Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2012 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 21 | * IN THE SOFTWARE. |
| 22 | * |
| 23 | * Authors: |
| 24 | * Eugeni Dodonov <eugeni.dodonov@intel.com> |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | #include "i915_drv.h" |
| 29 | #include "intel_drv.h" |
| 30 | |
| 31 | /* HDMI/DVI modes ignore everything but the last 2 items. So we share |
| 32 | * them for both DP and FDI transports, allowing those ports to |
| 33 | * automatically adapt to HDMI connections as well |
| 34 | */ |
| 35 | static const u32 hsw_ddi_translations_dp[] = { |
| 36 | 0x00FFFFFF, 0x0006000E, /* DP parameters */ |
| 37 | 0x00D75FFF, 0x0005000A, |
| 38 | 0x00C30FFF, 0x00040006, |
| 39 | 0x80AAAFFF, 0x000B0000, |
| 40 | 0x00FFFFFF, 0x0005000A, |
| 41 | 0x00D75FFF, 0x000C0004, |
| 42 | 0x80C30FFF, 0x000B0000, |
| 43 | 0x00FFFFFF, 0x00040006, |
| 44 | 0x80D75FFF, 0x000B0000, |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 45 | }; |
| 46 | |
| 47 | static const u32 hsw_ddi_translations_fdi[] = { |
| 48 | 0x00FFFFFF, 0x0007000E, /* FDI parameters */ |
| 49 | 0x00D75FFF, 0x000F000A, |
| 50 | 0x00C30FFF, 0x00060006, |
| 51 | 0x00AAAFFF, 0x001E0000, |
| 52 | 0x00FFFFFF, 0x000F000A, |
| 53 | 0x00D75FFF, 0x00160004, |
| 54 | 0x00C30FFF, 0x001E0000, |
| 55 | 0x00FFFFFF, 0x00060006, |
| 56 | 0x00D75FFF, 0x001E0000, |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 57 | }; |
| 58 | |
| 59 | static const u32 hsw_ddi_translations_hdmi[] = { |
| 60 | /* Idx NT mV diff T mV diff db */ |
| 61 | 0x00FFFFFF, 0x0006000E, /* 0: 400 400 0 */ |
| 62 | 0x00E79FFF, 0x000E000C, /* 1: 400 500 2 */ |
| 63 | 0x00D75FFF, 0x0005000A, /* 2: 400 600 3.5 */ |
| 64 | 0x00FFFFFF, 0x0005000A, /* 3: 600 600 0 */ |
| 65 | 0x00E79FFF, 0x001D0007, /* 4: 600 750 2 */ |
| 66 | 0x00D75FFF, 0x000C0004, /* 5: 600 900 3.5 */ |
| 67 | 0x00FFFFFF, 0x00040006, /* 6: 800 800 0 */ |
| 68 | 0x80E79FFF, 0x00030002, /* 7: 800 1000 2 */ |
| 69 | 0x00FFFFFF, 0x00140005, /* 8: 850 850 0 */ |
| 70 | 0x00FFFFFF, 0x000C0004, /* 9: 900 900 0 */ |
| 71 | 0x00FFFFFF, 0x001C0003, /* 10: 950 950 0 */ |
| 72 | 0x80FFFFFF, 0x00030002, /* 11: 1000 1000 0 */ |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 73 | }; |
| 74 | |
Jani Nikula | 20f4dbe | 2013-08-30 19:40:28 +0300 | [diff] [blame] | 75 | enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 76 | { |
Paulo Zanoni | 0bdee30 | 2012-10-15 15:51:38 -0300 | [diff] [blame] | 77 | struct drm_encoder *encoder = &intel_encoder->base; |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 78 | int type = intel_encoder->type; |
| 79 | |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 80 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP || |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 81 | type == INTEL_OUTPUT_HDMI || type == INTEL_OUTPUT_UNKNOWN) { |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 82 | struct intel_digital_port *intel_dig_port = |
| 83 | enc_to_dig_port(encoder); |
| 84 | return intel_dig_port->port; |
Paulo Zanoni | 0bdee30 | 2012-10-15 15:51:38 -0300 | [diff] [blame] | 85 | |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 86 | } else if (type == INTEL_OUTPUT_ANALOG) { |
| 87 | return PORT_E; |
Paulo Zanoni | 0bdee30 | 2012-10-15 15:51:38 -0300 | [diff] [blame] | 88 | |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 89 | } else { |
| 90 | DRM_ERROR("Invalid DDI encoder type %d\n", type); |
| 91 | BUG(); |
| 92 | } |
| 93 | } |
| 94 | |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 95 | /* On Haswell, DDI port buffers must be programmed with correct values |
| 96 | * in advance. The buffer values are different for FDI and DP modes, |
| 97 | * but the HDMI/DVI fields are shared among those. So we program the DDI |
| 98 | * in either FDI or DP modes only, as HDMI connections will work with both |
| 99 | * of those |
| 100 | */ |
Paulo Zanoni | ad8d270 | 2013-08-05 17:25:56 -0300 | [diff] [blame] | 101 | static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port) |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 102 | { |
| 103 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 104 | u32 reg; |
| 105 | int i; |
Paulo Zanoni | ad8d270 | 2013-08-05 17:25:56 -0300 | [diff] [blame] | 106 | const u32 *ddi_translations = (port == PORT_E) ? |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 107 | hsw_ddi_translations_fdi : |
Paulo Zanoni | ad8d270 | 2013-08-05 17:25:56 -0300 | [diff] [blame] | 108 | hsw_ddi_translations_dp; |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 109 | int hdmi_level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift; |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 110 | |
Paulo Zanoni | f72d19f | 2013-08-05 17:25:55 -0300 | [diff] [blame] | 111 | for (i = 0, reg = DDI_BUF_TRANS(port); |
| 112 | i < ARRAY_SIZE(hsw_ddi_translations_fdi); i++) { |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 113 | I915_WRITE(reg, ddi_translations[i]); |
| 114 | reg += 4; |
| 115 | } |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 116 | /* Entry 9 is for HDMI: */ |
| 117 | for (i = 0; i < 2; i++) { |
| 118 | I915_WRITE(reg, hsw_ddi_translations_hdmi[hdmi_level * 2 + i]); |
| 119 | reg += 4; |
| 120 | } |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | /* Program DDI buffers translations for DP. By default, program ports A-D in DP |
| 124 | * mode and port E for FDI. |
| 125 | */ |
| 126 | void intel_prepare_ddi(struct drm_device *dev) |
| 127 | { |
| 128 | int port; |
| 129 | |
Paulo Zanoni | 0d536cb | 2012-11-23 16:46:41 -0200 | [diff] [blame] | 130 | if (!HAS_DDI(dev)) |
| 131 | return; |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 132 | |
Paulo Zanoni | ad8d270 | 2013-08-05 17:25:56 -0300 | [diff] [blame] | 133 | for (port = PORT_A; port <= PORT_E; port++) |
| 134 | intel_prepare_ddi_buffers(dev, port); |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 135 | } |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 136 | |
| 137 | static const long hsw_ddi_buf_ctl_values[] = { |
| 138 | DDI_BUF_EMP_400MV_0DB_HSW, |
| 139 | DDI_BUF_EMP_400MV_3_5DB_HSW, |
| 140 | DDI_BUF_EMP_400MV_6DB_HSW, |
| 141 | DDI_BUF_EMP_400MV_9_5DB_HSW, |
| 142 | DDI_BUF_EMP_600MV_0DB_HSW, |
| 143 | DDI_BUF_EMP_600MV_3_5DB_HSW, |
| 144 | DDI_BUF_EMP_600MV_6DB_HSW, |
| 145 | DDI_BUF_EMP_800MV_0DB_HSW, |
| 146 | DDI_BUF_EMP_800MV_3_5DB_HSW |
| 147 | }; |
| 148 | |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 149 | static void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv, |
| 150 | enum port port) |
| 151 | { |
| 152 | uint32_t reg = DDI_BUF_CTL(port); |
| 153 | int i; |
| 154 | |
| 155 | for (i = 0; i < 8; i++) { |
| 156 | udelay(1); |
| 157 | if (I915_READ(reg) & DDI_BUF_IS_IDLE) |
| 158 | return; |
| 159 | } |
| 160 | DRM_ERROR("Timeout waiting for DDI BUF %c idle bit\n", port_name(port)); |
| 161 | } |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 162 | |
| 163 | /* Starting with Haswell, different DDI ports can work in FDI mode for |
| 164 | * connection to the PCH-located connectors. For this, it is necessary to train |
| 165 | * both the DDI port and PCH receiver for the desired DDI buffer settings. |
| 166 | * |
| 167 | * The recommended port to work in FDI mode is DDI E, which we use here. Also, |
| 168 | * please note that when FDI mode is active on DDI E, it shares 2 lines with |
| 169 | * DDI A (which is used for eDP) |
| 170 | */ |
| 171 | |
| 172 | void hsw_fdi_link_train(struct drm_crtc *crtc) |
| 173 | { |
| 174 | struct drm_device *dev = crtc->dev; |
| 175 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 176 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 177 | u32 temp, i, rx_ctl_val; |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 178 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 179 | /* Set the FDI_RX_MISC pwrdn lanes and the 2 workarounds listed at the |
| 180 | * mode set "sequence for CRT port" document: |
| 181 | * - TP1 to TP2 time with the default value |
| 182 | * - FDI delay to 90h |
Damien Lespiau | 8693a82 | 2013-05-03 18:48:11 +0100 | [diff] [blame] | 183 | * |
| 184 | * WaFDIAutoLinkSetTimingOverrride:hsw |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 185 | */ |
| 186 | I915_WRITE(_FDI_RXA_MISC, FDI_RX_PWRDN_LANE1_VAL(2) | |
| 187 | FDI_RX_PWRDN_LANE0_VAL(2) | |
| 188 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); |
| 189 | |
| 190 | /* Enable the PCH Receiver FDI PLL */ |
Damien Lespiau | 3e68320 | 2012-12-11 18:48:29 +0000 | [diff] [blame] | 191 | rx_ctl_val = dev_priv->fdi_rx_config | FDI_RX_ENHANCE_FRAME_ENABLE | |
Daniel Vetter | 33d29b1 | 2013-02-13 18:04:45 +0100 | [diff] [blame] | 192 | FDI_RX_PLL_ENABLE | |
Daniel Vetter | 627eb5a | 2013-04-29 19:33:42 +0200 | [diff] [blame] | 193 | FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 194 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
| 195 | POSTING_READ(_FDI_RXA_CTL); |
| 196 | udelay(220); |
| 197 | |
| 198 | /* Switch from Rawclk to PCDclk */ |
| 199 | rx_ctl_val |= FDI_PCDCLK; |
| 200 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
| 201 | |
| 202 | /* Configure Port Clock Select */ |
| 203 | I915_WRITE(PORT_CLK_SEL(PORT_E), intel_crtc->ddi_pll_sel); |
| 204 | |
| 205 | /* Start the training iterating through available voltages and emphasis, |
| 206 | * testing each value twice. */ |
| 207 | for (i = 0; i < ARRAY_SIZE(hsw_ddi_buf_ctl_values) * 2; i++) { |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 208 | /* Configure DP_TP_CTL with auto-training */ |
| 209 | I915_WRITE(DP_TP_CTL(PORT_E), |
| 210 | DP_TP_CTL_FDI_AUTOTRAIN | |
| 211 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | |
| 212 | DP_TP_CTL_LINK_TRAIN_PAT1 | |
| 213 | DP_TP_CTL_ENABLE); |
| 214 | |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 215 | /* Configure and enable DDI_BUF_CTL for DDI E with next voltage. |
| 216 | * DDI E does not support port reversal, the functionality is |
| 217 | * achieved on the PCH side in FDI_RX_CTL, so no need to set the |
| 218 | * port reversal bit */ |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 219 | I915_WRITE(DDI_BUF_CTL(PORT_E), |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 220 | DDI_BUF_CTL_ENABLE | |
Daniel Vetter | 33d29b1 | 2013-02-13 18:04:45 +0100 | [diff] [blame] | 221 | ((intel_crtc->config.fdi_lanes - 1) << 1) | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 222 | hsw_ddi_buf_ctl_values[i / 2]); |
| 223 | POSTING_READ(DDI_BUF_CTL(PORT_E)); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 224 | |
| 225 | udelay(600); |
| 226 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 227 | /* Program PCH FDI Receiver TU */ |
| 228 | I915_WRITE(_FDI_RXA_TUSIZE1, TU_SIZE(64)); |
Eugeni Dodonov | 4acf518 | 2012-07-04 20:15:16 -0300 | [diff] [blame] | 229 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 230 | /* Enable PCH FDI Receiver with auto-training */ |
| 231 | rx_ctl_val |= FDI_RX_ENABLE | FDI_LINK_TRAIN_AUTO; |
| 232 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
| 233 | POSTING_READ(_FDI_RXA_CTL); |
| 234 | |
| 235 | /* Wait for FDI receiver lane calibration */ |
| 236 | udelay(30); |
| 237 | |
| 238 | /* Unset FDI_RX_MISC pwrdn lanes */ |
| 239 | temp = I915_READ(_FDI_RXA_MISC); |
| 240 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
| 241 | I915_WRITE(_FDI_RXA_MISC, temp); |
| 242 | POSTING_READ(_FDI_RXA_MISC); |
| 243 | |
| 244 | /* Wait for FDI auto training time */ |
| 245 | udelay(5); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 246 | |
| 247 | temp = I915_READ(DP_TP_STATUS(PORT_E)); |
| 248 | if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) { |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 249 | DRM_DEBUG_KMS("FDI link training done on step %d\n", i); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 250 | |
| 251 | /* Enable normal pixel sending for FDI */ |
| 252 | I915_WRITE(DP_TP_CTL(PORT_E), |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 253 | DP_TP_CTL_FDI_AUTOTRAIN | |
| 254 | DP_TP_CTL_LINK_TRAIN_NORMAL | |
| 255 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | |
| 256 | DP_TP_CTL_ENABLE); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 257 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 258 | return; |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 259 | } |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 260 | |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 261 | temp = I915_READ(DDI_BUF_CTL(PORT_E)); |
| 262 | temp &= ~DDI_BUF_CTL_ENABLE; |
| 263 | I915_WRITE(DDI_BUF_CTL(PORT_E), temp); |
| 264 | POSTING_READ(DDI_BUF_CTL(PORT_E)); |
| 265 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 266 | /* Disable DP_TP_CTL and FDI_RX_CTL and retry */ |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 267 | temp = I915_READ(DP_TP_CTL(PORT_E)); |
| 268 | temp &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); |
| 269 | temp |= DP_TP_CTL_LINK_TRAIN_PAT1; |
| 270 | I915_WRITE(DP_TP_CTL(PORT_E), temp); |
| 271 | POSTING_READ(DP_TP_CTL(PORT_E)); |
| 272 | |
| 273 | intel_wait_ddi_buf_idle(dev_priv, PORT_E); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 274 | |
| 275 | rx_ctl_val &= ~FDI_RX_ENABLE; |
| 276 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 277 | POSTING_READ(_FDI_RXA_CTL); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 278 | |
| 279 | /* Reset FDI_RX_MISC pwrdn lanes */ |
| 280 | temp = I915_READ(_FDI_RXA_MISC); |
| 281 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
| 282 | temp |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); |
| 283 | I915_WRITE(_FDI_RXA_MISC, temp); |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 284 | POSTING_READ(_FDI_RXA_MISC); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 285 | } |
| 286 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 287 | DRM_ERROR("FDI link training failed!\n"); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 288 | } |
Eugeni Dodonov | 0e72a5b | 2012-05-09 15:37:27 -0300 | [diff] [blame] | 289 | |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 290 | static void intel_ddi_mode_set(struct intel_encoder *encoder) |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 291 | { |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 292 | struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); |
| 293 | int port = intel_ddi_get_encoder_port(encoder); |
| 294 | int pipe = crtc->pipe; |
| 295 | int type = encoder->type; |
| 296 | struct drm_display_mode *adjusted_mode = &crtc->config.adjusted_mode; |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 297 | |
Damien Lespiau | bf98a72 | 2013-04-19 14:27:31 +0100 | [diff] [blame] | 298 | DRM_DEBUG_KMS("Preparing DDI mode on port %c, pipe %c\n", |
Paulo Zanoni | 247d89f | 2012-10-15 15:51:33 -0300 | [diff] [blame] | 299 | port_name(port), pipe_name(pipe)); |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 300 | |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 301 | crtc->eld_vld = false; |
Paulo Zanoni | 247d89f | 2012-10-15 15:51:33 -0300 | [diff] [blame] | 302 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 303 | struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 304 | struct intel_digital_port *intel_dig_port = |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 305 | enc_to_dig_port(&encoder->base); |
Wang Xingchao | 4f07854 | 2012-08-09 16:52:16 +0800 | [diff] [blame] | 306 | |
Stéphane Marchesin | bcf53de | 2013-07-12 13:54:41 -0700 | [diff] [blame] | 307 | intel_dp->DP = intel_dig_port->saved_port_bits | |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 308 | DDI_BUF_CTL_ENABLE | DDI_BUF_EMP_400MV_0DB_HSW; |
Daniel Vetter | 17aa6be | 2013-04-30 14:01:40 +0200 | [diff] [blame] | 309 | intel_dp->DP |= DDI_PORT_WIDTH(intel_dp->lane_count); |
Paulo Zanoni | 247d89f | 2012-10-15 15:51:33 -0300 | [diff] [blame] | 310 | |
Takashi Iwai | 8fed619 | 2012-11-19 18:06:51 +0100 | [diff] [blame] | 311 | if (intel_dp->has_audio) { |
| 312 | DRM_DEBUG_DRIVER("DP audio on pipe %c on DDI\n", |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 313 | pipe_name(crtc->pipe)); |
Takashi Iwai | 8fed619 | 2012-11-19 18:06:51 +0100 | [diff] [blame] | 314 | |
| 315 | /* write eld */ |
| 316 | DRM_DEBUG_DRIVER("DP audio: write eld information\n"); |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 317 | intel_write_eld(&encoder->base, adjusted_mode); |
Takashi Iwai | 8fed619 | 2012-11-19 18:06:51 +0100 | [diff] [blame] | 318 | } |
Paulo Zanoni | 247d89f | 2012-10-15 15:51:33 -0300 | [diff] [blame] | 319 | } else if (type == INTEL_OUTPUT_HDMI) { |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 320 | struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
Paulo Zanoni | 247d89f | 2012-10-15 15:51:33 -0300 | [diff] [blame] | 321 | |
| 322 | if (intel_hdmi->has_audio) { |
| 323 | /* Proper support for digital audio needs a new logic |
| 324 | * and a new set of registers, so we leave it for future |
| 325 | * patch bombing. |
| 326 | */ |
| 327 | DRM_DEBUG_DRIVER("HDMI audio on pipe %c on DDI\n", |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 328 | pipe_name(crtc->pipe)); |
Paulo Zanoni | 247d89f | 2012-10-15 15:51:33 -0300 | [diff] [blame] | 329 | |
| 330 | /* write eld */ |
| 331 | DRM_DEBUG_DRIVER("HDMI audio: write eld information\n"); |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 332 | intel_write_eld(&encoder->base, adjusted_mode); |
Paulo Zanoni | 247d89f | 2012-10-15 15:51:33 -0300 | [diff] [blame] | 333 | } |
| 334 | |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 335 | intel_hdmi->set_infoframes(&encoder->base, adjusted_mode); |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 336 | } |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 337 | } |
| 338 | |
| 339 | static struct intel_encoder * |
| 340 | intel_ddi_get_crtc_encoder(struct drm_crtc *crtc) |
| 341 | { |
| 342 | struct drm_device *dev = crtc->dev; |
| 343 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 344 | struct intel_encoder *intel_encoder, *ret = NULL; |
| 345 | int num_encoders = 0; |
| 346 | |
| 347 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
| 348 | ret = intel_encoder; |
| 349 | num_encoders++; |
| 350 | } |
| 351 | |
| 352 | if (num_encoders != 1) |
Ville Syrjälä | 84f44ce | 2013-04-17 17:48:49 +0300 | [diff] [blame] | 353 | WARN(1, "%d encoders on crtc for pipe %c\n", num_encoders, |
| 354 | pipe_name(intel_crtc->pipe)); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 355 | |
| 356 | BUG_ON(ret == NULL); |
| 357 | return ret; |
| 358 | } |
| 359 | |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 360 | void intel_ddi_put_crtc_pll(struct drm_crtc *crtc) |
| 361 | { |
| 362 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 363 | struct intel_ddi_plls *plls = &dev_priv->ddi_plls; |
| 364 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 365 | uint32_t val; |
| 366 | |
| 367 | switch (intel_crtc->ddi_pll_sel) { |
| 368 | case PORT_CLK_SEL_SPLL: |
| 369 | plls->spll_refcount--; |
| 370 | if (plls->spll_refcount == 0) { |
| 371 | DRM_DEBUG_KMS("Disabling SPLL\n"); |
| 372 | val = I915_READ(SPLL_CTL); |
| 373 | WARN_ON(!(val & SPLL_PLL_ENABLE)); |
| 374 | I915_WRITE(SPLL_CTL, val & ~SPLL_PLL_ENABLE); |
| 375 | POSTING_READ(SPLL_CTL); |
| 376 | } |
| 377 | break; |
| 378 | case PORT_CLK_SEL_WRPLL1: |
| 379 | plls->wrpll1_refcount--; |
| 380 | if (plls->wrpll1_refcount == 0) { |
| 381 | DRM_DEBUG_KMS("Disabling WRPLL 1\n"); |
| 382 | val = I915_READ(WRPLL_CTL1); |
| 383 | WARN_ON(!(val & WRPLL_PLL_ENABLE)); |
| 384 | I915_WRITE(WRPLL_CTL1, val & ~WRPLL_PLL_ENABLE); |
| 385 | POSTING_READ(WRPLL_CTL1); |
| 386 | } |
| 387 | break; |
| 388 | case PORT_CLK_SEL_WRPLL2: |
| 389 | plls->wrpll2_refcount--; |
| 390 | if (plls->wrpll2_refcount == 0) { |
| 391 | DRM_DEBUG_KMS("Disabling WRPLL 2\n"); |
| 392 | val = I915_READ(WRPLL_CTL2); |
| 393 | WARN_ON(!(val & WRPLL_PLL_ENABLE)); |
| 394 | I915_WRITE(WRPLL_CTL2, val & ~WRPLL_PLL_ENABLE); |
| 395 | POSTING_READ(WRPLL_CTL2); |
| 396 | } |
| 397 | break; |
| 398 | } |
| 399 | |
| 400 | WARN(plls->spll_refcount < 0, "Invalid SPLL refcount\n"); |
| 401 | WARN(plls->wrpll1_refcount < 0, "Invalid WRPLL1 refcount\n"); |
| 402 | WARN(plls->wrpll2_refcount < 0, "Invalid WRPLL2 refcount\n"); |
| 403 | |
| 404 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_NONE; |
| 405 | } |
| 406 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 407 | #define LC_FREQ 2700 |
| 408 | #define LC_FREQ_2K (LC_FREQ * 2000) |
| 409 | |
| 410 | #define P_MIN 2 |
| 411 | #define P_MAX 64 |
| 412 | #define P_INC 2 |
| 413 | |
| 414 | /* Constraints for PLL good behavior */ |
| 415 | #define REF_MIN 48 |
| 416 | #define REF_MAX 400 |
| 417 | #define VCO_MIN 2400 |
| 418 | #define VCO_MAX 4800 |
| 419 | |
| 420 | #define ABS_DIFF(a, b) ((a > b) ? (a - b) : (b - a)) |
| 421 | |
| 422 | struct wrpll_rnp { |
| 423 | unsigned p, n2, r2; |
| 424 | }; |
| 425 | |
| 426 | static unsigned wrpll_get_budget_for_freq(int clock) |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 427 | { |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 428 | unsigned budget; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 429 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 430 | switch (clock) { |
| 431 | case 25175000: |
| 432 | case 25200000: |
| 433 | case 27000000: |
| 434 | case 27027000: |
| 435 | case 37762500: |
| 436 | case 37800000: |
| 437 | case 40500000: |
| 438 | case 40541000: |
| 439 | case 54000000: |
| 440 | case 54054000: |
| 441 | case 59341000: |
| 442 | case 59400000: |
| 443 | case 72000000: |
| 444 | case 74176000: |
| 445 | case 74250000: |
| 446 | case 81000000: |
| 447 | case 81081000: |
| 448 | case 89012000: |
| 449 | case 89100000: |
| 450 | case 108000000: |
| 451 | case 108108000: |
| 452 | case 111264000: |
| 453 | case 111375000: |
| 454 | case 148352000: |
| 455 | case 148500000: |
| 456 | case 162000000: |
| 457 | case 162162000: |
| 458 | case 222525000: |
| 459 | case 222750000: |
| 460 | case 296703000: |
| 461 | case 297000000: |
| 462 | budget = 0; |
| 463 | break; |
| 464 | case 233500000: |
| 465 | case 245250000: |
| 466 | case 247750000: |
| 467 | case 253250000: |
| 468 | case 298000000: |
| 469 | budget = 1500; |
| 470 | break; |
| 471 | case 169128000: |
| 472 | case 169500000: |
| 473 | case 179500000: |
| 474 | case 202000000: |
| 475 | budget = 2000; |
| 476 | break; |
| 477 | case 256250000: |
| 478 | case 262500000: |
| 479 | case 270000000: |
| 480 | case 272500000: |
| 481 | case 273750000: |
| 482 | case 280750000: |
| 483 | case 281250000: |
| 484 | case 286000000: |
| 485 | case 291750000: |
| 486 | budget = 4000; |
| 487 | break; |
| 488 | case 267250000: |
| 489 | case 268500000: |
| 490 | budget = 5000; |
| 491 | break; |
| 492 | default: |
| 493 | budget = 1000; |
| 494 | break; |
| 495 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 496 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 497 | return budget; |
| 498 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 499 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 500 | static void wrpll_update_rnp(uint64_t freq2k, unsigned budget, |
| 501 | unsigned r2, unsigned n2, unsigned p, |
| 502 | struct wrpll_rnp *best) |
| 503 | { |
| 504 | uint64_t a, b, c, d, diff, diff_best; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 505 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 506 | /* No best (r,n,p) yet */ |
| 507 | if (best->p == 0) { |
| 508 | best->p = p; |
| 509 | best->n2 = n2; |
| 510 | best->r2 = r2; |
| 511 | return; |
| 512 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 513 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 514 | /* |
| 515 | * Output clock is (LC_FREQ_2K / 2000) * N / (P * R), which compares to |
| 516 | * freq2k. |
| 517 | * |
| 518 | * delta = 1e6 * |
| 519 | * abs(freq2k - (LC_FREQ_2K * n2/(p * r2))) / |
| 520 | * freq2k; |
| 521 | * |
| 522 | * and we would like delta <= budget. |
| 523 | * |
| 524 | * If the discrepancy is above the PPM-based budget, always prefer to |
| 525 | * improve upon the previous solution. However, if you're within the |
| 526 | * budget, try to maximize Ref * VCO, that is N / (P * R^2). |
| 527 | */ |
| 528 | a = freq2k * budget * p * r2; |
| 529 | b = freq2k * budget * best->p * best->r2; |
| 530 | diff = ABS_DIFF((freq2k * p * r2), (LC_FREQ_2K * n2)); |
| 531 | diff_best = ABS_DIFF((freq2k * best->p * best->r2), |
| 532 | (LC_FREQ_2K * best->n2)); |
| 533 | c = 1000000 * diff; |
| 534 | d = 1000000 * diff_best; |
| 535 | |
| 536 | if (a < c && b < d) { |
| 537 | /* If both are above the budget, pick the closer */ |
| 538 | if (best->p * best->r2 * diff < p * r2 * diff_best) { |
| 539 | best->p = p; |
| 540 | best->n2 = n2; |
| 541 | best->r2 = r2; |
| 542 | } |
| 543 | } else if (a >= c && b < d) { |
| 544 | /* If A is below the threshold but B is above it? Update. */ |
| 545 | best->p = p; |
| 546 | best->n2 = n2; |
| 547 | best->r2 = r2; |
| 548 | } else if (a >= c && b >= d) { |
| 549 | /* Both are below the limit, so pick the higher n2/(r2*r2) */ |
| 550 | if (n2 * best->r2 * best->r2 > best->n2 * r2 * r2) { |
| 551 | best->p = p; |
| 552 | best->n2 = n2; |
| 553 | best->r2 = r2; |
| 554 | } |
| 555 | } |
| 556 | /* Otherwise a < c && b >= d, do nothing */ |
| 557 | } |
| 558 | |
| 559 | static void |
| 560 | intel_ddi_calculate_wrpll(int clock /* in Hz */, |
| 561 | unsigned *r2_out, unsigned *n2_out, unsigned *p_out) |
| 562 | { |
| 563 | uint64_t freq2k; |
| 564 | unsigned p, n2, r2; |
| 565 | struct wrpll_rnp best = { 0, 0, 0 }; |
| 566 | unsigned budget; |
| 567 | |
| 568 | freq2k = clock / 100; |
| 569 | |
| 570 | budget = wrpll_get_budget_for_freq(clock); |
| 571 | |
| 572 | /* Special case handling for 540 pixel clock: bypass WR PLL entirely |
| 573 | * and directly pass the LC PLL to it. */ |
| 574 | if (freq2k == 5400000) { |
| 575 | *n2_out = 2; |
| 576 | *p_out = 1; |
| 577 | *r2_out = 2; |
| 578 | return; |
| 579 | } |
| 580 | |
| 581 | /* |
| 582 | * Ref = LC_FREQ / R, where Ref is the actual reference input seen by |
| 583 | * the WR PLL. |
| 584 | * |
| 585 | * We want R so that REF_MIN <= Ref <= REF_MAX. |
| 586 | * Injecting R2 = 2 * R gives: |
| 587 | * REF_MAX * r2 > LC_FREQ * 2 and |
| 588 | * REF_MIN * r2 < LC_FREQ * 2 |
| 589 | * |
| 590 | * Which means the desired boundaries for r2 are: |
| 591 | * LC_FREQ * 2 / REF_MAX < r2 < LC_FREQ * 2 / REF_MIN |
| 592 | * |
| 593 | */ |
| 594 | for (r2 = LC_FREQ * 2 / REF_MAX + 1; |
| 595 | r2 <= LC_FREQ * 2 / REF_MIN; |
| 596 | r2++) { |
| 597 | |
| 598 | /* |
| 599 | * VCO = N * Ref, that is: VCO = N * LC_FREQ / R |
| 600 | * |
| 601 | * Once again we want VCO_MIN <= VCO <= VCO_MAX. |
| 602 | * Injecting R2 = 2 * R and N2 = 2 * N, we get: |
| 603 | * VCO_MAX * r2 > n2 * LC_FREQ and |
| 604 | * VCO_MIN * r2 < n2 * LC_FREQ) |
| 605 | * |
| 606 | * Which means the desired boundaries for n2 are: |
| 607 | * VCO_MIN * r2 / LC_FREQ < n2 < VCO_MAX * r2 / LC_FREQ |
| 608 | */ |
| 609 | for (n2 = VCO_MIN * r2 / LC_FREQ + 1; |
| 610 | n2 <= VCO_MAX * r2 / LC_FREQ; |
| 611 | n2++) { |
| 612 | |
| 613 | for (p = P_MIN; p <= P_MAX; p += P_INC) |
| 614 | wrpll_update_rnp(freq2k, budget, |
| 615 | r2, n2, p, &best); |
| 616 | } |
| 617 | } |
| 618 | |
| 619 | *n2_out = best.n2; |
| 620 | *p_out = best.p; |
| 621 | *r2_out = best.r2; |
| 622 | |
| 623 | DRM_DEBUG_KMS("WRPLL: %dHz refresh rate with p=%d, n2=%d r2=%d\n", |
| 624 | clock, *p_out, *n2_out, *r2_out); |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 625 | } |
| 626 | |
Daniel Vetter | ff9a675 | 2013-06-01 17:16:21 +0200 | [diff] [blame] | 627 | bool intel_ddi_pll_mode_set(struct drm_crtc *crtc) |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 628 | { |
| 629 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 630 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
Paulo Zanoni | 068759b | 2012-10-15 15:51:31 -0300 | [diff] [blame] | 631 | struct drm_encoder *encoder = &intel_encoder->base; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 632 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 633 | struct intel_ddi_plls *plls = &dev_priv->ddi_plls; |
| 634 | int type = intel_encoder->type; |
| 635 | enum pipe pipe = intel_crtc->pipe; |
| 636 | uint32_t reg, val; |
Daniel Vetter | ff9a675 | 2013-06-01 17:16:21 +0200 | [diff] [blame] | 637 | int clock = intel_crtc->config.port_clock; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 638 | |
| 639 | /* TODO: reuse PLLs when possible (compare values) */ |
| 640 | |
| 641 | intel_ddi_put_crtc_pll(crtc); |
| 642 | |
Paulo Zanoni | 068759b | 2012-10-15 15:51:31 -0300 | [diff] [blame] | 643 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
| 644 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 645 | |
| 646 | switch (intel_dp->link_bw) { |
| 647 | case DP_LINK_BW_1_62: |
| 648 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_810; |
| 649 | break; |
| 650 | case DP_LINK_BW_2_7: |
| 651 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_1350; |
| 652 | break; |
| 653 | case DP_LINK_BW_5_4: |
| 654 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_2700; |
| 655 | break; |
| 656 | default: |
| 657 | DRM_ERROR("Link bandwidth %d unsupported\n", |
| 658 | intel_dp->link_bw); |
| 659 | return false; |
| 660 | } |
| 661 | |
| 662 | /* We don't need to turn any PLL on because we'll use LCPLL. */ |
| 663 | return true; |
| 664 | |
| 665 | } else if (type == INTEL_OUTPUT_HDMI) { |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 666 | unsigned p, n2, r2; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 667 | |
| 668 | if (plls->wrpll1_refcount == 0) { |
| 669 | DRM_DEBUG_KMS("Using WRPLL 1 on pipe %c\n", |
| 670 | pipe_name(pipe)); |
| 671 | plls->wrpll1_refcount++; |
| 672 | reg = WRPLL_CTL1; |
| 673 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_WRPLL1; |
| 674 | } else if (plls->wrpll2_refcount == 0) { |
| 675 | DRM_DEBUG_KMS("Using WRPLL 2 on pipe %c\n", |
| 676 | pipe_name(pipe)); |
| 677 | plls->wrpll2_refcount++; |
| 678 | reg = WRPLL_CTL2; |
| 679 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_WRPLL2; |
| 680 | } else { |
| 681 | DRM_ERROR("No WRPLLs available!\n"); |
| 682 | return false; |
| 683 | } |
| 684 | |
| 685 | WARN(I915_READ(reg) & WRPLL_PLL_ENABLE, |
| 686 | "WRPLL already enabled\n"); |
| 687 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 688 | intel_ddi_calculate_wrpll(clock * 1000, &r2, &n2, &p); |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 689 | |
| 690 | val = WRPLL_PLL_ENABLE | WRPLL_PLL_SELECT_LCPLL_2700 | |
| 691 | WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) | |
| 692 | WRPLL_DIVIDER_POST(p); |
| 693 | |
| 694 | } else if (type == INTEL_OUTPUT_ANALOG) { |
| 695 | if (plls->spll_refcount == 0) { |
| 696 | DRM_DEBUG_KMS("Using SPLL on pipe %c\n", |
| 697 | pipe_name(pipe)); |
| 698 | plls->spll_refcount++; |
| 699 | reg = SPLL_CTL; |
| 700 | intel_crtc->ddi_pll_sel = PORT_CLK_SEL_SPLL; |
Damien Lespiau | 00037c2 | 2013-03-07 15:30:25 +0000 | [diff] [blame] | 701 | } else { |
| 702 | DRM_ERROR("SPLL already in use\n"); |
| 703 | return false; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 704 | } |
| 705 | |
| 706 | WARN(I915_READ(reg) & SPLL_PLL_ENABLE, |
| 707 | "SPLL already enabled\n"); |
| 708 | |
Damien Lespiau | 39bc66c | 2012-10-11 15:24:04 +0100 | [diff] [blame] | 709 | val = SPLL_PLL_ENABLE | SPLL_PLL_FREQ_1350MHz | SPLL_PLL_SSC; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 710 | |
| 711 | } else { |
| 712 | WARN(1, "Invalid DDI encoder type %d\n", type); |
| 713 | return false; |
| 714 | } |
| 715 | |
| 716 | I915_WRITE(reg, val); |
| 717 | udelay(20); |
| 718 | |
| 719 | return true; |
| 720 | } |
| 721 | |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 722 | void intel_ddi_set_pipe_settings(struct drm_crtc *crtc) |
| 723 | { |
| 724 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 725 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 726 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
Daniel Vetter | 3b117c8 | 2013-04-17 20:15:07 +0200 | [diff] [blame] | 727 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 728 | int type = intel_encoder->type; |
| 729 | uint32_t temp; |
| 730 | |
| 731 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
| 732 | |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 733 | temp = TRANS_MSA_SYNC_CLK; |
Daniel Vetter | 965e0c4 | 2013-03-27 00:44:57 +0100 | [diff] [blame] | 734 | switch (intel_crtc->config.pipe_bpp) { |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 735 | case 18: |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 736 | temp |= TRANS_MSA_6_BPC; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 737 | break; |
| 738 | case 24: |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 739 | temp |= TRANS_MSA_8_BPC; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 740 | break; |
| 741 | case 30: |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 742 | temp |= TRANS_MSA_10_BPC; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 743 | break; |
| 744 | case 36: |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 745 | temp |= TRANS_MSA_12_BPC; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 746 | break; |
| 747 | default: |
Daniel Vetter | 4e53c2e | 2013-03-27 00:44:58 +0100 | [diff] [blame] | 748 | BUG(); |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 749 | } |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 750 | I915_WRITE(TRANS_MSA_MISC(cpu_transcoder), temp); |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 751 | } |
| 752 | } |
| 753 | |
Damien Lespiau | 8228c25 | 2013-03-07 15:30:27 +0000 | [diff] [blame] | 754 | void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc) |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 755 | { |
| 756 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 757 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 758 | struct drm_encoder *encoder = &intel_encoder->base; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 759 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 760 | enum pipe pipe = intel_crtc->pipe; |
Daniel Vetter | 3b117c8 | 2013-04-17 20:15:07 +0200 | [diff] [blame] | 761 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 762 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 763 | int type = intel_encoder->type; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 764 | uint32_t temp; |
| 765 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 766 | /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */ |
| 767 | temp = TRANS_DDI_FUNC_ENABLE; |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 768 | temp |= TRANS_DDI_SELECT_PORT(port); |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 769 | |
Daniel Vetter | 965e0c4 | 2013-03-27 00:44:57 +0100 | [diff] [blame] | 770 | switch (intel_crtc->config.pipe_bpp) { |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 771 | case 18: |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 772 | temp |= TRANS_DDI_BPC_6; |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 773 | break; |
| 774 | case 24: |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 775 | temp |= TRANS_DDI_BPC_8; |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 776 | break; |
| 777 | case 30: |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 778 | temp |= TRANS_DDI_BPC_10; |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 779 | break; |
| 780 | case 36: |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 781 | temp |= TRANS_DDI_BPC_12; |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 782 | break; |
| 783 | default: |
Daniel Vetter | 4e53c2e | 2013-03-27 00:44:58 +0100 | [diff] [blame] | 784 | BUG(); |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 785 | } |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 786 | |
Ville Syrjälä | a666283 | 2013-09-10 17:03:41 +0300 | [diff] [blame] | 787 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_PVSYNC) |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 788 | temp |= TRANS_DDI_PVSYNC; |
Ville Syrjälä | a666283 | 2013-09-10 17:03:41 +0300 | [diff] [blame] | 789 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_PHSYNC) |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 790 | temp |= TRANS_DDI_PHSYNC; |
Paulo Zanoni | f63eb7c | 2012-08-08 14:15:28 -0300 | [diff] [blame] | 791 | |
Paulo Zanoni | e6f0bfc | 2012-10-23 18:30:04 -0200 | [diff] [blame] | 792 | if (cpu_transcoder == TRANSCODER_EDP) { |
| 793 | switch (pipe) { |
| 794 | case PIPE_A: |
Daniel Vetter | d6dd9eb | 2013-01-29 16:35:20 -0200 | [diff] [blame] | 795 | /* Can only use the always-on power well for eDP when |
| 796 | * not using the panel fitter, and when not using motion |
| 797 | * blur mitigation (which we don't support). */ |
Chris Wilson | fd4daa9 | 2013-08-27 17:04:17 +0100 | [diff] [blame] | 798 | if (intel_crtc->config.pch_pfit.enabled) |
Daniel Vetter | d6dd9eb | 2013-01-29 16:35:20 -0200 | [diff] [blame] | 799 | temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; |
| 800 | else |
| 801 | temp |= TRANS_DDI_EDP_INPUT_A_ON; |
Paulo Zanoni | e6f0bfc | 2012-10-23 18:30:04 -0200 | [diff] [blame] | 802 | break; |
| 803 | case PIPE_B: |
| 804 | temp |= TRANS_DDI_EDP_INPUT_B_ONOFF; |
| 805 | break; |
| 806 | case PIPE_C: |
| 807 | temp |= TRANS_DDI_EDP_INPUT_C_ONOFF; |
| 808 | break; |
| 809 | default: |
| 810 | BUG(); |
| 811 | break; |
| 812 | } |
| 813 | } |
| 814 | |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 815 | if (type == INTEL_OUTPUT_HDMI) { |
| 816 | struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 817 | |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 818 | if (intel_hdmi->has_hdmi_sink) |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 819 | temp |= TRANS_DDI_MODE_SELECT_HDMI; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 820 | else |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 821 | temp |= TRANS_DDI_MODE_SELECT_DVI; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 822 | |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 823 | } else if (type == INTEL_OUTPUT_ANALOG) { |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 824 | temp |= TRANS_DDI_MODE_SELECT_FDI; |
Daniel Vetter | 33d29b1 | 2013-02-13 18:04:45 +0100 | [diff] [blame] | 825 | temp |= (intel_crtc->config.fdi_lanes - 1) << 1; |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 826 | |
| 827 | } else if (type == INTEL_OUTPUT_DISPLAYPORT || |
| 828 | type == INTEL_OUTPUT_EDP) { |
| 829 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 830 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 831 | temp |= TRANS_DDI_MODE_SELECT_DP_SST; |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 832 | |
Daniel Vetter | 17aa6be | 2013-04-30 14:01:40 +0200 | [diff] [blame] | 833 | temp |= DDI_PORT_WIDTH(intel_dp->lane_count); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 834 | } else { |
Ville Syrjälä | 84f44ce | 2013-04-17 17:48:49 +0300 | [diff] [blame] | 835 | WARN(1, "Invalid encoder type %d for pipe %c\n", |
| 836 | intel_encoder->type, pipe_name(pipe)); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 837 | } |
| 838 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 839 | I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 840 | } |
| 841 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 842 | void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv, |
| 843 | enum transcoder cpu_transcoder) |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 844 | { |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 845 | uint32_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 846 | uint32_t val = I915_READ(reg); |
| 847 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 848 | val &= ~(TRANS_DDI_FUNC_ENABLE | TRANS_DDI_PORT_MASK); |
| 849 | val |= TRANS_DDI_PORT_NONE; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 850 | I915_WRITE(reg, val); |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 851 | } |
| 852 | |
Paulo Zanoni | bcbc889 | 2012-10-26 19:05:51 -0200 | [diff] [blame] | 853 | bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector) |
| 854 | { |
| 855 | struct drm_device *dev = intel_connector->base.dev; |
| 856 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 857 | struct intel_encoder *intel_encoder = intel_connector->encoder; |
| 858 | int type = intel_connector->base.connector_type; |
| 859 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
| 860 | enum pipe pipe = 0; |
| 861 | enum transcoder cpu_transcoder; |
| 862 | uint32_t tmp; |
| 863 | |
| 864 | if (!intel_encoder->get_hw_state(intel_encoder, &pipe)) |
| 865 | return false; |
| 866 | |
| 867 | if (port == PORT_A) |
| 868 | cpu_transcoder = TRANSCODER_EDP; |
| 869 | else |
Daniel Vetter | 1a240d4 | 2012-11-29 22:18:51 +0100 | [diff] [blame] | 870 | cpu_transcoder = (enum transcoder) pipe; |
Paulo Zanoni | bcbc889 | 2012-10-26 19:05:51 -0200 | [diff] [blame] | 871 | |
| 872 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
| 873 | |
| 874 | switch (tmp & TRANS_DDI_MODE_SELECT_MASK) { |
| 875 | case TRANS_DDI_MODE_SELECT_HDMI: |
| 876 | case TRANS_DDI_MODE_SELECT_DVI: |
| 877 | return (type == DRM_MODE_CONNECTOR_HDMIA); |
| 878 | |
| 879 | case TRANS_DDI_MODE_SELECT_DP_SST: |
| 880 | if (type == DRM_MODE_CONNECTOR_eDP) |
| 881 | return true; |
| 882 | case TRANS_DDI_MODE_SELECT_DP_MST: |
| 883 | return (type == DRM_MODE_CONNECTOR_DisplayPort); |
| 884 | |
| 885 | case TRANS_DDI_MODE_SELECT_FDI: |
| 886 | return (type == DRM_MODE_CONNECTOR_VGA); |
| 887 | |
| 888 | default: |
| 889 | return false; |
| 890 | } |
| 891 | } |
| 892 | |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 893 | bool intel_ddi_get_hw_state(struct intel_encoder *encoder, |
| 894 | enum pipe *pipe) |
| 895 | { |
| 896 | struct drm_device *dev = encoder->base.dev; |
| 897 | struct drm_i915_private *dev_priv = dev->dev_private; |
Paulo Zanoni | fe43d3f | 2012-10-15 15:51:39 -0300 | [diff] [blame] | 898 | enum port port = intel_ddi_get_encoder_port(encoder); |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 899 | u32 tmp; |
| 900 | int i; |
| 901 | |
Paulo Zanoni | fe43d3f | 2012-10-15 15:51:39 -0300 | [diff] [blame] | 902 | tmp = I915_READ(DDI_BUF_CTL(port)); |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 903 | |
| 904 | if (!(tmp & DDI_BUF_CTL_ENABLE)) |
| 905 | return false; |
| 906 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 907 | if (port == PORT_A) { |
| 908 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 909 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 910 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { |
| 911 | case TRANS_DDI_EDP_INPUT_A_ON: |
| 912 | case TRANS_DDI_EDP_INPUT_A_ONOFF: |
| 913 | *pipe = PIPE_A; |
| 914 | break; |
| 915 | case TRANS_DDI_EDP_INPUT_B_ONOFF: |
| 916 | *pipe = PIPE_B; |
| 917 | break; |
| 918 | case TRANS_DDI_EDP_INPUT_C_ONOFF: |
| 919 | *pipe = PIPE_C; |
| 920 | break; |
| 921 | } |
| 922 | |
| 923 | return true; |
| 924 | } else { |
| 925 | for (i = TRANSCODER_A; i <= TRANSCODER_C; i++) { |
| 926 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(i)); |
| 927 | |
| 928 | if ((tmp & TRANS_DDI_PORT_MASK) |
| 929 | == TRANS_DDI_SELECT_PORT(port)) { |
| 930 | *pipe = i; |
| 931 | return true; |
| 932 | } |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 933 | } |
| 934 | } |
| 935 | |
Ville Syrjälä | 84f44ce | 2013-04-17 17:48:49 +0300 | [diff] [blame] | 936 | DRM_DEBUG_KMS("No pipe for ddi port %c found\n", port_name(port)); |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 937 | |
Jesse Barnes | 22f9fe5 | 2013-04-02 10:03:55 -0700 | [diff] [blame] | 938 | return false; |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 939 | } |
| 940 | |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 941 | static uint32_t intel_ddi_get_crtc_pll(struct drm_i915_private *dev_priv, |
| 942 | enum pipe pipe) |
| 943 | { |
| 944 | uint32_t temp, ret; |
Damien Lespiau | a42f704 | 2013-03-25 15:16:14 +0000 | [diff] [blame] | 945 | enum port port = I915_MAX_PORTS; |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 946 | enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, |
| 947 | pipe); |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 948 | int i; |
| 949 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 950 | if (cpu_transcoder == TRANSCODER_EDP) { |
| 951 | port = PORT_A; |
| 952 | } else { |
| 953 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
| 954 | temp &= TRANS_DDI_PORT_MASK; |
| 955 | |
| 956 | for (i = PORT_B; i <= PORT_E; i++) |
| 957 | if (temp == TRANS_DDI_SELECT_PORT(i)) |
| 958 | port = i; |
| 959 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 960 | |
Damien Lespiau | a42f704 | 2013-03-25 15:16:14 +0000 | [diff] [blame] | 961 | if (port == I915_MAX_PORTS) { |
| 962 | WARN(1, "Pipe %c enabled on an unknown port\n", |
| 963 | pipe_name(pipe)); |
| 964 | ret = PORT_CLK_SEL_NONE; |
| 965 | } else { |
| 966 | ret = I915_READ(PORT_CLK_SEL(port)); |
| 967 | DRM_DEBUG_KMS("Pipe %c connected to port %c using clock " |
| 968 | "0x%08x\n", pipe_name(pipe), port_name(port), |
| 969 | ret); |
| 970 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 971 | |
| 972 | return ret; |
| 973 | } |
| 974 | |
| 975 | void intel_ddi_setup_hw_pll_state(struct drm_device *dev) |
| 976 | { |
| 977 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 978 | enum pipe pipe; |
| 979 | struct intel_crtc *intel_crtc; |
| 980 | |
| 981 | for_each_pipe(pipe) { |
| 982 | intel_crtc = |
| 983 | to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); |
| 984 | |
| 985 | if (!intel_crtc->active) |
| 986 | continue; |
| 987 | |
| 988 | intel_crtc->ddi_pll_sel = intel_ddi_get_crtc_pll(dev_priv, |
| 989 | pipe); |
| 990 | |
| 991 | switch (intel_crtc->ddi_pll_sel) { |
| 992 | case PORT_CLK_SEL_SPLL: |
| 993 | dev_priv->ddi_plls.spll_refcount++; |
| 994 | break; |
| 995 | case PORT_CLK_SEL_WRPLL1: |
| 996 | dev_priv->ddi_plls.wrpll1_refcount++; |
| 997 | break; |
| 998 | case PORT_CLK_SEL_WRPLL2: |
| 999 | dev_priv->ddi_plls.wrpll2_refcount++; |
| 1000 | break; |
| 1001 | } |
| 1002 | } |
| 1003 | } |
| 1004 | |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1005 | void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc) |
| 1006 | { |
| 1007 | struct drm_crtc *crtc = &intel_crtc->base; |
| 1008 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 1009 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
| 1010 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
Daniel Vetter | 3b117c8 | 2013-04-17 20:15:07 +0200 | [diff] [blame] | 1011 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1012 | |
Paulo Zanoni | bb523fc | 2012-10-23 18:29:56 -0200 | [diff] [blame] | 1013 | if (cpu_transcoder != TRANSCODER_EDP) |
| 1014 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), |
| 1015 | TRANS_CLK_SEL_PORT(port)); |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1016 | } |
| 1017 | |
| 1018 | void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc) |
| 1019 | { |
| 1020 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
Daniel Vetter | 3b117c8 | 2013-04-17 20:15:07 +0200 | [diff] [blame] | 1021 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1022 | |
Paulo Zanoni | bb523fc | 2012-10-23 18:29:56 -0200 | [diff] [blame] | 1023 | if (cpu_transcoder != TRANSCODER_EDP) |
| 1024 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), |
| 1025 | TRANS_CLK_SEL_DISABLED); |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1026 | } |
| 1027 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1028 | static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder) |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1029 | { |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1030 | struct drm_encoder *encoder = &intel_encoder->base; |
| 1031 | struct drm_crtc *crtc = encoder->crtc; |
| 1032 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1033 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 1034 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1035 | int type = intel_encoder->type; |
| 1036 | |
| 1037 | if (type == INTEL_OUTPUT_EDP) { |
| 1038 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 1039 | ironlake_edp_panel_vdd_on(intel_dp); |
| 1040 | ironlake_edp_panel_on(intel_dp); |
| 1041 | ironlake_edp_panel_vdd_off(intel_dp, true); |
| 1042 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1043 | |
| 1044 | WARN_ON(intel_crtc->ddi_pll_sel == PORT_CLK_SEL_NONE); |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1045 | I915_WRITE(PORT_CLK_SEL(port), intel_crtc->ddi_pll_sel); |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1046 | |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1047 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1048 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 1049 | |
| 1050 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); |
| 1051 | intel_dp_start_link_train(intel_dp); |
| 1052 | intel_dp_complete_link_train(intel_dp); |
Imre Deak | 3ab9c63 | 2013-05-03 12:57:41 +0300 | [diff] [blame] | 1053 | if (port != PORT_A) |
| 1054 | intel_dp_stop_link_train(intel_dp); |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1055 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1056 | } |
| 1057 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1058 | static void intel_ddi_post_disable(struct intel_encoder *intel_encoder) |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1059 | { |
| 1060 | struct drm_encoder *encoder = &intel_encoder->base; |
| 1061 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; |
| 1062 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1063 | int type = intel_encoder->type; |
Paulo Zanoni | 2886e93 | 2012-10-05 12:06:00 -0300 | [diff] [blame] | 1064 | uint32_t val; |
Paulo Zanoni | a836bdf | 2012-10-15 15:51:32 -0300 | [diff] [blame] | 1065 | bool wait = false; |
Paulo Zanoni | 2886e93 | 2012-10-05 12:06:00 -0300 | [diff] [blame] | 1066 | |
| 1067 | val = I915_READ(DDI_BUF_CTL(port)); |
| 1068 | if (val & DDI_BUF_CTL_ENABLE) { |
| 1069 | val &= ~DDI_BUF_CTL_ENABLE; |
| 1070 | I915_WRITE(DDI_BUF_CTL(port), val); |
Paulo Zanoni | a836bdf | 2012-10-15 15:51:32 -0300 | [diff] [blame] | 1071 | wait = true; |
Paulo Zanoni | 2886e93 | 2012-10-05 12:06:00 -0300 | [diff] [blame] | 1072 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1073 | |
Paulo Zanoni | a836bdf | 2012-10-15 15:51:32 -0300 | [diff] [blame] | 1074 | val = I915_READ(DP_TP_CTL(port)); |
| 1075 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); |
| 1076 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; |
| 1077 | I915_WRITE(DP_TP_CTL(port), val); |
| 1078 | |
| 1079 | if (wait) |
| 1080 | intel_wait_ddi_buf_idle(dev_priv, port); |
| 1081 | |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1082 | if (type == INTEL_OUTPUT_EDP) { |
| 1083 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 1084 | ironlake_edp_panel_vdd_on(intel_dp); |
| 1085 | ironlake_edp_panel_off(intel_dp); |
| 1086 | } |
| 1087 | |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1088 | I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE); |
| 1089 | } |
| 1090 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1091 | static void intel_enable_ddi(struct intel_encoder *intel_encoder) |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 1092 | { |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1093 | struct drm_encoder *encoder = &intel_encoder->base; |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1094 | struct drm_crtc *crtc = encoder->crtc; |
| 1095 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 1096 | int pipe = intel_crtc->pipe; |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1097 | struct drm_device *dev = encoder->dev; |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 1098 | struct drm_i915_private *dev_priv = dev->dev_private; |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1099 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
| 1100 | int type = intel_encoder->type; |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1101 | uint32_t tmp; |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 1102 | |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1103 | if (type == INTEL_OUTPUT_HDMI) { |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 1104 | struct intel_digital_port *intel_dig_port = |
| 1105 | enc_to_dig_port(encoder); |
| 1106 | |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1107 | /* In HDMI/DVI mode, the port width, and swing/emphasis values |
| 1108 | * are ignored so nothing special needs to be done besides |
| 1109 | * enabling the port. |
| 1110 | */ |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 1111 | I915_WRITE(DDI_BUF_CTL(port), |
Stéphane Marchesin | bcf53de | 2013-07-12 13:54:41 -0700 | [diff] [blame] | 1112 | intel_dig_port->saved_port_bits | |
| 1113 | DDI_BUF_CTL_ENABLE); |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1114 | } else if (type == INTEL_OUTPUT_EDP) { |
| 1115 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 1116 | |
Imre Deak | 3ab9c63 | 2013-05-03 12:57:41 +0300 | [diff] [blame] | 1117 | if (port == PORT_A) |
| 1118 | intel_dp_stop_link_train(intel_dp); |
| 1119 | |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1120 | ironlake_edp_backlight_on(intel_dp); |
Rodrigo Vivi | 4906557 | 2013-07-11 18:45:05 -0300 | [diff] [blame] | 1121 | intel_edp_psr_enable(intel_dp); |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1122 | } |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1123 | |
Paulo Zanoni | c77bf56 | 2013-05-03 12:15:40 -0300 | [diff] [blame] | 1124 | if (intel_crtc->eld_vld && type != INTEL_OUTPUT_EDP) { |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1125 | tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); |
| 1126 | tmp |= ((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4)); |
| 1127 | I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp); |
| 1128 | } |
Daniel Vetter | 5ab432e | 2012-06-30 08:59:56 +0200 | [diff] [blame] | 1129 | } |
| 1130 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1131 | static void intel_disable_ddi(struct intel_encoder *intel_encoder) |
Daniel Vetter | 5ab432e | 2012-06-30 08:59:56 +0200 | [diff] [blame] | 1132 | { |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1133 | struct drm_encoder *encoder = &intel_encoder->base; |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1134 | struct drm_crtc *crtc = encoder->crtc; |
| 1135 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 1136 | int pipe = intel_crtc->pipe; |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1137 | int type = intel_encoder->type; |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1138 | struct drm_device *dev = encoder->dev; |
| 1139 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1140 | uint32_t tmp; |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1141 | |
Paulo Zanoni | c77bf56 | 2013-05-03 12:15:40 -0300 | [diff] [blame] | 1142 | if (intel_crtc->eld_vld && type != INTEL_OUTPUT_EDP) { |
| 1143 | tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); |
| 1144 | tmp &= ~((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << |
| 1145 | (pipe * 4)); |
| 1146 | I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp); |
| 1147 | } |
Paulo Zanoni | 2831d842 | 2013-03-06 20:03:09 -0300 | [diff] [blame] | 1148 | |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1149 | if (type == INTEL_OUTPUT_EDP) { |
| 1150 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 1151 | |
Rodrigo Vivi | 4906557 | 2013-07-11 18:45:05 -0300 | [diff] [blame] | 1152 | intel_edp_psr_disable(intel_dp); |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1153 | ironlake_edp_backlight_off(intel_dp); |
| 1154 | } |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 1155 | } |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1156 | |
Paulo Zanoni | b8fc2f6 | 2012-10-23 18:30:05 -0200 | [diff] [blame] | 1157 | int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv) |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1158 | { |
Paulo Zanoni | a400664 | 2013-08-06 18:57:11 -0300 | [diff] [blame] | 1159 | uint32_t lcpll = I915_READ(LCPLL_CTL); |
| 1160 | |
| 1161 | if (lcpll & LCPLL_CD_SOURCE_FCLK) |
| 1162 | return 800000; |
| 1163 | else if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT) |
Paulo Zanoni | b2b877f | 2013-05-03 17:23:42 -0300 | [diff] [blame] | 1164 | return 450000; |
Paulo Zanoni | a400664 | 2013-08-06 18:57:11 -0300 | [diff] [blame] | 1165 | else if ((lcpll & LCPLL_CLK_FREQ_MASK) == LCPLL_CLK_FREQ_450) |
Paulo Zanoni | b2b877f | 2013-05-03 17:23:42 -0300 | [diff] [blame] | 1166 | return 450000; |
Paulo Zanoni | d567b07 | 2012-11-20 13:27:43 -0200 | [diff] [blame] | 1167 | else if (IS_ULT(dev_priv->dev)) |
Paulo Zanoni | b2b877f | 2013-05-03 17:23:42 -0300 | [diff] [blame] | 1168 | return 337500; |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1169 | else |
Paulo Zanoni | b2b877f | 2013-05-03 17:23:42 -0300 | [diff] [blame] | 1170 | return 540000; |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1171 | } |
| 1172 | |
| 1173 | void intel_ddi_pll_init(struct drm_device *dev) |
| 1174 | { |
| 1175 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1176 | uint32_t val = I915_READ(LCPLL_CTL); |
| 1177 | |
| 1178 | /* The LCPLL register should be turned on by the BIOS. For now let's |
| 1179 | * just check its state and print errors in case something is wrong. |
| 1180 | * Don't even try to turn it on. |
| 1181 | */ |
| 1182 | |
Paulo Zanoni | b2b877f | 2013-05-03 17:23:42 -0300 | [diff] [blame] | 1183 | DRM_DEBUG_KMS("CDCLK running at %dKHz\n", |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1184 | intel_ddi_get_cdclk_freq(dev_priv)); |
| 1185 | |
| 1186 | if (val & LCPLL_CD_SOURCE_FCLK) |
| 1187 | DRM_ERROR("CDCLK source is not LCPLL\n"); |
| 1188 | |
| 1189 | if (val & LCPLL_PLL_DISABLE) |
| 1190 | DRM_ERROR("LCPLL is disabled\n"); |
| 1191 | } |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1192 | |
| 1193 | void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder) |
| 1194 | { |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 1195 | struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
| 1196 | struct intel_dp *intel_dp = &intel_dig_port->dp; |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1197 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 1198 | enum port port = intel_dig_port->port; |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1199 | uint32_t val; |
Syam Sidhardhan | f3e227d | 2013-02-25 04:05:38 +0530 | [diff] [blame] | 1200 | bool wait = false; |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1201 | |
| 1202 | if (I915_READ(DP_TP_CTL(port)) & DP_TP_CTL_ENABLE) { |
| 1203 | val = I915_READ(DDI_BUF_CTL(port)); |
| 1204 | if (val & DDI_BUF_CTL_ENABLE) { |
| 1205 | val &= ~DDI_BUF_CTL_ENABLE; |
| 1206 | I915_WRITE(DDI_BUF_CTL(port), val); |
| 1207 | wait = true; |
| 1208 | } |
| 1209 | |
| 1210 | val = I915_READ(DP_TP_CTL(port)); |
| 1211 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); |
| 1212 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; |
| 1213 | I915_WRITE(DP_TP_CTL(port), val); |
| 1214 | POSTING_READ(DP_TP_CTL(port)); |
| 1215 | |
| 1216 | if (wait) |
| 1217 | intel_wait_ddi_buf_idle(dev_priv, port); |
| 1218 | } |
| 1219 | |
| 1220 | val = DP_TP_CTL_ENABLE | DP_TP_CTL_MODE_SST | |
| 1221 | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE; |
Jani Nikula | 6aba5b6 | 2013-10-04 15:08:10 +0300 | [diff] [blame] | 1222 | if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1223 | val |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; |
| 1224 | I915_WRITE(DP_TP_CTL(port), val); |
| 1225 | POSTING_READ(DP_TP_CTL(port)); |
| 1226 | |
| 1227 | intel_dp->DP |= DDI_BUF_CTL_ENABLE; |
| 1228 | I915_WRITE(DDI_BUF_CTL(port), intel_dp->DP); |
| 1229 | POSTING_READ(DDI_BUF_CTL(port)); |
| 1230 | |
| 1231 | udelay(600); |
| 1232 | } |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1233 | |
Paulo Zanoni | 1ad960f | 2012-11-01 21:05:05 -0200 | [diff] [blame] | 1234 | void intel_ddi_fdi_disable(struct drm_crtc *crtc) |
| 1235 | { |
| 1236 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 1237 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
| 1238 | uint32_t val; |
| 1239 | |
| 1240 | intel_ddi_post_disable(intel_encoder); |
| 1241 | |
| 1242 | val = I915_READ(_FDI_RXA_CTL); |
| 1243 | val &= ~FDI_RX_ENABLE; |
| 1244 | I915_WRITE(_FDI_RXA_CTL, val); |
| 1245 | |
| 1246 | val = I915_READ(_FDI_RXA_MISC); |
| 1247 | val &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
| 1248 | val |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); |
| 1249 | I915_WRITE(_FDI_RXA_MISC, val); |
| 1250 | |
| 1251 | val = I915_READ(_FDI_RXA_CTL); |
| 1252 | val &= ~FDI_PCDCLK; |
| 1253 | I915_WRITE(_FDI_RXA_CTL, val); |
| 1254 | |
| 1255 | val = I915_READ(_FDI_RXA_CTL); |
| 1256 | val &= ~FDI_RX_PLL_ENABLE; |
| 1257 | I915_WRITE(_FDI_RXA_CTL, val); |
| 1258 | } |
| 1259 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1260 | static void intel_ddi_hot_plug(struct intel_encoder *intel_encoder) |
| 1261 | { |
| 1262 | struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base); |
| 1263 | int type = intel_encoder->type; |
| 1264 | |
| 1265 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) |
| 1266 | intel_dp_check_link_status(intel_dp); |
| 1267 | } |
| 1268 | |
Ville Syrjälä | 6801c18 | 2013-09-24 14:24:05 +0300 | [diff] [blame] | 1269 | void intel_ddi_get_config(struct intel_encoder *encoder, |
| 1270 | struct intel_crtc_config *pipe_config) |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 1271 | { |
| 1272 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; |
| 1273 | struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); |
| 1274 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
| 1275 | u32 temp, flags = 0; |
| 1276 | |
| 1277 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
| 1278 | if (temp & TRANS_DDI_PHSYNC) |
| 1279 | flags |= DRM_MODE_FLAG_PHSYNC; |
| 1280 | else |
| 1281 | flags |= DRM_MODE_FLAG_NHSYNC; |
| 1282 | if (temp & TRANS_DDI_PVSYNC) |
| 1283 | flags |= DRM_MODE_FLAG_PVSYNC; |
| 1284 | else |
| 1285 | flags |= DRM_MODE_FLAG_NVSYNC; |
| 1286 | |
| 1287 | pipe_config->adjusted_mode.flags |= flags; |
Ville Syrjälä | 42571ae | 2013-09-06 23:29:00 +0300 | [diff] [blame] | 1288 | |
| 1289 | switch (temp & TRANS_DDI_BPC_MASK) { |
| 1290 | case TRANS_DDI_BPC_6: |
| 1291 | pipe_config->pipe_bpp = 18; |
| 1292 | break; |
| 1293 | case TRANS_DDI_BPC_8: |
| 1294 | pipe_config->pipe_bpp = 24; |
| 1295 | break; |
| 1296 | case TRANS_DDI_BPC_10: |
| 1297 | pipe_config->pipe_bpp = 30; |
| 1298 | break; |
| 1299 | case TRANS_DDI_BPC_12: |
| 1300 | pipe_config->pipe_bpp = 36; |
| 1301 | break; |
| 1302 | default: |
| 1303 | break; |
| 1304 | } |
Ville Syrjälä | eb14cb7 | 2013-09-10 17:02:54 +0300 | [diff] [blame] | 1305 | |
| 1306 | switch (temp & TRANS_DDI_MODE_SELECT_MASK) { |
| 1307 | case TRANS_DDI_MODE_SELECT_HDMI: |
| 1308 | case TRANS_DDI_MODE_SELECT_DVI: |
| 1309 | case TRANS_DDI_MODE_SELECT_FDI: |
| 1310 | break; |
| 1311 | case TRANS_DDI_MODE_SELECT_DP_SST: |
| 1312 | case TRANS_DDI_MODE_SELECT_DP_MST: |
| 1313 | pipe_config->has_dp_encoder = true; |
| 1314 | intel_dp_get_m_n(intel_crtc, pipe_config); |
| 1315 | break; |
| 1316 | default: |
| 1317 | break; |
| 1318 | } |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 1319 | } |
| 1320 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1321 | static void intel_ddi_destroy(struct drm_encoder *encoder) |
| 1322 | { |
| 1323 | /* HDMI has nothing special to destroy, so we can go with this. */ |
| 1324 | intel_dp_encoder_destroy(encoder); |
| 1325 | } |
| 1326 | |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1327 | static bool intel_ddi_compute_config(struct intel_encoder *encoder, |
| 1328 | struct intel_crtc_config *pipe_config) |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1329 | { |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1330 | int type = encoder->type; |
Daniel Vetter | eccb140 | 2013-05-22 00:50:22 +0200 | [diff] [blame] | 1331 | int port = intel_ddi_get_encoder_port(encoder); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1332 | |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1333 | WARN(type == INTEL_OUTPUT_UNKNOWN, "compute_config() on unknown output!\n"); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1334 | |
Daniel Vetter | eccb140 | 2013-05-22 00:50:22 +0200 | [diff] [blame] | 1335 | if (port == PORT_A) |
| 1336 | pipe_config->cpu_transcoder = TRANSCODER_EDP; |
| 1337 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1338 | if (type == INTEL_OUTPUT_HDMI) |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1339 | return intel_hdmi_compute_config(encoder, pipe_config); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1340 | else |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1341 | return intel_dp_compute_config(encoder, pipe_config); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1342 | } |
| 1343 | |
| 1344 | static const struct drm_encoder_funcs intel_ddi_funcs = { |
| 1345 | .destroy = intel_ddi_destroy, |
| 1346 | }; |
| 1347 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1348 | void intel_ddi_init(struct drm_device *dev, enum port port) |
| 1349 | { |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 1350 | struct drm_i915_private *dev_priv = dev->dev_private; |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1351 | struct intel_digital_port *intel_dig_port; |
| 1352 | struct intel_encoder *intel_encoder; |
| 1353 | struct drm_encoder *encoder; |
| 1354 | struct intel_connector *hdmi_connector = NULL; |
| 1355 | struct intel_connector *dp_connector = NULL; |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 1356 | bool init_hdmi, init_dp; |
| 1357 | |
| 1358 | init_hdmi = (dev_priv->vbt.ddi_port_info[port].supports_dvi || |
| 1359 | dev_priv->vbt.ddi_port_info[port].supports_hdmi); |
| 1360 | init_dp = dev_priv->vbt.ddi_port_info[port].supports_dp; |
| 1361 | if (!init_dp && !init_hdmi) { |
| 1362 | DRM_DEBUG_KMS("VBT says port %c is not DVI/HDMI/DP compatible\n", |
| 1363 | port_name(port)); |
| 1364 | init_hdmi = true; |
| 1365 | init_dp = true; |
| 1366 | } |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1367 | |
Daniel Vetter | b14c567 | 2013-09-19 12:18:32 +0200 | [diff] [blame] | 1368 | intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1369 | if (!intel_dig_port) |
| 1370 | return; |
| 1371 | |
Daniel Vetter | b14c567 | 2013-09-19 12:18:32 +0200 | [diff] [blame] | 1372 | dp_connector = kzalloc(sizeof(*dp_connector), GFP_KERNEL); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1373 | if (!dp_connector) { |
| 1374 | kfree(intel_dig_port); |
| 1375 | return; |
| 1376 | } |
| 1377 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1378 | intel_encoder = &intel_dig_port->base; |
| 1379 | encoder = &intel_encoder->base; |
| 1380 | |
| 1381 | drm_encoder_init(dev, encoder, &intel_ddi_funcs, |
| 1382 | DRM_MODE_ENCODER_TMDS); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1383 | |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1384 | intel_encoder->compute_config = intel_ddi_compute_config; |
Daniel Vetter | c7d8be3 | 2013-07-21 21:37:07 +0200 | [diff] [blame] | 1385 | intel_encoder->mode_set = intel_ddi_mode_set; |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1386 | intel_encoder->enable = intel_enable_ddi; |
| 1387 | intel_encoder->pre_enable = intel_ddi_pre_enable; |
| 1388 | intel_encoder->disable = intel_disable_ddi; |
| 1389 | intel_encoder->post_disable = intel_ddi_post_disable; |
| 1390 | intel_encoder->get_hw_state = intel_ddi_get_hw_state; |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 1391 | intel_encoder->get_config = intel_ddi_get_config; |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1392 | |
| 1393 | intel_dig_port->port = port; |
Stéphane Marchesin | bcf53de | 2013-07-12 13:54:41 -0700 | [diff] [blame] | 1394 | intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) & |
| 1395 | (DDI_BUF_PORT_REVERSAL | |
| 1396 | DDI_A_4_LANES); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1397 | intel_dig_port->dp.output_reg = DDI_BUF_CTL(port); |
| 1398 | |
| 1399 | intel_encoder->type = INTEL_OUTPUT_UNKNOWN; |
| 1400 | intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); |
| 1401 | intel_encoder->cloneable = false; |
| 1402 | intel_encoder->hot_plug = intel_ddi_hot_plug; |
| 1403 | |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 1404 | if (init_dp && !intel_dp_init_connector(intel_dig_port, dp_connector)) { |
Paulo Zanoni | 15b1d17 | 2013-06-12 17:27:27 -0300 | [diff] [blame] | 1405 | drm_encoder_cleanup(encoder); |
| 1406 | kfree(intel_dig_port); |
Paulo Zanoni | b2f246a | 2013-06-12 17:27:26 -0300 | [diff] [blame] | 1407 | kfree(dp_connector); |
Paulo Zanoni | 16c2553 | 2013-06-12 17:27:25 -0300 | [diff] [blame] | 1408 | return; |
Paulo Zanoni | b2f246a | 2013-06-12 17:27:26 -0300 | [diff] [blame] | 1409 | } |
Daniel Vetter | 21a8e6a | 2013-04-10 23:28:35 +0200 | [diff] [blame] | 1410 | |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 1411 | /* In theory we don't need the encoder->type check, but leave it just in |
| 1412 | * case we have some really bad VBTs... */ |
| 1413 | if (intel_encoder->type != INTEL_OUTPUT_EDP && init_hdmi) { |
Daniel Vetter | b14c567 | 2013-09-19 12:18:32 +0200 | [diff] [blame] | 1414 | hdmi_connector = kzalloc(sizeof(*hdmi_connector), |
Daniel Vetter | 21a8e6a | 2013-04-10 23:28:35 +0200 | [diff] [blame] | 1415 | GFP_KERNEL); |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 1416 | if (!hdmi_connector) |
Daniel Vetter | 21a8e6a | 2013-04-10 23:28:35 +0200 | [diff] [blame] | 1417 | return; |
Daniel Vetter | 21a8e6a | 2013-04-10 23:28:35 +0200 | [diff] [blame] | 1418 | |
| 1419 | intel_dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port); |
| 1420 | intel_hdmi_init_connector(intel_dig_port, hdmi_connector); |
| 1421 | } |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1422 | } |