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 | |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 31 | struct ddi_buf_trans { |
| 32 | u32 trans1; /* balance leg enable, de-emph level */ |
| 33 | u32 trans2; /* vref sel, vswing */ |
| 34 | }; |
| 35 | |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 36 | /* HDMI/DVI modes ignore everything but the last 2 items. So we share |
| 37 | * them for both DP and FDI transports, allowing those ports to |
| 38 | * automatically adapt to HDMI connections as well |
| 39 | */ |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 40 | static const struct ddi_buf_trans hsw_ddi_translations_dp[] = { |
| 41 | { 0x00FFFFFF, 0x0006000E }, |
| 42 | { 0x00D75FFF, 0x0005000A }, |
| 43 | { 0x00C30FFF, 0x00040006 }, |
| 44 | { 0x80AAAFFF, 0x000B0000 }, |
| 45 | { 0x00FFFFFF, 0x0005000A }, |
| 46 | { 0x00D75FFF, 0x000C0004 }, |
| 47 | { 0x80C30FFF, 0x000B0000 }, |
| 48 | { 0x00FFFFFF, 0x00040006 }, |
| 49 | { 0x80D75FFF, 0x000B0000 }, |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 50 | }; |
| 51 | |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 52 | static const struct ddi_buf_trans hsw_ddi_translations_fdi[] = { |
| 53 | { 0x00FFFFFF, 0x0007000E }, |
| 54 | { 0x00D75FFF, 0x000F000A }, |
| 55 | { 0x00C30FFF, 0x00060006 }, |
| 56 | { 0x00AAAFFF, 0x001E0000 }, |
| 57 | { 0x00FFFFFF, 0x000F000A }, |
| 58 | { 0x00D75FFF, 0x00160004 }, |
| 59 | { 0x00C30FFF, 0x001E0000 }, |
| 60 | { 0x00FFFFFF, 0x00060006 }, |
| 61 | { 0x00D75FFF, 0x001E0000 }, |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 62 | }; |
| 63 | |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 64 | static const struct ddi_buf_trans hsw_ddi_translations_hdmi[] = { |
| 65 | /* Idx NT mV d T mV d db */ |
| 66 | { 0x00FFFFFF, 0x0006000E }, /* 0: 400 400 0 */ |
| 67 | { 0x00E79FFF, 0x000E000C }, /* 1: 400 500 2 */ |
| 68 | { 0x00D75FFF, 0x0005000A }, /* 2: 400 600 3.5 */ |
| 69 | { 0x00FFFFFF, 0x0005000A }, /* 3: 600 600 0 */ |
| 70 | { 0x00E79FFF, 0x001D0007 }, /* 4: 600 750 2 */ |
| 71 | { 0x00D75FFF, 0x000C0004 }, /* 5: 600 900 3.5 */ |
| 72 | { 0x00FFFFFF, 0x00040006 }, /* 6: 800 800 0 */ |
| 73 | { 0x80E79FFF, 0x00030002 }, /* 7: 800 1000 2 */ |
| 74 | { 0x00FFFFFF, 0x00140005 }, /* 8: 850 850 0 */ |
| 75 | { 0x00FFFFFF, 0x000C0004 }, /* 9: 900 900 0 */ |
| 76 | { 0x00FFFFFF, 0x001C0003 }, /* 10: 950 950 0 */ |
| 77 | { 0x80FFFFFF, 0x00030002 }, /* 11: 1000 1000 0 */ |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 78 | }; |
| 79 | |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 80 | static const struct ddi_buf_trans bdw_ddi_translations_edp[] = { |
| 81 | { 0x00FFFFFF, 0x00000012 }, |
| 82 | { 0x00EBAFFF, 0x00020011 }, |
| 83 | { 0x00C71FFF, 0x0006000F }, |
| 84 | { 0x00AAAFFF, 0x000E000A }, |
| 85 | { 0x00FFFFFF, 0x00020011 }, |
| 86 | { 0x00DB6FFF, 0x0005000F }, |
| 87 | { 0x00BEEFFF, 0x000A000C }, |
| 88 | { 0x00FFFFFF, 0x0005000F }, |
| 89 | { 0x00DB6FFF, 0x000A000C }, |
Paulo Zanoni | 300644c | 2013-11-02 21:07:42 -0700 | [diff] [blame] | 90 | }; |
| 91 | |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 92 | static const struct ddi_buf_trans bdw_ddi_translations_dp[] = { |
| 93 | { 0x00FFFFFF, 0x0007000E }, |
| 94 | { 0x00D75FFF, 0x000E000A }, |
| 95 | { 0x00BEFFFF, 0x00140006 }, |
| 96 | { 0x80B2CFFF, 0x001B0002 }, |
| 97 | { 0x00FFFFFF, 0x000E000A }, |
| 98 | { 0x00D75FFF, 0x00180004 }, |
| 99 | { 0x80CB2FFF, 0x001B0002 }, |
| 100 | { 0x00F7DFFF, 0x00180004 }, |
| 101 | { 0x80D75FFF, 0x001B0002 }, |
Art Runyan | e58623c | 2013-11-02 21:07:41 -0700 | [diff] [blame] | 102 | }; |
| 103 | |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 104 | static const struct ddi_buf_trans bdw_ddi_translations_fdi[] = { |
| 105 | { 0x00FFFFFF, 0x0001000E }, |
| 106 | { 0x00D75FFF, 0x0004000A }, |
| 107 | { 0x00C30FFF, 0x00070006 }, |
| 108 | { 0x00AAAFFF, 0x000C0000 }, |
| 109 | { 0x00FFFFFF, 0x0004000A }, |
| 110 | { 0x00D75FFF, 0x00090004 }, |
| 111 | { 0x00C30FFF, 0x000C0000 }, |
| 112 | { 0x00FFFFFF, 0x00070006 }, |
| 113 | { 0x00D75FFF, 0x000C0000 }, |
Art Runyan | e58623c | 2013-11-02 21:07:41 -0700 | [diff] [blame] | 114 | }; |
| 115 | |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 116 | static const struct ddi_buf_trans bdw_ddi_translations_hdmi[] = { |
| 117 | /* Idx NT mV d T mV df db */ |
| 118 | { 0x00FFFFFF, 0x0007000E }, /* 0: 400 400 0 */ |
| 119 | { 0x00D75FFF, 0x000E000A }, /* 1: 400 600 3.5 */ |
| 120 | { 0x00BEFFFF, 0x00140006 }, /* 2: 400 800 6 */ |
| 121 | { 0x00FFFFFF, 0x0009000D }, /* 3: 450 450 0 */ |
| 122 | { 0x00FFFFFF, 0x000E000A }, /* 4: 600 600 0 */ |
| 123 | { 0x00D7FFFF, 0x00140006 }, /* 5: 600 800 2.5 */ |
| 124 | { 0x80CB2FFF, 0x001B0002 }, /* 6: 600 1000 4.5 */ |
| 125 | { 0x00FFFFFF, 0x00140006 }, /* 7: 800 800 0 */ |
| 126 | { 0x80E79FFF, 0x001B0002 }, /* 8: 800 1000 2 */ |
| 127 | { 0x80FFFFFF, 0x001B0002 }, /* 9: 1000 1000 0 */ |
Damien Lespiau | a26aa8b | 2014-08-01 11:07:55 +0100 | [diff] [blame] | 128 | }; |
| 129 | |
Jani Nikula | 20f4dbe | 2013-08-30 19:40:28 +0300 | [diff] [blame] | 130 | enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 131 | { |
Paulo Zanoni | 0bdee30 | 2012-10-15 15:51:38 -0300 | [diff] [blame] | 132 | struct drm_encoder *encoder = &intel_encoder->base; |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 133 | int type = intel_encoder->type; |
| 134 | |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 135 | if (type == INTEL_OUTPUT_DP_MST) { |
| 136 | struct intel_digital_port *intel_dig_port = enc_to_mst(encoder)->primary; |
| 137 | return intel_dig_port->port; |
| 138 | } else if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP || |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 139 | type == INTEL_OUTPUT_HDMI || type == INTEL_OUTPUT_UNKNOWN) { |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 140 | struct intel_digital_port *intel_dig_port = |
| 141 | enc_to_dig_port(encoder); |
| 142 | return intel_dig_port->port; |
Paulo Zanoni | 0bdee30 | 2012-10-15 15:51:38 -0300 | [diff] [blame] | 143 | |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 144 | } else if (type == INTEL_OUTPUT_ANALOG) { |
| 145 | return PORT_E; |
Paulo Zanoni | 0bdee30 | 2012-10-15 15:51:38 -0300 | [diff] [blame] | 146 | |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 147 | } else { |
| 148 | DRM_ERROR("Invalid DDI encoder type %d\n", type); |
| 149 | BUG(); |
| 150 | } |
| 151 | } |
| 152 | |
Art Runyan | e58623c | 2013-11-02 21:07:41 -0700 | [diff] [blame] | 153 | /* |
| 154 | * Starting with Haswell, DDI port buffers must be programmed with correct |
| 155 | * values in advance. The buffer values are different for FDI and DP modes, |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 156 | * but the HDMI/DVI fields are shared among those. So we program the DDI |
| 157 | * in either FDI or DP modes only, as HDMI connections will work with both |
| 158 | * of those |
| 159 | */ |
Paulo Zanoni | ad8d270 | 2013-08-05 17:25:56 -0300 | [diff] [blame] | 160 | 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] | 161 | { |
| 162 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 163 | u32 reg; |
Damien Lespiau | ce4dd49 | 2014-08-01 11:07:54 +0100 | [diff] [blame] | 164 | int i, n_hdmi_entries, hdmi_800mV_0dB; |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 165 | int hdmi_level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift; |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 166 | const struct ddi_buf_trans *ddi_translations_fdi; |
| 167 | const struct ddi_buf_trans *ddi_translations_dp; |
| 168 | const struct ddi_buf_trans *ddi_translations_edp; |
| 169 | const struct ddi_buf_trans *ddi_translations_hdmi; |
| 170 | const struct ddi_buf_trans *ddi_translations; |
Art Runyan | e58623c | 2013-11-02 21:07:41 -0700 | [diff] [blame] | 171 | |
| 172 | if (IS_BROADWELL(dev)) { |
| 173 | ddi_translations_fdi = bdw_ddi_translations_fdi; |
| 174 | ddi_translations_dp = bdw_ddi_translations_dp; |
Paulo Zanoni | 300644c | 2013-11-02 21:07:42 -0700 | [diff] [blame] | 175 | ddi_translations_edp = bdw_ddi_translations_edp; |
Damien Lespiau | a26aa8b | 2014-08-01 11:07:55 +0100 | [diff] [blame] | 176 | ddi_translations_hdmi = bdw_ddi_translations_hdmi; |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 177 | n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); |
Damien Lespiau | a26aa8b | 2014-08-01 11:07:55 +0100 | [diff] [blame] | 178 | hdmi_800mV_0dB = 7; |
Art Runyan | e58623c | 2013-11-02 21:07:41 -0700 | [diff] [blame] | 179 | } else if (IS_HASWELL(dev)) { |
| 180 | ddi_translations_fdi = hsw_ddi_translations_fdi; |
| 181 | ddi_translations_dp = hsw_ddi_translations_dp; |
Paulo Zanoni | 300644c | 2013-11-02 21:07:42 -0700 | [diff] [blame] | 182 | ddi_translations_edp = hsw_ddi_translations_dp; |
Damien Lespiau | a26aa8b | 2014-08-01 11:07:55 +0100 | [diff] [blame] | 183 | ddi_translations_hdmi = hsw_ddi_translations_hdmi; |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 184 | n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi); |
Damien Lespiau | ce4dd49 | 2014-08-01 11:07:54 +0100 | [diff] [blame] | 185 | hdmi_800mV_0dB = 6; |
Art Runyan | e58623c | 2013-11-02 21:07:41 -0700 | [diff] [blame] | 186 | } else { |
| 187 | WARN(1, "ddi translation table missing\n"); |
Paulo Zanoni | 300644c | 2013-11-02 21:07:42 -0700 | [diff] [blame] | 188 | ddi_translations_edp = bdw_ddi_translations_dp; |
Art Runyan | e58623c | 2013-11-02 21:07:41 -0700 | [diff] [blame] | 189 | ddi_translations_fdi = bdw_ddi_translations_fdi; |
| 190 | ddi_translations_dp = bdw_ddi_translations_dp; |
Damien Lespiau | a26aa8b | 2014-08-01 11:07:55 +0100 | [diff] [blame] | 191 | ddi_translations_hdmi = bdw_ddi_translations_hdmi; |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 192 | n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); |
Damien Lespiau | a26aa8b | 2014-08-01 11:07:55 +0100 | [diff] [blame] | 193 | hdmi_800mV_0dB = 7; |
Art Runyan | e58623c | 2013-11-02 21:07:41 -0700 | [diff] [blame] | 194 | } |
| 195 | |
Paulo Zanoni | 300644c | 2013-11-02 21:07:42 -0700 | [diff] [blame] | 196 | switch (port) { |
| 197 | case PORT_A: |
| 198 | ddi_translations = ddi_translations_edp; |
| 199 | break; |
| 200 | case PORT_B: |
| 201 | case PORT_C: |
Paulo Zanoni | 300644c | 2013-11-02 21:07:42 -0700 | [diff] [blame] | 202 | ddi_translations = ddi_translations_dp; |
| 203 | break; |
Paulo Zanoni | 77d8d00 | 2013-11-02 21:07:45 -0700 | [diff] [blame] | 204 | case PORT_D: |
Ville Syrjälä | 5d8a775 | 2013-11-01 18:22:39 +0200 | [diff] [blame] | 205 | if (intel_dp_is_edp(dev, PORT_D)) |
Paulo Zanoni | 77d8d00 | 2013-11-02 21:07:45 -0700 | [diff] [blame] | 206 | ddi_translations = ddi_translations_edp; |
| 207 | else |
| 208 | ddi_translations = ddi_translations_dp; |
| 209 | break; |
Paulo Zanoni | 300644c | 2013-11-02 21:07:42 -0700 | [diff] [blame] | 210 | case PORT_E: |
| 211 | ddi_translations = ddi_translations_fdi; |
| 212 | break; |
| 213 | default: |
| 214 | BUG(); |
| 215 | } |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 216 | |
Paulo Zanoni | f72d19f | 2013-08-05 17:25:55 -0300 | [diff] [blame] | 217 | for (i = 0, reg = DDI_BUF_TRANS(port); |
| 218 | i < ARRAY_SIZE(hsw_ddi_translations_fdi); i++) { |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 219 | I915_WRITE(reg, ddi_translations[i].trans1); |
| 220 | reg += 4; |
| 221 | I915_WRITE(reg, ddi_translations[i].trans2); |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 222 | reg += 4; |
| 223 | } |
Damien Lespiau | ce4dd49 | 2014-08-01 11:07:54 +0100 | [diff] [blame] | 224 | |
| 225 | /* Choose a good default if VBT is badly populated */ |
| 226 | if (hdmi_level == HDMI_LEVEL_SHIFT_UNKNOWN || |
| 227 | hdmi_level >= n_hdmi_entries) |
| 228 | hdmi_level = hdmi_800mV_0dB; |
| 229 | |
Paulo Zanoni | 6acab15 | 2013-09-12 17:06:24 -0300 | [diff] [blame] | 230 | /* Entry 9 is for HDMI: */ |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 231 | I915_WRITE(reg, ddi_translations_hdmi[hdmi_level].trans1); |
| 232 | reg += 4; |
| 233 | I915_WRITE(reg, ddi_translations_hdmi[hdmi_level].trans2); |
| 234 | reg += 4; |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 235 | } |
| 236 | |
| 237 | /* Program DDI buffers translations for DP. By default, program ports A-D in DP |
| 238 | * mode and port E for FDI. |
| 239 | */ |
| 240 | void intel_prepare_ddi(struct drm_device *dev) |
| 241 | { |
| 242 | int port; |
| 243 | |
Paulo Zanoni | 0d536cb | 2012-11-23 16:46:41 -0200 | [diff] [blame] | 244 | if (!HAS_DDI(dev)) |
| 245 | return; |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 246 | |
Paulo Zanoni | ad8d270 | 2013-08-05 17:25:56 -0300 | [diff] [blame] | 247 | for (port = PORT_A; port <= PORT_E; port++) |
| 248 | intel_prepare_ddi_buffers(dev, port); |
Eugeni Dodonov | 45244b8 | 2012-05-09 15:37:20 -0300 | [diff] [blame] | 249 | } |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 250 | |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 251 | static void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv, |
| 252 | enum port port) |
| 253 | { |
| 254 | uint32_t reg = DDI_BUF_CTL(port); |
| 255 | int i; |
| 256 | |
| 257 | for (i = 0; i < 8; i++) { |
| 258 | udelay(1); |
| 259 | if (I915_READ(reg) & DDI_BUF_IS_IDLE) |
| 260 | return; |
| 261 | } |
| 262 | DRM_ERROR("Timeout waiting for DDI BUF %c idle bit\n", port_name(port)); |
| 263 | } |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 264 | |
| 265 | /* Starting with Haswell, different DDI ports can work in FDI mode for |
| 266 | * connection to the PCH-located connectors. For this, it is necessary to train |
| 267 | * both the DDI port and PCH receiver for the desired DDI buffer settings. |
| 268 | * |
| 269 | * The recommended port to work in FDI mode is DDI E, which we use here. Also, |
| 270 | * please note that when FDI mode is active on DDI E, it shares 2 lines with |
| 271 | * DDI A (which is used for eDP) |
| 272 | */ |
| 273 | |
| 274 | void hsw_fdi_link_train(struct drm_crtc *crtc) |
| 275 | { |
| 276 | struct drm_device *dev = crtc->dev; |
| 277 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 278 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 279 | u32 temp, i, rx_ctl_val; |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 280 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 281 | /* Set the FDI_RX_MISC pwrdn lanes and the 2 workarounds listed at the |
| 282 | * mode set "sequence for CRT port" document: |
| 283 | * - TP1 to TP2 time with the default value |
| 284 | * - FDI delay to 90h |
Damien Lespiau | 8693a82 | 2013-05-03 18:48:11 +0100 | [diff] [blame] | 285 | * |
| 286 | * WaFDIAutoLinkSetTimingOverrride:hsw |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 287 | */ |
| 288 | I915_WRITE(_FDI_RXA_MISC, FDI_RX_PWRDN_LANE1_VAL(2) | |
| 289 | FDI_RX_PWRDN_LANE0_VAL(2) | |
| 290 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); |
| 291 | |
| 292 | /* Enable the PCH Receiver FDI PLL */ |
Damien Lespiau | 3e68320 | 2012-12-11 18:48:29 +0000 | [diff] [blame] | 293 | 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] | 294 | FDI_RX_PLL_ENABLE | |
Daniel Vetter | 627eb5a | 2013-04-29 19:33:42 +0200 | [diff] [blame] | 295 | FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 296 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
| 297 | POSTING_READ(_FDI_RXA_CTL); |
| 298 | udelay(220); |
| 299 | |
| 300 | /* Switch from Rawclk to PCDclk */ |
| 301 | rx_ctl_val |= FDI_PCDCLK; |
| 302 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
| 303 | |
| 304 | /* Configure Port Clock Select */ |
Daniel Vetter | de7cfc6 | 2014-06-25 22:01:54 +0300 | [diff] [blame] | 305 | I915_WRITE(PORT_CLK_SEL(PORT_E), intel_crtc->config.ddi_pll_sel); |
| 306 | WARN_ON(intel_crtc->config.ddi_pll_sel != PORT_CLK_SEL_SPLL); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 307 | |
| 308 | /* Start the training iterating through available voltages and emphasis, |
| 309 | * testing each value twice. */ |
Jani Nikula | 1012205 | 2014-08-27 16:27:30 +0300 | [diff] [blame] | 310 | for (i = 0; i < ARRAY_SIZE(hsw_ddi_translations_fdi) * 2; i++) { |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 311 | /* Configure DP_TP_CTL with auto-training */ |
| 312 | I915_WRITE(DP_TP_CTL(PORT_E), |
| 313 | DP_TP_CTL_FDI_AUTOTRAIN | |
| 314 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | |
| 315 | DP_TP_CTL_LINK_TRAIN_PAT1 | |
| 316 | DP_TP_CTL_ENABLE); |
| 317 | |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 318 | /* Configure and enable DDI_BUF_CTL for DDI E with next voltage. |
| 319 | * DDI E does not support port reversal, the functionality is |
| 320 | * achieved on the PCH side in FDI_RX_CTL, so no need to set the |
| 321 | * port reversal bit */ |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 322 | I915_WRITE(DDI_BUF_CTL(PORT_E), |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 323 | DDI_BUF_CTL_ENABLE | |
Daniel Vetter | 33d29b1 | 2013-02-13 18:04:45 +0100 | [diff] [blame] | 324 | ((intel_crtc->config.fdi_lanes - 1) << 1) | |
Sonika Jindal | c5fe6a0 | 2014-08-11 08:57:36 +0530 | [diff] [blame] | 325 | DDI_BUF_TRANS_SELECT(i / 2)); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 326 | POSTING_READ(DDI_BUF_CTL(PORT_E)); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 327 | |
| 328 | udelay(600); |
| 329 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 330 | /* Program PCH FDI Receiver TU */ |
| 331 | I915_WRITE(_FDI_RXA_TUSIZE1, TU_SIZE(64)); |
Eugeni Dodonov | 4acf518 | 2012-07-04 20:15:16 -0300 | [diff] [blame] | 332 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 333 | /* Enable PCH FDI Receiver with auto-training */ |
| 334 | rx_ctl_val |= FDI_RX_ENABLE | FDI_LINK_TRAIN_AUTO; |
| 335 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
| 336 | POSTING_READ(_FDI_RXA_CTL); |
| 337 | |
| 338 | /* Wait for FDI receiver lane calibration */ |
| 339 | udelay(30); |
| 340 | |
| 341 | /* Unset FDI_RX_MISC pwrdn lanes */ |
| 342 | temp = I915_READ(_FDI_RXA_MISC); |
| 343 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
| 344 | I915_WRITE(_FDI_RXA_MISC, temp); |
| 345 | POSTING_READ(_FDI_RXA_MISC); |
| 346 | |
| 347 | /* Wait for FDI auto training time */ |
| 348 | udelay(5); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 349 | |
| 350 | temp = I915_READ(DP_TP_STATUS(PORT_E)); |
| 351 | if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) { |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 352 | DRM_DEBUG_KMS("FDI link training done on step %d\n", i); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 353 | |
| 354 | /* Enable normal pixel sending for FDI */ |
| 355 | I915_WRITE(DP_TP_CTL(PORT_E), |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 356 | DP_TP_CTL_FDI_AUTOTRAIN | |
| 357 | DP_TP_CTL_LINK_TRAIN_NORMAL | |
| 358 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | |
| 359 | DP_TP_CTL_ENABLE); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 360 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 361 | return; |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 362 | } |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 363 | |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 364 | temp = I915_READ(DDI_BUF_CTL(PORT_E)); |
| 365 | temp &= ~DDI_BUF_CTL_ENABLE; |
| 366 | I915_WRITE(DDI_BUF_CTL(PORT_E), temp); |
| 367 | POSTING_READ(DDI_BUF_CTL(PORT_E)); |
| 368 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 369 | /* Disable DP_TP_CTL and FDI_RX_CTL and retry */ |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 370 | temp = I915_READ(DP_TP_CTL(PORT_E)); |
| 371 | temp &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); |
| 372 | temp |= DP_TP_CTL_LINK_TRAIN_PAT1; |
| 373 | I915_WRITE(DP_TP_CTL(PORT_E), temp); |
| 374 | POSTING_READ(DP_TP_CTL(PORT_E)); |
| 375 | |
| 376 | intel_wait_ddi_buf_idle(dev_priv, PORT_E); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 377 | |
| 378 | rx_ctl_val &= ~FDI_RX_ENABLE; |
| 379 | I915_WRITE(_FDI_RXA_CTL, rx_ctl_val); |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 380 | POSTING_READ(_FDI_RXA_CTL); |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 381 | |
| 382 | /* Reset FDI_RX_MISC pwrdn lanes */ |
| 383 | temp = I915_READ(_FDI_RXA_MISC); |
| 384 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
| 385 | temp |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); |
| 386 | I915_WRITE(_FDI_RXA_MISC, temp); |
Paulo Zanoni | 248138b | 2012-11-29 11:29:31 -0200 | [diff] [blame] | 387 | POSTING_READ(_FDI_RXA_MISC); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 388 | } |
| 389 | |
Paulo Zanoni | 0494564 | 2012-11-01 21:00:59 -0200 | [diff] [blame] | 390 | DRM_ERROR("FDI link training failed!\n"); |
Eugeni Dodonov | c82e4d2 | 2012-05-09 15:37:21 -0300 | [diff] [blame] | 391 | } |
Eugeni Dodonov | 0e72a5b | 2012-05-09 15:37:27 -0300 | [diff] [blame] | 392 | |
Dave Airlie | 44905a2 | 2014-05-02 13:36:43 +1000 | [diff] [blame] | 393 | void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder) |
| 394 | { |
| 395 | struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); |
| 396 | struct intel_digital_port *intel_dig_port = |
| 397 | enc_to_dig_port(&encoder->base); |
| 398 | |
| 399 | intel_dp->DP = intel_dig_port->saved_port_bits | |
Sonika Jindal | c5fe6a0 | 2014-08-11 08:57:36 +0530 | [diff] [blame] | 400 | DDI_BUF_CTL_ENABLE | DDI_BUF_TRANS_SELECT(0); |
Dave Airlie | 44905a2 | 2014-05-02 13:36:43 +1000 | [diff] [blame] | 401 | intel_dp->DP |= DDI_PORT_WIDTH(intel_dp->lane_count); |
| 402 | |
| 403 | } |
| 404 | |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 405 | static struct intel_encoder * |
| 406 | intel_ddi_get_crtc_encoder(struct drm_crtc *crtc) |
| 407 | { |
| 408 | struct drm_device *dev = crtc->dev; |
| 409 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 410 | struct intel_encoder *intel_encoder, *ret = NULL; |
| 411 | int num_encoders = 0; |
| 412 | |
| 413 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { |
| 414 | ret = intel_encoder; |
| 415 | num_encoders++; |
| 416 | } |
| 417 | |
| 418 | if (num_encoders != 1) |
Ville Syrjälä | 84f44ce | 2013-04-17 17:48:49 +0300 | [diff] [blame] | 419 | WARN(1, "%d encoders on crtc for pipe %c\n", num_encoders, |
| 420 | pipe_name(intel_crtc->pipe)); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 421 | |
| 422 | BUG_ON(ret == NULL); |
| 423 | return ret; |
| 424 | } |
| 425 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 426 | #define LC_FREQ 2700 |
| 427 | #define LC_FREQ_2K (LC_FREQ * 2000) |
| 428 | |
| 429 | #define P_MIN 2 |
| 430 | #define P_MAX 64 |
| 431 | #define P_INC 2 |
| 432 | |
| 433 | /* Constraints for PLL good behavior */ |
| 434 | #define REF_MIN 48 |
| 435 | #define REF_MAX 400 |
| 436 | #define VCO_MIN 2400 |
| 437 | #define VCO_MAX 4800 |
| 438 | |
| 439 | #define ABS_DIFF(a, b) ((a > b) ? (a - b) : (b - a)) |
| 440 | |
| 441 | struct wrpll_rnp { |
| 442 | unsigned p, n2, r2; |
| 443 | }; |
| 444 | |
| 445 | static unsigned wrpll_get_budget_for_freq(int clock) |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 446 | { |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 447 | unsigned budget; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 448 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 449 | switch (clock) { |
| 450 | case 25175000: |
| 451 | case 25200000: |
| 452 | case 27000000: |
| 453 | case 27027000: |
| 454 | case 37762500: |
| 455 | case 37800000: |
| 456 | case 40500000: |
| 457 | case 40541000: |
| 458 | case 54000000: |
| 459 | case 54054000: |
| 460 | case 59341000: |
| 461 | case 59400000: |
| 462 | case 72000000: |
| 463 | case 74176000: |
| 464 | case 74250000: |
| 465 | case 81000000: |
| 466 | case 81081000: |
| 467 | case 89012000: |
| 468 | case 89100000: |
| 469 | case 108000000: |
| 470 | case 108108000: |
| 471 | case 111264000: |
| 472 | case 111375000: |
| 473 | case 148352000: |
| 474 | case 148500000: |
| 475 | case 162000000: |
| 476 | case 162162000: |
| 477 | case 222525000: |
| 478 | case 222750000: |
| 479 | case 296703000: |
| 480 | case 297000000: |
| 481 | budget = 0; |
| 482 | break; |
| 483 | case 233500000: |
| 484 | case 245250000: |
| 485 | case 247750000: |
| 486 | case 253250000: |
| 487 | case 298000000: |
| 488 | budget = 1500; |
| 489 | break; |
| 490 | case 169128000: |
| 491 | case 169500000: |
| 492 | case 179500000: |
| 493 | case 202000000: |
| 494 | budget = 2000; |
| 495 | break; |
| 496 | case 256250000: |
| 497 | case 262500000: |
| 498 | case 270000000: |
| 499 | case 272500000: |
| 500 | case 273750000: |
| 501 | case 280750000: |
| 502 | case 281250000: |
| 503 | case 286000000: |
| 504 | case 291750000: |
| 505 | budget = 4000; |
| 506 | break; |
| 507 | case 267250000: |
| 508 | case 268500000: |
| 509 | budget = 5000; |
| 510 | break; |
| 511 | default: |
| 512 | budget = 1000; |
| 513 | break; |
| 514 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 515 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 516 | return budget; |
| 517 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 518 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 519 | static void wrpll_update_rnp(uint64_t freq2k, unsigned budget, |
| 520 | unsigned r2, unsigned n2, unsigned p, |
| 521 | struct wrpll_rnp *best) |
| 522 | { |
| 523 | uint64_t a, b, c, d, diff, diff_best; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 524 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 525 | /* No best (r,n,p) yet */ |
| 526 | if (best->p == 0) { |
| 527 | best->p = p; |
| 528 | best->n2 = n2; |
| 529 | best->r2 = r2; |
| 530 | return; |
| 531 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 532 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 533 | /* |
| 534 | * Output clock is (LC_FREQ_2K / 2000) * N / (P * R), which compares to |
| 535 | * freq2k. |
| 536 | * |
| 537 | * delta = 1e6 * |
| 538 | * abs(freq2k - (LC_FREQ_2K * n2/(p * r2))) / |
| 539 | * freq2k; |
| 540 | * |
| 541 | * and we would like delta <= budget. |
| 542 | * |
| 543 | * If the discrepancy is above the PPM-based budget, always prefer to |
| 544 | * improve upon the previous solution. However, if you're within the |
| 545 | * budget, try to maximize Ref * VCO, that is N / (P * R^2). |
| 546 | */ |
| 547 | a = freq2k * budget * p * r2; |
| 548 | b = freq2k * budget * best->p * best->r2; |
| 549 | diff = ABS_DIFF((freq2k * p * r2), (LC_FREQ_2K * n2)); |
| 550 | diff_best = ABS_DIFF((freq2k * best->p * best->r2), |
| 551 | (LC_FREQ_2K * best->n2)); |
| 552 | c = 1000000 * diff; |
| 553 | d = 1000000 * diff_best; |
| 554 | |
| 555 | if (a < c && b < d) { |
| 556 | /* If both are above the budget, pick the closer */ |
| 557 | if (best->p * best->r2 * diff < p * r2 * diff_best) { |
| 558 | best->p = p; |
| 559 | best->n2 = n2; |
| 560 | best->r2 = r2; |
| 561 | } |
| 562 | } else if (a >= c && b < d) { |
| 563 | /* If A is below the threshold but B is above it? Update. */ |
| 564 | best->p = p; |
| 565 | best->n2 = n2; |
| 566 | best->r2 = r2; |
| 567 | } else if (a >= c && b >= d) { |
| 568 | /* Both are below the limit, so pick the higher n2/(r2*r2) */ |
| 569 | if (n2 * best->r2 * best->r2 > best->n2 * r2 * r2) { |
| 570 | best->p = p; |
| 571 | best->n2 = n2; |
| 572 | best->r2 = r2; |
| 573 | } |
| 574 | } |
| 575 | /* Otherwise a < c && b >= d, do nothing */ |
| 576 | } |
| 577 | |
Jesse Barnes | 1157855 | 2014-01-21 12:42:10 -0800 | [diff] [blame] | 578 | static int intel_ddi_calc_wrpll_link(struct drm_i915_private *dev_priv, |
| 579 | int reg) |
| 580 | { |
| 581 | int refclk = LC_FREQ; |
| 582 | int n, p, r; |
| 583 | u32 wrpll; |
| 584 | |
| 585 | wrpll = I915_READ(reg); |
Daniel Vetter | 114fe48 | 2014-06-25 22:01:48 +0300 | [diff] [blame] | 586 | switch (wrpll & WRPLL_PLL_REF_MASK) { |
| 587 | case WRPLL_PLL_SSC: |
| 588 | case WRPLL_PLL_NON_SSC: |
Jesse Barnes | 1157855 | 2014-01-21 12:42:10 -0800 | [diff] [blame] | 589 | /* |
| 590 | * We could calculate spread here, but our checking |
| 591 | * code only cares about 5% accuracy, and spread is a max of |
| 592 | * 0.5% downspread. |
| 593 | */ |
| 594 | refclk = 135; |
| 595 | break; |
Daniel Vetter | 114fe48 | 2014-06-25 22:01:48 +0300 | [diff] [blame] | 596 | case WRPLL_PLL_LCPLL: |
Jesse Barnes | 1157855 | 2014-01-21 12:42:10 -0800 | [diff] [blame] | 597 | refclk = LC_FREQ; |
| 598 | break; |
| 599 | default: |
| 600 | WARN(1, "bad wrpll refclk\n"); |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | r = wrpll & WRPLL_DIVIDER_REF_MASK; |
| 605 | p = (wrpll & WRPLL_DIVIDER_POST_MASK) >> WRPLL_DIVIDER_POST_SHIFT; |
| 606 | n = (wrpll & WRPLL_DIVIDER_FB_MASK) >> WRPLL_DIVIDER_FB_SHIFT; |
| 607 | |
Jesse Barnes | 20f0ec1 | 2014-01-22 12:58:04 -0800 | [diff] [blame] | 608 | /* Convert to KHz, p & r have a fixed point portion */ |
| 609 | return (refclk * n * 100) / (p * r); |
Jesse Barnes | 1157855 | 2014-01-21 12:42:10 -0800 | [diff] [blame] | 610 | } |
| 611 | |
Daniel Vetter | 3d51278a | 2014-07-29 20:57:08 +0200 | [diff] [blame] | 612 | static void hsw_ddi_clock_get(struct intel_encoder *encoder, |
| 613 | struct intel_crtc_config *pipe_config) |
Jesse Barnes | 1157855 | 2014-01-21 12:42:10 -0800 | [diff] [blame] | 614 | { |
| 615 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; |
Jesse Barnes | 1157855 | 2014-01-21 12:42:10 -0800 | [diff] [blame] | 616 | int link_clock = 0; |
| 617 | u32 val, pll; |
| 618 | |
Daniel Vetter | 26804af | 2014-06-25 22:01:55 +0300 | [diff] [blame] | 619 | val = pipe_config->ddi_pll_sel; |
Jesse Barnes | 1157855 | 2014-01-21 12:42:10 -0800 | [diff] [blame] | 620 | switch (val & PORT_CLK_SEL_MASK) { |
| 621 | case PORT_CLK_SEL_LCPLL_810: |
| 622 | link_clock = 81000; |
| 623 | break; |
| 624 | case PORT_CLK_SEL_LCPLL_1350: |
| 625 | link_clock = 135000; |
| 626 | break; |
| 627 | case PORT_CLK_SEL_LCPLL_2700: |
| 628 | link_clock = 270000; |
| 629 | break; |
| 630 | case PORT_CLK_SEL_WRPLL1: |
| 631 | link_clock = intel_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL1); |
| 632 | break; |
| 633 | case PORT_CLK_SEL_WRPLL2: |
| 634 | link_clock = intel_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL2); |
| 635 | break; |
| 636 | case PORT_CLK_SEL_SPLL: |
| 637 | pll = I915_READ(SPLL_CTL) & SPLL_PLL_FREQ_MASK; |
| 638 | if (pll == SPLL_PLL_FREQ_810MHz) |
| 639 | link_clock = 81000; |
| 640 | else if (pll == SPLL_PLL_FREQ_1350MHz) |
| 641 | link_clock = 135000; |
| 642 | else if (pll == SPLL_PLL_FREQ_2700MHz) |
| 643 | link_clock = 270000; |
| 644 | else { |
| 645 | WARN(1, "bad spll freq\n"); |
| 646 | return; |
| 647 | } |
| 648 | break; |
| 649 | default: |
| 650 | WARN(1, "bad port clock sel\n"); |
| 651 | return; |
| 652 | } |
| 653 | |
| 654 | pipe_config->port_clock = link_clock * 2; |
| 655 | |
| 656 | if (pipe_config->has_pch_encoder) |
| 657 | pipe_config->adjusted_mode.crtc_clock = |
| 658 | intel_dotclock_calculate(pipe_config->port_clock, |
| 659 | &pipe_config->fdi_m_n); |
| 660 | else if (pipe_config->has_dp_encoder) |
| 661 | pipe_config->adjusted_mode.crtc_clock = |
| 662 | intel_dotclock_calculate(pipe_config->port_clock, |
| 663 | &pipe_config->dp_m_n); |
| 664 | else |
| 665 | pipe_config->adjusted_mode.crtc_clock = pipe_config->port_clock; |
| 666 | } |
| 667 | |
Daniel Vetter | 3d51278a | 2014-07-29 20:57:08 +0200 | [diff] [blame] | 668 | void intel_ddi_clock_get(struct intel_encoder *encoder, |
| 669 | struct intel_crtc_config *pipe_config) |
| 670 | { |
| 671 | hsw_ddi_clock_get(encoder, pipe_config); |
| 672 | } |
| 673 | |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 674 | static void |
Damien Lespiau | d664c0c | 2014-07-29 18:06:23 +0100 | [diff] [blame] | 675 | hsw_ddi_calculate_wrpll(int clock /* in Hz */, |
| 676 | unsigned *r2_out, unsigned *n2_out, unsigned *p_out) |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 677 | { |
| 678 | uint64_t freq2k; |
| 679 | unsigned p, n2, r2; |
| 680 | struct wrpll_rnp best = { 0, 0, 0 }; |
| 681 | unsigned budget; |
| 682 | |
| 683 | freq2k = clock / 100; |
| 684 | |
| 685 | budget = wrpll_get_budget_for_freq(clock); |
| 686 | |
| 687 | /* Special case handling for 540 pixel clock: bypass WR PLL entirely |
| 688 | * and directly pass the LC PLL to it. */ |
| 689 | if (freq2k == 5400000) { |
| 690 | *n2_out = 2; |
| 691 | *p_out = 1; |
| 692 | *r2_out = 2; |
| 693 | return; |
| 694 | } |
| 695 | |
| 696 | /* |
| 697 | * Ref = LC_FREQ / R, where Ref is the actual reference input seen by |
| 698 | * the WR PLL. |
| 699 | * |
| 700 | * We want R so that REF_MIN <= Ref <= REF_MAX. |
| 701 | * Injecting R2 = 2 * R gives: |
| 702 | * REF_MAX * r2 > LC_FREQ * 2 and |
| 703 | * REF_MIN * r2 < LC_FREQ * 2 |
| 704 | * |
| 705 | * Which means the desired boundaries for r2 are: |
| 706 | * LC_FREQ * 2 / REF_MAX < r2 < LC_FREQ * 2 / REF_MIN |
| 707 | * |
| 708 | */ |
| 709 | for (r2 = LC_FREQ * 2 / REF_MAX + 1; |
| 710 | r2 <= LC_FREQ * 2 / REF_MIN; |
| 711 | r2++) { |
| 712 | |
| 713 | /* |
| 714 | * VCO = N * Ref, that is: VCO = N * LC_FREQ / R |
| 715 | * |
| 716 | * Once again we want VCO_MIN <= VCO <= VCO_MAX. |
| 717 | * Injecting R2 = 2 * R and N2 = 2 * N, we get: |
| 718 | * VCO_MAX * r2 > n2 * LC_FREQ and |
| 719 | * VCO_MIN * r2 < n2 * LC_FREQ) |
| 720 | * |
| 721 | * Which means the desired boundaries for n2 are: |
| 722 | * VCO_MIN * r2 / LC_FREQ < n2 < VCO_MAX * r2 / LC_FREQ |
| 723 | */ |
| 724 | for (n2 = VCO_MIN * r2 / LC_FREQ + 1; |
| 725 | n2 <= VCO_MAX * r2 / LC_FREQ; |
| 726 | n2++) { |
| 727 | |
| 728 | for (p = P_MIN; p <= P_MAX; p += P_INC) |
| 729 | wrpll_update_rnp(freq2k, budget, |
| 730 | r2, n2, p, &best); |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | *n2_out = best.n2; |
| 735 | *p_out = best.p; |
| 736 | *r2_out = best.r2; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 737 | } |
| 738 | |
Damien Lespiau | 0220ab6 | 2014-07-29 18:06:22 +0100 | [diff] [blame] | 739 | static bool |
Damien Lespiau | d664c0c | 2014-07-29 18:06:23 +0100 | [diff] [blame] | 740 | hsw_ddi_pll_select(struct intel_crtc *intel_crtc, |
| 741 | struct intel_encoder *intel_encoder, |
| 742 | int clock) |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 743 | { |
Damien Lespiau | d664c0c | 2014-07-29 18:06:23 +0100 | [diff] [blame] | 744 | if (intel_encoder->type == INTEL_OUTPUT_HDMI) { |
Daniel Vetter | e0b01be | 2014-06-25 22:02:01 +0300 | [diff] [blame] | 745 | struct intel_shared_dpll *pll; |
Daniel Vetter | 716c2e5 | 2014-06-25 22:02:02 +0300 | [diff] [blame] | 746 | uint32_t val; |
Damien Lespiau | 1c0b85c | 2013-05-10 14:01:51 +0100 | [diff] [blame] | 747 | unsigned p, n2, r2; |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 748 | |
Damien Lespiau | d664c0c | 2014-07-29 18:06:23 +0100 | [diff] [blame] | 749 | hsw_ddi_calculate_wrpll(clock * 1000, &r2, &n2, &p); |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 750 | |
Daniel Vetter | 114fe48 | 2014-06-25 22:01:48 +0300 | [diff] [blame] | 751 | val = WRPLL_PLL_ENABLE | WRPLL_PLL_LCPLL | |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 752 | WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) | |
| 753 | WRPLL_DIVIDER_POST(p); |
| 754 | |
Daniel Vetter | 716c2e5 | 2014-06-25 22:02:02 +0300 | [diff] [blame] | 755 | intel_crtc->config.dpll_hw_state.wrpll = val; |
| 756 | |
| 757 | pll = intel_get_shared_dpll(intel_crtc); |
| 758 | if (pll == NULL) { |
| 759 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", |
| 760 | pipe_name(intel_crtc->pipe)); |
Paulo Zanoni | 0694001 | 2013-10-30 18:27:43 -0200 | [diff] [blame] | 761 | return false; |
| 762 | } |
| 763 | |
Daniel Vetter | 716c2e5 | 2014-06-25 22:02:02 +0300 | [diff] [blame] | 764 | intel_crtc->config.ddi_pll_sel = PORT_CLK_SEL_WRPLL(pll->id); |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 765 | } |
| 766 | |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 767 | return true; |
| 768 | } |
| 769 | |
Damien Lespiau | 0220ab6 | 2014-07-29 18:06:22 +0100 | [diff] [blame] | 770 | |
| 771 | /* |
| 772 | * Tries to find a *shared* PLL for the CRTC and store it in |
| 773 | * intel_crtc->ddi_pll_sel. |
| 774 | * |
| 775 | * For private DPLLs, compute_config() should do the selection for us. This |
| 776 | * function should be folded into compute_config() eventually. |
| 777 | */ |
| 778 | bool intel_ddi_pll_select(struct intel_crtc *intel_crtc) |
| 779 | { |
| 780 | struct drm_crtc *crtc = &intel_crtc->base; |
| 781 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
Damien Lespiau | 0220ab6 | 2014-07-29 18:06:22 +0100 | [diff] [blame] | 782 | int clock = intel_crtc->config.port_clock; |
| 783 | |
| 784 | intel_put_shared_dpll(intel_crtc); |
| 785 | |
Damien Lespiau | d664c0c | 2014-07-29 18:06:23 +0100 | [diff] [blame] | 786 | return hsw_ddi_pll_select(intel_crtc, intel_encoder, clock); |
Damien Lespiau | 0220ab6 | 2014-07-29 18:06:22 +0100 | [diff] [blame] | 787 | } |
| 788 | |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 789 | void intel_ddi_set_pipe_settings(struct drm_crtc *crtc) |
| 790 | { |
| 791 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 792 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 793 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
Daniel Vetter | 3b117c8 | 2013-04-17 20:15:07 +0200 | [diff] [blame] | 794 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 795 | int type = intel_encoder->type; |
| 796 | uint32_t temp; |
| 797 | |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 798 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP || type == INTEL_OUTPUT_DP_MST) { |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 799 | temp = TRANS_MSA_SYNC_CLK; |
Daniel Vetter | 965e0c4 | 2013-03-27 00:44:57 +0100 | [diff] [blame] | 800 | switch (intel_crtc->config.pipe_bpp) { |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 801 | case 18: |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 802 | temp |= TRANS_MSA_6_BPC; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 803 | break; |
| 804 | case 24: |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 805 | temp |= TRANS_MSA_8_BPC; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 806 | break; |
| 807 | case 30: |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 808 | temp |= TRANS_MSA_10_BPC; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 809 | break; |
| 810 | case 36: |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 811 | temp |= TRANS_MSA_12_BPC; |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 812 | break; |
| 813 | default: |
Daniel Vetter | 4e53c2e | 2013-03-27 00:44:58 +0100 | [diff] [blame] | 814 | BUG(); |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 815 | } |
Paulo Zanoni | c980979 | 2012-10-23 18:30:00 -0200 | [diff] [blame] | 816 | I915_WRITE(TRANS_MSA_MISC(cpu_transcoder), temp); |
Paulo Zanoni | dae8479 | 2012-10-15 15:51:30 -0300 | [diff] [blame] | 817 | } |
| 818 | } |
| 819 | |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 820 | void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state) |
| 821 | { |
| 822 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 823 | struct drm_device *dev = crtc->dev; |
| 824 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 825 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
| 826 | uint32_t temp; |
| 827 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
| 828 | if (state == true) |
| 829 | temp |= TRANS_DDI_DP_VC_PAYLOAD_ALLOC; |
| 830 | else |
| 831 | temp &= ~TRANS_DDI_DP_VC_PAYLOAD_ALLOC; |
| 832 | I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp); |
| 833 | } |
| 834 | |
Damien Lespiau | 8228c25 | 2013-03-07 15:30:27 +0000 | [diff] [blame] | 835 | void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc) |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 836 | { |
| 837 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 838 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 839 | struct drm_encoder *encoder = &intel_encoder->base; |
Paulo Zanoni | c7670b1 | 2013-11-02 21:07:37 -0700 | [diff] [blame] | 840 | struct drm_device *dev = crtc->dev; |
| 841 | struct drm_i915_private *dev_priv = dev->dev_private; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 842 | enum pipe pipe = intel_crtc->pipe; |
Daniel Vetter | 3b117c8 | 2013-04-17 20:15:07 +0200 | [diff] [blame] | 843 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 844 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 845 | int type = intel_encoder->type; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 846 | uint32_t temp; |
| 847 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 848 | /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */ |
| 849 | temp = TRANS_DDI_FUNC_ENABLE; |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 850 | temp |= TRANS_DDI_SELECT_PORT(port); |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 851 | |
Daniel Vetter | 965e0c4 | 2013-03-27 00:44:57 +0100 | [diff] [blame] | 852 | switch (intel_crtc->config.pipe_bpp) { |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 853 | case 18: |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 854 | temp |= TRANS_DDI_BPC_6; |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 855 | break; |
| 856 | case 24: |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 857 | temp |= TRANS_DDI_BPC_8; |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 858 | break; |
| 859 | case 30: |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 860 | temp |= TRANS_DDI_BPC_10; |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 861 | break; |
| 862 | case 36: |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 863 | temp |= TRANS_DDI_BPC_12; |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 864 | break; |
| 865 | default: |
Daniel Vetter | 4e53c2e | 2013-03-27 00:44:58 +0100 | [diff] [blame] | 866 | BUG(); |
Paulo Zanoni | dfcef25 | 2012-08-08 14:15:29 -0300 | [diff] [blame] | 867 | } |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 868 | |
Ville Syrjälä | a666283 | 2013-09-10 17:03:41 +0300 | [diff] [blame] | 869 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_PVSYNC) |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 870 | temp |= TRANS_DDI_PVSYNC; |
Ville Syrjälä | a666283 | 2013-09-10 17:03:41 +0300 | [diff] [blame] | 871 | if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_PHSYNC) |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 872 | temp |= TRANS_DDI_PHSYNC; |
Paulo Zanoni | f63eb7c | 2012-08-08 14:15:28 -0300 | [diff] [blame] | 873 | |
Paulo Zanoni | e6f0bfc | 2012-10-23 18:30:04 -0200 | [diff] [blame] | 874 | if (cpu_transcoder == TRANSCODER_EDP) { |
| 875 | switch (pipe) { |
| 876 | case PIPE_A: |
Paulo Zanoni | c7670b1 | 2013-11-02 21:07:37 -0700 | [diff] [blame] | 877 | /* On Haswell, can only use the always-on power well for |
| 878 | * eDP when not using the panel fitter, and when not |
| 879 | * using motion blur mitigation (which we don't |
| 880 | * support). */ |
Daniel Vetter | fabf6e5 | 2014-05-29 14:10:22 +0200 | [diff] [blame] | 881 | if (IS_HASWELL(dev) && |
| 882 | (intel_crtc->config.pch_pfit.enabled || |
| 883 | intel_crtc->config.pch_pfit.force_thru)) |
Daniel Vetter | d6dd9eb | 2013-01-29 16:35:20 -0200 | [diff] [blame] | 884 | temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; |
| 885 | else |
| 886 | temp |= TRANS_DDI_EDP_INPUT_A_ON; |
Paulo Zanoni | e6f0bfc | 2012-10-23 18:30:04 -0200 | [diff] [blame] | 887 | break; |
| 888 | case PIPE_B: |
| 889 | temp |= TRANS_DDI_EDP_INPUT_B_ONOFF; |
| 890 | break; |
| 891 | case PIPE_C: |
| 892 | temp |= TRANS_DDI_EDP_INPUT_C_ONOFF; |
| 893 | break; |
| 894 | default: |
| 895 | BUG(); |
| 896 | break; |
| 897 | } |
| 898 | } |
| 899 | |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 900 | if (type == INTEL_OUTPUT_HDMI) { |
Daniel Vetter | 6897b4b | 2014-04-24 23:54:47 +0200 | [diff] [blame] | 901 | if (intel_crtc->config.has_hdmi_sink) |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 902 | temp |= TRANS_DDI_MODE_SELECT_HDMI; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 903 | else |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 904 | temp |= TRANS_DDI_MODE_SELECT_DVI; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 905 | |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 906 | } else if (type == INTEL_OUTPUT_ANALOG) { |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 907 | temp |= TRANS_DDI_MODE_SELECT_FDI; |
Daniel Vetter | 33d29b1 | 2013-02-13 18:04:45 +0100 | [diff] [blame] | 908 | temp |= (intel_crtc->config.fdi_lanes - 1) << 1; |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 909 | |
| 910 | } else if (type == INTEL_OUTPUT_DISPLAYPORT || |
| 911 | type == INTEL_OUTPUT_EDP) { |
| 912 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 913 | |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 914 | if (intel_dp->is_mst) { |
| 915 | temp |= TRANS_DDI_MODE_SELECT_DP_MST; |
| 916 | } else |
| 917 | temp |= TRANS_DDI_MODE_SELECT_DP_SST; |
| 918 | |
| 919 | temp |= DDI_PORT_WIDTH(intel_dp->lane_count); |
| 920 | } else if (type == INTEL_OUTPUT_DP_MST) { |
| 921 | struct intel_dp *intel_dp = &enc_to_mst(encoder)->primary->dp; |
| 922 | |
| 923 | if (intel_dp->is_mst) { |
| 924 | temp |= TRANS_DDI_MODE_SELECT_DP_MST; |
| 925 | } else |
| 926 | temp |= TRANS_DDI_MODE_SELECT_DP_SST; |
Paulo Zanoni | 7739c33 | 2012-10-15 15:51:29 -0300 | [diff] [blame] | 927 | |
Daniel Vetter | 17aa6be | 2013-04-30 14:01:40 +0200 | [diff] [blame] | 928 | temp |= DDI_PORT_WIDTH(intel_dp->lane_count); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 929 | } else { |
Ville Syrjälä | 84f44ce | 2013-04-17 17:48:49 +0300 | [diff] [blame] | 930 | WARN(1, "Invalid encoder type %d for pipe %c\n", |
| 931 | intel_encoder->type, pipe_name(pipe)); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 932 | } |
| 933 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 934 | I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 935 | } |
| 936 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 937 | void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv, |
| 938 | enum transcoder cpu_transcoder) |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 939 | { |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 940 | uint32_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 941 | uint32_t val = I915_READ(reg); |
| 942 | |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 943 | val &= ~(TRANS_DDI_FUNC_ENABLE | TRANS_DDI_PORT_MASK | TRANS_DDI_DP_VC_PAYLOAD_ALLOC); |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 944 | val |= TRANS_DDI_PORT_NONE; |
Paulo Zanoni | 8d9ddbc | 2012-10-05 12:05:53 -0300 | [diff] [blame] | 945 | I915_WRITE(reg, val); |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 946 | } |
| 947 | |
Paulo Zanoni | bcbc889 | 2012-10-26 19:05:51 -0200 | [diff] [blame] | 948 | bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector) |
| 949 | { |
| 950 | struct drm_device *dev = intel_connector->base.dev; |
| 951 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 952 | struct intel_encoder *intel_encoder = intel_connector->encoder; |
| 953 | int type = intel_connector->base.connector_type; |
| 954 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
| 955 | enum pipe pipe = 0; |
| 956 | enum transcoder cpu_transcoder; |
Paulo Zanoni | 882244a | 2014-04-01 14:55:12 -0300 | [diff] [blame] | 957 | enum intel_display_power_domain power_domain; |
Paulo Zanoni | bcbc889 | 2012-10-26 19:05:51 -0200 | [diff] [blame] | 958 | uint32_t tmp; |
| 959 | |
Paulo Zanoni | 882244a | 2014-04-01 14:55:12 -0300 | [diff] [blame] | 960 | power_domain = intel_display_port_power_domain(intel_encoder); |
| 961 | if (!intel_display_power_enabled(dev_priv, power_domain)) |
| 962 | return false; |
| 963 | |
Paulo Zanoni | bcbc889 | 2012-10-26 19:05:51 -0200 | [diff] [blame] | 964 | if (!intel_encoder->get_hw_state(intel_encoder, &pipe)) |
| 965 | return false; |
| 966 | |
| 967 | if (port == PORT_A) |
| 968 | cpu_transcoder = TRANSCODER_EDP; |
| 969 | else |
Daniel Vetter | 1a240d4 | 2012-11-29 22:18:51 +0100 | [diff] [blame] | 970 | cpu_transcoder = (enum transcoder) pipe; |
Paulo Zanoni | bcbc889 | 2012-10-26 19:05:51 -0200 | [diff] [blame] | 971 | |
| 972 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
| 973 | |
| 974 | switch (tmp & TRANS_DDI_MODE_SELECT_MASK) { |
| 975 | case TRANS_DDI_MODE_SELECT_HDMI: |
| 976 | case TRANS_DDI_MODE_SELECT_DVI: |
| 977 | return (type == DRM_MODE_CONNECTOR_HDMIA); |
| 978 | |
| 979 | case TRANS_DDI_MODE_SELECT_DP_SST: |
| 980 | if (type == DRM_MODE_CONNECTOR_eDP) |
| 981 | return true; |
Paulo Zanoni | bcbc889 | 2012-10-26 19:05:51 -0200 | [diff] [blame] | 982 | return (type == DRM_MODE_CONNECTOR_DisplayPort); |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 983 | case TRANS_DDI_MODE_SELECT_DP_MST: |
| 984 | /* if the transcoder is in MST state then |
| 985 | * connector isn't connected */ |
| 986 | return false; |
Paulo Zanoni | bcbc889 | 2012-10-26 19:05:51 -0200 | [diff] [blame] | 987 | |
| 988 | case TRANS_DDI_MODE_SELECT_FDI: |
| 989 | return (type == DRM_MODE_CONNECTOR_VGA); |
| 990 | |
| 991 | default: |
| 992 | return false; |
| 993 | } |
| 994 | } |
| 995 | |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 996 | bool intel_ddi_get_hw_state(struct intel_encoder *encoder, |
| 997 | enum pipe *pipe) |
| 998 | { |
| 999 | struct drm_device *dev = encoder->base.dev; |
| 1000 | struct drm_i915_private *dev_priv = dev->dev_private; |
Paulo Zanoni | fe43d3f | 2012-10-15 15:51:39 -0300 | [diff] [blame] | 1001 | enum port port = intel_ddi_get_encoder_port(encoder); |
Imre Deak | 6d129be | 2014-03-05 16:20:54 +0200 | [diff] [blame] | 1002 | enum intel_display_power_domain power_domain; |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 1003 | u32 tmp; |
| 1004 | int i; |
| 1005 | |
Imre Deak | 6d129be | 2014-03-05 16:20:54 +0200 | [diff] [blame] | 1006 | power_domain = intel_display_port_power_domain(encoder); |
| 1007 | if (!intel_display_power_enabled(dev_priv, power_domain)) |
| 1008 | return false; |
| 1009 | |
Paulo Zanoni | fe43d3f | 2012-10-15 15:51:39 -0300 | [diff] [blame] | 1010 | tmp = I915_READ(DDI_BUF_CTL(port)); |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 1011 | |
| 1012 | if (!(tmp & DDI_BUF_CTL_ENABLE)) |
| 1013 | return false; |
| 1014 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 1015 | if (port == PORT_A) { |
| 1016 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 1017 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 1018 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { |
| 1019 | case TRANS_DDI_EDP_INPUT_A_ON: |
| 1020 | case TRANS_DDI_EDP_INPUT_A_ONOFF: |
| 1021 | *pipe = PIPE_A; |
| 1022 | break; |
| 1023 | case TRANS_DDI_EDP_INPUT_B_ONOFF: |
| 1024 | *pipe = PIPE_B; |
| 1025 | break; |
| 1026 | case TRANS_DDI_EDP_INPUT_C_ONOFF: |
| 1027 | *pipe = PIPE_C; |
| 1028 | break; |
| 1029 | } |
| 1030 | |
| 1031 | return true; |
| 1032 | } else { |
| 1033 | for (i = TRANSCODER_A; i <= TRANSCODER_C; i++) { |
| 1034 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(i)); |
| 1035 | |
| 1036 | if ((tmp & TRANS_DDI_PORT_MASK) |
| 1037 | == TRANS_DDI_SELECT_PORT(port)) { |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 1038 | if ((tmp & TRANS_DDI_MODE_SELECT_MASK) == TRANS_DDI_MODE_SELECT_DP_MST) |
| 1039 | return false; |
| 1040 | |
Paulo Zanoni | ad80a81 | 2012-10-24 16:06:19 -0200 | [diff] [blame] | 1041 | *pipe = i; |
| 1042 | return true; |
| 1043 | } |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 1044 | } |
| 1045 | } |
| 1046 | |
Ville Syrjälä | 84f44ce | 2013-04-17 17:48:49 +0300 | [diff] [blame] | 1047 | 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] | 1048 | |
Jesse Barnes | 22f9fe5 | 2013-04-02 10:03:55 -0700 | [diff] [blame] | 1049 | return false; |
Daniel Vetter | 85234cd | 2012-07-02 13:27:29 +0200 | [diff] [blame] | 1050 | } |
| 1051 | |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1052 | void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc) |
| 1053 | { |
| 1054 | struct drm_crtc *crtc = &intel_crtc->base; |
| 1055 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 1056 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
| 1057 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
Daniel Vetter | 3b117c8 | 2013-04-17 20:15:07 +0200 | [diff] [blame] | 1058 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1059 | |
Paulo Zanoni | bb523fc | 2012-10-23 18:29:56 -0200 | [diff] [blame] | 1060 | if (cpu_transcoder != TRANSCODER_EDP) |
| 1061 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), |
| 1062 | TRANS_CLK_SEL_PORT(port)); |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1063 | } |
| 1064 | |
| 1065 | void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc) |
| 1066 | { |
| 1067 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; |
Daniel Vetter | 3b117c8 | 2013-04-17 20:15:07 +0200 | [diff] [blame] | 1068 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1069 | |
Paulo Zanoni | bb523fc | 2012-10-23 18:29:56 -0200 | [diff] [blame] | 1070 | if (cpu_transcoder != TRANSCODER_EDP) |
| 1071 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), |
| 1072 | TRANS_CLK_SEL_DISABLED); |
Paulo Zanoni | fc91463 | 2012-10-05 12:05:54 -0300 | [diff] [blame] | 1073 | } |
| 1074 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1075 | static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder) |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1076 | { |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1077 | struct drm_encoder *encoder = &intel_encoder->base; |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1078 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; |
Daniel Vetter | 30cf6db | 2014-04-24 23:54:58 +0200 | [diff] [blame] | 1079 | struct intel_crtc *crtc = to_intel_crtc(encoder->crtc); |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1080 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1081 | int type = intel_encoder->type; |
| 1082 | |
Daniel Vetter | 30cf6db | 2014-04-24 23:54:58 +0200 | [diff] [blame] | 1083 | if (crtc->config.has_audio) { |
| 1084 | DRM_DEBUG_DRIVER("Audio on pipe %c on DDI\n", |
| 1085 | pipe_name(crtc->pipe)); |
| 1086 | |
| 1087 | /* write eld */ |
| 1088 | DRM_DEBUG_DRIVER("DDI audio: write eld information\n"); |
| 1089 | intel_write_eld(encoder, &crtc->config.adjusted_mode); |
| 1090 | } |
| 1091 | |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1092 | if (type == INTEL_OUTPUT_EDP) { |
| 1093 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
Daniel Vetter | 4be7378 | 2014-01-17 14:39:48 +0100 | [diff] [blame] | 1094 | intel_edp_panel_on(intel_dp); |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1095 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1096 | |
Daniel Vetter | de7cfc6 | 2014-06-25 22:01:54 +0300 | [diff] [blame] | 1097 | WARN_ON(crtc->config.ddi_pll_sel == PORT_CLK_SEL_NONE); |
| 1098 | I915_WRITE(PORT_CLK_SEL(port), crtc->config.ddi_pll_sel); |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1099 | |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1100 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1101 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
Daniel Vetter | 30cf6db | 2014-04-24 23:54:58 +0200 | [diff] [blame] | 1102 | |
Dave Airlie | 44905a2 | 2014-05-02 13:36:43 +1000 | [diff] [blame] | 1103 | intel_ddi_init_dp_buf_reg(intel_encoder); |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1104 | |
| 1105 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); |
| 1106 | intel_dp_start_link_train(intel_dp); |
| 1107 | intel_dp_complete_link_train(intel_dp); |
Imre Deak | 3ab9c63 | 2013-05-03 12:57:41 +0300 | [diff] [blame] | 1108 | if (port != PORT_A) |
| 1109 | intel_dp_stop_link_train(intel_dp); |
Daniel Vetter | 30cf6db | 2014-04-24 23:54:58 +0200 | [diff] [blame] | 1110 | } else if (type == INTEL_OUTPUT_HDMI) { |
| 1111 | struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); |
| 1112 | |
| 1113 | intel_hdmi->set_infoframes(encoder, |
| 1114 | crtc->config.has_hdmi_sink, |
| 1115 | &crtc->config.adjusted_mode); |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1116 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1117 | } |
| 1118 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1119 | static void intel_ddi_post_disable(struct intel_encoder *intel_encoder) |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1120 | { |
| 1121 | struct drm_encoder *encoder = &intel_encoder->base; |
| 1122 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; |
| 1123 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1124 | int type = intel_encoder->type; |
Paulo Zanoni | 2886e93 | 2012-10-05 12:06:00 -0300 | [diff] [blame] | 1125 | uint32_t val; |
Paulo Zanoni | a836bdf | 2012-10-15 15:51:32 -0300 | [diff] [blame] | 1126 | bool wait = false; |
Paulo Zanoni | 2886e93 | 2012-10-05 12:06:00 -0300 | [diff] [blame] | 1127 | |
| 1128 | val = I915_READ(DDI_BUF_CTL(port)); |
| 1129 | if (val & DDI_BUF_CTL_ENABLE) { |
| 1130 | val &= ~DDI_BUF_CTL_ENABLE; |
| 1131 | I915_WRITE(DDI_BUF_CTL(port), val); |
Paulo Zanoni | a836bdf | 2012-10-15 15:51:32 -0300 | [diff] [blame] | 1132 | wait = true; |
Paulo Zanoni | 2886e93 | 2012-10-05 12:06:00 -0300 | [diff] [blame] | 1133 | } |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1134 | |
Paulo Zanoni | a836bdf | 2012-10-15 15:51:32 -0300 | [diff] [blame] | 1135 | val = I915_READ(DP_TP_CTL(port)); |
| 1136 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); |
| 1137 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; |
| 1138 | I915_WRITE(DP_TP_CTL(port), val); |
| 1139 | |
| 1140 | if (wait) |
| 1141 | intel_wait_ddi_buf_idle(dev_priv, port); |
| 1142 | |
Jani Nikula | 76bb80e | 2013-11-15 15:29:57 +0200 | [diff] [blame] | 1143 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1144 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
Jani Nikula | 76bb80e | 2013-11-15 15:29:57 +0200 | [diff] [blame] | 1145 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); |
Jani Nikula | 24f3e09 | 2014-03-17 16:43:36 +0200 | [diff] [blame] | 1146 | intel_edp_panel_vdd_on(intel_dp); |
Daniel Vetter | 4be7378 | 2014-01-17 14:39:48 +0100 | [diff] [blame] | 1147 | intel_edp_panel_off(intel_dp); |
Paulo Zanoni | 82a4d9c | 2012-10-23 18:30:07 -0200 | [diff] [blame] | 1148 | } |
| 1149 | |
Paulo Zanoni | 6441ab5 | 2012-10-05 12:05:58 -0300 | [diff] [blame] | 1150 | I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE); |
| 1151 | } |
| 1152 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1153 | static void intel_enable_ddi(struct intel_encoder *intel_encoder) |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 1154 | { |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1155 | struct drm_encoder *encoder = &intel_encoder->base; |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1156 | struct drm_crtc *crtc = encoder->crtc; |
| 1157 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 1158 | int pipe = intel_crtc->pipe; |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1159 | struct drm_device *dev = encoder->dev; |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 1160 | struct drm_i915_private *dev_priv = dev->dev_private; |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1161 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
| 1162 | int type = intel_encoder->type; |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1163 | uint32_t tmp; |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 1164 | |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1165 | if (type == INTEL_OUTPUT_HDMI) { |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 1166 | struct intel_digital_port *intel_dig_port = |
| 1167 | enc_to_dig_port(encoder); |
| 1168 | |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1169 | /* In HDMI/DVI mode, the port width, and swing/emphasis values |
| 1170 | * are ignored so nothing special needs to be done besides |
| 1171 | * enabling the port. |
| 1172 | */ |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 1173 | I915_WRITE(DDI_BUF_CTL(port), |
Stéphane Marchesin | bcf53de | 2013-07-12 13:54:41 -0700 | [diff] [blame] | 1174 | intel_dig_port->saved_port_bits | |
| 1175 | DDI_BUF_CTL_ENABLE); |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1176 | } else if (type == INTEL_OUTPUT_EDP) { |
| 1177 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 1178 | |
Imre Deak | 3ab9c63 | 2013-05-03 12:57:41 +0300 | [diff] [blame] | 1179 | if (port == PORT_A) |
| 1180 | intel_dp_stop_link_train(intel_dp); |
| 1181 | |
Daniel Vetter | 4be7378 | 2014-01-17 14:39:48 +0100 | [diff] [blame] | 1182 | intel_edp_backlight_on(intel_dp); |
Rodrigo Vivi | 4906557 | 2013-07-11 18:45:05 -0300 | [diff] [blame] | 1183 | intel_edp_psr_enable(intel_dp); |
Paulo Zanoni | 6547fef | 2012-10-15 15:51:40 -0300 | [diff] [blame] | 1184 | } |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1185 | |
Daniel Vetter | 9ed109a | 2014-04-24 23:54:52 +0200 | [diff] [blame] | 1186 | if (intel_crtc->config.has_audio) { |
Paulo Zanoni | d45a0bf | 2014-05-21 17:29:31 -0300 | [diff] [blame] | 1187 | intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO); |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1188 | tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); |
| 1189 | tmp |= ((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4)); |
| 1190 | I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp); |
| 1191 | } |
Daniel Vetter | 5ab432e | 2012-06-30 08:59:56 +0200 | [diff] [blame] | 1192 | } |
| 1193 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1194 | static void intel_disable_ddi(struct intel_encoder *intel_encoder) |
Daniel Vetter | 5ab432e | 2012-06-30 08:59:56 +0200 | [diff] [blame] | 1195 | { |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1196 | struct drm_encoder *encoder = &intel_encoder->base; |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1197 | struct drm_crtc *crtc = encoder->crtc; |
| 1198 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); |
| 1199 | int pipe = intel_crtc->pipe; |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1200 | int type = intel_encoder->type; |
Wang Xingchao | 7b9f35a | 2013-01-22 23:25:25 +0800 | [diff] [blame] | 1201 | struct drm_device *dev = encoder->dev; |
| 1202 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1203 | uint32_t tmp; |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1204 | |
Paulo Zanoni | d45a0bf | 2014-05-21 17:29:31 -0300 | [diff] [blame] | 1205 | /* We can't touch HSW_AUD_PIN_ELD_CP_VLD uncionditionally because this |
| 1206 | * register is part of the power well on Haswell. */ |
| 1207 | if (intel_crtc->config.has_audio) { |
| 1208 | tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); |
| 1209 | tmp &= ~((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << |
| 1210 | (pipe * 4)); |
| 1211 | I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp); |
| 1212 | intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO); |
| 1213 | } |
Paulo Zanoni | 2831d842 | 2013-03-06 20:03:09 -0300 | [diff] [blame] | 1214 | |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1215 | if (type == INTEL_OUTPUT_EDP) { |
| 1216 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
| 1217 | |
Rodrigo Vivi | 4906557 | 2013-07-11 18:45:05 -0300 | [diff] [blame] | 1218 | intel_edp_psr_disable(intel_dp); |
Daniel Vetter | 4be7378 | 2014-01-17 14:39:48 +0100 | [diff] [blame] | 1219 | intel_edp_backlight_off(intel_dp); |
Paulo Zanoni | d6c50ff | 2012-10-23 18:30:06 -0200 | [diff] [blame] | 1220 | } |
Eugeni Dodonov | 72662e1 | 2012-05-09 15:37:31 -0300 | [diff] [blame] | 1221 | } |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1222 | |
Damien Lespiau | ad13d60 | 2014-07-29 18:06:24 +0100 | [diff] [blame] | 1223 | static int bdw_get_cdclk_freq(struct drm_i915_private *dev_priv) |
| 1224 | { |
| 1225 | uint32_t lcpll = I915_READ(LCPLL_CTL); |
| 1226 | uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; |
| 1227 | |
| 1228 | if (lcpll & LCPLL_CD_SOURCE_FCLK) |
| 1229 | return 800000; |
| 1230 | else if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) |
| 1231 | return 450000; |
| 1232 | else if (freq == LCPLL_CLK_FREQ_450) |
| 1233 | return 450000; |
| 1234 | else if (freq == LCPLL_CLK_FREQ_54O_BDW) |
| 1235 | return 540000; |
| 1236 | else if (freq == LCPLL_CLK_FREQ_337_5_BDW) |
| 1237 | return 337500; |
| 1238 | else |
| 1239 | return 675000; |
| 1240 | } |
| 1241 | |
| 1242 | static int hsw_get_cdclk_freq(struct drm_i915_private *dev_priv) |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1243 | { |
Paulo Zanoni | e39bf98 | 2013-11-02 21:07:36 -0700 | [diff] [blame] | 1244 | struct drm_device *dev = dev_priv->dev; |
Paulo Zanoni | a400664 | 2013-08-06 18:57:11 -0300 | [diff] [blame] | 1245 | uint32_t lcpll = I915_READ(LCPLL_CTL); |
Paulo Zanoni | e39bf98 | 2013-11-02 21:07:36 -0700 | [diff] [blame] | 1246 | uint32_t freq = lcpll & LCPLL_CLK_FREQ_MASK; |
Paulo Zanoni | a400664 | 2013-08-06 18:57:11 -0300 | [diff] [blame] | 1247 | |
Damien Lespiau | ad13d60 | 2014-07-29 18:06:24 +0100 | [diff] [blame] | 1248 | if (lcpll & LCPLL_CD_SOURCE_FCLK) |
Paulo Zanoni | a400664 | 2013-08-06 18:57:11 -0300 | [diff] [blame] | 1249 | return 800000; |
Damien Lespiau | ad13d60 | 2014-07-29 18:06:24 +0100 | [diff] [blame] | 1250 | else if (I915_READ(FUSE_STRAP) & HSW_CDCLK_LIMIT) |
Paulo Zanoni | b2b877f | 2013-05-03 17:23:42 -0300 | [diff] [blame] | 1251 | return 450000; |
Damien Lespiau | ad13d60 | 2014-07-29 18:06:24 +0100 | [diff] [blame] | 1252 | else if (freq == LCPLL_CLK_FREQ_450) |
Paulo Zanoni | b2b877f | 2013-05-03 17:23:42 -0300 | [diff] [blame] | 1253 | return 450000; |
Damien Lespiau | ad13d60 | 2014-07-29 18:06:24 +0100 | [diff] [blame] | 1254 | else if (IS_ULT(dev)) |
| 1255 | return 337500; |
| 1256 | else |
| 1257 | return 540000; |
| 1258 | } |
| 1259 | |
| 1260 | int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv) |
| 1261 | { |
| 1262 | struct drm_device *dev = dev_priv->dev; |
| 1263 | |
| 1264 | if (IS_BROADWELL(dev)) |
| 1265 | return bdw_get_cdclk_freq(dev_priv); |
| 1266 | |
| 1267 | /* Haswell */ |
| 1268 | return hsw_get_cdclk_freq(dev_priv); |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1269 | } |
| 1270 | |
Daniel Vetter | e0b01be | 2014-06-25 22:02:01 +0300 | [diff] [blame] | 1271 | static void hsw_ddi_pll_enable(struct drm_i915_private *dev_priv, |
| 1272 | struct intel_shared_dpll *pll) |
| 1273 | { |
Daniel Vetter | e0b01be | 2014-06-25 22:02:01 +0300 | [diff] [blame] | 1274 | I915_WRITE(WRPLL_CTL(pll->id), pll->hw_state.wrpll); |
| 1275 | POSTING_READ(WRPLL_CTL(pll->id)); |
| 1276 | udelay(20); |
| 1277 | } |
| 1278 | |
Daniel Vetter | 1203043 | 2014-06-25 22:02:00 +0300 | [diff] [blame] | 1279 | static void hsw_ddi_pll_disable(struct drm_i915_private *dev_priv, |
| 1280 | struct intel_shared_dpll *pll) |
| 1281 | { |
| 1282 | uint32_t val; |
| 1283 | |
| 1284 | val = I915_READ(WRPLL_CTL(pll->id)); |
Daniel Vetter | 1203043 | 2014-06-25 22:02:00 +0300 | [diff] [blame] | 1285 | I915_WRITE(WRPLL_CTL(pll->id), val & ~WRPLL_PLL_ENABLE); |
| 1286 | POSTING_READ(WRPLL_CTL(pll->id)); |
| 1287 | } |
| 1288 | |
Daniel Vetter | d452c5b | 2014-07-04 11:27:39 -0300 | [diff] [blame] | 1289 | static bool hsw_ddi_pll_get_hw_state(struct drm_i915_private *dev_priv, |
| 1290 | struct intel_shared_dpll *pll, |
| 1291 | struct intel_dpll_hw_state *hw_state) |
| 1292 | { |
| 1293 | uint32_t val; |
| 1294 | |
| 1295 | if (!intel_display_power_enabled(dev_priv, POWER_DOMAIN_PLLS)) |
| 1296 | return false; |
| 1297 | |
| 1298 | val = I915_READ(WRPLL_CTL(pll->id)); |
| 1299 | hw_state->wrpll = val; |
| 1300 | |
| 1301 | return val & WRPLL_PLL_ENABLE; |
| 1302 | } |
| 1303 | |
Damien Lespiau | ca1381b | 2014-07-15 15:05:33 +0100 | [diff] [blame] | 1304 | static const char * const hsw_ddi_pll_names[] = { |
Daniel Vetter | 9cd8693 | 2014-06-25 22:01:57 +0300 | [diff] [blame] | 1305 | "WRPLL 1", |
| 1306 | "WRPLL 2", |
| 1307 | }; |
| 1308 | |
Damien Lespiau | 143b307 | 2014-07-29 18:06:19 +0100 | [diff] [blame] | 1309 | static void hsw_shared_dplls_init(struct drm_i915_private *dev_priv) |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1310 | { |
Daniel Vetter | 9cd8693 | 2014-06-25 22:01:57 +0300 | [diff] [blame] | 1311 | int i; |
| 1312 | |
Daniel Vetter | 716c2e5 | 2014-06-25 22:02:02 +0300 | [diff] [blame] | 1313 | dev_priv->num_shared_dpll = 2; |
Daniel Vetter | 9cd8693 | 2014-06-25 22:01:57 +0300 | [diff] [blame] | 1314 | |
Daniel Vetter | 716c2e5 | 2014-06-25 22:02:02 +0300 | [diff] [blame] | 1315 | for (i = 0; i < dev_priv->num_shared_dpll; i++) { |
Daniel Vetter | 9cd8693 | 2014-06-25 22:01:57 +0300 | [diff] [blame] | 1316 | dev_priv->shared_dplls[i].id = i; |
| 1317 | dev_priv->shared_dplls[i].name = hsw_ddi_pll_names[i]; |
Daniel Vetter | 1203043 | 2014-06-25 22:02:00 +0300 | [diff] [blame] | 1318 | dev_priv->shared_dplls[i].disable = hsw_ddi_pll_disable; |
Daniel Vetter | e0b01be | 2014-06-25 22:02:01 +0300 | [diff] [blame] | 1319 | dev_priv->shared_dplls[i].enable = hsw_ddi_pll_enable; |
Daniel Vetter | d452c5b | 2014-07-04 11:27:39 -0300 | [diff] [blame] | 1320 | dev_priv->shared_dplls[i].get_hw_state = |
| 1321 | hsw_ddi_pll_get_hw_state; |
Daniel Vetter | 9cd8693 | 2014-06-25 22:01:57 +0300 | [diff] [blame] | 1322 | } |
Damien Lespiau | 143b307 | 2014-07-29 18:06:19 +0100 | [diff] [blame] | 1323 | } |
| 1324 | |
| 1325 | void intel_ddi_pll_init(struct drm_device *dev) |
| 1326 | { |
| 1327 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1328 | uint32_t val = I915_READ(LCPLL_CTL); |
| 1329 | |
| 1330 | hsw_shared_dplls_init(dev_priv); |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1331 | |
| 1332 | /* The LCPLL register should be turned on by the BIOS. For now let's |
| 1333 | * just check its state and print errors in case something is wrong. |
| 1334 | * Don't even try to turn it on. |
| 1335 | */ |
| 1336 | |
Paulo Zanoni | b2b877f | 2013-05-03 17:23:42 -0300 | [diff] [blame] | 1337 | DRM_DEBUG_KMS("CDCLK running at %dKHz\n", |
Paulo Zanoni | 79f689a | 2012-10-05 12:05:52 -0300 | [diff] [blame] | 1338 | intel_ddi_get_cdclk_freq(dev_priv)); |
| 1339 | |
| 1340 | if (val & LCPLL_CD_SOURCE_FCLK) |
| 1341 | DRM_ERROR("CDCLK source is not LCPLL\n"); |
| 1342 | |
| 1343 | if (val & LCPLL_PLL_DISABLE) |
| 1344 | DRM_ERROR("LCPLL is disabled\n"); |
| 1345 | } |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1346 | |
| 1347 | void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder) |
| 1348 | { |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 1349 | struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder); |
| 1350 | struct intel_dp *intel_dp = &intel_dig_port->dp; |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1351 | struct drm_i915_private *dev_priv = encoder->dev->dev_private; |
Paulo Zanoni | 174edf1 | 2012-10-26 19:05:50 -0200 | [diff] [blame] | 1352 | enum port port = intel_dig_port->port; |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1353 | uint32_t val; |
Syam Sidhardhan | f3e227d | 2013-02-25 04:05:38 +0530 | [diff] [blame] | 1354 | bool wait = false; |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1355 | |
| 1356 | if (I915_READ(DP_TP_CTL(port)) & DP_TP_CTL_ENABLE) { |
| 1357 | val = I915_READ(DDI_BUF_CTL(port)); |
| 1358 | if (val & DDI_BUF_CTL_ENABLE) { |
| 1359 | val &= ~DDI_BUF_CTL_ENABLE; |
| 1360 | I915_WRITE(DDI_BUF_CTL(port), val); |
| 1361 | wait = true; |
| 1362 | } |
| 1363 | |
| 1364 | val = I915_READ(DP_TP_CTL(port)); |
| 1365 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); |
| 1366 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; |
| 1367 | I915_WRITE(DP_TP_CTL(port), val); |
| 1368 | POSTING_READ(DP_TP_CTL(port)); |
| 1369 | |
| 1370 | if (wait) |
| 1371 | intel_wait_ddi_buf_idle(dev_priv, port); |
| 1372 | } |
| 1373 | |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 1374 | val = DP_TP_CTL_ENABLE | |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1375 | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE; |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 1376 | if (intel_dp->is_mst) |
| 1377 | val |= DP_TP_CTL_MODE_MST; |
| 1378 | else { |
| 1379 | val |= DP_TP_CTL_MODE_SST; |
| 1380 | if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) |
| 1381 | val |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; |
| 1382 | } |
Paulo Zanoni | c19b066 | 2012-10-15 15:51:41 -0300 | [diff] [blame] | 1383 | I915_WRITE(DP_TP_CTL(port), val); |
| 1384 | POSTING_READ(DP_TP_CTL(port)); |
| 1385 | |
| 1386 | intel_dp->DP |= DDI_BUF_CTL_ENABLE; |
| 1387 | I915_WRITE(DDI_BUF_CTL(port), intel_dp->DP); |
| 1388 | POSTING_READ(DDI_BUF_CTL(port)); |
| 1389 | |
| 1390 | udelay(600); |
| 1391 | } |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1392 | |
Paulo Zanoni | 1ad960f | 2012-11-01 21:05:05 -0200 | [diff] [blame] | 1393 | void intel_ddi_fdi_disable(struct drm_crtc *crtc) |
| 1394 | { |
| 1395 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; |
| 1396 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
| 1397 | uint32_t val; |
| 1398 | |
| 1399 | intel_ddi_post_disable(intel_encoder); |
| 1400 | |
| 1401 | val = I915_READ(_FDI_RXA_CTL); |
| 1402 | val &= ~FDI_RX_ENABLE; |
| 1403 | I915_WRITE(_FDI_RXA_CTL, val); |
| 1404 | |
| 1405 | val = I915_READ(_FDI_RXA_MISC); |
| 1406 | val &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
| 1407 | val |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); |
| 1408 | I915_WRITE(_FDI_RXA_MISC, val); |
| 1409 | |
| 1410 | val = I915_READ(_FDI_RXA_CTL); |
| 1411 | val &= ~FDI_PCDCLK; |
| 1412 | I915_WRITE(_FDI_RXA_CTL, val); |
| 1413 | |
| 1414 | val = I915_READ(_FDI_RXA_CTL); |
| 1415 | val &= ~FDI_RX_PLL_ENABLE; |
| 1416 | I915_WRITE(_FDI_RXA_CTL, val); |
| 1417 | } |
| 1418 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1419 | static void intel_ddi_hot_plug(struct intel_encoder *intel_encoder) |
| 1420 | { |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 1421 | struct intel_digital_port *intel_dig_port = enc_to_dig_port(&intel_encoder->base); |
| 1422 | int type = intel_dig_port->base.type; |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1423 | |
Dave Airlie | 0e32b39 | 2014-05-02 14:02:48 +1000 | [diff] [blame] | 1424 | if (type != INTEL_OUTPUT_DISPLAYPORT && |
| 1425 | type != INTEL_OUTPUT_EDP && |
| 1426 | type != INTEL_OUTPUT_UNKNOWN) { |
| 1427 | return; |
| 1428 | } |
| 1429 | |
| 1430 | intel_dp_hot_plug(intel_encoder); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1431 | } |
| 1432 | |
Ville Syrjälä | 6801c18 | 2013-09-24 14:24:05 +0300 | [diff] [blame] | 1433 | void intel_ddi_get_config(struct intel_encoder *encoder, |
| 1434 | struct intel_crtc_config *pipe_config) |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 1435 | { |
| 1436 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; |
| 1437 | struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); |
| 1438 | enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; |
| 1439 | u32 temp, flags = 0; |
| 1440 | |
| 1441 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
| 1442 | if (temp & TRANS_DDI_PHSYNC) |
| 1443 | flags |= DRM_MODE_FLAG_PHSYNC; |
| 1444 | else |
| 1445 | flags |= DRM_MODE_FLAG_NHSYNC; |
| 1446 | if (temp & TRANS_DDI_PVSYNC) |
| 1447 | flags |= DRM_MODE_FLAG_PVSYNC; |
| 1448 | else |
| 1449 | flags |= DRM_MODE_FLAG_NVSYNC; |
| 1450 | |
| 1451 | pipe_config->adjusted_mode.flags |= flags; |
Ville Syrjälä | 42571ae | 2013-09-06 23:29:00 +0300 | [diff] [blame] | 1452 | |
| 1453 | switch (temp & TRANS_DDI_BPC_MASK) { |
| 1454 | case TRANS_DDI_BPC_6: |
| 1455 | pipe_config->pipe_bpp = 18; |
| 1456 | break; |
| 1457 | case TRANS_DDI_BPC_8: |
| 1458 | pipe_config->pipe_bpp = 24; |
| 1459 | break; |
| 1460 | case TRANS_DDI_BPC_10: |
| 1461 | pipe_config->pipe_bpp = 30; |
| 1462 | break; |
| 1463 | case TRANS_DDI_BPC_12: |
| 1464 | pipe_config->pipe_bpp = 36; |
| 1465 | break; |
| 1466 | default: |
| 1467 | break; |
| 1468 | } |
Ville Syrjälä | eb14cb7 | 2013-09-10 17:02:54 +0300 | [diff] [blame] | 1469 | |
| 1470 | switch (temp & TRANS_DDI_MODE_SELECT_MASK) { |
| 1471 | case TRANS_DDI_MODE_SELECT_HDMI: |
Daniel Vetter | 6897b4b | 2014-04-24 23:54:47 +0200 | [diff] [blame] | 1472 | pipe_config->has_hdmi_sink = true; |
Ville Syrjälä | eb14cb7 | 2013-09-10 17:02:54 +0300 | [diff] [blame] | 1473 | case TRANS_DDI_MODE_SELECT_DVI: |
| 1474 | case TRANS_DDI_MODE_SELECT_FDI: |
| 1475 | break; |
| 1476 | case TRANS_DDI_MODE_SELECT_DP_SST: |
| 1477 | case TRANS_DDI_MODE_SELECT_DP_MST: |
| 1478 | pipe_config->has_dp_encoder = true; |
| 1479 | intel_dp_get_m_n(intel_crtc, pipe_config); |
| 1480 | break; |
| 1481 | default: |
| 1482 | break; |
| 1483 | } |
Daniel Vetter | 1021442 | 2013-11-18 07:38:16 +0100 | [diff] [blame] | 1484 | |
Paulo Zanoni | a60551b | 2014-05-21 16:23:20 -0300 | [diff] [blame] | 1485 | if (intel_display_power_enabled(dev_priv, POWER_DOMAIN_AUDIO)) { |
| 1486 | temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); |
| 1487 | if (temp & (AUDIO_OUTPUT_ENABLE_A << (intel_crtc->pipe * 4))) |
| 1488 | pipe_config->has_audio = true; |
| 1489 | } |
Daniel Vetter | 9ed109a | 2014-04-24 23:54:52 +0200 | [diff] [blame] | 1490 | |
Daniel Vetter | 1021442 | 2013-11-18 07:38:16 +0100 | [diff] [blame] | 1491 | if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp_bpp && |
| 1492 | pipe_config->pipe_bpp > dev_priv->vbt.edp_bpp) { |
| 1493 | /* |
| 1494 | * This is a big fat ugly hack. |
| 1495 | * |
| 1496 | * Some machines in UEFI boot mode provide us a VBT that has 18 |
| 1497 | * bpp and 1.62 GHz link bandwidth for eDP, which for reasons |
| 1498 | * unknown we fail to light up. Yet the same BIOS boots up with |
| 1499 | * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as |
| 1500 | * max, not what it tells us to use. |
| 1501 | * |
| 1502 | * Note: This will still be broken if the eDP panel is not lit |
| 1503 | * up by the BIOS, and thus we can't get the mode at module |
| 1504 | * load. |
| 1505 | */ |
| 1506 | DRM_DEBUG_KMS("pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n", |
| 1507 | pipe_config->pipe_bpp, dev_priv->vbt.edp_bpp); |
| 1508 | dev_priv->vbt.edp_bpp = pipe_config->pipe_bpp; |
| 1509 | } |
Jesse Barnes | 1157855 | 2014-01-21 12:42:10 -0800 | [diff] [blame] | 1510 | |
Daniel Vetter | 3d51278a | 2014-07-29 20:57:08 +0200 | [diff] [blame] | 1511 | hsw_ddi_clock_get(encoder, pipe_config); |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 1512 | } |
| 1513 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1514 | static void intel_ddi_destroy(struct drm_encoder *encoder) |
| 1515 | { |
| 1516 | /* HDMI has nothing special to destroy, so we can go with this. */ |
| 1517 | intel_dp_encoder_destroy(encoder); |
| 1518 | } |
| 1519 | |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1520 | static bool intel_ddi_compute_config(struct intel_encoder *encoder, |
| 1521 | struct intel_crtc_config *pipe_config) |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1522 | { |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1523 | int type = encoder->type; |
Daniel Vetter | eccb140 | 2013-05-22 00:50:22 +0200 | [diff] [blame] | 1524 | int port = intel_ddi_get_encoder_port(encoder); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1525 | |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1526 | WARN(type == INTEL_OUTPUT_UNKNOWN, "compute_config() on unknown output!\n"); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1527 | |
Daniel Vetter | eccb140 | 2013-05-22 00:50:22 +0200 | [diff] [blame] | 1528 | if (port == PORT_A) |
| 1529 | pipe_config->cpu_transcoder = TRANSCODER_EDP; |
| 1530 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1531 | if (type == INTEL_OUTPUT_HDMI) |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1532 | return intel_hdmi_compute_config(encoder, pipe_config); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1533 | else |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1534 | return intel_dp_compute_config(encoder, pipe_config); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1535 | } |
| 1536 | |
| 1537 | static const struct drm_encoder_funcs intel_ddi_funcs = { |
| 1538 | .destroy = intel_ddi_destroy, |
| 1539 | }; |
| 1540 | |
Paulo Zanoni | 4a28ae5 | 2013-10-09 13:52:36 -0300 | [diff] [blame] | 1541 | static struct intel_connector * |
| 1542 | intel_ddi_init_dp_connector(struct intel_digital_port *intel_dig_port) |
| 1543 | { |
| 1544 | struct intel_connector *connector; |
| 1545 | enum port port = intel_dig_port->port; |
| 1546 | |
| 1547 | connector = kzalloc(sizeof(*connector), GFP_KERNEL); |
| 1548 | if (!connector) |
| 1549 | return NULL; |
| 1550 | |
| 1551 | intel_dig_port->dp.output_reg = DDI_BUF_CTL(port); |
| 1552 | if (!intel_dp_init_connector(intel_dig_port, connector)) { |
| 1553 | kfree(connector); |
| 1554 | return NULL; |
| 1555 | } |
| 1556 | |
| 1557 | return connector; |
| 1558 | } |
| 1559 | |
| 1560 | static struct intel_connector * |
| 1561 | intel_ddi_init_hdmi_connector(struct intel_digital_port *intel_dig_port) |
| 1562 | { |
| 1563 | struct intel_connector *connector; |
| 1564 | enum port port = intel_dig_port->port; |
| 1565 | |
| 1566 | connector = kzalloc(sizeof(*connector), GFP_KERNEL); |
| 1567 | if (!connector) |
| 1568 | return NULL; |
| 1569 | |
| 1570 | intel_dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port); |
| 1571 | intel_hdmi_init_connector(intel_dig_port, connector); |
| 1572 | |
| 1573 | return connector; |
| 1574 | } |
| 1575 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1576 | void intel_ddi_init(struct drm_device *dev, enum port port) |
| 1577 | { |
Damien Lespiau | 876a8cd | 2012-12-11 18:48:30 +0000 | [diff] [blame] | 1578 | struct drm_i915_private *dev_priv = dev->dev_private; |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1579 | struct intel_digital_port *intel_dig_port; |
| 1580 | struct intel_encoder *intel_encoder; |
| 1581 | struct drm_encoder *encoder; |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 1582 | bool init_hdmi, init_dp; |
| 1583 | |
| 1584 | init_hdmi = (dev_priv->vbt.ddi_port_info[port].supports_dvi || |
| 1585 | dev_priv->vbt.ddi_port_info[port].supports_hdmi); |
| 1586 | init_dp = dev_priv->vbt.ddi_port_info[port].supports_dp; |
| 1587 | if (!init_dp && !init_hdmi) { |
Chris Wilson | f68d697 | 2014-08-04 07:15:09 +0100 | [diff] [blame] | 1588 | DRM_DEBUG_KMS("VBT says port %c is not DVI/HDMI/DP compatible, assuming it is\n", |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 1589 | port_name(port)); |
| 1590 | init_hdmi = true; |
| 1591 | init_dp = true; |
| 1592 | } |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1593 | |
Daniel Vetter | b14c567 | 2013-09-19 12:18:32 +0200 | [diff] [blame] | 1594 | intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1595 | if (!intel_dig_port) |
| 1596 | return; |
| 1597 | |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1598 | intel_encoder = &intel_dig_port->base; |
| 1599 | encoder = &intel_encoder->base; |
| 1600 | |
| 1601 | drm_encoder_init(dev, encoder, &intel_ddi_funcs, |
| 1602 | DRM_MODE_ENCODER_TMDS); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1603 | |
Daniel Vetter | 5bfe2ac | 2013-03-27 00:44:55 +0100 | [diff] [blame] | 1604 | intel_encoder->compute_config = intel_ddi_compute_config; |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1605 | intel_encoder->enable = intel_enable_ddi; |
| 1606 | intel_encoder->pre_enable = intel_ddi_pre_enable; |
| 1607 | intel_encoder->disable = intel_disable_ddi; |
| 1608 | intel_encoder->post_disable = intel_ddi_post_disable; |
| 1609 | intel_encoder->get_hw_state = intel_ddi_get_hw_state; |
Jesse Barnes | 045ac3b | 2013-05-14 17:08:26 -0700 | [diff] [blame] | 1610 | intel_encoder->get_config = intel_ddi_get_config; |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1611 | |
| 1612 | intel_dig_port->port = port; |
Stéphane Marchesin | bcf53de | 2013-07-12 13:54:41 -0700 | [diff] [blame] | 1613 | intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) & |
| 1614 | (DDI_BUF_PORT_REVERSAL | |
| 1615 | DDI_A_4_LANES); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1616 | |
| 1617 | intel_encoder->type = INTEL_OUTPUT_UNKNOWN; |
Chris Wilson | f68d697 | 2014-08-04 07:15:09 +0100 | [diff] [blame] | 1618 | intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); |
Ville Syrjälä | bc079e8 | 2014-03-03 16:15:28 +0200 | [diff] [blame] | 1619 | intel_encoder->cloneable = 0; |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1620 | intel_encoder->hot_plug = intel_ddi_hot_plug; |
| 1621 | |
Chris Wilson | f68d697 | 2014-08-04 07:15:09 +0100 | [diff] [blame] | 1622 | if (init_dp) { |
| 1623 | if (!intel_ddi_init_dp_connector(intel_dig_port)) |
| 1624 | goto err; |
Dave Airlie | 13cf550 | 2014-06-18 11:29:35 +1000 | [diff] [blame] | 1625 | |
Chris Wilson | f68d697 | 2014-08-04 07:15:09 +0100 | [diff] [blame] | 1626 | intel_dig_port->hpd_pulse = intel_dp_hpd_pulse; |
| 1627 | dev_priv->hpd_irq_port[port] = intel_dig_port; |
| 1628 | } |
Daniel Vetter | 21a8e6a | 2013-04-10 23:28:35 +0200 | [diff] [blame] | 1629 | |
Paulo Zanoni | 311a209 | 2013-09-12 17:12:18 -0300 | [diff] [blame] | 1630 | /* In theory we don't need the encoder->type check, but leave it just in |
| 1631 | * case we have some really bad VBTs... */ |
Chris Wilson | f68d697 | 2014-08-04 07:15:09 +0100 | [diff] [blame] | 1632 | if (intel_encoder->type != INTEL_OUTPUT_EDP && init_hdmi) { |
| 1633 | if (!intel_ddi_init_hdmi_connector(intel_dig_port)) |
| 1634 | goto err; |
Daniel Vetter | 21a8e6a | 2013-04-10 23:28:35 +0200 | [diff] [blame] | 1635 | } |
Chris Wilson | f68d697 | 2014-08-04 07:15:09 +0100 | [diff] [blame] | 1636 | |
| 1637 | return; |
| 1638 | |
| 1639 | err: |
| 1640 | drm_encoder_cleanup(encoder); |
| 1641 | kfree(intel_dig_port); |
Paulo Zanoni | 00c09d7 | 2012-10-26 19:05:52 -0200 | [diff] [blame] | 1642 | } |