force_dsc_bpp < pipe_bpp) { - drm_dbg_kms(&dev_priv->drm, - "DSC BPP forced to %d", - intel_dp->force_dsc_bpp); - pipe_config->dsc.compressed_bpp = - intel_dp->force_dsc_bpp; - } else { - drm_dbg_kms(&dev_priv->drm, - "Invalid DSC BPP %d", - intel_dp->force_dsc_bpp); - } - } - /* * VDSC engine operates at 1 Pixel per clock, so if peak pixel rate * is greater than the maximum Cdclock and if slice count is even * then we need to use 2 VDSC instances. */ - if (adjusted_mode->crtc_clock > dev_priv->max_cdclk_freq || + if (adjusted_mode->crtc_clock > dev_priv->display.cdclk.max_cdclk_freq || pipe_config->bigjoiner_pipes) { if (pipe_config->dsc.slice_count < 2) { drm_dbg_kms(&dev_priv->drm, @@ -1636,7 +1635,7 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, * Optimize for slow and wide for everything, because there are some * eDP 1.3 and 1.4 panels don't work well with fast and narrow. */ - ret = intel_dp_compute_link_config_wide(intel_dp, pipe_config, &limits); + ret = intel_dp_compute_link_config_wide(intel_dp, pipe_config, conn_state, &limits); if (ret || joiner_needs_dsc || intel_dp->force_dsc_en) { drm_dbg_kms(&i915->drm, "Try DSC (fallback=%s, joiner=%s, force=%s)\n", @@ -1879,8 +1878,7 @@ intel_dp_compute_hdr_metadata_infoframe_sdp(struct intel_dp *intel_dp, static bool cpu_transcoder_has_drrs(struct drm_i915_private *i915, enum transcoder cpu_transcoder) { - /* M1/N1 is double buffered */ - if (DISPLAY_VER(i915) >= 9 || IS_BROADWELL(i915)) + if (HAS_DOUBLE_BUFFERED_M_N(i915)) return true; return intel_cpu_transcoder_has_m2_n2(i915, cpu_transcoder); @@ -1918,13 +1916,16 @@ static bool can_enable_drrs(struct intel_connector *connector, static void intel_dp_drrs_compute_config(struct intel_connector *connector, struct intel_crtc_state *pipe_config, - int output_bpp, bool constant_n) + int output_bpp) { struct drm_i915_private *i915 = to_i915(connector->base.dev); const struct drm_display_mode *downclock_mode = intel_panel_downclock_mode(connector, &pipe_config->hw.adjusted_mode); int pixel_clock; + if (has_seamless_m_n(connector)) + pipe_config->seamless_m_n = true; + if (!can_enable_drrs(connector, pipe_config, downclock_mode)) { if (intel_cpu_transcoder_has_m2_n2(i915, pipe_config->cpu_transcoder)) intel_zero_m_n(&pipe_config->dp_m2_n2); @@ -1942,7 +1943,7 @@ intel_dp_drrs_compute_config(struct intel_connector *connector, intel_link_compute_m_n(output_bpp, pipe_config->lane_count, pixel_clock, pipe_config->port_clock, &pipe_config->dp_m2_n2, - constant_n, pipe_config->fec_enable); + pipe_config->fec_enable); /* FIXME: abstract this better */ if (pipe_config->splitter.enable) @@ -2017,7 +2018,6 @@ intel_dp_compute_config(struct intel_encoder *encoder, struct intel_dp *intel_dp = enc_to_intel_dp(encoder); const struct drm_display_mode *fixed_mode; struct intel_connector *connector = intel_dp->attached_connector; - bool constant_n = drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_CONSTANT_N); int ret = 0, output_bpp; if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv) && encoder->port != PORT_A) @@ -2096,7 +2096,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, adjusted_mode->crtc_clock, pipe_config->port_clock, &pipe_config->dp_m_n, - constant_n, pipe_config->fec_enable); + pipe_config->fec_enable); /* FIXME: abstract this better */ if (pipe_config->splitter.enable) @@ -2107,8 +2107,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, intel_vrr_compute_config(pipe_config, conn_state); intel_psr_compute_config(intel_dp, pipe_config, conn_state); - intel_dp_drrs_compute_config(connector, pipe_config, - output_bpp, constant_n); + intel_dp_drrs_compute_config(connector, pipe_config, output_bpp); intel_dp_compute_vsc_sdp(intel_dp, pipe_config, conn_state); intel_dp_compute_hdr_metadata_infoframe_sdp(intel_dp, pipe_config, conn_state); @@ -5202,7 +5201,7 @@ intel_edp_add_properties(struct intel_dp *intel_dp) return; drm_connector_set_panel_orientation_with_quirk(&connector->base, - i915->vbt.orientation, + i915->display.vbt.orientation, fixed_mode->hdisplay, fixed_mode->vdisplay); } |