| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ville Syrjälä | 8611 | 36.54% | 217 | 28.00% |
| Imre Deak | 2372 | 10.06% | 90 | 11.61% |
| José Roberto de Souza | 1623 | 6.89% | 24 | 3.10% |
| Paulo Zanoni | 1544 | 6.55% | 47 | 6.06% |
| Lucas De Marchi | 1337 | 5.67% | 24 | 3.10% |
| Jani Nikula | 1278 | 5.42% | 86 | 11.10% |
| Manasi D Navare | 974 | 4.13% | 16 | 2.06% |
| Rodrigo Vivi | 962 | 4.08% | 16 | 2.06% |
| Matt Roper | 476 | 2.02% | 20 | 2.58% |
| Ander Conselvan de Oliveira | 377 | 1.60% | 20 | 2.58% |
| Maarten Lankhorst | 365 | 1.55% | 17 | 2.19% |
| Kumar, Mahesh | 352 | 1.49% | 5 | 0.65% |
| Dave Airlie | 335 | 1.42% | 12 | 1.55% |
| Clint Taylor | 316 | 1.34% | 7 | 0.90% |
| Chris Wilson | 278 | 1.18% | 15 | 1.94% |
| Eugeni Dodonov | 266 | 1.13% | 3 | 0.39% |
| Daniel Vetter | 224 | 0.95% | 21 | 2.71% |
| Pankaj Bharadiya | 169 | 0.72% | 4 | 0.52% |
| Ankit Nautiyal | 161 | 0.68% | 6 | 0.77% |
| Hans de Goede | 128 | 0.54% | 2 | 0.26% |
| Shashank Sharma | 124 | 0.53% | 6 | 0.77% |
| Eric Anholt | 124 | 0.53% | 2 | 0.26% |
| Damien Lespiau | 117 | 0.50% | 4 | 0.52% |
| Jesse Barnes | 110 | 0.47% | 6 | 0.77% |
| Anusha Srivatsa | 90 | 0.38% | 3 | 0.39% |
| Sean Paul | 87 | 0.37% | 6 | 0.77% |
| Mika Kahola | 74 | 0.31% | 8 | 1.03% |
| Gwan-gyeong Mun | 60 | 0.25% | 10 | 1.29% |
| Vandana Kannan | 56 | 0.24% | 2 | 0.26% |
| Satheeshakrishna M | 48 | 0.20% | 4 | 0.52% |
| Radhakrishna Sripada | 46 | 0.20% | 2 | 0.26% |
| Stanislav Lisovskiy | 45 | 0.19% | 6 | 0.77% |
| Tvrtko A. Ursulin | 43 | 0.18% | 4 | 0.52% |
| David Weinehall | 40 | 0.17% | 1 | 0.13% |
| Uma Shankar | 34 | 0.14% | 4 | 0.52% |
| Madhav Chauhan | 32 | 0.14% | 3 | 0.39% |
| Stephen Chandler Paul | 23 | 0.10% | 2 | 0.26% |
| Andrzej Hajda | 21 | 0.09% | 1 | 0.13% |
| Antti Koskipaa | 19 | 0.08% | 1 | 0.13% |
| Anshuman Gupta | 18 | 0.08% | 4 | 0.52% |
| Dnyaneshwar Bhadane | 18 | 0.08% | 1 | 0.13% |
| Sonika Jindal | 17 | 0.07% | 2 | 0.26% |
| Luciano Coelho | 14 | 0.06% | 1 | 0.13% |
| Arun R Murthy | 13 | 0.06% | 1 | 0.13% |
| Tomeu Vizoso | 12 | 0.05% | 1 | 0.13% |
| Vandita Kulkarni | 12 | 0.05% | 2 | 0.26% |
| Zhenyu Wang | 10 | 0.04% | 3 | 0.39% |
| Animesh Manna | 10 | 0.04% | 1 | 0.13% |
| Vivek Kasireddy | 10 | 0.04% | 1 | 0.13% |
| Mitul Golani | 9 | 0.04% | 1 | 0.13% |
| Aditya Swarup | 8 | 0.03% | 3 | 0.39% |
| Jouni Högander | 8 | 0.03% | 2 | 0.26% |
| Gaurav K Singh | 7 | 0.03% | 1 | 0.13% |
| Dhinakaran Pandiyan | 6 | 0.03% | 1 | 0.13% |
| Libin Yang | 6 | 0.03% | 1 | 0.13% |
| Vinod Govindapillai | 6 | 0.03% | 1 | 0.13% |
| Stéphane Marchesin | 5 | 0.02% | 1 | 0.13% |
| Ramalingam C | 4 | 0.02% | 2 | 0.26% |
| Zou Nan hai | 4 | 0.02% | 1 | 0.13% |
| Suraj Kandpal | 3 | 0.01% | 1 | 0.13% |
| Chon Ming Lee | 3 | 0.01% | 1 | 0.13% |
| James Ausmus | 3 | 0.01% | 1 | 0.13% |
| Wambui Karuga | 3 | 0.01% | 1 | 0.13% |
| Mika Kuoppala | 2 | 0.01% | 1 | 0.13% |
| Daniele Ceraolo Spurio | 2 | 0.01% | 1 | 0.13% |
| Gustavo A. R. Silva | 2 | 0.01% | 1 | 0.13% |
| Tejas Upadhyay | 2 | 0.01% | 1 | 0.13% |
| Young_X | 2 | 0.01% | 1 | 0.13% |
| Thomas Zimmermann | 2 | 0.01% | 1 | 0.13% |
| Syam Sidhardhan | 1 | 0.00% | 1 | 0.13% |
| Khaled Almahallawy | 1 | 0.00% | 1 | 0.13% |
| Jim Cromie | 1 | 0.00% | 1 | 0.13% |
| Shaohua Li | 1 | 0.00% | 1 | 0.13% |
| Shekhar Chauhan | 1 | 0.00% | 1 | 0.13% |
| Vidya Srinivas | 1 | 0.00% | 1 | 0.13% |
| Wang Xingchao | 1 | 0.00% | 1 | 0.13% |
| Total | 23569 | 775 |
/* * Copyright © 2012 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. * * Authors: * Eugeni Dodonov <eugeni.dodonov@intel.com> * */ #include <linux/iopoll.h> #include <linux/string_helpers.h> #include <drm/display/drm_scdc_helper.h> #include <drm/drm_privacy_screen_consumer.h> #include "i915_drv.h" #include "i915_reg.h" #include "icl_dsi.h" #include "intel_audio.h" #include "intel_audio_regs.h" #include "intel_backlight.h" #include "intel_combo_phy.h" #include "intel_combo_phy_regs.h" #include "intel_connector.h" #include "intel_crtc.h" #include "intel_cx0_phy.h" #include "intel_cx0_phy_regs.h" #include "intel_ddi.h" #include "intel_ddi_buf_trans.h" #include "intel_de.h" #include "intel_display_power.h" #include "intel_display_types.h" #include "intel_dkl_phy.h" #include "intel_dkl_phy_regs.h" #include "intel_dp.h" #include "intel_dp_aux.h" #include "intel_dp_link_training.h" #include "intel_dp_mst.h" #include "intel_dp_tunnel.h" #include "intel_dpio_phy.h" #include "intel_dsi.h" #include "intel_encoder.h" #include "intel_fdi.h" #include "intel_fifo_underrun.h" #include "intel_gmbus.h" #include "intel_hdcp.h" #include "intel_hdmi.h" #include "intel_hotplug.h" #include "intel_hti.h" #include "intel_lspcon.h" #include "intel_mg_phy_regs.h" #include "intel_modeset_lock.h" #include "intel_pps.h" #include "intel_psr.h" #include "intel_quirks.h" #include "intel_snps_phy.h" #include "intel_tc.h" #include "intel_vdsc.h" #include "intel_vdsc_regs.h" #include "skl_scaler.h" #include "skl_universal_plane.h" static const u8 index_to_dp_signal_levels[] = { [0] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_0, [1] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_1, [2] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_2, [3] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_3, [4] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_0, [5] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_1, [6] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_2, [7] = DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_0, [8] = DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_1, [9] = DP_TRAIN_VOLTAGE_SWING_LEVEL_3 | DP_TRAIN_PRE_EMPH_LEVEL_0, }; static int intel_ddi_hdmi_level(struct intel_encoder *encoder, const struct intel_ddi_buf_trans *trans) { int level; level = intel_bios_hdmi_level_shift(encoder->devdata); if (level < 0) level = trans->hdmi_default_entry; return level; } static bool has_buf_trans_select(struct drm_i915_private *i915) { return DISPLAY_VER(i915) < 10 && !IS_BROXTON(i915); } static bool has_iboost(struct drm_i915_private *i915) { return DISPLAY_VER(i915) == 9 && !IS_BROXTON(i915); } /* * Starting with Haswell, DDI port buffers must be programmed with correct * values in advance. This function programs the correct values for * DP/eDP/FDI use cases. */ void hsw_prepare_dp_ddi_buffers(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); u32 iboost_bit = 0; int i, n_entries; enum port port = encoder->port; const struct intel_ddi_buf_trans *trans; trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&dev_priv->drm, !trans)) return; /* If we're boosting the current, set bit 31 of trans1 */ if (has_iboost(dev_priv) && intel_bios_dp_boost_level(encoder->devdata)) iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE; for (i = 0; i < n_entries; i++) { intel_de_write(dev_priv, DDI_BUF_TRANS_LO(port, i), trans->entries[i].hsw.trans1 | iboost_bit); intel_de_write(dev_priv, DDI_BUF_TRANS_HI(port, i), trans->entries[i].hsw.trans2); } } /* * Starting with Haswell, DDI port buffers must be programmed with correct * values in advance. This function programs the correct values for * HDMI/DVI use cases. */ static void hsw_prepare_hdmi_ddi_buffers(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); int level = intel_ddi_level(encoder, crtc_state, 0); u32 iboost_bit = 0; int n_entries; enum port port = encoder->port; const struct intel_ddi_buf_trans *trans; trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&dev_priv->drm, !trans)) return; /* If we're boosting the current, set bit 31 of trans1 */ if (has_iboost(dev_priv) && intel_bios_hdmi_boost_level(encoder->devdata)) iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE; /* Entry 9 is for HDMI: */ intel_de_write(dev_priv, DDI_BUF_TRANS_LO(port, 9), trans->entries[level].hsw.trans1 | iboost_bit); intel_de_write(dev_priv, DDI_BUF_TRANS_HI(port, 9), trans->entries[level].hsw.trans2); } static void mtl_wait_ddi_buf_idle(struct drm_i915_private *i915, enum port port) { int ret; /* FIXME: find out why Bspec's 100us timeout is too short */ ret = wait_for_us((intel_de_read(i915, XELPDP_PORT_BUF_CTL1(i915, port)) & XELPDP_PORT_BUF_PHY_IDLE), 10000); if (ret) drm_err(&i915->drm, "Timeout waiting for DDI BUF %c to get idle\n", port_name(port)); } void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv, enum port port) { if (IS_BROXTON(dev_priv)) { udelay(16); return; } if (wait_for_us((intel_de_read(dev_priv, DDI_BUF_CTL(port)) & DDI_BUF_IS_IDLE), 8)) drm_err(&dev_priv->drm, "Timeout waiting for DDI BUF %c to get idle\n", port_name(port)); } static void intel_wait_ddi_buf_active(struct intel_encoder *encoder) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; int timeout_us; int ret; /* Wait > 518 usecs for DDI_BUF_CTL to be non idle */ if (DISPLAY_VER(dev_priv) < 10) { usleep_range(518, 1000); return; } if (DISPLAY_VER(dev_priv) >= 14) { timeout_us = 10000; } else if (IS_DG2(dev_priv)) { timeout_us = 1200; } else if (DISPLAY_VER(dev_priv) >= 12) { if (intel_encoder_is_tc(encoder)) timeout_us = 3000; else timeout_us = 1000; } else { timeout_us = 500; } if (DISPLAY_VER(dev_priv) >= 14) ret = _wait_for(!(intel_de_read(dev_priv, XELPDP_PORT_BUF_CTL1(dev_priv, port)) & XELPDP_PORT_BUF_PHY_IDLE), timeout_us, 10, 10); else ret = _wait_for(!(intel_de_read(dev_priv, DDI_BUF_CTL(port)) & DDI_BUF_IS_IDLE), timeout_us, 10, 10); if (ret) drm_err(&dev_priv->drm, "Timeout waiting for DDI BUF %c to get active\n", port_name(port)); } static u32 hsw_pll_to_ddi_pll_sel(const struct intel_shared_dpll *pll) { switch (pll->info->id) { case DPLL_ID_WRPLL1: return PORT_CLK_SEL_WRPLL1; case DPLL_ID_WRPLL2: return PORT_CLK_SEL_WRPLL2; case DPLL_ID_SPLL: return PORT_CLK_SEL_SPLL; case DPLL_ID_LCPLL_810: return PORT_CLK_SEL_LCPLL_810; case DPLL_ID_LCPLL_1350: return PORT_CLK_SEL_LCPLL_1350; case DPLL_ID_LCPLL_2700: return PORT_CLK_SEL_LCPLL_2700; default: MISSING_CASE(pll->info->id); return PORT_CLK_SEL_NONE; } } static u32 icl_pll_to_ddi_clk_sel(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { const struct intel_shared_dpll *pll = crtc_state->shared_dpll; int clock = crtc_state->port_clock; const enum intel_dpll_id id = pll->info->id; switch (id) { default: /* * DPLL_ID_ICL_DPLL0 and DPLL_ID_ICL_DPLL1 should not be used * here, so do warn if this get passed in */ MISSING_CASE(id); return DDI_CLK_SEL_NONE; case DPLL_ID_ICL_TBTPLL: switch (clock) { case 162000: return DDI_CLK_SEL_TBT_162; case 270000: return DDI_CLK_SEL_TBT_270; case 540000: return DDI_CLK_SEL_TBT_540; case 810000: return DDI_CLK_SEL_TBT_810; default: MISSING_CASE(clock); return DDI_CLK_SEL_NONE; } case DPLL_ID_ICL_MGPLL1: case DPLL_ID_ICL_MGPLL2: case DPLL_ID_ICL_MGPLL3: case DPLL_ID_ICL_MGPLL4: case DPLL_ID_TGL_MGPLL5: case DPLL_ID_TGL_MGPLL6: return DDI_CLK_SEL_MG; } } static u32 ddi_buf_phy_link_rate(int port_clock) { switch (port_clock) { case 162000: return DDI_BUF_PHY_LINK_RATE(0); case 216000: return DDI_BUF_PHY_LINK_RATE(4); case 243000: return DDI_BUF_PHY_LINK_RATE(5); case 270000: return DDI_BUF_PHY_LINK_RATE(1); case 324000: return DDI_BUF_PHY_LINK_RATE(6); case 432000: return DDI_BUF_PHY_LINK_RATE(7); case 540000: return DDI_BUF_PHY_LINK_RATE(2); case 810000: return DDI_BUF_PHY_LINK_RATE(3); default: MISSING_CASE(port_clock); return DDI_BUF_PHY_LINK_RATE(0); } } static void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); /* DDI_BUF_CTL_ENABLE will be set by intel_ddi_prepare_link_retrain() later */ intel_dp->DP = dig_port->saved_port_bits | DDI_PORT_WIDTH(crtc_state->lane_count) | DDI_BUF_TRANS_SELECT(0); if (DISPLAY_VER(i915) >= 14) { if (intel_dp_is_uhbr(crtc_state)) intel_dp->DP |= DDI_BUF_PORT_DATA_40BIT; else intel_dp->DP |= DDI_BUF_PORT_DATA_10BIT; } if (IS_ALDERLAKE_P(i915) && intel_encoder_is_tc(encoder)) { intel_dp->DP |= ddi_buf_phy_link_rate(crtc_state->port_clock); if (!intel_tc_port_in_tbt_alt_mode(dig_port)) intel_dp->DP |= DDI_BUF_CTL_TC_PHY_OWNERSHIP; } } static int icl_calc_tbt_pll_link(struct drm_i915_private *dev_priv, enum port port) { u32 val = intel_de_read(dev_priv, DDI_CLK_SEL(port)) & DDI_CLK_SEL_MASK; switch (val) { case DDI_CLK_SEL_NONE: return 0; case DDI_CLK_SEL_TBT_162: return 162000; case DDI_CLK_SEL_TBT_270: return 270000; case DDI_CLK_SEL_TBT_540: return 540000; case DDI_CLK_SEL_TBT_810: return 810000; default: MISSING_CASE(val); return 0; } } static void ddi_dotclock_get(struct intel_crtc_state *pipe_config) { /* CRT dotclock is determined via other means */ if (pipe_config->has_pch_encoder) return; pipe_config->hw.adjusted_mode.crtc_clock = intel_crtc_dotclock(pipe_config); } void intel_ddi_set_dp_msa(const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; u32 temp; if (!intel_crtc_has_dp_encoder(crtc_state)) return; drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder)); temp = DP_MSA_MISC_SYNC_CLOCK; switch (crtc_state->pipe_bpp) { case 18: temp |= DP_MSA_MISC_6_BPC; break; case 24: temp |= DP_MSA_MISC_8_BPC; break; case 30: temp |= DP_MSA_MISC_10_BPC; break; case 36: temp |= DP_MSA_MISC_12_BPC; break; default: MISSING_CASE(crtc_state->pipe_bpp); break; } /* nonsense combination */ drm_WARN_ON(&dev_priv->drm, crtc_state->limited_color_range && crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB); if (crtc_state->limited_color_range) temp |= DP_MSA_MISC_COLOR_CEA_RGB; /* * As per DP 1.2 spec section 2.3.4.3 while sending * YCBCR 444 signals we should program MSA MISC1/0 fields with * colorspace information. */ if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) temp |= DP_MSA_MISC_COLOR_YCBCR_444_BT709; /* * As per DP 1.4a spec section 2.2.4.3 [MSA Field for Indication * of Color Encoding Format and Content Color Gamut] while sending * YCBCR 420, HDR BT.2020 signals we should program MSA MISC1 fields * which indicate VSC SDP for the Pixel Encoding/Colorimetry Format. */ if (intel_dp_needs_vsc_sdp(crtc_state, conn_state)) temp |= DP_MSA_MISC_COLOR_VSC_SDP; intel_de_write(dev_priv, TRANS_MSA_MISC(dev_priv, cpu_transcoder), temp); } static u32 bdw_trans_port_sync_master_select(enum transcoder master_transcoder) { if (master_transcoder == TRANSCODER_EDP) return 0; else return master_transcoder + 1; } static void intel_ddi_config_transcoder_dp2(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; u32 val = 0; if (intel_dp_is_uhbr(crtc_state)) val = TRANS_DP2_128B132B_CHANNEL_CODING; intel_de_write(i915, TRANS_DP2_CTL(cpu_transcoder), val); } /* * Returns the TRANS_DDI_FUNC_CTL value based on CRTC state. * * Only intended to be used by intel_ddi_enable_transcoder_func() and * intel_ddi_config_transcoder_func(). */ static u32 intel_ddi_transcoder_func_reg_val_get(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum pipe pipe = crtc->pipe; enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; enum port port = encoder->port; u32 temp; /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */ temp = TRANS_DDI_FUNC_ENABLE; if (DISPLAY_VER(dev_priv) >= 12) temp |= TGL_TRANS_DDI_SELECT_PORT(port); else temp |= TRANS_DDI_SELECT_PORT(port); switch (crtc_state->pipe_bpp) { default: MISSING_CASE(crtc_state->pipe_bpp); fallthrough; case 18: temp |= TRANS_DDI_BPC_6; break; case 24: temp |= TRANS_DDI_BPC_8; break; case 30: temp |= TRANS_DDI_BPC_10; break; case 36: temp |= TRANS_DDI_BPC_12; break; } if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_PVSYNC) temp |= TRANS_DDI_PVSYNC; if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_PHSYNC) temp |= TRANS_DDI_PHSYNC; if (cpu_transcoder == TRANSCODER_EDP) { switch (pipe) { default: MISSING_CASE(pipe); fallthrough; case PIPE_A: /* On Haswell, can only use the always-on power well for * eDP when not using the panel fitter, and when not * using motion blur mitigation (which we don't * support). */ if (crtc_state->pch_pfit.force_thru) temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; else temp |= TRANS_DDI_EDP_INPUT_A_ON; break; case PIPE_B: temp |= TRANS_DDI_EDP_INPUT_B_ONOFF; break; case PIPE_C: temp |= TRANS_DDI_EDP_INPUT_C_ONOFF; break; } } if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { if (crtc_state->has_hdmi_sink) temp |= TRANS_DDI_MODE_SELECT_HDMI; else temp |= TRANS_DDI_MODE_SELECT_DVI; if (crtc_state->hdmi_scrambling) temp |= TRANS_DDI_HDMI_SCRAMBLING; if (crtc_state->hdmi_high_tmds_clock_ratio) temp |= TRANS_DDI_HIGH_TMDS_CHAR_RATE; if (DISPLAY_VER(dev_priv) >= 14) temp |= TRANS_DDI_PORT_WIDTH(crtc_state->lane_count); } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) { temp |= TRANS_DDI_MODE_SELECT_FDI_OR_128B132B; temp |= (crtc_state->fdi_lanes - 1) << 1; } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) { if (intel_dp_is_uhbr(crtc_state)) temp |= TRANS_DDI_MODE_SELECT_FDI_OR_128B132B; else temp |= TRANS_DDI_MODE_SELECT_DP_MST; temp |= DDI_PORT_WIDTH(crtc_state->lane_count); if (DISPLAY_VER(dev_priv) >= 12) { enum transcoder master; master = crtc_state->mst_master_transcoder; drm_WARN_ON(&dev_priv->drm, master == INVALID_TRANSCODER); temp |= TRANS_DDI_MST_TRANSPORT_SELECT(master); } } else { temp |= TRANS_DDI_MODE_SELECT_DP_SST; temp |= DDI_PORT_WIDTH(crtc_state->lane_count); } if (IS_DISPLAY_VER(dev_priv, 8, 10) && crtc_state->master_transcoder != INVALID_TRANSCODER) { u8 master_select = bdw_trans_port_sync_master_select(crtc_state->master_transcoder); temp |= TRANS_DDI_PORT_SYNC_ENABLE | TRANS_DDI_PORT_SYNC_MASTER_SELECT(master_select); } return temp; } void intel_ddi_enable_transcoder_func(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; if (DISPLAY_VER(dev_priv) >= 11) { enum transcoder master_transcoder = crtc_state->master_transcoder; u32 ctl2 = 0; if (master_transcoder != INVALID_TRANSCODER) { u8 master_select = bdw_trans_port_sync_master_select(master_transcoder); ctl2 |= PORT_SYNC_MODE_ENABLE | PORT_SYNC_MODE_MASTER_SELECT(master_select); } intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL2(dev_priv, cpu_transcoder), ctl2); } intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder), intel_ddi_transcoder_func_reg_val_get(encoder, crtc_state)); } /* * Same as intel_ddi_enable_transcoder_func(), but it does not set the enable * bit. */ static void intel_ddi_config_transcoder_func(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; u32 ctl; ctl = intel_ddi_transcoder_func_reg_val_get(encoder, crtc_state); ctl &= ~TRANS_DDI_FUNC_ENABLE; intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder), ctl); } void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state) { struct intel_display *display = to_intel_display(crtc_state); struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; u32 ctl; if (DISPLAY_VER(dev_priv) >= 11) intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL2(dev_priv, cpu_transcoder), 0); ctl = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder)); drm_WARN_ON(crtc->base.dev, ctl & TRANS_DDI_HDCP_SIGNALLING); ctl &= ~TRANS_DDI_FUNC_ENABLE; if (IS_DISPLAY_VER(dev_priv, 8, 10)) ctl &= ~(TRANS_DDI_PORT_SYNC_ENABLE | TRANS_DDI_PORT_SYNC_MASTER_SELECT_MASK); if (DISPLAY_VER(dev_priv) >= 12) { if (!intel_dp_mst_is_master_trans(crtc_state)) { ctl &= ~(TGL_TRANS_DDI_PORT_MASK | TRANS_DDI_MODE_SELECT_MASK); } } else { ctl &= ~(TRANS_DDI_PORT_MASK | TRANS_DDI_MODE_SELECT_MASK); } intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder), ctl); if (intel_has_quirk(display, QUIRK_INCREASE_DDI_DISABLED_TIME) && intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { drm_dbg_kms(display->drm, "Quirk Increase DDI disabled time\n"); /* Quirk time at 100ms for reliable operation */ msleep(100); } } int intel_ddi_toggle_hdcp_bits(struct intel_encoder *intel_encoder, enum transcoder cpu_transcoder, bool enable, u32 hdcp_mask) { struct drm_device *dev = intel_encoder->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); intel_wakeref_t wakeref; int ret = 0; wakeref = intel_display_power_get_if_enabled(dev_priv, intel_encoder->power_domain); if (drm_WARN_ON(dev, !wakeref)) return -ENXIO; intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder), hdcp_mask, enable ? hdcp_mask : 0); intel_display_power_put(dev_priv, intel_encoder->power_domain, wakeref); return ret; } bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector) { struct drm_device *dev = intel_connector->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); struct intel_encoder *encoder = intel_attached_encoder(intel_connector); int type = intel_connector->base.connector_type; enum port port = encoder->port; enum transcoder cpu_transcoder; intel_wakeref_t wakeref; enum pipe pipe = 0; u32 tmp; bool ret; wakeref = intel_display_power_get_if_enabled(dev_priv, encoder->power_domain); if (!wakeref) return false; if (!encoder->get_hw_state(encoder, &pipe)) { ret = false; goto out; } if (HAS_TRANSCODER(dev_priv, TRANSCODER_EDP) && port == PORT_A) cpu_transcoder = TRANSCODER_EDP; else cpu_transcoder = (enum transcoder) pipe; tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder)); switch (tmp & TRANS_DDI_MODE_SELECT_MASK) { case TRANS_DDI_MODE_SELECT_HDMI: case TRANS_DDI_MODE_SELECT_DVI: ret = type == DRM_MODE_CONNECTOR_HDMIA; break; case TRANS_DDI_MODE_SELECT_DP_SST: ret = type == DRM_MODE_CONNECTOR_eDP || type == DRM_MODE_CONNECTOR_DisplayPort; break; case TRANS_DDI_MODE_SELECT_DP_MST: /* if the transcoder is in MST state then * connector isn't connected */ ret = false; break; case TRANS_DDI_MODE_SELECT_FDI_OR_128B132B: if (HAS_DP20(dev_priv)) /* 128b/132b */ ret = false; else /* FDI */ ret = type == DRM_MODE_CONNECTOR_VGA; break; default: ret = false; break; } out: intel_display_power_put(dev_priv, encoder->power_domain, wakeref); return ret; } static void intel_ddi_get_encoder_pipes(struct intel_encoder *encoder, u8 *pipe_mask, bool *is_dp_mst) { struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); enum port port = encoder->port; intel_wakeref_t wakeref; enum pipe p; u32 tmp; u8 mst_pipe_mask; *pipe_mask = 0; *is_dp_mst = false; wakeref = intel_display_power_get_if_enabled(dev_priv, encoder->power_domain); if (!wakeref) return; tmp = intel_de_read(dev_priv, DDI_BUF_CTL(port)); if (!(tmp & DDI_BUF_CTL_ENABLE)) goto out; if (HAS_TRANSCODER(dev_priv, TRANSCODER_EDP) && port == PORT_A) { tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_EDP)); switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { default: MISSING_CASE(tmp & TRANS_DDI_EDP_INPUT_MASK); fallthrough; case TRANS_DDI_EDP_INPUT_A_ON: case TRANS_DDI_EDP_INPUT_A_ONOFF: *pipe_mask = BIT(PIPE_A); break; case TRANS_DDI_EDP_INPUT_B_ONOFF: *pipe_mask = BIT(PIPE_B); break; case TRANS_DDI_EDP_INPUT_C_ONOFF: *pipe_mask = BIT(PIPE_C); break; } goto out; } mst_pipe_mask = 0; for_each_pipe(dev_priv, p) { enum transcoder cpu_transcoder = (enum transcoder)p; unsigned int port_mask, ddi_select; intel_wakeref_t trans_wakeref; trans_wakeref = intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_TRANSCODER(cpu_transcoder)); if (!trans_wakeref) continue; if (DISPLAY_VER(dev_priv) >= 12) { port_mask = TGL_TRANS_DDI_PORT_MASK; ddi_select = TGL_TRANS_DDI_SELECT_PORT(port); } else { port_mask = TRANS_DDI_PORT_MASK; ddi_select = TRANS_DDI_SELECT_PORT(port); } tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder)); intel_display_power_put(dev_priv, POWER_DOMAIN_TRANSCODER(cpu_transcoder), trans_wakeref); if ((tmp & port_mask) != ddi_select) continue; if ((tmp & TRANS_DDI_MODE_SELECT_MASK) == TRANS_DDI_MODE_SELECT_DP_MST || (HAS_DP20(dev_priv) && (tmp & TRANS_DDI_MODE_SELECT_MASK) == TRANS_DDI_MODE_SELECT_FDI_OR_128B132B)) mst_pipe_mask |= BIT(p); *pipe_mask |= BIT(p); } if (!*pipe_mask) drm_dbg_kms(&dev_priv->drm, "No pipe for [ENCODER:%d:%s] found\n", encoder->base.base.id, encoder->base.name); if (!mst_pipe_mask && hweight8(*pipe_mask) > 1) { drm_dbg_kms(&dev_priv->drm, "Multiple pipes for [ENCODER:%d:%s] (pipe_mask %02x)\n", encoder->base.base.id, encoder->base.name, *pipe_mask); *pipe_mask = BIT(ffs(*pipe_mask) - 1); } if (mst_pipe_mask && mst_pipe_mask != *pipe_mask) drm_dbg_kms(&dev_priv->drm, "Conflicting MST and non-MST state for [ENCODER:%d:%s] (pipe_mask %02x mst_pipe_mask %02x)\n", encoder->base.base.id, encoder->base.name, *pipe_mask, mst_pipe_mask); else *is_dp_mst = mst_pipe_mask; out: if (*pipe_mask && (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))) { tmp = intel_de_read(dev_priv, BXT_PHY_CTL(port)); if ((tmp & (BXT_PHY_CMNLANE_POWERDOWN_ACK | BXT_PHY_LANE_POWERDOWN_ACK | BXT_PHY_LANE_ENABLED)) != BXT_PHY_LANE_ENABLED) drm_err(&dev_priv->drm, "[ENCODER:%d:%s] enabled but PHY powered down? (PHY_CTL %08x)\n", encoder->base.base.id, encoder->base.name, tmp); } intel_display_power_put(dev_priv, encoder->power_domain, wakeref); } bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe) { u8 pipe_mask; bool is_mst; intel_ddi_get_encoder_pipes(encoder, &pipe_mask, &is_mst); if (is_mst || !pipe_mask) return false; *pipe = ffs(pipe_mask) - 1; return true; } static enum intel_display_power_domain intel_ddi_main_link_aux_domain(struct intel_digital_port *dig_port, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); /* * ICL+ HW requires corresponding AUX IOs to be powered up for PSR with * DC states enabled at the same time, while for driver initiated AUX * transfers we need the same AUX IOs to be powered but with DC states * disabled. Accordingly use the AUX_IO_<port> power domain here which * leaves DC states enabled. * * Before MTL TypeC PHYs (in all TypeC modes and both DP/HDMI) also require * AUX IO to be enabled, but all these require DC_OFF to be enabled as * well, so we can acquire a wider AUX_<port> power domain reference * instead of a specific AUX_IO_<port> reference without powering up any * extra wells. */ if (intel_encoder_can_psr(&dig_port->base)) return intel_display_power_aux_io_domain(i915, dig_port->aux_ch); else if (DISPLAY_VER(i915) < 14 && (intel_crtc_has_dp_encoder(crtc_state) || intel_encoder_is_tc(&dig_port->base))) return intel_aux_power_domain(dig_port); else return POWER_DOMAIN_INVALID; } static void main_link_aux_power_domain_get(struct intel_digital_port *dig_port, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); enum intel_display_power_domain domain = intel_ddi_main_link_aux_domain(dig_port, crtc_state); drm_WARN_ON(&i915->drm, dig_port->aux_wakeref); if (domain == POWER_DOMAIN_INVALID) return; dig_port->aux_wakeref = intel_display_power_get(i915, domain); } static void main_link_aux_power_domain_put(struct intel_digital_port *dig_port, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); enum intel_display_power_domain domain = intel_ddi_main_link_aux_domain(dig_port, crtc_state); intel_wakeref_t wf; wf = fetch_and_zero(&dig_port->aux_wakeref); if (!wf) return; intel_display_power_put(i915, domain, wf); } static void intel_ddi_get_power_domains(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_digital_port *dig_port; /* * TODO: Add support for MST encoders. Atm, the following should never * happen since fake-MST encoders don't set their get_power_domains() * hook. */ if (drm_WARN_ON(&dev_priv->drm, intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST))) return; dig_port = enc_to_dig_port(encoder); if (!intel_tc_port_in_tbt_alt_mode(dig_port)) { drm_WARN_ON(&dev_priv->drm, dig_port->ddi_io_wakeref); dig_port->ddi_io_wakeref = intel_display_power_get(dev_priv, dig_port->ddi_io_power_domain); } main_link_aux_power_domain_get(dig_port, crtc_state); } void intel_ddi_enable_transcoder_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; enum phy phy = intel_encoder_to_phy(encoder); u32 val; if (cpu_transcoder == TRANSCODER_EDP) return; if (DISPLAY_VER(dev_priv) >= 13) val = TGL_TRANS_CLK_SEL_PORT(phy); else if (DISPLAY_VER(dev_priv) >= 12) val = TGL_TRANS_CLK_SEL_PORT(encoder->port); else val = TRANS_CLK_SEL_PORT(encoder->port); intel_de_write(dev_priv, TRANS_CLK_SEL(cpu_transcoder), val); } void intel_ddi_disable_transcoder_clock(const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; u32 val; if (cpu_transcoder == TRANSCODER_EDP) return; if (DISPLAY_VER(dev_priv) >= 12) val = TGL_TRANS_CLK_SEL_DISABLED; else val = TRANS_CLK_SEL_DISABLED; intel_de_write(dev_priv, TRANS_CLK_SEL(cpu_transcoder), val); } static void _skl_ddi_set_iboost(struct drm_i915_private *dev_priv, enum port port, u8 iboost) { u32 tmp; tmp = intel_de_read(dev_priv, DISPIO_CR_TX_BMU_CR0); tmp &= ~(BALANCE_LEG_MASK(port) | BALANCE_LEG_DISABLE(port)); if (iboost) tmp |= iboost << BALANCE_LEG_SHIFT(port); else tmp |= BALANCE_LEG_DISABLE(port); intel_de_write(dev_priv, DISPIO_CR_TX_BMU_CR0, tmp); } static void skl_ddi_set_iboost(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, int level) { struct intel_digital_port *dig_port = enc_to_dig_port(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); u8 iboost; if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) iboost = intel_bios_hdmi_boost_level(encoder->devdata); else iboost = intel_bios_dp_boost_level(encoder->devdata); if (iboost == 0) { const struct intel_ddi_buf_trans *trans; int n_entries; trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&dev_priv->drm, !trans)) return; iboost = trans->entries[level].hsw.i_boost; } /* Make sure that the requested I_boost is valid */ if (iboost && iboost != 0x1 && iboost != 0x3 && iboost != 0x7) { drm_err(&dev_priv->drm, "Invalid I_boost value %u\n", iboost); return; } _skl_ddi_set_iboost(dev_priv, encoder->port, iboost); if (encoder->port == PORT_A && dig_port->max_lanes == 4) _skl_ddi_set_iboost(dev_priv, PORT_E, iboost); } static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state) { struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); int n_entries; encoder->get_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON(&dev_priv->drm, n_entries < 1)) n_entries = 1; if (drm_WARN_ON(&dev_priv->drm, n_entries > ARRAY_SIZE(index_to_dp_signal_levels))) n_entries = ARRAY_SIZE(index_to_dp_signal_levels); return index_to_dp_signal_levels[n_entries - 1] & DP_TRAIN_VOLTAGE_SWING_MASK; } /* * We assume that the full set of pre-emphasis values can be * used on all DDI platforms. Should that change we need to * rethink this code. */ static u8 intel_ddi_dp_preemph_max(struct intel_dp *intel_dp) { return DP_TRAIN_PRE_EMPH_LEVEL_3; } static u32 icl_combo_phy_loadgen_select(const struct intel_crtc_state *crtc_state, int lane) { if (crtc_state->port_clock > 600000) return 0; if (crtc_state->lane_count == 4) return lane >= 1 ? LOADGEN_SELECT : 0; else return lane == 1 || lane == 2 ? LOADGEN_SELECT : 0; } static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); const struct intel_ddi_buf_trans *trans; enum phy phy = intel_encoder_to_phy(encoder); int n_entries, ln; u32 val; trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&dev_priv->drm, !trans)) return; if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); val = EDP4K2K_MODE_OVRD_EN | EDP4K2K_MODE_OVRD_OPTIMIZED; intel_dp->hobl_active = is_hobl_buf_trans(trans); intel_de_rmw(dev_priv, ICL_PORT_CL_DW10(phy), val, intel_dp->hobl_active ? val : 0); } /* Set PORT_TX_DW5 */ val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy)); val &= ~(SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK | TAP2_DISABLE | TAP3_DISABLE); val |= SCALING_MODE_SEL(0x2); val |= RTERM_SELECT(0x6); val |= TAP3_DISABLE; intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), val); /* Program PORT_TX_DW2 */ for (ln = 0; ln < 4; ln++) { int level = intel_ddi_level(encoder, crtc_state, ln); intel_de_rmw(dev_priv, ICL_PORT_TX_DW2_LN(ln, phy), SWING_SEL_UPPER_MASK | SWING_SEL_LOWER_MASK | RCOMP_SCALAR_MASK, SWING_SEL_UPPER(trans->entries[level].icl.dw2_swing_sel) | SWING_SEL_LOWER(trans->entries[level].icl.dw2_swing_sel) | RCOMP_SCALAR(0x98)); } /* Program PORT_TX_DW4 */ /* We cannot write to GRP. It would overwrite individual loadgen. */ for (ln = 0; ln < 4; ln++) { int level = intel_ddi_level(encoder, crtc_state, ln); intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_LN(ln, phy), POST_CURSOR_1_MASK | POST_CURSOR_2_MASK | CURSOR_COEFF_MASK, POST_CURSOR_1(trans->entries[level].icl.dw4_post_cursor_1) | POST_CURSOR_2(trans->entries[level].icl.dw4_post_cursor_2) | CURSOR_COEFF(trans->entries[level].icl.dw4_cursor_coeff)); } /* Program PORT_TX_DW7 */ for (ln = 0; ln < 4; ln++) { int level = intel_ddi_level(encoder, crtc_state, ln); intel_de_rmw(dev_priv, ICL_PORT_TX_DW7_LN(ln, phy), N_SCALAR_MASK, N_SCALAR(trans->entries[level].icl.dw7_n_scalar)); } } static void icl_combo_phy_set_signal_levels(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); u32 val; int ln; /* * 1. If port type is eDP or DP, * set PORT_PCS_DW1 cmnkeeper_enable to 1b, * else clear to 0b. */ val = intel_de_read(dev_priv, ICL_PORT_PCS_DW1_LN(0, phy)); if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) val &= ~COMMON_KEEPER_EN; else val |= COMMON_KEEPER_EN; intel_de_write(dev_priv, ICL_PORT_PCS_DW1_GRP(phy), val); /* 2. Program loadgen select */ /* * Program PORT_TX_DW4 depending on Bit rate and used lanes * <= 6 GHz and 4 lanes (LN0=0, LN1=1, LN2=1, LN3=1) * <= 6 GHz and 1,2 lanes (LN0=0, LN1=1, LN2=1, LN3=0) * > 6 GHz (LN0=0, LN1=0, LN2=0, LN3=0) */ for (ln = 0; ln < 4; ln++) { intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_LN(ln, phy), LOADGEN_SELECT, icl_combo_phy_loadgen_select(crtc_state, ln)); } /* 3. Set PORT_CL_DW5 SUS Clock Config to 11b */ intel_de_rmw(dev_priv, ICL_PORT_CL_DW5(phy), 0, SUS_CLOCK_CONFIG); /* 4. Clear training enable to change swing values */ val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy)); val &= ~TX_TRAINING_EN; intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), val); /* 5. Program swing and de-emphasis */ icl_ddi_combo_vswing_program(encoder, crtc_state); /* 6. Set training enable to trigger update */ val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy)); val |= TX_TRAINING_EN; intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), val); } static void icl_mg_phy_set_signal_levels(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum tc_port tc_port = intel_encoder_to_tc(encoder); const struct intel_ddi_buf_trans *trans; int n_entries, ln; if (intel_tc_port_in_tbt_alt_mode(enc_to_dig_port(encoder))) return; trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&dev_priv->drm, !trans)) return; for (ln = 0; ln < 2; ln++) { intel_de_rmw(dev_priv, MG_TX1_LINK_PARAMS(ln, tc_port), CRI_USE_FS32, 0); intel_de_rmw(dev_priv, MG_TX2_LINK_PARAMS(ln, tc_port), CRI_USE_FS32, 0); } /* Program MG_TX_SWINGCTRL with values from vswing table */ for (ln = 0; ln < 2; ln++) { int level; level = intel_ddi_level(encoder, crtc_state, 2*ln+0); intel_de_rmw(dev_priv, MG_TX1_SWINGCTRL(ln, tc_port), CRI_TXDEEMPH_OVERRIDE_17_12_MASK, CRI_TXDEEMPH_OVERRIDE_17_12(trans->entries[level].mg.cri_txdeemph_override_17_12)); level = intel_ddi_level(encoder, crtc_state, 2*ln+1); intel_de_rmw(dev_priv, MG_TX2_SWINGCTRL(ln, tc_port), CRI_TXDEEMPH_OVERRIDE_17_12_MASK, CRI_TXDEEMPH_OVERRIDE_17_12(trans->entries[level].mg.cri_txdeemph_override_17_12)); } /* Program MG_TX_DRVCTRL with values from vswing table */ for (ln = 0; ln < 2; ln++) { int level; level = intel_ddi_level(encoder, crtc_state, 2*ln+0); intel_de_rmw(dev_priv, MG_TX1_DRVCTRL(ln, tc_port), CRI_TXDEEMPH_OVERRIDE_11_6_MASK | CRI_TXDEEMPH_OVERRIDE_5_0_MASK, CRI_TXDEEMPH_OVERRIDE_11_6(trans->entries[level].mg.cri_txdeemph_override_11_6) | CRI_TXDEEMPH_OVERRIDE_5_0(trans->entries[level].mg.cri_txdeemph_override_5_0) | CRI_TXDEEMPH_OVERRIDE_EN); level = intel_ddi_level(encoder, crtc_state, 2*ln+1); intel_de_rmw(dev_priv, MG_TX2_DRVCTRL(ln, tc_port), CRI_TXDEEMPH_OVERRIDE_11_6_MASK | CRI_TXDEEMPH_OVERRIDE_5_0_MASK, CRI_TXDEEMPH_OVERRIDE_11_6(trans->entries[level].mg.cri_txdeemph_override_11_6) | CRI_TXDEEMPH_OVERRIDE_5_0(trans->entries[level].mg.cri_txdeemph_override_5_0) | CRI_TXDEEMPH_OVERRIDE_EN); /* FIXME: Program CRI_LOADGEN_SEL after the spec is updated */ } /* * Program MG_CLKHUB<LN, port being used> with value from frequency table * In case of Legacy mode on MG PHY, both TX1 and TX2 enabled so use the * values from table for which TX1 and TX2 enabled. */ for (ln = 0; ln < 2; ln++) { intel_de_rmw(dev_priv, MG_CLKHUB(ln, tc_port), CFG_LOW_RATE_LKREN_EN, crtc_state->port_clock < 300000 ? CFG_LOW_RATE_LKREN_EN : 0); } /* Program the MG_TX_DCC<LN, port being used> based on the link frequency */ for (ln = 0; ln < 2; ln++) { intel_de_rmw(dev_priv, MG_TX1_DCC(ln, tc_port), CFG_AMI_CK_DIV_OVERRIDE_VAL_MASK | CFG_AMI_CK_DIV_OVERRIDE_EN, crtc_state->port_clock > 500000 ? CFG_AMI_CK_DIV_OVERRIDE_VAL(1) | CFG_AMI_CK_DIV_OVERRIDE_EN : 0); intel_de_rmw(dev_priv, MG_TX2_DCC(ln, tc_port), CFG_AMI_CK_DIV_OVERRIDE_VAL_MASK | CFG_AMI_CK_DIV_OVERRIDE_EN, crtc_state->port_clock > 500000 ? CFG_AMI_CK_DIV_OVERRIDE_VAL(1) | CFG_AMI_CK_DIV_OVERRIDE_EN : 0); } /* Program MG_TX_PISO_READLOAD with values from vswing table */ for (ln = 0; ln < 2; ln++) { intel_de_rmw(dev_priv, MG_TX1_PISO_READLOAD(ln, tc_port), 0, CRI_CALCINIT); intel_de_rmw(dev_priv, MG_TX2_PISO_READLOAD(ln, tc_port), 0, CRI_CALCINIT); } } static void tgl_dkl_phy_set_signal_levels(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum tc_port tc_port = intel_encoder_to_tc(encoder); const struct intel_ddi_buf_trans *trans; int n_entries, ln; if (intel_tc_port_in_tbt_alt_mode(enc_to_dig_port(encoder))) return; trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&dev_priv->drm, !trans)) return; for (ln = 0; ln < 2; ln++) { int level; intel_dkl_phy_write(dev_priv, DKL_TX_PMD_LANE_SUS(tc_port, ln), 0); level = intel_ddi_level(encoder, crtc_state, 2*ln+0); intel_dkl_phy_rmw(dev_priv, DKL_TX_DPCNTL0(tc_port, ln), DKL_TX_PRESHOOT_COEFF_MASK | DKL_TX_DE_EMPAHSIS_COEFF_MASK | DKL_TX_VSWING_CONTROL_MASK, DKL_TX_PRESHOOT_COEFF(trans->entries[level].dkl.preshoot) | DKL_TX_DE_EMPHASIS_COEFF(trans->entries[level].dkl.de_emphasis) | DKL_TX_VSWING_CONTROL(trans->entries[level].dkl.vswing)); level = intel_ddi_level(encoder, crtc_state, 2*ln+1); intel_dkl_phy_rmw(dev_priv, DKL_TX_DPCNTL1(tc_port, ln), DKL_TX_PRESHOOT_COEFF_MASK | DKL_TX_DE_EMPAHSIS_COEFF_MASK | DKL_TX_VSWING_CONTROL_MASK, DKL_TX_PRESHOOT_COEFF(trans->entries[level].dkl.preshoot) | DKL_TX_DE_EMPHASIS_COEFF(trans->entries[level].dkl.de_emphasis) | DKL_TX_VSWING_CONTROL(trans->entries[level].dkl.vswing)); intel_dkl_phy_rmw(dev_priv, DKL_TX_DPCNTL2(tc_port, ln), DKL_TX_DP20BITMODE, 0); if (IS_ALDERLAKE_P(dev_priv)) { u32 val; if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { if (ln == 0) { val = DKL_TX_DPCNTL2_CFG_LOADGENSELECT_TX1(0); val |= DKL_TX_DPCNTL2_CFG_LOADGENSELECT_TX2(2); } else { val = DKL_TX_DPCNTL2_CFG_LOADGENSELECT_TX1(3); val |= DKL_TX_DPCNTL2_CFG_LOADGENSELECT_TX2(3); } } else { val = DKL_TX_DPCNTL2_CFG_LOADGENSELECT_TX1(0); val |= DKL_TX_DPCNTL2_CFG_LOADGENSELECT_TX2(0); } intel_dkl_phy_rmw(dev_priv, DKL_TX_DPCNTL2(tc_port, ln), DKL_TX_DPCNTL2_CFG_LOADGENSELECT_TX1_MASK | DKL_TX_DPCNTL2_CFG_LOADGENSELECT_TX2_MASK, val); } } } static int translate_signal_level(struct intel_dp *intel_dp, u8 signal_levels) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); int i; for (i = 0; i < ARRAY_SIZE(index_to_dp_signal_levels); i++) { if (index_to_dp_signal_levels[i] == signal_levels) return i; } drm_WARN(&i915->drm, 1, "Unsupported voltage swing/pre-emphasis level: 0x%x\n", signal_levels); return 0; } static int intel_ddi_dp_level(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state, int lane) { u8 train_set = intel_dp->train_set[lane]; if (intel_dp_is_uhbr(crtc_state)) { return train_set & DP_TX_FFE_PRESET_VALUE_MASK; } else { u8 signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK | DP_TRAIN_PRE_EMPHASIS_MASK); return translate_signal_level(intel_dp, signal_levels); } } int intel_ddi_level(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, int lane) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_ddi_buf_trans *trans; int level, n_entries; trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries); if (drm_WARN_ON_ONCE(&i915->drm, !trans)) return 0; if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) level = intel_ddi_hdmi_level(encoder, trans); else level = intel_ddi_dp_level(enc_to_intel_dp(encoder), crtc_state, lane); if (drm_WARN_ON_ONCE(&i915->drm, level >= n_entries)) level = n_entries - 1; return level; } static void hsw_set_signal_levels(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); int level = intel_ddi_level(encoder, crtc_state, 0); enum port port = encoder->port; u32 signal_levels; if (has_iboost(dev_priv)) skl_ddi_set_iboost(encoder, crtc_state, level); /* HDMI ignores the rest */ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) return; signal_levels = DDI_BUF_TRANS_SELECT(level); drm_dbg_kms(&dev_priv->drm, "Using signal levels %08x\n", signal_levels); intel_dp->DP &= ~DDI_BUF_EMP_MASK; intel_dp->DP |= signal_levels; intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP); intel_de_posting_read(dev_priv, DDI_BUF_CTL(port)); } static void _icl_ddi_enable_clock(struct drm_i915_private *i915, i915_reg_t reg, u32 clk_sel_mask, u32 clk_sel, u32 clk_off) { mutex_lock(&i915->display.dpll.lock); intel_de_rmw(i915, reg, clk_sel_mask, clk_sel); /* * "This step and the step before must be * done with separate register writes." */ intel_de_rmw(i915, reg, clk_off, 0); mutex_unlock(&i915->display.dpll.lock); } static void _icl_ddi_disable_clock(struct drm_i915_private *i915, i915_reg_t reg, u32 clk_off) { mutex_lock(&i915->display.dpll.lock); intel_de_rmw(i915, reg, 0, clk_off); mutex_unlock(&i915->display.dpll.lock); } static bool _icl_ddi_is_clock_enabled(struct drm_i915_private *i915, i915_reg_t reg, u32 clk_off) { return !(intel_de_read(i915, reg) & clk_off); } static struct intel_shared_dpll * _icl_ddi_get_pll(struct drm_i915_private *i915, i915_reg_t reg, u32 clk_sel_mask, u32 clk_sel_shift) { enum intel_dpll_id id; id = (intel_de_read(i915, reg) & clk_sel_mask) >> clk_sel_shift; return intel_get_shared_dpll_by_id(i915, id); } static void adls_ddi_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum phy phy = intel_encoder_to_phy(encoder); if (drm_WARN_ON(&i915->drm, !pll)) return; _icl_ddi_enable_clock(i915, ADLS_DPCLKA_CFGCR(phy), ADLS_DPCLKA_CFGCR_DDI_CLK_SEL_MASK(phy), pll->info->id << ADLS_DPCLKA_CFGCR_DDI_SHIFT(phy), ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static void adls_ddi_disable_clock(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); _icl_ddi_disable_clock(i915, ADLS_DPCLKA_CFGCR(phy), ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static bool adls_ddi_is_clock_enabled(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); return _icl_ddi_is_clock_enabled(i915, ADLS_DPCLKA_CFGCR(phy), ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static struct intel_shared_dpll *adls_ddi_get_pll(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); return _icl_ddi_get_pll(i915, ADLS_DPCLKA_CFGCR(phy), ADLS_DPCLKA_CFGCR_DDI_CLK_SEL_MASK(phy), ADLS_DPCLKA_CFGCR_DDI_SHIFT(phy)); } static void rkl_ddi_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum phy phy = intel_encoder_to_phy(encoder); if (drm_WARN_ON(&i915->drm, !pll)) return; _icl_ddi_enable_clock(i915, ICL_DPCLKA_CFGCR0, RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy), RKL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy), RKL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static void rkl_ddi_disable_clock(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); _icl_ddi_disable_clock(i915, ICL_DPCLKA_CFGCR0, RKL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static bool rkl_ddi_is_clock_enabled(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); return _icl_ddi_is_clock_enabled(i915, ICL_DPCLKA_CFGCR0, RKL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static struct intel_shared_dpll *rkl_ddi_get_pll(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); return _icl_ddi_get_pll(i915, ICL_DPCLKA_CFGCR0, RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy), RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(phy)); } static void dg1_ddi_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum phy phy = intel_encoder_to_phy(encoder); if (drm_WARN_ON(&i915->drm, !pll)) return; /* * If we fail this, something went very wrong: first 2 PLLs should be * used by first 2 phys and last 2 PLLs by last phys */ if (drm_WARN_ON(&i915->drm, (pll->info->id < DPLL_ID_DG1_DPLL2 && phy >= PHY_C) || (pll->info->id >= DPLL_ID_DG1_DPLL2 && phy < PHY_C))) return; _icl_ddi_enable_clock(i915, DG1_DPCLKA_CFGCR0(phy), DG1_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy), DG1_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy), DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static void dg1_ddi_disable_clock(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); _icl_ddi_disable_clock(i915, DG1_DPCLKA_CFGCR0(phy), DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static bool dg1_ddi_is_clock_enabled(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); return _icl_ddi_is_clock_enabled(i915, DG1_DPCLKA_CFGCR0(phy), DG1_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static struct intel_shared_dpll *dg1_ddi_get_pll(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); enum intel_dpll_id id; u32 val; val = intel_de_read(i915, DG1_DPCLKA_CFGCR0(phy)); val &= DG1_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy); val >>= DG1_DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(phy); id = val; /* * _DG1_DPCLKA0_CFGCR0 maps between DPLL 0 and 1 with one bit for phy A * and B while _DG1_DPCLKA1_CFGCR0 maps between DPLL 2 and 3 with one * bit for phy C and D. */ if (phy >= PHY_C) id += DPLL_ID_DG1_DPLL2; return intel_get_shared_dpll_by_id(i915, id); } static void icl_ddi_combo_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum phy phy = intel_encoder_to_phy(encoder); if (drm_WARN_ON(&i915->drm, !pll)) return; _icl_ddi_enable_clock(i915, ICL_DPCLKA_CFGCR0, ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy), ICL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy), ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static void icl_ddi_combo_disable_clock(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); _icl_ddi_disable_clock(i915, ICL_DPCLKA_CFGCR0, ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } static bool icl_ddi_combo_is_clock_enabled(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); return _icl_ddi_is_clock_enabled(i915, ICL_DPCLKA_CFGCR0, ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy)); } struct intel_shared_dpll *icl_ddi_combo_get_pll(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); return _icl_ddi_get_pll(i915, ICL_DPCLKA_CFGCR0, ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy), ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_SHIFT(phy)); } static void jsl_ddi_tc_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum port port = encoder->port; if (drm_WARN_ON(&i915->drm, !pll)) return; /* * "For DDIC and DDID, program DDI_CLK_SEL to map the MG clock to the port. * MG does not exist, but the programming is required to ungate DDIC and DDID." */ intel_de_write(i915, DDI_CLK_SEL(port), DDI_CLK_SEL_MG); icl_ddi_combo_enable_clock(encoder, crtc_state); } static void jsl_ddi_tc_disable_clock(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; icl_ddi_combo_disable_clock(encoder); intel_de_write(i915, DDI_CLK_SEL(port), DDI_CLK_SEL_NONE); } static bool jsl_ddi_tc_is_clock_enabled(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; u32 tmp; tmp = intel_de_read(i915, DDI_CLK_SEL(port)); if ((tmp & DDI_CLK_SEL_MASK) == DDI_CLK_SEL_NONE) return false; return icl_ddi_combo_is_clock_enabled(encoder); } static void icl_ddi_tc_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum tc_port tc_port = intel_encoder_to_tc(encoder); enum port port = encoder->port; if (drm_WARN_ON(&i915->drm, !pll)) return; intel_de_write(i915, DDI_CLK_SEL(port), icl_pll_to_ddi_clk_sel(encoder, crtc_state)); mutex_lock(&i915->display.dpll.lock); intel_de_rmw(i915, ICL_DPCLKA_CFGCR0, ICL_DPCLKA_CFGCR0_TC_CLK_OFF(tc_port), 0); mutex_unlock(&i915->display.dpll.lock); } static void icl_ddi_tc_disable_clock(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum tc_port tc_port = intel_encoder_to_tc(encoder); enum port port = encoder->port; mutex_lock(&i915->display.dpll.lock); intel_de_rmw(i915, ICL_DPCLKA_CFGCR0, 0, ICL_DPCLKA_CFGCR0_TC_CLK_OFF(tc_port)); mutex_unlock(&i915->display.dpll.lock); intel_de_write(i915, DDI_CLK_SEL(port), DDI_CLK_SEL_NONE); } static bool icl_ddi_tc_is_clock_enabled(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum tc_port tc_port = intel_encoder_to_tc(encoder); enum port port = encoder->port; u32 tmp; tmp = intel_de_read(i915, DDI_CLK_SEL(port)); if ((tmp & DDI_CLK_SEL_MASK) == DDI_CLK_SEL_NONE) return false; tmp = intel_de_read(i915, ICL_DPCLKA_CFGCR0); return !(tmp & ICL_DPCLKA_CFGCR0_TC_CLK_OFF(tc_port)); } static struct intel_shared_dpll *icl_ddi_tc_get_pll(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum tc_port tc_port = intel_encoder_to_tc(encoder); enum port port = encoder->port; enum intel_dpll_id id; u32 tmp; tmp = intel_de_read(i915, DDI_CLK_SEL(port)); switch (tmp & DDI_CLK_SEL_MASK) { case DDI_CLK_SEL_TBT_162: case DDI_CLK_SEL_TBT_270: case DDI_CLK_SEL_TBT_540: case DDI_CLK_SEL_TBT_810: id = DPLL_ID_ICL_TBTPLL; break; case DDI_CLK_SEL_MG: id = icl_tc_port_to_pll_id(tc_port); break; default: MISSING_CASE(tmp); fallthrough; case DDI_CLK_SEL_NONE: return NULL; } return intel_get_shared_dpll_by_id(i915, id); } static struct intel_shared_dpll *bxt_ddi_get_pll(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum intel_dpll_id id; switch (encoder->port) { case PORT_A: id = DPLL_ID_SKL_DPLL0; break; case PORT_B: id = DPLL_ID_SKL_DPLL1; break; case PORT_C: id = DPLL_ID_SKL_DPLL2; break; default: MISSING_CASE(encoder->port); return NULL; } return intel_get_shared_dpll_by_id(i915, id); } static void skl_ddi_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum port port = encoder->port; if (drm_WARN_ON(&i915->drm, !pll)) return; mutex_lock(&i915->display.dpll.lock); intel_de_rmw(i915, DPLL_CTRL2, DPLL_CTRL2_DDI_CLK_OFF(port) | DPLL_CTRL2_DDI_CLK_SEL_MASK(port), DPLL_CTRL2_DDI_CLK_SEL(pll->info->id, port) | DPLL_CTRL2_DDI_SEL_OVERRIDE(port)); mutex_unlock(&i915->display.dpll.lock); } static void skl_ddi_disable_clock(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; mutex_lock(&i915->display.dpll.lock); intel_de_rmw(i915, DPLL_CTRL2, 0, DPLL_CTRL2_DDI_CLK_OFF(port)); mutex_unlock(&i915->display.dpll.lock); } static bool skl_ddi_is_clock_enabled(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; /* * FIXME Not sure if the override affects both * the PLL selection and the CLK_OFF bit. */ return !(intel_de_read(i915, DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_OFF(port)); } static struct intel_shared_dpll *skl_ddi_get_pll(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; enum intel_dpll_id id; u32 tmp; tmp = intel_de_read(i915, DPLL_CTRL2); /* * FIXME Not sure if the override affects both * the PLL selection and the CLK_OFF bit. */ if ((tmp & DPLL_CTRL2_DDI_SEL_OVERRIDE(port)) == 0) return NULL; id = (tmp & DPLL_CTRL2_DDI_CLK_SEL_MASK(port)) >> DPLL_CTRL2_DDI_CLK_SEL_SHIFT(port); return intel_get_shared_dpll_by_id(i915, id); } void hsw_ddi_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum port port = encoder->port; if (drm_WARN_ON(&i915->drm, !pll)) return; intel_de_write(i915, PORT_CLK_SEL(port), hsw_pll_to_ddi_pll_sel(pll)); } void hsw_ddi_disable_clock(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; intel_de_write(i915, PORT_CLK_SEL(port), PORT_CLK_SEL_NONE); } bool hsw_ddi_is_clock_enabled(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; return intel_de_read(i915, PORT_CLK_SEL(port)) != PORT_CLK_SEL_NONE; } static struct intel_shared_dpll *hsw_ddi_get_pll(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum port port = encoder->port; enum intel_dpll_id id; u32 tmp; tmp = intel_de_read(i915, PORT_CLK_SEL(port)); switch (tmp & PORT_CLK_SEL_MASK) { case PORT_CLK_SEL_WRPLL1: id = DPLL_ID_WRPLL1; break; case PORT_CLK_SEL_WRPLL2: id = DPLL_ID_WRPLL2; break; case PORT_CLK_SEL_SPLL: id = DPLL_ID_SPLL; break; case PORT_CLK_SEL_LCPLL_810: id = DPLL_ID_LCPLL_810; break; case PORT_CLK_SEL_LCPLL_1350: id = DPLL_ID_LCPLL_1350; break; case PORT_CLK_SEL_LCPLL_2700: id = DPLL_ID_LCPLL_2700; break; default: MISSING_CASE(tmp); fallthrough; case PORT_CLK_SEL_NONE: return NULL; } return intel_get_shared_dpll_by_id(i915, id); } void intel_ddi_enable_clock(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { if (encoder->enable_clock) encoder->enable_clock(encoder, crtc_state); } void intel_ddi_disable_clock(struct intel_encoder *encoder) { if (encoder->disable_clock) encoder->disable_clock(encoder); } void intel_ddi_sanitize_encoder_pll_mapping(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); u32 port_mask; bool ddi_clk_needed; /* * In case of DP MST, we sanitize the primary encoder only, not the * virtual ones. */ if (encoder->type == INTEL_OUTPUT_DP_MST) return; if (!encoder->base.crtc && intel_encoder_is_dp(encoder)) { u8 pipe_mask; bool is_mst; intel_ddi_get_encoder_pipes(encoder, &pipe_mask, &is_mst); /* * In the unlikely case that BIOS enables DP in MST mode, just * warn since our MST HW readout is incomplete. */ if (drm_WARN_ON(&i915->drm, is_mst)) return; } port_mask = BIT(encoder->port); ddi_clk_needed = encoder->base.crtc; if (encoder->type == INTEL_OUTPUT_DSI) { struct intel_encoder *other_encoder; port_mask = intel_dsi_encoder_ports(encoder); /* * Sanity check that we haven't incorrectly registered another * encoder using any of the ports of this DSI encoder. */ for_each_intel_encoder(&i915->drm, other_encoder) { if (other_encoder == encoder) continue; if (drm_WARN_ON(&i915->drm, port_mask & BIT(other_encoder->port))) return; } /* * For DSI we keep the ddi clocks gated * except during enable/disable sequence. */ ddi_clk_needed = false; } if (ddi_clk_needed || !encoder->is_clock_enabled || !encoder->is_clock_enabled(encoder)) return; drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] is disabled/in DSI mode with an ungated DDI clock, gate it\n", encoder->base.base.id, encoder->base.name); encoder->disable_clock(encoder); } static void icl_program_mg_dp_mode(struct intel_digital_port *dig_port, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev); enum tc_port tc_port = intel_encoder_to_tc(&dig_port->base); u32 ln0, ln1, pin_assignment; u8 width; if (DISPLAY_VER(dev_priv) >= 14) return; if (!intel_encoder_is_tc(&dig_port->base) || intel_tc_port_in_tbt_alt_mode(dig_port)) return; if (DISPLAY_VER(dev_priv) >= 12) { ln0 = intel_dkl_phy_read(dev_priv, DKL_DP_MODE(tc_port, 0)); ln1 = intel_dkl_phy_read(dev_priv, DKL_DP_MODE(tc_port, 1)); } else { ln0 = intel_de_read(dev_priv, MG_DP_MODE(0, tc_port)); ln1 = intel_de_read(dev_priv, MG_DP_MODE(1, tc_port)); } ln0 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE); ln1 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE); /* DPPATC */ pin_assignment = intel_tc_port_get_pin_assignment_mask(dig_port); width = crtc_state->lane_count; switch (pin_assignment) { case 0x0: drm_WARN_ON(&dev_priv->drm, !intel_tc_port_in_legacy_mode(dig_port)); if (width == 1) { ln1 |= MG_DP_MODE_CFG_DP_X1_MODE; } else { ln0 |= MG_DP_MODE_CFG_DP_X2_MODE; ln1 |= MG_DP_MODE_CFG_DP_X2_MODE; } break; case 0x1: if (width == 4) { ln0 |= MG_DP_MODE_CFG_DP_X2_MODE; ln1 |= MG_DP_MODE_CFG_DP_X2_MODE; } break; case 0x2: if (width == 2) { ln0 |= MG_DP_MODE_CFG_DP_X2_MODE; ln1 |= MG_DP_MODE_CFG_DP_X2_MODE; } break; case 0x3: case 0x5: if (width == 1) { ln0 |= MG_DP_MODE_CFG_DP_X1_MODE; ln1 |= MG_DP_MODE_CFG_DP_X1_MODE; } else { ln0 |= MG_DP_MODE_CFG_DP_X2_MODE; ln1 |= MG_DP_MODE_CFG_DP_X2_MODE; } break; case 0x4: case 0x6: if (width == 1) { ln0 |= MG_DP_MODE_CFG_DP_X1_MODE; ln1 |= MG_DP_MODE_CFG_DP_X1_MODE; } else { ln0 |= MG_DP_MODE_CFG_DP_X2_MODE; ln1 |= MG_DP_MODE_CFG_DP_X2_MODE; } break; default: MISSING_CASE(pin_assignment); } if (DISPLAY_VER(dev_priv) >= 12) { intel_dkl_phy_write(dev_priv, DKL_DP_MODE(tc_port, 0), ln0); intel_dkl_phy_write(dev_priv, DKL_DP_MODE(tc_port, 1), ln1); } else { intel_de_write(dev_priv, MG_DP_MODE(0, tc_port), ln0); intel_de_write(dev_priv, MG_DP_MODE(1, tc_port), ln1); } } static enum transcoder tgl_dp_tp_transcoder(const struct intel_crtc_state *crtc_state) { if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) return crtc_state->mst_master_transcoder; else return crtc_state->cpu_transcoder; } i915_reg_t dp_tp_ctl_reg(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); if (DISPLAY_VER(dev_priv) >= 12) return TGL_DP_TP_CTL(dev_priv, tgl_dp_tp_transcoder(crtc_state)); else return DP_TP_CTL(encoder->port); } i915_reg_t dp_tp_status_reg(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); if (DISPLAY_VER(dev_priv) >= 12) return TGL_DP_TP_STATUS(dev_priv, tgl_dp_tp_transcoder(crtc_state)); else return DP_TP_STATUS(encoder->port); } static void intel_dp_sink_set_msa_timing_par_ignore_state(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state, bool enable) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); if (!crtc_state->vrr.enable) return; if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_DOWNSPREAD_CTRL, enable ? DP_MSA_TIMING_PAR_IGNORE_EN : 0) <= 0) drm_dbg_kms(&i915->drm, "Failed to %s MSA_TIMING_PAR_IGNORE in the sink\n", str_enable_disable(enable)); } static void intel_dp_sink_set_fec_ready(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state, bool enable) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); if (!crtc_state->fec_enable) return; if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_FEC_CONFIGURATION, enable ? DP_FEC_READY : 0) <= 0) drm_dbg_kms(&i915->drm, "Failed to set FEC_READY to %s in the sink\n", enable ? "enabled" : "disabled"); if (enable && drm_dp_dpcd_writeb(&intel_dp->aux, DP_FEC_STATUS, DP_FEC_DECODE_EN_DETECTED | DP_FEC_DECODE_DIS_DETECTED) <= 0) drm_dbg_kms(&i915->drm, "Failed to clear FEC detected flags\n"); } static int read_fec_detected_status(struct drm_dp_aux *aux) { int ret; u8 status; ret = drm_dp_dpcd_readb(aux, DP_FEC_STATUS, &status); if (ret < 0) return ret; return status; } static void wait_for_fec_detected(struct drm_dp_aux *aux, bool enabled) { struct drm_i915_private *i915 = to_i915(aux->drm_dev); int mask = enabled ? DP_FEC_DECODE_EN_DETECTED : DP_FEC_DECODE_DIS_DETECTED; int status; int err; err = readx_poll_timeout(read_fec_detected_status, aux, status, status & mask || status < 0, 10000, 200000); if (!err && status >= 0) return; if (err == -ETIMEDOUT) drm_dbg_kms(&i915->drm, "Timeout waiting for FEC %s to get detected\n", str_enabled_disabled(enabled)); else drm_dbg_kms(&i915->drm, "FEC detected status read error: %d\n", status); } void intel_ddi_wait_for_fec_status(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, bool enabled) { struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); int ret; if (!crtc_state->fec_enable) return; if (enabled) ret = intel_de_wait_for_set(i915, dp_tp_status_reg(encoder, crtc_state), DP_TP_STATUS_FEC_ENABLE_LIVE, 1); else ret = intel_de_wait_for_clear(i915, dp_tp_status_reg(encoder, crtc_state), DP_TP_STATUS_FEC_ENABLE_LIVE, 1); if (ret) drm_err(&i915->drm, "Timeout waiting for FEC live state to get %s\n", str_enabled_disabled(enabled)); /* * At least the Synoptics MST hub doesn't set the detected flag for * FEC decoding disabling so skip waiting for that. */ if (enabled) wait_for_fec_detected(&intel_dp->aux, enabled); } static void intel_ddi_enable_fec(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); if (!crtc_state->fec_enable) return; intel_de_rmw(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), 0, DP_TP_CTL_FEC_ENABLE); } static void intel_ddi_disable_fec(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); if (!crtc_state->fec_enable) return; intel_de_rmw(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), DP_TP_CTL_FEC_ENABLE, 0); intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state)); } static void intel_ddi_power_up_lanes(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); if (intel_encoder_is_combo(encoder)) { enum phy phy = intel_encoder_to_phy(encoder); bool lane_reversal = dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL; intel_combo_phy_power_up_lanes(i915, phy, false, crtc_state->lane_count, lane_reversal); } } /* * Splitter enable for eDP MSO is limited to certain pipes, on certain * platforms. */ static u8 intel_ddi_splitter_pipe_mask(struct drm_i915_private *i915) { if (DISPLAY_VER(i915) > 20) return ~0; else if (IS_ALDERLAKE_P(i915)) return BIT(PIPE_A) | BIT(PIPE_B); else return BIT(PIPE_A); } static void intel_ddi_mso_get_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config) { struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); struct drm_i915_private *i915 = to_i915(crtc->base.dev); enum pipe pipe = crtc->pipe; u32 dss1; if (!HAS_MSO(i915)) return; dss1 = intel_de_read(i915, ICL_PIPE_DSS_CTL1(pipe)); pipe_config->splitter.enable = dss1 & SPLITTER_ENABLE; if (!pipe_config->splitter.enable) return; if (drm_WARN_ON(&i915->drm, !(intel_ddi_splitter_pipe_mask(i915) & BIT(pipe)))) { pipe_config->splitter.enable = false; return; } switch (dss1 & SPLITTER_CONFIGURATION_MASK) { default: drm_WARN(&i915->drm, true, "Invalid splitter configuration, dss1=0x%08x\n", dss1); fallthrough; case SPLITTER_CONFIGURATION_2_SEGMENT: pipe_config->splitter.link_count = 2; break; case SPLITTER_CONFIGURATION_4_SEGMENT: pipe_config->splitter.link_count = 4; break; } pipe_config->splitter.pixel_overlap = REG_FIELD_GET(OVERLAP_PIXELS_MASK, dss1); } static void intel_ddi_mso_configure(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *i915 = to_i915(crtc->base.dev); enum pipe pipe = crtc->pipe; u32 dss1 = 0; if (!HAS_MSO(i915)) return; if (crtc_state->splitter.enable) { dss1 |= SPLITTER_ENABLE; dss1 |= OVERLAP_PIXELS(crtc_state->splitter.pixel_overlap); if (crtc_state->splitter.link_count == 2) dss1 |= SPLITTER_CONFIGURATION_2_SEGMENT; else dss1 |= SPLITTER_CONFIGURATION_4_SEGMENT; } intel_de_rmw(i915, ICL_PIPE_DSS_CTL1(pipe), SPLITTER_ENABLE | SPLITTER_CONFIGURATION_MASK | OVERLAP_PIXELS_MASK, dss1); } static u8 mtl_get_port_width(u8 lane_count) { switch (lane_count) { case 1: return 0; case 2: return 1; case 3: return 4; case 4: return 3; default: MISSING_CASE(lane_count); return 4; } } static void mtl_ddi_enable_d2d(struct intel_encoder *encoder) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; i915_reg_t reg; u32 set_bits, wait_bits; if (DISPLAY_VER(dev_priv) >= 20) { reg = DDI_BUF_CTL(port); set_bits = XE2LPD_DDI_BUF_D2D_LINK_ENABLE; wait_bits = XE2LPD_DDI_BUF_D2D_LINK_STATE; } else { reg = XELPDP_PORT_BUF_CTL1(dev_priv, port); set_bits = XELPDP_PORT_BUF_D2D_LINK_ENABLE; wait_bits = XELPDP_PORT_BUF_D2D_LINK_STATE; } intel_de_rmw(dev_priv, reg, 0, set_bits); if (wait_for_us(intel_de_read(dev_priv, reg) & wait_bits, 100)) { drm_err(&dev_priv->drm, "Timeout waiting for D2D Link enable for DDI/PORT_BUF_CTL %c\n", port_name(port)); } } static void mtl_port_buf_ctl_program(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); enum port port = encoder->port; u32 val; val = intel_de_read(i915, XELPDP_PORT_BUF_CTL1(i915, port)); val &= ~XELPDP_PORT_WIDTH_MASK; val |= XELPDP_PORT_WIDTH(mtl_get_port_width(crtc_state->lane_count)); val &= ~XELPDP_PORT_BUF_PORT_DATA_WIDTH_MASK; if (intel_dp_is_uhbr(crtc_state)) val |= XELPDP_PORT_BUF_PORT_DATA_40BIT; else val |= XELPDP_PORT_BUF_PORT_DATA_10BIT; if (dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL) val |= XELPDP_PORT_REVERSAL; intel_de_write(i915, XELPDP_PORT_BUF_CTL1(i915, port), val); } static void mtl_port_buf_ctl_io_selection(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); u32 val; val = intel_tc_port_in_tbt_alt_mode(dig_port) ? XELPDP_PORT_BUF_IO_SELECT_TBT : 0; intel_de_rmw(i915, XELPDP_PORT_BUF_CTL1(i915, encoder->port), XELPDP_PORT_BUF_IO_SELECT_TBT, val); } static void mtl_ddi_pre_enable_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST); intel_dp_set_link_params(intel_dp, crtc_state->port_clock, crtc_state->lane_count); /* * We only configure what the register value will be here. Actual * enabling happens during link training farther down. */ intel_ddi_init_dp_buf_reg(encoder, crtc_state); /* * 1. Enable Power Wells * * This was handled at the beginning of intel_atomic_commit_tail(), * before we called down into this function. */ /* 2. PMdemand was already set */ /* 3. Select Thunderbolt */ mtl_port_buf_ctl_io_selection(encoder); /* 4. Enable Panel Power if PPS is required */ intel_pps_on(intel_dp); /* 5. Enable the port PLL */ intel_ddi_enable_clock(encoder, crtc_state); /* * 6.a Configure Transcoder Clock Select to direct the Port clock to the * Transcoder. */ intel_ddi_enable_transcoder_clock(encoder, crtc_state); /* * 6.b If DP v2.0/128b mode - Configure TRANS_DP2_CTL register settings. */ intel_ddi_config_transcoder_dp2(encoder, crtc_state); /* * 6.c Configure TRANS_DDI_FUNC_CTL DDI Select, DDI Mode Select & MST * Transport Select */ intel_ddi_config_transcoder_func(encoder, crtc_state); /* * 6.e Program CoG/MSO configuration bits in DSS_CTL1 if selected. */ intel_ddi_mso_configure(crtc_state); if (!is_mst) intel_dp_set_power(intel_dp, DP_SET_POWER_D0); intel_dp_configure_protocol_converter(intel_dp, crtc_state); if (!is_mst) intel_dp_sink_enable_decompression(state, to_intel_connector(conn_state->connector), crtc_state); /* * DDI FEC: "anticipates enabling FEC encoding sets the FEC_READY bit * in the FEC_CONFIGURATION register to 1 before initiating link * training */ intel_dp_sink_set_fec_ready(intel_dp, crtc_state, true); intel_dp_check_frl_training(intel_dp); intel_dp_pcon_dsc_configure(intel_dp, crtc_state); /* * 6. The rest of the below are substeps under the bspec's "Enable and * Train Display Port" step. Note that steps that are specific to * MST will be handled by intel_mst_pre_enable_dp() before/after it * calls into this function. Also intel_mst_pre_enable_dp() only calls * us when active_mst_links==0, so any steps designated for "single * stream or multi-stream master transcoder" can just be performed * unconditionally here. * * mtl_ddi_prepare_link_retrain() that is called by * intel_dp_start_link_train() will execute steps: 6.d, 6.f, 6.g, 6.h, * 6.i and 6.j * * 6.k Follow DisplayPort specification training sequence (see notes for * failure handling) * 6.m If DisplayPort multi-stream - Set DP_TP_CTL link training to Idle * Pattern, wait for 5 idle patterns (DP_TP_STATUS Min_Idles_Sent) * (timeout after 800 us) */ intel_dp_start_link_train(state, intel_dp, crtc_state); /* 6.n Set DP_TP_CTL link training to Normal */ if (!is_trans_port_sync_mode(crtc_state)) intel_dp_stop_link_train(intel_dp, crtc_state); /* 6.o Configure and enable FEC if needed */ intel_ddi_enable_fec(encoder, crtc_state); if (!is_mst) intel_dsc_dp_pps_write(encoder, crtc_state); } static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST); intel_dp_set_link_params(intel_dp, crtc_state->port_clock, crtc_state->lane_count); /* * We only configure what the register value will be here. Actual * enabling happens during link training farther down. */ intel_ddi_init_dp_buf_reg(encoder, crtc_state); /* * 1. Enable Power Wells * * This was handled at the beginning of intel_atomic_commit_tail(), * before we called down into this function. */ /* 2. Enable Panel Power if PPS is required */ intel_pps_on(intel_dp); /* * 3. For non-TBT Type-C ports, set FIA lane count * (DFLEXDPSP.DPX4TXLATC) * * This was done before tgl_ddi_pre_enable_dp by * hsw_crtc_enable()->intel_encoders_pre_pll_enable(). */ /* * 4. Enable the port PLL. * * The PLL enabling itself was already done before this function by * hsw_crtc_enable()->intel_enable_shared_dpll(). We need only * configure the PLL to port mapping here. */ intel_ddi_enable_clock(encoder, crtc_state); /* 5. If IO power is controlled through PWR_WELL_CTL, Enable IO Power */ if (!intel_tc_port_in_tbt_alt_mode(dig_port)) { drm_WARN_ON(&dev_priv->drm, dig_port->ddi_io_wakeref); dig_port->ddi_io_wakeref = intel_display_power_get(dev_priv, dig_port->ddi_io_power_domain); } /* 6. Program DP_MODE */ icl_program_mg_dp_mode(dig_port, crtc_state); /* * 7. The rest of the below are substeps under the bspec's "Enable and * Train Display Port" step. Note that steps that are specific to * MST will be handled by intel_mst_pre_enable_dp() before/after it * calls into this function. Also intel_mst_pre_enable_dp() only calls * us when active_mst_links==0, so any steps designated for "single * stream or multi-stream master transcoder" can just be performed * unconditionally here. */ /* * 7.a Configure Transcoder Clock Select to direct the Port clock to the * Transcoder. */ intel_ddi_enable_transcoder_clock(encoder, crtc_state); if (HAS_DP20(dev_priv)) intel_ddi_config_transcoder_dp2(encoder, crtc_state); /* * 7.b Configure TRANS_DDI_FUNC_CTL DDI Select, DDI Mode Select & MST * Transport Select */ intel_ddi_config_transcoder_func(encoder, crtc_state); /* * 7.c Configure & enable DP_TP_CTL with link training pattern 1 * selected * * This will be handled by the intel_dp_start_link_train() farther * down this function. */ /* 7.e Configure voltage swing and related IO settings */ encoder->set_signal_levels(encoder, crtc_state); /* * 7.f Combo PHY: Configure PORT_CL_DW10 Static Power Down to power up * the used lanes of the DDI. */ intel_ddi_power_up_lanes(encoder, crtc_state); /* * 7.g Program CoG/MSO configuration bits in DSS_CTL1 if selected. */ intel_ddi_mso_configure(crtc_state); if (!is_mst) intel_dp_set_power(intel_dp, DP_SET_POWER_D0); intel_dp_configure_protocol_converter(intel_dp, crtc_state); if (!is_mst) intel_dp_sink_enable_decompression(state, to_intel_connector(conn_state->connector), crtc_state); /* * DDI FEC: "anticipates enabling FEC encoding sets the FEC_READY bit * in the FEC_CONFIGURATION register to 1 before initiating link * training */ intel_dp_sink_set_fec_ready(intel_dp, crtc_state, true); intel_dp_check_frl_training(intel_dp); intel_dp_pcon_dsc_configure(intel_dp, crtc_state); /* * 7.i Follow DisplayPort specification training sequence (see notes for * failure handling) * 7.j If DisplayPort multi-stream - Set DP_TP_CTL link training to Idle * Pattern, wait for 5 idle patterns (DP_TP_STATUS Min_Idles_Sent) * (timeout after 800 us) */ intel_dp_start_link_train(state, intel_dp, crtc_state); /* 7.k Set DP_TP_CTL link training to Normal */ if (!is_trans_port_sync_mode(crtc_state)) intel_dp_stop_link_train(intel_dp, crtc_state); /* 7.l Configure and enable FEC if needed */ intel_ddi_enable_fec(encoder, crtc_state); if (!is_mst) intel_dsc_dp_pps_write(encoder, crtc_state); } static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; struct intel_digital_port *dig_port = enc_to_dig_port(encoder); bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST); if (DISPLAY_VER(dev_priv) < 11) drm_WARN_ON(&dev_priv->drm, is_mst && (port == PORT_A || port == PORT_E)); else drm_WARN_ON(&dev_priv->drm, is_mst && port == PORT_A); intel_dp_set_link_params(intel_dp, crtc_state->port_clock, crtc_state->lane_count); /* * We only configure what the register value will be here. Actual * enabling happens during link training farther down. */ intel_ddi_init_dp_buf_reg(encoder, crtc_state); intel_pps_on(intel_dp); intel_ddi_enable_clock(encoder, crtc_state); if (!intel_tc_port_in_tbt_alt_mode(dig_port)) { drm_WARN_ON(&dev_priv->drm, dig_port->ddi_io_wakeref); dig_port->ddi_io_wakeref = intel_display_power_get(dev_priv, dig_port->ddi_io_power_domain); } icl_program_mg_dp_mode(dig_port, crtc_state); if (has_buf_trans_select(dev_priv)) hsw_prepare_dp_ddi_buffers(encoder, crtc_state); encoder->set_signal_levels(encoder, crtc_state); intel_ddi_power_up_lanes(encoder, crtc_state); if (!is_mst) intel_dp_set_power(intel_dp, DP_SET_POWER_D0); intel_dp_configure_protocol_converter(intel_dp, crtc_state); if (!is_mst) intel_dp_sink_enable_decompression(state, to_intel_connector(conn_state->connector), crtc_state); intel_dp_sink_set_fec_ready(intel_dp, crtc_state, true); intel_dp_start_link_train(state, intel_dp, crtc_state); if ((port != PORT_A || DISPLAY_VER(dev_priv) >= 9) && !is_trans_port_sync_mode(crtc_state)) intel_dp_stop_link_train(intel_dp, crtc_state); intel_ddi_enable_fec(encoder, crtc_state); if (!is_mst) { intel_ddi_enable_transcoder_clock(encoder, crtc_state); intel_dsc_dp_pps_write(encoder, crtc_state); } } static void intel_ddi_pre_enable_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); if (HAS_DP20(dev_priv)) intel_dp_128b132b_sdp_crc16(enc_to_intel_dp(encoder), crtc_state); /* Panel replay has to be enabled in sink dpcd before link training. */ if (crtc_state->has_panel_replay) intel_psr_enable_sink(enc_to_intel_dp(encoder), crtc_state); if (DISPLAY_VER(dev_priv) >= 14) mtl_ddi_pre_enable_dp(state, encoder, crtc_state, conn_state); else if (DISPLAY_VER(dev_priv) >= 12) tgl_ddi_pre_enable_dp(state, encoder, crtc_state, conn_state); else hsw_ddi_pre_enable_dp(state, encoder, crtc_state, conn_state); /* MST will call a setting of MSA after an allocating of Virtual Channel * from MST encoder pre_enable callback. */ if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) intel_ddi_set_dp_msa(crtc_state, conn_state); } static void intel_ddi_pre_enable_hdmi(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct intel_digital_port *dig_port = enc_to_dig_port(encoder); struct intel_hdmi *intel_hdmi = &dig_port->hdmi; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); intel_dp_dual_mode_set_tmds_output(intel_hdmi, true); intel_ddi_enable_clock(encoder, crtc_state); drm_WARN_ON(&dev_priv->drm, dig_port->ddi_io_wakeref); dig_port->ddi_io_wakeref = intel_display_power_get(dev_priv, dig_port->ddi_io_power_domain); icl_program_mg_dp_mode(dig_port, crtc_state); intel_ddi_enable_transcoder_clock(encoder, crtc_state); dig_port->set_infoframes(encoder, crtc_state->has_infoframe, crtc_state, conn_state); } static void intel_ddi_pre_enable(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); enum pipe pipe = crtc->pipe; /* * When called from DP MST code: * - conn_state will be NULL * - encoder will be the main encoder (ie. mst->primary) * - the main connector associated with this port * won't be active or linked to a crtc * - crtc_state will be the state of the first stream to * be activated on this port, and it may not be the same * stream that will be deactivated last, but each stream * should have a state that is identical when it comes to * the DP link parameteres */ drm_WARN_ON(&dev_priv->drm, crtc_state->has_pch_encoder); intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { intel_ddi_pre_enable_hdmi(state, encoder, crtc_state, conn_state); } else { struct intel_digital_port *dig_port = enc_to_dig_port(encoder); intel_ddi_pre_enable_dp(state, encoder, crtc_state, conn_state); /* FIXME precompute everything properly */ /* FIXME how do we turn infoframes off again? */ if (dig_port->lspcon.active && intel_dp_has_hdmi_sink(&dig_port->dp)) dig_port->set_infoframes(encoder, crtc_state->has_infoframe, crtc_state, conn_state); } } static void mtl_ddi_disable_d2d_link(struct intel_encoder *encoder) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; i915_reg_t reg; u32 clr_bits, wait_bits; if (DISPLAY_VER(dev_priv) >= 20) { reg = DDI_BUF_CTL(port); clr_bits = XE2LPD_DDI_BUF_D2D_LINK_ENABLE; wait_bits = XE2LPD_DDI_BUF_D2D_LINK_STATE; } else { reg = XELPDP_PORT_BUF_CTL1(dev_priv, port); clr_bits = XELPDP_PORT_BUF_D2D_LINK_ENABLE; wait_bits = XELPDP_PORT_BUF_D2D_LINK_STATE; } intel_de_rmw(dev_priv, reg, clr_bits, 0); if (wait_for_us(!(intel_de_read(dev_priv, reg) & wait_bits), 100)) drm_err(&dev_priv->drm, "Timeout waiting for D2D Link disable for DDI/PORT_BUF_CTL %c\n", port_name(port)); } static void mtl_disable_ddi_buf(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; u32 val; /* 3.b Clear DDI_CTL_DE Enable to 0. */ val = intel_de_read(dev_priv, DDI_BUF_CTL(port)); if (val & DDI_BUF_CTL_ENABLE) { val &= ~DDI_BUF_CTL_ENABLE; intel_de_write(dev_priv, DDI_BUF_CTL(port), val); /* 3.c Poll for PORT_BUF_CTL Idle Status == 1, timeout after 100us */ mtl_wait_ddi_buf_idle(dev_priv, port); } /* 3.d Disable D2D Link */ mtl_ddi_disable_d2d_link(encoder); /* 3.e Disable DP_TP_CTL */ if (intel_crtc_has_dp_encoder(crtc_state)) { intel_de_rmw(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), DP_TP_CTL_ENABLE, 0); } } static void disable_ddi_buf(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; bool wait = false; u32 val; val = intel_de_read(dev_priv, DDI_BUF_CTL(port)); if (val & DDI_BUF_CTL_ENABLE) { val &= ~DDI_BUF_CTL_ENABLE; intel_de_write(dev_priv, DDI_BUF_CTL(port), val); wait = true; } if (intel_crtc_has_dp_encoder(crtc_state)) intel_de_rmw(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), DP_TP_CTL_ENABLE, 0); intel_ddi_disable_fec(encoder, crtc_state); if (wait) intel_wait_ddi_buf_idle(dev_priv, port); } static void intel_disable_ddi_buf(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); if (DISPLAY_VER(dev_priv) >= 14) { mtl_disable_ddi_buf(encoder, crtc_state); /* 3.f Disable DP_TP_CTL FEC Enable if it is needed */ intel_ddi_disable_fec(encoder, crtc_state); } else { disable_ddi_buf(encoder, crtc_state); } intel_ddi_wait_for_fec_status(encoder, crtc_state, false); } static void intel_ddi_post_disable_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); struct intel_dp *intel_dp = &dig_port->dp; intel_wakeref_t wakeref; bool is_mst = intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DP_MST); if (!is_mst) intel_dp_set_infoframes(encoder, false, old_crtc_state, old_conn_state); /* * Power down sink before disabling the port, otherwise we end * up getting interrupts from the sink on detecting link loss. */ intel_dp_set_power(intel_dp, DP_SET_POWER_D3); if (DISPLAY_VER(dev_priv) >= 12) { if (is_mst) { enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder; intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder), TGL_TRANS_DDI_PORT_MASK | TRANS_DDI_MODE_SELECT_MASK, 0); } } else { if (!is_mst) intel_ddi_disable_transcoder_clock(old_crtc_state); } intel_disable_ddi_buf(encoder, old_crtc_state); intel_dp_sink_set_fec_ready(intel_dp, old_crtc_state, false); /* * From TGL spec: "If single stream or multi-stream master transcoder: * Configure Transcoder Clock select to direct no clock to the * transcoder" */ if (DISPLAY_VER(dev_priv) >= 12) intel_ddi_disable_transcoder_clock(old_crtc_state); intel_pps_vdd_on(intel_dp); intel_pps_off(intel_dp); wakeref = fetch_and_zero(&dig_port->ddi_io_wakeref); if (wakeref) intel_display_power_put(dev_priv, dig_port->ddi_io_power_domain, wakeref); intel_ddi_disable_clock(encoder); /* De-select Thunderbolt */ if (DISPLAY_VER(dev_priv) >= 14) intel_de_rmw(dev_priv, XELPDP_PORT_BUF_CTL1(dev_priv, encoder->port), XELPDP_PORT_BUF_IO_SELECT_TBT, 0); } static void intel_ddi_post_disable_hdmi(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); struct intel_hdmi *intel_hdmi = &dig_port->hdmi; intel_wakeref_t wakeref; dig_port->set_infoframes(encoder, false, old_crtc_state, old_conn_state); if (DISPLAY_VER(dev_priv) < 12) intel_ddi_disable_transcoder_clock(old_crtc_state); intel_disable_ddi_buf(encoder, old_crtc_state); if (DISPLAY_VER(dev_priv) >= 12) intel_ddi_disable_transcoder_clock(old_crtc_state); wakeref = fetch_and_zero(&dig_port->ddi_io_wakeref); if (wakeref) intel_display_power_put(dev_priv, dig_port->ddi_io_power_domain, wakeref); intel_ddi_disable_clock(encoder); intel_dp_dual_mode_set_tmds_output(intel_hdmi, false); } static void intel_ddi_post_disable_hdmi_or_sst(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_crtc *pipe_crtc; for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, pipe_crtc, intel_crtc_joined_pipe_mask(old_crtc_state)) { const struct intel_crtc_state *old_pipe_crtc_state = intel_atomic_get_old_crtc_state(state, pipe_crtc); intel_crtc_vblank_off(old_pipe_crtc_state); } intel_disable_transcoder(old_crtc_state); intel_ddi_disable_transcoder_func(old_crtc_state); for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, pipe_crtc, intel_crtc_joined_pipe_mask(old_crtc_state)) { const struct intel_crtc_state *old_pipe_crtc_state = intel_atomic_get_old_crtc_state(state, pipe_crtc); intel_dsc_disable(old_pipe_crtc_state); if (DISPLAY_VER(dev_priv) >= 9) skl_scaler_disable(old_pipe_crtc_state); else ilk_pfit_disable(old_pipe_crtc_state); } } static void intel_ddi_post_disable(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { if (!intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DP_MST)) intel_ddi_post_disable_hdmi_or_sst(state, encoder, old_crtc_state, old_conn_state); /* * When called from DP MST code: * - old_conn_state will be NULL * - encoder will be the main encoder (ie. mst->primary) * - the main connector associated with this port * won't be active or linked to a crtc * - old_crtc_state will be the state of the last stream to * be deactivated on this port, and it may not be the same * stream that was activated last, but each stream * should have a state that is identical when it comes to * the DP link parameteres */ if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI)) intel_ddi_post_disable_hdmi(state, encoder, old_crtc_state, old_conn_state); else intel_ddi_post_disable_dp(state, encoder, old_crtc_state, old_conn_state); } static void intel_ddi_post_pll_disable(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { struct intel_digital_port *dig_port = enc_to_dig_port(encoder); main_link_aux_power_domain_put(dig_port, old_crtc_state); if (intel_encoder_is_tc(encoder)) intel_tc_port_put_link(dig_port); } static void trans_port_sync_stop_link_train(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { const struct drm_connector_state *conn_state; struct drm_connector *conn; int i; if (!crtc_state->sync_mode_slaves_mask) return; for_each_new_connector_in_state(&state->base, conn, conn_state, i) { struct intel_encoder *slave_encoder = to_intel_encoder(conn_state->best_encoder); struct intel_crtc *slave_crtc = to_intel_crtc(conn_state->crtc); const struct intel_crtc_state *slave_crtc_state; if (!slave_crtc) continue; slave_crtc_state = intel_atomic_get_new_crtc_state(state, slave_crtc); if (slave_crtc_state->master_transcoder != crtc_state->cpu_transcoder) continue; intel_dp_stop_link_train(enc_to_intel_dp(slave_encoder), slave_crtc_state); } usleep_range(200, 400); intel_dp_stop_link_train(enc_to_intel_dp(encoder), crtc_state); } static void intel_enable_ddi_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); enum port port = encoder->port; if (port == PORT_A && DISPLAY_VER(dev_priv) < 9) intel_dp_stop_link_train(intel_dp, crtc_state); drm_connector_update_privacy_screen(conn_state); intel_edp_backlight_on(crtc_state, conn_state); if (!dig_port->lspcon.active || intel_dp_has_hdmi_sink(&dig_port->dp)) intel_dp_set_infoframes(encoder, true, crtc_state, conn_state); trans_port_sync_stop_link_train(state, encoder, crtc_state); } /* FIXME bad home for this function */ i915_reg_t hsw_chicken_trans_reg(struct drm_i915_private *i915, enum transcoder cpu_transcoder) { return DISPLAY_VER(i915) >= 14 ? MTL_CHICKEN_TRANS(cpu_transcoder) : CHICKEN_TRANS(cpu_transcoder); } static i915_reg_t gen9_chicken_trans_reg_by_port(struct drm_i915_private *dev_priv, enum port port) { static const enum transcoder trans[] = { [PORT_A] = TRANSCODER_EDP, [PORT_B] = TRANSCODER_A, [PORT_C] = TRANSCODER_B, [PORT_D] = TRANSCODER_C, [PORT_E] = TRANSCODER_A, }; drm_WARN_ON(&dev_priv->drm, DISPLAY_VER(dev_priv) < 9); if (drm_WARN_ON(&dev_priv->drm, port < PORT_A || port > PORT_E)) port = PORT_A; return CHICKEN_TRANS(trans[port]); } static void intel_enable_ddi_hdmi(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); struct drm_connector *connector = conn_state->connector; enum port port = encoder->port; u32 buf_ctl; if (!intel_hdmi_handle_sink_scrambling(encoder, connector, crtc_state->hdmi_high_tmds_clock_ratio, crtc_state->hdmi_scrambling)) drm_dbg_kms(&dev_priv->drm, "[CONNECTOR:%d:%s] Failed to configure sink scrambling/TMDS bit clock ratio\n", connector->base.id, connector->name); if (has_buf_trans_select(dev_priv)) hsw_prepare_hdmi_ddi_buffers(encoder, crtc_state); /* e. Enable D2D Link for C10/C20 Phy */ if (DISPLAY_VER(dev_priv) >= 14) mtl_ddi_enable_d2d(encoder); encoder->set_signal_levels(encoder, crtc_state); /* Display WA #1143: skl,kbl,cfl */ if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv)) { /* * For some reason these chicken bits have been * stuffed into a transcoder register, event though * the bits affect a specific DDI port rather than * a specific transcoder. */ i915_reg_t reg = gen9_chicken_trans_reg_by_port(dev_priv, port); u32 val; val = intel_de_read(dev_priv, reg); if (port == PORT_E) val |= DDIE_TRAINING_OVERRIDE_ENABLE | DDIE_TRAINING_OVERRIDE_VALUE; else val |= DDI_TRAINING_OVERRIDE_ENABLE | DDI_TRAINING_OVERRIDE_VALUE; intel_de_write(dev_priv, reg, val); intel_de_posting_read(dev_priv, reg); udelay(1); if (port == PORT_E) val &= ~(DDIE_TRAINING_OVERRIDE_ENABLE | DDIE_TRAINING_OVERRIDE_VALUE); else val &= ~(DDI_TRAINING_OVERRIDE_ENABLE | DDI_TRAINING_OVERRIDE_VALUE); intel_de_write(dev_priv, reg, val); } intel_ddi_power_up_lanes(encoder, crtc_state); /* In HDMI/DVI mode, the port width, and swing/emphasis values * are ignored so nothing special needs to be done besides * enabling the port. * * On ADL_P the PHY link rate and lane count must be programmed but * these are both 0 for HDMI. * * But MTL onwards HDMI2.1 is supported and in TMDS mode this * is filled with lane count, already set in the crtc_state. * The same is required to be filled in PORT_BUF_CTL for C10/20 Phy. */ buf_ctl = dig_port->saved_port_bits | DDI_BUF_CTL_ENABLE; if (DISPLAY_VER(dev_priv) >= 14) { u8 lane_count = mtl_get_port_width(crtc_state->lane_count); u32 port_buf = 0; port_buf |= XELPDP_PORT_WIDTH(lane_count); if (dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL) port_buf |= XELPDP_PORT_REVERSAL; intel_de_rmw(dev_priv, XELPDP_PORT_BUF_CTL1(dev_priv, port), XELPDP_PORT_WIDTH_MASK | XELPDP_PORT_REVERSAL, port_buf); buf_ctl |= DDI_PORT_WIDTH(lane_count); if (DISPLAY_VER(dev_priv) >= 20) buf_ctl |= XE2LPD_DDI_BUF_D2D_LINK_ENABLE; } else if (IS_ALDERLAKE_P(dev_priv) && intel_encoder_is_tc(encoder)) { drm_WARN_ON(&dev_priv->drm, !intel_tc_port_in_legacy_mode(dig_port)); buf_ctl |= DDI_BUF_CTL_TC_PHY_OWNERSHIP; } intel_de_write(dev_priv, DDI_BUF_CTL(port), buf_ctl); intel_wait_ddi_buf_active(encoder); } static void intel_enable_ddi(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_crtc *pipe_crtc; intel_ddi_enable_transcoder_func(encoder, crtc_state); /* Enable/Disable DP2.0 SDP split config before transcoder */ intel_audio_sdp_split_update(crtc_state); intel_enable_transcoder(crtc_state); intel_ddi_wait_for_fec_status(encoder, crtc_state, true); for_each_intel_crtc_in_pipe_mask_reverse(&i915->drm, pipe_crtc, intel_crtc_joined_pipe_mask(crtc_state)) { const struct intel_crtc_state *pipe_crtc_state = intel_atomic_get_new_crtc_state(state, pipe_crtc); intel_crtc_vblank_on(pipe_crtc_state); } if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) intel_enable_ddi_hdmi(state, encoder, crtc_state, conn_state); else intel_enable_ddi_dp(state, encoder, crtc_state, conn_state); intel_hdcp_enable(state, encoder, crtc_state, conn_state); } static void intel_disable_ddi_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct intel_connector *connector = to_intel_connector(old_conn_state->connector); intel_dp->link_trained = false; intel_psr_disable(intel_dp, old_crtc_state); intel_edp_backlight_off(old_conn_state); /* Disable the decompression in DP Sink */ intel_dp_sink_disable_decompression(state, connector, old_crtc_state); /* Disable Ignore_MSA bit in DP Sink */ intel_dp_sink_set_msa_timing_par_ignore_state(intel_dp, old_crtc_state, false); } static void intel_disable_ddi_hdmi(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct drm_connector *connector = old_conn_state->connector; if (!intel_hdmi_handle_sink_scrambling(encoder, connector, false, false)) drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Failed to reset sink scrambling/TMDS bit clock ratio\n", connector->base.id, connector->name); } static void intel_disable_ddi(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { intel_tc_port_link_cancel_reset_work(enc_to_dig_port(encoder)); intel_hdcp_disable(to_intel_connector(old_conn_state->connector)); if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI)) intel_disable_ddi_hdmi(state, encoder, old_crtc_state, old_conn_state); else intel_disable_ddi_dp(state, encoder, old_crtc_state, old_conn_state); } static void intel_ddi_update_pipe_dp(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { intel_ddi_set_dp_msa(crtc_state, conn_state); intel_dp_set_infoframes(encoder, true, crtc_state, conn_state); intel_backlight_update(state, encoder, crtc_state, conn_state); drm_connector_update_privacy_screen(conn_state); } void intel_ddi_update_pipe(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) && !intel_encoder_is_mst(encoder)) intel_ddi_update_pipe_dp(state, encoder, crtc_state, conn_state); intel_hdcp_update_pipe(state, encoder, crtc_state, conn_state); } void intel_ddi_update_active_dpll(struct intel_atomic_state *state, struct intel_encoder *encoder, struct intel_crtc *crtc) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_crtc_state *crtc_state = intel_atomic_get_new_crtc_state(state, crtc); struct intel_crtc *pipe_crtc; /* FIXME: Add MTL pll_mgr */ if (DISPLAY_VER(i915) >= 14 || !intel_encoder_is_tc(encoder)) return; for_each_intel_crtc_in_pipe_mask(&i915->drm, pipe_crtc, intel_crtc_joined_pipe_mask(crtc_state)) intel_update_active_dpll(state, pipe_crtc, encoder); } static void intel_ddi_pre_pll_enable(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); bool is_tc_port = intel_encoder_is_tc(encoder); if (is_tc_port) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); intel_tc_port_get_link(dig_port, crtc_state->lane_count); intel_ddi_update_active_dpll(state, encoder, crtc); } main_link_aux_power_domain_get(dig_port, crtc_state); if (is_tc_port && !intel_tc_port_in_tbt_alt_mode(dig_port)) /* * Program the lane count for static/dynamic connections on * Type-C ports. Skip this step for TBT. */ intel_tc_port_set_fia_lane_count(dig_port, crtc_state->lane_count); else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) bxt_dpio_phy_set_lane_optim_mask(encoder, crtc_state->lane_lat_optim_mask); } static void adlp_tbt_to_dp_alt_switch_wa(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum tc_port tc_port = intel_encoder_to_tc(encoder); int ln; for (ln = 0; ln < 2; ln++) intel_dkl_phy_rmw(i915, DKL_PCS_DW5(tc_port, ln), DKL_PCS_DW5_CORE_SOFTRESET, 0); } static void mtl_ddi_prepare_link_retrain(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); struct intel_encoder *encoder = &dig_port->base; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; u32 dp_tp_ctl; /* * TODO: To train with only a different voltage swing entry is not * necessary disable and enable port */ dp_tp_ctl = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state)); if (dp_tp_ctl & DP_TP_CTL_ENABLE) mtl_disable_ddi_buf(encoder, crtc_state); /* 6.d Configure and enable DP_TP_CTL with link training pattern 1 selected */ dp_tp_ctl = DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT1; if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) { dp_tp_ctl |= DP_TP_CTL_MODE_MST; } else { dp_tp_ctl |= DP_TP_CTL_MODE_SST; if (crtc_state->enhanced_framing) dp_tp_ctl |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; } intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), dp_tp_ctl); intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state)); /* 6.f Enable D2D Link */ mtl_ddi_enable_d2d(encoder); /* 6.g Configure voltage swing and related IO settings */ encoder->set_signal_levels(encoder, crtc_state); /* 6.h Configure PORT_BUF_CTL1 */ mtl_port_buf_ctl_program(encoder, crtc_state); /* 6.i Configure and enable DDI_CTL_DE to start sending valid data to port slice */ intel_dp->DP |= DDI_BUF_CTL_ENABLE; if (DISPLAY_VER(dev_priv) >= 20) intel_dp->DP |= XE2LPD_DDI_BUF_D2D_LINK_ENABLE; intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP); intel_de_posting_read(dev_priv, DDI_BUF_CTL(port)); /* 6.j Poll for PORT_BUF_CTL Idle Status == 0, timeout after 100 us */ intel_wait_ddi_buf_active(encoder); } static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); struct intel_encoder *encoder = &dig_port->base; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; u32 dp_tp_ctl, ddi_buf_ctl; bool wait = false; dp_tp_ctl = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state)); if (dp_tp_ctl & DP_TP_CTL_ENABLE) { ddi_buf_ctl = intel_de_read(dev_priv, DDI_BUF_CTL(port)); if (ddi_buf_ctl & DDI_BUF_CTL_ENABLE) { intel_de_write(dev_priv, DDI_BUF_CTL(port), ddi_buf_ctl & ~DDI_BUF_CTL_ENABLE); wait = true; } dp_tp_ctl &= ~DP_TP_CTL_ENABLE; intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), dp_tp_ctl); intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state)); if (wait) intel_wait_ddi_buf_idle(dev_priv, port); } dp_tp_ctl = DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT1; if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) { dp_tp_ctl |= DP_TP_CTL_MODE_MST; } else { dp_tp_ctl |= DP_TP_CTL_MODE_SST; if (crtc_state->enhanced_framing) dp_tp_ctl |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; } intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), dp_tp_ctl); intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state)); if (IS_ALDERLAKE_P(dev_priv) && (intel_tc_port_in_dp_alt_mode(dig_port) || intel_tc_port_in_legacy_mode(dig_port))) adlp_tbt_to_dp_alt_switch_wa(encoder); intel_dp->DP |= DDI_BUF_CTL_ENABLE; intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP); intel_de_posting_read(dev_priv, DDI_BUF_CTL(port)); intel_wait_ddi_buf_active(encoder); } static void intel_ddi_set_link_train(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state, u8 dp_train_pat) { struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); u32 temp; temp = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state)); temp &= ~DP_TP_CTL_LINK_TRAIN_MASK; switch (intel_dp_training_pattern_symbol(dp_train_pat)) { case DP_TRAINING_PATTERN_DISABLE: temp |= DP_TP_CTL_LINK_TRAIN_NORMAL; break; case DP_TRAINING_PATTERN_1: temp |= DP_TP_CTL_LINK_TRAIN_PAT1; break; case DP_TRAINING_PATTERN_2: temp |= DP_TP_CTL_LINK_TRAIN_PAT2; break; case DP_TRAINING_PATTERN_3: temp |= DP_TP_CTL_LINK_TRAIN_PAT3; break; case DP_TRAINING_PATTERN_4: temp |= DP_TP_CTL_LINK_TRAIN_PAT4; break; } intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), temp); } static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state) { struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; intel_de_rmw(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), DP_TP_CTL_LINK_TRAIN_MASK, DP_TP_CTL_LINK_TRAIN_IDLE); /* * Until TGL on PORT_A we can have only eDP in SST mode. There the only * reason we need to set idle transmission mode is to work around a HW * issue where we enable the pipe while not in idle link-training mode. * In this case there is requirement to wait for a minimum number of * idle patterns to be sent. */ if (port == PORT_A && DISPLAY_VER(dev_priv) < 12) return; if (intel_de_wait_for_set(dev_priv, dp_tp_status_reg(encoder, crtc_state), DP_TP_STATUS_IDLE_DONE, 2)) drm_err(&dev_priv->drm, "Timed out waiting for DP idle patterns\n"); } static bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv, enum transcoder cpu_transcoder) { if (cpu_transcoder == TRANSCODER_EDP) return false; if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO_MMIO)) return false; return intel_de_read(dev_priv, HSW_AUD_PIN_ELD_CP_VLD) & AUDIO_OUTPUT_ENABLE(cpu_transcoder); } static int tgl_ddi_min_voltage_level(const struct intel_crtc_state *crtc_state) { if (crtc_state->port_clock > 594000) return 2; else return 0; } static int jsl_ddi_min_voltage_level(const struct intel_crtc_state *crtc_state) { if (crtc_state->port_clock > 594000) return 3; else return 0; } static int icl_ddi_min_voltage_level(const struct intel_crtc_state *crtc_state) { if (crtc_state->port_clock > 594000) return 1; else return 0; } void intel_ddi_compute_min_voltage_level(struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); if (DISPLAY_VER(dev_priv) >= 14) crtc_state->min_voltage_level = icl_ddi_min_voltage_level(crtc_state); else if (DISPLAY_VER(dev_priv) >= 12) crtc_state->min_voltage_level = tgl_ddi_min_voltage_level(crtc_state); else if (IS_JASPERLAKE(dev_priv) || IS_ELKHARTLAKE(dev_priv)) crtc_state->min_voltage_level = jsl_ddi_min_voltage_level(crtc_state); else if (DISPLAY_VER(dev_priv) >= 11) crtc_state->min_voltage_level = icl_ddi_min_voltage_level(crtc_state); } static enum transcoder bdw_transcoder_master_readout(struct drm_i915_private *dev_priv, enum transcoder cpu_transcoder) { u32 master_select; if (DISPLAY_VER(dev_priv) >= 11) { u32 ctl2 = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL2(dev_priv, cpu_transcoder)); if ((ctl2 & PORT_SYNC_MODE_ENABLE) == 0) return INVALID_TRANSCODER; master_select = REG_FIELD_GET(PORT_SYNC_MODE_MASTER_SELECT_MASK, ctl2); } else { u32 ctl = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder)); if ((ctl & TRANS_DDI_PORT_SYNC_ENABLE) == 0) return INVALID_TRANSCODER; master_select = REG_FIELD_GET(TRANS_DDI_PORT_SYNC_MASTER_SELECT_MASK, ctl); } if (master_select == 0) return TRANSCODER_EDP; else return master_select - 1; } static void bdw_get_trans_port_sync_config(struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); u32 transcoders = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | BIT(TRANSCODER_C) | BIT(TRANSCODER_D); enum transcoder cpu_transcoder; crtc_state->master_transcoder = bdw_transcoder_master_readout(dev_priv, crtc_state->cpu_transcoder); for_each_cpu_transcoder_masked(dev_priv, cpu_transcoder, transcoders) { enum intel_display_power_domain power_domain; intel_wakeref_t trans_wakeref; power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder); trans_wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain); if (!trans_wakeref) continue; if (bdw_transcoder_master_readout(dev_priv, cpu_transcoder) == crtc_state->cpu_transcoder) crtc_state->sync_mode_slaves_mask |= BIT(cpu_transcoder); intel_display_power_put(dev_priv, power_domain, trans_wakeref); } drm_WARN_ON(&dev_priv->drm, crtc_state->master_transcoder != INVALID_TRANSCODER && crtc_state->sync_mode_slaves_mask); } static void intel_ddi_read_func_ctl(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; struct intel_digital_port *dig_port = enc_to_dig_port(encoder); u32 temp, flags = 0; temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(dev_priv, cpu_transcoder)); if (temp & TRANS_DDI_PHSYNC) flags |= DRM_MODE_FLAG_PHSYNC; else flags |= DRM_MODE_FLAG_NHSYNC; if (temp & TRANS_DDI_PVSYNC) flags |= DRM_MODE_FLAG_PVSYNC; else flags |= DRM_MODE_FLAG_NVSYNC; pipe_config->hw.adjusted_mode.flags |= flags; switch (temp & TRANS_DDI_BPC_MASK) { case TRANS_DDI_BPC_6: pipe_config->pipe_bpp = 18; break; case TRANS_DDI_BPC_8: pipe_config->pipe_bpp = 24; break; case TRANS_DDI_BPC_10: pipe_config->pipe_bpp = 30; break; case TRANS_DDI_BPC_12: pipe_config->pipe_bpp = 36; break; default: break; } switch (temp & TRANS_DDI_MODE_SELECT_MASK) { case TRANS_DDI_MODE_SELECT_HDMI: pipe_config->has_hdmi_sink = true; pipe_config->infoframes.enable |= intel_hdmi_infoframes_enabled(encoder, pipe_config); if (pipe_config->infoframes.enable) pipe_config->has_infoframe = true; if (temp & TRANS_DDI_HDMI_SCRAMBLING) pipe_config->hdmi_scrambling = true; if (temp & TRANS_DDI_HIGH_TMDS_CHAR_RATE) pipe_config->hdmi_high_tmds_clock_ratio = true; fallthrough; case TRANS_DDI_MODE_SELECT_DVI: pipe_config->output_types |= BIT(INTEL_OUTPUT_HDMI); if (DISPLAY_VER(dev_priv) >= 14) pipe_config->lane_count = ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1; else pipe_config->lane_count = 4; break; case TRANS_DDI_MODE_SELECT_DP_SST: if (encoder->type == INTEL_OUTPUT_EDP) pipe_config->output_types |= BIT(INTEL_OUTPUT_EDP); else pipe_config->output_types |= BIT(INTEL_OUTPUT_DP); pipe_config->lane_count = ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1; intel_cpu_transcoder_get_m1_n1(crtc, cpu_transcoder, &pipe_config->dp_m_n); intel_cpu_transcoder_get_m2_n2(crtc, cpu_transcoder, &pipe_config->dp_m2_n2); pipe_config->enhanced_framing = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, pipe_config)) & DP_TP_CTL_ENHANCED_FRAME_ENABLE; if (DISPLAY_VER(dev_priv) >= 11) pipe_config->fec_enable = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, pipe_config)) & DP_TP_CTL_FEC_ENABLE; if (dig_port->lspcon.active && intel_dp_has_hdmi_sink(&dig_port->dp)) pipe_config->infoframes.enable |= intel_lspcon_infoframes_enabled(encoder, pipe_config); else pipe_config->infoframes.enable |= intel_hdmi_infoframes_enabled(encoder, pipe_config); break; case TRANS_DDI_MODE_SELECT_FDI_OR_128B132B: if (!HAS_DP20(dev_priv)) { /* FDI */ pipe_config->output_types |= BIT(INTEL_OUTPUT_ANALOG); pipe_config->enhanced_framing = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, pipe_config)) & DP_TP_CTL_ENHANCED_FRAME_ENABLE; break; } fallthrough; /* 128b/132b */ case TRANS_DDI_MODE_SELECT_DP_MST: pipe_config->output_types |= BIT(INTEL_OUTPUT_DP_MST); pipe_config->lane_count = ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1; if (DISPLAY_VER(dev_priv) >= 12) pipe_config->mst_master_transcoder = REG_FIELD_GET(TRANS_DDI_MST_TRANSPORT_SELECT_MASK, temp); intel_cpu_transcoder_get_m1_n1(crtc, cpu_transcoder, &pipe_config->dp_m_n); if (DISPLAY_VER(dev_priv) >= 11) pipe_config->fec_enable = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, pipe_config)) & DP_TP_CTL_FEC_ENABLE; pipe_config->infoframes.enable |= intel_hdmi_infoframes_enabled(encoder, pipe_config); break; default: break; } } static void intel_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; /* XXX: DSI transcoder paranoia */ if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder))) return; intel_ddi_read_func_ctl(encoder, pipe_config); intel_ddi_mso_get_config(encoder, pipe_config); pipe_config->has_audio = intel_ddi_is_audio_enabled(dev_priv, cpu_transcoder); if (encoder->type == INTEL_OUTPUT_EDP) intel_edp_fixup_vbt_bpp(encoder, pipe_config->pipe_bpp); ddi_dotclock_get(pipe_config); if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) pipe_config->lane_lat_optim_mask = bxt_dpio_phy_get_lane_lat_optim_mask(encoder); intel_ddi_compute_min_voltage_level(pipe_config); intel_hdmi_read_gcp_infoframe(encoder, pipe_config); intel_read_infoframe(encoder, pipe_config, HDMI_INFOFRAME_TYPE_AVI, &pipe_config->infoframes.avi); intel_read_infoframe(encoder, pipe_config, HDMI_INFOFRAME_TYPE_SPD, &pipe_config->infoframes.spd); intel_read_infoframe(encoder, pipe_config, HDMI_INFOFRAME_TYPE_VENDOR, &pipe_config->infoframes.hdmi); intel_read_infoframe(encoder, pipe_config, HDMI_INFOFRAME_TYPE_DRM, &pipe_config->infoframes.drm); if (DISPLAY_VER(dev_priv) >= 8) bdw_get_trans_port_sync_config(pipe_config); intel_psr_get_config(encoder, pipe_config); intel_read_dp_sdp(encoder, pipe_config, HDMI_PACKET_TYPE_GAMUT_METADATA); intel_read_dp_sdp(encoder, pipe_config, DP_SDP_VSC); intel_read_dp_sdp(encoder, pipe_config, DP_SDP_ADAPTIVE_SYNC); intel_audio_codec_get_config(encoder, pipe_config); } void intel_ddi_get_clock(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state, struct intel_shared_dpll *pll) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum icl_port_dpll_id port_dpll_id = ICL_PORT_DPLL_DEFAULT; struct icl_port_dpll *port_dpll = &crtc_state->icl_port_dplls[port_dpll_id]; bool pll_active; if (drm_WARN_ON(&i915->drm, !pll)) return; port_dpll->pll = pll; pll_active = intel_dpll_get_hw_state(i915, pll, &port_dpll->hw_state); drm_WARN_ON(&i915->drm, !pll_active); icl_set_active_port_dpll(crtc_state, port_dpll_id); crtc_state->port_clock = intel_dpll_get_freq(i915, crtc_state->shared_dpll, &crtc_state->dpll_hw_state); } static void mtl_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_cx0pll_readout_hw_state(encoder, &crtc_state->dpll_hw_state.cx0pll); if (crtc_state->dpll_hw_state.cx0pll.tbt_mode) crtc_state->port_clock = intel_mtl_tbt_calc_port_clock(encoder); else crtc_state->port_clock = intel_cx0pll_calc_port_clock(encoder, &crtc_state->dpll_hw_state.cx0pll); intel_ddi_get_config(encoder, crtc_state); } static void dg2_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_mpllb_readout_hw_state(encoder, &crtc_state->dpll_hw_state.mpllb); crtc_state->port_clock = intel_mpllb_calc_port_clock(encoder, &crtc_state->dpll_hw_state.mpllb); intel_ddi_get_config(encoder, crtc_state); } static void adls_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_ddi_get_clock(encoder, crtc_state, adls_ddi_get_pll(encoder)); intel_ddi_get_config(encoder, crtc_state); } static void rkl_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_ddi_get_clock(encoder, crtc_state, rkl_ddi_get_pll(encoder)); intel_ddi_get_config(encoder, crtc_state); } static void dg1_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_ddi_get_clock(encoder, crtc_state, dg1_ddi_get_pll(encoder)); intel_ddi_get_config(encoder, crtc_state); } static void icl_ddi_combo_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_ddi_get_clock(encoder, crtc_state, icl_ddi_combo_get_pll(encoder)); intel_ddi_get_config(encoder, crtc_state); } static bool icl_ddi_tc_pll_is_tbt(const struct intel_shared_dpll *pll) { return pll->info->id == DPLL_ID_ICL_TBTPLL; } static enum icl_port_dpll_id icl_ddi_tc_port_pll_type(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); const struct intel_shared_dpll *pll = crtc_state->shared_dpll; if (drm_WARN_ON(&i915->drm, !pll)) return ICL_PORT_DPLL_DEFAULT; if (icl_ddi_tc_pll_is_tbt(pll)) return ICL_PORT_DPLL_DEFAULT; else return ICL_PORT_DPLL_MG_PHY; } enum icl_port_dpll_id intel_ddi_port_pll_type(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { if (!encoder->port_pll_type) return ICL_PORT_DPLL_DEFAULT; return encoder->port_pll_type(encoder, crtc_state); } static void icl_ddi_tc_get_clock(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state, struct intel_shared_dpll *pll) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum icl_port_dpll_id port_dpll_id; struct icl_port_dpll *port_dpll; bool pll_active; if (drm_WARN_ON(&i915->drm, !pll)) return; if (icl_ddi_tc_pll_is_tbt(pll)) port_dpll_id = ICL_PORT_DPLL_DEFAULT; else port_dpll_id = ICL_PORT_DPLL_MG_PHY; port_dpll = &crtc_state->icl_port_dplls[port_dpll_id]; port_dpll->pll = pll; pll_active = intel_dpll_get_hw_state(i915, pll, &port_dpll->hw_state); drm_WARN_ON(&i915->drm, !pll_active); icl_set_active_port_dpll(crtc_state, port_dpll_id); if (icl_ddi_tc_pll_is_tbt(crtc_state->shared_dpll)) crtc_state->port_clock = icl_calc_tbt_pll_link(i915, encoder->port); else crtc_state->port_clock = intel_dpll_get_freq(i915, crtc_state->shared_dpll, &crtc_state->dpll_hw_state); } static void icl_ddi_tc_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { icl_ddi_tc_get_clock(encoder, crtc_state, icl_ddi_tc_get_pll(encoder)); intel_ddi_get_config(encoder, crtc_state); } static void bxt_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_ddi_get_clock(encoder, crtc_state, bxt_ddi_get_pll(encoder)); intel_ddi_get_config(encoder, crtc_state); } static void skl_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_ddi_get_clock(encoder, crtc_state, skl_ddi_get_pll(encoder)); intel_ddi_get_config(encoder, crtc_state); } void hsw_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { intel_ddi_get_clock(encoder, crtc_state, hsw_ddi_get_pll(encoder)); intel_ddi_get_config(encoder, crtc_state); } static void intel_ddi_sync_state(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { if (intel_encoder_is_tc(encoder)) intel_tc_port_sanitize_mode(enc_to_dig_port(encoder), crtc_state); if (intel_encoder_is_dp(encoder)) intel_dp_sync_state(encoder, crtc_state); } static bool intel_ddi_initial_fastset_check(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); bool fastset = true; if (intel_encoder_is_tc(encoder)) { drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] Forcing full modeset to compute TC port DPLLs\n", encoder->base.base.id, encoder->base.name); crtc_state->uapi.mode_changed = true; fastset = false; } if (intel_crtc_has_dp_encoder(crtc_state) && !intel_dp_initial_fastset_check(encoder, crtc_state)) fastset = false; return fastset; } static enum intel_output_type intel_ddi_compute_output_type(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state, struct drm_connector_state *conn_state) { switch (conn_state->connector->connector_type) { case DRM_MODE_CONNECTOR_HDMIA: return INTEL_OUTPUT_HDMI; case DRM_MODE_CONNECTOR_eDP: return INTEL_OUTPUT_EDP; case DRM_MODE_CONNECTOR_DisplayPort: return INTEL_OUTPUT_DP; default: MISSING_CASE(conn_state->connector->connector_type); return INTEL_OUTPUT_UNUSED; } } static int intel_ddi_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state) { struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; int ret; if (HAS_TRANSCODER(dev_priv, TRANSCODER_EDP) && port == PORT_A) pipe_config->cpu_transcoder = TRANSCODER_EDP; if (intel_crtc_has_type(pipe_config, INTEL_OUTPUT_HDMI)) { pipe_config->has_hdmi_sink = intel_hdmi_compute_has_hdmi_sink(encoder, pipe_config, conn_state); ret = intel_hdmi_compute_config(encoder, pipe_config, conn_state); } else { ret = intel_dp_compute_config(encoder, pipe_config, conn_state); } if (ret) return ret; if (IS_HASWELL(dev_priv) && crtc->pipe == PIPE_A && pipe_config->cpu_transcoder == TRANSCODER_EDP) pipe_config->pch_pfit.force_thru = pipe_config->pch_pfit.enabled || pipe_config->crc_enabled; if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) pipe_config->lane_lat_optim_mask = bxt_dpio_phy_calc_lane_lat_optim_mask(pipe_config->lane_count); intel_ddi_compute_min_voltage_level(pipe_config); return 0; } static bool mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2) { return drm_mode_match(mode1, mode2, DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS | DRM_MODE_MATCH_3D_FLAGS) && mode1->clock == mode2->clock; /* we want an exact match */ } static bool m_n_equal(const struct intel_link_m_n *m_n_1, const struct intel_link_m_n *m_n_2) { return m_n_1->tu == m_n_2->tu && m_n_1->data_m == m_n_2->data_m && m_n_1->data_n == m_n_2->data_n && m_n_1->link_m == m_n_2->link_m && m_n_1->link_n == m_n_2->link_n; } static bool crtcs_port_sync_compatible(const struct intel_crtc_state *crtc_state1, const struct intel_crtc_state *crtc_state2) { /* * FIXME the modeset sequence is currently wrong and * can't deal with joiner + port sync at the same time. */ return crtc_state1->hw.active && crtc_state2->hw.active && !crtc_state1->joiner_pipes && !crtc_state2->joiner_pipes && crtc_state1->output_types == crtc_state2->output_types && crtc_state1->output_format == crtc_state2->output_format && crtc_state1->lane_count == crtc_state2->lane_count && crtc_state1->port_clock == crtc_state2->port_clock && mode_equal(&crtc_state1->hw.adjusted_mode, &crtc_state2->hw.adjusted_mode) && m_n_equal(&crtc_state1->dp_m_n, &crtc_state2->dp_m_n); } static u8 intel_ddi_port_sync_transcoders(const struct intel_crtc_state *ref_crtc_state, int tile_group_id) { struct drm_connector *connector; const struct drm_connector_state *conn_state; struct drm_i915_private *dev_priv = to_i915(ref_crtc_state->uapi.crtc->dev); struct intel_atomic_state *state = to_intel_atomic_state(ref_crtc_state->uapi.state); u8 transcoders = 0; int i; /* * We don't enable port sync on BDW due to missing w/as and * due to not having adjusted the modeset sequence appropriately. */ if (DISPLAY_VER(dev_priv) < 9) return 0; if (!intel_crtc_has_type(ref_crtc_state, INTEL_OUTPUT_DP)) return 0; for_each_new_connector_in_state(&state->base, connector, conn_state, i) { struct intel_crtc *crtc = to_intel_crtc(conn_state->crtc); const struct intel_crtc_state *crtc_state; if (!crtc) continue; if (!connector->has_tile || connector->tile_group->id != tile_group_id) continue; crtc_state = intel_atomic_get_new_crtc_state(state, crtc); if (!crtcs_port_sync_compatible(ref_crtc_state, crtc_state)) continue; transcoders |= BIT(crtc_state->cpu_transcoder); } return transcoders; } static int intel_ddi_compute_config_late(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state, struct drm_connector_state *conn_state) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct drm_connector *connector = conn_state->connector; u8 port_sync_transcoders = 0; drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] [CRTC:%d:%s]\n", encoder->base.base.id, encoder->base.name, crtc_state->uapi.crtc->base.id, crtc_state->uapi.crtc->name); if (connector->has_tile) port_sync_transcoders = intel_ddi_port_sync_transcoders(crtc_state, connector->tile_group->id); /* * EDP Transcoders cannot be ensalved * make them a master always when present */ if (port_sync_transcoders & BIT(TRANSCODER_EDP)) crtc_state->master_transcoder = TRANSCODER_EDP; else crtc_state->master_transcoder = ffs(port_sync_transcoders) - 1; if (crtc_state->master_transcoder == crtc_state->cpu_transcoder) { crtc_state->master_transcoder = INVALID_TRANSCODER; crtc_state->sync_mode_slaves_mask = port_sync_transcoders & ~BIT(crtc_state->cpu_transcoder); } return 0; } static void intel_ddi_encoder_destroy(struct drm_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->dev); struct intel_digital_port *dig_port = enc_to_dig_port(to_intel_encoder(encoder)); intel_dp_encoder_flush_work(encoder); if (intel_encoder_is_tc(&dig_port->base)) intel_tc_port_cleanup(dig_port); intel_display_power_flush_work(i915); drm_encoder_cleanup(encoder); kfree(dig_port->hdcp_port_data.streams); kfree(dig_port); } static void intel_ddi_encoder_reset(struct drm_encoder *encoder) { struct intel_dp *intel_dp = enc_to_intel_dp(to_intel_encoder(encoder)); struct intel_digital_port *dig_port = enc_to_dig_port(to_intel_encoder(encoder)); intel_dp->reset_link_params = true; intel_pps_encoder_reset(intel_dp); if (intel_encoder_is_tc(&dig_port->base)) intel_tc_port_init_mode(dig_port); } static int intel_ddi_encoder_late_register(struct drm_encoder *_encoder) { struct intel_encoder *encoder = to_intel_encoder(_encoder); intel_tc_port_link_reset(enc_to_dig_port(encoder)); return 0; } static const struct drm_encoder_funcs intel_ddi_funcs = { .reset = intel_ddi_encoder_reset, .destroy = intel_ddi_encoder_destroy, .late_register = intel_ddi_encoder_late_register, }; static struct intel_connector * intel_ddi_init_dp_connector(struct intel_digital_port *dig_port) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); struct intel_connector *connector; enum port port = dig_port->base.port; connector = intel_connector_alloc(); if (!connector) return NULL; dig_port->dp.output_reg = DDI_BUF_CTL(port); if (DISPLAY_VER(i915) >= 14) dig_port->dp.prepare_link_retrain = mtl_ddi_prepare_link_retrain; else dig_port->dp.prepare_link_retrain = intel_ddi_prepare_link_retrain; dig_port->dp.set_link_train = intel_ddi_set_link_train; dig_port->dp.set_idle_link_train = intel_ddi_set_idle_link_train; dig_port->dp.voltage_max = intel_ddi_dp_voltage_max; dig_port->dp.preemph_max = intel_ddi_dp_preemph_max; if (!intel_dp_init_connector(dig_port, connector)) { kfree(connector); return NULL; } if (dig_port->base.type == INTEL_OUTPUT_EDP) { struct drm_device *dev = dig_port->base.base.dev; struct drm_privacy_screen *privacy_screen; privacy_screen = drm_privacy_screen_get(dev->dev, NULL); if (!IS_ERR(privacy_screen)) { drm_connector_attach_privacy_screen_provider(&connector->base, privacy_screen); } else if (PTR_ERR(privacy_screen) != -ENODEV) { drm_warn(dev, "Error getting privacy-screen\n"); } } return connector; } static int intel_hdmi_reset_link(struct intel_encoder *encoder, struct drm_modeset_acquire_ctx *ctx) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_hdmi *hdmi = enc_to_intel_hdmi(encoder); struct intel_connector *connector = hdmi->attached_connector; struct i2c_adapter *ddc = connector->base.ddc; struct drm_connector_state *conn_state; struct intel_crtc_state *crtc_state; struct intel_crtc *crtc; u8 config; int ret; if (connector->base.status != connector_status_connected) return 0; ret = drm_modeset_lock(&dev_priv->drm.mode_config.connection_mutex, ctx); if (ret) return ret; conn_state = connector->base.state; crtc = to_intel_crtc(conn_state->crtc); if (!crtc) return 0; ret = drm_modeset_lock(&crtc->base.mutex, ctx); if (ret) return ret; crtc_state = to_intel_crtc_state(crtc->base.state); drm_WARN_ON(&dev_priv->drm, !intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)); if (!crtc_state->hw.active) return 0; if (!crtc_state->hdmi_high_tmds_clock_ratio && !crtc_state->hdmi_scrambling) return 0; if (conn_state->commit && !try_wait_for_completion(&conn_state->commit->hw_done)) return 0; ret = drm_scdc_readb(ddc, SCDC_TMDS_CONFIG, &config); if (ret < 0) { drm_err(&dev_priv->drm, "[CONNECTOR:%d:%s] Failed to read TMDS config: %d\n", connector->base.base.id, connector->base.name, ret); return 0; } if (!!(config & SCDC_TMDS_BIT_CLOCK_RATIO_BY_40) == crtc_state->hdmi_high_tmds_clock_ratio && !!(config & SCDC_SCRAMBLING_ENABLE) == crtc_state->hdmi_scrambling) return 0; /* * HDMI 2.0 says that one should not send scrambled data * prior to configuring the sink scrambling, and that * TMDS clock/data transmission should be suspended when * changing the TMDS clock rate in the sink. So let's * just do a full modeset here, even though some sinks * would be perfectly happy if were to just reconfigure * the SCDC settings on the fly. */ return intel_modeset_commit_pipes(dev_priv, BIT(crtc->pipe), ctx); } static void intel_ddi_link_check(struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); /* TODO: Move checking the HDMI link state here as well. */ drm_WARN_ON(&i915->drm, !dig_port->dp.attached_connector); intel_dp_link_check(encoder); } static enum intel_hotplug_state intel_ddi_hotplug(struct intel_encoder *encoder, struct intel_connector *connector) { struct intel_digital_port *dig_port = enc_to_dig_port(encoder); struct intel_dp *intel_dp = &dig_port->dp; bool is_tc = intel_encoder_is_tc(encoder); struct drm_modeset_acquire_ctx ctx; enum intel_hotplug_state state; int ret; if (intel_dp->compliance.test_active && intel_dp->compliance.test_type == DP_TEST_LINK_PHY_TEST_PATTERN) { intel_dp_phy_test(encoder); /* just do the PHY test and nothing else */ return INTEL_HOTPLUG_UNCHANGED; } state = intel_encoder_hotplug(encoder, connector); if (!intel_tc_port_link_reset(dig_port)) { if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA) { intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) ret = intel_hdmi_reset_link(encoder, &ctx); drm_WARN_ON(encoder->base.dev, ret); } else { intel_dp_check_link_state(intel_dp); } } /* * Unpowered type-c dongles can take some time to boot and be * responsible, so here giving some time to those dongles to power up * and then retrying the probe. * * On many platforms the HDMI live state signal is known to be * unreliable, so we can't use it to detect if a sink is connected or * not. Instead we detect if it's connected based on whether we can * read the EDID or not. That in turn has a problem during disconnect, * since the HPD interrupt may be raised before the DDC lines get * disconnected (due to how the required length of DDC vs. HPD * connector pins are specified) and so we'll still be able to get a * valid EDID. To solve this schedule another detection cycle if this * time around we didn't detect any change in the sink's connection * status. * * Type-c connectors which get their HPD signal deasserted then * reasserted, without unplugging/replugging the sink from the * connector, introduce a delay until the AUX channel communication * becomes functional. Retry the detection for 5 seconds on type-c * connectors to account for this delay. */ if (state == INTEL_HOTPLUG_UNCHANGED && connector->hotplug_retries < (is_tc ? 5 : 1) && !dig_port->dp.is_mst) state = INTEL_HOTPLUG_RETRY; return state; } static bool lpt_digital_port_connected(struct intel_encoder *encoder) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); u32 bit = dev_priv->display.hotplug.pch_hpd[encoder->hpd_pin]; return intel_de_read(dev_priv, SDEISR) & bit; } static bool hsw_digital_port_connected(struct intel_encoder *encoder) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); u32 bit = dev_priv->display.hotplug.hpd[encoder->hpd_pin]; return intel_de_read(dev_priv, DEISR) & bit; } static bool bdw_digital_port_connected(struct intel_encoder *encoder) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); u32 bit = dev_priv->display.hotplug.hpd[encoder->hpd_pin]; return intel_de_read(dev_priv, GEN8_DE_PORT_ISR) & bit; } static struct intel_connector * intel_ddi_init_hdmi_connector(struct intel_digital_port *dig_port) { struct intel_connector *connector; enum port port = dig_port->base.port; connector = intel_connector_alloc(); if (!connector) return NULL; dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port); intel_hdmi_init_connector(dig_port, connector); return connector; } static bool intel_ddi_a_force_4_lanes(struct intel_digital_port *dig_port) { struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev); if (dig_port->base.port != PORT_A) return false; if (dig_port->saved_port_bits & DDI_A_4_LANES) return false; /* Broxton/Geminilake: Bspec says that DDI_A_4_LANES is the only * supported configuration */ if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) return true; return false; } static int intel_ddi_max_lanes(struct intel_digital_port *dig_port) { struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev); enum port port = dig_port->base.port; int max_lanes = 4; if (DISPLAY_VER(dev_priv) >= 11) return max_lanes; if (port == PORT_A || port == PORT_E) { if (intel_de_read(dev_priv, DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES) max_lanes = port == PORT_A ? 4 : 0; else /* Both A and E share 2 lanes */ max_lanes = 2; } /* * Some BIOS might fail to set this bit on port A if eDP * wasn't lit up at boot. Force this bit set when needed * so we use the proper lane count for our calculations. */ if (intel_ddi_a_force_4_lanes(dig_port)) { drm_dbg_kms(&dev_priv->drm, "Forcing DDI_A_4_LANES for port A\n"); dig_port->saved_port_bits |= DDI_A_4_LANES; max_lanes = 4; } return max_lanes; } static enum hpd_pin xelpd_hpd_pin(struct drm_i915_private *dev_priv, enum port port) { if (port >= PORT_D_XELPD) return HPD_PORT_D + port - PORT_D_XELPD; else if (port >= PORT_TC1) return HPD_PORT_TC1 + port - PORT_TC1; else return HPD_PORT_A + port - PORT_A; } static enum hpd_pin dg1_hpd_pin(struct drm_i915_private *dev_priv, enum port port) { if (port >= PORT_TC1) return HPD_PORT_C + port - PORT_TC1; else return HPD_PORT_A + port - PORT_A; } static enum hpd_pin tgl_hpd_pin(struct drm_i915_private *dev_priv, enum port port) { if (port >= PORT_TC1) return HPD_PORT_TC1 + port - PORT_TC1; else return HPD_PORT_A + port - PORT_A; } static enum hpd_pin rkl_hpd_pin(struct drm_i915_private *dev_priv, enum port port) { if (HAS_PCH_TGP(dev_priv)) return tgl_hpd_pin(dev_priv, port); if (port >= PORT_TC1) return HPD_PORT_C + port - PORT_TC1; else return HPD_PORT_A + port - PORT_A; } static enum hpd_pin icl_hpd_pin(struct drm_i915_private *dev_priv, enum port port) { if (port >= PORT_C) return HPD_PORT_TC1 + port - PORT_C; else return HPD_PORT_A + port - PORT_A; } static enum hpd_pin ehl_hpd_pin(struct drm_i915_private *dev_priv, enum port port) { if (port == PORT_D) return HPD_PORT_A; if (HAS_PCH_TGP(dev_priv)) return icl_hpd_pin(dev_priv, port); return HPD_PORT_A + port - PORT_A; } static enum hpd_pin skl_hpd_pin(struct drm_i915_private *dev_priv, enum port port) { if (HAS_PCH_TGP(dev_priv)) return icl_hpd_pin(dev_priv, port); return HPD_PORT_A + port - PORT_A; } static bool intel_ddi_is_tc(struct drm_i915_private *i915, enum port port) { if (DISPLAY_VER(i915) >= 12) return port >= PORT_TC1; else if (DISPLAY_VER(i915) >= 11) return port >= PORT_C; else return false; } static void intel_ddi_encoder_suspend(struct intel_encoder *encoder) { intel_dp_encoder_suspend(encoder); } static void intel_ddi_tc_encoder_suspend_complete(struct intel_encoder *encoder) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); /* * TODO: Move this to intel_dp_encoder_suspend(), * once modeset locking around that is removed. */ intel_encoder_link_check_flush_work(encoder); intel_tc_port_suspend(dig_port); } static void intel_ddi_encoder_shutdown(struct intel_encoder *encoder) { intel_dp_encoder_shutdown(encoder); intel_hdmi_encoder_shutdown(encoder); } static void intel_ddi_tc_encoder_shutdown_complete(struct intel_encoder *encoder) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); intel_tc_port_cleanup(dig_port); } #define port_tc_name(port) ((port) - PORT_TC1 + '1') #define tc_port_name(tc_port) ((tc_port) - TC_PORT_1 + '1') static bool port_strap_detected(struct drm_i915_private *i915, enum port port) { /* straps not used on skl+ */ if (DISPLAY_VER(i915) >= 9) return true; switch (port) { case PORT_A: return intel_de_read(i915, DDI_BUF_CTL(PORT_A)) & DDI_INIT_DISPLAY_DETECTED; case PORT_B: return intel_de_read(i915, SFUSE_STRAP) & SFUSE_STRAP_DDIB_DETECTED; case PORT_C: return intel_de_read(i915, SFUSE_STRAP) & SFUSE_STRAP_DDIC_DETECTED; case PORT_D: return intel_de_read(i915, SFUSE_STRAP) & SFUSE_STRAP_DDID_DETECTED; case PORT_E: return true; /* no strap for DDI-E */ default: MISSING_CASE(port); return false; } } static bool need_aux_ch(struct intel_encoder *encoder, bool init_dp) { return init_dp || intel_encoder_is_tc(encoder); } static bool assert_has_icl_dsi(struct drm_i915_private *i915) { return !drm_WARN(&i915->drm, !IS_ALDERLAKE_P(i915) && !IS_TIGERLAKE(i915) && DISPLAY_VER(i915) != 11, "Platform does not support DSI\n"); } static bool port_in_use(struct drm_i915_private *i915, enum port port) { struct intel_encoder *encoder; for_each_intel_encoder(&i915->drm, encoder) { /* FIXME what about second port for dual link DSI? */ if (encoder->port == port) return true; } return false; } void intel_ddi_init(struct drm_i915_private *dev_priv, const struct intel_bios_encoder_data *devdata) { struct intel_digital_port *dig_port; struct intel_encoder *encoder; bool init_hdmi, init_dp; enum port port; enum phy phy; port = intel_bios_encoder_port(devdata); if (port == PORT_NONE) return; if (!port_strap_detected(dev_priv, port)) { drm_dbg_kms(&dev_priv->drm, "Port %c strap not detected\n", port_name(port)); return; } if (!assert_port_valid(dev_priv, port)) return; if (port_in_use(dev_priv, port)) { drm_dbg_kms(&dev_priv->drm, "Port %c already claimed\n", port_name(port)); return; } if (intel_bios_encoder_supports_dsi(devdata)) { /* BXT/GLK handled elsewhere, for now at least */ if (!assert_has_icl_dsi(dev_priv)) return; icl_dsi_init(dev_priv, devdata); return; } phy = intel_port_to_phy(dev_priv, port); /* * On platforms with HTI (aka HDPORT), if it's enabled at boot it may * have taken over some of the PHYs and made them unavailable to the * driver. In that case we should skip initializing the corresponding * outputs. */ if (intel_hti_uses_phy(dev_priv, phy)) { drm_dbg_kms(&dev_priv->drm, "PORT %c / PHY %c reserved by HTI\n", port_name(port), phy_name(phy)); return; } init_hdmi = intel_bios_encoder_supports_dvi(devdata) || intel_bios_encoder_supports_hdmi(devdata); init_dp = intel_bios_encoder_supports_dp(devdata); if (intel_bios_encoder_is_lspcon(devdata)) { /* * Lspcon device needs to be driven with DP connector * with special detection sequence. So make sure DP * is initialized before lspcon. */ init_dp = true; init_hdmi = false; drm_dbg_kms(&dev_priv->drm, "VBT says port %c has lspcon\n", port_name(port)); } if (!init_dp && !init_hdmi) { drm_dbg_kms(&dev_priv->drm, "VBT says port %c is not DVI/HDMI/DP compatible, respect it\n", port_name(port)); return; } if (intel_phy_is_snps(dev_priv, phy) && dev_priv->display.snps.phy_failed_calibration & BIT(phy)) { drm_dbg_kms(&dev_priv->drm, "SNPS PHY %c failed to calibrate, proceeding anyway\n", phy_name(phy)); } dig_port = kzalloc(sizeof(*dig_port), GFP_KERNEL); if (!dig_port) return; dig_port->aux_ch = AUX_CH_NONE; encoder = &dig_port->base; encoder->devdata = devdata; if (DISPLAY_VER(dev_priv) >= 13 && port >= PORT_D_XELPD) { drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs, DRM_MODE_ENCODER_TMDS, "DDI %c/PHY %c", port_name(port - PORT_D_XELPD + PORT_D), phy_name(phy)); } else if (DISPLAY_VER(dev_priv) >= 12) { enum tc_port tc_port = intel_port_to_tc(dev_priv, port); drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs, DRM_MODE_ENCODER_TMDS, "DDI %s%c/PHY %s%c", port >= PORT_TC1 ? "TC" : "", port >= PORT_TC1 ? port_tc_name(port) : port_name(port), tc_port != TC_PORT_NONE ? "TC" : "", tc_port != TC_PORT_NONE ? tc_port_name(tc_port) : phy_name(phy)); } else if (DISPLAY_VER(dev_priv) >= 11) { enum tc_port tc_port = intel_port_to_tc(dev_priv, port); drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs, DRM_MODE_ENCODER_TMDS, "DDI %c%s/PHY %s%c", port_name(port), port >= PORT_C ? " (TC)" : "", tc_port != TC_PORT_NONE ? "TC" : "", tc_port != TC_PORT_NONE ? tc_port_name(tc_port) : phy_name(phy)); } else { drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs, DRM_MODE_ENCODER_TMDS, "DDI %c/PHY %c", port_name(port), phy_name(phy)); } intel_encoder_link_check_init(encoder, intel_ddi_link_check); mutex_init(&dig_port->hdcp_mutex); dig_port->num_hdcp_streams = 0; encoder->hotplug = intel_ddi_hotplug; encoder->compute_output_type = intel_ddi_compute_output_type; encoder->compute_config = intel_ddi_compute_config; encoder->compute_config_late = intel_ddi_compute_config_late; encoder->enable = intel_enable_ddi; encoder->pre_pll_enable = intel_ddi_pre_pll_enable; encoder->pre_enable = intel_ddi_pre_enable; encoder->disable = intel_disable_ddi; encoder->post_pll_disable = intel_ddi_post_pll_disable; encoder->post_disable = intel_ddi_post_disable; encoder->update_pipe = intel_ddi_update_pipe; encoder->audio_enable = intel_audio_codec_enable; encoder->audio_disable = intel_audio_codec_disable; encoder->get_hw_state = intel_ddi_get_hw_state; encoder->sync_state = intel_ddi_sync_state; encoder->initial_fastset_check = intel_ddi_initial_fastset_check; encoder->suspend = intel_ddi_encoder_suspend; encoder->shutdown = intel_ddi_encoder_shutdown; encoder->get_power_domains = intel_ddi_get_power_domains; encoder->type = INTEL_OUTPUT_DDI; encoder->power_domain = intel_display_power_ddi_lanes_domain(dev_priv, port); encoder->port = port; encoder->cloneable = 0; encoder->pipe_mask = ~0; if (DISPLAY_VER(dev_priv) >= 14) { encoder->enable_clock = intel_mtl_pll_enable; encoder->disable_clock = intel_mtl_pll_disable; encoder->port_pll_type = intel_mtl_port_pll_type; encoder->get_config = mtl_ddi_get_config; } else if (IS_DG2(dev_priv)) { encoder->enable_clock = intel_mpllb_enable; encoder->disable_clock = intel_mpllb_disable; encoder->get_config = dg2_ddi_get_config; } else if (IS_ALDERLAKE_S(dev_priv)) { encoder->enable_clock = adls_ddi_enable_clock; encoder->disable_clock = adls_ddi_disable_clock; encoder->is_clock_enabled = adls_ddi_is_clock_enabled; encoder->get_config = adls_ddi_get_config; } else if (IS_ROCKETLAKE(dev_priv)) { encoder->enable_clock = rkl_ddi_enable_clock; encoder->disable_clock = rkl_ddi_disable_clock; encoder->is_clock_enabled = rkl_ddi_is_clock_enabled; encoder->get_config = rkl_ddi_get_config; } else if (IS_DG1(dev_priv)) { encoder->enable_clock = dg1_ddi_enable_clock; encoder->disable_clock = dg1_ddi_disable_clock; encoder->is_clock_enabled = dg1_ddi_is_clock_enabled; encoder->get_config = dg1_ddi_get_config; } else if (IS_JASPERLAKE(dev_priv) || IS_ELKHARTLAKE(dev_priv)) { if (intel_ddi_is_tc(dev_priv, port)) { encoder->enable_clock = jsl_ddi_tc_enable_clock; encoder->disable_clock = jsl_ddi_tc_disable_clock; encoder->is_clock_enabled = jsl_ddi_tc_is_clock_enabled; encoder->port_pll_type = icl_ddi_tc_port_pll_type; encoder->get_config = icl_ddi_combo_get_config; } else { encoder->enable_clock = icl_ddi_combo_enable_clock; encoder->disable_clock = icl_ddi_combo_disable_clock; encoder->is_clock_enabled = icl_ddi_combo_is_clock_enabled; encoder->get_config = icl_ddi_combo_get_config; } } else if (DISPLAY_VER(dev_priv) >= 11) { if (intel_ddi_is_tc(dev_priv, port)) { encoder->enable_clock = icl_ddi_tc_enable_clock; encoder->disable_clock = icl_ddi_tc_disable_clock; encoder->is_clock_enabled = icl_ddi_tc_is_clock_enabled; encoder->port_pll_type = icl_ddi_tc_port_pll_type; encoder->get_config = icl_ddi_tc_get_config; } else { encoder->enable_clock = icl_ddi_combo_enable_clock; encoder->disable_clock = icl_ddi_combo_disable_clock; encoder->is_clock_enabled = icl_ddi_combo_is_clock_enabled; encoder->get_config = icl_ddi_combo_get_config; } } else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) { /* BXT/GLK have fixed PLL->port mapping */ encoder->get_config = bxt_ddi_get_config; } else if (DISPLAY_VER(dev_priv) == 9) { encoder->enable_clock = skl_ddi_enable_clock; encoder->disable_clock = skl_ddi_disable_clock; encoder->is_clock_enabled = skl_ddi_is_clock_enabled; encoder->get_config = skl_ddi_get_config; } else if (IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) { encoder->enable_clock = hsw_ddi_enable_clock; encoder->disable_clock = hsw_ddi_disable_clock; encoder->is_clock_enabled = hsw_ddi_is_clock_enabled; encoder->get_config = hsw_ddi_get_config; } if (DISPLAY_VER(dev_priv) >= 14) { encoder->set_signal_levels = intel_cx0_phy_set_signal_levels; } else if (IS_DG2(dev_priv)) { encoder->set_signal_levels = intel_snps_phy_set_signal_levels; } else if (DISPLAY_VER(dev_priv) >= 12) { if (intel_encoder_is_combo(encoder)) encoder->set_signal_levels = icl_combo_phy_set_signal_levels; else encoder->set_signal_levels = tgl_dkl_phy_set_signal_levels; } else if (DISPLAY_VER(dev_priv) >= 11) { if (intel_encoder_is_combo(encoder)) encoder->set_signal_levels = icl_combo_phy_set_signal_levels; else encoder->set_signal_levels = icl_mg_phy_set_signal_levels; } else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) { encoder->set_signal_levels = bxt_dpio_phy_set_signal_levels; } else { encoder->set_signal_levels = hsw_set_signal_levels; } intel_ddi_buf_trans_init(encoder); if (DISPLAY_VER(dev_priv) >= 13) encoder->hpd_pin = xelpd_hpd_pin(dev_priv, port); else if (IS_DG1(dev_priv)) encoder->hpd_pin = dg1_hpd_pin(dev_priv, port); else if (IS_ROCKETLAKE(dev_priv)) encoder->hpd_pin = rkl_hpd_pin(dev_priv, port); else if (DISPLAY_VER(dev_priv) >= 12) encoder->hpd_pin = tgl_hpd_pin(dev_priv, port); else if (IS_JASPERLAKE(dev_priv) || IS_ELKHARTLAKE(dev_priv)) encoder->hpd_pin = ehl_hpd_pin(dev_priv, port); else if (DISPLAY_VER(dev_priv) == 11) encoder->hpd_pin = icl_hpd_pin(dev_priv, port); else if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv)) encoder->hpd_pin = skl_hpd_pin(dev_priv, port); else encoder->hpd_pin = intel_hpd_pin_default(dev_priv, port); if (DISPLAY_VER(dev_priv) >= 11) dig_port->saved_port_bits = intel_de_read(dev_priv, DDI_BUF_CTL(port)) & DDI_BUF_PORT_REVERSAL; else dig_port->saved_port_bits = intel_de_read(dev_priv, DDI_BUF_CTL(port)) & (DDI_BUF_PORT_REVERSAL | DDI_A_4_LANES); if (intel_bios_encoder_lane_reversal(devdata)) dig_port->saved_port_bits |= DDI_BUF_PORT_REVERSAL; dig_port->dp.output_reg = INVALID_MMIO_REG; dig_port->max_lanes = intel_ddi_max_lanes(dig_port); if (need_aux_ch(encoder, init_dp)) { dig_port->aux_ch = intel_dp_aux_ch(encoder); if (dig_port->aux_ch == AUX_CH_NONE) goto err; } if (intel_encoder_is_tc(encoder)) { bool is_legacy = !intel_bios_encoder_supports_typec_usb(devdata) && !intel_bios_encoder_supports_tbt(devdata); if (!is_legacy && init_hdmi) { is_legacy = !init_dp; drm_dbg_kms(&dev_priv->drm, "VBT says port %c is non-legacy TC and has HDMI (with DP: %s), assume it's %s\n", port_name(port), str_yes_no(init_dp), is_legacy ? "legacy" : "non-legacy"); } encoder->suspend_complete = intel_ddi_tc_encoder_suspend_complete; encoder->shutdown_complete = intel_ddi_tc_encoder_shutdown_complete; dig_port->lock = intel_tc_port_lock; dig_port->unlock = intel_tc_port_unlock; if (intel_tc_port_init(dig_port, is_legacy) < 0) goto err; } drm_WARN_ON(&dev_priv->drm, port > PORT_I); dig_port->ddi_io_power_domain = intel_display_power_ddi_io_domain(dev_priv, port); if (DISPLAY_VER(dev_priv) >= 11) { if (intel_encoder_is_tc(encoder)) dig_port->connected = intel_tc_port_connected; else dig_port->connected = lpt_digital_port_connected; } else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) { dig_port->connected = bdw_digital_port_connected; } else if (DISPLAY_VER(dev_priv) == 9) { dig_port->connected = lpt_digital_port_connected; } else if (IS_BROADWELL(dev_priv)) { if (port == PORT_A) dig_port->connected = bdw_digital_port_connected; else dig_port->connected = lpt_digital_port_connected; } else if (IS_HASWELL(dev_priv)) { if (port == PORT_A) dig_port->connected = hsw_digital_port_connected; else dig_port->connected = lpt_digital_port_connected; } intel_infoframe_init(dig_port); if (init_dp) { if (!intel_ddi_init_dp_connector(dig_port)) goto err; dig_port->hpd_pulse = intel_dp_hpd_pulse; if (dig_port->dp.mso_link_count) encoder->pipe_mask = intel_ddi_splitter_pipe_mask(dev_priv); } /* * In theory we don't need the encoder->type check, * but leave it just in case we have some really bad VBTs... */ if (encoder->type != INTEL_OUTPUT_EDP && init_hdmi) { if (!intel_ddi_init_hdmi_connector(dig_port)) goto err; } return; err: drm_encoder_cleanup(&encoder->base); kfree(dig_port); }
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